Patent ID: 7012191
Filing Date: 2006-03-14
Classification: G11B,H02K,H05K

Abstract:
1. A lead wire sealing device comprising: a housing member that is a part of a housing which forms a closed space therein, the housing member having an upper surface facing the closed space of the housing and an lower surface facing an open space which is formed outside of the housing; an electric component that is mounted on the upper surface of the housing member; a lead wire connecting from the electric component to an electrode formed on the lower surface of the housing member for making an electrical connection with an outer device located in the open space of the housing; a housing through hole that is formed in the housing member and penetrates from the closed space to the open space, the lead wire being inserted in the housing through hole; a bush having a substantially tubular shape, the bush that is inserted into the housing through hole and covers an inner circumferential surface of the housing through hole, the lead wire being inserted in an inside of the bush; a first adhesive that is filled into a continuous space including not only a first space which is formed between an outer circumferential surface of the bush and the inner circumferential surface of the housing through hole but a second space which seals the housing through hole, as a manner that the first adhesive has no isolated air bubble therein; and a second adhesive having a higher viscosity than that of the first adhesive when they are not hardened, the second adhesive covering an upper space of the first space filled with the first adhesive to isolate the first adhesive from an inner air of the housing.