CN107276147A - Battery equalization system - Google Patents
Battery equalization system Download PDFInfo
- Publication number
- CN107276147A CN107276147A CN201710358030.3A CN201710358030A CN107276147A CN 107276147 A CN107276147 A CN 107276147A CN 201710358030 A CN201710358030 A CN 201710358030A CN 107276147 A CN107276147 A CN 107276147A
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- CN
- China
- Prior art keywords
- module
- cell
- control module
- voltage
- battery
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
Abstract
The embodiment of the present invention provides a kind of battery equalization system, including：Control module, voltage acquisition module, charging module, discharge module；Voltage acquisition module is used for the voltage for gathering cell in battery modules, and the voltage of cell is sent into control module；Control module, for the voltage according to cell, it is determined that whether carrying out charge or discharge to cell；If control module determines to charge to cell, control charging module charges to cell；If control module determines to discharge to cell, control discharge module discharges cell.The embodiment of the present invention improves the flexibility to each electric quantity of single batteries regulation in battery modules.
Description
Technical field
The present embodiments relate to automobile manufacturing field, more particularly to a kind of battery equalization system.
Background technology
As new-energy automobile is in the development of China's automobile industry, lithium battery as electric automobile power resources, in length
The unbalanced phenomenon of electricity occurs in the phase course of work.
For the unbalanced phenomenon of regulating cell electricity, battery equalization system of the prior art is by fixed current to electricity
Pond module charging, and battery modules are discharged by the power resistor of fixed resistance value, cause each cell in battery modules
The regulation of electricity lacks flexibility.
The content of the invention
The embodiment of the present invention provides a kind of battery equalization system, to improve to each electric quantity of single batteries regulation in battery modules
Flexibility.
The one side of the embodiment of the present invention is to provide a kind of battery equalization system, including：Control module, voltage acquisition mould
Block, charging module, discharge module；Wherein,
The control module is connected with the voltage acquisition module, the charging module, the discharge module respectively；
The voltage acquisition module, the charging module, the discharge module are connected with battery modules respectively, the battery
Module includes multiple cells；
The voltage acquisition module, the voltage for gathering cell in the battery modules, and the monomer is electric
The voltage in pond is sent to the control module；
The control module, for the voltage according to the cell, it is determined that whether being filled to the cell
Electricity or electric discharge；
If the control module determines to charge to the cell, the charging module is controlled to the monomer
Battery is charged；
If the control module determines to discharge to the cell, the discharge module is controlled to the monomer
Battery is discharged.
Optionally, the control module calculates the electricity of the cell according to the voltage of the cell, if
The electricity of the cell is less than threshold value, it is determined that the cell is charged, if the electricity of the cell
Amount is higher than threshold value, it is determined that the cell is discharged.
Optionally, if the control module determines to charge to the cell, sent to the charging module
First controlled quentity controlled variable, first controlled quentity controlled variable is used for the charging electricity for controlling the charging module to charge the cell
Stream.
Optionally, if the control module determines to discharge to the cell, sent to the discharge module
Second controlled quentity controlled variable, second controlled quentity controlled variable is used for the electric discharge electricity for controlling the discharge module to discharge the cell
Stream.
Optionally, the charging module includes charge power supply part and electric current regulation part.
Optionally, the discharge module includes pliotron.
Optionally, battery equalization system also includes：Temperature collect module and fan；
The temperature collect module and the fan are connected with the control module respectively,
The temperature collect module is used for the temperature and/or the battery modules for gathering the battery equalization system chips
Temperature；
The control module is additionally operable to the temperature of the temperature and/or the battery modules according to the chip, and control is described
The wind speed of fan.
Optionally, battery equalization system also includes：
Power transfer module, is connected respectively with the fan and the control module, for by supply voltage be converted to
The first voltage that the fan is powered, and the first voltage is converted into the second voltage to the chip power supply.
Optionally, battery equalization system also includes：
Host computer, is connected with the control module, for sending first controlled quentity controlled variable and/or institute to the control module
The second controlled quentity controlled variable is stated, and for receiving the voltage and/or temperature of the cell that the control module is sent.
Optionally, battery equalization system also includes：Input button and display screen；
The input button and the display screen are connected with the control module respectively；
The input button is used to input first controlled quentity controlled variable and/or second controlled quentity controlled variable；
The display screen is used for the voltage and/or temperature for showing the cell.
Battery equalization system provided in an embodiment of the present invention, cell in battery modules is gathered by voltage acquisition module
Voltage, and the voltage of cell in battery modules is sent to control module, control module according to the voltage of cell,
Determine whether the cell needs to carry out charge or discharge, if the cell needs charging, control module control charging
Module charges to the cell, if the cell needs electric discharge, control module controls discharge module to the monomer
Battery is discharged, and improves the flexibility to each electric quantity of single batteries regulation in battery modules.
Brief description of the drawings
Fig. 1 is the structure chart of battery equalization system provided in an embodiment of the present invention；
The structure chart for the battery equalization system that Fig. 2 provides for another embodiment of the present invention；
The structure chart for the battery equalization system that Fig. 3 provides for another embodiment of the present invention；
The structure chart for the battery equalization system that Fig. 4 provides for another embodiment of the present invention；
The structure chart for the battery equalization system that Fig. 5 provides for another embodiment of the present invention.
Embodiment
Fig. 1 is the structure chart of battery equalization system provided in an embodiment of the present invention.Battery provided in an embodiment of the present invention is equal
Balance system includes：Control module 11, charging module 12, discharge module 13, voltage acquisition module 14；Wherein, 11 points of control module
It is not connected with charging module 12, discharge module 13, voltage acquisition module 14, charging module 12, discharge module 13, voltage acquisition mould
Block 14 is connected with battery modules 15 respectively, and battery modules 15 include multiple cells, and such as battery modules 15 are by 12 section monomers
Battery is in series.Voltage acquisition module 14 is used for the voltage for gathering cell in battery modules 15, such as voltage acquisition mould
The monitoring 12 in real time of block 14 saves the voltage that cell is often saved in cell, and the voltage of every section cell is sent into control
Module 11, optionally, passes through Serial Peripheral Interface (SPI) (Serial between voltage acquisition module 14 and control module 11
Peripheral Interface, SPI) communicated, for example, voltage acquisition module 14 passes through the voltage of 12 section cells
SPI is sent to control module 11.Whether control module 11 is used for the voltage according to cell, it is determined that being carried out to the cell
Charge or discharge, specifically, when the voltage of the cell is less than voltage threshold, it is determined that the cell is charged,
When the voltage of the cell is more than voltage threshold, it is determined that discharging the cell.If the determination pair of control module 11
The cell is charged, then controls 12 pairs of cells of charging module to charge.If control module 11 is determined to this
Cell is discharged, then controls 13 pairs of cells of discharge module to discharge.
Specifically, voltage of the control module 11 according to cell, calculates the electricity of the cell, if the monomer is electric
The electricity in pond is less than power threshold, it is determined that the cell is charged, now control module 11 can be to charging module 12
The first controlled quentity controlled variable is sent, first controlled quentity controlled variable can be specifically an analog quantity, the first controlled quentity controlled variable is used to control charging module 12
The charging current charged to the cell.Charging module 12 includes charge power supply part and electric current regulation part, charging
Power module is provided by a fan-out capability for the positive exciting switching voltage regulators of 5V/10A, and current regulating module is using BUCK configuration switches electricity
Charging current is adjusted according to the analog quantity for source, charging module 12.
If the electricity of the cell is higher than power threshold, it is determined that the cell is discharged, now controlled
Module 11 can send the second controlled quentity controlled variable to discharge module 13, and second controlled quentity controlled variable can be specifically an analog quantity, the second control
Measure the discharge current for controlling 13 pairs of cells of discharge module to be discharged.Discharge module 13 includes pliotron,
Discharge module 13 uses linear structure, and energy dissipation when cell discharges is on the pliotron, and discharge module 13 connects
Discharge current is adjusted the second controlled quentity controlled variable for receiving the transmission of control module 11.
The present embodiment gathers the voltage of cell in battery modules by voltage acquisition module, and will be single in battery modules
The voltage of body battery is sent to control module, and control module determines whether the cell needs according to the voltage of cell
Charge or discharge are carried out, if the cell needs charging, control module control charging module fills to the cell
Electricity, if the cell needs electric discharge, control module control discharge module discharges the cell, improved to electricity
The flexibility of each electric quantity of single batteries regulation in the module of pond.
The structure chart for the battery equalization system that Fig. 2 provides for another embodiment of the present invention.On the basis of embodiment illustrated in fig. 1
On, battery equalization system also includes：Temperature collect module 16 and fan 17, temperature collect module 16 and fan 17 respectively with control
Module 11 is connected, and temperature collect module 16 can be specifically connected by SPI with control module 11, and temperature collect module 16 is used to adopt
Collect the temperature of the battery equalization system chips and/or the temperature of battery modules 15；Control module 11 is additionally operable to according to described
The temperature of chip and/or the temperature of battery modules 15, control the wind speed of fan 17, such as temperature and/or electricity when the chip
When the temperature of pond module 15 is more than temperature threshold, the wind speed of control fan 17 is improved, when the temperature and/or battery mould of the chip
When the temperature of group 15 is less than temperature threshold, the wind speed reduction of control fan 17, or fan 17 is closed, preferably dissipated so as to reach
Thermal effect.
The present embodiment controls the wind speed of fan by control module, can reach preferable radiating effect.
The structure chart for the battery equalization system that Fig. 3 provides for another embodiment of the present invention.On the basis of embodiment illustrated in fig. 2
On, the battery equalization system that the present embodiment is provided also includes power transfer module 18, power transfer module 18 and fan 17 and control
Molding block 11 is connected respectively, and power transfer module 18 is used to change supply voltage such as 220V using ac/dc (AC/DC)
The first voltage such as 12V is turned for the first voltage such as 12V powered to fan 17, and use DC-DC (DC/DC)
It is changed to the second voltage such as 5V powered to System on Chip/SoC.
Supply voltage is converted to the voltage powered to fan by the present embodiment by power transfer module, and be converted to
The voltage that System on Chip/SoC is powered, improves the flexibility of Power convert.
The structure chart for the battery equalization system that Fig. 4 provides for another embodiment of the present invention.On the basis of embodiment illustrated in fig. 3
On, the battery equalization system that the present embodiment is provided also includes host computer 19, and host computer 19 can be specifically that computer, server etc. are set
Standby, host computer 19 is connected with control module 11, and host computer 19 is used to send the first control in above-described embodiment to control module 11
Amount processed and/or the second controlled quentity controlled variable, wherein, the first controlled quentity controlled variable and/or the second controlled quentity controlled variable can be that user is inputted by host computer 19
Controlled quentity controlled variable.In addition, the voltage and/or temperature of the cell that host computer 19 can be sent with receive and control module 11, and will
The voltage and/or temperature of cell are shown to user, wherein, host computer 19 and control module 11 can pass through controller LAN
Network (Controller Area Network, CAN) bus is communicatively coupled.
The present embodiment sends the controlled quentity controlled variable that user inputs by host computer to control module, realizes user to battery modules
Control, in addition, by the voltage and/or temperature of host computer displaying monomer battery, realizing user to cell state
Monitoring.
The structure chart for the battery equalization system that Fig. 5 provides for another embodiment of the present invention.As shown in figure 5, as to such as Fig. 4
The alternative way of shown embodiment, battery equalization system can also include input button 20 and display screen 21, input button
20 and display screen 21 be connected respectively with control module 11；Input button 20 be used for the first controlled quentity controlled variable for inputting in above-described embodiment and
Second controlled quentity controlled variable；Display screen 21 is used for the voltage and/or temperature of displaying monomer battery.
In the present embodiment, user can input controlled quentity controlled variable for controlling battery modules by inputting button to control module,
Control of the user to battery modules is realized, in addition, by the voltage and/or temperature of display screen displaying monomer battery, realizing
Monitoring of the user to cell state.
In summary, the embodiment of the present invention gathers the voltage of cell in battery modules by voltage acquisition module, and
The voltage of cell in battery modules is sent to control module, control module determines the list according to the voltage of cell
Whether body battery needs to carry out charge or discharge, if the cell needs charging, control module controls charging module to this
Cell is charged, if the cell needs electric discharge, control module controls discharge module to carry out the cell
Electric discharge, improves the flexibility to each electric quantity of single batteries regulation in battery modules；The wind speed of fan is controlled by control module,
It can reach preferable radiating effect；Supply voltage is converted to by the voltage powered to fan, Yi Jizhuan by power transfer module
The voltage powered to System on Chip/SoC is changed to, the flexibility of Power convert is improved；User is sent to control module by host computer
The controlled quentity controlled variable of input, realizes control of the user to battery modules, in addition, by the voltage of host computer displaying monomer battery and/
Or temperature, realize monitoring of the user to cell state；User can be inputted for controlling by inputting button to control module
The controlled quentity controlled variable of battery modules processed, realizes control of the user to battery modules, in addition, passing through the electricity of display screen displaying monomer battery
Pressure and/or temperature, realize monitoring of the user to cell state.
, can be by it in several embodiments provided by the present invention, it should be understood that disclosed apparatus and method
Its mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, only
Only a kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can be tied
Another system is closed or is desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or discussed
Coupling each other or direct-coupling or communication connection can be the INDIRECT COUPLINGs or logical of device or unit by some interfaces
Letter connection, can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in an embodied on computer readable and deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are to cause a computer
Equipment (can be personal computer, server, or network equipment etc.) or processor (processor) perform the present invention each
The part steps of embodiment methods described.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (Read-
Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disc or CD etc. it is various
Can be with the medium of store program codes.
Those skilled in the art can be understood that, for convenience and simplicity of description, only with above-mentioned each functional module
Division progress for example, in practical application, can distribute complete by different functional modules by above-mentioned functions as needed
Into the internal structure of device being divided into different functional modules, to complete all or part of function described above.On
The specific work process of the device of description is stated, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of battery equalization system, it is characterised in that including：Control module, voltage acquisition module, charging module, electric discharge mould
Block；Wherein,
The control module is connected with the voltage acquisition module, the charging module, the discharge module respectively；
The voltage acquisition module, the charging module, the discharge module are connected with battery modules respectively, the battery modules
Including multiple cells；
The voltage acquisition module, the voltage for gathering cell in the battery modules, and by the cell
Voltage is sent to the control module；
The control module, for the voltage according to the cell, it is determined that whether the cell is charged or
Electric discharge；
If the control module determines to charge to the cell, the charging module is controlled to the cell
Charged；
If the control module determines to discharge to the cell, the discharge module is controlled to the cell
Discharged.
2. battery equalization system according to claim 1, it is characterised in that the control module is according to the cell
Voltage, the electricity of the cell is calculated, if the electricity of the cell is less than threshold value, it is determined that to the monomer
Battery is charged, if the electricity of the cell is higher than threshold value, it is determined that the cell is discharged.
3. battery equalization system according to claim 2, it is characterised in that if the control module is determined to the monomer
Battery is charged, then sends the first controlled quentity controlled variable to the charging module, and first controlled quentity controlled variable is used to control the charging mould
The charging current that block is charged to the cell.
4. battery equalization system according to claim 2, it is characterised in that if the control module is determined to the monomer
Battery is discharged, then sends the second controlled quentity controlled variable to the discharge module, and second controlled quentity controlled variable is used to control the electric discharge mould
The discharge current that block is discharged the cell.
5. battery equalization system according to claim 4, it is characterised in that the charging module includes charge power supply part
Part is adjusted with electric current.
6. battery equalization system according to claim 5, it is characterised in that the discharge module includes pliotron.
7. the battery equalization system according to claim any one of 1-6, it is characterised in that also include：Temperature collect module
And fan；
The temperature collect module and the fan are connected with the control module respectively,
The temperature collect module is used to gather the temperature of the battery equalization system chips and/or the temperature of the battery modules
Degree；
The control module is additionally operable to the temperature of the temperature and/or the battery modules according to the chip, controls the fan
Wind speed.
8. battery equalization system according to claim 7, it is characterised in that also include：
Power transfer module, is connected, for supply voltage to be converted to described respectively with the fan and the control module
The first voltage that fan is powered, and the first voltage is converted into the second voltage to the chip power supply.
9. battery equalization system according to claim 8, it is characterised in that also include：
Host computer, is connected with the control module, for sending first controlled quentity controlled variable and/or described the to the control module
Two controlled quentity controlled variables, and for receiving the voltage and/or temperature of the cell that the control module is sent.
10. battery equalization system according to claim 8, it is characterised in that also include：Input button and display screen；
The input button and the display screen are connected with the control module respectively；
The input button is used to input first controlled quentity controlled variable and/or second controlled quentity controlled variable；
The display screen is used for the voltage and/or temperature for showing the cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710358030.3A CN107276147A (en) | 2017-05-19 | 2017-05-19 | Battery equalization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710358030.3A CN107276147A (en) | 2017-05-19 | 2017-05-19 | Battery equalization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107276147A true CN107276147A (en) | 2017-10-20 |
Family
ID=60065124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710358030.3A Pending CN107276147A (en) | 2017-05-19 | 2017-05-19 | Battery equalization system |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108016309A (en) * | 2017-11-24 | 2018-05-11 | 安徽特凯新能源科技有限公司 | A kind of battery management system for improving battery durable |
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