CN107546798A - N secondary cell series connection and charge and discharge electrical switching device in parallel - Google Patents
N secondary cell series connection and charge and discharge electrical switching device in parallel Download PDFInfo
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- CN107546798A CN107546798A CN201710749603.5A CN201710749603A CN107546798A CN 107546798 A CN107546798 A CN 107546798A CN 201710749603 A CN201710749603 A CN 201710749603A CN 107546798 A CN107546798 A CN 107546798A
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Abstract
The present invention relates to n secondary cell series connection and charge and discharge electrical switching device in parallel.Change control device（1）Control linked switch（K11、K12、…、K1n）With switch KAN secondary cell of conversion it is connected in series or in parallel.By to all secondary battery voltage parameter acquisitions, monitoring; it is determined that series connection constant-current charge is converted into the conversion opportunity of constant-voltage charge in parallel and changed; reach the effect to secondary cell series connection constant current quick charge, constant pressure equalizaing charge in parallel, and protection during to secondary cell discharged in series.And the diode of secondary cell series connection effectively prevents the electric current of generation shunt voltage difference between secondary cell.The time difference lighted and extinguished between each group light emitting diode can make a preliminary judgement to the electrical parameter between n monomer secondary cell in secondary battery.Particularly to monomer serondary lithium battery, it solve thes problems, such as that the charge and discharge in monomer serondary lithium battery group are inconsistent, the security of monomer serondary lithium battery group, life-span is lifted.
Description
Technical field
The present invention relates to n charging/discharging of secondary cell technology.
Background technology
Certain performance difference be present in same kind of same specification monomer secondary cell.In its series-connection charge-discharge process
In, the performance difference between them quickly increases with the increase of discharge and recharge number, and its harm to secondary battery is very big.
Existing charge and discharge power technology simply improve property solve the problem, it is difficult to ensure secondary battery safety and energy store put fill
Distribution is waved, the series connection of particularly multiple secondary single lithium batteries.
The content of the invention
A kind of n secondary cell series connection is provided it is an object of the invention to solve the above problems and discharge and recharge in parallel turns
Changing device.To realize the purpose, the present invention is achieved through the following technical solutions.
The present invention includes n secondary cell, n switch, n diode, n diode and conversion control device, and n is nature
Number, wherein：
The positive pole and switch K of first secondary cellACommon terminal, cathode output end electrical connection, normally closed terminal and constant current fill
Electric terminal electrically connects；The individual common terminals of n-1 of the positive pole and n switch of n-1 secondary cell electrically connect one to one, it
The common terminal and common negative pole charging terminal, cathode output end electrical connection, its normally closed terminal and n secondary cell of n-th of switch
Negative pole electrically connect one to one；The negative pole of n diode and the positive pole of n secondary cell electrically connect one to one, and its n just
Electrically connected extremely after parallel connection with constant-voltage charge terminal；The positive pole of n diode and the negative pole of n secondary cell are electrically connected one to one
Connect, the normally opened terminal after its n negative pole parallel connection with n-th of switch electrically connects；
The n secondary cell that the be electrically connected to form electrical connection in parallel of the n diode, n diode and n secondary cell, its
Prevent to produce the poor electric current of shunt voltage between i-th of secondary cell and n secondary cell；The n secondary cell and n are opened
The n secondary cell that be electrically connected to form closed is electrically connected in series；
N switch and switch the K linkages, conversion control device control it to n secondary cell series connection and conversion in parallel；
During the series connection of n secondary cell, be constant-current charge, during n secondary cell parallel connection, be constant-voltage charge.
According to above-mentioned technical proposal, series connection and conversion equipment in parallel also can by relay group, multistage universal seclector,
Multi-pole knife switch, multipole rotation knife-like switch, multipole rotary contact switch, plugs and sockets group, toggle switch group etc. are formed.Conversion behaviour
Control device also can by manually, electrically, pneumatically, the part such as hydraulic pressure forms；Its switching foundation is substantially the same, is not discussed herein.
The common terminal of n change-over switch and the positive pole of n secondary cell electrically connect one to one, its first common end
Son and cathode output end electrical connection, after its normally opened terminal parallel connection and the electrical connection of constant-voltage charge terminal, its first normally closed terminal and
Constant-current charge terminal（3）Electrical connection；The negative pole of the n common terminal switched and the n secondary cell electrically connects one to one,
Second to n-th normally closed terminal of its first to (n-1)th common terminal and the n change-over switch is electrically connected one to one
Connect, after its n-th normally opened terminal and its n-th electrical connection of common terminal, its normally opened terminal parallel connection and altogether negative pole charging terminal
（5）, cathode output end electrical connection.
Closed when the common terminal in the n change-over switch and normally closed terminal correspond, being total in the n switch
When the sub and normally opened terminal in go side corresponds disconnection, the n secondary cell is to be electrically connected in series.When the n change-over switch
In common terminal and normally closed terminal correspond disconnect and with normally opened terminal correspond close, it is described n switch in
When common terminal and normally opened terminal correspond normally opened closure；The n secondary cell electrically connects to be in parallel.
N source electrode of n low on-resistance power FET and the negative pole of n secondary cell electrically connect one to one,
The positive pole of its first to n-1 drain electrode and second to n secondary cell electrically connects one to one, its n-th drain electrode and switch
KBNormally closed terminal, electrical connection, the n grid and source electrode of n low on-resistance power FET and a pair of n control circuit
One ground electrically connects；Switch KBCommon terminal and negative pole charging terminal, cathode output end electrical connection altogether, the negative pole of n diode
Electrically connected after parallel connection with normally opened terminal；Switch KAWith switch KBLinkage.
Diode cathode and the electrical connection of contravariant transformer secondary coil one end, its other end and resistance, voltage-stabiliser tube positive pole, the
The source electrode electrical connection of i FET, diode cathode, resistance, the grid of regulator tube negative and i-th of FET are electrically connected
Connect；It forms i-th of control circuit；When transformer has pulse current, i-th of FET conducting；No pulse
During electric current, cut-off.
Light emitting diode in voltage-stabiliser tube, resistance, photoelectrical coupler is sequentially connected in series electrical connection, voltage-stabiliser tube, resistance, photoelectricity coupling
Light emitting diode in clutch is sequentially connected in series electrical connection；The other end and i-th of anode of secondary battery electricity of voltage-stabiliser tube and voltage-stabiliser tube
Connect, the light emitting diode other end and i-th of secondary battery negative pole electrical connection in photoelectrical coupler and photoelectrical coupler；Electricity
Resistance, photoelectrical coupler and resistant series electrical connection, resistance, photoelectrical coupler and resistance are sequentially connected in series electrical connection, resistance and resistance
The other end and first interface electrical connection, resistance and the resistance other end and the electrical connection of the 4th interface；Light emitting diode one end and photoelectricity
The electrical connection node of coupler and resistance electrically connects, the other end and the electrical connection of the 3rd interface；Light emitting diode one end and photoelectricity coupling
The electrical connection node of clutch and resistance electrically connects, the other end and second interface electrical connection；The voltage of voltage regulation of voltage-stabiliser tube is not less than i-th
The discharge voltage lower limit of individual secondary cell, the voltage of voltage regulation of voltage-stabiliser tube are not more than the charging voltage upper limit of i-th of secondary cell.On
State i-th of secondary cell and sample circuit forms corresponding i-th of assembled unit.
The positive pole and the input of three terminal regulator of first secondary cell, the normally opened terminal of two gear switch, positive pole output
End, output end+V0Electrical connection electrical connection, common terminal and electromagnet coil one end electrical connection of two gear switch；N first interface
Output end after parallel connection electrical connection with three terminal regulator electrically connects；After the electrical connection in parallel of n the 4th interfaces and three terminal regulator
Earth terminal, transistor emitter, resistance one end, cathode output end, negative pole, the insulated gate bipolar crystal of n-th secondary cell
The emitter stage and voltage-stabiliser tube of pipe, the electrical connection of resistance one end；Electrically connected after the electrical connection in parallel of n the 3rd interfaces with resistance, n second
Electrically connected after interface electrical connection in parallel with transistor base, the resistance other end；Transistor collector and the electromagnet coil other end
Electrical connection；The other end electrical connection of the grid and resistance, voltage-stabiliser tube, resistance of insulated gate bipolar transistor, insulated gate bipolar
The colelctor electrode and output end-V of transistor0Electrical connection.
During assembled unit serial connection charge, two gear switch are first closed；In charging process, in assembled unit, i-th of assembled unit
When charging voltage is close to its charging voltage upper limit, corresponding light emitting diode is lighted, triode ON, electromagnetic actuation, conversion
Device is converted to status of electrically connecting in parallel, and serial connection charge terminates and switchs to charged in parallel process；During charged in parallel, own
When the charging voltage of assembled unit is close to its charging voltage upper limit, light emitting diode is lighted entirely.
Charger and constant-current charge terminal, the electrical connection of constant-voltage charge terminal, two gear switch of disconnection are cut off, electromagnet release, is turned
Changing device is converted back to the state of being electrically connected in series；During assembled unit discharged in series, when the voltage of i-th of assembled unit connects
Its nearly discharge voltage lower limit, corresponding light emitting diode extinguish, insulated gate bipolar transistor cut-off, assembled unit discharged in series
Terminate.
During serial connection charge, the charging voltage+V of constant-current charge terminal1In charging voltage during less than n secondary cell series connection
Limit；During charged in parallel, the charging voltage+V of constant-voltage charge terminal2Charging voltage upper limit during less than secondary cell parallel connection with two times
Diode drop sum.
Put out when the time difference lighted during constant-current charge in parallel between light emitting diode and discharged in series between light emitting diode
The time difference gone out, the judge of electrical property can be made on predetermined charging limitation voltage to n secondary cell；During discharged in series,
The time difference extinguished between light emitting diode, electrical property can be made on predetermined electric discharge limitation voltage to n secondary cell
Judge；Electrical property between the time difference smaller secondary cell light, extinguished is closer.
Each secondary cell is by the electrical connection in parallel of at least one secondary cell.
Each secondary cell is electrically connected in series by least one secondary cell.
The tap of transformer secondary coil is connected to constant-voltage charge terminal, the one end of secondary coil 8 through over commutation, constant voltage circuit
Constant-current charge terminal is connected to through over commutation, constant-current circuit, diode, the secondary coil other end and common negative pole charging terminal are electrically connected
Connect；The voltage of constant-current charge terminal is less than charging voltage upper limit when secondary cell is connected, and the voltage of constant-voltage charge terminal is less than
The charging voltage upper limit and two times of diode drop sums during secondary cell parallel connection.
By to all secondary battery voltage parameter acquisitions, monitoring, it is determined that series connection constant-current charge is converted into constant pressure in parallel and filled
The conversion opportunity of electricity is simultaneously changed, and reaches the constant current quick charge to secondary cell series connection, the effect of constant pressure equalizaing charge in parallel
Fruit.To the collection of all voltage parameters, monitoring, control, reach protection during to secondary cell discharged in series.Particularly to monomer two
Secondary lithium battery, it solve thes problems, such as that the charge and discharge in monomer serondary lithium battery group are inconsistent, makes monomer serondary lithium battery
The security of group, life-span are lifted.The time difference lighted and extinguished between each light emitting diode can be to monomer serondary lithium battery
Electrical parameter in group between n monomer serondary lithium battery judges.The quantity that light emitting diode is lighted and extinguished can be to monomer
The state that serondary lithium battery group stores electric discharge energy judges.Also, provide one to lift the application of monomer serondary lithium battery group
The basic platform of kind battery management system.
Brief description of the drawings
Fig. 1 is n secondary cell series connection of the present invention and charge and discharge electrical switching device schematic diagram in parallel.
Fig. 2 is the series connection of n secondary cell and charge and discharge electrical switching device in parallel that n change-over switch and n switch are formed
Schematic diagram.
Fig. 3 is that the n secondary cell series connection that insulated gate bipolar transistor is formed and charge and discharge electrical switching device in parallel are former
Reason figure.
Fig. 4 is that i-th of insulated gate bipolar transistor BG is controlled in Fig. 3i, i=1,2 ..., n schematic diagram.
Fig. 5 is the group of i-th of secondary cell and sample circuit in secondary cell series connection of the present invention and conversion equipment in parallel
Close unit schematic diagram.
Fig. 6 is n secondary cell series connection of the present invention and charge and discharge electrical switching device application principle figure in parallel.
Fig. 7 is the charging principle figure of n secondary cell series connection of the present invention and charge and discharge electrical switching device in parallel.
Same mark represents identical part in figure.
The embodiment of the present invention is described below in conjunction with the accompanying drawings.
Embodiment one
As shown in Figure 1：
First secondary cell C1Positive pole and switch KACommon terminal ZA1, cathode output end 2 electrically connect, normally closed terminal ZA2With
Constant-current charge terminal 3 electrically connects；N-1 secondary cell Ci, i=2 ..., n positive pole and n switch K1i, i=1,2 ..., n
N-1 common terminal Z11、Z12、…、Z1（N-1）Electrical connection one to one, its n-th common terminal Z switched1nFilled with common negative pole
Electric terminal 5, cathode output end 6 electrically connect, its normally closed terminal Z31、Z32、…、Z3nWith n secondary cell Ci, i=1,2 ..., n
Negative pole electrically connects one to one；N diode DAi, i=1,2 ..., n negative pole and n secondary cell Ci, i=1,2 ..., n just
Pole electrically connects one to one, is electrically connected after its n positive pole parallel connection with constant-voltage charge terminal 4；N diode DBi, i=1,2 ..., n
Positive pole and n secondary cell Ci, i=1,2 ..., n negative pole electrically connect one to one, after its n negative pole parallel connection and open for n-th
The normally opened terminal Z closed3nElectrical connection；
The n diode DAi, i=1,2 ..., n, n diode DBi, i=1,2 ..., n and n secondary cell Ci, i=1,
2nd ..., the n n secondary cell C that be electrically connected to formi, i=1,2 ..., n electrical connections in parallel, it prevents i-th of secondary cell CiAnd n
Individual secondary cell Ci, i=1,2 ..., the electric current of shunt voltage difference is produced between n；The n secondary cell Ci, i=1,2 ..., n and
N switch K1i, i=1,2 ..., the n n secondary cell C that be electrically connected to formi, i=1,2 ..., n is electrically connected in series；
The n switch K1i, i=1,2 ..., n and switch K linkage, conversion control device 1 control its to n secondary cell Ci, i=1,
2nd ..., the conversion of n series connection and parallel connection；
N secondary cell Ci, i=1,2 ..., n series connection when, be constant-current charge, n secondary cell Ci, i=1,2 ..., n parallel connections when,
For constant-voltage charge.
Embodiment two
As shown in Figure 2：
N change-over switch K1i, i=1,2 ..., n common terminal Z11、Z12、…、Z1nWith n secondary pond Ci, i=1,2 ..., n
Positive pole electrically connects one to one, its first common terminal Z11Electrically connected with cathode output end 2, its normally opened terminal Z41、Z42、…、
Z4nElectrically connected after parallel connection with constant-voltage charge terminal 4, its first normally closed terminal Z31Electrically connected with constant-current charge terminal 3；N are opened
Close K2i, i=1,2 ..., n common terminal Z21、Z22、…、Z2nWith the n secondary cell Ci, i=1,2 ..., a pair of n negative pole
One ground electrically connects, its first to (n-1)th common terminal Z21、Z22、…、Z2（n-1）With the n change-over switch K1i, i=1,
2nd ..., second to n-th of n normally closed terminal Z32、…、Z3nElectrical connection, its n-th normally opened terminal Z one to one5nWith its n-th
Individual common terminal Z2nElectrical connection, its normally opened terminal Z51、Z52、…、Z5nAfter parallel connection and altogether negative pole charging terminal 5, cathode output end 6
Electrical connection.
As the n change-over switch K1i, i=1,2 ..., the common terminal Z in n11、Z12、…、Z1nWith normally closed terminal Z31、
Z32、…、Z3nCorrespond closure, the n switch（K2i, i=1,2 ..., n）In common terminal Z21、Z22、…、Z2nWith it is normal
Beginning sub- Z51、Z52、…、Z5nWhen corresponding disconnection, the n secondary cell Ci, i=1,2 ..., n is is electrically connected in series.When
The n change-over switch K2i, i=1,2 ..., the common terminal Z in n11、Z12、…、Z1nWith normally closed terminal Z31、Z32、…、Z3nOne
One it is corresponding disconnect and with normally opened terminal Z41、Z42、…、Z4nCorrespond closure, the n switch K2i, i=1,2 ..., in n
Common terminal Z21、Z22、…、Z2nWith normally opened terminal Z51、Z52、…、Z5nWhen corresponding normally opened closure；The n secondary electricity
Pond Ci, i=1,2 ..., n electrically connects to be in parallel.
Embodiment three
As shown in Figure 3 and Figure 4：
N low on-resistance power FET BGi, i=1,2 ..., n n source electrode and n secondary cell Ci, i=1,2 ...,
N negative pole electrically connects one to one, its first to n-1 drain electrode and second to n secondary cell Ci, i=1,2 ..., n-1
Positive pole electrically connects one to one, its n-th drain electrode and switch KBNormally closed terminal ZB2, electrical connection, n low on-resistance power
FET BGi, i=1,2 ..., n n grid and source electrode and n control circuit KZ i, i=1,2 ..., n is electrically connected one to one
Connect；Switch KBCommon terminal ZB1Electrically connected with common negative pole charging terminal 5, cathode output end 6, n diode DBi, i=1,
2nd ..., after n negative pole parallel connection and normally opened terminal ZB3Electrical connection；Switch KAWith switch KBLinkage.
Diode cathode and the electrical connection of contravariant transformer secondary coil one end, its other end and resistance, voltage-stabiliser tube positive pole, the
I FET BGi, i=1,2 ..., the electrical connection of n source electrode, diode cathode, resistance, regulator tube negative and i-th of field-effect
Pipe BGi, i=1,2 ..., the electrical connection of n grid；It forms i-th of control circuit KZ i；When transformer has pulse electric
During stream, i-th of FET BGi, i=1,2 ..., n conducting；During no pulse electric current, cut-off.
Embodiment four
As shown in Figure 5 and Figure 6：
Light emitting diode in voltage-stabiliser tube W1, resistance R1, photoelectrical coupler N1 is sequentially connected in series electrical connection, voltage-stabiliser tube W2, resistance R2,
Light emitting diode in photoelectrical coupler N2 is sequentially connected in series electrical connection；The voltage-stabiliser tube W1 and voltage-stabiliser tube W2 other end and i-th two
Primary cell C i, i=1,2 ..., the electrical connection of n positive poles, the light emitting diode other end in photoelectrical coupler N1 and photoelectrical coupler N2
With i-th of secondary cell C i, i=1,2 ..., n negative poles electrical connection；Resistance R3, photoelectrical coupler N1 and resistance R6 are electrically connected in series,
Resistance R4, photoelectrical coupler N2 and resistance（R5 is sequentially connected in series electrical connection, resistance R3 and the resistance R4 other ends and first interface S1iElectricity
Connection, resistance R6 and the resistance R5 other ends and the 4th interface S4iElectrical connection；Light emitting diode L1 one end and photoelectrical coupler N1 with
Resistance R6 electrical connection node electrical connection, the other end and the 3rd interface S3iElectrical connection；Light emitting diode L2 one end and photoelectric coupling
Device N2 and resistance R5 electrical connection node electrically connects, the other end and second interface S2iElectrical connection；Voltage-stabiliser tube W1 voltage of voltage regulation is not
Less than i-th secondary cell C i, i=1,2 ..., n discharge voltage lower limit, voltage-stabiliser tube W2 voltage of voltage regulation is not more than i-th two
Primary cell C i, i=1,2 ..., the n charging voltage upper limit.Above-mentioned i-th of secondary cell C i, i=1,2 ..., n and sample circuit structure
Into corresponding i-th of assembled unit Di, i=1,2 ..., n.
First secondary cell C1Positive pole and three terminal regulator（W4）Input, two gear switch KCNormally opened terminal, just
Pole output end 2, output end+V0Electrical connection electrical connection, switchs KCCommon one end of terminal and electromagnet coil 101 electrical connection；N
First interface S11、S12..., S1nOutput end after parallel connection electrical connection with three terminal regulator W4 electrically connects；N the 4th interface S41、
S42..., S4nIt is defeated with three terminal regulator W4 earth terminal, triode TV1 emitter stages, resistance R7 one end, negative pole after parallel connection electrical connection
Go out end 6, n-th of secondary cell CnNegative pole, insulated gate bipolar transistor TV2 emitter stage and voltage-stabiliser tube W3, resistance R9 mono-
End electrical connection；N the 3rd interface S31、S32..., S3nElectrically connected after parallel connection electrical connection with resistance R8, n second interface S21、
S22..., S2nElectrically connected after parallel connection electrical connection with triode TV1 base stages, the resistance R7 other ends；Triode TV1 colelctor electrodes and electromagnetism
The other end of iron coil 101 electrically connects；Insulated gate bipolar transistor TV2 grid and resistance R8, voltage-stabiliser tube W3, resistance R9 it is another
One end electrically connects, insulated gate bipolar transistor TV2 colelctor electrode and output end-V0Electrical connection.
Assembled unit D1、D2、…、DnDuring serial connection charge, two gear switch K are first closedC；In charging process, assembled unit D1、
D2、…、DnIt is interior, i-th of assembled unit Di, i=1,2 ..., n charging voltages close to its charging voltage upper limit when, corresponding luminous two
Pole pipe L2i, i=1,2 ..., n light, triode TV1 conductings, electromagnetic actuation, conversion equipment 7 is converted to electrical connection shape in parallel
State, serial connection charge terminate and switch to charged in parallel process；During charged in parallel, all assembled unit D1、D2、…、DnFill
When piezoelectric voltage is close to its charging voltage upper limit, light emitting diode L2i, i=1,2 ..., n lights entirely.
Cut off charger and constant-current charge terminal 3, the electrical connection of constant-voltage charge terminal 4, two gear switch K of disconnectionC, electromagnet
Release, conversion equipment 7 are converted back to the state of being electrically connected in series；In assembled unit D1、D2、…、DnDuring discharged in series, when i-th
Individual assembled unit Di, i=1,2 ..., n voltage is close to its discharge voltage lower limit, corresponding light emitting diode L1i, i=1,2 ..., n
Extinguish, insulated gate bipolar transistor TV2 cut-offs, assembled unit D1、D2、…、DnDischarged in series terminates.
Embodiment five
During serial connection charge, the charging voltage+V of constant-current charge terminal 31Less than n secondary cell C i, i=1,2 ..., n series connection when
The charging voltage upper limit；During charged in parallel, the charging voltage+V of constant-voltage charge terminal 42Less than secondary cell C i, i=1,2 ..., n simultaneously
The charging voltage upper limit and two times of diode drop sums during connection.
Embodiment six
Light emitting diode L2 during constant-current charge in paralleli, i=1,2 ..., time difference for lighting between n and luminous two during discharged in series
Pole pipe L2i, i=1,2 ..., time difference for extinguishing between n, n secondary cell can be made on predetermined charging limitation voltage
The judge of electrical property；During discharged in series, light emitting diode L1i, i=1,2 ..., time difference for extinguishing between n, can be secondary to n
Battery makes the judge of electrical property on predetermined electric discharge limitation voltage；Between the time difference smaller secondary cell light, extinguished
Electrical property it is closer.
Embodiment seven
Each secondary cell C i, i=1,2 ..., n is by the electrical connection in parallel of at least one secondary cell.
Embodiment eight
Each secondary cell C i, i=1,2 ..., n is electrically connected in series by least one secondary cell.
Embodiment nine
As shown in Figure 7：
The tap 9 of transformer secondary coil 8 is connected to constant-voltage charge terminal 4, the one end of secondary coil 8 through over commutation, constant voltage circuit
Constant-current charge terminal 3, the altogether other end of secondary coil 8 and negative pole charging terminal are connected to through over commutation, constant-current circuit, diode 10
5 electrical connections；The voltage of constant-current charge terminal 3 is less than secondary cell C i, i=1,2 ..., n series connection when the charging voltage upper limit, constant pressure
The voltage of charging terminal 4 is less than secondary cell C i, i=1,2 ..., n parallel connections when the charging voltage upper limit and two times of diode drops
Sum.
Claims (9)
1. a kind of n secondary cell series connection and charge and discharge electrical switching device in parallel, it is characterised in that：
First secondary cell（C1）Positive pole and switch KACommon terminal（ZA1）, cathode output end（2）Electrical connection, normal-closed end
Son（ZA2）With constant-current charge terminal（3）Electrical connection；N-1 secondary cell（Ci, i=2 ..., n）Positive pole and n switch（K1i,
i=1、2、…、n）N-1 common terminals（Z11、Z12、…、Z1（N-1））One to one electrical connection, its n-th switch it is common
Terminal（Z1n）With common negative pole charging terminal（5）, cathode output end（6）Electrical connection, its normally closed terminal（Z31、Z32、…、Z3n）With n
Secondary cell（Ci, i=1,2 ..., n）Negative pole electrically connect one to one；N diode（DAi, i=1,2 ..., n）Negative pole and n
Individual secondary cell（Ci, i=1,2 ..., n）Positive pole electrically connect one to one, after its n positive pole parallel connection and constant-voltage charge terminal
（4）Electrical connection；N diode（DBi, i=1,2 ..., n）Positive pole and n secondary cell（Ci, i=1,2 ..., n）Negative pole one
To a ground electrically connect, after its n negative pole parallel connection and n-th switch normally opened terminal（Z3n）Electrical connection；The n diode
（DAi, i=1,2 ..., n）, n diode（DBi, i=1,2 ..., n）With n secondary cell（Ci, i=1,2 ..., n）Electrical connection
Form n secondary cell（Ci, i=1,2 ..., n）Parallel connection electrical connection, it prevents i-th of secondary cell（Ci）With n secondary cell
（Ci, i=1,2 ..., n）Between produce shunt voltage difference electric current；The n secondary cell（Ci, i=1,2 ..., n）Opened with n
Close（K1i, i=1,2 ..., n）The n secondary cell that be electrically connected to form（Ci, i=1,2 ..., n）It is electrically connected in series；The n switch
（K1i, i=1,2 ..., n）And switch K linkages, change control device（1）It is controlled to n secondary cell（Ci, i=1,2 ..., n）String
Connection or the conversion of parallel connection；N secondary cell（Ci, i=1,2 ..., n）During series connection, be constant-current charge, n secondary cell（Ci, i=1,
2、…、n）When in parallel, be constant-voltage charge.
2. n secondary cell series connection according to claim 1 and charge and discharge electrical switching device in parallel, it is characterised in that：
N change-over switch（K1i, i=1,2 ..., n）Common terminal（Z11、Z12、…、Z1n）With n secondary cell（Ci, i=1,
2、…、n）Positive pole electrically connect one to one, its first common terminal（Z11）And cathode output end（2）Electrical connection, its is normally opened
Terminal（Z41、Z42、…、Z4n）After parallel connection and constant-voltage charge terminal（4）Electrical connection, its first normally closed terminal（Z31）Filled with constant current
Electric terminal（3）Electrical connection；N switch（K2i, i=1,2 ..., n）Common terminal（Z21、Z22、…、Z2n）With the n secondary electricity
Pond（Ci, i=1,2 ..., n）Negative pole electrically connect one to one, its first to (n-1)th common terminal（Z21、Z22、…、
Z2（n-1））With the n change-over switch（K1i, i=1,2 ..., n）Second to n-th normally closed terminal（Z32、…、Z3n）A pair
The electrical connection of one ground, its n-th normally opened terminal（Z5n）With its n-th common terminal（Z2n）Electrical connection, its normally opened terminal（Z51、
Z52、…、Z5n）After parallel connection and altogether negative pole charging terminal（5）, cathode output end（6）Electrical connection；When the n change-over switch（K1i,
i=1、2、…、n）In common terminal（Z11、Z12、…、Z1n）With normally closed terminal（Z31、Z32、…、Z3n）Correspond closure, institute
State n switch（K2i, i=1,2 ..., n）In common terminal（Z21、Z22、…、Z2n）With normally opened terminal（Z51、Z52、…、Z5n）One
During one corresponding disconnection, the n secondary cell（Ci, i=1,2 ..., n）To be electrically connected in series；When the n change-over switch（K2i,
i=1、2、…、n）In common terminal（Z11、Z12、…、Z1n）With normally closed terminal（Z31、Z32、…、Z3n）Correspond and disconnect, simultaneously
And with normally opened terminal（Z41、Z42、…、Z4n）Correspond closure, the n switch（K2i, i=1,2 ..., n）In common terminal
（Z21、Z22、…、Z2n）With normally opened terminal（Z51、Z52、…、Z5n）When corresponding normally opened closure；The n secondary cell（Ci, i
=1、2、…、n）Electrically connected for parallel connection.
3. n secondary cell series connection according to claim 1 and charge and discharge electrical switching device in parallel, it is characterised in that：
N low on-resistance power FET（BGi, i=1,2 ..., n）N source electrode and n secondary cell（Ci, i=1,
2、…、n）Negative pole electrically connect one to one, its first to n-1 drain electrode and second to n secondary cell（Ci, i=1,
2nd ..., n-1）Positive pole electrically connect one to one, its n-th drain electrode and switch KBNormally closed terminal（ZB2）, electrical connection, n
Low on-resistance power FET（BGi, i=1,2 ..., n）N grid and source electrode and n control circuit（KZ i, i=1,
2、…、n）Electrically connect one to one；Switch KBCommon terminal（ZB1）With common negative pole charging terminal（5）, cathode output end（6）Electricity
Connection, n diode（DBi, i=1,2 ..., n）Negative pole parallel connection after and normally opened terminal（ZB3）Electrical connection；Switch KAWith switch KB
Linkage；Diode cathode and the electrical connection of contravariant transformer secondary coil one end, its other end and resistance, voltage-stabiliser tube positive pole, i-th
FET（BGi, i=1,2 ..., n）Source electrode electrical connection, diode cathode, resistance, regulator tube negative and i-th of field-effect
Pipe（BGi, i=1,2 ..., n）Grid electrical connection；It forms i-th of control circuit（KZ i）；When transformer has arteries and veins
When rushing electric current, i-th of FET（BGi, i=1,2 ..., n）Conducting；During no pulse electric current, cut-off.
4. the charge and discharge electrical switching device of the series connection of n secondary cell and parallel connection according to claim 1,2 or 3, its feature exist
In：Voltage-stabiliser tube（W1）, resistance（R1）, photoelectrical coupler（N1）In light emitting diode be sequentially connected in series electrical connection, voltage-stabiliser tube（W2）、
Resistance（R2）, photoelectrical coupler（N2）In light emitting diode be sequentially connected in series electrical connection；Voltage-stabiliser tube（W1）And voltage-stabiliser tube（W2）'s
The other end and i-th of secondary cell（C i, i=1,2 ..., n）Positive pole electrically connects, photoelectrical coupler（N1）And photoelectrical coupler（N2）
In the light emitting diode other end and i-th of secondary cell（C i, i=1,2 ..., n）Negative pole electrically connects；Resistance（R3）, photoelectricity coupling
Clutch（N1）And resistance（R6）It is electrically connected in series, resistance（R4）, photoelectrical coupler（N2）And resistance（R5）It is sequentially connected in series electrical connection,
Resistance（R3）And resistance（R4）The other end and first interface（S1i）Electrical connection, resistance（R6）And resistance（R5）The other end and the 4th connects
Mouthful（S4i）Electrical connection；Light emitting diode（L1）One end and photoelectrical coupler（N1）With resistance（R6）Electrical connection node electrical connection,
The other end and the 3rd interface（S3i）Electrical connection；Light emitting diode（L2）One end and photoelectrical coupler（N2）With resistance（R5）Be electrically connected
Connect node electrical connection, the other end and second interface（S2i）Electrical connection；Voltage-stabiliser tube（W1）Voltage of voltage regulation be not less than i-th two times electricity
Pond（C i, i=1,2 ..., n）Discharge voltage lower limit, voltage-stabiliser tube（W2）Voltage of voltage regulation be not more than i-th of secondary cell（C i, i
=1、2、…、n）The charging voltage upper limit；First secondary cell（C1）Positive pole and three terminal regulator（W4）Input, two
Gear switch（KC）Normally opened terminal, cathode output end（2）, output end+V0Electrical connection electrical connection, switch（KC）Common terminal and
Electromagnet coil（101）One end electrically connects；N first interface（S11、S12..., S1n）Parallel connection electrical connection after and three terminal regulator
（W4）Output end electrical connection；N the 4th interfaces（S41、S42..., S4n）Parallel connection electrical connection after and three terminal regulator（W4）Connect
Ground terminal, triode（TV1）Emitter stage, resistance（R7）One end, cathode output end（6）, n-th of secondary cell（Cn）Negative pole, absolutely
Edge grid bipolar transistor（TV2）Emitter stage and voltage-stabiliser tube（W3）, resistance（R9）One end electrically connects；N the 3rd interfaces（S31、
S32..., S3n）Parallel connection electrical connection after and resistance（R8）Electrical connection, n second interface（S21、S22..., S2n）After parallel connection electrical connection
And triode（TV1）Base stage, resistance（R7）The other end electrically connects；Triode（TV1）Colelctor electrode and electromagnet coil（101）It is another
End electrical connection；Insulated gate bipolar transistor（TV2）Grid and resistance（R8）, voltage-stabiliser tube（W3）, resistance（R9）The other end
Electrical connection, insulated gate bipolar transistor（TV2）Colelctor electrode and output end-V0Electrical connection.
5. the charge and discharge electrical switching device of the series connection of n secondary cell and parallel connection according to claim 1,2,3 or 4, its feature
It is：During serial connection charge, constant-current charge terminal（3）Charging voltage+V1Less than n secondary cell（C i, i=1,2 ..., n）String
Charging voltage upper limit during connection；During charged in parallel, constant-voltage charge terminal（4）Charging voltage+V2Less than secondary cell（C i, i=
1、2、…、n）The charging voltage upper limit and two times of diode drop sums when in parallel.
6. the charge and discharge electrical switching device of the series connection of n secondary cell and parallel connection according to claim 1,2,3 or 4, its feature
It is：Light emitting diode during constant-current charge in parallel（L2i, i=1,2 ..., n）Between time difference for lighting and light during discharged in series
Diode（L2i, i=1,2 ..., n）Between time difference for extinguishing, can be to n secondary cell on predetermined charging limitation voltage
Make the judge of electrical property；During discharged in series, light emitting diode（L1i, i=1,2 ..., n）Between time difference for extinguishing, can be to n
Individual secondary cell makes the judge of electrical property on predetermined electric discharge limitation voltage；The time difference smaller secondary electricity light, extinguished
Electrical property between pond is closer.
7. the charge and discharge electrical switching device of the series connection of n secondary cell and parallel connection according to claim 1,2 or 3, its feature exist
In：Each secondary cell（C i, i=1,2 ..., n）By the electrical connection in parallel of at least one monomer secondary cell.
8. the charge and discharge electrical switching device of the series connection of n secondary cell and parallel connection according to claim 1,2 or 3, its feature exist
In：Each secondary cell（C i, i=1,2 ..., n）It is electrically connected in series by least one monomer secondary cell.
9. the charge and discharge electrical switching device of the series connection of n secondary cell and parallel connection according to claim 1,2 or 3, its feature exist
In：Transformer secondary coil（8）Tap（9）Constant-voltage charge terminal is connected to through over commutation, constant voltage circuit（4）, secondary coil
（8）One end is through over commutation, constant-current circuit, diode（10）It is connected to constant-current charge terminal（3）, secondary coil（8）The other end and
Negative pole charging terminal altogether（5）Electrical connection；Constant-current charge terminal（3）Voltage be less than secondary cell（C i, i=1,2 ..., n）Series connection
When the charging voltage upper limit, constant-voltage charge terminal（4）Voltage be less than secondary cell（C i, i=1,2 ..., n）Charging when in parallel
Upper voltage limit and two times of diode drop sums.
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| CN201710749603.5A CN107546798A (en) | 2017-08-28 | 2017-08-28 | N secondary cell series connection and charge and discharge electrical switching device in parallel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109119579A (en) * | 2018-10-23 | 2019-01-01 | 深圳市统凌科技有限公司 | A kind of low speed vehicle lithium battery parallel system |
| CN109301893A (en) * | 2018-09-25 | 2019-02-01 | 惠州亿纬锂能股份有限公司 | The power supply device of multiband voltage output |
| CN111384762A (en) * | 2020-05-29 | 2020-07-07 | 北京小米移动软件有限公司 | Battery module, charging circuit, charging control method and device and electronic equipment |
| CN111697825A (en) * | 2020-06-02 | 2020-09-22 | 上海交通大学 | Series charging parallel discharging type high-power voltage reduction circuit and control method thereof |
| CN116073486A (en) * | 2023-03-03 | 2023-05-05 | 苏州浪潮智能科技有限公司 | BBU reconstruction equalization charge-discharge circuit and method for realizing charge-discharge reconstruction equalization |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109301893A (en) * | 2018-09-25 | 2019-02-01 | 惠州亿纬锂能股份有限公司 | The power supply device of multiband voltage output |
| CN109119579A (en) * | 2018-10-23 | 2019-01-01 | 深圳市统凌科技有限公司 | A kind of low speed vehicle lithium battery parallel system |
| CN111384762A (en) * | 2020-05-29 | 2020-07-07 | 北京小米移动软件有限公司 | Battery module, charging circuit, charging control method and device and electronic equipment |
| CN111697825A (en) * | 2020-06-02 | 2020-09-22 | 上海交通大学 | Series charging parallel discharging type high-power voltage reduction circuit and control method thereof |
| CN111697825B (en) * | 2020-06-02 | 2021-09-07 | 上海交通大学 | Series charging parallel discharging type high-power voltage reduction circuit and control method thereof |
| CN116073486A (en) * | 2023-03-03 | 2023-05-05 | 苏州浪潮智能科技有限公司 | BBU reconstruction equalization charge-discharge circuit and method for realizing charge-discharge reconstruction equalization |
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Application publication date: 20180105 |