ALTERNATING CURRENT OSCILLATOR FOR VEHICLE

摘要

PURPOSE: An alternating current oscillator for a vehicle is provided to prevent water infiltrated in a labyrinth from being flown in a slip ring and a portion of a brush. CONSTITUTION: An alternating current oscillator for a vehicle comprises a labyrinth(272)which consists of a slinger support part(122) of a cylinder shape and a slinger part(152) of a cylinder shape. The slinger support part(122) is fixed at a shaft(4) of an electric generator, and the slinger part(152) is fixed at an outside of the electric generator so as to surround the slinger support part(122). The labyrinth(272) is formed in an end and attachment part by an end part attachment part(31) of a slinger side and an end part attachment part(32) of a slip ring side. The end part attachment part(31) of a slinger side is protruded toward the generator shaft side in an inner plane of the slinger part(152), and the end part attachment part(32) of a slip ring side is protruded toward the slinger part(152) side in a circumference plane of the slip ring support part(122). A ring-shaped groove(33) is formed at a circumference plane of the slip ring support part(122).