Title:
回転電機
Document Type and Number:
Japanese Patent JP6765983
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an outer rotor-type rotary electric machine capable of obtaining high torque during a high load, while reducing a counter electromotive voltage and an iron loss during no-load or a low load.SOLUTION: A rotary electric machine 10 includes a stator 14, an annular outer rotor 18 disposed on an outer periphery of the stator 14, and in which multiple core pieces 38 and multiple outer magnets 40 are arranged side-by-side alternately in a circumferential direction, and a short circuit member (first member 42) being disposed at an outside in a radial direction of the outer magnets 40, and magnetically short-circuiting two core pieces 38 located at both sides of each outer magnet 40 in the circumferential direction. Each outer magnet 40 is magnetized in the circumferential direction, and in an opposite direction to the circumferential direction to the other outer magnet 40 adjacent in the circumferential direction, and the short circuit member is composed of a soft magnetic material having a maximum permeability higher than that of the core pieces 38, and saturation magnetization smaller than that of the core pieces 38.SELECTED DRAWING: Figure 3
Inventors:
Shinya Urata
Masashi Namba
Hideo Nakai
Hiroyuki Hattori
Shinji Wakamatsu
Masashi Namba
Hideo Nakai
Hiroyuki Hattori
Shinji Wakamatsu
Application Number:
JP2017021946A
Publication Date:
October 07, 2020
Filing Date:
February 09, 2017
Export Citation:
Assignee:
Toyota Central R & D Labs.
TOYOTA JIDOSHA KABUSHIKI KAISHA
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H02K1/22; H02K1/27; H02K21/14
Domestic Patent References:
| JP2016093052A | ||||
| JP2011182622A | ||||
| JP2006115684A | ||||
| JP2010273425A |
Foreign References:
| US20160130739 |
Attorney, Agent or Firm:
Patent Corporation yki International Patent Office