Distributed photovoltaic protection switch

Abstract

The utility model discloses a distributed photovoltaic protection switch, which belongs to the field of photovoltaic protection switches and comprises a switch body, a plurality of wiring ports arranged at one end of the switch body and distributed in a linear array and mounting ports symmetrically arranged at one end of the mounting position of the switch body. A rotating shaft is rotationally installed in the installation opening, the rotating shaft is sleeved with a supporting rod, and a clamping plate is fixedly installed at the end, away from the rotating shaft, of the supporting rod. The distributed photovoltaic protection switch is simple in structure and convenient to use, through the arrangement of the limiting blocks and the clamping plates and the rotation design of the clamping plates, the switch bodies can be rapidly installed in an electric box, the installation time is saved, the working efficiency is improved, meanwhile, two adjacent switch bodies can be installed in an attached mode, waste of space is avoided, and the use is convenient. And by adjusting the position of the limiting block, the supporting rod and the wire harness hoop can be flexibly adjusted according to the position of the wire harness, so that the wiring of the wire harness is more orderly and normative.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic protection switches, in particular to a distributed photovoltaic protection switch. Background Art

[0002] Distributed photovoltaic protection switches are protection devices used in photovoltaic power generation systems to ensure safe and reliable operation of the system under various electrical fault conditions. Such switches are usually used in conjunction with photovoltaic inverters or microinverters to monitor and control the current, voltage and power of photovoltaic battery groups or battery arrays.

[0003] Upon investigation, it was found that the Chinese utility model patent with publication number CN218975362U discloses a switch that can be used for low-voltage distributed photovoltaic protection. The power-off protection switch is hung in the target switch box, and then the lock is unlocked, and then the buckle frame is pressed to make the rear part of the buckle frame tilt up and buckle in the switch box, and then the lock is closed, and the buckle frame is locked with the lock to maintain the installation result; however, the width of the buckle frame used for fixing the switch is larger than the width of the switch. Due to the limited space inside the electrical box, adjacent switches cannot be installed closely, resulting in a waste of space.

[0004] Therefore, the utility model provides a distributed photovoltaic protection switch to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a distributed photovoltaic protection switch, aiming to solve the problems of space waste after installation of the existing switch proposed in the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a distributed photovoltaic protection switch, comprising a switch body, a plurality of wiring ports distributed in a linear array at one end of the switch body, and an installation port symmetrically opened at one end of the switch body at the installation position;

[0009] A rotating shaft is rotatably installed in the installation opening, a support rod is mounted on the rotating shaft, a clamping plate is fixedly mounted on one end of the support rod away from the rotating shaft, and torsion springs are mounted on both ends of the rotating shaft, and the two ends of the torsion spring are fixedly connected to the rotating shaft and the installation opening respectively.

[0010] Preferably, a corner of the switch body at the installation position is provided with a bending portion adapted to the clamping plate.

[0011] Preferably, the switch body is provided with an inner groove at one end of the wiring port, a cover plate is fixedly mounted on the open end of the inner groove, a through opening is provided on the cover plate, a plurality of limit grooves symmetrically distributed in a linear array and connected to the through opening are provided on one end of the cover plate located in the inner groove, a plurality of limit blocks are arranged in the limit grooves and the through opening, a support rod is fixedly mounted on the end of the limit block away from the inner groove, and a wiring harness clamp is fixedly mounted on the end of the support rod away from the cover plate.

[0012] Preferably, a supporting mechanism adapted to the limiting block is provided in the inner groove.

[0013] Preferably, the supporting mechanism comprises a guide frame slidably mounted in the inner groove and a spring telescopic rod fixedly mounted between the guide frame and the limiting block.

[0014] Preferably, a plurality of evenly distributed convex hulls are arranged in the wiring harness clamp.

[0015] (III) Beneficial effects

[0016] The distributed photovoltaic protection switch has a simple structure and is easy to use. By setting a limit block and a card plate and a rotating design of the card plate, the switch body can be quickly installed inside the electrical box, saving installation time and improving work efficiency. At the same time, two adjacent switch bodies can be installed in a close fit to avoid wasting space. By adjusting the position of the limit block, the support rod and the wire harness clamp can be flexibly adjusted according to the position of the wire harness, making the wiring of the wire harness more neat and standardized. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a distributed photovoltaic protection switch;

[0018] Figure 2 It is a schematic diagram of the overall multi-angle structure of the distributed photovoltaic protection switch;

[0019] Figure 3 It is a schematic diagram of the overall partial cross-sectional structure of a distributed photovoltaic protection switch;

[0020] Figure 4 for Figure 3 Schematic diagram of the structure at point A.

[0021] In the figure: 1. switch body; 11. wiring port; 12. mounting port; 13. bending portion; 14. inner groove; 2. rotating shaft; 21. support rod; 22. clamping plate; 23. torsion spring; 3. cover plate; 31. through port; 32. limiting slot; 33. limiting block; 34. supporting mechanism; 341. guide frame; 342. spring telescopic rod; 4. connecting rod; 41. wiring harness clamp. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] The utility model provides a distributed photovoltaic protection switch, such as Figure 1-4 As shown, the photovoltaic protection switch comprises a switch body 1, a plurality of wiring ports 11 arranged at one end of the switch body 1 and distributed in a linear array, and an installation port 12 symmetrically arranged at one end of the switch body 1 at the installation position;

[0025] A rotating shaft 2 is rotatably installed in the installation opening 12, a support rod 21 is mounted on the rotating shaft 2, a clamping plate 22 is fixedly mounted on one end of the support rod 21 away from the rotating shaft 2, and torsion springs 23 are mounted on both ends of the rotating shaft 2, and the two ends of the torsion spring 23 are fixedly connected to the rotating shaft 2 and the installation opening 12 respectively.

[0026] When in use, the switch body 1 can be engaged inside the electrical box through the installation position. Before engaging, the clamping plate 22 can be pulled to rotate it through the support rod 21 and the rotating shaft 2, so that the clamping plate 22 is rotated out of the installation position, and the switch body 1 can be quickly installed. After the installation is completed, the clamping plate 22 can be loosened and reversed under the action of the torsion spring 23, ensuring that the switch body 1 can be fixed, and the two adjacent switch bodies 1 can be fitted together during installation, avoiding waste of space.

[0027] Furthermore, a corner of the switch body 1 at the installation position is provided with a bending portion 13 adapted to the clamping plate 22; the clamping plate 22 can rotate along the bending portion 13 when rotating to avoid the phenomenon of jamming.

[0028] Example 2

[0029] Different from Example 1, an inner groove 14 is provided at one end of the switch body 1 located at the wiring port 11, a cover plate 3 is fixedly installed at the open end of the inner groove 14, a through opening 31 is provided on the cover plate 3, and a plurality of limit grooves 32 distributed in a linear array and connected to the through opening 31 are symmetrically provided at one end of the cover plate 3 located in the inner groove 14, a plurality of limit blocks 33 are arranged in the limit grooves 32 and the through opening 31, a connecting rod 4 is fixedly installed at one end of the limit block 33 away from the inner groove 14, a wiring harness clamp 41 is fixedly installed at one end of the connecting rod 4 away from the cover plate 3, and a plurality of evenly distributed convex hulls are arranged in the wiring harness clamp 41.

[0030] When in use, after the wiring harness is connected to the wiring port 11, the limit block 33 can be adjusted according to the position of the wiring harness. During adjustment, the connecting rod 4 can be moved so that the limit block 33 moves out of the limit groove 32, and the connecting rod 4 can be pulled to slide along the through opening 31. After the adjustment is completed, the connecting rod 4 can be pulled so that the limit block 33 enters the limit groove 32 at the corresponding position to achieve fixation, and then the wiring harness can be clamped in the wiring harness clamp 41 to achieve wiring of the wiring harness.

[0031] Furthermore, a support mechanism 34 adapted to the limit block 33 is provided in the inner groove 14, and the support mechanism 34 includes a guide frame 341 slidably installed in the inner groove 14 and a spring telescopic rod 342 fixedly installed between the guide frame 341 and the limit block 33; the guide frame 341 and the limit block 33 are connected by the spring telescopic rod 342, and the limit block 33 can be moved out of the limit groove 32. At this time, the spring telescopic rod 342 can be compressed, and when the limit block 33 is placed in the new limit groove 32, the limit block 33 can be tightened in the limit groove 32 under the action of the spring telescopic rod 342, ensuring that the connecting rod 4 and the wiring harness clamp 41 can be used stably.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A distributed photovoltaic protection switch, comprising a switch body (1), a plurality of wiring ports (11) arranged at one end of the switch body (1) and distributed in a linear array, and an installation port (12) symmetrically arranged at one end of the switch body (1) at an installation position; Features: A rotating shaft (2) is rotatably mounted in the mounting opening (12), a support rod (21) is mounted on the rotating shaft (2), a clamping plate (22) is fixedly mounted on one end of the support rod (21) away from the rotating shaft (2), and torsion springs (23) are mounted on both ends of the rotating shaft (2), and the two ends of the torsion spring (23) are respectively fixedly connected to the rotating shaft (2) and the mounting opening (12).

2. The distributed photovoltaic protection switch according to claim 1, characterized in that: A bent portion (13) adapted to the clamping plate (22) is provided at a corner of the switch body (1) at the installation position.

3. The distributed photovoltaic protection switch according to claim 1, characterized in that: The switch body (1) is provided with an inner groove (14) at one end of the wiring port (11); a cover plate (3) is fixedly mounted at the open end of the inner groove (14); a through opening (31) is provided on the cover plate (3); a plurality of limit grooves (32) are symmetrically arranged in a linear array and communicated with the through opening (31) at one end of the cover plate (3) located in the inner groove (14); a plurality of limit blocks (33) are arranged in the limit grooves (32) and the through opening (31); a connecting rod (4) is fixedly mounted at one end of the limit block (33) away from the inner groove (14); and a wiring harness clamp (41) is fixedly mounted at one end of the connecting rod (4) away from the cover plate (3).

4. The distributed photovoltaic protection switch according to claim 3 is characterized in that: A supporting mechanism (34) adapted to the limiting block (33) is arranged in the inner groove (14).

5. The distributed photovoltaic protection switch according to claim 4, characterized in that: The support mechanism (34) comprises a guide frame (341) slidably mounted in the inner groove (14) and a spring telescopic rod (342) fixedly mounted between the guide frame (341) and the limit block (33).

6. The distributed photovoltaic protection switch according to claim 3, characterized in that: A plurality of evenly distributed convex hulls are arranged inside the wire harness clamp (41).

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