| 摘要 |
PURPOSE:To facilitate the connection of the secondary coil of a transformer with a variable resistor and case sealing work by pressing a seal made of conductive rubber into a through hole on the side of the transformer and mounting the variable resistor on the outside of a case so as to cover the seal. CONSTITUTION:A flyback transformer 20 with a variable resistor is composed of a flyback transformer 21, a variable resistor 22, and a transformer case 30. Each of primary and secondary coils 23 and 24 is wound on the transformer 21 surrounded by the case 30. A resistor case 31 is provided on the side of the case 30 on which the resistor 22 is mounted, in which a case 32 made of an insulator is arranged. A film resistive layer is formed on the base 32. The case 31 is connected by a resistor case connecting frame 43 provided on the side of the case 30. On the side of the case 30 surrounded by the connecting frame 43 is formed a through hole 44, into which a seal as an input terminal 46 made of conductive rubber is provided. The seal is connected with an output terminal 45 to facilitate sealing work. |
