A power distribution cabinet

Abstract

The utility model provides a kind of switch board belongs to switch board technical field.It solves the problem of poor bearing capacity of the bottom plate of existing switch board.The switch board, including the cabinet body of cuboid, the bottom of cabinet body is equipped with the bottom plate of rectangle, the middle part of bottom plate has fan installation mouth, four side edges of bottom plate are all welded with the inner wall of cabinet body, four corner positions below bottom plate are all provided with reinforcing part, reinforcing part has two connecting ends, one connecting end is fixedly connected with one of the inner wall of cabinet body, another connecting end is fixedly connected with another inner wall of cabinet body;The middle part of reinforcing part is formed into rectangular boss with convex, recess is formed between bottom plate and rectangular boss, four corner positions of bottom surface of bottom plate are all welded with mounting block, mounting block has threaded hole, connecting hole is provided on rectangular boss.The switch board of this structure has higher structural stability, significantly improves the bearing capacity of bottom plate, prevents the risk of fracture in the welding position of bottom plate and cabinet body.

Description

Technical Field

[0001] This utility model belongs to the field of power distribution cabinet technology, and in particular, a power distribution cabinet. Background Technology

[0002] In thermal power plants with megawatt-scale units, distribution cabinets are the final stage equipment in the power distribution system. Distribution cabinets are divided into power distribution cabinets, lighting distribution cabinets, and metering cabinets. Distribution cabinets are a general term for motor control centers. Distribution cabinets are used in situations where the load is relatively dispersed and there are fewer circuits, while motor control centers are used in situations where the load is concentrated and there are more circuits. They distribute the electrical energy of a certain circuit of the upper-level power distribution equipment to the nearest load. This level of equipment should provide protection, monitoring, and control for the load.

[0003] The existing distribution cabinet has a base plate at the bottom with a mounting hole for installing a cooling fan. The cooling fan blows cooling air upwards to cool the electrical components inside the distribution cabinet. However, the cooling fan is quite heavy, and the existing base plate is usually welded directly to the distribution cabinet, resulting in poor load-bearing capacity and making it unsuitable for installing large and heavy cooling fans. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned problems in existing technologies by proposing a power distribution cabinet. The technical problem to be solved by this utility model is: how to solve the problem of poor load-bearing capacity of the base plate of existing power distribution cabinets.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A power distribution cabinet includes a rectangular cabinet body with a rectangular base plate at the bottom. The base plate has a fan mounting port in the center, and its four sides are welded to the inner walls of the cabinet body. The cabinet is characterized by having reinforcing members at each of the four corners of the base plate. Each reinforcing member has two connecting ends, one of which is fixedly connected to one inner wall of the cabinet body, and the other is fixedly connected to the other inner wall of the cabinet body. A rectangular boss protrudes from the center of the reinforcing member, and a groove is formed between the base plate and the rectangular boss. Mounting blocks are welded to each of the four corners of the lower surface of the base plate, and each mounting block has a threaded hole. A connecting hole is provided on the rectangular boss. The power distribution cabinet also includes screws that pass through the connecting holes and are threaded into the threaded holes.

[0007] This structure enhances the load-bearing capacity of the base plate by installing reinforcing members at the four corners of its lower surface. These reinforcing members are fixedly connected to the base plate with fasteners, and their two ends are welded to the inner walls of the cabinet. The reinforcing members and the two inner walls of the cabinet form a triangular structure, providing high structural stability. With the reinforcing members fixed to both the base plate and the cabinet, the load is indirectly transferred to the reinforcing members and the cabinet when the base plate bears weight, significantly improving the base plate's load-bearing capacity and preventing the risk of breakage at the welded joints. Furthermore, the rectangular bosses and grooves in the reinforcing members give them high strength, making them less prone to deformation and providing good load-bearing capacity. The thin base plate allows for direct welding of the mounting blocks to its lower surface, eliminating the need for threaded holes and ensuring a stable and secure connection between the reinforcing members and the base plate.

[0008] In the aforementioned type of distribution cabinet, the reinforcing member has support plates on both the left and right sides of the boss that abut against the lower surface of the base plate. These support plates are welded to the base plate. After being abutted against the lower surface of the base plate, the support plates directly lift and support the base plate, and also give the reinforcing member an irregular shape, improving its overall structural strength, reducing deformation, and enhancing its load-bearing capacity.

[0009] In one type of distribution cabinet described above, the connecting end is bent downwards at 90° to form a connecting plate, which is welded to the inner wall of the cabinet. The connecting plate increases the connection area between the connecting end and the cabinet, thereby increasing the connection strength between them, making the connection point more robust and less prone to breakage.

[0010] In the aforementioned type of distribution cabinet, the four sides at the lower end of the cabinet are bent inward to form flanges. Support members are provided at the four corner positions inside the lower end of the distribution cabinet. Each support member includes a support plate and two support plates mounted on the support plate. The two support plates are perpendicular to each other, and each support plate is fitted against the inner wall of the cabinet. The upper end of each support plate abuts against the edge of the base plate. The support plates are welded to the inner wall of the cabinet, and the support plate abuts against the upper surface of the two flanges. The support plate in the support member supports the support plates, and the two support plates support the corners of the base plate, further improving the structural stability of the welded positions at the four corners of the base plate, ensuring that the welded positions do not break, and thus improving the load-bearing capacity of the base plate.

[0011] In one type of distribution cabinet described above, support feet are fixed on the support plate. The support feet are used to support the entire distribution cabinet.

[0012] Compared with the prior art, the power distribution cabinet of this utility model has the following advantages: This structure enhances the load-bearing capacity of the base plate by setting reinforcements at the four corners of the lower surface of the base plate. The reinforcements are fixedly connected to the base plate by fasteners, and the two connecting ends of the reinforcements are welded to the inner wall of the cabinet. The reinforcements and the two inner walls of the cabinet form a triangular structure, which has high structural stability. The reinforcements are fixedly connected to the base plate on one side and to the cabinet on the other side. When the base plate is under load, the load is indirectly transmitted to the reinforcements and the cabinet, which significantly improves the load-bearing capacity of the base plate and prevents the risk of breakage at the welded position between the base plate and the cabinet. Secondly, the design of the rectangular boss and groove in the reinforcements makes the shape of the reinforcements have high strength and is not easy to deform, thus having good load-bearing capacity. The base plate is thin, and the mounting block is directly welded to the lower surface of the base plate without the need to open threaded holes in the base plate, ensuring good connection stability and firmness between the reinforcements and the base plate. Attached Figure Description

[0013] Figure 1 This is a bottom view of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle.

[0016] Figure 4 This is a three-dimensional structural diagram of the reinforcing component of this utility model.

[0017] Figure 5 This is a three-dimensional structural diagram of the power distribution cabinet of this utility model with one reinforcing component removed.

[0018] Figure 6 yes Figure 5 A magnified structural diagram of part A in the middle.

[0019] Figure 7 This is a three-dimensional structural diagram of the support component of this utility model.

[0020] In the diagram, 1. Cabinet body; 2. Base plate; 3. Fan mounting port; 4. Reinforcing member; 40. Connecting end; 41. Rectangular boss; 42. Groove; 43. Connecting hole; 44. Support plate; 45. Connecting plate; 5. Mounting block; 50. Threaded hole; 6. Flanged edge; 7. Support member; 70. Support plate; 71. Support plate; 8. Support foot; 9. Screw. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] like Figures 1-6 As shown, this distribution cabinet includes a rectangular cabinet 1. A rectangular base plate 2 is located at the bottom of the cabinet 1. A fan mounting port 3 is located in the center of the base plate 2. All four sides of the base plate 2 are welded to the inner walls of the cabinet 1. Reinforcing members 4 are located at the four corners below the base plate 2. Each reinforcing member 4 has two connecting ends 40. One connecting end 40 is fixedly connected to one inner wall of the cabinet 1, and the other connecting end 40 is fixedly connected to the other inner wall of the cabinet 1. A rectangular boss 41 protrudes from the center of the reinforcing member 4. A groove 42 is formed between the base plate 2 and the rectangular boss 41. Mounting blocks 5 are welded to the four corners of the lower surface of the base plate 2. Each mounting block 5 has a threaded hole 50. A connecting hole 43 is provided on the rectangular boss 41. This distribution cabinet also includes screws 9. The screws 9 pass through the connecting hole 43 and are threadedly connected to the threaded hole 50. This structure enhances the load-bearing capacity of the base plate 2 by setting reinforcements 4 at the four corners of the lower surface of the base plate 2. The reinforcements 4 are fixedly connected to the base plate 2 by fasteners. The two connecting ends 40 of the reinforcements 4 are welded to the inner walls of the cabinet 1 respectively. The reinforcements 4 and the two inner walls of the cabinet 1 form a triangular structure, which has high structural stability. The reinforcements 4 are fixedly connected to the base plate 2 on one side and to the cabinet 1 on the other side. When the base plate 2 is under load, the load is indirectly transmitted to the reinforcements 4 and the cabinet 1, which significantly improves the load-bearing capacity of the base plate 2 and prevents the risk of breakage at the welded position between the base plate 2 and the cabinet 1. Secondly, the design of the rectangular boss 41 and the groove 42 in the reinforcements 4 makes the shape of the reinforcements 4 have high strength and is not easy to deform, thus having good load-bearing capacity. The base plate 2 is relatively thin, and the mounting block 5 is directly welded to the lower surface of the base plate 2 without the need to open threaded holes in the base plate 2, ensuring good connection stability and firmness between the reinforcements 4 and the base plate 2.

[0023] like Figure 3 and Figure 4 As shown, the reinforcing member 4 has support plates 44 on both the left and right sides of the boss, which are attached to the lower surface of the base plate 2. The support plates 44 are welded to the base plate 2. After being attached to the lower surface of the base plate 2, the support plates 44 directly support and lift the base plate 2, and also make the overall shape of the reinforcing member 4 irregular, which improves the overall structural strength of the reinforcing member 4, makes it less prone to deformation, and improves its load-bearing performance.

[0024] like Figure 3 and Figure 4 As shown, the connecting end 40 is bent downwards at 90° to form a connecting plate 45, which is welded to the inner wall of the cabinet 1. The connecting plate 45 increases the connection area between the connecting end 40 and the cabinet 1, thereby increasing the connection strength between the connecting end 40 and the cabinet 1, making the connection point more secure and less prone to breakage.

[0025] like Figure 3 and Figure 7 As shown, the four sides of the lower end of the cabinet 1 are bent inward to form flanges 6. Support members 7 are provided at the four corners of the lower end of the cabinet 1. Each support member 7 includes a support plate 70 and two support plates 71 mounted on the support plate 70. The two support plates 71 are perpendicular to each other, and each support plate 71 is fitted against the inner wall of the cabinet 1. The upper end of each support plate 71 abuts against the edge of the base plate 2. The support plates 71 are welded to the inner wall of the cabinet 1, and the support plate 70 is in contact with the upper surface of the two flanges 6. Support feet 8 are fixed to the support plate 70. The support plate 70 in the support member 7 supports the support plates 71, and the two support plates 71 support the corners of the base plate 2, further improving the structural stability of the welded positions at the four corners of the base plate 2, ensuring that the welded positions do not break, and thus improving the load-bearing capacity of the base plate 2.

[0026] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A power distribution cabinet, comprising a rectangular cabinet (1), wherein a rectangular base plate (2) is provided at the bottom of the cabinet (1), the base plate (2) has a fan mounting port (3) in the middle, and the four sides of the base plate (2) are welded to the inner wall of the cabinet (1), characterized in that, Reinforcing members (4) are provided at the four corners below the base plate (2). Each reinforcing member (4) has two connecting ends (40). One connecting end (40) is fixedly connected to one of the inner walls of the cabinet (1), and the other connecting end (40) is fixedly connected to the other inner wall of the cabinet (1). A rectangular boss (41) is formed in the middle of the reinforcing member (4). A groove (42) is formed between the base plate (2) and the rectangular boss (41). Mounting blocks (5) are welded at the four corners of the lower surface of the base plate (2). Each mounting block (5) has a threaded hole (50). A connecting hole (43) is provided on the rectangular boss (41). This distribution cabinet also includes screws (9). The screws (9) pass through the connecting hole (43) and are threadedly connected to the threaded hole (50).

2. A power distribution cabinet according to claim 1, characterized in that, The reinforcing member (4) has a support plate (44) on both the left and right sides of the boss that is in contact with the lower surface of the base plate (2), and the support plate (44) is welded to the base plate (2).

3. A power distribution cabinet according to claim 1, characterized in that, The connecting end (40) is bent downward at 90° to form a connecting plate (45), and the connecting plate (45) is welded to the inner wall of the cabinet (1).

4. A power distribution cabinet according to claim 1, characterized in that, The four sides of the lower end of the cabinet (1) are bent inward to form flanges (6). Support members (7) are provided at the four corners of the lower end of the cabinet (1). The support member (7) includes a tray (70) and two support plates (71) set on the tray (70). The two support plates (71) are set perpendicularly to each other. Each support plate (71) is attached to the inner wall of the cabinet (1). The upper end of each support plate (71) abuts against the edge of the bottom plate (2). The support plate (71) is welded to the inner wall of the cabinet (1). The tray (70) is attached to the upper surface of the two flanges (6).

5. A power distribution cabinet according to claim 4, characterized in that, The support foot (8) is fixed on the tray (70).

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