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Patent Searching and Data


Title:
STATOR, ELECTRIC MOTOR, COMPRESSOR, REFRIGERATION AIR-CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2017/208293
Kind Code:
A1
Abstract:
This stator (100) is provided with a first core (10) having multiple laminated non-grain-oriented electrical steel sheets and having a through-hole (11d) passing through the multiple non-grain-oriented electrical steel sheets in the axial direction of the stator, and a second core (20) arranged inside of the insertion hole (11d) and comprising multiple laminated grain-oriented electrical steel sheets, wherein the first core (10) has a thin wall (11e) which is adjacent to the second core (20), and, defining ta as the thickness of the thin wall (11e) when viewing the first core (10) in the axial direction and tm as the thickness of one of the multiple non-grain-oriented electrical steel sheets, the conditional expression 0.5tm ≦ ta ≦ 2tm is satisfied.

Inventors:
BABA Kazuhiko (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
NIGO Masahiro (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2016/065882
Publication Date:
December 07, 2017
Filing Date:
May 30, 2016
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H02K1/18; H02K1/02
Attorney, Agent or Firm:
MAEDA Minoru et al. (MAEDA & YAMAGATA, Koda Bldg. 4F 16-2, Yoyogi 2-chome, Shibuya-k, Tokyo 53, 〒1510053, JP)
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