초록 ▼

An electric machine has a stator body formed of a coil of concentric layers of amorphous metal tape and slots are formed in one end of the coil for receiving a stator winding. A rotor structure having permanent magnet poles embedded therein is placed adjacent the end surface of the stator and is cou

An electric machine has a stator body formed of a coil of concentric layers of amorphous metal tape and slots are formed in one end of the coil for receiving a stator winding. A rotor structure having permanent magnet poles embedded therein is placed adjacent the end surface of the stator and is coupled thereto through the axial gap between the stator and rotor. The magnets are held in place in a nonmagnetic matrix which consists of an epoxy fiber laminate material. By enlarging the outer diameter of the rotor with the epoxy fiber laminate material, the rotor serves as an integral flywheel structure.

대표청구항 ▼

An electrical machine comprising, in combination: a first ferromagnetic stator body; a rotor body disposed adjacent said stator body and being rotatable with respect thereto, said rotor body and stator body being separated from one another by an air gap and being magnetically coupled to one another

An electrical machine comprising, in combination: a first ferromagnetic stator body; a rotor body disposed adjacent said stator body and being rotatable with respect thereto, said rotor body and stator body being separated from one another by an air gap and being magnetically coupled to one another through said air gap; said stator body comprising a coil of concentric turns of a thin elongated amorphous metal tape wound in the form of an annulus with a central opening; said stator body annulus having first and second end surfaces, and a plurality of symmetrically distributed slots extending axially across at least a portion of the radial thickness of said first end surface and in a direction perpendicular to the layers of said tape and extending into said annulus for a predetermined depth; and stator winding means wound in said slots; said rotor body including a plurality of permanent magnets symmetrically located and circumferentially spaced relative to one another, around the axis of rotation of said rotor body; each of said permanent magnets being magnetized in a direction parallel to said axis of rotation and generally confronting a separate pole, respectively, defined at least in part by said stator winding means wound in said slots.