EXTERIOR CASE OF MOBILE PHONE FOR WIRELESS CHARGING USING ELECTROMAGNETIC COUPLED RESONANCE METHOD

摘要

The present invention relates to a case of a mobile phone with a wireless charging function of a battery of the mobile phone using an electromagnetic coupled resonance method. The case of the mobile phone for wireless charging includes a case body which is formed on the rear of the mobile phone, a resonant coil for receiving power which is arranged on the case body with a flat spiral structure and resonates high frequency power supplied from the outside, a feeding coil which is arranged in the resonant coil and receives the power, and an RF rectifier which rectifies the received power and supplies the power to the battery. Thereby, the battery is charged while using the mobile phone when the mobile phone is separated from the power transmitting device over several meters.