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Patent Searching and Data


Title:
ROTATING ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2012/057069
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a low-noise, high-power, high-efficiency, and low-cost rotating electric machine which reduces and balances an inductance of each phase even in the case where a stator in which stator windings having different phases are disposed in a slot of a stator iron core. The present invention has the structure in which the number of slots of every pole and every phase is two or more, stator windings (7), which are configured with short pitches having six-phase windings of different electrical angles, are disposed by being divided into at least two for each phase in the slot so as to balance the inductance, and the stator windings (7) of at least two phases having different electrical angles are connected in series. With this structure, the number of rectifying elements used such as diodes (201, 202) and the like is reduced, and thus the reduction in number of parts and assembly man-hours cuts the cost.

Inventors:
ISHIKAWA TOSHIO (JP)
HONMA MASAHIKO (JP)
IZUMI MITSUAKI (JP)
KIMURA YASUHIKO (JP)
Application Number:
PCT/JP2011/074416
Publication Date:
May 03, 2012
Filing Date:
October 24, 2011
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
ISHIKAWA TOSHIO (JP)
HONMA MASAHIKO (JP)
IZUMI MITSUAKI (JP)
KIMURA YASUHIKO (JP)
International Classes:
H02K3/28
Domestic Patent References:
WO2011089749A12011-07-28
Foreign References:
JP2009165318A2009-07-23
JP2009072034A2009-04-02
JP2000232745A2000-08-22
JP2007097247A2007-04-12
JP2007143360A2007-06-07
JP2009247196A2009-10-22
JP2010241075A2010-10-27
Attorney, Agent or Firm:
HIRAKI Yusuke et al. (JP)
Yusuke Hiraki (JP)
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Claims: