Combiner box incoming cable protection device and combiner box

Abstract

This utility model relates to the field of power equipment technology and discloses a combiner box incoming cable protection device and a combiner box. The combiner box incoming cable protection device includes side plates and magnetic suction components. At least two side plates are mutually enclosed to form a receiving cavity, which is suitable for accommodating the combiner box incoming cable. Adjacent side plates are detachably connected. The top of the side plate is suitable for abutting against the bottom of the combiner box, and the bottom of the side plate is suitable for abutting against the building foundation. The magnetic suction component is disposed on the top of the side plate and is suitable for magnetically connecting to the bottom of the combiner box. This utility model encloses the receiving cavity between at least two side plates with magnetic suction components on the top. The side plates can protect the incoming cable in the receiving cavity, avoiding the incoming cable from being exposed to the external environment and threatened by mechanical damage, ultraviolet radiation, rainwater erosion, high and low temperature changes, thereby improving the safety of the incoming cable and the combiner box.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically to a combiner box incoming cable protection device and a combiner box. Background Technology

[0002] In a photovoltaic (PV) power generation system, the combiner box is a key device connecting the PV modules and the inverter. Its incoming cable is responsible for transmitting the current generated by the PV modules, and is extremely important for the stable operation of the entire power generation system.

[0003] In existing technologies, the incoming cables at the bottom of the combiner box are usually exposed to the outside. In the complex outdoor environment, these cables face threats such as mechanical damage, ultraviolet radiation, rainwater erosion, and extreme temperature fluctuations. Furthermore, damage to the incoming cables can not only lead to line faults and reduced power generation efficiency, but may even cause electrical fires, endangering personnel safety and the normal operation of equipment. Utility Model Content

[0004] In view of this, the present invention provides a combiner box incoming cable protection device and combiner box to solve the problem in the prior art where the combiner box incoming cable is exposed to the outside, which easily leads to cable damage.

[0005] In a first aspect, this utility model provides a combiner box incoming cable protection device, including side plates and magnetic suction components. At least two side plates are mutually enclosed to form a receiving cavity, which is suitable for accommodating the combiner box incoming cable. Adjacent side plates are detachably connected. The top of the side plate is suitable for abutting against the bottom of the combiner box, and the bottom of the side plate is suitable for abutting against the building foundation. The magnetic suction component is disposed on the top of the side plate and is suitable for magnetically connecting with the bottom of the combiner box.

[0006] Beneficial effects: This utility model encloses a cavity between at least two side plates with magnetic suction at the top. The side plates can protect the incoming cable in the cavity, preventing the incoming cable from being exposed to the external environment and threatened by mechanical damage, ultraviolet radiation, rainwater erosion, high and low temperature changes, thereby improving the safety of the incoming cable and junction box.

[0007] In one alternative embodiment, a latch is provided on the side of the side panel, and latches on adjacent side panels are detachably connected.

[0008] Beneficial effects: The adjacent side panels of this utility model are connected by a locking mechanism, which facilitates the assembly and disassembly of the side panels.

[0009] In one alternative embodiment, the latch includes a fixed part and a movable part. The fixed part is disposed on the side of the side plate, and the movable part is disposed on the side of the side plate adjacent to the fixed part. The movable part and the fixed part are detachably connected.

[0010] Beneficial effects: This utility model adopts a structure that detachably connects the fixed part and the movable part on the adjacent side plates, which facilitates the assembly and disassembly of the side plates.

[0011] In one alternative embodiment, the top of the side panel is provided with a mounting groove, and the magnetic component is installed in the mounting groove.

[0012] Beneficial effects: This utility model has an installation groove on the top of the side plate, in which the magnetic component is installed. The top of the magnetic component is flush with the top of the side plate, thereby ensuring the sealing between the top of the side plate and the junction box.

[0013] In one alternative implementation, a viewing window is provided on one of the side panels.

[0014] Beneficial effects: This utility model has a viewing window on the side plate, which makes it easy for staff to observe the condition of the incoming cable in the installation cavity.

[0015] In one alternative implementation, one of the side panels is provided with an access door, which is movably connected to the side panel.

[0016] Beneficial effects: This utility model has an inspection door on the side plate, so that when the staff is carrying out maintenance, there is no need to disassemble the entire device. The incoming cable of the combiner box can be inspected through the inspection door. It has the advantages of simple structure and convenient operation.

[0017] In one alternative embodiment, the side plates are L-shaped, and the two side plates enclose each other to form a receiving cavity.

[0018] Beneficial effects: This utility model sets the side plates in an L-shape, requiring only two side plates to enclose the cavity, reducing the number of parts in the combiner box incoming cable protection device, thereby reducing the workload of disassembling and assembling the side plates. It has the advantages of simple structure and convenient disassembly and assembly.

[0019] In one alternative embodiment, the side plate includes a first plate and a second plate, a magnetic chuck is disposed on the top of the first plate, and the second plate is vertically and movably connected to the first plate.

[0020] Beneficial effects: In this utility model, the first plate and the second plate are vertically and movably connected. By adjusting the distance between the first plate and the second plate, the cables at the bottom of the combiner box at different heights can be protected.

[0021] In one optional embodiment, a mounting cavity is provided at the bottom of the first plate or the top of the second plate, and the top of the second plate or the bottom of the first plate is movably mounted in the mounting cavity.

[0022] Beneficial effects: In this utility model, the first plate and the second plate are movably connected through the mounting cavity. By adjusting the length of the first plate or the second plate extending out of the mounting cavity, the protection distance between the first plate and the second plate can be adjusted, thereby protecting the cables at the bottom of the combiner box at different heights.

[0023] Secondly, this utility model also provides a combiner box, including a mounting frame, a box body, an incoming cable, electrical components, and the aforementioned combiner box incoming cable protection device. The mounting frame is suitable for installation on a building foundation, the box body is installed on the mounting frame, the bottom of the box body has an opening, one end of the incoming cable passes through the opening, the electrical components are installed inside the box body, the electrical components are connected to the incoming cable, and the combiner box incoming cable protection device is detachably installed at the bottom of the box body.

[0024] Since the combiner box in this utility model includes a combiner box inlet cable protection device, which has the same effect as the combiner box inlet cable protection device, it will not be described again here. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a front view of a junction box according to an embodiment of the present utility model;

[0027] Figure 2 This is a top view of a junction box incoming cable protection device according to an embodiment of the present utility model;

[0028] Figure 3 This is a front view of a side plate in a junction box incoming cable protection device according to an embodiment of the present utility model;

[0029] Figure 4 This is a front view of the side plate in another embodiment of the combiner box incoming cable protection device of this utility model;

[0030] Figure 5 This is a top view of a side plate in a junction box incoming cable protection device according to an embodiment of the present utility model;

[0031] Figure 6 This is a front view of the first plate and the second plate in a junction box incoming cable protection device according to an embodiment of the present utility model;

[0032] Figure 7This is a front view of the first plate and the second plate in another embodiment of the combiner box incoming cable protection device of this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100. Combiner box incoming cable protection device;

[0035] 1. Side panel; 11. Viewing window; 12. Inspection door; 13. First panel; 14. Second panel;

[0036] 2. Magnetic components;

[0037] 3. Lock; 31. Fixed part; 32. Moving part; 321. Mounting base; 322. Buckle;

[0038] 4. Mounting bracket;

[0039] 5. Box body;

[0040] 6. Incoming cable;

[0041] 7. Electrical components;

[0042] 8. Building foundation. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0044] In related technologies, the following problems typically exist with incoming cables exposed outside the combiner box;

[0045] Cables are vulnerable to damage: In the complex outdoor natural environment, incoming cables face threats such as mechanical damage, ultraviolet radiation, rainwater erosion, and extreme temperature changes. Mechanical damage may come from accidental bumps during construction or animal bites; ultraviolet radiation accelerates the aging of the cable sheath and reduces insulation performance; rainwater infiltration can easily cause short circuits; extreme temperature changes cause the cable material to expand and contract, affecting the stability of the internal structure.

[0046] Safety hazards: If the incoming cable is damaged, it will not only cause line faults and reduced power generation efficiency, but may even cause electrical fires, endangering personnel safety and normal equipment operation.

[0047] High maintenance costs: Troubleshooting and repairing cable faults is time-consuming and labor-intensive, involving specialized technicians and equipment, thus increasing maintenance costs. Frequent faults can also affect power generation revenue.

[0048] The following is combined with Figures 1 to 7 The following describes embodiments of the present invention.

[0049] According to embodiments of the present invention, on the one hand, such as Figures 1 to 7 As shown, a combiner box incoming cable protection device 100 is provided, including a side plate 1 and a magnetic member 2. At least two side plates 1 are mutually enclosed to form a receiving cavity, which is suitable for accommodating the combiner box incoming cable 6. Adjacent side plates 1 are detachably connected. The top of the side plate 1 is suitable for abutting against the bottom of the combiner box, and the bottom of the side plate 1 is suitable for abutting against the building foundation 8. The magnetic member 2 is disposed on the top of the side plate 1 and is suitable for magnetically connecting with the bottom of the combiner box.

[0050] Specifically, in this embodiment, the number of side plates 1 is not specifically limited. For example, such as Figure 2 As shown, in this embodiment, four side plates 1 are provided. The side plates 1 are rectangular plate structures. The side plates 1 are vertically arranged between the bottom of the combiner box and the building base. The four side plates 1 form a cuboid cavity. The cables at the bottom of the combiner box are located in the cavity. The height of the side plates 1 matches the height between the combiner box and the building base 8. The width of the side plates 1 is not greater than the bottom dimension of the combiner box.

[0051] In this embodiment, the material of the side plate 1 is not specifically limited. For example, in this embodiment, the side plate 1 is made of steel plate and the outer surface of the side plate 1 is coated with an anti-corrosion coating.

[0052] In this embodiment, the magnetic element 2 is not specifically limited. For example, such as Figures 2 to 7 As shown, in this embodiment, the magnetic chuck 2 is a magnet. The magnetic chuck 2 is set on the top of the side plate 1. The magnetic chuck 2 can be attracted to the bottom of the iron junction box by magnetic force.

[0053] This utility model encloses a cavity between at least two side plates 1 with magnetic suction elements 2 on the top. The side plates 1 can protect the incoming cable 6 in the cavity, preventing the incoming cable 6 from being exposed to the external environment and threatened by mechanical damage, ultraviolet radiation, rainwater erosion, high and low temperature changes, thereby improving the safety of the cable and junction box.

[0054] In one embodiment, such as Figure 2 As shown, a latch 3 is provided on the side of the side plate 1, and the latches 3 on adjacent side plates 1 can be detachably connected.

[0055] Specifically, in this embodiment, a latch 3 is provided at the side edge of the side plate 1, and adjacent sides are detachably connected by the latch 3. When installing the side plate 1, first connect the magnetic suction piece 2 at the top of the side plate 1 to the bottom of the junction box magnetically, then adjust the side plate 1 to a vertical state, and then connect the latches 3 on adjacent side plates 1 to each other, so that multiple side plates 1 are connected in sequence to form a closed receiving cavity.

[0056] The adjacent side plates 1 of this utility model are connected by a latch 3, which facilitates the assembly and disassembly of the side plates 1.

[0057] In one embodiment, such as Figure 2 and Figure 5 As shown, the latch 3 includes a fixed part 31 and a movable part 32. The fixed part 31 is disposed on the side of the side plate 1, and the movable part 32 is disposed on the side of the side plate 1 adjacent to the fixed part 31. The movable part 32 is detachably connected to the fixed part 31.

[0058] Specifically, in this embodiment, a fixed part 31 and a movable part 32 are respectively provided at the adjacent side edges of adjacent side plates 1. The fixed part 31 adopts a protrusion, and the movable part 32 includes a mounting base 321 and a buckle 322. The mounting base 321 is located on the side of the side plate 1, and two mounting holes are symmetrically provided on the mounting base 321. The buckle 322 is C-shaped, and both ends of the buckle 322 are movably installed in the mounting holes. The buckle 322 can be detachably connected to the protrusion. When the buckle 322 is engaged with the protrusion, the adjacent side plates 1 are connected to each other.

[0059] This utility model adopts a structure in which the fixed part 31 and the movable part 32 on the adjacent side plate 1 are detachably connected, which facilitates the assembly and disassembly of the side plate 1.

[0060] In one embodiment, such as Figure 2 , Figure 3 , Figures 5 to 7 As shown, the top of the side plate 1 is provided with a mounting groove, and the magnetic component 2 is installed in the mounting groove.

[0061] Specifically, in this embodiment, the top of the side plate 1 is provided with a mounting groove, the size of which matches the magnetic component 2. When the magnetic component 2 is installed in the mounting groove, the top of the magnetic component 2 is flush with the top of the side plate 1.

[0062] like Figure 4 As shown, in some other embodiments, the entire magnetic clasp 2 can also be installed on the top of the side plate 1.

[0063] This utility model provides an installation groove at the top of the side plate 1, and installs the magnetic suction component 2 in the installation groove. The top of the magnetic suction component 2 is flush with the top of the side plate 1, thereby ensuring the sealing between the top of the side plate 1 and the junction box.

[0064] In one embodiment, such as Figure 3 and Figure 4As shown, one of the side panels 1 has a viewing window 11.

[0065] Specifically, in this embodiment, a viewing window 11 is provided on one of the side panels 1, and a transparent plate is provided on the viewing window 11. Through the viewing window 11, the staff can observe the condition of the incoming cable 6 inside the side panel 1.

[0066] In this embodiment, the shape of the viewing window 11 is not specifically limited. For example, the viewing window 11 is rectangular, and the size of the transparent plate is slightly larger than the size of the viewing window 11. The transparent plate is installed on the side of the side plate 1 facing the incoming cable 6.

[0067] This utility model has a viewing window on the side plate 1, which makes it easy for staff to observe the condition of the incoming cable 6 in the installation cavity.

[0068] In one embodiment, such as Figure 3 and Figure 4 As shown, one of the side panels 1 is provided with an inspection door 12, which is movably connected to the side panel 1.

[0069] Specifically, in this embodiment, one of the side plates 1 is provided with an opening, and the inspection door 12 is installed on the opening by a hinge. By opening the inspection door 12, the staff can perform maintenance and repair work on the incoming cable 6 in the receiving cavity.

[0070] This utility model has an inspection door 12 on the side plate 1. When the staff is performing maintenance, there is no need to disassemble the entire device. The incoming cable 6 of the combiner box can be inspected through the inspection door 12. It has the advantages of simple structure and convenient operation.

[0071] In one embodiment, such as Figure 5 As shown, the side plate 1 is L-shaped, and the two side plates 1 enclose each other to form a receiving cavity.

[0072] Specifically, in this embodiment, the side plate 1 has an "L" shaped cross-section, and the two side plates 1 enclose each other to form a cubic cavity.

[0073] In this embodiment, the side plate 1 is made of a rectangular steel plate bent into an "L" shape.

[0074] This utility model sets the side plate 1 in an L-shape, and only two side plates 1 are needed to form a receiving cavity, which reduces the number of parts in the combiner box incoming cable protection device 100, thereby reducing the workload of disassembling and assembling the side plate 1. It has the advantages of simple structure and convenient disassembly and assembly.

[0075] In one embodiment, such as Figure 6 and Figure 7 As shown, the side plate 1 includes a first plate 13 and a second plate 14. The magnetic suction element 2 is disposed on the top of the first plate 13, and the second plate 14 is vertically and movably connected to the first plate 13.

[0076] Specifically, in this embodiment, the first plate 13 is located above the second plate 14, and the first plate 13 and the second plate 14 are movably connected. During installation, the magnetic suction piece 2 on the top of the first plate 13 is attracted to the bottom of the junction box, and then the second plate 14 is adjusted so that the bottom of the second plate 14 abuts against the building foundation 8.

[0077] In this invention, the first plate 13 and the second plate 14 are vertically and movably connected. By adjusting the distance between the first plate 13 and the second plate 14, the cables at the bottom of the combiner box at different heights can be protected.

[0078] In one embodiment, such as Figure 6 and Figure 7 As shown, a mounting cavity is provided at the bottom of the first plate 13 or the top of the second plate 14, and the top of the second plate 14 or the bottom of the first plate 13 is movably installed in the mounting cavity.

[0079] Specifically, such as Figure 6 As shown, in this embodiment, the bottom of the first plate 13 is provided with a mounting cavity, and the size of the second plate 14 matches the opening size of the mounting cavity. The top of the second plate 14 is movably inserted into the mounting cavity. When the magnetic suction member 2 on the top of the first plate 13 is magnetically connected to the bottom of the junction box, the second plate 14 can move freely relative to the first plate 13 in the vertical direction.

[0080] In some other embodiments, such as Figure 7 As shown, a mounting cavity can also be provided at the top of the second plate 14, and the bottom of the first plate 13 can be movably installed in the mounting cavity.

[0081] In this invention, the first plate 13 and the second plate 14 are movably connected through a mounting cavity. By adjusting the length of the first plate 13 or the second plate 14 extending into the mounting cavity, the protection distance between the first plate 13 and the second plate 14 can be adjusted, thereby protecting the cables at the bottom of the combiner box at different heights.

[0082] According to an embodiment of the present invention, on the other hand, as... Figure 1 As shown, a combiner box is also provided, including a mounting frame 4, a box body 5, an incoming cable 6, an electrical component 7, and the aforementioned combiner box incoming cable protection device 100. The mounting frame 4 is suitable for installation on a building foundation 8. The box body 5 is installed on the mounting frame 4. The bottom of the box body 5 is provided with an opening. One end of the incoming cable 6 passes through the opening. The electrical component 7 is installed inside the box body 5 and is connected to the incoming cable 6. The combiner box incoming cable protection device 100 is detachably installed at the bottom of the box body 5.

[0083] Specifically, in this embodiment, the mounting bracket 4 is installed on the building foundation 8, the box 5 is installed on the top of the mounting bracket 4, and the bottom of the box 5 is provided with an opening for the incoming cable 6 to pass through. One end of the incoming cable 6 extends into the lower part of the building foundation 8 and connects to the photovoltaic equipment, and the other end passes into the box 5 and connects to the electrical components 7 inside the box 5. The magnetic suction piece 2 on the top of the side plate 1 is magnetically attracted to the bottom of the box 5, and the adjacent side plates 1 are detachably connected by the latch 3. The bottom of the side plate 1 abuts against the building foundation 8.

[0084] In this embodiment, the housing 5 has a cubic structure with an internal cavity. The electrical component 7 is not specifically limited in this embodiment; for example, in this embodiment, the electrical component 7 is an inverter.

[0085] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A busway inlet cable protection device, characterized by, include: Side plate (1), at least two of the side plates (1) are mutually enclosed to form a receiving cavity, the receiving cavity is adapted to receive the incoming cable (6) of the combiner box, the adjacent side plates (1) are detachably connected, the top of the side plate (1) is adapted to abut against the bottom of the combiner box, and the bottom of the side plate (1) is adapted to abut against the building foundation (8); A magnetic suction component (2) is disposed on the top of the side plate (1) and is adapted to be magnetically connected to the bottom of the junction box.

2. The combiner box incoming cable protection device according to claim 1, characterized in that, The side plate (1) is provided with a buckle (3), and the buckles (3) on adjacent side plates (1) are detachably connected.

3. The combiner box incoming cable protection device according to claim 2, characterized in that, The latch (3) includes: A fixing part (31) is provided on the side of the side plate (1); The movable part (32) is disposed on the side of the side plate (1) adjacent to the fixed part (31), and the movable part (32) is detachably connected to the fixed part (31).

4. The combiner box incoming cable protection device according to claim 1, characterized in that, The side plate (1) has a mounting groove on its top, and the magnetic suction element (2) is installed in the mounting groove.

5. The combiner box incoming cable protection device according to claim 1, characterized in that, One of the side panels (1) is provided with a viewing window (11).

6. The combiner box incoming cable protection device according to claim 1, characterized in that, One of the side panels (1) is provided with an inspection door (12), which is movably connected to the side panel (1).

7. The combiner box incoming cable protection device according to claim 1, characterized in that, The side plate (1) is L-shaped, and the two side plates (1) enclose each other to form a receiving cavity.

8. The combiner box incoming cable protection device according to claim 1, characterized in that, The side plate (1) includes: The first plate (13) is provided with the magnetic suction element (2) disposed on the top of the first plate (13); The second plate (14) is vertically and movably connected to the first plate (13).

9. The combiner box incoming cable protection device according to claim 8, characterized in that, The bottom of the first plate (13) or the top of the second plate (14) is provided with a mounting cavity, and the top of the second plate (14) or the bottom of the first plate (13) is movably installed in the mounting cavity.

10. A junction box, characterized in that, include: Mounting bracket (4), said mounting bracket (4) being adapted to be installed on building foundation (8); Box (5), the box (5) is mounted on the mounting bracket (4), and the bottom of the box (5) is provided with an opening; An incoming cable (6) is inserted into the opening at one end; An electrical component (7) is installed inside the housing (5) and is connected to the incoming cable (6); The combiner box incoming cable protection device (100) according to any one of claims 1 to 9, wherein the combiner box incoming cable protection device (100) is detachably installed at the bottom of the box body (5).

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