Cooling system for a wireless power transmitter and receiver and method of using same
AssigneeAptiv Technologies AG
InventorsJohn Mecca, James R. Cook, Evan M. Wallace
Life of this patent
Estimating the term…
Abstract
Systems, methods, and devices for wireless charging are described. A wireless transmitter includes a source coil and an array of alignment magnets around the source coil. The wireless transmitter further includes a heat sink that is arranged in thermal contact with the array of alignment magnets to create a thermal path from the array of alignment magnets to the heat sink. In some examples, the heat sink includes a thermal interface arranged in thermal contact with opposed surface(s) of the array of alignment magnets that are opposite the active surface(s) of the alignment magnets used for magnetic alignment of a wireless power receiver.
Claims18
A wireless power transmitter, comprising:
- an array of alignment magnets arranged around a source coil in the wireless power transmitter, the array of alignment magnets including an active surface that interacts with a corresponding array of alignment magnets in a wireless power receiver and an opposed surface that is oppose the active surface;
- and
- a heat sink in thermal contact with at least a portion of the array of alignment magnets to create a thermal path from the array of alignment magnets to the heat sink, the heat sink arranged in thermal contact with the opposed surface of the array of alignment magnets, the thermal contact between the heat sink and the opposed surface of the array of alignment magnets includes at least one i.) a thermal surface of the heat sink directly contacting the opposed surface of the array of alignment magnets and ii.) the thermal surface of the heat sink directly contacting magnetic shielding that directly contacts the opposed surface of the array of alignment magnets.
A wireless power transmitter comprising:
- an array of alignment magnets arranged around a source coil in the wireless power transmitter;
- and
- a heat sink in thermal contact with at least a portion of the array of alignment magnets to create a thermal path from the array of alignment magnets to the heat sink, wherein the thermal path extends from the source coil and/or a ferrite sheet upon which the source coil is mounted to the heat sink through the array of alignment magnets.
A method of forming a wireless power transmitter, comprising:
- arranging an array of alignment magnets around a source coil;
- arranging a heat sink in thermal contact with at least a portion of the array of alignment magnets to create a thermal path from the array of alignment magnets to the heat sink;
- and
- arranging the heat sink to create the thermal path that extends from the source coil and/or a ferrite sheet upon which the source coil is mounted to the heat sink through the array of alignment magnets.
Dependencies are inferred from the claim text.