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    • 74. 发明申请
    • Economical Core Design for Electromagnetic Devices
    • 电磁设备的经济核心设计
    • US20120068805A1
    • 2012-03-22
    • US12883310
    • 2010-09-16
    • Michael LevinAndrii Valentyn Lavreniuk
    • Michael LevinAndrii Valentyn Lavreniuk
    • H01F27/245H01F17/04
    • H01F27/245H01F17/04
    • A magnetic core for an electromagnetic device is formed from alternating interleaved steel laminations. The core comprises a plurality of core elements comprising legs and yokes oriented substantially quadrature to the legs, such that abutting core elements are in substantially quadrature relation. A plurality of flux deflection zones are defined in regions where flux flows from one core element to an abutting core element. At least one of the layers has at least one core element composed of grain-oriented steel, and the remaining core elements are composed of non-grain-oriented steel, such that at least some flux deflection zones are composed of a substantial amount or substantially entirely of non-grain-oriented steel. Flux flowing in the direction of the grain orientation in the core element(s) composed of grain-oriented steel changes direction to flow through the abutting core element in the flux deflection zone composed of non-grain-oriented steel. This reduces the power losses in flux deflection zones of the core relative to cores formed entirely from grain-oriented steel, because the flux is never flowing perpendicular to the direction of the grains in the steel, while providing a design that is considerably less expensive than cores formed from non-grain-oriented steel with substantially the same level of power losses or lower.
    • 用于电磁装置的磁芯由交替的交错钢叠片形成。 芯包括多个芯元件,其包括与腿部基本正交定向的腿和轭,使得邻接的芯元件处于基本正交关系。 多个磁通偏转区被限定在磁通量从一个芯元件流到邻接芯元件的区域中。 至少一个层具有由晶粒取向钢构成的至少一个核心元件,剩余的芯元件由非晶取向钢构成,使得至少一些通量偏转区域由大量或基本上由 完全是非晶取向钢。 在由晶粒取向钢构成的芯体中的晶粒取向方向上流动的磁通改变方向流过由非晶取向钢构成的磁通偏转区域中的抵接芯元件。 这样就可以降低核心相对于完全由晶粒取向钢芯形成的芯的磁通偏转区域的功率损耗,因为焊剂永远不会垂直于钢中的晶粒方向流动,同时提供的设计比 由非晶粒取向钢形成的铁芯具有基本上相同的功率损失水平或更低。