WIRELESS CHARGING DEVICE, AUTOMATIC ALIGNMENT METHOD, AND CHARGING DOCK

This application discloses a wireless charging device, an automatic alignment method, and a charging dock. The wireless charging device includes: a transmitter coil, a controller, and at least two detection coils. The at least two detection coils are located on a side of a plane on which the transmitter coil is located, and a plane on which the detection coils are located is parallel to the plane on which the transmitter coil is located. The controller is configured to: separately control the at least two detection coils to sequentially connect to an excitation power source, obtain parameters of the detection coils connected to the excitation power source, and control, based on a value difference between the parameters of the at least two detection coils, the transmitter coil to move, so that the transmitter coil aligns with a receiver coil in an electronic device. Because a sum of areas covered by the plurality of disposed detection coils is greater than an area covered by the transmitter coil, a position of the receiver coil is determined by using the parameters of the detection coils. Further, the transmitter coil is controlled to move to align with the receiver coil. An acceptable placement range of the electronic device is larger, charging flexibility is improved, and wireless charging experience of a user is improved.