Patent ID: 7518882

Claim:
A circuit module comprising; a plurality of bus bars arranged approximately in a same plane to form a power circuit; a control circuit board in which a control circuit for controlling electrical continuity of the power circuit is built, being bonded to said bus bars, and provided with a conductor segment to be electrically connected to at least a specific one of said bus bars on one surface of said control circuit board on the opposite side of the other surface bonded to said bus bars, and a through-hole penetrating a main body of the control circuit board at a position adjacent to said conductor segment so as to expose a portion of said specific bus bar; and an electrically-connecting member of a shape bridging between said through-hole and said conductor segment, said electrically-connecting member being soldered onto both said conductor segment and the exposed portion of said specific bus bar, wherein said electrically-connecting member is formed of a metal plate and disposed in a posture approximately parallel to said control circuit board, and wherein said electrically-connecting member has a surface soldered onto said conductor segment and a surface soldered onto the exposed portion of said specific bus bar, and is formed with a step portion providing a height difference approximately equal to a board thickness of said control circuit board, between the surfaces, the height difference allowing a solder fillet connecting the electrically-connecting member to the bus bar to be formed on a surface of the exposed portion of said specific bus bar.