CN109713757A - Group-wise switchs equalizing circuit - Google Patents
Group-wise switchs equalizing circuit Download PDFInfo
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- CN109713757A CN109713757A CN201910087450.1A CN201910087450A CN109713757A CN 109713757 A CN109713757 A CN 109713757A CN 201910087450 A CN201910087450 A CN 201910087450A CN 109713757 A CN109713757 A CN 109713757A
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- switch
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- cascade port
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of group-wise switch equalizing circuit, including the group string being made of multiple transmitting balanced units, each transmitting balanced unit includes battery BA, switch K, switch S, switch N, switch P, both ends are the output plus terminal and charging anode B+ of entire group string after switch S is sequentially connected in series and connects, export negative terminal and charging negative terminal B-, each switch N, next group of cascade port negative terminal DN- and anode DN+ are drawn in both ends respectively after switch P is cascaded and connects, upper one group of cascade port negative terminal UP- and anode UP+, export negative terminal and charging negative terminal B-, next group of cascade port negative terminal DN- and next group of cascade port anode DN+ are located at the same side.The control signal of the switch of each group can be done direct-connected with steady-state signal, pulse width signal can also be adjusted to control, by to duty cycle modulated signal needed for different switches, the different electric current distribution of the bridging/parallel connection/equilibrium that can reach different, optimal bridging/parallel connection/equilibrium is completed with this, to reach efficient rapid large-current transmitting balanced energy.
Description
Technical field
The present invention relates to a kind of storage battery equalizing circuits more particularly to a kind of group-wise to switch equalizing circuit.
Background technique
Existing accumulator protecting equalizing circuit, by the switch control resistance or small switching regulator electricity that are connected in parallel on battery both ends
Source (step-up transformer or inductance) composition, either boosting transmitting or switch control resistance and capacitor array transmitting, equilibrium pass
The energy very little passed, current level only have hundred milliamperes to ampere levels, and equilibrium can be said to be available reluctantly when as charging, and when electric discharge is real
When dynamic equalization efficiency it is little；But in tens amperes of even several hundred amperes of high speed charge and discharge, even if stringent partial volume group string
Battery group, concatenated each inevitable performance of single battery have differences, with using the build-up properties in time also can be bad therewith
Change, these all can make the parameters such as tolerance become inconsistent, cause the energy of storage that cannot all discharge, more seriously, when one
The relatively low serious or internal resistance of a or several cell capabilities increased dramatically, and series connection group can only release energy by minimum capacity unit,
The big unit of capacity cannot drain completely, and when large current charge, earlier the battery of ample time is greater than due to charging current
Euqalizing current overcharges and will affect performance and service life, or even serious fever leads to fire.So a set of both can dynamically have in real time
Can selection access is detached from certain section battery participate in work, and can accomplish the real-time dynamic of tens A even more high current rank
Balanced, and the charge and discharge scheme that mutually can also freely transmit energy is of crucial importance.
Summary of the invention
The present invention is to solve the above problems of the existing technology, provide a kind of group-wise switch equalizing circuit, this hair
It is bright not need booster circuit, capacitor array is not needed yet, the energy of the biggish battery of capacity can be passed through switching simultaneously
The lesser battery of capacity is passed to, i.e., passes through switch directly parallel connection very simply by an adjacent section or a few section batteries
Extremely great-leap-forward equilibrium can be carried out in the battery being separated by, efficient rapid large-current balanced energy is realized with this.
The technical solution of the invention is as follows: a kind of group-wise switch equalizing circuit, including by multiple transmitting balanced units
The group string of composition, each transmitting balanced unit include battery BA, with the concatenated switch K of battery BA, be connected in parallel on the storage concatenated
The switch S of battery BA and the both ends switch K, both ends are entire after each switch S transmitted in balanced unit is sequentially connected in series and connects
Group string output plus terminal and charging anode B+, output negative terminal and charging negative terminal B-, the group-wise switch equalizing circuit further include with
Transmit that balanced unit quantity is identical and switch N correspondingly, both ends extraction is next after each switch N is cascaded and connects
Group cascade port negative terminal DN- and upper one group of cascade port negative terminal UP-, it further includes balanced with transmitting which, which switchs equalizing circuit,
Element number is identical and switch P correspondingly, extraction next group of cascade end in both ends after each switch P is cascaded and connects
Mouthful anode DN+ and upper one group of cascade port anode UP+, export negative terminal and charging negative terminal B-, next group of cascade port negative terminal DN- and
Next group of cascade port anode DN+ is located at the same side, and the upper end of the switch N is connected to the negative of the battery BA of corresponding unit
The lower end of pole, the switch P is connected to the anode of corresponding unit battery BA.
Further, described switch S, K, P, N are all made of metal-oxide-semiconductor, and control on-off by control unit.
Further, described switch S, P, N are using single metal-oxide-semiconductor, and the switch K is using double metal-oxide-semiconductors.
The beneficial effects of the present invention are:
The corresponding switch P and N of each group, for the channel selection switch that great-leap-forward transmitting is balanced, switch P be responsible for and upper one group in
Anode connection, switch N be responsible for is connect with the battery plus-negative plate in next group, and so on, so that it may if continuously concatenate
The cascade of dry group；The corresponding switch S and K of each group is detached from switch, every group of switch S for the balanced battery selection of great-leap-forward transmitting
Can be turned off with K, and open can only one it is open-minded, switch K be battery be detached from switch, switch S for disengaging group and upper the following group
Connection switch.The control signal of the switch of each group can be done direct-connected with steady-state signal, pulse width signal can also be adjusted to control, by giving
Duty cycle modulated signal needed for difference switch, so that it may the different electric current distribution of the bridging/parallel connection/equilibrium for reaching different, with
This completes optimal bridging/parallel connection/equilibrium, to reach efficient rapid large-current transmitting balanced energy.
Detailed description of the invention
Fig. 1 is circuit diagram of the invention；
Fig. 2 is the circuit diagram of transmitting balanced unit of the invention；
Fig. 3 is (X battery) of the invention complete balanced schematic diagram in parallel；
Fig. 4 is that wherein X unit of the invention is carried out with Unit 1 across balanced connection schematic diagram；
Fig. 5 is the circuit structure diagram that switch of the invention uses metal-oxide-semiconductor.
Specific embodiment
Below in conjunction with attached drawing, the present invention will be described in detail.
As shown in Figure 1 and Figure 2, the present invention includes the group string being made of multiple transmitting balanced units (total X), and transmitting is balanced
Unit 1 include battery BA1, with the concatenated switch K1 of battery BA1, be connected in parallel on the battery BA1 concatenated and the both ends switch K1
Switch S1, transmitting balanced unit 2 include battery BA2, with the concatenated switch K2 of battery BA2, be connected in parallel on the electric power storage concatenated
The switch S2 of pond BA2 and the both ends switch K2, transmitting balanced unit 3 include battery BA3, with the concatenated switch K3 of battery BA3,
Switch S3 ... the transmitting balanced unit X for being connected in parallel on the both ends battery BA3 and switch K3 of concatenation includes battery BAX and electric power storage
The concatenated switch KX of pond BAX, be connected in parallel on concatenation the both ends battery BAX and switch KX switch SX, it is each to transmit in balanced unit
Switch S1, S2, S3 ... SX be sequentially connected in series and connect after both ends be entire group string output plus terminal and charging anode B+, output
Negative terminal and charging negative terminal B-, group-wise switch equalizing circuit further include identical as transmitting balanced unit quantity and correspond
Switch N1, N2, N3 ... NX, switch N1, N2, N3 ... NX be cascaded and connect after to draw next group of cascade port negative at both ends
DN- and upper one group of cascade port negative terminal UP- is held, group-wise switch equalizing circuit further includes identical as transmitting balanced unit quantity
And both ends are drawn next after switch P1, P2, P3 ... PX correspondingly, switch P1, P2, P3 ... PX are cascaded and connect
Group cascade port anode DN+ and upper one group of cascade port anode UP+ exports negative terminal and charging negative terminal B-, next group of cascade port
Negative terminal DN- and next group of cascade port anode DN+ is located at the same side, and the upper end of switch N1, N2, N3 ... NX is connected to correspondence
The cathode of battery BA1, BA1, BA3 ... BAX of unit, the lower end of switch P1, P2, P3 ... PX are connected to corresponding unit storage
The anode of battery BA1, BA1, BA3 ... BAX.
UP+ and UP- be upward one group of cascade port, be cascaded to it is one group most upper after, can be vacant, DN+ and DN- are downward
It one group of cascade port can be vacant under being cascaded to most after upper one group.
The corresponding switch P of each group and switch N, for the channel selection switch that great-leap-forward transmitting is balanced, switch P is responsible for and upper one
Anode connection in group, N are responsible for connecting with the battery plus-negative plate in next group, and so on, so that it may if continuous concatenation
The cascade of dry group.
The corresponding switch S of each group and switch K is detached from switch, every group of switch S for the balanced battery selection of great-leap-forward transmitting
Can be turned off with switch K, and open can only one it is open-minded, switch K be battery be detached from switch, switch S for disengaging group and it is upper
The connection switch of the following group.
The control signal of the switch of each group can be done direct-connected with steady-state signal, pulse width signal can also be adjusted to control, by not
With duty cycle modulated signal needed for switch, so that it may the different electric current distribution of the bridging/parallel connection/equilibrium for reaching different, with this
Optimal bridging/parallel connection/equilibrium is completed to produce effects.
As shown in figure 3, switch P and switch N are all turned on, switch S and switch K are all off, make battery 1BA, 2BA,
3BA ..., XBA are in parallel, and each battery voltage is equal after equilibrium in this case.
As shown in figure 4, when battery 1BA and XBA (one of end voltage is higher, another end voltage is smaller) carry out across
When more transmitting, switch XS, switch 2N~XN and switch 1P~2P are connected by control unit, other switches are in disconnection shape
State, to realize the great-leap-forward energy transmission of battery 1BA and XBA.
As shown in figure 5, in the output plus terminal of entire group string and the anode B+ that charges, exporting and being gone here and there between negative terminal and charging negative terminal B-
Connection series connection farad capacitor C1, C2, C3 ... CN, to solve the electric current discontinuous problem in switching, and improves transient high-current
Performance.Switch S, P, N are using single metal-oxide-semiconductor, and the switch K is using double metal-oxide-semiconductors.Switch XK1 and XK2 two-way blocking-up in series/
Conducting switch, an equivalent switch, similar with this below, it is controlled that switch XS, XP, XN can use grid, and forward and reverse on-state hinders
It is worth the work of minimum characteristic two-way switch (such as metal-oxide-semiconductor does synchronous rectification current working mode), according to different demands, switch XS,
XP, XN can also become double metal-oxide-semiconductors series connection two-way blocking-up in series/conducting switch, and an equivalent switch completes different function
Energy.
The above is only specific embodiments of the present invention, are not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of group-wise switchs equalizing circuit, including the group string being made of multiple transmitting balanced units, it is characterized in that: each biography
Pass balanced unit include battery BA, with the concatenated switch K of battery BA, be connected in parallel on the battery BA concatenated and the both ends switch K
Switch S, both ends are the output plus terminal and fill that entire group is gone here and there after each switch S transmitted in balanced unit is sequentially connected in series and connects
Electric anode B+, output negative terminal and charging negative terminal B-, group-wise switch equalizing circuit further include and transmitting balanced unit quantity phase
With and switch N correspondingly, extraction next group of cascade port negative terminal DN- in both ends after each switch N is cascaded and connects
With upper one group of cascade port negative terminal UP-, the group-wise switch equalizing circuit further include with transmit balanced unit quantity it is identical and
One-to-one switch P, next group of cascade port anode DN+ and upper one is drawn at both ends after each switch P is cascaded and connects
Group cascade port anode UP+ exports negative terminal and charging negative terminal B-, next group of cascade port negative terminal DN- and next group of cascade port
Anode DN+ is located at the same side, and the upper end of the switch N is connected to the cathode of the battery BA of corresponding unit, under the switch P
End is connected to the anode of corresponding unit battery BA.
2. group-wise according to claim 1 switchs equalizing circuit, it is characterized in that: in the entire output plus terminal for organizing string and filling
Connect farad capacitor C1, C2, C3 ... CN between electric anode B+ and output negative terminal and charging negative terminal B-.
3. group-wise according to claim 1 or 2 switchs equalizing circuit, it is characterized in that: described switch S, K, P, N are all made of
Metal-oxide-semiconductor, and on-off is controlled by control unit.
4. group-wise according to claim 1 or 2 switchs equalizing circuit, it is characterized in that: described switch S, P, N are using single
Metal-oxide-semiconductor, the switch K is using double metal-oxide-semiconductors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910087450.1A CN109713757A (en) | 2019-01-29 | 2019-01-29 | Group-wise switchs equalizing circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910087450.1A CN109713757A (en) | 2019-01-29 | 2019-01-29 | Group-wise switchs equalizing circuit |
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| Publication Number | Publication Date |
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| CN109713757A true CN109713757A (en) | 2019-05-03 |
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| CN201910087450.1A Pending CN109713757A (en) | 2019-01-29 | 2019-01-29 | Group-wise switchs equalizing circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112644335A (en) * | 2020-12-23 | 2021-04-13 | 杭州电子科技大学 | Active equalizing charging device and method for power battery |
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2019
- 2019-01-29 CN CN201910087450.1A patent/CN109713757A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112644335A (en) * | 2020-12-23 | 2021-04-13 | 杭州电子科技大学 | Active equalizing charging device and method for power battery |
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