Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1987-04-03
1989-07-25
Budd, Mark O.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 40MM, 310254, H02K 2126
Patent
active
048517275
ABSTRACT:
A permanent magnet type electric motor has stoppers for restricting axial movement of field magnetic poles each composed of a permanent magnet and an auxiliary pole 13 in a cylindrical yoke thereof. The stoppers may be protrusions 17 arranged in the yoke or may be a ring member 21 resiliently fitted in the yoke. The auxiliary poles 15 are welded to an inner wall of the yoke 11 and the magnets 14 may be bonded thereto by a suitable adhesive so that enough space to receive a through-bolt is provided between adjacent ones of the field magnetic poles.
REFERENCES:
patent: 3594599 (1971-07-01), West
patent: 3772546 (1973-11-01), Means
patent: 3988623 (1976-10-01), Yamaguchi et al.
patent: 4155021 (1979-05-01), Corbach
patent: 4335323 (1982-06-01), Kebbon
patent: 4580072 (1986-04-01), Morishita
patent: 4665333 (1987-05-01), Heim
Budd Mark O.
Mitsubishi Denki & Kabushiki Kaisha
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