ROTOR AND MANUFACTURING METHOD THEREFOR

PROBLEM TO BE SOLVED: To provide a reliable rotor, together with its manufacturing method, in which no peeling or damage to a magnet piece occurs. SOLUTION: The rotor 10 comprises a plurality of magnet pieces 20 arrayed in circumferential direction on an outer peripheral surface of rotor shafts 12 a...

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Bibliographic Details
Main Authors OTSUKA TATSUYA, MORIMOTO HITOSHI
Format Patent
LanguageEnglish
Published 19.09.2003
Edition7
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Summary:PROBLEM TO BE SOLVED: To provide a reliable rotor, together with its manufacturing method, in which no peeling or damage to a magnet piece occurs. SOLUTION: The rotor 10 comprises a plurality of magnet pieces 20 arrayed in circumferential direction on an outer peripheral surface of rotor shafts 12 and 12 formed from a magnet body provided with the outer peripheral surface comprising a curved surface, and an adhesive layer 14 which secures the plurality of the magnet pieces 20 on the outer peripheral surface. The magnet piece 20 comprises a film 24 covering at least a part of the surface of R-Fe-B sintered magnet bodies 22 and 22. The sintered magnet body 22 has Young's modulus of 140-180×109N/m2. The film 24 has Young's modulus of 20-120×109N/m2, with thickness of 5-30 μm. The adhesive layer 14 has thickness of 20-120 μm and is formed between the film 24 and the outer peripheral surface. COPYRIGHT: (C)2003,JPO
Bibliography:Application Number: JP20020065330