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Title:
FITTING TOOL DOUBLING AS MAGNET IC POLE OF "LEFT-HANDED-THREAD WINDING/GAP/RIGHT-HANDED-THREAD WINDING" TOROIDAL CORE, AND COOLING PIPE
Document Type and Number:
WIPO Patent Application WO/2014/087890
Kind Code:
A1
Abstract:
In configuring a toroidal core used for a rotary electric machine, a wound iron core is easier to manufacture and less expensive than a laminated iron core made by pasting cut-out members together. However, use of the wound iron core in a toroidal core has a drawback in that the configuration of the sharp angles and shaft-mounting locations for attachment is more difficult than with a laminate d iron core, making it difficult to attach the wound iron core to a shroud or a rotary duct. Among toroidal cores composed of the wound iron core, a "left-handed-thread winding/gap/right-handed-thread winding" toroidal core has a gap portion and the refore permits an aggregate of electromagnetic steel sheets or a fitting tool configured from at least one of a soft magnetic ceramic, a soft magnetic sintered metal, and a soft pressed powder magnetic materi al to be put into this gap portion, whereby the toroidal core can be easily attached to a shroud or a rotary duct structure, an excellent magnetic circuit can be formed, and an opening for a cooling pipe to pass through can be created in the gate section of the fitting tool.

Inventors:
IKEDA KAIDOU (JP)
Application Number:
PCT/JP2013/081849
Publication Date:
June 12, 2014
Filing Date:
November 27, 2013
Export Citation:
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Assignee:
IKEDA KAIDOU (JP)
International Classes:
H02K1/06
Foreign References:
JPH099533A1997-01-10
JP2000023395A2000-01-21
JPH11356017A1999-12-24
JP2006238623A2006-09-07
JP2012222929A2012-11-12
JP2001037133A2001-02-09
JP3595988B12004-12-02
JP4015175B12007-11-28
JP4053584B12008-02-27
JP2009196227A2009-09-03
JPS51111001U1976-09-08
JP2011217434A2011-10-27
JP2004215496A2004-07-29
JPS5315502A1978-02-13
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