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US-9208966-B2 · Dec 8, 2015 · US
Electromagnetic drive
US8975992B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8975992-B2 |
| Application number | US-201214342833-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 23, 2012 |
| Priority date | Sep 5, 2011 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
An electromagnetic drive for an electrical switch such as a circuit breaker, has at least one movable armature that can implement a lifting movement along a pushing direction for moving a movable switching contact of the switch. In a closed armature position, the armature closes a magnetic circuit through first and second magnetically conductive yoke parts. A permanent magnet produces a magnetic field for the magnetic circuit and a holding force for holding the armature in the closed position. A coil is disposed to generate a magnetic flux in the same or opposite direction as the magnetic flux of the permanent magnet. The electromagnetic drive can be readjusted after installation, where the first and second yoke parts are moved relative to one another by the permanent magnet into the adjusted state, whereupon they are fixed in position.
First claim
Opening claim text (preview).
The invention claimed is: 1. An electromagnetic drive for an electrical switch with a movable switching contact, the electromagnetic drive comprising: a movable armature to be connected to the movable switching contact of the switch and disposed to implement a lifting movement along a predetermined pushing direction and to assume a closed position, said movable armature having a first armature-side stop face and a second armature-side stop face; a yoke having a first magneticall…
Assignees
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Classifications
- H01H3/28Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8975992B2 cover?
- An electromagnetic drive for an electrical switch such as a circuit breaker, has at least one movable armature that can implement a lifting movement along a pushing direction for moving a movable switching contact of the switch. In a closed armature position, the armature closes a magnetic circuit through first and second magnetically conductive yoke parts. A permanent magnet produces a magneti…
- Who is the assignee on this patent?
- Böttcher Martin, Kampf Marcus, Siemens Ag
- What technology area does this patent fall under?
- Primary CPC classification H01H3/28. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 10 2015 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).