Title:
SOUND PRODUCTION DEVICE AND VOICE COIL THEREOF, AND WINDING METHOD FOR VOICE COIL
Document Type and Number:
WIPO Patent Application WO/2022/007006
Kind Code:
A1
Abstract:
Provided are a sound production device and a voice coil thereof, and a winding method for the voice coil. The voice coil comprises a first voice coil and a second voice coil. The first voice coil comprises a first inner layer, and a first outer layer formed on a side of the first inner layer away from a through hole; the first inner layer is provided with a first protruding part, which protrudes out of the first outer layer in the axis direction of the through hole and forms a first accommodating slot with the first outer layer in an enclosing manner; the second voice coil comprises a second inner layer, which abuts against the first inner layer and forms the through hole with the first inner layer in an enclosing manner, and a second outer layer, which is formed on a side of the second inner layer away from the through hole; the second outer layer is provided with a second protruding part, which protrudes out of the second inner layer in the axis direction of the through hole and forms a second accommodating slot with the second inner layer in an enclosing manner; and the first accommodating slot completely accommodates and fixes the second protruding part, and the second accommodating slot completely accommodates and fixes the first protruding part. According to the sound production device and the voice coil thereof and the winding method for the voice coil, the influence of the first voice coil on the second voice coil is reduced, such that the aim of regularizing the voice coil is achieved, and the performance of the voice coil is improved.
Inventors:
GU YUEMEI (CN)
CHEN JUN (CN)
HUANG ZHEN (CN)
CHEN JUN (CN)
HUANG ZHEN (CN)
Application Number:
PCT/CN2020/103899
Publication Date:
January 13, 2022
Filing Date:
July 23, 2020
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R9/06; H04R9/02
Foreign References:
| CN110149578A | 2019-08-20 | |||
| CN111294720A | 2020-06-16 | |||
| CN209562791U | 2019-10-29 | |||
| CN110166905A | 2019-08-23 | |||
| KR20190094904A | 2019-08-14 |
Attorney, Agent or Firm:
SHENZHEN ZICHEN INTELLECTUAL PROPERTY AGENCY LIMITED (CN)
Download PDF:
Previous Patent: SOUND PRODUCTION DEVICE AND VOICE COIL THEREOF, AND WINDING METHOD FOR VOICE COIL
Next Patent: NEW USE OF COLCHICINE
Next Patent: NEW USE OF COLCHICINE