JP2626534B2 - Transmission structure of electronic equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmitting unit structure, and more particularly to a transmitting unit structure used for electronic equipment such as a telephone set and a wireless communication device.

[0002]

2. Description of the Related Art FIG. 7 shows a structure of a transmitting section used in a conventional telephone, radio communication device and the like. In FIG. 1, the conventional transmitting section structure includes an upper case 1 having a sound hole 1 a, a microphone 2 disposed directly below the sound hole 1 a, a holder 3 holding the microphone 2 and mounted on the upper case 1. , And a lower case 4 joined to the upper case 1 to form a housing of the apparatus.

[0003]

In this conventional transmitting part structure, since the microphone 2 is disposed directly below the sound hole 1a, the breath caused by utterance or breathing directly hits the microphone 2, causing a noise such as a wind noise. Becomes This not only degrades the sound quality and impairs the clarity of the call, but also causes discomfort to the listener.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a communication unit structure which reduces noise generated when a breath caused by utterance or breathing directly hits a microphone, improves clarity of a call, and does not cause discomfort to a listener. Is to do.

[0005]

Means for Solving the Problems A transmitting part structure of an electronic device according to the present invention has a case having a sound hole and a microphone mounting part, and forms a sound path by being in close contact with the case. The microphone includes a holder and a microphone mounted in the microphone mounting portion.

[0006] A transmission unit structure of an electronic device according to the present invention includes a case having a sound hole, a microphone, a holder having a microphone, and a printed circuit board disposed in the case. The sound path is formed by the close contact with the printed circuit board . In addition,
The transmitting part structure of Ming's electronic device is the microphone in the holder.
The lophone is characterized in that its axis is arranged parallel to the axis of the sound hole .

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a first embodiment of the present invention, and FIG. 2 is a sectional view of the first embodiment along AA.

The transmitting section structure in this embodiment includes an upper case 1 having a first sound hole 1a and a rib 1b to which the holder 3 is attached, a groove 3a which is in close contact with the upper case 1 and forms a sound path, and 5, a holder 3 having a fixing rib 3b and a microphone mounting portion 3c, and being guided by the rib 1b of the upper case 1 and closely attached to the upper case 1 so that the groove 3a forms a sound path; The microphone 2 has a terminal 2a and is attached to the microphone attachment portion 3c (the microphone 2 of this embodiment uses a small microphone such as a condenser), a rib 4a for pressing the holder 3 from the back, and the back of the microphone 2. The second sound hole 4b in the part
A lower case 4 fitted and fixed to the upper case 1, a hole 5a engaging with the rib 3b of the holder 3, and the microphone 2
And a printed circuit board 5 which is accommodated and fixed in a box formed by the upper case 1 and the lower case 4.

The holder 3 is mounted on the rib 1b of the upper case 1 so that the sound hole 1a communicates with the groove 3a. The microphone 2 is mounted on the microphone mounting portion 3c of the holder 3. Thus, a sound path from the sound hole 1a to the microphone 2 via the groove 3a is formed, and the sound entered from the sound hole 1a is guided to the microphone 2 by this sound path.

The lower case 4 is provided with a holder 3
Is pressed from the back of the microphone mounting portion 3c, and the upper case 1
In close contact. Further, when the microphone is a directional microphone, the second sound hole 4b is arranged in the lower case. The printed circuit board 5 is integrated with the holder 3 by the engagement of the hole 5a and the rib 3b of the holder 3, and the terminal 2 of the microphone 2
a is connected to the electric circuit by being connected to the terminal 5b arranged on the printed circuit board 5.

FIG. 3 is an exploded perspective view of a second embodiment of the present invention, and FIG. 4 is a sectional view taken along line BB of the second embodiment.

The transmitting section structure in this embodiment has a groove that forms a sound path between the upper case 1 and the holder 3, not the holder 3, but the upper case 1.

An upper case 1 having a first sound hole 1a, a rib 1b on which the holder 3 is mounted, and a groove 1c which is in close contact with the holder 3 and forms a sound path, and a fixing rib 3 for fixing the printed board 5
b and a microphone mounting portion 3c, and are guided to the rib 1b of the upper case 1 so that the groove 1c forms a sound path.
A microphone 3 having a terminal 2a for electrical connection and attached to a microphone mounting portion 3c (a microphone of this embodiment uses a small microphone such as a condenser); A lower case 4 fitted with the upper case 1 and having a rib 4a pressed from above and a second sound hole 4b provided in a portion facing the back surface of the microphone 3, and engaging with the rib 3b of the holder 3. The printed circuit board 5 has a hole 5a to be connected and a terminal 5b to which the terminal 2a of the microphone 2 is connected, and is housed and fixed in a box formed by the upper case 1 and the lower case 4.

The holder 3 has a groove 1c communicating with the sound hole 1a.
Is attached to the rib 1b of the upper case 1 so as to be in close contact with the upper case 1. The microphone 2 is mounted on the microphone mounting portion 3c of the holder 3. Thereby, a sound path from the sound hole 1a to the microphone 2 via the groove 1c is formed, and the sound entered from the sound hole 1a is guided to the microphone 2 by this sound path.

The lower case 4 is provided with a rib
Is pressed from the back of the microphone mounting portion 3c, and the upper case 1
Adhered to. Further, when the microphone 2 is a directional microphone, the second sound hole 4b is arranged in the lower case.
The printed circuit board 5 is integrated with the holder 3 by the engagement of the hole 5a and the rib 3b of the holder 3, and the terminal 2a of the microphone 2 is connected to the electric circuit by being connected to the terminal 5b arranged on the printed circuit board. Is done.

FIG. 5 is an exploded perspective view of a third embodiment of the present invention, and FIG. 6 is a cross-sectional view taken along the line CC of the third embodiment.

In the transmitting section structure of the present embodiment, the holder 3 and the printed circuit board 5 constitute a sound path.

The upper case having the ribs 1b for pressing the first sound hole 1a and the holder 3 against the printed circuit board 5 to bring the holder 3 into close contact with the printed circuit board 5 has the same position as the first sound hole a. A third sound hole 3b, a groove 3a which is in close contact with the printed circuit board 5 and forms a sound path, and a rib 3 for fixing to the printed circuit board 5
b and a holder 3 having a microphone mounting portion 3c;
It has a terminal 2a for electrical connection, and a microphone mounting portion 3c
(A microphone of this embodiment uses a small microphone such as a condenser)
A rib 4a for pressing the holder 3 from the back and a second sound hole 4 provided in a portion facing the back of the microphone 3
b, and a lower case 4 fitted and fixed to the upper case;
The upper case 1 and the lower case have a hole 5a that engages with the rib 3b of the holder 3 and a terminal 5b to which the terminal 2a of the microphone 2 is connected. The groove 3a forms a sound path when the holder 3 comes into close contact. 4 and a printed circuit board 5 housed and fixed in a box composed of

The holder 3 is arranged such that the first sound hole 1a communicates with the second sound hole 3d and the groove 3a. The microphone 2 is mounted on the microphone mounting portion 3c of the holder 3. As a result, a sound path from the first sound hole 1a to the microphone 2 via the second sound hole 3d and the groove 3a is formed, and the sound entered from the sound hole 1a is guided to the microphone 2 by this sound path.

Further, when the microphone 2 is a directional microphone, a second sound hole 4b is arranged in the lower case 4, and a sound path from the back surface of the microphone mounting portion 3c of the holder 3 to the second sound hole is provided by the rib 4a. Is configured. Printed circuit board 5
The hole 5a and the rib 3b of the holder 3 are engaged with each other to be integrated with the holder 3, and are connected to an electric circuit by connecting the terminal 2a of the microphone to the terminal 5b arranged on the printed circuit board.

[0021]

As described above, according to the present invention, the noise generated when the breath accompanying the utterance directly hits the microphone is reduced by transmitting the voice uttered from a person through the sound path to the microphone. In addition, it has the effect of improving the clarity of the call and preventing the listener from feeling uncomfortable.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an exploded perspective view of a second embodiment of the present invention.

FIG. 4 is a sectional view taken along line BB of FIG. 3;

FIG. 5 is an exploded perspective view of a third embodiment of the present invention.

FIG. 6 is a sectional view taken along the line CC of FIG. 5;

FIG. 7 is a perspective view of a conventional communication unit structure.

[Explanation of symbols]

 Reference Signs List 1 case 1a first sound hole 1b rib 1c groove 2 microphone 2a terminal 3 holder 3a groove 3b rib 3c microphone mounting portion 3d third sound hole 4 case 4a rib 4b second sound hole 5 printed circuit board 5a hole 5b terminal

Claims (6)

(57) [Claims] An upper case having a first sound hole;
Accommodates printed circuit board with electronic circuit arranged by engaging with case
And a microphone mounting part
The upper tongue extending from the microphone mounting part
A groove that engages with a rib of the base to form a sound path.
A holder attached to the case and the microphone
And a microphone mounted in the mounting part.
The holder is pressed from the back by the lower case.
The holder is brought into close contact with the upper case,
A sound path is formed by the tongue-shaped groove and the upper case,
The first sound hole is a groove at the tip of the tongue of the holder.
And the first sound hole
And the sound path conducts to guide sound to the microphone . 2. A rib for forming a sound path and said rib.
An upper case having a first sound hole at the tip of the recess formed.
And a pre-aligned electronic circuit arranged with the upper case.
The lower case that forms the space to accommodate the printed circuit board, and the microphone
Extending from the microphone mounting part and the microphone mounting part,
A tongue that forms a sound path in close contact with the ribs of the upper case.
A holder attached to the upper case,
From the microphone mounted inside the microphone mounting part
Is constituted by the holder is brought into close contact with the upper case are pressed from the rear by the lower case, the ho
The sound path is formed by the tongue of the rudder and the ribs of the upper case.
The connection between the first sound hole and the sound path is achieved.
And transmitting sound to the microphone . 3. An upper case having a first sound hole;
Accommodates printed circuit board with electronic circuit arranged by engaging with case
And a microphone mounting part
The pre-toned part extending from the microphone mounting part
A groove that forms a sound path in close contact with the printed circuit board.
It has a third sound hole at the tip of the
And a microphone holder
Microphone, and the holder is
Pressed by the upper case to adhere to the printed circuit board
By doing so, the groove of the tongue of the holder and the pre-
A sound path is formed by the sound board, and the first sound hole is located in front of the sound path.
By being arranged at a position conducting with the third sound hole,
The first sound hole is electrically connected to the sound path, and the first sound hole is connected to the microphone.
A transmitter structure of an electronic device characterized by guiding sound . 4. The holder is mounted on the printed circuit board.
And the printed circuit board is in front of the upper case.
The holder is fixed by the lower case,
The upper case closely contacts the upper case to form a sound path.
3. The transmission unit structure of an electronic device according to claim 1, wherein 5. A method according to claim 1, characterized in that a second sound hole at a portion facing the rear of the microphone presses the holder of the lower case, claim 2, claim 3 or
A transmission unit structure for an electronic device according to claim 4 . 6. The microphone in said holder has its axis
Are arranged parallel to the axis of the first sound hole, and the microphone
The electronic device according to any one of claims 1, 2, 3, 4, and 5 , wherein the axis of the lophone is arranged in parallel with the axis of the second sound hole. Transmitter structure.