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Contactor box of pure electric rail locomotive

A technology for rail locomotives and contactors, applied in electric vehicles, motor vehicles, electrical devices, etc., can solve problems such as safety isolation, locomotive safety operation risks, and electrical failure, so as to prevent electrical failures and prevent electrical failures caused by short circuits Possibility and effect of improving reliability

Active Publication Date: 2020-02-11
CRRC ZIYANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional contactor box technical solution is only suitable for single-branch battery systems. It combines the positive and negative circuits of the battery system in a single contactor box. Since complete electrical safety isolation cannot be performed, the locomotive will , it is easy to cause electrical failure, which brings risks to the safe operation of the locomotive
[0003] In view of the above problems, it is urgent to propose a new contactor box technical solution to solve the problem that complete electrical safety isolation cannot be carried out, which leads to electrical faults easily caused when the locomotive is facing extreme conditions, and brings risks to the safe operation of the locomotive. question

Method used

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  • Contactor box of pure electric rail locomotive
  • Contactor box of pure electric rail locomotive
  • Contactor box of pure electric rail locomotive

Examples

Experimental program
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Embodiment 1

[0030] Such as figure 1 As shown, in this embodiment, a contactor 11 box for a pure electric rail vehicle is specifically provided, including a box body, the box body has a rectangular structure, and two mutually independent and arranged side by side are arranged in the box body. The two circuit spaces are separated by an insulating barrier plate 12 and each circuit space is provided with a branch battery system circuit, and each of the branch battery system circuits is located in the positive circuit or the negative circuit, that is Each branch circuit system loop in the same box is either in the positive loop or in the negative loop; in practical applications, the positive loop and negative loop of the pure electric rail vehicle are equipped with The contactor 11 box is provided, thereby eliminating the possibility of electrical failure caused by short circuit of the positive and negative poles of the battery system.

[0031] Such as figure 2 , image 3 As shown, the bra...

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Abstract

The invention discloses a contactor box of a pure electric railway locomotive. The contactor box comprises a box body, wherein at least two circuit spaces independent to each other are arranged in thebox body; the circuit spaces are separated by an insulating isolation board; branch battery system circuits are arranged in the circuit spaces; and each of the branch battery system circuits is positioned in a positive electrode circuit or a negative electrode circuit. The contactor box of the pure electric railway locomotive achieves the purposes of realizing electrical safety isolation withoutmutual influence through the separate and independent installation of the positive electrode and negative electrode contactor boxes, functionally realizing the independent breaking control of the positive and negative electrode circuits of a battery system, and providing sufficient safety protection for the battery system in the event of faults.

Description

technical field [0001] The invention belongs to the technical field of new energy, and in particular relates to a contactor box of a pure electric rail vehicle. Background technique [0002] At present, the contactor box on the power battery system of pure electric rail locomotives is mainly composed of contactors, fuses, maintenance switches, current sensors, battery management systems and other components, and is used to monitor, manage, and control the power distribution status of the power battery system. Control and protection are generally integrated with the power battery box. The traditional contactor box technical solution is only suitable for single-branch battery systems. It combines the positive and negative circuits of the battery system in a single contactor box. Since complete electrical safety isolation cannot be performed, the locomotive will , It is easy to cause electrical failure and bring risks to the safe operation of the locomotive. [0003] In view ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00B60L58/10
CPCB60L3/0046B60L2200/26B60L58/10Y02T10/70
Inventor 熊明彬李茹华隆孝军刘耕李连凯
Owner CRRC ZIYANG CO LTD
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