CN219499340U

CN219499340U - Solar photovoltaic combiner box

Info

Publication number: CN219499340U
Application number: CN202320380839.7U
Authority: CN
Inventors: 王文兰; 白雄怀
Original assignee: Inner Mongolia University of Technology
Current assignee: Inner Mongolia University of Technology
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-08-08
Anticipated expiration: 2033-03-03

Abstract

The utility model belongs to the technical field of photovoltaic confluence boxes, in particular to a solar photovoltaic confluence box which comprises a photovoltaic confluence box main body and a protective cover, wherein a wiring terminal is embedded and installed at the bottom end of the photovoltaic confluence box main body, and the solar photovoltaic confluence box further comprises a rubber guide tube, a cooling fan and an air guide tube; the protective cover is detachably arranged at the bottom end of the photovoltaic combiner box main body, a lead hole is formed in the bottom surface of the protective cover at a position corresponding to the wiring terminal, and the rubber lead pipe is arranged in the lead hole in a clamping manner and used for allowing a cable to pass through; according to the solar photovoltaic junction box, the wiring terminal is safely protected through the protective cover and the rubber lead pipe, so that moist air is prevented from entering, cold air is circulated into the inner space of the photovoltaic junction box main body by utilizing the cooperation of the cooling fan, the air guide pipe, the transition pipe and the cooling holes, heat is dissipated in the inner space of the photovoltaic junction box main body, and the running performance of the photovoltaic junction box main body is guaranteed.

Description

Solar photovoltaic combiner box

Technical Field

The utility model belongs to the technical field of photovoltaic junction boxes, and particularly relates to a solar photovoltaic junction box.

Background

The photovoltaic panel is a device for generating electricity by utilizing solar energy, and the solar energy photovoltaic intelligent junction box, which is also called a solar junction box, is used for carrying out primary junction on the input of the photovoltaic cell array and is used for reducing the connection line of the photovoltaic cell array connected to the inverter, optimizing the system structure and improving the reliability and maintainability;

through retrieval, china patent with the application number of CN202123402771.8 and the grant notice number of CN216451339U discloses a convenient solar photovoltaic junction box, which comprises a junction box shell, a connecting terminal is arranged at the bottom end of the junction box shell, a clamping block is connected to the bottom end of the junction box shell at one side of the connecting terminal, an anti-rust shell is sleeved on the outer side of the clamping block, fixing screw holes are formed in the end faces of the two sides of the anti-rust shell, fixing screws are connected with inner side threads of the fixing screw holes, a moisture absorption partition plate is embedded in the inner side of the anti-rust shell, a silicone grease cavity is formed between the moisture absorption partition plate and the anti-rust shell, and after all wires are connected, namely the anti-rust shell is sleeved on the outer side of the clamping block again, so that the anti-rust shell is fixed, moisture absorption silicone grease in the anti-rust shell can absorb moist air in the anti-rust shell through the moisture absorption hole, so that the wire can normally transmit data, and poor contact caused by rust is prevented;

according to the scheme, the safety protection of the wiring terminal part of the photovoltaic junction box is realized by utilizing a series of protection structures, so that the moist air is prevented from corroding the wiring terminal, but the cooling is not facilitated, the circulation of cooling air is hindered, and in the working process of the photovoltaic junction box, current can pass through the wiring terminal, so that high heat is generated in the photovoltaic junction box, and the working performance of the photovoltaic junction box is influenced;

in order to solve the above problems, a solar photovoltaic combiner box is provided in the present application.

The above information disclosed in the background section is only for enhancement of understanding of the background of the utility model and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides the solar photovoltaic combiner box which has the characteristics of convenience in use, easiness in heat dissipation and good protection performance.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the solar photovoltaic junction box comprises a photovoltaic junction box main body, a protective cover, a rubber guide tube, a cooling fan and an air guide tube, wherein a wiring terminal is embedded and installed at the bottom end of the photovoltaic junction box main body;

the protective cover is detachably arranged at the bottom end of the photovoltaic combiner box main body, a lead hole is formed in the bottom surface of the protective cover at a position corresponding to the wiring terminal, and the rubber lead pipe is arranged in the lead hole in a clamping manner and used for allowing a cable to pass through;

the photovoltaic collection flow box comprises a photovoltaic collection flow box body, an air guide pipe, a protection cover, a heat radiation fan, a transition pipe and a heat radiation hole, wherein the bottom surface of the photovoltaic collection flow box body is provided with the heat radiation hole, the air guide pipe is fixed in the protection cover, an air inlet and an air outlet are respectively arranged at two ends of the air guide pipe, the heat radiation fan is embedded and arranged on the protection cover and communicated with the air inlet, the top surface of the air guide pipe is communicated with the transition pipe, and the top end of the transition pipe is communicated with the heat radiation hole.

As a preferable technical scheme of the photovoltaic junction box, a mounting frame is further fixed on the bottom surface of the photovoltaic junction box main body, and the top port of the protective cover is sleeved on the mounting frame.

As a preferable technical scheme of the utility model, a rubber sealing frame is adhered and fixed on the top surface of the protective cover.

As a preferable technical scheme of the photovoltaic junction box, the photovoltaic junction box further comprises a U-shaped connecting frame, a pull rod and a reset spring, wherein the U-shaped connecting frame is hinged to the end face of the photovoltaic junction box main body, the pull rod penetrates through the U-shaped connecting frame, a limiting disc is fixed to the top end of the pull rod, the reset spring is sleeved on the pull rod and is located between the U-shaped connecting frame and the limiting disc, a hanging rod is fixed to the end face of the protective cover, and a hanging ring is fixed to the bottom end of the pull rod and sleeved on the hanging rod.

As a preferable technical scheme of the utility model, two spacing rings which are distributed at intervals are fixed on the outer side surface of the rubber lead tube, the inner side space of the two spacing rings is a clamping opening, and the width of the clamping opening is equal to the wall thickness of the protective cover.

As a preferable technical scheme of the utility model, a sealing sleeve is fixed on the inner wall of the rubber guide tube, and the sealing sleeve is a hollow cylindrical rubber member.

Compared with the prior art, the utility model has the beneficial effects that: according to the solar photovoltaic junction box, the wiring terminal is safely protected through the protective cover and the rubber lead pipe, so that moist air is prevented from entering, cold air is circulated into the inner space of the photovoltaic junction box main body by utilizing the cooperation of the cooling fan, the air guide pipe, the transition pipe and the cooling holes, heat is dissipated in the inner space of the photovoltaic junction box main body, and the running performance of the photovoltaic junction box main body is guaranteed.

Additional advantages and benefits of the present application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present application.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

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

FIG. 2 is a schematic diagram of an axial measurement structure of an air guide pipe in the utility model;

FIG. 3 is a schematic view of the axial structure of a rubber lead tube according to the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 1 according to the present utility model;

in the figure: 1. a photovoltaic combiner box body; 2. a connection terminal; 3. a mounting frame; 4. a protective cover; 5. a lead hole; 6. a rubber lead tube; 7. a heat radiation hole; 8. a heat radiation fan; 9. an air guide pipe; 10. a rubber seal frame; 11. a hanging rod; 12. an air inlet; 13. an air outlet; 14. a transition pipe; 15. a limit ring; 16. a clamping opening; 17. sealing sleeve; 18. a U-shaped connecting frame; 19. a pull rod; 20. a limiting disc; 21. a return spring; 22. hanging rings.

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. 1-4, the present utility model provides the following technical solutions: the solar photovoltaic junction box comprises a photovoltaic junction box main body 1, a protective cover 4, a connecting terminal 2, a rubber guide tube 6, a cooling fan 8 and a guide tube 9, wherein the connecting terminal 2 is embedded and installed at the bottom end of the photovoltaic junction box main body 1;

in this embodiment, as shown in fig. 1, the protection cover 4 is detachably mounted at the bottom end of the photovoltaic junction box main body 1, a lead hole 5 is formed at the bottom surface of the protection cover 4 corresponding to the position of the wiring terminal 2, and the rubber lead tube 6 is mounted in the lead hole 5 in a clamping manner for allowing a cable to penetrate, so that when in use, the protection cover 4 is detachably mounted at the bottom end of the photovoltaic junction box main body 1, the rubber lead tube 6 is mounted in the lead hole 5 in a clamping manner, and the cable is butted with the wiring terminal 2 after passing through the rubber lead tube 6, so that the wiring terminal 2 is safely protected, and the invasion of humid air is avoided;

in the embodiment, as shown in fig. 1 and fig. 2, a heat dissipation hole 7 is formed in the bottom surface of a photovoltaic junction box main body 1, an air guide pipe 9 is fixed in a protective cover 4, an air inlet 12 and an air outlet 13 are respectively arranged at two ends of the air guide pipe 9, a heat dissipation fan 8 is embedded and arranged on the protective cover 4 and communicated with the air inlet 12, a transition pipe 14 is communicated with the top surface of the air guide pipe 9, the top end of the transition pipe 14 is communicated with the heat dissipation hole 7, the heat dissipation fan 8 is started, the heat dissipation fan 8 blows cooling air into the air guide pipe 9, the cooling air enters the photovoltaic junction box main body 1 from the transition pipe 14, the internal space of the photovoltaic junction box main body 1 dissipates heat, the operation performance of the photovoltaic junction box main body 1 is ensured, and the air outlet 13 is used for realizing the circulation of the cooling air; in addition, the air inlet 12 and the air outlet 13 are not directly conducted, the middle part of the air guide pipe 9 is closed, so that cooling air is ensured to enter the photovoltaic combiner box main body 1 from the corresponding transition pipe 14, and finally returns to the air guide pipe 9 from the transition pipe 14 at the other side and is discharged from the air outlet 13.

As shown in fig. 1, in this embodiment, a mounting frame 3 is further fixed on the bottom surface of the photovoltaic junction box main body 1, and a top port of the protective cover 4 is sleeved on the mounting frame 3, so that the protective cover 4 is mounted.

As an alternative embodiment, as shown in fig. 1, in this embodiment, a rubber sealing frame 10 is adhered and fixed on the top surface of the protective cover 4, so as to improve the tightness of the installation of the protective cover 4.

As shown in fig. 1 and fig. 4, as an alternative embodiment, the photovoltaic junction box further comprises a U-shaped connecting frame 18, a pull rod 19 and a return spring 21, wherein the U-shaped connecting frame 18 is hinged to the end face of the photovoltaic junction box main body 1, the pull rod 19 penetrates through the U-shaped connecting frame 18, a limiting disc 20 is fixed at the top end of the pull rod 19, the return spring 21 is sleeved on the pull rod 19 and is positioned between the U-shaped connecting frame 18 and the limiting disc 20, a hanging rod 11 is fixed at the end face of the protective cover 4, a hanging ring 22 is fixed at the bottom end of the pull rod 19 and is sleeved on the hanging rod 11, when the protective cover 4 is installed, the top port of the protective cover 4 is sleeved on the installation frame 3, then the hanging ring 22 is pulled down, the return spring 21 is contracted, and the hanging ring 22 is sleeved on the hanging rod 11, so that stable installation of the protective cover 4 can be realized; when the hanging ring 22 is sleeved on the hanging rod 11, the reset spring 21 is contracted to the shortest state, namely the limit disk 20 is not moved downwards by the support of the reset spring 21.

As shown in fig. 1 and fig. 3, in this embodiment, two spacing rings 15 are fixed on the outer side surface of the rubber lead tube 6, and the inner side space of the two spacing rings 15 is a clamping opening 16, the width of the clamping opening 16 is equal to the wall thickness of the protective cover 4, after the rubber lead tube 6 penetrates through the lead hole 5, the part of the protective cover 4 around the penetrating lead hole 5 is clamped by the clamping opening 16, so that the clamping installation of the rubber lead tube 6 is realized.

As shown in fig. 1 and fig. 3, in this embodiment, a sealing sleeve 17 is fixed on the inner wall of the rubber lead tube 6, and the sealing sleeve 17 is a hollow cylindrical rubber member, which has flexibility, and when the cable penetrates through the sealing sleeve 17, the sealing sleeve 17 is elastically deformed, and the inner wall of the sealing sleeve 17 tightly presses the outer wall of the cable, so that the sealing performance is improved, and the invasion of humid air is avoided.

The working principle and the using flow of the utility model are as follows: when the solar photovoltaic junction box is used, the protective cover 4 is detachably arranged at the bottom end of the photovoltaic junction box main body 1, the rubber lead tube 6 is clamped and arranged in the lead hole 5, and the cable is butted with the wiring terminal 2 after passing through the rubber lead tube 6, so that the wiring terminal 2 is safely protected, and the invasion of humid air is avoided;

the cooling fan 8 is started, the cooling air is blown out from the cooling fan 8 into the air guide pipe 9, the cooling air enters the photovoltaic confluence box main body 1 from the transition pipe 14, the internal space of the photovoltaic confluence box main body 1 is cooled, the running performance of the photovoltaic confluence box main body 1 is guaranteed, and the air outlet 13 is used for realizing circulation of the cooling air.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a solar photovoltaic conflux case, includes photovoltaic conflux case main part (1) and protection casing (4) photovoltaic conflux case main part (1)'s bottom embedding is installed binding post (2), its characterized in that: the heat-radiating device also comprises a rubber guide tube (6), a heat-radiating fan (8) and a guide tube (9);

the protective cover (4) is detachably arranged at the bottom end of the photovoltaic combiner box main body (1), a lead hole (5) is formed in the position, corresponding to the wiring terminal (2), of the bottom surface of the protective cover (4), and the rubber lead pipe (6) is arranged in the lead hole (5) in a clamping mode and used for allowing a cable to penetrate through;

the photovoltaic combiner box is characterized in that a radiating hole (7) is formed in the bottom surface of the photovoltaic combiner box main body (1), the air guide pipe (9) is fixed in the protective cover (4), an air inlet (12) and an air outlet (13) are respectively formed in two ends of the air guide pipe (9), the radiating fan (8) is embedded and mounted on the protective cover (4) and communicated with the air inlet (12), a transition pipe (14) is communicated with the top surface of the air guide pipe (9), and the top end of the transition pipe (14) is communicated with the radiating hole (7).

2. The solar photovoltaic combiner box according to claim 1, wherein: the bottom surface of photovoltaic conflux case main part (1) is still fixed with installing frame (3), the top port cover of protection casing (4) is established on installing frame (3).

3. The solar photovoltaic combiner box according to claim 1, wherein: and a rubber sealing frame (10) is adhered and fixed on the top surface of the protective cover (4).

4. The solar photovoltaic combiner box according to claim 1, wherein: still include U type link (18), pull rod (19) and reset spring (21), U type link (18) articulates the terminal surface of photovoltaic collection flow box main part (1), pull rod (19) run through U type link (18), and be in the top of pull rod (19) is fixed with spacing dish (20), reset spring (21) cover is established on pull rod (19) and be in U type link (18) with between spacing dish (20) the terminal surface of protection casing (4) is fixed with peg (11) the bottom of pull rod (19) is fixed with link (22) and overlaps and establish on peg (11).

5. The solar photovoltaic combiner box according to claim 1, wherein: two spacing rings (15) which are distributed at intervals are fixed on the outer side surface of the rubber guide tube (6), the inner side space of each spacing ring (15) is a clamping opening (16), and the width of each clamping opening (16) is equal to the wall thickness of the protective cover (4).

6. The solar photovoltaic combiner box according to claim 1, wherein: a sealing sleeve (17) is fixed on the inner wall of the rubber guide tube (6), and the sealing sleeve (17) is a hollow cylindrical rubber member.