Electrolyte injection device of energy storage battery

Abstract

The invention relates to the technical field of battery production, in particular to an electrolyte injection device of an energy storage battery, which comprises a U-shaped base, two vertical plates are fixedly connected to the inner bottom of the U-shaped base, first grooves are formed in the upper parts of the side walls, far away from each other, of the two vertical plates, and guide rails are fixedly connected to the inner bottoms of the two first grooves; and the shaking mechanism comprises two U-shaped plates, the inner side walls of the two U-shaped plates are attached to the side walls of the two guide rails correspondingly, and the side walls of the two U-shaped plates are rotationally connected with round rods correspondingly. According to the invention, the energy storage battery body can be driven to continuously rotate forwards and backwards, and the electrolyte in the energy storage battery body is continuously shaken at high frequency, so that the electrolyte can be uniformly distributed in the energy storage battery body, chemical components in the electrolyte are ensured to be fully absorbed by positive and negative electrode materials in the energy storage battery body, and electric energy storage and release are realized; the wettability of the electrolyte and the pole piece is improved, and the performance of the battery in the charging and discharging process is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production, and in particular to an electrolyte injection device for an energy storage battery. Background Art

[0002] During the production process of energy storage batteries, the electrolyte is an important component of the energy storage battery. It is mainly made of high-purity organic solvents, electrolyte lithium salts, additives and other raw materials in a specific proportion.

[0003] In the patent application number "202110649034.3" "A device for injecting electrolyte into lithium-ion batteries", the solution places the lithium batteries on the conveyor belts on both sides, and they will be transported in the conveying direction of the conveyor belts, thereby realizing the conveying work of the lithium batteries before and after injection. When the lithium batteries are blocked by the positioning bars, they will be positioned in the conveying direction of the conveyor belts, thereby realizing the positioning work during the injection of the lithium batteries. At the same time, the lithium batteries to be injected can also be clamped in the center. However, this technical solution still has the following problems during use: After the electrolyte is injected, it simply flows through the energy storage battery by itself to fill it. It is difficult to ensure the uniform distribution of the electrolyte inside the battery, thereby improving the wettability of the electrolyte and the electrode, and improving the performance of the battery during the charging and discharging process. In addition, for some electric vehicles and energy storage systems that require high battery performance and long-term stable operation, secondary injection is required during the production process. However, this technical solution cannot perform secondary electrolyte injection and can only perform repeated operations. On this basis, an electrolyte injection device for an energy storage battery is proposed. Summary of the Invention

[0004] The present invention proposes an electrolyte injection device for an energy storage battery, which is used to solve the technical problems existing in the above-mentioned background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An electrolyte injection device for an energy storage battery, comprising: A U-shaped base, wherein two vertical plates are fixedly connected to the bottom of the U-shaped base, a first groove is formed above the side walls of the two vertical plates that are away from each other, and a guide rail is fixedly connected to the bottom of the two first grooves; A rocking mechanism comprising two U-shaped plates, the inner side walls of the two U-shaped plates respectively fitting with the two guide rail side walls, the two U-shaped plate side walls being rotatably connected to round rods, the two round rod side walls being slidably connected to rectangular rods, the side walls of the two rectangular rods being close to each other being fixedly connected to splints, and the lower ends of the two rectangular rods being connected to the energy storage battery body via a connecting mechanism; The round rod is fixedly connected to a circular ring on the side wall close to the splint, and a torsion spring is sleeved on the side wall close to the splint. One end of the torsion spring is fixedly connected to the side wall of the C-shaped plate, and the other end of the torsion spring is fixedly connected to the side wall of the circular ring. The side wall of the round rod away from the splint is fixedly connected to a gear, and the inner side wall of the C-shaped base is fixedly connected to multiple tooth plates through a support plate, and the gear intermittently engages with the multiple tooth plates during movement.

[0006] Preferably, the connecting mechanism includes a concave seat, the outer side wall of the energy storage battery body is fitted with the inner side wall of the concave seat, the lower ends of the two rectangular rods are fixedly connected to the first L-shaped plates, and the side wall of the concave seat is provided with two sliding grooves corresponding to the two first L-shaped plates one by one, and the side walls of the two first L-shaped plates are respectively slidably connected to the inner walls of the two sliding grooves.

[0007] Preferably, both of the C-shaped plates are provided with a clamping mechanism for clamping the energy storage battery body, and the clamping mechanism includes two second L-shaped plates respectively slidably connected to the side walls of the two C-shaped plates away from each other, and the lower ends of the two second L-shaped plates are fixedly connected to the first wedge plate, and the first wedge plate is rotatably connected to the side wall of the C-shaped plate close to the C-shaped plate. The end of the cylinder away from the first wedge plate is fixedly connected to the end of the rectangular rod close to it, and the side wall of the second L-shaped plate is elastically connected to the side wall of the C-shaped plate close to it through multiple springs. The inner side wall of the C-shaped base is fixedly connected to the second wedge plate through a bracket, and the first wedge plate fits into the side wall of the second wedge plate during movement.

[0008] Preferably, the two side walls of the U-shaped plates are fixedly connected by a U-shaped rod, and the second wedge-shaped plate is located above the multiple tooth plates.

[0009] Preferably, a liquid injection mechanism is provided on the C-shaped base, and the liquid injection mechanism includes a C-shaped cover plate fixedly connected to the upper end of the C-shaped base, the upper end of the C-shaped cover plate is rotatably connected to two rectangular plates via a rotating shaft, the lower ends of the two rectangular plates are fixedly connected to a liquid storage tank via two cylinders, the bottom of the liquid storage tank is fixedly connected to a liquid outlet pipe, a solenoid valve is installed in the liquid outlet pipe, the top of the liquid storage tank is fixedly connected to a liquid inlet pipe, and a liquid injection port is provided at the upper end of the energy storage battery body.

[0010] Preferably, a conveying mechanism is provided on the C-shaped base, and the conveying mechanism includes two cross bars rotatably connected to the side walls of the C-shaped base, and the two side walls of the cross bars are fixedly connected to two conveying wheels, and the two side walls of the conveying wheels on the same side are commonly connected to a conveyor belt, and the two side walls of the conveyor belts are fixedly connected to a push plate, and the side walls of the C-shaped base are fixedly connected to a motor, and the movable end of the motor is fixedly connected to one end of one of the cross bars, and a second groove is provided below the side walls of the two vertical plates away from each other, and the push plate moves in the second groove following the conveyor belt.

[0011] Preferably, the side walls of the C-shaped base are fixedly connected to a plurality of first connecting rods, and the side walls of the plurality of first connecting rods are commonly slidably connected to a movable plate. The upper end of the C-shaped cover plate is fixedly connected to a fixed plate, and the side walls of the fixed plate are slidably connected to two second connecting rods corresponding to the two rectangular plates. The side walls of the two second connecting rods close to the first connecting rods are fixedly connected to the side walls of the movable plate, and the side walls of the second connecting rods away from the movable plate are rotatably connected to the upper side walls of the corresponding rectangular plates through the third connecting rod.

[0012] Preferably, one end of one of the cross bars close to the movable plate is fixedly connected to a reciprocating screw, and the side wall of the reciprocating screw is threadedly connected to the side wall of the movable plate.

[0013] Compared with the existing technology, the advantages of the present invention are: 1. The present invention, by providing a shaking mechanism and a connecting mechanism, can drive the energy storage battery body to continuously rotate forward and reverse, and continuously shake the electrolyte located in the energy storage battery body at a high frequency, so that the electrolyte can be evenly distributed in the energy storage battery body, ensuring that the chemical components in the electrolyte are fully absorbed by the positive and negative electrode materials in the energy storage battery body, realizing the storage and release of electric energy, improving the wettability of the electrolyte and the electrode sheets, and improving the performance of the battery during the charging and discharging process, avoiding the existing technical solution in which the electrolyte simply flows by itself to fill the energy storage battery body, making it difficult to ensure the uniform distribution of the electrolyte inside the energy storage battery body.

[0014] 2. The present invention provides a clamping mechanism. On the one hand, it can clamp the energy storage battery body in the center to ensure the subsequent stable injection of liquid into the energy storage battery body. On the other hand, the presence of the cylinder ensures that the subsequent rotation of the round rod will not affect the stable fit between the two first wedge plates and the two second wedge plates.

[0015] 3. The present invention is provided with a reciprocating screw, a movable plate, a second connecting rod and a third connecting rod. The rotation of one of the cross bars drives the reciprocating screw to rotate synchronously, thereby driving the movable plate to move back and forth on the side wall of the reciprocating screw. The movable plate drives the two rectangular plates to rotate continuously through the two second connecting rods and the two third connecting rods, and drives the two liquid storage tanks to rotate continuously, so that the two liquid storage tanks are evenly distributed, thereby preventing the electrolyte in the two liquid storage tanks from standing and separating for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of an electrolyte injection device for an energy storage battery proposed by the present invention; Figure 2 For the present invention Figure 1 A vertical cross-sectional structural diagram of the middle shaking mechanism; Figure 3 For the present invention Figure 2 A schematic diagram of the structure at center A; Figure 4 For the present invention Figure 1 A vertical cross-sectional structural diagram of ; Figure 5 For the present invention Figure 1 Schematic diagram of the left-view plane structure; Figure 6 For the present invention Figure 1 A schematic diagram of a top cross-sectional structure; Figure 7 For the present invention Figure 1 A schematic diagram of the rear planar structure of the shaking mechanism, conveying mechanism, and injection mechanism; Figure 8 For the present invention Figure 1 Schematic diagram of the rear view structure.

[0017] Figure: 1, U-shaped base; 2, vertical plate; 3, first groove; 4, guide rail; 5, U-shaped plate; 6, round rod; 7, rectangular rod; 8, clamping plate; 9, concave seat; 10, energy storage battery body; 11, first L-shaped plate; 12, chute; 13, liquid filling port; 14, second L-shaped plate; 15, first wedge-shaped plate; 16, cylinder; 17, second wedge-shaped plate; 18, spring; 19, U-shaped cover; 20, rectangular plate; 21 , cylinder; 22, liquid storage tank; 23, liquid outlet pipe; 24, liquid inlet pipe; 25, cross bar; 26, conveyor wheel; 27, conveyor belt; 28, push plate; 29, motor; 30, first connecting rod; 31, moving plate; 32, fixed plate; 33, second connecting rod; 34, third connecting rod; 35, reciprocating screw; 36, gear; 37, tooth plate; 38, ring; 39, torsion spring; 40, second groove; 41, U-shaped rod. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "fixed," "provided with," and the like should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0020] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0021] Reference Figure 1-8 This embodiment provides an electrolyte injection device for an energy storage battery, comprising a U-shaped base 1, wherein two vertical plates 2 are fixedly connected to the bottom of the U-shaped base 1, and a first groove 3 is formed above the side walls of the two vertical plates 2 that are away from each other, and a guide rail 4 is fixedly connected to the bottom of the two first grooves 3 (combined with Figure 1 、 Figure 6 and Figure 7 ); The rocking mechanism includes two U-shaped plates 5, the inner side walls of the two U-shaped plates 5 are respectively fitted with the side walls of the two guide rails 4 (such as Figure 3 As shown), the side walls of the two U-shaped plates 5 are fixedly connected by a U-shaped rod 41, and the side walls of the two U-shaped plates 5 are rotatably connected to the round rod 6. The side walls of the two round rods 6 are slidably connected to the rectangular rod 7. The side walls of the two rectangular rods 7 close to each other are fixedly connected to the clamping plate 8, and the lower ends of the two rectangular rods 7 are connected to the energy storage battery body 10 through a connecting mechanism; The side wall of the round rod 6 close to the splint 8 is fixedly connected with a ring 38, and the side wall of the round rod 6 close to the splint 8 is provided with a torsion spring 39. One end of the torsion spring 39 is fixedly connected to the side wall of the U-shaped plate 5, and the other end of the torsion spring 39 is fixedly connected to the side wall of the ring 38. The side wall of the round rod 6 away from the splint 8 is fixedly connected with a gear 36. The inner side wall of the U-shaped base 1 is fixedly connected with a plurality of tooth plates 37 (such as Figure 6 As shown), the gear 36 intermittently meshes with multiple tooth plates 37 during the movement.

[0022] The connecting mechanism includes a concave seat 9, and the outer wall of the energy storage battery body 10 is in contact with the inner wall of the concave seat 9 (eg Figure 3 As shown), the lower ends of the two rectangular rods 7 are fixedly connected to the first L-shaped plate 11, and the side walls of the concave seat 9 are provided with two sliding grooves 12 corresponding to the two first L-shaped plates 11, and the side walls of the two first L-shaped plates 11 are slidably connected to the inner walls of the two sliding grooves 12 respectively.

[0023] When the gear 36 is not engaged with the toothed plate 37, the torsion spring 39 is in an initial state, that is, the two rectangular rods 7 and the energy storage battery body 10 are in an initial placement state. When the gear 36 is engaged with the toothed plate 37 during movement, the gear 36 rotates under the action of the toothed plate 37, driving the two round rods 6 to rotate, driving the two rectangular rods 7, the two clamping plates 8, the two first L-shaped plates 11, the concave seat 9 and the energy storage battery body 10 to rotate synchronously in the forward direction. At this time, the torsion spring 39 rotates through the ring 38, and elastic potential energy is stored in the torsion spring 39; After the gear 36 is separated from the tooth plate 37 after movement, the torsion spring 39 releases elastic potential energy, driving the two rectangular rods 7 and the energy storage battery body 10 to rotate in the opposite direction to the initial position. Then, after the gear 36 intermittently engages with multiple tooth plates 37 during the movement, it drives the energy storage battery body 10 to rotate forward and reverse continuously (it should be noted that the number of teeth on the tooth plate 37 is small, so that the energy storage battery body 10 does not rotate a large angle, but providing multiple tooth plates 37 can increase the rotation frequency of the energy storage battery body 10). In this way, the electrolyte in the energy storage battery body 10 can be continuously shaken at a high frequency, so that the electrolyte can be evenly distributed in the energy storage battery body 10, ensuring that the chemical components in the electrolyte are fully absorbed by the positive and negative electrode materials in the energy storage battery body 10, realizing energy storage and release, improving the wettability of the electrolyte and the electrode sheets, and improving the performance of the battery during the charging and discharging process, avoiding the existing technical solution in which the electrolyte simply flows by itself to fill the energy storage battery body 10, and it is difficult to ensure the uniform distribution of the electrolyte in the energy storage battery body 10.

[0024] In one embodiment of the present invention, both U-shaped plates 5 are provided with a clamping mechanism for clamping the energy storage battery body 10. The clamping mechanism includes two second L-shaped plates 14 slidably connected to the side walls of the two U-shaped plates 5 away from each other. The lower ends of the two second L-shaped plates 14 are fixedly connected to a first wedge-shaped plate 15. The first wedge-shaped plate 15 is rotatably connected to the side wall of the U-shaped plate 5 and is connected to a cylinder 16 (such as Figure 3 As shown, the end of the cylinder 16 away from the first wedge-shaped plate 15 is fixedly connected to the end of the rectangular rod 7 close to it, the side wall of the second L-shaped plate 14 is elastically connected to the side wall of the U-shaped plate 5 close to it through multiple springs 18, and the inner side wall of the U-shaped base 1 is fixedly connected to the second wedge plate 17 through a bracket. The first wedge plate 15 fits with the side wall of the second wedge plate 17 during the movement, and the second wedge plate 17 is located above the multiple tooth plates 37 (as shown in FIG. Figure 7 shown).

[0025] The two U-shaped plates 5 move synchronously on the two guide rails 4, so that when the two first wedge-shaped plates 15 are respectively fitted with the two second wedge-shaped plates 17 (as shown in FIG. Figure 3As shown in FIG. 1 ), the two first wedge plates 15 are moved closer to each other by the action of the two second wedge plates 17. The two clamping plates 8 are driven closer to each other by the two cylinders 16 and the two rectangular rods 7, thereby clamping the energy storage battery body 10 in the center, ensuring the subsequent stable injection of liquid into the energy storage battery body 10. In addition, the presence of the cylinder 16 ensures that the subsequent rotation of the round rod 6 will not affect the stable fit between the two first wedge plates 15 and the two second wedge plates 17.

[0026] In one embodiment of the present invention, a liquid injection mechanism is provided on the U-shaped base 1, and the liquid injection mechanism includes a U-shaped cover plate 19 fixedly connected to the upper end of the U-shaped base 1. The upper end of the U-shaped cover plate 19 is rotatably connected to two rectangular plates 20 through a rotating shaft. It should be noted that the side walls of the two rectangular plates 20 are both arc-shaped, and the lower ends of the two rectangular plates 20 are fixedly connected to a liquid storage tank 22 through two cylinders 21. The bottom of the liquid storage tank 22 is fixedly connected to a liquid outlet pipe 23, and a solenoid valve is installed in the liquid outlet pipe 23. The top of the liquid storage tank 22 is fixedly connected to a liquid inlet pipe 24, and a liquid injection port 13 (such as Figure 3 shown).

[0027] Two liquid storage tanks 22 are provided. For some electric vehicles and energy storage systems that require high battery performance and long-term stable operation, the energy storage battery body 10 can be directly injected with liquid twice, without having to repeat the operation as in the existing solution. Moreover, for energy storage battery bodies 10 that are sensitive to cost and do not require high battery performance, the use of one liquid storage tank 22 can be stopped and replaced with a single injection, which makes the application range of the device wide.

[0028] It should be noted that if Figure 7 As shown, a plurality of tooth plates 37 are respectively located on the left side of the two liquid storage tanks 22 so that the energy storage battery body 10 is shaken after the liquid is filled.

[0029] In one embodiment of the present invention, a conveying mechanism is provided on the U-shaped base 1, and the conveying mechanism includes two cross bars 25 rotatably connected to the side walls of the U-shaped base 1, and the side walls of the two cross bars 25 are fixedly connected to two conveying wheels 26, and the side walls of the two conveying wheels 26 on the same side are commonly connected to a conveyor belt 27, and the side walls of the two conveyor belts 27 are fixedly connected to a push plate 28, and the side walls of the U-shaped base 1 are fixedly connected to a motor 29, and the movable end of the motor 29 is fixedly connected to one end of one of the cross bars 25. A second groove 40 is opened below the side walls of the two vertical plates 2 that are away from each other, and the push plate 28 moves in the second groove 40 following the conveyor belt 27 (as shown in FIG. Figure 5 As shown), it will not affect the normal movement of the push plate 28.

[0030] It should be noted that, during the synchronous movement of the two conveyor belts 27, the two U-shaped plates 5 on the two guide rails 4 can be driven to move synchronously from left to right (eg Figure 1 As shown), the energy storage battery body 10 is automatically clamped, injected, and shaken in the center. At the same time, as the two conveyor belts 27 move, the two first wedge-shaped plates 15 can be separated from the two second wedge-shaped plates 17 respectively. At this time, the energy storage battery body 10 is away from the U-shaped cover plate 19. The staff can use the U-shaped rod 41 to remove the two U-shaped plates 5 from the two guide rails 4, and then take out the energy storage battery body 10. Then, the energy storage battery body 10 can be placed in the concave seat 9 again. Finally, the two U-shaped plates 5 corresponding to the energy storage battery body 10 that has not been injected with electrolyte are replaced on the two guide rails 4 on the left, thereby realizing the assembly line injection of the energy storage battery body 10; At the same time, the distance between two adjacent pushing plates 28 on the same conveyor belt 27 is consistent with the distance between the two liquid storage tanks 22. That is, when the pushing plates 28 on the two conveyor belts 27 push one of the energy storage battery bodies 10 to the bottom of the liquid storage tank 22 on the right, the energy storage battery body 10 located at the rear is moved to the bottom of the liquid storage tank 22 on the right, so that the two energy storage battery bodies 10 can be injected with liquid at the same time, thereby accelerating the secondary injection efficiency of the energy storage battery body 10.

[0031] In one embodiment of the present invention, a plurality of first connecting rods 30 are fixedly connected to the side wall of the U-shaped base 1, and the side walls of the plurality of first connecting rods 30 are commonly slidably connected to a movable plate 31. The upper end of the U-shaped cover plate 19 is fixedly connected to a fixed plate 32, and the side wall of the fixed plate 32 is slidably connected to two second connecting rods 33 corresponding to the two rectangular plates 20. The side walls of the two second connecting rods 33 close to the first connecting rod 30 are fixedly connected to the side walls of the movable plate 31, and the side walls of the second connecting rods 33 away from the movable plate 31 are rotatably connected to the upper side walls of the corresponding rectangular plates 20 through the third connecting rod 34.

[0032] One end of one of the cross bars 25 close to the movable plate 31 is fixedly connected to a reciprocating screw 35 , and the side wall of the reciprocating screw 35 is threadedly connected to the side wall of the movable plate 31 .

[0033] The two cross bars 25 drive the four conveying wheels 26 to rotate, so that the two conveyor belts 27 drive the multiple push plates 28 to move. When the two U-shaped plates 5 move, the reciprocating screw 35 rotates synchronously, thereby driving the movable plate 31 to move back and forth along the side wall of the reciprocating screw 35. The movable plate 31 drives the two rectangular plates 20 to rotate continuously through the two second connecting rods 33 and the two third connecting rods 34, and drives the two liquid storage tanks 22 to rotate continuously, so that the two liquid storage tanks 22 are evenly distributed, thereby preventing the electrolyte in the two liquid storage tanks 22 from being separated by standing for a long time. At the same time, when the two U-shaped plates 5 move so that the energy storage battery body 10 moves to the bottom of the liquid storage tank 22 to prepare for liquid injection, the two cross bars 25 stop rotating, and the moving plate 31 is at the initial position on the reciprocating screw 35 (as shown in FIG. Figure 5As shown), at this time, the movable plate 31 drives the two rectangular plates 20 to the initial position through the two second connecting rods 33 and the two third connecting rods 34, and drives the two liquid storage tanks 22 to the initial position, so that the two liquid outlet pipes 23 are facing the liquid injection port 13.

[0034] When injecting electrolyte into the energy storage battery body 10, the energy storage battery body 10 is first placed in the concave seat 9. Then, the two U-shaped plates 5 corresponding to the energy storage battery body 10 that has not been injected with electrolyte are placed on the two guide rails 4 on the left side. The driving motor 29 rotates. At this time, the two cross bars 25 drive the four conveyor wheels 26 to rotate, so that the two conveyor belts 27 drive the multiple push plates 28 to move, so that two of the push plates 28 are in contact with the side walls of the two U-shaped plates 5 and push the two U-shaped plates 5 to move synchronously. The two U-shaped plates 5 move synchronously on the two guide rails 4, so that when the two first wedge-shaped plates 15 are respectively fitted with the two second wedge-shaped plates 17 (as shown in FIG. Figure 3 As shown), at this time, the two first wedge plates 15 move closer to each other under the action of the two second wedge plates 17, and the two clamping plates 8 move closer to each other through the two cylinders 16 and the two rectangular rods 7, clamping the energy storage battery body 10 in the center to ensure stable liquid injection into the energy storage battery body 10 later; When the two U-shaped plates 5 move so that the energy storage battery body 10 is directly below the left liquid storage tank 22, the liquid outlet pipe 23 is now facing the liquid filling port 13. At this time, the two cylinders 21 are adjusted to extend, driving the liquid storage tank 22 and the liquid outlet pipe 23 downward, so that the liquid outlet pipe 23 is inserted into the liquid filling port 13. Then, the solenoid valve in the liquid outlet pipe 23 is energized to open, and electrolyte is injected into the energy storage battery body 10. After the injection is completed, the solenoid valve is de-energized and closed, and the two cylinders 21 are adjusted to retract. Then the motor 29 continues to rotate. When the two L-shaped plates 5 move so that the two gears 36 are engaged with the toothed plate 37, the two gears 36 rotate forward under the action of the toothed plate 37, driving the two round rods 6 to rotate, and driving the two rectangular rods 7, the two clamping plates 8, the two first L-shaped plates 11, the concave seat 9 and the energy storage battery body 10 to rotate forward synchronously. At this time, the torsion spring 39 rotates through the ring 38, and elastic potential energy is stored in the torsion spring 39. After the two gears 36 are separated from the tooth plate 37 after movement, the elastic potential energy of the torsion spring 39 is released, driving the two rectangular rods 7 and the energy storage battery body 10 to rotate in the opposite direction to the initial position. Then, after the two gears 36 intermittently engage with the multiple tooth plates 37 during the movement, the energy storage battery body 10 is driven to rotate forward and backward continuously. This can continuously and frequently shake the electrolyte in the energy storage battery body 10, so that the electrolyte can be evenly distributed in the energy storage battery body 10, ensuring that the chemical components in the electrolyte are fully absorbed by the positive and negative electrode materials in the energy storage battery body 10, realizing the storage and release of electric energy, improving the wettability of the electrolyte and the electrode sheet, and improving the performance of the battery during the charging and discharging process. This avoids the problem in the prior art that the electrolyte only flows by itself to fill the energy storage battery body 10, making it difficult to ensure the uniform distribution of the electrolyte in the energy storage battery body 10. Then, when the two U-shaped plates 5 are moved so that the energy storage battery body 10 is located directly below the right liquid storage tank 22, the above steps are repeated to achieve a second injection of liquid into the energy storage battery body 10. For energy storage battery bodies 10 that are cost-sensitive and have low requirements for battery performance, one liquid storage tank 22 can be stopped and liquid injection can be performed once. When the two U-shaped plates 5 move so that the two first wedge-shaped plates 15 are separated from the two second wedge-shaped plates 17, the two clamping plates 8 are separated from the energy storage battery body 10 under the action of the multiple springs 18. At this time, the energy storage battery body 10 is separated from the U-shaped cover plate 19. The staff can remove the two U-shaped plates 5 from the two guide rails 4 using the U-shaped rod 41, and then remove the energy storage battery body 10. The energy storage battery body 10 can then be placed in the concave seat 9 again. Finally, the two U-shaped plates 5 corresponding to the energy storage battery body 10 that has not been injected with electrolyte are replaced on the two guide rails 4 on the left, thereby realizing the assembly line injection of the energy storage battery body 10. At the same time, the rotation of one of the cross bars 25 drives the reciprocating screw 35 to rotate synchronously, thereby driving the movable plate 31 to move back and forth along the side wall of the reciprocating screw 35. The movable plate 31 drives the two rectangular plates 20 to rotate continuously through the two second connecting rods 33 and the two third connecting rods 34, and drives the two liquid storage tanks 22 to rotate continuously, so that the two liquid storage tanks 22 are evenly distributed, thereby preventing the electrolyte in the two liquid storage tanks 22 from being separated by standing for a long time. When the two U-shaped plates 5 move so that the energy storage battery body 10 moves to the bottom of the liquid storage tank 22 to prepare for liquid injection, the two cross bars 25 stop rotating, and the moving plate 31 is at the initial position on the reciprocating screw 35 (as shown in FIG. Figure 5 As shown), at this time, the movable plate 31 drives the two rectangular plates 20 to the initial position through the two second connecting rods 33 and the two third connecting rods 34, and drives the two liquid storage tanks 22 to the initial position, so that the two liquid outlet pipes 23 are facing the liquid injection port 13.

[0035] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An electrolyte injection device for an energy storage battery, characterized in that: Including: A U-shaped base (1), two vertical plates (2) are fixedly connected to the inner bottom of the U-shaped base (1), first grooves (3) are opened above the side walls of the two vertical plates (2) away from each other, and guide rails (4) are fixedly connected to the inner bottoms of the two first grooves (3); A shaking mechanism, the shaking mechanism includes two U-shaped plates (5), the inner side walls of the two U-shaped plates (5) are respectively fitted with the side walls of the two guide rails (4), round rods (6) are rotatably connected to the side walls of the two U-shaped plates (5), rectangular rods (7) are slidably connected through the side walls of the two round rods (6), clamping plates (8) are fixedly connected to the side walls of the two rectangular rods (7) close to each other, and the lower ends of the two rectangular rods (7) are connected to a storage battery body (10) through a connecting mechanism; A circular ring (38) is fixedly connected to the side wall of the round rod (6) close to the clamping plate (8), a torsion spring (39) is sleeved on the side wall of the round rod (6) close to the clamping plate (8), one end of the torsion spring (39) is fixedly connected to the side wall of the U-shaped plate (5), the other end of the torsion spring (39) is fixedly connected to the side wall of the circular ring (38), a gear (36) is fixedly connected to the side wall of the round rod (6) away from the clamping plate (8), and a plurality of toothed plates (37) are fixedly connected to the inner side wall of the U-shaped base (1) through support plates.

2. The electrolyte injection device for an energy storage battery according to claim 1, characterized in that: The connecting mechanism includes a concave seat (9), the outer side wall of the storage battery body (10) is fitted with the inner side wall of the concave seat (9), first L-shaped plates (11) are fixedly connected to the lower ends of the two rectangular rods (7), two chutes (12) corresponding to the two first L-shaped plates (11) are opened on the side wall of the concave seat (9), and the side walls of the two first L-shaped plates (11) are respectively slidably connected to the inner walls of the two chutes (12).

3. The electrolyte injection device for an energy storage battery according to claim 1, characterized in that: Clamping mechanisms for clamping the storage battery body (10) are provided on the two U-shaped plates (5), the clamping mechanisms include two second L-shaped plates (14) slidably connected to the side walls of the two U-shaped plates (5) away from each other, first wedge-shaped plates (15) are fixedly connected to the lower ends of the two second L-shaped plates (14), cylinders (16) are rotatably connected to the side walls of the first wedge-shaped plates (15) close to the U-shaped plates (5), one end of the cylinder (16) away from the first wedge-shaped plate (15) is fixedly connected to one end of the rectangular rod (7) close to it, the side walls of the second L-shaped plates (14) are elastically connected to the side walls of the U-shaped plates (5) close to them through a plurality of springs (18), a second wedge-shaped plate (17) is fixedly connected to the inner side wall of the U-shaped base (1) through a bracket, and the side wall of the first wedge-shaped plate (15) is fitted with the side wall of the second wedge-shaped plate (17) during the movement process.

4. The electrolyte injection device for an energy storage battery according to claim 3, characterized in that: The side walls of the two U-shaped plates (5) are fixedly connected through a U-shaped rod (41), and the second wedge-shaped plate (17) is located above the plurality of toothed plates (37).

5. The electrolyte injection device for an energy storage battery according to claim 1, characterized in that: A U-shaped base (1) is provided with a liquid injection mechanism. The liquid injection mechanism includes a U-shaped cover plate (19) fixedly connected to the upper end of the U-shaped base (1). Two rectangular plates (20) are rotatably connected to the upper end of the U-shaped cover plate (19) through a rotating shaft. The lower ends of the two rectangular plates (20) are fixedly connected to a liquid storage tank (22) through two cylinders (21). A liquid outlet pipe (23) is fixedly connected to the inner bottom of the liquid storage tank (22). A solenoid valve is installed in the liquid outlet pipe (23). A liquid inlet pipe (24) is fixedly connected to the inner top of the liquid storage tank (22). A liquid injection port (13) is opened at the upper end of the energy storage battery body (10).

6. The electrolyte injection device for an energy storage battery according to claim 5, characterized in that: The U-shaped base (1) is provided with a conveying mechanism. The conveying mechanism includes two cross bars (25) rotatably connected to the side wall of the U-shaped base (1). Two conveying wheels (26) are fixedly connected to the side walls of the two cross bars (25). A conveyor belt (27) is commonly connected to the side walls of the two conveying wheels (26) on the same side. Two push plates (28) are fixedly connected to the side walls of the two conveyor belts (27). A motor (29) is fixedly connected to the side wall of the U-shaped base (1). The movable end of the motor (29) is fixedly connected to one end of one of the cross bars (25). Second grooves (40) are opened at the lower parts of the mutually remote side walls of the two vertical plates (2). The push plates (28) move in the second grooves (40) following the conveyor belts (27).

7. The electrolyte injection device for an energy storage battery according to claim 6, characterized in that: A plurality of first connecting rods (30) are fixedly connected to the side wall of the U-shaped base (1). A moving plate (31) is slidably connected to the side walls of the plurality of first connecting rods (30). A fixed plate (32) is fixedly connected to the upper end of the U-shaped cover plate (19). Two second connecting rods (33) corresponding to the two rectangular plates (20) are slidably connected to the side wall of the fixed plate (32). The side walls of the two second connecting rods (33) close to the first connecting rods (30) are fixedly connected to the side wall of the moving plate (31). The side walls of the second connecting rods (33) remote from the moving plates (31) are rotatably connected to the upper parts of the side walls of the corresponding rectangular plates (20) through third connecting rods (34).

8. The electrolyte injection device for an energy storage battery according to claim 7, characterized in that: One end of one of the cross bars (25) close to the moving plate (31) is fixedly connected to a reciprocating lead screw (35). The side wall of the reciprocating lead screw (x) is threadedly connected to the side wall of the moving plate (31).

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