Improved structure of amorphous iron core

Abstract

The invention relates to an improved structure of amorphous iron core, which comprises a plurality of alloy thin sheets and at least a sound-proof blanket. All the alloy thin sheets have the same width, which are iterated mutually to form a closed cycle electric circuit, and the side edge of each alloy thin sheet is connected with the side edge of the sound-proof blanket by binding agent. The sound-proof blanket can attach to the inner surface, or the outer surface, or both the inner and the outer surfaces of the amorphous iron core, thus the sound-proof blanket can prevent the inner and the outer surfaces of the amorphous iron core from rusting, thereby effectively improving the appearance of the amorphous iron core, and reducing noises caused during running.

Description

technical field [0001] The invention relates to an improved structure of an amorphous iron core, in particular to an improved structure of an amorphous iron core suitable for an amorphous resin type dry-type transformer. Background technique [0002] Generally, the material of the amorphous iron core is made of multiple alloy sheets stacked on top of each other. Because of its low iron loss, it is widely used in transformers. The alloy sheets are generally based on amorphous metals. [0003] see figure 1 It is a schematic diagram of the structure of the existing amorphous iron core. The amorphous iron core 90 is composed of a plurality of alloy sheets 91 stacked on each other to form a closed loop electrical circuit. A silicon steel sheet is encapsulated on the inner surface and the outer surface of the iron core as For protection, an adhesive 93 is coated on both sides of the amorphous core 90 for fixing and supporting. [0004] However, the alloy flakes 91 are generally ...

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Problems solved by technology

[0004] However, the alloy flakes 91 are generally very thin, and the amorphous iron core 90 formed by stacking the alloy flakes 91 is in actual operation, that is, when the amorphous iron core 90 is excited, due to the multiple alloy flakes 91 Its magnetostriction is relatively large and it is glued by the adhesive 93 so that there is no margin for expansion and contraction, so the amorphous core 90 will generate relatively large noise due to magnetostriction, and the encapsulating silicon steel sheet itself has no sound insulation effect

[0005] Moreover, when the above-mentioned amorphous iron core 90 is set inside an amorphous resin type dry-type transformer, because the amorphous iron core 90 in the amorphous resin type dry-type transformer is exposed to the atmosphere, the encapsulating silicon steel Chips are easy to rust due to moisture, resulting in unsightly appearance, so the commonly used amorphous core structure is not very ideal, and there is still room for improvement

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