A lithium-ion battery pack rapid splicing assembly device and method

Abstract

The present invention relates to the technical field of lithium battery splicing, specifically to a lithium ion battery pack rapid splicing assembly device and method thereof, comprising a machine base and a plurality of lithium ion battery cells, a battery storage plate for placing a plurality of lithium ion battery cells is arranged on the top of the machine base, a fixed pan head is fixedly connected to the top of the machine base, a movable plate is arranged above the fixed pan head, and a displacement component for driving the movable plate to move is arranged on the top of the fixed pan head, 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 both sides of the plurality of clamping strips, a transmission plate is slidably connected inside the movable plate, a driving component for driving the plurality of clamping strips to move relative to each other is arranged inside the transmission plate, a power component for driving the extension blocks to move is arranged inside the plurality of clamping strips, and two battery protection frames for supporting lithium ion battery cells are arranged above the machine base. The plurality of clamping strips can clamp battery cells of different sizes.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery splicing, and in particular to a lithium ion battery pack rapid splicing assembly device and method. Background Art

[0002] Lithium-ion battery packs have been widely used in many fields such as electric vehicles, energy storage systems, and portable devices due to their significant advantages such as high energy density, light weight, and long life. Lithium battery packs are battery systems that connect multiple lithium batteries in a specific way to form an integrated system. Lithium battery packs are usually composed of multiple single lithium batteries connected in series or in parallel to provide higher voltage, capacity, or current output capacity. Lithium battery packs have the advantages of high energy density, light weight, and long life, so they are widely used in various fields, including electric vehicles, energy storage systems, and portable devices. Before the multiple single lithium batteries are electrically connected as a whole, the multiple single lithium batteries need to be neatly and evenly arranged and fixed to ensure that there is no short circuit or collision between the single lithium batteries. Generally, in order to facilitate the stable electrical connection of multiple single lithium batteries, two upper and lower connecting brackets are usually used to first clamp and fix the multiple single lithium batteries. At this time, the multiple clamped lithium batteries become a whole, which is convenient for electrical connection between multiple single lithium batteries and subsequent packaging and sealing.

[0003] For example, the patent application with the prior art publication number CN117317390A relates to the field of lithium battery assembly technology, and in particular to a lithium-ion battery pack rapid splicing and assembly device, including an L-shaped workbench, a feeding unit and a plug-in unit. The intermittent transfer unit in the feeding unit regularly conveys rows of lithium battery packs. During the intermittent stop period, the material centering part, the combined pushing part and the docking transfer part process each row of lithium batteries passing through, and finally a row of lithium batteries is transformed from a horizontal state to a vertical state. Then, the transfer and plug-in part in the plug-in unit inserts this row of lithium batteries into the lower connecting bracket under the vertical guiding action of the auxiliary positioning part. Repeating several times can complete a round of lithium battery insertion work. The degree of automation is high, which greatly improves the assembly efficiency of multiple single lithium batteries. At the same time, the automated assembly process can reduce human errors and component damage, and ensure the quality and performance stability of the product.

[0004] The design of the transfer and insertion part in the above-mentioned prior art mainly focuses on the splicing and assembly of lithium batteries in a single lateral direction, which performs well when processing a single group or a few groups of lithium batteries. However, in practical applications, especially when constructing a rectangular lithium battery pack, problems become prominent. Since a rectangular lithium battery pack needs to be composed of a plurality of laterally arranged lithium battery cells connected in a vertical direction, therefore, if only the existing lateral transfer and insertion part is used for assembly, it is necessary to adjust the working direction or reposition each time a group of lateral lithium batteries is spliced, so as to carry out the splicing of the next group of lateral lithium batteries and then carry out the vertical connection. This multiple working coordination not only increases the complexity of the operation, but also significantly prolongs the overall assembly time, thereby affecting the production efficiency. To this end, the present application proposes a lithium-ion battery pack rapid splicing and assembly device and method thereof. Summary of the invention

[0005] The object of the present invention is to provide a lithium-ion battery pack rapid splicing assembly device and method thereof to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a lithium-ion battery pack rapid splicing and assembly device, comprising a base and a plurality of lithium-ion battery cells, the top of the base being provided with a battery storage plate for placing the plurality of lithium-ion battery cells, the top of the base being fixedly connected with a fixed pan-tilt platform, a movable plate being provided above the fixed pan-tilt platform, and a displacement component for driving the movable plate to move being provided on the top of the fixed pan-tilt platform, a plurality of clamping strips for clamping the lithium-ion battery cells being provided on one side of the movable plate, a plurality of extension blocks being provided on both sides of the plurality of clamping strips, a transmission plate being slidably connected inside the movable plate, a driving component for driving the plurality of clamping strips to move relative to each other being provided inside the transmission plate, a power component for driving the extension blocks to move being provided inside the plurality of clamping strips, and two battery protection frames for supporting the lithium-ion battery cells being provided above the base.

[0007] Preferably, the driving assembly includes a plurality of guide grooves opened inside the transmission plate, a plurality of rollers are rotatably connected in the plurality of guide grooves, a slider fixedly connected to a plurality of 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 the slider, a second cylinder is fixedly connected to one side of the movable plate, and an output end of the second cylinder extends to 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 to the inside of the clamp, one side of the air receiving cylinder is slidably connected to a transmission piston rod adapted thereto, the inside of the clamp is fixedly connected to a fixed frame for sliding connection of an extension block, one side of the extension block is rotatably connected to a crank, and the outer surface of the transmission piston rod is fixedly connected to a movable block rotatably connected to the crank.

[0009] Preferably, a plurality of the connecting plates are fixedly connected to the inside thereof with a gas cylinder, a gas cylinder piston rod adapted thereto is slidably connected to one side of the gas cylinder, a ventilation pipe is connected to the bottom of the gas cylinder, one end of the ventilation pipe extends away from the gas cylinder into the gas receiving cylinder, and a resistance block that can resist the transmission plate is fixedly connected to one end of the gas cylinder piston rod.

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

[0011] Preferably, the displacement assembly includes a second guide rail fixedly connected to the top of the fixed pan-tilt head, both ends of the movable plate are slidably connected with sliding shoes, and the sliding shoes are adapted to the second guide rail, the top of the sliding shoes is fixedly connected to a top frame, the top of the top frame is fixedly connected to a first cylinder, and 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 machine base, a third cylinder is fixedly connected to the top of the auxiliary frame, a clamp is fixedly connected to the output end of the third cylinder, a fourth cylinder is fixedly connected to the bottom of the machine base, and a limited position 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, rubber belts are fixedly connected to the outer surface of the clamping strip and to both sides of the plurality of fixing frames.

[0015] The present invention also provides a lithium-ion battery pack rapid assembly method, comprising the following steps:

[0016] S1, first driving the battery storage plate to move to transport a plurality of lithium-ion battery cells, and then opening the displacement assembly so that a plurality of clamping strips are respectively inserted between the plurality of lithium-ion battery cells;

[0017] S2, then push the transmission plate to move in the direction close to the clamping strip, so that the clamping strip approaches and clamps the multiple lithium-ion battery cells, and at the same time, when the transmission plate gradually approaches the clamping strip, it will drive the power assembly, so that the extension block will expand inside the clamping strip, thereby contacting the gap between the lithium-ion battery cells to form a fixation;

[0018] S3, then assembling a plurality of lithium-ion battery cells by bringing the two battery protection frames close to each other;

[0019] S4, then controlling the extension block to shrink inside the clamping bar, so that the power assembly is reset, and the restriction on the gaps between the multiple lithium-ion battery cells is released, and then the multiple clamping bars are controlled to move away from the lithium-ion battery cells.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The transmission plate is driven to move by the second cylinder, and the sliding mechanism of the roller in the guide groove can accurately and smoothly drive multiple clamps to approach each other, so as to effectively clamp the lithium-ion battery cells. This design is fast and accurate, greatly improving production efficiency, and the expansion mechanism of the extension block further enhances the stability of clamping. After the clamp clamps the battery cell, the extension block is expanded inside the rubber belt to fill the gap between the cells, thereby forming a more solid fixing effect. This design not only increases the contact area of ​​the clamp, but also improves the uniformity and stability of the clamp, and can adapt to lithium-ion battery cells of different sizes. By adjusting the spacing of the clamps, the clamping of battery cells of different sizes can be achieved. Various technologies such as pneumatic transmission and mechanical control realize intelligent control of the clamping and fixing process. By opening and closing the solenoid valve, the flow of gas can be easily controlled, thereby realizing precise control of the expansion and reset of the extension block.

[0022] 2. By setting up the displacement assembly, the position and height of the movable plate and the clamping strip on it can be flexibly adjusted. This adjustability enables 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 enables the clamping strip to move up and down, thereby adjusting the height position of the battery cell, which is crucial for the subsequent assembly and transportation process. Through the drive of the third and fourth cylinders, the two battery protection frames can approach each other and squeeze the battery cell to achieve a firm fixation. This fixing method is not only stable and reliable, but also can be completed quickly, improving production efficiency. The expansion and reset mechanism of the extension block further enhances the fixing effect. When the clamping strip clamps the battery cell, the extension block can fill the gap between the cells to form a tighter fixation. When the fixation needs to be released, the extension block can be quickly reset to facilitate the removal and replacement of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a first three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of a second three-dimensional structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the battery storage board in the present invention;

[0026] Figure 4 It is a structural schematic diagram of a fixed pan / tilt platform in the present invention;

[0027] Figure 5 It is a structural schematic diagram of the movable plate in the present invention;

[0028] Figure 6 It is a schematic diagram of the cross-sectional structure of the movable plate in the present invention;

[0029] Figure 7 It is a schematic diagram of the cross-sectional structure of the clamping strip in the present invention;

[0030] Figure 8 It is a structural schematic diagram of the slider in the present invention;

[0031] Fig. 9 For the present invention Figure 8 A schematic diagram of the structure enlargement in the middle;

[0032] Fig.10 It is a schematic diagram of the cross-sectional structure of the slider in the present invention;

[0033] Fig.11 For the present invention Fig.10 A magnified schematic diagram of the structure at B in the middle;

[0034] Fig.12 It is a structural schematic diagram of the fixing frame in the present invention;

[0035] Fig.13 It is a schematic diagram of the structure in which the battery storage plate is removed in the present invention.

[0036] In the figure: 100, base; 101, first guide rail; 102, battery storage board; 103, lithium-ion battery cell; 200, fixed pan head; 201, second guide rail; 202, sliding shoe; 203, top frame; 204, movable plate; 205, first cylinder; 300, clamping strip; 301, rubber belt; 302, slider; 303, second cylinder; 304, transmission plate; 305, guide groove; 306, connecting plate; 307, roller ; 308, air delivery cylinder; 309, air delivery piston rod; 310, return spring; 311, resistance block; 312, solenoid valve; 313, ventilation pipe; 314, air receiving cylinder; 315, transmission piston rod; 316, fixed 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, clamping claw. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figure 1, Figure 2 as well as Figure 3 The present invention provides a technical solution: a lithium-ion battery pack rapid splicing and assembly device, comprising a base 100 and a plurality of lithium-ion battery cells 103, a battery storage plate 102 for placing the plurality of lithium-ion battery cells 103 is arranged on the top of the base 100, a fixed pan head 200 is fixedly connected to the top of the base 100, a movable plate 204 is arranged above the fixed pan head 200, 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 inside the movable plate 204, a driving component for driving the plurality of clamping strips 300 to move relative to each other is arranged inside the transmission plate 304, the driving component can be effectively driven to approach each other and contact the plurality of lithium-ion battery cells 103 by setting the driving component, so as to clamp the lithium-ion battery cells 103, and the plurality of extension blocks 317 can be unfolded and located in the gaps between the plurality of lithium-ion battery cells 103 and fixed.

[0039] For further information, see Figure 4 , Figure 5 as well as Figure 6 The driving assembly includes a plurality of guide grooves 305 provided inside the transmission plate 304, the plurality of guide grooves 305 are symmetrically provided, a plurality of rollers 307 are rotatably connected in the plurality of guide grooves 305, a slider 302 fixedly connected to a plurality of clamping strips 300 is slidably connected to one side of the movable plate 204, a connecting plate 306 rotatably connected to the rollers 307 is fixedly connected to one side of the slider 302, a second cylinder 303 is fixedly connected to one side of the movable plate 204, an output end of the second cylinder 303 extends to the inside of the movable plate 204 and is fixedly connected to the transmission plate 304, and the transmission plate 304 can be driven to move by setting the second cylinder 303 so that the plurality of clamping strips 300 are close to or away from each other, thereby being suitable for clamping lithium-ion battery cells 103 of different sizes.

[0040] For further information, see Fig.10 , Fig.11 as well as Fig.12A power assembly for driving the extension block 317 to move is disposed inside the plurality of clamps 300, and the power assembly includes an air receiving cylinder 314 fixedly connected to the inside of the clamp 300, and a transmission piston rod 315 adapted thereto 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 clamp 300, a crank 318 is rotatably connected to one side of the extension block 317, and a movable block 319 rotatably connected to the crank 318 is fixedly connected to the outer surface of the transmission piston rod 315, and the power assembly can drive the extension block 317 to expand and be located in the gap between the plurality of lithium-ion battery cells 103, thereby increasing the contact area with the lithium-ion battery cells 103 and increasing the clamping force.

[0041] Among them, see Figure 7 , Figure 8 as well as Fig. 9 The interior of the plurality of connecting plates 306 is fixedly connected with a gas delivery cylinder 308, one side of the gas delivery cylinder 308 is slidably connected with a gas delivery piston rod 309 adapted thereto, the bottom of the gas delivery cylinder 308 is connected with a vent pipe 313, one end of the vent pipe 313 away from the gas delivery cylinder 308 extends into the gas receiving cylinder 314, one end of the gas delivery piston rod 309 is fixedly connected with a resistance block 311 that can resist the transmission plate 304, the outer surface of the gas delivery piston rod 309 is sleeved with a return spring 310 for its return, and the top of the gas delivery cylinder 308 is connected to the gas delivery cylinder 308. The outer surface of the clamp 300 is connected to a solenoid valve 312 and is fixedly connected to rubber belts 301 on both sides of multiple fixed frames 316. The interference block 311 is provided to allow the gas delivery piston rod 309 to slide inside the gas delivery cylinder 308, so that the gas in the gas delivery cylinder 308 is transported to the inside of the gas receiving cylinder 314, so that the transmission piston rod 315 slides and drives the extension block 317 to move. At the same time, the interference block 311 can interfere with the transmission plate 304 so that the clamp 300 clamps each other and drives the multiple extension blocks 317 to expand.

[0042] 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 cylinder 308 to leak out, so that the gas in the gas receiving cylinder 314 can flow back through the ventilation pipe 313 and be discharged, thereby allowing 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, thereby facilitating the removal of the clamp 300 from the multiple lithium-ion battery cells 103.

[0043] Specifically, the second cylinder 303 is turned on to push the transmission plate 304 to move in the direction of the clamping strip 300, thereby driving the multiple rollers 307 to slide in the guide groove 305, and then driving the multiple sliders 302 to approach each other, so that the clamping strip 300 approaches to clamp the multiple lithium-ion battery cells 103, and at the same time, when the transmission plate 304 gradually approaches the clamping strip 300, it contacts the abutment block 311 so that it applies pressure to the gas delivery piston rod 309, thereby driving its piston end to move in the gas delivery cylinder 308 to drive The gas in the movable gas cylinder 308 is transported to the gas receiving cylinder 314 through the ventilation pipe 313. At this time, the gas in the gas 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 driving the crank 318 to tilt and push the connected extension blocks 317 away from each other, so that the extension blocks 317 are unfolded inside the rubber belt 301 and expand, thereby contacting the gaps between each lithium-ion battery cell 103 to form a fixation.

[0044] In summary, by driving the transmission plate 304 to move through the second cylinder 303, and utilizing the sliding mechanism of the roller 307 in the guide groove 305, the multiple clamping strips 300 can be accurately and smoothly driven to approach each other, thereby effectively clamping the lithium-ion battery cell 103. This design is both fast and accurate, greatly improving production efficiency, and the expansion mechanism of the extension block 317 further enhances the stability of the clamping. After the clamping strip 300 clamps the battery cell, the extension block 317 is expanded inside the rubber belt to fill the gap between the cells, thereby forming a more solid 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, the clamping of battery cells of different sizes can be achieved. Various technologies such as pneumatic transmission and mechanical control realize intelligent control of the clamping and fixing process. By opening and closing the solenoid valve 312, the flow of gas can be conveniently controlled, thereby realizing precise control of the expansion and resetting of the extension block 317.

[0045] Example 2: Please refer to Figure 2 , Figure 4 as well as Fig.13The present invention also provides a technical solution, which is different from the technical solution of the first embodiment: a lithium-ion battery pack rapid splicing and assembly device, a displacement component for driving the movable plate 204 to move is arranged on the top of the fixed gimbal 200, and 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 with sliding shoes 202, and the sliding shoes 202 are adapted to the second guide rail 201, the top of the sliding shoe 202 is fixedly connected with a top frame 203, the top of the top frame 203 is fixedly connected with a first cylinder 205, and 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 shoe 202 to move, thereby driving the movable plate 204 to generate displacement, thereby adjusting the position of multiple clamping strips 300, and by setting the first cylinder 205, the movable plate 204 can be driven to move up and down, thereby adjusting the height of the multiple clamping strips 300, thereby facilitating the adjustment of the height position of multiple lithium-ion battery cells 103.

[0046] Furthermore, two battery protection frames 400 for supporting lithium-ion battery cells 103 are arranged above the machine base 100, 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 clamp 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, an output end of the fourth cylinder 403 is fixedly connected to a limited position seat 404, and a first guide rail 101 for moving the battery storage plate 102 is fixedly connected to the top of the machine base 100, through A battery protection frame 400 is provided to support and protect a plurality of lithium-ion battery cells 103, and the clamp 405 can support and fix a battery protection frame 400, and a battery protection frame 400 can be placed on the top of the limit seat 404, and 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 to squeeze a plurality of lithium-ion battery cells 103 so as to fix them, and at the same time, the battery storage plate 102 can store a large number of lithium-ion battery cells 103, and adapt to the first guide rail 101 to drive the battery storage plate 102 to move.

[0047] Specifically, the first cylinder 205 is then driven to start and the movable plate 204 is driven to move upward so that the multiple clamping strips 300 clamp the multiple lithium-ion battery cells 103 and move them upward to separate them from the first guide rail 101, and the second guide rail 201 is driven to reset the sliding shoe 202, and then the two battery protection frames 400 are placed on the limit seat 404 and the clamping claw 405 respectively, and then the third cylinder 402 and the fourth cylinder 403 are driven to make the two battery protection frames 400 approach each other to assemble the multiple lithium-ion battery cells 103, and then the multiple solenoid valves 312 are opened to allow the gas in the gas cylinder 308 to leak out, so that the transmission piston rod 315 is reset and the multiple extension blocks 317 are driven to reset, thereby releasing the limit on the gaps of the multiple lithium-ion battery cells 103, and then the second guide rail 201 is controlled to drive the multiple clamping strips 300 away from the lithium-ion battery cells 103, and then the fourth cylinder 403 is opened to contract so that the limit seat 404 moves downward to transport the assembled battery pack out of the base 100.

[0048] In summary, by setting a displacement component, the position and height of the movable plate 204 and the clamping strip 300 thereon can be flexibly adjusted. This adjustability enables the system to easily adapt to battery cells of different sizes and arrangements, thereby improving the versatility and flexibility of the equipment. The drive of the first cylinder 205 enables the clamping strip 300 to move up and down, thereby adjusting the height position of the battery cell, which is crucial for the subsequent assembly and transportation process. Through the drive of the third cylinder 402 and the fourth cylinder 403, the two battery protection frames 400 can approach each other and squeeze the battery cell to achieve a firm fixation. This fixing method is not only stable and reliable, but also can be completed quickly, which improves production efficiency. The expansion and reset mechanism of the extension block 317 further enhances the fixing effect. When the clamping strip 300 clamps the battery cell, the extension block 317 can fill the gap between the cells to form a tighter fixation. When the fixation needs to be released, the extension block 317 can be quickly reset to facilitate the removal and replacement of the battery cell.

[0049] Example 3: Please refer to Figures 1 to 13 The present invention also provides a technical solution, which is different from the technical solution of the first embodiment: a lithium-ion battery pack rapid splicing and assembly method, comprising the following steps:

[0050] S1, firstly, the first guide rail 101 is opened to drive the battery storage plate 102 to move and transport a plurality of lithium-ion battery cells 103, and 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 a plurality of clamping strips 300 are respectively inserted between the plurality of lithium-ion battery cells 103;

[0051] S2, then the second cylinder 303 is turned on to push the transmission plate 304 to move in the direction of the clamping strip 300, thereby driving the multiple rollers 307 to slide in the guide groove 305, and then driving the multiple sliders 302 to move closer to each other, so that the clamping strip 300 is close to clamp the multiple lithium-ion battery cells 103, and at the same time, when the transmission plate 304 gradually approaches the clamping strip 300, it will contact the resistance block 311 so that it applies pressure on the gas delivery piston rod 309, thereby driving its piston end to move in the gas delivery cylinder 308 to drive The gas in the gas delivery cylinder 308 is delivered to the gas receiving cylinder 314 through the vent pipe 313. At this time, the gas in the gas 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 the multiple movable blocks 319 to move synchronously, thereby driving the crank 318 to tilt and push the extension blocks 317 connected thereto away from each other, so that the extension blocks 317 are unfolded inside the rubber belt 301 and expand, thereby contacting the gaps between the lithium-ion battery cells 103 to form a fixation;

[0052] S3, then drive and start the first cylinder 205 to drive the movable plate 204 to move upward so that the multiple clamping strips 300 clamp the multiple lithium-ion battery cells 103 and move them upward to separate them from the first guide rail 101, and at the same time drive the second guide rail 201 to reset the sliding shoe 202, and then place the two battery protection frames 400 on the limit seat 404 and the clamping claw 405 respectively, and then drive the third cylinder 402 and the fourth cylinder 403 to make the two battery protection frames 400 approach each other to assemble the multiple lithium-ion battery cells 103;

[0053] S4, then open multiple solenoid valves 312 to allow the gas in the gas cylinder 308 to leak out, so that the transmission piston rod 315 is reset and drives the multiple extension blocks 317 to reset, thereby releasing the limit on the gaps between the multiple lithium-ion battery cells 103, and then control the second guide rail 201 to drive the multiple clamping strips 300 away from the lithium-ion battery cells 103, and then open the fourth cylinder 403 to contract so that the limit seat 404 moves down to transport the assembled battery pack out of the base 100.

[0054] In summary, by mechanically clamping and fixing the lithium-ion battery cells, the risk of damage caused by vibration or misoperation during transportation and assembly is reduced. The extension block 317 inside the rubber belt is used to fill the gaps between the cells, which further enhances the structural stability and shock resistance of the battery pack. The extension block 317 is driven to expand to fix the battery cells by pneumatic transmission. This design is both novel and efficient. Pneumatic transmission has the characteristics of fast response, strong force and easy control. The expansion and contraction of the extension block 317 in the rubber belt 301 not only realizes the precise filling of the gaps between the battery cells, but also avoids the pressure concentration problem that may be caused by traditional rigid clamps, protecting the battery cells from damage. By adjusting the expansion 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 realized. This design makes the entire process more flexible and can adapt to battery cells and protection frames of different sizes and specifications.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present 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 disposed 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 disposed inside the transmission plate (304), a power assembly for driving the extension blocks (317) to move is disposed inside the plurality of clamping strips (300), and two battery protection racks (400) for supporting lithium-ion battery cells (103) are disposed above the machine base (100); The driving assembly comprises a plurality of guide grooves (305) provided inside the transmission plate (304), a plurality of rollers (307) being rotatably connected inside 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); 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).

2. A lithium-ion battery pack rapid splicing and assembly device according to claim 1, 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).

3. A lithium-ion battery pack rapid splicing and assembly device according to claim 2, 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).

4. The 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).

5. The 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).

6. A 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).

7. A lithium-ion battery pack rapid splicing and assembly device according to claim 1, 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).

8. 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 7, 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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