KR20110042658A - Portable terminal - Google Patents

Abstract

PURPOSE: A mobile terminal is provided to realize a safe connection by increasing a surface which is contracted to a receptacle pin and a plug pin. CONSTITUTION: A receptacle(230) is formed to insert a plug(10) in one side of a terminal body. The receptacle includes a metal border unit(231), an insulation pad(232) and a receptacle pin set(233). The metal border unit has an accepting hole of the plug. The insulation pad is fixed inside the accepting hole. The receptacle pin set is arranged on the insulation pad. The receptacle pin set is formed to contact a plug pin set(13) which is formed on a pad of the plug. Each pin comprising the receptacle pin set includes a horizontally extended unit and a vertically extended unit.

Description

Mobile terminal {PORTABLE TERMINAL}

The present invention relates to a receptacle of a mobile terminal.

A mobile terminal is a portable device that is portable and has 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 has complicated functions such as taking a picture or a video, playing a music or video file, playing a game, receiving a broadcast, and the like. It also implements.

Many new attempts are being applied to these multimedia devices in terms of hardware or software to implement complex functions. For example, a user interface environment is provided for a user to search for or select a function easily and conveniently.

The mobile terminal has a receptacle consisting of a plurality of pins for exchanging data with an external device or receiving power from a charger.

However, in order to charge a mobile terminal or exchange data, a plug of a charger or an external device may be directly inserted into a receptacle while the mobile terminal is turned on. In this case, since the plug is not inserted in the correct direction, the pin between the pin and the pin of the receptacle may be shorted by the pin of the plug to damage the mobile terminal. In particular, the risk increases when the number of pins increases and the insertion length of the plug is shortened according to the tendency of the miniaturization of the terminal.

The present invention has been made in view of the above, and there is a technical object of preventing a short circuit by a pin even when a plug of an external device or a charger enters a receptacle of a mobile terminal.

Another object related to the present invention is to realize a stable connection state by increasing the contact surface of the pin of the plug and the pin of the receptacle.

In order to achieve the above object, the mobile terminal according to the present invention includes a receptacle formed so that the plug can be inserted into one side of the terminal body, the receptacle, the metal edge portion formed with the receiving hole of the plug; An insulation pad fixed in the accommodation hole to overlap the pad provided in the plug when the plug is inserted; And a receptacle tweezers disposed on the insulating pad and formed to be in contact with a plug tweezer formed on the pad of the plug, wherein each of the pins constituting the receptacle tweezers includes a tip portion of the metal frame portion. A horizontal extension part extending horizontally along the surface of the insulating pad, starting at a position retracted by a predetermined distance from the insulating pad; And a vertical extension part formed so as to be in contact with an end portion of the pin constituting the plug pinset by extending in a vertical direction from an end portion of the horizontal extension part.

As an example related to the present invention, a misinsertion prevention protrusion bent in an inner direction may be formed at the tip portion of the metal frame portion.

As an example related to the present invention, the retraction distance D of the horizontal extension part may be formed to 30 to 60% of the insertion length S of the plug.

As an example related to the present invention, a plurality of pin guide grooves may be formed to guide each of the pins forming the plug pin set from the distal end portion of the insulating pad to the portion where the horizontal extension portion starts.

As an example related to the present invention, the pin guide groove may be formed to start at a retracted position at a predetermined distance from the tip of the insulating pad.

As an example related to the present invention, the distal end of the insulating pad may be retracted by a predetermined distance H from the distal end of the metal rim.

As an example related to the present invention, a metal guide portion of the receptacle protrudes in a shape corresponding to a groove formed in the pad of the plug, and has a pad guide groove portion extending at least to the insertion length S of the plug. Can be.

As described above, according to the mobile terminal of the present invention, since each pin constituting the receptacle pin set is disposed to be retracted from the distal end portion of the metal rim, the possibility of shorting by the pin can be greatly reduced even when the plug is displaced.

In addition, the pinset of the receptacle includes a horizontal extension portion and a vertical extension portion, respectively, to increase the contact portion of the pin of the receptacle and to improve the connection reliability between the plug and the receptacle.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the accompanying drawings. The suffixes "module" and "unit" for components used in the following description are merely given in consideration of ease of preparation of the present specification, and do not impart any particular meaning or role by themselves. The mobile terminal described herein includes a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, and the like. However, the technical idea described herein may be applied to fixed terminals such as digital TVs and desktop computers.

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

The mobile terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory unit 160, and an interface. The unit 170, the controller 180, and the power supply unit 190 may be included. 1 shows a mobile terminal having various components. However, not all illustrated components are essential components. The mobile terminal may be implemented by more components than the illustrated components, and the mobile terminal may be implemented by fewer components. Hereinafter, the components will be described in turn.

The wireless communication unit 110 may include one or more components for wireless communication between the mobile terminal 100 and the wireless communication system or wireless communication 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. have.

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 pre-generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast signal may include 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. Meanwhile, the broadcast related information may be provided through a mobile communication network, and in this case, 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 broadcast signals using various broadcast systems, and in particular, digital multimedia broadcasting-terrestrial (DMB-T), digital multimedia broadcasting-satellite (DMB-S), and media forward link only (MediaFLO). ), Digital broadcast signals may be received using digital broadcasting systems such as DVB-H (Digital Video Broadcast-Handheld) and ISDB-T (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 is configured to be suitable for all broadcast systems providing broadcast signals as well as the digital broadcast system described above.

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

In addition, the mobile communication module 112 transmits and receives a radio 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 is a module for wireless Internet access, and the wireless Internet module 113 can be built in or externally. 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 confirming or obtaining the location of the mobile terminal. A representative example of the location information module is a GPS (Global Position System) module. The GPS module 115 calculates distance information and accurate time information away from three or more satellites, and then applies triangulation to the calculated information to accurately calculate three-dimensional current position information according to latitude, longitude, and altitude. Can be. At present, a method of calculating position and time information using three satellites and correcting an error of the calculated position and time information using another satellite is widely used. In addition, the GPS module 115 may calculate speed information by continuously calculating the current position in real time.

Meanwhile, 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 an image frame such as a still image or a moving image obtained by the image sensor in the video communication 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 unit 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 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. In particular, when the touch pad has a mutual layer structure with the display unit 151 described later, this may be referred to as a touch screen.

The sensing unit 140 detects a current state of the mobile terminal 100 such as an open / closed state of the mobile terminal 100, a location of the mobile terminal 100, presence or absence of a user contact, orientation of the mobile terminal, acceleration / deceleration of the mobile terminal, and the like. To generate a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. In addition, it is responsible for sensing functions related to whether the power supply unit 190 is supplied with power or whether the interface unit 170 is coupled to an external device. Meanwhile, the sensing unit 140 may include a proximity sensor. This will be described later with reference to the touch screen.

The interface unit 170 serves as an interface with all external devices connected to the mobile terminal 100. 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, Video I / O (Input / Output) port, earphone port, etc. may be included.

Here, the identification module is a chip that stores various types of information for authenticating the use authority of the mobile terminal 100, and includes a user identification module (UIM) and a subscriber identify module (SIM). ), A Universal Subscriber Identity Module (“USIM”), and the like. In addition, the device equipped with the identification module (hereinafter, 'identification device') may be manufactured in the form of a smart card. Accordingly, the identification device can be connected to the terminal 100 through the port. The interface unit 170 receives data from an external device or receives power and transmits the data to each component inside the mobile terminal 100 or transmits the data inside the mobile terminal 100 to an external device.

In addition, when the mobile terminal 100 is connected to an external cradle, the interface unit is a passage through which power from the cradle is supplied to the mobile terminal 100, or various command signals inputted from the cradle by a user are moved. It may be a passage that is delivered to the terminal. Various command signals or power input from the cradle may be operated as signals for recognizing that the mobile terminal is correctly mounted on the cradle.

The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal. The output unit 150 may include a display unit 151, an audio output module 152, and an alarm output module 153. have.

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

When the display unit 151 and the touch pad have a mutual layer structure and constitute a touch screen, the display unit 151 may 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).

The proximity sensor 141 may be disposed inside 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. Even when the proximity sensor is not firmly mounted, when the touch screen is capacitive, the proximity sensor may be configured to detect the proximity of the pointer by a change in an electric field according to the proximity of the pointer.

The sound output module 152 outputs audio data received from the wireless communication unit 110 or stored in the memory unit 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. In addition, the sound output module 152 outputs 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 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 occurring in the mobile terminal 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 an audio signal or a video signal. For example, the signal may be output in the form of vibration. When a call signal is received or a message is received, the alarm unit 153 may output a vibration to inform this. Alternatively, when a key signal is input, the alarm unit 153 may output a vibration in response to the key signal input. Through the vibration output as described above, the user can recognize the occurrence of the event. Of course, the signal for notification of event occurrence may be output through the display unit 151 or the voice output module 152.

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

The memory unit 160 may include a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), 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 disk At least one type of storage medium may be included. In addition, the mobile terminal 100 may operate a web storage that performs a storage function of the memory unit 160 on the Internet.

The controller 180 typically controls the overall operation of the mobile terminal. For example, perform related control and processing for voice calls, data communications, video calls, and the like. In addition, the control unit 180 may include a multimedia module 181 for multimedia playback. 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.

2 is a front perspective view of a mobile terminal according to the present invention; The disclosed mobile terminal 200 has a terminal body 201 constituting an appearance. However, the present invention is not limited thereto and may be applied to various structures such as a slide type, a folder type, a swing type, a swivel type, and two or more bodies are coupled to be relatively movable. Further, the mobile terminal described herein may be any electronic device having a receptacle 230 as described below, for example, a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA. (Personal Digital Assistants), Portable Multimedia Player (PMP) and the like.

The terminal body 201 includes a case (which may be called a casing, a housing, a cover, etc.). The case may be divided into a front case 202 and a rear case 203. Various electronic components are embedded in the space formed between the front case 202 and the rear case 203. At least one intermediate case may be further disposed between the front case 202 and the rear case 203. 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).

A display unit 210, a first sound output unit 211, a first image input unit 216, and the like may be disposed in front of the terminal body 201.

The display unit 210 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 210 may include a touch sensing means to be input by a touch method. Hereinafter, the display unit 210 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 can be seen, and may include a structure for increasing the visibility of the touch screen in a bright place. According to FIG. 2, the touch screen occupies most of the front surface of the front case 202.

The first sound output unit 211 may be implemented in the form of a receiver for transmitting a call sound to a user's ear or a loud speaker for outputting various alarm sounds or reproduction sounds of multimedia.

Side keys 214, sound input units 213, and the like are disposed on side surfaces of the terminal body 201.

The side key 214 may be collectively referred to as an operation unit, and may receive a command for controlling the operation of the mobile terminal 200. The side key 214 may be employed in any manner as long as the user is tactile in the tactile manner. The content input by the side key 214 may be variously set. For example, the side keys 214 may be used to control commands of the image input units 216 and 218, adjust the volume of sound output from the audio output units 211 and 217, or switch the display unit 210 to the touch recognition mode. Can be input.

The sound input unit 213 may be implemented in the form of a microphone, for example, to receive a user's voice, other sounds, and the like.

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

Referring to FIG. 2, a second image input unit 218 may be additionally mounted on the rear surface of the terminal body 201. The second image input unit 218 may be a camera having a photographing direction substantially opposite to the first image input unit 216 disposed on the front surface, and having different pixels from the first image input unit 216.

For example, the first image input unit 216 has low pixels so that it is easy to photograph a user's face and transmit it to a counterpart in a video call, and the second image input unit 218 immediately photographs a general subject. It is preferable to have a high pixel because it is not transmitted in many cases. These image input units 216 and 218 may be installed in the terminal body in a rotatable or pop-up manner.

The flash 219 and the mirror 220 are further disposed adjacent to the second image input unit 218. The flash 219 illuminates the subject when the subject is photographed by the camera 218. The mirror 220 allows the user to see his / her own face or the like when the user wants to photograph himself (self-photographing) using the second image input unit 218.

The second sound output unit 217 may be further disposed on the rear surface of the terminal body 201. The second sound output unit 217 may implement a stereo function together with the first sound output unit 211 disposed on the front of the terminal body, and may be used to implement a speakerphone mode during a call.

The rear side of the terminal body 201 is equipped with a power supply unit 222 for supplying power to the mobile terminal 200. The power supply unit 222 may be built in the terminal body or may be directly detachable from the outside of the terminal body.

A receptacle 230 for inserting the plug 10 of the external device or the charging device is disposed on the side of the terminal body 201. The receptacle 230 is a path through which the mobile terminal 200 according to the present invention can exchange data with a charging device or an external device, and is responsible for some of the functions of the interface unit 170 described above. Receptacle 230 may be blocked by the cover so as not to be exposed to the outside when not in use, open the cover when in use to insert the plug 10 of the charging device or external device to perform the necessary work.

Figure 4 is a partial cross-sectional perspective view showing the structure of the plug and receptacle according to the present invention.

Referring to FIG. 4, the receptacle 230 includes a metal edge portion 231 having an insertion hole formed therein for inserting the plug 10. The metal frame 231 may be formed of a material having sufficient rigidity, for example, stainless steel, to maintain the original shape without changing the angle in any direction while the plug 10 is inserted. . The metal frame 231 may be fixed by a part inserted into the circuit board 208 or fixed by welding, and electrically connected to the ground of the circuit board 208. An insulation pad 232 having a receptacle pin set 233 composed of a plurality of pins is disposed inside the insertion hole. The insulating pad 232 may be formed of an insulating material having sufficient rigidity to support the receptacle tweezers 233, for example, a material such as plastic or ceramic. The receptacle tweezers 233 may be formed in the form of copper, gold, silver, or an alloy to reduce resistance and realize stable connection.

The distal end of the metal frame 231 is flared in order to facilitate the entry of the plug 10, and one side of the metal frame 231 is partially cut and bent to prevent incorrect insertion of the plug 10. The prevention protrusion 235 is formed.

The plug 10 includes a metal skirt 11 having a form that can be inserted into an insertion hole of the metal rim 231. The skirt portion 11 has an insertion hole formed to insert the insulating pad 232 of the plug 10, and a pad 12 corresponding to the insulating pad 232 is provided at one side of the insertion hole.

The pad 12 has a plug tweezer 13 formed of a plurality of pins, and the insulating pad 232 of the receptacle 230 also includes a plug tweezer 13 for contacting the receptacle tweezers 233. Doing. The plug tweezers 13 may be formed in an elastic spring shape for accurate connection. When the plug 10 is inserted, the pad 12 of the plug 10 of the plug 10 and the insulating pad 232 of the receptacle 230 overlap. In this process, each pin of the plug pinset 13 and each pin of the receptacle pinset 233 corresponding thereto are in contact with each other.

Receiving grooves 16 (see FIG. 5) are formed on the outer surface of the pad 12 of the plug 10 so that the misinsertion prevention protrusion 235 of the receptacle 230 can be accommodated when properly inserted into the receptacle 230. It is.

According to FIG. 4, the plug pinset 13 includes a horizontal extension portion 13a formed on the main surface of the pad 12 and a vertical extension portion 13b formed on the edge surface of the pad 12. Of these, the horizontal extension portion 13a is in contact with the pinset 233 of the receptacle 230 in the process of inserting the plug 10, the vertical extension portion 13b is the receptacle 230 when the plug 10 is fully inserted The double contact with the tweezers 233) makes a more stable connection.

Unlike the horizontal extension portion 13a of the plug tweezers 13, the starting portion of the receptacle tweezers 233 is spaced (retracted) from the metal rim 231. That is, even when the plug 10 is inserted into the receptacle 230, the plug tweezers 13 of the plug 10 and the tweezers 233 of the receptacle 230 do not directly contact each other.

5 is a schematic plan view of a plug and a receptacle associated with the present invention.

According to FIG. 5, the tip of the insulating pad 232 of the plug 10 is retracted with a slight gap from the tip of the metal rim 231, and the receptacle tweezers 233 is again on the insulating pad 232. Start at a distanced distance. As a result, the plug tweezers 13 starts after a considerable distance D from the tip of the metal rim 231. The action of this configuration and placement of the receptacle tweezers 233 is described in detail with reference to FIGS. 7A-7C.

6A and 6B are cross-sectional views of pads constituting a plug and a receptacle according to the present invention, where FIG. 6A shows a pre-insertion state of the plug and FIG. 6B shows a state where the plug is fully inserted.

As shown in these figures, each pin constituting the pinset 233 formed on the insulating pad 232 also includes a horizontal extension portion 233a and a vertical extension portion 233b like the terminals of the receptacle 230. have. Since the horizontal extension part 233a starts at the point where the metal edge part 231 is retracted by a predetermined distance D, even if the pad 12 of the plug 10 enters, the horizontal extension of the plug tweezers 13 is immediately performed. The portion 13a and the horizontal extension portion 233a of the receptacle tweezers 233 are not in contact with each other.

The vertical extension portion 233b may contact the vertical extension portion 13b of the tweezers 13 of the plug 10 when the plug 10 is fully inserted into the receptacle 230 as shown in FIG. 6B. Extend in the vertical direction. The vertical extension portion 13b may be formed in a shape such as an elastic spring to maintain its shape from repeated connecting and disconnecting operations. Furthermore, the vertical extension portion 13b may have a structure not supported by any other member as shown in FIG. 6A, or alternatively, may have a structure supported by another member. In addition, the vertical extension portion 13b may be in a form extending obliquely from the insulating pad 232.

7A to 7C are operation state diagrams illustrating a process in which a terminal set of a plug and a pinset of a receptacle are connected when the plug is inserted in a twisted state according to the present invention.

As shown in FIG. 7A, the plug 10 is frequently inserted at an angled and twisted state rather than being inserted in the correct direction with respect to the receptacle 230. In this case, some of the pins of the plug tweezers 13 first overlap the insulating pad 232 of the receptacle 230. Even so, the pinset 233 on the insulating pad 232 starts at a distance D or more from the distal end of the metal rim 231, so the pin of the plug 10 entering first is receptacle 230. It does not reach the pin of tweezers 233. If, as in the conventional case, the receptacle pinset starts immediately near the tip of the metal rim 231, some pins of the plug pinset 13 are receptacle in the process of inserting the plug 10 in an oblique form. This may result in a short between some pins of the tweezers 233. In this example, 'twisting' at the beginning of insertion of the plug 10 effectively prevents short circuits between such pins.

When the plug 10 is inserted halfway with respect to the receptacle 230, the twisted plug 10 is also changed in the correct direction by the guide action of the metal frame 231 (FIG. 7B). At this time, the horizontal extension part 13a of the plug tweezers 13 and the horizontal extension part 233a of the receptacle tweezers 233 start contacting.

Thus, a phenomenon such as short circuit between terminals between the plug tweezers 13 and the receptacle tweezers 233 is essentially prevented. More specifically, the retraction distance D of the horizontal extension portion 233a of the receptacle tweezers 233 may be 30 to 60% of the insertion length S of the plug 10.

As shown in FIG. 7C, when the plug 10 is fully inserted with respect to the receptacle 230, the vertical extension 13b in addition to the horizontal extension 13a of the plug tweezers 13 is vertically extended to the receptacle tweezers 233. In contact with the portion 233b. Therefore, the reduction in the contact area which may be caused by the shortened length of the horizontal extension portion 233a of the tweezers 233 can be effectively compensated by means such as the vertical extension portion 233b.

8A and 8B are cross-sectional views illustrating pads of plugs and insulating pads of receptacles as a second embodiment of the present invention, FIG. 9 is a cross-sectional view taken along line AA of FIG. 8A, and FIG. 10 is a line BB of FIG. 8A. In accordance with the cross-sectional view.

As shown in these figures, in this embodiment, the insulating pad 232 has a pin set 233 having the horizontal extension portion 233a and the vertical extension portion 233b described above, and the horizontal extension portion 233a. ), The number of pin guide grooves 234 corresponding to the number of pins constituting the receptacle pinset 233 is provided in front.

These pin guide grooves 234 serve to correctly guide each terminal of the plug pin set 13 when the plug 10 is inserted. However, even in this case, the pin guide groove 234 also has a metal rim portion to prevent the pin of the plug pin set 13 from entering the unsupported pin guide groove 234 when the plug 10 is twisted. 231 may be configured to start in a retracted position by a distance from the distal end.

11 is a plan view showing a plug and a receptacle as a third embodiment related to the present invention. In this example, the insulating pad 232 of the receptacle 230 is formed to start at a retracted position at a distance H from the tip of the metal rim 231, unlike the first embodiment. Such distance may also be set to about 30 to 60% of the distance (S) required for the plug to be fully inserted.

12 is a perspective view showing a plug and a receptacle as a fourth embodiment related to the present invention. In the metal rim 231 of the receptacle 230 shown in FIG. 12, a pad guide groove 236 having a shape corresponding to the groove 16 is constrained to constrain the groove 16 formed in the pad 12 of the plug 10. ) Is formed.

According to FIG. 12, the pad guide groove 236 extends at least a length corresponding to the insertion length S of the plug 10, and is formed only at the tip of the metal rim 231. There is a difference from the erroneous insertion prevention projections (235).

This pad guide groove 236 is prevented from being inserted twisted from the step of starting the insertion of the plug 10 and is correctly connected. In this case, the position of the insulating pad 232 or the position of the tweezers 233 may start from the tip of the metal frame 231 as in the conventional case.

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.

1 is a block diagram of a mobile terminal according to one embodiment of the present invention

2 is a front perspective view of a mobile terminal related to the present invention;

3 is a rear perspective view of the mobile terminal shown in FIG.

Figure 4 is a partial cross-sectional perspective view showing the structure of the plug and receptacle associated with the present invention

5 is a schematic plan view of a plug and a receptacle associated with the present invention;

6A and 6B are cross-sectional views of pads constituting a plug and a receptacle according to the present invention, where FIG. 6A shows a pre-insertion state of the plug and FIG. 6B shows a state where the plug is fully inserted.

7A to 7C are operational state diagrams illustrating a process in which a terminal set of a plug and a pinset of a receptacle are connected when the plug is inserted in a twisted state in accordance with the present invention.

8A and 8B are cross-sectional views illustrating a pad of a plug and an insulating pad of a receptacle as a second embodiment related to the present invention.

9 is a cross-sectional view taken along the line A-A of FIG. 8A

10 is a cross-sectional view taken along the line B-B of FIG. 8A

11 is a plan view showing a plug and a receptacle as a third embodiment related to the present invention.

12 is a perspective view showing a plug and a receptacle as a fourth embodiment related to the present invention.

Claims (7)

Receptacles formed so that the plug can be inserted into one side of the terminal body, The receptacle, A metal frame formed with a receiving hole of the plug; An insulation pad fixed in the accommodation hole to overlap the pad provided in the plug when the plug is inserted; And It is disposed on the insulating pad, and comprises a receptacle pinset formed to be in contact with the plug pinset formed on the pad of the plug, each pin constituting the receptacle pinset, A horizontal extension part starting horizontally from the distal end of the metal edge part and extending horizontally along the surface of the insulating pad; And And a vertical extension part formed so as to contact an end portion of the pin constituting the plug pinset by extending in a vertical direction from an end portion of the horizontal extension part. The method of claim 1, Mobile terminal, characterized in that the front end portion of the metal rim portion is formed with a misinsertion prevention projection bent in the inner direction. The method of claim 1, The retracting distance (D) of the horizontal extension portion is a mobile terminal, characterized in that formed in 30 ~ 60% of the insertion length (S) of the plug. The method of claim 1, And a plurality of pin guide grooves for guiding each pin of the plug pin set from a distal end portion of the insulating pad to a portion where the horizontal extension portion starts. The method of claim 1, And the pin guide groove is formed to start at a retracted position at a predetermined distance from the tip of the insulating pad. The method of claim 1, Mobile terminal, characterized in that the front end portion of the insulating pad is retracted by a predetermined distance (H) from the front end portion of the metal frame portion. The method of claim 1, Mobile terminal, characterized in that the metal rim portion of the receptacle is protruded in a shape corresponding to the groove formed in the pad of the plug, the pad guide groove extending at least to the insertion length (S) of the plug.

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