A lithium battery module automatic packaging and pressing device

Abstract

The present invention discloses an automatic packing and compacting device for lithium battery modules, belonging to the technical field of lithium battery module production. An automatic packing and compacting device for lithium battery modules comprises a module frame for assembling multiple lithium batteries, a tray mechanism installed at one end of the module frame to hold up multiple lithium batteries, a compacting mechanism is provided at the other end of the module frame, multiple lithium battery groups slide into the module frame in sequence from the side of the compacting mechanism and are compacted by the compacting mechanism, bracket installation mechanisms are symmetrically distributed on both sides of the module frame, and the bracket installation mechanisms are used for packaging and fixing multiple lithium batteries after compaction; a gap reservation mechanism is installed on the side of the module frame staggered from the bracket installation mechanism, and the bottom end of the gap reservation mechanism extends to the inside of the module frame, and when multiple lithium batteries slide into the module frame, the gap reservation mechanism automatically penetrates into the module frame in sequence to separate multiple lithium batteries in layers.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery module production, and in particular to an automatic packing and pressing device for lithium battery modules. Background Art

[0002] The lithium battery module packaging process generally involves combining multiple lithium battery packs into modules, and then installing battery connectors, battery protection boards, etc. after compaction.

[0003] In some installation processes, multiple lithium battery blocks are packaged by placing one end of each block into a battery protection board in turn. The battery protection board provides gaps for multiple lithium battery blocks. There will be a certain gap between the lithium battery blocks in the battery module, which can provide space for the lithium battery to expand and accelerate the heat dissipation of the lithium battery. However, when the other ends of multiple lithium batteries are fixed to the battery connector, there will be deviations in the docking fixation, affecting the installation accuracy. The use of a compacting process can allow multiple lithium battery packs to be close together for easy installation and precise fixation of the connector.

[0004] The existing patent document with publication number CN110364765A discloses an automatic pressing device for lithium battery module packaging, which uses a first positioning bar, a second positioning bar and a positioning plate to limit the three sides of the battery module, and uses a driving component and a pressing plate to press the battery module to compress the length of the battery module to the process specification. Although there are many beneficial effects, there is a lack of reserved gaps for adjacent lithium batteries when achieving stable compression. Although it is a more efficient and fast packaging production of lithium batteries, there is no space for lithium battery expansion and heat dissipation. In the research on the packaging production process based on lithium battery modules, we designed a processing equipment that can quickly position multiple lithium batteries and automatically fill the spacers between adjacent lithium batteries. It can reserve space for lithium batteries when the lithium batteries are compressed, and automatically remove the spacers after the lithium battery module is formed. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the gaps reserved between lithium batteries affect the expansion and heat dissipation of lithium batteries during the existing lithium battery module packaging and compacting process, and to propose an automatic packaging and compacting device for lithium battery modules.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A lithium battery module automatic packaging and compacting device comprises a module frame for assembling multiple lithium batteries, a tray mechanism installed at one end of the module frame to hold up the multiple lithium batteries, a compacting mechanism is provided at the other end of the module frame, multiple lithium battery groups slide into the module frame in sequence from the side of the compacting mechanism and are compacted by the compacting mechanism, bracket mounting mechanisms are symmetrically distributed on both sides of the module frame, and the bracket mounting mechanisms are used for packaging and fixing multiple lithium batteries after compaction; a gap reservation mechanism is installed on the side of the module frame staggered from the bracket mounting mechanism, and the bottom end of the gap reservation mechanism extends to the inside of the module frame, and when multiple lithium batteries slide into the module frame, the gap reservation mechanism automatically penetrates into the module frame in sequence to separate the multiple lithium batteries in layers.

[0008] Preferably, the gap reservation mechanism includes a support frame that is controlled by a driver to move away from or close to the module frame, a rotating component that is slidably installed inside the support frame and can rotate, multiple rotating components are connected in series with each other, and a partition plate that can be inserted into the module frame is provided at the end of the rotating component, and an elastic reset component that passes through multiple rotating components is provided inside the support frame.

[0009] Preferably, a slide groove for sliding a plurality of rotating components is installed inside the support frame, and a first limiting hole is opened on the lower side of the rotating component in the slide groove, and an elastic member protruding outward and supporting the rotating component is installed inside the first limiting hole.

[0010] Preferably, the elastic member includes a stopper that holds up the rotating assembly, a rotating shaft that passes through the end of the stopper and is fixedly connected thereto, both ends of the rotating shaft are connected to the back of the slide slot through a fixing seat, and the rotating shaft is rotatably connected to the fixing seat through a coil spring.

[0011] Preferably, the rotating assembly includes a support seat that penetrates into the sliding groove and slides with the support seat, and a limiting tube is installed on the support seat, and the limiting groove is opened inside the limiting tube.

[0012] Preferably, the rotating assembly further comprises a guide rod, the guide rod passes through the limiting tube and is slidably engaged therewith, and a limiting piece protrudes outwardly from a side edge of the guide rod and penetrates into the limiting groove.

[0013] Preferably, one end of the guide rod is circumferentially evenly provided with a plurality of limit rods, and the other end is circumferentially evenly provided with second limit holes that can be matched with the limit rods.

[0014] Preferably, the guide rod located at the bottom is connected and fixed to the limiting tube.

[0015] Preferably, the elastic reset assembly includes a sliding rod penetrating a plurality of guide rods, and a spring connected to a support frame is connected to the top end of the sliding rod.

[0016] Preferably, the module frame includes four support rods with rectangular parts, the module frame is inclined or vertically arranged, and after the lithium battery automatically slides into the module frame, its end faces are connected to the outside, and the tray mechanism is installed at the bottom of the module frame to support multiple lithium batteries to prevent them from sliding out before compacting and packaging.

[0017] Compared with the prior art, the present invention provides a lithium battery module automatic packaging and pressing device, which has the following beneficial effects:

[0018] (1) The present invention sets a gap reservation mechanism on the side of the module frame, and slides and arranges a plurality of rotating components on the support frame of the gap reservation mechanism in an end-to-end manner, and a partition plate is fixed on each rotating component, so that the plurality of partition plates on the upper side are parallel and perpendicular to the partition plates at the bottom, and the partition plates at the bottom are inserted into the module frame, and the partition plates at the bottom are squeezed by sliding in the lithium battery, so that the adjacent partition plates on the upper layer are triggered to rotate and penetrate into the module frame, and the partition plates are automatically placed between the adjacent lithium batteries, so that the lithium batteries can be compressed and packed, and there is space for expansion and heat dissipation.

[0019] (2) The present invention provides a module frame composed of four brackets, so that multiple lithium batteries can enter the lithium battery in sequence from one end of the module frame. After the lithium batteries enter the module frame, all end faces of the lithium batteries are evenly connected to the outside. A tray mechanism is arranged at one end of the module frame to hold up multiple lithium batteries to complete stacking, and can automatically remove them after the battery module is packaged. A pressing mechanism is arranged at one end of the module frame where the lithium batteries enter the lithium battery. After multiple lithium batteries in each group enter the module frame, the pressing mechanism is used to automatically press and tighten them for easy packaging. Bracket installation mechanisms are arranged on both sides of the module frame symmetrically to achieve combined packaging and fixing after the lithium batteries are pressed. The present invention can complete stacking, pressing, and packaging into groups inside the module frame, which can shorten the packaging process of lithium battery modules and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the gap reservation mechanism of the present invention after being pressed down by a lithium battery;

[0022] Figure 3 It is a schematic diagram of the initial state structure of the gap reservation mechanism of the present invention;

[0023] Figure 4 It is a schematic diagram of the internal structure of the support frame after being pressed down by a lithium battery of the present invention;

[0024] Figure 5 This is a schematic diagram of the initial state structure of the internal components of the support frame of the present invention;

[0025] Figure 6It is a schematic diagram of the disassembly structure of the slideway and the elastic member of the present invention;

[0026] Figure 7 It is a schematic diagram of the back side of the structural chute of the present invention;

[0027] Figure 8 It is a schematic diagram of the disassembled structure of the rear rotating assembly of the guide rod side section of the present invention.

[0028] Explanation of figure numbers: 100, module frame; 200, tray mechanism; 300, clamping mechanism; 400, bracket installation mechanism; 500, gap reservation mechanism; 600, support frame; 601, slide groove; 602, first limiting hole; 603, elastic member; 6031, stopper; 6032, rotating shaft; 6033, fixed seat; 700, rotating assembly; 701, support seat; 702, limiting tube; 703, limiting groove; 704, guide rod; 705, limiting member; 706, limiting rod; 707, second limiting hole; 800, partition plate; 900, elastic reset assembly; 901, slide rod; 902, spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] Example:

[0032] See also Figure 1, an automatic packing and pressing device for lithium battery modules, comprising a module frame 100 for assembling multiple lithium batteries, a tray mechanism 200 installed at one end of the module frame 100 to hold up multiple lithium batteries, a pressing mechanism 300 is provided at the other end of the module frame 100, multiple lithium battery groups slide into the module frame 100 from the side of the pressing mechanism 300 in sequence and are compacted by the pressing mechanism 300, and bracket mounting mechanisms 400 are symmetrically distributed on both sides of the module frame 100, and the bracket mounting mechanisms 400 are used for packing and fixing multiple lithium batteries after compaction; a gap reservation mechanism 500 is installed on the side of the module frame 100 staggered from the bracket mounting mechanism 400, and the bottom end of the gap reservation mechanism 500 extends to the inside of the module frame 100, and when multiple lithium batteries slide into the module frame 100, the gap reservation mechanism 500 automatically penetrates into the module frame 100 in sequence to separate the multiple lithium batteries in layers.

[0033] Some implementation methods of the present application are described in detail below with reference to the accompanying drawings:

[0034] See also Figure 1 In this embodiment, a module frame 100 is used to hold multiple lithium batteries, and the lithium batteries are pressed and packaged on the module frame 100. The module frame 100 has four rectangular support rods for holding rectangular lithium batteries. The module frame 100 is placed vertically, and when the lithium battery slides into the module frame 100, its six end faces are connected to the outside. During the implementation process, a tray mechanism 200 is set at the bottom end of the module frame 100, and the multiple lithium batteries entering the module frame 100 will be held up by the tray mechanism 200. The top of the module frame 100 is used for the lithium batteries to slide in, and a pressing mechanism 300 is arranged above the module frame 100. After all the multiple lithium batteries in each group enter the module frame 100, the pressing mechanism 300 will move down to press the multiple lithium batteries.

[0035] Among them, the tray mechanism 200 and the clamping mechanism 300 can both move up and down. The clamping mechanism 300 is initially away from the module frame 100 and needs to be compressed and packaged, and then it descends to work; the tray mechanism 200 is initially in contact with the module frame 100. After completing the compression and packaging, it moves down with the packaged lithium battery module and leaves the module frame 100.

[0036] The support mounting mechanisms 400 are arranged on two symmetrical sides of the module frame 100. After a plurality of lithium batteries are pressed, the support mounting mechanisms 400 fix the lithium battery mounting brackets from both sides to form a lithium battery module.

[0037] Gap reservation mechanisms 500 are distributed on the other two sides of the module frame 100. The gap reservation mechanisms 500 are distributed between two adjacent lithium batteries, so that the multiple lithium batteries in each group are compressed while having a certain gap. After the bracket is installed and fixed, the gap reservation mechanism 500 is pulled out from the middle of the lithium battery. The small gap reserved between the lithium batteries can provide an appropriate amount of space for the heat dissipation and expansion of the lithium batteries. In addition, the bracket is also designed with slots, and gaps are reserved in advance between multiple lithium batteries to facilitate installation and fixation.

[0038] See also Figure 1-4 In this embodiment, the gap reservation mechanism 500 is composed of a support frame 600, a rotating assembly 700, a partition plate 800, an elastic reset assembly 900, etc. The support frame 600 is installed on the side of the module frame 100, and is controlled by a driver to move away from or close to the module frame 100. A plurality of rotating assemblies 700 connected to each other are vertically installed inside the support frame 600. A partition plate 800 is installed at the end of each rotating assembly 700. The partition plate 800 is located outside the module frame 100 and enters the module frame 100 after rotating 90° with the rotating assembly 700, so as to be filled between two adjacent lithium batteries. The elastic reset assembly 900 is installed at the top of the support frame 600 and passes through the plurality of rotating assemblies 700 downward.

[0039] See also Figure 4 , 5 8. The rotating assembly 700 is composed of a support seat 701, a stop tube 702, a guide rod 704, etc. One end of the support seat 701 is connected to the support frame 600 and slides with it, and the other end is sleeved on the stop tube 702. Two arc-shaped stop grooves 703 are symmetrically opened on the side wall of the stop tube 702. The guide rod 704 passes through the stop tube 702 and slides with it. There are two stop members 705 on the guide rod 704 that penetrate into the stop groove 703. The longitudinal height of the stop groove 703 is the vertical sliding range of the guide rod 704. At the same time, the stop groove 703 has a 90° deflection angle in the horizontal direction. When the guide rod 704 moves from the highest point to the lowest point, the stop member 705 slides from the highest point of the stop groove 703 to the lowest end, and the guide rod 704 and the stop member 705 complete a 90° rotation together.

[0040] The partition plate 800 is fixed on the side of the guide rod 704 near the top, and the partition plate 800 moves downward and rotates along with the guide rod 704. By giving the guide rod 704 a downward pulling force, the partition plate 800 can be transferred from the side of the module frame 100 into the inside of the module frame 100.

[0041] In addition, a plurality of second limiting holes 707 are provided at equal intervals in a circular shape at the bottom end of the guide rod 704, a groove is provided at the top of the guide rod 704, and a filling block is rotatably connected inside the groove, and a plurality of limiting rods 706 are evenly distributed circumferentially on the filling block, so that the limiting rod 706 and the guide rod 704 are in a rotationally connected relationship, and the end of the limiting rod 706 is embedded in the second limiting hole 707 and interacts with it and cannot be removed from the second limiting hole 707.

[0042] The height of the limiting rod 706 is greater than or equal to the longitudinal height of the limiting groove 703 .

[0043] The size of the part where each support seat 701 is connected to the support frame 600 is different, so that the highest position of each support seat 701 is fixed and different. In the initial process of the two guide rods 704 cooperating with each other, under the upward pulling action of the elastic reset assembly 900, the two support seats 701 move up to the highest point, and the two guide rods 704 are both at the highest point where the movement of the support seat 701 is limited. The two guide rods 704 fit each other, and the limit rod 706 of the lower guide rod 704 completely penetrates the second limit hole 707 of the upper guide rod 704. The lower guide rod 704 is forced to move downward and completes the rotation during the downward movement. When the downward movement distance is close to the height of the limit rod 706, the upper guide rod 704 is stationary. After the downward movement distance exceeds the height of the limit rod 706, the upper guide rod 704 is forced to move downward and rotate.

[0044] In the embodiment, the number of guide rods 704 is greater than the number of lithium batteries in each group. The guide rod 704 at the bottom is fixedly connected to the limit tube 702. When the multiple guide rods 704 are pulled up and stacked together by the elastic reset assembly 900, the multiple partition plates 800 at the top are parallel to each other and perpendicular to the partition plates 800 at the bottom. When the gap reservation mechanism 500 approaches the module frame 100, the partition plates 800 at the bottom will penetrate into the module frame 100.

[0045] After the partition plate 800 at the bottom penetrates into the module frame 100, the distance from the surface of the tray mechanism 200 is equal to the sum of the height of the limit rod 706 and the longitudinal height of the limit groove 703. After the first lithium battery slides into the module frame 100, it first contacts the partition plate 800 at the bottom and falls into the tray mechanism 200 together with it. After the partition plate 800 at the bottom contacts the tray mechanism 200, the guide rod 704 in the support seat 701 on the adjacent upper side moves down by the height of the limit groove 703 and the partition plate 800 rotates 90 degrees to enter the module frame 100. After that, each lithium battery will press down the partition plate 800 after sliding into the module frame 100 and allow the adjacent upper partition plate 800 to rotate into the module frame 100.

[0046] After the bottom partition plate 800 is triggered for the first time, the partition plates 800 are sequentially and orderly transferred into the module frame 100 and distributed between two adjacent lithium batteries, thereby reserving gaps between the lithium batteries during packaging.

[0047] Under the control of the driver, the gap reservation mechanism 500 is away from the module frame 100, and the multiple partition plates 800 are all pulled out from the middle of the lithium battery. After being separated from the lithium battery, the multiple rotating components 700 are pulled up by the elastic reset component 900 to restore the initial state and can be reused.

[0048] In the embodiment, the elastic reset assembly 900 is composed of a slide bar 901, a spring 902, etc. The slide bar 901 is connected to the top of the support frame 600 through the spring 902. The bottom end of the slide bar 901 passes through the multiple rotating assemblies 700 downward and is slidably connected thereto. In a natural state, the multiple support seats 701 are stacked together in sequence under the upward pulling force of the spring 902. When the partition plate 800 at the bottom is pressed down and falls onto the tray mechanism 200, the spring 902 is stretched and deformed, and the slide bar 901 will move downward with the partition plate 800 at the bottom. After the partition plate 800 is separated from the lithium battery, the spring 902 pulls all the rotating assemblies 700 back to the initial state through the slide bar 901.

[0049] See also Figure 4 , 5 , 6, 7, in this embodiment, a slide groove 601 is fixed on the support frame 600, and the ends of the support seats 701 of the multiple rotating components 700 penetrate into the slide groove 601 and slide with it. When the multiple rotating components 700 are constrained by the elastic reset component 900, an elastic member 603 is also provided below each support seat 701 in the slide groove 601, and each elastic member 603 independently supports the rotating component 700 above it. After the elastic reset component 900 is pulled down and deformed by the partition plate 800 at the bottom, the rotating component 700 on the upper side can rely on the elastic member 603 to support stability and prevent it from sliding down.

[0050] Specifically, in the initial state, the slide 601 has a first limiting hole 602 at the lower side of each support seat 701, and the slide 601 is equipped with an elastic member 603. The elastic member 603 extends to the lower end of the support seat 701 through the first limiting hole 602. The elastic member 603 is composed of a stopper 6031, a rotating shaft 6032, a fixing seat 6033, etc. The stopper 6031 is arranged in a fan shape, and the rotating shaft 6032 passes through the axis position of the stopper 6031 and is fixed thereto. The stopper 6031 is driven to rotate by the rotating shaft 6032, and the rotating shaft 6032 is installed on the back of the slide 601 through the fixing seat 6033. The rotating shaft 6032 is rotatably connected with the fixing seat 6033 through a coil spring, and the coil spring gives the rotating shaft 6032 a rotational force, so that the stopper 6031 passes through the first limiting hole 602 and lifts the support seat 701.

[0051] When the stopper 6031 is inside the slide groove 601, its top surface is horizontal and its bottom surface is arc-shaped. When the rotating assembly 700 is subjected to the pressure of the lithium battery, the stopper 6031 is unable to support and is squeezed back to the back of the slide groove 601, and resets after the rotating assembly 700 slides away. Thereafter, when the elastic reset assembly 900 lifts the rotating assembly 700 upward to reset, the rotating assembly 700 squeezes the stopper 6031 from bottom to top to retract it to the back of the slide groove 601, and lifts it up again after the rotating assembly 700 resets.

[0052] It should be noted that the fixing seat 6033 is only in contact with the back of the slide groove 601, and the elastic member 603 as a whole can slide horizontally under force and return to its original position after the external force is removed.

[0053] In some embodiments, the module frame 100 can be arranged in an inclined structure. The inclined or vertical state of the module frame 100 can make the lithium batteries automatically slide to the bottom. The sliding multiple lithium batteries can respectively apply pressure to the gap reservation mechanism 500 to allow the partition plate 800 to be rotated into the module frame 100 in turn, thereby separating the two adjacent lithium batteries by a certain distance.

[0054] In some embodiments, the module frame 100 can be arranged horizontally, so that only five sides of the lithium battery are connected to the outside, so the gap reservation mechanism 500 is only arranged on one side, and an external force needs to be applied to each lithium battery to slide toward the tray mechanism 200.

[0055] When the module rack 100 is tilted or horizontally arranged, a holding mechanism will be installed on the surface of the tray mechanism 200 to prevent the packaged lithium battery module from falling off when it is removed.

[0056] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lithium battery module automatic packaging and pressing device, characterized in that: The invention comprises a module frame (100) for assembling a plurality of lithium batteries, a tray mechanism (200) installed at one end of the module frame (100) for supporting the plurality of lithium batteries, a pressing mechanism (300) being provided at the other end of the module frame (100), the plurality of lithium battery packs being sequentially slid into the module frame (100) from the side of the pressing mechanism (300) and being pressed by the pressing mechanism (300), and bracket mounting mechanisms (400) being symmetrically distributed on both sides of the module frame (100), the bracket mounting mechanisms (400) being used for packaging and fixing the plurality of lithium batteries after being pressed; The module frame (100) is provided with a gap reservation mechanism (500) at a side thereof that is staggered from the bracket installation mechanism (400); the bottom end of the gap reservation mechanism (500) extends into the module frame (100); when a plurality of lithium batteries slide into the module frame (100), the gap reservation mechanism (500) automatically penetrates into the module frame (100) in sequence to separate the plurality of lithium batteries into layers; the gap reservation mechanism (500) comprises a support frame (600) that is controlled by a driver to move away from or close to the module frame (100); and a support frame (600) that is slidably installed on the support frame (600). 0) and a rotating assembly (700) capable of rotating, a plurality of the rotating assemblies (700) are connected in series, a partition plate (800) is provided at the end of the rotating assembly (700) and can be inserted into the module frame (100), an elastic reset assembly (900) is provided inside the support frame (600) and passes through the plurality of rotating assemblies (700), a slide groove (601) for sliding the plurality of rotating assemblies (700) is installed inside the support frame (600), and the slide groove (601) is provided with a first opening on the lower side of the rotating assembly (700) The limiting hole (602) is provided with an elastic member (603) protruding outward and supporting the rotating assembly (700) inside the first limiting hole (602), the elastic member (603) comprising a stopper (6031) supporting the rotating assembly (700), and a rotating shaft (6032) passing through the end of the stopper (6031) and connected and fixed thereto, the two ends of the rotating shaft (6032) being connected to the back of the slide groove (601) through a fixing seat (6033), the rotating shaft (6032) being rotatably connected to the fixing seat (6033) through a coil spring, and the The elastic reset assembly (900) comprises a slide bar (901) penetrating through a plurality of guide bars (704); the top end of the slide bar (901) is connected to a spring (902) connected to a support frame (600); the module frame (100) comprises four support bars with rectangular portions; the module frame (100) is arranged in an inclined or vertical manner; after the lithium battery automatically slides into the module frame (100), its end faces are connected to the outside; the tray mechanism (200) is installed at the bottom end of the module frame (100) to lift the plurality of lithium batteries to prevent them from sliding out before being compressed and packaged.

2. The automatic packing and pressing device for lithium battery modules according to claim 1 is characterized in that: The rotating assembly (700) comprises a support seat (701) inserted into the slide groove (601) and slidably matched therewith, a limiting tube (702) being installed on the support seat (701), and a limiting groove (703) is provided in the limiting tube (702).

3. The automatic packing and pressing device for lithium battery modules according to claim 2 is characterized in that: The rotating assembly (700) further comprises a guide rod (704), the guide rod (704) passing through the limiting tube (702) and slidingly engaging therewith, and a limiting piece (705) protruding outwards from a side edge of the guide rod (704) and penetrating into the limiting groove (703).

4. The automatic packing and pressing device for lithium battery modules according to claim 3 is characterized in that: One end of the guide rod (704) is evenly distributed with a plurality of limit rods (706) in the circumferential direction, and the other end is evenly distributed with second limit holes (707) that can be matched with the limit rods (706).

5. The automatic packing and pressing device for lithium battery modules according to claim 4 is characterized in that: The guide rod (704) located at the bottom is connected and fixed to the limiting tube (702).

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