| 摘要 |
PURPOSE:To effectively and easily assemble the entirety by engaging a ring- shaped magnetic unit and the second bobbin with the outer peripheral side of a main winding wound on the first bobbin, and winding a sub winding on the outer peripheral side, thereby facilitating the assembling of the magnetic unit. CONSTITUTION:The first bobbin 10 having the first collar 10, the smaller collar 10b smaller than the collar 10, and a coupler 10c is prepared, and a main winding 5 is wound on the coupler 10c. The second bobbin 9 having the third collar 9a and an annular unit 9c is integrated with the outside of a ring-shaped magnetic unit 7 separately from it, and engaged on the outer periphery of the winding 5 from the direction of the collar 10b. Finall, a sub winding 6 is wound on the annular unit 9c of the second bobbin 9 in reverse direction to the winding 5. Thus, the assembling of the unit 7 can be simplified, and the winding 6 can be effectively wound. |
