KR20130088982A

KR20130088982A - Mobile terminal

Info

Publication number: KR20130088982A
Application number: KR1020120010269A
Authority: KR
Inventors: 이혁재
Original assignee: 엘지전자 주식회사
Priority date: 2012-02-01
Filing date: 2012-02-01
Publication date: 2013-08-09

Abstract

PURPOSE: A mobile terminal is provided to enhance space utilization for arrangement of a speaker. CONSTITUTION: A mobile terminal includes a front case; a rear case which is mounted at the front case; a speaker (200) which is arranged in the front case; and a circuit board (180) which is disposed between the front case and the rear case to overlap the speaker and has a through-hole in a region overlapping the speaker.

Description

Mobile Terminal

The present invention relates to a mobile terminal, and more particularly to a mobile terminal that can reduce the manufacturing process and manufacturing costs.

The terminal can move And can be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

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.

Recently, researches for increasing the size and slimming of displays have been continued, and researches for securing various component mounting spaces have been continued in order to implement a composite function as a multimedia device.

In particular, if a speaker that outputs an acoustic signal is arranged, a resonance space must be secured to realize performance, and since other electronic components cannot be placed in the resonance space, the arrangement of the speaker in terms of space utilization for mounting electronic components is large. Raise a constraint.

An object of the present invention is to provide a mobile terminal capable of increasing space utilization for speaker arrangement.

Another object of the present invention is to provide a mobile terminal capable of securing a resonance space of a speaker without reducing an electronic component mounting area.

In addition, the present invention is to solve the problem to provide a mobile terminal having a slim and compact design.

In addition, an object of the present invention is to provide a mobile terminal that can reduce the manufacturing process and manufacturing cost.

Mobile terminal according to an embodiment of the present invention for realizing the above object is a front case; and a rear case mounted on the front case; and a speaker disposed on the front case side; and the front case and the rear so as to overlap the speaker It is disposed between the case, and includes a circuit board having a through hole formed in the overlapping area with the speaker.

The sound output from the speaker is transmitted to the outside through the space between the circuit board and the speaker, through the through hole and the rear case.

The front case may include a speaker mounting unit surrounded by a first partition wall, and a first gasket may be provided between the first partition wall and the circuit board.

In addition, a resonance space surrounded by a second partition wall may be formed in the rear case, and a second gasket may be provided between the second partition wall and the circuit board.

In addition, the through-hole of the circuit board is located in the second partition wall, the rear case may be formed in the sound output hole located in the second partition wall.

In addition, one or more electronic components may be mounted in an area of the circuit board overlapping the speaker, and the electronic components may be located in the inner space of the second partition wall.

As described above, the mobile terminal according to an embodiment of the present invention can increase the space utilization for speaker placement.

In addition, the mobile terminal according to an embodiment of the present invention can secure the resonance space of the speaker without reducing the electronic component mounting area.

In addition, the mobile terminal according to an embodiment of the present invention has a slim and compact design.

In addition, the mobile terminal according to an embodiment of the present invention can reduce the manufacturing process and manufacturing cost.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2 is a front perspective view of a mobile terminal associated with one embodiment of the present invention;
3 is a rear perspective view of a mobile terminal associated with one embodiment of the present invention;
Figure 4 is a rear view of the front case of a mobile terminal according to an embodiment of the present invention.
FIG. 5 is a partial perspective view of the front case shown in FIG. 4. FIG.
6 is a plan view illustrating a circuit board mounted on a front case illustrated in FIG. 4.
7 illustrates a rear case of a mobile terminal according to an embodiment of the present invention.
8 is a partial perspective view of a state in which a mobile terminal according to an embodiment of the present invention is cut away;

Hereinafter, a mobile terminal related 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.

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), and navigation. However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, etc., except when applicable only to mobile terminals.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply 190, and the like. The components shown in FIG. 1 are not essential, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast related information may exist in various forms. For example, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. Wireless Internet technologies may include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

The short range communication module 114 refers to a module for short range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

The position information module 115 is a module for obtaining the position of the mobile terminal, and a representative example thereof is a Global Position System (GPS) module.

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video call mode or the photographing mode. The processed image frame can be displayed on the display 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. In addition, whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to the external device may be sensed. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and may include a display 151, a sound output module 152, an alarm unit 153, and a haptic module 154. have.

The display 151 displays (outputs) information processed in the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display ), And a three-dimensional display (3D display).

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display 151 may also be of a light transmissive structure. With this structure, the user can see the object located behind the terminal body through the area occupied by the display 151 of the terminal body.

There may be two or more displays 151 according to the implementation form of the mobile terminal 100. For example, the plurality of displays may be spaced apart or integrally disposed on one surface of the mobile terminal 100, or may be disposed on different surfaces.

(Hereinafter, referred to as a 'touch screen') in which a display 151 and a sensor (hereinafter, referred to as 'touch sensor') for sensing a touch operation form a mutual layer structure, Can also be used. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display 151 or a capacitance occurring in a specific portion of the display 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display 151 is touched or the like.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is surrounded by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

The proximity sensor 141 detects a proximity touch and a proximity touch pattern (for example, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, and a proximity touch movement state). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The sound output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal may be output through the display 151 or the audio output module 152 so that they may be classified as a part of the alarm part 153. [

The haptic module 154 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 154 is vibration. The intensity and pattern of vibration generated by the haptic module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to vibration, the haptic module 154 may be configured to provide a pin array that vertically moves with respect to the contact skin surface, a jetting force or suction force of air through an injection or inlet port, grazing to the skin surface, contact of an electrode, electrostatic force, and the like. Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable terminal 100.

The memory 160 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 160 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data to the external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

The interface unit may be a passage through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, or various command signals input from the cradle by a user may be transferred. It may be a passage that is delivered to the terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, May be implemented by the control unit 180.

According to a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that perform at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. The software codes are stored in the memory 160 and can be executed by the control unit 180. [

FIG. 2 is a perspective view of a mobile terminal or a portable terminal according to the present invention, as viewed from the front.

The disclosed mobile terminal 100 has a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

The body includes a casing 101, a casing, a housing, a cover, and the like, which constitutes an exterior. In this embodiment, the case 101 may be divided into a front case 102 and a rear case 103. Various electronic components are built in the space formed between the front case 102 and the rear case 103. At least one intermediate case 105 may be further disposed between the front case 102 and the rear case 103.

The cases 101 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).

A display body 151, a sound output unit 152, a camera 121, a user input unit 130/131, 132, a microphone 122, an interface 170, etc. may be disposed in the terminal body, mainly the front case 102. .

The display 151 occupies most of the main surface of the front case 101. The audio output unit 151 and the camera 121 are disposed in regions adjacent to one end of both ends of the display 151, and the user input unit 131 and the microphone 122 are disposed in regions adjacent to the other end. The user input unit 132 and the interface 170 may be disposed on the side surfaces of the front case 101 and the rear case 102. [

The user input unit 130 is operated to receive a command for controlling the operation of the mobile terminal 100 and may include a plurality of operation units 131 and 132. The operation units 131 and 132 may be collectively referred to as a manipulating portion and may be employed in any manner as long as the user operates in a tactile manner.

The contents inputted by the first or second operation unit 131 or 132 may be variously set. For example, the first manipulation unit 131 receives a command such as start, end, scroll, and the like, and the second manipulation unit 132 adjusts or displays the volume of sound output from the sound output unit 152. A command such as switching to the touch recognition mode may be input.

3 is a rear perspective view of the portable terminal shown in FIG.

Referring to FIG. 3, a camera 121 ′ may be additionally mounted on the rear of the terminal body, that is, the rear case 103. The camera 121 ′ has a photographing direction substantially opposite to that of the camera 121 (see FIG. 2), and may be a camera having different pixels from the camera 121.

For example, the camera 121 may have a low pixel so that the face of the user can be photographed and transmitted to the other party in case of a video call or the like, and the camera 121 ' It is preferable to have a large number of pixels. The cameras 121 and 121 'may be installed in the terminal body so as to be rotatable or pop-upable.

A flash 123 and a mirror 124 are further disposed adjacent to the camera 121 '. The flash 123 illuminates the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to illuminate the user's own face or the like when the user intends to shoot himself / herself (self-photographing) using the camera 121 '.

An acoustic output 152 'may be additionally disposed on the rear surface of the terminal body. The sound output unit 152 'may implement the stereo function together with the sound output unit 152 (see FIG. 2A), and may be used for the implementation of the speakerphone mode during a call.

In addition to the antenna for a call or the like, a broadcast signal reception antenna 124 may be additionally disposed on the side of the terminal body. The antenna 124 constituting a part of the broadcast receiving module 111 (see FIG. 1) may be installed to be able to be drawn out from the terminal body.

A power supply unit 190 for supplying power to the mobile terminal 100 is mounted on the terminal body. The power supply unit 190 may be embedded in the terminal body or may be directly detachable from the outside of the terminal body. In addition, the case 101 may further include a cover member 104 surrounding the power supply unit, and the cover member 104 may be detachably mounted to the rear case 103.

The rear case 103 may additionally be equipped with a touch pad for sensing a touch. Like the display 151, the touch pad may also be configured to be light transmissive. In this case, if the display 151 is configured to output visual information from both sides, the visual information can be recognized through the touch pad. The information output on both surfaces may be controlled by the touch pad. Alternatively, a display may be additionally attached to the touch pad, and the touch screen may also be disposed on the rear case 102.

The touch pad works in conjunction with the display 151 of the front case 102. The touch pad may be disposed parallel to the rear of the display 151. The touch pad may have a size equal to or smaller than that of the display 151.

4 is a rear view of a front case of a mobile terminal according to an embodiment of the present invention, FIG. 5 is a partial perspective view of the front case shown in FIG. 4, and FIG. 6 is a circuit board mounted on the front case shown in FIG. 4. 7 is a plan view illustrating a rear case of a mobile terminal according to an embodiment of the present invention, and FIG. 8 is a partial perspective view of a state in which the mobile terminal according to an embodiment of the present invention is cut out.

As described above, the sound output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, or the like. have. The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The sound output module 152 may include a receiver, a speaker 200, a buzzer, and the like.

The sound output module 152 needs to have a predetermined resonance space, and in some cases, the functions of the speaker and the receiver may be performed together with one electronic component.

The mobile terminal 100 according to the present invention includes a front case 101, a rear case 102 mounted on the front case 101, a sound output module 152 disposed on the front case 101, and the sound. A circuit board 180 disposed between the front case 101 and the rear case 102 to overlap the output module 152 and having a through hole 182 formed in an overlapping area with the sound output module 152. It includes.

Herein, the sound output from the sound output module 152 is transmitted to the outside through the space between the circuit board 180 and the sound output module 152, the through hole 182, and the rear case 102. In addition, the circuit board 180 represents the above-described control unit.

The present invention can be applied to all of the various sound output modules 152 and 152 'such as a speaker, a receiver, etc., to which a resonance space is to be secured. For example, the speaker 200 may also function as a receiver.

In addition, the speaker 200 may be output to the outside through the through hole 182 and the rear case 102 of the circuit board 180, the output sound in the state disposed on the front case 101 side, The sound output in the state disposed on the rear case 102 side may be transmitted to the outside through the through hole 182 and the front case 101 of the circuit board 180. An example will be described.

The mobile terminal 100 according to an embodiment of the present invention includes a front case 101, a rear case 102 mounted on the front case 101, and a speaker 200 disposed on the front case 101 side. The circuit board 180 is disposed between the front case 101 and the rear case 102 to overlap the speaker 200, and has a through hole 182 formed in the overlapping area A of the speaker 200. It includes.

The sound output from the speaker 200 is transmitted to the outside through the space between the circuit board 180 and the speaker 200, the through hole 182, and the rear case 102.

4 and 5, the front case 101 may be provided with a speaker mounting unit 105 surrounded by the first partition wall 103. The first partition 103 may have a shape corresponding to the shape of the speaker 200, and the first partition 103 may have one surface (the opposite surface of the sound output unit) of the speaker 200 in the front case 101. It may have a shape surrounding the side portion of the speaker 200 in a state supported by). In addition, the first partition 103 may have a completely closed curved structure so that sound does not leak out.

6 and 8, the circuit board 180 is assembled in contact with the first partition wall 103, and the first partition wall 103 and the circuit board (not to lose sound pressure). The first gasket 210 may be provided between the 180. Therefore, when the circuit board 180 is assembled in the state in which the speaker 200 is mounted on the speaker mounting unit 106, the speaker 200 has a stack structure in which the circuit board 180 and the partial region A overlap. Will be achieved.

In addition, since the free end 104 of the first barrier rib 103 and one surface of the circuit board 180 are in close contact with each other through the first gasket 210, sound pressure loss does not occur in the speaker mounting unit 106. Instead, the sound output from the speaker 200 passes through the through hole 182 of the circuit board 180. In addition, a predetermined space portion may be formed between the speaker 200 and the circuit board 180, and the sound output from the speaker 200 is between the speaker 200 and the circuit board 180. It passes through a predetermined space and the through hole 182 of the circuit board 180.

In addition, the first gasket 210 may have a shape corresponding to the shape of the free end 104 of the first partition wall 103.

Meanwhile, reference numeral 101a denotes a mounting protrusion for coupling with the rear case, and the mounting protrusion 101a is spaced apart from the first partition 103 at a predetermined interval.

Referring to FIG. 6, the overlap region A represents a partial region of the circuit board 180 divided by the first partition 103. In the overlapping area A of the circuit board 180, a through hole 182 is provided to transmit sound output from the speaker 200 to the rear case 102, and a circuit overlapping the speaker 200. One or more electronic components 183 are mounted in an area of the substrate 180. In addition, the electronic component 183 may include various circuit parts and terminal parts.

Referring to FIG. 7, a resonance space 107 surrounded by a second partition 106 is formed in the rear case 102, and a second gasket is formed between the second partition 106 and the circuit board 180. 220 may be provided.

7 and 8, the second partition 106 may be formed such that the cross-sectional area of the space in which the second partition 106 is formed is equal to or larger than the cross-sectional area of the space formed by the first partition 104. Alternatively, it may be formed to be smaller than the cross-sectional area of the space formed by the first partition (104).

In addition, the sound output hole 108 may be formed in the resonance space formed by the second partition 106 to transmit the sound passing through the through hole 182 of the circuit board 180 to the outside. The second partition wall 106 may have a completely closed curved structure so that sound does not leak to other areas except the sound output hole 108.

Referring to FIGS. 7 and 8, the circuit board 180 is assembled in contact with the second partition wall 106, and the second partition wall 106 and the circuit board 180 do not lose sound pressure. The second gasket 220 may be provided therebetween. Accordingly, when the rear case 102 is assembled to the front case 101, the speaker 200, the circuit board 180, and the resonance space 107 on the rear case side overlap with each other to form a stack structure.

In addition, since the free end of the second partition wall 106 and one surface of the circuit board 180 are in close contact with each other through the second gasket 220, the sound pressure loss does not occur in the second partition wall 106. The sound output from the speaker 200 passes through the through hole 182 of the circuit board 180 and is transmitted to the outside through the sound output hole 108 through the resonance space 107 on the rear case 102 side. .

For convenience of description, a space between the speaker 200 and the circuit board 180 is referred to as a first resonance space, and a space formed by a second partition wall is referred to as a second resonance space. 1 gasket 210, the first partition 103 and one surface of the circuit board 180 to form a complete closed space, the sound output from the speaker 200 is a through hole 182 of the circuit board 180 Can only be transferred to the second resonance space.

In addition, the second resonance space forms a complete closed space by one surface of the second partition 106, the second gasket 220, and the circuit board 180, and the sound introduced through the through hole 182. May be transmitted to the outside only through the sound output hole 108.

As described above, at least one electronic component 183 is mounted in the area A of the circuit board 180 overlapping the speaker 200, and the electronic component 183 is the second partition 106. It can be located in the interior space, since a portion of the resonance space of the speaker 200 is used as the mounting space of the electronic component can reduce the generation of invalid space.

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.

100: mobile terminal 101: front case
102: rear case 103: first partition wall
105: speaker mounting portion 106: second partition wall
108: sound output hole 180: circuit board
182: through hole 183: electronic components
200: speaker 210: first gasket
220: second gasket A: overlap region

Claims

Front case;
A rear case mounted to the front case;
A speaker disposed at the front case side;
A circuit board disposed between the front case and the rear case to overlap the speaker, the circuit board having a through hole formed in an overlapping area with the speaker,
And the sound output from the speaker is transmitted to the outside through the space between the circuit board and the speaker, through the through hole, and the rear case.

The method of claim 1,
The front case is provided with a speaker mounting portion surrounded by a first partition,
And a first gasket is provided between the first partition wall and the circuit board.

3. The method of claim 2,
In the rear case a resonance space surrounded by the second partition is formed,
A mobile terminal, characterized in that a second gasket is provided between the second partition wall and the circuit board.

The method of claim 3, wherein
The through hole of the circuit board is located inside the second partition wall,
And a sound output hole located in the second partition wall in the rear case.

The method of claim 4, wherein
At least one electronic component is mounted in an area of the circuit board overlapping a speaker, and the electronic component is located in the second partition wall inner space.