EP2165347A1 - Magnetic drive system for a switchgear - Google Patents

Magnetic drive system for a switchgear

Info

Publication number
EP2165347A1
EP2165347A1 EP08760338A EP08760338A EP2165347A1 EP 2165347 A1 EP2165347 A1 EP 2165347A1 EP 08760338 A EP08760338 A EP 08760338A EP 08760338 A EP08760338 A EP 08760338A EP 2165347 A1 EP2165347 A1 EP 2165347A1
Authority
EP
European Patent Office
Prior art keywords
armature
channels
drive system
magnetic drive
holes
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
EP08760338A
Other languages
German (de)
French (fr)
Other versions
EP2165347B1 (en
Inventor
Ralf-Reiner Volkmar
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP2165347A1 publication Critical patent/EP2165347A1/en
Application granted granted Critical
Publication of EP2165347B1 publication Critical patent/EP2165347B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2209—Polarised relays with rectilinearly movable armature
    • 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
    • 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
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
    • 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
    • H01F2007/086—Structural details of the armature
    • 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
    • H01F2007/1669—Armatures actuated by current pulse, e.g. bistable actuators
    • 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
    • H01F2007/1676—Means for avoiding or reducing eddy currents in the magnetic circuit, e.g. radial slots

Definitions

  • the invention relates to a magnetic drive ⁇ system for a switching device specified in the preamble of claim 1. Art.
  • Such a bipolar drive system is z. B. from DE 197 09 089 Al already known.
  • the anchor here consists of a solid magnetic iron material, which makes it cheaper to manufacture than an assembled from layered electrical sheets anchor and often will have a greater long-term stability.
  • For the massive anchor itself has the disadvantage that compared to anchors made of layered electrical steel more eddy current losses occur and a stronger remanence is present, which makes it difficult, inter alia, the release of the switching contacts when switching.
  • the armature is provided with elongated hollow channels, which consist of narrow slots and extend in the feed direction of the armature and thus in the direction of the magnetic field lines.
  • the slits provided on the narrow sides of the anchor weaken the parallelepiped-shaped armature over a third of its cross-sectional width and over its entire length. From the broad sides of the anchor next to each other several parallel slots are recessed, which do not extend over the entire length of the armature but end at a distance to the end faces of the armature.
  • the mechanical Stability is formality of the armature but through the slots significantly impressive ⁇ adversely. Therefore, it is provided to increase the stability of the armature after introducing the slots by filling them with insulating material again. Precisely because these slots should be as tight as possible for technical reasons, that is Filling the slots technically but correspondingly difficult and significantly increases the cost of making the anchor.
  • the transitions between the contact surface of the armature and the yoke laminations should be able to be adapted as needed.
  • a Vermin ⁇ alteration of the contact surface resulting in an improved response in terms of a shorter switching time must be selected according ⁇ but are connected to the disadvantage of a reduced adhesive power of the anchor. Since too low adhesive force of the armature, however, adversely affects the reliability of the magnetic drive system, the known drive system can not meet the design requirements in many applications.
  • the invention is therefore based on the object to further develop a magneti ⁇ ULTRASONIC drive system of the type specified in the preamble of claim 1 in that the Stabili ⁇ ty of the armature is not excessively reduced by the design of which to reduce the eddy current losses.
  • the magnetic drive system according to the invention for a switching device comprises a magnetic yoke, in which a solid armature of magnetic material is linearly slid between two opposite end positions, and at least one permanent magnet for generating a magnetic flux in the magnetic yoke and at least one coil, through which Anchor between its end positions back and forth is movable, the armature to avoid eddy current losses is provided with elongated channels and the channels are circumferentially closed in the anchor at its periphery.
  • circumferentially closed channels in the anchor is achieved in a simple manner that the stability of the armature is hardly affected.
  • the technically complex filling of the channels can be omitted.
  • the introduced into the anchor channels consist of holes with a relatively small hollow cross-section.
  • Such holes do not necessarily have to be circular, but can also z. B. have an oval cross-section. If possible, however, the hollow cross-section should be designed so that there are no sharp corners on the peripheral wall delimiting the hollow cross-section.
  • the holes are circular, because they can then be produced inexpensively with drill drills.
  • the holes in the anchor are straight through ⁇ holes.
  • the holes may be formed as blind holes, which are drilled from both side surfaces.
  • the technical effect of a gap with respect to the Redu ⁇ cation of the eddy current losses can be enough if a plurality of channels of the armature are lined with a small distance from a row of holes or a plurality of rows of holes approximately ER.
  • Several rows of holes are expediently aligned parallel to each other along a straight line. It is particularly effective if the penetrated by the Ankerch ⁇ approximately rod end sides of the armature block at least one row of holes or more, especially two, three or four parallel rows of holes are connected by through-holes extending parallel to the broad sides of the armature near the hole of the armature guide rod.
  • Zvi ⁇ center rule can be provided rows of holes that at least one further row of holes or more, especially two, three or four rows of holes extending along the center longitudinal plane of the armature between its narrow sides or extend.
  • a further technical improvement is achieved if the broad sides of the anchor block are perforated over a plurality of rows whge ⁇ term of through holes.
  • two fields with rows of holes can be arranged next to the transverse plane of the armature guide rod.
  • Two anchor guide ⁇ rods mounted in opposite blind holes of the anchor so a remaining between the blind hole ends anchor area can be used with Vollmate ⁇ al additionally for a central arrangement of a through bore.
  • the run up all three spatial directions of drilling anchor block provides not only the reduction of eddy current losses already for a significant reduction of the Rema ⁇ nenzne Trent.
  • the reduction of the remanence is again RESIZE ⁇ SSER, though the cooperating with the abutment surfaces of the armature mating surfaces of each one or each plurality of rows of holes are perforated.
  • the magnet system has the advantage over the known system with slots as hollow channels that the formation of eddy currents in all three axial directions obstructed and thus reduced.
  • the operational safety remains undiminished na ⁇ hezu obtained since the adhesive force only slightly reduced during flexible ⁇ cher total induction and equal ⁇ time, the residual induction of the magnetic circuit decreases.
  • the latter effect is essentially based on, is that the genetic like ⁇ induction only locally increased selectively in the armature in the saturation region and thereby lowered into the local Perme ⁇ ABILITY.
  • the anchor mass is lower also, so that overall a lower remanence associated with improved dynamic properties of the anchor or the entire magnetic ⁇ system gives INS.
  • FIG. 1 shows a support structure of a magnetic drive system in a perspective oblique view
  • 4 is a front view of a narrow side of the separate anchor block
  • 5 is a front view of a broad side of the separate An ⁇ notch block
  • FIG. 6 shows a section through the anchor block according to the section line VI-VI in Fig. 5 and
  • Fig. 7 is a front view of an end face of the separate An ⁇ notch block.
  • FIG. 1 a supporting structure 1 of a not shown in the whole permanent magnetic drive ⁇ system for actuating a switching device.
  • This structure 1 comprises a cuboidal frame, which is composed of two magnetic yokes 2 and 3 with the interposition of two bearing plates 4 and 5.
  • Both magnet yokes 2 and 3 are designed mirror symmetry and have at both ends in each case angled by 90 degrees yoke legs, so that they are designed approximately U-shaped with respect to their basic shape.
  • the flat end surfaces of the oppositely directed yoke legs of the magnetic yokes 2 and 3 lie flat against the facing side surface of the bearing plate 4 and at the bottom of the facing side surface of the bearing plate 5, wherein the corresponding yoke legs are connected to each other via the bearing plates 4 and 5 respectively.
  • the armature 8 also comprises two Ankerin ⁇ approximately rods 9 which project centrally from the top or the bottom of the anchor block and are arranged geometrically coaxial zuein ⁇ other.
  • the armature guide rods 9 pass through a bearing bore 10 in their associated bearing plate 4 and 5 with little circumferential clearance and stand out with an end portion of the bearing bore 10 of their bearing plate 4 and 5, so that the armature 8 is vertically linearly slidably guided by the guide rods 9.
  • the yoke frame would be in the assembly still provided with two coils Polschenkeln and yoke legs, by the magnetic field of the armature 8 would be shifted at corresponding ⁇ Polides after overcoming its adhesion to the bearing plate 5 in its upper end position in which its feed by striking the Bottom of the bearing plate 4 would be limited. After reversal of the polarity of the magnetic field he would be depressed after overcoming the adhesion by magnetic forces back down to the end position shown on the bearing plate 5 and held in the contact position.
  • the mode of action of such magnetic drives is known as such, so that no further explanation is provided here.
  • the magnetic yokes 2 and 3 consist here of a plurality of thin ⁇ ner yoke plates, which are joined to the shown thick Jochblechstapel.
  • the armature 8 and the bearing plates 4 and 5 consist of blocks of ferromagnetic material of known type, in particular of a corresponding Eisenle ⁇ government.
  • a plurality of channels (hollow channels) 11, 12 and 13 are integrated in the solid block of the armature 8, which here have a matching diameter of 2 mm to 3 mm , all as through are trained bores and differ only in their length, since they enforce the block of the armature 8 in different directions.
  • the channels 11, 12 and 13 may alternatively be formed as blind holes, which are drilled from both side surfaces.
  • the channels 11 extend from the upper end face of the armature 8, run parallel to the central longitudinal axis of the armature guide rods 9 and thus at right angles to the plan
  • blind holes Be formed blind holes and ends at a distance in front of the blind hole 14.
  • Such blind holes as channels 12 should then end as possible at the same distance from the blind hole 14 as the lateral distance of the channels 11 on the front side of the armature 8. This distance is clearly visible in the frontal plan view according to FIG. In this case, however, the channels 12 would have to be drilled from the opposite end sides, which would result in a corresponding additional expenditure in the production of the armature 8.
  • the channels 13 are introduced, all of which extend at right angles to the longitudinal center plane of the armature 8.
  • the channels 13 go from one broad side of the armature 8 and open into the opposite broad side.
  • the hole pattern on the broad side comprises two rectangular hole fields, which consist of three parallel rows, each with six hollow channels 13, wherein the hollow channels 13 in the row and laterally have a matching distance from each other on ⁇ . These fields are located on both sides of a hole Mitt same ⁇ realm of the armature 8, in which the armature guide rods 9 are attached ⁇ arranged.
  • a single channel 13 ' is additionally centrally disposed, which also forms a connecting the broad sides through hole.
  • suitable Siert the hollow channel 13 'in this case a Vollmate ⁇ al Scheme of the anchor block which has been left between the ends of the two stanchions Sacklochboh ⁇ fourteenth thus, the stability of the An ⁇ core 8 is not significantly affected by the channel 13 '.
  • the channels (hollow channels) 15 two rows, each with six channels 15 are present, the preferably congruent to the channels 11 in the armature 8 are arranged ⁇ .

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Linear Motors (AREA)
  • Electromagnets (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

The invention relates to a magnetic drive system for a switchgear having a magnet yoke (2, 3) in which a solid armature (8) made of magnetic material is guided in a linearly displaceable manner between two opposing end positions, having at least one permanent magnet (6, 7) for generating a magnetic flux in the magnet yoke (2, 3), and having at least one coil by which the armature (8) can be moved back and forth between the end positions thereof, the armature (8) being provided with elongated hollow channels (11, 12, 13) for preventing eddy current losses. So as not to excessively reduce the stability of the armature (8) by the channels made therein (11, 12, 13, 13'), the invention provides for the channels (11, 12, 13, 13') in the armature (8) to be designed in a closed fashion on the circumference thereof.

Description

Beschreibungdescription
Magnetisches Antriebssystem für eine SchalteinrichtungMagnetic drive system for a switching device
Die Erfindung bezieht sich auf ein magnetisches Antriebs¬ system für eine Schalteinrichtung der im Oberbegriff von Patentanspruch 1 angegebenen Art.The invention relates to a magnetic drive ¬ system for a switching device specified in the preamble of claim 1. Art.
Eine derartiges bipolares Antriebssystem ist z. B. aus der DE 197 09 089 Al bereits bekannt. Der Anker besteht hierbei aus einem massiven magnetischen Eisenwerkstoff, wodurch er sich kostengünstiger fertigen lässt als ein aus geschichteten Elektroblechen zusammengesetzter Anker und häufig auch eine größere Langzeitstabilität aufweisen wird. Dafür hat der mas- sive Anker an sich den Nachteil, dass gegenüber Ankern aus geschichtetem Elektroblech mehr Wirbelstromverluste auftreten und eine stärkere Remanenz vorhanden ist, die u. a. das Lösen der Schaltkontakte beim Umschalten erschwert. Um die Wirbel¬ stromverluste zu reduzieren, ist der Anker mit länglichen Hohlkanälen versehen, die aus schmalen Schlitzen bestehen und sich in Vorschubrichtung des Ankers und somit in Richtung der magnetischen Feldlinien erstrecken. Die vorgesehenen Schlitze an den Schmalseiten des Ankers schwächen den quaderförmigen Anker dabei über jeweils ein Drittel seiner Querschnitts- breite und über seine gesamte Länge. Aus den Breitseiten des Ankers sind zudem nebeneinander mehrere parallele Schlitze ausgespart, die sich allerdings nicht über die gesamte Länge des Ankers erstrecken sondern in einem Abstand zu den Stirnseiten des Ankers enden. Insgesamt ist die mechanische Stabi- lität des Ankers aber durch die Schlitze erheblich beein¬ trächtigt. Deshalb ist vorgesehen, die Stabilität des Ankers nach Einbringen der Schlitze durch Füllen derselben mit Iso- liermateπal wieder zu erhöhen. Gerade weil diese Schlitze aus technischen Gründen möglichst eng sein sollen, ist das Auffüllen der Schlitze technisch aber entsprechend schwierig und verteuert die Herstellung des Ankers erheblich. Um der stärkeren Remanenz des Ankers zu begegnen, sollen die Übergänge zwischen der Kontaktfläche des Ankers und den Joch- blechen bedarfsgerecht angepasst werden können. Eine Vermin¬ derung der Kontaktfläche führt zwar zu einem verbesserten Ansprechverhalten im Sinne einer kürzeren Schaltzeit, muss je¬ doch mit dem Nachteil einer reduzierten Haftkraft des Ankers erkauft werden. Da eine zu geringe Haftkraft des Ankers sich jedoch nachteilig auf die Betriebssicherheit des magnetischen Antriebssystems auswirkt, wird das bekannte Antriebssystem den konstruktiven Anforderungen bei vielen Anwendungsfällen nicht gerecht werden können.Such a bipolar drive system is z. B. from DE 197 09 089 Al already known. The anchor here consists of a solid magnetic iron material, which makes it cheaper to manufacture than an assembled from layered electrical sheets anchor and often will have a greater long-term stability. For the massive anchor itself has the disadvantage that compared to anchors made of layered electrical steel more eddy current losses occur and a stronger remanence is present, which makes it difficult, inter alia, the release of the switching contacts when switching. In order to reduce the vortex ¬ power losses, the armature is provided with elongated hollow channels, which consist of narrow slots and extend in the feed direction of the armature and thus in the direction of the magnetic field lines. The slits provided on the narrow sides of the anchor weaken the parallelepiped-shaped armature over a third of its cross-sectional width and over its entire length. From the broad sides of the anchor next to each other several parallel slots are recessed, which do not extend over the entire length of the armature but end at a distance to the end faces of the armature. Overall, the mechanical Stability is formality of the armature but through the slots significantly impressive ¬ adversely. Therefore, it is provided to increase the stability of the armature after introducing the slots by filling them with insulating material again. Precisely because these slots should be as tight as possible for technical reasons, that is Filling the slots technically but correspondingly difficult and significantly increases the cost of making the anchor. In order to counteract the stronger remanence of the armature, the transitions between the contact surface of the armature and the yoke laminations should be able to be adapted as needed. Although a Vermin ¬ alteration of the contact surface resulting in an improved response in terms of a shorter switching time must be selected according ¬ but are connected to the disadvantage of a reduced adhesive power of the anchor. Since too low adhesive force of the armature, however, adversely affects the reliability of the magnetic drive system, the known drive system can not meet the design requirements in many applications.
Der Erfindung liegt daher die Aufgabe zugrunde, ein magneti¬ sches Antriebssystem der im Oberbegriff von Anspruch 1 angegebenen Art dahingehend weiterzuentwickeln, dass die Stabili¬ tät des Ankers durch dessen Gestaltung zur Reduzierung der Wirbelstromverluste nicht übermäßig reduziert ist.The invention is therefore based on the object to further develop a magneti ¬ ULTRASONIC drive system of the type specified in the preamble of claim 1 in that the Stabili ¬ ty of the armature is not excessively reduced by the design of which to reduce the eddy current losses.
Diese Aufgabe wird durch die Merkmale von Patentanspruch 1 gelöst .This object is solved by the features of claim 1.
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der abhängigen Ansprüche.Advantageous embodiments of the invention are the subject of the dependent claims.
Das erfindungsgemäße magnetische Antriebssystem für eine Schalteinrichtung umfasst ein Magnetjoch, in dem ein massiver Anker aus magnetischem Werkstoff zwischen zwei entgegen ge- setzten Endlagen linear schiebegeführt ist, und wenigstens einen Permanentmagneten zur Erzeugung eines magnetischen Flusses in dem Magnetjoch und wenigstens eine Spule, durch die der Anker zwischen seinen Endlagen hin- und her bewegbar ist, wobei der Anker zur Vermeidung von Wirbelstromverlusten mit länglichen Kanälen versehen ist und die Kanäle im Anker an ihrem Umfang umlaufend geschlossen sind.The magnetic drive system according to the invention for a switching device comprises a magnetic yoke, in which a solid armature of magnetic material is linearly slid between two opposite end positions, and at least one permanent magnet for generating a magnetic flux in the magnetic yoke and at least one coil, through which Anchor between its end positions back and forth is movable, the armature to avoid eddy current losses is provided with elongated channels and the channels are circumferentially closed in the anchor at its periphery.
Durch die Anordnung von umlaufend geschlossenen Kanälen (Hohlkanälen) im Anker wird auf einfache Weise erreicht, dass die Stabilität des Ankers kaum beeinträchtigt wird. Somit kann das technisch aufwändige Füllen der Kanäle entfallen.The arrangement of circumferentially closed channels (hollow channels) in the anchor is achieved in a simple manner that the stability of the armature is hardly affected. Thus, the technically complex filling of the channels can be omitted.
Vorzugsweise bestehen die in den Anker eingebrachten Kanäle aus Bohrungen mit relativ geringem Hohlquerschnitt. Solche Bohrungen müssen nicht zwingend kreisrund sein, sondern können auch z. B. einen ovalen Querschnitt aufweisen. Möglichst sollte der Hohlquerschnitt aber so gestaltet sein, dass an der den Hohlquerschnitt begrenzende Umfangswand keine scharfen Ecken vorhanden sind.Preferably, the introduced into the anchor channels consist of holes with a relatively small hollow cross-section. Such holes do not necessarily have to be circular, but can also z. B. have an oval cross-section. If possible, however, the hollow cross-section should be designed so that there are no sharp corners on the peripheral wall delimiting the hollow cross-section.
Bei nachträglich in den Ankerblock eingebrachten Bohrungen ist es aber vorteilhaft, wenn die Bohrungen kreisrund sind, weil sie sich dann kostengünstig mit Drillbohrern erzeugen lassen.In subsequently introduced into the anchor block holes, it is advantageous if the holes are circular, because they can then be produced inexpensively with drill drills.
Vor der technischen Wirkung her und auch fertigungstechnisch ist es günstig, wenn die Bohrungen im Anker gerade Durch¬ gangsbohrungen sind. Alternativ können die Bohrungen als Sacklochbohrungen ausgebildet sein, die von beiden Seitenflächen aus gebohrt werden.Before the technical effect forth and also manufacturing technology, it is advantageous if the holes in the anchor are straight through ¬ holes. Alternatively, the holes may be formed as blind holes, which are drilled from both side surfaces.
Die technische Wirkung eines Spalts im Hinblick auf die Redu¬ zierung der Wirbelstromverluste lässt sich näherungsweise er- reichen, wenn mehrere Kanäle des Ankers mit geringem Abstand zu einer Lochreihe oder zu mehreren Lochreihen aneinandergereiht sind. Mehrere Lochreihen werden dabei zweckmäßig parallel zueinander jeweils entlang einer geraden Linie ausgerichtet . Besonders wirkungsvoll ist es, wenn die von den Ankerfüh¬ rungsstangen durchdrungenen Stirnseiten des Ankerblocks über mindestens eine Lochreihe oder mehrere, insbesondere zwei, drei oder vier parallele Lochreihen von Durchgangslöchern verbunden sind, die parallel zu den Breitseiten des Ankers nahe dem Loch der Ankerführungsstange verlaufen. Mittig zwi¬ schen diesen Lochreihen kann mindestens eine weitere Lochreihe oder mehrere, insbesondere zwei, drei oder vier Loch- reihen vorgesehen werden, die sich entlang der Mittellängsebene des Ankers zwischen dessen Schmalseiten erstreckt bzw. erstrecken .The technical effect of a gap with respect to the Redu ¬ cation of the eddy current losses can be enough if a plurality of channels of the armature are lined with a small distance from a row of holes or a plurality of rows of holes approximately ER. Several rows of holes are expediently aligned parallel to each other along a straight line. It is particularly effective if the penetrated by the Ankerfüh ¬ approximately rod end sides of the armature block at least one row of holes or more, especially two, three or four parallel rows of holes are connected by through-holes extending parallel to the broad sides of the armature near the hole of the armature guide rod. Zvi ¬ center rule can be provided rows of holes that at least one further row of holes or more, especially two, three or four rows of holes extending along the center longitudinal plane of the armature between its narrow sides or extend.
Eine weitere technische Verbesserung wird erzielt, wenn auch die Breitseiten des Ankerblocks über mehrere Reihen weitge¬ hend von Durchgangsbohrungen perforiert sind. Hier können neben der Querebene der Ankerführungsstange zwei Felder mit Bohrungsreihen angeordnet werden. Sind zwei Ankerführungs¬ stangen in entgegen gesetzten Sacklochbohrungen des Ankers befestigt, so kann ein zwischen den Sacklochenden verbleibender Ankerbereich mit Vollmateπal zusätzlich noch für eine zentrale Anordnung einer Durchgangsbohrung genutzt werden.A further technical improvement is achieved if the broad sides of the anchor block are perforated over a plurality of rows weitge ¬ term of through holes. Here, two fields with rows of holes can be arranged next to the transverse plane of the armature guide rod. Are two anchor guide ¬ rods mounted in opposite blind holes of the anchor, so a remaining between the blind hole ends anchor area can be used with Vollmateπal additionally for a central arrangement of a through bore.
Der in allen drei Raumrichtungen von Bohrungen durchsetzte Ankerblock sorgt neben der Reduzierung der Wirbelstromverluste auch bereits für eine deutliche Herabsetzung der Rema¬ nenzneigung. Die Verminderung der Remanenz wird nochmals grö¬ ßer, wenn auch die mit den Anschlagflächen des Ankers zusammenwirkenden Gegenflächen von jeweils einer oder von jeweils mehreren Lochreihen perforiert sind.The run up all three spatial directions of drilling anchor block provides not only the reduction of eddy current losses already for a significant reduction of the Rema ¬ nenzneigung. The reduction of the remanence is again RESIZE ¬ SSER, though the cooperating with the abutment surfaces of the armature mating surfaces of each one or each plurality of rows of holes are perforated.
Das Magnetsystem hat insgesamt gegenüber dem bekannten System mit Schlitzen als Hohlkanäle den Vorteil, dass die Ausbildung von Wirbelströmen in allen drei Achsrichtungen behindert und somit reduziert wird. Die Betriebssicherheit bleibt dabei na¬ hezu ungeschmälert erhalten, da sich die Haftkraft bei glei¬ cher Gesamtinduktion nur unwesentlich reduziert und gleich¬ zeitig die Remanenzinduktion des Magnetkreises absinkt. Letzterer Effekt beruht im Wesentlichen darauf, dass die mag¬ netische Induktion im Anker lediglich lokal gezielt in den Sättigungsbereich hinein erhöht und dadurch die lokale Perme¬ abilität abgesenkt wird. Infolge der zahlreichen Kanäle im Anker ist zudem die Ankermasse geringer, so dass sich ins- gesamt eine geringere Remanenz verbunden mit verbesserten dynamischen Eigenschaften des Ankers bzw. des gesamten Magnet¬ systems ergibt.The magnet system has the advantage over the known system with slots as hollow channels that the formation of eddy currents in all three axial directions obstructed and thus reduced. The operational safety remains undiminished na ¬ hezu obtained since the adhesive force only slightly reduced during flexible ¬ cher total induction and equal ¬ time, the residual induction of the magnetic circuit decreases. The latter effect is essentially based on, is that the genetic like ¬ induction only locally increased selectively in the armature in the saturation region and thereby lowered into the local Perme ¬ ABILITY. As a result of the numerous channels in the anchor, the anchor mass is lower also, so that overall a lower remanence associated with improved dynamic properties of the anchor or the entire magnetic ¬ system gives INS.
Weitere zweckmäßige Ausgestaltungen und Vorteile der Erfin- düng sind der nachfolgenden Beschreibung eines Ausführungs- beispiels unter Bezug auf die Figuren der Zeichnung zu ent¬ nehmen, wobei einander entsprechende Bauteile mit gleichen Bezugszeichen versehen sind.Fertil Further expedient configurations and advantages of the inventions of the following description of an exemplary embodiment with reference to the figures of the drawing to take ent ¬, wherein corresponding components are designated by like reference numerals.
In den Zeichnungen zeigen:In the drawings show:
Fig. 1 eine Tragstruktur eines magnetischen Antriebssystems in perspektivischer Schrägansicht,1 shows a support structure of a magnetic drive system in a perspective oblique view,
Fig. 2 einen Anker der Tragstruktur in perspektivischer Einzelansicht schräg von links,2 an anchor of the support structure in a perspective single view obliquely from the left,
Fig. 3 den Anker der Tragstruktur in perspektivischer Einzelansicht schräg von rechts,3 the anchor of the support structure in a perspective single view obliquely from the right,
Fig. 4 eine Frontalansicht einer Schmalseite des separaten Ankerblocks, Fig. 5 eine Frontalansicht einer Breitseite des separaten An¬ kerblocks,4 is a front view of a narrow side of the separate anchor block, 5 is a front view of a broad side of the separate An ¬ notch block,
Fig. 6 einen Schnitt durch den Ankerblock gemäß der Schnitt- linie VI-VI in Fig. 5 und6 shows a section through the anchor block according to the section line VI-VI in Fig. 5 and
Fig. 7 eine Frontalansicht einer Stirnseite des separaten An¬ kerblocks .Fig. 7 is a front view of an end face of the separate An ¬ notch block.
In Figur 1 ist eine tragende Struktur 1 eines nicht in der Gesamtheit dargestellten permanentmagnetischen Antriebs¬ systems zur Betätigung einer Schalteinrichtung zu sehen. Diese Struktur 1 umfasst einen quaderförmigen Rahmen, der aus zwei Magnetjochen 2 und 3 unter Zwischenfügung von zwei La- gerplatten 4 und 5 zusammengesetzt ist. Beide Magnet joche 2 und 3 sind spiegelsymmetπsch gestaltet und besitzen an den beiden Enden jeweils um 90 Grad abgewinkelte Jochschenkel, so dass sie hinsichtlich ihrer Grundform etwa U-förmig gestaltet sind. Die planen Endflächen der gegeneinander gerichteten Jochschenkel der Magnetjoche 2 und 3 liegen oben flächig an der zugewandten Seitenfläche der Lagerplatte 4 und unten an der zugewandten Seitenfläche der Lagerplatte 5 an, wobei die korrespondierenden Jochschenkel über die Lagerplatten 4 bzw. 5 miteinander verbunden sind. Im Mittelbereich zwischen den Jochschenkeln ragt von den Magnetjochen 2 und 3 jeweils ein vorspringender Polschenkel ab, wobei die einander gegenüber¬ liegenden Polschenkel entsprechend den Jochschenkeln gegen¬ einander gerichtet sind. Auf den einander mit Abstand ge¬ genüberliegenden Enden der Polschenkel sind plattenförmige Permanentmagnete 6 bzw. 7 befestigt.In Figure 1 is shown a supporting structure 1 of a not shown in the whole permanent magnetic drive ¬ system for actuating a switching device. This structure 1 comprises a cuboidal frame, which is composed of two magnetic yokes 2 and 3 with the interposition of two bearing plates 4 and 5. Both magnet yokes 2 and 3 are designed mirror symmetry and have at both ends in each case angled by 90 degrees yoke legs, so that they are designed approximately U-shaped with respect to their basic shape. The flat end surfaces of the oppositely directed yoke legs of the magnetic yokes 2 and 3 lie flat against the facing side surface of the bearing plate 4 and at the bottom of the facing side surface of the bearing plate 5, wherein the corresponding yoke legs are connected to each other via the bearing plates 4 and 5 respectively. In the middle region between the yoke legs protrudes from the magnetic yokes 2 and 3 each from a projecting pole leg, wherein the mutually ¬ opposite pole legs are directed according to the yoke legs against ¬ each other. On the mutually spaced ends of the pole legs ge ¬ genüberliegenden plate-shaped permanent magnets are fixed 6 and 7 respectively.
Zwischen den planparallelen Permanentmagneten 6 und 7 liegt mit geringem Abstand zu diesen ein quaderförmiger Anker 8 im Jochrahmen, der in der gezeichneten Position an der Lager- platte 5 aufliegt. Der Anker 8 umfasst auch zwei Ankerfüh¬ rungsstangen 9 die mittig von der Oberseite bzw. der Unterseite des Ankerblocks abstehen und geometrisch koaxial zuein¬ ander angeordnet sind. Die Ankerführungsstangen 9 durchsetzen eine Lagerbohrung 10 in der ihnen zugeordneten Lagerplatte 4 bzw. 5 mit wenig Umfangsspiel und stehen mit einem Endbereich aus der Lagerbohrung 10 ihrer Lagerplatte 4 bzw. 5 heraus, so dass der Anker 8 mittels der Führungsstangen 9 vertikal linear schiebegeführt ist. Der Jochrahmen wäre im Zusammenbau noch mit zwei Spulen den Polschenkeln und den Jochschenkeln versehen, durch deren Magnetfeld der Anker 8 bei entsprechen¬ der Polrichtung nach Überwindung seiner Anhaftung an der Lagerplatte 5 in seine obere Endlage verschoben würde, in der sein Vorschub durch Anschlagen an der Unterseite der Lager- platte 4 begrenzt würde. Nach Umkehrung der Polrichtung des Magnetfeldes würde er nach Überwindung der Anhaftung durch Magnetkräfte wieder nach unten in die gezeigte Endlage auf die Lagerplatte 5 niedergedrückt und in der Anlagestellung gehalten. Die Wirkungsweise solcher Magnetantriebe ist als solche bekannt, so dass hier auf weitergehende Erläuterungen verzichtet wird.Between the plane-parallel permanent magnets 6 and 7 is at a small distance to these a cuboid anchor 8 in the yoke frame, which in the position shown on the bearing plate 5 rests. The armature 8 also comprises two Ankerfüh ¬ approximately rods 9 which project centrally from the top or the bottom of the anchor block and are arranged geometrically coaxial zuein ¬ other. The armature guide rods 9 pass through a bearing bore 10 in their associated bearing plate 4 and 5 with little circumferential clearance and stand out with an end portion of the bearing bore 10 of their bearing plate 4 and 5, so that the armature 8 is vertically linearly slidably guided by the guide rods 9. The yoke frame would be in the assembly still provided with two coils Polschenkeln and yoke legs, by the magnetic field of the armature 8 would be shifted at corresponding ¬ Polrichtung after overcoming its adhesion to the bearing plate 5 in its upper end position in which its feed by striking the Bottom of the bearing plate 4 would be limited. After reversal of the polarity of the magnetic field he would be depressed after overcoming the adhesion by magnetic forces back down to the end position shown on the bearing plate 5 and held in the contact position. The mode of action of such magnetic drives is known as such, so that no further explanation is provided here.
Die Magnetjoche 2 und 3 bestehen hier aus einer Vielzahl dün¬ ner Jochbleche, die zu dem gezeigten, dicken Jochblechstapel gefügt sind. Demgegenüber bestehen der Anker 8 sowie die Lagerplatten 4 und 5 aus Blöcken ferromagnetischen Materials bekannter Art, insbesondere aus einer entsprechenden Eisenle¬ gierung .The magnetic yokes 2 and 3 consist here of a plurality of thin ¬ ner yoke plates, which are joined to the shown thick Jochblechstapel. In contrast, the armature 8 and the bearing plates 4 and 5 consist of blocks of ferromagnetic material of known type, in particular of a corresponding Eisenle ¬ government.
Zur Reduzierung der Wirbelstromverluste und der Remanenz des Ankers 8 sowie der Lagerplatten 4 und 5 sind in den massiven Block des Ankers 8 eine Vielzahl von Kanälen (Hohlkanälen) 11, 12 und 13 integriert, die hier einen übereinstimmenden Durchmesser von 2 mm bis 3 mm aufweisen, alle als Durch- gangsbohrungen ausgebildet sind und sich nur hinsichtlich ihrer Länge unterscheiden, da sie den Block des Ankers 8 in unterschiedlichen Richtungen durchsetzen. Die Kanäle 11, 12 und 13 können alternativ auch als Sacklochbohrungen ausge- bildet sein, die von beiden Seitenflächen aus gebohrt werden.To reduce the eddy current losses and the remanence of the armature 8 and the bearing plates 4 and 5, a plurality of channels (hollow channels) 11, 12 and 13 are integrated in the solid block of the armature 8, which here have a matching diameter of 2 mm to 3 mm , all as through are trained bores and differ only in their length, since they enforce the block of the armature 8 in different directions. The channels 11, 12 and 13 may alternatively be formed as blind holes, which are drilled from both side surfaces.
Wie in Verbindung mit den Figuren 2 und 3 deutlicher zu er¬ kennen ist, gehen die Kanäle 11 von der oberen Stirnseite des Ankers 8 aus, verlaufen parallel zur Mittellängsachse der Ankerführungstangen 9 und somit rechtwinklig zur planenAs is clearer in connection with FIGS . 2 and 3, the channels 11 extend from the upper end face of the armature 8, run parallel to the central longitudinal axis of the armature guide rods 9 and thus at right angles to the plan
Stirnseite bis sie auf der gegenüberliegenden Stirnseite mün¬ den. Dabei sind zwei Reihen mit jeweils sechs Kanälen 11 vorhanden, wobei die Kanäle 11 in jeder der beiden Reihen jeweils einen Abstand von ca. 4 mm zum benachbarten Kanal 11 aufweisen. Diese Reihen verlaufen parallel zu den langen Seitenkanten der Stirnseiten und auf entgegen gesetzten Seiten einer mittig in auf der Stirnseite angeordnete Sacklochbohrung 14 mit Innengewinde, in welche die Ankerführungsstange 9 hineingedreht ist. Quer zu diesen Kanälen 11 sind die Kanäle 12 angeordnet, die von einer Schmalseite des Ankers 8 ausgehen und auf der gegenüberliegenden Schmalseite des Ankers 8 münden. Diese insgesamt fünf Kanäle 12 bilden eine gerade Reihe, die mittig zwischen den langen Seitenkanten der Schmalseite angeordnet ist, wie in Verbindung mit Figur 4 zweifelsfrei zu sehen ist. Diese Kanäle 12 verlaufen dadurch aber auch mittig zwischen den beiden Reihen mit den Kanälen 11 und durchdringen auch die Anordnungsebene der Ankerführungsstangen 9. Falls keine Schwächung der Bohrungswand der Sacklochbohrungen 14 erfolgen soll, können die Kanäle 12 deshalb alternativ auch alsFront side until you on the opposite front Mün ¬ den. In this case, two rows, each with six channels 11 are present, wherein the channels 11 in each of the two rows each have a distance of about 4 mm to the adjacent channel 11. These rows extend parallel to the long side edges of the end faces and on opposite sides of a centrally located on the front side blind hole bore 14 with internal thread, in which the armature guide rod 9 is screwed. Transverse to these channels 11, the channels 12 are arranged, which emanate from a narrow side of the armature 8 and open on the opposite narrow side of the armature 8. These total of five channels 12 form a straight row, which is arranged centrally between the long side edges of the narrow side, as can be seen beyond doubt in connection with Figure 4. However, these channels 12 thereby also run centrally between the two rows with the channels 11 and also penetrate the assembly plane of the armature guide rods 9. If no weakening of the bore wall of the blind holes 14 should take place, the channels 12 can therefore alternatively also as
Sacklochbohrungen ausgebildet sein und in einem Abstand vor der Sacklochbohrung 14 enden. Solche Sacklochbohrungen als Kanäle 12 sollten dann möglichst im gleichen Abstand von der Sacklochbohrung 14 enden wie der seitliche Abstand der Kanäle 11 auf der Stirnseite des Ankers 8. Dieser Abstand ist in der frontalen Draufsicht gemäß Figur 7 gut zu erkennen. In diesem Fall müssten die Kanäle 12 aber von den entgegen gesetzten Stirnseiten aus gebohrt werden, was einen entsprechenden Mehraufwand bei der Herstellung des Ankers 8 zur Folge hätte.Be formed blind holes and ends at a distance in front of the blind hole 14. Such blind holes as channels 12 should then end as possible at the same distance from the blind hole 14 as the lateral distance of the channels 11 on the front side of the armature 8. This distance is clearly visible in the frontal plan view according to FIG. In this case, however, the channels 12 would have to be drilled from the opposite end sides, which would result in a corresponding additional expenditure in the production of the armature 8.
Ebenfalls quer zu den Kanälen 11 und in erheblich größerer Anzahl sind die Kanäle 13 eingebracht, die sich alle rechtwinklig zur Längsmittelebene des Ankers 8 erstrecken. Dabei gehen die Kanäle 13 von einer Breitseite des Ankers 8 aus und münden in die gegenüberliegende Breitseite ein. Das Lochbild auf der Breitseite umfasst dabei zwei rechteckige Lochfelder, die aus drei parallelen Reihen mit jeweils sechs Hohlkanälen 13 bestehen, wobei die Hohlkanäle 13 in der Reihe und seitlich einen übereinstimmenden Abstand voneinander auf¬ weisen. Diese Lochfelder liegen beidseitig eines Mittelbe¬ reichs des Ankers 8, in dem die Ankerführungsstangen 9 ange¬ ordnet sind.Also transversely to the channels 11 and in a considerably larger number, the channels 13 are introduced, all of which extend at right angles to the longitudinal center plane of the armature 8. The channels 13 go from one broad side of the armature 8 and open into the opposite broad side. The hole pattern on the broad side comprises two rectangular hole fields, which consist of three parallel rows, each with six hollow channels 13, wherein the hollow channels 13 in the row and laterally have a matching distance from each other on ¬ . These fields are located on both sides of a hole Mitt same ¬ realm of the armature 8, in which the armature guide rods 9 are attached ¬ arranged.
Zwischen den beiden Lochfeldern aus Hohlkanälen 13 ist zusätzlich zentral ein einzelner Kanal 13' angeordnet, der ebenfalls eine die Breitseiten verbindende Durchgangsbohrung bildet. Wie aus der Frontalansicht nach Figur 5 in Verbindung mit der Schnittdarstellung nach Figur 6 zu ersehen ist, pas- siert der Hohlkanal 13' hierbei einen Vollmateπalbereich des Ankerblocks, der zwischen den Enden der beiden Sacklochboh¬ rungen 14 verblieben ist. Somit wird die Stabilität des An¬ kers 8 durch den Kanal 13' nicht nennenswert beeinträchtigt.Between the two hole fields of hollow channels 13, a single channel 13 'is additionally centrally disposed, which also forms a connecting the broad sides through hole. As can be seen from the frontal view according to figure 5 in connection with the sectional view of Figure 6; suitable Siert the hollow channel 13 'in this case a Vollmateπalbereich of the anchor block which has been left between the ends of the two stanchions Sacklochboh ¬ fourteenth Thus, the stability of the An ¬ core 8 is not significantly affected by the channel 13 '.
Neben den Kanälen im Anker 8 befinden sich auch in denIn addition to the channels in the anchor 8 are also in the
Lagerplatten 4 und 5 Kanäle 15, die sich achsparallel zu den Kanälen 11 erstrecken. Von den Kanälen (Hohlkanälen) 15 sind zwei Reihen mit jeweils sechs Kanälen 15 vorhanden, die vorzugsweise kongruent zu den Kanälen 11 im Anker 8 ange¬ ordnet sind. Bearing plates 4 and 5 channels 15, which extend axially parallel to the channels 11. Of the channels (hollow channels) 15 two rows, each with six channels 15 are present, the preferably congruent to the channels 11 in the armature 8 are arranged ¬ .
Be zugs ze ichenl i steBe itelste ieste
1 Struktur1 structure
2 Magnet j och2 magnet j och
3 Magnet j och3 magnet j och
4 Lagerplatte4 bearing plate
5 Lagerplatte5 bearing plate
6 Permanentmagnet6 permanent magnet
7 Permanentmagnet7 permanent magnet
8 Anker8 anchors
9 AnkerführungsStangen9 anchor guide rods
10 Lagerbohrung10 bearing bore
11 Kanal (Hohlkanal) Anker11 channel (hollow channel) anchor
12 Kanal (Hohlkanal) Anker12 channel (hollow channel) anchor
13 Kanal (Hohlkanal) Anker13 channel (hollow channel) anchor
13' Kanal (Hohlkanal) Anker13 'channel (hollow channel) anchor
14 Sacklochbohrung14 blind hole
15 Kanal (Hohlkanal) Lagerplatte 15 channel (hollow channel) bearing plate

Claims

Patentansprüche claims
1. Magnetisches Antriebssystem für eine Schalteinrichtung mit einem Magnet joch (2, 3), in dem ein massiver Anker (8) aus magnetischem Werkstoff zwischen zwei entgegengesetzten1. A magnetic drive system for a switching device with a magnet yoke (2, 3), in which a solid armature (8) of magnetic material between two opposite
Endlagen linear schiebegeführt ist, mit wenigstens einem Per¬ manentmagneten (6, 7) zur Erzeugung eines magnetischen Flusses in dem Magnetjoch (2, 3) und mit wenigstens einer Spule, durch die der Anker (8) zwischen seinen Endlagen hin- und her bewegbar ist, wobei der Anker (8) zur Vermeidung von Wirbelstromverlusten mit länglichen Kanälen (11, 12, 13, 13') versehen ist, d a d u r c h g e k e n n z e i c h n e t, dass die Kanäle (11, 12, 13, 13') im Anker (8) an ihrem Umfang umlaufend geschlossen sind.End positions is linearly slidably guided, with at least one Per ¬ manentmagneten (6, 7) for generating a magnetic flux in the magnetic yoke (2, 3) and with at least one coil through which the armature (8) between its end positions reciprocally movable is, wherein the armature (8) to avoid eddy current losses with elongated channels (11, 12, 13, 13 ') is provided, characterized in that the channels (11, 12, 13, 13') in the armature (8) at its Circumference are closed all around.
2. Magnetisches Antriebssystem nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, dass die Kanäle (11, 12, 13, 13') des Ankers (8) aus Bohrungen bestehen.2. Magnetic drive system according to claim 1, characterized in that the channels (11, 12, 13, 13 ') of the armature (8) consist of bores.
3. Magnetisches Antriebssystem nach Anspruch 2, d a d u r c h g e k e n n z e i c h n e t, dass die Kanäle (11, 12, 13, 13') des Ankers (8) Durchgangsbohrungen oder Sacklochbohrungen sind.3. Magnetic drive system according to claim 2, characterized in that the channels (11, 12, 13, 13 ') of the armature (8) are through-holes or blind holes.
4. Magnetisches Antriebssystem nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, dass mehrere umlaufend geschlossene Kanäle (11, 12, 13, 15) des Antriebssystems zu einer Lochreihe aneinandergereiht sind.4. Magnetic drive system according to claim 1, characterized in that a plurality of peripherally closed channels (11, 12, 13, 15) of the drive system are lined up to form a row of holes.
5. Magnetisches Antriebssystem nach Anspruch 4, d a d u r c h g e k e n n z e i c h n e t, dass mehrere von Kanälen (11, 12, 13, 15) gebildete Lochreihen parallel zueinander verlaufen.5. Magnetic drive system according to claim 4, characterized in that a plurality of rows of channels (11, 12, 13, 15) formed rows of holes parallel to each other.
6. Magnetisches Antriebssystem nach Anspruch 5, d a d u r c h g e k e n n z e i c h n e t, dass die von Ankerführungsstangen (9) durchsetzten Stirnseiten des quaderförmigen Ankers (8) mit mindestens einer Lochreihe von Kanälen (11) versehen sind.6. Magnetic drive system according to claim 5, characterized in that the armature guide rods (9) interspersed end faces of the cuboid armature (8) are provided with at least one row of holes of channels (11).
7. Magnetisches Antriebssystem nach Anspruch 2, d a d u r c h g e k e n n z e i c h n e t, dass der Anker (8) quer zu seiner Vorschubrichtung von einer Kanalanordnung durchsetzt ist.7. Magnetic drive system according to claim 2, characterized in that the armature (8) is traversed transversely to its feed direction by a channel arrangement.
8. Magnetisches Antriebssystem nach Anspruch 7, d a d u r c h g e k e n n z e i c h n e t, dass die Kanalanordnung mindestens eine mittig entlang den Schmalseiten des Ankers (8) verlaufende Reihe von Kanälen (12) aufweist.8. Magnetic drive system according to claim 7, characterized in that the channel arrangement has at least one row of channels (12) running centrally along the narrow sides of the armature (8).
9. Magnetisches Antriebssystem nach Anspruch 7, d a d u r c h g e k e n n z e i c h n e t, dass die Kanalanordnung zwei seitlich auf den Breitseiten des Ankers (8) in einem Abstand voneinander angeordnete Lochfelder umfasst, die jeweils aus mehreren von Kanälen (13) gebildeten Lochreihen zusammengesetzt sind.9. Magnetic drive system according to claim 7, characterized in that the channel arrangement comprises two perforated panels arranged laterally on the broad sides of the armature (8) at a distance from one another, each being composed of a plurality of rows of holes formed by channels (13).
10. Magnetisches Antriebssystem nach Anspruch 7, d a d u r c h g e k e n n z e i c h n e t, dass die Breitseiten des Ankers (8) mittig über einen zentralen Kanal (13') miteinander verbunden sind, der zwischen Sacklochbohrungen (14) zur Aufnahme der Ankerführungsstangen (9) im Vollmaterial des Ankers (8) verläuft. 10. A magnetic drive system according to claim 7, characterized in that the broad sides of the armature (8) are interconnected centrally via a central channel (13 ') between blind holes (14) for receiving the armature guide rods (9) in the solid material of the armature (8 ) runs.
11. Magnetisches Antriebssystem nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, dass die mit den Anschlagflächen des Ankers (8) zusammenwirkenden Gegenflächen am Jochkreis mindestens eine Lochreihe mit Kanälen (15) aufweisen. 11. Magnetic drive system according to claim 1, characterized in that the mating surfaces cooperating with the abutment surfaces of the armature (8) have at least one row of holes with channels (15) on the yoke circle.
EP08760338.7A 2007-06-15 2008-06-02 Magnetic drive system for a switchgear Active EP2165347B1 (en)

Applications Claiming Priority (2)

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DE102007028203A DE102007028203B3 (en) 2007-06-15 2007-06-15 Magnetic drive system for a switching device
PCT/EP2008/056751 WO2008151959A1 (en) 2007-06-15 2008-06-02 Magnetic drive system for a switchgear

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EP (1) EP2165347B1 (en)
CN (1) CN101772820B (en)
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EP2704173A1 (en) * 2012-08-27 2014-03-05 ABB Technology AG Electromagnetic actuator for a medium voltage vacuum circuit breaker
WO2019038813A1 (en) * 2017-08-21 2019-02-28 三菱電機株式会社 Electromagnetic operating mechanism and circuit breaker
US10297376B2 (en) * 2017-09-25 2019-05-21 The United States Of America As Represented By The Administrator Of Nasa Bi-stable pin actuator
WO2019117649A1 (en) * 2017-12-14 2019-06-20 최태광 Magnetic force control device and magnetic body holding device using same
FR3084772B1 (en) 2018-08-01 2021-06-18 Schneider Electric Ind Sas ELECTROMAGNETIC ACTUATOR AND ELECTRICAL SWITCHING APPARATUS INCLUDING THIS ACTUATOR

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WO2008151959A1 (en) 2008-12-18
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