Coil topologies for inductive power transfer
First Claim
1. A magnetic flux device for wireless power transfer configured to transmit or receive magnetic flux to or from a space beyond the magnetic flux device, the magnetic flux device comprising:
- at least a first electrically conductive coil and a second electrically conductive coil, the first coil having a first section and a second section and the second coil having a third section and a fourth section, the first section substantially coplanar with the third section and the second section substantially coplanar with the fourth section;
a magnetically permeable material having;
a first side having a first length, a first width and a first center, anda second side, substantially parallel to the first side, having a second length, a second width, and a second center; and
an electrically conductive material having a first side substantially parallel to the second side of the magnetically permeable material;
the first section and the third section disposed on the first side of the magnetically permeable material, the second section and the fourth section disposed on the second side of the magnetically permeable material between the magnetically permeable material and the electrically conductive material, the first section and the third section positioned closer to the first center than the second section and the fourth section are positioned to the second center, the first section and the second section non-overlapping and connected to bound a first region, the third section and the fourth section non-overlapping and connected to bound a second region substantially coplanar with the first region, the first section positioned closer to the third section than to the second section, and the third section positioned closer to the first section than to the fourth section.
2 Assignments
0 Petitions
Accused Products
Abstract
This disclosure provides systems, methods and apparatus including a magnetic flux device configured to transmit or receive magnetic flux to or from a space beyond the magnetic flux device. In certain configurations, the magnetic flux device can include a first coil with a first layer and second layer, a second coil with a third layer and fourth layer, and a magnetically permeable material with the first coil extending over a first edge of the magnetically permeable material and the second coil extending over a second edge of the magnetically permeable material. In certain other configurations, the magnetic flux device can include a first conductive structure including a first coil and a second coil enclosing a first area and a second area, respectively. The magnetic flux device can further include a second conductive structure with at least a first planar portion of the first conductive structure being substantially coplanar with a second planar portion of the second conductive structure.
16 Citations
19 Claims
-
1. A magnetic flux device for wireless power transfer configured to transmit or receive magnetic flux to or from a space beyond the magnetic flux device, the magnetic flux device comprising:
-
at least a first electrically conductive coil and a second electrically conductive coil, the first coil having a first section and a second section and the second coil having a third section and a fourth section, the first section substantially coplanar with the third section and the second section substantially coplanar with the fourth section; a magnetically permeable material having; a first side having a first length, a first width and a first center, and a second side, substantially parallel to the first side, having a second length, a second width, and a second center; and an electrically conductive material having a first side substantially parallel to the second side of the magnetically permeable material; the first section and the third section disposed on the first side of the magnetically permeable material, the second section and the fourth section disposed on the second side of the magnetically permeable material between the magnetically permeable material and the electrically conductive material, the first section and the third section positioned closer to the first center than the second section and the fourth section are positioned to the second center, the first section and the second section non-overlapping and connected to bound a first region, the third section and the fourth section non-overlapping and connected to bound a second region substantially coplanar with the first region, the first section positioned closer to the third section than to the second section, and the third section positioned closer to the first section than to the fourth section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. A magnetic flux device for wireless power transfer configured to transmit or receive magnetic flux to or from a space beyond the magnetic flux device, the magnetic flux device comprising:
-
at least a first electrically conductive coil and a second electrically conductive coil, the first coil having a first section and a second section connected as a continuous winding to form the first coil, and the second coil having a third section and a fourth section connected as a continuous winding to form the second coil, the first section substantially coplanar with the third section and the second section substantially coplanar with the fourth section; a magnetically permeable material having; a first side, and a second side substantially opposite the first side; and an electrically conductive material having a first side substantially parallel to the second side of the magnetically permeable material, the first section and the third section disposed on the first side, the second section and the fourth section disposed on the second side between the magnetically permeable material and the electrically conductive material, and wherein a plane of the first coil formed by bisecting the first section and second section is disposed in an oblique arrangement relative to the first and second side of the magnetically permeable material and wherein a plane of the second coil formed by bisecting the third section and fourth section is disposed in an oblique arrangement relative to the first and second side of the magnetically permeable material, the first section and the second section non-overlapping, the third section and the fourth section non-overlapping, the first section positioned closer to the third section than to the second section, and the third section positioned closer to the first section than to the fourth section.
-
-
19. A magnetic flux device for wireless power transfer configured to transmit or receive magnetic flux to or from a space beyond the magnetic flux device, the magnetic flux device comprising:
-
a first electrically conductive coil and a second different electrically conductive coil, the first coil having a first section and a second section and the second coil having a third section and a fourth section, the first section substantially coplanar with the third section and the second section substantially coplanar with the fourth section; means for modifying magnetic flux generated by the first electrically conductive coil and the second different electrically conductive coil, the modifying means having; a first side having a first length, a first width, and a first center, and a second side, substantially parallel with the first side, having a second length, a second width, and a second center; and an electrically conducting means having a first side substantially parallel to the second side of the modifying means, the first section and the third section disposed on the first side of the modifying means, the second section and the fourth section disposed on the second side of the modifying means between the modifying means and the electrically conducting means, and the first section and the third section positioned closer to the first center than the second section and the fourth section are positioned to the second center, the first section and the second section non-overlapping and connected to bound a first region, the third section and the fourth section non-overlapping and connected to bound a second region substantially coplanar with the first region, the first section positioned closer to the third section than to the second section, and the third section positioned closer to the first section than to the fourth section.
-
Specification