Patent ID: 9564267
Date: 2017-02-07
CPC Classifications: H01F

Claim:
1. A bobbin assembly for a magnetic element, the magnetic element comprising at least one pancake winding assembly, the bobbin assembly comprising plural bobbin units, wherein the plural bobbin units have no winding accommodation spaces and the plural bobbin units are detachably coupled with each other, wherein each of the plural bobbin units comprises: a main body comprising an external surface, a channel running through the main body, a first lateral part, a second lateral part opposed to the first lateral part, and a first winding section between the first lateral part and the second lateral part; a coupling structure disposed on the external surface of the main body, wherein the at least one pancake winding assembly is disposed around the main body of the corresponding bobbin unit, and the at least one pancake winding assembly is coupled with the corresponding coupling structure; and at least one engaging structure, wherein the engaging structure of the bobbin unit is engaged with the engaging structure of the adjacent bobbin unit.