Rotor and reluctance motor
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 10, 2020
Grant Date -
Jul 4, 2019
app pub date -
Mar 11, 2019
filing date -
Mar 11, 2019
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
According to one embodiment, a rotor includes a shaft and a rotor core. A plurality of flux barriers are formed at the rotor core. The flux barrier has a plurality of bridges, and one or more barrier regions. When a width of the bridge of a first flux barrier is defined as wa, a width of the bridge of a second flux barrier is defined as wb, a value obtained by dividing a radius of a smallest circle that is tangent to a central line of the first flux barrier by an outer radius of the rotor core is defined as a, and a value obtained by dividing a radius of a smallest circle that is tangent to a central line of the second flux barrier by the outer radius of the rotor core is defined as b, and when f(x)=(1−x{circumflex over ( )}2){circumflex over ( )}(3/2) and g(x)=(1−x{circumflex over ( )}3), a relationship of f(b)/f(a)≤wb/wa≤g(b)/g(a) is satisfied.
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