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Fracture-resistance copper and aluminum transition plate

A technology of anti-fracture and transition plate, which is applied in the direction of connecting contact materials, electrical components, clamping/spring connections, etc., to ensure rigidity and avoid fatigue fracture

Inactive Publication Date: 2014-03-19
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on the three reasons for the fracture of the copper-aluminum transition plate, at present, the main measures are to control the welding, reasonably select the installation angle of the clamp, and increase the welding thickness, but the above measures still cannot avoid electric corrosion

Method used

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  • Fracture-resistance copper and aluminum transition plate
  • Fracture-resistance copper and aluminum transition plate

Examples

Experimental program
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specific Embodiment approach

[0016] The specific embodiment: the best embodiment of the present invention is described in detail below in conjunction with accompanying drawing:

Embodiment

[0017] Embodiment: a kind of fracture-resistant copper-aluminum transition plate (see figure 1 , figure 2 ), which includes a copper end plate 1, the copper end plate 1 is fixedly connected to the aluminum end plate 2, and an anti-corrosion tube 3 is arranged outside the connection between the copper end plate 1 and the aluminum end plate 2, and the anti-corrosion tube 3 adopts heat Shrink tube or cold shrink tube, copper end plate 1 is provided with four fixed connection holes 4, the four fixed connection holes 4 are arranged in a rectangular shape, aluminum end plate 2 is provided with four fixed connection holes 4, the four A fixed connection hole 4 is arranged in a rectangle, and the copper end plate 1 and the aluminum end plate 2 are connected with a strip aluminum plate 5 by a bolt 6 through the fixed connection hole 4 . An insulating layer 7 is provided between the strip-shaped aluminum plate 5 and the copper end plate 1 to avoid electric corrosion; the thickness of t...

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Abstract

The invention discloses a fracture-resistance copper and aluminum transition plate which includes a copper end plate (1). The copper end plate (1) is fixedly connected with an aluminum end plate (2). The transition plate is characterized in that the connection position of copper end plate (1) and the aluminum end plate (2) is provided with an anticorrosion pipe (3) which employs a heat shrink pipe or a chilling shrink pipe. Fixing connection holes (4) are arranged in both of the copper end plate (1) and the aluminum end plate (2). A bar-shaped aluminum plate (5) is connected with the copper end plate (1) and the aluminum plate (2) by bolts (6) through the fixing connection holes (4). An insulating layer (7) is arranged between the bar-shaped aluminum plate (5) and the copper end plate (1). The thickness of the insulating layer (7) is identical with the thickness of the anticorrosion pipe (3). The fracture-resistance copper and aluminum transition plate is simple and effective in structure, capable of preventing electrochemical corrosion and preventing fatigue fracture at the joint position of the copper and aluminum transition plate and long in service life.

Description

[0001] Technical field: [0002] The invention relates to an anti-fracture copper-aluminum transition plate, which belongs to the fields of design, operation and maintenance of electric power system power plants and substations. Background technique: [0003] At present, when the copper core cable (or equipment) is connected to the overhead aluminum conductor, the connection method of the copper-aluminum transition plate is generally used. It has been recorded in the published literature that the fracture of the copper-aluminum transition plate is mainly caused by the following three reasons: welding defects, fatigue fracture and electrochemical corrosion. [0004] The following are published documents: [0005] 1. Dong Jin, Zhong Xiangyuan, An Jiangying. Reasons for Clamp Breakage of Copper-Aluminum Transition Equipment in Substations [J], "China Electric Power", No. 12, 2010 [0006] [Abstract]: The reason and fracture mode of the clamp of the copper-aluminum transition ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R11/01H01R11/09H01R4/62H01R4/38
Inventor 王星涵张波王茂成孙怡邓华
Owner STATE GRID CORP OF CHINA
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