Patent ID: 11916399
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A wireless charging receiving apparatus of a mobile terminal, comprising:
a matching circuit;
an AC/DC conversion module;
a control unit; and
a coil comprising:
an output terminal,
an input terminal, and
a wire-winding part that is connected between the output terminal and the input terminal,
wherein a slot is disposed on at least a part of the wire-winding part, the slot is disposed between outer edges of a width of the wire winding part at the at least a portion of the wire winding at which the slot is disposed, and a depth of the slot of the wire-winding part is less than or equal to the width of the wire-winding part, to reduce an eddy current loss caused in the coil by a magnetic field, wherein the slot comprises at least two portions, wherein a first portion of the slot cuts through the wire-winding part of the coil, and wherein a second portion of the slot has a preset depth disposed on the second portion of the wire-winding part of the coil, the preset depth less than a depth of the wire-winding part,
wherein the wire-winding part is a metal conductor made through spiral winding,
wherein the input terminal and the output terminal are configured to connect the wire-winding part to an external circuit; and

wherein the matching circuit is connected between the coil and the AC/DC conversion module, and is configured to generate resonance with the coil; and
wherein the control unit is configured to control the AC/DC conversion module to convert an alternating current signal received by the coil into a direct current signal, to supply power to a load in the mobile terminal.