KR101620390B1 - The apparatus and method of smart power bank with hybrid charging - Google Patents

Abstract

The present invention relates to a hybrid charging method type portable smart power bank apparatus and a charging and discharging method through the same. According to the present invention, the hybrid charging method type portable smart power bank apparatus includes: a step (S200) of turning on a power switch; a step (S210) of checking a state of a charging battery unit; a step (S220) of examining the existence of an external provision power source of the charging battery unit and a suppliable power source of an external power source; a step (S230) of supplying the power source to a variable power source unit or to a fixed power source unit; a step (S240) of selecting the charging battery unit with the lowest number as the charging state of the examined charging battery unit when the variable power source unit is supplied with the power source; a step (S250) of determining the existence of a replaceable charging battery unit; a step (S260) of selecting the charging battery unit with the lowest number as the charging state of the examined charging battery unit when the power is supplied to the fixed power source unit; a step (S270) of determining the existence of the replaceable charging battery unit; and a step (S280) of driving an emergency power source mode in the microprocessor unit, thereby improving a lifespan of a battery.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hybrid smart charging type portable smart power bank device and a charging /

The present invention can be widely used for ships, outdoor theaters, camping grounds, construction sites, companies, homes, and military, and can charge electric devices to be charged while protecting them in the internal space, The present invention relates to a hybrid smart charging type portable smart power bank device capable of charging a rechargeable battery portion at high speed and a charging / discharging method using the same.

In the case of a portable rechargeable battery pack, which is mainly used in ships, outdoor theaters, and camping fields, the battery pack has a square box structure, and power is supplied to the electric devices by applying a power socket to the (+ .

However, the existing portable rechargeable battery pack has a problem that it causes a lot of malfunction of the device due to over current and over voltage when rainwater or foreign matter flows into the ground terminal and the connected electronic device because there is no external cover and protective cover.

In addition, since only fixed 5V and 12V are output at all times, there is a problem that a separate DC-DC converter or an AC-DC converter must be separately installed, and the output power is fixed, There was a narrow problem.

Most of all, portable rechargeable battery packs are manufactured as a fixed integral type. When the battery life expires due to the number of charge / discharge cycles and the battery charge capacity during long use, the rechargeable battery must be discarded without replacement of another rechargeable battery. It is becoming a main cause of environmental pollution.

Patent Registration No. 20-0458949 (issued on March 21, 2012)

In order to solve the above problems, the present invention provides a battery pack having a box shape and being formed by upper and lower lid hinge structures to be portable and strong, to be shock-resistant, And the power source charged in the rechargeable battery unit can be changed to a variable DC power source selected from any one of 5V, 9V, 12V, 19V and 24V, The present invention is directed to a portable smart power bank apparatus and method capable of outputting a customized 1: 1 customized battery power and improving battery life.

According to an aspect of the present invention, there is provided a portable smart power bank device comprising:

And a smart power bank device which is composed of upper and lower lid hinge structures to protect the connected electric devices in the internal space and receives power from the outside to charge the plurality of rechargeable batteries in a twin fashion of parallel charging and sequential charging,

The smart power bank device

A box-like main body 100 formed in a box shape and formed by upper and lower lid hinge structures to protect and support each device from external pressure,

A display unit 200 positioned on an outer surface of the box-shaped main body and displaying the driving state of each device and the state of the charged battery,

A power-bank-type power input unit 300 located at one side of the inner space of the box-shaped main body and receiving power from the outside to transmit power to the rechargeable battery unit,

A power bank type power source output unit 400 which is located on the other side of the inner space of the box type main body and supplies power charged in the rechargeable battery unit to the connected electric devices,

And a smart control unit 500 for controlling the overall operation of each device.

In addition, the charging method using the hybrid charging type portable smart power bank according to the present invention

A step S100 of turning on a power switch of the portable smart power bank device,

A step (S110) of checking the state of the rechargeable battery unit in the microprocessor unit,

A step (S120) of checking whether the external power supply is available or not through the power input unit for power banking and the supplyable power of the external power supply,

(S130) of sensing the power input unit for the power bank in the microprocessor unit and sending an output signal to the simultaneous charge mode if the power supply of the external input power source is sufficient,

If the output voltage of the rechargeable battery unit is equal to or higher than the maximum charge voltage Vcmax and the current is equal to or less than the minimum charge current Icmin, the microprocessor unit closes the input power switch to stop charging the rechargeable battery pack (S140)

And when the charging of all the rechargeable battery units is completed in the microprocessor unit, the charging mode is released and the process returns to the standby mode (S150).

In addition, the discharging method using the hybrid charging type portable smart power bank according to the present invention

A step S200 of turning on the power switch of the portable smart power bank device,

A step (S210) of checking the state of the rechargeable battery unit in the microprocessor unit,

A step S220 of checking whether the external power source of the rechargeable battery unit is present and the external power source capable of supplying power,

A step S230 of supplying power to the variable power source when the load is applied to the variable power source in the microprocessor and supplying power to the fixed power source if the load is applied to the fixed power source,

A step (S240) of selecting a lowest-numbered rechargeable battery unit as a charged state of the inspected rechargeable battery unit when power is supplied from the microprocessor unit to the variable power source unit,

A step S250 of checking the output voltage and the output current of the rechargeable battery in the microprocessor and determining whether the output voltage is equal to or less than the optimal discharge cutoff voltage Vdopt,

A step (S260) of selecting the lowest number of rechargeable battery units in the charged state of the recharged battery unit when the power is supplied from the microprocessor unit to the fixed power source unit,

A step S270 of checking the output voltage and the current of the rechargeable battery unit in the microprocessor unit and then determining the presence or absence of the rechargeable battery unit if the output voltage is equal to or less than the optimal discharge cutoff voltage Vdopt;

And driving the emergency power mode in the microprocessor (S280).

INDUSTRIAL APPLICABILITY As described above, according to the present invention, it is possible to easily carry the battery, to be strong against impact, to charge while protecting the electric device while moving, and to standardize the rechargeable battery part with the pack structure, , The rechargeable battery can be stored and transported in a portable manner and can be compatible with other electronic devices to supply the battery power and can be supplied with electric power through the variable DC power source selected by 5V, 9V, 12V, 19V or 24V It can be used for ships, outdoor theaters, camping sites, construction sites, companies, homes, military use, and smart charging mode and 4-channel 4 terminal network type fast charging. Combined hybrid fast charge method can shorten the charge time from 10 minutes to 20 minutes compared to conventional ones, It can be controlled to charge up to 4.2V by the twin type of series charging and sequential charging, and it can be controlled to discharge to 2.9V, so that the battery life can be improved by 80% .

FIG. 1 is a perspective view showing an external appearance of a hybrid charging type portable smart power bank device 1 according to the present invention,
FIG. 2 is a block diagram showing components of a hybrid charging type portable smart power bank device 1 according to the present invention,
FIG. 3 is a configuration diagram showing the components of a hybrid charging type portable smart power bank device 1 according to the present invention,
FIG. 4 is a perspective view illustrating a hybrid charging type portable smart power bank device according to the present invention formed in an open structure; FIG.
5 is a block diagram illustrating components of a power bank type power input unit according to the present invention.
6 is a block diagram showing components of a power bank type power supply output unit according to the present invention,
FIG. 7 is a block diagram showing the components of the variable power source unit according to the present invention,
8 is a block diagram illustrating components of the fixed power unit according to the present invention,
FIG. 9 is a block diagram illustrating components of a smart control unit according to the present invention.
10 is a block diagram showing the components of the microprocessor according to the present invention,
FIG. 11 is a diagram illustrating an embodiment in which power is supplied from an external source through a power-bank-type power input unit according to an embodiment of the present invention,
FIG. 12 is a view showing an embodiment in which the power charged in the rechargeable battery unit is received through the power bank type power supply output unit according to the present invention,
FIG. 13 is a block diagram showing components of a four-channel four-terminal charging circuit according to the present invention,
FIG. 14 is a graph showing the relationship between the charging voltage Vcmax and the charging start voltage Vcstart, which is set at 4.1 V and 3.3 V, respectively, in the smart charging mode according to the present invention. A graph showing that charging is stopped when the minimum charging current Icmin value is set to 2.5 V and the amount of current supplied to the charging battery unit falls to 2.5 V or less which is the minimum charging current Icmin value,
15 is a graph showing charging the battery charge voltage to 4.2 V through the mart discharge mode according to the present invention and discharging the battery discharge voltage to 2.9 V,
FIG. 16 is a flowchart showing a charging method using a hybrid charging type portable smart power bank according to the present invention,
17 is a flowchart showing a discharging method through a hybrid charging type portable smart power bank.

First, the fast charging described in the present invention is performed in a hybrid manner.

Here, the hybrid system is a combination of a smart charging mode in which charging is started when the output voltage of the rechargeable battery unit becomes equal to or lower than the charging start voltage Vcstart, and a rapid charging in a 4-channel 4-terminal network system.

That is, when the output voltage of the rechargeable battery unit becomes equal to or lower than the charge start voltage (Vcstart) of 3.3 V in the smart recharge mode, charging starts. When the charge start signal is transmitted to the 4-channel 4-terminal recharging circuit unit, So that the rechargeable battery unit is rapidly charged by the four-channel four-terminal network system.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an external view of a hybrid smart charging type portable smart power bank device 1 according to the present invention, and FIG. 2 is a perspective view of a hybrid smart charging type portable smart power bank device 1 according to the present invention. FIG. 3 is a block diagram showing components of a hybrid charging type portable smart power bank device 1 according to the present invention, which is composed of upper and lower cover hinge structures And is configured to rapidly charge a plurality of rechargeable batteries in a twin fashion of parallel charging and sequential charging while receiving the power from the outside while protecting the connected electric devices in the internal space.

A display unit 200, a power bank type power source input unit 300, a power bank type power source output unit 400, and a smart control unit 500. The box type main body 100 includes a box type main body 100, a display unit 200,

First, the box-like main body 100 according to the present invention will be described.

The box-like main body 100 is formed in a box shape and has upper and lower lid hinge structures to protect and support each device from external pressure.

As shown in FIGS. 2 and 4, the upper box-shaped cover 110 and the lower box-shaped cover 120 constitute a hinge 130 between the upper box-shaped cover and the lower box-shaped cover, And a fitting portion 140 on the upper surface.

A display unit is formed on the outer surface, a power bank type power input unit is formed on one side of the outer side, a power bank type power output unit is formed on the other side of the outer side, and a smart control unit is included on one side of the inner space.

The box-like body according to the present invention is operated with an open structure for opening the cover and a closed structure for closing the cover.

In addition, when the battery pack is opened in an open structure, the charging battery unit is detachably installed inside the inner cover 150 on both sides of the inner space.

Also, a pouch bag 160 is formed on one side of the inner space of the upper box-shaped cover, and the electronic device to be connected to the rechargeable battery is protected by an external impact and stored therein.

The rechargeable battery unit according to the present invention is formed in a rectangular shape like a video diskette shape, and is installed on the inner cover detachably.

In addition, the box-like body according to the present invention can use thermoplastic polyurethane, polyester and lightweight, durable glass fiber reinforced plastic or carbon fiber reinforced plastic material,

More preferably, polyacetal resin which is an engineering plastic is used which is prepared by adding glass fiber and carbon.

Specifically, a box-shaped body is injection-molded using a composition composed of 20 to 50 wt% of a polyacetal resin as an engineering plastic, 49 to 79 wt% of glass fibers, and 0.1 to 1 wt% of carbon,

The polyacetal resin is dried at 110 to 130 ° C. for 3 to 5 hours before injection molding, and injection-molded at an injection temperature of 190 to 220 ° C., an injection pressure of 100 to 110 Mpa, and a mold temperature of 50 to 65 ° C. .

The polyacetal polymer is a crystalline polymer having two types of homopolymers and copolymers, and has excellent endurance, creep resistance and low coefficient of friction among plastic materials. The homopolymer is produced from formaldehyde as raw material, has high tensile strength and bending strength, and is excellent in endurance and hardness. Also, it has low abrasion resistance and excellent abrasion resistance, heat resistance and water resistance.

When the amount of the polyacetal resin used is less than 20 wt%, molding of the box-shaped body is not properly performed. When the amount exceeds 50 wt%, the content of the other components is relatively reduced and physical properties such as durability are deteriorated. The amount of the polyacetal resin used is preferably limited within a range of 20 to 50 wt% of the total composition.

The glass fibers are _{SiO 2 52 ~ 75.5wt%, Al} 2 O 3 0.5 ~ 23.8wt%, CaO 0.01 ~ 25wt%, MgO 0.5 ~ 10.3wt%, B 2 O 3 0.01 ~ 21.8wt%, Na 2 O + K ₂ O select any one from among 0.27 ~ E-glss, with 18wt% of the chemical composition C-glass, AR-glass, S-glass, D-glass, use, and wherein the proportion of glass fiber was 2.57, the softening temperature 850 ℃ , A dielectric constant (1 MHz 22 ° C) of 6.70, a thickness of 1.11 to 1.20 mm, a weight of 920 to 998.1 g / m 2, a tensile strength of 755.4 to 816.3 kg / inch and an elongation of 4.0 to 4.8%.

When the amount of the glass fiber used is less than 49 wt%, the tensile strength and the bending strength are lowered. When the glass fiber exceeds 79 wt%, molding of the box-type body may not be easy. Of the total weight of the composition.

When the amount of the carbon is less than 0.1 wt%, the function as an auxiliary agent for improving the physical properties is insignificant. When the amount of the carbon is more than 1 wt%, the carbon is not smoothly formed, There is a problem that the box-like body is not produced. Therefore, the amount of the carbon used is preferably in the range of 0.1 to 1 wt% of the whole composition.

The composition ratio of the composition is exemplified by 30 wt% of polyacetal resin, 69.7 wt% of glass fiber, and 0.3 wt% of carbon.

In addition, a box-like body can be manufactured using glass fiber reinforced plastic.

That is, it is preferable that 10 to 50 wt% of the vinyl ester resin is impregnated with 70 to 90 wt% of glass fiber, and more preferably, the blend ratio of 70 wt% of the E-glass glass fiber and 30 wt% of the vinyl ester resin is maintained.

The vinyl ester resin is superior in chemical resistance and resistance at high temperatures to polyester resins, and is more easily produced than polyester resins and epoxy resins.

If the amount of the vinyl ester resin used is less than 10 wt%, it may cause problems in the formation of the body of the glass fiber-reinforced plastic. When the amount exceeds 50 wt%, the glass fiber used may decrease in the durability, The vinyl ester resin is preferably used in a range of 10 to 50 wt% with respect to the total content of the glass fiber reinforced plastic.

The glass fiber used is the same as the glass fiber added to the polyacetal resin. When the amount of the glass fiber used is less than 70 wt%, the tensile strength and the bending strength are lowered. When the amount exceeds 90 wt% The amount of the glass fiber used is preferably in the range of 70 to 90 wt% of the total composition.

The composition ratio of the composition is exemplified by 30 wt% of vinylester resin and 70 wt% of glass fiber.

Next, the display unit 200 according to the present invention will be described.

The display unit 200 is positioned on the outer surface of the box-shaped main body and serves to display the driving state of each device and the state of the rechargeable battery.

It consists of an LCD monitor window.

The display unit includes a key input unit on one side.

Next, a power-bank-type power input unit 300 according to the present invention will be described.

As shown in FIG. 11, the power-bank-type power input unit 300 is located at one side of the inner space of the box-shaped main body and receives power from the outside to transmit power to the rechargeable battery unit.

As shown in FIG. 5, the first AC-DC converter 310, the first DC-DC converter 320, the power divider 330, and the input power switch unit 340 are formed.

The first AC-DC converter 310 converts the transmitted AC power into a charging DC power.

It consists of an AC-DC converter IC.

Here, the AC-DC converter IC has AC 110V / 220V ± 20%, 50 / 60Hz input voltage, 50-60 Hz frequency range, realizes a small and lightweight power supply circuit without transformer, Directly input current, minimizing current consumption to 0.1mA at no load, achieving 1% constant voltage stability, realizing 5% load stability, circuit driving up to 4mA on Idrv (5 pin), built-in overvoltage protection circuit , Standard 8-pin SOP packet paper, and minimizes standby power to less than 0.1W at no load.

The first DC-DC converter 320 converts power from a cigar jack for a vehicle, a solar generator, and a wind turbine generator to a charging power source.

This is configured by selecting either a buck converter, a boost converter, a forward converter, or a flyback converter.

The buck converter is a step-down converter and is used in a circuit in which the input and output terminals share the same ground. Using a switching device (switching on / off repeatedly) to switch at regular intervals, the input power is disconnected while the switch is turned on and connected to the circuit. The DC voltage is output by smoothing (averaging) the pulsed voltage, which is periodically connected and disconnected, through the LC filter.

The booster converter is also referred to as a step-up converter and comprises a circuit that can be used when the input and output stages are grounded. That is, while the switch is on, the input power is connected to both ends of the inductor to charge the current, and when the switch is off, the charged current is transferred to the load side filter.

The forward converter is a voltage source type converter, and is composed of a circuit that is electrically insulated between input and output using a high frequency transformer between an input terminal and an output terminal. Further, two or more windings are applied to the secondary side of the transformer to constitute a multiple output power source.

The flyback converter is an isolated version of the transformer of a boost converter. The magnetizing inductance component of the transformer is used as a boost inductor. When the switch is turned on, the magnetizing inductance of the transformer is charged. When the switch is turned off, The output voltage of Vo = N * D * Vi / (1-D) is generated as the current of the transformer is passed to the secondary side of the transformer. It has the characteristics of a circuit with the smallest number of components, which is I / O insulated.

The power divider 330 distributes power received from the first AC-DC converter and the first DC-DC converter to the rechargeable battery unit.

The input power switch unit 340 is driven in accordance with the control signal of the smart control unit to switch on / off the power to the power distributor to be transmitted to the rechargeable battery unit.

In addition, the power bank type power input unit 300 according to the present invention is a high-speed charging apparatus that includes a four-channel four-terminal charging circuit unit 350 for rapidly charging electric power from a vehicle cigar jack, a solar generator, .

The four-channel four-terminal charging circuit unit 350 is disposed at one side of the inner space of the box-like main body, is driven when a charge start signal of the microprocessor unit is input, converts the cigar jack into a charging power source through the first DC- It uses the electric power of photovoltaic generator and wind power generator to rapidly charge the rechargeable battery part by 4 channel 4 terminal network type.

As shown in FIG. 13, the power control unit 351 includes a power control unit 351, a charge control unit 352, and a four terminal network control board unit 353.

The power control unit 351 controls the electric power of the cigar jack, the solar generator, and the wind power generator of the vehicle, which are converted into the charging power through the first DC-DC converter, This is a DC / DC converter unit, a buffer unit, a first D / A converter unit, an amplifier unit, and a DAR transistor.

The charge control unit 352 receives the power converted by the power control unit and sends a wakeup drive signal to the 4-terminal network control board unit and the rechargeable battery unit, The input voltage, the input current, the output voltage, and the output voltage are read, and the detection and calculation processing by the 4-terminal network is performed. Then, sampling is performed at the reference set value at the timing set to charge the rechargeable battery unit by the 4- And controls the charging of the four-channel battery power supply module sequentially through four channels.

The 4-terminal network control board unit 353 is connected to the positive terminal and the negative terminal of the rechargeable battery unit and reads the input voltage, the input current, the output voltage, and the output voltage of the rechargeable battery unit, And then transmits an 8-bit digital signal regarding the input voltage, the input current, the output voltage, and the output voltage of the rechargeable battery unit to the charge control unit.

As described above, the four-channel four-terminal charging circuit unit 350 according to the present invention is included in the power-bank-type power input unit 300, so that when the charging battery unit is charged using electricity from a cigar jack, a solar generator, The charging time can be shortened to 10 minutes to 20 minutes compared with the conventional method.

Next, the power bank type power supply output unit 400 according to the present invention will be described.

As shown in FIG. 12, the power-bank-type power source output unit 400 is located at the other side of the inner space of the box-shaped main body, and receives the power charged in the rechargeable battery unit and outputs the power to the connected electric device.

As shown in FIG. 6, the variable power source unit 410 and the fixed power source unit 420 are configured.

[Variable Power Supply Unit 410]

The variable power supply unit 410 varies the power charged in the rechargeable battery unit to a variable DC power selected by 5V, 9V, 12V, 19V, or 24V according to the control signal of the smart controller, 1: 1 customized output.

As shown in FIG. 7, the first DC-DC converter 411, the second DC-DC converter 412, the first power stabilizer 413, and the variable power switch 414 constitute a first DC-AC converter 411.

The first DC-AC converter 411 serves to convert the power output from the rechargeable battery unit to AC power.

It is composed of either a voltage type inverter used as a DC voltage source or a current type inverter used as a DC current source.

The voltage-type inverter is configured by using an LC filter in order to reduce pulsation of the output of the AC-side converter when using an AC power source, in which the voltage is controlled in the converter section when the control method is PAM control, In case of PWM control, the DC voltage rectified by the converter is controlled by the inverter at the same time. In addition, the control circuit and the theory are relatively simple, and the characteristics that are mainly used for the small and medium capacity are satisfied. I have.

The current type inverter is constructed using a reactor L instead of a smoothing capacitor at both ends of the DC link. It is capable of 4-phase operation, simple current circuit, no need for high-speed THYRISTOR, it is not pull-out because current is limited, can be operated at low speed even when overloaded, And it can be used for capacitive load in addition to inductive load. The utilization factor of the switching device and the output transformer is high, and the starting torque is large like a strong voltage source is applied with a constant current characteristic.

The second DC-DC converter 412 converts the power output from the rechargeable battery unit into a variable DC power source selected from any one of 5V, 9V, 12V, 19V, and 24V.

This is configured by selecting either a buck converter, a boost converter, a forward converter, or a flyback converter.

The first power stabilizer 413 serves to supply stabilized power set to the reference power source to each device when the connection between the variable power source switch and the rechargeable battery unit is replaced or only the rechargeable battery unit is detachably replaced .

It consists of a large capacity battery (capacitor) and a power control circuit.

The variable power switch 414 receives the on / off command signal from the smart control unit and opens / closes the connection with the rechargeable battery unit.

It consists of an electronic switch.

[Fixed Power Supply Unit (420)]

The fixed power unit 420 is configured to fix a power source charged in the rechargeable battery unit to a predetermined reference power source according to the control signal of the smart control unit and output only the reference power source to the connected electric device.

As shown in FIG. 8, the third DC-DC converter 421, the second power stabilizer 422, and the fixed power switch 423 are constituted.

The third DC-DC converter 421 converts the power output from the rechargeable battery unit to a predetermined reference power source.

This is configured by selecting either a buck converter, a boost converter, a forward converter, or a flyback converter.

The second power ballast 422 serves to supply a stabilized power set to the reference power source to each device when the connection between the fixed power switch and the rechargeable battery unit is replaced or only the rechargeable battery unit is detachably replaced .

It consists of a large capacity battery (capacitor) and a power control circuit.

The fixed power switch 423 receives the on / off command signal from the smart control unit and opens / closes the connection with the rechargeable battery unit.

It consists of an electronic switch.

Next, the smart control unit 500 according to the present invention will be described.

The smart control unit 500 controls the overall operation of each device.

9, comprises an input unit 510, a memory unit 520, a microprocessor unit 530, and an output unit 540.

First, the input unit 510 according to the present invention will be described.

The input unit 510 is connected to the rechargeable battery unit and receives the input current value, the input voltage value, the output current value, and the output voltage value of the rechargeable battery unit, and transmits the input current value, the output current value, and the output voltage value to the microprocessor unit.

Second, the memory unit 520 according to the present invention will be described.

The memory unit 520 stores programs and data related to the overall operation of the smart power bank apparatus.

Third, the microprocessor unit 530 according to the present invention will be described.

The microprocessor unit 530 checks the state of the rechargeable battery unit according to the input current value, the input voltage value, the output current value, and the output voltage value of the rechargeable battery unit received from the input unit and outputs an output signal to the output unit, The rechargeable battery is controlled to charge up to 4.2V at high speed in a twin fashion of parallel charging and sequential charging, and controls to discharge to 2.9V.

As shown in FIG. 10, the power bank history management mode 531, the emergency power mode 532, and the screen display control mode 533 are configured.

The power bank history management mode 531 calculates and stores the charging power amount and the discharging power amount based on the input current value, the input voltage value, the output current value, and the output voltage value of the rechargeable battery unit received from the input unit.

This counts and records the number of charge / discharge cycles of the rechargeable battery unit in a pack unit.

The emergency power mode 532 checks the remaining capacity of the rechargeable battery unit and supplies emergency power to the variable power unit and the fixed power unit based on the checked capacity.

For example, when the power of the removable rechargeable battery unit is exhausted, power is supplied to the variable power unit and the fixed power unit at the same time using the emergency power capacity remaining in the removable rechargeable battery unit and the power capacity of the fixed rechargeable battery unit, The charging capacity of the battery unit is expressed.

The screen display control mode 533 controls the driving state of each device and the state of the rechargeable battery to be outputted to the display unit side.

It consists of an LCD monitor window.

In addition, the microprocessor unit 530 according to the present invention includes a smart charging mode 534 for starting charging when the output voltage of the charging battery unit becomes lower than the charging start voltage Vcstart.

That is, when the charge capacity of the rechargeable battery unit is 50% or more, the voltage of the rechargeable battery unit rises above 4.1 V, making it difficult to accurately measure the charge capacity.

14, in the smart charging mode 534 according to the present invention, the charging maximum voltage Vcmax of the rechargeable battery unit is set to 4.1 V, the charging start voltage Vcstart is set to 3.3 V, When the voltage reaches 3.3V, charging is started. When the minimum charging current (Icmin) value is set to 2.5V and the amount of current supplied to the charging battery unit falls below 2.5V, which is the minimum charging current (Icmin) value, charging is stopped.

In the smart charging mode, when the output voltage of the rechargeable battery unit becomes equal to or lower than the charging start voltage (Vcstart), the charging start signal is output to the four-channel four-terminal charging circuit unit.

In addition, the microprocessor unit 530 according to the present invention includes a smart discharge mode 535 for discharging up to about 20% of the battery capacity and discharging remaining power for emergency.

That is, the output voltage of the rechargeable battery unit is measured and the discharge is cut off at the optimum discharge cutoff voltage Vdopt before reaching the overdischarge voltage Vdmin.

When the rechargeable battery section is constituted by a lithium ion battery, Vdopt becomes about 2.9V.

In the case of a lithium secondary battery, use between 20% and 80% of the total charging capacity can be used for a long period of time.

Accordingly, the smart discharge mode 535 according to the present invention charges the battery charge voltage up to 4.2 V and discharges the battery discharge voltage to 2.9 V, as shown in FIG.

Fourth, the output unit 540 according to the present invention will be described.

The output unit 540 is connected to a display unit, a power bank type power source input unit, a power bank type power source output unit, and a rechargeable battery unit. The output unit 540 includes a display unit, a power bank type power source input unit, , And outputs an output signal to the rechargeable battery section.

Hereinafter, a charging method using the portable smart power bank of the hybrid charging type according to the present invention will be described.

[ Of the rechargeable battery  Charging process]

First, as shown in FIG. 16, the power switch of the portable smart power bank device is turned on (S100).

Next, the state of the rechargeable battery unit is checked by the microprocessor unit (S110).

At this time, the state of charge of the rechargeable battery unit previously stored in the memory unit and the output voltage of the rechargeable battery unit are measured to check the state of charge.

Next, the power supply input unit for power banking checks whether the external power supply is present or not and whether the external power supply is available (S120).

Next, the microprocessor unit senses the power input unit for the power bank, and sends an output signal to the simultaneous charge mode if the power supply of the external input power source (for example, power source of the powerhouse) is sufficient. That is, the input power switch is closed (closed) to all the rechargeable battery units requiring charging to start charging (S130).

Next, the microprocessor unit senses the power input unit for the power bank, and if the supply power of the external input power (for example, the power of the power generation unit) is insufficient, the output signal is sent to the sequential charge mode (S140).

That is, a 1: 1 close (closing) power is sequentially supplied to a part of the rechargeable battery unit requiring charging in a customized manner by the input power switch to start charging.

Next, when the state of the rechargeable battery unit is checked by the microprocessor unit and the output voltage of the rechargeable battery unit is equal to or higher than the maximum charge voltage Vcmax and the current is lower than the minimum charge current Icmin, the input power switch is closed to charge the rechargeable battery pack (S150).

Finally, when charging of all the rechargeable battery units is completed in the microprocessor unit, the charging mode is released and the standby mode is returned (S160).

Hereinafter, a discharging method using the hybrid charging type portable smart power bank according to the present invention will be described.

[ Of the rechargeable battery  Discharge process]

First, as shown in Fig. 17, the power switch of the portable smart power bank device is turned on (S200).

Next, the state of the rechargeable battery unit is checked by the microprocessor unit (S210).

At this time, the state of charge of the rechargeable battery unit previously stored in the memory unit and the output voltage of the rechargeable battery unit are measured to check the state of charge.

Next, the external power supply presence / absence state of the rechargeable battery unit and the supplyable power supply of the external power supply are inspected (S220).

Next, in step S230, the microprocessor unit supplies power to the variable power unit when a load is applied to the variable power unit, and supplies power to the fixed power unit when a load is applied to the fixed power unit.

Next, when the microprocessor unit supplies power to the variable power unit, the lowest-numbered rechargeable battery unit is selected as the charged state of the recharged battery unit (S240).

Then, the electronic switch connected to the rechargeable battery unit is closed to supply power to the variable power source unit.

Next, the microprocessor examines the output voltage and the output current of the rechargeable battery, and then determines whether the rechargeable battery is present if the output voltage is equal to or less than the optimal discharge cutoff voltage (Vdopt) (S250).

That is, if there is a rechargeable battery unit to be replaced, the switch is closed with the rechargeable battery unit to supply power to the variable power source unit.

Next, when the microprocessor unit supplies power to the fixed power unit, the lowest-numbered rechargeable battery unit is selected as the charged state of the recharged battery unit (S260).

That is, the electronic switch connected to the rechargeable battery unit is closed to supply power to the fixed power unit.

Next, the microprocessor examines the output voltage and the current of the rechargeable battery, and determines whether the rechargeable battery is present if the output voltage is equal to or less than the optimal discharge cutoff voltage (Vdopt) (S270).

That is, if there is a rechargeable battery unit to be replaced, the switch is closed to the rechargeable battery unit to supply power to the fixed power source unit.

Finally, the microprocessor unit drives the emergency power mode (S280).

That is, if there is no spare rechargeable battery, the emergency power mode is entered.

And warns the user through the display unit that the power of the rechargeable battery unit is insufficient.

Then, both the stationary rechargeable battery unit and the removable rechargeable battery unit are connected to supply power to the variable power source unit and the fixed power source unit.

For example, since the detachable rechargeable battery unit is used only up to the optimum discharge cut-off voltage Vdopt, an extra power of about 20% remains.

1: portable smart power bank device 100: box-type main body
200: display unit 300: power bank type power input unit
400: Power bank type power output unit 500: Smart control unit

Claims (1)

A step S200 of turning on the power switch of the portable smart power bank device,
A step (S210) of checking the state of the rechargeable battery unit in the microprocessor unit,
A step S220 of checking whether the external power source of the rechargeable battery unit is present and the external power source capable of supplying power,
A step S230 of supplying power to the variable power source when the load is applied to the variable power source in the microprocessor and supplying power to the fixed power source if the load is applied to the fixed power source,
A step (S240) of selecting a lowest-numbered rechargeable battery unit as a charged state of the inspected rechargeable battery unit when power is supplied from the microprocessor unit to the variable power source unit,
A step S250 of checking the output voltage and the output current of the rechargeable battery in the microprocessor and determining whether the output voltage is equal to or less than the optimal discharge cutoff voltage Vdopt,
A step (S260) of selecting the lowest number of rechargeable battery units in the charged state of the recharged battery unit when the power is supplied from the microprocessor unit to the fixed power source unit,
A step S270 of checking the output voltage and the current of the rechargeable battery unit in the microprocessor unit and then determining the presence or absence of the rechargeable battery unit if the output voltage is equal to or less than the optimal discharge cutoff voltage Vdopt,
And a step (S280) of driving the emergency power mode in the microprocessor unit.

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