CN103943904A - Integrated maintenance instrument for storage battery and method for preventing deterioration of storage battery in storage and transportation period - Google Patents
Integrated maintenance instrument for storage battery and method for preventing deterioration of storage battery in storage and transportation period Download PDFInfo
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- CN103943904A CN103943904A CN201410176597.5A CN201410176597A CN103943904A CN 103943904 A CN103943904 A CN 103943904A CN 201410176597 A CN201410176597 A CN 201410176597A CN 103943904 A CN103943904 A CN 103943904A
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- storage battery
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- sulphur removal
- pulse
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- 238000012423 maintenance Methods 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000006866 deterioration Effects 0.000 title abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 15
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 114
- 239000005864 Sulphur Substances 0.000 claims description 113
- 238000005987 sulfurization reaction Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000005070 sampling Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 6
- 238000013480 data collection Methods 0.000 abstract 5
- 238000006477 desulfuration reaction Methods 0.000 abstract 3
- 230000023556 desulfurization Effects 0.000 abstract 3
- 239000003990 capacitor Substances 0.000 description 26
- 238000006243 chemical reaction Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 6
- 102100038026 DNA fragmentation factor subunit alpha Human genes 0.000 description 5
- 101710182628 DNA fragmentation factor subunit alpha Proteins 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 230000002427 irreversible effect Effects 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 230000005669 field effect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 101000969581 Homo sapiens MOB kinase activator 1A Proteins 0.000 description 1
- 102100021437 MOB kinase activator 1A Human genes 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000019635 sulfation Effects 0.000 description 1
- 238000005670 sulfation reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- 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
- H01M10/4285—Testing apparatus
-
- 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
- H01M10/44—Methods for charging or discharging
-
- 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
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
Abstract
The invention relates to an integrated maintenance instrument for a storage battery and a method for preventing deterioration of the storage battery in a storage and transportation period. The maintenance instrument comprises a central control and computation unit, a data collection/output mode selection unit, a desulfurization/charging mode selection unit, a pulse/charging generation unit and an output unit, wherein the central control and computation unit and the data collection/output mode selection unit are respectively connected with a data collection unit. The central control and computation unit sends out a corresponding command to control the data collection unit or the output unit to work, thereby completing data collection of the storage battery, balanced charging of the storage battery or pulsed desulfurization of the storage battery. By adopting the method, the influence of self-discharge of the battery can be effectively overcome, the deterioration of the battery in the storage and transportation period can be effectively prevented, and the manual intervention is not required in the whole process; through the three-stage combined maintenance way of detection protection, balanced charging and pulsed desulfurization adopted by the integrated maintenance instrument for the storage battery, the deterioration of the battery can be effectively eliminated, the lost battery performances are restored and the battery can be always kept in an optimal state in the storage and transportation period.
Description
Technical field
The invention belongs to electronic information technical field, relate to a kind of lead acid accumulator comprehensive intelligent management equipment that harvests the collection of battery major parameter and Network Transmitting, recovers online deteriorated accumulator property, particularly a kind of batteries integrated maintenance instrument; The invention still further relates to a kind of this integrated maintenance instrument that utilizes and prevent the deteriorated method of accumulating phase storage battery.
Background technology
That the solids valve control sealed lead acid battery being used widely in each systems such as communication, electric power, bank, railways has is lightweight, take up an area less, pollute the outstanding advantages such as little, few maintenance.But lead acid accumulator can produce self-discharge phenomenon in the accumulating phase after producing, if processed not in time, cause battery for a long time under power shortage state, will form lead sulfate crystallization and sulfuration gradually, the time is longer, and state of cure (vulcanization) is more serious.Because the otherness of battery causes every batteries state of cure (vulcanization) different, after storage battery comes into operation, rectifier starts to batteries charging, the curingprocess rate of battery can slow down, but normal charge cannot restore the established sulfuration crystallization of accumulating phase, therefore the sulfuration hard defects of accumulating phase formation cannot be eliminated by conventional charging, the lead sulfate crystallization forming is irreversible, and the sulfuration hard defects that battery formed in the accumulating phase have existed that battery is deteriorated in the accumulating phase in other words.
Summary of the invention
The object of this invention is to provide a kind of storage battery integrated maintenance instrument, can prevent deteriorated in the accumulating phase of storage battery.
Another object of the present invention is to provide a kind ofly utilizes above-mentioned integrated maintenance instrument to prevent the method that the storage battery accumulating phase is deteriorated.
For achieving the above object, the technical solution adopted in the present invention is: a kind of storage battery integrated maintenance instrument, comprises the center-control and computing unit, data acquisition/output mode selected cell, sulphur removal/charge mode selected cell, pulse/charging generating unit and the output unit that are connected successively; Center-control and computing unit are connected with data acquisition unit respectively with data acquisition/output mode selected cell.
Another technical scheme of the present invention is: a kind ofly utilize above-mentioned storage battery integrated maintenance instrument to prevent the deteriorated method of accumulating phase storage battery, connect row by storage battery multiple storage batterys are composed in series to secondary battery unit, then by the power interface incoming transport civil power 220V of storage battery integrated maintenance instrument, the equipment output/acquisition interface of storage battery integrated maintenance instrument is connected with the both positive and negative polarity of each storage battery by many output cables; The current sample interface of storage battery integrated maintenance instrument is connected to Hall current sensor, for the sampling of current signal; PC com interface is connected with the RS-232 interface of storage battery integrated maintenance instrument, prevents the deteriorated technique of accumulating phase storage battery, be specially:
Step 1: issue every parameter preset by PC to storage battery integrated maintenance instrument, comprise and detect protection-equalizing charge switching threshold, equalizing charge-pulse sulphur removal switching threshold and pulse sulphur removal-equalizing charge switching threshold; After setting completes, restart storage battery integrated maintenance instrument;
Step 2: first detect protection, send data acquisition signal by center-control and computing unit, the data acquisition signal that data acquisition/output mode selected cell sends center-control and computing unit passes to data acquisition unit, data acquisition unit carries out data acquisition to multiple storage batterys, and the data that collect are sent to center-control and computing unit, center-control and computing unit compare the data that receive and the detection protection-equalizing charge switching threshold setting in advance: if the data of the storage battery collecting do not exceed the detection protection-equalizing charge switching threshold setting in advance, continue to detect protection, if the data of the storage battery collecting exceed the detection protection-equalizing charge switching threshold setting in advance, enter the equalizing charge stage, be that center-control and computing unit send equalizing charge signal, this equalizing charge signal is passed to sulphur removal/charge mode selected cell by data acquisition/output mode selected cell, sulphur removal/charge mode selected cell produces according to the signal controlling pulse/charging generating unit receiving and carries equalizing charge voltage to output unit, output unit carries out equalizing charge to storage battery, reach after the equalizing charge time, center-control and computing unit send and stop charging signals, data acquisition/output mode selected cell will stop charging signals and pass to sulphur removal/charge mode selected cell, sulphur removal/charge mode selected cell control impuls/charging generating unit stops carrying equalizing charge voltage to output unit, equalizing charge process finishes,
Step 3: after equalizing charge finishes, center-control and computing unit send data acquisition signal, data acquisition/output mode selected cell is according to this data acquisition signal, log-on data collecting unit, data acquisition unit carries out data acquisition to storage battery again, and the data that collect are sent to center-control and computing unit, center-control and computing unit compare the data that receive and the equalizing charge-pulse sulphur removal change-over gate limit value setting in advance: if the data that collect do not exceed equalizing charge-pulse sulphur removal change-over gate limit value, enter the protection stage of detecting, if the data that collect exceed equalizing charge-pulse sulphur removal change-over gate limit value, start the pulse sulphur removal stage, be that center-control and computing unit send pulse sulphur removal signal, this pulse sulphur removal signal is passed to sulphur removal/charge mode selected cell by data acquisition/output mode selected cell, sulphur removal/charge mode selected cell produces according to the pulse sulphur removal signal controlling pulse/charging generating unit receiving and carries sulphur removal pulse to output unit, output unit carries out pulse sulphur removal to storage battery, reach after the pulse sulphur removal time, center-control and computing unit send and stop sulphur removal signal, data acquisition/output mode selected cell will stop sulphur removal signal and pass to sulphur removal/charge mode selected cell, sulphur removal/charge mode selected cell stops carrying sulphur removal pulse to output unit according to the signal controlling pulse/charging generating unit receiving, pulse sulphur removal finishes,
Step 4: after pulse sulphur removal finishes, data acquisition unit carries out data acquisition to storage battery again, and the data of the storage battery collecting are sent to center-control and computing unit, center-control and computing unit compare the data that receive and the pulse sulphur removal-equalizing charge change-over gate limit value setting in advance: if the data that collect exceed the pulse sulphur removal-equalizing charge change-over gate limit value setting in advance, proceed pulse sulphur removal; If the data that collect do not exceed the pulse sulphur removal-equalizing charge change-over gate limit value setting in advance, proceed to the equalizing charge stage, offset the battery makeup energy of removing after sulfuration and recover deteriorated.
The present invention prevents that deteriorated method of storage battery accumulating phase from having the following advantages:
1, the method can effectively overcome self-discharge of battery impact, remains that accumulating phase battery, in optimum state, effectively prevents accumulating phase deterioration of battery.
2, accumulating cycle length is safeguarded and is not affected completely the accumulating of storage battery, and reduced greatly battery service difficulty to the maintenance whole process of storage battery without manual intervention the accumulating phase.
3, for there is not deteriorated accumulating phase battery, the method can effectively suppress deterioration of battery process; And for occurring deteriorated accumulating phase battery; the three stages combination maintenance method of the detection protection+equalizing charge+pulse sulphur removal adopting by storage battery integrated maintenance instrument; also can effectively eliminate deterioration of battery, recover the battery performance that lost, make battery performance rise to factory state.
Brief description of the drawings
Fig. 1 is the structural representation of integrated maintenance instrument of the present invention;
Fig. 2 is the circuit theory diagrams of power supply unit in integrated maintenance instrument of the present invention;
Fig. 3 is the circuit theory diagrams of center-control and computing unit in integrated maintenance instrument of the present invention;
Fig. 4 is the circuit theory diagrams of data transmission unit in integrated maintenance instrument of the present invention;
Fig. 5 is the circuit theory diagrams of data acquisition/output mode selected cell and sulphur removal/charge mode selected cell in integrated maintenance instrument of the present invention;
Fig. 6 is data acquisition unit circuit theory diagrams in integrated maintenance instrument of the present invention;
Fig. 7 is the circuit theory diagrams of pulse/charging generating unit in integrated maintenance instrument of the present invention;
Fig. 8～Figure 12 is the circuit theory diagrams of output unit in integrated maintenance instrument of the present invention;
Figure 13 is the use state diagram of integrated maintenance instrument of the present invention;
Figure 14 is the flow chart of the inventive method.
In Fig. 1 and Figure 13: 1. power supply unit, 2. center-control and computing unit, 3. data transmission unit, 4. data acquisition/output mode selected cell, 5. sulphur removal/charge mode selected cell, 6. data acquisition unit, 7. pulse/charging generating unit, 8. output unit, 9. secondary battery unit, 10. integrated maintenance instrument, 11. switch/router, 12. storage batterys, 13. power interfaces, 14. equipment output/acquisition interface, 15. current sample interfaces, 16. equipment cascading interfaces, 17.RS-232 interface, 18. network communication interfaces, 19. outputs regulate interface, 20. ground holes, 21. output cables, 22. storage batterys connect row, 23. netting twines, 24.RJ45 interface.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, integrated maintenance instrument of the present invention, comprises the center-control and computing unit 2, data acquisition/output mode selected cell 4, sulphur removal/charge mode selected cell 5, pulse/charging generating unit 7 and the output unit 8 that are connected successively; Center-control and computing unit 2 are connected with data acquisition unit 6 with data transmission unit 3 respectively; Data acquisition/output mode selected cell 4 is connected with data acquisition unit 6, this integrated maintenance instrument also comprises power supply unit 1, and power supply unit 1 is connected with output unit 8 with center-control and computing unit 2, data transmission unit 3, data acquisition/output mode selected cell 4, sulphur removal/charge mode selected cell 5, pulse/charging generating unit 7, collecting unit 6 respectively.
When use, collecting unit 6 is connected with secondary battery unit 9 with output unit 8.
Power supply unit 1, provides electric energy for other each unit of giving this integrated maintenance instrument;
Center-control and computing unit 2, select data acquisition state or output mode state for controlling data acquisition/output mode selected cell 4; In the time that data acquisition/output mode selected cell 4 is selected data acquisition state, data acquisition unit 6 gathers every operational factor of secondary battery unit 9, and the parameter collecting is transferred to center-control and computing unit 2; Center-control and computing unit 2 gather after the data that comprise the every operational factor of storage battery and device numbering, collection date and time that rear formation one frame is complete the operational factor receiving, by this transfer of data obtaining to data transmission unit 3; Meanwhile, after center-control and computing unit 2 are analyzed the every operational factor of the storage battery receiving, produce and trigger sulphur removal/charge mode signal or data acquisition scheme signal, and the signal of generation is transferred to collection/output mode selected cell 4;
Collection/output mode selected cell 4, the data acquisition signal of carrying for receiving center-control and computing unit 2, is transferred to data acquisition unit 6 by this control signal; Triggering sulphur removal/charge mode signal of carrying for receiving center-control and computing unit 2, receives after this signal, sends the signal of control sulphur removal/charge mode selected cell 5 output mode states;
Sulphur removal/charge mode selected cell 5, for receiving the signal of control sulphur removal/charge mode selected cell 5 output mode states that collection/output mode selected cell 4 sends, under output mode state, export sulphur removal pulse control signal or equalizing charge voltage control signal according to the signal receiving, and sulphur removal pulse control signal or equalizing charge voltage control signal are flowed to pulse/charging generating unit 7;
Pulse/charging generating unit 7, the sulphur removal pulse control signal or the equalizing charge voltage control signal that send for receiving sulphur removal/charge mode selected cell 5, produce and carry corresponding battery vulcanization removing pulse or storage battery equalizing charge voltage to output unit 8;
Output unit 8, for exporting sulphur removal pulse or equalizing charge voltage;
Data transmission unit 3, the data that transmit for receiving center-control and computing unit 2, and the data that receive are carried out to data transmission by network.
As shown in Figure 2, the circuit of power supply unit 1 in integrated maintenance instrument of the present invention, comprise the first chip U1, the second chip U2 and the 3rd chip U3, the first chip U1 is AC220V-DC ± 12V power conversion chip (PA+12), the second chip U2 is DC48-12V power conversion chip (P+12), and the 3rd chip U3 is DC12-5V power conversion chip (P).The pin 2 of the first chip U1 and the pin 1 of the second chip U2 meet respectively the first power access end AC6, the pin 3 of the first chip U1 and the pin 2 of the second chip U2 meet respectively second source incoming end AC5, voltage is after the power interface 13 of externally fed power supply from Figure 13 introduced, receive power access end AC5 and power access end AC6, in two kinds of situation:
If 1 external power source is alternating current 220V, AC5 directly accesses the 3rd pin of the first chip U1, and AC6 directly accesses the 2nd pin of the first chip U1, obtains DC-12V at the 4th pin of the first chip U1, and the 8th pin of the first chip U1 obtains DC+12V; The 8th pin of the first chip U1 connects the 1st pin of the 3rd chip U3 as input, and the 3rd pin output of the 3rd chip U3 obtains DC+5V, supplies stable working power to the unit in this integrated maintenance instrument.
If 2 external power sources are DC48V, AC5 directly accesses the 2nd pin of the second chip U2, AC6 directly accesses the 1st pin of the second chip U2, the 5th pin at the second chip U2 obtains DC-12V, the 3rd pin of the second chip U2 obtains DC+12V, the 3rd pin of the second chip U2 connects the 1st pin of the 3rd chip U3 as input, and the 3rd pin output of the 3rd chip U3 obtains DC+5V, supplies stable working power to unit in this integrated maintenance instrument.
The circuit of center-control and computing unit 2 in integrated maintenance instrument of the present invention, as shown in Figure 3, comprises four-core sheet U4, and four-core sheet U4 adopts STC90C58AD single-chip microcomputer (ICCPU); The 38th connect+5V of the pin voltage of four-core sheet U4, the 16th pin welding system ground of four-core sheet U4, forms the power supply of four-core sheet U4; The 14th pin of four-core sheet U4 is connected the outer clock circuit being made up of the first capacitor C c1, the second capacitor C c2 and crystal oscillator JTc with the 15th pin; Resistance R ST connects the 4th pin of four-core sheet U4, forms reset circuit of SCM; The 2nd pin of four-core sheet U4 and the 3rd pin are as the 9th pin and the 10th pin of the 5th chip U5 in serial ports difference connection layout 4, and the 5th chip U5 is serial port chip ICRS; The 1st pin, the 17th pin～37th pin and the 39th～44th pin of four-core sheet U4, as I/O mouth, are connected to respectively the position in output unit 8 in Fig. 8～Figure 11 with identical network label, by drive circuit, to control the break-make of each relay; The 19th pin of the 8th chip U8 in the 8th pin map interlinking 6 of four-core sheet U4, as the clock of modulus conversion chip ICAD; The 18th pin of modulus conversion chip ICAD in the 9th pin map interlinking 6 of four-core sheet U4, as the chip selection signal of modulus conversion chip ICAD; The 10th pin of four-core sheet U4 and the 11st pin connect respectively the 17th pin and the 15th pin of modulus conversion chip ICAD, as the data input/output terminal of modulus conversion chip ICAD.
The circuit of data transmission unit 3 in integrated maintenance instrument of the present invention, as shown in Figure 4, comprises the 5th chip U5, the 6th chip U6 and the 7th chip U7; The 5th chip U5 is MAX232 serial data communication chip (ICRS), and the 6th chip U6 is that RS-232 turns TCP/IP association's revolving die piece (TDXZ), and the 7th chip U7 is wireless association's revolving die piece (CDMA).Explanation in two kinds of situation:
1) if transfer of data adopts wired mode, the 2nd pin of four-core sheet U4 and the 3rd pin connect respectively the 8th pin and the 7th pin of the 6th chip U6, by the network communication interface 18 in the 22nd pin, the 23rd pin, the 25th pin and the 26th pin map interlinking 13 of the 6th chip U6, data are transmitted with wired mode by this interface.
The 31st pin connecting resistance Rmob of the 6th chip U6, this resistance R mob connecting luminous diode MOB1; The 29th pin connecting resistance Rlan of the 6th chip U6, this resistance R lan connecting luminous diode LAN1; The 28th pin connecting resistance Rtsl, this resistance R tsl connecting luminous diode TSL2 of the 6th chip U6, composition association turns working state indicating circuit.
2) if transfer of data adopts wireless mode, the 2nd pin of four-core sheet U4 and the 3rd pin connect respectively the 9th pin and the 10th pin of the 5th chip U5, after the 5th chip U5 changes level, the 7th pin by the 5th chip U5 and the 8th pin connect respectively the 3rd pin and the 2nd pin of the 7th chip U7, by the mode of wireless transmission, data are transmitted.
The boostrap circuit of electric capacity Er1, electric capacity Er2, electric capacity Er3 and electric capacity Er4 composition the 5th chip U5 in data transmission unit 3; Resistance R 2f, triode T2a, resistance R 2g, light-emitting diode TX2 composition com-state indicating circuit.
The circuit of data acquisition/output mode selected cell 4 and sulphur removal/charge mode selected cell 5 in integrated maintenance instrument of the present invention, as shown in Figure 5, comprises relay J cc, relay J 12p and field effect transistor M1.The 43rd pin of four-core sheet U4 forms drive circuit by resistance R jc21, the triode Tjc21, the Darlington transistor ICjc1 that are connected successively in Fig. 8.The 10th pin of the 14th pin cut-in relay Jcc of Darlington transistor ICjc1, with the break-make of control relay Jcc, thereby is operated under data acquisition scheme or output mode this integrated maintenance instrument.
The 44th pin of four-core sheet U4 forms drive circuit by resistance R jc22, the triode Tjc22, the Darlington transistor ICjc1 that are connected successively in Fig. 8; The 10th pin of the 15th pin cut-in relay J12P of Darlington transistor ICjc1, with the break-make of control relay J12P, thereby is operated under sulphur removal output mode or charging output mode this integrated maintenance instrument.
The 2nd pin of relay J 12P connects adjustable resistance RW upper end, the 4th pin of relay J 12P connects adjustable resistance RM upper end, adjustable resistance RW lower end and adjustable resistance RM lower end are all connected to the 2nd pin of two core white terminal CDQ, and the 3rd pin of relay J 12P is connected to the 1st pin of two core white terminal CDQ; Two core white terminal CDQ are connected to the white terminal CDQ2 in Fig. 7.The adjustment knobs of the adjustment knobs of adjustable resistance RW and adjustable resistance RM is connected to output in Figure 13 and regulates interface 19, for control chart 7 the 9th chip U9(charging module Module1) sulphur removal peak value of pulse or charging voltage output valve.
The circuit of data acquisition unit 6, as shown in Figure 6, comprises current sample interface HR, relay J QH and the 8th chip U8, and the 8th chip U8 is 12 bits serial A/D transducer MAX186.Control relay circuit is made up of the resistance R jc23 shown in this relay J QH and Fig. 8, triode Tjc23 and Darlington transistor ICjc1, when relay J QH receive four-core sheet U4 the 1st pin cut off order time switch.Explanation in two kinds of situation:
1), in the time that storage battery 12 is 2V storage battery, the 1st pin of four-core sheet U4 forms drive circuit by resistance R jc23, the triode Tjc23, the Darlington transistor ICjc1 that connect successively in Fig. 8; The 16th foot control relay J QH processed of Darlington transistor ICjc1 opens node in often, the voltage acquisition of storage battery is not by the bleeder circuit of resistance R v1 and resistance R v2 composition, directly by the 2nd pin of the relay J cc in Fig. 5 collection/output mode selected cell 4, through the filter circuit being formed by resistance R v5, resistance R v6, resistance R v7, capacitor C v1, capacitor C v2, capacitor C v3, electrochemical capacitor Ev1, electrochemical capacitor Ev2, electrochemical capacitor Ev3 and electrochemical capacitor Ev4, the 1st pin that is connected to the 8th chip U8, completes the analog-to-digital conversion to battery tension signal.
2), in the time that storage battery is 12V storage battery, the 1st pin of four-core sheet U4 forms drive circuit by resistance R jc23, the triode Tjc23, the Darlington transistor ICjc1 that connect successively in Fig. 8; The 16th foot control relay J QH processed of Darlington transistor ICjc1 is in normally closed node, the voltage acquisition of storage battery is by the bleeder circuit of resistance R v1 and resistance R v2 composition, again by the 2nd pin of the relay J cc in Fig. 5 collection/output mode selected cell 4, process is by resistance R v5, resistance R v6, resistance R v7, the filter circuit of capacitor C v1, capacitor C v2, capacitor C v3, electrochemical capacitor Ev1, electrochemical capacitor Ev2, electrochemical capacitor Ev3 and electrochemical capacitor Ev4 composition, the 1st pin that is connected to the 8th chip U8, completes the analog-to-digital conversion to battery tension signal.
Resistance R a3, resistance R a4, potentiometer Wa5 and capacitor C a2 are the sampling reference circuit of 12V storage battery; Resistance R a1, resistance R a2, potentiometer Wa4 and capacitor C a1 are the sampling reference circuit of 2V storage battery, by the break-make of four-core sheet U4 control relay JQH, access the 12nd pin of the 8th chip U8 according to the electric pressure control of storage battery.
Current sample interface HR(is the current sample interface 15 in Figure 13) can connect two-way Hall current sensor, by Hall current sensor, electric current sampled and be converted to voltage signal, the 3rd pin by current sample interface HR connects the filtering and the bleeder circuit that are made up of resistance R i1, resistance R il1, capacitor C i11 and capacitor C il2, is connected to the 2nd pin of the 8th chip U8; The 2nd pin by current sample interface HR connects the filtering and the bleeder circuit that are made up of resistance R i2, resistance R i12, capacitor C i21 and capacitor C i22, is connected to the 3rd pin of the 8th chip U8, completes the analog-to-digital conversion to current data.
Resistance R _ f d1, resistance R _ f d2, resistance R _ f d3, resistance R _ f d4, triode Tfd1 and triode Tfd2 composition are let out can circuit, and the 1st pin of the 6th foot control system the 8th chip U8 by four-core sheet U4 discharges.In the time that sampling finishes, the residual amount of energy of the 8th chip U8 the 1st pin is discharged, avoid causing mistake sampling.
The circuit of pulse/charging generating unit 7, as shown in Figure 7, comprises the 9th chip U9, the tenth chip U10, the 11 chip U11 and field effect transistor M1; The 9th chip U9 is charging module Module1, and the tenth chip U10 is that photoelectrical coupler ICxm1(model is 521-2), isolate for electricity; The 11 chip U11 is STC89C2051 single-chip microcomputer (CPUab).The 4th pin of the 11 chip U11 is connected with the 5th pin the outer clock circuit being made up of crystal oscillator JT1, capacitor C ca and capacitor C cb, as the clock signal of singlechip CPU ab; Resistance R cab is connected to the 1st pin of the 11 chip U11, composition reset circuit of SCM; The 2nd pin and the 3rd pin of the 11 chip U11 are connected to four terminal XCK1, for singlechip CPU ab is write to journey.
Charging module Module1 input is, after the power interface 13 of externally fed power supply from Figure 13 introduced, to receive AC5, AC6 power input.When relay J 12P is during in normally closed node, charging module Module1 output equalizing charge voltage; When relay J 12P is in the time often opening node, the 12nd pin and the 13rd pin by the 11 chip U11 are connected to the control circuit being made up of resistance R k11, resistance R k12, resistance R x11, resistance R x12, resistance R mx1, capacitor C JS1, capacitor C JS2, triode TK11, triode TK12 and the tenth chip U10, by the break-make control to field effect transistor M1, control charging module Module1 and produce sulphur removal pulse.
Output unit 8, as shown in Fig. 8～Figure 12, comprise triode Tjc1～Tjc23, triode Tjc00～Tjc04, Darlington transistor ICjc1～ICjc4, relay J a1～Ja4, relay J b1～Jb4, relay J c1～Jc4, relay J d1～Jd4, relay J e1～Je4, relay J f1～Jf4 and 5 output/Sampling Interface BEa～BEe.
5 output/Sampling Interface BEa～BEe form the output/acquisition interface 14 of integrated maintenance instrument jointly, are connected to each storage battery 12 by output cable 21; Each I/O mouth of four-core sheet U4, the 1st pin of four-core sheet U4, the 17th pin～37th pin, the 39th pin～44th pin are by triode Tjc1～Tjc23, Tjc00～Tjc04, the drive circuit of Darlington transistor ICjc1～ICjc4 composition, timesharing is adhesive or the disconnection of control relay Ja1～Ja4, relay J b1～Jb4, relay J c1～Jc4, relay J d1～Jd4, relay J e1～Je4 and relay J f1～Jf4 successively, realizes timesharing circulation output or the data sampling of equipment to each accumulator output end mouth.
Darlington transistor ICj1～ICj4 Main Function is to improve driving force, and model is ULN2003.
The present invention also provides a kind of and has utilized above-mentioned integrated maintenance instrument to prevent the deteriorated method of accumulating phase storage battery, first connect row 22 by storage battery multiple storage batterys 12 are composed in series to secondary battery unit 9, then integrated maintenance instrument 10 of the present invention is connected with switch/router 11, as shown in figure 13; By the power interface of integrated maintenance instrument 10 13 incoming transport civil power 220V, the equipment output/acquisition interface 14 of integrated maintenance instrument 10 is connected with the both positive and negative polarity of each storage battery 12 by many output cables 21; The current sample interface 15 of integrated maintenance instrument 10 is connected to Hall current sensor, for the sampling of current signal; If connect storage battery 12 quantity and exceed 24 joints, equipment cascading interface 16 is connected to an other integrated maintenance instrument 10; If connect storage battery 12 quantity and do not exceed 24 joints, equipment cascading interface 16 does not connect; Network communication interface 18 is connected to the RJ45 interface 24 of switch/router 11 by netting twine 23; Ground hole 20 is connected to machine room the earth by earth connection.
After above-mentioned each line completes, after PC com interface is connected with the RS-232 interface 17 of integrated maintenance instrument 10 by RS-232 line, can carry out the deteriorated technique of the accumulating phase that prevents storage battery as shown in figure 14, be specially:
Step 1: issue every parameter preset by PC to storage battery integrated maintenance instrument 10, comprise and detect protection-equalizing charge switching threshold, equalizing charge-pulse sulphur removal switching threshold and pulse sulphur removal-equalizing charge switching threshold; After setting completes, restart storage battery integrated maintenance instrument 10, regulate interface 19 to finely tune after (the charging voltage standard value providing according to battery producer is adjusted) output pulse and charging voltage by the output of lead-acid batteries integrated maintenance instrument 10, the online integrated maintenance instrument 10 of lead-acid batteries starts life's work;
Step 2: after storage battery integrated maintenance instrument 10 is started working, first in detecting the protection stage, send data acquisition signal by center-control and computing unit 2, the data acquisition signal that data acquisition/output mode selected cell 4 sends center-control and computing unit 2 passes to data acquisition unit 6, data acquisition unit 6 carries out data acquisition and the data that collect is sent to center-control and computing unit 2 multiple storage batterys 12 according to the data acquisition signal receiving, the data of the each storage battery 12 collecting that center-control and computing unit 2 send the data acquisition unit receiving 6 compare with the detection protection-equalizing charge switching threshold setting in advance, whether battery be there is to the deteriorated judgement of analyzing: if the data of the storage battery collecting 12 do not exceed the detection protection-equalizing charge switching threshold setting in advance, illustrate that storage battery 12 does not occur deteriorated, continue to loop above-mentioned detection protection process, if the data of the storage battery collecting 12 exceed the detection protection-equalizing charge switching threshold setting in advance, illustrate that storage battery 12 occurs deteriorated, enter the equalizing charge stage, be that center-control and computing unit 2 send equalizing charge signal, by data acquisition/output mode selected cell 4, this equalizing charge signal is passed to sulphur removal/charge mode selected cell 5, sulphur removal/charge mode selected cell 5 produces and carries equalizing charge voltage to output unit 8 according to the signal controlling pulse/charging generating unit 7 receiving, complete the equalizing charge of storage battery is worked by output unit 8, the time length of equalizing charge is determined according to each joint monomer battery voltage value and the departure degree that detects protection-equalizing charge change-over gate limit value by center-control and computing unit 2, reach after the equalizing charge time, center-control and computing unit 2 send and stop charging signals, to stop charging signals by data acquisition/output mode selected cell 4 and pass to sulphur removal/charge mode selected cell 5, sulphur removal/charge mode selected cell 5 stops carrying equalizing charge voltage to output unit 8 according to the signal controlling pulse/charging generating unit 7 receiving, equalizing charge process finishes,
Step 3: after equalizing charge process finishes, center-control and computing unit 2 send data acquisition signal, data acquisition/output mode selected cell 4 is according to this data acquisition signal, log-on data collecting unit 6, data acquisition unit 6 carries out data acquisition to storage battery 12 again, and the data of the storage battery collecting 12 are sent to center-control and computing unit 2, center-control and computing unit 2 compare the data that receive and the equalizing charge-pulse sulphur removal change-over gate limit value setting in advance, judge whether deterioration of battery recovers: if the data of the storage battery collecting 12 do not exceed equalizing charge-pulse sulphur removal change-over gate limit value, illustrate that storage battery 12 has recovered, enter the protection stage of detecting, if the data of the storage battery collecting 12 exceed equalizing charge-pulse sulphur removal change-over gate limit value, illustrate that storage battery 12 recovers not yet, there is sulfuration in storage battery 12, start the pulse sulphur removal stage, be that center-control and computing unit 2 send pulse sulphur removal signal, this pulse sulphur removal signal is passed to sulphur removal/charge mode selected cell 5 by data acquisition/output mode selected cell 4, sulphur removal/charge mode selected cell 5 produces and carries sulphur removal pulse to output unit 8 according to the pulse sulphur removal signal controlling pulse/charging generating unit 7 receiving, complete the pulse sulphur removal of storage battery 12 is worked by output unit 8, the time length of pulse sulphur removal is determined according to the departure degree of each joint monomer battery voltage value and equalizing charge-pulse sulphur removal change-over gate limit value by center-control and computing unit 2, reach after the pulse sulphur removal time, center-control and computing unit 2 send and stop sulphur removal signal, to stop sulphur removal signal by data acquisition/output mode selected cell 4 and pass to sulphur removal/charge mode selected cell 5, sulphur removal/charge mode selected cell 5 stops carrying sulphur removal pulse to output unit 8 according to the signal controlling pulse/charging generating unit 7 receiving, pulse sulphur removal process finishes,
Step 4: after pulse sulphur removal process finishes, data acquisition unit 6 carries out data acquisition to storage battery 12 again, and the data of the storage battery collecting 12 are sent to center-control and computing unit 2, center-control and computing unit 2 compare the data of the storage battery receiving 12 and the pulse sulphur removal-equalizing charge change-over gate limit value setting in advance, judge whether battery sulfuration is eliminated: if the data of the storage battery collecting 12 exceed the pulse sulphur removal-equalizing charge change-over gate limit value setting in advance, the sulfuration that storage battery 12 is described is not eliminated, proceed pulse sulphur removal, if the data of the storage battery collecting 12 do not exceed the pulse sulphur removal-equalizing charge change-over gate limit value setting in advance, illustrate that the sulfuration of storage battery 12 is eliminated, proceed to the equalizing charge stage, offset the battery makeup energy of removing after sulfuration and recover deteriorated.
The principle of the inventive method: the deteriorated of accumulating phase storage battery is mainly because self-discharge of battery causes.Self-discharge of battery itself can not cause storage battery to occur irreversible deteriorated (can recover the battery capacity loss that causes because of self discharge by charging), if but self discharge causes storage battery to fail to supplement in time electricity after power shortage state, can produce battery sulfation, and battery sulfuration is irreversible (also cannot recover by common charging process it is deteriorated), and storage battery integrated maintenance instrument of the present invention prevents that storage battery is in deteriorated method of accumulating phase, produce deteriorated main cause for above battery in the accumulating phase just, protect (judging whether battery occurs deteriorated)+equalizing charge (energy content of battery loss that self discharge is caused supplements)+pulse sulphur removal (to carry out devulcanization processing to vulcanizing battery by detection, make irreversible become reversible) three online maintenance technologies of stage, prevent that storage battery is deteriorated in the accumulating phase, compared with conventional method, there is maintenance efficiency high, the features such as maintenance workload is little.
The maintenance method of traditional storage battery accumulating phase is: in storage and transport process, every 1～2 month, battery is once supplemented to electricity, prevent the deterioration of battery that battery causes because of self discharge.But there is following drawback in this method:
1, battery is because of its self discharge degree of individual difference difference itself, and the serious cell of self discharge vulcanizes already before supplementary electricity, even also cannot recover its deterioration condition by regular supplementary electricity.
2, battery is different because of instructions for use, and short two or three months of storage life, what have reaches the several years.For the battery of long term storage, the periodic charge guarantee battery that traditional method need to be carried out repeatedly can not lose efficacy, and maintenance period is long, maintenance difficulties is large.
3, the average self discharge amount of battery is about 2%/sky, once battery period of greater than two months does not carry out supplementing in time electricity, battery performance can even be scrapped by continuous decrease, this will badly influence the serviceability of battery, therefore needs attendant to drop into great carefulness and the patient guarantee battery possibility of charging in time.
And the inventive method is by adding holding storage battery integrated maintenance instrument to accumulating phase storage battery, first utilize the detection defencive function of storage battery integrated maintenance instrument, understand in real time the degradation of accumulating phase storage battery, once it is deteriorated to find that battery occurs, the equalizing charge function of starting storage battery integrated maintenance instrument is carried out performance recovery (for storage battery just because of self discharge generation capacity loss to deteriorated storage battery immediately, not yet produce the situation of sulfuration), if equalizing charge still cannot recover deterioration of battery, it is (serious for storage battery self discharge that the pulse of starting storage battery integrated maintenance instrument immediately removes sulfur functional, produce the situation of sulfuration), until battery sulfuration is eliminated, stop pulse sulphur removal, proceed to the equalizing charge stage, offset after the timely makeup energy of battery except sulfuration, proceed to the protection stage of detecting.Said process moves in circles and carries out, and the conversion and control that detects protection, equalizing charge, pulse sulphur removal process is equipment and automatically completes, and operates without manual intervention.
Claims (7)
1. a storage battery integrated maintenance instrument, it is characterized in that, comprise the center-control and computing unit (2), data acquisition/output mode selected cell (4), sulphur removal/charge mode selected cell (5), pulse/charging generating unit (7) and the output unit (8) that are connected successively; Center-control and computing unit (2) are connected with data acquisition unit (6) respectively with data acquisition/output mode selected cell (4).
2. batteries integrated maintenance instrument according to claim 1, is characterized in that, described center-control and computing unit (2) are connected with data transmission unit (3).
3. according to batteries integrated maintenance instrument described in claim 1 or 2, it is characterized in that, this integrated maintenance instrument also comprises power supply unit (1), and power supply unit (1) is connected with other unit respectively, electric energy is provided to other unit.
4. utilize storage battery integrated maintenance instrument described in claim 1 to prevent the deteriorated method of accumulating phase storage battery, it is characterized in that, concrete steps are:
Step 1: connect row by storage battery multiple storage batterys are composed in series to secondary battery unit, then by the power interface incoming transport civil power 220V of storage battery integrated maintenance instrument, the equipment output/acquisition interface of storage battery integrated maintenance instrument is connected with the both positive and negative polarity of each storage battery by many output cables; The current sample interface of storage battery integrated maintenance instrument is connected to Hall current sensor, for the sampling of current signal; PC is connected with storage battery integrated maintenance instrument, issue every parameter preset by PC to storage battery integrated maintenance instrument, this parameter preset comprises detection protection-equalizing charge switching threshold, equalizing charge-pulse sulphur removal switching threshold and pulse sulphur removal-equalizing charge switching threshold; After setting completes, restart storage battery integrated maintenance instrument;
Step 2: first detect protection, send data acquisition signal by center-control and computing unit (2), the data acquisition signal that data acquisition/output mode selected cell (4) sends center-control and computing unit (2) passes to data acquisition unit (6), data acquisition unit (6) carries out data acquisition to multiple storage batterys (12), and the data that collect are sent to center-control and computing unit (2), center-control and computing unit (2) compare the data that receive and the detection protection-equalizing charge switching threshold setting in advance: if the data of the storage battery collecting (12) do not exceed the detection protection-equalizing charge switching threshold setting in advance, continue to detect protection, if the data of the storage battery collecting (12) exceed the detection protection-equalizing charge switching threshold setting in advance, enter the equalizing charge stage, be that center-control and computing unit (2) send equalizing charge signal, this equalizing charge signal is passed to sulphur removal/charge mode selected cell (5) by data acquisition/output mode selected cell (4), sulphur removal/charge mode selected cell (5) produces according to the signal controlling pulse/charging generating unit (7) receiving and carries equalizing charge voltage to output unit (8), output unit (8) carries out equalizing charge to storage battery, reach after the equalizing charge time, center-control and computing unit (2) send and stop charging signals, data acquisition/output mode selected cell (4) will stop charging signals and pass to sulphur removal/charge mode selected cell (5), sulphur removal/charge mode selected cell (5) control impuls/charging generating unit (7) stops carrying equalizing charge voltage to output unit (8), equalizing charge process finishes,
Step 3: after equalizing charge finishes, center-control and computing unit (2) send data acquisition signal, data acquisition/output mode selected cell (4) is according to this data acquisition signal, log-on data collecting unit (6), data acquisition unit (6) carries out data acquisition to storage battery (12) again, and the data that collect are sent to center-control and computing unit (2), center-control and computing unit (2) compare the data that receive and the equalizing charge-pulse sulphur removal change-over gate limit value setting in advance: if the data that collect do not exceed equalizing charge-pulse sulphur removal change-over gate limit value, enter the protection stage of detecting, if the data that collect exceed equalizing charge-pulse sulphur removal change-over gate limit value, start the pulse sulphur removal stage, be that center-control and computing unit (2) send pulse sulphur removal signal, this pulse sulphur removal signal is passed to sulphur removal/charge mode selected cell (5) by data acquisition/output mode selected cell (4), sulphur removal/charge mode selected cell (5) produces according to the pulse sulphur removal signal controlling pulse/charging generating unit (7) receiving and carries sulphur removal pulse to output unit (8), output unit (8) carries out pulse sulphur removal to storage battery (12), reach after the pulse sulphur removal time, center-control and computing unit (2) send and stop sulphur removal signal, data acquisition/output mode selected cell (4) will stop sulphur removal signal and pass to sulphur removal/charge mode selected cell (5), sulphur removal/charge mode selected cell (5) stops carrying sulphur removal pulse to output unit (8) according to the signal controlling pulse/charging generating unit (7) receiving, pulse sulphur removal finishes,
Step 4: after pulse sulphur removal finishes, data acquisition unit (6) carries out data acquisition to storage battery (12) again, and the data of the storage battery collecting (12) are sent to center-control and computing unit (2), center-control and computing unit (2) compare the data that receive and the pulse sulphur removal-equalizing charge change-over gate limit value setting in advance: if the data that collect exceed the pulse sulphur removal-equalizing charge change-over gate limit value setting in advance, proceed pulse sulphur removal; If the data that collect do not exceed the pulse sulphur removal-equalizing charge change-over gate limit value setting in advance, proceed to the equalizing charge stage, offset the battery makeup energy of removing after sulfuration and recover deteriorated.
5. prevent according to claim 4 the deteriorated method of accumulating phase storage battery, it is characterized in that, storage battery integrated maintenance instrument is connected with switch/router (11).
6. prevent according to claim 4 the deteriorated method of accumulating phase storage battery, it is characterized in that, if storage battery (12) quantity exceedes 24 joints, connect an other storage battery integrated maintenance instrument by the subtending port (16) of storage battery integrated maintenance instrument; Network communication interface (18) is connected to the RJ45 interface (24) of switch/router 11 by netting twine (23); Ground hole (20) is connected to machine room the earth by earth connection.
7. prevent according to claim 4 the deteriorated method of accumulating phase storage battery; it is characterized in that; in described step 2, the time length of equalizing charge is determined according to the magnitude of voltage of each joint cell 12 and the departure degree that detects protection-equalizing charge change-over gate limit value by center-control and computing unit (2).
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| CN104183877A (en) * | 2014-08-04 | 2014-12-03 | 李江波 | High-frequency harmonic impulse oscillating sulphur removal method for storage batteries and sulphur removal instrument |
| CN104242408A (en) * | 2014-10-08 | 2014-12-24 | 上海锦鹏科技有限公司 | Lead-acid battery management instrument with intervention in charging modes |
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Also Published As
| Publication number | Publication date |
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| CN103928721A (en) | 2014-07-16 |
| CN103943905A (en) | 2014-07-23 |
| CN103928721B (en) | 2016-04-13 |
| CN103943905B (en) | 2016-05-11 |
| CN103943904B (en) | 2016-05-11 |
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