Battery pack disassembly and assembly device

Abstract

This application relates to the field of battery technology and discloses a battery pack assembly / disassembly device. The device includes: a base with mounting slots on opposite sides, each mounting slot having multiple rollers arranged on it, the rollers supporting the battery pack; a drive assembly mounted on the base; and a push-pull assembly slidably mounted on the base along the extension direction of the mounting slots and connected to the drive assembly. The push-pull assembly is detachably connected to the battery pack so that, driven by the drive assembly, it moves the battery pack on the rollers, causing the rollers to rotate as the battery pack moves. Through this method, this application avoids personal safety hazards and improves the efficiency of battery pack assembly and disassembly.

Description

Technical Field

[0001] This application relates to the field of battery technology, specifically to a battery pack disassembly and assembly device. Background Technology

[0002] Containerized energy storage systems can provide a variety of services for power grid operation, such as peak shaving, frequency regulation, backup, black start, and demand response support. They are an important means to improve the flexibility, economy, and security of traditional power systems.

[0003] With the development of the energy storage industry, in order to meet the higher power demand of the grid, the size and weight of the battery packs in containerized energy storage systems are becoming larger and larger. In addition, the height of the multi-layer racks for installing battery packs in containerized energy storage systems is generally higher than 2 meters. If the battery packs are pushed in or pulled out of the multi-layer racks manually, not only is the loading and unloading efficiency low, but there are also personal safety hazards such as pinching, bumping, falling and crushing injuries. Utility Model Content

[0004] In view of the above problems, this application provides a battery pack disassembly and assembly device, which avoids personal safety hazards and improves the efficiency of battery pack installation and disassembly.

[0005] According to one aspect of the embodiments of this application, a battery pack disassembly and assembly device is provided. The battery pack disassembly and assembly device includes: a base with mounting grooves respectively provided on opposite sides, and a plurality of rollers arranged on each mounting groove for supporting the battery pack; a drive assembly disposed on the base; and a push-pull assembly slidably disposed on the base along the extension direction of the mounting groove and connected to the drive assembly. The push-pull assembly is used to detachably connect with the battery pack so as to drive the battery pack to move on the rollers under the drive of the drive assembly, and to make the rollers rotate as the battery pack moves.

[0006] In one alternative approach, multiple rollers are evenly arranged on the mounting slot, and the spacing between two adjacent rollers ensures that the end of the battery pack facing the push-pull assembly is always supported by the rollers during battery pack movement.

[0007] In one alternative embodiment, the mounting groove is U-shaped, with multiple notches on the two side walls of the mounting groove. Support shafts are provided at both ends of the roller, and the support shafts at both ends are rotatably limited and connected to the two opposite notches.

[0008] In one alternative embodiment, the push-pull assembly includes a push-pull plate that is slidably disposed on the base along the extension direction of the mounting groove. The push-pull plate is vertically disposed and connected to the drive assembly. The height of the push-pull plate is configured to be greater than half the height of the battery pack. The push-pull plate is used to abut against the battery pack and push the battery pack out under the drive of the drive assembly.

[0009] In one alternative embodiment, the push-pull assembly further includes a support plate, the push-pull plate being vertically mounted on the support plate, the support plate being slidably mounted on the base along the extension direction of the mounting groove, and being connected to the drive assembly; the support plate is used to drive the push-pull plate to slide relative to the base under the drive of the drive assembly; a support plate is connected between the side of the push-pull plate away from the battery pack and the support plate, the support plate being perpendicular to the push-pull plate.

[0010] In one alternative approach, the push-pull plate has first limiting grooves at both ends, and limiting members are inserted into the first limiting grooves. The limiting members are also used to connect with the second limiting grooves on both sides of the battery pack to connect and fix the push-pull plate to the battery pack.

[0011] In one alternative embodiment, the drive assembly includes a lead screw and a handwheel. The lead screw is mounted on a base and parallel to a mounting slot. The push-pull assembly is sleeved on the lead screw. The handwheel is connected to one end of the lead screw and is suspended outside the base. The handwheel is used to drive the lead screw to rotate when rotated, thereby driving the push-pull assembly to slide on the base.

[0012] In one alternative embodiment, the base has two parallel guide rails arranged between two mounting slots, each guide rail has a slider, each slider is fixedly connected to the push-pull assembly, each slider is used to support the push-pull assembly, and the push-pull assembly is also used to slide on the guide rail via the slider.

[0013] In one alternative embodiment, the base has a mounting seat arranged parallel between two mounting slots, with mounting portions protruding on both sides of the mounting seat, and two guide rails respectively mounted on the two mounting portions.

[0014] In one alternative embodiment, a baffle and a support are respectively provided at both ends of the base, and the drive assembly is fixed to the base through the baffle and the support; a first elastic element is provided on the side of the baffle facing the support, and the first elastic element is used to abut against the push-pull assembly when the push-pull assembly moves to one end of the base; a second elastic element is provided on the side of the support facing the baffle, and the second elastic element is used to abut against the push-pull assembly when the push-pull assembly moves to the other end of the base.

[0015] In the battery pack assembly / disassembly device provided in this application embodiment, mounting grooves are provided on both sides of the base, and multiple rollers are provided on the mounting grooves so that the multiple rollers can support the battery pack. Furthermore, by sliding the push-pull assembly on the base and detachably connecting it to the battery pack, and by providing a drive assembly to drive the push-pull assembly to slide on the base, the push-pull assembly can drive the battery pack to move on the rollers, and the rollers rotate during the movement of the battery pack. In this way, not only can the personal safety hazards caused by manual assembly / disassembly of the battery pack be avoided, but also, because the friction of the battery pack moving on the multiple rollers is very small, the resistance of the battery pack moving on the rollers is greatly reduced compared to sliding directly on the base, so that the moving speed of the battery pack is faster. It can be quickly pushed out of the rollers to the installation position by the push-pull assembly, and can also be quickly pulled out of the installation position to the rollers by the push-pull assembly, thereby quickly realizing the assembly and disassembly of the battery pack and improving the assembly and disassembly efficiency of the battery pack.

[0016] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0018] Figure 1 A schematic diagram of the structure of a battery pack placed on a battery pack disassembly and assembly device according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the battery pack disassembly and assembly device provided in the embodiments of this application;

[0020] Figure 3 An exploded view of the battery pack disassembly and assembly device provided in the embodiments of this application;

[0021] Figure 4 An exploded view of the driving component provided in an embodiment of this application.

[0022] The reference numerals in the detailed embodiments are as follows:

[0023] 10. Battery pack disassembly and assembly device; 20. Battery pack; 21. Second limiting groove;

[0024] 100, Base; 110, Mounting slot; 111, Roller; 111a, Support shaft; 112, Notch; 120, Guide rail; 121, Slider; 130, Mounting seat; 131, Mounting part; 140, Baffle; 150, First support; 160, Second support; 170, First elastic element; 180, Second elastic element; 200, Drive assembly; 210, Lead screw; 220, Handwheel; 230, Nut seat; 300, Push-pull assembly; 310, Push-pull plate; 311, First limiting slot; 320, Bearing plate; 330, Support plate; 340, Bearing platform. Detailed Implementation

[0025] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0027] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.

[0030] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0031] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0032] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0033] Containerized energy storage systems typically need to provide the highest possible energy storage capacity within a limited space to quickly provide stable power as a backup power source during grid failures or emergencies, ensuring continuous power supply to critical loads. To store sufficient energy, containerized energy storage systems are usually configured with multiple battery packs to meet the needs of various grid application scenarios. Furthermore, to maximize the battery pack capacity of containerized energy storage systems, multi-layer racks are installed within the battery compartment. Placing battery packs on these racks allows for stacking, maximizing the use of space within the battery compartment to accommodate more battery packs.

[0034] With the development of the energy storage industry, in order to meet the higher power demand of the grid, the size and weight of the battery packs in containerized energy storage systems are becoming increasingly larger, which undoubtedly increases the difficulty of battery pack installation and disassembly. Furthermore, the battery packs are placed on multi-tiered racks, which are generally over 2 meters high. Manually pushing or pulling the battery packs into or out of these racks not only results in low loading and unloading efficiency but also poses personal safety hazards such as pinching, bumping, and falling injuries.

[0035] To address the aforementioned issues, this application provides a battery pack assembly / disassembly device. The battery pack is supported by a base, and subsequent movement of the device using a forklift or other equipment enables rapid battery pack movement. This solves the problem of slow manual movement due to the weight of the battery pack, improving the efficiency of battery pack installation and disassembly. To push the battery pack into or pull it out of the mounting position from the base, a drive assembly and a push-pull assembly are provided on the base. The drive assembly drives the push-pull assembly to push the battery pack into or pull it out of the mounting position onto the base, eliminating the need for manual pushing or pulling. This not only improves the efficiency of battery pack installation and disassembly but also avoids personal safety hazards.

[0036] Furthermore, considering the high friction of the base and its large contact area with the battery pack, which increases the resistance to the battery pack's movement on the base and results in a lower movement speed, mounting slots are provided on both sides of the base, and multiple rollers are installed in the mounting slots. This allows the battery pack to be supported on the rollers and moved on the rollers by the push-pull assembly. As the push-pull assembly moves the battery pack, the rollers rotate accordingly, reducing the friction of the battery pack on the rollers, thus reducing the resistance to movement and increasing the speed of movement. This allows the battery pack to be quickly pushed from the rollers to the installation position and quickly pulled from the installation position onto the rollers, further improving the efficiency of battery pack installation and removal.

[0037] Please see Figure 1 and Figure 2 , Figure 1 This illustration shows a schematic diagram of the structure of a battery pack placed on a battery pack assembly / disassembly device according to an embodiment of this application. Figure 2 A schematic diagram of the battery pack disassembly and assembly device provided in this application embodiment is shown. As shown in the figure, the battery pack disassembly and assembly device 10 includes a base 100, a drive assembly 200, and a push-pull assembly 300. The base 100 has mounting grooves 110 on opposite sides, and each mounting groove 110 has multiple rollers 111 arranged on it. The rollers 111 are used to support the battery pack 20. The drive assembly 200 is disposed on the base 100. The push-pull assembly 300 is slidably disposed on the base 100 along the extending direction of the mounting grooves 110 (indicated by arrows x and y in the figure) and connected to the drive assembly 200. The push-pull assembly 300 is detachably connected to the battery pack 20 so that, driven by the drive assembly 200, it moves the battery pack 20 on the rollers 111, and the rollers 111 rotate as the battery pack 20 moves.

[0038] When the rollers 111 are positioned on the mounting groove 110, they are higher than the groove, allowing the battery pack 20 to rest on multiple rollers 111 when placed on the battery pack mounting / unmounting device 10. The rollers 111 are rotatably mounted on the mounting groove 110, allowing them to rotate as the battery pack 20 moves. Furthermore, the surface of each roller 111 can be lubricated to achieve an extremely low coefficient of friction, reducing surface friction and ensuring more flexible rotation within the mounting groove 110 as the battery pack 20 moves. This also reduces the resistance to movement of the battery pack 20 and increases its speed.

[0039] like Figure 2 As shown, the drive component 200 and the push-pull component 300 can be disposed between two mounting slots 110. The drive component 200 can drive the push-pull component 300 to slide on the base 100 in the direction indicated by arrow x or arrow y in the figure. The specific method by which the drive component 200 drives the push-pull component 300 to slide will be explained in detail below, and will not be elaborated here.

[0040] Specifically, when installing the battery pack 20, first place the battery pack 20 on the battery pack mounting / unmounting device 10, and then move the battery pack mounting / unmounting device 10 so that the battery pack 20 is aligned with the mounting position on the multi-layer shelf. Then, please refer to... Figure 2 The push-pull assembly 300 is driven by the drive assembly 200 to slide in the direction shown by arrow x, so that the push-pull assembly 300 abuts against the battery pack 20 and pushes the battery pack 20 to move in the same direction on the rollers 111. At this time, as the battery pack 20 moves, the rollers 111 supporting the battery pack 20 rotate counterclockwise, reducing the moving resistance of the battery pack 20, so that the battery pack 20 can move more easily on the rollers 111 in the direction shown by arrow x, and can be pushed more easily by the push-pull assembly 300 from the rollers 111 to the installation position on the multi-layer shelf.

[0041] When it is necessary to disassemble the battery pack 20, first move the battery pack disassembly / removal device 10 to align the battery pack 20 on the multi-layer shelf, and then, please refer to... Figure 2 The push-pull assembly 300 is driven by the drive assembly 200 to slide in the direction indicated by arrow y, so that the push-pull assembly 300 can pull the battery pack 20 to move in the same direction on the roller 111. At this time, as the battery pack 20 moves, the roller 111 supporting the battery pack 20 rotates clockwise, reducing the moving resistance of the battery pack 20, so that the battery pack 20 can move more easily on the roller 111 in the direction indicated by arrow y, and can be pulled more easily by the push-pull assembly 300 from the installation position on the multi-layer rack onto the roller 111.

[0042] In the battery pack mounting and dismounting device 10 provided in this application embodiment, mounting grooves 110 are provided on both sides of the base 100, and multiple rollers 111 are provided on the mounting grooves 110, so that the multiple rollers 111 can support the battery pack 20. Furthermore, by sliding the push-pull assembly 300 on the base 100 and detachably connecting it to the battery pack 20, and by providing a drive assembly 200 to drive the push-pull assembly 300 to slide on the base 100, the push-pull assembly 300 can drive the battery pack 20 to move on the rollers 111, and cause the rollers 111 to rotate during the movement of the battery pack 20. Thus, [the following is unclear and likely refers to a different application:] ... This not only avoids personal safety hazards caused by manual disassembly and assembly of the battery pack 20, but also, because the friction of the battery pack 20 moving on the multiple rollers 111 is very small, the resistance of the battery pack 20 moving on the rollers 111 is greatly reduced compared to sliding directly on the base 100. This makes the battery pack 20 move faster and can be quickly pushed from the rollers 111 to the installation position by the push-pull component 300, and can also be quickly pulled from the installation position to the rollers 111 by the push-pull component 300, thereby quickly realizing the installation and disassembly of the battery pack 20 and improving the installation and disassembly efficiency of the battery pack 20.

[0043] In some embodiments, please continue reading Figure 1 Two openings 101 can be made on the side of the base 100. By extending the two forklift arms of the forklift into the two openings 101 respectively, the forklift can move the battery pack removal and installation device 10 to align the battery pack removal and installation device 10 with the installation position on the multi-layer rack.

[0044] To improve the smoothness of the movement of the battery pack 20 on the roller 111, this application further proposes an implementation method, please refer to the following: Figure 2 Multiple rollers 111 are evenly arranged on the mounting groove 110, and the interval between two adjacent rollers 111 is such that the end of the battery pack 20 facing the push-pull assembly 300 is always supported on the rollers 111 during the movement of the battery pack 20.

[0045] For example, 16 rollers 111 can be provided on each mounting slot 110, and the 16 rollers 111 can be evenly arranged on the mounting slot 110.

[0046] As the battery pack 20 moves on the roller 111 Figure 1 One end a of the battery pack is always supported on the roller 111. That is to say, during the movement of the battery pack 20, the part of the battery pack 20 located on the battery pack disassembly and assembly device 10 is always supported on the roller 111. This can prevent the battery pack 20 from tilting during the movement due to the lack of support from the roller 111 at one end a, and ensure that the battery pack 20 can move smoothly on the roller 111.

[0047] To improve the efficiency of disassembling and assembling roller 111, this application further proposes an implementation method, please refer to the following: Figure 2 and combined Figure 3 , Figure 3 An exploded view of the battery pack disassembly and assembly device provided in the embodiment of this application is shown. The mounting groove 110 is U-shaped. Multiple notches 112 are provided on the two side walls of the mounting groove 110. Support shafts 111a are provided at both ends of the roller 111. The support shafts 111a at both ends are rotatably limited and connected to the two opposite notches 112.

[0048] When installing roller 111, the U-shaped mounting groove 110 allows roller 111 to be directly inserted into notch 112 from above the mounting groove 110, enabling quick assembly of multiple rollers 111. When maintenance or replacement of roller 111 is required, the entire structure can be removed without disassembling the roller; roller 111 can be taken out from above the U-shaped mounting groove 110, enabling quick maintenance or replacement of roller 111.

[0049] The notch 112 can also be set as a U-shaped notch. The U-shaped notch can increase the depth of the notch 112 and reduce the risk that the support shaft 111a will roll out of the notch 112 when the roller 111 rotates.

[0050] By setting notches 112, when assembling the roller 111, the support shafts 111a at both ends of the roller 111 are placed on the two symmetrical notches 112 respectively, so that the roller 111 can be assembled quickly. When disassembling the roller 111, the roller 111 can be removed directly from the notch 112, thus improving the efficiency of the installation and disassembly of the roller 111.

[0051] To improve the stability of the battery pack 20 during installation, this application further proposes an implementation method, please refer to [further details]. Figure 2 and Figure 3 The push-pull assembly 300 includes a push-pull plate 310, which is slidably disposed on the base 100 along the extension direction of the mounting groove 110. The push-pull plate 310 is vertically disposed and connected to the drive assembly 200. The height of the push-pull plate 310 is configured to be greater than half the height of the battery pack 20. The push-pull plate 310 is used to abut against the battery pack 20 and push the battery pack 20 out under the drive of the drive assembly 200.

[0052] The push-pull plate 310 can be perpendicular to the mounting groove 110 so that the push-pull plate 310 can fully abut against one end a of the battery pack 20 when the battery pack 20 is pushed, thereby increasing the contact area between the push-pull plate 310 and the battery pack 20.

[0053] During battery pack 20 installation, the push-pull plate 310 slides on the base 100 in the direction indicated by arrow x under the drive of the drive assembly 200. When the push-pull plate 310 abuts against one end a of the battery pack, it can push the battery pack 20 to move in the same direction on the roller 111. When the height of the push-pull plate 310 is configured to be greater than half the height of the battery pack 20, the contact surface between the push-pull plate 310 and the battery pack 20 can be further increased when the push-pull plate 310 abuts against one end a of the battery pack, making the pushing force distribution of the push-pull plate 310 more uniform and avoiding damage to the casing or internal cells of the battery pack 20 due to local stress concentration. Furthermore, when the center of gravity of the battery pack 20 shifts due to uneven distribution of internal cells, the push-pull plate 310, which makes large-area contact with the battery pack 20, can maintain the stability of the pushing direction, prevent the battery pack 20 from tilting during movement, and improve the stability of the push-pull plate 310 in pushing the battery pack 20 off the roller 111.

[0054] To reduce the risk of deformation of the push-pull plate 310, this application further proposes an implementation method, please refer to [further details]. Figure 2 The push-pull assembly 300 also includes a support plate 320. A push-pull plate 310 is vertically mounted on the support plate 320. The support plate 320 is slidably mounted on the base 100 along the extension direction of the mounting groove 110 and is connected to the drive assembly 200. The support plate 320 is used to drive the push-pull plate 310 to slide relative to the base 100 under the drive of the drive assembly 200. A support plate 330 is connected between the side of the push-pull plate 310 away from the battery pack 20 and the support plate 320. The support plate 330 is perpendicular to the push-pull plate 310.

[0055] The push-pull plate 310 can be detachably connected to the battery pack 20. Specifically, please refer to... Figure 1 A first limiting groove 311 can be set at both ends of the push-pull plate 310, and a second limiting groove 21 can be set on both sides of the battery pack 20. In this way, by setting two U-shaped limiting members 312 and inserting each limiting member 312 into the first limiting groove 311 and the second limiting groove 21 respectively, the push-pull plate 310 and the battery pack 20 can be connected and fixed.

[0056] Driven by the drive assembly 200, the support plate 320 can slide on the base 100 in the direction indicated by arrow x or arrow y, and drive the push-pull plate 310 to slide in the same direction. This allows the push-pull plate 310 to abut against one end a of the battery pack and push the battery pack 20 to move in the direction indicated by arrow x when the battery pack 20 is installed, and the push-pull plate 310 to pull the battery pack 20 to move in the direction indicated by arrow y when the battery pack 20 is removed.

[0057] Support plate 330 can be like Figure 2The support plate 330 is vertically mounted on the support plate 320 and is fixedly connected to both the push-pull plate 310 and the support plate 320. During the process of the push-pull plate 310 pushing the battery pack 20 to move in the direction shown by arrow x, the support plate 330 provides support to the push-pull plate 310, preventing it from tilting backward due to the opposing thrust of the battery pack 20. During the process of the push-pull plate 310 pulling the battery pack 20 to move in the direction shown by arrow y, the support plate 330 provides tension to the push-pull plate 310, preventing it from tilting forward due to the opposing tension of the battery pack 20. In summary, the support plate 330 can improve the deformation resistance of the push-pull plate 310 and reduce the risk of deformation.

[0058] Preferably, multiple support plates 330 can be provided and evenly distributed on the bearing plate 320. In this way, the multiple support plates 330 can provide more and more uniform support and tension for the push-pull plate 310, thereby improving the deformation resistance of the push-pull plate 310.

[0059] To improve the compatibility of the battery pack disassembly and assembly device 10, this application further proposes an embodiment, please refer to [further details]. Figure 2 and Figure 3 and combined Figure 4 , Figure 4 An exploded view of the drive assembly provided in an embodiment of this application is shown. As shown in the figure, the drive assembly 200 includes a lead screw 210 and a handwheel 220. The lead screw 210 is disposed on the base 100 and parallel to the mounting groove 110. The push-pull assembly 300 is sleeved on the lead screw 210. The handwheel 220 is connected to one end of the lead screw 210 and is suspended outside the base 100. The handwheel 220 is used to drive the lead screw 210 to rotate when it rotates, thereby driving the push-pull assembly 300 to slide on the base 100.

[0060] Please see Figure 4 The drive assembly 200 may also include a nut seat 230, which is sleeved on the lead screw 210. When the lead screw 210 rotates clockwise, the nut seat 230 can move toward one end of the lead screw 210, that is, move in the direction shown by arrow x; when the lead screw 210 rotates counterclockwise, the nut seat 230 can move toward the other end of the lead screw 210, that is, move in the direction shown by arrow y.

[0061] Please see Figure 3 The push-pull assembly 300 may include a support platform 340, which is directly fixed on the nut seat 230 and slidably connected to the base 100, so that the push-pull assembly 300 can slide on the base 100 in the direction indicated by arrow x or arrow y under the drive of the nut seat 230.

[0062] The lead screw 210 can not only ensure that the push-pull assembly 300 slides in the direction indicated by arrow x or arrow y, but also prevent the push-pull assembly 300 from sliding when it stops rotating, thus realizing the controllable sliding of the push-pull assembly 300.

[0063] In some embodiments, a motor can be used to drive the lead screw 210 to rotate. Specifically, by connecting the output end of the motor to one end of the lead screw 210, the lead screw 210 can be driven to rotate when the motor is powered on. However, when using a motor drive, a power supply with a specific voltage needs to be connected to the battery pack disassembly and assembly device 10. This means that in some application scenarios, there may not be a suitable power supply to the battery pack disassembly and assembly device 10, resulting in the battery pack disassembly and assembly device 10 failing to operate. In addition, since the friction between the battery pack 20 and the roller 111 is small, when the motor drives the lead screw 210 to rotate, and the motor speed is too fast, the sliding speed of the push-pull assembly 300 may be too fast, causing the push-pull assembly 300 to push the battery pack 20 into the installation position too quickly. This may cause the battery pack 20 to collide with the multi-layer shelf, affecting the safety of the battery pack 20.

[0064] Based on this, this embodiment of the application sets up a handwheel 220 and connects one end of the handwheel 220 to the lead screw 210. When the battery pack assembly / disassembly personnel manually turn the handwheel 220, the handwheel 220 can drive the lead screw 210 to rotate, solving the problem that the battery pack assembly / disassembly device 10 cannot work due to the lack of a suitable power supply. Furthermore, since the friction between the battery pack 20 and the roller 111 is small, the battery pack 20 can be easily moved quickly by manually turning the handwheel 220. On this basis, the battery pack assembly / disassembly personnel can control the moving speed of the battery pack 20 by controlling the speed of turning the handwheel 220. If the battery pack 20 moves too fast, reducing the speed of turning the handwheel 220 can prevent the battery pack 20 from colliding due to excessive speed. Specifically, when the handwheel 220 is turned clockwise, the handwheel 220 can drive the lead screw 210 to rotate clockwise, and when the handwheel 220 is turned counterclockwise, the handwheel 220 can drive the lead screw 210 to rotate counterclockwise. Furthermore, when handwheel 220 is... Figure 2 When the handwheel 220 is suspended outside the base 100, the base 100 will not obstruct the rotation of the handwheel 220, ensuring that the handwheel 220 can be smoothly rotated by the battery pack installation and removal personnel.

[0065] In some embodiments, please continue reading Figure 4 The handwheel 220 can be connected to the lead screw 210 via the coupling 240 and the drive shaft 250.

[0066] When the push-pull assembly 300 has multiple structures, its weight is relatively large. When the push-pull assembly 300 is mounted on the drive assembly 200 and driven by the drive assembly 200 to slide on the base 100, it will place a significant burden on the drive assembly 200, causing the drive assembly 200 to deform. Therefore, in order to reduce the deformation of the drive assembly 200, this application further proposes an embodiment, please refer to the following. Figure 2 and Figure 3 The base 100 has two parallel guide rails 120 arranged between two mounting slots 110. Each guide rail 120 is provided with a slider 121. Each slider 121 is fixedly connected to the push-pull assembly 300. Each slider 121 is used to support the push-pull assembly 300. The push-pull assembly 300 is also used to slide on the guide rail 120 via the slider 121.

[0067] When the push-pull assembly 300 slides under the drive of the drive assembly 200, the two guide rails 120 can guide the sliding direction of the push-pull assembly 300, so that the push-pull assembly 300 can slide on the base 100 in the direction shown by arrow x or arrow y.

[0068] Each guide rail 120 can be like Figure 3 Two sliders 121 are provided to distribute the pressure of the push-pull assembly 300, thereby reducing the local pressure of the push-pull assembly 300 on the guide rail 120. Of course, only one slider 121 can be provided on each guide rail 120.

[0069] Specifically, such as Figure 2 As shown, when the push-pull assembly 300 includes a support platform 340, the bottom of the support platform 340 can be fixedly connected to the slider 121, so that the push-pull assembly 300 is supported on the slider 121. In this case, all the pressure of the push-pull assembly 300 is applied to the slider 121, which can prevent the push-pull assembly 300 from applying pressure to the drive assembly 200 and reduce the deformation of the drive assembly 200.

[0070] In some embodiments, please continue reading Figure 4 A mounting base 130 can be arranged parallel to each other between the two mounting slots 110 of the base 100. The mounting base 130 has mounting portions 131 protruding on both sides. By setting two guide rails 120 on the two mounting portions 131 of the mounting base 130 respectively, the installation accuracy of the guide rails 120 can be improved.

[0071] Please continue reading. Figure 2 and Figure 3To fix the drive assembly 200 to the base 100, a baffle 140 and a first support 150 can be respectively provided at both ends of the base 100, and the drive assembly 200 can be fixed to the base 100 by the baffle 140 and the first support 150. For example, when the drive assembly 200 includes a lead screw 210, a second support 160 can be provided on the baffle 140, and the lead screw 210 can be fixedly set on the base 100 by supporting it on the first support 150 and the second support 160. When the push-pull assembly 300 slides on the base 100, the baffle 140 and the first support 150 can respectively prevent the push-pull assembly 300 sleeved on the lead screw 210 from disengaging from both ends of the lead screw 210.

[0072] For further information, please refer to [link / reference]. Figure 4 A first elastic element 170 can be provided on the side of the baffle 140 facing the first support 150, and a second elastic element 180 can be provided on the base 100 on the side of the first support 150 facing the baffle 140. Both the first elastic element 170 and the second elastic element 180 can be made of rubber pads with high elasticity and high damping. The first elastic element 170 can abut against the push-pull assembly 300 when it slides to one end of the base 100 in the direction of arrow x, preventing rigid collision between the push-pull assembly 300 and the baffle 140. The second elastic element 180 can abut against the push-pull assembly 300 when it slides to the other end of the base 100 in the direction of arrow y, preventing rigid collision between the push-pull assembly 300 and the first support 150. Furthermore, the first elastic element 170 and the second elastic element 180 can absorb the impact kinetic energy of the push-pull assembly 300, providing cushioning and shock absorption.

Claims

1. A battery pack disassembly and assembly device, characterized in that, The battery pack disassembly and assembly device includes: The base has mounting slots on opposite sides, and multiple rollers are arranged on each mounting slot. The rollers are used to support the battery pack. The drive assembly is mounted on the base. A push-pull assembly is slidably disposed on the base along the extension direction of the mounting groove and connected to the drive assembly. The push-pull assembly is used to detachably connect to the battery pack so as to drive the battery pack to move on the roller under the drive of the drive assembly, and to make the roller rotate as the battery pack moves.

2. The battery pack disassembly and assembly device according to claim 1, characterized in that, The multiple rollers are evenly arranged on the mounting slot, and the spacing between two adjacent rollers is such that the end of the battery pack facing the push-pull assembly is always supported on the roller during the movement of the battery pack.

3. The battery pack disassembly and assembly device according to claim 1, characterized in that, The mounting groove is U-shaped, and multiple notches are provided on the two side walls of the mounting groove. The roller is provided with support shafts at both ends, and the support shafts at both ends are rotatably limited and connected to the two opposite notches.

4. The battery pack disassembly and assembly device according to claim 1, characterized in that, The push-pull assembly includes a push-pull plate, which is slidably disposed on the base along the extension direction of the mounting groove. The push-pull plate is vertically disposed and connected to the drive assembly. The height of the push-pull plate is configured to be greater than half the height of the battery pack. The push-pull plate is used to abut against the battery pack and push the battery pack out under the drive of the drive assembly.

5. The battery pack disassembly and assembly device according to claim 4, characterized in that, The push-pull assembly further includes a support plate, which is vertically disposed on the support plate. The support plate is slidably disposed on the base along the extension direction of the mounting groove and is connected to the drive assembly. The support plate is used to drive the push-pull plate to slide relative to the base under the drive of the drive assembly; A support plate is connected between the side of the push-pull plate away from the battery pack and the carrier plate, and the support plate is perpendicular to the push-pull plate.

6. The battery pack disassembly and assembly device according to claim 4, characterized in that, The push-pull plate has a first limiting groove at both ends, and a limiting member is inserted in the first limiting groove. The limiting member is also used to connect with the second limiting grooves on both sides of the battery pack to connect and fix the push-pull plate to the battery pack.

7. The battery pack disassembly and assembly device according to claim 1, characterized in that, The drive assembly includes a lead screw and a handwheel. The lead screw is mounted on the base and parallel to the mounting groove. The push-pull assembly is sleeved on the lead screw. The handwheel is connected to one end of the lead screw and is suspended outside the base. The handwheel is used to drive the lead screw to rotate when rotated, thereby driving the push-pull assembly to slide on the base.

8. The battery pack disassembly and assembly device according to claim 1, characterized in that, The base has two parallel guide rails arranged between the two mounting slots. Each guide rail is provided with a slider. Each slider is fixedly connected to the push-pull assembly. Each slider is used to support the push-pull assembly. The push-pull assembly is also used to slide on the guide rail via the slider.

9. The battery pack disassembly and assembly device according to claim 8, characterized in that, The base has a mounting seat arranged parallel between the two mounting slots, and mounting portions are provided on both sides of the mounting seat. The two guide rails are respectively arranged on the two mounting portions.

10. The battery pack disassembly and assembly device according to claim 8, characterized in that, The base is provided with a baffle and a support at both ends, and the drive assembly is fixed to the base by the baffle and the support. The baffle is provided with a first elastic element on the side facing the support, and the first elastic element is used to abut against the push-pull assembly when the push-pull assembly moves to one end of the base; The base is provided with a second elastic element on the side of the support facing the baffle. The second elastic element is used to abut against the push-pull assembly when the push-pull assembly moves to the other end of the base.

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