CN208479197U - Double cell packet loop charge-discharge system - Google Patents
Double cell packet loop charge-discharge system Download PDFInfo
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- CN208479197U CN208479197U CN201820340131.8U CN201820340131U CN208479197U CN 208479197 U CN208479197 U CN 208479197U CN 201820340131 U CN201820340131 U CN 201820340131U CN 208479197 U CN208479197 U CN 208479197U
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Abstract
The utility model relates to a kind of double cell packet loop charge-discharge systems.The system includes: the first battery pack；Second battery pack；First DC/DC converter, side are coupled with first battery pack, and the other side is coupled with positive and negative busbar；2nd DC/DC converter, side are coupled with second battery pack, and the other side is coupled with positive and negative busbar；And capacitor, it is connected across between positive and negative busbar.Double cell packet loop charge-discharge system according to the present utility model can save the testing time by the charge and discharge simultaneously of 2 battery packs, and the energy can reuse, and battery pack discharge energy is transferred to the battery pack for needing to charge.
Description
Technical field
The utility model relates to battery technology fields, more particularly to a kind of double cell of charge and discharge mutual between battery pack
Packet loop charge-discharge system.
Background technique
With the development of electric car, the electrokinetic cell system of electric car needs larger capacity battery, performance more excellent
Battery pack.Manufacturing process's later period in battery pack generating process needs to carry out charge-discharge test to battery pack, to be tested
Card.
However, current, the charging/discharging apparatus volume of battery pack is big and at high cost, and the dependence test expense of battery pack is unusual
Height, test period are long.
Utility model content
In view of the above problems, the utility model be intended to provide it is a kind of using 2 battery packs simultaneously charge and discharge to optimize the energy
Utilization rate double cell packet loop charge-discharge system.
The double cell packet loop charge-discharge system of the utility model characterized by comprising
First battery pack；
Second battery pack；
First DC/DC converter, side are coupled with first battery pack, and the other side is coupled with positive and negative busbar；
2nd DC/DC converter, side are coupled with second battery pack, and the other side is coupled with positive and negative busbar；And
Capacitor is connected across between the positive and negative busbar.
Optionally, further comprise:
First monitoring device is coupled with first battery pack, for monitor the voltage of first battery pack, electric current,
Capacity, energy and temperature and the charge and discharge that the first battery pack is controlled according to monitoring result；
Second monitoring device is coupled with second battery pack, for monitor the voltage of second battery pack, electric current,
Capacity, energy and the charge and discharge that the second battery pack is controlled according to monitoring result；And
Charger is coupled with first monitoring device and the second monitoring device, for first battery pack or
Second battery pack charges.
Optionally further comprise:
First relay is arranged between the charger and the first DC/DC converter；And
Second relay is arranged between the charger and the 2nd DC/DC converter.
Optionally, the first end and second end of the first DC/DC converter is connect with positive bus-bar, negative busbar respectively, institute
The third end and the 4th end for stating the first DC/DC converter are connect with positive terminal, the negative pole end of first battery pack respectively,
The first end and second end of the 2nd DC/DC converter is connect with positive bus-bar, negative busbar respectively, and described second
The third end and the 4th end of DC/DC converter are connect with positive terminal, the negative pole end of second battery pack respectively.
Optionally, further comprise:
Regulated power supply is separately connected with first relay and the second relay, for first relay and
Second relay provides driving voltage.
Optionally, further comprise:
Third monitoring device is coupled with the regulated power supply, for the voltage and output electricity of the regulated power supply to be arranged
Stream.
Optionally, further comprise:
4th monitoring device is coupled with the charger, for be arranged equipment voltage, the device current of the charger with
And equipment output power.
Optionally, further comprise:
5th monitoring device is coupled with the first DC/DC converter, for the first DC/DC converter to be arranged
Input and output voltage and electric current and for equipment voltage, device current and the equipment output work when monitoring charge and discharge in real time
Rate；And
6th monitoring device is coupled with the 2nd DC/DC converter, for the 2nd DC/DC converter to be arranged
Input and output voltage and electric current and for equipment voltage, device current and the equipment output work when monitoring charge and discharge in real time
Rate.
Optionally, the first DC/DC converter and the 2nd DC/DC converter are used to be arranged the end electricity of positive bus-bar
Pressure.
Optionally, the end voltage of positive bus-bar is arranged for the first DC/DC converter and the 2nd DC/DC converter
For the full piezoelectric voltage greater than first battery pack and the second battery pack.
As described above, in the double cell packet loop charge-discharge system of the utility model, when in order to realize that both end voltage is consistent,
Can not energy conversion the problem of, using shared bus, the mode for raising bus end voltage realizes that energy is converted.Moreover, can be real
When monitoring battery pack charge and discharge process in voltage, electric current, temperature, capacity, the parameters such as energy.
The advantages of double cell packet loop charge-discharge system of the utility model, is as follows: small and exquisite, be moved easily；2 battery packs
The testing time is saved in charge and discharge simultaneously；Energy recycling, battery pack discharge energy are transferred to the battery pack for needing to charge；With
And can whole process be monitored.
Detailed description of the invention
Fig. 1 is the circuit structure figure for indicating the utility model double cell packet loop charge-discharge system.
Specific embodiment
What is be described below is some in multiple embodiments of the utility model, it is desirable to provide to the basic of the utility model
Understand.It is not intended to the crucial or conclusive element of confirmation the utility model or limits scope of the claimed.
To keep the purpose of this utility model, technical solution and advantage clearer, with reference to the accompanying drawing to the utility model
It is described in further detail.
Fig. 1 is the circuit structure figure for indicating the utility model double cell packet loop charge-discharge system.
As shown in Figure 1, the double cell packet loop charge-discharge system of one embodiment of the utility model includes: the first battery pack
110, the second battery pack 120, the first DC/DC converter 210, the 2nd DC/DC converter 220, capacitor 300, the first relay
410, the second relay 420, charger 500, regulated power supply 600, the first monitoring device 710 and the second monitoring device 720.
Wherein, in order to realize double cell charge and discharge simultaneously, save the testing time, the double cell packet loop of the utility model is filled
Discharge system includes at least: the first battery pack 110, the second battery pack 120, the first DC/DC converter 210, the 2nd DC/DC conversion
Device 220 and capacitor 300.
Then, these circuit blocks and its mutual connection relationship are illustrated.
The side of first DC/DC converter 210 is coupled with the first battery pack 110, and the other side is coupled with positive and negative busbar, the
The side of two DC/DC converters 220 is coupled with the second battery pack 120, and the other side is coupled with positive and negative busbar.First DC/DC turns
Parallel operation 210 and the 2nd DC/DC converter 220 be DC/DC Bidirectional up-down pressure converter.
Specifically, the first end A1 of the first DC/DC converter 210 pass through positive bus-bar and the 2nd DC/DC converter 220 the
One end B1 connection, the second end A2 of the first DC/DC converter 210 pass through the second end of negative busbar and the 2nd DC/DC converter 220
B2 connection.
On the other hand, the third end A3 of the first DC/DC converter 210 is connect with the positive terminal D1 of the first battery pack 110, the
The third end A4 of one DC/DC converter 210 is connect with the negative pole end D2 of the first battery pack 110, the 2nd DC/DC converter 220
Third end B3 is connect with the positive terminal E1 of the second battery pack 220, the third end B4 and the second battery of the 2nd DC/DC converter 220
The negative pole end E2 connection of packet 210.
Bridging has capacitor 300 between positive bus-bar and negative busbar, it may also be said to the of the first DC/DC converter 210
Bridging has capacitor 300 between two end A2 and the first end B1 of the 2nd DC/DC converter 21.The effect of capacitor 300 is savings
Energy, pressure stabilizing.
The setting of first relay 410 is between the 210 of charger 500 and the first DC/DC converter, the second relay
420 are arranged between charger 500 and the 2nd DC/DC converter 220.
First monitoring device 710 is coupled to monitor the electricity of first battery pack 110 with first battery pack 110
Pressure, electric current, capacity, energy and temperature and the charge and discharge that the first battery pack 110 is controlled according to monitoring result；
Second monitoring device 720 is coupled with second battery pack 120 and for monitoring second battery pack 120
Voltage, electric current, capacity, energy and according to monitoring result control the second battery pack 120 charge and discharge；And
Charger 500 is coupled with the first monitoring device 710 and the second monitoring device 720, for the first battery pack 110
Or second battery pack 120 charge.
Specifically, the first battery pack 110 of full electricity is discharged to positive and negative busbar, positive and negative mother by the first DC/DC converter 210
Line is charged by the 2nd DC/DC converter 220 to the second battery pack 120, and above-mentioned movement is repeated, until the first monitoring
Device 710 or the second monitoring device 720 monitor one of battery inclusion quantity, and lower than defined threshold, (such as capacitor is lower than low
It is here only that a numerical value is illustrated to defined threshold, those skilled in the art may be set according to actual conditions in 80%
The threshold value) in the case where, then electricity is mended to the battery pack by charger 500.Wherein, if the capacity of the first battery pack 110 is lower than
In the case where defined threshold, then the closure of relay 410 mends electricity to the first battery pack 110 by charger 500, if the first battery pack
In the case that 120 capacity is lower than defined threshold, then the closure of relay 420 mends electricity to the second battery pack 120 by charger 500.
Regulated power supply 600 is separately connected with the first relay 410 and the second relay 420, is used for the first relay 410
There is provided driving voltage respectively with the second relay 420 to control the open and close of relay.
The end voltage of positive bus-bar can also be arranged in first DC/DC converter 210 and the 2nd DC/DC converter 220, at this
In embodiment, the end voltage of positive bus-bar is set greater than to the full electricity electricity of the first battery pack 110 and the second battery pack 120
Pressure, as an example, such as is set as 500V.
As more transformation embodiments, additionally it is possible to following multiple monitoring devices (not shown) further be arranged.
For example, third monitoring device 730 is further arranged, coupled with the regulated power supply 600, for the pressure stabilizing to be arranged
The voltage and output electric current of power supply 600.
Further the 4th monitoring device 740 of setting, couples with the charger 500, for the charger 500 to be arranged
Equipment voltage, device current and equipment output power.
Further setting: the 5th monitoring device 750 is coupled with the first DC/DC converter 210, described for being arranged
The input and output voltage and electric current of first DC/DC converter 210 and for monitor charge and discharge in real time when equipment voltage, set
Standby electric current and equipment output power；And
6th monitoring device 760 is coupled with the 2nd DC/DC converter 220, is turned for the 2nd DC/DC to be arranged
The input and output voltage and electric current of parallel operation 220 and for when monitoring charge and discharge in real time equipment voltage, device current and
Equipment output power.
As described above, in the double cell packet loop charge-discharge system of the utility model, when in order to realize that both end voltage is consistent,
Can not energy conversion the problem of, using shared bus, the mode for raising bus end voltage realizes that energy is converted.Moreover, can be real
When monitoring battery pack charge and discharge process in voltage, electric current, temperature, capacity, the parameters such as energy.
The advantages of double cell packet loop charge-discharge system of the utility model, is as follows: small and exquisite, be moved easily；2 battery packs
The testing time is saved in charge and discharge simultaneously；Energy recycling, battery pack discharge energy are transferred to the battery pack for needing to charge；With
And can whole process be monitored.
Each specific embodiment of the double cell packet loop charge-discharge system of the utility model has been carried out specifically above
Description.Finally it should be noted that above each specific embodiment is only to illustrate the technical solution of the utility model rather than right
It is limited.Although the utility model is described in detail referring to above-mentioned specific embodiment, this field it is common
It will be appreciated by the skilled person that specific implementation of the utility model can still be modified or to some technical characteristics into
Row equivalent replacement, and under the spirit for not departing from the technical solution of the utility model, it should all cover and be requested in the utility model
In the technical proposal scope of protection.
Claims (10)
1. a kind of double cell packet loop charge-discharge system characterized by comprising
First battery pack；
Second battery pack；
First DC/DC converter, side are coupled with first battery pack, and the other side is coupled with positive and negative busbar；
2nd DC/DC converter, side are coupled with second battery pack, and the other side is coupled with positive and negative busbar；And
Capacitor is connected across between the positive and negative busbar.
2. double cell packet loop charge-discharge system as described in claim 1, which is characterized in that further comprise:
First monitoring device is coupled with first battery pack, for monitor the voltage of first battery pack, electric current, capacity,
Energy and temperature and the charge and discharge that the first battery pack is controlled according to monitoring result；
Second monitoring device is coupled with second battery pack, for monitor the voltage of second battery pack, electric current, capacity,
Energy and the charge and discharge that the second battery pack is controlled according to monitoring result；And
Charger is coupled with first monitoring device and the second monitoring device, for first battery pack or described
Second battery pack charges.
3. double cell packet loop charge-discharge system as claimed in claim 2, which is characterized in that further comprise:
First relay is arranged between the charger and the first DC/DC converter；And
Second relay is arranged between the charger and the 2nd DC/DC converter.
4. double cell packet loop charge-discharge system as described in claim 1, which is characterized in that
The first end and second end of the first DC/DC converter is connect with positive bus-bar, negative busbar respectively, the first DC/DC
The third end and the 4th end of converter are connect with positive terminal, the negative pole end of first battery pack respectively,
The first end and second end of the 2nd DC/DC converter is connect with positive bus-bar, negative busbar respectively, the 2nd DC/DC
The third end and the 4th end of converter are connect with positive terminal, the negative pole end of second battery pack respectively.
5. double cell packet loop charge-discharge system as claimed in claim 3, which is characterized in that further comprise:
Regulated power supply is separately connected with first relay and the second relay, is used for first relay and second
Relay provides driving voltage.
6. double cell packet loop charge-discharge system as claimed in claim 5, which is characterized in that further comprise:
Third monitoring device is coupled with the regulated power supply, for the voltage and output electric current of the regulated power supply to be arranged.
7. double cell packet loop charge-discharge system as claimed in claim 2, which is characterized in that further comprise:
4th monitoring device is coupled with the charger, for the equipment voltage of the charger, device current to be arranged and sets
Standby output power.
8. double cell packet loop charge-discharge system as described in claim 1, which is characterized in that further comprise:
5th monitoring device is coupled with the first DC/DC converter, for the input of the first DC/DC converter to be arranged
Output voltage and electric current and for equipment voltage, device current and the equipment output power when monitoring charge and discharge in real time；
And
6th monitoring device is coupled with the 2nd DC/DC converter, for the input of the 2nd DC/DC converter to be arranged
Output voltage and electric current and for equipment voltage, device current and the equipment output power when monitoring charge and discharge in real time.
9. double cell packet loop charge-discharge system as described in claim 1, which is characterized in that
The first DC/DC converter and the 2nd DC/DC converter are used to be arranged the end voltage of positive bus-bar.
10. double cell packet loop charge-discharge system as described in claim 1, which is characterized in that
The end voltage of positive bus-bar is set greater than described by the first DC/DC converter and the 2nd DC/DC converter
The full piezoelectric voltage of first battery pack and the second battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820340131.8U CN208479197U (en) | 2018-03-13 | 2018-03-13 | Double cell packet loop charge-discharge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820340131.8U CN208479197U (en) | 2018-03-13 | 2018-03-13 | Double cell packet loop charge-discharge system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208479197U true CN208479197U (en) | 2019-02-05 |
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ID=65206980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820340131.8U Active CN208479197U (en) | 2018-03-13 | 2018-03-13 | Double cell packet loop charge-discharge system |
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| Country | Link |
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| CN (1) | CN208479197U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI809932B (en) * | 2022-06-16 | 2023-07-21 | 國立臺灣科技大學 | Battery state diagnosis system and diagnosis method using the same |
-
2018
- 2018-03-13 CN CN201820340131.8U patent/CN208479197U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI809932B (en) * | 2022-06-16 | 2023-07-21 | 國立臺灣科技大學 | Battery state diagnosis system and diagnosis method using the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200811 Address after: Susong Road West and Shenzhen Road North, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Weilai (Anhui) Holding Co., Ltd Address before: China Hong Kong Patentee before: NIO NEXTEV Ltd. |