Invention Grant
- Patent Title: Rotor
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Application No.: US16655888Application Date: 2019-10-17
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Publication No.: US11233434B2Publication Date: 2022-01-25
- Inventor: Tatsuya Ohzu
- Applicant: HONDA MOTOR CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: HONDA MOTOR CO., LTD.
- Current Assignee: HONDA MOTOR CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Paratus Law Group, PLLC
- Priority: JPJP2018-197884 20181019
- Main IPC: H02K1/32
- IPC: H02K1/32 ; H02K1/27

Abstract:
A rotor includes: a rotor core having: a rotor shaft hole; and a plurality of magnet insertion holes; and a plurality of magnetic pole portions. The rotor core includes a plurality of refrigerant flow passage hole portions. A refrigerant flow passage hole portion includes: a first refrigerant flow passage hole located on a virtual line connecting a circumferential center of each magnetic pole portion and a center of the rotor core; and a pair of second refrigerant flow passage holes facing each other across the first refrigerant flow passage hole on both circumferential end portion sides of each magnetic pole portion. The first refrigerant flow passage hole and the pair of second refrigerant flow passage holes include inner radial side apex portions protruding radially inward. Outer peripheral walls of the pair of second refrigerant flow passage holes include outer radial side apex portions protruding radially outward.
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