Patent ID: 7642889

Claim:
An inverter transformer comprising: a core structure comprising an outer core section and an inner core section; a plurality of bobbins each comprising a spool portion having a hollow, and first and second terminal blocks disposed respectively at both ends of the spool portion, wherein the inner core section of the core structure is inserted in the hollow of the spool portion, the first terminal block has a recess formed at an end face thereof and lodging a terminal pin, the second terminal block has two recesses formed at an end face thereof and lodging two terminal pins, respectively, distal tip ends of the terminal pins lodged in the recesses of the first and second terminal blocks are positioned either flush with or inward of the end faces of the first and second terminal blocks, part of the core structure is located above the recess, and an end face of the core structure oriented substantially orthogonal to an extending direction of the terminal pins is positioned either flush with or outward of the distal tip ends of the terminal pins; and primary and secondary windings wound around the spool portion, wherein one wire end of the secondary winding is tied around the terminal pin lodged in the recess of the first terminal block, and another wire end of the secondary winding is tied around one of the two terminal pins lodged respectively in the two recesses of the second terminal block.