ロータ、永久磁石同期モータ、永久磁石同期モータの製造方法、および空気調和機

Title:

ロータ、永久磁石同期モータ、永久磁石同期モータの製造方法、および空気調和機

Document Type and Number:

Japanese Patent JP6448810

Kind Code:

B2

Abstract:

A permanent-magnet synchronous motor includes: an annular stator core; a cylindrical rotor disposed inside the stator core, and having a first end face in an axial direction of the stator core and a second end face in the axial direction; a disk-shaped sensor magnet having a plurality of magnetic poles disposed circumferentially, and having a third end face and a fourth end face; and a magnetic sensor disposed so as to be opposed to the fourth end face in the axial direction, and detecting a rotating position of the sensor magnet. When a first thickness means the axial thickness at the center of each of the magnetic poles and a second thickness means the axial thickness of an inter-magnetic-pole portion between adjacent magnetic poles of the magnetic poles, the second thickness is greater than the first thickness.

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Inventors:

Takaya Shimokawa
Kazuhiko Baba
Koji Yabe
Tomoaki Oikawa
Mineo Yamamoto
Hiroyuki Ishii
Oya Junichiro
Aso Hiroki
Urabe Yuto

Application Number:

JP2017540443A

Publication Date:

January 09, 2019

Filing Date:

September 18, 2015

Export Citation:

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Assignee:

Mitsubishi Electric Corporation

International Classes:

G01D5/245; H02K11/215; H02K29/08

Domestic Patent References:

JP3748037B2
JP6344675U
JP2012205421A

Foreign References:

DE102004014986A1
US20130020916

Attorney, Agent or Firm:

Jun Takamura

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