Patent attributes
In a housing case for an electronic circuit board on which components such as connectors are mounted, there are provided a pair of guide rails that form a guide path when the board is inserted in the case and a holder holding the connectors mounted on the board, and the guide rails are disposed in a position that does not interfere with the board when the connector is held by the holder, thereby enabling to easily receive the board to be accurately fixed at a predetermined position, while preventing an excessive twisting/shaking force from concentrating at a joint where components are joined to the board, when mating connector is inserted to or removed from the connectors.