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Miniature microphone dustproof device and mems microphone

A dust-proof device and microphone technology, which is applied in the direction of sensors, electrostatic transducers, microphones, electrical components, etc., can solve problems such as irregular buckling of the net part, and achieve the effect of preventing deformation and preventing irregular deformation

Active Publication Date: 2021-10-01
GOERTEK MICROELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to provide a micro-microphone dust-proof device to solve the problem of irregular buckling of the mesh portion on the existing micro-microphone dust-proof device under high temperature environment

Method used

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  • Miniature microphone dustproof device and mems microphone
  • Miniature microphone dustproof device and mems microphone
  • Miniature microphone dustproof device and mems microphone

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Embodiment Construction

[0031] In order to describe the structure of the micro-microphone dust-proof device of the present invention in detail, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] figure 1 Shows the front-view explosion structure of the miniature microphone dust-proof device provided by the embodiment of the present invention; figure 2 Shows the front view cross-sectional structure of the miniature microphone dust-proof device provided by the embodiment of the present invention; image 3 The top view structure of the filter screen provided by the embodiment of the present invention is shown; Figure 4 It shows the top view enlarged structure of the filter screen provided by the embodiment of the present invention; Figure 1 to Figure 4 Commonly shown, the miniature microphone dust-proof device provided by the present invention includes a supporting carrier 11 and a filter membrane 12 arranged on one s...

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Abstract

The present invention provides a micro-microphone dust-proof device and a MEMS microphone, comprising a support carrier and a filter membrane arranged on one side of the support carrier; the filter membrane includes a fixing part and a filter net arranged inside the fixing part; The filter screen includes a central part, a partition part spirally arranged around the central part, and a first connection part connecting the central part and the partition part; wherein, the stiffness value of the first connection part is smaller than the Stiffness values ​​of the central part and the partition part. The above-mentioned invention can effectively solve the problem of irregular buckling of the net part on the existing miniature microphone dustproof device under high temperature environment.

Description

technical field [0001] The invention relates to the technical field of micro-microphone dust-proof, more specifically, to a micro-microphone dust-proof device and a MEMS microphone. Background technique [0002] In order to prevent the chip inside the miniature microphone from being affected by external powder, particles, and moisture, thereby reducing the service life of the miniature microphone, it is usually necessary to design a dust-proof design for the miniature microphone at the connection between the inside of the miniature microphone and the outside world (such as the sound hole). The device separates the micro-microphone chip from the external environment through the micro-microphone dust-proof device to protect the micro-microphone chip. [0003] However, the traditional miniature microphone dust-proof device usually includes a mesh part and a carrier part, and the two parts are made of different materials. Because the thickness, mechanical properties and thermal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R19/04
CPCH04R19/04H04R2201/003
Inventor 游振江佐野豊林育菁
Owner GOERTEK MICROELECTRONICS CO LTD