Non-contact battery charging equipment using a soft magnetic plate
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United States of America Patent
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Dec 28, 1999
Grant Date -
N/A
app pub date -
Sep 28, 1998
filing date -
Sep 29, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
The invention provides a non-contact charging equipment having high transmission efficiency and used to supply electric power on non-contact basis by electromagnetic induction, whereby it comprises a plurality of coils on a planar magnetically soft material on each of power transmitting and power receiving sides, whereby the coils on the power transmitting side and the power receiving side are arranged at opposed positions and with a spacing so that magnetic fluxes generated by adjacent coils are directed in reverse directions, the magnetically soft material in planar shape on the power receiving side is arranged directly or via an insulating member on a battery can, and heat generated on the power receiving side is radiated by the battery can.
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