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Manufacturing method of new energy intelligent automobile printed circuit board

A technology for printed circuit boards and smart cars, which is applied to printed circuit components, secondary treatment of printed circuits, circuit devices, etc., can solve problems such as poor salt spray resistance, short protection period, poisonous and harmful, etc., and achieve improved Electromagnetic shielding performance, reducing the adverse effects of heat dissipation, and increasing the effect of heat dissipation

Active Publication Date: 2022-01-04
深圳市星之光精密电路有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing three anti-paints mainly have defects such as short protection period, poor salt spray resistance, strong smell, poisonous and harmful in the actual use process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A method for manufacturing a printed circuit board of a new energy smart car, comprising the following steps:

[0044] (1) Base map plate-making: design the printed circuit board, then draw a photographic base map, and process the actual shape;

[0045] (2) filled with conductive material;

[0046] (3) Metallization of the hole: open a through hole according to the base drawing, and plate a layer of metal in the hole;

[0047] (4) Graphics transfer: transfer the circuit graphics from the photo master plate to the copper clad laminate by screen printing method and photochemical method;

[0048] (5) Etching: use an etching solution to corrode unnecessary copper foil on the circuit board, and the etching solution is ferric chloride, acid copper chloride, basic copper chloride, ammonium persulfate or ammonia water;

[0049] (6) Metal coating: use electroplating or chemical plating to coat a layer of conductive metal on the copper foil of the printed board, and the conductiv...

Embodiment 2

[0056] An insulating protective coating, the same as Example 1, the difference is that the insulating and heat-conducting filler is a composite modified boron nitride nanosheet, and its preparation method comprises the following steps:

[0057] S1. Weigh the water-soluble salt of iron, zinc or copper and dissolve it in deionized water, add silk protein and mix thoroughly to obtain the first mixed solution;

[0058] Wherein, the mixing weight ratio of the water-soluble salt to the silk protein and deionized water is 0.8:1:100;

[0059] S2. Place the first mixed solution in a microwave reactor for microwave treatment, the microwave power is 500-1000W, and the treatment time is 1-5min. After the treatment is completed, the second mixed solution is obtained, and the second mixed solution is sequentially Filter, concentrate, and dry to obtain a dry product;

[0060] S3. Transfer the dried product into a high-temperature atmosphere electric furnace, and perform pyrolysis treatment ...

Embodiment 3

[0066] A kind of insulating protective coating, with embodiment 2, difference is that, the preparation method of the boron nitride nanoplate of described composite modification also comprises the following steps:

[0067] S6. Stir and disperse the composite modified boron nitride nanosheets in tetrahydrofuran, add bisphenol A epoxy resin, mix well, evaporate part of the solvent, and add curing agent dropwise while stirring at 80-100°C After the solution is added dropwise, continue to keep warm and stir to react for 10-15 hours. After the reaction is completed, the precipitate is separated, washed with absolute ethanol and deionized water in sequence, and vacuum-dried to obtain the solution.

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PUM

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Abstract

The invention provides a manufacturing method of a new energy intelligent automobile printed circuit board and belongs to the technical field of printed circuit board preparation. The method comprises the following steps of: base pattern platemaking; conductive material filling; hole metallization; pattern transfer; etching; metal coating; solder resist coating; character printing; soldering flux coating; lamination combination; and surface treatment. According to the surface treatment, one or two layers of insulating protective coatings are sprayed on the surface of a multi-layer printed circuit board. According to the method of the invention, through the surface treatment, the prepared circuit board has moisture-proof and salt mist-proof protection effects, and also has good heat dissipation effect and electromagnetic shielding effect.

Description

technical field [0001] The invention relates to the technical field of printed circuit board preparation, in particular to a method for manufacturing a printed circuit board of a new energy intelligent vehicle. Background technique [0002] New energy vehicles refer to the use of unconventional vehicle fuels as power sources (or the use of conventional vehicle fuels, the use of new vehicle power devices), integrated vehicle power control and advanced technology in driving, the formation of advanced technical principles, with Vehicles with new technology and new structure, new energy vehicles in a broad sense, also known as alternative fuel vehicles, including pure electric vehicles, fuel cell electric vehicles and other vehicles that use non-petroleum fuels, as well as hybrid electric vehicles, ethanol gasoline vehicles, etc. Vehicles using non-petroleum fuels, all existing new energy vehicles are included in this concept, and are specifically divided into six categories: hy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/28H05K1/02
CPCH05K3/28H05K1/0209H05K1/0218
Inventor 晏泗群
Owner 深圳市星之光精密电路有限公司
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