CN114171858B - Pole structure of circular lithium ion battery - Google Patents
Pole structure of circular lithium ion battery Download PDFInfo
- Publication number
- CN114171858B CN114171858B CN202111505428.8A CN202111505428A CN114171858B CN 114171858 B CN114171858 B CN 114171858B CN 202111505428 A CN202111505428 A CN 202111505428A CN 114171858 B CN114171858 B CN 114171858B
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- China
- Prior art keywords
- insulating pad
- buckle
- lower insulating
- assembling
- pole body
- Prior art date
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 24
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims abstract description 55
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 238000010073 coating (rubber) Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 16
- 101100491335 Caenorhabditis elegans mat-2 gene Proteins 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
-
- 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
-
- 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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/172—Arrangements of electric connectors penetrating the casing
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
- H01M50/179—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/183—Sealing members
- H01M50/184—Sealing members characterised by their shape or 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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
- H01M50/188—Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
-
- 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
- H01M50/543—Terminals
- H01M50/564—Terminals characterised by their manufacturing process
- H01M50/567—Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
-
- 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 invention discloses a pole structure of a circular lithium ion battery, which comprises a steel shell, wherein a through hole for installing a pole body is formed in the steel shell, a lower insulating pad is arranged at the through hole of the steel shell, a lower buckle is arranged at the lower end of the lower insulating pad and is clamped at the bottom of the steel shell, an upper buckle is arranged at the upper end of the lower insulating pad and is used for fixedly clamping an aluminum ring, a sealing ring and an upper insulating pad are sleeved at the upper end of the pole body, and the pole body is clamped on a mounting hole in the center of the lower insulating pad; the upper insulating pad is provided with the upper buckle and the lower buckle to realize the clamping connection of the pole body and the steel shell, and the steel shell is internally riveted, so that the assembly precision and the excellent sealing performance can be ensured, and the pole body is suitable for a pole structure of a circular lithium ion battery.
Description
Technical Field
The invention relates to the technical field of lithium ion batteries, in particular to a pole structure of a circular lithium ion battery.
Background
The lithium ion battery has the advantages of light weight, high voltage, long charge and discharge life, low self-discharge rate, wide working temperature range and the like, and has been widely applied to the fields of digital cameras, mobile phones, electric tools and the like. With development and maturity of electric automobile technology, the lithium ion battery technology for automobiles has become a core technology of electric automobiles and has become a main attack direction of most new energy automobile enterprises.
The battery of the electric automobile has a severe service environment and has high requirements on the safety performance of the lithium ion battery. In the lithium ion battery adopted by the current electric automobile, the single battery with large capacity is not used much, and the single battery with slightly large capacity mainly adopts a method of extruding a pole, a sealing gasket and a battery cover plate to seal the pole, so that the stability of the extrusion type mounting structure is poor, and the sealing performance of the lithium ion battery is affected.
Disclosure of Invention
The invention aims to provide a pole structure of a circular lithium ion battery, wherein an upper insulating pad and a lower insulating pad are provided with upper buckles and lower buckles to realize the clamping connection of a pole body and a steel shell, the inside of the steel shell is riveted, the assembly precision and the excellent sealing performance can be ensured, and the pole structure is suitable for the pole structure of the circular lithium ion battery.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a round lithium ion battery's utmost point post structure, includes the steel shell, be provided with the through-hole that is used for installing utmost point post body on the steel shell, the through-hole department of steel shell installs insulating pad down, and insulating pad lower extreme is provided with down the buckle, and lower buckle joint is in the bottom of steel shell, and insulating pad upper end is provided with the buckle down, goes up the buckle and is used for fixed joint aluminium circle, and utmost point post body upper end cover is equipped with sealing washer and last insulating pad, and utmost point post body joint is on the mounting hole in insulating pad center down.
As a further scheme of the invention: the upper buckle is of an L-shaped or T-shaped structure.
As a further scheme of the invention: the upper buckle is fixedly connected with the aluminum ring in a rubber coating mode.
As a further scheme of the invention: the upper buckle is fixedly connected with the aluminum ring in an ultrasonic hot melting mode.
As a further scheme of the invention: the assembling sequence of the pole structure is as follows:
s1: the aluminum ring is buckled on the upper buckle of the lower insulating pad on the assembly jig;
s2: placing the steel shell on an assembly jig, buckling a lower insulating pad buckled with an aluminum ring on the steel shell, and clamping the steel shell through a lower buckle on the lower insulating pad;
s3: a sealing ring and an upper insulating pad are sequentially arranged on the pole body, and the assembled pole body is placed on an assembly jig;
s4: and mounting the assembled pole body on a lower insulating pad of the steel shell through an assembly jig, and then riveting the pole body and the lower insulating pad together to obtain a finished pole structure.
As a further scheme of the invention: in the step S1, the assembly jig simultaneously takes out the aluminum ring and the lower insulating pad, and presses the aluminum ring onto the upper buckle of the lower insulating pad.
As a further scheme of the invention: in the step S2, the lower buckle is in interference fit connection with the steel shell.
As a further scheme of the invention: in the step S3, the upper insulating pad is in clearance fit with the pole body, and the sealing ring is positioned between the lower buckle and the upper insulating pad.
As a further scheme of the invention: in the step S4, the outer ring of the pole body is in transition fit connection with the inner ring of the lower insulating pad.
As a further scheme of the invention: the assembly jig comprises a seat plate, an assembly bedplate for placing a steel shell is fixedly arranged in the middle of the seat plate, a lower assembly component for assembling the pole body is arranged below the assembly bedplate, and an upper assembly component for assembling the lower insulation pad is arranged above the assembly bedplate.
As a further scheme of the invention: the lower assembly component comprises a bottom plate fixedly arranged on the seat plate, a first air cylinder is fixedly arranged at the lower end of the bottom plate, and the output end of the first air cylinder is fixedly connected with a top plate.
As a further scheme of the invention: the upper assembly comprises an upper assembly table and a piece taking mechanism, wherein the upper assembly table is used for placing the lower insulating pad, and the piece taking mechanism is used for clamping and taking down the insulating pad and the aluminum ring.
As a further scheme of the invention: the upper assembly table comprises two groups of symmetrically arranged L-shaped seat boards, a third cylinder is fixedly arranged on the L-shaped seat boards, the output end of the third cylinder is fixedly connected with an L-shaped bedplate, and the L-shaped bedplate is slidably connected to the L-shaped seat boards.
As a further scheme of the invention: the piece taking mechanism comprises an aluminum ring assembly and an insulating pad assembly, wherein the aluminum ring assembly is used for clamping and assembling an aluminum ring, and the insulating pad assembly is used for clamping and placing an insulating pad.
The invention has the beneficial effects that:
(1) The upper insulating pad is provided with the upper and lower buckles to realize the clamping connection of the pole body and the steel shell, the inside of the steel shell is riveted, the assembly precision and the excellent sealing performance can be ensured, and the pole structure is suitable for a pole structure of a circular lithium ion battery.
(2) The special assembly jig is adopted to assemble the pole structure, so that the assembly precision is ensured, and meanwhile, the assembly efficiency is improved, and the production cost is reduced.
(3) The first motor drives the screw rod to rotate, the screw rod seat is driven to slide back and forth along the limit rod by utilizing the principle of screw rod transmission, so that the conversion plate is driven to move in the horizontal direction, the lower insulating pad and the aluminum ring are clamped on the upper assembly table, the second motor is utilized to drive the conversion plate to rotate, the conversion of the assembly positions of the lower insulating pad and the aluminum ring is realized, and the quick assembly is realized.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of a pole body of the present invention;
FIG. 2 is a schematic view of a first construction of an upper clasp of the present invention;
FIG. 3 is a schematic view of a second construction of the upper clasp of the present invention;
FIG. 4 is a schematic view of a third embodiment of an upper clasp of the present invention;
FIG. 5 is a schematic diagram of the assembly fixture of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5A in accordance with the present invention;
fig. 7 is an enlarged view of a portion of fig. 5B in accordance with the present invention.
In the figure: 1. a steel shell; 2. a lower insulating pad; 201. an upper buckle; 202. a lower buckle; 3. a pole body; 4. a seal ring; 5. an upper insulating pad; 6. an aluminum ring; 7. a seat plate; 8. a bottom plate; 9. a first cylinder; 10. a guide rod; 11. a top plate; 12. a limit bump; 13. assembling a bedplate; 14. a vertical plate; 15. a second cylinder; 16. a limit pressing plate; 17. an upper assembly table; 18. an L-shaped seat plate; 19. a third cylinder; 20. an L-shaped platen; 21. a U-shaped seat; 22. a first motor; 23. a screw rod; 24. a limit rod; 25. a screw rod seat; 26. a second motor; 27. a conversion plate; 28. a fourth cylinder; 29. a first cylinder block; 30. a first double-headed cylinder; 31. an aluminum ring clamping plate; 32. a fifth cylinder; 33. a second cylinder block; 34. a second double-head cylinder; 35. an insulating pad clamping plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, the invention discloses a pole structure of a circular lithium ion battery, which comprises a steel shell 1, wherein a through hole for installing a pole body 3 is formed in the steel shell 1, a lower insulating pad 2 is installed at the through hole of the steel shell 1, a lower buckle 202 is arranged at the lower end of the lower insulating pad 2, the lower buckle 202 is clamped at the bottom of the steel shell 1, an upper buckle 201 is arranged at the upper end of the lower insulating pad 2, the upper buckle 201 is used for fixedly clamping an aluminum ring 6, a sealing ring 4 and an upper insulating pad 5 are sleeved at the upper end of the pole body 3, and the pole body 3 is clamped on an installation hole in the center of the lower insulating pad 2. The upper buckle 201 has an L-shaped or T-shaped structure.
Referring to fig. 3, the upper buckle 201 is fixedly connected with the aluminum ring 6 by encapsulation.
Referring to fig. 4, an upper buckle 201 is fixedly connected with an aluminum ring 6 by ultrasonic hot melting.
The assembling sequence of the pole structure is as follows:
s1: the aluminum ring 6 is buckled on the upper buckle 201 of the lower insulating pad 2 on the assembly jig;
s2: placing the steel shell 1 on an assembly jig, buckling the lower insulating pad 2 buckled with the aluminum ring 6 on the steel shell 1, and clamping the steel shell 1 through a lower buckle 202 on the lower insulating pad 2;
s3: a sealing ring 4 and an upper insulating pad 5 are sequentially arranged on the pole body 3, and the assembled pole body 3 is placed on an assembly jig;
s4: the assembled pole body 3 is mounted on the lower insulating pad 2 of the steel shell 1 through an assembly jig, and then the pole body 3 and the lower insulating pad 2 are riveted together to obtain a finished pole structure.
In step S1, the assembly jig simultaneously takes out the aluminum ring 6 and the lower insulating mat 2, and presses the aluminum ring 6 onto the upper buckle 201 of the lower insulating mat 2.
In step S2, the lower buckle 202 is connected with the steel shell 1 in an interference fit manner.
In step S3, the upper insulating pad 5 is in clearance fit with the pole body 3, and the sealing ring 4 is located between the lower buckle 202 and the upper insulating pad 5.
In the step S4, the outer ring of the pole body 3 is in transition fit connection with the inner ring of the lower insulating pad 2.
Referring to fig. 5, the assembling jig comprises a seat plate 7, an assembling platen 13 for placing the steel shell 1 is fixedly arranged in the middle of the seat plate 7, a lower assembling component for assembling the pole body 3 is arranged below the assembling platen 13, an upper assembling component for assembling the lower insulating pad 2 is arranged above the assembling platen 13, a through hole for assembling the pole body 3 is formed in the center of the assembling platen 13, two groups of vertical plates 14 are symmetrically arranged on the assembling platen 13, a second cylinder 15 is horizontally and fixedly arranged on the vertical plates 14, the output end of the second cylinder 15 is fixedly connected with a limiting pressing plate 16, and the limiting pressing plate 16 is used for clamping the steel shell 1 on the assembling platen 13, so that the installation of the lower insulating pad 2 and the pole body 3 on the steel shell 1 is facilitated.
The lower assembly component comprises a bottom plate 8 fixedly arranged on a seat plate 7, a first air cylinder 9 is fixedly arranged at the lower end of the bottom plate 8, a top plate 11 is fixedly connected to the output end of the first air cylinder 9, two groups of guide rods 10 are arranged on the bottom plate 8 in a sliding penetrating mode, the upper ends of the guide rods 10 are fixedly connected to the top plate 11, limit protruding blocks 12 are fixedly arranged at the central positions of the upper ends of the top plate 11, the structures of the limit protruding blocks 12 are matched with grooves formed in the bottoms of the pole body 3, and the pole body 3 is placed on the limit protruding blocks 12 to ensure the accuracy of the positions of the pole body 3, so that the pole body 3 is conveniently assembled on the lower insulation pad 2.
The upper assembly comprises an upper assembly table 17 and a piece taking mechanism, wherein the upper assembly table 17 is used for placing the lower insulating pad 2, and the piece taking mechanism is used for clamping and taking down the insulating pad 2 and the aluminum ring 6.
The upper assembly table 17 comprises two groups of symmetrically arranged L-shaped seat plates 18, a third air cylinder 19 is fixedly arranged on the L-shaped seat plates 18, the output end of the third air cylinder 19 is fixedly connected with an L-shaped bedplate 20, and the L-shaped bedplate 20 is slidably connected on the L-shaped seat plates 18.
The piece taking mechanism comprises an aluminum ring assembly component and an insulating pad assembly component, wherein the aluminum ring assembly component is used for clamping and assembling the aluminum ring 6, and the insulating pad assembly component is used for clamping and placing the insulating pad 2. The piece taking mechanism further comprises a U-shaped seat 21, the U-shaped seat 21 is fixedly arranged on the seat plate 7, a screw rod 23 is rotatably arranged on the U-shaped seat 21, a limiting rod 24 is fixedly arranged on the U-shaped seat 21, the limiting rod 24 is arranged in parallel with the screw rod 23 and is positioned below the screw rod 23, a first motor 22 is fixedly arranged on the U-shaped seat 21, the output end of the first motor 22 is fixedly connected with the screw rod 23, a screw rod seat 25 is connected onto the screw rod 23 in a threaded manner, the screw rod seat 25 is slidably connected onto the limiting rod 24, a second motor 26 is fixedly arranged at the lower end of the screw rod seat 25, a conversion plate 27 is fixedly arranged at the output end of the second motor 26, an aluminum ring assembly component is arranged at one end of the conversion plate 27, and an insulating pad assembly component is arranged at the other end of the conversion plate 27.
The first motor 22 drives the screw rod 23 to rotate, the screw rod seat 25 is driven to slide reciprocally along the limit rod 24 by utilizing the principle of screw rod transmission, so that the conversion plate 27 is driven to move in the horizontal direction, the lower insulating pad 2 and the aluminum ring 6 are clamped on the upper assembly table 17, the second motor 26 is utilized to drive the conversion plate 27 to rotate, the assembly position of the lower insulating pad 2 and the aluminum ring 6 is converted, and the quick assembly is realized.
Referring to fig. 6, the aluminum ring assembly includes a fourth cylinder 28, the fourth cylinder 28 is fixedly mounted on the conversion plate 27, the output end of the fourth cylinder 28 is fixedly connected with a first cylinder seat 29, the lower end of the first cylinder seat 29 is fixedly provided with a first double-head cylinder 30, two output ends of the first double-head cylinder 30 are fixedly mounted with aluminum ring clamping plates 31, the aluminum ring clamping plates 31 are in a Z-shaped structure, so that the aluminum ring 6 can be conveniently clamped, and meanwhile, limiting and pressing can be performed when the aluminum ring 6 is mounted.
Referring to fig. 7, the insulating mat assembly includes a fifth cylinder 32, the fifth cylinder 32 is fixedly mounted on the conversion plate 27, an output end of the fifth cylinder 32 is fixedly connected with a second cylinder seat 33, a second double-head cylinder 34 is fixedly mounted at a lower end of the second cylinder seat 33, two output ends of the second double-head cylinder 34 are fixedly mounted with insulating mat clamping plates 35, and the insulating mat clamping plates 35 are used for clamping the lower insulating mat 2.
The working principle of the invention is as follows: the first motor 22 drives the screw rod 23 to rotate, the screw rod seat 25 is driven to slide back and forth along the limiting rod 24 by utilizing the principle of screw rod transmission, so that the conversion plate 27 is driven to move in the horizontal direction, the conversion plate 27 moves to the position where the lower insulating pad 2 and the aluminum ring 6 are stored, the fourth cylinder 28 drives the first cylinder seat 29 to move downwards, the first double-headed cylinder 30 drives the two groups of aluminum ring clamping plates 31 to move, the two groups of aluminum ring clamping plates 31 are propped against the inner side wall of the aluminum ring 6, and the fourth cylinder 28 drives the aluminum ring 6 to reset upwards after the aluminum ring 6 is clamped; the fifth cylinder 32 drives the second cylinder seat 33 to move downwards, the second double-headed cylinder 34 drives the two groups of insulating pad clamping plates 35 to clamp the lower insulating pad 2, then the fifth cylinder 32 drives the lower insulating pad 2 to reset upwards, the first motor 22 drives the conversion plate 27 to move above the upper assembling table 17, the two groups of L-shaped table plates 20 are closed by the two groups of third cylinders 19, then the fifth cylinder 32 drives the lower insulating pad 2 to move downwards, the lower insulating pad 2 is placed on the closed L-shaped table plates 20, the second motor 26 drives the conversion plate 27 to rotate, the first motor 22 adjusts the position of the conversion plate 27, the aluminum ring 6 clamped on the first double-headed cylinder 30 is positioned right above the lower insulating pad 2, then the fourth cylinder 28 drives the aluminum ring 6 to move downwards, the aluminum ring 6 is mounted on the lower insulating pad 2, and the aluminum ring 6 is clamped by the upper clamping buckles 201 arranged on the lower insulating pad 2; after the aluminum ring 6 is installed, the first double-head air cylinder 30 drives the aluminum ring clamping plate 31 to clamp the aluminum ring 6 and the lower insulating pad 2, the third air cylinder 19 drives the L-shaped bedplate 20 to move outwards to place the steel shell 1 on the assembly bedplate 13, the second air cylinder 15 drives the limiting pressing plate 16 to move towards the steel shell 1, the steel shell 1 is clamped by the limiting pressing plate 16, then the fourth air cylinder 28 drives the aluminum ring 6 and the lower insulating pad 2 to move downwards to clamp the lower insulating pad 2 on the steel shell 1, and the steel shell 1 is clamped by the lower clamping buckle 202 arranged on the lower insulating pad 2; the pole body 3 is placed on the top plate 11, a limiting lug 12 is fixedly arranged at the central position of the upper end of the top plate 11, the structure of the limiting lug 12 is matched with a groove arranged at the bottom of the pole body 3, the pole body 3 is placed on the limiting lug 12, the accuracy of the position of the pole body can be ensured, then an upper sealing ring 4 and an upper insulating pad 5 are sequentially installed on the pole body 3, after the installation on the pole body 3 is completed, the first air cylinder 9 drives the top plate 11 to move upwards, drives the pole body 3 to move upwards and insert into the lower insulating pad 2, and finally the pole body 3 and the lower insulating pad 2 are riveted together to obtain a finished pole structure.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (8)
1. The utility model provides a round lithium ion battery's utmost point post structure, its characterized in that, including steel casing (1), be provided with the through-hole that is used for installing utmost point post body (3) on steel casing (1), lower insulating pad (2) are installed to the through-hole department of steel casing (1), lower insulating pad (2) lower extreme is provided with down buckle (202), lower buckle (202) joint is in the bottom of steel casing (1), lower insulating pad (2) upper end is provided with up buckle (201), up buckle (201) are used for fixed joint aluminium circle (6), sealing washer (4) and last insulating pad (5) are equipped with to utmost point post body (3) upper end cover, utmost point post body (3) joint is on the mounting hole in insulating pad (2) center down;
the assembling sequence of the pole structure is as follows:
s1: the aluminum ring (6) is buckled on an upper buckle (201) of the lower insulating pad (2) on the assembly jig;
s2: placing the steel shell (1) on an assembly jig, buckling the lower insulating pad (2) buckled with the aluminum ring (6) on the steel shell (1), and clamping the steel shell (1) through a lower buckle (202) on the lower insulating pad (2);
s3: a sealing ring (4) and an upper insulating pad (5) are sequentially arranged on the pole body (3), and the assembled pole body (3) is placed on an assembly jig;
s4: mounting the assembled pole body (3) on the lower insulating pad (2) of the steel shell (1) through an assembly jig, and then riveting the pole body (3) and the lower insulating pad (2) together to obtain a finished pole structure;
the assembling jig comprises a seat plate (7), an assembling bedplate (13) for placing a steel shell (1) is fixedly arranged in the middle of the seat plate (7), a lower assembling component for assembling a pole body (3) is arranged below the assembling bedplate (13), an upper assembling component for assembling a lower insulating pad (2) is arranged above the assembling bedplate (13), a through hole for assembling the pole body (3) is formed in the center of the assembling bedplate (13), two groups of vertical plates (14) are symmetrically arranged on the assembling bedplate (13), a second air cylinder (15) is horizontally and fixedly arranged on the vertical plates (14), a limiting pressing plate (16) is fixedly connected to the output end of the second air cylinder (15), and the limiting pressing plate (16) is used for clamping the steel shell (1) on the assembling bedplate (13) so as to conveniently mount the lower insulating pad (2) and the pole body (3) on the steel shell (1).
The lower assembly component comprises a bottom plate (8) fixedly arranged on a seat plate (7), a first air cylinder (9) is fixedly arranged at the lower end of the bottom plate (8), a top plate (11) is fixedly connected to the output end of the first air cylinder (9), two groups of guide rods (10) are arranged on the bottom plate (8) in a sliding penetrating mode, the upper ends of the guide rods (10) are fixedly connected to the top plate (11), a limit lug (12) is fixedly arranged at the central position of the upper end of the top plate (11), the structure of the limit lug (12) is matched with a groove arranged at the bottom of the pole body (3), and the position accuracy of the pole body (3) can be ensured by placing the limit lug (12), so that the pole body (3) can be conveniently assembled on the lower insulation pad (2);
the upper assembly component comprises an upper assembly table (17) and a piece taking mechanism, the upper assembly table (17) is used for placing the lower insulating pad (2), and the piece taking mechanism is used for clamping and taking down the insulating pad (2) and the aluminum ring (6);
the upper assembly table (17) comprises two groups of symmetrically arranged L-shaped seat boards (18), a third air cylinder (19) is fixedly arranged on the L-shaped seat boards (18), an L-shaped bedplate (20) is fixedly connected to the output end of the third air cylinder (19), and the L-shaped bedplate (20) is slidably connected to the L-shaped seat boards (18).
2. The pole structure of a circular lithium ion battery according to claim 1, wherein the upper clip (201) has an L-shaped or T-shaped structure.
3. The pole structure of a circular lithium ion battery according to claim 1, wherein the upper buckle (201) is fixedly connected with the aluminum ring (6) in a rubber coating manner.
4. The pole structure of a circular lithium ion battery according to claim 1, wherein the upper buckle (201) is fixedly connected with the aluminum ring (6) by adopting an ultrasonic hot melting mode.
5. The pole structure of a circular lithium ion battery according to claim 1, wherein in step S1, the assembly jig simultaneously takes out the aluminum ring (6) and the lower insulating pad (2) and presses the aluminum ring (6) onto the upper buckle (201) of the lower insulating pad (2).
6. The pole structure of a circular lithium ion battery according to claim 1, wherein in step S2, the lower buckle (202) is in interference fit connection with the steel casing (1).
7. The pole structure of a circular lithium ion battery according to claim 1, wherein in step S3, a clearance fit is provided between the upper insulating pad (5) and the pole body (3), and the sealing ring (4) is located between the lower buckle (202) and the upper insulating pad (5).
8. The pole structure of a circular lithium ion battery according to claim 1, wherein in step S4, the outer ring of the pole body (3) is in transition fit connection with the inner ring of the lower insulating pad (2).
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