| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electromagnetic device with enhanced workability for fitting and electrical connection that requires no winding work of a primary coil. <P>SOLUTION: A transformer is comprised of a secondary coil L2 for high voltage that a square wire is wound around the side face of a rod-like ferrite core 11 in one layer in edgewise manner and a primary coil L1 that is formed side by side on the low-voltage side of the secondary coil L2 on the side face of the ferrite core 11. The primary coil L1 is made by forming a coil pattern by printing it on an insulating coil substrate 14. Since the primary coil L1 is thus formed on the insulating coil substrate 14 by printing, the workability of fitting the primary coil L1 can be improved and the excessive work of winding thereof can be eliminated because the primary coil L1 and the edgewise wound secondary coil L2 are combined electromagnetically. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
