CN112741489A

CN112741489A - Cooking utensil

Info

Publication number: CN112741489A
Application number: CN201911047988.6A
Authority: CN
Inventors: 吴飞; 蔡何意
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2021-05-04

Abstract

The invention provides a cooking utensil which comprises an outer pot, a cooking cover and a cooking cover, wherein the outer pot comprises a shell and a heat preservation cover assembly arranged in the shell; the inner pot is arranged in the heat-preservation cover component; the pot cover is covered on the outer pot and the inner pot; the fan is arranged in the shell, an air inlet of the fan is communicated with an air inlet of the shell, and an air outlet of the fan is communicated with the first overflowing opening; the power panel is arranged in the shell; wherein, a part of the wind blown out from the wind outlet of the fan blows to the space between the heat preservation cover component and the inner pot, and the other part blows to the power panel and flows out from the wind outlet of the shell. The technical scheme effectively solves the problem that the cooling fan is not sufficiently utilized in the related art.

Description

Cooking utensil

Technical Field

The invention relates to the technical field of small household appliances, in particular to a cooking appliance.

Background

The electric pressure cooker is an upgrading and updating product of the traditional pressure cooker and the electric cooker, combines the advantages of the pressure cooker and the electric cooker, thoroughly solves the safety problem of the pressure cooker, eliminates the potential safety hazard which puzzles consumers for many years by the common pressure cooker, saves time and electricity, is automatic, convenient and durable.

The electric pressure cooker generally comprises a shell, a heat preservation cover, an inner cooker, a heating device, a cooker cover and other structures. After cooking is finished, before food needs to be taken out by opening the cooker cover, because high-temperature and high-pressure gas exists in the cooker, pressure relief needs to be carried out or the inner cooker needs to be naturally cooled, and the cooker cover is opened after the pressure in the cooker is reduced. When the pressure is released, the fluid food in the pot is easily flushed out by high-pressure gas, and the user is easily scalded. If the natural cooling is carried out, the waiting time is long, and the requirement of a user cannot be met.

In order to solve the problems, a cold air channel for cooling air circulation is arranged between the inner pot and the heat preservation cover, and a cooling fan is arranged to suck the air outside the electric pressure cooker into the cold air channel to dissipate the heat of the inner pot, so that the pressure of the food in the inner pot is quickly reduced. However, the above-described solution can only dissipate heat from the inner pot, and thus the cooling fan is not used sufficiently.

Disclosure of Invention

The invention mainly aims to provide a cooking appliance to solve the problem that the cooling fan in the prior art is not fully utilized.

In order to achieve the above object, the present invention provides a cooking appliance, comprising: the outer pot comprises a shell and a heat preservation cover assembly arranged in the shell, wherein the shell is provided with an air inlet and an air outlet, and the heat preservation cover assembly is provided with a first overflowing opening; the inner pot is arranged in the heat-preservation cover component; the pot cover is covered on the outer pot and the inner pot; the fan is arranged in the shell, an air inlet of the fan is communicated with an air inlet of the shell, and an air outlet of the fan is communicated with the first overflowing opening; the power panel is arranged in the shell; wherein, a part of the wind blown out from the wind outlet of the fan blows to the space between the heat preservation cover component and the inner pot, and the other part blows to the power panel and flows out from the wind outlet of the shell.

By applying the technical scheme of the invention, the inner pot and the power panel are simultaneously radiated by using the same fan. Specifically, interior pot setting has the space between interior pot and the heat preservation subassembly in the heat preservation subassembly, and some wind that the fan blew off can flow into in this space through the first mouth that overflows on the heat preservation cover subassembly. At the moment, the wind flows in the space, so that the temperature of the inner pot can be reduced, and the heat of the inner pot can be effectively dissipated. On the other hand, the other part of the wind blown out by the fan can blow to the power panel to dissipate the heat of the power panel. Therefore, the fan can realize heat dissipation of the inner pot and the power panel simultaneously, the fan is fully utilized, the overall performance of the cooking appliance is improved to some extent, and the structure is more compact.

Further, cooking utensil still includes the sealing ring, and the sealing ring setting is on heat preservation cover subassembly and/or interior pot to with the space separation who keeps warm between cover subassembly and the interior pot become upper portion space and lower part space, be provided with the breach or the via hole of intercommunication upper portion space and lower part space on the sealing ring. The arrangement of the sealing ring can prolong the time of the air staying in the space between the heat-insulating cover assembly and the inner pot, so that the heat dissipation effect is better.

Further, the heat preservation cover assembly comprises a heat preservation cover and a middle plate structure arranged at the top of the heat preservation cover, the sealing ring is arranged on the heat preservation cover assembly and fixed on the heat preservation cover and/or the middle plate structure, the inner ring of the sealing ring is in interference fit with the inner pot, and the first overflowing opening is formed in the heat preservation cover. The interference fit enables the sealing effect of the sealing ring to be better, and further enables the overall heat dissipation effect to be better. And the interference fit structure is simple, the installation is convenient and the maintenance is convenient.

Further, the first opening that overflows includes a plurality of through-holes that set up in parallel, and every through-hole is the arc. Foretell simple structure has guaranteed the air inlet effect under limited air inlet area to this structure can compromise the structural strength who keeps warm and cover the subassembly.

Furthermore, the heat preservation cover is provided with an air guide concave part, and the air guide concave part is positioned below the notch or the via hole. The above structure increases the space below the gap or via hole so that wind can collect therein and flow out through the gap or via hole.

Further, the outer pot comprises a front portion and a rear portion which are opposite to each other, the fan is arranged on the rear portion of the outer pot, and the notch or the through hole is formed in the front portion of the outer pot. The distance between the fan and the notch or the via hole is far by the structure, so that the time of the wind staying in the space between the heat-insulating cover assembly and the inner pot can be effectively prolonged, and the heat dissipation effect is ensured.

Further, the wind flowing out from the notch or the through hole is discharged from the rear part of the outer pot. The structure can effectively protect the user from being scalded when the hot air is used and is prevented from flowing out.

Further, cooking utensil still includes heating device, and heating device sets up in heat preservation cover subassembly bottom, has the distance between the bottom of heating device and interior pot. The structure enables wind to circulate from the space between the heating device and the bottom of the inner pot, and meanwhile, the heat dissipation of the heating device can be realized.

Further, cooking utensil still includes heating device and support, and heating device sets up in heat preservation cover subassembly bottom, and the support is connected with heating device and is located heating device's circumference outside, and power strip and fan are all connected on the support, are provided with the second on the support and flow through the mouth, and the second flows through the mouth and links the air outlet and the first mouth that flows of ventilation blower. The support is simple in structure.

Furthermore, the cooking utensil further comprises a baffle plate, the baffle plate is movably arranged at the second overflowing opening, and the baffle plate is provided with a blocking position for blocking the second overflowing opening and an avoiding position for avoiding the second overflowing opening. The baffle plate can avoid or block the second overflowing opening, and can control whether the air blown out by the fan enters between the heat-insulating cover assembly and the inner pot.

Furthermore, the power panel has the heat dissipation portion, is provided with the IGBT module on the power panel, and the heat dissipation portion sets up with the laminating of IGBT module. The arrangement of the heat dissipation part can better realize heat dissipation for the IGBT module.

Furthermore, the middle plate structure comprises an annular part and a cylinder part extending downwards, and the sealing ring is clamped between the cylinder part and the heat-insulating cover; the top end of the heat-insulating cover is provided with a first step surface, and the sealing ring is provided with a second step surface abutted against the first step surface; a first positioning notch is formed in the top end of the heat-insulating cover, a second positioning notch matched with the first positioning notch is formed in the sealing ring, and the second positioning notch is communicated with the notch or the through hole; the air inlet direction and the air outlet direction of the fan are parallel to the axis of the fan, the axis of the fan is arranged along the transverse direction, and the projection of the heating device in the horizontal plane is not coincident with the projection of the fan in the horizontal plane. The first step surface and the second step surface can play a positioning role. And the fan is located heating device's lateral part, can reduce cooking utensil's height.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, 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;

FIG. 2 shows an enlarged partial view of the cooking appliance of FIG. 1 at A;

FIG. 3 shows an exploded view of the cooking appliance of FIG. 1;

fig. 4 shows a perspective view of a sealing ring of the cooking appliance of fig. 3;

FIG. 5 shows a schematic perspective view of the heat retention cover of FIG. 3;

FIG. 6 shows a perspective view of the stent of FIG. 3;

FIG. 7 is a perspective view of the bracket of FIG. 3 from another perspective; and

fig. 8 shows a perspective view of the base of the outer pan of fig. 3.

Wherein the figures include the following reference numerals:

111. an air inlet; 121. an air outlet; 13. a housing; 14. a heat-preserving cover; 141. a first flow port; 141a, a through hole; 143. a first positioning notch; 144. an air guide concave part; 15. a middle plate structure; 151. an annular portion; 152. a barrel portion; 16. a heating device; 20. a power panel; 21. a heat dissipating section; 22. an IGBT module; 30. a fan; 40. an air outlet duct; 52. a second wind blocking rib; 70. an inner pot; 80. a seal ring; 81. an upper space; 82. a lower space; 83. a notch; 84. a second positioning notch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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.

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 unless specifically stated otherwise. 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 and 2, the cooking appliance of the present embodiment includes: outer pot, inner pot 70, pot cover, fan 30 and power panel 20. The outer pot comprises a shell 13 and a heat preservation cover assembly arranged in the shell 13, wherein an air inlet 111 and an air outlet 121 are arranged on the shell 13, and a first overflowing opening 141 is arranged on the heat preservation cover assembly. The inner pot 70 is disposed within the heat shield assembly. And the pot cover is covered on the outer pot and the inner pot. The fan 30 is disposed in the housing 13, an air inlet of the fan 30 is communicated with the air inlet 111 of the housing 13, and an air outlet of the fan 30 is communicated with the first flow passing port 141. The power supply board 20 is disposed within the housing 13. Wherein, a part of the air blown out from the air outlet of the fan 30 blows to between the heat preservation cover assembly and the inner pot 70, and the other part blows to the power panel 20 and flows out from the air outlet 121 of the shell.

By applying the technical scheme of the embodiment, the same fan 30 is used for simultaneously dissipating heat of the inner pot 70 and the power panel 20. Specifically, the inner pot 70 is disposed in the heat insulation assembly, a space exists between the inner pot 70 and the heat insulation assembly, and a part of the wind blown out by the fan 30 can flow into the space through the first flow port 141 on the heat insulation cover assembly. At this time, the wind flows in the space, so that the temperature of the inner pot 70 can be lowered, and the heat of the inner pot 70 can be effectively dissipated. On the other hand, another part of the wind blown by the fan 30 can blow to the power panel 20 to dissipate the heat of the power panel 20. Therefore, the fan 30 can realize the heat dissipation of the inner pot 70 and the power panel 20 at the same time, the fan 30 is fully utilized, the overall performance of the cooking appliance is improved to some extent, and the structure is more compact.

As shown in fig. 2 and 4, in the present embodiment, the cooking appliance further includes a sealing ring 80, the sealing ring 80 is disposed on the heat-insulating cover assembly to divide the space between the heat-insulating cover assembly and the inner pan 70 into an upper space 81 and a lower space 82, and the sealing ring 80 is provided with a notch 83 communicating the upper space 81 and the lower space 82. The space between the heat retaining cover assembly and the inner pan 70 is divided into an upper space 81 and a lower space 82 by a sealing ring 80. The arrangement of the sealing ring can prolong the time of the air staying in the space between the heat-insulating cover assembly and the inner pot, so that the heat dissipation effect is better. Wind firstly radiates heat from the lower space and then flows to the upper space through the gap or the hole to radiate heat from the upper space. The temperature of the inner pot in the lower space is higher than that of the inner pot in the upper space, a large amount of heat can be effectively taken away for heat dissipation of the lower space, the heat dissipation effect can be better, and the structure is simple and convenient to install.

In the embodiment not shown in the figure, the sealing ring can also be arranged on the inner pot, at the moment, the sealing ring needs to be fixed on the inner pot, the upper space and the lower space can also be separated, and the effect is similar to the effect of arranging the sealing ring on the heat-insulating cover component.

In an embodiment not shown in the figures, the sealing ring may not be provided with a notch but with a via hole, through which the upper space and the lower space are connected. The arrangement of the through holes can also realize the circulation of wind.

As shown in fig. 3 and 5, by applying the technical solution of this embodiment, the heat-insulating cover assembly includes a heat-insulating cover 14 and a middle plate structure 15 disposed on the top of the heat-insulating cover 14, the sealing ring 80 is disposed on the heat-insulating cover assembly and fixed on the heat-insulating cover 14, an inner ring of the sealing ring 80 is in interference fit with the inner pot 70, and the first flow-through hole 141 is disposed on the heat-insulating cover 14. The interference fit structure is simple and easy to realize.

In embodiments not shown in the figures, the sealing ring may also be provided on the mid-plate structure.

As shown in fig. 5, in the present embodiment, the first overflow port 141 includes a plurality of through holes 141a arranged in parallel, and each of the through holes 141a has an arc shape. The first overflow port 141 is arranged in an arc shape, so that the ventilation area can be increased as much as possible in the fixed area, and the ventilation effect is better. The arc shape increases the overall structural strength and is not easy to damage.

As shown in fig. 4 and 5, in the present embodiment, the heat insulating cover 14 is provided with the air guiding recess 144, and the air guiding recess 144 is located below the notch 83. The air guide concave part 144 is arranged below the notch 83, air is gathered at the air guide concave part 144 and then flows out through the notch 83, and therefore the heat dissipation effect is better.

As shown in fig. 1, in the present embodiment, the outer pot includes opposite front and rear portions, the blower 30 is disposed at the rear portion of the outer pot, and the notch 83 or the via hole is disposed at the front portion of the outer pot. For cooking appliances, generally, the side facing the user is the front part, and the front part is generally provided with a control panel or a cover opening button on the outer pot or the pot cover. For the embodiment, the pot cover and the outer pot are connected through the pivoting structure, and one side of the pivoting structure is the rear part.

As shown in fig. 1, in the present embodiment, the wind flowing out of the notch 83 is discharged from the rear of the outer pot. The air is discharged from the rear part, so that the air can be effectively prevented from flowing out to scald a user, and the user can obtain better use experience.

As shown in fig. 1, 3 and 7, in the present embodiment, the cooking appliance further includes a heating device 16, the heating device 16 is disposed at the bottom of the heat-preserving cover 14, and the heating device 16 is spaced from the bottom of the inner pot 70. The distance is used for ventilation, and the air flows through the bottom of the inner pot, so that a large amount of heat can be taken away, and the heat dissipation effect is achieved.

In an embodiment not shown in the figures, the cooking appliance further comprises a baffle movably arranged at the second flow opening, and the baffle has a blocking position for blocking the second flow opening and an avoiding position for avoiding the second flow opening. The baffle plate can avoid or block the second overflowing opening, and can control whether the air blown out by the fan enters between the heat-insulating cover assembly and the inner pot. Under the condition that the power strip needs the heat dissipation but the interior pot need not the heat dissipation for the baffle is in the shutoff position, under the condition that power strip and interior pot all need the heat dissipation, makes the baffle be in dodges the position. Of course, when the baffle is in the avoiding position, the baffle can adjust the size of the second overflowing opening according to needs, and then the air volume of the air for radiating the inner pot can be controlled.

In the present embodiment, the power supply board 20 has a heat dissipation portion 21, the IGBT module 22 is provided on the power supply board 20, and the heat dissipation portion 21 and the IGBT module 22 are attached to each other. The IGBT module 22 has a good heat dissipation effect, which is beneficial to heat dissipation of the power panel.

As shown in fig. 4, 5, 6 and 7, in the present embodiment, the middle plate structure 15 includes an annular portion 151 and a downwardly extending cylindrical portion 152, and the sealing ring 80 is interposed between the cylindrical portion 152 and the heat-insulating cover 14, so as to facilitate the fixing of the sealing ring 80 and simplify the assembling process. The top end of the heat-insulating cover 14 is provided with a first step surface, and the sealing ring 80 is provided with a second step surface abutted against the first step surface; the top end of the heat-preservation cover 14 is provided with a first positioning notch 143, the sealing ring 80 is provided with a second positioning notch 84 matched with the first positioning notch 143, and the second positioning notch 84 is communicated with the notch 83 or the through hole; the above structure facilitates the positioning between the sealing ring 80 and the heat-retaining cover 14.

As shown in fig. 1, in the present embodiment, the air inlet direction and the air outlet direction of the fan 30 are parallel to the axis of the fan 30, the axis of the fan 30 is arranged along the transverse direction, and the projection of the heating device 16 in the horizontal plane is not coincident with the projection of the fan 30 in the horizontal plane. The fan 30 is located at a side of the heating device 16, which can reduce the height of the cooking appliance.

It should be noted that the above-mentioned "transverse direction" is along the horizontal direction or the included angle with the horizontal direction is within 30 degrees, and it is preferable to be along the horizontal direction, in this case, the ventilation effect is the best, and the heat dissipation effect is the best.

As shown in fig. 1, in the present embodiment, the heat dissipating part 21 has a heat dissipating channel, and the fan 30 is located on a first side of the heat dissipating part 21. The cooking appliance further comprises an air outlet duct 40, and the air outlet duct 40 is located at a second side of the heat dissipation portion, which is opposite to the first side. The air outlet direction of the fan 30 is parallel to the extending direction of the heat dissipation channel, and the extending direction of at least part of the air outlet duct 40 is parallel to the extending direction of the heat dissipation channel.

As shown in fig. 1 and fig. 2, in the present embodiment, the fan 30 is disposed on the first side of the heat dissipation portion 21 of the power board 20, and the air outlet direction of the fan 30 is parallel to the extending direction of the heat dissipation channel of the heat dissipation portion 21, so that the air blown by the fan can be blown into the heat dissipation channel of the heat dissipation portion 21 better, and the heat dissipation channel makes the contact area between the air and the heat dissipation portion 21 larger, so that the heat dissipation effect is better. The air outlet direction, the heat dissipation channel and the air outlet duct 40 of the fan are arranged in parallel, so that the wind blown out by the fan 30 can flow out from the air outlet duct 40 more smoothly. In this way, the fan 30 can reduce the temperature of the heat dissipation portion most efficiently and further reduce the temperature of the power board 20, thereby effectively solving the problem of shortened service life of the cooking appliance due to poor heat dissipation in the related art. The heat dissipation portion 21 includes a plurality of fins arranged at intervals, and gaps between the plurality of fins form a heat dissipation passage.

As shown in fig. 1 and fig. 2, in this embodiment, the cooking appliance further includes a first wind shielding rib disposed on the bottom wall of the housing 13 and extending upward, the first wind shielding rib is disposed corresponding to the heat dissipation portion, and in the axial direction of the fan, the wind inlet of the housing and the wind outlet of the housing are respectively located on two opposite sides of the first wind shielding rib. The first wind blocking rib is positioned at the bottom of the heat dissipation part, so that the flow direction of wind can be effectively controlled, the wind completely flows through the heat dissipation part without backflow, and the heat dissipation capability is improved.

As shown in fig. 1 and 2, in the present embodiment, the distance between the tip of the first wind-shielding rib and the heat-radiating portion 21 is less than or equal to 5 mm. The structure can effectively prevent backflow, and can also be used in the assembling process, so that interference between the first wind shielding rib and the radiating part during assembling is avoided.

As shown in fig. 8, in the present embodiment, the cooking appliance further includes a second wind blocking rib 52 disposed on the bottom wall of the housing 13 and extending downward, and the second wind blocking rib 52 is located between the wind inlet 111 of the housing and the wind outlet 121 of the housing. The second wind blocking rib 52 prevents the hot wind flowing out of the wind outlet 121 from being sucked again from the wind inlet 111.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, 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 simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered 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 the terms have no special meanings unless otherwise stated, 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 cooking appliance, comprising:

the outer pot comprises a shell (13) and a heat-preservation cover assembly arranged in the shell (13), wherein an air inlet (111) and an air outlet (112) are formed in the shell (13), and a first overflowing opening (141) is formed in the heat-preservation cover assembly;

an inner pan (70) disposed within the heat retention shield assembly;

the pot cover is covered on the outer pot and the inner pot (70);

the fan (30) is arranged in the shell (13), an air inlet of the fan (30) is communicated with an air inlet (111) of the shell (13), and an air outlet of the fan (30) is communicated with the first overflowing port (141);

a power strip (20), the power strip (20) being disposed within the housing (13);

wherein, a part of the air blown out from the air outlet of the fan (30) blows to the space between the heat preservation cover component and the inner pot (70), and the other part blows to the power panel (20) and flows out from the air outlet (112) of the outer shell (13).

2. The cooking appliance according to claim 1, further comprising a sealing ring (80), wherein the sealing ring (80) is disposed on the heat-retaining cover assembly and/or the inner pan (70) to divide a space between the heat-retaining cover assembly and the inner pan (70) into an upper space (81) and a lower space (82), and the sealing ring (80) is provided with a notch (83) or a through hole communicating the upper space (81) and the lower space (82).

3. The cooking appliance according to claim 2, wherein the heat-insulating cover assembly comprises a heat-insulating cover (14) and a middle plate structure (15) arranged on the top of the heat-insulating cover (14), the sealing ring (80) is arranged on the heat-insulating cover assembly and fixed on the heat-insulating cover (14) and/or the middle plate structure (15), the inner ring of the sealing ring (80) is in interference fit with the inner pot (70), and the first overflowing port (141) is arranged on the heat-insulating cover (14).

4. The cooking appliance according to claim 3, wherein the first overflow port (141) comprises a plurality of through holes (141a) arranged in parallel, each of the through holes (141a) having an arc shape.

5. The cooking appliance according to claim 3, wherein the heat-insulating cover (14) is provided with a wind guide concave part (144), and the wind guide concave part (144) is positioned below the notch (83) or the through hole.

6. The cooking appliance of claim 2, wherein the outer pan comprises opposing front and rear portions, the fan (30) is disposed at the rear portion of the outer pan, and the notch (83) or the through hole is disposed at the front portion of the outer pan.

7. The cooking appliance according to claim 6, wherein the wind flowing out from the gap (83) or the through hole is discharged from the rear of the outer pot.

8. The cooking appliance according to claim 1, further comprising a heating device (16), wherein the heating device (16) is arranged at the bottom of the heat-retaining cover assembly, and the heating device (16) is spaced from the bottom of the inner pan (70); the heating device (16) is an IH heating device.

9. The cooking appliance according to claim 1, further comprising a heating device (16) and a support (60), wherein the heating device (16) is arranged at the bottom of the heat-preserving cover assembly, the support (60) is connected with the heating device (16) and located at the circumferential outer side of the heating device (16), the power supply board (20) and the fan (30) are both connected to the support (60), a second flow-through port is arranged on the support (60), and the second flow-through port is communicated with the air outlet of the fan (30) and the first flow-through port (141).

10. The cooking appliance of claim 9, further comprising a baffle movably disposed at the second flow opening, the baffle having a blocking position blocking the second flow opening and an avoidance position avoiding the second flow opening.

11. The cooking appliance according to claim 1, wherein the power supply board (20) has a heat dissipation portion (21), wherein the power supply board (20) is provided with an IGBT module (22), and the heat dissipation portion (21) is attached to the IGBT module (22).

12. The cooking appliance of claim 3,

the middle plate structure (15) comprises an annular part (151) and a cylinder part (152) extending downwards, and the sealing ring (80) is clamped between the cylinder part (152) and the heat-insulating cover (14);

a first step surface is arranged at the top end of the heat-insulating cover (14), and a second step surface abutted against the first step surface is arranged on the sealing ring (80); a first positioning notch (143) is formed in the top end of the heat-preservation cover (14), a second positioning notch (84) matched with the first positioning notch (143) is formed in the sealing ring (80), and the second positioning notch (84) is communicated with the notch (83) or the through hole;

the cooking utensil further comprises a heating device (16), the heating device (16) is arranged at the bottom of the heat preservation cover (14), a distance is reserved between the heating device (16) and the bottom of the inner pot (70), the air inlet direction and the air outlet direction of the fan (30) are parallel to the axis of the fan (30), the axis of the fan (30) is arranged along the transverse direction, and the projection of the heating device (16) in the horizontal plane is not coincident with the projection of the fan (30) in the horizontal plane.