KR102018546B1 - Mobile terminal - Google Patents

Abstract

The present invention is a printed circuit board having a circuit extension part formed inside the terminal body and extending at least one side of the circuit, which is formed on the rear surface of the display part and overlaps with the display part. A receiver disposed so as not to overlap with the printed circuit board along a thickness direction of the terminal body, and one side is hooked to the receiver and the other side is formed to face the circuit extension and to electrically connect the printed circuit board and the receiver. It provides a mobile terminal including an elastic contact terminal in contact with the circuit extension.

Description

Mobile terminal {MOBILE TERMINAL}

The present invention relates to a structure for electrically connecting a receiver and a printed circuit board of a mobile terminal.

Mobile terminals are portable electronic devices that are portable and have one or more functions such as voice and video calling, information input and output, and data storage.

As the functions are diversified, the mobile terminal is implemented in the form of a multimedia player having complex functions such as taking a picture or a video, playing a music or a video file, receiving a broadcast, and playing a game.

Various new attempts have been applied in terms of hardware or software to implement the complex functions of such multimedia devices. In addition to the above attempts, a method of further improving the function of the hardware or the like may be considered.

Such improvement measures include structural changes and improvements for securing the reliability of the mobile terminal and securing user convenience. As one of the structural changes and improvements, there is an attempt to increase the size of the display unit within a limited size of the mobile terminal by reducing the length (bezel) between the display unit and the edge of the terminal, but the contact structure of the conventional receiver and the printed circuit board There was a limit.

One object of the present invention is to propose a new electrical contact structure of the receiver and the printed circuit board.

Another object of the present invention is to provide a mobile terminal that can reduce the length between the display and the edge of the terminal.

In order to achieve the above object of the present invention, a mobile terminal according to an embodiment of the present invention is a printed circuit having a circuit extension formed by extending the circuit disposed on the inside of the terminal body and disposed on at least one side to the side A receiver disposed on a rear surface of a substrate and a display unit and partially overlapping with the display unit, the receiver being disposed so as not to overlap the printed circuit board along a thickness direction of the terminal body, and one side of which is hooked to the receiver and the other side of the receiver. And an elastic contact terminal formed to face the circuit extension and contacting the circuit extension to electrically connect the printed circuit board and the receiver.

According to an example related to the present invention, the receiver includes: a locking step formed to protrude in a direction in which the printed circuit board is disposed to support the one side when the hook of the elastic contact terminal is coupled, and both sides of the locking step; It includes a mounting portion protruding and connected to each other and forming a hole corresponding to the elastic contact terminal.

The elastic contact terminal, the engaging portion is formed to be bent along the shape of the locking jaw so as to be caught by the locking jaw through the hole, a portion of the mounting portion so as to pass through the hole and surround at least a portion of the mounting portion And a coupling part that is bent and formed to be opposite to each other by the mounting part so as to be bent and fixed to the mounting part, and a contact part spaced apart from the mounting part so as to be elastically deformable and in contact with the circuit extension part.

According to another example related to the present invention, a mobile terminal is provided between the elastic contact terminal and the voice coil to maintain a voice coil extending into the elastic contact terminal inside the receiver in contact with the elastic contact terminal. It further comprises a junction formed.

According to another example related to the present invention, the mobile terminal further includes a bonding part applied to the upper portion of the joint to protect the voice coil exposed to the outside of the receiver and prevent the elastic contact terminal from being separated.

According to the present invention having the above-described configuration, the receiver and the printed circuit board can be electrically connected in a state not to overlap along the thickness direction of the terminal body, the receiver does not increase the thickness of the terminal even if disposed on the back of the display unit You may not.

In addition, in the present invention, since a part of the receiver is disposed to overlap the display unit, the length between the display unit and the edge of the terminal can be reduced by the overlapping length.

1 is a block diagram of a mobile terminal associated with one embodiment of the present invention;
Figure 2a is a front perspective view of an example of a mobile terminal according to the present invention.
FIG. 2B is a rear perspective view of the mobile terminal shown in FIG. 2A.
3 is a conceptual diagram illustrating a coupling method of a receiver and an elastic contact terminal according to an embodiment of the present invention.
4 is a conceptual diagram illustrating a method of electrically connecting the receiver shown in FIG. 3 to a printed circuit board.
Figure 5 is a partial front perspective view comparing the difference in appearance of the terminal between the receiver and the printed circuit board arranged in the thickness direction of the terminal body and the longitudinal or width direction.
FIG. 6 is a partial cross-sectional view of the mobile terminals shown in FIG. 5 taken along line VIa-VIa and line VIb-VIb, respectively; FIG.

Hereinafter, a mobile terminal according to the present invention will be described in detail with reference to the drawings. In the present specification, the same or similar reference numerals are assigned to the same or similar configurations in different embodiments, and the description thereof is replaced with the first description. As used herein, the singular forms "a", "an" and "the" include plural forms unless the context clearly indicates otherwise. In addition, the suffixes "module" and "unit" for the components used in the following description are given or mixed in consideration of ease of specification, and do not have distinct meanings or roles from each other.

Hereinafter, a mobile terminal according to the present invention will be described in more detail with reference to the accompanying drawings. In the present specification, the same or similar reference numerals are assigned to the same or similar configurations in different embodiments, and the description thereof is replaced with the first description. As used herein, the singular forms "a", "an" and "the" include plural forms unless the context clearly indicates otherwise. In addition, the suffix "part" for the components used in the following description is given or mixed in consideration of ease of specification, and does not have a meaning or role distinguished from each other.

The mobile terminal described herein may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, and the like. However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, and the like, except when applicable only to the mobile terminal 100.

1 is a block diagram of a mobile terminal 100 according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, and an interface. The unit 170, the controller 180, and the power supply unit 190 may be included. The components shown in FIG. 1 are not essential, so that the mobile terminal 100 may have more components or fewer components.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules that enable wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and a network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless internet module 113, a short range communication module 114, a location information module 115, and the like. .

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 mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a previously generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

The broadcast related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

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

The broadcast receiving module 111 may include, for example, Digital Multimedia Broadcasting-Terrestrial (DMB-T), Digital Multimedia Broadcasting-Satellite (DMB-S), Media Media Forward Link Only (FLO), and Digital Video Broadcasting (DVB-H). Digital broadcast signals may be received using digital broadcasting systems such as broadcast-handheld (ISDB-T) and integrated services digital broadcast-terrestrial (ISDB-T). Of course, the broadcast receiving module 111 may be configured to be suitable for not only the above-described digital broadcasting system but also other broadcasting systems.

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

The mobile communication module 112 transmits and receives a wireless signal with at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call call signal, or a text / multimedia message.

The wireless internet module 113 refers to a module for wireless internet access and may be embedded or external to the mobile terminal 100. Wireless Internet technologies may include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

The short range communication module 114 refers to a module for short range communication. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

The location information module 115 is a module for obtaining a location of the mobile terminal 100, and a representative example thereof is a GPS (Global Position System) module.

Referring to FIG. 1, the 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. Two or more cameras 121 may be provided according to the use environment.

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 may be converted into a form transmittable to the mobile communication base station through the mobile communication module 112 and output in the call mode. 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 input data for the user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, and the like.

The sensing unit 140 is a mobile terminal 100 such as an open / closed state of the mobile terminal 100, a location of the mobile terminal 100, a presence or absence of a user contact, an orientation of the mobile terminal 100, an acceleration / deceleration of the mobile terminal 100, and the like. A sensing signal for controlling the operation of the mobile terminal 100 is generated by detecting the current state. For example, when the mobile terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. In addition, whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to the external device may be sensed. The sensing unit 140 may include a proximity sensor 141.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154. Can be.

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

The display unit 151 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED) ), At least one of a flexible display 151 and a 3D display 151.

Some of these displays 151 may be configured to be transparent or light transmissive so that the outside can be seen therethrough. This may be referred to as a transparent display 151. A representative example of the transparent display 151 is TOLED (Transparent OLED). The rear structure of the display unit 151 may also be configured as a light transmissive structure. By this structure, the user can see the object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the implementation form of the mobile terminal 100. For example, the plurality of display units 151 may be spaced apart or integrally disposed on one surface of the mobile terminal 100, or may be disposed on different surfaces.

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 151 may be configured in addition to an output device. Can also be used as an input device. The touch sensor may have, for example, a form of a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in pressure applied to a specific portion of the display unit 151 or capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor may be configured to detect not only the position and area of the touch but also the pressure at the touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and then transmits the corresponding data to the controller 180. As a result, the controller 180 can know which area of the display unit 151 is touched.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the mobile terminal 100 surrounded by the touch screen or near the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays. Proximity sensors have a longer life and higher utilization than touch sensors.

Examples of the proximity sensor include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. When the touch screen is capacitive, the touch screen is configured to detect the proximity of the pointer by the change of the electric field according to the proximity of the pointer. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." The position where the proximity touch is performed by the pointer on the touch screen refers to a position where the pointer is perpendicular to the touch screen when the pointer is in proximity proximity.

The proximity sensor detects a proximity touch and a proximity touch pattern (for example, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, and a proximity touch movement state). Information corresponding to the sensed proximity touch operation and proximity touch pattern may be output on the touch screen.

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

The haptic module 154 generates various haptic effects that a 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 may be sequentially output.

In addition to the vibration, the haptic module 154 may be used for stimulation such as a pin array vertically moving with respect to the contact skin surface, a jetting force or suction force of air through an injection or inlet, grazing to the skin surface, contact of an electrode, and electrostatic force. Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.

The haptic module 154 may not only deliver the haptic effect through direct contact, but also may implement the user to feel the haptic effect through a muscle sense such as a finger or an arm. Two or more haptic modules 154 may be provided according to configuration aspects of the mobile terminal 100.

The memory 160 may store a program for the operation of the controller 180 and may temporarily store input / output data (for example, a phone book, a message, a still image, a video, etc.). The memory 160 may store data regarding vibration and sound of various patterns output when a touch input on the touch screen is performed.

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), RAM (Random Access Memory, RAM), Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM), Magnetic Memory, Magnetic It may include a storage medium of at least one type of disk, optical disk. The mobile terminal 100 may operate in connection with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device, receives power, transfers the power to each component inside the mobile terminal 100, or transmits data inside the mobile terminal 100 to an external device. For example, wired / wireless headset ports, external charger ports, wired / wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input / output (I / O) ports, The video input / output (I / O) port, the earphone port, and the like may be included in the interface unit 170.

The identification module is a chip that stores various types of information for authenticating the usage rights of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identify module (SIM), and a universal user authentication module ( Universal Subscriber Identity Module (USIM), and the like. A device equipped with an identification module (hereinafter referred to as an 'identification device') may be manufactured in the form of a smart card. Therefore, the identification device may be connected to the mobile terminal 100 through a port.

The interface unit 170 may be a passage for supplying power from the cradle to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, or various commands input from the cradle by a user. It may be a passage through which a signal is transmitted to the mobile terminal 100. Various command signals or power input from the cradle may be operated as signals for recognizing that the mobile terminal 100 is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal 100. For example, perform related control and processing for voice calls, data communications, video calls, and the like. The controller 180 may include a multimedia module 181 for playing multimedia. The multimedia module 181 may be implemented in the controller 180 or may be implemented separately from the controller 180.

The controller 180 may perform a pattern recognition process for recognizing a writing input or a drawing input performed on the touch screen as text and an image, respectively.

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.

Various embodiments described herein may be implemented in a recording medium readable by a computer or similar device using, for example, software, hardware or a combination thereof.

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

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

2A is a front perspective view of an example of a mobile terminal 100 according to the present invention. FIG. 2B is a rear perspective view of the mobile terminal 100 shown in FIG. 2A.

2A and 2B, the mobile terminal 100 includes a main body of a display only phone (DOP) type. However, the present invention is not limited thereto and may be applied to various structures such as a bar type, a slide type, a folder type, a swing type, and the like, in which two or more main bodies are coupled to be movable relative to each other. Furthermore, the mobile terminal described herein may be any portable electronic device having a camera and a flash, for example, a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA). ), PMO (Portable Multimedia Player) and the like.

The terminal body includes a case (which may be called a casing, a housing, a cover, etc.) forming an external appearance. The case includes a front case 101 and a battery cover 103 covering a surface opposite to the front case 101 and a rear case 102 disposed between the front case 101 and the battery cover 103. Can be distinguished. Various electronic components are embedded in the space formed between the front case 101 and the rear case 102. The cases may be formed by injecting synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The front surface of the terminal body includes a display unit 151, a first sound output unit 152, a front camera unit 121, and a user input unit 131.

The display unit 151 includes a liquid crystal display (LCD) module, an organic light emitting diodes (OLED) module, an e-paper, and the like that visually express information. The display unit 151 may include a touch sensing means to be input by a touch method. Hereinafter, the display unit 151 including the touch sensing means will be referred to as a 'touch screen'. If there is a touch on any place on the touch screen, the content corresponding to the touched position is input. The content input by the touch method may be letters or numbers or menu items that can be indicated or designated in various modes. The touch sensing means is formed to be translucent so that the display unit 151 can be seen, and may include a structure for increasing the visibility of the touch screen in a bright place. According to FIG. 2A, the touch screen occupies most of the front surface of the front case 101.

The first sound output unit 152 may be implemented in the form of a receiver for transmitting a call sound to the user's ear or a loud speaker for outputting various alarm sounds or reproduction sounds of multimedia.

The front camera unit 121 processes an image frame such as a still image or a video obtained by an image sensor in a video call mode or a photographing mode. The processed image frame may be displayed on the display unit 151.

The image frame processed by the front camera unit 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. Two or more front camera units 121 may be provided according to a usage environment.

The user input unit 131 is manipulated to receive a command for controlling the operation of the mobile terminal 100 and may include a plurality of input keys. The input keys may be collectively referred to as a manipulating portion, and may be employed in any manner as long as the user has a tactile feeling and manipulates the input keys.

For example, a dome switch or a touch screen that can receive a command or information by a user's push or touch operation, a touch pad, or a wheel that rotates keys or a jog or a joystick can be implemented. Can be. Content input by the user input unit 131 may be variously set. For example, it may be for inputting a start, end, scroll, and the like.

Side keys 132 and the interface unit 170 are disposed on the side of the rear case 102.

The side key 132 may be collectively referred to as an operation unit, and may receive a command for controlling the operation of the mobile terminal 100. The side key 132 may be employed in any manner as long as it is a tactile manner. The contents input by the side key 132 may be variously set. For example, the side key 132 may receive a command such as controlling the image input unit, adjusting the volume of the sound output from the sound output unit 152, or switching to the touch recognition mode of the display unit 151. have.

The interface unit 170 serves as a path allowing the mobile terminal 100 according to the present invention to exchange data with an external device. For example, the interface unit 170 is wired or wirelessly, a connection terminal for connecting with the earphone, a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port (Bluetooth Port), a wireless LAN port ( Wireless LAN Port) or the like, or at least one of power supply terminals for supplying power to the mobile terminal 100. The interface unit 170 may be implemented in the form of a socket for receiving an external card, such as a subscriber identification module (SIM) or a user identity module (UIM), a memory card for storing information.

The antenna for receiving a broadcast signal may be additionally disposed on the side of the main body of the terminal. 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 rear camera unit 121 'and the power supply unit 190 are disposed at the rear of the terminal body.

The rear camera part 121 ′ may be a camera having a photographing direction substantially opposite to the front camera part 121 disposed on the front surface, and having different pixels from the front camera part 121.

For example, the front camera unit 121 has a low pixel so that it is not overwhelming to take a user's face and transmit it to a counterpart in a video call, and the rear camera unit 121 'immediately photographs a general subject. It is desirable to have a high pixel because it is not transmitted in many cases. The front and rear camera units 121 and 121 'may be installed in the terminal body to be rotatable or pop-up.

The flash 123 is disposed adjacent to the rear camera unit 121 '. The flash 123 shines light toward the subject when the subject is photographed by the rear camera unit 121 ′.

The mirror 124 may be disposed adjacent to the flash 123. The mirror allows the user to see his / her own face or the like when the user wants to photograph himself (self-photographing) by using the rear camera unit 121 '.

The sound output unit 152 'may be further disposed on the rear of the terminal body. The sound output unit 152 ′ may implement a stereo function together with the sound output unit 152 on the front of the terminal main body, and may be used to implement a speakerphone mode during a call.

The terminal body is equipped with a power supply unit 190 for supplying power to the mobile terminal (100). The power supply unit 190 may be built in the terminal body or may be directly detachable from the outside of the terminal body.

Hereinafter, the present invention formed to reduce the length between the edge of the display unit and the terminal will be described in detail.

3 is a conceptual diagram illustrating a coupling method of the receiver 210 and the elastic contact terminal 220 according to an embodiment of the present invention.

The receiver 210 and the elastic contact terminal 220 are not integrally formed by insert injection, but are formed separately and coupled to each other. In order to contact the receiver 210 with the printed circuit board in the longitudinal direction or the width direction of the terminal body, the bent shape of the elastic contact terminal 220 is required as shown. However, the method of inserting the receiver 210 and the elastic contact terminal 220 into a single injection molding method has a limitation in the shape of the elastic contact terminal 220 and thus cannot implement the shape as shown. Accordingly, the present invention adopts a method of manufacturing the elastic contact terminal 220 in a press die to implement the shape required for contact with the printed circuit board in advance, and to couple it to the receiver 210.

The receiver 210 includes a locking jaw 211 and a mounting portion 212 to allow the elastic contact terminal 220 to be coupled to one side thereof.

The catching jaw 211 is formed to protrude from the receiver 210 to support the elastic contact terminal 220 which is hooked to the receiver 210. Since the receiver 210 and the printed circuit board are in contact with each other in the longitudinal direction or the width direction of the terminal, the latching jaw 211 has a direction in which the printed circuit board is disposed to catch the engaging portion 220a of the elastic contact terminal 220. Protrudes.

The mounting part 212 is formed to be coupled to the engaging jaw 211 to couple the elastic contact terminal 220 to the receiver 210. The mounting part 212 is disposed adjacent to the locking jaw 211 and protrudes from both sides of the locking jaw 211 to be connected to each other to form a hole 212 ′ so that the elastic contact terminal 220 can be coupled thereto. Therefore, the hole 212 ′ is surrounded by the locking jaw 211 and the mounting portion 212. Since the elastic contact terminal 220 is directly coupled to the portion facing the locking step 211 of the mounting portion 212, the portion is formed to a thickness corresponding to the size of the elastic contact terminal 220.

As shown in FIG. 2, the remaining portion of the mounting portion except for the position where the elastic contact terminal 220 is directly coupled between the two mounting portions 212a and 212b or the elastic contact terminal 220 is directly coupled to secure durability. It can be formed thicker than the combined position.

The elastic contact terminal 220 is mounted to the receiver 210 to electrically connect the receiver 210 to the printed circuit board. The elastic contact terminal 220 includes a locking portion 220a, a coupling portion 220b, and a contact portion 220c.

The locking portion 220a is bent along the shape of the locking jaw 211 to pass through the hole 212 ′ formed in the receiver 210 and to be caught by the locking jaw 211. As illustrated, when the hook portion of the elastic contact terminal 220 is coupled, the locking portion 220a may be caught on the locking jaw 211 by being partially stacked on the upper portion of the locking jaw 211 along the thickness direction of the terminal.

The coupling part 220b is connected to the locking part 220a and is bent along the shape of the mounting part 212 to be coupled to the mounting part 212 of the receiver 210. The coupling part 220b surrounds at least a part of the mounting part 212 and is pressed to both sides by the mounting part 212 and is fixed to the receiver 210. In order for the elastic contact terminal 220 to be hooked to the receiver 210, it is preferable that the bending directions of the engaging portion 220a and the coupling portion 220b are opposite to each other. Therefore, as illustrated, when the engaging portion 220a is superimposed on the upper portion of the engaging jaw 211, the engaging portion 220b surrounds the lower portion of the mounting portion 212 for hook coupling, and on the contrary, the engaging portion 220a is caught. When caught by the lower portion of the jaw 211, the coupling portion 220b surrounds the upper portion of the mounting portion 212.

The contact portion 220c is connected to the coupling portion 220b and is formed to be elastically deformable. The contact part 220c is spaced apart from the mounting part 212 and is formed to face a printed circuit board that is adjacently disposed. Since the contact portion 220c is in contact with the printed circuit board, the receiver 210 and the printed circuit board may be electrically connected to each other.

As the engaging portion 220a passes through the hole 212 ′ of the receiver 210 and is caught by the engaging jaw 211 and the engaging portion 220b is pressed and fixed by the mounting portion 212, the elastic contact terminal 220 is The hook is coupled to the receiver 210. When the hooking portion of the elastic contact terminal 220 is released by releasing the latching of the locking portion 220a from the locking jaw 211, the hook coupling of the elastic contact terminal 220 is a temporary coupling. Therefore, in order to maintain the contact state between the receiver 210 and the printed circuit board, it is necessary to completely fix the elastic contact terminal 220 to the receiver 210.

The junction 213 is formed between the receiver 210 and the elastic contact terminal 220 to maintain the contact state between the receiver 210 and the elastic contact terminal 220. A voice coil (not shown) for converting mechanical vibrations and electrical vibrations is disposed inside the receiver 210, and the voice coil extends to the outside of the receiver 210 toward the elastic contact terminal. The locking portion 220a of the elastic contact terminal 220 is in contact with the voice coil extending to the outside of the receiver 210 at the same time as the locking jaw 211. The junction 213 maintains the elastic contact terminal 220 and the receiver 210 in a bonded state so that an electrical connection state can be maintained.

The bonding part 214 is applied to the upper part of the bonding part 213 to protect the voice coil and prevent the elastic contact terminal 220 from being separated. The junction 213 only maintains the voice coil and the elastic contact terminal 220 in a bonded state, but does not fix the elastic contact terminal 220 to the receiver 210. Therefore, the bonding portion 214 is applied to the upper portion of the bonding portion 213 to cover the voice coil and the elastic contact terminal 220, it is possible to completely secure the elastic contact terminal 220 to the receiver 210.

After the elastic contact terminal 220 is hooked to the receiver 210 and the bonding portion 213 and the bonding portion 214 is formed in the receiver 210, the elastic contact terminal 220 may be disposed inside the terminal to be electrically connected to the printed circuit board. Receiver 210 is provided.

4 is a conceptual diagram illustrating a method of electrically connecting the receiver illustrated in FIG. 3 to a printed circuit board.

The elastic contact terminal 220 mounted on the receiver 210 is disposed to face the printed circuit board 230, and the printed circuit board 230 is laterally pressed toward the receiver 210 so that the elastic contact terminal 220 is pressed. And circuit extension 231 are in contact.

The receiver 210 and the printed circuit board 230 are disposed to be adjacent to the inside of the terminal body, but not to overlap each other along the thickness direction of the terminal body. The printed circuit board 230 is in contact with the elastic contact terminal 220 along the longitudinal direction or the width direction of the terminal body, whereby the receiver 210 and the printed circuit board 230 is electrically connected. A portion of the printed circuit board 230 may be cut and the receiver 210 may be disposed in the cut area so that the receiver 210 and the printed circuit board 230 do not overlap along the thickness direction of the terminal body. As a result, the receiver 210 and the printed circuit board 230 may be disposed in a limited space, and the size of the terminal may be reduced.

Hereinafter, the electrical connection structure of the receiver-printed circuit board according to the present invention described above will be described with respect to the appearance and internal structure of the terminal.

5 is a partial front perspective view comparing appearance differences between the mobile terminal 20 in which the receiver and the printed circuit board are disposed in the thickness direction of the terminal body, and the mobile terminal 200 in the longitudinal or width direction.

Since the receiver is disposed above the display unit based on the front of the terminal, the bezel (the length between the display unit and the edge of the terminal) that can be reduced in size according to the present invention is the length between the display unit and the upper edge of the terminal.

Comparing the upper bezel sizes of the two mobile terminals 20 and 200, the bezel of the mobile terminal 200 disposed along the longitudinal direction or the width direction than the bezel W1 of the mobile terminal 20 disposed along the thickness direction W2) is made smaller. According to the present invention, since the receiver and the printed circuit board are arranged along the longitudinal direction or the width direction of the terminal body and electrically connected, the receiver and the printed circuit board are arranged in the longitudinal direction or the width direction of the terminal body according to the present invention. The size of the bezel 200 may be smaller than that of the mobile terminal 20 disposed along the thickness direction, and the size of the display unit may be larger than that of the related art.

Hereinafter, the reason why the difference in appearance appears will be described using a cross-sectional view.

FIG. 6 is a partial cross-sectional view of the mobile terminals 20 and 200 shown in FIG. 5 along a line VIa-VIa and a line VIb-VIb, respectively.

The mobile terminal 20 in which the receiver 21 and the printed circuit board 23 are disposed along the thickness direction of the terminal body includes a receiver 21 in order to prevent the terminal from being too thick. Place it on the side, not on the back. As a result, since the receiver is disposed between the display unit 24 and the edge of the terminal, there is a limit to reducing the size of the bezel W1 with respect to the size of the same window 25.

The mobile terminal 200 having the receiver 210-the printed circuit board 230 connection structure according to the present invention is to contact the receiver 210 and the printed circuit board 230 in the longitudinal direction or the width direction of the terminal body. Because of the arrangement, even if the receiver 210 is disposed on the rear surface of the display unit 240, the thickness of the terminal may not be increased. In addition, by arranging the rest of the receiver 210 except for the portion in which the sound is directly emitted to overlap the display unit 240, the size of the bezel W2 may be reduced by the overlapping portion. Accordingly, the size of the display unit 240 disposed on the rear surface of the window 250 can be further increased.

The above-described mobile terminal is not limited to the configuration and method of the above-described embodiments, but the embodiments may be configured by selectively combining all or some of the embodiments so that various modifications can be made. It may be.

Claims (5)

A printed circuit board disposed inside the main body of the terminal and having a circuit extension formed by extending a circuit disposed on at least one surface of the terminal body;
A receiver disposed on a rear surface of the display unit and partially overlapping the display unit, the receiver being disposed not to overlap the printed circuit board along a thickness direction of the terminal body; And
One side is hooked to the receiver, the other side is formed to face the circuit extension, and includes an elastic contact terminal in contact with the circuit extension to electrically connect the printed circuit board and the receiver,
The receiver,
A locking step formed to protrude in a direction in which the printed circuit board is disposed to support the one side when the hook of the elastic contact terminal is coupled; And
Protruding from both sides of the locking jaw and connected to each other, the mounting part forming a hole corresponding to the elastic contact terminal,
The hole is formed so as to be surrounded by the locking step and the mounting portion, the mobile terminal, characterized in that coupled to the elastic contact terminal. delete The method of claim 1,
The elastic contact terminal,
A catching part that is bent and formed along the shape of the catching jaw to pass through the hole and to be caught by the catching jaw;
A coupling part that is bent along a shape of the mounting part to surround at least a part of the mounting part, and is coupled to the opposite side by the mounting part so as to be fixed to the mounting part; And
And a contact portion spaced apart from the mounting portion and formed to be elastically deformable to be in contact with the circuit extension portion. The method of claim 1,
The mobile terminal further comprises a junction formed between the elastic contact terminal and the voice coil to maintain a voice coil extending from the inside of the receiver to the elastic contact terminal in contact with the elastic contact terminal. . The method of claim 4, wherein
And a bonding part applied to the upper part of the bonding part to protect the voice coil exposed to the outside of the receiver and to prevent the elastic contact terminal from being separated.

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