CN217066108U

CN217066108U - Wind scooper, heating device and cooking utensil

Info

Publication number: CN217066108U
Application number: CN202121480748.8U
Authority: CN
Inventors: 肖志一
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-07-29
Anticipated expiration: 2031-06-30

Abstract

The utility model provides a wind scooper, device and cooking utensil generate heat, wherein, the wind scooper, include: the cover body is provided with an air outlet; and the circumferential extension part is arranged on the cover body and surrounds the air outlet, wherein the circumferential extension part is made of a temperature-resistant material. The technical scheme of this application has solved the higher problem of cost of the a kind of deep pot body in the air fryer among the correlation technique effectively.

Description

Wind scooper, heating device and cooking utensil

Technical Field

The utility model relates to a small household appliances technical field particularly, relates to an air guide cover, device and cooking utensil generate heat.

Background

In the related art, an air fryer includes a pot body and a heat generating main body provided in the pot body. The pot body is provided with an air outlet, and the heating main body blows hot air into the air fryer through the hot air outlet.

When the hot air is blown out through the hot air outlet by the structure, in order to avoid melting the structure around the air outlet, the whole cooker body is made of a temperature-resistant material, so that the cost of the cooker body is higher.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide an air guiding cover, a heating device and a cooking utensil, which can solve the problem of high cost of the cooker body in the related art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a wind scooper comprising: the cover body is provided with an air outlet; and the circumferential extension part is arranged on the cover body and surrounds the air outlet, wherein the circumferential extension part is made of a temperature-resistant material.

Use the technical scheme of the utility model, can establish the cover body cover outside the main part that generates heat and be located a kind of deep pot body's hot-blast air outlet department. The circumference extension sets up on the cover body, and enclose and establish in air outlet department, because the circumference extension of circumference extension along a kind of deep pot body extends the certain distance, the circumference extension is made by temperature resistant material, air outlet and a kind of deep pot body can be kept apart to the circumference extension, make the edge of a kind of deep pot body keep away from the air outlet, the heat of isolated air outlet department, make a kind of deep pot body be difficult to be heated, and then the difficult phenomenon that melts that produces, avoid damaging cooking utensil, the body need not to use temperature resistant material (temperature resistant material indicates that the temperature resistant requires the material more than 250 degrees), the processing cost of the a kind of deep pot body has been reduced effectively. Therefore, the technical scheme of the application effectively solves the problem that the cost of the cooker body in the related technology is high.

Further, in order to optimize the structural layout at the same time, the production, manufacture and installation are facilitated. The cover body comprises a top wall and a side wall extending downwards from the edge of the top wall, the bottom of the side wall forms an air inlet of the cover body, an air outlet is arranged on the side wall, a circumferential extending portion is arranged on the side wall, and the circumferential extending portion is arc-shaped.

Further, an upper portion of the circumferential extension portion is provided with a slot. In the structure, the slot circumferential extension part can be inserted at the hot air outlet of the cooker body, so that the connection reliability is improved.

Further, a lower portion of the circumferential extension is provided with a first step structure. In the structure, the first step structure circumferential extension part can be lapped at the hot air outlet. Like this, the circumference extension can be fixed a position in hot-blast air outlet department, improves the stability of installation.

Furthermore, the wind scooper also comprises a blocking edge arranged on the inner side of the circumferential extension part, and the blocking edge is positioned above the wind outlet; and/or the inner side of the circumferential extension is provided with a second step structure. The arrangement of the blocking edge can block the hot air blown out from the heating main body, and the outward loss of the hot air is reduced, so that the hot air can be intensively blown into the inner pan of the cooking utensil.

Furthermore, in order to form a first air inlet gap between the air guiding cover and the cover body, the two second step structures are respectively positioned at the left side and the right side of the air outlet, and each second step structure is positioned at the oblique lower part of the blocking edge. The first air inlet gap is formed between the second step structure and the cover body. Therefore, cold air outside the cooking utensil can be sucked into the air inlet through the first air inlet gap and enters the heat generating device.

Further, in order to ensure that the high temperature at the air outlet does not generate a glue melting phenomenon, the temperature-resistant material comprises polyphenylene sulfone resin or polyphenylene sulfide; and/or the circumferential extensions comprise two first circumferential extensions extending in the transverse direction and two second circumferential extensions extending in the vertical direction, the length L of the first circumferential extensions being greater than the length L of the second circumferential extensions. The structure enables the circumferential extending part to have a longer extending distance, so that the heat of the contact part of the cooker body and the circumferential extending part is greatly reduced, and the possibility of deformation of the cooker body can be greatly reduced.

Further, in order to further reduce the heat at the contact of the pot body and the first circumferential extension, the length L of the first circumferential extension is between 40mm and 55 mm.

According to another aspect of the present invention, a heating device is provided, which comprises a heating body and an air guiding cover covering the heating body, wherein the air guiding cover is the above-mentioned air guiding cover. Since the air guide cover can solve the problem of high cost of the cooker body in the related art, the heating device comprising the air guide cover can solve the same technical problem.

According to the utility model discloses an on the other hand provides a cooking utensil, including a kind of deep pot body and the device that generates heat of setting on a kind of deep pot body, the device that generates heat is foretell device that generates heat. Since the above-described heat generating device can solve the problem of the high cost of the pot body in the air fryer in the related art, the cooking appliance including the heat generating device can solve the same technical problem.

Further, the a kind of deep pot body includes the shell and sets up the heat preservation cover in the shell, is provided with between shell and the heat preservation cover and holds the chamber, and the main part setting that generates heat of device is holding the intracavity, and the inboard that keeps warm the cover is provided with hot-blast air outlet, and the circumference extension of the wind scooper of the device that generates heat is installed in hot-blast air outlet department, and the first stair structure of circumference extension cooperates with the partly overlap joint at the top that keeps warm the cover. The lower part of the circumferential extension part is supported at the top of the heat-insulation cover, and meanwhile, the first step structure is in lap joint with a part of the top of the heat-insulation cover, so that the heat-insulation cover is convenient to position and beneficial to improving the installation efficiency of the air guide cover.

Further, the cooker body also comprises a middle plate arranged on the top of the shell and the top of the heat-preservation cover, and the middle plate is in inserted fit with the slots of the circumferential extension part; the inboard of heat preservation cover is provided with the third stair structure, and the second stair structure parallel and level setting of third stair structure and circumference extension. The matched structure of the dowel and the slot is simple, easy to process and easy to realize.

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 an embodiment of a wind scooper according to the present invention;

FIG. 2 illustrates a perspective view of the wind scooper of FIG. 1 at another angle;

fig. 3 shows a schematic cross-sectional view of an embodiment of a cooking appliance according to the present invention;

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

fig. 5 is a schematic perspective view illustrating a structure in which a heat generating device of the cooking appliance of fig. 3 is mounted on a pot body; and

fig. 6 shows a perspective view of a pot body of the cooking appliance of fig. 3.

Wherein the figures include the following reference numerals:

10. a cover body; 11. an air outlet; 12. a top wall; 13. a side wall; 14. an air inlet; 20. a circumferential extension; 21. a slot; 22. a first step structure; 23. a second step structure; 24. a first circumferential extension; 25. a second circumferential extension; 30. blocking edges; 40. a heat-generating body; 50. a pot body; 51. a housing; 52. a heat-preserving cover; 521. a hot air outlet; 522. a third step structure; 53. a middle plate; 531. inserting ribs; 54. an accommodating chamber; 61. a volute; 62. a fan.

Detailed Description

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

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

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

As shown in fig. 1 to 4, the wind scooper of the present embodiment includes: a shroud body 10 and a circumferential extension 20. The cover body 10 is provided with an air outlet 11. The circumferential extension 20 is disposed on the cover body 10 and surrounds the air outlet 11.

By applying the technical scheme of the embodiment, the cover body 10 can be covered outside the heating main body and positioned at the hot air outlet 11 of the cooker body. The setting of circumference extension 20 is on cover body 10, and enclose and establish in 11 departments of air outlet, because the circumference extension 20 along the a kind of deep pot body extends the certain distance in the circumference, circumference extension 20 is made by temperature resistant material, the air outlet 11 and a kind of deep pot body can be kept apart to circumference extension 20, make the edge of a kind of deep pot body keep away from air outlet 11, the heat of isolated air outlet 11 department, make a kind of deep pot body be difficult to be heated, and then the difficult phenomenon that melts that produces, avoid damaging cooking utensil, the body of a kind of deep pot need not to use temperature resistant material simultaneously (temperature resistant material indicates that the temperature resistant requires the material more than 250 degrees), the processing cost of the a kind of deep pot body has been reduced effectively. Therefore, the technical scheme of the embodiment effectively solves the problem of high cost of the cooker body in the related art.

As shown in fig. 1 and 5, in the present embodiment, the circumferential extension 20 includes two first circumferential extensions 24 extending in the lateral direction and two second circumferential extensions 25 extending in the vertical direction. The length L1 of first circumferential extension 24 is greater than the length L2 of second circumferential extension 25. The above structure enables the circumferential extension portion 20 to have a longer extension distance, so that the heat at the contact position of the pot body and the circumferential extension portion is greatly reduced, and the possibility of deformation of the pot body can be greatly reduced. Preferably, in order to further reduce the heat at the contact of the pot body and the first circumferential extension 24, the length L1 of the first circumferential extension 24 is between 40mm and 55mm, preferably 48mm, but may of course be 45mm or 50 mm.

Of course, in embodiments not shown in the figures, the circumferential extension may also comprise only two first circumferential extensions or two second circumferential extensions extending in the vertical direction.

As shown in fig. 3 to 5, the cooking appliance includes a pot body 50, and the pot body 50 includes a housing 51 and a heat-insulating cover 52 provided inside the housing 51. An accommodating chamber 54 is provided between the housing 51 and the heat-retaining cover 52. The heat generating body 40 of the heat generating device is disposed in the accommodating chamber 54.

As shown in fig. 1 and 2, in order to optimize the structural layout at the same time, the production, manufacture and installation are facilitated. The cover body 10 comprises a top wall 12 and a side wall 13 extending downwards from the edge of the top wall 12, an air inlet 14 of the cover body 10 is formed at the bottom of the side wall 13, an air outlet 11 is arranged on the side wall 13, a circumferential extending part 20 is arranged on the side wall 13, and the circumferential extending part 20 is arc-shaped. The arc-shaped circumferential extension 20 is adapted to the shape of the inner side wall of the heat retaining cover 52.

As shown in fig. 1 and 2, in order to form the first air inlet gap between the air guiding cover and the cover body, the number of the second step structures 23 is two, the two second step structures 23 are respectively located at the left and right sides of the air outlet 11, and each second step structure 23 is located obliquely below the blocking edge 30. The first air inlet gap is formed between the second step structure 23 and the cover body. Therefore, cold air outside the cooking utensil can be sucked into the air inlet through the first air inlet gap and enters the heat generating device. It should be noted that, the fact that each second step structure 23 is located obliquely below the blocking edge 30 means that the projection of each second step structure 23 on the horizontal plane is partially overlapped with the blocking edge 30, and the non-overlapped part of each second step structure 23 is located completely outside the blocking edge 30.

As shown in fig. 1 to 5, an upper portion of the circumferential extension 20 is provided with an insertion groove 21. In this way, the circumferential extension part 20 can be inserted into the hot air outlet 521 of the cooker body through the slot 21, so as to improve the reliability of connection. Specifically, as shown in fig. 1 to 5, the pot body 50 further includes an intermediate plate 53 disposed on the top of the outer shell 51 and the top of the heat-insulating cover 52, and the intermediate plate 53 is in insertion fit with the insertion groove 21 of the circumferential extension 20. In this way, the above-described plug-fit construction enables a reliable mounting of the circumferential extension 20. Meanwhile, the circumferential extension part 20 can isolate the heating main body and the middle plate 53 to isolate the heat of the heating main body, so that the middle plate 53 can avoid the high temperature at the hot air outlet 521, and can use a material bearing low temperature, thereby reducing the processing cost.

Preferably, the middle plate 53 is provided with a rib 531 on the bottom surface, and the rib 531 is inserted into the slot 21 of the circumferential extension 20. The fitting structure of the dowel 531 and the slot 21 is simple, easy to process and easy to implement.

As shown in fig. 1 to 5, a lower portion of the circumferential extension 20 is provided with a first step structure 22. In this way, the circumferential extension part 20 can be overlapped at the hot air outlet 521 through the first step structure 22, so that the circumferential extension part 20 can be positioned at the hot air outlet 521, and the installation stability is improved.

Specifically, as shown in fig. 1 to 5, the circumferential extension portion 20 of the air guiding cover is installed at the hot air outlet 521, and the first step structure 22 of the circumferential extension portion 20 is in lap-joint fit with a part of the top of the heat insulating cover 52, so that the top of the heat insulating cover 52 supports the lower portion of the circumferential extension portion 20, and meanwhile, the first step structure 22 is in lap-joint fit with a part of the top of the heat insulating cover 52, which is convenient for positioning and beneficial for improving the installation efficiency of the air guiding cover.

As shown in fig. 4 and 5, the wind scooper further includes a blocking edge 30 disposed inside the circumferential extension 20. The blocking edge 30 is located above the air outlet 11. The blocking edge 30 is arranged to block the hot air blown from the heating body, so as to reduce the outward loss of the hot air, and the hot air can be intensively blown into the inner pan of the cooking appliance.

As shown in fig. 3 to 6, in the present embodiment, the cooking utensil further includes a cover covering the pot body 50 and a heating device disposed on the pot body, and the pot body 50 is provided with an air inlet. In order to form a first air inlet gap between the air guiding cover and the cover body, a second step structure 23 is arranged inside the circumferential extension part 20. Thus, the above-mentioned first air inlet gap is formed between the second step structure 23 and the cover body. Therefore, cold air outside the cooking utensil can be sucked into the air inlet through the first air inlet gap and enters the heat generating device. The second stepped structure 23 is located below the blocking edge 30, and a distance H between a stepped surface of the second stepped structure 23 and a lower surface of the blocking edge 30 gradually decreases from the center of the air outlet 11 to one side of the air outlet 11. In this way, the step surface of the second step structure 23 located right below the blocking edge 30 can form a draft angle, so that the processing is convenient, and the mold stripping is easy. The cover body comprises a glass cover.

The distance H between the step surface of the second stepped structure 23 and the lower surface of the blocking edge 30 refers to the distance H between the step surface of the second stepped structure 23 located directly below the blocking edge 30 and the lower surface of the blocking edge 30.

As shown in fig. 1 to 6, it should be noted that, in order to ensure that the high temperature at the air outlet does not generate the glue melting phenomenon, the circumferential extension portion 20 is made of a known material having a heat resistant temperature range of 280 degrees to 350 degrees. Such as a temperature resistant material, preferably PPSU (polyphenylene sulfone resin) or PPS (polyphenylene sulfide). Preferably, the heat resistant temperature of the circumferential extension 20 is 280 degrees or 300 degrees or 320 degrees or 350 degrees. The material of the pot body 50 is preferably PBT (polybutylene terephthalate) or PET (polyethylene terephthalate), so that the heat-resistant temperature range of the pot body 50 is 190 to 230 degrees, the material of the pot body 50 can also be PA66 (nylon 66), and the heat-resistant temperature range of the pot body 50 of the PA66 material is 220 to 240 degrees.

The application also provides a heating device. As shown in fig. 3 to 6, the heat generating device of the present embodiment includes a heat generating main body 40 and the wind scooper described above covering the heat generating main body 40. Since the air guide cover can solve the problem of high cost of the cooker body in the related art, the heating device comprising the air guide cover can solve the same technical problem. The heat generating device further comprises a volute 61 arranged in the cooker body 50 of the cooking appliance and a fan 62 arranged in the volute 61, wherein the fan 62 of the embodiment is preferably a centrifugal fan. The heat generating body 40 is disposed at an outlet of the scroll casing 61. The heating main body 40 comprises a shell and a heating element arranged in the shell, the wind scooper is covered outside the shell, and the heating element is a heating wire or a heating tube or a heating disc.

The present application also provides a cooking appliance. As shown in fig. 3 to 6, the cooking appliance of the present embodiment includes a pot body 50 and the above-described heat generating device provided on the pot body 50. Since the above-described heat generating device can solve the problem of the high cost of the pot body in the air fryer in the related art, the cooking appliance including the heat generating device can solve the same technical problem.

As shown in fig. 3 to 5, the pot body 50 includes a housing 51 and an insulating cover 52 provided inside the housing 51. An accommodating chamber 54 is provided between the housing 51 and the heat-retaining cover 52. The heating body 40 of the heating device is arranged in the accommodating cavity 54, and the inner side of the heat-insulating cover 52 is provided with a hot air outlet 521. The wind scooper of the heating device is installed at the hot wind outlet 521. In this way, the accommodating chamber 54 is provided so that the inside of the pot body 50 has an installation space for conveniently installing the heat generating main body 40 of the heat generating device.

The cooking appliance further comprises a cover body covering the cooker body 50, and an air inlet is formed in the cooker body 50. In order to form a second air inlet gap between the heat-insulating cover 52 and the cover body, a third step structure 522 is arranged on the inner side of the heat-insulating cover 52. Thus, the second air inlet gap is formed between the third step structure 522 and the cover body. Therefore, cold air outside the cooking utensil can be sucked into the air inlet through the second air inlet gap and enters the heat generating device. And the inner side of the circumferential extension part 20 is provided with a second stepped structure 23, the inner side of the heat-insulating cover 52 is provided with a third stepped structure 522, and the second stepped structure 23 of the circumferential extension part 20 is flush with the third stepped structure 522. Thus, the first air inlet gap and the second air inlet gap form an annular air inlet gap together. The cold air can enter the pot body 50 from any place around the cooking appliance, and further enter the air inlet.

As shown in fig. 5, in order to optimize the structural layout at the same time, the production, manufacture and installation are facilitated. The second step structure 23 includes two first vertical arc surfaces and a first transition surface connected between the two first vertical arc surfaces, and the third step structure 522 includes two second vertical arc surfaces and a second transition surface connected between the two second vertical arc surfaces. The second step structure 23 and the third step structure 522 are arranged in parallel and level, that is, the two first vertical arc surfaces are respectively arranged in a coplanar manner with the two second vertical arc surfaces, and the first transition surface is arranged in a coplanar manner with the second transition surface.

In this embodiment, the cooking appliance includes an air fryer or an electric rice cooker or an electric pressure cooker or a multifunctional heating pot with functions of baking, cooking and cooking.

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 … … surface," "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 also be oriented 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. An air scoop, comprising:

the air-conditioning cover comprises a cover body (10), wherein an air outlet (11) is formed in the cover body (10);

the circumferential extension part (20) is arranged on the cover body (10) and surrounds the air outlet (11), wherein the circumferential extension part (20) is made of a temperature-resistant material.

2. The wind scooper according to claim 1, wherein the shroud body (10) comprises a top wall (12) and a side wall (13) extending downward from an edge of the top wall (12), wherein an air inlet (14) of the shroud body (10) is formed at a bottom of the side wall (13), the air outlet (11) is arranged on the side wall (13), the circumferential extending portion (20) is arranged on the side wall (13), and the circumferential extending portion (20) is arc-shaped.

3. Wind scooper according to claim 1, characterized in that the upper part of the circumferential extension (20) is provided with a slot (21).

4. Wind scooper according to claim 1, characterized in that the lower part of the circumferential extension (20) is provided with a first step structure (22).

5. The wind scooper according to claim 1, further comprising a blocking edge (30) arranged inside the circumferential extension (20), the blocking edge (30) being located above the wind outlet (11); and/or the inner side of the circumferential extension (20) is provided with a second step structure (23).

6. The wind scooper according to claim 5, wherein the number of the second step structures (23) is two, the two second step structures (23) are respectively located on the left side and the right side of the wind outlet (11), and each second step structure (23) is located obliquely below the blocking edge (30).

7. The wind scooper of claim 1, wherein the temperature resistant material comprises a polyphenylene sulfone resin or a polyphenylene sulfide; and/or said circumferential extension (20) comprises two first circumferential extensions (24) extending in a transverse direction and two second circumferential extensions (25) extending in a vertical direction, the length (L1) of said first circumferential extensions (24) being greater than the length (L2) of said second circumferential extensions (25).

8. The wind scooper of claim 7, wherein the length (L1) of the first circumferential extension (24) is between 40mm and 55 mm.

9. A heat generating device comprising a heat generating body (40) and an air guiding cover covering the heat generating body (40), wherein the air guiding cover is the air guiding cover according to any one of claims 1 to 8.

10. A cooking appliance comprising a pot body (50) and a heat generating means provided on the pot body (50), characterized in that the heat generating means is the heat generating means of claim 9.

11. The cooking appliance according to claim 10, wherein the pot body (50) comprises a housing (51) and a heat-insulating cover (52) arranged in the housing (51), a containing cavity (54) is arranged between the housing (51) and the heat-insulating cover (52), the heating body (40) of the heating device is arranged in the containing cavity (54), a hot air outlet (521) is arranged on the inner side of the heat-insulating cover (52), the circumferential extension (20) of the wind scooper of the heating device is arranged at the hot air outlet (521), and the first step structure (22) of the circumferential extension (20) is in lap fit with a part of the top of the heat-insulating cover (52).

12. The cooking appliance of claim 11,

the cooker body (50) further comprises a middle plate (53) arranged on the top of the shell (51) and the top of the heat-preservation cover (52), and the middle plate (53) is in plug fit with the slot (21) of the circumferential extension part (20);

the inner side of the heat-insulating cover (52) is provided with a third step structure (522), and the third step structure (522) is flush with the second step structure (23) of the circumferential extension part (20).