EP0827162A1 - Elektromagnet mit eingetauchtem Kern für zum Beispiel einen ferngesteuerten Schalter - Google Patents

Elektromagnet mit eingetauchtem Kern für zum Beispiel einen ferngesteuerten Schalter Download PDF

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Publication number
EP0827162A1
EP0827162A1 EP97410094A EP97410094A EP0827162A1 EP 0827162 A1 EP0827162 A1 EP 0827162A1 EP 97410094 A EP97410094 A EP 97410094A EP 97410094 A EP97410094 A EP 97410094A EP 0827162 A1 EP0827162 A1 EP 0827162A1
Authority
EP
European Patent Office
Prior art keywords
coil
electromagnet
electromagnet according
frame
carcass
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.)
Withdrawn
Application number
EP97410094A
Other languages
English (en)
French (fr)
Inventor
Joel Fagnoul
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric SE
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 Schneider Electric SE filed Critical Schneider Electric SE
Publication of EP0827162A1 publication Critical patent/EP0827162A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • 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

Definitions

  • the present invention relates to an electromagnet of the reluctant type with plunging core, in particular for a remote control switch or the like, this electromagnet comprising a coil activation mounted on a carcass provided with an axial guide tube in which is arranged a plunging core arranged to slide in this tube under the effect of forces electromagnetic induced by said coil when it is traversed by a current electric and an armature arranged to at least partially surround said coil and for channel the magnetic field generated by it.
  • electromagnets of this type used for example in remote control switches remotely control, in particular by telephone, several switches simultaneously, or in office machines, machine tools, automatic controls or setting, coin dispensers, etc.
  • These known electromagnets consist of different parts assembled according to a relatively complex process, requiring several manual or semi-automatic interventions, moreover expensive.
  • the frame magnetic and the coil carcass are made up of several parts assembled by crimping, which requires relatively expensive interventions.
  • this guy assembly does not offer all the guarantees of quality and safety required.
  • the movement of the core can be hampered by the armature and thus generates noise pollution. Of even the magnetic flux can be disturbed by cuts in the armature magnetic in particular at the junctions between different constituent parts.
  • the object of the present invention is to overcome these drawbacks by providing an electromagnet simple, efficient and reliable construction, requiring only standard tools or not tooling at all.
  • this embodiment is designed not to disturb the lines of magnetic field and to allow rapid sliding, unhindered and does not generate no noise pollution on contact with an obstacle placed in the path of the core plunging, during its displacement.
  • an electromagnet as defined in the preamble and characterized in that said coil carcass consists of at least two parallel support plates connected therebetween by said guide tube, and in that said armature comprises at least one housing consisting of two substantially symmetrical elements and arranged to fit on said carcass in a plane parallel to the magnetic field lines generated by the coil in this place, so as not to disturb the magnetic flux.
  • the support plates of said carcass comprise each a central opening whose shape and dimensions correspond to the shape and to the external dimensions of said guide tube, these support plates being mounted parallel to each other on said guide tube, so that a section of the latter protrudes the support plates on either side of the coil carcass.
  • Said support plates advantageously have a quadrangular section.
  • the guide tube may have a quadrangular section.
  • the plunging core also has a quadrangular section whose external dimensions are substantially equal to the internal dimensions of the guide tube, such that said plunging core slides with little play inside this tube.
  • the guide tube can also have a circular section.
  • the plunging core also has a circular section whose outside diameter is substantially equal to inner diameter of the guide tube, so that said plunging core slides with a small clearance inside this tube.
  • the two symmetrical elements which constitute the housing of said frame each comprise at least three walls arranged in a U, a rear wall and two side walls parallel to each other, the side walls each comprising a central clearance whose shape and dimensions correspond substantially to half the guide tube.
  • the clearances of the symmetrical elements have a shape quadrangular or a semi-circular shape.
  • the parallel walls of the symmetrical elements are arranged to cover, by substantially superimposing half of the support plates when said frame is mounted on said coil carcass.
  • the support plates include fixing means two symmetrical elements which constitute said housing of said frame.
  • these fixing means comprise at least two assembly members protuberances integral with the support plates, diametrically opposite and arranged for engage in suitable housing provided in the symmetrical elements forming the case of said frame.
  • the two symmetrical elements forming the housing of the frame is cut flat in a sheet of soft iron and folded in at least two parallel folding axes.
  • the two symmetrical elements forming the housing of the frame preferably have a space which separates them, this space being arranged in a median plane of symmetry of the electromagnet.
  • the carcass of the coil is made of a material electrically insulating and the two symmetrical elements forming the housing of said frame are electrically independent and have electrical connection terminals said coil.
  • the electromagnet shown 10 mainly comprises a coil casing 11 which supports a coil 12, a frame 13 and a plunging core 14.
  • the coil carcass consists of a guide tube 15 inside which is housed the plunging core 14 and two support plates 16 and 17, mutually parallel and mounted on the guide tube 15.
  • the frame 13 comprises a housing made of two symmetrical elements 13a and 13b which are arranged to fit onto said carcass 11 according to a plane of symmetry median M of the electromagnet.
  • the support plates 16 and 17 of the carcass 11 each have a central opening whose shape and dimensions correspond substantially to the shape and dimensions outside of the guide tube 15. In this way two end sections of the guide tube guide 15 are engaged in the central openings of the support plates 16 and 17, which are therefore mounted in a quick, efficient and stable manner, parallel to each other.
  • the coil 12 consists of a winding made on the guide tube 15 and delimited on the one hand and on the other by the support plates 16 and 17.
  • the guide tube 15 has a quadrangular cross section. he the same is true of the plunging core 14.
  • the dimensions of the latter are such that it can slide, practically without play, inside the guide tube 15. Therefore, no obstacle does not hinder its displacement induced by the electromagnetic forces generated by the coil 12 when powered by an electric current, so that the displacement of the core diving takes place without noise.
  • the moving part is attracted towards an equilibrium position in the middle of the electromagnet.
  • the housing which constitutes the frame 13 consists of two identical symmetrical elements 13a and 13b comprising three walls arranged in a U shape. These three walls comprise a rear wall 20 and two side walls 21 and 22.
  • the spacing of the side walls 21 and 22, parallel to each other, is substantially equal to or slightly greater than the spacing of the plates support 16 and 17.
  • the two side walls 21 and 22 each have a clearance 23 and 24, the dimensions of which correspond substantially to half the profile of the guide tube 15 in such a way that the symmetrical elements 13a and 13b can be mounted on the carcass 11 of the coil 12, as shown in FIG.
  • the two symmetrical elements 13a and 13b provide between them a space 25 which separates them, this space being arranged in a plane parallel to the magnetic field lines generated here by the coil. This plane corresponds to the median plane of symmetry M of the electromagnet.
  • FIGS. 3 and 4 illustrate an embodiment very close to that described above, but in which the plunging core 34 has a cylindrical shape and the guide tube 35 has a circular section, arranged so that the plunging core can slide inside this tube, practically without play.
  • the clearances 43 and 44 from the side walls 41 and 42 of the symmetrical elements 33a and 33b, which constitute the housing of the frame 33 of the electromagnet 30, have a semi-circular shape.
  • the other components of the electromagnet 30 are identical to those which correspond to them of the electromagnet 10.
  • the coil 32 is substantially identical to the coil 12
  • the parallel support plates of the carcass 31, designated by the references 36 and 37 are substantially identical to the support plates 16 and 17 of the electromagnet 10.
  • the central opening which allows the passage of the sections end of the guide tube 35 is circular and no longer quadrangular.
  • FIGS. 5 and 6 illustrate an alternative embodiment of the electromagnet described with reference to FIGS. 1 and 2.
  • the carcass 51 of this electromagnet 50 comprises two support plates 56 and 57 of the coil (not shown), which are equipped with means for fixing the two elements symmetrical 53a and 53b constituting the housing of the frame 53.
  • These fixing means are made up of protruding assembly members 60 arranged at the four angles of each of the support plates 56 and 57.
  • These protruding assembly members are arranged to engage in appropriate housings 61 provided in the two symmetrical elements 53a and 53b, at the corners of their rear wall.
  • the protruding assembly members 60 have a wedge shape and are designed to engage by wise clip in the corresponding housings. This method of assembly is particularly efficient and rapid. It is made possible by the elasticity of the support plates 56 and 57 which deform slightly when put in place symmetrical elements 53a and 53b of the frame housing.
  • FIG. 7 represents one of the electromagnets previously described, seen in plan.
  • the input and output terminals 70 and 71 respectively of the coil 12 are mounted directly on the two symmetrical elements 13a and 13b of the armature 13 of the electromagnet 10.
  • the two support plates 16 and 17 as well as the guide tube 15 must be made of an insulating material and the symmetrical elements 13a and 13b which constitute the housing of the frame 13 must be made in a way precise enough so that the space 25 between them is large enough to avoid a short circuit at the coil.
  • the two symmetrical elements which constitute the housing of the frame 13, 33 and 53 have three symmetrical U-shaped walls, a rear wall and two side walls parallel to each other.
  • the reinforcement could be more enveloping and have a rear wall and two pairs of parallel side walls two to two each of which is adjacent to one side of the rear wall.
  • the manufacturing of these elements could be substantially the same as that described above, namely by cutting of a sheet of sheet iron and folding the side walls around four axes of folding corresponding to the four sides of the rear wall.
  • the protruding assembly members 60 could have shapes different from those described. These members arranged at the four corners of the support plates could be replaced by two members arranged substantially in the middle of two opposite sides of said parallel support plates.
  • the plunging core could for example have a prismatic shape or else consist of a stack of several sheets.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
EP97410094A 1996-08-30 1997-08-27 Elektromagnet mit eingetauchtem Kern für zum Beispiel einen ferngesteuerten Schalter Withdrawn EP0827162A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9610798 1995-09-08
FR9610798A FR2752995B1 (fr) 1996-08-30 1996-08-30 Electroaimant a noyau plongeant utilise par exemple dans un telerupteur

Publications (1)

Publication Number Publication Date
EP0827162A1 true EP0827162A1 (de) 1998-03-04

Family

ID=9495432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97410094A Withdrawn EP0827162A1 (de) 1996-08-30 1997-08-27 Elektromagnet mit eingetauchtem Kern für zum Beispiel einen ferngesteuerten Schalter

Country Status (2)

Country Link
EP (1) EP0827162A1 (de)
FR (1) FR2752995B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001059798A1 (en) * 2000-02-11 2001-08-16 Bticino S.P.A. Automatic switch with actuating electromagnet for short circuits
WO2009018670A1 (de) * 2007-08-07 2009-02-12 Uster Technologies Ag Vorrichtung zum schneiden eines fadenförmigen körpers
WO2012006812A1 (zh) * 2010-07-15 2012-01-19 北京翠祥电器元件有限公司 小型塑料外壳式断路器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262027A (en) * 1964-04-06 1966-07-19 Automatic Switch Co Solenoid structure and mounting means therefor
US3943476A (en) * 1973-12-11 1976-03-09 Nippon Gakki Seizo Kabushiki Kaisha Plunger damping means for an electromagnetic solenoid
EP0204222A1 (de) * 1985-05-28 1986-12-10 Siemens Aktiengesellschaft Feststellvorrichtung für Feuerschutztüren
DE4209757C1 (en) * 1992-03-27 1993-03-11 Kloeckner-Moeller Gmbh, 5300 Bonn, De Operating magnet for EM switch, e.g. for motor protection - has two=part outer yoke fitted to coil carrier
DE4210740A1 (de) * 1992-04-01 1993-10-07 Licentia Gmbh Elektromagnet mit einem Hubanker
DE4312950A1 (de) * 1993-04-21 1994-10-27 Abb Patent Gmbh Magnetischer Auslöser für ein elektrisches Schaltgerät
DE19505798C1 (de) * 1995-02-17 1996-08-01 Robert Thalhammer Elektromagnet

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262027A (en) * 1964-04-06 1966-07-19 Automatic Switch Co Solenoid structure and mounting means therefor
US3943476A (en) * 1973-12-11 1976-03-09 Nippon Gakki Seizo Kabushiki Kaisha Plunger damping means for an electromagnetic solenoid
EP0204222A1 (de) * 1985-05-28 1986-12-10 Siemens Aktiengesellschaft Feststellvorrichtung für Feuerschutztüren
DE4209757C1 (en) * 1992-03-27 1993-03-11 Kloeckner-Moeller Gmbh, 5300 Bonn, De Operating magnet for EM switch, e.g. for motor protection - has two=part outer yoke fitted to coil carrier
DE4210740A1 (de) * 1992-04-01 1993-10-07 Licentia Gmbh Elektromagnet mit einem Hubanker
DE4312950A1 (de) * 1993-04-21 1994-10-27 Abb Patent Gmbh Magnetischer Auslöser für ein elektrisches Schaltgerät
DE19505798C1 (de) * 1995-02-17 1996-08-01 Robert Thalhammer Elektromagnet

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001059798A1 (en) * 2000-02-11 2001-08-16 Bticino S.P.A. Automatic switch with actuating electromagnet for short circuits
EP1130613A1 (de) * 2000-02-11 2001-09-05 Bticino S.P.A. Selbstschalter mit elektromagnetischer Betätigung bei Kurzschluss
WO2009018670A1 (de) * 2007-08-07 2009-02-12 Uster Technologies Ag Vorrichtung zum schneiden eines fadenförmigen körpers
CN101878172B (zh) * 2007-08-07 2013-06-19 乌斯特技术股份公司 一种用于切断线状物体的装置
WO2012006812A1 (zh) * 2010-07-15 2012-01-19 北京翠祥电器元件有限公司 小型塑料外壳式断路器
CN102339694A (zh) * 2010-07-15 2012-02-01 北京翠祥电器元件有限公司 小型塑料外壳式断路器
CN102339694B (zh) * 2010-07-15 2014-07-09 北京翠祥电器元件有限公司 小型塑料外壳式断路器

Also Published As

Publication number Publication date
FR2752995B1 (fr) 1998-10-02
FR2752995A1 (fr) 1998-03-06

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