| 摘要 |
PURPOSE:To enable the automatic fabrication and the protection of a internally- mounted capacitor from an external pressure etc. by eliminating restriction of inserting direction of the capacitor by forming a capacitor insersion and attachment hole arranged on a coil bobbin as a through-hole. CONSTITUTION:A capacitor insertion and attachment hole 5 arranged on a side plane of a terminal plate 4 of a coil bobbin 1 is formed as a through-hole penetrating the terminal plate 4. On an internal plane of a cylinder 9, circular projections 11 fitting in the attachment hole 5 when the cylinder 9 is inserted in the coil bobbin 1 are arranged. The terminal plate 4 is provided with fitting projections 6 fitting in fitting windows 12 of the cylinder 9 and grooves 7 for interconnection of capacitor lead wires. A capacitor 13 is put in the attachment hole 5 and its lead wires are connected to pin terminals 8 through the interconnection grooves 7. As a capacitor insertion and attachment hole formed on the coil bobbin is thus a through-hole, the capacitor can be inserted in this hole from either direction. Also, as the cylinder 9 is provided with the circular projections 11 fitting in the both ends of the capacitor insertion and attachment hole 5, the deformation of the coil bobbin 1 caused by an external pressure etc. can be prevented and the capacitor incorporated in the capacitor insertion and attachment hole 5 can be protected from breakage.
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