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A shielding box for a high-potential control board of a high-power thyristor device

A thyristor and high potential technology, applied in the field of shielding boxes, can solve the problems of low safety, poor electromagnetic shielding effect and anti-pollution ability, cumbersome installation and maintenance, etc., and achieve high heat dissipation efficiency, good consistency and improved reliability.

Active Publication Date: 2017-12-26
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing TCU board support is an open slot structure, and the TCU board is basically exposed, which has low safety, poor electromagnetic shielding effect and anti-pollution ability, and cumbersome installation and maintenance

Method used

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  • A shielding box for a high-potential control board of a high-power thyristor device
  • A shielding box for a high-potential control board of a high-power thyristor device
  • A shielding box for a high-potential control board of a high-power thyristor device

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Embodiment Construction

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0039] A shielding box for a high-potential control board of a high-power thyristor device provided by the present invention can be installed on a thyristor device or a thyristor radiator or other parts that require heat dissipation. The shielding box includes a base plate, a side plate and a fixing plate 4;

[0040] 1. Substrate and side panels;

[0041] (1) The base plate is a concave plate, including base plate A and base plate B; the side plate is a rectangular flat plate, including side plate A and side plate B;

[0042] Su...

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Abstract

The invention provides a shielding box for a high potential control panel of a high-power thyristor device. The shielding box comprises a substrate A, a substrate B, a side plate A and a side plate B. The substrate A and the substrate B are connected to form a cuboid frame with a semi-closed space, and the side plate A and the side plate B are respectively arranged on two sides of the cuboid frame perpendicular to the substrates and are provided with cooling fins. The high potential control panel of the thyristor device is fixed on the side plate B through four nylon struts, a square heat conduction silica gel piece adheres between the high potential control panel and an inner wall of the side plate B, a rectangular groove is formed in the substrate A and used for placing the high potential control panel, and a square heat conduction silica gel piece adheres between the high potential control panel and the rectangular groove. Compared with the prior art, the shielding box for the high potential control panel of the high-power thyristor device is of a compact plug type structure, has good shielding performance, is resistant to dust and dirt, meets the electromagnetic compatibility test requirements, is high in heat dissipation efficiency and free of partial discharge and improves reliability of the control panel.

Description

technical field [0001] The invention relates to a shielding box, in particular to a shielding box for a high-potential control board of a high-power thyristor device. Background technique [0002] With the rapid development of the economy, the industrial field has higher and higher requirements for power systems, and Flexible Alternative Current Transmission Systems (FACTS) has been widely used. The core equipment of the power electronic devices involved in FACTS technology-related equipment is mainly a high-power thyristor valve body, which is an indoor high-voltage device, and the high-potential trigger board (TCU board) is the key control component of the thyristor. The TCU board is generally installed and fixed on the thyristor valve body through a bracket, and is electrically connected to the thyristor, voltage equalizing capacitor, and resistor through terminals. Most of the existing TCU board supports are open slot structures, and the TCU board is basically exposed, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K9/00
Inventor 张雷王承民常忠袁洪亮王珊丹任西周郎平
Owner STATE GRID CORP OF CHINA
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