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Moisture permeating part for electric and electronic equipment of automobiles and manufacturing method of moisture permeating part

A technology of electronic equipment and manufacturing method, which is applied to vehicle parts, electronic equipment, lighting and heating equipment, etc., can solve the problems of a large number of ventilation plugs, inability to solve condensation and other problems, and achieve the effect of blocking the infiltration of dust

Active Publication Date: 2014-09-10
PAN ASIAN MICROVENT TECH JIANGSU CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce the blurred phenomenon of water vapor scattering on the light, this theory uses a large number of vent plugs, which cannot solve the problem of condensation in the lower air temperature area of ​​the shell

Method used

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  • Moisture permeating part for electric and electronic equipment of automobiles and manufacturing method of moisture permeating part

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] (2) Preparation of coating agent containing hydrophilic groups: Polyurethane, dimethylformamide solvent, hydrophilic group solvent and SiO 2 The mixture of fine powder is stirred and emulsified evenly to form a coating agent with hydrophilic groups;

[0032] (3) Manufacture of coating film: preparation before coating, adding the coating agent containing hydrophilic groups to the roller coating machine, adjusting the coating thickness, unwinding the expanded polytetrafluoroethylene microporous film, and applying glue in contact with the roller, In the next process, the coating film is dried by roller heating, winding, storage, aging and curing, and packaging;

[0033] (4) Manufacture of coated film patches: preparation of the carrier film and the coating film, low-viscosity connection of the carrier film and the coating film containing hydrophilic groups on both sides, half-cut die-cutting to the surface of the carrier tape , to separate the finished coating film patch ...

Embodiment

[0044] A moisture-permeable component for automotive electrical and electronic equipment, comprising: a rubber part 3, a coating film patch and a protective cover 4, the coating film patch includes a PE carrier film and a coating film, and the coating The membrane includes expanded polytetrafluoroethylene microporous film 1 and a coating 2 containing hydrophilic groups coated on the surface of expanded polytetrafluoroethylene microporous film, the PE carrier film and the coating film The two sides of the coating containing hydrophilic groups are compositely connected, the rubber part 3 and the coating film patch are welded to form a welded part, and a protective cover 4 is arranged outside the welded part. The manufacturing method specifically includes the following steps:

[0045] (1) Manufacture of expanded polytetrafluoroethylene microporous film 1: mix polytetrafluoroethylene dispersion resin and aviation kerosene solvent at a mass ratio of 5:1, heat-preserve and mature at ...

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Abstract

The invention discloses a moisture permeating part for electric and electronic equipment of automobiles and a manufacturing method thereof. The moisture permeating part comprises a rubber piece, a coating film paster and a protection cover. The manufacturing method includes: manufacturing a micropore expanded polytetrafluoroethylene film; preparing a coating agent with a hydrophilic group; manufacturing a coating film; manufacturing a coating film paster, manufacturing the moisture permeating part: preparing the rubber piece, the coating film paster and the protection cover, subjecting the rubber piece and the coating film paster to thermal compression welding to form a weld assembly, checking a weld surface, mounting the protection cover on the weld piece, checking and packing. The moisture permeating part for the electric and electronic equipment of the automobiles has the advantages that problems of misting, water condensing and dust accumulating in the electric and electronic equipment of the automobiles are solved radically, substitution for an outdated breathable cap (bolt) of a car lamp can be realized, an original shell structure needs not to be changed, and high-efficiency press fit and assembling can be achieved.

Description

technical field [0001] The invention relates to the field of moisture-permeable components, in particular to a moisture-permeable component for automotive electrical and electronic equipment and a manufacturing method thereof. Background technique [0002] The theory of defogging and decondensing the air hole of the curved tube of the European car lamp, there is a sponge inside to prevent dust, and the air in the lamp can be moved out and in with the change of the temperature inside the lamp, so as to quickly realize the defogging and decondensing in the lamp Exposure, bent tube ventilated car lights soon after the use of dust and electrical components rust inside the housing. [0003] The dew condensation theory of Gore Company in the United States: the lamp is through the air convection inside the lamp and the outside of the lamp to establish a kind of air pressure balance. The water vapor in the lamp will be discharged outside the lamp as the temperature inside the lamp r...

Claims

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Application Information

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IPC IPC(8): B60R16/00B60Q1/00
CPCB32B25/047B32B25/045B32B2264/0257B32B2266/025B32B2307/724B32B2457/00F21S45/30
Inventor 张云丁荣华昌建忠
Owner PAN ASIAN MICROVENT TECH JIANGSU CORP