Resolver for detecting rotational angle of motor

摘要

A resolver includes a resolver rotor that is provided in an outer circumference of the motor shaft and rotates integrally with the motor shaft, a resolver stator that has a plurality of coils and surrounds an outer circumference of the resolver rotor such that a rotational angle detection gap is provided between the outer circumference of the resolver rotor and the resolver stator, a housing that houses the resolver rotor and the resolver stator and has an opening for extracting wires of the coils in an outer circumference side of the resolver stator, a wire harnessing member provided to extend from the resolver stator to an outer side of the housing through the opening and consolidates wires of a plurality of the coils, and a cover member that covers a gap between the opening and the wire harnessing member.

主权项

1. A resolver that is configured to detect a rotational angle of a motor shaft, comprising:
a resolver rotor that is provided in an outer circumference of the motor shaft and rotates integrally with the motor shaft; a resolver stator that has a plurality of coils and surrounds an outer circumference of the resolver rotor such that a rotational angle detection gap is provided between the outer circumference of the resolver rotor and the resolver stator; a housing that houses the resolver rotor and the resolver stator and has an opening for extracting wires of the coils in an outer circumference side of the resolver stator; a wire harnessing member provided to extend from the resolver stator to an outer side of the housing through the opening and consolidates wires of a plurality of the coils; and a cover member that covers a gap between the opening and the wire harnessing member, wherein the opening is directed to a radial direction, the cover member has a base portion having a curved surface in an arc shape that has a dimension longer than a dimension of the opening in a circumferential direction, and the cover member is configured to swing together with the wire harnessing member in the circumferential. direction so as to cover the opening regardless of a circumferential position the wire harnessing member.