Patent ID: 7142079

Claim:
A transformer structure comprising: a primary winding coil; a secondary winding coil; a bobbin module including: a first winding window portion and a second winding window portion, in which the first winding window portion allows the primary winding coil to be wound thereupon and the second winding window portion allows the secondary winding coil to be wound thereupon, and wherein both of first winding window portion and the second winding window portion include a first lateral plate, and the first winding window portion and the second winding window portion are separated or coupled by the first lateral plates thereof so as to separate the primary winding coil from the secondary winding coil; and a bobbin case for sheathing the first winding window portion and the second winding window portion, wherein the bobbin case includes at least two chambers being respectively corresponding to the first winding window portion and the second winding window portion for covering the first winding window portion and the second winding window portion, and the chambers are separated by a partition plate that is fittingly positioned in a gap formed between the first lateral plate of the first winding window portion and the first lateral plate of the second winding window portion; and a magnetic core assembly mounted within the bobbin module.