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Title:
ROTARY ELECTRIC MACHINE
Document Type and Number:
Japanese Patent JP2009148093
Kind Code:
A
Abstract:

To provide a rotary electric machine having improved cooling performance while maintaining insulation properties.

The rotary electric machine has a stator 20 in which each stator coil is wound around each tooth part of a core, and a rotor arranged on the inner peripheral side of the stator 20 via a gap so as to be freely rotatably supported. The rotary electric machine is cooled by a refrigerant. Each stator coil has a coil end part protruding from the axial end part of the stator 20. A power distribution part 27 is supported by a resin-made holder and has each conductor connected to each stator coil. The power distribution part 27 is placed above the coil end parts, thereby forming a gap 28 between the end part of the stator core and the lower face of the power distribution part, which constitutes a refrigerant passage.


Inventors:
HOSHINO KATSUHIRO
NAKAYAMA KENICHI
KAJIYA NOBUYUKI
KOIZUMI TAKAYUKI
UEDA TOSHIAKI
Application Number:
JP2007000323637
Publication Date:
July 02, 2009
Filing Date:
December 14, 2007
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
H02K9/19; H02K3/46
Domestic Patent References:
JP2005295784A2005-10-20
JP2006197772A2006-07-27
Attorney, Agent or Firm:
Kasuga