Microphone and assembly method thereof

An assembly method and microphone technology, applied in the field of acoustics and electricity, can solve the problems of large internal space of the microphone, small acoustic cavity behind the microphone, complicated assembly process, etc., and achieve the effects of simple assembly process, simplified assembly process, and reduced assembly links.

Active Publication Date: 2014-04-23
WEIFANG GOERTEK MICROELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The assembly process is complicated and the cost is high;
[0005] 2. The internal space of the microphone occupied by the cavity is relatively large, resulting in a small rear cavity of the microphone and low sensitivity

Method used

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  • Microphone and assembly method thereof
  • Microphone and assembly method thereof
  • Microphone and assembly method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 2 As shown, a microphone includes a circuit board 10 and a shell 20b with an open end. The open end of the shell 20b and the circuit board 10 are integrated and packaged. It is defined that the side of the circuit board 10 located inside the package is the inside, and the side located outside the package is the outside; the side of the housing 20b located inside the package is the inside, and the side located outside the package is the outside. The inner side of the circuit board 10 is provided with a number of electronic components 90, and the inner side of the housing 20b is provided with a diaphragm 70, a gasket 60 and an electrode plate 50 in sequence. The electrode plate 50 and the circuit board 10 are electrically connected by a conductive post 40, the conductive post 40 It is fixed and electrically connected with the circuit board 10 by the conductive glue 80, and the conductive glue can absorb the tolerances formed during the processing of various ...

Embodiment 2

[0041] Such as image 3 As shown, this embodiment is basically the same as the first embodiment, and the difference lies in:

[0042] At least two bosses 24 are provided on the inner side wall of the housing 20c, and the bosses 24 are equally spaced at the same height of the side wall of the housing 20c. Each boss 24 is arranged at the edge of the insulating cavity 34 close to the circuit board 10, and is used to restrain the insulating cavity 34 from biasing or moving in the direction of the circuit board 10, so as to ensure the stable position of the electrode plate 50. This implementation In the manner, even if the insulating cavity 34 is not fixedly connected to the gasket 60, the electrode plate 50 will not be misaligned.

[0043] The preferred solution is to provide four bosses 24, one on each side wall of the housing 20c, which can more effectively ensure that the position of the insulating cavity 34 is stable without offset or misalignment, thereby more effectively ensuring...

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PUM

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Abstract

The invention discloses a microphone and an assembly method thereof, and relates to the technical field of electroacoustics. The microphone comprises a circuit board and a shell which are encapsulated into a whole; a space defined by the circuit board and the shell is sequentially provided with a film, a spacer and a polar plate; the film is close to the bottom of the shell; the polar plate is electrically connected with the circuit board by virtue of a conductive post; the microphone is further provided with an annular insulation cavity; the insulation cavity surrounds the periphery of the polar plate; one end of the insulation cavity is connected with the spacer; the other end of the insulation cavity is provided with a boss part which extends to the center of the insulation cavity; the boss part is positioned between the polar plate and the circuit board so as to restrain the polar plate. The microphone and the assembly method provided by the invention solve the technical problems of complicated assembly process and low sensitivity of a microphone in the prior art. The assemble process of the microphone provided by the invention is simple and convenient, the cost is low, and the sensitivity is high.

Description

Technical field [0001] The present invention relates to the technical field of sound and electricity, in particular to a microphone and an assembly method thereof. Background technique [0002] A microphone is an energy converter that converts sound signals into electrical signals. With the rapid development of electronic technology in recent years, microphones have also been widely used in portable electronic devices. [0003] Such as figure 1 As shown, the microphone in the prior art includes a circuit board 10 and a housing 20a that are packaged as a whole. The space enclosed by the circuit board 10 and the housing 20a contains a diaphragm 70, a gasket 60, an electrode plate 50, and a circuit board. For the electronic components 90 on 10, the electrode plate 50 and the circuit board 10 are electrically connected by a conductive column 40, a first cavity 30 is provided around the electrode plate 50 and the housing 20a, and the first cavity 30 is used for the electrode plate 50 I...

Claims

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Application Information

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IPC IPC(8): H04R19/04H04R31/00
Inventor 王友周天铎林伟李忠凯
Owner WEIFANG GOERTEK MICROELECTRONICS CO LTD
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