Title:
ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2014/083947
Kind Code:
A1
Abstract:
This electric motor comprises: a stator (3) formed by coupling a plurality of divided cores (61) each having one tooth portion (64); a small coil (81) formed by winding a winding wire (12) around each tooth portion (64) and having a three-phase structure; and three phase coils formed in such a way that ends of the small coils (81) adjacent in a circumferential direction are connected to or continuously joined to each other and the small coils (81) are connected in series to form a small coil group and further two of the small coil groups are electrically connected in parallel. If the number of the small coils (81) forming the small coil group and connected in series is denoted by TN and the number of the divided cores (61) is denoted by CN, TN and CN are set so as to satisfy the relationship CN = 6 × TN. One end of a harness (50) is connected to one end of each of the phase coils, which are connected in a delta configuration, and the other end of the harness (50) is led out to the outside of the stator.
Inventors:
MIYAKI ATSUSHI (JP)
YAMAMOTO TSUTOMU (JP)
SATO MASANAO (JP)
TANABE TAKUTO (JP)
YAMAMOTO TSUTOMU (JP)
SATO MASANAO (JP)
TANABE TAKUTO (JP)
Application Number:
PCT/JP2013/077512
Publication Date:
June 05, 2014
Filing Date:
October 09, 2013
Export Citation:
Assignee:
MITSUBA CORP (JP)
International Classes:
H02K3/50; H02K1/18; H02K3/18; H02K5/22
Domestic Patent References:
| WO2009060600A1 | 2009-05-14 |
Foreign References:
| JP2009148020A | 2009-07-02 | |||
| JP2009100616A | 2009-05-07 | |||
| JP2002369430A | 2002-12-20 | |||
| JP2010233327A | 2010-10-14 |
Other References:
See also references of EP 2928048A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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