Soft magnetic alloy powder, magnetic core, magnetic component, and electronic device
US-2024071660-A1 · Feb 29, 2024 · US
Soft magnetic alloy powder, magnetic core, magnetic component, and electronic device
US2024071663A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024071663-A1 |
| Application number | US-202318458597-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 30, 2023 |
| Priority date | Aug 31, 2022 |
| Publication date | Feb 29, 2024 |
| Grant date | — |
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Abstract
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A soft magnetic alloy powder comprises first particles to fifth particles, each having a particle size within a specific range. Among the first particles to the fifth particles, nth particles have an average particle size x n (μm), an average circularity y n , and a variance z n of circularity, where nth is any ordinal number from first to fifth. Points (x n , y n ) (n=1 to 5) plotted in an xy plane define an approximate straight line having a slope “my” of −0.0030 or more. Points (x n , z n ) (n=1 to 5) plotted in an xz plane define an approximate straight line having a slope “mz” of 0.00050 or less.
First claim
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What is claimed is: 1 . A soft magnetic alloy powder comprising: first particles including soft magnetic alloy particles having a particle size of D50 or less; second particles including soft magnetic alloy particles having a particle size of more than D50 and D60 or less; third particles including soft magnetic alloy particles having a particle size of more than D60 and D70 or less; fourth particles including soft magnetic alloy particles having a particle size of more than D70 and D80 or less; and fifth particles including soft magnetic alloy particles having a particle size of more than D80 and D90 or less, wherein nth particles among the first particles to the fifth particles have an average particle size x n (μm), an average circularity y n , and a variance z n of circularity, where nth is any ordinal number from first to fifth; points (x n , y n ) (n=1 to 5) plotted in an xy plane define an approximate straight line having a slope “my” of −0.0030 or more; and points (x n , z n ) (n=1 to 5) plotted in an xz plane define an approximate straight line having a slope “mz” of 0.00050 or less. 2 . A magnetic core comprising: first particles including soft magnetic alloy particles having a particle size of D50 or less; second particles including soft magnetic alloy particles having a particle size of more than D50 and D60 or less; third particles including soft magnetic alloy particles having a particle size of more than D60 and D70 or less; fourth particles including soft magnetic alloy particles having a particle size of more than D70 and D80 or less; and fifth particles including soft magnetic alloy particles having a particle size of more than D80 and D90 or less, wherein nth particles among the first particles to the fifth particles have an average particle size X n (μm), an average circularity Y n , and a variance Z n of circularity, where nth is any ordinal number from first to fifth; points (X n , Y n ) (n=1 to 5) plotted in an XY plane define an approximate straight line having a slope “mY” of −0.0030 or more; and points (X n , Z n ) (n=1 to 5) plotted in an XZ plane define an approximate straight line having a slope “mZ” of 0.00050 or less. 3 . The magnetic core according to claim 2 further comprising a resin. 4 . A magnetic component comprising the magnetic core according to claim 2 . 5 . An electronic device comprising the magnetic core according to claim 2 .
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Classifications
made from powder (powder coatings on sheets H01F3/02; on strips or ribbons H01F3/04; on wires H01F3/06) · CPC title
in the form of particles · CPC title
metals or alloys · CPC title
- H01F1/12Primary
of soft-magnetic materials · CPC title
- H01F1/20Primary
in the form of particles, e.g. powder (H01F1/147 takes precedence) · CPC title
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- What does patent US2024071663A1 cover?
- A soft magnetic alloy powder comprises first particles to fifth particles, each having a particle size within a specific range. Among the first particles to the fifth particles, nth particles have an average particle size x n (μm), an average circularity y n , and a variance z n of circularity, where nth is any ordinal number from first to fifth. Points (x n , y n ) (n=1 to 5) plotted in an x…
- Who is the assignee on this patent?
- Tdk Corp
- What technology area does this patent fall under?
- Primary CPC classification H01F1/12. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Feb 29 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).