CN103944149A - Storage battery feed protection circuit - Google Patents
Storage battery feed protection circuit Download PDFInfo
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- CN103944149A CN103944149A CN201410153416.7A CN201410153416A CN103944149A CN 103944149 A CN103944149 A CN 103944149A CN 201410153416 A CN201410153416 A CN 201410153416A CN 103944149 A CN103944149 A CN 103944149A
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Abstract
The invention discloses a storage battery feed protection circuit. The circuit comprises a storage battery under-voltage protection circuit, a storage battery voltage detecting controller, a feed contactor coil, a switch and a cable assembly, wherein the feed contactor coil is controlled by the output voltage of the voltage detecting controller, the switch is controlled by the feed contactor coil, and the cable assembly is connected between the electrical components and a loop. When the voltage of a storage battery is reduced to the feed protection voltage setting value, the output voltage of the voltage detecting controller is lower than the working voltage of the feed contactor coil, and the switch controlled by a feed contactor is used for cutting off all loads of the storage battery. According to the storage battery feed protection circuit, the voltage of the storage battery is detected and monitored through a voltage detecting control circuit, the feed protection voltage setting value is set, the switch controlled by the feed contactor coil automatically cuts off all the loads of the storage battery, secondary protection is carried out on the storage battery after under-voltage protection, the maintaining workload of the storage battery is reduced, the service life of the storage battery is prolonged, and the pushing cost of products is reduced.
Description
Technical field
The present invention relates to accumulator protecting field, in particular, relate to a kind of accumulator feeding protective circuit.
Background technology
At present, city rail vehicle 110V is provided with storage battery under-voltage protecting circuit in loop, concrete, it is provided with under-voltage protection setting value, this under-voltage protection setting value is a little more than the final voltage value of storage battery, in the time that in battery discharging process, voltage is down to under-voltage protection setting value, contactor by under-voltage relay control disconnects main cell load, but still there is part permanent load can continue electricity consumption, vehicle storage battery during parking still can continue electric discharge with little electric current, storage battery sustain discharge state always, if electric discharge excessively certainly will cause accumulator feeding, in feed situation, can make the voltage of storage battery decline rapidly if continue again electric discharge, and the serious battery tension that even can make of feed is reduced to 0V, storage battery is caused damage, and battery need to be uncarted and carry out charge and discharge maintenance, also likely cause the irrecoverable generation of product to scrap, for example: lead-acid battery is down to when voltage is 0V will cause product rejection.
Therefore; a kind of accumulator feeding protective circuit is provided; with solve current city rail vehicle deposit with maintenance process in 110V loop storage battery after under-voltage protection, still continue electric discharge; increase a large amount of battery service workloads; shorten the useful life of storage battery; and having increased the acquisition cost of product, is those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
In view of this; the invention provides a kind of accumulator feeding protective circuit; with overcome in prior art due to city rail vehicle at present deposit with maintenance process in 110V loop storage battery after under-voltage protection, still continue electric discharge; increase a large amount of battery service workloads; shorten the useful life of storage battery, and increased the problem of the acquisition cost of product.
For achieving the above object, the invention provides following technical scheme:
A kind of accumulator feeding protective circuit; it is characterized in that; comprise: storage battery under-voltage protecting circuit; battery tension detects controller; by the feed contactor coil of described voltage detecting controller output voltage control and the control switch of feed contactor, and connect the cable assembly between above-mentioned electric component and loop.
Wherein, control switch or contactor and the control coil of the load of rear continuation electricity consumption that described storage battery under-voltage protecting circuit comprises storage battery, fuse, storage battery is under-voltage, cable assembly, under-voltage relay; and storage battery can be cut after under-voltage load; in the time that the voltage of described storage battery is down to under-voltage protection voltage setting value; disconnect control switch or the contactor of described under-voltage relay, excise the load that described storage battery can be cut after under-voltage.
Wherein, described voltage detecting controller detects the voltage at described storage battery two ends; and feed protection voltage setting value is set; in the time that the voltage of described storage battery is down to described feed protection voltage setting value; voltage detecting controller output voltage is lower than described feed contactor coil operating voltage; disconnect the whole loads of described storage battery by the switch of described feed contactor coil control, wherein
The switch of described feed contactor coil control is arranged on by described cable assembly between the cathode output end and described fuse of described storage battery;
The first output of described voltage detecting controller is connected by described cable assembly with the control coil of described feed contactor, and the control coil of feed contactor obtains electric, power failure state described in the magnitude of voltage control of described voltage detecting controller output;
The input of described voltage detecting controller is connected with the both positive and negative polarity output of described storage battery by described cable assembly, detects the magnitude of voltage of described storage battery.
Preferably, also comprise: be connected with the second output of described voltage detecting controller, carry out the electric feed signal output device of electric feed signal output.
Wherein, described electric feed signal output device comprises electric feed signal display and electric feed signal printer.
Wherein, the control switch of the control switch of described under-voltage relay and described feed contactor is open type switch or closed type switch.
Known via above-mentioned technical scheme, compared with prior art, the invention discloses a kind of accumulator feeding protective circuit, this circuit comprises storage battery under-voltage protecting circuit, battery tension detects controller, by the feed contactor coil of described voltage detecting controller output voltage control, by the switch of described feed contactor coil control, and connect the cable assembly between above-mentioned electric component and loop, wherein, described voltage detecting controller detects the voltage at described storage battery two ends, and feed protection voltage setting value is set, in the time that the voltage of described storage battery is down to described feed protection voltage setting value, voltage detecting controller output voltage is lower than described feed contactor coil operating voltage, disconnect the whole loads of described storage battery by the control switch of described feed contactor.The present invention is detected monitoring and feed protection voltage setting value is set the voltage of storage battery by voltage detecting and controling circuit; automatically excise the whole loads of storage battery by the switch of feed contactor coil control; storage battery is carried out to the second protection after under-voltage protection; reduce battery service workload, extend the useful life of storage battery and the acquisition cost of reduction product.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
Fig. 1 is the disclosed a kind of feed secondary battery protection circuit electrical structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the disclosed storage battery under-voltage protecting circuit of embodiment of the present invention electrical structure schematic diagram;
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The invention discloses a kind of accumulator feeding protective circuit, this circuit comprises storage battery under-voltage protecting circuit, battery tension detects controller, by the feed contactor coil of described voltage detecting controller output voltage control, by the switch of described feed contactor coil control, and connect the cable assembly between above-mentioned electric component and loop, wherein, described voltage detecting controller detects the voltage at described storage battery two ends, and feed protection voltage setting value is set, in the time that the voltage of described storage battery is down to described feed protection voltage setting value, voltage detecting controller output voltage is lower than described feed contactor coil operating voltage, disconnect the whole loads of described storage battery by the control switch of described feed contactor.The present invention is detected monitoring and feed protection voltage setting value is set the voltage of storage battery by voltage detecting and controling circuit; automatically excise the whole loads of storage battery by the switch of feed contactor coil control; storage battery is carried out to the second protection after under-voltage protection; reduce battery service workload, extend the useful life of storage battery and the acquisition cost of reduction product.
Referring to accompanying drawing 1, is the disclosed a kind of accumulator feeding protective circuit structural representation of the embodiment of the present invention.The embodiment of the invention discloses a kind of accumulator feeding protective circuit, this circuit concrete structure as shown in Figure 1, concrete structure comprises: storage battery under-voltage protecting circuit 101, battery tension detects controller M, by the feed contactor coil K of described voltage detecting controller output voltage control, the switch of described feed contactor coil control, and connect the cable assembly between above-mentioned electric component and loop, wherein, described voltage detecting controller detects the voltage U 1 at described storage battery two ends, and feed protection voltage setting value is set, in the time that the voltage U 1 of described storage battery is down to described feed protection voltage setting value, voltage detecting controller output voltage U 2 is lower than described feed contactor coil operating voltage U3, disconnect the whole loads of described storage battery by the control switch of described feed contactor.The control switch of described feed contactor is arranged on by described cable assembly between the cathode output end and described fuse Q of described storage battery GB; The first output of described voltage detecting controller M is connected by described cable assembly with the control coil K of described feed contactor, the magnitude of voltage U2 of described voltage detecting controller output control described feed contactor control coil K electric, power failure state; The input of described voltage detecting controller M is connected with the both positive and negative polarity output of described storage battery GB by described cable assembly respectively, detects the magnitude of voltage of described storage battery GB.
The present invention is detected monitoring and feed protection voltage setting value is set the voltage of storage battery by voltage detecting controller; in the time that the voltage of described storage battery is down to described feed protection voltage setting value; automatically the whole loads of excision storage battery; storage battery is carried out to the second protection after under-voltage protection; reduce battery service workload, extend the useful life of storage battery and reduced the acquisition cost of product.
Concrete, refer to accompanying drawing 2, be the electrical structure schematic diagram of the disclosed storage battery under-voltage protecting circuit of the embodiment of the present invention.Described storage battery under-voltage protecting circuit 101 as shown in Figure 2; comprise storage battery GB, fuse Q, control switch or contactor and the control coil K1 of the load R of storage battery is under-voltage rear continuation electricity consumption, cable assembly, under-voltage relay; and storage battery can be cut after under-voltage load R1; in the time that the voltage of described storage battery is down to under-voltage protection voltage setting value; disconnect control switch or the contactor of described under-voltage relay, excise the load R1 that described storage battery can be cut after under-voltage.
As can be seen from Figure 2, secondary battery protection circuit is to be provided with under-voltage protection setting value, and this under-voltage protection setting value is a little more than the final voltage value of storage battery.When voltage in battery discharging process is down to under-voltage protection setting value; switch or contactor by under-voltage relay control will can disconnect by cut load R1 after under-voltage main storage battery; but still the load R of the under-voltage rear continuation electricity consumption of some storage battery not yet disconnects; storage battery can maintain and continue electric discharge after under-voltage protection; along with the dump energy of the prolongation storage battery of discharge time progressively drains, the voltage of storage battery is down to final voltage.Therefore; the present invention is on the basis of storage battery under-voltage protecting circuit; voltage detecting and second protection control circuit are increased; control the load R of the under-voltage rear continuation electricity consumption of excision storage battery; stop storage battery and continue continuity electric discharge; after avoiding storage battery because of depleted of energy, voltage fast-descending is even 0; thereby cause storage battery must uncart ground and carry out charge and discharge maintenance; and storage battery is caused damage; shortened the useful life of storage battery, especially lead acid accumulator voltage drop most 0 can cause the irrecoverable generation of whole Battery pack to scrap.
Refer to accompanying drawing 1, concrete feed protection principle is:
1) when the output voltage of storage battery is higher than low-voltage value, belong to normal operating conditions, the control voltage U 2 of voltage detecting controller output is greater than the minimal maintenance operating voltage of the control coil K of feed contactor, the control switch of feed contactor is in closure state, and now under-voltage signal output voltage is 0.
2) when the output voltage of storage battery is down to under-voltage setting value and following but while being greater than feed setting value, under-voltage relay K1 action, excise the load R1 that main storage battery can be cut after under-voltage, but still there is the load R of the under-voltage rear continuation electricity consumption of part storage battery to continue electricity consumption, the control voltage U 2 of voltage detecting controller M output is greater than the minimal maintenance operating voltage of the control coil K of feed contactor, the control switch of feed contactor is in closure state, now there is under-voltage signal voltage output, represent that storage battery is in under-voltage condition.
3) because the load R of the under-voltage rear continuation electricity consumption of part storage battery is still continuing electricity consumption, the output voltage of storage battery continues to decline, in the time that the output voltage of storage battery is down to feed voltage setting value, the control voltage U 2 of voltage detecting controller M output is less than the minimal maintenance operating voltage of the control coil of feed contactor, the control switch of feed contactor disconnects automatically, excise all cell loads, also excised the load R of the under-voltage rear continuation electricity consumption of storage battery, simultaneously, voltage detecting controller M carries out internal circuit blockade, excise the voltage recovery value of battery after all cell loads and do not reach the conduction value of voltage detecting controller, storage battery remains open state.
4) after only charging a battery, battery tension is just devoted oneself to work again higher than the conduction value of voltage detecting controller, and accumulator feeding has been played to protective effect.
The present invention has set up voltage detector and second protection control circuit in secondary battery protection circuit, this voltage detector has been set feed protection voltage setting value, in the time that storage battery continues electric discharge and causes its voltage and reach feed protection voltage setting value after under-voltage protection, voltage detecting controller M output voltage U 2 is less than the minimal maintenance voltage of feed contactor to the control coil K of feed contactor, the control switch of described feed contactor disconnects, all loads of excision storage battery, resistance R as shown in Figure 1 and resistance R 1, thereby the voltage that has ensured storage battery no longer declines, storage battery is also without carrying out ground maintenance, more be unlikely to scrap, effectively protect accumulator product.
The invention discloses a kind of accumulator feeding protective circuit, this circuit comprises storage battery under-voltage protecting circuit, battery tension detects controller, by the feed contactor coil of described voltage detecting controller output voltage control, by the switch of described feed contactor coil control, and connect the cable assembly between above-mentioned electric component and loop, wherein, described voltage detecting controller detects the voltage at described storage battery two ends, and feed protection voltage setting value is set, in the time that the voltage of described storage battery is down to described feed protection voltage setting value, voltage detecting controller output voltage is lower than described feed contactor coil operating voltage, disconnect the whole loads of described storage battery by the control switch of described feed contactor.The present invention is detected monitoring and feed protection voltage setting value is set the voltage of storage battery by voltage detecting and controling circuit; automatically excise the whole loads of storage battery by the switch of feed contactor coil control; storage battery is carried out to the second protection after under-voltage protection; reduce battery service workload, extend the useful life of storage battery and the acquisition cost of reduction product.
Preferably; above-mentioned accumulator feeding protective circuit also comprises: be connected with the second output of described voltage detecting controller; carry out the electric feed signal output device of electric feed signal output, described electric feed signal output device comprises electric feed signal display and electric feed signal printer.
The present embodiment can, by accumulator feeding signal and the output of under-voltage signal, can be monitored and detect storage battery in real time.
Preferably, the control switch of the control switch of under-voltage relay described above and described feed contactor is open type switch or closed type switch.
The control switch that the present invention adopts can adopt open type switch, also can adopt closed type switch, can reach the effect that anticipation is controlled.
In sum: the invention discloses a kind of accumulator feeding protective circuit, this circuit comprises storage battery under-voltage protecting circuit, battery tension detects controller, by the feed contactor coil of described voltage detecting controller output voltage control, by the switch of described feed contactor coil control, and connect the cable assembly between above-mentioned electric component and loop, wherein, described voltage detecting controller detects the voltage at described storage battery two ends, and feed protection voltage setting value is set, in the time that the voltage of described storage battery is down to described feed protection voltage setting value, voltage detecting controller output voltage is lower than described feed contactor coil operating voltage, disconnect the whole loads of described storage battery by the control switch of described feed contactor.The present invention is detected monitoring and feed protection voltage setting value is set the voltage of storage battery by voltage detecting and controling circuit; automatically excise the whole loads of storage battery by the switch of feed contactor coil control; storage battery is carried out to the second protection after under-voltage protection; reduce battery service workload; extend the useful life of storage battery and the acquisition cost of reduction product, this invention also discloses a kind of accumulator feeding protective device.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. an accumulator feeding protective circuit; it is characterized in that; comprise: storage battery under-voltage protecting circuit; battery tension detects controller; by the feed contactor coil of described voltage detecting controller output voltage control and the control switch of feed contactor, and connect the cable assembly between above-mentioned electric component and loop.
2. circuit according to claim 1; it is characterized in that; control switch or contactor and the control coil of the load of rear continuation electricity consumption that described storage battery under-voltage protecting circuit comprises storage battery, fuse, storage battery is under-voltage, cable assembly, under-voltage relay; and storage battery can be cut after under-voltage load; in the time that the voltage of described storage battery is down to under-voltage protection voltage setting value; disconnect control switch or the contactor of described under-voltage relay, excise the load that described storage battery can be cut after under-voltage.
3. circuit according to claim 1; it is characterized in that; described voltage detecting controller detects the voltage at described storage battery two ends; and feed protection voltage setting value is set; in the time that the voltage of described storage battery is down to described feed protection voltage setting value, voltage detecting controller output voltage, lower than described feed contactor coil operating voltage, disconnects the whole loads of described storage battery by the switch of described feed contactor coil control; wherein
The switch of described feed contactor coil control is arranged on by described cable assembly between the cathode output end and described fuse of described storage battery;
The first output of described voltage detecting controller is connected by described cable assembly with the control coil of described feed contactor, and the control coil of feed contactor obtains electric, power failure state described in the magnitude of voltage control of described voltage detecting controller output;
The input of described voltage detecting controller is connected with the both positive and negative polarity output of described storage battery by described cable assembly, detects the magnitude of voltage of described storage battery.
4. circuit according to claim 3, is characterized in that, also comprises: be connected with the second output of described voltage detecting controller, carry out the electric feed signal output device of electric feed signal output.
5. circuit according to claim 4, is characterized in that, described electric feed signal output device comprises electric feed signal display and electric feed signal printer.
6. according to the circuit described in claim 2 or 3, it is characterized in that, the control switch of the control switch of described under-voltage relay and described feed contactor is open type switch or closed type switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410153416.7A CN103944149B (en) | 2014-04-16 | 2014-04-16 | A kind of accumulator feeding protection circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410153416.7A CN103944149B (en) | 2014-04-16 | 2014-04-16 | A kind of accumulator feeding protection circuit |
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| CN103944149A true CN103944149A (en) | 2014-07-23 |
| CN103944149B CN103944149B (en) | 2016-09-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106183825A (en) * | 2016-07-27 | 2016-12-07 | 中车大连机车车辆有限公司 | Accumulator preventing electric loss method |
| CN106571619A (en) * | 2016-10-27 | 2017-04-19 | 中车株洲电力机车有限公司 | Storage battery undervoltage protection control circuit and control method thereof |
| CN110289648A (en) * | 2018-03-19 | 2019-09-27 | 株洲中车时代电气股份有限公司 | A kind of method and system controlling unmanned rail traffic vehicles battery |
| CN112666470A (en) * | 2020-12-15 | 2021-04-16 | 武汉极目智能技术有限公司 | Method and device for judging whether power supply voltage of automobile electronic circuit system is undervoltage |
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| CN1230303A (en) * | 1996-09-14 | 1999-09-29 | 布劳恩股份有限公司 | Method and arrangement for disconnecting consumers |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106183825A (en) * | 2016-07-27 | 2016-12-07 | 中车大连机车车辆有限公司 | Accumulator preventing electric loss method |
| CN106571619A (en) * | 2016-10-27 | 2017-04-19 | 中车株洲电力机车有限公司 | Storage battery undervoltage protection control circuit and control method thereof |
| CN106571619B (en) * | 2016-10-27 | 2018-12-14 | 中车株洲电力机车有限公司 | A kind of storage battery under-voltage protection control circuit and its control method |
| CN110289648A (en) * | 2018-03-19 | 2019-09-27 | 株洲中车时代电气股份有限公司 | A kind of method and system controlling unmanned rail traffic vehicles battery |
| CN112666470A (en) * | 2020-12-15 | 2021-04-16 | 武汉极目智能技术有限公司 | Method and device for judging whether power supply voltage of automobile electronic circuit system is undervoltage |
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| Publication number | Publication date |
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| CN103944149B (en) | 2016-09-14 |
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