A photovoltaic inverter cabinet

Abstract

The utility model discloses a kind of photovoltaic inverter cabinets, it is related to photovoltaic inverter cabinet technical field.The utility model includes cabinet and cabinet door, installation frame is arranged in the cabinet.The utility model can make U-shaped block move and winding roller rotate by motor, screw, U-shaped block moves and will be placed by trapezoidal block The table moves, the table moves and will make inverter body move, when U-shaped block and the side of trapezoidal block contact, inverter body moves out of cabinet, and then it is convenient to maintain inverter body, while winding roller rotates and will be relaxed and winding to pull rope, and then make the vertical surface of trapezoidal block and the side of U-shaped block contact, to limit effect, effectively avoid that table is in the state of extraction and shake, guarantee the stability of maintenance operation, while by inserting rod, slot, adjusting table can make inverter body rotate, to facilitate the maintenance of multiple positions of inverter body.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic inverter cabinet technology, specifically to a photovoltaic inverter cabinet. Background Technology

[0002] Photovoltaic inverters are the core components of solar photovoltaic power generation systems. Their core function is to efficiently and safely convert the direct current generated by photovoltaic solar panels into alternating current that is in phase and frequency with the public power grid and can be directly supplied to household appliances or connected to the grid. In actual installation and use, photovoltaic inverters are usually carefully assembled and placed in a cabinet to ensure that the inverters maintain a stable working state in complex operating environments and continuously and efficiently perform their power conversion efficiency.

[0003] Existing technology, patent CN219938843U, discloses an inverter mounting cabinet. This cabinet utilizes a ventilation grille, limiting groove, first filter plate, handle, switch assembly, heat dissipation mechanism, vent, ventilation frame, second filter plate, air inlet grille, cooling fan, partition, heat collector plate, water-cooled pipe, water pump, water tank, heat exchanger, water pipe, shock absorber plate, shock absorber mechanism, limiting rod, shock absorber, support movement mechanism, screw, limiting disc, and support tube to accelerate airflow within the cabinet, thereby speeding up… Cooling the electronic components inside the cabinet can prevent the inverter from being damaged by overheating. However, the inverter is mounted on a shock-absorbing plate and cannot be pulled out. In addition, the internal space of the cabinet is small, which greatly increases the difficulty of subsequent maintenance and repair. Some cabinets use drawer-type pull-out panels, which can pull the inverter out for inspection during maintenance. However, the pull-out panels cannot be completely pulled out of the cabinet, making it difficult to carry out multi-angle maintenance operations. Moreover, after being pulled out, it is not easy to limit the inverter, which can easily cause shaking during maintenance, affecting the convenience of operation and making it inconvenient to use. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a photovoltaic inverter cabinet. This cabinet addresses the problems of inverters being mounted on vibration-damping plates and unable to be pulled out, as well as the limited internal space of the cabinet making maintenance and repair inconvenient. While some designs use drawer-type pull-out panels, allowing the inverter to be pulled out for inspection during maintenance, these panels cannot be completely removed from the cabinet, hindering multi-angle maintenance operations. Furthermore, after being pulled out, the panels are prone to shaking, affecting operational convenience and making the cabinet unusable.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a photovoltaic inverter cabinet, comprising a cabinet body and a cabinet door, wherein a mounting frame is provided inside the cabinet body, an inverter body is fixedly mounted on the mounting frame, and a drive mechanism is provided on the cabinet body to move the mounting frame.

[0006] The driving mechanism includes two telescopic rods installed on the inner wall of the side of the cabinet. Each end of the two telescopic rods is fitted with a fixing block. A placement platform is mounted on the side of both fixing blocks. A rotating groove is formed at the top of the placement platform, and an adjusting platform is rotatably mounted on the groove. The mounting frame is mounted on the top of the adjusting platform. A U-shaped block is installed inside the cabinet, with two compression wheels mounted on its top. Two trapezoidal blocks and a pull rope are respectively installed on the bottom inner wall and side of the placement platform. A driving support assembly is provided on the cabinet to allow the U-shaped block to move while simultaneously winding the pull rope. A limiting assembly is provided on the cabinet to limit the movement of the mounting frame.

[0007] Preferably, the drive assembly includes a motor mounted on the inner wall of the top of the cabinet, a lead screw rotatably mounted on the inner wall of the bottom of the cabinet, the top end of the lead screw being mounted on the output shaft of the motor, a U-shaped block threaded onto the lead screw, a first guide rod mounted on the inner wall of the bottom of the cabinet, a first guide hole opened on the top of the U-shaped block, the first guide rod passing through the first guide hole, two support blocks mounted on the side of the U-shaped block, a take-up roller fixedly mounted on the lead screw, the other end of the pull rope being mounted on the outer wall of the take-up roller, two support plates mounted on the inner wall of the side of the cabinet, a positioning rod rotatably mounted on the sides of the two support plates, and an auxiliary support unit provided on the placement platform.

[0008] Preferably, the auxiliary support unit includes a threaded rod rotatably mounted on the inner wall of the bottom of the placement platform, the top end of the threaded rod extending to the outside of the placement platform and equipped with a knob, a U-shaped lifting plate threaded onto the threaded rod, a second guide rod installed at the bottom of the placement platform, a second guide hole opened at the top of the U-shaped lifting plate, the second guide rod passing through the second guide hole, two directional wheels installed at the bottom of the U-shaped lifting plate, and two placement slots opened on the inner wall of the bottom of the cabinet.

[0009] Preferably, the limiting component includes two rectangular rods installed on opposite inner walls of the cabinet, with U-shaped movable plates slidably installed on each of the two rectangular rods. A trapezoidal plate and a limiting plate are respectively installed on the bottom inner wall and side of the U-shaped movable plate. Protective pads are installed on the sides of both limiting plates. Multiple ball bearings are movably installed on the bottom of the U-shaped block. Elastic units are provided on the sides of both U-shaped movable plates.

[0010] Preferably, the elastic unit includes tension springs respectively installed on the two U-shaped movable plates, and the other ends of the two tension springs are respectively installed on the inner walls of the two sides of the cabinet.

[0011] Preferably, the side of the placement platform is provided with an insertion hole that communicates with the rotating groove, and an insertion rod is slidably installed on the insertion hole. The outer periphery of the adjustment platform is provided with multiple slots.

[0012] Preferably, an arc-shaped protective plate is installed on the top of the mounting frame, and a scraper is installed on the top inner wall of the cabinet.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention uses a motor and lead screw to raise the U-shaped block and rotate the winding roller. The rising U-shaped block compresses the trapezoidal block via an extrusion roller, causing the placement platform to move. This movement of the placement platform, in turn, moves the inverter body via an adjustment platform and mounting frame. When the extrusion roller at the top of the U-shaped block contacts the side of the trapezoidal block, the inverter body is completely removed from the cabinet, facilitating maintenance. Simultaneously, the rotation of the winding roller loosens the pull rope before rewinding it in the opposite direction, causing the vertical surface of the trapezoidal block to contact the side of the U-shaped block. This limits the L-shaped placement platform, effectively preventing it from wobbling when pulled out and ensuring the stability of maintenance operations. Furthermore, the rotation of the slot, rod, groove, adjustment platform, and mounting frame allows the inverter body to rotate, facilitating maintenance at multiple locations on the inverter body.

[0015] This utility model, through the arrangement of ball bearings, rectangular rods, U-shaped plates, trapezoidal plates, tension springs, limiting plates, and protective pads, facilitates the release of the limiting mechanism on the mounting frame during maintenance and the limiting mechanism on the mounting frame during placement. This effectively prevents the mounting frame from accidentally rotating through the adjustment platform during equipment use, thus affecting the stability of the wiring connection. The arrangement of support blocks, threaded rods, U-shaped lifting plates, and positioning wheels facilitates the replication and support of the placement platform, preventing the overall structure from tilting due to excessive load on one end. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram from a first-view perspective of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of a partial cross-section of the cabinet in this utility model;

[0018] Figure 3 This is a three-dimensional structural schematic diagram of a partial cross-section of the cabinet, placement platform, and adjustment platform in this utility model;

[0019] Figure 4 yes Figure 3 Enlarged structural diagram at point A in the middle;

[0020] Figure 5 yes Figure 3 Enlarged structural diagram at point B;

[0021] Figure 6 This is a partially enlarged side view of the cabinet, placement platform, and adjustment platform in this utility model.

[0022] Figure 7 This is a partially enlarged bottom view of the structure of this utility model, excluding the cabinet.

[0023] Attached reference numerals: 1. Cabinet; 2. Placement platform; 3. Insert rod; 4. Placement slot; 5. Fixing block; 6. Mounting frame; 7. Inverter body; 8. Telescopic rod; 9. Adjustment platform; 10. Motor; 11. Lead screw; 12. U-shaped block; 13. Trapezoidal block; 14. Rewind roller; 15. Pull rope; 16. Positioning rod; 17. Threaded rod; 18. U-shaped lifting plate; 19. Rectangular rod; 20. U-shaped movable plate; 21. Tension spring; 22. Trapezoidal plate; 23. Limiting plate; 24. Arc-shaped protective plate. Detailed Implementation

[0024] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0025] Figures 1 to 7 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 ~Attached Figure 7 The present invention will be further described below.

[0026] A photovoltaic inverter cabinet includes a cabinet body 1 and a cabinet door. A mounting frame 6 is provided inside the cabinet body 1, and an inverter body 7 is fixedly mounted on the mounting frame 6. A drive mechanism is provided on the cabinet body 1 to move the mounting frame 6. Specifically, during connection, the plug is fixed to the side of the cabinet body 1, and the plug and socket are aligned. At the same time, by moving the inverter body 7 horizontally, the plug and socket are inserted to connect, thereby achieving the purpose of mobile connection. Alternatively, a cable reel can be provided inside the cabinet body 1 to wind or unwind the connecting cable of the plug, and then the plug is inserted into the socket on the inverter body 7 and moves with the inverter body 7.

[0027] The drive mechanism includes two telescopic rods 8 installed on the inner side wall of the cabinet 1. Each end of the two telescopic rods 8 is equipped with a fixing block 5. A placement platform 2 is installed between the two fixing blocks 5. Specifically, the placement platform 2 is L-shaped. A rotating groove is opened on the top of the placement platform 2. An adjustment platform 9 is rotatably installed on the rotating groove. The mounting frame 6 is installed on the top of the adjustment platform 9. A U-shaped block 12 is provided inside the cabinet 1. Two extrusion wheels are installed on the top of the U-shaped block 12. Two trapezoidal blocks 13 and a pull rope 15 are respectively installed on the bottom inner wall and side of the placement platform 2. A drive support assembly is provided on the cabinet 1 to make the U-shaped block 12 move while winding the pull rope 15. A limiting assembly is provided on the cabinet 1 to limit the mounting frame 6. Specifically, the length of the trapezoidal block 12 is greater than the distance between the end of the mounting frame 6 away from the cabinet door and the cabinet door.

[0028] With the above structure, during maintenance, the U-shaped block 12 can be raised by driving the support assembly. As the U-shaped block 12 rises, it first releases the limit on the mounting frame 6 via the limiting assembly. Simultaneously, the drive support assembly loosens the pull rope 15, allowing the U-shaped block 12 to continue rising. When the compression wheel at the top of the U-shaped block 12 contacts the trapezoidal block 13, the continued rise of the U-shaped block 12 applies a force to the trapezoidal block 13 through the compression wheel. The trapezoidal block 13 moves under this force. Guided by the fixed block 5 and the telescopic rod 8, the trapezoidal block 13 can only move horizontally and cannot move vertically. This horizontal movement of the trapezoidal block 13 causes the placement platform 2 to move towards the cabinet door. The movement of the placement platform 2 causes the adjustment platform 9 to move via the rotating groove. The movement of the adjustment platform 9 causes the mounting frame 6 to move, which in turn causes the inverter body 7 to move. When the compression wheel at the top of the U-shaped block 12 contacts the side of the trapezoidal block 13, the mounting frame 6 is completely removed from the cabinet 1, facilitating maintenance of the inverter body 7. At this point, the pull rope 15 is completely slack, and the U-shaped block 12 continues to rise. Simultaneously, the drive support assembly rewinds the pull rope 15. The rewinding of the pull rope 15 pulls the placement platform 2 to reset and move. The reset and movement of the placement platform 2 causes the trapezoidal block 13 to reset and move. When the side of the trapezoidal block 13 near the lead screw 11 abuts against the side of the U-shaped block 12 away from the lead screw 11, the motor 10 stops outputting, and the pull rope 15 tightens. At this time, the pull rope 15 pulls the placement platform 2, preventing it from moving outward. At the same time, the U-shaped block 12 blocks the trapezoidal block 13, preventing it from moving inward. The trapezoidal block 13 being limited prevents the placement platform 2 from moving, thus limiting the placement platform 2 and effectively preventing it from shaking in the pulled-out state, ensuring the stability of maintenance operations. At the same time, when maintaining other positions, rotating the adjustment platform 9 causes the mounting frame 6 to rotate, which in turn causes the inverter body 7 to rotate, thus facilitating maintenance of multiple positions of the inverter body 7.

[0029] like Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, the drive assembly includes a motor 10 installed on the inner wall of the top of the cabinet 1, a lead screw 11 rotatably installed on the inner wall of the bottom of the cabinet 1, the top of the lead screw 11 being installed on the output shaft of the motor 10, a U-shaped block 12 threadedly sleeved on the lead screw 11, a first guide rod installed on the inner wall of the bottom of the cabinet 1, a first guide hole opened on the top of the U-shaped block 12, the first guide rod passing through the first guide hole, two support blocks installed on the side of the U-shaped block 12, a winding roller 14 fixedly sleeved on the lead screw 11, the other end of the pull rope 15 being wound around the winding roller 14, two support plates installed on the inner wall of the side of the cabinet 1, a positioning rod 16 rotatably installed on the side of the two support plates, and an auxiliary support unit provided on the placement platform 2.

[0030] Specifically, the motor 10, lead screw 11, and first guide rod facilitate the rise of the U-shaped block 12, thereby facilitating the movement of the placement platform 2. The winding roller 14 facilitates the winding of the pull rope 15. The support plate and positioning rod 16 facilitate the limiting of the pull rope 15, thereby facilitating the pulling of the placement platform 2. The support block ensures that when the side of the U-shaped block 12 contacts the side of the trapezoidal block 13, the support block contacts the bottom of the trapezoidal block 13, thus supporting the bottom of the trapezoidal block 13.

[0031] like Figure 1 and Figure 3 As shown, the auxiliary support unit includes a threaded rod 17 rotatably mounted on the inner wall of the bottom of the placement platform 2. The top of the threaded rod 17 extends to the outside of the placement platform 2 and is equipped with a knob. A U-shaped lifting plate 18 is threaded onto the threaded rod 17. A second guide rod is installed at the bottom of the placement platform 2. A second guide hole is opened at the top of the U-shaped lifting plate 18. The second guide rod passes through the second guide hole. Two directional wheels are installed at the bottom of the U-shaped lifting plate 18. Two placement slots 4 are opened on the inner wall of the bottom of the cabinet 1.

[0032] Specifically, during maintenance, the knob is manually turned, which drives the threaded rod 17 to rotate. The rotation of the threaded rod 17 causes the U-shaped lifting plate 18 to move up and down via the second guide rod. The up and down movement of the U-shaped lifting plate 18 causes the directional wheel to move up and down, thus bringing the directional wheel into contact with the ground during maintenance. The directional wheel then moves simultaneously with the placement platform 2, thereby providing auxiliary support to the other side of the placement platform 2 and preventing the overall structure from tilting due to excessive load on one end. When not in use, it can be raised for storage.

[0033] like Figure 5As shown, the limiting assembly includes two rectangular rods 19 installed on opposite inner walls of the cabinet 1. A U-shaped movable plate 20 is slidably installed on each of the two rectangular rods 19. A trapezoidal plate 22 and a limiting plate 23 are respectively installed on the bottom inner wall and side of the U-shaped movable plate 20. Protective pads are installed on the sides of both limiting plates 23. Multiple ball bearings are movably installed on the bottom of the U-shaped block 12. Elastic units are provided on the sides of both U-shaped movable plates 20.

[0034] Specifically, when the U-shaped block 12 moves, it drives the ball bearings to squeeze the trapezoidal block 22 and move it. The movement of the trapezoidal block 22, guided by the rectangular rod 19, causes the U-shaped movable plate 20 to move horizontally. The horizontal movement of the U-shaped movable plate 20 causes the limiting plate 23 to move. The movement of the limiting plate 23 facilitates the limiting of the mounting frame 6, thereby effectively preventing the mounting frame 6 from accidentally rotating through the adjusting table 9 during equipment use, which would affect the stability of the circuit connection.

[0035] like Figure 3 and Figure 5 As shown, the elastic unit includes tension springs 21 respectively installed on two U-shaped movable plates 20, and the other ends of the two tension springs 21 are respectively installed on the inner walls of the two sides of the cabinet 1.

[0036] Specifically, the tension spring 21 facilitates the movement of the U-shaped movable plate 20 when the U-shaped block 12 does not limit the trapezoidal plate 22, thereby causing the limiting plate 23 to move and thus avoiding affecting the movement of the placement platform 2.

[0037] like Figure 1 , Figure 4 and Figure 6 As shown, the side of the placement platform 2 has an insertion hole that communicates with the rotating groove, and an insertion rod 3 is slidably installed on the insertion hole. The outer wall of the adjustment platform 9 has multiple slots.

[0038] Specifically, the design of the socket, the rod 3, and the slot facilitates the limiting of the adjusted adjustment platform 9, thereby preventing the adjustment platform 9 from rotating during maintenance and affecting the maintenance process.

[0039] like Figure 1 and Figure 2 As shown, an arc-shaped protective plate 24 is installed on the top of the mounting frame 6, and a scraper is installed on the top inner wall of the cabinet 1.

[0040] Specifically, the curved protective plate 24 provides a certain degree of protection and facilitates maintenance of the mounting frame 6. The scraper facilitates scraping the surface of the curved protective plate 24, preventing impurities from entering the cabinet 1 during storage and affecting subsequent use.

[0041] In summary: When using this utility model, the inverter body 7 is first installed on the mounting frame 6 and protected by the cabinet 1 and the cabinet door. When maintenance is required, the cabinet door is opened first, and then the motor 10 is started. The output of the motor 10 will cause the lead screw 11 to rotate. The rotation of the lead screw 11 will cause the U-shaped block 12 to move upward under the action of the first guide rod. When the U-shaped block 12 moves upward and does not contact the two trapezoidal plates 22, the two trapezoidal plates 22 are not under force, and the two U-shaped movable plates 20 will move away from each other under the action of the two tension springs 21. The movement of the two U-shaped movable plates 20 will cause the two limiting plates 23 to move. The movement of plate 23 releases the restriction on mounting frame 6. Simultaneously, the rotation of screw 11 drives take-up roller 14 to rotate, causing pull rope 15 to loosen, thus continuing to raise U-shaped block 12. When the compression wheel at the top of U-shaped block 12 contacts trapezoidal block 13, the continued rise of U-shaped block 12 exerts a force on trapezoidal block 13. Under the action of fixed block 5 and telescopic rod 8, trapezoidal block 13 causes placement platform 2 to move. The movement of placement platform 2 causes adjustment platform 9 to move via the rotating groove. The movement of adjustment platform 9 causes mounting frame 6 to move, and the movement of mounting frame 6 causes inverter body 7 to move. When U-shaped block 1... When the top extrusion roller contacts the side of the trapezoidal block 13, the mounting frame 6 is completely removed from the cabinet 1, facilitating maintenance of the inverter body 7. At this time, the pull rope 15 is completely relaxed, and the U-shaped block 12 continues to rise. Simultaneously, the winding roller 14 continues to rotate, rewinding the pull rope 15. The rewinding of the pull rope 15 pulls the placement platform 2 to reset and move. The reset and movement of the placement platform 2 drives the trapezoidal block 13 to reset and move. When the side of the trapezoidal block 13 near the lead screw 11 abuts against the side of the U-shaped block 12 away from the lead screw 11, the motor 10 stops outputting, and the pull rope 15 tightens. At this time, the pull rope 15 tightens the pressure on the placement platform. 2. Pulling it prevents it from moving outward, while U-shaped block 12 blocks trapezoidal block 13, preventing it from moving inward. Trapezoidal block 13 being limited prevents placement platform 2 from moving, thus limiting placement platform 2 and effectively preventing it from shaking in the pulled-out state, ensuring the stability of maintenance operations. At the same time, when maintaining other positions, rotating adjustment platform 9 will cause mounting frame 6 to rotate, which in turn causes inverter body 7 to rotate. After adjusting to the appropriate angle, the adjustment platform 9 is limited by plug rod 3 and slot, thus facilitating maintenance of multiple positions of inverter body 7.

[0042] When maintenance is complete, the motor 10 is reversed, causing the lead screw 11 to rotate in the opposite direction. This rotation of the lead screw 11 causes the U-shaped block 12 to move downwards. Simultaneously, since the pull rope 15 is in a reverse winding state, the reverse rotation of the lead screw 11 causes the take-up roller 14 to rotate in the opposite direction. This reverse rotation of the take-up roller 14 first loosens the pull rope 15. When the pull rope 15 is fully released, the rectangular rotation of the take-up roller 14 rewinds the pull rope 15. The rewinding of the pull rope 15 pulls the placement platform 2, causing it to move, thus facilitating the installation... When frame 6 is moved into cabinet 1, the ball bearing at the bottom of U-shaped block 12 contacts trapezoidal plate 22. As U-shaped plate 12 continues to move downward, it will squeeze trapezoidal plate 22, causing it to reset and move. The reset and movement of trapezoidal plate 22 will cause U-shaped movable plate 20 to move. The movement of U-shaped movable plate 20 will cause limit plate 23 to move. When the protective pad on limit plate 23 contacts mounting frame 6, motor 10 stops outputting, thereby limiting mounting frame 6 during placement. This effectively prevents mounting frame 6 from accidentally rotating through adjustment table 9 during equipment use, which would affect the stability of the circuit connection.

[0043] When the trapezoidal block 13 contacts the side of the U-shaped block 12, the two support blocks support the bottom of the trapezoidal block 13. At the same time, the movement of the placement platform 2 will cause the guide wheel to move through the threaded rod 17 and the U-shaped lifting plate 18. When the guide wheel moves out of the cabinet 1, the knob is turned. The rotation of the knob will cause the threaded rod 17 to rotate. Under the action of the second guide rod, the threaded rod 17 will cause the U-shaped lifting plate 18 to descend. The descent of the U-shaped lifting plate 18 will cause the guide wheel to descend, thus making the guide wheel contact the ground, thereby providing auxiliary support for the other side of the placement platform 2 and preventing the overall structure from tilting due to excessive load on one end.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A photovoltaic inverter cabinet, comprising a cabinet body (1) and a cabinet door, characterized in that, An installation frame (6) is provided inside the cabinet (1), and an inverter body (7) is fixedly installed on the installation frame (6). A drive mechanism for moving the installation frame (6) is provided on the cabinet (1). The driving mechanism includes two telescopic rods (8) installed on the inner side wall of the cabinet (1). Each end of the two telescopic rods (8) is equipped with a fixing block (5). The sides of the two fixing blocks (5) are jointly equipped with a placement platform (2). A rotating groove is opened on the top of the placement platform (2). An adjustment platform (9) is rotatably installed on the rotating groove. The mounting frame (6) is installed on the top of the adjustment platform (9). A U-shaped block (12) is provided inside the cabinet (1). Two extrusion wheels are installed on the top of the U-shaped block (12). Two trapezoidal blocks (13) and a pull rope (15) are respectively installed on the bottom inner wall of the placement platform (2) and the side away from the cabinet door. A driving support assembly is provided on the cabinet (1) to make the U-shaped block (12) move while winding the pull rope (15). A limiting assembly is provided on the cabinet (1) to limit the mounting frame (6).

2. A photovoltaic inverter cabinet according to claim 1, characterized in that, The drive assembly includes a motor (10) installed on the inner wall of the top of the cabinet (1), a lead screw (11) rotatably installed on the inner wall of the bottom of the cabinet (1), the top end of the lead screw (11) being installed on the output shaft of the motor (10), a U-shaped block (12) being threaded onto the lead screw (11), a first guide rod being installed on the inner wall of the bottom of the cabinet (1), a first guide hole being opened on the top of the U-shaped block (12), the first guide rod passing through the first guide hole, two support blocks being installed on the side of the U-shaped block (12), a winding roller (14) being fixedly sleeved on the lead screw (11), the other end of the pull rope (15) being installed on the outer wall of the circumferential side of the winding roller (14), two support plates being installed on the inner wall of the side of the cabinet (1), and a positioning rod (16) being rotatably installed on the side of the two support plates, and an auxiliary support unit being provided on the placement platform (2).

3. A photovoltaic inverter cabinet according to claim 2, characterized in that, The auxiliary support unit includes a threaded rod (17) rotatably mounted on the inner wall of the bottom of the placement platform (2). The top end of the threaded rod (17) extends to the outside of the placement platform (2) and is equipped with a knob. A U-shaped lifting plate (18) is threaded onto the threaded rod (17). A second guide rod is installed at the bottom of the placement platform (2). A second guide hole is opened at the top of the U-shaped lifting plate (18). The second guide rod passes through the second guide hole. Two directional wheels are installed at the bottom of the U-shaped lifting plate (18). Two placement slots (4) are opened on the inner wall of the bottom of the cabinet (1).

4. A photovoltaic inverter cabinet according to claim 1, characterized in that, The limiting component includes two rectangular rods (19) installed on opposite inner walls of the cabinet (1). A U-shaped movable plate (20) is slidably installed on each of the two rectangular rods (19). A trapezoidal plate (22) and a limiting plate (23) are respectively installed on the bottom inner wall and side of the U-shaped movable plate (20). Protective pads are installed on the sides of the two limiting plates (23). Multiple ball bearings are movably installed on the bottom of the U-shaped block (12). Elastic units are provided on the sides of the two U-shaped movable plates (20).

5. A photovoltaic inverter cabinet according to claim 4, characterized in that, The elastic unit includes tension springs (21) respectively installed on the two U-shaped movable plates (20), and the other ends of the two tension springs (21) are respectively installed on the inner walls of the two sides of the cabinet (1).

6. A photovoltaic inverter cabinet according to claim 1, characterized in that, The side of the placement platform (2) is provided with an insertion hole that communicates with the rotating groove, and a plug rod (3) is slidably installed on the insertion hole. The outer wall of the adjustment platform (9) is provided with multiple slots.

7. A photovoltaic inverter cabinet according to claim 1, characterized in that, An arc-shaped protective plate (24) is installed on the top of the mounting frame (6), and a scraper is installed on the top inner wall of the cabinet (1).

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