CN2342507Y - Charging and discharging protector for DC operation power source - Google Patents

Charging and discharging protector for DC operation power source Download PDF

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Publication number
CN2342507Y
CN2342507Y CN 98238842 CN98238842U CN2342507Y CN 2342507 Y CN2342507 Y CN 2342507Y CN 98238842 CN98238842 CN 98238842 CN 98238842 U CN98238842 U CN 98238842U CN 2342507 Y CN2342507 Y CN 2342507Y
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connect
led
circuit
collector electrode
resistance
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CN 98238842
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郑云辉
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Abstract

The utility model relates to a charging and discharging protector for a DC operation power source, comprising a housing, a circuit board and a charging and discharging protector composed of a battery state displaying circuit and an automatic activation circuit, wherein, the battery state displaying circuit is composed of voltage comparators IC< 1 >-IC< 10 > and resistors R< 1 >-R< 10 >, and reference voltage provided by the R< 1 >-R< 10 > is separately added to the negative input ends of the IC< 1 >-IC< 10 >; the signal of the battery voltage is added to the positive input ends of the IC< 1 >-IC< 10 >. The automatic activation circuit is composed of ripple counters IC< 13 > and IC< 14 >, an NAND gate IC< 16 >, triggers IC< 15 > and IC< 12 >, phase inverters IC< 17 > and IC< 18 >, triodes V< 1 >-V< 6 > and relays J< 1 > and J< 2 >. The utility model has the advantage of improving the service life of the DC operation power source.

Description

The charging and discharging protection device of direct current operative power source
The utility model relates to the charging and discharging protection device of the battery of the direct current cabinet of using in a kind of electric power system, particularly relates to the charging and discharging protection device of the lead-acid battery of the direct current operative power source that a kind of electric substation uses.
At present; 66KV and following transformer and distribution station; 10KV distribution substation particularly; the direct current operative power source that is adopted is mostly with being every nickel-based battery and capacitance energy storage form direct current cabinet below the 20Ah; some shortcomings have been in operation; the one, adopt the protective value of thyristor circuit complete machine not tight; sometimes occur over-charging of battery and overdischarge phenomenon; the 2nd, operation maintenance is had relatively high expectations; the annual need more than the activation once, the manual operation more complicated is followed inspection and is filled and also be equiped with the superior performance microcomputer now; the direct current cabinet of discharge and protective circuit; but because the cost height is used for the above battery rack of 20Ah more.
The purpose of this utility model is at the problems referred to above, and a kind of charging and discharging protection device of direct current operative power source is provided.
The purpose of this utility model adopts following technique measures to realize, that is:
The charging and discharging protection device of direct current operative power source is made up of housing, circuit board, battery status display circuit and auto-activation circuit.
The battery automatically display circuit is by voltage comparator ic 1, IC 2, IC 3, IC 4, IC 5, IC 6, IC 7, IC 8, IC 9, IC 10, resistance R 1, R 2, R 3, R 4, R 5, R 6, R 7, R 8, R 9, R 10And LED 1, LED 2, LED 3, LED 4, LED 5, LED 6, LED 7, LED 8, LED 9, LED 10Form.R 1-R 10Respectively with IC 1-IC 10Negative input end connect and IC 1-IC 10Positive input terminal through resistance R EConnect battery E anode.Voltage comparator ic 1-IC 10Output is respectively through resistance R 12-R 21With LED 1-LED 10Connect.Voltage comparator ic 11Output and fault trigger IC 12Set end S connect.
Auto-activation road circuit comprises activation discharge timer circuit, differential circuit, charge and discharge protecting and executive circuit.The activation discharge timer circuit is by ripple counter IC 13, IC 14Form; Differential circuit is by discharge trigger IC 15, NAND gate IC 16, capacitor C 1, resistance R 22, R 23, diode D 1Form; Charge and discharge protecting and executive circuit are by fault trigger IC 12, triode V 1, V 2, V 3, V 4, V 5, V 6, inverter ic 17, inverter ic 18, the discharge relay J 1, protection relay J 2, resistance R 24, R 25, R 26, R 27, R 28, R 29, R 30, capacitor C 2, diode D 2, D 3, D 4, D 5, D 6, LED 11Form.IC 13Q 14Pin and IC 14R tEnd connects, IC 13Q 8End is through C 2, R 24With IC 12R end connect IC 13Q 4Pin is through IC 18With diode D 3Anode connects, IC 13C tEnd and capacitor C tConnect IC 13R tEnd and resistance R tConnect R sPin and resistance R 3Connect.C t, R t, R sThe other end be connected.IC 14Q 14Pin and C 1An end connect, the R pin then with trigger IC 15R pin and NAND gate IC 16Connect.IC 16Q pin and IC 17And V 5Base stage connect.IC 17The other end through R 27With V 2Base stage connect V 2Collector electrode and LED 1-LED 10Connect V 2Grounded emitter.IC 15S end through R 22With C 1Connect R 23One end and C 1, R 22Connect other end ground connection.D 1Anode and C 1, R 22Connect other end ground connection.NAND gate IC 16An input through resistance R 31Meet+the 12V power supply another input termination IC 5Output.V 5Collector electrode connect+the 12V power supply, its emitter is through R 30With V 6Base stage connect V 6Grounded emitter, V 6Collector electrode through D 4With V 5Collector electrode connect.J 1One termination V of coil 6Collector electrode, its another termination V 5Collector electrode, V 6Collector electrode through D 4Meet V 4Collector electrode.V 3Base stage meet IC 12Q end, emitter is through R 28Meet V 4Base stage, through LED 11, R 29Meet D 3Negative terminal, collector electrode meets J 2One end of coil and+the 12V power supply.V 4Collector electrode through D 6Connect+12V power supply and J 2One end of coil, J 2Another termination+12V power supply of coil.
The light-emitting diode of the electric elements of battery status display circuit and auto-activation circuit is arranged on the control panel of direct current cabinet of direct current operative power source, and all the other electric elements are arranged on the circuit board.Circuit board is arranged in the housing, and this part can be arranged on the interior suitable location of direct current cabinet during use.Also can be without housing, and directly circuit board is fixed in the direct current cabinet on the suitable location.
The operation principle of battery automatically display circuit and auto-activation circuit:
In the battery status display circuit, voltage comparator ic 1-IC 10Making battery capacity detects.Be approximated to proportional relation based on battery terminal voltage and capacity, IC 1-IC 10Be respectively applied for the battery terminal voltage value that detects corresponding battery capacity 10%-100%, resistance R 1-R 10This 10 reference voltages are provided respectively, and are added to IC 1-IC 10Negative input end, battery voltage signal is added to IC 1-IC 10Positive input terminal, like this when battery voltage signal during greater than the reference voltage of respective volume, this comparator output high level, and directly drive the LED of correspondence 1-LED 10, these 10 green LED light-emitting diodes show the battery capacity of 10%-100% respectively like this, and battery capacity is sufficient more, and the LED that lights is many more.Voltage comparator ic 11, be used to detect the floating charge overvoltage of battery, when because charger fault when making the battery float overvoltage, IC 11Input high level, and be added to fault trigger IC 12Set end S, IC 12Be set, Q exports high level, passes through V 3Drive red light emitting diodes LED 11Make the overvoltage fault and show, pass through V 3, V 4Adhesive power transfer relay J 2, output fault-signal, this fault-signal are used to cut off the protection operation of charger power supply, avoid battery overcharge.Resistance R 11The voltage reference of floating charge overvoltage is provided.
In the auto-activation circuit, ripple counter IC 13And IC 14Form timer, can produce 1 month to 1 year timing controling signal.Arrive when the time, the high level signal of its output is added to discharge trigger IC by differential circuit 15Set end S, IC 15Be set, Q exports high level, by triode V 5, V 6Adhesive discharge relay J 1, J 1Output control external circuit make to cut off the charger power supply, connect auto-activation operations such as discharge loop.Along with the carrying out of activation discharge, cell voltage reduces gradually, when cell voltage is lower than 50% battery capacity, and 50% battery capacity detection comparator IC 15The output low voltage level is through NAND gate IC 16After be added to discharge trigger IC 15Reset terminal R and timer IC 14Removing end R, activation discharge finishes like this, the timer reclocking, the discharge trigger reset, the Q output low level, the discharge relay discharges.
Therefore because the reset operation of discharge timer and discharge trigger is by battery capacity 50% signal controlling, as long as depth of discharge reaches this value, then thinking has discharge once, no matter and discharge is caused by timer, still interrupt causing by civil power.If the discharge that civil power interrupts causing does not reach this degree of depth, then timer remains valid and continues.Can get rid of like this because moment, civil power interrupts and timing circuit is impacted in short-term.
Timer also provides the flashing light of frequency 1-2 time/second, this flashing light control triode V 1Do the flash of light driving that each capacity shows LED, triode V 2Do normal bright driving.V 2Be by discharge trigger IC 15Discharge signal through inverter ic 17Control, so only when activation is discharged, V 2End LED 1-LED 10Do flicker and show that indication circuit is in the auto-activation state, and in normal condition, and the battery discharge status of civil power when interrupting, IC 15Control signal output, V 2Conducting, at this moment LED 1-LED 10Be in normal bright state.For fault LED 11, owing to be subjected to flashing light through inverter ic 18Directly control as long as it is lighted, promptly is in blink states.
Timer also provides about 8-16 of cycle the reset signal of second, is added to the reset terminal (R end) of fault trigger by differential circuit, if reset IC 12Back IC 11The overvoltage blackout, IC then 12Be reset J 2Discharge, it is normal that circuit recovers, if the overvoltage signal still exists, and then heavy again above-mentioned protection action.
The utility model can directly show battery meter; states such as floating charge overvoltage and auto-activation operation; the needed timing of automation, outage, battery discharge can be provided; discharge off recovers the normal sequence of operations that waits; can the discharge that lead-acid battery fills be monitored and protect; can prolong the useful life of battery effectively, and low cost of manufacture.
Fig. 1 is the schematic appearance of a kind of embodiment of the present utility model, and Fig. 2 is that battery shows and the auto-activation circuit theory diagrams automatically.The utility model is described in further detail below in conjunction with accompanying drawing.
The charging and discharging protection device of direct current operative power source comprises housing 1, circuit board 2, battery status display circuit and auto-activation circuit.
The battery automatically display circuit is by voltage comparator ic 1, IC 2, IC 3, IC 4, IC 5, IC 6, IC 7, IC 8, IC 9, IC 10, resistance R 1, R 2, R 3, R 4, R 5, R 6, R 7, R 8, R 9, R 10And LED 1, LED 2, LED 3, LED 4, LED 5, LED 6, LED 7, LED 8, LED 9, LED 10Form.R 1-R 10Respectively with IC 1-IC 10Negative input end connect and IC 1-IC 10Positive input terminal through resistance R EConnect battery E anode.Voltage comparator ic 1-IC 10Output is respectively through resistance R 12-R 21With LED 1-LED 10Connect.Voltage comparator ic 11Output and fault trigger IC 12Set end S connect.
Auto-activation road circuit comprises activation discharge timer circuit, differential circuit, charge and discharge protecting and executive circuit.The activation discharge timer circuit is by ripple counter IC 13, IC 14Form; Differential circuit is by discharge trigger IC 15, NAND gate IC 16, capacitor C 1, resistance R 22, R 23, diode D 1Form; Charge and discharge protecting and executive circuit are by fault trigger IC 12, triode V 1, V 2, V 3, V 4, V 5, V 6, inverter ic 17, inverter ic 18, the discharge relay J 1, protection relay J 2, resistance R 24, R 25, R 26, R 27, R 28, R 29, R 30, capacitor C 2, diode D 2, D 3, D 4, D 5, D 6, LED 11Form.IC 13Q 14Pin and IC 14R tEnd connects, IC 13Q 8End is through C 2, R 24With IC 12R end connect IC 13Q 4Pin is through IC 18With diode D 3Anode connects, IC 13C tEnd and capacitor C tConnect IC 13R tEnd and resistance R tConnect R sPin and resistance R 3Connect.C t, R t, R sThe other end be connected.IC 14Q 14Pin and C 1An end connect, the R pin then with trigger IC 15R pin and NAND gate IC 16Connect.IC 15Q pin and IC 17And V 5Base stage connect.IC 17The other end through R 27With V 2Base stage connect V 2Collector electrode and LED 1-LED 10Connect V 2Grounded emitter IC 15S end through R 22With C 1Connect R 23One end and C 1, R 22Connect other end ground connection.D 1Anode and C 1, R 22Connect other end ground connection.NAND gate IC 16An input through resistance R 31Meet+the 12V power supply another input termination IC 5Output.V 5Collector electrode connect+the 12V power supply, its emitter is through R 30With V 6Base stage connect V 6Grounded emitter, V 6Collector electrode through D 4With V 5Collector electrode connect.J 1One termination V of coil 6Collector electrode, its another termination V 5Collector electrode, V 5Collector electrode through D 4Meet V 4Collector electrode.V 3Base stage meet IC 12Q end, emitter is through R 28Meet V 4Base stage, through LED 11, R 29Meet D 3Negative terminal, collector electrode meets J 2One end of coil and+the 12V power supply.V 4Collector electrode through D 6Connect+12V power supply and J 2One end of coil, J 2Another termination+12V power supply of coil.
LED in the foregoing circuit 1-LED 11Be arranged on the control panel of direct current cabinet of direct current operative power source, all the other electronic devices and components are arranged on the circuit board 2, and circuit board 2 is arranged in the housing 1.

Claims (1)

1, the charging and discharging protection device of direct current operative power source is formed the LED in the foregoing circuit by housing (1), circuit board (2), battery status display circuit and auto-activation circuit 1-LED 11Be arranged on the control panel of direct current cabinet of direct current operative power source, all the other electric elements are arranged on the circuit board (2), and circuit board (2) is arranged in the housing (1), it is characterized in that:
A, battery automatically display circuit are by voltage comparator ic 1, IC 2, IC 3, IC 4, IC 5, IC 6, IC 7, IC 8, IC 9, IC 10, resistance R 1, R 2, R 3, R 4, R 5, R 6, R 7, R 8, R 9, R 10And LED 1, LED 2, LED 3, LED 4, LED 5, LED 6, LED 7, LED 8, LED 9, LED 10Form; R 1-R 10Respectively with IC 1-IC 10Negative input end connect and IC 1-IC 10Positive input terminal through resistance R EConnect battery E anode; Voltage comparator ic 1-IC 10Output is respectively through resistance R 12-R 21With LED 1-LED 10Connect; Voltage comparator ic 11Output and fault trigger IC 12Set end S connect;
B, auto-activation road circuit comprise activation discharge timer circuit, differential circuit, charge and discharge protecting and executive circuit; The activation discharge timer circuit is by ripple counter IC 13, IC 14Form; Differential circuit is by discharge trigger IC 15, NAND gate IC 16, capacitor C 1, resistance R 22, R 23, diode D 1Form; Charge and discharge protecting and executive circuit are by fault trigger IC 12, triode V 1, V 2, V 3, V 4, V 5, V 6, inverter ic 17, inverter ic 18, the discharge relay J 1, protection relay J 2, resistance R 24, R 25, R 26, R 27, R 28, R 29, R 30, capacitor C 2, diode D 2, D 3, D 4, D 5, D 6, LED 11Form; IC 13Q 14Pin and IC 14R tEnd connects, IC 13Q 8End is through C 2, R 24With IC 12R end connect IC 13Q 4Pin is through IC 18With diode D 3Anode connects, IC 13C tEnd and capacitor C tConnect IC 13R tEnd and resistance R tConnect R sPin and resistance R 3Connect.C t, R t, R sThe other end be connected IC 14Q 14Pin and C 1An end connect, the R pin then with trigger IC 15R pin and NAND gate IC 16Connect IC 15A pin and IC 17And V 5Base stage connect; IC 17The other end through R 27With V 2Base stage connect V 2Collector electrode and LED 1-LED 10Connect V 2Grounded emitter.IC 15S end through R 22With C 1Connect R 23One end and C 1, R 22Connect other end ground connection; D 1Anode and C 1, R 22Connect other end ground connection.NAND gate IC 16An input through resistance R 31Meet+the 12V power supply another input termination IC 5Output; V 5Collector electrode connect+the 12V power supply, its emitter is through R 30With V 6Base stage connect V 6Grounded emitter, V 6Collector electrode through D 4With V 5Collector electrode connect.J 1One termination V of coil 6Connection, its another termination V 5Collector electrode, V 6Collector electrode through D 4Meet V 4Collector electrode; V 3Base stage meet IC 12Q end, emitter is through R 28Meet V 4Base stage, through LED 11, R 29Meet D 3Negative terminal, collector electrode meets J 2One end of coil and+the 12V power supply, V 4Collector electrode through D 6Connect+12V power supply and J 2One end of coil, J 2Another termination+12V power supply of coil.
CN 98238842 1998-09-17 1998-09-17 Charging and discharging protector for DC operation power source Expired - Fee Related CN2342507Y (en)

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Application Number Priority Date Filing Date Title
CN 98238842 CN2342507Y (en) 1998-09-17 1998-09-17 Charging and discharging protector for DC operation power source

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Application Number Priority Date Filing Date Title
CN 98238842 CN2342507Y (en) 1998-09-17 1998-09-17 Charging and discharging protector for DC operation power source

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CN2342507Y true CN2342507Y (en) 1999-10-06

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101699305A (en) * 2009-09-30 2010-04-28 大连理工大学 Automatic circuit fault diagnosis and alarm device
CN101707356B (en) * 2009-11-24 2012-01-25 国电南瑞科技股份有限公司 DC protection method by using analog AC rectification in DC supply system
CN102401869A (en) * 2010-09-07 2012-04-04 Ls产电株式会社 Apparatus and method for quickly determining fault in electric power system
CN101707357B (en) * 2009-11-24 2012-04-25 国电南瑞科技股份有限公司 DC protection method by using AC electric quantity for verification in DC supply system
CN101764394B (en) * 2009-11-24 2012-06-20 国电南瑞科技股份有限公司 Direct current differential protection method of rectification unit

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101699305A (en) * 2009-09-30 2010-04-28 大连理工大学 Automatic circuit fault diagnosis and alarm device
CN101699305B (en) * 2009-09-30 2013-05-01 大连理工大学 Automatic circuit fault diagnosis and alarm device
CN101707356B (en) * 2009-11-24 2012-01-25 国电南瑞科技股份有限公司 DC protection method by using analog AC rectification in DC supply system
CN101707357B (en) * 2009-11-24 2012-04-25 国电南瑞科技股份有限公司 DC protection method by using AC electric quantity for verification in DC supply system
CN101764394B (en) * 2009-11-24 2012-06-20 国电南瑞科技股份有限公司 Direct current differential protection method of rectification unit
CN102401869A (en) * 2010-09-07 2012-04-04 Ls产电株式会社 Apparatus and method for quickly determining fault in electric power system
CN102401869B (en) * 2010-09-07 2015-03-25 Ls产电株式会社 Apparatus and method for quickly determining fault in electric power system

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C19 Lapse of patent right due to non-payment of the annual fee
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