Outdoor photovoltaic electrical cabinet

Abstract

The utility model belongs to the field of electrical cabinets, particularly relates to an outdoor photovoltaic electrical cabinet, and aims to solve the problems that an existing cabinet body is only provided with heat dissipation holes, heat dissipation is carried out on the interior of the cabinet body under natural conditions, external air enters and exits directly, air circulation in the cabinet body is carried out under the natural conditions, the actual heat dissipation effect is poor, and when the external temperature is high, the outdoor photovoltaic electrical cabinet is inconvenient to use. According to the technical scheme, the heat dissipation cabinet comprises a bottom plate and a cabinet body, the corners of the outer side of the cabinet body are arc-shaped, the four corners of the bottom of the cabinet body are fixedly connected with supporting columns used for enabling the cabinet body to be away from the plane, the bottoms of the four supporting columns are fixedly connected with the top of the same bottom plate, and the bottoms of the four supporting columns are fixedly connected with the bottom of the same bottom plate. According to the electrical cabinet, the heat dissipation mechanism and the shielding mechanism are arranged, so that the electrical cabinet has good heat dissipation performance, normal operation of internal electrical equipment in a high-temperature environment can be ensured, the influence of severe weather on the heat dissipation mechanism can be effectively prevented, and the outdoor adaptability of the electrical cabinet is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical cabinets, in particular to an outdoor photovoltaic electrical cabinet. Background Art

[0002] Photovoltaic power station refers to a photovoltaic power generation system that uses solar energy and special materials such as crystalline silicon panels, inverters and other electronic components to connect to the power grid and transmit electricity to the power grid. Photovoltaic power stations are the green power development energy projects that the country encourages the most. Electrical cabinets are made of steel to protect the normal operation of components. The materials used to make electrical cabinets are generally divided into hot-rolled steel plates and cold-rolled steel plates. Cold-rolled steel plates are softer than hot-rolled steel plates and are more suitable for the production of electrical cabinets. Electrical cabinets are widely used and are mainly used in the chemical industry, environmental protection industry, power system, metallurgical system, industry, nuclear power industry, fire safety monitoring, transportation industry, etc.

[0003] After searching, the patent with announcement number CN217134906U discloses an electrical cabinet for a photovoltaic power station, including an electrical cabinet main body, which includes: a containing cabinet, a mounting member is arranged at the rear end of the containing cabinet, and the mounting member is detachably connected to the external fixed surface; an air inlet member, the air inlet member is arranged at the bottom end of the containing cabinet; and an air outlet member, a plurality of air outlet members are evenly arranged, and the air outlet members are symmetrically arranged at the two ends of the containing cabinet. By setting a magnetically detachable filter member, the elastic sheet cooperates with the filter hole to effectively block and filter the dust and mosquitoes in the external air without affecting the normal heat dissipation of the cabinet, so as to prevent the external dust and mosquitoes from entering the equipment and causing influence. When the filter hole is blocked after long-term use, the user can use the handle to disassemble and clean the filter member to ensure that the equipment can be used normally for a long time, thereby further enhancing the practicality of the device.

[0004] However, the above technical solution has the following problems: the cabinet only uses natural conditions to dissipate heat inside the cabinet by setting heat dissipation holes, and the external air directly enters and exits. The air circulation inside the cabinet is carried out under natural conditions. The actual heat dissipation effect is poor. When the outside temperature is high, it cannot meet the heat dissipation requirements inside the cabinet. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that the cabinet body only dissipates heat inside the cabinet body under natural conditions by setting heat dissipation holes, the external air directly enters and exits, the air circulation inside the cabinet body is carried out under natural conditions, the actual heat dissipation effect is poor, and when the external temperature is high, the heat dissipation inside the cabinet body cannot be satisfied. A photovoltaic electrical cabinet for outdoor use is proposed to solve the problem.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An outdoor photovoltaic electrical cabinet comprises a bottom plate and a cabinet body, wherein the outer edges and corners of the cabinet body are all arranged in an arc shape, the four corners of the bottom of the cabinet body are all fixedly connected with support columns for keeping the cabinet body away from a plane, the bottoms of the four support columns are all fixedly connected with the top of the same bottom plate, the bottom plate is made of concrete and is fixedly arranged on a plane, a cabinet door and a handle for easy opening are arranged on the front side of the cabinet body, a No. 1 hole for air circulation inside the cabinet body is opened on the inner wall of the bottom of the cabinet body, and a ceiling for shielding rain and snow is fixedly arranged on the top of the cabinet body through a connecting column;

[0008] A heat dissipation mechanism, which is arranged on the cabinet and is used to dissipate heat inside the cabinet;

[0009] A shielding mechanism is arranged on the cabinet body and is used for shielding the heat dissipation mechanism.

[0010] In a possible design, the heat dissipation mechanism includes two heat dissipation holes, two heat dissipation fans, two No. 3 filters and a No. 2 filter. The two heat dissipation holes are respectively arranged on both sides of the same cabinet, and the outer sides of the two heat dissipation fans are fixedly connected to the inner walls of the two heat dissipation holes by bolts, and the outer sides of the two No. 3 filters are fixedly connected to the inner walls of the two heat dissipation holes by bolts, respectively. The two No. 3 filters are respectively located on the side away from the two heat dissipation fans, and the outer side of the No. 2 filter is fixedly connected to the inner wall of the No. 1 hole by bolts.

[0011] In a possible design, the shielding mechanism includes two inclined plates, four side plates, two top blocks, two connecting plates, two fixed plates, two fixed columns and two shielding plates, one side of the four side plates are respectively fixedly connected to the two sides of the same cabinet, the two side parts of the two inclined plates are fixedly connected to the side close to the four side plates, the bottoms of the two top blocks are respectively fixedly connected to the four side plates and the tops of the inclined plates, the two top blocks are each provided with a sliding hole, the outer sides of the two shielding plates are respectively slidably connected to the inner walls of the two sliding holes, and the two shielding plates are respectively located at the same On both sides of a cabinet, the front and rear sides of the two shielding plates are slidably connected to the sides close to the four side panels, the bottoms of the two connecting plates are fixedly connected to the tops of the two shielding plates, the sides of the two connecting plates that are far away from each other extend outward to one side of the top block, the bottoms of the two fixing plates are fixedly connected to the tops of the two connecting plates, the two fixing columns are threadedly connected to the two fixing plates, one ends of the two fixing columns are tightly attached to the two sides of the same cabinet, and the other ends of the two fixing columns are fixedly connected with a rotating handle for easy rotation.

[0012] In a possible design, the front and rear sides of the two shielding plates are fixedly connected with sliding bars for easy sliding, and the adjacent sides of the four side panels and the inner walls of the two sliding blocks are provided with sliding grooves adapted to the sliding bars. The four sliding bars are respectively slidably connected to the multiple sliding grooves, and the shapes of the four sliding bars and the multiple sliding grooves are all set to be T-shaped.

[0013] In a possible design, a limiting strip for preventing the shielding plates from falling off is fixedly connected to the sides of the two shielding plates that are away from each other.

[0014] In one possible design, a partition is fixedly connected to the inner wall of the cabinet to prevent rainwater from entering the cabinet through hole No. 1 and causing damage to components. A hole No. 2 is provided on the partition to facilitate air circulation, and a filter No. 1 is fixed on the inner wall of hole No. 2 by bolts.

[0015] In the present application, when in use, a waterproof and sun-proof coating is sprayed on the outside of the cabinet to ensure the long-term use of the cabinet. When the outside temperature is high, the cooling fan is started. The cooling fan accelerates the air flow of the cabinet through the partition and the No. 1 hole and the No. 2 hole on the cabinet, as well as the heat dissipation holes arranged on the cabinet, thereby dissipating the heat of the cabinet. Compared with the heat dissipation under natural regulation, the heat dissipation effect through the cooling fan is better, which is convenient for protecting the photovoltaic components of the cabinet and maintaining its normal operation. When heat dissipation, the shielding structure formed by the side panels, the top block and the inclined panel reduces the impact of rain and dust on the inside of the cabinet. When the cooling fan is not needed, the heat dissipation holes are shielded by the shielding panel, and the shielding panel is fixed by the fixing block and the fixing column on the shielding panel to ensure its stability. When the shielding panel is opened, the T-shaped slider slot is used to ensure the stability of its movement, and the blocking strip on the shielding panel can prevent the shielding panel from separating from the top block and the side panel. When the plane water level is high, the height of the component installation can be increased by the partition to ensure the safety of the components inside the cabinet.

[0016] The beneficial effects of the utility model are:

[0017] In the utility model, through the heat dissipation mechanism and the shielding mechanism, the heat dissipation effect inside the cabinet can be improved under natural conditions, thereby ensuring the normal operation of the components inside the cabinet, and the heat dissipation holes can be shielded to reduce the entry of dust and rainwater. When the outside temperature is low and the fan is not in use, the heat dissipation holes are completely shielded to reduce the infiltration of dust and rainwater into the cabinet, thereby ensuring the safety of the components inside the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 It is an exploded view of the utility model;

[0021] Figure 4 It is an exploded view of the shielding structure of the utility model.

[0022] In the figure: 1. bottom plate; 2. cabinet; 3. ceiling; 4. inclined plate; 5. cooling fan; 6. partition; 7. filter No. 1; 8. filter No. 2; 9. heat dissipation hole; 10. filter No. 3; 11. side panel; 12. shielding plate; 13. sliding bar; 14. sliding groove; 15. top block; 16. connecting plate; 17. fixing plate; 18. fixing column; 19. limit strip. DETAILED DESCRIPTION

[0023] 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. Example

[0024] Reference Figure 1-Figure 4 An electrical cabinet comprises a base plate 1 and a cabinet body 2. The outer edges and corners of the cabinet body 2 are designed to be arc-shaped to increase its impact resistance and aesthetics. Support columns are provided at the four corners of the bottom of the cabinet body 2. These support columns are fixedly connected to the base plate 1 so that the cabinet body 2 can be stably placed on a plane. The base plate 1 is made of concrete to ensure its firmness and durability. A cabinet door and a handle for easy opening are provided on the front side of the cabinet body 2 to facilitate maintenance and inspection of the electrical equipment inside the cabinet body 2.

[0025] In order to ensure that the electrical equipment inside the cabinet 2 can operate normally in a high-temperature outdoor environment, a heat dissipation mechanism is set up, which includes two heat dissipation holes 9, two heat dissipation fans 5, two No. 3 filters 10 and a No. 2 filter 8. The two heat dissipation holes 9 are respectively located on both sides of the cabinet 2. The heat dissipation fans 5 and the No. 3 filters 10 are fixed to the inner walls of the heat dissipation holes 9 by bolts. The operation of the heat dissipation fans 5 can form air convection to discharge the heat inside the cabinet 2 through the heat dissipation holes 9. The No. 3 filter 10 is located on the outside of the heat dissipation fan 5 to prevent foreign matter and dust from entering the cabinet 2. At the same time, the No. 2 filter 8 is also provided on the No. 1 hole opened on the bottom inner wall of the cabinet 2, which further enhances the air circulation and dust prevention effect inside the cabinet 2.

[0026] Taking into account that in outdoor environments, severe weather conditions such as rain and snow may affect the heat dissipation mechanism, a shielding mechanism is set up. The shielding mechanism mainly includes two inclined plates 4, four side plates 11, two top blocks 15, two connecting plates 16, two fixing plates 17, two fixing columns 18 and two shielding plates 12. The four side plates 11 are fixedly connected to the two sides of the cabinet 2. The inclined plate 4 is connected to the side plate 11 to form a shielding for the upper part of the cabinet 2. The top block 15 is arranged on the top of the inclined plate 4 and the side plate 11. The sliding holes opened thereon are for the shielding plates 12 to slide. The shielding plates 12 can slide in the sliding holes, thereby realizing the shielding or opening of the heat dissipation holes 9. The setting of the connecting plate 16 and the fixing plate 17 enables the shielding plate 12 to be fixed at the desired position by the fixing column 18. The setting of the rotating handle makes the rotation and fixing operation of the fixing column 18 more convenient.

[0027] The present application can be used in the field of electrical cabinets, and can also be used in other fields applicable to the present application. Example

[0028] refer to Figure 1-Figure 4 , based on the improvement of the first embodiment, an outdoor photovoltaic electrical cabinet comprises:

[0029] In order to improve the waterproof performance of the electrical cabinet, a partition 6 is further provided on the inner wall of the cabinet body 2, and a filter screen 7 is provided on the No. 2 hole opened on the partition 6, which can effectively prevent rainwater from entering the cabinet body 2 through the No. 1 hole and causing damage to the internal electrical equipment.

[0030] In order to improve the stability of the shielding plate 12 during the sliding process, the front and rear sides of the shielding plate 12 are provided with slide bars 13, and the slide bars 13 are slidably connected with the slide grooves 14 provided on the side plates 11 and the top block 15. In addition, a limit bar 19 is also provided on the outer side of the shielding plate 12 to prevent the shielding plate 12 from falling off the slide groove 14 during the sliding process.

[0031] However, as is well known to those skilled in the art, the working principle and wiring method of the cooling fan 5 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any selection according to their needs or convenience.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An outdoor photovoltaic electrical cabinet, characterized in that: The cabinet (2) comprises a bottom plate (1) and a cabinet body (2), wherein the outer edges and corners of the cabinet body (2) are all arranged in an arc shape, the four corners of the bottom of the cabinet body (2) are all fixedly connected to support columns for keeping the cabinet body (2) away from a plane, the bottoms of the four support columns are all fixedly connected to the top of the same bottom plate (1), the bottom plate (1) is made of concrete and is fixedly arranged on a plane, the front side of the cabinet body (2) is provided with a cabinet door and a handle for easy opening, the bottom inner wall of the cabinet body (2) is provided with a No. 1 hole for air circulation inside the cabinet body (2), and the top of the cabinet body (2) is fixedly provided with a ceiling (3) for shielding against rain and snow via a connecting column; A heat dissipation mechanism, the heat dissipation mechanism being arranged on the cabinet (2) and used for dissipating heat inside the cabinet (2); A shielding mechanism is arranged on the cabinet (2) and is used to shield the heat dissipation mechanism.

2. An outdoor photovoltaic electrical cabinet according to claim 1, characterized in that: The heat dissipation mechanism comprises two heat dissipation holes (9), two heat dissipation fans (5), two No. 3 filters (10) and a No. 2 filter (8); the two heat dissipation holes (9) are respectively arranged on both sides of the same cabinet (2); the outer sides of the two heat dissipation fans (5) are respectively fixedly connected to the inner walls of the two heat dissipation holes (9) by bolts; the outer sides of the two No. 3 filters (10) are respectively fixedly connected to the inner walls of the two heat dissipation holes (9) by bolts; the two No. 3 filters (10) are respectively located on the side away from the two heat dissipation fans (5); and the outer side of the No. 2 filter (8) is fixedly connected to the inner wall of the No. 1 hole by bolts.

3. The outdoor photovoltaic electrical cabinet according to claim 1, characterized in that: The shielding mechanism comprises two inclined plates (4), four side plates (11), two top blocks (15), two connecting plates (16), two fixing plates (17), two fixing columns (18) and two shielding plates (12); one side of the four side plates (11) is respectively fixedly connected to the two sides of the same cabinet (2); the two side parts of the two inclined plates (4) are fixedly connected to the side close to the four side plates (11); the bottoms of the two top blocks (15) are respectively fixedly connected to the four side plates (11) and the tops of the inclined plates (4); sliding holes are provided on the two top blocks (15); the outer sides of the two shielding plates (12) are respectively slidably connected to the inner walls of the two sliding holes; the two shielding plates (12) are respectively located at the same On both sides of a cabinet body (2), the front and rear sides of the two shielding plates (12) are respectively slidably connected to the sides close to the four side plates (11), the bottoms of the two connecting plates (16) are respectively fixedly connected to the tops of the two shielding plates (12), the sides of the two connecting plates (16) that are away from each other both extend outward to one side of the top block (15), the bottoms of the two fixing plates (17) are respectively fixedly connected to the tops of the two connecting plates (16), the two fixing columns (18) are respectively threadedly connected to the two fixing plates (17), one end of the two fixing columns (18) is respectively tightly attached to the two sides of the same cabinet body (2), and the other ends of the two fixing columns (18) are fixedly connected to a rotating handle for easy rotation.

4. The outdoor photovoltaic electrical cabinet according to claim 3, characterized in that: The front and rear sides of the two shielding plates (12) are fixedly connected with sliding bars (13) for easy sliding, and the adjacent sides of the four side plates (11) and the inner walls of the two sliding blocks are provided with sliding grooves (14) adapted to the sliding bars (13). The four sliding bars (13) are respectively slidably connected to the plurality of sliding grooves (14), and the shapes of the four sliding bars (13) and the plurality of sliding grooves (14) are all set to be T-shaped.

5. The outdoor photovoltaic electrical cabinet according to claim 3, characterized in that: The two shielding plates (12) are both fixedly connected to one side away from the other with a limiting strip (19) for preventing the shielding plates (12) from falling off.

6. The outdoor photovoltaic electrical cabinet according to claim 1, characterized in that: A partition (6) is fixedly connected to the inner wall of the cabinet (2) for preventing rainwater from entering the cabinet (2) through the No. 1 hole and causing damage to components, and a No. 2 hole is provided on the partition (6) for facilitating air circulation, and a No. 1 filter (7) is fixedly provided on the inner wall of the No. 2 hole by means of bolts.

Images