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A transmission connection structure for high current DC contactor

A DC contactor, transmission connection technology, applied in relays, electromagnetic relays, electromagnetic relay details and other directions, can solve the problems of increased difficulty in after-sales service, increased contactor opening distance, increased contactor volume, etc., to improve transmission efficiency. , the effect of simplifying the number and structure

Active Publication Date: 2019-07-05
BEIJING CED RAILWAY ELECTRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most DC contactors in the domestic market use snap-in electromagnets. Since the output force value of snap-in electromagnets will drop sharply as the stroke increases, with the development needs of the rail transit industry, DC contactors with higher breaking capacity will be required. The increase of the breaking capacity will lead to the increase of the opening distance of the contactor, which requires the electromagnet to provide a larger stroke. In the limited space of the locomotive, it is impossible to increase the volume of the contactor infinitely, which requires the entire power and transmission of the contactor. system optimization
[0004] Existing high-current DC contactors for locomotives have many parts in the transmission structure, and often need to adjust multiple parts to meet the requirements of the locomotive. This virtually increases the difficulty of the assembly process and is not conducive to the guarantee of product quality. , which also increases the difficulty of after-sales service

Method used

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  • A transmission connection structure for high current DC contactor
  • A transmission connection structure for high current DC contactor
  • A transmission connection structure for high current DC contactor

Examples

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Embodiment 1

[0026] Such as Figures 1 to 4 As shown, a transmission connection structure for high-current DC contactor, which transmits the action of the electromagnet to the control switch, converts it into a control signal and feeds it back to the remote locomotive control system, which specifically includes a spring system, a support seat 8, a dynamic The contact 9, the static contact 10, the conductive copper bar 11, the action mechanism of the micro switch and the shell 19; the shell 19 is made of SMC composite material, and the SMC composite material is a kind of glass fiber reinforced plastic. The main raw materials are composed of GF (special yarn), MD (filler) and various auxiliary agents. It first appeared in Europe in the early 1960s, and around 1965, the United States and Japan successively developed this craft. In the late 1980s, our country introduced foreign advanced SMC production lines and production techniques. It has good sealing and waterproof performance, anti-corro...

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Abstract

The invention discloses a transmission connection structure for a high current DC contactor. The action of an electromagnet is transmitted to a control switch and is converted into a control signal tobe sent to a locomotive control system to a remote end. The transmission connection structure comprises a spring system, a support seat (8), a moving contact (9), a static contact (10), a conductivecopper bar (11), a micro-switch action mechanism and a housing (19). The transmission connection structure has the advantages of a simple structure and easy installation, the unified management of product quality is facilitated, and combined with a suction electromagnet with more stable output, the problem of the sharp increase of an external dimension of the contactor after the capacity is increased can be solved. The contactor used in the limited space of a locomotive provides a sufficient open distance, the number of transmission parts is reduced, the transmission efficiency is improved, and the reliability of transmission is ensured.

Description

technical field [0001] The invention relates to mechanical and electronic automatic control technology, in particular to a transmission connection structure for a large-current DC contactor. Background technique [0002] The contactor used by electric locomotive is mainly installed in the traction conversion system of the locomotive or EMU, and belongs to the isolation device of the main circuit of the locomotive. Its main function is to isolate the main circuit of the traction motor of the locomotive; the quality of the contactor is directly related to the running state of the locomotive. Once a failure occurs, it will directly lead to a machine breakdown accident. It is an important part in the locomotive circuit. [0003] At present, most DC contactors in the domestic market use snap-in electromagnets. Since the output force value of snap-in electromagnets will drop sharply as the stroke increases, with the development needs of the rail transit industry, DC contactors wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H50/64
CPCH01H50/645
Inventor 秦宏升
Owner BEIJING CED RAILWAY ELECTRIC TECH
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