KR20120039423A - Apparatus and method for recycling and charging simultaneously a battery - Google Patents

Abstract

PURPOSE: An apparatus for simultaneously regenerating and charging a battery and a method thereof are provided to simultaneously regenerate and charge the battery after eliminating foreign materials inside of the battery, thereby shortening process time. CONSTITUTION: A charging part(150) receives a current from a power source part. A main controller(110) outputs a high frequency pulse signal. A discharge unit(160) discharges a battery. A display part(130) displays information with respect to a charging or discharging process of the battery. A user input part(140) establishes a set value with respect to the charging or discharging process of the battery.

Description

Apparatus and method for recycling and charging simultaneously a battery}

The present invention relates to an apparatus and a method for simultaneously charging the battery while removing foreign matters such as sulfates accumulated in the battery from the internal electrode efficiently.

In general, the battery uses a chemical action of the current, and the chemical energy can be used as electrical energy. When the battery is discharged, the battery can regain its function. When a battery is connected to a load on an external electrode terminal, an electrode plate in the battery and an electrolyte react with each other to generate a voltage.

Batteries use dilute sulfuric acid as the electrolyte, lead peroxide as the positive electrode, and pure lead as the negative electrode.

In order to obtain as much electrical energy as possible in a small volume, a battery is composed of thin plates connected in parallel so that the contact area between the electrode plate and the electrolyte which causes a chemical reaction is large, and the positive plate and the negative plate face each other.

The reaction between the positive electrode and the negative electrode plate produces insoluble PbSO ₄ , which is attached to both electrodes. When the battery is discharged, sulfuric acid is consumed to generate water, and the density of water is lower than that of sulfuric acid. Check and confirm the density. When the battery is recharged, the electrode reaction is reversed.

However, when charge and discharge are repeated for a long time, the sulphate that has stuck to the electrode plate is stuck to the electrode plate as it is without being released during charging, which is called a sulphation phenomenon.

This sulphation phenomenon causes a problem of lowering the voltage, capacity and specific gravity of the battery because the passage of the electrical reaction of the electrode plate is blocked to perform the insulating function.

The present invention proposes an apparatus and method for charging the battery together with removing foreign matters such as sulphate accumulated in the battery as described above.

In addition, the present invention proposes an apparatus and method for reducing the time required for regeneration of a battery by removing the sulfate and the like formed on the battery internal electrode and enabling the battery to be charged.

An apparatus for simultaneously regenerating and charging a battery according to the present embodiment includes a power supply unit that receives external power for charging the battery; A charging unit configured to receive a current provided from the power supply unit; A main control unit outputting a high frequency pulse signal to the charging unit; A discharge unit configured to discharge the battery under control of the main controller; A display unit displaying information on charging or discharging of the battery; And a user input unit configured to allow a user to set a setting value regarding charging or discharging of the battery, wherein the charging unit converts a current transmitted from the power supply unit into a high frequency pulse to supply the battery to the battery, and the main control unit. Determining whether the battery is discharged by the discharge unit in accordance with the internal resistance value of the battery.

In accordance with a second aspect of the present invention, there is provided an apparatus comprising: a power supply unit receiving external power for charging a battery; A charging unit configured to receive a current provided from the power supply unit; A main control unit outputting a high frequency pulse signal to the charging unit; A display unit displaying information on charging or discharging of the battery; And a user input unit configured to allow a user to set a setting value for charging or discharging the battery, wherein the charging unit converts a current transmitted from the power supply unit into a high frequency pulse shape and supplies it to the battery.

A method of regenerating and charging a battery according to the present embodiment includes a method of simultaneously regenerating and charging a battery, including: discharging the battery; Determining whether the discharged battery voltage reaches a first preset voltage; As a result of the determination, when the battery voltage reaches the first set voltage, converting a current to be supplied to the battery into a high frequency pulse so that the battery is simultaneously regenerated and charged; And supplying the current converted into the high frequency pulse form to the battery such that the voltage of the battery is charged to a second predetermined voltage.

According to the device according to the embodiments of the present invention, since the battery is regenerated and the battery is charged at the same time, there is an advantage that the time of work performed to extend the life of the battery can be greatly reduced.

In addition, since the battery can be regenerated and charged in various ways according to the user's selection, there is an advantage that it can be used in various environments.

1 shows an apparatus for regeneration and charging of a battery according to a first embodiment of the present invention.
2 is a view showing in detail the configuration of the main control unit in the apparatus according to the first embodiment of the present invention.
3 is a flow chart illustrating the operational flow of the apparatus according to the first embodiment of the present invention.
4 illustrates an apparatus for regeneration and charging of a battery according to a second embodiment of the present invention.
5 is a view showing in detail the configuration of the main control unit in the apparatus according to the second embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings for the present embodiment will be described in detail. However, the scope of the inventive idea of the present embodiment may be determined from the matters disclosed by the present embodiment, and the inventive idea of the present embodiment may be implemented by adding, deleting, or modifying components to the proposed embodiment. It will be said to include variations.

1 is a view showing an apparatus for regeneration and charging of a battery according to a first embodiment of the present invention, Figure 2 is a view showing in detail the configuration of the main control unit in the device according to the first embodiment of the present invention.

First, referring to FIG. 1, the device of the present embodiment receives a power source from the outside and delivers the power to the charging unit 150, and the power current supplied from the power unit 120 is a high frequency pulse in the form of the battery 300. Charging unit 150 to perform pulse width modulation to be supplied to the power supply unit 120, and a main control unit 110 controlling the operations of the power supply unit 120 and the charging unit 150.

In addition, a display unit for allowing a user to check information such as a battery regeneration to remove foreign substances such as sulfate formed in the battery 300, the setting contents of the battery charge charging the battery 300, the progress and the like ( 130 is provided.

In addition, the user may set matters related to the regeneration of the battery and charging the battery, for example, a set voltage value or a set current value for determining the battery regeneration standard, a charging time related to the battery charging, a charge current value, and the like. A user input unit 140 is provided to allow the use.

In addition, in the apparatus according to the first embodiment, the discharge unit 160 for discharging the power of the battery 300 includes the main control unit so that the battery 300 can be efficiently regenerated and charged together. 160 and the battery 300.

In particular, the apparatus for regeneration and charging of the battery according to an embodiment of the present invention, the operation of regenerating the battery 300, and the operation of charging the battery 300 is not performed with a time difference, The battery regeneration process and the battery charging process of the battery 300 are performed at the same time.

That is, the device of the present embodiment converts the current supplied to the battery 300 side to form a high frequency pulse in order to charge the battery 300, and the current of the converted high frequency pulse charges the battery 300. Of course, the vibration of the battery internal electrode is induced by the high frequency vibration of the current of the high frequency pulse, so that foreign matters such as sulfate are separated from the internal electrode.

The apparatus of the present invention is different from simply supplying a signal of a high frequency pulse form to a battery side, and converts a current power supply for charging the battery 300 into a high frequency pulse form, thereby charging the battery 300 together with the charging of the battery 300. It may be understood that regeneration takes place.

In addition, the charging unit 150 performs an on / off operation according to a pulse signal applied to the base of the transistor TR with respect to the current transmitted from the power supply unit 120, thereby generating a high frequency pulse toward the battery 300. It has a structure that allows a form current to be applied.

On the other hand, the main controller 110 may control the output current value or the battery charging time of the charging unit 150 according to the setting value associated with the regeneration and charging input through the user input unit 140, the user In case of inputting automatic regeneration and charging, the battery 300 is regenerated and charged according to a pre-stored value.

For example, when regenerating and charging a high capacity battery used for a golf cart or a bus, the main controller 110 may set the magnitude of the high frequency pulse current output through the charging unit 150 to 1 of the battery capacity. Let it be at / 10 level. The battery used in the golf cart or truck is about 200A, which is higher than the battery used in a general passenger car. In this case, the amount of current output through the charging unit 150 is about 20A, and the capacity is about 100A ~ 120A. In the case of a high capacity battery used for the bus to be, the output current value of the charging unit 150 is 10A ~ 12A.

The high frequency current value output through the charging unit 150 is individually adjustable by the user by operating the user input unit 140, and the high frequency current value output is related to the charging time of the battery 300. Of course it is.

In addition, the apparatus according to the first embodiment of the present invention is capable of reproducing and charging a high capacity battery, and is provided with a discharge unit 160 for applying a load to the battery 300 for efficient battery regeneration and charging. . The description related to the discharge unit 160 will be described with FIG. 2 showing a detailed configuration of the main control unit 110 and FIG. 3 showing an operation flow of the present embodiment.

2 illustrates the configuration of the main control unit 110 of the apparatus according to the first embodiment in more detail, and FIG. 3 illustrates an automatic regeneration / charging process of a battery of the apparatus according to the first embodiment.

Referring to FIG. 2, the main control unit 110 of the apparatus for recharging the battery and charging the battery by supplying a current to the battery 300 in the form of a high frequency pulse may include a voltage and a current supplied to the battery. A detector 114 for detecting a battery state, a comparator 115 for comparing a predetermined value with a value measured by the detector 114, and a comparison result determined by the comparator 115. A sub-control unit 111 that receives the input and controls the charging unit 150 and the discharge unit 160, a charge PWM generation unit 112 generating a charging pulse signal to be provided to the sub-control unit 111, and the sub-control unit And a discharge PWM generator 113 for generating a discharge pulse signal to be provided to 111.

The detection unit 114 detects the magnitude of the voltage or current supplied to the battery 300 so that the sub control unit 111 can determine whether the charging of the battery by the charging unit 150 is normal. The internal temperature of the battery may be detected through the temperature sensor provided in the battery 300, or the charging time of the battery 300 may be measured.

In addition, the detector 114 measures the internal resistance of the battery and voltage, current, temperature, and the like.

The comparison unit 115 compares a preset value stored with a value measured through the detection unit 114 and transfers the measured value to the sub-control unit 111.

In more detail, the comparison unit 115 compares the internal resistance value of the battery checked through the detection unit 114 with a previously stored first set resistance value (see FIG. 3), and compares the result with the sub control unit 111. Can be delivered to. The sub-control unit 111 receiving the comparison result may cause the battery to be discharged by the discharge unit 160 when the internal resistance value of the battery is smaller than the first set resistance value. That is, when the internal resistance of the battery is larger than the previously stored first set resistance value, it may be determined that the battery cannot be regenerated.

In addition, the battery has a predetermined shunt voltage due to internal resistance, and the discharge of the battery is performed to remove such shunt voltage. In this process, the comparator 115 is configured with a predetermined battery voltage during discharge. It may be compared with a first set voltage, and the comparison result may be provided to the sub controller 111. In this case, the sub controller 111 may control the charging of the battery after the voltage of the battery drops to the first set voltage.

In addition, the comparison unit 115 may compare the matters related to the regeneration and charging of the battery with a preset value, and transmit the result to the sub-control unit 111.

In addition, the charging PWM generation unit 112 generates a high frequency pulse so that the current provided from the power supply unit 120 is converted into a high frequency pulse form by the transistor on / off operation of the charging unit 150. For example, the charging PWM generator 112 may generate a high frequency pulse signal of about 10 kHz. However, the technical idea of the present invention is not limited to these numerical matters.

In addition, the discharge PWM generator 113 serves to generate a high frequency pulse so that the sulfate can be removed while the battery is discharged by the discharge unit 160.

In addition, a transistor capable of switching as in the case of the charging unit is provided in the discharge unit 160, and the transistor in the discharge unit is turned on / off according to the discharge PWM signal transmitted from the sub control unit 111. In this way, the battery 300 is connected to the load and discharged. In addition, vibration is generated at the internal electrodes of the battery by the high frequency pulse signal provided from the discharge PWM generator 113, and foreign matter such as sulfate can be removed even during discharge of the battery.

A method of operating the apparatus of the first embodiment of the present invention having such a configuration will be described in detail with reference to FIG. 3.

Whether the apparatus of the present invention is to automatically perform the regeneration and charging of the battery, or whether the user directly sets the magnitude of the current, the charging time, etc. related to the regeneration and charging of the battery by operating the user input unit 140. Can be selected. However, even when the user simply selects to automatically regenerate and charge the battery, it is preferable to set the charging current value in consideration of the capacity of the target battery.

For example, when the capacity of the battery is 200A, the user may confirm this and set the charging current to about 20A, which is 1/10 level, through the user input unit of the device.

Hereinafter, a case in which the user automatically sets the regeneration and charging of the battery will be described.When the user manually sets the set resistance or the set voltage to be compared, such as the measured internal resistance value of the battery and the magnitude of the battery voltage, Will be variable.

When the user selects the automatic regeneration and charging function of the battery by the device of the present invention (S101), the device measures the internal resistance of the battery (S102). The internal resistance of the battery can be measured by measuring the magnitude of the voltage according to the current to be applied, as known in the art.

The internal resistance of the battery may be performed by the detector 114, and the comparator 115 compares whether the measured internal resistance of the battery is smaller than the preset first set resistance (S103). .

As a result of comparison, when the internal resistance of the battery is greater than the first predetermined resistance, the sub-control unit 116 determines that the battery is a non-reusable battery (S104) and does not perform regeneration and charging of the battery. Do not. Then, the display unit 130, so that the user knows these matters, so as to display the information of the failure for the battery.

On the other hand, when the internal resistance of the battery is smaller than the first preset resistance, the operation for regeneration and charging of the battery is started. However, in order to increase the regeneration and charging efficiency of the battery, the process of discharge (S105) for the battery is first performed. As a process for eliminating the slack voltage that may exist in the battery, it is to improve the charging efficiency of the battery.

In addition, the detector 114 detects a voltage of the battery, and the comparator 115 compares the preset first set voltage with a magnitude thereof, and the result is transmitted to the sub controller 111.

The sub-control unit 111 determines whether the voltage of the battery reaches a predetermined first set voltage (S106), and as a result, when the battery is not discharged to the first set voltage, the discharge unit 160. Allow the discharge of the battery to be further performed. As described above, the discharge by the discharge unit 160 allows the load to be connected to the battery according to the on / off operation of the transistor.

On the other hand, when the measured voltage of the battery reaches the first set voltage, the sub-control unit 111 allows the battery to be charged by the charging unit 150 (S107). Here, the battery charging by the charging unit 150, as described above, by supplying a high-frequency pulse current to the battery, so that the vibration according to the high frequency to be transmitted to the internal electrode of the battery to remove foreign substances such as sulfate, Charge the battery by current at the same time.

In addition, the sub-control unit 111 reads the voltage of the battery which is simultaneously being regenerated and charged, and performs charging until the voltage of the corresponding battery reaches the second preset voltage (S108). The second set voltage may be changed by the user when the user manually charges the battery, and the user may set the charging completion time of the battery as the charging time instead of the set voltage.

Further, the sub controller 111 further reads the internal resistance of the battery detected through the detector 114, and determines whether the additionally measured battery internal resistance is smaller than the second preset resistance ( S110). In this case, the sub-control unit 111 is for re-confirming whether the charging is completed at an appropriate level even though the battery is regenerated and charged.

As a result of determination, when the re-measured battery internal resistance is not smaller than the second preset resistance, it is determined as a non-reusable battery in which charging is not normally performed (S111), and regeneration and charging of the battery are not performed. Then, the display unit 130, so that the user knows these matters, so as to display the information of the failure for the battery.

On the other hand, when the measured battery internal resistance is smaller than the second preset resistance, the sub-control unit 111 allows the user to know that the charging is completed through the display unit 130 or the like and can be reused ( S112).

As described above, even in the case of a battery having a high capacity, by regeneration and charging after discharge of the battery, there is an advantage that can extend the life of the battery more stably.

4 is a view showing an apparatus for regeneration and charging of a battery according to a second embodiment of the present invention, Figure 5 is a view showing the configuration of the main controller in detail in the device according to a second embodiment of the present invention.

A second embodiment of the present invention will be described with reference to FIGS. 4 and 5, and a description thereof will be omitted for the same configuration as that of the first embodiment.

The device of the second embodiment is provided with a power supply unit 220 that receives power from the outside and delivers the power to the charging unit 250, and a transistor which performs a switching role so that the current supplied from the power supply unit 220 is converted into a high frequency pulse form. And a main controller 210 for controlling the current to be supplied to the battery 400 in the form of a high frequency pulse output through the charging unit 250.

In addition, a display unit for allowing a user to check information such as battery regeneration to remove foreign substances such as sulfate formed in the battery 400 and setting contents, progress, and the like of battery charging to charge the battery 400 ( 230 is provided.

In addition, the user may set matters related to the regeneration of the battery and charging the battery, for example, a set voltage value or a set current value for determining the battery regeneration standard, a charging time related to the battery charging, a charge current value, and the like. The user input unit 240 is provided to enable the.

Unlike the case of the first embodiment, the apparatus according to the second embodiment does not perform the discharge operation of the battery before performing the regeneration and charging of the battery, and reproduces the battery having a capacity of about 80 A mounted on an automobile or the like. And suitable for charging.

Looking at the detailed configuration of the main control unit 210 of the device according to the second embodiment, the PWM generator 212 for generating a PWM signal for controlling the operation of the transistor in the charging unit 250 and the battery A detector 214 for detecting a state of a battery such as a voltage and a current supplied to the 400, a comparator 215 for comparing a predetermined value with a value measured by the detector 214, and the comparator And a sub control unit 211 for controlling the operation of the device from the value output from 215.

In the apparatus according to the second embodiment, the user may directly set matters related to the regeneration and charging of the battery, or the regeneration and charging of the battery may be automatically performed at a preset value.

When the battery is connected to the device, the sub-control unit 211 transfers the PWM signal generated by the PWM generator 212 to the charger 250 and turns on / off the transistors in the charger 250 receiving the PWM signal. By the off operation, a high frequency pulse current is supplied to the battery 400.

By the high-frequency current, vibration of the internal electrode of the battery 400 is induced to remove foreign substances such as sulfate, and the battery 400 may be charged at the same time. As in the case of the first embodiment, it is possible to use the internal resistance value of the battery 400 and the internal resistance value of the battery additionally measured after the battery 400 is fully charged when the battery is regenerated and charged. It may be determined whether or not the battery.

According to the embodiments of the present invention as described above, there is no need to separate the process of regenerating the battery and the process of recharging the battery, and the user using the device can improve the work speed by performing the regeneration and charging at the same time. do.

110, 210: main control unit
111, 211: sub control unit
112: charging PWM generation unit
113: discharge PWM generation unit
114: detector
115: comparison unit
120, 220: power supply
130, 230: display unit
140, 240: user input unit
150, 250: charging part
160: discharge unit
300, 400: battery

Claims (4)

A power supply unit that receives external power for charging the battery;
A charging unit configured to receive a current provided from the power supply unit;
A main control unit outputting a high frequency pulse signal to the charging unit;
A discharge unit configured to discharge the battery under control of the main controller;
A display unit displaying information on charging or discharging of the battery; And
And a user input unit configured to allow a user to set a setting value regarding charging or discharging of the battery.
The charging unit converts the current transmitted from the power supply unit into a high frequency pulse form to supply to the battery,
And the main controller determines whether or not the battery is discharged by the discharge unit according to the internal resistance value of the battery. The method of claim 1,
The main control unit,
A detector which measures the magnitude of the voltage or current supplied to the battery, a comparator which compares the value measured by the detector with a preset value, and controls the operation of the charging part and the discharge part from the comparison result of the comparator. Device including a sub control unit. A power supply unit that receives external power for charging the battery;
A charging unit configured to receive a current provided from the power supply unit;
A main control unit outputting a high frequency pulse signal to the charging unit;
A display unit displaying information on charging of the battery; And
And a user input unit configured to allow a user to set a setting value regarding charging of the battery.
The charging unit converts the current transmitted from the power supply unit into a high frequency pulse form to simultaneously regenerate and charge the battery supplied to the battery. As a method for regenerating and charging the battery at the same time,
Discharging the battery;
Determining whether the discharged battery voltage reaches a first preset voltage;
As a result of the determination, when the battery voltage reaches the first set voltage, converting a current to be supplied to the battery into a high frequency pulse so that the battery is simultaneously regenerated and charged; And
And supplying the current converted into the high frequency pulse form to the battery such that the voltage of the battery is charged to a second predetermined voltage.

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