KR101233183B1 - Mobile terminal - Google Patents

Abstract

The present invention relates to a portable terminal that can effectively shield electromagnetic waves generated in the portable terminal and can increase the efficiency of the mounting process for mounting the shield can.

Description

Portable Terminal {MOBILE TERMINAL}

The present invention relates to a portable terminal. More specifically, the present invention relates to a portable terminal capable of effectively shielding electromagnetic waves generated in the portable terminal and increasing the efficiency of the mounting process for mounting the shield can.

Portable terminals (mobile phones, MP3 players, PMPs, laptops, tablet computers) are devices that allow users to use a variety of contents while carrying them. In order to become more and more miniaturized and thinner.

These portable terminals are becoming multifunctional in order to meet the increasing demands of users, and the boundaries of each portable terminal are being broken down.

Therefore, in order to fulfill various demands as the portable terminal becomes smaller and thinner, semiconductor devices and the like mounted on the circuit board 200 provided inside the portable terminal are miniaturized and the degree of integration thereof is increasing.

Semiconductor devices mounted on the circuit board 200 may generate electromagnetic waves, and may adversely affect the operation of the electronic device or the human body. This phenomenon is called an electromagnetic interference (EMI) phenomenon. It not only generates noise of electronic devices but also acts as a harmful element to human body.

Therefore, in recent years, electronic parts such as semiconductor devices mounted on the printed circuit board 200 inside an electronic device or a certain area in which the semiconductor devices are mounted are covered with a shield can made of metal to be generated from the electronic parts. Attempts have been made to minimize or affect the operation of other electronic devices as well as their own by blocking or reducing EMI.

However, with the miniaturization and thinning of portable terminals, the degree of integration of the circuit board increases, making it difficult to secure space for mounting the shield can, and minimizing the parts, so that the precision of the assembly process when mounting the shield can is required. That is, the mounting or assembling process of the shield can is performed in a separate process after fabrication of the circuit board is completed.

Therefore, the fixing clip for fixing the shield can is miniaturized, so that the operator can mount the shield can by inserting the shield can into the correct position of the clip. Such, the precision of the assembly process has a problem causing an increase in working time and defective rate.

The present invention can effectively shield the electromagnetic waves generated in the portable terminal, improve the efficiency of the mounting process for mounting the shield can, and to solve the problem to provide a portable terminal with a simplified structure of the shield can.

In order to solve the above problems, the present invention shields at least one or more circuit boards, a predetermined area of the circuit board, a shield can whose edge is bent in the direction of the circuit board, and the circuit board shielded by the shield can. A ground line is formed along the edge of a predetermined region of the substrate, and a plurality of fastening clips are joined to the circuit board with a plurality of spaced apart along the ground line, and coupled to an inner surface of the edge of the shield can. Provide a portable terminal.

Here, the shield can includes a shielding portion parallel to the circuit board and a fastening portion bent in the direction of the circuit board from the shielding portion and fastened to the fastening clip, wherein the fastening clip is parallel to the circuit board and bonded to the circuit board. And a clip portion that is bent and extended at an end portion of the junction portion to be coupled to the coupling portion of the shield can.

In addition, a plurality of clip portions of the fastening clip may be provided at spaced positions.

In addition, the clip portion of the fastening clip may be bent and extended at both ends in the longitudinal direction of the junction portion may be provided with two.

In addition, an extension part extending in the same plane from the joint part may be provided between the clip parts.

The support unit may further include a support part extended from an outer surface of the fastening part and bent in a direction perpendicular to the longitudinal direction of the joint part.

Here, a fastening protrusion protruding toward the clip portion of the fastening clip is formed in the fastening portion of the shield can, and a fastening groove or a fastening hole is formed to secure the fastening state by seating the fastening protrusion on the clip portion of the fastening clip. Can be.

In addition, a plurality of clip portions of the fastening clip are provided at a spaced apart position, and the fastening groove or the fastening hole is formed only in a part of the clip portion of the clip portion of the plurality of fastening clips.

In addition, the fastening portion and the cross section of the junction may have a "b" shape.

In addition, the end of the clip portion of the fastening clip may be inclined in the direction of the shielding area shielded by the shield can.

The joining portion of the fastening clip may be joined to the circuit board so as to face an inner side of the shielding area shielded by the shield can.

Here, the bonding portion of the fastening clip may be bonded to the circuit board so as to face the shielding area that is shielded by the shield can.

The circuit board may be a double-sided circuit board having at least one semiconductor device mounted on a front surface and a back surface thereof, and the shield can may be mounted on at least one of a front surface and a rear surface of the circuit board.

The electromagnetic wave generated in the portable terminal according to the present invention can be effectively shielded. In addition, according to the portable terminal according to the present invention, the efficiency of the mounting process for mounting the shield can can be increased.

In addition, according to the portable terminal according to the present invention, since the mounting structure of the shield can can be simplified and the volume and area occupied by the mounting structure of the shield can can be minimized, the portable terminal can be further slimmed or downsized.

In addition, according to the portable terminal according to the present invention, the efficiency of the shield can mounting process can be increased and the defective rate can be reduced to enhance the price competitiveness of the product.

1 is a block diagram of a portable terminal related to an embodiment of the present invention.
2 shows a perspective view of a portable terminal according to the present invention.
Figure 3 is an exploded perspective view of the portable terminal according to the present invention from the front.
Figure 4 is an exploded perspective view of the portable terminal according to the present invention from the rear.
FIG. 5 illustrates a state in which the circuit board and the shield can shown in FIG. 4 are fastened.
Figure 6 shows one embodiment of a fastening clip mounted to a portable terminal according to the present invention.
Figure 7 shows another embodiment of a fastening clip mounted to a portable terminal according to the present invention.
8 shows another embodiment of a fastening clip mounted to a portable terminal according to the present invention.
Figure 9 shows another embodiment of a fastening clip mounted to a portable terminal according to the present invention.
10 shows another embodiment of a fastening clip mounted to a portable terminal according to the present invention.
11 shows another embodiment of a fastening clip mounted to a portable terminal according to the present invention.
12 is a cross-sectional view of the mounting state of the fastening portion of the fastening clip and the shield can of the portable terminal according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Like numbers refer to like elements throughout.

The portable terminal described herein is not limited to a mobile phone as a telephone illustrated in the drawings, but is a smart phone, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia (PMP). Since it can be widely applied to a player, navigation, etc., it should be understood as a concept including a portable electronic product.

First, referring to FIG. 1, a portable terminal according to the present invention will be described in terms of components according to functions.

1 is a block diagram of a portable terminal related to an embodiment of the present invention.

The illustrated mobile terminal 100 includes a wireless communication unit 110, an A / V (Audio / Video) input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, The interface unit 170 may include a controller 180, a power supply unit 190, and the like. When the components are implemented in an actual application, two or more components may be combined into one component as needed, or one component may be divided into two or more components.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short distance communication module 114 and a GPS module 115.

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

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to 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.

Meanwhile, the broadcast related information may be provided through a mobile communication network, and in this case, it may be received by the mobile communication module 112.

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

The broadcast receiving module 111 receives broadcasting signals using various broadcasting systems. In particular, the broadcasting receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S) Only Digital Broadcast-Handheld (DVB-H), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like.

Of course, the broadcast receiving module 111 may be configured to be suitable for all broadcast systems providing broadcast signals as well as the above-described digital broadcast system.

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

In addition, 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. Here, 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 the wireless Internet module 113 can be built in or externally.

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 the short distance communication technology.

In addition, the Global Position System (GPS) module 115 receives position information from a plurality of satellites.

The wireless communication unit 110 may be embodied as an antenna module. The antenna module may be a multiple antenna (MIMO).

An audio / video (A / V) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122.

The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video call mode or the photographing mode. The processed image frame may 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 122 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into 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. The microphone 122 may implement various noise removing algorithms for removing noise generated in the process of 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 dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, and the like. Particularly, when the touch pad has a mutual layer structure with the display unit 151, which will be described later, it can be called a touch screen. The user input unit 130 may be provided in one portable terminal according to the type of each input.

The sensing unit 140 detects the current state of the portable terminal 100 such as the open / closed state of the portable terminal 100, the position of the portable terminal 100, the presence or absence of a user contact, and the like to control the operation of the portable terminal 100. Generate a sensing signal.

For example, when the portable terminal 100 is in the form of a slide phone, whether the slide phone is opened or closed may be sensed. Also, it is responsible for a sensing function related to whether or not the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like.

The interface unit 170 serves as an interface with all external devices connected to the portable terminal 100. For example, wired / wireless headsets, external chargers, wired / wireless data ports, card sockets (e.g. memory cards, SIM / UIM cards), audio input / output (I / O) terminals, video I / O (Input / Output) terminal, earphone, etc.

The interface unit 170 may receive data from an external device or receive power and transmit the data to each component inside the portable terminal 100 or transmit data within the portable terminal 100 to an external device.

The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal. The output unit 150 includes a display unit 151, an audio output module 152, an alarm unit 153, a haptic module 154, and the like. This may be included.

The display unit 151 displays and outputs information processed by the portable terminal 100. For example, when the portable terminal is in a call mode, a user interface (UI) or a graphic user interface (GUI) related to a call is displayed. When the portable terminal 100 is in a video call mode or a photographing mode, the mobile terminal 100 displays a photographed and / or received image, a UI, or a GUI.

Meanwhile, as described above, when the display unit 13 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.

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, a three-dimensional display 3D display).

In addition, two or more display units 151 may exist according to the implementation form of the portable terminal 100.

The sound output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output module 152 may also output a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed in the portable 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 occurrence of an event of the portable terminal 100. Examples of events occurring in the portable terminal include call signal reception, message reception, key signal input, and touch input. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153.

The haptic module 154 generates various tactile effects that the user can feel. Vibration is a representative example of the haptic effect generated by the haptic module 154. The intensity and pattern of vibration generated by the haptic module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output. In addition to vibration, the haptic module 154 may be configured to provide a pin array that vertically moves with respect to the contact skin surface, a jetting force or suction force of air through an injection or inlet port, grazing to the skin surface, contact of an electrode, electrostatic force, and the like. Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation. The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. Two or more haptic modules 154 may be provided according to a configuration aspect of the portable terminal 100.

The memory 160 may store a program for processing and controlling the controller 180 and may provide a function for temporarily storing input / output data (for example, a phone book, a message, a still image, a video, etc.). It can also be done.

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 , And a ROM. ≪ / RTI >

In addition, the portable terminal 100 may operate a web storage that performs a storage function of the storage unit 150 on the Internet.

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

In the above, the portable terminal according to the present invention has been described in terms of components according to functions. Hereinafter, referring to FIG. 2, the portable terminal according to the present invention will be further described in terms of components according to appearance.

Hereinafter, for convenience of description, a bar type portable terminal will be described as an example among various types of portable terminals such as a folder type, a bar type, a swing type, a slider type, and the like. Therefore, the present invention is not limited to the bar type portable terminal, but can be applied to all types of portable terminals including the above-described type.

2 shows a perspective view of a portable terminal according to the present invention. Specifically, Figure 2 (a) is a front perspective view of an example of a portable terminal according to the present invention.

The body includes a cover forming an appearance. In this embodiment, the cover may be divided into a front cover 101 and a rear cover 102. Various electronic components may be embedded in a space formed between the front cover 101 and the rear cover 102. At least one inner case may be further disposed between the front cover 101 and the rear cover 102.

The cover or cases may be formed by injecting a synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The user input unit 130 is manipulated to receive a command for controlling the operation of the portable terminal 100 and may include a plurality of user input units 131, 132, and 133. The user inputs 131, 132, and 133 may also be collectively referred to as manipulating portions, and may be employed in any manner as long as the user is tactile in a tactile manner.

Content input by the first or third user input units 131, 132, and 133 may be variously set. For example, the first user input unit 131 receives a command such as start, end, scroll, and the like, and the second user input unit 132 adjusts or outputs the sound output from the sound output module 152. Command), such as switching to the touch recognition mode, and the like, and the third user input unit 133 may be a camera button for operating the camera 122.

The display unit 151, the audio output module 152, the camera 121, and the first user input unit 131 may be disposed in the portable terminal main body, mainly the front cover 101. The front cover 101 may be made of tempered glass or the like.

The display unit 151 occupies most of the main surface of the front cover 101. The sound output unit 151 and the camera 121 may be disposed in areas adjacent to one end of both ends of the display unit 151, and the first user input unit 131 may be disposed in an area adjacent to the other end. The second user input unit 132, the third user input unit 133, the interface 170, and the like may be disposed on side surfaces of the portable terminal.

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

Referring to FIG. 2B, a camera 121 ′ may be additionally mounted on the rear of the terminal body, that is, the rear cover 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 provided in the front cover 101 has a low pixel so that the user's face is photographed and transmitted to the counterpart in case of a video call, and the camera 121 'has a general subject. In many cases, it may be configured to have a high pixel since the photographing is not performed immediately.

The cameras 121 and 121 'may be installed in the main body of the terminal so as to be rotatable or pop-up.

A flash 123 and a mirror 124 may be additionally disposed adjacent to the camera 121 '. The flash 123 may provide illumination toward 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 antenna (not shown) for receiving a broadcast signal may be additionally disposed on the side surface of the terminal body in addition to an antenna for a call or the like. An antenna that forms part of the broadcast receiving module 111 (refer to FIG. 1) may be installed to be pulled out of the terminal body.

The terminal body may be equipped with a power supply unit 190 (see FIG. 3) for supplying power to the portable terminal 100. The power supply unit may be built in the terminal body, or may be configured to be directly removable from the outside of the terminal body.

In the embodiment illustrated in FIG. 2, the power supply unit may be detachably detached from the portable terminal in a state in which the rear cover 102 is removed.

The microphone 122 of the portable terminal illustrated in FIG. 2 may be provided at the lower side of the rear cover 102, and the interface unit 170 may be provided at the side of the rear cover 102.

Figure 3 is an exploded perspective view of the portable terminal according to the present invention from the front.

In the above-described embodiment, the cover of the portable terminal is divided into a front cover 101 and a rear cover 102, and at least one inner case may be additionally disposed between the front cover 101 and the rear cover 102. have.

In the embodiment shown in FIG. 3, the inner case includes a front case 103 and a rear case 104.

The front case 103 may be equipped with an LCD panel or the like as the display unit 151, and tempered glass or a transparent panel may be provided as the front cover 101 in front of the display unit 151.

The front cover 101 may be mounted to the front case 103 constituting the inner case. The front cover 101 and the front case 103 may be attached with an adhesive or an adhesive member, without using a separate fastening part 320 material or the like.

A portion of the front case 103 constituting the inner case may be configured to be exposed to the outside of the portable terminal. As shown in FIG. 2A, the edge of the front case 103 may be configured to be exposed to the outside to form an edge of the portable terminal.

The circuit board 200 may be provided between the front case 103 and the rear case 104 constituting the inner case. The front case 103 and the rear case 104 are fastened by the fastening part 320 material, and a circuit board 200 having a PCB shape can be accommodated therebetween.

The circuit board 200 may be installed at a position that does not overlap in the thickness direction of the battery mounting unit 104g and the portable terminal. This is to minimize the thickness of the portable terminal.

Accordingly, as shown in FIG. 3, the circuit board 200 is disposed at an upper portion of a space between the front case and the rear case, and the battery mounting portion is provided at a lower rear side of the rear case 104 to have a thickness direction. As a result, the battery and the circuit board 200 may be configured not to overlap each other.

The first user input unit 131 may be mounted between the front case 103 and the rear case 104, and the front cover 101 and the front case 103 may include the first user input unit 131. Mounting holes 103h and 151h for mounting may be formed, respectively.

The circuit board 200 may be seated on the recess 104P formed in the upper direction of the rear case 104.

The flexible printed circuit board f shown in FIG. 3 may serve to connect an input unit such as the antenna module, the circuit board 200, a user input unit, or a microphone (not shown) with the circuit board 200. . That is, the flexible printed circuit board f may be used as a means for electrically connecting the respective parts at the spaced positions.

The circuit board 200 may be mounted such that a camera or the like may be mounted to expose the camera or the like through the rear cover 104.

The lower portion of the rear case 104 may be provided with a battery mounting portion (104g) for mounting the battery as the power supply unit 190.

The battery mounting part 104g may be provided on a rear surface of the inner case 104 facing the rear cover 102. As shown in FIG. 3, the battery mounting part 104g is provided under the rear surface of the inner case 104 facing the rear cover 102, has a step, and has a shape that is matched to the antenna carrier of the antenna module. Can be.

The battery mounting portion 104g may be configured in the form of a mounting groove for mounting the power supply unit 190 in the rear cover 104 direction, or may be configured in the form of an opening.

In the embodiment shown in Figure 3, the battery mounting portion 104g is configured in the form of an opening, so that the battery as the power supply unit 190 can be supported on the back side of the front case 103.

The circuit board 200 is mounted with circuit components that perform various functions. Therefore, electromagnetic waves may be generated during the use of portable terminals. In general, electromagnetic waves have useful aspects such as wireless communication and radar, and may adversely affect the operation of electronic devices. Electro Magnetic Interference) is a phenomenon that not only generates noise of electronic device but also harmful to human body.

Therefore, recently, by covering the electronic components such as semiconductor devices mounted on the electronic circuit board 200 with a shield can 300 (Shield can) to block the EMI generated from the electronic components, It does not affect the operation of other electronic devices.

As shown in an exploded perspective view of the portable terminal illustrated in FIG. 3, the shield can 300 is mounted on a circuit board 200 mounted on the portable terminal.

The shield can 300 may shield an area of a predetermined predetermined circuit board 200 rather than shielding the entire circuit board 200. Hereinafter, the shield can 300 and a mounting structure for mounting the shield can 300 on the circuit board 200 will be described with reference to FIG. 4.

Each of the components shown in FIG. 3 may be assembled by being fastened to a cover or the like by a fastening bolt (b) or the like, respectively or together.

4 is a perspective view showing an exploded state of the circuit board 200 and the shield can 300 of the portable terminal according to the present invention.

The portable terminal according to the present invention shields at least one or more circuit boards 200, predetermined areas of the circuit boards, and shields 300 of which the edges are bent in the direction of the circuit boards and the circuit boards 200. Bonded, and includes a plurality of fastening clips 400 are fastened to the inner surface of the rim of the shield can (300).

A plurality of semiconductor devices are mounted on the circuit board 200 shown in FIG. 4, and each of the semiconductor devices may generate electromagnetic waves having different sizes according to their function.

There may be one circuit board 200 mounted in a portable terminal, or a plurality of circuit boards 200 may be provided. In addition, when a plurality of circuit boards 200 are provided, the circuit boards 200 may be stacked and mounted.

The circuit board 200 may be a single-sided circuit board 200 in which semiconductor devices are mounted only on one surface thereof, or may be a double-sided circuit board 200 in which semiconductor devices are mounted only on both surfaces thereof. The shield can 300 may be mounted on at least one of front and rear surfaces of the circuit board.

The shield can 300 detachably mounted to the circuit board 200 may include a shielding part 310 and a shielding part shielding a predetermined area of the circuit board 200 in parallel with the circuit board 200. The fastening part 320 may be bent in the direction of the circuit board 200 and fastened to the fastening clip 400 to be described later, and the fastening part 320 may be positioned along a predetermined interval.

The fastening part 320 of the shield can 300 corresponds to the edge of the shield can described above, and the fastening clip 400 is fastened to an inner surface of the fastening part 320 of the shield can 300.

This is distinguished from the conventional fastening clip, if the fastening surface uses a conventional structure that is fastened while simultaneously supporting the inner surface and the outer surface of the fastening portion 320 of the shield can 300, High precision is required, which can reduce the efficiency of the work.

However, the portable terminal according to the present invention can improve the efficiency of the assembly process by improving the structure of the fastening clip to only the inner surface of the edge of the shield can as the fastening surface.

The shield can 300 may be formed of a metal plate, and the shielding part 310 and the fastening part 320 may be integrally formed.

In addition, the shield can 300 may be provided with at least one opening. The heat generated from the semiconductor devices by the opening 340 may be used as a path for radiating heat. The opening 340 may be disposed in the vicinity of a semiconductor device having a small amount of electromagnetic waves and a large amount of heat generated.

A plurality of fastening clips 400 may be provided on the circuit board 200.

The fastening clip 400 is configured to fasten the shield can 300 to the circuit board 200, and is fastened to the fastening portion 320 of the shield can 300.

Specifically, a ground line may be formed along a predetermined area of the circuit board shielded by the shield can, and the fastening clip may be joined to the ground line. This means that the fastening clip 400 can be joined in a plurality of spaced apart states along the edge of a predetermined area shielded by the shield can.

The fastening clip 400 may be joined by a method such as welding the ground line 230 of the circuit board 200.

Since the fastening clip 400 is also a metallic material, the shield can 300 may be grounded by a method of being fastened to the fastening clip 400. The width of the ground line 230 and the bottom width of the fastening clip 400 may have a corresponding width.

FIG. 5 illustrates a state in which the circuit board 200 and the shield can 300 shown in FIG. 4 are fastened. The plurality of fastening portions 320 of the shield can 300 may be fastened to the respective fastening clips 400 to ground the electromagnetic waves to the circuit board 200.

In recent years, portable terminals have advanced in performance along with thinning competition. Therefore, the respective components constituting the portable terminal can also be miniaturized.

In addition, the process of mounting the shield can 300 on the circuit board 200 may be performed later after the circuit board 200 is completed.

However, the size of the fastening clip 400 itself is miniaturized to accurately determine the mounting position with the naked eye to fasten the fastening portion 320 of the shield can 300 to the fastening clip 400.

Conventionally, the fastening clip 400 has a structure for elastically pressing and supporting both sides of the fastening part 320 of the shield can 300 and the like. However, in order to insert the fastening part 320 of the shield can 300 into each fastening part 320 accurately, each of the fastening parts 320 of the fastening clip 400 is correctly assembled into the fastening clip 400. The precision of the process was required and the workability was degraded.

Fastening clip 400 of the portable terminal according to the present invention can improve the structure of the fastening clip 400 is inserted into the fastening portion 320 of the shield can 300 can improve the workability of the worker in the assembly process.

Figure 6 illustrates one embodiment of a fastening clip 400 mounted to a portable terminal according to the present invention. 6 (a) is a perspective view of the fastening clip 400a, Figure 6 (b) is a front view of the fastening clip 400a, Figure 6 (c) is a cross-sectional view (I) of the fastening clip 400a. -I '), Figure 6 (d) is a plan view of the fastening clip (400a).

The shield can 300 is a shielding portion 310 parallel to the circuit board 200 and a fastening portion bent in the direction of the circuit board 200 from the shielding portion 310 and fastened to the fastening clip 400a ( 320, wherein the fastening clip 400a is parallel to the circuit board and is joined to the circuit board 410a and a clip part bent and extended at the end of the joint part to be fastened to the fastening part of the shield can ( 420a).

The fastening clip 400a is bent and extended at the end of the junction 430a and the junction 430a which are joined in parallel with the circuit board 200 to be coupled to the joint 320 of the shield can 300. It may include a clip portion 410a.

A plurality of clip portions 410a of the fastening clip 400a may be provided at spaced positions. In the embodiment shown in Figure 6, the clip portion 410a of the fastening clip 400a is bent and extended at both ends in the longitudinal direction of the junction may be provided with two.

The junction part 430a is a part that is bonded (eg, welded) to the circuit board 200, and may be bonded to the above-described ground line 230. The junction part 430a may have an elongated shape along the longitudinal direction of the ground line 230. Accordingly, each clip portion 410 at both ends of the junction portion 430a may be configured to be bent and extended.

The fastening clip 400a illustrated in FIG. 6 may include two clip parts 410a at spaced positions.

An extension part 450 protruding in a horizontal direction from the junction part 430a may be provided between the clip parts 410a provided at spaced positions. The extension part 450a extends in a direction perpendicular to the longitudinal direction of the junction part 430a. That is, the extension part may extend in the same plane at the joint part between the clip parts.

The extension portion 450a prevents the fastening clip 400a from falling backward and secures an adsorption area by a picker or the like during the transfer process by the automated facility.

That is, in the automated welding process, the fastening clip 400a may be transported and welded by an adsorption picker or the like.

Therefore, sufficient adsorption area must be ensured to facilitate adsorption by such pickers. Therefore, the extension portion 450a of the fastening clip 400a illustrated in FIG. 6 prevents the back from falling when the fastening clip 400a is mounted in the transport tray and the like and is absorbed in the transport tray. It may help to secure the adsorption area when picked up by or the like.

A fastening protrusion protruding toward the clip portion of the fastening clip is formed at the fastening portion of the shield can, and a fastening groove or a fastening hole for reinforcing the fastening state may be formed by seating the fastening protrusion at the clip portion of the fastening clip. have.

Specifically, in the embodiment shown in Figure 6, the clip portion 410a may be formed with a fastening hole (412a). The fastening holes 412a may be formed in each of the clip portions 410a, or may be formed only in some of the clip portions 410a.

The fastening hole 412a has a fastening protrusion 320p (see FIG. 12) formed in the fastening portion 320 of the shield can 300, and the fastening portion 320 and the fastening clip 400a of the shield can 300 are seated thereon. ) To maintain and reinforce the state of tightening.

Cross section (I-I ') of the fastening portion and the junction portion may have a "b" shape.

And, as shown in Figure 6 (c), the clip portion 410a, the upper end of the portion extending and bent in the junction portion 430a may have an inclination toward the junction portion 430a. This means that the end of the clip portion of the fastening clip has an inclination toward the shielding area shielded by the shield can.

This is to minimize the interference phenomenon with the fastening part 320 of the shield can 300 during the mounting process of the fastening part 320 of the shield can 300.

The assembly process of the shield can 300 is a manual process, and since the parts are miniaturized, mounting at the correct position requires considerable sophistication.

And, since the parts are miniaturized to the extent that they are not identified by the operator's naked eye, the user can easily mount the shield can 300 by referring to the mounting position of the shield can 300 partitioned by the ground line 230 or the like. To this end, in order to minimize the interference between the components in the mounting process can be inclined at the top of the clip portion 410a of the fastening clip (400a).

Therefore, the worker of the assembly process is to identify the mounting position of the shield can 300 with the ground line 230, etc. to which the fastening clip 400a is bonded, and cover the shield can 300 in the mounting area of the fastening clip 400a. Interference with the fastening unit 320 can be minimized by the shape of the fastening unit 320, and the fastening protrusion 320p of the fastening unit 320 of the shield can 300 is a clip of the fastening clip 400a. The fastening process may be completed by being inserted into the fastening hole 412 formed in the portion 410a.

7 shows another embodiment of a fastening clip 400b mounted to a portable terminal according to the present invention. Specifically, Figure 7 (a) is a perspective view of the fastening clip 400b, Figure 7 (b) is a front view of the fastening clip 400b, Figure 7 (c) is a cross-sectional view (I) of the fastening clip 400b. (I '), Figure 7 (d) is a plan view of the fastening clip (400b).

Descriptions duplicated with the description with reference to FIG. 6 will be omitted and will be described based on differences. A plurality of clip portions of the fastening clip are provided in a spaced apart position, and the fastening groove or the fastening hole may be formed only in a part of the clip portion of the clip portion of the plurality of fastening clips.

Specifically, in the embodiment illustrated in FIG. 7, similar to the embodiment illustrated in FIG. 6, the fastening clip 400b includes two clip portions 410b. However, not all of the fastening holes 412 are formed in each of the fastening parts 320, but the fastening holes 412 are formed only in one clip part 410 b.

In the manufacturing process of the fastening clip 400, it is possible to minimize the process of forming a fine fastening hole 412, if a sufficient fastening force is provided even by one fastening hole 412 and the fastening protrusion 320p, fastening hole 412 ) Need not be formed in all of the clip portions 410b. As shown in FIG. 7, when the fastening hole 412 is formed only in one clip part 410b, one fastening protrusion 320p is disposed at a position corresponding to the fastening part 320 of the shield can 300. Can form bays.

The clip portion 410b ′ in which the fastening hole 412 is not formed may support the shield can 300 in a horizontal direction and limit the horizontal movement of the shield can 300.

8 shows another embodiment of the fastening clip 400c mounted to the portable terminal according to the present invention. Specifically, Figure 8 (a) is a perspective view of the fastening clip 400c, Figure 8 (b) is a front view of the fastening clip 400c, Figure 8 (c) is a cross-sectional view (I) of the fastening clip 400c. (I '), Figure 8 (d) is a plan view of the fastening clip (400c).

Descriptions duplicated with the description with reference to FIGS. 6 and 7 will be omitted and will be described based on the differences.

The fastening clip 400c illustrated in FIG. 8 is also provided with a junction portion 430c joined to the circuit board 200, and one clip portion 410c extended and bent from the junction portion 430c is provided. In addition, the embodiment shown in Figure 8, even if one clip portion 410c, the extension portion 450c may be provided to prevent the fall or facilitate the pickup process.

In this case, only one fastening protrusion 320p is formed at a position corresponding to the fastening portion 320 of the shield can 300, and the length of the fastening portion 320 of the shield can 300 is clipped to the fastening clip 400. The portion 410c may be shorter than the above-described embodiments.

Similarly, the clip part 410 of the fastening clip 400 may have an inclination toward the joint part 430c as in the above-described embodiments.

9 shows another embodiment of the fastening clip 400d mounted to the portable terminal according to the present invention. Specifically, Figure 9 (a) is a perspective view of the fastening clip 400d, Figure 9 (b) is a front view of the fastening clip 400d, Figure 9 (c) is a cross-sectional view (I) of the fastening clip 400d. -I '), Figure 9 (d) is a plan view of the fastening clip (400d).

Descriptions duplicated with the description with reference to FIGS. 6 to 8 will be omitted and will be described based on differences.

In detail, the embodiment shown in FIG. 9 is different from the embodiment shown in FIG. 6, and a fastening groove 413d is formed instead of the fastening hole 412d formed in the clip portion 410d of each fastening clip 400d. .

Fastening portion 320 of shield can 300 rather than forming fastening hole 412 for fastening with fastening portion 320 of shield can 300 in clip portion 410d of downsized fastening clip 400d. This is because it may be simpler to form the fastening groove 413d on which the fastening protrusion 320p formed thereon may be seated.

The depth and the inner surface shape of the fastening groove 413d may correspond to the thickness and shape of the fastening protrusion 320p formed on the fastening portion 320 of the shield can 300.

10 shows another embodiment of a fastening clip 400e mounted on a portable terminal according to the present invention. Specifically, FIG. 10 (a) is a perspective view of the fastening clip 400e, FIG. 10 (b) is a front view of the fastening clip 400e, and FIG. 10 (c) is a sectional view (I) of the fastening clip 400e. -I '), Figure 10 (d) is a plan view of the fastening clip (400e).

Descriptions duplicated with the description with reference to FIGS. 6 to 9 will be omitted and will be described based on differences.

Unlike the embodiment illustrated in FIG. 6, the embodiment illustrated in FIG. 10 may further include a support portion 470e protruding in the lateral direction of the clip portion 410e of each fastening clip 400e.

The support portion 470e is similar to the extension portion 450e extending between the clip portion 410e of the fastening clip 400e in the same plane as the joint portion 430e to prevent the back of the fastening clip 400e from falling down. As a configuration for the action, the fastening clip 400 is configured to prevent the fall to the front.

The support part 470e may extend in a direction perpendicular to the longitudinal direction of the junction part 430 at the outer side of the clip part 410. As shown in FIG. 10, the support part may be integrally formed with the clip part 410.

Therefore, the fastening clip 400 by the support part 470e and the extension part 450e can prevent the phenomenon of falling forward or backward in the state of being loaded on the transfer tray during the transportation process.

11 shows another embodiment of a fastening clip 400 mounted to a portable terminal according to the present invention. Specifically, Figure 11 (a) is a perspective view of the fastening clip 400f, Figure 11 (b) is a front view of the fastening clip 400f, Figure 11 (c) is a cross-sectional view (I) of the fastening clip 400f. 11 (d) is a plan view of the fastening clip 400f.

Descriptions duplicated with the description with reference to FIGS. 6 to 10 will be omitted and will be described based on differences.

In the embodiment illustrated in FIG. 11, the upper inclination direction of the clip portion 410f of the fastening clip 400f is opposite to the embodiment illustrated in FIGS. 6 to 10.

The joining portion of the fastening clip may be joined to the circuit board so as to face the inside of the shielding area shielded by the shield can, but as shown in FIG. 11, the joining portion of the fastening clip is shielded by the shield can. It can be bonded to the circuit board to face the area outside.

11 shows a shielding area in which a joining area on a circuit board 200 to which the joining clip 400f is joined to the circuit board 200 is joined by a shield can 300. If it can not be secured in (S) or the ground line 230 is inconsistent with the shielding area (S) can be applied. 11 is also provided with two clip portions 410f of the fastening clip at a spaced apart position, and fastening protrusion 320p formed at the fastening portion 320 of the shield can 300 at each clip portion 410. ) Is common in that a fastening hole 412f for fixing) and an extension portion 450f for preventing fall are provided.

12 is a cross-sectional view (I-I ') of the mounting state of the fastening clip (400a, 400f) and the fastening portion 320 of the shield can 300 of the portable terminal according to the present invention.

Specifically, FIG. 12 (a) shows a cross-sectional view (I-I ') with the shield can 300 mounted on the fastening clip 400a shown in FIG. 6, and FIG. 12 (b) is shown in FIG. The state in which the shield can 300 is mounted on the fastening clip 400f.

As described above, in the embodiment illustrated in FIG. 6, the ground line 230 provided in each circuit board 200 is located inside the shielding area S shielded by the shield can 300. Therefore, the bonding portion 430 of the fastening clip 400 may be bonded 230s on the ground line 230 located in the shielding area S.

However, as shown in FIG. 12, when the ground line 230 provided in each circuit board 200 exists outside the shielding area S shielded by the shield can 300, the junction parts 430a, The 430f may be bonded in a state of being exposed to the outside of the shielding area S. Similarly, the upper inclination of the clip portion 410 of the fastening clip 400 is configured to face the shielding area S, thereby minimizing interference between components in the mounting process of the fastening part 320 of the shield can 300. can do.

In both cases illustrated in FIG. 12, the fastening holes 412a and 412f formed in the clip parts 410a and 410f of the fastening clip 400 are seated at the protrusions formed in the fastening part 320 of the shield can 300. To strengthen the fastening state.

Of course, the fastening hole 412 or the fastening groove 413 is formed in the fastening portion 320 of the shield can 300 and to form a fastening protrusion 320p, etc. in the clip portion 410 of the fastening clip 400. Each position may be changed in a manner.

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims. . It is therefore to be understood that the modified embodiments are included in the technical scope of the present invention if they basically include elements of the claims of the present invention.

100: portable terminal
200: circuit board
300: shield can
400: Fastening clip

Claims (13)

A circuit board including at least one shielding area and a ground line formed along an edge of the shielding area;
A shield can shielding a shielding area of the circuit board and including a shielding part parallel to the circuit board and a fastening part bent in the direction of the circuit board from the shielding part; And
And a plurality of fastening clips joined to the circuit board with a plurality of spaced apart along the ground line, and fastened to an inner surface of the fastening part.
The fastening clip,
A junction part bonded to the circuit board; And
And a clip part bent and extended at one end of the junction part to be engaged with the inner surface of the fastening part in a male and female coupling manner. delete The method of claim 1,
The clip unit of the fastening clip is characterized in that a plurality of terminals are provided at a spaced position. The method of claim 3,
The clip portion of the fastening clip is bent and extended in the longitudinal direction of the joint portion is characterized in that the portable terminal is provided with two in parallel in the longitudinal direction along the ground line. 5. The method of claim 4,
And an extension part extending in the same plane from the joint part between the clip parts. 5. The method of claim 4,
And a support part extending from an outer surface of the fastening part and bent in a direction perpendicular to the longitudinal direction of the joint part. The method of claim 1,
The fastening protrusion protruding in the direction of the clip portion of the fastening clip is formed in the fastening portion of the shield can, the fastening protrusion is seated in the clip portion of the fastening clip to form a fastening groove or fastening hole for strengthening the fastening state. A portable terminal characterized by the above. The method of claim 7, wherein
A plurality of clip portions of the fastening clip is provided in a spaced apart position, the fastening groove or the fastening hole is characterized in that formed only on a part of the clip portion of the clip portion of the plurality of fastening clips. The method of claim 1,
The cross section of the fastening portion and the junction portion is characterized in that having a "b" shape. 10. The method of claim 9,
End of the clip portion of the fastening clip is characterized in that the portable terminal inclined in the direction of the shielded area shielded by the shield can. The method of claim 1,
Bonding portion of the fastening clip is a portable terminal, characterized in that bonded to the circuit board facing the shield area inside the shield can. The method of claim 1,
Bonding portion of the fastening clip is a portable terminal, characterized in that bonded to the circuit board facing the shielded area outside the shield can. The method of claim 1,
The circuit board is a double-sided circuit board on which at least one semiconductor element is mounted, respectively, on the front and rear surfaces, and the shield can is mounted on at least one of the front and rear surfaces of the circuit board.

Images