KR20100081184A - Speaker module of portable terminal - Google Patents

Abstract

PURPOSE: A speaker module of a portable terminal is provided to transfer a grand acoustic sound to a user by vibrating a main body housing or an LCD module. CONSTITUTION: A variable member(120) is included in the inner side of a speaker housing and varies a length according to magnetic force. A coil part(130) is interposed between the speaker housing and the variable member. A magnetic force is offered in order to vary the variable member. A vibration member(140) is included in the variable member. According to the variable of the variable member, vibrations are transferred to the outside.

Description

Speaker module of portable terminal {SPEAKER MODULE OF PORTABLE TERMINAL}

The present invention relates to a speaker module of a portable terminal, and more particularly, to enable a user to make a call with an accurate reception sound even in a noisy surrounding environment, as well as to provide a realistic and grand sound when using a multimedia service. It is about a module.

In general, a portable terminal refers to a device that provides a wireless communication function between a user and a user or a user and a service provider through a mobile communication base station, and the like. Various types of service contents, such as watching TV, online games, and video on demand, are provided to a user through a portable terminal.

The portable terminal as described above has a bar-type terminal provided with an input / output device such as a communication circuit, a transmitter, a receiver, and the like in one housing, a flip-type terminal provided with a flip cover in the bar-type terminal, and a pair of housings open and close and open and close. The apparatus is classified into a folding terminal or the like distributed in each housing. Recently, sliding type terminals have been introduced to satisfy various tastes of users while increasing portability and convenience of use with folding type terminals.

Mobile communication services using such mobile terminals were initially limited to voice calls, short message transmission, etc., but also multimedia services and digital multimedia broadcasting (DMB), as well as transmission of games, music and video files, and online games. It is expanded to "."

Prior to the commercialization of multimedia services and DMB, display devices of portable terminals have already implemented high-definition and color screens by using thin film transistor (TFT) devices instead of monochromatic liquid crystal display devices. Such display devices may be used to provide a color screen with sufficient image quality for multimedia service or DMB viewing.

Meanwhile, in order to provide a speaker device suitable for such a multimedia service and a DMB service, separate speaker units are additionally installed in addition to the speaker unit that outputs a sign sound and a ring tone. Through such added speaker units, the portable terminal implements stereo sound.

However, due to the limited space of the portable terminal, the performance of the additionally installed speaker units is not fully exhibited. That is, the sound output to the rear of the speaker unit cancels or distorts the sound in the bass region due to the phase difference with the sound output to the front, and the sound reflected in the terminal affects the sound pressure unit again. There is a problem of degrading sound quality.

In addition, in the case of a portable terminal equipped with a conventional speaker, the sound quality and the sound wave size are determined by the vibration plate built into the speaker, but the size of the speaker embedded in the portable terminal aiming at slimming and miniaturization is limited. In the structure of a miniaturized portable terminal, there is a problem in that sound is restricted.

In addition, in the case of a portable terminal equipped with a conventional speaker, the call is made by sound waves, so when the surrounding environment becomes noisy, the user may not hear the sound coming out of the speaker due to noise, or if the call sound is maximized, the contents of the individual call There is a problem that sounds like this around.

In addition, in order to use a multimedia service or to listen to music through a built-in mp3, an independent high-quality multimedia speaker must be separately installed, causing a problem of cost increase, and space limitation of a portable terminal equipped with a multimedia speaker. Due to the limitation of the size of the shaking plate, there is a problem in that sound and sound quality are deteriorated.

Therefore, there is a need for a speaker device of a portable terminal that enables a user to receive a correct received sound even in a noisy surrounding environment.

In addition, when using a multimedia service or listening to music such as MP3, there is a need for a speaker device of a portable terminal that allows a user to enjoy high quality sound and sound quality.

The present invention is a body housing or LCD surface of a portable terminal when a call is made through a portable terminal through a large magnetostrictive material (GMM) alloy, such as Tefenol-D, which has a large magnetic distortion due to magnetic force. The present invention provides a speaker module of a portable terminal capable of generating sound waves using a medium.

In addition, when using a multimedia service or MP3 music through a portable terminal, the vibration plate of the conventional speaker can be replaced directly with a desk or table shaking plate so that the vibration of the GM alloy is used as a medium for the desk or table. The present invention provides a speaker module of a portable terminal capable of providing a stereoscopic sound to a user.

The present invention provides a speaker module of a portable terminal,

Speaker housings;

A variable member provided inside the speaker housing and having a variable length according to a magnetic force;

A coil unit provided between the speaker housing and the variable member and variably providing a magnetic force of the variable member; And

Disclosed is a speaker module of a portable terminal, which is provided in the variable member and includes a vibration member that transmits the vibration to the outside as well as the vibration according to the variation of the variable member.

As described above, according to the speaker module of the portable terminal according to the present invention, by using a large magnetostrictive material (GMM) such as Terpenol-D having a large magnetic distortion phenomenon by magnetic force, Sound can be generated by vibrating the external medium using the housing of the terminal or the external member on which the portable terminal is placed, and the user can adjust the sound quality and the size of the sound wave according to the external member. .

In addition, when using a multimedia service or MP3 music through a portable terminal, by replacing the external member on which the portable terminal is placed or mounted with a vibration plate, the realistic sound can be provided and the sound wave through the external member is 360 Since it spreads in the direction of the direction there is an effect that can provide a user with a three-dimensional sound of the sound according to the direction of the sound waves.

In addition, there is an effect that allows the user to make a call with the correct reception sound even in the noise of the surrounding environment.

Therefore, it is possible to accurately receive the receiver's reception sound even in a noisy environment, and when using a multimedia service, it is possible to deliver a loud and grand sound to the user by vibrating an external member, a main body housing or an LCD module of a portable terminal. have.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described in detail. 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 is omitted.

As shown in FIGS. 1 and 2, the speaker module 100 of the portable terminal includes a speaker housing 110, a variable member 130, a coil unit 120, and a vibration member 140. .

The variable member 130 is provided on the inside of the speaker housing 110 so that its length is variable according to the magnetic force generated by applying power to the coil unit 120 to be described later. Since the current changes according to the sound source, the variable member 130 is shaken and vibrated while repeating expansion and contraction by the current changing according to the sound source.

The coil unit 120 is provided between the speaker housing 110 and the variable member 130 to provide a magnetic force that makes the variable member 130 variable. The coil unit 120 may be formed along the circumference of the variable member 130. When the current is generated by varying the sound source, the current flows to the coil unit 120 to generate a magnetic force according to the variable value of the current. The variable member 130 is variable in size by the magnetic force.

The vibration member 140 is provided to be engaged with the variable member 130 at one end thereof so that the variable by expansion and contraction of the variable member 130 is transmitted to the vibration member 140. Thus, the shaking member 140 is shaken by the shaking of the variable member 130. The shaking member 140 is provided on the variable member 130 to transmit the shaking to the outside as well as the shaking by the variable member 130.

As shown in FIG. 2, since the current changes according to the sound source, a variable current flows through the coil unit 120. The coil unit 120 generates a magnetic force by the variable current flow. The variable member 130 is formed of a giant magnetostrictive material (GMM) 130 that can be lengthened or shortened by the magnetic force of the coil unit 120.

The giant magnetostrictive member 130 is a magnetic alloy, the physical deformation of the material (or distortion (expansion / contraction)) is generated by the magnetic force, the physical deformation is much larger than the general material to be.

The giant magnetostrictive member 130 is preferably made of terpenol di (Tefenol-D).

For example, the magnetic distortion of a material such as iron is -7 microns, the magnetic distortion of the terpenol di is 2000 microns. For example, when magnetic force is applied to 1 meter of iron, it is reduced by 7 microns, and when magnetic force is applied to 1 meter of terpenol di, it is increased by 2 mm. Therefore, the giant magnetostrictive member, such as the terpenol di, vibrates while repeating contraction and expansion in accordance with the current varying by the sound source.

The giant magnetostrictive member 130 is preferably composed of an alloy of terbium (Tb), dysprosium (Dy), and iron (Ferrum: Fe).

As shown in FIGS. 2, 3, and 5 to 8, one end of the trembling member 140 may have one end of the giant magnetostrictive member 130 to receive the tremor of the giant magnetostrictive member 130. Is provided in engagement with, the tile end of the vibration member 140 is formed to protrude from the body housing 10 so as to transmit the vibration of the vibration member 140 to the outside.

For example, the tile end of the vibration member 140 may be engaged with an external member 20 such as a table, a table, or a cradle, which will be described later, and may be a main body housing 10 or an LCD module 11 of a portable terminal. ) To be engaged with

As shown in FIGS. 2, 7 and 8, the vibration member 140 has a support member 150 for supporting the vibration member 140.

As shown in FIG. 3, the tile end of the vibration member 140 is provided to be engaged with the inner surface of the main body housing 10 of the portable terminal.

When a magnetic force is applied to the coil unit 120, the giant magnetostrictive member 130 is variable, and the tremor according to the variation of the giant magnetostrictive member 130 is transmitted to the vibration member 140 and the vibration The member 140 vibrates the body housing 10 to generate sound through the shaking of the body housing 10.

As shown in FIG. 4, the tile end of the vibration member 140 is provided to be engaged with an inner surface of the LCD module 11 of the portable terminal.

 The giant magnetostrictive member 130 is variable by the magnetic force applied to the coil unit 120, the vibration according to the variation of the giant magnetostrictive member 130 is transmitted to the vibration member 140 and the vibration The member 140 shakes the LCD module 11 to generate sound through the shaking of the LCD module 11.

As shown in FIGS. 5 and 6, the tile end of the vibration member 140 protrudes out of the main housing 10 of the portable terminal to be placed or mounted on the main housing 10. It is formed to be able to face).

The giant magnetostrictive member 130 is variable by the magnetic force applied to the coil unit 120, the vibration according to the variation of the giant magnetostrictive member 130 is transmitted to the vibration member 140 and the vibration The member 140 vibrates the outer member 20 to generate sound through the shaking of the outer member 20.

Therefore, as shown in FIGS. 3 and 4, when the vibration member 140 is engaged with the main body housing 10 or the LCD module 11 of the portable terminal, the vibration source 140 is connected to the other party's sound source during a call. Accordingly, the giant magnetostrictive member 130 generates tremors, and due to vibration, the tremor member 140 vibrates the main body housing 10 or the LCD module 11 so that the reception sound of the other party is clear to the user. It will be possible to deliver. In addition, even when using a multimedia service, the vibration member 140 is capable of generating sound by vibrating the body housing 10 or the LCD module 11.

In addition, as shown in Figures 5 and 6, when the vibration member 140 is projected through the body housing 10 to be engaged with the outer member 20, such as a table, a table or a cradle, in particular multimedia When using a service or the like, the giant magnetostrictive member 130 is vibrated by the variable current generated by the sound source, and the vibration is transmitted to the vibration member 140. The shaking of the shaking member 140 is to vibrate the table or table engaged with the tile end of the shaking member 140 to generate a sound, that is, the outer member 20 such as the table or table is conventional It will function as the shaking board of the speaker module. Therefore, the speaker module according to the present invention will be able to provide a three-dimensional sound in the 3D form that was impossible in the sound by the shaking plate that is limited in the conventional size or shape.

As shown in FIG. 7 and FIG. 8, between the vibration member 140 and the speaker housing 110, the vibration plate 160 is further vibrated according to the vibration of the vibration member 140 to generate sound. It is provided.

When the vibration plate 160 is provided between the vibration member 140 and the speaker housing 110, the vibration member 140 is variable in the giant magnetostrictive member according to a variable value of the current according to the sound source. The vibration of the shaking member 140 is to vibrate the vibration plate 160 to generate sound.

As shown in FIG. 2, when a magnetic force is applied to the coil part 120, the giant magnetostrictive member 130 may be shaken by the occurrence of a variable expansion / contraction by the magnetic force of the coil part 120. The vibration member 140 engaged with one end of the giant magnetostrictive member 130 may be shaken according to the variation of the giant magnetostrictive member 130. The tile end of the vibration member 140 is engaged with at least one of the main body housing 10, the LCD module 11, or the external member 20 of the portable terminal, so that the main body housing 10 or the LCD module 11 or the outside of the vibration member 140 is engaged. Sound is generated by vibrating at least one of the members 20 as a medium.

Referring to Figures 1 to 8 attached to the operation of the speaker module of the portable terminal according to an embodiment of the present invention having the configuration as described above in detail as follows.

First, as shown in FIG. 3 and FIG. 4, the operation process of the state in which the vibration member 140 is provided to be engaged with the body housing 10 or the LCD module 11 of the portable terminal will be described. .

When the user makes a call with the other party through the portable terminal, a current is applied to the coil unit 120 by the reception sound of the other party, and the coil unit 120 is applied to the coil unit 120 in a variable manner. Magnetic force is generated by the current.

The magnetic force causes the giant magnetostrictive member 130 to vary, and the giant magnetostrictive member 130 is engaged with the one end of the giant magnetostrictive member 130 while contracting and expanding. Will vibrate.

The vibration member 140 is vibrated by the giant magnetostrictive member 130 and the vibration is transmitted to the main body housing 10 or the LCD module 11 engaged with the tile end of the vibration member 140. In addition, the body housing 10 or the LCD module 11 is vibrated.

Accordingly, the reception sound of the other party generates a sound by vibrating the body housing 10 or the LCD module 11, and the user can receive the sound.

In addition, when a user uses a function such as a multimedia service or mp3 through the portable terminal, a current is applied to the coil unit 120 by a sound source emitted from the multimedia service or mp3, and the coil unit 120. The magnetic force is generated by the variable current applied to the coil unit 120.

The magnetic force causes the giant magnetostrictive member 130 to vary, and the giant magnetostrictive member 130 is engaged with the one end of the giant magnetostrictive member 130 while repeating contraction and expansion. 140) to vibrate.

The vibration member 140 is vibrated by the giant magnetostrictive member 130 and the vibration is transmitted to the body housing 10 or the LCD module 11 engaged with the tile end of the vibration member 140. The body housing 10 or the LCD module 11 is vibrated.

Accordingly, the reception sound of the other party generates a sound by vibrating the body housing 10 or the LCD module 11, and the user can receive the sound.

In addition, as shown in FIG. 5 and FIG. 6, the operation of the shaking member 140 is provided to protrude out of the body housing 10 through the body housing 10 of the portable terminal. do.

First, in order for a user to use a function such as a multimedia service or an mp3 through the portable terminal, the user executes a function such as a multimedia service or an mp3, and the portable terminal is mounted on the external member 20 such as a desk, a table, or a holder. ) To face the vibration member 140 to be engaged.

By executing a function such as a multimedia service or mp3 through the portable terminal, a current is applied to the coil unit 120 by a sound source emitted from the multimedia service or mp3, and the coil unit 120 includes the coil unit ( Magnetic force is generated by the variable current applied to 120).

The magnetic force causes the giant magnetostrictive member 130 to vary, and the giant magnetostrictive member 130 is engaged with the one end of the giant magnetostrictive member 130 while contracting and expanding. Will vibrate.

The vibration member 140 is vibrated by the giant magnetostrictive member 130, and the vibration is transmitted to the outer member 20 engaged with the tile end of the vibration member 140.

The outer member 20 is vibrated by the vibration of the shaking member 140 to emit sound such as the multimedia service or mp3.

Therefore, it is possible for the user to receive 3D stereoscopic sound.

In addition, as shown in FIG. 7 and FIG. 8, the operation when the vibration plate 160 is mounted between the speaker housing 110 and the vibration member 140 will be described.

The speaker module may include the coil unit 120 applying magnetic force to the variable member 130 and the variable member 130 to the speaker housing 110, and the variable variable through the magnetic force of the coil unit 120. The vibration member 140 is vibrated by the variable member 130, and the vibration plate 160 is provided between the vibration member 140 and the speaker housing 110.

Accordingly, the speaker module may be mounted on not only a portable terminal but also an electronic device such as a multimedia device in which a sound source is generated.

For example, when the speaker module is mounted in the portable terminal and is received through the portable terminal or when using a multimedia service, a current according to the sound source is applied to the coil unit 120.

A magnetic force is generated in the coil part 120 by a current according to a sound source, and the magnetic force is varied so as to expand / contract the giant magnetostrictive member 130 wound by the coil part 120.

The vibration member 140 is vibrated according to the variation of the giant magnetostrictive member 130, the vibration plate 160 generates vibration in accordance with the vibration of the vibration member 140, the sound wave is vibration It is generated through the vibration of the plate 160 to generate a sound, the user will be able to hear the reception of the other party, or receive a sound source such as a multimedia service.

Therefore, as described above, the vibration according to the giant magnetostrictive member 130 has a large variable width, so that the sound wave is caused by the vibration generated by the giant magnetostrictive member 130 and the body housing of the portable terminal. 10, generated through the LCD module 11, the outer member 20 or the shaking plate 160, the sound is magnificent, three-dimensional. Therefore, the user can receive the sound more realistically.

In addition, when the outer member 20 is made of a wooden table or a table such as glass, the user can receive a larger, cleaner and three-dimensional sound. In addition, as the size of the outer member 20 increases, it is possible to more vividly receive sound through vibration.

The speaker module of the portable terminal of the present invention described above is not limited to the above-described embodiments and drawings, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those of ordinary skill in the art.

1 is a view showing a speaker module of a portable terminal according to an embodiment of the present invention.

2 is a view showing a speaker module in a speaker module of a portable terminal according to an embodiment of the present invention.

Figure 3 is a speaker module of a portable terminal according to an embodiment of the present invention, a state in which the vibration member of the speaker module is engaged with the inner surface of the main body housing.

Figure 4 is a speaker module of a portable terminal according to an embodiment of the present invention, a state in which the vibration member of the speaker module is engaged with the inner surface of the LCD module to generate a sound.

Figure 5 is a speaker module of a portable terminal according to an embodiment of the present invention, a view showing a state in which the vibration member of the speaker module protrudes outside the body housing.

Figure 6 is a speaker module of a portable terminal according to an embodiment of the present invention, the body housing is placed / mounted on the outer member showing a state in which the vibration member is engaged with the outer member to generate a sound.

Figure 7 is a speaker module of a portable terminal according to an embodiment of the present invention, a view showing a state provided with a vibration plate between the vibration member and the housing.

8 is a view showing a state in which a shaking plate vibrates to generate sound in a speaker module of a portable terminal according to an exemplary embodiment of the present invention.

Claims (11)

In the speaker module of a portable terminal, Speaker housings; A variable member provided inside the speaker housing and having a variable length according to a magnetic force; A coil unit provided between the speaker housing and the variable member and variably providing a magnetic force of the variable member; And The speaker module of the portable terminal, characterized in that provided in the variable member, including a vibration member for transmitting the vibration to the outside as well as the vibration according to the variable of the variable member. The method of claim 1, The variable member is a speaker module of a portable terminal, characterized in that made of a giant magnetostrictive material (Giant Magnetostrictive Material (GMM)) that can be lengthened or shortened by the magnetic force of the coil unit. The method of claim 2, The giant magnetostrictive member is a speaker module of a portable terminal, characterized in that made of Terfenol-D (Tefenol-D). The method of claim 2, The giant magnetostrictive member is a speaker module of a portable terminal, characterized in that consisting of alloys of terbium (Tb), dysprosium (Dy), iron (Ferrum: Fe). The method of claim 2, One end of the vibration member is provided to be engaged with one end of the giant magnetostrictive member, the tile end of the vibration member protrudes from the housing to transmit the vibration of the vibration member to the outside of the speaker of the portable terminal module. The method of claim 5, Speaker module of the portable terminal, characterized in that the support member for supporting the vibration member is formed on the vibration member. The method of claim 5, The tile end of the vibration member is provided to be engaged with the inner surface of the main body housing of the portable terminal, The giant magnetostrictive member is variable by the magnetic force of the coil portion, The tremor according to the variation of the giant magnetostrictive member is transmitted to the tremor member, the tremor member shakes the body housing to generate a sound through the tremor of the body housing. The method of claim 5, The tile end of the vibration member is provided to be engaged with the inner surface of the LCD module of the portable terminal, The giant magnetostrictive member is variable by the magnetic force of the coil portion, The tremor according to the variation of the giant magnetostrictive member is transmitted to the tremor member, the tremor member shakes the LCD module to generate a sound through the tremor of the LCD module. The method of claim 5, The tile end of the vibrating member is provided to protrude outward from the main housing of the portable terminal, and is formed to face the outer member on which the main housing is placed or mounted. The giant magnetostrictive member is variable by the magnetic force of the coil portion, The tremor according to the variation of the giant magnetostrictive member is transmitted to the tremor member and the tremor member shakes the outer member to generate sound through tremor of the outer member. The method of claim 5, Speaker module of the portable terminal further comprises a vibration plate between the vibration member and the housing to vibrate to generate sound in accordance with the vibration of the vibration member. The method of claim 2, In the giant magnetostrictive member, tremors occur due to the expansion / contraction of the coil part due to the magnetic force, The vibration member is vibrated according to the variation of the giant magnetostrictive member engaged with one end of the giant magnetostrictive member, The tile end of the vibration member is coupled to the body housing of the portable terminal or the LCD module or at least one of the external member of the speaker module of the portable terminal, characterized in that to generate a sound.

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