Car AC generator with a slip ring support and a slinger unit that cooperate to form a labyrinth that prevents fluid entry into an interior chamber

摘要

To prevent water entering a labyrinth from flowing into contact portions between slip rings and brushes, the labyrinth is formed as a stepped structure by an annular slinger-side stepped portion projecting toward a generator shaft from the inner peripheral surface of a slinger unit and a slip ring-side stepped portion projecting toward the slinger unit from the outer peripheral surface of a slip ring support unit.