Lamp water proof air breather

• Main Author: TANG ZHENGFANG
• Format: Patent
• Language: Chinese; English
• Published: 05.12.2007
• Subjects: BLASTING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LIGHTING; MECHANICAL ENGINEERING; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; WEAPONS

A lamp waterproof ventilating device, comprising a lamp shell, which is characterized by comprising a ventilating nozzle whose one end is communicated with an inner cavity of the lamp shell, the other end is covered with a gas and liquid filtering cover made of micropore material. Due to the adoption of such structure, the pressure of the lamp shell will increase when the external temperature rises, and the pressed air in the lamp shell will be relived through an installation hole, the gas and liquid filtering cove; when the external temperature decreases, the pressure in the lamp shell will reduces and the air will enters into the lamp shell through the gas and liquid filtering cove and the installation hole, to keep the external and internal air of the shell balance, thereby preventing the deformation of the lamp shell and the water leakage of the lamp due to the deformation of the lamp shell. So the utility model can not only prevent the deformation of the lamp shell, and the negative pressure water absorp