Sony Corporation

Ken Tanimura

Toshio Onodera

Mitsuru Hosoya

A fly-back transformer in which its low and high voltage windings are molded integral by resin material is disclosed. In this case, a winding receiving frame having an attaching means is integrally fixed to the peripheral edge portion on the terminal side surface of the molded body.

Method of making a fly back transformer

A coil bobbin for a fly-back transformer or the like having a bobbin proper. A plurality of partition members or flanges are formed on the bobbin proper with a slot between adjacent ones. At least first and second coil units are formed in the bobbin proper, each having several slots, formed between the flanges, and first and second high voltage coils are wound on the first and second coil units in opposite directions, respectively. A rectifying means is connected in series to the first and second coil units, and a cut-off portion or recess is provided on each of the partition members. In this case, a wire lead of the coil units passes from one slot to an adjacent slot through the cut-off portion which is formed as a delta groove, and one side of the delta groove is corresponded to the tangent direction to the winding direction.

Bobbin structure for high voltage transformers

A high voltage transformer for use in a television receiver or the like having a magnetic core, a primary winding, a secondary winding and a voltage rectifier. The secondary winding is wound on a coil bobbin and a holder is attached to the coil bobbin for holding a high voltage lead at its one end portion. The high voltage lead supplies a high DC voltage from the secondary winding to a cathode ray tube of the television receiver. The holder has an elongated cylindrical portion by which the high voltage lead is resiliently supported.

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Tokyo, Japan

Ken Tanimura