JP3509447B2 - Voice input device - Google Patents

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 a sound by a microphone (hereinafter referred to as a microphone), and particularly, a video camera and a camera part in which the operation vibration of the video part and the camera part is emphasized in consideration of small size and thinness. It has a stronger structure.

[0002]

2. Description of the Related Art In recent years, there has been a remarkable spread of video cameras, and along with this, in the market, video cameras that are frequently used outdoors are required to be small and lightweight 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 also a great problem that the audio input device must be configured so as not to be easily input to the operation vibration of the video unit and the camera unit in the video camera in accordance with the downsizing of the video camera.

An example of a video camera as a conventional audio input device will be described below. FIG. 3 is a plan view, front view, and right side cross-sectional view of a conventional voice input device. In FIG.
Reference numeral 101 is a housing. A frame 103 is fixed to the housing 101. Reference numeral 104 is an optical drive unit,
It is fixed to. Reference numeral 105 denotes a microphone P plate having a microphone circuit, and screws 1 are provided on the frame 103 like the optical driving unit 104.
It is fixed at 08. Reference numeral 106 denotes an electret condenser microphone (hereinafter referred to as “E.
C. (Omitted for M), the damper rubber 102 is press-fitted and held. C. M106a leads to microphone P
It is connected to the board 105. The damper rubber 102 has
The vibration generated from the inside of the device such as the optical drive unit 104 is detected by the E. C. Vibration absorber 102 so that it is not 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 porous sheet metal, synthetic resin, or wire mesh as is well known. C. It protects M106.

[0004]

However, in the structure 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. C. M10
6a through the lead wire of E. C. It is configured to be transmitted to M106.

The vibration of the optical drive unit 104 causes E. C. M
106, the 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, the damper rubber 102 is provided with "U" as shown in FIG.
The V-shaped vibration absorbing portion 102a is provided in an annular shape, and E. C. M
A space 109 was required between the frame 103 and the microphone P plate 105 in order to reduce the vibration transmitted to the lead wire of the 106a.

The conventional voice input device becomes large because the vibration absorbing portion 102a of the damper rubber 102 and the space 109 have to be provided, which is a big problem for downsizing the video camera. An object of the present invention is to solve this problem and to provide a small-sized voice input device capable of achieving downsizing of equipment such as a video camera equipped with the voice input device.

[0007]

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

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

[0009]

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

According to a second aspect of the present invention, a flange portion sandwiched between the housing and the frame is provided on the outer circumference of the gel damper rubber. C. Since the voice input device composed of M and the microphone P plate can be fixed so as to be hung on the casing and the frame by the flange portion of the gel damper rubber, the vibration of the optical driving unit in the device can be suppressed. Is E. C. It is possible to prevent the noise from being transmitted to the M, and it is possible to prevent the deterioration of the S / N characteristics of the microphone, which is smaller than the conventional one.

(Embodiment 1) An embodiment of the invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a cross-sectional view of the voice input device of the present invention in plan, front, right side, 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 that picks up sound outside the device. C. In M, in place of the lead wire connection type shown in the conventional example, the lead portion 6a is provided, and the lead portion 6a is inserted into the hole of the microphone P plate 5 which is the substrate and directly fixed by soldering. 2 is a gel-like damper rubber, and C.
The vibration of the projection portion 2a that holds M6 and that can closely fix the microphone P plate 5 on the same plane and the vibration of the optical driving portion 4 C. M6 and the microphone P have a flange portion 2b that can be absorbed so as not to be transmitted to the P plate 5 and can be pressed and fixed between the housing 1 and the frame 3. 7 is a MICNET, which is the same as the conventional example. C. It protects M6.

In the voice input device configured as described above, the E. C. Since M6 is directly soldered and fixed to the microphone P plate 5, the space for the lead wire as in the conventional case (see FIG. 3).
109) is unnecessary and can be made thinner than the conventional one, and since the vibration of the optical driving unit 4 is absorbed by the flange portion 2b of the gel damper rubber 2, the gel damper rubber 2
The vibration absorbing shape itself (that is, the vibration absorbing portion 102 of FIG. 3)
Since a) is not necessary and the surface area of the gel damper rubber 2 can be reduced, a small and thin voice input device can be realized.

In the above description of the embodiments, an example in which a video camera is mounted as a voice input device has been given, but other electronic equipment such as information electronic equipment such as a mobile phone, stereo, radio cassette equipment. It can also be applied to audio devices such as. Also, as a microphone, E. C. Although M is taken as an example, it goes without saying that the present invention is not limited to this. Furthermore, E. C. In M6, the lead portion 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 a small-sized audio input device having excellent recording performance, and it is possible to obtain an excellent effect that a device such as a video camera having the same can be downsized.

[Brief description of drawings]

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

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

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

[Explanation of symbols]

1 Case 2 Gel-like damper rubber 2a Projection 2b Flange 3 Frame 4 Optical drive 5 Microphone P board 6 Electret condenser microphone (EC
M) 6a Lead 7 Micronet

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04R 1/02 108 H04R 1/02 107 H04N 5/225

Claims (2)

(57) [Claims] 1. A gel-like 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 protrusion for tightly fixing the substrate to the 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 the outer circumference of the gel rubber damper.