| 主权项 |
1. A transformer, comprising:
a bobbin part including a lower bobbin and an upper bobbin vertically laminated above the lower bobbin and combined with the lower bobbin, each bobbin including a tube-shaped body part having a penetration hole therein, and flange parts protruded outwardly from both sides of the body part, and a terminal coupling part protruded from one side of the flange part of each of the bobbins, and the terminal coupling part of the lower bobbin is protruded from an upper flange part, while the terminal coupling part of the upper bobbin is protruded from a lower flange part, each terminal coupling part having external connection terminals protruding therefrom; and a coil part including coils respectively wound around the upper bobbins and lower bobbin, wherein at least one bobbin includes withdrawing grooves formed in a space between the external connection terminals, the coils wound around the at least one bobbin being withdrawn outwardly of the at least one bobbin via the withdrawing grooves and coupled to the external connection terminals, the lower and upper bobbins are combined with each other such that the terminal coupling part of the lower bobbin and the terminal coupling part of the upper bobbin are arranged in opposite directions, the terminal coupling part of the upper bobbin includes a separating block protruded downwardly between the coils wound around the lower bobbin and the external connection terminals of the upper bobbin to secure an insulation distance therebetween, and the terminal coupling part of the lower bobbin includes a separating block protruded upwardly between the coils wound around the upper bobbin and the external connection terminals of the lower bobbin to secure an insulation distance therebetween. |
