Intelligent photovoltaic grid-connected cabinet with fireproofing and remote communication monitoring

Abstract

The application relates to the technical field of switch cabinets, in particular to an intelligent photovoltaic grid-connected cabinet with fire prevention and remote communication monitoring, which comprises a photovoltaic grid-connected cabinet main body, the outer wall of the photovoltaic grid-connected cabinet main body is fixedly connected with a start-end box, the inner wall of the start-end box is fixedly installed with an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with a first sliding block, the outer wall of the first sliding block is fixedly connected with a guide rod, the outer wall of the guide rod is slidably connected with a second sliding block, and the beneficial effect of the application is that when the first contact block continues to move, the brush between the adjacent first bus bridge branch connecting plates reciprocates left and right after touching the end, the brush is extruded on the outer walls of the first bus bridge branch connecting plates on the left and right sides, the bristles of the brush can be extruded and deformed along the outer walls of the first bus bridge branch connecting plates and brushed, and the outer walls of the first bus bridge branch connecting plates are cleaned.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of switch cabinets, in particular to an intelligent photovoltaic grid-connected cabinet with fire prevention and remote communication monitoring. BACKGROUND

[0002] The grid-connected cabinet is a core power distribution equipment in a photovoltaic power generation system, is usually located between the output end of the inverter and the power grid, and is a safety gate of photovoltaic electric energy.

[0003] At present, the existing grid-connected cabinet on the market will continuously heat up at the busbar bridge bolt pressing position of the initial end box during long-term use, so the busbar bridge is the largest heat generating area in the entire grid-connected cabinet. Therefore, the existing grid-connected cabinet is prone to explosion and fire in the initial end box. For the fire prevention measures of the busbar bridge in the initial end box, the installed fire extinguishing device in the initial end box sprays insulating perfluorohexone foam for fire extinguishing when the temperature sensor detects an abnormally high temperature. However, since the branches of the busbar bridge are installed adjacent to each other, the gap between the branches is small. Directly spraying insulating foam for fire extinguishing and cooling, the foam is easy to accumulate in the opening between the adjacent branches, and the deep part of the gap cannot be covered by the foam, so that the internal heat is easy to accumulate and cause secondary combustion. Therefore, a fireproof grid-connected cabinet is needed to solve the problem. SUMMARY

[0004] The present application provides an intelligent photovoltaic grid-connected cabinet with fire prevention and remote communication monitoring, which has the beneficial effects of uniformly spraying foam into the gap between adjacent branches for fire extinguishing, and dust removal on the outer wall of each branch, solving the problem of secondary combustion caused by the accumulation of internal heat due to the small gap between the branches of the busbar bridge, the direct spraying of insulating foam for fire extinguishing and cooling, and the accumulation of foam in the opening between the adjacent branches. In order to achieve the above purpose, the present application provides the following technical scheme: an intelligent photovoltaic grid-connected cabinet with fire prevention and remote communication monitoring, comprising a photovoltaic grid-connected cabinet main body, an initial end box fixedly connected to the outer wall of the photovoltaic grid-connected cabinet main body, an electric telescopic rod fixedly installed on the inner wall of the initial end box, a first sliding block fixedly connected to the output end of the electric telescopic rod, a guide rod fixedly connected to the outer wall of the first sliding block, a second sliding block slidingly connected to the outer wall of the guide rod, a limit block fixedly connected to one end of the guide rod, a first guide rod slidingly connected to the inner wall of the second sliding block, a second guide rod slidingly connected to the outer wall of the first guide rod, a first connecting rod fixedly connected to one end of the first guide rod, and a first ball bearing rotatably installed on one end of the first connecting rod.

[0005] The other end of the first guide rod is fixedly connected to a second connecting rod, and the inner contour of the first guide rod and the second guide rod is square.

[0006] Preferably, the inner wall of the start box is provided with a first sliding groove, and the first sliding block is slidingly connected to the inner wall of the first sliding groove.

[0007] The outer wall of the second sliding block is fixedly installed with a storage tank, and the outer wall of the second sliding block is fixedly installed with an electric spray head in communication with the inside of the storage tank.

[0008] Preferably, the outer wall of the second guide rod is fixedly connected with a fixing sheet, the outer wall of the fixing sheet is fixedly connected with a first return spring, the first return spring is sleeved on the outer wall of the first guide rod, and one end of the first return spring is fixedly connected with the outer wall of the second sliding block.

[0009] Preferably, the inner wall of the start box is fixedly connected with a fixing plate, the outer wall of the fixing plate is provided with a track groove, the track groove penetrates through the fixing plate, the first connecting rod is slidingly connected to the inner wall of the track groove, the inner wall of the start box is fixedly connected with a plurality of abutting protrusions, and the abutting protrusions are arranged in a circular arc shape.

[0010] Preferably, one end of the second connecting rod is fixedly connected with a first abutting block, and the first abutting block is arranged in a hemispherical shape.

[0011] Preferably, the outer wall of the second guide rod is slidingly connected with a moving plate, the outer wall of the moving plate is provided with a third sliding groove, the second guide rod is slidingly connected to the inner wall of the third sliding groove, the inner wall of the third sliding groove is provided with a second sliding groove, the inner wall of the second sliding groove is slidingly connected with a third sliding block, the outer wall of the third sliding block is fixedly connected with the outer wall of the second guide rod, the outer wall of the second guide rod is fixedly connected with a second return spring, and one end of the second return spring is fixedly connected with the inner wall of the third sliding groove.

[0012] Preferably, the outer wall of the moving plate is fixedly connected with a brush, the inner wall of the moving plate is fixedly connected with a plurality of second abutting blocks and third abutting blocks, and the second abutting blocks and the third abutting blocks are arranged in opposite staggered manner.

[0013] Preferably, second rolling balls are rotatably installed at the end portions of the second abutting blocks and the third abutting blocks.

[0014] Preferably, the inner wall of the start box is fixedly connected with a busbar bridge main road connecting plate, and one end of the busbar bridge main road connecting plate is fixedly connected with a busbar bridge starting end.

[0015] Preferably, the outer wall of the busbar bridge main road connecting plate is fixedly connected with a plurality of first busbar bridge branch road connecting plates, and the outer wall of the first busbar bridge branch road connecting plate is fixedly connected with a plurality of second busbar bridge branch road connecting plates.

[0016] A temperature sensor is fixedly installed in the inner wall of the start box.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] 1、The electric nozzle can reciprocate up and down during the lateral movement of the first sliding block, so that the gap between the main bus bridge connecting plate and the plurality of first bus bridge branch connecting plates can be sprayed to the maximum extent, and the coverage is wide.

[0019] 2、When the moving plate moves, the brush on the outer wall enters the gap between the adjacent two first bus bridge branch connecting plates at the highest or lowest point of the up-and-down movement, so that the foam accumulated outside the gap of the adjacent first bus bridge branch connecting plates can be pushed to the deep part of the gap, and the fire extinguishing and cooling between the adjacent first bus bridge branch connecting plates can be further performed.

[0020] 3、When the first abutting block continues to move, the brush between the adjacent first bus bridge branch connecting plates reciprocates left and right after abutting to the end, so that the brush is extruded on the outer wall of the first bus bridge branch connecting plate on both sides, and the bristles of the brush can be deformed and brushed against the outer wall of the first bus bridge branch connecting plate, so that the dust on the outer wall of the first bus bridge branch connecting plate can be cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic view of the main body structure of the present application;

[0022] Figure 2 is a schematic view of the top view of the start end box of the present application;

[0023] Figure 3 is a schematic view of the second sliding block and its surrounding enlarged structure of the present application;

[0024] Figure 4 is a schematic view of the second guide rod and its surrounding structure of the present application;

[0025] Figure 5 is a schematic view of the start end box of the present application from another perspective;

[0026] Figure 6 is a schematic view of the moving plate and its surrounding structure of the present application;

[0027] Figure 7 is a schematic view of the Figure 6 enlarged structure at A of the present application;

[0028] Figure 8 is a schematic view of the moving plate and its surrounding structure of the present application;

[0029] Figure 9A schematic view of a top view and a sectional structure of a moving plate and its periphery of the present application.

[0030] In the drawings, the components represented by each reference numeral are listed as follows: 1, photovoltaic grid-connected cabinet main body; 2, start-end box; 3, busbar bridge start-end head; 4, busbar bridge main path connecting plate; 5, first busbar bridge branch path connecting plate; 6, second busbar bridge branch path connecting plate; 7, electric telescopic rod; 8, first sliding groove; 9, first sliding block; 10, guide rod; 11, limiting block; 12, second sliding block; 13, storage tank; 14, electric spray head; 15, first guide rod; 16, first connecting rod; 17, first ball; 18, fixed sheet; 19, first return spring; 20, fixed plate; 21, track groove; 22, abutting protrusion; 23, moving plate; 24, second sliding groove; 26, third sliding block; 27, second return spring; 28, brush; 29, second guide rod; 30, second connecting rod; 31, first abutting block; 32, second abutting block; 33, third abutting block; 34, second ball; 35, third sliding groove; 36, temperature sensor. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to 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. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0032] In Example One, the present embodiment is used to solve the problem that, due to the adjacent installation of each branch of the busbar bridge, the gap between each branch is small, direct spraying of insulating foam for fire extinguishing and cooling, and the foam is easy to accumulate at the opening of the gap between the adjacent branches, while the deep part of the gap cannot be covered by the foam, resulting in easy accumulation of internal heat and secondary combustion. Please refer to Figure 1 Figure 9 An intelligent photovoltaic grid-connected cabinet with fireproof and remote communication monitoring function, comprising a photovoltaic grid-connected cabinet main body 1, a start-end box 2 fixedly connected to the outer wall of the photovoltaic grid-connected cabinet main body 1, an electric telescopic rod 7 fixedly installed on the inner wall of the start-end box 2, a first sliding block 9 fixedly connected to the output end of the electric telescopic rod 7, a guide rod 10 fixedly connected to the outer wall of the first sliding block 9, a second sliding block 12 slidably connected to the outer wall of the guide rod 10, a limiting block 11 fixedly connected to one end of the guide rod 10, a first guide rod 15 slidably connected to the inner wall of the second sliding block 12, a second guide rod 29 slidably connected to the outer wall of the first guide rod 15, a first connecting rod 16 fixedly connected to one end of the first guide rod 15, and a first ball 17 rotatably installed at one end of the first connecting rod 16.

[0033] ​The other end of the first guide rod 15 is fixedly connected with a second connecting rod 30, and the inner contours of the first guide rod 15 and the second guide rod 29 are both square.

[0034] The inner wall of the start-end box 2 is provided with a first sliding groove 8, and a first sliding block 9 is slidingly connected to the inner wall of the first sliding groove 8.

[0035] The outer wall of the second sliding block 12 is fixedly installed with a storage tank 13, and the outer wall of the second sliding block 12 is fixedly installed with an electric spray head 14, which is in communication with the inside of the storage tank 13.

[0036] The outer wall of the second guide rod 29 is fixedly connected with a fixed sheet 18, the outer wall of the fixed sheet 18 is fixedly connected with a first return spring 19, the first return spring 19 is sleeved on the outer wall of the first guide rod 15, and one end of the first return spring 19 is fixedly connected with the outer wall of the second sliding block 12.

[0037] The outer wall of the second guide rod 29 is slidingly connected with a moving plate 23, the outer wall of the moving plate 23 is provided with a third sliding groove 35, the second guide rod 29 is slidingly connected to the inner wall of the third sliding groove 35, the inner wall of the third sliding groove 35 is provided with a second sliding groove 24, the inner wall of the second sliding groove 24 is slidingly connected with a third sliding block 26, the outer wall of the third sliding block 26 is fixedly connected with the outer wall of the second guide rod 29, the outer wall of the second guide rod 29 is fixedly connected with a second return spring 27, and one end of the second return spring 27 is fixedly connected with the inner wall of the third sliding groove 35.

[0038] The inner wall of the start-end box 2 is fixedly connected with a busbar bridge main path connecting plate 4, and one end of the busbar bridge main path connecting plate 4 is fixedly connected with a busbar bridge starting end 3.

[0039] The outer wall of the busbar bridge main path connecting plate 4 is fixedly connected with a plurality of first busbar bridge branch path connecting plates 5, and the outer wall of the first busbar bridge branch path connecting plate 5 is fixedly connected with a plurality of second busbar bridge branch path connecting plates 6.

[0040] The inner wall of the start-end box 2 is fixedly installed with a temperature sensor 36.

[0041] In this embodiment, when the temperature sensor 36 in the start-end box 2 detects an abnormally high temperature higher than the set value during use of the grid-connected cabinet, the temperature sensor 36 sends an electric signal to start the electric spray head 14 and the electric telescopic rod 7, at this time, the electric spray head 14 starts to spray high-pressure insulation type perfluorohexone foam in the storage tank 13 towards the busbar bridge main path connecting plate 4, and the sprayed foam preliminarily cools and extinguishes the busbar bridge main path connecting plate 4 and the first busbar bridge branch path connecting plate 5 and the second busbar bridge branch path connecting plate 6.

[0042] With the starting of the electric telescopic rod 7, the electric telescopic rod 7 will reciprocate according to the setting, and the output end of the electric telescopic rod 7 will move along the first sliding groove 8 with the first sliding block 9. When the electric telescopic rod 7 moves to the end of the first sliding groove 8, the output end of the electric telescopic rod 7 will move in the opposite direction.

[0043] With the sliding of the first sliding block 9 in the first sliding groove 8, the first sliding block 9 will move synchronously with the first connecting rod 16 and the first ball 17. At this time, the first connecting rod 16 will slide along the track groove 21 of the wave path. With the sliding of the first connecting rod 16 along the inner wall of the track groove 21, due to the wave track setting of the track groove 21, when the first connecting rod 16 slides upward in the track of the track groove 21, the first connecting rod 16 is forced to move upward, and the first connecting rod 16 will move along the guide rod 10 with the first guide rod 15 and the second sliding block 12. At this time, the electric nozzle 14 will move upward with the first guide rod 15 and the second sliding block 12, and the electric nozzle 14 will spray the upper end of the busbar bridge main road connecting plate 4.

[0044] When the first connecting rod 16 slides downward along the track of the track groove 21, the electric nozzle 14 will move downward with the first guide rod 15 and the second sliding block 12, and the electric nozzle 14 will spray the lower end of the busbar bridge main road connecting plate 4. Therefore, with the movement of the first sliding block 9, the electric nozzle 14 can reciprocate upward and downward, and can spray the gap between the busbar bridge main road connecting plate 4 and the plurality of first busbar bridge branch connecting plates 5 to the maximum extent, and the coverage is wide.

[0045] When the first connecting rod 16 gradually slides to the highest or lowest position along the track groove 21, the first ball 17 at the end of the first connecting rod 16 will be in contact with the outer wall of the contact protrusion 22. The contact will cause the first connecting rod 16 to gradually move away from the contact protrusion 22. The movement of the first connecting rod 16 will cause the first guide rod 15 to move synchronously. At this time, the first guide rod 15 will move with the second connecting rod 30 and the first contact block 31 at the end of the first guide rod 15 in contact with the outer wall of the second ball 34 corresponding to the second contact block 32, and will push the entire moving plate 23 and the second guide rod 29 to slide along the outer wall of the first guide rod 15 away from the first guide rod 15. It should be noted that the contact force at this time is greater than the elastic force of the first return spring 19, so the second guide rod 29 can slide along the outer wall of the first guide rod 15, and the second guide rod 29 moves with the fixed sheet 18 synchronously to stretch and tighten the first return spring 19.

[0046] It should be noted that the elastic force of the first return spring 19 is smaller than the elastic force of the second return spring 27, so when the second ball 34 is contacted by the first contact block 31, the contact force will first cause the first return spring 19 to stretch and move with the moving plate 23 and the second guide rod 29.

[0047] With the movement of the moving plate 23, the moving plate 23 with the brush 28 of the outer wall enters the gap between the two adjacent first bus bridge branch connecting plates 5, and can push the foam accumulated outside the gap between the adjacent first bus bridge branch connecting plates 5 to the deep part of the gap, and further extinguish the fire between the adjacent first bus bridge branch connecting plates 5.

[0048] Embodiment two, this embodiment is improved on the basis of embodiment one, specifically, please refer to Figure 1 Figure 9 The inner wall of the start box 2 is fixedly connected with a fixed plate 20, the outer wall of the fixed plate 20 is provided with a track groove 21, the track groove 21 penetrates through the fixed plate 20, the first connecting rod 16 is slidingly connected to the inner wall of the track groove 21, and the inner wall of the start box 2 is fixedly connected with a plurality of abutting protrusions 22.

[0049] One end of the second connecting rod 30 is fixedly connected with a first abutting block 31, and the first abutting block 31 is provided in a semispherical shape.

[0050] The outer wall of the moving plate 23 is fixedly connected with a brush 28, the inner wall of the moving plate 23 is fixedly connected with a plurality of second abutting blocks 32 and third abutting blocks 33, and the second abutting blocks 32 and the third abutting blocks 33 are arranged in opposite staggered manner.

[0051] The end portions of the second abutting blocks 32 and the third abutting blocks 33 are rotatably provided with second rolling balls 34.

[0052] In this embodiment: in the long-term use environment, a large amount of dust will be adsorbed between the first bus bridge branch connecting plates 5 due to static electricity, and these dusts will affect the fire extinguishing and heat dissipation effect of the foam in the fire, therefore, in order to improve the efficiency of heat dissipation and fire extinguishing, and make the foam in the gap between the first bus bridge branch connecting plates 5 better extinguish the fire and dissipate the heat, with the continuous abutting of the first rolling ball 17 and the abutting protrusion 22, when the first rolling ball 17 continues to slide along the outer wall of the abutting protrusion 22, the moving plate 23 finally abuts against the outer wall of the bus bridge main connecting plate 4 and cannot continue to move, at this time, the first guide rod 15 with the second connecting rod 30 and the first abutting block 31 continues to slide along the inner wall of the second guide rod 29, the first abutting block 31 abuts against the second rolling ball 34, the second rolling ball 34 with the second abutting block 32 is stressed to the right side, the second abutting block 32 with the moving plate 23 as a whole slides a small distance to the right along the outer wall of the second guide rod 29, and in the sliding process, the right side second return spring 27 is compressed to facilitate subsequent return.

[0053] ​When the first contact block 31 continues to move and disengage the second ball 34 corresponding to the single second contact block 32, at this time the second reset spring 27 resets the entire moving plate 23, as the first contact block 31 continues to move, it will contact the second ball 34 corresponding to the left third contact block 33, and force the moving plate 23 to slide to the left as a whole, compressing the left second reset spring 27.

[0054] It should be noted that since the second contact block 32 and the third contact block 33 are arranged in opposite directions, and each is provided with a plurality of second balls 34, when the first contact block 31 continues to move, the moving plate 23 as a whole will reciprocate the brush 28 left and right, so that the brush 28 is extruded on the outer wall of the first bus bridge branch connecting plate 5 on both sides, and the brush of the brush 28 can be extruded and deformed along the outer wall of the first bus bridge branch connecting plate 5 and brushed, completing the cleaning of the dust on the outer wall of the first bus bridge branch connecting plate 5.

[0055] It should be noted that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0056] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An intelligent photovoltaic grid-connected cabinet with fireproof and remote communication monitoring, comprising a photovoltaic grid-connected cabinet body (1), characterized in that: The outer wall of the photovoltaic grid-connected cabinet body (1) is fixedly connected with a start end box (2), the inner wall of the start end box (2) is fixedly installed with an electric telescopic rod (7), the output end of the electric telescopic rod (7) is fixedly connected with a first sliding block (9), the outer wall of the first sliding block (9) is fixedly connected with a guide rod (10), the outer wall of the guide rod (10) is slidably connected with a second sliding block (12), one end of the guide rod (10) is fixedly connected with a limiting block (11), the inner wall of the second sliding block (12) is slidably connected with a first guide rod (15), the outer wall of the first guide rod (15) is slidably connected with a second guide rod (29), one end of the first guide rod (15) is fixedly connected with a first connecting rod (16), the first connecting rod (16) is rotatably installed with a first ball (17) at one end thereof; The other end of the first guide rod (15) is fixedly connected with a second connecting rod (30), and the inner contours of the first guide rod (15) and the second guide rod (29) are both square-shaped; One end of the second connecting rod (30) is fixedly connected with a first abutting block (31), and the first abutting block (31) is provided in a semispherical shape; The outer wall of the second guide rod (29) is slidably connected with a moving plate (23), the outer wall of the moving plate (23) is provided with a third sliding groove (35), the second guide rod (29) is slidably connected to the inner wall of the third sliding groove (35), the inner wall of the third sliding groove (35) is provided with a second sliding groove (24), the inner wall of the second sliding groove (24) is slidably connected with a third sliding block (26), the outer wall of the third sliding block (26) is fixedly connected with the outer wall of the second guide rod (29), the outer wall of the second guide rod (29) is fixedly connected with a second return spring (27), one end of the second return spring (27) is fixedly connected with the inner wall of the third sliding groove (35); The outer wall of the moving plate (23) is fixedly connected with a brush (28), the inner wall of the moving plate (23) is fixedly connected with a plurality of second abutting blocks (32) and third abutting blocks (33), and the second abutting blocks (32) and the third abutting blocks (33) are oppositely and staggeredly arranged.

2. The intelligent photovoltaic grid-connected cabinet with fireproof and remote communication monitoring according to claim 1, characterized in that: The inner wall of the start end box (2) is provided with a first sliding groove (8), and the first sliding block (9) is slidably connected to the inner wall of the first sliding groove (8); The outer wall of the second sliding block (12) is fixedly installed with a storage tank (13), and the outer wall of the second sliding block (12) is fixedly installed with an electric nozzle (14), which is in communication with the inside of the storage tank (13). 3.The intelligent photovoltaic grid-connected cabinet with fireproof and remote communication monitoring according to claim 2, characterized in that: The outer wall of the second guide rod (29) is fixedly connected with a fixing sheet (18), the outer wall of the fixing sheet (18) is fixedly connected with a first return spring (19), the first return spring (19) is sleeved on the outer wall of the first guide rod (15), and one end of the first return spring (19) is fixedly connected with the outer wall of the second sliding block (12).

4. The intelligent photovoltaic grid-connected cabinet with fireproof and remote communication monitoring according to claim 3, characterized in that: The inner wall of the beginning end box (2) is fixedly connected with a fixed plate (20), the outer wall of the fixed plate (20) is provided with a track groove (21), the track groove (21) penetrates through the fixed plate (20), the first connecting rod (16) is slidingly connected to the inner wall of the track groove (21), and the inner wall of the beginning end box (2) is fixedly connected with a plurality of abutting protrusions (22).

5. The intelligent photovoltaic grid-connected cabinet with fireproof and remote communication monitoring according to claim 1, characterized in that: The end portions of the second abutting block (32) and the third abutting block (33) are rotatably provided with second rolling balls (34).

6. The intelligent photovoltaic grid-connected cabinet with fireproof and remote communication monitoring according to claim 5, characterized in that: The inner wall of the beginning end box (2) is fixedly connected with a bus bridge main path connecting plate (4), one end of the bus bridge main path connecting plate (4) is fixedly connected with a bus bridge starting end head (3).

7. The intelligent photovoltaic grid-connected cabinet with fireproof and remote communication monitoring according to claim 6, characterized in that: The outer wall of the bus bridge main path connecting plate (4) is fixedly connected with a plurality of first bus bridge branch path connecting plates (5), and the outer wall of the first bus bridge branch path connecting plate (5) is fixedly connected with a plurality of second bus bridge branch path connecting plates (6). The inner wall of the beginning end box (2) is fixedly provided with a temperature sensor (36).

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