Photovoltaic combiner box convenient for air circulation

Abstract

The utility model relates to the technical field of photovoltaic combiner boxes, and discloses a photovoltaic combiner box convenient for air circulation, which comprises a photovoltaic combiner box main body, a movable shaft is fixedly arranged on one side of the front end of the photovoltaic combiner box main body, and a protective door is fixedly arranged on one side of the movable shaft. The front end of the photovoltaic combiner box body is fixedly provided with a wire inlet connector, a communication interface and a wire outlet connector, when the photovoltaic combiner box is used, the connectors can be protected and prevented from dust through the arranged protective door, and the problem that most interfaces are directly exposed to be used at present is solved; the combiner box has the advantages that air in equipment can circulate, heat can be discharged, the protection effect of a connecting port is improved through the arranged connecting structure, the sealing performance of a gap at the penetrating position of a connecting line and the equipment is guaranteed, the waterproof and dustproof efficiency is improved, the combiner box is convenient to mount and dismount through the arranged connecting sliding groove, and a better use prospect can be brought.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic combiner boxes, in particular to a photovoltaic combiner box which is convenient for air circulation. Background Art

[0002] The combiner box is a wiring device that ensures the orderly connection and convergence function of photovoltaic modules in the photovoltaic power generation system. This device can ensure that the q circuit is easy to cut off during maintenance and inspection of the photovoltaic system, and reduce the scope of power outage when a photovoltaic system failure occurs. For some large photovoltaic systems, in order to improve stability and facilitate system maintenance, it is generally necessary to add a DC convergence device between the photovoltaic modules and the inverter, connect the photovoltaic modules in series to the photovoltaic array lightning protection combiner box for convergence, and then connect to the inverter.

[0003] However, it still has some disadvantages, for example: the air flow inside the junction box is poor, the heat dissipation effect is not good, and the heat needs to be discharged. If the heat is not dissipated in time, the temperature inside the junction box will rise. When the temperature is too high, the electronic components in the junction box will have great safety hazards, which will affect the performance and service life of the equipment, and the dustproof effect is not good. At present, most of the interfaces are directly exposed to the outside for use. External dust enters the interface, which is easy to cause the interface to be blocked or damaged, causing the junction box to be unable to be connected, thereby reducing the service life of the interface. In addition, the existing junction box is usually connected with screws when in use, and the screws will rust, which makes it inconvenient to disassemble and repair, thus affecting the use and inconvenient to install. It is installed and fixed with screws, and installation and disassembly require tightening and loosening multiple screws, which is time-consuming and labor-intensive, and inconvenient for later maintenance.

[0004] In order to solve the above problems, the present application proposes a photovoltaic combiner box that facilitates air circulation. Utility Model Content

[0005] The utility model aims to provide a photovoltaic combiner box which is convenient for air circulation, so as to solve the problems of poor internal air flow and poor dustproof effect in the prior art mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic junction box that is convenient for air circulation, comprising a photovoltaic junction box body, a movable shaft is fixedly installed on one side of the front end of the photovoltaic junction box body, a protective door is fixedly installed on one side of the movable shaft, an incoming line connection port, a communication interface and an outgoing line connection port are fixedly installed on the front end of the photovoltaic junction box body, and the communication interface is located at the lower end of the incoming line connection port, and the outgoing line connection port is located at the lower end of the communication interface.

[0007] Preferably, a ventilation structure is fixedly installed on the upper end of the photovoltaic combiner box body, a delivery pipe is fixedly installed on the lower end of the ventilation structure, and an air suction port is fixedly installed on the inner side of the delivery pipe.

[0008] Preferably, a connecting slot is fixedly installed at the lower end of the photovoltaic junction box body, a connecting bolt is detachably connected to one side of the connecting slot, a connecting slider is slidably connected to one side of the connecting slot, a base is fixedly installed at the lower end of the connecting slider, and mounting holes are opened on both sides of the base.

[0009] Preferably, the communication interface includes a connecting line, a protective cover, a sealing gasket, an insert block, a connecting ring, a groove and a locking rod. The lower end of the connecting line is fixedly connected to the protective cover, the lower end of the protective cover is fixedly installed with a sealing gasket, both sides of the lower end of the sealing gasket are fixedly installed with insert blocks, the lower end of the sealing gasket is detachably connected to the connecting ring, grooves are opened on both sides of the inner cavity of the connecting ring, and locking rods are movably installed on both sides of the connecting ring.

[0010] Preferably, the number of the incoming line connection ports and the outgoing line connection ports is multiple groups, and the incoming line connection ports, the communication interface and the outgoing line connection ports are located on the inner side of the protective door.

[0011] Preferably, the conveying pipeline is arranged in a U shape, the number of the air suction ports is multiple, and the air suction ports are respectively located at both ends of the inner cavity of the photovoltaic junction box body, and one side of the connecting bolt passes through the inner cavity of one side of the connecting slide groove and is detachably connected to one side of the connecting slider.

[0012] Preferably, one side of the insert block is detachably connected to the inner cavity of the groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can protect the connection port from dust by providing a protective door, thereby solving the problem that most of the current interfaces are directly exposed to the outside for use, and external dust enters the interface, which is easy to cause the interface to be blocked or damaged, resulting in the junction box being unable to be connected, thereby reducing the service life of the interface. Through the cooperation of the ventilation structure, conveying pipeline and air suction port, the air inside the equipment can circulate and the heat can be discharged. The ventilation structure can be used to transport the air inside the equipment through the air suction port and the conveying pipeline.

[0015] The utility model increases the protective effect of the connection port through the cooperation of the connection line, protective cover, sealing gasket, plug-in block, connection ring, groove and locking rod in the communication interface, ensures the sealing of the gap where the connection line and the equipment pass through, improves the efficiency of waterproof and dustproof, protects the parts inside the equipment, and also increases the service life of the connection line. The sealing gasket at the lower end of the protective cover is tightly fitted with the connection ring and installed. At the same time, the plug-in block is aligned and inserted into the groove, and the groove mouth is blocked and fixed by the locking rod, so that the connection port is fixed and installed, and quick disassembly and installation can be achieved. Through the cooperation of the provided connection slide groove, connection bolt, connection slider, base and installation hole, the installation and disassembly of the junction box is facilitated. The connection slide groove is slid in through the connection slider, and then the connection slide groove and the connection slider are fixedly connected by the connection bolt, thereby avoiding the problem that the installation and disassembly need to tighten and loosen multiple screws, which is time-consuming and labor-intensive and inconvenient for later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a photovoltaic combiner box that facilitates air circulation in the utility model;

[0017] Figure 2 This is a structural diagram of a photovoltaic combiner box with a protective cover opened to facilitate air circulation according to the utility model;

[0018] Figure 3 This is a schematic diagram of a ventilation structure of a photovoltaic combiner box that facilitates air circulation according to the utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of a photovoltaic combiner box that facilitates air circulation in the utility model;

[0020] Figure 5 This is a schematic diagram of the connection socket structure of a photovoltaic combiner box that facilitates air circulation in the utility model;

[0021] In the figure: 1. PV combiner box body; 2. movable shaft; 3. protective door; 4. incoming line connection port; 5. communication interface; 6. outgoing line connection port; 7. ventilation structure; 8. conveying pipeline; 9. air inlet; 10. connecting slide; 11. connecting bolt; 12. connecting slider; 13. base; 14. mounting hole; 501. connecting wire; 502. protective cover; 503. sealing gasket; 504. plug-in block; 505. connecting ring; 506. groove; 507. locking rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-Figure 3 The utility model provides a technical solution: a photovoltaic junction box that is convenient for air circulation, including a photovoltaic junction box body 1, a movable shaft 2 is fixedly installed on one side of the front end of the photovoltaic junction box body 1, and a protective door 3 is fixedly installed on one side of the movable shaft 2. Through the set protective door 3, the connection port can be protected from dust, which solves the problem that most of the current interfaces are directly exposed to the outside for use, and external dust enters the interface, which easily causes the interface to be blocked or damaged, causing the junction box to be unable to be connected, thereby reducing the service life of the interface. The front end of the photovoltaic junction box body 1 is fixedly installed with an incoming line connection port 4, a communication interface 5 and The outlet connection port 6, and the communication interface 5 are located at the lower end of the incoming connection port 4, and the outlet connection port 6 is located at the lower end of the communication interface 5. A ventilation structure 7 is fixedly installed on the upper end of the photovoltaic junction box body 1, and a conveying pipe 8 is fixedly installed on the lower end of the ventilation structure 7. An air suction port 9 is fixedly installed on the inner side of the conveying pipe 8, which can allow the air inside the equipment to circulate and discharge the heat. The air inside the equipment is conveyed through the air suction port 9 and the conveying pipe 8 through the ventilation structure 7. The number of the incoming connection port 4 and the outgoing connection port 6 is multiple groups, and the incoming connection port 4, the communication interface 5 and the outgoing connection port 6 are located on the inner side of the protective door 3.

[0024] In this embodiment, Figure 4-Figure 5As shown, a connecting slot 10 is fixedly installed at the lower end of the photovoltaic junction box body 1, and a connecting bolt 11 is detachably connected to one side of the connecting slot 10. A connecting slider 12 is slidably connected to one side of the connecting slot 10. A base 13 is fixedly installed at the lower end of the connecting slider 12. Both sides of the base 13 are provided with mounting holes 14. The communication interface 5 includes a connecting line 501, a protective sleeve 502, a sealing gasket 503, an insert 504, a connecting ring 505, a groove 506 and a locking rod 507. The lower end of the connecting line 501 is fixedly connected to the protective sleeve 502, and the lower end of the protective sleeve 502 is fixed. A sealing gasket 503 is installed, and plug blocks 504 are fixedly installed on both sides of the lower end of the sealing gasket 503. The lower end of the sealing gasket 503 is detachably connected to the connecting ring 505. Grooves 506 are provided on both sides of the inner cavity of the connecting ring 505. Locking rods 507 are movably installed on both sides of the connecting ring 505. Through the cooperation of the connecting wire 501, the protective cover 502, the sealing gasket 503, the plug block 504, the connecting ring 505, the groove 506 and the locking rod 507 in the communication interface 5, the protective effect of the connecting port is increased, and the gap between the connecting wire 501 and the equipment is ensured. The sealing performance is improved, the waterproof and dustproof efficiency is improved, the internal parts of the equipment are protected, and the service life of the connecting line 501 is increased. The sealing gasket 503 at the lower end of the protective sleeve 502 is tightly fitted with the connecting ring 505, and the plug block 504 is aligned with the groove 506 and inserted. The groove 506 is blocked and fixed by the locking rod 507, so that the connecting port is fixedly installed, and quick disassembly and installation can be achieved. The conveying pipeline 8 is set to be U-shaped, and the number of air suction ports 9 is multiple groups, and the air suction ports 9 are respectively located at both ends of the inner cavity of the photovoltaic junction box body 1, and one side of the connecting bolt 11 passes through the connecting The inner cavity on one side of the connecting slot 10 is detachably connected to one side of the connecting slider 12, and one side of the plug block 504 is detachably connected to the inner cavity of the groove 506. Through the cooperation of the connecting slot 10, the connecting bolt 11, the connecting slider 12, the base 13 and the mounting hole 14, the installation and disassembly of the junction box are convenient. The connecting slot 10 is slid in through the connecting slider 12, and then the connecting slot 10 and the connecting slider 12 are fixedly connected through the connecting bolt 11, thereby avoiding the need to tighten and loosen multiple screws during installation and disassembly, which is time-consuming and labor-intensive and inconvenient for later maintenance.

[0025] Working principle:

[0026] By setting the protective door 3, the connection port can be protected from dust, which solves the problem that most of the current interfaces are directly exposed to the outside for use, and the dust from the outside enters the interface, which is easy to cause the interface to be blocked or damaged, causing the junction box to be unable to be connected, thereby reducing the service life of the interface. Through the cooperation of the ventilation structure 7, the conveying pipe 8, and the air intake 9, the air inside the equipment can circulate and the heat can be discharged. The ventilation structure 7 allows the air inside the equipment to be conveyed through the conveying pipe 8 through the air intake 9. Through the cooperation of the connecting wire 501, the protective sleeve 502, the sealing gasket 503, the plug block 504, the connecting ring 505, the groove 506 and the locking rod 507 in the communication interface 5, the protection effect of the connection port is increased, and the sealing of the gap between the connecting wire 501 and the equipment is ensured. The sealing property improves the efficiency of waterproofing and dustproofing, protects the internal parts of the equipment, and increases the service life of the connecting line 501. The sealing gasket 503 at the lower end of the protective cover 502 is tightly installed with the connecting ring 505, and the plug block 504 is aligned with the groove 506 and inserted, and the groove 506 is blocked and fixed by the locking rod 507, so that the connecting port is fixedly installed, and it can also achieve quick disassembly and installation. Through the cooperation of the set connecting slide 10, connecting bolt 11, connecting slider 12, base 13 and mounting hole 14, the installation and disassembly of the junction box is convenient. The connecting slide 10 is slid in through the connecting slider 12, and then the connecting slide 10 and the connecting slider 12 are fixedly connected through the connecting bolt 11, thereby avoiding the need to tighten and loosen multiple screws during installation and disassembly, which is time-consuming and labor-intensive, and inconvenient for later maintenance.

[0027] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A photovoltaic combiner box that facilitates air circulation, comprising a photovoltaic combiner box body (1), characterized in that: A movable shaft (2) is fixedly mounted on one side of the front end of the photovoltaic combiner box body (1), a protective door (3) is fixedly mounted on one side of the movable shaft (2), an incoming line connection port (4), a communication interface (5) and an outgoing line connection port (6) are fixedly mounted on the front end of the photovoltaic combiner box body (1), the communication interface (5) is located at the lower end of the incoming line connection port (4), and the outgoing line connection port (6) is located at the lower end of the communication interface (5).

2. A photovoltaic combiner box that facilitates air circulation according to claim 1, characterized in that: A ventilation structure (7) is fixedly mounted on the upper end of the photovoltaic combiner box body (1), a delivery pipe (8) is fixedly mounted on the lower end of the ventilation structure (7), and an air suction port (9) is fixedly mounted on the inner side of the delivery pipe (8).

3. A photovoltaic combiner box that facilitates air circulation according to claim 2, characterized in that: A connecting groove (10) is fixedly installed at the lower end of the photovoltaic junction box body (1), a connecting bolt (11) is detachably connected to one side of the connecting groove (10), a connecting slider (12) is slidably connected to one side of the connecting groove (10), a base (13) is fixedly installed at the lower end of the connecting slider (12), and mounting holes (14) are provided on both sides of the base (13).

4. A photovoltaic combiner box for facilitating air circulation according to claim 3, characterized in that: The communication interface (5) comprises a connecting line (501), a protective sleeve (502), a sealing gasket (503), an insert block (504), a connecting ring (505), a groove (506) and a locking rod (507); the lower end of the connecting line (501) is fixedly connected to the protective sleeve (502); the lower end of the protective sleeve (502) is fixedly installed with a sealing gasket (503); both sides of the lower end of the sealing gasket (503) are fixedly installed with insert blocks (504); the lower end of the sealing gasket (503) is detachably connected to the connecting ring (505); both sides of the inner cavity of the connecting ring (505) are provided with grooves (506); and both sides of the connecting ring (505) are movably installed with locking rods (507).

5. A photovoltaic combiner box for facilitating air circulation according to claim 1, characterized in that: The number of the incoming line connection ports (4) and the outgoing line connection ports (6) is multiple, and the incoming line connection ports (4), the communication interface (5) and the outgoing line connection ports (6) are located on the inner side of the protective door (3).

6. A photovoltaic combiner box that facilitates air circulation according to claim 3, characterized in that: The conveying pipe (8) is configured to be U-shaped, the air suction ports (9) are provided in a plurality of groups, and the air suction ports (9) are respectively located at two ends of the inner cavity of the photovoltaic junction box body (1), and one side of the connecting bolt (11) penetrates the inner cavity of one side of the connecting slide groove (10) and is detachably connected to one side of the connecting slider (12).

7. A photovoltaic combiner box for facilitating air circulation according to claim 4, characterized in that: One side of the insert block (504) is detachably connected to the inner cavity of the groove (506).

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