CASE FOR FLY BACK TRANSFORMER

摘要

PURPOSE: A case for a fly back transformer is provided to reduce the quantity of resin to be filled in the FBT case by improving the combining structure between the FBT case and a main body of a high voltage bobbin. CONSTITUTION: A high voltage bobbin engaged with a low voltage bobbin(110) is inserted into an FBT case(130). An insulating resin(140) is filled in the FBT case(130). A plurality of grooves(160) are formed at a circumference portion of the FBT case(130). A plurality of coil locking stages(150) are inserted into the grooves(160), respectively. Bobbin inserting portions(180) having an arc shape extend between the grooves(160). A bobbin main body(170) having a cylindrical shape is engaged with the bobbin inserting portions(180). A bobbin engaging portion(190) is provided in the FBT case(130). The insulating resin(140) is filled in the bobbin engaging portion(190).