Lithium battery liquid injection device capable of realizing automatic clamping

Abstract

The invention provides an automatic clamping lithium battery liquid injection device which comprises a bottom plate, side plates fixedly connected to two sides of the top of the bottom plate, an operation table fixedly connected to the top of the bottom plate, a liquid injection box fixedly connected to the tops of the side plates, a mounting plate fixedly connected to the outer surface of the liquid injection box, and a liquid separation box fixedly connected to the top of the liquid injection box. According to the invention, a plurality of lithium batteries can be arranged in groups and fixed in groups before liquid injection, the edges of the batteries can be tidied by the structure, the time for arranging the batteries is saved, a large amount of work can be carried out during processing when multiple batches of lithium batteries are processed, the processing efficiency is improved, and meanwhile, through a cut-off structure of a liquid injection port, the production efficiency is improved, and the production cost is reduced. And the residual liquid at the liquid injection port is erased and collected, so that the liquid at the liquid injection port is prevented from falling down, and the cleanliness and the quality of the lithium battery port are ensured.

Description

Technical Field

[0001] The present invention relates to the field of battery packs, and particularly to a lithium battery liquid injection device capable of automatically clamping. Background Art

[0002] Liquid injection is a key process in the manufacturing process of lithium-ion batteries. The quality of the liquid injection effect not only affects the battery performance but also restricts the production efficiency. In the limited internal cavity of the battery, through a certain process method, the electrolyte is injected into the cavity. Part of the electrolyte infiltrates into the core, and part occupies the unoccupied space. The total amount of injected electrolyte is the liquid injection volume. The more electrolyte infiltrates into the core, the better the infiltration effect. During the process of lithium battery liquid injection, due to considering the liquid injection efficiency, multiple groups of lithium batteries need to be arranged for liquid injection. During the liquid injection process of multiple groups of batteries, a large number of operations are more troublesome.

[0003] Regarding the technical problems existing in the above-mentioned lithium battery liquid injection device capable of automatically clamping, through retrieval, a patent No. CN201910603035.7, an adjustable lithium battery liquid injection device, is found, including: a support frame and a liquid injection mechanism for injecting electrolyte, wherein: the liquid injection mechanism includes a slide bar and a liquid injection head slidably mounted above the slide bar; the support frame includes a base and a first side frame and a second side frame fixed on the base; the base is located below the liquid injection head, and the distance between the base and the liquid injection head is adjustable. The base is provided with a support seat elastically connected thereto and a first clamping plate and a second clamping plate oppositely arranged on both sides of the support seat; compression springs abutting against them are respectively provided on one side of the first clamping plate and the second clamping plate away from the support seat; the first side frame and the second side frame are oppositely arranged along the length direction of the slide bar and form a support for the slide bar. The present invention can meet the liquid injection requirements of different models of batteries and has good versatility.

[0004] For this lithium battery liquid injection device, since a large number of lithium batteries need to be processed in the process of flow injection operation, and manual arrangement is required during the processing of lithium batteries. When injecting electrolyte into the lithium battery, the cavity opening also needs to be aligned with the injection port. In this way, a large number of operations are required in the early stage of liquid injection, reducing the efficiency of the liquid injection operation. At the same time, after the electrolyte injection process, when the electrolyte injection stops, the liquid outlet is prone to residual liquid, which drips on the battery port and has a certain impact on the lithium battery port, and the outer surface of the lithium battery is easily contaminated. Summary of the Invention

[0005] The purpose of the present invention is to provide a lithium battery liquid injection device capable of automatically clamping.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A lithium battery liquid injection device capable of automatic clamping includes a bottom plate. On both sides of the top of the bottom plate, there are fixed side plates. On the top of the bottom plate, there is a fixed operating table. On the top of the side plates, there is a fixed liquid injection tank. On the outer surface of the liquid injection tank, there is a fixed mounting plate. On the top of the liquid injection tank, there is a fixed liquid distribution tank.

[0007] As a further scheme of the present invention: The operating table includes a fixed plate, a limiting plate, and a shielding plate. On one side of the operating table, there is a movably connected fixed plate. On one side of the fixed plate, there is a movably connected limiting plate. On the outer surface of the fixed plate, there is a fixed shielding plate.

[0008] As a further scheme of the present invention: The mounting plate includes a first motor, a gear, an adjusting rod, a spring, a roller, and a one-way chain. On one side of the mounting plate, there is a fixedly installed first motor. The output end of the first motor is fixedly connected to a gear. On one side of the gear, there is a fixedly connected adjusting rod. On the back of the adjusting rod, there is a fixedly connected spring. At the bottom of the adjusting rod, there is a movably connected roller. On the back of the roller, there is a fixedly connected one-way chain.

[0009] As a further scheme of the present invention: The fixed plate is rotationally connected to the operating table through a rotating block. On the top of the fixed plate, there is a chute. The limiting plate is movably arranged from right to left through the chute of the fixed plate.

[0010] As a further scheme of the present invention: There are two gears, and the two gears are meshed with each other. The spring is located below the gear.

[0011] As a further scheme of the present invention: The roller is connected to the adjusting rod through a rotating shaft. The one-way chain is wound around the outer surface of the roller. On one side of the one-way chain, there is a groove.

[0012] As a further scheme of the present invention: The liquid injection tank includes a liquid injection head, a cleaning box, a scraping blade, an elastic sheet, a second motor, a fixed disk, a turntable, a scraping bar, and a rotating shaft. At the bottom of the liquid injection tank, there is a fixedly connected liquid injection head. On one side of the bottom of the liquid injection tank, there is a movably connected rotating shaft. On the outer surface of the rotating shaft, there are movably connected scraping blades and a cleaning box. On the top of the cleaning box, there is a fixedly connected scraping bar. On one side of the cleaning box and the scraping blade, there are fixedly connected elastic sheets. On the outer surface of the liquid injection tank, there is a fixed disk. On the top of the fixed disk, there is a fixedly installed second motor. The output end of the second motor is fixedly connected to a turntable.

[0013] As a further scheme of the present invention: The liquid distribution tank includes a liquid injection pipe, an injection cylinder, and a fixed block. On the top of the liquid distribution tank, there is a fixedly connected liquid injection pipe. On the top of the liquid injection pipe, there is a fixedly connected injection cylinder. On the outer surface of the injection cylinder, there is a fixed block.

[0014] As a further solution of the present invention: One end of the scraping blade and the cleaning box are connected by a rotating shaft, and the scraping blade and the cleaning box are rotatably connected to the liquid injection box.

[0015] As a further solution of the present invention: An arc-shaped chute is provided at the bottom of the turntable, a slider is provided at the top of the scraping blade, and the scraping blade is movably arranged at the bottom of the turntable through the slider.

[0016] As a further solution of the present invention: The scraping blade and the cleaning box are foldably arranged, the elastic piece is made of arc-shaped spring steel, the inside of the cleaning box is hollow, a through groove is provided on one side of the cleaning box, and the through groove of the cleaning box is below the scraping blade. Beneficial effects

[0017] 1. Before liquid injection by multiple lithium batteries in the present invention, the lithium batteries can be arranged in groups and fixed in groups. The structure can regularize the edges of the batteries. When processing multiple batches of lithium batteries, the time for arranging the battery groups is saved, and a large amount of work can be carried out during processing, increasing the processing efficiency. At the same time, through the truncation structure of the liquid injection port, the liquid remaining at the liquid injection port is wiped and collected, preventing the liquid on the liquid injection port from dripping, and ensuring the cleanliness and quality of the lithium battery port.

[0018] 2. In the present invention, the rotating block is rotatably connected to the operating table. A chute is provided at the top of the fixing plate. The limiting plate moves from right to left through the chute of the fixing plate. The roller is connected to the adjusting rod through a rotating shaft. A one-way chain is wound around the outer surface of the roller. A groove is provided on one side of the one-way chain. The limiting plate squeezes multiple groups of lithium batteries, and the limiting plate pushes the lithium batteries. The other side of the battery is aligned through the one-way chain, enabling the battery to quickly align with the liquid outlet.

[0019] 3. In the present invention, a slider is provided at the top of the scraping blade, and the scraping blade is movably arranged at the bottom of the turntable through the slider. The inside of the cleaning box is hollow, a through groove is provided on one side of the cleaning box, and the through groove of the cleaning box is below the scraping blade. Through the movement and folding of the scraping blade, the liquid can be collected and processed and collected by the cleaning box. The liquid can be collected in a timely manner after liquid outlet, increasing the effect of ensuring environmental standardization. Description of the drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the lithium battery liquid injection of the present invention.

[0021] Figure 2 It is a schematic diagram of the split structure of the lithium battery liquid injection device of the present invention.

[0022] Figure 3 It is a schematic diagram of the split structure of the operating table of the present invention.

[0023] Figure 4Schematic diagram of the mounting plate structure of the present invention.

[0024] Figure 5 Schematic diagram of the bottom view structure of the liquid injection tank of the present invention.

[0025] Figure 6 Schematic diagram of the split structure of the blade group of the present invention.

[0026] Figure 7 Schematic diagram of the blade structure of the present invention.

[0027] Figure 1-7 In the figure: 1. bottom plate; 2. side plate; 3. operating table; 31. fixing plate; 32. limiting plate; 33. shielding plate; 4. mounting plate; 41. first motor; 42. gear; 43. adjusting rod; 44. spring; 45. roller; 46. one-way chain; 5. liquid injection tank; 51. liquid injection head; 52. cleaning tank; 53. blade; 54. elastic piece; 55. second motor; 56. fixed disk; 57. turntable; 58. scraping strip; 59. rotating shaft; 6. liquid separation tank; 61. injection pipe; 62. syringe; 63. fixing block. Detailed implementation manners

[0028] Next, in combination with the Figure 1 - Figure 7 drawings in the specification of the present invention, the specific technical solutions of the present invention will be clearly and completely described; A lithium battery liquid injection device capable of automatic clamping provided in this embodiment includes a bottom plate 1, side plates 2 are fixedly connected to both sides of the top of the bottom plate 1, an operating table 3 is fixedly connected to the top of the bottom plate 1, a liquid injection tank 5 is fixedly connected to the top of the side plates 2, a mounting plate 4 is fixedly connected to the outer surface of the liquid injection tank 5, and a liquid separation tank 6 is fixedly connected to the top of the liquid injection tank 5.

[0029] After the bottom plate 1 is installed and fixed, the position of the operating table 3 is adjusted, the battery pack is placed on one side of the operating table 3, and is regularized through the mounting plate 4. The liquid injection tank 5 is opened, and the liquid separation tank 6 divides different liquids into paths to inject the battery pack.

[0030] Specifically, the operating table 3 includes a fixing plate 31, a limiting plate 32 and a shielding plate 33. A fixing plate 31 is movably connected to one side of the operating table 3, a limiting plate 32 is movably connected to one side of the fixing plate 31, and a shielding plate 33 is fixedly connected to the outer surface of the fixing plate 31; The mounting plate 4 includes a first motor 41, a gear 42, an adjusting rod 43, a spring 44, a roller 45 and a one-way chain 46. A first motor 41 is fixedly installed on one side of the mounting plate 4, an output end of the first motor 41 is fixedly connected to a gear 42, a gear 42 is fixedly connected to an adjusting rod 43 on one side, a spring 44 is fixedly connected to the back of the adjusting rod 43, a roller 45 is movably connected to the bottom of the adjusting rod 43, and a one-way chain 46 is fixedly connected to the back of the roller 45.

[0031] Pull open the limit plate 32, push the battery panel along the baffle 33 to one side along the fixed plate 31, move the limit plate 32 from the fixed plate 31, the first motor 41 drives the gear 42, the gear 42 drives the adjustment rod 43 to open, stretching the spring 44, the adjustment rod 43 clamps both sides of the battery panel, the roller 45 rotates with the adjustment rod 43, and the left-pushed battery panel is moved and squeezed by the roller 45. The battery panel moves along the groove on the one-way chain 46 and is arranged on the operating table 3.

[0032] Furthermore, the fixed plate 31 is rotatably connected to the operating table 3 through a rotating block, a chute is opened at the top of the fixed plate 31, and the limit plate 32 is arranged to move from right to left through the chute of the fixed plate 31.

[0033] Furthermore, two gears 42 are provided, the two gears 42 are meshed with each other, and the spring 44 is located below the gear 42.

[0034] Furthermore, the roller 45 is connected to the adjustment rod 43 through a rotating shaft, the one-way chain 46 is wound around the outer surface of the roller 45, and a groove is provided on one side of the one-way chain 46.

[0035] Specifically, the liquid injection tank 5 includes a liquid injection head 51, a cleaning tank 52, a scraping blade 53, a spring piece 54, a second motor 55, a fixed disk 56, a turntable 57, a scraping strip 58 and a rotating shaft 59. The bottom of the liquid injection tank 5 is fixedly connected to the liquid injection head 51. One side of the bottom of the liquid injection tank 5 is movably connected to the rotating shaft 59. The outer surface of the rotating shaft 59 is movably connected to the scraping blade 53 and the cleaning tank 52. The top of the cleaning tank 52 is fixedly connected to the scraping strip 58. Spring pieces 54 are fixedly connected to one side of both the cleaning tank 52 and the scraping blade 53. The outer surface of the liquid injection tank 5 is fixedly connected to the fixed disk 56. The top of the fixed disk 56 is fixedly installed with the second motor 55. The output end of the second motor 55 is fixedly connected to the turntable 57.

[0036] The liquid distribution tank 6 includes a liquid injection pipe 61, an injection cylinder 62 and a fixing block 63. The top of the liquid distribution tank 6 is fixedly connected to the liquid injection pipe 61. The top of the liquid injection pipe 61 is fixedly connected to the injection cylinder 62. The outer surface of the injection cylinder 62 is fixedly connected to the fixing block 63.

[0037] After the electrolyte is discharged from the liquid injection head 51, the second motor 55 drives the turntable 57 to drive the scraping blade 53 to move. When the scraping blade 53 moves to the rearmost end, the scraping blade 53 scrapes off the residual liquid on the liquid injection head 51 after folding, and the liquid is left in the cleaning tank 52 for collection through the scraping strip 58. The second motor 55 reverses, and the spring piece 54 restores to make the scraping blade 53 return to its original position.

[0038] Furthermore, one end of the scraping blade 53 and the cleaning tank 52 are connected through a rotating shaft, and the scraping blade 53 and the cleaning tank 52 are rotatably connected to the liquid injection tank 5.

[0039] Further, an arc-shaped chute is provided at the bottom of the turntable 57, and a slider is provided at the top of the wiper blade 53. The wiper blade 53 is movably arranged at the bottom of the turntable 57 through the slider.

[0040] Further, the wiper blade 53 is foldably arranged with the cleaning box 52. The elastic piece 54 is made of arc-shaped spring steel. The inside of the cleaning box 52 is hollow. A through groove is provided on one side of the cleaning box 52, and the through groove of the cleaning box 52 is below the wiper blade 53.

[0041] When implementing the technical solution recorded in this embodiment, after installing and fixing the bottom plate 1, adjust the position of the operating table 3. Place the battery pack on one side of the operating table 3. Pull open the limiting plate 32, push the battery panel along the baffle 33 to one side along the fixing plate 31, move the limiting plate 32 from the fixing plate 31. The first motor 41 drives the gear 42, and the gear 42 drives the adjusting rod 43 to open, stretching the spring 44. The adjusting rod 43 clamps both sides of the battery panel, and the roller 45 rotates with the adjusting rod 43, so that the left-pushed battery panel is moved and squeezed by the roller 45. The battery panel moves along the groove on the one-way chain 46 and is arranged on the operating table 3. After the electrolyte is discharged from the liquid injection head 51, the second motor 55 drives the turntable 57 to drive the wiper blade 53 to move. When the wiper blade 53 moves to the rearmost end, after the wiper blade 53 is folded, the liquid remaining on the liquid injection head 51 is scraped off and left in the cleaning box 52 through the scraping strip 58 for collection. The second motor 55 reverses, and the elastic piece 54 resumes to make the wiper blade 53 return to its original position.

Claims

1. A lithium battery liquid injection device capable of automatic clamping, characterized in that, Including: A bottom plate (1), on both sides of the top of the bottom plate (1), side plates (2) are fixedly connected, and an operating table (3) is fixedly connected to the top of the bottom plate (1); Side plates (2), on the top of the side plates (2), a liquid injection tank (5) is fixedly connected; Liquid injection tank (5), on the outer surface of the liquid injection tank (5), a mounting plate (4) is fixedly connected, and on the top of the liquid injection tank (5), a liquid distribution tank (6) is fixedly connected.

2. The lithium battery liquid injection device capable of automatic clamping according to claim 1, wherein: The operating table (3) includes a fixing plate (31), a limiting plate (32) and a shielding plate (33). On one side of the operating table (3), a fixing plate (31) is movably connected. On one side of the fixing plate (31), a limiting plate (32) is movably connected. On the outer surface of the fixing plate (31), a shielding plate (33) is fixedly connected; The mounting plate (4) includes a first motor (41), a gear (42), an adjusting rod (43), a spring (44), a roller (45) and a one-way chain (46). On one side of the mounting plate (4), a first motor (41) is fixedly installed. The output end of the first motor (41) is fixedly connected to a gear (42). On one side of the gear (42), an adjusting rod (43) is fixedly connected. On the back of the adjusting rod (43), a spring (44) is fixedly connected. At the bottom of the adjusting rod (43), a roller (45) is movably connected. On the back of the roller (45), a one-way chain (46) is fixedly connected.

3. The lithium battery liquid injection device capable of automatic clamping according to claim 2, characterized in that: The fixing plate (31) is rotationally connected to the operating table (3) through a rotating block. On the top of the fixing plate (31), a sliding groove is opened. The limiting plate (32) is arranged to move from right to left through the sliding groove of the fixing plate (31).

4. The lithium battery liquid injection device capable of automatic clamping according to claim 2, wherein: There are two gears (42), and the two gears (42) are meshed with each other. The spring (44) is located below the gear (42).

5. The lithium battery liquid injection device capable of automatic clamping according to claim 2, wherein: The roller (45) is connected to the adjusting rod (43) through a rotating shaft. The one-way chain (46) is wound around the outer surface of the roller (45). On one side of the one-way chain (46), a groove is provided.

6. The lithium battery liquid injection device capable of automatic clamping according to claim 1, wherein: The liquid injection tank (5) includes a liquid injection head (51), a cleaning box (52), a scraping blade (53), a spring piece (54), a second motor (55), a fixing disk (56), a rotating disk (57), a scraping strip (58) and a rotating shaft (59). At the bottom of the liquid injection tank (5), a liquid injection head (51) is fixedly connected. On one side of the bottom of the liquid injection tank (5), a rotating shaft (59) is movably connected. On the outer surface of the rotating shaft (59), a scraping blade (53) and a cleaning box (52) are movably connected. On the top of the cleaning box (52), a scraping strip (58) is fixedly connected. On one side of the cleaning box (52) and the scraping blade (53), a spring piece (54) is fixedly connected. On the outer surface of the liquid injection tank (5), a fixing disk (56) is fixedly connected. On the top of the fixing disk (56), a second motor (55) is fixedly installed. The output end of the second motor (55) is fixedly connected to a rotating disk (57).

7. An automatic loading lithium battery liquid injection device according to claim 6, characterized in that: One end of the scraping blade (53) and the cleaning box (52) are connected through a rotating shaft. The scraping blade (53) and the cleaning box (52) are rotationally connected to the liquid injection tank (5).

8. An automatic clamping lithium battery liquid injection device according to claim 6, characterized in that: An arc-shaped sliding groove is provided at the bottom of the turntable (57), a slider is provided at the top of the wiper blade (53), and the wiper blade (53) is movably arranged at the bottom of the turntable (57) through the slider.

9. The lithium battery liquid injection device capable of automatically clamping as claimed in claim 6, wherein: The wiper blade (53) is foldably arranged with the cleaning box (52), the elastic piece (54) is made of arc-shaped spring steel, the inside of the cleaning box (52) is hollow, a through groove is provided on one side of the cleaning box (52), and the through groove of the cleaning box (52) is below the wiper blade (53).

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