ROTARY ELECTRIC MACHINE

WIPO Patent Application WO/2023/053599

A1

One aspect of the magnetic pole rotary electric machine according to the present invention comprises: a rotor which has a shaft extending in the axial direction about the center axis and a plurality of rotor magnets arranged along the circumferential direction and which rotates about the center axis; a stator having a coil and surrounding the rotor from the outer side in the radial direction; a housing which supports the stator; a pair of magnetic bearings positioned on one side and the other side of the rotor magnets, respectively, in the axial direction; and a position adjustment member held by the housing. The stator rotatably holds the rotor in the axial direction by a field current flowing through the coil. Each of the magnetic bearings has a cylindrical inner-side magnet fixed to the rotor and a cylindrical outer-side magnet fixed to the housing and surrounding the inner-side magnet, and rotatably holds the rotor in the radial direction. The rotor has a stepped surface facing the axial direction. The position adjustment member has an opposing surface facing the stepped surface and can move in the axial direction with respect to the housing.

JP2001056026	MAGNETIC BEARING SYSTEM
WO/2021/065363	TURBO COMPRESSOR

SASAKI RYOMA (JP)
HIROSE KENTARO (JP)
MAEDA SHIGERU (JP)

PCT/JP2022/024247

April 06, 2023

June 17, 2022

Click for automatic bibliography generation  

NIDEC CORP (JP)

H02K7/09; F16C32/04

JP2015171165A	2015-09-28
JP2010115101A	2010-05-20
JP2009002516A	2009-01-08
JPS5841035U	1983-03-18
JPH08298745A	1996-11-12
US20140232226A1	2014-08-21

View/Download PDF      PDF Help

Previous Patent: THREE-PHASE SIGNAL GENERATING DEVICE, AND THREE-PHASE SIGNAL GENERATING METHOD

Next Patent: MOTOR CONTROL DEVICE