Patent ID: 11910155
Assignee: AAC KAITAI TECHNOLOGIES (WUHAN) CO., LTD
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A MEMS speaker, comprising:
a housing with a receiving space; and
a MEMS speaker chip with an inner cavity, accommodated in the receiving space and connected with the housing, the MEMS speaker chip dividing the receiving space into a first cavity and a second cavity communicating with the inner cavity; wherein
the housing includes a printed circuit board connected with the MEMS speaker chip and a shell assembled with the printed circuit board for forming the receiving space, the shell and the MEMS speaker chip form the first cavity, the printed circuit board and the MEMS speaker chip form the second cavity, a sound hole is formed on the printed circuit board and communicating with the second cavity, a damping mesh is attached to the printed circuit board and covering the sound hole, sounds emitted by the MEMS speaker chip transmit outward through the sound hole and the damping mesh.