Electric Transformer Component
US-2015380150-A1 · Dec 31, 2015 · US
Soft magnetic core with position-dependent permeability
US9812237B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9812237-B2 |
| Application number | US-201314394841-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 12, 2013 |
| Priority date | Apr 16, 2012 |
| Publication date | Nov 7, 2017 |
| Grant date | Nov 7, 2017 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Soft magnetic core, in which permeabilities that occur at least two different locations of the core are different.
First claim
Opening claim text (preview).
The invention claimed is: 1. A soft magnetic core, comprising at least a first portion having a first magnetic permeability and a second portion having a second magnetic permeability which is different from said first magnetic permeability and wherein a ratio of said first magnetic permeability to said second magnetic permeability is 1:1.1 or greater, and wherein said core comprises a soft magnetic tape and wherein said soft magnetic tape has a length and wherein a magnetic permeability of said tape increases over said length as said tape is radially wound from an interior of said core outwardly so that said magnetic permeability of said core increases in a radial direction moving outward from said interior of said core. 2. The soft magnetic core according to claim 1 , wherein said core has an annular shape. 3. The soft magnetic core according to claim 1 , wherein said core comprises at least two different soft magnetic elements each having a different magnetic permeability compared to the other that are joined to one another. 4. The soft magnetic core according to claim 3 , wherein one of said soft magnetic elements has an inherently nonhomogeneous magnetic permeability distribution and said other of said elements has a radially changing magnetic permeability. 5. The soft magnetic core according to claim 3 , wherein at least one of said soft magnetic elements comprises one or more tapes. 6. The soft magnetic core according to claim 1 , comprising a one-piece powder core element.
Assignees
Inventors
Classifications
Manufacturing of magnetic circuits by moulding or by pressing powder (magnetic cores made by moulding or by pressing powder H01F27/255; soft magnetic particles H01F1/20, H01F1/36) · CPC title
- H01F3/10Primary
Composite arrangements of magnetic circuits · CPC title
- H01F3/00Primary
Cores, Yokes, or armatures (magnetic materials H01F1/00; permanent magnets H01F7/02) · CPC title
Coils; Windings; Conductive connections · CPC title
made from powder (powder coatings on sheets H01F3/02; on strips or ribbons H01F3/04; on wires H01F3/06) · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9812237B2 cover?
- Soft magnetic core, in which permeabilities that occur at least two different locations of the core are different.
- Who is the assignee on this patent?
- Vacuumschmelze Gmbh & Co Kg
- What technology area does this patent fall under?
- Primary CPC classification H01F3/10. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 07 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).