EP0883146B1 - Entraínement permanent-magnétique pour un commutateur - Google Patents

Entraínement permanent-magnétique pour un commutateur Download PDF

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Publication number
EP0883146B1
EP0883146B1 EP98102629A EP98102629A EP0883146B1 EP 0883146 B1 EP0883146 B1 EP 0883146B1 EP 98102629 A EP98102629 A EP 98102629A EP 98102629 A EP98102629 A EP 98102629A EP 0883146 B1 EP0883146 B1 EP 0883146B1
Authority
EP
European Patent Office
Prior art keywords
armature
drive according
yoke
slots
spacer
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.)
Expired - Lifetime
Application number
EP98102629A
Other languages
German (de)
English (en)
Other versions
EP0883146B2 (fr
EP0883146A2 (fr
EP0883146A3 (fr
Inventor
Edgar Dr.Rer.Nat. Dullni
Christian Dr.-Ing. Reuber
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.)
ABB AG Germany
Original Assignee
ABB Patent 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
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Application filed by ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0883146A2 publication Critical patent/EP0883146A2/fr
Publication of EP0883146A3 publication Critical patent/EP0883146A3/fr
Application granted granted Critical
Publication of EP0883146B1 publication Critical patent/EP0883146B1/fr
Publication of EP0883146B2 publication Critical patent/EP0883146B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6662—Operating arrangements using bistable electromagnetic actuators, e.g. linear polarised electromagnetic 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
    • H01F7/081—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 permanent magnetic drive according to the preamble of claim 1.
  • Such a drive has become known for example from DE 43 04 921 C.
  • the yoke or core is formed by two U-shaped yoke halves formed in which the anchor is guided longitudinally displaceable.
  • the anchor according to the DE 43 04 921 C is laminated.
  • the object of the invention is a permanent magnetic drive of the aforementioned Art to further improve, so that with improved efficiency, the production of the drive is simplified.
  • the anchor according to the invention made of solid material; he receives to avoid eddy currents Slits that run in the direction of movement and in particular in cuboid Anchor both on the broadside and on the narrow longitudinal side perpendicular to the respective Surface are introduced into the material. It is made of magnetic Reasons advantageous to make the slots as narrow as possible.
  • these slots could also be filled with insulating material be.
  • the slots can now open into the faces or even in front of the faces end up. This can be done alternately and there is also the possibility that at least one of the slots opens into one end face and in front of the other end face ends.
  • a particularly advantageous embodiment of the invention can the features of the claim 8 are taken.
  • the spacer have a broadening in the area of the bore, with one hole in each hole Bearing part can be used, which serve as the anchor guide rods Bolt is adapted.
  • the yoke plates which abut perpendicular to the spacer, in the area of broadening have other leg dimensions;
  • putties are inserted, which then, when the spacer Made of non-magnetic material, made of ferromagnetic material are. In this way it is achieved that the leg ends of the yoke plates all are the same length, so that a uniform Jochblechform can be used.
  • Another way of optimizing the tightening force is to anchor surfaces in the end regions adjacent to the yokes, in which according to claim 13 a stepped narrowing or according to claim 14, a gradual broadening is provided. In this way, the transition surface between the yoke plates can be varied to the anchor as needed.
  • Another way to optimize the tightening force is to use a ferromagnetic Use spacers with a stepped narrowing or broadening.
  • the yoke plates are according to a preferred embodiment of an iron low silicon content. This increases the saturation polarization and the same Jochquerites is usable for higher holding forces. Loss of magnetization in the are generally reduced by high silicon content, are hereby less Meaning, since it already sufficiently reduced by the lathed execution of the yoke are.
  • each yoke plate annularly closed from a manufacture single sheet metal part, whereby the intermediate pieces are eliminated.
  • Bolts or the armature guide rods are then guided in bushes that directly into the Cross webs, which run perpendicular to the direction of movement of the armature used are.
  • the individual sheets are layered, preferably together welded in the area of the transverse webs, and then the holes introduced, in which the bushings are used. The welding of the individual Sheets must then be made so that a hole can be made, without the sheets move against each other.
  • the permanent-magnetic drive 10 according to FIG. 1 has, as shown in FIG. 2 can be seen is a yoke 11, which is composed of two yoke parts 12 and 13. Both yokes 12 and 13 have a substantially U-shape with a Jochsteg 14 and two Yoke legs 15 and 16; the yoke legs 15 and 16 of the two opposite Joches 12 and 13 are directed against each other with the interposition of a Intermediate piece 17 and 18 placed against each other. Midway between the yoke legs 15 and 16 have the yokes 12 and 13 parallel to the legs 15 and 16 extending as Polschenkel serving projections 19 and 20.
  • the pole legs 19 and 20 are permanent magnets 21 and 22 attached and between the permanent magnets 21 and 22 is an anchor 23. Between the Leg 15 and the pole leg 19 or 15 and 20 and the pole leg 19 and the yoke legs 16 and the pole leg 20 and the yoke leg 16 is located each have a coil 24 and 25, with which the armature in the double arrow direction P movable is.
  • the armature 23 is composed of two anchor parts 26 and 27. At anchor part 26 are a first anchor guide rod 28 and on anchor part 27, a second armature guide rod 29 through holes 30 and 31, respectively in the intermediate pieces 17 and 18 reach through.
  • the armature 23 which is shown in Fig. 3 as shown in one piece, has a upper armature guide bar 28 and a lower armature guide bar 29. It is off a cuboid, solid material formed to avoid eddy currents provided with slots 32 and 33.
  • the slots 32 and 33 extend perpendicular from the narrow side surfaces 34 and 35 inwardly to the central axis, the are defined by the armature guide rods 28 and 29; the slots 33 extend perpendicular to the broad side 36 and 37, wherein the slots 32, the entire anchor line in Move through the direction of movement P, whereas the slots 33 at a distance from the side surfaces 38 and 39, where the armature guide rods 28 and 29 connect, end up; the slots 33 then do not interrupt the side surfaces 38 and 39.
  • the Slots 32 and 33 serve to reduce the eddy currents within the solid Material existing anchor.
  • FIGS. 4 and 5 show two different views, for example of the intermediate piece 17. It can be seen that the intermediate piece 17 in its center a bore 40th within which a bearing bush 41 is inserted, which is used to guide the Anchor guide rods 28 and 29 is used.
  • the intermediate piece 17 is elongated narrow and has in the region of the bore 40 on both sides a widening 42 and 43.
  • yoke plates 44 and 45 are two different types. Those yoke plates in the area of broadening 42 and 43 are shorter than the yoke plates 44.
  • the intermediate piece 17 may be made of non-magnetic material; then the spacers 48 to 51 are formed of ferromagnetic material.
  • the intermediate piece 17 is suitably dimensioned that the surface A a has mean value and the flux concentration B is quite large, then This can be done by changing the area A taking into account Saturation effects, the holding power can be optimized. Depending on the design of the entire Magnetic drive, it may happen that the optimum width of the intermediate piece narrower than the required width for the anchor guide. To this Purpose are then the widenings 42, 43, possibly with the intermediate layers 48 to 51 necessary.
  • the contact area or transition area A in that either the armature 60 is provided with a step 61 and 62 is, so that the end face 63 of the armature is smaller than the cross-sectional area of the remaining area, or there is the possibility of the end portions of the anchor 70 to be provided with spacers 71 and 72, so that the end face 73 of the armature larger than the rest of the cross section.
  • the slots may also be open in the end faces 38 and 39; as well the slots 32 terminate at a distance from de end faces.
  • the intermediate piece 17 may be made of ferromagnetic material.
  • the yoke 11 is shown in FIG. 2 composed of two yoke parts 12 and 13, the are approximately U-shaped and with the interposition of the spacers 17 and 18 pressed against each other.
  • the slots 32 open into the end faces 38 and 39, whereas the slots 33 terminate at a short distance in front of the end surfaces 38 and 39.
  • the slots 33 in the end faces 38 and 39th open and the slots 32 at a small distance from the end faces 38 and 39th to end.

Landscapes

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

Claims (16)

  1. Entraínement permanent-magnétique (10) pour un commutateur, notamment une chambre à vide, avec une culasse lamellée (11), dans laquelle un induit mobile (23) relié à la tige de contact mobile est guidé de manière coulissante, avec au moins un aimant permanent (21, 22) pour la génération d'un flux magnétique dans la culasse (11) et avec au moins une bobine (24, 25) qui déplace l'induit (23) d'une position dans une autre et inversement, caractérisé en ce que l'induit (23) composé d'un matériau massif est muni de fentes (32, 33) destinées à éviter les courants de Foucault.
  2. Entraínement permanent-magnétique selon la revendication 1, caractérisé en ce que les fentes (32, 33) s'étendent dans la direction du déplacement de l'induit (23).
  3. Entraínement selon la revendication 1 ou 2, l'induit ayant une forme parallélépipédique, caractérisé en ce que les fentes sont disposées sur les faces larges (36, 37) et sur les faces longitudinales étroites (34, 35), perpendiculairement à chacune de ces faces.
  4. Entraínement selon la revendication 3, caractérisé en ce que les fentes (32, 33) sont remplies de matériau isolant.
  5. Entraínement selon l'une des revendications précédentes, caractérisé en ce qu'au moins une fente (32) faisant partie au moins des fentes disposées sur les faces longitudinales étroites débouche dans les faces frontales (38, 39).
  6. Entraínement selon la revendication 5, caractérisé en ce que toutes les fentes (32, 33) débouchent dans les faces frontales.
  7. Entraínement selon l'une des revendications 1 à 5, caractérisé en ce que les fentes (32, 33) s'arrêtent avant les faces frontales.
  8. Entraínement selon l'une des revendications précédentes, caractérisé en ce qu'une entretoise (17, 41) est prévue pour faire office de palier pour le guidage de l'induit, à chaque fois entre les branches (15, 15', 16, 16'), qui se font face, des parties (12, 13), sensiblement en forme de U, de la culasse en acier, permettant de régler la surface de contact (A) entre la culasse et l'induit, et de ce fait la concentration du flux au niveau de la surface de transition, de sorte à permettre le réglage de la force de traction de l'induit selon la formule F ~ A x B2 F = effort de retenue
    A = surface de contact
    B = flux magnétique (champ).
  9. Entraínement selon la revendication 8, caractérisé en ce que l'entretoise (17, 41) comportant un perçage (40) pour le guidage de l'induit (41) présente un élargissement (42, 43) dans la zone du perçage.
  10. Entraínement selon l'une des revendications 8 et 9, caractérisé en ce que l'entretoise (17, 41) est réalisée dans un matériau non magnétique et en ce que des pièces de remplissage (48, 49, 50, 51) réalisées en un matériau ferromagnétique, dont l'épaisseur correspond au décrochement des élargissements, sont insérées entre les zones plus étroites (46, 47) et les extrémités des branches de la culasse (50) de l'entretoise.
  11. Entraínement selon l'une des revendications 1 à 9, caractérisé en ce que l'entretoise (17, 41) est réalisée dans un matériau ferromagnétique.
  12. Entraínement selon l'une des revendications 8 à 11 précédentes, caractérisé en ce qu'un élément coussinet (41) ajusté aux tiges de guidage de l'induit (28, 29) est inséré dans chaque perçage (40).
  13. Entraínement selon l'une des revendications précédentes, caractérisé en ce que l'induit (60) présente un rétrécissement en forme de gradin (61, 62) dans la zone de l'entretoise, de sorte que la surface (63) de l'induit faisant face aux branches de la culasse est plus étroite que la largeur du reste de l'induit.
  14. Entraínement selon l'une des revendications 1 à 12 précédentes, caractérisé en ce que la face (73) de l'induit (70) faisant face aux branches de la culasse est plus large que le reste de l'induit.
  15. Entraínement selon l'une des revendications précédentes, caractérisé en ce que les tôles de la culasse (44, 45) sont réalisées en acier à faible teneur en silicium.
  16. Entraínement selon l'une des revendications 1 à 4 et 15, caractérisé en ce que chaque tôle de la culasse est réalisée d'un seul tenant avec une forme annulaire fermée, et en ce que des coussinets pour les broches de guidage de l'induit sont insérés dans les lames de la culasse s'étendant perpendiculairement au déplacement de l'induit.
EP98102629A 1997-03-06 1998-02-16 Entraînement permanent-magnétique pour un commutateur Expired - Lifetime EP0883146B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19709089A DE19709089A1 (de) 1997-03-06 1997-03-06 Permanentmagnetischer Antrieb für einen Schalter
DE19709089 1997-03-06

Publications (4)

Publication Number Publication Date
EP0883146A2 EP0883146A2 (fr) 1998-12-09
EP0883146A3 EP0883146A3 (fr) 1999-05-19
EP0883146B1 true EP0883146B1 (fr) 2005-01-05
EP0883146B2 EP0883146B2 (fr) 2011-08-03

Family

ID=7822392

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98102629A Expired - Lifetime EP0883146B2 (fr) 1997-03-06 1998-02-16 Entraînement permanent-magnétique pour un commutateur

Country Status (2)

Country Link
EP (1) EP0883146B2 (fr)
DE (2) DE19709089A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001065581A1 (fr) * 2000-03-02 2001-09-07 Cruise, Rupert, John Commande magnétique
DE10011342A1 (de) * 2000-03-10 2001-09-13 Abb Patent Gmbh Permanent magnetischer Antrieb für ein elektrisches Schaltgerät
DE10146899A1 (de) * 2001-09-24 2003-04-10 Abb Patent Gmbh Elektromagnetischer Aktuator, insbesondere elektromagnetischer Antrieb für ein Schaltgerät
DE102007028203B3 (de) * 2007-06-15 2008-12-04 Siemens Ag Magnetisches Antriebssystem für eine Schalteinrichtung
DE102007041969C5 (de) * 2007-09-03 2010-09-30 Siemens Ag Magnetisches Antriebssystem für eine Schalteinrichtung
DE102007044245A1 (de) * 2007-09-11 2009-04-02 Siemens Ag Magnetisches Antriebssystem für eine Schalteinrichtung sowie Verfahren zur Herstellung eines magnetischen Antriebssystems
CN101430986B (zh) * 2008-11-21 2011-07-06 郑文秀 户外高压永磁式真空断路器
KR200451951Y1 (ko) * 2008-12-31 2011-01-25 엘에스산전 주식회사 적층 코어를 사용한 모노스테이블 영구자석형 액추에이터
CN107180728B (zh) 2016-03-11 2020-08-25 Abb瑞士股份有限公司 固封极柱及其组装方法
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 (11)

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GB551790A (en) † 1941-08-06 1943-03-10 Dunlop Rubber Co Improvements in or relating to electro magnets and solenoids and their operation
DE906251C (de) * 1950-07-04 1954-03-11 Philips Nv Aus einem einzigen Stueck hergestellter, mit einer Anzahl koerperlicher Pole versehener Koerper aus Dauermagnetstahl
DE1131336B (de) * 1953-11-16 1962-06-14 Philips Nv Anisotroper zylindrischer Dauermagnet-koerper
DE1824078U (de) * 1960-09-13 1960-12-29 August Pensky Fa Papierbahn.
GB8625724D0 (en) * 1986-10-28 1986-12-03 Ferranti Measurements Ltd Electric switching arrangement
US4876521A (en) * 1987-08-25 1989-10-24 Siemens Energy & Automation, Inc. Tripping coil with flux shifting coil and booster coil
GB8819166D0 (en) * 1988-08-12 1988-09-14 Ass Elect Ind Magnetic actuator & permanent magnet
US4891077A (en) * 1988-10-27 1990-01-02 Dana Corporation Method of making an electromagnetic coupling disc
DE4304921C1 (de) * 1993-02-18 1994-08-25 E I B S A Bistabiler magnetischer Antrieb für einen elektrischen Schalter
GB9318876D0 (en) † 1993-09-11 1993-10-27 Mckean Brian A bistable permanent magnet actuator for operation of circuit breakers
US5461205A (en) † 1994-03-07 1995-10-24 Eaton Corporation Electrode stem for axial magnetic field vacuum interrupters

Also Published As

Publication number Publication date
DE19709089A1 (de) 1998-09-10
EP0883146B2 (fr) 2011-08-03
EP0883146A2 (fr) 1998-12-09
EP0883146A3 (fr) 1999-05-19
DE59812462D1 (de) 2005-02-10

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