Special contact box for 20kv switch cabinet

Abstract

The utility model discloses a special contact box for a 20kv switch cabinet, which relates to the technical field of contact boxes and comprises a bottom plate and a cylinder, a through hole is arranged in the middle of the upper surface of the bottom plate, the cylinder is arranged on the upper surface of the bottom plate close to the periphery of the through hole, and the cylinder is welded and fixed with the bottom plate. The outer side wall of the cylinder is sleeved with a plurality of heat dissipation rings, the heat dissipation rings are fixedly connected with the cylinder, a threaded hole is formed in the middle of the upper surface of the cylinder, a rectangular plate is arranged above the right side of the cylinder, the rectangular plate is fixedly connected with the cylinder, and round holes are formed in the four corners of the upper surface of the bottom plate; according to the contact box designed in the utility model, the plurality of heat dissipation rings are installed outside the cylinder, the heat dissipation rings are annular, heat in the cylinder can be conveniently conducted to the body and transferred, the heat can be conveniently dissipated to the outside, the circular holes are formed in the bottom plate, and the threaded rings are installed in the bottom plate, so that the contact box can be conveniently installed, and the operation is simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of contact box technology, and in particular to a special contact box for 20kV switchgear. Background Technology

[0002] A 20kV switch cabinet is an electrical device in which external power lines first enter the main control switch inside the cabinet, and then enter the branch control switches. Each branch circuit is configured according to its needs, such as instruments, automatic control systems, motor magnetic switches, and various AC contactors. Contact boxes are used in 20kV switch cabinets.

[0003] The contact box is an epoxy resin APG pressure gel molding structure used in various handcart-type switch cabinets, and its use is limited to altitudes not exceeding 1000 meters.

[0004] Traditional 20kV switchgear contact boxes have shortcomings. They have poor heat dissipation during use, which is not conducive to heat dissipation. In addition, they are not easy to install and operate. Utility Model Content

[0005] Purpose of the invention: The purpose of this utility model is to provide a special contact box for 20kV switchgear, which solves the problems mentioned in the background art.

[0006] Technical Solution: A contact box for a 20kV switchgear includes a base plate and a cylinder. A through hole is formed in the center of the upper surface of the base plate. A cylinder is arranged on the upper surface of the base plate near the periphery of the through hole and is welded and fixed to the base plate. Multiple heat dissipation rings are fitted on the outer wall of the cylinder and are fixedly connected to the cylinder. A threaded hole is formed in the center of the upper surface of the cylinder. A rectangular plate is arranged on the upper right side of the cylinder and is fixedly connected to the cylinder. Circular holes are formed at the four corners of the upper surface of the base plate. A threaded ring is provided inside the base plate and is fixedly connected to the base plate.

[0007] Furthermore, the rectangular plate is connected to the cylinder.

[0008] Furthermore, the bottom plate has a hollow interior and an open lower surface.

[0009] Furthermore, the threaded ring is connected to the cylinder.

[0010] Furthermore, the diameter of the circular hole is 0.2-0.4 cm.

[0011] Beneficial effects:

[0012] The contact box designed in this utility model has multiple heat dissipation rings installed on the outside of the cylinder. These rings are annular, which facilitates the conduction of heat from the cylinder to the body, thus transferring heat and dissipating it to the outside. In addition, a circular hole is opened in the bottom plate, and a threaded ring is installed inside the bottom plate, which facilitates the installation of the contact box and makes the operation simple and convenient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0015] Figure 3 This is a top view of the structure of this utility model.

[0016] In the diagram: 1. Cylinder; 2. Rectangular plate; 3. Heat sink ring; 4. Base plate; 5. Threaded ring; 6. Threaded hole; 7. Round hole; 8. Through hole. Detailed Implementation

[0017] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Example 1

[0019] According to the appendix Figure 1-3 A special contact box for 20kV switchgear is provided, including a base plate 4 and a cylinder 1. A through hole 8 is opened in the middle of the upper surface of the base plate 4. A cylinder 1 is arranged on the upper surface of the base plate 4 near the periphery of the through hole 8 and is welded and fixed to the base plate 4. Multiple heat dissipation rings 3 are sleeved on the outer wall of the cylinder 1 and are fixedly connected to the cylinder 1. A threaded hole 6 is opened in the middle of the upper surface of the cylinder 1. A rectangular plate 2 is arranged on the upper right side of the cylinder 1 and is fixedly connected to the cylinder 1. Circular holes 7 are opened at the four corners of the upper surface of the base plate 4. A threaded ring 5 is provided inside the base plate 4 and is fixedly connected to the base plate 4.

[0020] In this embodiment, the rectangular plate 2 is connected to the cylinder 1, and the interior of the rectangular plate 2 is a hollow structure.

[0021] In this embodiment, the bottom plate 4 has a hollow interior and an open lower surface, and the bottom plate 4 is rectangular when viewed from above.

[0022] In this embodiment, the threaded ring 5 is connected to the cylinder 1.

[0023] In this embodiment, the diameter of the circular hole 7 is 0.2-0.4 cm, and a bolt can pass through the circular hole 7 to facilitate the installation of the contact box.

[0024] The working principle of this device is:

[0025] Multiple heat dissipation rings 3 are installed on the outside of the cylinder 1. These rings 3 are annular, which facilitates the conduction of heat from the cylinder 1 to its body. The heat transfer facilitates the dissipation of heat to the outside. In addition, a circular hole 7 is opened on the base plate 4, and a threaded ring 5 is installed inside the base plate 4, which facilitates the installation of the contact box and makes the operation simple and convenient.

[0026] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A contact box for a 20kV switchgear, comprising a base plate (4) and a cylinder (1), characterized in that: A through hole (8) is opened in the middle of the upper surface of the base plate (4). A cylinder (1) is provided on the outer periphery of the upper surface of the base plate (4) near the through hole (8). The cylinder (1) is welded and fixed to the base plate (4). Multiple heat dissipation rings (3) are sleeved on the outer wall of the cylinder (1). The heat dissipation rings (3) are fixedly connected to the cylinder (1). A threaded hole (6) is opened in the middle of the upper surface of the cylinder (1). A rectangular plate (2) is provided on the upper right side of the cylinder (1). The rectangular plate (2) is fixedly connected to the cylinder (1). Circular holes (7) are opened at the four corners of the upper surface of the base plate (4). A threaded ring (5) is provided inside the base plate (4). The threaded ring (5) is fixedly connected to the base plate (4).

2. The contact box for a 20kV switchgear according to claim 1, characterized in that: The rectangular plate (2) is connected to the cylinder (1).

3. A contact box for a 20kV switchgear according to claim 1, characterized in that: The bottom plate (4) has a hollow structure inside and an open lower surface.

4. A contact box for a 20kV switchgear according to claim 1, characterized in that: The threaded ring (5) is connected to the cylinder (1).

5. A contact box for a 20kV switchgear according to claim 1, characterized in that: The diameter of the circular hole (7) is 0.2-0.4 cm.

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