CN205811577U - A kind of high-capacity lithium battery bag power-supply management system - Google Patents
A kind of high-capacity lithium battery bag power-supply management system Download PDFInfo
- Publication number
- CN205811577U CN205811577U CN201620538855.4U CN201620538855U CN205811577U CN 205811577 U CN205811577 U CN 205811577U CN 201620538855 U CN201620538855 U CN 201620538855U CN 205811577 U CN205811577 U CN 205811577U
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- China
- Prior art keywords
- battery bag
- power module
- lithium battery
- management system
- supply management
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
This utility model relates to a kind of high-capacity lithium battery bag power-supply management system, for managing the battery bag that lithium battery is constituted, described battery bag includes the power module of several parallel connections, described power module includes interconnective power module administrative unit and set of cells control unit, each described power module connects second charger, described high-capacity lithium battery bag power-supply management system includes the battery bag administrative unit being connected with described power module administrative unit, described battery bag administrative unit connects first charger, also include for filling/trickle charge pattern switching soon, realize the independent selection unit filled soon of described power module.Use high-capacity lithium battery bag power-supply management system described in the utility model, solve and fill differentiation requirement charger and charging controlled with two kinds of different charge modes of trickle charge soon, the operating current requirement of the single-pole double-throw switch (SPDT) that cutout equilibrium is used can be reduced under fast mold filling formula, and ensure the fast and reliable response of Charge Management.
Description
Technical field
This utility model belongs to lithium battery charge and discharge protective technical field, is specifically related to a kind of high-capacity lithium battery bag power supply
Management system.
Background technology
At present, dynamic lithium battery power supply is little with its volume possessed, light weight, energy density are big, memory-less effect, make
The main flow power source skill of electric automobile is become by life-span length, the advantage such as range is wide, running voltage is high and self-discharge rate is low
Art.Normally, dynamic lithium battery is used in series in groups, and between many groups, series connection forms power module again.Capacity when power module
When requiring bigger, it is contemplated that volume distributed median and reliability requirement, typically several power module parallel connections can be formed a great Rong
The battery bag of amount.
Owing to there is conforming problem between battery cell, cause the total electricity of the appearance of " wooden pail effect ", i.e. set of cells
Being limited by certain cell, a cell can only be full of by charging, and whole set of cells is discontented with so that battery power discharge is held
Amount diminishes.Equally, if having during battery power discharge monomer reach setting value need cut off discharge loop to avoid overdischarge, further
Reduce battery power discharge capacity.Use some charge and discharge balancing technology to attempt to improve this problem for these people, generally wrap
Include energy-dissipating and energy transfer two class, be essentially all based on shunting principle, do not turn off the performance loop of battery
For deviateing the cell of many number intervals or carrying out shunting Reduction of Students' Study Load under premise, or it is supplementary to carry out confluxing.Its existing problems
Powerful shunting, effect of confluxing be difficult to realize, and when cell close to full electricity, owe electricity time still need to continuous firing,
Cell degradation can be accelerated once Balance route measure coupling is the best；Simultaneously also cannot be simply with new battery replacement used batteries.
Utility model patent (application number 201620244331.4) proposes a kind of lithium battery source module management system, should
Device utilizes the method for cutout equilibrium, it is possible to realizes the overcharging of battery cell in the way of relatively simple, economical, cross and put exception
The protection of state, thus improve using capacity and extending the service life of set of cells of set of cells, and occur potential at battery
Can remove damaging battery from major loop during fault, allow remaining battery continue to provide electric power, improve battery system can
By property.But the single-pole double-throw switch (SPDT) that this patent uses is on the premise of considering cost and reliability, and it implements and is often difficult to
Reach the requirement that more than 200 amperes big electric currents work long hours.Therefore high-capacity lithium battery scheme is needed to take some
Individual power module parallel connection forms the method for a large-capacity battery pack.Meanwhile, in order to improve charge efficiency, 2-3C is (at 20-
Complete in 30 minutes charging) high-power technology of filling soon be day by day widely applied.The technology of filling needs to be equivalent to trickle charge condition soon
Under the charging current of several times more than, it is desirable to lithium power module possesses the Charge Management function of agility, and power module and charger
Between need directly to coordinate, if using the centralized charging modes of trickle charge technology will be for high-capacity lithium battery scheme
Charging is difficult to meet requirement on controlling.Accordingly, it is desirable on the basis of this patent for high-power fill soon under the conditions of multiple power supplys
Wired in parallel situation carries out the improvement of necessity.
Utility model content
In order to tackle the challenge filling technology soon to high-capacity lithium battery bag Charge Management, this utility model provides a kind of great Rong
Amount lithium battery bag power-supply management system, controls for charger and charging with two kinds of different charge modes of trickle charge in order to solve to fill soon
Differentiation requirement.Its principle is to utilize the power module by several set of cells are in series to carry out the most also under fast mold filling formula
Joining to reduce the operating current of the single-pole double-throw switch (SPDT) that cutout equilibrium is used, the most each power module individually connects charging mechanism
Become distributed charging to ensure the fast and reliable response of Charge Management；Under trickle charge pattern, each power module is in parallel, will fill simultaneously
Electric control function is handed to battery bag administrative unit and is responsible for.
For reaching object above, the technical solution adopted in the utility model is: a kind of high-capacity lithium battery bag power management
System, for managing the battery bag that lithium battery is constituted, described battery bag includes the power module of several parallel connections, described power supply
Module includes interconnective power module administrative unit and set of cells control unit, and each described power module connects one
Second charger；Described high-capacity lithium battery bag power-supply management system includes the battery being connected with described power module administrative unit
Bag administrative unit, described battery bag administrative unit connects first charger, also include for filling soon/switching of trickle charge pattern,
Realize the independent selection unit filled soon of described power module.
Further, described power module is in series by several set of cells, and described set of cells is by several cell piece strings
Connection is constituted, and described cell piece is made up of the battery cell of a battery cell or multiple parallel connection, and one in parallel of described cell piece turns
Changing switch, described permutator one switch arrays of composition in each described set of cells, described switch arrays connect described electricity
Pond group control unit.
Further, described power module administrative unit includes that connection has D.C. contactor, current sensor, limiting protector
A CPU, be arranged on the first CAN communication bus on a described CPU, the second CAN communication bus, the 3rd CAN communication total
Line, described first CAN communication bus connects described set of cells control unit；Described second CAN communication bus connects described battery
Bag administrative unit；Described 3rd CAN communication bus connects described second charger；Described second CAN, the 3rd CAN communication
Bus is arranged on a described CPU by photoisolator respectively.
Further, described set of cells control unit includes the be connected by photoisolator and the first CAN communication bus
Two CPU, connect the Voltage measure of described 2nd CPU, temperature sensor, also include current measurer.
Further, described power module is connected with described second charger by a communication interface.
Further, described selection unit includes being arranged on the parallel line of each described power module, for connecting/breaking
Open the charging option switch being connected in parallel of described power module.
Further, described charging option switch is manual/auto mechanical switch.
Further, described selection unit also includes the list being arranged on described second charger of described power module
Only charging inlet.
Further, described selection unit also includes the charged state Warning Mark being arranged in described power module.
Further, described battery bag also includes a charging inlet being arranged on described first charger, described electricity
Pond bag administrative unit is connected with described first charger by a communication interface.
The beneficial effects of the utility model have following some:
1. solve to fill differentiation requirement charger and charging controlled with two kinds of different charging modes of trickle charge soon；
2. can reduce the operating current requirement of the single-pole double-throw switch (SPDT) that cutout equilibrium is used under fast mold filling formula, and protect
The fast and reliable response of card Charge Management.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of high-capacity lithium battery bag power-supply management system described in this utility model detailed description of the invention；
Fig. 2 is the schematic diagram of power module described in this utility model detailed description of the invention；
Fig. 3 is the annexation signal of switch arrays described in this utility model detailed description of the invention and described cell piece
Figure；
In figure: 1-the first charger, 2-communication interface, 3-battery bag administrative unit, 4-power module, 5-charging selection is opened
Close, 6-charging inlet, 7-the second charger, 8-the oneth CPU, 9-photoisolator, 10-the 2nd CPU, 11-switch arrays, 12-
Set of cells, 13-cell piece, 14-the first CAN communication bus, 15-the second CAN communication bus, 16-the 3rd CAN communication bus, 17-
D.C. contactor, 18-current sensor, 19-limiting protector, 20-relay, 21-single-pole double throw mechanical switch, 22-relay
Device drive circuit.
Detailed description of the invention
Each cell piece in large-capacity battery pack involved by this utility model is parallel with a permutator, this
Individual permutator is a kind of single-pole double-throw switch (SPDT) (in the present embodiment, the relay of permutator uses electric motor type relay),
On the premise of considering cost and reliability, it tends to be difficult to reach the requirement that more than 200 amperes big electric currents work long hours.Therefore
For high-capacity lithium battery scheme need take first to go here and there after and method, the most first by several cell pieces series connection formed set of cells
Power module the most in series, then forms a large-capacity battery pack by several power module parallel connections.Each power module
Capacity is less, even if the fast mold filling formula under the conditions of 2-3C, its charging current increases several times also still in tolerance interval.Want
Play the advantage of cutout equilibrium, need power module to possess the Charge Management function of agility, and between power module and charger
Needing directly to coordinate, for high-capacity lithium battery bag scheme, the distributed charging modes of multiple charge independence machines is a need for
's.In this fashion, the charging process of each power module is separate, is each provided with charging inlet；Also include charging choosing
Select switch, i.e. internal each power module interconnective automatic/hand mechanical switch, can disconnect selecting distributed charging
Pattern.
With embodiment, this utility model is further described below in conjunction with the accompanying drawings.
A kind of high-capacity lithium battery bag power-supply management system (see Fig. 1), for managing the battery bag that lithium battery is constituted, battery
Bag includes the power module 4 of several parallel connections, is provided with power module administrative unit in power module 4, and each power module 4 is even
Connect second charger 7 (power module 4 is connected with the second charger 7) by a communication interface 2.(in FIG, power supply
The quantity of module 4 is two, is only signal.)
As it is shown in figure 1, high-capacity lithium battery bag power-supply management system includes battery bag administrative unit 3, it is single that reason assured by battery
Unit 3 is connected with the power module administrative unit in power module 4；Also include first be connected with battery bag administrative unit 3
Charger 1；Also include for filling soon/switching of trickle charge pattern, realize the independent selection unit filled soon of power module 4.
Also including a charging inlet 6 being arranged on the first charger 1 in battery bag, battery bag administrative unit 3 is passed through
One communication interface 2 is connected with the first charger 1.This communication interface 2 is the battery bag Communication Control end to the first charger 1
Mouthful, it is possible to control the first charger 1 by it and adjust the charge mode to battery bag and charging current.
As in figure 2 it is shown, power module 4 includes interconnective power module administrative unit and set of cells control unit.
Wherein, power module 4 is in series by several set of cells 12, and each set of cells 12 is in series by several cell pieces 13,
Each cell piece 13 is constituted (battery cell is not indicated in the drawings) by the battery cell of a battery cell or multiple parallel connection.Each
(see Fig. 3, permutator comprises a single-pole double throw mechanical switch 21, single-pole double throw to cell piece 13 permutator all in parallel
Mechanical switch 21 is made up of a movable contact and two stationary contacts, and single-pole double throw mechanical switch 21 includes " normally closed " and " conversion " two
The state of kind, the relay 20 of each permutator all connects set of cells control unit also by special relay drive circuit 22
Obtain the driving signal that set of cells control unit sends), permutator one switch arrays 11 of composition in each set of cells 12,
Switch arrays 11 connect set of cells control unit.
As in figure 2 it is shown, power module administrative unit includes that connection has D.C. contactor 17, current sensor 18, current limliting to protect
Protect a CPU8 of device 19, first CAN communication bus the 14, the second CAN communication bus the 15, the 3rd being arranged on a CPU8
CAN communication bus 16, the first CAN communication bus 14 connects set of cells control unit；Second CAN communication bus 15 connects battery bag
Administrative unit 3；3rd CAN communication bus 16 connects the second charger 7；Second CAN the 15, the 3rd CAN communication bus 16 points
Tong Guo not be arranged on a CPU8 by photoisolator 9.
As in figure 2 it is shown, what set of cells control unit included being connected with the first CAN communication bus 14 by photoisolator 9
2nd CPU10, connects the Voltage measure of the 2nd CPU10, temperature sensor, also includes current measurer (Voltage measure, temperature
Degree sensor, current measurer does not marks in the drawings), set of cells control unit can monitor the charge and discharge state of each cell piece 13
State parameter and send respective drive signal and control the permutator in switch arrays 11 and change state and make corresponding cell piece
13 removal charge and discharge loops.
As it is shown in figure 1, the selection unit of high-capacity lithium battery bag power-supply management system provided by the utility model includes
Charging option switch 5, charging option switch 5 is arranged on the parallel line of each power module 4, is used for connecting/disconnect each
Being connected in parallel between power module 4, also includes the single charging being arranged on the second charger 7 of power module 4
Interface 6, and the charged state Warning Mark (not indicating in figure) being arranged in power module 4.Wherein, charging option switch 5
It it is manual/auto mechanical switch.
When battery bag is filled by needs soon, charging option switch 5 is off, now each power module 4
Between be connected in parallel and be disconnected, form each power module 4 separate connection charger (the second charger 7) and by the most single
The distributed charge mode that only charging inlet 6 is charged, charging control function is by the power module pipe of each power module 4
Reason unit is responsible for, and reducing the operating current of single-pole double-throw switch (SPDT) 21 that cutout equilibrium is used, it is ensured that Charge Management quick
Reliable response.
When needs carry out trickle charge to battery bag, charging option switch 5 is in closure state, and each power module 4 is formed
Parallel connection, forms all power modules 4 by the first charger 1 of being connected with battery bag administrative unit 3 (and on the first charger 1
Charging inlet 6) the centralized charge mode that is charged, charging control function is responsible for by battery bag administrative unit 3, battery bag
First charger 1 is controlled by administrative unit 3, and coordinates each power module 4.Now formed with " set of cells-power module-
Battery bag " it is the three-level management framework of level.
For battery bag administrative unit 3, by following for existence several mode of operations:
The most distributed charging (is filled) soon: disconnect charging option switch 5, and each power module 4 individually connects and controls each
The second affiliated charger 7 carries out charge independence；The charged state of each power module 4 can be sent to battery bag administrative unit 3,
If charging terminates to be pointed out on " the charged state Warning Mark " of each power module 4.
The most centralized charging (trickle charge): Guan Bi charging option switch 5, each power module 4 is parallel with one another, battery assure
Reason unit 3 is uniformly controlled the first charger 1, and in charging process, charged state is issued battery and assured reason list by each power module 4
Unit 3.
The most centralized electric discharge: Guan Bi charging option switch 5, each power module 4 is parallel with one another.Each electricity in discharge process
Source module 4 is managed independently, and respective discharge condition is issued battery bag administrative unit 3；If certain power module 4 carries because of electricity
Before exhaust or unexpected abnormality state (the most overheated), this power module can disconnect its internal direct current catalyst 17 and stop putting
Electricity.
During discharge and recharge, the D.C. contactor 17 within each power module 4 Autonomous Control and limiting protector 19, at electricity
Current-limiting circuit can be started by limiting protector 19 or disconnect D.C. contactor 17 when flowing through big.
Device described in the utility model is not limited to the embodiment described in detailed description of the invention, those skilled in the art
Draw other embodiment according to the technical solution of the utility model, also belong to technological innovation scope of the present utility model.
Claims (10)
1. a high-capacity lithium battery bag power-supply management system, for managing the battery bag that lithium battery is constituted, in described battery bag
Including the power module (4) of several parallel connections, described power module (4) include interconnective power module administrative unit and
Set of cells control unit, each described power module (4) connects second charger (7), it is characterized in that: described high-capacity lithium
Battery bag power-supply management system includes battery bag administrative unit (3) being connected with described power module administrative unit, described battery
Bag administrative unit (3) connects first charger (1), also include for filling soon/switching of trickle charge pattern, realize described power supply mould
The independent selection unit filled soon of block (4).
2. high-capacity lithium battery bag power-supply management system as claimed in claim 1, is characterized in that: described power module (4) by
Several set of cells (12) are in series, and described set of cells (12) is in series by several cell pieces (13), described cell piece
(13) it is made up of the battery cell of a battery cell or multiple parallel connection, described cell piece (13) permutator in parallel, often
Described permutator one switch arrays (11) of composition in individual described set of cells (12), described switch arrays (11) connect described
Set of cells control unit.
3. high-capacity lithium battery bag power-supply management system as claimed in claim 2, is characterized in that: the management of described power module is single
Unit includes that connection has a CPU (8) of D.C. contactor (17), current sensor (18), limiting protector (19), is arranged on institute
State the first CAN communication bus (14) on a CPU (8), the second CAN communication bus (15), the 3rd CAN communication bus (16),
Described first CAN communication bus (14) connects described set of cells control unit；Described second CAN communication bus (15) connects described
Battery bag administrative unit (3)；Described 3rd CAN communication bus (16) connects described second charger (7)；Described 2nd CAN is total
Line (15), the 3rd CAN communication bus (16) are arranged on a described CPU (8) by photoisolator (9) respectively.
4. high-capacity lithium battery bag power-supply management system as claimed in claim 3, is characterized in that: described set of cells control unit
Including the 2nd CPU (10) being connected with the first CAN communication bus (14) by photoisolator (9), connect described 2nd CPU
(10) Voltage measure, temperature sensor, also include current measurer.
5. high-capacity lithium battery bag power-supply management system as claimed in claim 1, is characterized in that: described power module (4) leads to
Cross a communication interface (2) to be connected with described second charger (7).
6. high-capacity lithium battery bag power-supply management system as claimed in claim 1, is characterized in that: described selection unit includes setting
Put on the parallel line of each described power module (4), be used for connecting/disconnect being connected in parallel of described power module (4)
Charging option switch (5).
7. high-capacity lithium battery bag power-supply management system as claimed in claim 6, is characterized in that: described charging option switch
(5) it is manual/auto mechanical switch.
8. high-capacity lithium battery bag power-supply management system as claimed in claim 1, is characterized in that: described selection unit also includes
The single charging inlet (6) being arranged on described second charger (7) of described power module (4).
9. high-capacity lithium battery bag power-supply management system as claimed in claim 1, is characterized in that: described selection unit also includes
It is arranged on the charged state Warning Mark in described power module (4).
10. high-capacity lithium battery bag power-supply management system as claimed in claim 1, is characterized in that: also wrap in described battery bag
Including a charging inlet (6) being arranged on described first charger (1), described battery bag administrative unit (3) is led to by one
Communication interface (2) is connected with described first charger (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620538855.4U CN205811577U (en) | 2016-06-06 | 2016-06-06 | A kind of high-capacity lithium battery bag power-supply management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620538855.4U CN205811577U (en) | 2016-06-06 | 2016-06-06 | A kind of high-capacity lithium battery bag power-supply management system |
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| CN205811577U true CN205811577U (en) | 2016-12-14 |
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| CN201620538855.4U Expired - Fee Related CN205811577U (en) | 2016-06-06 | 2016-06-06 | A kind of high-capacity lithium battery bag power-supply management system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107706997A (en) * | 2017-11-09 | 2018-02-16 | 中山大学 | Intelligent equalization controller switching equipment, intelligent equalization distribution system and compound energy system |
| CN108305398A (en) * | 2017-01-11 | 2018-07-20 | 宁波轩悦行电动汽车服务有限公司 | Electric vehicle is intelligently returned the car system |
| CN108305399A (en) * | 2017-01-11 | 2018-07-20 | 宁波轩悦行电动汽车服务有限公司 | Electric vehicle is returned the car system |
| CN109273783A (en) * | 2018-09-11 | 2019-01-25 | 众声物联（天津）科技有限公司 | Lithium battery replaces lead-acid battery intelligence BMS framework and application method |
| CN109471038A (en) * | 2018-11-12 | 2019-03-15 | 芜湖奇达动力电池系统有限公司 | Electric automobile power battery packet performance automatic test system and test method |
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- 2016-06-06 CN CN201620538855.4U patent/CN205811577U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108305398A (en) * | 2017-01-11 | 2018-07-20 | 宁波轩悦行电动汽车服务有限公司 | Electric vehicle is intelligently returned the car system |
| CN108305399A (en) * | 2017-01-11 | 2018-07-20 | 宁波轩悦行电动汽车服务有限公司 | Electric vehicle is returned the car system |
| CN108305399B (en) * | 2017-01-11 | 2021-05-14 | 宁波轩悦行电动汽车服务有限公司 | Electric automobile returns car system |
| CN108305398B (en) * | 2017-01-11 | 2021-05-14 | 宁波轩悦行电动汽车服务有限公司 | Intelligent returning system for electric automobile |
| CN107706997A (en) * | 2017-11-09 | 2018-02-16 | 中山大学 | Intelligent equalization controller switching equipment, intelligent equalization distribution system and compound energy system |
| CN109273783A (en) * | 2018-09-11 | 2019-01-25 | 众声物联（天津）科技有限公司 | Lithium battery replaces lead-acid battery intelligence BMS framework and application method |
| CN109273783B (en) * | 2018-09-11 | 2024-01-02 | 众声物联（天津）科技有限公司 | Intelligent BMS (battery management system) framework for replacing lead-acid battery with lithium battery and using method |
| CN109471038A (en) * | 2018-11-12 | 2019-03-15 | 芜湖奇达动力电池系统有限公司 | Electric automobile power battery packet performance automatic test system and test method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20170606 |
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| CF01 | Termination of patent right due to non-payment of annual fee |