US 2026/0238056 A1 · MOTOR UNIT

Abstract

The motor unit includes a shaft that extends along an axial direction, a rotor that is fixed to an outer peripheral surface of the shaft, and a stator that is disposed on a radially outer side of the rotor. The shaft includes a first shaft flow path that extends in the axial direction in the shaft, and at least one second shaft flow path that branches from the first shaft flow path and extends to an opening of the outer peripheral surface of the shaft. The rotor includes at least one rotor flow path that extends from an opening of an inner peripheral surface of the rotor to an opening of an outer peripheral surface of the rotor and that supplies a refrigerant toward the stator. Each of the at least one rotor flow path communicates with any of the at least one second shaft flow path.

Claims4

Dependent claims

A motor unit comprising:

a shaft extending along an axial direction;
a rotor fixed to an outer peripheral surface of the shaft;
and
a stator disposed on a radially outer side of the rotor, wherein:
the shaft includes a first shaft flow path extending in the axial direction in the shaft, and one or more second shaft flow paths branched from the first shaft flow path and extending to an opening of the outer peripheral surface of the shaft;
the rotor includes one or more rotor flow paths extending from an opening of an inner peripheral surface of the rotor to an opening of an outer peripheral surface of the rotor, and configured to supply a refrigerant toward the stator;
and
each of the one or more rotor flow paths is in communication with any one of the one or more second shaft flow paths.

5 more elements

Dependencies are inferred from the claim text.

Motor unit

Life of this patent

Motor unit

Life of this patent

Abstract

Claims4