Title:
ROTATING ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2020/230372
Kind Code:
A1
Abstract:
Provided is a rotating electric machine in which eddy current loss can be significantly reduced that is caused by a high-frequency magnetic flux in a coil wound around a tooth portion of a stator core in a concentrated manner. A synchronous motor 100 is equipped with a stator 120 having: a stator core 122 provided with a plurality of tooth portions 122b in the circumferential direction, said tooth portions 122b projecting on the inner circumference of an annular yoke portion 122a toward the inside in the radial direction; and coils 123 respectively wound around the tooth portions 122b of the stator core 122 in a concentrated manner. The synchronous motor 100 is provided with a shield body 124 disposed on the further inner side of the tooth portions 122b of the stator core 122 than the coils 123 in the radial direction of the stator core 122 and comprising a ferromagnetic material for shielding a high-frequency magnetic flux.
Inventors:
SUGIURA YOSHINORI (JP)
Application Number:
PCT/JP2020/003088
Publication Date:
November 19, 2020
Filing Date:
January 29, 2020
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD (JP)
International Classes:
H02K1/00; H02K1/06; H02K1/14; H02K3/18
Foreign References:
| JP2007202292A | 2007-08-09 | |||
| JPH08214484A | 1996-08-20 | |||
| JP2011130556A | 2011-06-30 | |||
| CN103095079A | 2013-05-08 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
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