| 摘要 |
PURPOSE: A vent filter is provided to improve the drainage by attaching a ventilation film to a convex supporting unit before protruding toward to a cap to discharge fluid flowing in between the cap and the ventilation film to the outside through a ventilation hole formed between combining bridges. CONSTITUTION: A vent filter comprises a main body(110), a cap(120), and a ventilation film(130). The main body is assembled to a vent hole which is penetrated into a housing, and has an inner hole(111) which is connected to the vent hole. The cap has multiple combining bridges(122) corresponding to multiple combining grooves(116) which are concavely formed on the upper outer periphery of the main body, and openings(124) which are opened downwards in order to form ventilation holes(128) between the adjacent combining bridges when combining with the combining grooves. The ventilation film is arranged between the main body and the cap in order to cover the entrance of the inner hole. The ventilation film transmits gas and blocks fluid. |
