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Sealing structure and method for top cover of top-mounted high-voltage equipment box of motor train unit

A high-voltage equipment box and top cover sealing technology, which is applied in the field of rail transit, can solve problems such as the top cover of the high-voltage equipment box is not tightly sealed, and achieve the effects of enhancing rigidity, ensuring sealing performance, and avoiding warping and deformation

Inactive Publication Date: 2020-02-04
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a sealing structure for the top cover of the overhead high-voltage equipment box of the EMU to improve the sealing performance of the overhead high-voltage equipment box Sealing performance

Method used

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  • Sealing structure and method for top cover of top-mounted high-voltage equipment box of motor train unit
  • Sealing structure and method for top cover of top-mounted high-voltage equipment box of motor train unit
  • Sealing structure and method for top cover of top-mounted high-voltage equipment box of motor train unit

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Embodiment Construction

[0028] Below by specific embodiment and in conjunction with accompanying drawing, the present invention will be further described:

[0029] This example figure 1 and figure 2 Shown: a top-cover sealing structure of an overhead high-voltage equipment box for an EMU, including: a box body 2 and a top cover 1, the top cover 1 is sealed and connected to the box body 2 by fasteners, and the top cover 1 An outer ring sealing structure and an inner ring sealing structure are respectively provided between the box body 2 and on both sides of the fastener, and the fastener is used to apply pre-pressure to the outer ring sealing structure and the inner ring sealing structure to form a double-layer sealing structure. The fasteners are arranged on the edges of the top cover 1 and the box body 2, and are arranged at intervals along the edges. The outer ring sealing structure is arranged on the outer side of the fastener near the edge of the top cover 1 and the box body 2, and the inner r...

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Abstract

The invention relates to a sealing structure and method for a top cover of a top-mounted high-voltage equipment box of a motor train unit. The sealing structure comprises a box body and the top cover,wherein the top cover is connected to the box body in a sealed mode through a fastener; an outer ring sealing structure and an inner ring sealing structure are arranged between the top cover and thebox body and positioned on the two sides of the fastener respectively; and pre-pressure is applied to the outer ring sealing structure and the inner ring sealing structure through the fastener to forma double-layer sealing structure. By the adoption of the sealing structure with the outer ring sealing structure and the inner ring sealing structure arranged on the two sides of the fastener respectively, so that the sealing structure bears proper pre-pressure, and therefore a good sealing effect is achieved.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a sealing structure and method for a top cover of an overhead high-voltage equipment box of an EMU. Background technique [0002] At present, in order to save space at the bottom of the rail vehicle body, it has become a trend to arrange high-voltage equipment on the roof of the rail vehicle. The problem brought about by this is that the high-voltage box is exposed outdoors, and the sealing requirements for the high-voltage box are very high. The general high-voltage equipment box adopts the structure of a box body and a top cover. The top cover is fastened to the box body by bolts and sealed by a sealing strip. At present, the edge of the top cover of the existing structure is bonded with a metal profile with a sealant. This structure is complex, the production cycle is long, and the requirements for bonding are high. If the bonding is not good, it is easy to leak and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B1/46H02B1/28F16J15/06F16J15/14F16B43/00
CPCF16B43/001F16J15/06F16J15/14H02B1/28H02B1/46
Inventor 王兴伟王昭周旭日林立钿王明星
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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