A quick heat dissipation heating disc

By designing a three-dimensional heat dissipation channel with annular heat dissipation grooves, heat dissipation holes, and gaps in the heating plate, combined with an aluminum alloy heat-conducting plate, the problem of slow heat dissipation of the heating plate is solved, achieving rapid cooling and extended lifespan.

CN224319529UActive Publication Date: 2026-06-02ZHEJIANG JX IND & TRADE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG JX IND & TRADE CO LTD
Filing Date
2025-05-12
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing heating plates have difficulty dissipating heat quickly after heating stops, causing the surface temperature to remain at a high level for a long time, which poses a risk of burns and affects the service life.

Method used

It adopts a metal thermally conductive substrate design, with an annular heat dissipation groove and heat dissipation holes on the top, and a gap is left between the substrate and the base to form a three-dimensional heat dissipation channel. Combined with aluminum alloy thermally conductive plate material, it can improve heat dissipation efficiency.

Benefits of technology

This technology enables the heating plate to cool down rapidly after a power outage, reducing the risk of burns, extending its service life, and improving structural stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention belongs to the field of heating plate technology and discloses a rapid heat dissipation heating plate, including a metal heat-conducting substrate, an electric heating tube, and a base. The electric heating tube is fixedly installed on the bottom of the metal heat-conducting substrate, which is detachably installed on the base. The electric heating tube is located between the metal heat-conducting substrate and the base. The top of the metal heat-conducting substrate has several concentric annular heat dissipation grooves of different diameters, and several heat dissipation holes are also formed on the metal heat-conducting substrate. This invention, through the annular heat dissipation grooves and holes on the top of the metal heat-conducting substrate, combined with the gap between the base and the metal heat-conducting substrate, forms a three-dimensional heat dissipation channel. Air can flow rapidly within the grooves, holes, and gaps, accelerating heat dissipation. Compared to traditional smooth flat heating plates, this allows the surface temperature of the heating plate to drop to a safe range more quickly after power is cut off, avoiding the risk of burns. It also reduces substrate oxidation and deformation caused by high temperatures, extending the service life.
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Description

Technical Field

[0001] This utility model relates to the field of heating plate technology, and in particular to a rapid heat dissipation heating plate. Background Technology

[0002] In modern kitchen appliances, the heating plate is a core heating component in cookware such as electric hot pots, electric frying pans, and induction cookers, and its performance directly affects cooking efficiency, energy consumption, and safety. Current heating plates typically employ a structure combining a metal substrate with resistance heating elements, converting electrical energy into heat to heat the cookware. However, as users' demands for safety, durability, and energy efficiency in cookware increase, the design flaws of traditional heating plates are becoming increasingly apparent.

[0003] Because the top surface of a metal substrate is usually a smooth plane, the heat stored inside the heating plate is difficult to dissipate quickly after heating stops, causing the surface temperature to remain at a high level for a long time, which can easily cause safety hazards such as burns, and also affect the service life of the heating plate.

[0004] Therefore, a rapid heat dissipation heating plate is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a fast heat dissipation heating plate, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] A rapid heat dissipation heating plate includes a metal thermally conductive substrate, an electric heating tube, and a base. The electric heating tube is fixedly installed on the bottom of the metal thermally conductive substrate, and the metal thermally conductive substrate is detachably installed on the base. The electric heating tube is located between the metal thermally conductive substrate and the base. The top of the metal thermally conductive substrate has several concentric annular heat dissipation grooves of different diameters, and the metal thermally conductive substrate has several heat dissipation holes.

[0008] In a rapid heat dissipation heating plate according to the present invention, the depth of the annular heat dissipation groove is 2mm-5mm, and the distance between two adjacent annular heat dissipation grooves is 8mm-15mm.

[0009] In a rapid heat dissipation heating plate according to the present invention, the inner diameter of the heat dissipation hole is 4mm-8mm.

[0010] In a rapid heat dissipation heating plate according to the present invention, a gap of 4mm-8mm is left between the base and the metal heat-conducting substrate.

[0011] In a rapid heat dissipation heating plate according to the present invention, the bottom of the metal heat-conducting substrate is integrally formed with a plurality of connecting seats, and the base is provided with mounting holes corresponding to the connecting seats one by one.

[0012] In a rapid heat dissipation heating plate according to the present invention, a stud is fixedly welded to the bottom of the base.

[0013] In a rapid heat dissipation heating plate according to the present invention, the base is provided with a socket for the conductive pins of the electric heating tube to pass through.

[0014] In a rapid heat dissipation heating plate according to the present invention, the metal heat-conducting substrate is an aluminum alloy heat-conducting plate.

[0015] This utility model has at least the following beneficial effects:

[0016] The annular heat dissipation grooves and holes on the top of the metal thermally conductive substrate, together with the gap between the base and the metal thermally conductive substrate, form a three-dimensional heat dissipation channel. Air can flow rapidly within the grooves, holes, and gaps, accelerating heat dissipation. Compared to traditional smooth flat heating plates, this allows the surface temperature of the heating plate to drop to a safe range more quickly after power is cut off, avoiding the risk of burns. It also reduces substrate oxidation and deformation caused by high temperatures, extending its service life. Attached Figure Description

[0017] 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:

[0018] Figure 1 This is an exploded structural diagram of the rapid heat dissipation heating plate of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the rapid heat dissipation heating plate of this utility model;

[0020] Figure 3 This is a structural schematic diagram of the rapid heat dissipation heating plate of this utility model from another perspective;

[0021] Figure 4 This is a schematic diagram of the structure of the metal thermally conductive substrate of this utility model;

[0022] Figure 5 This is a front view structural diagram of the rapid heat dissipation heating plate of this utility model.

[0023] Explanation of icon numbers:

[0024] 1. Metal thermally conductive substrate; 101. Annular heat dissipation groove; 102. Heat dissipation hole; 103. Connector; 2. Electric heating tube; 201. Conductive pin; 3. Base; 301. Stud; 302. Mounting hole; 303. Insertion hole. Detailed Implementation

[0025] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0026] Please refer to Figures 1 to 5 As shown, an embodiment of this utility model provides a rapid heat dissipation heating plate, including a metal heat-conducting substrate 1, an electric heating tube 2, and a base 3. The electric heating tube 2 is fixedly installed on the bottom of the metal heat-conducting substrate 1, and the metal heat-conducting substrate 1 is detachably installed on the base 3. The electric heating tube 2 is located between the metal heat-conducting substrate 1 and the base 3. The top of the metal heat-conducting substrate 1 is provided with a plurality of concentric annular heat dissipation grooves 101 of different diameters, and a plurality of heat dissipation holes 102 are provided on the metal heat-conducting substrate 1.

[0027] In use, the annular heat dissipation groove 101 and heat dissipation hole 102 on the top of the metal heat-conducting substrate 1 increase the contact area with air, allowing air to flow within the annular heat dissipation groove 101 and heat dissipation hole 102, accelerating heat dissipation. This enables rapid heat dissipation after the heating plate stops operating. Simultaneously, the metal heat-conducting substrate 1 can be detachably mounted on the base 3 for easy installation and maintenance. The base 3 provides support and fixation, ensuring the electric heating tube 2 is securely positioned between the metal heat-conducting substrate 1 and the base 3.

[0028] In this embodiment, the depth of the annular heat dissipation groove 101 is 2mm-5mm, and the distance between two adjacent annular heat dissipation grooves 101 is 8mm-15mm.

[0029] The annular heat dissipation groove 101 has a depth of 2mm-5mm, which ensures sufficient space for airflow without excessively weakening the structural strength of the metal heat-conducting substrate 1, thus ensuring a balance between heat conduction and dissipation. Adjacent annular heat dissipation grooves 101 maintain a spacing of 8mm-15mm, allowing for smooth airflow between the grooves and preventing airflow obstruction due to insufficient spacing, thereby improving heat dissipation efficiency. When the heating plate is operating, air flows through the annular heat dissipation grooves 101 and their gaps, carrying away heat from the surface of the metal heat-conducting substrate 1. After heating stops, it also quickly reduces the temperature of the metal heat-conducting substrate 1.

[0030] In this embodiment, the inner diameter of the heat dissipation hole 102 is 4mm-8mm.

[0031] The inner diameter of the heat dissipation hole 102 is set between 4mm and 8mm. This size range ensures that air can pass smoothly through the heat dissipation hole 102 and exchange heat with the interior and surface of the metal thermally conductive substrate 1. When the heating plate stops working, the heat on the metal thermally conductive substrate 1 is conducted to the vicinity of the heat dissipation hole 102 through the metal thermally conductive substrate 1. As air flows through the heat dissipation hole 102, it carries away the heat, accelerating heat dissipation. If the hole diameter is too small, the airflow will be insufficient, and the heat dissipation effect will be poor; if the hole diameter is too large, it will affect the structural strength and heating uniformity of the metal thermally conductive substrate 1. The inner diameter of 4mm-8mm can achieve a good balance between heat dissipation and structural performance.

[0032] In this embodiment, a gap of 4mm-8mm is left between the base 3 and the metal thermally conductive substrate 1.

[0033] The 4mm-8mm gap between the base 3 and the metal heat-conducting substrate 1 provides a passage for airflow, thus aiding in the heat dissipation of the metal heat-conducting substrate 1. Simultaneously, this gap prevents heat accumulation caused by direct contact between the metal heat-conducting substrate 1 and the base 3, further enhancing the heat dissipation effect.

[0034] In this embodiment, the bottom of the metal thermally conductive substrate 1 is integrally formed with a plurality of connecting seats 103, and the base 3 is provided with mounting holes 302 corresponding to the connecting seats 103 one by one.

[0035] The integrally formed connecting base 103 at the bottom of the metal heat-conducting substrate 1 mates with the mounting hole 302 on the base 3, enabling a detachable connection between the metal heat-conducting substrate 1 and the base 3. During installation, the connecting base 103 is inserted into the mounting hole 302 and secured with screws, ensuring the metal heat-conducting substrate 1 is firmly mounted on the base 3 and that the electric heating element 2 is in the correct position for heating. When maintenance or component replacement is required, disassembly is easy and quick. Simultaneously, this connection method ensures the relative positional stability between the metal heat-conducting substrate 1 and the base 3, without affecting the overall performance and heat dissipation effect of the heating element.

[0036] In this embodiment, a stud 301 is fixedly welded to the bottom of the base 3.

[0037] The stud 301 welded to the bottom of the base 3 is used to install the heating plate onto the kitchen appliance as a whole. At the same time, the presence of the stud 301 facilitates the disassembly and installation of the heating plate. When the kitchen appliance needs maintenance or replacement of the heating plate, the heating plate can be quickly disassembled by unscrewing the nuts and other connecting parts that cooperate with the stud 301.

[0038] In this embodiment, the base 3 is provided with a socket 303 for the conductive pins 201 of the electric heating tube 2 to pass through.

[0039] The conductive pins 201 of the electric heating element 2 pass through the sockets 303 on the base 3 to connect to an external power source. During installation, the conductive pins 201 are passed through the sockets 303 and connected to the power cord and other connecting components, preventing the conductive pins 201 from interfering with other components inside the base 3 and ensuring the overall electrical safety and stability of the heating plate.

[0040] In this embodiment, the metal thermally conductive substrate 1 is an aluminum alloy thermally conductive plate.

[0041] The aluminum alloy heat-conducting plate, serving as the metal heat-conducting substrate 1, utilizes its high thermal conductivity to quickly transfer the heat generated by the electric heating element 2 to the top, enabling efficient heating of kitchen utensils. Simultaneously, the aluminum alloy material possesses excellent oxidation and corrosion resistance, effectively preventing oxidation and corrosion of the metal heat-conducting substrate 1 surface during frequent heating and cooling processes, thus extending the lifespan of the heating plate. Furthermore, the low density and light weight of aluminum alloy facilitate the installation and handling of the heating plate, and, while maintaining structural strength, help reduce the overall weight and cost of the heating plate.

[0042] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A rapid heat dissipation heating plate, characterized in that, The device includes a metal heat-conducting substrate (1), an electric heating tube (2), and a base (3). The electric heating tube (2) is fixedly installed on the bottom of the metal heat-conducting substrate (1). The metal heat-conducting substrate (1) is detachably installed on the base (3). The electric heating tube (2) is located between the metal heat-conducting substrate (1) and the base (3). The top of the metal heat-conducting substrate (1) is provided with several concentric annular heat dissipation grooves (101) of different diameters. The metal heat-conducting substrate (1) is provided with several heat dissipation holes (102).

2. The rapid heat dissipation heating plate according to claim 1, characterized in that: The depth of the annular heat dissipation groove (101) is 2mm-5mm, and the distance between two adjacent annular heat dissipation grooves (101) is 8mm-15mm.

3. The rapid heat dissipation heating plate according to claim 2, characterized in that: The inner diameter of the heat dissipation hole (102) is 4mm-8mm.

4. The rapid heat dissipation heating plate according to claim 3, characterized in that: A gap of 4mm-8mm is left between the base (3) and the metal thermally conductive substrate (1).

5. A rapid heat dissipation heating plate according to claim 1, characterized in that: The bottom of the metal thermally conductive substrate (1) is integrally formed with several connecting seats (103), and the base (3) is provided with mounting holes (302) that correspond one-to-one with the connecting seats (103).

6. A rapid heat dissipation heating plate according to claim 1, characterized in that: The bottom of the base (3) is fixedly welded with a stud (301).

7. A rapid heat dissipation heating plate according to claim 1, characterized in that: The base (3) has a socket (303) through which the conductive pin (201) of the electric heating tube (2) passes.

8. A rapid heat dissipation heating plate according to any one of claims 1-7, characterized in that: The metal thermally conductive substrate (1) is an aluminum alloy thermally conductive plate.