Low-voltage distributed photovoltaic grid-connected cabinet

Abstract

The invention, which relates to the technical field of the grid-connected cabinet, discloses a low-voltage distributed photovoltaic grid-connected cabinet comprising a grid-connected main body and a connecting assembly used for connecting terminals between devices. The splicing assembly is used for installing the spliced assembly in the grid-connected cabinet and supporting the connecting assembly; the adjusting assembly is used for adjusting the position of the connecting assembly according to different positions of the terminals; the reset assembly is used for separating the equipment terminal from the cable; the cooling assembly is used for cooling the joint of the equipment terminal and the cable; and the fixing assembly is used for fixing the connecting assembly moved to the proper position. By pulling the extension rod, the conductive terminal arranged at the top of the conductive block is inserted between the binding post and the sleeve plate, and the problems that in the using process of a traditional low-voltage distributed photovoltaic grid-connected cabinet, due to the fact that a threaded terminal is usually adopted by an electric power device to fix a cable, cable installation is tedious, and the use cost is low are further solved. And the cable is easy to cross and wind.

Description

Technical Field

[0001] The present invention relates to the technical field of grid-connected cabinets, and in particular to a low-voltage distributed photovoltaic grid-connected cabinet. Background Art

[0002] The grid-connected cabinet is used to adjust the motor speed to adjust the operating frequency of the equipment, reduce energy loss, start the equipment smoothly, reduce the damage to the motor caused by the large current generated when the equipment is directly started, and avoid the impact of large current on the power grid during startup. It also has built-in analog input, PID control, pump switching control, communication function, macro function and multi-speed, etc.

[0003] The existing technology has the following problems: 1. During the use of existing low-voltage distributed photovoltaic grid-connected cabinets, since power devices usually use threaded terminals to fix cables, it not only makes cable installation more cumbersome, but also easily causes cable cross-entanglement problems; 2. During the use of existing low-voltage distributed photovoltaic grid-connected cabinets, there are many devices in the grid-connected cabinets and the cables are messy, which causes inconvenience in subsequent maintenance or dust removal of the grid-connected cabinets. Summary of the Invention

[0004] The present invention provides a low-voltage distributed photovoltaic grid-connected cabinet to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A low-voltage distributed photovoltaic grid-connected cabinet, comprising a grid-connected main body, Connecting components, used to connect terminals between devices; Splicing components are used to install the spliced ​​components in the grid cabinet and support the connected components; An adjusting component, used for adjusting the position of the connecting component according to the different positions of the terminals; Reset component, used to separate the device terminal from the cable; Cooling components, used to cool the connection points between equipment terminals and cables; The fixing component is used to fix the connecting component moved to a suitable position.

[0006] A further improvement of the technical solution of the present invention is that: door panels are rotatably connected to both sides of the outer wall of the grid-connected body, and a mounting bracket is slidably connected to the inner wall of the grid-connected body, one side of the outer wall of the mounting bracket is fixedly connected to a mounting plate, and one side of the outer wall of the mounting plate is installed with a circuit breaker, an anti-islanding protection device, an online power quality monitoring device, an electric energy meter, a current transformer and a network power meter.

[0007] A further improvement of the technical solution of the present invention is that the splicing assembly includes a plurality of limit boxes fixedly connected to the inner wall of the mounting frame, and the inner wall of the limit box is slidably connected to the limit plate, and the top of the limit plate is slidably connected to the moving box.

[0008] A further improvement of the technical solution of the present invention is that: the adjustment component includes a connection box slidably connected to the inner wall of the mobile box, and both ends of the top of the connection box are fixedly connected to a support plate, one side of the inner wall of the support plate is slidably connected to an insulating block, and the inner wall of the insulating block is fixedly connected to a conductive block, the top of the conductive block is fixedly connected to a conductive terminal, and the top of the conductive terminal is clamped with a terminal post, one side of the outer wall of the terminal post is threadedly connected to a sleeve plate, and the top of the sleeve plate is fixedly connected to the bottom of the current transformer.

[0009] A further improvement of the technical solution of the present invention is that: the connecting assembly includes an extension tube slidably connected to one side of the inner wall of the connecting box, and the outer wall of the extension tube is overlapped with a return spring, and one end of the return spring is fixedly connected to one side of the inner wall of the connecting box, and the end of the outer wall of the extension tube away from the return spring is fixedly connected to a special-shaped push block, and the two sides of the outer wall of the special-shaped push block are slidably connected to the inner wall of the support plate.

[0010] A further improvement of the technical solution of the present invention is that a limiting groove is provided on the inner wall of the extension tube, and an extension rod is slidably connected to the inner wall of the limiting groove, and one end of the outer wall of the extension rod is slidably connected to one side of the inner wall of the moving box.

[0011] A further improvement of the technical solution of the present invention is that: the reset assembly includes an elastic reset box fixedly connected to the inner wall of the support plate close to the insulating block, and the inner wall of the elastic reset box is slidably connected to a sliding rod, and one end of the sliding rod is fixedly connected to a traction frame, one side of the outer wall of the traction frame is fixedly connected to the bottom of one side of the outer wall of the insulating block, and the side of the outer wall of the traction frame away from the insulating block is slidably connected to the outer wall of the special-shaped push block.

[0012] A further improvement of the technical solution of the present invention is that the cooling component includes a micro fan fixedly connected to one end of the top of the support plate, and the two ends of one side of the outer wall of the micro fan are fixedly connected to a diversion hose, one end of the diversion hose is fixedly connected to an exhauster, and the bottom of the exhauster is fixedly connected to the end of the top of the support plate away from the micro fan.

[0013] A further improvement of the technical solution of the present invention is that the fixing component includes a plurality of slots opened on both sides of the outer wall of the mobile box, and the inner walls of the slots are clamped with the limit blocks, and one end of the outer wall of the limit blocks is rotatably connected to the outer wall of the support plate.

[0014] A further improvement of the technical solution of the present invention is that: a connecting terminal is fixedly connected to one side of the inner wall of the conductive block, and a connecting wire is inserted into the outer wall of the connecting terminal, and one end of the outer wall of the connecting wire is slidably connected to one end of the inner cavity of the movable box.

[0015] Due to the adoption of the above technical solution, the present invention has the following technical advancements compared to the prior art: 1. The present invention provides a low-voltage distributed photovoltaic grid-connected cabinet. A limit box is fixed between mounting frames, and then the same number of movable boxes are respectively installed on the front and back sides of the limit plate according to the number of terminals of the power device. The limit plate with the movable boxes installed is inserted into the limit box so that the connection box provided on the inner wall is aligned with the terminal of the power device. By pulling the extension rod, the extension rod drives the extension tube so that the conductive terminal provided on the top of the conductive block is inserted between the terminal post and the sleeve plate. This further solves the problem that in the use of traditional low-voltage distributed photovoltaic grid-connected cabinets, since the power device usually uses threaded terminals to fix the cables, not only the cable installation is cumbersome, but also the cable cross-entanglement is easily caused.

[0016] 2. The present invention provides a low-voltage distributed photovoltaic grid-connected cabinet, which rotates the extension rod counterclockwise by thirty degrees, so that the card block and the extension rod are retracted into the movable box under the action of the return force of the reset spring, and one end of the extension tube is fitted with one side of the inner wall of the connection box. At this time, the traction frame is free from the restriction of the special-shaped push block, and utilizes the elastic reset box provided on the inner wall of the support plate close to the insulating block to pull through the sliding rods provided at both ends of the outer wall of the traction frame, so that the traction frame drives the insulating block to move downward in the support plate, and the conductive terminal is separated from the contact with the terminal post and the sleeve plate, thereby achieving power off, further solving the problem of inconvenience caused by the large number of devices and messy cables in the traditional low-voltage distributed photovoltaic grid-connected cabinet during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the structure of the present invention; Figure 3 Schematic diagram of the limiting plate structure of the present invention; Figure 4 It is a schematic structural diagram of the mobile box of the present invention; Figure 5 It is a schematic diagram of the top surface of the mobile box of the present invention; Figure 6 It is a cross-sectional schematic diagram of the mobile box of the present invention; Figure 7 This is a schematic structural diagram of the connection box of the present invention; Figure 8is a schematic cross-sectional view of an extension tube of the present invention; Figure 9 is a schematic cross-sectional view of an insulating block of the present invention; Figure 10 For the present invention Figure 7 Enlarged schematic diagram of point A in the middle.

[0018] In the figure: 1. Grid-connected main body; 2. Door panel; 3. Mounting frame; 4. Mounting plate; 5. Circuit breaker; 6. Anti-islanding protection device; 7. Online power quality monitoring device; 8. Electric energy meter; 9. Current transformer; 10. Network power meter; 11. Limit box; 12. Limit plate; 13. Moving box; 14. Connection box; 15. Support plate; 16. Insulation block; 17. Conductive block; 18. Conductive terminal; 19. Terminal; 20. Sleeve plate; 21. Extension tube; 22. Reset spring; 23. Special-shaped push block; 24. Limit slot; 25. Extension rod; 26. Elastic reset box; 27. Slide rod; 28. Traction frame; 29. ​​Micro fan; 30. Diverter hose; 31. Exhaust fan; 32. Card slot; 33. Limit block; 34. Connection terminal; 35. Connection wire. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figures 1 to 10 As shown, a low-voltage distributed photovoltaic grid-connected cabinet according to an embodiment of the present invention includes a grid-connected main body 1, a connecting component for connecting terminals between devices; a splicing component for installing the spliced ​​components in the grid-connected cabinet and supporting the connecting component; an adjusting component for adjusting the position of the connecting component according to the different positions of the terminals; a resetting component for separating the device terminals from the cables; a cooling component for cooling the connection between the device terminals and the cables; a fixing component for fixing the connecting component moved to a suitable position, and the grid-connected main body Door panels 2 are rotatably connected to both sides of the outer wall of the body 1, and a mounting bracket 3 is slidably connected to the inner wall of the grid-connected main body 1. A mounting plate 4 is fixedly connected to one side of the outer wall of the mounting bracket 3, and a circuit breaker 5, an anti-islanding protection device 6, an online power quality monitoring device 7, an electric energy meter 8, a current transformer 9 and a network power meter 10 are installed on one side of the outer wall of the mounting plate 4. The splicing assembly includes several limit boxes 11 fixedly connected to the inner wall of the mounting bracket 3, and the inner wall of the limit box 11 is slidably connected to the limit plate 12, and the top of the limit plate 12 is slidably connected to the movable box 13.

[0021] During operation, the door panels 2 provided on both sides of the outer wall of the grid-connected main body 1 are opened, and the mounting plate 4 is fixed inside the grid-connected main body 1. Then, the circuit breaker 5, the anti-islanding protection device 6, the power quality online monitoring device 7, the power meter 8, the current transformer 9 and the network power meter 10 are fixed on one side of the mounting plate 4. Then, several mounting racks 3 are respectively installed between the power devices, and the limit boxes 11 are fixed between the mounting racks 3. Then, according to the number of terminals of the power devices, the same number of mobile boxes 13 are respectively installed on the front and back sides of the limit plates 12, and the limit plates 12 with the mobile boxes 13 installed are inserted into the limit boxes 11. At this time, the operator adjusts the mobile box 13 so that the connection box 14 provided on the inner wall is aligned with the power device. The terminal of the force device is then pressed, and the limit blocks 33 provided on both sides of the outer wall of the support plate 15 are pressed, so that one end of the limit block 33 is embedded in the card slot 32 provided on both sides of the outer wall of the mobile box 13, and the connection box 14 is fixed. By providing an insulating block 16 on one side of the inner wall of the support plate 15, one end of the connecting wire 35 is inserted into the conductive block 17 provided on the inner wall of the insulating block 16. At this time, by pulling the extension rod 25 and rotating it thirty degrees, the extension rod 25 drives the extension tube 21, and the special-shaped push block 23 provided at one end of the outer wall of the extension tube 21 pushes the traction frame 28 provided on one side of the outer wall of the insulating block 16, so that the traction frame 28 slides on the surface of the special-shaped push block 23, and drives the insulating block 16 to move upward, so that the conductive block 17 provided on the top The conductive terminal 18 is inserted between the terminal post 19 and the sleeve plate 20 (the conductive terminal 18, the terminal post 19 and the sleeve plate 20 are matching parts). Since the surface of the conductive terminal 18 has an arc, it can avoid the conductive terminal 18 from causing wear on the terminal post 19 and the sleeve plate 20 when it moves upward, so that the electricity enters the conductive terminal 18 through the terminal post 19 and the sleeve plate 20, and the electricity enters the connecting wire 35 through the conductive terminal 18. Since the bottom surface of the limiting plate 12 is also equipped with a moving box 13, and the other end of the connecting wire 35 is installed in the bottom conductive block 17, the electricity enters the next power device along the conductive terminal 18 set on the bottom surface. When the terminal of the power device is short-circuited, the electric current is extended by rotating. The extension rod 25 is extended so that the block provided at one end of its outer wall is freed from the restriction on the extension rod 25, and the return spring 22 provided at one end of the inner wall of the movable box 13 is used to reset the extension tube 21 and the extension rod 25, and the traction frame 28 is freed from the restriction of the special-shaped push block 23, so that the conductive terminal 18 is retracted between the support plates 15 under the influence of weight, and is disconnected from the terminal 19 and the sleeve plate 20. At this time, the operator uses a device such as an electric tester to detect the terminal 19 corresponding to the power device, which further solves the problem that in the use of traditional low-voltage distributed photovoltaic grid-connected cabinets, since the power devices usually use threaded terminals to fix the cables, not only the cable installation is cumbersome, but also the cable cross-entanglement is easily caused.

[0022] The adjusting assembly includes a connecting box 14 that is slidably connected to the inner wall of the moving box 13, and both ends of the top of the connecting box 14 are fixedly connected to a support plate 15, one side of the inner wall of the support plate 15 is slidably connected to an insulating block 16, and the inner wall of the insulating block 16 is fixedly connected to a conductive block 17, the top of the conductive block 17 is fixedly connected to a conductive terminal 18, and the top of the conductive terminal 18 is clamped with a terminal post 19, one side of the outer wall of the terminal post 19 is threadedly connected to a sleeve plate 20, and the top of the sleeve plate 20 is fixedly connected to the bottom of the current transformer 9, one side of the inner wall of the conductive block 17 is fixedly connected to a connecting terminal 34, and the outer wall of the connecting terminal 34 is plugged with a connecting wire 35, and one end of the outer wall of the connecting wire 35 is slidably connected to one end of the inner cavity of the moving box 13, the connecting assembly includes an extension tube 21 that is slidably connected to one side of the inner wall of the connecting box 14, and the outer wall of the extension tube 21 is overlapped with a return spring 22, and one end of the return spring 22 is fixedly connected to one side of the inner wall of the connecting box 14, the extension tube The outer wall of the extension tube 21 is fixedly connected to one end of the return spring 22 with a special-shaped push block 23, and both sides of the outer wall of the special-shaped push block 23 are slidably connected to the inner wall of the support plate 15. The inner wall of the extension tube 21 is provided with a limiting groove 24, and the inner wall of the limiting groove 24 is slidably connected to an extension rod 25, and one end of the outer wall of the extension rod 25 is slidably connected to one side of the inner wall of the moving box 13. The reset assembly includes an elastic reset box 26 fixedly connected to the inner wall of the support plate 15 near the insulating block 16, and the elastic reset box 26 The inner wall of the movable box 13 is slidably connected to a slide rod 27, and one end of the slide rod 27 is fixedly connected to a traction frame 28, one side of the outer wall of the traction frame 28 is fixedly connected to the bottom of one side of the outer wall of the insulating block 16, and the side of the outer wall of the traction frame 28 away from the insulating block 16 is slidably connected to the outer wall of the special-shaped push block 23, and the fixed component includes a plurality of card slots 32 opened on both sides of the outer wall of the movable box 13, and the inner wall of the card slot 32 is clamped with a limit block 33, and one end of the outer wall of the limit block 33 is rotatably connected to the outer wall of the support plate 15.

[0023] During operation, a connection box 14 is provided on the inner wall of the mobile box 13, and support plates 15 are provided at both ends of the top of the connection box 14. Since the positions of the wiring terminals of the power devices are different, the connection box 14 is moved to a suitable position in the mobile box 13 by sliding, and the limit block 33 provided at one end of the outer wall of the support plate 15 is moved, so that one end of the limit block 33 is embedded in the card slot 32 provided on the outer wall of the mobile box 13, and the mobile box 13 is fixed. Then, according to the position of the card slot 32 embedded by the limit block 33, an extension tube 21 is provided on one side of the inner wall of the connection box 14, a limit groove 24 is provided on the inner wall of the extension tube 21, and a plurality of grooves are provided on the inner wall of the limit groove 24, and the distance between the grooves and the distance between the card slot 32 and the card slot 3 2 corresponds to the distance between them. Taking the movement of the connecting box 14 to one end of the inner wall of the moving box 13 as an example, by rotating the extension rod 25 and rotating it clockwise by ninety degrees, one end of the extension rod 25 is rotated in the limit groove 24, and the stopper provided at one end of the extension rod 25 passes through the groove provided on the inner wall of the limit groove 24 and moves toward one end of its inner wall until one side of the outer wall of the connecting box 14 is in contact with the inner wall of the moving box 13. At this time, the extension rod 25 is rotated and rotated counterclockwise by ninety degrees so that the stopper provided at one end is disengaged from the groove and is in the annular groove provided in the limit groove 24. Subsequently, the extension rod 25 is pulled so that the outer wall of the extension rod 25 is away from the block provided at one end of the extension tube 21 and passes through the moving box 13, and the extension tube 21 is pulled to move in the connecting box 14, so that the extension tube 21 squeezes the return spring 22 provided on one side of the inner wall of the connection box 14, so that the extension tube 21 drives the outer wall away from the special-shaped push block 23 provided on one end of the return spring 22 to slide in the support plate 15. Since an insulating block 16 is provided on one side of the inner wall of the support plate 15, and a traction frame 28 is provided on one side of the outer wall of the insulating block 16, when the special-shaped push block 23 moves continuously, its inclined surface continuously pushes the traction frame 28, so that the traction frame 28 drives the insulating block 16 to move continuously upward. By providing a conductive block 17 on the inner wall of the insulating block 16 and providing a conductive terminal 18 on the top of the conductive block 17, the conductive terminal 18 is inserted between the terminal 19 and the sleeve plate 20 during the process of continuously moving upward, so that the inner wall of the electrical device is connected to the electrical device. The current flows along the conductive terminal 18 into the conductive block 17. Since a connecting terminal 34 is provided on one side of the inner wall of the conductive block 17, and a connecting wire 35 is installed on the outer wall of the connecting terminal 34, the current flows along the connecting terminal 34 into the connecting wire 35 and is transmitted through the connecting wire 35. At this time, the extension rod 25 is rotated again and rotated clockwise by 30 degrees, and the extension rod 25 is fixed with the clamping block. When the terminal of the electrical device is damaged, the extension rod 25 is rotated and rotated counterclockwise by 30 degrees, so that the clamping block and the extension rod 25 are retracted into the movable box 13 under the action of the rebound force of the reset spring 22, and one end of the extension tube 21 is fitted with one side of the inner wall of the connecting box 14. At this time, the traction frame 28 is freed from the restriction of the special-shaped push block 23.The elastic reset box 26 provided on the inner wall of the support plate 15 near the side of the insulating block 16 is used to pull the sliding rods 27 provided on the two ends of the outer wall of the traction frame 28, so that the traction frame 28 drives the insulating block 16 to move downward in the support plate 15, and the conductive terminal 18 is separated from the contact with the terminal 19 and the sleeve plate 20, thereby achieving power off. When it is necessary to remove dust and clean the grid cabinet, the above operation is repeated to achieve rapid disassembly of the cables. Subsequently, the limit plates 12 with several movable boxes 13 installed are taken out in turn, so that only the mounting frame 3, mounting plate 4 and limit box 11 are retained in the grid main body 1. Subsequently, the grid main body 1 and the removed limit plates 12 and movable boxes 13 are sprayed and cleaned with an air gun. This further solves the problem that during the use of traditional low-voltage distributed photovoltaic grid cabinets, due to the large number of devices in the grid cabinet and the clutter of cables, subsequent maintenance or dust removal of the grid cabinet is inconvenient.

[0024] The cooling component includes a micro fan 29 fixedly connected to one end of the top of the support plate 15, and a diversion hose 30 is fixedly connected to both ends of one side of the outer wall of the micro fan 29, and one end of the diversion hose 30 is fixedly connected to an exhauster 31, and the bottom of the exhauster 31 is fixedly connected to the end of the top of the support plate 15 away from the micro fan 29.

[0025] During operation, a micro fan 29 is set at one end of the top of the support plate 15, and a diverter hose 30 is set at both ends of one side of the outer wall of the micro fan 29, so that the diverter hose 30 is used to send air into the exhauster 31 set at one end, so that the air discharged by the exhauster 31 is blown to the connection between the conductive terminal 18 and the terminal post 19 and the sleeve plate 20, and cools it down, so as to avoid the problem of high temperature at the terminal connection, which may cause damage.

[0026] The following is a detailed description of the working principle of the low-voltage distributed photovoltaic grid-connected cabinet.

[0027] like Figures 1-10As shown, by pulling open the door panels 2 provided on both sides of the outer wall of the grid-connected main body 1 and fixing the mounting plate 4 inside the grid-connected main body 1, the circuit breaker 5, the anti-islanding protection device 6, the power quality online monitoring device 7, the power meter 8, the current transformer 9 and the network power meter 10 are then fixed on one side of the mounting plate 4, and then a number of mounting racks 3 are respectively installed between the power devices, and the limit boxes 11 are fixed between the mounting racks 3. Then, according to the number of terminals of the power devices, the same number of movable boxes 13 are respectively installed on the front and back sides of the limit plates 12, and the limit plates 12 with the movable boxes 13 installed are inserted into the limit boxes 11. At this time, the operator adjusts the movable box 13 so that the connection box 14 provided on the inner wall is aligned with the power The terminal of the device is then positioned at the position where the limit blocks 33 provided on both sides of the outer wall of the support plate 15 are pressed, so that one end of the limit block 33 is embedded in the card slot 32 provided on both sides of the outer wall of the movable box 13, and the connection box 14 is fixed. By providing an insulating block 16 on one side of the inner wall of the support plate 15, one end of the connecting wire 35 is inserted into the conductive block 17 provided on the inner wall of the insulating block 16. At this time, by pulling the extension rod 25 and rotating it thirty degrees, the extension rod 25 drives the extension tube 21, and the special-shaped push block 23 provided at one end of the outer wall of the extension tube 21 pushes the traction frame 28 provided on one side of the outer wall of the insulating block 16, so that the traction frame 28 slides on the surface of the special-shaped push block 23, and drives the insulating block 16 to move upward, so that the conductive block provided on the top of the conductive block 17 The electric terminal 18 is inserted between the terminal 19 and the sleeve 20 (the conductive terminal 18, the terminal 19 and the sleeve 20 are matching parts). Since the surface of the conductive terminal 18 has an arc, it can avoid the conductive terminal 18 from causing wear on the terminal 19 and the sleeve 20 when it moves upward, so that the electricity enters the conductive terminal 18 through the terminal 19 and the sleeve 20, and the electricity enters the connecting wire 35 through the conductive terminal 18. Since the bottom surface of the limiting plate 12 is also equipped with a moving box 13, and the other end of the connecting wire 35 is installed in the bottom conductive block 17, the electricity enters the next power device along the conductive terminal 18 set on the bottom surface. When the terminal of the power device is short-circuited, it is extended by rotating. Rod 25, so that the block set at one end of its outer wall is free from the restriction on the extension rod 25, and the return spring 22 set at one end of the inner wall of the moving box 13 is used to reset the extension tube 21 and the extension rod 25, and the traction frame 28 loses the restriction of the special-shaped push block 23, so that the conductive terminal 18 is retracted between the support plates 15 under the influence of weight, and is disconnected from the terminal 19 and the sleeve plate 20. At this time, the operator uses a device such as a tester to detect the terminal 19 corresponding to the power device, which further solves the problem that in the use of traditional low-voltage distributed photovoltaic grid-connected cabinets, since the power device usually uses threaded terminals to fix the cables, not only makes the cable installation more cumbersome, but also easily causes the cables to be cross-entangled.

[0028] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made based on the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A low-voltage distributed photovoltaic grid-connected cabinet, characterized by: Including the grid-connected entity (1), Connecting components, used to connect terminals between devices; Splicing components are used to install the spliced ​​components in the grid cabinet and support the connected components; An adjusting component, used for adjusting the position of the connecting component according to the different positions of the terminals; Reset component, used to separate the device terminal from the cable; Cooling components, used to cool the connection points between equipment terminals and cables; The fixing component is used to fix the connecting component moved to a suitable position.

2. A low-voltage distributed photovoltaic grid-connected cabinet according to claim 1, characterized in that: Door panels (2) are rotatably connected to both sides of the outer wall of the grid-connected main body (1), and a mounting frame (3) is slidably connected to the inner wall of the grid-connected main body (1), a mounting plate (4) is fixedly connected to one side of the outer wall of the mounting frame (3), and a circuit breaker (5), an anti-islanding protection device (6), an online power quality monitoring device (7), an electric energy meter (8), a current transformer (9), and a network power meter (10) are installed on one side of the outer wall of the mounting plate (4).

3. A low-voltage distributed photovoltaic grid-connected cabinet according to claim 2, characterized in that: The splicing assembly comprises a plurality of limit boxes (11) fixedly connected to the inner wall of the mounting frame (3), wherein the inner wall of the limit box (11) is slidably connected to the limit plate (12), and the top of the limit plate (12) is slidably connected to the moving box (13).

4. A low-voltage distributed photovoltaic grid-connected cabinet according to claim 3, characterized in that: The adjustment assembly includes a connection box (14) slidably connected to the inner wall of the moving box (13), and both ends of the top of the connection box (14) are fixedly connected to a support plate (15), one side of the inner wall of the support plate (15) is slidably connected to an insulating block (16), and the inner wall of the insulating block (16) is fixedly connected to a conductive block (17), the top of the conductive block (17) is fixedly connected to a conductive terminal (18), and the top of the conductive terminal (18) is clamped with a terminal (19), one side of the outer wall of the terminal (19) is threadedly connected to a sleeve plate (20), and the top of the sleeve plate (20) is fixedly connected to the bottom of the current transformer (9).

5. The low-voltage distributed photovoltaic grid-connected cabinet according to claim 4, characterized in that: The connecting assembly comprises an extension tube (21) slidably connected to one side of the inner wall of the connecting box (14), and the outer wall of the extension tube (21) is overlapped with a return spring (22), and one end of the return spring (22) is fixedly connected to one side of the inner wall of the connecting box (14), and the end of the outer wall of the extension tube (21) away from the return spring (22) is fixedly connected to a special-shaped push block (23), and both sides of the outer wall of the special-shaped push block (23) are slidably connected to the inner wall of the support plate (15).

6. The low-voltage distributed photovoltaic grid-connected cabinet according to claim 5, characterized in that: The inner wall of the extension tube (21) is provided with a limiting groove (24), and the inner wall of the limiting groove (24) is slidably connected to an extension rod (25), while one end of the outer wall of the extension rod (25) is slidably connected to one side of the inner wall of the moving box (13).

7. The low-voltage distributed photovoltaic grid-connected cabinet according to claim 6, characterized in that: The reset assembly includes an elastic reset box (26) fixedly connected to the inner wall of the support plate (15) near the insulating block (16), and the inner wall of the elastic reset box (26) is slidably connected to a slide rod (27), and one end of the slide rod (27) is fixedly connected to a traction frame (28), one side of the outer wall of the traction frame (28) is fixedly connected to the bottom of one side of the outer wall of the insulating block (16), and the side of the outer wall of the traction frame (28) away from the insulating block (16) is slidably connected to the outer wall of the special-shaped push block (23).

8. The low-voltage distributed photovoltaic grid-connected cabinet according to claim 7, characterized in that: The cooling component includes a micro fan (29) fixedly connected to one end of the top of the support plate (15), and a diversion hose (30) is fixedly connected to both ends of one side of the outer wall of the micro fan (29), one end of the diversion hose (30) is fixedly connected to an exhauster (31), and the bottom of the exhauster (31) is fixedly connected to the end of the top of the support plate (15) away from the micro fan (29).

9. The low-voltage distributed photovoltaic grid-connected cabinet according to claim 8, characterized in that: The fixing assembly comprises a plurality of slots (32) provided on both sides of the outer wall of the movable box (13), wherein the inner walls of the slots (32) are engaged with the limit blocks (33), and one end of the outer wall of the limit blocks (33) is rotatably connected to the outer wall of the support plate (15).

10. The low-voltage distributed photovoltaic grid-connected cabinet according to claim 9, characterized in that: A connection terminal (34) is fixedly connected to one side of the inner wall of the conductive block (17), and a connection wire (35) is inserted into the outer wall of the connection terminal (34), and one end of the outer wall of the connection wire (35) is slidably connected to one end of the inner cavity of the movable box (13).

Images