Automobile lamp rear cover for quickly filtering fog, automobile lamp assembly and automobile

Abstract

The invention relates to an automobile lamp, and particularly discloses an automobile lamp rear cover for quickly filtering fog. A gas travelling route is formed in the automobile lamp rear cover; theautomobile lamp rear cover comprises a rear cover shell (1) and an end cover of the rear cover (6) which is connected with the rear cover shell (1); a water vapour filtering device (2), a fog absorption device (3), a gas flow channel device (4) and a drying device (5) are arranged on from one side, far away from the end cover of the rear cover (6), on the gas travelling route in sequence; a labyrinth flow channel structure (43) which is used for extending the gas travelling route is formed in the inner cavity of the gas flow channel device (4). In addition, the invention also discloses an automobile lamp assembly and an automobile. The automobile lamp rear cover disclosed by the invention can effectively filtering the water vapour which enters the automobile lamp, so that the fog formation probability in the using process of the automobile lamp is reduced, the irradiating effect of the automobile lamp is improved, and the quality of the automobile lamp is improved.

Description

technical field [0001] The invention relates to a car lamp, in particular to a car lamp back cover for rapidly filtering mist. In addition, the present invention also relates to a vehicle lamp assembly including a vehicle lamp rear cover for rapidly filtering mist. Further, the present invention also relates to an automobile comprising the vehicle light assembly. Background technique [0002] The curved surface of car lights and the newly added new technology of LED headlights make the fogging and condensation on the inner surface of the transparent glass bulb of car lights on the curved surface of the cold area and the sharp corner transition area more serious, and the fogging inside the car light The prerequisite for condensation is that the humidity inside the lamp is very high, and there is a temperature difference between the inside and outside of the lamp glass. The greater the temperature difference, the more serious the fogging and condensation will be. However, bec...

AI Technical Summary

Problems solved by technology

However, the inner shell of some car lights has a relatively high micro-moisture content. The water vapor formed by the burst of a large amount of micro-moisture released within half an hour of the start of lighting increases the humidity inside the car lights, and the lights with anti-fog treatment The formation of a flat water film on the inner surface of the shell is slow and the coating area is small. It cannot absorb a large amount of water molecules in the lamp that exploded in a short time. The accumulated water flowing at the bottom of the lamp shell will turn into water under the influence of the heat of the lamp The steam increases the humidity inside the car lamp. At this time, a large amount of water vapor in the shell is still fogging on the inner surface of the glass shell at the cold surface of the transparent glass shell of the car light, the sharp corner transition area, etc. due to the temperature difference. Condensation is heavier, and the beam divergence caused by fog and condensation on the inner surface of the coated glass bulb has caused a safety hazard

2. Desiccant packages such as silica gel, calcium chloride, and bentonite can also be installed in the lamp housing. The desiccant packages such as silica gel, calcium chloride, and bentonite are characterized by one-time use and irreversibility, and the drying and caking life is short. 1 ~2 months desiccant failure needs to be replaced, and some car lamp housings are slightly larger, requiring 2 to 4 desiccant bags, occupying a large space in the car lamp housing and touching the electrical parts of the housing, When the car is moving, the package is scattered due to impact and vibration, which increases the after-sales maintenance cost for the user and increases the safety hazard.

[0004] Based on the above reasons, the existing technology is difficult to effectively ensure the lower moisture content of the air entering the car lights, so as to avoid the occurrence of fog during the use of car lights and affect the use of car lights, thereby affecting the quality of car lights

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