CN219041735U - Waterproof termination of photovoltaic board subassembly - Google Patents

Abstract

The utility model relates to the technical field of solar cells, and discloses a waterproof wiring device of a photovoltaic panel assembly, which comprises a wiring box; through the cooperation between slip subassembly, the terminal box, the lid, sealing washer and the waterproof gum cover, pass waterproof gum cover with the end and be connected with the connecting piece, thereby accomplish the circuit connection, through slider and bottom plate sliding connection, thereby improve the flexible volume of circuit, and the connecting piece passes through threaded connection with the end, joint strength has been improved, the end drops with the connecting piece when preventing the photovoltaic board dislocation removal, and the sealing washer, interior waterproof circle and outer waterproof circle realize multiple water-proof effects, the prevention of seepage level of terminal box is higher, cooperation between through the kerve, terminal box and heating panel, reduce the interval of heating panel and terminal box inner chamber through seting up the kerve, thereby improve the radiating efficiency of heating panel, be convenient for dispel the heat to the terminal box inner chamber, increase the life of power cord.

Description

Waterproof termination of photovoltaic board subassembly

Technical Field

The utility model relates to the technical field of solar cells, in particular to a waterproof wiring device for a photovoltaic panel assembly.

Background

The solar power generation mode is a solar-thermal power conversion mode, the other is a photoelectric direct conversion mode, the photoelectric direct conversion mode is to utilize the photoelectric effect to directly convert solar radiation energy into electric energy, a basic device of the photoelectric conversion is a solar cell, a solar cell panel is a device for directly or indirectly converting solar radiation energy into electric energy through the photoelectric effect or photochemical effect by absorbing sunlight, and most of solar cell panels are mainly made of silicon, so that compared with a common cell and a recyclable rechargeable cell, the solar cell belongs to a more energy-saving and environment-friendly green product;

but connect through the power cord between the photovoltaic board, the connector is higher to rainwater infiltration prevention requirement, otherwise causes the short circuit easily, and the butt joint type joint that current is commonly used easily leads to drawing out because reasons such as dislocation removal or the flexible volume that the power cord reserved of adjacent photovoltaic board is not enough moreover, consequently we need to propose a waterproof termination of photovoltaic board subassembly.

Disclosure of Invention

The utility model aims to provide a waterproof wiring device for a photovoltaic panel assembly, which is characterized in that butt-jointed link ends are arranged in a junction box, the waterproof performance of the junction box is improved, rainwater is prevented from entering the junction box, the short circuit of a power line is avoided, meanwhile, the pull-off caused by insufficient reserved expansion amount of the power line due to the movement dislocation of a photovoltaic panel is reduced, and the service life of the power line is prolonged, so that the problems in the background art are solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the waterproof wiring device for the photovoltaic panel assembly comprises a wiring box, wherein two groups of bottom plates are fixedly connected to the bottom of an inner cavity of the wiring box, two groups of sliding assemblies are slidably connected to the two groups of bottom plates, insulating plates are bonded to the upper surfaces of the two groups of sliding assemblies, and connecting pieces are bonded to the upper surfaces of the insulating plates;

the sliding component comprises a sliding block, a second sliding groove is formed in the lower surface of the sliding block, the second sliding groove is in sliding connection with the upper surface of the bottom plate, arc grooves are formed in two sides of the second sliding groove, a plurality of groups of round grooves are formed in the side walls of the arc grooves, springs are welded to the bottoms of the round grooves, a partition plate is welded to one end of each spring, balls are arranged on one side, opposite to the springs, of each partition plate, the balls are embedded in the round grooves, and first sliding grooves for the sliding connection of the balls are formed in two groups of two sides of the bottom plate.

Preferably, the top of terminal box is provided with the lid, the lower surface integrated into one piece of lid has the bulge loop, and the bulge loop is the rectangle setting, the inboard of bulge loop has inlayed interior waterproof circle, and the outside cover of bulge loop is equipped with outer waterproof circle.

Preferably, the sealing groove is seted up to the upper surface of terminal box, and the sealing washer is installed to the bottom of sealing groove, the sealing groove is the rectangle setting, the shape of bulge loop is the same with the shape of sealing groove, and the bulge loop inlays in the sealing groove, outer waterproof circle and interior waterproof circle set up between lid and terminal box.

Preferably, the upper surface of lid has seted up multiunit first locating hole, and all pegged graft in the multiunit first locating hole has positioning bolt, the bottom of terminal box inner chamber has the multiunit to consolidate the piece, and multiunit consolidates the upper end of piece and all has seted up the second locating hole that supplies positioning bolt threaded connection.

Preferably, round holes for the connector to be inserted are formed in two sides of the junction box, waterproof rubber sleeves are embedded in the round holes, and the inner diameter of each waterproof rubber sleeve is the same as the outer diameter of the connector.

Preferably, a connecting hole is formed in one side of the connecting piece, external threads are formed in the connecting hole, and the axis of the connecting hole and the axis of the round hole are arranged on the same straight line.

Preferably, one end of the connector is in threaded connection with the connecting hole, one end of the connecting hole is in threaded connection with the wiring terminal, the wiring terminal is in threaded connection with the two groups of connecting pieces, and the two ends of the wiring terminal are both provided with second internal threads.

Preferably, one end of the connecting piece in threaded connection is provided with a first internal thread, the length of the wiring terminal is greater than that of the first sliding groove, and the length of the first sliding groove is smaller than that of the bottom plate.

Preferably, two groups of waterproof rubber sleeves are embedded with waterproof plugs, and the outer diameter of each waterproof plug is larger than the inner diameter of each waterproof rubber sleeve.

Preferably, the lower surface of terminal box has seted up the kerve, and the heating panel is installed at the top of kerve, the cross section of heating panel is the same with the cross section of terminal box inner chamber.

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

1. according to the utility model, the end head is connected with the connecting piece through penetrating through the waterproof rubber sleeve mainly through the matching among the sliding component, the junction box, the box cover, the sealing ring and the waterproof rubber sleeve, so that the circuit connection is completed, the expansion and contraction amount of the circuit is improved through sliding connection of the sliding block and the bottom plate, the connecting piece is connected with the end head through threads, the connection strength is improved, the end head and the connecting piece are prevented from falling off when the photovoltaic panel moves in a dislocation manner, multiple waterproof effects are realized by the sealing ring, the inner waterproof ring and the outer waterproof ring, and the seepage-proofing level of the junction box is higher.

2. According to the utility model, through the cooperation among the bottom groove, the junction box and the radiating plate, the distance between the radiating plate and the inner cavity of the junction box is reduced by arranging the bottom groove, so that the radiating efficiency of the radiating plate is improved, the inner cavity of the junction box is conveniently radiated, and the service life of the power line is prolonged.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the junction box of the present utility model;

FIG. 3 is a schematic view of the structure of the box cover of the present utility model;

FIG. 4 is a schematic cross-sectional view of a junction box according to the present utility model;

FIG. 5 is a schematic view of a connector according to the present utility model;

FIG. 6 is a schematic view of a sliding assembly according to the present utility model;

fig. 7 is a schematic view of the structure of the terminal of the present utility model.

In the figure: 1. a junction box; 2. a box cover; 3. a joint; 31. a first internal thread; 4. a waterproof plug; 5. waterproof rubber sleeves; 6. a first positioning hole; 7. positioning bolts; 8. an outer waterproof ring; 9. a reinforcing block; 10. a second positioning hole; 11. sealing grooves; 12. a connecting piece; 121. a connection hole; 13. a terminal; 131. a second internal thread; 14. a bottom plate; 141. a first chute; 15. a bottom groove; 16. a heat dissipation plate; 17. an insulating plate; 18. a sliding assembly; 181. a slide block; 182. an arc-shaped groove; 183. a circular groove; 184. a spring; 185. a partition plate; 186. a ball; 187. a second chute; 19. an inner waterproof ring; 20. a seal ring; 21. a convex ring.

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. 1-7, the present utility model provides a technical solution: the waterproof wiring device for the photovoltaic panel assembly comprises a wiring box 1, wherein two groups of bottom plates 14 are fixedly connected to the bottom of an inner cavity of the wiring box 1, two groups of sliding assemblies 18 are slidably connected to the two groups of bottom plates 14, insulating plates 17 are bonded to the upper surfaces of the two groups of sliding assemblies 18, and connecting pieces 12 are bonded to the upper surfaces of the insulating plates 17;

the sliding assembly 18 comprises a sliding block 181, a second sliding groove 187 is formed in the lower surface of the sliding block 181, the second sliding groove 187 is in sliding connection with the upper surface of the bottom plate 14, arc grooves 182 are formed in two sides of the second sliding groove 187, a plurality of groups of round grooves 183 are formed in the side walls of the arc grooves 182, springs 184 are welded to the bottoms of the plurality of groups of round grooves 183, a partition plate 185 is welded to one end of each spring 184, balls 186 are arranged on one side, opposite to the springs 184, of each partition plate 185, the balls 186 are embedded in the round grooves 183, and first sliding grooves 141 for the sliding connection of the balls 186 are formed in two sides of the two groups of bottom plates 14.

When the line connection of the photovoltaic module is performed, firstly, two groups of connectors 3 respectively penetrate through the waterproof rubber sleeves 5 on two sides of the junction box 1, the internal threads of the connectors 3 are screwed into the connecting holes 121 of the two groups of connecting pieces 12, meanwhile, the internal threads on two ends of the connecting ends are screwed into the connecting holes 121 of the two groups of connecting pieces 12, as the connecting pieces 12, the insulating plate 17 and the sliding component 18 are bonded, the second sliding groove 187 of the sliding block 181 is aligned with the bottom plate 14, the bottom plate 14 is clamped with the sliding block 181, the rolling balls 186 are clamped in the first sliding groove 141 under the action of the springs 184, so that the installation of the sliding block 181 is completed, the two groups of connecting pieces 12 are relatively close to each other under the action of the sliding component 18, the junction box 1 can connect one or more connectors 3, the photovoltaic panel is prevented from moving or misplacing to the damage of a power line, meanwhile, the unnecessary waterproof rubber sleeves 5 are plugged through the waterproof plugs 4, so that the junction box 1 is prevented from seeping water, and the convex rings 21 of the box cover 2 are correspondingly buckled with the sealing grooves 11, under the action of the sealing rings 20, the inner waterproof rings 19 and the outer rings 8, the waterproof boxes 1 are clamped in the first sliding grooves 141, the installation of the two groups of connecting pieces are clamped by the springs 184, the heat dissipation bolts are prevented, the heat dissipation bolts are used for fixing the junction boxes 1, and the junction boxes 1, the junction boxes are prevented from being damaged by the heat dissipation boxes 1, and the junction boxes are further has the heat dissipation and the heat dissipation boxes are provided.

The top of terminal box 1 is provided with lid 2, and the lower surface integrated into one piece of lid 2 has bulge loop 21, and bulge loop 21 is the rectangle setting, and bulge loop 21's inboard has inlayed interior waterproof circle 19, and bulge loop 21's outside cover is equipped with outer waterproof circle 8, and waterproof circle 19 and outer waterproof circle 8 are contradicted the face to lid 2 and terminal box 1 through interior waterproof circle and waterproof, have increased the water-proof effects, prevent the rainwater infiltration.

The sealing groove 11 has been seted up to the upper surface of terminal box 1, and sealing washer 20 is installed to the bottom of sealing groove 11, and sealing groove 11 is the rectangle setting, and the shape of bulge loop 21 is the same with the shape of sealing groove 11, and bulge loop 21 inlays in sealing groove 11, and outer waterproof circle 8 and interior waterproof circle 19 set up between lid 2 and terminal box 1, through the difference in height setting of sealing groove 11 and bulge loop 21, effectually prevent the infiltration, avoid the terminal box 1 in the influent water cause the short circuit.

The upper surface of lid 2 has seted up multiunit first locating hole 6, and all pegged graft in the multiunit first locating hole 6 has positioning bolt 7, and the bottom of terminal box 1 inner chamber has bonded multiunit reinforcing block 9, and the second locating hole 10 that supplies positioning bolt 7 threaded connection has all been seted up to the upper end of multiunit reinforcing block 9, and it is fixed through positioning bolt 7, improves terminal box 1 and the compactness of lid 2, and the dismouting is convenient simultaneously.

Round holes for inserting the connector 3 are formed in two sides of the junction box 1, the waterproof rubber sleeves 5 are embedded in the round holes, the inner diameters of the waterproof rubber sleeves 5 are identical to the outer diameters of the connectors 3, the connectors 3 are inserted in the waterproof rubber sleeves 5, the outer walls of the connectors 3 are tightly attached to the inner walls of the waterproof rubber sleeves 5, so that a waterproof effect is achieved, a certain buffering effect is achieved, and damage to the outer walls of the lines of the connectors 3 caused by movement of the photovoltaic panel is prevented.

A connecting hole 121 is formed in one side of the connecting piece 12, external threads are formed in the connecting hole 121, the axis of the connecting hole 121 and the axis of the round hole are arranged on the same straight line, and the length of the wiring terminal 13 reserved between the two groups of connectors 3 is increased, so that the service life of the wiring terminal 13 is prolonged, and the disconnection of a circuit caused by dragging is avoided.

One end of the connector 3 is in threaded connection with the connecting hole 121, one end of the connecting hole 121 is in threaded connection with the wiring terminal 13, the wiring terminal 13 is in threaded connection with the two groups of connecting pieces 12, and two ends of the wiring terminal 13 are provided with second internal threads 131, and the butt joint connector 3 is replaced through threaded connection, so that the situation that the connector is easy to pull out is effectively avoided.

The connecting piece 12 threaded connection one end is provided with first internal thread 31, and the length of wiring end 13 is with being greater than the length of first spout 141, and the length of first spout 141 is less than the length of bottom plate 14, prevents to pull out the slip subassembly 18 and breaks away from first spout 141 when taking off, reduces the dislocation of photovoltaic board or removes the influence to joint 3.

Wherein two sets of waterproof gum cover 5 are embedded to have waterproof stopper 4, and waterproof stopper 4 external diameter is greater than waterproof gum cover 5 internal diameter, blocks up the waterproof adhesive tape that will not use through waterproof stopper 4, prevents that the rainwater from oozing into terminal box 1 and leading to the short circuit.

The lower surface of terminal box 1 has seted up kerve 15, and the heating panel 16 is installed at the top of kerve 15, and the cross section of heating panel 16 is the same with the cross section of terminal box 1 inner chamber, through the seting up of kerve 15, reduces the interval of heating panel 16 and terminal box 1 inner chamber, is convenient for dispel the heat to terminal box 1 inside, improves the life of connecting piece 12 in the terminal box 1 inner chamber.

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 (10)

1. The utility model provides a waterproof termination of photovoltaic board subassembly, includes terminal box (1), its characterized in that: two groups of bottom plates (14) are fixedly connected to the bottom of the inner cavity of the junction box (1), two groups of bottom plates (14) are slidably connected with two groups of sliding assemblies (18), insulating plates (17) are bonded to the upper surfaces of the two groups of sliding assemblies (18), and connecting pieces (12) are bonded to the upper surfaces of the insulating plates (17);

the sliding component (18) comprises a sliding block (181), a second sliding groove (187) is formed in the lower surface of the sliding block (181), the second sliding groove (187) is connected with the upper surface of the bottom plate (14) in a sliding mode, arc grooves (182) are formed in two sides of the second sliding groove (187), a plurality of groups of round grooves (183) are formed in the side walls of the arc grooves (182), springs (184) are welded at the bottoms of the round grooves (183), a baffle plate (185) is welded at one end of each spring (184), balls (186) are arranged on one side, opposite to the springs (184), of each baffle plate (185), the balls (186) are embedded in the round grooves (183), and first sliding grooves (141) for the balls (186) to be connected in a sliding mode are formed in two groups of the two sides of the bottom plate (14).

2. The waterproof wiring device of a photovoltaic panel assembly according to claim 1, wherein: the junction box is characterized in that a box cover (2) is arranged above the junction box (1), a convex ring (21) is integrally formed on the lower surface of the box cover (2), the convex ring (21) is rectangular, an inner waterproof ring (19) is embedded in the convex ring (21), and an outer waterproof ring (8) is sleeved on the outer side of the convex ring (21).

3. The waterproof wiring device of a photovoltaic panel assembly according to claim 2, wherein: the upper surface of terminal box (1) has seted up seal groove (11), and sealing washer (20) are installed to the bottom of seal groove (11), seal groove (11) are the rectangle setting, the shape of bulge loop (21) is the same with the shape of seal groove (11), and bulge loop (21) inlay in seal groove (11), outer waterproof circle (8) and interior waterproof circle (19) set up between lid (2) and terminal box (1).

4. The waterproof wiring device of a photovoltaic panel assembly according to claim 2, wherein: the upper surface of lid (2) has seted up multiunit first locating hole (6), and all pegged graft in multiunit first locating hole (6) has locating bolt (7), the bottom of terminal box (1) inner chamber has multiunit reinforcing block (9) to bond, and second locating hole (10) that supply locating bolt (7) threaded connection have all been seted up to the upper end of multiunit reinforcing block (9).

5. The waterproof wiring device of a photovoltaic panel assembly according to claim 1, wherein: the two sides of the junction box (1) are provided with round holes for the connectors (3) to be inserted, waterproof rubber sleeves (5) are embedded in the round holes, and the inner diameters of the waterproof rubber sleeves (5) are the same as the outer diameters of the connectors (3).

6. The waterproof wiring device of a photovoltaic panel assembly according to claim 5, wherein: a connecting hole (121) is formed in one side of the connecting piece (12), external threads are formed in the connecting hole (121), and the axis of the connecting hole (121) and the axis of the round hole are arranged on the same straight line.

7. The waterproof wiring device of a photovoltaic panel assembly according to claim 6, wherein: one end of the connector (3) is in threaded connection with the connecting hole (121), one end of the connecting hole (121) is in threaded connection with the wiring end (13), the wiring end (13) is in threaded connection with the two groups of connecting pieces (12), and two ends of the wiring end (13) are provided with second internal threads (131).

8. The waterproof wiring device of a photovoltaic panel assembly according to claim 7, wherein: one end of the connecting piece (12) in threaded connection is provided with a first internal thread (31), the length of the wiring end (13) is greater than that of the first sliding groove (141), and the length of the first sliding groove (141) is smaller than that of the bottom plate (14).

9. The waterproof wiring device of a photovoltaic panel assembly according to claim 1, wherein: wherein, two groups of waterproof rubber sleeves (5) are embedded with waterproof plugs (4), and the outer diameter of the waterproof plugs (4) is larger than the inner diameter of the waterproof rubber sleeves (5).

10. The waterproof wiring device of a photovoltaic panel assembly according to claim 1, wherein: the bottom groove (15) is formed in the lower surface of the junction box (1), the top of the bottom groove (15) is provided with the heat radiation plate (16), and the cross section of the heat radiation plate (16) is the same as the cross section of the inner cavity of the junction box (1).

Images