Abstract: A low voltage bobbin includes a core portion, a base portion, a plurality of insertion pins formed on an outer wall of the base portion, and a wire winding rod axially extending from each of the insertion pin. The thickness of portion of the outer wall of the base portion that is corresponding to each of the plurality of insertion pins is thinned down, each of the wire winding rod has a descending diameter from a root end to a free distal end of the wire winding rod.

Abstract: A minimized casing structure of a flyback transformer includes a base, a chamber, a guiding tube, and a rod. The chamber is formed on a side of the top surface of the base, while a recess is formed on the other side. A first extension platform is formed at front side of the base, and between the first extension platform and the front side of the base a plurality of enhancement ribs are provided. The first extension platform is connected with a second extension platform, wherein the rod is formed on the second extension platform extending from a bottom face of the second extension platform, and at least one enhancement rib is formed between the rod and the bottom face of the second extension platform.

Abstract: A low voltage bobbin includes a core portion, a base portion, a plurality of insertion pins formed on an outer wall of the base portion, and a wire winding rod axially extending from each of the insertion pin. The thickness of portion of the outer wall of the base portion that is corresponding to each of the plurality of insertion pins is thinned down, each of the wire winding rod has a descending diameter from a root end to a free distal end of the wire winding rod.

Abstract: A low voltage bobbin of a flyback transformer having a bobbin core, a base portion and an isolating member. The isolating member encompassing the bobbin core in a co-axial manner, a plurality of windings of secondary wires being wrapped around the bobbin core and a plurality of windings of primary wires being wrapped around the isolating member, the isolating member having at least a positioning portion correspondingly connected to the positioning portion of the bobbin core of the bobbin core.

Abstract: A flyback transformer includes a casing, a transformer assembly, and a focusing pack casing is provided. The transformer assembly has at least two conductive pins to be electrically connected together and the focusing pack casing has two corresponding conductive glue members in a desired connection manner for fittingly connecting the conductive pins. Short-circuiting problems due to a “floating” junction copper wire are eliminated since the junction copper wire is replaced with an internal circuit positioned on an inner surface of the focusing pack casing. Further, the present invention provides a flyback transformer more reliable than the prior art approach.