CN116742279A - Welding-free energy storage battery system - Google Patents
Welding-free energy storage battery system Download PDFInfo
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- CN116742279A CN116742279A CN202311000459.7A CN202311000459A CN116742279A CN 116742279 A CN116742279 A CN 116742279A CN 202311000459 A CN202311000459 A CN 202311000459A CN 116742279 A CN116742279 A CN 116742279A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 36
- 239000000523 sample Substances 0.000 claims abstract description 34
- 238000005070 sampling Methods 0.000 claims abstract description 28
- 230000000712 assembly Effects 0.000 claims abstract description 7
- 238000000429 assembly Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 21
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 238000007747 plating Methods 0.000 claims description 6
- 238000002788 crimping Methods 0.000 claims description 4
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000012983 electrochemical energy storage Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
-
- 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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
-
- 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
- H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
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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
- H01M50/271—Lids or covers for the racks or secondary casings
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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
- H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
-
- 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
- H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
-
- 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
- H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
-
- 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
- H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
- H01M50/522—Inorganic material
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
- H01M50/526—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material having a layered structure
-
- 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
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a welding-free energy storage battery system. The energy storage system solves the problems that an energy storage system in the prior art is complex in assembly process, difficult to maintain, difficult to recycle after service life is ended and high in investment cost. The electric core loading cavity is formed in the circumferential inner side of the lower tray, an electric core group is arranged in the electric core loading cavity, the upper end face of the electric core group is provided with an ejector pin structure which is electrically connected with each other, the upper end face of the lower tray is sealed through an upper cover assembly, probe assemblies which are arranged in one-to-one correspondence with the ejector pin structure are arranged in the upper cover assembly, two adjacent probe assemblies are connected through bus bars, and the bus bars are connected with the sampling assembly. The invention has the advantages that: the process has the advantages of simple structure, convenience in maintenance, capability of recycling, low use cost, capability of meeting the energy storage systems under different working conditions, and capability of ensuring contact pressure within a certain range under a certain spring stroke, thereby ensuring sufficient and suitable overcurrent capacity.
Description
Technical Field
The invention relates to the technical field of power energy storage systems, in particular to a welding-free energy storage battery system.
Background
The electrochemical energy storage system can store and release electric energy among the power generation side, the power grid side and the user side, and has the functions of peak clipping and valley filling, peak regulation and frequency modulation, cooperation with new energy power generation and grid connection and the like. The electrochemical energy storage takes a lithium battery system as a main application direction, the traditional energy storage system scheme is generally composed of module, PACK, rack and container system layers, and the traditional battery modules such as modules and PACKs are welded by bus bars and electric core pole columns. The existing battery energy storage processing mode not only consumes a large amount of lead raw materials, but also is easy to generate infirm welding such as chip falling, welding omission and the like; in addition, the current energy storage system has complex assembly process, difficult product maintenance, difficult recycling after the service life is finished and high investment cost.
In order to solve the defects existing in the prior art, long-term exploration is performed, and various solutions are proposed. For example, chinese patent literature discloses a continuous welding-free lead storage battery electrode group [ CN201820986614.5], which comprises a continuous positive plate, a continuous negative plate, a cross-monomer connecting sheet, a continuous bipolar plate and a separator, wherein the continuous bipolar plate is composed of a continuous positive plate, a continuous negative plate and a separator which are in plug-in fit. The patent carries out integrated continuous design on the lead storage battery pole group, eliminates the welding procedures of a plurality of positive plates or negative plates in the pole plate group in the production process of the storage battery, and also eliminates the series-parallel welding procedures of bridging welding, wall penetrating welding and the like among a plurality of monomers of the storage battery.
The above-mentioned scheme has solved battery energy storage processing mode and has consumed the raw materials in the prior art to a certain extent, and easy welding is not firm problem moreover, but this scheme still has a great deal of shortages, for example: the process is complex, the product maintenance is difficult, the recycling is difficult to carry out after the service life is finished, and the investment cost is high.
Disclosure of Invention
The invention aims to solve the problems and provide a welding-free energy storage battery system.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a exempt from to weld energy storage battery system, includes the lower tray, and lower tray circumference inboard forms electric core and loads the chamber, and electric core loads the intracavity and is equipped with electric core group in, and electric core group up end is equipped with the thimble structure of mutual electric connection, and lower tray up end is sealed through the upper cover subassembly, and is equipped with the probe subassembly that sets up with thimble structure one-to-one in the upper cover subassembly, connects through the busbar between the two adjacent of probe subassembly, and the busbar links to each other with the sampling subassembly.
The scheme adopts the thimble structure to realize crimping contact type, breaks the inherent type of the original battery PACK and module, thereby realizing avoiding the process of welding and repairing operation in a PACK factory, having simple process structure, convenient maintenance, being capable of recycling and low use cost.
In the welding-free energy storage battery system, the thimble structure comprises a connecting ejector rod, a pressing seat is arranged at the bottom of the connecting ejector rod, an overcurrent pressing contact surface is arranged at the bottom of the pressing seat, the overcurrent pressing contact surface is electrically connected with the battery cell group, a cover plate fixing disc body is arranged on the connecting ejector rod, and a jacking spring sleeved on the connecting ejector rod is arranged between the cover plate fixing disc body and the pressing seat.
The use working conditions of different currents can be realized through different pretightening forces of the jacking springs by the voltage needle and the current needle, and the energy storage system of different working conditions is satisfied.
In the welding-free energy storage battery system, the diameter of the compression joint seat and the diameter of the cover plate fixing disc body are larger than those of the connecting jacking rod, a jacking gap is formed between the compression joint seat and the cover plate fixing disc body, the jacking spring is arranged in the jacking gap, and the cover plate fixing disc body is arranged on the upper end face of the upper cover assembly and applies a fixing and pressing acting force to the upper cover assembly.
In the welding-free energy storage battery system, the thimble structure is made of copper alloy material, and silver plating and gold plating treatment are carried out on the surface of the thimble structure.
In the welding-free energy storage battery system, the probe assembly comprises a probe rod, the probe rod is arranged on the upper end face of the upper cover assembly, a fixing nut is arranged on the probe rod, a fixing seat is arranged at the lower end of the fixing nut, the fixing seat is abutted to the cover plate fixing disc body, a fixing gap is formed between the fixing seat and the fixing nut, and one end of the bus bar is arranged in the fixing gap.
In the welding-free energy storage battery system, the probe rod and the connecting ejector rod are integrally formed, and the probe rod is provided with the external thread part.
In the welding-free energy storage battery system, the sampling assembly comprises sampling plates arranged between two rows of adjacent probe assemblies, a plurality of sampling support plates are arranged on two sides of each sampling plate, and the sampling support plates are connected with the bus bars.
In the welding-free energy storage battery system, the upper cover assembly comprises a sealing cover plate, upper cover brackets are arranged on two sides of the sealing cover plate, an electric core positioning cavity is formed in the inner side of the circumference of the bottom of the sealing cover plate, and a sealing belt is arranged between the circumference of the electric core assembly and the sealing cover plate.
In the welding-free energy storage battery system, the system is arranged in the installation rack in a stacked mode and is pressed in a layered mode, the installation rack is of a layered structure, and pressing blocks used for pressing the upper cover support are arranged on the inner circumferential wall of each layer.
In the welding-free energy storage battery system, the pressing plate is arranged on the upper cover assembly and is pressed by the bolts or the air cylinders.
Compared with the prior art, the invention has the advantages that:
1. the assembly of the modules, pack and rack is avoided, the used corresponding materials are correspondingly reduced, the corresponding battery box body, the battery rack, the end plate, the bus bar, various fasteners, the wire harness and the like are reduced, and the complexity of the whole system is reduced;
2. the series of procedures of the assembly process of the module, the pack and the rack are correspondingly reduced, and the series of procedures of cell sorting, cell gluing and stacking, serial-parallel bus bar laser welding between cells, sampling wire harness or acquisition board mounting and welding and the like are included;
3. the product is convenient and simple to maintain, single battery core is damaged, single battery core isolation can be realized, and as the system has no bus bar welding, no module section side plate welding and structural adhesive adhesion, battery core replacement can be realized only by independently loosening a battery core clamping and thimble structure, and the press block can be put into use after being restored to clamp, so that the whole process does not influence the use of other battery cores and materials, and the maintenance time is low and the cost is low;
4. the battery system can realize the use working conditions of different currents through selecting different thimble structures and different spring pretightening forces, and the voltage needle and the current needle can meet the energy storage systems of different working conditions;
5. the battery system parts can be simply treated and recycled without destructive maintenance, and are beneficial to recycling.
Drawings
FIG. 1 is a basic structural composition diagram in the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is an exploded view of the present invention;
FIG. 4 is a schematic view of a seal cap plate structure in accordance with the present invention;
FIG. 5 is a schematic view of a thimble structure and probe assembly mechanism of the present invention;
fig. 6 is an assembly view of the present invention in a mounting rack.
In the figure: the lower tray 1, the battery cell loading cavity 11, the battery cell group 2, the thimble structure 3, the connecting mandril 31, the compression joint seat 32, the overcurrent compression joint contact surface 33, the cover plate fixing tray 34, the jacking spring 35, the jacking gap 36, the upper cover assembly 4, the sealing cover plate 41, the upper cover bracket 42, the sealing belt 43, the probe assembly 5, the probe rod 51, the fixing nut 52, the fixing seat 53, the external thread part 54, the bus bar 6, the sampling assembly 7, the sampling plate 71, the sampling support plate 72, the mounting rack 8, the pressing block 81 and the pressing plate 82.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
As shown in fig. 1-6, a welding-free energy storage battery system comprises a lower tray 1, wherein a battery core loading cavity 11 is formed on the inner side of the lower tray 1 in the circumferential direction, a battery core group 2 is loaded in the battery core loading cavity 11, thimble structures 3 which are electrically connected with each other are arranged on the upper end face of the battery core group 2, the upper end face of the lower tray 1 is sealed through an upper cover assembly 4, probe assemblies 5 which are arranged in one-to-one correspondence with the thimble structures 3 are arranged in the upper cover assembly 4, two adjacent probe assemblies 5 are connected through bus bars 6, and the bus bars 6 are connected with a sampling assembly 7.
The thimble structure 3 comprises a connecting mandril 31, a pressing seat 32 is arranged at the bottom of the connecting mandril 31, an overcurrent pressing contact surface 33 is arranged at the bottom of the pressing seat 32, the overcurrent pressing contact surface 33 is electrically connected with the battery cell group 2, a cover plate fixing disc 34 is arranged on the connecting mandril 31, and a jacking spring 35 sleeved on the connecting mandril 31 is arranged between the cover plate fixing disc 34 and the pressing seat 32.
Here can be through selecting different thimble structures 3 to change the pretightning force of roof pressure spring 35, voltage needle, current needle can realize the operating mode of different electric currents size, satisfy the energy storage system of different operating modes.
The diameter of the compression joint seat 32 and the cover plate fixing disc 34 is larger than that of the connecting ejector rod 31, a jacking gap 36 is formed between the compression joint seat 32 and the cover plate fixing disc 34, a jacking spring 35 is arranged in the jacking gap 36, and the cover plate fixing disc 34 is arranged on the upper end face of the upper cover assembly 4 and applies a fixing and compacting force to the upper cover assembly 4.
In detail, the thimble structure 3 is made of copper alloy material, and silver plating and gold plating treatment are performed on the surface of the thimble structure.
The arrangement can make the thimble structure 3 have long-term stable overcurrent performance, and output stable pressure range by matching with the proper compression stroke range of the ejection spring 35, for example:
when the 300A overcurrent capacity is required, the optimal compression stroke of the required spring is 5mm, more than 8kg of force is expected, the compression stroke of the spring of 5mm-10mm can be ensured through size chain calculation, the sufficient compression force can be ensured, and the special rough treatment of the compression surface is matched, so that the contact type with the dotted line of the battery cell pole is ensured. Thereby fully ensuring the contact internal resistance and meeting the requirement that the full life cycle is less than 0.05 milliohms.
Further, the probe assembly 5 includes a probe rod 51, the probe rod 51 is disposed on the upper end surface of the upper cover assembly 4, a fixing nut 52 is disposed on the probe rod 51, a fixing seat 53 is disposed at the lower end of the fixing nut 52, the fixing seat 53 is abutted against the cover plate fixing plate 34, a fixing gap is formed between the fixing seat 53 and the fixing nut 52, and one end of the bus bar 6 is disposed in the fixing gap.
The lower end of the fixing seat 53 can compress the cover plate fixing plate 34, and the upper end can act as a positioning platform for fixing the bus bar 6.
Specifically, the probe rod 51 is integrally formed with the connecting jack 31, and the probe rod 51 is provided with an external screw thread portion 54.
As shown in fig. 2-4, the sampling assembly 7 includes a sampling plate 71 disposed between two adjacent rows of probe assemblies 5, a plurality of sampling support plates 72 are disposed on both sides of the sampling plate 71, and the sampling support plates 72 are connected with the bus bars 6.
The upper cover assembly 4 comprises a sealing cover plate 41, upper cover brackets 42 are arranged on two sides of the sealing cover plate 41, a battery cell positioning cavity is formed in the circumferential inner side of the bottom of the sealing cover plate 41, and a sealing belt 43 is arranged between the circumferential direction of the battery cell assembly 2 and the sealing cover plate.
The sealing cover plate 41 integrates the bus bar 6 and the sampling assembly 7 with the thimble structure 3 through the upper cover bracket 42, and the sealing cover plate 41 is pressed by the pressing block 81, so that the bus bar is welded on the pole instead.
The system is arranged in the installation frame 8 in a stacked manner and is pressed in a layered manner, the installation frame 8 is of a layered structure, and each layer of circumferential inner wall is provided with a pressing block 81 for pressing the upper cover support 42.
Wherein, be equipped with clamp plate 82 on upper cover subassembly 4, clamp plate 82 compresses tightly through bolt or cylinder.
In summary, the principle of this embodiment is as follows: through special thimble structure 3 and clamp plate 82 design and upper cover integration, be connected overcurrent busbar 6 and sampling subassembly 7 with thimble structure 3 in addition to can be through utilizing thimble structure 3 and electric core post crimping overcurrent capacity, thereby can replace busbar 6 to weld on electric core post, realize exempting from to weld busbar 6 battery system.
The design of the ejector pin structure 3 specific overcurrent pressure contact surface 33 is combined with the design of the ejector spring 35 on the ejector pin structure 3, and the contact pressure in a certain range is ensured under a certain spring stroke, so that enough and proper overcurrent capacity is ensured.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although terms such as lower tray 1, cell loading chamber 11, cell stack 2, ejector pin structure 3, connecting ejector pin 31, crimp seat 32, overcurrent crimp contact surface 33, cover plate fixing plate 34, ejector spring 35, ejector gap 36, upper cover assembly 4, sealing cover plate 41, upper cover bracket 42, sealing band 43, probe assembly 5, probe rod 51, fixing nut 52, fixing seat 53, male screw portion 54, bus bar 6, sampling assembly 7, sampling plate 71, sampling support plate 72, mounting frame 8, press block 81, press plate 82, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (9)
1. The utility model provides a exempt from to weld energy storage battery system, includes lower tray (1), lower tray (1) circumference inboard form electric core and load chamber (11), electric core load chamber (11) in be equipped with electric core group (2), its characterized in that, electric core group (2) up end be equipped with thimble structure (3) of mutual electricity connection, lower tray (1) up end pass through upper cover subassembly (4) and seal, and be equipped with in upper cover subassembly (4) with thimble structure (3) one-to-one probe subassembly (5) that set up, probe subassembly (5) between adjacent two connect through busbar (6), and busbar (6) link to each other with sampling subassembly (7); thimble structure (3) including connecting ejector pin (31), connection ejector pin (31) bottom be equipped with pressure seat (32), and pressure seat (32) bottom have overcurrent pressure contact surface (33), overcurrent pressure contact surface (33) and above-mentioned electric core group (2) electricity federation, connection ejector pin (31) on be equipped with apron fixed disk body (34), and be equipped with between apron fixed disk body (34) and pressure seat (32) and overlap and establish roof pressure spring (35) on connecting ejector pin (31).
2. The welding-free energy storage battery system according to claim 1, wherein the diameter of the crimping seat (32) and the diameter of the cover plate fixing disc body (34) are larger than the diameter of the connecting ejector rod (31), a jacking gap (36) is formed between the crimping seat (32) and the cover plate fixing disc body (34), the jacking spring (35) is arranged in the jacking gap (36), and the cover plate fixing disc body (34) is arranged on the upper end face of the upper cover assembly (4) and applies a fixed compression force to the upper cover assembly (4).
3. The welding-free energy storage battery system according to claim 1, wherein the thimble structure (3) is made of copper alloy material, and silver plating and gold plating are performed on the surface of the thimble structure.
4. The welding-free energy storage battery system according to claim 1, wherein the probe assembly (5) comprises a probe rod (51), the probe rod (51) is arranged on the upper end face of the upper cover assembly (4), a fixing nut (52) is arranged on the probe rod (51), a fixing seat (53) is arranged at the lower end of the fixing nut (52), the fixing seat (53) is abutted against the cover plate fixing disc body (34), a fixing gap is formed between the fixing seat (53) and the fixing nut (52), and one end of the bus bar (6) is arranged in the fixing gap.
5. The welding-free energy storage battery system of claim 4, wherein the probe rod (51) is integrally formed with the connecting ejector rod (31), and the probe rod (51) is provided with an external thread portion.
6. The welding-free energy storage battery system according to claim 1, wherein the sampling assembly (7) comprises sampling plates (71) arranged between two rows of adjacent probe assemblies (5), a plurality of sampling support plates (72) are arranged on two sides of the sampling plates (71), and the sampling support plates (72) are connected with the bus bars (6).
7. The welding-free energy storage battery system according to claim 1, wherein the upper cover assembly (4) comprises a sealing cover plate (41), upper cover brackets (42) are arranged on two sides of the sealing cover plate (41), a battery cell positioning cavity is formed in the circumferential inner side of the bottom of the sealing cover plate (41), and a sealing belt (43) is arranged between the circumferential direction of the battery cell assembly (2) and the sealing cover plate (41).
8. The welding-free energy storage battery system according to claim 7, wherein the system is arranged in a mounting frame (8) in a stacked manner and is pressed in a layered manner, the mounting frame (8) is of a layered structure, and pressing blocks (81) for pressing the upper cover brackets (42) are arranged on the inner circumferential wall of each layer.
9. The welding-free energy storage battery system according to claim 8, wherein the upper cover assembly (4) is provided with a pressing plate (82), and the pressing plate (82) is pressed by a bolt or an air cylinder.
Priority Applications (1)
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB359441A (en) * | 1930-07-21 | 1931-10-21 | John William Manley | Improvements in electric batteries |
| JPH0982306A (en) * | 1995-09-14 | 1997-03-28 | Matsushita Electric Ind Co Ltd | Lead-acid battery and manufacture thereof |
| CA2504086A1 (en) * | 2004-04-15 | 2005-10-15 | Siemens Aktiengesellschaft | Spring contact sheet and electrochemical battery with such a spring contact sheet |
| JP2011040335A (en) * | 2009-08-18 | 2011-02-24 | Yazaki Corp | Power supply device |
| JP2013206840A (en) * | 2012-03-29 | 2013-10-07 | Yazaki Corp | Connection structure for voltage detection terminal |
| US20140242438A1 (en) * | 2013-02-27 | 2014-08-28 | Denso Corporation | Lightweight and rigid structure of battery unit |
| DE102013018415A1 (en) * | 2013-11-02 | 2015-05-07 | Daimler Ag | Battery with a large number of individual battery cells |
| CN205385060U (en) * | 2016-02-26 | 2016-07-13 | 田甜 | Cylinder lithium cell is exempted from to weld and is installed in groups |
| US20180358660A1 (en) * | 2017-06-09 | 2018-12-13 | GM Global Technology Operations LLC | Electrical system with battery module and cover assembly providing built-in circuit protection |
| CN212848713U (en) * | 2020-07-29 | 2021-03-30 | 山东海帝新能源科技有限公司 | Crimping and buckling structure for battery pack bus |
| CN116418021A (en) * | 2023-04-28 | 2023-07-11 | 江苏天合储能有限公司 | Single-stage energy storage power station and battery core replacement method |
-
2023
- 2023-08-10 CN CN202311000459.7A patent/CN116742279B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB359441A (en) * | 1930-07-21 | 1931-10-21 | John William Manley | Improvements in electric batteries |
| JPH0982306A (en) * | 1995-09-14 | 1997-03-28 | Matsushita Electric Ind Co Ltd | Lead-acid battery and manufacture thereof |
| CA2504086A1 (en) * | 2004-04-15 | 2005-10-15 | Siemens Aktiengesellschaft | Spring contact sheet and electrochemical battery with such a spring contact sheet |
| JP2011040335A (en) * | 2009-08-18 | 2011-02-24 | Yazaki Corp | Power supply device |
| JP2013206840A (en) * | 2012-03-29 | 2013-10-07 | Yazaki Corp | Connection structure for voltage detection terminal |
| US20140242438A1 (en) * | 2013-02-27 | 2014-08-28 | Denso Corporation | Lightweight and rigid structure of battery unit |
| DE102013018415A1 (en) * | 2013-11-02 | 2015-05-07 | Daimler Ag | Battery with a large number of individual battery cells |
| CN205385060U (en) * | 2016-02-26 | 2016-07-13 | 田甜 | Cylinder lithium cell is exempted from to weld and is installed in groups |
| US20180358660A1 (en) * | 2017-06-09 | 2018-12-13 | GM Global Technology Operations LLC | Electrical system with battery module and cover assembly providing built-in circuit protection |
| CN212848713U (en) * | 2020-07-29 | 2021-03-30 | 山东海帝新能源科技有限公司 | Crimping and buckling structure for battery pack bus |
| CN116418021A (en) * | 2023-04-28 | 2023-07-11 | 江苏天合储能有限公司 | Single-stage energy storage power station and battery core replacement method |
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| CN116742279B (en) | 2023-10-27 |
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