Patent ID: 8337227

Claim:
A water stop structure for a wire harness for connecting an electronic control unit installed in an automotive vehicle or a motorcycle and devices, characterized in that: the wire harness is divided in an arrangement direction into a first wire harness section for connection to the electronic control unit and a second wire harness section for connection to the devices, terminals are respectively connected to both ends of wires of the divided wire harnesses, the terminals of the first wire harness section opposite the electronic control unit being mounted into a first connector and the terminals of the second wire harness section opposite the devices being mounted into a second connector, an intermediate connector is provided which includes an outer tube having opposite first and second ends, a first connector fitting portion adjacent the first end of the outer tube and a second connector fitting portion adjacent the second end of the outer tube, into which the first and second connectors are respectively to be fitted, and a partition wall portion formed from a resin material and disposed in the outer tube between the first and second connector fitting portions, intermediate terminals are inserted through the partition wall portion of the intermediate connector and electrical contact portions at both ends of the respective intermediate terminals project into the first and second connector fitting portions, and a waterproofing agent is applied to parts of the intermediate terminals to be located in the partition wall beforehand and embedded in the partition wall by insert molding so that the waterproofing agent on each of the intermediate terminals is spaced from the waterproofing agent on each other one of the intermediate terminals, the waterproofing agent on each of the intermediate terminals being surrounded and engaged by the resin on the partition wall.