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Patent Searching and Data


Title:
MAGNETIZING METHOD, ROTOR, ELECTRIC MOTOR, AND SCROLL COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2017/130309
Kind Code:
A1
Abstract:
This magnetizing method comprises: a step in which a rotor (20) is prepared, said rotor (20) being provided with a rotor iron core (21) that has magnet insertion holes (23) and being provided with permanent magnets (30) that are positioned in the magnet insertion holes (23); a step in which the rotor (20) is positioned so as to face teeth (12) around which a winding (8) is wound; a step in which the rotor (20) is made to rotate a first angle θ1 in a first rotational direction from a rotational position and a current is sent through the winding (8), said rotational position being a position in which the centers of the insertion holes (23) in a circumferential direction of the rotor iron core (21) face middle sections between both ends of the winding (8) in the circumferential direction; and a step in which the rotor (20) is made to rotate a second angle θ2 in a second rotational direction and a current is sent through the winding (8), said second rotational direction being the opposite direction from the rotational position as the first rotational direction. The second angle θ2 is smaller than the first angle θ1.

Inventors:
YABE KOJI (JP)
FUJISUE YOSHIKAZU (JP)
KUMAGAI KAZUYA (JP)
TSUTSUMI TAKAHIRO (JP)
Application Number:
PCT/JP2016/052269
Publication Date:
August 03, 2017
Filing Date:
January 27, 2016
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04B39/00; H02K15/03; H02K1/27
Domestic Patent References:
WO2015140970A12015-09-24
Foreign References:
JPH11266570A1999-09-28
JP2012172622A2012-09-10
JP2013219352A2013-10-24
JP2015116025A2015-06-22
JP2012217278A2012-11-08
US20060056996A12006-03-16
EP2264859A12010-12-22
Attorney, Agent or Firm:
MAEDA Minoru et al. (JP)
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