Motor

A motor comprising:

• a rotating shaft extending in a central axial direction;
• a stator including a core back concentric with the rotating shaft;
• and
• a bracket housing the stator;
• wherein
• the bracket includes a cylindrical bracket main body, and a stator frame which faces the bracket main body and holds an outer surface of the stator on a radially inward side of the bracket main body, the bracket main body and the stator frame being defined by separate members;
• the bracket is provided with a cooling passage through which a cooling medium is able to flow, and an inflow port and an outflow port connected with the cooling passage;
• the cooling passage includes a first portion provided directly adjacent to a radially outermost surface of the bracket main body, a second portion provided radially between a radially innermost surface of the bracket main body and the stator frame, and a communication passage coupling an output of the first portion and an input of the second portion with each other;
• a cooling medium in the first portion and a cooling medium in the second portion flow in opposite circumferential directions with respect to one another;
• at least a portion of the communication passage is located at a position which is farther outward in a radial direction than any portion of the second portion such that the communication passage does not overlap a radially inner surface of the second portion when viewed in a direction extending along the communication passage;
• and
• a portion of the communication passage and a portion of the core back overlap one another when viewed from a radial direction which is orthogonal to both the central axial direction and the direction extending along the communication passage.