Battery pack moving device

Abstract

The utility model discloses a kind of battery pack moving device, it is related to energy storage container technology field, wherein, battery pack moving device includes rack, bearing mechanism and lifting mechanism, rack includes the guide rail of extension setting along vertical direction;Bearing mechanism includes first bearing seat, second bearing seat and push-pull component, first bearing seat is slidably connected with guide rail, second bearing seat is slidably arranged in first bearing seat along first direction, push-pull component is slidably arranged in second bearing seat along second direction, vertical direction, first direction and second direction intersect each other in pairs;Bearing mechanism further includes suspension, lifting rope and pulley, suspension is arranged above first bearing seat, pulley is arranged in suspension, lifting rope is around pulley, one end of lifting rope is connected to the bottom of rack, the other end is connected with first bearing seat, lifting mechanism is arranged in rack, and is connected with suspension, for driving bearing mechanism lifting.The technical scheme of the application can accurately align the battery pack during loading and unloading.

Description

Technical Field

[0001] This utility model relates to the field of energy storage container technology, and in particular to a battery pack moving device. Background Technology

[0002] Energy storage containers typically stack multiple layers of battery packs to achieve high energy density and a compact layout. In related technologies, to install and remove battery packs within the container, a lifting mechanism is usually used to hoist the packs at different heights. The lifting mechanism's support plate carries the battery packs and can be lifted to different heights before being pushed from the support plate into or moved from the installation position to the support plate. However, this hoisting method lacks the flexibility to allow the support plate to move freely during the lifting process, potentially leading to deviations in force from the intended position and causing the battery packs to misalign with the installation location. Utility Model Content

[0003] The main purpose of this invention is to provide a battery pack moving device that enables the battery pack to be accurately aligned during loading and unloading.

[0004] To achieve the above objectives, the battery pack moving device proposed in this utility model includes:

[0005] A frame, the frame including guide rails extending in a vertical direction;

[0006] The supporting mechanism includes a first supporting seat, a second supporting seat, and a push-pull assembly. The first supporting seat is slidably connected to the guide rail. The second supporting seat is slidably disposed on the first supporting seat along a first direction. The push-pull assembly is slidably disposed on the second supporting seat along a second direction. The vertical direction, the first direction, and the second direction intersect each other.

[0007] The load-bearing mechanism also includes a suspension, a suspension rope, and a pulley. The suspension is located above the first load-bearing seat, and the first load-bearing seat is suspended from the suspension by the suspension rope. The pulley is located on the suspension, and the suspension rope is wound around the pulley. One end of the suspension rope is connected to the bottom of the frame, and the other end is connected to the first load-bearing seat.

[0008] A lifting mechanism is provided on the frame and connected to the suspension, and is used to drive the load-bearing mechanism to lift.

[0009] The technical solution of this utility model, by setting guide rails on the frame, allows the load-bearing mechanism to slide on the guide rails. The load-bearing mechanism is always restricted to moving along a fixed path on the guide rails, which can prevent the load-bearing mechanism from swaying and ensure that the load-bearing mechanism remains stable during lifting and lowering, ensuring that the load-bearing mechanism accurately reaches the height position required for loading and unloading the battery pack after lifting and lowering. A pulley is set on the suspension of the load-bearing mechanism, and the suspension rope is wound around the pulley to form a movable pulley structure. When the lifting mechanism drives the suspension to lift and lower, the pulley on the suspension rises and falls accordingly, causing the suspension rope to slide on the pulley, thereby pulling the first load-bearing seat to rise and fall. The pulley can change the direction of force and save effort, so that the lifting mechanism only needs to bear about half of the total weight of the first load-bearing seat and the battery pack, reducing the load requirements of the lifting mechanism. Furthermore, the movable pulley structure allows the lifting stroke of the first load-bearing seat to be twice that of the lifting stroke of the suspension, providing a larger lifting stroke and expanding the working height range of the load-bearing mechanism.

[0010] Furthermore, in the carrying mechanism, the push-pull assembly is slidably mounted on the second carrier seat along the second direction, enabling it to smoothly push the battery pack into or pull it out of the installation position during its sliding process. Simultaneously, the second carrier seat is slidably mounted on the first carrier seat along the first direction, allowing the push-pull assembly mounted on it to adjust its position in the first direction, ensuring that the second carrier seat and the push-pull assembly are accurately aligned with the battery pack's installation position in the first direction. In other words, this application, through the guide rail configuration, ensures accurate vertical alignment of the carrying mechanism during battery pack loading and unloading. By setting the carrying mechanism as a double-layered mechanism and making the position of the upper second carrier seat adjustable, accurate alignment of the carrying mechanism in the first direction is guaranteed, thus ensuring that the carrying mechanism is accurately aligned with the installation position in the energy storage container, and consequently, that the battery pack is accurately aligned with the installation position in the energy storage container or with the carrying mechanism, ensuring a smooth, precise, and reliable battery pack loading and unloading process.

[0011] In one embodiment, the suspension is slidably connected to the guide rail.

[0012] By adopting the above method, the suspension can be limited and guided by the guide rail during the lifting process, avoiding swaying or wobble of the suspension during the lifting process, thereby ensuring the horizontal positional accuracy of the first bearing seat connected by the suspension rope and improving the alignment accuracy.

[0013] In one embodiment, the lifting mechanism includes a jacking mechanism that supports the carrying mechanism.

[0014] By adopting the above method, since the lifting mechanism supports the bearing mechanism from the bottom, the bearing mechanism is always supported by an upward force during the lifting process. This can effectively prevent the bearing mechanism from swaying during the lifting process. Furthermore, with the limiting and guiding effect of the guide rail on the bearing mechanism, the bearing mechanism can be kept stable during the lifting process.

[0015] In one embodiment, the supporting mechanism includes a first driving component, the first driving component comprising:

[0016] First driving component;

[0017] A first lead screw is rotatably mounted on the second bearing seat and extends along the second direction; the first lead screw is connected to the first driving member.

[0018] A first mating component is disposed on the push-pull assembly and is threadedly connected to the first lead screw.

[0019] The first driving member is used to drive the first lead screw to rotate, so that the first mating member drives the push-pull assembly to slide along the second direction.

[0020] Using the above method, a screw drive mechanism is constructed by a first driving member, a first lead screw, and a first mating member to drive the push-pull assembly to slide along the second direction. The screw drive mechanism enables high-precision linear motion. By precisely controlling the number of rotations and angle of the first lead screw through the first driving member, the push-pull assembly can be accurately stopped at the desired position, ensuring the alignment accuracy of the battery pack when pushed into or pulled out of the installation position. Furthermore, the screw drive has a self-locking characteristic. When the first driving member stops working, the threaded engagement between the first lead screw and the first mating member prevents the push-pull assembly from accidentally sliding under external force, improving the reliability of the operation.

[0021] In one embodiment, the first drive element includes a first handwheel.

[0022] Using the above method, the handwheel drive requires no electricity, has a simple and reliable structure, avoids the impact of electrical faults on operation, and can still operate normally under power failure conditions, thus improving the reliability of the device. Furthermore, the manual operation mode provides the operator with direct force feedback, enabling them to sense changes in resistance during the pushing and pulling process, promptly detect jamming or abnormalities, and help protect the battery pack and the pushing and pulling components.

[0023] In one embodiment, the support mechanism includes a second drive component, the second drive component comprising:

[0024] Second drive unit;

[0025] The second lead screw is rotatably disposed on the first bearing seat and extends along the first direction, and the second lead screw is connected to the second driving member;

[0026] The second mating component is disposed on the second bearing seat and is threadedly connected to the second lead screw.

[0027] The second driving member is used to drive the second lead screw to rotate, so that the second mating member drives the second bearing seat to slide along the first direction.

[0028] Using the above method, a screw drive mechanism is constructed by a second driving member, a second lead screw, and a second mating member to drive the second bearing seat to slide along the first direction. The screw drive mechanism enables high-precision linear motion. By precisely controlling the number of rotations and angle of the second lead screw through the second driving member, the second bearing seat can be accurately stopped at the desired position, ensuring that the second bearing seat and its push-pull assembly are accurately aligned with the battery pack's installation position in the first direction, thus improving alignment accuracy. Furthermore, the screw drive has a self-locking characteristic. When the second driving member stops working, the threaded engagement between the second lead screw and the second mating member prevents the second bearing seat from accidentally sliding under external force, ensuring that the second bearing seat remains stable during the push-pull process of the battery pack, thus improving the reliability of the operation.

[0029] In one embodiment, the second drive element includes a second handwheel.

[0030] Using the above method, the handwheel drive requires no electricity, has a simple and reliable structure, avoids the impact of electrical faults on operation, and can still operate normally under power outage conditions, thus improving the reliability of the device. Furthermore, the handwheel allows for manual fine-tuning of the second support seat's position in the first direction, achieving more precise alignment control. The manual operation mode provides the operator with direct force feedback, enabling them to perceive changes in resistance during position adjustment and promptly detect jamming or abnormalities.

[0031] In one embodiment, the second support has a first end and a second end spaced apart along the second direction, the first end serving as the inlet / outlet of the battery pack, and the second drive assembly disposed at the end of the first support near the second end.

[0032] By adopting the above method, the space occupied by the second drive component at the first end can be avoided, and the second drive component can be avoided from interfering with the battery pack entering and exiting the bearing mechanism. It also makes it easier for operators to operate, observe and maintain the equipment directly from the side.

[0033] In one embodiment, the push-pull assembly includes:

[0034] A push-pull plate, which is slidably connected to the second support seat;

[0035] A push rod, connected to the push-pull plate and extending along the second direction; and

[0036] A traction component, which is connected to the push-pull plate.

[0037] Using the above method, the push-pull plate, as the basic load-bearing component, is slidably connected to the second load-bearing seat, providing stable support for the entire push-pull assembly and ensuring smooth operation during the push-pull process. The push rod is used to push the battery pack into its installation position during installation. The push rod is a long rod structure that pushes the battery pack from the load-bearing mechanism deep into the installation position, ensuring the battery pack is fully in place, even in deep installation positions. When it is necessary to pull the battery pack out of its installation position and move it to the load-bearing mechanism, the traction component can be connected to the battery pack, causing the push-pull assembly to slide backward to drag the battery pack, thereby pulling the battery pack from its installation position onto the load-bearing mechanism. The separate design of the push rod and traction component corresponds to the two operational needs of installation and disassembly, and can be configured with different structures to better suit the two different usage scenarios of pushing and pulling.

[0038] In one embodiment, the push rod is detachably connected to the push-pull plate.

[0039] Using the above method, the push rod can be flexibly installed and removed as needed. For example, in the initial stage of battery pack installation, when the installation position is shallow or only the battery pack needs to be initially pushed in, the push rod can be omitted, and the battery pack can be pushed directly using the push-pull plate. When it is necessary to push the battery pack into a deeper position, the push rod is then installed, and its extension length is used to push the battery pack to the deepest installation position, ensuring that the battery pack is fully in place. This design allows for a shorter sliding stroke of the push-pull assembly itself, which helps to reduce the overall structural size and make the device more compact. In addition, push rods of different lengths can be used to meet the installation requirements of battery packs of different depths or sizes, improving the flexibility and applicability of use.

[0040] In one embodiment, the push-pull plate is provided with a limiting groove, and one end of the push rod is disposed in the limiting groove.

[0041] Using the above method, the limiting groove can pre-position the push rod. When installing the push rod, simply inserting the end of the push rod into the limiting groove is sufficient to determine its correct position, eliminating the need for additional alignment and improving assembly / disassembly efficiency. Simultaneously, the sidewall of the limiting groove restricts the push rod's movement perpendicular to the pushing direction, preventing it from swaying during push-pull operations.

[0042] In one embodiment, the push-pull assembly further includes a connector inserted into the push-pull plate and the push rod to connect the push-pull plate and the push rod.

[0043] By using the above method, the push-pull plate and push rod are connected by connectors, which can better withstand the shear and tension generated during the push-pull process, ensuring that the connection is stable and reliable when pushing the battery pack and avoiding loosening.

[0044] In one embodiment, the connector includes at least one of a plunger and a bolt.

[0045] Using the above method, the plunger can be a spring plunger or a quick-release plunger. Simply pulling or pressing the plunger allows for quick connection and separation of the push rod and push-pull plate, making operation convenient. The bolted connection provides greater locking force, ensuring that there is no loosening or relative displacement between the push rod and push-pull plate during the pushing of heavy battery packs.

[0046] In one embodiment, the push-pull plate is provided with a clearance opening. Along the first direction, the clearance opening is located on the side of the limiting groove near the middle of the push-pull plate. A partition is provided between the limiting groove and the clearance opening. One end of the push rod is disposed in the limiting groove. The connector passes through the partition and is connected to the push rod.

[0047] Using the above method, the connector can be installed or removed at the clearance opening; and since the clearance opening is located on the side of the limiting groove near the middle of the push-pull plate, the connector will not protrude from the side of the push-pull plate after the connector is locked, thus avoiding interference and collision between the connector and external equipment or structures during operation.

[0048] In one embodiment, the push rod is provided with a hollowed-out groove.

[0049] By using the above method, the hollowed-out groove can reduce the overall weight of the push rod. While ensuring structural strength and rigidity, the push rod is made lighter by removing some material, which helps to reduce the load.

[0050] In one embodiment, the traction member includes a plurality of connecting portions arranged along the second direction, and the traction member can be connected to the push-pull plate or the battery pack through any of the connecting portions.

[0051] By employing the above method and setting multiple connecting parts arranged along the second direction, the connection position between the traction component and the push-pull plate can be flexibly adjusted, as can the connection position between the traction component and the battery pack. This allows for adjustment of the working length of the traction component between the battery pack and the push-pull plate. Specifically, a longer working length can be used in the initial pulling stage, allowing the traction component to connect to the battery pack without requiring the push-pull plate to move excessively outward. After pulling the battery pack a certain distance from its installation position, the connection position between the traction component and the battery pack, or between the traction component and the push-pull plate, can be adjusted to shorten the working length of the traction component. This shortens the lever arm, allowing for greater pulling force on the battery pack and enabling the battery pack to be pulled deeper into the supporting mechanism. This ensures the battery pack is completely placed on the supporting mechanism, preventing slippage during subsequent lifting or movement and improving operational safety and reliability. This design also allows for a shorter sliding stroke of the push-pull assembly itself, which helps reduce the overall structural size and makes the device more compact.

[0052] In one embodiment, the traction member includes a plurality of chain links connected in sequence, and each chain link is provided with the connecting portion.

[0053] Using the above method, the traction component includes a chain composed of multiple sequentially connected links. There is a certain degree of freedom of movement between adjacent links, allowing the traction component to bend. When the link in the middle position is selected as the connection point, the remaining links outside the working length can hang down naturally or bend to one side without interfering with the connection operation due to rigid stretching.

[0054] In one embodiment, the second support includes a plurality of first rollers arranged along the second direction, the shafts of the first rollers extending along the first direction, and the first rollers being used to support the push-pull assembly and the battery pack.

[0055] Using the above method, the first roller assembly provides low-friction support for the pushing and pulling movement of the battery pack. When the push-pull assembly pushes the battery pack from the second support into the installation position, or pulls it back from the installation position to the second support, the bottom of the battery pack contacts the first roller, and the first roller rotates synchronously during the movement of the battery pack, which can reduce the pushing and pulling resistance and make the operation easier and less strenuous.

[0056] In one embodiment, the second support includes two sets of rollers arranged along the first direction, each roller set including a plurality of second rollers arranged along the second direction, the shafts of the second rollers extending vertically, and the push-pull assembly located between the two sets of rollers.

[0057] Using the above method, the two sets of rollers form guides and limits on the left and right sides of the battery pack. When the battery pack moves on the second support, the second rollers contact the sides of the battery pack, converting sliding friction into rolling friction. This reduces pushing and pulling resistance and guides the battery pack to move linearly in the second direction, preventing the battery pack from swaying or deviating during movement and ensuring its accurate alignment with the installation position. Attached Figure Description

[0058] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0059] Figure 1 This is a structural diagram of an embodiment of the battery moving device provided in this application;

[0060] Figure 2 for Figure 1 Structural diagram of an embodiment of the support mechanism in a battery-powered mobile device;

[0061] Figure 3 A diagram showing the state of the battery moving device provided in this application, in which the supporting mechanism pushes out the battery pack using a push-pull plate;

[0062] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0063] Figure 5 A diagram showing the state of the support mechanism pushing out the battery pack using a push rod in one embodiment of the battery moving device provided in this application;

[0064] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0065] Figure 7 A first state diagram of a carrying mechanism pulling a battery pack in one embodiment of the battery moving device provided in this application;

[0066] Figure 8 for Figure 7 Enlarged view of point C in the middle;

[0067] Figure 9 A second state diagram of a carrying mechanism pulling a battery pack in one embodiment of the battery moving device provided in this application;

[0068] Figure 10 for Figure 9 Enlarged view at point D;

[0069] Figure 11 This is a structural diagram of an embodiment of the push-pull assembly of the load-bearing mechanism in this application;

[0070] Figure 12 for Figure 11 A structural diagram showing the removal of the push rod from the push-pull assembly;

[0071] Figure 13 A structural diagram showing the removal of the push rod from another embodiment of the push-pull assembly of the load-bearing mechanism in this application;

[0072] Figure 14 An exploded view of an embodiment of the push-pull assembly of the support mechanism in this application.

[0073] Explanation of icon numbers:

[0074] 100. Battery pack moving device; 10. Frame; 11. Guide rail; 20. Bearing mechanism; 21. First bearing seat; 211. First slide rail; 212. First hollow hole; 22. Second bearing seat; 221. First slider; 222. Second slide rail; 223. First roller; 224. Second roller; 225. Second hollow hole; 23. Push-pull assembly; 231. Push-pull plate; 2311. Limiting groove; 2312. Clearance opening; 2313. Partition; 232. Push rod; 2321. Hollow groove; 233. 234. Traction component; 2341. Connector; 2342. Plunger; 2343. Bolt; 235. Second slider; 24. First drive assembly; 241. First drive component; 2411. First handwheel; 242. First lead screw; 243. First mating component; 25. Second drive assembly; 251. Second drive component; 2511. Second handwheel; 252. Second lead screw; 253. Second mating component; 26. Suspension; 27. Suspension rope; 28. Pulley; 30. Lifting mechanism; 31. Lifting mechanism; 200. Battery pack;

[0075] X, first direction; Y, second direction; Z, vertical direction.

[0076] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0077] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0078] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0079] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0080] Energy storage containers typically stack multiple layers of battery packs to achieve high energy density and a compact layout. In related technologies, to install and remove battery packs within the container, a lifting mechanism is usually used to hoist the packs at different heights. The lifting mechanism's support plate carries the battery packs and can be lifted to different heights before being pushed from the support plate into or moved from the installation position to the support plate. However, this hoisting method lacks the flexibility to allow the support plate to move freely during the lifting process, potentially leading to deviations in force from the intended position and causing the battery packs to misalign with the installation location.

[0081] Based on the above considerations, this utility model proposes a battery pack moving device 100.

[0082] Please see Figure 1 In one embodiment of this utility model, the battery pack moving device 100 includes a frame 10, a supporting mechanism 20, and a lifting mechanism 30. The frame 10 includes a guide rail 11 extending along the vertical direction Z. The supporting mechanism 20 includes a first supporting seat 21, a second supporting seat 22, and a push-pull assembly 23. The first supporting seat 21 is slidably connected to the guide rail 11. The second supporting seat 22 is slidably disposed on the first supporting seat 21 along the first direction X. The push-pull assembly 23 is slidably disposed on the second supporting seat 22 along the second direction Y. The vertical direction Z, the first direction X, and the second direction Y intersect each other. The lifting mechanism 30 is disposed on the frame 10 and connected to the supporting mechanism 20, and is used to drive the supporting mechanism 20 to rise and fall.

[0083] The battery pack moving device 100 proposed in this application is used to support the battery pack 200 and drive the battery pack 200 to move vertically and horizontally. The frame 10, serving as the supporting foundation of the battery pack moving device 100, can be constructed from welded or bolted steel sections to form a stable and robust frame. The frame 10 can also be equipped with enclosures or other structures to enclose at least part of its side walls, preventing dust and debris from entering and affecting the normal operation of the equipment, while also preventing operators from accidentally contacting moving parts. Furthermore, casters can be integrated to facilitate the relocation of the battery pack moving device 100.

[0084] The frame 10 is provided with a guide rail 11 extending vertically in the Z direction to guide the support mechanism 20 to move up and down along a fixed path. Optionally, the guide rail 11 can be a slide rail, and a slider that is slidably connected to the slide rail is provided on the support mechanism 20; the guide rail 11 can also be an optical axis, and a linear bearing or sliding sleeve that is slidably engaged with the optical axis is provided on the support mechanism 20.

[0085] Optionally, the frame 10 may include two, three or more guide rails 11, which together guide and limit the load-bearing mechanism 20, thereby improving the guiding accuracy and anti-overturning capability.

[0086] The support mechanism 20 includes a first support seat 21, a second support seat 22, and a push-pull assembly 23. The second support seat 22 is slidably connected to the first support seat 21 and can slide relative to the first support seat 21 along a first direction X. The push-pull assembly 23 is slidably connected to the second support seat 22 and can slide relative to both the second support seat 22 and the first support seat 21 along a second direction Y. Specifically, when the battery pack moving device 100 is applied to the loading and unloading of the battery pack 200, the second direction Y is the direction in which the battery pack 200 moves in and out of the installation position. The support mechanism 20 is configured as a double-layer sliding structure, giving it position adjustment capabilities in two orthogonal directions. When the second support seat 22 and the push-pull assembly 23 are misaligned with the installation position of the battery pack 200 in the energy storage container along the first direction X, the second support seat 22 can be driven to slide along the first direction X to align the second support seat 22 and the push-pull assembly 23 with the installation position of the battery pack 200. The sliding of the push-pull assembly 23 along the second direction Y is used to perform the pushing and pulling operations of the battery pack 200. When it is necessary to push the battery pack 200 into the installation position, the push-pull assembly 23 pushes the battery pack 200; when it is necessary to pull the battery pack 200 from the energy storage container into the battery pack moving device 100, the push-pull assembly 23 connects to the battery pack 200.

[0087] The lifting mechanism 30 is used to drive the carrying mechanism 20 to move up and down along the guide rail 11, so as to realize the transfer of the carrying mechanism 20 between different height levels. The lifting mechanism 30 can adopt various driving forms, such as electric push rod, hydraulic cylinder, screw jack, scissor lift, and hoist.

[0088] In this embodiment, by setting a guide rail 11 on the frame 10, the carrying mechanism 20 is slidably mounted on the guide rail 11. When the lifting mechanism 30 drives the carrying mechanism 20 to rise or fall, the carrying mechanism 20 is always restricted to move on the fixed path of the guide rail 11, which can prevent the carrying mechanism 20 from shaking, ensure that the carrying mechanism 20 remains stable during the lifting process, and ensure that the carrying mechanism 20 accurately reaches the height position where the battery pack 200 needs to be loaded or unloaded after it has been lifted or fallen to the correct position.

[0089] Furthermore, in the support mechanism 20, the push-pull assembly 23 is slidably mounted on the second support base 22 along the second direction Y, enabling it to smoothly push the battery pack 200 into or pull it out of the installation position during its sliding process. Simultaneously, by slidably mounting the second support base 22 on the first support base 21 along the first direction X, the second support base 22 can drive the push-pull assembly 23 mounted thereon to adjust its position in the first direction X, ensuring that the second support base 22 and the push-pull assembly 23 are accurately aligned with the installation position of the battery pack 200 in the first direction X. That is, by setting the guide rail 11, this application ensures that the bearing mechanism 20 is accurately aligned in the vertical direction Z during the loading and unloading of the battery pack 200. By setting the bearing mechanism 20 as a double-layer mechanism and making the position of the second bearing seat 22 on the upper layer adjustable, the bearing mechanism 20 is accurately aligned in the first direction X, so that the bearing mechanism 20 is accurately aligned with the installation position in the energy storage container, and the battery pack 200 is accurately aligned with the installation position in the energy storage container or with the bearing mechanism 20, ensuring that the loading and unloading process of the battery pack 200 is smooth, accurate and reliable.

[0090] Please see Figure 7 In one embodiment, the first support plate is provided with a first perforation 212; this arrangement can reduce the weight of the first support plate, making it lighter and easier to carry, which is beneficial for reducing the load.

[0091] Please see Figure 7 In one embodiment, the second support plate is provided with a second perforation 225; this arrangement can reduce the weight of the second support plate, making it lighter and easier to carry, which is beneficial for reducing the load.

[0092] Please see Figure 1In one embodiment, the load-bearing mechanism 20 further includes a suspension 26 and a suspension rope 27. The suspension 26 is disposed above the first load-bearing seat 21, and the first load-bearing seat 21 is suspended from the suspension 26 by the suspension rope 27. The lifting mechanism 30 is connected to the suspension 26 and is used to drive the suspension 26 to rise and fall.

[0093] In this embodiment, the first support seat 21 is suspended from the suspension 26 by a suspension rope 27, keeping the first support seat 21 in a naturally suspended state. When the lifting mechanism 30 pushes or pulls the suspension 26, the force is first applied to the suspension 26, and then evenly transmitted to the first support seat 21 through the suspension rope 27, avoiding the off-center load torque that may be generated by the lifting mechanism 30 directly pushing the first support seat 21. Furthermore, since the height of the first support seat 21 is lower than that of the suspension 26, when the lifting mechanism 30 drives the suspension 26 to its lowest position, the position of the first support seat 21 is even lower, thereby allowing the support mechanism 20 to reach the bottom battery pack 200 loading and unloading station closer to the ground, expanding the operating height range.

[0094] Please see Figure 1 In one embodiment, the bearing mechanism 20 further includes a pulley 28, which is disposed on the suspension 26. A suspension rope 27 is wound around the pulley 28, with one end of the suspension rope 27 connected to the bottom of the frame 10 and the other end connected to the first bearing seat 21.

[0095] In this embodiment, a movable pulley structure is formed by setting a pulley 28 on the suspension 26 and winding the suspension rope 27 around the pulley 28. When the lifting mechanism 30 drives the suspension 26 to rise or fall, the pulley 28 on the suspension 26 rises or falls accordingly, causing the suspension rope 27 to slide on the pulley 28, thereby pulling the first support seat 21 to rise or fall.

[0096] Among them, pulley 28 can change the direction of force and save effort, so that the lifting mechanism 30 only needs to bear about half of the total weight of the first support seat 21 and the battery pack 200, reducing the load requirements of the lifting mechanism 30. In addition, the movable pulley structure makes the lifting stroke of the first support seat 21 twice that of the suspension 26. When the suspension 26 rises or falls a unit distance, the first support seat 21 rises or falls twice the distance. The lifting stroke of the first support seat 21 is no longer limited by the driving stroke of the lifting mechanism 30 itself, thus giving the first support seat 21 a larger lifting stroke and expanding the working height range of the support mechanism 20.

[0097] Please see Figure 1 In one embodiment, the suspension 26 is slidably connected to the guide rail 11.

[0098] In this embodiment, the suspension 26 is also limited and guided by the guide rail 11 during the lifting process, which prevents the suspension 26 from swaying or deflecting during the lifting process, thereby ensuring the positional accuracy of the first bearing seat 21 connected by the suspension rope 27 in the horizontal direction and improving the alignment accuracy.

[0099] Please see Figure 1 In one embodiment, the lifting mechanism 30 includes a lifting mechanism 31, which supports the bearing mechanism 20.

[0100] In this embodiment, a lifting mechanism 31 is used as a lifting mechanism 30 to drive the bearing mechanism 20 to rise and fall. Since the lifting mechanism 31 supports the bearing mechanism 20 by bottom support, the bearing mechanism 20 is always subjected to an upward supporting force during the lifting process, which can better prevent the bearing mechanism 20 from shaking during the lifting process. Furthermore, under the limiting and guiding effect of the guide rail 11 on the bearing mechanism 20, the bearing mechanism 20 can be kept stable during the lifting process.

[0101] Please see Figure 2 In one embodiment, the bearing mechanism 20 includes a first driving assembly 24, which includes a first driving member 241, a first lead screw 242, and a first mating member 243. The first lead screw 242 is rotatably disposed on the second bearing seat 22 and extends along the second direction Y. The first lead screw 242 is connected to the first driving member 241. The first mating member 243 is disposed on the push-pull assembly 23 and is threadedly connected to the first lead screw 242. The first driving member 241 is used to drive the first lead screw 242 to rotate so that the first mating member 243 drives the push-pull assembly 23 to slide along the second direction Y.

[0102] In this embodiment, the first driving device includes a screw drive mechanism composed of a first driving member 241, a first lead screw 242, and a first mating member 243, used to drive the push-pull assembly 23 to slide along the second direction Y. The screw drive mechanism enables high-precision linear motion. By precisely controlling the number of rotations and angle of the first lead screw 242 through the first driving member 241, the push-pull assembly 23 can be accurately stopped at the desired position, ensuring the alignment accuracy of the battery pack 200 when pushed into or pulled out of the installation position. Furthermore, the screw drive has a self-locking characteristic. When the first driving member 241 stops working, the threaded engagement between the first lead screw 242 and the first mating member 243 prevents the push-pull assembly 23 from accidentally sliding under external force, improving the reliability of the operation.

[0103] Optionally, the first drive unit 241 can be configured as a manual operation structure such as a handwheel, or as an electric drive structure such as a motor.

[0104] Please see Figure 2In one embodiment, the first drive member 241 includes a first handwheel 2411.

[0105] In this embodiment, the first driving component 241 includes a first handwheel 2411. Rotating the first handwheel 2411 drives the first lead screw 242 to rotate, thereby driving the push assembly to slide along the second direction Y. The handwheel drive method does not require electric drive, has a simple and reliable structure, avoids the impact of electrical faults on operation, and can still operate normally under conditions such as power failure, thus improving the reliability of the device. Furthermore, the manual operation mode provides the operator with direct force feedback, enabling them to perceive changes in resistance during the push-pull process and promptly detect jams or abnormalities, which is beneficial for protecting the battery pack 200 and the push-pull assembly 23.

[0106] Please see Figure 2 In one embodiment, the second support base 22 is provided with a second slide rail 222 extending along the second direction Y, and the push-pull assembly 23 is provided with a second slider 235. The second slide rail 222 and the first lead screw 242 are arranged side by side along the first direction X. The second slider 235 and the second slide rail 222 are slidably connected to form a sliding pair, so that the push-pull assembly 23 is connected to the second support base 22 through the lead screw transmission mechanism and the sliding pair. This can not only make the supporting force on the push-pull assembly 23 balanced and provide stable support for the push-pull assembly 23, but also guide and limit the push-pull assembly 23, ensuring that the sliding process of the push-pull assembly 23 is stable and does not wobble.

[0107] Please see Figure 2 In one embodiment, the bearing mechanism 20 includes a second drive assembly 25, which includes a second drive member 251, a second lead screw 252, and a second mating member 253. The second lead screw 252 is rotatably disposed on the first bearing seat 21 and extends along the first direction X. The second lead screw 252 is connected to the second drive member 251. The second mating member 253 is disposed on the second bearing seat 22 and is threadedly connected to the second lead screw 252. The second drive member 251 is used to drive the second lead screw 252 to rotate, so that the second mating member 253 drives the second bearing seat 22 to slide along the first direction X.

[0108] In this embodiment, the second drive assembly 25 includes a screw drive mechanism consisting of a second drive member 251, a second lead screw 252, and a second mating member 253, used to drive the second support seat 22 to slide along the first direction X. The screw drive mechanism enables high-precision linear motion. By precisely controlling the number of rotations and angle of the second lead screw 252 through the second drive member 251, the second support seat 22 can be accurately stopped at the desired position, ensuring that the second support seat 22 and its push-pull assembly 23 are accurately aligned with the installation position of the battery pack 200 in the first direction X, thus improving alignment accuracy. Furthermore, the screw drive has a self-locking characteristic. When the second drive member 251 stops working, the threaded engagement between the second lead screw 252 and the second mating member 253 prevents the second support seat 22 from accidentally sliding under external force, ensuring that the second support seat 22 remains stable during the push-pull process of the battery pack 200, thus improving the reliability of the operation.

[0109] Please see Figure 2 In one embodiment, the second drive member 251 includes a second handwheel 2511.

[0110] In this embodiment, the second driving component 251 includes a second handwheel 2511. Rotating the second handwheel 2511 drives the second lead screw 252 to rotate, thereby causing the second bearing seat 22 to slide along the first direction X. The handwheel drive method requires no electricity, has a simple and reliable structure, avoids the impact of electrical faults on operation, and can still operate normally under power outage conditions, improving the reliability of the device. Furthermore, the handwheel allows for manual fine-tuning of the position of the second bearing seat 22 in the first direction X, achieving more precise alignment control. The manual operation mode provides the operator with direct force feedback, enabling them to perceive changes in resistance during position adjustment and promptly detect jamming or abnormalities.

[0111] Please see Figure 3 In one embodiment, the second support 22 has a first end and a second end spaced apart along the second direction Y. The first end serves as the inlet and outlet of the battery pack 200, and the second drive assembly 25 is disposed at the end of the first support 21 near the second end.

[0112] In this embodiment, the second support 22 includes a first end and a second end spaced apart along the second direction Y. The first end serves as the entry end for the battery pack 200 to enter and exit the second support 22. The second drive member 251 is positioned near the second end of the first support 21. This arrangement avoids the second drive member 251 occupying space at the first end and prevents it from interfering with the battery pack 200's entry and exit from the support mechanism 20. Furthermore, when operating the second drive member 251 to control the second support 22 to slide along the first direction X, the second support 22 is typically aligned with the installation position of the battery pack 200. Since the first end of the second support 22 is near the installation position of the battery pack 200, such as near the cluster, the first drive member 241 is positioned away from the first end of the first support 21 to facilitate operation. Additionally, the second drive member 251 is positioned near the edge of the frame 10, allowing operators to directly operate, observe, and maintain the equipment from the side without needing to insert their hands or tools into the frame 10, thus improving operational convenience.

[0113] Please see Figure 3 In one embodiment, the first support seat 21 is provided with a first slide rail 211 extending along the first direction X, and the second support seat 22 is provided with a first slider 221. The first slide rail 211 and the second lead screw 252 are arranged side by side along the second direction Y. The first slider 221 is slidably connected to the first slide rail 211 to form a sliding pair, so that the second support seat 22 is connected to the first support seat 21 through the lead screw transmission mechanism and the sliding pair. This can not only make the supporting force on the second support seat 22 balanced and provide stable support for the second support seat 22, but also guide and limit the second support seat 22, ensuring that the sliding process of the second support seat 22 is stable and does not wobble.

[0114] Please see Figure 2 In one embodiment, the push-pull assembly 23 includes a push-pull plate 231, a push rod 232, and a traction member 233. The push-pull plate 231 is slidably connected to the second support seat 22; the push rod 232 is connected to the push-pull plate 231 and extends along the second direction Y; the traction member 233 is connected to the push-pull plate 231.

[0115] In this embodiment, the push-pull plate 231 serves as a basic load-bearing component, slidably connected to the second load-bearing seat 22, providing stable support for the entire push-pull assembly 23 and ensuring smooth operation during the push-pull process. The push rod 232 is used to push the battery pack 200 into the installation position during installation. The push rod 232 is a long rod structure that pushes the battery pack 200 from the load-bearing mechanism 20 into the deepest part of the installation position, ensuring the battery pack 200 is fully in place, even if the installation position is deep. When it is necessary to pull the battery pack 200 out of the installation position and move it to the load-bearing mechanism 20, the traction member 233 can be connected to the battery pack 200, causing the push-pull assembly 23 to slide backward to drag the battery pack 200, thereby pulling the battery pack 200 from the installation position onto the load-bearing mechanism 20. The push rod 232 and the traction component 233 are designed to correspond to the two operation requirements of installation and disassembly, respectively. They can be set with different structures to better suit the two different usage scenarios of pushing and pulling.

[0116] Please see Figure 14 In one embodiment, the push rod 232 is detachably connected to the push-pull plate 231.

[0117] In this embodiment, the push rod 232 can be flexibly disassembled and assembled as needed. The connection method between the push rod 232 and the push-pull plate 231 can be, but is not limited to, at least one of the following: snap-fit ​​connection, bolt 2342 connection, threaded connection, etc.

[0118] Please see Figures 3 to 6 In practical applications, during the initial installation of the battery pack 200, when the installation position is shallow or only the battery pack 200 needs to be initially pushed in, the push rod 232 can be omitted, and the battery pack 200 can be pushed directly using the push-pull plate 231. When it is necessary to push the battery pack 200 into a deeper position, the push rod 232 is then installed, and the extension length of the push rod 232 is used to push the battery pack 200 to the deepest installation position, ensuring that the battery pack 200 is fully in place.

[0119] This design allows for a shorter sliding stroke in the push-pull assembly 23, which helps reduce the overall structural size and makes the device more compact. Furthermore, by replacing the push rods 232 with different lengths, it can meet the installation requirements of battery packs 200 of different depths or sizes, improving flexibility and applicability.

[0120] Please see Figure 14 In one embodiment, the push-pull plate 231 is provided with a limiting groove 2311, and one end of the push rod 232 is provided in the limiting groove 2311.

[0121] In this embodiment, the limiting groove 2311 can pre-position the push rod 232. When installing the push rod 232, simply inserting the end of the push rod 232 into the limiting groove 2311 is sufficient to determine the correct position of the push rod 232, eliminating the need for additional alignment and improving assembly and disassembly efficiency. Simultaneously, the sidewall of the limiting groove 2311 can restrict the movement of the push rod 232 perpendicular to the pushing direction, preventing the push rod 232 from swaying during the pushing and pulling process.

[0122] Please see Figure 11 and Figure 13 In one embodiment, the push-pull assembly 23 further includes a connector 234, which is inserted into the push-pull plate 231 and the push rod 232 to connect the push-pull plate 231 and the push rod 232.

[0123] In this embodiment, the push-pull plate 231 and the push rod 232 are connected by the connector 234, which can better withstand the shear force and tension generated during the push-pull process, ensuring that the connection is stable and reliable when pushing the battery pack 200 and avoiding loosening.

[0124] Please see Figure 14 In one embodiment, the push-pull plate 231 is provided with a clearance opening 2312. Along the first direction X, the clearance opening 2312 is located on the side of the limiting groove 2311 near the middle of the push-pull plate 231. A partition 2313 is provided between the limiting groove 2311 and the clearance opening 2312. One end of the push rod 232 is provided in the limiting groove 2311. The connector 234 passes through the partition 2313 and is connected to the push rod 232.

[0125] In this embodiment, the operator can install or remove the connector 234 at the clearance opening 2312; and since the clearance opening 2312 is located on the side of the limiting groove 2311 near the middle of the push-pull plate 231, after the connector 234 is locked, the connector 234 will not protrude from the side of the push-pull plate 231, thus avoiding interference and collision between the connector 234 and external equipment or structures during operation.

[0126] Please see Figure 11 and Figure 13 In one embodiment, the connector 234 includes at least one of a plunger 2341 and a bolt 2342.

[0127] In this embodiment, the plunger 2341 can be a spring plunger 2341 or a quick-connect plunger 2341. Simply pulling or pressing the plunger 2341 allows for quick connection and separation of the push rod 232 and the push-pull plate 231, making operation convenient. The bolt 2342 connection provides a large locking force, ensuring that no loosening or relative displacement occurs between the push rod 232 and the push-pull plate 231 during the pushing of the heavy battery pack 200.

[0128] Please see Figure 13 and Figure 14 In one embodiment, the push rod 232 is provided with a hollowed-out groove 2321.

[0129] In this embodiment, the hollowed-out groove 2321 can reduce the overall weight of the push rod 232. While ensuring structural strength and rigidity, the push rod 232 is made lighter by removing some material, which is beneficial to reducing the load.

[0130] Please see Figure 14 In one embodiment, the traction member 233 includes a plurality of connecting parts arranged along the second direction Y. The traction member 233 can be connected to the push-pull plate 231 or the battery pack 200 through any of the connecting parts.

[0131] In this embodiment, the traction member 233 includes a plurality of connecting portions arranged along the second direction Y. Each connecting portion may include a connecting hole, and a hook may be provided on the push-pull plate 231 or the battery pack 200 accordingly. Alternatively, a screw hole may be provided on the push-pull plate 231 or the battery pack 200, and a bolt 2342 may be inserted through the connecting hole and locked into the screw hole to connect the traction member 233 to the push-pull plate 231 or the battery pack 200. The connecting portion may also include a hook, with a corresponding connecting hole provided on the push-pull plate 231 or the battery pack 200; of course, the connecting portion may also include other connecting structures, which will not be elaborated here.

[0132] The traction member 233 can be connected to the push-pull plate 231 or the battery pack 200 through any connecting part, so that the connection position between the traction member 233 and the push-pull plate 231 can be flexibly adjusted, and the connection position between the traction member 233 and the battery pack 200 can also be flexibly adjusted, thereby adjusting the working length of the traction member 233 between the battery pack 200 and the push-pull plate 231.

[0133] See also Figures 7 to 10 In practical applications, a longer working length can be used in the initial pulling stage, without requiring the push-pull plate 231 to move outward an excessive distance. The traction component 233 can then connect to the battery pack 200. After pulling the battery pack 200 a certain distance from its installation position, the connection position between the traction component 233 and the battery pack 200, or between the traction component 233 and the push-pull plate 231, can be adjusted to shorten the working length of the traction component 233. This shortens the lever arm, allowing for a greater pulling force on the battery pack 200, and also enables the battery pack 200 to be pulled deeper into the bearing mechanism 20, ensuring that the battery pack 200 is completely placed on the bearing mechanism 20. This prevents slippage during subsequent lifting or movement, improving operational safety and reliability. This configuration also allows for a shorter sliding stroke of the push-pull component 23 itself, which helps reduce the overall structural size and makes the device more compact.

[0134] Please see Figure 14In one embodiment, the traction member 233 includes a plurality of chain links connected in sequence, and the chain links are provided with connecting portions.

[0135] In this embodiment, the traction member 233 includes a chain composed of multiple sequentially connected links. There is a certain degree of freedom of movement between adjacent links, allowing the traction member 233 to bend. When the link in the middle position is selected as the connection point, the remaining links outside the working length can hang down naturally or bend to one side without interfering with the connection operation due to rigid stretching.

[0136] Optionally, the connecting part on the chain link can be a ring hole on the chain link, or a connecting structure such as a hook on the chain link, which is not limited here.

[0137] Please see Figure 2 and Figure 4 In one embodiment, the second support 22 includes a plurality of first rollers 223 arranged along the second direction Y. The axis of rotation of the first rollers 223 extends along the first direction X. The first rollers 223 are used to support the push-pull assembly 23 and the battery pack 200.

[0138] In this embodiment, multiple first rollers 223 provide low friction for the push-pull movement of the battery pack 200. When the push-pull assembly 23 pushes the battery pack 200 from the second support 22 into the installation position or pulls it back from the installation position to the second support 22, the bottom of the battery pack 200 contacts the first rollers 223, and the first rollers 223 rotate synchronously during the movement of the battery pack 200, which can reduce the pushing and pulling resistance and make the operation easier and less strenuous.

[0139] Please see Figure 2 and Figure 4 In one embodiment, the second support 22 includes two sets of rollers arranged along the first direction X. Each set of rollers includes a plurality of second rollers 224 arranged along the second direction Y. The shafts of the second rollers 224 extend along the vertical direction Z. The push-pull assembly 23 is located between the two sets of rollers.

[0140] In this embodiment, two sets of rollers form guides and limits on the left and right sides of the battery pack 200. When the battery pack 200 moves on the second support 22, the second rollers 224 contact the sides of the battery pack 200, converting sliding friction into rolling friction. This reduces pushing and pulling resistance and guides the battery pack 200 to move linearly along the second direction Y, preventing the battery pack 200 from swaying or deviating during movement and ensuring its accurate alignment with the installation position.

[0141] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A battery pack moving device, characterized in that, include: A frame, the frame including guide rails extending in a vertical direction; The support mechanism includes a first support seat, a second support seat, and a push-pull assembly. The first support seat is slidably connected to the guide rail. The second support seat is slidably disposed on the first support seat along a first direction. The push-pull assembly is slidably disposed on the second support seat along a second direction. The vertical direction, the first direction, and the second direction intersect each other. The load-bearing mechanism also includes a suspension, a rope, and a pulley. The suspension is located above the first load-bearing seat, the pulley is located on the suspension, the rope is wound around the pulley, one end of the rope is connected to the bottom of the frame, and the other end is connected to the first load-bearing seat. as well as A lifting mechanism is provided on the frame and connected to the suspension, and is used to drive the load-bearing mechanism to lift.

2. The battery pack moving device as described in claim 1, characterized in that, The suspension is slidably connected to the guide rail.

3. The battery pack moving device as described in claim 1, characterized in that, The lifting mechanism includes a jacking mechanism, which supports the bearing mechanism.

4. The battery pack moving device as described in claim 1, characterized in that, The support mechanism includes a first driving component, the first driving component comprising: First driving component; A first lead screw is rotatably mounted on the second bearing seat and extends along the second direction; the first lead screw is connected to the first driving member. A first mating component is disposed on the push-pull assembly and is threadedly connected to the first lead screw. The first driving member is used to drive the first lead screw to rotate, so that the first mating member drives the push-pull assembly to slide along the second direction.

5. The battery pack moving device as described in claim 4, characterized in that, The first drive component includes a first handwheel.

6. The battery pack moving device as claimed in claim 1, characterized in that, The support mechanism includes a second drive component, the second drive component comprising: Second drive unit; The second lead screw is rotatably disposed on the first bearing seat and extends along the first direction, and the second lead screw is connected to the second driving member; The second mating component is disposed on the second bearing seat and is threadedly connected to the second lead screw. The second driving member is used to drive the second lead screw to rotate, so that the second mating member drives the second bearing seat to slide along the first direction.

7. The battery pack moving device as described in claim 6, characterized in that, The second drive component includes a second handwheel; And / or, the second carrier has a first end and a second end spaced apart along the second direction, the first end serving as the inlet and outlet of the battery pack, and the second drive assembly being disposed at the end of the first carrier near the second end.

8. The battery pack moving device as described in any one of claims 1 to 5, characterized in that, The push-pull assembly includes: A push-pull plate, which is slidably connected to the second support seat; A push rod, connected to the push-pull plate and extending along the second direction; and A traction component, which is connected to the push-pull plate.

9. The battery pack moving device as described in claim 8, characterized in that, The push rod is detachably connected to the push-pull plate.

10. The battery pack moving device as claimed in claim 9, characterized in that, The push-pull plate is provided with a limiting groove, and one end of the push rod is located in the limiting groove.

11. The battery pack moving device as claimed in claim 10, characterized in that, The push-pull assembly further includes a connector, which is inserted into the push-pull plate and the push rod to connect the push-pull plate and the push rod.

12. The battery pack moving device as claimed in claim 11, characterized in that, The push-pull plate is provided with a clearance opening. Along the first direction, the clearance opening is located on the side of the limiting groove near the middle of the push-pull plate. A partition is provided between the limiting groove and the clearance opening. One end of the push rod is located in the limiting groove. The connector passes through the partition and is connected to the push rod. And / or, the connector includes at least one of a plunger and a bolt.

13. The battery pack moving device as claimed in claim 8, characterized in that, The push rod has a hollowed-out groove.

14. The battery pack moving device as claimed in claim 8, characterized in that, The traction component includes multiple connecting parts, which are arranged along the second direction. The traction component can be connected to the push-pull plate or the battery pack through any of the connecting parts.

15. The battery pack moving device as claimed in claim 14, characterized in that, The traction component includes a plurality of chain links connected in sequence, and each chain link is provided with the connecting portion.

16. The battery pack moving device as described in any one of claims 1 to 7, characterized in that, The second support includes a plurality of first rollers arranged along the second direction, the shafts of the first rollers extending along the first direction, and the first rollers being used to support the push-pull assembly and the battery pack; And / or, the second support includes two sets of rollers arranged along the first direction, each set of rollers including a plurality of second rollers arranged along the second direction, the shafts of the second rollers extending vertically, and the push-pull assembly located between the two sets of rollers.

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