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Patent Searching and Data


Title:
WIRELESS CHARGING SYSTEM, WIRELESS CHARGING TRANSMITTING DEVICE AND WIRELESS CHARGING RECEIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/151049
Kind Code:
A1
Abstract:
The present application relates to the technical field of wireless charging. The wireless charging system provided in the present application comprises a wireless charging transmitting device and a wireless charging receiving device. The wireless charging transmitting device comprises a transmitting antenna array and a first controller. The wireless charging receiving device comprises a power receiving antenna and a second controller. When receiving a charging request signal from the second controller, the first controller controls the transmitting antenna array to sequentially switch to each polarization state of multiple polarization states to transmit a power signal. The second controller sends, to the first controller, feedback information indicating the amount of energy obtained from each power signal. The first controller determines an optimal polarization state according to the feedback information, so that the transmitting antenna array transmits power signals in the optimal polarization state. Thus, the optimal polarization state inspection of a downlink channel can be achieved to cope with the states of different transmission paths and wireless charging receiving devices, ensuring the polarization matching of the transmitting antenna and the receiving antenna, and greatly improving the energy transmission efficiency.

Inventors:
DU ZHIXIA (CN)
PAN NING (CN)
CHENG YUAN (CN)
Application Number:
PCT/CN2021/071499
Publication Date:
July 21, 2022
Filing Date:
January 13, 2021
Export Citation:
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Assignee:
HUAWEI DIGITAL POWER TECH CO LTD (CN)
International Classes:
H01Q21/24; H02J50/20
Foreign References:
CN108321552A2018-07-24
CN105830305A2016-08-03
CN111969733A2020-11-20
CN109378908A2019-02-22
CN111727568A2020-09-29
CN104040833A2014-09-10
US20120274154A12012-11-01
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