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Fog-proof front light

A technology for car lights and anti-fog, which is applied to motor vehicles, road vehicles, gas/waterproof devices, etc.

Inactive Publication Date: 2009-11-25
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the disadvantage that the existing car lights are easy to enter moisture during the ventilation process, and provides a car light that can prevent moisture from entering the lamp while meeting the requirements of air expansion and contraction in the lamp

Method used

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  • Fog-proof front light

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Experimental program
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Embodiment Construction

[0013] Referring to the attached picture:

[0014] The anti-fog vehicle lamp of the present invention includes a lampshade, a bulb, and a lamp housing 1. The lamp shade and the lamp housing 1 enclose the inner cavity of the lamp to form a closed cavity. The lamp housing 1 is connected with a vent pipe 2, and the vent pipe 2 The inner chamber adopts an elastic membrane 5 to isolate from the outside atmosphere.

[0015] The elastic membrane 5 is stuck between the end cap 4 and the vent pipe 2 . The inner wall of the vent pipe 2 is provided with a desiccant storage tank 3 .

[0016] When the lamp is turned on, the air pressure in the lamp increases, the volume expands, and the elastic membrane 5 expands outward, keeping the pressure inside the lamp unchanged. The end cap 4 restricts the elastic membrane 5 from widening out to avoid damage. At the same time, the moisture in the air is sucked away by the desiccant stuck in the slot 3, reducing the moisture content of the air in ...

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PUM

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Abstract

The invention discloses a fog-proof front light, comprising a lampshade, a bulb and a lamp shell; the inner cavity of the light is closed as a sealed cavity by the lampshade and the lamp shell; the lamp shell is communicated with an air pipe, the inner cavity of the air pipe is isolated from external air by an elastic film. The invention has the advantages that when the requirement of air expansion and shrinkage in the light is met, humidity can be prevented from entering the light at the same time so as to reduce mist in the front light.

Description

(1) Technical field [0001] The invention relates to a vehicle lamp. (2) Background technology [0002] The problem of car light fogging not only affects the lighting and the appearance of the car, but also threatens the service life of the bulb and the safety of the circuit inside the lamp. In addition, the long-term condensation of water vapor on the surface of the car light reflector and lens will lead to the corrosion of the car light material and the acceleration of the material. A series of consequences such as aging deformation, optical regulation effect being destroyed, etc. Due to the unreasonable distribution of the temperature field in the design of the car lamp, the air humidity in the car lamp changes with the change of the ambient temperature. When the water vapor condensation criterion is reached and satisfied, the car lamp will be fogged. [0003] In view of the complexity of the current car lamp design, the distribution of the temperature field of the car la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/10F21V15/02F21V31/00F21W101/02F21W107/10
Inventor 刘红林娇弟王莉林康王赓劼
Owner ZHEJIANG UNIV OF TECH