KR20170031518A - Mobile terminal - Google Patents

Abstract

The present invention relates to a mobile terminal. A mobile terminal according to one aspect includes a display unit for outputting an image; A front case having a front surface on which a display surface is seated; A rear case disposed at the rear of the front case and forming an inner space by engaging with the front case; A substrate portion provided in the inner space and on which various electronic components are mounted; And an antenna which is electrically connected to the base portion and transmits and receives a signal from the outside by forming a loop through which currents are circulated, wherein the antenna comprises: a metal material coupled to a lower surface of the front case and the rear case; A lower case; A flexible board disposed between the front case and the display unit; And a connection pin for interconnecting the substrate portion, the lower case, and the flexible substrate.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal.

A terminal can be divided into a mobile terminal (mobile / portable terminal) and a stationary terminal according to whether the terminal can be moved. The mobile terminal can be divided into a handheld terminal and a vehicle mounted terminal according to whether the user can directly carry the mobile terminal.

The functions of mobile terminals are diversified. For example, there are data and voice communication, photographing and video shooting through a camera, voice recording, music file playback through a speaker system, and outputting an image or video on a display unit. Some terminals are equipped with an electronic game play function or a multimedia player function. In particular, modern mobile terminals can receive multicast signals that provide visual content such as broadcast and video or television programs.

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 increase the functionality of such a terminal, it may be considered to improve the structural part of the terminal.

In order to implement an additional wireless communication method of the mobile terminal, the wireless communication terminal has a new type of antenna having an additional frequency band. One example of the antenna is a loop antenna, and the loop antenna is used for NFC (Near Field Communication) using a frequency band of 13.56 MHz.

In the conventional loop antenna, a form in which an antenna pattern is formed of copper copper foil formed on a flexible film is generally used. However, there is a problem that copper copper is relatively more expensive than other metal thin films.

In addition, the antenna unit of the conventional loop antenna and the connection unit connecting the antenna unit and the wireless communication terminal are integrally formed. The connection part of the loop antenna is generally protruded from one side of the antenna part. However, when the conventional loop antenna is manufactured in the above-described manner, there is a problem that there is a limitation in configuring an array having a plurality of loop antennas from one disc flexible film.

In addition, the shape and size of the antenna unit or the connection unit may vary depending on the characteristics of the wireless communication terminal to which the loop antenna is mounted. However, in the case where the conventional antenna unit and the connection unit are integrally formed, the entire loop antenna must be designed or manufactured again, resulting in a problem of inefficiency.

Therefore, there is a need for a loop antenna of the type capable of solving the above-mentioned problems.

The present invention has been proposed in order to solve the above-mentioned problems, and it is an object of the present invention to provide a mobile terminal capable of increasing the transmission / reception ratio of an antenna.

According to an aspect of the present invention, there is provided a display apparatus comprising: a display unit to output an image; A front case having a front surface on which a display surface is seated; A rear case disposed at the rear of the front case and forming an inner space by engaging with the front case; A substrate portion provided in the inner space and on which various electronic components are mounted; And an antenna which is electrically connected to the base portion and transmits and receives a signal from the outside by forming a loop through which currents are circulated, wherein the antenna comprises: a metal material coupled to a lower surface of the front case and the rear case; A lower case; A flexible board disposed between the front case and the display unit; And a connection pin connecting the substrate portion, the lower case, and the flexible substrate to each other

The mobile terminal according to the present invention has an advantage that the signal transmission and reception ratio is improved by increasing the loop forming length between the respective components for signal reception.

1 is a block diagram illustrating a mobile terminal according to the present invention;
2 is a front view of a terminal according to an embodiment of the present invention.
3 is a rear view of a terminal according to an embodiment of the present invention.
4 is an exploded perspective view of a mobile terminal according to an embodiment of the present invention;
5 is a perspective view illustrating an antenna structure of a mobile terminal according to an embodiment of the present invention.
Figure 6 is a perspective view of the antenna structure of Figure 5 with the display portion coupled.
7 is a perspective view showing a front surface of a front case according to an embodiment of the present invention.
8 is a perspective view showing a connection pin according to an embodiment of the present invention.
9 is a perspective view showing a rear surface of a front case according to an embodiment of the present invention.
10 is a perspective view showing a lower region of a mobile terminal according to a second embodiment of the present invention;
11 and 12 are perspective views showing a state in which the lower case is separated.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

The mobile terminal described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, a slate PC A tablet PC, an ultrabook, a wearable device such as a smartwatch, a smart glass, and a head mounted display (HMD). have.

However, it will be appreciated by those skilled in the art that the configuration according to the embodiments described herein may be applied to fixed terminals such as a digital TV, a desktop computer, a digital signage, and the like, will be.

FIG. 1 is a block diagram for explaining a mobile terminal according to the present invention, and FIGS. 2 and 3 are conceptual diagrams showing an example of a mobile terminal according to the present invention in different directions.

1 to 3, a mobile terminal 100 according to an embodiment of the present invention includes a wireless communication unit 110, an input unit 120, a sensing unit 140, an output unit 150, an interface unit 160, A memory 170, a control unit 180, a power supply unit 190, and the like. The components shown in FIG. 2 are not essential for implementing a mobile terminal, so that the mobile terminal described herein may have more or fewer components than the components listed above.

More specifically, the wireless communication unit 110 among the above-mentioned components may communicate with the mobile terminal 100 and the wireless communication system, between the mobile terminal 100 and another mobile terminal, And one or more modules that enable wireless communication between the servers. In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short distance communication module 114, and a location information module 115 .

The input unit 120 includes a camera 121 or an image input unit for inputting a video signal, a microphone 122 for inputting an audio signal, an audio input unit, a user input unit 123 for receiving information from a user, For example, a touch key, a mechanical key, etc.). The voice data or image data collected by the input unit 120 may be analyzed and processed by a user's control command.

The sensing unit 140 may include one or more sensors for sensing at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information. For example, the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, a touch sensor, an acceleration sensor, a magnetic sensor, A G-sensor, a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor, a finger scan sensor, an ultrasonic sensor A microphone 226, a battery gauge, an environmental sensor (e.g., a barometer, a hygrometer, a thermometer, a radiation sensor (not shown)), an optical sensor , A thermal sensor, a gas sensor, etc.), a chemical sensor (e.g., an electronic nose, a healthcare sensor, a biometric sensor, etc.). Meanwhile, the mobile terminal disclosed in the present specification can combine and utilize information sensed by at least two of the sensors.

The output unit 150 generates at least one of the display unit 151, the sound output unit 152, the haptrip module 153, and the light output unit 154 to generate an output related to the visual, auditory, . The display unit 151 may have a mutual layer structure with the touch sensor or may be integrally formed to realize a touch screen. The touch screen may function as a user input unit 123 for providing an input interface between the mobile terminal 100 and a user and may provide an output interface between the mobile terminal 100 and a user.

The interface unit 160 serves as a path to various kinds of external devices connected to the mobile terminal 100. The interface unit 160 is connected to a device having a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, And may include at least one of a port, an audio I / O port, a video I / O port, and an earphone port. In the mobile terminal 100, corresponding to the connection of the external device to the interface unit 160, it is possible to perform appropriate control related to the connected external device.

In addition, the memory 170 stores data supporting various functions of the mobile terminal 100. The memory 170 may store a plurality of application programs or applications that are driven by the mobile terminal 100, data for operation of the mobile terminal 100, and commands. At least some of these applications may be downloaded from an external server via wireless communication. At least a part of these application programs may exist on the mobile terminal 100 from the time of departure for the basic functions (e.g., telephone call receiving, calling function, message receiving, and calling function) of the mobile terminal 100 have. Meanwhile, the application program may be stored in the memory 170, installed on the mobile terminal 100, and operated by the controller 180 to perform the operation (or function) of the mobile terminal.

In addition to the operations related to the application program, the controller 180 typically controls the overall operation of the mobile terminal 100. The control unit 180 processes signals, data, and information input or output through the above-mentioned components, or drives an application program stored in the memory 170 to provide or process appropriate information or functions to the user have.

In addition, the controller 180 may control at least some of the components illustrated in FIG. 1 in order to drive an application program stored in the memory 170. FIG. In addition, the controller 180 may operate at least two of the components included in the mobile terminal 100 in combination with each other for driving the application program.

Under the control of the controller 180, the power supply unit 190 receives external power and internal power and supplies power to the components included in the mobile terminal 100. The power supply unit 190 may include a battery, and the battery may be an internal battery or a replaceable battery.

At least some of the components may operate in cooperation with one another to implement a method of operation, control, or control of a mobile terminal according to various embodiments described below. In addition, the operation, control, or control method of the mobile terminal may be implemented on the mobile terminal by driving at least one application program stored in the memory 170. [

Referring to FIGS. 2 and 3, the disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto and can be applied to various structures such as a folder type, a flip type, a slide type, a swing type, and a swivel type in which a watch type, a clip type, a glass type or two or more bodies are relatively movably coupled . A description of a particular type of mobile terminal, although relevant to a particular type of mobile terminal, is generally applicable to other types of mobile terminals.

Here, the terminal body can be understood as a concept of referring to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (for example, a frame, a housing, a cover, etc.) which forms an appearance. As shown in the figure, the mobile terminal 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in an inner space formed by the combination of the front case 101 and the rear case 102. At least one middle case may be additionally disposed between the front case 101 and the rear case 102. Hereinafter, for convenience of description, an assembly formed by the combination of the front case 101 and the rear case 102 is defined as a terminal main body. Hereinafter, the configuration of the mobile terminal 100 excluding the rear case 103 will be described with reference to the terminal main body 100a.

A display unit 151 is disposed on a front surface of the terminal body to output information. The window 151a of the display unit 151 may be mounted on the front case 101 to form a front surface of the terminal body together with the front case 101. [

In some cases, electronic components may be mounted on the rear case 102 as well. Electronic components that can be attached to the rear case 102 include a detachable battery, an identification module, a memory card, and the like. In this case, the rear case 103 for covering the mounted electronic component may be detachably coupled to the rear case 102. [ Therefore, when the rear case 103 is separated from the rear case 102, the electronic parts mounted on the rear case 102 are exposed to the outside. In other words, the rear case 103 is detachably coupled to the rear surface of the terminal body formed by the combination of the front case 101 and the rear case 102 to cover the back surface of the terminal body.

As shown in the figure, when the rear case 103 is coupled to the rear case 102, a side portion of the rear case 102 may be exposed. The rear case 102 may be completely covered by the rear case 103 when the rear case 130 is engaged. Meanwhile, the rear case 103 may be provided with an opening for exposing the camera 121b and the sound output unit 152b to the outside.

These cases 101, 102, and 103 may be formed by injection molding of synthetic resin or may be formed of metal such as stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

The mobile terminal 100 may be configured such that one case provides the internal space, unlike the above example in which a plurality of cases provide an internal space for accommodating various electronic components. In this case, a unibody mobile terminal 100 in which synthetic resin or metal is connected from the side to the rear side can be realized.

Meanwhile, the mobile terminal 100 may include a waterproof portion (not shown) for preventing water from penetrating into the terminal body. For example, the waterproof portion is provided between the window 151a and the front case 101, between the front case 101 and the rear case 102, or between the rear case 102 and the rear case 103 And may include a waterproof member that seals the inner space at the time of engagement thereof.

The mobile terminal 100 is provided with a display unit 151, first and second sound output units 152a and 152b, a proximity sensor 141, an illuminance sensor 142, a light output unit 154, 2 cameras 121a and 121b, first to third operation units 123a to 123c, a microphone 122, an interface unit 160, and the like.

3 and 4, the display unit 151, the first sound output unit 152a, the proximity sensor 141, the light intensity sensor 142, The first camera 121a and the first operation unit 123a are disposed on the side of the terminal body and the second operation unit 123b, the microphone 122, The second camera 121b, the third operation unit 123c and the flash 124 are disposed on the rear surface of the terminal body, 100) will be described as an example.

However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as needed, or placed on different planes. For example, the first operation unit 123a may not be provided on the front surface of the terminal body, and the second sound output unit 152b may be provided on the side of the terminal body rather than the rear surface of the terminal body.

The display unit 151 displays (outputs) the information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100, or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information have.

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, a 3D display, and an e-ink display.

In addition, the display unit 151 may exist in two or more depending on the embodiment of the mobile terminal 100. [ In this case, the mobile terminal 100 may be provided with a plurality of display portions spaced apart from one another or integrally disposed, or may be disposed on different surfaces.

The display unit 151 may include a touch sensor that senses a touch to the display unit 151 so that a control command can be received by a touch method. When a touch is made to the display unit 151, the touch sensor senses the touch, and the control unit 180 generates a control command corresponding to the touch based on the touch. The content input by the touch method may be a letter or a number, an instruction in various modes, a menu item which can be designated, and the like.

The touch sensor is formed in a film form having a touch pattern and disposed between the window 151a and a display (not shown) on the rear surface of the window 151a, or is directly patterned on the back surface of the window 151a. Metal wire. Alternatively, the touch sensor may be formed integrally with the display. For example, the touch sensor may be disposed on a substrate of the display or inside the display.

As such, the display unit 151 may form a touch screen together with the touch sensor. In this case, the touch screen may function as a user input unit 123 (see FIG. 1). In some cases, the touch screen may replace at least some of the functions of the first operation unit 123a.

The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to a user's ear and the second sound output unit 152b may be a loudspeaker for outputting various alarm sounds or multimedia playback sounds loud speakers.

The window 151a of the display unit 151 may have an acoustic hole for emitting sound generated from the first acoustic output unit 152a. However, the present invention is not limited to this, and the sound may be configured to be emitted along an assembly gap (for example, a gap between the window 151a and the front case 101) between the structures. In this case, the appearance of the mobile terminal 100 can be made simpler because the holes that are formed independently for the apparent acoustic output are hidden or hidden.

The light output unit 154 outputs light for notifying the occurrence of an event. Examples of the event include a message reception, a call signal reception, a missed call, an alarm, a schedule notification, an email reception, and reception of information through an application. The controller 180 may control the light output unit 154 to terminate the output of light when an event confirmation of the user is detected.

The first camera 121a processes a still image or a moving image frame obtained by the image sensor in a photographing mode or a video communication mode. The processed image frame may be displayed on the display unit 151 and may be stored in the memory 170.

The first and second operation units 123a and 123b are examples of the user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100, Can be collectively called. The first and second operation units 123a and 123b can be employed in any tactile manner, such as touch, push, and scroll, in a tactile manner. Also, the first and second operation units 123a and 123b can be employed in a manner that the user can operate without touching the user through a proximity touch, a hovering touch, or the like.

In the figure, the first operation unit 123a is a touch key, but the present invention is not limited thereto. For example, the first operation unit 123a may be a mechanical key or a combination of a touch key and a touch key.

The contents input by the first and second operation units 123a and 123b can be variously set. For example, the first operation unit 123a receives commands such as a menu, a home key, a cancellation, a search, and the like, and the second operation unit 123b receives commands from the first or second sound output units 152a and 152b, And a switch to the touch recognition mode of the display unit 151 can be input.

On the other hand, a third operation unit 123c may be provided on the rear surface of the terminal body as another example of the user input unit 123. [ The third operation unit 123c is operated to receive a command for controlling the operation of the mobile terminal 100, and input contents may be variously set. For example, a command for turning on / off the power, starting, ending, scrolling and the like, adjusting the size of the sound output from the first and second sound output units 152a and 152b, Mode, and the like. The third operation unit 123c may be implemented as a touch input, a push input, or a combination thereof.

The third operation unit 123c may be arranged to overlap with the display unit 151 on the front side in the thickness direction of the terminal body. For example, the third operation unit 123c may be disposed at a rear upper end portion of the terminal body so that the user can easily operate the terminal body when the user holds the terminal body with one hand. However, the present invention is not limited thereto, and the position of the third operation unit 123c may be changed.

When the third operation unit 123c is provided on the rear surface of the terminal body, a new type of user interface using the third operation unit 123c can be realized. In addition, the first operation unit 123a is not disposed on the front surface of the terminal body in place of at least a part of the functions of the first operation unit 123a provided on the front surface of the terminal body, The display unit 151 may be configured as a larger screen.

Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing the fingerprint of the user, and the controller 180 may use the fingerprint information sensed through the fingerprint recognition sensor as authentication means. The fingerprint recognition sensor may be embedded in the display unit 151 or the user input unit 123.

The microphone 122 is configured to receive a user's voice, other sounds, and the like. The microphone 122 may be provided at a plurality of locations to receive stereophonic sound.

The interface unit 160 is a path through which the mobile terminal 100 can be connected to an external device. For example, the interface unit 160 may include a connection terminal for connection with another device (for example, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port A Bluetooth port, a wireless LAN port, or the like), or a power supply terminal for supplying power to the mobile terminal 100. The interface unit 160 may be implemented as a socket for receiving an external card such as a SIM (Subscriber Identification Module) or a UIM (User Identity Module) or a memory card for storing information.

And the second camera 121b may be disposed on a rear surface of the terminal body. In this case, the second camera 121b has a photographing direction which is substantially opposite to that of the first camera 121a.

The second camera 121b may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix form. Such a camera can be named an 'array camera'. When the second camera 121b is configured as an array camera, images can be taken in various ways using a plurality of lenses, and a better quality image can be obtained.

The flash 124 may be disposed adjacent to the second camera 121b. The flash 124 illuminates the subject toward the subject when the subject is photographed by the second camera 121b.

And a second sound output unit 152b may be additionally disposed in the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a and may be used for implementing a speakerphone mode during a call.

The terminal body may be provided with at least one antenna for wireless communication. The antenna may be embedded in the terminal body or formed in the case. For example, an antenna constituting a part of the broadcast receiving module 111 (see FIG. 1) can be configured to be able to be drawn out from the terminal body. Alternatively, the antenna may be formed as a film type and attached to the inner surface of the rear case 103, or a case including a conductive material may be configured to function as an antenna.

The terminal body is provided with a power supply unit 190 (see FIG. 1) for supplying power to the mobile terminal 100. The power supply unit 190 may include a battery 191 built in the terminal body or detachable from the outside of the terminal body.

The battery 191 may be configured to receive power through a power cable connected to the interface unit 160. Also, the battery 191 may be configured to be wirelessly chargeable through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

In this figure, the rear case 103 is coupled to the rear case 102 to cover the battery 191, thereby limiting the detachment of the battery 191, As shown in Fig. When the battery 191 is detachably attached to the terminal body, the rear case 103 may be detachably coupled to the rear case 102.

The mobile terminal 100 may be provided with an accessory for protecting the appearance or for supplementing or extending the function of the mobile terminal 100. As an example of such an accessory, a cover or a pouch for covering or accommodating at least one surface of the mobile terminal 100 can be mentioned. The cover or pouch may be configured to interlock with the display unit 151 to expand the function of the mobile terminal 100. Another example of an accessory is a touch pen for supplementing or extending a touch input to the touch screen.

4 is an exploded perspective view of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 4, the mobile terminal 100 includes a base portion 181 on which electronic components for driving the mobile terminal 100 are mounted. The base portion 181 may be mounted on the front case 101, the rear case 102, or the like, or may be mounted on a separate structure or the like. The separate structure may form an intermediate case.

The substrate unit 181 is configured as an example of a control unit for operating various functions of the mobile terminal 100. The plurality of substrate portions 181 may be provided to perform the function of the control portion. Various electronic elements are mounted on the substrate portion 181 for performing such functions.

The substrate unit 181 is electrically connected to the antenna and is configured to process a radio signal corresponding to radio electromagnetic waves transmitted and received by the antenna.

Meanwhile, the mobile terminal 100 according to the present embodiment may include a separate lower case 104. The material of the lower case 104 may be metal. Accordingly, the lower case 104 can serve as an antenna for transmitting and receiving radio signals. That is, the lower case 104 is electrically connected to the base unit 181 to transmit and receive radio signals, which will be described later.

The lower case 104 is detachably coupled to the lower portions of the cases 101, 102 and 103 of the mobile terminal 100 to form a lower surface of the mobile terminal 100. The coupling structure of the lower case 104 and the cases 101, 102 and 103 will also be described later.

FIG. 5 is a perspective view illustrating an antenna structure of a mobile terminal according to an embodiment of the present invention, FIG. 6 is a perspective view showing the antenna structure of FIG. 5 combined with a display unit, FIG. 8 is a perspective view showing a connecting pin according to an embodiment of the present invention, and FIG. 9 is a perspective view showing a rear surface of a front case according to an embodiment of the present invention.

5 to 8, an antenna structure of a mobile terminal according to the present invention includes a lower case 104 forming a lower surface of a mobile terminal 100, and a lower case 104 electrically connected to the lower case 104, And a connection pin 220 electrically connecting the flexible substrate 200 to the lower case 104 and the substrate unit 181. The flexible substrate 200 is provided on a rear surface of the flexible substrate 200,

The lower case 104, the flexible substrate 200, and the substrate unit 181 are electrically connected to each other and form a loop to transmit and receive signals from the outside.

In detail, the lower case 104 is a plate made of a metal material and covers the various electronic components provided therein by forming the lower surface of the mobile terminal.

The flexible board 200 is disposed on the front surface of the front case 101 or on the rear surface of the display unit 151 and includes the board unit 181 and the lower case 104 and the connection pins 220 ). At this time, the front surface of the front case 101 may be disposed adjacent to a lower side of a seating surface 101a on which the display unit 151 is seated, and may be formed to be close to the lower case 104. The front case 101 may be formed with an exposure hole for exposing the flexible substrate 200 to the rear of the front case 101.

8, the connection pin 220 includes a body 222, a first electrode 222 extending from one end of the body 222 and electrically connected to the substrate 181 and the flexible substrate 200, And a second connection part 240 extending from the other end of the body 222 and electrically connected to the lower case 104.

The body 222 forms the center of the connection pin 220 and connects the first connection part 230 and the second connection part 240. The material of the connection pin 220 may be a metal so that current flows. Through holes 223 and 224 may be formed on the body 222 so that the protrusions 101c and 101d formed on the back surface of the front case 101 are inserted. Therefore, the connection pin 220 can be firmly fixed to the mobile terminal 100 through the engagement of the protrusions 101c and 101d and the through holes 223 and 224.

The first connection part 230 extends from one end of the body 222 to the front of the mobile terminal 100 and has a protrusion 235 at an end thereof for contacting the flexible substrate 200. The first connection part 230 may be bent at least once so that the length of the first connection part 230 may be long. That is, as the length of the electricity flowing increases, the transmission and reception ratio of the signal becomes better as the length of the electric current flows. Therefore, the connection pin 230 is provided with the bending portion to enlarge the flow length of the electric current.

Meanwhile, a plane 231 may be formed in at least one region of the first connection part 230. The plane 231 may be surface mounted on the substrate portion 181 as a surface contacting the substrate portion 181.

The second connection part 240 extends downward from the other end of the body 222, that is, inside the mobile terminal 100. The second connection part 240 may be provided with a bending part bent at least once. A protrusion 245 protruding from one surface of the second connection part 240 may be formed on the end of the second connection part 240 so as to be in contact with the lower case 104.

According to the antenna having the above structure, a closed loop in which current flows between the substrate portion 181 and the flexible substrate 200 and the lower case 104 may be formed. Particularly, the lower case 104 is provided on the outer surface of the mobile terminal 100, and the flexible substrate 200 is disposed on the lower surface of the display unit 151, thereby improving signal reception.

FIG. 10 is a perspective view showing a lower region of a mobile terminal according to a second embodiment of the present invention, and FIGS. 11 and 12 are perspective views showing a state in which a lower case is separated.

The other parts in this embodiment are the same as those in the first embodiment, but differ in that the lower case can be separated. Therefore, only the characteristic parts of this embodiment will be described, and the other parts will be used in the first embodiment.

10 to 12, the mobile terminal 400 according to the present embodiment includes a lower case 300 forming a lower region of the mobile terminal 400, do. The other case may be a rear cover 103 covering the rear surface of the mobile terminal 400. However, this is an exemplary one, and the detachable coupling structure of the lower case 300 can be applied to other cases as well.

In detail, the inner surface of the rear cover 103 is formed with a rail 103a which is recessed at a predetermined distance toward the rear and extends in the moving direction of the lower case 300. A movable protrusion 310 having the same width as the width of the rail 103a is formed at the upper end of the lower case 300 as well. Therefore, when the lower case 300 is coupled to the rear cover 103, the movement protrusion 310 can be inserted into the rail 103a.

Conventional mobile terminals have drawbacks in that it is inconvenient for the electronic components to be assembled or replaced because they are coupled through screws between cases or injection molded integrally. However, according to the present embodiment, since the lower case 103 is detachable, it is possible to facilitate the replacement and disposition of the electronic parts disposed inside the mobile terminal 100.

Claims (8)

A display unit for outputting an image;
A front case having a front surface on which a display surface is seated;
A rear case disposed at the rear of the front case and forming an inner space by engaging with the front case;
A substrate portion provided in the inner space and on which various electronic components are mounted; And
And an antenna which is electrically connected to the substrate unit and transmits and receives a signal from the outside by forming a loop through which currents are circulated,
The antenna includes:
A lower case coupled to a lower surface of the front case and the rear case;
A flexible board disposed between the front case and the display unit; And
And a connection pin for interconnecting the substrate portion, the lower case, and the flexible substrate.

The method according to claim 1,
The connecting pin
A first connection part extending from one end of the body toward the flexible substrate and having a protrusion for contacting the flexible substrate at an end thereof; a first connection part extending downward from the other end of the body, And a second connection portion on which the protrusion is formed.
3. The method of claim 2,
And at least a part of an outer surface of the first connection part is mounted on the substrate part.
3. The method of claim 2,
Wherein the first connection portion and the second connection portion are formed with a bending region bent at least once.
3. The method of claim 2,
A protrusion protruding rearward is formed on the back surface of the front case,
Wherein the through hole is formed on the body such that the protrusion is inserted.
The method according to claim 1,
Further comprising a rear cover detachably coupled to a rear surface of the rear case,
And the lower case is detachably coupled to the rear cover.
The method according to claim 6,
Wherein a rail is formed on the inner surface of the rear cover so as to be recessed from the inner surface,
And a moving protrusion is formed on the upper side of the lower case so as to be slidable on the rail.
The method according to claim 1,
Wherein the front case is formed with an exposure hole for exposing the flexible substrate backward.

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