Electric connection box

An electric connection box comprising:

• a housing including an opening;
• a first lid portion including a first body wall that closes the opening of the housing, and a first peripheral wall extending from a periphery of the first body wall toward the housing;
• a groove provided between the first peripheral wall and a wall portion arranged to be spaced apart from the first peripheral wall;
• and
• a water stop wall provided on the first lid portion and configured to cover an opening of two ends of the groove in a longitudinal direction,
• wherein a bottom surface of the groove is provided with an inclined surface that moves away from the first lid portion as extending from a center toward two ends of the longitudinal direction.

An electric connection box comprising:

• a housing including an opening;
• a first lid portion including a first body wall that closes the opening of the housing, and a first peripheral wall extending from a periphery of the first body wall toward the housing;
• a groove provided between the first peripheral wall and a wall portion arranged to be spaced apart from the first peripheral wall;
• and
• a water stop wall provided on the first lid portion and configured to cover an opening of two ends of the groove in a longitudinal direction,
• wherein a protrusion is provided on the first lid portion, and
• wherein the protrusion protrudes toward the wall portion so as to cover an opening provided in the groove in a side of the first body wall in an extending direction of the first peripheral wall.