Stick Type Ignition Coil Jacket PBT의 접촉응력해석

Abstract

Stick type ignition coil(called a Cigar coil) is a kind of transformer for an automobile modulaized of distributer and electric cable. A material of Cigar coil is PBT GF30% resin. This is an excellent engineering plastic with both mechanical and electrical properties. When we insert an HV terminal into the PBT GF30% resin jacket, it breaks the jacket, because the HV terminal is bigger than the jacket. It is a fatal on durability of a part. In this study, We used ANSYS FEM tool in order to stress analysis by contact. In order to automatically estimate possible maximum diameter of an HV terminal, we used an APDL. In the contact part, we considered the relation of the HV terminal's diameter with the amount of stress that occurred. This relation is able to be applied, in part, to the dimensions of the part design.