Invention Grant
- Patent Title: Electromagnetic actuating device which is monostable in the currentless state and use of such an actuating device
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Application No.: US16092939Application Date: 2017-03-30
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Publication No.: US10832845B2Publication Date: 2020-11-10
- Inventor: Philipp Fangauer , Peter Vincon
- Applicant: ETO Magnetic GmbH
- Applicant Address: DE Stockach
- Assignee: ETO Magnetic GmbH
- Current Assignee: ETO Magnetic GmbH
- Current Assignee Address: DE Stockach
- Agency: Bachman and Lapointe PC
- Agent George Coury
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@54356059
- International Application: PCT/EP2017/057619 WO 20170330
- International Announcement: WO2017/178241 WO 20171019
- Main IPC: H01F7/08
- IPC: H01F7/08 ; H01F7/16 ; H01F7/122

Abstract:
An electromagnetic actuating device includes an armature, which has a permanent magnet and can move along a longitudinal axis between actuation positions relative to a stationary coil and in reaction to energization, armature has an engagement section for interacting with a plunger, and which armature can move from a first actuation position, which is stable in the currentless state, into a second actuation position against a restoring force of a spring, wherein the coil has a first coil unit, which acts on the armature and which releases the armature from the first actuation position, wherein the coil has a second coil unit which, during movement, applies to the armature a force which accelerates the armature, and wherein the coil has a restoring coil such that when the armature is returned from the second into the first actuation position, the restoring coil boosts the restoring force of the spring.
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