KR20130088614A - Mobile terminal - Google Patents

Abstract

PURPOSE: A mobile terminal is provided to diffuse heat generated within a terminal body, thereby lowering internal temperature. CONSTITUTION: A circuit board is disposed in the lower part of a support frame. The circuit board controls signals. An electronic device (281) is disposed on one surface facing the support frame of the circuit board. The electronic device emits heat. A heat transfer member (300) contacts at least a part of the electronic device by being extended from the support frame. The heat transfer member transfers the heat to the support frame.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal comprising a device for emitting terminal heat.

A mobile terminal is a portable electronic device that is portable and has one or more functions of voice and video call function, information input / output function, and data storing function.

As the functions of the mobile terminal are diversified, the mobile terminal is implemented in the form of a multimedia device having complicated functions such as photographing and photographing of a moving picture, reproduction of a music or video file, and reception of a game and a broadcast.

Various new attempts have been made in terms of hardware or software to implement the complex functions of multimedia devices.

In addition, mobile terminals are regarded as personal items for expressing their individuality, and various design forms are required. The design form also includes structural changes and improvements for the user to more conveniently use the mobile terminal.

Recently, as the functions of the mobile terminal are diversified, various types of electronic devices are arranged inside the main body of the terminal, and some of them generate heat. Some of the heat is released to the outside, but the remainder remains inside the terminal body. Heat remaining in the main body of the terminal becomes a problem by locally warming the terminal or by raising the temperature of another electronic element.

Accordingly, the technical problem of the present invention is to provide a mobile terminal which reduces internal temperature by diffusing heat generated inside the terminal body.

In order to achieve the object of the present invention, a mobile terminal according to an embodiment of the present invention includes a support frame, a circuit board, an electronic device and a heat transfer member. The support frame is disposed inside the main body of the terminal and formed to support the display unit. The circuit board is disposed under the support frame and controls the signal. The electronic device is disposed on one surface of the circuit board facing the support frame and emits heat. The heat transfer member extends from the support frame and contacts at least a portion of the electronic device to transfer the heat to the support frame.

As an example related to the present invention, the heat transfer member protrudes from the support frame and is integrally formed with the support frame.

As an example related to the present invention, the heat transfer member is formed of a magnesium material.

As an example related to the present invention, the heat transfer member is formed to cover the exposed electronic devices so as to shield the electronic devices from electromagnetic waves.

As an example related to the present invention, one surface of the heat transfer member has a recessed portion recessed in a shape corresponding to the electronic device so that the electronic device is inserted.

As an example related to the present invention, the mobile terminal includes a shield member formed to cover the electronic device so as to shield the electronic devices from electromagnetic waves.

As an example related to the present invention, the shield member includes an opening formed through the heat transfer member.

As an example related to the present invention, a heat radiating member is formed between the heat transfer member and the electronic device to transfer the heat to the heat transfer member.

As an example related to the present invention, the heat transfer member is formed to overlap the display unit. The thickness of the heat transfer member is formed thicker closer to the electronic device.

As an example related to the present invention, the mobile terminal includes a case constituting an appearance of the terminal body. The support frame is coupled to the case to release the heat to the outside of the terminal body.

As an example related to the present invention, the support frame is coupled to the case so that the edge of the support frame is exposed to the outside of the terminal body.

According to the present invention, the heat does not remain inside the main body of the terminal by the heat transfer member disposed inside the mobile terminal and in contact with the electronic device generating heat.

Therefore, by lowering the temperature inside the terminal, dispersing the heat to prevent local heating of the internal structure, it is possible to improve the function of the elements disposed inside the terminal and to prevent the heat of the appearance of the mobile terminal.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention;
FIG. 2A is a perspective view of a mobile terminal according to an exemplary embodiment of the present invention. FIG.
FIG. 2B is a rear perspective view of the mobile terminal shown in FIG. 2A. FIG.
3 is an exploded view of the mobile terminal of FIG. 2B;
4A to 4C are cross-sectional views of the mobile terminal of FIG. 3 taken along AA according to each embodiment.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. 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), and navigation. However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

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 Broadcast-Handheld (ISDB-T), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. 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 unit 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 for generating output related to the visual, auditory or tactile sense and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154 .

The display unit 151 displays (outputs) information processed by 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 unit 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 display, and a 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 unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another or may be disposed integrally with each other, or may be disposed on different surfaces.

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 151 may be configured in addition to an output device. Can also be used as an input device. 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 unit 151 or a capacitance generated in a specific portion of the display unit 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. As a result, the controller 180 can know which area of the display unit 151 is touched.

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 detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). 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 unit 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153.

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

In addition to the vibration, the haptic module 154 may be used for stimulation such as a pin array vertically moving with respect to the contact skin surface, a jetting force or suction force of air through an injection or inlet, grazing to the skin surface, contact of an electrode, and electrostatic force. 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.

When the mobile terminal 100 is connected to an external cradle, the interface unit 170 may be a path through which power from the cradle is supplied to the mobile terminal 100, or various commands A signal may be a path through which the signal is transmitted to the mobile 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 external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

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 include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions. The described embodiments may be implemented by the controller 180 itself.

According to the software implementation, embodiments such as the procedures and functions described herein may be implemented as separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the memory 160 and can be executed by the control unit 180. [

2A is a perspective view of a mobile terminal according to an embodiment of the present invention. 2B is a rear perspective view of the mobile terminal shown in FIG. 2A.

Referring to FIGS. 1, 2A and 2B, the mobile terminal 200 includes 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, and a swing type in which two or more bodies are coupled to be movable relative to each other. Further, the mobile terminal described herein may be any portable electronic device having a camera and flash, for example, a mobile phone, a smart phone, a notebook computer, a digital broadcast terminal, a Personal Digital Assistants ), A PMO (Portable Multimedia Player), and the like.

The terminal body includes a case (which may be referred to as a casing, a housing, a cover, and the like) that forms an appearance. The case includes a front case 201, a rear case 202 covering a surface opposite to the front case, and a battery cover 203 coupled to the rear case 202 to form an exterior of the mobile terminal. Various electronic components are embedded in the space formed between the front case 201 and the rear case 202. The cases may be formed by injecting 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 surface of the terminal body includes a display unit 210, a first sound output unit 211, a signal input unit 217 and a front camera unit 216.

The display unit 210 includes an LCD (Liquid Crystal Display) module, an OLED (Organic Light Emitting Diodes) module, and an e-paper for visually expressing information. The display unit 210 may include touch sensing means for inputting data by a touch method. Hereinafter, the display unit 210 including the touch sensing unit will be referred to as a 'touch screen'. If any one of the touches on the touch screen 210 is touched, the contents corresponding to the touched position are input. The content input by the touch method may be a letter or a number, an instruction in various modes, a menu item which can be designated, and the like. The touch sensing means is formed in a translucent manner so that the display portion can be seen, and a structure for enhancing the visibility of the touch screen in a bright place may be included. 2A, the touch screen 210 occupies most of the front surface of the front case 201. [

The first sound output unit 211 may be implemented as a receiver for delivering a call sound to a user's ear or a loud speaker for outputting various alarm sounds or multimedia playback sounds.

The front camera unit 216 processes an image frame such as a still image or a moving image obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 210. [

The image frame processed by the front camera 216 can be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ The front camera 216 may be provided in two or more depending on the use environment.

The signal input unit 230 is operated to receive a command for controlling the operation of the mobile terminal 200 and may include a plurality of input keys. The input keys may also be referred to as a manipulating portion and may be employed in any manner as long as the user has a tactile sense and operates in a tactile manner.

For example, a dome switch or touch screen capable of receiving a command or information by a push or touch operation of a user, a touch pad, or a wheel, a jog type or a joystick for rotating a key . The contents input by the signal input unit 230 can be variously set. For example, to enter start, end, scroll, and the like.

Side keys 214, an interface unit 225, a sound input unit 213, and the like are disposed on side surfaces of the front case 201.

The side key 214 may be collectively referred to as an operation unit and is capable of receiving a command for controlling the operation of the mobile terminal 200. The side key 214 may be employed in any manner as long as the user is operating in a tactile manner with a tactile impression. The content input by the side key 214 can be variously set. For example, by the side key 214, it is possible to control the image input units 216 and 221, adjust the size of the sound output from the sound output unit 211, or switch the display unit 210 to the touch recognition mode Command can be input.

The sound input unit 213 may be implemented, for example, in the form of a microphone to receive a user's voice, other sounds, and the like.

The interface units 215 and 225 serve as a passage for allowing the mobile terminal 200 according to the present invention to exchange data with an external device. For example, the interface units 215 and 225 are wired or wireless, and a connection terminal for connecting with an earphone, a port for short-range communication (for example, an infrared port (IrDA port), a Bluetooth port, a wireless LAN) Port (Wireless LAN Port) or the like, or at least one of power supply terminals for supplying power to the mobile terminal 200. The interface units 215 and 225 may be implemented in the form of a socket for receiving an external card such as a subscriber identification module (SIM) or a user identity module (UIM) or a memory card for storing information.

On the rear of the terminal body, a power supply unit 240 (see FIG. 3) and a rear camera unit 221 are disposed.

A flash 223 is disposed adjacent to the rear camera unit 221. The flash 223 may be disposed adjacent to the rear camera unit 221. The flash 223 illuminates the subject toward the subject when the subject is photographed by the rear camera unit 221.

A mirror 224 may be disposed adjacent to the flash 224. The mirror allows the user to illuminate the user's own face or the like in the case where the user intends to photograph (self-photograph) himself / herself by using the rear camera unit 221. [

The rear camera unit 221 may have a photographing direction substantially opposite to that of the front camera unit 216 disposed on the front side and may be a camera having different pixels from the front camera unit 216. [

For example, the front camera unit 216 has low pixels so that it is easy to capture a face of a user in the case of a video call or the like and transmit the face to the other party. The rear camera unit 221 photographs a general subject and immediately transmits It is preferable to have a high pixel. The front and rear camera units 216 and 221 may be installed in the terminal body in a rotatable or pop-up manner.

The battery 240 supplies power to the mobile terminal 200. The battery 240 may be built in the terminal body or may be directly detachable from the outside of the terminal body.

3 is an exploded view of the mobile terminal of FIG. 2B.

Referring to FIG. 3, the mobile terminal includes a front case 201, a display 210, a circuit board 282, first and second shield members 291 and 292, an electronic device 281, and a support frame ( 204, rear case 203 and battery 240.

The battery 240 is mounted to the rear case 202 to supply power to the mobile terminal. The battery 240 may be formed to be detachable. The battery cover 203 is mounted to cover the battery 240.

The display unit 210 includes a display panel 210b and a window 210a that covers the display panel 210b and forms a front surface of the mobile terminal. The display unit 210 is accommodated in the front case 201.

The circuit board 282 is formed between the rear case 202 and the display unit 210. At least one electronic device 281 is formed on the circuit board 281, and is electrically connected thereto to transmit a signal.

The electronic device 281 may be formed on both surfaces of the circuit board 282. That is, the electronic device may be formed to face the battery 240 or to face the display unit 210.

The first and second shield members 291 and 292 are formed to cover both surfaces of the circuit board 282. The first and second shield members 291 and 292 may be formed of stainless steel (STS). The first and second shield members 291 and 292 are electrically connected to the circuit board 282 to shield electronic devices mounted on the circuit board 282 from electromagnetic waves.

The first and second shield members 291 and 292 are formed to cover the peripheral area of the electronic device 281 and do not contact the electronic device 281. In addition, the outer surfaces of the first and second shield members 291 and 292 are formed so as not to contact other components inside the main body of the terminal.

The electronic device 281 may be a heat generating device that emits heat when performing a function by transmitting and receiving a signal. The heat remains inside the terminal body by convection or conduction or is released outside the terminal body.

However, according to the embodiment of the present invention, the heat is transferred to the support frame 204. Hereinafter, the structure in which the heat is released to the support frame 204 will be specifically discussed.

The support frame 204 is formed to support the display unit 210. That is, the support frame 204 may be formed in a plate shape so as to overlap the display unit 210. The first shield member 291 is formed to face the first shield member 291. The support frame 204 may be formed to overlap the display unit 210. The support frame 204 may be formed of metal.

The heat transfer member 300 which transfers heat generated from the electronic device 291 to the support frame 204 is formed to protrude from the support frame 204. The heat transfer member 300 is formed to contact at least one surface of the electronic device 291. The heat is transferred to the support frame 204 formed into the plate shape.

The heat transfer member 300 may be formed of a metal having good thermal conductivity. The heat transfer member 300 may be integrally formed with the support frame 204, and the heat transfer member 300 and the support frame 204 may be formed of the same material.

For example, it may be formed of a magnesium (Mg) material. The heat transfer member 300 and the support frame 204 may be formed by a diecasting method.

Therefore, since heat is transferred to the support frame 204 having a relatively large area, the heat is widely distributed, thereby preventing a problem of locally heating the inside of the terminal body. Therefore, the heat can be prevented from being transmitted to other components other than the electronic device, and the heat feeling felt by the user who is in contact with the mobile terminal can be reduced.

The support frame 204 is coupled to the rear case 202 which is configured to form the exterior, that is, the side of the mobile terminal 200. Heat transferred to the support frame 204 may be transferred to the rear case 202 and discharged to the outside.

Meanwhile, the rear case 202 and the front case 201 may be coupled to the edge of the support frame 204 to form a side surface of the mobile terminal 200. That is, the edge of the support frame 204 may be exposed to the outside, so that the heat is released to the outside. In addition, the case constituting the side surface can be formed of a metal having good heat transfer properties.

Since the support frame 204 transfers the heat to the outside of the mobile terminal and there is no space between the support frame 204 and the electronic device 281, the amount of heat remaining in the terminal can be reduced. have. Therefore, the performance of the heat generating electronic device can be improved.

Hereinafter, the structure in which the heat transfer member 300 is coupled to the electronic device 281 will be described in detail.

4A to 4C are cross-sectional views taken along the line A-A of the mobile terminal of FIG. 3 according to each embodiment.

3 and 4A, an opening 291 ′ is formed in the first shield member 291 in the electronic device 291 through the heat transfer member 300.

The opening 291 ′ is formed to be substantially the same as the cross-sectional shape of the heat transfer member 300 so that the electronic device 281 is covered by the heat transfer member 300 and the first shield member 291. Do.

The heat transfer member 300 may be formed to cover all of the remaining regions except for the zero contact with the circuit board 282 of the electronic device 281. That is, one surface of the heat transfer member 300 is formed with a depression 301 is formed to correspond to the electronic device 281 so that the electronic device 281 is inserted.

Therefore, heat emitted by the electronic device 281 inserted into the recess 301 is transferred to the circuit board 282 and the heat transfer member 300. Therefore, the circuit board 281 and the heat transfer member 300 are transferred to the circuit board 281 through conduction by contact without remaining in the empty space around the electronic device 281. Accordingly, the temperature of the peripheral region of the electronic device 281 can be reduced.

In addition, heat emitted by the electronic device formed on the circuit board 282 to face the battery cover 240 is also transmitted to the heat transfer member 300 through the circuit board 282. Therefore, heat transmitted to the rear surface of the mobile terminal is reduced, thereby reducing the heat feeling of the rear surface of the mobile terminal.

The heat transfer member 300 may be in contact with the circuit board 281. Therefore, at least a part of the heat emitted by the electronic elements formed on both surfaces of the circuit board 281 may be transferred to the heat transfer member 300.

In the drawing, the heat transfer member 300 is illustrated to surround one electronic device 281, but the present invention is not limited thereto, and a plurality of recesses 301 may be formed to contact the plurality of electronic devices 281. Can be formed.

The heat dissipation member 310 is formed between the heat transfer member 300 and the electronic device 281. It may be formed on at least one surface of the electronic device 281. The heat dissipation member 310 is formed of a material having good heat transfer to improve the thermal conductivity from the electronic device 281 to the heat transfer member 300.

The heat dissipation member 310 may be formed of a thermal grease or a thermal pad.

According to the present embodiment, the electronic device 281 that generates heat is transferred to the support frame 204 having a large area through the heat transfer member 300. Thus, it is prevented from heating locally. In addition, the support frame 204 may be combined with a case constituting the exterior to release the heat to the outside of the mobile terminal to lower the temperature inside the main body of the terminal.

It is possible to improve the performance of the electronic device and reduce the heat feeling outside the mobile terminal.

3 and 4B, the mobile terminal according to the present embodiment includes the same components as the mobile terminal of FIG. 4A except for the shape of the support frame 204. The description of the same components is replaced with the description of FIG. 4A.

The support frame 204 is formed thicker as it is closer to the electronic device 281 coupled to the heat transfer member 300. When heat is generated in the electronic device 281, an area close to the electronic device 281 of the support frame 204 is heated, and the heat is gradually dispersed.

Since the support frame 204 in the region close to the electronic device 281 is formed relatively thick, a sudden temperature change can be prevented. Therefore, the temperature change of the heating unit 210 may be reduced, thereby improving performance of the display unit 210.

In addition, the thickness of a region far from the electronic device 281 of the support frame 204 may be formed relatively thin to prevent the overall weight improvement of the mobile terminal.

Referring to FIG. 4C, except for the arrangement structure of the first shield member 291 and the heat transfer member 300, the same components as those of the mobile terminal of FIG. 4A are included, and the description of the components will be described with reference to FIG. 4A. Replace it.

The first shield member 291 and the heat transfer member 300 are formed to be spaced apart from each other. That is, the first shield member 291 does not cover the electronic device 281, and only the heat transfer member 300 covers the electronic device 281.

Accordingly, the heat transfer member 300 is formed to shield the electronic device 281 against external electromagnetic waves.

The heat transfer member 300 according to the present embodiment may be formed relatively thick, so that the thermal conductivity may be improved to lower the internal temperature. In addition, it is possible to solve a problem such as electromagnetic waves penetrating into the gap between the heat transfer member 300 and the shield member 291.

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 (11)

A support frame disposed inside the main body of the terminal and configured to support the display unit;
A circuit board disposed under the support frame and controlling a signal;
An electronic device disposed on one surface of the circuit board facing the support frame and dissipating heat;
And a heat transfer member extending from the support frame and in contact with at least a portion of the electronic element to transfer the heat to the support frame. The mobile terminal of claim 1, wherein the heat transfer member protrudes from the support frame and is integrally formed with the support frame. The mobile terminal of claim 2, wherein the heat transfer member is formed of a magnesium material. The mobile terminal of claim 1, wherein the heat transfer member is formed to cover the exposed electronic devices so as to shield the electronic devices from electromagnetic waves. The mobile terminal of claim 4, wherein one surface of the heat transfer member includes a depression recessed in a shape corresponding to the electronic device so that the electronic device is inserted therein. The mobile terminal of claim 1, further comprising a shield member formed to cover the electronic elements so as to shield the electronic elements from electromagnetic waves. The mobile terminal of claim 6, wherein the shield member comprises an opening formed to allow the heat transfer member to pass therethrough. The mobile terminal of claim 1, wherein a heat dissipation member for transferring the heat to the heat transfer member is formed between the heat transfer member and the electronic element. The method of claim 1, wherein the heat transfer member is formed to overlap the display unit,
The thickness of the heat transfer member is a mobile terminal, characterized in that the closer to the electronic device. The method of claim 1,
It includes a case constituting the appearance of the terminal body,
And the support frame is coupled to the case to release the heat to the outside of the terminal body. The mobile terminal of claim 10, wherein the support frame is coupled to the case such that an edge of the support frame is exposed to the outside of the terminal body.

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