| 摘要 |
PURPOSE: A vacuum switch for preventing incoming of moisture in a vehicle is provided to suppress bad contact and bad working by preventing water or moisture from coming into a rubber cap and preventing corrosion of a terminal connection part. CONSTITUTION: A vacuum switch(10) for preventing incoming of moisture in a vehicle comprises a housing(11) combined to a casing of a booster by a bolt; a cover part(12) mounted to the upper end portion of the housing; a terminal connection part(13) combined to the central part of the cover part; a lead wire(15) fixed to the front end of the terminal connection part; and a combining part(14) extended to the lower end portion of the housing in a stepped shape. A rubber cap(20), having a penetration part(21) through which the lead wire passes, is sealed up to the upper end portion of the housing. The rubber cap is compressed on the boundary surface of the cover.
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