Segmented permanent magnets
US-2017092399-A1 · Mar 30, 2017 · US
Internally segmented magnets
US10347406B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10347406-B2 |
| Application number | US-201514867064-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 28, 2015 |
| Priority date | Sep 28, 2015 |
| Publication date | Jul 9, 2019 |
| Grant date | Jul 9, 2019 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An internally segmented magnet is disclosed. The magnet may include a first layer of a permanent magnetic material, a second layer of a permanent magnetic material, and an insulating layer separating the first and second layers. The insulating layer may include a ceramic mixture of at least a first ceramic material and a second ceramic material. The mixture having a melting point of up to 1,100° C. and may be a eutectic, or near eutectic, composition. The magnet may be formed by forming a first layer of powdered permanent magnetic material, depositing an insulating layer over the first layer, depositing a second layer of powdered permanent magnetic material over the insulating layer to form an internally segmented magnet stack, and sintering the magnet stack. The ceramic materials may include a halogen and an alkaline earth metal, alkali metal, or a metal having a +3 or +4 oxidation state.
First claim
Opening claim text (preview).
What is claimed is: 1. An internally segmented magnet, comprising: first and second layers of a permanent magnetic material; and an insulating layer separating the first and second layers and consisting of a binary ceramic mixture including 30% to 70% CaF 2 and 30% to 70% MgF 2 , and about 5 wt. % iron to about 15 wt. % iron.
Assignees
Inventors
Classifications
sintered · CPC title
sintered · CPC title
Magnetic circuits with PM for power or force generation · CPC title
Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties · CPC title
- H01F7/021Primary
Construction of PM (H01F7/0278 takes precedence; PM compositions H01F1/032) · CPC title
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- What does patent US10347406B2 cover?
- An internally segmented magnet is disclosed. The magnet may include a first layer of a permanent magnetic material, a second layer of a permanent magnetic material, and an insulating layer separating the first and second layers. The insulating layer may include a ceramic mixture of at least a first ceramic material and a second ceramic material. The mixture having a melting point of up to 1,100…
- Who is the assignee on this patent?
- Ford Global Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification H01F7/021. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 09 2019 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).