Title:
LOUDSPEAKER BOX
Document Type and Number:
WIPO Patent Application WO/2021/174562
Kind Code:
A1
Abstract:
A loudspeaker box (100), comprising a housing (11) having an accommodation space, and a sound production cell (12), sound absorption particles (15), and a gas-permeable spacer (13) which are accommodated in the accommodation space of the housing (11). The sound production cell (12) divides the accommodation space into a front cavity and a rear cavity (113) opposite to the front cavity; the housing (11) comprises a top wall (1111) opposite to the sound production cell (12) and a first through hole (1114) provided on the top wall (1111) and communicated with the rear cavity (113); the rear cavity (113) is communicated with the outside by means of the first through hole (1114); a blockage portion (1117) extending towards the rear cavity (113) is further provided on the top wall (1111); the blockage portion (1117) and the top wall (1111) form a gas-permeable space (1118) communicated with the first through hole (1114); an opening (11171) communicated with the gas-permeable space (1118) is formed on the blockage portion (1117); the gas-permeable spacer (13) is mounted on the blockage portion (1117) and closes the opening (11171). The loudspeaker box (100) can maintain the smooth communication between the first through hole (1114) and the rear cavity (113) all the time, thereby ensuring the smoothness of the leakage of the rear cavity (113) of the loudspeaker box (100), and has a simple structure and strong practicability.
Inventors:
TONG DIJIANG (CN)
Application Number:
PCT/CN2020/078515
Publication Date:
September 10, 2021
Filing Date:
March 10, 2020
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R1/02; H04R9/02; H04R9/06
Foreign References:
| CN209390337U | 2019-09-13 | |||
| CN207665209U | 2018-07-27 | |||
| CN209390328U | 2019-09-13 | |||
| CN206433106U | 2017-08-22 | |||
| CN209105447U | 2019-07-12 | |||
| TW200952505A | 2009-12-16 | |||
| US20170150272A1 | 2017-05-25 |
Attorney, Agent or Firm:
SHENZHEN ZICHEN INTELLECTUAL PROPERTY AGENCY LIMITED (CN)
Download PDF:
Previous Patent: METAL MATERIAL WELDING-ROLLING INTEGRATED COMPOSITE FORMING METHOD AND APPARATUS
Next Patent: LOUDSPEAKER BOX
Next Patent: LOUDSPEAKER BOX