EP1006549B1 - Elektromechanisches Schaltgerät - Google Patents

Elektromechanisches Schaltgerät Download PDF

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Publication number
EP1006549B1
EP1006549B1 EP99402973A EP99402973A EP1006549B1 EP 1006549 B1 EP1006549 B1 EP 1006549B1 EP 99402973 A EP99402973 A EP 99402973A EP 99402973 A EP99402973 A EP 99402973A EP 1006549 B1 EP1006549 B1 EP 1006549B1
Authority
EP
European Patent Office
Prior art keywords
movable
armature
switching device
movable contact
holder
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
EP99402973A
Other languages
English (en)
French (fr)
Other versions
EP1006549A1 (de
Inventor
Patrick Comtois
Patrick Larcher
Alain Moreux
Régis Perrocheau
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 Industries SAS
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 Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP1006549A1 publication Critical patent/EP1006549A1/de
Application granted granted Critical
Publication of EP1006549B1 publication Critical patent/EP1006549B1/de
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
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/045—Details particular to contactors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/042—Different parts are assembled by insertion without extra mounting facilities like screws, in an isolated mounting part, e.g. stack mounting on a coil-support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H2050/046—Assembling parts of a relay by using snap mounting techniques
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H01H50/545—Self-contained, easily replaceable microswitches

Definitions

  • the present invention relates to an electromagnetic switch apparatus comprising a movable contact carrier equipped with a set of contact bridges cooperating with fixed contacts, and comprising an electromagnet constituted by a coil, a fixed armature and a movable armature, the movable armature of the electromagnet being associated with the contact carrier and ensuring the operation of the contact holder in translation to open or close the contacts.
  • Patent FR 2518308 discloses an electromagnetic switch device of the contactor type comprising an electromagnet operating in alternating current.
  • the contact carrier of the contactor has a lower cavity in which is housed the movable armature of the electromagnet, the fixation of the movable armature being carried out by means of a pin passing through the armature and introduced into the body of the contact holder on each side of the cavity.
  • the moving armature of the electromagnet is an E-shaped magnetic circuit, commonly used for an ac electromagnet, and the method of assembly to the contact carrier is therefore well suited.
  • this mode would be difficult to implement for a movable armature type pallet rather used for a DC electromagnet, the pallet is indeed too thin for the passage of such a pin.
  • US Patent 5281937 discloses an electromagnetic switch device of the contactor type comprising a movable armature of an electromagnet consisting of a flat pallet, whose shape is adapted so that it can be fixed to the movable contact carrier of the contactor, to using resilient snap tabs disposed on this contact holder. This method of attachment is however not directly adaptable to a mobile armature consisting of an E-shaped magnetic circuit.
  • the subject of the invention is therefore an electromagnetic switch apparatus in which the various types of mobile electromagnet armatures (in particular direct current or alternating current) can be assembled with the same mobile contact carrier, the association being advantageously performed quickly, thus greatly reducing the number of different parts necessary for the manufacture of a whole range of contactors.
  • the switch device comprises a movable contact carrier equipped with a set of contact bridges and comprises an electromagnet constituted by a coil, a fixed armature and a movable armature.
  • This mobile armature is assembled by snap-fitting to the movable contact carrier by assembly means adapted to allow both direct assembly and indirect assembly.
  • the assembly means comprise at least one resilient snap tab.
  • the assembly is direct when the moving armature of the electromagnet is a magnetic pallet comprising direct assembly means which consist of two lugs of the pallet which can be snapped into the elastic tabs of the movable contact carrier.
  • the assembly is indirect when the mobile armature of the electromagnet is for example a movable magnetic circuit comprising indirect assembly means which are constituted by an intermediate piece, secured to this magnetic circuit and snap in the elastic tabs of the movable contact holder.
  • the switch device 1 illustrated in FIG. 1 is an electromagnetic contactor comprising a plurality of double-break power poles.
  • Each power pole comprises a movable contact bridge 10 having contact pads 11 and 12 which cooperate with fixed contacts 13 and 14.
  • Each contact bridge 10 is mounted in a central receiving housing 21 provided in the body 20.
  • the movable contact bridges 10 are displaced by the translational movement of the movable contact carrier 2 which is actuated by means of an electromagnet 3.
  • the electromagnet 3 comprises a coil 31, a fixed armature 32 and a movable armature 30 of the diving type which is subjected to the pressure of a conical spring 37 mounted beneath it, the spring being expanded when said frame is in rest position.
  • the attraction of the movable armature 30 towards the fixed armature 32 causes the translational movement of the movable contact holder 2 so as to obtain the closure of the contacts.
  • the opening of the contacts is caused by the displacement of the movable armature 30 towards its rest position by means of the spring 37 which passes from a compressed position to a relaxed position.
  • the body 20 of the movable contact carrier 2 is extended by two lower parts 22 located on either side of the contact carrier 2 in the direction of the electromagnet 3.
  • the movable armature 30 of the electromagnet is fixed to the two lower parts 22 of the movable contact holder 2 by means of snap-type assembly means.
  • these assembly means are constituted by at least one resilient locking lug 23.
  • each lower portion 22 of the contact carrier 2 has a resilient snap-on lug 23 having each one a hooking notch 24 directed towards the inside of the body 20 as well as, under this hooking catch 24, an oblique internal side panel 24a.
  • Each notch 24 also has an upper rim 24b directed towards the body 20.
  • the moving armature 30 is an E-shaped laminated mobile magnetic circuit 33 comprising a core 35 having a longitudinal axis X, an orifice 34 of rectangular section pierced in the core 35 transversely to the longitudinal axis X and three branches 36 perpendicular to this core intended to be attracted by the fixed armature 32 during the passage of a current in the coil 31.
  • This type of mobile armature is generally used for an electromagnet alternating current.
  • the indirect assembly means of the mobile magnetic circuit 33 to the contact carrier 2 are constituted by an intermediate piece, such as a metal key 4, which is necessary since the dimensions of the mobile circuit 33 are not suitable for the spacing. resilient tabs 23.
  • This key 4 is of substantially parallelepipedal shape and has two ends 40 in the lengthwise direction. To secure it with the mobile circuit 33, it is inserted elastically into the hole 34 of the core 35. Once inserted, the key 4 has a longitudinal curvature that allows it to maintain a fixed position by leaning on the inner walls of the orifice 34. Finally, the key 4 has a sufficient length to be snap-fit between the two elastic tabs 23, and a small width and a small thickness, so that its two ends 40 can to stay inside the notches 24.
  • the movable armature 30 is a magnetic pallet 38 of substantially parallelepipedal shape, commonly used for a DC electromagnet, and which has a flat upper face 38b in the direction of the contact holder 2
  • the direct assembly means of the mobile magnetic pallet 38 to the contact carrier 2 are constituted by two lugs 38a located on opposite edges of the pallet 38, provided with a chamfer 38c and intended to be directly snapped into the elastic tabs 23 of the movable contact carrier 2.
  • an insulation flange 27 located below the central housings 21 and above the elastic tabs 23 makes it possible to partition the power poles with respect to the movable armature in order to prevent any damage to the armature. electromagnet during a break in the arc at the opening of the contacts.
  • positioning means 50 are provided on said flange. These means consist of at least two bosses 51 arranged on the lower face 27a of the flange 27. They are advantageously spaced apart by a distance equivalent to the width of the core 35 of the E-shaped mobile circuit 33 so as to cooperate with the edges of the soul so that it is positioned and fits between these two bosses.
  • the magnetic pallet 38 has such a thickness that when assembled with the contact holder 2, it can rest directly against the upper flanges 24b of the notches 24 and against the lower face 27a of the flange 27.
  • Means 52 complementary to the means 50 are present on the upper face 38b of the pallet 38. These complementary means 52 may consist of cavities which cooperate with the bosses 51 to position and wedge the pallet 38 against the isolation flange 27.
  • the mounting of the mobile armature of the electromagnet on the movable contact holder 2 is in the manner of a latching, as shown in Figures 6 and 7.
  • the movable armature 30, here the mobile circuit 33 in E shape is brought close to the lower portion 22 of the movable contact holder parallel to the lower face 27a of the flange 27, the key 4 being positioned along an axis Y passing through the two elastic tabs 23.
  • the ends 40 of the key 4 are then pressed against the oblique sides 24a of the elastic tabs 23, then by a pushing movement towards the flange along the arrow F, the elastic tabs 23 move outwardly from the body 20 of the movable contact carrier to allow inserting the ends 40 of the key in the notches 24.
  • the key 4 comprises, near its ends 40, two orifices 41 in which can come to rest a tool that will be used to exert the thrust movement necessary to snap the movable circuit.
  • the orifice 34 of rectangular section, has four internal walls, the upper inner wall 34b representing that being the closest to the isolation flange 27. At its two ends, the orifice 34 forms four edges at right angles to the core 35 of the magnetic circuit 33, the upper edge 34a corresponding to the edge formed by the upper inner wall 34b.
  • the key 4 exerts an elastic pressure on the upper inner wall 34b of the orifice 34 contributing to press the movable circuit 33 against the lower face 27a of the flange 27 of the contact carrier 2, between both bosses 51.
  • the longitudinal curvature of the key 4 allows it to not be in contact with the upper edges 34a of the orifice 34, which would cause premature wear of the key after a certain number of my parts of the electromagnet of the electromagnetic contactor.
  • the assembly proceeds identically when the movable armature of the electromagnet is a pallet 38.
  • the chamfers 38c of the two lugs 38a are pressed against the oblique faces 24a, then by a thrust movement of the vane 38 towards the flange along the arrow F, the elastic lugs 23 move outwardly from the body 20 of the door -contacts mobile to allow to insert the lugs 38a of the pallet in the notches 24 of the elastic tabs.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)

Claims (6)

  1. Elektromagnetisches Schaltgerät, umfassend eine mobile Kontaktleiste (2), die mit einer Einheit von Kontaktbrücken (10) versehen ist, die mobile Leistungskontakte (11, 12) tragen, die mit festen Kontakten (13, 14) zusammenwirken, und umfassend einen Elektromagneten (3), der mit einem mobilen Anker (30) versehen ist, der eine mobile Magnetschaltung (33) umfasst, die mit einem Längskern (35) versehen ist, wobei die mobile Kontaktleiste (2) zwei elastische Einraststücke (23) umfasst, die Mittel zur indirekten Montage (4, 40) aufnehmen können,
    dadurch gekennzeichnet, dass die Mittel zur indirekten Montage einen Keil (4) umfassen, der mit dem beweglichen Anker (30) durch elastisches Einsetzen in eine Öffnung (34) des Kerns (35) der mobilen Magnetschaltung (33) verbunden ist, wobei der Keil (4) zwei Enden (40), die in die elastischen Stücke (23) der mobilen Kontaktleiste (2) einrasten, und einen zentralen Teil umfasst, der auf einer Innenwand (34b) der Öffnung (34) aufliegt, um drei Abstützungspunkte zu bilden.
  2. Elektromagnetisches Schaltgerät nach Anspruch 1, dadurch gekennzeichnet, dass der Keil (4) eine Längskrümmung aufweist, die es ihm ermöglicht, einen elastischen Druck auszuüben, um zum Halten der mobilen Schaltung (33) gegen die mobile Kontaktleiste (2) beizutragen, wobei vermieden wird, dass sich der Keil (4) mit den oberen Kanten (34a) der Öffnung (34) in Kontakt befindet.
  3. Elektromagnetisches Schaltgerät nach Anspruch 1, dadurch gekennzeichnet, dass die mobile Kontaktleiste (2) zentrale Lagerungen (21), die die mobilen Kontaktbrücken (10) aufnehmen, und einen Isolierflansch (27) umfasst, der mit einer Unterseite (27a) versehen ist, wobei sich dieser Isolierflansch (27) zwischen den zentralen Lagerungen (21) und den elastischen Stücken (23) befindet, um einen Schutz des Elektromagneten (3) bei einer Öffnung der Kontakte zu gewährleisten.
  4. Elektromagnetisches Schaltgerät nach Anspruch 3, dadurch gekennzeichnet, dass der Isolierflansch (27) mit Positioniermitteln (50) auf seiner Unterseite (27a) versehen ist, um eine Verkeilung der mobilen Schaltung (33) am Flansch zu gewährleisten.
  5. Elektromagnetisches Schaltgerät nach Anspruch 4, dadurch gekennzeichnet, dass die Positioniermittel (50) von mindestens zwei Wülsten (51) auf der Unterseite (27a) des Isolierflansches (27) gebildet sind.
  6. Elektromagnetisches Schaltgerät nach Anspruch 4, dadurch gekennzeichnet, dass die Positioniermittel (50) um einen Abstand gleich der Breite des Kerns (35) der mobilen Schaltung (33) entfernt sind.
EP99402973A 1998-12-01 1999-11-29 Elektromechanisches Schaltgerät Expired - Lifetime EP1006549B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9815184 1998-12-01
FR9815184 1998-12-01

Publications (2)

Publication Number Publication Date
EP1006549A1 EP1006549A1 (de) 2000-06-07
EP1006549B1 true EP1006549B1 (de) 2006-11-02

Family

ID=9533469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99402973A Expired - Lifetime EP1006549B1 (de) 1998-12-01 1999-11-29 Elektromechanisches Schaltgerät

Country Status (6)

Country Link
US (1) US6239679B1 (de)
EP (1) EP1006549B1 (de)
DE (1) DE69933842T2 (de)
ES (1) ES2275333T3 (de)
UA (1) UA61989C2 (de)
ZA (1) ZA200003868B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3802998B2 (ja) * 1999-07-26 2006-08-02 株式会社東海理化電機製作所 ロータリスイッチ
JP5029731B2 (ja) * 2010-07-08 2012-09-19 富士電機機器制御株式会社 電磁接触器
KR102204849B1 (ko) * 2014-05-20 2021-01-18 후지 덴키 기기세이교 가부시끼가이샤 전자 접촉기
CN106128860B (zh) * 2016-07-24 2018-06-26 贵州天义电器有限责任公司 一种具有多路辅助触点的三相交流接触器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3824509A (en) * 1972-05-17 1974-07-16 Furnas Electric Co Magnetically operated electric switch device
DE7402795U (de) * 1974-01-28 1974-04-25 Bbc Ag Elektromagnetisches Schütz
US5281937A (en) * 1992-07-14 1994-01-25 Fasco Industries, Inc. Electromagnetic contactor and method for making same
FR2737603A1 (fr) * 1995-08-04 1997-02-07 Schneider Electric Sa Appareil contacteur
DE19648053C1 (de) * 1996-11-20 1998-03-12 Siemens Ag Elektromagnetisches Schaltgerät

Also Published As

Publication number Publication date
DE69933842D1 (de) 2006-12-14
ZA200003868B (en) 2001-06-01
US6239679B1 (en) 2001-05-29
EP1006549A1 (de) 2000-06-07
DE69933842T2 (de) 2007-03-01
UA61989C2 (en) 2003-12-15
ES2275333T3 (es) 2007-06-01

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