KR20130076450A

KR20130076450A - Mobile terminal

Info

Publication number: KR20130076450A
Application number: KR1020110145043A
Authority: KR
Inventors: 장창용
Original assignee: 엘지전자 주식회사
Priority date: 2011-12-28
Filing date: 2011-12-28
Publication date: 2013-07-08

Abstract

PURPOSE: A mobile terminal is provided to supply improved sound performance while implementing miniaturization. CONSTITUTION: A case (111) forms the exterior of a main body. The case includes a through hole discharging a sound. A carrier module (200) is combined with the case. The carrier module includes a placing unit in a first surface of the module facing the case. The carrier module includes a conductive pattern in a second surface of the module. The conductive pattern transceives a wireless signal.

Description

[0001] MOBILE TERMINAL [0002]

One embodiment of the present invention relates to a structure of a mobile terminal that provides improved acoustic performance.

As the functions are diversified, the terminal is implemented in the form of a multimedia device having a complex function of, for example, taking pictures or moving pictures, playing music or moving picture files, receiving games and receiving broadcasts have.

The terminal can move And may be divided into a mobile terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. A portable terminal is a portable device having one or more functions capable of performing voice and video communication, capable of inputting / outputting information, and storing data, which can be carried while being portable.

In order to support and enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal.

Accordingly, a speaker mounting structure of a mobile terminal capable of being lighter and slimmer and more capable of exhibiting improved acoustic performance may be considered.

It is an object of the present invention to provide a mobile terminal which can be miniaturized and has improved acoustic performance.

Another object of the present invention is to provide a mobile terminal which can be miniaturized while demonstrating a certain performance by integrally modularizing not only a speaker device but also a peripheral device.

In order to achieve the above object of the present invention, a mobile terminal according to an embodiment of the present invention, the case and the case having a terminal body, a through hole for forming the appearance of the main body and emits sound to the outside And a carrier module coupled to the rear surface, and having a seating portion coupled to the first surface facing the case, and having a conductive pattern formed on the second surface to transmit and receive a radio signal, wherein the carrier module includes: And a second resonance portion communicating with the first resonance portion to extend a first resonance portion formed between the case and the seating portion.

According to an example related to the present invention, the second resonator may include a first groove formed in the carrier module and a sealed space formed by a first cover coupled to the carrier module to cover the first groove. have.

According to an example related to the present invention, the first cover may be formed so that at least a portion thereof is stepped to be coupled to the first rib of the carrier module forming the first groove.

According to an example related to the present invention, the first groove may include a guide rod protruding toward the first cover to be coupled, and the first cover may include a guide seating groove to be coupled to the guide rod. .

According to an example related to the present disclosure, the carrier module may include a third resonance unit communicating with the first resonance unit to extend the first resonance unit and spaced apart from the second communication unit.

According to an example related to the present disclosure, the carrier module may include a third resonance unit communicating with the second resonance unit to extend the second resonance unit.

According to an example related to the present invention, the third resonator may include a second space formed in the carrier module and a sealed space formed by a second cover coupled to the carrier module to cover the second groove. have.

According to an example related to the present invention, the second cover may be formed so that at least a portion thereof is stepped to be coupled to the second rib of the carrier module forming the groove.

According to an example related to the present invention, the second groove may include a guide rod protruding toward the second cover to be coupled, and the second cover may include a guide seating groove to be coupled to the guide rod. .

According to an example related to the present disclosure, the speaker unit and the first surface may be spaced apart from each other, and a space between the speaker unit and the first surface may constitute a part of the first resonance unit.

According to an example related to the present invention, the carrier module may be integrally formed including a camera unit, a motor, and an ear jack.

A mobile terminal according to at least one embodiment of the present invention configured as described above can achieve a slimming of the mobile terminal by increasing its mountability and space utilization.

In addition, the bass performance may be improved by reducing the influence of interference between the first sound generated in front of the sounding unit constituting the speaker and the second sound generated in the rear.

1 is a front perspective view of a mobile terminal according to an embodiment of the present invention;
2 is a rear perspective view of a mobile terminal according to an embodiment of the present invention;
3 is an exploded perspective view of the mobile terminal of FIG.
4 is a cross-sectional view taken along the line IV-IV of FIG. 1.
5 is a view showing the back of the carrier module according to an embodiment of the present invention.
6 is a front view of a carrier module according to an embodiment of the present invention.
7 shows an example of a lid coupled to a carrier module to form a second resonance.
8 is a front view of a carrier module according to another embodiment of the present invention.

Hereinafter, a mobile terminal according to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the present specification, the same or similar reference numerals are given to different embodiments in the same or similar configurations. As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), navigation and the like. However, the technical idea described herein may be applied to fixed terminals such as digital TVs and desktop computers.

1 is a perspective view of a mobile terminal 100 according to an embodiment of the present invention.

The case (casing, housing, cover, etc.) constituting the external appearance of the main body of the terminal is formed by the front case 111 and the rear case 121. Various electronic components are embedded in the space formed by the front case 111 and the rear case 121. At least one intermediate case may be additionally disposed between the front case 111 and the rear case 121. [ The cases may be formed by injecting a synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The front case 111 may include a display unit 113, a first sound output unit 114, a first image input unit (not shown), a first manipulation unit 116, a sound input unit 117, and the like.

The display unit 113 includes a display module 141 (see FIG. 3) such as a liquid crystal display (LCD) module, an organic light emitting diodes (OLED) module, and the like, which visually express information. The display unit 113 may be formed as a touch screen to enable information input by a user's touch.

The first sound output unit 114 may be implemented in the form of a receiver or a speaker.

The first image input unit may be implemented in the form of a camera module for capturing an image or a video of a user.

The first operation unit 116 receives a command for controlling the operation of the mobile terminal 100 according to an embodiment of the present invention. The first manipulation unit 116 may be a key area formed to receive a user's touch input on the window unit.

The sound input unit 117 may be implemented in the form of, for example, a microphone to receive a user's voice, other sounds, and the like.

The second operation unit 123, the interface 124, the power supply unit 125, and the like may be disposed on the rear case 121 mounted on the rear side of the mobile terminal 100.

The second manipulation unit 123 may be installed on the side of the rear case 121. In addition to the first manipulation unit 116, the second manipulation unit 123 may be collectively referred to as a manipulating portion, and may be adopted in any manner as long as the user is tactile in a tactile manner. . For example, the operation unit may be implemented as a dome switch or a touch screen or a touch pad capable of receiving commands or information by a push or touch operation of a user, or may be a wheel, a jog type, a joystick, Or the like.

In terms of functionality, the first manipulation unit 116 may be used to input a menu such as start, end, etc., and the second manipulation unit 123 may perform a special function such as activation of the first image input unit in addition to the scroll function. It can act as a hot-key. If the first and second manipulation units 116 and 123 are minimized as illustrated, a telephone number or a text may be input by a touch screen provided in the display unit 113.

The interface 124 is a path for allowing the mobile terminal 100 to exchange data with an external device. For example, the interface 124 may be a wired or wireless connection terminal for connecting to an earphone, a port for short range communication (for example, an IrDA port, a Bluetooth port, a wireless LAN port a wireless LAN port, etc.), or power supply terminals for supplying power to the mobile terminal 100. The interface 124 may be a card socket for receiving an external card, such as a subscriber identification module (SIM) or a user identity module (UIM), a memory card for storing information.

The power supply 125 is mounted to a rear case 121 for supplying power to the mobile terminal 100. The power supply unit 125 may be detachably coupled for charging, for example, as a rechargeable battery.

2 is a rear perspective view of the mobile terminal 100 of FIG.

Referring to FIG. 2, the rear case 121 may further include a second image input unit 127, a second sound output unit 130, and a broadcast signal receiving antenna 131.

The second image input unit 127 may be a camera having a photographing direction substantially opposite to the first image input unit and having different pixels from the first image input unit. For example, in the case of a video call, the first image input unit has a low pixel so that the user's face is photographed and transmitted to the other party, and the second image input unit 127 does not immediately photograph a general subject and transmit it. In many cases, it is desirable to have a high pixel.

The flash 128 and the mirror unit 129 are further disposed adjacent to the second image input unit 127. The flash 128 emits light toward the subject when the subject is photographed by the second image input unit 127. The mirror unit 129 allows the user to see his / her face or the like when the user wants to photograph (self-photograph) the user by using the second image input unit 127.

The second sound output unit 130 may implement a stereo function together with the first sound output unit 114 (refer to FIG. 1), and may be used for a call in a speakerphone mode.

The broadcast signal receiving antenna 131 may be disposed at one side of the rear case 121 separately from the antenna for a call or the like. The antenna 131 may be installed in the rear case 121 to be pulled out.

In the above description, the first operation unit 116 and the like have been described as being mounted to the front case 111, and the second operation unit 123 and the like are mounted to the rear case 121, but the present invention is not necessarily limited thereto. For example, the second operation unit 123 may be disposed in the front case 111 adjacent to the first operation unit 116. In addition, even if the second image input unit 127 is not provided separately, the first image input unit may be rotatably formed so that the image capturing direction of the second image input unit 127 may be taken.

3 is an exploded perspective view of the mobile terminal 100 of FIG.

Referring to this drawing, the window 140 is coupled to cover one surface of the front case 111. The window unit 140 covers one surface of the display module 141 so that visual information output from the display module 141 is recognized from the outside. The display module 141 and the window unit 140 form the display unit 113 (see FIG. 1).

The window unit 140 is formed to recognize a user's touch and enables input of information (command, signal, etc.).

The window unit 140 may have an area corresponding to the display module 141 and may be formed of a material through which light can pass. The window unit 140 may be formed with an opaque region in which light is not transmitted or the light transmittance is very low. For example, the surface may be treated to prevent light from passing along the edge of the window 140.

An operation pad may be formed on the front case 111 in correspondence with the first operation unit 116. The operation pad is a target to be touched or pressed by the user. It may be formed as a manipulation area on a portion of the manipulation pad window 140.

A sound hole 114b, a window hole, and an image window may be formed in the front case 111.

The sound hole 114b is formed to correspond to the sound output unit 114 so that the sound of the mobile terminal, for example, a ring tone, music, etc., is emitted to the outside. The window hole is formed to correspond to the display unit 113. In response to the first image input unit, a light transmitting image window may be formed.

The rear case 21 may include a circuit board 170, a display module 141, a speaker module 114a, a camera module 115a, and a switch.

The circuit board 170 may be configured as an example of a controller for operating various functions of the mobile terminal 100. The circuit board 170 may detect an electrical change, for example, a change in capacitance or a charge amount, generated inside the window 140 generated when the user touches the window 140.

Inside the window 140 is formed so that the electrode is embedded. The electrode may be formed in a conductive pattern. The electrode may be charged with charge, and if the conductor moves at a close distance, the amount of charged charge may change accordingly. When a conductor, for example a user's finger, touches a window, the amount of charge charged in the electrode changes, which is like changing the capacitance between the finger and the electrode.

The electrode of the window unit 140 is electrically connected to a control unit for detecting a change in the charge amount, for example, the circuit board 170. For this electrical connection, the flexible circuit board may be connected to the circuit board 170 (see FIG. 3 above) through the hole. According to the detection of the change in the amount of charge, the circuit board 170 may change the state of at least one of the functions related to the mobile terminal 100.

The flexible circuit board extends from one end of the window unit 140. A connecting portion is formed at one end of the flexible circuit board to be connected to the electrode, and the other end thereof may be connected to the circuit board 170 by a connector. The connection part may be formed of a metal material to maintain a certain stiffness and elasticity.

4 is a cross-sectional view taken along the line IV-IV of FIG. 1, FIG. 5 is a view showing a rear surface of a carrier module according to an embodiment of the present invention, and FIG. 6 is an embodiment of the present invention. 7 is a view showing the front of the carrier module according to Figure 7 is a view showing an example of a cover coupled to the carrier module to form a second resonance.

The carrier module 200 according to an embodiment of the present invention is disposed between the front case 111 and the rear case 121. The front case 111 has a through hole 114b to emit sound to the outside.

The speaker unit 220 may be disposed to cover the through hole 114b. The speaker unit 220 is seated on the carrier module 200.

The body 210 constituting the carrier module 200 may have a first surface 214 and a second surface 215. The mounting part 211 may be formed on the first surface 214 of the body 210 so that the speaker unit 220 may be seated.

The second surface 215 is formed with a conductive pattern 240 formed to transmit and receive a wireless signal, the conductive pattern 240 may constitute a part of the antenna device of the terminal. When a plurality of antenna devices of the terminal are formed, the antenna pattern formed on the carrier module 200 may be formed to resonate in WIFI or Bluetooth frequency band.

The speaker unit 220 and the first surface 214 of the carrier module are sufficiently separated from each other, and the space formed by the separation may constitute at least a part of the first resonance unit.

The first resonance part may be sealed to form a closed space so that the sound generated in the speaker unit 220 and directed toward the front through hole 114b does not leak to the outside. That is, the first resonator is a space defined by the rear of the speaker unit 220 and the first surface 214 of the carrier module.

The enclosed space is formed as a space having a predetermined size so that the sounding unit constituting the speaker may flow back and forth during the operation of the speaker.

In addition, since the conductive pattern 240 constituting the antenna device is formed on the second surface 215, it is required to sufficiently space the speaker from the first surface 214. This is because an electrical element close to the conductive pattern 240 affects antenna performance. In particular, the PIFA antenna can maintain the farthest distance from the ground of the main board of the terminal can realize a better radiation characteristics.

Speaker unit 220, or a converter (for example, a combination of a magnet and a coil) for generating vibration by electricity and a speaker or converter of a type consisting of a diaphragm vibrated by the converter to produce sound And a piezoelectric speaker in which the diaphragm and the diaphragm are integrally formed.

At least one of the camera module 127a, the motor 231, the SD card socket 232, or the ear jack 233 may be integrally formed on the second surface 215 of the carrier module 200.

This simplifies the assembly process and makes it possible to miniaturize the terminal.

The camera module 127a, the motor 231, the SD card socket 232, or the ear jack 233 may be sufficiently spaced apart from the conductive pattern 240. This affects antenna performance.

The carrier module 200 may include a second resonance unit 250 in communication with the first resonance unit to extend the first resonance unit. In order to implement a certain performance, the first resonance portion must be formed to a predetermined size or more.

However, the larger the first resonator, the smaller the size of the terminal. Therefore, it is preferable to expand the resonant space by utilizing the edge space of the carrier module 200.

For example, the space may be a predetermined space between a portion where the camera module 127a is seated and a portion where the SD card socket 232 is seated. Also, it may be another space between a portion where the camera module 127a is seated and a portion where the motor 231 is seated.

In this way, the second resonance unit 250 is formed to expand the first resonance unit in the rim space.

Due to the second resonance unit 250, the length extending from the center of the first resonance unit to one end of the second resonance unit 250 is increased. This increase in length can improve bass performance.

That is, a considerable amount of sound generated from the rear of the speaker unit 220 and propagated is dissipated, while a low diffraction low bass band is inverted in phase along the second resonance unit 250 providing an air passage. As it is emitted in the state, it can reduce the disappearance of bass as a whole.

The second resonance unit 250 may be formed by the first cover 260 coupled to the carrier module 200 to cover the first groove 251 and the first groove 251 formed in the carrier module 200. have. The first groove 251 and the first cover 260 form a sealed space. The enclosed space is in communication with the first resonance part.

The first groove 251 is a recessed portion formed by the first rib 252 that defines the edge space.

In addition, the first cover 260 is a portion coupled to the first groove 251, and should be in close contact with the first groove 251 so that sound does not leak out. To this end, the first cover 260 may be formed stepped. For example, the height of the outer wall 261 may be lower than that of the inner wall 262.

A guide rod 253 may be formed in the first groove 251. The guide rod 253 protrudes toward the first cover 260 coupled from the first groove 251. In response to the guide rod 253, the first cover 260 may include a guide seating groove 263 to be fitted to the guide rod 253.

The guide rod 253 may be formed in a shape corresponding to the guide seating groove 263 to be accommodated in the guide seating groove 263.

Thus, the convenience of assembling the terminal to the guide rod 253 and the guide seating groove 263 can be improved.

In the present embodiment, the guide rod is formed on the second resonance portion, and the guide seating groove is formed on the first cover. Alternatively, the guide rod is formed on the first cover, and the guide seating groove is formed on the second resonance portion. Can be.

8 is a front view of a carrier module according to another embodiment of the present invention.

The third resonance unit 370 may be formed in the carrier module 300 to extend the first resonance unit or the second resonance unit 350. In this way, the third resonance unit 370 may be formed to further expand the resonance space.

For example, if the second resonance portion is formed in a predetermined space between the portion where the camera module is seated and the portion where the SD card socket is seated, the third resonance portion is formed in another space between the portion where the camera module is seated and the portion where the motor is seated. The resonance unit 370 may be formed.

The third resonator 370 may be formed by the second cover 380 coupled to the carrier module 300 to cover the second groove 371 and the second groove 371 formed in the carrier module 300. have. The second groove 371 and the second cover 380 form another closed space. The sealed space communicates with the first resonance unit or the second resonance unit 350.

Due to the third resonator 370 communicating with the first resonator or the second resonator 350, the resonant space may be extended to secure more improved performance of the speaker.

For example, when the third resonator 370 communicates with the first resonator, the sound generated at the front and the rear of the speaker may be reduced to interfere with each other.

When the third resonator 370 communicates with the second resonator 350, since the third resonator 370 has a sufficient length from the first resonator to the third resonator 370, the bass performance may be further improved.

The second groove 371 is a recessed portion formed by the second rib 372 that defines the edge space.

The second cover 380 is a portion coupled to the second groove 371, and should be closely attached to the first groove 351 so that sound does not leak out. To this end, the first cover 360 may be formed stepped. For example, the height of the outer wall may be lower than that of the inner wall.

A guide rod 373 may be formed in the second groove 371. The guide rod 373 projects toward the second cover 380 coupled from the second groove 371. In response to the guide rod 373, the second cover 380 may include a guide seating groove to be fitted to the guide rod 373.

Guide rods 373 and guide seating grooves provide ease of assembly during terminal manufacturing.

The mobile terminal described above can be applied to not only the configuration and method of the embodiments described above but also all or some of the embodiments may be selectively combined so that various modifications may be made to the embodiments It is possible.

Claims

A terminal body;
A case having a through hole forming an exterior of the main body and emitting sound to the outside; And
A carrier module coupled to the case and having a seating portion coupled to the first surface facing the case, and having a conductive pattern formed on the second surface to transmit and receive a radio signal;
The carrier module,
And a second resonance portion communicating with the first resonance portion to extend a first resonance portion formed between the case and the seating portion.

The method of claim 1,
The second resonance unit,
And a sealed space formed by a first cover formed in the carrier module and a first cover coupled to the carrier module to cover the first groove.

The method of claim 2,
The first cover is a mobile terminal, characterized in that formed at least partly stepped to be coupled to the first rib of the carrier module forming the first groove.

The method of claim 2,
The first groove has a guide rod protruding toward the first cover is coupled,
The first cover is a mobile terminal, characterized in that it comprises a guide seating groove to be fitted to the guide rod.

The method of claim 1,
The carrier module,
And a third resonance portion in communication with the first resonance portion to extend the first resonance portion and spaced apart from the second communication portion.

The method of claim 1,
The carrier module,
And a third resonance portion in communication with the second resonance portion to extend the second resonance portion.

The method according to claim 5 or 6,
The third resonance unit,
And a sealed space formed by a second cover formed on the carrier module and a second cover coupled to the carrier module to cover the second groove.

The method of claim 7, wherein
The second cover is,
And at least a portion of the mobile terminal is coupled to the second rib of the carrier module forming the groove.

The method of claim 7, wherein
The second groove has a guide rod protruding toward the second cover is coupled,
The second cover is a mobile terminal, characterized in that it comprises a guide seating groove to be fitted to the guide rod.

The method of claim 1,
And the speaker unit and the first surface are spaced apart from each other, and the space between the speaker unit and the first surface constitutes a part of the first resonance unit.

The method of claim 1,
The carrier module is a mobile terminal, characterized in that formed integrally including a camera unit, a motor and an ear jack.