CN209966111U - Cooking utensil - Google Patents

Abstract

The utility model provides a cooking utensil, include: the pot body comprises an inner pot and an electrothermal film arranged outside the inner pot; the pot cover is covered on the pot body; the conduction mechanism comprises a switch piece and a trigger piece matched with the switch piece, one of the switch piece and the trigger piece is arranged on the cooker cover, and the other one of the switch piece and the trigger piece is arranged on the cooker body; the heating circuit is provided with the electrothermal film; wherein, under the condition that the pot lid was established on the pot body, trigger piece triggered switch spare, and switch spare triggers to switch on the signal and makes heating circuit switch on, and the electric heat membrane can the circular telegram generate heat. The technical scheme of this application has effectively solved the insulating layer of the electric heat membrane among the correlation technique and has had the dangerous problem of electrocute when damaged.

Description

Cooking utensil

Technical Field

The utility model relates to a small household electrical appliances technical field particularly, relates to a cooking utensil.

Background

The electric pressure cooker is a well-known small kitchen appliance, and can select different cooking pressures aiming at different food materials due to the large adjustable range of the pressure of the electric pressure cooker, so that the nutritional ingredients and the delicacies of different foods are stimulated to the greatest extent, and the electric pressure cooker is popular with consumers.

In the related art, a heating device is an important component of an electric pressure cooker. Wherein, the electric pressure cooker needs to adopt different structures according to different heating modes. The electric pressure cooker generally uses two types of heating by an electric heating plate and electromagnetic heating (or IH heating). The electric heating plate has lower heating power, and electromagnetic heating (or IH heating) has certain requirements on the inner pot and has respective limitations. Therefore, the electric heating film heating is adopted in the related technology, and has the advantages of high speed, high heating efficiency, no special requirement on the pan and the like.

However, adopt the electric heat membrane heating, directly cover the electric heat membrane on interior pot, the electric heat membrane has two electrodes circular telegrams, under the circular telegram condition, if the insulating layer of electric heat membrane is damaged, the user touches interior pot this moment, can have the danger of electrocuteeing.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a cooking device to solve the problem of electric shock hazard when the insulating layer of the electric heating film in the related art is damaged.

In order to achieve the above object, the present invention provides a cooking appliance, comprising: the pot body comprises an inner pot and an electrothermal film arranged outside the inner pot; the pot cover is covered on the pot body; the conduction mechanism comprises a switch piece and a trigger piece matched with the switch piece, one of the switch piece and the trigger piece is arranged on the cooker cover, and the other one of the switch piece and the trigger piece is arranged on the cooker body; the heating circuit is provided with the electrothermal film; wherein, under the condition that the pot lid was established on the pot body, trigger piece triggered switch spare, and switch spare triggers to switch on the signal and makes heating circuit switch on, and the electric heat membrane can the circular telegram generate heat.

Use the technical scheme of the utility model, under the condition that the pot cover lid was established on the pot body, trigger a trigger switch spare, switch spare triggers the turn-on signal and makes heating circuit switch on, and the electric heat membrane can switch on and generate heat. Like this, even the insulating layer of electric heat membrane appears damaged, just can the circular telegram because the electric heat membrane was established on the pot body to the pot lid, the user can't touch the inside structure of interior pot or pot lid this moment, and then has avoided the problem of electrocuteeing. Therefore, the technical scheme of this application has effectively solved the insulating layer of the electric heat membrane among the correlation technique and has electrocute dangerous problem when damaged.

Further, the switch setting is in the inside of pot cover, and the setting of trigger piece is provided with the mounting hole on the pot body on the pot cover, trigger piece including the impeller and with impeller complex push rod, the movably dress of wearing to establish in the mounting hole of push rod, the impeller passes through push rod trigger switch spare. The push rod enables the push member to contact the switch member.

Furthermore, the conduction mechanism further comprises an elastic part sleeved on the push rod, a step surface is arranged on the push rod, and the elastic part is located between the pot cover and the step surface. The elastic piece can increase the resistance between the push rod and the switch piece and slow down the impact of the push rod on the switch piece.

Further, the pot cover includes the face lid and sets up the inside lining in face lid below, and the switch setting is on the inside lining, and the mounting hole is including setting up the first mounting hole on the inside lining. The above structure facilitates the insertion of the pusher into the liner.

Further, the pot cover further comprises a fixing plate, the switch piece is arranged on the lining through the fixing plate, the mounting hole further comprises a second mounting hole formed in the fixing plate, and the second mounting hole is communicated with the first mounting hole. The structure is convenient for the push rod to smoothly move up and down in the mounting hole.

Furthermore, the fixed plate comprises a plate body and a supporting boss arranged on the plate body, and the switch piece is arranged on the supporting boss. The supporting boss is convenient for the fixed plate to support the switch piece.

Furthermore, be provided with the spliced pole on the support boss, be provided with first through-hole on the switch spare, the spliced pole is worn to establish in first through-hole in order to fix a position the switch spare on supporting the boss, is provided with the second through-hole on the plate body, and the conduction mechanism is still including setting up the anticreep piece in the first end of push rod, is provided with the third through-hole on the first end of push rod, and the third through-hole is passed to part of anticreep piece, and the anticreep piece is located the one side that the elastic component was kept away from to the fixed. The anti-falling piece can prevent the push rod from falling off the fixing plate.

Further, the trigger piece comprises a pushing piece, the switch piece is arranged in the cooker cover, the pushing piece is arranged on the cooker body, and the pushing piece triggers the switch piece. The above-mentioned push piece can still realize the trigger switch piece.

Further, the switch piece is a microswitch, the cooking utensil further comprises a controller, the controller is connected with the microswitch and the heating circuit, the pushing piece triggers the microswitch under the condition that the pot cover is arranged on the pot body, the microswitch sends a conducting signal to the controller, and the controller controls the heating circuit to be conducted. The structure is convenient for controlling the heating circuit.

Further, the pot body still includes the shell of setting in the interior pot outside and sets up the medium plate in the shell top, and the impeller setting is on the medium plate. The pushing piece is convenient to process on the middle plate and is also convenient to form.

Further, the pot body is provided with a first end and a second end which are opposite, the first end of the pot body is pivotally connected with the pot cover, and the conduction mechanism is arranged at the second end of the pot body. The structure can ensure that the switch piece in the conduction mechanism is triggered only under the condition that the pot cover is covered on the pot body, thereby avoiding electric shock of a user.

Furthermore, the cooking appliance is an electric pressure cooker or an electric rice cooker, the switch piece is arranged inside the cooker cover, the trigger piece is arranged on the cooker body, the cooker cover is provided with a mounting hole, the trigger piece comprises a pushing piece and a push rod matched with the pushing piece, the push rod is movably arranged in the mounting hole in a penetrating manner, and the pushing piece triggers the switch piece through the push rod; the conduction mechanism also comprises an elastic part sleeved on the push rod, a step surface is arranged on the push rod, and the elastic part is positioned between the pot cover and the step surface; the cooker cover comprises a face cover and an inner liner arranged below the face cover, the switch piece is arranged on the inner liner, and the mounting hole comprises a first mounting hole arranged on the inner liner; the cooker cover also comprises a fixing plate, the switch piece is arranged on the liner through the fixing plate, the mounting hole also comprises a second mounting hole arranged on the fixing plate, and the second mounting hole is communicated with the first mounting hole; the fixed plate comprises a plate body and a supporting boss arranged on the plate body, and the switch piece is arranged on the supporting boss; the support boss is provided with a connecting column, the switch piece is provided with a first through hole, the connecting column penetrates through the first through hole to position the switch piece on the support boss, the plate body is provided with a second through hole, the conduction mechanism further comprises an anti-falling piece arranged at the first end of the push rod, the first end of the push rod is provided with a third through hole, a part of the anti-falling piece penetrates through the third through hole, and the anti-falling piece is positioned on one side, away from the elastic piece, of the fixing plate; the cooking utensil further comprises a controller, the controller is connected with the micro switch and the heating circuit, the trigger piece triggers the micro switch under the condition that the pot cover is arranged on the pot body, the micro switch sends a conducting signal to the controller, and the controller controls the heating circuit to be conducted; the pot body also comprises a shell arranged outside the inner pot and a middle plate arranged above the shell, and the trigger piece is arranged on the middle plate; the pot body is provided with a first end and a second end which are opposite, the first end of the pot body is pivotally connected with the pot cover, and the conduction mechanism is arranged at the second end of the pot body.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic cross-sectional view of an embodiment of a cooking appliance according to the invention when closed;

fig. 2 shows an enlarged schematic view at a of the cooking appliance of fig. 1;

FIG. 3 shows a cross-sectional schematic view of a pot cover of the cooking appliance of FIG. 1;

fig. 4 shows an enlarged schematic view at B of the lid of the cooking appliance of fig. 3;

FIG. 5 is a schematic perspective view of a portion of the conduction mechanism of the cooking appliance of FIG. 1 mounted on an inner liner;

fig. 6 shows an enlarged schematic view at C of the cooking appliance of fig. 5;

FIG. 7 illustrates an exploded view of the inner liner and a portion of the conduction mechanism of the cooking appliance of FIG. 5; and

fig. 8 shows a cross-sectional schematic view of another angle of the cooking appliance of fig. 1.

Wherein the figures include the following reference numerals:

10. a pan body; 11. an inner pot; 12. an electrothermal film; 13. a housing; 14. a middle plate; 15. a fixing plate; 151. a plate body; 152. supporting the boss; 16. a handle; 20. a pot cover; 21. mounting holes; 211. a first mounting hole; 212. a second mounting hole; 22. a liner; 23. a face cover; 30. a conduction mechanism; 31. a switch member; 32. a pusher member; 33. an elastic member; 34. a push rod; 35. a step surface; 36. a drop-off prevention member; 40. a conductive rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 1, 2 and 5, the cooking appliance of the present embodiment includes a pot body 10, a pot cover 20, a conduction mechanism 30 and a heating circuit. The pot body 10 comprises an inner pot 11 and an electric heating film 12 arranged outside the inner pot 11. The pot cover 20 is covered on the pot body 10. The conducting mechanism 30 comprises a switch member 31 and a trigger member cooperating with the switch member 31, the switch member 31 is disposed on the pot cover 20, and the trigger member is disposed on the pot body 10. The electric heating film 12 is disposed in the heating circuit. Wherein, under the condition that the pot cover 20 is covered on the pot body 10, the trigger piece triggers the switch piece 31, the switch piece 31 triggers the conduction signal to conduct the heating circuit, and the electric heating film 12 can be electrified to generate heat.

By applying the technical scheme of the embodiment, under the condition that the pot cover 20 covers the pot body 10, the trigger piece triggers the switch piece 31, the switch piece 31 triggers the conduction signal to conduct the heating circuit, and the electric heating film 12 can be electrified to generate heat. Like this, even the insulating layer of electric heat membrane 12 appears damaged, just can the circular telegram because electric heat membrane 12 was established on the pot body 10 to the lid 20 lid, the user can't touch interior pot or the inside structure of pot cover this moment, and then has avoided the problem of electrocuteeing. Therefore, the technical scheme of this embodiment has effectively solved the problem that has the danger of electrocuteeing when the insulating layer of the electric heat membrane among the correlation technique is damaged.

The mode of electric heat membrane heating that adopts in this implementation, the electric heat membrane is for the electric heating layer that adheres to in pot body outside, as long as can realize the structure of heating function all can. Compare in the heating methods of electric hot tray, the laminating of electric heat membrane and interior pot body is inseparabler, and heating power is higher, rate of heating is faster. Compared with other heating modes, such as electromagnetic heating (or IH heating), the electric heating film heating mode has lower structural requirements on the inner pot, and only a heating circuit needs to be arranged to enable the electric heating film to be electrified and heated.

As shown in fig. 1, 2 and 5, in the present embodiment, the switch member 31 is disposed inside the pot cover 20, the trigger member is disposed on the pot body 10, and the pot cover 20 is provided with the mounting hole 21. The installation hole 21 is provided such that an escape space is formed inside the pot cover 20 to facilitate the contact of the push member 32 with the switch member 31. The trigger piece comprises a pushing piece 32 and a push rod 34 matched with the pushing piece 32, and the push rod 34 is movably arranged in the mounting hole 21 in a penetrating mode. Under the condition that the pot cover 20 is covered on the pot body 10, the push rod 34 is arranged to enable the pushing piece 32 to be in contact with the switch piece 31, so that the pushing piece 32 triggers the switch piece 31 through the push rod 34, and therefore the switch piece 31 can trigger a conducting signal to conduct a heating circuit. The pusher 32 in this embodiment is preferably a cylindrical structure.

As shown in fig. 3 to 5, the conducting mechanism 30 further includes an elastic member 33 sleeved on the push rod 34, the push rod 34 is provided with a step surface 35, and the elastic member 33 is located between the pot cover 20 and the step surface 35. In the case that the pot cover 20 is covered on the pot body 10, the elastic member 33 is provided to increase the resistance between the push rod 34 and the switch member 31, and to reduce the impact of the push rod 34 on the switch member 31. In addition, when the pot cover 20 is separated from the pot body 10, the push rod 34 can be separated from the switch member 31 by the elastic member 33 of the push rod 34, and thus, the push rod 34 can be separated from the switch member 31. The resilient member in this embodiment is preferably a spring.

As shown in fig. 3 to 5, the pot cover 20 includes a face cover 23 and an inner liner 22 disposed below the face cover 23, the switch 31 is disposed on the inner liner 22, and the mounting hole 21 includes a first mounting hole 211 disposed on the inner liner 22. In this way, the escape space on the liner 22 is fully utilized so that the pusher 32 can be inserted into the liner 22. Meanwhile, the whole structure of the pot cover 20 is compact, and the switch piece 31 is convenient to be matched with the pushing piece 32.

As shown in fig. 5 to 6, the pot cover 20 further includes a fixing plate 15, and the opening and closing member 31 is disposed on the inner liner 22 through the fixing plate 15. Since the surface of the liner 22 has an uneven shape, when the switch member 31 is directly disposed on the liner 22, the switch member 31 may be inclined with respect to the liner 22 to some extent so as not to be easily coupled. By arranging the fixing plate 15 on the inner liner 22, the contact surface between the switch member 31 and the inner liner 22 is flat, so that the switch member 31 can be stably fixed on the inner liner 22 for convenient connection. The mounting hole 21 further includes a second mounting hole 212 provided on the fixing plate 15, the second mounting hole 212 communicating with the first mounting hole 211. In this embodiment, the second mounting hole 212 is provided to facilitate the insertion of the push rod 34 through the liner 22 such that the push rod 34 can trigger the switch member 31. The first mounting hole 211 and the second mounting hole 212 are communicated together, so that the push rod 34 can smoothly move up and down in the mounting hole 21. In other embodiments not shown, the switch member may be attached to the liner by snapping, adhesive, ultrasonic welding.

As shown in fig. 5, in this embodiment, the inner liner 22 is provided with a mounting cavity, the mounting cavity has an opening on a side away from the inner pan 11, and the switch member 31 and the fixing plate 15 are both located in the mounting cavity, so that the switch member 31 does not protrude from the opening, and thus when other structures are assembled on the inner liner 22, the other structures do not touch the switch member 31, thereby protecting the switch member 31.

As shown in fig. 5 to 6, the fixing plate 15 includes a plate body 151 and a support boss 152 provided on the plate body 151, and the switch member 31 is provided on the support boss 152. The support bosses 152 are provided to facilitate the fixed plate 15 supporting the switching piece 31. The support boss 152 is provided with a connecting column, the switch piece 31 is provided with a first through hole, the connecting column penetrates through the first through hole to position the switch piece 31 on the support boss 152, the plate body 151 is provided with a second through hole, the lining 22 is provided with a stud corresponding to the second through hole, and the fixing plate 15 is fixed on the stud through the second through hole by the screw. Thus, the engagement of the screw and stud facilitates securing the switch member 31 to the liner 22.

The conduction mechanism 30 further includes an anti-separation member 36 disposed at the first end of the push rod 34, a third through hole is disposed at the first end of the push rod 34, a part of the anti-separation member 36 passes through the third through hole, the anti-separation member 36 is located on one side of the fixing plate 15 far away from the elastic member 33, and the anti-separation member 36 is disposed to prevent the push rod 34 from separating from the fixing plate 15. The release preventing member 36 is preferably a pin structure.

As shown in fig. 1, 7 and 8, in the present embodiment, the switch member 31 is a micro switch, and the cooking appliance further includes a controller, and the controller is connected to both the micro switch and the heating circuit. The heating circuit is a strong current circuit, the micro switch and the controller are arranged in a weak current circuit (also called as a control circuit), and the weak current circuit is connected with the heating circuit through a relay. The relay comprises four pins, two of the four pins are connected in the weak current circuit, and the other two pins are connected in the heating circuit. The wires at the two ends of the heating circuit are connected to the socket on the pot body 10, and the power cord through which the socket passes can be connected with the live wire and the zero wire of the alternating current outside the cooking utensil. Like this, outside alternating current switches on the back with heating circuit, and when trigger micro-gap switch, heating circuit switches on, and the electric heat membrane can the circular telegram generate heat.

Under the condition that the pot cover 20 is covered on the pot body 10, the trigger piece triggers the micro switch. Specifically, in the case that the pot cover 20 is covered on the pot body 10, the pushing member 32 can be pushed to move upward by the push rod 34, and the push rod 34 applies the force of the pushing member 32 to the micro switch, so that the micro switch is turned on. The micro switch sends a conduction signal to the controller, and the controller controls the conduction between two pins of the relay, which are connected with the heating circuit, so that the heating circuit is conducted. The controller is arranged to control the heating circuit in the cooking appliance.

When the controller does not receive the conduction signal sent by the microswitch, the controller controls the two pins of the relay, which are connected with the heating circuit, to be disconnected, and at the moment, the heating circuit is still in a disconnected state even though the two ends of the heating circuit are connected with the alternating current.

As shown in figures 1 and 8, the pan body 10 further comprises an outer shell 13 arranged outside the inner pan 11 and a middle plate 14 arranged above the outer shell 13, and the pushing member 32 is arranged on the middle plate 14 for processing and forming. The cooking appliance further comprises a conductive rod 40 and a chassis, the conductive rod 40 is positioned in the heating circuit, and the conductive rod 40 is obliquely arranged in the chassis relative to the horizontal plane. Under the condition that the pot cover 20 is covered on the pot body 10, the pushing piece 32 triggers the switch piece 31 through the push rod 34, and the switch piece 31 triggers the conducting signal to enable the conducting rod 40 to be in contact conduction with the contact on the electrothermal film 12, so that the electrothermal film 12 can be electrified to generate heat.

As shown in fig. 8, in order to facilitate the user to take the inner pot 11, the cooking appliance further includes a handle 16 provided on the inner pot 11.

As shown in fig. 1 and 7, the pot body 10 has opposite first and second ends, and the first end of the pot body 10 is pivotally connected to the lid 20. In the process that the pot cover 20 is covered on the pot body 10, the conducting mechanism 30 is arranged at the second end of the pot body 10, so that the switch piece 31 in the conducting mechanism 30 can be triggered only under the condition that the pot cover 20 is covered on the pot body 10, and the problem of electric shock of a user is avoided. The conducting mechanism 30 further comprises a pivot arranged at the first end of the pot body 10 and a torsion spring sleeved on the pivot, wherein a first torsion arm of the torsion spring is matched with the pot cover 20, and a second torsion arm of the torsion spring is matched with the pot body 10. The lid 20 can be opened or closed relative to the pot body 10 under the action of the torsion spring.

In other embodiments not shown in the figures, the triggering member comprises only a pushing member, the switching member is arranged inside the pot cover, the pushing member is arranged on the pot cover, and the pushing member directly triggers the switching member. Under the condition that the pot cover is covered on the pot body, the switch piece and the pushing piece are matched to still realize that the pushing piece triggers the switch piece, so that the switch piece triggers a conduction signal to conduct the heating circuit.

The electric heating film 12 preferably comprises an insulating heat-conducting coating, a semiconductor coating and a heat-insulating coating which are arranged in sequence, wherein the insulating heat-conducting coating is arranged on the surface of the inner pot 11.

When the inner pot 11 is manufactured and molded, after the outer surface of the inner pot 11 is subjected to rough treatment, a high-temperature-resistant insulating heat-conducting coating is firstly sprayed, then a high-temperature-resistant semiconductor ceramic material is silk-screened or sprayed, and then a high-temperature-resistant insulating coating is sprayed. The electrode is arranged between the semiconductor ceramic material and the high-temperature-resistant insulating and heat-preserving coating.

As shown in fig. 8, in the present embodiment, the cooking appliance is an electric pressure cooker, but in other embodiments not shown, the cooking appliance may also be an electric rice cooker, a low-pressure rice cooker, a soymilk maker, a food processor, an electric stewpan, or the like.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (11)

1. A cooking appliance, comprising:

the electric heating cooker comprises a cooker body (10) and a heating element, wherein the cooker body comprises an inner cooker (11) and an electric heating film (12) arranged on the outer side of the inner cooker (11);

the pot cover (20), the pot cover (20) is covered on the pot body (10);

the conduction mechanism (30) comprises a switch piece (31) and a trigger piece matched with the switch piece (31), one of the switch piece (31) and the trigger piece is arranged on the pot cover (20), and the other is arranged on the pot body (10);

a heating circuit in which the electrothermal film (12) is disposed;

under the condition that the pot cover (20) is covered on the pot body (10), the trigger piece triggers the switch piece (31), the switch piece (31) triggers a conduction signal to enable the heating circuit to be conducted, and the electric heating film (12) can be electrified to generate heat.

2. The cooking appliance according to claim 1, wherein the switch member (31) is arranged inside the pot cover (20), the trigger member is arranged on the pot body (10), a mounting hole (21) is arranged on the pot cover (20), the trigger member comprises a pushing member (32) and a push rod (34) matched with the pushing member (32), the push rod (34) is movably arranged in the mounting hole (21) in a penetrating way, and the pushing member (32) triggers the switch member (31) through the push rod (34).

3. The cooking appliance according to claim 2, wherein the conducting mechanism (30) further comprises an elastic member (33) sleeved on the push rod (34), the push rod (34) is provided with a step surface (35), and the elastic member (33) is located between the pot cover (20) and the step surface (35).

4. The cooking appliance according to claim 2, wherein the pot cover (20) comprises a face cover (23) and an inner liner (22) disposed below the face cover (23), the switch member (31) is disposed on the inner liner (22), and the mounting hole (21) comprises a first mounting hole (211) disposed on the inner liner (22).

5. The cooking appliance according to claim 4, wherein the pot cover (20) further comprises a fixing plate (15), the switching member (31) is provided on the inner liner (22) through the fixing plate (15), and the mounting hole (21) further comprises a second mounting hole (212) provided on the fixing plate (15), the second mounting hole (212) communicating with the first mounting hole (211).

6. The cooking appliance according to claim 5, wherein the fixing plate (15) comprises a plate body (151) and a support boss (152) provided on the plate body (151), the switch member (31) being provided on the support boss (152).

7. The cooking appliance according to claim 6, wherein the conduction mechanism (30) further comprises an elastic member (33), the support boss (152) is provided with a connection column, the switch member (31) is provided with a first through hole, the connection column is inserted into the first through hole to position the switch member (31) on the support boss (152), the plate body (151) is provided with a second through hole, the conduction mechanism (30) further comprises a release prevention member (36) arranged at the first end of the push rod (34), the first end of the push rod (34) is provided with a third through hole, a part of the release prevention member (36) passes through the third through hole, and the release prevention member (36) is positioned at a side of the fixing plate (15) far away from the elastic member (33).

8. The cooking appliance of claim 1, wherein the trigger member comprises a push member, the switch member is disposed inside the lid, the push member is disposed on the body, and the push member triggers the switch member.

9. The cooking appliance according to claim 1, wherein the switch member (31) is a microswitch, the cooking appliance further comprises a controller, the controller is connected with the microswitch and the heating circuit, wherein, when the pot cover (20) is covered on the pot body (10), the trigger member triggers the microswitch, the microswitch sends the conducting signal to the controller, and the controller controls the heating circuit to be conducted.

10. The cooking appliance according to claim 1, wherein the pot (10) has opposite first and second ends, the first end of the pot (10) being pivotally connected to the lid (20), the conducting mechanism (30) being arranged at the second end of the pot (10).

11. The cooking appliance according to claim 1, wherein the cooking appliance is an electric pressure cooker or an electric rice cooker, the switch member (31) is arranged inside the pot cover (20), the trigger member is arranged on the pot body (10), the pot cover (20) is provided with a mounting hole (21), the trigger member comprises a pushing member (32) and a push rod (34) matched with the pushing member (32), the push rod (34) is movably arranged in the mounting hole (21) in a penetrating way, and the pushing member (32) triggers the switch member (31) through the push rod (34); the conduction mechanism (30) further comprises an elastic piece (33) sleeved on the push rod (34), a step surface (35) is arranged on the push rod (34), and the elastic piece (33) is located between the pot cover (20) and the step surface (35); the pot cover (20) comprises a surface cover (23) and an inner liner (22) arranged below the surface cover (23), the switch piece (31) is arranged on the inner liner (22), and the mounting hole (21) comprises a first mounting hole (211) arranged on the inner liner (22); the pot cover (20) further comprises a fixing plate (15), the switch piece (31) is arranged on the inner liner (22) through the fixing plate (15), the mounting hole (21) further comprises a second mounting hole (212) arranged on the fixing plate (15), and the second mounting hole (212) is communicated with the first mounting hole (211); the fixing plate (15) comprises a plate body (151) and a supporting boss (152) arranged on the plate body (151), and the switch piece is arranged on the supporting boss (152); the switch mechanism comprises a support boss (152), a connecting column, a plate body (151) and a conducting mechanism (30), wherein the support boss (152) is provided with a connecting column, the switch piece (31) is provided with a first through hole, the connecting column penetrates through the first through hole to position the switch piece (31) on the support boss (152), the plate body (151) is provided with a second through hole, the conducting mechanism further comprises an anti-falling piece (36) arranged at the first end of a push rod (34), the first end of the push rod (34) is provided with a third through hole, a part of the anti-falling piece (36) penetrates through the third through hole, and the anti-falling piece (36) is positioned on one side, far away from the elastic piece (33), of the fixing plate (15); the switch piece (31) is a microswitch, the cooking utensil further comprises a controller, the controller is connected with the microswitch and the heating circuit, under the condition that the pot cover (20) is covered on the pot body (10), the trigger piece triggers the microswitch, the microswitch sends the conducting signal to the controller, and the controller controls the heating circuit to be conducted; the pot body (10) further comprises an outer shell (13) arranged on the outer side of the inner pot (11) and a middle plate (14) arranged above the outer shell (13), and the trigger piece is arranged on the middle plate (14); the pot body (10) is provided with a first end and a second end which are opposite, the first end of the pot body (10) is pivotally connected with the pot cover (20), and the conduction mechanism (30) is arranged at the second end of the pot body (10).

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