Brushless direct current motor with inverted magnet clip

Details Brushless direct current motor with inverted magnet clip Brushless direct current motor with inverted magnet clip

1984-10-11

1986-04-29

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310 46, 310 68B, 310 89, 310 90, 360 97, 361212, 29598, H02K 700

Patent

active

045859639

ABSTRACT:
A brushless direct current motor with the rotating magnet cup permanently attached to the spindle hub. After attachment, the combination spindle hub and magnet cup are affixed to the shaft and the resulting subassembly is dynamically balanced. The motor using this balanced subassembly can be assembled with no balancing required after assembly. The motor can also be disassembled for repair and reassembled without disturbing the dynamic balance. The motor includes an air seal at one end thereof and is especially useful for disk drive applications.

REFERENCES:
patent: 2047838 (1936-07-01), Smith
patent: 2256118 (1941-09-01), Kyropoulos
patent: 3458740 (1966-11-01), Kaneko
patent: 3482125 (1969-12-01), Fleckenstein
patent: 3587074 (1971-06-01), Angle
patent: 3596121 (1971-07-01), Chang
patent: 4097754 (1978-06-01), Farr
patent: 4117359 (1978-09-01), Wehde
patent: 4217508 (1980-08-01), Uzuka

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