CN108258754A - A kind of charge and discharge quick seamless handoff system - Google Patents
A kind of charge and discharge quick seamless handoff system Download PDFInfo
- Publication number
- CN108258754A CN108258754A CN201711477733.4A CN201711477733A CN108258754A CN 108258754 A CN108258754 A CN 108258754A CN 201711477733 A CN201711477733 A CN 201711477733A CN 108258754 A CN108258754 A CN 108258754A
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Classifications
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- 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
-
- 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
- H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits
Abstract
A kind of charge and discharge quick seamless handoff system, including：Battery pack, battery management unit, charge-discharge control unit, power supply unit, display unit and anti-reverse diode group, by charge-discharge control unit and anti-reverse diode group and external load, either total anode of charge power supply connect total negative output terminal and is connect with total negative terminal of external load or charge power supply sequence total positive output end of battery pack successively；The first input end of power supply unit and total positive output end of battery pack connect, and total negative output terminal of the second input terminal and battery pack connects, and the power input of the first output terminal and battery management unit connects, and the output terminal of second output terminal and display unit connects；First power output end of battery management unit and the first input end of display unit connect.The quick seamless handoff of the achievable charge and discharge process of the present invention.
Description
Technical field
The present invention relates to charge and discharge electrical domain, more particularly to a kind of charge and discharge quick seamless handoff system.
Background technology
In uninterruptible power system, charge circuit and discharge loop are usually provided with, charge circuit is by charge relay
It carries out control and realizes charging work of the charge power supply to system, discharge loop carries out control by electric discharge relay and realizes system external
Connect the electric discharge work of load.In system initialization state, charge relay and electric discharge relay are being all in off-state
System needs control unit output control signal when charging to be closed charge relay, and charge circuit is connected, realizes to system
Charging work；When system needs electric discharge, control unit output control signal first disconnects charge relay, rear to be closed electric discharge relay
Device realizes the electric discharge work of system.
Relay is closed completely and is fully disconnected and be required to the regular hour as a kind of mechanical device.When system is full of
When electric, in the case where alternating current loses electric power suddenly, system needs at once to be powered external load, to prevent the prominent of alternating current
It so loses and external load is damaged；When system discharge to it is under-voltage when, at this time alternating current electric power again suddenly restore when need horse
On charge to discharge damage caused by the under-voltage component internal system to prevent locking system system.Therefore, how to realize and be
The quick seamless handoff of system charging and discharging state is a technical problem for being badly in need of solving.
Invention content
The purpose of the present invention is overcoming shortcoming of the prior art, a kind of charge and discharge quick seamless handoff system is provided
System.
The purpose of the present invention is achieved through the following technical solutions：
A kind of charge and discharge quick seamless handoff system, including：Battery pack, battery management unit, charge-discharge control unit, confession
Electric unit, display unit and anti-reverse diode group, sequence passes through the charge and discharge to total positive output end of the battery pack successively
Control unit and the anti-reverse diode group are connect with total anode of external load or charge power supply, total negative output terminal with it is outer
Connect load or total negative terminal connection of charge power supply；
The first input end of said supply unit is connect with total positive output end of the battery pack, the second input terminal with it is described
Total negative output terminal connection of battery pack, the first output terminal are connect with the power input of the battery management unit, the second output
End is connect with the output terminal of the display unit；
First power output end of the battery management unit is connect with the first input end of the display unit, the second electricity
Source output terminal is connect with the second input terminal of the display unit, and third power output end and the third of the display unit input
End connection, the first output control terminal are connect with the charging input control end of the charge-discharge control unit, the second output control terminal
It is connect with the electric discharge input control end of the charge-discharge control unit.
The charge-discharge control unit includes charge control loop and discharge control loop in one of the embodiments,
The charge control loop includes the first relay K1 and the first diode D1, the charging input control of the first relay K1
Hold the charging input control end as the charge-discharge control unit, one end and the battery pack of the first relay K1
Total positive output end connects, and is connect after other end series connection the first diode D1 with the anti-reverse diode group；
The discharge control loop includes the second relay K2 and the second diode D2, the electric discharge of the second relay K2
Electric discharge input control end of the input control end as the charge-discharge control unit, one end series connection institute of the second relay K2
It is connect after stating the second diode D2 with total positive output end of the battery pack, the other end is connect with the anti-reverse diode group.
The anti-reverse diode group includes third diode D3 and the 4th diode D4 in one of the embodiments,
The cathode of the third diode D3 is connect after being connect with the anode of the 4th diode D4 with the charge-discharge control unit,
Anode is connect after being connect with the cathode of the 4th diode D4 with total anode of external load or charge power supply.
Said supply unit includes the 5th diode D5, the 6th diode D6, double-pole switch in one of the embodiments,
K3 and DC/DC power supply changeover devices, the first input ends of DC/DC power supply changeover devices double-pole switch K3 described in sequential series successively
With the first input end as said supply unit after the 5th diode D5, the second input terminal is double described in sequential series successively
The second input terminal after knife-like switch K3 and the 6th diode D6 as said supply unit, the first output terminal is as the confession
First output terminal of electric unit, second output terminal of the second output terminal as said supply unit.
The display unit includes the 7th diode D7, the 8th diode D8 and the 9th 2 in one of the embodiments,
The cathode of pole pipe D9, the 7th diode D7 respectively with the cathode of the 8th diode D8 and the 9th diode D9
Output terminal after cathode connection as the display unit, first input end of the anode as the display unit；
Second input terminal of the anode of the 8th diode D8 as the display unit；
Third input terminal of the anode of the 9th diode D9 as the display unit.
The total of one end of current divider F1, the current divider F1 and the battery pack is further included in one of the embodiments,
Negative terminal connects, and the other end is connect with total negative terminal of external load or charge power supply, and the current divider F1 also passes through current acquisition
Line is connect with the battery management unit.
This technical solution has following advantageous effect compared with the prior art：
1. due to setting the first diode in charge circuit, the second diode is set in discharge loop, is being needed to system
When being charged, electric current is only capable of flowing to system from charge circuit；When system is needed to be powered, electric current is only capable of from discharge loop
Flow to external load.During system charge or discharge, the first relay and the second relay are in closed state, real
The charge and discharge quick seamless handoff of existing system.
Total anode of charge power supply and external load is connected to after anti-reverse diode group 2. charge-discharge control unit is connected,
The setting of anti-reverse diode can effectively prevent the first diode and the second diode is reversed the risk of breakdown, improves
The safety and reliability of system.
Description of the drawings
Fig. 1 is the circuit theory schematic diagram of the charge and discharge quick seamless handoff system in the present embodiment.
Specific embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In attached drawing
Give the better embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that make to understand more the disclosure
Add thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The normally understood meaning of technical staff is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " including one or more
The arbitrary and all combination of relevant Listed Items.
It is the circuit theory schematic diagram of charge and discharge quick seamless handoff system as shown in Figure 1, including：Battery pack 100, battery
Administrative unit 200, charge-discharge control unit 300, power supply unit 400, display unit 500 and anti-reverse diode group 600, it is described
Sequence passes through the charge-discharge control unit 300 and the anti-reverse diode group 600 to total positive output end of battery pack 100 successively
Total negative output terminal is connect with total anode of external load either charge power supply with external load or total negative terminal of charge power supply to connect
It connects；
The first input end of said supply unit 400 is connect with total positive output end of the battery pack 100, the second input terminal
It is connect with total negative output terminal of the battery pack 100, the power input of the first output terminal and the battery management unit 200 connects
It connects, second output terminal is connect with the output terminal of the display unit 500；
First power output end of the battery management unit 200 is connect with the first input end of the display unit 500,
Second source output terminal is connect with the second input terminal of the display unit 500, third power output end and the display unit
500 third input terminal connection, the first output control terminal and the charging input control end of the charge-discharge control unit 300 connect
It connects, the second output control terminal is connect with the electric discharge input control end of the charge-discharge control unit 300.
Specifically, the charge-discharge control unit 300 includes charge control loop and discharge control loop, the charging control
Circuit processed is included described in the charging input control end conduct of the first relay K1 and the first diode D1, the first relay K1
The charging input control end of charge-discharge control unit 300, one end of the first relay K1 and the battery pack 100 it is total just
Output terminal connects, and is connect after other end series connection the first diode D1 with the anti-reverse diode group 600；
The discharge control loop includes the second relay K2 and the second diode D2, the electric discharge of the second relay K2
Electric discharge input control end of the input control end as the charge-discharge control unit 300, one end string of the second relay K2
It is connect after joining the second diode D2 with total positive output end of the battery pack 100, the other end and the anti-reverse diode
600 connection of group.
Specifically, the anti-reverse diode group 600 include third diode D3 and the 4th diode D4, the described 3rd 2
The cathode of pole pipe D3 is connect after being connect with the anode of the 4th diode D4 with the charge-discharge control unit 300, anode with
It is connect after the cathode connection of the 4th diode D4 with total anode of external load or charge power supply.
Specifically, said supply unit 400 includes the 5th diode D5, the 6th diode D6, double-pole switch K3 and DC/DC
Power supply changeover device, the first input ends of DC/DC power supply changeover devices double-pole switch K3 described in sequential series and described successively
First input end after five diode D5 as said supply unit 400, the second input terminal successively open by double-pole described in sequential series
The second input terminal after the K3 and the 6th diode D6 of pass as said supply unit 400, the first output terminal is as the confession
First output terminal of electric unit 400, second output terminal of the second output terminal as said supply unit 400.
Specifically, the display unit 500 includes the 7th diode D7, the 8th diode D8 and the 9th diode D9, institute
Cathode of the cathode of the 7th diode D7 respectively with the cathode of the 8th diode D8 and the 9th diode D9 is stated to connect
Output terminal as the display unit 500 afterwards, first input end of the anode as the display unit 500；
Second input terminal of the anode of the 8th diode D8 as the display unit 500；
Third input terminal of the anode of the 9th diode D9 as the display unit 500.
Specifically, current divider F1 is further included, one end of the current divider F1 is connect with total negative terminal of the battery pack 100,
The other end is connect with total negative terminal of external load or charge power supply, and the current divider F1 also passes through current acquisition line and the electricity
Pond administrative unit 200 connects.
Concrete operating principle is as follows：
Charging process
Electric power in alternating current is normal, and alternating current charges to system, and battery management unit 200 is automatically controlled to charge and discharge
300 input control signal of unit processed is closed the first relay K1 and the second relay K2.Due to the first diode D1 and the two or two
The presence of pole pipe D2 so that alternating current can only flow into battery pack 100 from charge circuit, charge to battery pack 100.
Discharge process
In the case where the electric power of alternating current is lost suddenly, system external connects load and is powered.Due to the first relay K1
Closed state is in charging process with the second relay K2, in discharge process, battery management unit 200 is without to filling
300 input control signal of control of discharge unit controls the first relay K1 and the second relay K2.Due to the first diode D1 and
The presence of second diode D2 so that the supply current of system is only capable of flowing to external load from discharge loop, realizes system external
Connect the power supply of load.
It should be noted that due to setting the first diode D1 in charge circuit, the second diode is set in discharge loop
D2, when needing to charge to system, electric current is only capable of flowing to system from charge circuit；When system is needed to be powered, electricity
Stream is only capable of flowing to external load from discharge loop.During system charge or discharge, the first relay K1 and the second relay
Device K2 is in closed state, realizes the charge and discharge quick seamless handoff of system.
It should also be noted that, in charging process, the electric power of power supply unit 400 is derived from charge power supply, in discharge process
In, the electric power of power supply unit 400 is derived from battery pack 100.Electricity will be inputted by being set to the DC/DC power supply changeover devices of power supply unit 400
Pressure is converted to suitable voltage output to the power input of battery management unit 200, and electricity is provided for battery management unit 200
Power wakes up battery management unit 200.Battery management unit 200, can be in the first power output end output power after being waken up
To the 7th diode D1, second source output terminal output power gives the 8th diode D8, and third power output end output power is given
9th diode D9.In charging process, since charge circuit is switched on, the first power output end of battery management unit 200
Output power promotes the 7th diode D7 conductings to shine, custom system is prompted to be in charged state to the 7th diode D7.
In discharge process, since discharge loop is switched on, the second source output terminal output power of battery management unit 200 to the eight or two
Pole pipe D8 promotes the 8th diode current flow to shine, and custom system is prompted to be in discharge condition.When system is in malfunction
When, battery management unit 200 promotes the 9th diode D9 to be connected in third power output end output power to the 9th diode D9
It shines, custom system is prompted to be in malfunction, need to carry out troubleshooting.
It should also be noted that, as a preferred embodiment, anti-reverse diode group 600 is additionally provided in system, is being charged
In the process, charge circuit is switched on, and electric current flows through charge circuit from third diode D3, is equivalent to third diode D3 and is connected
In charge circuit, part pressure drop is shared, the risk for preventing the first diode D1 breakdown.Similarly, it in discharge process, puts
Electrical circuit is switched on, and electric current flows through the 4th diode D4 from discharge loop, is equivalent to the 4th diode D4 and is connected on discharge loop
In, the 4th diode D4 has shared part pressure drop, the risk for preventing the second diode D2 breakdown.Anti-reverse diode group 600
Setting improve the safety and reliability of system.
It should also be noted that, as a preferred embodiment, system is additionally provided with current divider F1 and fuse F2.Current divider F1
For acquiring the electric current of battery management unit 200.Fuse F2 can by force be stopped when system power is excessive with fuse wire
System works.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that those of ordinary skill in the art are come
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (6)
1. a kind of charge and discharge quick seamless handoff system, which is characterized in that including：Battery pack (100), battery management unit
(200), charge-discharge control unit (300), power supply unit (400), display unit (500) and anti-reverse diode group (600), institute
Total positive output end of battery pack (100) is stated successively sequentially by the charge-discharge control unit (300) and anti-reverse two pole
Total anode of pipe group (600) and external load either charge power supply connect total negative output terminal and external load or charge power supply
Total negative terminal connection；
The first input end of said supply unit (400) is connect with total positive output end of the battery pack (100), the second input terminal
It is connect with total negative output terminal of the battery pack (100), the power input of the first output terminal and the battery management unit (200)
End connection, second output terminal are connect with the output terminal of the display unit (500)；
First power output end of the battery management unit (200) is connect with the first input end of the display unit (500),
Second source output terminal is connect with the second input terminal of the display unit (500), and third power output end and the display are single
The third input terminal connection of first (500), the first output control terminal and the charging input control of the charge-discharge control unit (300)
End connection, the second output control terminal are connect with the electric discharge input control end of the charge-discharge control unit (300).
2. charge and discharge quick seamless handoff system according to claim 1, which is characterized in that the charge-discharge control unit
(300) including charge control loop and discharge control loop, the charge control loop includes the first relay K1 and the one or two
The charging input control end of pole pipe D1, the first relay K1 are inputted as the charging of the charge-discharge control unit (300)
Control terminal, one end of the first relay K1 are connect with total positive output end of the battery pack (100), described in other end series connection
It is connect after first diode D1 with the anti-reverse diode group (600)；
The electric discharge that the discharge control loop includes the second relay K2 and the second diode D2, the second relay K2 inputs
Electric discharge input control end of the control terminal as the charge-discharge control unit (300), one end series connection of the second relay K2
It is connect after the second diode D2 with total positive output end of the battery pack (100), the other end and the anti-reverse diode
Group (600) connects.
3. charge and discharge quick seamless handoff system according to claim 1, which is characterized in that the anti-reverse diode group
(600) including third diode D3 and the 4th diode D4, cathode and the 4th diode D4 of the third diode D3
Anode connection after connect with the charge-discharge control unit (300), after anode is connect with the cathode of the 4th diode D4
It is connect with total anode of external load or charge power supply.
4. charge and discharge quick seamless handoff system according to claim 1, which is characterized in that said supply unit (400)
Including the 5th diode D5, the 6th diode D6, double-pole switch K3 and DC/DC power supply changeover device, the DC/DC power supply changeover devices
First input end said supply unit is used as after double-pole switch K3 described in sequential series and the 5th diode D5 successively
(400) first input end, the second input terminal are made after double-pole switch K3 described in sequential series and the 6th diode D6 successively
For the second input terminal of said supply unit (400), first output terminal of first output terminal as said supply unit (400),
Second output terminal of the second output terminal as said supply unit (400).
5. charge and discharge quick seamless handoff system according to claim 1, which is characterized in that the display unit (500)
Including the 7th diode D7, the 8th diode D8 and the 9th diode D9, the cathode of the 7th diode D7 respectively with it is described
Output as the display unit (500) after the cathode of 8th diode D8 is connected with the cathode of the 9th diode D9
End, first input end of the anode as the display unit (500)；
Second input terminal of the anode of the 8th diode D8 as the display unit (500)；
Third input terminal of the anode of the 9th diode D9 as the display unit (500).
6. charge and discharge quick seamless handoff system according to claim 1, which is characterized in that further include current divider F1, institute
The one end for stating current divider F1 is connect with total negative terminal of the battery pack (100), the other end and external load or charge power supply
Total negative terminal connection, the current divider F1 are also connect by current acquisition line with the battery management unit (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711477733.4A CN108258754A (en) | 2017-12-29 | 2017-12-29 | A kind of charge and discharge quick seamless handoff system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711477733.4A CN108258754A (en) | 2017-12-29 | 2017-12-29 | A kind of charge and discharge quick seamless handoff system |
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| CN108258754A true CN108258754A (en) | 2018-07-06 |
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ID=62724660
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| CN201711477733.4A Pending CN108258754A (en) | 2017-12-29 | 2017-12-29 | A kind of charge and discharge quick seamless handoff system |
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| CN109842203A (en) * | 2019-01-25 | 2019-06-04 | 格林美股份有限公司 | A kind of ups power management system |
| CN112165156A (en) * | 2020-09-23 | 2021-01-01 | 深圳市拓邦锂电池有限公司 | Charging/discharging device, battery system, charging/discharging control method, and storage medium |
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Application publication date: 20180706 |