CN2372816Y - Accumulator protector - Google Patents
Accumulator protector Download PDFInfo
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- CN2372816Y CN2372816Y CN 99205260 CN99205260U CN2372816Y CN 2372816 Y CN2372816 Y CN 2372816Y CN 99205260 CN99205260 CN 99205260 CN 99205260 U CN99205260 U CN 99205260U CN 2372816 Y CN2372816 Y CN 2372816Y
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- storage battery
- accumulator
- bus
- protection circuit
- discharges
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Abstract
The utility model discloses an accumulator protective device, which comprises a plurality of accumulator protectors, a pair of accumulator average discharge generating lines and a data transmission generating line, wherein, the accumulator protector comprises an overcharge protection circuit, an overdischarge protection circuit and an accumulator state supervised circuit, wherein, the input ends of the overdischarge protection circuit are uniformly connected with the accumulator average discharge generating lines and are respectively electrically connected with the positive and negative pole ends of the output of an accumulator battery. The input ends of the accumulator state supervised circuit are connected with the data transmission generating line and are connected to a data acquisition and handling device. By the overcharge protection circuit, the charging current of an individual accumulator which is loaded in advance is discharged from a bypass. A part of energy can be replenished to the undersized accumulator in the discharge process of the accumulator by the overdischarge protection circuit. The operating state of each accumulator in the accumulator battery can be measured by the accumulator state supervised circuit and each measured parameter is sent to a central supervised system via the data transmission generating line.
Description
The utility model relates to a kind of protective device of batteries, is meant a kind of super-charge super-discharge defencive function that has especially, can carry out the accumulator protecting device of status monitoring simultaneously to each storage battery.
At present used batteries majority is to be in series by a plurality of cell batteries or sub-batteries in communication office station, electric power power transmission and transformation station and large-scale uninterrupted power supply (ups) Unity system.Because the capacity of each storage battery can not be identical, so understanding some storage battery in charging process is full of in advance, but whole group storage battery underfill still this moment, charging process is still continuing, will cause the storage battery overcharge that is full of electricity in advance like this, electricity liquid excessively volatilizees, and makes battery capacity descend rapidly.In the process of discharge, those capacity storage battery little or that capacity has descended can shift to an earlier date the emptying electricity equally, and the also not all emptying as yet of batteries this moment, discharge process is also continuing.The storage battery of emptying so in advance will cause overdischarge or antipole charging, thereby quickens the ageing process of storage battery, reduces the life of storage battery greatly.
In view of the foregoing, the existing various accumulator monitoring protective devices of developing.Have plenty of the lead-in wire of each storage battery in the batteries guided on the common device and measure monitoring, pinpointing the problems in time reports to the police handles; Some is with bypass protector in parallel on each cell batteries, when accumulator super-charge, excessive charging current is released from shunting device.More than two kinds of methods, first kind can only solve the measurement problem, and lead-in wire too much to implement difficulty big, dangerous, n storage battery arranged in the batteries, will have the n+1 bar to go between; Second kind of problem that can only solve overcharge of a battery, and can not solve the overdischarge problem.
The purpose of this utility model just is to provide a kind of protective device of batteries; when in the batteries during some overcharge of a battery; by it charging current is released from bypass; and in the discharge process of batteries, the storage battery of off-capacity replenished part energy; prevented to put and the generation of overcharging, prolonged the useful life of batteries.
Further purpose of the present utility model is to provide a kind of protective device of batteries; can monitor the operating state of each storage battery in the batteries simultaneously; and the parameter that records passed to the center collection monitoring system, and monitor the operating state of storage battery in real time, reduce maintenance workload.
The purpose of this utility model is achieved through the following technical solutions:
A kind of accumulator protecting device comprises a plurality of storage battery protecting devices and a pair of storage battery bus that all discharges, and these storage battery protecting devices are the positive and negative end that is connected in parallel on each storage battery; Each storage battery protecting device comprises overcharge protection circuit and over-discharge protection circuit; wherein; the overcharge protection circuit two ends are connected in parallel on the positive and negative end of storage battery; the output of over-discharge protection circuit also is connected in parallel on the positive and negative end of storage battery; its input all is connected with the described storage battery bus that all discharges, and this storage battery bus that all discharges is electrically connected on the positive and negative extreme of batteries output respectively.
According to technique scheme; described accumulator protecting device also includes a transfer of data bus; described storage battery protecting device also includes a battery condition supervisory circuit; this battery condition supervisory circuit comprises a tension measuring circuit at least; its voltage measurement input is connected in parallel on the positive and negative end of storage battery; output all is connected with described transfer of data bus, and is connected to a data acquisition processing device.
The above-mentioned storage battery bus that all discharges can be the direct-flow storage battery bus that all discharges; above-mentioned over-discharge protection circuit is DC-DC (DC/DC) converter; the output and the storage battery of this DC to DC converter are connected in parallel; its input all is connected with this direct-flow storage battery bus that all discharges, and this direct-flow storage battery bus that all discharges then is connected in the positive and negative terminal of batteries output.
The above-mentioned storage battery bus that all discharges can be the alternating accumulator bus that all discharges, above-mentioned over-discharge protection circuit is ac/dc (AC/DC) translation circuit, and it exchanges input is attempted by storage battery by the output of the direct current behind transformer conversion and the diode rectification positive and negative end; The output of the direct current of above-mentioned batteries output after a switching circuit is transformed into interchange connects a pair of alternating accumulator bus that all discharges, and the ac input end of these AC/DC translation circuits all is connected this alternating accumulator bus that all discharges.
According to technique scheme, described overcharge protection circuit two ends also can be connected in parallel on the positive and negative end of storage battery by a current sensor.The output of described over-discharge protection circuit also is connected in parallel on the positive and negative end of storage battery by this current sensor.
According to technique scheme, described battery condition supervisory circuit also comprises a current measurement circuit, and its current measurement input is connected in parallel on the two ends of above-mentioned current sensor.This battery condition supervisory circuit can be that model is the battery condition watch-dog of DS2437.
Because the utility model all is connected to a storage battery protecting device for each storage battery in the batteries of using in series connection, this storage battery protecting device is connected on the two-terminal of storage battery.By overcharge protection circuit wherein, the charging current of indivedual storage batterys that are full of is in advance released from bypass; Can be in the battery discharging process, by over-discharge protection circuit with the additional part energy of the storage battery of off-capacity.In addition because the utility model also has the battery monitor device simultaneously, can measure the operating state of each storage battery in the batteries, as cell voltage, super-charge super-discharge electric current and working temperature etc., and the parameters that records passed to central monitor system by the transfer of data bus.
Since the principal element that influence life of storage battery be overcharge, overdischarge and high-temperature charging, so can prolong the useful life of batteries greatly after using the utility model, and can make batteries reach the heap(ed) capacity application.Since the utility model can the every joint storage battery of real time monitoring operating state, the battery monitor system can print the storage battery operation form of every day by this, has deducted the manual detection work of every day, saves manpower, reduces maintenance workload.Because use of the present utility model can be loosened the conforming requirement of each accumulator parameter in the batteries, and can the new and old different storage battery of same model is shared.
Below in conjunction with drawings and the specific embodiments the utility model is further described in more detail.
Fig. 1 is an application connection diagram of the present utility model.
Fig. 2 is the electrical schematic diagram of the utility model storage battery protecting device.
Fig. 3 is the overcharge protection circuit figure of the utility model storage battery protecting device.
Fig. 4 is the over-discharge protection circuit figure of the utility model storage battery protecting device.
Fig. 5 is all the discharge generating principle schematic diagram of bus of alternating accumulator shown in Figure 4.
At first, see also shown in Figure 1, the utility model accumulator protecting device by with batteries in all discharge bus 20 and transfer of data bus 30 of storage battery protecting device 10, a pair of storage battery of the corresponding number of storage battery number form.Wherein storage battery protecting device 10 is for being connected in parallel on the two ends of each storage battery, and referring to shown in Figure 2, it comprises overcharge protection circuit 101, over-discharge protection circuit 102 and battery monitoring circuit 103.Overcharge protection circuit 101, over-discharge protection circuit 102 all are connected in parallel on the two ends of storage battery Bi by a current sensor Ri; all discharge on the bus 20 and the input of over-discharge protection circuit 102 is connected above-mentioned storage battery, the output of battery monitoring circuit 103 is connected in above-mentioned transfer of data bus 30.The storage battery bus 20 that all discharges is connected with the input of the over-discharge protection circuit of each storage battery protecting device, and is electrically connected with output Port+, the Port-of batteries.Transfer of data bus 30 is connected with the output of the battery monitoring circuit of each storage battery protecting device, and is connected with the FPDP Port Data of the data acquisition processing device of far-end.
In charging process,, then can charging current be released from bypass by the overcharge protection circuit of this storage battery protecting device in parallel with this storage battery if indivedual storage batterys wherein are full of in advance in batteries; In discharge process in batteries, if exist discharge inhomogeneous, can be by the over-discharge protection circuit of this storage battery protecting device in parallel, with the additional part energy of the storage battery of off-capacity with this storage battery.This is because the output by battery overdischarge bus and batteries of the input of this over-discharge protection circuit is electrically connected; 1/n (n is the number of storage battery in the batteries) voltage transformation by over-discharge protection circuit; its output is connected the two ends of storage battery; storage battery there is additional effect; avoid causing overdischarge, make indivedual storage batterys cause damage owing to indivedual battery capacitys are not enough.
Referring to shown in Figure 3, the overcharge protection circuit of the utility model storage battery protecting device, regulate the reference voltage V 0 of voltage-stabiliser tube D0, make when the storage battery underfill, the voltage Vi of amplifier OPAMP end of oppisite phase is lower than this reference voltage V 0, be output as 0, then the field effect transistor of its connection is ended, and charging current continues to charge to this storage battery; And when storage battery is full of, the storage battery both end voltage increases, make the voltage Vi of amplifier OPAMP in-phase end be higher than this reference voltage V 0, then amplifier is output as 1, the field effect transistor conducting of its connection, thereby the charging current of storage battery is released, make the storage battery can be not impaired, and make other storage battery can continue charging because of overcharging.
Referring to shown in Figure 4; be the storage battery of the storage battery protecting device over-discharge protection circuit of bus when being ac bus that all discharge; be made up of the rectification circuit that transformer T and diode D1, D2 form, wherein the conversion ratio of transformer T is n: 1, and n equals the number of storage battery in the batteries here.Figure 5 shows that all the discharge formation schematic diagram of bus of this alternating accumulator; the direct voltage of batteries output; the conversion of the switching circuit of forming through S1, S2, S3, S4; output AC voltage is connected to the transformer input of the over-discharge protection circuit of each storage battery protecting device through the alternating accumulator bus that all discharges; through the rectification of 1/n voltage transformation and rectification circuit, output (1/n
*Batteries output) direct voltage is to the two ends of storage battery.Make in the discharge process of batteries,, the storage battery of off-capacity can be replenished part energy, avoid the overdischarge phenomenon of indivedual storage batterys if exist discharge inhomogeneous, the protection storage battery, and can make this batteries reach the heap(ed) capacity application.
The bus cost is low, realization is simple to utilize alternating accumulator all to discharge, but electromagnetic interference is big.The bus that all discharges of the storage battery here also can be the direct-flow storage battery bus that all discharges; over-discharge protection circuit adopts the DC/DC converter; the two ends of its output and storage battery also connect; input all connects the direct-flow storage battery bus that all discharges, and this direct-flow storage battery bus that all discharges then is connected with the both positive and negative polarity of batteries output respectively.The storage battery that direct current the is realized bus electromagnetic interference of all discharging is little, and corresponding cost is higher.
Battery condition supervisory circuit among the utility model embodiment is realized by battery condition watch-dog DS2437.It can measure terminal voltage, the battery overdischarge supplemental current of storage battery and the working temperature of overcharge leakage current and storage battery etc., its output is connected to the transfer of data bus, acquisition controlling center control by far-end, upload the data to Surveillance center, supervisory control system by the center, operating state that can the every joint storage battery of real time monitoring prints the operation form of storage battery every day.Temperature regime in the time of can also passing through to monitor charge in batteries is for the control charging current provides reference.
In a word, the utlity model has easy realization simple in structure, be installed in the life-span that can prolong batteries on the batteries, reduce maintenance workload, be adapted to occasions such as unattended station especially.
Claims (8)
1, a kind of accumulator protecting device is characterized in that: this accumulator protecting device comprises a plurality of storage battery protecting devices and a pair of storage battery bus that all discharges, and these storage battery protecting devices are the positive and negative end that is connected in parallel on each storage battery; Each storage battery protecting device comprises overcharge protection circuit and over-discharge protection circuit; wherein; the overcharge protection circuit two ends are connected in parallel on the positive and negative end of storage battery; the output of over-discharge protection circuit also is connected in parallel on the positive and negative end of storage battery; its input all is connected with the described storage battery bus that all discharges, and this storage battery bus that all discharges is electrically connected on the positive and negative extreme of batteries output respectively.
2, accumulator protecting device according to claim 1; it is characterized in that: described accumulator protecting device also includes a transfer of data bus; described storage battery protecting device also includes a battery condition supervisory circuit; this battery condition supervisory circuit comprises a tension measuring circuit at least; its voltage measurement input is connected in parallel on the positive and negative end of storage battery; output all is connected with described transfer of data bus, and is connected to a data acquisition processing device.
3, accumulator protecting device according to claim 1 and 2; it is characterized in that: the described storage battery bus that all discharges is the direct-flow storage battery bus that all discharges; described over-discharge protection circuit is DC-DC (DC/DC) converter; the output and the storage battery of this DC to DC converter are connected in parallel; its input all is connected with this direct-flow storage battery bus that all discharges, and this direct-flow storage battery bus that all discharges then is connected in the positive and negative terminal of batteries output.
4, accumulator protecting device according to claim 1 and 2, it is characterized in that: the described storage battery bus that all discharges is the alternating accumulator bus that all discharges, described over-discharge protection circuit is ac/dc (AC/DC) translation circuit, and it exchanges input is attempted by storage battery by the output of the direct current behind transformer conversion and the diode rectification positive and negative end; The output of the direct current of above-mentioned batteries output after a switching circuit is transformed into interchange connects a pair of alternating accumulator bus that all discharges, and the ac input end of these AC/DC translation circuits all is connected this alternating accumulator bus that all discharges.
5, accumulator protecting device according to claim 1 is characterized in that: described overcharge protection circuit two ends are connected in parallel on the positive and negative end of storage battery by a current sensor.
6, accumulator protecting device according to claim 1 is characterized in that: the output of described over-discharge protection circuit is connected in parallel on the positive and negative end of storage battery by a current sensor.
7, accumulator protecting device according to claim 2 is characterized in that: described battery condition supervisory circuit also comprises a current measurement circuit, and its current measurement input is connected in parallel on the two ends of above-mentioned current sensor.
8, according to claim 2 or 7 described accumulator protecting devices, it is characterized in that: the battery condition watch-dog that described battery condition supervisory circuit is model DS2437.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99205260 CN2372816Y (en) | 1999-04-05 | 1999-04-05 | Accumulator protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99205260 CN2372816Y (en) | 1999-04-05 | 1999-04-05 | Accumulator protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2372816Y true CN2372816Y (en) | 2000-04-05 |
Family
ID=33999857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99205260 Expired - Fee Related CN2372816Y (en) | 1999-04-05 | 1999-04-05 | Accumulator protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2372816Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100377465C (en) * | 2001-09-03 | 2008-03-26 | 金柏电子国际有限公司 | Intelligent serial cell charger and charging circuit block |
| CN100505466C (en) * | 2004-12-03 | 2009-06-24 | 比亚迪股份有限公司 | Distributed type battery managing system and managing method |
| CN101055985B (en) * | 2006-04-04 | 2011-01-19 | 梅塔波沃克有限公司 | Battery pack for electric hand-held power tool |
| CN107275698A (en) * | 2017-06-09 | 2017-10-20 | 镇江宇神动力能源有限公司 | A kind of automobile storage battery for carrying protection device |
-
1999
- 1999-04-05 CN CN 99205260 patent/CN2372816Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100377465C (en) * | 2001-09-03 | 2008-03-26 | 金柏电子国际有限公司 | Intelligent serial cell charger and charging circuit block |
| CN100505466C (en) * | 2004-12-03 | 2009-06-24 | 比亚迪股份有限公司 | Distributed type battery managing system and managing method |
| CN101055985B (en) * | 2006-04-04 | 2011-01-19 | 梅塔波沃克有限公司 | Battery pack for electric hand-held power tool |
| CN107275698A (en) * | 2017-06-09 | 2017-10-20 | 镇江宇神动力能源有限公司 | A kind of automobile storage battery for carrying protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |