Frying and baking machine

Abstract

The frying and baking machine comprises a shell and a baking tray, a metal tray is arranged between the shell and the baking tray, a heating piece used for heating the baking tray is arranged on the metal tray, and the shell is provided with a surrounding wall; the metal disc comprises a bottom wall, a side wall connected with the bottom wall, an outer flange connected with the side wall and folded outwards, and a bent part connected with the outer flange and bent relative to the outer flange, the lower end of the bent part is in butt joint with the upper end of the enclosure wall, and a heat insulation space is formed among the upper portion of the side wall, the outer flange, the bent part and the top of the enclosure wall. The existence of the heat insulation space can reduce the heat transfer from the metal disc to the enclosure bulkhead of the shell, reduce the temperature rise of the shell, reduce the requirement on the heat resistance of the shell from the perspective of materials, and further reduce the cost of manufacturing the shell.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of kitchen appliances, and particularly relates to a frying and baking machine. BACKGROUND

[0002] The existing frying and baking machine comprises a base and a baking tray arranged on the base, one side of the base is recessed to form a mounting groove for accommodating the baking tray, the bottom of the mounting groove is provided with a reflecting plate, and a heating pipe is arranged between the reflecting plate and the baking tray. The heat generated by the heating pipe is transmitted upward to heat the food on the baking tray. The heat transmission from the baking tray and the heating pipe to the bottom of the base is reflected to the baking tray through the reflecting plate to reduce heat loss. The existing base is mostly a plastic part, and the installation position of the reflecting plate on the base only occupies the part of the area below the baking tray. However, the baking tray is a three-dimensional structure. During the operation of the frying and baking machine, not only the bottom of the baking tray will lose heat outward, but also the side of the baking tray will lose heat outward. However, the position of the reflecting plate cannot cover the side of the baking tray, so that the heat loss of the side of the baking tray is serious, the heating efficiency is reduced, and the baking tray will radiate heat to the plastic part, causing the temperature of the plastic part to rise and emitting odor. In addition, the cooperation between the reflecting plate and the base puts high requirements on the heat resistance of the base. When the reflecting plate is arranged as a reflecting structure matched with the three-dimensional structure of the baking tray, how to reduce the heat transmission from the reflecting plate to the base becomes a technical problem to be solved in the field. CONTENT OF THE UTILITY MODEL

[0003] The application provides a frying and baking machine to solve the technical problem of how to reduce the heat loss of the baking tray during the operation of the frying and baking machine and the temperature rise of the base of the frying and baking machine.

[0004] The technical scheme adopted by the application is as follows:

[0005] A frying and baking machine comprises an outer shell and a baking tray, a metal disc is arranged between the outer shell and the baking tray, a heating element for heating the baking tray is arranged on the metal disc, the outer shell is provided with a surrounding wall, the metal disc comprises a bottom wall, a side wall connected with the bottom wall, an outwardly folded edge connected with the side wall and folded outwardly, and a bent portion connected with the outwardly folded edge and bent relative to the outwardly folded edge, the lower end of the bent portion is connected with the upper end of the surrounding wall, and a heat insulation space is formed between the upper part of the side wall, the outwardly folded edge, the bent portion and the top of the surrounding wall.

[0006] The metal plate in the application comprises a bottom wall and a side wall, which cooperate to form a three-dimensional package for the baking plate. During the operation of the baking machine, the heat dissipated from the bottom and the side of the baking plate is reflected back to the baking plate through the bottom wall and the side wall. On the one hand, the heat loss of the baking plate is greatly reduced, and the heating efficiency of the baking plate on the food is ensured. On the other hand, the heat dissipation of the baking plate is reduced, and the heat indirectly radiated to the shell is also reduced, so that the temperature rise of the shell is reduced. The reduction of the temperature of the shell reduces the odor during the operation of the baking machine, and improves the user experience. Moreover, the upper part of the side wall of the metal plate, the outwardly turned edge, the bending part and the top of the surrounding wall of the shell form a heat insulation space. The existence of the heat insulation space reduces the heat transfer from the metal plate to the surrounding wall of the shell, thereby further reducing the temperature rise of the shell. From the perspective of material, the demand for heat resistance of the shell is reduced, thereby reducing the cost of manufacturing the shell. In addition, the heat insulation space corresponds to the upper position of the side of the baking plate. This position is also the upper position of the side of the baking plate. This position is far away from the bottom of the baking plate, and the temperature itself is lower than the rest of the baking plate. Because it is close to the mouth of the baking plate, the heat dissipation is relatively serious. The existence of the heat insulation space forms an air insulation layer around the upper position of the side of the baking plate, thereby further reducing the heat loss, ensuring the temperature of the upper position of the side of the baking plate, and making the food heated more evenly, thereby improving the cooking effect of the food.

[0007] From another angle, the existence of the heat insulation space can also play a role in rough positioning of the metal plate and the shell during assembly, which helps to improve the assembly efficiency between the two.

[0008] The side wall is provided with a plurality of protruding parts protruding inwardly of the metal plate along the circumference thereof; or,

[0009] The side wall is provided with a ring of protruding parts protruding inwardly of the metal plate along the circumference thereof, and the protruding parts have a closed ring structure.

[0010] The technical solution sets the protruding parts protruding inwardly of the metal plate on the side wall. On the one hand, the gap between the side of the baking plate and the side wall of the metal plate can be reduced, thereby reducing the heat exchange between the space in the metal plate and the outside, ensuring the heat efficiency of the baking plate. On the other hand, when the baking plate adopts a realization mode that can be taken out of the metal plate or due to factors such as machining error and assembly error, the existence of the protruding parts can reduce the contact area between the baking plate and the side wall after the baking plate is placed into the metal plate, thereby reducing the contact heat transfer between the baking plate and the side wall. This reduces the heat loss of the baking plate and the temperature rise of the metal plate, thereby indirectly reducing the temperature rise of the shell. From the perspective of structure, the existence of the protruding parts can improve the structural strength of the side wall of the metal plate, so that it is not easy to deform, thereby prolonging the service life of the metal plate.

[0011] The protruding part is a hollow structure to form a heat insulation cavity communicating with the heat insulation space between the side of the protruding part away from the baking tray and the surrounding wall.

[0012] The protruding part is a hollow structure to form a heat insulation cavity communicating with the heat insulation space between the side of the protruding part away from the baking tray and the surrounding wall.

[0013] The protruding part is provided with a guide slope gradually away from the surrounding wall from the top end to the bottom end.

[0014] The protruding part is provided with a guide slope gradually away from the surrounding wall from the top end to the bottom end.

[0015] The baking tray is supported on the heating element to form a heat insulation gap between the top flange of the baking tray and the outer flange.

[0016] The baking tray is supported on the heating element to form a heat insulation gap between the top flange of the baking tray and the outer flange.

[0017] The bottom end surface of the top flange of the baking tray is provided with a plurality of convexities protruding towards the outer flange along the circumference.

[0018] The convex bump is arranged on the top flange of the baking tray, which can improve the structural strength of the top flange of the baking tray, reduce the probability of stress deformation, and protrude outward from the outer flange of the metal tray, thereby reducing the thickness of the heat insulation gap, reducing the heat exchange between the space in the metal tray and the outside air, and ensuring the heat efficiency of the baking tray.

[0019] The bottom wall is provided with a plurality of support ribs protruding inward from the metal tray, and the heating element is fixedly installed on the support ribs.

[0020] The bottom wall of the metal tray is provided with a plurality of support ribs, which can improve the structural strength of the bottom wall of the metal tray and reduce the probability of stress deformation. The heating element is fixedly installed on the support ribs, which can reduce the heat transfer from the heating element to the metal tray, thereby reducing the heat loss of the heating element and enabling more heat to be concentrated to the baking tray, thereby ensuring the heating efficiency of the baking tray.

[0021] The metal tray is detachably connected to the shell by the fastener.

[0022] The metal tray is detachably installed on the shell by the fastener, which facilitates the assembly of the metal tray and the shell, and reduces the replacement cost when one of the metal tray and the shell is damaged.

[0023] The bottom of the shell is provided with a plurality of positioning columns extending upward, the positioning columns are provided with first installation holes, the bottom wall is provided with second installation holes opposite to the first installation holes, and the metal tray is fixedly installed on the positioning columns by the fastener penetrating the first installation holes and the second installation holes.

[0024] The positioning columns extending upward are arranged on the bottom of the shell for installing the metal tray, which can increase the heat insulation distance between the metal tray and the bottom of the shell, reduce the heat transfer from the metal tray to the bottom of the shell, and thereby reduce the temperature rise of the bottom of the shell.

[0025] The bottom of the shell is provided with a sunken area protruding away from the bottom wall, a heat dissipation cavity is formed between the sunken area and the bottom wall, and the sunken area is provided with a plurality of heat dissipation holes communicating with the heat dissipation cavity and the outside.

[0026] The sunken area is arranged on the bottom of the shell away from the bottom wall of the metal tray, which can further increase the heat insulation distance between the sunken area and the bottom wall of the metal tray, and reduce the heat transfer from the metal tray to the bottom of the shell. The heat dissipation cavity is formed between the sunken area and the bottom wall of the metal tray, and the heat dissipation cavity is in communication with the outside, which can form heat exchange between the inside and outside of the shell, thereby not only reducing the temperature rise of the shell, but also reducing the ambient temperature inside the shell, thereby effectively protecting the electronic components arranged inside the shell. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0028] Figure 1 This is a perspective view of a portion of the structure of the grill machine according to one embodiment of this application;

[0029] Figure 2 This is an exploded view of a portion of the structure of the grill machine according to one embodiment of this application;

[0030] Figure 3 This is a perspective view of a metal disk according to one embodiment of this application;

[0031] Figure 4 This is a top view of a portion of the structure of the grill machine according to one embodiment of this application;

[0032] Figure 5 for Figure 4 Sectional view along axis AA;

[0033] Figure 6 for Figure 5 Enlarged view of part B.

[0034] in,

[0035] 1. Outer shell; 11. Enclosure; 12. Positioning post; 13. Recessed area; 14. Mounting area; 15. Ventilation holes;

[0036] 2. Metal disc; 21. Bottom wall; 22. Side wall; 23. Outward flange; 24. Bending part; 25. Supporting rib; 26. Bracket; 27. Protrusion; 271. Guide ramp;

[0037] 3. Baking tray; 31. Top edge flipping; 32. Convex bump;

[0038] 4. Heating element;

[0039] 5. Insulated space;

[0040] 6. Insulated cavity;

[0041] 7. Heat dissipation cavity;

[0042] 8. Fasteners;

[0043] 9. Insulation gap. Detailed Implementation

[0044] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0045] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced without the specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to unnecessarily obscure aspects of the present application. It can be understood that the embodiments of the present application and the characteristics of the embodiments can be combined with each other under the condition of no conflict.

[0046] In addition, in the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "top", "bottom", "inner", "outer", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0047] In the present application, unless specifically defined and limited otherwise, the terms "mount", "connect", "connection", "fixed", and the like are to be broadly understood, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, or communication; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] As Figure 5 and Figure 6As shown, a grill machine comprises a housing 1 and a grill plate 3, and a metal plate 2 is arranged between the housing 1 and the grill plate 3. The metal plate 2 is provided with a heating element 4 for heating the grill plate 3. The housing 1 is provided with a surrounding wall 11. The metal plate 2 comprises a bottom wall 21, a side wall 22 connected to the bottom wall 21, an outwardly folded edge 23 connected to the side wall 22 and folded outwardly, and a bent portion 24 connected to the outwardly folded edge 23 and bent relative to the outwardly folded edge 23. The lower end of the bent portion 24 is connected to the upper end of the surrounding wall 11. The upper portion of the side wall 22, the outwardly folded edge 23, the bent portion 24 and the top of the surrounding wall 11 form a heat insulation space 5.

[0050] Generally, the grill machine comprises an upper grill plate assembly and a lower grill plate assembly. The upper grill plate assembly comprises a cover body and an upper grill plate arranged on the cover body. The lower grill plate assembly comprises a base and a lower grill plate arranged on the base. The housing and the grill plate are not limited in the present application. In one embodiment, the housing 1 is the cover body, the grill plate 3 is the upper grill plate, and the metal plate 2 in the present application is arranged between the cover body and the upper grill plate. In another embodiment, the housing 1 is the base, the grill plate 3 is the lower grill plate, and the metal plate 2 in the present application is arranged between the base and the lower grill plate. In yet another embodiment, the upper grill plate assembly and the lower grill plate assembly of the grill machine both adopt the arrangement of the housing 1 and the grill plate 3 in the present application, so that the metal plate 2 is arranged in the upper grill plate assembly and the lower grill plate assembly.

[0051] In addition, it should be noted that the present application does not limit whether the grill plate 3 can be taken out of the metal plate 2. Preferably, the grill plate 3 can be taken out of the metal plate 2, so as to facilitate the user to clean the grill plate 3 thoroughly.

[0052] The metal plate 2 in the present application comprises a bottom wall 21 and a side wall 22 which cooperate to form a three-dimensional package for the baking plate 3. During the operation of the baking machine, the heat dissipated from the bottom and the side of the baking plate 3 is reflected back to the baking plate 3 through the bottom wall 21 and the side wall 22, which can greatly reduce the heat loss of the baking plate 3, ensure the heating efficiency of the baking plate 3 on the food, on the other hand, the heat dissipation of the baking plate 3 is reduced, the heat indirectly radiated to the shell 1 is also reduced, and the temperature rise of the shell 1 is also reduced. The reduction of the temperature of the shell 1 reduces the odor during the operation of the baking machine, and improves the user experience. Moreover, the upper part of the side wall 22 of the metal plate 2, the outward turning edge 23, the bending part 24 and the top of the surrounding wall 11 of the shell 1 form a heat insulation space 5. The existence of the heat insulation space 5 can reduce the heat transfer from the metal plate 2 to the surrounding wall 11 of the shell 1, thereby further reducing the temperature rise of the shell 1. From the perspective of material, the demand for heat resistance of the shell 1 can be reduced, thereby reducing the cost of manufacturing the shell 1. In addition, the heat insulation space 5 corresponds to the upper position of the side of the baking plate 3, which is far away from the bottom of the baking plate 3 and has a lower temperature than the other areas of the baking plate 3. The heat insulation space 5 can further reduce heat loss and ensure the temperature of the upper position of the side of the baking plate 3, so that the food is heated more evenly and the cooking effect is improved.

[0053] From another angle, the existence of the heat insulation space 5 can also play a role in rough positioning of the metal plate 2 and the shell 1 during assembly, which helps to improve the assembly efficiency between the two. In addition, the existence of the outward turning edge 23 and the bending part 24 can play a role in structural reinforcement of the upper part of the side wall 22 of the metal plate 2, reducing the probability of deformation of the upper part of the metal plate 2 under stress.

[0054] As a preferred embodiment of the present application, the distance H between the outward turning edge 23 and the top of the surrounding wall 11 satisfies H≥5mm, so as to further reduce the temperature rise of the shell 1, reduce the demand for heat resistance of the shell 1, and make the selection of the shell 1 more diversified.

[0055] The specific structure of the side wall of the metal plate in the present application can adopt any one of the following embodiments:

[0056] Embodiment one: this embodiment one is not shown, in this embodiment one, the inner surface of the side wall of the metal plate is a flat surface, which is not absolutely flat, but relatively flat compared to the protruding part in the following embodiment two and embodiment three.

[0057] Embodiment two: as Figures 1 to 3、 Figure 5 and Figure 6 As shown in Figs. 2 and 3, the side wall 22 is provided with a plurality of protruding portions 27 protruding inwardly of the metal tray 2 along the circumferential direction thereof.

[0058] Embodiment three: the embodiment three is not shown in the drawings, in the embodiment three, the side wall is provided with a ring of protruding portions protruding inwardly of the metal tray along the circumferential direction thereof, and the protruding portions are in a closed ring structure.

[0059] In the embodiments two and three, by providing the protruding portions 27 protruding inwardly of the metal tray 2 on the side wall 22, on the one hand, the gap between the side edge of the baking tray 3 and the side wall 22 of the metal tray 2 can be reduced, so as to reduce the heat exchange between the space in the metal tray 2 and the outside, to ensure the heat efficiency of the baking tray 3, on the other hand, when the baking tray 3 is capable of being taken out of and placed into the metal tray 2, or due to the machining error, assembly error and other factors, the existence of the protruding portions 27 can reduce the contact area between the baking tray 3 and the side wall 22 after the baking tray 3 is placed into the metal tray 2, so as to reduce the contact heat transfer between the baking tray 3 and the side wall 22, which not only reduces the heat loss of the baking tray 3, but also reduces the temperature rise of the metal tray 2, so as to indirectly reduce the temperature rise of the outer shell 1. From the perspective of structure, the existence of the protruding portions 27 can improve the structural strength of the side wall 22 of the metal tray 2, so that the side wall 22 is not easy to deform, and the service life of the metal tray 2 is prolonged.

[0060] The embodiments two and three do not limit the specific structural form of the protruding portions, which can adopt any one of the following embodiments:

[0061] Embodiment one: the embodiment one is not shown in the drawings, in the embodiment one, the protruding portions are in a solid structure.

[0062] Embodiment two: as shown in Figs. 4 and 5, the protruding portions 27 are in a hollow structure, so as to form a heat insulation cavity 6 of the heat insulation space 5 between the side of the protruding portions 27 away from the baking tray 3 and the surrounding wall 11. Figure 5 and Figure 6 As shown in Figs. 4 and 5, the protruding portions 27 are in a hollow structure, so as to form a heat insulation cavity 6 of the heat insulation space 5 between the side of the protruding portions 27 away from the baking tray 3 and the surrounding wall 11. By providing the protruding portions 27 in a hollow structure, the heat insulation cavity 6 can be formed between the protruding portions 27 and the surrounding wall 11, so as to reduce the heat transfer from the metal tray 2 to the surrounding wall 11, thereby reducing the temperature of the outer shell 1. The protruding portions 27 are closer to the baking tray 3 than the upper part of the side wall 22, so the temperature of the protruding portions 27 is higher than that of the upper part of the side wall 22. The communication between the heat insulation cavity 6 and the heat insulation space 5 can realize the heat exchange of the air in the heat insulation cavity 6 and the heat insulation space 5, so that the temperature of the air in the heat insulation space 5 is raised to a certain extent, thereby further improving the heat preservation performance of the heat insulation space 5 for the upper part of the side edge of the baking tray 3. From the perspective of processing, providing the protruding portions 27 in a hollow structure not only facilitates the processing and manufacturing of the metal tray 2, but also reduces the manufacturing cost of the metal tray 2.

[0063] Embodiment two and embodiment three do not limit the shape of the protruding part, which can adopt any of the following embodiments:

[0064] In this embodiment 3, the inner surface of the protruding part is a vertical surface.

[0065] As shown in Figure 5 and Figure 6 , the protruding part 27 is provided with a guide slope 271 gradually away from the surrounding wall 11 from the top end to the bottom end. By providing the guide slope 271 on the protruding part 27, on the one hand, it can facilitate the assembly of the baking tray 3, especially in the implementation mode that the baking tray 3 can be freely taken and placed on the metal tray 2, which facilitates the placement process of the baking tray 3 and improves the centering of the baking tray 3 after placement. On the other hand, the lower part of the protruding part 27 is closer to the baking tray 3 than the upper part of the protruding part 27, resulting in a higher temperature of the lower part of the protruding part 27. By gradually moving the guide slope 271 away from the surrounding wall 11 from the top end to the bottom end, the distance between the high-temperature position of the protruding part 27 and the surrounding wall 11 can be increased, further reducing the temperature rise of the surrounding wall 11.

[0066] As a preferred embodiment of the present application, as shown in Figure 5 , the baking tray 3 is supported on the heating member 4 to form a heat insulation gap 9 between the top flange 31 of the baking tray 3 and the outer flange 23. By supporting the baking tray 3 on the heating member 4, the fit between the baking tray 3 and the heating member 4 can be more closely, realizing contact heat transfer between the two, thereby improving the heating efficiency of the heating member 4 on the baking tray 3. The existence of the heat insulation gap 9 between the top flange 31 of the baking tray 3 and the outer flange 23 of the metal tray 2 can reduce the contact heat transfer between the baking tray 3 and the metal tray 2, thereby indirectly reducing the temperature rise of the outer shell 1. In addition, the existence of the heat insulation gap 9 also facilitates the heat exchange between the top flange 31 of the baking tray 3 and the outside, improving the heat dissipation efficiency of the top flange 31 of the baking tray 3, so that after cooking, the user can hold the top flange 31 of the baking tray 3 to take the baking tray 3.

[0067] As a preferred embodiment of the present embodiment, as shown in Figure 5 , the bottom end surface of the top flange 31 of the baking tray 3 is provided with a plurality of convexes 32 protruding towards the outer flange 23 along the circumference. By providing the convexes 32 on the top flange 31 of the baking tray 3, on the one hand, the structural strength of the top flange 31 of the baking tray 3 can be improved, and the probability of stress deformation can be reduced. On the other hand, the convexes 32 protrude towards the outer flange 23 of the metal tray 2, which can reduce the thickness of the heat insulation gap 9, thereby reducing the heat exchange between the space in the metal tray 2 and the outside air, and ensuring the heat efficiency of the baking tray 3.

[0068] As a preferred embodiment of the present application, as shown in Figures 1 to 3As shown, the bottom wall 21 is provided with a plurality of support ribs 25 protruding inwardly towards the metal tray 2, and the heating element 4 is fixedly installed on the support ribs 25. By protruding the support ribs 25 on the bottom wall 21 of the metal tray 2, the structural strength of the bottom wall 21 of the metal tray 2 can be improved, and the probability of stress deformation of the bottom wall 21 can be reduced. By fixing the heating element 4 on the support ribs 25, the heat transfer from the heating element 4 to the metal tray 2 can be reduced, thereby reducing the heat loss of the heating element 4, allowing more heat to be concentrated to the baking tray 3, and ensuring the heating efficiency of the baking tray 3.

[0069] As a preferred embodiment of the present embodiment, as shown in Figure 1 and Figure 2 the heating element 4 is a heating tube, the heating tube is arranged in a meandering manner, and the support ribs 25 are arranged in a radial manner from the center of the bottom wall 21 to the periphery of the bottom wall 21. The bottom wall 21 is also provided with a bracket 26 for supporting the heating tube between adjacent two support ribs 25, so as to prevent the deformation of the heating tube, ensure the adhesion of the heating tube to the bottom wall 21 of the baking tray 3, and ensure the heating efficiency.

[0070] As a preferred embodiment of the present application, the metal tray 2 is detachably connected to the housing 1 by the fastener 8. By using the fastener 8 to detachably install the metal tray 2 on the housing 1, the assembly between the metal tray 2 and the housing 1 is facilitated, and the replacement cost can be reduced when one of the metal tray 2 and the housing 1 is damaged.

[0071] As a preferred embodiment of the present embodiment, as shown in Figure 2 the bottom of the housing 1 is provided with a plurality of positioning columns 12 extending upwardly, the positioning columns 12 are provided with first mounting holes, the bottom wall 21 is provided with second mounting holes opposite to the first mounting holes in position, and the metal tray 2 is fixedly installed on the positioning columns 12 by the fastener 8 penetrating the first mounting holes and the second mounting holes. The fastener 8 can be a screw. By providing the positioning columns 12 extending upwardly on the bottom of the housing 1 for installing the metal tray 2, the heat insulation distance between the metal tray 2 and the bottom of the housing 1 can be increased, the heat transfer from the metal tray 2 to the bottom of the housing 1 can be reduced, and the temperature rise of the bottom of the housing 1 can be reduced.

[0072] Further, as shown in Figure 5As shown, the bottom of the shell 1 is provided with a sunken area 13 protruding towards the direction away from the bottom wall 21, and the sunken area 13 and the bottom wall 21 enclose a heat dissipation cavity 7, and the sunken area 13 is provided with a plurality of heat dissipation holes 15 communicating the heat dissipation cavity 7 with the outside. By arranging the sunken area 13 away from the bottom wall 21 of the metal disc 2 at the bottom of the shell 1, the heat insulation distance between the bottom part of the shell 1 and the bottom wall 21 of the metal disc 2 can be further increased, and the heat transfer from the metal disc 2 to the bottom of the shell 1 can be reduced. The sunken area 13 and the bottom wall 21 of the metal disc 2 enclose the heat dissipation cavity 7, and the heat dissipation cavity 7 communicates with the outside, so that heat exchange can be formed between the inside and outside of the shell 1, not only the temperature rise of the shell 1 can be reduced, but also the environmental temperature inside the shell 1 can be reduced, thereby effectively protecting the electronic components arranged inside the shell 1.

[0073] As shown in the drawings, Figure 5 The bottom of the shell 1 is also provided with a mounting area 14 arranged around the sunken area 13, and the positioning column 12 is protrudingly arranged on the mounting area 14. Preferably, the mounting area 14 is also provided with a plurality of heat dissipation holes 15 communicating the inside of the shell 1 with the outside.

[0074] The unmentioned parts in the present application can be realized by using or referring to the prior art.

[0075] Each embodiment in the present specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other, and each embodiment mainly describes the difference from other embodiments.

[0076] The above only describes the embodiments of the present application and does not limit the present application, and the technical features or structures in the foregoing different embodiments can be combined as needed to form other specific technical solutions. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A grill machine comprising a housing and a grill plate, a metal plate being provided between the housing and the grill plate, a heating member for heating the grill plate being provided on the metal plate, characterized in that, The outer shell is provided with a surrounding wall, the metal plate comprises a bottom wall, a side wall connected with the bottom wall, an outwardly folded edge connected with the side wall, and a bent portion connected with the outwardly folded edge and bent relative to the outwardly folded edge, the lower end of the bent portion is connected with the upper end of the surrounding wall, and a heat insulation space is formed between the upper portion of the side wall, the outwardly folded edge, the bent portion, and the top of the surrounding wall.

2. The grill according to claim 1, wherein the side wall is provided with a plurality of protruding portions protruding towards the inside of the metal plate along the circumferential direction thereof; or the side wall is provided with a ring of protruding portions protruding towards the inside of the metal plate along the circumferential direction thereof, and the protruding portions have a closed annular structure.

3. The grill according to claim 2, wherein the protruding portions have a hollow structure to form a heat insulation cavity connected with the heat insulation space between the side of the protruding portions away from the grill plate and the surrounding wall.

4. The grill according to claim 2, wherein the protruding portions are provided with guide inclined surfaces gradually away from the surrounding wall from the top end to the bottom end.

5. The grill according to claim 1, wherein the grill plate is supported by the heating element to form a heat insulation gap between the top folded edge of the grill plate and the outwardly folded edge.

6. The grill according to claim 5, wherein the bottom end surface of the top folded edge of the grill plate is provided with a plurality of convexities protruding towards the outwardly folded edge along the circumferential direction thereof.

7. The grill according to claim 1, wherein the bottom wall is provided with a plurality of supporting ribs protruding towards the inside of the metal plate, and the heating element is fixedly installed on the supporting ribs.

8. The grill according to claim 1, wherein the metal plate is detachably connected with the outer shell by fasteners.

9. The grill according to claim 8, wherein the bottom of the outer shell is provided with a plurality of positioning columns extending upwards, the positioning columns are provided with first mounting holes, the bottom wall is provided with second mounting holes opposite to the first mounting holes in position, and the metal plate is fixedly installed on the positioning columns by fasteners passing through the first mounting holes and the second mounting holes.

10. The grill according to claim 1, wherein the bottom of the outer shell is provided with a sunken area protruding towards the direction away from the bottom wall, a heat dissipation cavity is formed between the sunken area and the bottom wall, and the sunken area is provided with a plurality of heat dissipation holes connected with the heat dissipation cavity and the outside.

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