CN220985625U

CN220985625U - Marine photovoltaic module terminal box

Info

Publication number: CN220985625U
Application number: CN202322662569.1U
Authority: CN
Inventors: 仇雷飞; 李冬梅
Original assignee: China Inspection And Inspection Group South Testing Co ltd
Current assignee: China Inspection And Inspection Group South Testing Co ltd
Priority date: 2023-10-07
Filing date: 2023-10-07
Publication date: 2024-05-17
Anticipated expiration: 2033-10-07

Abstract

The utility model discloses a junction box of an offshore photovoltaic module, which relates to the technical field of photovoltaic modules and comprises a main body, wherein the main body is provided with a slot, the slot is provided with a connecting hole, the slot is plugged with a plug-in block, the plug-in block is provided with a jack, the jack is plugged with a plug-in block, the plug-in block comprises an upper clamping plate and a lower clamping plate, the upper clamping plate and the lower clamping plate are provided with clamping grooves, the main body and the plug-in block are connected with a sealant plate, the end of a photovoltaic line is clamped in the upper clamping plate and the lower clamping plate, the plug-in block is plugged in the plug-in block, the main body and the plug-in block are sealed by the sealant plate, the plug-in block is plugged in the main body, the plug-in block deforms the sealant plate in the plug-in process, the plug-in block is plugged in the jack at the moment, the plug-in block is plugged in the plug-in block at the jack, the plug-in block is plugged in the plug-in block at the plug-in end, the plug-in block is plugged in the plug-in block, the photovoltaic line is plugged in end, the photovoltaic line is at the end is completed, and the photovoltaic line is in the in.

Description

Marine photovoltaic module terminal box

Technical Field

The utility model relates to the technical field of photovoltaic modules, in particular to an offshore photovoltaic module junction box.

Background

Offshore photovoltaic refers to a technology for building a photovoltaic power generation system in an offshore environment. The principle is that offshore photovoltaics utilize solar light radiation to convert light energy into electrical energy. The photovoltaic cell panel directly converts sunlight into direct current, and then converts the direct current into alternating current through the inverter, so that the alternating current is supplied to a power grid or offshore facilities for use.

Compared with the traditional land photovoltaic power generation system, the offshore photovoltaic system has the advantages of fully utilizing offshore space, lower temperature, better heat dissipation condition, reducing land occupation and environmental influence, more stable energy output, higher power generation benefit and the like. At present, the offshore photovoltaic system is mainly applied to shallow sea areas, such as shallow sea wind power stations, ports, artificial islands and other areas.

When offshore photovoltaic construction or maintenance is performed, the photovoltaic lines need to be connected in the sea. Because the seawater is corrosive and conductive, if the metal end of the photovoltaic line contacts the seawater in the connection process of the photovoltaic line, the line can be corroded, and the use of the photovoltaic line is affected, the junction box of the offshore photovoltaic assembly is provided for solving the problems.

Disclosure of utility model

The utility model aims to provide a junction box of an offshore photovoltaic module, which aims to solve the problem that in the prior art, when a metal end of a photovoltaic line contacts seawater in the process of connecting the photovoltaic line, the line is corroded, and the use of the photovoltaic line is affected.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an offshore photovoltaic module terminal box, the main part of terminal box is including the main part, the slot has been seted up at the both ends of main part, the connecting hole that is used for connecting the photovoltaic line has been seted up to the slot bottom, the jack has been seted up to the plug-in connection that slides in the slot, the plug-in connection has the splice piece in the jack, the splice piece includes cardboard and lower cardboard, go up cardboard and the mutual concatenation of cardboard down, and go up cardboard and the terminal surface of laminating down each other has been seted up the draw-in groove that is used for fixing the photovoltaic line, the slot notch department of main part and the jack drill way department of plug-in connection all fixedly connected with be used for sealed offset plate, the sealed block of end seal block joint of photovoltaic line is in the draw-in groove of last cardboard and lower cardboard, plug-in connection in the jack of plug-in connection with the splice piece, through sealed offset plate sealed main part slot and plug-in connection, the plug-in connection that the plug-in connection in-connection process makes sealed offset plate deformation expose the jack, slidable mounting at this moment in the plug-in jack, the plug-in connection piece jack top seal offset plate.

As a preferable technical scheme of the utility model, a sealing ring for sealing a gap between the plugging block and the slot is fixedly arranged in the slot of the main body, the plugging block is plugged in an annular hole of the sealing ring, and the gap between the main body and the plugging block is sealed through the sealing ring.

As a preferable technical scheme of the utility model, the outer side wall of the plug block is fixedly sleeved with a limiting ring used for limiting the plug block, and the plug depth of the plug block is limited through the limiting ring.

As a preferable technical scheme of the utility model, one ends of the upper clamping plate and the lower clamping plate are fixedly connected with limiting plates for limiting the splicing blocks, and the splicing depth of the splicing blocks is limited through the limiting plates.

As a preferable technical scheme of the utility model, the elastic strip for increasing the elasticity of the sealing rubber plate is fixedly arranged in the sealing rubber plate, and the elasticity of the sealing rubber plate is increased through the elastic strip.

As a preferable technical scheme of the utility model, the outer side wall of the main body and the outer side wall of the limiting ring are fixedly connected with side plates, the side plates of the main body are in threaded connection with the side plates of the limiting ring, and the main body is in threaded connection with the plug blocks through the side plates.

As a preferable technical scheme of the utility model, the outer side wall of the plug block and the outer side wall of the limiting plate are fixedly connected with side plates, the side plates of the plug block are in threaded connection with the side plates of the limiting plate, and the plug block is in threaded connection with the splicing block through the plate.

As a preferable technical scheme of the utility model, the upper clamping plate and the lower clamping plate are in threaded connection.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, the end of the photovoltaic line is clamped in the clamping grooves of the upper clamping plate and the lower clamping plate in a sealing way, the splicing blocks are spliced in the jacks of the splicing blocks, the main body slots and the splicing block jacks are sealed through the sealing rubber plates, the splicing blocks are spliced in the main body slots, the sealing rubber plates are deformed to expose the jacks in the splicing process, the splicing blocks are slidably arranged in the splicing block jacks at the moment, the sealing rubber plates sealing the splicing block jacks are propped open, the end of the photovoltaic line is spliced in the connecting holes in the main body, at the moment, underwater sealing connection can be completed, and the problem that the use of the photovoltaic line is affected if the metal end of the photovoltaic line is contacted with seawater in the existing photovoltaic line connection process is solved.

Drawings

FIG. 1 is a schematic view of the overall structure of a junction box according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a main structure of an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a body of an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a stripper plate according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a plug structure according to an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of a plug according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a splice block extension structure according to an embodiment of the present utility model;

fig. 8 is an exploded view of a splice block according to an embodiment of the present utility model.

In the figure: 1. a main body; 11. a seal ring; 2. a plug block; 21. a limiting ring; 3. splicing blocks; 31. an upper clamping plate; 32. a lower clamping plate; 33. a limiting plate; 4. sealing rubber plate; 41. an elastic strip; 5. and a side plate.

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.

Examples

Referring to fig. 1 to 8, the present embodiment provides an offshore photovoltaic module junction box, which includes a main body 1 of the junction box.

Specifically, the internal structure of the main body 1 refers to patent publication No.: the connection box of the photovoltaic module of CN105958936A is characterized in that slots are formed in two ends of the main body 1, connection holes are formed in the bottoms of the slots, connectors of the photovoltaic wires can be inserted into the connection holes, two photovoltaic wires are connected to the two ends of the main body 1 through the connection holes, and the two photovoltaic wires can be mutually communicated.

In order to be able to connect the photovoltaic wire with the main body 1 under water, the socket of the main body 1 is slidably inserted with an insertion block 2, and the outer side wall of the connector of the photovoltaic wire is provided with an insertion block 3.

Specifically, the splicing block 3 includes an upper clamping plate 31 and a lower clamping plate 32, the upper clamping plate 31 and the lower clamping plate 32 are mutually spliced and combined, as shown in fig. 8, clamping grooves are formed in the end faces of the upper clamping plate 31 and the lower clamping plate 32, the connectors of the photovoltaic wires are fixedly clamped in the clamping grooves of the upper clamping plate 31 and the lower clamping plate 32, the upper clamping plate 31 and the lower clamping plate 32 are in threaded connection, the connectors of the photovoltaic wires are fixedly clamped in the clamping grooves of the upper clamping plate 31 and the lower clamping plate 32, and the conductive ends of the connectors of the photovoltaic wires extend out from one end of the splicing block 3.

The wainscot that goes up cardboard 31 and lower cardboard 32 are close to each other all is provided with the face of gluing, and the face of gluing sets up to the rubber material, and after last cardboard 31 and lower cardboard 32 threaded connection, the face of gluing is with photovoltaic line connector sealing connection in the draw-in groove of last cardboard 31 and lower cardboard 32.

As shown in fig. 5 and 6, the jack is formed in the plug block 2, the splicing block 3 is plugged in the jack of the plug block 2 in a sealing manner, the sealing rubber plates 4 are fixedly connected to the hole openings of the jack of the plug block 2, the number of the sealing rubber plates 4 is two, and the two sealing rubber plates 4 are symmetrically arranged in a door shape.

Specifically, the sealing rubber plate 4 is made of rubber, as shown in fig. 4, an elastic strip 41 is arranged in the sealing rubber plate 4, the elastic strip 41 is a metal elastic sheet, and the elastic strip 41 increases the structural strength of the sealing rubber plate 4 and increases the elasticity of the sealing rubber plate 4.

As shown in fig. 3, fig. 4 and fig. 5, the side edge of the sealing glue plate 4 is fixedly connected to the hole opening of the jack of the plugging block 2, the sealing glue plate 4 is attached to one end of the plugging block 2, the other ends of the two sealing glue plates 4 are attached to each other, one end jack of the plugging block 2 is further sealed, and the jack of the plugging block 2 is sealed, so that the photovoltaic wire connector can be sealed in the jack of the plugging block 2.

As shown in fig. 2 and 3, a sealing ring 11 is fixedly installed at the slot opening of the main body 1, an annular hole of the sealing ring 11 is matched with the plug-in block 2, two sealing rubber plates 4 which are symmetrical in a door shape are fixedly connected at the annular hole of the sealing ring 11, the sealing ring 11 is sealed by the two sealing rubber plates 4, and then the slot of the main body 1 is sealed, so that seawater is prevented from entering the main body 1.

Before connecting the main body 1 and the photovoltaic wire, fixing the connector of the photovoltaic wire in the clamping grooves of the upper clamping plate 31 and the lower clamping plate 32, inserting the splicing block 3 in the jack of the splicing block 2, and sealing the splicing block 3 by the two sealing glue plates 4, namely sealing the photovoltaic wire connector.

When the connecting main body 1 and the photovoltaic wire are installed, the plug-in block 2 is plugged in the annular hole of the limiting ring 21, in the plugging process, the sealing rubber plate 4 connected with the limiting ring 21 deforms, and the sealing rubber plate 4 is attached to the inner wall of the annular hole of the limiting ring 21. The sealing rubber plate 4 and the limiting ring 21 seal between the outer side wall of the plug-in block 2 and the slot of the main body 1, so that the plug-in block 2 can be plugged in the slot of the main body 1 in a sealing way. And then, one end of the splicing block 3 is pushed, so that the splicing block 3 moves towards the direction of the connecting hole in the main body 1, the sealing rubber plate 4 connected with the splicing block 2 is extruded in the moving process of the splicing block 3, the sealing rubber plate 4 connected with the splicing block 2 is deformed, the splicing block 2 moves to enable the connector of the photovoltaic wire to be spliced in the connecting hole in the main body 1, and at the moment, the connection of the photovoltaic wire and the main body 1 is completed.

In order to limit the position of the plugging block 2 plugged in the slot of the main body 1, the outer side wall of the plugging block 2 is fixedly sleeved with a limiting ring 21. After the plug block 2 moves to enable the limiting ring 21 to be attached to one end of the main body 1, the plug block 2 can be limited.

As shown in fig. 2 and 5, the outer side wall of the main body 1 is fixedly connected with a side plate 5, the outer side wall of the limiting ring 21 is also fixedly connected with a side plate 5, when the limiting ring 21 is attached to one end of the main body 1, the side plate 5 of the limiting ring 21 is attached to the side plate 5 of the main body 1, and the side plate 5 of the limiting ring 21 is in threaded connection with the side plate 5 of the main body 1, so that the main body 1 and the plug block 2 can be fixedly connected.

In order to limit the position of the splicing block 3 spliced in the jack of the splicing block 2, one end, away from the main body 1, of the upper clamping plate 31 and the lower clamping plate 32 is fixedly connected with a limiting plate 33. After the splicing block 3 moves to enable the limiting plate 33 to be attached to one end of the plug-in block 2, the movement of the splicing block 3 can be limited.

As shown in fig. 5, the outer side wall of the plug-in block 2 is fixedly connected with the side plate 5, the outer side wall of the limit plate 33 is also fixedly connected with the side plate 5, after the limit plate 33 is attached to one end of the plug-in block 2, the side plate 5 of the plug-in block 2 and the side plate 5 of the limit plate 33 are attached to each other, and the side plate 5 of the plug-in block 2 and the side plate 5 of the limit plate 33 are in threaded connection, so that the plug-in block 2 and the splice block 3 can be fixedly connected.

The sea water can flow under the influence of wind power or tides, and the photovoltaic wire and the junction box in the water can shake due to the sea water flowing, so that the side plates 5 which are mutually attached through the threaded connection form a whole body 1, the plug-in blocks 2 and the splice blocks 3, and further, the photovoltaic wire and the junction box can be prevented from being separated when shaking in the sea water.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an offshore photovoltaic module terminal box, includes main part (1) of terminal box, its characterized in that: the utility model discloses a photovoltaic cable fixing device, including main part (1) and socket, the slot has been seted up at both ends of main part (1), the connecting hole that is used for connecting the photovoltaic cable has been seted up to the slot bottom, slip grafting has grafting piece (2) in the slot, the jack has been seted up to grafting piece (2), slip grafting has splicing block (3) in the jack, splicing block (3) are including last cardboard (31) and lower cardboard (32), go up cardboard (31) and lower cardboard (32) and splice each other, and go up the draw-in groove that is used for fixed photovoltaic cable has been seted up to the terminal surface that laminates each other of cardboard (31) and lower cardboard (32), the equal fixedly connected with of slot notch department of main part (1) and jack drill way department of grafting piece (2) is used for sealed glue board (4).

2. The offshore photovoltaic module junction box of claim 1, wherein: the socket of the main body (1) is internally and fixedly provided with a sealing ring (11) for sealing a gap between the plug-in block (2) and the socket, and the plug-in block (2) is plugged in an annular hole of the sealing ring (11).

3. The offshore photovoltaic module junction box of claim 2, wherein: and a limiting ring (21) for limiting the plug-in block (2) is fixedly sleeved on the outer side wall of the plug-in block (2).

4. The offshore photovoltaic module junction box of claim 1, wherein: and one ends of the upper clamping plate (31) and the lower clamping plate (32) are fixedly connected with limiting plates (33) for limiting the splicing blocks (3).

5. The offshore photovoltaic module junction box of claim 1, wherein: an elastic strip (41) for increasing the elasticity of the sealing rubber plate (4) is fixedly arranged in the sealing rubber plate (4).

6. The offshore photovoltaic module junction box of claim 1, wherein: the side plates (5) are fixedly connected to the outer side wall of the main body (1) and the outer side wall of the limiting ring (21), and the side plates (5) of the main body (1) are in threaded connection with the side plates (5) of the limiting ring (21).

7. The offshore photovoltaic module junction box of claim 6, wherein: the outer side wall of the plug block (2) and the outer side wall of the limiting plate (33) are fixedly connected with the side plate (5), and the side plate (5) of the plug block (2) is in threaded connection with the side plate (5) of the limiting plate (33).

8. The offshore photovoltaic module junction box of claim 1, wherein: the upper clamping plate (31) is in threaded connection with the lower clamping plate (32).