Compact motor

Details Compact motor Compact motor

1998-09-30

2000-06-13

Enad, Elvin

Electrical generator or motor structure

Dynamoelectric

Rotary

310 89, 310 42, 310254, 310 67R, H02K 118

Patent

active

060753013

ABSTRACT:
A pair of C-shaped magnets are fitted to a resin holder and inserted as a unit into a cup-shaped motor case. The resin holder has a diameter that is slightly greater than the inside diameter of the motor case, but includes resilient elements that are compressible during insertion of the resin holder and the magnets. After insertion the resilient elements urge the resin holder and the magnets into frictional contact with the inside of the motor case, thereby retaining the magnets in place without the need for adhesive. A U-shaped groove in the resin holder is engaged by a positioning projection in the motor case to establish the rotational positioning of the resin holder and thereby the rotational positioning of the C-shaped magnets. A rotor is rotationally fixed in the motor case on a shaft which rotates in the motor case at one end and in a bracket covering the open end of the motor case at the other end.

REFERENCES:
patent: 3828212 (1974-08-01), Harkness et al.
patent: 4071794 (1978-01-01), Schoen
patent: 4219752 (1980-08-01), Katou
patent: 4665333 (1987-05-01), Heim et al.
patent: 4748358 (1988-05-01), Ruehle et al.
patent: 4851729 (1989-07-01), Baines
patent: 5105114 (1992-04-01), Sickle et al.
patent: 5391063 (1995-02-01), Hantle et al.
patent: 5675204 (1997-10-01), Kusumoto et al.

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