Silicon steel magnetic shielding

A magnetic shielding, silicon steel technology, applied in the fields of magnetic field/electric field shielding, preventing/reducing unwanted electrical/magnetic effects, electrical components, etc., can solve the problems of easy deformation, high cost, poor rigidity, etc.

Inactive Publication Date: 2014-05-07
ZHENGZHOU HANTONG ELECTRONICS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a silicon steel magnetic shield, which can effec

Method used

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  • Silicon steel magnetic shielding

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Embodiment Construction

[0006] A silicon steel magnetic shield 1, comprising two supporting trays 2, 3 and a frame structure 4 connecting the two supporting trays, a number of oriented silicon steel sheets 5 close to each other are arranged between the two supporting trays, so The side of the oriented silicon steel sheet is argon arc welded on the frame structure. Each grain-oriented silicon steel sheet has the same shape and the same size. The thickness of the grain-oriented silicon steel sheet is 10 mm.

[0007] The present invention is convenient to obtain materials, and does not need large-scale steel materials as raw materials, as long as the remaining oriented silicon steel sheets are obtained after the processing of the transformer iron core is completed. Cut the grain-oriented silicon steel sheets of different sizes and lengths into narrow materials with a uniform width, generally taking 10mm as the standard. At the same time, try to ensure that each grain-oriented silicon steel sheet has th...

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Abstract

The invention provides a silicon steel magnetic shielding which can effectively solve the problems that in the prior art, the silicon steel magnetic shielding is poor in rigidity, easy to transform, high in cost, serious in waste and the like. The silicon steel magnetic shielding comprises two supporting trays and a frame type structure which connects the two supporting trays; a plurality of mutually adhered oriented silicon steel sheets are arranged between every two supporting trays; lateral sides of the oriented silicon steel sheets are welded to the frame structure through argon arc welding. The silicon steel magnetic shielding has the advantages of being flat and compact, not easy to deform and good in shielding effect and effectively reducing costs due to the fact that leftover materials of the oriented silicon steel sheets are served as production raw materials.

Description

technical field [0001] The invention relates to a silicon steel magnetic shield. Background technique [0002] As key equipment in the power transmission and distribution industry, large power transformers are widely used in power transmission lines. During the operation of the transformer, there is inevitably magnetic flux leakage in the iron core of the transformer, and a large amount of electric energy is converted into heat energy and dissipated, resulting in energy loss. [0003] In order to reduce energy loss, magnetic shielding is generally installed on the outer cover of the transformer. Magnetic shielding can generally be divided into two types: aluminum plate magnetic shielding and sheet-oriented silicon steel magnetic shielding. The magnetic shield made of aluminum plate material is generally only used on transformers with a voltage level of 110KV and below due to its relatively high magnetic resistance. Sheet-type oriented silicon steel magnetic shielding is ge...

Claims

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Application Information

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IPC IPC(8): H01F27/36H05K9/00
Inventor 宋亚磊
Owner ZHENGZHOU HANTONG ELECTRONICS TECH
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