CN219918872U

CN219918872U - Photovoltaic junction box

Info

Publication number: CN219918872U
Application number: CN202320989912.0U
Authority: CN
Inventors: 马冬; 李小强; 张晓东; 牛萍
Original assignee: China Energy Engineering Group Guangdong Power Engineering Co ltd
Current assignee: China Energy Engineering Group Guangdong Power Engineering Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-10-27
Anticipated expiration: 2033-04-27

Abstract

The utility model discloses a photovoltaic junction box, which comprises a junction box body and a fixing mechanism arranged on one side of the junction box body and used for limiting the position of a cable, wherein an electronic element is arranged on the inner wall of the bottom of the junction box body, a ventilation mechanism used for radiating heat is arranged at the top of the junction box body, a top cover is arranged on the outer wall of the top of the junction box body, the fixing mechanism comprises two wire fixing pipes, round grooves are formed in two ends of the outer wall of one side of the junction box body, and the wire fixing pipes are arranged in the round grooves; according to the utility model, when the wiring of the cable and the junction box body is finished through the wire fixing pipe, the pressing plate can be controlled to be upwards or downwards through the rotation of the rod cap, the position of the cable can be fixed through the lamination of the pressing plate and the cable, and the friction force between the pressing plate and the cable can be increased through the friction blocks, so that the fixing is facilitated, and the cable is prevented from slipping from the junction box body.

Description

Photovoltaic junction box

Technical Field

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

Background

The photovoltaic junction box can also be called a connecting device for protecting a solar photovoltaic module, and the connecting device is arranged between a solar cell matrix formed by the solar cell module and a solar charging control device and mainly used for connecting and protecting the solar photovoltaic module, connecting the electric power generated by the solar cell with an external circuit and conducting the current generated by the photovoltaic module.

Through retrieving, a photovoltaic junction box with a patent publication number of CN213367720U comprises a box body and a box cover, slots are symmetrically formed in the top of the side wall of the box body, a plugboard is arranged in each slot, a positioning groove is formed in each plugboard, the plugboard is identical with each slot, the plugboard is fixed at the bottom of the box cover, a mounting groove is formed in the side wall of the box body, a locking device is arranged in the mounting groove, a first sealing strip is arranged at the bottom of the box cover, a second sealing strip is arranged at the top of the side wall of the box body, and the second sealing strip is arranged between the two slots. The utility model is easy to disassemble and convenient for maintenance personnel to disassemble and assemble; the inside of the junction box is in a sealed state through the first sealing strip, the second sealing strip and the sealing ring, so that the waterproof effect can be achieved; the heat inside the junction box is transferred to the air through the first radiating fins and the second radiating fins, so that the purpose of cooling is achieved, and the junction box is waterproof and has a radiating function.

The technical characteristics have the following defects: the cable that above device does not possess to connect carries out spacing function, finish the back at cable and photovoltaic terminal box, the cable can drop, if not fix, then can lead to the cable to slide out from the wiring, and then lead to inconvenient use, influence normal work, simultaneously, the specification of cable is different, leads to the thickness of cable also different, can only carry out spacing also inconvenient use to the cable of one specification among the prior art, consequently, need to design a photovoltaic terminal box to solve above-mentioned problem.

Disclosure of Invention

The present utility model is directed to a photovoltaic junction box, which solves the above-mentioned problems of the prior art.

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 terminal box body and sets up in one side of terminal box body and be used for carrying out spacing fixed establishment of position to the cable, electronic component is installed to the bottom inner wall of terminal box body, the top of terminal box body is provided with the ventilation mechanism that is used for the heat dissipation, the top cap is installed to the top outer wall of terminal box body;

fixed establishment includes two solid spool, and the circular slot has all been opened at one side outer wall both ends of terminal box body, and solid spool all installs in the circular slot, it has the threaded rod all to peg graft through the screw thread rotation at the circumference outer wall top of solid spool, and the equal fixedly connected with pole cap of top outer wall of threaded rod, and the equal fixedly connected with clamp plate of the bottom outer wall of threaded rod, two the equal fixedly connected with friction disc that a plurality of equidistance distributed of bottom outer wall of clamp plate, and the friction disc is made for rubber.

Preferably, the ventilation mechanism comprises a filter screen, a square groove is formed in the top outer wall of the top cover, the filter screen is mounted on the top outer wall of the top cover, and an opening and closing mechanism for shielding the filter screen is arranged on the top outer wall of the top cover.

Preferably, the mechanism that opens and shuts includes two horizontal poles, and horizontal groove has all been opened to the top outer wall both sides of top cap, and horizontal pole fixed connection is between the both ends inner wall of horizontal groove, two the equal sliding sleeve of circumference outer wall both ends of horizontal pole has moved the piece, wherein two the first apron of top outer wall fixedly connected with of removal piece, two in addition the top outer wall fixedly connected with second apron of removal piece, the slot that a plurality of equidistance distributed has all been opened at the top outer wall both ends of top cap, the equal fixedly connected with otic placode of the relative other end outer wall of first apron and second apron, the perpendicular groove with slot looks adaptation is all opened to the top outer wall of otic placode, all pegged graft in the perpendicular groove has the bolt, and the bolt is pegged graft in the slot through perpendicular groove.

Preferably, the outer walls of the two ends of the junction box body are fixedly connected with a plurality of radiating fins which are distributed at equal intervals.

Preferably, the bottom outer wall fixedly connected with bottom plate of terminal box body, and four corners of the top outer wall of bottom plate all open the screw groove.

Preferably, the bottom outer wall fixedly connected with seal post of top cap, the top outer wall of terminal box body is opened has the seal groove with seal post looks adaptation, and seal post peg graft in the seal groove, the bottom outer wall fixedly connected with laminating ring of top cap, four outer walls of laminating ring all laminate with four inner walls of terminal box body mutually.

Preferably, the outer wall of the other end of the first cover plate is provided with a side groove, the inner wall of one end of the side groove is provided with a striking piece, the outer wall of one end of the second cover plate is fixedly connected with a plugboard matched with the side groove, and the plugboard is made of iron.

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

according to the utility model, when the wiring of the cable and the junction box body is finished through the wire fixing pipe, the pressing plate can be controlled to be upwards or downwards through the rotation of the rod cap, the position of the cable can be fixed through the lamination of the pressing plate and the cable, and the friction force between the pressing plate and the cable can be increased through the plurality of friction blocks, so that the fixing is facilitated, and the cable is prevented from slipping from the junction box body;

according to the utility model, ventilation can be performed inside the junction box body through the square groove, heat dissipation of the electronic element is facilitated, large material impurities can be prevented from entering the inside of the junction box body through the filter screen, the influence on the electronic element is avoided, the filter screen can be shielded through the first cover plate and the second cover plate, rainwater is prevented from falling into the inside of the junction box body from the square groove, the influence on the electronic element is avoided, the positions of the first cover plate and the second cover plate can be fixed through the lug plate, the bolt and the slot, the junction box is beneficial to use, rainwater can be prevented from entering through gaps between the top cover and the junction box body through the seal groove and the seal column, and rainwater can be further prevented from penetrating through the attaching ring;

according to the utility model, rainwater can be prevented from penetrating from the gap between the first cover plate and the second cover plate through the plugboard and the side groove, and when the plugboard is completely inserted into the side groove, the plugboard collides with the striking piece to make a sound, so that the effect of reminding workers can be achieved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a photovoltaic junction box.

Fig. 2 is a schematic view of an ear plate structure of a photovoltaic junction box.

Fig. 3 is a schematic diagram of a filter screen structure of a photovoltaic junction box.

Fig. 4 is a schematic structural view of a sealing post of a photovoltaic junction box.

Fig. 5 is a schematic view of a seal groove structure of a photovoltaic junction box.

Fig. 6 is a schematic diagram of a side channel structure of a photovoltaic junction box.

Fig. 7 is a schematic view of a platen structure of a photovoltaic junction box.

In the figure: 1. a junction box body; 2. a wire fixing tube; 3. a bottom plate; 4. a heat radiation fin; 5. a top cover; 6. a first cover plate; 7. a second cover plate; 8. a cross bar; 9. a slot; 10. a thread groove; 11. a threaded rod; 12. ear plates; 13. a plug pin; 14. inserting plate; 15. a moving block; 16. a filter screen; 17. a laminating ring; 18. a sealing column; 19. sealing grooves; 20. an electronic component; 21. a side groove; 22. a pressing plate; 23. friction blocks.

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.

Example 1

Referring to fig. 1-7, in an embodiment of the present utility model, a photovoltaic junction box includes a junction box body 1 and a fixing mechanism disposed at one side of the junction box body 1 for limiting a position of a cable, an electronic component 20 is mounted on an inner wall of a bottom of the junction box body 1, a ventilation mechanism for dissipating heat is disposed at a top of the junction box body 1, and a top cover 5 is mounted on an outer wall of the top of the junction box body 1;

the utility model discloses a cable junction box, including terminal box body 1, fixed establishment includes two fixed spool 2, and both ends of one side outer wall of terminal box body 1 all open have the circular slot, and fixed spool 2 all installs in the circular slot, fixed spool 2's circumference outer wall top all has threaded rod 11 through the screw thread rotation grafting, and threaded rod 11's top outer wall all fixedly connected with pole cap, and threaded rod 11's bottom outer wall all fixedly connected with clamp plate 22, two the equal fixedly connected with friction blocks 23 that a plurality of equidistance distribute of bottom outer wall of clamp plate 22, and friction block 23 are made for rubber, and when cable and terminal box body 1 finish through fixed spool 2 wiring, can control clamp plate 22 upwards or downwards through pole cap rotation threaded rod 11, laminating through clamp plate 22 and cable, can fix the position of cable, and rethread a plurality of friction blocks 23 can increase the frictional force between clamp plate 22 and the cable, and be convenient for fix, have avoided the cable to slip from terminal box body 1.

Wherein, ventilation mechanism includes filter screen 16, the top outer wall of top cap 5 is opened there is square groove, and filter screen 16 installs in the top outer wall of top cap 5, the top outer wall of top cap 5 is provided with the mechanism that opens and shuts that is used for sheltering from filter screen 16, through square groove, can ventilate for terminal box body 1 inside, does benefit to radiating electronic component 20, through filter screen 16, can avoid big material impurity to get into the inside of terminal box body 1, and then avoid producing the influence to electronic component 20.

Wherein, open and shut the mechanism and include two horizontal poles 8, horizontal pole 8 all open the top outer wall both sides of top cap 5 have the transverse groove, and horizontal pole 8 fixed connection has between the both ends inner wall of transverse groove, two the circumference outer wall both ends of horizontal pole 8 all slide and cup joint movable block 15, wherein two the top outer wall fixedly connected with first apron 6 of movable block 15, two in addition the top outer wall fixedly connected with second apron 7 of movable block 15, slot 9 that a plurality of equidistance distribute is all opened at the top outer wall both ends of top cap 5, the equal fixedly connected with otic placode 12 of the relative other end outer wall of first apron 6 and second apron 7, all open the vertical groove with slot 9 looks adaptation of otic placode 12, all peg graft in the vertical groove and have bolt 13, and peg graft in slot 9 through the vertical groove, through sliding movable block 15, can adjust the position of first apron 6 or second apron 7, when using terminal box body 1 in the open air, can avoid meeting raining, and shelter from 16 mutually with second apron 7, can be with 16 from falling from filter screen, the position that the filter screen 1 falls into the position of the second apron 1, and the position of the second apron is favorable to the inside can be avoided in the fixed position of the electronic part 1, and the second apron is passed through the slot 9, and the position of the electronic part is avoided.

The outer walls of the two ends of the junction box body 1 are fixedly connected with a plurality of radiating fins 4 which are distributed at equal intervals, and the contact area with air can be increased through the radiating fins 4, so that the radiating effect of the junction box body 1 is enhanced.

Wherein, the bottom outer wall fixedly connected with bottom plate 3 of terminal box body 1, and four corners of the top outer wall of bottom plate 3 all open thread groove 10, through bottom plate 3 and four thread grooves 10, can be convenient for the fixed terminal box body 1 of staff's position, do benefit to the use.

Wherein, the bottom outer wall fixedly connected with seal post 18 of top cap 5, the top outer wall of terminal box body 1 is opened has the seal groove 19 with seal post 18 looks adaptation, and seal post 18 peg graft in seal groove 19, the bottom outer wall fixedly connected with laminating ring 17 of top cap 5, four outer walls of laminating ring 17 all laminate with four inner walls of terminal box body 1 mutually, when in outdoor use terminal box body 1, when meetting rainy weather, through seal groove 19 and seal post 18, can avoid the rainwater to get into through the gap between top cap 5 and the terminal box body 1, through laminating ring 17, can further avoid the rainwater infiltration.

Example 2

Referring to fig. 2 and 6, unlike embodiment 1, the outer wall of the other end of the first cover plate 6 is provided with a side slot 21, and a striking plate is mounted on the inner wall of one end of the side slot 21, the outer wall of one end of the second cover plate 7 is fixedly connected with a plugboard 14 adapted to the side slot 21, and the plugboard 14 is made of iron, so that rainwater can be prevented from penetrating from the gap between the first cover plate 6 and the second cover plate 7 through the plugboard 14 and the side slot 21, and when the plugboard 14 is completely inserted into the side slot 21, the striking plate is collided by the plugboard 14 to play a role of reminding a worker.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Claims

1. The utility model provides a photovoltaic terminal box, includes terminal box body (1) and sets up in the fixed establishment that one side of terminal box body (1) is used for carrying out spacing to the position of cable, its characterized in that: an electronic element (20) is mounted on the inner wall of the bottom of the junction box body (1), a ventilation mechanism for heat dissipation is arranged at the top of the junction box body (1), and a top cover (5) is mounted on the outer wall of the top of the junction box body (1);

fixed establishment includes two solid spool (2), and round slot has all been opened at one side outer wall both ends of terminal box body (1), and solid spool (2) are all installed in the round slot, the circumference outer wall top of solid spool (2) is all pegged graft through the screw thread rotation has threaded rod (11), and the equal fixedly connected with pole cap of top outer wall of threaded rod (11), and the equal fixedly connected with clamp plate (22) of the bottom outer wall of threaded rod (11), two the equal fixedly connected with friction block (23) that a plurality of equidistance of bottom outer wall of clamp plate (22) distribute, and friction block (23) are rubber and make.

2. A photovoltaic junction box according to claim 1, characterized in that: the ventilation mechanism comprises a filter screen (16), a square groove is formed in the top outer wall of the top cover (5), the filter screen (16) is arranged on the top outer wall of the top cover (5), and an opening and closing mechanism for shielding the filter screen (16) is arranged on the top outer wall of the top cover (5).

3. A photovoltaic junction box according to claim 2, characterized in that: the mechanism that opens and shuts includes two horizontal poles (8), and horizontal groove has all been opened to top outer wall both sides of top cap (5), and horizontal pole (8) fixedly connected with is between the both ends inner wall of horizontal groove, two the circumference outer wall both ends of horizontal pole (8) all slide and cup joint movable block (15), wherein two the top outer wall fixedly connected with first apron (6) of movable block (15), other two the top outer wall fixedly connected with second apron (7) of movable block (15), slot (9) that a plurality of equidistance distributed are all opened at top outer wall both ends of top cap (5), the equal fixedly connected with otic placode (12) of relative other end outer wall of first apron (6) and second apron (7), all open the perpendicular groove with slot (9) looks adaptation in the top outer wall of otic placode (12), all peg graft in perpendicular groove have bolt (13), bolt (13) are pegged graft in slot (9) through perpendicular groove.

4. A photovoltaic junction box according to any one of claims 1-2, characterized in that: the outer walls of the two ends of the junction box body (1) are fixedly connected with a plurality of radiating fins (4) which are distributed at equal intervals.

5. The photovoltaic junction box of claim 4, wherein: the bottom outer wall of terminal box body (1) fixedly connected with bottom plate (3), and four corners of the top outer wall of bottom plate (3) all open threaded groove (10).

6. A photovoltaic junction box according to claim 1, characterized in that: the sealing device is characterized in that a sealing column (18) is fixedly connected to the outer wall of the bottom of the top cover (5), a sealing groove (19) matched with the sealing column (18) is formed in the outer wall of the top of the junction box body (1), the sealing column (18) is inserted into the sealing groove (19), a laminating ring (17) is fixedly connected to the outer wall of the bottom of the top cover (5), and four outer walls of the laminating ring (17) are laminated with four inner walls of the junction box body (1).

7. A photovoltaic junction box according to claim 3, characterized in that: the outer wall of the other end of the first cover plate (6) is provided with a side groove (21), the inner wall of one end of the side groove (21) is provided with a striking piece, the outer wall of one end of the second cover plate (7) is fixedly connected with a plugboard (14) which is matched with the side groove (21), and the plugboard (14) is made of iron.