Amorphous alloy plane stepped iron core and manufacturing method thereof

Abstract

The invention discloses an amorphous alloy plane stepped iron core, which comprises a template, small iron cores, a big iron core and an internal template mould. The template is divided into an external template and an internal template. The big iron core is located on the inner side of the external template, two small iron cores are arranged in parallel in the big iron core, the internal template is disposed in the middle of each small iron core, the internal template mould is installed in the internal template, and the external template enables the entire core to be bound and formed through binding steel belts. On the design conditions of equal iron core magnetic density, turns per coil and specifications for using wires, materials of circular coils winding round the amorphous alloy plane stepped iron core only account for 91% of square coils winding amorphous alloy single-belt-material iron cores, and materials are effectively saved. In addition, the amorphous alloy plane stepped iron core adopts a closed structure, lap joint ports are not provided, generated magnetizing current is small, generated noise is small, and the amorphous alloy plane stepped iron core is beneficial for creating good work and life environment.

Description

technical field [0001] The invention relates to the technical field of manufacturing an amorphous alloy iron core, in particular to an amorphous alloy planar stepped iron core and a manufacturing method thereof. Background technique [0002] Amorphous alloy distribution transformer is a kind of energy-saving power distribution equipment using new materials, new structures and new processes. Its core material is an amorphous alloy, which has outstanding low no-load loss characteristics compared with traditional silicon steel cores. . The existing amorphous alloy transformer core is formed by stacking several groups of amorphous alloy strips and then extruded. In order to ensure that the amorphous alloy strips in the amorphous alloy transformer core will not loosen and detach Usually, 0.3 mm silicon steel sheets are used to wrap the inside and outside of the iron core, and the end face of the laminated seam of the amorphous alloy strip on the iron core is cured, sealed and in...

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Problems solved by technology

The above structure is an amorphous alloy single-strip core structure. The so-called single-strip core can only use one of the three strips of 142mm, 170mm or 213mm to make the core. It can also be two layers, which is equal to 2*142mm Or 2*170mm or 2*213mm, so that the coil is a square structure, and the square coil has more materials. On the other hand, the distribution of the sudden short circuit force on the square coil is not evenly distributed on the circular coil, that is, the short circuit resistance is relatively low. In addition, there are joints on the bottom of the single strip core, which generates large excitation current and noise, which pollutes the surrounding environment.

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