Title:
ROTATING ELECTRIC MACHINE AND DUMP TRUCK ROTATING ELECTRIC MACHINE SYSTEM USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/180922
Kind Code:
A1
Abstract:
This rotating electric machine is for reducing wear and deformation caused by the mechanical factors of a brush of an excitation-type rotating electric machine due to brush-type power supply, and for ensuring long-term soundness of the brush. The rotating electric machine comprises: a frame; first and second excitation-type rotating electric machines that are disposed in the frame, and that have different excitation currents; first and second brushes and slip rings that supply an electric current to the respective first and second excitation-type rotating electric machines; a shaft that is fastened to a rotor of each of the first and second excitation-type rotating electric machines, and that rotates together with the rotors; and a bearing that rotatably supports the shaft. The rotating electric machine is characterized in that: the first and second brushes are disposed between the bearing and the first excitation-type rotating electric machine; and the brush having the higher excitation current among the first and second brushes is disposed on the bearing side.
Inventors:
KORI DAISUKE (JP)
SUGIMOTO SHINJI (JP)
FUJII KATSUHIKO (JP)
TSUCHITANI OSAMU (JP)
SATO MISATO (JP)
SUGIMOTO SHINJI (JP)
FUJII KATSUHIKO (JP)
TSUCHITANI OSAMU (JP)
SATO MISATO (JP)
Application Number:
PCT/JP2021/038219
Publication Date:
September 01, 2022
Filing Date:
October 15, 2021
Export Citation:
Assignee:
HITACHI INDUSTRIAL PRODUCTS LTD (JP)
International Classes:
H02K13/00; H02K16/00
Foreign References:
| JP2003134764A | 2003-05-09 | |||
| JP2000116082A | 2000-04-21 | |||
| JPH05207712A | 1993-08-13 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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