Tube busbar joint

Abstract

The invention discloses a tube busbar joint which is formed by adopting an anchor ear and a metallic sheath at the ends of copper and aluminium tube busbars and a copper composite tube busbar, or using an arc-shaped metallic pressing board to tightly fix soft copper and aluminium tapes on the end of the busbar by a screw bolt directly. The soft copper and aluminium tapes of the tube busbar joint is connected with terminals of other equipment, and the tube busbar joint tightly fixes the soft copper and aluminium tapes on the end of the busbar directly to form an integrated type, thus having no link bit, no contact resistance, reducing heat productivity, having large current carrying capacity, guaranteeing that the end of the busbar does not generate high temperature, and ensuring safe operation; and the busbar joint is the integrated type, thus cancelling original conversion hardware fittings, lowering cost directly, reducing the weight of the busbar and consumptive materials, and saving nonferrous metal and energy.

Description

[0001] The application in this case is a divisional application. The application date of the original application is April 24, 2007, the application number is 200710101495.7, and the name of the invention is pipe bus joint. technical field [0002] The tube busbar joint of the invention is especially suitable for connecting the end of the conductive tube busbar for transporting power frequency and large current to equipment terminals. Large current carrying capacity, low temperature rise, high mechanical strength, and improved operating safety factor. Background technique [0003] The existing conductive pipe busbar joint (patent number: 01215457.1) has the following disadvantages in the actual installation process: since the end of the conductive pipe busbar is round, it is necessary to install conversion fittings during the connection with the equipment terminal, from the round surface to the Plane, connected to other equipment terminals through rectangular conductors. 1....

AI Technical Summary

Problems solved by technology

[0003] The existing conductive pipe busbar joint (patent number: 01215457.1) has the following disadvantages in the actual installation process: since the end of the conductive pipe busbar is round, it is necessary to install conversion fittings during the connection with the equipment terminal, from the round surface to the Plane, connected to other equipment terminals through rectangular conductors

1. The connection between the pipe busbar and the equipment terminal needs to be equipped with conversion fittings, which is costly, wastes materials and consumes energy

2. The original joint has only two conductive planes, the cross-sectional area is small, and the conductors are split. When the current is transmitted, there will be uneven current distribution. One of the conductive plane conductors has a small overcurrent, and the other conductive plane conductor has overcurrent If it is too large, the side with high overcurrent will generate high temperature

3. The connection between the end of the pipe busbar and the conversion fitting will generate contact resistance. Due to the existence of contact resistance, in the case of high current transmission, the end of the pipe busbar and the conversion fitting will generate excessive heat. The greater the heat, the higher the resistance , the more serious the heat is, the higher the temperature will cause the pipe busbar to be blown, short circuit between phases, short circuit to ground or cause a fire and cause a greater accident

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