Patent attributes
Provided is a wireless charging system for a portable terminal, the system including: a terminal accessory which is fixed to the rear surface of a portable terminal and in which a transmission coil for generating a magnetic field for electromagnetic induction-type wireless charging is embedded; and a wireless charging device which is couplable to the terminal accessory by using magnetism, wherein: the terminal accessory and the wireless charging device include a first electric contact point and a second electric contact point, respectively, and thus, when the terminal accessory and the wireless charging device are coupled to each other, the first and second electric contact points come into contact with each other, so that power is supplied from the wireless charging device to the transmission coil embedded in the terminal accessory; and two or more magnets arranged in different polar directions from each other are provided at the wireless charging device.
