CN102638074A - Mh-ni storage battery passivating control unit circuit - Google Patents
Mh-ni storage battery passivating control unit circuit Download PDFInfo
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- CN102638074A CN102638074A CN2012100843893A CN201210084389A CN102638074A CN 102638074 A CN102638074 A CN 102638074A CN 2012100843893 A CN2012100843893 A CN 2012100843893A CN 201210084389 A CN201210084389 A CN 201210084389A CN 102638074 A CN102638074 A CN 102638074A
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Abstract
An Mh-ni storage battery passivating control unit circuit comprises a main passivating circuit, a voltage detecting circuit and a comparing and driving circuit. The main passivating circuit comprises two magnetic latching relays and an energy dissipation resistor and controls a passivating switch of a storage battery, and the two magnetic latching relays are connected in parallel. The voltage detecting circuit detects voltage of each battery in a storage battery pack and transmits results to the comparing and driving circuit. The comparing and driving circuit compares detected voltage of each battery with passivating black-out voltage and generates driving signals to transmit to the main passivating circuit to control on and off of the main passivating circuit when detected voltage of any one of batteries is lower than the passivating black-out voltage. By means of single-battery voltage detection and passivation of the integral battery pack, size and weight of the Mh-ni storage battery passivating control unit circuit are reduced, and the Mh-ni storage battery passivating control unit circuit is high in reliability.
Description
Technical field
The present invention relates to a kind of control unit circuit that is used to control the hydrogen-nickel battery passivation operation.
Background technology
Accumulator explosion is to cause the main cause of satellite at rail disintegration and generation space junk.The solar-system operation that past was taken place shows in the rail disintegration incident generation analysis of causes, can follow the tracks of 2.25% of space object because the space junk amount that the blast of storage battery causes accounts for.At present; The explosion potential and the explosion-proof technology research that both at home and abroad storage battery are in after satellite leaves the right or normal track under the non-normal working condition are very few, and majority improves its reliability and fail safe under normal applying working condition through self designing of single battery and battery pack.Storage battery is carried out Passivation Treatment become a kind of important means that improves the storage battery safety in utilization.
For Passivation Treatment, because satellite track of living in is different, the operating state of storage battery is also different, need take the different techniques means.Future Spacecraft accumulation power supply development trend trends towards the IPV hydrogen-nickel battery.For the hydrogen-nickel battery group, passivation implements that two kinds of forms are arranged, and one of which is the monomer passivation, promptly is connected on every monomer with the resistance of certain resistance and discharges; It two is the battery pack passivation, promptly is connected on the whole battery group with a big resistance.Because the difference between the cell when adopting second method, causes the individual cell overdischarge easily, antipole occurs, need patrol and examine monomer battery voltage.Yet, because the hydrogen-nickel battery monomer voltage about 1.25V, often adopts the multiple batteries series connection for satisfying the accumulator battery voltage demand in satellite application; The battery joint number is many, if adopt monomer passivation mode, considers reliability design; With adopting a large amount of relays; This will make the passivation circuit huger, complicated, preponderance, thereby hydrogen-nickel battery group passivation employing can be to the passivation device of battery power discharge.
Present domestic GEO track and the equal no storage battery group of LEO orbiter passivation measure.Document " in the research of rail processor " (the academic annual meeting of the Chinese astronautics meeting space energy; 2002; Du Wenzhong) proposed a kind of at the rail processor; This processor be the nickel cadmium cell that uses to the GEO satellite at the rail activating apparatus, be used for when battery performance decay, carry out the discharge activation processing.But this device has following limitation in the use: the battery that 1, is only applicable to the GEO track is in the rail activation processing, and purposes is that energy dissipating is handled after improving battery performance rather than task, can not be used for the task passivation in latter stage; 2, be applicable to Cadmium Nickel Battery, be not suitable for the hydrogen-nickel battery group; 3, circuit adopts monomer activation method, equipment bulky complex; 4, adopt single relay mode, irredundant design, reliability is relatively poor.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiency of prior art, a kind of reliability height, little, the lightweight hydrogen-nickel battery Passivation Treatment of volume control unit circuit are provided.
Technical solution of the present invention is: a kind of hydrogen-nickel battery Passivation Treatment control unit circuit, comprise passivation main circuit, voltage detecting circuit, comparison and drive circuit, wherein,
The passivation main circuit: the passivation switch to storage battery is controlled, and comprises two magnetic latching relays and energy dissipating resistance of series connection, two groups of contact series connection of two magnetic latching relays, and the passivation main circuit is serially connected between the positive pole and negative pole of batteries; When needs carry out the storage battery Passivation Treatment; Feed electric current or send and open remote control command to first group of line bag of the homonymy of two magnetic latching relays simultaneously; Make two magnetic latching relays be in opening state simultaneously, batteries is discharged through energy dissipating resistance; When needs stop the storage battery Passivation Treatment; Feed electric current or send to second group of line bag of the homonymy of two magnetic latching relays simultaneously and close remote control command; Make two magnetic latching relays be in off state simultaneously, disconnection energy dissipating resistance is connected with batteries;
Voltage detecting circuit: comprise with batteries in the identical sense channel of monomer number; Each sense channel comprises an operational amplifier and four build-out resistors; The positive pole of single battery is connected to the input in the same way of operational amplifier and an end of second build-out resistor, the other end ground connection of second build-out resistor simultaneously after first build-out resistor; The negative pole of single battery is connected to the reverse input end of operational amplifier and an end of the 4th build-out resistor simultaneously after the 3rd build-out resistor; The output of another termination operational amplifier of the 4th build-out resistor, comparison and drive circuit are delivered in the output of operational amplifier;
Comparison and drive circuit: comprise with sense channel and compare passage and a control triode and an electric capacity one to one; Each compares passage and constitutes by an operational amplifier; Each input in the same way that compares the operational amplifier of passage all is connected to preset cut-ff voltage; The reverse input end that respectively compares the operational amplifier of passage connects the output of the sense channel operational amplifier corresponding with it respectively; Each relatively the operational amplifier of passage output through logic OR relatively after be connected to the base stage of control triode through electric capacity; The grounded emitter of control triode, the collector electrode of control triode is connected to second group of line bag of the homonymy of two magnetic latching relays in the passivation main circuit.
Also comprise the protective circuit between second group of line bag of the homonymy of two magnetic latching relays in collector electrode and the passivation main circuit that is connected on the control triode; Described protective circuit comprises the 3rd magnetic latching relay and a driving triode; One group of line bag of the 3rd magnetic latching relay connects the collector electrode of control triode or forbids remote control command, and another group line bag of the 3rd magnetic latching relay connects the permission remote control command; When the current collection of control triode low level or receive when forbidding remote control command very; It is that voltage detecting circuit provides cut-ff voltage that the switch of the 3rd magnetic latching relay is in first contact position; When the current collection of control triode high level or receive when allowing remote control command very; The switch of the 3rd magnetic latching relay is in second contact position; Make the collector electrode of control triode perhaps allow remote control command to be connected to the base stage that drives triode, drive the grounded emitter of triode, the collector electrode that drives triode is connected to second group of line bag of the homonymy of two magnetic latching relays in the passivation main circuit.
The present invention's advantage compared with prior art is: this circuit that can be used for the hydrogen-nickel battery group in the rail Passivation Treatment of the present invention, realized task hydrogen-nickel battery in latter stage group passivation energy dissipating processing; The passivation switch has adopted the mode of double relay series connection, prevents when the rail operate as normal, to take place misoperation; Be provided with the passivation enable switch, under the prerequisite that passivation enables, can connect the passivation switch through remote control command; The employing monomer voltage detects, and puts in order the method for group Passivation Treatment, has reduced the volume and the weight of circuit.
Description of drawings
Fig. 1 is the schematic diagram of hydrogen-nickel battery Passivation Treatment control unit circuit of the present invention.
Embodiment
The major function of hydrogen-nickel battery Passivation Treatment control unit circuit is that the hydrogen-nickel battery group is put in order the group passivation.As shown in Figure 1, the schematic diagram for hydrogen-nickel battery Passivation Treatment control unit circuit of the present invention mainly comprises passivation main circuit, voltage detecting circuit, comparison and drive circuit.The passivation main circuit is used for the passivation of storage battery is controlled, and is designed to two independent switch series connection and uses, and the fault that can avoid storage battery passivation switch to break off causes batteries often to discharge, to guarantee reliability.The passivation switch is switched on or switched off and forbids that the setting of passive state can carry out through ground remote control instruction in the passivation main circuit.The passivation instruction is sent by the direct remote control command in ground.Forbidding under the passive state that the passivation instruction can't be carried out the storage battery deactivation function.But when batteries is carried out passivation, forbid that passivation instruction can interrupt deactivation function.Batteries is in and forbids passive state under the normal condition.When batteries need be carried out passivation, need to send out earlier and forbid that passivation lifts a ban instruction and storage battery is in forbid passivation to be lifted a ban under the state, connect storage battery passivation switch again.Voltage detecting circuit is sampled to accumulator battery voltage; Through relatively and in the drive circuit comparing with the passivation cut-ff voltage; When accumulator battery voltage is lower than the passivation cut-ff voltage, the passivation switch automatic disconnection in comparison and the driving circuit drives passivation main circuit, passivation is accomplished.
In addition, for guaranteeing power supply safety, prevent that the normal operation period batteries is passivated because of misoperation, control unit circuit of the present invention also is provided with protective circuit.When this protective circuit is set to illegal state, open instruction even send passivation, also can't connect the passivation switch.Have only protective circuit to be set to enable state, can realize the normal break-make control of passivation circuit.
As shown in Figure 1, in the passivation main circuit, two switches of J4 and J5 all adopt magnetic latching relay, two switch series connection.With magnetic latching relay shown in the J4 is example, and 1 pin and 2 pin are one group of line bags, and 9 pin and 10 pin then are other one group of line bags.3,4,5 pin (leaning on last one group) and 6,7,8 pin (leaning on next group) are two groups of different contact switchs.For preventing the contact misoperation, adopt two groups of contact series connection.Wherein 3 pin and 6 pin are common, during the magnetic latching relay operate as normal, 3 pin contacts can only with 4 pin contacts and 5 pin contacts in one link to each other.Might as well establish relay J 4 and receive remote control command, then have instruction power to act on line bag 1 pin and 2 pin (28V, 80ms potential pulse), supposing has pulse current to be got into when 2 pin flow out by 1 pin, and 3 pin contacts link to each other with 4 pin contacts; Then get into when 10 pin flow out by 9 pin as pulse current; 3 pin contacts will link to each other with 5 pin contacts, if be kept to zero by 9 pin to the electric current of 10 pin this moment, but as long as no current passes through between 1 pin and 2 pin; 3 contacts of relay contact with 5 contacts all the time, the characteristics of Here it is magnetic latching relay.6,7,8 pin contact working conditions also are like this.When the passivation operate as normal, send passivation and open remote control command, 6 pin link to each other with 8 pin contacts.When the voltage of testing circuit is compared with cut-ff voltage hour, relatively, there is electric current to pass through between 1 pin and 2 pin with drive circuit voltage pulse output (perhaps send passivation and close instruction), 6 pin of magnetic latching relay link to each other with 7 pin, the disconnection of passivation main circuit, passivation completion.D10～D17 is the relay line bag back electromotive force diode that disappears, and R32, R33 are passivation energy dissipating resistance, and BAT1, BAT2, BAT3 are 3 joint hydrogen-nickel battery monomers of series connection.This sentences 3 joints and is example, increases the quantity of single battery certainly according to actual conditions.
Chip used in the voltage detecting circuit is LM158, and packing forms is DIP-8, integrated 2 road operational amplification circuits of monolithic (hereinafter to be referred as " amplifier ").4 pin and 8 pin are respectively the ground end and the anode of power supply, and 3 pin are positive input terminal, and 2 pin are negative input end, and 1 pin is an output.During desirable integrated transporting discharging operate as normal, 2 pin and 3 pin voltages equate, are referred to as " empty short "; The electric current that pours into chip internal is zero, is referred to as " empty disconnected ".With U5A is example; If four resistance R 5, R6, R7, R8 resistances equate; According to " empty disconnected " then 3 pin voltages be V3=((BAT3+)-(BAT-)) * R7/ (R7+R8)+(BAT-)=((BAT3+)+(BAT-))/2; According to " empty short " 2 pin voltages also be V2=((BAT3+)+(BAT-))/2, and again according to " empty breaking ", 1 pin voltage is V1=(V2-(BAT-))/R6 * (R6+R5)=(BAT3+)-(BAT-) and then has realized the function of voltage detecting.In like manner; For U5B; 3 pin voltage V3=((BAT2+)-(BAT3+)) * R12/ (R11+R12)+(BAT3+)=((BAT2+)+(BAT3+))/2; 2 pin voltages also are that V2=((BAT2+)+(BAT3+))/2,1 pin voltage is V1=(V2-(BAT3+))/R9 * (R9+R10)=(BAT2+)-(BAT3+); For U6A; 3 pin voltage V3=((BAT1+)-(BAT2+)) * R16/ (R16+R15)+(BAT2+)=((BAT1+)+(BAT2+))/2; 2 pin voltages also are that V2=((BAT1+)+(BAT2+))/2,1 pin voltage is V1=(V2-(BAT2+))/R13 * (R13+R14)=(BAT1+)-(BAT2+).The resistance that connects of rear end and direct-to-ground capacitance R19, C1 in addition, R18, C2, R17, C3 have realized the effect of LPF, when using this signal for subsequent conditioning circuit, have improved anti-interference.
Adopt the LM193 comparator in comparison and the drive circuit, packing forms is DIP-8, integrated No. 2 comparison circuits of monolithic, and 4 pin and 8 pin are respectively the ground end and the anode of power supply, positive input terminal 3 pin, negative input end 2 pin, output 1 pin.Adopt the passivation of whole group, the mode that monomer detects, three road comparators are corresponding 3 road cells respectively, and sampled voltage is imported as comparator.Three road comparator output terminals are parallel connection directly, phase or back output, and promptly arbitrary monomer voltage is lower than the cut-ff voltage of setting, then breaks off the passivation switch, and passivation finishes.If 3 pin voltage ratios, 2 pin voltages are big, then comparator is exported high-impedance state, and then can realize high level output through pull-up current; Simultaneously, if 2 pin voltage ratios, 3 pin voltages are high, 1 pin output class is similar to 4 pin and links to each other, thereby keeps being output as low level.If when forbidding that the instruction connection is lifted a ban in passivation, 3 pin connect cut-ff voltage, can produce cut-ff voltage through resistance R 3 and resistance R 4 dividing potential drop forms, 2 pin connect single battery and detect voltage.When starting working, 2 pin voltages are higher than cut-ff voltage, and 1 pin of LM193 is output as low level; The base stage of the triode Q3 that is attached thereto does not have drive current, so triode Q3 is in cut-off state, causes triode Q4 to be in cut-off state yet; Magnetic latching relay J3 does not work, and passivation continues to carry out.After carrying out to a certain degree, single battery voltage is lower than cut-ff voltage, and causing 1 jiao of LM193 output is high level; Give capacitor C 4, C5, C6 charging, and then capacitor C 4 raises with resistance R 24 connecting place current potentials, then base stage moment of triode Q3 has current i b to pass through; The emitter current of Q3 is β ib doubly through amplifying β (β is the amplifying parameters of triode, is generally 50, even hundreds of); That is the drive current of the base stage of Q4 is enough big, impels triode Q4 to be operated in the amplification saturation region, and the emitter and collector of triode Q4 is straight-through; There is electric current at the two ends of magnetic latching relay J3 line bag through impelling relay J 3 work, and passivation is finished.Resistance R 20, R21, R22 are pull-up resistor, and diode D7～D9 is used for isolating, and capacitor C 5, C6 and resistance R 25 are used to drive triode Q3, and resistance R 23, R24, R26 are earth resistance, and C4 is a filter capacitor.
Protective circuit prevents Passivation Treatment generation misoperation.When sending hydrogen nickel passivation permission instruction, relay J 3 contacts are in the position shown in the diagram.12V voltage is that comparator provides the cut-ff voltage benchmark through resistance R 3, R4 dividing potential drop, and triode Q5, Q6 base drive are unsettled, and relay J 4, J5 can normally accept remote control command and carry out the passivation task this moment; When sending hydrogen nickel passivation inhibit command, perhaps single battery voltage is less than when the voltage, 9,10 of relay J 3; Get an electric shock and 3 to be connected with 5; 6 are connected with 8, and this moment, the 12V power supply acted on the base stage of triode Q5, drove triode Q5, Q6 conducting; Make the line bag of relay J 4, J5 cut off the power supply, break off the passivation switch.D1～D4 is the relay J 3 back electromotive force diode that disappears, and R1, R2 are relay J 3 line bag current-limiting resistances, and R27, R28, R29, R31, C7, C8 are triode Q5 base drive peripheral circuit.
The content of not doing to describe in detail in the specification of the present invention belongs to those skilled in the art's known technology.
Claims (2)
1. hydrogen-nickel battery Passivation Treatment control unit circuit is characterized in that comprising: passivation main circuit, voltage detecting circuit, comparison and drive circuit, wherein,
The passivation main circuit: the passivation switch to storage battery is controlled, and comprises two magnetic latching relays and energy dissipating resistance of series connection, two groups of contact series connection of two magnetic latching relays, and the passivation main circuit is serially connected between the positive pole and negative pole of batteries; When needs carry out the storage battery Passivation Treatment; Feed electric current or send and open remote control command to first group of line bag of the homonymy of two magnetic latching relays simultaneously; Make two magnetic latching relays be in opening state simultaneously, batteries is discharged through energy dissipating resistance; When needs stop the storage battery Passivation Treatment; Feed electric current or send to second group of line bag of the homonymy of two magnetic latching relays simultaneously and close remote control command; Make two magnetic latching relays be in off state simultaneously, disconnection energy dissipating resistance is connected with batteries;
Voltage detecting circuit: comprise with batteries in the identical sense channel of monomer number; Each sense channel comprises an operational amplifier and four build-out resistors; The positive pole of single battery is connected to the input in the same way of operational amplifier and an end of second build-out resistor, the other end ground connection of second build-out resistor simultaneously after first build-out resistor; The negative pole of single battery is connected to the reverse input end of operational amplifier and an end of the 4th build-out resistor simultaneously after the 3rd build-out resistor; The output of another termination operational amplifier of the 4th build-out resistor, comparison and drive circuit are delivered in the output of operational amplifier;
Comparison and drive circuit: comprise with sense channel and compare passage and a control triode and an electric capacity one to one; Each compares passage and constitutes by an operational amplifier; Each input in the same way that compares the operational amplifier of passage all is connected to preset cut-ff voltage; The reverse input end that respectively compares the operational amplifier of passage connects the output of the sense channel operational amplifier corresponding with it respectively; Each relatively the operational amplifier of passage output through logic OR relatively after be connected to the base stage of control triode through electric capacity; The grounded emitter of control triode, the collector electrode of control triode is connected to second group of line bag of the homonymy of two magnetic latching relays in the passivation main circuit.
2. a kind of hydrogen-nickel battery Passivation Treatment control unit circuit according to claim 1; It is characterized in that: also comprise the protective circuit between second group of line bag of the homonymy of two magnetic latching relays in collector electrode and the passivation main circuit that is connected on the control triode; Described protective circuit comprises the 3rd magnetic latching relay and a driving triode; One group of line bag of the 3rd magnetic latching relay connects the collector electrode of control triode or forbids remote control command, and another group line bag of the 3rd magnetic latching relay connects the permission remote control command; When the current collection of control triode low level or receive when forbidding remote control command very; It is that voltage detecting circuit provides cut-ff voltage that the switch of the 3rd magnetic latching relay is in first contact position; When the current collection of control triode high level or receive when allowing remote control command very; The switch of the 3rd magnetic latching relay is in second contact position; Make the collector electrode of control triode perhaps allow remote control command to be connected to the base stage that drives triode, drive the grounded emitter of triode, the collector electrode that drives triode is connected to second group of line bag of the homonymy of two magnetic latching relays in the passivation main circuit.
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| CN201210084389.3A CN102638074B (en) | 2012-03-26 | 2012-03-26 | Mh-ni storage battery passivating control unit circuit |
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| CN201210084389.3A CN102638074B (en) | 2012-03-26 | 2012-03-26 | Mh-ni storage battery passivating control unit circuit |
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| CN102638074A true CN102638074A (en) | 2012-08-15 |
| CN102638074B CN102638074B (en) | 2014-04-02 |
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Cited By (1)
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| CN106787067A (en) * | 2017-02-24 | 2017-05-31 | 北京空间飞行器总体设计部 | A kind of battery charges and adjusts protection circuit |
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| KR20020062860A (en) * | 2001-01-25 | 2002-07-31 | 다이얼로그 세미컨덕터 게엠베하 | Charge/discharge protection circuit for a rechargeable battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787067A (en) * | 2017-02-24 | 2017-05-31 | 北京空间飞行器总体设计部 | A kind of battery charges and adjusts protection circuit |
| CN106787067B (en) * | 2017-02-24 | 2019-06-18 | 北京空间飞行器总体设计部 | A kind of battery charging adjusting protection circuit |
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