Cooking apparatusTechnical field
The present invention relates to cooking apparatus, in particular to a kind of improvement of the air extractor of cooking apparatus.
Background technology
Currently, electric pressure cooking saucepan and electric cooker have become standing family kitchen small household appliances.Electric pressure cooking saucepan in the market and electric mealPot has reservation and heat insulation function.In summer, ambient temperature is high, and when long-time is preengage or is kept the temperature, the foods such as rice, meat soup are oftenIt can steep bad rotten so that poor user experience.Currently, usually using pumping, freeze etc. in the way of carry out it is fresh-keeping, in small household appliances fieldMost convenient it is handy be the fresh-keeping scheme of negative pressure.Pot body is generally comprised using the electric pressure cooking saucepan of said program and lid is located in pot bodyPot cover, pot cover includes the inner cover, liner and outer cover set gradually from the inside to the outside.Sealing, sealing are provided on pot coverInterior formation pumping chamber, pumping chamber are connected to by the interior communicating passage covered with the cavity in pot body.Electric pressure cooking saucepan further includes float,Float is movably disposed in communicating passage.When float is moved to top, pumping chamber is not connected to mutually with the cavity in pot body.When float is located at lower part, pumping chamber is connected to the cavity in pot body.Due to when pumping finishes, pumping chamber and the chamber in pot bodyInternal pressure is consistent, and when leading to culinary art, the hot gas in pot body constantly enters in pumping chamber so that the interior pressure with pumping chamber of pot bodyDifference is smaller, is not enough to that float is pushed to move up.In this way, on the one hand making float that can not be moved to top, cause pressure cooker can not be justOften upper pressure, on the other hand, since sealing includes sealing ring, once the pressure in pumping chamber is larger, hot gas be likely to fromIt is flowed out by force at sealing ring, causes to generate the sharp sound at sealing ring so that poor user experience.
Invention content
The main purpose of the present invention is to provide a kind of cooking apparatus, with solve cooking apparatus in the prior art can not onThe problem of pressure.
To achieve the goals above, the present invention provides a kind of cooking apparatus, including:Cooking cavity;Pumping chamber, with cooking cavityBetween be equipped with the first communicating passage so that the gas in cooking cavity can be extracted by pumping chamber;Air extractor, air extractorAir entry be connected to pumping chamber;Float has the bleed position for making pumping chamber be connected to cooking cavity and makes pumping chamber and cookThe disconnected sealing station of chamber of preparing food;Second communicating passage is connected to pumping chamber and ambient atmosphere;Switching mechanism, setting connect secondAt circulation passage, when switching mechanism in the open state, the second communicating passage is connected to pumping chamber and ambient atmosphere, works as switching mechanismWhen being closed, the second communicating passage is blocked, and pumping chamber is not connected to mutually with ambient atmosphere;Control device, when control fillsIt sets when receiving pumping signal, float is located at bleed position, and control device controls air extractor and is evacuated, and controls switching on and shutting downStructure makes switching mechanism be closed, when control device receives cooking signals, control device control air extractor not intoRow pumping, and control switch mechanism, keep switching mechanism in the open state, when the pressure in cooking cavity reaches predetermined value,Float can be moved to sealing station by bleed position.
It applies the technical scheme of the present invention, cooking apparatus includes:Switching mechanism at the second communicating passage is set.When openingIn the open state, the second communicating passage is connected to pumping chamber and ambient atmosphere to shutting mechanism, when switching mechanism is closedWhen, the second communicating passage is blocked, and pumping chamber is not connected to mutually with ambient atmosphere.In pumping, switching mechanism is closed,So that pumping chamber is not connected to mutually with the external world, ensure that the gas in pumping chamber and cooking cavity can be extracted out smoothly.And works as and need to carry outWhen culinary art, control device control switch mechanism open so that pumping chamber is in communication with the outside, the pressure in pumping chamber always with the external worldPressure is equal, and with the increase of the pressure in cooking cavity, the pressure difference of cooking cavity and the gas in pumping chamber is also increasing therewith, whenWhen pressure difference is enough to overcome the gravity of float, float can float up to sealing station.Above structure makes in culinary art, in cooking cavityIt normally upper can press, ensure the culinary art effect of cooking apparatus.
Further, when control device, which receives negative pressure, maintains signal, control device controls air extractor and stops pumping,And control device control switch mechanism, makes switching mechanism be closed.
Further, when control device does not receive the control signal of control switch mechanism, the connection of the second communicating passagePumping chamber and ambient atmosphere.
Further, switching mechanism includes plugging structure, and plugging structure is movably disposed at the second communicating passage, whenIn the open state, plugging structure avoids the second communicating passage to switching mechanism, when switching mechanism is closed, blocksThe second communicating passage of structural traps.
Further, the second communicating passage by the first communicating pipe of connection pumping chamber and switching mechanism, switching mechanism insideCavity, coupling cock mechanism and ambient atmosphere formed the second communicating pipe, switching mechanism further includes shell, plugging structure settingInside the housing, the first connector and the second connector are provided on shell, the cavity of the first fittings enclosure and second connectSiphunculus, the second fittings cavity and the first communicating pipe, plugging structure are movably disposed at connecting far from first for the second connectorOne end of siphunculus.
Further, plugging structure includes pusher structure and sealing structure in pusher structure end is arranged, and works as switchWhen mechanism is closed, pusher structure is by sealing structure pushing tow in one end far from the first communicating pipe of the second connector.
Further, switching mechanism further includes the driving portion for driving plugging structure movement.
Further, driving portion controls plugging structure movement by Electromagnetic Control mode.
Further, cooking apparatus includes:Pot body, to hold food to be cooked;Pot cover, lid are located in pot body, potLid includes cover, liner and the inner cover from top to bottom set gradually, is provided with sealing on pot cover, sealing is surrounded with inner coverCavity form pumping chamber, the cavity that inner cover and pot body are surrounded forms cooking cavity, and the first communicating passage is arranged in inner cover.
Further, interior lining is provided with installing port, and sealing includes that the seal closure being arranged at installing port and setting existSealing ring between installing port and inner cover, seal closure, sealing ring and inner cover are collectively formed pumping chamber, are provided with and inhale on seal closureThe third connector of gas port connection, and the 4th connector that is connected to the first communicating pipe.
Further, the exhaust outlet and ambient atmosphere of the first connector and air extractor are interconnected.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention showsMeaning property embodiment and its explanation are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings:
Fig. 1 shows the side structure schematic view of the embodiment of cooking apparatus according to the present invention;
Fig. 2 shows the vertical profile structural schematic diagrams on a direction of the cooking apparatus of Fig. 1;
Fig. 3 shows the vertical profile structural schematic diagram on another direction of the cooking apparatus of Fig. 1;
Fig. 4 shows the enlarged structure schematic diagram at the A of the cooking apparatus of Fig. 3;
Fig. 5 shows the dimensional structure diagram of the liner of the cooking apparatus of Fig. 3;
Fig. 6 shows the enlarged structure schematic diagram at the B of the cooking apparatus of Fig. 5;
Fig. 7 shows the internal structure schematic diagram of the switching mechanism of the cooking apparatus of Fig. 1;And
Fig. 8 shows the vertical profile structural schematic diagram of the switching mechanism of the cooking apparatus of Fig. 7.
Wherein, above-mentioned attached drawing includes the following drawings label:
1, cooking cavity;2, pumping chamber;3, cavity;10, pot body;20, pot cover;21, cover;22, liner;23, inner cover;231,First communicating passage;30, sealing;32, seal closure;321, third connector;322, the 4th connector;33, sealing ring;40, it is evacuatedDevice;41, air entry;42, exhaust outlet;50, float;60, switching mechanism;61, plugging structure;611, pusher structure;612, closeSeal structure;62, shell;621, the first connector;622, the second connector;63, driving portion;80, the first communicating pipe;90, the second connectionPipe;91, the first hose;92, the second hose;100, third hose;110, the 5th connector.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phaseMutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figures 1 to 8, the cooking apparatus of the present embodiment includes:Cooking cavity 1, pumping chamber 2, air extractor 40, float50, the second communicating passage, switching mechanism 60 and control device.Wherein, it is connected to equipped with first between pumping chamber 2 and cooking cavity 1Channel 231 is so that the gas in cooking cavity 1 can be extracted by pumping chamber 2.The air entry 41 of air extractor 40 and pumping chamber 2Connection.Float 50 has the bleed position for making pumping chamber 2 be connected to cooking cavity 1 and keeps pumping chamber 2 and cooking cavity 1 disconnectedSealing station.Second communicating passage leads to pumping chamber 2 and ambient atmosphere.Switching mechanism 60 is arranged at the second communicating passage, when openingIn the open state, the second communicating passage is connected to pumping chamber 2 and ambient atmosphere to shutting mechanism 60, is closed when switching mechanism 60 is inWhen state, the second communicating passage is blocked, and pumping chamber 2 is not connected to mutually with ambient atmosphere.When control device receives pumping signalWhen, float 50 is located at bleed position, and control device controls air extractor 40 and is evacuated, and control switch mechanism 60, makes switching on and shutting downStructure 60 is closed, when control device receives cooking signals, control device control air extractor 40 without pumping,And control switch mechanism 60 keeps switching mechanism 60 in the open state, when the pressure in cooking cavity 1 reaches predetermined value, floatsSon 50 can be moved to sealing station by bleed position.
Using the technical solution of the present embodiment, cooking apparatus includes:The switching mechanism 60 being arranged at the second communicating passage.When switching mechanism 60 in the open state, the second communicating passage is connected to pumping chamber 2 and ambient atmosphere, when switching mechanism 60 is inWhen closed state, the second communicating passage is blocked, and pumping chamber 2 is not connected to mutually with ambient atmosphere.In pumping, at switching mechanism 60In closed state so that pumping chamber 2 is not connected to mutually with the external world, ensures that the gas in pumping chamber 2 and cooking cavity 1 can smoothly be taken outGo out.And when being cooked, control device control switch mechanism 60 is opened so that pumping chamber 2 is in communication with the outside, pumping chamberPressure in 2 is equal with ambient pressure always, with the increase of the pressure in cooking cavity 1, cooking cavity 1 and the gas in pumping chamber 2The pressure difference of body is also increasing therewith, and when pressure difference is enough to overcome the gravity of float 50, float 50 can float up to sealing station.OnIt states structure to make in culinary art, normally upper can be pressed in cooking cavity 1, ensure the culinary art effect of cooking apparatus.
In the present embodiment, when control device, which receives negative pressure, maintains signal, control device control air extractor 40 stopsIt is only evacuated, and control device control switch mechanism 60, switching mechanism 60 is made to be closed.Specifically, in the present embodimentIn, cooking apparatus has negative pressure pattern (marinated, fresh-keeping pattern) and culinary art pattern.Cooking apparatus has under negative pressure pattern to be taken outGas stage and negative pressure maintenance stage.When cooking apparatus enters air aspiration stage, air extractor 40 starts to take out the gas in cooking cavity 1Body, while control device control switch mechanism 60 is closed so that the extraction of the gas in cooking cavity 1 is more smooth.When the pressure in cooking cavity 1 is reduced to predetermined value or extract gas time reach the predetermined time when (the above-mentioned predetermined time orPredetermined pressure value can become negative pressure and maintain signal), control device controls air extractor 40 and stops pumping, and maintains switching on and shutting downStructure 60 is closed.Since cooking cavity 1 is not connected to mutually with the external world, the pressure of gas can be kept in cooking cavity 1, thisWhen be in the negative pressure maintenance stage.Since there may be gas leakage for cooking apparatus, when the pressure in cooking cavity 1 rises to predetermined value orAfter negative pressure maintains the predetermined time, need to reenter air aspiration stage.In this way, reciprocation cycle, to ensure the pressure in cooking cavity 1By force always within a predetermined range, and then marinated, fresh-keeping purpose is completed.
In the present embodiment, when control device does not receive the control signal of control switch mechanism 60, the second connection is logicalRoad is connected to pumping chamber 2 and ambient atmosphere.Above structure to fail even if switching mechanism 60, cannot cut off pumping chamber 2 and the external worldThe access of connection, then be at most also the negative pressure pattern failure of cooking apparatus, can not be pickled, is fresh-keeping etc., but not shadowCooking apparatus is rung to be cooked.But if in the case where control device does not receive the control signal of control switch mechanism 60,Second communicating passage is blocked, just will appear float 50 can not on the problem of moving to sealing station, cause cooking apparatus can not onThe problem of pressure, generates.It should be noted that in the present embodiment, when in original state, (cooking apparatus does not enter into cooking apparatusAir aspiration stage and negative pressure maintenance stage) when, the second communicating passage is connected to pumping chamber 2 and ambient atmosphere.
As shown in Figure 7 and Figure 8, in the present embodiment, switching mechanism 60 includes plugging structure 61, and plugging structure 61 is removableGround be arranged at the second communicating passage, when switching mechanism 60 in the open state, plugging structure 61 avoid the second communicating passage,When switching mechanism 60 is closed, plugging structure 61 blocks the second communicating passage.
As shown in Fig. 5 to Fig. 8, in the present embodiment, the second communicating passage is by the of connection pumping chamber 2 and switching mechanism 60Cavity 3, coupling cock mechanism 60 and the second communicating pipe 90 of ambient atmosphere inside a connecting pipe 80, switching mechanism 60 form,Switching mechanism 60 further includes shell 62, and plugging structure 61 is arranged inside shell 62, and 621 He of the first connector is provided on shell 62Second connector 622, the first connector 621 are connected to cavity 3 and the second communicating pipe 90 inside shell 62, and the second connector 622 is connected to chamberBody 3 and the first communicating pipe 80, plugging structure 61 are movably disposed at one far from the first communicating pipe 80 of the second connector 622End.When switching mechanism 60 in the open state, plugging structure 61 to far from the second connector 622 move, the second communicating passage connectIt is logical.When switching mechanism 60 is closed, plugging structure 61 is connected on the second connector 622 so that the second communicating passageIt is blocked.Above structure is simple so that the connection or closure of the second communicating passage are easily achieved.
As shown in Figure 7 and Figure 8, in the present embodiment, plugging structure 61 includes pusher structure 611 and is arranged in push rod knotThe sealing structure 612 of 611 end of structure, when switching mechanism 60 is closed, pusher structure 611 pushes up sealing structure 612It pushes away in one end far from the first communicating pipe 80 of the second connector 622.Above structure is simple, and sealing structure 612 is so that the second connectionChannel is blocked better.
As shown in Figure 7 and Figure 8, in the present embodiment, switching mechanism 60 further includes the driving for driving plugging structure 61 to movePortion 63.Above structure can be that the plugging structure 61 provides driving force.
In the present embodiment, driving portion 63 controls plugging structure 61 by Electromagnetic Control mode and moves.Above structure is simple,It is easily achieved.
As shown in Figures 1 to 4, in the present embodiment, cooking apparatus includes:Pot body 10 and pot cover 20.Wherein, pot body 10To hold food to be cooked.Pot cover 20 lid be located in pot body 10, pot cover 20 include from top to bottom set gradually cover 21,Liner 22 and inner cover 23, sealing 30 is provided on pot cover 20, and sealing 30 forms pumping chamber with the cavity that inner cover 23 is surrounded2, inner cover 23 forms cooking cavity 1 with the cavity that pot body 10 is surrounded, and the first communicating passage 231 is arranged on inner cover 23.Above-mentioned knotStructure is simple, it is easy to accomplish.
As shown in Figure 3 and Figure 4, in the present embodiment, installing port is provided on liner 22, sealing 30 includes that setting is being pacifiedThe sealing ring 33 for filling the seal closure 32 at mouth and being arranged between installing port and inner cover 23, seal closure 32, sealing ring 33 and inner cover23 are collectively formed pumping chamber 2, the third connector 321 being connected to air entry 41 are provided on seal closure 32, and be connected to firstThe 4th connector 322 that pipe 80 is connected to.Above structure is simple, it is easy to accomplish.Preferably, 80 interference of the first communicating pipe is set in the 4thOn the outer surface of connector 322, air-tightness is improved.It should be noted that due in culinary art, switching mechanism 60 is in open shapeState, therefore the gas in pumping chamber 2 can drain into the external world, avoid the pressure in pumping chamber excessive.Hot gas would not be by force in this wayIt is flowed out from sealing ring, to avoid generating the sharp sound at sealing ring 33, improves user experience.
As shown in figure 5, in the present embodiment, it is provided with the 5th connector 110 being in communication with the outside on liner 22, the described 5thConnector 110 is connected to the water receiver of 22 lower section of liner.
As shown in Figure 1, in the present embodiment, the exhaust outlet 42 and ambient atmosphere of the first connector 621 and air extractor 40It is interconnected.Preferably, in the present embodiment, the second communicating pipe 90 included the first hose 91 and the second hose being connected with each other92, the first end of the first hose 91 is set in interference on the outer surface of the first connector 621, the first end interference of the second hose 92Ground is set on the 5th connector.Third hose 100 is arranged on the outer surface of exhaust outlet 42 with interference.The second of first hose 91It holds, the second end of the second hose 92 is connected to one end of the separate exhaust outlet 42 of third hose 100 by three-way connection.Above-mentioned knotStructure is simple, share the 5th connector can be realized air extractor 40 exhaust outlet 42 and the first connector 621 and ambient atmosphereConnection so that structure is more succinct.
Preferably, in the present embodiment, cooking apparatus further includes heating device, to be heated to cooking cavity 1.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this fieldFor art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repairChange, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.