ROTOR MANUFACTURING METHOD OF PERMANENT MAGNET MOTOR AND CURING DEGREE PREDICTION METHOD

• Main Author: FUKUMARU KENICHIRO
• Format: Patent
• Language: English
• Published: 14.09.2006
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

PROBLEM TO BE SOLVED: To provide a rotor manufacturing method of a permanent magnet motor that can make a permanent magnet firmly adhere to a magnet storage hole formed at a rotor without causing the leakage of an adhesive to the outside, when adhesion-fixing the permanent magnet to the magnet storage hole formed at the rotor, can set a curing condition, and can shorten a manufacturing time of the rotor, and a curing degree prediction method. SOLUTION: The rotor manufacturing method comprises: an adhesive injection step that injects the adhesive into a slot formed at a rotor core; a magnet insertion step that inserts the permanent magnet into the slot; an installation step that superimposes and fixes an end plate on the rotor core and blocks the slot; an inverting preheating step that holds the rotor at a temperature higher than a normal temperature and lower than the curing start temperature of the adhesive in a state that the top and the bottom of the rotor are inverted different form a state in the adhesive injection step; an erecting preheating step that holds the rotor at a preheating temperature by returning the top and the bottom of the rotor back to the same state in the adhesive injection step; and a thermosetting step that thermally cures the adhesive in the slot by heating the rotor. COPYRIGHT: (C)2006,JPO&NCIPI