CN205882795U - Lithium ion battery organizes automatic charge -discharge balancing equipment - Google Patents
Lithium ion battery organizes automatic charge -discharge balancing equipment Download PDFInfo
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- CN205882795U CN205882795U CN201620867692.4U CN201620867692U CN205882795U CN 205882795 U CN205882795 U CN 205882795U CN 201620867692 U CN201620867692 U CN 201620867692U CN 205882795 U CN205882795 U CN 205882795U
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- discharge
- charge
- charging
- ion batteries
- discharge balancing
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- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 59
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 55
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 39
- 238000012545 processing Methods 0.000 claims abstract description 4
- 238000007599 discharging Methods 0.000 claims description 23
- 238000005070 sampling Methods 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000052 comparative effect Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a lithium ion battery organizes automatic charge -discharge balancing equipment, this lithium ion battery organizes automatic charge -discharge balancing equipment include the balanced control interface of the charge -discharge of being connected with lithium ion battery inter block each battery cell the two poles of the earth, with the battery pack management device of every current voltage information of battery cell in the real -time collection group battery of lithium ion battery group link, lithium ion battery organizes automatic charge -discharge balancing equipment still includes charge controllers, charge controllers includes: the balanced the control unit of a central processing unit, communication unit, touch display screen and charge -discharge, this equipment can be according to the preset parameters, charge or discharge to the same state of setting for each battery cell is automatic in the lithium cell group, and this automation degree is high, improved work efficiency, the cost is reduced by a wide margin, and moreover accuracy of equalization is high, the uniformity is good, still have easy operation, small, advantage such as degree of automation is high, the security is good.
Description
Technical field
This utility model relates to New-energy electric vehicle dynamical lithium-ion battery packs balancing technique field, particularly relates to one
Plant Li-ion batteries piles auto charge and discharge balancing equipment.
Background technology
At present, most of electric automobile enterprises and research institution all use Li-ion batteries piles as its electrokinetic cell, and
The Li-ion batteries piles that powerful electric automobile is used is made up of more piece monomer lithium ion battery connection in series-parallel, to obtain relatively
High output voltage.But, both Li-ion batteries piles and monomer lithium ion battery have the biggest difference on using,
In set of cells, each monomer lithium ion battery certainly exists individual variation in the manufacturing, and in use degree of aging is the most different,
Along with increase and the accumulation of time of discharge and recharge number of times, this species diversity will even be expanded by accumulating, cause whole set of cells
Performance is had a greatly reduced quality or battery life serious curtailment.
Existing charging modes typically uses and charges lithium battery group entirety, this charging modes simple in construction, energy simultaneously
Simplify current sampling circuit, it is simple to lithium battery group SOC is estimated, but shortcoming is the most obvious.This charging modes is it cannot be guaranteed that institute
Having cell to be all completely filled with electricity, this has resulted in the difference on lithium battery group cell capacity, thus causes whole electricity
The performance of pond group is had a greatly reduced quality.The employing many to this set of cells of current most of producer supplements the side of charge and discharge balancing manually
In formula, i.e. set of cells certain cell voltage too low or too high time, by manually charger or electric discharge device individually being received this battery
Positive and negative end, for battery charge or discharge, after treating these battery charge or discharge, is more only needed by manually changing to next
Want the battery of charge or discharge.This mode not only inefficiency, safety are the highest, and operator's misoperation easily causes short
Road, and after charge or discharge, lithium battery group concordance is bad, and portfolio effect is poor.
Utility model content
Utility model to solve the technical problem that: for deficiencies of the prior art, it is provided that a kind of lithium ion
Set of cells auto charge and discharge balancing equipment, this equipment can be according to preset parameter, by each cell in lithium battery group certainly
Dynamic charge or discharge, to the equal state set, are more manually that the mode not only automaticity of battery pack balancing is high, significantly carry
High work efficiency, reduce cost, and the accuracy of equalization high, concordance is good, thus improves the overall performance of set of cells, prolong
In the service life of long set of cells, this equipment also has the advantages such as simple to operate, volume is little, automaticity is high, safety is good.
The technical scheme that solution technical problem is taked: a kind of Li-ion batteries piles auto charge and discharge balancing equipment, including
Each with in Li-ion batteries piles the charge and discharge balancing that cell the two poles of the earth are connected controls interface, is connected with Li-ion batteries piles
Real-time Collection set of cells in the management device of battery pack of every cell current voltage information, described Li-ion batteries piles from
Dynamic charge and discharge balancing equipment also includes that charging-discharging controller, described charging-discharging controller include: CPU, communication list
Unit, touch display screen and charge and discharge balancing control unit,
Described CPU, by the lithium battery group of communication unit reception management device of battery pack transmission each
The current voltage value of cell, receives by the preset parameter touching display screen input by communication unit, by lithium ion battery
The magnitude of voltage that in group, every cell is current compares with the preset parameter values set, according to comparative result to discharge and recharge
The output of Balance route unit is charged, is discharged or terminate equalization instruction signal；
Described touch display screen, by communication unit to CPU input preset parameter and work order, display
System current operating state and parameter；
Charge and discharge balancing control unit, receives the charging from CPU, discharges or terminate equalization instruction signal,
And by charge and discharge balancing control interface according to corresponding command signal corresponding cell is performed charging, discharges or terminate
Equilibrium.
As improvement of the present utility model: described charge and discharge balancing control unit is by relay control switching circuit, direct current
Charging circuit and discharge circuit are constituted, and relay control switching circuit receives the charge/discharge instruction that CPU sends
Signal, and drive charging control switch or discharge control switch according to corresponding command signal, corresponding cell is switched
To DC charging circuit, discharge circuit or end equilibrium state.
As further improvement of the utility model: control to set between interface and charge-discharge control unit at charge and discharge balancing
Having current sampling unit, the sampled value of each cell euqalizing current in lithium battery group is passed through relay by current sampling unit
Device control switching circuit is transferred to CPU, and the protective current higher limit of sampled value with setting is entered by CPU
Row compares, when euqalizing current value is more than the protective current value set, by CPU to relay control switching circuit
Output instruction signal, disconnects this battery with Balance route unit.
Further, described DC charging circuit be by AC/DC Switching Power Supply, power diode, charging control switch with
The circuit that cell is in series.
Further, described discharge circuit is in series with cell by high-power resistance, discharge control switch
Circuit.
Further, described communication unit includes 485 communication modules, CAN communication module and corresponding communication interface, central authorities
485 communication module communications are used, between CPU and management device of battery pack between processing unit and touch display screen
Use CAN communication module communication.
As preferred plan of the present utility model: Li-ion batteries piles auto charge and discharge balancing equipment also includes a receiving
The charging-discharging controller casing of charging-discharging controller, is provided with communication interface, charge and discharge balancing control on charging-discharging controller casing
Interface processed, cooling fan, on and off switch.
Beneficial effect: Li-ion batteries piles auto charge and discharge balancing equipment of the present utility model, owing to have employed described lithium
Ion battery group auto charge and discharge balancing equipment includes that charge and discharge balancing controls interface, management device of battery pack, charge and discharge control
Device, described charging-discharging controller includes: CPU, communication unit, touch display screen and charge and discharge balancing control unit
Technical scheme, when set of cells is carried out charge and discharge balancing, CPU work as according to preset parameter and cell
Front magnitude of voltage compares, and controls charge and discharge balancing control unit according to comparative result, corresponding battery is performed charging, electric discharge
Or terminate equilibrium, therefore, Li-ion batteries piles auto charge and discharge balancing equipment of the present utility model is more manually battery pack balancing
Mode not only automaticity high, work efficiency be greatly improved, reduce cost, and the accuracy of equalization is high, concordance
Good, thus improve the overall performance of set of cells, extend the service life of set of cells, this equipment also have simple to operate, volume is little,
The advantages such as automaticity is high, safety is good.Owing to have employed described charge and discharge balancing control unit by relay switching control
The technical characteristic that circuit, DC charging circuit and discharge circuit are constituted, makes Li-ion batteries piles automatic inflatable of the present utility model
Electrical equalization equipment, structure is simpler, run more stable reliably, manufacturing cost is lower.Owing to have employed in charge and discharge balancing control
The technical characteristic of current sampling unit it is provided with, when the euqalizing current value of a certain cell between interface and charge-discharge control unit
During more than the protective current value set, in time this battery is disconnected with Balance route unit, prevent damage equipment or cause danger
Danger, further increases safety and the self-protection ability of equipment, makes battery balanced operation safer.Described owing to have employed
DC charging circuit is the circuit in series with cell by AC/DC Switching Power Supply, power diode, charging control switch
Technical characteristic, the charging making cell is more reliable, speed faster, control more convenient.Owing to have employed described discharge circuit
For the technical characteristic by high-power resistance, the discharge control switch circuit in series with cell, make putting of cell
Electricity is more easily controlled.Include that 485 communication modules, CAN module communication and corresponding communication connect owing to have employed described communication unit
Mouthful, use 485 communication module communications, CPU to fill with battery set management between CPU and touch display screen
Use the technical characteristic of CAN communication module communication between putting, not only facilitate the connection of each unit, and make the letter between each unit
Breath transmission speed is fast, and capacity of resisting disturbance is strong, it is achieved that equipment and management device of battery pack carry out communication in real time, it is ensured that to each
Voltage and the charging and discharging currents of cell monitor in real time, and show on a display screen.Owing to have employed Li-ion batteries piles certainly
Dynamic charge and discharge balancing equipment also includes a charging-discharging controller casing accommodating charging-discharging controller, at charging-discharging controller case
Body is provided with communication interface, charge and discharge balancing controls interface, cooling fan, and the technical characteristic of on and off switch optimizes further
The structure of equipment, makes device structure more compact, more convenient operation, and heat dispersion is more preferable, works more stable.
Li-ion batteries piles auto charge and discharge balancing equipment of the present utility model can be not only used for New-energy electric vehicle user
Regular maintenance battery pack balancing, can be used for again New-energy electric vehicle producer batch and equalizes lithium battery group, be more suitable for
Lithium battery cascade utilization field, the lithium battery group charge and discharge balancing again eliminating the fields such as New-energy electric vehicle, by these
Lithium battery group is applied to electrical network energy storage or other fields relatively low to battery performance requirements.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is Li-ion batteries piles auto charge and discharge balancing equipment schematic block circuit diagram of the present utility model；
Fig. 2 is charge and discharge balancing control principle in Li-ion batteries piles auto charge and discharge balancing equipment of the present utility model
Figure；
Fig. 3 is that in Li-ion batteries piles auto charge and discharge balancing equipment of the present utility model, single battery charging state controls
Schematic diagram；
Fig. 4 is that in Li-ion batteries piles auto charge and discharge balancing equipment of the present utility model, single battery discharge status controls
Schematic diagram；
Fig. 5 is that in Li-ion batteries piles auto charge and discharge balancing equipment of the present utility model, single battery terminates equilibrium state
Control schematic diagram；
Fig. 6 is charging-discharging controller body structure in Li-ion batteries piles auto charge and discharge balancing equipment of the present utility model
Schematic diagram；
Fig. 7 is that Li-ion batteries piles auto charge and discharge balancing equipment of the present utility model uses connection instance graph；
Fig. 8 is the operation principle flow chart of Li-ion batteries piles auto charge and discharge balancing equipment of the present utility model.
Detailed description of the invention
By further illustrating the technological means and effect thereof that this utility model taked, below in conjunction with of the present utility model
Preferred embodiment and accompanying drawing thereof are described in detail.
As it is shown in figure 1, Li-ion batteries piles auto charge and discharge balancing equipment of the present utility model includes:
The charge and discharge balancing control interface 2 being connected with each cell the two poles of the earth in Li-ion batteries piles 1；
The set of cells of every cell current voltage information in the Real-time Collection set of cells being connected with Li-ion batteries piles
Managing device 3；
Charging-discharging controller 4, described charging-discharging controller includes: CPU 41, communication unit 44, touch display
Screen 43, current sampling unit 45 and charge and discharge balancing control unit 42.
Described communication unit includes 485 communication modules, CAN communication module and corresponding communication interface.
Described charge and discharge balancing control unit includes relay control switching circuit 421, DC charging circuit 422 and electric discharge
Circuit 423.
Communication unit, relay control switching circuit are connected with CPU respectively；Touch display screen, set of cells pipe
Reason device is connected with communication unit respectively by communication interface；Current sampling unit is connected with relay control switching circuit, lithium
Set of cells controls interface by charge and discharge balancing and is connected with DC charging circuit or discharge circuit with current sampling unit.
Wherein: CPU is by the lithium battery group of communication unit reception management device of battery pack transmission each
The current voltage value of battery.Meanwhile, after CPU receives by touching the default value that display screen inputs, by lithium battery group
In the magnitude of voltage of every battery compare with the parameter value set successively, if the equalizing voltage value set is worked as more than cell
Front magnitude of voltage, central processing unit controls relay control switching circuit, make this cell connect with DC charging circuit, with
Discharge circuit disconnects, and is charged this battery；If the equalizing voltage value set processes less than battery current voltage value, central authorities
Unit controls relay control switching circuit, makes this cell connect with discharge circuit, disconnects with charging circuit, to this battery
Discharge.
Described touch display screen, by communication unit to CPU input preset parameter and work order, and shows
Show system current operating state and parameter；
Charge and discharge balancing control unit, receives the charging from CPU, discharges or terminate equalization instruction signal,
And by charge and discharge balancing control interface according to corresponding command signal corresponding cell is performed charging, discharges or terminate
Equilibrium.
Current sampling unit can be after charge and discharge balancing starts, by the sampling of each battery balanced electric current in lithium battery group
Value is transferred to CPU by relay control switching circuit, and CPU obtains electric current by A/D conversion and adopts
After sample value, sampled value is compared with the protective current higher limit of setting, if euqalizing current value is more than the protective current set
Value, CPU can control relay control switching circuit, by this battery and corresponding charging circuit and discharge circuit
Disconnect, stop the equilibrium of this battery, and display alarm information on the equilibrium state display interface touching display screen.
Below as a example by the set of cells being composed in series by eight monomer lithium ion batteries, to lithium-ion electric of the present utility model
Pond group auto charge and discharge balancing equipment is described in further detail.
As in figure 2 it is shown, eight lithium batteries of BT1-BT8 are composed in series a lithium battery group, P1 is that charge and discharge balancing controls to connect
Mouthful, the positive pole of BT1-BT8 is connected with the 1-8 foot of P1, and the negative pole of BT1 is connected with 9 feet of P1.
K1-K8 is the relay controlling charge balancing, and corresponding single-pole double-throw switch (SPDT) is charging control switch, K1's
4 feet are connected with 8 feet of P1, and 4 feet of K2 are connected with 7 feet of P1, and 4 feet of K3 are connected with 6 feet of P1, the 5 foot phases of 4 feet of K4 and P1
Even, 4 feet of K5 are connected with 4 feet of P1, and 4 feet of K6 are connected with 3 feet of P1, and 4 feet of K7 are connected with 2 feet of P1,4 feet of K8 and P1
1 foot be connected.
K9-K16 is the relay controlling equalization discharge, and corresponding single-pole double-throw switch (SPDT) is discharge control switch, K9
4 feet be connected with 8 feet of P1,4 feet of K10 are connected with 7 feet of P1, and 4 feet of K11 are connected with 6 feet of P1,4 feet of K12 and P1's
5 feet are connected, and 4 feet of K13 are connected with 4 feet of P1, and 4 feet of K14 are connected with 3 feet of P1, and 4 feet of K15 are connected with 2 feet of P1, K16
4 feet be connected with 1 foot of P1.
Need special instruction, above lithium battery group and the connected mode of relay, it is possible to ensure in lithium battery group each
The charge and discharge balancing of battery is all completely self-contained, and the equilibrium of each battery can't be by other battery balanced states
Impact.
POWER1-POWER8 is AC/DC Switching Power Supply, and D1-D8 is the power two preventing AC/DC switch power supply current reverse
Pole is managed, and POWER1-POWER8 is powered by AC 220 V, and the direct current output cathode of POWER1 passes through diode D1 and relay
5 feet of K1 are connected, and the direct current output negative pole of POWER1 is connected with 9 feet of P1, and the direct current output cathode of POWER2 passes through diode
D2 is connected with 5 feet of relay K 2, and the direct current output negative pole of POWER2 is connected with 8 feet of P1, the direct current output cathode of POWER3
Being connected with 5 feet of relay K 3 by diode D3, the direct current output negative pole of POWER3 is connected with 7 feet of P1, and POWER4's is straight
Stream output cathode is connected with 5 feet of relay K 4 by diode D4, and the direct current output negative pole of POWER4 is connected with 6 feet of P1,
The direct current output cathode of POWER5 is connected with 5 feet of relay K 5 by diode D5, the direct current output negative pole of POWER5 and P1
5 feet be connected, the direct current output cathode of POWER6 is connected with 5 feet of relay K 6 by diode D6, and the direct current of POWER6 is defeated
Going out negative pole to be connected with 4 feet of P1, the direct current output cathode of POWER7 is connected with 5 feet of relay K 7 by diode D7,
The direct current output negative pole of POWER7 is connected with 3 feet of P1, and the direct current output cathode of POWER8 is by diode D8 and relay K 8
5 feet be connected, the direct current output negative pole of POWER8 is connected with 2 feet of P1.
R1-R8 is high-power resistance, and 5 feet of relay K 9 are connected by 9 feet of R1 with P1, and 5 feet of relay K 10 pass through
8 feet of R2 with P1 are connected, and 5 feet of relay K 11 are connected by 7 feet of R3 with P1, and 5 feet of relay K 12 pass through the 6 of R4 Yu P1
Foot is connected, and 5 feet of relay K 13 are connected by 5 feet of R5 with P1, and 5 feet of relay K 14 are connected by 4 feet of R6 with P1, continue
5 feet of electrical equipment K15 are connected by 3 feet of R7 with P1, and 5 feet of relay K 16 are connected by 2 feet of R8 with P1.
The 1 of relay K 1-K16,2 foot control ends are connected with CPU.
Needs illustrate, and CPU can control some group relay control switching circuits, and each continues
The set of cells that electrical equipment control switching circuit can control to be made up of 1-8 cell carries out charge and discharge balancing.
Below as a example by the wherein battery in lithium battery group, to Li-ion batteries piles automatic inflatable of the present utility model
In electrical equalization equipment, the work process of charge and discharge balancing control unit is described in detail.
As it is shown on figure 3, when being charged equilibrium, central control unit controls relay K 8, K16, makes the charging control of K8
System switch normally opened contact 4,5 Guan Bi, the discharge control switch normally opened contact 4,5 of K16 remains open, at this moment in the sense of current such as figure
Charged state is illustrated, lithium battery is charged by Switching Power Supply；
As shown in Figure 4, when carrying out equalization discharge, central control unit controls relay K 8, K16, makes the charging control of K8
System switch normally opened contact 4,5 remains open, and discharge control switch normally opened contact 4,5 Guan Bi of K16, at this moment in the sense of current such as figure
Discharge condition is illustrated, lithium battery is discharged by high-power resistance.
As it is shown in figure 5, at the end of charge and discharge balancing, central control unit controls relay K 8, K16, makes the charging of K8
Controlling switch normally opened contact 4,5 to remain open, the normally opened contact 4,5 of K16 discharge control switch remains open.
CPU is according to being the positive integer of 1-16 from 1-N(wherein N) order successively to each lithium battery group
Each battery carry out aforesaid operations, so make selectively lithium battery group start charge and discharge balancing.
After charge and discharge balancing starts, CPU is in real time and management device of battery pack carries out communication, if communication
Occurring abnormal, after exceeding certain time, touching display screen can be in main interface display abnormal alarm information, CPU meeting
Control relay control switching circuit, disconnect all of charging circuit and discharge circuit, stop charge and discharge balancing.
During charge and discharge balancing, CPU is in real time and management device of battery pack carries out communication, obtains in real time
The magnitude of voltage of cell, and compare with the parameter set.If the actual voltage value of cell has reached setting
Equalizing voltage value, CPU can control corresponding relay control switching circuit, disconnects corresponding charging circuit and puts
Electricity circuit, and demonstrate, at the equilibrium state display interface touched on display screen, the state that equilibrium is complete.
During charge and discharge balancing, if the actual voltage value of cell has exceeded the protection voltage bound set
Value, CPU can control corresponding relay control switching circuit, by this cell and corresponding charging circuit or
Discharge circuit disconnects, and display alarm information on the main interface touching display screen.
Needing explanation, after some lithium battery group completes charge and discharge balancing, can more renew does not equalizes electricity at once
Pond group equalizes, and other set of cells equalized will not be had any impact by this.
Needing explanation, during charge and discharge balancing, AC/DC Switching Power Supply and high-power resistance can produce higher thermal
Amount, heat can fast and effeciently be discharged by radiator fan, it is ensured that equipment stable operation.
As shown in Figure 6, Li-ion batteries piles auto charge and discharge balancing equipment also includes that accommodates a charging-discharging controller
Charging-discharging controller casing 46, is provided with communication interface 441, charge and discharge balancing controls interface 2, cold on charging-discharging controller casing
But fan 47, on and off switch 48,220V commercial power interface 49.
Fig. 7 shows the connection side of Li-ion batteries piles auto charge and discharge balancing equipment of the present utility model and set of cells
Method, the present embodiment carries out automatically filling Li-ion batteries piles of the present utility model as a example by charge and discharge balancing by two set of cells simultaneously
Equalization discharge equipment illustrates with the method for attachment of set of cells, and two set of cells are by cable series connection, and in figure, 11 is set of cells
Total positive pole, 12 is total negative pole of set of cells, charging-discharging controller by CAN communication bus 442 and management device of battery pack and
Touch display screen connects, and charge and discharge balancing is controlled interface and is connected with battery pack interface 13 by cable 21, management device of battery pack
Being connected with set of cells, charging-discharging controller connects 220V civil power 5.
As shown in Figure 8, the workflow of Li-ion batteries piles auto charge and discharge balancing equipment of the present utility model is as follows: first
First management device of battery pack is coupled together with lithium battery group to be equalized, then by auto charge and discharge balancing equipment and battery set management
The communication of device couples together.Start management device of battery pack, start auto charge and discharge balancing equipment, if communication abnormality, examine
Look into abnormal conditions, if communication is normal, then connect auto charge and discharge balancing equipment and lithium battery group to be equalized.Shown by touch
Screen entrance parameter arranges interface and sets balance parameters, returns to main interface, selects to need the lithium battery group # of equilibrium, thus opens
Dynamic lithium battery group automatic inflatable electrical equalization.Now charge and discharge balancing process is carried out automatically, if occurring abnormal feelings in the process
Condition, auto charge and discharge balancing equipment can stop equalization operation immediately, and send abnormal alarm information, and personnel to be operated get rid of exception
After situation, charge and discharge balancing can be restarted.When lithium battery group reaches the equilibrium state set, automatic inflatable electrical equalization
Equipment can stop equilibrium, and sends the information that equilibrium is complete.If the newest lithium battery group to be equalized needs to carry out all
Weighing apparatus, operator can change the lithium battery group that equilibrium is complete, start that new lithium battery group to be equalized is carried out auto charge and discharge equal
Weighing apparatus.When all of lithium battery group to be equalized equalizes complete the most, then operate.
This utility model passes through microcontroller chip controls, and equipment can be automatically obtained each cell of lithium battery group only
Vertical discharge and recharge, has abnormal alarm and defencive function, thus avoids the danger that manual operation brings, and can guarantee that each is single
Body battery is finally reached on all four state, is effectively increased the performance of set of cells, extends the service life of set of cells.With
Time this equipment can work by multimachine simultaneously, many group lithium battery groups are charged or equalization discharge simultaneously, substantially increase equalization efficiency.
As described above, this Li-ion batteries piles auto charge and discharge balancing equipment is simple to operate, and automaticity is higher, energy
Operator work efficiency is greatly improved, and avoids the danger that manual operation brings.
Claims (7)
1. a Li-ion batteries piles auto charge and discharge balancing equipment, including each the cell two with in Li-ion batteries piles
The charge and discharge balancing that pole connects controls interface, and in the Real-time Collection set of cells being connected with Li-ion batteries piles, every cell is worked as
The management device of battery pack of front information of voltage, is characterized in that: described Li-ion batteries piles auto charge and discharge balancing equipment also includes
Charging-discharging controller, described charging-discharging controller includes: CPU, communication unit, touch display screen and discharge and recharge are equal
Weighing apparatus control unit,
Described CPU, receives each monomer in the lithium battery group of management device of battery pack transmission by communication unit
The current voltage value of battery, receives by the preset parameter touching display screen input by communication unit, by Li-ion batteries piles
The current magnitude of voltage of every cell compares with the preset parameter values set, according to comparative result to charge and discharge balancing
Control unit output is charged, is discharged or terminate equalization instruction signal；
Described touch display screen, by communication unit to CPU input preset parameter and work order, display system
Current operating state and parameter；
Charge and discharge balancing control unit, receives the charging from CPU, discharges or terminate equalization instruction signal, and root
Control interface according to corresponding command signal by charge and discharge balancing corresponding cell to be performed charging, discharges or terminate all
Weighing apparatus.
Li-ion batteries piles auto charge and discharge balancing equipment the most according to claim 1, is characterized in that: described discharge and recharge is equal
Weighing apparatus control unit is made up of relay control switching circuit, DC charging circuit and discharge circuit, relay control switching circuit
Receive the charge/discharge command signal that CPU sends, and drive charging control switch according to corresponding command signal
Or discharge control switch, corresponding cell is switched to DC charging circuit, discharge circuit or terminates equilibrium state.
Li-ion batteries piles auto charge and discharge balancing equipment the most according to claim 2, is characterized in that: at charge and discharge balancing
Controlling to be provided with current sampling unit between interface and charge-discharge control unit, current sampling unit is by each list in lithium battery group
The sampled value of the battery balanced electric current of body is transferred to CPU by relay control switching circuit, and CPU will
Sampled value compares with the protective current higher limit of setting, when euqalizing current value more than set protective current value time, by
This battery, to relay control switching circuit output instruction signal, is disconnected by Central Processing Unit with Balance route unit.
Li-ion batteries piles auto charge and discharge balancing equipment the most according to claim 3, is characterized in that: described DC charging
Circuit is the circuit in series with cell by AC/DC Switching Power Supply, power diode, charging control switch.
Li-ion batteries piles auto charge and discharge balancing equipment the most according to claim 4, is characterized in that: described discharge circuit
For by high-power resistance, the discharge control switch circuit in series with cell.
6., according to the Li-ion batteries piles auto charge and discharge balancing equipment described in any one of claim 1 to 5, it is characterized in that: institute
Stating communication unit and include 485 communication modules, CAN communication module and corresponding communication interface, CPU shows with touching
Use 485 communication module communications between screen, between CPU and management device of battery pack, use CAN communication module to lead to
News.
Li-ion batteries piles auto charge and discharge balancing equipment the most according to claim 6, is characterized in that: Li-ion batteries piles
Auto charge and discharge balancing equipment also includes a charging-discharging controller casing accommodating charging-discharging controller, at charging-discharging controller
Casing is provided with communication interface, charge and discharge balancing controls interface, cooling fan, on and off switch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620867692.4U CN205882795U (en) | 2016-08-12 | 2016-08-12 | Lithium ion battery organizes automatic charge -discharge balancing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620867692.4U CN205882795U (en) | 2016-08-12 | 2016-08-12 | Lithium ion battery organizes automatic charge -discharge balancing equipment |
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| CN205882795U true CN205882795U (en) | 2017-01-11 |
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| CN201620867692.4U Expired - Fee Related CN205882795U (en) | 2016-08-12 | 2016-08-12 | Lithium ion battery organizes automatic charge -discharge balancing equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253383A (en) * | 2016-08-12 | 2016-12-21 | 辽宁比科新能源股份有限公司 | A kind of Li-ion batteries piles auto charge and discharge balancing equipment |
| CN106532151A (en) * | 2016-12-07 | 2017-03-22 | 上海空间电源研究所 | Balance execution apparatus for single lithium ion storage battery |
| CN108448186A (en) * | 2018-01-30 | 2018-08-24 | 安徽省金屹电源科技有限公司 | A kind of base station battery manager control panel |
| CN108649638A (en) * | 2018-05-23 | 2018-10-12 | 力帆实业(集团)股份有限公司 | A kind of charge/discharge control method |
-
2016
- 2016-08-12 CN CN201620867692.4U patent/CN205882795U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253383A (en) * | 2016-08-12 | 2016-12-21 | 辽宁比科新能源股份有限公司 | A kind of Li-ion batteries piles auto charge and discharge balancing equipment |
| CN106532151A (en) * | 2016-12-07 | 2017-03-22 | 上海空间电源研究所 | Balance execution apparatus for single lithium ion storage battery |
| CN108448186A (en) * | 2018-01-30 | 2018-08-24 | 安徽省金屹电源科技有限公司 | A kind of base station battery manager control panel |
| CN108649638A (en) * | 2018-05-23 | 2018-10-12 | 力帆实业(集团)股份有限公司 | A kind of charge/discharge control method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181229 Address after: 112500 No. 01 Nanguanghui Road West, Guangming Avenue, Laosiping Industrial Park, Changtu County, Tieling City, Liaoning Province Patentee after: LIAONING BICO NEW ENERGY CO.,LTD. Address before: 112500 No. 01 Nanguanghui Road West, Guangming Avenue, Laosiping Industrial Park, Changtu County, Tieling City, Liaoning Province Co-patentee before: Wang Hongdong Patentee before: LIAONING BICO NEW ENERGY CO.,LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 |