MULTIPLE-POLYPHASE AC DYNAMO-ELECTRIC MACHINE AND ELECTRIC POWER STEERING DEVICE

Title:

MULTIPLE-POLYPHASE AC DYNAMO-ELECTRIC MACHINE AND ELECTRIC POWER STEERING DEVICE

Document Type and Number:

WIPO Patent Application WO/2014/192130

Kind Code:

A1

Abstract:

A multiple-polyphase AC dynamo-electric machine provided with the following: an armature that has a stator core, said stator core being provided with a plurality of magnetic teeth, and multiple polyphase-winding groups wound around said teeth; and a rotor that is positioned relative to the armature with a magnetic gap interposed therebetween. The stator core has a plurality of magnetic connecting sections that connect adjacent flanges in each pole section of the aforementioned plurality of teeth. Each of said connecting sections corresponds to a slot and is provided on the inward side of said slot. Since the radial widths of the connecting sections are smaller than both the circumferential widths of the teeth and the radial widths of the flanges, voltages generated when the magnetic flux generated by current flowing through one group of windings links with the windings in another group are suppressed effectively.

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Inventors:

HIROTANI YU (JP)
TAKIZAWA YUJI (JP)
KAWASAKI SACHIKO (JP)
NAKANO MASATSUGU (JP)
UDO TOYOAKI (JP)
AKUTSU SATORU (JP)

Application Number:

PCT/JP2013/065155

Publication Date:

December 04, 2014

Filing Date:

May 31, 2013

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

H02K1/14

Foreign References:

JP2007049774A	2007-02-22
JP2005237068A	2005-09-02
JP2006211820A	2006-08-10
JPS60128852A	1985-07-09
JP2007295763A	2007-11-08
JPH07264822A	1995-10-13
JP4476202B2	2010-06-09

Other References: