INJECTION MOLDING METHOD, A MANUFACTURING METHOD OF A FUEL LEVEL SENSOR USING THE SAME, AND A FUEL LEVEL SENSOR FOR PROTECTING A SUBSTRATE INSIDE A LOWER BODY WHEN OVER-MOLDING AN UPPER BODY OF A FUEL LEVEL SENSOR

摘要

PURPOSE: An injection molding method, a manufacturing method of a fuel level sensor using the same, and a fuel level sensor are provided to improve air tightness and insulating effect when charging heat-resistant resin in upper and lower parts of a substrate.;CONSTITUTION: A heat-resistant resin is charged in upper and lower parts of a substrate(S100). A lower part is over-molded by injection mold. A fuel level sensor includes a substrate, a lower body, a heat resistant resin, and an upper body. The lower body accepts the substrate. The heat-resistant resin is charged in the upper, lower, or inside of the lower part. The upper body is molded in the lower body.;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Heat-resistant resin : epoxy or silicon; (S100) Charging, cooling, and thermosetting heat-resistant resin