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Portable foil type winding transformer

A technology of foil windings and transformers, applied in the field of transformers, can solve problems such as unfitness and heavy weight of transformers, and achieve the effect of reducing quality

Inactive Publication Date: 2010-08-25
蔡建林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, foil winding transformers are generally made of copper and other metals. Although the effect is very good, transformers made of general metals have the disadvantage of heavy weight, and are not suitable for use in aircrafts and other occasions that require weight.

Method used

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Embodiment Construction

[0009] The present invention is further explained below: the foil of the transformer adopts aluminum alloy as the main material, and the thickness of the aluminum alloy foil is 0.4mm-1.2mm, and the aluminum alloy foil first undergoes intensive oxidation treatment to form a dense oxidation protective film , and then coat a layer of polyimide paint on its oxidation protective film with a thickness of 8-15um. The end of the foil adopts the method of welding copper foil, and the foil or copper core wire is used as the lead-out end of the winding.

[0010] Applying the present invention to lightweight transformers, the foils of the transformers are made of aluminum sheets, which are then oxidized while adding a layer of organic protective layer for insulation and heat insulation, and copper wires are still used as the lead-out ends. It not only reduces the quality of the transformer without affecting the performance of the transformer, but also saves the use of copper alloy to a cer...

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Abstract

The invention provides a portable foil type winding transformer. The foil of the transformer takes aluminum alloy as a main material, the thickness of the aluminum alloy foil is 0.4mm-1.2mm, the aluminum alloy foil is first strengthened and oxidized to form a dense oxide protection film, then a layer of polyimide coating of which the thickness is 8-15 mu m, is coated on the oxide protection film, and a copper foil or copper core lead is used as a leading-out terminal of the winding by a method of welding the copper foil at the tail end of the foil. The invention has the obvious effects that the foil of the transformer is made of an aluminum sheet, an organic protective layer for insulation and heat insulation is added when the aluminum sheet is oxidized, while the tail end still adopts the copper lead as the leading-out end, thereby lightening the weight of the transformer, and unaffecting the performance of the transformer.

Description

technical field [0001] The invention relates to a transformer, in particular to a lightweight foil winding transformer. Background technique [0002] The functions of the transformer mainly include: voltage transformation; current transformation, impedance transformation; isolation; voltage stabilization (magnetic saturation transformer); autotransformer; high-voltage transformer (dry type and oil-immersed type), etc. Transformer Commonly used iron core shapes are E type and C type iron core, XED type, ED type. Transformers can be divided into distribution transformers, power transformers, fully sealed transformers, combined transformers, dry-type transformers, single-phase transformers, electric furnace transformers, rectifier transformers, reactors, anti-interference transformers, lightning protection transformers, and box-type transformers. Electrical test transformer corner transformer. [0003] The most basic form of a transformer, consisting of two coils wound with w...

Claims

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Application Information

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IPC IPC(8): H01F27/28H01F27/29H01B1/02
Inventor 蔡建林
Owner 蔡建林