Transformer iron core capable of improving assembly efficiency

Abstract

The invention relates to a transformer iron core capable of improving the assembly efficiency. The transformer iron core comprises one or more sequentially overlaid laminated layers, wherein each of the overlaid laminated layers comprises upper yoke laminates, lower yoke laminates, middle pillar laminates and side pillar laminates on two sides which are the same in number of laminates; the upper yoke laminates comprise one or more than one upper yoke piece, a triangular notch is formed in the middle section of the upper yoke piece, and the triangular notch on each upper yoke piece is longitudinally misplaced and stepped along the central line of the triangle; the left side end edge of each upper yoke piece is transversely misplaced and is longitudinally overlapped with the side pillar laminate and the middle pillar piece to step; the upper and lower ends of each of the middle pillar pieces of the middle pillar laminate respectively form triangular parts and are longitudinally misplaced and stepped; the upper and lower end edges of the side pillar piece of the side pillar laminate on each side obliquely extend and are longitudinally misplaced and longitudinally overlapped with the upper and lower yoke pieces to step; process holes convenient for assembling and positioning are formed on the upper and lower yoke pieces, the middle pillar pieces and side pillar pieces. The transformer iron core provided by the invention is simple to operate and convenient to assemble, the assembly efficiency is improved and the labor cost is lowered.

Description

technical field [0001] The invention relates to the technology in the field of transformers, in particular to a transformer core that can improve assembly efficiency. Background technique [0002] Transformer is a device that transforms AC voltage, current and impedance. Transformers are generally made of electromagnetic coils on iron cores. As an important part of transformers, iron cores are generally made of silicon steel sheets. Factors such as core lapping method and core stacking process will also affect the no-load loss, no-load current and noise. [0003] In order to further improve the no-load characteristics of the transformer core, people have carried out long-term exploration and research on the joint form of the transformer core. Compared with ordinary seams, the no-load loss and noise of this kind of seam are obviously reduced, and the product performance is also improved. Therefore, the step-by-step lap-joint core has become an inevitable trend in the develo...

AI Technical Summary

Problems solved by technology

However, in the prior art, the horizontal stepping pitch is usually formed by stacking pieces one by one, which is cumbersome to operate, low in assembly efficiency, and consumes a lot of manpower, which is not conducive to the development of stepping and overlapping cores.

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