CN108448185A - Electrokinetic cell system - Google Patents
Electrokinetic cell system Download PDFInfo
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- CN108448185A CN108448185A CN201810462828.7A CN201810462828A CN108448185A CN 108448185 A CN108448185 A CN 108448185A CN 201810462828 A CN201810462828 A CN 201810462828A CN 108448185 A CN108448185 A CN 108448185A
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- switch
- contact
- relay
- electrokinetic cell
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- 230000005611 electricity Effects 0.000 claims description 24
- 238000007600 charging Methods 0.000 claims description 22
- 239000003990 capacitor Substances 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 10
- 239000005955 Ferric phosphate Substances 0.000 claims description 5
- QSNQXZYQEIKDPU-UHFFFAOYSA-N [Li].[Fe] Chemical compound [Li].[Fe] QSNQXZYQEIKDPU-UHFFFAOYSA-N 0.000 claims description 5
- 229940032958 ferric phosphate Drugs 0.000 claims description 5
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 claims description 5
- 229910000399 iron(III) phosphate Inorganic materials 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 5
- 206010037660 Pyrexia Diseases 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000019635 sulfation Effects 0.000 description 1
- 238000005670 sulfation reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
-
- H02J7/0027—
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
An embodiment of the present invention provides a kind of electrokinetic cell systems, after second contact of magnetic latching relay is attracted, first switch K1 and second switch K2 can be driven to be closed, and the moment that the first contact is attracted in the second contact disconnects, corresponding third switch K3 is also disconnected, the anode of each first single battery S1 links together through corresponding first switch K1 at this time, and cathode links together through corresponding second switch K2, in parallel between first single battery S1；After first contact is attracted, third switch K3 can be driven to be closed, and the moment that the second contact is attracted in the first contact disconnects, first switch K1 and second switch K2 are also disconnected, are serially connected at this time through third switch K3 between each first single battery S1.Electrokinetic cell system in the present invention, the characteristic that multiconductor is simultaneously switched off or is closed when being overturn using magnetic latching relay shorten the switching time of series and parallel between single battery, and low energy consumption, efficient, and stability is good.
Description
Technical field
The present invention relates to power battery technology field more particularly to a kind of electrokinetic cell systems.
Background technology
With the development of society, the application of power battery is more and more extensive, in electric vehicle, electric bicycle, electronic work
There is application on tool even electric train.
Since the cadmium in nickel-cadmium cell (Ni-Cd) is toxic, keep refuse battery processing complicated, environment is contaminated, 2013 12
After month, national environmental protection and Ministry of Industry and Information force lead-acid power accumulator to replace previous nickel-cadmium cell, and are produced in power battery
It needs to use " no cadmium internal formation process " in the process, but this also leads to power battery cathode vulcanization, single only backwardness, temperature performance difference etc.
Problem increasingly highlights so that the service life of power battery compared to substantially shortening in the past, it is demonstrated experimentally that single battery uses the longevity
Life is only 350 cycles, is even more to recycle down to 250 when being used in series.Along with single battery individual difference and
Often there is a part of single battery and seriously overcharges in environmental difference when use, and another part single battery is still in charge less electricity
State further shortens the service life of battery, increases the after cost of producer.
However, a kind of electrokinetic cell system can effectively overcome drawbacks described above currently not yet.
Invention content
In view of the above problems, it is proposed that the present invention overcoming the above problem in order to provide one kind or solves at least partly
The electrokinetic cell system of problem is stated, scheme is as follows：
Technical solution
An embodiment of the present invention provides a kind of electrokinetic cell systems, including：Magnetic latching relay, magnetic latching relay control
Module, several first switch K1, several second switch K2, several third switch K3 and several first single battery S1；
Between the anode of each two adjacent first single battery S1, there are one the first switch K1 for concatenation；Often
Between the cathode of two adjacent first single battery S1, there are one the second switch K2 for concatenation；And along electric current stream
To, the cathode of the previous first single battery S1 and the anode of adjacent thereto first single battery S1
Between, there are one the third switch K3 for concatenation；
The magnetic latching relay includes multiple first contacts and multiple second contacts, each first switch K1 and
The second switch K2 corresponds to first contact respectively, and each third switch K3, corresponding one described second is touched
Point；After second contact is attracted, the first switch K1 and second switch K2 is driven to be closed, at this time first contact
It disconnects, and then the third switch K3 is driven to disconnect, it is in parallel between the first single battery S1；After first contact is attracted,
The third switch K3 is driven to be closed, second contact disconnects at this time, and then drives the first switch K1 and described second
Switch K2 is disconnected, and is connected between the first single battery S1；
The magnetic latching relay control module for providing pulse voltage to the magnetic latching relay, and then controls
The overturning of state between first contact and second contact of the magnetic latching relay.
Optionally, the electrokinetic cell system further includes several second comonomer battery pack S2, each second comonomer
Battery pack S2 includes at least one second comonomer battery, and between the second comonomer battery in each second comonomer battery pack S2
It is connected in series with；
Each second comonomer battery pack S2 corresponds to a first single battery S1, and is connected in parallel therewith, and
The series connection saturation voltage of the second comonomer battery pack S2 is higher than the saturation voltage of the first single battery S1.
Optionally, the electrokinetic cell system, the first single battery S1 are lead-acid battery, the second comonomer electricity
Pond is ferric phosphate lithium cell or ternary lithium iron battery.
Optionally, the electrokinetic cell system, the magnetic latching relay control module include：It is DC relay, interior
Set charhing unit, the 4th switch K4, the first diode D1, the 5th switch K5, the 6th switch K6 and the 7th switch K7；
The DC relay includes the first normally opened contact A, the second normally opened contact B, the first normally-closed contact C, second normally closed
Contact D, the first common E and the second common F, when the input terminal of the DC relay is applied with forward dc voltage
When, the first common E and the first normally opened contact A electrical connections, the second common F and described second normally opened
Contact B is electrically connected, and the DC relay is in normally open；When the input terminal of the DC relay is not applied with forward direction directly
When galvanic electricity is pressed, the first common E and the first normally-closed contact C electrical connections, the second common F and described second is often
Closed contact D electrical connections, the DC relay are in normally off；
The anode of the built-in charhing unit respectively with the positive bus of the electrokinetic cell system and described second often
Closed contact D electrical connection, the cathode of the built-in charhing unit simultaneously with the output end of the DC relay and the described 7th
One end of switch K7 connects, and the other end of the 7th switch K7 is electrically connected with the negative bus of the electrokinetic cell system；
One end of the 4th switch K4 is electrically connected with the positive bus of the electrokinetic cell system, the 4th switch K4
The anode of the other end and the first diode D1 be electrically connected, the cathode of the first diode D1 at the same with the direct current after
One end of the input terminal of electric appliance and the 5th switch K5 are electrically connected, and the other end and the magnetic of the 5th switch K5 are kept
The first input end of relay connects, and the second common F is through the 6th switch K6 and the magnetic latching relay
Second input terminal is electrically connected；
The 5th switch K5 and the 7th switch K7 corresponds to the first contact of a magnetic latching relay respectively,
The 6th switch K6 corresponds to the second contact of a magnetic latching relay；
After second contact is attracted, drive the first switch K1, the second switch K2, the 5th switch K5 with
And the 7th switch K7 is closed, first contact disconnects at this time, and then the third switch K3 and the described 6th is driven to open
K6 is closed to disconnect, it is in parallel between the first single battery S1；After first contact is attracted, the third switch K3 and described is driven
6th switch K6 is closed, and second contact disconnects at this time, and then drives the first switch K1, the second switch K2, institute
It states the 5th switch K5 and the 7th switch K7 to disconnect, connect between the first single battery S1.
Optionally, the rated charging voltage of the electrokinetic cell system, the built-in charhing unit is higher than described second
The series connection saturation voltage of single battery group S2.
Optionally, the electrokinetic cell system further includes：Adjustable pressure limiting module, the adjustable pressure limiting module include control
Unit, relay unit and the second diode D2 processed；
The common J of the relay unit is connect with the cathode of the second diode D2, second diode
D2 anode be electrically connected with the first normally opened contact A of the DC relay, the normally-closed contact K of the relay unit with it is described
The input terminal of DC relay is electrically connected, and the input terminal of the relay unit and the control signal of described control unit export
End electrical connection, so that described control unit controls the switching of the relay unit state；
The power input of described control unit is electrically connected with the cathode of the first diode D1, described control unit
Voltage signal acquisition end G is electrically connected with the anode of first single battery S1 along current direction to obtain charging voltage signal,
When described control unit judges that the charging voltage signal exceeds preset voltage value, the input terminal to the relay unit is defeated
Go out to control signal, controls the relay unit and normally open is jumped to by normally off.
Optionally, the electrokinetic cell system further includes charge port, third diode D3 and the first temperature controller T1；
The anode of third diode D3 is public with the first of the positive and described DC relay of the charge port respectively
Contact E is electrically connected, the cathode of the third diode D3 respectively with one end of the first temperature controller T1 and the direct current after
First normally-closed contact C electrical connections of electric appliance, the other end of the first temperature controller T1 and first monomer electricity along current direction
The anode electrical connection of pond S1；
When the temperature of the electrokinetic cell system reaches or exceeds the first preset temperature, the first temperature controller T1 is disconnected
It opens, when the temperature of the electrokinetic cell system is down to first preset temperature or less, the first temperature controller T1 is closed.
Optionally, the electrokinetic cell system further includes the second temperature controller T2 and heat generating member；
One end of the second temperature controller T2 is electrically connected with the cathode of the first diode D1, the second temperature controller T2
The other end be electrically connected with one end of the heat generating member, the negative electricity of the other end of the heat generating member and the built-in charhing unit
Connection；
When the temperature of electrokinetic cell system is less than the second preset temperature, the second temperature controller T2 is closed, when power battery system
When the temperature of system rises to the second preset temperature or more, the second temperature controller T2 is disconnected.
Optionally, the electrokinetic cell system further includes several super capacitor S3 and the 8th switch K8；
It is connected in series between the super capacitor S3, and along current direction, the anode of first super capacitor S3 and the
The anode electrical connection of one first single battery S1, the cathode of the last one super capacitor and the 8th switch K8
One end electrical connection, the other end of the 8th switch K8 is electrically connected with negative bus；
The 8th switch K8 corresponds to the second contact of a magnetic latching relay；
After second contact is attracted, drive the first switch K1, the second switch K2, the 5th switch K5 with
And the 7th switch K7 is closed, first contact disconnects at this time, and then drives the third switch K3, the 6th switch
K6 and the 8th switch K8 is disconnected, in parallel between the first single battery S1；After first contact is attracted, described in drive
Third switch K3, the 6th switch K6 and the 8th switch K8 are closed, and second contact disconnects at this time, and then are driven
The first switch K1, the second switch K2, the 5th switch K5 and the 7th switch K7 are disconnected, and described first is single
It connects between body battery S1.
Optionally, the electrokinetic cell system is also serially connected with several limiting blocks in the electrokinetic cell system, when described
When the electric current that limiting block corresponds to branch exceeds pre-set current value, corresponding limiting block disconnects, when the limiting block corresponds to the electricity of branch
When stream is down to pre-set current value or less, corresponding limiting block is closed.
Advantageous effect
An embodiment of the present invention provides a kind of electrokinetic cell systems can band after the second contact actuation of magnetic latching relay
Dynamic first switch K1 and second switch K2 are closed, and the moment disconnection that the first contact is attracted in the second contact, and corresponding the
Three switch K3 are also disconnected, and the anode of each first single battery S1 links together through corresponding first switch K1 at this time, cathode
It links together through corresponding second switch K2, it is in parallel between first single battery S1；After first contact is attracted, third can be driven to hold
K3 is closed to be closed, and the moment that the second contact is attracted in the first contact disconnects, first switch K1 and second switch K2 are also disconnected, at this time
It is serially connected through third switch K3 between each first single battery S1.Electrokinetic cell system in the present invention, is kept using magnetic
The characteristic that multiconductor is simultaneously switched off or is closed when relay is overturn, shortens the switching time of series and parallel between single battery, energy consumption
Low, efficient, stability is good, make power battery serial connection charge, discharged in series use during the equalization problem that occurs obtain
Solution is arrived.Periphery circuit of the embodiment of the present invention is simple, reliable, and various power battery compound uses is made to become very simple, real
With especially particularly important to application fields such as electric bicycle, electric vehicles.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, below the special specific implementation mode for lifting the present invention.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit are common for this field
Technical staff will become clear.Attached drawing only for the purpose of illustrating preferred embodiments, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 is the circuit diagram of electrokinetic cell system in the embodiment of the present invention 1；
Fig. 2 is the circuit diagram of electrokinetic cell system in the embodiment of the present invention 2.
Specific implementation mode
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.
Embodiment 1
A kind of electrokinetic cell system is present embodiments provided, as shown in Figure 1, including：Magnetic latching relay, magnetic keep relay
Device control module, several first switch K1, several second switch K2, several third switch K3 and several first single batteries
S1；
Between the anode of each two adjacent first single battery S1, there are one first switch K1 for concatenation；Each two is adjacent
First single battery S1 cathode between, concatenation is there are one second switch K2；And along current direction, previous first monomer
Between the cathode of battery S1 and the anode of adjacent thereto first single battery S1, there are one third switch K3 for concatenation；It answers
Can be lead-acid battery with middle first single battery S1, the present embodiment does not limit this.
Magnetic latching relay includes multiple first contacts and multiple second contacts, each first switch K1 and second switch
K2 corresponds to first contact, each third switch K3, corresponding second contact respectively；After second contact is attracted, the is driven
One switch K1 and second switch K2 are closed, and the first contact disconnects at this time, and then third switch K3 is driven to disconnect, first single battery
It is in parallel between S1；After first contact is attracted, third switch K3 is driven to be closed, the second contact disconnects at this time, and then drives first switch
K1 and second switch K2 are disconnected, and are connected between first single battery S1；
Magnetic latching relay control module, for give magnetic latching relay provide pulse voltage, and then control magnetic keep after
The overturning of state between the first contact and the second contact of electric appliance.
Its operation principle is as follows：When the structure of magnetic latching relay determines that the first contact is attracted, the second contact must break
It opens, after when the first contact disconnects, the second contact must be attracted, therefore the second contact is attracted, first switch K1 and second can be driven
Switch K2 is closed, and the moment that the first contact is attracted in the second contact disconnects, and third switch K3 can also be disconnected moment at this time, at this time
The anode of each first single battery S1 links together through corresponding first switch K1, the cathode of each first single battery S1
It links together through corresponding second switch K2, it is in parallel between first single battery S1；After first contact is attracted, third can be driven to hold
K3 is closed to be closed, and the moment that the second contact is attracted in the first contact disconnects, also moment disconnects by first switch K1 and second switch K2,
It is serially connected at this time through third switch K3 between each first single battery S1.
Electrokinetic cell system in the present embodiment, multiconductor is simultaneously switched off or is closed when being overturn using magnetic latching relay
Characteristic shortens the switching time of series and parallel between single battery, and low energy consumption, efficient, and stability is good, and power battery is made to go here and there
The equalization problem occurred during connection charging, the use of discharged in series is resolved.Periphery circuit of the embodiment of the present invention is simple,
Reliably, various power battery compound uses are made to become very simple, practical, especially to applications such as electric bicycle, electric vehicles
Field is particularly important.
Optionally, the electrokinetic cell system in the present embodiment further includes several second comonomer battery pack S2, and each second is single
Body battery pack S2 includes at least one second comonomer battery, and is gone here and there between the second comonomer battery in each second comonomer battery pack S2
Connection connection；
Each second comonomer battery pack S2 corresponds to a first single battery S1, and is connected in parallel therewith, and second comonomer
The series connection saturation voltage of battery pack S2 is higher than the saturation voltage of first single battery S1.
Optionally, the electrokinetic cell system in the embodiment of the present invention, first single battery S1 are lead-acid battery, second comonomer
Battery is ferric phosphate lithium cell or ternary lithium iron battery.
Because the saturation voltage of ferric phosphate lithium cell levels off to 3.2V, the saturation voltage of ternary lithium iron battery levels off to
4.2V can choose 4 string ferric phosphate batteries or 3 string ternary lithium iron batteries, to ensure second comonomer battery pack S2 in
Series connection saturation voltage higher than 12V (lead-acid battery saturation voltage be 12V)
Its operation principle is as follows：Because second comonomer battery pack S2 is in parallel with first single battery S1, and second comonomer electricity
The series connection saturation voltage of pond group S2 is higher than the saturation voltage of first single battery S1, and second comonomer battery pack S2 will correspond to it
First single battery S1 low currents mend electricity, help that first single battery S1 is made to be constantly in floating charge electricity condition, to the
When one single battery S1 is lead-acid battery, its acid layering is effectively reduced, plays the role of devulcanization, extends lead-acid battery
Service life.
Optionally, the electrokinetic cell system in the embodiment of the present invention, magnetic latching relay control module include：Direct current relay
Device, built-in charhing unit, the 4th switch K4, the first diode D1, the 5th switch K5, the 6th switch K6 and the 7th switch K7；
DC relay includes the first normally opened contact A, the second normally opened contact B, the first normally-closed contact C, the second normally-closed contact
D, the first common E and the second common F, when the input terminal of DC relay is applied with forward dc voltage, first
Common E and the first normally opened contact A electrical connections, the second common F and the second normally opened contact B electrical connections, DC relay
In normally open；When the input terminal of DC relay is not applied with forward dc voltage, the first common E and first is normal
Closed contact C electrical connections, the second common F and the second normally-closed contact D electrical connections, DC relay are in normally off；
The anode of built-in charhing unit is electrically connected with the positive bus of electrokinetic cell system and the second normally-closed contact D respectively
It connects, the cathode of built-in charhing unit is connect with one end of the output end of DC relay and the 7th switch K7 simultaneously, and the 7th opens
The other end for closing K7 is electrically connected with the negative bus of electrokinetic cell system；
One end of 4th switch K4 is electrically connected with the positive bus of electrokinetic cell system, the other end of the 4th switch K4 and
The anode electrical connection of one diode D1, the cathode of the first diode D1 are switched with the input terminal of DC relay and the 5th simultaneously
One end of K5 is electrically connected, and the other end of the 5th switch K5 and the first input end of magnetic latching relay connect, the second common F
It is electrically connected with the second input terminal of magnetic latching relay through the 6th switch K6；
5th switch K5 and the 7th switch K7 corresponds to the first contact of a magnetic latching relay, the 6th K6 pairs of switch respectively
Answer the second contact of a magnetic latching relay；
After second contact is attracted, first switch K1, second switch K2, the 5th switch K5 and the 7th switch K7 is driven to close
It closes, the first contact disconnects at this time, and then third switch K3 and the 6th switch K6 is driven to disconnect, in parallel between first single battery S1；
After first contact is attracted, third switch K3 and the 6th switch K6 is driven to be closed, the second contact disconnects at this time, and then drives first to open
It closes K1, second switch K2, the 5th switch K5 and the 7th switch K7 to disconnect, connect between first single battery S1.
Its operation principle is as follows：4th switch K4 is traditionally arranged to be the electric switch of electric vehicle or electric tool, and the 4th opens
When closing K4 closures, anode, fourth switch K4 and first diode D1 of the electric current through built-in charhing unit flow into DC relay
Input terminal, at this time Q points have voltage, and when the input terminal of DC relay is applied with forward dc voltage, the first common E and
First normally opened contact A electrical connections, the second common F and the second normally opened contact B electrical connections, DC relay are jumped by normally off
Go to normally open；It (is disconnected because even the 5th switch K5 is in, then simultaneously as the 5th switch K5 is initially in closed state
The 6th switch K6 is necessarily in closed state at this time, and before K4 is closed, Q dead electricity, DC relay is in normally off, at this time electric current
The second input terminal of magnetic latching relay will be flowed into through built-in charhing unit anode and the 6th switch K6, give one pulse electricity
Pressure, magnetic latching relay overturning, the 6th switch K6 disconnections at this time, the 5th switch K5 closures, therefore when K4 closures, the 5th switch K5
It is initial to be in closed state certainly), electric current flows into the first input end of magnetic latching relay through the 5th switch K5 at this time, gives one
A pulse voltage, magnetic latching relay are attracted the 5th switch K5 of overturning moment and disconnect, and the 6th switch K6 is closed, first single battery
It is connected in series between S1 and (is in serial connection charge state when charge port charges, charge port is uncharged and electric vehicle is in use, in series connection
Discharge condition)；If the 4th switch K4 is disconnected later, Q dead electricity, DC relay then switches to normally closed shape by normally open at this time
State, anode and sixth switch K6 of the electric current through built-in charhing unit flow into the second input terminal of magnetic latching relay, magnetic holding after
Electric appliance is attracted the 6th switch K6 of overturning moment and disconnects, and the 5th switch K5 is closed, and is connected in parallel between first single battery S1, power electric
Pond group is in equilibrium state in parallel.
Optionally, the electrokinetic cell system in the embodiment of the present invention, the rated charging voltage of built-in charhing unit is higher than the
The series connection saturation voltage of two single battery group S2.Built-in charhing unit may include the LiFePO4 that 5 strings are connected in series in
Battery or the 4 ternary lithium batteries that are connected in series with.The charging voltage of built-in charhing unit is higher than second comonomer battery pack S2, from
It is so higher than the saturation voltage of first single battery S1, in this way when being connected in parallel between first single battery S1, because built-in fill
The charging voltage of electric unit is higher than first single battery S1 and second comonomer battery pack S2, and built-in charhing unit will be to monomer electricity
Pond is charged, and built-in charhing unit is the effect operation of charger baby at this time, and certainly in turn, first single battery S1 can also
It charging (with using, built-in charhing unit charging voltage can continuously decrease) to built-in charhing unit, whose height this mainly sees, and who is low,
Follow the principle that high pressure fills low pressure.By charging in time to lead-acid battery, its vulcanization can be reduced.
Optionally, the electrokinetic cell system in the embodiment of the present invention further includes：Adjustable pressure limiting module, adjustable pressure limiting module
Including control unit, relay unit and the second diode D2；
The common J of relay unit is connect with the cathode of the second diode D2, and the second diode D2's is positive and straight
First normally opened contact A electrical connections of current relay, the normally-closed contact K of relay unit and the input terminal of DC relay are electrically connected
It connects, and the input terminal of relay unit is electrically connected with the control signal output of control unit, so that control unit controls relay
The switching of device location mode；
The power input of control unit is electrically connected with the cathode of the first diode D1, the voltage signal acquisition of control unit
End G is electrically connected with the anode of first single battery S1 along current direction to obtain charging voltage signal, when control unit is sentenced
When disconnected charging voltage signal exceeds preset voltage value, control signal is exported to the input terminal of relay unit, controls relay list
Member jumps to normally open by normally off.
Its operation principle is as follows：Adjustable pressure limiting module only plays a role when electrokinetic cell system is in charged state,
When not charging, adjustable pressure limiting module does not work.The reason is that when K4 is closed, if electrokinetic cell system is in not charged state, directly
Current relay is in normally open, and in conjunction with the unidirectional setting of the second diode D2, Q points realize adjustable pressure limiting mould without electricity at this time
The effect of electric energy is not consumed when block does not work；
When power battery is in charged state, being disconnected again if operation K4 is first closed, K4, which is closed moment Q point, voltage,
Because of the 5th switch K5 first closures, electric current flows into magnetic and protects through built-in charhing unit anode, the first diode D1, the 5th switch K5
The first input end for holding relay provides the pulse voltage of an overturning, and it is disconnected that magnetic latching relay is attracted the 5th switch K5 of moment
It opens, the 6th switch K6 is closed, and power battery pack is in serial connection charge state.Namely as long as switch is primary, charger will
Serial connection charge is carried out to battery pack.When being charged to high-order pressure limiting, adjustable voltage module is started to work, at this time adjustable voltage module
Control unit controls the relay unit in it and jumps to normally open by normally off, at this time Q points decompression, DC relay by
Normally open jumps to normally off, and anode and sixth switch K6 of the electric current through built-in charhing unit flow into magnetic and keep relay at this time
Second input terminal of device provides the pulse voltage of an overturning, and magnetic latching relay is attracted the 6th switch K6 of moment and disconnects, and the 5th
Switch K5 is closed, and is connected in parallel between first single battery S1 at this time, electrokinetic cell system is in charged in parallel state.Foundation is filled
The opering characteristic of electric apparatus, 48V extrapolations charger can jump with the gaps 200-300ms, and built-in charhing unit continues single with low current pair first
Body battery S1 and the S2 chargings of second comonomer battery pack.The embodiment of the present invention by combined charge device itself there is gap to jump the work(of falling
Can, and by adding adjustable pressure limiting module so that battery is full of electricity condition (high pressure conditions), always between 200-300ms
Gap realizes the gap high-voltage pulse type charging of battery, makes first single battery S1 and second by low current (0.3-1.5A)
Single battery group S2 is in floating charge state after fully charged, and verified, single first single battery S1 (saturation voltage 12V) can fill
To 15-16V, battery capacity is substantially increased, battery cathode sulfation is being reduced simultaneously, is also reducing the percentage of water loss of battery；
When pulling up charger, when K4 is closed vehicle operation, power battery is in discharge condition, because Q points voltage is at this time
Built-in charhing unit provides, therefore not will produce any influence, and electric switch (the 4th switch to the state-of-charge of single battery
K4 after) being closed, electric current flows into magnetic through built-in charhing unit, the 4th switch K4, the first diode D1, the 5th switch K5 and keeps relay
The first input end of device provides the pulse voltage of an overturning, and it is disconnected to be attracted the 5th switch K5 of moment for magnetic latching relay at this time
It opens, the 6th switch K6 is closed, discharged in series between first single battery S1.Magnetic latching relay disconnects magnetic automatically after completing to overturn
The power supply of guard relay reduces the energy consumption of system.
Optionally, the electrokinetic cell system in the embodiment of the present invention further includes charge port, the temperature of third diode D3 and first
Control device T1；
First common E of the anode of third diode D3 respectively with the anode of charge port and DC relay is electrically connected
It connects, the cathode of third diode D3 is electric with the first normally-closed contact C of one end of the first temperature controller T1 and DC relay respectively
Connection, the other end of the first temperature controller T1 are electrically connected with the anode of first single battery S1 along current direction；
When the temperature of electrokinetic cell system reaches or exceeds the first preset temperature, the first temperature controller T1 is disconnected, and works as power
When the temperature of battery system is down to the first preset temperature or less, the first temperature controller T1 is closed.
In, the first temperature controller T1 can select high-temperature control on the market to switch, and the first preset temperature can be 43
Degree Celsius, the present embodiment does not limit this.
Its operation principle is as follows：By taking the charging of built-in charhing unit as an example, when charging, Q point dead electricity, DC relay is in normal
Closed state, when electrokinetic cell system temperature is less than the first preset temperature, the first temperature controller T1 is closed, and electric current is through built-in charhing unit
Anode, the first temperature controller T1, the first normally-closed contact C of DC relay, the first common E of DC relay and third
Diode D3 charges to battery pack；And once electrokinetic cell system temperature is higher than the first preset temperature, then the first temperature controller T1 is disconnected
Open, charging circuit is truncated, and can reduce the temperature of electrokinetic cell system, etc. temperature be down to the first preset temperature hereinafter, then
One temperature controller T1 restores to be closed, and continues to charge to battery pack.
Optionally, the electrokinetic cell system in the embodiment of the present invention further includes the second temperature controller T2 and heat generating member；
One end of second temperature controller T2 is electrically connected with the cathode of the first diode D1, the other end and hair of the second temperature controller T2
One end of warmware is electrically connected, and the other end of heat generating member is electrically connected with the cathode of built-in charhing unit；
When the temperature of electrokinetic cell system is less than the second preset temperature, the second temperature controller T2 is closed, when power battery system
When the temperature of system rises to the second preset temperature or more, the second temperature controller T2 is disconnected.
In, it can be 15 that the second temperature controller T2, which can select low temperature temperature detect switch (TDS) on the market, the second preset temperature,
Degree Celsius, the present embodiment does not limit this.
Its operation principle is as follows：K4 is closed, and Q points have electricity, and when temperature is less than the second preset temperature, the second temperature controller T2 is closed
It closes, electric current flows into heat generating member through the second temperature controller T2, and heat generating member is heating up, when temperature of powered cell rises to the second preset temperature
When above, the second temperature controller T2 is disconnected, and circuit is truncated, and heat generating member stops fever.
The embodiment of the present invention is by adding the first temperature controller T1 and the second temperature controller T2, and it is excessive to avoid charging current, peace
Full performance is good, while temperature of powered cell being made to be between 15-43 degrees Celsius, has good charge and discharge effect.
Optionally, the electrokinetic cell system in the embodiment of the present invention further includes several super capacitor S3 and the 8th switch K8；
Be connected in series between super capacitor S3, and along current direction, the anode of first super capacitor S3 with first first
The anode electrical connection of single battery S1, the cathode of the last one super capacitor are electrically connected with one end of the 8th switch K8, and the 8th opens
The other end for closing K8 is electrically connected with negative bus；
8th switch K8 corresponds to the second contact of a magnetic latching relay；
After second contact is attracted, first switch K1, second switch K2, the 5th switch K5 and the 7th switch K7 is driven to close
It closes, the first contact disconnects at this time, and then third switch K3, the 6th switch K6 and the 8th switch K8 is driven to disconnect, the first monomer
It is in parallel between battery S1；After first contact is attracted, third switch K3, the 6th switch K6 and the 8th switch K8 is driven to be closed, at this time
Second contact disconnects, and then first switch K1, second switch K2, the 5th switch K5 and the 7th switch K7 is driven to disconnect, and first
It connects between single battery S1.
Its operation principle is as follows：Only when connecting between first single battery S1, the 8th switch K8 can be just closed, super electricity
Holding S3 can just come into operation.It is concatenated super for certain Special use situations, such as when brake suddenly by this set
Capacitance S3 can absorb the instantaneous large-current generated when brake, the storage that super capacitor S3 can be before slow release goes out again after parking
It can charge, reduce monoblock battery vulcanization, play the role of peak load shifting, keep the electric current in electrokinetic cell system relatively more flat
Surely.
Optionally, the electrokinetic cell system in the embodiment of the present invention is also serially connected with several limiting blocks in electrokinetic cell system,
When the electric current that limiting block corresponds to branch exceeds pre-set current value, corresponding limiting block disconnects, when limiting block corresponds to the electric current of branch
When being down to pre-set current value or less, corresponding limiting block is closed.
In, limiting block can select any type current limliting module on the market, and it is not limited in the embodiment of the present invention,
Circuit that can be where the super capacitor electric current and the second temperature controller T2 in concatenation concatenates above-mentioned limiting block, and excessive electricity occurs in limitation
Stream.
Embodiment 2
On the basis of embodiment 1, as shown in Fig. 2, the electrokinetic cell system in the embodiment of the present invention, further includes the four or two
Pole pipe D4, and it (can be control in application that the cathode of the 4th diode D4 is electrically connected with a cathode line of adjustable voltage module
The negative pin of unit processed), the positive electrode and negative electrode bus electrical connection of the 4th diode D4.
Since when it is total minus to detect voltage, the estimated threshold pressure for having 0.3-0.5V of one-way conduction, by examining
It surveys and an one-way guide flow diode is set in auxiliary line, it being capable of effective protection chip.When it is total eurymeric to detect voltage, Ke Yishe
Setting can not also be arranged.
It these are only embodiments herein, be not intended to limit this application.To those skilled in the art,
The application can have various modifications and variations.It is all within spirit herein and principle made by any modification, equivalent replacement,
Improve etc., it should be included within the scope of claims hereof.
Claims (10)
1. a kind of electrokinetic cell system, which is characterized in that including：It is magnetic latching relay, magnetic latching relay control module, several
First switch (K1), several second switches (K2), several thirds switch (K3) and several first single batteries (S1)；
Between the anode of each two adjacent first single battery (S1), there are one the first switches (K1) for concatenation；Often
Between the cathode of two adjacent first single batteries (S1), there are one the second switches (K2) for concatenation；And along electricity
Stream flow direction, the cathode of the previous first single battery (S1) and adjacent thereto first single battery (S1)
Between anode, there are one the thirds to switch (K3) for concatenation；
The magnetic latching relay includes multiple first contacts and multiple second contacts, each first switch (K1) and institute
It states second switch (K2) and corresponds to first contact respectively, each third switch (K3) is one described second corresponding
Contact；After second contact is attracted, the first switch (K1) and the second switch (K2) closure are driven, described at this time the
One contact disconnects, and then the third switch (K3) is driven to disconnect, in parallel between the first single battery (S1)；Described first touches
After point is attracted, the third switch (K3) is driven to be closed, second contact disconnects at this time, and then drives the first switch
(K1) it disconnects with the second switch (K2), connects between the first single battery (S1)；
The magnetic latching relay control module, for providing pulse voltage to the magnetic latching relay, and then described in control
The overturning of state between first contact and second contact of magnetic latching relay.
2. electrokinetic cell system according to claim 1, which is characterized in that further include several second comonomer battery packs
(S2), each second comonomer battery pack (S2) includes at least one second comonomer battery, and each second comonomer electricity
It is connected in series between second comonomer battery in pond group (S2)；
Each second comonomer battery pack (S2) corresponds to a first single battery (S1), and is connected in parallel therewith, and
The series connection saturation voltage of the second comonomer battery pack (S2) is higher than the saturation voltage of the first single battery (S1).
3. electrokinetic cell system according to claim 2, which is characterized in that the first single battery (S1) is plumbic acid electricity
Pond, the second comonomer battery are ferric phosphate lithium cell or ternary lithium iron battery.
4. according to claim 1-3 any one of them electrokinetic cell systems, which is characterized in that the magnetic latching relay control
Module includes：DC relay, built-in charhing unit, the 4th switch (K4), the first diode (D1), the 5th switch (K5), the
Six switches (K6) and the 7th switch (K7)；
The DC relay include the first normally opened contact (A), the second normally opened contact (B), the first normally-closed contact (C), second often
Closed contact (D), the first common (E) and the second common (F), when the input terminal of the DC relay is applied with forward direction
When DC voltage, first common (E) and first normally opened contact (A) electrical connection, second common (F)
It is electrically connected with second normally opened contact (B), the DC relay is in normally open；When the input of the DC relay
When end is not applied with forward dc voltage, first common (E) and first normally-closed contact (C) electrical connection, second
Common (F) and second normally-closed contact (D) electrical connection, the DC relay are in normally off；
The anode of the built-in charhing unit normally closed is touched with the positive bus of the electrokinetic cell system and described second respectively
Point (D) is electrically connected, and the cathode of the built-in charhing unit is opened with the output end of the DC relay and the described 7th simultaneously
One end connection of (K7) is closed, the other end of the 7th switch (K7) is electrically connected with the negative bus of the electrokinetic cell system；
One end of 4th switch (K4) is electrically connected with the positive bus of the electrokinetic cell system, the 4th switch (K4)
The anode of the other end and first diode (D1) be electrically connected, the cathode of first diode (D1) simultaneously with it is described directly
One end electrical connection of the input terminal of current relay and the 5th switch (K5), the other end of the 5th switch (K5) and institute
The first input end connection of magnetic latching relay is stated, second common (F) switchs (K6) and the magnetic through the described 6th
Second input terminal of guard relay is electrically connected；
5th switch (K5) and the 7th switch (K7) correspond to the first contact of a magnetic latching relay respectively,
Second contact of the corresponding magnetic latching relay of the 6th switch (K6)；
After second contact is attracted, the first switch (K1), the second switch (K2), the 5th switch (K5) are driven
And the 7th switch (K7) is closed, first contact disconnects at this time, and then drives the third switch (K3) and described
6th switch (K6) disconnects, in parallel between the first single battery (S1)；After first contact is attracted, the third is driven to open
It closes (K3) and the 6th switch (K6) is closed, second contact disconnects at this time, and then drives the first switch (K1), institute
It states second switch (K2), the 5th switch (K5) and the 7th switch (K7) to disconnect, the first single battery (S1)
Between connect.
5. electrokinetic cell system according to claim 4, which is characterized in that the specified charging electricity of the built-in charhing unit
Series connection saturation voltage of the pressure higher than the second comonomer battery pack (S2).
6. electrokinetic cell system according to claim 4 or 5, which is characterized in that further include：Adjustable pressure limiting module, it is described
Adjustable pressure limiting module includes control unit, relay unit and the second diode (D2)；
The common (J) of the relay unit is connect with the cathode of second diode (D2), second diode
(D2) anode is electrically connected with the first normally opened contact (A) of the DC relay, the normally-closed contact (K) of the relay unit
It is electrically connected with the input terminal of the DC relay, and the control letter of the input terminal of the relay unit and described control unit
Number output end electrical connection, so that described control unit controls the switching of the relay unit state；
The power input of described control unit is electrically connected with the cathode of first diode (D1), the electricity of described control unit
Pressure signal acquisition terminal (G) is electrically connected with the anode of first single battery (S1) along current direction to obtain charging voltage letter
Number, when described control unit judges that the charging voltage signal exceeds preset voltage value, the input to the relay unit
End output control signal, controls the relay unit and jumps to normally open by normally off.
7. according to claim 4-6 any one of them electrokinetic cell systems, which is characterized in that further include charge port, the three or two
Pole pipe (D3) and the first temperature controller (T1)；
The anode of third diode (D3) is public tactile with the first of the positive and described DC relay of the charge port respectively
Point (E) is electrically connected, the cathode of the third diode (D3) respectively with one end of first temperature controller (T1) and described straight
The first normally-closed contact (C) of current relay is electrically connected, the other end of first temperature controller (T1) with along the first of current direction
The anode electrical connection of a single battery (S1)；
When the temperature of the electrokinetic cell system reaches or exceeds the first preset temperature, first temperature controller (T1) disconnects,
When the temperature of the electrokinetic cell system is down to first preset temperature or less, first temperature controller (T1) is closed.
8. electrokinetic cell system according to claim 7, which is characterized in that further include the second temperature controller (T2) and fever
Part；
One end of second temperature controller (T2) is electrically connected with the cathode of first diode (D1), second temperature controller
(T2) the other end is electrically connected with one end of the heat generating member, and the other end of the heat generating member is negative with the built-in charhing unit
Pole is electrically connected；
When the temperature of electrokinetic cell system is less than the second preset temperature, the second temperature controller T2 is closed, when electrokinetic cell system
When temperature rises to the second preset temperature or more, the second temperature controller T2 is disconnected.
9. according to claim 1-8 any one of them electrokinetic cell systems, which is characterized in that further include several super capacitors
(S3) and the 8th switchs (K8)；
It is connected in series between the super capacitor (S3), and along current direction, the anode of first super capacitor (S3) and the
The anode electrical connection of one first single battery (S1), the cathode of the last one super capacitor are switched with the described 8th
(K8) other end of one end electrical connection, the 8th switch (K8) is electrically connected with negative bus；
Second contact of the corresponding magnetic latching relay of the 8th switch (K8)；
After second contact is attracted, the first switch (K1), the second switch (K2), the 5th switch (K5) are driven
And the 7th switch (K7) is closed, first contact disconnects at this time, and then drives the third switch (K3), described the
Six switches (K6) and the 8th switch (K8) disconnect, in parallel between the first single battery (S1)；It inhales first contact
After conjunction, third switch (K3), the 6th switch (K6) and the 8th switch (K8) is driven to be closed, described at this time the
Two contacts disconnect, and then drive the first switch (K1), the second switch (K2), the 5th switch (K5) and described
7th switch (K7) disconnects, and connects between the first single battery (S1).
10. electrokinetic cell system according to claim 9, which is characterized in that be also serially connected in the electrokinetic cell system
Several limiting blocks, when the electric current that the limiting block corresponds to branch exceeds pre-set current value, corresponding limiting block disconnects, when the limit
When the electric current that stream block corresponds to branch is down to pre-set current value or less, corresponding limiting block is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810462828.7A CN108448185A (en) | 2018-05-15 | 2018-05-15 | Electrokinetic cell system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810462828.7A CN108448185A (en) | 2018-05-15 | 2018-05-15 | Electrokinetic cell system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108448185A true CN108448185A (en) | 2018-08-24 |
Family
ID=63203741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810462828.7A Withdrawn CN108448185A (en) | 2018-05-15 | 2018-05-15 | Electrokinetic cell system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108448185A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2705796C1 (en) * | 2019-05-21 | 2019-11-12 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ставропольский государственный аграрный университет" | Electromagnetic relay for switching accumulator batteries from parallel to coupled parallel charging |
| CN110562095A (en) * | 2019-08-14 | 2019-12-13 | 珠海凯邦电机制造有限公司 | Electric automobile, battery voltage regulating circuit and method |
-
2018
- 2018-05-15 CN CN201810462828.7A patent/CN108448185A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2705796C1 (en) * | 2019-05-21 | 2019-11-12 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ставропольский государственный аграрный университет" | Electromagnetic relay for switching accumulator batteries from parallel to coupled parallel charging |
| CN110562095A (en) * | 2019-08-14 | 2019-12-13 | 珠海凯邦电机制造有限公司 | Electric automobile, battery voltage regulating circuit and method |
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Application publication date: 20180824 |