Battery pack assembling and disassembling device inside energy storage container

Abstract

The application discloses an energy storage container internal battery assembling and disassembling device, which comprises a vehicle body, a controller arranged in the vehicle body, a vertical frame arranged at the front end of the vehicle body, a vertical lifting structure arranged at the center of the vertical frame, a bottom front balance structure arranged at the bottom of the vehicle body, a lifting platform arranged on the vertical lifting structure, a front connecting bearing structure arranged at the front end of the lifting platform, a battery translation driving structure arranged on the front connecting bearing structure and a horizontally forwardly extending battery tray arranged at the front end of the battery translation driving structure, a main suspension arm arranged on the battery translation driving structure, the main suspension arm extending forwardly and the front end of the main suspension arm being arranged above the center of the battery tray, and a battery group pulling structure arranged on the main suspension arm and used for pulling and holding a battery group handle. The application is suitable for the assembling and maintenance and disassembly of the battery group in the energy storage container, and solves the problems of poor safety, low efficiency, time-consuming and labor-consuming of manual operation, and is especially suitable for the management of a large number of energy storage containers.

Description

Technical Field

[0001] This invention relates to the field of robotics, and more particularly to a battery assembly and unloading device inside an energy storage container. Background Technology

[0002] With the development and popularization of new energy sources, energy storage technology has become a key means to solve the balance between energy supply and demand and the stability of the power grid. An energy storage container is a device used for centralized storage and management of energy, containing a large number of battery packs. The assembly and disassembly of the battery packs is a crucial step in the production, installation, maintenance, and dismantling of energy storage containers.

[0003] Currently, the assembly, maintenance, and disassembly of battery packs inside energy storage containers mainly rely on manual operation. While this method meets the operational requirements to some extent, it has the following problems:

[0004] 1. Safety issues: When assembling, repairing and disassembling battery packs inside energy storage containers, operators need to face potential hazards such as high voltage and heavy equipment, which can easily lead to safety accidents and threaten the lives of operators.

[0005] 2. Low efficiency: Due to the limitations of manual operation, the speed and efficiency of battery pack assembly, maintenance, and disassembly are relatively low. In scenarios involving the management of large quantities of energy storage containers, insufficient human resources and low work efficiency will lead to delays in the overall project schedule.

[0006] 3. Time-consuming and labor-intensive: During the manual assembly, repair, and disassembly of battery packs, operators need to maintain a high level of concentration for extended periods, which can easily lead to fatigue and affect work quality. Furthermore, manual operation consumes significant time and manpower, increasing the overall project cost.

[0007] 4. Low level of automation: Currently, some automated equipment is available on the market for the assembly and disassembly of battery packs, but these devices are often unable to adapt to the small space and complex environment inside energy storage containers, so the level of automation still needs to be improved.

[0008] In summary, in view of the problems existing in the assembly, maintenance and disassembly of battery packs inside energy storage containers, there is an urgent need for an assembly and disassembly device with a high degree of automation, strong safety, high efficiency and adaptability to confined spaces. Therefore, we have specially developed a battery assembly and disassembly device inside energy storage containers to meet the above requirements. Summary of the Invention

[0009] To address the aforementioned existing problems, this invention provides a battery assembly and disassembly device for an energy storage container. Addressing the challenges of limited space and complex environment within energy storage containers, this invention aims to resolve issues such as poor safety, low efficiency, and time-consuming and labor-intensive manual operations required for battery assembly, maintenance, and disassembly. It is particularly suitable for managing large quantities of energy storage containers, and by configuring the device within each container, it can significantly improve the automation of energy storage container management.

[0010] The technical solution of this invention is as follows:

[0011] This invention provides a battery assembly and unloading device for an energy storage container, comprising a controller, a vertical frame, a vehicle body, a lifting drive structure, a lifting platform, a front support structure, a main cantilever, a battery translation drive structure, a battery pack traction structure, a battery tray, and a bottom forward extension balancing structure. The controller is located within the vehicle body. The front end of the vehicle body has a vertical frame, and the center of the vertical frame has a vertical lifting structure. The bottom of the vehicle body has a bottom forward extension balancing structure for forward extension support. The vertical lifting structure has a lifting platform controlled by the controller and coordinating with the stroke of the bottom forward extension balancing structure. The upward stroke of the lifting platform is in the same time period as the forward extension stroke of the bottom forward extension balancing structure, and the downward stroke of the lifting platform is in the same time period as the backward retraction stroke of the bottom forward extension balancing structure. The front end of the lifting platform has a front support structure, which has a battery translation drive structure and a horizontally forward-extending battery tray at its front end. The battery translation drive structure has a main cantilever, which extends forward and its front end is located above the center of the battery tray. The main cantilever has a battery pack traction structure for pulling and gripping the battery pack handle.

[0012] Furthermore, the bottom forward extension balance structure includes extension support blocks and electric push rods. Electric push rods are respectively provided on the left and right sides of the bottom of the vehicle body. The two electric push rods extend horizontally forward and extend and retract synchronously. The front ends of the two electric push rods pass through the vertical frame and are provided with extension support blocks.

[0013] Furthermore, the bottom of the extension support block is provided with a first pressure sensor for detecting the interaction force between the extension support block and the ground.

[0014] Furthermore, the electric push rod is positioned with its rear end higher and its front end lower, and the axis of the electric push rod has an angle of 0-5° with the horizontal plane. When the electric push rod is in its maximum extended state, the bottom of the extension support block contacts the ground.

[0015] Furthermore, the vertical lifting structure includes a first servo motor, a right-angle reducer, a vertical lead screw, and a vertical guide bar. A vertically extending vertical lead screw is provided in the center of the interior of the vertical frame. The lower end of the vertical lead screw is rotatably connected to the bottom of the vertical frame, and the upper end extends out of the upper part of the vertical frame and is connected to the right-angle reducer at the upper end of the vertical frame. The first servo motor is connected to one side of the right-angle reducer. The first servo motor drives the vertical lead screw to rotate through the right-angle reducer. A lifting platform is threaded on the vertical lead screw. The lifting platform is located inside the vertical frame, and vertical guide bars pass through its left and right ends respectively. The upper and lower ends of the vertical guide bars are respectively embedded in the two ends of the vertical frame.

[0016] Furthermore, the battery translation drive structure includes a horizontal lead screw, a right end plate, a transmission belt, pulleys, a left end plate, a second servo motor, a guide rail, and a slider. The upper left and right ends of the front bearing structure are respectively provided with a horizontally extending left end plate and a right end plate. A rolling horizontal lead screw is provided between the left end plate and the right end plate. The part of the left end plate below the horizontal lead screw is provided with a second servo motor. The main shaft of the second servo motor and the left end of the horizontal lead screw extend to the left of the left end plate and are respectively provided with pulleys. A transmission belt is provided between the two pulleys. The second servo motor drives the horizontal lead screw to rotate through the belt drive. The rear part of the main cantilever is threaded into the horizontal lead screw. A slider is provided on the lower side of the part of the main cantilever in front of the horizontal lead screw. The lower part of the slider is provided with guide rails running through it on both sides. The guide rails are set on the front bearing structure and extend to the left and right.

[0017] Furthermore, the battery pack pulling structure includes an electromagnetic telescopic actuator, a cantilever connecting plate, a front guide rod, a sleeve bending block, and a cantilever support plate. The front end of the main cantilever bends downward and has a horizontally extending cantilever support plate at its lower end. The upper side of the middle part of the main cantilever has a horizontally forward extending cantilever connecting plate. A front guide rod is provided between the cantilever connecting plate and the cantilever support plate. A sleeve bending block for hanging on the battery pack handle is nested on the front guide rod. The rear end of the sleeve bending block passes through the bent part of the main cantilever and is pierced by the rear guide rod on the rear side of the main cantilever. An electromagnetic telescopic actuator is provided in the middle part of the main cantilever. The telescopic end of the electromagnetic telescopic actuator faces downward and is connected to the middle part of the sleeve bending block. The electromagnetic telescopic actuator drives the sleeve bending block to move up and down.

[0018] Furthermore, the front end of the sleeve bending block has a horizontal plate-like structure in the middle, and the left and right sides of the front end are bent downward to form a hook-shaped bending structure for hooking onto the battery pack handle from top to bottom. A second pressure sensor is provided on the inner side of the hook-shaped bending part of the sleeve bending block.

[0019] Furthermore, the vehicle body adopts an AGV trolley, and a counterweight block is provided at the rear of the vehicle body to balance the weight at both ends of the vehicle body.

[0020] Furthermore, the controller is electrically connected to the vehicle body's control module, the first servo motor, the second servo motor, the first pressure sensor, and the second pressure sensor, respectively. The controller communicates with the vehicle body's control module and controls the starting, stopping, speed, and steering of the first and second servo motors, respectively. The controller also receives pressure sensing signals from the first and second pressure sensors, respectively.

[0021] Because the present invention employs the above-mentioned technology, its specific positive and beneficial effects compared with the prior art are as follows:

[0022] 1. This invention improves the safety of battery assembly and disassembly inside energy storage containers. By using robotic arms for battery pack assembly, maintenance, and disassembly, it avoids operators directly facing potential hazards such as high voltage and heavy equipment, thereby reducing the probability of safety accidents and ensuring the safety of operators.

[0023] 2. This invention improves the efficiency of battery assembly and disassembly within energy storage containers. The robotic arm for battery assembly and disassembly inside the energy storage container is highly automated, capable of completing battery pack assembly, repair, and disassembly tasks in a short time. Compared to traditional manual operation methods, the robotic arm can significantly improve overall work efficiency and reduce the risk of project delays.

[0024] 3. This invention effectively saves time and labor costs. The robotic arm inside the energy storage box can automatically assemble, repair, and disassemble battery packs, greatly reducing operator fatigue. Simultaneously, its high efficiency also helps reduce project time and labor costs, saving resources for the company.

[0025] 4. This invention effectively improves the automation level of battery pack assembly and disassembly inside energy storage containers. Specifically designed for the confined space and complex environment inside energy storage containers, this invention enables the battery packs to be pulled from the battery racks to the battery trays within a limited space, and then transported to the door of the energy storage container. This allows for rapid assembly and disassembly of the battery packs, significantly improving the automation level of energy storage container management for large-scale applications. It is suitable for the management of various types of energy storage containers, such as those used by large power companies, new energy vehicle charging stations, and renewable energy power generation systems. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of the present invention in a usage scenario;

[0027] Figure 2 yes Figure 1 Right view of the structure shown;

[0028] Figure 3 yes Figure 1 Front view of the structure shown;

[0029] Figure 4 This is a schematic diagram of the structure of the present invention;

[0030] Figure 5 yes Figure 4 Front view of the structure shown;

[0031] Figure 6 yes Figure 4 Right view of the structure shown;

[0032] Figure 7 This is a structural schematic diagram of the present invention from a certain upward viewing angle.

[0033] In the diagram: 1-Battery bracket, 2-Plug-in interface, 3-Lifting upright plate, 4-Vehicle body, 5-Bottom block, 6-Wheel, 7-Supporting corner plate, 8-Battery tray, 9-Base plate, 10-Extension support block, 11-Vertical lead screw, 12-Vertical guide bar, 13-First servo motor, 14-Right angle reducer, 15-Top plate, 16-Horizontal lead screw, 17-Right end plate, 18-Guide rail, 19-Bearing frame, 20-Electromagnetic telescopic actuator, 21-Cantilever connecting plate, 22-Front guide rod, 23-Bending block, 24-Cantilever support plate, 25-Transmission belt, 26-Pulley, 27-Left end plate, 28-Lifting platform, 29-Swing block, 30-Rear guide rod, 31-Main cantilever, 32-Electric push rod, 33-Second servo motor, 34-Connecting cantilever. Detailed Implementation

[0034] Example 1:

[0035] like Figures 1-7As shown, this invention provides a battery assembly and disassembly device for an energy storage container. It is designed for energy storage containers with a central corridor and battery racks 1 on the left and right sides for mounting battery packs. The battery packs on the racks 1 are required to be laid flat on supporting corner plates 7. The battery pack connection interface is a plug-in type, plugged into the battery rack 1 near the inner wall of the energy storage container. The device mainly includes a controller, a vertical frame, a vehicle body 4, a lifting drive structure, a lifting platform 28, a front support structure, a main cantilever 31, a battery translation drive structure, a battery pack pulling structure, a battery tray 8, and a bottom forward-extending balancing structure. The vehicle body 4 uses an AGV (Automated Guided Vehicle) trolley, which serves as a navigation and mobile support structure and also provides positioning. Instead of using additional visual sensors or laser rangefinders to obtain spatial information within the energy storage container, the device relies on the AGV's own positioning function to determine the location of the battery rack 1 containing the battery pack to be assembled or disassembled. The controller is located inside the vehicle body 4, but to ensure the independence of the AGV system... To avoid introducing too many signals that could easily cause system malfunctions, the control module and controller of the AGV are set to be relatively independent but can communicate with each other through electrical connection. The front of the vehicle body 4 is equipped with a vertical frame, and a vertical lifting structure is located in the center of the vertical frame. The bottom of the vehicle body 4 is equipped with a bottom forward extension balance structure for forward extension support. The vertical lifting structure is equipped with a lifting platform 28 that is controlled by the controller and coordinates with the stroke of the bottom forward extension balance structure. The upward stroke of the lifting platform 28 and the forward extension stroke of the bottom forward extension balance structure are in the same time period. The downward stroke of the lifting platform 28 and the backward retraction stroke of the bottom forward extension balance structure are in the same time period. The front of the lifting platform 28 is equipped with a front bearing structure. The front bearing structure is equipped with a battery translation drive structure and a horizontally forward-extending battery tray 8 at the front. The battery translation drive structure is equipped with a main cantilever 31. The main cantilever 31 extends forward and its front end is located above the center of the battery tray 8. The main cantilever 31 is equipped with a battery pack pulling structure for pulling and gripping the battery pack handle.

[0036] Usage: The entire device is positioned at the end of the central corridor of the energy storage container, specifically at a designated charging station. The rear of vehicle body 4 has a charging interface. Vehicle body 4 automatically connects to the charging interface when reversed to this charging station. The front of vehicle body 4 always faces the front of the central corridor of the energy storage container, i.e., the doorway. This facilitates the convenient transport of battery packs to the container door during installation and removal. Since an AGV (Automated Guided Vehicle) is used as vehicle body 4, a navigation system can be deployed in the central corridor of the energy storage container. The AGV's navigation and guidance system can accurately determine the position of the battery bracket 1, where the battery pack needs to be removed. When the AGV stops at this battery bracket 1, the battery packs are positioned on both sides of the battery tray. The battery tray is lifted to the required height by a vertical lifting structure. There are two scenarios: one is that the required battery pack is relatively high, in which case the bottom front... After the electric push rod 32 in the expansion balance structure extends, the lifting platform 28 rises to the required height. This is for the stability of the entire device. The cantilevered battery tray is provided with stable support by the bottom front expansion balance structure. Alternatively, if the battery pack to be disassembled is at a lower height, the controller needs to ensure that the electric push rod 32 in the bottom front expansion balance structure is fully retracted before the controller can move the lifting platform 28 down. This is especially important when disassembling the bottommost battery pack. This is to prevent the bottom front expansion balance structure from obstructing the downward movement of the battery tray. In particular, the entire device does not need the bottom front expansion balance structure for balancing at this time. The specific action point of the bottom front expansion balance structure is determined by the center of gravity height of the entire device under maximum load. That is, the center of gravity height under the maximum safe load of the entire device is the safe height. The lifting height of the lifting platform 28 under load must exceed this height only after the electric push rod 32 in the bottom front expansion balance structure extends.

[0037] The upper surface of the battery tray is flush with or slightly lower than the lower surface of the battery pack to be disassembled. Then, the main cantilever 31 moves towards the battery pack under the action of the battery translation drive structure. At this time, in the battery pack pulling structure, the sleeve bending block 23 moves away from the cantilever tray 24 and abuts against the cantilever connecting plate 21 under the action of the electromagnetic telescopic actuator 20. At this time, the projections of the sleeve bending block 23 and the battery pack to be disassembled on the vertical plane are one above the other. Then, after the main cantilever 31 moves towards the battery pack, the sleeve bending block 23 falls onto the cantilever tray 24 under the extension action of the electromagnetic telescopic actuator 20. At this time, the bent part of the sleeve bending block 23 is not hooked with the handle of the battery pack. The sleeve bending block 23 presses on the handle of the battery pack. The bending of the sleeve bending block 23... Within the handle, after the main cantilever 31 moves away from the battery pack, the bent part of the sleeve bend block 23 pulls the handle of the battery pack. As the main cantilever 31 moves, the battery pack is pulled from the battery bracket 1 onto the battery tray. Then, the lifting platform 28 is lowered to a safe height without the need for the bottom forward extension balance structure, and then moved forward to the door of the energy storage container for removal by staff. The entire process does not require manual entry into the energy storage container. The above process only applies to the battery pack disassembly process, i.e., the maintenance phase. If it is the battery pack installation, the operation steps are reversed. However, if the lifting platform 28 is raised to a height exceeding the safe height, the electric push rod 32 in the bottom forward extension balance structure must be extended.

[0038] Specific details:

[0039] The vertical frame includes a lifting plate 3, a top plate 15, and a bottom plate 9. The top plate 15 and the bottom plate 9 are distributed one above the other, and a lifting plate 3 is provided between each end. The bottom plate 9 has a groove on the front side of the middle section, which facilitates the extension of the support block 10 and its snapping in when the electric push rod 32 is fully retracted, so as not to affect the up and down movement of the battery tray 8.

[0040] The bottom forward extension balance structure includes an extension support block 10 and an electric push rod 32. Electric push rods 32 are respectively provided on the left and right sides of the bottom block 5 at the rear end of the vehicle body 4. The two electric push rods 32 extend horizontally forward and their front ends are connected to the bottom plate 9 of the vertical frame through clamps. The two electric push rods 32 are controlled by the controller to extend and retract synchronously. The front ends of the two electric push rods 32 pass through the vertical frame and are provided with extension support blocks 10. At the bottom of the extension support block 10, there is a first pressure sensor for detecting the interaction force between the extension support block 10 and the ground, so that the controller can determine whether to drive the electric push rods 32 to retract based on the load situation transmitted by the AGV.

[0041] In order to better utilize the extension support block 10, the electric push rod 32 is positioned with its rear end higher and its front end lower. The axis of the electric push rod 32 has an angle of 0-5° with the horizontal plane. When the electric push rod 32 is in its maximum extension state, the bottom of the extension support block 10 contacts the ground.

[0042] The vertical lifting structure includes a first servo motor 13, a right-angle reducer 14, a vertical lead screw 11, and a vertical guide bar 12. A vertically extending vertical lead screw 11 is provided in the center of the vertical frame. The lower end of the vertical lead screw 11 is rotatably connected to the bottom of the vertical frame, and the upper end extends out of the upper part of the vertical frame and is connected to the right-angle reducer 14 at the upper end of the vertical frame. The first servo motor 13 is connected to one side of the right-angle reducer 14. The first servo motor 13 drives the vertical lead screw 11 to rotate through the right-angle reducer 14. A lifting platform 28 is nested on the vertical lead screw 11. The lifting platform 28 is located inside the vertical frame, and the vertical guide bars 12 are respectively inserted through the left and right ends. The upper and lower ends of the vertical guide bars 12 are respectively embedded in the two ends of the vertical frame.

[0043] The battery translation drive structure includes a horizontal lead screw 16, a right end plate 17, a transmission belt 25, a pulley 26, a left end plate 27, a second servo motor 33, and a support sliding structure. The upper left and right ends of the front bearing structure are respectively provided with a horizontally extended left end plate 27 and a right end plate 17. A rolling horizontal lead screw 16 is provided between the left end plate 27 and the right end plate 17. The part of the left end plate 27 below the horizontal lead screw 16 is provided with a second servo motor 33. The main shaft of the second servo motor 33 and the left end of the horizontal lead screw 16 extend to the left of the left end plate 27 and are respectively provided with pulleys 26. A transmission belt 25 is provided between the two pulleys 26. The second servo motor 33 drives the horizontal lead screw 16 to rotate through the belt drive. The rear part of the main cantilever 31 is nested on the horizontal lead screw 16. A support sliding structure is provided between the main cantilever 31 and the front bearing structure.

[0044] The supporting sliding structure includes a guide rail 18 and a slider. The guide rail 18 is mounted on the front bearing structure and extends to the left and right. The upper part of the guide rail 18 is nested with a slider for left and right sliding.

[0045] The main cantilever 31 has a front end that bends downward and a rear end that has a swing block 29. The swing block 29 is threadedly nested on the horizontal lead screw 16. This arrangement is to better drive the main cantilever 31 to move left and right by the horizontal lead screw 16.

[0046] The battery pack pulling structure includes an electromagnetic telescopic actuator 20, a cantilever connecting plate 21, a front guide rod 22, a rear guide rod 30, a sleeve bending block 23, and a cantilever support plate 24. The lower end of the main cantilever 31 is provided with a horizontally extending cantilever support plate 24. The upper side of the middle part of the main cantilever 31 is provided with a horizontally forward extending cantilever connecting plate 21. A front guide rod 22 is provided between the cantilever connecting plate 21 and the cantilever support plate 24. A sleeve bending block 23 for hanging on the battery pack handle is nested on the front guide rod 22. The rear end of the sleeve bending block 23 passes through the curved part of the main cantilever 31 and is pierced by the rear guide rod 30 on the rear side of the main cantilever 31. An electromagnetic telescopic actuator 20 is provided in the middle part of the main cantilever 31. The telescopic end of the electromagnetic telescopic actuator 20 faces downward and is connected to the middle part of the sleeve bending block 23. The electromagnetic telescopic actuator 20 drives the sleeve bending block 23 to move up and down.

[0047] The front end of the sleeve bending block 23 is a horizontal plate-like structure, and the left and right sides of the front end are bent downward to form a hook-shaped bending structure for hooking onto the battery pack handle from top to bottom. A second pressure sensor is provided on the inner side of the hook-shaped bending part of the sleeve bending block 23. The second pressure sensor transmits the pressure signal to the controller. The controller determines whether the sleeve bending block 23 has hooked onto the battery pack handle based on the pressure signal, and decides whether to drive the main cantilever 31 to move away from the battery bracket where the battery pack is located. In other words, the battery pack removal action is determined based on this. For greater accuracy, a second pressure sensor and a third pressure sensor can also be provided on the opposite side walls of the sleeve bending block 23 and the cantilever support plate 24, respectively, so that the controller can more accurately determine the contact state with the battery pack handle and provide more precise control for subsequent actions.

[0048] The front support structure includes a connecting cantilever 34 and a support frame 19. The front end of the lifting platform 28 is provided with connecting cantilever 34 on the left and right sides respectively. The front end of the two connecting cantilever 34 is provided with a support frame 19. The lower front end of the support frame 19 is provided with a battery tray 8, and the upper left and right sides of the rear side are provided with a left end plate 27 and a right end plate 17 respectively.

[0049] Among them, the vehicle body 4 adopts an AGV trolley, and the rear of the vehicle body 4 is equipped with a counterweight block to balance the weight of the front and rear ends of the vehicle body 4.

[0050] The controller is electrically connected to the control module of the vehicle body 4, the first servo motor 13, the second servo motor 33, the first pressure sensor, and the second pressure sensor. The controller communicates with the control module of the vehicle body 4. The controller controls the starting and stopping, speed, and steering of the first servo motor 13 and the second servo motor 33. The controller receives the pressure sensing signals from the first pressure sensor and the second pressure sensor.

Claims

1. A battery assembly and unloading device for an energy storage container, characterized in that: The system includes a controller, a vertical frame, a vehicle body (4), a lifting drive structure, a lifting platform (28), a front support structure, a main cantilever (31), a battery translation drive structure, a battery pack traction structure, a battery tray (8), and a bottom forward extension balance structure. The controller is located inside the vehicle body (4). The front end of the vehicle body (4) has a vertical frame, and the center of the vertical frame has a vertical lifting structure. The bottom of the vehicle body (4) has a bottom forward extension balance structure for forward extension support. The vertical lifting structure has a lifting platform (28) that is controlled by the controller and coordinates with the stroke of the bottom forward extension balance structure. The upward stroke of the lifting platform (28) is in the same time period as the forward extension stroke of the bottom forward extension balance structure, and the downward stroke of the lifting platform (28) is in the same time period as the backward retraction stroke of the bottom forward extension balance structure. The front end of the lifting platform (28) has a front support structure, and the front support structure has a battery translation drive structure and a battery extending horizontally forward at its front end. The battery tray (8) has a main cantilever (31) on its battery translation drive structure. The main cantilever (31) extends forward and its front end is located above the center of the battery tray (8). The main cantilever (31) has a battery pack pulling structure for pulling and gripping the battery pack handle. The bottom forward extension balance structure includes an extension support block (10) and an electric push rod (32). The bottom left and right sides of the vehicle body (4) are respectively provided with electric push rods (32). The two electric push rods (32) extend forward horizontally and synchronously. The two electric push rods (32) are telescopic, with their front ends passing through the vertical frame and having extension blocks (10). The bottom of the extension blocks (10) is provided with a first pressure sensor for detecting the interaction force between the extension blocks (10) and the ground. The electric push rods (32) are placed with their rear ends higher and their front ends lower. The axis of the electric push rods (32) has an angle of 0-5° with the horizontal plane. When the electric push rods (32) are in the maximum extension state, the bottom of the extension blocks (10) is in contact with the ground.

2. The battery assembly and unloading device inside an energy storage container according to claim 1, characterized in that: The vertical lifting structure includes a first servo motor (13), a right-angle reducer (14), a vertical lead screw (11), and a vertical guide bar (12). The vertical frame has a vertically extending vertical lead screw (11) in the center. The lower end of the vertical lead screw (11) is rotatably connected to the bottom of the vertical frame, and the upper end extends out of the upper part of the vertical frame and is connected to the right-angle reducer (14) at the upper end of the vertical frame. The first servo motor (13) is connected to one side of the right-angle reducer (14). The first servo motor (13) drives the vertical lead screw (11) to rotate through the right-angle reducer (14). The vertical lead screw (11) has a lifting platform (28) nested in its threads. The lifting platform (28) is located inside the vertical frame and the left and right ends are respectively penetrated by the vertical guide bar (12). The upper and lower ends of the vertical guide bar (12) are respectively embedded in the two ends of the vertical frame.

3. The battery assembly and unloading device inside an energy storage container according to claim 2, characterized in that: The battery translation drive structure includes a horizontal lead screw (16), a right end plate (17), a transmission belt (25), a pulley (26), a left end plate (27), a second servo motor (33), a guide rail (18), and a slider. The upper left and right ends of the front bearing structure are respectively provided with a horizontally extending left end plate (27) and a right end plate (17). A rolling horizontal lead screw (16) is provided between the left end plate (27) and the right end plate (17). A second servo motor (33) is provided on the part of the left end plate (27) below the horizontal lead screw (16). The left ends of the main shaft and the horizontal lead screw (16) of 33 extend to the left end plate (27) and are respectively provided with pulleys (26). A transmission belt (25) is provided between the two pulleys (26). The second servo motor (33) drives the horizontal lead screw (16) to rotate through the belt drive. The rear part of the main cantilever (31) is nested on the thread of the horizontal lead screw (16). The lower part of the main cantilever (31) in front of the horizontal lead screw (16) is provided with a slider. The lower part of the slider is provided with guide rails (18) running through it on the left and right. The guide rails (18) are set on the front bearing structure and extend to the left and right.

4. The battery assembly and unloading device inside an energy storage container according to claim 3, characterized in that: The battery pack tensioning structure includes an electromagnetic telescopic actuator (20), a cantilever connecting plate (21), a front guide rod (22), a tensioning block (23), and a cantilever support plate (24). The front end of the main cantilever (31) bends downward and has a horizontally extending cantilever support plate (24) at its lower end. The upper side of the middle part of the main cantilever (31) has a horizontally forward extending cantilever connecting plate (21). A front guide rod (22) is provided between the cantilever connecting plate (21) and the cantilever support plate (24). 2) A sleeve-bending block (23) for hanging on the battery pack handle is nested on the upper part. The rear end of the sleeve-bending block (23) passes through the curved part of the main cantilever (31) and is pierced by the rear guide rod (18) on the rear side of the main cantilever (31). An electromagnetic telescopic actuator (20) is provided in the middle of the main cantilever (31). The telescopic end of the electromagnetic telescopic actuator (20) faces downward and is connected to the middle of the sleeve-bending block (23). The electromagnetic telescopic actuator (20) drives the sleeve-bending block (23) to move up and down.

5. The battery assembly and unloading device inside an energy storage container according to claim 4, characterized in that: The front end of the sleeve bending block (23) is a horizontal plate-like structure, and the left and right sides of the front end are bent downward to form a hook-shaped bending structure for hooking onto the battery pack handle from top to bottom. A second pressure sensor is provided on the inner side of the hook-shaped bending part of the sleeve bending block (23).

6. The battery assembly and unloading device inside an energy storage container according to claim 5, characterized in that: The vehicle body (4) is an AGV trolley, and the rear of the vehicle body (4) is provided with a counterweight block for balancing the weight of the front and rear ends of the vehicle body (4).

7. The battery assembly and unloading device inside an energy storage container according to claim 6, characterized in that: The controller is electrically connected to the control module of the vehicle body (4), the first servo motor (13), the second servo motor (33), the first pressure sensor and the second pressure sensor respectively. The controller communicates with the control module of the vehicle body (4). The controller controls the starting and stopping, speed and steering of the first servo motor (13) and the second servo motor (33) respectively. The controller receives the pressure sensing signals of the first pressure sensor and the second pressure sensor respectively.

Images