CN207801535U - A kind of echelon battery energy storage system circuit - Google Patents
A kind of echelon battery energy storage system circuit Download PDFInfo
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- CN207801535U CN207801535U CN201820134584.5U CN201820134584U CN207801535U CN 207801535 U CN207801535 U CN 207801535U CN 201820134584 U CN201820134584 U CN 201820134584U CN 207801535 U CN207801535 U CN 207801535U
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- battery pack
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Abstract
A kind of echelon battery energy storage system circuit is provided at least two battery packages, is carried out between every group of battery package in parallel；Wherein the first battery package is provided with the first battery pack and the second battery pack, the anode of first battery pack is connect with the anode of diode V1, the cathode of diode V1 is connect with system output anode, at the both ends of the diode V1, bridging has the normal open switch of switch control module K1, the negative terminal of first battery pack is connect with the anode of second battery pack, and the negative terminal of second battery pack is connect with system negative terminal；The anode of second battery pack is connect after also concatenating the normal open switch of switch control module K2 with system output anode；The switch control module K1, switch control module K2 and switch control module K3 control terminals are connect with the control terminal of control module respectively；First battery pack, the second battery pack, in be both provided with communication interface, communicated respectively with the control module by the communication interface.
Description
Technical field
The utility model is related to power battery reutilization technology fields, and in particular to a kind of echelon battery energy storage system electricity
Road.
Background technology
As more and more batteries of electric automobile packets reach the retired time limit, the echelon of electric automobile power battery utilize and
Recycling also becomes more and more urgent.When batteries of electric automobile inclusion quantity decays to the 80% of rated capacity, it is considered as being not suitable for
It is used on electric vehicle.If directly being scrapped and being recycled retired battery pack, the significant wastage of resource can be caused.It is single
The retired cell system voltage of one new energy vehicle and capacity cannot meet energy-storage system use condition, need through connection in series-parallel, with
Reach demand of the energy-storage system to voltage and power system capacity, the direct connection in series-parallel of the retired battery of new-energy automobile is used, there is peace
Full hidden danger, and battery system function cannot be played to greatest extent.
Utility model content
The utility model in view of the deficiencies of the prior art, proposes a kind of simple in structure, easy to operate, intelligence degree height,
Can avoid the first access system of battery pack high current charge-discharge caused by voltage is inconsistent, and realize to battery pack voltage into
The function that row is individually adjusted is gone here and there retired battery pack with achieving the purpose that the whole packet of the retired battery pack of new energy vehicle utilizes
Used in parallel, the use condition of compatible multiple battery packet reduces improvement cost, the echelon battery for making system performance preferably play
Energy-storage system circuit, specific technical solution are as follows：
A kind of echelon battery energy storage system circuit is provided at least two battery packages, is carried out simultaneously between every group of battery package
Connection；
Wherein the first battery package is provided with the first battery pack and the second battery pack, the anode and two of first battery pack
The anode connection of pole pipe V1, the cathode of diode V1 are connect with system output anode, are bridged at the both ends of the diode V1
There are the normal open switch of switch control module K1, the negative terminal of first battery pack to be connect with the anode of second battery pack, institute
The negative terminal for stating the second battery pack is connect with system negative terminal；
The anode of second battery pack connects after also concatenating the normal open switch of switch control module K2 with system output anode
It connects；
The anode of second battery pack connects after also concatenating the normal open switch of switch control module K3 with system output negative terminal
It connects；
Wherein the second battery package is provided with third battery pack and the 4th battery pack, the anode and two of the third battery pack
The anode connection of pole pipe V2, the cathode of diode V2 are connect with system output anode, are bridged at the both ends of the diode V2
There are the normal open switch of switch control module K4, the negative terminal of the third battery pack to be connect with the anode of the 4th battery pack, it should
The negative terminal of 4th battery pack is connect with system negative terminal；
The anode of 4th battery pack connects after also concatenating the normal open switch of switch control module K5 with system output anode
It connects；
The anode of 4th battery pack connects after also concatenating the normal open switch of switch control module K6 with system output negative terminal
It connects；
The switch control module K1, switch control module K2, switch control module K3, switch control module K4, switch
The control terminal of control module K5 and switch control module K6 are connect with the control terminal of control module respectively；
It is both provided with communication interface in first battery pack, the second battery pack, third battery pack and the 4th battery pack,
It is communicated respectively with the control module by the communication interface.
Preferably to realize the utility model, may further be：
The system output anode is provided with current detection sensor, the output end of the current detection sensor with it is described
The test side of control module connects.
The switch control module K1, switch control module K2, switch control module K3, switch control module K4, switch
Control module K5 and switch control module K6 is contactor.
The beneficial effects of the utility model are：1, retired battery is subjected to flexible connection in series-parallel use, meets energy-storage system
Use to voltage and current, and the on off state by adjusting contactor K1 to K6, realize the battery pack high to voltage
Group electric discharge in advance, when each battery package voltage is consistent, then parallel discharge, avoid the first access system of retired battery because of voltage
It is inconsistent to lead to high current charge-discharge；2, retired battery can have unbalanced phenomena, pass through the switch of control contactor K1 to K6
State is, it can be achieved that individually charge to the battery in battery package, to greatest extent to the safe and efficient profit of retired battery progress
With.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear to be made to the scope of protection of the utility model
Define.
As shown in Figure 1：A kind of echelon battery energy storage system circuit, setting is there are two battery package, between every group of battery package
It carries out in parallel；
Wherein the first battery package is provided with the first battery pack and the second battery pack, the anode and two of first battery pack
The anode connection of pole pipe V1, the cathode of diode V1 are connect with system output anode, are bridged at the both ends of the diode V1
There are the normal open switch of switch control module K1, the negative terminal of first battery pack to be connect with the anode of second battery pack, institute
The negative terminal for stating the second battery pack is connect with system negative terminal；
The anode of second battery pack connects after also concatenating the normal open switch of switch control module K2 with system output anode
It connects；
The anode of second battery pack connects after also concatenating the normal open switch of switch control module K3 with system output negative terminal
It connects；
Wherein the second battery package is provided with third battery pack and the 4th battery pack, the anode and two of the third battery pack
The anode connection of pole pipe V2, the cathode of diode V2 are connect with system output anode, are bridged at the both ends of the diode V2
There are the normal open switch of switch control module K4, the negative terminal of the third battery pack to be connect with the anode of the 4th battery pack, it should
The negative terminal of 4th battery pack is connect with system negative terminal；
The anode of 4th battery pack connects after also concatenating the normal open switch of switch control module K5 with system output anode
It connects；
The anode of 4th battery pack connects after also concatenating the normal open switch of switch control module K6 with system output negative terminal
It connects；
The switch control module K1, switch control module K2, switch control module K3, switch control module K4, switch
The control terminal of control module K5 and switch control module K6 are connect with the control terminal of control module respectively；
The wherein described switch control module K1, switch control module K2, switch control module K3, switch control module K4,
Switch control module K5 and switch control module K6 is contactor；
It is both provided with communication interface in first battery pack, the second battery pack, third battery pack and the 4th battery pack,
It is communicated respectively with the control module by the communication interface.
The system output anode is provided with current detection sensor, the output end of the current detection sensor with it is described
The test side of control module connects, which is Hall sensor.
The operation principle of the utility model：
In normal conditions of use, the first battery pack and the second battery pack are composed in series the first branch, third battery pack with
4th battery pack is composed in series the second branch, and the first branch is in parallel with the second branch progress, forms energy-storage system power supply unit.It moves back
When using as a servant the first access system of battery, contactor K1-K6 is completely in off-state, and the first branch passes through diode with the second branch
V1 and V2 supplying power for outside, discharge scenario are determined that the high branch of total voltage is first put by the first branch and the second branch total voltage
Electricity, when the first branch reaches same voltage value with the second branch, contactor K1 and K4 switches are closed, and avoid retired battery first
Access system leads to high current charge-discharge because voltage is inconsistent；
When unbalanced phenomena occur in the first battery pack and the second battery pack in the first branch, then cut off in the second branch contacting
The switch of device K4, K5 and K6 individually charge to battery pack by controlling contactor realization in the first branch.
If you need to individually charge to the second battery pack, then cut off the first battery pack inside contactor, at the same cut off contactor K1,
K3 is switched, and is closed K2 switches, and realization individually charges to the second battery pack.
When should need individually to charge to the first battery pack together, then the second battery pack inside contactor is cut off, while cut-out connects
Tentaculum K1 and K2 switch, is closed K3 switches, and realization individually charges to the first battery pack.
When unbalanced phenomena occur in third battery pack and the 4th battery pack in the second branch, then cut off in the first branch contacting
Device K1, K2, K3 switch, by controlling contactless contactor in the second branch, realization individually charges to battery pack.
If you need to individually charge to the 4th battery pack, then third battery pack inside contactor is cut off, while cutting off contactor K4
And k6, K5 switches are closed, realization individually charges to the 4th battery pack.
When should need individually to charge to third battery pack together, then the 4th battery pack inside contactor is cut off, while cut-out connects
Tentaculum K4 and K5 switch, is closed K6 switches, and realization individually charges to third battery pack.
Claims (3)
1. a kind of echelon battery energy storage system circuit, it is characterised in that：It is provided at least two battery packages, every group of battery package
Between carry out it is in parallel；
Wherein the first battery package is provided with the first battery pack and the second battery pack, the anode and diode of first battery pack
The anode connection of V1, the cathode of diode V1 are connect with system output anode, and at the both ends of the diode V1, bridging has out
The normal open switch of control module K1 is closed, the negative terminal of first battery pack is connect with the anode of second battery pack, and described the
The negative terminal of two battery packs is connect with system negative terminal；
The anode of second battery pack is connect after also concatenating the normal open switch of switch control module K2 with system output anode；
The anode of second battery pack is connect after also concatenating the normal open switch of switch control module K3 with system output negative terminal；
Wherein the second battery package is provided with third battery pack and the 4th battery pack, the anode and diode of the third battery pack
The anode connection of V2, the cathode of diode V2 are connect with system output anode, and at the both ends of the diode V2, bridging has out
The normal open switch of control module K4 is closed, the negative terminal of the third battery pack is connect with the anode of the 4th battery pack, and the 4th
The negative terminal of battery pack is connect with system negative terminal；
The anode of 4th battery pack is connect after also concatenating the normal open switch of switch control module K5 with system output anode；
The anode of 4th battery pack is connect after also concatenating the normal open switch of switch control module K6 with system output negative terminal；
The switch control module K1, switch control module K2, switch control module K3, switch control module K4, switch control
The control terminal of module K5 and switch control module K6 are connect with the control terminal of control module respectively；
It is both provided with communication interface in first battery pack, the second battery pack, third battery pack and the 4th battery pack, is passed through
The communication interface is communicated with the control module respectively.
2. echelon battery energy storage system circuit according to claim 1, it is characterised in that：It is arranged in the system output anode
There is current detection sensor, the output end of the current detection sensor is connect with the test side of the control module.
3. echelon battery energy storage system circuit according to claim 1, it is characterised in that：The switch control module K1, it opens
Closing control module K2, switch control module K3, switch control module K4, switch control module K5 and switch control module K6 is
Contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820134584.5U CN207801535U (en) | 2018-01-26 | 2018-01-26 | A kind of echelon battery energy storage system circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820134584.5U CN207801535U (en) | 2018-01-26 | 2018-01-26 | A kind of echelon battery energy storage system circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207801535U true CN207801535U (en) | 2018-08-31 |
Family
ID=63269501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820134584.5U Active CN207801535U (en) | 2018-01-26 | 2018-01-26 | A kind of echelon battery energy storage system circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207801535U (en) |
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2018
- 2018-01-26 CN CN201820134584.5U patent/CN207801535U/en active Active
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