CN210748683U

CN210748683U - Power board subassembly and cooking utensil

Info

Publication number: CN210748683U
Application number: CN201921004676.2U
Authority: CN
Inventors: 丁金炬; 殷嘉忆
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-06-16
Anticipated expiration: 2029-06-28

Abstract

The utility model provides a power strip subassembly and cooking utensil, the power strip subassembly includes: a power panel support; the power panel is arranged on the power panel bracket; the radiating fin is arranged below the power panel and is arranged on one side of the power panel, which is far away from the power panel bracket; the fan assembly is arranged on the power panel bracket, corresponds to the radiating fins and is positioned below the radiating fins; the first wind shielding part is used for blocking the airflow passing through the radiating fin from flowing to the power panel. Through the technical scheme that this application provided, can solve the poor problem of radiating effect among the prior art.

Description

Power board subassembly and cooking utensil

Technical Field

The utility model relates to a cooking utensil technical field particularly, relates to a power strip subassembly and cooking utensil.

Background

At present, in an electric cooker heated by an electromagnetic method, an Insulated Gate Bipolar Transistor (IGBT) generates a large amount of heat during operation, and when the temperature of the IGBT is too high, the electric cooker stops operating. In order to cool down the IGBT, the IGBT is generally disposed on a heat sink, and the IGBT is cooled down by the heat sink and a fan.

However, in the prior art, after the cold airflow of the fan is blown to the heat sink to complete heat exchange and cooling of the heat sink, the hot airflow formed by heat exchange with the heat sink will continue to be blown to the power panel along the side wall of the heat sink, which results in an over-high temperature of other components on the power panel. Therefore, the prior art has the problem of poor heat dissipation effect.

SUMMERY OF THE UTILITY MODEL

The utility model provides a power strip subassembly and cooking utensil to solve the poor problem of radiating effect among the prior art.

According to an aspect of the utility model, a power strip subassembly is provided, and the power strip subassembly includes: a power panel support; the power panel is arranged on the power panel bracket; the radiating fin is arranged below the power panel and is arranged on one side of the power panel, which is far away from the power panel bracket; the fan assembly is arranged on the power panel bracket, corresponds to the radiating fins and is positioned below the radiating fins; the first wind shielding part is used for blocking the airflow passing through the radiating fin from flowing to the power panel. By adopting the heat dissipation structure, the first wind shielding part can be used for blocking airflow passing through the radiating fins from flowing to the power panel, and the airflow after heat exchange of the radiating fins is reduced from flowing to the power panel, so that the overhigh temperature of other components on the power panel can be avoided, and the overall heat dissipation effect of the device can be improved.

Further, the first wind shielding part comprises a wind shielding plate, the wind shielding plate extends along the height direction of the radiating fins, the wind shielding plate is provided with an upper end and a lower end which are arranged oppositely, and the lower end of the wind shielding plate is spaced from the side walls of the radiating fins, so that the radiating fins are provided with enough radiating spaces. Specifically, the projection of the wind shield in the vertical direction is at least partially overlapped with the radiating fin, so that when the airflow passing through the side wall of the radiating fin flows to the power panel, the upper end of the wind shield can block hot airflow, and the hot airflow is prevented from continuously flowing to the power panel.

Furthermore, the upper end of the wind shield is higher than the radiating fins, so that the wind shield can block hot air after heat exchange of the radiating fins in the left-right direction, and the hot air can be prevented from flowing to the power panel in the left-right direction.

Furthermore, the upper end of the wind shield is bent towards the radiating fins, so that the wind shield can block hot air after heat exchange of the radiating fins in the up-down direction, and the hot air can be prevented from flowing to the power panel in the up-down direction.

Further, the fan assembly comprises a fan support and a fan, the fan is arranged on the fan support, the fan support is arranged on the power panel support, and the first wind blocking portion is arranged on the fan support. By adopting the structure, the fan can be fixed on the power panel bracket by utilizing the fan bracket.

Furthermore, the fan is located below the fan support, a first air channel and a second air channel are arranged on the fan support, the first air channel is arranged corresponding to the radiating fins and located on the inner side of the first wind shielding portion, and the second air channel is located on the outer side of the first wind shielding portion. By adopting the structure, the cold air flow can be blown to the radiating fins through the first air channel, so that the radiating fins are cooled through the first air channel, the cold air flow can be blown to the power panel through the second air channel, and other components on the power panel are cooled through the second air channel.

Further, the power strip assembly further includes: the second wind blocking part is arranged on the power panel support and corresponds to the radiating fins, and the projection of the radiating fins on the power panel support is at least partially overlapped with the second wind blocking part, so that hot air passing through the radiating fins can be prevented from blowing to the other side of the power panel support by the second wind blocking part, and components on the other side of the power panel support are protected.

Furthermore, the second wind blocking portion is provided with an upper end and a lower end which are oppositely arranged, the bottom of the radiating fin is higher than the lower end of the second wind blocking portion, and the second wind blocking portion protruding out of the bottom of the radiating fin can guarantee the blocking effect on hot air flow so as to further improve the radiating effect.

Furthermore, the power panel support is also provided with support ribs, and the support ribs are arranged between the power panel support and the power panel, so that the power panel can be supported by the support ribs, and a certain gap can be formed between the power panel and the power panel support, so that the back of the power panel is ensured to have an enough heat dissipation space.

Furthermore, the radiating fin comprises a main body and radiating teeth, one side of the main body is a radiating surface, the radiating teeth are arranged on the other side of the main body, and the radiating surface of the radiating fin is perpendicular to the power supply board, so that hot air can be blocked by the structure of the radiating fin, and the air flow after heat exchange with the radiating fin is prevented from flowing to the power supply board.

According to another aspect of the present invention, there is provided a cooking appliance, the cooking appliance including: a pot body assembly; the upper cover assembly is arranged on the cooker body assembly; the base is connected with the cooker body assembly and is provided with heat dissipation holes; the power board assembly is arranged on the cooker body assembly and is the power board assembly provided by the cooker body assembly.

Use the technical scheme of the utility model, this power strip subassembly includes power strip support, power strip, fin, fan assembly and first portion of keeping out the wind. The power panel and the fan assembly are arranged on the power panel support, the radiating fins are arranged below the power panel, and the fan assembly is located below the radiating fins. Through setting up first portion that keeps out the wind, can utilize first portion that keeps out the wind to block the air current flow direction power strip through the fin, reduce the hot air flow direction power strip after the fin heat transfer to can avoid other components and parts on the power strip high temperature, can improve the holistic radiating effect of device through above-mentioned heat radiation structure.

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 an exploded view of a power board assembly provided by the present invention;

fig. 2 shows a schematic structural diagram of a power board assembly provided by the present invention;

fig. 3 shows a schematic structural diagram of a power board assembly provided by the present invention;

fig. 4 is a schematic structural diagram of the power board assembly provided by the present invention when the fan is not installed;

fig. 5 is a schematic structural diagram of the power panel assembly provided by the present invention when a fan is installed;

FIG. 6 shows a schematic structural view of the power strip support of FIG. 2;

fig. 7 shows an exploded view of a cooking appliance provided by the present invention;

fig. 8 shows a cross-sectional view of a cooking appliance provided by the present invention;

fig. 9 shows a partial enlarged view at a in fig. 8.

Wherein the figures include the following reference numerals:

10. a power panel support; 11. supporting ribs;

20. a power panel;

30. a heat sink; 31. a main body; 32. a heat dissipating tooth; 33. a heat dissipating surface;

40. a fan assembly; 41. a fan bracket; 411. a first air duct; 412. a second air duct; 42. a fan;

50. a first windshield portion; 51. a wind deflector;

60. a second wind blocking part;

100. a pot body assembly; 110. an upper cover assembly; 120. a base; 130. a power board assembly.

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.

As shown in fig. 1 to 6, an embodiment of the present invention provides a power strip assembly, which includes a power strip bracket 10, a power strip 20, a heat sink 30, a fan assembly 40, and a first windshield 50. Wherein, the power panel 20 and the fan assembly 40 are both disposed on the power panel support 10, and the power panel 20 and the fan assembly 40 can be fixed by using the power panel support 10. Specifically, the heat sink 30 is disposed below the power supply board 20, and the heat sink 30 is disposed on a side of the power supply board 20 away from the power supply board holder 10. By arranging the fan assembly 40 on the power panel support 10, the fan assembly 40 is arranged corresponding to the heat sink 30 and below the heat sink 30, so that the cold air flow can be blown to the heat sink 30 by the fan assembly 40 to exchange heat with the heat sink 30. The first wind blocking portion 50 serves to block the flow of air passing through the heat sink 30 toward the power supply board 20. The first wind blocking part 50 may be disposed along a circumferential direction of the heat radiating fin 30. In the present embodiment, the first wind blocking portions 50 are disposed on two sides of the heat sink 30, so that the first wind blocking portions 50 can block the airflow passing through the side walls of the heat sink 30 from flowing to the power board 20, and the situation of over-temperature of other components on the power board 20 can be avoided. Specifically, the first windshield portion 50 may be disposed on the fan assembly 40 or may be disposed on the power supply board 20. In the present embodiment, the first wind blocking portion 50 is provided on the fan assembly 40.

The heat sink 30 may be disposed parallel to the power board 20, or may be disposed perpendicular to the power board 20. In the present embodiment, in order to prevent the hot air flow generated by heat exchange with the heat sink 30 from being blown to the power supply board 20 along the heat sink 30, the heat sink 30 may be disposed perpendicular to the power supply board 20, so that the hot air flow can be blocked by the structure of the heat sink 30 itself. By adopting the above structure, the heat sink 30 vertically arranged on the power panel 20 can block a part of hot air flow, and the rest of hot air flow can be blocked by the first wind shielding parts 50 arranged on the two sides of the heat sink 30, so as to improve the heat dissipation effect of the device.

By using the power board assembly provided by the embodiment, the first wind shielding parts 50 are arranged on the two sides of the heat sink 30, so that the first wind shielding parts 50 can be used for blocking the airflow passing through the heat sink 30 from flowing to the power board 20, and the flow of the hot airflow after heat exchange through the side wall of the heat sink 30 to the power board 20 is reduced, thereby avoiding the overhigh temperature of other components on the power board 20, and further improving the overall heat dissipation effect of the device.

Specifically, the first windshield portion 50 includes a windshield 51, and the windshield 51 extends in the height direction of the heat sink 30. In the present embodiment, the vertical direction in which the fan assembly 40 is directed toward the power supply board 20 is the height direction of the heat sink 30. The wind guard 51 has an upper end and a lower end which are oppositely arranged, and the lower end of the wind guard 51 is spaced from the side wall of the heat sink 30, so that the heat sink 30 has a sufficient heat dissipation space. By making the projection of the wind deflector 51 in the vertical direction at least partially coincide with the heat sink 30, when the airflow passing through the side wall of the heat sink 30 flows to the power supply board 20, the wind deflector 51 can block the hot airflow, thereby preventing the hot airflow from continuously flowing to the power supply board 20. Specifically, the projection of the upper end of the wind deflector 51 in the vertical direction may partially overlap the heat sink 30, or a bent portion may be provided in the middle of the wind deflector 51, so that the projection of the bent portion in the vertical direction partially overlaps the heat sink 30. With the above configuration, the hot air flow can be blocked by the wind blocking plate 51.

In the present embodiment, the upper end of the wind deflector 51 is higher than the heat sink 30, so that the wind deflector 51 can block the hot air flow after heat exchange by the heat sink 30 in the left-right direction, and the hot air flow can be prevented from flowing to the power supply board 20 in the left-right direction. In the present embodiment, the left-right direction is a direction perpendicular to the side walls of the heat sink 30.

Wherein the upper end of the wind deflector 51 is bent toward the heat sink 30. With the above structure, the wind shield 51 can block the hot air flow after heat exchange by the heat sink 30 in the vertical direction, and can prevent the hot air flow from flowing to the power supply board 20 in the vertical direction. In the present embodiment, the vertical direction is the same as the height direction of the heat sink 30. Wherein, the upper end of the wind deflector 51 can contact with the top of the heat sink 30, so as to cover the upper end of the wind deflector 51 on the top of the heat sink 30; the upper end of the wind guard 51 may be spaced apart from the top of the heat sink 30 to facilitate heat dissipation by the heat sink 30. In the present embodiment, a certain interval is provided between the upper end of the wind deflector 51 and the top of the heat sink 30, and a projection of the upper end of the wind deflector 51 in the vertical direction partially coincides with the heat sink 30. In other embodiments, the wind deflector 51 may be integrally provided as a flat plate structure, and by inclining the wind deflector 51 toward the heat sink 30 as a whole, it is also possible to achieve that the projection of the upper end of the wind deflector 51 in the vertical direction partially coincides with the heat sink 30.

Specifically, the fan assembly 40 includes a fan bracket 41 and a fan 42, the fan bracket 41 is disposed on the power panel bracket 10, and the fan 42 is disposed on the fan bracket 41 to fix the fan 42 on the power panel bracket 10 via the fan bracket 41. Wherein, the fan bracket has the installation cavity, and fan 42 sets up in the installation cavity, can utilize the installation cavity to protect fan 42. The first wind blocking portion 50 is disposed on the fan bracket 41, and the first wind blocking portion 50 is disposed on a side of the fan bracket 41 close to the heat sink 30. Specifically, the first wind blocking portion 50 is formed to extend upward from the fan bracket 41. In other embodiments, the first wind blocking portion 50 may be disposed on a side of the power board 20 close to the heat sink 30, such that the first wind blocking portion 50 extends downward from the power board 20, and a lower end of the first wind blocking portion 50 abuts on an outer circumference of the fan bracket 41.

In the present embodiment, the fan 42 is located below the fan bracket 41, and the fan bracket 41 is provided with a first air duct 411 and a second air duct 412. Specifically, the first air duct 411 is disposed corresponding to the heat sink 30, and the second air duct 412 is disposed on a side of the first wind shielding portion 50 away from the heat sink 30. The first air duct 411 is disposed corresponding to the heat sink 30 and located inside the first wind blocking portion 50, so that the cold air flow can be blown to the heat sink 30 through the first air duct 411 to cool the heat sink 30. The second air duct 412 is disposed outside the first wind blocking portion 50, and the cold air flow can be blown to the power board 20 through the second air duct 412, so as to cool other components on the power board 20. In this embodiment, the first air duct 411 is disposed in the middle of the fan bracket 41, two second air ducts 412 are disposed on the fan bracket 41, and the second air ducts 412 are disposed in one-to-one correspondence with the first wind shielding portions 50. In other embodiments, a plurality of first air ducts 411 and a plurality of second air ducts 412 may be provided to improve the cooling effect.

The power strip assembly further includes a second wind blocking portion 60, the second wind blocking portion 60 is disposed on the power strip support 10, and the second wind blocking portion 60 is disposed corresponding to the heat dissipation fins 30. The projection of the heat sink 30 on the power panel support 10 is at least partially overlapped with the second wind blocking portion 60, so that the second wind blocking portion 60 can prevent hot air passing through the heat sink 30 from blowing to the other side of the power panel support 10, so as to protect components on the other side of the power panel support 10. For example, the coil disk may be protected from overheating.

Specifically, the second wind blocking portion 60 has an upper end and a lower end which are oppositely disposed, and the bottom of the heat dissipation fin 30 is higher than the lower end of the second wind blocking portion 60. With the above structure, the second wind blocking portion 60 protruding out of the bottom of the heat dissipating fin 30 can ensure the blocking effect on the hot air flow to further improve the heat dissipating effect.

In this embodiment, the power panel bracket 10 is further provided with a support rib 11, and the support rib 11 is disposed between the power panel bracket 10 and the power panel 20. When the power panel 20 is assembled on the power panel support 10, the support ribs 11 abut against the power panel 20, so that the power panel 20 can be supported by the support ribs 11, and a certain gap is formed between the power panel 20 and the power panel support 10 to ensure that the back of the power panel 20 has a sufficient heat dissipation space. In the present embodiment, the second wind blocking portion 60 is coplanar with the power panel bracket 10, so that a certain gap is formed between the second wind blocking portion 60 and the power panel 20.

In the present embodiment, the heat sink 30 includes a main body 31 and heat dissipation teeth 32, one side of the main body 31 is a heat dissipation surface 33, the heat dissipation teeth 32 are disposed on the other side of the main body 31, and the heat dissipation surface 33 of the heat sink 30 is perpendicular to the power board 20, so that the heat dissipation surface 33 of the heat sink 30 can block the hot air flow by using the structure of the heat sink 30 itself. Specifically, the extending direction of the heat dissipation teeth 32 is perpendicular to the power board 20, and when the fan 42 blows the cold airflow to the heat dissipation plate 30, the hot airflow formed after heat exchange with the heat dissipation plate 30 is discharged from one side of the heat dissipation plate along the tooth grooves between the plurality of heat dissipation teeth 32, so that the hot airflow can be prevented from being collected in the heat dissipation plate 30. In other embodiments, the extending direction of the heat dissipation teeth 32 may be set to be parallel to the power supply board 20. In the present embodiment, the IGBT is disposed on the heat dissipation surface 33.

As shown in fig. 7 to 9, another embodiment of the present invention provides a cooking appliance, which includes a pot body assembly 100, a top cover assembly 110, a base 120 and a power board assembly 130, wherein the power board assembly 130 is the above-mentioned power board assembly. Wherein, the upper cover assembly 110 and the power board assembly 130 are both arranged on the pot body assembly 100, and the base 120 is connected with the pot body assembly 100. In the present embodiment, the base 120 is provided with heat dissipation holes, and the heat dissipation holes are disposed corresponding to the heat dissipation plate 30. By adopting the structure, the hot air flow formed by heat exchange with the radiating fins 30 can be discharged to the outer side of the device through the radiating holes, so that the hot air flow is prevented from being gathered in the device. Wherein, the cooking utensil comprises an electric pressure cooker and an electric cooker.

In the device provided by the embodiment, the heat sink 30 is vertically arranged on the power supply board 20, the IGBT is arranged on the heat dissipation surface 33 of the heat sink 30, and the fan 42 is arranged below the heat sink 30. By providing the first wind blocking portion 50 on the fan bracket 41, the first wind blocking portion 50 can block the airflow passing through the side wall of the heat sink 30 from flowing toward the power supply board 20. By arranging the second air duct 412 on the side of the first wind shielding part 50 away from the heat sink 30, the cold air flow can be blown to the power panel 20 through the second air duct 412, so as to cool other components on the power panel 20. The second wind blocking portion 60 can prevent the hot air passing through the heat dissipation plate 30 from blowing to the other side of the power panel support 10, so as to protect the components on the other side of the power panel support 10.

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.

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

1. A power strip assembly, the power strip assembly comprising:

a power panel support (10);

a power panel (20) disposed on the power panel bracket (10);

the radiating fin (30) is arranged below the power panel (20), and the radiating fin (30) is arranged on one side of the power panel (20) far away from the power panel bracket (10);

the fan assembly (40) is arranged on the power panel bracket (10), and the fan assembly (40) is arranged corresponding to the radiating fin (30) and is positioned below the radiating fin (30);

a first wind blocking portion (50), the first wind blocking portion (50) blocking the airflow passing through the heat sink (30) from flowing toward the power strip (20).

2. A power strip assembly according to claim 1, wherein the first wind blocking portion (50) comprises a wind blocking plate (51), the wind blocking plate (51) extends along the height direction of the heat sink (30), the wind blocking plate (51) has an upper end and a lower end which are oppositely arranged, the lower end of the wind blocking plate (51) is spaced from the side wall of the heat sink (30), and the projection of the wind blocking plate (51) in the vertical direction at least partially coincides with the heat sink (30).

3. A power strip assembly according to claim 2, wherein the upper end of the wind deflector (51) is higher than the heat sink (30).

4. A power strip assembly according to claim 2, wherein the upper end of the wind deflector (51) is bent towards the heat sink (30).

5. The power strip assembly of claim 1, wherein the fan assembly (40) comprises a fan bracket (41) and a fan (42), the fan (42) is disposed on the fan bracket (41), the fan bracket (41) is disposed on the power strip bracket (10), and the first wind blocking portion (50) is disposed on the fan bracket (41).

6. The power board assembly according to claim 5, wherein the fan (42) is located below the fan bracket (41), the fan bracket (41) is provided with a first air duct (411) and a second air duct (412), the first air duct (411) is disposed corresponding to the heat sink (30) and located inside the first wind blocking portion (50), and the second air duct (412) is located outside the first wind blocking portion (50).

7. The power strip assembly of claim 1, further comprising:

the second wind blocking part (60) is arranged on the power panel support (10), the second wind blocking part (60) is arranged corresponding to the radiating fin (30), and the projection of the radiating fin (30) on the power panel support (10) is at least partially overlapped with the second wind blocking part (60).

8. The power board assembly according to claim 7, wherein the second wind blocking portion (60) has an upper end and a lower end which are oppositely disposed, and the bottom of the heat dissipation fin (30) is higher than the lower end of the second wind blocking portion (60).

9. The power strip assembly of claim 1, wherein a support rib (11) is further disposed on the power strip support (10), and the support rib (11) is disposed between the power strip support (10) and the power strip (20).

10. The power strip assembly of claim 1, wherein the heat sink (30) comprises a main body (31) and a heat sink tooth (32), one side of the main body (31) is a heat sink surface (33), the heat sink tooth (32) is disposed on the other side of the main body (31), and the heat sink surface (33) of the heat sink (30) is perpendicular to the power strip (20).

11. A cooking appliance, characterized in that it comprises:

a pot body assembly (100);

an upper cover assembly (110) provided on the pot body assembly (100);

the base (120) is connected with the cooker body assembly (100), and heat dissipation holes are formed in the base (120);

a power board assembly (130) disposed on the pot body assembly (100), the power board assembly (130) being the power board assembly of any one of claims 1 to 10.