To reliably prevent illegal behaviors by sticking the sealing part of a case for housing a control substrate with an adhesive.

By screwing a screw 53 temporarily held at screw holding parts 49a to 49f to screw receiving part 51a to 51f, adhesive housing parts 55a to 55f embedded to the screw receiving part 51a to 51f are crushed by the screw 53 to stick gaps around the screwed screw 53 and between the screw holding parts 49a to 49f and the screw receiving part 51a to 51f with the adhesive leaked from the adhesive housing parts 55a to 55f to strongly fix the screwed screw and to strongly stick the screw holding parts 49a to 49f to the screw receiving part 51a to 51f.