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US 2020/0092655 A1Published application
Speaker and mems actuator thereof
AssigneeMerry Electronics(Shenzhen) Co., Ltd.
InventorsKai-Yu JIANG, Jen-Yi CHEN, Vel Sankar RAMACHANDRAN
Life of this patent
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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.
Claims15
A microelectromechanical system (MEMS) actuator comprising:
- a flat-sheet component comprising a coupling member and a first closed cantilever ring that is surrounded around and spaced from the coupling member, plural first bridge members are connected between the coupling member and the first closed cantilever ring, wherein the first closed cantilever ring has plural discontinuous first piezoelectric material sections, the plural discontinuous first piezoelectric material sections are configured to be electrically-biased to bend towards a normal direction of the flat-sheet component.
A speaker comprising:
- a diaphragm;
- and
- a MEMS actuator comprising a coupling member attached to the diaphragm and at least one dosed cantilever ring that is surrounded around and spaced from to the coupling member, plural bridge members are connected between the coupling member and the closed cantilever ring, wherein the closed cantilever ring is configured to be electrically-biased to generate an axial movement of the coupling member and the diaphragm.
Dependencies are inferred from the claim text.