Patent ID: 8587168
Filing Date: 2013-11-19
Classification: F04B,F04C,H01L,H05K

Abstract:
1. An electric device comprising: a circuit board arranged in cooling medium in a housing and having an electric element and an external coupling electrode, the circuit board including an insulation substrate made of at least a thermoplastic resin, the electric element being mounted in the board, a wiring portion electrically coupling the electric element with the external coupling electrode, and the electric element and the wiring portion being sealed with the thermoplastic resin; an external coupling terminal electrically coupled with the external coupling electrode; and a separation member for separating the external coupling terminal and a connection portion between the external coupling electrode and the external coupling terminal and away from the cooling medium, wherein the circuit board is attached to an inner wall of the housing under a condition that a part of the external coupling terminal is exposed to an outside of the housing from a through hole, which penetrates a wall of the housing, wherein the separation member is made of thermoplastic resin, wherein the thermoplastic resin of the separation member is arranged on a surface of the circuit board, which faces the inner wall, surrounds the external coupling terminal and the connection portion, and surrounds a position of the surface of the circuit board facing the through hole, and wherein the thermoplastic resin of the separation member is tightly attached to the inner wall of the housing so that the resin is attached to the inner wall of the housing, and the external coupling terminal and the connection portion are separated from the cooling medium.