US 12,407,967 B2
Microphone
Jinyu Zhang, Shenzhen (CN)
Assigned to AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD., Shenzhen (CN)
Filed by AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD., Shenzhen (CN)
Filed on May 24, 2023, as Appl. No. 18/323,391.
Application 18/323,391 is a continuation of application No. PCT/CN2023/080307, filed on Mar. 8, 2023.
Claims priority of application No. 202222970739.8 (CN), filed on Nov. 7, 2022.
Prior Publication US 2024/0155279 A1, May 9, 2024
Int. Cl. H04R 1/04 (2006.01)
CPC H04R 1/04 (2013.01) [H04R 2499/13 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A microphone comprising:
a housing comprising an accommodating cavity;
a circuit board fixed in the accommodating cavity;
an interface assembly fixed to an outer side of the housing and electrically connected to the circuit board; and
a microphone unit fixed to the circuit board;
wherein the housing comprises a shell having the accommodating cavity and a cover plate fixed to the housing and covering the accommodating cavity, the interface assembly is fixed to one side of the shell away from the cover plate, an insertion direction of the interface assembly is perpendicular to a surface of the circuit board, and the shell defines a pickup channel for providing sound signals to the microphone unit;
a component surface is formed at a first side of the circuit board where the microphone unit is disposed, and an acoustic surface is formed at a second side of the circuit board; the cover plate is disposed opposite to the component surface, and the cover plate is fixed to the shell; the pickup channel is disposed opposite to the acoustic surface, and the pickup channel is exposed to the acoustic surface;
the circuit board defines a first through hole communicating the component surface and the acoustic surface, the microphone unit covers a first end of the first through hole located at the component surface, and the pickup channel communicates with a second end of the first through hole located at the acoustic surface;
the pickup channel comprises a first channel formed by extending inward from a surface of the shell, and a second channel formed by bending from one end of the first channel away from the surface of the shell toward one side close to the acoustic surface and extending to an inner wall of the shell, and the second channel communicates with the first through hole.