Title:
MOBILE TERMINAL
Document Type and Number:
WIPO Patent Application WO/2021/114072
Kind Code:
A1
Abstract:
Provided is a mobile terminal comprising a housing, a sound emission device provided at the housing and a sound output hole formed at the housing. The sound emission device comprises a diaphragm that vibrates to generate sound. The diaphragm and the housing are spaced apart from each other to form a front cavity. The housing further comprises a sound output cavity and a resonant cavity spaced apart from each other. The front cavity respectively communicates with the sound output cavity and the resonant cavity. The sound output cavity communicates with the sound output hole to form a sound output channel. The mobile terminal of the present invention is provided with a resonant cavity in communication with a front cavity, such that the resonant cavity can generate an anti-resonance at positions of resonance peaks in the front cavity and a sound emission cavity, thereby effectively reducing high-frequency resonance peaks and sensitivity, improving high-frequency response flatness of the mobile terminal, effectively improving acoustic performance of the mobile terminal, and enhancing sound quality of the mobile terminal.
Inventors:
LIU ZHONGYUAN (CN)
REN YUE (CN)
REN YUE (CN)
Application Number:
PCT/CN2019/124257
Publication Date:
June 17, 2021
Filing Date:
December 10, 2019
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:
| CN109874067A | 2019-06-11 | |||
| CN110177324A | 2019-08-27 | |||
| CN207070330U | 2018-03-02 | |||
| CN107889035A | 2018-04-06 | |||
| US20180084323A1 | 2018-03-22 |
Attorney, Agent or Firm:
SHENZHEN CIPRUN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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