Electric heating plate

Abstract

The invention relates to the field of electric heating, in particular to the field of household appliances. An electric heating plate comprises an electric heating film layer and at least one metal plate as a soaking layer, the metal plate of the soaking layer can play a role in transversely conducting heat, and the heat is automatically transferred to a place where heat dissipation is fast, so that heating power can be uniformly distributed on the electric heating plate, and a high-power area and a low-power area do not need to be distinguished. The electric heating film layer comprises an electric heating wire layer and insulating layers covering the two faces of the electric heating wire layer, and the insulating layers can provide a necessary safety barrier. The surface of the soaking layer can also be covered with a protective film made of tempered glass, plastic, silica gel and other materials, so that the product is more attractive and more comfortable to use. Furthermore, the electric heating plate is manufactured by the processes of etching, laminating and the like of the multi-layer printed circuit board, and mature processes and materials can be utilized, so that the production cost is lower, and the product quality is higher. And flexible materials such as a silica gel glass fiber plate are used as the insulating layer, so that the flexible electric heating plate can be manufactured, and the use is more convenient.

Description

Technical Field

[0001] The present invention relates to the field of electric heating, in particular to the field of household appliances. Background Art

[0002] At present, electric heating plates are generally made of electric heating films pasted or printed on insulating plates such as glass, and are used as products such as warming plates. High-power areas are marked on the plates for placing dishes. The disadvantage is that they cannot flexibly adapt to various combinations of dishes and are not very convenient to use.

[0003] Printed circuit boards (PCBs) are structures used to connect and support electronic components. The circuits of PCBs are mainly made on copper plates using an etching process, and the heating wires of electric heating films are generally made using an etching process. The PCB lamination process refers to the process of pressing multiple layers of copper plates and insulating materials into a whole through processes such as heat pressing and chemical reactions. In order to perform lamination, the inner layers of the PCB are subjected to extreme temperatures (375 o F) and pressures (275 to 400 psi). Summary of the invention

[0004] In order to alleviate the deficiencies of the prior art, the present invention provides an electric heating plate.

[0005] The technical solution adopted by the present invention to solve its technical problem is: An electric heating plate includes an electric heating film layer and at least one metal plate as a heat-spreading layer. The electric heating film layer includes an electric heating wire layer and an insulating layer covering both sides of the electric heating wire layer. The heat-spreading layer is close to the heated object, such as a dish, and the surface of the heat-spreading layer can also be covered with a protective film of tempered glass, plastic, silicone and other materials. Furthermore, the electric heating plate is made using processes such as etching and lamination of multi-layer printed circuit boards. A flexible electric heating plate can be made by using flexible materials such as silicone fiberglass boards as insulating layers.

[0006] The beneficial effects of the present invention are: A heating plate includes an electric heating film layer and at least one metal plate as a heat-spreading layer. The metal plate of the heat-spreading layer can conduct heat laterally, and the heat is automatically transferred to the place where the heat dissipation is faster, so that the heating power can be evenly distributed on the heating plate without distinguishing between high-power areas and low-power areas. The electric heating film layer includes a heating wire layer and an insulating layer covering both sides of the heating wire layer. The insulating layer can provide a necessary safety barrier. The surface of the heat-spreading layer can also be covered with a protective film of tempered glass, plastic, silicone and other materials, which can make the product more beautiful and more comfortable to use. Furthermore, the heating plate is made using processes such as etching and lamination of multi-layer printed circuit boards, and can utilize mature processes and materials to reduce production costs and improve product quality. Using flexible materials such as silicone fiberglass boards as insulating layers can produce flexible heating plates that are more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 Schematic diagram of the structure of the electric heating plate according to the present invention.

[0008] In the figure, 1. Electric heating film layer, 11. Electric heating wire layer, 12. Insulation layer, 2. Heat distribution layer, 3. Protective film. Implementation

[0009] The present invention is further described below in conjunction with the accompanying drawings and embodiments. Example

[0010] exist Figure 1 In one embodiment of the present invention, a hot plate is provided.

[0011] like Figure 1 As shown: an electric heating plate, comprising an electric heating film layer 1 and a metal plate as a heat-spreading layer 2. The electric heating film layer 1 comprises an electric heating wire layer 11, and an insulating layer 12 covering both sides of the electric heating wire layer 11. The surface of the heat-spreading layer 2 is also covered with a protective film 3 of tempered glass. The main processing process is to etch the electric heating wire layer 11 on the copper plate of the first single-sided copper-clad glass fiber board, and then laminate the second single-sided copper-clad glass fiber board, and form the heat-spreading layer 2 by the upper and lower glass fiber board-shaped insulating layers 12 and the copper plate of the second single-sided copper-clad glass fiber board.

Claims

1. An electric heating plate, characterized in that: The invention comprises an electric heating film layer and at least one metal plate as a heat-spreading layer, wherein the electric heating film layer comprises an electric heating wire layer and an insulating layer covering both sides of the electric heating wire layer.

2. The electric heating plate according to claim 1, characterized in that: The surface of the heat-dissipating layer is covered with a protective film.

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