| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric connection box that can reduce the probability of failure caused by intrusion of foreign matters at maximum without sacrificing heat radiation and is adaptable to be mounted in a vehicle.SOLUTION: An electric connection box 1 includes a connection box main body which has an internal circuit and a first housing for housing the internal circuit and includes a concave portion formed on one side surface, at least two convex portions arranged to face each other around the concave portion, and a unit mounting portion provided to the convex portion, and a control board unit that has a control board connected to the internal circuit and a second housing for housing the control board and mounted on the unit mounting portion. A gap portion is formed between each peripheral wall portion of the second housing and a convex portion opposed thereto, and the second housing has a groove-like recess portion intercommunicating between the gap portions on a contact surface side with the unit mounting portion, and an opening portion formed in the recess portion.SELECTED DRAWING: Figure 1 |
