CN220254458U - Solar photovoltaic junction box - Google Patents
Solar photovoltaic junction box Download PDFInfo
- Publication number
- CN220254458U CN220254458U CN202321358856.7U CN202321358856U CN220254458U CN 220254458 U CN220254458 U CN 220254458U CN 202321358856 U CN202321358856 U CN 202321358856U CN 220254458 U CN220254458 U CN 220254458U
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- China
- Prior art keywords
- box body
- groove
- sealing
- plate
- solar photovoltaic
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- 238000007789 sealing Methods 0.000 claims abstract description 69
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 description 10
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012466 permeate Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000026058 directional locomotion Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Photovoltaic Devices (AREA)
Abstract
The present utility model relates to the field of solar cell generation. The utility model provides a solar photovoltaic terminal box, includes box body 1, lid closes the detachable sealed lid 3 at box body 1 top, installs the wiring board 6 of the bottom of box body 1 of detachable perpendicular to in box body 1, there is through wires hole 4 on the box body 1, there is a plurality of line joints 13 on the wiring board 6, the wire of connecting on the line joint 13 draws out the outside of box body 1 through the through wires hole 4, the through wires hole 4 is sealed with the wire junction, seal groove 2 has been seted up at the top of box body 1, sealed lid 3's bottom has sealing ring 20 and spread groove 25, be provided with draw groove 23 on the sealing ring 20, install piston plate 22 in the draw groove 23, be connected with draw plate 21 on the piston plate 22, draw plate 21 stretches out outside the draw groove 23.
Description
Technical Field
The present utility model relates to the field of solar cell generation.
Background
The junction box is a connecting device between the solar photovoltaic panel and the solar charging control device, and mainly aims to connect and protect the solar photovoltaic panel, and the junction box is used for providing a cable connection fixed point to transmit electric energy converted from light energy to a power utilization circuit.
However, when the conventional junction box is subjected to the junction process, the junction box is exposed to the outside for a long time, and static electricity is generated around the solar photovoltaic panel during operation, so that a large amount of dust is distributed outside the junction box over time, and part of the dust permeates into the junction box due to poor sealing property of the junction box, so that the wires inside the junction box are corroded to damage the wires, and the connection between the solar photovoltaic panel and the solar charging control device is affected. Chinese patent publication No. CN217607775U discloses a solar photovoltaic panel junction box. The junction box comprises a box body, a box cover fixedly connected to the box body through a hinge, at least four groups of junction terminals fixedly connected to the box body in a penetrating manner, an adjusting structure and a junction positioning assembly corresponding to the junction terminals. The adjusting structure comprises a boss fixedly arranged at the center of the box bottom of the box body, a base arranged below the box body, two groups of through grooves penetrating through the base, and a sliding block fixedly arranged on the boss and matched with the through grooves. The wiring positioning assembly comprises two groups of fixing rods fixedly installed on the box body, an arc-shaped plate fixedly connected to the end part of the corresponding fixing rod, and springs fixedly installed between the two groups of arc-shaped plates. The utility model can flexibly adjust the position of the wiring terminal, so that the wiring and the disconnection operation in each area are convenient, but the problem of poor tightness of the solar photovoltaic junction box cannot be solved.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: how to overcome the problem in the background art, provide a solar photovoltaic terminal box that the leakproofness is good, and the dust can not permeate to the inside of terminal box, and then avoid the inside wire of terminal box to cause the corruption.
The technical scheme adopted by the utility model is as follows: the utility model provides a solar photovoltaic terminal box, includes box body 1, lid closes the detachable sealed lid 3 at box body 1 top, installs the wiring board 6 of the bottom of box body 1 of detachable perpendicular to in box body 1, there is through wires 4 on the box body 1, there is a plurality of line joints 13 on the wiring board 6, the wire of connecting on the line joint 13 draws the outside of box body 1 through the through wires 4, the through wires 4 is sealed with the wire junction, seal groove 2 has been seted up at the top of box body 1, there are sealing ring 20 and spread groove 25 in the bottom of sealed lid 3, be provided with pull groove 23 on the sealing ring 20, install piston board 22 in the pull groove 23, be connected with pull board 21 on the piston board 22, pull board 21 stretches out outside the pull groove 23, spread groove 25 is in the sealing ring 20 outside, install hollow air seal pad 24 in the spread groove 25, spread groove 25 and air seal pad 24 UNICOM through the sealed lid 26 when sealing ring 2 is inserted in sealing ring 1 on sealed lid 3.
As a preferred way: the box body 1 is internally provided with guide rails 5 at positions corresponding to the left side and the right side of the wiring board 6, and the wiring board 6 is installed on the guide rails 5 in a sliding connection manner.
As a preferred way: the extrusion mechanism 8 is installed to the inboard bottom of box body 1, extrusion mechanism 8 includes backup pad 9, spring 10, the bottom of wiring board 6 is in the top of backup pad 9, spring 10 is more than 2 or 2, spring 10 connects the bottom of backup pad 9 with the inboard bottom of box body 1.
As a preferred way: the extrusion mechanism 8 further comprises two pull plates 11, two sliding blocks 12 and two sliding grooves 7, wherein the sliding grooves 7 are arranged at the bottom of the box body 1, the sliding blocks 12 are arranged in the sliding grooves 7, the number of the pull plates 11 is two, and each pull plate 11 is hinged with the bottom of the supporting plate 9 and one sliding block 12.
After the connection of the wires is completed, the sealing cover 3 and the box body 1 are fixed through screws or bolts, when the bottom of the drawing plate 21 is contacted with the bottom of the sealing groove 2, the drawing plate 21 can drive the piston plate 22 to slide upwards, the piston plate 22 can compress the inner space of the drawing groove 23 when sliding upwards, at the moment, the gas in the drawing groove 23 can be conveyed to the inside of the air sealing pad 24 through the communication holes 26 after being compressed, so that the air sealing pad 24 bulges due to the input of the gas, at the moment, the bulged air sealing pad 24 can be tightly attached to the box body 1, and sealing treatment can be carried out between the sealing cover 3 and the box body 1 through the bulged air sealing pad 24, so that the wires in the junction box can be protected conveniently, dust is prevented from adhering to the surface of the junction box due to static electricity, and the dust is prevented from penetrating into the wires in the junction box to corrode the inside the junction box, so that the wires are damaged.
Drawings
FIG. 1 is a schematic view of the external structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the internal structure of the present utility model;
FIG. 3 is a schematic view of the structure of the extrusion mechanism of the present utility model;
FIG. 4 is a schematic view of a wiring board structure of the present utility model;
FIG. 5 is a schematic cross-sectional view of a seal cap of the present utility model;
FIG. 6 is an enlarged view at A of FIG. 5;
in the accompanying drawings: 1-a box body; 2-sealing the groove; 3-sealing cover; 4-threading holes; 5-a guide rail; 6-wiring board; 7-a chute; 8-an extrusion mechanism; 9-supporting plates; 10-springs; 11-pulling plates; 12-a slider; 13-wire joint; 20-sealing rings; 21-a drawing plate; 22-piston plate; 23-drawing grooves; 24-air sealing pad; 25-connecting grooves; 26-via holes.
Detailed Description
Referring to fig. 1-6, a solar photovoltaic junction box comprises a box body 1, wherein the box body is a cuboid, a sealing cover 3 is arranged at the top of the box body 1, and in the use process, the sealing cover 3 and the box body 1 are connected through screws, the sealing cover 3 is formed by three cuboid plates which are aligned and stacked together in a central mode and are of an integrated structure, and the horizontal cross-section area of the lower cuboid plate is larger than that of the upper cuboid plate. The sealing groove 2 has been seted up at the top of box body 1, the top of four curb plates of box body promptly, the sealing groove is an ring channel, all have a cuboid groove on every curb plate, four cuboid grooves of four curb plates link together and constitute the sealing groove, bolted connection, integrated connection, welding are passed through to the bottom of sealed lid 3 have sealing ring 20, and sealing ring 20 and sealing groove 2 looks adaptation, sealing ring 20 is a lower part open-ended cuboid frame, sealing ring 20's thickness equals the width of sealing groove 2.
A sealing mechanism is formed between the sealing cover 3 and the sealing ring 20, a guide rail 5 is arranged between the inner walls of two opposite sides of the box body 1, in one embodiment, the guide rail 5 is two cuboid plates with cuboid grooves, the wiring board 6 is clamped in the cuboid grooves of the two cuboid plates, and sliding connection is formed between the wiring board 6 and the guide rail 5. A plurality of wire joints 13 have been seted up to one side of wiring board 6, and a plurality of through wires holes 4 have been seted up to one side of box body 1, and the wire of connecting on the wire joint 13 passes through the outside of wire hole 4 drawing box body 1, the wire hole 4 is sealed with the wire junction, and sealed form can be one of cushion seal, glued seal etc..
When carrying out the connection processing through the terminal box between to solar photovoltaic board and solar charging controlling means, can constitute sealed processing through sealing mechanism between sealed lid 3 and box body 1 to with the dust blocking in the outside of terminal box, thereby be convenient for protect the inside wire of terminal box, prevent to lead to the dust adhesion at the surface of terminal box because static, thereby make the inside that the dust permeated to the terminal box lead to the fact the corruption to the inside wire of terminal box and make the wire take place to damage, and then lead to the fact the influence to the connection between solar photovoltaic board and the solar charging controlling means.
According to the utility model, the sealing mechanism comprises a drawing plate 21 and an air sealing pad 24, a drawing groove 23 is formed in the bottom of a sealing ring 20, a piston plate 22 is slidably connected to the inner wall of the drawing groove 23, the piston plate 22 is fixedly connected with the drawing plate 21, a connecting groove 25 is formed in the bottom of a sealing cover 3, the connecting groove 25 is fixedly connected with the top of the air sealing pad 24, the air sealing pad 24 is made of hollow elastic material (such as hollow rubber), a communication hole 26 is formed between the drawing groove 23 and the air sealing pad 24, when the bottom of the drawing plate 21 is contacted with a sealing groove 2, the drawing plate 21 drives the piston plate 22 to slide upwards, the piston plate 22 compresses the inner space of the drawing groove 23 when sliding upwards, at this time, gas in the drawing groove 23 is conveyed into the air sealing pad 24 through the communication hole 26 after being compressed, so that the air sealing pad 24 is swelled due to gas input, at this time, the swelled air sealing pad 24 is tightly attached to a box body 1, and thus the sealing between the sealing cover 3 and the box body 1 can be processed through the swelled air sealing pad 24, and a wire is sealed inside the wire is prevented from being adhered inside the wire box, and the wire is prevented from being corroded inside the wire or the wire is adhered inside the wire box.
Working principle: when the connection processing is carried out between the solar photovoltaic panel and the solar charging control device through the junction box, the lead is connected to the junction box 6, after connection is completed, the sealing cover 3 and the box body 1 are fixed, when the bottom of the drawing plate 21 is contacted with the sealing groove 2, at the moment, the drawing plate 21 can drive the piston plate 22 to slide upwards, the piston plate 22 can compress the inner space of the drawing groove 23 when sliding upwards, at the moment, the air in the drawing groove 23 can be conveyed to the inside of the air sealing pad 24 through the communication hole 26 after being compressed, so that the air sealing pad 24 is swelled due to the input of the air, at the moment, the swelled air sealing pad 24 can be clung to the outer wall of the box body 1, so that the sealing processing can be carried out between the sealing cover 3 and the box body 1 through the swelled air sealing pad 24, thereby being convenient for protecting the lead in the junction box, dust is prevented from adhering to the surface of the junction box due to static electricity, and the dust is prevented from penetrating into the inside the junction box to corrode the lead in the junction box.
As a preferred way: the extrusion mechanism 8 is installed to the inboard bottom of box body 1, extrusion mechanism 8 includes backup pad 9, spring 10, arm-tie 11, slider 12 and spout 7, spring 10 is 2, spring 10 connects the bottom of backup pad 9 with the inboard bottom of box body 1. The sliding groove 7 is arranged at the bottom of the box body 1, two sliding blocks 12 are arranged in the sliding groove 7, two pulling plates 11 are arranged, and each pulling plate 11 is hinged with the bottom of the supporting plate 9 and one sliding block 12.
The wiring board 6 is placed on the supporting plate 9, and when the wiring board 6 is pressed downward, the supporting plate 9 moves downward, so that the spring is pressed, the pulling plate 11 presses the sliding blocks 12 downward, and the two sliding blocks 12 move to the two sides of the sliding groove 7 respectively. The pulling plate 11, the slide 12 and the chute 7 realize a directional movement for the downward movement of the support plate 9, the spring 10 providing elasticity. In the actual use process, the grooves corresponding to the wiring boards 6 can be dug in the supporting boards 9, so that the wiring boards 6 are just in the grooves, and the wiring boards 6 are prevented from being separated from the supporting boards 9. Or by other means of the prior art, the relative position of the lower part of the patch panel 6 and the support plate 9 is unchanged. Due to the existence of the pressing mechanism, the wiring board 6 is protected from damage caused by collision of components inside the wiring board 6.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (4)
1. The utility model provides a solar photovoltaic terminal box, includes box body (1), lid in detachable sealed lid (3) at box body (1) top, installs terminal plate (6) of the bottom of detachable perpendicular to box body (1) in box body (1), there is through wires hole (4) on box body (1), there are a plurality of line joints (13) on terminal plate (6), the outside that box body (1) was drawn forth through wires hole (4) to the wire on connecting line joint (13), through wires hole (4) are sealed with wire junction, its characterized in that: the sealing device is characterized in that a sealing groove (2) is formed in the top of the box body (1), a sealing ring (20) and a connecting groove (25) are formed in the bottom of the sealing cover (3), a drawing groove (23) is formed in the sealing ring (20), a piston plate (22) is arranged in the drawing groove (23), a drawing plate (21) is connected to the piston plate (22), the drawing plate (21) stretches out of the drawing groove (23), the connecting groove (25) is located on the outer side of the sealing ring (20), a hollow air sealing pad (24) is arranged in the connecting groove (25), the connecting groove (25) is communicated with the air sealing pad (24) through a communication hole (26), and the sealing ring (20) is inserted into the sealing groove (2) when the sealing cover (3) is covered on the box body (1).
2. A solar photovoltaic junction box according to claim 1, wherein: the box body (1) is internally provided with guide rails (5) corresponding to the left side and the right side of the wiring board (6), and the wiring board (6) is installed on the guide rails (5) in a sliding connection mode.
3. A solar photovoltaic junction box according to claim 1, wherein: the extrusion mechanism (8) is installed to inboard bottom of box body (1), extrusion mechanism (8) are including backup pad (9), spring (10), the bottom of wiring board (6) is in the top of backup pad (9), spring (10) are more than 2 or 2, spring (10) connect the bottom of backup pad (9) with the inboard bottom of box body (1).
4. A solar photovoltaic junction box according to claim 3, characterized in that: the extrusion mechanism (8) further comprises pull plates (11), sliding blocks (12) and sliding grooves (7), wherein the sliding grooves (7) are arranged at the bottom of the box body (1), the number of the sliding blocks (12) is two, the sliding blocks (12) are all arranged in the sliding grooves (7), the number of the pull plates (11) is two, and each pull plate (11) is hinged to the bottom of the supporting plate (9) and one sliding block (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321358856.7U CN220254458U (en) | 2023-05-31 | 2023-05-31 | Solar photovoltaic junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321358856.7U CN220254458U (en) | 2023-05-31 | 2023-05-31 | Solar photovoltaic junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220254458U true CN220254458U (en) | 2023-12-26 |
Family
ID=89228145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321358856.7U Active CN220254458U (en) | 2023-05-31 | 2023-05-31 | Solar photovoltaic junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220254458U (en) |
-
2023
- 2023-05-31 CN CN202321358856.7U patent/CN220254458U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |