Patent 7442064 was granted and assigned to Yazaki on October, 2008 by the United States Patent and Trademark Office.
The board connecting body includes: a pair of board cases electrically connected to each other when connectors each attached to a printed circuit board received in a housing of the board cases are fitted to each other; a receiving wall part of the housing of one board case capable of receiving the housing of another board case; a projection formed on one of the receiving wall part and the housing of the other board case; and a groove formed on the other of the receiving wall part and the housing of the other board case, the projection being capable of entering the groove, wherein the groove includes: a straight part extending along a fitting direction of the connectors; and a receiving part formed in such a manner that a width of the receiving part gradually decreases from an outer edge to the straight part.