Energy storage confluence cabinet for photovoltaic power station

Abstract

The invention relates to the technical field of energy storage confluence cabinets, in particular to an energy storage confluence cabinet for a photovoltaic power station. The invention provides an energy storage confluence cabinet for a photovoltaic power station, which comprises a confluence cabinet, the waist part of the confluence cabinet is provided with a lifting frame controlled to ascend and descend, the lifting frame is U-shaped, the two end parts of the lifting frame surround the two sides of the confluence cabinet, the lifting frame is provided with at least two groups of lock catch assemblies controlled to be opened and closed, and the lifting frame is regulated to descend. The lifting hook is driven to move to the lower position of the confluence cabinet, an operator can conveniently lock and connect the lifting hook and the lock catch assembly on the ground or at the lower position, then the confluence cabinet is integrally lifted to an installation station through lifting equipment, and after positioning is conducted, the lock catch assembly is controlled to be opened, so that the lock catch assembly is automatically released from the lifting hook. Therefore, stable installation of the confluence cabinet is completed, manual intervention is reduced, the safety, convenience and automation level of hoisting operation are improved, and efficient and safe engineering installation requirements are met.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage combiner cabinets, and in particular to an energy storage combiner cabinet for a photovoltaic power station. Background Art

[0002] Energy storage combiners are key devices in photovoltaic power plants that centrally manage the flow of power between the energy storage system and the grid or loads. They combine the DC or AC outputs of multiple energy storage battery clusters or photovoltaic inverters and deliver them uniformly to the grid or load, reducing wiring complexity. They feature built-in lightning protection modules and circuit breakers, providing overcurrent, short-circuit, and reverse current protection to ensure safe system operation. They store energy during low-price periods and release it during peak periods, reducing electricity costs while mitigating the impact of photovoltaic power generation fluctuations on the grid and improving power quality.

[0003] Existing energy storage combiner cabinets are typically vertical structures with a relatively high overall height. During installation, they must be hoisted onto a concrete base or mounting platform using lifting equipment (such as a crane). Currently, a lifting ring is commonly installed on the top of the combiner cabinet as a lifting point. However, in practice, this requires manual climbing to the top of the combiner cabinet and manually hooking the lifting hook into the ring.

[0004] During this manual connection process, there is a risk of falling when working at height, especially in complex outdoor environments or under the influence of high-altitude winds, which makes the operation difficult and dangerous. In addition, the lifting ring is located at the top of the equipment, and manual intervention is required to lock and release the hook before and after lifting, which increases the operation steps and reduces the overall construction efficiency.

[0005] Based on the above situation, there is an urgent need for an energy storage combiner cabinet for photovoltaic power stations, which can achieve locking and tripping with the lifting hook through a hook mechanism, reduce manual intervention, improve the safety, convenience and automation level of the lifting operation, and meet the needs of efficient and safe engineering installation. Summary of the Invention

[0006] In response to the problems raised in the background technology, the present invention provides an energy storage combiner cabinet for a photovoltaic power station to solve the problems. The present invention will be further explained below.

[0007] An energy storage combiner cabinet for a photovoltaic power station includes a combiner cabinet, wherein a lifting frame with controlled lifting is provided at the waist of the combiner cabinet. The lifting frame is U-shaped, and its two ends are surrounded on both sides of the combiner cabinet. The lifting frame is provided with at least two sets of lock components with controlled opening and closing.

[0008] Preferably, the locking assembly includes at least two groups of locking rings 1 and 2 that are slidably connected to the lifting frame. The ends of the locking rings 1 and 2 are spliced ​​with each other using a mortise and tenon structure. Both side walls of the junction cabinet are provided with broken line guide grooves corresponding to the locking rings 1 and 2 one by one, and the ends of the locking rings 1 and 2 are slidably connected in the guide grooves.

[0009] Preferably, a guide piece is fixedly connected to the front side wall of the locking ring 1, a gap exists between the guide piece and the adjacent locking ring 1, and a moving piece is slidably connected to the guide piece.

[0010] Preferably, one side of the locking ring is connected to a rotating part, the end of which is H-shaped, a torsion spring is compressed between the rotating part and the locking ring, and a short column is fixed to one side of the movable part, which is embedded in and clamped in the H-shaped end gap of the rotating part. The junction cabinet is provided with extrusion parts corresponding to the rotating parts one by one, the extrusion parts pass through the lifting frame and extend upward, and the extended end produces an extrusion limit on the rotating part.

[0011] Preferably, the rear side wall of the junction cabinet is provided with two symmetrically distributed support platforms, which are distributed up and down, and a rotating shaft is connected to the bottom support platform, and the end of the rotating shaft is keyed to a bevel gear 1, and the bevel gear 1 is keyed to a screw rod, and the top of the screw rod is connected to the support platform at the top of the junction cabinet, and a support ear is also fixed to the bottom support platform, and a handle 1 is connected to the support ear, and the handle 1 passes through one end of the support ear and is keyed to a bevel gear 2, and the bevel gear 2 is meshed with the bevel gear 1 for transmission, and the lifting frame is threadedly connected to the screw rod, and guide rods are fixed to the left and right side walls of the junction cabinet, and the lifting frame is slidably connected to the adjacent guide rods.

[0012] Preferably, a positioning piece is embedded and slidably connected to the lifting frame, and an end of the positioning piece passes through the lifting frame. A positioning groove matching the end of the positioning piece is formed on the rear side wall of the combiner cabinet.

[0013] Preferably, a fixing rod is fixed to the rear side wall of the junction cabinet, a transmission rod is slidably connected to the fixing rod, the transmission rod is slidably connected to the positioning piece, the end of the fixing rod is threadedly connected with a screw, the end of the screw is threadedly connected to the rear side wall of the junction cabinet, and the screw passes through the front end of the fixing rod and is keyed to a handle 2.

[0014] Preferably, the bottom of the combiner cabinet is provided with two groups of symmetrically distributed buffer grooves, the bottom of the transmission rod is fixedly connected with an extrusion frame with a broken line design, the end of the extrusion frame is provided with a limiting groove, and a sliding frame is slidably connected through the limiting groove.

[0015] Preferably, both ends of the sliding frame are fixed with slides, the slides correspond to the buffer grooves one by one, and buffer members are slidably connected to the slides, and a buffer spring is provided between the buffer member and the slides.

[0016] Preferably, the bottom of the buffer is provided with balls distributed in an array.

[0017] Beneficial effect: Compared with the existing technology, this device lowers the lifting frame to a lower position of the junction cabinet by regulating the lifting frame, so that the lock ring 1 and the lock ring 2 are at a height that is convenient for operation. The closed lock ring formed by the lock ring 1 and the lock ring 2, and the locking structure formed between the lock ring 1 and the lifting hook maintain a stable connection. The lifting hook is squeezed and limited by the upward movement of the moving part, so that the lifting hook maintains a rigid connection with the lock ring 1 and the lock ring 2, avoiding unexpected disconnection between the lifting hook and the lock ring due to vibration, impact or force changes during the lifting process, and effectively avoiding the high-risk operation method of manually climbing to the top of the junction cabinet to perform the hook operation during the traditional lifting process, significantly reducing the manual intervention link, improving the safety and convenience of the lifting operation, and at the same time simplifying the construction process, improving the overall installation efficiency and engineering automation level.

[0018] By regulating the lifting frame to move upward, the lock ring 1, lock ring 2 and guide groove cooperate, and then the rotating part, guide part and movable part move in conjunction, so that effective avoidance space is generated between the lock ring 1 and lock ring 2, and between the movable part and the lifting hook, so that the lifting hook can be smoothly moved out of the gap, completing the interference-free unhooking operation.

[0019] Through the cooperation of the second handle, the screw, the transmission rod, and the extrusion frame, the sliding plate and the buffer part are linked to move downward until the buffer part contacts the installation ground. Through the cooperation of the buffer part and the buffer spring, the impact force and extrusion force generated when the combiner cabinet falls to the ground are effectively absorbed, and the influence of the rigid collision between the equipment and the ground is reduced, thereby significantly reducing the vibration and shaking of the combiner cabinet during the process of lowering into position, and achieving a smooth and safe landing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 : Schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 : Schematic diagram of the local structure of the present invention;

[0022] Figure 3 : A schematic structural diagram of the lock assembly of the present invention;

[0023] Figure 4 : A schematic structural diagram of the components of the present invention that implement the locking connection between the first and second locking rings and the lifting hook;

[0024] Figure 5 : Schematic diagram of the structure of the lock ring 1 and the lock ring 2 of the present invention;

[0025] Figure 6 : A schematic structural diagram of the components related to achieving a smooth landing of a combiner cabinet according to the present invention;

[0026] In the figure: 1-confluence cabinet, 10-support platform, 11-screw, 111-rotating shaft, 112-bevel gear 1, 113-support ear, 114-handle 1, 12-bevel gear 2, 13-lifting frame, 14-guide rod, 15-locking ring 1, 16-locking ring 2, 17-guide groove, 2-extrusion member, 21-rotating member, 22-moving member, 23-guide member, 24-transmission rod, 25-screw, 251-handle 2, 26-fixed rod, 27-positioning member, 271-positioning groove, 28-torsion spring, 29-short column, 3-extrusion frame, 31-sliding frame, 32-buffer, 33-ball, 34-buffer spring, 35-buffer groove, 36-limiting groove, 37-slide plate. DETAILED DESCRIPTION

[0027] Next, combine Figures 1-6 A specific embodiment of the present invention is described in detail.

[0028] refer to Figure 1 and Figure 3 A storage energy storage junction box for a photovoltaic power station includes a junction box 1. A controlled lifting frame 13 is provided at the waist of the junction box 1. The lifting frame 13 is U-shaped, with its ends surrounding the junction box 1. The lifting frame 13 is provided with at least two sets of controlled opening and closing lock assemblies. By controlling the lifting frame 13 to descend, the lock assemblies thereon are moved to a lower position of the junction box 1, making it convenient for operators to lock and connect the lifting hooks with the lock assemblies on the ground or at a low location. The junction box 1 is then hoisted to the installation station using lifting equipment. After positioning is completed, the lock assemblies are automatically disengaged from the lifting hooks by controlling the lock assemblies, thereby completing the stable installation of the junction box 1. This method effectively avoids the high-risk operation required by traditional hoisting processes, which requires manual climbing to the top of the junction box to operate the hooks. This significantly reduces manual intervention, improves the safety and convenience of the hoisting operation, and simplifies the construction process, improving overall installation efficiency and the level of engineering automation.

[0029] refer to Figure 5 As described in the background technology, the traditional energy storage combiner cabinet 1 is usually provided with a closed ring lifting ring on the top as a lifting force point. This structure has problems such as inconvenient operation and low safety in actual application. In particular, during the lifting process, manual climbing is required to complete the locking and releasing operations between the lifting hook and the lifting ring. Not only is the labor intensity high, but there is also a high operational risk. In order to overcome the above defects, this device abandons the traditional top closed ring structure and introduces a controlled opening and closing lock assembly as a new lifting connection mechanism.

[0030] Specifically, the locking assembly includes at least two groups of locking rings 15 and 16 that are slidably connected to the lifting frame 13. The ends of the locking rings 15 and 16 are spliced ​​with each other using a mortise and tenon structure, and are combined in a closed state to form a complete and closed annular structure, thereby achieving stable connection and force transmission of the junction box 1 during the lifting process.

[0031] After the junction box 1 is hoisted to the installation site, the lock ring 15 and the lock ring 2 16 are automatically unlocked through the following scheme. Specifically, a broken line guide groove 17 corresponding to the lock ring 15 and the lock ring 2 16 is provided on both side walls of the junction box 1. The ends of the lock ring 15 and the lock ring 2 16 are slidably connected in the guide groove 17 and slide in a controlled manner along its trajectory.

[0032] Before hoisting, adjust the lifting frame 13 to lower the combiner cabinet 1 to a lower position, so that the first and second locking rings 15 and 16 are at a convenient height. At this point, the ends of the first and second locking rings 15 and 16 are connected by a mortise and tenon joint structure to form a complete and closed ring structure. The operator quickly locks the lifting hook with the closed locking ring from the ground or a low position, completing the hoisting preparation.

[0033] Subsequently, the lifting frame 13 is adjusted to a suitable height for hoisting the combiner cabinet 1 and positioned there. During this process, locking ring 15 and locking ring 2 16, along with the locking structure formed by the lifting hook, move upward synchronously, maintaining a stable connection. Driven by the lifting frame 13, the combiner cabinet 1 is smoothly hoisted to the target installation location. This entire process eliminates the need for manual labor, significantly improving the safety and efficiency of the hoisting operation.

[0034] After the junction cabinet 1 is hoisted and positioned, the lifting frame 13 is adjusted to move upward again, and the lock ring 15 and the lock ring 2 16 slide upward synchronously under the guidance of the guide groove 17. Based on the broken line design of the guide groove 17, the movement of the lock ring 15 and the lock ring 2 16 is guided, that is, the lock ring 15 and the lock ring 2 16 move in the direction away from each other, causing the mortise and tenon connection between the lock ring 15 and the lock ring 2 16 to gradually separate until it is completely disengaged, forming an open loop state, thereby realizing automatic tripping with the lifting hook. This tripping process does not require manual intervention, effectively releases the locking constraint on the lifting hook, and allows the lifting device to be smoothly disengaged and shifted, significantly improving the safety, automation level and construction efficiency of the lifting operation.

[0035] refer to Figure 3In order to ensure that the closed lock ring formed by lock ring 15 and lock ring 2 16 and the locking structure formed between the closed lock ring and the lifting hook maintain a stable connection during the lifting process, and to prevent unexpected disengagement between the lifting hook and the lock ring due to vibration, impact or force changes during the lifting process, the device is designed as follows: a guide part 23 is fixedly connected to the front side wall of the lock ring 15, and there is a gap between the guide part 23 and the adjacent lock ring 15. A moving part 22 is slidably connected to the guide part 23. By regulating the movement of the moving part 22, the switching between the limited locking state and the unlocked disengagement state between the lifting hook and the closed ring structure formed by lock ring 15 and lock ring 2 16 is achieved.

[0036] Reference 3 and Figure 4 In order to realize the automatic control of the moving part 22, a rotating part 21 is connected to one side of the locking ring 15, and its end is H-shaped. A torsion spring 28 is compressed between the rotating part 21 and the locking ring 15 to provide reset drive. A short column 29 is fixed to one side of the moving part 22, and the short column 29 is embedded in and clamped in the H-shaped end gap of the rotating part 21 to form a linkage connection.

[0037] refer to Figure 3 The junction box 1 is provided with an extrusion piece 2 corresponding to the rotating piece 21 one by one. The extrusion piece 2 passes through the lifting frame 13 and extends upward. The extended end produces an extrusion limit on the rotating piece 21, that is, in the initial state of lifting, the extrusion piece 2 continues to squeeze the rotating piece 21, so that the rotating piece 21 maintains an inclined state, and the torsion spring 28 is in an energy storage state. The short column 29 drives and stabilizes the moving piece 22 at the bottom of the guide piece 23, that is, the lower splicing area of ​​the lock ring 15 and the lock ring 2 16 due to the limiting effect of the H-shaped end portion of the rotating piece 21. In this state, the moving piece 22 does not interfere with or limit the lifting hook, ensuring the smooth progress of the lifting operation.

[0038] During the lifting process, the lifting hook is locked and connected with the locking ring 15 and the locking ring 2 16. As the lifting frame 13 moves upward in a controlled manner, the extrusion member 2 and the rotating member 21 are gradually separated from the extrusion. Under the action of the torsion spring 28, the rotating member 21 rotates and maintains a parallel state. As the rotating member 21 rotates, the short column 29 and the moving member 22 are driven to move upward, that is, the moving member 22 moves upward to squeeze and limit the lifting hook, so that the lifting hook maintains a rigid connection with the upper splicing area of ​​the locking ring 15 and the locking ring 2 16, avoiding unexpected disengagement between the lifting hook and the locking ring due to vibration, impact or force changes during lifting.

[0039] After the junction box 1 is hoisted and positioned, the lifting frame 13 is adjusted to move upward again, and the lock ring 15 and the lock ring 2 16 are separated from each other under the action of the guide groove 17, and then the rotating part 21, the guide part 23 and the movable part 22 are linked to move, thereby generating a gap between the lock ring 15 and the lock ring 2 16, and a tripping gap between the movable part 22 and the lifting hook. Finally, effective avoidance space is generated between the lock ring 15 and the lock ring 2 16, and between the movable part 22 and the lifting hook, so that the lifting hook can be smoothly moved out of the gap and the interference-free unhooking operation is completed.

[0040] refer to Figure 2 In order to regulate the lifting and lowering of the lifting frame 13, the following linkage design is adopted to achieve the purpose: the rear side wall of the combiner cabinet 1 is provided with two symmetrically distributed support platforms 10, which are distributed up and down. A rotating shaft 111 is connected to the bottom support platform 10, and a key is connected to a bevel gear 112 at the end of the rotating shaft 111. A screw rod 11 is connected to the bevel gear 112 on the key. The top of the screw rod 11 is connected to the support platform 10 at the top of the combiner cabinet 1, and the bottom support platform 10 is connected to the bottom support platform 10. A support ear 113 is also fixed on it, and a handle 114 is connected to the support ear 113. The handle 114 passes through the support ear 113 and is keyed to a bevel gear 2 12 at one end. The bevel gear 2 12 is engaged with the bevel gear 112 for transmission. The lifting frame 13 is threadedly connected to the screw rod 11. Guide rods 14 are fixed to the left and right side walls of the junction cabinet 1. The lifting frame 13 is slidably connected to the adjacent guide rods 14 to guide the movement of the lifting frame 13.

[0041] refer to Figure 2 A positioning piece 27 is embedded and slidably connected to the lifting frame 13. The end of the positioning piece 27 passes through the lifting frame 13. A positioning groove 271 matching the end of the positioning piece 27 is opened on the rear side wall of the junction cabinet 1. By adjusting the movement of the positioning piece 27, its end is locked with the positioning groove 271 to achieve locking between the lifting frame 13 and the junction cabinet 1.

[0042] refer to Figure 2 A fixing rod 26 is fixed to the rear side wall of the combiner cabinet 1, and a transmission rod 24 is slidably connected to the fixing rod 26. The transmission rod 24 is slidably connected with the positioning piece 27, and the transmission rod 24 cooperates with the positioning piece 27. The end of the fixing rod 26 is threadedly connected with a screw 25, and the end of the screw 25 is threadedly connected to the rear side wall of the combiner cabinet 1. The front end of the screw 25 passes through the fixing rod 26 and is keyed to a second handle 251. External force drives the second handle 251 to rotate, causing the screw 25 to rotate, driving the transmission rod 24 to move forward, and linking the positioning piece 27 to move forward, so that its end is accurately inserted into the positioning groove 271, completing the locking cooperation between the lifting frame 13 and the combiner cabinet 1.

[0043] The purpose is, firstly, to enhance the stability of the lifting frame 13 during the lifting process to prevent it from shifting or shaking; secondly, to provide a solid support foundation for the locking assembly and the lifting mechanism, further ensuring the safety and reliability of the overall lifting operation.

[0044] The lifting frame 13 is moved upward in a controlled manner, and the linkage positioning member 27 moves upward on the transmission rod 24. When the lifting frame 13 and the positioning member 27 are moved up to a height suitable for lifting the combiner cabinet 1, that is, when the end of the positioning member 27 is aligned with the positioning groove 271, the external force rotates the handle 251, the screw 25 is controlled to rotate, and then the transmission rod 24 is moved forward, and the positioning member 27 is moved forward in a linked manner, and its end is accurately inserted into the positioning groove 271, thereby realizing the mechanical locking between the lifting frame 13 and the combiner cabinet 1. At this time, the lifting frame 13 and the combiner cabinet 1 are stably connected, and the lock assembly and the lifting mechanism are locked synchronously, thereby enhancing the overall structural stability and load-bearing safety during the lifting process.

[0045] When the combiner cabinet 1 is hoisted to the installation site, in order to achieve a smooth descent of the combiner cabinet 1, the present device uses a buffer mechanism to effectively absorb the impact of landing and reduce the shaking of the equipment. The bottom of the combiner cabinet 1 is provided with two groups of symmetrically distributed buffer grooves 35, and the bottom of the transmission rod 24 is fixedly connected with an extrusion frame 3 with a broken line design. The end of the extrusion frame 3 is provided with a limiting groove 36, and the sliding frame 31 is slidably connected in the limiting groove 36 to guide the moving trajectory of the sliding frame 31.

[0046] refer to Figure 6 The two ends of the sliding frame 31 are fixed with slides 37, the slides 37 correspond to the buffer grooves 35 one by one, and the slides 37 are built-in and slidably connected to the adjacent buffer grooves 35. A buffer part 32 is slidably connected to each slide 37, and a buffer spring 34 is provided between the buffer part 32 and the slide 37.

[0047] During hoisting and positioning, when the junction cabinet 1 approaches the installation position, the handle 251 is rotated in the opposite direction, the screw 25 is rotated in a controlled manner, and then the transmission rod 24 is driven to move backward, and the extrusion frame 3 is moved backward in a controlled manner. Under the action of the limit groove 36, the sliding frame 31 moves downward in the limit groove 36, and the linkage slide plate 37 and the buffer member 32 both move downward until the buffer member 32 contacts the installation ground and the buffer spring 34 is deformed. In this process, the cooperation of the buffer member 32 and the buffer spring 34 effectively absorbs the impact force and extrusion force generated when the junction cabinet 1 falls to the ground, reduces the influence of the rigid collision between the equipment and the ground, and thus significantly reduces the vibration and shaking of the junction cabinet 1 during the descent into position, and achieves a smooth and safe landing.

[0048] refer to Figure 6 The bottom of the buffer 32 is equipped with an array of balls 33. These freely rotating balls 33 provide low-friction support for fine-tuning the combiner cabinet 1 during installation. This structural design effectively enhances the flexibility of the equipment's posture adjustment when it is placed on the ground, facilitating precise positioning while reducing installation resistance caused by ground friction, further enhancing the convenience and positioning accuracy of the lifting operation.

[0049] In summary, the present device regulates the lifting frame 13 to descend to a lower position of the junction cabinet 1, so that the lock ring 15 and the lock ring 2 16 are at a height that is convenient for operation, and maintains a stable connection through the closed lock ring formed by the lock ring 15 and the lock ring 2, and the locking structure formed between the lock ring 1 and the lifting hook. The lifting hook is squeezed and limited by the upward movement of the moving part 22, so that the lifting hook maintains a rigid connection with the upper splicing area of ​​the lock ring 15 and the lock ring 2 16, avoiding unexpected disconnection between the lifting hook and the lock ring due to vibration, impact or force changes during the lifting process, and effectively avoiding the high-risk operation method of manually climbing to the top of the junction cabinet 1 to perform the hook operation in the traditional lifting process, significantly reducing the manual intervention link, improving the safety and convenience of the lifting operation, and at the same time simplifying the construction process, improving the overall installation efficiency and engineering automation level.

[0050] By regulating the lifting frame 13 to move upward, the lock ring 15, the lock ring 2 16 and the guide groove 17 cooperate, and then the rotating part 21, the guide part 23 and the movable part 22 move in conjunction, so that effective avoidance space is generated between the lock ring 15 and the lock ring 2 16, and between the movable part 22 and the lifting hook, so that the lifting hook can be smoothly moved out of the gap, completing the interference-free unhooking operation.

[0051] Through the coordination of the second handle 251, the screw 25, the transmission rod 24, and the extrusion frame 3, the linkage slide 37 and the buffer 32 are all moved downward until the buffer 32 contacts the installation ground. Through the coordination of the buffer 32 and the buffer spring 34, the impact force and extrusion force generated when the combiner cabinet 1 falls to the ground are effectively absorbed, and the influence of the rigid collision between the equipment and the ground is reduced, thereby significantly reducing the vibration and shaking of the combiner cabinet 1 during the process of lowering into position, and achieving a smooth and safe landing.

[0052] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An energy storage combiner cabinet for a photovoltaic power station, comprising a combiner cabinet (1), characterized in that: A lifting frame (13) with controlled lifting is provided on the waist of the junction cabinet (1); the lifting frame (13) is U-shaped, and its two ends are surrounded on both sides of the junction cabinet (1); and at least two groups of locking components with controlled opening and closing are provided on the lifting frame (13).

2. The energy storage combiner cabinet for a photovoltaic power station according to claim 1, characterized in that: The locking assembly comprises at least two groups of locking rings 1 (15) and 2 (16) which are slidably connected to the lifting frame (13); the ends of the locking rings 1 (15) and 2 (16) are spliced ​​with each other by using a mortise and tenon structure; both side walls of the junction cabinet (1) are provided with broken line guide grooves (17) which correspond one to one with the locking rings 1 (15) and 2 (16); the ends of the locking rings 1 (15) and 2 (16) are slidably connected in the guide grooves (17).

3. The energy storage combiner cabinet for a photovoltaic power station according to claim 2, characterized in that: A guide member (23) is fixedly connected to the front side wall of the lock ring (15), a gap exists between the guide member (23) and the adjacent lock ring (15), and a moving member (22) is slidably connected to the guide member (23).

4. The energy storage combiner cabinet for a photovoltaic power station according to claim 3, characterized in that: One side of the locking ring (15) is connected to a rotating part (21), the end of which is H-shaped. A torsion spring (28) is compressed between the rotating part (21) and the locking ring (15). One side of the moving part (22) is fixed with a short column (29), which is embedded in and clamped in the H-shaped end gap of the rotating part (21). The junction cabinet (1) is provided with an extrusion part (2) corresponding to the rotating part (21). The extrusion part (2) passes through the lifting frame (13) and extends upward. The extended end of the extrusion part produces an extrusion limit on the rotating part (21).

5. The energy storage combiner cabinet for a photovoltaic power station according to claim 1, characterized in that: The rear side wall of the junction cabinet (1) is provided with two symmetrically distributed support platforms (10), the two support platforms (10) are distributed up and down, a rotating shaft (111) is connected to the bottom support platform (10), the end of the rotating shaft (111) is key-connected with a bevel gear (112), the bevel gear (112) is key-connected with a screw rod (11), the top of the screw rod (11) is connected to the support platform (10) at the top of the junction cabinet (1), and the bottom support platform (10) is also fixedly connected with a A support ear (113) is connected to a handle (114) on the support ear (113), and the handle (114) passes through one end of the support ear (113) and is keyed to a bevel gear (12). The bevel gear (12) and the bevel gear (112) are meshed and driven. The lifting frame (13) is threadedly connected to the screw rod (11). Guide rods (14) are fixed on the left and right side walls of the junction cabinet (1), and the lifting frame (13) is slidably connected to the adjacent guide rods (14).

6. The energy storage combiner cabinet for a photovoltaic power station according to claim 5, characterized in that: A positioning piece (27) is embedded and slidably connected on the lifting frame (13), and the end of the positioning piece (27) passes through the lifting frame (13). A positioning groove (271) matching the end of the positioning piece (27) is opened on the rear side wall of the junction cabinet (1).

7. The energy storage combiner cabinet for a photovoltaic power station according to claim 6, characterized in that: A fixing rod (26) is fixedly connected to the rear side wall of the junction cabinet (1), a transmission rod (24) is slidably connected to the fixing rod (26), the transmission rod (24) is slidably connected to the positioning member (27), the end of the fixing rod (26) is threadedly connected to a screw rod (25), the end of the screw rod (25) is threadedly connected to the rear side wall of the junction cabinet (1), and the front end of the screw rod (25) passing through the fixing rod (26) is keyed to a handle 2 (251).

8. The energy storage combiner cabinet for a photovoltaic power station according to claim 7, characterized in that: The bottom of the junction cabinet (1) is provided with two groups of symmetrically distributed buffer grooves (35); the bottom of the transmission rod (24) is fixedly connected with an extrusion frame (3) designed in a broken line shape; the end of the extrusion frame (3) is provided with a limiting groove (36); and a sliding frame (31) is slidably connected through the limiting groove (36).

9. The energy storage combiner cabinet for a photovoltaic power station according to claim 8, characterized in that: Both ends of the sliding frame (31) are fixed with slide plates (37), the slide plates (37) correspond to the buffer grooves (35) one by one, and the slide plates (37) are slidably connected with buffer members (32), and a buffer spring (34) is provided between the buffer member (32) and the slide plates (37).

10. The energy storage combiner cabinet for a photovoltaic power station according to claim 9, characterized in that: The bottom of the buffer (32) is provided with rolling balls (33) distributed in an array.

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