CN210124592U - Cooking utensil - Google Patents

Abstract

The utility model provides a cooking utensil, include: the cooker body is provided with an assembly hole and a conductive piece, and the top end of the conductive piece is positioned in the assembly hole and is more than or equal to a preset distance away from the top opening of the assembly hole; interior pot sets up in a kind of deep pot body, and interior pot includes: the electric cooking pot comprises an inner pot body with a cooking cavity, an electric heating film arranged at the bottom of the outer wall of the inner pot body and an electrode contact point electrically connected with the electric heating film; and the control device is electrically connected with the conductive piece, and under the condition that the inner pot is arranged in the pot body, at least part of the electrode contact points can extend into the assembly hole and abut against the conductive piece to form a power-on loop. Use the technical scheme of the utility model cooking utensil's among the correlation technique relatively poor problem of security can be solved effectively.

Description

Cooking utensil

Technical Field

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

Background

In the related art, the electric pressure cooker can be heated by an electric heating film heating mode besides two heating modes of heating by an electric heating disc and heating by an IH (induction heating) mode. Specifically, an electric heating film is arranged on the inner container, and electrodes of the electric heating film are connected with a power panel through a conductive structure so as to achieve the heating purpose. The inner container can be directly heated by the electric heating film to achieve the effect of rapid heating, and cooking efficiency is improved. However, in the related art, at least part of the conductive structure is exposed, so that the contact risk and the safety are poor when the conductive structure is used by a user.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a cooking device to solve the problem of poor safety of the cooking device in the related art.

In order to achieve the above object, the present invention provides a cooking appliance, comprising: the cooker body is provided with an assembly hole and a conductive piece, and the top end of the conductive piece is positioned in the assembly hole and is more than or equal to a preset distance away from the top opening of the assembly hole; interior pot sets up in a kind of deep pot body, and interior pot includes: the electric cooking pot comprises an inner pot body with a cooking cavity, an electric heating film arranged at the bottom of the outer wall of the inner pot body and an electrode contact point electrically connected with the electric heating film; and the control device is electrically connected with the conductive piece, and under the condition that the inner pot is arranged in the pot body, at least part of the electrode contact points can extend into the assembly hole and abut against the conductive piece to form a power-on loop.

Alternatively, the conductive member may be floatingly disposed.

Optionally, the pot body comprises a pot body and a middle plate arranged at the top of the pot body, and the assembling hole is arranged in the middle plate.

Optionally, an elastic member is disposed on the middle plate, and the elastic member abuts between the conductive member and the middle plate.

Optionally, the middle plate includes a middle plate body and a first cover body, the assembly hole is disposed in the middle plate body, the bottom of the assembly hole is covered by the first cover body, the conductive member includes a cylinder and a stop structure disposed on the cylinder, the elastic member is a spring sleeved on the cylinder, a first end of the spring abuts against a lower surface of the stop structure, and a second end of the spring abuts against an upper surface of the first cover body.

Optionally, the assembly hole includes a first hole section located on the upper portion and a second hole section located on the lower portion, the diameter of the first hole section is smaller than that of the second hole section, the top end of the column body is located in the first hole section, and under the condition that the inner pot is not mounted in the pot body, the stop structure abuts against the connection surface of the first hole section and the second hole section.

Optionally, the middle plate includes a middle plate body and a first cover body, the assembly hole is disposed in the middle plate body, the bottom of the assembly hole is covered by the first cover body, the conductive piece is electrically connected to the control device through a wire, a first avoiding hole is disposed on the first cover body, and a end portion of the conductive piece connected to the wire can be penetrated out through the first avoiding hole.

Optionally, the inner pot further comprises a handle structure arranged on the upper portion of the inner pot body and an electrode contact element arranged on the handle structure, the electrode contact element is electrically connected with the electric heating film, at least part of the electrode contact element protrudes out of the handle structure, and an electrode contact point is formed at the end portion of the electrode contact element protruding out of the handle structure.

Optionally, the handle structure includes an upper handle and a second cover body disposed at the bottom of the upper handle, an accommodating space is provided between the upper handle and the second cover body, a second avoiding hole is disposed on the second cover body, the electrode contact is disposed in the accommodating space, and the electrode contact is penetrated out through the second avoiding hole.

Optionally, the inner pan body comprises an outwardly extending pan rim, and the electrode contact is disposed on a lower surface of the pan rim.

Optionally, the inner pot comprises an electrode strip arranged on the outer wall of the inner pot body, and the electrode strip is connected between the electric heating film and the electrode contact point.

Optionally, the inner pot further comprises a first insulating layer sprayed between the outer wall of the inner pot body and the electric heating film and the electrode belt and a second insulating layer sprayed outside the electric heating film and the electrode belt.

Optionally, the conductive member may be floatingly disposed, the pot body includes a pot body and a middle plate disposed at the top of the pot body, the assembling hole is disposed in the middle plate, an elastic member is disposed on the middle plate, the elastic member abuts between the conductive member and the middle plate, the middle plate includes a middle plate body and a first cover body, the assembling hole is disposed in the middle plate body, the first cover body covers the bottom of the assembling hole, the conductive member includes a cylinder and a stop structure disposed on the cylinder, the elastic member is a spring sleeved on the cylinder, a first end of the spring abuts against a lower surface of the stop structure, a second end of the spring abuts against an upper surface of the first cover body, the assembling hole includes a first hole section located at an upper portion and a second hole section located at a lower portion, a diameter of the first hole section is smaller than a diameter of the second hole section, a top end of the cylinder is located in the first hole section, in case that the inner pot is not disposed in the pot body, the middle plate comprises a middle plate body and a first cover body, the assembly hole is arranged on the middle plate body, the first cover body is arranged at the bottom of the assembly hole in a covering manner, the conductive piece is electrically connected with the control device through a lead, a first avoidance hole is arranged on the first cover body, the end part of the conductive piece connected with the lead can penetrate out of the first avoidance hole, the inner pot also comprises a handle structure arranged at the upper part of the inner pot body and an electrode contact piece arranged on the handle structure, the electrode contact piece is electrically connected with the electrothermal film, at least part of the electrode contact piece protrudes out of the handle structure, the end part of the electrode contact piece protruding out of the handle structure forms an electrode contact point, the handle structure comprises an upper handle and a second cover body arranged at the bottom of the upper handle, an accommodating space is arranged between the upper handle and the second cover body, a second avoidance hole is arranged on the second cover body, the electrode contact piece, or the inner pot body comprises a pot edge extending outwards, the electrode contact point is arranged on the lower surface of the pot edge, and the inner pot comprises an electrode belt arranged on the outer wall of the inner pot body; the electrode band is connected between the electric heating film and the electrode contact point, and the inner pot further comprises a first insulating layer sprayed between the outer wall of the inner pot body and the electric heating film and the electrode band and a second insulating layer sprayed outside the electric heating film and the electrode band.

Use the technical scheme of the utility model, the top of electrically conductive piece be located the pilot hole and with the distance more than or equal to predetermined distance between the open-top of pilot hole. After the inner pot is prevented from being taken up by the structure, the conductive piece electrically connected with the control device is exposed, so that the risk of contact between a user and the charged conductive piece is reduced, and the safety of the cooking utensil is improved.

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 perspective view of a first embodiment of a cooking appliance according to the present invention;

fig. 2 shows a longitudinal sectional view of the cooking appliance of fig. 1;

FIG. 3 illustrates a partially enlarged schematic structural view of the cooking appliance of FIG. 2;

FIG. 4 illustrates an exploded view of the cooking appliance of FIG. 1;

fig. 5 shows a schematic perspective view of an inner pan of the cooking appliance of fig. 1;

FIG. 6 is a schematic view of the inner pot of FIG. 5 shown exploded with the handle removed; and

fig. 7 shows a schematic perspective view of an inner pot according to a second embodiment of the cooking appliance of the present invention.

Wherein the figures include the following reference numerals:

1. a cooking cavity; 10. a pot body; 11. a pot body; 12. a middle plate; 121. an assembly hole; 122. a middle plate body; 123. a first cover body; 124. a first bore section; 125. a second bore section; 126. a connecting surface; 127. a first avoidance hole; 20. a conductive member; 21. a top end; 22. a cylinder; 23. a stop structure; 30. an inner pot; 31. an inner pot body; 311. a pan edge; 32. an electrothermal film; 33. an electrode contact point; 34. a handle structure; 341. a handle; 342. a second cover body; 343. a second avoidance hole; 35. an electrode contact; 36. an electrode belt; 40. an elastic member; 50. and (4) conducting wires.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 6, a cooking appliance of the first embodiment includes: a pot body 10, an inner pot 30 and a control device. Wherein, the pot body 10 is provided with a fitting hole 121 and a conductive piece 20, and the top end 21 of the conductive piece 20 is positioned in the fitting hole 121 and is spaced from the top opening of the fitting hole 121 by a distance greater than or equal to a predetermined distance. The inner pot 30 is disposed in the pot body 10, and the inner pot 30 includes: an inner pot body 31 having a cooking cavity 1, an electric heating film 32 disposed at the bottom of the outer wall of the inner pot body 31, and an electrode contact point 33 electrically connected with the electric heating film 32. The control means is electrically connected to the conductive member 20, and in the case where the inner pot 30 is contained in the pot body 10, at least a part of the electrode contact point 33 can be inserted into the fitting hole 121 and abut against the conductive member 20 to constitute a current-carrying circuit.

With the technical solution of the first embodiment, the top end 21 of the conductive member 20 is located in the assembly hole 121 and is spaced from the top opening of the assembly hole 121 by a distance greater than or equal to a predetermined distance. The above structure prevents the conductive member 20 electrically connected to the control device from being exposed after the inner pot 30 is taken up, thereby reducing the risk of the user contacting the charged conductive member 20 and further improving the safety of the cooking appliance.

Specifically, after the inner pot 30 is placed in the pot body 10, the electrode contact point 33 of the inner pot 30 can extend into the fitting hole 121 and abut against the top end 21 of the conductive member 20. At this time, the electrothermal film 32, the electrode contact point 33, the conductive member 20 and the control device are electrically connected to form a power-on loop, and finally, the heating purpose is achieved. In order to avoid the electric shock risk which may occur when the user touches the electrically charged conductive member 20 if the cooking utensil is still in the working state after the inner pot 30 is taken out of the pot body 10, in the present embodiment, the user is prevented from touching the conductive member 20 by providing a predetermined distance between the top end 21 of the conductive member 20 and the top opening of the fitting hole 121, so as to reduce the risk of the user contacting the electrically charged conductive member 20.

Preferably, in the present embodiment, there are two fitting holes 121, two conductors 20 are provided corresponding to the fitting holes 121, two electrode contacts 33 are provided corresponding to the conductors 20, the control device is electrically connected to both the conductors 20, and in the case that the inner pot 30 is installed in the pot body 10, the two electrode contacts 33 can respectively extend into the fitting holes 121 corresponding thereto and abut against the conductors 20 corresponding to the fitting holes 121 to constitute an energizing circuit. Of course, in other embodiments not shown in the drawings, the number of the electrode contacts 33 and the assembly holes 121 of the conductive members 20 are the same, and are two or more.

Preferably, in the first embodiment, the predetermined distance is between 1mm and 8 mm. If the predetermined distance is less than 1mm, the distance between the top end 21 of the conductive member 20 and the opening of the top end of the fitting hole 121 is too close, so that the user may still touch it carelessly. If the predetermined distance is more than 8mm, the pot body 10 having the fitting hole 121 is locally excessively thick, high in cost and not easily molded.

As shown in fig. 3 and 4, in the first embodiment, the conductive member 20 may be floatingly disposed. The structure can ensure that the electrode contact point 33 is abutted against the conductive piece 20, the length requirement of the electrode contact point 33 stretching into the assembly hole 121 is low, and the processing and the assembly are convenient.

As shown in fig. 2 to 4, in the first embodiment, the pot body 10 includes a pot body 11 and a middle plate 12 disposed at the top of the pot body 11, and the fitting hole 121 is disposed at the middle plate 12. The middle plate 12 is provided with an elastic member 40, and the elastic member 40 abuts between the conductive member 20 and the middle plate 12. The structure is simple and easy to realize.

As shown in fig. 2 to 4, in the first embodiment, the middle plate 12 includes a middle plate body 122 and a first cover 123, the assembly hole 121 is disposed on the middle plate body 122, the first cover 123 covers the bottom of the assembly hole 121, the conductive member 20 includes a column 22 and a stop structure 23 disposed on the column 22, the elastic member 40 is a spring sleeved on the column 22, a first end of the spring abuts against a lower surface of the stop structure 23, and a second end of the spring abuts against an upper surface of the first cover 123. The structure is simple, and the assembly is convenient.

As shown in fig. 3 and 4, in the first embodiment, the fitting hole 121 includes a first hole section 124 at an upper portion and a second hole section 125 at a lower portion, the first hole section 124 has a smaller diameter than the second hole section 125, the top end 21 of the column 22 is located in the first hole section 124, and the stopper structure 23 abuts against the connecting surface 126 of the first hole section 124 and the second hole section 125 in the case where the inner pot 30 is not mounted in the pot body 10. The above-described structure makes the distance between the top end 21 of the cylinder 22 and the top opening of the fitting hole 121 equal to or greater than a predetermined distance in the case where the inner pot 30 is not contained in the pot body 10.

As shown in fig. 3 and 4, in the first embodiment, the middle plate 12 includes a middle plate body 122 and a first cover body 123, the assembly hole 121 is disposed on the middle plate body 122, the first cover body 123 covers the bottom of the assembly hole 121, the conductive member 20 is electrically connected to the control device through the wire 50, the first cover body 123 is disposed with a first avoiding hole 127, and an end portion of the conductive member 20 connected to the wire 50 can penetrate through the first avoiding hole 127. The structure is simple and easy to realize. In other embodiments not shown in the drawings, the conductive member 20 may be completely disposed in the assembly hole 121, and the first avoiding hole 127 is sized to fit the outer diameter of the conductive wire 50.

As shown in fig. 3 to 6, in the first embodiment, the inner pot 30 further includes a handle structure 34 disposed on the upper portion of the inner pot body 31 and an electrode contact 35 disposed on the handle structure 34, the electrode contact 35 is electrically connected to the electric heating film 32, at least a portion of the electrode contact 35 protrudes from the handle structure 34, and an electrode contact point 33 is formed at an end of the electrode contact 35 protruding from the handle structure 34. The above structure allows the electrode contact 35 to be hidden from the handle structure 34 as much as possible.

As shown in fig. 3 and 4, in the first embodiment, the handle structure 34 includes an upper handle 341 and a second cover 342 disposed at the bottom of the upper handle 341, an accommodating space is formed between the upper handle 341 and the second cover 342, a second avoiding hole 343 is disposed on the second cover 342, the electrode contact 35 is disposed in the accommodating space, and the electrode contact 33 passes through the second avoiding hole 343. The above structure allows the electrode contact 33 to be located at the bottom of the second cover 342, thereby making it difficult for a user to find the electrode contact 35.

As shown in fig. 4 to 6, in the first embodiment, the inner pot 30 includes an electrode band 36 disposed on the outer wall of the inner pot body 31, and the electrode band 36 is connected between the electrothermal film 32 and the electrode contact 33. The structure replaces the lead connected between the electric heating film and the electrode contact point in the related technology with the strip-shaped electrode belt 36, so that a double-layer inner pot is not needed (in the related technology, the lead connected between the electric heating film and the electrode contact point is positioned in the gap of the double-layer inner pot), and the production cost is reduced.

In the first embodiment, the inner pot 30 further includes a first insulating layer sprayed between the outer wall of the inner pot body 31 and the electric heating film 32 and the electrode band 36, and a second insulating layer sprayed outside the electric heating film 32 and the electrode band 36. The structure can improve the safety of the cooking utensil. Preferably, in this embodiment, the inner pot body 31 is a metal inner pot, after the outer surface of the inner pot body 31 is subjected to roughness treatment, a high temperature resistant insulating heat conducting coating, i.e., a first insulating layer (in which the main material is one or more of boron nitride, aluminum nitride, silicon nitride, etc.), a high temperature resistant semiconductor ceramic material, i.e., an electric heating film 32 (in which the main material is graphene, carbon nanotubes, silver, etc.), is sprayed, and a high temperature resistant insulating heat preserving coating, i.e., a second insulating layer (in which the main material is mica powder, hollow microspheres, etc.) is sprayed. The electrode belt 36 is arranged between the semiconductor ceramic material and the high-temperature-resistant insulating and heat-preserving coating (the main material is composite carbon and the like).

Preferably, in the first embodiment, the cooking appliance is an electric pressure cooker.

The cooking appliance of the second embodiment is different from the cooking appliance of the first embodiment in the specific structure of the inner pan, and specifically, as shown in fig. 7, in the second embodiment, the inner pan body 31 includes an outwardly extending pan rim 311, and the electrode contact point 33 is disposed on the lower surface of the pan rim 311. For the inner pot without a handle, the electrode contact 33 can be arranged on the lower surface of the pot edge 311, and when the inner pot is placed in the pot body, the electrode contact 33 on the lower part of the pot edge 311 can extend into the assembly hole 121 to realize conduction.

Preferably, in the second embodiment, the cooking appliance is an electric pressure cooker. Further preferably, in the second embodiment, the electric pressure cooker is an Contraband type electric pressure cooker.

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 (13)

1. A cooking appliance, comprising:

the cooker comprises a cooker body (10), wherein an assembly hole (121) and a conductive piece (20) are arranged on the cooker body (10), the top end (21) of the conductive piece (20) is positioned in the assembly hole (121), and the distance between the top end (21) of the conductive piece and the top opening of the assembly hole (121) is larger than or equal to a preset distance;

interior pot (30), set up in the cooker body (10), interior pot (30) includes: the electric cooking pot comprises an inner pot body (31) with a cooking cavity (1), an electric heating film (32) arranged at the bottom of the outer wall of the inner pot body (31) and an electrode contact point (33) electrically connected with the electric heating film (32);

a control device electrically connected to the conductive member (20),

under the condition that the inner pot (30) is arranged in the cooker body (10), at least part of the electrode contact point (33) can extend into the assembly hole (121) and is abutted with the conductive piece (20) to form a power-on loop.

2. Cooking appliance according to claim 1, characterized in that the electrically conductive member (20) is floatably arranged.

3. The cooking appliance according to claim 1, wherein the pot body (10) comprises a pot body (11) and a middle plate (12) provided at the top of the pot body (11), the fitting hole (121) being provided at the middle plate (12).

4. The cooking appliance according to claim 3, wherein an elastic member (40) is provided on the middle plate (12), the elastic member (40) abutting between the conductive member (20) and the middle plate (12).

5. The cooking appliance according to claim 4, wherein the middle plate (12) includes a middle plate body (122) and a first cover body (123), the assembly hole (121) is disposed on the middle plate body (122), the first cover body (123) covers a bottom of the assembly hole (121), the conductive member (20) includes a cylinder (22) and a stop structure (23) disposed on the cylinder (22), the elastic member (40) is a spring sleeved on the cylinder (22), a first end of the spring abuts against a lower surface of the stop structure (23), and a second end of the spring abuts against an upper surface of the first cover body (123).

6. The cooking appliance according to claim 5, wherein the fitting hole (121) comprises a first hole section (124) at an upper portion and a second hole section (125) at a lower portion, the first hole section (124) has a smaller diameter than the second hole section (125), the top end (21) of the cylinder (22) is located in the first hole section (124), and the stopper structure (23) abuts against the connecting faces (126) of the first hole section (124) and the second hole section (125) in a state that the inner pot (30) is not contained in the pot body (10).

7. The cooking appliance according to claim 3, wherein the middle plate (12) comprises a middle plate body (122) and a first cover body (123), the assembly hole (121) is disposed in the middle plate body (122), the first cover body (123) is disposed at the bottom of the assembly hole (121), the conductive member (20) is electrically connected to the control device through a wire (50), the first cover body (123) is provided with a first avoiding hole (127), and an end portion of the conductive member (20) connected to the wire (50) can pass through the first avoiding hole (127).

8. The cooking appliance according to claim 1, wherein the inner pan (30) further comprises a handle structure (34) disposed at an upper portion of the inner pan body (31) and an electrode contact (35) disposed at the handle structure (34), the electrode contact (35) being electrically connected to the electrothermal film (32), at least a portion of the electrode contact (35) protruding from the handle structure (34), an end of the electrode contact (35) protruding from the handle structure (34) forming the electrode contact point (33).

9. The cooking appliance according to claim 8, wherein the handle structure (34) comprises an upper handle (341) and a second cover body (342) disposed at a bottom of the upper handle (341), a receiving space is provided between the upper handle (341) and the second cover body (342), a second escape hole (343) is disposed on the second cover body (342), the electrode contact (35) is disposed in the receiving space, and the electrode contact point (33) is penetrated through the second escape hole (343).

10. The cooking appliance according to claim 1, wherein the inner pot body (31) comprises an outwardly extending pot rim (311), the electrode contact point (33) being provided at a lower surface of the pot rim (311).

11. The cooking appliance according to claim 1, wherein the inner pot (30) comprises an electrode band (36) disposed on an outer wall of the inner pot body (31), the electrode band (36) being connected between the electric heating film (32) and the electrode contact point (33).

12. The cooking appliance according to claim 11, wherein the inner pan (30) further comprises a first insulating layer sprayed between the outer wall of the inner pan body (31) and the electric heating film (32) and the electrode band (36) and a second insulating layer sprayed outside the electric heating film (32) and the electrode band (36).

13. The cooking appliance according to claim 1, wherein the conductive member (20) is floatingly disposed, the pot body (10) comprises a pot body (11) and a middle plate (12) disposed at the top of the pot body (11), the fitting hole (121) is disposed on the middle plate (12), an elastic member (40) is disposed on the middle plate (12), the elastic member (40) abuts between the conductive member (20) and the middle plate (12), the middle plate (12) comprises a middle plate body (122) and a first cover body (123), the fitting hole (121) is disposed on the middle plate body (122), the first cover body (123) covers the bottom of the fitting hole (121), the conductive member (20) comprises a cylinder (22) and a stopping structure (23) disposed on the cylinder (22), the elastic member (40) is a spring sleeved on the cylinder (22), a first end of the spring abuts against a lower surface of the stopping structure (23), a second end of the spring abuts against an upper surface of the first cover body (123), the assembly hole (121) comprises a first hole section (124) located at the upper part and a second hole section (125) located at the lower part, the diameter of the first hole section (124) is smaller than that of the second hole section (125), the top end (21) of the column body (22) is located in the first hole section (124), under the condition that the inner pot (30) is not arranged in the pot body (10), the stopping structure (23) abuts against a connecting surface (126) of the first hole section (124) and the second hole section (125), the middle plate (12) comprises a middle plate body (122) and a first cover body (123), the assembly hole (121) is arranged in the middle plate body (122), and the first cover body (123) covers the bottom of the assembly hole (121), the electric cooker comprises a conductive piece (20), a control device, a first cover body (123), a first avoidance hole (127), a handle structure (34) and an electrode contact piece (35), wherein the conductive piece (20) is electrically connected with the control device through a lead (50), the end part of the conductive piece (20) connected with the lead (50) can penetrate out of the first avoidance hole (127), the inner cooker (30) further comprises the handle structure (34) arranged at the upper part of the inner cooker body (31) and the electrode contact piece (35) arranged on the handle structure (34), the electrode contact piece (35) is electrically connected with the electric heating film (32), at least part of the electrode contact piece (35) protrudes out of the handle structure (34), the end part of the electrode contact piece (35) protruding out of the handle structure (34) forms the electrode contact point (33), and the handle structure (34) comprises an upper handle (341) and a second cover body (342) arranged at the bottom of the upper handle (341), an accommodating space is formed between the upper handle (341) and the second cover body (342), a second avoiding hole (343) is formed in the second cover body (342), the electrode contact piece (35) is arranged in the accommodating space, and the electrode contact point (33) penetrates out of the second avoiding hole (343), or the inner pot body (31) comprises an outwardly extending pot edge (311), the electrode contact point (33) is arranged on the lower surface of the pot edge (311), and the inner pot (30) comprises an electrode belt (36) arranged on the outer wall of the inner pot body (31); the electrode belt (36) is connected between the electric heating film (32) and the electrode contact point (33), the inner pot (30) further comprises a first insulating layer sprayed on the outer wall of the inner pot body (31), the electric heating film (32) and the electrode belt (36) and a second insulating layer sprayed on the outer side of the electric heating film (32) and the electrode belt (36).

Images