Automobile skylight pressurized sealing system

Abstract

The invention provides an automobile skylight pressurized sealing system and belongs to the technical field of automobile skylight sealing. The automobile skylight pressurized sealing system comprises a skylight opening flange, skylight glass and a seal ring provided with a cavity in the inside, wherein the seal ring is fixed on the edge of the skylight glass and the skylight opening flange, and an interface communicated with the inside cavity is further arranged on the seal ring and communicated with an air inflating and deflating device including a magnetic valve and an electric air pump. When automobile skylight is opened or closed, the magnetic valve in the air inflating and deflating device can be controlled to discharge compressed air in the seal ring in to the atmosphere, the seal ring contracts under the elastic effect or the sucking negative-pressure effect of the electric air pump to enable sealing matched portions of the automobile skylight to be in clearance fit, and the friction resistance is very small when the automobile skylight is opened or closed. After the automobile skylight is closed, the electric air pump of the air inflating and deflating device inflates the air into the seal ring to enable the seal ring to expand under the air pressure effect, and the sealing matched portions of the automobile skylight are in clearance fit to form reliable sealing.

Description

technical field [0001] The invention belongs to the technical field of automobile sunroof sealing, in particular to a control system for sealing the automobile sunroof by using air pressure technology. Background technique [0002] At present, the car sunroof widely used in automobiles, whether it is a built-in car sunroof or a flip-out car sunroof, mainly includes a sunroof frame assembly, a sunroof glass assembly, a sunroof motor assembly, etc. The sunroof frame assembly is installed Under the car roof and corresponding to the opening of the sunroof, the sunroof glass assembly is installed on the guide rail of the sunroof frame assembly. Driven by the sunroof motor assembly, the sunroof glass assembly can be opened or closed; built-in cars The glass assembly of the sunroof has the functions of ramping up, ramping down, sliding back and forth under the car roof, and closing; the glass assembly of the flip-out car sunroof has the functions of ramping up, sliding back and for...

AI Technical Summary

Problems solved by technology

[0004] The problem with the sealing structure of the above-mentioned automobile sunroof is: if the sealing ring has small elasticity or small interference, the opening and closing resistance of the sunroof in the process of opening or closing is small, but the sealing effect is poor; in order to achieve a good sealing effect, usually The elasticity or interference of the sealing ring increases, so that when the sunroof is opened or closed, its opening and closing resistance is very large, which often leads to the action of the anti-pinch function of the sunroof, making the opening or closing of the sunroof not in place, sometimes due to too much opening and closing resistance. Big enough to lift or tear the seal

However, due to the sealing structure of the car sunroof, the sunroof is still opened or closed by force, which does not fundamentally solve the problem of the relatively large opening and closing resistance between the sunroof glass and the sealing ring.

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