High-voltage transformer

摘要

In a first secondary-side bobbin 50A, a roll surface of a winding section SA 2 is located outward in radial direction with respect to a roll surface of a winding section SA 1 in the vicinity of a groove 55A, while a roll surface of a winding section SA 3 is located outward in radial direction with respect to the roll surface of the winding section SA 2 in the vicinity of a groove 56A. Furthermore, the two winding sections SA 2 , SA 3 cross each other so that the respective roll surfaces have substantially oval-coin-shaped cross sections and the respective major axis lines on the cross sections of the respective roll surfaces cross each other when viewed from the Y-axis direction.