CN110299493A - A kind of lithium battery pack grouping method - Google Patents
A kind of lithium battery pack grouping method Download PDFInfo
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- CN110299493A CN110299493A CN201910675708.XA CN201910675708A CN110299493A CN 110299493 A CN110299493 A CN 110299493A CN 201910675708 A CN201910675708 A CN 201910675708A CN 110299493 A CN110299493 A CN 110299493A
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- lithium battery
- fixedly connected
- battery pack
- module
- module housing
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 103
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 46
- 229910001120 nichrome Inorganic materials 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 239000000178 monomer Substances 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000003825 pressing Methods 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 230000006378 damage Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000005779 cell damage Effects 0.000 description 1
- 208000037887 cell injury Diseases 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012216 screening Methods 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
Abstract
The present invention relates to Combined storage battery technical fields; the invention discloses a kind of lithium battery pack grouping methods; it is characterized in that; including module housing; the inside of the module housing offers lithium battery fixing groove; the inside of the lithium battery fixing groove is fixedly connected with lithium battery module, and the lithium battery module is internally provided with rectangular steel shell, boss protection board is fixedly connected at left and right sides of the module housing.The lithium battery pack grouping method, by after first going here and there and then go here and there again again and combination, the lithium battery pack grouping method is set to have high capacity, low-loss feature, and the setting of balanced silk is flowed by pressure, it is the extremely low nichrome wire of a resistance that pressure, which flows balanced silk, play the role of pressing current stabilization, setting in this way, make each single battery can be under constant voltage and current, and then the service life of each single battery is greatly ensured, meanwhile the block structure is easy to disassemble, thereby reduces maintenance cost.
Description
Technical field
The present invention relates to Combined storage battery technical field, specially a kind of lithium battery pack grouping method.
Background technique
In recent years, energy crisis and environmental degradation problem become increasingly conspicuous, and orthodox car not only consumption of fossil fuels and causes
Very big pollution, therefore increasingly drawn attention using battery as the electric car of power source.In electric car field, store
The configuration of battery uses unified structure now, is exactly first with single battery and to be unified into an electric unit, then as using
Unit is concatenated into whole group battery, and purpose in parallel is to reach required capacity, and concatenated purpose is to reach required voltage,
Simply it is expressed as × simultaneously × string.
The battery circuit of vehicle is powered using single string of batteries；Such circuit structure is to be unable to control parallel units
Cell damage.When battery is damaged, no matter how many single-unit in unit, all damage.Just because of this kind of
Damage, increases the operating cost of owner, and electric car is made to be difficult to compete with fuel vehicle；The capacity of usual unit about 50Ah~
400Ah.It is all since a battery so increasingly serious for current energy crisis in the damage of unit internal cell
Situation, the invention proposes a kind of lithium battery pack grouping methods.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of lithium battery pack grouping method, have block structure it is simple,
The advantages that group efficiency is higher, safety is higher and later maintenance is more convenient solves previous lithium battery pack grouping method in groups
Structure is complicated, grouping procedure is cumbersome, safety is general and when the single battery inconvenient maintenance when something goes wrong the problem of.
(2) technical solution
To realize that above-mentioned block structure is simple, group efficiency is higher, safety is higher and later maintenance more conveniently purpose,
The invention provides the following technical scheme: a kind of lithium battery pack grouping method, including module housing, the inside of the module housing are opened
Equipped with lithium battery fixing groove, the inside of the lithium battery fixing groove is fixedly connected with lithium battery module, the lithium battery module
It is internally provided with rectangular steel shell, boss protection board, the boss protection are fixedly connected at left and right sides of the module housing
The upper surface of plate is fixedly connected with fixed column, and the upper surface of the module housing is fixedly connected with electrode grafting stick, the module
Lead unit integrated package is fixedly connected in the middle part of housing upper surface, the side of the module housing upper surface is fixedly connected with
BMS battery management module, the corner location of the module housing upper surface are plugged with fixing bolt, and the one of the module housing
Side is fixedly connected with lateral panel, and the side of the transverse direction panel is provided with electrode hole, the other side of the module housing
It is fixedly connected with lateral matching board, the side of the transverse direction matching board is fixedly connected with electrode and matches zygostyle, the module housing
Quantity is two, and the lower surface of one of them module housing is fixedly connected with locking electrode compatible with electrode grafting stick
The outer surface of column, the locking electrode column is socketed with locked nut, is fixedly connected with cooling fin between two module housings,
The lithium battery module includes lithium battery fixed plate, and the quantity of the lithium battery fixed plate is two, and two lithium batteries are solid
Lithium battery is fixedly connected with by series-parallel system between fixed board, the cathode of the lithium battery is fixedly connected with pressure flow equilibrium silk.
Preferably, the material of the cooling fin is aluminium, and the shape of the cooling fin is the triangular prism of strip, described two-by-two
Cooperate between cooling fin close.
Preferably, the quantity of the lithium battery module is six groups, and lithium battery module described in every group is internally provided with two
Block structure.
Preferably, each individual block structure includes 120 single lithium batteries altogether, each single lithium battery it is specified
Voltage is 3.6V.
Preferably, the layout type is longitudinal four groups or laterally two groups two groups longitudinal, no matter which kind of combination,
Then four groups of block structures in parallel are first carried out for battery module and carry out concatenated mode, and the voltage class of every group of block structure exists
36V or more, first go here and there after and after voltage class at least in 200V or more.
Preferably, before in groups, the parameter of each single lithium battery need to be calibrated, the single lithium battery
Parameter includes: voltage, capacity, carried charge, internal resistance, discharge platform, constant current ratio, cycle life and self discharge, is selected to group
Lithium battery relative parameter must be consistent.
Optionally, the upper surface of the module housing is located at each lithium battery fixing groove side and is provided with current equalizer, institute
The quantity for stating current equalizer is adapted with the quantity of lithium battery fixing groove.
Optionally, the BMS battery management module is responsible for each to all series-parallel single batteries in single block structure
Item index carries out detection processing, if the electric current of the single battery is not in preset range, monomer of the multiple parameters in preset range
One battery pack to be adjusted of battery composition, BMS battery management module are sent out according to each battery pack current situation of change to current equalizer
Adjustment instruction out completes the charge or discharge process to single battery.
Optionally, no matter which kind of block structure is required to calibrate parameter of consistency after in groups, described
Parameter of consistency includes: voltage, capacity, carried charge, internal resistance, if above four index differences of four block structures,
It must calibration.
Optionally, it is nichrome that the pressure, which flows the material of balanced silk, and the shape that the pressure flows balanced silk is undaform.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of lithium battery pack grouping method, have it is following the utility model has the advantages that
1. the lithium battery pack grouping method, by after first going here and there and then go here and there again again and combination, make the lithium battery pack
Grouping method has high capacity, low-loss feature, and the setting of balanced silk is flowed by pressure, and it is a resistance that pressure, which flows balanced silk,
Extremely low nichrome wire plays the role of pressing current stabilization, and setting in this way makes each single battery can be constant
Under voltage and current, and then greatly ensure the service life of each single battery, while when a single battery damages,
It is smaller to whole influence, and impaired single battery can be very easily found out by control circuit, meanwhile, this is in groups
Structure is easy to disassemble, thereby reduces maintenance cost.
2. the lithium battery pack grouping method makes this by being equipped with for module housing, fixing bolt and locking electrode column
Lithium battery pack grouping method has efficient convenience in the assembling of outside, and when internal single battery breaks down, can
With to the fast quick-detach of module housing, thus achieve the purpose that it is convenient for safeguarding, by using the burst mode first and afterwards gone here and there, greatly
Demand of the current consuming apparatus to capacity and voltage is met, and carries out four concatenated structures again after 32 single crystal batteries parallel connections and sets
Meter, is able to satisfy voltage class at least in 400V or more, greatly improves the external electricity output of the lithium battery pack grouping method,
It ensure that the efficient convenient of the lithium battery pack grouping method, and this elder generation and the rear burst mode gone here and there, cooperate current equalizer and BSM
Control, accurately the single battery parameters in parallel-connection structure can be monitored, the result of monitoring feedback to BSM electricity
In the management module of pond, to carry out constant current constant voltage processing to some parallel-connection structure, the lithium battery pack is greatly improved into prescription
The efficient convenience of method is the triangle column construction of aluminum by cooling fin, plays dust-proof and heat dissipation purpose, and greatly
The weight for alleviating entire block structure, saved cost to a certain extent, ensured the safety of internal lithium battery in groups.
(4) Detailed description of the invention
Fig. 1 is block structure schematic diagram of housing structure of the present invention；
Fig. 2 is present invention series parallel topology structural schematic diagram in groups；
Fig. 3 is that BMS module of the present invention stress procedures system schematic diagram；
Fig. 4 is equalizing circuit system schematic of the present invention；
Fig. 5 is lithium battery pack structural schematic diagram of the present invention.
In figure: 1- module housing, 2- lithium battery fixing groove, 3- lithium battery module, 4- boss protection board, 5- fixed column, 6-
Electrode grafting stick, 7- lead unit integrated package, 8-BMS battery management module, 9- fixing bolt, 10- transverse direction panel, 11- electricity
Pole hole, 12- locking electrode column, 13- cooling fin, 14- current equalizer,
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of lithium battery pack grouping method, including module housing 1, it is solid that the upper surface of module housing 1 is located at each lithium battery
Determine 2 side of slot and be provided with current equalizer 14, the quantity of current equalizer 14 is adapted with the quantity of lithium battery fixing groove 2, module housing 1
Inside offer lithium battery fixing groove 2, the inside of lithium battery fixing groove 2 is fixedly connected with lithium battery module 3, lithium battery module
3 are internally provided with rectangular steel shell, and the quantity of lithium battery module 3 is six groups, and every group of lithium battery module 3 is internally provided with two
Block structure, battery module 3 are connected with parallel way, and each individual block structure includes 120 single lithium batteries altogether, often
The voltage rating of a single lithium battery is 3.6V, the voltage class of every group of block structure in 36V or more, after first going here and there and after electricity
Press grade at least in 200V or more, before in groups, the parameter of each single lithium battery need to be calibrated, single lithium battery
Parameter include: voltage, capacity, carried charge, internal resistance, discharge platform, constant current ratio, cycle life and self discharge, be selected to group
Lithium battery relative parameter must be consistent, no matter which kind of block structure is required to carry out school to parameter of consistency after in groups
Standard, parameter of consistency include: voltage, capacity, carried charge, internal resistance, if above four index differences of four block structures,
It must calibrate, the left and right sides of module housing 1 is fixedly connected to boss protection board 4, and the upper surface of boss protection board 4 is fixedly connected
There is fixed column 5, the upper surface of module housing 1 is fixedly connected with electrode grafting stick 6, and the middle part of 1 upper surface of module housing is fixed to be connected
It is connected to lead unit integrated package 7, the side of 1 upper surface of module housing is fixedly connected with BMS battery management module 8, BMS cell tube
It manages module 8 to be responsible for carrying out detection processing to all series-parallel single battery indices in single block structure, if monomer is electric
For the electric current in pond not in preset range, multiple parameters form a battery pack to be adjusted, BMS battery in the single battery of preset range
Management module 8 issues adjustment instruction to current equalizer 14 according to each battery pack current situation of change, and single battery is filled in completion
Electricity or discharge process, the corner location of 1 upper surface of module housing are plugged with fixing bolt 9, and the side of module housing 1 is fixed to be connected
It is connected to lateral panel 10, the side of lateral panel 10 is provided with electrode hole 11, and the other side of module housing 1 is fixedly connected with
Lateral matching board, the side of lateral matching board are fixedly connected with electrode with zygostyle, and the quantity of module housing 1 is two, wherein one
The lower surface of a module housing 1 is fixedly connected with locking electrode column 12 compatible with electrode grafting stick 6, locking electrode column 12
Outer surface is socketed with locked nut, and cooling fin 13 is fixedly connected between two module housings 1, and the material of cooling fin 13 is aluminium,
The shape of cooling fin 13 is the triangular prism of strip, is cooperated between cooling fin 13 two-by-two closely, lithium battery module 3 includes lithium battery
Fixed plate 301, the quantity of lithium battery fixed plate 301 are two, solid by series-parallel system between two lithium battery fixed plates 301
Surely it is connected with lithium battery, the cathode of lithium battery is fixedly connected with pressure flow equilibrium silk 302, and the material that pressure flows balanced silk 302 is nickel chromium triangle
Alloy, the shape that pressure flows balanced silk 302 is undaform, in the specific operation process of the lithium battery pack grouping method, in groups
Need to screen eight major parameters of each single battery before, calibrate, to pick out qualified single battery, convenient at
The stability of group structure, the content of this eight parameters are voltage, capacity, carried charge, internal resistance, discharge platform, constant current ratio, circulation longevity
Life and self discharge, voltage indexes are mainly shown as that series circuit voltage is inconsistent, will cause overshoot or over-discharge, serious person is beyond equal
Range is flowed, manager can not control battery system, to reduce the service life of block structure, parallel circuit voltage is not
Unanimously, it will do it charge and discharge balancing between each single battery, pressure difference is excessive until mutual phase voltage is consistent, but mutually, it will
Fuse wire, the permissible pressure of fuse is within 0.5V；Capacity is inconsistent to be the main reason for causing voltage inconsistent,
Under the premise of battery capacity is consistent, if carried charge is inconsistent, the phenomenon that also having overshoot and over-discharge, further there is still a need for equal
Stream device is flowed, and to reach the equilibrium of indices, after indices are carried out with accurate screening calibration, starts block structure
Design, for block structure using after first going here and there and the mentality of designing gone here and there again again simultaneously, the setting with combined pressure stream equilibrium silk ties this in groups
Structure has the ability for extending single service life of lithium battery, the overall performance of block structure while meeting capacity and properties
Of close concern to each other with the performance of each single battery, pressure flows balanced silk and stabilizes the voltage and current between each battery strings, thus
The occurrence of avoiding overshoot and over-discharge to a certain extent, and then single battery is protected, the grouping method is specific real
Saliency superiority is applied, needs to be monitored indices after the completion of block structure, the result of monitoring feeds back to BMS electricity
Pond management module, BMS battery management module send a signal to current equalizer, and current equalizer carries out charge and discharge process to each little module,
Specifically stress process have detailed Detailed description of the invention in the diagram.
The invention has the benefit that the lithium battery pack grouping method, by after first going here and there and then go here and there again again and combination
Mode makes the lithium battery pack grouping method have high capacity, low-loss feature, and the setting of balanced silk, pressure are flowed by pressure
Flowing balanced silk is the extremely low nichrome wire of a resistance, plays the role of pressing current stabilization, setting in this way makes each list
Body battery can be under constant voltage and current, and then has greatly ensured the service life of each single battery, works as simultaneously
It is smaller to whole influence when one single battery damage, and can very easily be found out by control circuit impaired
Single battery, meanwhile, the block structure is easy to disassemble, thereby reduces maintenance cost, which passes through mould
Block shell 1, fixing bolt 9 and locking electrode column 12 are equipped with, and have the lithium battery pack grouping method in the assembling of outside
Standby efficient convenience, and when internal single battery breaks down, it can be to the fast quick-detach of module housing 1, to reach
Purpose convenient for safeguarding, by using first go here and there after and again go here and there again simultaneously burst mode, greatly meet current consuming apparatus to capacity
With the demand of voltage, and 32 single crystal batteries it is in parallel after carry out four concatenated structures designs again, be able to satisfy voltage class extremely
It is few to greatly improve the external electricity output of the lithium battery pack grouping method in 400V or more, ensure that the lithium battery pack at
Group method it is efficient convenient, and it is this first go here and there after and go here and there again again and burst mode, cooperation current equalizer and BSM control, energy
Enough to be accurately monitored to the single battery parameters in parallel-connection structure, the result of monitoring is fed back to BSM battery management mould
In block, to carry out constant current constant voltage processing to some parallel-connection structure, the efficient of the lithium battery pack grouping method is greatly improved
Convenience is the triangle column construction of aluminum by cooling fin, plays dust-proof and heat dissipation purpose, and greatly alleviate
The weight of entire block structure, has saved cost to a certain extent, has ensured the safety of internal lithium battery in groups.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of lithium battery pack grouping method, which is characterized in that including module housing (1), the inside of the module housing (1) is opened
Equipped with lithium battery fixing groove (2), the inside of the lithium battery fixing groove (2) is fixedly connected with lithium battery module (3), the lithium electricity
Pond module (3) is internally provided with rectangular steel shell, is fixedly connected to boss protection board at left and right sides of the module housing (1)
(4), the upper surface of the boss protection board (4) is fixedly connected with fixed column (5), and the upper surface of the module housing (1) is fixed
It is connected with electrode grafting stick (6), is fixedly connected with lead unit integrated package (7), institute in the middle part of module housing (1) upper surface
The side for stating module housing (1) upper surface is fixedly connected with BMS battery management module (8), module housing (1) upper surface
Corner location is plugged with fixing bolt (9), and the side of the module housing (1) is fixedly connected with lateral panel (10), institute
The side for stating lateral panel (10) is provided with electrode hole (11), and the other side of the module housing (1) is fixedly connected with transverse direction
Matching board, the side of the transverse direction matching board are fixedly connected with electrode with zygostyle, and the quantity of the module housing (1) is two,
The lower surface of one of them module housing (1) is fixedly connected with the compatible locking electrode column with electrode grafting stick (6)
(12), the outer surface of locking electrode column (12) is socketed with locked nut, is fixedly connected between two module housings (1)
Have cooling fin (13), the lithium battery module (3) includes lithium battery fixed plate (301), the number of the lithium battery fixed plate (301)
Amount is two, is fixedly connected with lithium battery, the lithium electricity by series-parallel system between two lithium battery fixed plates (301)
The cathode in pond is fixedly connected with pressure flow equilibrium silk (302).
2. a kind of lithium battery pack grouping method according to claim 1, which is characterized in that the material of the cooling fin (13)
For aluminium, the shape of the cooling fin (13) is the triangular prism of strip, is cooperated between the cooling fin (13) two-by-two close.
3. a kind of lithium battery pack grouping method according to claim 1, which is characterized in that the lithium battery module (3)
Quantity is six groups, and lithium battery module described in every group (3) is internally provided with two block structures.
4. a kind of lithium battery pack grouping method according to claim 3, it is characterised in that: each individual block structure
It altogether include 120 single lithium batteries, the voltage rating of each single lithium battery is 3.6V.
5. a kind of lithium battery pack grouping method according to claim 1, which is characterized in that the layout type is longitudinal
Four groups or laterally two groups longitudinal two groups, the voltage class of every group of block structure in 36V or more, after first going here and there and after voltage class
At least in 200V or more.
6. a kind of lithium battery pack grouping method according to claim 3, which is characterized in that, need to be to each before in groups
The parameter of single lithium battery is calibrated, and the parameter of the single lithium battery includes: voltage, capacity, carried charge, internal resistance, puts
Level platform, constant current ratio, cycle life and self discharge, the lithium battery relative parameter for being selected to group must be consistent.
7. a kind of lithium battery pack grouping method according to claim 1, which is characterized in that the module housing (1) it is upper
Surface is located at each lithium battery fixing groove (2) side and is provided with current equalizer (14), quantity and the lithium electricity of the current equalizer (14)
The quantity of pond fixing groove (2) is adapted.
8. a kind of lithium battery pack grouping method according to claim 3 or 7, which is characterized in that the BMS battery management mould
Block (8) is responsible for carrying out detection processing to all series-parallel single battery indices in single block structure, if the monomer
For the electric current of battery not in preset range, multiple parameters form a battery pack to be adjusted, BMS electricity in the single battery of preset range
Pond management module (8) issues adjustment instruction to current equalizer (14) according to each battery pack current situation of change, completes to monomer electricity
The charge or discharge process in pond.
9. a kind of lithium battery pack grouping method according to claim 4, which is characterized in that no matter which kind of block structure,
It after in groups, is required to calibrate parameter of consistency, the parameter of consistency includes: voltage, capacity, carried charge, interior
Resistance, if above four index differences of four block structures, must calibrate.
10. a kind of lithium battery pack grouping method according to claim 4, which is characterized in that the pressure flows balanced silk (302)
Material be nichrome, the shape that the pressure flows balanced silk (302) is undaform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675708.XA CN110299493A (en) | 2019-07-25 | 2019-07-25 | A kind of lithium battery pack grouping method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675708.XA CN110299493A (en) | 2019-07-25 | 2019-07-25 | A kind of lithium battery pack grouping method |
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| Publication Number | Publication Date |
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| CN110299493A true CN110299493A (en) | 2019-10-01 |
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| CN201910675708.XA Pending CN110299493A (en) | 2019-07-25 | 2019-07-25 | A kind of lithium battery pack grouping method |
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| CN113036241A (en) * | 2021-03-03 | 2021-06-25 | 国轩高科美国研究院 | Battery management method, device and equipment |
| CN114628763A (en) * | 2022-03-03 | 2022-06-14 | 河南豫清新能源产业有限公司 | Lithium battery grouping method for reducing parallel connection circulation current and bias current |
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