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Flexible heating sheet and manufacturing method thereof

A heating element, flexible technology, applied in the field of flexible heating element and its preparation, can solve the problem of heating parts that cannot have a curved surface, and achieve the effect of improving stability

Inactive Publication Date: 2015-06-24
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a flexible heating sheet for the problem that the components with curved surfaces cannot be heated in the prior art

Method used

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  • Flexible heating sheet and manufacturing method thereof
  • Flexible heating sheet and manufacturing method thereof

Examples

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preparation example Construction

[0037] The present invention also provides a method for preparing the above-mentioned flexible heating sheet, including:

[0038] S1. Set the positive electrode pattern and the negative electrode pattern on the insulating insulation layer;

[0039] S2. Fill the electrothermal ink between the positive electrode pattern and the negative electrode pattern on the insulation layer, so that the electrothermal ink is in electrical contact with the positive electrode pattern and the negative electrode pattern at the same time, forming a heating function layer;

[0040] S3. An insulating heat radiation layer is provided on the heat generating functional layer.

[0041] In the above step S1, as mentioned above, the positive electrode pattern and the negative electrode pattern can be independently selected from one of aluminum, copper, and silver. The above-mentioned positive electrode pattern and negative electrode pattern can be prepared by various conventional methods, such as punchi...

Embodiment 1

[0050] This embodiment is used to illustrate the flexible heat sink disclosed in the present invention and its preparation method.

[0051] Take 0.1mm thick PET film as insulation layer.

[0052] A metal aluminum layer with a thickness of 0.007mm is pasted on the upper surface of the insulation layer as the positive electrode pattern and the negative electrode pattern. Then, electrothermal ink with a thickness of 0.02 mm is printed between the positive electrode pattern and the negative electrode pattern, so that the electrothermal ink fills the gap between the positive electrode pattern and the negative electrode pattern, and is electrically connected to the positive electrode pattern and the negative electrode pattern at the same time. A heat generating functional layer is formed.

[0053] The structure of the heating function layer on the surface of the insulation layer is as follows: figure 1 and figure 2 shown. Wherein, the positive electrode pattern, the negative el...

Embodiment 2

[0063] This embodiment is used to illustrate the flexible heat sink disclosed in the present invention and its preparation method.

[0064] Take 0.05mm thick PET film as insulation layer.

[0065] A metal silver layer with a thickness of 0.1 mm is pasted on the upper surface of the insulation layer as the positive electrode pattern and the negative electrode pattern. Then, electrothermal ink with a thickness of 0.05mm is printed between the positive electrode pattern and the negative electrode pattern, so that the electrothermal ink fills the gap between the positive electrode pattern and the negative electrode pattern, and is electrically connected to the positive electrode pattern and the negative electrode pattern at the same time. A heat generating functional layer is formed. The structure of the heat generating functional layer is the same as in Example 1.

[0066] The width of the above-mentioned sub-positive electrode strips is 8mm, the width of the sub-negative elect...

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Abstract

The invention provides a flexible heating sheet in order to overcome the defect that the curved surface of a component cannot be heated in the prior art. The flexible heating sheet comprises a heat preservation layer, a heating function layer and a heat radiation layer which are stacked in sequence; the heating function layer comprises an anode line, a cathode line and electric heat ink; the anode line is separated from the cathode line; the space between the anode line and the cathode line is filled with the electric heat ink, and the anode line is electrically connected with the cathode line; the anode line comprises a main anode strip and multiple auxiliary anode strips arranged in parallel, and the auxiliary anode strips are electrically connected to the main anode strip; the cathode line comprises a main cathode strip and auxiliary cathode strips arranged in parallel with the auxiliary anode strips, and the auxiliary cathode strips are electrically connected to the main cathode strip; the auxiliary anode strips and the auxiliary cathode strips are arranged in a staggered mode; the heat preservation layer and the heat radiation layer are made of insulation materials. The invention further discloses a manufacturing method of the flexible heating sheet. The flexible heating sheet can be used for a curved surface, and even if a partial region is damaged, the flexible heating sheet can be normally used; meanwhile, the flexible heating sheet emits heat uniformly.

Description

technical field [0001] The invention belongs to the field of electric heating, in particular to a flexible heating sheet and a preparation method thereof. Background technique [0002] With the continuous development of processing and manufacturing technology, products with various shapes and irregular inner walls are constantly being produced. When these products need to be heated or kept at a certain temperature, it is necessary to solve the problem of heating them. While heating them, it is necessary to minimize the impact on the shape of the product. In terms of heating methods, there are mainly the following two types: [0003] 1. Direct heating: resistance wire heating, in places where the setting space is small, only very thin resistance wires can be used. However, thin resistance wires are very easy to age and burn out under alternating power on and off, cold and heat shocks , causing the heating system to fail. [0004] 2. Indirect heating: blowing hot air, etc.,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/34H05B3/14
Inventor 林信平张伟锋徐强邵长健
Owner BYD CO LTD
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