NOVELTY - The coil unit (4) has a case (8) for accommodating a coil (6) and a shielding case (11). A distribution path (12) is arranged on an outer peripheral wall (11a-2) of an outer side of the shielding case. Another shielding case (13) comprises an outer peripheral wall (13a-2) that is provided with another exhaust-port (13a-5) to exhaust air in the distribution path. An exhaust-port (11a-5) exhausts air within the former shielding case to the distribution path. A cylindrical communicating tube (11a-6) connects an inlet port (11a-4) and another inlet port (13a-4).    USE - Electric power feeding side coil unit for a non-contact electric power supply i.e. battery, of an electric vehicle.    ADVANTAGE - The latter exhaust-port exhausts air in the distribution path along the outer peripheral wall outer side of the case main body, so that thickness reduction of axial direction of the case can be achieved, and positional relationship of the latter exhaust port and the former inlet port can be arbitrarily set. The distribution path can be provided easily, thus improving waterproof dustproof performance. The former inlet port and the latter exhaust port of the former case main body are provided in opposing positions according to the unit, so that better ventilation within the former case main body can be achieved, and the coil can be cooled reliably. The latter inlet port and latter exhaust port of the distribution path are provided in winding direction of the unit such that object for air-intake and a duct hose for exhaust-gas can be arranged in the distribution path, so that construction can be made easily, and the unit can be installed in a parking space in an easy manner.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of an electric power feeding side coil unit.'(Drawing includes non-English language text)'    Electric power feeding side coil unit (4)    Coil (6)    Case (8)    Shielding cases (11, 13)    Outer peripheral walls of shielding cases (11a-2, 13a-2)    Inlet ports (11a-4, 13a-4)    Cylindrical communicating tube (11a-6)    Exhaust-ports (11a-5, 13a-5)    Distribution path (12)