Terminal strip for electric locomotive hauling transformer

A technology for traction transformers and electric locomotives, applied in the direction of transformers/inductor coils/windings/connections, etc., can solve problems such as inconvenient installation and maintenance, low service life, poor insulation degree, etc., and achieve reduced quality control points and long service life , Improve the effect of assembly quality

Inactive Publication Date: 2010-03-10
DALIAN NORTH INSTR TRANSFORMER GROUP
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AI Technical Summary

Problems solved by technology

[0003] In view of the existing problems in the split terminal block of electric locomotive traction transformer, such as easy oil leakage, poor insulation degree, inconvenient installation and maintenance, and low service life, the technical problem to be solved by the present invention is to provide a reliable insulation, mechanical strength Terminal block for electric locomotive traction transformer with high height, convenient operation, flexible installation, good sealing performance and long service life

Method used

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  • Terminal strip for electric locomotive hauling transformer
  • Terminal strip for electric locomotive hauling transformer
  • Terminal strip for electric locomotive hauling transformer

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Embodiment Construction

[0014] like Figure 1~3 As shown, a terminal block for an electric locomotive traction transformer according to the present invention is composed of a connecting terminal 1 , an air side insulating post 2 , a mounting flange 3 and an oil mid-side insulating post 5 . The terminal block 1 is made of high-quality copper, the two ends are plate-shaped, and the middle is a cylindrical structure, which ensures reliable and effective solidification during epoxy resin pouring and facilitates user wiring. It runs through the integral structure; air side insulation column 2, installation method Both the blue 3 and the insulating column 5 on the middle oil side are integrally formed by vacuum casting of epoxy resin, so that they have excellent dielectric strength and mechanical strength; There are a plurality of silicone rubber buffer rings 7 with superior elasticity (4 to 6, and 4 are used in this embodiment), which not only ensure the role of buffering and crack prevention when the epo...

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Abstract

The invention relates to a terminal strip for an electric locomotive hauling transformer, which consists of a connecting terminal, an air side insulated post, a mounting flange, a seal groove and an oil middle side insulated post; the air side insulated post, the mounting flange and the oil middle side insulated post have an integral structure formed by vacuum pouring of epoxy resin; the contacting surface of the connecting terminal and the epoxy resin is circularly provided with buffer circles; the air side insulated post and the oil middle side insulated post have a cone frustum shape, and joints of the roots of the two and the flange are provided with fillets; two ends of the connecting terminal are platy and the middle of the connecting terminal has a cylindrical structure; and the buffer circles are 4 to 6, made of elastic silicon rubber, and are circularly arranged on the contacting surface of the middle cylinder of the connecting terminal and the epoxy resin. The terminal striphas reliable insulation, strong mechanical strength, convenient operation, flexible installation, reliable seal, and long service life.

Description

technical field [0001] The patent of the present invention relates to insulation and sealing equipment for traction transformers of electric locomotives, in particular to an outlet terminal block of traction transformers for electric locomotives. Background technique [0002] The traction transformer of electric locomotive usually adopts the form of oil insulation, and the traction transformer terminal block is the main insulation and sealing element in the traction transformer, and it is also the connecting element connecting the inside and outside of the traction transformer. The quality of the traction transformer terminal block will directly affect the quality of the traction transformer. Quality, if the traction transformer leaks oil and air due to terminal block and the insulation is damaged and the insulation drops, it will cause the entire electric locomotive to fail to operate normally, endangering equipment and personal safety. At present, the terminal block form o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/29H01F27/32
Inventor 李涛昌王仁焘金忠超管永秋郝荣福赵阳武刘丽娟李建龙
Owner DALIAN NORTH INSTR TRANSFORMER GROUP
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