Method for forming magnetic element, magnetic element and transformer

A method for forming a magnetic element, comprising:

• providing a first sub-mould and a second sub-mould, the first sub-mould comprising a first locating slot, a first locating surface, a second locating slot and a second locating surface;
• providing a first conductive sheet and a second conductive sheet both comprising a conductive body and a conductive pin;
• fixing the conductive body of the first conductive sheet to the first locating surface, fixing the conductive pin of the first conductive sheet to the first locating slot, fixing the conductive body of the second conductive sheet to the second locating surface, and fixing the conductive pin of the second conductive sheet to the second locating slot;
• obtaining a first mould after the first sub-mould and the second sub-mould are combined, and injecting a first glue into the first mould, the first conductive sheet, the second conductive sheet and the first glue forming a conductive layer;
• providing a third sub-mould, a fourth sub-mould and a fifth sub-mould, the third sub-mould comprising a plurality of third locating slots;
• preparing a plurality of conductive layers fixed to the plurality of third locating slots, each of the conductive layers having a first through hole, the fifth sub-mould penetrating into the first through hole of the plurality of conductive layers;
• and
• obtaining a second mould after the third sub-mould, the fourth sub-mould and the fifth sub-mould are combined, and injecting a second glue into the second mould, the plurality of conductive layers and the second glue forming the magnetic element.