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Full-sealed structure of automobile headlamp

A fully sealed technology for automobile headlights, which is applied to vehicle parts, lighting and heating equipment, transportation and packaging, etc., can solve the problems of water vapor condensation and the decrease of the sealing performance of the shell, and achieve the balance of internal and external pressure and ensure the illumination of the ground , the effect of reducing production costs

Inactive Publication Date: 2015-10-07
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It mainly solves the shortcomings of the existing automobile headlights, such as the obvious decline in the sealing performance of the shell and the frequent occurrence of water vapor condensation inside.

Method used

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  • Full-sealed structure of automobile headlamp
  • Full-sealed structure of automobile headlamp

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Experimental program
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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and traditional semi-enclosed headlight the present invention will be further described.

[0020] see figure 1 The traditional semi-enclosed headlight shown includes the original light distribution mirror 1, the original lamp housing 2, and the original sealant 3 (to connect and seal the light distribution mirror and the lamp housing to prevent water vapor from entering the lamp body), and the original ventilation The cap 4 is arranged at the rear of the lamp housing to circulate air and maintain the balance of internal and external air pressure, but at the same time it also brings the risk of moisture entering the lamp body. Moisture molecules in the air enter the lamp body through the breathable cap, and are easy to condense on the optical mirror, forming fogging.

[0021] see figure 2 The fully sealed structure of a kind of automobile headlights shown includes a light distribution mirror 11 and a lamp housing 12. The ...

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Abstract

The invention relates to a full-sealed structure of an automobile headlamp. The full-sealed structure comprises a lens and a lamp housing. The edge of the lens is matched with a glue groove of the lamp housing and sealed by PUR glue. The full-sealed structure is characterized in that the lower portion of the lamp housing is provided with a self-balancing valve; and a self-balancing balloon is connected with the self-balancing valve in a matching mode and communicated with an inner cavity of a lamp body. The full-sealed structure of the automobile headlamp has following beneficial effects: reliable sealing performance is obtained; the headlamp is prevented against water ingress due to fogging; the headlamp can be used in harsh weather; and illuminance of ground of the headlamp is ensured in favor of driving safety.

Description

technical field [0001] The invention relates to an automobile lighting component structure, in particular to a fully sealed structure of an automobile headlight. Background technique [0002] At present, the headlights of automobiles generally adopt a semi-sealed structure, that is, the lamp cavity communicates with the outside air through a breathable film or a breathable cap to balance the internal and external atmospheric pressure difference caused by turning on or turning off the lights. There are two common semi-sealing measures: [0003] Mid-to-high-end lamps generally adopt the form of vent pipe + filter cloth (one-way breathable membrane technology) to prevent liquid water from entering the lamp body and maintain air pressure balance. Generally, low-end vent caps use U-shaped rubber sleeves and filters to maintain The internal and external pressure balance of the lamp and the air exchange situation. [0004] Regardless of the above forms, as long as the lamp is not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/10F21V31/03F21V31/04F21W101/10
CPCF21S43/00F21V31/03F21V31/04F21W2102/00
Inventor 刘江涛王姝
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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