Pressure balancing breather for light-emitting diode (LED) lamp

A technology for LED lamps and respirators, which is used in semiconductor devices of light-emitting elements, point light sources, lighting and heating equipment, etc., can solve the problems of fatigue of sealing strips, burning failure of lamps, blocking of air exchange ports, etc., and achieves excellent weather resistance. , to achieve the effect of long-term stable operation

CN102889567BActive Publication Date: 2015-07-15广东宏泰智慧城市科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-07-15

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Abstract

A pressure balancing breather for a light-emitting diode (LED) lamp comprises a connector connected with a lamp body, and is characterized in that the connector is a 'cross'-shaped hollow connector; a ceramic filter is sleeved at a longitudinal end of the hollow connector; a compressing cover is arranged at the periphery of the ceramic filter, and is connected with a transverse end of the hollow connector by covering a part from the ceramic filter to the middle of the hollow connector; the other end of the hollow connector in the longitudinal direction is connected with the lamp body; through holes are respectively formed in the top and the bottom of the longitudinal connecting end of the hollow connector; and the through hole in the bottom of the longitudinal connecting end is communicated with the inside of the lamp body. By the structure, the pressures on the inner side and the outer side of a shell are balanced when the temperature and the pressure of a lamp housing are changed. As long as air is in contact with the filter, the air inside the lamp body and the air outside the lamp body can be freely exchanged. The ceramic filter can effectively filter water and dust, and the corrosion resistance and the weather resistance of the ceramic filter are higher than those of a breathable film, so that the lamp can stably run for a long time.
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Description

technical field

[0001] The invention relates to the application field of LED lamps, in particular to a pressure balance respirator for LED lamps. Background technique

[0002] Lamp housings arranged outdoors are frequently subjected to external temperature and pressure changes. Constantly changing temperatures, dust, dirt, and moisture greatly affect the stability and lifespan of outdoor lighting fixtures. For example, rainfall can cause a sharp temperature drop in the luminaire housing. A sharp drop in temperature will result in a vacuum of 150mbar or greater inside the enclosure. This allows air and moisture to enter the interior of the enclosure through the sealed gap. Moisture adheres to the inside walls of the cabinet and condenses into beads. This will seriously affect the performance of the product. The constant change of temperature causes the sealing strip to change with the stress, and finally makes the sealing strip fatigue-this means that not only moisture, ...

Examples

Embodiment Construction

[0018] In conjunction with the accompanying drawings, further description, such as figure 1 , figure 2 Shown:

[0019] A pressure-balanced respirator for LED lamps, including a connecting piece 1 connected to the lamp body, characterized in that: the connecting piece 1 is a hollow connecting piece in the shape of a "cross", and one longitudinal end of the hollow connecting piece 1 A ceramic filter 2 is socketed, and a tight gland 3 is arranged on the periphery of the ceramic filter 2, and the tight gland 3 is connected to the transverse end of the hollow connector 1 by covering the ceramic filter 2 to the middle of the hollow connector 1; The other longitudinal end of the connector 1 is connected to the lamp body, and the top and bottom of the longitudinal connection end are provided with through holes 11 and 12, and the bottom through holes 12 communicate with the interior of the lamp body, so that the filtered air enters the lamp body, which realizes As long as there is a...