Title:
STATOR, ELECTRIC MOTOR, COMPRESSOR AND AIR CONDITIONING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/021702
Kind Code:
A1
Abstract:
The stator according to the present invention comprises: a stator core having a yoke that extends in a circumferential direction centered upon a central shaft, teeth that extend from the yoke toward the central shaft, and slots adjacent to the teeth in the circumferential direction; and a coil that is wound around the teeth and is accommodated in the slots. The stator core has a first core section positioned on an end in the axial direction of the central shaft, and a second core section positioned in the center in the axial direction. The area of the slots in the first core section is greater than the area of the slots in the second core section. An insulator positioned between the teeth and the coil is provided in the first core section. The stator core has a hole that penetrates the first core section and reaches the second core section. The insulator comprises a projection that is inserted, in the hole, up to the position of the second core section.
Inventors:
HIROSAWA YUJI (JP)
NIGO MASAHIRO (JP)
NIGO MASAHIRO (JP)
Application Number:
PCT/JP2018/028231
Publication Date:
January 30, 2020
Filing Date:
July 27, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K1/16; H02K3/34
Foreign References:
| JP2017103850A | 2017-06-08 | |||
| JP2009038947A | 2009-02-19 | |||
| JPH0851746A | 1996-02-20 | |||
| JPH07288941A | 1995-10-31 | |||
| JP2007202326A | 2007-08-09 | |||
| JP2000224793A | 2000-08-11 | |||
| JP2016073138A | 2016-05-09 | |||
| JP2016208790A | 2016-12-08 |
Attorney, Agent or Firm:
YAMAGATA Yoichi et al. (JP)
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