EP2165347A1 - Magnetisches antriebssystem für eine schalteinrichtung - Google Patents
Magnetisches antriebssystem für eine schalteinrichtungInfo
- 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
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
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007028203A DE102007028203B3 (de) | 2007-06-15 | 2007-06-15 | Magnetisches Antriebssystem für eine Schalteinrichtung |
PCT/EP2008/056751 WO2008151959A1 (de) | 2007-06-15 | 2008-06-02 | Magnetisches antriebssystem für eine schalteinrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2165347A1 true EP2165347A1 (de) | 2010-03-24 |
EP2165347B1 EP2165347B1 (de) | 2016-03-16 |
Family
ID=39718525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08760338.7A Active EP2165347B1 (de) | 2007-06-15 | 2008-06-02 | Magnetisches antriebssystem für eine schalteinrichtung |
Country Status (7)
Country | Link |
---|---|
US (1) | US20100176902A1 (de) |
EP (1) | EP2165347B1 (de) |
CN (1) | CN101772820B (de) |
DE (1) | DE102007028203B3 (de) |
ES (1) | ES2569903T3 (de) |
MX (1) | MX2009013440A (de) |
WO (1) | WO2008151959A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2704173A1 (de) * | 2012-08-27 | 2014-03-05 | ABB Technology AG | Elektromagnetischer Aktuator für einen Mittelspannungs-Vakuum-Schutzschalter |
CN111033669B (zh) * | 2017-08-21 | 2021-11-09 | 三菱电机株式会社 | 电磁操作机构及断路器 |
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 (ko) * | 2017-12-14 | 2019-06-20 | 최태광 | 자기력 제어 장치 및 이를 이용한 자성체 홀딩 장치 |
FR3084772B1 (fr) * | 2018-08-01 | 2021-06-18 | Schneider Electric Ind Sas | Actionneur electromagnetique et appareil de commutation electrique comportant cet actionneur |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2021659C3 (de) * | 1970-05-02 | 1974-10-03 | Siemens Ag | Aus Blechen zusammengesetzter Magnetkern |
DE3332093A1 (de) * | 1983-09-02 | 1985-03-21 | Siemens AG, 1000 Berlin und 8000 München | Schaltstueck fuer eine vakuumschaltroehre |
JPS61164456A (ja) * | 1985-01-11 | 1986-07-25 | Diesel Kiki Co Ltd | 電磁アクチユエ−タ |
US5207410A (en) * | 1992-06-03 | 1993-05-04 | Siemens Automotive L.P. | Means for improving the opening response of a solenoid operated fuel valve |
DE19709089A1 (de) * | 1997-03-06 | 1998-09-10 | Abb Patent Gmbh | Permanentmagnetischer Antrieb für einen Schalter |
DE29706491U1 (de) * | 1997-04-11 | 1998-08-06 | Fev Motorentech Gmbh & Co Kg | Elektromagnetischer Aktuator mit wirbelstromarmem Anker |
WO2001046968A1 (en) * | 1999-12-21 | 2001-06-28 | Bergstrom Gary E | Flat lamination solenoid |
DE10319285B3 (de) * | 2003-04-29 | 2004-09-23 | Compact Dynamics Gmbh | Brennstoff-Einspritzventil für Brennkraftmaschinen |
DE102005026415A1 (de) * | 2005-06-03 | 2006-12-07 | Siemens Ag | Elektromagnetische Antriebseinrichtung |
-
2007
- 2007-06-15 DE DE102007028203A patent/DE102007028203B3/de not_active Expired - Fee Related
-
2008
- 2008-06-02 WO PCT/EP2008/056751 patent/WO2008151959A1/de active Application Filing
- 2008-06-02 EP EP08760338.7A patent/EP2165347B1/de active Active
- 2008-06-02 MX MX2009013440A patent/MX2009013440A/es active IP Right Grant
- 2008-06-02 CN CN200880101812.8A patent/CN101772820B/zh active Active
- 2008-06-02 ES ES08760338.7T patent/ES2569903T3/es active Active
- 2008-06-02 US US12/663,655 patent/US20100176902A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2008151959A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN101772820B (zh) | 2013-07-10 |
ES2569903T3 (es) | 2016-05-13 |
US20100176902A1 (en) | 2010-07-15 |
MX2009013440A (es) | 2010-01-27 |
EP2165347B1 (de) | 2016-03-16 |
CN101772820A (zh) | 2010-07-07 |
WO2008151959A1 (de) | 2008-12-18 |
DE102007028203B3 (de) | 2008-12-04 |
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