| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power supply unit capable of improving the insulation performance of an insulation transformer, while suppressing the increase in the thickness of the device. <P>SOLUTION: The power supply unit 1 in which an insulation transformer 20 is provided on a circuit board 10 is constituted such that the insulation transformer 20 with a winding shaft portion 21b, having a center shaft substantially parallel to the circuit board 10 and a primary winding wire 24 and a secondary winding wire 25 wound therearound; a flange-like insulation wall 28 formed on the outer circumferential surface of the winding shaft portion 21b and electrically separating the primary winding wire 24 and the secondary winding wire 25; and the circuit board 10 has an insertion hole 11 for inserting the insulation wall 28. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
