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Microphone unit

A technology for microphones and sound holes, which is applied to electrostatic transducer microphones, transducer shells/cabinets/brackets, frequency/direction characteristic devices, etc., which can solve the problem of high manufacturing costs of microphone units, burdens on operations and product management Larger and other problems, to achieve the effect of reduced manufacturing cost and good versatility

Inactive Publication Date: 2011-06-08
FUNAI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, as it is now, for the microphone unit, if the microphone unit of the structure mounted on the upper surface side of the mounting substrate and the microphone unit of the structure mounted on the lower surface side of the mounting substrate are treated as different products production, the burden on operations and product management will increase
As a result, there is a problem that the manufacturing cost of the microphone unit becomes high

Method used

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  • Microphone unit
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Examples

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Embodiment Construction

[0036]Hereinafter, embodiments of a microphone unit to which the present invention is applied will be described in detail with reference to the drawings.

[0037] First, refer to Figure 1A , Figure 1B , figure 2 , image 3 and Figure 4 A schematic configuration of the microphone unit of the present embodiment will be described. Figure 1A and Figure 1B is a schematic perspective view showing the external configuration of the microphone unit of the present embodiment, Figure 1A It is a figure viewed obliquely from above, Figure 1B It is a figure seen from obliquely below. figure 2 yes Figure 1A A schematic cross-sectional view of the A-A position. image 3 It is an exploded perspective view showing the structure of the microphone unit of this embodiment. Figure 4 It is a schematic plan view showing the configuration of a MEMS (Micro Electro Mechanical System: Micro Electro Mechanical System) chip included in the microphone unit of the present embodiment.

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PUM

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Abstract

The microphone unit of the present invention comprises an electro-acoustic converter for converting an acoustic signal to an electric signal, the converter having a diaphragm displaced by acoustic pressure; and a housing provided with an accommodation space for accommodating the electro-acoustic converter, and with an acoustic path for guiding outside sound from an acoustic hole to the diaphragm. An external-connection electrode having the same function is formed on a first external surface belonging to the housing and having the acoustic hole, and on a second external surface on the side opposite the first external surface of the housing.

Description

technical field [0001] The present invention relates to a microphone unit having a function of converting an input sound into an electrical signal and outputting it. Background technique [0002] Conventionally, the microphone unit has been used in voice input devices including, for example, voice communication equipment such as mobile phones and walkie-talkies, voice authentication systems, and other information processing systems that utilize techniques for analyzing input voice, or recording equipment ( For example, refer to Patent Document 1). When a microphone unit is used in a voice input device, the microphone unit may be mounted on the upper side of the mounting substrate of the voice input device, and may be mounted on the lower side (for example, refer to Patent Document 2). [0003] Figure 11 It is a sectional view showing a conventional structural example when the microphone unit is mounted on the upper surface side of the mounting board. exist Figure 11 In t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/06
CPCH04R1/06H04R1/02H04R1/38H04R1/04H04R19/04
Inventor 田中史记堀边隆介梅田修志猪田岳司
Owner FUNAI ELECTRIC CO LTD