Coil of wireless power transmission system and winding method thereof
A technology of wireless energy transmission and winding method, which is applied in the direction of coil manufacturing, transformer/inductor coil/winding/connection, transformer/inductor parts, etc., which can solve the problems of coil AC internal resistance increase and uneven current density, etc. , to achieve the effect of reducing the AC internal resistance and reducing the skin effect
Pending Publication Date: 2021-11-26
GUANGXI POWER GRID ELECTRIC POWER RES INST
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The invention provides a coil of a wireless power transmission system and a winding method thereof. The coil comprises a carrier and a Litz wire wound on the carrier, and is characterized in that a plurality of circles of threaded limiting grooves parallel to the periphery of a hollow circular ring are uniformly formed in the outer surface of the hollow circular ring, the threaded limiting grooves are uniformly arranged on the peripheral surface of the carrier, and the Litz wire is wound along the threaded limiting grooves to form N turns of coils. According to the coil of the wireless electric energy transmission system and the winding method of the coil, the Litz wire is adopted for spiral winding, all turns of the coil are smoothly connected, each section of the coil in the space is in the shape of a hollow circle, the Litz wire is adopted for winding the coil, the influence of the skin effect of the coil in the high-frequency working state can be reduced, and the alternating-current internal resistance of the coil under high frequency is further reduced.
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