CN103311965A - Intelligent management device and method of charging and discharging of parallel-connected battery group - Google Patents
Intelligent management device and method of charging and discharging of parallel-connected battery group Download PDFInfo
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- CN103311965A CN103311965A CN2012100598181A CN201210059818A CN103311965A CN 103311965 A CN103311965 A CN 103311965A CN 2012100598181 A CN2012100598181 A CN 2012100598181A CN 201210059818 A CN201210059818 A CN 201210059818A CN 103311965 A CN103311965 A CN 103311965A
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Abstract
The invention provides an intelligent management device and method of a charging and discharging of a parallel-connected battery group. The device comprises a charging and discharging loop, a charging and discharging control circuit, a main control panel, a system terminal which is used for connecting a load or an external power supply, and a battery terminal which is used for connecting a plurality of battery units in parallel. Besides, each of the battery units comprises a single body battery and a single body battery control module. The main control panel controls the charging and discharging state of the single body batter via the single body battery control module. Therefore, the charging or discharging state of each battery in the parallel-connected battery group can be monitored in real time. When the battery is at an abnormal charging or discharging state in the parallel-connected battery group, a necessary measure is adopted to protect the abnormal battery in a targeted manner and an alarm signal is sent out so that an overall use efficacy and an overall service life of the parallel-connected battery group are enhanced.
Description
Technical field
The invention belongs to circuit control technology field, be specifically related to a kind of batteries in parallel connection group and discharge and recharge intelligent management apapratus and method.
Background technology
The batteries in parallel connection group is comprised of several cell parallels, thereby provides stronger current value to power consumption equipment.In the desirable batteries in parallel connection group, the operating voltage of each battery all should be consistent with actual capacity.But, because the problem of technique and material, can there be certain difference in the bulk properties of each battery, and, discharge and recharge the increase of number of times along with the batteries in parallel connection group, this otherness of each battery can increase gradually, and then has increased the weight of the disequilibrium between each battery, has finally reduced the integral body of batteries in parallel connection group and has used effect.
For example: when to batteries in parallel connection group charging or batteries in parallel connection group in the process of load discharge, because the disequilibrium of each battery, the situation of certain or certain several over-charging of battery or overdischarge can often occur, thereby the integral body that has reduced the batteries in parallel connection group is used effect and whole service life.
Summary of the invention
Defective for the prior art existence; the invention provides a kind of batteries in parallel connection group and discharge and recharge intelligent management apapratus and method; the charge or discharge state of each battery in can Real-Time Monitoring batteries in parallel connection group; when the battery of charge or discharge abnormal state occurring in the batteries in parallel connection group; can take necessary safeguard measure to unusual battery targetedly; and send alarm signal to the external world, thereby the integral body that has improved the batteries in parallel connection group is used effect and whole service life.
The technical solution used in the present invention is as follows:
The invention provides a kind of batteries in parallel connection group and discharge and recharge intelligent management apapratus, charging and discharging circuit, charge-discharge control circuit, master control borad, the battery-end that is used for the system end that is connected with load or extraneous power supply and is used for being connected in parallel with several battery units; Described charging and discharging circuit is connected between described system end and the described battery-end, and described master control borad is controlled the break-make of described charging and discharging circuit by described charge-discharge control circuit; And each described battery unit comprises: cell and cell control module, described master control borad are controlled the charge status of described cell by described cell control module.
Preferably, described cell control module comprises: charging control electronic circuit and control of discharge electronic circuit; Described charging control electronic circuit and described control of discharge electronic circuit are connected in the two ends of described cell in parallel.
Preferably, described cell control module also comprises: current limliting is adjusted electronic circuit, and described current limliting is adjusted electronic circuit and connected with described charging control electronic circuit.
Preferably, described charge-discharge control circuit is the first switch element, and described charging control electronic circuit is the second switch element, and described control of discharge electronic circuit is the 3rd switch element, and it is the 4th switch element that described current limliting is adjusted electronic circuit.
Preferably, described the first switch element is D.C. contactor, and described second switch element is the second metal-oxide-semiconductor, and described the 3rd switch element is the 3rd metal-oxide-semiconductor, and described the 4th switch element is the 4th metal-oxide-semiconductor; Described the second metal-oxide-semiconductor and described the 3rd metal-oxide-semiconductor reverse parallel connection are connected to the two ends of described cell.
Preferably, also comprise: above voltage detection device and/or an above current detecting device and/or an above temperature detection device; Described voltage detection device is connected in the voltage detecting point place that described batteries in parallel connection group discharges and recharges intelligent management apapratus, described current detecting device is connected in the current detecting point place that described batteries in parallel connection group discharges and recharges intelligent management apapratus, and described temperature detection device is installed in the temperature detecting point place that described batteries in parallel connection group discharges and recharges intelligent management apapratus; Described master control borad is connected with described voltage detection device, described current detecting device and the temperature detection device of being connected respectively.
Preferably, described voltage detection device is voltage sensor, and described current detecting device is current sensor, and described temperature detection device is temperature sensor.
Preferably, described voltage detecting point comprises: the terminal voltage test point of each described cell and/or the terminal voltage test point of described system end; Described current detecting point comprises: the total current test point of the current detecting point of each described cell branch road and/or described system end; Described temperature detecting point comprises: described batteries in parallel connection group discharges and recharges the temperature detecting point of intelligent management apapratus environment of living in and/or the hull-skin temperature test point of each described cell.
Preferably, also comprise: panel, described panel is connected with described master control borad.
The present invention also provides a kind of batteries in parallel connection group to discharge and recharge intelligent management, may further comprise the steps:
S1, described master control borad obtain the current state that described batteries in parallel connection group discharges and recharges system end described in the intelligent management apapratus and/or each described battery unit;
S2, described master control borad control the operating state of described charge-discharge control circuit and each described cell control module according to described current state.
Preferably, described current state comprises: the magnitude of voltage at charged state, discharge condition, described voltage detecting point place, the current value at described current detecting point place, the temperature value at described temperature detecting point place; Wherein, described voltage detecting point comprises: the terminal voltage test point of each described cell and/or the terminal voltage test point of described system end; Described current detecting point comprises: the total current test point of the current detecting point of each described cell branch road and/or described system end; Described temperature detecting point comprises: described batteries in parallel connection group discharges and recharges the temperature detecting point of intelligent management apapratus environment of living in and/or the hull-skin temperature test point of each described cell.
Preferably, after the S1, also comprise:
S3, described master control borad judge whether described current state is normal, if the determination result is NO, then send warning message to described panel.
Beneficial effect of the present invention is as follows:
Batteries in parallel connection group provided by the invention discharges and recharges intelligent management apapratus and method, have the following advantages: (1) master control borad can Real-time Obtaining batteries in parallel connection group in the charging and discharging state of each cell, and control the charge status of each cell by the on off operating mode of the control cell control module corresponding with each cell, avoided overcharging or the generation of over-discharge situation of each cell, thereby the integral body that has improved the batteries in parallel connection group is used effect and whole service life.(2) master control borad can Real-time Obtaining batteries in parallel connection group in magnitude of voltage and/or the current value of system end, and control batteries in parallel connection group charge status by this magnitude of voltage and/or current value, thereby expanded the scope that batteries in parallel connection group charging and discharging state is monitored, further avoid overcharging or the generation of over-discharge situation of each cell, prolonged the whole service life of batteries in parallel connection group.(3) master control borad can detect the temperature conditions of magnitude of voltage, current value or battery environment of living in the charge or discharge process of batteries in parallel connection group in real time, thereby compare according to the value that detects and preset value, when surpassing preset value, report to the police to the external world, thereby improved fail safe in the use procedure of batteries in parallel connection group.
Description of drawings
Fig. 1 is the structural representation that batteries in parallel connection group provided by the invention discharges and recharges intelligent management apapratus.
Embodiment
Batteries in parallel connection group provided by the invention is discharged and recharged intelligent management apapratus and method describes in detail below in conjunction with accompanying drawing:
The invention provides a kind of batteries in parallel connection group and discharge and recharge intelligent management apapratus, comprising: the system end that is used for being connected with load or extraneous power supply, for the battery-end, charging and discharging circuit, charge-discharge control circuit and the master control borad that are connected in parallel with several battery units; Charging and discharging circuit is connected between system end and the battery-end, and master control borad is by the break-make of charge-discharge control circuit control charging and discharging circuit; And each battery unit comprises: cell and cell control module, master control borad is by the charge status of cell control module control cell.Among the present invention, master control borad can Real-time Obtaining batteries in parallel connection group in the charging and discharging state of each cell, and control the charge status of each cell by the on off operating mode of the control cell control module corresponding with each cell, avoided overcharging or the generation of over-discharge situation of each cell, thereby the integral body that has improved the batteries in parallel connection group is used effect and whole service life.
According to actual needs, the cell control module can comprise: charging control electronic circuit and control of discharge electronic circuit; Charging control electronic circuit and control of discharge electronic circuit are connected in the two ends of cell in parallel.Can further include: current limliting is adjusted electronic circuit, and current limliting is adjusted electronic circuit and connected with charging control electronic circuit.Concrete, charge-discharge control circuit can be the first switch element, and charging control electronic circuit can be the second switch element, and the control of discharge electronic circuit can be the 3rd switch element, and current limliting is adjusted electronic circuit can be the 4th switch element.Advance specifically, the first switch element can be D.C. contactor, and the second switch element can be the second metal-oxide-semiconductor, and the 3rd switch element can be the 3rd metal-oxide-semiconductor, and the 4th switch element can be the 4th metal-oxide-semiconductor; The second metal-oxide-semiconductor and the 3rd metal-oxide-semiconductor reverse parallel connection are connected to the two ends of cell.
Be to improve master control borad to the effect of batteries in parallel connection group charging and discharging state comprehensive monitoring, also comprise: above voltage detection device and/or an above current detecting device and/or an above temperature detection device; Wherein, voltage detection device is connected in the voltage detecting point place that the batteries in parallel connection group discharges and recharges intelligent management apapratus, the current detecting device is connected in the current detecting point place that the batteries in parallel connection group discharges and recharges intelligent management apapratus, and temperature detection device is installed in the temperature detecting point place that the batteries in parallel connection group discharges and recharges intelligent management apapratus; Master control borad is connected with temperature detection device with voltage detection device, current detecting device respectively.In actual applications, voltage detection device can be voltage sensor, and the current detecting device can be current sensor, and temperature detection device can be temperature sensor.And the voltage detecting point comprises: the terminal voltage test point of each cell and/or the terminal voltage test point of system end; The current detecting point comprises: the total current test point of the current detecting point of each cell branch road and/or system end; Temperature detecting point comprises: the batteries in parallel connection group discharges and recharges the temperature detecting point of intelligent management apapratus environment of living in and/or the hull-skin temperature test point of each cell.Therefore, magnitude of voltage, current value and temperature value that master control borad can be uploaded by voltage detection device, current detecting device and temperature detection device, thereby more fully obtain the running status of system end and each cell in the batteries in parallel connection group charge and discharge process, thereby take corresponding executive measure according to the size of magnitude of voltage, current value and temperature value, realized the function to the real-time overall monitor of batteries in parallel connection group charge and discharge process.
In addition, master control borad also is connected with panel, and by the operation of each the operation push-button control master control borad on the panel, and the various data communication devices that master control borad obtains are crossed panel can be uploaded to host computer.In addition, when the batteries in parallel connection group charge or discharge data exception of master control borad monitoring, also by the alarm equipment alarm on the panel.
The present invention also provides a kind of batteries in parallel connection group to discharge and recharge intelligent management, may further comprise the steps:
S1, master control borad obtain the current state that the batteries in parallel connection group discharges and recharges system end in the intelligent management apapratus and/or each battery unit;
Wherein, current state comprises: the magnitude of voltage at charged state, discharge condition, voltage detecting point place, the current value at current detecting point place, the temperature value at temperature detecting point place; Wherein, the voltage detecting point comprises: the terminal voltage test point of each cell and/or the terminal voltage test point of system end; The current detecting point comprises: the total current test point of the current detecting point of each cell branch road and/or system end; Temperature detecting point comprises: the batteries in parallel connection group discharges and recharges the temperature detecting point of intelligent management apapratus environment of living in and/or the hull-skin temperature test point of each cell.
S2, master control borad is according to the operating state of described current state control charge-discharge control circuit and each cell control module.
For example: in charging process, when the charging current that detects some cell A surpasses default maximum, burnt for avoiding electric current, need to close the charging control electronic circuit A for control cell A charged state; At this moment, if the charging current of other cells in default range of normal value, then other cells still charge normal.That is to say, among the present invention, can carry out independent control to each cell respectively, when the unusual cell of existence, can lead normal cell to this targetedly and control, and can not affect the working condition of other normal cells.
Need to prove, the present invention can arrange at the master control borad place various charging overvoltages, discharge is under-voltage, discharge and recharge the safeguard measure such as overcurrent, thereby improves batteries in parallel connection group safety in utilization.
After the S1, also comprise:
S3, master control borad judge whether current state is normal, if the determination result is NO, then send warning message to panel.
Batteries in parallel connection group provided by the invention discharges and recharges intelligent management apapratus and method, have the following advantages: (1) master control borad can Real-time Obtaining batteries in parallel connection group in the charging and discharging state of each cell, and control the charge status of each cell by the on off operating mode of the control cell control module corresponding with each cell, avoided overcharging or the generation of over-discharge situation of each cell, thereby the integral body that has improved the batteries in parallel connection group is used effect and whole service life.(2) master control borad can Real-time Obtaining batteries in parallel connection group in magnitude of voltage and/or the current value of system end, and control batteries in parallel connection group charge status by this magnitude of voltage and/or current value, thereby expanded the scope that batteries in parallel connection group charging and discharging state is monitored, further avoid overcharging or the generation of over-discharge situation of each cell, prolonged the whole service life of batteries in parallel connection group.(3) master control borad can detect the temperature conditions of magnitude of voltage, current value or battery environment of living in the charge or discharge process of batteries in parallel connection group in real time, thereby compare according to the value that detects and preset value, when surpassing preset value, report to the police to the external world, thereby improved fail safe in the use procedure of batteries in parallel connection group.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
Claims (12)
1. a batteries in parallel connection group discharges and recharges intelligent management apapratus, it is characterized in that, comprising: charging and discharging circuit, charge-discharge control circuit, master control borad, the battery-end that is used for the system end that is connected with load or extraneous power supply and is used for being connected in parallel with several battery units; Described charging and discharging circuit is connected between described system end and the described battery-end, and described master control borad is controlled the break-make of described charging and discharging circuit by described charge-discharge control circuit; And each described battery unit comprises: cell and cell control module, described master control borad are controlled the charge status of described cell by described cell control module.
2. batteries in parallel connection group according to claim 1 discharges and recharges intelligent management apapratus, it is characterized in that, described cell control module comprises: charging control electronic circuit and control of discharge electronic circuit; Described charging control electronic circuit and described control of discharge electronic circuit are connected in the two ends of described cell in parallel.
3. batteries in parallel connection group according to claim 2 discharges and recharges intelligent management apapratus, it is characterized in that, described cell control module also comprises: current limliting is adjusted electronic circuit, and described current limliting is adjusted electronic circuit and connected with described charging control electronic circuit.
4. batteries in parallel connection group according to claim 3 discharges and recharges intelligent management apapratus, it is characterized in that, described charge-discharge control circuit is the first switch element, described charging control electronic circuit is the second switch element, described control of discharge electronic circuit is the 3rd switch element, and it is the 4th switch element that described current limliting is adjusted electronic circuit.
5. batteries in parallel connection group according to claim 4 discharges and recharges intelligent management apapratus, it is characterized in that, described the first switch element is D.C. contactor, and described second switch element is the second metal-oxide-semiconductor, described the 3rd switch element is the 3rd metal-oxide-semiconductor, and described the 4th switch element is the 4th metal-oxide-semiconductor; Described the second metal-oxide-semiconductor and described the 3rd metal-oxide-semiconductor reverse parallel connection are connected to the two ends of described cell.
6. batteries in parallel connection group according to claim 1 discharges and recharges intelligent management apapratus, it is characterized in that, also comprises: above voltage detection device and/or an above current detecting device and/or an above temperature detection device; Described voltage detection device is connected in the voltage detecting point place that described batteries in parallel connection group discharges and recharges intelligent management apapratus, described current detecting device is connected in the current detecting point place that described batteries in parallel connection group discharges and recharges intelligent management apapratus, and described temperature detection device is installed in the temperature detecting point place that described batteries in parallel connection group discharges and recharges intelligent management apapratus; Described master control borad is connected with described voltage detection device, described current detecting device and the temperature detection device of being connected respectively.
7. batteries in parallel connection group according to claim 6 discharges and recharges intelligent management apapratus, it is characterized in that, described voltage detection device is voltage sensor, and described current detecting device is current sensor, and described temperature detection device is temperature sensor.
8. batteries in parallel connection group according to claim 6 discharges and recharges intelligent management apapratus, it is characterized in that, described voltage detecting point comprises: the terminal voltage test point of each described cell and/or the terminal voltage test point of described system end; Described current detecting point comprises: the total current test point of the current detecting point of each described cell branch road and/or described system end; Described temperature detecting point comprises: described batteries in parallel connection group discharges and recharges the temperature detecting point of intelligent management apapratus environment of living in and/or the hull-skin temperature test point of each described cell.
9. batteries in parallel connection group according to claim 1 discharges and recharges intelligent management apapratus, it is characterized in that, also comprises: panel, described panel is connected with described master control borad.
10. the application rights batteries in parallel connection group that requires each described batteries in parallel connection group of 1-9 to discharge and recharge intelligent management apapratus discharges and recharges intelligent management, it is characterized in that, may further comprise the steps:
S1, described master control borad obtain the current state that described batteries in parallel connection group discharges and recharges system end described in the intelligent management apapratus and/or each described battery unit;
S2, described master control borad control the operating state of described charge-discharge control circuit and each described cell control module according to described current state.
11. batteries in parallel connection group according to claim 10 discharges and recharges intelligent management, it is characterized in that, described current state comprises: the magnitude of voltage at charged state, discharge condition, described voltage detecting point place, the current value at described current detecting point place, the temperature value at described temperature detecting point place; Wherein, described voltage detecting point comprises: the terminal voltage test point of each described cell and/or the terminal voltage test point of described system end; Described current detecting point comprises: the total current test point of the current detecting point of each described cell branch road and/or described system end; Described temperature detecting point comprises: described batteries in parallel connection group discharges and recharges the temperature detecting point of intelligent management apapratus environment of living in and/or the hull-skin temperature test point of each described cell.
12. batteries in parallel connection group according to claim 10 discharges and recharges intelligent management, it is characterized in that, after the S1, also comprises:
S3, described master control borad judge whether described current state is normal, if the determination result is NO, then send warning message to described panel.
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| CN201210059818.1A CN103311965B (en) | 2012-03-06 | 2012-03-06 | Batteries in parallel connection group discharge and recharge intelligent management apapratus and method |
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| CN105958140A (en) * | 2016-06-29 | 2016-09-21 | 广东亿纬赛恩斯新能源系统有限公司 | Lithium ion power battery protection device and method |
| CN106207283A (en) * | 2016-07-26 | 2016-12-07 | 同济大学 | A kind of supervising device of vehicle-mounted multiple-connected battery group |
| CN106685013A (en) * | 2017-03-13 | 2017-05-17 | 四川力垦锂动力科技有限公司 | Storage battery circuit structure |
| CN107508357A (en) * | 2017-09-15 | 2017-12-22 | 启攀微电子（上海）有限公司 | A kind of more piece lithium battery management system in parallel |
| CN107650718A (en) * | 2017-10-11 | 2018-02-02 | 吴光军 | A kind of electric vehicle rapid charging control circuit and control method |
| CN109733780A (en) * | 2019-01-04 | 2019-05-10 | 蔚来汽车有限公司 | Power battery intelligent warehousing system and method |
| TWI674730B (en) * | 2018-02-14 | 2019-10-11 | 加百裕工業股份有限公司 | Parallel battery system and method |
| CN110361670A (en) * | 2018-03-26 | 2019-10-22 | 株式会社京滨 | Voltage check device |
| CN110838746A (en) * | 2019-11-27 | 2020-02-25 | 深圳古瑞瓦特新能源股份有限公司 | Battery parallel circuit and battery parallel device |
| CN111030211A (en) * | 2019-11-28 | 2020-04-17 | 珠海格力电器股份有限公司 | Battery charging and discharging control method and device, storage medium and electric vehicle |
| CN111446752A (en) * | 2020-03-31 | 2020-07-24 | 东莞新能安科技有限公司 | Current limiting method, electronic device and storage medium |
| CN112290145A (en) * | 2020-11-26 | 2021-01-29 | 江苏博煦电池科技有限公司 | Lithium battery module |
| CN116774092A (en) * | 2023-08-18 | 2023-09-19 | 荣耀终端有限公司 | Battery detection method, circuit, device, chip and readable storage medium |
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| CN105958140A (en) * | 2016-06-29 | 2016-09-21 | 广东亿纬赛恩斯新能源系统有限公司 | Lithium ion power battery protection device and method |
| CN106207283A (en) * | 2016-07-26 | 2016-12-07 | 同济大学 | A kind of supervising device of vehicle-mounted multiple-connected battery group |
| CN106685013A (en) * | 2017-03-13 | 2017-05-17 | 四川力垦锂动力科技有限公司 | Storage battery circuit structure |
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| CN110838746B (en) * | 2019-11-27 | 2023-10-13 | 深圳古瑞瓦特新能源有限公司 | Battery parallel circuit and battery parallel device |
| CN111030211A (en) * | 2019-11-28 | 2020-04-17 | 珠海格力电器股份有限公司 | Battery charging and discharging control method and device, storage medium and electric vehicle |
| CN111446752A (en) * | 2020-03-31 | 2020-07-24 | 东莞新能安科技有限公司 | Current limiting method, electronic device and storage medium |
| CN111446752B (en) * | 2020-03-31 | 2023-05-30 | 东莞新能安科技有限公司 | Current limiting method, electronic device and storage medium |
| CN112290145A (en) * | 2020-11-26 | 2021-01-29 | 江苏博煦电池科技有限公司 | Lithium battery module |
| CN116774092A (en) * | 2023-08-18 | 2023-09-19 | 荣耀终端有限公司 | Battery detection method, circuit, device, chip and readable storage medium |
| CN116774092B (en) * | 2023-08-18 | 2024-04-09 | 荣耀终端有限公司 | Battery detection method, circuit, device, chip and readable storage medium |
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