Title:
SCREEN SOUND GENERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/248303
Kind Code:
A1
Abstract:
A screen sound generating device, comprising a frame (10), a screen (20) mounted on the frame (10), and a driving device (30) provided between the frame (10) and the screen (20) for driving the screen (20) to vibrate and produce a sound. The driving device (30) comprises a magnetic circuit system (31) fixed to the screen (20) and an electromagnet (32) fixed to the frame (10) for driving the magnetic circuit system (31) to vibrate. The magnetic circuit system (31) comprises a connecting cover plate (311) fixed to the screen (20) and magnetic steels (312) fixed to a side of the connecting cover plate (311) away from the screen (10), and the magnetic steels (312) are provided to surround the electromagnet (32). The screen sound generating device can simultaneously satisfy the requirements of low energy consumption and provision of a relatively large driving force.
Inventors:
CHEN ZHAOXIAN (CN)
MAO LUBIN (CN)
MAO LUBIN (CN)
Application Number:
PCT/CN2019/092838
Publication Date:
December 17, 2020
Filing Date:
June 25, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECH NANJING CO LTD (CN)
AAC TECH NANJING CO LTD (CN)
International Classes:
H04R9/02; H04R9/06
Foreign References:
| CN109040917A | 2018-12-18 | |||
| CN205847579U | 2016-12-28 | |||
| CN209057363U | 2019-07-02 | |||
| CN205847543U | 2016-12-28 | |||
| CN205510381U | 2016-08-24 | |||
| CN205961447U | 2017-02-15 | |||
| CN207083226U | 2018-03-09 | |||
| US9820051B2 | 2017-11-14 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
Download PDF: