JPH10210584A - Voice input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent deterioration in the S/N by emphasizing small size and thin profile of the voice input device that receives a sound with a microphone and preventing operation and vibration of other unit from being delivered. SOLUTION: Sets of E.C.M. 6 fixed to a microphone P plate 5 and a gel damper rubber 2 having a holes to which the E.C.M. 6 are press-fit and having a projection 2a to closely fix a board to a bottom side are provided, and a flange 2b is provided around the damper rubber 2 to clip and fix the E.C.M. 6 and the microphone P plate 5 to a case 1 and a frame 3. Thus, the voice input device with excellent recording performance is provided with a simple configuration and an apparatus such as a video camera on which the voice input device is mounted is made small.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio input device for inputting sound using a microphone (hereinafter abbreviated as "microphone"). It has a structure that is strong against

[0002]

2. Description of the Related Art In recent years, the spread of video cameras has been remarkable, and accordingly, in the market, video cameras which are frequently used outdoors need to be reduced in size and weight in order to improve portability and operability. In order to achieve this reduction in size and weight, downsizing of the voice input device is an important issue.
Further, it is a major problem that the audio input device must be configured to be hard to be input to the operation vibration of the video unit and the camera unit in the video camera in accordance with the miniaturization of the video camera.

[0003] An example of a video camera as a conventional voice input device will be described below. FIG. 3 is a plan view, a front view, and a right side sectional view of a conventional voice input device. In FIG.
101 is a housing. A frame 103 is fixed to the housing 101. 104, an optical drive unit;
It is fixed to. Reference numeral 105 denotes a microphone P plate having a microphone circuit.
08 is fixed. Reference numeral 106 denotes an electret condenser microphone (hereinafter referred to as “E.
C. M), is pressed into the damper rubber 102 and held. C. Microphone P with lead wire of M106a
It is connected to a plate 105. In the damper rubber 102,
Vibration generated from inside the device such as the optical drive unit 104 is referred to as E.C. C. Vibration absorber 102 so as not to be transmitted to M106
a, and a flange portion 102b that can be pressed and fixed between the housing 101 and the frame 103. Reference numeral 107 denotes a microphone net, which is made of a perforated sheet metal, a synthetic resin, or a wire mesh as is well known. C. It protects M106.

[0004]

However, in the configuration of the above-mentioned conventional example, the vibration generated by the optical driving unit 104 is transmitted from the frame 103 to the microphone P plate 105, E.P. C. M10
6a through the lead wire. C. The structure is transmitted to M106.

[0005] The vibration of the optical drive unit 104 is caused by E. C. M
106, E. C. M106 replaces this vibration with sound and inputs it, so noise due to vibration increases and S / N
The characteristics deteriorate. Conventionally, in order to prevent the deterioration of the S / N characteristic, as shown in FIG.
A vibration absorbing portion 102a having a U shape is provided in an annular shape. C. M
A space 109 was required between the frame 103 and the microphone P plate 105 to reduce the vibration transmitted to the lead wire 106a.

The conventional voice input device becomes large because the vibration absorbing portion 102a of the damper rubber 102 and the space 109 must be provided, and this has been a major problem in miniaturizing a video camera. An object of the present invention is to solve this problem and to provide a small-sized audio input device capable of achieving miniaturization of a device such as a video camera equipped with the audio input device.

[0007]

In order to achieve this object, a voice input device according to the present invention comprises a microphone component fixed to a substrate, a hole for press-fitting and holding the microphone component, and a projection for closely fixing the substrate to a bottom surface. And a gel-like damper rubber having a gel portion.
C. M and a microphone P plate can be fixed by being sandwiched between a housing and a frame.

[0008] With this configuration, a small, thin, and S
It is possible to provide a voice input device having good / N characteristics.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention provides a substrate having a circuit, a microphone component fixed to the substrate, a hole for press-fitting and holding the microphone component, and a substrate closely fixed to the bottom surface. And a gel-like damper rubber having a protruding portion. C. Since the M and the microphone P plate can be closely adhered and fixed on the same plane, it is possible to provide a thinner voice input device than before.

The invention according to claim 2 is characterized in that a flange portion sandwiched between the housing and the frame is provided on the outer periphery of the gel-like damper rubber. C. M and a voice input device composed of a microphone P plate can be fixed so as to be suspended from a housing or a frame by a flange portion of a gel-like damper rubber. Is E. C. M can be prevented from being transmitted to M, and it is possible to prevent the deterioration of the S / N characteristics of the microphone in comparison with the related art.

(Embodiment 1) An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a plane, front, right side sectional view of a voice input device of the present invention, and FIG.
It is a schematic diagram of a configuration of a voice input device of the present invention. 1 and 2
, 6 is a microphone component for collecting sound outside the device. C. At M, in place of the lead wire connection type shown in the conventional example, a lead portion 6a is provided, and the lead portion 6a is inserted into a hole of the microphone P plate 5 as a substrate and directly soldered and fixed. 2 is a gel-like damper rubber; C.
M6 is held, and the projection 2a which can fix the microphone P plate 5 in close contact on the same plane; C. M6 has a flange portion 2b which can be absorbed so as not to be transmitted to the microphone P plate 5 and which can be pressed and fixed between the housing 1 and the frame 3. Reference numeral 7 denotes a microphone net. C. It protects M6.

In the voice input device configured as described above, the E.I. C. M6 is directly soldered and fixed to the microphone P plate 5, so that the space for the lead wire as in the prior art (FIG.
(109) is unnecessary and can be made thinner than the conventional one, and the vibration of the optical drive unit 4 is absorbed by the flange part 2b of the gel-like damper rubber 2, so that the gel-like damper rubber 2
The vibration absorbing portion 102 (ie, the vibration absorbing portion 102 in FIG.
Since a) is unnecessary and the surface area of the gel-like damper rubber 2 can be reduced, a small and thin voice input device can be realized.

In the above description of the embodiment, an example is described in which the audio input device is mounted on a video camera. However, other electronic devices, for example, information electronic devices such as mobile phones, stereos, and radio cassette devices. And the like. Also, E.I. C. Although M is taken as an example, it is needless to say that the invention is not necessarily limited to this. Further, E. C. In M6, the lead 6a is inserted into the hole of the microphone P plate 5 and fixed by soldering. C. The same effect can be obtained with M.

[0014]

As described above, the present invention has a simple structure,
It is possible to provide an audio input device that is small and has good recording performance, and an excellent effect that the size of a device such as a video camera equipped with the audio input device can be reduced can be obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view of a plane, front, and right side of a voice input device according to a first embodiment of the present invention.

FIG. 2 is a schematic structural diagram of the same.

FIG. 3 is a plan view, a front view, and a right side sectional view of a conventional voice input device.

[Explanation of symbols]

Reference Signs List 1 housing 2 gel-like damper rubber 2a protrusion 2b flange 3 frame 4 optical drive 5 microphone P plate 6 electret condenser microphone (EC.
M) 6a Lead part 7 Microphone net

Claims (2)

[Claims] A gel damper rubber having a substrate having a circuit, a microphone component fixed to the substrate, a hole for press-fitting and holding the microphone component, and a projection for tightly fixing the substrate to a bottom surface. A voice input device comprising: 2. The voice input device according to claim 1, wherein a flange portion sandwiched between the housing and the frame is provided on an outer periphery of the gel-like damper rubber.