High moisture permeability coating film patch for automobile lights

A technology for car lights and moisture permeability, which is applied in the direction of motor vehicles, road vehicles, and layered products. It can solve the problems of condensation and a large number of vent plugs, achieve good moisture absorption and moisture conduction performance, and avoid short circuits. , Maintain the effect of light reflection performance

Active Publication Date: 2016-02-10
PAN ASIAN MICROVENT TECH JIANGSU CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • High moisture permeability coating film patch for automobile lights
  • High moisture permeability coating film patch for automobile lights
  • High moisture permeability coating film patch for automobile lights

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] see Figure 1-Figure 4 , the embodiment of the present invention includes:

[0041] A large moisture permeability coating film patch for automobile lights, comprising: a film carrier tape 1 and a high moisture permeability coating film, the high moisture permeability coating film includes an expanded polytetrafluoroethylene film layer 2 and the coating 3 containing the hydrophilic group of hemp stalk core ultrafine powder, the coating 3 containing the hemp stalk core ultrafine powder hydrophilic group is coat...

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Abstract

A coating film tape having a high water vapor transmission rate for an automobile lamp comprises a thin film tape and a coating film having a high water vapor transmission rate. The coating film having a high water vapor transmission rate comprises a bulk polytetrafluoroethylene film layer and a coating that contains a hemp stem ultra-fine powder hydrophilic group. The coating that contains a hemp stem ultra-fine powder hydrophilic group is applied on the surface at one side of the bulk polytetrafluoroethylene film layer, and the coating that contains a hemp stem ultra-fine powder hydrophilic group is connected to the thin film tape in a composite manner. In the above manner, desirable moisture absorption performance and moisture guidance performance are obtained, and it is ensured that the phenomenon of fogging or condensation does not occur inside a housing of an automobile lamp. Therefore, lighting performance of the lamp is insusceptible to a moist air environment, condensation on surfaces of electrical and electronic elements is prevented to cause a short circuit, and permeation of rainwater and dust can be stopped, so that pollution-free dust tightness is achieved inside the housing of the automobile lamp. Moreover, volatile matter produced because a plastic shell of the lamp is heated can be adsorbed by hemp stem ultra-fine powder, so that light-ray reflection performance of a mirror surface of the lamp is kept.

Description

technical field [0001] The invention relates to a large moisture permeability coating film patch for automobile lamps. Background technique [0002] In the prior art, the air vent hole of the European car lamp has the theory of fog and dew condensation removal, and there is a sponge dustproof inside, and the air in the lamp can be moved in and out with the change of the temperature in the lamp, so that the lamp can be realized quickly. Disperse the fog inside to remove condensation, and the ventilated car lights with bent tubes will accumulate dust in the housing and corrode the electrical components soon after use. [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 rises. The larger air-permeable membrane patch method realizes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08B32B27/30B32B33/00F21V31/00F21W101/02F21W107/10
CPCF21S45/30B32B27/08
Inventor 张云丁荣华
Owner PAN ASIAN MICROVENT TECH JIANGSU CORP
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