| 摘要 |
PROBLEM TO BE SOLVED: To suppress position deviation of a first casing member and a second casing member by inserting, for fitting, a protrusion of the second casing member into a seal groove of the first casing member while restricting movement in the width direction of the seal groove.SOLUTION: In an electronic controller having a structure in which circuit boards are contained in spaces within a casing 7 composed of a plurality of casing members joined together, there are used a case 12 having a seal groove 46 in a joint region and a cover 15 having a protruded edge part 45 to be engaged in the seal groove 46 of the case 12 in a joint region. A protrusion 70 is formed on an inside wall surface 71 in the seal groove 46 or on one of opposed surfaces 76a and 76b of the protruded edge part 45 facing the inside wall surface 71. The clearance between the seal groove 46 and the protruded edge part 45 is sealed with a sealing material 74. |
