Breathing device for large-power lamp

Abstract

The invention relates to a breathing device for a large-power lamp. The breathing device comprises a through hole (420), a breathable obstruct (300) and a water retaining wall (410), wherein the through hole (420) is formed on a lamp shell (400); the breathable obstruct (300) blocks the through hole (420) to allow gas but no dust to pass through; the water retaining wall (410) is arranged at the periphery of the through hole (420) and is provided with a gap (411); and the breathing device also comprises a sealing cover (200) closed on the water retaining wall (410). When the breathing device of the large-power lamp is implemented, as the water retaining wall is arranged and encloses the breathable obstruct, the breathing device has good waterproof performance and is difficult for water toenter the lamp; the breathable obstruct also ensures the smooth breathing of the lamp while ensuring that the water is difficult to enter the lamp; and air pressures inside and outside the lamp shellare easy to achieve balance; therefore, the lamp has good explosion-proof performance.

Description

technical field [0001] The invention relates to a component of a lamp, more specifically, to a breathing device for a high-power lamp. Background technique [0002] In the sealed lamps of 400 watts and greater than 400 watts in the prior art, because these larger power lamps will generate more heat when they are working, due to their sealing, the internal air pressure will increase due to temperature rise, which will cause Affect the internal parts of the lamp to burst and damage due to high temperature failure or high air pressure. In order not to increase the internal air pressure too high and solve the problem of air pressure balance inside and outside the lamp housing, it is necessary to install a breathing device on the high-power lamp housing. However, the breathing device used in the current high-power lamps is easy to cause water to enter the lamp. Or the shortcomings of poor breathing, which will adversely affect the waterproof performance and explosion-proof perfo...

AI Technical Summary

Problems solved by technology

[0002] In the sealed lamps of 400 watts and greater than 400 watts in the prior art, because these larger power lamps will generate more heat when they are working, due to their sealing, the internal air pressure will increase due to temperature rise, which will cause Affecting the internal parts of the lamp burst due to high temperature failure or high air pressure

In order not to increase the internal air pressure too high and solve the problem of air pressure balance inside and outside the lamp housing, it is necessary to install a breathing device on the high-power lamp housing. However, the breathing device used in the current high-power lamps is easy to cause water to enter the lamp. Or the shortcoming of poor breathing, which will have a negative impact on the waterproof performance and explosion-proof performance of the lamps

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