CORE USED IN POWER RECEPTION SIDE COIL UNIT OF VEHICLE NON-CONTACT CHARGING SYSTEM AND MANUFACTURING METHOD OF THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a core used in a power reception side coil unit of a vehicle non-contact charging system which enables a resin case to be thinly formed and reduces distances between magnetic material elements to improve the electric power transmission efficiency.SOLUTION: A core 40 used in a power reception side coil unit 21 of a vehicle non-contact charging system 10 includes: multiple magnetic material elements 41 which are formed into a rectangular flat plate shape and arranged in a lattice manner without forming gaps therebetween; and a resin insert core case 42 which integrally packages the multiple magnetic material elements by insert-molding the multiple magnetic material elements.