KR20150062350A - Mobile terminal - Google Patents

Abstract

The present invention relates to a mobile terminal which includes a body which mounts a first battery on the rear side thereof, a connection part which is formed on the rear side of a rear cover which covers the rear side of the body and includes a second battery inside and is electrically connected to the second battery, and a control unit which controls power use by scheduling the use sequence of the first battery and the second battery if the connection part is in contact with the second battery. The mobile terminal mounts another battery on the rear cover. Thereby, the use time of the mobile terminal is increased by simultaneously or selectively using two batteries. The mobile terminal is efficiently controlled.

Description

[0001] MOBILE TERMINAL [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a mobile terminal in which a plurality of batteries are simultaneously mounted to increase a usage time.

The terminal can move And may be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

As the function of such a terminal has diversified, the consumption of the battery has become faster and the user has to carry the charger or carry the additional battery.

The present invention relates to a mobile terminal, which is proposed to satisfy the above-mentioned necessity, and which can increase the use time of a mobile terminal by additionally mounting a battery.

A main body on which a first battery is mounted on a rear surface; A connection part formed on a rear surface of the rear cover body covering the back surface of the main body and including a second battery inside and electrically connected to the second battery; And a controller for controlling power usage by scheduling the order of use of the first battery and the second battery when the connection unit and the second battery are in contact with each other.

The connection unit connects the second battery and the first battery, and the controller recognizes the capacity of the first battery and the capacity of the second battery as a combined battery to control power usage.

Wherein the control unit controls the display unit to increase the size of the battery icon when the second battery is connected to the connection unit, wherein the display unit includes a battery icon located on a front surface of the main body and displaying a remaining amount of the battery, can do.

The controller may use the first battery and control the power consumption to use the second battery if the capacity of the first battery falls below the minimum capacity.

The controller may charge the first battery with the power of the second battery so that the first battery is maintained at the optimum capacity or more.

The control unit may control the power usage so that the second battery uses only the designated function.

The control unit may restrict the use of the designation function when the capacity of the second battery drops below a minimum capacity.

Wherein the control unit controls the display unit to display two battery icons when the second battery is connected to the connection unit, wherein the display unit includes a battery icon located on a front surface of the main body and displaying a remaining amount of the battery, can do.

The controller may distinguish between a battery icon corresponding to a battery in use and a battery icon corresponding to a battery not in use, among the first battery or the second battery.

And an interface for receiving power from an external power source, and when power is applied through the interface, power applied to the main body from the second battery can be cut off.

The interface may further include an interface for receiving power from an external power source, and the connection unit may further include a charging terminal for charging the second battery when external power is input through the interface.

As described above, the mobile terminal can increase the use time of the mobile terminal by using two batteries simultaneously or selectively by mounting another battery on the rear cover, and can more efficiently control the mobile terminal.

It is possible to increase the capacity of the battery by inserting the same type of battery as that of the first battery into the rear cover so that it is not necessary to separately purchase and use the portable battery and it is possible to solve the inconvenience of carrying the additional battery separately.

The effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the following description will be.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2 is a front perspective view of a mobile terminal according to an embodiment of the present invention.
3 is a rear perspective view of a mobile terminal according to an embodiment of the present invention.
4 is a perspective view illustrating a back cover of a mobile terminal according to an embodiment of the present invention.
5A and 5B are structural diagrams illustrating a connection relationship between the first battery of the mobile terminal body and the second battery of the rear cover of the mobile terminal according to an embodiment of the present invention.
6 and 7 are views showing a battery icon and a notification window displayed on the display unit when two batteries are used at the same time.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

Hereinafter, a mobile terminal according to an exemplary embodiment of the present invention will be described in detail with reference to the drawings. The same or corresponding components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof are omitted.

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), and navigation.

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.

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 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. Two or more broadcast receiving modules may be provided to the mobile terminal 100 for simultaneous broadcast reception or broadcast channel switching for at least two broadcast channels.

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 means 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, 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 (Mobile Broadcasting Business Management System), ISDB-T (Integrated Services Digital Broadcasting (ISDB-T)), Digital Multimedia Broadcasting (MBMS) Digital Broadcast-Terrestrial) or 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 may be coupled to a base station, an external terminal, or a server on a mobile communication network, such as, but not limited to, Global Transmission for Mobile communications (GSM), Code Division Multiple Access (CDMA), Wideband CDMA And wireless signals. 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. Wireless Internet technologies include WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), GSM, CDMA, WCDMA, LTE Evolution (but not limited to) may be used.

The wireless Internet module 113, which performs wireless Internet access through the mobile communication network, is connected to the mobile communication module 110 through the mobile communication network, for example, from the viewpoint that the wireless Internet access by Wibro, HSDPA, GSM, CDMA, WCDMA, LTE, (112).

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. According to the current technology, the GPS module 115 calculates distance information and accurate time information from three or more satellites, and then applies trigonometry to the calculated information to obtain a three-dimensional string of latitude, longitude, The location information can be accurately calculated. 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 can calculate speed information by continuously calculating the current position in real time.

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 button 136 located on the front, rear, or side of the mobile terminal 100, and a touch sensor (static / static) 137. Although not shown, ), A dome switch, 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 proximity sensor will be described later).

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 may be referred to as a transparent display, and a typical example of the transparent display is TOLED (transparent OLED) or 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 unit 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.

In the case where the display unit 151 and the touch sensor 137 have a mutual layer structure or are integrally formed (hereinafter referred to as a 'touch screen'), the display unit 151 may be used as an input device . The touch sensor 137 may be stacked on the display unit 151 to form a layer structure when the touch sensor 137 has a form of a touch film, a touch sheet, a touch pad, or the like. And may be integrally formed.

The touch sensor 137 may be configured to convert a change in a pressure applied to a specific part of the display part 151 or a capacitance generated in a specific part of the display part 151 into an electrical input signal. The touch sensor 137 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 137, the corresponding signal (s) is sent to the touch controller (not shown). 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.

The proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is enclosed 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 contacting the pointer on the touch screen may be referred to as "contact touch. &Quot; The location where the pointer is proximately touched on the touch screen may refer to a position where the pointer corresponds vertically 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. In this case, the display unit 151 and the sound output module 152 may be a type of the alarm unit 153. The display unit 151 and the sound output module 152 may be connected to the display unit 151 or the sound output module 152, .

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 haptic module 154 are controllable. 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. At least two haptic modules 154 may be provided according to the configuration of the mobile terminal 100.

The memory unit 160 may store a program for processing and controlling the control unit 180 and temporarily store the input / output data (e.g., telephone directory, message, audio, For example. The memory unit 160 may store the frequency of use of each of the data (for example, each telephone number, each message, and frequency of use for each multimedia).

In addition, the memory unit 160 may store data on vibration and sound of various patterns output when the 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 may be a path through which power from the cradle is supplied to the mobile terminal 100, or various command signals input by the user to the cradle may be transmitted It can be a passage to be transmitted to the 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 power supply unit 190 may include, for example, a battery, a connection port, a power supply control unit, and a charge monitoring unit.

The battery may be an internal battery configured to be chargeable, and may be detachably coupled to the terminal body for charging or the like. The connection port may be configured as an example of an interface 170 through which an external charger for supplying power for charging the battery is electrically connected.

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. [

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

The disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

The body of the mobile terminal 100 includes a case 101, 102 which forms an appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102.

In some cases, electronic components may be mounted on the surface of the rear case 102 as well. Electronic components mounted on the surface of the rear case 102 include a battery, a USIM card, a memory card, and the like which are detachable by the user. At this time, the rear case 102 may further include a rear cover 103 for covering the surface thereof. When the rear cover 103 is removed, the surface of the rear case 102 is exposed.

As shown in FIG. 3, when the rear cover 103 is coupled, only a side surface of the rear case 102 may be exposed. When the size of the rear cover 103 is reduced, Some may also be exposed. When the rear cover 103 covers the entire rear surface of the rear case 102, an opening 103 '(see FIG. 4) for exposing the camera 121' or the sound output module 152 ' .

The cases 101, 102, and 103 may be formed by injection molding synthetic resin or may be formed of a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the sound output module 152, the camera 121, the user input units 130/131 and 132, the microphone 122, the interface 170, and the like may be disposed in the terminal cases 101 and 102.

The display unit 151 occupies most of the main surface of the front case 101. A sound output module 152 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 132 and the interface 170 may be disposed on the side surfaces of the front case 101 and the rear case 102. [

The user input unit 130 is operated to receive a command for controlling the operation of the mobile terminal 100 and may include a plurality of operation units 131, 132, and 133. The operation units 131, 132, and 133 may be collectively referred to as a manipulating portion.

The contents inputted by the first or second operation unit 131 or 132 may be variously set. For example, the first operation unit 131 receives a command such as start, end, scroll, and the like, and the second operation unit 132 inputs a command such as the adjustment of the sound output from the sound output module 152 And the third operation unit 133 can receive commands such as activation / deactivation of the touch recognition mode of the display unit 151 and the like.

The operation units 131, 132 and 133 may have a button system recognized when a user applies pressure and a touch sensor 137 may be provided to the operation units 131, 132 and 133 in addition to the display unit 151 So that the user's command can be received only by the user's touch.

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

Referring to FIG. 3, a camera 121 'may be further mounted on the rear surface of the terminal body, that is, the rear case 102. The camera 121 'may have a photographing direction substantially opposite to the camera 121 (see FIG. 2), and may be a camera having the same or different pixels as the camera 121.

For example, the camera 121 may have a low pixel so that the face of the user can be photographed and transmitted to the other party in case of a video call or the like, and the camera 121 ' It is preferable to have a large number of pixels. The cameras 121 and 121 'may be installed in the terminal body such that they can be rotated or pop-up.

A flash 123 and a mirror 124 may be additionally disposed adjacent to the camera 121 '. The flash 123 illuminates the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to illuminate the user's own face or the like when the user intends to shoot himself / herself (self-photographing) using the camera 121 '.

An acoustic output module 152 'may be additionally disposed on the rear side of the terminal body. The sound output module 152 'on the rear side of the body may implement the stereo function together with the sound output module 152 (see FIG. 2) on the front side of the body, and may be used for the implementation of the speakerphone mode in a call.

In addition to the antenna for talking and the like, a broadcast signal reception antenna 116 may be additionally disposed on the side of the terminal body. The antenna 116, which forms part of the broadcast receiving module 111 (see FIG. 1), can be installed to be able to be drawn out from the terminal body.

FIG. 4 is a rear perspective view illustrating the surface of the rear case 103 separated from the rear cover 103 of the mobile terminal according to the embodiment of the present invention. 4, the front case 101, the rear case 102, the rear cover 103 (or the battery cover) 103, the camera 121 ', the interface 170, the microphone 122, A module 152 ', a battery 191, a battery mounting portion 104, a USIM card mounting portion 166, and a memory card mounting portion 167 are shown.

The rear case 102 may have a space on which external components such as the battery loading unit 104, the USIM card loading unit 166, and the memory card loading unit 167 can be mounted. In general, an external component mounted on the surface of the rear case 102 is used to extend the functions of the mobile terminal 100 in order to satisfy diversified functions of the mobile terminal 100 to be.

In order to compensate for the large power consumption due to various performance of the mobile terminal 100, the battery 191 can be configured as a replacement type as shown in FIG. In the case of the interchangeable type, a battery mounting portion 104 is formed on the surface of the rear case 102 so that a user can attach and detach the battery. The battery mounting portion 104 is provided with a connection terminal to be electrically connected to a component mounted inside the case.

4, the USIM card mounting portion 166 and the memory card mounting portion 167 may be formed on the side of the battery mounting portion 104 or on the bottom surface of the battery mounting portion 104, May be formed to be exposed to the outside. In this case, the size of the battery mounting portion 104 can be larger, and the size of the battery 191 can be increased.

4 shows a configuration in which the USIM card mounting portion 166 and the memory card mounting portion 167 are mounted on the rear surface of the rear case 102. In addition, It is possible.

The rear cover 103 covers the surface of the rear case 102 and fixes the battery 191, the USIM card, the memory card and the like mounted on the rear case 102 so as not to be detached, And protects the external components from foreign matter.

A waterproof structure (not shown) for sealing the rear case 102 and the rear cover 103 when the rear case 102 and the rear cover 103 are coupled to each other to prevent water from being injected into the external components.

In general, it is inconvenient to carry a spare battery 192 by putting it in a separate case, but it is inconvenient because the case for carrying the battery 192 is large and must be carried separately. If the battery is insufficient, 100 may be turned off and the operation may be disabled.

In order to solve the above problem, the back cover 103 of the present invention can mount the additional battery 192. [ A battery coupled to the cases 101 and 102 of the mobile terminal 100 is referred to as a first battery 191 and a battery coupled to the rear cover 103 is referred to as a second battery 192. [

The rear cover 103 may cover the first battery 191 coupled to the rear case of the mobile terminal 100 and may be configured to cover the first battery 191 of the mobile terminal 100 A protective case type in which the battery cover is separately mounted and then joined to the side of the mobile terminal 100 together with the battery cover is also included in the present invention.

And a second battery 192 mounting part for inserting the second battery 192 into the inside of the rear cover 103. The first battery 191 and the second battery 192 may have different sizes but may be inserted into the first battery mounting portion 104 using two identical batteries or selectively inserted into the second battery mounting portion 104 ' Can be inserted.

A connection terminal 194 may be exposed to the inside of the rear cover 103 to connect to the control unit of the mobile terminal 100 and a connection unit 193 corresponding to the connection terminal 194 may be connected to the inside of the back cover 103, And may be provided on the back surface.

The second battery 192 is connected to the main body of the mobile terminal 100 while the connection terminal 194 and the connection portion 193 are in contact with each other when the rear cover 103 is coupled to the case 101, At this time, the second battery can supply power (parallel connection) to the electronic component 200 of the main body of the mobile terminal 100 independently of the first battery, and can be connected to the first battery to be used as one large capacity battery (Serial connection). The mobile terminal 100 can be continuously used when power is supplied from at least one of the first battery 191 and the second battery 192. [

5A is a structural diagram showing one embodiment of the connection relationship between the first battery 191 and the second battery 192 when the connection portion 193 and the connection terminal 194 are connected.

A first battery 191 is mounted on the rear case 102 of the mobile terminal 100 and controlled by a control unit located at the front end of the case. The control unit for controlling the power supply unit 190 includes a main control unit (AP) 185, a power management integrated circuit (PMIC) 183, and a charge control unit (charge integrated circuit) have.

The main control unit 185 is a non-memory semiconductor used in the mobile terminal 100 and controls the overall operation of the mobile terminal 100, and functions as a central processing unit (CPU) of the computer. Decodes the instruction, executes arithmetic logic operations or data processing, and controls each component.

In the present invention, the main controller 185 detects whether power is supplied from the second battery 192 coupled to the rear cover 103, and can cut off the power input from the second battery 192. Also, the first battery 191 can be controlled to supply power to each component.

The power management control unit 183 can control the first battery 191 to use the power more efficiently and increase the driving time of the mobile terminal 100. [ The electronic apparatuses that need to be continuously supplied with power are unnecessary for the power management control unit 183, but are required for electronic apparatuses such as the mobile terminal 100 that determine whether or not to supply power according to circumstances.

The charging control unit controls the charging of the mobile terminal 100. When the power is supplied through the interface unit 170, the charging control unit transmits the power to the first battery 191 to charge the first battery 191 and prevents an overvoltage . In addition, the second battery 192 is connected to the second battery 192 to receive power from the first battery 191 or directly supply power to the first battery 191.

The power supply unit located on the rear cover 103 may include a second battery 192, a switch unit 188, a cover charge control unit 187, and a boost control unit 189. The second battery 192 may be a battery of the same size / capacity as the first battery 191 as described above. The second battery 192 may be inserted into the inner surface of the rear cover 103, (187).

The cover charge control unit is connected to the interface unit 170 of the mobile terminal 100 to receive power and transmit the power to the second battery 192. The switch unit is interposed between the second battery 192 and the cover charge control unit 187 to supply power to the second battery 192 or to receive power from the second battery 192, . The power supplied from the second battery 192 to the main body of the mobile terminal 100 can be supplied with a constant voltage through the boost circuit 189. [

When the power is applied through the interface unit 170, the power is supplied to the charge control unit 182 and the cover charge control unit 187 ((2)), the charge control unit 182 and the cover charge control unit 187, Can supply power to the first battery 191 and the second battery 192 to charge both the first battery 191 and the second battery 192 (steps 3 and 3 ').

Since the power is supplied through the interface unit 170, it is not necessary to use the power supplied from the second battery 192, and the main control unit 185 disables the power supplied from the second battery 192 And preferentially uses the power supplied through the interface unit 170.

When the power is not applied through the interface unit, the first battery 191 or the second battery 192 is used to supply power required for driving each component of the mobile terminal 100. The main controller 185 recognizes whether the power is supplied from the second battery 192 to the main mobile terminal 100. The main controller 185 recognizes whether the power is supplied from the second battery 192, The power supplied from the battery 192 can be used to charge the first battery 191 through the charge control unit 182 or to be used for each part (3).

When the second battery 192 is connected to the main body of the mobile terminal 100 through the connection unit 193, the control unit recognizes the capacities of the first battery 191 and the second battery 192 as a combined large capacity battery, Control usage.

5B is a structural diagram showing another embodiment of the connection relationship between the first battery 191 and the second battery 192 when the connection portion 193 and the connection terminal 194 of the present invention are connected. The mobile terminal of the present embodiment does not have a separate cover charge control section 187 and the charge control section 182 of the mobile terminal body can also control the second battery.

The switch 188 and the boost control unit 189 connected to the second battery 192 may be located inside the mobile terminal 100 without being located in the rear cover 103.

At this time, as shown in (a) of FIG. 6, the size of the battery icon 1511 indicating the remaining battery level increases, indicating that the capacity of the battery has increased. As described above, when the battery icon becomes large, it can be seen that the first battery 191 and the second battery 192 are recognized as one battery and used.

When the first battery 191 and the second battery 192 are used independently, the battery icons 1512a and 1512b are divided into two as shown in FIG. 6B. In order to distinguish the first battery 191 from the second battery 192, colors may be different or identification marks A and B may be provided. In the drawing, the battery icon 1512a represents the first battery 191, and the battery icon 1512b represents the second battery 192. [

The power is more efficiently supplied when the capacity of the first battery 191 is large. Therefore, the second battery 192 maintains the first battery 191 at or above the optimum capacity as shown in FIG. 6 (b) The first battery 191 can be charged in real time as much as possible. For example, when the capacity of the first battery 191 drops to 70% or less, the first battery 191 may be supplied with power from the second battery 192 to charge the first battery 191. In this case, it is possible to indicate that the second battery 192 is being charged with the first battery 191 as shown in FIG.

The control unit may use the first battery 191 first and control the power consumption to use the second battery 192 when the capacity of the first battery 191 falls below the minimum capacity. As shown in FIG. 7 (a), if the power is lower than the minimum capacity, the user can be informed of using the power of the second battery 192 (1513c).

The first battery 191 and the second battery 192 may be used separately. For example, the first battery 191 may use power for basic functions such as phone, communication, message sending and receiving of the mobile terminal 100, but may be used for a specific use such as a multimedia function for the second battery 192 . At this time, the basic function can set the user's preferred function as the basic function.

When the user uses both the first battery 191 and the second battery 192 while using the functions other than the basic functions such as the multimedia function or the game function and the mobile terminal 100 is turned off and becomes unusable . 7B, if the remaining capacity of the second battery 192 falls below the minimum capacity, the use of the corresponding function is restricted to save the first battery 191 for the basic function, The user can be informed via a notification window 1514c.

As described above, the mobile terminal 100 can increase the use time of the mobile terminal 100 by using two batteries simultaneously or selectively by mounting another battery to the rear cover 103, The mobile terminal 100 can control the mobile terminal 100. [

It is possible to increase the capacity of the battery by inserting a battery of the same type as that of the first battery 191 into the rear cover 103. There is no need to separately purchase and use the portable battery, can do.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

100: mobile terminal 101, 102: case
103: rear cover 104, 104 ': battery mount
110:
120: A / V input unit 130: user input unit
140: sensing unit 150: output unit
151: Display units 1513c and 1514c:
1510, 1511, 1512a, 1512b, 1513a, 1513b, 1514a, and 1514b:
160: memory 170: interface section
180: Controls 182 and 188:
183: 185: main control unit 190: power supply unit
191: first battery 192: second battery
193: connection part 194: connection terminal
200: Electronic parts

Claims (11)

A main body on which a first battery is mounted on a rear surface;
A connection part formed on a rear surface of the rear cover body covering the back surface of the main body and including a second battery inside and electrically connected to the second battery; And
And a control unit for controlling power usage by scheduling a usage order of the first battery and the second battery when the connection unit and the second battery are in contact with each other. The method according to claim 1,
Wherein the connection unit connects the second battery and the first battery,
Wherein the control unit recognizes the capacity of the first battery and the capacity of the second battery as a combined battery to control power usage. 3. The method of claim 2,
Further comprising a display unit located on a front surface of the main body and including a battery icon indicating a remaining amount of the battery,
Wherein the control unit controls the display unit such that the battery icon becomes larger when the second battery is connected to the connection unit. The method according to claim 1,
The control unit
Wherein the first battery is used first and the power usage is controlled to use the second battery when the capacity of the first battery drops below the minimum capacity. The method according to claim 1,
The control unit
Wherein the first battery is charged with the power of the second battery so that the first battery is maintained at an optimal capacity or more. The method according to claim 1,
The control unit
Wherein the second battery controls power usage to use only a designated function. The method according to claim 6,
Wherein,
And restricts the use of the designation function when the capacity of the second battery drops below a minimum capacity. The method according to claim 1,
Further comprising a display unit located on a front surface of the main body and including a battery icon indicating a remaining amount of the battery,
Wherein the control unit controls the display unit to display two battery icons when the second battery is connected to the connection unit. 9. The method of claim 8,
Wherein,
Wherein a battery icon corresponding to a battery in use and a battery icon corresponding to a battery not in use are separately displayed among the first battery or the second battery. The method according to claim 1,
Further comprising an interface for receiving power from an external power source,
And disconnects the power supplied from the second battery to the main body when power is applied through the interface. The method according to claim 1,
Further comprising an interface for receiving power from an external power source,
Wherein the connection unit further comprises a charging terminal for charging the second battery when external power is input through the interface.

Images