Title:
Permanent magnet embedded model rotation electrical machinery
Document Type and Number:
Japanese Patent JP6174150
Kind Code:
B2
Abstract:
The present invention provides an embedded permanent magnet rotary electric machine that can suppress reductions in magnetic flux from permanent magnets, and that can also cool permanent magnets efficiently. In this embedded permanent magnet rotary electric machine, a rotor 15 includes: a rotor core 17 that is configured by laminating and integrating electromagnetic steel sheets, and that is fixed to a shaft; a plurality of permanent magnet housing apertures 20 that are disposed circumferentially so as to be respectively formed so as to pass axially through an outer circumferential side of the rotor core 17; and permanent magnets 21 that are housed in each of the magnet housing apertures 20, an adhesive is disposed only between an outside wall surface 20a that is positioned on a radially outer side of an inner wall surface of the magnet housing apertures 20 and an outside surface 21a that is positioned on a radially outer surface of the permanent magnets 21 such that the permanent magnets 21 are fixed so as to be closer to the outside wall surface 20a of the magnet housing apertures 20, and cooling flow channels 23 through which a coolant is made to flow are formed by an inside surface 21b that is positioned on a radially inner side of a surface of the permanent magnets 21 and inside wall surfaces 20b that are positioned on a radially inner side of inner wall surfaces of the magnet housing apertures 20.
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Inventors:
Masaki Horii
Masaya Inoue
Yoshiaki Kitada
Masaya Inoue
Yoshiaki Kitada
Application Number:
JP2015530569A
Publication Date:
August 02, 2017
Filing Date:
August 05, 2013
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02K1/32; H02K1/22
Domestic Patent References:
| JP2002345188A | ||||
| JP2009303293A | ||||
| JP2013013182A | ||||
| JP2001037129A | ||||
| JP2008178243A | ||||
| JP2005245085A |
Attorney, Agent or Firm:
Michiharu Soga
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
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