| 摘要 |
PROBLEM TO BE SOLVED: To provide a prevention structure of wrong assembling of a cover of an electric connection box, that requires no working for mounting the cover while visually inspecting a display part provided to the cover and that requires no detection structure of wrong assembling for a box body.SOLUTION: A prevention structure of wrong assembling of a cover of a relay box 11 includes: a first box body 17 attached to a vehicle; a plurality of circuit switch components 19 that are accommodated in the first box body 17, disposed according to arrangement patterns 33 dependent on the vehicle to configure an electric circuit; a first cover 15 that is mounted on the first box body 17 to cover the plurality of circuit switch components 19; and a parts detection projection 27 that is vertically provided on an inner surface of the first cover 15 and inserted in a third socket 37 in which no circuit switch component 19 is mounted in the arrangement patterns 33. |
