Linear motor

Details Linear motor Linear motor

1982-10-25

1985-05-21

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Linear

310 27, H02K 3302

Patent

active

045188815

ABSTRACT:
A linear motor employing two spaced planar magnets which are removed from the bobbin and coil of the motor to thereby reduce heat transfer. The support structure for the magnets and bobbin are configured to facilitate magnetic flux transfer between an outer pole and an inner pole of the motor with a minimum of flux leakage. The gap between the inner pole and the outer pole which accommodates a bobbin and coil is configured to provide a generally uniform force on a bobbin when displaced by the motor and also increase the amount of force exerted on the bobbin by increasing the flux transfer. The magnets preferably comprise a plurality of magnetic blocks.

REFERENCES:
patent: 2832903 (1958-04-01), Carter
patent: 3139548 (1964-06-01), Dreyfuss
patent: 3417269 (1968-12-01), Heller et al.
patent: 3577023 (1971-05-01), Bleiman
patent: 3995364 (1976-12-01), Kristiansen
patent: 4318038 (1982-03-01), Munehiro
IBM Tech. Disclosure Bulletin, "Linear Actuator with Shorted Turn, etc.", Hu, vol. 13, No. 4, 9/70.

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