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STICK TYPE IGNITION COIL 용 자켓의 억지끼워맞춤시 접촉응력
김남수(Namsu Kim),송호준(Hojun Song),김양술(Yangsul Kim) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
Stick Type Ignition Coil(Called a Cigar Coil) is a kind of transformer for an automobile modularized of distributor<br/> and electric cable. A material of Cigar Coil is PBT GF30% resin. This is an excellent engineering plastic with both<br/> mechanical and electrical properties. When we insert an HV terminal into the PBT GF30% resin jacket, it breaks the<br/> jacket, because the HV terminal is bigger than the jacket. It’s a fatal on durability of a part. In the study, we used<br/> ANSYS FEM tool in order to stress analysis by contact. In order to automatically estimate passable maximum<br/> diameter of an HV terminal, we used an APDL. In the contact part, we considered the relation of the HV terminal’s<br/> diameter with the amount of stress that occurred. This relation is able to be applied, in part, to the dimensions of the<br/> part design.
이상훈(Sanghoon Lee),한승창(Seungchang Han),김양술(Yangsul Kim) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
In this study, the heat transfer coefficient and the flow characteristics according to the shape of pipe interior in automobile radiator is studied by a numerical method using STAR-CD, a commercial code based on finite volume method. A number of blocks is installed in the pipe interior and 1:1 mixture of ethylene glycol and water is used as cooling water. Then, the flow characteristics is investigated. Other researchers have interested in the experiments to increase the heat transfer effect by installing fins outside of radiator flat tube. However, this study shows that the area of accumulation or recirculation phenomenon due to increase or decrease of flow area is decreased by a number of blocks that increase the strength of flow. Also, it is known that the heat transfer effect has a very good relationship with automobile engine room and engine oil cooling.
Stick Type Ignition Coil Jacket PET의 접촉응력 해석
송호준(Hojun Song),김남수(Namsu Kim),김양술(Yangsul Kim) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
Stick type ignition coil is new development that connect directly with ECU< without needing a spark plug cable and distributor, Stick type ignition coil jacket is using PBT GF30 resin. PBT GF30 resin is a kind of electric insulation which is a superior engineering plastic that is used to prevent the leakage of the electrical current. If PET receive a mistake of design or excessive force when HV terminal oppress on jacket, it can happen to crack. When it is cracked, it can allow a leakage of the electrical current. So, in this study, We analyze the contact stress using ANSYS program, when HV terminal oppress on jacket. We compared the use of PBT and PET.