Outdoor photovoltaic grid-connected cabinet

Abstract

The utility model discloses an outdoor photovoltaic grid-connected cabinet which comprises a main cabinet body, the top ends of the left side and the right side of the main cabinet body are fixedly connected with supports, the top ends of the supports are fixedly connected with top covers, the left side and the right side in the main cabinet body are fixedly connected with vertical partition plates, and a moisture-proof plate is slidably connected between the two vertical partition plates. An inner cabinet door is rotationally connected to the front face of the vertical partition plate, an outer cabinet door is rotationally connected to the front face of the main cabinet body, a sun protection plate is fixedly connected to the back face of the main cabinet body, and supporting legs are fixedly connected to the left end and the right end of the bottom of the main cabinet body. The top cover comprises an outer cover, a groove, a bottom frame, a heat insulation plate and a spring buckle, the left end and the right end of the bottom of the outer cover are fixedly connected to the top end of the support, and compared with the prior art, the photovoltaic grid-connected cabinet can effectively prevent electrical components in the photovoltaic grid-connected cabinet from being damaged by environments such as rainfall, solarization and overhigh external humidity through the design.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic grid-connected cabinets, and particularly relates to an outdoor photovoltaic grid-connected cabinet. Background Technique

[0002] A photovoltaic grid-connected cabinet usually consists of components such as a photovoltaic inverter, a power protection switch, a current transformer, an electric energy meter, a temperature sensor, a communication module, etc. The main function of the photovoltaic grid-connected cabinet is to convert the direct current generated by the photovoltaic power generation system into alternating current and incorporate it into the power grid to provide safe and stable power output. It also has functions such as power distribution, electric energy metering, protection control, etc., including overcurrent protection, overvoltage protection, island protection, anti-counterflow protection, harmonic governance, reactive power compensation, etc. At the same time, it has the function of displaying the operation parameters and status indication of the photovoltaic power generation system;

[0003] Due to the large number of electrical components inside the photovoltaic grid-connected cabinet, when the photovoltaic grid-connected cabinet is placed outdoors, it will inevitably be affected by rainfall, sunlight, dust deposition, or when the outdoor temperature and humidity are too high, which will cause damage to the electrical components inside the photovoltaic grid-connected cabinet and affect the service life of the electrical components;

[0004] Therefore, the utility model provides an outdoor photovoltaic grid-connected cabinet to solve the above-mentioned problems. Content of the Utility Model

[0005] 1) Technical problems to be solved by the utility model

[0006] In view of the deficiencies of the prior art, the utility model designs an outdoor photovoltaic grid-connected cabinet, which aims to solve the technical problem that the service life of electrical components is easily affected by environmental changes in the prior art.

[0007] 2) Technical solution

[0008] To achieve the above object, the utility model provides the following technical solution:

[0009] An outdoor photovoltaic grid-connected cabinet includes a main cabinet body. At the top ends of the left and right sides of the main cabinet body, brackets are fixedly connected. At the top ends of the two groups of brackets, a top cover is fixedly connected. On the left and right sides inside the main cabinet body, vertical partitions are fixedly connected. A moisture-proof board is slidably connected between the two groups of vertical partitions. An inner cabinet door is rotatably connected to the front of the vertical partition. An outer cabinet door is rotatably connected to the front of the main cabinet body. A sunshade board is fixedly connected to the back of the main cabinet body. At the left and right ends of the bottom of the main cabinet body, support feet are fixedly connected;

[0010] The top cover includes an outer cover, a groove, a bottom frame, a heat insulation board and a spring buckle. The left and right ends of the bottom of the outer cover are fixedly connected to the top of the bracket. Two groups of the grooves are respectively opened at the left and right ends of the bottom of the outer cover. Both groups of the grooves are adapted to be used with the bracket. The bottom frame is rotatably connected to the front end of the bottom of the outer cover. The heat insulation board is movably connected to the inside of the outer cover and is located directly above the bottom frame. Two groups of the spring buckles are fixedly connected to the rear end of the bottom of the outer cover. The spring buckle is adapted to be used with the bottom frame.

[0011] As a preferred solution of the present utility model, limiting chutes are opened on the inner sides of the two groups of upright partition boards. Magnets are fixedly connected to the front ends of the two groups of limiting chutes. The moisture-proof board is slidably connected to the two groups of limiting chutes.

[0012] As a preferred solution of the present utility model, desiccants are filled in the moisture-proof board. Iron sealing caps are fixedly connected to both ends of the moisture-proof board. A plurality of ventilation holes are evenly opened on the surface of the moisture-proof board.

[0013] As a preferred solution of the present utility model, a plurality of wire inlet holes are opened at the bottom of the main cabinet body and between the two groups of upright partition boards. Plastic waterproof rings are fixedly connected to the inner sides of the plurality of wire inlet holes.

[0014] As a preferred solution of the present utility model, sealing rings are inlaid around the inner side of the inner cabinet door. Observation glasses are fixedly connected to the middle of both the inner cabinet door and the outer cabinet door.

[0015] As a preferred solution of the present utility model, the sunshade board is C-shaped. A plurality of small round holes are opened on the surface of the sunshade board.

[0016] As a preferred solution of the present utility model, gaps are left between the two groups of upright partition boards and the main cabinet body. Ventilation windows are opened at the positions corresponding to the upright partition boards on the left and right sides of the main cabinet body.

[0017] 3) Beneficial effects

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] Through design, during the use of the utility model, under the sunlight irradiation, the heat insulation board can block the heat on the outer cover and prevent the high temperature from being conducted to the main cabinet body. The two groups of vertical partitions divide the left and right sides of the main cabinet body into two layers. The inner cabinet door is rotatably connected to the front of the vertical partition, and the outer cabinet door is rotatably connected to the front of the main cabinet body. The inner cabinet door is adapted to the two groups of vertical partitions, and the outer cabinet door and the inner cabinet door form a double-layer cabinet door, effectively increasing the heat insulation effect. The sunshade board is C-shaped, so that there is a gap between the sunshade board and the back of the main cabinet body. A number of small round holes are opened on the surface of the sunshade board, and the number of small round holes facilitates the air circulation, effectively reducing the temperature on the back of the main cabinet body. The air between the two groups of vertical partitions and the main cabinet body can circulate through the ventilation window, ensuring that the temperature inside the main cabinet body can be discharged in time when encountering high temperature. Through all-round protection, the temperature inside the outdoor photovoltaic grid-connected cabinet can be greatly reduced under the sunlight irradiation, effectively protecting the service life of electrical components;

[0020] The top cover can prevent the top of the main cabinet body from being drenched by rainwater, reducing the possibility of rainwater entering the main cabinet body. Sealing rings are inlaid around the inner side of the inner cabinet door, and the sealing rings seal the air between the two groups of vertical partitions, preventing external moisture from entering. The plastic waterproof ring effectively prevents the intrusion of moisture outside the main cabinet body. A number of ventilation holes are evenly opened on the surface of the moisture-proof board, and the number of ventilation holes enables the desiccant to contact the air inside the main cabinet body and adsorb the moisture in the air. The iron seal cover is detachable, facilitating the replacement of the desiccant filled inside the moisture-proof board, better ensuring the dryness inside the outdoor photovoltaic grid-connected cabinet, and thus effectively protecting the service life of electrical components. Description of the Drawings

[0021] Figure 1 is a three-dimensional schematic diagram of the overall structure of the utility model;

[0022] Figure 2 is a rear view of the overall structure of the utility model;

[0023] Figure 3 is a schematic diagram of the top cover structure in the utility model;

[0024] Figure 4 is Figure 1 the enlarged view at A in;

[0025] Figure 5 is a cross-sectional view of the moisture-proof board in the utility model;

[0026] Figure 6 is Figure 3 the enlarged view at B in;

[0027] Figure 7 is a cross-sectional view of the spring buckle in the utility model.

[0028] In the figure: 1, main cabinet body; 2, bracket; 3, top cover; 301, outer cover; 302, groove; 303, bottom frame; 304, heat insulation board; 305, spring buckle; 4, vertical partition board; 5, moisture-proof board; 6, inner cabinet door; 7, outer cabinet door; 8, sun-proof board; 9, support foot; 10, limit chute; 11, magnet; 12, desiccant; 13, iron sealing cover; 14, ventilation hole; 15, wire inlet hole; 16, plastic waterproof ring; 17, sealing ring; 18, observation glass; 19, small round hole; 20, ventilation window. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment:

[0031] The embodiment of the present invention provides an outdoor photovoltaic grid-connected cabinet, which aims to solve the technical problem that the service life of electrical components is easily affected by environmental changes in the prior art;

[0032] Please refer to Figures 1 - 7 , the present invention provides a technical solution:

[0033] An outdoor photovoltaic grid-connected cabinet includes a main cabinet body 1. Brackets 2 are fixedly connected to the tops of the left and right sides of the main cabinet body 1. The tops of the two groups of brackets 2 are fixedly connected with a top cover 3. The two groups of brackets 2 support and fix the top cover 3. The top cover 3 is fixedly connected to the two groups of brackets 2 through bolts. While the top cover 3 provides sun protection, it can also prevent the top of the main cabinet body 1 from being drenched by rain, reducing the possibility of rainwater entering the main cabinet body 1. Vertical partition boards 4 are fixedly connected to the left and right sides inside the main cabinet body 1. The two groups of vertical partition boards 4 divide the left and right sides of the main cabinet body 1 into two layers, effectively increasing the heat insulation effect. A moisture-proof board 5 is slidably connected between the two groups of vertical partition boards 4. The front of the vertical partition board 4 is rotatably connected with an inner cabinet door 6. The front of the main cabinet body 1 is rotatably connected with an outer cabinet door 7. The inner cabinet door 6 is adapted to the two groups of vertical partition boards 4. The outer cabinet door 7 and the inner cabinet door 6 form a double-layer cabinet door. A sun-proof board 8 is fixedly connected to the back of the main cabinet body 1. The sun-proof board 8 provides sun protection for the back of the main cabinet body 1. Support feet 9 are fixedly connected to the left and right ends of the bottom of the main cabinet body 1. The support feet 9 support the main cabinet body 1 and keep the bottom of the main cabinet body 1 away from the ground, effectively preventing the main cabinet body 1 from being soaked by rainwater on the ground;

[0034] First, please refer to Figure 1 , Figure 2 , Figure 3, Figure 6 and Figure 7 , the specific structure of the top cover 3 is as follows:

[0035] The top cover 3 includes an outer cover 301, grooves 302, a bottom frame 303, a heat insulation plate 304, and spring fasteners 305. The left and right ends of the bottom of the outer cover 301 are fixedly connected to the top of the bracket 2. Two groups of grooves 302 are respectively opened at the left and right ends of the bottom of the outer cover 301. The two groups of grooves 302 are all adapted to the bracket 2. The two groups of grooves 302 can make the connection between the outer cover 301 and the two groups of brackets 2 more stable. The bottom frame 303 is rotatably connected to the front end of the bottom of the outer cover 301. The heat insulation plate 304 is movably connected to the inside of the outer cover 301 and is located directly above the bottom frame 303. Two groups of spring fasteners 305 are fixedly connected to the rear end of the bottom of the outer cover 301. The spring fasteners 305 are adapted to the bottom frame 303. Under the irradiation of sunlight, the heat insulation plate 304 can block the heat on the outer cover 301 and prevent high temperature from being conducted to the main cabinet body 1. The bottom frame 303 is used to fix the heat insulation plate 304, and the spring fasteners 305 are used to fix the bottom frame 303, which is convenient for replacing the heat insulation plate 304. The inside of the spring fastener 305 is provided with double-row springs, making the spring fastener 305 more firmly clamped.

[0036] Further, please refer to Figure 1 , Figure 4 and Figure 5 , on the inner sides of the two groups of vertical partitions 4, limiting chutes 10 are opened. Magnets 11 are fixedly connected to the front ends of the two groups of limiting chutes 10. The moisture-proof board 5 is slidably connected to the two groups of limiting chutes 10. Desiccant 12 is filled inside the moisture-proof board 5. Iron sealing caps 13 are fixedly connected to both ends of the moisture-proof board 5. The magnet 11 can generate suction on the iron sealing cap 13 to fix the moisture-proof board 5 in the limiting chute 10. A number of ventilation holes 14 are evenly opened on the surface of the moisture-proof board 5. The number of ventilation holes 14 enables the desiccant 12 to contact the air inside the main cabinet body 1 and adsorb the moisture in the air. The iron sealing cap 13 is detachable, which is convenient for replacing the desiccant 12 filled inside the moisture-proof board 5.

[0037] Further, please refer to Figure 1 and Figure 4 , a number of wire inlet holes 15 are opened at the bottom of the main cabinet body 1 and between the two groups of vertical partitions 4. Plastic waterproof rings 16 are fixedly connected to the inner sides of the number of wire inlet holes 15. The wire inlet holes 15 can facilitate the connection of wires to enter the main cabinet body 1. The plastic waterproof rings 16 effectively prevent the intrusion of moisture from outside the main cabinet body 1 and better maintain the dryness inside the main cabinet body 1.

[0038] Further, please refer to Figure 1 , Figure 2 and Figure 3, a sealing ring 17 is inlaid around the inner side of the inner cabinet door 6. The sealing ring 17 seals the air between the two groups of vertical partition boards 4, preventing external moisture from entering. Observation glasses 18 are fixedly connected to the middle positions of both the inner cabinet door 6 and the outer cabinet door 7, which facilitate the direct observation of internal electrical components by the staff.

[0039] Further, please refer to Figure 2 , the sunshade board 8 is C-shaped, creating a gap between the sunshade board 8 and the back of the main cabinet body 1. A number of small round holes 19 are opened on the surface of the sunshade board 8, which facilitate the circulation of air and effectively reduce the temperature of the back of the main cabinet body 1.

[0040] Even further, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , gaps are left between the two groups of vertical partition boards 4 and the main cabinet body 1. Ventilation windows 20 are opened at the positions on the left and right sides of the main cabinet body 1 corresponding to the vertical partition boards 4. The air between the two groups of vertical partition boards 4 and the main cabinet body 1 can circulate through the ventilation windows 20, ensuring that the internal temperature of the main cabinet body 1 can be discharged in time when it encounters high temperature.

[0041] Working process of the present utility model:

[0042] During the use of the present utility model, under the sunlight irradiation, the heat insulation board 304 can block the heat on the outer cover 301, preventing the high temperature from being conducted to the main cabinet body 1. The two groups of vertical partition boards 4 divide the left and right sides of the main cabinet body 1 into double layers. The inner cabinet door 6 is rotatably connected to the front of the vertical partition board 4, and the outer cabinet door 7 is rotatably connected to the front of the main cabinet body 1. The inner cabinet door 6 is adapted to the two groups of vertical partition boards 4. The outer cabinet door 7 and the inner cabinet door 6 form a double-layer cabinet door, effectively increasing the heat insulation effect. The sunshade board 8 is C-shaped, creating a gap between the sunshade board 8 and the back of the main cabinet body 1. A number of small round holes 19 are opened on the surface of the sunshade board 8, which facilitate the circulation of air and effectively reduce the temperature of the back of the main cabinet body 1. The air between the two groups of vertical partition boards 4 and the main cabinet body 1 can circulate through the ventilation windows 20, ensuring that the internal temperature of the main cabinet body 1 can be discharged in time when it encounters high temperature;

[0043] The top cover 3 can also prevent the top of the main cabinet body 1 from being drenched by rain, reducing the possibility of rainwater entering the main cabinet body 1. A sealing ring 17 is inlaid around the inner side of the inner cabinet door 6. The sealing ring 17 seals the air between the two groups of vertical partition boards 4, preventing external moisture from entering. The plastic waterproof ring 16 effectively prevents the intrusion of moisture from outside the main cabinet body 1. A number of ventilation holes 14 are evenly opened on the surface of the moisture-proof board 5, enabling the desiccant 12 to contact the air inside the main cabinet body 1 and adsorb the moisture in the air. The iron cover 13 is detachable, facilitating the replacement of the desiccant 12 filled inside the moisture-proof board 5.

[0044] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An outdoor photovoltaic grid-connected cabinet, comprising a main cabinet body (1), characterized in that: At the top of both the left and right sides of the main cabinet body (1), brackets (2) are fixedly connected. At the top of the brackets (2), a top cover (3) is fixedly connected. On both the left and right sides inside the main cabinet body (1), vertical partitions (4) are fixedly connected. A moisture-proof board (5) is slidably connected between the two groups of vertical partitions (4). The front of the vertical partition (4) is rotatably connected to an inner cabinet door (6). The front of the main cabinet body (1) is rotatably connected to an outer cabinet door (7). The back of the main cabinet body (1) is fixedly connected to a sunshade board (8). At both the left and right ends of the bottom of the main cabinet body (1), support feet (9) are fixedly connected; The top cover (3) includes an outer cover (301), a groove (302), a bottom frame (303), a heat insulation board (304), and a spring buckle (305). At the left and right ends of the bottom of the outer cover (301), they are fixedly connected to the top of the brackets (2). The two groups of grooves (302) are respectively opened at the left and right ends of the bottom of the outer cover (301). The two groups of grooves (302) are all adapted to be used with the brackets (2). The bottom frame (303) is rotatably connected to the front end of the bottom of the outer cover (301). The heat insulation board (304) is movably connected inside the outer cover (301) and is located directly above the bottom frame (303). The two groups of spring buckles (305) are all fixedly connected to the rear end of the bottom of the outer cover (301). The spring buckle (305) is adapted to be used with the bottom frame (303).

2. The outdoor photovoltaic grid-connected cabinet according to claim 1, characterized in that: On the inner sides of the two groups of vertical partitions (4), limiting sliding grooves (10) are opened. At the front ends of the two groups of limiting sliding grooves (10), magnets (11) are fixedly connected. The moisture-proof board (5) is slidably connected to the two groups of limiting sliding grooves (10).

3. An outdoor photovoltaic grid-connected cabinet according to claim 1, characterized in that: The inside of the moisture-proof board (5) is filled with a desiccant (12). At both ends of the moisture-proof board (5), iron covers (13) are fixedly connected. A plurality of ventilation holes (14) are evenly opened on the surface of the moisture-proof board (5).

4. An outdoor photovoltaic grid-connected cabinet according to claim 1, characterized in that: At the bottom of the main cabinet body (1) and between the two groups of vertical partitions (4), a plurality of wire inlet holes (15) are opened. Inside the plurality of wire inlet holes (15), plastic waterproof rings (16) are fixedly connected.

5. The outdoor photovoltaic grid-connected cabinet according to claim 1, wherein: Sealing rings (17) are inlaid around the inside of the inner cabinet door (6). Observation glasses (18) are fixedly connected at the middle positions of the inner cabinet door (6) and the outer cabinet door (7).

6. The outdoor photovoltaic grid-connected cabinet according to claim 1, characterized in that: The sunshade board (8) is C-shaped. A plurality of small round holes (19) are opened on the surface of the sunshade board (8).

7. An outdoor photovoltaic grid-connected cabinet according to claim 1, characterized in that: A gap is left between the two groups of vertical partitions (4) and the main cabinet body (1). Ventilation windows (20) are opened at the positions corresponding to the vertical partitions (4) on both the left and right sides of the main cabinet body (1).

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