CN109510260A - A kind of charge-discharge control circuit of lithium battery group - Google Patents
A kind of charge-discharge control circuit of lithium battery group Download PDFInfo
- Publication number
- CN109510260A CN109510260A CN201811389864.1A CN201811389864A CN109510260A CN 109510260 A CN109510260 A CN 109510260A CN 201811389864 A CN201811389864 A CN 201811389864A CN 109510260 A CN109510260 A CN 109510260A
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- battery group
- inversion module
- commutation inversion
- charge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 51
- 239000000178 monomer Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 description 7
- 239000002253 acid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- H02J7/0026—
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- H02J7/027—
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of charge-discharge control circuits of lithium battery group, including commutation inversion module, lithium battery group and charge-discharge modules, the charge-discharge modules are for connecting lithium battery group and commutation inversion module comprising D.C. contactor, DC charging motor, Hall sensor, controller and check diode；The anode of the cathode of the check diode and commutation inversion module DC terminal is connect, and anode series Hall sensor and lithium battery are followed by the cathode of commutation inversion module DC terminal；The end of incoming cables of the DC charging motor is connected across the DC terminal of commutation inversion module by D.C. contactor, and the anode of charging end is connect with the anode of check diode, and the cathode of charging end and the cathode of commutation inversion module connect；The controller is electrically connected with each monomer, Hall sensor, DC charging motor and the D.C. contactor of lithium battery group respectively, with the signal for receiving lithium battery group each monomer and Hall sensor, to control D.C. contactor and adjust the charging current of DC charging motor.
Description
Technical field
The present invention relates to continued power energy technology fields, and in particular to a kind of charge-discharge control circuit of lithium battery group.
Background technique
Uninterruptible power supply is that battery is connected with commutation inversion module, is converted direct current by commutation inversion module
At alternating current, to be mentioned to single computer, computer network system or other power electronic equipments such as solenoid valve, pressure transmitter etc.
For stabilization, continual power supply；When alternating current input is normal, uninterruptible power supply will be supplied to load to make after alternating current pressure stabilizing
With uninterruptible power supply at this time is exactly an AC system electricity voltage-stablizer, while its battery charging also into machine；Work as commercial power interruption
When (forced outage), uninterruptible power supply is immediately by the direct current energy of battery, to load in such a way that commutation inversion module is converted
Continue to provide 220V alternating current, load is made to maintain to work normally and protects load soft and hardware not damaged.
In the prior art, the battery that uninterruptible power supply generallys use mainly uses lead-acid battery group and lithium battery group, when
When using lead-acid battery group, directly it can be attached with commutation inversion module, be filled by equal floating charge mode to lead-acid battery
Electricity discharges to the DC terminal of commutation inversion module when needing lead-acid battery to discharge；When using lithium battery group, due to lithium
Battery pack needs controller to be managed its charging voltage, temperature etc. in charging, it is therefore desirable to which external charger is to it
It charges.
But there are still defects for above-mentioned technical proposal: since lithium battery group needs controller to filling in its charging process
Piezoelectric voltage, temperature etc. are managed, and external DC charging motor is needed to charge it, thus lithium battery group can not directly with it is whole
Stream inverter module is attached, and then realizes the charging modes of equal floating charge.
In conclusion the connection type in existing technology between lithium battery group and commutation inversion module still has much room for improvement.
Summary of the invention
It is an object of the invention to overcome the problems, such as drawbacks described above present in background technique or, a kind of lithium battery group is provided
Charge-discharge control circuit, so that lithium battery group can directly replace lead-acid battery group.
To reach above-mentioned purpose, the present invention adopts the following technical scheme:
A kind of charge-discharge control circuit of lithium battery group, including commutation inversion module, lithium battery group and charge-discharge modules, institute
Charge-discharge modules are stated for connecting lithium battery group and commutation inversion module；The charge-discharge modules include D.C. contactor, direct current
Charger, Hall sensor, controller and check diode；The cathode and commutation inversion module DC terminal of the check diode
Anode connection, anode series Hall sensor and lithium battery are followed by the cathode of commutation inversion module DC terminal；The direct current
The end of incoming cables of charger is connected across the DC terminal of commutation inversion module, anode and the check two of charging end by D.C. contactor
The anode of pole pipe connects, and the cathode of charging end and the cathode of commutation inversion module connect；The controller respectively with lithium battery
Group each monomer, Hall sensor, DC charging motor and D.C. contactor electrical connection, with for receive each monomer of lithium battery group and
The signal of Hall sensor, to control D.C. contactor and adjust the charging current of DC charging motor.
By the above-mentioned description of this invention it is found that compared with the existing technology, have following of the present invention the utility model has the advantages that
1, it by setting charge-discharge modules, enables the controller to carry out pipe by the charging current to DC charging motor
Reason to realize charging of the commutation inversion module direct current section to lithium battery group, and control D.C. contactor can break when charging abnormal
It opens, is charged in a manner of the equal floating charge of DC terminal realization for enabling lithium battery group to pass through commutation inversion module, without by outer
The charger set charges.
2, by setting check diode, the charge-discharge modules between lithium battery group and commutation inversion module are obtained
To separate, i.e., Hall sensor, lithium battery group concatenate to form discharge loop with commutation inversion module, the end of incoming cables of DC charging motor
The DC terminal of commutation inversion module is connected across by D.C. contactor, the anode of charging end connects with the anode of check diode
It connects, the cathode of charging end and the cathode of commutation inversion module are connected to form charge circuit, i.e., put in this way, may make
Electrical circuit is in the state of preparation always, and then guarantees the continuity and reliability of lithium battery group electric discharge.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below to needed in embodiment description
Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the circuit connection diagram of uninterruptible power supply of the present invention.
Main appended drawing reference explanation:
Commutation inversion module 1, lithium battery group 2, D.C. contactor 3, DC charging motor 4, Hall sensor 5, controller 6,
Check diode D7, fuse 8, dc circuit breaker 9.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Obviously, described embodiment is the preferred embodiment of the present invention, and is not to be seen as the row to other embodiments
It removes.Based on the embodiment of the present invention, those skilled in the art are obtained all under the premise of not making creative work
Other embodiments shall fall within the protection scope of the present invention.
In claims of the present invention, specification and above-mentioned attached drawing, unless otherwise specifically limited, such as using term " the
One ", " second " or " third " etc. are provided to distinguish different objects, be not use to describe a particular order.
In claims of the present invention, specification and above-mentioned attached drawing, unless otherwise specifically limited, for the noun of locality, such as
Using term " center ", " transverse direction ", " longitudinal direction ", "horizontal", " vertical ", "top", "bottom", "inner", "outside", "upper", "lower",
The indicating positions such as "front", "rear", "left", "right", " clockwise ", " counterclockwise " or positional relationship are orientation based on the figure
And positional relationship, and be merely for convenience of the narration present invention and simplify description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation or be constructed and operated in a specific orientation, so can not be interpreted as limiting of the invention specific
Protection scope.
In claims of the present invention, specification and above-mentioned attached drawing, unless otherwise specifically limited, such as using term " Gu
Connect " or " being fixedly connected ", it should broadly understood, i.e., between the two without any connection side of displacement relation and relative rotation relationship
Formula, that is to say, that including be unremovably fixedly connected with, be removably secured connection, be linked together and by other devices or
Element is fixedly connected.
In claims of the present invention, specification and above-mentioned attached drawing, such as using term " includes ", " having " and they
Deformation, it is intended that " including but not limited to ".
Show referring to the circuit connection that Fig. 1, Fig. 1 show a kind of charge-discharge control circuit of lithium battery group of the present invention
It is intended to comprising commutation inversion module 1, lithium battery group 2 and charge-discharge modules.
The charge-discharge modules include D.C. contactor 3, DC charging motor 4, Hall sensor 5, controller 6, check two
Pole pipe D7, fuse 8 and dc circuit breaker 9.
The cathode of the check diode D7 is connect with the anode of 1 DC terminal of commutation inversion module, anode series Hall
Sensor 5 and lithium battery are followed by the cathode of 1 DC terminal of commutation inversion module；
The end of incoming cables of the DC charging motor 4 is connected across the DC terminal of commutation inversion module 1 by D.C. contactor 3,
The anode of charging end is connect with the anode of check diode D7, and the cathode of charging end is connect with the cathode of commutation inversion module 1；
The controller 6 is contacted with each monomer of lithium battery group 2, Hall sensor 5, DC charging motor 4 and direct current respectively
Device 3 is electrically connected；
Further, the DC terminal of the commutation inversion module 1 can also be concatenated with fuse 8 and dc circuit breaker 9, with into
The safety of one step promotion 2 charging process of lithium battery group.
Wherein, when load charges to lithium battery by commutation inversion module 1, electric current is straight from commutation inversion module 1
The anode for flowing end successively flows into dc circuit breaker 9, fuse 8, D.C. contactor 3, DC charging motor 4, Hall sensor 5 and lithium
Battery pack 2 is to form charge circuit；
When lithium battery group 2 by 1 pair of commutation inversion module load discharge when, electric current from lithium battery group 2 anode according to
Secondary inflow Hall sensor 5, check diode D7 and commutation inversion module 1 are to form discharge loop.
In practical work process, due to controller 6 and D.C. contactor 3, DC charging motor 4 and Hall sensor 5 and
Lithium battery group 2 is electrically connected, therefore Hall sensor 5 can be to the charging total current of lithium battery group 2, total voltage and each single lithium battery
Voltage and temperature are detected, and transmit signals to controller 6；
Controller 6 controls the charging and discharging state of lithium battery group 2 by the data processing to each signal, electric to lithium when needing
When pond group 2 is charged, controller 6 controls D.C. contactor 3 and is closed, and limits the charging current of DC charging motor 4, to prevent
The security risk that lithium battery group 2 is overloaded during the charging process；
When lithium battery group 2 is discharged, due to being provided with check diode D7 in discharge loop, so that discharge loop
Separated with charge circuit, discharge loop can always in prepare state, with guarantee discharge process continuity and can
By property.
The description of description above and embodiment is used to explain the present invention protection scope, but does not constitute and protect to the present invention
Protect the restriction of range.Through the invention or the enlightenment of above-described embodiment, those of ordinary skill in the art combine common knowledge, ability
The ordinary technical knowledge and/or the prior art in domain, it is available right by logical analysis, reasoning or limited test
Modification, equivalent replacement or the other improvements of the embodiment of the present invention or in which a part of technical characteristic, should be included in of the invention
Within protection scope.
Claims (1)
1. a kind of charge-discharge control circuit of lithium battery group, including commutation inversion module, it is characterised in that: further include lithium battery group
And charge-discharge modules, the charge-discharge modules are for connecting lithium battery group and commutation inversion module；
The charge-discharge modules include D.C. contactor, DC charging motor, Hall sensor, controller and check diode；
The anode of the cathode of the check diode and commutation inversion module DC terminal connect, anode series Hall sensor with
Lithium battery is followed by the cathode of commutation inversion module DC terminal；
The end of incoming cables of the DC charging motor is connected across the DC terminal of commutation inversion module by D.C. contactor, charging end
Anode is connect with the anode of check diode, and the cathode of charging end and the cathode of commutation inversion module connect；
The controller is electrically connected with each monomer, Hall sensor, DC charging motor and the D.C. contactor of lithium battery group respectively,
With the signal for receiving lithium battery group each monomer and Hall sensor, to control D.C. contactor and adjust DC charging motor
Charging current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811389864.1A CN109510260B (en) | 2018-11-21 | 2018-11-21 | Charging and discharging control circuit of lithium battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811389864.1A CN109510260B (en) | 2018-11-21 | 2018-11-21 | Charging and discharging control circuit of lithium battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109510260A true CN109510260A (en) | 2019-03-22 |
| CN109510260B CN109510260B (en) | 2024-04-09 |
Family
ID=65749382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811389864.1A Active CN109510260B (en) | 2018-11-21 | 2018-11-21 | Charging and discharging control circuit of lithium battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109510260B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090091295A1 (en) * | 2006-10-16 | 2009-04-09 | Wan Wei-Liang | Balanced charging/discharging circuit for lithium battery set |
| CN105978068A (en) * | 2016-05-26 | 2016-09-28 | 江苏深苏电子科技有限公司 | Charging and discharging management system of lithium battery |
| CN106532871A (en) * | 2016-12-31 | 2017-03-22 | 刘杰 | Charge and discharge control method for echelon lithium battery in communication base station |
| CN107064801A (en) * | 2016-11-30 | 2017-08-18 | 安徽安耐捷新能源科技有限公司 | A kind of charging and discharging lithium battery integration test cabinet based on sensor group |
| CN108110862A (en) * | 2017-11-29 | 2018-06-01 | 北京杉杉凯励新能源科技有限公司 | The charge-discharge control system of echelon lithium battery in communication base station |
| CN208890445U (en) * | 2018-11-21 | 2019-05-21 | 厦门海泰新能技术有限公司 | A kind of charge-discharge control circuit of lithium battery group |
-
2018
- 2018-11-21 CN CN201811389864.1A patent/CN109510260B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090091295A1 (en) * | 2006-10-16 | 2009-04-09 | Wan Wei-Liang | Balanced charging/discharging circuit for lithium battery set |
| CN105978068A (en) * | 2016-05-26 | 2016-09-28 | 江苏深苏电子科技有限公司 | Charging and discharging management system of lithium battery |
| CN107064801A (en) * | 2016-11-30 | 2017-08-18 | 安徽安耐捷新能源科技有限公司 | A kind of charging and discharging lithium battery integration test cabinet based on sensor group |
| CN106532871A (en) * | 2016-12-31 | 2017-03-22 | 刘杰 | Charge and discharge control method for echelon lithium battery in communication base station |
| CN108110862A (en) * | 2017-11-29 | 2018-06-01 | 北京杉杉凯励新能源科技有限公司 | The charge-discharge control system of echelon lithium battery in communication base station |
| CN208890445U (en) * | 2018-11-21 | 2019-05-21 | 厦门海泰新能技术有限公司 | A kind of charge-discharge control circuit of lithium battery group |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109510260B (en) | 2024-04-09 |
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