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Current sensor having a laminated magnetic core
US9488679B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9488679-B2 |
| Application number | US-201314387423-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 29, 2013 |
| Priority date | May 25, 2012 |
| Publication date | Nov 8, 2016 |
| Grant date | Nov 8, 2016 |
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Abstract
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A current sensor includes a magnetic core with a gap in part of a circumference and formed in an annular shape, and a magneto-electric conversion element arranged in the gap, the magneto-electric conversion element detecting magnetic fluxes changing with a measurement target current passing through a hollow part of the magnetic core. The magnetic core is formed by laminating a plurality of materials in a direction except a circumferential direction, and is formed so that magnetic flux densities of two points in an area defined in advance as an area where a sensing part of the magneto-electric conversion element can exist (hereinafter referred to as a sensing part existence area) approximate to each other, the two points being away from each other with a distance in a laminating direction being a length of the sensing part in the laminating direction.
First claim
Opening claim text (preview).
What is claimed is: 1. A current sensor comprising: a magnetic core with a gap in part of a circumference and formed in an annular shape; and a magneto-electric conversion element arranged in the gap, the magneto-electric conversion element detecting magnetic fluxes changing with a measurement target current passing through a hollow part of the magnetic core; wherein the magnetic core is formed by laminating a plurality of sheets of different materials in a direction except…
Assignees
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Classifications
- G01R19/0092Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G01R15/202Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US9488679B2 cover?
- A current sensor includes a magnetic core with a gap in part of a circumference and formed in an annular shape, and a magneto-electric conversion element arranged in the gap, the magneto-electric conversion element detecting magnetic fluxes changing with a measurement target current passing through a hollow part of the magnetic core. The magnetic core is formed by laminating a plurality of mate…
- Who is the assignee on this patent?
- Japan Aviation Electronics Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification G01R19/0092. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 08 2016 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).