Patent attributes
A wireless power transmission device includes a main body and a position-limiting plate. The main body includes a triggering button. The triggering button is located at a first side of the main body. The position-limiting plate is located at a second side of the main body and movable relative to the main body. When an electronic device is placed on the main body and contacted with the triggering button, the triggering button issues an enabling signal to the position-limiting plate. In response to the enabling signal, the position-limiting plate is moved toward the main body in order to fix the electronic device on the main body. In a case that an electric current provided to the triggering button is interrupted, the triggering button stops issuing the enabling signal. Consequently, the position-limiting plate is moved away from the main body and separated from the electronic device.
