Wireless power transfer apparatus and method of manufacture

摘要

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.

主权项

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.