Linear pulse motor

Details Linear pulse motor Linear pulse motor

1985-03-28

1987-04-28

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Linear

318135, H02K 4100

Patent

active

046617302

ABSTRACT:
A linear pulse motor which includes: a primary magnetic flux generating unit composed of a pair of cores each having a coil wound therearound and a plurality of magnetic poles provided at end portions thereof; and a scale having a row of first teeth formed therein along a direction of relative travel thereof with respect to the magnetic flux generating unit, the scale and the flux generating unit being disposed so that the scale relatively moves with respect to the primary magnetic flux generating unit by generating magnetic flux between gaps formed between the magnetic poles and the teeth facing to the magnetic poles. The magnetic flux generating unit includes a spacer through which the cores are jointed in a parallel manner. Each core has a pair of arms and a substantially U shape, the core being provided on each end of the arms thereof with the magnetic pole. The magnetic flux generating unit is disposed with respect to the scale so that the cores are placed in one of both a direction parallel to and a direction perpendicular to the row of teeth.

REFERENCES:
patent: 3656014 (1972-04-01), Kich
patent: 4370577 (1983-01-01), Wakabayashi et al.
patent: 4504750 (1985-03-01), Onodera et al.
patent: 4535260 (1985-08-01), Pritchard et al.
patent: 4563602 (1986-01-01), Nagasaka
patent: 4578622 (1986-03-01), Nakagawa et al.
patent: 4581553 (1986-04-01), Moczala
patent: 4594520 (1986-06-01), Miwa et al.

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