Amorphous metal core, induction apparatus using same, and method for manufacturing same

An amorphous metal core comprising;

• a number of amorphous metal unit cores that include an amorphous thin plate laminate formed by laminating a number of amorphous metal thin plates and a pair of assembly plates respectively laminated on the front and rear surfaces of the amorphous thin plate laminate, and are configured to have an “I” shape, respectively, and form a magnetic circuit having at least one air gap (G);
• and a coupling unit that separably couples two adjacent amorphous metal unit cores with each other with the at least one air gap formed in-between and with two adjacent assembly plates of the two adjacent amorphous metal unit cores being aligned on a plane,
• wherein the coupling unit comprises:
• at least one coupling protrusion formed on an end of the other two adjacent assembly plates and at least one coupling recess formed on an end of one of the two adjacent assembly plates, the at least one coupling protrusion being inserted into the at least one coupling recess to couple the two adjacent amorphous metal unit cores,
• wherein a length of the at least one coupling protrusion or a depth of the at least one coupling recess is configured to set a predetermined interval of the air gap.