Title:
ROTARY ELECTRIC MACHINE AND ELECTRIC VEHICLE PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2015/076045
Kind Code:
A1
Abstract:
Provided are a rotary electric machine that achieves high output and simultaneously enhances reluctance torque, reduces stress, and improves a power factor, and an electric vehicle provided with the rotary electric machine. Permanent magnets are disposed on q axes passing between magnetic poles of a rotor. Space is provided in the radial direction of the permanent magnets. Permanent magnets are additionally provided so as to oppose each other with d axes passing through the centers of the magnetic poles of the rotor disposed therebetween, and spaces are provided at the locations of the opposition. Further, the invention is configured such that if first imaginary lines are drawn that coincide with the boundaries of the rotor-core-inner-periphery sides of permanent magnet insertion holes disposed so as to oppose the d axis and second imaginary lines are drawn that are concentric with the inner periphery of the rotor core and come into contact with the first imaginary lines, the second imaginary line closest to the inner periphery has two or more points of contact with the first imaginary lines.
Inventors:
SAITO YASUYUKI (JP)
KANOH YUJI (JP)
ADACHI TOMOHIRO (JP)
KITAHARA MOTOO (JP)
FUKUDA TOMOHIRO (JP)
KANOH YUJI (JP)
ADACHI TOMOHIRO (JP)
KITAHARA MOTOO (JP)
FUKUDA TOMOHIRO (JP)
Application Number:
PCT/JP2014/077770
Publication Date:
May 28, 2015
Filing Date:
October 20, 2014
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H02K1/27; B60L9/18; B60L50/15; B60L50/16; H02K21/16
Foreign References:
| JP2013225997A | 2013-10-31 | |||
| JP2005198487A | 2005-07-21 | |||
| JP2009153352A | 2009-07-09 | |||
| JP2012029563A | 2012-02-09 | |||
| US4668721A | 1987-05-26 |
Other References:
See also references of EP 3073614A4
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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