KR101943315B1 - Mobile terminal and Assembling method of a mobile terminal - Google Patents

Abstract

The present invention relates to a fastening method for a mobile terminal and a mobile terminal, and a mobile terminal of the present invention includes a window panel, a front case to which the window panel is bonded to the upper portion, a rear case to be coupled to a lower portion of the front case, And a fastening member for fastening the window panel, the front case and the rear case to each other through fastening of the bolts. The mobile terminal of the present invention can increase the coupling force with the window panel, the front case, and the rear case by using the fastening member. Particularly, the joining force between the window panel and the front case is increased to prevent lifting of the window panel, and the window panel does not fall off from the front case even under high temperature and high humidity.

Description

[0001] The present invention relates to a mobile terminal and an assembling method of a mobile terminal,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastening method of a mobile terminal and a mobile terminal, and more particularly, to a fastening method of a mobile terminal and a mobile terminal having improved durability by joining a window panel, a front case and a rear case through fastening members.

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.

Conventionally, a double-sided tape or a thermally fused tape was used to join the window panel to the upper part of the front case. That is, the double-sided tape or the thermally fused tape is attached to the edge of the window panel to join the window panel to the front case.

However, the method of attaching the window panel using the double-sided tape has a problem that the adhesive force of the double-sided tape is low, and the physical properties of the double-sided tape easily change under high temperature and high humidity. On the other hand, the method using the heat-seal tape has a problem that the process is complicated and the manufacturing process time is prolonged because the adhesive force is excellent but it must be heated, hardened, and pressed (clamping).

It is an object of the present invention to provide a fastening method of a mobile terminal and a mobile terminal having improved durability by firmly fastening a window panel, a front case and a rear case of the mobile terminal, .

According to another aspect of the present invention, there is provided a mobile terminal including a window panel, a front case having one side of the window panel bonded to the upper side and having a first hole for fastening with the window panel, A rear case coupled to the front case at a lower portion of the front case and having a second hole at a position corresponding to the first hole and a rear case attached to one surface of the window panel corresponding to the first hole to be inserted into the first hole, And a fastening member engaged with the bolt through the second hole to join the window panel, the front case, and the rear case.

The present invention is characterized in that the fastening member includes a support portion attached to the window panel and a boss portion extending vertically from the support portion and having a fastening hole for fastening the bolt.

Further, the present invention is characterized in that a plurality of bonding holes are formed in the supporting portion of the fastening member.

Further, the present invention is characterized in that the joint hole formed in the support portion has a smaller inner diameter in the direction of the joining surface with the window panel.

Further, the present invention is characterized in that the fastening member is bonded to the window panel by a heat-seal tape.

In the present invention, when the fastening member and the window panel are heated and bonded to each other with a thermally fusible tape, the thermally fusible tape whose viscosity is lowered by heating flows into a bonding hole formed in the supporting portion and is cured, And are joined together.

In addition, the present invention is characterized by including four fastening members respectively attached to the edges of one side of the window panel.

Further, the present invention is characterized in that the window panel is bonded to the upper part of the front case by a double-sided tape.

In addition, the present invention is characterized in that the fastening member is made of stainless steel (SUS).

According to another aspect of the present invention, there is provided a method of fastening a mobile terminal, the method comprising the steps of: joining a fastening member to one side of a window panel; inserting the fastening member into a first hole formed in a front case; Assembling the inner part to the lower part of the front case and positioning the second hole formed in the rear case to correspond to the first hole and fastening the bolt to the fastening member through the second hole And coupling the rear case to a lower portion of the front case.

According to the present invention, the step of bonding the fastening member may include a step of inserting a thermally fused tape between one surface of the window panel and the fastening member to heat and press the fastening member at a temperature in the range of 80 ° C <T1 < Heating and pressing the window panel with the fastening member held thereon at a temperature in the range of 100 ° C <T2 <120 ° C to make the fastening member in contact with the fastening member; and drying the window panel to which the fastening member is bonded, And a step of curing the fusion tape.

In addition, the present invention is characterized in that the fastening member includes a support portion attached to the window panel and formed with a plurality of joint holes, and a boss portion extending vertically from the support portion and having a fastening hole for fastening the bolt, The heat-sealing tape having a lowered viscosity by heating on the base plate flows into the bonding hole formed in the supporting portion and is hardened, whereby the fastening member and the window panel are bonded.

The joining of the window panel to the upper portion of the front case may be performed by bonding a rim of the window panel and an upper portion of the front case using a double-sided tape.

According to the present invention, since the fastening member is attached to the window panel to fasten the bolt to the fastening member after assembling the window panel, the front case and the rear case, the window panel, the front case and the rear case are firmly coupled to each other, Can be improved.

According to the present invention, since the window panel is bonded to the upper part of the front case using the double-sided tape and the bolts are fastened to the fastening member attached to the window panel, the fastening force between the window panel and the front case is improved Thereby preventing lifting of the window panel.

According to the present invention, when a joining hole is formed in the supporting portion of the fastening member and the joining member is heated and bonded to the window panel by the heat-sealing tape, the heat-sealing tape flows and hardens in the joining hole, The bonding force can be increased.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2A is a front perspective view of a mobile terminal according to an embodiment of the present invention.
2B is a rear perspective view of a mobile terminal according to an embodiment of the present invention.
3 is a perspective view illustrating a state of engagement of a mobile terminal in a front side thereof according to an embodiment of the present invention.
FIG. 4 is a perspective view illustrating a coupled state of the mobile terminal of FIG. 3 on the back side of the mobile terminal.
5 is a plan view of a rear surface of a window panel according to an embodiment of the present invention.
6 to 7C are perspective views illustrating a modified example of the fastening member according to an embodiment of the present invention.
8 is a cross-sectional view and a partially enlarged view of a mobile terminal according to an embodiment of the present invention.
FIG. 9 is a perspective view and a partial enlarged view showing a state in which a window panel and a front case are joined together according to an embodiment of the present invention.
10 to 13 are perspective views illustrating a fastening method of a mobile terminal according to an embodiment of the present invention in order.

Hereinafter, an air conditioner according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

In addition, the same or corresponding components are denoted by the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. For convenience of explanation, the size and shape of each constituent member shown may be exaggerated or reduced have.

On the other hand, terms including an ordinal number such as a first or a second may be used to describe various elements, but the constituent elements are not limited by the terms, and the terms may refer to a constituent element from another constituent element It is used only for the purpose of discrimination.

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 broadcast signals 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, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) 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. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

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 communication 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 / static), 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 is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor.

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.

(Hereinafter, referred to as a 'touch screen') in which a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') form a mutual layer structure, It 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. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

Also, a proximity sensor may be disposed in the inner area of the mobile terminal or in the vicinity of the touch screen, which is wrapped 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 type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type 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 recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as " proximity touch & The act of actually touching the pointer on the screen is called " contact touch. &Quot; 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 audio 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 mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, 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. A typical example of the haptic effect generated by the haptic module 154 is vibration. 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 include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

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. At least two haptic modules 154 may be provided according to the configuration of the mobile 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 may be a path through which power from the cradle is supplied to the mobile terminal 100, or various command signals input by the user to the cradle may be transmitted It can be a passage to be transmitted 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 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 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. [

2A is a perspective view of a mobile terminal according to an embodiment of the present invention.

The disclosed mobile terminal 100 has a terminal body in the form of a bar. 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 case (a casing, a housing, a cover, and the like) which forms an appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be additionally disposed between the front case 101 and the rear case 102. [

The cases may be formed by injection molding a synthetic resin, or may be formed to have a metal material such as stainless steel (STS) or titanium (Ti) or the like.

The display unit 151, the sound output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, the interface 170, and the like may be disposed in the front body 101 have.

The display unit 151 occupies most of the main surface of the front case 101. A sound output unit 151 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area 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 operation unit 131 receives commands such as start, end, scroll, and the like, and the second operation unit 132 controls the size of the sound output from the sound output unit 152 or the size of the sound output from the display unit 151 To the touch recognition mode of the touch screen.

2B is a rear perspective view of the mobile terminal shown in FIG. 2A.

Referring to FIG. 2B, a camera 121 'may be further mounted on the rear surface of the terminal body, that is, the rear case 102. The camera 121 'may have a photographing direction substantially opposite to the camera 121 (see FIG. 2A), 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 additionally 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 back 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 built in the terminal body or may be detachable from the outside of the terminal body.

The rear case 102 may further include a touch pad 135 for sensing a touch. The touch pad 135 may also be of a light transmission type like the display unit 151. [ In this case, if the display unit 151 is configured to output time information on both sides, the time information can be recognized through the touch pad 135 as well. The information output on both sides may be all controlled by the touch pad 135. [ Alternatively, a display may be additionally mounted on the touch pad 135, and a touch screen may be disposed on the rear case 102 as well.

The touch pad 135 operates in correlation with the display portion 151 of the front case 101. The touch pad 135 may be disposed parallel to the rear of the display unit 151. The touch pad 135 may have a size equal to or smaller than that of the display unit 151.

The mobile terminal 100 related to the present invention has been described in terms of the functional components and the arrangement of the respective components. Hereinafter, with reference to FIG. 3, the mobile terminal related to the present invention will be described in more detail from the viewpoint of the components according to the outline.

Hereinafter, among various types of mobile terminals such as a folder type, a bar type, a swing type, and a slider type, a bar type mobile terminal having a front touch screen will be described as an example for convenience of explanation. However, the present invention is not limited to a bar-type mobile terminal but can be applied to all types of mobile terminals including the above-mentioned types, and the same or similar constituent members as those described with reference to Figs. 1 to 2B are the same or similar The reference numerals are given, and redundant description is omitted.

A mobile terminal of the present invention includes a window panel, a front case to which the window panel is bonded to an upper portion, a rear case to be coupled to a lower portion of the front case, and a rear case attached to one side of the window panel, And a fastening member coupling the rear case. In the mobile terminal according to the present invention, the coupling force between the window panel, the front case, and the rear case can be increased by using the fastening member. Particularly, the joining strength between the window panel and the front case is increased to prevent lifting of the window panel, and the window panel does not fall off the front case even under high temperature and high humidity. Hereinafter, the present invention will be described in detail with reference to the drawings.

3 and 4 are exploded perspective views of a mobile terminal according to the present invention. FIG. 4 is a perspective view showing the coupled state of the mobile terminal in the back direction of the mobile terminal. Referring to FIG.

Here, one surface of the window panel 200 is a portion joined to the upper portion of the front case 101, and the other surface of the window panel 200 is a portion directly touching the user. At this time, at least one fastening member 300 to which the bolt 500 can be fastened is attached to one edge of the window panel 200.

The front case 101 includes a hole formed in an area through which the image transmitted from the display unit passes. The edge region of the front case 101 surrounding the hole is a portion to which the window panel 200 is bonded so that the window panel 200 is bonded between the other surface of the window panel 200 and the front case 101 So that a predetermined width is recessed inward to prevent a step from occurring.

At this time, a first hole 101a through which the fastening member 300 is inserted is formed at the edge of the front case 101 when the window panel 200 is joined. The first hole 101a of the front case 101 is formed at a position corresponding to the fastening member 300 of the window panel 200. [ The upper part of the front case 101 is joined to the rim of one side of the window panel 200 through the double-faced tape 400 and the fastening member (not shown) of the window panel 200 when the window panel 200 and the front case 101 are joined 300 are inserted into the first hole 101a.

The rear case 102 is engaged at the lower portion of the front case 101 and internal components are mounted between the front case 101 and the rear case 102. [ The rear case 102 is formed with a second hole 102a at a position corresponding to the first hole 101a of the front case 101. [ The fastening member 300 of the window panel 200 is inserted into the first hole 101a of the front case 101 and inserted into the lower portion of the rear case 102 through the second hole 102a of the rear case 102 To the outside. The bolts 500 are fastened to the fastening member 300 exposed through the second hole 102a at the lower portion of the rear case 102 to thereby secure the window panel 200, the front case 101 and the rear case 102 ).

In the conventional mobile terminal, the window panel 200 and the front case 101 are attached using double-sided tape or heat-seal tape. Thereafter, a process of joining the front case 101 with the window panel 200 to the rear case 102 using a separate fastening means has been performed. However, when the window panel 200 is bonded to the front case 101 by using the double-sided tape, the adhesive force is low and lifting of the window panel 200 occurs. Especially, the occurrence frequency is higher under high temperature and high humidity. In addition, since the curing process must be performed at the time of bonding with the thermally fusible tape, the manufacturing process becomes long.

The present invention is characterized in that the window panel 200, the front case 101 and the rear case 102 are assembled and then the bolts 500 are fastened to the fastening member 300 as described above, 101 and the rear case 102 are coupled to each other to increase the coupling force therebetween. Particularly, the window panel 200 and the front case 101 are primarily joined to each other using the double-sided tape 400, and the bolts 500 are fastened to the fastening member 300, So that the coupling force between the window panel 200 and the front case 101 is further improved. The joining force can be maintained even under high temperature and high humidity by joining the window panel 200, the front case 101 and the rear case 102 using physical means for tightening the bolts 500 to the fastening member 300.

5 is a plan view of the window panel 200 according to the present invention, and Figs. 6 to 7C are perspective views of the fastening member 300. Fig. Hereinafter, the window panel 200 and the fastening member 300 of the present invention will be described in detail with reference to FIGS. 5 to 7C.

The window panel 200 protects a touch sensor or a display unit mounted in the mobile terminal from the outside. The window panel 200 may be formed of synthetic resin such as transparent acrylic or tempered glass. And is preferably formed of a tempered glass having excellent heat stability and high durability.

The central part of the window panel 200 is transparent and an image transmitted from the display part can be seen by the user through the center part of the window panel 200. [ On the other hand, the rim surrounding the center of the window panel 200 is opaque to prevent the user from visually recognizing the joining area between the window panel 200 and the front case 101 and the bezel area of the touch sensor.

Here, one surface of the window panel 200 is a surface bonded to the front case 101. The edge of one side of the window panel 200 is bonded to the upper part of the front case 101 to be precise.

At this time, the fastening member 300 is attached to the edge of one side of the window panel 200. A plurality of fastening members 300 may be attached to the rim of the window panel 200.

And may include four fastening members 300 respectively attached to the edges E of the window panel 200, as shown in Fig. The plurality of fastening members 300 are attached to the edge E of the window panel 200 so that the fastening member 300 is not visually recognized from the outside and the fastening member 300 is uniformly formed on one side of the window panel 200. [ It is possible to connect the window panel 200 to the front case 101 more firmly by transmitting the fastening force.

A double-sided tape 400 is attached to the edge of the window panel 200 except for the portion to which the fastening member 300 is attached so that the window panel 200 is attached to the front case 101. The window panel 200 and the front case 101 are not only bonded to each other by using the double-sided tape 400 but also by assembling the rear case 102 to the front case 101, And then tightened together by the second fastening part 500 to be more firmly coupled.

6, the fastening member 300 includes a support portion 320 and a boss portion 340 formed to extend vertically from the support portion 320. As shown in FIG.

Here, the supporting portion 320 of the fastening member 300 refers to a portion directly bonded to the window panel 200. The supporting portion 320 of the fastening member 300 may be joined to the edge of the window panel 200 by a heat seal tape 600 (see FIG. 8). The thermally fusible tape 600 has an advantage of excellent adhesive strength. Since the narrow area of the support portion 320 is attached to the window panel 200, the time required for heating and curing the thermally fusible tape 600 is shortened.

At this time, a plurality of bonding holes 322 may be formed in the supporting part 320 as shown in FIG. The heating and curing process is performed when the supporting portion 320 of the fastening member 300 is bonded to the window panel 200 by using the heat-sealing tape 600. At this time, when the heat-sealing tape 600 is heated, 322 to be cured. The thermally fused tape 600 is inserted into the bonding hole 322 of the supporting portion 320 and the bonding area between the supporting portion 320 and the thermally fused tape 600 is increased so that the supporting portion 320 is fixed The adhesion force between the support portion 320 and the window panel 200 can be improved.

Preferably, as shown in FIG. 8, the joining hole 322 formed in the support 320 has a shape in which the inner diameter decreases in the direction of the joining surface with the window panel 200. When the thermally fusible tape 600 flows into the bonding hole 322 and hardens, the bonding hole 322 formed on the surface of the supporting portion 320 to be bonded to the window panel 200, Since the inner diameter Ra of the bonding hole 322 formed on the opposite side of the bonding hole 322 is large, the hardened thermally fusible tape 600 having the larger inner diameter of the bonding hole 322 acts as a catching jaw, (600).

On the other hand, the shape of the joint hole 322 may be circular, but not limited thereto, and includes various shapes such as a quadrangle (see FIG. 7B) and a triangle (see FIG.

The boss portion 340 of the fastening member 300 is formed to extend in a direction perpendicular to the surface of the support portion 320 and includes a fastening hole 342 to which the bolt 500 is fastened. The bolts 500 are fastened to the boss unit 340 after the window panel 200, the front case 101 and the rear case 102 are assembled to thereby connect the window panel 200, the front case 101 and the rear case 102 ).

That is, when the fastening member 300 is attached to the window panel 200, the boss 340 protrudes from the window panel 200, and when the window panel 200 and the front case 101 are joined, The portion 340 is inserted into the first hole 101a of the front case 101. [

9, the length L in a direction perpendicular to the supporting surface of the boss 340 is equal to the length L of the distal end of the boss 340 in the state of joining the front case 101 and the window panel 200 (L) sufficient to protrude from the rear of the front case (101) through the first hole (101a).

The fastening hole 342 of the boss 340 is exposed through the second hole 102a of the rear case 102 in a state where the rear case 102 is assembled to the front case 101. [ Since the second hole 102a of the rear case 102 is located corresponding to the first hole 101a of the front case 101, the boss 340 inserted into the first hole 101a is inserted into the second hole 102a ). &Lt; / RTI &gt; The window panel 200, the front case 101 and the rear case 102 are coupled by fastening the bolts 500 to the fastening holes 342 of the bosses 340 exposed through the second holes 102a.

Meanwhile, the fastening member 300 may be made of stainless steel (SUS). Stainless steel has advantages of strength and low chemical reactivity. Therefore, durability and corrosion stability of the fastening member 300 can be enhanced by using stainless steel.

FIGS. 10 to 13 are views sequentially showing a fastening method of a mobile terminal according to a preferred embodiment of the present invention. Hereinafter, a fastening method of a mobile terminal according to the present invention will be described with reference to the drawings. The parts overlapping with those described above will be omitted or briefly described.

First, as shown in FIG. 10, the fastening member 300 is joined to one surface of the window panel 200. More specifically, a plurality of fastening members 300 are attached to the edge of one side of the window panel 200. Preferably, the four joining members 300 are attached to the edges of the window panel 200, respectively. The fastening force of the fastening member 300 can be uniformly applied to the front surface of the window panel 200 as it is attached to the edge of the window panel 200.

The fastening member 300 includes a support 320 attached to the window panel 200 and a boss having a fastening hole 342 extending vertically from the support 320 to fasten the bolt 500 (340).

The fastening member 300 may be attached to one side of the window panel 200 using a heat-sealing tape 600 (see FIG. 8). A process of joining the fastening member 300 to the window panel 200 using the heat-seal tape 600 is as follows.

First, a thermally fused tape 600 is inserted between one side of the window panel 200 and the fastening member 300 to heat and press the fastening member 300 at a temperature in the range of 80 ° C. <T1 <90 ° C., ). The window panel 200 to which the fastening member 300 is attached is then heated and pressed at a temperature in the range of 100 ° C. <T2 <120 ° C., thereby fixing the fastening member 300 to the window panel 200. Finally, the window panel 200 to which the fastening member 300 is bonded is dried to cure the heat-sealable tape 600, thereby completing the joining of the window panel 200 and the fastening member 300.

As shown in FIG. 7A, a plurality of bonding holes 322 may be formed in the supporting portion 320 of the fastening member 300. The heated and melted thermally fused tape 600 flows into the bonding hole 322 by heating the glass panel 200 at a temperature of 100 ° C. <T2 <120 ° C. When the heat-seal tape 600 is cured, the heat-seal tape 600 is inserted into the joint hole 322 and the heat-seal tape 600 can fix the fastening member 300 , The bonding area between the bonding hole 322 and the heat-sealing tape 600 increases. Therefore, the adhesive force between the support portion 320 of the fastening member 300 and the window panel 200 can be improved due to the structure of the joint hole 322.

Preferably, the bonding hole 322 has a smaller inner diameter in the direction of the joining surface of the support 320 with the window panel 200, as shown in FIG. The joining hole 322 formed on the surface of the supporting portion 320 to be joined to the window panel 200 has a larger joining hole 322 formed on the opposite surface to the joining surface than the inner diameter Rb, The hardened thermally fusible tape 600 having a larger inner diameter of the thermally fusing tape 600 can be prevented from falling off the thermally fusing tape 600 by acting as a catching jaw.

Next, the window panel 200 and the front case 101 are joined as shown in FIG.

At this time, the window panel 200 is joined to the upper part of the front case 101 so that the fastening member 300 of the window panel 200 is inserted into the first hole 101a of the front case 101. More specifically, the window panel 200 is joined to the upper portion of the front case 101 so that the boss 340 of the coupling member 300 is inserted into the first hole 101a of the front case 101, So that the end of the boss 340 protrudes.

On the other hand, the window panel 200 and the front case 101 are bonded using the double-sided tape 400. Sided tape 400 in order to increase the coupling force of the window panel 200 to the front case 101. The bolts 500 are secondarily fastened to the fastening member 300 as described later do.

Next, the front case 101 and the rear case 102 are engaged as shown in FIG. The inner part P is mounted between the front case 101 and the rear case 102. For example, internal components P such as a circuit board having a touch sensor, a display module, or a control unit may be sequentially mounted under the front case 101.

At this time, the front case 101 and the rear case 102 are coupled so that the first hole 101a of the front case 101 and the second hole 102a of the rear case 102 correspond to each other. The boss 340 of the coupling member 300 protruding through the first hole 101a of the front case 101 is inserted into the rear case 102 through the second hole 102a of the rear case 102. [ As shown in FIG. The bolts 500 are screwed into the fastening holes 342 of the boss portion 340 through the second holes 102a at the lower portion of the rear case 102 after the front case 101 and the rear case 102 are assembled. Respectively.

13 is a perspective view of a mobile terminal as viewed from the back side of the mobile terminal after the front case 101 and the rear case 102 are coupled to each other to complete the assembly of the mobile terminal.

The front panel 101 and the rear panel 102 are assembled and then the bolts 500 are fastened to the fastening member 300 so that the window panel 200, the front case 101, The coupling strength of the case 102 can be increased and the durability of the mobile terminal can be improved. The window panel 200 is primarily fastened to the front case 101 using a double-faced tape 400 or the like and is fastened to the fastening member 300 by a bolt 500, So that the coupling force between the window panel 200 and the front case 101 is further improved. As a result, lifting of the window panel 200 is prevented, and the combination of the window panel 200 and the front case 101 can be maintained even under high temperature and high humidity.

The foregoing description of the preferred embodiments of the present invention has been presented for purposes of illustration and various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention, And additions should be considered as falling within the scope of the following claims.

101: Front case 101a: First hole
102: rear case 102a: second hole
200: window panel 300: fastening member
320: Support part 322: Joint hole
340: boss portion 342: fastening hole
400: Double-sided tape 500: Bolt
600: Thermal Fusion Tape

Claims (13)

Window panel;
A front case having one side of the window panel bonded to the upper side and having a first hole for fastening with the window panel;
A rear case coupled to the front case at a lower portion of the front case and having a second hole at a position corresponding to the first hole; And
A fastening member attached to one surface of the window panel corresponding to the first hole to be inserted into the first hole and fastened to the bolt through the second hole to join the window panel, the front case, and the rear case;
Lt; / RTI &gt;
The fastening member
A support portion attached to the window panel by a heat-seal tape; And
And a boss portion extending vertically to the support portion and having a fastening hole for fastening the bolt,
The support
And a joint hole into which the heat-sealable tape is introduced, the inner diameter of which is reduced toward the joint surface with the window panel. delete The method according to claim 1,
The support
And a plurality of said joint holes. delete delete The method according to claim 1,
When the fastening member and the window panel are heated and bonded to each other with a thermally fusible tape, the thermally fusible tape having lowered viscosity by heating flows into a bonding hole formed in the supporting portion and is cured so that the fastening member and the window panel are bonded . The method according to claim 1,
And four fastening members respectively attached to the edges of one side of the window panel. The method according to claim 1,
Wherein the window panel is joined to an upper portion of the front case by a double-sided tape. The method according to claim 1,
Wherein the fastening member is made of stainless steel (SUS). Bonding the fastening member to one surface of the window panel;
Joining an upper surface of the front case and one surface of the window panel so that the fastening member is inserted into a first hole formed in the front case;
Assembling an internal part under the front case; And
Positioning the rear case so that the second hole formed in the rear case corresponds to the first hole and fastening the bolt to the fastening member through the second hole to join the rear case at the bottom of the front case;
Lt; / RTI &gt;
The fastening member
And a joining hole having a smaller inner diameter in the direction of the joining surface with the window panel, the support part being attached to the window panel; And
And a boss portion extending vertically to the support portion and having a fastening hole for fastening the bolt,
The step of joining the fastening member to one side of the window panel
Inserting a thermally fused tape between one side of the window panel and the fastening member and heating and pressing the fastening tape in a first temperature range to bring the fastening member into contact with the window panel;
Heating and pressing the window panel having the fastening member bonded thereto in a second temperature range to allow the melted thermally fused tape to flow into the bonding hole to be in contact with the window panel;
And drying the window panel connected to the fastening member. delete delete delete

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