METHOD FOR MANUFACTURING ROTOR, ROTOR, AND IPM MOTOR HAVING SAID ROTOR

WIPO Patent Application WO/2024/070043

A1

[Solution] A method for manufacturing a rotor in which a magnet is held in a rotor core. This method for manufacturing a rotor includes: a magnet insertion step for inserting the magnet inside a magnet insertion hole in the rotor core; a rotor core holding step for using a plate, which has a pin insertion hole into which a swage pin can be inserted, to cover, from a lamination direction, at least a portion of an end face in the lamination direction of the rotor core in which the magnet has been inserted, and using the plate to press the rotor core in the lamination direction; and a swage step for using the swage pin, which has been inserted into the pin insertion hole, to swage the rotor core in the lamination direction so as to hold the magnet inside the magnet insertion hole. In the rotor core holding step, the rotor core is held in a state in which a relief portion into which the plastically-deformed steel plate enters is provided between the plate and a swage surface contacted by the swage pin. In the swage step, the rotor core in the state of being held by the plate is swaged in the lamination direction by the swage pin.

TANAKA YOSUKE (JP)
HONDA TAKESHI (JP)
MUTO HIROFUMI (JP)
TSUJI HIDEKI (JP)
DANJO YUYA (JP)

PCT/JP2023/019007

April 04, 2024

May 22, 2023

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NIDEC CORP (JP)

H02K15/03; H02K1/276

JP2002112481A	2002-04-12
JP2022129440A	2022-09-06
JPS5992555U	1984-06-23
JP2016220514A	2016-12-22
JPH0946946A	1997-02-14
JP2018182875A	2018-11-15

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