| 摘要 |
PURPOSE:To assure long-term reliability by constituting a connector to be fitted into the end face of a housing for connection of a material having the coefft. of thermal expansion smaller than the coefft. of thermal expansion of the end face material of the housing for connection. CONSTITUTION:The connector 22 fixed by brazing 15 to the front end of a power feed pipe 11 in a small-diameter cable 10 is fitted and inserted into a recessed hole 17 of the housing end face plate 16 of the housing 14 for connection and is pressed and fixed by means of a press plate 18 and bolts 19. The material of the connector 22 is so selected and combined that its coefft. of thermal expansion is smaller than the coefft. of thermal expansion of the material of the end face plate 16. The temp. atmosphere of the environment where the repeater is assembled is set at ordinary temp. (15 to 30 deg.C). The fitting state is subjected to the water temp. in the sea bottom, for example, a low temp. of 2 to 3 deg.C when the submarine repeater is laid on the sea bottom after the assembly. Then, the shrinkage by the temp. change of the housing end face plate 16 acts on the connector 22 and the shrinkage force eventually acts thereon from the entire surface like arrows 24, 25. |
