KR101456582B1 - portable charger - Google Patents

Abstract

Disclosed is a portable charger having a shape and a size such as those of a name card or a credit card, having an emblem such as an advertisement, or the like, marked on an outer surface thereof, and having a universal serial bus (USB) on-the-go (OTG) interface. The portable charger comprises a housing including an upper plate and a lower plate disposed to be spaced apart from one another, and a circuit unit disposed between the upper plate and the lower plate of the housing. The circuit unit comprises a first connector receiving external power or data, a second connector outputting internal power or data, a third connector receiving data of a memory inserted from the outside, and a charging/discharging unit charging input power through the first connector and discharging charged power through the second connector, and an interface control unit outputting input data to the second connector through a first connector or the third connector, or outputting input data to the memory through the first connector.

Description

Portable charger

More particularly, the present invention relates to a portable charging device having a shape and size such as a business card or a credit card, displaying an emblem such as an advertisement on an external surface thereof, and a USB (Universal Serial Bus) OTG -Go) interface function.

2. Description of the Related Art In general, despite the development of battery technology of a mobile communication terminal, for example, a mobile phone, the battery charging time of the mobile communication terminal is limited to a certain extent.

Accordingly, in order for the user to continuously use the mobile communication terminal, the battery of the mobile communication terminal must be charged periodically.

For example, when the user leaves the home or office, when the battery is discharged due to a sudden increase in the call volume or an increase in the usage amount of the mobile communication terminal, the user may use a convenience store or other electronic device charging station .

In addition, when the mobile communication terminal is charged by this method, the charging time takes a long time.

Therefore, in the future, when a battery of various portable electronic devices such as a mobile communication terminal, a game machine, a digital camera, and the like suddenly discharges, it can be easily and easily charged regardless of time and place, A USB OTG interface function, and the like.

Korean Registered Patent No. 0433397: Card-type device serving both as an auxiliary power supply device and a host using the card-type device

The technical problem to be solved by one embodiment of the present invention is to reduce the size of a small size such as a business card or a credit card by arranging a circuit part in a space between the upper plate and the lower plate and to display a mark such as an advertisement on the outer surface, And it is intended to provide a portable charging device that has a variety of functions such as a USB memory function and a USB OTG interface function and is quick in charging and easy to carry.

A portable charging apparatus according to an embodiment of the present invention includes a housing including an upper plate and a lower plate spaced apart from each other with a predetermined space and a circuit portion disposed between the upper plate and the lower plate of the housing, A second connector for outputting power or data therein, a third connector for receiving data of a memory inserted from the outside, and a second connector for charging the input power through the first connector, Outputting the input data to the second connector or outputting the input data through the first connector through the charging / discharging part for discharging the charged power via the second connector and the first connector or the third connector And outputting the data to the memory.

Here, a predetermined emblem may be displayed on the outer surface of at least one of the upper plate and the lower plate.

The distance between the upper plate and the lower plate may be about 1 - 10 mm.

The second connector may include an output terminal portion which is electrically connected to the external device and is mounted on or separated from the seating portion of the housing, and a cable which is connected to the circuit portion from the output terminal portion.

Here, the cable of the second connector is inserted into the housing when the output terminal portion of the second connector is mounted to the seating portion of the housing, and when the output terminal portion of the second connector is detached from the seating portion of the housing, .

The circuit unit may include a mode switching unit for generating a switching signal according to a charging mode or a data communication mode and outputting the switching signal to the interface control unit.

The circuit unit may include a display unit for displaying a current mode in accordance with mode switching of the mode switching unit.

The charging / discharging unit includes a battery unit for charging a power source input from the first connector, a power source voltage step-up unit for stepping up the power source input from the battery unit and transferring the power source to the second connector, . ≪ / RTI >

Here, the charge / discharge unit may include a battery protection unit electrically connected between the battery unit and the power source voltage up unit to control overcharge discharge of the battery unit.

The charging / discharging unit may include a voltage adjusting unit for adjusting the power input from the battery unit to an internal power source.

The portable charging apparatus according to the present invention can be miniaturized to a small size such as a business card or a credit card by displaying a circuit such as an advertisement or the like on the outer surface by arranging a circuit part in a space between the upper plate and the lower plate, It has various functions such as USB memory function and USB OTG interface function, and is fast in charging and easy to carry.

1 is a perspective view showing a portable charger according to the present invention;
Figure 2 is a block diagram showing the circuitry of Figure 1;
3 is a view for explaining a mode switching method of the charging apparatus according to the present invention;
4 is a view for explaining a method for displaying the current mode state of the charging apparatus according to the present invention;
5 is a view for explaining a battery charging method of the charging apparatus according to the present invention;
6 is a diagram for explaining a smartphone charging method using the charging apparatus according to the present invention;
7 is a view for explaining a data communication method between a charging device and an external PC according to the present invention;
8 is a diagram for explaining a data communication method of a charging device and a smartphone according to the present invention;

Hereinafter, the present invention will be described in more detail with reference to the drawings.

The suffix "module" and " part "for components used in the following description are given merely for ease of description, and the" module "and" part "

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

As used herein, terms used in the present invention are selected from general terms that are widely used in the present invention while taking into account the functions of the present invention, but these may vary depending on the intention or custom of a person skilled in the art or the emergence of new technologies. In addition, in certain cases, there may be a term arbitrarily selected by the applicant, in which case the meaning thereof will be described in the description of the corresponding invention. Therefore, it is intended that the terminology used herein should be interpreted based on the meaning of the term rather than on the name of the term, and on the entire contents of the specification.

1 is a perspective view showing a portable charger according to the present invention.

1, the portable charging apparatus includes a housing 100 including a top plate 110 and a bottom plate 120 which are spaced apart from each other with a predetermined space therebetween, a top plate 110 and a bottom plate 120, And a circuit unit 200 disposed between the circuit board 120 and the circuit board 200.

Here, the circuit unit 200 includes a first connector 210 for receiving external power or data, a second connector 220 for outputting internal power or data, a third connector 220 for receiving data of a memory inserted from the outside, A charging / discharging unit (not shown) for charging the input power source through the connector 230 and the first connector 210 and discharging the charged power through the second connector 220, (Not shown) that outputs input data to the second connector 220 through the first connector 210 or the third connector 230 or outputs the input data to the memory via the first connector 210 .

A predetermined emblem may be displayed on an outer surface of at least one of the upper plate 110 and the lower plate 120.

Here, the mark may be a symbol, a character, a figure, a three-dimensional shape, or a combination thereof and a color body combined with it.

Such a mark may be a design and an advertisement related to a business card, a credit card, a publicity material, and the like.

Thus, the filling device of the present invention can be used for publicity and advertising.

The distance d between the upper plate 110 and the lower plate 120 may be about 1 to 10 mm, preferably about 3 to 5 mm.

The area of the upper plate 110 and the lower plate 120 may be about the size of a business card or a general credit card.

Therefore, the charging device of the present invention is small in size and easy to carry because of its light weight.

The upper plate 110 and the lower plate 120 may be an impermeable member, but may be a light transmissive member or a semitransparent member, as the case may be.

For example, the upper plate 110 and the lower plate 120 may be formed of an acrylic resin, but are not limited thereto. In addition, polystyrene (PS), polymethylmethacrylate (PMMA), cyclic olefin copoly ), Polyethylene terephthalate (PET), high permeability plastic such as resin, and the like.

A predetermined pattern may be disposed on the outer surfaces of the upper plate 110 and the lower plate 120, and the pattern may display a predetermined emblem.

Here, a mark may mean a symbol, a letter, a figure, a three-dimensional shape, or a combination thereof and a color body combined therewith.

In some cases, the pattern may be a projection projecting to the outer surface of the upper plate 110 and the lower plate 120, wherein the vertical cross section of the projections is composed of a first surface and a second surface facing each other, The angle between the face and the second face may be obtuse or acute.

For example, the pattern may include a plurality of projections arranged side by side in one direction, and the projections may be in a stripe shape.

In some cases, the pattern may be at least one of an embossing pattern, an engraving pattern, and a printing pattern, and in some cases, the pattern may include a plurality of fluorescent particles have.

And, the first connector 210 can be electrically connected to the first electronic device, and the second connector 220 can be electrically connected to the second electronic device.

The first and second electronic devices may be a mobile terminal or a fixed terminal. Examples of the mobile terminal include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant Assistants, PMP (Portable Multimedia Player), navigation, and the like, and the fixed terminal may include a digital TV, a desktop computer, and the like.

The number of connection pins of the first connector 210 and the number of connection pins of the second connector 220 may be the same.

For example, the first connector 210 may be a USB (Universal Serial Bus) socket, and the second connector 220 may be a USB plug.

Optionally, the second connector 220 may also be a USB socket.

As another example, the number of connection pins of the first connector 210 and the number of connection pins of the second connector 220 may be different from each other.

In addition, the connection pin of the first connector 210 and the connection pin of the second connector 220 may have different sizes or lengths.

For example, the first connector 210 may be a USB (Universal Serial Bus) socket and the second connector 220 may be a 5-pin micro socket or a 5-pin micro plug, It does not.

That is, the first connector 210 and the second connector 220 may have various types of connection pin structures.

Further, the first connector 210 and the second connector 220 may be disposed on the same plane.

The reason for this is that the thickness of the charging device is made thin.

The first connector 210 and the third connector 230 may be disposed on the same plane so that the opening of the first connector 210 and the opening of the third connector 230 are oriented in the same direction .

Here, the first connector 210 may be a USB socket, and the third connector 230 may be a SD (Secure Digital) memory socket.

The first connector 210 and the third connector 230 may be fixedly disposed within the housing 100 and the second connector 220 may be detachable within the housing 100.

Here, the attachment / detachment direction of the second connector 220 may be perpendicular to the arrangement direction of the openings of the first connector 210 and the third connector 230, but is not limited thereto.

The second connector 220 includes an output terminal portion 222 electrically connected to an external device and mounted or separated to the seating portion of the housing 100 and a connection terminal portion 222 connected to the circuit portion 200 from the output terminal portion 222. [ And a cable 224 connected to the cable 224.

Here, the cable 224 of the second connector 220 can be inserted into the housing 100 when the output terminal portion 222 of the second connector 220 is mounted to the seating portion of the housing 100, When the output terminal portion 222 of the second connector 220 is separated from the seating portion of the housing 100, the output terminal portion 222 of the second connector 220 may be exposed to the outside of the housing 100.

The circuit unit 200 may include a mode switching unit (not shown) for generating a switching signal according to a charging mode or a data communication mode and outputting the switching signal to an interface control unit (not shown).

Here, the mode switching unit (not shown) can generate the switching signal by pressing the mode switching button 240 disposed on the upper plate 110 or the lower plate 120 of the housing 100.

At this time, the mode switching button 240 may be disposed between the first connector 210 and the third connector 230 of the circuit unit 200.

In addition, the circuit unit 200 may include a display unit (not shown) for displaying a current mode in accordance with mode switching of a mode switching unit (not shown).

Here, the display unit (not shown) includes a plurality of light emitting diodes 250 that emit light according to the current mode of operation. The light emitting diodes 250 may be mounted on the upper plate 110 or the lower plate 120 of the housing 100, Lt; / RTI >

At this time, the area where the light emitting diode 250 is exposed may be determined according to the position of the mode switching button 240 of the mode switching unit.

For example, when the mode switching button 240 is disposed on the upper plate 110, the light emitting diode 250 is also disposed on the upper plate 110. When the mode switching button 240 is disposed on the lower plate 120, (250) may also be disposed on the lower plate (120).

The reason is that the mode switching button 240 and the light emitting diode 250 are disposed together in the upper plate 110 or the lower plate 120 to provide convenience to the user.

The charging / discharging unit (not shown) can charge the input power source through the first connector 210 and discharge the charged power through the second connector 220, A power supply step-up unit for stepping up the power supplied from the battery unit and transmitting the stepped-up power to the second connector 220, and a controller for controlling the battery unit and the power supply step-up unit .

Here, the battery unit can charge the power input from the first connector 210 with a power source of 500 mA or less at maximum.

The reason for this is to prevent damage to the battery unit.

For example, when a power source of about 5 V is input from the first connector 210, in order to prevent damage to the battery unit, the battery unit can be charged with a power source of up to 500 mA or less, have.

The power supply voltage-up unit of the charge / discharge unit can increase the power supplied from the battery unit to the second connector 220 by the control signal of the control unit.

Here, the power supply voltage boosting unit can boost the power supplied from the battery unit to about 5V.

This is because the charging voltage of the second electronic device connected to the second connector 220 is about 5 V and the voltage charged in the battery portion of the charging device is about 5 V or less.

For example, when the voltage charged in the battery section is about 3.7 V, the power-up section can boost the voltage of about 3.7 V to about 5 V and transmit it to the second electronic device through the second connector 20.

Therefore, the charging device of the present invention can be utilized as an auxiliary charging device of an electronic device by arranging a power-up part and applying it to an electronic device capable of charging at 5V.

Next, the charge / discharge unit may include a battery protection unit electrically connected between the battery unit and the power source voltage up unit to control overcharge discharge of the battery unit.

The reason for this is to prevent the battery from being damaged due to overcharge, overdischarge, and overcurrent.

Then, the charge / discharge unit may include a voltage adjusting unit that adjusts a power input from the battery unit to an internal power source.

Here, the voltage adjusting unit can adjust the power input from the battery unit to about 1.8V and about 3.3V.

The reason is that it is used as a power source necessary for the interface control unit of the charging apparatus and all other circuits.

Next, the control unit can check the charging state of the battery unit and control the display unit to display the charging state.

For example, the control unit controls the display unit when charging of the battery unit is completed, and the display unit can display green in accordance with the control signal of the control unit.

Then, the control unit controls the display unit when the discharge of the battery unit is completed, and the display unit can display it in red in accordance with the control signal of the control unit.

Here, when the battery unit is completely discharged, the control unit can forcibly cut off the load, thereby minimizing damage to the battery.

When an electronic device is connected to the first connector 210, the interface control unit (not shown) transmits the data of the input electronic device via the first connector 210, in accordance with the mode switching signal of the mode switching unit, And output to the second connector 220.

If an electronic device is connected to the first connector 210 and a memory card is connected to the third connector 230, the interface control unit (not shown) The data of the input electronic device can be output to the third connector 230 via the connector 210 and stored in the memory card.

Alternatively, when a memory card is connected to the third connector 230, the interface control unit (not shown) transmits the data of the input memory card via the third connector 230 in accordance with the mode switching signal of the mode switching unit To the second connector (220).

In another case, the interface control unit (not shown), when power is supplied to the first connector 210, supplies the input power via the first connector 210 to the battery .

Therefore, the charging device of the present invention can be miniaturized to a small size such as a business card or a credit card, and can display a mark such as an advertisement on the outer surface, thereby being excellent in advertisement and promotion effect, It has various functions such as the same, charging is quick, and it is easy to carry.

2 is a block diagram showing the circuitry of FIG.

2, the circuit unit includes a first connector 210, a second connector 220, a third connector 230, a charge / discharge unit 60, an interface control unit 70, a mode switching unit 80, and a display unit 90.

Here, the first connector 210 may receive external power or data, the second connector 220 may output internal power or data, and the third connector 230 may be connected to the external The data of the inserted memory can be received.

Then, the charge / discharge unit 60 can charge the input power source through the first connector 210 and discharge the charged power source through the second connector 220.

Here, the charge / discharge unit 60 may include a battery unit 62, a power supply voltage up unit 64, and a control unit 66.

The battery section 62 of the charging / discharging section 60 can charge the power supplied from the first connector 210 by the control signal of the control section 66. [

At this time, the battery unit 62 can charge the power input from the first connector 210 with a power source of 500 mA or less at maximum.

The reason for this is to prevent the battery unit 62 from being damaged.

For example, in order to prevent damage to the battery unit 62 when a power source of about 5 V is input from the first connector 210, the battery unit 62 is charged with a power source of 500 mA or less at maximum, And the power source can be charged with current.

The power supply voltage boosting unit 64 of the charge / discharge unit 60 can increase the power supplied from the battery unit 62 to be transferred to the second connector 220 by the control signal from the control unit 66 have.

Here, the power supply voltage up unit 64 can boost the power supplied from the battery unit 62 to about 5V.

This is because the charging voltage of the second electronic device connected to the second connector 220 is about 5 V and the voltage charged in the battery unit 62 of the charging device is about 5 V or less.

For example, when the voltage charged in the battery unit 62 is about 3.7 V, the power supply voltage up unit 64 boosts the voltage of about 3.7 V to about 5 V, And transmitted to an electronic device.

Therefore, the charging device of the present invention can be utilized as an auxiliary charging device of an electronic device by applying the power up section 64 to an electronic device capable of charging 5V.

Next, the charge / discharge unit 60 includes a battery protection unit 67 electrically connected between the battery unit 62 and the power source voltage up unit 64 to control the overcharge discharge of the battery unit 62 It is possible.

The reason for this is to prevent the battery unit 62 from being damaged due to overcharge, overdischarge, and overcurrent.

The charging / discharging unit 60 may include a voltage adjusting unit 68 for adjusting the power supplied from the battery unit 62 to an internal power source.

Here, the voltage adjusting unit 68 can adjust the power input from the battery unit 62 to about 1.8V and about 3.3V.

The reason is that it is used as a power source necessary for the interface control unit 70 of the charging apparatus and all other circuits.

The interface control unit 70 outputs the input data to the second connector 220 through the first connector 210 or the third connector 230 or outputs the input data to the second connector 220 through the first connector 210 or the third connector 230, Data can be output to the memory.

For example, when the electronic device is connected to the first connector 210, the interface control unit 70 controls the switching of the input electronic device (not shown) via the first connector 210 in accordance with the mode switching signal of the mode switching unit 80. [ Can be output to the second connector 220.

The interface control unit 70 may control the mode switching unit 80 in response to the mode switching signal of the mode switching unit 80 when the electronic device is connected to the first connector 210 and the memory card is connected to the third connector 230 , The data of the input electronic device can be output to the third connector 230 via the first connector 210 and stored in the memory card.

Alternatively, the interface controller 70 may connect the memory card to the third connector 230 via the third connector 230 in accordance with the mode switching signal of the mode switching unit 80, It is possible to output the data of the card to the second connector 220.

The interface controller 70 controls the first connector 210 to supply power to the first connector 210 via the first connector 210 in accordance with the mode switching signal of the mode switching unit 80. [ Can be charged by the battery unit 62. [

Next, the mode switching unit 80 can generate a switching signal in accordance with the charging mode or the data communication mode, and output the switching signal to the interface control unit 70.

Here, the mode switching unit 80 can generate the switching signal by pressing the mode switching button disposed on the upper or lower plate of the housing.

Then, the display unit 90 can display the current mode in accordance with the mode switching of the mode switching unit 80. [

Here, the display unit 90 includes a plurality of light emitting diodes that emit light in accordance with the current mode of operation, and the light emitting diodes may be exposed to the upper or lower plate of the housing.

3 is a diagram for explaining a mode switching method of the charging apparatus according to the present invention.

3, the charging device 10 may include a mode switching button 240 and a light emitting diode 250 on an upper plate or a lower plate of the housing 100. As shown in FIG.

A mode switching unit (not shown) for generating a switching signal according to a charging mode or a data communication mode may be disposed under the mode switching button 240. When a user presses the upper or lower plate of the housing 100 When the mode switching button 240 is pressed, the mode switching unit (not shown) can generate the switching signal by pressing the mode switching button 240.

For example, when the user presses the mode change button 240 once, it may be in the charge mode, and when the user presses the mode change button 240 twice, it may be in the data communication mode, The charging device may be turned off in an off mode.

As described above, according to the charging apparatus of the present invention, the mode can be switched according to the number of times the mode switching button 240 is pressed by the user.

The light emitting diode 250, which is the display unit, can display the current mode in accordance with the mode switching.

Therefore, the mode switching button 240 and the light emitting diode 250, which is a display unit, can be disposed together on the same side of the housing 100.

The reason for this is that the mode switching button 240 and the light emitting diode 250 are disposed together on the upper plate or the lower plate of the housing, thereby providing convenience to the user in accordance with the mode operation.

4 is a view for explaining a method of displaying the current mode state of the charging apparatus according to the present invention.

As shown in FIG. 4, in the charging apparatus 10, a plurality of light emitting diodes 250 may be disposed on the upper or lower plate of the housing.

Here, the light emitting diodes 250 may be turned on and off depending on the current mode.

At this time, the plurality of light emitting diodes 250 may be arranged at regular intervals in parallel.

For example, in the case of a discharge mode for discharging power for charging an external device such as a smart phone, a plurality of light emitting diodes 250 may not be turned on and off.

And, in the case of a charging mode or a data communication mode in which power is being charged from the external power source or connected to an external device such as a PC, the plurality of light emitting diodes 250 are turned on and off in the first connector direction Or may be turned on and off sequentially from one side to the other side.

Next, in the OTG mode for data communication with an external device such as a smart phone, the plurality of light emitting diodes 250 are turned on and off in a direction opposite to the first connector, or sequentially lit in one direction from the other side It may flash.

5 is a view for explaining a battery charging method of a charging apparatus according to the present invention.

5, the first connector 210 of the charging apparatus 10 may be connected to a plug 310 of a charge-only adapter 300 connected to an external power source, or may be connected to a USB port of an external device such as a PC, So that the battery can be charged with power.

Here, the battery charging can be performed automatically when the external power is connected to the first connector 210 without switching the mode. When the connection between the first connector 210 and the external power source is blocked, Can be interrupted.

The plurality of light emitting diodes 250, which are the display unit, can be turned on and off so as to inform the outside that the battery is currently being charged.

6 is a diagram for explaining a smartphone charging method using the charging apparatus according to the present invention.

6, the charging device 10 may connect the second connector 220, which is detachable from the housing, to an external device such as a smart phone 400 or the like.

When the mode switching button 240 of the charging apparatus 10 is pressed once by the user, for example, the mode switching unit generates the charging mode switching signal, so that the charging apparatus 10 can set the charging mode Can be activated.

Then, the light emitting diode 250, which is the display unit of the charging apparatus 10, can be turned on and blinking to inform the outside that the current mode is charging the smartphone.

As described above, the charging device 10 can perform the discharging operation for charging the smartphone 400 after switching to the discharging mode for charging the smartphone in the case of charging the smartphone.

Here, on the screen 410 of the smartphone 400, a message indicating that charging is currently being performed may be displayed.

In the discharge mode, when the connection between the charging device 10 and the smartphone 400 is released, the discharge mode can be automatically terminated after a predetermined time, for example, about 10 seconds has elapsed.

7 is a diagram for explaining a data communication method between a charging device and an external PC according to the present invention.

7, the first connector 210 of the charging apparatus 10 may be connected to the PC 500 through a PC-specific adapter 510. [

An external memory card can be inserted into the third connector (not shown) of the charging apparatus 10 and connected thereto.

Then, data such as voice, moving picture, and document file stored in the PC 500 may be stored in an external memory card connected to the third connector through the PC-specific adapter 510. [

Here, in the data communication mode, when the PC 500 is connected to the first connector 210 without mode switching, data communication can be automatically performed, and a connection between the first connector 210 and the PC 500 If blocked, data communication may be automatically interrupted.

8 is a diagram for explaining a data communication method of a charging device and a smartphone according to the present invention.

8, the charging device 10 may connect the second connector 220, which is detachable from the housing, to an external device such as a smart phone 400 or the like.

Next, an external memory card may be inserted into the third connector 230 of the charging apparatus 10 and connected thereto.

Then, when the mode switching button 240 of the charging apparatus 10 is pressed twice by the user, for example, the mode switching unit generates the OTG mode switching signal, whereby the charging apparatus 10 sets the OTG mode Can be activated.

Then, the light emitting diode 250, which is the display unit of the charging apparatus 10, can be turned on and off so as to inform the outside that the current mode is the OTG mode.

In this way, when performing the data communication with the smartphone 400, the charging device 10 performs the OTG mode operation for data communication with the smart phone 400 after switching to the OTG mode for data communication Can be performed.

Thus, data such as voice, moving picture, and document file stored in the external memory card can be input and stored in the smartphone 400 via the second connector 220. [

Here, on the screen 410 of the smartphone 400, a data list currently stored and a message indicating that data is being stored may be displayed.

In the OTG mode, when the connection between the charging device 10 and the smartphone 400 is released, the OTG mode can be automatically terminated after a predetermined period of time, for example, about 10 seconds has elapsed.

As described above, the portable charging apparatus according to the present invention can be miniaturized to a small size such as a business card or a credit card, and can display a mark such as an advertisement on its outer surface by arranging a circuit portion in a space between the upper plate and the lower plate. And publicity effect. It combines various functions such as USB memory function and USB OTG interface function, and it is quick to charge and easy to carry.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

10: Charging device 100: Housing
110: Top plate 112: Mark
120: lower plate 200: circuit part
210: first connector 220: second connector
230: third connector

Claims (20)

A housing including a top plate and a bottom plate which are spaced apart from each other with a predetermined space; And,
And a circuit portion disposed between the upper plate and the lower plate of the housing,
The circuit unit includes:
A first connector for receiving external power or data;
A second connector for outputting internal power or data;
A third connector receiving data of a memory inserted from the outside;
And a voltage regulator for regulating the power input from the battery unit to an internal power source for charging the power source inputted through the first connector and discharging the charged power through the second connector, ;
A mode switching unit formed in the form of a mode switching button disposed on the upper or lower plate of the housing and generating a switching signal according to a charging mode or a data communication mode by pressing the mode switching button;
An interface for outputting data input through the first connector or the third connector to the second connector or outputting data input through the first connector to the memory based on a mode switching signal of the mode switching unit, A control unit; And
And a display unit for displaying an ongoing mode according to the mode switching of the mode switching unit and determining an arrangement position according to the position of the mode switching button of the mode switching unit. The portable charger according to claim 1, wherein a predetermined emblem is displayed on an outer surface of at least one of the upper plate and the lower plate. delete delete The connector according to claim 1, wherein the first connector and the third connector are disposed on the same plane,
Wherein the opening portion of the first connector and the opening portion of the third connector are arranged to face in the same direction. 6. The connector according to claim 5, wherein the first connector and the third connector are fixedly arranged in the housing,
Wherein the second connector is detachable within the housing. The portable charger device according to claim 6, wherein a direction in which the second connector is detached is perpendicular to an arrangement direction of the first connector and the opening of the third connector. delete delete delete delete delete delete delete delete delete delete delete delete delete

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