Photovoltaic energy storage cable branch box with fault alarm function

Abstract

The invention belongs to the technical field of cable branch boxes, and discloses a photovoltaic energy storage cable branch box with a fault alarm function, and the cable branch box comprises a branch box body, through grooves are formed in the two sides of the upper end of the branch box body in a penetrating manner, and ventilation plate assemblies are arranged on the two sides of the upper end of the branch box body through the through grooves. The central position of the bottom end of the branch box body is fixedly sleeved with a pipe barrel in a penetrating mode, a fan set is arranged in the middle of the inner side of the pipe barrel, box doors are symmetrically and movably installed on the two sides of an opening in the front end of the branch box body, and auxiliary assemblies are arranged on the inner surfaces of one sides of the upper ends of the two box doors; through the through grooves and the breathable plate assemblies arranged on the two sides of the upper end of the branch box body, a pipe barrel and a fan set arranged at the bottom end of the branch box body are matched, so that the heat dissipation effect on the interior of the branch box body can be effectively improved under the action of effectively accelerating air circulation inside and outside the branch box body; therefore, the problem that the internal temperature of the branch box body is too high in outdoor sunny days is prevented.

Description

Technical Field

[0001] The present application relates to the technical field of cable branch boxes, and more specifically, to a photovoltaic energy storage cable branch box with a fault alarm function. Background Art

[0002] With the continuous development of the cabling process of distribution networks, when independent loads with small capacity are distributed more concentratedly, cable branch boxes can be used to connect multiple cable branches. Because the branch box cannot directly operate each line and is only used as a cable branch, the main function of the cable branch box is to branch or transfer the cables. The cable branch box is generally divided into power cable branch box, lighting cable branch box and metering box, which is the end-stage equipment of the distribution system.

[0003] At present, photovoltaic energy storage cable branch boxes are generally used outdoors, and once a problem occurs, emergency repairs must be carried out in time regardless of whether it is sunny or rainy. However, the existing cable branch boxes have a relatively simple structure, which can easily lead to rainwater splashing into the branch box during maintenance on rainy days, and easily cause the internal temperature of the branch box to be too high on sunny days, thereby affecting the overall service life.

[0004] In order to solve the above problems, the present application provides a photovoltaic energy storage cable branch box with a fault alarm function. Summary of the invention

[0005] The photovoltaic energy storage cable branch box with fault alarm function provided in this application adopts the following technical solution: A photovoltaic energy storage cable branch box with a fault alarm function comprises a branch box body, both sides of the upper end of the branch box body are provided with through grooves, and both sides of the upper end of the branch box body are provided with air-permeable plate assemblies through the through grooves, a tube is fixedly sleeved through the center position of the bottom end of the branch box body, a fan group is provided in the middle of the inner side of the tube, box doors are symmetrically and movably installed on both sides of the front end opening of the branch box body, and auxiliary components are provided on the inner surfaces of one side of the upper ends of the two box doors, a top plate is fixedly connected to the top of the branch box body, a pull-out groove is provided at the front end of the top plate, a pull-out cover plate is horizontally slidably sleeved inside the pull-out groove, and the pull-out cover plate is flush with the front end surface of the top plate.

[0006] Through the above technical solution, the pull-out groove realizes the built-in accommodation function of the pull-out cover plate.

[0007] Furthermore, a sealing strip is fixedly sleeved on the inner wall of the front end of the drawer groove, and the inner side wall of the sealing strip is in sliding contact with the outer surface of the drawer cover plate.

[0008] Through the above technical solution, the sealing strip ensures the sealing effect between the drawer cover plate and the drawer groove.

[0009] Furthermore, a handle ring is fixedly installed at the middle position of the front end surface of the pull-out cover plate, and supporting legs are fixedly installed at the four corners of the bottom of the branch box body.

[0010] Through the above technical solution, the handle ring facilitates the horizontal pulling operation of the pull-out cover plate.

[0011] Furthermore, the air-permeable plate assembly includes a center plate, both ends of which are fixedly connected with heat dissipation mesh plates, and the center plate and the two heat dissipation mesh plates are movably clamped on the inner wall of the through groove, and a shaft rod is connected to the lower side of the middle part of the center plate in a through-type rotating sleeve, and both ends of the shaft rod are fixedly connected with limited rotation arms, and the two limited rotation arms are respectively abutted against the inner and outer side walls of the side ends of the branch box body.

[0012] Through the above technical solution, the two limiting rotating arms realize the movable positioning of the center plate and the heat dissipation mesh plate.

[0013] Furthermore, the outer surface of the shaft rod is in sliding contact with a rubber damping sheet, and the rubber damping sheet is fixedly installed at an inner cavity position of the center plate.

[0014] Through the above technical solution, the rubber damping sheet can prevent the shaft rod from rotating randomly, thereby ensuring the stability of the position of the limiting rotating arm.

[0015] Furthermore, a protective frame is fixedly installed on the inner wall of the top end of the tube, a dustproof net is provided at the bottom of the tube, and the outer periphery of the dustproof net is fixedly installed on the bottom of the tube by screws.

[0016] Through the above technical solution, the protective frame realizes the safety protection function of the upper side of the fan group.

[0017] Furthermore, an air guide baffle is provided below the tube, and fixing rods are fixedly connected to the four corners of the top of the air guide baffle. The four fixing rods are fixedly installed on the bottom of the branch box, and the four fixing rods are distributed on the outside of the tube.

[0018] Furthermore, the auxiliary component includes a connecting block fixedly mounted on the inner surface of the box door, a threaded rod is threadedly connected to one side of the connecting block, and a rotating wheel is fixedly mounted on the bottom of the threaded rod.

[0019] Through the above technical solution, the connecting block can realize the supporting function of the structure above it.

[0020] Furthermore, both sides of the bottom of the front end of the pull-out cover plate are provided with clamping holes, and the two clamping holes are respectively plugged and matched with the top ends of the two threaded rods.

[0021] Through the above technical solution, the clamping hole realizes the plug-in cooperation with the threaded rod.

[0022] Furthermore, a monitoring probe and an alarm are fixedly installed on one side of the inner wall at the top of the branch box, and a controller is fixedly installed on the upper end of the inner wall on one side of the branch box. A smoke sensor is provided inside the upper side of the tube, and the smoke sensor is located between the fan group and the protective frame, and a supporting cross arm is fixedly installed at the connection between the outer surface of the smoke sensor and the inner wall on one side of the tube.

[0023] Through the above technical solution, the smoke sensor can realize the fire fault monitoring and alarm function inside the branch box.

[0024] In summary, this application includes the following beneficial technical effects: (1) The present application provides through grooves and air permeable plate assemblies on both sides of the upper end of the branch box, so that the tube and fan group provided at the bottom end of the branch box can effectively accelerate the internal and external gas circulation of the branch box, thereby effectively improving the heat dissipation effect inside the branch box, thereby preventing the branch box from having an excessively high internal temperature on sunny days outdoors. In addition, the two sets of air permeable plate assemblies cooperate with each other in the middle plate, heat dissipation mesh plate, shaft rod, and limit rotating arm to ensure gas circulation while effectively filtering out dust particles in the gas and facilitate the cleaning operation of the filtered dust particles.

[0025] (2) The present application provides a top plate, a pull-out groove, a pull-out cover plate, and a sealing strip on the top of the branch box, so that the box door and the auxiliary components thereon provided at the front end of the branch box can be used together to achieve effective auxiliary support and positioning effect for the pulled-out and extended pull-out cover plate when the box door is open, thereby achieving effective shielding and protection of the front side of the branch box, and being beneficial to preventing rainwater from splashing into the interior of the branch box during inspection and maintenance on rainy days, and improving the stability of the photovoltaic energy storage cable branch box.

[0026] (3) The present application realizes the monitoring and early warning function of the inside of the branch box by installing a monitoring probe and an alarm inside the branch box, which cooperates with the smoke sensor and the supporting cross arm installed inside the tube and can be electrically connected to the controller. It can also adapt to the accelerated flow direction of the gas under the heat dissipation work inside the branch box to achieve the smoke detection effect inside it, thereby achieving the effective short-circuit fire fault monitoring and alarm function inside the photovoltaic energy storage cable branch box. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is one of the overall structural diagrams of this application; Figure 2 This is the second schematic diagram of the overall structure of this application; Figure 3 This is a schematic diagram of the first partial structure of this application; Figure 4This is the second partial semi-exploded view of the present application; Figure 5 This is a partial view of the inner side of the branch box of this application; Figure 6 This is a schematic diagram of the structure of the expanded state of this application; Figure 7 For this application Figure 6 Enlarged view of point A in the middle.

[0028] Description of the numbers in the figure: 1. Branch box; 2. Through slot; 3. Breathable plate assembly; 31. Center plate; 32. Heat dissipation mesh plate; 33. Axis rod; 34. Positioning arm; 4. Tube; 5. Fan assembly; 6. Box door; 7. Top plate; 8. Pull-out slot; 9. Pull-out cover plate; 10. Sealing strip; 11. Protective frame; 12. Dust net; 13. Air guide baffle; 14. Fixed rod; 15. Connecting block; 16. Threaded rod; 17. Rotating wheel; 18. Clamp hole; 19. Monitoring probe; 20. Controller; 21. Alarm; 22. Smoke sensor; 23. Support cross arm. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0030] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Example:

[0033] The present application embodiment discloses a photovoltaic energy storage cable branch box with a fault alarm function. Figure 1 , Figure 2 , Figure 3 and Figure 4 , including a branch box 1, both sides of the upper end of the branch box 1 are provided with through grooves 2, and both sides of the upper end of the branch box 1 are provided with air-permeable plate components 3 through the through grooves 2, a tube 4 is fixedly sleeved through the center of the bottom end of the branch box 1, and a fan group 5 is provided in the middle of the inner side of the tube 4, and box doors 6 are symmetrically and movably installed on both sides of the front end opening of the branch box 1, and auxiliary components are provided on the inner surface of one side of the upper end of the two box doors 6, and a top plate 7 is fixedly connected to the top of the branch box 1, and a drawing groove 8 is provided at the front end of the top plate 7, and a drawing cover plate 9 is horizontally slidably sleeved inside the drawing groove 8, and the drawing cover plate 9 is flush with the front end surface of the top plate 7; The inner wall of the front end of the drawer groove 8 is fixedly sleeved with a sealing strip 10, and the inner side wall of the sealing strip 10 is in sliding contact with the outer surface of the drawer cover plate 9. A handle is fixedly installed at the middle position of the front end of the drawer cover plate 9, and legs are fixedly installed at the four corners of the bottom of the branch box body 1. The air permeable plate assembly 3 includes a central plate 31, both ends of which are fixedly connected with heat dissipation mesh plates 32, and the central plate 31 and the two heat dissipation mesh plates 32 are movably connected to the inner wall of the through groove 2, and a shaft 33 is rotatably sleeved on the lower side of the middle of the central plate 31, and both ends of the shaft 33 are fixedly connected with limited rotation arms 34, and the two limited rotation arms 34 are respectively abutted against the inner and outer side walls of the side ends of the branch box 1, and the outer surface of the shaft 33 is in sliding contact with a rubber damping sheet, and the rubber damping sheet is fixedly installed at the inner cavity position of the central plate 31; A protective frame 11 is fixedly installed on the inner wall of the top of the tube 4, and a dustproof net 12 is provided at the bottom of the tube 4, and the outer periphery of the dustproof net 12 is fixedly installed on the bottom of the tube 4 by screws. When the dustproof net 12 is installed with screws at the bottom of the tube 4, the dustproof net 12 can be disassembled and cleaned when needed. An air guide baffle 13 is provided at the bottom of the tube 4, and fixing rods 14 are fixedly connected at the four corners of the top of the air guide baffle 13. The four fixing rods 14 are fixedly installed at the bottom of the branch box 1, and the four fixing rods 14 are distributed on the outside of the tube 4. The setting of the air guide baffle 13 is conducive to the fan group 5 to discharge the hot gas inside the branch box 1 in the process of heat dissipation, and plays a blocking and guiding role in accelerating the direction of the flowing gas, thereby preventing the flowing gas from directly acting on the ground, and preventing the problem of raising ground dust, thereby improving the use effect of the branch box 1 in the heat dissipation process.

[0034] See also Figure 4 , Figure 5 , Figure 6 and Figure 7 The auxiliary component includes a connecting block 15 fixedly mounted on the inner surface of the box door 6, a threaded rod 16 is threadedly connected to one side of the connecting block 15, and a rotating wheel 17 is fixedly mounted on the bottom of the threaded rod 16, wherein a plurality of anti-skid grooves are evenly distributed on the circumference of the outer wall of the rotating wheel 17, and the setting of the anti-skid grooves can effectively facilitate the manual screwing operation of the rotating wheel 17; Both sides of the bottom of the front end of the pull-out cover plate 9 are provided with card holes 18, and the two card holes 18 are respectively plugged and adapted with the top ends of the two threaded rods 16. A monitoring probe 19 and an alarm 21 are fixedly installed on one side of the inner wall of the top end of the branch box 1, and a controller 20 is fixedly installed on the upper end of the inner wall of one side of the branch box 1. A smoke sensor 22 is provided inside the upper side of the tube 4. The smoke sensor 22 is located between the fan group 5 and the protective frame 11, and a supporting cross arm 23 is fixedly installed at the connection between the outer surface of the smoke sensor 22 and the inner wall of one side of the tube 4. Among them, the controller 20 is electrically connected and controlled with the fan group 5, the monitoring probe 19, the alarm 21 and the smoke sensor 22 through wires, and the connection and control function of the controller 20 can be realized by programming, which is the existing technology. In addition, the monitoring probe 19 and the smoke sensor 22 feed back the detection signal to the controller 20, and when a short-circuit fire fault occurs, the controller 20 controls the alarm 21 to start, thereby issuing a fault alarm.

[0035] The implementation principle of the embodiment of the present application is as follows: when in use, the whole is in a fully assembled and static state at a desired position outdoors, and the monitoring probe 19 and the alarm 21 arranged inside the branch box 1 are used to cooperate with the smoke sensor 22 and the support cross arm 23 arranged inside the tube 4, and can be electrically connected with the controller 20, so as to realize the monitoring and early warning function inside the branch box 1, and adapt to the accelerated flow direction of the gas under the heat dissipation work inside the branch box 1, and realize the smoke detection effect inside it, so as to play an effective short-circuit fire fault monitoring and alarm function inside the photovoltaic energy storage cable branch box; When the fan group 5 is controlled to start, it cooperates with the heat dissipation mesh plates 32 in the through grooves 2 on both sides of the upper end of the branch box body 1 to effectively accelerate the flow of air inside and outside the branch box body 1, thereby accelerating the discharge of heat inside the branch box body 1 to the outside, and ensuring the heat dissipation effect inside the branch box body. Among them, the heat dissipation mesh plates 32 on both sides of the middle plate 31 can ensure the flow of air while effectively filtering out dust particles in the gas, and can rotate and swing the two limit rotating arms 34 on the middle plate 31 so that the two can swing upward 180 degrees according to the shaft rod 33, so that the air permeable plate assembly 3 can be disassembled as a whole, and the dust particles filtered out on the surface of the heat dissipation mesh plates 32 can be cleaned; When carrying out inspection and maintenance work on the inside of the branch box 1 on a rainy day, the two box doors 6 can be opened first while keeping them roughly vertical to the branch box 1, and then the pull-out cover plate 9 can be horizontally pulled out from the pull-out groove 8 so that it is extended and presents a state of covering the front side of the branch box 1, and then the rotating wheel 17 on each box door 6 is turned so that the threaded rod 16 rotates and rises on the connecting block 15 until the top of the threaded rod 16 is plugged into the corresponding card hole 18. At this time, the box door 6 and the pull-out cover plate 9 are in a mutually supporting and positioning state, so that the front side of the branch box 1 can be shielded and protected, thereby preventing rainwater from splashing into the inside of the branch box 1 during the inspection and maintenance of the inside.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A photovoltaic energy storage cable branch box with a fault alarm function, comprising a branch box body (1), characterized in that: Both sides of the upper end of the branch box (1) are provided with through grooves (2), and both sides of the upper end of the branch box (1) are provided with air permeable plate components (3) through the through grooves (2). A tube (4) is fixedly sleeved through the center of the bottom end of the branch box (1), and a fan group (5) is provided in the middle of the inner side of the tube (4). Box doors (6) are symmetrically and movably installed on both sides of the front end opening of the branch box (1), and auxiliary components are provided on the inner surfaces of the upper ends of the two box doors (6). A top plate (7) is fixedly connected to the top of the branch box (1), and a pull-out groove (8) is provided at the front end of the top plate (7). A pull-out cover plate (9) is horizontally slidably sleeved inside the pull-out groove (8), and the pull-out cover plate (9) is flush with the front end surface of the top plate (7).

2. A photovoltaic energy storage cable branch box with fault alarm function according to claim 1, characterized in that: A sealing strip (10) is fixedly sleeved on the inner wall of the front end of the drawer groove (8), and the inner side wall of the sealing strip (10) is in sliding contact with the outer surface of the drawer cover plate (9).

3. A photovoltaic energy storage cable branch box with fault alarm function according to claim 1, characterized in that: A handle ring is fixedly mounted at the middle of the front end surface of the drawer cover plate (9), and legs are fixedly mounted at the four corners of the bottom of the branch box body (1).

4. A photovoltaic energy storage cable branch box with fault alarm function according to claim 1, characterized in that: The air permeable plate assembly (3) comprises a central plate (31), both ends of which are fixedly connected to heat dissipation mesh plates (32), and the central plate (31) and the two heat dissipation mesh plates (32) are movably clamped to the inner wall of the through slot (2), a shaft (33) is rotatably sleeved through the lower side of the middle of the central plate (31), both ends of the shaft (33) are fixedly connected to limit rotation arms (34), and the two limit rotation arms (34) are respectively abutted against the inner and outer side walls of the side ends of the branch box (1).

5. A photovoltaic energy storage cable branch box with fault alarm function according to claim 4, characterized in that: The outer surface of the shaft rod (33) is in sliding contact with a rubber damping sheet, and the rubber damping sheet is fixedly mounted at an inner cavity position of the middle plate (31).

6. A photovoltaic energy storage cable branch box with fault alarm function according to claim 1, characterized in that: A protective frame (11) is fixedly mounted on the inner wall of the top end of the tube (4), a dustproof net (12) is provided at the bottom of the tube (4), and the outer periphery of the dustproof net (12) is fixedly mounted on the bottom of the tube (4) by means of screws.

7. A photovoltaic energy storage cable branch box with a fault alarm function according to claim 1, characterized in that: An air guide baffle (13) is provided below the tube (4), and fixing rods (14) are fixedly connected to the four corners of the top of the air guide baffle (13), and the four fixing rods (14) are fixedly installed on the bottom of the branch box (1), and the four fixing rods (14) are distributed on the outside of the tube (4).

8. The photovoltaic energy storage cable branch box with fault alarm function according to claim 1 is characterized in that: The auxiliary component comprises a connecting block (15) fixedly mounted on the inner surface of the box door (6), a threaded rod (16) being threadedly connected through one side of the connecting block (15), and a rotating wheel (17) being fixedly mounted on the bottom of the threaded rod (16).

9. A photovoltaic energy storage cable branch box with fault alarm function according to claim 8, characterized in that: The bottom of the front end of the drawer cover plate (9) is provided with clamping holes (18) on both sides, and the two clamping holes (18) are respectively plugged and matched with the top ends of the two threaded rods (16).

10. A photovoltaic energy storage cable branch box with fault alarm function according to claim 6, characterized in that: A monitoring probe (19) and an alarm (21) are fixedly mounted on one side of the inner wall at the top of the branch box (1), and a controller (20) is fixedly mounted on the upper end of the inner wall on one side of the branch box (1). A smoke sensor (22) is provided inside the upper side of the tube (4). The smoke sensor (22) is located between the fan group (5) and the protective frame (11), and a supporting cross arm (23) is fixedly mounted at the connection between the outer surface of the smoke sensor (22) and the inner wall on one side of the tube (4).

Images