Title:
STATOR, ELECTRIC MOTOR, COMPRESSOR, REFRIGERATION CYCLE DEVICE, AND STATOR MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/187880
Kind Code:
A1
Abstract:
A stator, according to the present invention, comprises: an outer periphery extending in the peripheral direction about a center axis; and a stator core which includes a plurality of slots arrayed in the peripheral direction and in which the outer periphery thereof is fixed to the inner side of a shell having a cylindrical shape. At the outer periphery of the stator core, a first notch portion, two second notch portions, and two third notch portions are formed. The two second notch portions are formed on both sides of the first notch portion in the peripheral direction, and the center of the first notch portion and a center of each of the second notch portions in the peripheral direction form a 90-degree angle relative to the center axis. The two third notch portions are formed on both sides of a line passing through the center axis and the center of the first notch portion. A first contact portion in contact with the shell is formed between the two third notch portions. When D1 is defined as the shortest distance to the slot, from among the plurality of slots, closest to the first contact portion, and D2 is defined as the shortest distance to the slot, from among the plurality of slots, closest to the third notch portion, 1.00 ≤ D1/D2 ≤ 1.60 is satisfied.
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Inventors:
MASUKO TOMOKI (JP)
Application Number:
PCT/JP2022/014913
Publication Date:
October 05, 2023
Filing Date:
March 28, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K1/12; H02K1/16; H02K15/02
Domestic Patent References:
| WO2019073509A1 | 2019-04-18 |
Foreign References:
| JP4717089B2 | 2011-07-06 | |||
| JPH04285444A | 1992-10-09 | |||
| JP2009247079A | 2009-10-22 | |||
| JPH11125183A | 1999-05-11 |
Attorney, Agent or Firm:
YAMAGATA Yoichi et al. (JP)
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