Shell structure of heating disc

Abstract

The utility model discloses a shell structure of a heating disc, which comprises a bottom plate and a heat conduction shell, and is characterized in that the bottom plate comprises a bottom plate body and a reinforcing rib frame structure arranged on the bottom plate body; the periphery of the outer side of the heat conduction shell is connected with the periphery of the outer side of the bottom plate body through a first flanging and riveting structure. The shell is high in structural strength, good in structural stability and not prone to deformation at high temperature, the shell structure cannot be loosened, the rigidity of the whole structure of the heating disc can be well maintained, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of home appliance technology, specifically to a heating plate shell structure. Background Technology

[0002] The heating plate is an indispensable part of an electric hot pot, primarily heating the pot through contact with it. The base plate is a component of the heating plate, mainly serving a supporting and mounting function. Existing base plates, such as the ceramic core heating plate disclosed in utility model patent CN201256451Y, include a ceramic core block with a heating wire installed, the surface of which is covered by a metal panel, and the bottom surface of the ceramic core block has a metal base plate, with the metal base plate and the metal panel connected together by screws. However, the above-mentioned heating plates have the following shortcomings:

[0003] The metal base plate of the heating plate has a flat structure, which results in insufficient strength and poor structural stability, making it unable to maintain the rigidity of the overall structure of the heating plate. When the heating plate is operating at a high temperature, the metal base plate will expand due to heat. Due to insufficient strength, it is prone to severe deformation and bulging, which will damage the connection between the metal base plate and the metal panel. The screws are easy to loosen, causing the metal base plate to separate from the metal panel and damage the entire heating plate. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned problems and provide a heating plate shell structure. This shell structure has high strength, good structural stability, is not easily deformed at high temperatures, and will not cause the shell structure to loosen. It can maintain the rigidity of the overall structure of the heating plate, improve service life, and is suitable for ultra-high temperature heating plates.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A heating plate housing structure includes a base plate and a heat-conducting shell. The base plate includes a base plate body and a reinforcing rib frame structure disposed on the base plate body. The outer periphery of the heat-conducting shell is connected to the outer periphery of the base plate body by a first riveting structure.

[0007] The working principle of the outer shell structure of the above heating plate is as follows:

[0008] Setting a reinforcing rib frame structure on the base plate body can improve the strength of the base plate body, thereby improving the overall strength of the base plate; making the overall structure of the base plate very stable. At the same time, the first riveting structure can strengthen the base plate and the heat-conducting shell, and can stably fasten the base plate and the heat-conducting shell together. Under high temperature, the base plate and the heat-conducting shell are not easy to deform. The first riveting structure can achieve a 360-degree connection between the heat-conducting shell and the outer perimeter of the base plate body, with strong connection stability and not easy to loosen.

[0009] In a preferred embodiment of this utility model, the first riveting structure includes a first flange disposed on the outer periphery of the heat-conducting shell and turned inward, the first flange covering the outer periphery of the base plate body. In the above structure, the first flange covering the outer periphery of the base plate body allows it to firmly hold the outer periphery of the base plate body in place. When the base plate and the heat-conducting shell deform, the first flange can effectively hold the base plate body in place, preventing the base plate and the heat-conducting shell from loosening, thus improving the stability of the structure. Furthermore, the first flange also acts as a reinforcing rib, improving the structural strength of the heat-conducting shell.

[0010] Preferably, the reinforcing rib frame structure includes multiple radial reinforcing ribs extending in the radial direction and at least one circumferential reinforcing rib extending in the circumferential direction; the multiple radial reinforcing ribs are distributed along the circumferential direction. This reinforcing rib frame structure, formed by the radial and circumferential reinforcing ribs, can improve the strength of the base plate body, thereby increasing the overall strength of the base plate; the multiple radial reinforcing ribs distributed along the circumferential direction, in conjunction with the circumferential reinforcing ribs, can improve the strength in both the radial and circumferential directions, making the overall structure of the base plate very stable; thus maintaining the rigidity of the overall structure of the heating plate and preventing the base plate from easily deforming due to excessive temperature.

[0011] Preferably, both the heat-conducting shell and the base plate are annular in shape; the inner periphery of the heat-conducting shell and the inner periphery of the base plate are connected by a second riveting structure. The second riveting structure enables a 360-degree connection between the inner periphery of the heat-conducting shell and the base plate, and the second riveting structure, in conjunction with the first riveting structure, further improves the connection stability between the base plate and the heat-conducting shell.

[0012] Preferably, the second riveting structure includes a second flange that is disposed on the inner periphery of the heat-conducting shell and folds outward, the second flange covering the inner periphery of the base plate body. In the above structure, the second flange covering the inner periphery of the base plate body allows the second flange to firmly hold the inner periphery of the base plate body in place. When the base plate and the heat-conducting shell deform, the second flange can effectively hold the base plate body in place. When it expands or bulges due to heat, the first flange and the second flange can hold the inner and outer peripheries of the base plate body in place, preventing the base plate from loosening from the heat-conducting shell, further improving the stability of the structure. The second flange also acts as a reinforcing rib, improving the structural strength of the heat-conducting shell. In the prior art, the heat-conducting shell and the base plate are usually connected by screws. Screw connections are prone to loosening, and the sealing between the heat-conducting shell and the base plate is poor, resulting in poor waterproofing. In this invention, the first flange folds inward and the second flange folds outward, which can improve the waterproofing effect.

[0013] Preferably, the first flange is an outwardly bent portion formed by bending the outer periphery of the heat-conducting shell inward and upward, and the outer periphery of the base plate body is provided with a downwardly extending outward extension, which extends into the outwardly bent portion; the second flange is an inwardly bent portion formed by bending the inner periphery of the heat-conducting shell inward; the inner periphery of the base plate body is provided with a downwardly extending inward extension, which extends into the outwardly bent portion. In the above structure, the outwardly bent portion fastens the outwardly extending portion, and the inwardly bent portion fastens the inwardly extending portion, thereby achieving a sealed and fixed connection between the base plate and the heat-conducting shell, with high connection stability and not easy to loosen. The outwardly bent portion faces inward, and the inwardly bent portion faces outward, which can improve the waterproof effect.

[0014] Preferably, there are multiple circumferential reinforcing ribs, which are distributed along the radial direction; the circumferential reinforcing ribs are interconnected with the radial reinforcing ribs. The distribution of multiple circumferential reinforcing ribs along the radial direction can improve the circumferential and radial strength, and their interconnection makes the structure more stable and less prone to deformation under heat.

[0015] Preferably, the base plate body and the reinforcing rib frame structure are an integral structure. In the above structure, the base plate is directly formed from raw materials to form an integral structure, which reduces the number of parts, simplifies the structure, and facilitates processing. The integral structure also improves the overall strength of the base plate, thereby increasing its service life. Furthermore, the base plate body is provided with a grounding structure, which is integrally formed with the base plate, further reducing the number of parts, simplifying the structure, and lowering costs.

[0016] Preferably, the multiple radial stiffeners are divided into several long radial stiffeners and several short radial stiffeners; the length of the long radial stiffeners is greater than the length of the short radial stiffeners, and the long and short radial stiffeners are alternately distributed along the circumferential direction. Since the multiple radial stiffeners are distributed along the circumferential direction, i.e., radially, the distance between two adjacent radial stiffeners further away from the center of the base plate increases, and the strength decreases. Therefore, by alternating the distribution of long and short radial stiffeners, the structural strength of the outer end of the base plate can be ensured, making the distribution of radial stiffeners throughout the base plate more uniform, thus making the strength of the base plate more uniform and improving its stability.

[0017] Preferably, the radius of each circumferential stiffener increases in the radial direction away from the center of the base plate. This is to make the strength of the base plate more uniform, thereby improving its stability.

[0018] Preferably, the number of radial stiffeners is 12, including 6 long radial stiffeners and 6 short radial stiffeners; the number of circumferential stiffeners is 2; each long radial stiffener intersects with two circumferential stiffeners, and each short radial stiffener intersects with one circumferential stiffener away from the center of the base plate. In the above structure, the short radial stiffeners do not intersect with one circumferential stiffener near the center of the base plate; by setting the above number of radial and circumferential stiffeners, the structural strength of the base plate can be effectively improved, ensuring that the internal and external strength of the base plate are basically consistent, thereby improving the stability of the base plate.

[0019] Preferably, the radial reinforcing rib is a radial protrusion that is disposed at the bottom of the base plate body and protrudes downward, and the circumferential reinforcing rib is a circumferential protrusion that is disposed at the bottom of the base plate body and protrudes downward. By setting radial protrusions to form radial reinforcing ribs and circumferential protrusions to form circumferential reinforcing ribs, processing is facilitated, and the structural strength of the base plate can be greatly improved by the deformation of the protrusions.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The outer shell structure of the heating plate in this invention features a reinforcing rib frame structure on the base plate body, which enhances the strength of the base plate body and thus the overall structure of the base plate. This makes the overall structure of the base plate very stable. At the same time, the first riveting structure strengthens the base plate and the heat-conducting shell, and can stably fasten the base plate and the heat-conducting shell together, improving the overall strength of the outer shell structure. Under high temperatures, the base plate and the heat-conducting shell are not prone to deformation. The first riveting structure can achieve a 360-degree connection around the outer perimeter of the heat-conducting shell and the base plate body, with strong connection stability and not easy to loosen. It can maintain the rigidity of the overall structure of the heating plate well, improve service life, and is suitable for ultra-high temperature heating plates. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the outer shell structure of a heating plate according to the present invention.

[0023] Figure 2 This is a three-dimensional structural diagram of the outer shell structure of a heating plate according to this utility model from another perspective.

[0024] Figure 3 This is a cross-sectional view of the outer shell structure of a heating plate according to the present invention.

[0025] Figure 4 for Figure 3 A magnified view of a portion of the image.

[0026] Figure 5 This is a three-dimensional structural diagram of the heat-conducting shell in this utility model.

[0027] Figure 6 This is a top view of the base plate in this utility model.

[0028] Figure 7 This is a three-dimensional structural diagram of the base plate in this utility model.

[0029] Figure 8 This is a three-dimensional structural diagram of the base plate of this utility model from another perspective. Detailed Implementation

[0030] To enable those skilled in the art to fully understand the technical solution of this utility model, the present utility model will be further described below in conjunction with the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0031] Example 1

[0032] See Figures 1-8 This embodiment discloses a heating plate outer shell structure, including a base plate 100 and a heat-conducting shell 9. The base plate 100 includes a base plate body 1 and a reinforcing rib frame structure disposed on the base plate body 1. The outer periphery of the heat-conducting shell 9 is connected to the outer periphery of the base plate body 1 by a first riveting structure 10. Existing metal base plates and metal panels are not suitable for ultra-high temperature heating plates. The outer shell structure of this embodiment has high strength, is not easily deformed at high temperatures, and can be used for ultra-high temperature heating plates with heating plate temperatures exceeding 600 degrees Celsius.

[0033] See Figures 1-8The first riveting structure 10 includes a first flange 10-1 disposed on the outer periphery of the heat-conducting shell 9 and turned inward, the first flange 10-1 covering the outer periphery of the base plate body 1. In the above structure, the first flange 10-1 covers the outer periphery of the base plate body 1, so that the first flange 10-1 can firmly fasten the outer periphery of the base plate body 1. When the base plate 100 and the heat-conducting shell 9 deform, the first flange 10-1 can well fasten the base plate body 1, so that the base plate 100 and the heat-conducting shell 9 will not loosen, improving the stability of the structure. In addition, the first flange 10-1 can also act as a reinforcing rib, improving the structural strength of the heat-conducting shell 9.

[0034] See Figures 6-8 The reinforcing rib frame structure includes multiple radial reinforcing ribs 2 extending in the radial direction and at least one circumferential reinforcing rib 3 extending in the circumferential direction; the multiple radial reinforcing ribs 2 are evenly distributed along the circumferential direction. This reinforcing rib frame structure, formed by the radial reinforcing ribs 2 and the circumferential reinforcing ribs 3, can improve the strength of the base plate body 1, thereby improving the strength of the base plate 100; the multiple radial reinforcing ribs 2 distributed along the circumferential direction, in conjunction with the circumferential reinforcing ribs 3, can improve the strength in both the radial and circumferential directions, making the overall structure of the base plate 100 very stable; thus maintaining the rigidity of the overall structure of the heating plate.

[0035] See Figures 1-8 Both the heat-conducting shell 9 and the base plate 100 are annular in shape; the inner periphery of the heat-conducting shell 9 and the inner periphery of the base plate body 1 are connected by a second riveting structure 11. The second riveting structure 11, in conjunction with the first riveting structure 10, further improves the connection stability between the base plate 100 and the heat-conducting shell 9.

[0036] See Figures 1-8The second riveting structure 11 includes a second flange 10-2 disposed on the inner periphery of the heat-conducting shell 9 and turned outward, the second flange 10-2 covering the inner periphery of the base plate body 1. In the above structure, the second flange 10-2 covers the inner periphery of the base plate body 1, so that the second flange 10-2 can firmly fasten the inner periphery of the base plate body 1. When the base plate 100 and the heat-conducting shell 9 deform, the second flange 10-2 can well fasten the base plate body 1. When it expands or bulges due to heat, the first flange 10-1 and the second flange 10-2 can fasten the inner and outer peripheries of the base plate body 1, so that the base plate 100 and the heat-conducting shell 9 will not loosen, further improving the stability of the structure. In addition, the second flange 10-2 can also act as a reinforcing rib, improving the structural strength of the heat-conducting shell 9. In the prior art, the heat-conducting shell 9 and the base plate 100 are usually connected by screws. Screws are easy to loosen and the heat-conducting shell and the base plate have poor sealing and waterproof effect. In this embodiment, the first flange 10-1 is turned inward and the second flange 10-2 is turned outward, which can improve the waterproof effect.

[0037] See Figures 1-8 The first flange 10-1 is an outer bend formed by bending the outer periphery of the heat-conducting shell 9 inward and upward. The outer periphery of the base plate body 1 has a downwardly extending outer extension 1-1, which extends into the outer bend. The second flange 10-2 is an inner bend formed by bending the inner periphery of the heat-conducting shell 9 inward. There are three types of inward bending: inward and downward, inward and horizontal, and inward and upward. The inner periphery of the base plate body 1 has a downwardly extending inner extension 1-2, which extends into the outer bend. In this structure, the outer bend secures the outer extension 1-1, and the inner bend secures the inner extension 1-2, thereby achieving a sealed and fixed connection between the base plate 100 and the heat-conducting shell 9. The connection is highly stable and not easily loosened. The inward bending of the outer bend and the outward bending of the inner bend improves the waterproofing effect.

[0038] See Figures 6-8 The circumferential reinforcing ribs 3 are multiple, and the multiple circumferential reinforcing ribs 3 are distributed along the radial direction; the circumferential reinforcing ribs 3 are interconnected with the radial reinforcing ribs 2. The multiple circumferential reinforcing ribs 3 distributed along the radial direction can improve the circumferential and radial strength, and their interconnection makes the structure more stable.

[0039] See Figures 6-8The base plate body 1 and the reinforcing frame structure are an integral unit. In this structure, the base plate is directly molded from raw materials to form an integral structure, which reduces the number of parts, simplifies the structure, and facilitates processing. The integral structure also improves the overall strength of the base plate, thereby increasing its service life. Furthermore, the base plate body 1 is equipped with a grounding structure, which is integrally molded with the base plate, further reducing the number of parts, simplifying the structure, and lowering costs.

[0040] See Figures 6-8 The multiple radial stiffeners 2 are evenly divided into several long radial stiffeners 2-1 and several short radial stiffeners 2-2. The length of the long radial stiffeners 2-1 is greater than the length of the short radial stiffeners 2-2. The long radial stiffeners 2-1 and short radial stiffeners 2-2 are alternately distributed along the circumferential direction. Since the multiple radial stiffeners 2 are distributed along the circumferential direction, that is, in a radial distribution, the distance between two adjacent radial stiffeners 2 further away from the center of the base plate body 1 will become larger and larger, and the strength will become lower and lower. Therefore, by alternating the distribution of long radial stiffeners 2-1 and short radial stiffeners 2-2, the structural strength of the outer end of the base plate body 1 can be guaranteed, making the radial stiffeners 2 of the entire base plate body 1 more evenly distributed, making the strength of the base plate more uniform, thereby improving the stability of the base plate.

[0041] See Figures 6-8 In the radial direction away from the center of the base plate 1, the radius of each circumferential stiffener 3 increases. The purpose is to make the strength of the base plate more uniform, thereby improving the stability of the base plate.

[0042] See Figures 6-8 The circumferential reinforcing rib 3 extends 360° in the circumferential direction. It has a wide coverage area and a more stable structure.

[0043] See Figures 6-8 The radial stiffeners 2 consist of 12 ribs, including 6 long radial stiffeners 2-1 and 6 short radial stiffeners 2-2; the circumferential stiffeners 3 consist of 2 ribs. Each long radial stiffener 2-1 intersects with two circumferential stiffeners 3, and each short radial stiffener 2-2 intersects with one circumferential stiffener 3 away from the center of the base plate body 1. In this structure, the short radial stiffeners 2-2 do not intersect with one circumferential stiffener 3 near the center of the base plate body 1. By setting the above number of radial stiffeners 2 and circumferential stiffeners 3, the structural strength of the base plate can be effectively improved, ensuring that the internal and external strength of the base plate remains basically consistent, thereby improving the stability of the base plate.

[0044] See Figures 6-8 The width of the long radial stiffener 2-1 gradually decreases along the radial direction away from the center of the base plate body 1.

[0045] See Figures 6-8 The radial reinforcing rib 2 is a radial protrusion 4 that is set at the bottom of the base plate body 1 and protrudes downward, and the circumferential reinforcing rib 3 is a circumferential protrusion 5 that is set at the bottom of the base plate body 1 and protrudes downward. By setting the radial protrusion 4 to form the radial reinforcing rib 2 and the circumferential protrusion 5 to form the circumferential reinforcing rib 3, it is easy to process, and the structural strength of the base plate can be greatly improved by the deformation of the protrusions.

[0046] See Figures 6-8 The top of the base plate body 1 has a downwardly recessed radial groove at a position corresponding to the radial protrusion 4, and the top of the base plate body 1 has a downwardly recessed circumferential groove at a position corresponding to the circumferential protrusion 5. The radial groove and the circumferential groove are interconnected. In the above structure, after the base plate body 1 is stamped, the downwardly recessed radial groove can form the radial protrusion 4, and the downwardly recessed circumferential groove can form the circumferential protrusion 5. The base plate has a shell-like structure, which is very simple to process and easy to produce.

[0047] See Figures 6-8 The base plate body 1 is also provided with two clearance holes 8, which are used to avoid the terminals of the heating component.

[0048] See Figures 1-8 The outer bending portion (first flange 10-1) and the inner bending portion (second flange 10-2) are both U-shaped flange structures. In the above structure, the U-shaped flange structure can effectively fasten the outer extension 1-1 and the inner extension 1-2. During production, the base plate 100 can be fitted into the heat-conducting shell 9 first, and the lower end of the outer side wall of the heat-conducting shell 9 can be folded over by the equipment to fasten the outer extension 1-1, and the lower end of the inner side wall of the heat-conducting shell 9 can be folded over to fasten the inner extension 1-2; thus forming two U-shaped flange structures respectively.

[0049] See Figures 1-8 A cavity 6 is provided between the heat-conducting shell 9 and the base plate 100. The heating plate includes a heating component for heating. The heating component is disposed in the cavity 6. The heat generated by the heating component is transferred to the heat-conducting shell 9, and the cookware is heated through the heat-conducting shell 9.

[0050] See Figures 1-8 The long radial reinforcing rib 2-1 extends from the inner extension 1-2 to the outer extension 1-1.

[0051] The above are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A heating plate outer shell structure, characterized in that, It includes a base plate and a heat-conducting shell. The base plate includes a base plate body and a reinforcing rib frame structure disposed on the base plate body. The outer periphery of the heat-conducting shell is connected to the outer periphery of the base plate body through a first riveting structure.

2. The outer shell structure of a heating plate according to claim 1, characterized in that, The first riveting structure includes a first flange disposed on the outer periphery of the heat-conducting shell and turned inward, the first flange covering the outer periphery of the base plate body.

3. The outer shell structure of a heating plate according to claim 1, characterized in that, The reinforcing frame structure includes a plurality of radial reinforcing ribs extending in the radial direction and at least one circumferential reinforcing rib extending in the circumferential direction; the plurality of radial reinforcing ribs are distributed along the circumferential direction.

4. The outer shell structure of a heating plate according to claim 2, characterized in that, Both the heat-conducting shell and the base plate are annular in shape; the inner perimeter of the heat-conducting shell and the inner perimeter of the base plate body are connected by a second riveting structure.

5. The outer shell structure of a heating plate according to claim 4, characterized in that, The second riveting structure includes a second flange disposed on the inner periphery of the heat-conducting housing and turned outward, the second flange covering the inner periphery of the base plate body.

6. The outer shell structure of a heating plate according to claim 5, characterized in that, The first flange is an outwardly bent portion formed by bending the outer periphery of the heat-conducting shell inward and upward. The outer periphery of the base plate body is provided with a downwardly extending outward extension, which extends into the outwardly bent portion. The second flange is an inwardly bent portion formed by bending the inner periphery of the heat-conducting shell inward. The inner periphery of the base plate body is provided with a downwardly extending inward extension, which extends into the outwardly bent portion.

7. The outer shell structure of a heating plate according to claim 3, characterized in that, The number of circumferential reinforcing ribs is multiple, and the multiple circumferential reinforcing ribs are distributed along the radial direction; the circumferential reinforcing ribs and the radial reinforcing ribs are interconnected.

8. The outer shell structure of a heating plate according to claim 1, characterized in that, The base plate and the reinforcing frame structure are an integral structure.

9. The outer shell structure of a heating plate according to claim 3, characterized in that, The multiple radial stiffeners are divided into several long radial stiffeners and several short radial stiffeners; the length of the long radial stiffeners is greater than the length of the short radial stiffeners, and the long radial stiffeners and short radial stiffeners are alternately distributed along the circumferential direction.

10. The outer shell structure of a heating plate according to claim 3, characterized in that, The radial reinforcing rib is a radial protrusion that is set at the bottom of the base plate body and protrudes downward, and the circumferential reinforcing rib is a circumferential protrusion that is set at the bottom of the base plate body and protrudes downward.

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