Patent ID: 11950054
Assignee: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. The MEMS condenser microphone as described in claim 5, wherein the electrostatic clutch comprises a seventh connecting part, a third suspension beam and a third suspension plate;
the seventh connecting part comprises an end connected to the connecting rod, and another end connected to the multiple arrays of biased electrodes;
two ends of the third suspension plate are suspended and supported in the vacuum cavity by means of the third suspension beam; the third suspension plate is provided with an accommodation cavity and the multiple arrays of HIN electrodes; the multiple arrays of HIN electrodes are arranged two opposite sides of the accommodation cavity; and a respective one of fourth gaps is formed between any two adjacent arrays of the multiple arrays of HIN electrodes;
the multiple arrays of biased electrodes one-to-one correspond to and extend into the fourth gaps; and
the capacitive sensing structure comprises fifth sensing moving electrodes and fifth sensing static electrodes accommodated in the accommodation cavity; two ends of the fifth sensing moving electrodes are fixed to a wall surface of the accommodation cavity moving synchronously with the third suspension plate; the fourth sensing static electrodes are supported on the base plate by means of a support; the fourth sensing static electrodes and the fourth sensing moving electrodes are spatially separated and cross each other.