Title:
COIL AND WIRELESS CHARGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/052182
Kind Code:
A1
Abstract:
A coil (100) and a wireless charging device. The outer periphery of the coil (100) is wound in parallel by four strands of multi-turn outer coils stacked in a first planar winding (T3) and a second planar winding (B3); and the inner periphery of the coil is wound in parallel by two strands of multi-turn inner coils stacked in the first planar winding (T3) and the second planar winding (B3), so that the outer coils make full use of a peripheral space, the current distribution of the inner coils and the outer coils is more uniform, the magnetic field distribution is more uniform, and the alternating current resistance of an induction coil is smaller.
Inventors:
WANG HONGJUN (CN)
JIANG GE (CN)
LIU MAO (CN)
JIANG GE (CN)
LIU MAO (CN)
Application Number:
PCT/CN2020/117755
Publication Date:
March 17, 2022
Filing Date:
September 25, 2020
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECH NANJING CO LTD (CN)
AAC TECH NANJING CO LTD (CN)
International Classes:
H01F38/14; H01F27/28; H02J7/00; H02J50/00; H02J50/10
Foreign References:
| CN109887724A | 2019-06-14 | |||
| CN108565102A | 2018-09-21 | |||
| CN108735439A | 2018-11-02 | |||
| CN111092495A | 2020-05-01 | |||
| US20190334391A1 | 2019-10-31 |
Attorney, Agent or Firm:
SHENZHEN CHINA INNOVATION SOUTH INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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