A solar photovoltaic power station combiner box

Abstract

The utility model discloses a solar photovoltaic power station junction box, including a base, a lifting cylinder fixedly connected to the upper end surface of the base, a lifting assembly arranged on the lifting cylinder, a fixing plate arranged on the lifting assembly, a junction box body arranged on the fixing plate, a circuit assembly arranged on the junction box body, a plurality of heat dissipation assemblies arranged on the junction box body, a protective door arranged on the junction box body, and a plurality of fixing bolts arranged on the base. In the utility model, air convection can be formed in the junction box body, the heat dissipation effect can be improved, the probability of safety accidents can be reduced, and the height of the junction box body can be adjusted, which is convenient for users to inspect and repair, and improves the use experience and work efficiency of the staff.

Description

Technical Field

[0001] The utility model relates to the technical field of combiner boxes for solar photovoltaic power stations, in particular to a combiner box for solar photovoltaic power stations. Background Art

[0002] The combiner box is a wiring device that ensures the orderly connection and combiner function of photovoltaic modules in the photovoltaic power generation system. This device can ensure that the photovoltaic system is easy to cut off the circuit during maintenance and inspection, and reduce the scope of power outage when the photovoltaic system fails.

[0003] The existing solar photovoltaic power station junction box is generally installed in a relatively open location through a support rod. When a circuit in the junction box fails, the staff is required to climb a ladder to a suitable height for maintenance, which makes maintenance more difficult for the staff. In addition, the heat dissipation of the junction box is usually achieved by reserving ventilation holes. When there is no wind outside, this results in poor heat dissipation and poses a safety hazard.

[0004] To this end, we propose a solar photovoltaic power station combiner box to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a solar photovoltaic power station combiner box.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A solar photovoltaic power station junction box comprises a base, an upper end surface of the base is fixedly connected to a lifting cylinder, a lifting cylinder is provided on the lifting cylinder, a fixing plate is provided on the lifting assembly, a junction box body is provided on the fixing plate, a circuit assembly is provided on the junction box body, a plurality of heat dissipation assemblies are provided on the junction box body, a protective door is provided on the junction box body, and a plurality of fixing bolts are provided on the base.

[0008] Preferably, the lifting assembly includes a working chamber arranged on the lifting cylinder, a first rotating gear and a second rotating gear are rotatably connected to the inner wall of the working chamber, the first rotating gear and the second rotating gear are arranged in meshing with each other, a threaded rod is threadedly penetrated on the inner wall of the lifting cylinder on one side close to the base, one end of the threaded rod close to the base is fixedly connected to the second rotating gear, a lifting rod is threadedly connected to the threaded rod, the lifting rod is slidably connected in the lifting cylinder, the fixing plate is fixedly connected to the side wall of the lifting rod, a rotating machine is arranged on the base, and the output end of the rotating machine rotates through the lifting cylinder and is fixedly connected to the first rotating gear.

[0009] Preferably, the heat dissipation assembly includes an air blowing chamber arranged on the junction box body, a plurality of vents are arranged on a side wall of the air blowing chamber close to the base, air blowing fans are arranged on the inner walls of the plurality of vents, a plurality of air blowing holes are arranged on an end surface of the air blowing chamber away from the base, an air outlet is arranged on an end surface of the junction box body away from the base, and a plurality of ventilation fans are arranged on the inner wall of the air outlet.

[0010] Preferably, a plurality of support assemblies are provided on the base, and the support assemblies include two U-shaped blocks respectively fixedly connected to the base and the lifting rod, and telescopic rods are rotatably connected to the two U-shaped blocks, and nuts are provided on the telescopic rods.

[0011] Preferably, a rainproof canopy is fixedly connected to one end surface of the lifting rod away from the base, and the end surface of the rainproof canopy away from the base is conical.

[0012] Preferably, a limiting assembly is provided on the lifting cylinder, and the limiting assembly includes a limiting groove provided on the inner wall of the lifting cylinder, and a plurality of limiting blocks are fixedly connected to the side wall of the lifting rod, and the plurality of limiting blocks are respectively slidably connected in the plurality of limiting grooves.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The air blowing fan in the utility model blows external air into the combiner box body through the air blowing chamber, and at the same time the ventilation fan starts working, and the ventilation fan discharges the air in the combiner box body out of the device, thus forming air convection in the combiner box body, improving the heat dissipation effect, and reducing the probability of safety accidents. When the staff needs to check the circuit components in the combiner box body, the motor is started, thus the combiner box body can be lowered, which is convenient for users to repair, thereby improving the use experience of the staff and improving the work efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a solar photovoltaic power station combiner box proposed by the utility model;

[0016] Figure 2 This is a front structural cross-sectional view of a solar photovoltaic power station combiner box proposed by the utility model;

[0017] Figure 3 for Figure 2 A magnified view of the structure in the middle.

[0018] In the figure: 1 base, 2 lifting cylinder, 3 fixing plate, 4 junction box body, 5 circuit assembly, 6 protection door, 7 fixing bolt, 8 working chamber, 9 first rotating gear, 10 second rotating gear, 11 threaded rod, 12 lifting rod, 13 blowing chamber, 14 ventilation fan, 15 blowing hole, 16 U-shaped block, 17 telescopic rod, 18 rainproof shed, 19 rotating machine, 20 limit groove, 21 limit block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-Figure 3 A solar photovoltaic power station junction box includes a base 1, a lifting cylinder 2 is fixedly connected to the upper end surface of the base 1, a lifting assembly is arranged on the lifting cylinder 2, a fixing plate 3 is arranged on the lifting assembly, a junction box body 4 is arranged on the fixing plate 3, a circuit assembly 5 is arranged on the junction box body 4, the circuit assembly 5 is a prior art, including components such as diodes and fuses, which will not be repeated here, a plurality of heat dissipation components are arranged on the junction box body 4, a protective door 6 is arranged on the junction box body 4, a plurality of fixing bolts 7 are arranged on the base 1, the lifting assembly includes a working chamber 8 arranged on the lifting cylinder 2, a first rotating gear 9 and a second rotating gear 10 are rotatably connected on the inner wall of the working chamber 8, the first rotating gear 9 and the second rotating gear 10 are meshed with each other, a threaded rod 11 is threadedly penetrated on the inner wall of the lifting cylinder 2 on one side close to the base 1, and one end of the threaded rod 11 close to the base 1 is fixedly connected to the second rotating gear 10;

[0021] The threaded rod 11 is threadedly connected with a lifting rod 12, and the lifting rod 12 is slidably connected in the lifting cylinder 2. The fixed plate 3 is fixedly connected to the side wall of the lifting rod 12. A rotating machine 19 is arranged on the base 1. The output end of the rotating machine 19 rotates through the lifting cylinder 2 and is fixedly connected to the first rotating gear 9. A plurality of supporting components are arranged on the base 1. The supporting components include two U-shaped blocks 16 respectively fixedly connected to the base 1 and the lifting rod 12. The two U-shaped blocks 16 are rotatably connected with a telescopic rod 17, and the telescopic rod 17 is provided with a threaded The support assembly is provided to support and fix the lifting rod 12, thereby preventing the lifting rod 12 from being broken due to uneven force. A limiting assembly is provided on the lifting cylinder 2, and the limiting assembly includes a limiting groove 20 provided on the inner wall of the lifting cylinder 2. A plurality of limiting blocks 21 are fixedly connected to the side wall of the lifting rod 12, and the plurality of limiting blocks 21 are respectively slidably connected in the plurality of limiting grooves 20. The setting of the limiting assembly can limit the rotation of the lifting rod 12, thereby ensuring that the lifting rod 12 moves in the vertical direction, while also preventing the lifting rod 12 from falling out of the lifting cylinder 2.

[0022] A rainproof canopy 18 is fixedly connected to the end face of the lifting rod 12 away from the base 1. The end face of the rainproof canopy 18 away from the base 1 is conical. The setting of the rainproof canopy 18 can prevent rainwater from entering the junction box body 4 and prevent the circuit component 5 from being damaged. The heat dissipation component includes a blowing chamber 13 arranged on the junction box body 4. A plurality of ventilation holes are arranged on the side wall of the blowing chamber 13 close to the base 1, and blowing fans are arranged on the inner walls of the plurality of ventilation holes. A plurality of blowing holes 15 are arranged on the end face of the blowing chamber 13 away from the base 1, and an air outlet is arranged on the end face of the junction box body 4 away from the base 1, and a plurality of ventilation fans 14 are arranged on the inner wall of the air outlet.

[0023] During the use of the utility model, the blowing fan conveys the outside air into the blowing chamber 13, and then blows the air into the junction box body 4 through the blowing holes 15 on the blowing chamber 13. At the same time, the ventilation fan 14 starts to work, and the ventilation fan 14 exhausts the air in the junction box body 4 out of the device, so that air convection can be formed in the junction box body 4, the heat dissipation effect is improved, and the probability of safety accidents is reduced. When the staff needs to check the circuit components 5 in the junction box body 4, the rotating machine 19 is started at this time, and the output end of the rotating machine 19 will drive the first rotating gear 9 to rotate, and the first rotating gear 9 It will drive the second rotating gear 10 to rotate, and the second rotating gear 10 will drive the threaded rod 11 to rotate. At this time, the limit block 21 located on the lifting rod 12 will limit the rotation of the lifting rod 12, so that the lifting rod 12 can be moved, so that the junction box body 4 can be lowered, which is convenient for users to repair and improves the user experience and work efficiency of the staff. When the maintenance is completed, the rotating machine 19 drives the lifting rod 12 to reset, and the telescopic rod 17 will rotate on the U-shaped block 16. Then the user pinches the nut, so that the telescopic rod 17 can support the lifting rod 12 to prevent the lifting rod 12 from being broken due to uneven force.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A solar photovoltaic power station combiner box, comprising a base (1), characterized in that: The upper end surface of the base (1) is fixedly connected to a lifting cylinder (2), the lifting cylinder (2) is provided with a lifting assembly, the lifting assembly is provided with a fixing plate (3), a junction box body (4) is provided on the fixing plate (3), a circuit assembly (5) is provided on the junction box body (4), a plurality of heat dissipation assemblies are provided on the junction box body (4), a protective door (6) is provided on the junction box body (4), and a plurality of fixing bolts (7) are provided on the base (1).

2. A solar photovoltaic power station combiner box according to claim 1, characterized in that: The lifting assembly comprises a working chamber (8) arranged on the lifting cylinder (2), a first rotating gear (9) and a second rotating gear (10) being rotatably connected on the inner wall of the working chamber (8), the first rotating gear (9) and the second rotating gear (10) being arranged in meshing relationship with each other, a threaded rod (11) being threadedly penetrated on the inner wall of a side of the lifting cylinder (2) close to the base (1), one end of the threaded rod (11) close to the base (1) being fixedly connected to the second rotating gear (10), a lifting rod (12) being threadedly connected on the threaded rod (11), the lifting rod (12) being slidably connected in the lifting cylinder (2), the fixing plate (3) being fixedly connected to the side wall of the lifting rod (12), a rotating machine (19) being arranged on the base (1), the output end of the rotating machine (19) being rotatably penetrated through the lifting cylinder (2) and fixedly connected to the first rotating gear (9).

3. A solar photovoltaic power station combiner box according to claim 1, characterized in that: The heat dissipation component comprises an air blowing cavity (13) arranged on a combiner box body (4); a plurality of ventilation openings are arranged on a side wall of the air blowing cavity (13) close to the base (1); air blowing fans are arranged on the inner walls of the plurality of ventilation openings; a plurality of air blowing holes (15) are arranged on an end surface of the air blowing cavity (13) away from the base (1); an air outlet is arranged on an end surface of the combiner box body (4) away from the base (1); and a plurality of ventilation fans (14) are arranged on the inner wall of the air outlet.

4. A solar photovoltaic power station combiner box according to claim 2, characterized in that: A plurality of support components are arranged on the base (1), and the support components include two U-shaped blocks (16) respectively fixedly connected to the base (1) and the lifting rod (12), and the two U-shaped blocks (16) are rotatably connected to a telescopic rod (17), and a nut is arranged on the telescopic rod (17).

5. A solar photovoltaic power station combiner box according to claim 2, characterized in that: A rainproof canopy (18) is fixedly connected to one end surface of the lifting rod (12) away from the base (1); and one end surface of the rainproof canopy (18) away from the base (1) is arranged in a conical shape.

6. A solar photovoltaic power station combiner box according to claim 2, characterized in that: The lifting cylinder (2) is provided with a limit assembly, the limit assembly comprising a limit groove (20) provided on the inner wall of the lifting cylinder (2), a plurality of limit blocks (21) are fixedly connected to the side wall of the lifting rod (12), and the plurality of limit blocks (21) are respectively slidably connected in the plurality of limit grooves (20).

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