EP1615242A3 - Electromagnetic actuator - Google Patents

Electromagnetic actuator Download PDF

Info

Publication number
EP1615242A3
EP1615242A3 EP05012955A EP05012955A EP1615242A3 EP 1615242 A3 EP1615242 A3 EP 1615242A3 EP 05012955 A EP05012955 A EP 05012955A EP 05012955 A EP05012955 A EP 05012955A EP 1615242 A3 EP1615242 A3 EP 1615242A3
Authority
EP
European Patent Office
Prior art keywords
electromagnet
yoke
armature
core
armature plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05012955A
Other languages
German (de)
French (fr)
Other versions
EP1615242B1 (en
EP1615242A2 (en
Inventor
Thomas Dr.-Ing. Roschke
Steffen Dipl.-Ing. Schnitter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson Electric Dresden GmbH
Original Assignee
Saia Burgess Dresden GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saia Burgess Dresden GmbH filed Critical Saia Burgess Dresden GmbH
Publication of EP1615242A2 publication Critical patent/EP1615242A2/en
Publication of EP1615242A3 publication Critical patent/EP1615242A3/en
Application granted granted Critical
Publication of EP1615242B1 publication Critical patent/EP1615242B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/14—Pivoting armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/081—Magnetic constructions
    • H01F2007/085—Yoke or polar piece between coil bobbin and armature having a gap, e.g. filled with nonmagnetic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F3/14—Constrictions; Gaps, e.g. air-gaps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1638—Armatures not entering the winding
    • H01F7/1646—Armatures or stationary parts of magnetic circuit having permanent magnet

Abstract

Die Erfindung betrifft einen elektromagnetischen Aktuator, insbesondere einen bipolaren elektromagnetischen Aktuator, der beispielsweise zum gesteuerten Schalten, als Schließ- und Verriegelungssystem, als Hubmagnet sowie als Dreh- und Schwingmagnet Anwendung findet.
Nach der Konzeption der Erfindung besteht der elektromagnetische bipolare Aktuator aus einem einen Kern (1.2) und eine Erregungswicklung (1.1) aufweisenden Elektromagneten (1), einem zwischen einer Offenstellung und einer Schließstellung in Richtung der Längsachse des Elektromagneten (1) beweglichen und mit der Kraft eines Federelements (5) beaufschlagbaren Anker (2), sowie einem in Bewegungsrichtung des Ankers (2) sich erstreckenden Jochschenkel (1.3), der über einen Jochsockel mit dem Kern (1.2) des Elektromagneten (1) verbunden ist. Der Jochschenkel (1.3) verläuft parallel zum Kern (1.2) des Elektromagneten. Der Anker (2) umfasst einen von einem oberen Ankerblech (2.3) und von einem unteren Ankerblech (2.1) sandwichartig eingeschlossenen polarisierten Permanentmagnet (2.2), der zumindest mit einer Stirnseite des oberen Ankerblechs (2.3) am Joch (1.3) anliegt und bei dem zwischen zumindest einer Stirnseite des unteren Ankerblechs (2.1) und dem Joch (1.3) ein Nebenluftspalt (3) vorhanden ist.The invention relates to an electromagnetic actuator, in particular a bipolar electromagnetic actuator, which is used for example for controlled switching, as locking and locking system, as a solenoid and as a rotary and vibrating magnet.
According to the concept of the invention, the electromagnetic bipolar actuator consists of a core (1.2) and an excitation winding (1.1) having electromagnet (1), one between an open position and a closed position in the direction of the longitudinal axis of the electromagnet (1) movable and with the force a yoke leg (1.3) which extends in the direction of movement of the armature (2) and which is connected via a yoke base to the core (1.2) of the electromagnet (1). The yoke leg (1.3) runs parallel to the core (1.2) of the electromagnet. The armature (2) comprises a polarized permanent magnet (2.2) which is sandwiched by an upper armature plate (2.3) and by a lower armature plate (2.1) and bears against the yoke (1.3) at least with one end face of the upper armature plate (2.3) between at least one end face of the lower armature plate (2.1) and the yoke (1.3) a secondary air gap (3) is present.

Zur Einnahme der Offenstellung und der Schließstellung des Ankers (2) wird die Erregungswicklung (1.1) mittels eines Stromimpulses von geeigneter Polarität derart beaufschlagt, dass die Summe der durch die beiden Magnetfelder des Elektromagneten (1) und des Permanentmagneten (2.2) hervorgerufenen Kraftwirkung kleiner bzw. größer als die Federkraft des Federelements (5) ist.

Figure imgaf001
For taking the open position and the closed position of the armature (2), the excitation winding (1.1) is acted upon by means of a current pulse of suitable polarity such that the sum of the force caused by the two magnetic fields of the electromagnet (1) and the permanent magnet (2.2) is smaller or smaller greater than the spring force of the spring element (5).
Figure imgaf001
EP05012955.0A 2004-07-06 2005-06-16 Electromagnetic actuator Not-in-force EP1615242B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410034296 DE102004034296B3 (en) 2004-07-06 2004-07-06 Electromagnetic actuator, e.g. for controlled switching, has armature with polarized permanent magnet between armature plates in sandwich construction that contacts yoke at least with end of upper plate, air gap between lower plate, yoke

Publications (3)

Publication Number Publication Date
EP1615242A2 EP1615242A2 (en) 2006-01-11
EP1615242A3 true EP1615242A3 (en) 2011-09-14
EP1615242B1 EP1615242B1 (en) 2015-08-26

Family

ID=34609657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05012955.0A Not-in-force EP1615242B1 (en) 2004-07-06 2005-06-16 Electromagnetic actuator

Country Status (2)

Country Link
EP (1) EP1615242B1 (en)
DE (1) DE102004034296B3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011082114B3 (en) * 2011-09-05 2013-01-31 Siemens Aktiengesellschaft Electromagnetic drive
DE102015219176B3 (en) * 2015-10-05 2017-03-30 Conti Temic Microelectronic Gmbh Pneumatic solenoid valve
CN108447647B (en) * 2018-04-16 2023-07-11 浙江工业大学 Wet-type four-magnet column type electromagnet based on electric excitation
CN111313648B (en) * 2020-04-26 2024-04-09 山东理工大学 Electromagnetic linear actuator based on reed valve heat dissipation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3914723A (en) * 1974-07-15 1975-10-21 Price Edison Inc Positive action magnetic latching relay
GB2003327A (en) * 1977-08-23 1979-03-07 Olympus Optical Co Improvements in or relating to release electromagnet assemblies
EP0232728A1 (en) * 1986-01-16 1987-08-19 Siemens Aktiengesellschaft Electromagnetic relay
US5574416A (en) * 1994-12-26 1996-11-12 Nippondenso Co., Ltd. Electromagnetic relay
DE19641407C1 (en) * 1996-10-08 1998-01-15 Eh Schrack Components Ag Bistable electromagnet system for relay

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10207828B4 (en) * 2002-02-25 2004-10-07 Technische Universität Dresden Electromagnetic solenoid

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3914723A (en) * 1974-07-15 1975-10-21 Price Edison Inc Positive action magnetic latching relay
GB2003327A (en) * 1977-08-23 1979-03-07 Olympus Optical Co Improvements in or relating to release electromagnet assemblies
EP0232728A1 (en) * 1986-01-16 1987-08-19 Siemens Aktiengesellschaft Electromagnetic relay
US5574416A (en) * 1994-12-26 1996-11-12 Nippondenso Co., Ltd. Electromagnetic relay
DE19641407C1 (en) * 1996-10-08 1998-01-15 Eh Schrack Components Ag Bistable electromagnet system for relay

Also Published As

Publication number Publication date
EP1615242B1 (en) 2015-08-26
EP1615242A2 (en) 2006-01-11
DE102004034296B3 (en) 2005-06-23

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