CN212117833U - Cooking utensil - Google Patents

Abstract

The utility model provides a cooking utensil, including a kind of deep pot body, lid and refrigerating plant. The inner pot is arranged in the pot body; the cover body can be opened and closed relative to the cooker body, and a cooking space is formed between the cover body and the inner pot when the cooker body is closed; the cooling device is disposed in the pot body and serves to absorb heat from the cooking space to lower a temperature in the cooking space. Wherein, be provided with the heat preservation piece in the cooking utensil, the heat preservation piece is used for the parcel around the culinary art space to heat preservation to the culinary art space. According to the utility model discloses a cooking utensil, the internal refrigerating plant that is provided with of a kind of deep pot can realize cryogenic function. In addition, the cooking appliance is also provided with a heat preservation piece surrounding the cooking space, so that heat exchange between the cooking space and the outside can be weakened, the refrigeration effect can be optimized, and the reduction of energy consumption of the refrigeration function is facilitated.

Description

Cooking utensil

Technical Field

The utility model discloses generally relate to cooking utensil's technical field.

Background

Some cooking appliances on the market today are provided with a cooling device. The inner pot is cooled through the refrigerating device, and then food can be stored in the inner pot, so that the functions of cold storage and fresh keeping are realized. However, when the temperature in the inner pot is lower than the temperature of the external environment where the cooking appliance is located, heat exchange between the external environment and the inner pot is easily generated, thereby affecting the cooling effect. Sometimes, to ensure the cooling effect, the cooling device needs to be started for a long time or frequently, resulting in higher energy consumption of the cooling function.

Accordingly, there is a need for a cooking appliance that at least partially solves the problems of the prior art.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.

To solve the above problem at least in part, the present invention provides a cooking appliance, comprising:

the cooker body is internally provided with an inner pot;

the cover body is arranged in a manner of being capable of opening and closing relative to the cooker body, and when the cover body covers the cooker body, a cooking space is formed between the cover body and the inner pot; and

the refrigerating device is arranged in the pot body and used for reducing the temperature in the cooking space;

wherein, be provided with the heat preservation spare in the cooking utensil, the heat preservation spare is used for the parcel around cooking space to the cooking space heat-insulating keeps warm.

According to the utility model discloses a cooking utensil, the internal refrigerating plant that is provided with of a kind of deep pot can realize cryogenic function. In addition, a heat preservation piece surrounding the cooking space is further arranged in the cooking appliance, heat exchange between the cooking space and the outside can be weakened, the refrigeration effect can be optimized, and the reduction of energy consumption of the refrigeration function is facilitated.

Optionally, the heat preservation part comprises a lower heat preservation part arranged in the pot body, the lower heat preservation part comprises a bottom heat preservation part and a side heat preservation part, the bottom heat preservation part is arranged below the inner pot, and the side heat preservation part surrounds the side part of the inner pot. Therefore, the lower heat preservation piece can respectively preserve and insulate heat from the bottom and the side of the inner pot.

Optionally, the outside of interior pot is provided with around the heat preservation cover of interior pot, the side heat preservation portion is attached the lateral surface setting of heat preservation cover. Therefore, the heat preservation cover can further play a role in heat insulation.

Optionally, refrigerating plant includes the refrigeration piece and leads cold spare, the side heat preservation portion is provided with the mounting hole, it sets up at least partially to lead cold spare in the mounting hole, lead the one end of cold spare attached in the lateral surface of heat preservation cover, lead the other end of cold spare attached in the cold junction of refrigeration piece. Therefore, the cold guide piece can better perform the functions of cold accumulation and cold transmission under the condition that the volume of the refrigeration piece is limited.

Optionally, the cooking appliance further comprises a first additional heat preservation member wrapping the part of the cold conduction member, which is positioned outside the mounting hole. Therefore, heat and cold can be prevented from dissipating through the cold guide piece, and the heat transfer efficiency between the cold guide piece and the refrigerating piece is ensured.

Optionally, the heat-insulating cover is configured to be cylindrical, an upper edge of the heat-insulating cover is provided with a flange extending transversely outwards, the inner pot forms a pot edge extending transversely outwards at the pot opening, and the pot edge is supported on the upper surface of the flange. Therefore, the cold source is directly transmitted to the inner pot in a heat conduction mode through the heat preservation cover, and the heat transmission efficiency is improved.

Optionally, the turned edge extends beyond the pot edge in the transverse direction, and the cooking utensil further comprises a second additional heat preservation piece which covers the upper surface of the part of the turned edge, which exceeds the pot edge. Therefore, the width of the flanging is larger than that of the pot edge, heat can be transferred by utilizing the area of the pot edge as much as possible, and the second heat-preservation piece can play a role in heat preservation and heat insulation on the redundant part of the flanging.

Cooking utensil still is provided with the clamping ring, and the inboard limit of clamping ring is pressed the turn-ups, the outside limit of clamping ring is pressed the upper surface of a kind of deep pot body, the second attach heat preservation piece set up in the clamping ring with between the turn-ups, perhaps the second attach heat preservation piece set up in the clamping ring with between the upper surface of a kind of deep pot body, or the second attach heat preservation piece set up in by the clamping ring the upper surface of a kind of deep pot body and in the space that the turn-ups encloses.

Optionally, an electromagnetic induction heating device is arranged below the inner pot, and the electromagnetic induction heating device is located between the bottom heat preservation portion and the inner pot. Therefore, the heating device is surrounded in the heat preservation part, the sealing performance can be improved, the heating efficiency is ensured, the thermal inertia of the electromagnetic induction heating device is small, and the realization of the refrigeration function is facilitated.

Optionally, an upper heat-insulating piece is arranged in the cover body, and when the cover body covers the cooker body, the upper heat-insulating piece covers the inner cooker from the upper part of the inner cooker. Thereby, the heat preservation and insulation can be performed from the upper part of the cooking space.

Optionally, a steam channel is arranged in the cover body, the steam channel penetrates through the upper heat preservation piece, the steam channel can be arranged in an openable and closable manner, and the cooking space can be communicated with the outside through the steam channel. From this, the piece that keeps warm can not influence through steam channel intercommunication between culinary art space and the external world to but the steam channel that the switching set up is favorable to keeping warm when the refrigeration.

Optionally, the lower heat insulation member includes a heat insulation layer and a heat insulation housing for fixing the heat insulation layer. Therefore, the lower heat preservation piece is simple in structure and easy to manufacture.

Optionally, the heat-insulating layer is formed by filling a space between the heat-insulating outer shell and the inner pot with a foaming material. Therefore, the lower heat preservation part can be conveniently manufactured.

Optionally, an electromagnetic induction heating device is arranged below the inner pot and comprises an electromagnetic coil panel, a panel body of the electromagnetic coil panel is made of a heat insulating material, and the panel body of the electromagnetic coil panel forms the bottom heat preservation portion. Therefore, the bottom heat preservation part can be formed by the disc body of the coil disc.

Optionally, an electromagnetic induction heating device is arranged below the inner pot and comprises an electromagnetic coil panel, the thickness of the electromagnetic coil panel is set to be 3-10 mm, and the electromagnetic coil panel forms the bottom heat-preservation portion. Therefore, the bottom heat preservation part can be formed by the disc body of the coil disc.

Optionally, the heat-resistant temperature of the material for forming the heat-insulating piece is greater than or equal to 80 ℃;

and/or the flame retardant rating of the material constituting the heat insulating member is above UL 94V-0;

and/or the heat preservation member is made of at least one of mineral wool, glass fiber wool, aluminum silicate wool, asbestos, inorganic microporous materials and organic bubble-shaped heat preservation materials. Therefore, the heat-insulating piece can meet the requirements of heat insulation and flame retardance.

Drawings

The following drawings of the embodiments of the present invention are provided as a part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles of the invention. In the drawings, there is shown in the drawings,

fig. 1 is a vertical partial cut-away view of a preferred embodiment of a cooking appliance according to the present invention; and

fig. 2 is a partially enlarged view of a portion a in fig. 1.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring embodiments of the present invention.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art.

The utility model provides a cooking utensil. According to the utility model discloses a cooking utensil can be for electric rice cooker, electric pressure cooker or other cooking utensil, and according to the utility model discloses a cooking utensil except having the function of cooking rice, can also have various functions such as cooking congee, a kind of deep pot hot water, fried dish. The preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1, a cooking appliance according to a preferred embodiment of the present invention may include a pot body 10 and a cover 20. The inner pot 11 is arranged inside the pot body 10. The inner pot 11 may be removably provided in the pot body 10. For example, in one embodiment, a cylindrical inner pot receiving portion may be provided at the pot body 10, and the inner pot 11 may be freely put into or taken out of the inner pot receiving portion. The removable arrangement allows the user to conveniently remove the inner pan 11 for cleaning. Of course, in other embodiments, the inner pot 11 may be fixedly provided in the pot body 10 in an unreleasable manner. The pot body 10 is also generally provided therein with a heating means 30 for heating the inner pot 11.

The lid 20 is provided to the pot body 10 in an openable and closable manner. Therefore, the lid body 20 generally has a shape adapted to the shape of the pot body 10, so that the pot body 10 can be easily covered. When the lid body 20 is opened with respect to the pot body 10, the opening of the inner pot 11 in the pot body 10 is exposed, and the user can add food materials to the inner pot 11 or take cooked food out of the inner pot 11. When the cover 20 is closed on the pot body 10, it covers the inner pot 11, and forms a cooking space 12 for containing food and water to cook with the inner pot 11. A sealing ring (not shown) is further provided between the cover 20 and the inner pot 11 to maintain a good sealing property of the cooking space 12.

In addition, the cooking appliance further includes a cooling device 40. As shown in fig. 1, the refrigerating device 40 is provided inside the pot body 10 and is in thermal contact with the cooking space 12. When the cooling device 40 operates, it can guide heat in the cooking space 12, and lower the temperature in the cooking space 12, thereby forming a low temperature environment. Thereby refrigerating and keeping warm the food in the cooking space 12. In addition, the refrigerating device 40 can be used for increasing the content of resistant starch in the food by a proper cooking mode, so that the food with low glycemic index can be cooked.

As shown in fig. 2, in the present embodiment, the cooling device 40 is configured to perform cooling by means of semiconductor cooling. Therefore, the refrigerating device 40 includes a refrigerating member 41 configured as a semiconductor refrigerating chip, which implements a refrigerating effect using five thermoelectric effects of seebeck effect, peltier effect, thomson effect, joule effect, and fourier effect. The refrigerating device 40 is thus small in structure, can be conveniently disposed in the pot body 10, and makes the pot body 10 compact in structure, avoiding occupying a large space.

Of course, in other embodiments, the refrigeration device may be configured to perform refrigeration via compression refrigeration or other possible methods.

It will be understood that when the cooling device 40 is operated to make the temperature in the cooking space 12 lower than the external environment of the cooking appliance 1, the temperature difference between the cooking space 12 and the external environment will cause the heat of the external environment to be automatically transferred to the cooking space 12 in any feasible manner according to the law of thermodynamics, so that the temperatures of the cooking space 12 and the external environment tend to be equal. This will greatly diminish the refrigeration effect. Therefore, according to the present invention, a thermal insulation member is provided in the cooking appliance for surrounding the cooking space 12 therein and weakening heat exchange between the cooking space 12 and the outside.

As shown in fig. 1, an upper heat insulating member 60 is provided in the cover body 20. When the cover body 20 is closed, the upper heat retaining member 60 covers the upper side of the inner pot 11. For keeping warm and insulating heat from above the cooking space 12.

Further, a steam passage 21 is provided in the cover 20. The cooking space 12 may communicate with the outside through the steam passage 21 to equalize the pressure therein when heating cooking. Preferably, the steam channel 21 is provided to extend through the upper heat retaining member 60 within the cover body 20. Thus, the upper heat retainer 60 does not interfere with the steam passage 21. Preferably, the steam channel 21 is constructed in an openable and closable manner. During refrigeration, the steam channel 21 can be switched to a closed state, so that a closed environment is maintained in the cooking space 12 to weaken heat exchange between the cooking space 12 and the external environment, thereby improving refrigeration efficiency. And, when heating, the steam channel 21 is opened to equalize the pressure.

In addition, a lower heat-insulating member 50 wrapping the inner pot 11 from the outside of the inner pot 11 is provided in the pot body 10, which encloses the inner pot 11 therein, weakens the heat exchange between the inner pot 11 and the external environment by reducing the heat conductivity coefficient, etc., and plays a role of heat insulation, thereby preserving the cold in the inner pot 11 for a long time to optimize the refrigerating effect.

Specifically, the lower heat retainer 50 includes a bottom heat retainer 51 and a side heat retainer 52. Wherein, the bottom heat preservation part 51 wraps the bottom wall surrounding the inner pot 11 from the lower part of the inner pot 11. And the side heat preservation part 52 wraps around the side wall of the inner pot 11 from the outer side of the inner pot 11. Therefore, the lower heat preservation piece 50 wraps the inner pot 11 in an all-around manner, and heat exchange between the inner pot 11 and the external environment is weakened to the maximum extent.

It can be understood that the lower thermal insulation member 50 is made of a material having a small thermal conductivity to greatly reduce the heat exchange between the inner pot 11 and the external environment. In addition, the lower heat insulating member 50 wraps the inner pot 11 therein. In cooking, the temperature inside the inner pot 11 is high, so the lower thermal insulation member 50 also needs to have heat-resistant and flame-retardant properties to ensure a sufficient service life and to avoid fire-fighting hazards. The lower heat insulating member 50 is preferably made of a material capable of withstanding high temperatures, for example, 80 ℃. While the lower insulation 50 preferably has a flame retardant rating above UL94V-0 to eliminate fire hazards as much as possible. In view of the above characteristics, the lower thermal insulation member 50 may be made of at least one of mineral wool, glass fiber wool, aluminum silicate wool, asbestos, inorganic microporous materials, organic bubble-like thermal insulation materials, and the like.

In addition, the heat insulating performance of the lower heat insulating member 50 is also related to the thickness thereof. The greater the thickness, the better the heat insulating effect of the lower heat insulating member 50. For the present invention, the lower heat insulating member 50 preferably has a thickness of at least 5 mm. On the other hand, the thickness of the lower heat retaining member 50 should not be too large so as not to cause the volume of the pot body 10 to be too large. The lower thermal insulation member 50 may preferably be set to a thickness of 30mm or less, in consideration of both thermal insulation performance and structural size. Depending on the specific materials selected, the manufacturing process, etc., the thickness of the lower thermal insulator 50 may be selected from 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, or any value within the above range in different embodiments.

Preferably, in one embodiment, the lower insulating member 50 may be configured to include an insulating layer 54 and an insulating case 53. Wherein, the heat preservation layer 54 is made of at least one of the materials, and has the functions of heat preservation and heat insulation. And the thermal insulation casing 53 is arranged outside the thermal insulation layer 54 and used for fixing and protecting the thermal insulation layer 54.

According to the above structure, the heat insulating layer 54 is usually fixed to the inner pot 11, and then the heat insulating outer shell 53 is covered and fixed on the heat insulating layer 54. However, when the heat insulating layer 54 is made of a foamed material, the heat insulating outer shell 53 may be fixed to the inner pan 11, and then the foamed material may be filled in the space between the heat insulating outer shell 53 and the inner pan 11 to form the heat insulating layer 54 after curing.

Preferably, as shown in fig. 1, the bottom insulation 51 of the lower insulation 50 encloses the heating device 30 therein. That is, the heating means 30 is located at the inner side of the lower heat insulating member 50 to be disposed adjacent to the inner pot 11, thereby ensuring the heating efficiency of the inner pot 11 by the heating means 30. Further preferably, the heating device 30 is configured as an electromagnetic induction heating device such as a coil disk. For example, the coil disk may include a coil disk body and a coil wound on the coil disk body. On the one hand, the electromagnetic induction heating device has high heating efficiency and good controllability. On the other hand, the electromagnetic induction heating device has small thermal inertia, and is beneficial to the quick realization of the refrigeration function.

Preferably, in the embodiment in which the heating device 30 is configured as a coil disk, it is also possible to use a heat insulating material for the disk body of the coil disk and omit the bottom heat-insulating portion. The tray body directly forms a bottom heat preservation part. Preferably, in order to ensure the heat preservation effect of the disc body of the coil disc as the bottom heat preservation part, the thickness of the disc body is set to be 3mm-10 mm. For example, 3mm, 5mm, 7mm, 9mm or any value within the above range may be selected. Preferably, as shown in fig. 1 and 2, a heat-insulating cover 13 is further provided in the pot body 10. The heat-retaining hood 13 is of a substantially cylindrical configuration, which is arranged around from the side of the inner pan 11. During cooking, the inner pot 11 is heated by the heating device 30 to have a higher temperature. And the heat preservation cover 13 surrounds the inner pot 11 therein, so that the heat emitted to the outside by the inner pot 11 in a heat radiation mode and the heat transferred to the inner pot 11 from the outside can be further reduced, and the heat insulation effect on the inner pot 11 is achieved. In addition, the side heat insulating portion 52 of the lower heat insulating member 50 is attached to the outer surface of the inner pot 11.

In addition, the volume of the cooling device is generally small in consideration of the limited volume of the cooking appliance. Accordingly, the heat transfer area with the cooking space 12 is also small. Therefore, the heat transfer efficiency between the cooling member 41 and the cooking space 12 is low, and the cooling energy instantaneously generated during cooling cannot be transferred to the cooking space 12 well.

Preferably, the cooling device 40 further comprises a cold conductor 42. As shown in fig. 2, one end of the cold guide member 42 is attached to the outer side surface of the heat-retaining cover 13, and the other end is attached to the cold end of the cooling member 41. The cold guide member 42 has excellent cold storage and transfer capabilities, and can transfer heat of the cooking space 12 to the cooling member 41 with higher efficiency. Alternatively, it can also be considered to transfer the cold from the cooling member 41 to the cooking space 12. In general, the cold conductor 42 can improve the heat transfer efficiency between the cooking space 12 and the cold member 41.

In order to facilitate the attachment of the cooling duct 42 to the heat insulating cover 13, as shown in fig. 2, the side heat insulating portion 52 of the lower heat insulating member 50 is provided with an attachment hole 521. The cold guide piece 42 is at least partially attached to the heat-insulating cover 13 through the mounting hole 521. Further, the cold conductor 42 has a portion located outside the side heat-retaining portion 52. Preferably, the cooking appliance 1 further comprises a first additional insulation member 43 to wrap around a portion of the cold guide member 42 located outside the side insulation portion 52, so that heat and cold transferred from the cold guide member 42 can be concentratedly transferred between the cold guide member 41 and the heat retaining cover 13.

As shown in fig. 2, the inner pot 11 is provided with a pot edge 111 extending outwards in the transverse direction at the pot opening, so as to support and fix the inner pot 11 or to be held by a hand or a tool during moving. Further, the heat-insulating cover 13 is provided with a flange 131 extending outward in the transverse direction at the upper edge. And the rim 111 is supported on the upper surface of the flange 131. Thus, the flange 131 has good thermal contact with the rim 111. The cold-conducting piece 42 can rapidly transmit cold to the inner pot 11 through the abutting contact of the flange 131 and the pot edge 111.

In order to make as much use of the heat transfer area of the rim 111 as possible, the flange 131 preferably extends laterally beyond the edge of the rim 111. Further, the cooking appliance 1 further comprises a second additional heat preservation member 14 which covers the upper surface of the portion of the flange 131 beyond the pot rim 111 to reduce the dissipation of cold through the portion of the flange 131 beyond the pot rim.

Further, as shown in fig. 2, the cooking appliance 1 further includes a pressing ring 15. The inner side thereof is pressed against the flange 131 and the outer side is pressed against the upper surface (usually the middle plate) of the pot body 10. Thereby, an accommodating space is formed among the press ring 15, the upper surface of the pot body 10, and the burring 131. The second additional heat preservation member 14 is arranged in the accommodating space formed by the three members. Alternatively, the second additional heat retaining member 14 may be provided between the press ring 15 and the upper surface of the pot body 10. Or the second additional thermal insulator 14 may also be provided between the press ring 15 and the flange 131. The press ring 15 thus serves to fix and press the second supplementary insulation 14.

It is understood that the definition of the material, thickness, etc. of the lower heat retaining member 50 also applies to the upper heat retaining member 60, the first additional heat retaining member 43, and the second additional heat retaining member 14.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "disposed" and the like, as used herein, may refer to one element being directly attached to another element or one element being attached to another element through intervening elements. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. It will be appreciated by those skilled in the art that many more modifications and variations are possible in light of the above teaching and are intended to be included within the scope of the invention.

Claims (16)

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

the cooker comprises a cooker body (10), wherein an inner pot (11) is arranged in the cooker body (10);

a cover body which is arranged in a manner that the cover body can be opened and closed relative to the pot body (10), and when the cover body covers the pot body (10), a cooking space (12) is formed between the cover body and the inner pot (11); and

a refrigerating device (40), wherein the refrigerating device (40) is arranged in the cooker body (10) and is used for reducing the temperature in the cooking space (12);

wherein, be provided with the heat preservation spare in the cooking utensil, the heat preservation spare is used for the parcel around cooking space (12) to cooking space (12) heat-insulating heat preservation.

2. The cooking appliance according to claim 1, wherein the heat-insulating member comprises a lower heat-insulating member (50) disposed inside the pot body (10), the lower heat-insulating member (50) comprises a bottom heat-insulating portion (51) and a side heat-insulating portion (52), the bottom heat-insulating portion (51) is disposed below the inner pot (11), and the side heat-insulating portion (52) is disposed around a side portion of the inner pot (11).

3. The cooking appliance according to claim 2, wherein the outer side of the inner pan (11) is provided with a heat-insulating cover (13) surrounding the inner pan (11), and the side heat-insulating part (52) is arranged on the outer side surface attached to the heat-insulating cover (13).

4. The cooking appliance according to claim 3, wherein the refrigerating device (40) comprises a refrigerating element (41) and a cold conducting element (42), the side heat-insulating part (52) is provided with a mounting hole (521), the cold conducting element (42) is at least partially arranged in the mounting hole (521), one end of the cold conducting element (42) is attached to the outer side surface of the heat-insulating cover (13), and the other end of the cold conducting element (42) is attached to the cold end of the refrigerating element (41).

5. The cooking appliance according to claim 4, further comprising a first additional insulation member (43), wherein the first additional insulation member (43) wraps a portion of the cold-conducting member (42) located outside the mounting hole (521).

6. Cooking appliance according to claim 4, characterized in that the heat-retaining cover (13) is configured as a cylinder, the upper edge of the heat-retaining cover (13) is provided with a laterally outwardly extending flange (131), the inner pan (11) forms a laterally outwardly extending pan rim (111) at the position of the pan opening, the pan rim (111) being supported on the upper surface of the flange (131).

7. Cooking appliance according to claim 6, characterized in that the turned-over edge (131) extends beyond the pot rim (111) in the transverse direction, the cooking appliance further comprising a second additional insulating member (14), the second additional insulating member (14) covering the upper surface of the portion of the turned-over edge (131) beyond the pot rim (111).

8. The cooking appliance according to claim 7, wherein a pressing ring (15) is further provided, the inner side of the pressing ring (15) is pressed on the flanging (131), the outer side of the pressing ring (15) is pressed on the upper surface of the pot body (10), the second additional heat-insulating piece (14) is arranged between the pressing ring (15) and the flanging (131), or the second additional heat-insulating piece (14) is arranged between the pressing ring (15) and the upper surface of the pot body (10), or the second additional heat-insulating piece (14) is arranged in a space surrounded by the pressing ring (15), the upper surface of the pot body (10) and the flanging (131).

9. The cooking appliance according to claim 2, wherein an electromagnetic induction heating means is provided below the inner pan (11), said electromagnetic induction heating means being located between the bottom insulation (51) and the inner pan (11).

10. The cooking appliance according to claim 1, wherein the heat retaining member comprises an upper heat retaining member (60) provided in the lid body (20), the upper heat retaining member (60) covering the inner pot (11) from above the inner pot (11) when the lid body (20) covers the pot body (10).

11. The cooking appliance according to claim 10, wherein a steam passage (21) is provided in the cover body (20), the steam passage (21) is provided through the upper heat retaining member (60), the steam passage (21) is openably and closably provided, and the cooking space (12) can communicate with the outside through the steam passage (21).

12. The cooking appliance according to claim 2, wherein the lower insulating member (50) comprises an insulating layer (54) and an insulating housing (53) for fixing the insulating layer (54).

13. The cooking appliance according to claim 12, wherein the insulation layer (54) is constructed as a structure made of a foamed material, wherein the foamed material is filled in a space between the insulation outer shell (53) and the inner pan (11).

14. The cooking appliance according to claim 2, wherein an electromagnetic induction heating device is arranged below the inner pot (11), the electromagnetic induction heating device comprises an electromagnetic coil panel, the plate body of the electromagnetic coil panel is made of heat insulating material, and the plate body of the electromagnetic coil panel forms the bottom heat preservation part (51).

15. The cooking appliance according to claim 2, wherein an electromagnetic induction heating device is provided below the inner pot (11), the electromagnetic induction heating device comprising an electromagnetic coil plate, a plate body thickness of the electromagnetic coil plate being set to 3mm-10mm, the plate body of the electromagnetic coil plate constituting the bottom heat-retaining portion (51).

16. The cooking appliance according to claim 1, wherein the heat-resistant temperature of the material constituting the insulating member is greater than or equal to 80 ℃;

and/or the flame retardant rating of the material constituting the heat insulating member is above UL 94V-0;

and/or the heat preservation member is made of at least one of mineral wool, glass fiber wool, aluminum silicate wool, asbestos, inorganic microporous materials and organic bubble-shaped heat preservation materials.

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