CN203245059U - Electrical appliances and components - Google Patents

Abstract

The utility model discloses a heated liquid dispenser comprising a liquid heating portion including a liquid heating device, a dispensing portion and other portion. The heated liquid dispenser is characterized in that the portions are removably connectable together, the other portion is connectable between the heating portion and the dispensing portion, the heated liquid dispenser has a liquid reservoir defined by one or more of said portions, and the heating portion comprises a floor of the reservoir.

Description

Electric device and member

The application is that application number is 200920178051.8, the applying date be October 9 in 2009 day, be called the dividing an application of utility application of " electric device and member ".

Technical field

The utility model relates to a kind of electric component, especially home electric, as liquid heater and/or agitator with and member, especially (although not getting rid of ground) relate to heating element heater, relate to the heat controller of controlling this heating element heater, the control method that relates to this controller, and for the computer program of carrying out this control method.

Background technology

Usually, thick-film heating element generally includes one or more heating traces, and this trace is printed on the dielectric substrate as ink or paint, and sintering is to form the trace of high resistivity.Connect trace and can be printed on separation layer, sintering forms the connection trace with low-resistivity.This dielectric substrate can be made by insulating material, such as pottery, and perhaps can be for having the metal of insulation meter surface layer.Such thick film element typically is used for heating vessel, flows through type (flow-through) heater, electron ion and other household electrical appliance.In heating vessel, this substrate typically is the steel plate of general planar, forms the bottom of liquid storage device, this trace deposition on downside to form underfloor heating element heater.

Heating element heater often needs the element protection of some forms, and when this element begins when overheated, element protection is configured to disconnect heating current.In thick film element, provide protection to be realized by the mechanical temp controlled device, such as the bimetallic devices that contacts with element.Yet, in a lot of application, more preferably element protection is integrated in the thick film element.An example of this mode is " E-fast " (RTM) protection of element; for example be disclosed among the WO2006/083162A1; in this example, thick film element is deposited on the insulator, and this insulator comprises the first and second insulating barriers and between the conductive layer between the two.When element over-temperature, the leakage current between this thick film element and this electrically conductive layer is detected, and as reaction, this heating current is disconnected.Should " E-fast " element protection have and be proved to be effectively, need more cheaply solution but use for some.

Published patent EP-A-286215 has disclosed a kind of thick film heater for hobboing cutter, comprises the thick film temperature sensor trace with high-temperature coefficient.This heating trace and sensor trace can use same technique manufacturing.For detecting hot localised points, this sensor trace can be arranged to closely follow corresponding heating trace, so that can cover the large zone of substrate.

Published patent EP-A-485211 has disclosed a kind of thick film heater, comprising: the conductive heater trace of being made by pure nickel and the resistance trace of being made by standard thick-film resistor material, intersect with the heating trace and mutually as thermistor.This thick film heater can be combined in the kettle, and this kettle has vapor sensor on the top of kettle reservoir.

Published patent GB-A-2269980 discloses a kind of kettle with thick film heater element and first and second thick film TEMP traces, and this first and second thick film temperature sensors trace is configured to detect by the difference that detects the resistance between this first and second temperature sensor the inclination of kettle.

Applicant's published patent WO08/012506A1 discloses a kind of wireless electric connector, has the electric current transmission member that is sealed in this wireless electric connector, and flushable electric device is in conjunction with such connector.Applicant's publication WO09/109762 discloses the many-sided of this flushable electric device.

Number of patent application is that the patent of WO09/020384 discloses a kind of milk-foaming device, and wherein mixing part (comprising for the motor that stirs) is positioned among the cap assemblies of this device.The heat-storage device electrical separation of this agitator/cap assemblies and lid arrangement.

The heating of milk and/or foaming present special problem, although these problems may occur in other the liquid with similarity.These problems comprise: prevent with heated liquid during heating in or adhere to afterwards this reservoir; The position of agitator and speed make it have best performance; The position of the self-operated thermostatic controller in the device and Temperature Setting; The thermal mass of heating element heater; Reset the ability of self-operated thermostatic controller, so that this device can re-use immediately after milk is poured out from device; Device how to be identified in sedimental accumulation on the heating element heater so that need to be removed up hill and dale.

In case the milk deposit clings or burns at heating element heater, such as vinegar or to cure the cleaning agent of family expenses of soda just no longer valid; These deposits can use by industrial cleaning solution and remove, but this is not suitable for family expenses.For example, US3755184 discloses a kind of cleaning technique that uses the solvent Teflon (Telflon) of now having forbidden.

Applicant's publication WO-A-07/096630 discloses a kind of liquid distributor, to its improvement openly in this application.

The utility model content

According to an aspect of the present utility model, thick-film heating element is provided, comprising: the substrate with thick-film heating trace; And temperature sensor, comprise formation thick film TEMP trace thereon; Wherein this TEMP trace comprises: one or more firsts of being made by the first material, this the first material has the resistance of high resistivity and/or high-temperature coefficient, and one or more second portions of being made by the second material, this second material has the resistance of low-resistivity and/or low-temperature coefficient.

According to another aspect of the present utility model, kind of a thick-film heating element is provided, comprising: the substrate with thick-film heating trace; And temperature sensor, comprise formation thick film TEMP trace thereon; Wherein this heating trace comprises heating part at least one pair of almost parallel and that at one end connect, wherein this TEMP trace the part of almost parallel between extend near the Sensor section of the almost parallel that connects comprising at one end.

According on the other hand of the present utility model, a kind of thick-film heating element is provided, comprising: the substrate with thick-film heating trace; And temperature sensor, comprise formation thick film TEMP trace thereon; Wherein being somebody's turn to do heating trace and temperature sensor trace forms with same thick-film material.

According to another aspect of the present utility model, a kind of thick-film heating element is provided, comprising: substrate and whole vapor sensor formed thereon with thick-film heating trace.

In an embodiment of the present utility model, provide a kind of printing or thick-film heating element with one or more additional traces.This additional traces can be made by PTC (positive temperature coefficient) material.This additional traces can be used for monitor the temperature of this element, and such as in normal use procedure, overheated with under test example such as the dry combustion method situation is used for monitoring the scale of piling up or is used for this heater of identification whether be used for the liquid of heating outside dewatering.This additional traces is arranged to as vapor sensor, can be used for monitoring local heating or be used for monitoring the rising of local humidity/moisture.Can be perceived and can adopt " dithering " to process to strengthen to improve useful temperature survey resolution from the signal of this additional traces.

According on the other hand of the present utility model, a kind of heating liquid distributor is provided, comprises: reservoir can operate the firing equipment for these reservoir contents of heating, be used for distributing the distributing equipment of these reservoir contents, and be used for stirring the equipment of these reservoir contents.

According on the other hand of the present utility model, the heating liquid distributor is provided, comprise: reservoir, can operate the firing equipment for these reservoir contents of heating, be used for distributing the distributing equipment of these reservoir contents, with the equipment that be used for to stir these reservoir contents, wherein this firing equipment comprises heater and is used for holding liquid chambers, this liquid chambers and this reservoir thermo-contact of the liquid that is heated by this heater.

According on the other hand of the present utility model, a kind of liquid heating is provided, comprise: the first liquid chamber, operation is used for the electric driving heater of the first liquid in this first liquid chamber of heating, with with the second liquid chamber of this first liquid chamber thermo-contact, so that this second liquid that is arranged in the second liquid chamber is indirectly heated by the heat of this first liquid, this device comprises that the steam that will be somebody's turn to do from this heated first liquid from this first chamber imports to this second chamber, so that this steam is by this second liquid.This second chamber can roughly be arranged in this first cavity, to strengthen the thermo-contact of the two.This second chamber can remove from this first chamber.

According on the other hand of the present utility model, has a kind of liquid heating element plate, comprise: the local heat element, be arranged to by the substrate between this element board and this heating element heater and element board thermo-contact, this substrate is thicker at contiguous this heating element heater place, thereby distributes equably heat on this element board.The thickness of this substrate can further reduce towards its center.Preferably, other parts of described substrate further reduce towards the center thickness of substrate.

According on the other hand of the present utility model, a kind of liquid charger is provided, comprise and the element board that is heated liquid and contacts, with local heating element heater, be arranged to by the substrate between this element board and this heating element heater and element board thermo-contact, this substrate has the space at contiguous this heating element heater place, so that the uniform heat distribution on this element board.This space is included in the raceway groove in the surface of this substrate of this element board.This raceway groove and this local heat element roughly consistently extend.

According on the other hand of the present utility model, a kind of liquid heating element plate is provided, comprise: the local heat element, be arranged to by the substrate between this element board and this heating element heater and element board thermo-contact, this substrate extends outwardly and crosses this element board so that on this element board uniform heat distribution.The extension outwardly of this substrate can be in the plane of the interior section of this substrate, or extends from that plane.This element board can have from the heat conduction sidewall that wherein extends, this substrate extend outwardly can with this sidewall thermo-contact.

According on the other hand of the present utility model, a kind of liquid heating element plate is provided, have the local heat element of being arranged to the element board thermo-contact, this local heat element has the shape of elongated coiling, so that the uniform heat distribution on this element board.The the second local heating element heater that is positioned at this first local heating element heater outside can be provided.

According on the other hand of the present utility model, a kind of heating liquid and agitating device are provided, comprising: liquid storage device has the heating element heater plate in its bottom; Be used for stirring the rotatable agitator of this reservoir liquid, this heating element heater plate has hot linked sheathed heater with it, and this sheathed heater is roughly concentric with this rotating spoon.This agitator is preferably located on this element board, has a little gap between the two.This agitator comprises the radially outer part and the inner radial coupling part that have for the device that reduce agitator resistance relative with this heater.This inner radial coupling part is shorter than this radially outer part in the axial direction.This inner radial coupling part is perforation.This agitator comprises for the equipment that promotes that liquid flows at this agitator axial direction.This agitator comprises for the equipment that promotes that liquid flows in the radial direction at this agitator.The equipment of this promotion liquid flow comprises one or more rotatable blades.This agitator preferably is equipped with the sheathed heater rightabout from this and directly extends.This agitator is preferably near radially the extension sidewall of this reservoir.This agitator is preferably mounted on this reservoir, and towards this element board toward this reservoir inside towards downward-extension.This agitator can be arranged to make this liquid to produce foam, for example be used for making the foaming milk that Cappuccino is used, or simply for the liquid during the agitating heating, for example the used milk of iron is taken in heating.This foaming part is positioned in the inner radial of the periphery of this agitator.This foaming part is axially located as away from this element board.This agitator can comprise temperature sensor, and thermocouple for example is used for the temperature of direct sensing liquid; The axle that this sensor can pass this agitator is connected to controller.

According on the other hand of the present utility model, a kind of heating liquid and agitating device are provided, comprising: liquid storage device has the heater for the liquid that is positioned at this reservoir; With the agitator that is used for this reservoir liquid; This device is included in the heating minimizing of this heater or closes the controller of having no progeny for activating this agitator.Preferably, this controller comprise that a timer be used for to determine that this agitator activates after the heating during, perhaps self-operated thermostatic controller is used for determining when stable the temperature of liquid is after the heating.

According on the other hand of the present utility model, provide a kind of serviceability temperature checkout equipment to detect the method for the solid sediment of the liquid heater that is used for heating milk or phase quasi-liquid, comprise: specific temperature rise and the first threshold of time after relatively during initial heating, if this specific temperature rise has surpassed this threshold value and this absolute temperature has surpassed Second Threshold, determine the solid sediment situation.

According on the other hand of the present utility model, provide a kind of serviceability temperature checkout equipment to detect the method for the solid sediment of the liquid heater that is used for heating milk or phase quasi-liquid, comprise: specific temperature rise and the threshold value of time after relatively during initial heating, if this climbing has surpassed this threshold value, determine the dry combustion method situation.

According on the other hand of the present utility model, a kind of heating liquid and agitating device are provided, comprising: liquid storage device, this liquid storage device has the element board that is positioned at the liquid of this reservoir for heating; With the agitator that is used for stirring the liquid that is positioned at this reservoir.This device comprises the controller for detection of the specific temperature rise of this element board between the period of heating, if this climbing has surpassed threshold value, determines this agitator disappearance or inoperation.

According on the other hand of the present utility model, a kind of heating liquid and agitating device are provided, comprising: liquid storage device, this liquid storage device has the heater that is positioned at the liquid of this reservoir for heating; With the agitator that is used for stirring the liquid that is positioned at this reservoir.This agitator comprises the agitating element that is arranged in this reservoir, is electromagnetically coupled to the driving arrangement outside this reservoir.This driving arrangement can comprise solenoid.

According on the other hand of the present utility model, a kind of heating liquid distributor is provided, comprises: liquid storage device and separable modules, this assembly is by the electric driving of the attachment device of this reservoir, this assembly comprises a plurality of discrete electrical airway dysfunctions, for example agitator and pump the formula distributor.

Description of drawings

Specific embodiment of the present utility model is described with reference to accompanying drawing, and the below is the brief overview of accompanying drawing.

Fig. 1 is for according to of the present utility model first or the kettle of the second embodiment and the schematic diagram that the thick film element plate is combined.

Fig. 2 is the plane that thick film element plate among the utility model the first embodiment and temperature sensor are combined.

Fig. 3 is the plane that thick film element plate among the utility model the second embodiment and temperature sensor are combined.

Fig. 4 is for according to the of the present utility model the 3rd or the kettle of the 4th embodiment and the schematic diagram that the thick film element plate is combined.

Fig. 5 is the plane that thick film element plate among the utility model the 3rd embodiment and vapor sensor are combined.

Fig. 6 is the plane that thick film element plate among the utility model the 4th embodiment and vapor sensor are combined.

Fig. 7 is the plane of the electric capacity vapor sensor among embodiment of the utility model.

Fig. 8 is the circuit diagram of the sensor circuit of use the first embodiment of the present utility model.

Fig. 9 illustrates the digital translation value such as the analog signal that is produced by the signal transducer among the embodiment in the utility model or vapor sensor.

Figure 10 illustrates the digital translation value such as the analog signal that is produced by the signal transducer among the embodiment in the utility model or vapor sensor,, the moving average of this digital translation value is as the digital measurement signal.

Figure 11 illustrates the digital translation value such as the analog signal that is produced by the signal transducer among the embodiment in the utility model or vapor sensor, the dithering signal is used at this before transforming analog signal being carried out numeral, and the moving average of this digital translation value is as the digital measurement signal.

Figure 12 shows the example diagrammatic representation of the first prior art of heating liquid distributor.

Figure 13 illustrates reservoir in the example among Figure 12 and the sectional view of distributing equipment.

Figure 14 shows the second prior art example of heating liquid distributor.

Figure 15 shows the top view for the suitable temp of heating element controller of the first and second prior art examples.

Figure 16-18 shows the different embodiment of the heating liquid distributor that comprises at least three separating parts.

Figure 19 shows be used to the commutative distribution portion that is connected to heating part.

Figure 20 and 21 shows interchangeable distribution portion.

Figure 22 shows the reservoir of filling for reversing.

Figure 23 shows the heating liquid distributor that the electricity with one drives agitator.

Figure 24 shows the heating liquid distributor of the hand mixer with one.

When Figure 25 a and 25b show assembling or after the assembling, has the heating liquid distributor that recharges thing.

Figure 26 shows the heating liquid distributor with reservoir, and this reservoir comprises inner chamber and exocoel.

Figure 27 shows the profile on the A-A plane of Figure 26.

Figure 28 shows the inner chamber that removes behind the exocoel.

Figure 29 a-29c shows the schematic cross-section of the various distortion of the heated reservoir that has comprised inner oar, axle and bearing housing.

Figure 29 d, 29e and 29f show respectively the schematic cross-section of the different oars in the foam maker among the embodiment in the utility model.

Figure 29 g and 29h show respectively the above and below three-dimensional view from another foam maker.

Figure 29 i shows the three-dimensional view of the agitator of another embodiment of the present utility model.

Figure 29 j shows the three-dimensional view of the foam maker of another embodiment of the present utility model.

Figure 29 k shows the three-dimensional view of the foam maker of another embodiment of the present utility model.

Figure 30 a, 30b and 30c show the schematic cross-section of the heated reservoir of different variation, and the substrate outline-shaped of this reservoir becomes the more uniform form that heat is distributed.

Figure 31 a and 31b show the schematic cross-section of heated reservoir, and the substrate outline-shaped of this reservoir becomes the more uniform form that heat is distributed.Figure 31 b has comprised self-operated thermostatic controller.

Figure 32 a and 32b show respectively the schematic cross-section of the heated reservoir of different distortion, and the substrate of this reservoir extends outside the periphery of reservoir.

Figure 33 a and 33b show the schematic cross-section of the heated reservoir of different distortion, and this reservoir has the self-operated thermostatic controller on the periphery outside that is positioned at reservoir.

Figure 34 a, 34b and 34c show respectively the alternative embodiment of heating element heater.

Figure 35 shows a kind of schematic cross-section of heating liquid distributor, and this device has removable electric operation pump and is installed in the interior agitator of this appliance cover subdivision.

Figure 36 shows the cross sectional representation of the liquid heating vessel among the first embodiment, this container in the first chamber, produce steam force to pass in the second cavity liquid so that the liquid in the second chamber force to be heated.

Figure 37 shows the cross sectional representation of the liquid heating vessel among the second embodiment, and the steam that this container produces in the first chamber is passed in the liquid that is heated in the second chamber.

The time curve of the ordinary milk of the resistance that Figure 38 illustrates the PTC sensor under clean element surface situation between the period of heating.

Figure 39 illustrates the time curve of resistance in the dry combustion method test of PTC sensor, and heater during test is in the situation that switch on without any liquid in the reservoir.

Figure 40 illustrates the time curve of resistance under test situation of PTC sensor, allows liquid dry combustion method in reservoir in the test.

Figure 41 illustrates the time curve of resistance between five coherent periods of heating when milk precipitates is accumulated in heater of PTC sensor.

Figure 42 illustrates originally 20 seconds the situation during in the chart of Figure 41 each.

Figure 43 a and 43b show the algorithm flow chart that milk burns for detection of dry combustion method with in milk foam maker.

The specific embodiment

With reference in the description of embodiment, similar between different embodiment or similarly parts with same designated.

Heating vessel with thermistor

Fig. 1 shows a kettle with electronic controller, the example of a heating vessel of using as the first and second embodiment of the present utility model.In this example, this kettle is wireless kettle, comprise:vessel 1 and havepower source base 2 andbottom wireless connector 3 and 4 of independent body, for example the CS4/CS7 (power supply substrate cassette) and the CP7 (device plug) that sell of 360 ° of wireless connectors of the described pattern of disclosed patent WO-A-94/06185 and/or Auto control Co., Ltd can be used as reference.This power supply substrate connects can be connected to the supply socket (not shown) bypower line 13.

Thisvessel 1 comprises be used to thereservoir 5 that holds heated water andbase section 6 also having stem bar 7,lid 8 and handle 9.Water is formed onelement board 12 heating of the bottom of thisreservoir 5, and comprises the heating element heater (namely towards base section 6) that is positioned at downside.Thiselement board 12 can use such as the described Easifix of WO99/17645 (RTM) device and be mounted to this vessel.This element comprises thick film element.Preferably, thiselement board 12 is comprised of stainless steel.This element board can be the shape that circle, ellipse, rectangle or any required being fit to are mounted to vessel.Thiselement board 12 below can be detailed description.

This base section comprises theelectromagnetic controller 10 for control container operation state, and the below has the more description ofdetails.User interface 11 allows the user to operate this container, and the display of the mode of operation of this container can be provided.This controller electronics can be separated between describeduser interface 11 and controller 10.Thermistor 14 is arranged to the temperature by the water in thiselement board 12sensing reservoirs 5, and preferably isolates with this heating element heater heat.In this example, do not have steam pipe from the top delivering vapor of thisreservoir 5 tocontroller 10, because can determine boiling by the input inspection ofthermistor 14 rather than by sensing steam, the below can the more description of details.Thisthermistor 14 can have negative temperature coefficient (NTC).In the description of some embodiment below, boil by being different from the Equipment Inspection of temperature sensing, so thisthermistor 14 is optional.

This container can have one or more supplementary features, and the some of them feature has the more description of details below.Then, for fear of repetition, some these features can outline here.

The additional Heating Characteristics of this container can comprise " insulation " feature, and this feature is so that liquid remains on a predetermined temperature, preferably after boiling; This can be realized by the interrupt enable of main heating element heater, or is realized by interruption or the sustained activation of the second heating element heater.This predetermined temperature can be just in time under boiling point, or is lower temperature, and such as 80 ℃, this predetermined temperature can be by user selection.

Another Heating Characteristics is that (sub-boil) feature is boiled in the Asia, and wherein, liquid is heated to the predetermined temperature under the boiling point, and such as 80 ℃ of the usefulness of making coffee, then adding thermoelectric power can turn-off or reduce, for example deexcitation insulation pattern.This predetermined temperature can be by user selection.

Another Heating Characteristics is to prolong to boil feature, and liquid is heated to boiling whereby, then boils to continue at least predetermined time, and for example 30 seconds by 2 minutes, with sterilised liq.

User interface 11 can comprise remote controller, and is described such as the example of PCT/GB08/002073.

Thiselement board 12 can comprise one or more elements that can be connected to a plurality of electrical outlets, such as the described example of PCT/GB08/002808.

The thick film element plate

Each following embodiment comprises the thickfilm element plate 12 for heating vessel, and this element board comprises thesteel substrate 21 that is roughly circle, is preferably stainless steel.The rated power under the 240V Alternating Current Power Supply of heating element heater in these embodiments is 3.1kW.

Insulatingbarrier 22 is deposited on the substrate 21.The thick-filmheating trace part 23 of high resistivity material is deposited on the insulatingbarrier 22, andcontact 24a, the 24b of low resistivity material be deposited on the insulatingbarrier 22, and electrically contacts with this heating trace part 23.25 usefulness same low resistivity material in coupling part forms, and will heat tracepart 23 and be connected in series.Thebridge 26 that same low resistivity material is made can form overbending to avoid overheated in heating trace part 23.Next, the protection glaze can be deposited at least some parts ofelement board 12, avoids corroding so that electric insulation and/or guard block section to be provided.External contact, such ascontact 24a, 24b, 31,32a and 32b not by glazing, to allow its electrical connection.

Thisthermistor 14 can be installed in the central area of this element board, and central space is regional as shown in drawings, and is connected to contact 31 and 32b.Thistrace 23 is designed to make as far as possible the zone around this element outside more to be used.This central area remains on outside theheating trace 23, to reduce thistrace 23 to the direct heat conduction of thisthermistor 14, the temperature that therefore can follow the trail of more accurately water.

The first embodiment

In this first embodiment,sensor trace 30 is deposited on the insulator 22.Easily, thissensor trace 30 is piled up simultaneously with thisheating trace 23 thereby is roughly coplanar, and forms and theseheating trace 23 parts with layer.Thissensor trace 30 is preferably formed by the resistance trace material identical with thisheating trace 23, and this material is many (2008 year December 3 day are 63 penny every grams than 805 penny every grams) more cheap than high resistivity/TCR material usually.Yet, this material have when being used for temperature sensor relative low-resistivity (such as, 20-200m Ω/square, for example 100m Ω/square), and have relatively low temperature-coefficient of electrical resistance (TCR), cause relatively low signal strength signal intensity.

In order to make the resistance maximization and therefore to make signal (such as voltage signal) the intensity maximization that obtainsautobiography sensor trace 30,sensor trace 30 is designed to grow as much as possible with thin.In addition, overheated for roughly any zone that can sense fully thiselement board 12, thissensor trace 30 is distributed on the major part of thiselement board 12, and therefore is suitable for the dry combustion method and the build-up of limescale that detect stain, tilt to cause.In order to realize these advantages, thissensor trace 30 extends along the gap betweenheating trace parts 23 and himself broken line, so that thissensor trace 30 comprises the part that connects continuously almost parallel with 180 ° narrow curved roughly outside its end points.The bend that is positioned atheating trace part 23 that these end points can be close to.

Sensor contact 32a, 32b are connected to arbitrary end points ofsensor trace 30, to allow thissensor trace 30 to be electrically connected to sensor circuit or to be connected toelectronic controller 10 for detection of the temperature regime of element 12.The implementation regular meeting of this sensor circuit and this electronic controller divides other more description of details below.

The second embodiment

This second embodiment, as shown in Figure 3, the place that is different from the first embodiment be thissensor trace 30 comprise have high resistivity, thesensing part 33 of high TCR material.This resistivity can be typically 1-100 Ω/square scope in, for example 10 Ω/square.This TCR can be typically in the scope of 1500-3000ppm.Theseparts 33 are connected in series by the discrete portions ofsensor trace 30, use theheater trace 23 identical materials among the first embodiment to make; This is connected low resistivity material (typically comprising silver) to connect thissensing part 33 more cheap from makingcontact 24a, 24b, 31,32a and 32b than being used for.In addition, this material that has a PTC can change with temperature signal.

Thissensing part 33 is arranged in such zone, and this zone probably shows high specific temperature rise under dry-fire condition.In addition, in order to detect the dry combustion method of inclination when not considering incline direction, sensingpart 33 distributes around this element.

Thissensing part 33 provides higher signal strength signal intensity, but than the first embodiment all more expensive aspect material and the labor service, because additional material require is for this sensing part 33.The length of thissensing part 33 can be selected to the cost performance that possesses expectation.

Heating vessel with vapor sensor

Fig. 4 shows the kettle with electronic controller, and as the example of a heating vessel, the first embodiment of the present utility model and the second embodiment can be applied to this example.This kettle is to shown in Figure 1 similar; Like is with identical designated, and their description is not in this repetition.Yet, usethermistor 14 to detect to boil in order to replace, shown in the dotted line among Fig. 4, thesteam lead 17 from water surface top delivering vapor to thevapor chamber 18 of theseelement board 12 belows when being provided at liquid andboiling.Vapor sensor 40 is arranged on the downside of theelement board 12 that is arranged invapor chamber 18, and the below has the more description of details.This vapor chamber can provide the volume that holds steam in 12 times side spaces of this element board, and at least in part thisvapor sensor 40 is isolated from other electric members such as electronic controller 10.In this manner, can prevent or alleviate the damage to other electronic components that causes owing to entering of steam.

Fig. 4 shows the center thatvapor sensor 40 is formed onelement board 12, andsteam pipe 17 passes the hole at an edge of element board 12.This set need be positioned at relativelylong vapor chamber 18 below theelement board 12 with delivering vapor to vapor sensor 40.Interchangeable, thissteam pipe 17 passes a hole of contiguous thisvapor sensor 40 ofelement board 12 cores, so that thisvapor chamber 18 takies space still less.Interchangeable, thisvapor sensor 40 can be positioned at any suitable zone ofelement board 12, and advantageously, can be positioned at towards the edge ofelement board 12 to be easy to lead to and be positioned atreservoir steam pipe 17 5 one sides or the outside.

The 3rd embodiment

The 3rd embodiment is different from the first embodiment part and is,vapor sensor 40 usefulness thick film screen printings are formed on the element board.Thisvapor sensor 40 comprises that higher resistance material makes long, thin trace, typically in 1-100 Ω/square range, for example 10 Ω/square.TCR can be typically in the scope of 1500-3000ppm.This trace arrangement become tortuous or wriggle so that can be compressed into a little area.Thisvapor sensor 40 is electrically connected betweencontact 31 and 32b.When liquid boiled, steam for example by detecting the change of resistance or electric capacity, was used for sudden change or the gradual change of sensing local humidity by on thesteam pipe 17 guiding vapor sensors 40.Change in order to tackle this, thiselectronic controller 10 reduces or turn-offs the thermoelectric power that adds in the heating vessel.

The embodiment of thevapor sensor 40 of a replacement illustrates in accompanying drawing 7 in more detail.Except comprising continuous trace, thisvapor sensor 40 also comprises a pair of barium titanate (BaTiO that is formed on₃) thesilver electrode 40a that crosses one another, 40b on the thick film layers 42, this thick film layers 42 is deposited on the insulating barrier 22.Electric capacity betweenelectrode 40a, the 40b depends on humidity or the moisture level betweenelectrode 40a, the 40b.

Preferably, thisvapor sensor 40 is not by glazing, so that can be more responsive to humidity.The selection of the material of thisvapor sensor 40 is for preventing that the silver migration is extremely important.For example, this silver electrode can comprise high-grade palladium.

Preferably,vapor sensor 40 becomes dry after sensing the situation of boiling.The heating trace that separates can be provided fordry steam sensor 40, and perhapsvapor sensor 40 can be by the heated drying of heat on every side or element conduction.Replacedly, little electric current can be set up byvapor sensor 40 for detection of humidity until the situation of boiling be detected, large electric current detect boil after by vapor sensor, so that can drysteam sensor 40.

Before vapor sensor was dried, whether the liquid in can't the tracer liquid heating container boiled.Therefore, if heating current after boiling by manual connection, this heating element heater can be switched on the scheduled time again, such as 15 seconds, does not then consider to boil whether occur with regard to cut-off current.

The 4th embodiment

The 4th embodiment as shown in Figure 6, is with the 3rd embodiment difference: 40 pairs of responsive to temperatures of vapor sensor rather than to humidity sensitive; For example, the resistivity ofvapor sensor 40 can be to responsive to temperature.Steam is because the sudden change of the temperature that senses and collision in the present embodiment thevapor sensor 40, and for this is reacted,electronic controller 10 reduces or turn-offs the thermoelectric power that adds in heating vessel.This vapor sensor can be calibrated, so that along with the variation of the temperature of steam collision can be detected reliably.

Sensor circuit

As shown in Figure 8,sensor trace 30 can be arranged to theresistance 16 of cross-over connection low-voltage V and connect, and the variation of the voltage V1 atresistance 16 two ends can be by the indication ofelectronic controller 10 detections for the variation of theresistance R 2 of sensor trace 30.When reaching resistance threshold or resistance change rate when having reached the resistance ofsensor trace 30, heating current can be disconnected or reduce.The susceptibility of sensor circuit can be by improving with amplifier.

Digital translation

In order to be input toelectronic controller 10, voltage V1 is typically converted to digital value by analog-digital converter (ADC).Shown in the example of Fig. 9, if this causes signal with respect to the input range of this analog-digital converter (ADC) hour, the digital translation measured value may have bad resolution ratio.

Resolution ratio can strengthen by the equalization digital measured value.For example, Figure 10 illustrates the moving average that can adopt 10 measured values as the result of input value.Although the transition between the digital measured value is more level and smooth than the result among Fig. 9, this measured value is altitude figure still.

The resolution ratio of measured value can further be improved to measured analog signal by " vibration (the dither) " signal in increase cycle before input ADC, and as shown in figure 11, the moving average of 10 measured values of employing ADC is as measured value.The amplitude of this dither signal is preferably the resolution ratio that equals at least ADC, more preferably is large twice, so that measure analog signals transition between at least two ADC digital output values, even measured analog signal is static.Thus, " vibration (dithered) " average signal measured value has than Fig. 9 and higher resolution ratio shown in Figure 10.

The heating liquid distributor

The below will describe a kind of heating liquid distributor, and its feature can comprise the improvement of the disclosed heating liquid distributor of WO-A-07/096630; The content that part is described is included as background technology below.

First example shown in Figure 12 and 13, comprising: electric heating spray bottle hasreservoir 110,nozzle 112 and power supply base 113.Nozzle 112 is connected to trigger 114, thepump machanism 116 of manual activation and manages 118.Trigger 114 actuated pump mechanisms 116.Pump machanism 116 comprises the piston 120 that is installed in the cylinder 122.Spring 124 is positioned at described cylinder 122 equally.When the user stirredtrigger 114, piston 120 was pushed in the cylinder 122, so Compress Spring 124.Whentrigger 114 was released, piston was pushed back cylinder 122 by the action of spring.

When piston was pushed into cylinder, liquid was extruded from pump machanism 116.Whentrigger 114 was released, piston 120 moved out (still being maintained at the circular cylindrical shell simultaneously) from cylinder 122, therefore so that fluid body passes throughpipe 118 fromreservoir 110 extractions.

Pump machanism 116 more comprises two one-way cocks 124,126---one between cylinder 122 andreservoir 110, another is between cylinder 122 and nozzle 112.This has guaranteed to be forced outnozzle 112 from the liquid thatreservoir 110 is extracted out, and can not flow back in thereservoir 110.

Nozzle 112 is rotatable, so that the user can concentrate injection and disperse selection between the injection.The known spray bottle that is present in of such nozzle is not here in deep description.

Heating element heater such as thickfilm element plate 12, with the self-operatedthermostatic controller 128 of the power supply of attenuation elements when reachingpredetermined temperature 12, is disposed in the bottom of reservoir 110.For example, this predetermined temperature can be 60 ℃, is suitable for the temperature of windshield defrosting, or is used for for example using the clean operation of the cleaning agent of heating to use.More usually, this preset temperature can be in 40 ℃-70 ℃ scope.

Heating element heater 12 can be included in and reach the warm keeping element that is energized again behind the predetermined temperature so that can be with liquid insulating at one for the low temperature of this predetermined temperature.Interchangeable, self-operatedthermostatic controller 128 can be connectedheating element heater 12 when fluid temperature is lower than a predetermined lower temperature.

Also arrange there one and crossheat controller 130, for the protection of overheated when self-operatedthermostatic controller 128 lost efficacy of heating element heater 12.When an overtemperature apparently higher than predetermined temperature was detected, this crossesheat controller 130 can turn-off the power supply that leads to heating element heater 12.This overtemperature can between 70 ℃-90 ℃, preferably be preferably 80 ℃.

A kind of temperature controller that is suitable for the present embodiment is described in GB-A-0329636, as shown in Figure 15.This controller comprises the first and second thermal actuators 128,130.Described thermal actuator 128,130 comprises can operate the bi-metal plate that is out of shape suddenly be used to standing, when each thermal actuator 128,130 stands to be out of shape suddenly, its configuration meeting prevents that thus the liquid in thereservoir 110 is heated above distinct temperature so thatelement 12 is reduced power supply.In present example, this firstthermal actuator 128 is by the unexpected distortion that typically is configured to stand under predetermined temperature self, such as 60 ℃.This secondthermal actuator 130 is configured to move under overtemperature, for example 80 ℃.In other embodiment, this first and second actuator can be configured to two fully independently members that are installed on diverse location in this device.

Power supply base 113 be operated to provide power supply toheating element heater 12 with the liquid in theheated reservoir 110 to the temperature that is lower than boiling point.In one embodiment,base 113 comprises a for example electric connector of 360 ° of type described in the EP-A-0922426.This is configured in the situation of heating spray bottle that the user can use the weight that needn't carrypower supply base 113 has special advantage.

In the example of a replacement, self-operatedthermostatic controller 128 can be included in thepower supply base 113, and can be connected to the temperature sensor that is positioned among the reservoir part.

Steam vent 140 is arranged in the sidewall ofreservoir 110, can significantly not increase along with the rising of the temperature of describedreservoir 110 contents with the air pressure that guarantees 110 li ofreservoirs.Steam vent 140 can be any suitable configuration, such as being hole inreservoir 110 sidewalls, or is the valve as slit valve or spring contact formula pressure relief valve.

The wall ofreservoir 110 can comprisethermal insulation part 144, so that when liquid reached preferred temperature, the user can not have to holdreservoir 110 under uncomfortable state.This thermal insulation part 44 only needs to be provided for to extend on the part of the sidewall that is used to holding.Replacedly, although this may increase the weight of heating spray bottle, whole wall can heat insulation.

Indicating equipment such as lamp 142 (for example LED) can be arranged for to indicate when self-operated thermostatic controller is started, and the temperature that when is contained in the liquid in thereservoir 110 is heated to the limit of predetermined temperature.

Further, preferred indicatingequipment 142 is arranged inpower supply base 113, allows the storage component of device can be easy to be rinsed such as being configured to, for example, and dish-washing machine.Corresponding flushable connector such as described in the GB2387523 that, preferably surpasses the AN connector of land used typical electrical kettle.

This example has advantages of provides more effective cleaning when using cleaning agent, and in replacing use, more safer such as the boiling kettle that when for the car wind shield de-icing, uses than example.This than must be in kettle heating water then water is imported in the spray bottle more facility and safety.This same electric energy that uses still less, and need not use the used chemical agent of current conventional nozzle ice removal.Another application is oil spout or fat, such as soybean oil, in culinary art or when being used for the seasoning of puffed rice for example, can be used and replace to butter.

Second example comprises the flavoring distributor of heating as shown in figure 14.In the present embodiment, liquid distributes bypipe 112 rather than nozzle.Flavoring or flavouring can be heated inreservoir 110 until reach predetermined temperature, and then flavoring or flavouring can use pump 116 to be assigned with under this temperature.Flavoring or flavouring can use above-mentioned muff heater insulation.Present example can be used in warm chocolate flavouring especially.

In each embodiment, if pump or injection be by device inner such as the power drives of rechargeable battery or electric capacity with favourable, so that when device during with the disconnection of radio source base, pump or injection can be operated.

In an alternative embodiment,power supply base 113 comprises induction heater, andheating plate 12 when being included inreservoir 110 and being installed inpower source base 113 by the plate of this induction heater eddy-current heating.

The multi-part device

The main body that is disclosed in the liquid heating among the WO-A-07/096630 comprises two separable parts:heated reservoir 110 and the distribution member that comprises nozzle 112.This main body can be connected topower supply base 113.

In an embodiment of the present utility model, the main body of heating liquid main distributor comprises at least three separable parts: distribution portion, heating part and the mid portion that can connect between this heating part and this distribution portion.This heating part comprisesheating element heater 12 and optional electric member, such as heat controller and/or wireless connector, and can maybe cannot comprise reservoir 110.Reservoir 110 can be limited by one or more these parts, can for example extend to mid portion from heating part.The different size of mid portion can be used to allow the volume-variation of reservoir.Low profile device can comprise that heating part does not comprise the heating part of reservoir, and low profile mid portion.

In an alternative embodiment, the order of connection of each several part can be different; For example, heating part can be connected to distribution portion, and the storage part can be connected to distribution portion or heating part; These all parts can link together by common single connector.All are necessary is that heater block is before distributing or the liquid in the heating reservoir.

Specific embodiment relates to the improvement of the heating spray bottle in Figure 12 and 13 shown in Figure 16-18.As shown in figure 13,pipe 118 can be set such that liquid is from the bottom extraction of reservoir 110.Pipe 118 can comprise that filter enters distributor gear to preventparticle.Pipe 118 can comprise check valve (non-return valve).

In the embodiment of Figure 16,nozzle 112 is arranged on the distribution portion, and mid portion comprises heatinsulation handle portion 144, and heating part comprises reservoir 110.In the embodiment of Figure 17, nozzle 122 is arranged on the distribution portion, and mid portion comprises heatinsulation handle portion 144 andreservoir 110, and heating part comprisesheating element heater 12; In other words,heating element heater 12 is formed for the separable base plate ofreservoir 110.

The embodiment of Figure 18 comprises four separable parts: comprise nozzle 122 distribution portion, comprise heatinsulation handle portion 144 the first mid portion, comprise the second mid portion ofreservoir 110 and comprise the heating part ofheating element heater 12.

Different parts can connect individually by any suitable coupling such as screw or lift sub pin device.Wherein, need rotation to arrange between different piece, this can pass through the coupling transfiguration easily or strengthen; For example, the bayonet lock coupling allows only to connect a direction of rotation.

An advantage that device is divided at least three separating parts is easier to be cleaned for these parts.For example, the opening of at least one part can be enough greatly to being convenient to internal washing.

Heating part can be cleaned in dish-washing machine, for example uses the equipment that is used for performance dish-washing machine machine washing of any above-mentioned discussion.Interchangeable, distribution portion and/or mid portion can be machine-washed by dish-washing machine, but heating part can by wiped clean, enter in the electric component to avoid water; This is particularly suitable for the embodiment that heating part comprises the separable base plate ofreservoir 110, because base plate is convenient to wiped clean.

If be difficult to very much cleaning, mid portion and/or distribution portion can be disposable.In this manner, at least part of (such as the heating part) of this device can be repeated to utilize.

Interchangeable, any one of separating member all can be equipped with disposable lining, packing ring or the liner that comprises for the material that distributes, so that lining or packing ring can be dropped under the situation of the member that does not need to clean this separation.Disposable lining, packing ring or liner can be by the pre-filled liquid that is assigned with, perhaps as the consumer goods independently with by user's filling liquid.

Another advantage is that each part can be configured so that their function is optimum; For example, this mid portion can by have thermal insulation and or/material that be fit to grip consists of, heating part can be made of thermal resistance material simultaneously.This heating part also can be made by heat insulator, to reduce thermal losses.This device can be suitable for desk, is used for distributing heating liquid, therefore can have insulator foot so that face damages desk.

This heating part is connected in a plurality of different pieces any one interchangeably, such as mid portion and/or distribution portion.In the embodiment shown in Figure 19, distribution portion comprises distributingpipe 112 and pump 116 as in the example of Figure 15, can be connected to thereservoir 110 of the embodiment of Figure 16.This mid portion can be used as an adapter and with permission the standard distribution portion is connected to analgesic part, or vice versa.

Interchangeable distribution portion can be used, and that can be exchanged is connected to mid portion and/or heating part.In one embodiment, Figure 20 shows distribution portion and thenozzle 112 that has be used to thepump 116 that makesreservoir 110 superchargings, is connected toreservoir 110 by flexible conduit 132.This distribution portion can comprise thatreservoir 110 and removable being connected to have the heating part of heating element heater 12.Figure 21 shows the distortion with electric driving pump 116.Thispump 116 can by the power drives such as battery, can be used this pump when device disconnects with the radio source base.

This mid portion or distribution portion comprise interchangeable reservoir, so that different liquid can be assigned with in turn.For example,reservoir 110 comprises the first liquid that can separate with heating part and is replaced by the reservoir that comprises by second liquid.This for example is being applied in dissimilar liquid, and during such as the paint of different colours or coating, different colours or sugar-coat concentration, different cleaning agent or different sesame oil, it is special to have advantages of, can avoid staining between the different liquid.Thisreservoir 110 can be in the situation that can not spill contents and remove from heating part.One or more supporters or housing can be provided for and store tradable part, so that liquid when removing other parts, can be maintained in those parts.But each comprises this supporter or housing for preventing the contained leak of liquid of each several part or dry lid.

Reservoir 110 can be filled in the position of upset.In the embodiment of Figure 22,reservoir 110 has and relies on from the downwardinner passage 134 ofreservoir 110 open tops, so thatreservoir 110 can be filled under upturned position there not being contents to run out of under the open-topped situation.Reservoir 110 can comprise the number of altitude, so that the volume of the liquid that comprises when upturned position can be identified.

When reservoir was made of heating part and mid portion,reservoir 110 can be filled by combined heated part and mid portion, fillsreservoir 110, then connects upper distribution portion.

When liquid comprised two parts mixture, a part of mixture can be placed on heating part, and mid portion can be connected to heating part.Another part mixture is injected into mid portion to the height of expectation.The ratio that allows the each several part of mixture is be scheduled to accurate.

Heated liquid or solid can be supplied to the formation mid portion and be assembled into before use in prepackage (pre-packed) container of heating part; This assembly can pierce through this container or other modes cause it to open, so that contents can be heated element 115 heating.

Stir/stir

The heating liquid distributor can comprise the equipment of contents inagitator 136 or other mixingreservoirs 110, for example for avoiding separating or promoting the emulsification of contents.As shown in figure 23,agitator 136 can be by being mechanically attached to motor, or by magnetic coupling and driven.This magnetic coupling can be by this device top or base section setting or alternately by the periphery setting of this device, for example be arranged in this device one or more solenoids on every side by use, such as the description of following more details.This motor can be by the power drives in the device, such as rechargeable battery or electric capacity, so that this motor can be operated when device disconnects with the radio source base.This motor andagitator 136 can be used as a black box, for example, are positioned at this device cap, by the terminal use removable be installed on the device or among.Can be alternatively, motor can be used as the parts that separate with agitator and is provided, one all both can by the terminal use removable be installed on the device or among

In another embodiment, be included in the removable installing component more than one electricdriving function.Lid 221 as shown in figure 35 is dotted line shows, in the situation that be electrically connected by separableelectrical connection equipment 240 realizations, removable be connected to and disconnect from reservoir 110.Thisassembly 221 comprises:electric pump 116, be used for actuator or thetrigger 114 and the conduit 118,112 that is connected and is connected self-pumping 116 ofpump 116, distribute with themotor 241 of being arranged to driveagitator 136 allowing.Thisassembly 221 comprises equally: thelid 220 of one, with sealingstorage 110; Withhandle component 222, excite constantly trigger 114 with the supporting cover device.Should be used for the heater ofelement board 12 and be the printedelement 205 of the bottom of thisreservoir 110 of formation.Controller (not shown) and electric connector (not shown) are positioned among thebottom member 6, and the electric lead (not shown) is connected toelectrical connection equipment 240 by thelid 230 that is positioned on thereservoir 110 frombottom member 6.

In another embodiment, for example additional the or interchangeable electric function of ventilation unit or vibrator can be comprised among theremovable cap assemblies 221.

Interchangeable, as shown in figure 24,agitator 136 can for example be passed throughhandle 140 and manual drives.Thisagitator 136 can be connected to the manual activation ofpump 116, so that contents can be stirred and distribution by individual part.

Agitator 136 can drive from bottom, top or the side of device, and distribution portion can arrange accordingly.For example, distribution portion can be installed inreservoir 110 the side or below.

Agitator 136 can in heart be installed in 110 li of reservoirs or with the misalignment of reservoir 110.Agitator 136 can adopt any type of distortion such as the inwall ofrotatable reservoir 110 or wall section, randomly has one or more projections inwardly, such as fin, to promote the mixing of contents.Replace the contents in the agitated reservoir, these contents can for example enter in thereservoir 110 by pipe suction air and inflate, or for example by cause reservoir partly or entirely or be arranged in the part vibration of reservoir or vibration stir with.

Dissolving/liquefaction

The material that is assigned with at room temperature can for viscosity or solid or gel, but after beingheated element 12 heating, become low-viscosity, liquefaction or dissolving, can easierly distributing; Example comprises butter, culinary art fat, glue or Silicone Sealants.As shown in figure 25, what contents were set to be fit to be positioned at standard size among theholder 110 and/or shape heavily fills outthing 142, such as the Silicone Sealants of standard pipe, enters and contacts withheating element heater 12, under this kind situation, standard silicon rifle type distributor can be used as distribution portion.Replacedly, thisheavy thing 142 of filling out can comprise housing, and formation can be connected to the mid portion of heating part and distribution portion, and this housing can abandon after use.

This device can comprise for the equipment that guarantees that pump only can just be started after this material becomes the liquid that will be assigned with fully, such as for detection of or infer that this material has been heated to self-operated thermostatic controller or the timer of correct temperature.Wherein, this device comprisesagitator 136, and this device can comprise the equipment that is stirred the viscosity ofdevice 136 actuatings for detection of this material, suppresses to pump up moving until this viscosity is enough low to distributing.This control appliance can comprise sensor, such as the motor protector that detects the beater motor excess load.In this case, motor protector can turn-off the motor of excess load, and restarts motor when motor protector is restarted himself, until the operation that motor can continue; Then pump also can be started.This pump can automatically start, or this pump can be by manual starting after enabling as the reaction after being enabled.

In the embodiment of a replacement of the present utility model, the gel of liquefaction when the material that is assigned with is stirring or stirring.In this case, this device does not need heater, but substitute comprise aforesaid agitator or agitator.

Thermal mass (thermal mass)

In another embodiment, shown in Figure 26-28,reservoir 110 can comprise for thefirst chamber 110a that holds the liquid that isheated element 12 heating with for holding by thesecond chamber 110b of the liquid that is used for distribution of the heating liquid of the first chamber 110a.In specific embodiment, thissecond chamber 110b is contained among the 110a of this first chamber at least in part in the mode of bain-marie.Thisfirst chamber 110a can hold water, and thissecond chamber 110b can hold to crossing heat sensitive liquid, such as Yolk milk oleic acid thick chilli sauce, butter, syrup or molten chocolate.

The liquid in this second chamber ofheating heating 110b, come the steam (steam and/or vapour) of the water that heats among comfortable thefirst chamber 110a to can be used for stirring, inflate or the liquid in thesecond chamber 110b of foaming, for example milk.

Figure 36 shows a kind of setting, and wherein water 250 is injected into the first chamber 110a by hole 252, then 220 is sealed by this.To enter chamber 110b from the top by heated liquid 251 in the second chamber 110b, and depend on distribution method, chamber 110b can possess lid or not possess lid.Passage 260 is communicated with this first and second chamber.The top of this passage preferably is higher than the top of hole 252 and chamber 110b, so that keep isolation from the liquid in two chambeies.Liquid 250 is by heating element heater 205 heating such as printing (thick film) heating element heater, the steam of the boiling that and then produces at the first reservoir 110a utilizes vapor pressure to transfer in the liquid 251 by managing 260, and consequently liquid 251 is heated and is inflated (or steaming) simultaneously.Pipe 260 can comprise venturi tube or dispensing head so that enter pressure, direction and the total amount of the steam of this second chamber 110b and can change according to the liquid that is included among the second chamber 110b.As seen, for example this device can be used same way as foaming milk based on the milk foam maker of traditional Cappuccino coffee making device outside.If the second reservoir 110b is covered, then must possess the equipment that prevents from passing through because of steam pressure the overvoltage of liquid 251 generations.

Liquid 251 can distribute by perfusion or by nozzle or pump.

In another embodiment, air both also can pump into by managing 260 in the pumpingliquid 251 separately, so that gas and steam can mix with the enhanced foaming process.

Figure 37 shows the embodiment of a replacement, utilizes steam toliquid 251 heating or the ventilation of heating in the second chamber 110b.In the present embodiment, it is inboard that thesecond chamber 110b is positioned at thefirst chamber 110a removedly, hasseal 270 between two chambeies.

Liquid 250 isheated element 205 heating, and the pressure that is produced by steam is so that steam enters thesecond liquid 251 of thesecond chamber 110b by one ormore check valves 260 that are arranged in thesecond chamber 110b bottom.In case this pressure decay,valve 260 are got back to the closed position and are entered thefirst chamber 110a to prevent liquid 251.

Each embodiment among Figure 36 and 37 can haveagitator 136 equally.

Shown in accompanying drawing 28 and 37, thesecond chamber 110b is in order to clean or the reason of other following discussion can remove from the first chamber 110a.Thesecond chamber 110b can be separately connected to distribution portion, and can remove from thefirst chamber 110a in distributes.By this way, the user need to not lift thefirst chamber 110a and contents thereof in distributes, just thesecond chamber 110b can be turned back among thefirst chamber 110a with distribution portion, to reheat the contents among the 110b of this second chamber.In this case, heating part need not provide wireless connector, because heating part is not lifted in distributes.

Thefirst chamber 110a does not need to comprise liquid, but can then comprise the solid thermal material that is heated byheater 12, then heat is discharged in the dispensable liquid.Replace hot material, a kind of material can be used to show reversible exothermic reaction, and this reversible exothermic reaction absorbs heat from heater 34, and heat is discharged in the dispensable liquid.

Pressure balance in the reservoir

Steam vent 140 inreservoir 110 can be by ventilation film sealing, when being heated with the gas inreservoir 110 so that pressure balance.This film can be by such as Gore-tex^TMThe fluoropolymer fabric make.Interchangeable, this film can be by making such as the silicones elastomeric material with one or more apertures (such as hole or crosscut hole).Under normal conditions, elastic membrane is effective waterproof, but open when the expansion of pressure in the hole.

Interchangeable,reservoir 110 can have variable volume, such as using piston device or expansion chamber so that container can be heated along with the gas in thereservoir 110 and increase.

More feature

Dispenser portion for example can be configured to distribute the predetermined amount of fluid that adapts to the unique user action by arranging of pump 116.Total amount or the allotment ratio of the liquid that is distributed by unique user action can be adjusted by the user.

This distribution portion can comprise interlocking device, unless so that liquid surpasses the first predetermined temperature and/or is lower than the second predetermined temperature can not be assigned with.This device can comprise that whether the temperature that is used to indicate liquid containing material surpasses the first predetermined temperature and/or be lower than the temperature indicator of the second predetermined temperature.This temperature indicator can be thermochromism, electronics, electric or machinery.

This device can comprise informing user's liquid is arranged in device equipment how long, for example is used for the suggestion composition and whether needs to mix again or no longer be fit to use.This equipment can comprise time movement, counter or indicator, such as having the chemicals indicator that changes the slow reaction of color or other cognizable attributes through certain hour.

This distribution portion can comprise the ratchet type distributor, so that liquid is assigned with under by progressive actuating at distributor, then this distributor is reset.

This device can comprise that the equipment for ZhaoMing Center's part operates to improve; For example, nozzle or manage 112 periphery or front area can be illuminated.Reservoir 110 can be by interior lighting, and/or can have transparent or semitransparent wall or wall part, so that contents can be easy to be seen, for example to judge height and the situation ofcontents.Reservoir 110 can have the visual number of altitude, so that the volume of current contents inreservoir 110 can be easy to be determined by the user.Under the situation of wireless device, the equipment that is used for illumination can be by the power drives that is included in device body, so that illumination still can be provided when apparatus main body and the disconnection of wireless base.This power supply can be included in rechargeable battery or the electric capacity that charges when apparatus main body is connected to power supply base.Interchangeable, power supply can comprise non-rechargeable battery.

This device can be the wireless device that is connected to the radio source base or can have nonvolatil connecting power line.This wireless base can be 360 ° of wireless bases.

Reservoir 110 can be made by stainless steel, plastics, glass or pottery.The limit of reservoir can be parallel, recessed or projection.The level cross-sectionn ofreservoir 110 can be rectangle or oval-shaped to be easy to storage, perhaps can be circular cross section.This reservoir can be for double-walled, and two walls are all made by a kind of material or two kinds of different materials.The double-walled assembly can have heat insulation or this material can select to have specific properties.This heat insulation can comprise between vacuum or the wall having heat insulator.

Heating element heater can be the floor element plate, immerse plate or for being combined inreservoir 110 walls or being formed on the element of storing on the wall.Heating element heater can be resistance heater, self-adjusting ptc heater, trace heater, Ohmic heating device, induction heater, radiant heater or ultrasonic wave heater.The floor element plate can have thick film, die casting or ferrule element.This thick film element can comprise overtemperature protection, such as the disclosed E-Fast of WO-A-2006083162^TMOr such as the disclosed parallel E-Fast of WO-A-2008/150172.This element board can be laser-welded on the bottom ofreservoir 110, and for example WO-A-2007/136256 is disclosed.

In an alternative embodiment, what heater can be the liquid of being arranged to heat its distribution flows through type (flow-through) heater, rather than before distributing the contents in the heated reservoir.

The heating liquid distributor

The application of the heating liquid distributor among the utility model embodiment comprises: distribute the spices of heating, such as perfume or air freshener; The detergent solution that is used for improving cleaning that distributes heating is such as being used for pot and/or barbecue rack; The pesticide that is used for the efficient allocation heating; Be distributed in room temperature and be solid or viscosity but after heating assignable liquid; Before distribution, need two or more components together mixed or the reaction application; The glue or the sealant that distribute heating are such as Silicone Sealants; Distribute paint; The liquid that distributes the composition with orientation separation; Distribution needs to heat, stir or stirs to produce the liquid of the reaction that need to reach desired effects; Foaming milk for example, dispense liquid footwear polishing agent; Distribute waterproofing agent; Distribute automobile polishing wax or analog; Distribute the clean liquid that for example is used for alloy wheel; Distribute the culinary art oil of heating to improve coverage (coverage); Divide the warm water that is used in the hair style device; With the massage or the spices massage oil that distribute heating.

The heating of the liquid of milk and other like attributes and control program

Heating and/or foaming milk have special problem, although these problems also may occur in other have the liquid of like attribute.

The problem that need to be overcome has:

● prevent from being heated liquid during heating or bonding reservoir afterwards.

● the position of the agitator in the liquid container and speed.

● the position of the self-operated thermostatic controller in the device and the setting of temperature.

● the hot material of heating element heater.

● the inhomogeneities of fluid temperature.

● the ability of the self-operated thermostatic controller that resets, so that device can be reused after device injects immediately at milk.

● when sediment was deposited on the element, how recognition device need to be cleaned thoroughly.

Prevent that during heating or afterwards the milk remaining thing from bonding to reservoir

This programme is all very important for the operation of the heating container that any a part of liquid solidifies on uniform temperature.The device that needs to be used for heating milk preferably cannot not comprise stickingly (non-stick) coating; Yet when if the temperature of the device that contacts with milk reaches a certain temperature, this coating can not prevent that sediment from staying on the element.The inventor determines, is lower than 100 ℃ if the temperature of the part that this device contacts with milk can remain on, milk seldom or nothing solidify generation; When the temperature of this part of contacting with milk of device during 150 ℃ of left and right sides, sedimentary accumulation generation; When the temperature of this device and milk contact portion reached 200 ℃, sedimentary accumulation occured on a large scale.

In a cleaning device, during heat treated, the milk in this device shows as heat and sinks, and can effectively keep the major part of wet sides of heating element heater about 100 ℃, and heat is even in whole surface distributed if this heating element heater is configured to.Be known that the really uniform distribution of heat of printed element, so sediment seldom occurs in this thermal source type.Yet the device on a lot of markets comprises the sleeve heating element heater, and wherein heat concentrates on the sleeve immediately, these heating element heaters so that sediment more easily occur.

In case precipitation begins to form, will show as and slow down the heat conduction and in each heat treated subsequently, effectively increase local temperature.Contiguous sedimentary temperature increases to the temperature spot that sediment burns very rapidly, and extremely difficult removing.

The following examples are devoted to limit this temperature, and therefore any sedimentary accumulation can for example be used wet cloth and easily remove.

Except component type, other factor, the distribution of heat and the time of during heating pouring out afterwards milk from heating chamber in the milk temperature that turn-offs such as heater, the power of heating element heater, the heating chamber, each can be to sedimentary heap effect.

Prevent the scheme of burning, for example reduce the temperature that device turn-offs, may reduce the user for the satisfaction of device, so each scheme must the bascule reduction of performance.

The ferrule element substrate

Being known that increases high conductivity in the one or both sides of stainless steel parts plate material sheet can the homogeneous heating element heat distribution; Yet this scheme is very expensive, because it needs one not to be the additional step of the generally acknowledged technology of the art.

The following examples have proposed to prevent the even scheme of wet sides temperature distributing disproportionation of element board (preferably comprising stainless steel) during heating operation.

Figure 30 a shows the cross section for the METAL HEATING PROCESS chamber 110 of milk foaming.In this case, mechanical ferrule element 202 is attached on the aluminium substrate 201, and aluminium substrate 201 directly is attached to again on the bottom 12 of wire chamber 110, and therefore bottom 12 is as the heating element heater plate.The even thickness of normal expectation aluminium substrate 201, but in the present embodiment, substrate 201 has been increased thickness on element sleeve 202, so this zone has more materials with the heat that dissipates, this causes the temperature of the element board 12 on this zone to reduce immediately.Figure 30 b show with Figure 30 a in the similar configuration of heating chamber 110, yet space or recess 203 are provided in the substrate 201 in this embodiment, between element sleeve 202 and element board 12.This space 203 has stopped from element sleeve 202 to element board the thermally conductive pathways on 12.This space 203 can be included in the circular passage of substrate 201 upper surfaces, spreads all at least this sleeve 202.This annular channel can comprise complete ring or part ring (namely extend and be less than 360 °).This space 203 can be had the Material Filling of optional thermal conductivity, and this thermally conductive materials is selected such that the uniform heat distribution through element board.This material can be formed the ring-type piece to place this annular channel at assembly process.This material can be the low heat conductivity metal, such as stainless steel.This material can be integrated in the outer surface of heating chamber 110, for example prior to substrate 201 on heating chamber 110 installation and be welded on the heating chamber 110.This setting can be convenient to substrate 201 and be welded on the heating chamber 110.In the alternative embodiment shown in Figure 30 c, substrate 201 from element sleeve 202 radially inwardly and/or increase and decrease thickness outwardly; This set is still propagated heat on element board 12 widely, but can reduce height among Figure 30 a.

Figure 31 a shows with Figure 30 a and similarly configures, yet in the present embodiment,substrate 201 has at the bottom of radially thewall liner 201 inside or the cores thinner than exterior section, and the heat distribution of therefore passingelement board 12 is more even.The thickness that in other words, at least three kinds ofdifferent substrates 201 are arranged: the thick part in the upper outer radial position ofsleeve 202 installation places; Mid portion radially with interior thickness; With interior section thin, radially.The gradient of thickness can be for continuous rather than step, shown in Figure 30 and 31.This configuration has more the advantage of the thermal mass that reduces substrate, can help to reduce the overheated ofelement 12 when milk is poured out device.

Figure 32 a and 32b and Figure 30 a are similar, yetsubstrate 201 extends beyond the edge ofheating chamber 110 peripheries in these embodiments.In the embodiment of Figure 32 a,substrate 201 with the same plane ofsubstrate 201 interior sections in extending outwardly radially.In the embodiment of Figure 32 b, the substrate internally plane of part extends out, towardsheating chamber 110, and around the outer surface of the sidewall inchamber 110 extend and with its thermo-contact.

In any embodiment, the mass action of the increase ofsubstrate 201 extended exterior sections is for reducing the mean temperature ofcomponent substrate 201, and in the embodiment of Figure 32 b, the formation ofsubstrate 201 act as the thermo-contact between 201 and theheating chamber 110 that increases layer.

The embodiment of Figure 32 a and 32b is shown as thesubstrate 201 with uniform thickness, but Figure 30 is a, the variable thickness shown in 30b or the 31a.

As above describe in detail, the reduction in propensity that milk burns at element board between the common operating period, because milk act as heat sinking (heat sink); Yet, have no progeny in the self-operated thermostatic controller pass, when the milk of foaming was poured out immediately from this device, this tendency rose immediately.In this case, because the major part of milk is removed, the residual heat of element can rise to the temperature ofwet sides 200 ℃, and the residue of milk can be burnt immediately under this temperature.

The additional mass thatelement board 12 peripheries among these embodiment increase has increased the heat zone fromsubstrate 201 tops, when milk is poured out, can dissipate and effective temperature that reduces these regional overshoots.

Figure 34 a, 34b and 34c show has the embodiment that replaces the element ferrule configuration, and wherein heating load is propagated the surface of crossing heating plate, has therefore weakened potential focus.

Figure 34 a shows twins'ferrule element 202 and is combined into two concentricC shape sleeves 202 and is installed on thesubstrate 201.

Figure 34 b shows twosleeves 202 that are installed on the substrate 201.Outer sleeve is C shape, and inner sleeve is wound into for crossing the further shape (such as star) of propagation thermic load ofsubstrate 201.

Benefit among the embodiment among Figure 34 a and the 34b comprises following list one or more:

1, to cross substrate more in heat propagation.

2, power density the and therefore running temperature of two sleeves can be lower than single C shaped element part.

3, switch can be arranged so that in theelement sleeve 202 one is turned off because milk reaches temperature required, therefore closes the still less overshoot (overshoot) of having no progeny at self-operatedthermostatic controller 128.

Figure 34 c shows single coiling (such as star)ferrule element 202 and is installed on the substrate 201.This shape can be propagated more uniformly heat load and spread all oversubstrate 201, and the length that increases can reduce the power density of any point that provides.

The location of automatic temperature control device

The temperature of automatic temperature control device is selected two aspects that mainly contain that will consider: final temperature and the temperature of reforming.

Ideally, this self-operated thermostatic controller should stop at that point that milk reach desired temperature, and how cool milk add to be used in the heating chamber follow-up during the time reform.

Usually the minimum acceptable milk temperature of feeling is 60 ℃, usually self-operated thermostatic controller stop and reform between the rarest 10 ℃ difference.Lower difference is possible, but these variations have increased the pressure of bimetal blade and shortened the useful life of member, perhaps need more expensive member.

Because milk foam maker exists the complicated machinery of many known specifications and characteristics that make self-operated thermostatic controller and the attribute of physics, for example:

A) high-quality machinery ferrule element store heat during heating, and after element disconnects power supply the dissipation heat to milk.

B) temperature of milk and be installed in the time delay of the heat between the temperature of self-operated thermostatic controller of dried side.

C) from the impact of heat on self-operated thermostatic controller of the conduction of heating element heater.

Only act on the temperature of milk if will turn-off the self-operated thermostatic controller of this device, self-operated thermostatic controller need to be oriented to the impact away from component substrate so, and considers the position of self-operated thermostatic controller and the temperature delay between the milk actual temperature; Same permission total amount of heat is closed to have no progeny at device and is dissipated.Affect c) can alleviate by insubstrate 201, cutting out or form a hole and self-operated thermostatic controller being directly installed on element board 12.Compensating by some number of degrees of temperature that all reduce this setting under each situation affects a) and b), but reset temperature and the unacceptable point of thing followed user cool time to one can be reduced significantly like this.

Interchangeable reaching preferably, the termination temperature of self-operated thermostatic controller should be higher than the actual temperature of milk, so this device can be cooled to the temperature of reforming more fast to guarantee that this device fast starting is for follow-up use.If self-operated thermostatic controller is during heating obeyed additional heating source, it is in conjunction with the impact of the heat sinking effect of milk, and in conjunction with a given reliable switch time, this can be done.

The applicant makes self-operated thermostatic controller, and this self-operated thermostatic controller combines the function of some the form temperature sensing that uses conducting self-heating, for example, and in heat lag even the hot-water heating system greater than the plastics of metal device; Yet the manufacturing cost of these self-operated thermostatic controllers is relatively high, and the temperature of therefore preferably raising the dried side of component substrate is used as the additional heating source of this purpose.

What be widely known by the people is that this component substrate can be by " adjust (tuned) " yet with the temperature of improving the adjuster on sleeve and the relation that is heated the temperature of liquid---be known that and should " adjustment (tuning) " have destroyed the required uniform temperature of milk heater.Inventor's investigation is presented at wet sides and takes uniform step, and self-operated thermostatic controller can be installed in dried side with further revising.

Figure 48 b shows the sectional view for theheating chamber 110 of milk foaming.In this case,mechanical ferrule element 202 is attached on thealuminium substrate 201, and the aluminium substrate directly is attached on the bottom 12 ofwire chamber 110 more successively;Substrate 201 be configured to shown in Figure 31 a each 201.Self-operatedthermostatic controller 128 is directly installed on the center ofsubstrate 201, therefore self-operatedthermostatic controller 128 can obtain advantage from the lifting temperature ofsubstrate 201 latter stage during heating, andsleeve 202 further away from each other, therefore when device need to be restarted, its can still less be dried heat effects of any parameter of side.

Other self-operated thermostatic controller be oriented to the bottom on liquid (such as milk) the most probable position of burning have good thermo-contact, for example from the off-centring ofsubstrate 201.

Figure 33 a shows the sectional view of theheating chamber 110 similar to structure among the accompanyingdrawing 32a, has the self-operatedthermostatic controller 128 of installing towardssidewall 200 and thesubstrate 201 ofreservoir 110 simultaneously.Ideally, this self-operatedthermostatic controller 128 should be installed in the position underreservoir 110 jet pipes, because this zone is the decline of thereservoir 110 that is removed from milk, the therefore minimum any residual heat effects that may be heated in the element board 12.The inventor finds that self-operatedthermostatic controller 128 can be set at a raising from the temperature of required milk temperature, and thiswall 200 is because the falling away and the interpolation of new milk and rapidly cooling of milk.

Figure 33 b shows the distortion of the embodiment among Figure 33 a, and wherein self-operatedthermostatic controller 128 is installed in the outside that is positioned at the device on thecomponent substrate 201, and 32b is described in detail such as accompanying drawing.In this embodiment, expectation is positioned atsubstrate 201 under the self-operatedthermostatic controller 128 and may operate under the temperature that is higher than position shown in Figure 33 a.Improving termination and the temperature of reforming more can be favourable to installing, and the preferred temperature of this device is lower than 60 ℃, so this device still resets under the environment temperature around.

In all relevant embodiment, preferred, for example this bimetallic action part of self-operatedthermostatic controller 128 directly contacts with device, so that guarantee good thermo-contact.

The position of agitator, speed and running time

Milk foam maker usually has the foam maker accessory and is used for whipping milk when heating to milk for foaming milk and agitator accessory.Usually be understood in industry, if foam maker or agitator have been offset the center of heating chamber, then milk foam maker or agitator are what improve.The inventor disagrees with this theory, and has determined that foam maker or agitator are concentric with element board, in other words, allow milk directly to stir at the element sleeve pipe at the center ofdevice heating chamber 110, thereby heater operates in lower temperature.Therefore, the preferred position of agitator is the center of this device.By making foam maker or agitator location near element board, and then the temperature on the sleeve pipe is lowered.

Figure 29 a to 29c schematically shows the separately different embodiment with thestainless steel reservoir 110 of thesubstrate 201 that formsheating plate 12 andelement sleeve 202.

Reservoir 110 comprisesremovable lid 220, wherein is combined with successivelyaxle 210 and foam maker/agitator 136.Lid can comprise bearinghousing 211, as the supporter of axle and electromotor (not shown).Replacedly, shown in Figure 29 c, this foam maker/agitator 136 can have magnetic part 301 in its radially outer part, is driven by the solenoid 300 that has near this foam maker/agitator height that is positioned atwall 200 outsides.Coil 300 is configured to the armature of electromotor, and wherein foam maker/agitator 136 is rotor.

Under each situation, foam maker/agitator 136 is all concentric with element sleeve 202.Under each situation, the preferred heights of the foam maker/agitator on the element board is for being 15mm and the minimum 4mm of being to the maximum.

The speed of foam maker/agitator 136 is played the part of most of role equally in processing is heated or foamed to milk.What can be determined is, the suitable speed offoam maker 136 shown in Figure 29 b under no-load condition is between 2500 and 3000 rpms, or when stirring Several Typical Load, when heating 150ml with 450 watts element, be 1500 rpms (rpm) for example.If speed too slowly will be seldom or the generation of foaming; If too fast, milk may eject fromreservoir 110 owing to the foaming processing.

The radical length that increasesagitator 136 can increase the peripheral speed of agitator, therefore can use thelonger agitator 136 of zero motor cooperation shown in Figure 29 a.This more jogging speed can reduce since any injustice of axle or agitator very or depart from the vibration that causes at the center and can cause device quieter, more stable.

Figure 29 d, 29e and 29f illustrate respectively the distortion offoam maker 136, and each comprisesaxle 210,oar 139 and coil 138.Oar among the accompanying drawing 29d is solid, to be suitable for diluent liquid.Oar shown in Figure 29 e is hollow, allows level and smooth flowing in thicker liquid.In Figure 29 f, oar is arranged to horn shape so that move as screw, to give the liquid axial velocity and to impel liquid to stir.Oar can comprise other features in other embodiments, and for example duck eye or fine mesh are mixed or agitated liquid withassistance.Coil 138 can be arranged on the upper surface ofoar 139, rather than shown in radial outer surface.Wherein foaming does not need to pine for for the adding of milk of for example taking iron (latte) coffee to use, and thiscoil 138 can omit to form agitator together.

The foam maker of larger diameter allows theoar 139 ofcoil 138 or associating to be disposed on the heater, owing to having more multithread dynamic resistance, needs more high-power motor to go to reach and satisfies the required minimum speed of foaming milk.This is namely shown in Figure 29 k, have radiallylarge oar 139 and radially less coil 138.Shown in Figure 29 j, if need more low-energy motor, soless oar 139 can be preferred.Replacedly, use dorsad crooked rather than oar radially, shown in Figure 29 g and 29h, can increase equally the speed of required given resistance, and increase the Radial Flow of liquid, improve the mixing of liquid and the cooling of the element board 32 on the element sleeve.

What be used for foaming heats, andoar 139 can be in the situation that there becoil 138 to use.Preferably,oar 139 has the vertical direction size larger than horizontal direction size.In one embodiment,oar 139 for diameter is 20-40mm, horizontal direction is 2-4mm, vertical direction is 5-10mm.In the embodiment shown in Figure 29 i,oar 139 is included in the relative high outer foil 139a radially of vertical direction, by at relative short coupling part, the inside 139b radially of vertical direction, be connected toaxle 210, to finish good mixing at heater minimizing in theimpedance situation.Agitator 136 can comprise towards the tip end ofaxle 210 temperature sensor in (zone that for example centers onoar 139).This temperature sensor can for example be thermocouple.This temperature sensor can be electrically connected to controller alongaxle 210.

An interchangeable or additional scheme that is used for the liquid superheat of anti-locking apparatus is thatcontroller control agitator 136 moves short time, for example 30 seconds behind the self-operated thermostatic controller cut-off device.This guarantees that all the residual heats in the element were transferred to milk before milk is poured out, and this has reduced energy dissipation and has reduced the overshoot temperature.Successively, because element board does not reach a temperature that is raised, this is also to there being active influence resetting time.

Thick film or printed element

Embodiment above some is for the mechanical organ of lower cost.Common, the cost of manufacture of thick-film heating element is much larger than mechanical organ, and however, owing to the one or more reasons in the following reason, the performance of thick-film heating element is better:

A) low quality more, therefore after element was stopped energy supply, rudimental energy still less need to be dissipated, and the possibility of being burnt of the residual milk after less the boiling.

B) heat of crossing element board better distributes, and guarantees to cross the distribution of element board isothermal.

C) better dry combustion method control.Thick film element can comprise overtemperature protection, such as the disclosed E-Fast of WO-A-2006/083162^TMProtection or the disclosed parallel E-Fast of WO-A-2008/150172.

Investigation that the inventor finishes shows uses the thick film screen printing element with aforesaid additional PTC sensor to have further advantage.Advise the performance that these identical sensing equipments can be used to assist to promote milk heating device.

Because when temperature increased, the PTC trace was responsive to the climbing of liquid in the device, so resistance is measured in the PTC trace.

Disclosed experimental result demonstrates the resistance variations (take ohm per second as tolerance) during Milk During Heating.Resistance when cold is very low, still fast rise during initial heating; Then, because the temperature of element dry face dissipates in the milk by heat and stablized, the resistance climbing reduces.In some cases, if if for example burn and occur or agitator does not move, heat can quite violent variation to the dissipation in the milk.

Measurement that it should be noted that actual employing is the device finished specific to test experiments, and only is used to the purpose explained.Phenomenon after the expected result can be excavated in other type of device, size and power grade, and is used for other liquid that are heated and process equally.

The target of this test is to form an algorithm, and this algorithm can be formed for the basis of the electronic control module of heating milk and other liquid.

How to excavate this phenomenon in order understanding, to understand the PTC sensor and under usual condition, how to react very important.

Figure 37 shows the PTC sensor that utilizes during clean element surface is exported Milk During Heating.What can see is to exist to continue first initial temperature fast rise of 3.5 seconds.Climbing is near 105 ohm of per seconds in this example.After initial fast rise, sensor signal is climbed with the almost constant climbing near the climbing of 12 ohm of per seconds.The peak value of resistance of cut-out point is 12150 ohm.

For relatively, further be operated under the situation of different packed height 65ml to 130ml and 495 watts to 577 watts of different power grades, carry out at same device.The key of discovery specific temperature rise is measured only small difference.Factor between the minimum and maximum packed height is 1.4, and the factor between maximum wattage and the minimum wattage is 1.2.

Figure 38 shows the reaction of sensor in 10 seconds the dry combustion method device is switched on is tested when heating chamber adds any milk.The horizontal shading line adds 12150 ohm of places in the drawings, is the highest ranking under the usual conditions herein.

In order to determine do not have milk to exist, this algorithm can use rate of change to detect or restriction detects or both combinations.

It is 270 ohm of per seconds that Figure 38 shows first rate of change of 3.5 seconds, and it is significantly higher than the initial rate of change of 105 ohm of per seconds measuring under the ordinary milk heating mode.If climbing, for example doubles 210 ohm of per seconds of this initial climbing fully greater than the normal operations finding, can stop power supply based on the electronic controller of this ascent algorithm rate of change.Controller can calculate the climbing at one second interval, fast detecting dry combustion method situation.

Replacedly, useful introducing for example 3.5 seconds delay control is processed, if climbing will just begin after will stablizing so that detection is until liquid has existed.This is because user's possibility for the purpose that cleans, when heating different liquid (for example water), can during heating remove or unclamp agitator; Any one of them all can cause climbing to increase to the contingent point of tedious mistake.In this case, whether climbing has begun to stablize after postponing in 3.5 seconds controller meeting sensing, if this does not exist, such as, occuring in 1.5 seconds the time frame, the power supply of element can be interrupted.In this stage, climbing can be slack-off under dry-fire condition, but still can be suitable be higher than climbing when having liquid, therefore expect that the climbing of 75 ohm of per seconds can become the standard that device stops energy supply.The time of power cutoff can be near 5 seconds.

In a further embodiment, threshold test can be used, and threshold criteria is arranged to be higher than the highest level that ordinary milk reached between the period of heating.Threshold value setting is 12400 ohm and interrupts power supply after can be in the time of about 7 seconds, is slower than the climbing reaction time, yet this is conducive to the design performance/demand of thick film element and still suitable for equal electromechanical controller.

More advantageously, if when milk is heated, under any reason, device can not turn-off, and the climbing of expansion and threshold can provide further safeguard protection.When the milk of q.s is boiled, the rising that component temperature can be suitable.In the experiment that in Figure 40, is shown in detail; power supply is detected in the near future at Failure Mode and is manually turn-offed; but what can see is; resistance increases fast with the climbing of 150 ohm of per seconds and surpasses 12400 ohm threshold value, so climbing or threshold method can provide suitable protection under the serious failed pattern of this safety.

In each of these examples, the difference of rate of change considerably experiences greater than minimum and maximum capacity and wattage test period, therefore expects that the method is reliable when gamut is used.

Detecting element plate wet sides milk precipitates burn more difficult finishing.In order to understand this difficulty, be provided with an experiment, wherein milk heater stands during five continuous milk foaming, and this experiment is so that the milk residue is precipitated after during each, and all carries out under the situation without any cleaning between during each.Under these situations, milk precipitates can demonstrate the sign of overheating during quite objective the 5th.

The climbing that Figure 41 shows during the aft section during five is basic identical, although the initial initial resistance of element is higher, initial high climbing continues longer, and the signal of final PTC sensor is obviously higher.

Figure 42 shows first 20 seconds the snapshot (snapshot) during each, is conducive to pay close attention to the 6 second period (between 6 seconds and 12 seconds) during each.This is after the fast rise rate and the period of climbing before stable.Can see, during 1, this end during 6 seconds, climbing is stable to 12 ohm of per seconds, it approaches and keeps the climbing of remaining period very much, however the climbing during the 5th is higher than 31 ohm of per seconds and no longer begins to stablize.

The increase of the climbing during this 6 second period and increase and skew initial resistance are the results that the milk precipitates on the element board wet sides causes.Gradient during the 5th is greater than 2.6 times between the first phase.

More early mention, the ratio of packed height scope and power grade is respectively 1.4 and 1.2, therefore expects to have enough safety allowances so that checkout equipment can be used as the basis of the accumulation of the milk precipitates on the recognition component.The method can be in conjunction with running through the threshold test of measuring between the whole period of heating.For example in accompanying drawing 41, initial sensor values is 10860 ohm between the first phase, and it differs 1301 ohm increasing to 12161 ohm during this period.2 differ 1446 ohm during this time, differ 1860 ohm than increasing to during having increased by 15%, the 5 between the first phase, than having increased by 43% between the first phase.

Can threshold value be set at production line operation test period.In case base region is known, 3 and 4 being seenbase regions 30% during then for example setting is higher than, heating to be given the user.Algorithm can be set, and be done during therefore allowing, but give signal of user: container needs cleaned, as using the LED flicker.

An example of this algorithm comprises the feature shown in the flow chart shown in Figure 43 a and 43b.This algorithm reference value of supposition (or a plurality of reference value) is stored during the first production line operation of unit.Equally also passable is that control module calculates the second reference set by the user in " going out box " operating period at first.

What be additional to this is, is favourable with reference to theNTC thermistor 14 during the initial start of unit on the production line andPTC sensor trace 30 resistance values, can help to decide the house temperature of PTC sensor resistance of traces.This single reference can help to reduce the effect spread that has of sensor offset, this skew be in the reality since when batch production typography deviation produce.The slope of sensor characteristics is set by the TCR of material, and it can not change in batch production too much, but alters a great deal in difference is criticized.

Use a problem of printed sensor to be that the deviation of material and technique can cause the room temperature resistance (resistivity deviation) ofsensor trace 30 and temperature variant resistance change rate (TCR deviation) to have suitable significant difference.

A method of improving this is to carry out at 2 with reference tochecking.NTC sensor 14 can have the tolerance less than printed sensor 30.When device when tested on production line, testing software extracted NTC andPTC sensor 14,30 resistance initial reading beforeelement 12 is activated.PTC sensor electrical resistance can be extracted under the temperature identical with NTC sensor electrical resistance, provides first reference point.This can not be a concrete temperature, but more accurate stands for room temperature value.Then element is started to heat a certain amount of water.Heating and whipping procedure are carried out, in case thenNTC sensor 14 is detected target temperature (for example, milk foam maker is near 70 ℃), element is closed.During this time, the second reference value obtains from PTC sensor 30.The actual temperature ofPTC sensor 30 may be higher than the temperature of NTC sensor, because the PTC sensor is adjacent to the heater trace.But, therefore testing element can obtain the reference value of two PTC sensors, can allow the calculating of the threshold value of fixed value or rate of change.These threshold values can be used for above-mentioned algorithm and burn to detect dry combustion method or milk.

Test demonstrates whether initial climbing is stirred according to liquid and different, is 140 ohm of per seconds when for example stirring, and not stirring is 190 ohm of per seconds.Advantageously, this difference can be used for detecting agitator or whether foam maker is failure to actuate, for example because agitator or foam maker motor are not assembled on the individuality.In response to this detection, further heat suppressed or reduce, or indicator can make the user know that agitator does not exist, for example use the LED illumination.

The embodiment that replaces

The utility model is not limited to kettle, milk foam maker or agitator, and heating element heater; The each side of this utility model can be applicable to other heating liquid and/or stirs foam device, such as kettle, coffee making device (such as mocha and espresso maker), Turkey's tea maker, samovars (Muscovite a kind of device of heating up water and warming oneself), kettle teapot, pan, condiment, hobboing cutter, steamer, chocolate shower nozzle, fondue, food steamer (steamers), high pressure cooking pan pot, electric iron, food processor, mixer, fruit juice mixer, submissive device (smoothie maker).The each side of utility model can be applicable to liquid distributor, for example uses pump or sprays dispense liquid.

Above-mentioned specific embodiment is for reference only described, and many modifications or variation all can fall in the scope of appended claim.

Claims (41)

1. a heating liquid distributor comprises: the heating liquid part that comprises liquid heating apparatus; Distribution portion and other part is characterized in that: these parts can link together removedly.

2. device as claimed in claim 1, it is characterized in that: this other part can be connected between this heating part and this distribution portion.

3. device as claimed in claim 1 or 2 has by one or more liquid storage devices that limit in the described part.

4. device as claimed in claim 3, it is characterized in that: this heating part comprises the bottom of this reservoir.

5. device as claimed in claim 1 or 2, it is characterized in that: this other part comprises first and second other parts that can link together removedly.

6. device as claimed in claim 3 is characterized in that: the part of this reservoir volume is included in in this heating part and this other part each.

7. device as claimed in claim 1 or 2 is characterized in that: one or more can the linking together in the described part, so that described part is by predetermined aligned.

8. device as claimed in claim 1 or 2, it is characterized in that: at least one in this part comprises heat-insulating material or device.

9. device as claimed in claim 1 or 2 comprises: a plurality of interchangeable described parts.

10. device as claimed in claim 9 comprises support member or housing for described a plurality of interchangeable parts.

11. device as claimed in claim 1 or 2 is characterized in that: this other part is disposable.

12. device as claimed in claim 1 or 2 is characterized in that: this distribution portion is disposable.

13. device as claimed in claim 1 or 2, wherein this other part comprises reservoir, and firing equipment can operate to heat the contents of this reservoir, and described distribution portion has the distributing equipment for the contents that distribute this reservoir, and it is characterized in that: a plurality of different described distributing equipments can be connected to this reservoir or this firing equipment removedly.

14. device as claimed in claim 1 or 2, wherein this other part comprises reservoir, and firing equipment can operate to heat the contents of this reservoir, and described distribution portion has the distributing equipment for the contents that distribute this reservoir, and it is characterized in that: this distributor comprises flexible conduit.

15. device as claimed in claim 1 or 2, wherein this other part comprises reservoir, and described firing equipment can operate to heat the contents of this reservoir, and described distribution portion has the distributing equipment for the contents that distribute this reservoir, it is characterized in that: this reservoir can be filled when being inverted.

16. device as claimed in claim 1 or 2, wherein this other part is reservoir, and described firing equipment can operate to heat the contents of this reservoir, and described distribution portion has the electric gas-powered distributing equipment for the contents that distribute this reservoir.

17. device as claimed in claim 16 is characterized in that: described distributor electrically connects maybe can be connected to the radio source base, and comprises for the power supply that electric energy is provided to this distributor when this distributor and this power supply base disconnect.

18. device as claimed in claim 1 or 2, wherein this other part comprises reservoir, and described firing equipment can operate to heat the contents of this reservoir, and described distribution portion has the distributing equipment for the contents that distribute this reservoir; It is characterized in that: described heating liquid distributor also comprises for the equipment that stirs or stir these reservoir contents.

19. device as claimed in claim 18 is characterized in that: this stirring or agitating equipment can be driven by motor.

20. device as claimed in claim 19 is characterized in that: this motor is mechanically connected to the agitator in this reservoir.

21. device as claimed in claim 20 is characterized in that: this motor and agitator are integrated into the assembly that can be installed in removedly in this device on this device maybe.

22. device as claimed in claim 20 is characterized in that: in this motor and the agitator one or both can be installed in this distributor or on this distributor removedly.

23. device as claimed in claim 19 is characterized in that: this motor magnetic coupling is to the agitator in this reservoir.

24. device as claimed in claim 20 is characterized in that: but this stirring or agitating equipment manual operation.

25. device as claimed in claim 18, it is characterized in that: described distributor electrically connects maybe can be connected to the radio source base, and comprises for the power supply that electric energy is provided to this stirring or agitating equipment when this distributor and this power supply base disconnect.

26. device as claimed in claim 1 or 2, wherein this other part is liquid storage device, and described firing equipment can operate to heat the liquid of this reservoir, and described distribution portion has for the pump from this reservoir dispense liquid, it is characterized in that: this distributor has the pump suppression equipment, this pump suppression equipment is used for suppressing the operation of pump, until the viscosity of heated liquid sufficiently is low to moderate and can be assigned with in this reservoir.

27. device as claimed in claim 26 is characterized in that: this pump suppression equipment comprises the temperature sensor that is heated fluid temperature for detection of this.

28. device as claimed in claim 26 is characterized in that: this pump suppression equipment comprises for determining that this is heated the timer of the duration of heat of liquid.

29. device as claimed in claim 26 comprises: be used for stirring the agitator that is heated liquid that is positioned at this reservoir, this pump suppression equipment comprises for detecting the viscosity sensing equipment that this is heated liquid viscosity by activating this agitator.

30. device as claimed in claim 29 is characterized in that: this viscosity sensing equipment comprises load detection equipment, for detection of the load of the motor that drives this agitator.

31. device as claimed in claim 30 is characterized in that: this load detection equipment comprises for the closing device of closing motor when transshipping.

32. heating liquid distributor as claimed in claim 26 has separable assembly, it is characterized in that: this assembly is by the electric driving of the annex of this reservoir, and this assembly comprises a plurality of independent electric functions.

33. device as claimed in claim 32 is characterized in that: described independent electric function comprises one or more agitators and pump dispenser.

34. device as claimed in claim 1 has thick-film heating element, described thick film element comprises: the substrate with thick-film heating trace; And temperature sensor, described temperature sensor comprises the thick film TEMP trace that is formed on the substrate, it is characterized in that: this TEMP trace comprises one or more firsts of the first material with high resistivity and/or high temperature coefficient of resistance, and has one or more second portions of the second material of low-resistivity and/or low resistance temperature coefficient.

35. device as claimed in claim 1 has thick-film heating element, this thick-film heating element comprises: the substrate with thick-film heating trace; And temperature sensor, this temperature sensor comprises the thick film TEMP trace that is formed on the substrate; It is characterized in that: this heating trace comprises that at least one pair of connects the heating part of almost parallel at one end, wherein, this TEMP trace extends between the part of described at least one pair of almost parallel and comprises Sensor section almost parallel, that a contiguous described end connects.

36. device as claimed in claim 1 has thick-film heating element, this thick-film heating element comprises: the substrate with thick-film heating trace; And temperature sensor, this temperature sensor comprises the thick film TEMP trace that is formed on the substrate, it is characterized in that, this heating trace and this TEMP trace are formed by same thick-film material.

37. device as claimed in claim 1 is characterized in that, has thick-film heating element, this thick-film heating element comprises: have the substrate of thick-film heating trace and integrally formed vapor sensor on this substrate.

38. device as claimed in claim 1 has liquid heater, described liquid heater comprises: be used for contact with the element board of heated liquid; With local heating element heater, this local heat arrangements of components becomes by substrate and this element board thermo-contact between this element board and this heating element heater, it is characterized in that, this substrate is thicker than other parts in the part of contiguous this heating element heater, so that heat evenly distributes on this element board.

39. device as claimed in claim 1 has liquid heater, described liquid heater comprises: be used for the element board that contact is heated liquid; With local heating element heater, this local heat arrangements of components becomes by substrate and this element board thermo-contact between this element board and this heating element heater, it is characterized in that, this substrate has the space of contiguous this heating element heater, so that heat evenly distributes on element board.

40. device as claimed in claim 1 has liquid heater, described liquid heater comprises: be used for the element board that contact is heated liquid; With local heating element heater, this local heat arrangements of components becomes by substrate and this element board thermo-contact between this element board and this heating element heater, it is characterized in that, this substrate extends outwardly above this element board, so that heat evenly distributes on element board.

41. device as claimed in claim 1, has liquid heater, described liquid heater comprises: element board, this element board has the local heat element that is configured to this element board thermo-contact, it is characterized in that, this local heat element has elongated winding form, so that heat evenly distributes on element board.

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