Car lamp ventilating structure

• Main Authors: JIN RUHE, PANG HONGLI, JING JIE, LIU YANG, XU JIANGBIN
• Format: Patent
• Language: Chinese; English
• Published: 13.02.2013
• Subjects: BLASTING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

The utility model provides a car lamp ventilating structure which is used for balancing the difference of pressures inside and outside a lamp chamber and solving the technical problem of water mist of the lamp. The car lamp ventilating structure comprises a movable hydrophobic membrane assembly, a dual-end ventilating pipe, a return spring and a top cap, wherein the movable hydrophobic membrane assembly is sleeved inside the dual-end ventilating pipe, an oil membrane sealing structure is arranged between the outer wall of the movable hydrophobic membrane assembly and the inner wall of the dual-end ventilating pipe, one end of the dual-end ventilating pipe is communicated with a car lamp chamber, the other end of the dual-end ventilating pipe is provided with the top cap, and the return spring is arranged between the movable hydrophobic membrane assembly and the top cap. The car lamp ventilating structure has the characteristics of compact structure and stable performance, and can be used for balancing the dif