Patent ID: 7744381

Claim:
An electronic device comprising: a printed circuit board having a first surface and a second surface and including a plurality of lands; a connector disposed on the first surface of the printed circuit board and including a housing and a plurality of terminals, the plurality of terminals arranged in the housing and electrically coupled with the plurality of lands respectively for electrically coupling the printed circuit board and an external connector; a casing including a first case disposed on the first-surface side of the printed circuit board and a second case disposed on the second-surface side of the printed circuit board, the casing having a connector opening defined by an open edge portion of the first case and an open edge portion of the second case, the casing housing the printed circuit board and a part of the connector in such a manner that the other part of the connector protrudes from the connector opening to an outside of the casing; and a sealing member disposed between a peripheral edge portion of the first case and an peripheral edge portion of the second case and between the open edge portions of the casing and a surface of the housing so that an inside of the casing is waterproof, wherein: the casing has a sealing part coming in contact with the sealing member; the sealing part of the casing includes a casing-side recess portion and a casing-side protruding portion; the casing-side recess portion extends from one longitudinal end to the other longitudinal end of the open edge portion of one of the cases; the casing-side protruding portion extends from one longitudinal end to the other longitudinal end of the open edge portion of the other case; the housing has a sealing part coming in contact with the sealing member and extending on the surface of the housing so as to have a loop shape; the sealing part of the housing includes a connector-side protruding portion and a connector-side recess portion that are connected to each other; the connector-side protruding portion is fitted into the casing-side recess portion through the sealing member; and the casing-side protruding portion is fitted into the connector-side recess portion through the sealing member.