Elliptical unit block for preparing core using soft magnetic metal powder, and powdered magnetic core prepared using same

Abstract

The present invention relates to an elliptical unit block for preparing a core using a soft magnetic metal powder, and a core with excellent high current DC bias characteristics using the same, and more specifically, to an elliptical unit block for preparing a core using a soft magnetic metal powder used in an inductor for an automotive electronic sub-assembly using a high current buck or boost inductor or a three phase line reactor or fuel cell system for power factor correction (PFC), and a powdered magnetic core prepared using the same.

Description

technical field [0001] The present invention relates to powdery magnetic cores prepared with elliptical unit blocks, which can be used in high current applications such as photovoltaic industry, wind power generation, vehicles and the like. [0002] The present invention relates to an elliptical unit block for producing a core using soft magnetic metal powder and a core having excellent high-current direct current (DC) bias characteristics produced using the same, and more particularly, to a method for using soft magnetic metal powder Elliptical unit blocks for preparing cores and powdery magnetic cores prepared using the same for high-current step-down inductors for power factor correction (PFC), high-current step-up inductors, or three-phase lines A reactor or an inductor used as an electric device of a vehicle using a fuel cell system. Background technique [0003] Utilize pure iron, silicon steel plate, amorphous metal, etc. to prepare soft magnetic cores in the related...

AI Technical Summary

Problems solved by technology

[0010] An aspect of the present invention can provide an elliptical unit block for producing a core using soft magnetic metal powder and a powdery magnetic core produced using the same, the elliptical unit block can be formed by preventing it from having a core other than a quadrangle. Solving the problem of stacked silicon steel sheets or amorphous metals with a low degree of shape freedom in the related art, the elliptical unit block can reduce copper loss while selectively using MPP according to the use and the size and cost of the inductor powder, high-flux powder, sendust powder or Mega Flux (silicon steel powder) to facilitate high-density formation, and it is used for high-current reactors for power factor correction (PFC); or for photovoltaic power generation or Inductor filters for inverters in wind power generation, etc.; in inductors for large DC-DC converters in photovoltaics and electric vehicles; or in inductors for electric vehicles using fuel cell systems

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