Wireless power transfer apparatus and method of manufacture
First Claim
1. A wireless power transfer apparatus comprising:
- a first casing portion having a wall with a plurality of projecting members extending from an inner surface of the wall and distributed across at least a portion of the inner surface of the wall, the projecting members comprising elastically deformable plastic that deforms when a compressive force is applied to the first casing portion;
a coil configured to wirelessly receive or transmit power, the coil extending around the projecting members;
a second casing portion connected to the first casing portion to form a chamber within which the coil is housed; and
a potting material disposed to fill the chamber formed by the first and second casing portions.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems, methods and apparatuses for wireless power transfer are disclosed. In one aspect, a wireless power transfer apparatus is provided comprising a casing with at least one projecting member projecting from an inner side of the surface of the casing that is subject to external compression forces. An induction coil and other components such as insulating layers and magnetically permeable members are positioned around at least one of the projecting members and maintained in position by the projecting members. The wireless power transfer apparatus is able to withstand large compressive forces, such as those imparted by heavy vehicles and the like passing over the apparatus when positioned on the ground in a wireless power transfer system.
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Citations
22 Claims
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1. A wireless power transfer apparatus comprising:
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a first casing portion having a wall with a plurality of projecting members extending from an inner surface of the wall and distributed across at least a portion of the inner surface of the wall, the projecting members comprising elastically deformable plastic that deforms when a compressive force is applied to the first casing portion; a coil configured to wirelessly receive or transmit power, the coil extending around the projecting members; a second casing portion connected to the first casing portion to form a chamber within which the coil is housed; and a potting material disposed to fill the chamber formed by the first and second casing portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 19)
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10. A method of manufacturing a wireless power transfer apparatus comprising:
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providing a first casing portion having a wall with a plurality of projecting members extending from an inner surface of the wall and distributed across at least a portion of the inner surface of the wall, the projecting members comprising elastically deformable plastic that deforms when a compressive force is applied to the first casing portion; positioning a coil around the plurality of projecting members, the coil configured to wirelessly receive or transmit power and the wall configured to withstand external compression forces; connecting a second casing portion to the first casing portion to form a chamber within which the coil is housed, and disposing a potting material within the chamber formed by the first and second casing portions. - View Dependent Claims (11, 12, 20, 22)
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13. A wireless power transfer apparatus comprising:
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first casing means for defining a portion of a chamber, the first casing means having an inner surface; a plurality of means for providing internal structural support located on and projecting from the inner surface of the first casing means and distributed across at least a portion of the inner surface of the first casing means, the plurality of means for providing internal structural support comprising elastically deformable plastic that deforms when a compressive force is applied to the first casing means; means for conveying electric current, wherein the means for conveying electric current is positioned to extend around the plurality of means for providing internal structural support and is configured to wirelessly receive or transmit power; second casing means for defining a further portion of the chamber, the second casing means secured to the first casing means to form the chamber for housing the means for conveying electric current; and means for potting disposed inside the chamber formed by the first and second casing means. - View Dependent Claims (14, 15, 16, 17, 18, 21)
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Specification