CN205986251U - Double cell energy storage system - Google Patents
Double cell energy storage system Download PDFInfo
- Publication number
- CN205986251U CN205986251U CN201620954438.8U CN201620954438U CN205986251U CN 205986251 U CN205986251 U CN 205986251U CN 201620954438 U CN201620954438 U CN 201620954438U CN 205986251 U CN205986251 U CN 205986251U
- Authority
- CN
- China
- Prior art keywords
- battery
- storage system
- cells
- management system
- battery management
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a double cell energy storage system includes: two battery packages, controller and double knives key switch, the battery package is including group battery and battery management system, battery management system connects rather than the group battery that corresponds, is connected with the controller simultaneously, double knives key switch is connected two battery management system of simultaneous control with the total anode and two battery management system of two group batteries respectively, two battery management system respectively with controller signal connects. The utility model provides a double cell energy storage system of good reliability can control two battery management system and start simultaneously or close, and one of them battery breaks down or charges when being full of, can use another battery to carry out the charge -discharge, improves energy storage system's stability and reliability, the utility model discloses an energy storage system's individual cell package can carry out work, and the weight ratio that every battery package can all be changed alone and dismantle and individual cell wraps is lighter, and the transportation is also relatively more convenient.
Description
Technical field
This utility model is related to a kind of battery energy storage field, more particularly to a kind of double cell energy-storage system.
Background technology
Battery bag is made up of according to certain series-parallel system two or more cell.Battery management
System (BMS) can control the functions such as the charging of battery bag, electric discharge.Energy-storage system generally includes battery bag and controls battery bag to fill
The battery management system of the functions such as electric discharge.Energy-storage system is commonly used to electric automobile, family's energy storage, energy-accumulating power station etc..
In practical application, because cell capacity is not enough, battery bag needs multiple cells in parallel.Existing energy storage
System to meet certain power demands only with a battery bag, then the weight weight of this battery bag is it has not been convenient to transporting and changing
Thus the very flexible of energy-storage system.Additionally, existing energy-storage system adopts the situation of single battery bag, if a certain cell
When breaking down, whole energy-storage system all will be paralysed, thus the poor reliability of energy-storage system.
Utility model content
The purpose of this utility model is to overcome weak point of the prior art, provides a kind of double cell of good reliability to store up
Can system.
The purpose of this utility model is achieved through the following technical solutions：
A kind of double cell energy-storage system, including：Two battery bags, controller and double-pole key switch；Described battery
Include set of cells and battery management system；The corresponding described set of cells of described battery management system connects, simultaneously with institute
State controller to connect；Described double-pole key switch is connected with total anode of two set of cells and two battery management systems respectively, with
When control two battery management systems；Two described battery management systems are connected with described controller signals respectively.
As further preferred version, described battery bag also includes being connected on always just continuing of its corresponding total anode of set of cells
Electrical equipment.
As further preferred version, described battery bag also includes being connected on always bearing of its corresponding total negative terminal of set of cells and continues
Electrical equipment.
As further preferred version, described battery bag also includes being connected on the precharge of its corresponding total anode of set of cells
Road, the corresponding always positive relay of described precharging circuit is connected in parallel.
As further preferred version, described precharging circuit includes the preliminary filling resistance being connected in series and preliminary filling relay.
As further preferred version, total anode of described two set of cells passes through its corresponding always positive relay respectively
It is connected with each other, total negative terminal of described two set of cells is connected with each other by its corresponding relay of always bearing respectively.
As further preferred version, described battery bag also includes DC/DC transducer, and described DC/DC transducer is just
The total anode through the corresponding set of cells of double-pole key switch for the pole input connects, the corresponding set of cells of negative input total
Negative terminal connects, and the power input of the corresponding described battery management system of the outfan of DC/DC transducer connects.
As further preferred version, described battery bag also include being sequentially connected in series in the total anode of set of cells electric fuse and
Diverter.
As further preferred version, described battery management system is connected with charger by charging CAN, and by control
Device CAN processed is connected with described controller.
As further preferred version, described battery bag also includes the always positive relay being connected with described battery management system
Device coil, always negative relay coil.
Compared with prior art, the beneficial effects of the utility model are：
This utility model is opened by being provided with two battery bags, controller and double-pole key for a kind of double cell energy-storage system
Close, controller pass through control double-pole key switch break-make, and then two battery management systems can be controlled to start simultaneously or
Simultaneously close off；It can be determined that after preliminary filling branch road closure, whether there is electric current between two battery bags after being provided with preliminary filling branch road
Persistently export, the situation that mutual discharge and recharge occurs between two battery bags can be prevented, improve the stability of battery energy storage system
And reliability.When one of battery failure or when be full of, it is possible to use another battery carries out charge and discharge
Electricity, improves stability and the reliability of energy-storage system, meanwhile, the single battery bag of energy-storage system of the present utility model can be carried out
Work, each battery bag can be individually replaced and dismantle and the weight of single battery bag is lighter, and transport is also more convenient.
Brief description
Fig. 1 is the schematic diagram of the double cell energy-storage system of this utility model one embodiment.
Specific embodiment
For the ease of understanding this utility model, below with reference to relevant drawings, this utility model is more fully retouched
State.Better embodiment of the present utility model is given in accompanying drawing.But, this utility model can come in many different forms
Realize however it is not limited to embodiments described herein.On the contrary, providing the purpose of these embodiments to be to make to this practicality newly
It is more thoroughly comprehensive that the disclosure of type understands.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left ",
For illustrative purposes only, being not offered as is unique embodiment for " right " and similar statement.
Unless otherwise defined, all of technology used herein and scientific terminology are led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.In term used in the description of the present utility model it is simply herein
The purpose of description specific embodiment is it is not intended that in limiting this utility model.Term as used herein " and/or " bag
Include the arbitrary and all of combination of the Listed Items of one or more correlations.
Refer to Fig. 1, a kind of double cell energy-storage system 10 includes：Two battery bags 100, controller 200 and double-pole key
Switch 300.Described battery bag 100 includes set of cells 110 and its corresponding battery management system 120, battery management system respectively
120 corresponding set of cells 110 connect, and are connected with controller 200 simultaneously.Double-pole key switch 300 respectively with two batteries
Total anode of group 110 and two battery management systems 120 connect, and control two battery management systems 120 simultaneously；Two battery managements
System 120 is connected with controller 200 signal respectively.Battery management system 120 is connected with charger 400 by charging CAN, and leads to
Cross controller CAN to be connected with controller 300.
Wherein, two set of cells 110 inside battery core connection in series-parallel connected modes are identical, and the voltage of output is also identical.Charger
400 pass through the charging to two battery bags 100 for the charging CAN realization, and controller 200 passes through controller CAN and realizes to two batteries
The control of bag 100.When being equipped with management system, at least need two-way CAN, the controller phase of wherein one road CAN and electrical equipment
Even, it is referred to as controller CAN, in addition a road CAN is connected with charger, referred to as charging CAN, the charging CAN of two battery bags 100
It is docking together respectively with controller CAN.
Being provided with two battery bags 100 in double cell energy-storage system 10 can provide power supply for system, specifically, by two
Individual battery bag 100 is respectively designated as the first battery bag and the second battery bag, when needing battery bag to provide power supply, first determines whether the
The size of the SOC value of one battery bag and the second battery bag, by the big first battery bag as offer power supply of SOC value, when this battery
When the SOC value of bag is relatively low, then to provide power supply by another battery bag.Controller 200 is to control the first battery bag and the second electricity
The work of Chi Bao, double-pole key switch 300 is to control two battery management systems 120 to start simultaneously or turn off.
Wherein in an embodiment, battery bag 100 also includes the always positive relay being connected on its total anode of set of cells 110
130.Battery bag 100 also includes the always negative relay 140 being connected on its total negative terminal of set of cells 110.Specifically, in the first battery bag
Include first always positive relay K1 and first always bear relay K2, the second battery bag includes second always positive relay K4 with
Second always bears relay K5.
Total anode of two set of cells 110 passes through its corresponding always positive relay 130 respectively and is connected with each other, two set of cells
110 total negative terminal passes through its corresponding relay 140 of always bearing respectively and is connected with each other.
Battery bag 100 also includes being connected on the precharging circuit of its corresponding total anode of set of cells, and precharging circuit is corresponding
Always positive relay 130 is connected in parallel.Precharging circuit includes the preliminary filling resistance being connected in series and preliminary filling relay.Specifically, first
The precharging circuit of battery bag includes the first preliminary filling resistance R7 being connected in series and the first preliminary filling relay K3, the second battery bag pre-
Charging circuit includes the second preliminary filling resistance R8 being connected in series and the second preliminary filling relay K6.The effect of two preliminary filling resistance is to prevent
The inconsistent situation causing mutual discharge and recharge between battery bag 100 of two battery bag 100 voltage.Wherein, the first battery bag is also wrapped
Include the first preliminary filling relay coil R3, described first preliminary filling relay coil R3 that corresponding battery management system 120 connects
For controlling the break-make of the first preliminary filling relay K3；Second battery bag also includes what corresponding battery management system 120 connected
Second preliminary filling relay coil R6, described second preliminary filling relay coil R6 are used for controlling the break-make of the second preliminary filling relay K6.
Always positive relay coil that battery bag 100 also includes being connected with battery management system 120, always bear relay coil.
Specifically, the first battery bag also include that corresponding battery management system 120 connects first always positive relay coil R1 and
First always bears relay coil R2, described first always positive relay coil R1 be used for controlling the break-make of the first total positive relay K1,
Described first always bears relay coil R2 is used for controlling first always to bear relay K2；Second battery bag also includes corresponding electricity
Always positive relay coil R4 and second always bears relay coil R5 to the second of pond management system 120 connection, and described second always just continues
Electric apparatus coil R4 is used for controlling the break-make of the second total positive relay K4, and described second always bears relay coil R5 is used for control second
Always bear the break-make of relay K5.
Wherein in an embodiment, after being closed at preliminary filling branch road, if battery management system 120 has detected electric current
During sustainable existence, then judge that there is battery is surrounded by output, then disconnect the connection of preliminary filling relay, do not carry out power on operation.Setting
It can be determined that after preliminary filling branch road closure, whether there is the lasting output of electric current between two battery bags after having preliminary filling branch road, permissible
Prevent the situation that mutual discharge and recharge occurs between two battery bags, improve stability and the reliability of battery energy storage system.
Battery bag 100 also includes DC/DC transducer 150, and the electrode input end of DC/DC transducer 150 is opened through double-pole key
The total anode closing 300 corresponding set of cells 110 connects, and total negative terminal of the corresponding set of cells of negative input 110 connects,
The power input of the corresponding battery management system 120 of the outfan of DC/DC transducer 150 connects.
The power supply of battery management system 120 can by externally fed it is also possible to be powered by battery bag 100, specifically,
Power to battery management system 120 after battery bag 100 150 cell voltage pressure drops of built-in DC/DC transducer.When not possessing
In the case of externally fed power supply, then need to be powered directly to battery management system 120 by battery bag 100.
Battery bag 100 also includes being sequentially connected in series electric fuse 160 and diverter 170 in the total anode of set of cells 110.Electric fuse
160 is for the total protection to battery bag 100, prevents battery bag 100 external short circuit from causing whole energy-storage system fault.Point
Stream device 170 is the detection for electric current.
Operation principle：
Discharge process：When being in discharge mode, after being closed at double-pole key switch, the battery management of two battery bags
System starts upper electricity simultaneously, and battery management system distributes case number (CN) 1 and 2 automatically by controller CAN.Then, battery management system
The information of voltage of each battery bag and SOC value are sent to controller by controller CAN, controller judges two battery bags
The size of SOC value, controller sends work order, the battery of this battery bag to the battery management system of the high battery bag of SOC value
After management system receives work order, battery management system is connected the always positive relay coil of this battery bag and is always born relay
Coil, and then control always positive relay and the closure always bearing relay, thus realizing the electric discharge of this battery bag.
Wherein in a kind of embodiment, when controller detects and only exists a battery bag, that is, controller exists
Regulation time in, receive only a battery bag SOC value when, then allow single battery job contract make.If controller detects
Identical to the SOC value of two battery bags, then controller only closes one of which always positive relay and total by battery management system
Negative relay, completes discharge operation.
Another embodiment is, when battery management system detects and only exists a battery bag, that is, cell tube
Reason system, within the time of regulation, when not receiving outside CAN message, then allows single battery job contract to make.If cell tube
The SOC value of reason system detectio to two battery bags is identical, then battery management system only closes one of which always positive relay and total
Negative relay, completes discharge operation.
Charging process：When being in charge mode, first close the always positive relay of a battery bag and always bear relay, so
Afterwards, the battery management system of this battery bag sends charging signals to charger by charging CAN, and charger receives charging signals
Afterwards, charger is started working, and charges for corresponding set of cells.After set of cells is full of, the battery management system of this battery bag is not
Retransmit charging signals to charger, and disconnect the always positive relay of this battery bag and always bear relay.Another battery bag is prolonged
When certain time after, be closed again always positive relay and the total negative relay of this battery bag, and then complete step below, for this electricity
The set of cells of Chi Bao is charged work, after being full of, then disconnects always positive relay and always negative relay.Wherein it is to be noted that,
The time delay regular hour can be preferably 0.5s between 0.2s-1s.
In whole charge and discharge process, if fault in the battery bag that certain is working, this battery bag
Battery management system just disconnects the always positive relay of this battery bag and always bears relay, uploads fault by controller CAN simultaneously
Code and relay status give another battery management system, and the battery management system of another battery bag receives DTC and continues
After electrical appliance state disconnects, time delay certain time, connect always positive relay coil and the power supply always bearing relay coil, and then control
Always positive relay and the closure always bearing relay, proceed the work that battery bag does not complete.It is noted that time delay one timing
Between can be between 0.2s-1s, the preferred time is 0.5s.
This utility model, by being provided with the energy-storage system of two batteries, when one of battery failure, can make
Carry out discharge and recharge with another battery, improve stability and the reliability of energy-storage system, meanwhile, energy-storage system of the present utility model
Single battery bag can be operated, each battery bag can be individually replaced and dismantle, the weight ratio of single battery bag
Relatively light, transport is also more convenient.
The above embodiment only have expressed several embodiments of the present utility model, and its description is more concrete and detailed
Carefully, but therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that it is general for this area
For logical technical staff, without departing from the concept of the premise utility, some deformation can also be made and improve, these are all
Belong to protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be defined by claims.
Claims (10)
1. a kind of double cell energy-storage system is it is characterised in that include：Two battery bags, controller and double-pole key switch；Described
Battery bag includes set of cells and battery management system；The corresponding described set of cells of described battery management system connects, simultaneously
It is connected with described controller；Described double-pole key switch is connected with total anode of two set of cells and two battery management systems respectively
Connect, control two battery management systems simultaneously；Described battery management system is connected with described controller signals respectively.
2. double cell energy-storage system according to claim 1 it is characterised in that：It is right that described battery bag also includes being connected on it
Answer the always positive relay of the total anode of set of cells.
3. double cell energy-storage system according to claim 2 it is characterised in that：It is right that described battery bag also includes being connected on it
That answers the total negative terminal of set of cells always bears relay.
4. double cell energy-storage system according to claim 2 it is characterised in that：It is right that described battery bag also includes being connected on it
Answer the precharging circuit of the total anode of set of cells, the corresponding always positive relay of described precharging circuit is connected in parallel.
5. double cell energy-storage system according to claim 4 it is characterised in that：Described precharging circuit includes being connected in series
Preliminary filling resistance and preliminary filling relay.
6. the double cell energy-storage system according to any one of claim 3-5 it is characterised in that：Described two set of cells total
Anode is connected with each other by its corresponding always positive relay respectively, and total negative terminal of described two set of cells is corresponding by it respectively
Always bear relay to be connected with each other.
7. double cell energy-storage system according to claim 1 it is characterised in that：Described battery bag also includes DC/DC conversion
Device, the electrode input end of the described DC/DC transducer total anode through the corresponding set of cells of double-pole key switch connects, and negative pole is defeated
Enter to hold the total negative terminal of corresponding set of cells to connect, the corresponding described battery management system of the outfan of DC/DC transducer
Power input connect.
8. double cell energy-storage system according to claim 1 it is characterised in that：Described battery bag also include being sequentially connected in series in
The electric fuse of the total anode of set of cells and diverter.
9. double cell energy-storage system according to claim 1 it is characterised in that：Described battery management system passes through to charge
CAN is connected with charger, and is connected with described controller by controller CAN.
10. double cell energy-storage system according to claim 3 it is characterised in that：Described battery bag also includes and described electricity
The always positive relay coil of pond management system connection, always negative relay coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620954438.8U CN205986251U (en) | 2016-08-26 | 2016-08-26 | Double cell energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620954438.8U CN205986251U (en) | 2016-08-26 | 2016-08-26 | Double cell energy storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205986251U true CN205986251U (en) | 2017-02-22 |
Family
ID=58035966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620954438.8U Expired - Fee Related CN205986251U (en) | 2016-08-26 | 2016-08-26 | Double cell energy storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205986251U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451604A (en) * | 2016-08-26 | 2017-02-22 | 惠州市蓝微新源技术有限公司 | Dual-battery energy storage system |
| CN108599297A (en) * | 2018-04-25 | 2018-09-28 | 爱驰汽车有限公司 | A kind of battery pack switching device and switching method, battery pack switching system |
-
2016
- 2016-08-26 CN CN201620954438.8U patent/CN205986251U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451604A (en) * | 2016-08-26 | 2017-02-22 | 惠州市蓝微新源技术有限公司 | Dual-battery energy storage system |
| CN108599297A (en) * | 2018-04-25 | 2018-09-28 | 爱驰汽车有限公司 | A kind of battery pack switching device and switching method, battery pack switching system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104734236B (en) | Battery set charge/discharge device and method | |
| CN103326439B (en) | The equalizing circuit of set of cells and method | |
| CN103354377B (en) | A kind of energy-accumulating power station lithium battery automatic ring current control and holding circuit | |
| CN106451604A (en) | Dual-battery energy storage system | |
| CN201478865U (en) | Improved charging balanced circuit | |
| CN102709981A (en) | Energy-lossless equalizing charging device for series lithium ion battery pack | |
| CN105140998B (en) | The two-way non-dissipative equalizing circuit of series battery based on inductive energy storage | |
| CN109510319A (en) | A kind of energy storage battery system being made of super capacitor, lithium battery and lead-acid battery | |
| CN205986251U (en) | Double cell energy storage system | |
| CN106340917A (en) | Lithium ion power storage battery power source charging and discharging control system for hybrid power system | |
| CN103036277B (en) | Equalizer circuit of dynamic and energy storage battery pack | |
| CN209948703U (en) | Lithium battery voltage-sharing control system | |
| CN206242904U (en) | A kind of novel power supply system of hybrid vehicle | |
| CN201690248U (en) | Accumulator charging and discharging connection device | |
| CN215817643U (en) | Novel charging and discharging lithium battery UPS power supply for machine room | |
| CN207117203U (en) | A kind of lithium-ion energy storage unit and unit group | |
| CN106300461A (en) | A kind of ups system of intelligent management battery | |
| CN210693501U (en) | Battery equalization circuit, device and power supply system | |
| CN104716674A (en) | Charging and discharging compensation system for series storage battery pack | |
| CN210956904U (en) | Common-inductance energy storage type lithium battery equalization circuit | |
| CN204559135U (en) | The equalizing system of electricity | |
| CN112383108A (en) | Quick charging circuit system of low-voltage battery pack for charging pile by using direct current | |
| CN203368009U (en) | Lithium cell automatic circulating current control and protecting circuit for energy storage power station | |
| CN208257438U (en) | More battery parallel discharge device and system | |
| CN207134843U (en) | A kind of new-energy automobile charging pile with energy storage function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20190826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |