Heating disc structure and electric heating equipment

Abstract

The utility model discloses a heating disc structure and an electric heating device, the heating disc structure comprises a heating disc used for heating and a panel assembly arranged at the lower end of the heating disc, and the bottom of the outer edge of the heating disc is attached to the upper surface of the panel assembly to form a waterproof supporting structure. The structure is not only high in heating efficiency, but also good in waterproof effect, can play a good role in protecting electrical elements, and improves the use safety.

Description

Technical Field

[0001] This utility model relates to the field of kitchen utensils technology, specifically to a heating plate structure and an electric heating device. Background Technology

[0002] Electric heating equipment, such as electric furnaces, is connected to a power source via an external connection cable. It uses external power to heat the heating plate structure and features simple structure, lightweight, clean and pollution-free operation, and high degree of automation.

[0003] Existing heating plate structures mainly consist of a heating plate and a panel. To quickly transfer heat from the heating plate to the cookware, the panel is positioned below the heating plate, allowing direct contact between the heating plate and the cookware. However, existing heating plates typically have a gap between them, which allows water to easily enter the heating plate structure during use, potentially damaging internal electrical components and resulting in poor waterproofing. Utility Model Content

[0004] The purpose of this invention is to overcome the aforementioned problems and provide a heating plate structure that not only has high heating efficiency but also good waterproof performance, providing excellent protection for electrical components and improving safety during use.

[0005] Another objective of this invention is to provide an electric heating device that includes the above-described heating plate structure.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A heating plate structure includes a heating plate for generating heat and a panel assembly disposed at the lower end of the heating plate, wherein the bottom outer edge of the heating plate is attached to the upper surface of the panel assembly to form a waterproof support structure.

[0008] The working principle of the above heating plate structure is as follows:

[0009] The outer bottom edge of the heating plate is bonded to the upper surface of the panel assembly to form a waterproof support structure. This means there is no gap between the outer bottom edge of the heating plate and the upper surface of the panel assembly, creating a waterproof support structure that not only supports the heating plate but also prevents water from flowing between the heating plate and the panel assembly, providing excellent protection for electrical components. Furthermore, the heating plate is positioned at the top of the panel assembly, allowing it to directly contact the cookware during use, improving heating efficiency. Additionally, the small contact area between the outer bottom edge of the heating plate and the upper surface of the panel assembly reduces heat transfer from the heating plate to the panel assembly.

[0010] In a preferred embodiment of this utility model, the outer edge of the heating plate has a downwardly extending portion, the bottom of which is in contact with the panel assembly in a surface-to-surface fit. In this structure, the bottom of the extending portion and the upper surface of the panel assembly are in a surface-to-surface fit, which improves the sealing performance and thus enhances the waterproof effect. By providing the extending portion, the heating plate can be supported, and the contact area can be reduced, thereby reducing heat loss from the heating plate.

[0011] Preferably, the panel assembly includes a mica plate and a stainless steel plate, with the bottom of the extension abutting (contact connection) to the upper surface of the mica plate; the stainless steel plate covers the mica plate and is located outside the waterproof support structure, with a gap between the stainless steel plate and the extension. Using this structure, the mica plate possesses excellent insulation and high-temperature resistance, with a fire resistance temperature reaching 500℃~750℃, and it maintains its performance even at high temperatures. Furthermore, the mica plate also has low thermal conductivity, oil and corrosion resistance, and is environmentally friendly and non-toxic; the low thermal conductivity reduces heat loss from the heating element; the stainless steel plate protects the mica plate, and since the outer surface of the mica plate is not of high color or quality, the stainless steel plate also provides some decorative effect; the gap between the stainless steel plate and the heating element prevents heat transfer from the heating element to the stainless steel plate, preventing heat loss and avoiding burns when touching the stainless steel plate.

[0012] Preferably, the stainless steel plate has a clearance hole in the middle, and the extension of the heating plate passes through the clearance hole and contacts the mica plate. The space between the outer side of the extension and the inner wall of the clearance hole forms the gap. The clearance hole can effectively prevent direct contact between the stainless steel plate and the heating plate.

[0013] Preferably, the heating plate structure further includes a bottom shell disposed at the lower end of the panel assembly. Electrical components can be installed inside the bottom shell, which protects the electrical components and also provides fixed support for the panel assembly.

[0014] Preferably, a first heat-insulating pad is provided between the stainless steel plate and the mica plate, and a second heat-insulating pad is provided between the mica plate and the bottom shell. In the above structure, by providing the first and second heat-insulating pads, heat from the mica plate is prevented from being transferred to the stainless steel plate and the bottom shell, preventing burns and damage to the bottom shell and its internal electrical components. The stainless steel plate and the mica plate can be completely separated by the first heat-insulating pad. In another embodiment, to make the overall structure more compact, the inner edge of the stainless steel plate is inclined downwards against the mica plate after passing through the first heat-insulating pad. In the above structure, the contact area between the inner edge of the stainless steel plate and the mica plate is very small, and heat will not be quickly transferred to the stainless steel plate, so there is no risk of burns during use.

[0015] Preferably, the panel assembly includes a microcrystalline glass plate and a mica plate, with the microcrystalline glass plate disposed between the heating plate and the mica plate, and the bottom of the extension portion abutting (contact connection) with the upper surface of the microcrystalline glass plate. In the above structure, the heating plate and the microcrystalline glass plate are in direct contact, which can provide a sealing and waterproof function. The microcrystalline glass plate has a good decorative effect. A layer of mica plate is placed under the microcrystalline glass plate, which can provide electrical safety protection when the microcrystalline glass plate breaks. It can also support the heating plate and reduce the contact area, thereby reducing heat loss from the heating plate.

[0016] Preferably, the bottom of the heating plate has an upwardly recessed groove. This is to reduce the contact area between the heating plate and the panel assembly, thereby reducing heat loss.

[0017] Preferably, the groove is an annular groove, and the extension is located outside the annular groove. In the above structure, the groove is an annular groove, so that the outer edge of the heating plate forms an annular outer edge, that is, an annular extension. When it is in direct contact with the panel assembly, the contact area is greatly reduced, thereby reducing heat transfer.

[0018] Preferably, the heating plate and the panel assembly are fixedly connected by screws. By using screws, the heating plate and the panel assembly can be fastened together, improving the sealing and stability of the connection.

[0019] Preferably, the top of the groove has a downward-protruding protrusion with a threaded hole. The screw passes through the mica plate and connects to the threaded hole. The protrusion facilitates the machining of the threaded hole. Simultaneously, the screw connection reduces the contact area, thereby reducing heat loss. Furthermore, the contact between the screw and the mica plate prevents the screw's heat from being rapidly conducted to the mica plate, further reducing heat loss.

[0020] An electric heating device includes the heating plate structure.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] 1. The heating plate structure in this utility model has a contact connection between the heating plate and the panel assembly, that is, there is no gap between the heating plate and the panel assembly, which can prevent water from flowing in from between the heating plate and the panel assembly, and has a good waterproof effect, so as to play a good protective role for electrical components and improve the safety of use.

[0023] 2. The heating plate structure in this utility model has the heating plate set on the upper part of the panel assembly. When in use, the heating plate can directly contact the pot, thereby improving heating efficiency.

[0024] 3. In the heating plate structure of this utility model, the bottom edge of the heating plate contacts the upper surface of the panel assembly, and the contact area is small, which can reduce the heat transfer of the heating plate to the panel assembly. Attached Figure Description

[0025] Figure 1 This is a top view of the first specific embodiment of a heating plate structure according to the present invention.

[0026] Figure 2 This is a cross-sectional view of a first specific embodiment of a heating plate structure according to the present invention.

[0027] Figure 3 for Figure 2 A magnified view of a portion of the image.

[0028] Figure 4 This is a top view of a second specific embodiment of a heating plate structure according to the present invention.

[0029] Figure 5 This is a cross-sectional view of a second specific embodiment of a heating plate structure in this utility model.

[0030] Figure 6 for Figure 5 A magnified view of a portion of the image. Detailed Implementation

[0031] 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.

[0032] Example 1

[0033] See Figures 1-3 This embodiment discloses a heating plate structure, including a heating plate 1 for generating heat and a panel assembly disposed at the lower end of the heating plate 1. The bottom outer edge of the heating plate 1 is attached to the upper surface of the panel assembly to form a waterproof support structure. That is, the heating plate 1 and the panel assembly are in contact connection, which can eliminate the possibility of water flowing into the heating plate 1 and the panel assembly.

[0034] See Figures 1-3 The heating plate 1 has a downwardly extending extension 1-3 on its outer edge. The bottom of the extension 1-3 is in contact with the panel assembly, and the two are in a surface-to-surface contact. In the above structure, the bottom of the extension 1-3 and the upper surface of the panel assembly are in a surface-to-surface contact (direct contact connection), which can improve the sealing performance and thus improve the waterproof effect. By setting the extension 1-3, the heating plate 1 can be supported, and the contact area can be reduced, thereby reducing the heat loss of the heating plate 1.

[0035] See Figures 1-3 The heating plate structure also includes a bottom shell 6 disposed at the lower end of the panel assembly. Electrical components can be installed inside the bottom shell 6. The bottom shell 6 can protect the electrical components and also fix the panel assembly.

[0036] See Figures 1-3 The panel assembly includes a mica plate 2 and a stainless steel plate 3. The bottom of the extension 1-3 is in contact with the upper surface of the mica plate 2 (directly connected). The stainless steel plate 3 is placed on the mica plate 2 and located outside the waterproof support structure. A gap 4 exists between the stainless steel plate 3 and the extension 1-3. With the above structure, the mica plate 2 has excellent insulation properties and high temperature resistance, with a fire resistance temperature of 500℃~750℃, and can maintain its performance at high temperatures. In the prior art, the gap between the heating plate and the panel is to prevent heat from the heating plate from being transferred to the panel. In this embodiment, the mica plate 2 also has the characteristics of low thermal conductivity, oil and corrosion resistance, and environmental friendliness and non-toxicity. The low thermal conductivity can reduce the heat loss of the heating plate 1, thereby reducing heat transfer. By setting the stainless steel plate 3, the mica plate 2 can be protected. The outer surface of the mica plate 2 is not of high color and quality, and the stainless steel plate 3 can also play a certain decorative role. The gap 4 between the stainless steel plate 3 and the heating plate 1 can prevent the heat of the heating plate 1 from being transferred to the stainless steel plate 3, prevent heat loss, and prevent burns when touching the stainless steel plate 3.

[0037] See Figures 1-3 The stainless steel plate 3 has a clearance hole in the middle. The extension 1-3 of the heating plate 1 passes through the clearance hole and contacts the mica plate 2. The space between the outer side of the extension 1-3 and the inner wall of the clearance hole forms the gap 4. The clearance hole can effectively prevent direct contact between the stainless steel plate 3 and the heating plate 1.

[0038] See Figures 1-3 A first heat-insulating pad 8 is provided between the stainless steel plate 3 and the mica plate 2, and a second heat-insulating pad 9 is provided between the mica plate 2 and the bottom shell 6. In the above structure, by setting the first heat-insulating pad 8 and the second heat-insulating pad 9, heat from the mica plate 2 is prevented from being transferred to the stainless steel plate 3 and the bottom shell 6, preventing burns and damage to the bottom shell 6 and its internal electrical components. The stainless steel plate 3 and the mica plate 2 can be completely separated by the first heat-insulating pad 8. In another embodiment, to make the entire structure more compact, the inner edge of the stainless steel plate 3 is inclined downwards and rests against the mica plate 3 after passing through the first heat-insulating pad 8. In the above structure, the contact area between the inner edge of the stainless steel plate 3 and the mica plate 2 is very small, and heat will not be quickly transferred to the stainless steel plate 3, so there is no risk of burns during use.

[0039] See Figures 1-3The first heat insulation pad 8 and the second heat insulation pad 9 are made of materials with a thermal conductivity of 0.012 to 0.017 W / mK. In this embodiment, the first heat insulation pad 8 and the second heat insulation pad 9 are porous vacuum silicon sheets.

[0040] See Figures 1-3 The bottom of the heating plate 1 is provided with an upwardly recessed groove 1-1. The purpose is to reduce the contact area between the heating plate 1 and the panel assembly, thereby reducing heat loss.

[0041] See Figures 1-3 The groove 1-1 is an annular groove, and the extension 1-3 is located outside the annular groove. In the above structure, the groove 1-1 is an annular groove, so that the outer edge of the heating plate 1 forms an annular outer edge, that is, an annular extension 1-3. When it is in direct contact with the panel assembly, the contact area is greatly reduced, thereby reducing heat transfer. Direct contact means that the bottom surface of the extension 1-3 is in direct contact with the top end face (upper surface) of the mica plate 2.

[0042] See Figures 1-3 The heating plate 1 and the panel assembly are fixedly connected by screws 5. By using screws 5, the heating plate 1 and the panel assembly can be fastened together, improving the sealing and stability of the connection.

[0043] See Figures 1-3 The top of the groove 1-1 is provided with a downwardly protruding protrusion 1-2, and the protrusion 1-2 is provided with a threaded hole. The screw 5 passes through the mica plate 2 and connects to the threaded hole. By setting the protrusion 1-2, it is easier to process the threaded hole. At the same time, the connection by the screw 5 can reduce the contact area, thereby reducing heat loss. The contact between the screw 5 and the mica plate 2 prevents the heat of the screw 5 from being quickly conducted to the mica plate 2, further reducing heat loss.

[0044] The heating plate 1 is a ring-shaped heating plate. The mica plate 2, the first heat insulation pad 8, the second heat insulation pad 9, and the stainless steel plate 3 are all coaxially arranged with the heating plate 1. The first heat insulation pad 8, the mica plate 2, and the second heat insulation pad 9 are connected in one piece and set together on the stepped part of the bottom shell 6.

[0045] See Figures 1-3 The stainless steel plate 3 is bent downwards on the outside, covering the upper end of the bottom shell 6, which provides good protection.

[0046] See Figures 1-3 The working principle of the above heating plate structure is as follows:

[0047] The outer bottom edge of the heating plate 1 is bonded to the upper surface of the panel assembly to form a waterproof support structure. That is, the outer bottom edge of the heating plate 1 is in contact with the upper surface of the panel assembly, with no gap between them. This waterproof support structure not only supports the heating plate 1 but also prevents water from flowing between it and the panel assembly, providing excellent protection for electrical components. Furthermore, since the heating plate 1 is positioned at the top of the panel assembly, it can directly contact the cookware during use, improving heating efficiency. Additionally, the small contact area between the outer bottom edge of the heating plate 1 and the upper surface of the panel assembly reduces heat transfer from the heating plate to the panel assembly.

[0048] Example 2

[0049] See Figures 4-6 In this embodiment, the other structures are the same as in Embodiment 1, except that the panel assembly includes a microcrystalline glass plate 7 and a mica plate 2. The microcrystalline glass plate 7 is disposed between the heating plate 1 and the mica plate 2, and the bottom of the extension 1-3 is in contact with the upper surface of the microcrystalline glass plate 7. In the above structure, the heating plate 1 and the microcrystalline glass plate 7 are in direct contact, which can play a role in sealing and waterproofing. The microcrystalline glass plate 7 has a good decorative effect. A layer of mica plate 2 is placed under the microcrystalline glass plate 7. When the microcrystalline glass plate 7 is broken, the mica plate 2 can provide electrical safety protection. That is, the mica plate 2 is a mica protective plate. At the same time, the extension 1-3 can support the heating plate 1 and reduce the contact area, thereby reducing the heat loss of the heating plate 1.

[0050] See Figures 4-6 The microcrystalline glass plate 7 has a through hole in the middle. The screw 5 passes through the mica plate 2 and the through hole and connects to the threaded hole. The through hole prevents the screw 5 from contacting the microcrystalline glass plate 7, reducing heat loss.

[0051] The mica plate 2 is disposed on the stepped portion of the bottom shell 6. The top surface of the mica plate 2 is on the same plane as the top surface of the bottom shell 6, and the bottom of the microcrystalline glass plate 7 is also in contact with the top surface of the bottom shell 6.

[0052] Example 3

[0053] This embodiment discloses an electric heating device, including a heating plate structure as described in Embodiment 1 or Embodiment 2.

[0054] 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 structure, characterized in that, It includes a heating plate for generating heat and a panel assembly disposed at the lower end of the heating plate, wherein the bottom outer edge of the heating plate is attached to the upper surface of the panel assembly to form a waterproof support structure.

2. The heating plate structure according to claim 1, characterized in that, The outer edge of the heating plate has a downwardly extending portion, the bottom of which is in contact with the panel assembly and is in surface contact.

3. The heating plate structure according to claim 2, characterized in that, The panel assembly includes a mica plate and a stainless steel plate, with the bottom of the extension abutting against the upper surface of the mica plate; the stainless steel plate covers the mica plate and is located outside the waterproof support structure, with a gap between the stainless steel plate and the extension.

4. The heating plate structure according to claim 3, characterized in that, The stainless steel plate has a clearance hole in the middle. The extension of the heating plate passes through the clearance hole and fits against the upper surface of the mica plate. The space between the outer side of the extension and the inner wall of the clearance hole forms the gap.

5. A heating plate structure according to claim 4, characterized in that, It also includes a bottom shell located at the lower end of the panel assembly.

6. The heating plate structure according to claim 5, characterized in that, A first heat insulation pad is provided between the stainless steel plate and the mica plate, and a second heat insulation pad is provided between the mica plate and the bottom shell.

7. A heating plate structure according to claim 2, characterized in that, The panel assembly includes a microcrystalline glass plate and a mica plate, the microcrystalline glass plate being disposed between the heating plate and the mica plate, and the bottom of the extension being attached to the upper surface of the microcrystalline glass plate.

8. A heating plate structure according to any one of claims 4-7, characterized in that, The bottom of the heating plate is provided with an upwardly recessed groove; the groove is an annular groove, and the extension is located on the outside of the annular groove.

9. A heating plate structure according to claim 8, characterized in that, The heating plate is fixedly connected to the panel assembly by screws; the top of the groove is provided with a downward protrusion, and the protrusion is provided with a threaded hole, and the screw passes through the mica plate and connects to the threaded hole.

10. An electric heating device, characterized in that, Includes the heating plate structure as described in any one of claims 1-9.

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