KR101943355B1 - Mobile terminal - Google Patents

Abstract

The present invention relates to a battery charger comprising a base member provided on one surface of a terminal body having a battery and a base member provided on the base member and having a loop formed to generate an induced current with the wireless charging module, A mobile terminal including a plurality of induction coils electrically connected.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal capable of wireless charging.

A mobile terminal is a portable electronic device that is portable and has one or more functions of voice and video call function, information input / output function, and data storing function.

As the functions of the mobile terminal are diversified, the mobile terminal is implemented in the form of a multimedia device having complicated functions such as photographing and photographing of a moving picture, reproduction of a music or video file, and reception of a game and a broadcast. Various new attempts have been made in terms of hardware or software to implement the complex functions of multimedia devices.

In addition, mobile terminals are regarded as personal items for expressing their individuality, and various design forms are required. The design form also includes structural changes and improvements for the user to more conveniently use the mobile terminal. One of such structural changes and improvements can be considered for an antenna device implementing near field wireless communication in a mobile terminal.

Recently, an additional structure for simplifying the internal structure of the mobile terminal and improving the function has been developed.

A wireless charging method that does not require an adapter that connects the charging module and the mobile terminal to charge the battery of the mobile terminal is used. However, when the mobile terminal is installed at a preset position, the charging progresses and it is inconvenient to use, and it is difficult for one charging module to charge various types of mobile terminals.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a mobile terminal that is easy to charge wirelessly.

A mobile terminal according to an embodiment of the present invention for realizing the above-mentioned problems includes a base member and a plurality of induction coils. The base member is installed on one surface of a terminal body having a battery. The plurality of induction coils are formed on the base member in a loop to generate an induction current with the wireless charging module, and are electrically connected to each other to transmit the induction current to the battery.

According to one example related to the present invention, the plurality of induction coils are each formed by a conductor wire wound in the same direction.

According to an example of the present invention, the plurality of induction coils include a first induction coil and a second induction coil which are electrically connected to each other. The first and second induction coils include an external connection portion extending from an end of each outer circumference and an internal connection portion extending from an inner circumference of the induction coil. The outer connecting portion of the first induction coil is connected to the inner connecting portion of the second induction coil.

According to an example of the present invention, the plurality of induction coils are arranged in a loop structure to generate an induction current with the charging module.

According to one example of the present invention, the plurality of induction coils include at least three lead wires wound in the same direction. The leads are electrically connected to each other and form a loop structure with respect to a central portion of each center point, thereby generating an induction current with the charging module.

According to an example of the present invention, the mobile terminal includes a circuit board formed on the support member, the circuit board having a plurality of connection terminals, a plurality of connection terminals extending from the ends of the induction coils, As shown in FIG.

According to an example of the present invention, the plurality of induction coils include first and second induction coils adjacent to each other, and the connection portion includes an outer connection portion extending from the outer peripheral end portion of the first and second induction coils, And an outer connecting portion of the first induction coil and an inner connecting portion of the second induction coil are connected to one connecting terminal.

According to an example of the present invention, the mobile terminal includes a battery for supplying electric power to the terminal main body, and a pair of connection terminals formed on the support member, wherein a pair of connection terminals, to which only one connection portion of the plurality of connection terminals is connected, And a contact terminal to which the electric power is transmitted.

According to one example related to the present invention, the support member includes first and second shield members which are disposed with the induction coil therebetween, and which block the electric flow to the outside.

According to another aspect of the present invention, there is provided a portable terminal comprising: a battery disposed within a terminal body to provide electric power; and a battery cover installed on one side of the terminal body and configured to cover the battery. The first and second shield members are mounted on the battery cover.

According to the present invention having the above-described configuration, since the induction coil is included in each induction coil, the induction coil can be charged even if at least one induction coil of the plurality of induction coils is superimposed on the charging module. Do. Therefore, the user can easily charge using the wireless charging module.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention;
FIG. 2A is a perspective view of an example of a mobile terminal according to the present invention. FIG.
FIG. 2B is a rear perspective view of the mobile terminal shown in FIG. 2A. FIG.
FIG. 3 is a perspective view of the mobile terminal of FIG. 2a connected to a wireless charging module. FIG.
4A to 4C are perspective views of a cover provided with an induction coil according to embodiments of the present invention.

Hereinafter, a mobile terminal related 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 given to different embodiments in the same or similar configurations. As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

Hereinafter, a mobile terminal related 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 given to different embodiments in the same or similar configurations. As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), navigation and the like. However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply 190, and the like. The components shown in FIG. 1 are not essential, and a mobile terminal having more or fewer components may be implemented. Hereinafter, the components will be described in order.

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

The broadcast receiving module 111 receives broadcast signals 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 signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to 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, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only Broadcast-Handheld (ISDB-T), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

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 radio signals to 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 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 may be built in or externally attached to the mobile terminal 100. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short-range communication module 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 a short range communication technology.

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

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates 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 is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is for generating output related to the visual, auditory or tactile sense and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154 .

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, and a 3D display.

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display portion 151 of the terminal body.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another or may be disposed integrally with each other, or may be disposed on different surfaces.

(Hereinafter, referred to as a 'touch screen') in which a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') form a mutual layer structure, It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of 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 transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is surrounded by 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 a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

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

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as " proximity touch & The act of actually touching the pointer on the screen is called " contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

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

The audio 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 mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile 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 the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. 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. A typical example of the haptic effect generated by the haptic module 154 is vibration. The intensity and pattern of the vibration generated by the hit module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or suction force of the air through the injection port or the suction port, a touch on the skin surface, contact of an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

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. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable terminal 100.

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

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

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

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

When the mobile terminal 100 is connected to an external cradle, the interface unit 170 may be a path through which power from the cradle is supplied to the mobile terminal 100, or various commands A signal may be a path through which the signal is transmitted to the mobile terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

The various embodiments described herein may be embodied 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 may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of a processor, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, The embodiments described may be implemented by the control unit 180 itself.

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

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

FIG. 3 is a perspective view showing a state where the mobile terminal of FIG.

1, 2A, and 2B, the mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, and a swing type in which two or more bodies are relatively movably coupled. Further, the mobile terminal described herein may be any portable electronic device having a camera and flash, for example, a mobile phone, a smart phone, a notebook computer, a digital broadcast terminal, a Personal Digital Assistants ), A PMO (Portable Multimedia Player), and the like.

The terminal body includes a case (which may be referred to as a casing, a housing, a cover, and the like) that forms an appearance. The case may be divided into a front case (201) and a rear case (202) covering a face opposite to the front case. Various electronic components are embedded in the space formed between the front case 201 and the rear case 202. The cases may be formed by injection molding a synthetic resin, or may be formed to have a metal material such as stainless steel (STS) or titanium (Ti) or the like. In addition, a cover 203 detachably coupled to the rear case 202 is formed. The cover 203 is formed so as to cover the power supply part 222.

A side key 214, interface units 212 and 225, and an acoustic input unit 213 are disposed on the side surface of the front case 201.

The side key 214 may be collectively referred to as an operation unit and is capable of receiving 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 operating in a tactile manner with a tactile impression. The content input by the side key 214 can be variously set. For example, by the side key 214, commands such as control of the image input units 216 and 230, size adjustment of the sound output from the sound output unit 211, or switching to the touch recognition mode of the display unit 210 Input can be received.

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

The interface units 215 and 225 are paths for enabling the mobile terminal 200 related to the present invention to exchange data with an external device. For example, the interface units 215 and 225 may be wired or wireless, and may include a contact terminal for connecting to an earphone, a port for short-range communication (for example, an IrDA Port, a Bluetooth Port, A wireless LAN port, etc.), or power supply terminals for supplying power to the mobile terminal 200. The interface units 215 and 225 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) or a memory card for storing information.

The terminal body includes a display unit 210, a first sound output unit 211, a signal input unit 230, and a front camera unit 216.

The display unit 210 includes an LCD (Liquid Crystal Display) module, an OLED (Organic Light Emitting Diodes) module, and an e-paper for visually expressing information. The display unit 210 may include touch sensing means for inputting data by a touch method. Hereinafter, the display unit 210 including the touch sensing unit will be referred to as a 'touch screen'. If any one of the touches on the touch screen 210 is touched, the contents corresponding to the touched position are input. The content input by the touch method may be a character or a number, an instruction in various modes, or a menu item that can be designated. The touch sensing means is formed in a translucent manner so that the display portion can be seen, and a structure for enhancing the visibility of the touch screen in a bright place may be included. 2A, the touch screen 210 occupies most of the front surface of the front case 201. [

The first sound output unit 211 may be implemented as a receiver for delivering a call sound to a user's ear or a loud speaker for outputting various alarm sounds or multimedia playback sounds.

The front camera unit 216 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 can be displayed on the display unit 151. [

The image frame processed by the front camera 216 can be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ The front camera 216 may be provided in two or more depending on the use environment.

The signal input unit 230 is operated to receive a command for controlling the operation of the mobile terminal 200 and may include a plurality of input keys. The input keys may also be referred to as a manipulating portion and may be employed in any manner as long as the user has a tactile sense and operates in a tactile manner.

For example, a dome switch or touch screen capable of receiving a command or information by a push or touch operation of a user, a touch pad, or a wheel, a jog type or a joystick for rotating a key . The contents input by the signal input unit 230 can be variously set. For example, to enter start, end, scroll, and the like.

A power supply unit 222, a rear camera unit 221, and a second sound output unit 225 are disposed on the rear surface of the terminal body.

The power supply unit 222 supplies power to the mobile terminal 200. The power supply unit 222 may be built in the main body of the terminal, or may be detachable from the outside of the main body of the terminal.

A flash 223 is disposed adjacent to the rear camera unit 221. The flash 223 may be disposed adjacent to the rear camera unit 221. The flash 223 illuminates the subject toward the subject when the subject is photographed by the rear camera 230.

A mirror 224 may be disposed adjacent the flash 224. The mirror allows the user to illuminate the user's own face or the like in the case where the user intends to photograph (self-photograph) himself / herself by using the rear camera unit 221. [

The second sound output unit 225 may implement a stereo function together with the first sound output unit 211 disposed on the front surface of the terminal body and may be used to implement a speakerphone mode during a call.

The rear camera unit 221 may have a photographing direction substantially opposite to that of the front camera unit 216 disposed on the front side and may be a camera having different pixels from the front camera unit 216. [

For example, the front camera unit 216 has low pixels so that it is easy to capture a face of a user in the case of a video call or the like and transmit the face to the other party. The rear camera unit 221 photographs a general subject and immediately transmits It is preferable to have a high pixel. The front and rear camera units 221 may be installed on the terminal body so as to be able to rotate or pop-up.

Referring to FIGS. 2B and 3, the main body of the terminal is mounted on the wireless charging module 400 to receive charging power in a wireless manner. More specifically, the body of the mobile terminal 200 has a battery 222 and is configured to be seated in the wireless charging module 400. The battery 222 is supplied with charging power using an induction current.

The wireless charging module 400 includes an AC generator (not shown) for generating an AC and a primary coil 401. When the AC flows in the primary coil 401, the electromagnetic field around the primary coil 401 changes.

A current generator (not shown) is formed in the terminal body. The current generating unit is configured to generate an induced current by using a current change of the charging device 300. The induced current is converted into a direct current and supplied to the battery 222.

More specifically, the current generating portion includes a plurality of induction coils 310. [ The induction coil 310 generates an induction current using a change in electromagnetic field caused by the primary coil 401. Each of the plurality of induction coils 310 is formed in a loop shape.

Hereinafter, a specific structure of the charging device 300 of the mobile terminal will be described.

4A to 4C are perspective views of a cover provided with an induction coil according to embodiments of the present invention.

Referring to FIG. 4A, the charging device 300 may be formed on the inner surface of the cover 203 facing the terminal body. The charging device 300 includes a base member 310 and the plurality of induction coils 320.

The base member 310 is mounted on the cover 203. And may be formed of a shield plate made of metal. The shield plate blocks the movement of the magnetic field formed by the induction coil 320 and prevents the radiation from being radiated to the outside, thereby blocking the influence of the magnetic field to the outside of the cover 203. Accordingly, power transmitted to the battery 222 can be improved.

The plurality of induction coils 320 are formed on the base member 310. The induction coil 320 includes at least two induction coils 320. For example, as shown in FIG. 4A, the induction coil 320 may include first to ninth induction coils 321, 322, 323, 324, 325, 326, 327, 328 and 329. The induction coil 320 may be arranged so as to be arranged in three rows and three columns. However, the number of the induction coils 320 is not limited thereto.

Each of the first to ninth induction coils 321, 322, 323, 324, 325, 326, 327, 328, 329 has a loop structure, and the leads are formed in a spiral shape and wound in the same direction. Accordingly, the first to ninth induction coils 321, 322, 323, 324, 325, 326, 327, 328, and 329 may each be formed with an induction current.

For example, the first induction coil 321 overlaps with the primary coil 401 to generate an induction current. In this case, the second to ninth induction coils 322, 323, 324, 325, 326, 327, 328, 329 electrically connect the first induction coil 321 and the contact terminal 330, As shown in FIG.

The first to nineteenth induction coils 321, 322, 323, 324, 325, 326, 327, 328, 329 are all wound in the same direction. Therefore, when at least two of the first to ninth induction coils 321, 322, 323, 324, 325, 326, 327, 328, 329 are formed with induction currents, Are formed in the same direction. Therefore, it is possible to prevent induced currents in opposite directions from being formed and disappearing from each other. The induction coil 320 may be formed in about 12 turns, but is not limited thereto. Therefore, all of the induced currents flowing in the same direction are generated. That is, if at least two coils generate an inductive current, they can not cancel each other and deliver a greater power to the battery 222.

Each induction coil 320 includes an outer connection extending from the outer periphery and an inner connection extending from the inner periphery. For example, the first and second induction coils 331 and 332 are electrically connected. That is, the external connection portion of the first induction coil 331 is connected to the internal connection portion of the second induction coil 332. Accordingly, the plurality of induction coils are wound in the same direction.

As shown in the figure, the first to ninth induction coils 321, 322, 323, 324, 325, 326, 327, 328, 329 are sequentially connected. The inner connecting portion of the first induction coil 321 and the outer connecting portion of the ninth induction coil 329 are connected to the contact terminal 330. The contact terminal is connected to the terminal main body and supplies power to the battery 222.

An additional shield plate may be mounted on the induction coil 320. As described above, the metallic shield plate blocks the movement of the magnetic field formed by the induction coil 320, thereby preventing the influence of the magnetic field on the electronic parts built in the terminal main body. Thus, a magnetic field that can be emitted can be blocked together with the base member to provide a greater amount of power to the battery 222.

Accordingly, since the plurality of induction coils can generate induction currents, the mobile terminal is not accurately superimposed on the wireless recharging device 400, and wireless charging with induction current is performed even when superimposed on some coils of the induction coils . It is possible to charge various types of mobile terminals with one wireless charging device. In addition, the restriction on the mounting position of the mobile terminal in the charging device is reduced, so that the charging of the mobile terminal by the user is easier.

Referring to FIG. 4B, the charging apparatus 300 includes a base member 310 and an induction coil 320 formed on the base member 310. The charging device 300 according to the present embodiment may include components similar to those of the charging device of FIG. 4A except for the arrangement of the induction coil 320. The description of FIG. do.

The induction coil 320 includes the first to eighth induction coils 321, 322, 323, 324, 325, 326, 327, and 328 arranged so that each center point is a circle. That is, the first to eighth induction coils 321, 322, 323, 324, 325, 326, 327 and 328 are formed to form a single center point C and form a loop structure 320 '.

Each of the first to eighth induction coils 321, 322, 323, 324, 325, 326, 327 and 328 overlaps the first coil 401 to generate an induced current.

Also, if the loop structure 320 'overlaps with the first coil 401, an induced current may be generated. The outgoing signal may be operated by other coils or other signals, for example an NFC (Near Field Communication) antenna.

4C, the charging apparatus 300 includes a base member 310, a plurality of induction coils 320 formed on the base member 310, and a circuit board 340 connecting the plurality of induction coils. . The charging device 300 according to the present embodiment may include components similar to those of the charging device of FIG. 4B except for the connection relationship of the induction coil 320 and the circuit board 340, Is replaced with the description of FIG. 4B.

The induction coil 320 includes first to eighth induction coils 321, 322, 323, 324, 325, 326, 327, 328. The circuit board 340 is disposed at the center of the first to eighth induction coils 321, 322, 323, 324, 325, 326, 327, and 328. The circuit board may be formed of a flexible printed circuit board.

On the circuit board 340, eight connection terminals 331 and a connection terminal 330 connected to the battery 222 for supplying power are formed. Each of the induction coils includes the inner and outer connection portions.

For example, the external connection portion of the first induction coil 321 and the internal connection portion of the eighth induction coil 328 share one connection terminal 331. The first to eighth induction coils 321, 322, 323, 324, 325, 326, 327 and 328 are sequentially connected to form one loop structure 320 ', similarly to the description of FIG. 4B. Thus, if the loop structure 320 'overlaps with the first coil 401, an inductive current can be generated. The outgoing signal may be operated by other coils or other signals, for example an NFC (Near Field Communication) antenna.

The one connection terminal 331 is electrically connected to the contact terminal 330 to transmit the induced current to the battery 222.

By connecting the induction coil 320 to the connection terminal 331, the structure can be simplified. In addition, when the loop structure 320 'performs communication, an amplifying device (not shown) may be disposed on the circuit board 340.

According to the embodiment of the present invention, even if the terminal main body does not exactly overlap with the wireless charging device, it can be charged by the plurality of induction coils formed in the terminal main body so as to be mounted on the wireless charging device. Therefore, charging of the mobile terminal by the user is easier.

The mobile terminal described above can be applied to not only the configuration and method of the embodiments described above but also all or some of the embodiments may be selectively combined so that various modifications may be made to the embodiments It is possible.

Claims (10)

A base member provided on one surface of a terminal body having a battery;
And a plurality of induction coils formed on the base member in a loop to generate induction currents with the wireless charging module and electrically connected to each other to transmit the induction current to the battery,
Wherein the plurality of induction coils include a first induction coil and a second induction coil which are electrically connected,
Wherein the first and second induction coils include an outer connection portion extending from an end of each outer periphery and an inner connection portion extending from an inner periphery of the induction coil,
Wherein the external connection portion of the first induction coil is connected to the internal connection portion of the second induction coil, the plurality of induction coils are formed of a conductor wire wound in the same direction, and the plurality of induction coils To prevent induction current formation in the direction opposite to that of the battery, whereby a greater power is delivered to the battery. delete delete 2. The apparatus of claim 1, wherein the induction coils form a loop structure to generate an induction current with the wireless charging module,
Wherein the plurality of induction coils include at least three leads wound in the same direction,
The leads are electrically connected to each other and generate an induction current with the wireless charging module based on a central portion of each center point,
Wherein when the loop structure overlaps with the primary coil in the wireless charging module to generate the induced current, the loop structure simultaneously operates as an NFC antenna. delete The mobile terminal of claim 4, wherein the loop structure is formed to receive a magnetic flux change around the terminal body. The method according to claim 1,
A circuit board formed on the base member and having a plurality of connection terminals; And
And a plurality of connection portions extending from an end of the induction coil and connecting the connection terminal and the induction coil. 8. The method of claim 7,
Wherein the plurality of induction coils include first and second induction coils adjacent to each other,
The connecting portion includes an outer connecting portion extending from the outer peripheral end of the first and second induction coils and an inner connecting portion extending from the inner peripheral end,
Wherein the external connection portion of the first induction coil and the internal connection portion of the second induction coil are connected to one connection terminal. 9. The method of claim 8,
A battery for supplying power to the terminal main body; And
And a contact terminal formed on the base member and electrically connected to a pair of connection terminals connected to only one of the plurality of connection terminals and transmitting the electric power. The method according to claim 1,
A battery disposed inside the terminal body to provide electric power;
A battery cover installed on one surface of the terminal body and covering the battery; And
Wherein the base member includes first and second shield members which are disposed with the induction coil interposed therebetween and which block electric flow to the outside,
Wherein the first and second shield members are mounted on the battery cover.

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