ROTATING ELECTRICAL MACHINE AND METHOD FOR MANUFACTURING SAME

This rotating electrical machine includes: a rotor (11) formed from stacked steel sheets and fixed to a rotary shaft; a plurality of magnets (12) arranged on the outer circumference of the rotor (11) along the circumferential direction; and the same number of holders (13) as the magnets (12), the ho...

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Bibliographic Details
Main Authors SUZUKI, Junya, OKAZAKI, Masafumi, NISHIKAWA, Hideya, YABE, Mitoru
Format Patent
LanguageEnglish
French
German
Published 07.06.2023
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Summary:This rotating electrical machine includes: a rotor (11) formed from stacked steel sheets and fixed to a rotary shaft; a plurality of magnets (12) arranged on the outer circumference of the rotor (11) along the circumferential direction; and the same number of holders (13) as the magnets (12), the holders (13) being arranged between the magnets (12). The holder (13) is press-fitted and fixed into the rotor (11) by a press-fit portion (13a) extending in the radial direction of the rotary shaft. One circumferential-direction side of the magnet (12) is positioned by the rotor (11), and another side is pressed in the circumferential direction by the holder (13). Both circumferential-direction ends of the magnet (12) are pressed in the radial direction by the holders (13). Such a configuration provides a rotating electrical machine that enables a magnet to be accurately fixed to a rotor through simple work, at low cost.
Bibliography:Application Number: EP20200948697