KR200199757Y1 - Automatic microphone system for portable radio telephone - Google Patents

Abstract

The present invention relates to an automatic in / out microphone apparatus of a mobile phone, wherein the automatic in / out microphone apparatus installed at a lower side of a mobile phone body has a motor shaft, and a DC small motor as a power source; A driving roller installed on the motor shaft to receive power; A driven roller installed at a position facing the driving roller; A bracket having a bottom surface, having a fastening end for being fixed to the motor at a predetermined position of the bottom surface, and having a free end bent to install the driven roller on the bottom surface; Since it is comprised by the microphone apparatus which draws in or draws out by the contact of the said drive roller and a driven roller, it is convenient to use and it is advantageous for miniaturization.

Description

Automatic in / out microphone unit of mobile phone

The present invention relates to a mobile phone including a CT-2, HHP, PCS, and the like, and more particularly, to a mobile phone equipped with an automatic in / out microphone device.

As shown in FIG. 1, a typical mobile phone coexists with a bar type, a flip type and a holder type. In the figure, it is a bar type mobile phone.

The antenna unit 110 (antenna unit) is located at the top of the mobile phone main body 10, the ear piece 120 (ear piece) including a speaker (speaker) is located below the antenna unit, the lower portion of the LCD unit (LCD unit) Windows 130 is located. A key pad 140 including a numeric key, a function key, and the like is mounted below the LCD window, and a microphone unit 150 is installed at the bottom of the mobile phone main body 10.

The ear piece 120 is disposed at the upper end of the main body 10 and the microphone device 150 is disposed at the lower end of the main body 10 to maintain the communication distance (the normal distance between the user's ears and the mouth) between the ear piece 120 and the microphone device 150.

The distance between the conventional earpiece 120 and the microphone 150 should be between 13 and 15 cm.

However, in the conventional cellular phone structure, the main body has been a limiting factor in the miniaturization of the main body in order to maintain the communication distance between the earpiece and the microphone device. According to the user's ergonomics, the size of the main body is limited due to the limitation of the distance between the ear and the mouth. In the drawing, the bar type mobile phone is taken as an example. In the flip type mobile phone, due to the complicated hinge structure and the assembly of various parts, There are various problems such as poor assembly and unit price increase. There is a need for a mechanism capable of miniaturization, that is, reducing the overall size of the main body, while maintaining the communication distance in the bar type mobile phone.

Essentially, mobile phones must compensate for the distance between the earpiece and the microphone.

The present invention has been made to solve the above-mentioned conventional problems, the object of the present invention from the manufacturing stage, time, labor costs, manufacturing defects, various problems such as difficulty of work, the time required to assemble the terminal and the parts It provides an automatic entry / exit microphone device of a mobile phone that satisfies simplicity and realizes the required performance.

Another object of the present invention is to provide an automatic in / out microphone device of a mobile phone, which is advantageous for miniaturization of a main body.

In order to achieve the above objects, the present invention is an automatic in / out microphone device that is installed at the bottom of the mobile phone body

A DC small motor having a motor shaft and being a power source;

A driving roller installed on the motor shaft to receive power;

A driven roller installed at a position facing the driving roller;

A bracket having a bottom surface, having a fastening end for being fixed to the motor at a predetermined position of the bottom surface, and having a free end bent to install the driven roller on the bottom surface;

And a microphone device which draws in or draws out by contact between the driving roller and the driven roller.

1 is a front view showing a mobile phone according to a conventional embodiment.

Figure 2 is a partial cutaway front view showing a state in which the microphone device is drawn out of the mobile phone is installed with an automatic draw / withdrawal microphone device according to an embodiment of the present invention.

Figure 3 is a partial cutaway front view showing a state in which the microphone device is inserted in the mobile phone with the automatic draw / withdrawal microphone device according to an embodiment of the present invention.

Figure 4 is a perspective view showing an automatic in / out microphone device according to an embodiment of the present invention.

Figure 5 is a side view showing the operation of the automatic in / out microphone device according to an embodiment of the present invention

<Description of the code | symbol about the principal part of drawing>

20: microphone 30: motor

40: Bracket 201: Mike

202: tube 301,302: roller

Hereinafter, with reference to the accompanying drawings will be described in detail the most preferred embodiment of the present invention. First, in describing each of the drawings, only the same components have the same reference numerals as much as possible even if shown on different drawings. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

2 and 3 is a front view showing a mobile phone is installed with the automatic in / out microphone device according to an embodiment of the present invention. Referring to the drawings,

An antenna unit 110 (antenna unit) is located at the top of the mobile phone body 10 of the present invention, and an ear piece 120 (ear piece) including a speaker is located below the antenna device, and an LCD unit is located below the ear piece. Windows 130 has a configuration that is installed. A keypad 140 including a number key, a function key, and the like is installed below the LCD window, and an automatic in / out microphone unit 20 is installed below the keypad.

In the drawings, the present invention is limited to the bar-type mobile phone, but the automatic insertion according to the embodiment of the present invention is similarly applied to the flip-type or folder-type mobile phone. / Withdrawal microphone unit is applied. In this case, the automatic in / out microphone device may be selectively installed at the bottom right or left side of the main body 10.

The automatic draw-in / draw-out microphone device of the present invention is composed of a power source for pulling in or drawing out the microphone device 20, a power transmission means, and a means for fixing the microphone device to the power source. The motor 30 is most preferable as the power source, and the pair of long rollers 301 and 302 are most preferable as the power transmission means, and the bracket 40 having elastic force is most preferable as the fixing means.

An automatic drawing / drawing antenna device according to an embodiment of the present invention includes a single small DC motor 30 (coreless type small motor), a pair of rollers 301 and 302 that receive power from the DC motor 30, and a rotational movement of the roller. The microphone device 20 which draws in or draws out by this, and the bracket 40 which mounts the said roller 301,302 to the motor 30 are comprised.

A pair of rollers 301, 302 facing each other are fixed to the drive motor 30 by a separate bracket 40, and the motor 30 is mounted on the bottom casing frame 101 bottom 102 of the main body 10 by damping means (normal sponge or rubber), not shown. Has a configuration that is installed.

The microphone unit 20 of the present invention comprises a microphone 201 and a tube 202 electrically connected to the microphone. In addition, a stopper 203 protrudes from the end of the tube 202 to prevent the tube from being separated from the main body 10.

The tube 202 is preferably a flexible material. Therefore, the tube 202 is a component that can appropriately respond to bending or other external force. The microphone 201 also uses wire 204 to be electrically connected to the board of the body through tube 202.

Referring to Figure 4 describes the automatic in / out microphone device in detail as follows.

The automatic in / out microphone device includes a small DC motor 30, a drive roller 301 provided on the motor shaft 304, a driven roller 302 positioned to face the drive roller 301, and a bracket 40 for fixing the roller 302 to the motor 30. It consists of.

The drive roller 301 has a portion 3011 in contact with the tube of the microphone device, the portion 3011 is most preferably a rubber material. In addition, the driven roller 301 also has a portion 3021 in contact with the tube of the microphone device, wherein the portion 3021 is most preferably a rubber material.

At this time, the driving roller and the driven roller is composed of a high-density slightly smaller diameter size of the middle portion than both ends in order to maximize the portion 3011,3021 in contact with the tube.

The driven roller 302 is installed at the free end 3031 of the bracket and rotates in an idle state. However, the driven roller 302 is in contact with the tube of the microphone device to rotate simultaneously with the drive roller.

The bracket has a bottom surface 401 and has a free end extending to one side. Since the free end 3031 is bent and has a shape of tension, the free end 3031 is opposed to an external force applied to the driven roller 302 (such as bending of a tube generated at the time of drawing out). In addition, the bracket 40 has a fastening end 401 to be fixed to the motor 30 at an outer circumferential predetermined position of the bottom surface 401.

The rotation speed of the drive motor 30 is controlled by a control unit to adjust the drawing / drawing operation of the microphone device.

Furthermore, in the drawings, an example applied to a bar-type mobile phone is disclosed, and a separate call button (not shown) is provided so that the microphone device 20 is automatically drawn out when the call button is pressed and the call is made. When finished, the call button is pressed again to automatically retract the microphone.

In the flip type mobile phone, for example, the microphone device 20 is allowed to be pulled in or out depending on whether the flip is opened or closed. When the flip is opened to make a call, the microphone device 20 is automatically drawn out, and when the call ends and the flip is closed, the microphone device is automatically drawn in. That is, according to the call mode or the call standby mode, the microphone device automatically allows incoming or outgoing from the main body.

Additionally, the automatic draw / draw microphone device of the present invention is limited to being installed at one side of the lower end of the main body 10, but is also applicable to the middle part of the main body.

As shown in Fig. 5, when the motor rotates clockwise, the tube 202 moves in the direction drawn out by the frictional force with the drive roller 301, and simultaneously the driven roller 302 rotates in the counterclockwise direction. .

On the other hand, when the motor rotates counterclockwise, the tube 202 moves in the direction drawn by friction with the drive roller 301, and simultaneously the driven roller 302 rotates clockwise.

As a result, according to the present invention, the microphone 201 is drawn in or drawn out as the motor 30 rotates clockwise or counterclockwise. The rotation direction of the motor 30 is controlled by the controller, and the rotation speed of the motor 30, that is, the entry or withdrawal distance of the tube 202 of the microphone device 20 is also controlled.

On the other hand, in the detailed description of the present invention has been described with respect to specific embodiments, it will be apparent to those skilled in the art that various modifications are possible without departing from the scope of the present invention.

As described above, the present invention is convenient to use from the user's point of view by the automatic pull-in / out antenna device, and is advantageous in miniaturizing the body size.

Claims (3)

The automatic in / out microphone unit installed at the bottom of the mobile phone main body A DC small motor having a motor shaft and being a power source; A driving roller installed on the motor shaft to receive power; A driven roller installed at a position facing the driving roller; A bracket having a bottom surface, having a fastening end for being fixed to the motor at a predetermined position of the bottom surface, and having a free end bent to install the driven roller on the bottom surface; And a microphone device which draws in or draws out by contacting the driving roller and the driven roller. The method of claim 1, The microphone device MIC; And Made of a flexible material connected to the microphone, the automatic in / out microphone device of the mobile phone, characterized in that consisting of a tube having a stopper at the end. The method of claim 1, The driving roller and the driven roller is an automatic draw / withdrawal microphone device of the mobile phone, characterized in that the high-density type for maximum friction.