Wireless power supply device and method applied to electronic lock

A wireless power supply device applied to an electronic lock, mounted to a door body, the door body having a door frame, the door frame being provided with a door panel, the wireless power supply device comprising:

• a power supply unit, mounted to the door frame, the power supply unit having a first processor, the first processor being electrically connected to a first wireless communication module, a first radio frequency coil and a first power module, the first power module being electrically connected to an external power source for receiving power provided by the external power source;
• a power receiving unit, mounted to the door panel corresponding in position to the power supply unit, the power receiving unit having a second processor, the second processor being electrically connected to a second wireless communication module, a second radio frequency coil and a second power module, the second power module being electrically connected to an electronic lock;
• wherein after a user operates an external controller to input a correct unlocking command, the external controller activates the wireless power supply device to start to perform power transmission, wireless power transmission is performed between the first radio frequency coil and the second radio frequency coil using radio frequency identification technology, the power supply unit and the power receiving unit perform a handshaking process through the first wireless communication module and the second wireless communication module to confirm whether they are paired objects, if yes, the power receiving unit allows the received power to be transmitted to the electronic lock.