WIRELESS CHARGING COIL STRUCTURE

WIPO Patent Application WO/2022/088367

A1

A wireless charging coil structure. The wireless charging coil structure (100) comprises: a copper sheet coil (110) formed by winding a copper sheet in a single layer, the thickness of the copper sheet coil (110) being the same as that of the copper sheet; and lead wires, comprising a first lead wire (120) connected to a first end of the copper sheet coil (110) and a second lead wire (130) connected to a second end of the copper sheet coil (110), the first end being the tail end of the inner turn of the copper sheet coil (110), the second end being the tail end of the outer turn of the copper sheet coil (110), and the first lead wire (120) and the second lead wire (130) being positioned on the same side of the copper sheet coil (110). Due to the fact that the wireless charging coil is thin in thickness, free of any via hole and simple in technological process, the low impedance requirement of the coil can be satisfied only by one layer of copper sheet coil (110), cost is reduced, and therefore, the wireless charging coil can be well applied to a wireless charging terminal device.

LIU MAO (CN)
WANG HONGJUN (CN)
LU HONGHUI (CN)

PCT/CN2020/132576

May 05, 2022

November 30, 2020

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AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC MODULE TECH CHANGZHOU CO LTD (CN)

H01F27/29; H01F27/28; H02J50/10

WO2019088505A1

2019-05-09

CN109411211A	2019-03-01
CN109148111A	2019-01-04
CN108987094A	2018-12-11
CN203481927U	2014-03-12
CN205304413U	2016-06-08
CN105281541A	2016-01-27
CN109861403A	2019-06-07

SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)

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