公开(公告)号：US20210409873A1

公开(公告)日：2021-12-30

申请号：US17013838

申请日：2020-09-07

Applicant: MERRY ELECTRONICS (SHENZHEN) CO., LTD.

Inventor： Kai-Yu JIANG ,  Jen-Yi CHEN ,  Yueh-Kang LEE

IPC: H04R19/04

Abstract: A microphone structure includes a backplate, a diaphragm, a sidewall and at least one airflow retaining wall. The backplate has a plurality of through holes. The diaphragm has at least one slot. The sidewall is located between the backplate and the diaphragm such that the sidewall, the diaphragm and the backplate collectively define a chamber. The at least one airflow retaining wall protrudes from the backplate and is located within the chamber. The airflow retaining wall is positioned between the through holes and the slot, and has an uneven width.

公开(公告)号：US20200177996A1

公开(公告)日：2020-06-04

申请号：US16452546

申请日：2019-06-26

Applicant: MERRY ELECTRONICS (SHENZHEN) CO., LTD.

Inventor： Jen-Yi CHEN ,  Yueh-Kang LEE ,  Kai-Yu JIANG ,  Chao-Sen CHANG

IPC: H04R7/04 ,  H04R17/10 ,  H04R7/16 ,  H04R1/02

Abstract: A speaker includes a circuit board, a peripheral wall, a diaphragm, at least one support member and at least one piezoelectric actuator. The peripheral wall is located on a surface of the circuit board. The diaphragm has an outer boundary attached to the peripheral wall. The diaphragm, the peripheral wall and the circuit board collectively form a chamber. The at least one support member protrudes from the surface of the circuit board and is located within the chamber. The at least one piezoelectric actuator is located on a top of the at least one support member and electrically driven to cause a vibration of the diaphragm under applied electrical bias.

公开(公告)号：US20200092655A1

公开(公告)日：2020-03-19

申请号：US16297725

申请日：2019-03-11

Applicant: MERRY ELECTRONICS (SHENZHEN) CO., LTD.

Inventor： Kai-Yu JIANG ,  Jen-Yi CHEN ,  Vel Sankar RAMACHANDRAN

IPC: H04R17/00 ,  H01L41/09 ,  H01L41/18 ,  B81B3/00 ,  H04R7/16

Abstract: A speaker includes a diaphragm and a MEMS actuator. The MEMS actuator includes a coupling member attached to the diaphragm and at least one closed cantilever ring that is surrounded around and connected to the coupling member by plural first bridge members, wherein the closed cantilever ring is configured to be electrically-biased to cause an axial movement of the coupling member and the diaphragm.