Rotor, magnetizing method, motor, and scroll compressor
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United States of America Patent
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Jun 30, 2020
Grant Date -
Feb 14, 2019
app pub date -
Jan 27, 2016
filing date -
Jan 27, 2016
priority date (Note) -
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Abstract
A rotor includes a rotor core having a magnet insertion hole and a permanent magnet provided in the magnet insertion hole. The rotor core has a slit on an outer side of the magnet insertion hole in a radial direction of the rotor core. The permanent magnet is magnetized by placing the rotor so as to face a tooth around which a winding is wound, rotating the rotor in a first rotating direction from a rotational position where a center of the magnet insertion hole in a circumferential direction of the rotor core faces a middle portion between both ends of the winding in the circumferential direction and supplying electric current to the winding, and rotating the rotor in a second rotating direction opposite to the first rotating direction from the rotational position and supplying electric current to the winding.
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