Rapid splicing and assembling device and method for lithium ion battery pack

Abstract

The invention relates to the technical field of lithium battery splicing, in particular to a rapid splicing and assembling device and method for a lithium ion battery pack, the rapid splicing and assembling device comprises a machine base and a plurality of lithium ion battery monomers, the top of the machine base is provided with a battery storage plate for placing the plurality of lithium ion battery monomers, and the top of the machine base is fixedly connected with a fixed holder; a movable plate is arranged above the fixed holder, a displacement assembly for driving the movable plate to move is arranged at the top of the fixed holder, a plurality of clamping strips for clamping lithium ion battery cells are arranged on one side of the movable plate, a plurality of extension blocks are arranged on the two sides of each clamping strip, and a transmission plate is slidably connected to the interior of the movable plate. And a driving assembly for driving the multiple clamping strips to move mutually is arranged in the transmission plate, power assemblies for driving the extension blocks to move are arranged in the multiple clamping strips, and two battery protection frames for supporting the single lithium ion batteries are arranged above the machine base. And the plurality of clamping strips can be used for clamping the battery monomers with different sizes.

Description

Technical Field

[0001] This invention relates to the field of lithium battery assembly technology, specifically to a rapid assembly device and method for lithium-ion battery packs. Background Art

[0002] Lithium-ion battery packs are widely used in electric vehicles, energy storage systems, portable devices, and many other fields due to their significant advantages such as high energy density, lightweight, and long lifespan. A lithium battery pack is a battery system formed by connecting multiple lithium batteries together in a specific way. Lithium battery packs are typically composed of multiple individual lithium batteries connected in series or parallel to provide higher voltage, capacity, or current output capabilities. Because of their high energy density, lightweight, and long lifespan, lithium battery packs are widely used in various fields, including electric vehicles, energy storage systems, and portable devices. Before connecting multiple individual lithium batteries, they need to be neatly and evenly arranged and fixed to ensure that there is no short circuit or collision between them. Generally, to facilitate stable electrical connection operations, two connecting brackets are used to clamp and fix the multiple individual lithium batteries. At this point, the clamped multiple lithium batteries form a whole, facilitating electrical connection between the individual lithium batteries and subsequent packaging and sealing.

[0003] For example, the patent application with publication number CN117317390A relates to the field of lithium battery assembly technology, and in particular to a rapid assembly device for lithium-ion battery packs. This device includes an L-shaped worktable, a material conveying unit, and an insertion unit. The material conveying unit periodically transports rows of lithium battery packs via an intermittent conveying section. During intermittent stops, a material centering section, a combination pushing section, and a docking transfer section process each row of lithium batteries, ultimately transforming a row of lithium batteries from a horizontal to a vertical position. Then, the insertion unit, guided vertically by an auxiliary positioning section, inserts this row of lithium batteries onto a lower connecting bracket. Repeating this process several times completes one round of lithium battery insertion. This highly automated process significantly improves the assembly efficiency of multiple individual lithium batteries. Furthermore, the automated assembly process reduces human error and component damage, ensuring product quality and performance stability.

[0004] The existing transfer and insertion unit designs primarily focus on the lateral assembly of lithium batteries, which performs well when handling single or a few battery packs. However, problems arise in practical applications, especially when constructing rectangular lithium battery packs. Since rectangular lithium battery packs require multiple laterally arranged lithium battery cells connected vertically, relying solely on existing lateral transfer and insertion units necessitates adjusting the working direction or repositioning after each group of lateral lithium batteries is assembled, in order to proceed with the next group, followed by vertical connections. This repeated coordination not only increases operational complexity but also significantly prolongs overall assembly time, thus impacting production efficiency. Therefore, this application proposes a rapid assembly apparatus and method for lithium-ion battery packs. Summary of the Invention

[0005] The purpose of this invention is to provide a rapid assembly device and method for lithium-ion battery packs to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rapid assembly device for lithium-ion battery packs, comprising a base and multiple lithium-ion battery cells. A battery storage plate for holding the multiple lithium-ion battery cells is provided on the top of the base. A fixed gimbal is fixedly connected to the top of the base. A movable plate is provided above the fixed gimbal, and a displacement component for driving the movable plate to move is provided on the top of the fixed gimbal. Multiple clamping strips for holding lithium-ion battery cells are provided on one side of the movable plate. Multiple extension blocks are provided on both sides of the clamping strips. A transmission plate is slidably connected inside the movable plate. A driving component for driving the multiple clamping strips to move relative to each other is provided inside the transmission plate. A power component for driving the extension blocks to move is provided inside each of the clamping strips. Two battery protection frames for supporting the lithium-ion battery cells are provided above the base.

[0007] Preferably, the drive assembly includes multiple guide grooves formed inside the transmission plate, with multiple rollers rotatably connected in each of the multiple guide grooves. A slider fixedly connected to multiple clamping strips is slidably connected to one side of the movable plate. A connecting plate rotatably connected to the rollers is fixedly connected to one side of each slider. A second cylinder is fixedly connected to one side of the movable plate, and the output end of the second cylinder extends into the interior of the movable plate and is fixedly connected to the transmission plate.

[0008] Preferably, the power assembly includes an air receiving cylinder fixedly connected inside the clamping bar, a transmission piston rod adapted to be slidably connected to one side of the air receiving cylinder, a fixed frame for sliding connection of the extension block fixedly connected inside the clamping bar, a crank rotatably connected to one side of the extension block, and a movable block rotatably connected to the crank on the outer surface of the transmission piston rod.

[0009] Preferably, each of the multiple connecting plates has an air supply cylinder fixedly connected inside. One side of the air supply cylinder is slidably connected to an air supply piston rod adapted to it. The bottom of the air supply cylinder is connected to a vent pipe. The end of the vent pipe away from the air supply cylinder extends into the receiving cylinder. One end of the air supply piston rod is fixedly connected to an abutment block that can abut against the transmission plate.

[0010] Preferably, a return spring is fitted on the outer surface of the gas delivery piston rod for resetting, and a solenoid valve is connected to the top of the gas delivery cylinder.

[0011] Preferably, the displacement component includes a second guide rail fixedly connected to the top of the fixed gimbal, both ends of the movable plate are slidably connected to sliding shoes, and the sliding shoes are adapted to the second guide rail. A top frame is fixedly connected to the top of the sliding shoes, and a first cylinder is fixedly connected to the top of the top frame. The output end of the first cylinder is fixedly connected to the movable plate.

[0012] Preferably, auxiliary frames are fixedly connected to both sides of the base, a third cylinder is fixedly connected to the top of the auxiliary frames, a gripper is fixedly connected to the output end of the third cylinder, a fourth cylinder is fixedly connected to the bottom of the base, and a limit seat is fixedly connected to the output end of the fourth cylinder.

[0013] Preferably, the top of the base is fixedly connected to a first guide rail for moving the battery storage plate.

[0014] Preferably, the outer surface of the clamping strip and both sides of the plurality of fixing frames are fixedly connected with rubber strips.

[0015] This invention also provides a method for rapid assembly of lithium-ion battery packs, comprising the following steps: S1. First, drive the battery storage board to move and transport multiple lithium-ion battery cells. Then, activate the displacement component so that multiple clamps are inserted between multiple lithium-ion battery cells respectively. S2. Then, the drive plate is pushed to move closer to the clamping bar, so that the clamping bar moves closer and clamps multiple lithium-ion battery cells. At the same time, as the drive plate gradually moves closer to the clamping bar, it will drive the power component, so that the extension block unfolds inside the clamping bar and expands, thereby abutting against the gap between each lithium-ion battery cell and forming a fixation. S3. Then, the two battery protection frames are brought close together to assemble multiple lithium-ion battery cells. S4. Then, control the extension block to contract inside the clamping strip, so that the power component is reset and the restriction on the gaps of multiple lithium-ion battery cells is released. Then, manipulate the multiple clamping strips to move away from the lithium-ion battery cells.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The transmission plate is moved by a second cylinder, and the sliding mechanism of rollers in the guide groove allows for precise and stable movement of multiple clamping strips, effectively clamping the lithium-ion battery cells. This design is both fast and accurate, greatly improving production efficiency. The unfolding mechanism of the extension block further enhances the stability of the clamping. After the clamping strips hold the battery cell, the extension block unfolds inside the rubber band, filling the gaps between the cells, thus forming a more secure fixation. This design not only increases the contact area of ​​the clamping but also improves the uniformity and stability of the clamping, and can adapt to lithium-ion battery cells of different sizes. By adjusting the spacing of the clamping strips, clamping of battery cells of different sizes can be achieved. Multiple technologies, including pneumatic transmission and mechanical control, enable intelligent control of the clamping and fixing process. The opening and closing of the solenoid valve allows for convenient control of gas flow, thereby achieving precise control of the unfolding and resetting of the extension block.

[0017] 2. By incorporating a displacement component, the position and height of the movable plate and its clamping strips can be flexibly adjusted. This adjustability allows the system to easily adapt to battery cells of different sizes and arrangements, improving the equipment's versatility and flexibility. The first cylinder drives the clamping strips up and down, adjusting the height of the battery cells, which is crucial for subsequent assembly and transportation. Driven by the third and fourth cylinders, the two battery protection frames move closer together and press against each other, achieving a secure fixation. This fixing method is not only stable and reliable but also quick, improving production efficiency. The extension block's unfolding and resetting mechanism further enhances the fixing effect. After the clamping strips hold the battery cells, the extension block fills the gaps between the cells, forming a tighter fixation. When it is necessary to release the fixation, the extension block can quickly reset, facilitating the removal and replacement of the battery cells. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the battery storage board in this invention; Figure 4 This is a schematic diagram of the fixed gimbal structure in this invention; Figure 5 This is a schematic diagram of the movable plate in this invention; Figure 6 This is a schematic cross-sectional view of the movable plate in this invention; Figure 7 This is a schematic cross-sectional view of the clamping strip in this invention; Figure 8 This is a schematic diagram of the slider structure in this invention; Figure 9 For the present invention Figure 8 A schematic diagram of the structure at center A; Figure 10 This is a schematic cross-sectional view of the slider in this invention; Figure 11 For the present invention Figure 10 Enlarged schematic diagram of the structure at point B; Figure 12 This is a schematic diagram of the fixing frame in this invention; Figure 13 This is a schematic diagram of the structure in this invention where the battery storage board is removed.

[0019] In the diagram: 100, base; 101, first guide rail; 102, battery storage board; 103, lithium-ion battery cell; 200, fixed gimbal; 201, second guide rail; 202, sliding shoe; 203, top frame; 204, movable plate; 205, first cylinder; 300, clamping bar; 301, rubber belt; 302, slider; 303, second cylinder; 304, transmission plate; 305, guide groove; 306, connecting plate; 307, roller. 308. Air cylinder; 309. Air piston rod; 310. Return spring; 311. Contact block; 312. Solenoid valve; 313. Air pipe; 314. Air receiving cylinder; 315. Transmission piston rod; 316. Fixing frame; 317. Extension block; 318. Crank; 319. Movable block; 400. Battery protection frame; 401. Auxiliary frame; 402. Third cylinder; 403. Fourth cylinder; 404. Limit seat; 405. Gripper. Detailed Implementation

[0020] 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.

[0021] Example 1: Please refer to Figure 1 , Figure 2 as well as Figure 3This invention provides a technical solution: a rapid assembly device for lithium-ion battery packs, including a base 100 and multiple lithium-ion battery cells 103. A battery storage plate 102 for holding the multiple lithium-ion battery cells 103 is provided on the top of the base 100. A fixed gimbal 200 is fixedly connected to the top of the base 100. A movable plate 204 is provided above the fixed gimbal 200. Multiple clamping strips 300 for holding the lithium-ion battery cells 103 are provided on one side of the movable plate 204. Multiple extension blocks 317 are provided on both sides of the clamping strips 300. A transmission plate 304 is slidably connected inside the movable plate 204. A driving component for driving the multiple clamping strips 300 to move relative to each other is provided inside the transmission plate 304. By setting the driving component, the clamping strips 300 can be effectively driven to move closer to each other and abut against the multiple lithium-ion battery cells 103, thereby clamping the lithium-ion battery cells 103. The multiple extension blocks 317 can be extended and fixed in the gaps between the multiple lithium-ion battery cells 103.

[0022] For further details, please refer to Figure 4 , Figure 5 as well as Figure 6 The drive assembly includes multiple guide grooves 305 formed inside the transmission plate 304. The multiple guide grooves 305 are symmetrically formed. Multiple rollers 307 are rotatably connected to each of the multiple guide grooves 305. A slider 302 is slidably connected to one side of the movable plate 204 and fixedly connected to multiple clamping strips 300. A connecting plate 306 is fixedly connected to one side of each slider 302 and rotatably connected to the rollers 307. A second cylinder 303 is fixedly connected to one side of the movable plate 204. The output end of the second cylinder 303 extends into the interior of the movable plate 204 and is fixedly connected to the transmission plate 304. By setting the second cylinder 303, the transmission plate 304 can be driven to move, so that the multiple clamping strips 300 move closer or further apart, thereby adapting to clamping lithium-ion battery cells 103 of different sizes.

[0023] For further details, please refer to Figure 10 , Figure 11 as well as Figure 12 Each of the multiple clamping bars 300 has a power assembly inside that drives the extension block 317 to move. The power assembly includes an air receiving cylinder 314 fixedly connected inside the clamping bar 300. A transmission piston rod 315 adapted to the air receiving cylinder 314 is slidably connected to one side of the air receiving cylinder 314. A fixing frame 316 for sliding connection of the extension block 317 is fixedly connected inside the clamping bar 300. A crank 318 is rotatably connected to one side of the extension block 317. A movable block 319 rotatably connected to the crank 318 is fixedly connected to the outer surface of the transmission piston rod 315. The power assembly can drive the extension block 317 to unfold and be located in the gap between the multiple lithium-ion battery cells 103, thereby increasing the contact area with the lithium-ion battery cells 103 and increasing the clamping force.

[0024] Please refer to Figure 7 , Figure 8 as well as Figure 9 Multiple connecting plates 306 are each fixedly connected to an air supply cylinder 308. An air supply piston rod 309 is slidably connected to one side of the air supply cylinder 308. A vent pipe 313 is connected to the bottom of the air supply cylinder 308. The end of the vent pipe 313 away from the air supply cylinder 308 extends into the receiving cylinder 314. One end of the air supply piston rod 309 is fixedly connected to a contact block 311 that can abut against the transmission plate 304. A return spring 310 is sleeved on the outer surface of the air supply piston rod 309 for its reset. The top of the air supply cylinder 308... The outer surface of the clamping strip 300 connected to the solenoid valve 312 is fixedly connected to the rubber belt 301 on both sides of the multiple fixing brackets 316. By setting the abutment block 311, the gas delivery piston rod 309 can slide inside the gas delivery cylinder 308, so that the gas in the gas delivery cylinder 308 is delivered to the gas receiving cylinder 314, so that the transmission piston rod 315 slides, thereby driving the extension block 317 to move. At the same time, the abutment block 311 can abut against the transmission plate 304, so that when the clamping strip 300 clamps each other, it drives the multiple extension blocks 317 to unfold.

[0025] It is worth mentioning that when it is necessary to release the clamping of multiple lithium-ion battery cells 103, the solenoid valve 312 can be opened to allow the gas in the gas delivery cylinder 308 to leak out, and the gas in the receiving cylinder 314 can be discharged through the vent pipe 313. This causes the transmission piston rod 315 to reset and drive the extension block 317 to reset, thereby releasing the resistance to the lithium-ion battery cells 103. This makes it easier to remove the clamping strip 300 from the multiple lithium-ion battery cells 103.

[0026] Specifically, by activating the second cylinder 303, the transmission plate 304 is pushed closer to the clamping bar 300, thereby driving multiple rollers 307 to slide within the guide groove 305. This, in turn, drives multiple sliders 302 to move closer together, causing the clamping bar 300 to move closer and clamp multiple lithium-ion battery cells 103. Simultaneously, as the transmission plate 304 gradually approaches the clamping bar 300, it contacts the abutment block 311, applying pressure to the gas delivery piston rod 309. This, in turn, causes the piston end of the piston rod to move within the gas delivery cylinder 308, thereby driving... The gas in the gas delivery cylinder 308 is delivered to the receiving cylinder 314 through the vent pipe 313. At this time, the gas in the receiving cylinder 314 gradually expands and pushes the piston end of the transmission piston rod 315 to move, so that the transmission piston rod 315 drives multiple movable blocks 319 to move synchronously, thereby causing the crank 318 to tilt and push the extension block 317 connected to it to move away from each other, so that the extension block 317 unfolds inside the rubber belt 301 and expands, thereby contacting the gap between each lithium-ion battery cell 103 to form a fixed position.

[0027] In summary, by driving the transmission plate 304 to move via the second cylinder 303, and utilizing the sliding mechanism of the roller 307 within the guide groove 305, multiple clamping strips 300 can be precisely and smoothly driven to approach each other, effectively clamping the lithium-ion battery cell 103. This design is both fast and accurate, greatly improving production efficiency, and the unfolding mechanism of the extension block 317 further enhances the stability of the clamping. After the clamping strips 300 clamp the battery cell, the extension block 317 unfolds inside the rubber strip, filling the gaps between the cells, thus forming a more robust fixing effect. This design not only increases the contact area of ​​the clamping but also improves the uniformity and stability of the clamping, and can adapt to lithium-ion battery cells of different sizes. By adjusting the spacing of the clamping strips 300, clamping of battery cells of different sizes can be achieved. Multiple technologies, such as pneumatic transmission and mechanical control, enable intelligent control of the clamping and fixing process. By opening and closing the solenoid valve 312, the flow of gas can be easily controlled, thereby achieving precise control of the unfolding and resetting of the extension block 317.

[0028] Example 2: Please refer to Figure 2 , Figure 4 as well as Figure 13 The present invention also provides a technical solution, which differs from the technical solution of Embodiment 1 as follows: a rapid splicing and assembly device for lithium-ion battery packs, wherein a displacement component for driving a movable plate 204 to move is provided on the top of a fixed gimbal 200, the displacement component includes a second guide rail 201 fixedly connected to the top of the fixed gimbal 200, both ends of the movable plate 204 are slidably connected to sliding shoes 202, and the sliding shoes 202 are adapted to the second guide rail 201, the top of the sliding shoes 202 is fixedly connected to a top frame 203, the top of the top frame 203 is fixedly connected to a first cylinder 205, the output end of the first cylinder 205 is fixedly connected to the movable plate 204, wherein the second guide rail 201 can drive the sliding shoes 202 to move, thereby causing the movable plate 204 to move, thereby adjusting the position of multiple clamping strips 300, and by setting the first cylinder 205 to drive the movable plate 204 to move up and down, the height of multiple clamping strips 300 can be adjusted, thereby facilitating the adjustment of the height position of multiple lithium-ion battery cells 103.

[0029] Furthermore, two battery protection frames 400 for supporting lithium-ion battery cells 103 are provided on the upper part of the base 100. Auxiliary frames 401 are fixedly connected to both sides of the base 100. A third cylinder 402 is fixedly connected to the top of the auxiliary frame 401, and a gripper 405 is fixedly connected to the output end of the third cylinder 402. A fourth cylinder 403 is fixedly connected to the bottom of the base 100, and a limit seat 404 is fixedly connected to the output end of the fourth cylinder 403. A first guide rail 101 for moving the battery storage plate 102 is fixedly connected to the top of the base 100. The battery protection frame 400 can be used to support and protect multiple lithium-ion battery cells 103, while the gripper 405 can support and fix one battery protection frame 400. The top of the limiting seat 404 can place a battery protection frame 400. Under the action of the fourth cylinder 403 and the third cylinder 402, the two battery protection frames 400 can be driven to approach each other and squeeze multiple lithium-ion battery cells 103 to fix them. At the same time, the battery storage plate 102 can store a large number of lithium-ion battery cells 103 and is adapted to the first guide rail 101 to drive the battery storage plate 102 to move.

[0030] Specifically, the first cylinder 205 is then activated, causing the movable plate 204 to move upward, which in turn causes multiple clamping bars 300 to hold multiple lithium-ion battery cells 103 and move them upward, disengaging them from the first guide rail 101. At the same time, the second guide rail 201 is activated to reset the sliding shoe 202. Then, the two battery protection frames 400 are placed on the limiting seat 404 and the gripper 405, respectively. Then, the third cylinder 402 and the fourth cylinder 403 are activated to bring the two battery protection frames 400 closer together to assemble the multiple lithium-ion battery cells 103. Then, multiple solenoid valves 312 are opened to allow gas to leak out of the air cylinder 308, which resets the transmission piston rod 315 and drives multiple extension blocks 317 to reset, thus releasing the limiting position on the gaps of the multiple lithium-ion battery cells 103. Then, the second guide rail 201 is manipulated to drive the multiple clamping bars 300 away from the lithium-ion battery cells 103. Finally, the fourth cylinder 403 is activated to retract, causing the limiting seat 404 to move downward and transport the assembled battery pack out of the base 100.

[0031] In summary, by setting up the displacement component, the position and height of the movable plate 204 and its clamping strips 300 can be flexibly adjusted. This adjustability allows the system to easily adapt to battery cells of different sizes and arrangements, improving the versatility and flexibility of the equipment. The drive of the first cylinder 205 enables the clamping strips 300 to move up and down, thereby adjusting the height of the battery cells, which is crucial for subsequent assembly and transportation. Driven by the third cylinder 402 and the fourth cylinder 403, the two battery protection frames 400 can approach each other and squeeze the battery cells, achieving a firm fixation. This fixing method is not only stable and reliable but also quick, improving production efficiency. The unfolding and resetting mechanism of the extension block 317 further enhances the fixing effect. When the clamping strips 300 clamp the battery cells, the extension block 317 can fill the gaps between the cells, forming a tighter fixation. When it is necessary to release the fixation, the extension block 317 can quickly reset, facilitating the removal and replacement of the battery cells.

[0032] Example 3: Please refer to Figures 1 to 13 The present invention also provides a technical solution, which differs from the technical solution of Embodiment 1 as follows: a method for rapid assembly of lithium-ion battery packs, comprising the following steps: S1. First, the first guide rail 101 is opened to drive the battery storage board 102 to move and transport multiple lithium-ion battery cells 103. Then, the second guide rail 201 is opened to drive the sliding shoe 202 to move, thereby driving the movable plate 204 to move so that multiple clamping strips 300 are inserted between multiple lithium-ion battery cells 103 respectively. S2. Subsequently, the second cylinder 303 is activated, causing it to push the transmission plate 304 towards the clamping bar 300, thereby driving multiple rollers 307 to slide within the guide groove 305, which in turn drives multiple sliders 302 to move closer together, causing the clamping bar 300 to move closer and clamp multiple lithium-ion battery cells 103. At the same time, as the transmission plate 304 gradually approaches the clamping bar 300, it contacts the abutment block 311, which applies pressure to the gas delivery piston rod 309, thereby driving its piston end to move within the gas delivery cylinder 308, thus driving... The gas in the gas delivery cylinder 308 is delivered to the receiving cylinder 314 through the vent pipe 313. At this time, the gas in the receiving cylinder 314 gradually expands and pushes the piston end of the transmission piston rod 315 to move, so that the transmission piston rod 315 drives multiple movable blocks 319 to move synchronously, thereby causing the crank 318 to tilt and push the extension block 317 connected to it to move away from each other, so that the extension block 317 unfolds inside the rubber belt 301 and expands, thereby contacting the gap between each lithium-ion battery cell 103 to form a fixed position. S3. Then, the first cylinder 205 is driven to move the movable plate 204 upward, causing multiple clamping bars 300 to hold multiple lithium-ion battery cells 103 and move them upward to disengage from the first guide rail 101. At the same time, the second guide rail 201 is driven to reset the sliding shoe 202. Then, the two battery protection frames 400 are placed on the limiting seat 404 and the gripper 405 respectively. Then, the third cylinder 402 and the fourth cylinder 403 are driven to bring the two battery protection frames 400 closer to each other to assemble the multiple lithium-ion battery cells 103. S4. Then, multiple solenoid valves 312 are opened to allow gas to leak out of the gas cylinder 308, causing the transmission piston rod 315 to reset and drive multiple extension blocks 317 to reset, thereby releasing the limit on the gaps of multiple lithium-ion battery cells 103. Then, the second guide rail 201 is operated to drive multiple clamping bars 300 away from the lithium-ion battery cells 103. Then, the fourth cylinder 403 is opened to retract, causing the limit seat 404 to move down and transport the assembled battery pack out of the base 100.

[0033] In summary, mechanical clamping and securing of lithium-ion battery cells reduces the risk of damage due to vibration or misoperation during transportation and assembly. The use of extension blocks 317 within the rubber belt to fill the gaps between cells further enhances the structural stability and shock resistance of the battery pack. The pneumatic drive to expand the extension blocks 317 and secure the battery cells is both novel and efficient. Pneumatic drive is characterized by its fast response, high force, and ease of control. The expansion and contraction of the extension blocks 317 within the rubber belt 301 not only achieves precise filling of the gaps between battery cells but also avoids the pressure concentration problems that may arise from traditional rigid clamps, protecting the battery cells from damage. By adjusting the extension and contraction of the cylinder, the assembly and disassembly of the battery protection frame, as well as the overall lifting and transportation of the battery pack, can be easily achieved. This design makes the entire process more flexible and adaptable to battery cells and protection frames of different sizes and specifications.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A lithium-ion battery pack rapid splicing and assembly device, comprising a base (100) and a plurality of lithium-ion battery cells (103), characterized in that: A battery storage plate (102) for placing a plurality of lithium-ion battery cells (103) is arranged on the top of the machine base (100), a fixed platform (200) is fixedly connected to the top of the machine base (100), a movable plate (204) is arranged above the fixed platform (200), and a displacement component for driving the movable plate (204) to move is arranged on the top of the fixed platform (200), and a plurality of clamping strips (300) for clamping the lithium-ion battery cells (103) are arranged on one side of the movable plate (204). , a plurality of extension blocks (317) are arranged on both sides of the plurality of clamping strips (300), a transmission plate (304) is slidably connected to the inside of the movable plate (204), a driving assembly for driving the plurality of clamping strips (300) to move relative to each other is arranged inside the transmission plate (304), a power assembly for driving the extension blocks (317) to move is arranged inside the plurality of clamping strips (300), and two battery protection frames (400) for supporting lithium-ion battery cells (103) are arranged above the machine base (100).

2. A lithium-ion battery pack rapid splicing and assembly device according to claim 1, characterized in that: The driving assembly comprises a plurality of guide grooves (305) provided inside a transmission plate (304), a plurality of rollers (307) being rotatably connected in the plurality of guide grooves (305), a slider (302) fixedly connected to a plurality of clamping strips (300) being slidably connected to one side of the movable plate (204), a connecting plate (306) rotatably connected to the rollers (307) being fixedly connected to one side of the slider (302), a second cylinder (303) being fixedly connected to one side of the movable plate (204), an output end of the second cylinder (303) extending to the inside of the movable plate (204) and being fixedly connected to the transmission plate (304).

3. A lithium-ion battery pack rapid splicing and assembly device according to claim 2, characterized in that: The power assembly comprises an air receiving cylinder (314) fixedly connected to the inside of the clamping strip (300), a transmission piston rod (315) adapted thereto being slidably connected to one side of the air receiving cylinder (314), a fixed frame (316) for slidingly connecting an extension block (317) being fixedly connected to the inside of the clamping strip (300), a crank (318) being rotatably connected to one side of the extension block (317), and a movable block (319) rotatably connected to the crank (318) being fixedly connected to the outer surface of the transmission piston rod (315).

4. A lithium-ion battery pack rapid splicing and assembly device according to claim 3, characterized in that: A plurality of connecting plates (306) are fixedly connected to the inside of each of the connecting plates (306), a gas delivery cylinder (308) is slidably connected to one side of the gas delivery cylinder (308) with a gas delivery piston rod (309) adapted thereto, a vent pipe (313) is connected to the bottom of the gas delivery cylinder (308), one end of the vent pipe (313) away from the gas delivery cylinder (308) extends into a gas receiving cylinder (314), and one end of the gas delivery piston rod (309) is fixedly connected to a resistance block (311) capable of resisting against a transmission plate (304).

5. A lithium-ion battery pack rapid splicing and assembly device according to claim 4, characterized in that: The outer surface of the gas delivery piston rod (309) is sleeved with a return spring (310) for returning the gas delivery piston rod (309), and the top of the gas delivery cylinder (308) is connected to a solenoid valve (312).

6. A lithium-ion battery pack rapid splicing and assembly device according to claim 1, characterized in that: The displacement assembly comprises a second guide rail (201) fixedly connected to the top of the fixed pan-tilt platform (200); both ends of the movable plate (204) are slidably connected to sliding shoes (202), and the sliding shoes (202) are adapted to the second guide rail (201); the top of the sliding shoes (202) is fixedly connected to a top frame (203); the top of the top frame (203) is fixedly connected to a first cylinder (205); and the output end of the first cylinder (205) is fixedly connected to the movable plate (204).

7. A lithium-ion battery pack rapid splicing and assembly device according to claim 1, characterized in that: Auxiliary frames (401) are fixedly connected to both sides of the machine base (100), a third cylinder (402) is fixedly connected to the top of the auxiliary frame (401), a clamping claw (405) is fixedly connected to the output end of the third cylinder (402), a fourth cylinder (403) is fixedly connected to the bottom of the machine base (100), and a limit seat (404) is fixedly connected to the output end of the fourth cylinder (403).

8. The lithium-ion battery pack rapid splicing and assembly device according to claim 1, characterized in that: The top of the machine base (100) is fixedly connected to a first guide rail (101) for moving the battery storage plate (102).

9. A lithium-ion battery pack rapid splicing and assembly device according to claim 3, characterized in that: Rubber belts (301) are fixedly connected to the outer surface of the clamping strip (300) and on both sides of the plurality of fixing frames (316).

10. A lithium-ion battery pack rapid splicing and assembly method, using a lithium-ion battery pack rapid splicing and assembly device according to any one of claims 1 to 9, characterized in that: S1, first driving the battery storage plate (102) to move to transport a plurality of lithium-ion battery cells (103), and then opening the displacement assembly so that a plurality of clamping strips (300) are respectively inserted between the plurality of lithium-ion battery cells (103); S2, then pushing the transmission plate (304) to move in a direction close to the clamping bar (300), so that the clamping bar (300) approaches and clamps the plurality of lithium-ion battery cells (103), and at the same time, when the transmission plate (304) gradually approaches the clamping bar (300), it drives the power assembly, so that the extension block (317) is unfolded inside the clamping bar (300) and expands, thereby contacting the gap between each lithium-ion battery cell (103) to form a fixation; S3, subsequently bringing two battery protection frames (400) closer together to assemble a plurality of lithium-ion battery cells (103); S4, then controlling the extension block (317) to contract inside the clamping bar (300), so that the power assembly is reset and the position restriction on the gaps between the plurality of lithium-ion battery cells (103) is released, and then the plurality of clamping bars (300) are controlled to move away from the lithium-ion battery cells (103).

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