Title:
LOUDSPEAKER BOX
Document Type and Number:
WIPO Patent Application WO/2021/174563
Kind Code:
A1
Abstract:
A loudspeaker box (100), comprising a housing (11) having an accommodation space, a sound production unit (12) accommodated in the housing (11), sound-absorbing particles (15) and an air-permeable isolation member (13); the sound production unit (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 unit (12) and a first through-hole (1115) arranged on the top wall (1111) and in communication with the rear cavity (113); the sound-absorbing particles (15) are filled in the rear cavity (113), and the air-permeable isolation member (13) encloses the first through-hole (1115); the top wall (1111) is further provided with a blocking portion (1118) extending towards the rear cavity (113), the blocking portion (1118) and the top wall (1111) form an air-permeable space (11182) and an air-permeable channel (11183) in communication with the air-permeable space (11182), and the air-permeable space (11182) is in communication with the first through-hole (1115) and has an opening (11184) in communication with the rear cavity (113); and the smallest size of the air-permeable channel (11183) and the size of the opening (11184) are both smaller than the outer diameter of the sound-absorbing particles (15). The loudspeaker box (100) ensures the unobstructed leakage of the rear cavity (113), and has a simple structure and strong practicability.
Inventors:
TONG DIJIANG (CN)
Application Number:
PCT/CN2020/078517
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; H04R9/06
Foreign References:
| CN204408577U | 2015-06-17 | |||
| CN107592598A | 2018-01-16 | |||
| CN107454520A | 2017-12-08 | |||
| CN206602656U | 2017-10-31 | |||
| CN207083223U | 2018-03-09 | |||
| CN208509256U | 2019-02-15 | |||
| US10225645B1 | 2019-03-05 | |||
| US20100329498A1 | 2010-12-30 |
Attorney, Agent or Firm:
SHENZHEN ZICHEN INTELLECTUAL PROPERTY AGENCY LIMITED (CN)
Download PDF: