KR100548398B1 - Speaker apparatus in mobile phone - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker device of a portable terminal, the speaker device of a portable terminal comprising a speaker for converting an electrical signal from a circuit of the portable terminal and outputting sound waves, wherein the speaker is seated and the sound wave transmission direction of the speaker is adjusted. The speaker device of the portable terminal further comprises a rotatable speaker casing to be adjusted so that sound waves from the speaker to the outside of the portable terminal can be smoothly transmitted in a call waiting state and the other party's voice can be heard without distortion in the call state. To provide.

Portable Terminals, Speakers, Sound Wave Direction, Speaker Casing, Rotation Sensor

Description

Speaker device of portable terminal {SPEAKER APPARATUS IN MOBILE PHONE}

1 to 4 is a view showing the configuration of a conventional portable terminal,

1 is a perspective view showing the configuration of a conventional portable terminal

Figure 2 is a front view of Figure 1

3 is a cross-sectional view of the main portion taken along the cutting line III-III of FIG.

4 is a perspective view of a portable terminal showing a sound wave propagation path by the speaker device of FIG.

5 to 7 is a view showing the configuration of a speaker device of a portable terminal according to an embodiment of the present invention,

5 is a sectional front view of main parts of a portable terminal according to an embodiment of the present invention;

FIG. 6 is a sectional view of the main parts taken along the cutting line VI-VI of FIG. 5; FIG.

Figure 7 is a perspective view of Figure 5

8 is a flow chart of volume control of the speaker device of FIG.

** Description of symbols for the main parts of the drawing **

122: folder casing 129: rotation guide groove

130: speaker unit 131: speaker casing

132: speaker 133: sound wave transmission hole

137: Volume up button 139: Rotating cylinder

139a: spinneret

The present invention relates to a speaker device of a portable terminal, and more particularly, in a portable terminal equipped with a speaker, when transmitting sound waves from the speaker of the portable terminal to the outside of the portable terminal, sound waves are not disturbed by surrounding obstacles. The present invention relates to a speaker device of a portable terminal capable of transmitting.

The portable terminal has been used for wireless voice communication, but the portable terminal meets the needs of consumers seeking a ringtone having a higher sound quality with improved voice communication function, and services such as multimedia as the functional area is diversified. In order to cope with the problem, a speaker device having improved sound quality has recently been used in portable terminals.

Recently, portable terminals have been released that are divided into a speaker for voice communication function and a speaker for music having high sound quality so that a user can effectively use high sound quality. Here, the music speaker is used as a ringtone or a multimedia service.

As a portable terminal, a bar type, a flip type, a folding type, and a slide type are used. Hereinafter, the portable terminal will be described as an example of the most widely used folding type portable terminal.

1 to 4 show the configuration of a conventional portable terminal, FIG. 1 is a perspective view showing the structure of a conventional portable terminal, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a cut line III- of FIG. Fig. 4 is a perspective view of a portable terminal showing a sound wave propagation path by the speaker device of Fig. 1.

As shown in the figure, the portable terminal is composed of a main body portion 10 and a folder portion 20 formed to be opened and closed by a hinge mechanism 30 on one side thereof.

The main body 10 includes a keypad 11 composed of a plurality of buttons for inputting information on an upper surface thereof, a main body casing 12 formed to enclose a circuit portion formed for communication control of a portable terminal, and a main body casing ( The battery 13 includes a battery 13 charged and discharged so as to be detachably attached to the lower surface of the 12, and a talker 15 for transmitting voice during a call.

The folder unit 20 includes a liquid crystal screen 21 in which information is input using a keypad 11 or a message reception content is displayed in numbers or letters, and a folder unit casing 22 formed to surround the liquid crystal screen 21. ), An auxiliary liquid crystal display 24 formed on the front side of the folder unit 20, and a receiver 23 for converting a call voice from an electrical signal and receiving the voice signal through the speaker 30 for voice.

Here, the folder casing 22 located on the sound wave transmission path from the speaker 30 to the outside in order to smoothly transmit the sound waves from the speaker 30 embedded in the folder casing 22 of the folder 20 to the outside. A) sound wave transmission hole 31 is formed in each, so that sound waves from the speaker 30 can be transmitted to the outside well.

The portable terminal equipped with a conventional speaker device includes a sound wave transmission hole 31 in the folder casing 22 to smoothly transmit sound waves from the speaker 30 built in the folder casing 22 to the outside of the portable terminal. Although it is configured to favor ringtone recognition, the speaker 30 is positioned to face the front of the folder 20 so that the portable terminal is always in one direction along the sound wave path shown in FIG. 40 regardless of the closed or open state of the portable terminal. Since only the sound wave proceeds, the speaker 30 is configured to face in the opposite direction from the user's position when the folder unit 20 is opened so that the voice of the other party is small and sound distortion occurs. .

The present invention has been made to solve the problems of the prior art as described above, in a portable terminal equipped with a speaker, the sound wave from the speaker to the outside of the portable terminal is smoothly transmitted and at the same time the voice of the other party does not distort well during the call. It is an object of the present invention to provide a speaker device of a portable terminal.

The present invention provides a speaker device of a portable terminal having a speaker for outputting sound waves by converting an electrical signal from a circuit portion of the portable terminal, the seating the speaker and the sound wave transmission direction of the speaker It provides a speaker device of a portable terminal, characterized in that further comprises a rotatable speaker casing to adjust.

This allows the user to detect ringtones smoothly by leaving the speaker facing outwards while in a call waiting state, and at the same time, adjust the sound wave direction of the speaker so that the other party's voice can be heard without distortion in the open state of the mobile terminal. To make it work.

In addition, when the speaker faces the front of the portable terminal, the sound from the speaker is output at a high volume, and when the speaker faces the rear of the portable terminal, the sound from the speaker is preferably output at a small volume. .

This is to prevent damage such as rupture of the user's eardrum by habitually bringing the speaker closer to the earpiece while the speaker is facing the rear of the portable terminal.

And, the rotating guide groove for the speaker casing formed in the portable terminal; A rotating cylinder formed on an outer circumferential side of the speaker casing to be rotatably fixed in engagement with the rotating guide groove; It is effective to include more.

In addition, the rotating cylinder is preferably formed in a hollow shape so that the speaker connection lead can pass.

And, it is effective to further comprise a rotation sensor device capable of detecting whether the speaker is facing the front or rear.

At this time, the rotation sensor mechanism may be configured to include a magnet mounted on the speaker casing side, and a magnetic sensor mounted on the portable terminal for detecting a magnetic field from the magnet.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, in describing the present invention, a detailed description of known functions or configurations will be omitted to clarify the gist of the present invention. Incidentally, the same or equivalent components as those described above are given the same or equivalent reference numerals, and detailed description thereof will be omitted.

5 to 7 is a view showing the configuration of a speaker device of a portable terminal according to an embodiment of the present invention, Figure 5 is a sectional front view of the main portion of the portable terminal according to an embodiment of the present invention, Figure 6 is Figure 5 Fig. 7 is a perspective view of Fig. 5 and Fig. 8 is a flowchart of volume control of the speaker device of Fig. 5 according to the cutting line VI-VI of Fig. 7.

As shown in the figure, the speaker device 130 of the portable terminal according to an embodiment of the present invention is a speaker 132 is built in the folder casing 122 and converts an electrical signal into sound waves having a high sound quality, A cylindrical speaker casing 131 injection molded in plastic so as to seat and rotate the speaker 132, and a wiring 135 for supplying a voice signal to the speaker 132 from the circuit portion.

The speaker 132 includes a vibration membrane portion 132c including a diaphragm to generate sound waves, a coil portion 132b formed to generate vibrations on the diaphragm, and a speaker 132 to be fixed to the speaker casing 131. Fixing parts 132a protruding at both ends of the wires, wires 135 for supplying power to the speaker 132 and transmitting various signals are connected to the circuit part of the portable terminal. At this time, the fixing part 132a is inserted into the speaker fixing hole 139b formed in the speaker casing 131 to fix the speaker 132 to the speaker casing 131.

The speaker casing 131 is a sound wave transmission hole 133 formed in the front direction of the speaker 132 so that sound waves from the seated speaker 132 is not disturbed on its transmission path, and the wiring 135 is connected to the speaker 132. Rotation cylinder 139 protruding in a hollow shape from the outer circumferential side of the speaker casing 131 so as to connect between the circuit portion and the rotation guide formed in the folder portion casing 122 so as to rotate relative to the folder portion casing 122. The rotating protrusion 139a protrudes from the outer circumferential surface of the rotating cylinder 139 so as to rotate in engagement with the groove 129.

At this time, the wiring 135 is connected to the circuit portion and the speaker 132 through the empty center portion of the hollow cylindrical cylinder 139, the speaker device 130 is a folder of the portable terminal in consideration of the twisting of the wiring 135 Since it is installed in the unit 20, it is more effective to be limited to rotate only 180 degrees clockwise, 180 degrees counterclockwise.

In the figure, reference numeral 110 denotes a main body of the portable terminal, 112 denotes a main body casing of the portable terminal, and 123 denotes a voice receiver that uses the user's ear when talking on the telephone.

On the other hand, in order to remove the limitation of the rotational range due to the twisting of the wiring 135, it is possible to remove the limitation of the rotational range by supplying electrical signals and power by using a device such as a snap ring or by using a rotatable pin type terminal. Could be

On the other hand, a small magnet 136 is attached to the front end surface of the rotating cylinder 139 of the speaker casing 131 and rotates together with the rotation of the speaker casing 131, and the folder part casing is spaced apart from the small magnet by a predetermined distance. As the magnetic sensing sensor 138 is mounted on the 122, the magnetic sensing sensor 138 senses a magnetic field formed from the small magnet 136 whenever the speaker 132 rotates in the front-rear direction. To detect the direction of.

When the speaker device 130 of the portable terminal is configured as described above, the speaker 132 is installed to face the front portion of the folder unit 20 in a call waiting state, and when a ring tone sounds during the call waiting, the speaker unit 130 is moved to the front portion of the folder unit 20. Sound waves are delivered, which is advantageous for the user to detect the ringtone.

Then, when the call is connected, the user makes a call with the folder unit 20 open to the body unit 10, and the user attaches the speaker 132 to the folder unit 20 to prevent distortion of voice. Look at the back of the). In particular, in the case of a portable terminal used for video communication such as a 3G phone, it is possible to perform a role as a speaker phone.

On the other hand, the user does not know whether the received call state is a video call or a general call, the user is usually close to the user's ear, the speaker 132 in the process of looking at the rear of the folder 20, the speaker Since the eardrum is ruptured due to the loud volume of 132, the user's damage is concerned. As shown in FIG. 8, when the speaker 132 is detected as looking toward the rear of the folder by the magnetic sensor 138, as shown in FIG. Command to reduce the volume of the speaker 132 once.

Then, if the call state is a normal call, the user may call the ear to the receiver according to the reduced volume. In addition, when the call state is a video call, the user needs to open the folder unit 20 so that the camera 150 faces the user and at the same time, the user should make a call while looking at the LCD screen 21, so that the user needs to There is no need to hold the ears and the speaker 132 preferably serves as a speakerphone. Therefore, the user can increase the volume by pressing the volume up button 137 that increases the volume of the call, so that the user can talk at a high volume.

While preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope of the claims.

As described above, the present invention is a speaker device of a portable terminal having a speaker for outputting sound waves by converting an electrical signal from the circuit portion of the portable terminal, the speaker to rotate so as to adjust the sound wave transmission direction of the speaker By further comprising a speaker casing possible, the user can directly adjust the direction of the speaker so that the sound wave from the speaker to the outside of the portable terminal is smoothly transferred in the call waiting state and at the same time the other party's voice can be heard without distortion. Provided is a speaker device of a portable terminal.

Claims (7)

In the speaker device of a portable terminal having a speaker for converting an electrical signal from the circuit portion of the portable terminal to output sound waves, A speaker casing rotatable to seat the speaker and adjust a sound wave transmission direction of the speaker; A rotation detection sensor mechanism capable of detecting whether the speaker faces the front or the rear; Speaker device of a portable terminal, characterized in that configured to include. The method of claim 1, When the speaker faces the front of the portable terminal, the sound from the speaker is output at a high volume, and when the speaker is facing the rear of the portable terminal, the sound from the speaker is output at a small volume Speaker device of the terminal. The method of claim 1, A rotating guide groove for a speaker casing formed in the portable terminal; A rotating cylinder formed on an outer circumferential side of the speaker casing to be rotatably fixed in engagement with the rotating guide groove; Speaker device of a portable terminal, characterized in that further comprises. The method of claim 3, wherein The rotating cylinder is a speaker device of a portable terminal, characterized in that formed in a hollow shape so that the speaker connection lead can pass. delete The method of claim 1, The rotation sensor apparatus is a speaker device of a portable terminal, characterized in that it comprises a magnet mounted on the speaker casing side, and a magnetic sensing sensor mounted on the portable terminal for detecting a magnetic field from the magnet. The method of claim 1, The range of rotation of the speaker is a speaker device of a portable terminal, characterized in that -180 degrees to +180 degrees.

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