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Title:
ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2018/135375
Kind Code:
A1
Abstract:
Provided is an electric motor with which it is possible to suppress an imbalance in electromagnetic force even when an abnormality occurs in a portion of a plurality of electric power systems. This electric motor (1) can be connected to a plurality of electric power systems (D1, D2), and is provided with: a stator (8) having a plurality of excitation poles (12) formed in the circumference direction, having coils of three phases or greater (U1, V1, W1, (U2, V2, W2)) that respectively flow current of three phases or greater of the electric power system for each of the plurality of electric power systems (D1, D2), and for which each coil is formed respectively on the plurality of excitation poles (12); and a rotor (9) that is rotatable relative to the stator (8). The coils (U1, V1, W1, U2, V2, W2) of the stator (8) are placed so that circumferentially adjacent coils have mutually different phases, and are mutually different electric power systems.

Inventors:
MASUDA, Yui (1578 Higashikaizuka, Iwata-sh, Shizuoka 10, 〒4388510, JP)
Application Number:
JP2018/000525
Publication Date:
July 26, 2018
Filing Date:
January 11, 2018
Export Citation:
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Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
International Classes:
H02K3/28; B60T13/74
Domestic Patent References:
WO2015141796A12015-09-24
Foreign References:
JP2010115086A2010-05-20
JP2016111921A2016-06-20
JP2013121224A2013-06-17
JP2017127170A2017-07-20
JP2003247576A2003-09-05
JP2004201364A2004-07-15
JP2015039256A2015-02-26
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (Higobashi Nittai Bldg, 10-2 Edobori 1-chome, Nishi-ku, Osaka-sh, Osaka 02, 〒5500002, JP)
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