CN207910505U - It is main passively to combine booster battery equalizing circuit - Google Patents
It is main passively to combine booster battery equalizing circuit Download PDFInfo
- Publication number
- CN207910505U CN207910505U CN201820086882.1U CN201820086882U CN207910505U CN 207910505 U CN207910505 U CN 207910505U CN 201820086882 U CN201820086882 U CN 201820086882U CN 207910505 U CN207910505 U CN 207910505U
- Authority
- CN
- China
- Prior art keywords
- battery
- battery pack
- oxide
- metal
- semiconductor
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of masters passively to combine booster battery equalizing circuit；Equalizing circuit includes m concatenated battery packs and m corresponding battery balanced units.The battery balanced unit includes passive equalizing circuit and active equalization transformer in group.The utility model increases active equalization circuit between battery pack on the basis of passive balanced.Quick energy adjusting can be carried out to the higher battery pack of electricity.Under the concatenated battery balanced scene of multiple batteries, it can also reach higher equalization efficiency.It effectively improves time for balance, saved the energy content of battery.
Description
Technical field
The utility model belongs to technical field of battery management, and it is passively balanced electric in conjunction with booster battery to be specifically designed into a kind of master
Road.
Background technology
In battery management system, need to be managed concatenated battery pack power.Battery equalizing circuit passes through to electricity
The equilibrium of the energy content of battery is realized in the intervention of pond energy, can improve the active volume of battery pack.It is realized and is connected by energy dissipation
The circuit of balancing energy is known as active equalization of battery circuit between battery.Passive balanced usually used resistance is to the higher electricity of multipotency amount
It discharges in pond.It is known as active equalization of battery circuit by the circuit of balancing energy between energy transfer realization series-connected cell.Actively
Equalizing circuit is used as intermediate energy carrier by inductively or capacitively equal devices, to realize that energy moves function.
Active equalization of battery directly bleeds off energy by resistance, waste that is simple in structure but causing energy.Actively
Weighing, circuit structure is complex, cost is higher, but the recycling of the energy content of battery may be implemented.Therefore battery equalizing circuit needs
Control system complexity, it is cost-effective while improve the energy content of battery recycling ratio.
Utility model content
The utility model combination active equalization and passive equilibrium, it is proposed that a kind of master is passively balanced electric in conjunction with booster battery
Road.
A kind of master passively combines booster battery equalizing circuit, it is characterised in that：Including series-connected cell packet and balanced unit；Institute
It states series-connected cell packet to be connected in series by m*n battery, including m battery pack, each battery pack is connected in series by n batteries；Institute
Balanced unit is stated to correspond with m battery pack；Each balanced unit includes n equalizing resistance, n metal-oxide-semiconductor, 1 DC/
DC converters and balancing control circuit；Each DC/DC converters include a transformer, a diode and a metal-oxide-semiconductor；
Each anode is connect with one end of an equalizing resistance in one balanced unit, the equalizing resistance other end and
The drain electrode of one metal-oxide-semiconductor connects, and the source electrode of the first metal-oxide-semiconductor and the cathode of battery connect；One end and one of the primary side of each transformer
The anode connection of a diode, the cathode of diode are connect with the anode of battery pack busbar, the other end and the electricity of transformer primary side
The cathode of pond packet busbar connects, the anode connection of one end of transformer secondary battery pack corresponding with the balanced unit, transformer
The other end on secondary side is connect with the second metal-oxide-semiconductor source electrode, and the drain electrode of the second metal-oxide-semiconductor battery electrode corresponding with the balanced unit connects
It connects；The grid of all metal-oxide-semiconductors connects balancing control circuit.
Further, the DC/DC converters are using isolation flyback boosting circuit.
Further, PWM modulation pulse output module is equipped in the balanced unit.
Compared with existing battery equalizing circuit, the beneficial effects of the utility model are as follows：The utility model is existing passive
Active equalization circuit is added on the basis of equilibrium.The utility model can not only complete the smaller passive equilibrium of electricity difference,
When battery capacity differs greatly, high-power active equalization can also be realized.It is effectively improved battery balanced flexible
Property, improve battery balanced efficiency.
Description of the drawings
Make in order to illustrate more clearly of required in being described to embodiment below the technical solution of the utility model embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some examples of the utility model, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the electrical block diagram of the utility model.
Specific implementation mode
Below in conjunction with the attached drawing in the example of the utility model, the technical solution in the example of the utility model is carried out clear
Chu, complete description, it is clear that described example is only the utility model a part of the embodiment, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The other embodiment obtained, shall fall within the protection scope of the present invention.
Battery equalizing circuit as shown in Figure 1 is divided into series-connected cell packet, balanced unit.The present embodiment series-connected cell packet is by m*
N battery pack is connected in series, be divided into battery pack 1, battery pack 2 ..., battery pack m, the battery pack connected by n batteries and
At.The balanced unit is corresponded with m battery pack.The balanced unit includes n equalizing resistance, 1 DC/DC transformation
Device and balancing control circuit.N equalizing resistance is corresponded with n battery of battery pack respectively.DC/DC converters primary side and electricity
Pond group is in parallel, and secondary side is connected with battery pack busbar positive and negative terminal.
Further, the present embodiment equalizing resistance R1_1 is connected with metal-oxide-semiconductor Q1_1 drain electrodes, and Q1_1 source electrodes are connected to list
At node between body battery, grid is connected with PWM1_1 control signals, and R1_n uses similar connection type with Q1_n.Institute
It states transformer T1 with metal-oxide-semiconductor Qt_1 drain electrodes to be connected, source electrode is connected with battery pack series connection node, and Qt_1 grids are controlled with PWMt_1
Signal processed is connected.The output of transformer T1 pairs side is connected to battery power feeds after connecting with diode D1.
In the present embodiment, DC/DC converters are using isolation reverse excitation circuit.
In the present embodiment, PWM modulation pulse output module is equipped in balanced unit.
The utility model exports PWM modulation pulsed drive Qt_1 by battery management chip and is turned on and off to control electricity
The size of the passive euqalizing current in pond.
The utility model exports PWM wave using MCU controllers by its internal PWM modulation pulse output module, passes through
MOS driving chips drive the on and off of Qt_1, to realize that battery pack charges to entire battery pack.
The passive equilibrium of single battery not only may be implemented in the utility model.When electricity differs greatly between battery pack
It waits, the active equalization circuit of corresponding administrative unit, which can be opened, is large current discharge the battery pack of higher electricity.Battery
The energy that group is released is charged by transformer secondary to entire battery pack.When wherein can be by the conducting of control metal-oxide-semiconductor Qt_1
Between to control the size of active equalization electric current.
The passive mixed equilibrium of master of battery pack may be implemented in the utility model.When monomer capacity volume variance is smaller,
The corresponding MOS of the unit inner control circuit output higher battery of PWM wave driving energy that weighs is connected, and the energy content of battery is discharged by resistance,
To realize the passive equilibrium of battery pack power.Such as：When battery B1_1 energy is higher, driving circuit exports PWM wave
PWM1_1 drives metal-oxide-semiconductor Q1_1 conductings, the energy content of battery to be discharged by resistance R1_1.The utility model not only can to battery into
Row is passive balanced, and can carry out active equalization to the higher battery pack of energy.When battery pack higher there are energy
It waits, battery pack, which corresponds to the output PWM driving metal-oxide-semiconductors of the control circuit in balanced unit, makes step-up transformer work.Battery pack passes through
Step-up transformer charges to entire battery pack, to realize efficient active equalization.Such as：When 1 energy of battery pack is higher
It waits, 1 inner control circuit of balanced unit exports the work of PWMt_1 driving transformers.After the energy of battery pack 1 is boosted by transformer
It charges to entire battery pack.
It is complicated that the utility model breaches active equalization circuit, it is difficult to be applied to the concatenated scene of a large amount of single batteries
Limitation.The equalization efficiency for improving more battery series batteries can rapidly reach balanced purpose.
The above is only the preferred embodiment of the present invention, all new in this practicality not to limit the utility model
Any modification, the equivalent replacement etc. made within the spirit and principle of type, should be included in the scope of protection of the utility model it
It is interior.
Claims (3)
1. master passively combines booster battery equalizing circuit, it is characterised in that：Including series-connected cell packet and balanced unit；The series connection
Battery pack is connected in series by m*n battery, including m battery pack, and each battery pack is connected in series by n batteries；The equilibrium
Unit is corresponded with m battery pack；Each balanced unit includes n equalizing resistance, n metal-oxide-semiconductor, 1 DC/DC transformation
Device and balancing control circuit；Each DC/DC converters include a transformer, a diode and a metal-oxide-semiconductor；
Each anode is connect with one end of an equalizing resistance in one balanced unit, the equalizing resistance other end and first
The drain electrode of metal-oxide-semiconductor connects, and the source electrode of the first metal-oxide-semiconductor and the cathode of battery connect；One end of the primary side of each transformer with one
The anode connection of diode, the cathode of diode are connect with the anode of battery pack busbar, the other end and battery of transformer primary side
The cathode of packet busbar connects, the anode connection of one end of transformer secondary battery pack corresponding with the balanced unit, transformer pair
The other end on side is connect with the second metal-oxide-semiconductor source electrode, and the drain electrode of the second metal-oxide-semiconductor battery electrode corresponding with the balanced unit connects
It connects；The grid of all metal-oxide-semiconductors connects balancing control circuit.
2. main as described in claim 1 passively combine booster battery equalizing circuit, it is characterised in that：The DC/DC converters are adopted
With isolation boosting reverse excitation circuit.
3. main as described in claim 1 passively combine booster battery equalizing circuit, it is characterised in that：It is set in the balanced unit
There is PWM modulation pulse output module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820086882.1U CN207910505U (en) | 2018-01-18 | 2018-01-18 | It is main passively to combine booster battery equalizing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820086882.1U CN207910505U (en) | 2018-01-18 | 2018-01-18 | It is main passively to combine booster battery equalizing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207910505U true CN207910505U (en) | 2018-09-25 |
Family
ID=63564070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820086882.1U Active CN207910505U (en) | 2018-01-18 | 2018-01-18 | It is main passively to combine booster battery equalizing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207910505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134428A (en) * | 2018-01-18 | 2018-06-08 | 杭州电子科技大学 | A kind of master passively combines booster battery equalizing circuit |
-
2018
- 2018-01-18 CN CN201820086882.1U patent/CN207910505U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134428A (en) * | 2018-01-18 | 2018-06-08 | 杭州电子科技大学 | A kind of master passively combines booster battery equalizing circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20200169097A1 (en) | Modularization system and method for battery equalizers based on multi- winding transformers | |
| CN102368628B (en) | Intelligent balance device of power batteries of electric vehicle | |
| CN108134429A (en) | A kind of master passively mixes decompression equalizing circuit | |
| CN108134414B (en) | Modular equalization circuit and equalization mode thereof | |
| US9099870B2 (en) | Charge redistribution method for cell arrays | |
| CN108054807A (en) | A kind of master passively combines buck battery equalizing circuit | |
| CN202564995U (en) | Multichannel battery pack charge-discharge control device | |
| CN104184192A (en) | Charging and discharging active equalization circuit for lithium ion power battery pack | |
| CN109742459B (en) | Lithium battery management system for rapid charging of unmanned aerial vehicle | |
| CN104578288A (en) | Double-level-bridge-arm series connection storage cell pack efficient equalizer topology circuit and control method thereof | |
| CN105140998A (en) | Bidirectional lossless equalization circuit of series battery pack based on inductive energy storage | |
| CN108134428A (en) | A kind of master passively combines booster battery equalizing circuit | |
| Xu et al. | A bidirectional integrated equalizer based on the sepic–zeta converter for hybrid energy storage system | |
| CN203104011U (en) | Charge/discharge managing and equalizing system for storage battery or capacitor | |
| CN207819499U (en) | It is main passively to combine buck battery equalizing circuit | |
| CN207819500U (en) | Main passive mixing decompression equalizing circuit | |
| CN209088562U (en) | A kind of charge and discharge current limliting battery pack parallel control device of minimal switches | |
| CN103501036B (en) | A kind of charging and discharging lithium battery pilot circuit | |
| CN207910505U (en) | It is main passively to combine booster battery equalizing circuit | |
| CN203827031U (en) | Battery group equalization circuit based on multi-secondary transformer | |
| CN209419304U (en) | Power supply unit and system | |
| CN115117970A (en) | Active equalization circuit, device and vehicle battery | |
| CN211266526U (en) | Power supply device | |
| CN210926208U (en) | Bidirectional equalization system for series battery pack | |
| CN210327401U (en) | Multi-directional power flow isolation type multi-port converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |