Stacked energy storage power plant cabinet

Abstract

The application discloses a stacked energy storage power station cabinet, and relates to the technical field of energy storage equipment, and aims to solve the technical problem that the existing stacked energy storage power station cabinet cannot be flexibly adapted to energy storage scenes, comprising a cabinet base, a battery box, a positive terminal, a negative terminal, a cable, a regulation and control box, a square rail executing mechanism and a staggered moving mechanism, through the cooperative action of the square rail executing mechanism and the staggered moving mechanism, the automatic exchange of the position of the cable between the battery boxes is realized, the series-parallel connection mode can be quickly switched according to the dynamic demand of the energy storage scene, the on-site operation of the manufacturer's technical personnel is not needed, the system operation interruption caused by manual power-off disassembly and wiring is avoided, the continuity of power supply is ensured, the safety risks such as short circuit and high-voltage electric shock caused by polarity misconnection are reduced, the adaptation ability of the energy storage system to multiple scenes such as industrial and commercial energy storage and emergency standby power is greatly improved, the traditional cabinet does not need to be replaced as a whole, resource waste and cost investment are reduced, and the application is easier to be popularized and applied on a large scale.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage equipment, more particularly to a stacked energy storage power station cabinet. BACKGROUND

[0002] The stacked energy storage power station cabinet is an energy storage equipment developed based on the modular design concept. The core is to stack the standardized battery modules or independent cabinets in the vertical direction to realize flexible expansion of energy storage capacity and efficient use of space resources. The cabinet integrates energy storage cells, battery management systems and basic protection components, and relies on high-voltage boxes to integrate electric energy confluence, electrical protection and collaborative control functions, which can adapt to various application scenarios such as industrial and commercial energy storage, emergency backup power, off-grid microgrid, etc. While ensuring the stable operation of the energy storage system, the space utilization is greatly improved.

[0003] The current energy storage scenario presents dynamic changes in system parameters. For example, industrial and commercial users need to connect multiple cabinets in parallel during the day to expand the energy storage capacity and store more photovoltaic power. At night, during the low valley period of the power grid, multiple cabinets need to be connected in series to increase the output voltage to meet the grid discharge demand. However, the existing stacked energy storage power station cabinet has a fixed configuration for series and parallel connection at the factory, which cannot be flexibly adjusted according to actual needs. If you want to change the connection mode, you must rely on technical personnel to operate on site, which makes it difficult for system parameter adjustment to quickly respond to changes in scene requirements.

[0004] The existing series and parallel mode adjustment process is complex. The technician needs to first power off the system, then disassemble the high-voltage cable between the cabinets, rewire physically, and finally adjust the battery management system parameters to match the new connection mode. This process not only consumes a lot of manpower and time, but also causes the energy storage system to interrupt operation, affecting the continuity of user electricity consumption. At the same time, manual wiring on site is prone to polarity misconnection, causing safety risks such as short circuit and high-voltage electric shock, which is difficult to meet the application needs of large-scale energy storage projects. In view of this, we propose a stacked energy storage power station cabinet. SUMMARY

[0005] The purpose of the present application is to provide a stacked energy storage power station cabinet to solve the technical problem that the existing stacked energy storage power station cabinet cannot flexibly adapt to the energy storage scenario.

[0006] To solve the above technical problems, the present application provides the following technical scheme: a stacked energy storage power station cabinet, comprising a cabinet base, a battery box is arranged in a stacked manner on the cabinet base, and a high-voltage energy storage converter box is arranged at the top end of the battery box.

[0007] The back of the battery box is provided with a positive terminal and a negative terminal, and the positive terminal or the negative terminal of the battery box is connected by a cable between the battery boxes.

[0008] The back of the cabinet base is provided with a control box, a rectangular rail actuator is arranged in the control box, and a dislocation moving mechanism is fixedly connected to the moving end of the rectangular rail actuator;

[0009] The moving end of the rectangular rail actuator drives the dislocation moving mechanism to move around the rectangular track on the back of the battery box to determine the control position, and then the dislocation moving mechanism exchanges the positions of the cable lines on the positive and negative terminals, so as to realize parallel expansion between the battery boxes or series expansion between the battery boxes.

[0010] Preferably, the rectangular rail actuator comprises a fixed rod group, a sliding assembly, gears, a motor and a chain, the fixed rod group is arranged inside the control box, the sliding assembly is slidingly arranged at one end of the fixed rod group, a plurality of gears are rotatably arranged at the other end of the fixed rod group, the motor is arranged at a position close to the back of one of the gears, the chain is wound around the gears, and one end of the sliding assembly is fixedly connected to the chain.

[0011] Preferably, the fixed rod group comprises a fixed sliding rod and a fixed carrier plate, the fixed sliding rod is symmetrically fixedly arranged at one end inside the control box, and the fixed carrier plate is symmetrically fixedly arranged at the other end inside the control box, the gears are symmetrically rotatably connected to the fixed carrier plate, and the sliding assembly is slidingly arranged on the fixed sliding rod.

[0012] Preferably, the sliding assembly comprises a sliding cylinder, a horizontal plate, a slide, a sliding block and a guide shaft, the sliding cylinder is slidingly sleeved on the fixed sliding rod, the horizontal plate is fixedly connected between the two sliding cylinders, the slide is arranged on the horizontal plate, the sliding block is slidingly arranged on the slide, one end of the guide shaft is fixedly connected to the sliding block, the other end of the guide shaft is fixedly connected to the chain, and the dislocation moving mechanism is fixedly connected to the end of the sliding block away from the guide shaft.

[0013] Preferably, the dislocation moving mechanism comprises a dislocation rail box, a transmission unit, a cross motion unit and an inner support unit, the dislocation rail box is fixedly connected to the moving end of the rectangular rail actuator, the transmission unit is fixedly arranged in the dislocation rail box, the cross motion unit is slidingly arranged on the dislocation rail box, and the inner support unit is arranged on the cross motion unit.

[0014] Preferably, the misaligned track box comprises a box body, a top rail, a middle convex rail groove and a middle concave rail groove, the box body is fixedly connected to the moving end of the straight rail actuator, the top rail is symmetrically and fixedly arranged at the top end of the box body, the middle convex rail groove is arranged at one end of the box body, the middle concave rail groove is arranged at the other end of the box body, the transmission unit is arranged in the box body, the cross movement unit is slidably arranged on the top rail, and the bottom end of the cross movement unit is slidably arranged on the middle convex rail groove and the middle concave rail groove.

[0015] Preferably, the transmission unit comprises a motor, a rotating rod, a belt and a pull groove, the motor is fixedly arranged at one end inside the box body, the rotating rod is rotatably arranged at the other end inside the box body, one end of the belt is connected to the output end of the motor, the other end of the belt is connected to the rotating rod, and the pull groove is arranged on the belt.

[0016] Preferably, the cross movement unit comprises a wire moving block, a pull plate, a fixed plate, a movable rod, a movable plate, a carrier plate, a pulley and a carrier block, the wire moving block is slidably arranged on the top rail, one end of the pull plate is fixedly connected to the wire moving block, the other end of the pull plate is fixedly inserted into the pull groove, the fixed plate is fixedly arranged at the top end of the wire moving block, a plurality of movable rods are movably inserted into the fixed plate, the movable plate is fixedly arranged at the top end of the movable rod, the carrier plate is fixedly connected to the bottom end of the movable rod, the pulley is rotatably arranged on the carrier plate, the pulley is slidably inserted into the middle convex rail groove and the middle concave rail groove, the carrier block is fixedly arranged at the top end of the movable plate, and the inner supporting unit is fixedly connected to the carrier block.

[0017] Preferably, the inner supporting unit comprises an electric push rod, a fixed disc, a rotating disc, a sliding groove, a curved groove, a guide rod, a limiting rod and an inner supporting ring, the electric push rod is fixedly arranged on the carrier block, the fixed disc is fixedly arranged at the output end of the electric push rod, the rotating disc is rotatably connected to the fixed disc, the sliding groove is annularly and equidistantly arranged on the fixed disc, the curved groove is annularly and equidistantly arranged on the rotating disc, the guide rod is movably inserted into the sliding groove, the limiting rod is fixedly arranged at one end of the guide rod, the inner supporting ring is fixedly arranged at the other end of the guide rod, and the end of the limiting rod away from the guide rod is movably inserted into the curved groove.

[0018] Preferably, the cable is provided with cable connectors at both ends, and a circular hole is arranged on the cable connector, the size of the circular hole is matched with the inner supporting unit.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] 1、The present application completely solves the problem of existing stacked energy storage power station cabinet series parallel connection mode factory fixed, cannot flexible adjustment, through the cooperation of the action of the square rail actuator and the staggered moving mechanism, realize the automatic exchange of the position of the cable between the battery box, can according to the dynamic demand of energy storage scene quickly switch series parallel mode, without relying on the manufacturer's technical personnel on-site operation, both avoid artificial power off disassembly wiring caused by system operation interruption, guarantee the continuity of power supply, also reduce the safety risk of polarity misconnection caused by short circuit, high voltage electric shock, greatly improve the adaptability of energy storage system to industrial and commercial energy storage, emergency power and other multiple scenes, at the same time, without overall replacement of traditional cabinet, reduce resource waste and cost investment, more easy to large-scale popularization and application.

[0021] 2、The square rail actuator of the present application drives the sliding assembly to slide stably along the fixed rod group through motor drive gear and chain transmission, so that the sliding block can drive the staggered moving mechanism to move accurately along the rectangular trajectory, and the positive terminal or negative terminal of any target battery box can be accurately positioned, providing accurate space reference for subsequent cable exchange; the symmetrical design of the fixed rod group and the coordinated action of the sliding assembly in the structure ensure that there is no jamming and deviation during movement, the transmission efficiency is high and the stability is strong, the error and tediousness of manual positioning are avoided, and a precise and stable movement foundation is laid for the whole series parallel mode switching process.

[0022] 3、The staggered moving mechanism of the present application greatly optimizes the efficiency of cable replacement position, provides clear movement guide through the top rail and convex and concave rail groove of the staggered rail box, and cooperates with the efficient power transmission of the transmission unit, so that the cross motion unit can quickly adjust the horizontal position of the inner support unit without manual disassembly and moving of the cable; compared with the traditional manual wiring which needs to spend a lot of time to operate, this mechanism can realize the coherent and automatic action of cable alignment, grabbing, exchange and release, greatly shorten the overall time consumption of cable position replacement, significantly improve the efficiency of series parallel mode switching, and meet the demand of energy storage scene for rapid adjustment of system parameters.

[0023] 4、The inner support unit of the present application realizes the forward and backward expansion of the fixed disc through the electric push rod, can quickly approach or move away from the cable connector, cooperates with the rotation disc to drive the guide rod to slide along the sliding groove, so that the inner support ring can be accurately inserted into the round hole of the cable connector and expanded, forming a firm grip, avoiding the cable from falling off or deviating during moving; the sliding groove, curved groove and guide rod designed in ring shape and at equal intervals ensure that the inner support ring expands evenly and fits closely with the inner wall of the round hole, with strong gripping stability, and the contraction and reset action of the inner support ring is flexible, which can quickly complete the grabbing and releasing cycle of the cable without manual plugging of the cable connector, further improving the automation degree and operation safety of series parallel mode switching. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the overall structure diagram of the present application.

[0025] Figure 2 The cabinet base and the control box split structure schematic diagram of the present application.

[0026] Figure 3 The battery box back structure schematic diagram of the present application.

[0027] Figure 4 The control box internal structure schematic diagram of the present application.

[0028] Figure 5 The cabinet base and the control box split structure schematic diagram of the present application. Figure 4 The structure enlarged view of A in the present application.

[0029] Figure 6 The control box front view structure schematic diagram of the present application.

[0030] Figure 7 The square rail actuating mechanism structure schematic diagram of the present application.

[0031] Figure 8 The square rail actuating mechanism part and the staggered shifting mechanism structure schematic diagram of the present application.

[0032] Figure 9 The staggered shifting mechanism structure schematic diagram of the present application.

[0033] Figure 10 The staggered shifting mechanism side view structure schematic diagram of the present application.

[0034] Figure 11 The staggered rail box cross section, transmission unit and cross motion unit structure schematic diagram of the present application.

[0035] Figure 12 The box body structure schematic diagram of the present application.

[0036] Figure 13 The cross motion unit structure schematic diagram of the present application.

[0037] Figure 14 The internal support unit split structure schematic diagram of the present application.

[0038] Figure 15 The use state schematic diagram of the present application.

[0039] Figure label explanation:

[0040] 1, cabinet base; 2, battery box; 3, high-voltage energy storage converter box; 4, positive terminal; 5, negative terminal; 6, cable; 7, control box; 8, square rail actuating mechanism; 9, staggered shifting mechanism;

[0041] 801, fixed rod group; 802, sliding assembly; 803, gear; 804, motor; 805, chain;

[0042] 8011, fixed slide bar; 8012, fixed carrier plate;

[0043] 8021, slide cylinder; 8022, cross plate; 8023, slide rail; 8024, slide block; 8025, guide shaft;

[0044] 901, staggered track box; 902, transmission unit; 903, cross movement unit; 904, inner support unit;

[0045] 9011, box body; 9012, top rail; 9013, middle convex rail groove; 9014, middle concave rail groove;

[0046] 9021, motor; 9022, rotating rod; 9023, belt; 9024, pull slot;

[0047] 9031, line moving block; 9032, pull plate; 9033, fixed plate; 9034, movable rod; 9035, movable plate; 9036, carrier plate; 9037, pulley; 9038, carrier block;

[0048] 9041, electric push rod; 9042, fixed disc; 9043, rotating disc; 9044, sliding groove; 9045, curved groove; 9046, guide rod; 9047, limiting rod; 9048, inner support ring;

[0049] 601, cable joint; 602, round hole. DETAILED DESCRIPTION

[0050] As shown in Figures 1 to 15 , the application relates to a stacked energy storage power station cabinet, which comprises a cabinet base 1, a battery box 2 arranged in a stacked manner on the cabinet base 1, and a high-voltage energy storage converter box 3 arranged at the top end of the battery box 2.

[0051] The battery box 2 is provided with a positive terminal 4 and a negative terminal 5 at the back, and the positive terminal 4 or the negative terminal 5 of the battery box 2 is connected through a cable 6.

[0052] The cabinet base 1 is provided with a control box 7 at the back, the control box 7 is provided with a square rail execution mechanism 8, and the moving end of the square rail execution mechanism 8 is fixedly connected with a staggered moving mechanism 9.

[0053] The moving end of the square rail execution mechanism 8 drives the staggered moving mechanism 9 to move around a rectangular track at the back of the battery box 2 to determine the control position, and then the cable 6 on the positive terminal 4 and the negative terminal 5 is exchanged through the staggered moving mechanism 9, so as to realize parallel expansion between the battery boxes 2 or series expansion between the battery boxes 2.

[0054] The several battery boxes 2 stacked on the cabinet base 1 in the application are connected in parallel or series through the positive terminal 4 and the negative terminal 5 on the back and the cable 6, and the high-voltage energy storage converter box 3 at the top is responsible for the power convergence and power conversion, thereby ensuring the operation of the energy storage system in the initial state.

[0055] When the series-parallel mode needs to be switched, such as switching from parallel expansion to series expansion, first, power is cut off, and then the rectangular rail actuator 8 in the back of the cabinet base 1 is started in the control box 7, and the moving end is driven by power to move along the rectangular track at the back of the several battery boxes 2 and accurately position the target terminal position of the cable connection that needs to be adjusted, thereby providing an accurate spatial reference for subsequent cable exchange.

[0056] After the positioning of the rectangular rail actuator 8 is completed, the misplacement moving mechanism 9 fixedly connected with the moving end starts to work, and through the transmission and movement components of the misplacement moving mechanism 9, the cable 6 on the target positive terminal 4 and the target negative terminal 5 is grabbed and the position is exchanged, the whole control process does not need manual disassembly and wiring, and the whole process is automatically completed by the mechanism, thereby completely solving the problem of fixed series-parallel mode of the existing cabinet, automatically switching the mode through the mechanism according to the dynamic demand of the energy storage scene, without relying on the manufacturer to operate on site, and greatly improving the adaptation ability of the energy storage system to multiple application scenes.

[0057] In the embodiment of the application, the rectangular rail actuator 8 includes a fixed rod group 801, a sliding assembly 802, a plurality of gears 803, a motor 804 and a chain 805, the fixed rod group 801 is arranged inside the control box 7, the sliding assembly 802 is slidingly arranged at one end of the fixed rod group 801, the plurality of gears 803 are rotatably arranged at the other end of the fixed rod group 801, the motor 804 is arranged at a position close to the back of one of the gears 803, the chain 805 is arranged around the plurality of gears 803, and one end of the sliding assembly 802 is fixedly connected to the chain 805.

[0058] The fixed rod group 801 serves as the mounting base and support frame of the whole mechanism and is fixedly arranged inside the control box 7 to provide a stable assembly carrier for other components; the sliding assembly 802 is slidingly mounted at one end of the fixed rod group 801 and can move flexibly along the extension direction of the fixed rod group 801, and at the same time, the sliding assembly 802 bears the function of connecting the misplacement moving mechanism 9 and is an execution carrier for realizing the trajectory movement of the misplacement moving mechanism 9. The plurality of gears 803 are rotatably mounted at the other end of the fixed rod group 801, the number and arrangement of the gears 803 are determined according to the preset rectangular track size, so as to ensure that the subsequent components can form a regular rectangular movement path through gear transmission; and the chain 805 is arranged around the plurality of gears 803 to form a closed transmission chain structure, and one end of the sliding assembly 802 is fixedly connected to the chain 805.

[0059] When the rectangular track actuator 8 is started, the motor 804 outputs power to drive the gear 803 connected to it to rotate. The gear 803 drives the other gears 803 to rotate synchronously through the chain 805, so that the chain 805 moves cyclically along the trajectory formed by the gears 803. Since the sliding component 802 is fixedly connected to the chain 805, the movement of the chain 805 will drive the sliding component 802 to slide along the fixed rod group 801, thereby causing the misalignment and displacement mechanism 9 connected to the sliding component 802 to move synchronously with the sliding component 802. Finally, the misalignment and displacement mechanism 9 moves around a rectangular trajectory on the back of the battery box 2, so as to accurately position and adjust the position of the cable 6 for subsequent position adjustment.

[0060] In an embodiment of the present invention, the fixed rod assembly 801 includes a fixed slide rod 8011 and a fixed carrier plate 8012. The fixed slide rod 8011 is symmetrically fixed at one end inside the control box 7, and the fixed carrier plate 8012 is symmetrically fixed at the other end inside the control box 7. The gear 803 is symmetrically rotated and connected to the fixed carrier plate 8012. The sliding assembly 802 is slidably disposed on the fixed slide rod 8011.

[0061] In an embodiment of the present invention, the sliding assembly 802 includes a slide cylinder 8021, a horizontal plate 8022, a slide rail 8023, a slider 8024, and a guide shaft 8025. The slide cylinder 8021 is slidably sleeved on the fixed slide rod 8011. The horizontal plate 8022 is fixedly connected between the two slide cylinders 8021. The slide rail 8023 is opened on the horizontal plate 8022. The slider 8024 is slidably disposed on the slide rail 8023. One end of the guide shaft 8025 is fixedly connected to the slider 8024, and the other end of the guide shaft 8025 is fixedly connected to the chain 805. The misalignment and displacement mechanism 9 is fixedly connected to the end of the slider 8024 away from the guide shaft 8025.

[0062] In this invention, the slide cylinder 8021 is slidably sleeved on the fixed slide rod 8011, and its inner diameter is precisely matched with the outer diameter of the fixed slide rod 8011 to ensure that the slide cylinder 8021 can slide along the fixed slide rod 8011 without jamming; the horizontal plate 8022 is fixedly connected between the two slide cylinders 8021, and the two independent slide cylinders 8021 are connected into a whole by the horizontal plate 8022 to ensure the synchronicity of the overall movement of the sliding assembly 802.

[0063] The slide 8023 is arranged on the horizontal plate 8022 to provide a path for the horizontal sliding of the sliding block 8024; the sliding block 8024 is slidingly arranged on the slide 8023 and can be flexibly adjusted in position along the slide 8023; the guide shaft 8025 is fixedly connected at one end to the sliding block 8024 and at the other end to the chain 805; when the chain 805 is driven to circulate by the gear 803, the sliding block 8024 is driven to move synchronously by the guide shaft 8025; the movement of the chain 805 can be converted into the horizontal sliding of the sliding block 8024 along the slide 8023 through the guide shaft 8025, and the chain 805 drives the sliding cylinder 8021 to slide along the fixed slide rod 8011 in the longitudinal direction, and the two cooperate to make the sliding block 8024 move in a rectangular trajectory. The dislocation shifting mechanism 9 is fixedly connected to the end of the sliding block 8024 away from the guide shaft 8025, and the rectangular trajectory movement of the sliding block 8024 directly drives the dislocation shifting mechanism 9 to move synchronously, thereby ensuring the accurate arrival of the dislocation shifting mechanism 9 at the target terminal position on the back of the battery box 2.

[0064] In the embodiment of the present application, the dislocation shifting mechanism 9 includes a dislocation rail box 901, a transmission unit 902, a cross movement unit 903 and an inner support unit 904, the dislocation rail box 901 is fixedly connected to the moving end of the rectangular rail execution mechanism 8, the transmission unit 902 is fixedly arranged in the dislocation rail box 901, the cross movement unit 903 is slidingly arranged on the dislocation rail box 901, and the inner support unit 904 is arranged on the cross movement unit 903.

[0065] In the present application, when the rectangular rail execution mechanism 8 drives the moving end to move along a rectangular trajectory, the dislocation rail box 901 moves synchronously with the moving end, thereby driving the entire dislocation shifting mechanism 9 to accurately arrive at the target terminal position on the back of the battery box 2. The transmission unit 902 is fixedly arranged in the dislocation rail box 901 and plays a core role in providing power for the entire dislocation shifting mechanism 9. The cross movement unit 903 is slidingly arranged on the dislocation rail box 901 and its movement trajectory is limited and guided by the structure of the dislocation rail box 901. Under the driving of the power transmitted by the transmission unit 902, the cross movement unit 903 can slide along the preset path of the dislocation rail box 901, and the synchronous movement of the inner support unit 904 connected thereto is driven by the position adjustment of the cross movement unit 903, so that the inner support unit 904 can accurately align the cable 6 on the positive terminal 4 or the negative terminal 5 on the back of the battery box 2, thereby laying a positional foundation for the inner support unit 904 to grasp the cable 6.

[0066] The inner supporting unit 904 is arranged on the cross movement unit 903, and is an execution assembly directly contacting the cable 6 and completing position adjustment. When the cross movement unit 903 drives the inner supporting unit 904 to align the cable 6, the inner supporting unit 904 can firmly grasp the joint part of the cable 6 through inner supporting expansion, and then, under the further position adjustment of the cross movement unit 903, the cable 6 is transferred from the original connected terminal, positive electrode or negative electrode, to the target terminal, negative electrode or positive electrode, so as to finally realize the position adjustment of the cable 6 between the battery boxes 2, and provide direct execution guarantee for series-parallel mode switching, parallel expansion or series expansion.

[0067] As another embodiment of the present application, the misaligned track box 901 comprises a box body 9011, a top rail 9012, a middle convex rail groove 9013 and a middle concave rail groove 9014. The box body 9011 is fixedly connected to the moving end of the track execution mechanism 8. The top rail 9012 is symmetrically and fixedly arranged at the top end of the box body 9011. The middle convex rail groove 9013 is arranged at one end of the box body 9011. The middle concave rail groove 9014 is arranged at the other end of the box body 9011. The transmission unit 902 is arranged in the box body 9011. The cross movement unit 903 is slidingly arranged on the top rail 9012. The bottom end of the cross movement unit 903 is slidingly arranged on the middle convex rail groove 9013 and the middle concave rail groove 9014.

[0068] As another embodiment of the present application, the transmission unit 902 comprises a motor 9021, a rotating rod 9022, a belt 9023 and a pulling groove 9024. The motor 9021 is fixedly arranged at one end inside the box body 9011. The rotating rod 9022 is rotatably arranged at the other end inside the box body 9011. One end of the belt 9023 is connected to the output end of the motor 9021. The other end of the belt 9023 is connected to the rotating rod 9022. The pulling groove 9024 is arranged on the belt 9023.

[0069] As another embodiment of the present application, the cross movement unit 903 comprises a wire moving block 9031, a pulling plate 9032, a fixed plate 9033, a movable rod 9034, a movable plate 9035, a carrier plate 9036, a pulley 9037 and a carrier block 9038. The wire moving block 9031 is slidingly arranged on the top rail 9012. One end of the pulling plate 9032 is fixedly connected to the wire moving block 9031. The other end of the pulling plate 9032 is fixedly inserted into the pulling groove 9024. The fixed plate 9033 is fixedly arranged at the top end of the wire moving block 9031. The movable rods 9034 are movably inserted into the fixed plate 9033. The movable plate 9035 is fixedly arranged at the top end of the movable rods 9034. The carrier plate 9036 is fixedly connected to the bottom end of the movable rods 9034. The pulley 9037 is rotatably arranged on the carrier plate 9036. The pulley 9037 is slidingly inserted into the middle convex rail groove 9013 and the middle concave rail groove 9014. The carrier block 9038 is fixedly arranged at the top end of the movable plate 9035. The inner supporting unit 904 is fixedly connected to the carrier block 9038.

[0070] The box body 9011 is fixed on the sliding block 8024, first, the motor 9021 drives the belt 9023 to rotate, the belt 9023 drives the pull groove 9024 and the pull plate 9032 to rotate, the pull plate 9032 drives the fixedly connected line moving block 9031 to slide along the top rail 9012, the line moving block 9031 drives the fixed plate 9033 to move, the fixed plate 9033 drives the movable rod 9034, the movable plate 9035 and the carrier plate 9036 to slide along the direction of the top rail 9012 through the pulley 9037, because the pulley 9037 is movably inserted into the middle convex rail groove 9013 and the middle concave rail groove 9014, when the pulley 9037 slides to the convex part of the middle convex rail groove 9013 or the concave part of the middle concave rail groove 9014, the shape of the rail groove causes the pulley 9037 to move up or down, the pulley 9037 drives the carrier plate 9036, the movable rod 9034 and the movable plate 9035 to move vertically, the carrier block 9038 is fixed at the top end of the movable plate 9035 and is used for fixedly connecting the inner support unit 904, and finally the positions of the two groups of inner support units 904 are exchanged.

[0071] As another embodiment of the present application, the inner support unit 904 includes an electric push rod 9041, a fixed disc 9042, a rotating disc 9043, a sliding groove 9044, a curved groove 9045, a guide rod 9046, a limiting rod 9047 and an inner support ring 9048, the electric push rod 9041 is fixedly arranged on the carrier block 9038, the fixed disc 9042 is fixedly arranged on the output end of the electric push rod 9041, the rotating disc 9043 is rotatably connected to the fixed disc 9042, the sliding groove 9044 is annularly and equidistantly arranged on the fixed disc 9042, the curved groove 9045 is annularly and equidistantly arranged on the rotating disc 9043, the guide rod 9046 is movably inserted into the sliding groove 9044, the limiting rod 9047 is fixedly arranged at one end of the guide rod 9046, and the inner support ring 9048 is fixedly arranged at the other end of the guide rod 9046, and the limiting rod 9047 is movably inserted into the curved groove 9045 away from the one end of the guide rod 9046.

[0072] In the present application, the output end of the electric push rod 9041 is fixedly connected with the fixed disc 9042, the fixed disc 9042 can be pushed to approach or move away from the cable joint 601 through the telescopic action, the built-in micro motor drives the rotating disc 9043 to rotate, the curved groove 9045 drives the guide rod 9046 to slide along the sliding groove 9044 in the radial direction through the limiting rod 9047, and then the inner support ring 9048 is controlled to expand or contract, so that the cable joint 601 is gripped and released.

[0073] As another embodiment of the present application, the cable 6 is provided with the cable joint 601 at both ends, and the cable joint 601 is provided with the round hole 602, and the size of the round hole 602 is matched with the inner support unit 904.

[0074] When the inner support unit 904 is aligned with the cable joint 601 in the present application, the inner support ring 9048 can be inserted into the round hole 602, and through the expansion action of the subsequent inner support ring 9048, it is tightly attached to the inner wall of the round hole 602, forming a firm grabbing structure.

[0075] It should be noted that although some of the current stacked energy storage power station cabinets realize series-parallel mode switching through built-in circuits and control modules, there are still a large number of stacked traditional power station cabinets on the market. This type of cabinet does not carry such an intelligent switching system, and series-parallel adjustment still relies on manual on-site operation. If the traditional cabinet is recycled and reproduced as a whole to achieve flexible switching function, not only the cost of disassembling and material processing of old cabinets needs to be borne, but also the cost of new component research and development, production and assembly needs to be invested. The overall cost is high, and resource waste is easy to occur during the recycling process, which is difficult to implement on a large scale in practical applications.

[0076] Working principle: the embodiment provides a stacked energy storage power station cabinet, when the series-parallel mode needs to be switched according to the scene requirement, the system is powered off first, then the rectangular rail actuator 8 in the control box 7 at the back of the cabinet base 1 is started, the motor 804 drives the gear 803 on the fixed rod group 801 to rotate, the gear 803 drives the wound chain 805 to move in a cycle, the chain 805 pulls the sliding assembly 802 along the fixed slide rod 8011 of the fixed rod group 801 through the guide shaft 8025, the sliding block 8024 of the sliding assembly 802 drives the staggered moving mechanism 9 to move around the rectangular trajectory, realizing the position positioning of the staggered moving mechanism 9 to the target terminal;

[0077] In the staggered moving mechanism 9, the motor 9021 of the transmission unit 902 drives the rotating rod 9022 to rotate, the rotating rod 9022 drives the belt 9023 to move in a cycle, the belt 9023 pulls the pull plate 9032 through the pull slot 9024, the pull plate 9032 drives the linear moving block 9031 of the cross moving unit 903 to slide along the top rail 9012 of the staggered rail box 901, the linear moving block 9031 drives the carrier plate 9036 and the pulley 9037 to slide along the middle convex rail groove 9013 and the middle concave rail groove 9014 of the staggered rail box 901, the pulley 9037 drives the movable rod 9034 to move up and down through the carrier plate 9036, the movable rod 9034 drives the carrier block 9038 and the inner support unit 904 to fine tune the height through the movable plate 9035, so that the inner support unit 904 is aligned with the cable joint 601 of the cable 6;

[0078] The electric push rod 9041 of the inner support unit 904 pushes the fixed disc 9042 to be close to the cable joint 601, the rotating disc 9043 on the fixed disc 9042 rotates, the rotating disc 9043 drives the limiting rod 9047 to move through the curved groove 9045, the limiting rod 9047 drives the guide rod 9046 to slide along the sliding groove 9044 of the fixed disc 9042, and the guide rod 9046 drives the inner support ring 9048 to be inserted into the round hole 602 of the cable joint 601 and expanded, so that the inner support ring 9048 realizes the grabbing of the cable joint 601; the cross motion unit 903 continues to drive the inner support unit 904 and the grabbed cable 6 to move, the cable 6 is transferred from the originally connected positive electrode terminal 4 or negative electrode terminal 5 to the target terminal, the position of the cable 6 is exchanged, and finally the mode switching of parallel expansion or series expansion between the battery boxes 2 is realized.

[0079] The embodiments of the present application are disclosed, but are not limited to the embodiments, and the ordinary skilled in the art can easily understand the spirit of the present application according to the above embodiments and make different inferences and changes, as long as they do not deviate from the spirit of the present application, and are within the protection scope of the present application.

Claims

1. A stacked energy storage power plant cabinet, characterized by, Including cabinet base (1), the cabinet base (1) is provided with battery box (2) in a stack, the top end of battery box (2) is provided with high voltage energy storage converter box (3); The back of the battery box (2) is provided with a positive terminal (4) and a negative terminal (5), and the positive terminal (4) or the negative terminal (5) is connected by a cable (6) between a plurality of battery boxes (2); The back of the cabinet base (1) is provided with a control box (7), the control box (7) is provided with a square rail actuator (8), and the moving end of the square rail actuator (8) is fixedly connected with a staggered shifting mechanism (9); The moving end of the square rail actuator (8) drives the staggered shifting mechanism (9) to move around the rectangular track on the back of the plurality of battery boxes (2) to determine the control position, and then the cable (6) on the positive terminal (4) and the negative terminal (5) is exchanged by the staggered shifting mechanism (9), so as to realize the parallel expansion between a plurality of battery boxes (2) or the series expansion between a plurality of battery boxes (2); The square rail actuator (8) includes a fixed rod group (801), a sliding assembly (802), a gear (803), a motor (804) and a chain (805), the fixed rod group (801) is arranged in the control box (7), the sliding assembly (802) is slidably arranged at one end of the fixed rod group (801), a plurality of gears (803) are rotatably arranged at the other end of the fixed rod group (801), the motor (804) is arranged at the position close to the back of one of the gears (803) of the fixed rod group (801), and the chain (805) is wound around the plurality of gears (803), and one end of the sliding assembly (802) is fixedly connected to the chain (805); The staggered shifting mechanism (9) includes a staggered rail box (901), a transmission unit (902), a cross motion unit (903) and an inner support unit (904), the staggered rail box (901) is fixedly connected to the moving end of the square rail actuator (8), the transmission unit (902) is fixedly arranged in the staggered rail box (901), the cross motion unit (903) is slidably arranged on the staggered rail box (901), and the inner support unit (904) is arranged on the cross motion unit (903).

2. A stacked energy storage power plant cabinet according to claim 1, characterized in that, The fixed rod group (801) includes a fixed sliding rod (8011) and a fixed carrier plate (8012), the fixed sliding rod (8011) is symmetrically fixedly arranged at one end in the control box (7), the fixed carrier plate (8012) is symmetrically fixedly arranged at the other end in the control box (7), the gears (803) are symmetrically rotatably connected to the fixed carrier plate (8012), and the sliding assembly (802) is slidably arranged on the fixed sliding rod (8011).

3. A stacked energy storage power plant cabinet according to claim 2, wherein, The sliding assembly (802) comprises a sliding cylinder (8021), a cross plate (8022), a slide (8023), a sliding block (8024) and a guide shaft (8025), the sliding cylinder (8021) is sleeved on the fixed slide rod (8011), the cross plate (8022) is fixedly connected between two sliding cylinders (8021), the slide (8023) is arranged on the cross plate (8022), the sliding block (8024) is arranged on the slide (8023), one end of the guide shaft (8025) is fixedly connected to the sliding block (8024), and the other end of the guide shaft (8025) is fixedly connected to the chain (805), and the dislocation moving mechanism (9) is fixedly connected to the end of the sliding block (8024) away from the guide shaft (8025).

4. A stacked energy storage power plant cabinet according to claim 1, wherein, The dislocation rail box (901) comprises a box body (9011), a top rail (9012), a middle convex rail groove (9013) and a middle concave rail groove (9014), the box body (9011) is fixedly connected to the moving end of the rail executing mechanism (8), the top rail (9012) is symmetrically arranged at the top end of the box body (9011), the middle convex rail groove (9013) is arranged at one end of the box body (9011), the middle concave rail groove (9014) is arranged at the other end of the box body (9011), the transmission unit (902) is arranged in the box body (9011), the cross movement unit (903) is slidably arranged on the top rail (9012), and the bottom end of the cross movement unit (903) is slidably arranged on the middle convex rail groove (9013) and the middle concave rail groove (9014).

5. A stacked energy storage power plant cabinet according to claim 4, wherein, The transmission unit (902) comprises a motor (9021), a rotating rod (9022), a belt (9023) and a pulling groove (9024), the motor (9021) is fixedly arranged at one end in the box body (9011), the rotating rod (9022) is rotatably arranged at the other end in the box body (9011), one end of the belt (9023) is connected to the output end of the motor (9021), the other end of the belt (9023) is connected to the rotating rod (9022), and the pulling groove (9024) is arranged on the belt (9023).

6. A stacked energy storage power plant cabinet according to claim 5, wherein, The cross movement unit (903) comprises a line moving block (9031), a pull plate (9032), a fixed plate (9033), a movable rod (9034), a movable plate (9035), a carrier plate (9036), a pulley (9037) and a carrier block (9038), the line moving block (9031) is slidingly arranged on the top rail (9012), one end of the pull plate (9032) is fixedly connected to the line moving block (9031), the other end of the pull plate (9032) is fixedly inserted into the pull groove (9024), the fixed plate (9033) is fixedly arranged at the top end of the line moving block (9031), a plurality of movable rods (9034) are movably inserted into the fixed plate (9033), the movable plate (9035) is fixedly arranged at the top end of the movable rod (9034), the carrier plate (9036) is fixedly connected to the bottom end of the movable rod (9034), the pulley (9037) is rotatably arranged on the carrier plate (9036), the pulley (9037) is slidingly inserted into the middle convex rail groove (9013) and the middle concave rail groove (9014), and the carrier block (9038) is fixedly arranged at the top end of the movable plate (9035).

7. A stacked energy storage power plant cabinet according to claim 6, wherein, The inner supporting unit (904) comprises an electric push rod (9041), a fixed disc (9042), a rotating disc (9043), a sliding groove (9044), a curved groove (9045), a guide rod (9046), a limiting rod (9047) and an inner supporting ring (9048), the electric push rod (9041) is fixedly arranged on the carrier block (9038), the fixed disc (9042) is fixedly arranged at the output end of the electric push rod (9041), the rotating disc (9043) is rotatably connected to the fixed disc (9042), the sliding groove (9044) is annularly and equidistantly arranged on the fixed disc (9042), the curved groove (9045) is annularly and equidistantly arranged on the rotating disc (9043), the guide rod (9046) is movably inserted into the sliding groove (9044), the limiting rod (9047) is fixedly arranged at one end of the guide rod (9046), and the inner supporting ring (9048) is fixedly arranged at the other end of the guide rod (9046).

8. A stacked energy storage power plant cabinet according to claim 1, wherein, The cable (6) is provided with a cable connector (601) at both ends, a circular hole (602) is formed in the cable connector (601), and the size of the circular hole (602) is matched with the inner supporting unit (904).

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