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Patent Searching and Data


Title:
DYNAMO-ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2014/155914
Kind Code:
A1
Abstract:
A dynamo-electric machine (11) is provided with: a stator (12) which has a circular cylindrical inner hole; and a rotor (13) which has a rotating shaft (17) concentric with the inner hole of the stator (12) and which also has an outer peripheral surface facing the inner peripheral surface of the inner hole with a predetermined gap therebetween. A rotor core (18) which is provided around the rotating shaft (17) is divided in the axial direction of the rotor core (18) into rotor cores. Air passage holes (19) are formed in the divided rotor cores (18) so as to be arranged around the rotating shaft (17) and so as to penetrate through the divided rotor cores (18) in the axial direction thereof. Spacers (22) are provided between the end surfaces of the divided rotor cores, and a duct (23) which leads from the air passage holes (19) to the gap between the inner peripheral surface of the inner hole of the stator and the outer peripheral surface of the rotor is formed between the end surfaces.

Inventors:
NAKAJI HIROTAKE (JP)
TSUBOI YUICHI (JP)
KOMETANI HARUYUKI (JP)
SASAI TAKUMA (JP)
KISE KOJI (JP)
Application Number:
PCT/JP2014/000307
Publication Date:
October 02, 2014
Filing Date:
January 22, 2014
Export Citation:
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Assignee:
TOSHIBA MITSUBISHI ELEC INC (JP)
International Classes:
H02K1/32
Foreign References:
JP2009303343A2009-12-24
JP2008289335A2008-11-27
JPS6390949U1988-06-13
Attorney, Agent or Firm:
AMAGI INTERNATIONAL PATENT LAW OFFICE (JP)
Patent business corporation Amagi international patent firm (JP)
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