Patent ID: 8941352
Filing Date: 2015-01-27
Classification: H01F,H02J

Abstract:
1. A contactless charging apparatus of a portable terminal, the apparatus comprising: a main circuit board comprising a circuit wiring formed thereon through a patterning process; a rectifying unit formed at an outermost layer of the main circuit board; a charging unit formed at the outermost layer of the main circuit board and electrically connected to the rectifying unit; and a secondary coil unit configured to generate an electromotive force which is induced by a primary coil mounted in a contactless charger, and to be formed at an inner layer under the outermost layer among inner layers of the main circuit board through the patterning process and electrically connected to the rectifying unit through via holes and a wiring layer, wherein the secondary coil unit comprises a coil layer spirally formed on a portion of the main circuit board.