Abstract: The invention offers a superconducting coil, which is an oxide superconducting coil 10 that has the shape of a saddle formed by winding an oxide superconducting wire 11 in the shape of a racetrack and that has a curved portion 10b and a linear portion 10a connected to the curved portion 10b. At least in the central portion of the linear portion 10a, an upper end 10d is positioned at the inner-circumference side in comparison with a lower end 10e. Having the foregoing configuration, the superconducting coil formed of an oxide super-conducting wire can suppress the reduction in its electrical property caused by the lines of magnetic flux when used in a rotating machine such as a motor. The invention also offers a superconducting-coil assembly formed by using the foregoing superconducting coils and a rotating machine incorporating the foregoing superconducting coil (superconducting-coil assembly).

Abstract: A superconducting coil and a rotating device, the performances of which are improved, and a superconducting coil manufacturing method are provided. A superconducting coil 10 is a saddle-shaped superconducting coil formed by winding a superconducting wire so as to form a race-track-like shape. The superconducting coil includes a curved portion 10b and a straight portion 10a connected to the curved portion 10b. In the curved portion 10b, an upper edge 10c is positioned closer to an inner peripheral side than a lower edge 10d is, and in the straight portion 10a, the upper edge 10c is positioned closer to an outer peripheral side than the lower edge 10d is.

Abstract: A superconducting coil body and a superconducting device are provided so as to achieve reduction of loss. A superconducting coil body includes: an inner circumferential coil body serving as a coil main body portion in which a superconducting wire is wound; and a first magnetic body serving as a magnetic circuit member. The magnetic circuit member is formed of a magnetic body, and is disposed to face the upper surface of the inner circumferential coil body, the upper surface being positioned at an end surface side thereof crossing a main surface of the superconducting wire in the inner circumferential coil body. The first magnetic body is used to form a magnetic circuit for permitting magnetic flux, which is generated by a current flowing in the coil main body portion, to travel around the current.

Abstract: A superconducting coil apparatus and a superconducting apparatus including the superconducting coil apparatus are provided. The superconducting coil apparatus includes a superconducting coil 10, an inner container 50 that holds the superconducting coil 10 therein, and an outer container 60. The inner container 50 and the outer container 60 are made of FRP. At a corner portion 71 of the inner container 50 and the outer container 60, a sealing reinforcement portion 2 made of a resin is formed so as to extend along the corner portion 71. Opening portions 53 and 63 are formed in side surfaces of the inner container 50 and the outer container 60. The sealing reinforcement portion 2 is disposed at the corner portion 71 of the opening portions 53 and 63, whereby the sealing performance of the container can be improved.

Abstract: A superconducting coil and a rotating device, the performances of which are improved, and a superconducting coil manufacturing method are provided. A superconducting coil 10 is a saddle-shaped superconducting coil formed by winding a superconducting wire so as to form a race-track-like shape. The superconducting coil includes a curved portion 10b and a straight portion 10a connected to the curved portion 10b. In the curved portion 10b, an upper edge 10c is positioned closer to an inner peripheral side than a lower edge 10d is, and in the straight portion 10a, the upper edge 10c is positioned closer to an outer peripheral side than the lower edge 10d is.

Abstract: The invention offers a container for a superconducting apparatus and a superconducting apparatus. The container mounts in it a superconducting coil as a member including a superconductor. The container is provided with a vacuum insulated container 20 as a housing case made of resin and provided with an opening, a lead electrode 50 as a metal member positioned such that it passes through the opening, and a combination of connecting members 63 and 65 that covers the opening, that connects the lead electrode 50 to the vacuum insulated container 20, and that is provided with a curved portion as a thermal-stress-alleviating portion. Having the foregoing structure, the container can suppress the development of separation and cracks at the portion where the metal member passes though and is fixed to the wall of the container that mounts in it a superconductor such as a superconducting coil.

Abstract: A superconducting coil apparatus and a superconducting apparatus including the superconducting coil apparatus are provided. The superconducting coil apparatus includes a superconducting coil 10, an inner container 50 that holds the superconducting coil 10 therein, and an outer container 60. The inner container 50 and the outer container 60 are made of FRP. At a corner portion 71 of the inner container 50 and the outer container 60, a sealing reinforcement portion 2 made of a resin is formed so as to extend along the corner portion 71. Opening portions 53 and 63 are formed in side surfaces of the inner container 50 and the outer container 60. The sealing reinforcement portion 2 is disposed at the corner portion 71 of the opening portions 53 and 63, whereby the sealing performance of the container can be improved.

Abstract: The invention offers a superconducting coil, which is an oxide superconducting coil 10 that has the shape of a saddle formed by winding an oxide superconducting wire 11 in the shape of a racetrack and that has a curved portion 10b and a linear portion 10a connected to the curved portion 10b. At least in the central portion of the linear portion 10a, an upper end 10d is positioned at the inner-circumference side in comparison with a lower end 10e. Having the foregoing configuration, the superconducting coil formed of an oxide super-conducting wire can suppress the reduction in its electrical property caused by the lines of magnetic flux when used in a rotating machine such as a motor. The invention also offers a superconducting-coil assembly formed by using the foregoing superconducting coils and a rotating machine incorporating the foregoing superconducting coil (superconducting-coil assembly).

Abstract: The invention offers a container for a superconducting apparatus and a superconducting apparatus. The container mounts in it a superconducting coil as a member including a superconductor. The container is provided with a vacuum insulated container 20 as a housing case made of resin and provided with an opening, a lead electrode 50 as a metal member positioned such that it passes through the opening, and a combination of connecting members 63 and 65 that covers the opening, that connects the lead electrode 50 to the vacuum insulated container 20, and that is provided with a curved portion as a thermal-stress-alleviating portion. Having the foregoing structure, the container can suppress the development of separation and cracks at the portion where the metal member passes though and is fixed to the wall of the container that mounts in it a superconductor such as a superconducting coil.