Search International and National Patent Collections

1. (WO2018138864) STATOR, ELECTRIC MOTOR, COMPRESSOR, AND REFRIGERATING/AIR CONDITIONING DEVICE

Pub. No.:    WO/2018/138864    International Application No.:    PCT/JP2017/002893
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Sat Jan 28 00:59:59 CET 2017
IPC: H02K 1/02
F04B 39/00
H02K 1/27
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: BABA Kazuhiko
馬場 和彦
Title: STATOR, ELECTRIC MOTOR, COMPRESSOR, AND REFRIGERATING/AIR CONDITIONING DEVICE
Abstract:
A stator (100) is provided with a first iron core (10A) configured from an electromagnetic steel sheet and a second iron core (10B) configured from an amorphous metal or a nanocrystalline metal. The first iron core (10A) comprises: a first yoke (12A) extending in a circumferential direction having an axis (C1) at the center thereof; and first teeth (11A) and second teeth (11A) extending toward the axis (C1) from the first yoke (12A). The second iron core (10B) comprises a second yoke (12B) adjacent to the first yoke (12B) in the direction of the axis (C1) and third teeth (11B) and fourth teeth (11B) adjacent to the first teeth (11A) and the second teeth (11A) in the direction of the axis (C1). The first iron core (10A) is divided by a division surface formed between the first teeth (11A) and the second teeth (11A) in the first yoke (12A), and said first iron core (10A) is formed integrally further circumferentially outward than the division surface. The distance (r2) from the axis (C1) to the outer circumferential surface (16B) of the second yoke (12B) is smaller than the distance from the axis (C1) to the outer circumferential surface (16A) of the first yoke (12A).