MOTOR AND IN-VEHICLE APPARATUS

摘要

A motor may include a rotor including a shaft having a central axis; a stator opposite to the rotor, and comprising coils; a bearing supporting the shaft; a metallic bearing holder covering the stator and supporting the bearing; at least one busbar on an opposite axial side of the bearing holder and including a connection terminal connected with a a coil wire extending from one of the coils; and a coil support between the stator and the bearing holder and fixed to the stator. The bearing holder may include at least one through hole. The coil support may include at least one insulating support portion comprising an opening portion. A portion of the opening portion of the insulating support portion having a smallest cross-sectional area in the opening portion lies inside of an edge of one of the through holes of the bearing holder.

主权项

1. A motor comprising:
a rotor comprising a shaft having a central axis extending in an axial direction as a center thereof; a stator arranged opposite to the rotor, and comprising a plurality of coils; a bearing arranged to support the shaft; a metallic bearing holder arranged to cover the stator from an axial side thereof, and arranged to support the bearing; at least one busbar arranged on an opposite axial side of the bearing holder with respect to the stator, and comprising a connection terminal connected with a coil end of a coil wire extending from a corresponding one of the coils; and a coil support arranged between the stator and the bearing holder, and fixed to the stator; wherein the bearing holder comprises at least one through hole arranged to pass therethrough in the axial direction to have a corresponding one of the coil ends pass therethrough; the coil support comprises at least one insulating support portion comprising an opening portion arranged to pass therethrough in the axial direction to have a corresponding one of the coil ends pass therethrough; and a portion of the opening portion of the at least one insulating support portion which has a smallest cross-sectional area in the opening portion lies inside of an edge of a corresponding one of the at least one through hole of the bearing holder when viewed in the axial direction.