Photovoltaic combiner box maintenance equipment

Abstract

The utility model discloses a kind of photovoltaic combiner box maintenance equipment, belong to combiner box maintenance technical field, including movable frame;Adjustable clamping mechanism for adaptive adjustment pair according to the width of photovoltaic combiner box grounding system shell is installed on the movable frame;Movable frame is installed on the bolt tightness detection mechanism of detecting the bolt tightness of the grounding system shell on photovoltaic combiner box;The bolt tightness detection mechanism includes secondary positioning assembly, secondary positioning drive assembly and detection mark component;Secondary positioning assembly is positioned to detection mark component according to bolt position;Secondary positioning drive assembly is for driving secondary positioning assembly;Detection mark component is for detecting and marking bolt.By the above-mentioned mode, the utility model can realize the bolt tightness of photovoltaic combiner box grounding system shell is automatically detected and automatically marked to unqualified.

Description

Technical Field

[0001] This utility model relates to the field of combiner box maintenance technology, specifically to a photovoltaic combiner box maintenance device. Background Technology

[0002] Photovoltaic combiner box maintenance equipment is a specialized tool suite designed to ensure stable operation of photovoltaic combiner boxes, troubleshoot faults, and extend equipment lifespan. The photovoltaic combiner box grounding system is the core protective structure ensuring safety during maintenance operations and preventing electric shock accidents caused by equipment leakage. Its design and operation are directly related to the safety of maintenance personnel and the accuracy of equipment testing. This protective grounding section requires reliably connecting the metal casing and exposed conductive parts of the maintenance equipment to the grounding electrode via a dedicated grounding wire. This ensures that in the event of a leakage current due to an internal circuit fault, the current can be quickly conducted to the ground through the grounding loop, preventing the casing from becoming electrified and endangering personnel. The working grounding is for the signal circuits of testing equipment, eliminating electromagnetic interference through stable grounding and ensuring the accuracy of measured data for electrical parameters such as DC voltage and current.

[0003] Chinese patent CN109174709B discloses a maintenance robot for photovoltaic combiner boxes, including a main board, an internal cleaning mechanism, two gap cleaning mechanisms, a support mechanism, and a cleaning brush dust removal mechanism. The internal cleaning mechanism is mounted on the main board, with two gap cleaning mechanisms installed in the middle. A support mechanism is installed at the front end of the internal cleaning mechanism, and cleaning brush dust removal mechanisms are evenly mounted on the support mechanism. This device solves the problems of existing photovoltaic combiner box interfaces requiring manual cleaning, which is tedious and complex. Manual cleaning leaves residual dust inside the interfaces, and cleaning tools are time-consuming, labor-intensive, and inefficient. It can achieve comprehensive cleaning of the photovoltaic combiner box interfaces and surrounding areas, automating the cleaning process, reducing time, and offering advantages such as simple operation, low labor intensity, and high work efficiency. However, this device still has the following problems: During maintenance, staff need to check the tightness of each bolt along the outer casing of the photovoltaic combiner box grounding system. This device can only clean the photovoltaic combiner box; the tightness of the bolts on the outer casing of the photovoltaic combiner box grounding system still needs to be checked by maintenance personnel by manually tightening the bolts.

[0004] Based on this, this utility model designs a photovoltaic combiner box maintenance device to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a photovoltaic combiner box maintenance device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A photovoltaic combiner box maintenance device, including a mobile frame; The mobile frame is equipped with an adjustable clamping mechanism for adaptively adjusting the pair according to the width of the photovoltaic combiner box grounding system shell; The mobile frame is equipped with a bolt tightness detection mechanism to detect the tightness of bolts on the outer shell of the photovoltaic combiner box grounding system; The bolt tightness detection mechanism includes a secondary positioning component, a secondary positioning drive component, and a detection marking component. The secondary positioning component is used to position the detection marking component according to the bolt position. The secondary positioning drive component is used to drive the secondary positioning component. The detection marking component is used to detect and mark the bolt. The movable frame, the adjustable clamping mechanism, and the detection marking component are all connected to the secondary positioning component. The movable frame, the adjustable clamping mechanism, and the secondary positioning component are all connected to the secondary positioning drive component.

[0007] Furthermore, the secondary positioning component includes a positioning cylinder; two positioning cylinders are symmetrically distributed left and right, the left positioning cylinder is slidably connected to the movable frame; the right positioning cylinder is connected to the adjustable clamping mechanism; an arc-shaped positioning groove is provided on the inner side of the positioning cylinder; the inner side of the positioning cylinder is connected to the detection mark component; and the outer side of the positioning cylinder is connected to the secondary positioning drive component.

[0008] Furthermore, the secondary positioning drive assembly includes a second drive plate and a push cylinder; the outer side of the positioning cylinder is fixedly connected to the second drive plate; the second drive plate is fixedly connected to the drive end of the push cylinder; the push cylinder on the left side is fixedly connected to the moving frame; and the push cylinder on the right side is connected to the adjustable clamping mechanism.

[0009] Furthermore, the detection marking assembly includes a marking nozzle, a liquid supply pipe, and an ultrasonic probe; the marking nozzle and the ultrasonic probe are fixedly installed inside the positioning cylinder; the marking nozzle is fixedly connected to and communicates with the liquid supply pipe.

[0010] Furthermore, the adjustable clamping mechanism includes a moving component, a clamping component, and a clamping limiting component; the moving component is used to drive the moving frame to move; the clamping component is used to adjust the clamping according to the width of the grounding system shell; the clamping limiting component is used to limit the clamping component; the moving frame and the clamping component are both connected to the moving component; the moving frame, the positioning cylinder, the push cylinder, and the clamping limiting component are all connected to the clamping component; the moving frame is connected to the clamping limiting component.

[0011] Furthermore, the moving component includes moving rollers, a motor, and displacement sensors; multiple moving rollers are rotatably connected to the lower end of the moving frame, and one of the moving rollers is fixedly connected to the motor drive end; the motor is fixedly connected to the moving frame; two displacement sensors are symmetrically distributed; one displacement sensor is fixedly connected to the right inner wall of the moving frame; and the other displacement sensor is connected to the clamping component.

[0012] Furthermore, the clamping assembly includes an abutment limiting assembly, a limiting rod, and a movable plate; two sets of abutment limiting assemblies are symmetrically distributed left and right; one set of abutment limiting assemblies is connected to the movable frame; the other set of abutment limiting assemblies is connected to the movable plate; two limiting rods are symmetrically distributed front and back; the right end of the limiting rod is fixedly connected to the movable plate; the limiting rod is slidably connected to the movable frame; the movable plate is connected to the clamping limiting assembly; and the left inner wall of the movable plate is fixedly connected.

[0013] Furthermore, the clamping and limiting assembly includes a ratchet, a locking block, a sliding rod, a spring, and a drive plate; the upper left end of the moving plate is fixedly connected to the ratchet; the ratchet engages with the locking block; two sliding rods are symmetrically distributed front and back; the upper end of the locking block is fixedly connected to the sliding rod; a spring is sleeved on the outside of the sliding rod; the lower end of the spring is fixedly connected to the locking block, and the upper end of the spring is fixedly connected to the moving frame; the sliding rod and the moving frame are slidably limited; and the upper end of the sliding rod is fixedly connected to the drive plate.

[0014] Compared with the prior art, the advantages of this utility model are as follows: 1. This utility model can automatically detect the tightness of bolts on the outer shell of a photovoltaic combiner box grounding system and automatically mark those that are unqualified; 2. This utility model can also automatically adjust the clamping width according to the outer shell of the photovoltaic combiner box grounding system, which is convenient to adapt to the maintenance and inspection of different photovoltaic combiner boxes. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional photovoltaic combiner box maintenance device. Figure 1 ; Figure 2 This is a front view of a photovoltaic combiner box maintenance device according to this utility model; Figure 3 This is a left view of a photovoltaic combiner box maintenance device according to this utility model; Figure 4 This utility model provides a three-dimensional photovoltaic combiner box maintenance device. Figure 2 ; Figure 5 This is a perspective view of the positioning cylinder of this utility model; Figure 6 For along Figure 3 A sectional view along the AA direction; Figure 7 for Figure 6 Enlarged view of point B in the middle; Figure 8 This utility model provides a three-dimensional photovoltaic combiner box maintenance device. Figure 3 .

[0016] The labels in the diagram represent: 1. Movable frame; 2. Adjustable clamping mechanism; 21. Movable component; 211. Movable roller; 212. Motor; 213. Displacement sensor; 22. Clamping component; 221. Clamping roller; 222. Limiting rod; 223. Movable plate; 23. Clamping limiting component; 231. Ratchet; 232. Locking block; 233. Slide rod; 234. Spring; 235. Drive plate one; 3. Bolt tightness detection mechanism; 31. Secondary positioning component; 311. Positioning cylinder; 312. Arc-shaped positioning groove; 32. Secondary positioning drive component; 321. Drive plate two; 322. Push cylinder; 33. Detection marking component; 331. Marking nozzle; 332. Liquid supply pipe; 333. Ultrasonic probe; 4. Grounding system housing. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0019] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-8 A photovoltaic combiner box maintenance device includes a mobile frame 1; an adjustable clamping mechanism 2 is installed on the mobile frame 1 for adaptively adjusting the clamping mechanism according to the width of the photovoltaic combiner box grounding system shell 4; a bolt tightness detection mechanism 3 is installed on the mobile frame 1 for detecting the tightness of bolts on the photovoltaic combiner box grounding system shell 4; the bolt tightness detection mechanism 3 includes a secondary positioning component 31, a secondary positioning drive component 32, and a detection marking component 33; the secondary positioning component 31 is used to position the detection marking component 33 according to the bolt position; the secondary positioning drive component 32 is used to drive the secondary positioning component 31; the detection marking component 33 is used to detect and mark the bolts; the mobile frame 1, the adjustable clamping mechanism 2, and the detection marking component 33 are all connected to the secondary positioning component 31; the mobile frame 1, the adjustable clamping mechanism 2, and the secondary positioning component 31 are all connected to the secondary positioning drive component 32.

[0020] In this invention, when inspecting a photovoltaic combiner box, the operator places the movable frame 1 on the upper side of the grounding system housing 4; then, the adjustable clamping mechanism 2 adjusts the clamping width according to the thickness of the grounding system housing 4; simultaneously, the operator can perform maintenance and inspection on the photovoltaic box body; at this time, the adjustable clamping mechanism 2 drives the movable frame 1 to move along the grounding system housing 4. When it moves to the outside of the bolt, the secondary positioning drive component 32 drives the secondary positioning component 31 to approach the bolt. At the same time, the secondary positioning component 31 performs secondary positioning according to the bolt position. After the secondary positioning drive component 32 stops driving, the detection marking component 33 detects the bolt tightness. If the bolt tightness does not meet the standard, the detection marking component 33 marks the bolt. After the operator has finished inspecting the photovoltaic box body, they only need to tighten or replace the marked bolts.

[0021] The secondary positioning component 31 includes a positioning cylinder 311; two positioning cylinders 311 are symmetrically distributed left and right, the left positioning cylinder 311 is slidably connected to the movable frame 1; the right positioning cylinder 311 is connected to the adjustable clamping mechanism 2; an arc-shaped positioning groove 312 is provided on the inner side of the positioning cylinder 311; the inner side of the positioning cylinder 311 is connected to the detection mark component 33; the outer side of the positioning cylinder 311 is connected to the secondary positioning drive component 32; the secondary positioning drive component 32 includes a drive plate 321 and a push cylinder 322; the outer side of the positioning cylinder 311 is connected to the drive plate 321. The drive plate 321 is fixedly connected to the drive end of the push cylinder 322; the push cylinder 322 on the left side is fixedly connected to the moving frame 1; the push cylinder 322 on the right side is connected to the adjustable clamping mechanism 2; the detection marking assembly 33 includes a marking nozzle 331, a liquid supply pipe 332 and an ultrasonic probe 333; the marking nozzle 331 and the ultrasonic probe 333 are fixedly installed inside the positioning cylinder 311; the marking nozzle 331 is fixedly connected to and communicates with the liquid supply pipe 332; the liquid supply pipe 332 is fixedly connected to and communicates with the external ink supply mechanism.

[0022] The ultrasonic probe 333 adopts existing mature technologies in the field, such as the ultrasonic probe disclosed in Chinese CN118407883B.

[0023] In this invention, the push cylinder 322 is activated, which drives the positioning cylinder 311 to approach the bolt via the drive plate 321. The positioning cylinder 311 is then positioned a second time according to the bolt position via the arc-shaped positioning groove 312, so that the ultrasonic probe 333 and the marking nozzle 331 are aligned with the bolt. Then, the ultrasonic probe 333 detects the tightness of the bolt and sends the detection result to the central control unit. If the tightness of the bolt does not meet the requirements, the central control unit controls the ink supply valve of the external ink supply mechanism to open the marking nozzle 331 and spray marking liquid to mark the bolt, which is convenient for maintenance personnel to repair and reduces the workload of maintenance personnel to check the tightness of each bolt individually.

[0024] The adjustable clamping mechanism 2 includes a moving component 21, a clamping component 22, and a clamping limiting component 23. The moving component 21 is used to drive the moving frame 1 to move. The clamping component 22 is used to adjust the clamping according to the width of the grounding system housing 4. The clamping limiting component 23 is used to limit the clamping component 22. The moving frame 1 and the clamping component 22 are both connected to the moving component 21. The moving frame 1, the positioning cylinder 311, the push cylinder 322, and the clamping limiting component 23 are all connected to the clamping component 22. The moving frame 1 is connected to the clamping limiting component 23. The moving component 21 includes a moving roller 211, a motor 212, and a displacement sensor 213. Multiple moving rollers 211 are rotatably connected to the lower end of the moving frame 1, and one of the moving rollers 211 is fixed to the driving end of the motor 212. Connections: Motor 212 is fixedly connected to the movable frame 1; two displacement sensors 213 are symmetrically distributed; one displacement sensor 213 is fixedly connected to the right inner wall of the movable frame 1; the other displacement sensor 213 is connected to the clamping assembly 22; the clamping assembly 22 includes an abutment limiting assembly, a limiting rod 222, and a movable plate 223; two sets of abutment limiting assemblies are symmetrically distributed left and right; one set of abutment limiting assemblies is connected to the movable frame 1; the other set of abutment limiting assemblies is connected to the movable plate 223; two limiting rods 222 are symmetrically distributed front and back; the right end of the limiting rod 222 is fixedly connected to the movable plate 223; the limiting rod 222 is slidably connected to the movable frame 1; the movable plate 223 is connected to the clamping limiting assembly 23; the left inner wall of the movable plate 223 is fixedly connected.

[0025] The abutment limiting component includes clamping rollers 221; the two clamping rollers 221 are symmetrically distributed front and back, the two clamping rollers 221 on the left are fixedly connected to the movable frame 1; the two clamping rollers 221 on the right are fixedly connected to the movable plate 223.

[0026] The clamping and limiting assembly 23 includes a ratchet 231, a locking block 232, a sliding rod 233, a spring 234, and a drive plate 235. The upper left end of the moving plate 223 is fixedly connected to the ratchet 231. The ratchet 231 engages with the locking block 232. The two sliding rods 233 are symmetrically distributed front and back. The upper end of the locking block 232 is fixedly connected to the sliding rod 233. A spring 234 is sleeved on the outside of the sliding rod 233. The lower end of the spring 234 is fixedly connected to the locking block 232, and the upper end of the spring 234 is fixedly connected to the moving frame 1. The sliding rod 233 is slidably connected to the moving frame 1. The upper end of the sliding rod 233 is fixedly connected to the drive plate 235.

[0027] In this utility model, when maintenance personnel inspect the photovoltaic combiner box, they place the movable frame 1 on the upper side of the grounding system housing 4; then, they push the movable plate 223 to drive the limiting rod 222 to slide relative to the movable frame 1; the movement of the movable plate 223 pushes the ratchet 231 to move; the locking block 232 moves under the limitation of the sliding rod 233 by the push of the spring 234; so that the ratchet 231 can only move to the left, and is locked by the locking block 232 when moving to the right, thereby causing the clamping rollers 221 on both sides to clamp and abut against the two sides of the grounding system housing 4; During inspection, motor 212 drives the moving roller 211 to move along the grounding system housing 4. After the displacement sensor 213 senses the bolts on the grounding system housing 4, it sends an electrical signal to the central control unit. The central control unit then controls motor 212 to stop driving the moving roller 211 to rotate, so that the positioning cylinder 311 is initially positioned with the bolts on the grounding system housing 4. The maintenance personnel pull the drive plate 235, which drives the locking block 232 to move through the slide rod 233, thus canceling the locking block 232's limit on the ratchet 231. Then, the moving plate 223 is pulled back to its original position.

[0028] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A photovoltaic combiner box maintenance device, comprising a mobile frame (1), characterized in that: It also includes an adjustable clamping mechanism (2) and a bolt tightness detection mechanism (3); The movable frame (1) is equipped with an adjustable clamping mechanism (2) for adaptively adjusting the pair according to the width of the photovoltaic combiner box grounding system shell; The movable frame (1) is equipped with a bolt tightness detection mechanism (3) for detecting the tightness of bolts on the outer shell of the photovoltaic combiner box grounding system. The bolt tightness detection mechanism (3) includes a secondary positioning component (31), a secondary positioning drive component (32), and a detection marking component (33); the secondary positioning component (31) is used to position the detection marking component (33) according to the bolt position; the secondary positioning drive component (32) is used to drive the secondary positioning component (31); the detection marking component (33) is used to detect and mark the bolt; the movable frame (1), the adjustable clamping mechanism (2), and the detection marking component (33) are all connected to the secondary positioning component (31); the movable frame (1), the adjustable clamping mechanism (2), and the secondary positioning component (31) are all connected to the secondary positioning drive component (32).

2. The photovoltaic combiner box maintenance equipment according to claim 1, characterized in that, The secondary positioning component (31) includes a positioning cylinder (311); two positioning cylinders (311) are symmetrically distributed on the left and right sides, the positioning cylinder (311) on the left side is slidably connected to the moving frame (1); the positioning cylinder (311) on the right side is connected to the adjustable clamping mechanism (2); an arc-shaped positioning groove (312) is provided on the inner side of the positioning cylinder (311); the inner side of the positioning cylinder (311) is connected to the detection mark component (33); the outer side of the positioning cylinder (311) is connected to the secondary positioning drive component (32).

3. The photovoltaic combiner box maintenance equipment according to claim 2, characterized in that, The secondary positioning drive assembly (32) includes a second drive plate (321) and a push cylinder (322); the outer side of the positioning cylinder (311) is fixedly connected to the second drive plate (321); the second drive plate (321) is fixedly connected to the drive end of the push cylinder (322); the push cylinder (322) on the left side is fixedly connected to the moving frame (1); the push cylinder (322) on the right side is connected to the adjustable clamping mechanism (2).

4. The photovoltaic combiner box maintenance equipment according to claim 3, characterized in that, The detection marking assembly (33) includes a marking nozzle (331), a liquid supply pipe (332), and an ultrasonic probe (333); the marking nozzle (331) and the ultrasonic probe (333) are fixedly installed inside the positioning cylinder (311); the marking nozzle (331) is fixedly connected to and communicates with the liquid supply pipe (332).

5. The photovoltaic combiner box maintenance equipment according to claim 4, characterized in that, The adjustable clamping mechanism (2) includes a moving component (21), a clamping component (22), and a clamping limiting component (23); the moving component (21) is used to drive the moving frame (1) to move; the clamping component (22) is used to adjust the clamping according to the width of the grounding system shell (4); the clamping limiting component (23) is used to limit the clamping component (22); the moving frame (1) and the clamping component (22) are both connected to the moving component (21); the moving frame (1), the positioning cylinder (311), the push cylinder (322), and the clamping limiting component (23) are all connected to the clamping component (22); the moving frame (1) is connected to the clamping limiting component (23).

6. The photovoltaic combiner box maintenance equipment according to claim 5, characterized in that, The moving component (21) includes a moving roller (211), a motor (212), and a displacement sensor (213); multiple moving rollers (211) are rotatably connected to the lower end of the moving frame (1), and one of the moving rollers (211) is fixedly connected to the drive end of the motor (212); the motor (212) is fixedly connected to the moving frame (1); two displacement sensors (213) are symmetrically distributed; one displacement sensor (213) is fixedly connected to the inner wall of the right side of the moving frame (1); the other displacement sensor (213) is connected to the clamping component (22).

7. The photovoltaic combiner box maintenance equipment according to claim 6, characterized in that, The clamping assembly (22) includes an abutment limiting assembly, a limiting rod (222), and a moving plate (223); two sets of abutment limiting assemblies are symmetrically distributed left and right; one set of abutment limiting assemblies is connected to the moving frame (1); the other set of abutment limiting assemblies is connected to the moving plate (223); two limiting rods (222) are symmetrically distributed front and back; the right end of the limiting rod (222) is fixedly connected to the moving plate (223); the limiting rod (222) is slidably connected to the moving frame (1); the moving plate (223) is connected to the clamping limiting assembly (23); the left inner wall of the moving plate (223) is fixedly connected.

8. The photovoltaic combiner box maintenance equipment according to claim 7, characterized in that, The clamping and limiting assembly (23) includes a ratchet (231), a locking block (232), a slide bar (233), a spring (234), and a drive plate (235); the upper left end of the moving plate (223) is fixedly connected to the ratchet (231); the ratchet (231) is engaged with the locking block (232); the two slide bars (233) are symmetrically distributed front and back; the upper end of the locking block (232) is fixedly connected to the slide bar (233); a spring (234) is sleeved on the outside of the slide bar (233); the lower end of the spring (234) is fixedly connected to the locking block (232), and the upper end of the spring (234) is fixedly connected to the moving frame (1); the slide bar (233) is limited and slidably connected to the moving frame (1); the upper end of the slide bar (233) is fixedly connected to the drive plate (235).

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