Outdoor photovoltaic low-voltage cabinet

Abstract

The utility model discloses an outdoor photovoltaic low-voltage cabinet, which comprises a cabinet body, the lower end of the cabinet body is arranged on a base, the upper end of the cabinet body is provided with a top cover, the top cover comprises a top flat plate and a mask plate, the top flat plate is provided with a mounting port, an exhaust fan is arranged in the mounting port, the upper end of the base is covered with a bottom plate, and a plurality of upright posts are arranged on the periphery of the mask plate. The upper ends of the stand columns are provided with bells respectively, the middle of the protruding line is fixedly connected with a center shaft, the center shaft is rotatably sleeved with a rotating pipe, the rotating pipe is driven by a working shaft of the exhaust fan to rotate, the rotating pipe is fixedly connected with a swing rod, the lower end of the center shaft is grounded through a grounding wire, and the center shaft is made of conductive materials. The outdoor photovoltaic low-voltage cabinet provided by the utility model has the advantages of good heat dissipation effect, wild animal influence prevention, lightning protection and flood lamp prevention. All the functions are matched with one another, and energy consumption is low. And the device is suitable for being installed and used outdoors, especially used in a large-scale photovoltaic power station, and can adapt to various different outdoor environments.

Description

Technical Field

[0001] The utility model belongs to the technical field of low-voltage control cabinets, and particularly relates to a low-voltage cabinet for outdoor photovoltaic use. Background Art

[0002] The rated current of the low-voltage power distribution cabinet is 50Hz alternating current, and the rated voltage is 380v. The power distribution system is used as power, lighting and power conversion and control of power distribution. This product has the characteristics of strong breaking capacity, good dynamic and thermal stability, flexible electrical scheme, convenient combination, strong series and practicability, and novel structure. The low-voltage power distribution cabinet for photovoltaic use is directly installed outdoors due to the influence of the use environment, and is easily affected by wild animals. For example, birds are easy to build nests on the top of the power distribution cabinet, wild animals are easy to damage the box body and gnaw the lines, and the high temperature exposure outdoors is easy to cause the temperature in the box to be too high. Therefore, it is necessary to improve the existing low-voltage power distribution cabinet. Content of the Utility Model

[0003] In order to solve the above technical problems, the technical scheme adopted by the utility model is: a low-voltage cabinet for outdoor photovoltaic use, including a cabinet body, the lower end of the cabinet body is installed on a base, and a top cover is installed at the upper end of the cabinet body. The top cover includes a top flat plate and a mask plate covering the top flat plate. A heat dissipation space is formed between the mask plate and the top flat plate. The periphery of the top flat plate is fixedly connected to the cabinet body. The middle part of the mask plate arches upward to form a raised line. The raised line divides the mask plate into two symmetrically arranged inclined parts. The periphery of the mask plate is bent downward to form a surrounding plate. The surrounding plate is bent horizontally inward to form a heat dissipation part. The inner side of the heat dissipation part is fixedly connected to the top flat plate. A number of heat dissipation holes with openings facing downward are provided on the heat dissipation part. The heat dissipation holes are respectively communicated with the heat dissipation space. An installation opening is provided on the top flat plate, and an exhaust fan is installed in the installation opening. The upper end of the base is covered with a bottom plate. A number of air vents and a number of wire routing openings are provided on the bottom plate. A number of air holes are provided around the base. A number of columns are installed on the periphery of the mask plate in a swingable manner. Bells are respectively installed at the upper ends of the columns. The middle part of the raised line is fixedly connected to a central shaft. A rotating tube is rotatably sleeved on the central shaft. The lower end of the rotating tube extends into the heat dissipation space and is driven to rotate by the working shaft of the exhaust fan. A horizontally arranged swing rod is fixedly connected to the part of the rotating tube outside the heat dissipation space. The rotation of the rotating tube drives the swing rod to sequentially knock the columns. The upper end of the central shaft is higher than the height of the bell. The lower end of the central shaft is grounded through a grounding wire. The central shaft is made of a conductive material.

[0004] As a preference of the above technical scheme, the lower ends of the columns are connected to the mask plate through springs.

[0005] As a preference of the above technical scheme, the exhaust fan is a low-power exhaust fan, and the exhaust fan is powered by the power supply in the control cabinet.

[0006] As a preference of the above technical solution, the lower end of the central axis is fixedly connected to the top flat plate, the lower end of the rotating tube is fixedly connected with a large gear, the large gear meshes with a small gear, and the small gear is fixedly connected to the output shaft of the exhaust fan.

[0007] As a preference of the above technical solution, the number of the bases is multiple, the multiple bases are arranged in sequence from bottom to top, adjacent bases are fixedly connected by a plurality of bolts, the bottom plate covers the upper end of the uppermost base, and the lower end of the box body is detachably connected to the upper end of the uppermost base.

[0008] As a preference of the above technical solution, an installation opening communicating with the inside of the base is provided on the front surface of the base, a footrest is installed in the installation opening through a drawer slide rail, a cover plate is fixedly connected to the footrest, and a handle is fixedly connected to the cover plate.

[0009] The beneficial effects of the present utility model are as follows: The low-voltage cabinet for outdoor photovoltaic use of the present utility model has functions of good heat dissipation effect, preventing the influence of wild animals, lightning protection, flood prevention, etc. The functions cooperate with each other and have less energy consumption. It is suitable for outdoor installation and use, especially in large photovoltaic power stations, and can adapt to various different outdoor environments. Description of the Drawings

[0010] Figure 1 is a structural schematic diagram of the present utility model;

[0011] Figure 2 is a cross-sectional structural schematic diagram of the present utility model. Detailed Embodiment

[0012] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0013] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0014] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0015] As Figure 1-2 shown, a low-voltage cabinet for outdoor photovoltaic use includes a cabinet body 1. The lower end of the cabinet body 1 is installed on a base 2, and a top cover 3 is installed at the upper end of the cabinet body 1. The top cover 3 includes a top flat plate 4 and a mask plate 5 covering the top flat plate 4. A heat dissipation space 6 is formed between the mask plate 5 and the top flat plate 4. The periphery of the top flat plate 4 is fixedly connected to the cabinet body 1. The middle part of the mask plate 5 arches upward to form a raised line 7. The raised line 7 divides the mask plate 5 into two symmetrically arranged inclined parts 8. The periphery of the mask plate 5 is bent downward to form a surrounding plate 9. The surrounding plate 9 is horizontally bent inward to form a heat dissipation part 10. The inner side of the heat dissipation part 10 is fixedly connected to the top flat plate 4. A plurality of heat dissipation holes 11 with openings facing downward are provided on the heat dissipation part 10. The heat dissipation holes 11 are respectively communicated with the heat dissipation space 6. An installation opening 12 is provided on the top flat plate 4, and an exhaust fan 13 is installed in the installation opening 12. The upper end of the base 2 is covered with a bottom plate 14. A plurality of air vents and a plurality of wire routing openings are provided on the bottom plate 14. A plurality of air holes 15 are provided around the base 2. A plurality of columns 16 are installed on the periphery of the mask plate 5 in a swingable manner. Bells 17 are respectively installed at the upper ends of the columns 16. The middle part of the raised line 7 is fixedly connected with a central shaft 18. A rotating tube 19 is rotatably sleeved on the central shaft 18. The lower end of the rotating tube 19 extends into the heat dissipation space 6 and is driven to rotate by the working shaft of the exhaust fan 13. A horizontally arranged swing rod 20 is fixedly connected to the part of the rotating tube 19 outside the heat dissipation space 6. The rotation of the rotating tube 19 drives the swing rod 20 to sequentially strike the columns 16. The upper end of the central shaft 18 is higher than the height of the bell 17. The lower end of the central shaft 18 is grounded through a grounding wire. The central shaft 18 is made of a conductive material. In addition to improving the heat dissipation effect inside the cabinet body 1, the exhaust fan 13 can also drive the rotating tube 19 to rotate, use the swing rod 20 to strike the columns 16, and drive the bell 17 to make a sound, which is used to drive away animals such as birds. The continuously rotating swing rod 20 can prevent birds from staying on the mask plate 5 and avoid birds building nests on the mask plate 5. The air enters through the air holes 15 around the base 2. Compared with the traditional method of opening air holes on the cabinet body 1, the inside of the cabinet body 1 is not easily affected by rainwater. At the same time, flying insects and the like are not easily directly introduced into the inside of the cabinet body 1 to contact the electrical components. The central shaft 18 also has the effect of a lightning rod. The bell can use a conventional bell and can make a sound by means of physical vibration. The sound is pleasant and does not form strong noise.

[0016] Further, the lower end of the column 16 is connected to the mask plate 5 through a spring 21. The spring 21 enables the column 16 to shake after being struck by the swing rod 20, thereby driving the bell 17 to make a sound.

[0017] Further, the exhaust fan 13 is a low-power exhaust fan 13, and the exhaust fan 13 is powered by the power supply in the control cabinet. The low-power exhaust fan 13 has low power consumption.

[0018] Further, the lower end of the central shaft 18 is fixedly connected to the top flat plate 4, the lower end of the rotating tube 19 is fixedly connected with a large gear 22, the large gear 22 meshes with a small gear 23, and the small gear 23 is fixedly connected to the output shaft of the exhaust fan 13. The cooperation of the large gear 22 and the small gear 23 can reduce the rotation speed of the rotating tube 19.

[0019] Further, the number of the bases 2 is multiple, and the multiple bases 2 are arranged in sequence from bottom to top. Adjacent bases 2 are fixedly connected by a plurality of bolts. The bottom plate 14 covers the upper end of the uppermost base 2, and the lower end of the cabinet body is detachably connected to the upper end of the uppermost base 2. The number of the bases 2 is determined according to the use site of the low-voltage control cabinet. The multiple bases 2 can raise the height of the cabinet body 1, avoid the influence of floods, animals, etc. on the low-voltage control cabinet. At the same time, the space below the cabinet body 1 increases, improving the heat dissipation effect and reducing the influence of the ground temperature.

[0020] Further, an installation opening 12 communicating with the inside of the base 2 is provided on the front surface of the base 2. A footrest 24 is installed in the installation opening 12 through a drawer slide rail 27. A cover plate 25 is fixedly connected to the footrest 24, and a handle 26 is fixedly connected to the cover plate 25. The footrest 24 can be pulled out a certain length through the handle. Different lengths of the footrest 24 pulled out form steps, which is convenient for maintenance personnel to increase the height to enter the control cabinet for relevant operations. The footrest 24 can also be connected to the base 2 through a lock to improve safety. When not in use, the footrest 24 is pushed back into the inside of the base 2 to prevent people or animals from directly contacting the cabinet body 1.

[0021] It is worth mentioning that the technical features such as the exhaust fan and the bell involved in the patent application of the present utility model should be regarded as the prior art. For the specific structures, working principles, and possible control methods and spatial layout methods of these technical features, the conventional selections in the art can be adopted, and they should not be regarded as the inventive points of the patent of the present utility model. The patent of the present utility model will not be further specifically elaborated.

[0022] The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present utility model without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art in this technical field based on the concept of the present utility model through logical analysis, reasoning, or limited experiments on the basis of the prior art should fall within the protection scope determined by the claims.

Claims

1. Low-voltage switchgear for outdoor photovoltaic applications, characterized in that, It includes a cabinet body. The lower end of the cabinet body is installed on a base, and a top cover is installed at the upper end of the cabinet body. The top cover includes a top flat plate and a mask plate covering the top flat plate. A heat dissipation space is formed between the mask plate and the top flat plate. The periphery of the top flat plate is fixedly connected to the cabinet body. The middle part of the mask plate arches upward to form a raised line, and the raised line divides the mask plate into two symmetrically arranged inclined parts. The periphery of the mask plate is bent downward to form a surrounding plate, and the surrounding plate is horizontally bent inward to form a heat dissipation part. The inner side of the heat dissipation part is fixedly connected to the top flat plate. A number of heat dissipation holes with openings facing downward are provided on the heat dissipation part, and the heat dissipation holes are respectively communicated with the heat dissipation space. An installation opening is provided on the top flat plate, and an exhaust fan is installed in the installation opening. The upper end of the base is covered with a bottom plate. A number of air vents and a number of wire routing openings are provided on the bottom plate. A number of air holes are provided around the base. A number of upright columns are installed on the periphery of the mask plate in a swingable manner, and bells are respectively installed at the upper ends of the upright columns. The middle part of the raised line is fixedly connected to a central shaft, and a rotating tube is rotatably sleeved on the central shaft. The lower end of the rotating tube extends into the heat dissipation space and is driven to rotate by the working shaft of the exhaust fan. A horizontally arranged swing rod is fixedly connected to the part of the rotating tube outside the heat dissipation space. The rotation of the rotating tube drives the swing rod to sequentially strike the upright columns. The upper end of the central shaft is higher than the height of the bell, and the lower end of the central shaft is grounded through a grounding wire. The central shaft is made of a conductive material.

2. The low-voltage cabinet for outdoor photovoltaic use according to claim 1, characterized in that, The lower end of the upright column is connected to the mask plate through a spring.

3. The low-voltage switchgear for outdoor photovoltaic applications according to claim 1, characterized in that, The exhaust fan is a low-power exhaust fan, and the exhaust fan is powered by a power supply in a control cabinet.

4. The low-voltage switchgear for outdoor photovoltaic use according to claim 3, wherein The lower end of the central shaft is fixedly connected to the top flat plate. A large gear is fixedly connected to the lower end of the rotating tube, and a small gear meshes with the large gear. The small gear is fixedly connected to the output shaft of the exhaust fan.

5. The low-voltage switchgear for outdoor photovoltaic applications according to claim 1, wherein, The number of the bases is multiple, and the multiple bases are arranged in sequence from bottom to top. Adjacent bases are fixedly connected through a number of bolts. The bottom plate covers the upper end of the topmost base, and the lower end of the box body is detachably connected to the upper end of the topmost base.

6. The low-voltage switchgear for outdoor photovoltaic use according to claim 5, characterized in that, An installation opening communicating with the inside of the base is provided on the front surface of the base. A footrest is installed in the installation opening through a drawer slide rail. A cover plate is fixedly connected to the footrest, and a handle is fixedly connected to the cover plate.

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