An mc4 plug fastening device for a photovoltaic field station

Abstract

The utility model discloses a kind of MC4 plug fastening devices of photovoltaic station, belong to photovoltaic equipment operation and maintenance tool technical field, comprising: jaw part, the shape and size of jaw part are with the appearance of MC4 plug adaptation;Handle, handle is provided with two, the one end of each handle is fixedly connected with jaw part, and the jaw part on handle is all set inward;Handle is cross set, and rotationally connected at intersection;The surface of handle is provided with insulating layer;Pressure detection component, pressure detection component is close to jaw part setting;Through the fastening device of setting, the arc jaw mouth and the avoidance groove of adaptation with MC4 plug realize clamping, and stretchable handle is matched to reduce the demand of climbing operation, reduce safety risk and work time consumption;Handle insulating layer guarantees power safety, and pressure detection component can monitor and display clamping pressure in real time, and the fastening degree is accurately controlled to avoid too tight damage or too loose loose connection;Finally guarantee its connection reliability, reduce the power generation loss and fire hazard caused by poor contact.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic equipment operation and maintenance tools, specifically to an MC4 plug fastening device for photovoltaic power stations. Background Technology

[0002] In a photovoltaic power station, the photovoltaic module is the smallest and most important power generation unit. As a key connection component between photovoltaic modules, the reliability of the MC4 plug directly affects the overall power generation and operational safety of the power station.

[0003] MC4 plugs are characterized by numerous hidden dangers that are difficult to detect and resolve. Numerous faults can lead to power generation losses, and in severe cases, poor contact can cause overheating and burning, increasing the risk of grassland fires and exacerbating fire prevention pressures in photovoltaic areas. Furthermore, loose or intermittent connections in MC4 plugs constitute non-zero current faults, which cannot be effectively monitored through the monitoring system and require regular manual inspection.

[0004] Currently, troubleshooting and resolving MC4 plug issues consumes a significant amount of manpower and time, resulting in lengthy and inefficient troubleshooting processes. Traditional tightening operations require the use of ladders and other climbing tools, which constitutes work at height, increasing both workload and safety risks. Furthermore, it is impossible to determine whether the plug is properly tightened during the tightening process, which can easily lead to situations where the plug is overtightened, damaging it, or is too loose, leaving potential hazards. Utility Model Content

[0005] To address the problems of existing technologies, this utility model provides an MC4 plug fastening device for photovoltaic power stations, comprising: The jaws are adapted to the shape and size of the MC4 plug. The handle has two parts, and one end of each handle is fixedly connected to the jaws. The jaws on the handles are all oriented inward. The handles are arranged in a cross configuration, and the cross points are rotatably connected. The surface of the handle is provided with an insulating layer; A pressure detection assembly is disposed near the jaw portion, and the pressure detection device is fixedly connected to the surfaces of the two handles respectively. The pressure detection component is used for detecting and displaying the pressure between the jaws during the opening and closing of the handle.

[0006] Furthermore, the jaw portion is an arc-shaped plate structure, and a through clearance groove is provided on the jaw portion to avoid the housing of the MC4 plug during operation.

[0007] Furthermore, the handle is a telescopic structure, wherein the output end of the telescopic structure is fixedly connected to the lower end of the jaw portion.

[0008] Furthermore, the handle includes: a telescopic rod and a connecting part arranged in parallel; The output ends of the telescopic rods are all inclinedly connected to the connecting parts, and the connecting parts on the two telescopic rods are arranged crosswise, with the crosswise points being rotatably connected. The upper end of the connecting part is fixedly connected to the lower end of the jaw part on the same side; The pressure detection components are located below the intersection and are connected to the connecting parts respectively; The surface of each telescopic rod is provided with the insulating layer.

[0009] Furthermore, the pressure detection assembly includes: a slide rail, a mandrel, a pressure sensor, and a display screen; The slide rail has an arc-shaped structure, one end of the slide rail is fixedly connected to the surface of the connecting part on one side, and the outer contour of the mandrel matches the slide rail; One end of the mandrel is fixedly connected to the surface of the connecting part on the other side, and the other end of the mandrel is located inside the slide rail; The pressure sensor is disposed inside the slide rail, and an arc-shaped spring is disposed between the pressure sensor and the mandrel. Baffles are disposed at intervals along the edge of the groove of the slide rail. The display screen is connected to the surface of one of the telescopic rods, and the display screen is also connected to the pressure sensor signal.

[0010] Furthermore, the mandrel is provided with sliding grooves on both sides, and anti-detachment blocks are fixedly provided on the inner sidewalls of the corresponding sliding grooves, with the anti-detachment blocks located inside the sliding grooves.

[0011] The beneficial effects of this utility model are: The clamping device, with its arc-shaped jaws and clearance grooves that are compatible with the MC4 plug, enables gripping. The retractable handle reduces the need for working at heights, thereby lowering safety risks and time consumption. The handle's insulation layer ensures electrical safety, and the pressure detection component monitors and displays the clamping pressure in real time, precisely controlling the tightness to avoid damage from excessive tightness or poor connection from excessive looseness. Ultimately, this ensures reliable connection and reduces power loss and fire hazards caused by poor contact. Attached Figure Description

[0012] Figure 1 A schematic diagram of the jaw connection structure of the fastening device provided by this utility model; Figure 2 A schematic diagram of the side structure of the jaw portion of the fastening device provided by this utility model; Figure 3 A schematic diagram of the connection structure of the pressure detection component of the fastening device provided by this utility model; Figure 4A schematic diagram of the connecting plate connection structure of the fastening device provided by this utility model.

[0013] Figure label: In the diagram: 1 is the jaw, 2 is the telescopic rod, 3 is the connecting part, 4 is the slide rail, 5 is the mandrel, 6 is the pressure sensor, 7 is the display screen, 8 is the spring, 9 is the baffle, 10 is the slide groove, and 11 is the anti-detachment block. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-4 This utility model provides an MC4 plug fastening device for photovoltaic power stations, comprising: The jaw portion 1 has a shape and size that are adapted to the shape of the MC4 plug; the jaw portion is an arc-shaped plate structure that matches the outer periphery of the MC4 plug connection end, and the curvature of its inner wall is consistent with the curvature of the standard outer diameter of the MC4 plug, and its size is adapted to the commonly used specifications of the MC4 plug.

[0016] The handle has two parts, and each handle has a jaw portion 1 fixedly connected to one end. The jaw portions 1 on the handle are all set inward. One end of each handle is fixedly connected to the jaw portion by bolts. The two jaw portions are set inward relative to each other and are symmetrically distributed. The handles are arranged in a crisscross pattern and rotatably connected at the intersection; two handles are arranged in a crisscross pattern in the middle and rotatably connected at the intersection by a stainless steel pivot. The surface of the handle is provided with an insulating layer; A pressure detection component is disposed near the jaw portion 1, and the pressure detection component is fixedly connected to the surfaces of the two handles respectively; The pressure detection component is used to detect the clamping pressure of the jaws on the MC4 plug during the opening and closing of the handle in real time, and displays the detection data in real time.

[0017] In some embodiments, the jaw portion 1 is an arc-shaped plate structure, and the jaw portion 1 is provided with a through clearance groove for avoiding the housing of the MC4 plug during operation. The position of the clearance groove corresponds to the protruding structure of the MC4 plug housing.

[0018] In some embodiments, the handle is a telescopic structure, wherein the output end of the telescopic structure is fixedly connected to the lower end of the jaw portion 1; the output end of the telescopic rod is fixedly connected to the lower end of the jaw portion by welding, and a locking knob is provided on the telescopic structure to fix the telescopic length.

[0019] In some embodiments, the handle includes: a telescopic rod 2 and a connecting part 3 arranged in parallel; The output ends of the telescopic rods 2 are all inclinedly connected to the connecting parts 3, and the connecting parts 3 on the two telescopic rods 2 are arranged crosswise and rotatably connected at the intersection. The upper end of the connecting part 3 is fixedly connected to the lower end of the jaw part 1 on the same side; The pressure detection components are located below the intersection and are connected to the connecting part 3 respectively; The surface of the telescopic rod 2 is provided with the insulating layer.

[0020] The connecting part includes a first connecting plate and a second connecting plate. One end of the first connecting plate is fixedly connected to one end of the second connecting plate, and the other end of the first connecting plate is fixedly connected to the output end of the telescopic rod. The other end of the second connecting plate is connected to the lower end of the jaw part. The second connecting plates are crossed and rotatably connected at the middle position.

[0021] The telescopic rod has a hollow sleeve structure. Its output end and the lower end of the connecting part are connected at an angle by a fixed method. The connecting parts on the two telescopic rods are rotatably connected by the stainless steel rotating shaft at the intersection. The upper end of the connecting part is detachably connected to the lower end of the jaw part on the same side by bolts, and the angle between the connecting part and the telescopic rod is 30-60 degrees; The pressure detection components are fixedly connected to the opposite sides of the two connecting parts respectively; The entire outer surface of the telescopic pole is covered with the silicone rubber insulation layer, and the surface of the insulation layer is provided with anti-slip texture.

[0022] In some embodiments, the pressure detection assembly includes: a slide rail 4, a mandrel 5, a pressure sensor 6, and a display screen 7; The slide rail 4 has an arc-shaped structure, one end of the slide rail 4 is fixedly connected to the surface of the connecting part 3 on one side, and the outer contour of the core rod 5 matches the slide rail 4; One end of the core rod 5 is fixedly connected to the surface of the connecting part 3 on the other side, and the other end of the core rod 5 is located inside the slide rail 4; The pressure sensor 6 is disposed inside the slide rail 4, and an arc-shaped spring 8 is disposed between the pressure sensor 6 and the core rod 5. Baffles 9 are disposed at intervals along the edge of the groove of the slide rail 4. The display screen 7 is connected to the surface of one of the telescopic rods 2, and the display screen 7 is signal-connected to the pressure sensor 6.

[0023] The slide rail has an arc-shaped groove structure. One end of the slide rail is fixedly connected to the surface of the connecting part on one side by screws, and the groove of the slide rail faces the connecting part on the other side. The outline of the mandrel matches the groove of the slide rail. One end of the mandrel is fixedly connected to the surface of the connecting part on the other side by a screw, and the other end is movably embedded in the groove of the slide rail. The pressure sensor is fixedly mounted at the end of the slide rail groove; An arc-shaped spring is provided between the pressure sensor and the core rod, with the two ends of the spring abutting against the detection end of the pressure sensor and the embedding end of the core rod, respectively. Baffles are spaced apart along the edge of the slide rail groove, and the baffles are perpendicular to the plane of the slide rail groove to limit the lateral displacement of the spring.

[0024] In some embodiments, grooves 10 are provided on both sides of the mandrel 5, and anti-detachment blocks 11 are fixedly provided on the inner sidewall of the corresponding grooves 10, with the anti-detachment blocks 11 located inside the grooves 10.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fastening device for an MC4 plug in a photovoltaic power station, characterized in that, include: The jaws are adapted to the shape and size of the MC4 plug. The handle has two parts, and one end of each handle is fixedly connected to the jaws. The jaws on the handles are all oriented inward. The handles are arranged in a cross configuration, and the cross points are rotatably connected. The surface of the handle is provided with an insulating layer; A pressure detection assembly is disposed near the jaw portion and is fixedly connected to the surfaces of the two handles respectively; The pressure detection component is used for detecting and displaying the pressure between the jaws during the opening and closing of the handle.

2. The MC4 plug fastening device for photovoltaic power stations according to claim 1, characterized in that, The jaw section has an arc-shaped plate structure, and a through clearance groove is provided on the jaw section to avoid the housing of the MC4 plug during operation.

3. The MC4 plug fastening device for photovoltaic power stations according to claim 1, characterized in that, The handle is a telescopic structure, wherein the output end of the telescopic structure is fixedly connected to the lower end of the jaw portion.

4. The MC4 plug fastening device for photovoltaic power stations according to claim 3, characterized in that, The handle includes: a telescopic rod and a connecting part arranged in parallel; The output ends of the telescopic rods are all inclinedly connected to the connecting parts, and the connecting parts on the two telescopic rods are arranged crosswise, with the crosswise points being rotatably connected. The upper end of the connecting part is fixedly connected to the lower end of the jaw part on the same side; The pressure detection components are located below the intersection and are connected to the connecting parts respectively; The surface of each telescopic rod is provided with the insulating layer.

5. The MC4 plug fastening device for photovoltaic power stations according to claim 4, characterized in that, The pressure detection assembly includes: a slide rail, a mandrel, a pressure sensor, and a display screen; The slide rail has an arc-shaped structure, one end of the slide rail is fixedly connected to the surface of the connecting part on one side, and the outer contour of the mandrel matches the slide rail; One end of the mandrel is fixedly connected to the surface of the connecting part on the other side, and the other end of the mandrel is located inside the slide rail; The pressure sensor is disposed inside the slide rail, and an arc-shaped spring is disposed between the pressure sensor and the mandrel. Baffles are disposed at intervals along the edge of the groove of the slide rail. The display screen is connected to the surface of one of the telescopic rods, and the display screen is also connected to the pressure sensor signal.

6. The MC4 plug fastening device for photovoltaic power stations according to claim 5, characterized in that, The mandrel has grooves on both sides, and anti-detachment blocks are fixedly installed on the inner sidewalls of the corresponding grooves, with the anti-detachment blocks located inside the grooves.

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