Title:
LOUDSPEAKER MODULE
Document Type and Number:
WIPO Patent Application WO/2023/123830
Kind Code:
A1
Abstract:
Disclosed in the present invention is a loudspeaker module, comprising: a module housing having an accommodating space, and a loudspeaker unit accommodated in the module housing, wherein the loudspeaker unit divides the accommodating space into a front sound cavity and a rear sound cavity which is filled with sound-absorbing particles; the module housing is provided with a suction hole which is in communication with the rear sound cavity to suck air outwards; the module housing comprises a housing bottom wall and a housing side wall which is connected to the periphery of the housing bottom wall, the housing bottom wall comprising an outer surface and an inner surface, and the housing side wall comprising an inner wall face; the suction hole comprises a recess hole which is at least recessed from the housing side wall in a direction from the outer surface to the inner surface, a hole bottom face of the recess hole having a height difference from the inner surface; and the inner wall face of the housing side wall is provided with an opening, by means of which the recess hole is in communication with the rear sound cavity. The loudspeaker module of the present invention has a better acoustic performance and a lower production cost.
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| JPH0750890 | SPEAKER DEVICE |
Inventors:
ZHANG BEIJING (CN)
Application Number:
PCT/CN2022/094322
Publication Date:
July 06, 2023
Filing Date:
May 23, 2022
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R9/02; H04R9/06
Foreign References:
| CN114245275A | 2022-03-25 | |||
| CN113163306A | 2021-07-23 | |||
| CN107509145A | 2017-12-22 | |||
| CN110958507A | 2020-04-03 | |||
| CN211744722U | 2020-10-23 | |||
| CN110896507A | 2020-03-20 | |||
| CN210641054U | 2020-05-29 | |||
| US20200213697A1 | 2020-07-02 |
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