SYSTEM AND METHOD FOR REDUCING EMISSIONS FOR POLARIZED COIL SYSTEMS FOR WIRELESS INDUCTIVE POWER TRANSFER
First Claim
1. A magnetic flux device configured to transmit magnetic flux to or to receive magnetic flux from a space beyond the device, the device comprising:
- at least a first electrically conductive coil and a second electrically conductive coil, the first coil substantially planar, having a first inner periphery bounding a first region, and having a first outer periphery bounding a first area, the first outer periphery having at least one substantially straight first portion, the second coil substantially planar, having a second inner periphery bounding a second region, and having a second outer periphery bounding a second area, the second outer periphery having at least one substantially straight second portion, the second coil substantially coplanar with the first coil; and
a magnetically permeable material having a substantially planar surface and having a third outer periphery bounding a third area, the first coil and the second coil substantially parallel to the substantially planar surface, the third area extending beyond the first area along the at least one substantially straight first portion and beyond the second area along the at least one substantially straight second portion, the magnetically permeable material substantially overlaying the first region and substantially overlaying the second region.
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Accused Products
Abstract
This disclosure includes systems, methods and apparatus for reducing emissions for polarized coil systems for wireless inductive power transfer. In one aspect, a magnetic flux device is provided which includes at least a first electrically conductive coil and a second electrically conductive coil that is substantially coplanar with the first coil. The device includes a magnetically permeable material having a substantially planar surface. The first coil and the second coil are substantially parallel to the substantially planar surface. The area of the material extends beyond the area of the first coil and beyond the area of the second coil. The area of the coil can substantially surround the area of the first coil and the area of the second coil.
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Citations
20 Claims
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1. A magnetic flux device configured to transmit magnetic flux to or to receive magnetic flux from a space beyond the device, the device comprising:
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at least a first electrically conductive coil and a second electrically conductive coil, the first coil substantially planar, having a first inner periphery bounding a first region, and having a first outer periphery bounding a first area, the first outer periphery having at least one substantially straight first portion, the second coil substantially planar, having a second inner periphery bounding a second region, and having a second outer periphery bounding a second area, the second outer periphery having at least one substantially straight second portion, the second coil substantially coplanar with the first coil; and a magnetically permeable material having a substantially planar surface and having a third outer periphery bounding a third area, the first coil and the second coil substantially parallel to the substantially planar surface, the third area extending beyond the first area along the at least one substantially straight first portion and beyond the second area along the at least one substantially straight second portion, the magnetically permeable material substantially overlaying the first region and substantially overlaying the second region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A magnetic flux device configured to transmit magnetic flux to or to receive magnetic flux from a space beyond the device, the device comprising:
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at least a first electrically conductive coil and a second electrically conductive coil, the first coil substantially planar and having a first outer periphery bounding a first area, the second coil substantially planar and having a second outer periphery bounding a second area, the second coil substantially coplanar with the first coil; and a magnetically permeable material having a substantially planar surface and having a third outer periphery bounding a third area, the first coil and the second coil substantially parallel to the substantially planar surface, the third area extending beyond the first area and the second area, the third area substantially surrounding the first area and the second area. - View Dependent Claims (16, 17, 18, 19)
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20. A method for wirelessly transferring power, the method comprising:
using a magnetic flux device to transmit magnetic flux to or to receive magnetic flux from a space beyond the magnetic flux device, the magnetic flux device comprising at least a first electrically conductive coil, a second electrically conductive coil, and a magnetically permeable material, the first coil substantially planar, having a first inner periphery bounding a first region, and having a first outer periphery bounding a first area, the first outer periphery having at least one substantially straight first portion, the second coil substantially planar, having a second inner periphery bounding a second region, and having a second outer periphery bounding a second area, the second outer periphery having at least one substantially straight second portion, the second coil substantially coplanar with the first coil, the magnetically permeable material having a substantially planar surface and having a third outer periphery bounding a third area, the first coil and the second coil substantially parallel to the substantially planar surface, the third area extending beyond the first area along the at least one substantially straight first portion and beyond the second area along the at least one substantially straight second portion, the magnetically permeable material substantially overlaying the first region and substantially overlaying the second region.
Specification