Stationary electromagnetic induction unit
First Claim
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1. A stationary electromagnetic induction unit provided with at least one single-turn edgewise-wound plate-like coil, comprising:
- a plurality of coil elements each having a uniform predetermined width, said plurality of coil elements would in parallel with one another, for forming a composite plate-like coil as said single-turn edgewise-wound plate-like coil, said plurality of coil elements being arranged such that said composite plate-like coil has at least an inner coil element, an outer coil element, and a middle coil element, wherein among the plurality of coil elements of said composite plate-like coil, the width of said inner and outer coil elements is narrower than the width of said middle coil element.
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Abstract
In a stationary electromagnetic induction unit according to this invention, a plate-like coil is constituted by a plurality of coil elements wound in parallel. Therefore, a conductor width of the coil element becomes small, and a stray loss caused by a leakage flux vertically interlinked with the surface of the coil element, namely, the plate-like coil is reduced.
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Citations
1 Claim
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1. A stationary electromagnetic induction unit provided with at least one single-turn edgewise-wound plate-like coil, comprising:
a plurality of coil elements each having a uniform predetermined width, said plurality of coil elements would in parallel with one another, for forming a composite plate-like coil as said single-turn edgewise-wound plate-like coil, said plurality of coil elements being arranged such that said composite plate-like coil has at least an inner coil element, an outer coil element, and a middle coil element, wherein among the plurality of coil elements of said composite plate-like coil, the width of said inner and outer coil elements is narrower than the width of said middle coil element.
Specification
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Current AssigneeMitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
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Original AssigneeMitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
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InventorsShinkai, Hiromu
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Primary Examiner(s)Kozma, Thomas J.
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Application NumberUS07/528,985Time in Patent Office424 DaysField of Search336/232, 336/223, 336/186, 336/200, 336/187, 336/183US Class Current336/223CPC Class CodesH01F 27/2847 Sheets; Strips H01F27/2866 ...
