CN117239366A - New energy lithium battery electrolyte injection device and use method thereof - Google Patents
New energy lithium battery electrolyte injection device and use method thereof Download PDFInfo
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- CN117239366A CN117239366A CN202311085216.8A CN202311085216A CN117239366A CN 117239366 A CN117239366 A CN 117239366A CN 202311085216 A CN202311085216 A CN 202311085216A CN 117239366 A CN117239366 A CN 117239366A
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- injection
- rod
- electrolyte
- liquid
- fixedly installed
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- 238000002347 injection Methods 0.000 title claims abstract description 213
- 239000007924 injection Substances 0.000 title claims abstract description 213
- 239000003792 electrolyte Substances 0.000 title claims abstract description 105
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 33
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 102
- 238000001125 extrusion Methods 0.000 claims description 77
- 238000007789 sealing Methods 0.000 claims description 19
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Filling, Topping-Up Batteries (AREA)
Abstract
The invention relates to the technical field of new energy lithium batteries, in particular to a new energy lithium battery electrolyte injection device and a use method thereof. According to the invention, the movable liquid injection box is arranged, so that the injection pipe at the bottom of the liquid injection box is abutted with the injection pipe of the battery body, and then the connecting cylinder, the connecting rod and the piston plate are driven to move downwards by starting, so that the electrode liquid in the liquid injection box is injected into the battery shell in a certain pressure mode, the damage of the battery shell caused by pressure difference due to a pressure method can be avoided, and the problems that the electrolyte cannot fully fill the internal space or the filling speed is slow due to the automatic flowing of the electrolyte into the battery body can also be avoided.
Description
Technical Field
The invention belongs to the technical field of new energy lithium batteries, and particularly relates to a new energy lithium battery electrolyte injection device and a use method thereof.
Background
Lithium batteries are a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a negative electrode material. Lithium metal batteries were first proposed and studied by gilbert n.lewis in 1912. At 70 s of the 20 th century, m.s. whittingham proposed and began to study lithium ion batteries. The chemical characteristics of lithium metal are very active, so that the processing, storage and use of lithium metal have very high requirements on environment.
The patent publication No. CN113823881B discloses an electrolyte uniform filling device for battery processing, wherein it is explicitly proposed that the prior art uses a vacuum mode to perform single-point filling, and uses a pressure difference to fill the electrolyte into the battery, the mode needs to vacuumize the inside of the battery case in use, but in the specific use process, the electrolyte is usually a strong acid electrolyte or a strong alkaline electrolyte, and has a certain corrosiveness, so that the electrolyte is easy to drip out of the drain channel of the injection nozzle, and the equipment is corroded.
Disclosure of Invention
The invention aims to provide a new energy lithium battery electrolyte injection device and a use method thereof, which solve the problems that in the prior art, electrolyte cannot enter the storage battery shell rapidly and sufficiently, gaps are easy to exist in the injection process, and the quality of a battery is affected.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a new energy lithium battery electrolyte injection device and a use method thereof comprise a base;
the liquid injection box is arranged at the top of the base;
the battery body is arranged between the base and the liquid injection box;
the lifting assembly is arranged on the surface of the base, and the liquid injection box is arranged on the surface of the lifting assembly;
the injection assembly is arranged on the surface of the liquid injection box;
the injection assembly comprises a piston plate, the piston plate is slidably connected in the liquid injection box, a connecting cylinder penetrates through the surface of the piston plate in a rotating mode, an extrusion rod is arranged at the bottom of the connecting cylinder, an air cylinder is arranged at the top of the liquid injection box, a connecting shell is fixedly arranged at an output end port of the air cylinder, a connecting rod is arranged at the bottom of the connecting shell, the connecting rod is movably inserted in the liquid injection box, the bottom of the connecting rod is fixedly connected with the connecting cylinder, and an injection tube with a valve is communicated with the bottom of the liquid injection box.
Preferably, the lifting assembly comprises a vertical rod, the vertical rod is fixedly arranged on the side wall of the liquid injection box, a hydraulic cylinder is fixedly arranged on the surface of the base, an output end port of the hydraulic cylinder is fixedly connected with the vertical rod, a vertical rod is fixedly arranged on the surface of the base, the surface of the vertical rod penetrates through the vertical rod in a sliding mode, the liquid injection box is fixedly arranged on the surface of the vertical rod, a positioning groove is formed in the surface of the base, a positioning plate is arranged in the positioning groove, an injection pipe is fixedly arranged at the top of the battery body, a limiting groove matched with the size of the battery body is formed in the surface of the positioning plate, the battery body is placed in the limiting groove to achieve the state that the injection pipe and the injection pipe are located in the same vertical line, and a liquid inlet pipe is communicated with the side wall of the liquid injection box.
Preferably, the inside fixed mounting of connecting cylinder has electric telescopic handle, electric telescopic handle's output port and extrusion pole fixed connection, the bottom of extrusion pole through-connection cylinder, the top of extrusion pole is close to the equal fixed mounting in position of both sides has the horizontal pole, two spouts have been seted up to the inner wall of connecting cylinder, horizontal pole and spout sliding connection, the diameter size of extrusion pole and the internal diameter size looks adaptation of syringe.
Preferably, the bottom of injection tube is close to the position of inner wall and sets up to the toper chamfer, the inside fixed mounting of pipe wall of injection tube has the fluid-discharge tube that has the valve, the bottom and the toper chamfer parallel and level of fluid-discharge tube, the top of injection tube is provided with the feed liquor mouth that internal diameter size is greater than injection tube internal diameter size.
Preferably, the top fixed mounting of annotating the liquid case has the mount, cylinder fixed mounting is at the surface of mount, the inside fixed mounting of coupling shell has the motor, the top of connecting rod rotates to be inserted and establishes inside the coupling shell, and with motor output shaft port fixed connection, the mount is "n" shape structure, perpendicular groove has all been seted up to one side that the both arms of mount are close to each other, the coupling shell is through perpendicular groove and mount sliding connection, the bottom of extrusion pole is provided with the end cover that has the external screw thread with injection tube size looks adaptation, the internal thread with the end cover looks adaptation has been seted up to the inner wall of injection tube.
Preferably, the top fixed mounting of end cover has the connecting block, the top fixed mounting of connecting block has the magnet piece, the draw-in groove with connecting block size looks adaptation has been seted up to the bottom of extruding rod, the roof fixed mounting of draw-in groove has the electro-magnet, the bottom fixed mounting of extruding rod has sealed pad.
Preferably, two limiting rods are fixedly arranged in the liquid injection box, the two limiting rods penetrate through the two piston plates in a sliding mode, and rubber rings are fixedly arranged on the periphery of the piston plates.
Preferably, the bottom of annotating the liquid case is provided with the limiting plate, the top fixed mounting of limiting plate has two springs, two the top of spring all with annotate liquid case fixed connection, the inside of spring is provided with flexible cover, the both ends of flexible cover respectively with limiting plate and annotate liquid case fixed connection.
The application method of the new energy lithium battery electrolyte injection device comprises the following steps,
s1, electrolyte is added into the liquid injection box to enable the extrusion rod to extend out of the injection tube, and a sealing cover is arranged at the bottom end of the extrusion rod;
s2, placing the battery body in a positioning groove on a positioning plate, and driving the liquid injection box to move downwards by using a lifting mechanism until the injection tube is abutted with the liquid inlet;
s3, driving the piston plate to move downwards by utilizing a cylinder in the injection assembly, and extruding electrolyte into the battery body;
s4, starting an electric telescopic rod to drive the extrusion rod to move downwards to extrude the electrolyte remained in the injection tube, so that the residual electrolyte is discharged by utilizing the liquid discharge tube until a sealing cover at the bottom of the extrusion rod reaches the position of the liquid inlet;
s5, starting a motor to drive the whole connecting cylinder to rotate, so that the connecting cylinder drives the extrusion rod and the sealing cover to rotate until the sealing cover is in threaded connection with the injection pipe, and realizing automatic packaging of the battery body;
and S6, the electromagnet is powered off, the electric telescopic rod drives the extrusion rod to move upwards to separate from the sealing cover, and the lifting assembly is used for driving the liquid injection box to move upwards, so that the electrolyte injection of the battery body is completed.
The invention has at least the following beneficial effects:
through setting up mobilizable notes liquid case, make the injection tube of notes liquid case bottom and battery body's injection tube butt, then utilize to start drive connecting cylinder, connecting rod and piston board to move down to inject the inside of battery casing with the inside of the inside electrode liquid of notes liquid case with the mode of certain pressure, thereby can avoid adopting the pressure method to lead to the battery casing to receive the damage that the pressure difference leads to, also can avoid the electrolyte to flow into inside the battery body automatically and lead to the unable inner space of filling with of electrolyte or the slow problem of filling up speed.
Through set up the squeeze lever on the basis of piston board, utilize electric telescopic handle to can make the inside remaining electrolyte of injection syringe by the extrusion go out, avoid remaining electrolyte in the injection syringe, lead to the electrolyte to drop the condition of corrosion equipment, the squeeze lever can also play the effect that utilizes the closing cap to carry out the shutoff to battery body's inlet moreover, avoid battery body not carrying out the shutoff after the injection is accomplished and lead to electrolyte unrestrained or the condition that the dust got into.
Through limiting plate and the spring that set up, utilize the elastic deformation of spring, make the battery body receive the extrusion of limiting plate to conveniently improve the stability of battery body injection process, can make the battery body receive decurrent pressure in the time of extruding rod and closing cap break away from and syringe and inlet separation moreover, avoid also being pulled up the condition because the block is too tight in the separation process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a positioning plate structure according to the present invention;
FIG. 3 is a cross-sectional view of the liquid injection tank of the present invention;
FIG. 4 is a schematic view of the internal structure of the liquid injection tank of the present invention;
FIG. 5 is a schematic view of the structure of FIG. 4A according to the present invention;
FIG. 6 is a schematic view of the structure of the extrusion rod of the present invention;
fig. 7 is a schematic diagram of the structure of the end cap of the present invention.
In the figure: 1. a base; 2. a positioning plate; 3. a vertical rod; 4. a liquid injection box; 5. a battery body; 6. a fixing frame; 7. a cylinder; 8. a connection housing; 9. a motor; 10. a connecting rod; 11. a liquid inlet pipe; 12. a connecting cylinder; 13. a restraining bar; 14. a vertical groove; 15. a piston plate; 16. a rubber ring; 17. an extrusion rod; 18. an end cap; 181. a magnet block; 182. a connecting block; 19. a spring; 20. a limiting plate; 21. a syringe; 22. a liquid discharge pipe; 23. conical chamfering; 24. a liquid inlet; 25. an injection tube; 26. an electric telescopic rod; 27. a chute; 28. a cross bar; 29. an electromagnet; 30. a clamping groove; 31. a sealing gasket; 32. a hydraulic cylinder; 33. and a vertical rod.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
The electrical components are all connected with an external main controller and 220V mains supply, and the main controller can be conventional known equipment for controlling a computer and the like.
In describing embodiments of the present invention, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience of description and simplification of description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Examples
Referring to fig. 1-7, a new energy lithium battery electrolyte injection device and a use method thereof comprise a base 1;
the liquid injection box 4 is arranged at the top of the base 1;
the battery body 5 is arranged between the base 1 and the liquid injection box 4;
the lifting assembly is arranged on the surface of the base 1, and the liquid injection box 4 is arranged on the surface of the lifting assembly;
the injection assembly is arranged on the surface of the liquid injection box 4;
the injection component comprises a piston plate 15, the piston plate 15 is slidably connected in the liquid injection box 4, a connecting cylinder 12 is rotatably penetrated on the surface of the piston plate 15, an extrusion rod 17 is arranged at the bottom of the connecting cylinder 12, a cylinder 7 is arranged at the top of the liquid injection box 4, a connecting shell 8 is fixedly arranged at the output end port of the cylinder 7, a connecting rod 10 is arranged at the bottom of the connecting shell 8, the connecting rod 10 is movably inserted in the liquid injection box 4, the bottom end of the connecting rod 10 is fixedly connected with the connecting cylinder 12, the bottom end of the liquid injection box 4 is communicated with an injection tube 21 with a valve, in use, a battery body 5 is firstly placed on a base 1, electrolyte is added into the liquid injection box 4, the added amount is more than the electrolyte required by the battery body 5, so that the battery body can be filled with electrolyte, the liquid injection box 4 is driven to move downwards by the lifting component, and the battery body 5 can be aligned, the electrolyte is injected into the battery body 5 by using the electrolyte injection box 4 and the injection assembly, the cylinder 7 is started, the cylinder 7 drives the connecting shell 8 to move downwards, the connecting shell 8 drives the connecting rod 10 to move downwards, the connecting rod 10 drives the connecting cylinder 12 to move downwards, the connecting cylinder 12 drives the piston plate 15 to move downwards, the electrolyte in the electrolyte injection box 4 is extruded by the piston plate 15, so that the electrolyte is extruded from the injection tube 21 and then enters the battery shell, the electrolyte can be filled into the battery shell rapidly due to the extrusion of the piston plate 15 all the time, the situation that gaps appear in the battery shell due to the pole pieces and the partition plates can be avoided by utilizing the extrusion, the electrolyte is filled in each corner, in order to reduce the situation that the electrolyte drops out after the injection, the extrusion rod 17 can be inserted into the syringe 21 after the injection is completed, so that the electrolyte remaining in the syringe 21 can be discharged, and the electrolyte dripping can be reduced.
Further, lifting unit includes pole setting 3, pole setting 3 fixed mounting is in the lateral wall of annotating liquid case 4, the fixed surface of base 1 installs pneumatic cylinder 32, the output port and the pole setting 3 fixed connection of pneumatic cylinder 32, the fixed surface of base 1 installs montant 33, the surface slip of montant 33 runs through pole setting 3, annotate liquid case 4 fixed mounting is at the surface of pole setting 3, the constant head tank has been seted up on the surface of base 1, and the inside of constant head tank is provided with locating plate 2, the top fixed mounting of battery body 5 has injection pipe 25, the restriction groove with battery body 5 size looks adaptation has been seted up on the surface of locating plate 2, battery body 5 places in the inside of restriction groove in order to reach injection pipe 25 and injection pipe 21 and is located same vertical line's state, the lateral wall intercommunication of annotating liquid case 4 has feed pipe 11, lifting unit in use, the pneumatic cylinder 32 is started, hydraulic cylinder 32 can drive annotate liquid case 4 and pole setting 3 and carry out the removal of vertical direction on 33, thereby drive annotate liquid case 4 and move down after the battery case is by being put, can drive annotate liquid case 4 after the battery case injection is accomplished, through setting up the restriction groove that can drive, can carry out the restriction groove with battery body 5 size looks adaptation, can be convenient for change through setting up the inside restriction groove 2 through setting up the restriction groove with battery body 5, the restriction groove 2, the inside has the restriction groove is convenient for be used in the position of the restriction groove 2.
Examples
Further, an electric telescopic rod 26 is fixedly installed inside the connecting cylinder 12, an output end port of the electric telescopic rod 26 is fixedly connected with the extrusion rod 17, the extrusion rod 17 penetrates through the bottom end of the connecting cylinder 12, two sliding grooves 27 are formed in the inner wall of the connecting cylinder 12 and are in sliding connection with the sliding grooves 27, the diameter of the extrusion rod 17 is matched with the inner diameter of the injection tube 21, before the piston plate 15 is started, the electric telescopic rod 26 is firstly utilized to enable the extrusion rod 17 to shrink, when the piston plate 15 moves downwards to the lowest position, electrolyte inside the battery body 5 is filled, at the moment, the electric telescopic rod 26 is started again, the extrusion rod 17 is driven to move downwards by the electric telescopic rod 26, residual electrolyte inside the injection tube 21 is discharged by the extrusion rod 17, the extrusion rod 17 is filled inside the injection tube 21, and the electrolyte inside the injection tank 4 cannot automatically flow downwards.
Further, the bottom of injection tube 21 is close to the position of inner wall and sets up to toper chamfer 23, the inside fixed mounting of pipe wall of injection tube 21 has the fluid-discharge tube 22 that has the valve, the bottom and the toper chamfer 23 parallel and level of fluid-discharge tube 22, the top of injection tube 25 is provided with the feed liquor mouth 24 that internal diameter size is greater than the internal diameter size of injection tube 25, in order to cooperate extrusion rod 17 to discharge the electrolyte in the injection tube 21, set up the injection tube 21 bottom into toper chamfer 23, when the lifting assembly drive annotates liquid case 4 and move down, can make injection tube 21 insert the position of feed liquor mouth 24, and to feed liquor mouth 24 butt, the bottom outer wall of injection tube 21 and feed liquor mouth 24 in close contact, owing to the setting of toper chamfer 23, make the bottom of fluid-discharge tube 22 can be in unsettled state, thereby when extrusion rod 17 moves down, open the valve of fluid-discharge tube 22, can discharge the electrolyte that remains, this valve needs to close in the electrolyte injection process, the electrolyte is under the effect, the pressure is followed the battery body and can not fully filled with electrolyte 5 directly under the effect, can not be fully discharged by the battery 5.
Examples
Further, the top of the liquid injection box 4 is fixedly provided with a fixing frame 6, the air cylinder 7 is fixedly arranged on the surface of the fixing frame 6, the motor 9 is fixedly arranged in the connecting shell 8, the top of the connecting rod 10 is rotatably inserted in the connecting shell 8 and fixedly connected with the output shaft port of the motor 9, the fixing frame 6 is of an n-shaped structure, two arms of the fixing frame 6 are close to each other, one side of each arm is provided with a vertical groove 14, the connecting shell 8 is in sliding connection with the fixing frame 6 through the vertical grooves 14, the bottom end of the extruding rod 17 is provided with an end cover 18 with external threads, which is matched with the size of the injecting pipe 25, the inner wall of the injecting pipe 25 is provided with internal threads, which are matched with the end cover 18, the lithium battery after liquid injection is required to be transported, because the lithium battery is not sealed, during transportation, liquid is easy to be scattered due to shaking, and external dust is easy to enter the inside the lithium battery, the lithium battery liquid is polluted, the processing quality is affected, at this moment, before injection, the electric telescopic rod 26 is used for driving the extrusion rod 17 to extend out of the injection tube 21, then the end cover 18 is clamped at the bottom end of the extrusion rod 17, finally, the electric telescopic rod 26 is used for driving the extrusion rod 17 to move upwards until the extrusion rod 17 is completely separated from the injection tube 21, the phenomenon that the injection tube 21 is blocked by the extrusion rod 17 is avoided, after injection is completed, the extrusion rod 17 drives the end cover 18 to move downwards, when the end cover 18 is contacted with the injection tube 25, the motor 9 is started, the motor 9 drives the connecting rod 10 to rotate, the connecting rod 10 drives the connecting cylinder 12 to rotate, the connecting cylinder 12 drives the internal electric telescopic rod 26 and the extrusion rod 17 to synchronously rotate, thereby driving the end cover 18 to rotate, the end cover 18 can be connected inside the injection tube 25 in a threaded manner, and thus the blocking can be directly realized after the injection is completed, the operation is convenient.
Further, the connecting block 182 is fixedly installed at the top of the end cover 18, the magnet block 181 is fixedly installed at the top of the connecting block 182, the clamping groove 30 which is matched with the connecting block 182 in size is formed in the bottom end of the extrusion rod 17, the electromagnet 29 is fixedly installed at the top wall of the clamping groove 30, the sealing gasket 31 is fixedly installed at the bottom of the extrusion rod 17, the cleaning effect of the extrusion rod 17 on residual electrolyte of the injection tube 21 can be enhanced through the sealing gasket 31, when the end cover 18 is required to be clamped with the clamping groove 30, the electromagnet 29 is electrified, so that the electromagnet 29 has a certain suction force, then the connecting block 182 at the top of the end cover 18 is clamped into the clamping groove 30, the arrangement of the connecting block 182 can enable the end cover 18 and the extrusion rod 17 not to rotate relatively, so that the end cover 18 is more convenient to be connected with the injection tube 25 in a threaded manner, the magnet block 181 arranged at the top of the connecting block 182 can be adsorbed by the electromagnet 29, and the end cover 18 cannot be easily separated from the clamping groove 30, and after the threaded connection between the end cover 18 and the injection tube 25, the electromagnet 29 is powered off, the end cover 18 can be easily separated from the clamping groove 30 and the injection tube 25.
Further, two limiting rods 13 are fixedly installed in the liquid injection tank 4, the two limiting rods 13 penetrate through the two piston plates 15 in a sliding mode, rubber rings 16 are fixedly installed on the periphery of the piston plates 15, the piston plates 15 can be limited from rotating through the limiting rods 13, and the situation that electrolyte overflows upwards from the edges of the piston plates 15 when the electrolyte is extruded through the rubber rings 16 can be avoided.
Examples
Further, the bottom of the liquid injection box 4 is provided with the limiting plate 20, two springs 19 are fixedly installed at the top of the limiting plate 20, the tops of the two springs 19 are fixedly connected with the liquid injection box 4, a telescopic sleeve is arranged in the springs 19, two ends of the telescopic sleeve are fixedly connected with the limiting plate 20 and the liquid injection box 4 respectively, after the end cover 18 is connected with the injection pipe 25 by means of the clamping grooves 30 and the connecting blocks 182, the end cover 18 is conveniently separated from the clamping grooves 30, the limiting plate 20 is sleeved on the surface of the injection pipe 25 by means of long holes, when the liquid injection box 4 moves downwards, the limiting plate 20 is contacted with the battery body 5 under the action of the springs 19, and the springs 19 are compressed, so that the battery body 5 is subjected to downward pressure of the limiting plate 20, and when the extruding rod 17 moves upwards, the battery is compressed by the limiting plate 20, and cannot move upwards along with the end cover 18 and the extruding rod 17, so that separation between the end cover 18 and the clamping grooves 30 is facilitated, and separation between the injection pipe 21 and the liquid inlet 24 is also facilitated.
The application method of the new energy lithium battery electrolyte injection device comprises the following steps,
s1, electrolyte is added into the liquid injection box 4 to enable the extrusion rod 17 to extend out of the injection tube 21, and a sealing cover is arranged at the bottom end of the extrusion rod 17;
s2, placing the battery body 5 in a positioning groove on the positioning plate 2, and driving the liquid injection box 4 to move downwards by using a lifting mechanism until the injection tube 21 is abutted with the liquid inlet 24;
s3, driving the piston plate 15 to move downwards by utilizing the air cylinder 7 in the injection assembly, and extruding electrolyte into the battery body 5;
s4, starting an electric telescopic rod 26 to drive the extrusion rod 17 to move downwards to extrude the electrolyte remained in the injection tube 21, so that the residual electrolyte is discharged by the liquid discharge tube 22 until a sealing cover at the bottom of the extrusion rod 17 reaches the position of the liquid inlet 24;
s5, starting the motor 9 to drive the whole connecting cylinder 12 to rotate, so that the connecting cylinder 12 drives the extrusion rod 17 and the sealing cover to rotate until the sealing cover is in threaded connection with the injection pipe 25, and realizing automatic packaging of the battery body 5;
s6, the electromagnet 29 is powered off, the electric telescopic rod 26 drives the extrusion rod 17 to move upwards to be separated from the sealing cover, and the lifting assembly is used for driving the liquid injection box 4 to move upwards, so that the electrolyte injection of the battery body 5 is completed.
In summary, in use, firstly, the battery body 5 is placed on the base 1, the electrolyte is added into the electrolyte injection box 4, and the added amount is more than the electrolyte amount required by the battery body 5, so that the battery shell can be fully filled with the electrolyte, the electrolyte injection box 4 is driven to move downwards by the lifting assembly, the battery body 5 can be aligned, and the electrolyte is injected into the battery body 5 by the electrolyte injection box 4 and the injection assembly.
In use, the injection assembly starts the air cylinder 7, the air cylinder 7 drives the connecting shell 8 to move downwards, the connecting shell 8 drives the connecting rod 10 to move downwards, the connecting rod 10 drives the connecting cylinder 12 to move downwards, the connecting cylinder 12 drives the piston plate 15 to move downwards, the electrolyte in the injection tank 4 is extruded by the piston plate 15, so that the electrolyte is extruded from the injection tube 21 and then enters the battery shell, the electrolyte is always extruded by the piston plate 15, so that the electrolyte can be quickly filled in the battery shell, gaps in the battery shell due to the conditions of pole pieces and the partition plates can be avoided by extrusion, the electrolyte is filled in each corner, and in order to reduce the condition of discharging electrolyte drops after injection, the extrusion rod 17 arranged can be inserted into the injection tube 21 after the injection is finished, so that the electrolyte remained in the injection tube 21 is discharged, and the condition of dropping the electrolyte can be reduced.
In use, the lifting assembly is started to enable the hydraulic cylinder 32 to drive the liquid injection box 4 and the vertical rod 3 to move in the vertical direction on the vertical rod 33, so that the liquid injection box 4 is driven to move downwards after the battery shell is placed, the liquid injection box 4 can be driven to move upwards after the injection of the battery shell is completed, the position of the battery body 5 can be limited through the set positioning plate 2, the positioning plate 2 is placed in the positioning groove, the positioning plate 2 with different limiting grooves is convenient to replace, the battery body 5 with different types is convenient to use, and electrolyte is conveniently added into the liquid injection box 4 through the arrangement of the liquid inlet pipe 11. Before the piston plate 15 is started, the electric telescopic rod 26 is utilized to retract the extrusion rod 17, when the piston plate 15 moves downwards to the lowest position, electrolyte in the battery body 5 is filled, at the moment, the electric telescopic rod 26 is restarted, the electric telescopic rod 26 drives the extrusion rod 17 to move downwards, residual electrolyte in the injection tube 21 is discharged through the extrusion rod 17, the extrusion rod 17 is fully filled in the injection tube 21, the electrolyte in the injection tube 21 cannot automatically flow downwards, in order to match the extrusion rod 17 to discharge the electrolyte in the injection tube 21, the bottom of the injection tube 21 is provided with a conical chamfer 23, when the lifting assembly drives the injection tube 4 to move downwards, the injection tube 21 can be inserted to the position of the liquid inlet 24, and the bottom end outer wall of the injection tube 21 is in tight contact with the liquid inlet 24 due to the arrangement of the conical chamfer 23, the bottom end of the liquid discharge pipe 22 can be in a suspended state, so that electrolyte in the injection pipe 21 can enter the liquid discharge pipe 22 under the action of pressure when the extrusion rod 17 moves downwards, a valve of the liquid discharge pipe 22 is opened, residual electrolyte can be discharged, the valve needs to be closed in the electrolyte injection process, the situation that the electrolyte directly comes out of the liquid discharge pipe 22 under the action of pressure, the battery body 5 cannot be filled with the electrolyte is avoided, the lithium battery after the injection is completed needs to be transported, because the lithium battery is not sealed, liquid is easy to spill due to shaking during transportation, external dust easily enters the lithium battery, the lithium battery liquid is polluted, the processing quality is influenced, at the moment, the extrusion rod 17 is driven to extend out of the injection pipe 21 by the electric telescopic rod 26 before injection, the end cover 18 is clamped at the bottom end of the extrusion rod 17, finally, the electric telescopic rod 26 is utilized to drive the extrusion rod 17 to move upwards until the extrusion rod 17 is completely separated from the injection tube 21, the phenomenon that the extrusion rod 17 blocks the injection tube 21 to affect injection is avoided, after injection is completed, the extrusion rod 17 drives the end cover 18 to move downwards until the end cover 18 contacts with the injection tube 25, the motor 9 is started, the motor 9 drives the connecting rod 10 to rotate, the connecting rod 10 drives the connecting cylinder 12 to rotate, the connecting cylinder 12 drives the electric telescopic rod 26 and the extrusion rod 17 inside to synchronously rotate, thereby driving the end cover 18 to rotate, the end cover 18 can be in threaded connection with the inside of the injection tube 25, thus the plugging can be directly realized after the injection is completed, the operation is convenient, when the end cover 18 is required to be clamped with the clamping groove 30, the electromagnet 29 is electrified, so that the electromagnet 29 has a certain suction force, then the connecting block 182 at the top of the end cover 18 is clamped into the clamping groove 30, the arrangement of the connecting block 182 can prevent the relative rotation between the end cover 18 and the extrusion rod 17, so that the threaded connection between the end cover 18 and the injection pipe 25 is more convenient, the magnet block 181 arranged at the top of the connecting block 182 can be absorbed by the electromagnet 29, so that the end cover 18 cannot easily fall off from the clamping groove 30, after the threaded connection between the end cover 18 and the injection pipe 25, the electromagnet 29 is powered off, the end cover 18 can easily be separated from the clamping groove 30 to be connected with the injection pipe 25, the end cover 18 is clamped with the clamping groove 30 by the connecting block 182, after the end cover 18 is connected with the injection pipe 25, in order to enable the end cover 18 to be separated from the clamping groove 30 more conveniently, the limiting plate 20 is sleeved on the surface of the injection pipe 25 by the long hole, and when the injection box 4 moves downwards, the limiting plate 20 contacts with the battery body 5 under the action of the spring 19, and the spring 19 can be compressed, therefore, the battery body 5 is pressed by the limiting plate 20 downwards, so that when the extrusion rod 17 moves upwards, the storage battery is compressed by the limiting plate 20, and therefore, the storage battery cannot move upwards along with the end cover 18 and the extrusion rod 17, so that the end cover 18 and the clamping groove 30 are conveniently separated, and meanwhile, the injection tube 21 and the liquid inlet 24 are conveniently separated.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The new energy lithium battery electrolyte injection device is characterized by comprising a base (1);
the liquid injection box (4) is arranged at the top of the base (1);
the battery body (5) is arranged between the base (1) and the liquid injection box (4);
the lifting assembly is arranged on the surface of the base (1), and the liquid injection box (4) is arranged on the surface of the lifting assembly;
the injection assembly is arranged on the surface of the liquid injection box (4);
injection subassembly includes piston board (15), piston board (15) sliding connection is in the inside of annotating liquid case (4), the surface rotation of piston board (15) runs through there is connecting cylinder (12), the bottom of connecting cylinder (12) is provided with extrusion rod (17), the top of annotating liquid case (4) is provided with cylinder (7), the output port fixed mounting of cylinder (7) has coupling shell (8), the bottom of coupling shell (8) is provided with connecting rod (10), connecting rod (10) activity is inserted and is established in the inside of annotating liquid case (4), and the bottom of connecting rod (10) and connecting cylinder (12) fixed connection, the bottom intercommunication of annotating liquid case (4) has injection tube (21) that have the valve.
2. The new energy lithium battery electrolyte injection device according to claim 1, wherein the lifting assembly comprises a vertical rod (3), the vertical rod (3) is fixedly installed on the side wall of the electrolyte injection box (4), a hydraulic cylinder (32) is fixedly installed on the surface of the base (1), an output end port of the hydraulic cylinder (32) is fixedly connected with the vertical rod (3), a vertical rod (33) is fixedly installed on the surface of the base (1), the surface of the vertical rod (33) penetrates through the vertical rod (3) in a sliding manner, the electrolyte injection box (4) is fixedly installed on the surface of the vertical rod (3), a positioning groove is formed in the surface of the base (1), a positioning plate (2) is arranged in the positioning groove, an injection pipe (25) is fixedly installed on the top of the battery body (5), a limiting groove matched with the size of the battery body (5) is formed in the surface of the positioning plate (2), the battery body (5) is placed in the limiting groove so as to achieve that the injection pipe (25) and the injection pipe (21) are located on the surface of the vertical rod (3), and the side wall of the electrolyte injection box (4) is communicated with the liquid injection pipe (11).
3. The new energy lithium battery electrolyte injection device according to claim 2, wherein an electric telescopic rod (26) is fixedly installed inside the connecting cylinder (12), an output end port of the electric telescopic rod (26) is fixedly connected with the extrusion rod (17), the extrusion rod (17) penetrates through the bottom end of the connecting cylinder (12), a cross rod (28) is fixedly installed at the position, close to two sides, of the top of the extrusion rod (17), two sliding grooves (27) are formed in the inner wall of the connecting cylinder (12), the cross rod (28) is in sliding connection with the sliding grooves (27), and the diameter size of the extrusion rod (17) is matched with the inner diameter size of the injection tube (21).
4. The new energy lithium battery electrolyte injection device according to claim 3, wherein a conical chamfer (23) is arranged at a position, close to the inner wall, of the bottom end of the injection tube (21), a liquid discharge tube (22) with a valve is fixedly arranged in the tube wall of the injection tube (21), the bottom end of the liquid discharge tube (22) is flush with the conical chamfer (23), and a liquid inlet (24) with an inner diameter larger than that of the injection tube (25) is arranged at the top of the injection tube (25).
5. The new energy lithium battery electrolyte injection device according to claim 4, wherein a fixing frame (6) is fixedly installed at the top of the electrolyte injection box (4), a cylinder (7) is fixedly installed on the surface of the fixing frame (6), a motor (9) is fixedly installed in the connecting shell (8), the top of the connecting rod (10) is rotatably inserted into the connecting shell (8) and fixedly connected with an output shaft port of the motor (9), the fixing frame (6) is of an n-shaped structure, vertical grooves (14) are formed in two sides, close to each other, of the fixing frame (6), the connecting shell (8) is in sliding connection with the fixing frame (6) through the vertical grooves (14), an end cover (18) with external threads, which is matched with an injection pipe (25) in size, is arranged at the bottom end of the extruding rod (17), and internal threads, which are matched with the end cover (18), are formed in the inner wall of the injection pipe (25).
6. The new energy lithium battery electrolyte injection device according to claim 5, wherein a connecting block (182) is fixedly installed at the top of the end cover (18), a magnet block (181) is fixedly installed at the top of the connecting block (182), a clamping groove (30) with the size matched with that of the connecting block (182) is formed in the bottom end of the extrusion rod (17), an electromagnet (29) is fixedly installed on the top wall of the clamping groove (30), and a sealing gasket (31) is fixedly installed at the bottom of the extrusion rod (17).
7. The new energy lithium battery electrolyte injection device according to claim 6, wherein two limiting rods (13) are fixedly arranged in the electrolyte injection box (4), the two limiting rods (13) penetrate through two piston plates (15) in a sliding mode, and rubber rings (16) are fixedly arranged on the periphery of the piston plates (15).
8. The new energy lithium battery electrolyte injection device according to claim 7, wherein a limiting plate (20) is arranged at the bottom of the electrolyte injection box (4), two springs (19) are fixedly arranged at the top of the limiting plate (20), the top ends of the two springs (19) are fixedly connected with the electrolyte injection box (4), a telescopic sleeve is arranged in the spring (19), and two ends of the telescopic sleeve are fixedly connected with the limiting plate (20) and the electrolyte injection box (4) respectively.
9. The method for using the new energy lithium battery electrolyte injection device according to claim 8, which is characterized by comprising the following steps,
s1, electrolyte is added into the liquid injection box (4) to enable the extrusion rod (17) to extend out of the injection tube (21), and a sealing cover is arranged at the bottom end of the extrusion rod (17);
s2, placing the battery body (5) in a positioning groove on the positioning plate (2), and driving the liquid injection box (4) to move downwards by using the lifting mechanism until the injection tube (21) is abutted with the liquid inlet (24);
s3, driving the piston plate (15) to move downwards by using the air cylinder (7) in the injection assembly, and extruding electrolyte into the battery body (5);
s4, starting an electric telescopic rod (26) to drive an extrusion rod (17) to move downwards to extrude the electrolyte remained in the injection tube (21), so that the residual electrolyte is discharged by a liquid discharge tube (22) until a sealing cover at the bottom of the extrusion rod (17) reaches the position of a liquid inlet (24);
s5, starting a motor (9) to drive the whole connecting cylinder (12) to rotate, so that the connecting cylinder (12) drives the extrusion rod (17) and the sealing cover to rotate until the sealing cover is in threaded connection with the injection pipe (25), and realizing automatic packaging of the battery body (5);
s6, the electromagnet (29) is powered off, the electric telescopic rod (26) drives the extrusion rod (17) to move upwards to be separated from the sealing cover, the lifting assembly is used for driving the liquid injection box (4) to move upwards, and the electrolyte injection of the battery body (5) is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311085216.8A CN117239366A (en) | 2023-08-28 | 2023-08-28 | New energy lithium battery electrolyte injection device and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311085216.8A CN117239366A (en) | 2023-08-28 | 2023-08-28 | New energy lithium battery electrolyte injection device and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118630438A (en) * | 2024-08-14 | 2024-09-10 | 东莞市博森新能源有限公司 | Lithium battery pack processing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118630438A (en) * | 2024-08-14 | 2024-09-10 | 东莞市博森新能源有限公司 | Lithium battery pack processing equipment |
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