Title:
ROTOR CORE, ROTOR, ROTATING ELECTRICAL MACHINE, AND ELECTRIC AUXILIARY SYSTEM FOR AUTOMOBILES
Document Type and Number:
WIPO Patent Application WO/2019/064885
Kind Code:
A1
Abstract:
The purpose of the present invention is to sufficiently reduce torque ripples in a rotating electrical machine. At least two of a plurality of stacked sheets in this rotor core are provided with: magnetic pole parts 220 provided with base parts 230 formed further towards the outer circumferential side than accommodation spaces 212; and bridge parts 242 which are connected to the magnetic pole parts 220. The plurality of magnetic pole parts 220 are provided in the circumferential direction. First spaces 240 are formed between the base parts 230 of pairs of the magnetic pole parts 220 which are adjacent to each other in the circumferential direction. Q-axis outer circumference parts 244, which are positioned halfway between the pairs of the magnetic pole parts 220 that are adjacent to each other in the circumferential direction, and which are disposed next to the first spaces 240, are provided further towards the inner circumferential side than the base parts 230. The base parts 230 are provided with: side surface parts 241 which are disposed next to the first spaces 240; and protruding parts 222 which are provided further towards the outer circumferential side than the side surface parts 241, and which protrude in the circumferential direction with respect to the side surface parts 241. The bridge parts 242 are disposed further towards the inner circumferential side than the side surface parts 241.
Inventors:
TAGO KAZUTAMI (JP)
KANAZAWA HIROSHI (JP)
NAKAYAMA KENJI (JP)
TSUJI YUJI (JP)
CHIKAOKA TAKAYUKI (JP)
KANAZAWA HIROSHI (JP)
NAKAYAMA KENJI (JP)
TSUJI YUJI (JP)
CHIKAOKA TAKAYUKI (JP)
Application Number:
PCT/JP2018/028381
Publication Date:
April 04, 2019
Filing Date:
July 30, 2018
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H02K1/27
Foreign References:
| JP2002136011A | 2002-05-10 | |||
| JP2016178863A | 2016-10-06 | |||
| JP2007295708A | 2007-11-08 | |||
| CN104917349A | 2015-09-16 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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