CN110858669A - Circuit for repairing vulcanized storage battery - Google Patents
Circuit for repairing vulcanized storage battery Download PDFInfo
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- CN110858669A CN110858669A CN201810978214.4A CN201810978214A CN110858669A CN 110858669 A CN110858669 A CN 110858669A CN 201810978214 A CN201810978214 A CN 201810978214A CN 110858669 A CN110858669 A CN 110858669A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4242—Regeneration of electrolyte or reactants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a circuit for repairing a vulcanized storage battery, which comprises a charging power supply, a switch unit and a control unit, wherein the charging power supply is connected with the storage battery through the switch unit to form a charging loop; the duty ratio of the PWM signal is modulated according to the nominal capacity of the storage battery; and the control unit controls and outputs PWM (pulse-width modulation) with different duty ratios to control the switch unit to be switched on according to the storage batteries with different nominal capacities. Therefore, for storage batteries with different nominal capacities, when the electric quantity of the storage battery is reduced and needs to be repaired, intermittent cyclic charging repair is carried out by adopting currents of different resonant pulses, the effect of sulfur removal is achieved while the repair rate is improved, the duty ratio of the resonant pulses can be automatically adjusted, and the cost is saved.
Description
Technical Field
The invention relates to the technical field of electronic circuits, in particular to a circuit for repairing a vulcanized storage battery.
Background
The vulcanization of the lead-acid storage battery is a main pushing hand for reducing the performance of the lead-acid storage battery, so that the repair of the vulcanized lead-acid storage battery is a main means for repairing the lead-acid storage battery with reduced performance at present.
At present, in the industry, pulse is mainly used for carrying out electric pulse repair on sulfur oxide crystals crystallized on electrodes due to vulcanization, and the applied pulse repair methods mainly comprise the following 2 methods:
high-frequency pulse: pulse waves are adopted to convert lead sulfate crystals into reversible lead sulfate with fine grains and high electrochemistry again, so that the reversible lead sulfate can normally participate in the chemical reaction of charging and discharging, and the repair rate is about 60%. But the repairing time is long, dozens of hours or even one week is needed, the efficiency is low, and the method cannot repair the lead-acid storage battery which is seriously vulcanized.
Composite resonance pulse: reasonably controlling the front edge of the repairing pulse, and eliminating sulfuration in the repairing process by using a method of combining a pulse group and large lead sulfate crystal resonance. The method has high repair rate, causes little damage to the lead-acid storage battery, can greatly prolong the service life of the lead-acid storage battery, is a nondestructive repair technology and has wide prospect.
The composite resonance pulse technology is characterized in that under a specific frequency (generally 1-10000 Hz), continuously-changed combined pulse groups are used for bombarding and oscillating lead sulfate crystals on the surface of an electrode, the lead sulfate crystals resonate with the lead sulfate crystals, molecules enter a metastable state, and then are disintegrated, loosened and dissolved, so that the surface of the electrode covered by hard lead sulfate crystals recovers activity, and the lead sulfate performs a normal electrochemical reaction during charging and is reduced into lead, lead oxide and dilute sulfuric acid. The lead sulfate deposits that have formed on the surfaces of the electrodes of the "shock battery" and the "fatigue battery" are removed, and therefore, the battery is repaired, the capacity is restored, and the life is extended. The new lead accumulator has no lead sulfate crystal coating on the electrode surface under the action of resonant pulse oscillation, and can maintain the new accumulator state for long period to prolong its service life.
However, the existing resonant pulse repair technology cannot achieve the due repair effect because the material, structure, capacity and use condition of the battery are not considered.
Disclosure of Invention
The invention mainly aims to provide a circuit for repairing a vulcanized storage battery, aiming at improving the repairing effect of the vulcanized storage battery.
In order to achieve the above object, the circuit for repairing a vulcanized storage battery provided by the present invention comprises a charging power supply, a switching unit and a control unit, wherein the charging power supply is connected with the storage battery through the switching unit to form a charging loop, the control unit is connected with a control end of the switching unit, the control unit outputs a PWM signal capable of modulating a duty ratio to the control end of the switching unit, and the control switching unit is turned on at a frequency same as a duty ratio value of the PWM signal; the duty cycle of the PWM signal is modulated according to the nominal capacity of the battery.
Preferably, the duty ratio of the PWM signal can be modulated in a range of 1% -50%, and the frequency of the PWM signal is 8400Hz ± 5%.
Preferably, the duty cycle of the PWM signal is 10% when the nominal capacity of the battery is 100 AH.
Preferably, the duty ratio of the PWM signal is 20% when the nominal capacity of the secondary battery is 200 AH.
Preferably, the duty cycle of the PWM signal is 30% when the nominal capacity of the battery is 500 AH.
Preferably, the duty cycle of the PWM signal is 40% when the nominal capacity of the battery is 1000 AH.
Preferably, the duty cycle of the PWM signal is 50% when the nominal capacity of the battery is 2000 AH.
Preferably, the switch unit includes a first MOS transistor and a first diode, a gate of the first MOS transistor is connected to the output terminal of the control unit as a control terminal of the switch unit, a drain of the first MOS transistor is connected to an anode of a charging power supply, a source of the first MOS transistor is connected to an anode of the first diode, a cathode of the first diode is connected to an anode of the battery, and a cathode of the battery is connected to a cathode of the charging power supply.
Preferably, the circuit for repairing the vulcanized storage battery further comprises an isolation unit, the isolation unit is connected between the control unit and the switch unit, the isolation unit comprises an optocoupler, a first triode, a second triode, a third triode, a first resistor, a second resistor, a third resistor and a fourth resistor, one input end of the optocoupler is connected with the output end of the control unit through the first resistor, the other input end of the optocoupler is grounded, one output end of the optocoupler is connected with a working power supply, the other output end of the optocoupler is connected with one end of the base of the first triode and one end of the third resistor through the second resistor, the collector of the first triode is connected with the working power supply, the emitter of the first triode is connected with the base of the second triode, the base of the third triode and one end of the fourth resistor, the other end of the third resistor is connected with the other end of the fourth resistor and grounded, and the collector of the second triode is connected with a working power supply, the emitter of the second triode is connected with the emitter of the third triode and the grid of the first MOS, and the collector of the third triode is connected with the source of the first MOS tube and grounded.
Preferably, the first MOS transistor is an N-type MOS transistor, the first triode and the second triode are both NPN-type triodes, and the third triode is a PNP-type triode.
According to the technical scheme, the control unit outputs the PWM signal capable of modulating the duty ratio to control the switch unit to be switched on or off, when the PWM signal is at a high level, the switch unit is switched on, the charging loop is switched on, and the charging power supply charges the storage battery; when the PWM signal is at a low level, the switch unit is closed, the charging loop is disconnected, and the charging power supply stops charging the storage battery; the duty ratio of the PWM signal is the ratio of the period time occupied by the PWM signal in one period time, and the PWM signal can be modulated according to storage batteries with different capacities. Therefore, for the storage batteries with different nominal capacities, when the electric quantity of the storage battery is reduced and needs to be repaired, the intermittent cyclic charging repair is equivalently carried out by adopting the currents of different resonant pulses, the effect of sulfur removal is achieved while the repair rate is improved, the duty ratio of the resonant pulses can be automatically adjusted, and the cost is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a block diagram of an embodiment of a circuit for repairing a vulcanized battery according to the present invention;
fig. 2 is a schematic circuit structure diagram of a circuit for repairing a vulcanized battery according to an embodiment of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a circuit for repairing a vulcanized storage battery.
Referring to fig. 1 to 2, fig. 1 is a block structural schematic diagram of an embodiment of a circuit for repairing a vulcanized battery according to the present invention; fig. 2 is a schematic circuit structure diagram of a circuit for repairing a vulcanized battery according to an embodiment of the present invention.
In the embodiment of the present invention, as shown in fig. 1, the circuit for repairing a vulcanized storage battery includes a charging power supply 100, a switching unit 200 and a control unit 400, wherein the charging power supply 100 is connected with the storage battery 300 through the switching unit 200 to form a charging loop, the control unit 400 is connected with a control terminal of the switching unit 200, the control unit 400 outputs a PWM signal capable of modulating a duty ratio to the control terminal of the switching unit 200, and the switching unit 200 is controlled to be turned on at a frequency same as a duty ratio value of the PWM signal; the duty ratio of the PWM signal is modulated according to the capacity of the battery 300.
In the present embodiment, the charging power supply 100 is preferably charged by a constant current power supply, the output current value of the charging power supply 100 is preferably 2A, the output voltage value is preferably 5V, and the storage battery 300 is preferably a lead-acid storage battery.
Specifically, in the charging loop, the positive output terminal of the charging power supply 100 is connected to the positive electrode of the storage battery 300 through the switch unit 200, and accordingly the negative output terminal of the charging power supply 100 is connected to the negative electrode of the storage battery 300; when the control unit 400 controls the switch unit 200 to be turned on, the charging loop is turned on, and the charging power supply 100 charges the storage battery 300; when the control unit 400 controls the switch unit 200 to be turned off, the charging circuit is turned off, and the charging power supply 100 stops charging the secondary battery 300.
The control unit 400 outputs a PWM signal capable of modulating the duty ratio to control the switching unit 200 to be turned on or off, when the PWM signal is at a high level, the switching unit 200 is turned on, the charging loop is turned on, and the charging power supply 100 charges the storage battery 300; when the PWM signal is at a low level, the switching unit 200 is turned off, the charging circuit is turned off, and the charging power supply 100 stops charging the storage battery 300; the duty ratio of the PWM signal is a ratio of the period time occupied by the PWM signal in one period time, and may be modulated according to the storage battery 300 having different nominal capacities. Therefore, for the storage batteries 300 with different nominal capacities, when the electric quantity of the storage battery 300 is reduced and needs to be repaired, the intermittent cyclic charging repair is performed by adopting the currents of different resonant pulses, the sulfur removal effect is achieved while the repair rate is improved, the duty ratio of the resonant pulses can be automatically adjusted, and the cost is saved.
Specifically, in the present embodiment, the duty ratio of the PWM signal may be modulated in a range of preferably 1% to 50%, and the frequency of the PWM signal is preferably 8400Hz ± 5%. The frequency range of the PWM signal is selected by the following experimental data table:
in the above table, the experimental objects are storage batteries with different nominal capacities, the test base numbers are all 100, and the number of batteries whose capacities are restored to 95% or more of the nominal capacities by performing the restoration under the PWM signals with different frequencies is recorded. According to experimental data, the repair rate is highest when the frequency of the PWM signal is 8400Hz, and therefore, in the present embodiment, the frequency range of the PWM signal is preferably 8400Hz ± 5%.
And the duty ratio of the selected PWM signal is different for batteries 300 of different nominal capacities.
Typically, the duty cycle of the PWM signal is 10% when the nominal capacity of the battery is 100 AH; when the nominal capacity of the storage battery is 200AH, the duty ratio of the PWM signal is 20%; when the nominal capacity of the storage battery is 500AH, the duty ratio of the PWM signal is 30%; when the nominal capacity of the storage battery is 1000AH, the duty ratio of the PWM signal is 40%; the duty cycle of the PWM signal is 50% when the nominal capacity of the battery is 2000 AH.
Specifically, referring to fig. 2, the switching unit 200 includes a first MOS transistor V1 and a first diode D1, a gate of the first MOS transistor V1 is connected to the output terminal of the control unit 400 as the control terminal of the switching unit 200, a drain of the first MOS transistor V1 is connected to the charging power source 100, a source of the first MOS transistor V1 is connected to an anode of the first diode D1, and a cathode of the first diode D1 is connected to the secondary battery 300.
In this embodiment, the first MOS transistor V1 is preferably an N-type MOS transistor, and the gate is turned on at a high level; when the PWM signal output by the control unit 400 is at a high level, the first MOS transistor V1 is turned on, and the positive electrode of the charging power supply 100, the drain electrode of the first MOS transistor V1, the source electrode of the first MOS transistor V1, the anode of the first diode D1, the cathode of the first diode D1, the positive electrode of the battery 300, the negative electrode of the battery 300, and the negative electrode of the charging power supply 100 are sequentially connected to form a charging loop, so that the battery 300 enters a charging state; when the PWM signal output from control unit 400 is at a low level, first MOS transistor V1 is turned off, the charging circuit is disconnected, and battery 300 stops charging.
Further, the circuit for repairing the vulcanized storage battery further comprises an isolation unit 500, wherein the isolation unit 500 is connected between the control unit 400 and the switch unit 200; therefore, the signal can be transmitted only in one direction, and the interference of other signals is prevented.
Specifically, the isolation unit 500 includes an OT-type transistor 1, a first triode Q1, a second triode Q2, a third triode Q3, a first resistor R1, a second resistor R2, a third resistor R3, and a fourth resistor R4, an input end of the OT-type transistor 1 is connected to an output end of the control unit 400 through the first resistor R1, another input end of the OT-type transistor 1 is grounded, one output ends of the OT-type transistors OT1 and OT2 are connected to the operating power supply, another output ends of the OT-type transistors OT1 and OT2 are connected to a base of the first triode Q1 and one end of the third resistor R3 through the second resistor R2, a collector of the first triode Q1 is connected to the operating power supply, an emitter of the first triode Q1 is connected to a base of the second triode Q2, a base of the third triode Q3, and one end of the fourth resistor R4, and the other end of the third resistor R3 is connected to the other end of the fourth resistor R4 and grounded, the collector of the second triode Q2 is connected with the working power supply, the emitter of the second triode Q2 is connected with the third triode Q3 and the grid of the first MOS, and the collector of the third triode Q3 is connected with the source of the first MOS transistor V1 and is grounded.
In this embodiment, the first transistor Q1 and the second transistor Q2 are preferably NPN transistors, and the third transistor Q3 is preferably a PNP transistor. The first resistor R1 and the second resistor R2 are used for limiting current, and prevent overlarge current from impacting a circuit and burning components in the circuit.
Firstly, when the PWM signal output by the control unit 400 is at a high level, the light emitting diode at the input side of the opto-coupler OT1 is turned on, the phototransistor at the output side of the opto-coupler OT1 is turned on, the base level of the first triode Q1 is rapidly pulled high by the working power supply through the phototransistor, the first triode Q1 is turned on, the level of the emitter of the first triode Q1 is also pulled high therewith, the second triode Q2 is turned on at this time, the third triode Q3 is turned off, then the grid of the first MOS transistor V1 is also pulled high by the working power supply through the second triode Q2, then the first MOS transistor V1 is turned on, and the charging loop is turned on.
When the PWM signal output by the control unit 400 is at a low level, the input side light emitting diode of the optocoupler OT1 is turned off, the output side phototriode of the optocoupler OT1 is turned off, the base level of the first triode Q1 is rapidly pulled down, the first triode Q1 is turned off, the level of the emitter of the first triode Q1 is also pulled down, the second triode Q2 is turned off at this time, the third triode Q3 is turned on, the collector of the third triode Q3 pulls down the gate of the first MOS transistor V1, the first MOS transistor V1 is turned off, and the charging circuit is turned off. During this preset time period, battery 300 performs an intermittent cyclic charging operation.
Through the design of the isolation unit 500, the charging and discharging processes of the storage battery 300 are accurate and are not interfered by other signals.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The circuit for repairing the vulcanized storage battery is characterized by comprising a charging power supply, a switch unit and a control unit, wherein the charging power supply is connected with the storage battery through the switch unit to form a charging loop; the duty cycle of the PWM signal is modulated according to the nominal capacity of the battery.
2. A circuit for repairing a cured battery as claimed in claim 1, wherein the duty cycle of said PWM signal is modulated in the range of 1% -50%, and the frequency of said PWM signal is 8400Hz ± 5%.
3. A circuit for repairing a cured battery as claimed in claim 2, wherein said PWM signal has a duty cycle of 10% when said battery has a nominal capacity of 100 AH.
4. A circuit for repairing a cured battery as claimed in claim 2, wherein said PWM signal has a duty cycle of 20% when said battery has a nominal capacity of 200 AH.
5. A circuit for repairing a cured battery as claimed in claim 2, wherein said PWM signal has a duty cycle of 30% when said battery has a nominal capacity of 500 AH.
6. A circuit for repairing a cured battery as claimed in claim 2, wherein said PWM signal has a duty cycle of 40% when said battery has a nominal capacity of 1000 AH.
7. A circuit for repairing a cured battery as claimed in claim 2, wherein said PWM signal has a duty cycle of 50% when said battery has a nominal capacity of 2000 AH.
8. The circuit for repairing a vulcanized battery as set forth in any one of claims 1 to 7, wherein said switching unit includes a first MOS transistor and a first diode, a gate of said first MOS transistor is connected as a control terminal of said switching unit to an output terminal of said control unit, a drain of said first MOS transistor is connected to a positive electrode of a charging power source, a source of said first MOS transistor is connected to an anode of said first diode, a cathode of said first diode is connected to a positive electrode of said battery, and a negative electrode of said battery is connected to a negative electrode of said charging power source.
9. The circuit for repairing a vulcanized storage battery as defined in claim 8, further comprising an isolation unit connected between the control unit and the switch unit, wherein the isolation unit comprises an optocoupler, a first transistor, a second transistor, a third transistor, a first resistor, a second resistor, a third resistor and a fourth resistor, one input end of the optocoupler is connected with the output end of the control unit through the first resistor, the other input end of the optocoupler is grounded, one output end of the optocoupler is connected with a working power supply, the other output end of the optocoupler is connected with one end of the base of the first transistor and one end of the third resistor through the second resistor, the collector of the first transistor is connected with the working power supply, the emitter of the first transistor is connected with the base of the second transistor and the base of the third transistor, One end of a fourth resistor is connected, the other end of the third resistor is connected with the other end of the fourth resistor and grounded, a collector of the second triode is connected with a working power supply, an emitter of the second triode is connected with an emitter of the third triode and a grid of the first MOS, and a collector of the third triode is connected with a source electrode of the first MOS tube and grounded.
10. The circuit for repairing a vulcanized storage battery as set forth in claim 9, wherein said first MOS transistor is an N-type MOS transistor, said first transistor and said second transistor are both NPN-type transistors, and said third transistor is a PNP-type transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810978214.4A CN110858669A (en) | 2018-08-23 | 2018-08-23 | Circuit for repairing vulcanized storage battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810978214.4A CN110858669A (en) | 2018-08-23 | 2018-08-23 | Circuit for repairing vulcanized storage battery |
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| CN110858669A true CN110858669A (en) | 2020-03-03 |
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| CN201810978214.4A Pending CN110858669A (en) | 2018-08-23 | 2018-08-23 | Circuit for repairing vulcanized storage battery |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006057083A1 (en) * | 2004-11-26 | 2006-06-01 | Pulsetech Japan Corporation | Used lead battery regenerating/new lead battery capacity increasing method |
| CN200950460Y (en) * | 2006-09-22 | 2007-09-19 | 北京清大华美环保节能技术研究院 | System for detecting and recovering lead-acid accumulator |
| CN101222073A (en) * | 2007-12-19 | 2008-07-16 | 江南大学 | Digital capacity measuring and repairing instrument for lead acid accumulator |
| CN203632574U (en) * | 2013-11-04 | 2014-06-04 | 深圳市绿合源环保科技有限公司 | Impulsing power supply circuit and storage battery repair pulse signal source |
| CN106129500A (en) * | 2016-08-31 | 2016-11-16 | 海赛普新能源高科技（江苏）有限公司 | A kind of old method for restoring lead-acid battery |
-
2018
- 2018-08-23 CN CN201810978214.4A patent/CN110858669A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006057083A1 (en) * | 2004-11-26 | 2006-06-01 | Pulsetech Japan Corporation | Used lead battery regenerating/new lead battery capacity increasing method |
| CN200950460Y (en) * | 2006-09-22 | 2007-09-19 | 北京清大华美环保节能技术研究院 | System for detecting and recovering lead-acid accumulator |
| CN101222073A (en) * | 2007-12-19 | 2008-07-16 | 江南大学 | Digital capacity measuring and repairing instrument for lead acid accumulator |
| CN203632574U (en) * | 2013-11-04 | 2014-06-04 | 深圳市绿合源环保科技有限公司 | Impulsing power supply circuit and storage battery repair pulse signal source |
| CN106129500A (en) * | 2016-08-31 | 2016-11-16 | 海赛普新能源高科技（江苏）有限公司 | A kind of old method for restoring lead-acid battery |
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