KR200247576Y1 - Apparatus for multi battery back-up - Google Patents

Abstract

Disclosed is a portable multi-battery backup device, comprising: a power charging connector for connecting an external input power to charge an internal battery; and controlling to charge external power input through a power charging connector when a user selects an internal battery charge. When the user selects the external battery charging, the portable charging unit controls the output of the voltage charged therein for the external battery charging, and the built-in portable charging unit, and the voltage input through the power charging connector under the control of the portable charging unit. The internal battery outputs the charged voltage to the outside under the control of the portable charging unit, and an external battery that requires charging is connected to the external battery by outputting the internal battery charging voltage output from the portable charging unit to the external device. Configured for external battery charging connector to charge do.

Therefore, the present invention does not require users to visit the place where the battery charger is installed as in the prior art, it is possible to use a phone call and a device while charging an external battery, and is easy to carry and is not limited to moving distance during charging. Provide effect.

Description

Portable Multi Battery Backup Device {Apparatus for multi battery back-up}

The present invention relates to a portable multi-battery backup device.

More specifically, the present invention relates to a portable multi-battery backup device which charges a battery by charging a portable battery backup device at home or a car, and then connects a mobile phone, a portable audio device, etc., which is carried while carrying. .

Recently, the use of mobile phones or portable audio devices (MP3 players, CD players, etc.) of the general public is rapidly increasing due to the convenience of life and busy daily life, and users are moving by using the mobile phones or portable audio devices described above. You can talk on the phone or listen to music.

As described above, the mobile phone or the portable audio device has an advantage that it can be used on the go. However, since the battery is consumed, users have to carry a spare battery, and there is not enough battery to operate the device. Users will not be able to use the device.

Accordingly, recently, a battery charger is installed in a city center or various convenience facilities so as to charge a depleted battery in a short time.

However, when charging a battery of a mobile phone, a portable audio device, etc. using a commercially available battery charger as described above, users cannot receive important contact from the outside while charging the battery in the case of a mobile phone. A problem occurred.

In addition, users had to visit the place where the battery charger was installed to charge the battery, as well as the hassle of finding the battery at the time when the battery was fully charged, and users could travel long distances while charging the battery. There was no inconvenience.

An object of the present invention is to charge the battery by charging a portable battery backup device in the home or car, to carry the portable battery, portable audio devices, etc. that need to charge the battery while carrying the above problem to solve the above problems To provide a portable multi-battery backup device.

1 is a view schematically showing the configuration of a portable multi-battery backup device according to the present invention;

2 is a block diagram schematically showing the configuration of the portable charging unit of FIG.

3 is a detailed circuit diagram of each part of the portable charging unit of FIG. 2;

4 and 5 are views showing a state of charge and use of the portable multi-battery backup device according to the present invention, respectively.

Explanation of symbols on the main parts of the drawings

100: power charging connector

200: portable charging unit

205: surge protection and reverse polarity voltage protection circuit

210: first charge selection switch unit

215: Internal battery charging circuit and external battery charging lifting type chopper circuit part

220: charging voltage setting rotary switch unit

225: charge switch control circuit rotary switch unit

230: charging current blocking circuit

235: charging voltage control power supply circuit

240: second charge selection switch unit

245: control circuit for the internal battery charge request

250: display unit

300: internal battery

400: Connector for external battery charging

Portable multi-battery backup device according to the present invention for achieving this purpose, and a power charging connector for connecting an external input power for internal battery charging; an external input through the power charging connector when the user selects the internal battery charging A portable charging unit which controls to charge the power and controls an output of a voltage charged therein for charging the external battery when the user selects the external battery charging; An internal battery built in the portable charging unit, charging the voltage input through the power charging connector according to the control of the portable charging unit, and outputting the charged voltage to the outside under the control of the portable charging unit; And an external battery charging connector for charging an external battery by outputting a charging voltage of the internal battery to the external device by connecting an external device requiring charging with a power cable.

Hereinafter, with reference to the accompanying drawings will be described in detail a portable multi-battery backup device of the present invention.

1 is a view schematically showing the configuration of a portable multi-battery backup device according to the present invention.

As shown, the power charging connector 100 connects an external input power to charge the internal battery 300 and applies the external input power to the portable charging unit 200 which will be described later.

That is, the above-mentioned power charging connector 100 is connected to an adapter that receives an external commercial AC power (110V / 220V) and converts it into DC power to charge the internal battery 300 with DC power applied through the adapter. Or by connecting the car cigar jack to charge the internal battery 300 by the battery power of the vehicle is applied through the car cigar jack (see Figure 4).

The portable charging unit 200 controls to charge the external battery input through the power charging connector 100 to the internal battery 300 when the user selects the internal battery 300 to charge, and the external battery when the user selects the external battery charge. Controls the output of the voltage charged in the internal battery 300 for charging.

The internal battery 300 is built in the portable charging unit 200, and charges external power input through the power charging connector 100 under the control of the portable charging unit 200, and controls the portable charging unit 200. Therefore, the charged voltage is output to the outside.

In this case, the above-described internal battery 300 is typically provided with a lithium-ion (Li-ion) battery, but is not limited thereto. Of course, other types of batteries may be used.

The external battery charging connector 400 connects an external device (mobile phone, cassette player, CD player, MP3 player) that needs to be charged with a power cable to charge the internal battery 300 output from the portable charging unit 200. Output the voltage to an external device to charge the external battery (see Fig. 5).

2 is a block diagram schematically showing the configuration of the portable charging unit 200 of FIG. 1 described above, and FIG. 3 is a detailed circuit diagram of each part of the portable charging unit 200.

As shown, the surge protection and reverse polarity voltage protection circuit unit 205 protects the circuit from the surge voltage and reverse polarity voltage of the external input power input through the power charging connector 100 for charging the internal battery 300. That's the part.

The surge protection and reverse polarity voltage protection circuit unit 205 described above is composed of a varistor Z for protecting a circuit from a surge voltage of an external power supply and a bridge diode BD for protecting the circuit from a reverse polarity voltage.

The first charge selection switch unit 210 allows a user who uses a portable multi-battery backup device to select either an internal battery charge or an external battery charge. Interlocked.

The internal battery charging circuit and the external battery charging elevating chopper circuit unit 215 may include the surge protection and reverse polarity voltage protection circuit unit 205 when the first charge selection switch unit 210 is selected to charge the internal battery 300. The input power is outputted by stepping down to charge the internal battery 300, and when the first charge selection switch unit 210 is selected as external battery charging, the voltage output from the internal battery 300 charged by the external power source. To increase the output pressure.

The above-described internal battery charging circuit and external battery charging lifting type chopper circuit unit 215 includes a capacitor C1 for suppressing ripple noise with respect to an input voltage, a resistor R1 for setting an output current, and a switching for performing current switching. The DC-DC converter control circuit (IC1) capable of step-down, step-up, and polarity inverting choppers with built-in transistors, and the switching transistor inside the DC-DC converter control circuit (IC1) turn on / off the input power and A capacitor C2 for determining the transistor TR1, the resistors R2 and R3 for bias and base protection of the transistor TR1, and the charge / discharge oscillation frequency of the DC-DC converter control circuit IC1; The flywheel diode (D1) and the DC-DC converter control circuit (IC1) provide a bypass for smoothly returning the stored energy to the power supply when the configuration of the power supply changes and the inductance of the load is to be released. ), The choke coil L1 performs a smoothing function for accumulating energy in the period during which the switching transistor is turned on and suppresses output ripple, and the internal switching transistor and choke coil L1 of the DC-DC converter control circuit IC1. It is composed of a diode (D2) that acts as a step-up chopper.

At this time, pins 1, 7, and 8 of the above-described DC-DC converter control circuit IC1 serve to protect overcurrent, and pin 3 performs a function of timing determination, and pins 4 and 6 The pins are connected to the ground (GND) and the power supply for the operation of the DC-DC converter control circuit (IC1), respectively, pin 5 compares the detection signal of the applied output voltage, pin 2 is the choke coil (L1) In addition, it operates as a boost type chopper with the diode D2.

The charging voltage setting rotary switch unit 220 is a part for allowing a user to select a charging voltage when the user selects an internal battery or an external battery charge, and interlocks with the charging voltage control circuit rotary switch unit 225 to be described below. It consists of resistors R4 to R9 and a switch.

For example, when the user selects the position of the charging voltage setting rotary switch 220 as the charging of the internal battery 300, a resistor R6 for setting a voltage of 8 V is connected to the switch, and the user carries the battery among external devices. If you choose to charge the phone, a resistor (R7) for setting the voltage of 4.2V is connected to the switch.If the user selects to charge a portable audio device (cassette play, MP3 player, etc.) among the external devices, the 2.8V or 1.4V A resistor R8 or resistor R9 for setting the voltage is connected to the switch.

The charging voltage control circuit rotary switch unit 225 is interlocked with the charging voltage setting rotary switch unit 220 described above, and charges the charging voltage set value set by the user and the charging voltage of the internal battery or the external battery when the internal battery or the external battery is charged. In comparison, a high signal for indicating charge blocking and completion of external battery charging is output to the charge current blocking circuit unit 230 and the display unit 250 which will be described later.

The above-described charging voltage control circuit rotary switch unit 225 is a resistor (R14 to R19) for distributing the voltage to maintain the charging voltage selected by the user through the charging voltage setting rotary switch unit 220 when charging the internal battery or external battery And a comparator for outputting a high signal to indicate charge interruption and completion of external battery charge if the voltage held by the switch and the distribution resistors R14 to R19 is higher than or equal to the charge voltage of the internal battery or the external battery. Consists of

The charging current blocking circuit unit 230 blocks the charging current applied from the internal battery charging circuit and the external battery charging lifting type chopper circuit unit 215 according to the control signal output from the charging voltage control circuit rotary switch unit 225.

The above-described charging current blocking circuit unit 230 prevents the PNP transistor TR2, the base protection resistor R10 of the PNP transistor TR2, and the charge reverse current and the leakage current to prevent overcharging the internal and external batteries. Is composed of a diode D3.

The charging voltage control power supply circuit unit 235 maintains the power applied from the internal battery charging circuit and the external battery charging lifting type chopper circuit unit 215 at a constant voltage according to the charging voltage set by the charging voltage setting rotary switch unit 220. do.

The above-described charging voltage control power supply circuit 235 is composed of a three-terminal regulator (IC2) to perform a function of maintaining a constant voltage, and a capacitor (C3) to prevent ripple and oscillation of the output terminal of the three-terminal regulator (IC2). have. At this time, the boosted output voltage enters pin 1 of the three-terminal regulator IC2, pin 2 is grounded, and a voltage at which a constant voltage is maintained through pin 3 is a charge voltage control circuit rotary switch unit 225. And it is output to the power supply terminal of the comparator (IC3) of the internal battery charge request control circuit unit 245 to be described later.

The second charge selection switch unit 240 is connected to the first charge selection switch unit 210 and connected to the internal battery 300 or the connector for external battery charging 400.

The internal battery charging request control circuit 245 compares the voltage applied from the charging voltage control power supply circuit 235 with the charging voltage of the internal battery 300 or the external battery to complete or charge the internal battery 300. The display control signal is output to the display unit 250 described later.

The internal battery charge request control circuit unit 245 described above is a high gain amplifier having two input terminals and a non-grounded input and a differential input, and compares the voltage applied from the charge voltage control power supply circuit unit 235 with the charge voltage of the internal or external battery. Comparator IC3, resistors R11 and R12 for distributing the voltage applied from the charge voltage control power supply circuit section 235, and resistor R13 for output terminal protection of the comparator IC3.

For example, when a voltage lower than 6.5 V is applied to pin 2 (non-inverting (-) terminal) of the comparator IC3, a high signal is output to turn on the red LED of the display unit 250, thereby providing the user with an internal battery 300. In this case, the display unit 250 is not turned on by outputting a low signal when a voltage higher than 6.5 V is applied.

The display unit 250 lights green indicating that the external battery is fully charged according to the display control signal (high signal) output from the charging voltage control circuit rotary switch unit 225 and is output from the internal battery charging request control circuit unit 245. In accordance with the display control signal to be displayed as a part of the green or red light to indicate the completion of the charge or the charging request of the internal battery 300, it is composed of a two-color LED to light the green and red.

Next, the operation of the portable multi-battery backup device according to the present invention configured as described above will be described in detail with reference to FIGS. 4 and 5.

4 and 5 are views showing a state of charge and use of the portable multi-battery backup device according to the present invention, respectively.

First, when the user wants to charge the internal battery 300 provided in the portable multi-battery backup device, as shown in FIG. 4, for inputting commercial AC power to the power charging connector 100 of the portable multi-battery backup device. Plug in the adapter or plug in your car's cigar jack for the car's battery power input.

Thereafter, the user selects the first charge selection switch unit 210 to charge the internal battery 300 and at the same time a voltage for charging the internal battery 300 to the charge voltage setting rotary switch unit 220 (for example, 8V).

Then, when the external input power applied through the power charging connector 100 blocks the charging current according to the step-down operation of the internal battery charging circuit and the external battery charging lifting type chopper circuit unit 215. The internal battery 300 will be charged until.

In this case, the charging current blocking circuit unit 230 may receive a control signal (high signal) for blocking the charging from the charging voltage control circuit rotary switch unit 225 comparing the charging voltage set value set by the user with the charging voltage of the internal battery. In operation, the green LED of the display unit 250 is turned on according to the high signal output from the charge voltage control circuit rotary switch unit 225 to inform the user that the charging of the internal battery 300 is completed.

And, when charging the internal battery 300 in the home or car takes about 3 hours to charge.

As described above, after the charging of the internal battery 300 included in the portable multi-battery backup device is completed, the user carries and uses it.

That is, when a user uses a mobile phone, a portable audio device, or the like and the battery of the device is exhausted, the user needs to charge the external battery charging connector 400 of the portable multi-battery backup device using a power cable. To connect your phone or portable audio device.

Thereafter, the user selects the first charge selection switch unit 210 as the external battery charge and simultaneously sets the charge voltage setting rotary switch unit 220 to charge the external battery (for example, 4.2V (mobile phone), 2.8V (audio device) or 1.4V (audio device).

Then, the power charged in the internal battery 300 is charged for the external battery until the charging current blocking circuit unit 230 blocks the charging current according to the step-up operation of the internal battery charging circuit and the external battery charging lifting type chopper circuit unit 215. The battery of the external device connected to the connector 400 is charged.

In this case, the charging current blocking circuit unit 230 may receive a control signal (high signal) for blocking the charging from the charging voltage control circuit rotary switch unit 225 comparing the charging voltage set value set by the user with the charging voltage of the external battery. In operation, the green LED of the display unit 250 is turned on according to the high signal output from the charge voltage control circuit rotary switch unit 225 to inform the user that the charging of the external battery is completed.

In addition, when the external battery is charged using the internal battery 300, the charging time may be about 1 hour to 2 hours, and the external battery may be charged about 2.5 to 3 times, and may be performed by a mobile phone or an audio device. You can talk on the phone and use the device while charging the battery.

On the other hand, the above-described portable multi-battery backup device checks the state of charge of the internal battery 300 to inform the user when the internal battery 300 needs to be charged so that the internal battery 300 can be charged.

That is, as a result of the comparison between the voltage applied from the charging voltage control power supply circuit unit 235 and the internal battery charging request control circuit unit 245 comparing the charging voltage of the internal battery 300, the charging voltage control power supply circuit unit 235 is applied. When the charge voltage of the internal battery 300 is lower than the voltage, a low signal is output from the internal battery charge request control circuit 245 to the display unit 250, and the display unit 250 outputs from the internal battery charge request control circuit unit 245. According to the low signal, the red LED indicating the charging request of the internal battery 300 is turned on to inform the user that it is time to charge the internal battery 300.

As described above, according to the portable multi-battery backup device of the present invention, the portable battery backup device is charged at home or in a car, and then carried, regardless of the place of charging, to charge a battery of a mobile phone or a portable audio device. This prevents users from having to visit a battery charger where a battery charger is installed and charges the battery as usual, and finds a battery in a time when the battery is fully charged. There is an effect that can eliminate the inconvenience.

In addition, a phone battery and a device can be used while charging an external device through a portable battery backup device. Since the portable battery backup device is portable, there is an advantage in that it is easy to carry and is not limited to distance movement during charging.

Herein, while the present invention has been described with reference to the preferred embodiments, those skilled in the art will be able to vary the present invention without departing from the spirit and scope of the present invention as described in the following Utility Model Registration Claims. It will be understood that modifications and changes can be made.

Claims (4)

A power charging connector for connecting an external input power to charge an internal battery; A portable charging unit which controls to charge external power input through the power charging connector when the user selects the internal battery charge, and controls an output of an internally charged voltage to charge the external battery when the user selects the external battery charge; An internal battery built in the portable charging unit, charging an input voltage through the power charging connector according to the control of the portable charging unit, and outputting a charged voltage to the outside according to the control of the portable charging unit; And A portable multi-connector comprising an external battery charging connector configured to connect an external device requiring charging with a power cable to output an internal battery charging voltage output from the portable charging unit to an external device to charge an external battery. Battery backup device. According to claim 1, The portable charging unit, A surge protection and reverse polarity voltage protection circuit for protecting a circuit from surge voltage and reverse polarity voltage of an external input power input through the power charging connector to charge an internal battery; A first charge select switch unit configured to allow a user to select either an internal battery charge or an external battery charge; When the first charge selection switch unit is selected to charge the internal battery, the power input through the surge protection and reverse polarity voltage protection circuit unit is forced down to output the internal battery, and the first charge selection switch unit is configured to charge the external battery. An internal battery charging circuit and an external battery charging lifting type chopper circuit unit for boosting and outputting a voltage output from the internal battery charged through an external power source when selected; A charge voltage setting rotary switch unit configured to allow a user to select a charge voltage when selecting an internal battery or an external battery charge; Interlocked with the charging voltage setting rotary switch unit, and displays the control signal and the completion of the external battery charging by comparing the charging voltage set value set by the user and the charging voltage of the internal battery or external battery when the internal battery or external battery charging. A charge voltage control circuit rotary switch unit configured to output a display control signal; A charging current blocking circuit unit for blocking a charging current applied from the internal battery charging circuit and an external battery charging lifting type chopper circuit unit according to a control signal output from the charging voltage control circuit rotary switch unit; A charge voltage control power supply circuit unit configured to maintain and output a power applied from the internal battery charging circuit and the external battery charging lift type chopper circuit unit at a predetermined voltage according to the charging voltage set by the charging voltage setting rotary switch unit; A second charge selection switch unit linked to the first charge selection switch unit and connected to an internal battery or the connector for charging the external battery; An internal battery charge request control circuit unit for comparing a voltage applied from the charge voltage control power supply circuit unit with a charge voltage of an internal battery or an external battery and outputting a display control signal for completing or charging the internal battery; And The green light indicating the completion of charging of the external battery according to the display control signal output from the charging voltage control circuit rotary switch unit, and the completion or charging of the internal battery according to the display control signal output from the internal battery charging request control circuit unit A portable multi-battery backup device comprising a display unit which lights up green or red informing a request. The power supply charging connector according to claim 1, A portable multi-battery backup device, characterized in that for charging an internal battery with a DC power applied through the adapter by connecting an adapter converting the DC power into an external commercial AC power. The power supply charging connector according to claim 1, A portable multi-battery backup device, characterized in that for connecting the car cigar jack to charge the internal battery by the battery power of the vehicle is applied through the car cigar jack.