发明名称 |
Wireless power transfer systems containing foil-type transmitter and receiver coils |
摘要 |
Wireless power transfer systems include at least one foil-type transmitter/receiver coil with a plurality of turns, which is configured to reduce eddy current losses therein when energized to conduct an alternating current that supports inductive power transfer including coil-to-coil power electrical transfer, inductive heating, etc. The plurality of turns includes at least an outermost turn with a first arcuate-shaped corner having a concave inner surface, which faces an immediately adjacent one of the plurality of turns. The immediately adjacent one of the plurality of turns may also have a second arcuate-shaped corner with a concave inner surface facing an innermost one of the plurality of turns. The first arcuate-shaped corner may have a non-uniform radius of curvature and/or an innermost one of the plurality of turns may have an arcuate-shaped corner, which is a mirror image of the first arcuate-shaped corner when the coil is view in transverse cross-section. |
申请公布号 |
US9123466(B2) |
申请公布日期 |
2015.09.01 |
申请号 |
US201314076930 |
申请日期 |
2013.11.11 |
申请人 |
Eaton Corporation |
发明人 |
Zheng Qingjie;Gu Yilei;Wu Tangshun;Zhao Tiefu;Xu Jun;Pahl Birger;Hua Yahan |
分类号 |
H01F27/28;H01F27/36;H01F38/14 |
主分类号 |
H01F27/28 |
代理机构 |
Myers Bigel Sibley & Sajovec, PA |
代理人 |
Myers Bigel Sibley & Sajovec, PA |
主权项 |
1. A wireless power transfer system, comprising:
a foil-type transmitter coil having a plurality of turns including at least an outermost turn with at least a first arcuate-shaped corner having a concave inner surface facing a convex outer surface of an immediately adjacent one of the plurality of turns, said immediately adjacent one of the plurality of turns having at least a second arcuate-shaped corner with a concave inner surface facing a concave outer surface of an innermost one of the plurality of turns having an arcuate-shaped corner that is a mirror image of the first arcuate-shaped corner; and wherein a middle one of the plurality of turns has flat inner and outer surfaces that face the innermost one of the plurality of turns and the outermost turn, respectively. |
地址 |
Cleveland OH US |