High-reliability double-wire equipment wire clamp

Abstract

The invention relates to the technical field of wire clamps, and discloses a high-reliability double-wire equipment wire clamp which comprises two wire connecting parts and an equipment connecting part, each wire connecting part is of a barrel-shaped structure formed through extrusion and stretching, and the equipment connecting part is of a T-shaped or inverted-L-shaped structure formed through profile extrusion. And the two wire connecting parts are arranged in parallel. According to the high-reliability double-wire equipment wire clamp, the wire connecting part is manufactured by adopting an extruding and stretching process, and the equipment connecting part is manufactured by adopting a section bar in an extruding manner, so that compared with a cast product, the high-reliability double-wire equipment wire clamp has the advantages of compact material, firmer wire crimping and difficulty in cracking.

Description

Technical Field

[0001] This invention relates to the field of wire clamp technology, specifically a high-reliability wire clamp for dual-conductor devices. Background Technology

[0002] High-reliability dual-conductor clamps in current power grids have a wide variety of models and specifications due to their connection with different double-split conductors, different electrical terminals, and different conductor spacings designed to prevent corona discharge. However, the demand for clamps in a single project is not large. Traditional integral casting processes require molds of many specifications. Although the improved partial casting and welding of two tubular parts can reduce the types of molds, large-sized, thick-walled castings are prone to defects such as insufficient feeding, internal porosity, and external cracking, thereby reducing the mechanical strength and electrical performance of the product. Summary of the Invention

[0003] To address the aforementioned shortcomings of existing technologies, this invention provides a highly reliable dual-wire device clamp.

[0004] The present invention provides the following technical solution: a high-reliability dual-wire device clamp, comprising two wire connection parts and one device connection part. The wire connection parts are cylindrical structures formed by extrusion stretching, and the device connection part is a T-shaped or inverted L-shaped structure formed by profile extrusion. The two wire connection parts are arranged in parallel, and the bottom of their cylindrical parts is connected to the top surface of the T-shaped or inverted L-shaped structure of the device connection part by welding to form a welding part.

[0005] Preferably, the bottom of the cylindrical sections of the two wire connection parts are connected to the top surface of the T-shaped or inverted L-shaped structure of the equipment connection part by end-to-end friction welding.

[0006] Preferably, the cross-section of the connecting part of the device is T-shaped or inverted L-shaped, manufactured by profile extrusion process, and cut into the required width and shape; its top surface or upper part can be designed with the required tilt angle.

[0007] Preferably, the spacing between the two wire connection portions is set as needed, typically 120mm, 200mm or 400mm.

[0008] Preferably, the barrel-shaped structure of the wire connection portion is manufactured by extruding and stretching or machining of bar stock to achieve the required inner diameter, outer diameter, and barrel depth.

[0009] Preferably, the bottom of the bucket where the wire connection is located is provided with a small outward and downward through hole for draining accumulated water.

[0010] Preferably, the connecting part of the device has a copper sheet welded to one side surface.

[0011] Compared with the prior art, the present invention has the following beneficial effects: This high-reliability dual-wire device clamp uses extrusion and stretching for the wire connection part and profile extrusion for the device connection part. Therefore, compared with cast products, it has the advantages of denser material, stronger wire crimping, and less susceptibility to cracking. The wire connection part and the device connection part are welded using friction welding, which has the advantages of larger welding surface, higher mechanical strength, and more energy-efficient and efficient production and processing compared with argon arc welding. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the side view structure; Figure 3 This is a schematic diagram of the wire connection portion and the device connection portion of the present invention tilted at 30 degrees; Figure 4 This is a schematic diagram of the wire connection part and the device connection part of the present invention tilted at 90 degrees; Figure 5 This is a schematic diagram of the copper foil location structure of the present invention; Figure 6 This is a schematic diagram of the spacing structure of the two wire connection parts of the present invention.

[0013] In the diagram: 1. Wire connection; 2. Equipment connection; 3. Welded part; 4. Leakage hole; 5. Copper sheet. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. In order to keep the following description of the embodiments of this disclosure clear and concise, detailed descriptions of known functions and known components are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0015] Please see Figure 1 and Figure 6 The high-reliability dual-conductor device clamp of this invention is assembled from two main components: two conductor connection parts 1 and one device connection part 2. It is suitable for connecting equipment and dual-split conductors in power systems. By optimizing the molding process and connection method, it solves the problems of material defects and insufficient strength of traditional clamps.

[0016] The conductor connection part 1 is manufactured using an extrusion stretching molding process. It uses metal rods with excellent conductivity as raw materials, which are extruded through a special extrusion die and then stretched to form a cylindrical structure. For special specifications, a rod hole machining process can also be used to process the required inner diameter, outer diameter and barrel depth to ensure compatibility with the double-split conductors to be connected.

[0017] The equipment connection part 2 is manufactured using a profile extrusion process. A T-shaped or inverted L-shaped profile blank is formed by extrusion using a custom mold. Then, according to actual installation requirements, the profile blank is cut into finished structures of corresponding width and shape. Its top surface or upper part can be designed with the required tilt angle according to the direction of the wire connection, such as... Figure 3 , Figure 4 As shown, it adapts to the wire layout requirements of different installation scenarios and can achieve angle adaptation without additional processing.

[0018] See Figure 2 and Figure 3 as well as Figure 4 Two wire connection parts 1 are arranged in parallel. The bottom of their cylindrical sections is connected to the top surface (top surface of the T-shaped structure or upper part of the inverted L-shaped structure) of the equipment connection part 2 using an end-to-end friction welding process to form the welded part 3. In practice, the bottom end face of the cylindrical section 1 and the connecting surface of the equipment connection part 2 are first ground flat to ensure the end face fit. Then, the two are driven to rub against each other at high speed using friction welding equipment. The heat generated by the friction brings the metal of the connecting surface to a plastic state, and then an upsetting force is applied to complete the welding. Compared with traditional argon arc welding, this process has a larger welding area, a dense weld without pores, and significantly improves the mechanical strength and electrical continuity of the connection part.

[0019] The parallel spacing between the two conductor connection parts 1 is flexibly set according to the anti-corona discharge design requirements and actual engineering scenarios. Common implementation specifications are 120mm, 200mm, or 400mm. Figure 1 , Figure 6 As shown. By adjusting the welding position of the wire connection part 1 on the top surface of the equipment connection part 2, different spacings can be customized without replacing the core mold.

[0020] At the bottom of the cylinder of each wire connection part 1, a small through hole, i.e., a drainage hole 4, is machined facing outward and downward to drain accumulated water. During implementation, the through hole is machined at an angle downward along the bottom edge of the cylinder to ensure that water condensed inside the clamp can be smoothly drained during outdoor use, preventing the clamp from cracking due to freezing and expansion of water in low-temperature environments, and extending the product's outdoor service life.

[0021] See Figure 5 For electrical terminals made of copper, a layer of copper foil 5 is welded to one side of the equipment connection part 2 to form a copper-aluminum transition structure, such as... Figure 5 As shown. The copper sheet 5 is made of high-purity conductive copper, and its dimensions are perfectly matched with the mating surface of the equipment connection part 2. It is fixed by brazing to ensure a firm weld and stable conductivity, effectively reducing the contact resistance between the copper equipment and the clamp, and improving the reliability of the electrical connection.

[0022] This embodiment uses forming processes such as extrusion stretching and profile extrusion to ensure that the product material is dense and defect-free. Combined with the high-strength connection characteristics of friction welding, the wire clamp has the advantages of high mechanical strength and excellent conductivity. At the same time, through flexible spacing customization and additional structural design, it can be adapted to a variety of installation scenarios. The production process is energy-saving and efficient, solving the problems of high cost and many defects of traditional wire clamp molds.

[0023] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A high-reliability dual-conductor device clamp, characterized in that: It includes two wire connection parts and one device connection part. The wire connection parts are cylindrical structures formed by extrusion stretching, and the device connection part is a T-shaped or inverted L-shaped structure formed by profile extrusion. The two wire connection parts are arranged in parallel, and the bottom of their cylindrical parts is connected to the top surface of the T-shaped or inverted L-shaped structure of the device connection part by welding to form a welded part.

2. The high-reliability dual-conductor device clamp according to claim 1, characterized in that: The bottom of the cylindrical sections of the two wire connection parts are connected to the top surface of the T-shaped or inverted L-shaped structure of the equipment connection part by end-to-end friction welding.

3. The high-reliability dual-conductor device clamp according to claim 1, characterized in that: The cross-section of the connecting part of the equipment is T-shaped or inverted L-shaped, and it is manufactured by profile extrusion process and cut into the required width and shape; Its top surface or upper part can be designed with the required tilt angle.

4. The high-reliability dual-conductor device clamp according to claim 1, characterized in that: The spacing between the two wire connection parts can be set as needed, typically 120mm, 200mm or 400mm.

5. A high-reliability dual-conductor device clamp according to claim 1, characterized in that: The barrel-shaped structure of the wire connection part is manufactured by extruding and stretching or machining bars to achieve the required inner diameter, outer diameter, and barrel depth.

6. A high-reliability dual-conductor device clamp according to claim 1, characterized in that: The bottom of the bucket where the wire is connected has a small outward and downward through hole for draining accumulated water.

7. A high-reliability dual-conductor device clamp according to claim 1, characterized in that: The connecting part of the device has a copper sheet welded onto one side surface.

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