Abstract

A dehumidifier of a lamp for a vehicle, and a lamp including the same, can include a dust cover having at least one communicate hole penetrating between an inside and an outside of the lamp, at least one valve disposed in the at least one communicate hole and configured to selectively open the at least one communicate hole depending on a temperature and a pressure inside the lamp, and a desiccant disposed inside the dust cover and configured to absorb a moisture in the lamp.

IPC Classes  ?

• F21S 45/30 - Ventilation or drainage of lighting devices
• F21S 45/10 - Protection of lighting devices
• F21S 45/20 - Promoting gas flow in lighting devices, e.g. directing flow toward the cover glass for demisting
• F21S 45/50 - Waterproofing

Abstract

A dehumidifier, and a lamp for a vehicle including the same, can include a dust cover including first communication hole therein, an absorbent cover coupled to the dust cover, wherein a desiccant is accommodated between the dust cover and the absorbent cover, wherein the absorbent cover includes at least one second communication hole therein corresponding to the first communication hole, and a valve configured to selectively open the first communication hole and the second communication hole through a first bracket and a second bracket, which are operated and moved by a shape memory alloy of the valve that is deformed by a temperature difference between an inside of the dust cover and an outside of the dust cover.

IPC Classes  ?

• F21S 45/33 - Ventilation or drainage of lighting devices specially adapted for headlamps
• F21S 45/20 - Promoting gas flow in lighting devices, e.g. directing flow toward the cover glass for demisting
• F21S 45/37 - Ventilation or drainage of lighting devices specially adapted for signal lamps
• B60Q 1/00 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor