CN103323787A - Automatic identification apparatus and automatic identification method for abnormal battery in base station lithium battery pack - Google Patents
Automatic identification apparatus and automatic identification method for abnormal battery in base station lithium battery pack Download PDFInfo
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- CN103323787A CN103323787A CN2013102879574A CN201310287957A CN103323787A CN 103323787 A CN103323787 A CN 103323787A CN 2013102879574 A CN2013102879574 A CN 2013102879574A CN 201310287957 A CN201310287957 A CN 201310287957A CN 103323787 A CN103323787 A CN 103323787A
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000002159 abnormal effect Effects 0.000 title claims abstract 15
- 238000012544 monitoring process Methods 0.000 claims abstract description 27
- 238000007599 discharging Methods 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000011084 recovery Methods 0.000 claims description 8
- 230000002441 reversible effect Effects 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 4
- 239000000178 monomer Substances 0.000 description 20
- 230000001681 protective effect Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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Abstract
本发明涉及基站锂电池组异常电池自动识别装置及方法，装置包括由基站开关电源、充放电开关单元构成的充放电回路以及监控该充放电回路充放电过程的监控单元，还包括用于对各单体电池电压检测及并行充电的电压检测与并行充电单元，该电压检测与并行充电单元的电压端子对应连接各单体电池，所述电压检测与并行充电单元的信号输出端子连接所述监控单元；本发明能够快速识别锂电池组中的异常电池，以便工作人员对异常电池进行维护或更换，从而延长锂电池组使用寿命。
The invention relates to a device and method for automatically identifying abnormal batteries of a lithium battery pack in a base station. The device includes a charging and discharging circuit composed of a switching power supply of a base station and a charging and discharging switch unit, and a monitoring unit for monitoring the charging and discharging process of the charging and discharging circuit, and also includes a monitoring unit for monitoring each Single battery voltage detection and parallel charging voltage detection and parallel charging unit, the voltage detection and parallel charging unit’s voltage terminals are correspondingly connected to each single battery, and the signal output terminals of the voltage detection and parallel charging unit are connected to the monitoring unit ; The present invention can quickly identify the abnormal battery in the lithium battery pack, so that the staff can maintain or replace the abnormal battery, thereby prolonging the service life of the lithium battery pack.
Description
Technical field
The invention belongs to the lithium cell charging technical field, relate to the unusual battery automatic identification equipment of a kind of base station lithium battery group and method.
Background technology
The lithium battery group is in floating charge and unmanned state for a long time in the use of communication base station, the irreversible capacitance loss that battery occurs under long-term floating charge state will be much larger than the irreversible capacity loss of battery under static condition, cause the shortening of actual life of lithium battery group, increase the battery use cost; And the maintainer can't judge according to the electric battery state serviceable life of electric battery, therefore often causes unexpected power-off of base station phenomenon, has caused serious economic loss.And the principal element that determines lithium battery group serviceable life is the short slab battery that exists self discharge large in the lithium battery group, therefore in order to improve electric battery serviceable life, the quick unusual battery in the identification lithium battery group is just safeguarded or is changed it, thereby prolongs lithium battery group serviceable life.
Summary of the invention
The purpose of this invention is to provide the unusual battery automatic identification equipment of a kind of base station lithium battery group and method, can't be according to causing unexpected power-off of base station problem the serviceable life of electric battery state judgement electric battery to solve the maintainer.
For realizing goal of the invention, the base station of the present invention unusual battery automatic identification equipment of lithium battery group comprises by the charging and discharging circuit of base station Switching Power Supply, charge and discharge switch cell formation and the monitoring unit of monitoring this charging and discharging circuit charge and discharge process, also comprise for each monomer battery voltage being detected and parallel voltage detecting and the parallel charhing unit that charges, corresponding each cell of connection of voltage terminal of this voltage detecting and parallel charhing unit, the described monitoring unit of signal output part sub-connection of described voltage detecting and parallel charhing unit.
Further, monitoring unit is control linkage the second gauge tap K2 also, and this gauge tap K2 is connected between the charging end of described voltage detecting and parallel charhing unit and described charging and discharging circuit.
Further, described monitoring unit also is connected with the current sampling resistor for detection of lithium battery group charging and discharging currents.
Further, described charge and discharge switch unit is by forward and reverse diode series connection, and forward and reverse diode is distinguished the parallel discharge switch, charge switch consists of.
Further, described monitoring unit also control linkage display unit is arranged.
The unusual battery automatic identifying method of base station lithium battery group of the present invention step is as follows:
(1) monitoring unit control charging and discharging circuit is to the charging of lithium battery group, until after the lithium battery group is in full power state, stop charging, and the beginning timing;
When the monomer that (2) is lower than setting when minimum monomer voltage in the electric battery overcharges the recovery voltage value, again the lithium battery group is charged;
(3) judge that the lithium battery group is from the time interval Δ t that stops to be charged to again charging whether less than the time t that sets, if then there is unusual cell in time interval Δ t in the lithium battery group less than the time t that sets;
(4) to every cell difference charge independence in the lithium battery group that has unusual cell, record each cell is down to monomer over-charge protective recovery voltage from full piezoelectric voltage corresponding time interval △ t
i, as △ t
iLess than the time t that sets
i, judge that then this battery is unusual battery, 1≤i≤n wherein, n is cell quantity in the lithium battery group.
Further, the criterion that the lithium battery group is in full power state in the described step (1) is: the high monomer voltage of lithium battery group is higher than monomer over-charge protective setting value or charging current less than the full electric setting value of lithium battery group.
Further, time interval △ t in the described step (3)
iBeing uploaded to display unit shows.
The unusual battery automatic identification equipment of base station of the present invention lithium battery group and method, adopt the double protection measure to improve the accuracy of unusual battery identification, the one, turn-off the time interval Δ t that again opens by the record charge switch, judge that there is unusual battery in the lithium battery group; The 2nd, by voltage detecting and parallel charhing unit every monomer is carried out low current charge, record every monomer is down to the over-charge protective recovery voltage from full piezoelectric voltage time interval △ t
i, as △ t
iSetting-up time t less than this cell
iThe time, judge that then this battery is unusual battery, use these apparatus and method can identify fast unusual battery in the lithium battery group, so that the staff safeguards unusual battery or change, thereby prolong lithium battery group serviceable life.
Description of drawings
Fig. 1 is the theory diagram of the unusual battery automatic identification equipment of base station lithium battery group of the present invention embodiment.
Embodiment
As shown in Figure 1, lithium battery group unusual battery automatic identification equipment in base station comprises by the base station Switching Power Supply, the charging and discharging circuit of charge and discharge switch cell formation, the monitoring unit of monitoring charging and discharging circuit charge and discharge process, be used for each monomer battery voltage is detected and parallel voltage detecting and the parallel charhing unit that charges, current sampling resistor and display unit for detection of lithium battery group charging and discharging currents, corresponding each cell of connection of voltage terminal of voltage detecting and parallel charhing unit, the signal output part sub-connection monitoring unit of voltage detecting and parallel charhing unit, monitoring unit is control linkage the first gauge tap K1 and the second gauge tap K2 also, the first gauge tap K1 is connected between the charging end of lithium battery group and charging and discharging circuit, and the second gauge tap K2 is connected between the charging end of voltage detecting and parallel charhing unit and charging and discharging circuit.The charge and discharge switch unit is by forward and reverse diode series connection, and forward and reverse diode is distinguished the parallel discharge switch, charge switch consists of.
In electric battery under normal circumstances, the first gauge tap K1 is closed in this device control, the second gauge tap K2 disconnects, the float charging function of base station Switching Power Supply is closed, only use even charging voltage that the lithium battery group is carried out the batch (-type) charging, this device detects each monomer voltage of electric battery by voltage detecting and parallel charhing unit, detect the battery set charge/discharge electric current by current sampling resistor, and will detect the voltage of gained, current value uploads to monitoring unit, when the high monomer voltage of electric battery is higher than monomer over-charge protective setting value or charging current less than the full electric setting value of electric battery, judge that then the lithium battery group has been in full power state, monitoring unit will be controlled charge and discharge switch unit charge closing switch, stop the charging of lithium battery group, electric battery enters full electric static condition, and timer begins timing; After date when the lithium battery group is shelved one section, owing to battery itself causes the loss of lithium battery pool-size from reasons such as power down and device power consumptions, when voltage detecting and parallel charhing unit detect in the electric battery minimum monomer voltage and are lower than monomer and overcharge the recovery voltage value, monitoring unit will be controlled charge and discharge switch and reopen charge switch and continue the lithium battery group is charged, the timer record charge switch is from turn-offing the time interval Δ t that again opens, when time interval of delta t during less than the time t that sets, think to have the serious cell of performance degradation in the electric battery.In order accurately to identify the unusual battery in the lithium battery group; monitoring unit control K1 turn-offs; K2 opens; use little electric current namely by voltage detecting and parallel charhing unit to the charging that walks abreast of every monomer; until every monomer all is full of electricity, every monomer of timer record is down to the time interval △ t of monomer over-charge protective recovery voltage from full piezoelectric voltage
i, and temporal information is uploaded to display unit shows.As △ t
iLess than the time t that sets
i, judge that then this battery is unusual battery, wherein 1≤i≤n, n is cell quantity in the lithium battery group, the maintainer can be by the display unit fast finding to this Zhi Yichang battery, and it is safeguarded or changes, thereby improves lithium battery group service life cycle.
The present invention adopts the double protection measure to improve the accuracy of unusual battery identification, and the one, turn-off the time interval Δ t that again opens by the record charge switch, judge that there is unusual battery in the lithium battery group; The 2nd, by voltage detecting and parallel charhing unit every monomer is carried out low current charge, record every monomer is down to the over-charge protective recovery voltage from full piezoelectric voltage time interval △ t
i, as △ t
iSetting-up time t less than this cell
i, judge that then this battery is unusual battery.
It should be noted last that: above embodiment is the non-limiting technical scheme of the present invention in order to explanation only, although with reference to above-described embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that; Still can make amendment or be equal to replacement the present invention, and not break away from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310287957.4A CN103323787B (en) | 2013-07-09 | 2013-07-09 | Abnormal battery in base station lithium battery pack automatic identifying method |
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| CN201310287957.4A CN103323787B (en) | 2013-07-09 | 2013-07-09 | Abnormal battery in base station lithium battery pack automatic identifying method |
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| CN103323787B CN103323787B (en) | 2016-01-06 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532871A (en) * | 2016-12-31 | 2017-03-22 | 刘杰 | Charge and discharge control method for echelon lithium battery in communication base station |
| CN106680734A (en) * | 2016-12-20 | 2017-05-17 | 宇龙计算机通信科技(深圳)有限公司 | Monitoring method of terminal faults and terminal |
| CN107276158A (en) * | 2017-06-22 | 2017-10-20 | 深圳拓邦股份有限公司 | A kind of current detection circuit |
| CN107817418A (en) * | 2017-09-29 | 2018-03-20 | 漳州科华技术有限责任公司 | A kind of detection method and system of battery connection status |
| CN108196189A (en) * | 2017-11-14 | 2018-06-22 | 歌尔科技有限公司 | A kind of method and apparatus for detecting double cell product battery exception |
| CN112630676A (en) * | 2020-12-16 | 2021-04-09 | 南通融盛智能科技有限公司 | Automatic identification device and method for abnormal batteries of lithium battery pack of base station |
| CN113866660A (en) * | 2021-09-07 | 2021-12-31 | 国网湖南省电力有限公司 | Monitoring system and monitoring equipment for back-up power supply of breaker on deep fusion column |
| CN114089651A (en) * | 2021-09-30 | 2022-02-25 | 双登集团股份有限公司 | Voltage type abnormal protection mode |
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| CN112630676A (en) * | 2020-12-16 | 2021-04-09 | 南通融盛智能科技有限公司 | Automatic identification device and method for abnormal batteries of lithium battery pack of base station |
| CN113866660A (en) * | 2021-09-07 | 2021-12-31 | 国网湖南省电力有限公司 | Monitoring system and monitoring equipment for back-up power supply of breaker on deep fusion column |
| CN114089651A (en) * | 2021-09-30 | 2022-02-25 | 双登集团股份有限公司 | Voltage type abnormal protection mode |
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| CN103323787B (en) | 2016-01-06 |
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Effective date of registration: 20211229 Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: Zhongchuangxin Aviation Technology Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |
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Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: China Innovation Aviation Technology Group Co.,Ltd. Country or region after: China Address before: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: Zhongchuangxin Aviation Technology Co.,Ltd. Country or region before: China |