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Fabrication method for shielding shell of transformer

A technology of shielding shell and transformer, applied in the direction of transformer/inductor shell, inductor/transformer/magnet manufacturing, magnetic field/electric field shielding, etc. Achieve the effect of low cost, increased magnetism, and simple equipment

Inactive Publication Date: 2016-06-01
WUZHI ELECTRIC POWER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the shielding materials commonly used in power systems are single materials, such as silicon steel sheets, stainless steel, iron and other shielding materials. Increased power consumption, greater harm to the surrounding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The present invention will be further described below in conjunction with specific examples.

[0013] A method for preparing a shielding shell of a transformer, comprising the following steps:

[0014] Step 1. Use ferrite to make the main body of the transformer outer shielding shell;

[0015] Step 2, electroplating a layer of La-Cu composite electromagnetic shielding material on the inner and outer surfaces of the main body of the shielding shell respectively;

[0016] Step 3, using a passivating agent to passivate the inner and outer surfaces of the main body of the shielding shell;

[0017] Step 4, heat-melt and coat a layer of insulating resin with conductive ions on the outside of the main body of the shielding case.

[0018] Further, the insulating resin is a hydrophobic insulating resin.

[0019] Further, the insulating resin is epoxy resin.

[0020] In actual use, the thickness of the surface plating and the thickness of the insulating resin can be adjusted ...

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PUM

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Abstract

The invention discloses a fabrication method for a shielding shell of a transformer. The fabrication method comprises the following steps of 1, fabricating an outer shielding shell main body of the transformer by using ferrite; 2, respectively electroplating a layer of La-Cu series of composite electromagnetic shielding material on the inner surface and the outer surface of the shielding shell main body; 3, carrying out passivation treatment on the inner surface and outer surface of the shielding shell by using a passivation agent; and 4, coating a layer of insulation resin with conductive ions outside the shielding shell main body by hot melting. Through comprehensive surface treatment on the ferrite shielding shell, the magnetism of the ferrite is improved, and the fabrication method has the advantages of low cost, simplicity in process, device and fabrication and the like.

Description

technical field [0001] The invention relates to a method for preparing a shielding case, in particular to a method for preparing a shielding case for a transformer. Background technique [0002] As society enters the information age, more and more electrical equipment enters people's production and life, and the electromagnetic radiation caused by it is becoming more and more serious. Electromagnetic radiation pollution has become a pollution source that cannot be ignored. At present, electromagnetic Radiation protection measures mainly include: shielding, filtering, absorption, etc., among which shielding is one of the most effective methods against electromagnetic interference. At present, the shielding materials commonly used in power systems are single materials, such as silicon steel sheets, stainless steel, iron and other shielding materials. Increased power consumption will cause greater harm to the surroundings. Contents of the invention [0003] The purpose of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/02H01F41/00H05K9/00
Inventor 李晓飞冯乳慧
Owner WUZHI ELECTRIC POWER CORP