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1. (WO2018181244) ROTOR

Pub. No.:    WO/2018/181244    International Application No.:    PCT/JP2018/012291
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Wed Mar 28 01:59:59 CEST 2018
IPC: H02K 1/32
H02K 1/22
H02K 1/27
H02K 9/19
Applicants: HONDA MOTOR CO., LTD.
Inventors: YOSHIZAWA Takuya
吉澤 拓也
Title: ROTOR
The objective of the present invention is to enable a rotor of a rotating electrical machine to be cooled appropriately. To this end, a shaft 100 through which cooling oil is caused to flow is provided with a substantially cylindrical rotor yoke 110 fitted to the shaft 100, a magnet 130 fitted to the rotor yoke 110, and a first end plate 160 which butts against one end of the rotor yoke 110, wherein: the rotor yoke 110 has a cooling oil passage 113 which is formed on the inner circumferential side of the magnet 130 and through which the cooling oil flows in an axial direction; the rotor yoke 110 accepts an axial direction pressing force via the first end plate 160; and the rotor yoke 110 and the first end plate 160 form a sealing portion which seals the cooling oil, in a segment positioned between the cooling oil passage 113 and the magnet 130 in the radial direction.