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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Abstract
The invention relates to an automatic identification apparatus and an automatic identification method for an abnormal battery in a base station lithium battery pack. The apparatus comprises a charging/discharging circuit composed of a base station switching power supply and a charging/discharging switching unit, and a monitoring unit for monitoring charging/discharging processes of the charging/discharging circuit, and further comprises a voltage detection and parallel charging unit for voltage detection and parallel charging of various simple batteries, wherein a voltage terminal of the voltage detection and parallel charging unit is correspondingly connected with various simple batteries, and a signal output terminal of the voltage detection and parallel charging unit is connected with the monitoring unit. The automatic identification apparatus can rapidly identify the abnormal battery in the lithium battery pack, so as to facilitate workers to maintain or change the abnormal battery, thus 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)
1. the unusual battery automatic identification equipment of base station lithium battery group, comprise 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, it is characterized in that: 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.
2. the unusual battery automatic identification equipment of base station lithium battery group according to claim 1, it is characterized in that: 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.
3. the unusual battery automatic identification equipment of base station lithium battery group according to claim 1, it is characterized in that: described monitoring unit also is connected with the current sampling resistor for detection of lithium battery group charging and discharging currents.
4. the unusual battery automatic identification equipment of base station lithium battery group according to claim 1 is characterized in that: described charge and discharge switch unit is by forward and reverse diode series connection, and forward and reverse diode parallel discharge switch, charge switch consist of respectively.
5. the unusual battery automatic identification equipment of each described base station lithium battery group according to claim 1-4, it is characterized in that: described monitoring unit also control linkage has display unit.
6. the unusual battery automatic identifying method of base station lithium battery group is characterized in that, the step of the method 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.
7. the unusual battery automatic identifying method of base station lithium battery group according to claim 6; it is characterized in that, the lithium battery group is in the criterion of full power state and is in the described step (1): 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.
8. according to claim 6 or the unusual battery automatic identifying method of 7 described base station lithium battery groups, it is characterized in that time interval △ t in the described step (3)
iBeing uploaded to display unit shows.
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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 |
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| 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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| 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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