The present application discloses a terminal structure for conduction cooling high temperature superconducting cable, comprising: a cable terminal body; a terminal thermal insulation shell, in which a vacuum thermal insulation cavity is formed, and the cable terminal body being arranged in the vacuum thermal insulation cavity; a refrigeration mechanism comprising a refrigeration output part extending into the vacuum thermal insulation cavity, and the refrigeration output part being connected to the cable terminal body through a cooling-conducting structure. The terminal structure provided by the present application cools the high-temperature superconducting cable by means of conduction cooling of a refrigerator without operations of low-temperature liquid transportation and supplementary, and can operate for a long time without regular maintenance, reduce the heat leakage of the cable terminal, improve the utilization efficiency of the cooling capacity of the refrigerator, and effectively ensure the stable operation of the cable for a long time.

Disclosed is a threading device suitable for a building electrical pipeline. The threading device comprises a fan, a take-up and pay-off main machine and a connecting hose. A take-up state induction mechanism mainly composed of a bent pipe converging device, a first rotating shaft, a bent pipe converging device lifting spring and a first microswitch is creatively arranged in a ventilation bin. When a strong wire is tightened, the bent pipe converging device is easy to rotate along with tightening of the strong wire, and the strong wire makes contact with the first microswitch in time when being tightened. After the strong wire is loosened, the bent pipe converging device can automatically return under the action of the bent pipe converging device lifting spring, and the take-up state of a wire wheel is recovered.

Disclosed is a threading device suitable for a building electrical pipeline. The threading device comprises a fan, a take-up and pay-off main machine and a connecting hose. A take-up state induction mechanism mainly composed of a bent pipe converging device, a first rotating shaft, a bent pipe converging device lifting spring and a first microswitch is creatively arranged in a ventilation bin. When a strong wire is tightened, the bent pipe converging device is easy to rotate along with tightening of the strong wire, and the strong wire makes contact with the first microswitch in time when being tightened. After the strong wire is loosened, the bent pipe converging device can automatically return under the action of the bent pipe converging device lifting spring, and the take-up state of a wire wheel is recovered.

A housing for electrical components is provided with a substrate. Sidewalls extend from the substrate to define a cavity configured to receive electrical components. A cooling channel is formed integrally along and unitary with the substrate, spaced apart from the cavity, with a mating surface for at least one fluid cover. At least one fluid cover is mountable on the mating surface for at least one fluid cover to enclose the cooling channel and to redirect a fluid when present within the cooling channel.

A housing for electrical components is provided with a substrate. Sidewalls extend from the substrate to define a cavity configured to receive electrical components. A cooling channel is formed integrally along and unitary with the substrate, spaced apart from the cavity, with a mating surface for at least one fluid cover. At least one fluid cover is mountable on the mating surface for at least one fluid cover to enclose the cooling channel and to redirect a fluid when present within the cooling channel.

An embodiment of the present disclosure provides an electromagnetic shield member that can improve heat dissipation from an electric wire, and a wire harness that includes the electromagnetic shield member. An electromagnetic shield member has rectangular tubular housing portions in which electric wires are individually housed. The housing portions are provided with pressing portions that are formed by cutting and raising portions of the housing portions inward, and that press the electric wires.

An embodiment of the present disclosure provides an electromagnetic shield member that can improve heat dissipation from an electric wire, and a wire harness that includes the electromagnetic shield member. An electromagnetic shield member has rectangular tubular housing portions in which electric wires are individually housed. The housing portions are provided with pressing portions that are formed by cutting and raising portions of the housing portions inward, and that press the electric wires.

A wire harness unit including: a plurality of conductive paths; and a cooling tube through which a coolant is able to flow for cooling the plurality of conductive paths, wherein: the plurality of conductive paths include a first conductive path and a second conductive path parallel with the first conductive path, the first conductive path includes a first tubular conductor that is conductive and hollow, the second conductive path includes a second tubular conductor that is conductive and hollow, the cooling tube is separate from the first tubular conductor and the second tubular conductor, the first tubular conductor and the second tubular conductor are more rigid than the cooling tube, and the cooling tube includes a first section extending through the first tubular conductor, a second section extending through the second tubular conductor, and a turnback portion that links the first section and the second section.

A wire harness unit including: a plurality of conductive paths; and a cooling tube through which a coolant is able to flow for cooling the plurality of conductive paths, wherein: the plurality of conductive paths include a first conductive path and a second conductive path parallel with the first conductive path, the first conductive path includes a first tubular conductor that is conductive and hollow, the second conductive path includes a second tubular conductor that is conductive and hollow, the cooling tube is separate from the first tubular conductor and the second tubular conductor, the first tubular conductor and the second tubular conductor are more rigid than the cooling tube, and the cooling tube includes a first section extending through the first tubular conductor, a second section extending through the second tubular conductor, and a turnback portion that links the first section and the second section.

An aircraft including: a wing having a leading edge; an electric motor mounted on the wing; and an electric power cable in the wing for providing power to the electric motor, wherein the electric power cable runs through a duct in the wing; the duct comprises an air inlet and an air outlet; and the electric power cable is cooled by air passing through the duct between the air inlet and the air outlet.