Automatic shading device for automobile

Abstract

The invention discloses an automatic shading device for an automobile. The automatic shading device comprises a housing, wherein the housing is of a semi-open type structure, a container is arranged in the housing, the container is filled with a low-boiling point solvent at 39 to 61 DEG C, a piston is connected to the inner wall of the container in a sliding mode, the piston is connected with a rotating shaft of a drum by virtue of a link mechanism, when the piston does a linear motion, the drum is driven to axially rotate by virtue of the link mechanism, and an elastic piece which is used fordriving the piston to reset is connected between the drum and the piston. The automatic shading device has the advantages of the reasonable and clever structure, convenience in use, the simple structure and low cost, the low-boiling point solvent filled in the container is evaporated at high temperature, so that the liquid phase is converted into the gas phase, the intensity of pressure in the container is increased, the piston is pressed to drive the drum to rotate, so that a sun shield covers a window glass, when a driver uses the automobile, the sun shield is reset so as to prevent the sunshield from suddenly covering when the automobile is driven, so that danger is not caused, the automatic start and stop of the sun shield are realized, and the sun protection on the automobile can bepreferably implemented.

Description

technical field [0001] The invention relates to the technical field of automobile supplies, in particular to an automatic sunshade device for automobiles. Background technique [0002] As we all know, when a car is parked and parked under the scorching sun, the temperature inside the car will rise sharply because the car body is closed. Only by turning on the air conditioner for a long time to the maximum can the temperature drop, which not only wastes fuel, but also pollutes the environment; on the other hand, under such harsh conditions, the spare parts in the car are more likely to age, so the service life of the car will be shortened . For this reason, the market has released many automobile sunshade and sunscreen products, such as parasols, awnings, sunshade curtains, etc., which play the role of sunshade to a certain extent, but these products are very inconvenient and wasteful no matter they are unfolded or packed up. Time is not beautiful enough. Contents of the ...

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Problems solved by technology

[0002] As we all know, when a car is parked and parked under the scorching sun, the temperature inside the car will rise sharply because the car body is closed. Only by turning on the air conditioner for a long time to the maximum can the temperature drop, which not only wastes fuel, but also pollutes the environment; on the other hand, under such harsh conditions, the spare parts in the car are more likely to age, so the service life of the car will be shortened

For this reason, the market has released many automobile sunshade and sunscreen products, such as parasols, awnings, sunshade curtains, etc., which play the role of sunshade to a certain extent, but these products are very inconvenient and wasteful no matter they are unfolded or packed up. time, not beautiful enough

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