Title:
STATOR, MOTOR, COMPRESSOR, AND REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/113346
Kind Code:
A1
Abstract:
The stator comprises: a yoke that extends in a circumferential direction about an axis; teeth that extend, from the yoke, inward in the radial direction about the axis; a stator core that has slots adjacent to the teeth in the circumferential direction; insulators provided to the inner surfaces of the slots; and winding wires wound around the teeth with the insulators therebetween, and accommodated in the slots. The winding wires each have a conductor made of aluminum. The teeth have lateral ends which are ends in the circumferential direction, and the yoke has an inner circumferential part which is an inner end in the radial direction. A shortest distance D1 between a lateral end of a tooth and the winding wires satisfies 0.023×10-3 [m]≤D1≤0.181×10-3 [m]. A shortest distance D2 between the inner circumferential part of the yoke and the winding wires satisfies 0.023×10-3 [m]≤D2≤0.181×10-3 [m].
Inventors:
TSUKAMOTO EMI (JP)
NIGO MASAHIRO (JP)
NIGO MASAHIRO (JP)
Application Number:
PCT/JP2020/044518
Publication Date:
June 02, 2022
Filing Date:
November 30, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K3/12; H02K1/14; H02K1/16
Domestic Patent References:
| WO2019077716A1 | 2019-04-25 | |||
| WO2019186615A1 | 2019-10-03 |
Foreign References:
| JP2012023818A | 2012-02-02 | |||
| JP2017034819A | 2017-02-09 | |||
| JP2015107029A | 2015-06-08 | |||
| JP2018085836A | 2018-05-31 |
Attorney, Agent or Firm:
YAMAGATA Yoichi et al. (JP)
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