US 12,658,734 B2Granted

Wireless charging system and wireless charging method

AssigneeHuawei Technologies Co., Ltd.

InventorsTao Ding, Yongfa Zhu, Zhensheng Chen, Kaijun Liu

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Abstract

Embodiments of this application disclose a wireless charging system. The wireless charging system includes a first electronic device, a wireless charging device, and a second electronic device. The wireless charging device is located between the first electronic device and the second electronic device. The wireless charging device is an auxiliary device of the first electronic device and is physically connected to the first electronic device, the wireless charging device includes a receiver circuit and a housing, the receiver circuit includes a receiver coil, and the receiver coil is located on an inner side of the housing. The first electronic device is configured to: charge the wireless charging device, charge the second electronic device through the wireless charging device, and receive power from the second electronic device through the wireless charging device.

Claims20

Dependent claims

A wireless charging apparatus, comprising:

a receiver circuit having a receiver coil;
and
a housing enclosing the receiver circuit, wherein the receiver coil of the receiver circuit located on an inner side of the housing;
a controller configured to determine whether the wireless charging apparatus has a wireless charging requirement, wherein the wireless charging apparatus configured to be positioned between a first electronic device and a second electronic device, the wireless charging apparatus is physically connected to the first electronic device and extends functions of the first electronic device as an auxiliary device used together with the first electronic device;
and
upon determining that the wireless charging apparatus has the wireless charging requirement, to enable
the receiver circuit to receive wireless power, via the receiver coil, from the first electronic device or the second electronic device;
and
upon determining that the wireless charging apparatus does not have the wireless charging requirement, to receive an electromagnetic field to be transparently transmitted between the first electronic device and the second electronic device, through the receiver coil.

6 more elements

A wireless charging system, comprising:

a first electronic device;
a second electronic device configured to transfer power wirelessly with the first electronic device;
and
a wireless charging device physically connected to the first electronic device and positioned between the first electronic device and the second electronic device, the wireless charging device comprising:
a housing;
a receiver circuit enclosed by the housing, the
receiver circuit including a receiver coil located on an inner side of the housing;
and
a controller configured to determine whether the wireless charging device has a wireless charging requirement, and
upon determining that the wireless charging device has the wireless charging requirement, to enable the receiver circuit to receive wireless power, via the receiver coil, from the first electronic device or the second electronic device;
and
upon determining that the wireless charging device does not have the wireless charging requirement, to receive an electromagnetic field to be transparently transmitted between the first electronic device and the second electronic device, through the receiver coil.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/748,569Filed 19 May 2022 · continuation
Priority: CN 201911143579.620 Nov 2019
Published: US 2022/0278557 A11 Sep 2022
Granted: 16 Jun 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification19 codes

H02J 50/12
Using inductive coupling: of the resonant type
G06F 1/1632
For portable computers: external expansion units, e.g. docking stations
G06F 1/1669
Details related to the integrated keyboard: detachable keyboards
G06F 1/26
Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00: power supply means, e.g. regulation thereof