Grid-connected cabinet for photovoltaic power generation

Abstract

The grid-connected cabinet comprises a grid-connected cabinet body, a ventilation box is fixedly connected to one side of the grid-connected cabinet body, a heat dissipation groove is formed in the ventilation box, a heat dissipation fan is installed in the heat dissipation groove, a sliding block is slidably connected to the interior of the ventilation box, and a limiting insertion rod is fixedly connected to the bottom of the sliding block; the beneficial effects of the utility model are that through the arrangement of the ventilation box, the heat dissipation groove, the heat dissipation fan, the filter screen, the ventilation holes and the heat dissipation holes, the auxiliary heat dissipation function of the interior of the grid-connected cabinet body is realized, and the situation that the internal temperature is too high to affect the use is prevented; by arranging a fixed block, a travel switch and an illuminating lamp, an auxiliary illuminating function is realized when the box door of the grid-connected cabinet body is opened, and the grid-connected cabinet is convenient to overhaul; and by arranging a connecting block, a connecting rod, a sliding block, a limiting inserting rod and a mounting groove, the function of quickly mounting and dismounting the mounting frame is achieved, the filter screen is conveniently dismounted and cleaned, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of grid-connected cabinets, in particular to a grid-connected cabinet for photovoltaic power generation. Background Art

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect of semiconductor interfaces to directly convert light energy into electrical energy. The grid cabinet is a distribution device that connects the photovoltaic power station and the power grid. It is an "ordinary" high-voltage switch cabinet with a built-in circuit breaker. Because it connects the generator system and the power grid system, is equipped with a complete grid-connected protection device, and plays the role of generator grid connection, it is called a "grid cabinet". During the use of the grid cabinet, the electrical components inside it will generate a certain amount of heat; the grid cabinet in the prior art usually has heat dissipation holes on the grid cabinet to dissipate the heat of the grid cabinet, but the heat dissipation effect of the heat dissipation holes is poor. During the use of the grid cabinet, the electrical components inside the cabinet are prone to overheating and damage, and the grid cabinet cannot be auxiliary illuminated during maintenance, which is inconvenient to use. Therefore, we propose a grid cabinet for photovoltaic power generation. Utility Model Content

[0003] The purpose of the utility model is to provide a grid-connected cabinet for photovoltaic power generation, so as to solve the problem that the grid-connected cabinet proposed in the above-mentioned background technology usually has heat dissipation holes on the grid-connected cabinet to dissipate heat for the grid-connected cabinet, but the heat dissipation effect of the heat dissipation holes is poor, and during the use of the grid-connected cabinet, the electrical components inside the cabinet are prone to overheating and damage, and the grid-connected cabinet cannot be provided with auxiliary lighting when it is repaired.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A grid-connected cabinet for photovoltaic power generation comprises a grid-connected cabinet body, one side of the grid-connected cabinet body is fixedly connected to a ventilation box, a heat dissipation groove is provided inside the ventilation box, a cooling fan is installed inside the heat dissipation groove, a sliding block is slidably connected inside the ventilation box, a limiting plug rod is fixedly connected to the bottom of the sliding block, the limiting plug rod is slidably connected to the ventilation box, one side of the ventilation box is provided with a mounting frame, a filter is fixedly connected to the inside of the mounting frame, a mounting groove used in conjunction with the limiting plug rod is provided on the top of the mounting frame, and a lighting lamp is installed on the inner wall of the grid-connected cabinet body.

[0006] It can be understood that the utility model facilitates ventilation and heat dissipation of the interior of the grid-connected cabinet body by setting the heat dissipation groove and the heat dissipation fan, and drives the limit rod to move by the movement of the sliding block, so that the limit rod enters the interior of the installation groove, limits the position of the installation frame, and facilitates the rapid installation and fixation of the installation frame. The filter net can be used to filter the air during ventilation, and the lighting lamp can be used to provide auxiliary lighting during maintenance.

[0007] Preferably, heat dissipation holes are equidistantly provided on one side of the grid-connected cabinet body.

[0008] It can be understood that the utility model facilitates ventilation and heat dissipation of the interior of the grid-connected cabinet body through the provision of heat dissipation holes.

[0009] Preferably, ventilation holes are equidistantly formed on a side of the power cabinet body away from the heat dissipation holes, and the heat dissipation slots are connected to the power cabinet body through the ventilation holes.

[0010] It can be understood that the utility model facilitates the air blown out by the cooling fan to pass into the interior of the grid-connected cabinet body for heat dissipation through the provision of ventilation holes.

[0011] Preferably, a connecting rod is slidably connected to the outer side of the ventilation box, the sliding block is fixedly connected to the connecting rod, and a return spring is sleeved on the outer side of the connecting rod and located on one side of the sliding block.

[0012] It can be understood that, in the present invention, the connecting rod drives the sliding block to move, and the reset spring drives the sliding block to move and reset.

[0013] Preferably, one end of the connecting rod away from the sliding block is fixedly connected to the connecting block.

[0014] It can be understood that the utility model drives the connecting rod to move by the connecting block, so as to facilitate the installation and disassembly of the installation frame.

[0015] Preferably, a protective cylinder is fixedly connected to the top of the ventilation box, and a protective top cover is threadedly connected to the top of the protective cylinder.

[0016] It can be understood that the utility model protects the connection block by providing the protection tube and the protection top cover to prevent accidental collision.

[0017] Preferably, a fixing block is fixedly connected to the inner wall of the grid-connected cabinet body, a travel switch is fixedly connected to one side of the fixing block, and the lighting lamp is electrically connected to the travel switch.

[0018] It can be understood that the utility model facilitates the start of the lighting lamp when the box door is opened through the provision of the travel switch, thereby assisting the maintenance of the grid-connected cabinet body.

[0019] The beneficial effects achieved by the utility model are as follows: by arranging a ventilation box, a heat dissipation slot, a heat dissipation fan, a filter, ventilation holes and heat dissipation holes, the function of auxiliary heat dissipation of the interior of the grid-connected cabinet body is realized, thereby preventing the internal temperature from being too high and affecting its use; by arranging a fixing block, a travel switch and a lighting lamp, the function of auxiliary lighting is realized when the box door of the grid-connected cabinet body is opened, thereby facilitating its maintenance; by arranging a connecting block, a connecting rod, a sliding block, a limiting plug rod and an installation slot, the function of rapid installation and disassembly of the installation frame is realized, thereby facilitating the disassembly and cleaning of the filter screen and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a cross-sectional view of the utility model;

[0023] Figure 3 It is a side view of the utility model;

[0024] Figure 4 It is an enlarged view of local A of the utility model.

[0025] In the figure: 1. Grid cabinet body; 2. Ventilation box; 3. Heat dissipation holes; 4. Ventilation holes; 5. Cooling fan; 6. Heat dissipation slot; 7. Lighting lamp; 8. Fixing block; 9. Travel switch; 10. Protective cylinder; 11. Protective top cover; 12. Connecting block; 13. Connecting rod; 14. Mounting frame; 15. Limiting rod; 16. Mounting slot; 17. Filter; 18. Sliding block; 19. Reset spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figures 1 to 4 , the utility model provides a technical solution:

[0028] A grid-connected cabinet for photovoltaic power generation comprises a grid-connected cabinet body 1, a ventilation box 2 is fixedly connected to one side of the grid-connected cabinet body 1, a heat dissipation groove 6 is provided inside the ventilation box 2, a cooling fan 5 is installed inside the heat dissipation groove 6, a sliding block 18 is slidably connected to the inside of the ventilation box 2, a limit plug 15 is fixedly connected to the bottom of the sliding block 18, the limit plug 15 is slidably connected to the ventilation box 2, a mounting frame 14 is provided on one side of the ventilation box 2, a filter screen 17 is fixedly connected to the inside of the mounting frame 14, a mounting groove 16 used in conjunction with the limit plug 15 is provided on the top of the mounting frame 14, and a lighting lamp 7 is installed on the inner wall of the grid-connected cabinet body 1.

[0029] It can be understood that the utility model facilitates ventilation and heat dissipation of the interior of the grid-connected cabinet body 1 through the arrangement of the heat dissipation slot 6 and the heat dissipation fan 5, and drives the limit rod 15 to move by the movement of the sliding block 18, so that the limit rod 15 enters the interior of the installation slot 16, limits the position of the installation frame 14, and facilitates the rapid installation and fixation of the installation frame 14. The filter net 17 can be used to filter the air during ventilation, and the lighting lamp 7 can be used to provide auxiliary lighting during maintenance.

[0030] Furthermore, heat dissipation holes 3 are equidistantly provided on one side of the grid cabinet body 1 .

[0031] It can be understood that the utility model facilitates ventilation and heat dissipation of the interior of the grid-connected cabinet body 1 through the provision of the heat dissipation holes 3 .

[0032] Furthermore, ventilation holes 4 are equidistantly provided on one side of the power cabinet body 1 away from the heat dissipation holes 3 , and the heat dissipation slots 6 are connected to the power cabinet body 1 through the ventilation holes 4 .

[0033] It can be understood that, in the present invention, the ventilation holes 4 are provided to facilitate the air blown out by the cooling fan 5 to pass into the interior of the grid cabinet body 1 for heat dissipation.

[0034] Furthermore, a connecting rod 13 is slidably connected to the outer side of the ventilation box 2, a sliding block 18 is fixedly connected to the connecting rod 13, and a return spring 19 is sleeved on the outer side of the connecting rod 13 and on one side of the sliding block 18.

[0035] It can be understood that, in the present invention, the connecting rod 13 drives the sliding block 18 to move, and the reset spring 19 drives the sliding block 18 to move and reset.

[0036] Furthermore, one end of the connecting rod 13 away from the sliding block 18 is fixedly connected to the connecting block 12 .

[0037] It can be understood that, in the present invention, the connecting block 12 drives the connecting rod 13 to move, so as to facilitate the installation and disassembly of the installation frame 14 .

[0038] Furthermore, a protective tube 10 is fixedly connected to the top of the ventilation box 2 , and a protective top cover 11 is threadedly connected to the top of the protective tube 10 .

[0039] It is understandable that the utility model protects the connection block 12 by providing the protection tube 10 and the protection top cover 11 to prevent accidental collision.

[0040] Furthermore, a fixing block 8 is fixedly connected to the inner wall of the grid-connected cabinet body 1 , a travel switch 9 is fixedly connected to one side of the fixing block 8 , and the lighting lamp 7 is electrically connected to the travel switch 9 .

[0041] It is understandable that the utility model facilitates starting the lighting lamp 7 when the cabinet door is opened by setting the travel switch 9, thereby assisting the maintenance of the grid-connected cabinet body 1.

[0042] Specifically, when the grid cabinet needs to be assisted in heat dissipation during use, the cooling fan 5 is started to filter the air through the filter 17, and the filtered air is blown into the interior of the grid cabinet body 1 through the cooling fan 5 and the ventilation holes 4, and the hot air is blown out through the heat dissipation holes 3, so that the interior of the grid cabinet body 1 is ventilated and heat is dissipated to prevent the internal temperature of the grid cabinet body 1 from being too high and affecting the use. When the filter 17 needs to be disassembled and cleaned, the protective top cover 11 is unscrewed, and the connecting block 12 is pulled, and the connecting block 12 drives the sliding block 18 through the connecting rod 13 to produce The sliding block 18 drives the limit plug rod 15 to move out of the installation groove 16, and the installation frame 14 can be removed, so as to clean the dust attached to the outside of the filter 17, which is convenient for subsequent use. When inspecting the inside of the grid-connected cabinet body 1, the box door is opened. At this time, the squeezing of the box door on the travel switch 9 disappears, thereby starting the lighting lamp 7. The lighting lamp 7 can be used to provide auxiliary lighting for the inside of the grid-connected cabinet body 1, thereby assisting the inspection. After the inspection is completed, the box door is closed, and the box door squeezes the travel switch 9 again, and the lighting lamp 7 is turned off for easy use.

[0043] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0045] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic power generation grid-connected cabinet, comprising a grid-connected cabinet body (1), characterized in that: A ventilation box (2) is fixedly connected to one side of the grid-connected cabinet body (1), a heat dissipation groove (6) is provided inside the ventilation box (2), a heat dissipation fan (5) is installed inside the heat dissipation groove (6), a sliding block (18) is slidably connected inside the ventilation box (2), a limit plug rod (15) is fixedly connected to the bottom of the sliding block (18), the limit plug rod (15) is slidably connected to the ventilation box (2), a mounting frame (14) is provided on one side of the ventilation box (2), a filter screen (17) is fixedly connected to the inside of the mounting frame (14), a mounting groove (16) used in conjunction with the limit plug rod (15) is provided on the top of the mounting frame (14), and a lighting lamp (7) is installed on the inner wall of the grid-connected cabinet body (1).

2. A photovoltaic power generation grid-connected cabinet according to claim 1, characterized in that: Heat dissipation holes (3) are equidistantly provided on one side of the grid-connected cabinet body (1).

3. A photovoltaic power generation grid-connected cabinet according to claim 2, characterized in that: Ventilation holes (4) are equidistantly provided on a side of the grid cabinet body (1) away from the heat dissipation holes (3), and the heat dissipation slots (6) are connected to the grid cabinet body (1) through the ventilation holes (4).

4. A photovoltaic power generation grid-connected cabinet according to claim 1, characterized in that: The outside of the ventilation box (2) is slidably connected to a connecting rod (13), the sliding block (18) is fixedly connected to the connecting rod (13), and a return spring (19) is sleeved on the outside of the connecting rod (13) and on one side of the sliding block (18).

5. A photovoltaic power generation grid-connected cabinet according to claim 4, characterized in that: One end of the connecting rod (13) away from the sliding block (18) is fixedly connected to the connecting block (12).

6. A photovoltaic power generation grid-connected cabinet according to claim 1, characterized in that: A protective cylinder (10) is fixedly connected to the top of the ventilation box (2), and a protective top cover (11) is threadedly connected to the top of the protective cylinder (10).

7. A photovoltaic power generation grid-connected cabinet according to claim 1, characterized in that: A fixing block (8) is fixedly connected to the inner wall of the grid-connected cabinet body (1), a travel switch (9) is fixedly connected to one side of the fixing block (8), and the lighting lamp (7) is electrically connected to the travel switch (9).

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