Composite for inductor used in power conversion devices such as power converters, transformers, filters and isolators, comprises core of soft-magnetic alloy, and electrically insulating magnetically active shell which forms conformal coating on core
	MANDAL D; METI S; ARACKAL S; SAI R; BHAT N; SHIVASHANKAR S A
	2024-01-31
专利权人	INDIAN INST SCI (INDF-C)
申请日期	2024-01-31
专利号	IN202441006563-A
成果简介	NOVELTY - Composite comprises a core of soft-magnetic alloy; and an electrically insulating magnetically active shell that forms a conformal coating on the core. The alloy particles comprise at least two elements selected from iron (Fe), niobium (Nb), copper (Cu), silicon (Si), boron (B), cobalt (Co), manganese (Mn), chromium (Cr), and/or rare earth metals. The shell comprises oxides of metals selected from magnesium (Mg), nickel (Ni), zinc (Zn), copper (Cu), Co, Mn, Cr, titanium (Ti), strontium (Sr), barium (Ba), Fe, or rare-earth metals. The shell is nanocrystalline or amorphous. The shell comprises an inorganic, electrically insulating oxide selected from magnesium oxide, alumina, silica, nickel ferrite, zinc ferrite (ZnFe2O4), (Ni,Zn)Fe2O4, or (Mn,Zn)Fe2O4. USE - The composite is useful in an inductor that is used in power conversion devices such as power converters, transformers, filters, isolators, or other power circuits (all claimed). ADVANTAGE - The composite can be compacted to form an inductor core of a desired shape, such as a toroid or a pot-core, providing flexibility in the design and construction of the inductor. This flexibility allows the inductors to be tailored to specific applications or performance requirements, illustrating the versatility and adaptability of the composite. The high-frequency operation also contributes to improved power conversion efficiency and increased power density, providing improvements over traditional inductors that are limited to operation at frequencies up to several hundred kHz. Despite this insulation, the alloy particles remain magnetically coupled, allowing for operation at high frequencies, up to 10 MHz, enabling the miniaturization of power converters, which is particularly beneficial in applications such as electric vehicles and consumer electronics. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a process of preparing the composite; (2) inductor; (3) method of making the inductor core; and (4) device.
IPC 分类号	H01F-001/04 ; H01F-001/047 ; H01F-001/053 ; H01F-001/14 ; H01F-001/18 ; H01F-017/04 ; H01F-003/08 ; H01F-041/02
国家	印度
专业领域	材料科学
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/18298
专题	中国科学院新疆生态与地理研究所
作者单位	INDIAN INST SCI (INDF-C)
推荐引用方式 GB/T 7714	MANDAL D,METI S,ARACKAL S,et al. Composite for inductor used in power conversion devices such as power converters, transformers, filters and isolators, comprises core of soft-magnetic alloy, and electrically insulating magnetically active shell which forms conformal coating on core. IN202441006563-A[P]. 2024.

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