KR20110033757A - Battery recovery/charging system - Google Patents

Abstract

PURPOSE: A battery regenerating/charging system is provided to prevent sulfate adherence to a battery plate and to realize the improvement of the battery performance, lifetime extension, and stabilization by removing adhered sulfate. CONSTITUTION: A battery regenerating/charging system includes a common power input unit(20), a charge unit(40) which charges the battery(1) using the voltage generated from the common power input unit, a discharge unit(70) for discharging the battery, a regeneration unit(50) for removing sulfonation of the battery by generating peak pulse to 20~30 KHz, and a microcomputer(60) for controlling the operation of the charge unit, the regeneration unit, and the discharge unit by sensing the voltage of the battery, cold cracking current, battery internal resistance and input voltage provided from the common power input unit.

Description

Battery Regeneration / Charge Device {BATTERY RECOVERY / CHARGING SYSTEM}

The present invention relates to a battery regeneration / charging device.

In general, a battery is composed of a positive electrode plate (PbO ₂ ), a negative electrode plate (Pb), and an electrolyte (H ₂ SO ₄ ) to convert the chemical energy contained in the active material into electrical energy using an electrochemical action.

In addition, the discharge reaction is a process in which lead dioxide of the positive electrode and lead of the negative electrode become lead sulfate.

The chemical formula is PbO₂ + Pb + 2HSO₄ + 2H → 2PbSO₄ + 2H₂O

The charging reaction is the process of returning lead sulfate to lead at the anode and lead dioxide to the cathode.

The chemical formula is 2PbSO₄ + 2H₂O → Pb + PbO₂ + 2H₂SO₄

The reaction sheet is cathode: PbSOb + 2e → Pb + SO₄², anode: PbSO₄ + 2H₂O → PbO₂ + 4H + SO ₄ + 2e.

Such a battery has a low specific gravity due to the generation of water by combining sulphate (SO ₄ ) with the electrode at the time of discharge, and the combined sulphate returns to the electrolyte during charging to increase the specific gravity and actively activate the chemical reaction.

However, since the sulphate bonded to the electrode during discharge during charge / discharge cycles in the battery does not drop even after charging and discharging, the sulfate remains to form an insulating layer.

At this time, as the number of charge / discharge cycles of the battery increases, sulfate accumulates excessively on the surface of the electrode, the passage of chemical / electrical reactions is blocked, and the electrical energy storage capacity is degraded. As a result, about 400 cycles can be used to reach the end-of-discharge voltage and can no longer be used for disposal.

Due to this sulphation, the performance is significantly reduced and the early disposal of the battery for less than 6 to 9 years of service life, with a 1000-cycle life of the plate, leads to waste of budget and serious environmental pollution. There was a problem in that the emergency equipment and the combat equipment was not immediately operated.

The present invention has been proposed to solve the above problems, an object of the present invention is to remove the sulfate accumulated in the battery electrode to extend the life of the battery, to activate the battery chemistry to charge the battery performance is improved It is an object of the present invention to provide a battery regeneration / charging device.

The battery regeneration / charging device according to the present invention comprises a commercial power input unit to which commercial power is input; A charging unit charging the battery using the voltage generated by the commercial power input unit; A discharge unit for discharging the battery; A regeneration unit for supplying a regeneration pulse to the battery by using the voltage generated by the commercial power input unit to remove sulfate generated in the battery; And regulating the operation of the charging unit and the discharging unit by sensing a voltage of the battery, a cold cranking current of the battery, an internal resistance of the battery, a signal for determining a short state of each cell, and an input voltage provided from the commercial power input unit. It may include a microcomputer to control wealth.

According to the present invention, it is possible to extend the life of the battery by removing the sulfate accumulated in the battery electrode, and activate the battery chemistry to determine the health state of the battery (HEALTH: state of charge, state of electrode, activation state of electrolyte, etc. ), There is an advantage to improve.

In addition, it uses solar power during the day and commercial power at night to supply power for battery regeneration and charging, and analyzes the battery's cold cranking current and internal resistance to judge the sulfate fixation of the battery. And the fixed sulfate can be removed through discharge.

Therefore, the present invention is a very useful invention that can prevent the sulphate sticking of the battery plate and remove the sulphate stuck to achieve improved battery life, longer life and stabilization.

In addition, the present invention has another excellent effect that can provide the sales using the rental period as well as the sale of the product through the function of the microcomputer.

1 is a functional block diagram showing the configuration of a battery regeneration / charging device according to an embodiment of the present invention.
Figure 2 is a functional block diagram showing the configuration of the microcomputer of the battery regeneration / charging device according to FIG.
3 is a block diagram showing another configuration of a microcomputer among the battery regeneration / charging device according to FIG. 1.
4 is a view showing the waveform of the battery regeneration / charging device regeneration pulse according to FIG.

The following detailed description of specific embodiments provides several descriptions of specific embodiments of the present invention. However, the present invention can be implemented in many different ways, which are defined and covered by the claims. The detailed description is described with reference to the drawings, wherein like reference numerals refer to the same or functionally similar elements.

The terminology used in the description provided herein is for the purpose of describing particular embodiments of the invention only and should not be construed as limiting or limiting the invention to any particular method. Furthermore, embodiments of the present invention may include a number of novel features which are necessary to represent the overall desirable properties of the invention or to practice the invention provided herein.

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

1 and 2, the embodiment according to the present invention includes a commercial power input unit 20, charging unit 40, regeneration unit 50, the microcomputer 60 and the discharge unit 70, The apparatus may further include a solar power input unit 10 and a selector 30.

The commercial power input unit 20 provides the commercial power input to the charging unit 40.

The charging unit 40 charges the battery 1 using the voltage generated by the commercial power input unit 20.

On the other hand, the discharge unit 70 discharges the battery 1.

Then, the regeneration unit 50 generates a peak pulse of 20 ~ 30KHz using the voltage generated by the commercial power input unit 20 to provide to the battery 1 to remove the sulfate.

Meanwhile, the microcomputer 60 detects the voltage of the battery 1, the current, the cold cranking current of the battery 1, the internal resistance of the battery 1, and the input voltage provided by the commercial power input unit 20 to charge the battery 40. ), The operation of the regeneration unit 50 and the discharge unit 70 can be controlled.

In addition, the microcomputer 60 further includes a usage period setting unit 67 and a lock function processing unit 68 as shown in FIG. 3.

The usage period setting unit 67 stops the operation after the operation for a predetermined period.

In addition, the lock function processor 68 may restore the suspended playback and charging function through the usage period setting unit 67 according to a preset input. In general, the lock function processing unit 68 may be implemented through a password function. In addition, the function of the lock function processing unit 68 may be provided by inputting a password according to the number in advance and providing a corresponding password.

On the other hand, the solar power input unit 10 absorbs sunlight and provides power converted into electrical energy by the photovoltaic effect.

The selector 30 selects an input power input from the solar power input unit 10 and the commercial power input unit 20 and provides the input power to the charging unit 40 or the regeneration unit 50.

First, the present invention has a cable connection jack (not shown) for connecting to the external battery (1) is installed, on one side display unit (not shown) for displaying the state of charge in% and judging the playback state displayed in% Overcharge protection circuit and test function to judge battery regeneration, charging and disposal are installed, and reverse polarity and short circuit protection function, circuit diagnosis function, output short protection, output reverse polarity protection, overload overcharge protection, overheat protection Cooling fan operation, automatic cut off function, power off function of regeneration charger when regeneration is completed, turbo charge function, recharging time control function, regeneration test function when charging and regeneration is not possible due to low battery power.

Here, the solar power input unit 10 may be provided with a booster 11 for boosting the voltage when the solar voltage is a low reference voltage.

The booster 11 may maintain a constant voltage at all times even if the solar input voltage changes according to weather and time zone. At this time, the boosted voltage of the booster 21 is preferably a DC voltage of 13 ~ 15V or 26 ~ 30V.

In addition, the solar power input unit 10 may be connected to a solar module including a light collecting plate (not shown) in which a plurality of solar cells are arranged.

Here, an advantage of the solar module is that if the solar output voltage is lower than the rated voltage of the battery 1, the charge is greater than the minimum input allowable voltage, so that the necessary voltage can be generated even when the incident amount of sunlight is minute.

Therefore, by storing the surplus voltage higher than the nominal voltage to efficiently supply the battery 1 at a time when the solar incident rate is relatively low, it is possible to maximize energy efficiency and charging efficiency.

In addition, the commercial power input unit 20 may be provided with an adjusting unit 21 for adjusting the voltage of commercial power. At this time, the voltage dropped by the adjusting unit 21 is preferably a DC voltage of 13 to 15V or 26 to 30V. That is, the adjusting unit 21 drops the voltage of the input power source to match the rated voltage of the battery 1.

In addition, the selector 30 may compare the voltages of the commercial power input unit 20 and the solar power input unit 10 as a switching means and select any one of the input voltages. At this time, when the voltage value setting unit 31 selects 12V or 24V, and the voltage of the input power supply is 12V or 24V or more, it is regenerated and discharged, and when 12V or 24V or less, only the charging can be performed. That is, the user may select day / night through the selector 30.

On the other hand, when the automatic mode is selected, the battery 1 is continuously regenerated and charged during the day / night. At this time, the automatic mode is performed only after the regeneration of the battery (1) if the regeneration does not perform turbo charging until normal regeneration. Subsequently, when the reproduction of the battery 1 is completed by performing the normal regeneration, the mobile device 100 may enter the charging mode to perform charging and complete the charging.

In addition, the charging unit 40, the regeneration unit 50, and the discharge unit 70 may control the voltage from the solar power input unit 10 or the power supply input unit 20 to the battery 1 under the control of the microcomputer 60. It can be charged.

In this case, the charging unit 40 includes an overcharge protection unit 41 for preventing overcharge, an overdischarge protection unit 42 for protecting overdischarge, a circuit protection device and a warning indicating device for protecting a circuit during reverse polarity connection and short circuit. May be further provided.

Further, as shown in FIG. 4, the regeneration unit 50 continuously supplies regeneration pulses of 20 to 30 KHz to the positive electrode and the negative electrode of the battery 1 to remove sulfates fixed to the pole plates of the battery 1. On the other hand, the turbo charging unit 80 provides a regeneration pulse that periodically performs charging and discharging as the battery 1 cannot be used because the discharge end voltage is lower than 8.5 VDC or lower, thereby reproducing a low performance battery. Can be.

That is, sulfuric acid of the plate is a dibasic acid can be dissociated through the following [Equation 1].

->

->

→

의 묽은 황산으로 돌아가므로 극판에 떨어져 극판을 총소(크리닉)하여 배터리의 화학 작용을 돕고 전기발생과 저장 능력을 향상시킨다. Same as In other words, since sulphate is -2 ions, when stimulating the sulphate that formed the peak waveform, the crystal molecules of lead sulphate are relaxed from very short and decomposes lead sulphate and dissolves in the electrolyte.

As it returns to dilute sulfuric acid, it falls on the pole plate and burns the pole plate to help the battery chemistry and improve the electricity generation and storage capacity.

In particular, in the regeneration pulse 20 ~ 30KHz or less, the fixed sulfate is insufficient to decompose and above that, the sulfate is well decomposed, but the battery electrode and separator are damaged, so 20 ~ 30 KHz is suitable.

Therefore, the regeneration unit 50 may improve the regeneration conditions of the battery 1 by increasing the area of electricity generation of the electrode plate.

And the microcomputer 60 is an input voltage recognition unit 61 for recognizing the voltage selected by the selection unit 30; A voltage converter 62 for converting the input voltage recognized by the input voltage recognizer 51 into an input voltage value; A comparison voltage value setting unit 63 for setting a comparison voltage value; A voltage comparing unit 64 for comparing the input voltage value with a comparison voltage value; A voltage determination unit (65) configured to charge the battery (1) if the input voltage value is smaller than the comparison voltage value, and to regenerate and discharge the battery (1) if the input voltage value is larger than the comparison voltage value; And a regeneration controller 50 which detects the sulphation phenomenon of the battery 1 and repeats the regeneration and discharge using a specific pulse and controls the regeneration unit 70.

Here, the microcomputer 60 may provide a regeneration function of the battery, a turbo charging function of the battery, and an automatic regeneration and charging function of the battery.

When the voltage of the input power is more than the comparison voltage value, the microcomputer 60 may be regenerated and discharged to discharge the load while the power is charged.

In addition, when the input voltage is lower than the comparison voltage value, only charging is performed, so that the battery 1 may be fully charged.

At this time, the microcomputer 60 determines the cold cranking current and the internal resistance of the battery, discharges the battery 1 through the discharge unit 70, and simultaneously controls the regeneration unit 50 to generate a pulse to generate the battery 1. Will be supplied to

Therefore, since the regeneration unit 50 is operated only when regeneration and discharge are made, the power charged in the battery 1 can be supplied only to the load.

Thus, the charged power of the battery 1 is not wasted by other configurations than the load.

On the other hand, since the sulfate is coupled to the electrode in the discharge attempt of the battery 1, it is possible to easily control the sulfate phenomenon of forming an insulating layer by supplying a pulse to the electrode at the time of discharge.

On the other hand, the usage period setting unit 67 of the microcomputer 60 stops the operation after the operation for a predetermined period.

On the other hand, the lock function processing unit 68 of the microcomputer 60 may restore the suspended playback and charging functions through the usage period setting unit 67 according to a preset input.

In addition, it is possible to easily remove sulfate decomposition and sulfate phenomenon by supplying regeneration pulse during discharge.

Although the foregoing detailed description has shown, described, and mentioned the basic novel features of the invention as applied to configuration diagrams or embodiments, various omissions and substitutions may be made without departing from the intention of the invention with respect to the configuration and details of the illustrated system. And changes may be made by those skilled in the art.

10: solar power input unit 20: commercial power input unit
30: selection unit 40: charging unit
50: playback unit 60: micom
61: input voltage recognition unit 62: voltage conversion unit
63: comparison voltage setting unit 64: voltage comparison unit
65: voltage determination unit 66: regeneration control unit
67: period of use setting unit 68: lock function processing unit
70: discharge portion 80: turbo charging portion

Claims (8)

In the battery regeneration / charging device,
A commercial power input unit 20 into which commercial power is input;
A charging unit 40 charging the battery 1 by using the voltage generated by the commercial power input unit 20;
A discharge part 70 for discharging the battery 1;
A regeneration unit 50 for supplying a regeneration pulse to the battery 1 by using the voltage generated by the commercial power input unit 20 to remove sulfate generated in the battery; And
Detects the voltage of the battery 1, the cold cranking current of the battery 1, the internal resistance of the battery 1, the signal for determining the short-circuit state of each cell, and the input voltage provided from the commercial power input unit 20. Battery charging / recharging device including a microcomputer (60) for controlling the regeneration unit 50 for controlling the operation of the charging unit 40, the discharge unit (70).
The method of claim 1,
Regeneration pulse provided through the regeneration unit 50,
Battery regeneration / charging device, characterized in that 20 ~ 30khz.
The method of claim 1,
The microcomputer 60,
And a turbocharger (80) for charging after applying a regeneration pulse through the regeneration unit (50) with respect to the battery (1) which is unavailable below the discharge end voltage.
The method of claim 3, wherein
A solar power input unit 10 that absorbs sunlight and provides power converted into electrical energy by a photovoltaic effect; And
Battery regeneration / charging further comprises a selection unit 30 to select the input power input from the solar power input unit 10 and the commercial power input unit 20 to provide to the charging unit 40 or the regeneration unit 50 Device.
The method of claim 4, wherein
The microcomputer 60 is
An input voltage recognition unit 61 for recognizing a voltage selected by the selection unit 30;
A voltage converter 62 for converting the input voltage recognized by the input voltage recognizer 51 into an input voltage value;
A comparison voltage value setting unit 63 for setting a comparison voltage value;
A voltage comparing unit 64 for comparing the input voltage value with a comparison voltage value;
A voltage determining unit (65) configured to charge the battery (1) when the input voltage value is smaller than the comparison voltage value, and to regenerate and discharge the battery (1) when the input voltage value is larger than the comparison voltage value; And
Regeneration control unit 66 for controlling the regeneration unit 50 and the discharge unit 70 which detects the sulphation phenomenon of the battery 1 and analyzes the internal resistance of the battery 1 and the short circuit of each cell to determine regeneration and discharge. Battery regeneration / charging device comprising a).
6. The method of claim 5,
The microcomputer 60,
It is characterized by providing the automatic regeneration and charging function by judging the health state by combining the function of steel battery, turbo charging function of battery and battery plate sulfate state of battery, activation of electrolyte, disconnection, short circuit and charge state. Battery play / charge device.
The method of claim 6,
The microcomputer 60,
A usage period setting unit 67 for stopping the operation after the operation for a preset period; And
And a lock function processing unit (68) for restoring the play and charge function stopped through the use period setting unit (67) according to a preset input.
The method of claim 7, wherein
The microcomputer,
A regeneration mode for regenerating the battery 1 by selecting a power source and a solar cell,
A charging mode for charging the battery 1,
If the battery does not play after the battery 1 is played, turbo charge is performed until the normal play is performed, and then normal play is performed. When the battery 1 is finished playing, the battery enters the charging mode and performs charging. And a battery regeneration / charging device including an automatic mode which automatically performs a regeneration function and a charging function.

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