A variable directional microphone assembly and method of making the microphone assembly

Abstract

Provided are a variable directional microphone assembly and a method of manufacturing the same, which can reduce maintenance costs by transmitting a signal through contact using a coil spring for convenient replacement of the microphone device. The assembly includes a printed circuit board including a connection terminal provided to a surface thereof, and a semiconductor integrated circuit devicemounted to another surface thereof, a microphone body including a first mounting space for mounting the semiconductor integrated circuit device, two second mounting spaces, and a coil spring insertion hole, the first mounting space being provided to a surface of the microphone body, the second mounting spaces being provided to another surface of the microphone body, two microphone devices mountedto the second mounting spaces, the insertion hole allowing the microphone device to be in contact with the printed circuit board, a coil spring inserted into the coil spring insertion hole to electrically connect the microphone device to the printed circuit board, and a case including a sound hole in a bottom thereof and configured to fix an assembly by inserting the microphone body coupled with the microphone devices and the semiconductor integrated circuit device into the case and then curling the case.

Description

technical field [0001] The present invention relates to a variable directivity microphone. More specifically, it relates to a variable directivity microphone assembly and a method for manufacturing the same. The microphone element is mounted compactly by using the microphone main body to achieve miniaturization. Way, signal transmission, easy replacement of microphone components, reducing maintenance costs. Background technique [0002] Generally, microphones are divided into non-directional (omnidirectional) microphones and directional microphones according to their directional characteristics, and directional microphones are further divided into bidirectional (Bi-directional) microphones and unidirectional (Uni-directional) microphones. For a bidirectional microphone, it fully reproduces the front and rear incident sounds, and shows an attenuation characteristic for the sound incident from the side. The polar pattern for the sound source is shown in the shape of "8", and t...

AI Technical Summary

Problems solved by technology

[0004] In the case of using two omnidirectional microphone elements to manufacture a variable directivity microphone assembly, conventionally, two omnidirectional microphone elements and a semiconductor integrated circuit element are directly mounted on a printed circuit board, thereby reducing There is a problem that the entire substrate needs to be replaced during maintenance, and there is a problem of increased cost

In addition, the mechanical structure that complements the complete audio characteristics is still insufficient in the past, and there are problems such as deterioration of sound quality and difficulty in miniaturization

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