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A kind of flexible electric heating plate and preparation method thereof

An electric heating plate, flexible technology, applied in the direction of electric heating devices, ohmic resistance heating, ohmic resistance heating parts, etc., can solve the problems of high cost of carbon nanotubes, unsuitability for industrialized large-scale production, weak tensile strength, etc., and achieve folding resistance Superior performance, good electrification performance, light and thin finished product

Active Publication Date: 2020-07-03
厦门宝益科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although these two patents avoid the use of metal heating elements, carbon nanotubes are currently expensive as heating elements and are not suitable for industrialized mass production, which is not conducive to popularization and application.
In summary, the flexible heating devices such as electric blankets in the prior art all have technical problems such as weak tensile strength of heating elements such as resistance wires, poor bending resistance, easy breakage, and short service life.

Method used

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  • A kind of flexible electric heating plate and preparation method thereof
  • A kind of flexible electric heating plate and preparation method thereof
  • A kind of flexible electric heating plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041]A flexible electric heating plate, using polyimide as the flexible substrate layer, using epoxy resin glue as the first bonding layer, and evenly coating the epoxy resin glue on the polyimide material, the thickness of the glue layer is less than 8 μm ; Take a nickel-iron alloy film with a thickness of 50 μm as large as the polyimide material as the circuit layer. Before the glue is cured, spread the nickel-iron alloy film on the glue, compact it and let it stand until the glue is cured to obtain the intermediate product a. The nickel-chromium alloy film of the intermediate product a is processed through exposure, development, and etching processes, so that the circuit layer is bidirectionally S-patterned in warp and weft, and the intermediate product b is obtained. Take equal-sized polyimide as the coating layer, and coat nitrile rubber with a thickness of less than 8 μm on the polyester resin as the second adhesive layer. Before the nitrile rubber is cured, stick it to ...

Embodiment 2

[0043] A flexible electric heating plate, using polyester resin as a flexible substrate layer, using silicone rubber as a first bonding layer, and evenly coating silicone rubber on the polyester resin material, the thickness of the adhesive layer is less than 8 μm; The iron-chromium-aluminum alloy film with a thickness of 150 μm is used as the circuit layer. Before the glue is cured, the iron-chromium-aluminum alloy film is flatly spread on the glue, compacted and left to stand until the glue is cured to obtain the intermediate product a. The iron-chromium-aluminum alloy film of the intermediate product a is processed through exposure, development, and etching processes, so that the line layer is bidirectionally S-patterned in warp and weft, and the intermediate product b is obtained. Take an equal-sized polypropylene material as the coating layer, and coat the polypropylene material with silicone rubber with a thickness of less than 8 μm as the second adhesive layer. Before th...

Embodiment 3

[0045] A flexible electric heating plate, using polybutylene succinate as a flexible base material layer, using nitrile rubber as the first bonding layer, uniformly coating the nitrile rubber on the polybutylene succinate material, glue The thickness of the layer is less than 8 μm; take the iron-chromium-aluminum alloy film with a thickness of 5 μm as large as the polybutylene succinate material as the circuit layer, and spread the iron-chromium-aluminum alloy film on the glue before the glue is cured, and compact it And let it stand until the glue solidifies to obtain the intermediate product a. The iron-chromium-aluminum alloy film of the intermediate product a is processed through exposure, development, and etching processes, so that the line layer is bidirectionally S-patterned in warp and weft, and the intermediate product b is obtained. Take equal-sized polyethylene as the coating layer, and coat the polyethylene material with epoxy resin glue with a thickness of less th...

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Abstract

The invention provides a flexible electric heating plate. The flexible electric heating plate comprises a flexible base material layer, a first adhesive layer, a circuit layer, a second adhesive layerand a film covering layer, wherein the flexible base material layer and the film covering layer are insulating materials; the first adhesive layer and the second adhesive layer are curing adhesive; the circuit layer is high-resistivity pure metal or an alloy material; and the circuit layer prepares a longitude and latitude bidirectional circuit by the methods of exposure, developing and etching in a circuit board preparation process in the electric field, and the circuit is 5-150[mu]m in thickness. The flexible electric heating plate disclosed in the invention is excellent in folding resistance, and the safety and service life are greatly improved and prolonged.

Description

technical field [0001] The invention relates to an electric heating device, in particular to a flexible electric heating plate and a preparation method thereof. Background technique [0002] In daily life, flexible heating devices are used in many places, such as electric heating pads, electric blankets, electric heating quilts, electric heating health care belts and so on. Traditional flexible heating devices generally use resistance wires as heating materials. The resistance wires generally include pure metal resistance wires and alloy resistance wires. However, during use, resistance wires have weak tensile strength and poor bending resistance, so there are The hidden danger of accidents such as electric shock caused by fracture, and the service life is short. [0003] Chinese invention patent application CN106667162A discloses an electric heating blanket, which includes a blanket layer, a heating element layer and an outer layer, and a power input terminal. The electric...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/34H05B3/02
CPCH05B3/02H05B3/34
Inventor 郑亦炎曾维麟习英杰蔡君
Owner 厦门宝益科技有限公司
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