Electrical generator or motor structure – Dynamoelectric – Linear
Patent
1998-07-23
2000-03-14
LaBalle, Clayton
Electrical generator or motor structure
Dynamoelectric
Linear
318135, H02K 4100, H02K 4102
Patent
active
060376805
ABSTRACT:
A linear motor includes a single-phase coil, a plurality of polyphase coils each of which is shorter than the single-phase coil and wound to be parallel to the single-phase coil, a first permanent magnet movable relative to the single-phase coil and the plurality of polyphase coils in an axial direction of the single-phase coil, a first yoke consisting of a ferromagnetic substance and extending through the single-phase coil in the axial direction, a second yoke consisting of a ferromagnetic substance and having, outside the single-phase coil, a portion arranged to be parallel to the first yoke, to form a closed magnetic circuit together with the first yoke and the first permanent magnet such that the closed magnetic circuit circulates magnetic fluxes from the first permanent magnet across a winding of the single-phase coil, and a second permanent magnet for connecting the first and second yokes.
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Ebinuma Ryuichi
Korenaga Nobushige
Canon Kabushiki Kaisha
LaBalle Clayton
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