Electrical generator or motor structure – Dynamoelectric – Linear
Patent
1986-02-03
1987-04-28
Salce, Patrick R.
Electrical generator or motor structure
Dynamoelectric
Linear
310 12, 310154, 310 89, H02K 4102
Patent
active
046617299
ABSTRACT:
A voice coil motor for a moving storage media actuator has a permanent magnet assembly wherein a radially polarized magnet is formed as sectors, with like sectors of the outer housing which forms a portion of the pole piece assembly. These sectors are then mounted on the remainder of the pole piece assembly for the magnetic actuator to form a cylindrical magnet and cylindrical outer pole piece. The sectors require no further attachment or adhesive in addition to the magnetic field and provides substantially zero clearance contact between magnet and pole piece, to afford a continuous magnetic path interrupted only by the working gap through which the voice coil travels.
REFERENCES:
patent: 3666977 (1972-05-01), Helms et al.
patent: 3681630 (1972-08-01), Sutton
patent: 4155021 (1979-05-01), Corbach et al.
patent: 4305105 (1981-12-01), Ho et al.
patent: 4372035 (1983-02-01), McMillen
patent: 4439699 (1984-03-01), Brende et al.
patent: 4465946 (1984-08-01), Springer
patent: 4528466 (1985-07-01), von der Heide et al.
Boyd, III et al, "Linear Electric Motor", IBM Tech. Disc. Bull., vol. 15, No. 3, Aug. 1972, pp. 1023-1024.
Rusch et al, "Permanent Magnets in Stator of Moving-Coil Linear Actuator", IBM Tech. Disc. Bull., vol. 19, No. 5, Oct. 1976, pp. 1837-1839.
Hames Jeffrey L.
Lacey Charles M.
Neuman Ronald R.
Reidenbach John R.
International Business Machines - Corporation
Lahtinen Robert W.
Rebsch D. L.
Salce Patrick R.
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