A lithium battery pack assembly operation device

By combining the limiting docking component and the sliding spraying component, the problems of small coating area and low efficiency in lithium battery pack assembly are solved, and efficient and firm connection of the battery pack is achieved.

CN119812496BActive Publication Date: 2025-10-28ZHANGJIAGANG MUFENG ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202510055361.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2025-10-28
Estimated Expiration
2045-01-14

AI Technical Summary

Technical Problem

The small adhesive application area in the current lithium battery pack assembly process results in weak bonding and low assembly efficiency.

Method used

By employing a limiting docking assembly and a sliding spraying assembly, and driving the fixing frame to slide via a hydraulic rod, the battery pack is automatically sprayed and docked, ensuring that the adhesive is evenly applied and the battery pack is completely bonded during the sliding process.

Benefits of technology

It improves the assembly efficiency and bonding strength of lithium battery packs, enabling simultaneous gluing and docking of multiple battery packs, resulting in a more robust adhesive connection.

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Abstract

This invention discloses a lithium battery pack assembly operation device in the field of lithium battery pack technology, including a base plate, a slide rail fixedly connected inside the base plate, a fixed frame slidably connected on the slide rail, hydraulic rods fixedly connected to the front and rear ends of the base plate, and several glue storage tanks fixedly connected to the upper end of the base plate. This invention employs a limiting docking component. During the sliding process, the fixed frame automatically sprays glue onto the sides of the battery pack through the limiting docking component. Furthermore, as the fixed frame slides, the limiting docking component moves away from the battery pack while applying glue, ensuring that the battery pack is completely bonded together after the glue is applied. This allows for simultaneous glue application to multiple battery packs, and after glue application, the battery packs are completely bonded together. After a period of time for the glue to solidify, the battery pack assembly is completed, effectively improving the battery pack assembly efficiency.
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Description

Technical Field

[0001] This invention relates to the field of lithium battery pack technology, specifically to a lithium battery pack assembly operation device. Background Technology

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and a non-aqueous electrolyte solution. A lithium battery pack is a series of lithium batteries connected in series to increase the battery's output voltage and capacitance.

[0003] When assembling a lithium battery pack, the first step is to apply adhesive to the surface of the pack. Then, multiple battery packs are sequentially and tightly bonded together. After the adhesive solidifies, the packs are secured together. Finally, the wiring and packaging are attached to complete the assembly. Currently, most lithium battery pack assembly is done by machine. When applying adhesive to the battery pack surface, the machine applies it to a single, fixed area, resulting in a small adhesive area and weak adhesion. Furthermore, multiple battery packs must be applied with adhesive sequentially before assembly can proceed, making the process inefficient.

[0004] Based on this, the present invention designs a lithium battery pack assembly operation device to solve the problem of small coating area and low assembly efficiency in the above-mentioned lithium battery pack assembly process. Summary of the Invention

[0005] The purpose of this invention is to provide a lithium battery pack assembly operation device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lithium battery pack assembly operation device, comprising a base plate, a slide rail fixedly connected inside the base plate, a fixed frame slidably connected on the slide rail, hydraulic rods fixedly connected to the front and rear ends of the base plate, a plurality of glue storage tanks fixedly connected to the upper end of the base plate, a connecting pipe fixedly connected to the discharge end of the glue storage tanks, a limiting docking component provided on the fixed frame, the limiting docking component being used to limit the displacement of the battery pack inside the fixed frame, and a sliding spraying component provided on the fixed frame, the sliding spraying component being used to spray glue onto the surface of the battery pack during the sliding process of the fixed frame.

[0007] As a further embodiment of the present invention, the limiting docking assembly includes a support plate, a support plate is fixedly connected to the side wall of the fixed frame, an alignment shaft is fixedly connected to the top of the support plate, an alignment block is slidably sleeved on the top of the alignment shaft, a first spring for resetting the alignment block is sleeved on the alignment shaft, a connecting groove is provided on the fixed frame, and the connecting groove and the support plate are misaligned on both sides of the fixed frame.

[0008] As a further embodiment of the present invention, the sliding spraying assembly includes a rack rod, which is fixedly mounted on the top of the base plate. A positioning plate is slidably connected to the bottom end of the rack rod, and a sliding shaft is fixedly connected to the top end of the positioning plate. A connecting plate is slidably connected to the sliding shaft. A threaded rod is fixedly connected to one end of the positioning plate, and a transmission gear that meshes with the rack rod is helically connected to the threaded rod. Limiting plates that restrict the sliding of the transmission gear are provided on both sides of the rack rod. A glue applicator is fixedly connected to the top end of the connecting plate, and the input end of the glue applicator is connected to the output end of the connecting pipe. A sliding plate is slidably connected to one end of the connecting plate. A side plate is fixedly connected to the side wall of the fixing frame, and a connecting shaft is fixedly connected to the side plate. The sliding plate is slidably sleeved on the connecting shaft. A conical plate is fixedly connected to the top end of the positioning plate.

[0009] As a further embodiment of the present invention, the sidewalls of the conical plates are all smooth walls, and the sidewalls of the sliding plates are provided with inclined grooves that are horizontal to the sidewalls of the conical plates.

[0010] As a further embodiment of the present invention, the bottom end of the hydraulic rod is fixedly connected to a second base, the second base is fixedly disposed above the base plate, the output end of the hydraulic rod is fixedly connected to a second fixing plate, the output shaft of the hydraulic rod is fixedly connected to a first base, the top end of the first base is fixedly connected to a fixing cylinder, the output end of the fixing cylinder is fixedly connected to a first fixing plate, and a reset spring for resetting the fixing frame is sleeved on the slide rail.

[0011] As a further aspect of the present invention, the outer wall of the fixing frame is provided with an antistatic coating.

[0012] As a further embodiment of the present invention, the outer walls of the slide rails are all smooth walls, and the fixing frame can be completely fitted with the outer walls of the slide rails.

[0013] As a further embodiment of the present invention, a silicone pad is fixedly connected to one end of the first fixing plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This invention employs a limiting docking assembly to place the battery packs to be assembled into each fixing frame. A hydraulic rod is activated to push the fixing frame to slide. During this sliding process, the limiting docking assembly automatically sprays adhesive onto the sides of the battery packs. As the fixing frame slides, the limiting docking assembly moves away from the battery packs while applying adhesive, ensuring that the battery packs are completely bonded together after the adhesive is applied. This allows for simultaneous adhesive application to multiple battery packs, ensuring they are completely bonded together after application. After a period of time for the adhesive to solidify, the battery pack assembly is complete. This significantly improves assembly efficiency, and the limiting docking assembly controls the path of the sprayed adhesive, resulting in a more secure connection between the battery packs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 A schematic diagram of a hydraulic rod and a fixed cylinder structure;

[0018] Figure 3 This is a schematic diagram of a partial structure of the mounting bracket and slide rail;

[0019] Figure 4 This is a schematic diagram of the limiting docking component structure;

[0020] Figure 5 This is a schematic diagram of the fixed frame structure;

[0021] Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle;

[0022] Figure 7 This is a schematic diagram of the rear structure of the fixing frame.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Base plate; 2. Connecting pipe; 3. Glue storage tank; 4. Hydraulic rod; 5. Fixed cylinder; 6. First base; 7. Second base; 8. Second fixing plate; 9. First fixing plate; 10. Fixing frame; 11. Slide rail; 12. Return spring; 13. Rack; 14. Side plate; 15. Connecting shaft; 16. Sliding plate; 17. Transmission gear; 18. Conical plate; 19. Glue applicator head; 20. Sliding shaft; 21. Connecting plate; 22. Threaded rod; 23. Positioning plate; 24. Alignment block; 25. Connecting groove; 26. Alignment shaft; 27. First spring; 28. Support plate. Detailed Implementation

[0025] Please see Figures 1-7 This invention provides a technical solution: a lithium battery pack assembly operation device, including a base plate 1, a slide rail 11 fixedly connected inside the base plate 1, a fixed frame 10 slidably connected on the slide rail 11, hydraulic rods 4 fixedly connected to the front and rear ends of the base plate 1, a plurality of glue storage tanks 3 fixedly connected to the upper end of the base plate 1, a connecting pipe 2 fixedly connected to the discharge end of the glue storage tanks 3, a limiting docking component provided on the fixed frame 10, the limiting docking component being used to limit the displacement of the battery pack inside the fixed frame 10, and a sliding spraying component provided on the fixed frame 10, the sliding spraying component being used to spray glue onto the surface of the battery pack during the sliding process of the fixed frame 10;

[0026] When the above solution is put into practical use, the battery packs to be assembled are placed inside each fixing frame 10. The hydraulic rod 4 is activated to push the fixing frame 10 to slide. During the sliding process, the fixing frame 10 automatically sprays adhesive onto the sides of the battery pack through the limiting docking component. As the fixing frame 10 slides, the limiting docking component moves away from the battery pack while applying adhesive, so that after the adhesive is applied, the battery pack is completely bonded together. The purpose of this is to apply adhesive to multiple battery packs at the same time, and after the adhesive is applied, the battery packs are completely bonded together. After standing for a period of time to allow the adhesive to solidify, the assembly of the battery pack is completed, which can effectively improve the assembly efficiency of the battery pack. In addition, the limiting docking component can control the path of the sprayed adhesive, making the battery packs more firmly connected by the adhesive.

[0027] As a further embodiment of the present invention, the limiting docking assembly includes a support plate 28, the support plate 28 is fixedly connected to the side wall of the fixing frame 10, the top end of the support plate 28 is fixedly connected to an alignment shaft 26, the top end of the alignment shaft 26 is slidably sleeved with an alignment block 24, a first spring 27 for resetting the alignment block 24 is sleeved on the alignment shaft 26, a connecting groove 25 is provided on the fixing frame 10, the connecting groove 25 and the support plate 28 are misaligned on both sides of the fixing frame 10, the bottom end of the hydraulic rod 4 is fixedly connected to a second base 7, the second base 7 is fixedly set above the base plate 1, the output end of the hydraulic rod 4 is fixedly connected to a second fixing plate 8, the output shaft of the hydraulic rod 4 is fixedly connected to a first base 6, the top end of the first base 6 is fixedly connected to a fixing cylinder 5, the output end of the fixing cylinder 5 is fixedly connected to a first fixing plate 9, and a reset spring 12 for resetting the fixing frame 10 is sleeved on the slide rail 11.

[0028] When the above solution is put into actual use, when the hydraulic rod 4 pushes the fixing frame 10 to slide and connect the battery packs together, the hydraulic rod 4 is first activated to drive the fixing frame 10 to compress the return spring 12 and slide through the second fixing plate 8. When the adjacent fixing frames 10 gradually come into contact, the alignment block 24 on the fixing frame 10 will contact the connecting groove 25 on the adjacent fixing frame 10. With continuous compression, the alignment block 24 gradually slides into the connecting groove 25, causing the first spring 27 to be compressed and slide downward. When the alignment block 24 is completely inside the connecting groove 25, that is, the adjacent fixing frames 10 are completely fitted together, and the alignment block 24 no longer restricts the battery pack from both sides, at this time the fixing cylinder 5 is activated to drive the first fixing plate 9 to slide. The first fixing plate 9 directly contacts the side wall of the battery pack, squeezing the battery pack to slide on the fixing frame 10, so that multiple battery packs come into contact and connect together.

[0029] As a further embodiment of the present invention, the sliding spraying assembly includes a rack 13, which is fixedly mounted on the top of the base plate 1. A positioning plate 23 is slidably connected to the bottom end of the rack 13. A sliding shaft 20 is fixedly connected to the top end of the positioning plate 23. A connecting plate 21 is slidably connected to the sliding shaft 20. A threaded rod 22 is fixedly connected to one end of the positioning plate 23. A transmission gear 17 that meshes with the rack 13 is helically connected to the threaded rod 22. Limiting plates that restrict the sliding of the transmission gear 17 are provided on both sides of the rack 13. A glue applicator 19 is fixedly connected to the top end of the connecting plate 21. The input end of the glue applicator 19 is connected to the output end of the connecting pipe 2. A sliding plate 16 is slidably connected to one end of the connecting plate 21. A side plate 14 is fixedly connected to the side wall of the fixing frame 10. A connecting shaft 15 is fixedly connected to the side plate 14. The sliding plate 16 is slidably sleeved on the connecting shaft 15. A conical plate 18 is fixedly connected to the top end of the positioning plate 23.

[0030] When the above scheme is put into actual use, when the fixing frame 10 slides on the slide rail 11, the glue in the glue storage tank 3 enters the glue application head 19 through the connecting pipe 2, and is then sprayed onto the side wall of the side plate 14 through the output end of the glue application head 19. The positioning plate 23 slides synchronously along the rack 13, so that the transmission gear 17 meshes with the rack 13 and rotates. The rotation of the transmission gear 17 drives the threaded rod 22 to slide, so that the positioning plate 23 slides on the rack 13 in both longitudinal and transverse directions. The connecting plate 21 slides synchronously with the positioning plate 23. Due to the restriction of the cone plate 18, the connecting plate 21 will slide along the cone plate during the sliding process. As the height of the connecting plate 21 changes, the sliding plate 16 moves synchronously up and down along the connecting shaft 15, causing the height of the glue applicator 19 at the top of the connecting plate 21 to also change. This allows more of the glue sprayed by the glue applicator 19 to adhere to the battery pack. As the transmission gear 17 and rack 13 continue to mesh and rotate, the positioning plate 23 gradually slides to one side of the fixing frame 10. At this point, the glue applicator 19 has completed the spraying process on the battery pack, and the adjacent fixing frames 10 can also fit together, thus completing the spraying and docking of the battery pack and the initial assembly of the battery pack.

[0031] As a further embodiment of the present invention, the side walls of the cone plate 18 are all smooth walls, and the side wall of the sliding plate 16 is provided with an inclined groove that is horizontal to the side wall of the cone plate 18.

[0032] When the above solution is put into practical use, the friction between the sliding plate 16 and the cone plate 18 is smaller when the sliding plate 16 slides along the outer wall of the cone plate 18, making it easier to slide.

[0033] As a further embodiment of the present invention, an antistatic coating is provided on the outer wall of the fixing frame 10;

[0034] When the above solution is put into actual use, it is easier to generate static electricity under the pushing force of compression, so as to avoid affecting the battery pack. The anti-static coating ensures that the fixing frame 10 will not generate static electricity during movement.

[0035] As a further embodiment of the present invention, the outer walls of the slide rail 11 are all smooth walls, and the fixing frame 10 can be completely fitted with the outer wall of the slide rail 11.

[0036] When the above solution is put into actual use, the fixed frame 10, which is completely fitted together, is more stable when sliding on the slide rail 11, and will not cause shaking in other directions.

[0037] As a further embodiment of the present invention, a silicone pad is fixedly connected to one end of the first fixing plate 9.

[0038] When the above solution is put into actual use, the first fixing plate 9 is in direct contact with the side of the battery pack. The silicone pad acts as a buffer to avoid excessive pressure being applied directly to the battery pack and affecting it.

[0039] Working principle: The battery packs to be assembled are placed inside each fixing frame 10. The hydraulic rod 4 is activated to push the fixing frame 10 to slide. When the fixing frame 10 slides on the slide rail 11, the glue in the glue storage tank 3 enters the glue application head 19 through the connecting pipe 2, and is then sprayed onto the side wall of the side plate 14 through the output end of the glue application head 19. The positioning plate 23 slides synchronously along the rack 13, so that the transmission gear 17 meshes with the rack 13 and rotates. The rotation of the transmission gear 17 drives the threaded rod 22 to slide, so that the positioning plate 23 slides along the rack 13 longitudinally and laterally. The connecting plate 21 slides in two directions, and the positioning plate 23 slides synchronously. Due to the limitation of the cone plate 18, the connecting plate 21 will change up and down along the height of the cone plate 18 during the sliding process. The sliding of the connecting plate 21 drives the sliding plate 16 to slide up and down synchronously along the connecting shaft 15, so that the height of the glue applicator 19 at the top of the connecting plate 21 also changes. In this way, the glue sprayed by the glue applicator 19 can adhere more to the surface of the battery pack. As the transmission gear 17 and the rack 13 continue to mesh and rotate, the positioning plate 23 gradually slides to one side of the fixing frame 10.

[0040] When the hydraulic rod 4 pushes the fixing frame 10 to slide and connect the battery packs together, the hydraulic rod 4 is first activated to drive the fixing frame 10 to compress the return spring 12 and slide through the second fixing plate 8. When the adjacent fixing frames 10 gradually come into contact, the alignment block 24 on the fixing frame 10 will contact the connecting groove 25 on the adjacent fixing frame 10. With continuous compression, the alignment block 24 gradually slides into the connecting groove 25, causing the first spring 27 to be compressed and slide downward. When the alignment block 24 is completely inside the connecting groove 25, that is, the adjacent fixing frames 10 are completely fitted together, and the alignment block 24 no longer restricts the battery pack from both sides, the fixing cylinder 5 is activated to drive the first fixing plate 9 to slide. The first fixing plate 9 directly contacts the side wall of the battery pack, squeezing the battery pack to slide on the fixing frame 10, so that multiple battery packs come into contact and connect together.

Claims

1. A lithium battery pack assembly operation device, comprising a base plate (1), wherein a slide rail (11) is fixedly connected inside the base plate (1), a fixed frame (10) is slidably connected on the slide rail (11), hydraulic rods (4) are fixedly connected to the front and rear ends of the base plate (1), and a plurality of glue storage tanks (3) are fixedly connected to the upper end of the base plate (1), wherein a connecting pipe (2) is fixedly connected to the discharge end of the glue storage tanks (3), characterized in that: The fixing frame (10) is provided with a limiting docking component, which is used to limit the displacement of the battery pack inside the fixing frame (10). The fixing frame (10) is provided with a sliding spraying component, which is used to spray adhesive on the surface of the battery pack during the sliding process of the fixing frame (10). The limiting docking assembly includes a support plate (28), the support plate (28) is fixedly connected to the side wall of the fixed frame (10), the top of the support plate (28) is fixedly connected to the alignment shaft (26), the top of the alignment shaft (26) is slidably sleeved with an alignment block (24), the alignment shaft (26) is sleeved with a first spring (27) for resetting the alignment block (24), the fixed frame (10) is provided with a connecting groove (25), and the connecting groove (25) and the support plate (28) are misaligned on both sides of the fixed frame (10); The sliding spraying assembly includes a rack (13), which is fixedly mounted on the top of the base plate (1). A positioning plate (23) is slidably connected to the bottom end of the rack (13). A sliding shaft (20) is fixedly connected to the top end of the positioning plate (23). A connecting plate (21) is slidably connected to the sliding shaft (20). A threaded rod (22) is fixedly connected to one end of the positioning plate (23). A transmission gear (17) that meshes with the rack (13) is helically connected to the threaded rod (22). The rack (13) has two sides with... A limiting plate restricts the sliding of the transmission gear (17). A glue applicator (19) is fixedly connected to the top of the connecting plate (21). The input end of the glue applicator (19) is connected to the output end of the connecting pipe (2). A sliding plate (16) is slidably connected to one end of the connecting plate (21). A side plate (14) is fixedly connected to the side wall of the fixing frame (10). A connecting shaft (15) is fixedly connected to the side plate (14). The sliding plate (16) is slidably sleeved on the connecting shaft (15). A cone plate (18) is fixedly connected to the top of the positioning plate (23).

2. The lithium battery pack assembly equipment according to claim 1, characterized in that: The side walls of the cone plate (18) are all smooth walls, and the side wall of the sliding plate (16) is provided with an inclined groove that is horizontal to the side wall of the cone plate (18).

3. The lithium battery pack assembly equipment according to claim 1, characterized in that: The bottom end of the hydraulic rod (4) is fixedly connected to a second base (7), the second base (7) is fixedly set above the base plate (1), the output end of the hydraulic rod (4) is fixedly connected to a second fixing plate (8), the output shaft of the hydraulic rod (4) is fixedly connected to a first base (6), the top end of the first base (6) is fixedly connected to a fixing cylinder (5), the output end of the fixing cylinder (5) is fixedly connected to a first fixing plate (9), and a reset spring (12) for resetting the fixing frame (10) is sleeved on the slide rail (11).

4. The lithium battery pack assembly equipment according to claim 1, characterized in that: The outer wall of the fixing frame (10) is provided with an antistatic coating.

5. The lithium battery pack assembly equipment according to claim 1, characterized in that: The outer walls of the slide rail (11) are all smooth walls, and the fixing frame (10) can fit completely against the outer wall of the slide rail (11).

6. The lithium battery pack assembly equipment according to claim 3, characterized in that: A silicone pad is fixedly connected to one end of the first fixing plate (9).

Citation Information

Patent Citations

  • Battery box gluing positioning tool

    CN117123421A