| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of constructing an amorphous metal motor component having a combination of superior magnetic and physical characteristics required for axial-direction magnetic-flux-type design. SOLUTION: A unitary amorphous metal magnetic component for an axial flux electric machine such as a motor or generator is formed from a spirally wound annular cylinder of ferromagnetic amorphous metal strips. The cylinder is adhesively bonded and provided with a plurality of slots formed in one of the annular faces of the cylinder and extending from the inner diameter to the outer diameter of the cylinder. The component is preferably employed in constructing a high efficiency, axial flux electric motor. When operated at an excitation frequency "f" to a peak induction level Bmax the unitary amorphous metal magnetic component has a core-loss less than "L" wherein L is given by the formula L=0.0074 f (Bmax)<1.3>+0.000282 f<1.5 >(Bmax)<2.4>, the core loss, excitation frequency and peak induction level being measured in watts per kilogram, hertz, and teslas, respectively. A single amorphous metal magnetic component used in an axial-direction magnetic-flux-type electronic device, such as a motor or a power generator, is formed by a ring-shaped cylinder that is a ferromagnetic amorphous metal strip wound in a spiral shape. The cylinder is bonded by an adhesive and includes a plurality of slots that are formed on one ring-shaped surface of the cylinder and extend from an inner diameter to an outer diameter of the cylinder. The component is preferably used when constructing a highly efficient axial-direction magnetic-flux-type electric motor. When the single amorphous metal magnetic component operates up to a peak dielectric level B<SB>max</SB>at an excitation frequency "f", the component has a core loss of less than "L". Here, L is expressed by an expression: L=0.0074f(B<SB>max</SB>)<SP>1.3</SP>+0.000282f<SP>1.5</SP>(B<SB>max</SB>)<SP>2.4</SP>. The core loss, excitation frequency, and peak dielectric level are measured in watt/kilogram, hertz, and tesla. COPYRIGHT: (C)2011,JPO&INPIT |
