Patent ID: 11870272
Assignee: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A wireless charging system of a mobile terminal, comprising a receiving apparatus and a transmitting apparatus, wherein the transmitting apparatus is disposed on a wireless charger, and the receiving apparatus is disposed inside the mobile terminal;
the receiving apparatus and the transmitting apparatus each comprise two interconnected coils, the two interconnected coils are located in a same plane and are connected in series, and winding directions of the two interconnected coils are opposite; and
when a current flows through the two coils connected in series with each other, directions of magnetic fields generated by the two coils are opposite, so that directions of magnetic fluxes of the magnetic fields generated by the two interconnected coils of the receiving apparatus on a metal rear housing of the mobile terminal are opposite, and directions of magnetic fluxes of the magnetic fields generated by the two interconnected coils of the transmitting apparatus on the metal rear housing of the mobile terminal are opposite.