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Electrical junction box capable of preventing condensate water

An electrical junction box, condensate technology, applied in electrical components and other directions, can solve problems such as unreasonable anti-condensation structure, and achieve the effects of novel design ideas, solving electrical faults, and improving reliability

Inactive Publication Date: 2020-02-21
CRRC YONGJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention solves the problem of unreasonable anti-condensation water structure of the existing electric junction box, and provides an electric junction box for preventing condensation water

Method used

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  • Electrical junction box capable of preventing condensate water
  • Electrical junction box capable of preventing condensate water

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Embodiment Construction

[0012] The electrical junction box to prevent condensation water is composed of a box body open on one side and a cover plate 1 that is sealed and fixed on the opening of the box body; the surrounding and bottom of the box body are hollow structures except for the perforated parts for cables to pass through (That is, the perforated part for the cable to pass through is a solid structure without a hollow structure); the cover plate 1 is a hollow structure; the hollow of the box body and the cover plate 1 is filled with heat insulating material 2 or vacuumized. In order to facilitate filling, during processing (welding or casting), the hollow of the cover plate 1 forms a single-sided opening, and the hollow of the box body forms a single-sided opening. After filling the heat insulating material 2 or vacuuming, the opening is welded and sealed or covered with sealant seal. The heat insulating material 2 uses a material with a thermal conductivity lower than that of metal.

[001...

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Abstract

The invention relates to an electrical junction box, in particular to an electrical junction box capable of preventing condensate water. The problem that an existing electrical junction box is unreasonable in condensate water prevention structure is solved. The electrical junction box capable of preventing condensate water is composed of a box body with an opening in one side and a cover plate covering the opening of the box body in a sealed mode and fixed to the opening of the box body. The periphery and the bottom of the box body are of a hollow structure except for a perforated part for a cable to penetrate. The cover plate is of a hollow structure; and the hollow parts of the box body and the cover plate are filled with thermal insulation materials or vacuumized. Heat conduction insideand outside the electrical junction box is cut off through a hollow structure and filling of a thermal insulation material or vacuumizing, and the purpose of preventing condensate water from formingis achieved. According to the invention, the hollow or sandwich structure is ingeniously applied to the electrical junction box, and the design idea is novel, unique and reasonable. The electrical junction box is suitable for bullet trains or locomotives, and is also suitable for being used in other fields in environments with violent changes of high temperature, low temperature and humidity.

Description

technical field [0001] The invention relates to an electrical junction box, in particular to an electrical junction box on an EMU, in particular to an electrical junction box for preventing condensed water. Background technique [0002] The operating environment of the EMU is changeable and complex. Due to the temperature difference between the internal and external environments, condensation water occurs in the electrical junction box on the EMU, resulting in reduced electrical insulation or grounding. The temperature is about minus 20°C, and the temperature of the overhaul operation environment in the warehouse is 25°C. This alternation of cold and heat will generate condensed water in the electrical junction box, resulting in a decrease in electrical insulation. [0003] In order to prevent the insulation reduction or electrical failure in the electrical junction box after the condensed water is generated, most of the current electrical distances are increased in the elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G3/08
CPCH02G3/088
Inventor 陈强薛秀慧耿涛尚前博
Owner CRRC YONGJI ELECTRIC CO LTD
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