Title:
IN-WHEEL ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/131945
Kind Code:
A1
Abstract:
The in-wheel electric device according to the present invention is connected to a wheel, wherein a stator is provided with: a core material around which a coil is wound; an inverter circuit unit; a fixing member for fixing a bearing for rotationally supporting a rotating shaft of a rotor; and a stator cover for integrating the core material, the inverter circuit unit, and the fixing member. The inverter circuit unit is disposed on a first coil end-side of the core material. The fixing member and the stator cover form: an inverter flow path for flowing a refrigerant to the inverter circuit unit; a relay flow path connected to the inverter flow path and also connected to a second coil end-side of the core material on the opposite side to the first coil end-side; and a second coil end-side flow path connected to the relay flow path and leading the refrigerant along the second coil end.
Inventors:
IWANO RYUUICHIROU (JP)
ARAKI TAKAHIRO (JP)
ARAKI TAKAHIRO (JP)
Application Number:
PCT/JP2020/046898
Publication Date:
July 01, 2021
Filing Date:
December 16, 2020
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H02K11/33; B60K7/00; B60K11/02; H02M7/48
Foreign References:
| JP2019119360A | 2019-07-22 | |||
| JP2006246678A | 2006-09-14 | |||
| JP2005253184A | 2005-09-15 |
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
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