CN107394863A - The online active equalization system of communication storage battery group - Google Patents
The online active equalization system of communication storage battery group Download PDFInfo
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- CN107394863A CN107394863A CN201710861553.XA CN201710861553A CN107394863A CN 107394863 A CN107394863 A CN 107394863A CN 201710861553 A CN201710861553 A CN 201710861553A CN 107394863 A CN107394863 A CN 107394863A
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- 238000004891 communication Methods 0.000 title claims abstract description 51
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 238000012360 testing method Methods 0.000 claims description 35
- 230000005611 electricity Effects 0.000 claims description 11
- 238000007667 floating Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 6
- 239000000178 monomer Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to communication storage battery management domain, discloses a kind of online active equalization system of communication storage battery group, online active equalization is realized to communication storage battery group.The present invention includes batteries, switching network, control system, electronic power load, charger, reserve battery, Schottky diode and city's power detection circuit；Wherein, the controlled system control of switching network, detection circuit, city's power detection circuit are connected with control system；Batteries include N number of cell of number consecutively, and N is the integer more than or equal to 2；Switching network includes first switch, second switch group, the 4th switches set, if desired active equalization of battery is carried out, then charger is parallel on the battery for needing equilibrium by control system control second switch group, the 4th switches set, by charger to needing balanced battery to charge.The present invention is applied to communication storage battery group.
Description
Technical field
The present invention relates to the online active equalization system of communication storage battery management domain, more particularly to communication storage battery group.
Background technology
Communication power supply is part essential in communication equipment, and its effect is safe and stable, reliable, uninterrupted
Ground powers for communication equipment.In the power supply system for communications, batteries are as the important composition for ensureing direct current emergency power supply system
Part, to ensureing that communication system normal operation is significant.
Communication storage battery group, usually it is composed in series by multiple cell batteries, such as 24 2V or 8 6V or 4
12V, at present, the use, maintenance, the method for detection to communication storage battery are a lot, but during the use of battery, due to storing
Battery capacity, usage time (time limit), the consistent sex differernce and communications facility of single battery or base station equipment load not
Equal reason so that the working condition of battery is different, and after civil power stops, powered off, its usage time is difficult to accurately
Estimation, difficulty is brought to maintenance, management work.
The content of the invention
The technical problem to be solved in the present invention is：A kind of online active equalization system of communication storage battery group is provided, to logical
Letter batteries realize online active equalization.
To solve the above problems, the technical solution adopted by the present invention is：The online active equalization system of communication storage battery group,
Including batteries, switching network, control system, electronic power load, charger, Schottky diode and city's electro-detection electricity
Road；Wherein, the controlled system control of switching network, detection circuit, city's power detection circuit are connected with control system；
Batteries include N number of cell of number consecutively, and N is the integer more than or equal to 2；Switching network includes first
Switch, second switch group, the 4th switches set, wherein, second switch group includes N+1 switch of number consecutively, the 4th switches set
4 switches including number consecutively；
One end of the switch of odd-numbered and one end of the switch of even-numbered in second switch group connect in 4th switches set
Connect, one end of the switch of even-numbered is connected with one end of the switch of odd-numbered in second switch group in the 4th switches set；Respectively
The other end that the positive pole of cell switchs with top n in second switch group respectively is connected, and the negative pole of batteries is opened with second
The other end connection of the N+1 switch in the group of pass；The output of the other end and charger of switch 1 and switch 2 in 4th switches set
Negative pole connects, and the output cathode of the other end and charger of switch 3 and switch 4 connects in the 4th switches set；
First switch is connected on the outside of batteries, and Schottky diode is in parallel with first switch.
Further, charger is powered using batteries.
Further, active equalization of battery is if desired carried out, then control system control second switch group, the 4th switches set will
Charger, which is parallel to, to be needed on balanced battery, by charger to needing balanced battery to charge.
Further, in addition to electronic power load and for detecting the detection circuits of batteries, detection circuit and electricity
Sub- power termination, charger connection；Switching network also includes the 3rd switches set, and the 3rd switches set include number consecutively 4 open
Close, switch 1 and 3 one end of switch are connected with one end of the switch of odd-numbered in second switch group in the 3rd switches set, and the 3rd opens
Guan Zuzhong switches 2 and 4 one end of switch are connected with one end of the switch of even-numbered in second switch group, are switched in the 3rd switches set
1 and switch 2 other end and be connected with the negative pole that electronic power load, 3 and the other end of switch 4 and electric are switched in the 3rd switches set
The positive pole connection of sub- power termination.
Further, discharge test is if desired carried out, then control system control second switch group, the 3rd switches set will need
The battery of test is connected in electronic power load, and discharge test is carried out to the battery that needs are tested by detecting circuit；If need
Discharge test is carried out, then the battery for needing to test is connected to by control system control control second switch group, the 4th switches set
On charger, the battery tested by detecting circuit needs carries out charging electrical testing.
Further, to realize to multiple batteries while carry out active equalization, the quantity of charger is M platforms, and M is integer, and 2
≤M≤N；Every corresponding second switch group of charger and the 4th switches set；
In each 4th switches set in one end second switch group corresponding with the 4th switches set of the switch of odd-numbered
One end of the switch of even-numbered connects, one end of the switch of even-numbered and the 4th switches set pair in each 4th switches set
One end connection of the switch of odd-numbered in the second switch group answered；The positive pole of each cell respectively with each second switch group
The other end connection of middle top n switch, the other end of the negative pole of batteries and the N+1 switch in each second switch group connect
Connect；The output negative pole of the other end charger corresponding with the 4th switches set of switch 1 and switch 2 connects in each 4th switches set
Connect, the other end of switch 3 and switch 4 is connected with the output cathode of the 4th switches set charger in each 4th switches set.
Further, the detection circuit be used to detecting voltage of the batteries in charge and discharge process, electric current, the time,
Temperature data.
Further, the detection circuit also includes electric quantity detecting circuit, and the electric quantity detecting circuit is used to detect battery
The magnitude of voltage of group；When electric quantity detecting circuit detects that the voltage of batteries is higher than preset value, control system control first is opened
Shut-off is opened, and communication power supply is no longer carried out floating charge to batteries, when detection electric circuit inspection monomer battery voltage is less than preset value
When, control system control first switch closure, communication power supply is carried out floating charge to batteries
The beneficial effects of the invention are as follows：Active equalization can be achieved in the present invention, can realize online discharge test again；When there is list
When body battery is less than default value, charger is parallel to this by control system control second switch group, the 4th switches set
On cell, by charger to needing balanced battery to charge, due to the cell batteries less than default value
Charging is added always, is not in that cell batteries occur after to one's heart's content condition, so as to extend cell batteries service life；When need
When carrying out discharge test, the battery for needing to test is connected to by control system control second switch group, the 3rd switches set
In electronic power load, discharge test is carried out to the battery isolated by detecting circuit；If desired charging measurement is carried out, is controlled
The battery for needing to test is connected on charger by second switch group processed, the 4th switches set, by detecting electricity of the circuit to test
Pond carries out charging measurement, obtains battery charging/discharging voltage at different temperatures, current data, and store in systems,
When running into civil power and stopping, power off, charger gets involved in behindhand battery and it is charged, and protects behindhand battery, extends battery totality work
Make the time, battery network management system is contrasted the accumulator parameter that detection circuit transmits in real time with historical data, by spy
The working time of fixed operation rule, exactly estimated battery.
Brief description of the drawings
Fig. 1 is the structural representation of the online active equalization system of the communication storage battery group of embodiment.
Numbered in figure：KA be switching network first switch, KB1-KBM be switching network in each second switch group, KC
For the 3rd switches set in switching network, KD1-KDM is each 4th switches set in switching network, and KB11-KB1N+1 is numbering 1
Second switch group in each switch, KBM1-KBMN+1 is each switch in numbering M second switch group, and KC1-KC4 is
Each switch in 3rd switches set respectively, KD11-KD14 are each switch in the 4th switch groups of numbering 1, KDM1-KDM4
For each switch in numbering M the 4th switch groups, D1-DN is respectively each battery, and T is Schottky diode.
Embodiment
Embodiment provides a kind of online active equalization system of communication storage battery group, as shown in figure 1, including batteries,
Switching network, control system, electronic power load, charger, Schottky diode T, transmission circuit, battery network management system,
Detect circuit, communication power supply and traffic load；Wherein, batteries are gone here and there by N number of monomer storage batteries D 1-DN of number consecutively
Connection composition, N >=2；Batteries are connected on communication power supply and traffic load, and switching network and detection circuit distinguish controlled circuit
Control, city's power detection circuit are connected with control system, and control system is connected with transmission circuit, transmission circuit and battery webmaster system
System connection, detection circuit are connected with electronic power load, charger.
The quantity of charger is M platforms, and M is integer, and 2≤M≤N, sets multiple chargers to realize to multiple electricity here
Pond carries out active equalization simultaneously, so as to solve the problems, such as sometime multiple cell equilibriums.
Switching network includes first switch, second switch group, the 3rd switches set, the 4th switches set, wherein, every charger
A corresponding second switch group and the 4th switches set, each second switch group include N+1 switch of number consecutively, each
4th switches set includes 4 switches of number consecutively；In each 4th switches set one end of the switch of odd-numbered (i.e. 1,3) with
Even-numbered in second switch group corresponding to 4th switches set (i.e. 2,4,6 ...) switch one end connection, the 4th switch
Odd-numbered in one end second switch group corresponding with the 4th switches set of the switch of even-numbered (i.e. 2,4) in group (i.e. 1,
3rd, 5 one end connection of switch ...)；The positive pole of each cell switchs another with top n in each second switch group respectively
One end is connected, and the negative pole of batteries is connected with the other end of the N+1 switch in each second switch group；Each 4th switch
The output negative pole connection of the other end charger corresponding with the 4th switches set of switch 1 and switch 2, each 4th switch in group
The other end of switch 3 and switch 4 is connected with the output cathode of the 4th switches set charger in group；1 is switched in 3rd switches set
(the arbitrary second switch group of this in Fig. 1 is KB1, actually can also be with any one second switch group with 3 one end of switch
Any one in KB1-KBM, is illustrated by taking KB1 as an example below) in odd-numbered switch one end connection, the 3rd switch
Switch 2 and 4 one end of switch are connected with one end of the switch of even-numbered in the arbitrary second switch group (i.e. KB1) in group, the
The other end of switch 1 and switch 2 is connected with the negative pole that electronic power loads in three switches sets, and 3 are switched in the 3rd switches set and is opened
The other end of pass 4 is connected with the positive pole that electronic power loads；First switch KA is connected on the outside of batteries, the pole of Schottky two
Pipe T is in parallel with first switch KA, and flowing to for Schottky diode T conducting direction and the foreign current of batteries is identical.
Control system is general control circuit；Electronic power load is the electronic load to match with accumulator parameter；
Detect voltage, electric current, time, the detection circuit of temperature of the circuit for detection accumulator cell charging and discharging；Transmission circuit is wired or nothing
Line communications circuit；Battery network management system is general computer and associated gateway.
In embodiment, the power supply for being charger power supply is batteries, and its input voltage is the output voltage of batteries.
During work, cell batteries or multiple batteries are grouped by battery network management system and control circuit first, gone forward side by side
Line number management；When meeting mains failure, once cell batteries once have monomer voltage to be set less than system in discharge process
Definite value, the switch in control circuit controlling switch network press control logic, make charger and be connected on cell batteries and to it
Charging, makes the voltage of cell batteries no longer decline or rise again.
In usually safeguarding, embodiment can also carry out discharge test to cell batteries.During discharge test, control system is pressed
Cell or the battery of packet are switched out from communication storage battery group by switching network one by one according to program set in advance
Come, by the cell being switched out or divided battery to electronic power load discharge, detect circuit test and record battery
The data messages such as discharge voltage, electric current, temperature, time, and upload to control system and battery is sent to by communication network
Network management system, battery network management system is by algorithm process, and the bad battery that on the one hand can be come out with rejection test in addition can be pre-
Count the discharge time of whole batteries.After the completion of test, by the switching of switching network, by DC charging motor and test is connected to
Cell batteries on, it is charged, the now power supply of charger be communication power supply output power supply.After being charged to default value,
Switching network is disconnected charger and charging cell batteries by logic.Cell batteries now enter battery pack floating charge shape
State.
Embodiment specific work process is as follows：
1st, when system is normally standby, control system controlling switch network only closes switch KA, and rest switch is all off,
Now, communication storage battery group can provide -48V or the 24V stand-by power supply of normal work for communication equipment, ensure communication equipment
Normal work；
2nd, active equalization is realized：
When batteries are under normal standby status, chance mains failure, system is by the battery in power supply state
Monomer battery voltage is organized to be checked, will be in parallel in turn by charger after detecting that monomer battery voltage is less than setting value
Onto the cell for needing to charge, electricity is supplemented to minimum voltage battery, so as to extend the batteries working time.
(1) active equalization is carried out to single battery, such as：The voltage of storage batteries D 1 is less than setting value, system control
KB11, KB12, KD11, KD14 are closed, and are made charger 1 and are connected in storage batteries D 1, storage batteries D 1 is filled using charger 1
Electricity, its charging current carry out Juan Chong by set definite value after the calculating of battery network management system or rushed, and are lifted or kept or delay drop
Minimum voltage value, keep minimum voltage value constant, further extend the overall work time of batteries.
, will by respective switch on KB1 and KD1 when system detectio is less than default value to second cell batteries
Charger is parallel on second cell for needing to charge, and it is charged, its charging current is based on battery network management system
Set definite value carries out Juan Chong or rushed after calculation, is lifted or kept or delay drop minimum voltage value, kept minimum voltage value constant, enter
One step extends the overall work time of batteries.Such as：The voltage of battery 4 is less than setting value, system control KB14,
KB15, KD12, KD13 are closed, and are made charger 1 and are connected in storage batteries D 4, using charger 1 to the boost charge of storage batteries D 4, its
Charging current carries out Juan Chong by set definite value after the calculating of battery network management system or rushed, and is lifted or kept or delays the minimum electricity of drop
Pressure value, keep minimum voltage value constant, further extend the overall work time of batteries.
By that analogy, after 3,4 ... N batteries are less than default value, respective switch in KB1, KD1 is opened successively, it is real
Now to charging less than default value cell batteries, it is allowed to maintain minimum voltage value.Until whole batteries reach and are
System setting value, turns off battery system.Realize that whole battery voltage is balanced in discharge process to decline.
(2) active equalization is carried out to multiple batteries.If the voltage of multiple cells is detected simultaneously by less than setting
Value, then control system needs the multiple chargers of controlling switch Web vector graphic respectively and is connected on multiple cells, such as battery
D1 and D3 is less than setting value, then system control KB11, KB12, KD11, KD14 closures, make charger 1 and be connected in storage batteries D 1,
Using charger 1 to the boost charge of storage batteries D 1, meanwhile, system control KB23, KB24, KD21, KD24 closure, make charger 2
And be connected in storage batteries D 3, using charger 2 to the boost charge of storage batteries D 3.
Be not in cell batteries after to one's heart's content because the cell batteries less than default value are added charging always
Condition occurs, so as to extend cell batteries service life.
When the 3rd, needing to test the cell batteries (or battery group) in communication storage battery group, pass through control system
Switch off according to different with battery network management system controls switching network, close combination, ensure that communication stores same
In the case of under battery normal standby status, cell batteries or battery packet charge and discharge are tested.
For example, it is desired to when the cell batteries of the communication storage battery group in Fig. 1 are tested, then KA will be switched in accompanying drawing and broken
Open, separate the communication power supply of batteries and communication equipment, due to the presence of Schottky tube T, it is ensured that in test unit
In cell process, batteries still can be that communication equipment is powered after mains failure, once system is examined by city's power detection circuit
Mains failure is measured, KA is closed, so as to realize that it is normally in communication equipment power supply state to seamlessly switch to battery.When to storing
When battery D1 carries out discharge test, KA is first disconnected, KB11, KB12 is closed, KC1, KC4, storage batteries D 1 is connected to electronic power
Discharged in load, detect circuit test and record the data such as the discharge voltage, electric current, time of storage batteries D 1, be sent to control
In system processed and remote control management system；After discharge test terminates, switch KB11, KB12 continue to remain closed, first by KC1,
KC4 disconnect, then will switch KD11, KD14 closure, by charger 1 by storage batteries D 1 it is fully charged after, will switch KB11, KB12,
KD11, KD14 are disconnected, then switch KA is closed, and are reconnected on DC charging power supply, are kept normal dc source to storing
Battery float charged state；Batteries are returned to stand-by power supply state.
It is same to switch KA disconnections successively, it is necessary to when testing storage batteries D 2, KB12, KB13 are closed, KC2, KC3, test is simultaneously
Record the data such as the discharge voltage, electric current, time of battery 2；After test terminates, switch KB12, KB13 continue to remain closed, and open
KC2, KC3 is closed to disconnect, meanwhile, switch KD12, KD13 closure, charger 1 charges to storage batteries D 2, after storage batteries D 2 is fully charged,
Switch KB12, KB13, KD12, KD13 are disconnected, then KA closures will be switched, reconnects on DC charging power supply, keeps just
Normal dc source is to battery floating charge state.
, all can be with switch combination by electric power storage similarly, it is necessary to test any single battery or battery combination in batteries
Pond individually disconnects, and completes into discharge test and charging.
By discharge test, remote control management system intactly records cell batteries one according to the data of collection
The basic parameters such as discharge voltage, electric current, temperature in discharge cycle, obtain the discharge curve of corresponding battery.When civil power occurs
When stopping, power off, by the way that actually detected each parameter value is compared with the data message that management system records, according to specific
Rule calculated, can working time of the predetermined battery under Various Seasonal (temperature environment) exactly.
4th, the present invention can also be improved batteries floating charge mode：In the past to electricity by the way of communication power supply is online all the time
Pond group floating charge, the self discharge of supplement itself；The present invention can be by detecting the voltage under electric circuit inspection batteries stand-by state
Value；When the voltage for detecting electric circuit inspection to batteries is higher than preset value (such as 110% of nominal voltage), control system
Control first switch to disconnect, communication power supply is no longer carried out floating charge to batteries, when detection electric circuit inspection to batteries
When voltage is less than preset value (such as 105% of nominal voltage), control system control first switch closure, make communication power supply pair
Batteries carry out floating charge.
The general principle of the present invention and main feature are the foregoing described, the description of specification simply illustrates the original of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
It all fall within the protetion scope of the claimed invention.
Claims (8)
1. the online active equalization system of communication storage battery group, it is characterised in that including batteries, switching network, control system
System, electronic power load, charger, Schottky diode and city's power detection circuit；Wherein, switching network, detection circuit by
Control system is controlled, and city's power detection circuit is connected with control system；
Batteries include N number of cell of number consecutively, and N is the integer more than or equal to 2；Switching network is opened including first
Pass, second switch group, the 4th switches set, wherein, second switch group includes N+1 switch of number consecutively, the 4th switches set bag
Include 4 switches of number consecutively；
One end of the switch of odd-numbered is connected with one end of the switch of even-numbered in second switch group in 4th switches set, the
One end of the switch of even-numbered is connected with one end of the switch of odd-numbered in second switch group in four switches sets；Each monomer electricity
The other end that the positive pole in pond switchs with top n in second switch group respectively is connected, in the negative pole and second switch group of batteries
The other end connection of the N+1 switch；The output negative pole of the other end and charger of switch 1 and switch 2 connects in 4th switches set
Connect, the output cathode connection of the other end and charger of 3 and switch 4 is switched in the 4th switches set；
First switch is connected on the outside of batteries, and Schottky diode is in parallel with first switch.
2. the online active equalization system of communication storage battery group according to claim 1, it is characterised in that charger uses
Batteries are powered.
3. the online active equalization system of communication storage battery group according to claim 1, it is characterised in that if desired carry out
Active equalization of battery, then charger is parallel to the battery for needing equilibrium by control system control second switch group, the 4th switches set
On, by charger to needing balanced battery to charge.
4. the online active equalization system of the communication storage battery group according to claim 1 or 2 or 3, it is characterised in that also wrap
Electronic power load and the detection circuit for detecting batteries are included, detection circuit is connected with electronic power load, charger；
Switching network also includes the 3rd switches set, and the 3rd switches set includes 4 switches of number consecutively, 1 He is switched in the 3rd switches set
One end that 3 one end are switched with the switch of odd-numbered in second switch group is connected, and 2 and 4 one end of switch are switched in the 3rd switches set
It is connected with one end of the switch of even-numbered in second switch group, the other end and electronics of 1 and switch 2 is switched in the 3rd switches set
The negative pole of power termination is connected, and the other end of switch 3 and switch 4 is connected with the positive pole that electronic power loads in the 3rd switches set.
5. the online active equalization system of communication storage battery group according to claim 4, it is characterised in that if desired carry out
Discharge test, then the battery for needing to test is connected to electronic power and born by control system control second switch group, the 3rd switches set
In load, discharge test is carried out to the battery that needs are tested by detecting circuit；If desired discharge test is carried out, then control system control
The battery for needing to test is connected on charger by system control second switch group, the 4th switches set, by detecting circuit to needs
The battery of test carries out charging measurement.
6. the online active equalization system of communication storage battery group according to claim 1, it is characterised in that the number of charger
Measure as M platforms, M is integer, and 2≤M≤N；Every corresponding second switch group of charger and the 4th switches set；
Even number in one end second switch group corresponding with the 4th switches set of the switch of odd-numbered in each 4th switches set
One end of the switch of numbering connects, and one end of the switch of even-numbered is corresponding with the 4th switches set in each 4th switches set
One end connection of the switch of odd-numbered in second switch group；The positive pole of each cell respectively with each second switch group before
The other end connection of N number of switch, the negative pole of batteries are connected with the other end of the N+1 switch in each second switch group；
The output negative pole connection of the other end charger corresponding with the 4th switches set of switch 1 and switch 2 in each 4th switches set,
The other end of switch 3 and switch 4 is connected with the output cathode of the 4th switches set charger in each 4th switches set.
7. the online active equalization system of communication storage battery group according to claim 1, it is characterised in that the detection electricity
Road is used to detect voltage, electric current, time, temperature data of the batteries in charge and discharge process.
8. the online active equalization system of communication storage battery group according to claim 7, it is characterised in that the detection electricity
Road is additionally operable to detect the magnitude of voltage under batteries stand-by state；When the voltage of detection electric circuit inspection to batteries is higher than default
During value, control system control first switch disconnects, and communication power supply is no longer carried out floating charge to batteries, when detection electric circuit inspection
When being less than preset value to the voltage of batteries, control system control first switch closure, communication power supply is set to enter batteries
Row floating charge.
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Cited By (3)
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| CN108233478A (en) * | 2018-02-02 | 2018-06-29 | 孙亮 | A kind of online charge-discharge system of communication storage battery |
| CN109088112A (en) * | 2018-02-07 | 2018-12-25 | 无锡瓴芯电子科技有限公司 | A kind of series-connected cell group modularization management system |
| CN109444614A (en) * | 2018-12-25 | 2019-03-08 | 广东电网有限责任公司 | A kind of non-on-board charger detection device |
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| CN108233478A (en) * | 2018-02-02 | 2018-06-29 | 孙亮 | A kind of online charge-discharge system of communication storage battery |
| CN109088112A (en) * | 2018-02-07 | 2018-12-25 | 无锡瓴芯电子科技有限公司 | A kind of series-connected cell group modularization management system |
| CN109444614A (en) * | 2018-12-25 | 2019-03-08 | 广东电网有限责任公司 | A kind of non-on-board charger detection device |
| CN109444614B (en) * | 2018-12-25 | 2024-06-04 | 广东电网有限责任公司 | Off-vehicle charger detection device |
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Effective date of registration: 20190611 Address after: 610072 Hongtongyuan B-3-6, Group I and Group II, Guanghua Village, Supo Township, Qingyang District, Chengdu City, Sichuan Province Applicant after: Chengdu Pioneer Technology Co., Ltd. Address before: 610072 No. 6, 3rd floor, 2nd building, 3rd unit, 8th Xieyang Road, Qingyang District, Chengdu City, Sichuan Province Applicant before: Sun Liang Applicant before: Li Yu Applicant before: Liao Yunqing Applicant before: Jiang Yichen |
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Application publication date: 20171124 |