HOUSING AND ELECTRICAL CONNECTION BOX

A housing includes a housing main body and a lid body. The housing main body has a housing outer circumferential wall and a housing inner circumferential wall. The lid body has a top board, a lid body outer circumferential wall, a lid body inner circumferential wall, and ribs. An accommodation space includes a plurality of compartments that are positioned closer to the housing inner circumferential wall. The compartments include a first compartment that is positioned on a downstream side of a sealing rib in a water flow direction, and that is provided with electronic components that are able to accept electric power, and a second compartment that is positioned on an upstream side of the sealing rib, and that is not provided with the electronic components that are able to accept electric power.