Transformer capable of reducing noise and preparation method

The invention discloses a transformer capable of reducing noise and a preparation method, the transformer comprises at least one annular iron core and a plurality of coils arranged around the iron cores, the part, not surrounded by the coils, of the upper part of the iron core is an upper iron yoke, and the part, surrounded by the coils, of the iron core is a core column; an insulating filling material is also included; and the insulating filling material is filled in a gap between the core column and the coils. The transformer has the advantages that the gap is filled by the insulating filling part without influencing the original body structure of the transformer; when the iron core vibrates, sound transmission can be greatly weakened. 本发明公开了一种可降噪变压器及制备方法，包括至少一个环形的铁心和围绕若干铁心设置的若干线圈，铁心上部未被线圈围绕的部分为上铁轭，被线圈围绕的铁心的部分为心柱；还包括绝缘填充材料；所述绝缘填充材料填充在所述心柱与线圈之间的间隙中。优点：通过绝缘填充部填充间隙，不影响变压器原器身结构；在铁心震动时，可大量减弱声音的传播。