BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.
The terms spatially relative, "below", "beneath", "lower", "above", "upper" Can be used to easily describe the correlation of components with other components. Spatially relative terms should be understood as terms that include different orientations of components during use or operation in addition to those shown in the drawings. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element . Thus, the exemplary term "below" can include both downward and upward directions. The components can also be oriented in different directions, so that spatially relative terms can be interpreted according to orientation.
The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. &Quot; comprises "and / or" comprising ", as used herein, unless the recited component, step, and / or step does not exclude the presence or addition of one or more other elements, steps and / I never do that.
Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.
In the drawings, the thickness and the size of each component are exaggerated, omitted, or schematically shown for convenience and clarity of explanation. Also, the size and area of each component do not entirely reflect actual size or area.
Further, the angles and directions mentioned in the description of the structure of the embodiment are based on those shown in the drawings. In the description of the structures constituting the embodiments in the specification, reference points and positional relationships with respect to angles are not explicitly referred to, reference is made to the relevant drawings.
Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.
The mobile terminal described in this specification includes a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and navigation.
1 is a block diagram of a mobile terminal according to an embodiment of the present invention. Referring to FIG. 1, a mobile terminal according to an exemplary embodiment of the present invention will be described in terms of functional components.
1, the mobile terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, A memory 160, an interface unit 170, a control unit 180, and a power supply unit 190. When such components are implemented in practical applications, two or more components may be combined into one component, or one component may be divided into two or more components as necessary.
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 113, a wireless Internet module 115, a short range communication module 117, and a GPS module 119 .
The broadcast receiving module 111 receives at least one of a broadcast signal and broadcast related information from an external broadcast management server through a broadcast channel. At this time, the broadcast channel may include a satellite channel, a terrestrial channel, and the like. The broadcast management server may refer to a server for generating and transmitting at least one of a broadcast signal and broadcast related information and a server for receiving at least one of the generated broadcast signal and broadcast related information and transmitting the broadcast signal to the terminal.
The broadcast-related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. 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 can also be provided through a mobile communication network, in which case it can be received by the mobile communication module 113. Broadcast-related information can 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).
The broadcast receiving module 111 receives broadcast signals using various broadcasting systems. In particular, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S) ), Digital Video Broadcast-Handheld (DVB-H), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. In addition, the broadcast receiving module 111 may be configured to be suitable for all broadcasting systems that provide broadcast signals, as well as the digital broadcasting system. 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 113 transmits and receives a radio signal to at least one of a base station, an external terminal, and a server on a mobile communication network. Here, the wireless signal may include various types of data according to a voice call signal, a video call signal, or a text / multimedia message transmission / reception.
The wireless Internet module 115 is a module for wireless Internet access, and the wireless Internet module 115 can 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 117 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 the short distance communication technology.
The GPS (Global Position System) module 119 is a module for acquiring the position of the mobile terminal, and receives position information from a plurality of GPS satellites.
The 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 123. 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. Then, 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. [ The camera 121 may be equipped with two or more cameras according to the configuration of the terminal.
The microphone 123 receives an external sound signal by 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 113 and output when the voice data is in the call mode. The microphone 123 may be a variety of noise reduction algorithms for eliminating noise generated in receiving an external sound signal.
The user input unit 130 generates key input data that the user inputs to control the operation of the terminal. The user input unit 130 may include a key pad, a dome switch, a touch pad (static / static), a jog wheel, a jog switch, a slide switch, and a finger mouse. Particularly, when the touch pad has a mutual layer structure with the display unit 151 described later, it can be called a touch screen.
The user input unit 130 may be configured to implement various functions with a single key. A detailed description thereof will be given later with reference to Figs. 3 to 8.
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, Thereby generating a sensing signal. For example, when the mobile terminal 100 is of the slide type, it is possible to sense whether the mobile terminal 100 is opened or closed. In addition, a sensing function related to whether or not the power supply unit 190 is powered on, whether the interface unit 170 is coupled to an external device, and the like can be handled.
The sensing unit 140 may include a proximity sensor 141. The proximity sensor 141 is capable of detecting an object to be approached or the presence or absence of an object in the vicinity without mechanical contact. The proximity sensor 141 can detect a nearby object by using the change of the alternating magnetic field or the change of the electromagnetic field, or by using the change rate of the capacitance. Examples of the proximity sensor 141 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. The proximity sensor 141 may be equipped with two or more sensors according to the configuration.
The sensing unit 140 may include a gyro sensor 142. The gyro sensor 142 is a concept including a sensor for sensing the movement of an object, an inertial sensor, and an acceleration sensor using a gyroscope. Gyroscopes include mechanical gyroscopes, ring laser gyroscopes, and fiber optic gyroscopes. The gyro sensor 142 senses the movement of the mobile terminal and provides a signal for controlling the mobile terminal.
The sensing unit 140 may include a gravity sensor 143. The gravity sensor 143 is a concept including all kinds of sensors for sensing the rotation state of the mobile terminal. The gravity sensor 143 connects the weight to the variable resistor and detects the current state of the terminal by the change of the resistance due to the rotation or places a conductive object at the center and corresponds to the direction in which the conductive object comes in contact with the rotation The rotation state can be detected.
The output unit 150 is for outputting an audio signal, a video signal or an alarm signal and includes a display unit 151 and an audio output module 153, an alarm unit 155, a vibration module 157 May be included.
The display unit 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal 100 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 or received images can be displayed individually or simultaneously, and the UI and the GUI are displayed.
Meanwhile, as described above, when the display unit 151 and the touch pad have a mutual layer structure to constitute a touch screen, the display unit 151 can be used as an input device in addition to the output device. If the display unit 151 is configured as a touch screen, it may include a touch screen panel, a touch screen panel controller, and the like. In this case, the touch screen panel is a transparent panel that is attached to the outside, and can be connected to the internal bus of the mobile terminal 100.
The touch screen panel may be configured to convert a change in a pressure applied to a specific portion of the display portion 151 or a capacitance generated in a specific portion of the display portion 151 into an electrical input signal. The touch screen panel can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.
The touch screen panel keeps a watch on the contact result, and if there is a touch input, sends the corresponding signals to the touch screen panel controller. The touch screen panel controller processes the signals, and then transmits corresponding data to the controller 180 so that the controller 180 can determine whether the touch input has been made and which area of the touch screen has been touched.
The display unit 151 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, And a display (3D display).
Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display 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, the mobile terminal 100 may include an external display unit (not shown) and an internal display unit (not shown) at the same time.
The audio output module 153 outputs 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, In addition, the sound output module 153 outputs sound signals related to functions performed in the mobile terminal 100, for example, call signal reception tones, message reception tones, and the like. The sound output module 153 may include a receiver, a speaker, a buzzer, and the like.
The alarm unit 155 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal 100 include call signal reception, message reception, and key signal input. The alarm unit 155 outputs a signal for notifying the occurrence of an event in a form other than an audio signal or a video signal. For example, it is possible to output a signal in a vibration mode. The alarm unit 155 may output a signal for notifying a call signal when a call signal is received or a message is received. Also, when the key signal is inputted, the alarm unit 155 can output the signal as the feedback to the key signal input. The user can recognize the occurrence of an event through the signal output by the alarm unit 155. Of course, a signal for notifying the occurrence of an event may also be output through the display unit 151 or the sound output module 153. [
The haptic module 157 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 157 is a vibration effect. When the haptic module 157 generates vibration with a haptic effect, the intensity and pattern of the vibration generated by the haptic module 157 can be converted, and the different vibrations can be synthesized and output or sequentially output.
In addition to the vibration, the haptic module 157 may be provided with a function of stimulating by a pin arrangement vertically moving with respect to the contact skin surface, an effect of stimulating air through the injection or suction force of the air through the injection port or the suction port, The effect of stimulation through contact of an electrode, the effect of stimulation by electrostatic force, and the effect of reproducing a cold sensation using a device capable of endothermic or exothermic can be generated. The haptic module 157 can be implemented not only to transmit the tactile effect through direct contact but also to feel the tactile effect through the muscular sense of the user's finger or arm. The haptic module 157 may include two or more haptic modules 157 according to the configuration of the mobile terminal 100.
The memory 160 may store a program for processing and controlling the control unit 180 and may store a function for temporarily storing input or output data (e.g., a phone book, a message, a still image, .
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. In addition, the mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 150 on the Internet.
The interface unit 170 serves as an interface with all external devices connected to the mobile terminal 100. Examples of the external device connected to the mobile terminal 100 include a card socket such as a wired / wireless headset, an external charger, a wired / wireless data port, a memory card, a SIM / UIM card, / Output, Video I / O, and Earphone. The interface unit 170 may receive data from the external device or supply power to the respective components in the mobile terminal 100 and may transmit data in the mobile terminal 100 to the external device .
The interface unit 170 may be a path through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, May be a pathway 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 operation of the respective units to control the overall operation of the mobile terminal 100. For example, voice communication, data communication, video communication, and the like. In addition, the control unit 180 may include a multimedia playback module 181 for multimedia playback. The multimedia playback module 181 may be configured in hardware in the controller 180 or separately from software in the controller 180. [ The control unit 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 mobile terminal according to the present invention has been described in terms of the functional components. Hereinafter, with reference to FIG. 2 and 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 external form. Hereinafter, for convenience of description, a bar-type mobile terminal having a front touch screen among various types of mobile terminals such as a folder type, a bar type, a swing type, a slider type, etc. will be described as an example. However, the present invention is not limited to the bar-type mobile terminal but can be applied to all types of mobile terminals including the above-mentioned types.
FIG. 2 is a perspective view of a mobile terminal according to an exemplary embodiment of the present invention, and FIG. 3 is a perspective view illustrating a mobile terminal according to an exemplary embodiment of the present invention.
The case constituting the external appearance of the mobile terminal 100 is formed by the front case 100a and the rear case 100b. Various electronic components are embedded in the space formed by the front case 100a and the rear case 100b. At least one intermediate case may be additionally disposed between the front case 100a and the rear case 100b. Such cases may be formed by injection molding of a synthetic resin, or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).
2, the display unit 151, the first sound output module 153a, the first camera 121a, and the first through third user input units 130a through 130c may be disposed in the front case 100a. have. The first interface unit 170a, the fourth through sixth user input units 130d through 130f, and the microphone 123 may be disposed on the side of the rear case 100b.
The display unit 151 includes a liquid crystal display (LCD), an OLED (Organic Light Emitting Diodes), and the like that visually express information. The display unit 151 may be configured to operate as a touch screen by inputting information by a user's touch by superimposing the touch pad on the display unit 151 in a layer structure.
The first acoustic output module 153a may be implemented in the form of a receiver or a speaker. The first camera 121a may be adapted to photograph an image or a moving image of a user or the like. The microphone 123 may be implemented in a form suitable for receiving voice, sound, etc. of the user.
The first to sixth user input units 130a to 130f may be collectively referred to as a user input unit 130 and may be employed in any manner as long as the user operates in a tactile manner with a tactile impression.
For example, the user input unit 130 may be embodied as a dome switch or a touch pad capable of receiving a command or information by a push or touch operation of a user, or may be a wheel, a jog type, a joystick, Or a sliding switch that slides the key. The first to third user input units 130a to 130c are for inputting commands such as start, end, and call, and the third to sixth user input units 130d to 130f are for selecting the operation mode Or as a hot-key for activating a special function.
The first interface unit 170a is a path for allowing the mobile terminal 100 to exchange data with an external device. For example, the first interface unit 170a may include at least one of a connection terminal for connecting to an earphone, a port for short-range communication, or power supply terminals for supplying power to the mobile terminal 100, Lt; / RTI > The first interface unit 170a may be a card socket that accepts an external card such as a SIM (subscriber identification module) or a UIM (user identity module), a memory card for information storage, and the like.
3, a fifth user input unit 130g may be disposed on a side surface of the rear case 100b and a second camera 121b and a power supply unit cover 191 may be mounted on a rear surface of the rear case 100b. .
The second camera 121b has a photographing direction substantially opposite to that of the first camera 121a, and may have pixels different from those of the first camera 121a. For example, the first camera 121a 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 second camera 121b photographs a general object and immediately transmits It is preferable to have a high pixel.
The power supply cover 190 is detachably coupled to the rear case 100b. In the power supply cover 191, a power supply unit 190, for example, a rechargeable battery is provided.
A second sound output module (not shown) may be further disposed in the rear case 100b. The second sound output module may implement the stereo function together with the first sound output module 153a, and may be used for talking in the speakerphone mode.
An antenna (not shown) for receiving broadcast signals may be disposed on one side of the second rear case 100b in addition to the antenna for communication. The antenna may be installed to be detachable from the rear case 100b.
FIG. 4 is a cross-sectional view of a key module according to an embodiment of the present invention, and FIG. 5 is an exploded perspective view of the key module shown in FIG.
4 and 5, the user input unit 135g may be composed of a switch 281 located in the case A and a key module generating the key input data by pressing the switch 281.
The user input unit 135g receives commands or information by user's operation. That is, the user input unit 135g generates key input data that the user inputs to control the operation of the terminal.
In a functional aspect, the user input 135g may operate as a hot-key for entering commands such as start, end, call, etc., inputting a selection of an operation mode, or activating a special function .
The user input unit 135g is disposed in the case and generates key input data corresponding to the touch input signal.
In particular, the user input unit 135g may be implemented as a side key located on the side (side) of the case as shown in FIG. However, the present invention is not limited thereto, and the user input unit 135g may be located at various positions. Hereinafter, description will be made on the basis that the user input portion 135g is disposed on the side surface of the case.
For example, the case may be composed of the front case 100a and the rear case 100b, and the side surface of the case may be integrally formed with the front case 100a or the rear case 100b. In FIG. 3, the side surface of the case is integrally formed with the rear case 100b, and the user input portion 135g is shown on the side surface integrally formed with the rear case 100b.
As another example, the case may be constituted by the front case 100a and the intermediate case and the rear case 100b forming the side surface, and the user input portion 135g may be disposed in the intermediate case.
Also, the case may have a keyhole 311 or 312, which is a space in which the key module is inserted at a position corresponding to the switch 281. [
For example, for waterproofing, the rear case 100b may be formed in a double structure having an outer wall 100b-1 and an inner wall 100b-2. The first keyhole 311 in which the key module is inserted is formed in the outer wall 100b-1 and the second keyhole 312 in which the key module is inserted is formed in the inner wall 100b-2.
The inner wall 100b-2 of the rear case 100b may be sealed by a separate sealing 320 from the front case 100a to obtain a solid waterproof structure.
The switch 281 is located inside the case A and is electrically connected to the substrate 280.
For example, the switch 281 and the substrate 280 generate key input data when the key module is pushed. A protrusion (not shown) is formed on the dome-shaped end of the switch 281 such that when the key module is pushed, the dome is deformed to contact the protrusion 280 with the substrate 280, and the substrate 280 generates an electrical signal corresponding to the command data . The generated electrical signal can be recognized as specific key input data by the board 280 or the control unit 180. However, the switch 281 is not limited to the doom switch 281, and any means for recognizing touch and pressure and generating constant data may be used.
It is preferable that the switch 281 is formed of a metal material so as to have a returning elastic force when pushed.
The substrate 280 may be embodied as a printed circuit board (PCB), for example, and may be implemented as a flexible printed circuit board (FPCB) so as to be connected to a main circuit board (not shown) . In addition, the substrate 280 may be connected to a main substrate (not shown) of the mobile terminal 100.
A base plate 340 for supporting the substrate 280 may be further included on one surface of the substrate 280. The base plate 340 supports the substrate 280 so that it is not bent or moved when the key module is pushed. The base plate 340 may be coupled to the rear case 100b of the mobile terminal 100 or the intermediate case.
The base plate 340 may be integrally formed with the rear case 100b or the intermediate case of the mobile terminal 100 or may be replaced with the rear case 100b or the intermediate case of the mobile terminal 100. [
For example, when the key module moving in the lateral direction as shown in Fig. 4 presses the switch 281, the base plate 340 can be disposed perpendicular to the moving direction of the key module, in order to support the key module. That is, it can be disposed perpendicular to the rear case 100b.
Here, the key module is pivotally mounted on the keyhole and presses the switch 281 to generate key input data. That is, the key module functions to transmit the external pressure applied by the user to the switch 281.
For example, the key module may include a button portion 210 which is inserted and exposed in a first keyhole 311 formed in the outer wall 100b-1, a button portion 210 which is moved corresponding to the movement of the button portion 210, A pressing operation part 250 inserted into the second keyhole 312 formed in the inner wall 100b-2 and a pressing operation part 250 located between the button part 210 and the pressing operation part 250, 2 and a pressing operation body (not shown) which is located between the pushing operation body 230 and the inner wall 100b-2 and has a through hole through which the pushing operation body 230 and the pushing operation part 250 penetrate, 230) for sealing the sealing member (240).
The button portion 210 is inserted into the first keyhole 311 formed on the outer wall 100b-1 and exposed to the outside of the mobile terminal 100. [ The button unit 210 provides a place for a user to apply an external pressure, and symbols or characters can be printed on the outer surface.
4 shows that the outer wall 100b-1 is formed by coupling the rear case 100b and the front case 100a. However, the present invention is not limited to this, and the rear case 100b or the front case 100a .
Specifically, the button portion 210 is formed in a rectangular shape and inserted into the first keyhole 311 so as not to be released to the outside, and is moved by the external force of the user.
The first keyhole 311 formed on the outer wall 100b-1 is formed so as to be engaged with the button portion 210. The first keyhole 311 formed on the outer wall 100b- The width of the outer side of the case can be reduced.
The pressing operation portion 250 presses the switch 281 in response to the movement of the button portion 210 and is inserted into the second keyhole 312 formed in the inner wall 100b-2. The pushing operation part 250 is formed in a columnar shape to transmit an external pressure applied by the user to the switch 281. [
For example, the pressing operation part 250 is disposed through the second keyhole 312 formed on the inner wall 100b-2. That is, one end of the pushing operation part 250 is adjacent to the switch 281, and the other end of the pushing operation part 250 is disposed adjacent to the button part 210 so as to transmit the movement of the button part 210.
A plurality of the pushing operation parts 250 may be disposed and a second keyhole 312 may be formed corresponding to the number of the pushing operation parts 250. At this time, the button portion 210 and the first keyhole 311 may be connected to each other to form an integral body.
The pushing operation body 230 is positioned between the button portion 210 and the pushing operation portion 250 to shield the second keyhole 312 and the pushing operation portion 250 is engaged. That is, the pushing operation body 230 is coupled to one end of the pushing operation part 250 to shield the second keyhole 312 formed on the inner wall 100b-2.
For example, the pushing operation body 230 may be a rectangular plate having an area larger than that occupied by the second keyhole 312 so as to shield at least one second keyhole 312.
Specifically, the pressing operation body 230 may be implemented as a printed circuit board (PCB) or a flexible printed circuit board (FPCB). One end of the pushing operation part 250 may be inserted into the hole 231 formed in the pushing operation body 230 and soldered. That is, the pushing operation part 250 can be coupled to the pushing operation body 230 by surface mount technology (SMT).
The adhesive sealing member 240 has a through hole 241 through which the pushing operation part 250 passes and is positioned between the pushing operation body 230 and the inner wall 100b-2. The adhesive sealing member 240 bonds the inner wall 100b-2 and the pressing operation body 230 to prevent external water from being infiltrated into the case A through the second keyhole 312. [
Specifically, the adhesive sealing member 240 has a rectangular plate shape, and a through hole 241 is formed therein. The through hole 241 is located at a position corresponding to the second keyhole 312 or the pushing operation part 250 and has a loop shape surrounding the second keyhole 312 or the pushing operation part 250.
For example, the adhesive sealing member 240 can be various materials having an adhesive force, and can include an adhesive tape or a bonding material.
Accordingly, the column-shaped pushing operation part 250 can be easily coupled to the printed circuit board commonly used for the electronic part by applying the surface mounting technique, and the structure can be moved to a simple structure that is bonded to the inner wall 100b-2 of the case It is possible to prevent water from invading the inside of the terminal 100.
The embodiment may further include a sealing member 260 disposed opposite to the pushing operation body 230 with respect to the inner wall 100b-2 and formed to surround the pushing operation part 250. The sealing member 260 is configured to water the water intruding from the outside through the second keyhole 312.
For example, the closure member 260 may comprise a soft material (e.g., rubber, silicone rubber, etc.) having good hermeticity.
Specifically, the sealing member 260 has a through-hole 261 through which the pressing operation portion 250 passes in a rectangular plate shape. The through hole 261 is located at a position corresponding to the second keyhole 312 or the pushing operation part 250 and has a loop shape surrounding the second keyhole 312 or the pushing operation part 250.
Further, the sealing member 260 can be brought into close contact with the inner wall 100b-2 by the contact member 270.
The contact member 270 is engaged with the inner portion A of the case to closely contact the sealing member 260 in the direction of the inner wall 100b-2.
For example, the contact member 270 may have a shape in which one end is coupled to the rear case 100b and the other end is bent in the vertical direction in the rear case 100b.
The sealing member 260 is inserted into the space between the inner wall 100b-2 and the inside of the close contact portion fixed to the rear case 100b.
The embodiment has the effect of double waterproofing even if leakage occurs between the pressing operation body 230 and the inner wall 100b-2 by the sealing member 260 disposed in the case inner side A of the inner wall 100b-2 I have.
The embodiment may further include an adhesive member 220 positioned between the pressing operation body 230 and the button portion 210 to adhere the button portion 210 to the pressing operation body 230.
The adhesive member 220 functions to prevent water from invading through the hole 231 of the pushing operation body 230 to which the pushing operation part 250 is coupled.
Specifically, the adhesive member 220 has a rectangular plate shape, and may have at least an area for shielding the hole 231 of the pressing operation body 230 to which the pressing operation part 250 is coupled.
For example, the adhesive member 220 may be various materials having adhesive strength, and may include an adhesive tape or a bonding material.
FIG. 6 is an operational state view showing a pressed state of the key module in FIG.
6, when the user applies an external force to the button unit 210, the button unit 210 is moved in the direction of the inside of the case A, and the pushing operation body 230 and the pushing operation part 250 are moved in the direction of the inside (A) of the case.
The pressing operation portion 250 presses the switch 281 located inside the case A and when the switch 281 is pressed the switch 281 transmits the key input data to the control portion 180 .
The control unit 180 controls the mobile terminal 100 by outputting a command corresponding to the inputted key input data.
When the user removes the external force from the button unit 210, the button unit 210, the pushing operation unit 250, and the pushing operation body 230 return to their initial positions as shown in FIG.
FIG. 7 is a cross-sectional view of a key module according to another embodiment of the present invention, and FIG. 8 is an exploded perspective view of the key module shown in FIG.
Referring to Fig. 7, the embodiment of Fig. 7 further includes a sealing ring as compared with the embodiment of Fig. 4, and there is a difference that the adhesive member 220 and the sealing member 260 are omitted. Hereinafter, the differences between the embodiment of FIG. 4 will be mainly described.
The sealing ring surrounds the pressing operation part 250 and is positioned between the inner wall 100b-2 and the pressing operation body 230 to seal the space between the second keyhole 312 and the pressing operation body 230.
Specifically, the sealing ring is formed in a ring shape so as to surround the pressing operation part 250, a part of the area is in close contact with the inner wall 100b-2, and the other part of the area is in contact with the pressing operation body 230 do. Such a sealing ring may include a soft material (e.g., rubber, silicone rubber, etc.) that is elastically deformable against the movement of the button portion 210 and has excellent hermeticity.
The inner wall 100b-2 may be formed of a material having a high thermal conductivity, for example, an inner wall 100b-2, A portion of the second keyhole 312 formed in the first keyhole 312 may be expanded to provide a space 313 in which the sealing ring is located.
7, the adhesive member 220 and the sealing member 260 are omitted. However, the present invention is not limited thereto, and the adhesive member 220 and the sealing member 260 may be included.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.
