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Title:
ROTARY ELECTRIC MACHINE AND MOTOR VEHICLE PROVIDED THEREWITH
Document Type and Number:
WIPO Patent Application WO/2019/077868
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a rotary electric machine in which it is possible to reduce the leakage of magnetic flux from a bridge. In the present invention, a core region A disposed on the inner periphery of a hole 40 and a core region B disposed on the outer periphery of the hole 40 are mechanically linked by at least two bridges, a first bridge 51 and a second bridge 52, which are separated from the magnetic pole center in the peripheral direction. If L1 is defined as the distance between the connection areas 102 where the first bridge 51 and the second bridge 52 connect to the core region A, and L2 is defined as the distance between the connection areas 101 where the first bridge 51 and the second bridge 52 connect to the core region B, the relation L2 < L1 is satisfied; if θ1 is defined as the angle facing the magnetic pole center C, formed between the first bridge 51 and the inner peripheral surface of the core region B, and θ2 is defined as the angle formed between the second bridge 52 and the inner peripheral surface of the core region B, the relations θ1 > 90° and θ2 > 90° are satisfied; and if L3 is defined as the distance between the circumferential ends of the core region B, the relation L2 < L3 is satisfied.

Inventors:
ITO MAKOTO (JP)
TAKAHASHI AKESHI (JP)
SUGIMOTO SHINJI (JP)
TAMIYA SHUICHI (JP)
Application Number:
PCT/JP2018/031006
Publication Date:
April 25, 2019
Filing Date:
August 22, 2018
Export Citation:
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Assignee:
HITACHI LTD (JP)
International Classes:
H02K1/27; H02K1/22; H02K21/14
Foreign References:
JP2014233135A2014-12-11
JP2013126330A2013-06-24
JP2012080718A2012-04-19
JPH09163648A1997-06-20
JP2013236418A2013-11-21
JP2011097783A2011-05-12
JP2014057392A2014-03-27
Other References:
See also references of EP 3700062A4
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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