Photovoltaic grid-connected box with wire hole sealing structure

Abstract

The utility model discloses a photovoltaic grid-connected box with a wire hole sealing structure, and relates to the technical field of photovoltaic power generation. The photovoltaic grid-connected box comprises a photovoltaic grid-connected box body, wire inlet and outlet holes, hole sealing assemblies and wire bunching assemblies, the bottom of the photovoltaic grid-connected box body is provided with a group of wire inlet and outlet holes with different apertures, an annular magnetic block is fixed on the outer ring of each wire inlet and outlet hole, and each annular magnetic block is magnetically connected with one hole sealing assembly. And a group of bunching assemblies which are annularly distributed are fixed on the peripheral side of the hole sealing assembly. The hole sealing assembly is composed of the left half sealing piece and the right half sealing piece, a proper number of arc-shaped foam plates in the left half sealing piece and the right half sealing piece can be torn off from inside to outside according to the thickness of a cable to be used in a matched mode, adjustability is high, the cable sealing device is suitable for sealing cables with different cable diameters, and the service life of the cable sealing device is prolonged. In addition, the wire inlet and outlet hole can be sealed through the hole sealing assembly, and the dustproof purpose is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic power generation, and particularly relates to a photovoltaic grid-connected box with a wire hole sealing structure. Background Art

[0002] The photovoltaic grid-connected box exists in the photovoltaic system as the total outlet of the photovoltaic power station. It is a power distribution device that connects the photovoltaic power station and the power grid. It can protect and measure the total amount of photovoltaic power generation. The existing photovoltaic grid-connected box is disclosed in the existing public literature, CN209786807U-a photovoltaic grid-connected box, which is publicly provided with a box body, the interior of the box body is configured to place electrical devices, and the box body is provided with inlet and outlet cable holes. Although the inlet and outlet cable holes are disclosed,

[0003] 1. In the existing photovoltaic grid-connected boxes, there are gaps in the inlet and outlet cable holes. After long-term use, dust can easily enter the photovoltaic grid-connected box through the gaps. Excessive dust accumulation in the photovoltaic grid-connected box is not only inconvenient to clean, but also affects the photovoltaic grid-connected box.

[0004] 2. In the existing photovoltaic grid-connected boxes, there is no cable bundle structure in the inlet and outlet cable holes, which makes it inconvenient to store cables. Utility Model Content

[0005] The purpose of the utility model is to provide a photovoltaic grid-connected box with a wire hole sealing structure. By arranging a hole sealing component and a wire bundle component, the problem of the existing photovoltaic grid-connected box that dust can easily enter the interior of the photovoltaic grid-connected box through the holes after long-term use, and the cable inlet and outlet holes do not have a wire bundle structure, making it inconvenient to store cables is solved.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a photovoltaic grid-connected box with a wire hole sealing structure, comprising a photovoltaic grid-connected box body, inlet and outlet wire holes, a hole sealing assembly and a wire bundle assembly. A group of inlet and outlet wire holes with different apertures are opened at the bottom of the photovoltaic grid-connected box body. An annular magnetic block is fixed to the outer ring of each inlet and outlet wire hole. A hole sealing assembly is magnetically connected to each annular magnetic block. The hole sealing assembly comprises a left half seal and a right half seal. Both the left half seal and the right half seal comprise an arc-shaped magnetic attraction plate and an arc-shaped foam plate. The inner ring of each arc-shaped magnetic attraction plate is fixed with a group of A decreasing arc-shaped foam plate, a group of annularly distributed wiring harness components are fixed on the surrounding side of the hole sealing component, the wiring harness component includes a seat plate, an L-shaped splint and a telescopic buckle, the seat plate is connected to the L-shaped splint, one side of the L-shaped splint is connected to the telescopic buckle, the seat plate and the L-shaped splint are limited by the telescopic buckle, the end of the L-shaped splint is fixed with an end plate, the inner side of the end plate is fixed with two symmetrically arranged springs, a through hole is opened on the end plate corresponding to the spring, the L-shaped splint crosses the through groove, and the two straight connecting rods on the seat plate cross the corresponding through holes on the end plate one by one.

[0008] Furthermore, the diameters of a group of inlet and outlet holes are different, and the inlet and outlet holes are concentric with the annular magnetic block.

[0009] Furthermore, the left half seal is identical to the right half seal, and the left half seal and the right half seal are assembled to form a circle.

[0010] Furthermore, a through slot is provided on the bottom side of the seat plate, and a clamping hole is provided on one side of the through slot.

[0011] Furthermore, two vertically distributed straight connecting rods are fixed to one side of the seat plate, and the two straight connecting rods are respectively located above the through slot and below the through slot.

[0012] Furthermore, a bent connecting rod is fixed to the top end of the seat plate, and the outer end of the bent connecting rod is fixed to the peripheral side of the arc-shaped magnetic attraction plate.

[0013] Furthermore, an inner groove is provided inside the L-shaped clamping plate, a compression spring is fixed inside the inner groove, a clamping block is movably connected to the opening of the inner groove, and the inner end of the clamping block is connected to the outer end of the compression spring inside the inner groove.

[0014] The utility model has the following beneficial effects:

[0015] 1. The hole sealing assembly is composed of a left half seal and a right half seal, which are magnetically adsorbed on the annular magnetic block on the outer peripheral side of the inlet and outlet holes, and the inner circles of the arc-shaped magnetic attraction plates in the left half seal and the right half seal are fixed with a group of arc-shaped foam plates with decreasing sizes from the outside to the inside. According to the thickness of the cable, a suitable number of arc-shaped foam plates in the left half seal and the right half seal can be torn off from the inside to the outside for matching and use. It has strong adjustability and is suitable for sealing cables with different wire diameters. In addition, the innermost arc-shaped foam plate in the inner circle of the left half seal and the right half seal of the hole sealing assembly is slightly compressed and squeezed on the outer peripheral side of the cable, which can seal the inlet and outlet holes and achieve the purpose of dust prevention.

[0016] 2. A group of wire harness assemblies distributed in a ring shape are arranged around the hole sealing assembly. When not in use, the unused cables can be stored by winding the cables around the area between the seat plate and the L-shaped clamp plate of each wire harness assembly around the inlet and outlet holes and limiting the wound cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0018] Figure 1 It is a structural schematic diagram of a photovoltaic grid-connected box with a wire hole sealing structure;

[0019] Figure 2 It is a structural diagram of the photovoltaic grid-connected box body;

[0020] Figure 3 It is a schematic diagram of the overall structure of the hole sealing assembly and the wiring harness assembly;

[0021] Figure 4 is a schematic diagram of the structure of the hole sealing assembly;

[0022] Figure 5 It is a structural schematic diagram of the wiring harness assembly;

[0023] Figure 6 It is a schematic diagram of the structure of the telescopic buckle in the L-shaped clamp.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 100, photovoltaic grid-connected box body; 200, inlet and outlet holes; 210, annular magnetic block; 300, hole sealing assembly; 310, left half seal; 320, right half seal; 301, arc-shaped magnetic plate; 302, arc-shaped foam board; 400, wire harness assembly; 410, seat plate; 411, through groove; 412, clamping hole; 413, straight connecting rod; 414, bent connecting rod; 420, L-shaped clamp; 421, end plate; 422, spring; 423, through hole; 430, telescopic buckle; 431, inner groove; 432, compression spring; 433, clamping block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] See also Figure 1-3 As shown, the utility model is a photovoltaic grid-connected box with a wire hole sealing structure, comprising a photovoltaic grid-connected box body 100, an inlet and outlet wire hole 200 and a hole sealing assembly 300. A group of inlet and outlet wire holes 200 with different apertures are opened at the bottom of the photovoltaic grid-connected box body 100. The apertures of the group of inlet and outlet wire holes 200 are different. An annular magnetic block 210 is fixed to the outer ring of each inlet and outlet wire hole 200. The inlet and outlet wire hole 200 is concentric with the annular magnetic block 210. Each annular magnetic block 210 is magnetically connected to the inlet and outlet wire hole 200. A hole sealing assembly 300 is connected, and the hole sealing assembly 300 includes a left half seal 310 and a right half seal 320. The left half seal 310 and the right half seal 320 are identical, and the left half seal 310 and the right half seal 320 are assembled to form a circle. The left half seal 310 and the right half seal 320 both include an arc-shaped magnetic attraction plate 301 and an arc-shaped foam plate 302. The inner circle of each arc-shaped magnetic attraction plate 301 is fixed with a group of arc-shaped foam plates 302 whose sizes decrease from the outside to the inside.

[0028] The above-mentioned setting is specifically applied as follows: after the cables of the photovoltaic grid-connected box body 100 pass through the inlet and outlet holes 200, first tear off an appropriate number of arc-shaped foam boards 302 in the left half seal 310 and the right half seal 320 from the inside to the outside according to the thickness of the cables, and then adsorb the left half seal 310 and the right half seal 320 one by one on the annular magnetic block 210 outside the inlet and outlet holes 200, so that the left half seal 310 and the right half seal 320 are combined to form a circle, causing the innermost arc-shaped foam board 302 remaining in the inner circle of the left half seal 310 and the right half seal 320 to be slightly compressed and squeezed on the outer peripheral side of the cable, thereby achieving the purpose of sealing the inlet and outlet holes 200.

[0029] Among them Figure 1 and Figure 3-6As shown, a group of annularly distributed harness assemblies 400 are fixed to the peripheral side of the hole sealing assembly 300, and the harness assembly 400 includes a seat plate 410, an L-shaped clamping plate 420 and a telescopic buckle 430. A through groove 411 is opened on the bottom side of the seat plate 410, and a clamping hole 412 is opened on one side of the through groove 411. Two vertically distributed straight connecting rods 413 are fixed to one side of the seat plate 410, and the two straight connecting rods 413 are respectively located above the through groove 411 and below the through groove 411. A bent connecting rod 414 is fixed to the top of the seat plate 410, and the outer end of the bent connecting rod 414 is fixed to the peripheral side of the arc-shaped magnetic attraction plate 301. The seat plate 410 is connected to the L-shaped clamping plate 420, and the end of the L-shaped clamping plate 420 is fixed to the end of the end plate 421 Two symmetrically arranged springs 422 are fixed on the inner side of the end plate 421, and a through hole 423 is opened on the end plate 421 corresponding to the spring 422. An inner groove 431 is opened inside the L-shaped clamping plate 420, and a compression spring 432 is fixed inside the inner groove 431. A clamping block 433 is movably connected at the opening of the inner groove 431. The built-in end of the clamping block 433 is connected to the outer end of the compression spring 432 inside the inner groove 431. The L-shaped clamping plate 420 crosses the through groove 411, and the two straight connecting rods 413 on the seat plate 410 cross the corresponding through holes 423 on the end plate 421 one by one. A telescopic buckle 430 is connected to one side of the L-shaped clamping plate 420, and the seat plate 410 and the L-shaped clamping plate 420 are limited by the telescopic buckle 430.

[0030] The above arrangement is specifically applied as follows: when in use, when the L-shaped clamping plate 420 is pulled outward, the L-shaped clamping plate 420 moves outwardly from the through slot 411, and at this time, the straight connecting rod 413 passes horizontally through the corresponding through hole 423, and the spring 422 is in a compressed state until the telescopic buckle 430 is clamped into the clamping hole 412. When the telescopic buckle 430 enters the through slot 411, the clamping block 433 is first compressed, causing the clamping block 433 to move into the inner groove 431 and compress the compression spring 432. When the clamping block 433 reaches the position of the clamping hole 412, the compressed compression spring 432 recovers its deformation and provides a reverse thrust to the clamping block 433, causing the clamping block 433 to move outward and cross the clamping hole 412, so as to limit the position between the seat plate 410 and the L-shaped clamping plate 420.

[0031] When the card block 433 is pressed hard, the card block 433 is compressed first, causing the card block 433 to move into the inner groove 431 and compress the compression spring 432, and then the L-shaped clamping plate 420 is moved inward, so that the telescopic buckle 430 can be disengaged from the clamping hole 412, and the seat plate 410 and the L-shaped clamping plate 420 can be unlocked;

[0032] When the cable in the wire entry and exit hole 200 is not in use, first pull the L-shaped clamping plates 420 of each wire harness assembly 400 on the side of the wire entry and exit hole 200 one by one, so that the telescopic buckles 430 of each wire harness assembly 400 are all stuck in the clamping holes 412 in the corresponding seat plates 410. After the L-shaped clamping plates 420 are moved outward and limited, the cables are immediately wrapped around the area between the seat plates 410 and the L-shaped clamping plates 420 of each wire harness assembly 400 on the side of the wire entry and exit hole 200. After the cables are wrapped, the telescopic buckles 430 of each wire harness assembly 400 on the side of the wire entry and exit hole 200 are immediately pressed one by one, so that the telescopic buckles 430 are all disengaged from the corresponding clamping holes 412. At this time, the L-shaped clamping plates 420 of each wire harness assembly 400 are all moved inward, and the wrapped cables can be limited by clamping the L-shaped clamping plates 420 that have moved inward.

[0033] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A photovoltaic grid-connected box with a wire hole sealing structure, comprising a photovoltaic grid-connected box body (100), a wire inlet and outlet hole (200), a hole sealing assembly (300) and a wire harness assembly (400), characterized in that: A group of inlet and outlet wire holes (200) of different diameters are provided at the bottom of the photovoltaic grid-connected box body (100); an annular magnetic block (210) is fixed to the outer ring of each inlet and outlet wire hole (200); a hole sealing assembly (300) is magnetically connected to each annular magnetic block (210); and a group of wire harness assemblies (400) distributed in an annular shape are fixed to the peripheral side of the hole sealing assembly (300); The hole sealing assembly (300) comprises a left half seal (310) and a right half seal (320), each of the left half seal (310) and the right half seal (320) comprising an arc-shaped magnetic attraction plate (301) and an arc-shaped foam plate (302), and a group of arc-shaped foam plates (302) with decreasing sizes from outside to inside are fixed to the inner circle of each arc-shaped magnetic attraction plate (301); The harness assembly (400) comprises a seat plate (410), an L-shaped clamping plate (420) and a telescopic buckle (430); the seat plate (410) is connected to the L-shaped clamping plate (420); one side of the L-shaped clamping plate (420) is connected to the telescopic buckle (430); the seat plate (410) and the L-shaped clamping plate (420) are limited by the telescopic buckle (430); An end plate (421) is fixed to the end of the L-shaped clamping plate (420), two symmetrically arranged springs (422) are fixed to the inner side surface of the end plate (421), and a through hole (423) is opened on the end plate (421) corresponding to the spring (422); The L-shaped clamping plate (420) crosses the through slot (411), and the two straight connecting rods (413) on the seat plate (410) cross the corresponding through holes (423) on the end plate (421) respectively.

2. The photovoltaic grid-connected box with a wire hole sealing structure according to claim 1, characterized in that: The diameters of a group of inlet and outlet wire holes (200) are different, and the inlet and outlet wire holes (200) are concentric with the annular magnetic block (210).

3. The photovoltaic grid-connected box with a wire hole sealing structure according to claim 1, characterized in that: The left half seal (310) and the right half seal (320) are identical, and the left half seal (310) and the right half seal (320) are assembled to form a circle.

4. The photovoltaic grid-connected box with a wire hole sealing structure according to claim 1, characterized in that: A through slot (411) is provided on the bottom side of the seat plate (410), and a clamping hole (412) is provided on one side of the through slot (411).

5. The photovoltaic grid-connected box with a wire hole sealing structure according to claim 4, characterized in that: Two vertically distributed straight connecting rods (413) are fixed to one side of the seat plate (410), and the two straight connecting rods (413) are respectively located above the through slot (411) and below the through slot (411).

6. The photovoltaic grid-connected box with a wire hole sealing structure according to claim 5, characterized in that: A bent connecting rod (414) is fixed to the top end of the seat plate (410), and the outer end of the bent connecting rod (414) is fixed to the peripheral side of the arc-shaped magnetic attraction plate (301).

7. The photovoltaic grid-connected box with a wire hole sealing structure according to claim 6, characterized in that: An inner groove (431) is provided inside the L-shaped clamping plate (420), a compression spring (432) is fixed inside the inner groove (431), a clamping block (433) is movably connected to the opening of the inner groove (431), and an inner end of the clamping block (433) is connected to an outer end of the compression spring (432) inside the inner groove (431).

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