초록 ▼

An inductive battery charging system comprising a charge probe and a charge port that employs multi-turn spiral and helical windings in the charge probe to provide improved thermal management of the power produced by the charging system. The thermal management provided by the multi-turn windings of

An inductive battery charging system comprising a charge probe and a charge port that employs multi-turn spiral and helical windings in the charge probe to provide improved thermal management of the power produced by the charging system. The thermal management provided by the multi-turn windings of the present invention improves the power handling capacity of the system and reduces AC proximity losses. Numerous flat helical coil and spiral transformer windings are disclosed that provide for differing thermal management schemes. The present invention may be used to increase the inductive charging capacity of electric vehicle propulsion batteries to on the order of 120 KW. The present invention may be used with almost any transformer or inductor that uses foil windings.

대표청구항 ▼

An inductive charging system for use in charging batteries of an electric vehicle, wherein said inductive charging system comprises a power source, a charge station coupled to the power source, a charge probe that comprises a primary core and a primary winding of a transformer coupled to the charge

An inductive charging system for use in charging batteries of an electric vehicle, wherein said inductive charging system comprises a power source, a charge station coupled to the power source, a charge probe that comprises a primary core and a primary winding of a transformer coupled to the charge station by means of an extendable charging cable, a charge port disposed in the electric vehicle that comprises a secondary core and secondary windings of the transformer, and a charge controller coupled between the charge port and the batteries of the electric vehicle, wherein the improvement comprises: a primary winding comprising a predetermined number of turns stacked in a predetermined number of layers and wherein at least one of the turns comprises a spiral multi-turn winding such that the number of layers is less than the number of turns.