CN111029495A - Light power battery pack structure - Google Patents
Light power battery pack structure Download PDFInfo
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- CN111029495A CN111029495A CN201911124618.8A CN201911124618A CN111029495A CN 111029495 A CN111029495 A CN 111029495A CN 201911124618 A CN201911124618 A CN 201911124618A CN 111029495 A CN111029495 A CN 111029495A
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- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- 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
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- 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
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- 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
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/647—Prismatic or flat cells, e.g. pouch cells
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- 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
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
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- 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
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- 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
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
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- 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
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- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Materials Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a light power battery pack structure which comprises a box body, a battery cell pack module, a top cover module and a bottom cover, wherein the battery cell pack module is arranged in the box body, and single lithium ion soft-packaged batteries are connected in series into a battery pack module by utilizing a plastic support, a soaking supporting plate and a connecting assembly, wherein the soft-packaged batteries are distributed in a horizontal layered manner; a side soaking plate is arranged between the inner side of the box body and the battery pack module, and a sealing design is arranged between the box body and the top cover and the bottom cover; the top cover module comprises a charging socket, a discharging socket, an antenna terminal, a BMS board and a communication module board; the upper end of the bottom cover is provided with a limit groove. The battery cell pack has the advantages of stable structure, good heat dissipation effect, reasonable structure of the battery cell pack, long service life and compact integral structure.
Description
The technical field is as follows:
the invention relates to the field of packaging of soft package batteries, in particular to a light power battery pack structure.
Background art:
with the development of the new energy automobile market, the new energy automobile in China has already achieved remarkable development achievements and has already gained a certain popularization. Under the large environment of new energy development, the new energy light power carrier is also popularized vigorously. The light-duty power battery market comprises electric two-wheeled vehicles, electric tricycles, low-speed electric vehicles, field patrol cars and small-sized tourism sightseeing vehicles.
In recent years, the takeout and express delivery industries of China are rapidly developed, and the demand for light power vehicles is sharply increased. The light power battery is taken as a core component, and is reliably, scientifically and safely assembled, which is always an important technical problem in the field of light power battery packaging.
Battery pack generally refers to the packaging, packaging and assembly of cells into finished battery packs for practical use. At present, the battery pack industry still belongs to emerging industries in China, technologies, equipment and the like are immature, and the overall quality of technicians is not high. Meanwhile, the pack process technology threshold is high, so that the entering of the industry faces a large difficulty. The existing battery assembly technology is mainly suitable for lead-acid storage batteries, the pack process in lithium batteries is mainly used for 18650 and 21700 batteries, and a good pack structure and process are not provided for soft package batteries.
The invention content is as follows:
the invention aims to provide a light power battery pack structure for a light power carrier, which solves the problems that the existing soft package lithium ion battery is too complex in packaging, inconvenient to replace and maintain, unstable in structure, poor in heat dissipation effect and poor in safety performance in the driving process of the light power carrier.
The technical scheme adopted by the invention is as follows:
a light power battery pack structure comprises an upper cover, an upper cover component, a bottom cover, a graphene lithium ion cell and a case shell, wherein a plurality of graphene lithium ion cells are horizontally overlapped and mutually connected in series to form a cell pack module; the upper cover subassembly is including charging socket, the socket that discharges, the antenna terminal, communication module, the BMS board, anodal spliced pole and negative pole spliced pole, the positive pole of the socket that charges and the positive pole of the socket that discharges all correspond and link to each other with anodal spliced pole, the negative pole of the socket that charges and the negative pole of the socket that discharges all correspond and link to each other with the negative pole spliced pole, communication module passes through the CAN mouth and is connected with the BMS board, the positive pole of establishing ties of electricity core pack module passes through the electric wire and is connected with anodal spliced pole, the negative pole of establishing ties passes through the electric wire and is connected with the B-port in the BMS board, P-port in the BMS board.
Furthermore, the capacity of the graphene lithium ion battery is 26Ah, two tabs are arranged on each graphene lithium ion battery, and the two tabs are arranged in a reverse symmetrical manner.
Furthermore, the number of the graphene lithium ion batteries is 16, the 16 graphene lithium ion batteries are horizontally overlapped, and lugs on two adjacent graphene lithium ion batteries are connected in series in a laser welding mode; and a high-temperature-resistant foam board is arranged between two adjacent graphene lithium ion batteries.
Furthermore, the lugs of the adjacent graphene lithium ion batteries are connected through copper sheets, each copper sheet is connected with a bus bar, and the bus bars are connected with the BMS board through patch cords.
Further, on the vertical attached outer wall with electric core pack module of cylinder manifold, and the cylinder manifold is located between the two pole ears on the graphite alkene lithium ion battery.
Further, graphite alkene lithium ion cell in the electric core pack module passes through coupling assembling and links as an organic whole, coupling assembling includes plastics top frame, plastics underframe, plastic support A and plastic support B, and eight plastic support A and eight plastic support B superpose and arrange integratively and place in between plastics top frame and the plastics underframe, and a plastic support A and a plastic support B stagger each other and arrange, all install a slice graphite alkene lithium ion cell in every plastic support A and every plastic support B.
Further, on all fixing a soaking aluminum layer board in every plastic support A and every plastic support B, graphite alkene lithium ion electric core corresponds lays on soaking aluminum layer board, is equipped with side soaking aluminum plate between case shell inside wall and electric core pack module, and the last reason of side soaking aluminum plate passes through the glue adhesion with plastics top frame, 16 pieces soaking aluminum layer boards with side soaking aluminum plate contacts, and side soaking aluminum plate contacts with the case shell.
Furthermore, the box body shell is of a rectangular structure and is made of aluminum alloy, connecting screw holes are formed in the corresponding positions of the top end and the bottom end of the box body shell, and each screw hole is connected with one connecting screw in a threaded mode.
Furthermore, all be equipped with fixed screw around upper cover and the bottom, upper cover and bottom correspond through fixed screw and the connecting screw fixed connection on the box shell.
Further, be equipped with on the up end of bottom cover and be used for carrying on spacing groove to electric core pack module.
The invention has the following beneficial effects:
1) according to the invention, the graphene lithium ion battery cell is mounted by using the horizontal layered structure to form the battery cell pack module, so that the mounting is convenient, the yield of finished products is high, the production efficiency is improved, and meanwhile, the arrangement of the horizontally arranged battery cell structure is beneficial to the uniform distribution of electrolyte and the protection of a tab, so that the service life of the battery is prolonged;
2) the battery cores are all arranged in the plastic support, the integral structure degree is large, the battery support can adapt to large vibration in the use process of a light power carrier, and meanwhile, damage caused by accidental collision in battery replacement is avoided;
3) in the cell module, each cell is contacted with the soaking aluminum supporting plate, and the side soaking aluminum plate is contacted with the aluminum shell to form a good heat dissipation structure.
Description of the drawings:
in order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments will be described with reference to the accompanying drawings. It is to be understood that the disclosed embodiments are only a few, and not all, of the disclosed embodiments of the invention. Other embodiments obtained by persons skilled in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.
Fig. 1 is a schematic diagram of a cell pack module according to the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
fig. 3 is a schematic view of a graphene lithium ion battery cell according to the present invention;
FIG. 4 is a schematic view of the structure of the upper cover assembly of the present invention;
FIG. 5 is a bottom view of the present invention;
FIG. 6 is a schematic view of the housing of the present invention;
FIGS. 7 and 8 are schematic structural views of a plastic stent A and a plastic stent B according to the present invention;
fig. 9 is a schematic structural diagram of fixedly mounting graphene lithium ion batteries by using a plastic support a and a plastic support B in the present invention.
The reference numbers in the figures illustrate: 1. an upper cover; 2. an upper cover assembly; 3. a battery cell pack module; 4. laterally soaking the aluminum plate; 5. a bus bar; 6. a bottom cover; 7. a plastic top frame; 8. a plastic bottom frame; 9. a red copper sheet; 10. a plastic bracket A; 11. a plastic bracket B; 12. soaking the aluminum supporting plate; 13. a tab; 14. a graphene lithium ion battery cell; 15. a charging socket; 16. a discharge socket; 17. an antenna terminal; 18. a communication module; 19. a BMS board; 20. a positive connecting column; 21. a negative connecting column; 22. a limiting groove; 23. fixing screw holes; 24. a box shell.
The specific implementation mode is as follows:
to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a complete description will be given below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all the embodiments. Based on the embodiments of the present invention, those skilled in the art can obtain the embodiments without creative efforts, and all of them belong to the protection scope of the present invention.
As shown in fig. 1 to 6, the light power battery pack structure of the invention comprises an upper cover 1, an upper cover assembly 2, a bottom cover 6, a graphene lithium ion battery cell 14 and a case 24, wherein a plurality of graphene lithium ion battery cells 14 are horizontally stacked and are mutually connected in series to form a battery cell pack module 3, the battery cell pack module 3 is arranged in the case 24, the upper cover 1 and the bottom cover 6 are hermetically connected at the upper end and the lower end of the case 24, and the upper cover assembly 2 is arranged in the upper cover 1.
The upper cover assembly 2 comprises a charging socket 15, a discharging socket 16, an antenna terminal 17, a communication module 18, a BMS board 19, a positive connecting column 20 and a negative connecting column 21, wherein the positive electrode of the charging socket 15 and the positive electrode of the discharging socket 16 are correspondingly connected with the positive connecting column 20, the negative electrode of the charging socket 15 and the negative electrode of the discharging socket 16 are correspondingly connected with the negative connecting column 21, the communication module 18 is connected with the BMS board 19 through a CAN (controller area network) port, the serial positive electrode of the cell pack module 3 is connected with the positive connecting column 20 through a wire, the serial negative electrode of the cell pack module 3 is connected with a B-port in the BMS board 19 through a wire, a P-port in the BMS board 19 is connected with the negative connecting column 21, and the antenna terminal 17 is connected with the communication module.
The capacity of the graphene lithium ion battery 14 is 26Ah, the graphene lithium ion battery is packaged by aluminum plastic, two tabs 13 are arranged on each graphene lithium ion battery 14, and the two tabs 13 are arranged in a reverse symmetrical mode.
The number of the graphene lithium ion batteries 14 is 16, the 16 graphene lithium ion batteries 14 are horizontally overlapped, and the tabs 13 on two adjacent graphene lithium ion batteries 14 are connected in series in a laser welding mode; and a high-temperature-resistant foam board is arranged between two adjacent graphene lithium ion batteries 14. High temperature resistant foam boards may be used to adjust the gap.
The graphene lithium ion battery 14 is horizontally placed, so that the electrolyte is uniformly distributed, the protection of the tabs 13 is facilitated, and the service life of the battery is prolonged.
The lugs 13 on the adjacent graphene lithium ion batteries 14 are connected through the red copper sheets 9, each red copper sheet 9 is connected with one bus board 5, and the bus boards 5 are connected with the BMS board 19 through patch cords, so that the battery temperature, voltage and current can be monitored.
On the vertical attached and electric core pack module 3's of cylinder manifold 5 outer wall, and cylinder manifold 5 is located two pole ears 13 on graphite alkene lithium ion battery 14 between.
The graphene lithium ion cell 14 in the cell pack module 3 is connected into a whole through the connecting component, and the specific composition structure of the connecting component is described in detail as follows:
the connecting assembly comprises a plastic top frame 7, a plastic bottom frame 8, plastic supports A10 and plastic supports B11, eight plastic supports A10 and eight plastic supports B11 are arranged in a stacked mode and are arranged between the plastic top frame 7 and the plastic bottom frame 8, one plastic support A10 and one plastic support B11 are arranged in a staggered mode, and one graphene lithium ion battery cell 14 is arranged in each plastic support A10 and each plastic support B11.
For the convenience of better heat dissipation, all fix a soaking aluminum layer board 12 in every plastic support A10 and every plastic support B11 on, graphite alkene lithium ion cell 14 corresponds lays on soaking aluminum layer board 12, is equipped with side soaking aluminum plate 4 between case shell 24 inside wall and electric core pack module 3, and the last reason of side soaking aluminum plate 4 passes through the glue adhesion with plastics top frame 7, 16 pieces of soaking aluminum layer board 12 with side soaking aluminum plate 4 contact, side soaking aluminum plate 4 and case shell 24 contact. 16 soaking aluminum layer boards 12 contact with the side soaking aluminum plate 4 in the electric core pack module outside, and side soaking aluminum plate 4 contacts with the aluminum alloy box shell, forms good soaking heat radiation structure.
The battery cell pack module 3 is formed by connecting single-sheet graphene lithium ion batteries 14 in series into the battery cell pack module 3 by utilizing a plastic support A10, a plastic support B11 and a soaking aluminum supporting plate 12, the graphene lithium ion batteries 14 are horizontally distributed in a layered manner, and the lug 13 of each battery cell is reversely arranged with the adjacent battery cell lug 13 so as to complete series welding between the anode and the cathode lug 13.
With reference to fig. 7 to 9, the following describes the structure of the plastic support a10 and the plastic support B11 and the fixing manner for fixing the graphene lithium ion battery cell 14 in detail:
the plastic support A10 is the same as the plastic support B11 in structure and comprises a body 110 of a rectangular frame structure, the body 110 is of a rectangular frame structure with three mortise and tenon edges 1101 and one lug pressing edge 1102, the upper end faces and the lower end faces of the three mortise and tenon edges 1101 are flush, the upper end face of the lug pressing edge 1102 is lower than the upper end face of the mortise and tenon edge 1101, an inward concave groove portion 1105 is formed between the upper end face of the lug pressing edge 1102 and the upper end face of the adjacent mortise and tenon edge 1101, the lower end face of the lug pressing edge 1102 is higher than the lower end face of the mortise and tenon edge 1101, an outward convex boss portion 1106 is formed between the lower end face of the lug pressing edge 1102 and the lower end face of the adjacent mortise and tenon edge 1101, and the height of the boss portion 1106 is matched with the depth of the groove portion.
A rectangular table 1107 is arranged in the middle of the groove portion 1105, and the upper end face of the rectangular table 1107 is flush with the upper end face of the mortise and tenon edge 1101. The rectangular platform 1107 divides the groove portion 1105 into two tab slots 120, four copper sheet positioning columns 122 are arranged on the outer side surface of the tab pressing edge 1102, every two copper sheet positioning columns 122 are in a group and are correspondingly arranged below one tab slot 120, and a rectangular groove 1108 matched with the rectangular platform 1107 is arranged on the boss portion 1106.
The upper end surfaces of the three mortise-tenon edges 1101 are provided with side waist-shaped bosses 117 and bottom corner end waist-shaped bosses 119, and the lower end surfaces are provided with side waist-shaped grooves 111 and bottom corner end waist-shaped grooves 113 which are correspondingly matched with the side waist-shaped bosses 117 and the bottom corner end waist-shaped bosses 119.
The plurality of plastic supports are mutually spliced through mortise and tenon, a graphene lithium ion battery cell 14 is arranged in each plastic support, the horizontal surface of a tab 13 in each graphene lithium ion battery cell 14 is pressed between the boss part 1106 and the tab clamping groove 120, and the vertical surface of the tab 13 is attached to the outer wall surface of the tab pressing edge 1102 and fixed on the outer wall surface of the tab pressing edge 1102 through screws.
The side waist-shaped groove 111 and the side waist-shaped boss 117 are arranged on mortise and tenon edges 1101 at two sides of the body 110, three side waist-shaped grooves are arranged at each side, so that the supports are combined in a stacking mode, and the side waist-shaped groove 111 and the side waist-shaped boss 117 are spliced in a mortise and tenon mode. The bottom corner end waist-shaped groove 113 and the bottom corner end waist-shaped boss 119 are arranged on the bottom corner side of the support frame body, two brackets are arranged on each side, the supports are combined in a stacking mode, and the bottom corner end waist-shaped groove 113 and the bottom corner end waist-shaped boss 119 are spliced in a mortise and tenon mode.
A lug end waist-shaped groove 112 is arranged on the rectangular table 1107, and a lug end waist-shaped boss 118 matched with the lug end waist-shaped groove 112 is arranged on the rectangular groove 1108. The support is combined in a laminating mode, and the lug end waist-shaped groove 112 and the lug end waist-shaped boss 118 are spliced in a mortise and tenon mode.
The boss portion 1106 is opposite to the tab locking groove 120 so as to fix the tab 13 after the bracket assembly, and the tab locking groove 120 is used for attaching the tab 13.
A tab fixing screw hole 121 is formed between two copper sheet positioning columns 122 in each group, the tab fixing screw hole 121 is formed in the side surface of the boss portion 1106 so as to fix the tab 13 by using a pressing strip and a screw, and the copper sheet positioning columns 122 fix the copper sheets.
The inner wall of one side mortise and tenon edge 1101 parallel to the tab pressing edge 1102 in the body 110 is provided with a bottom corner support boss 114, and two ends of the bottom corner support boss 114 correspond to and form a core bottom corner groove 115 with the adjacent mortise and tenon edge 1101. The base angle support boss 114 is disposed inside the base angle of the support frame to support the end surface of the cell base angle 141. The cell corner groove 115 leaves space for the cell corner 141 to prevent it from wearing in shock.
The body 110 is made of ABS added with flame retardant, and the flame retardant grade is determined according to the product requirements, so that the frame body of the bracket is insulated and flame retardant. The mortise and tenon edge 1101 and the tab pressing edge 1102 are integrally formed.
The plastic support (plastic support A10 and plastic support B11) for fixing the graphene lithium ion battery cell is provided with nine grooves in total, wherein the nine grooves comprise three pairs of side waist-shaped grooves 111, one lug end waist-shaped groove 112 and two bottom corner end waist-shaped grooves 113; nine bosses are arranged on the boss surface of the support, and comprise three pairs of side waist-shaped bosses 117, a lug end waist-shaped boss 118 and two bottom corner end waist-shaped bosses 119;
during installation, the graphene lithium ion cell 14 is arranged in a plastic support (a plastic support A10 and a plastic support B11), the bottom corner support table 114 on the inner side of the support frame supports the bottom of the graphene lithium ion cell 14, and the cell bottom corner groove 115 provides a space for the cell bottom corner 141 to prevent abrasion; the support frame bodies are combined in a laminating mode, the groove surface of each support corresponds to the boss surface of each support, and adjacent supports are combined in a mortise and tenon connection mode of nine bosses and nine grooves; the boss portion 1106 is fitted with the tab catching groove 120 to fix the tab; the tab 13 is processed by laser welding, and the welded tab 13 is fixed on the support by matching a pressing strip and a screw with a tab fixing screw hole.
The plastic support A10 and the plastic support B11 are in bolt-free mortise and tenon structural design, the framework is simple, stable and firm, the structural strength of the battery cell module is enhanced, the installation is convenient and fast, and the installation and production efficiency can be improved. The mortise and tenon structural design without screws enables the battery cell to be effectively prevented from being punctured and scratched in the installation process, and the product yield is improved. The mortise and tenon structural layer of the support frame body is designed in a stacking mode, so that the battery box body can adapt to different types, and the battery cell module has good adaptability.
The box body shell 24 is of a rectangular structure and made of aluminum alloy, connecting screw holes are formed in the corresponding positions of the top end and the bottom end of the box body shell 24, and each screw hole is connected with one connecting screw in a threaded mode.
All be equipped with fixed screw 23 around upper cover 1 and bottom 6, upper cover 1 and bottom 6 correspond through fixed screw 23 with the connecting screw fixed connection on the box shell 24.
Carry out spacing fixed to electric core pack module 3 for being convenient for better, be equipped with on the up end of bottom 6 and be used for carrying out spacing groove 22 to electric core pack module 3.
Two sides of electric core pack module 3 are equipped with side soaking aluminum plate 4, side soaking aluminum plate 4 makes soaking aluminum layer board 12 be connected with aluminium system case shell 14, form soaking cooling system, every graphite alkene lithium ion cell 14 can all obtain good soaking, the radiating effect, be connected with every welded utmost point ear 13 and red copper sheet 9, red copper sheet 9 is being connected with cylinder manifold 5, cylinder manifold 5 passes through the patch cord with BMS board 19 and is connected, the realization is to the control of battery temperature, voltage and electric current. Case shell 24 is the aluminum alloy material, has sealed design between case shell 24 and upper cover 1 and the bottom 6, is equipped with the screw all around the case shell upper and lower end, realizes upper cover 1 and bottom 6's being connected.
One specific application of this embodiment is:
when in use, 16 soaking aluminum pallets 12 are respectively arranged on a plastic bracket A10 and a plastic bracket B11, a plastic bracket B11 is arranged on a plastic bottom frame 8, and the two are compacted by a tool.
The copper sheets are installed at one end of the plastic frame B11, one graphene lithium ion cell 14 is arranged in the plastic frame B11, a negative electrode tab faces downwards and is attached to the copper sheets 9, then the plastic support A10 is arranged, the direction of the battery tab is opposite to that of the first layer when the graphene lithium ion cell 14 is installed, so that batteries are connected in series, the same method is used for stacking, 16 plastic supports and cells are installed, then the plastic top frame is installed, finally, tools are used for integrally compacting the module, and the compact structure is guaranteed.
And arranging the bus board 5 at the front end of the battery cell pack module 3, and performing laser welding on each red copper sheet and the corresponding welding spot of the bus board. Side soaking aluminum plate 4 is installed at the side of electricity core pack module 3, uses glue will incline soaking aluminum plate 4's the reason of going up and the gluing of plastics top frame 7 to remain stable when installing the case shell. Install electric core pack module 3 on bottom 6, the compaction is sheathe the case shell, then will assemble the upper cover 1 that finishes and install upper cover assembly 2 with electric core pack module 3 after being connected upper cover 1, respectively install 10 screws on upper cover 1 and bottom 6 at last.
In the description herein, references to "an embodiment" or the like are intended to mean that a feature, structure, material, or method that incorporates the embodiment is included in at least one embodiment of the invention. In the present specification, the schematic expressions of the above terms are not necessarily the same embodiment. The particular features, structures, materials, or methods described may be combined in any suitable manner in any one or more embodiments.
The present invention is described above with reference to the accompanying drawings, for the purpose of better explaining the principles and practical applications of the present invention, so that those skilled in the art can better understand and apply the present invention. Obviously, many modifications and variations are possible in light of the above teaching. The invention is in the scope of protection only if various modifications are made to the method concept and technical scheme of the invention, or the concept and technical scheme of the invention is directly applied to other occasions without modification.
Claims (10)
1. The utility model provides a light-duty power battery pack structure which characterized in that: the battery cell pack module comprises an upper cover (1), an upper cover component (2), a bottom cover (6), graphene lithium ion cells (14) and a case shell (24), wherein a plurality of graphene lithium ion cells (14) are horizontally stacked and are mutually connected in series to form a battery cell pack module (3), the battery cell pack module (3) is arranged in the case shell (24), the upper cover (1) and the bottom cover (6) are hermetically connected to the upper end and the lower end of the case shell (24), and the upper cover component (2) is arranged in the upper cover (1); the upper cover assembly (2) comprises a charging socket (15), a discharging socket (16), an antenna terminal (17), a communication module (18), a BMS board (19), a positive connecting column (20) and a negative connecting column (21), the positive pole of the socket (15) that charges and the positive pole of the socket (16) that discharges all correspond and link to each other with anodal spliced pole (20), the negative pole of the socket (15) that charges and the negative pole of the socket (16) that discharges all correspond and link to each other with negative pole spliced pole (21), communication module (18) are connected with BMS board (19) through the CAN mouth, the series connection positive pole of electricity core pack module (3) passes through the electric wire and is connected with anodal spliced pole (20), the series connection negative pole passes through the electric wire and is connected with the B-port in BMS board (19), the P-port in BMS board (19) links to each other with negative pole spliced pole (21), antenna terminal (17) is connected on communication module (18).
2. The lightweight power cell pack structure of claim 1, wherein: the capacity of the graphene lithium ion battery (14) is 26Ah, two tabs (13) are arranged on each graphene lithium ion battery (14), and the two tabs (13) are arranged in a reverse symmetrical mode.
3. The lightweight power cell pack structure of claim 2, wherein: the graphene lithium ion batteries (14) are provided with 16 pieces, the 16 pieces of graphene lithium ion batteries (14) are horizontally overlapped, and lugs (13) on two adjacent graphene lithium ion batteries (14) are connected in series in a laser welding mode; and a high-temperature-resistant foam board is arranged between two adjacent graphene lithium ion batteries (14).
4. The lightweight power cell pack structure of claim 3, wherein: the lugs (13) on the adjacent graphene lithium ion batteries (14) are connected through the red copper sheets (9), each red copper sheet (9) is connected with one bus board (5), and the bus boards (5) are connected with the BMS board (19) through patch cords.
5. The lightweight power cell pack structure of claim 4, wherein: the bus bar (5) is vertically attached to the outer wall of the battery cell pack module (3), and the bus bar (5) is located between two tabs (13) on the graphene lithium ion battery (14).
6. The lightweight power cell pack structure of claim 3, wherein: graphene lithium ion cell (14) in electric core pack module (3) are linked together through coupling assembling, coupling assembling includes plastics top frame (7), plastics underframe (8), plastic support A (10) and plastic support B (11), and eight plastic support A (10) and eight plastic support B (11) superposes and arranges into an organic whole and place between plastics top frame (7) and plastics underframe (8), and stagger each other and arrange a slice graphene lithium ion cell (14) in every plastic support A (10) and every plastic support B (11).
7. The lightweight power cell pack structure of claim 6, wherein: on all fixing a soaking aluminum layer board (12) in every plastic support A (10) and every plastic support B (11), graphite alkene lithium ion cell (14) correspond lay in soaking aluminum layer board (12), be equipped with side soaking aluminum plate (4) between case shell (24) inside wall and electric core pack module (3), the last reason of side soaking aluminum plate (4) passes through the glue adhesion with plastics top frame (7), 16 pieces soaking aluminum layer board (12) with side soaking aluminum plate (4) contact, side soaking aluminum plate (4) and case shell (24) contact.
8. The lightweight power cell pack structure of claim 1, wherein: the box body shell (24) is of a rectangular structure and is made of aluminum alloy, connecting screw holes are formed in the corresponding positions of the top end and the bottom end of the box body shell (24) at the periphery, and each screw hole is connected with one connecting screw in a threaded mode.
9. The lightweight power cell pack structure of claim 8, wherein: all be equipped with fixed screw (23) around upper cover (1) and bottom (6), upper cover (1) and bottom (6) correspond through fixed screw (23) with the connecting screw fixed connection on box shell (24).
10. The lightweight power cell pack structure of claim 1, wherein: and a limiting groove (22) for limiting the battery cell pack module (3) is arranged on the upper end face of the bottom cover (6).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107612073A (en) * | 2017-09-26 | 2018-01-19 | 珠海银隆电器有限公司 | A kind of battery charge-discharge circuit, electrokinetic cell system and power battery box |
| CN209607788U (en) * | 2019-03-04 | 2019-11-08 | 无锡至极动能科技有限公司 | A kind of radiator of soft-package battery mould group |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612073A (en) * | 2017-09-26 | 2018-01-19 | 珠海银隆电器有限公司 | A kind of battery charge-discharge circuit, electrokinetic cell system and power battery box |
| CN209607788U (en) * | 2019-03-04 | 2019-11-08 | 无锡至极动能科技有限公司 | A kind of radiator of soft-package battery mould group |
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Application publication date: 20200417 |