CN107874612B - Cooking utensil - Google Patents

Abstract

The invention discloses a cooking appliance, comprising: a pan body; the pot cover is movably arranged on the pot body; the anti-overflow detection probe is arranged on the pot cover, and the detection value of the anti-overflow detection probe changes along with the change of the contact medium of the lower surface and/or the side surface of the anti-overflow detection probe; the detection chip is arranged on the pot body; the signal transmitting device is arranged on the pot cover and is connected with the anti-overflow detection probe; the signal receiving device is arranged on the pot body and is connected with the detection chip, when the pot cover is positioned at the opening position, the signal transmitting device is disconnected with the signal receiving device, and when the pot cover is positioned at the closing position, the signal transmitting device is contacted with the signal receiving device so that the detection chip generates a detection signal through the detection value variation of the detection anti-overflow detection probe. The cooking utensil provided by the embodiment of the invention has the advantages of high anti-overflow detection accuracy, strong reliability and the like.

Description

Cooking utensil

Technical Field

The invention relates to the technical field of electric appliance manufacturing, in particular to a cooking appliance.

Background

In order to implement an anti-overflow function, an anti-overflow detecting device is generally provided in a cooking appliance such as an electric rice cooker. Be applied to cooking utensil's anti-overflow detection device among the correlation technique, test probe establishes on the pot lid and detects chip and establishes on the pot body, connects test probe and detection chip through the connecting wire, closes like this and covers and uncap and can make the connecting wire buckle, and the connecting wire breaks easily, can lead to the connecting wire overlength moreover, and interference signal is too big, influences the accuracy that detects.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, the invention provides the cooking appliance which has the advantages of high anti-overflow detection accuracy, high reliability and the like.

To achieve the above object, a cooking appliance according to an embodiment of the present invention is proposed, the cooking appliance including: a pan body; a cover movably disposed on the pot body between an open position to open the pot body and a closed position to close the pot body; the anti-overflow detection probe is arranged on the pot cover, and the detection value of the anti-overflow detection probe changes along with the change of the contact medium of the lower surface and/or the side surface of the anti-overflow detection probe; the detection chip is arranged on the pot body; the signal transmitting device is arranged on the pot cover and is connected with the anti-overflow detection probe; the signal receiving device, the signal receiving device establishes on the pot body and with the detection chip links to each other, the pot cover is located during the open position, signal emission device with the disconnection of signal receiving device, the pot cover is located during the closed position, signal emission device with the contact of signal receiving device is so that the detection chip is through detecting anti-overflow test probe's detection value variation generates the detected signal.

The cooking utensil provided by the embodiment of the invention has the advantages of high anti-overflow detection accuracy, strong reliability and the like.

In addition, the cooking appliance according to the above embodiment of the present invention may further have the following additional technical features:

according to one embodiment of the invention, the signal transmitting device comprises a transmitting conductor connected with the anti-overflow detection probe, the signal receiving device comprises a receiving conductor connected with the detection chip, and when the pot cover is located at the closed position, the transmitting conductor and the receiving conductor are electrically connected to conduct the detection chip and the anti-overflow detection probe.

According to one embodiment of the invention, the end face of the end of the transmitting conductor facing the receiving conductor and the end face of the end of the receiving conductor facing the transmitting conductor are both oriented in the vertical direction when the lid is in the closed position.

According to one embodiment of the invention, the detection chip is a capacitance detection chip, the capacitance value of the anti-overflow detection probe changes with the change of the contact medium of the lower surface and/or the side surface of the anti-overflow detection probe, and when the pot cover is located at the closing position, the signal transmitting device contacts with the signal receiving device so that the capacitance detection chip generates a detection signal by detecting the change of the capacitance value of the anti-overflow detection probe.

According to one embodiment of the present invention, the signal receiving means includes a receiving conductor connected to the detection chip and a receiving insulator covering the receiving conductor, and the receiving insulator is in contact with the signal transmitting means when the lid is in the closed position.

According to one embodiment of the present invention, the signal transmitting means includes a transmitting conductor connected to the detecting chip and a transmitting insulator covering the transmitting conductor, and the transmitting insulator are in contact when the lid is in the closed position.

According to one embodiment of the invention, an end face of the transmitting insulator facing the end of the receiving insulator and an end face of the receiving insulator facing the first end of the transmitting insulator are both oriented in a vertical direction.

According to one embodiment of the present invention, the anti-overflow detecting probe includes: the electric conductor is connected with the signal transmitting device; the insulating body at least covers the side surface and/or the lower surface of the conductive body, the side surface and/or the lower surface of the insulating body form a detection surface, the capacitance value of the conductive body changes along with the change of a contact medium of the detection surface, and when the pot cover is positioned at the closing position, the signal transmitting device is in contact with the signal receiving device so that the capacitance detection chip generates a detection signal by detecting the change of the capacitance value of the conductive body.

According to one embodiment of the invention, the detection chip is a voltage detection chip, the resistance value of the anti-overflow detection probe changes with the change of the contact medium of the lower surface and/or the side surface of the anti-overflow detection probe, and when the pot cover is located at the closed position, the signal transmitting device is electrically connected with the signal receiving device so that the detection chip detects the resistance value change amount of the anti-overflow detection probe according to the voltage value change amount of the anti-overflow detection probe to generate the detection signal.

According to one embodiment of the invention, the anti-overflow detection probe comprises two electric conductors, and when the pot cover is located at the closed position, the signal transmitting device is electrically connected with the signal receiving device so that the two electric conductors are respectively conducted with the voltage detection chip.

According to an embodiment of the present invention, the cooking appliance further comprises a transmission connector respectively connected to the signal emitting device and the detection chip.

Drawings

Fig. 1 is a sectional view of a cooking appliance according to an embodiment of the present invention, in which a lid is located at an open position.

Fig. 2 is a sectional view of a cooking appliance according to an embodiment of the present invention, in which a lid is located at a closed position.

Fig. 3 is an enlarged view at B in fig. 2.

Fig. 4 is a sectional view of an anti-overflow detecting probe of a cooking appliance according to an embodiment of the present invention.

Reference numerals:cooking utensil 1,pot cover 10,pot body 20,cooking cavity 21,anti-overflow detection probe 301, electric conductor 310, insulator 320, detection face 321,detection chip 330,signal transmitting device 400, transmittingconductor 410, transmittinginsulator 420,signal receiving device 500, receivingconductor 510, receivinginsulator 520, andtransmission connecting piece 600.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Acooking appliance 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 3, acooking appliance 1 according to an embodiment of the present invention includes apot cover 10, apot body 20, ananti-overflow detecting probe 301, a detectingchip 330, asignal transmitting device 400, and asignal receiving device 500.

Thelid 10 is movably provided on thebody 20 between an open position to open thebody 20 and a closed position to close thebody 20. The overflowprevention detecting probe 301 is provided on thepot cover 10, and a detection value of the overflowprevention detecting probe 301 varies according to a change in contact of a lower surface and/or a side surface of the overflowprevention detecting probe 301 with a medium (an up-down direction is shown by an arrow a in fig. 1 to 4). Thedetection chip 330 is arranged on thepot body 20. Thesignal emitting device 400 is arranged on thepot cover 10 and connected with theanti-overflow detecting probe 301. Thesignal receiving device 500 is arranged on thepot body 20 and connected with thedetection chip 330, thepot cover 10 is located at the opening position, thesignal transmitting device 400 is disconnected from thesignal receiving device 500, and when thepot cover 10 is located at the closing position, thesignal transmitting device 400 is in contact with thesignal receiving device 500 so that thedetection chip 330 generates a detection signal by detecting the detection value variation of theanti-overflow detection probe 301. It should be understood here that "connecting" may include wired connection or wireless connection, "the signal transmittingdevice 400 is in contact with thesignal receiving device 500," may mean that the signal transmittingdevice 400 is in direct contact with a conductor portion of the signal receivingdevice 500 to achieve electrical connection, so that signals directly pass through, or may mean that the signal transmittingdevice 400 is in contact with the conductor portion of the signal receivingdevice 500 through an insulator portion to transmit signals by using the principle of capacitance induction.

As will be appreciated by those skilled in the art,lid 10 may be removably mounted tobody 20 or may be reversibly mounted tobody 20. "detection value" includes, but is not limited to, a capacitance value or a voltage value, etc.

According to thecooking appliance 1 provided by the embodiment of the invention, theanti-overflow detection probe 301 is arranged, so that the detection value of theanti-overflow detection probe 301 changes along with the change of the medium contacting theanti-overflow detection probe 301, the change condition of theanti-overflow detection probe 301 contacting the medium is judged by detecting the detection value of theanti-overflow detection probe 301, and whether the liquid (such as foam) in the cooking appliance has the tendency of overflowing is judged, so that the anti-overflow detection function is realized.

Moreover, by arranging the signal transmittingdevice 400 and thesignal receiving device 500, when thepot cover 10 is located at the closed position, the signal transmittingdevice 400 and thesignal receiving device 500 can be contacted, thereby, theanti-overflow detection probe 301 is connected with thedetection chip 330, so that the anti-overflow detection of thecooking appliance 1 is realized, compared with the cooking detection device in the related art, thedetection chip 330 on thepot body 20 can be prevented from being directly connected with theanti-overflow detection probe 301 on thepot cover 10 through a connecting wire, so that the connecting wire can be prevented from being bent due to repeated opening and closing of thepot cover 10, the damage of the connecting wire can be prevented, and the length of the connecting piece for connecting the anti-overflow detectingprobe 301 and the detectingchip 330 can be conveniently shortened, so that the detectingchip 330 and the anti-overflow detectingprobe 301 are not easily interfered when signal transmission is carried out, and the accuracy and reliability of the anti-overflow detection of thecooking appliance 1 are improved.

In addition, since thesignal emitting device 400 is disconnected from thesignal receiving device 500 when thelid 10 is located at the open position, and thesignal emitting device 400 is in contact with thesignal receiving device 500 when thelid 10 is located at the closed position, thecooking appliance 1 can be prevented from performing the anti-overflow detection when thelid 10 is located at the open position, so that thecooking appliance 1 can perform the anti-overflow detection only when thelid 10 is located at the closed position.

Therefore, thecooking appliance 1 according to the embodiment of the invention has the advantages of high anti-overflow detection accuracy, strong reliability and the like.

Acooking appliance 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

In some embodiments of the present invention, as shown in fig. 1 to 3, acooking appliance 1 according to an embodiment of the present invention includes alid 10, apot body 20, an overflowprevention detection probe 301, adetection chip 330, a signal transmittingdevice 400, and asignal receiving device 500.

Thesignal transmitting device 400 includes atransmitting conductor 410 connected to the overflowprevention detection probe 301, thesignal receiving device 500 includes areceiving conductor 510 connected to thedetection chip 330, and when thepot cover 10 is located at the closed position, the transmittingconductor 410 and thereceiving conductor 510 are electrically connected to conduct thedetection chip 330 and the overflowprevention detection probe 301. In other words, the transmittingconductor 410 and thereceiving conductor 510 are now in direct contact to make an electrical connection. This allows thetransmitting conductor 410 and thereceiving conductor 510 to be in contact and electrically connected when thepot lid 10 is located at the closed position, so that thedetection chip 330 and theanti-overflow detection probe 301 are conducted, and thedetection chip 330 generates a detection signal by detecting the detection value variation of theanti-overflow detection probe 301. Thereby, the number of parts of thecooking appliance 1 can be reduced, the assembly of thecooking appliance 1 is facilitated, and the cost of thecooking appliance 1 is reduced.

Advantageously, as shown in fig. 2 and 3, when thelid 10 is in the closed position, the end face of the end of the transmittingconductor 410 facing thereceiving conductor 510 and the end face of the end of thereceiving conductor 510 facing thetransmitting conductor 410 are both oriented in the vertical direction. Therefore, liquid is not easy to remain on thereceiving conductor 510 and thetransmitting conductor 410, and the phenomenon that when thepot cover 10 is located at the closed position, the liquid is remained between the transmittingconductor 410 and thereceiving conductor 510 to influence the accuracy of the detection signal is avoided, so that the anti-overflow detection reliability of thecooking appliance 1 is further improved.

In an embodiment of the present invention, as shown in fig. 1 to 4, thedetection chip 330 is a capacitive detection chip, the capacitance value of theanti-overflow detection probe 301 changes with the change of the contact medium of the lower surface and/or the side surface of theanti-overflow detection probe 301, and when thepot lid 10 is located at the closed position, the signal transmittingdevice 400 contacts the signal receivingdevice 500 so that the capacitive detection chip generates the detection signal by detecting the change of the capacitance value of theanti-overflow detection probe 301. It should be understood that the signal transmittingdevice 400 and thesignal receiving device 500 may be in direct contact via respective conductor portions to achieve electrical connection and may also be in contact via an insulator to transfer signals via capacitance induction. By utilizing the capacitance sensing principle, theanti-overflow detection probe 301 and thedetection chip 330 adopt a capacitance type detection device, so that the anti-overflow detection function can be realized, the cost of thecooking utensil 1 can be reduced, the misjudgment probability is reduced, and the accuracy of anti-overflow detection is improved.

Specifically, as shown in fig. 1-3, thesignal receiving device 500 includes a receivingconductor 510 connected to the detectingchip 330 and a receivinginsulator 520 covering thereceiving conductor 510, and the transmittinginsulator 420 is in contact with the signal transmittingdevice 400 when thelid 10 is in the closed position. Therefore, the signal transmittingdevice 400 and thesignal receiving device 500 can transmit signals by using the capacitance sensing principle, the capacitance variation of theanti-overflow detection probe 301 is transmitted to thedetection chip 330, the exposure of thereceiving conductor 510 can be avoided, and when the power supply of thedetection chip 330 is a non-safety power supply, the potential safety hazard caused by the fact that a user touches thereceiving conductor 510 by mistake can be avoided.

More specifically, as shown in fig. 1 to 3, the signal transmitting means 400 includes a transmittingconductor 410 connected to the detectingchip 330 and a transmittinginsulator 420 covering thetransmitting conductor 410, and the transmittinginsulator 420 and thereceiving insulator 520 are in contact when thelid 10 is in the closed position. It should be understood herein that "contacting" at this time means that the transmittingconductor 410 and thereceiving conductor 510 are in contact through the transmittinginsulator 420 and the receivinginsulator 520, i.e., the conductor portions of the signal transmittingdevice 400 and thesignal receiving device 500 are in contact through the insulators, so as to transmit signals by using the principle of capacitance induction. This prevents the transmittingconductor 410 and thereceiving conductor 510 from being exposed, further improving the reliability of thecooking appliance 1.

Of course, when the power supply of the detectingchip 330 is a safe power supply, the transmittingconductor 410 and the receivingconductor 510 may also be in direct contact, and the signal transmission may also be realized.

Advantageously, as shown in fig. 3, the end face of the transmittinginsulator 420 facing the end of the receivinginsulator 520 and the end face of the receivinginsulator 520 facing the first end of the transmittinginsulator 420 are both oriented in the vertical direction. Therefore, the liquid can be prevented from remaining on the transmittinginsulator 420 and the receivinginsulator 520, the liquid can be prevented from remaining between the transmittinginsulator 420 and the receivinginsulator 520 when the transmittinginsulator 420 and the receivinginsulator 520 are in contact, the interference of the remaining liquid to the detection signal can be prevented, and the detection reliability can be further improved.

Alternatively, as shown in fig. 4, the overfillprevention detection probe 301 comprises a conductive body 310 and an insulator 320. Electrical conductor 310 is connected to signal emittingdevice 400. The insulator 320 at least covers the side surface and/or the lower surface of the conductor 310, the side surface and/or the lower surface of the insulator 320 form a detection surface 321, the capacitance value of the conductor 310 changes with the change of the medium contacted by the detection surface 321, and when thepot lid 10 is located at the closed position, thesignal transmitting device 400 contacts thesignal receiving device 500 so that the capacitance detection chip generates a detection signal by detecting the change of the capacitance value of the conductor 310. It should be understood that thesignal transmitting device 400 and thesignal receiving device 500 may be in direct contact via respective conductor portions to achieve electrical connection and may also be in contact via an insulator to transfer signals via capacitance induction. In this way, the detection surface can be formed by the insulator 320, so that the capacitance value of the conductor 310 can be changed when the liquid contacts the insulator 320, and thedetection chip 330 can generate a detection signal by detecting the change amount of the capacitance value of the conductor 310, thereby realizing the anti-overflow detection function of thecooking appliance 1.

In other embodiments of the present invention, thedetection chip 330 is a voltage detection chip, the resistance value of theanti-overflow detection probe 301 changes with the change of the contact medium of the lower surface and/or the side surface of theanti-overflow detection probe 301, and when thepot cover 10 is located at the closed position, thesignal transmitting device 400 is electrically connected to thesignal receiving device 500 so that thedetection chip 330 detects the change of the resistance value thereof according to the change of the voltage value of theanti-overflow detection probe 301 to generate the detection signal. In this way, the voltage value of theanti-overflow detection probe 301 can be detected to reflect the change of the resistance value of theanti-overflow detection probe 301, so as to detect the liquid, and the anti-overflow detection function of thecooking appliance 1 can be realized.

Specifically, the anti-overflow detectingprobe 301 includes two conductive bodies 310, and when thepot cover 10 is located at the closed position, thesignal transmitting device 400 is electrically connected to thesignal receiving device 500, so that the two conductive bodies 310 are respectively conducted with the voltage detecting chip. This allows the detection of the liquid by detecting the voltage values of the two electrical conductors 310.

Specifically, as shown in fig. 1 to 3, thecooking appliance 1 further includes atransmission connector 600, and thetransmission connector 600 is connected to thesignal transmitting device 400 and thedetection chip 330, respectively. This may facilitate the connection of thesignal transmission device 400 and thedetection chip 330.

Other constructions and operations of thecooking appliance 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (9)

1. A cooking appliance, comprising:

a pan body;

a cover movably disposed on the pot body between an open position to open the pot body and a closed position to close the pot body;

the anti-overflow detection probe is arranged on the pot cover, and the detection value of the anti-overflow detection probe changes along with the change of the contact medium of the lower surface and/or the side surface of the anti-overflow detection probe;

the detection chip is arranged on the pot body;

the signal transmitting device is arranged on the pot cover and is connected with the anti-overflow detection probe;

signal receiving device, signal receiving device establishes on the pot body and with it links to each other to detect the chip, the pot cover is located during the open position, signal emission device with signal receiving device disconnection, the pot cover is located during the closed position, signal emission device with the contact of signal receiving device is so that it is through detecting to detect the chip the detection value variation volume of anti-overflow detecting probe generates the detected signal, signal emission device include with the transmitting conductor that anti-overflow detecting probe links to each other, signal receiving device include with the receiving conductor that detects the chip and link to each other, the pot cover is located during the closed position, transmitting conductor with receiving conductor electricity is connected in order to switch on detecting chip with anti-overflow detecting probe, the pot cover is located during the closed position, transmitting conductor orientation the terminal surface of the one end of receiving conductor with receiving conductor orientation the end of the one end of transmitting conductor The faces are all oriented in the vertical direction.

2. The cooking appliance according to claim 1, wherein the detection chip is a capacitance detection chip, the capacitance value of the anti-overflow detection probe changes with the change of the contact medium of the lower surface and/or the side surface of the anti-overflow detection probe, and when the lid is located at the closed position, the signal transmitting device contacts the signal receiving device so that the capacitance detection chip generates a detection signal by detecting the change of the capacitance value of the anti-overflow detection probe.

3. The cooking appliance of claim 2, wherein the signal receiving means comprises a receiving conductor connected to the detection chip and a receiving insulator covering the receiving conductor, the receiving insulator contacting the signal emitting means when the lid is in the closed position.

4. The cooking appliance of claim 3, wherein the signal emitting means comprises an emitting conductor connected to the detecting chip and an emitting insulator covering the emitting conductor, wherein the emitting insulator and the receiving insulator are in contact when the lid is in the closed position.

5. The cooking appliance of claim 4, wherein an end surface of the transmitting insulator facing the end of the receiving insulator and an end surface of the receiving insulator facing the first end of the transmitting insulator are each oriented in a vertical direction.

6. The cooking appliance of claim 2, wherein the overflow prevention detection probe comprises:

the electric conductor is connected with the signal transmitting device;

the insulating body at least covers the side surface and/or the lower surface of the conductive body, the side surface and/or the lower surface of the insulating body form a detection surface, the capacitance value of the conductive body changes along with the change of a contact medium of the detection surface, and when the pot cover is positioned at the closing position, the signal transmitting device is in contact with the signal receiving device so that the capacitance detection chip generates a detection signal by detecting the change of the capacitance value of the conductive body.

7. The cooking utensil of claim 1, wherein the detection chip is a voltage detection chip, the resistance value of the anti-overflow detection probe changes with the change of the contact medium of the lower surface and/or the side surface of the anti-overflow detection probe, and when the lid is located at the closed position, the signal transmitting device is electrically connected with the signal receiving device so that the detection chip detects the resistance value change amount of the anti-overflow detection probe according to the voltage value change amount of the anti-overflow detection probe to generate a detection signal.

8. The cooking appliance according to claim 7, wherein the overflow preventing probe comprises two electrical conductors, and when the lid is in the closed position, the signal transmitting device is electrically connected to the signal receiving device so that the two electrical conductors are respectively conducted to the voltage detecting chip.

9. The cooking appliance according to claim 1, further comprising a transmission connector respectively connected to the signal emitting device and the detection chip.

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