Integrated electric heating disc

Abstract

This utility model discloses an integrated electric heating plate, including a heating plate body and an electric heating tube. The electric heating tube is completely enclosed within the heating plate body by casting or die casting. The heating plate body has mounting bosses for electrical components. The mounting bosses are perforated around their perimeter to form a heat insulation zone, ensuring that the temperature at the mounting bosses within the heat insulation zone is lower than the temperature of the heating plate body outside the heat insulation zone. This integrated electric heating plate, by perforating the mounting bosses around their perimeter to form a heat insulation zone, reduces the temperature at the mounting location of the electrical components. This not only significantly improves heating efficiency but also effectively reduces the aging time of the electrical components mounted on the heating plate body, extending their service life.

Description

Technical Field

[0001] This utility model relates to an electric heating plate, and more particularly to an integrated electric heating plate. Background Technology

[0002] Electric heating plates are a common type of electric heating device, often used in electric kettles or electric stoves. Furthermore, to control the temperature of the electric heating plate, it needs to be connected to a thermostat.

[0003] To improve the heating efficiency of electric heating devices, the heating plate and heating element are often integrated into one unit. Due to the high power of the electric heating plate, the temperature of the heating plate is often as high as 200-300℃. This can cause electrical components installed on the heating plate, such as the thermostat, to age or activate prematurely, thus failing to meet the functional requirements of the product and, in severe cases, causing the thermostat to fail.

[0004] Simultaneously, once the aging issue of electrical components on the heating plate is resolved, further improvements to the heating efficiency of the electric heating plate can be considered. For example, split-type electric heaters typically combine the heating element and aluminum base into one unit through riveting, threading, or welding. In these structures, the contact surface between the heating element and the aluminum base accounts for less than half of the heating element's surface area, leaving more than half of the heating element in contact with air, which obviously affects heating efficiency. Furthermore, due to structural limitations, the heating element is usually only U-shaped, resulting in uneven heat distribution, making it difficult to meet market demands for high-power heating plates, and easily leading to scale buildup. Therefore, existing electric heating plates require continuous improvement. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an integrated electric heating plate that can not only greatly improve heating efficiency, but also effectively prevent the aging of electrical components installed on the heating plate and extend its service life.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is to provide an integrated electric heating plate, including a heating plate body and an electric heating tube, wherein: the electric heating tube is completely enclosed in the heating plate body by casting or die casting, and the heating plate body is provided with an electrical component mounting boss; the electrical component mounting boss is hollowed out around to form a heat insulation zone, so that the temperature at the electrical component mounting boss located in the heat insulation zone is lower than the temperature of the heating plate body outside the heat insulation zone.

[0007] Furthermore, the electrical component mounting boss includes two first mounting bosses for mounting a bimetallic thermostat, and the first mounting bosses are hollowed out around their perimeter to form a first heat insulation zone.

[0008] Furthermore, the mounting boss of the electrical component includes a positioning post, and the positioning post is hollowed out around its perimeter to form a second heat insulation zone.

[0009] Furthermore, the spacing between the heating wires of the electric heating tube near the positioning post is greater than the spacing between the wires elsewhere.

[0010] Furthermore, the heating plate and the heating element are integrally formed by die casting, so that the heating surface of the heating element is in 100% contact with the heating plate.

[0011] Furthermore, the power of the electric heating element is between 500-5000W, and the temperature at the mounting boss of the electrical component is 20-50°C lower than the temperature of the heating plate outside the insulation zone.

[0012] Furthermore, the heating element is not U-shaped, and its cross-section is circular, semi-circular, trapezoidal, rectangular, or elliptical.

[0013] Furthermore, the heating plate body is an aluminum base, and the connector of the electric heating tube is placed at the bottom of the aluminum base or around the periphery of the aluminum base.

[0014] Furthermore, the connector of the heating element is either elbow-shaped or straight.

[0015] Compared with the prior art, the present invention has the following advantages: The integrated electric heating plate provided by the present invention has hollowed out the area around the mounting boss of the electrical components to form a heat insulation zone, thereby reducing the temperature at the mounting location of the electrical components. This not only greatly improves the heating efficiency, but also effectively prevents the electrical components mounted on the heating plate from aging and extends their service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the integrated electric heating plate structure of this utility model; Figure 2 For along Figure 1 A schematic diagram of the cross-sectional structure of line AA in the middle.

[0017] The diagram is marked as follows: 1 Heating plate body 2 Heating element 3 First mounting boss 4. Positioning post; 5. First insulation zone; 6. Second insulation zone 7 Connector 8 Heating Wire Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the integrated electric heating plate structure of this utility model; Figure 2 For along Figure 1A schematic diagram of the cross-sectional structure of line AA in the middle.

[0020] Please see Figure 1 and Figure 2 The integrated electric heating plate provided by this utility model includes a heating plate body 1 and an electric heating tube 2, wherein: the electric heating tube 2 is completely enclosed in the heating plate body 1 by casting or die casting, and the heating plate body 1 is provided with an electrical component mounting boss; the electrical component mounting boss is hollowed out around to form a heat insulation zone, so that the temperature at the electrical component mounting boss located in the heat insulation zone is lower than the temperature of the heating plate body 1 outside the heat insulation zone.

[0021] The integrated electric heating plate provided by this utility model includes: two first mounting bosses 3 for mounting bimetallic thermostats, with the first mounting bosses having a hollowed-out perimeter forming a first heat insulation zone 5; the electrical component mounting boss also includes positioning posts 4, with the positioning posts 4 having a hollowed-out perimeter forming a second heat insulation zone 6. There are three positioning posts 4 arranged in a triangular shape. Because the positioning posts 4 are close to the heating element 2, the size of the second heat insulation zone 6 is limited, especially since the positioning posts 4 located at the upper connector 7 are very close to the heating element 2; therefore, the winding spacing of the heating wire of the heating element 2 near the positioning posts 4 is greater than the winding spacing elsewhere (the heating wire should be sparser). Figure 1 (A partial cross-sectional view of the heating element is given in the image). This means that the power density of this section of the heating element at positioning post 4 is reduced through a wire-drawing process, thereby lowering the temperature of positioning post 4. The two positioning posts 4 located below are close to the mounting boss and have relatively large space. If the second heat insulation zone 6 at this location can meet the cooling requirements, the wire-drawing process for reducing the power density of the heating element at this location may not be necessary.

[0022] This utility model provides an integrated electric heating plate, wherein the heating plate body 1 and the heating element 1 are integrally formed by die casting, so that the heating surface of the heating element 2 is in 100% contact with the heating plate body 1, thereby improving heating efficiency. Preferably, the power of the heating element 2 is between 500-5000W, and the temperature at the mounting boss of the electrical component is 20-50℃ lower than the temperature of the heating plate body 1 outside the heat insulation zone; thus ensuring that the temperature controller will not activate prematurely, affecting the normal use of the high-power heating plate.

[0023] As a preferred embodiment, the integrated electric heating plate provided by this utility model has the following features: the electric heating tube 2 is not U-shaped, and the cross-section of the electric heating tube 2 is circular, semi-circular, trapezoidal, rectangular, or elliptical, which further improves the heating efficiency.

[0024] As a preferred embodiment, the integrated electric heating plate provided by this utility model includes: the heating plate body 1 is an aluminum base, and the connector 7 of the electric heating tube 2 is placed at the bottom of the aluminum base or around the aluminum base; the connector 7 of the electric heating tube 2 is bent or straight.

[0025] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. An integrated electric heating plate, comprising a heating plate body (1) and an electric heating tube (2), characterized in that: The electric heating tube (2) is completely enclosed in the heating plate body (1) by casting or die casting. The heating plate body (1) is provided with an electrical component mounting boss. The electrical component mounting boss is hollowed out around to form a heat insulation zone, so that the temperature of the electrical component mounting boss located in the heat insulation zone is lower than the temperature of the heating plate body (1) outside the heat insulation zone.

2. The integrated electrically heated calorifier of claim 1, wherein: The electrical component mounting boss includes two first mounting bosses (3) for mounting a bimetallic thermostat, and the first mounting bosses (3) are hollowed out around their perimeter to form a first heat insulation area (5).

3. The integrated electrically heated heat spreader of claim 1, wherein: The electrical component mounting boss includes a positioning post (4), and the positioning post (4) is hollowed out around its perimeter to form a second heat insulation zone (6).

4. The integrated electric heating plate according to claim 1, characterized in that: The heating wire (8) of the electric heating tube (2) has a greater winding spacing near the positioning post (4) than that far from the positioning post (4).

5. The integrated electrically heated heat spreader of claim 1, wherein: The heating plate (1) and the heating tube (2) are integrally formed by die casting, so that the heating surface of the heating tube (2) is in 100% contact with the heating plate (1).

6. The integrated electrically heated heat spreader of claim 1, wherein: The electric heating tube (2) has a power between 500-5000W, and the temperature at the mounting boss of the electrical component is 20-50°C lower than the temperature of the heating plate (1) outside the heat insulation zone.

7. The integrated electric heating plate according to claim 1, characterized in that: The electric heating tube (2) is not U-shaped, and the cross-section of the electric heating tube (2) is circular, semi-circular, trapezoidal, rectangular or elliptical.

8. The integrated electric heating plate according to claim 1, characterized in that: The heating plate body (1) is an aluminum base, and the connector of the electric heating tube (2) is placed at the bottom of the aluminum base or around the aluminum base.

9. The integrated electrically heated heat spreader of claim 1, wherein: The connector of the electric heating tube (2) is either bent or straight.

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