Title:
ROTATING ELECTRICAL MACHINE AND VEHICLE DRIVE DEVICE EQUIPPED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2023/243161
Kind Code:
A1
Abstract:
The purpose of the present invention is to cool stator coils and rotor magnets in accordance with the rotational speed of the rotor. This rotating electrical machine comprises a rotor 110 and a stator 140 that is disposed on the radially outer side of the rotor 110. A rotor shaft 111 is provided on the inner circumferential side of the rotor 110, and a shaft channel 120 is provided in the interior of the rotor shaft. The rotor 110 has: a first channel 131a that extends outward in a radial direction of the rotor shaft 111, and that has a first discharge port that opens outward in the radial direction; and a second channel that extends outward in the radial direction of the rotor shaft 111, extends through the interior of a rotor core 112 in an axial direction, and then extends outward in the radial direction, and that has a second discharge port that opens outward in the radial direction. The first channel 131a and the second channel are connected to a shaft channel 120, and the second discharge port is disposed further outward in the radial direction than the first discharge port.
Inventors:
FUJIMA YURI (JP)
HORI MASAHIRO (JP)
ITAYA TAKAKI (JP)
GOTO HIDEAKI (JP)
HORI MASAHIRO (JP)
ITAYA TAKAKI (JP)
GOTO HIDEAKI (JP)
Application Number:
PCT/JP2023/008776
Publication Date:
December 21, 2023
Filing Date:
March 08, 2023
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02K9/19; H02K1/32
Foreign References:
| CN111884428A | 2020-11-03 | |||
| JP2019187063A | 2019-10-24 | |||
| JP2011142788A | 2011-07-21 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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