CN219351675U

CN219351675U - Photovoltaic junction box

Info

Publication number: CN219351675U
Application number: CN202320647645.9U
Authority: CN
Inventors: 高向阳; 吴锐; 于春辉; 刘昌华
Original assignee: Datang International Power Generation Co Ltd
Current assignee: Datang International Power Generation Co Ltd
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2023-07-14
Anticipated expiration: 2033-03-29

Abstract

The utility model discloses a photovoltaic junction box, in particular to the technical field of photovoltaic junction boxes, which comprises a photovoltaic junction box body, wherein a cover plate assembly is arranged at the top of the photovoltaic junction box body, the cover plate assembly comprises a first cover plate and a second cover plate which are arranged at the top end of the photovoltaic junction box body, a movable plate is movably arranged in the second cover plate, the movable plate is fixed on one side of the first cover plate, fixing mechanisms which are distributed front and back are fixedly arranged on the sides, away from each other, of the first cover plate and the second cover plate, fixing between the photovoltaic junction box body and the cover plate assembly is realized, the fixing mechanisms comprise a plugboard, a telescopic rod is fixedly arranged at the bottom of the plugboard, a fixing block is fixedly arranged at the bottom of the telescopic rod, and a spring is arranged on the outer ring of the telescopic rod. According to the utility model, through the cover plate component and the fixing mechanism, the box covers can be randomly provided with photovoltaic junction boxes with different sizes, so that the box covers can be reused, and the application range is wide.

Description

Photovoltaic junction box

Technical Field

The utility model relates to the technical field of photovoltaic junction boxes, in particular to a photovoltaic junction box.

Background

Solar energy is becoming more and more popular because of its pollution-free and inexhaustible nature. Particularly, in the area with sufficient illumination, the photovoltaic junction box is a connecting device between a solar cell matrix formed by the solar cell modules and the solar charging control device, and is mainly used for connecting and protecting the solar cell modules, connecting the electric power generated by the solar cells with an external circuit, conducting the current generated by the photovoltaic modules, and the junction box is used for connecting the cell matrix and the charging control device.

For example, chinese patent application number CN213367720U photovoltaic terminal box, including box body and lid, the box body with the connecting piece is installed at the edge of lid one side, the slot has been seted up to the lateral wall top symmetry of box body, be provided with the picture peg in the slot, the one end of location inserted bar with the constant head tank coincide each other, the other end of location inserted bar is fixed the top of swivel nut, the catch is installed in the front of lid, install first fin on the box body inner wall, the second fin is installed at the box body back, the gasket is installed to the swivel nut bottom, the one end of spring is fixed on the lateral wall of mounting groove, the other end of spring is fixed on the location inserted bar.

Above-mentioned prior art, the lid can not dispose the photovoltaic terminal box of equidimension at will, makes its lid unable reuse, and application scope is narrow.

Disclosure of Invention

In order to overcome the defects in the prior art, the photovoltaic junction box provided by the utility model has the advantages that through the cover plate component and the fixing mechanism, the box covers can be randomly configured with photovoltaic junction boxes with different sizes, so that the box covers can be repeatedly used, and the application range is wide.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a photovoltaic terminal box, includes the photovoltaic terminal box body, photovoltaic terminal box body top is equipped with the apron subassembly, the apron subassembly is including locating the first apron and the second apron on photovoltaic terminal box body top, the inside activity of second apron is equipped with the fly leaf, the fly leaf is fixed in first apron one side, one side that first apron and second apron kept away from mutually is all fixed and is equipped with the fixed establishment who distributes around, realizes fixing between photovoltaic terminal box body and the apron subassembly, fixed establishment includes the plugboard, the plugboard bottom is fixed and is equipped with the telescopic link, the fixed block that is equipped with in telescopic link bottom, photovoltaic terminal box body bottom is located to the fixed block, the telescopic link outer lane is equipped with the spring, the spring both ends respectively with plugboard bottom and fixed block top fixed connection.

Preferably, the first apron bottom is fixed to be equipped with the second and seals up the pad, and the second is sealed fills up and is located photovoltaic terminal box body top one side, the second apron bottom is fixed to be equipped with the third and seals up the pad, and the third is sealed fills up and locate photovoltaic terminal box body top opposite side, is convenient for seal up first apron, second apron and photovoltaic terminal box body.

Preferably, the two plugboards on the left side penetrate through one side, far away from the second cover plate, of the first cover plate and are in sliding connection with the first cover plate, and the two plugboards on the right side penetrate through one side, far away from the first cover plate, of the second cover plate and are in sliding connection with the second cover plate, so that the size of the cover plate assembly is convenient to adjust.

Preferably, the four plug boards are fixedly connected with the adjacent first cover board and second cover board through bolts respectively, and are used for fixing the plug boards.

Preferably, photovoltaic terminal box body one side is equipped with heat dissipation mechanism, and the circulation of the inside air of photovoltaic terminal box body of being convenient for avoids terminal box inside high temperature, heat dissipation mechanism includes the ring, the inside one side of photovoltaic terminal box body is located to the ring is fixed and communicates with each other with the photovoltaic terminal box body is inside, the ring is kept away from the fixed support that is equipped with of one end of photovoltaic terminal box body, the ring is close to the fixed filter screen that is equipped with of one end of photovoltaic terminal box body, the inside and outside air circulation of photovoltaic terminal box body of being convenient for.

Preferably, the brush rod is arranged in the circular ring and is rotationally connected with the support through the rotating shaft, and a brush head is fixed on one side, away from the support, of the brush rod and is in contact with the filter screen for cleaning dust on the surface of the filter screen.

The utility model has the technical effects and advantages that:

1. through manual pulling second apron, when making the interior fly leaf of second apron extend to suitable size, drive the spring and stretch when making plugboard, fixed block carry out the expansion link, make plugboard centre gripping apron subassembly, fixed block centre gripping photovoltaic terminal box body bottom, be convenient for adjust apron subassembly size and utilize fixed establishment to be convenient for fix apron subassembly and photovoltaic terminal box body, make the apron subassembly dispose the photovoltaic terminal box body of equidimension at will, make apron subassembly can reuse, application scope is wide.

2. Outside air passes through the filter screen and gets into in the photovoltaic terminal box body, makes the inside and outside circulation of air of photovoltaic terminal box body, and when the interior high temperature of photovoltaic terminal box body of being convenient for dispels the heat, when the dust on filter screen surface needs the clearance, rotates through manual rotation brush-holder stud and drives the brush head and rotate, clear up filter screen surface dust, avoids dust jam filter screen to influence the circulation of air.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the overall structure of the present utility model;

FIG. 3 is a cross-sectional view of the structure of the photovoltaic junction box body, the first cover plate and the second cover plate of the utility model;

FIG. 4 is a block diagram of a cover plate assembly and adjustment mechanism of the present utility model;

FIG. 5 is an elongated structural view of the cover plate assembly of the present utility model;

fig. 6 is a structural view of a heat dissipating mechanism according to the present utility model.

The reference numerals are: the photovoltaic junction box comprises a photovoltaic junction box body 1, a cover plate assembly 2, a first cover plate 21, a second cover plate 22, a movable plate 23, a first sealing gasket 24, a second sealing gasket 25, a third sealing gasket 26, a fixing mechanism 3, a plug board 31, a spring 32, a fixing block 33, a telescopic rod 34, a bolt 35, a heat dissipation mechanism 4, a circular ring 41, a bracket 42, a rotating shaft 43, a brush rod 44, a brush head 45 and a filter screen 46.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5 of the specification, the utility model provides a photovoltaic junction box, which comprises a photovoltaic junction box body 1, wherein a cover plate assembly 2 is arranged at the top of the photovoltaic junction box body 1, the cover plate assembly 2 comprises a first cover plate 21 and a second cover plate 22 which are arranged at the top end of the photovoltaic junction box body 1, a movable plate 23 is movably arranged in the second cover plate 22, the movable plate 23 is fixed at one side of the first cover plate 21, a second sealing gasket 25 is fixedly arranged at the bottom of the first cover plate 21, the second sealing gasket 25 is arranged at one side of the top of the photovoltaic junction box body 1, a third sealing gasket 26 is fixedly arranged at the bottom of the second cover plate 22, and the third sealing gasket 26 is arranged at the other side of the top of the photovoltaic junction box body 1.

The fixing mechanisms 3 which are distributed front and back are fixedly arranged on the sides, away from the first cover plate 21 and the second cover plate 22, of the first cover plate and the second cover plate, the fixing mechanisms 3 comprise plug boards 31, telescopic rods 34 are fixedly arranged at the bottoms of the plug boards 31, fixing blocks 33 are fixedly arranged at the bottoms of the telescopic rods 34, the fixing blocks 33 are arranged at the bottoms of the photovoltaic junction box 1, springs 32 are arranged on the outer rings of the telescopic rods 34, and two ends of each spring 32 are fixedly connected with the bottom ends of the corresponding plug boards 31 and the top ends of the corresponding fixing blocks 33 respectively;

the two plugboards 31 on the left side penetrate through one side, far away from the second cover plate 22, of the first cover plate 21 and are in sliding connection with the first cover plate 21, the two plugboards 31 on the right side penetrate through one side, far away from the first cover plate 21, of the second cover plate 22 and are in sliding connection with the second cover plate 22, and the four plugboards 31 are fixedly connected with the adjacent first cover plate 21 and second cover plate 22 through bolts 35 respectively.

When the photovoltaic junction box is used, the cover plate assembly 2 is covered on the top of the photovoltaic junction box body 1, the second cover plate 22 is pulled manually due to the fact that the sizes of the photovoltaic junction box bodies 1 are different, the movable plate 23 in the second cover plate 22 is extended to a proper size, the bolts 35 are unscrewed, the inserting plate 31 and the fixing block 33 stretch through the telescopic rod 34 and simultaneously drive the springs 32 to stretch, the inserting plate 31 clamps the cover plate assembly 2, the fixing block 33 clamps the bottom of the photovoltaic junction box body 1, finally the bolts 35 are screwed down, the size of the cover plate assembly 2 is convenient to adjust, the cover plate assembly 2 and the photovoltaic junction box body 1 are convenient to fix by the fixing mechanism 3, the cover plate assembly 2 is enabled to be configured with the photovoltaic junction box body 1 with different sizes at will, and the cover plate assembly 2 can be repeatedly utilized.

Referring to fig. 1-3 and 6 of the specification, a heat dissipation mechanism 4 is arranged on one side of the photovoltaic junction box body 1, circulation of air inside the photovoltaic junction box body 1 is facilitated, overhigh temperature inside the junction box is avoided, the heat dissipation mechanism 4 comprises a circular ring 41, the circular ring 41 is fixedly arranged on one side inside the photovoltaic junction box body 1 and is communicated with the inside of the photovoltaic junction box body 1, a support 42 is fixedly arranged at one end, away from the photovoltaic junction box body 1, of the circular ring 41, a filter screen 46 is fixedly arranged at one end, close to the photovoltaic junction box body 1, of the circular ring 41, a brush rod 44 is arranged inside the circular ring 41, the brush rod 44 is rotationally connected with the support 42 through a rotating shaft 43, a brush head 45 is fixedly arranged on one side, away from the support 42, of the brush rod 44, and the brush head 45 is in contact with the filter screen 46.

When the photovoltaic junction box is used, external air enters the photovoltaic junction box body 1 through the filter screen 46, so that the internal and external air of the photovoltaic junction box body 1 circulates, heat dissipation is carried out when the temperature in the photovoltaic junction box body 1 is overhigh, and furthermore, when dust on the surface of the filter screen 46 needs to be cleaned, the brush rod 44 is manually rotated, the brush head 45 is driven to rotate by the rotation of the brush rod 44, the dust on the surface of the filter screen 46 is cleaned, and the dust blocking the filter screen 46 is prevented from affecting the circulation of the air.

Finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. Photovoltaic terminal box, including photovoltaic terminal box body (1), its characterized in that: the top of the photovoltaic junction box body (1) is provided with a cover plate assembly (2);

the cover plate assembly (2) comprises a first cover plate (21) and a second cover plate (22) which are arranged at the top end of the photovoltaic junction box body (1), a movable plate (23) is movably arranged in the second cover plate (22), and the movable plate (23) is fixed on one side of the first cover plate (21);

the fixing mechanisms (3) which are distributed front and back are fixedly arranged on the sides, away from the first cover plate (21) and the second cover plate (22), of the photovoltaic junction box body (1) and the cover plate assembly (2);

the fixing mechanism (3) comprises a plugboard (31), a telescopic rod (34) is fixedly arranged at the bottom of the plugboard (31), a fixing block (33) is fixedly arranged at the bottom of the telescopic rod (34), the fixing block (33) is arranged at the bottom of the photovoltaic junction box body (1), a spring (32) is arranged on the outer ring of the telescopic rod (34), and two ends of the spring (32) are fixedly connected with the bottom end of the plugboard (31) and the top end of the fixing block (33) respectively.

2. The photovoltaic junction box of claim 1, wherein: the photovoltaic junction box comprises a photovoltaic junction box body (1), and is characterized in that a second sealing gasket (25) is fixedly arranged at the bottom of a first cover plate (21), the second sealing gasket (25) is arranged on one side of the top of the photovoltaic junction box body (1), a third sealing gasket (26) is fixedly arranged at the bottom of a second cover plate (22), and the third sealing gasket (26) is arranged on the other side of the top of the photovoltaic junction box body (1).

3. The photovoltaic junction box of claim 1, wherein: the two plugboards (31) on the left penetrate through one side, far away from the second cover plate (22), of the first cover plate (21) and are in sliding connection with the first cover plate (21), and the two plugboards (31) on the right penetrate through one side, far away from the first cover plate (21), of the second cover plate (22) and are in sliding connection with the second cover plate (22).

4. A photovoltaic junction box according to claim 3, characterized in that: the four plug boards (31) are fixedly connected with the adjacent first cover board (21) and second cover board (22) through bolts (35).

5. The photovoltaic junction box of claim 1, wherein: a heat dissipation mechanism (4) is arranged on one side of the photovoltaic junction box body (1), so that ventilation of air in the photovoltaic junction box body (1) is facilitated, and overhigh temperature in the junction box is avoided;

the heat dissipation mechanism (4) comprises a circular ring (41), the circular ring (41) is fixedly arranged on one side inside the photovoltaic junction box body (1) and is communicated with the inside of the photovoltaic junction box body (1), one end, away from the photovoltaic junction box body (1), of the circular ring (41) is fixedly provided with a support (42), and one end, close to the photovoltaic junction box body (1), of the circular ring (41) is fixedly provided with a filter screen (46).

6. The photovoltaic junction box of claim 5, wherein: the brush is characterized in that a brush rod (44) is arranged inside the circular ring (41), the brush rod (44) is rotatably connected with the support (42) through a rotating shaft (43), a brush head (45) is fixed on one side, far away from the support (42), of the brush rod (44), and the brush head (45) is in contact with the filter screen (46).