CORE ASSEMBLY FOR WIRELESS POWER TRANSMISSION APPARATUS AND WIRELESS POWER TRANSMISSION APPARATUS HAVING THE SAME

摘要

PURPOSE: A core assembly for wireless power transmission apparatus and a wireless power transmission apparatus having the same are provided to minimize the degradation of power deliver efficiency by positing two sub coils in the same level. CONSTITUTION: A main coil(111) is arranged in order to be located in a first level. An auxiliary coil is arranged in the lower side of the main coil. The auxiliary coil is overlapped with the main coil. The auxiliary coil includes a first sub coil which is smaller than the main coil and a second sub coil. A core(150) of magnetic material is formed in order to accommodate the main coil and the auxiliary coil.