Centralized photovoltaic combiner box

Abstract

The utility model provides a centralized photovoltaic combiner box, which relates to the technical field of photovoltaic combiner boxes and comprises a box body, an upper heat dissipation structure and a mounting plate, a mounting cavity is arranged in the box body, the mounting plate is assembled in the middle of the mounting cavity, the upper heat dissipation structure is mounted on the upper portion of the mounting cavity, and the lower heat dissipation structure is mounted on the lower portion of the mounting cavity. The upper heat dissipation structure and the lower heat dissipation structure are vertically symmetrical about the center line of the box body, meanwhile, the mounting plate is of a detachable structure, a box door is hinged to a front end opening of the box body, an observation window is arranged in the middle of the box door, a control panel is arranged on the right side of the middle of the box body, and upper clamping plates and lower clamping plates are arranged on the left side wall and the right side wall in the box body correspondingly. And the upper clamping plate and the lower clamping plate are oppositely arranged up and down. According to the utility model, heat of devices installed in the combiner box can be conveniently dissipated in an upper part and a lower part, heat dissipation is faster and more convenient, heat loss is reduced, the combiner box is safe and durable, water and dust are prevented from entering the box body, and the combiner box is safer and more reliable to use.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic combiner boxes, and in particular to a centralized photovoltaic combiner box. Background Art

[0002] A combiner box means that users can connect a certain number of photovoltaic cells of the same specifications in series to form photovoltaic strings, and then connect several photovoltaic strings in parallel to the photovoltaic combiner box. After the photovoltaics are combined in the photovoltaic combiner box, they are used together through a controller, a DC distribution cabinet, a photovoltaic inverter, and an AC distribution cabinet to form a complete photovoltaic power generation system and achieve grid connection with the city power grid.

[0003] In the specification of a photovoltaic combiner box in the prior art (publication number CN218526290U), it is mentioned that "the box is used to accommodate photovoltaic components, and a box door is arranged on the side of the box, the box door is hinged to the box, and the bottom of the box has a first hole, and the first hole is used to accommodate the passage of wires. The lighting mechanism includes a lighting lamp, a photo sensor, a switch and an abutment member, the lighting lamp is arranged in the box, the photo sensor is arranged outside the box, the switch is arranged in the box, the abutment member is arranged on the inner side of the box door, and the abutment member can be close to and away from the switch". However, the photovoltaic combiner box in the prior art is inconvenient to dissipate heat inside, and the heat is not easy to dissipate, resulting in the temperature of the internal components not decreasing, affecting the service life of the components, and is not safe and reliable. Utility Model Content

[0004] In order to overcome the defects of the prior art, a centralized photovoltaic combiner box is now provided to solve the problems in the prior art that the photovoltaic combiner box is difficult to dissipate heat inside, the heat is not easy to dissipate, the temperature of the internal devices does not drop, the service life of the devices is affected, and it is not safe and reliable.

[0005] To achieve the above-mentioned purpose, a centralized photovoltaic junction box is provided, including a box body, an upper heat dissipation structure and a mounting plate, wherein an installation cavity is opened in the box body, and a mounting plate is assembled in the middle of the installation cavity, an upper heat dissipation structure is installed in the upper part of the installation cavity, and a lower heat dissipation structure is installed in the lower part of the installation cavity, and the upper heat dissipation structure and the lower heat dissipation structure are symmetrical about the center line of the box body, and the mounting plate is a disassembly structure.

[0006] Preferably, a box door is hinged at the front end of the box body, an observation window is arranged in the middle of the box door, and a control panel is arranged on the right side of the middle of the box body.

[0007] Preferably, the left and right side walls of the box body are both provided with an upper card plate and a lower card plate, and the upper card plate and the lower card plate are arranged opposite to each other up and down, and the upper card plate and the lower card plate are symmetrical about the center line of the box body.

[0008] Preferably, an upper heat dissipation cavity is opened in the upper heat dissipation structure, and flow guide pipes are connected between the left and right sides of the lower part of the upper heat dissipation structure and the box body, and the other port of the flow guide pipe leads to the outside of the box. At the same time, a lower heat dissipation cavity is opened in the lower heat dissipation structure.

[0009] Preferably, the left and right side surfaces of the upper heat dissipation structure are provided with inclined air intake holes, and an upper fixed plate is provided in the middle of the upper heat dissipation structure, the left and right parts of the upper fixed plate are provided with side ventilation mesh frames, and turbo fans are installed in the side ventilation mesh frames, and upper baffles are provided on the left and right parts of the upper side of the upper heat dissipation structure, and there is a certain gap between the two groups of upper baffles.

[0010] Preferably, four groups of partitions are arranged on the mounting plate, and handles are arranged in the middle of the left and right ends of the mounting plate, and upper card slots are opened on the upper sides of the left and right sides of the mounting plate, and lower card slots are opened on the lower parts of the left and right sides of the mounting plate, and the upper card slots and the upper card plates, and the lower card slots and the lower card plates are all assembled in an inlaid manner.

[0011] The beneficial effects of the utility model are:

[0012] 1. The upper and lower card plates provided on the left and right inner walls of the box body of the utility model are used for assembling the mounting plate, which facilitates the horizontal embedding of the mounting plate between the upper and lower card plates, and the installation is quick and convenient, and it is convenient to disassemble, repair or replace later.

[0013] 2. The upper and lower heat dissipation structures of the utility model facilitate the heat inside the box to be evacuated in two parts, and the cheap guide pipe at the lower part of the upper heat dissipation structure facilitates the drainage of accumulated water to both sides to prevent the accumulated water from entering the box.

[0014] 3. The utility model mainly uses a turbo fan to drive the hot air flow in the upper part of the box to the external environment, which makes the heat dissipation faster and more convenient, helps to quickly cool down the components in the box, and the setting of the upper baffle plays the effect of keeping out rain and dust.

[0015] 4. The mounting plate of the utility model is installed by fitting and assembling the upper card slot and the upper card plate, and the lower card slot and the lower card plate. The installation method is simple and fast, and it is also convenient for later disassembly, and the use is more flexible and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view schematic diagram of an embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the split opening of the mounting plate in the box body of the utility model embodiment;

[0019] Figure 4 This is a schematic diagram of the installation plate structure arrangement of an embodiment of the utility model.

[0020] In the figure: 1. box body; 10. installation cavity; 11. upper card plate; 12. lower card plate; 13. guide tube; 14. box door; 15. observation window; 16. control panel; 2. upper heat dissipation structure; 20. upper heat dissipation cavity; 21. inclined air intake hole; 22. upper fixing plate; 23. side ventilation mesh frame; 24. upper baffle; 25. turbo fan; 3. lower heat dissipation structure; 30. lower heat dissipation cavity; 4. installation plate; 40. upper card slot; 41. handle; 42. partition; 43. lower card slot. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is further described in detail in combination with the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model. Specific details such as specific system structures and technologies are proposed in order to more thoroughly understand the embodiments of the utility model. The described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. However, it should be clear to those skilled in the art that the utility model can also be implemented in other embodiments without these specific details. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present disclosure.

[0022] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0023] Figure 1 It is a front view schematic diagram of an embodiment of the utility model, Figure 2 The internal structure of the embodiment of the utility model is shown in FIG. Figure 3 Schematic diagram of the split opening of the installation plate in the box body of the utility model embodiment and Figure 4 This is a schematic diagram of the installation plate structure arrangement of an embodiment of the utility model.

[0024] Reference Figures 1 to 4 As shown, the utility model provides a centralized photovoltaic junction box, including a box body 1, an upper heat dissipation structure 2 and a mounting plate 4, a mounting cavity 10 is opened in the box body 1, and a mounting plate 4 is assembled in the middle of the mounting cavity 10, an upper heat dissipation structure 2 is installed in the upper part of the mounting cavity 10, and a lower heat dissipation structure 3 is installed in the lower part of the mounting cavity 10, and the upper heat dissipation structure 2 and the lower heat dissipation structure 3 are symmetrical about the center line of the box body 1, and the mounting plate 4 is a disassembly structure.

[0025] In this embodiment, a door 14 is hinged at the front port of the box body 1, and an observation window 15 is provided in the middle of the door 14, and a control panel 16 is provided on the right side of the middle of the box body 1; upper card plates 11 and lower card plates 12 are provided on the left and right side walls inside the box body 1, and the upper card plates 11 and the lower card plates 12 are arranged opposite to each other up and down, and the upper card plates 11 and the lower card plates 12 are symmetrical about the center line of the box body 1.

[0026] As a preferred embodiment, the upper clamping plate 11 and the lower clamping plate 12 arranged on the left and right side walls of the box body 1 of the utility model are used for assembling the mounting plate 4, which facilitates horizontally embedding the mounting plate 4 between the upper clamping plate 11 and the lower clamping plate 12, and the installation is quick and convenient, and it is convenient to disassemble, repair or replace later.

[0027] In this embodiment, an upper heat dissipation cavity 20 is opened in the upper heat dissipation structure 2, and a guide tube 13 is connected between the left and right sides of the lower part of the upper heat dissipation structure 2 and the box body 1, and the other port of the guide tube 13 leads to the outside of the box body 1, and a lower heat dissipation cavity 30 is opened in the lower heat dissipation structure 3.

[0028] As a preferred embodiment, the upper heat dissipation structure 2 and the lower heat dissipation structure 3 of the utility model are arranged to facilitate the evacuation of the heat inside the box body 1 into the upper and lower parts, and the cheap guide pipe 13 at the lower part of the upper heat dissipation structure 2 facilitates the drainage of the accumulated water to both sides to prevent the accumulated water from entering the box body 1.

[0029] In this embodiment, the left and right sides of the upper heat dissipation structure 2 are provided with inclined air intake holes 21, and an upper fixed plate 22 is provided in the middle of the upper heat dissipation structure 2, and the left and right parts of the upper fixed plate 22 are provided with side ventilation mesh frames 23, and a turbo fan 25 is installed in the side ventilation mesh frame 23, and the upper left and right parts of the upper side of the upper heat dissipation structure 2 are provided with upper baffles 24, and there is a certain gap between the two groups of upper baffles 24.

[0030] As a preferred embodiment, the utility model mainly uses a turbo fan 25 to drive the hot air flow in the upper part of the box 1 to be transported to the external environment, which makes heat dissipation faster and more convenient, helps to quickly cool down the components in the box 1, and the setting of the upper baffle 24 plays the effect of keeping out rain and dust.

[0031] In this embodiment, four groups of partitions 42 are provided on the mounting plate 4, and handles 41 are provided at the middle of the left and right ends of the mounting plate 4, and upper card slots 40 are provided on the upper sides of the left and right sides of the mounting plate 4, and lower card slots 43 are provided on the lower parts of the left and right sides of the mounting plate 4. The upper card slots 40 and the upper card plate 11, and the lower card slots 43 and the lower card plate 12 are all assembled and engaged.

[0032] As a preferred embodiment, the mounting plate 4 of the utility model is installed by means of an upper card slot 40 and an upper card plate 11, and a lower card slot 43 and a lower card plate 12. The installation method is simple and fast, and it is also convenient for later disassembly, making it more flexible and convenient to use.

[0033] The utility model can effectively solve the problems in the prior art that the photovoltaic combiner box is difficult to dissipate heat inside, the heat is not easy to dissipate, the temperature of the internal components does not drop, the service life of the components is affected, and it is not safe and reliable. The utility model facilitates the heat dissipation of the components installed in the combiner box in the upper and lower parts, and the heat dissipation is faster and more convenient, which reduces heat loss, makes it safe and durable, and also prevents water and dust from entering the box, making it safer and more reliable to use.

[0034] The above embodiments are used to explain the present invention rather than to limit the present invention. Any modifications and changes made to the present invention within the spirit of the present invention and the scope of the claims for protection shall be included in the protection scope of the present invention.

Claims

1. A centralized photovoltaic combiner box, characterized in that: The invention comprises a box body (1), an upper heat dissipation structure (2) and a mounting plate (4); the box body (1) is provided with a mounting cavity (10), and the middle part of the mounting cavity (10) is assembled with the mounting plate (4); the upper part of the mounting cavity (10) is installed with the upper heat dissipation structure (2), and the lower part of the mounting cavity (10) is installed with the lower heat dissipation structure (3); the upper heat dissipation structure (2) and the lower heat dissipation structure (3) are symmetrical about the center line of the box body (1), and the mounting plate (4) is a detachable structure.

2. A centralized photovoltaic combiner box according to claim 1, characterized in that: A box door (14) is hingedly connected to the front end of the box body (1), an observation window (15) is arranged in the middle of the box door (14), and a control panel (16) is arranged on the right side of the middle of the box body (1).

3. A centralized photovoltaic combiner box according to claim 1, characterized in that: An upper card plate (11) and a lower card plate (12) are provided on both left and right side walls of the box body (1), and the upper card plate (11) and the lower card plate (12) are arranged opposite to each other vertically, and the upper card plate (11) and the lower card plate (12) are symmetrical about the center line of the box body (1).

4. A centralized photovoltaic combiner box according to claim 1, characterized in that: An upper heat dissipation cavity (20) is provided in the upper heat dissipation structure (2), and flow guide pipes (13) are connected between the left and right sides of the lower part of the upper heat dissipation structure (2) and the box body (1), and the other end of the flow guide pipe (13) leads to the outside of the box body (1), and a lower heat dissipation cavity (30) is provided in the lower heat dissipation structure (3).

5. A centralized photovoltaic combiner box according to claim 1, characterized in that: The left and right sides of the upper heat dissipation structure (2) are both provided with air intake oblique holes (21), and an upper fixing plate (22) is provided in the middle of the upper heat dissipation structure (2), and the left and right parts of the upper fixing plate (22) are both provided with side ventilation net frames (23), and a turbo fan (25) is installed in the side ventilation net frames (23), and upper baffles (24) are both provided on the left and right parts of the upper side of the upper heat dissipation structure (2), and a certain gap is provided between the two groups of upper baffles (24).

6. A centralized photovoltaic combiner box according to claim 1, characterized in that: Four groups of partitions (42) are arranged on the mounting plate (4), and handles (41) are arranged in the middle of both left and right ends of the mounting plate (4), and upper card slots (40) are opened on the upper sides of both left and right sides of the mounting plate (4), and lower card slots (43) are opened on the lower parts of both left and right sides of the mounting plate (4), and the upper card slots (40) and the upper card plate (11), and the lower card slots (43) and the lower card plate (12) are all assembled and engaged.

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