Battery cell supply device for battery cell liquid injection

Abstract

The utility model relates to a kind of for the electric core of electric core injection, including pedestal, two motion guide rails, two mobile platform base, lifting cylinder, drive assembly and pairing assembly;According to the pairing assembly of setting, a certain number of electric cores can be temporarily stored, so that after the defective electric core appears in the process of electric core injection, corresponding number of electric cores can be obtained from the pairing assembly, so that the number of electric cores in the electric core group at the electric core injection starting point is quickly supplemented complete, avoid the problem that transport robot needs to transport twice electric core when and after the defective electric core appears, to improve the efficiency of the process of electric core injection. Meanwhile according to the setting of two motion guide rails, two mobile platform base and drive assembly, when the defective electric core does not appear, the pairing assembly can be operated to standby position, to avoid bumping with other devices, effectively protect the electric core on the pairing assembly.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, specifically to a battery cell supply device for electrolyte injection into battery cells. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] With the rapid development of new energy sources, power batteries are being used more and more widely in electric vehicles, smart devices, and other fields, leading to increasingly fierce competition and higher demands on battery production efficiency. Cell electrolyte injection, as a crucial step in the battery production process, also significantly impacts battery production efficiency.

[0004] In existing technologies, the electrolyte injection process for battery cells typically involves injecting four cells together as a group. However, during this process, defective cells may appear due to issues such as poor barcode scanning, incorrect weighing, or incorrect site selection. In such cases, a transport robot needs to use a robotic arm to remove the defective cells from the current group and discard them. The robot then returns to the cell pick-up and drop-off point, uses the robotic arm to retrieve the corresponding number of cells from the next group, and returns to the starting point of the electrolyte injection process to add the retrieved cells back to the current group, continuing the electrolyte injection process.

[0005] However, this method results in a situation where, when a defective cell is found, the cell assembly at the starting point of electrolyte injection requires two round trips by a transport robot to ensure the integrity of the cell quantity within the assembly. Furthermore, since the cell pick-up and drop-off points also transport four cells as a group, subsequent cell assemblies at the starting point of electrolyte injection also require two round trips by a transport robot to ensure the integrity of the cell quantity within the assembly. This severely impacts the electrolyte injection process and consequently affects battery manufacturing efficiency. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a battery cell supply device for battery cell liquid injection. By setting multiple sets of independently liftable pairing components, a corresponding number of battery cells can be provided after a defective battery cell is detected. Combined with a robotic arm, the battery cells are replenished to the current battery cell group. This eliminates the need for the robot to return to the battery cell pick-up and drop point and obtain battery cells from the next battery cell group, thus shortening the time spent on the battery cell liquid injection process and improving the efficiency of the entire battery manufacturing process.

[0007] The purpose of this utility model is to provide a battery cell supply device for electrolyte injection, comprising a base, two motion guide rails, two movable platform bases, a lifting cylinder, a drive assembly, and a pairing assembly; the two motion guide rails are arranged parallel to each other on the base, with a gap between them; the lifting cylinder is disposed in the gap; the two movable platform bases are disposed on both sides of the lifting cylinder and are fixedly connected to the lifting cylinder, and the two movable platforms are nested on the two motion guide rails respectively; the drive assembly is nested and connected to one of the movable platform bases; the pairing assembly is disposed above the lifting cylinder and is fixedly connected to the lifting cylinder; the at least four sets of pairing assemblies are used to place the battery cells.

[0008] As a further technical solution, the pairing assembly includes a support plate and two pairing blocks, the lifting cylinder includes a lifting shaft assembly, and each lifting shaft assembly includes two lifting shafts; the lower surfaces at both ends of the support plate are fixedly connected to the two lifting shafts in the lifting shaft assembly; the two pairing blocks are symmetrically arranged at both ends of the upper surface of the support plate.

[0009] As a further technical solution, the support plate is in a horizontal state.

[0010] As a further technical solution, the pairing assembly also includes a fixing plate and two limiting blocks; the fixing plate is fixedly connected to the upper surface of the lifting cylinder; the fixing plate has through holes at both ends, and the two lifting shafts in the lifting shaft assembly pass through the through holes at both ends of the fixing plate respectively; the two limiting blocks are set on the upper surface of the through holes at both ends of the fixing plate and nested on the lifting shafts.

[0011] As a further technical solution, the drive component includes a servo motor and a module lead screw, the servo motor being mounted on the base; the module lead screw being fixedly connected to the servo motor, and one of the two mobile platform bases being fixedly connected to the module lead screw.

[0012] As a further technical solution, the module lead screw and the motion guide rail are parallel to each other.

[0013] As a further technical solution, the battery cell supply device also includes a tank chain cover and a tank chain. The tank chain cover is mounted on a base, one end of the tank chain is located inside the tank chain cover, and the other end is fixedly connected to another mobile platform base.

[0014] As a further technical solution, the tank track cover and the motion guide rail are parallel to each other.

[0015] As a further technical solution, the battery cell supply device also includes two baffles, which are symmetrically arranged at both ends of the through hole in the fixing plate of the mating assembly and are fixedly connected to the side of the fixing plate in the mating assembly.

[0016] As a further technical solution, the baffle is in a vertical state.

[0017] The beneficial effects of one or more of the above technical solutions:

[0018] (1) According to the pairing component set in this embodiment, a certain number of battery cells can be temporarily stored so that when a defective battery cell appears during the battery cell injection process, the corresponding number of battery cells can be obtained from the pairing component. This allows the battery cell group at the battery cell injection starting point to be replenished quickly and completely, avoiding the problem that the transport robot needs to transport the battery cell twice when a defective battery cell appears and after the defective battery cell appears. This improves the efficiency of the battery cell injection process.

[0019] (2) In this embodiment, the two motion guide rails, two mobile platform bases and drive components can drive the pairing components to move back and forth along the motion guide rails. At the same time, the lifting cylinder can lift and lower a single pairing component, thereby ensuring that the pairing components can operate between the standby position and the feeding position. This allows the corresponding number of battery cells to be provided when a defective battery cell appears, to be used to replenish the battery cell group at the starting point of battery cell injection. At the same time, when no defective battery cell appears, the pairing components can be moved to the standby position, which can avoid collisions with other devices and effectively protect the battery cells on the pairing components. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. For ease of understanding, the proportions between the various structural parts have been adjusted. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation of this application.

[0021] Figure 1 This is an overall structural diagram of a battery cell supply device for battery cell liquid injection according to the present invention.

[0022] Figure 2 This is a diagram showing the operating status of a single paired component in a battery cell supply device for battery cell liquid injection according to the present invention.

[0023] Among them, 1. base, 2. motion guide rail, 3. mobile platform base, 4. lifting cylinder, 5. support plate, 6. matching block, 7. lifting shaft, 8. fixing plate, 9. limit block, 10. servo motor, 11. module lead screw, 12. tank chain cover, 13. tank chain, 14. baffle, 15. battery cell. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-2 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0025] Example 1

[0026] Reference Figure 1-2 A battery cell supply device for injecting electrolyte into battery cells includes a base 1, two motion guide rails 2, two moving platform bases 3, a lifting cylinder 4, a drive assembly, and a pairing assembly.

[0027] Specifically, the bottom ends of the two motion guide rails 2 are set on the upper surface of the base 1 by bolts or welding, and the two motion guide rails 2 are parallel to each other. At the same time, a gap is left between the two motion guide rails 2 for fixing the two motion guide rails 2 to the lifting cylinder 4 and the two moving platform bases 3.

[0028] The lifting cylinder 4 is set in the gap between the two moving guide rails 2 and fits against the two moving guide rails 2; while the two moving platform bases 3 are set on both sides of the lifting cylinder 4, and the sides of the two moving platform bases 3 are fixedly connected to the sides of the lifting cylinder 4 by bolts, so that the two moving platform bases 3 and the lifting cylinder 4 can operate simultaneously.

[0029] Slider blocks are provided on the bottom surfaces of the two mobile platform bases 3, and these sliders can be nested inside the motion guide rails 2; therefore, the two mobile platform bases 3 can be connected to the two motion guide rails 2 respectively through nesting. With this arrangement, the two mobile platform bases 3 and the lifting cylinder 4 can move simultaneously along the motion guide rails 2.

[0030] In this embodiment, the drive assembly includes a servo motor 10 and a module lead screw 11.

[0031] Specifically, the servo motor 10 is fixed to the upper surface of the base 1 by bolts and is located at the end of the motion guide rail 2. The servo motor 10 is also aligned with one of the two moving platform bases 3. In this embodiment, the module lead screw 11 includes a main body and a moving block. One end of the module lead screw 11 main body is fixedly connected to the servo motor 10 via a coupling (not shown in the figure). The moving block of the module lead screw 11 is fixedly connected to one of the two moving platform bases 3, ensuring that the module lead screw 11 and the motion guide rail 2 are parallel to each other.

[0032] With the above configuration, the servo motor 10 drives the reciprocating motion of the moving block on the drive module screw 11, thereby driving the movement of a single moving platform base 3; and based on the fixed connection between the two moving platform bases 3 and the lifting cylinder 4, and the fact that the two moving platform bases 3 are respectively nested on the two motion guide rails 2, the two moving platform bases 3 and the lifting cylinder 4 can move linearly in the horizontal direction along the motion guide rails 2.

[0033] In this embodiment, the internal structure and connection method of each pairing component are the same, and the connection method with the lifting cylinder 4 is also the same; the pairing component includes a rectangular support plate 5 and two pairing blocks 6.

[0034] Specifically, in this embodiment, the lifting cylinder 4 includes a lifting shaft assembly, and each lifting shaft assembly includes two lifting shafts 7; the lower surfaces of both ends of the rectangular support plate 5 are fixedly connected to the two lifting shafts 7 in the lifting shaft assembly by welding.

[0035] The mating blocks 6 are block-shaped structures with grooves, symmetrically arranged at both ends of the upper surface of the support plate 5, with the grooves on the mating blocks 6 in a relative position, thereby fixing the battery cell. The support plate 5 remains horizontal at all times, facilitating the placement and removal of the battery cell.

[0036] Meanwhile, the pairing assembly also includes a rectangular fixing plate 8 and two limiting blocks 9.

[0037] Specifically, the fixing plate 8 is bolted to the upper surface of the lifting cylinder 4, thus securing the two together. Simultaneously, through holes are provided at both ends of the rectangular fixing plate 8, allowing the two lifting shafts 7 in the lifting shaft assembly to pass through these holes. Two limiting blocks 9 are positioned on the upper surface of the through holes at both ends of the fixing plate 8 and are bolted to it, while also being nested within the lifting shafts 7. The fixing plate 8 and limiting blocks 9 ensure the stability of the lifting shafts 7 during vertical lifting, thus guaranteeing the stability of the battery cell.

[0038] Reference Figure 1-2 The battery supply device also includes a tank track cover 12 and a tank track 13. Specifically, the tank track cover 12 is a hollow box structure that serves to provide support and prevent dust accumulation. The sides of the tank track cover 12 are fixed to the base 1 by bolts or welding, and the tank track cover 12 is parallel to the motion guide rail 2. One end of the tank track 13 extends from the opening in the tank track cover 12 (where there is no bottom) into the tank track cover 12, and the other end of the tank track 13 is fixedly connected to the bottom surface of another moving platform base 3 by bolts.

[0039] With the above settings, as the mobile platform base 3 moves on the motion guide rail 2, the mobile platform base 3 will drive the tank chain 13 to move together; at the same time, it can limit the movement distance of the mobile platform base 3 on the motion guide rail 2, and play a certain protective role.

[0040] Reference Figure 1-2 The battery cell supply device also includes two rectangular baffles 14.

[0041] Specifically, two baffles 14 are symmetrically arranged at both ends of the through holes in the fixing plate 8 of the mating assembly, and are fixedly connected to the sides of the fixing plate 8 in at least four sets of mating assemblies by bolts or welding, while ensuring that the baffles 14 are in a vertical state.

[0042] In this embodiment, four sets of pairing components are provided, each equipped with a lifting cylinder 4, ensuring that each set of pairing components can be lifted and lowered independently, thereby facilitating the clamping of the battery cells. The number of pairing components can be adjusted adaptively; this embodiment is for illustration purposes, using four battery cells as a group during the battery cell electrolyte filling process.

[0043] The fixed connection between the baffle 14 and the fixing plate 8 in each paired component ensures that the paired components fit together and improves the overall stability.

[0044] Device usage steps:

[0045] (Among them, with Figure 1 For example, when the mobile platform base 3 is in standby position on the side of the motion guide rail 2 near the servo motor 10, and none of the paired components have risen.

[0046] Before the cells are filled with electrolyte, a cell 15 is fixed between the two mating blocks 6 in each mating assembly.

[0047] During the electrolyte injection process, when a defective cell is found, the robot will remove the defective cell using a robotic arm and discard it.

[0048] At this time, the servo motor 10 drives the module lead screw 11 to rotate, thereby driving the two moving platform bases 3 and the lifting cylinder 4 to move on the motion guide rail 2 and reach the other end of the motion guide rail; the lifting cylinder 4 drives the two lifting shafts 7 in the lifting shaft group to rise, thereby raising the battery cells 15 on the two paired blocks 6 to the feeding position; at this time, the robot transports the battery cells 15 on the two paired blocks 6 to the starting point of battery cell liquid injection through the robotic arm; then the lifting cylinder 4 controls the two lifting shafts 7 in the current lifting shaft group to descend.

[0049] By repeating the above process, the number of cells in the cell group at the starting point of cell injection is replenished.

[0050] Afterwards, the servo motor 10 drives the module lead screw 11 to rotate again, thereby driving the two moving platform bases 3 and the lifting cylinder 4 to move on the motion guide rail 2 and return to the standby position.

[0051] This completes the entire operation of the battery cell supply device. Simultaneously, before the battery cell electrolyte injection process, the battery cells 15 on the two mating blocks 6 can also be placed according to the operating steps of the aforementioned device, in conjunction with the robot.

[0052] Meanwhile, the other mobile platform base 3 in the battery cell supply device can drive the tank chain 13 to move as it moves on the motion guide rail 2. As the mobile platform base 3 moves, the tank chain 13 will slowly enter the interior through the opening of the tank chain cover 12. When the mobile platform base 3 reaches the other end of the motion guide rail 2, the tank chain 13 inside the tank chain cover 12 will press against the inner surface of the other end, thereby limiting the range of movement of the mobile platform base 3 on the motion guide rail 2, thus further ensuring the safe and stable operation of the mobile platform base 3.

[0053] Meanwhile, the tank chain cover 12 and the module lead screw 11 are located on the outside of the two motion guide rails 2, that is, the two motion guide rails 2 are located between the tank chain cover 12 and the module lead screw 11; and by connecting the tank chain cover 12 and the module lead screw 11 to a mobile platform base 3 respectively, the two mobile platform bases 3 can be further fixed, thereby improving the stability of the mobile platform bases 3 during movement.

[0054] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A battery cell supply device for electrolyte injection into battery cells, characterized in that, The device includes a base, two motion guide rails, two mobile platform bases, a lifting cylinder, a drive assembly, and a mating assembly. The two motion guide rails are arranged parallel to each other on the base, with a gap between them. The lifting cylinder is disposed in the gap. The two mobile platform bases are disposed on both sides of the lifting cylinder and are fixedly connected to it. The two mobile platforms are nested on the two motion guide rails. The drive assembly is nested and connected to one of the mobile platform bases. The mating assembly is disposed above the lifting cylinder and is fixedly connected to it. The mating assembly is used to place the battery cells.

2. The battery cell supply device for electrolyte injection as described in claim 1, characterized in that, The pairing assembly includes a support plate and two pairing blocks. The lifting cylinder includes a lifting shaft assembly, each of which includes two lifting shafts. The lower surfaces at both ends of the support plate are fixedly connected to the two lifting shafts in the lifting shaft assembly. The two pairing blocks are symmetrically arranged at both ends of the upper surface of the support plate.

3. A battery cell supply device for electrolyte injection as described in claim 2, characterized in that, The support plate is in a horizontal position.

4. A battery cell supply device for electrolyte injection as described in claim 2, characterized in that, The pairing assembly also includes a fixing plate and two limiting blocks; the fixing plate is fixedly connected to the upper surface of the lifting cylinder; the fixing plate has through holes at both ends, and the two lifting shafts in the lifting shaft assembly pass through the through holes at both ends of the fixing plate respectively; the two limiting blocks are set on the upper surface of the through holes at both ends of the fixing plate and are nested on the lifting shafts.

5. A battery cell supply device for electrolyte injection as described in claim 1, characterized in that, The drive assembly includes a servo motor and a module lead screw. The servo motor is mounted on the base. The module lead screw is fixedly connected to the servo motor. One of the two mobile platform bases is fixedly connected to the module lead screw.

6. A battery cell supply device for electrolyte injection as described in claim 5, characterized in that, The module lead screw and the motion guide rail are parallel to each other.

7. A battery cell supply device for electrolyte injection as described in claim 1, characterized in that, The battery cell supply device also includes a tank chain cover and a tank chain. The tank chain cover is mounted on a base, and one end of the tank chain is located inside the tank chain cover, while the other end is fixedly connected to another mobile platform base.

8. A battery cell supply device for electrolyte injection as described in claim 7, characterized in that, The tank track cover and the motion guide rail are parallel to each other.

9. A battery cell supply device for electrolyte injection as described in claim 1, characterized in that, The battery cell supply device also includes two baffles, which are symmetrically arranged at both ends of the through hole in the fixing plate of the mating assembly and are fixedly connected to the side of the fixing plate in the mating assembly.

10. A battery cell supply device for battery cell electrolyte injection as described in claim 9, characterized in that, The baffle is in a vertical position.

Images