EP0358051B1 - Appareil de commutation électromagnétique - Google Patents

Appareil de commutation électromagnétique Download PDF

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Publication number
EP0358051B1
EP0358051B1 EP89115583A EP89115583A EP0358051B1 EP 0358051 B1 EP0358051 B1 EP 0358051B1 EP 89115583 A EP89115583 A EP 89115583A EP 89115583 A EP89115583 A EP 89115583A EP 0358051 B1 EP0358051 B1 EP 0358051B1
Authority
EP
European Patent Office
Prior art keywords
contact
magnetic part
projections
armature
switching device
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
EP89115583A
Other languages
German (de)
English (en)
Other versions
EP0358051A3 (fr
EP0358051A2 (fr
Inventor
Georg Streich
Günter Gnahn
Kurt Held
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 EP0358051A2 publication Critical patent/EP0358051A2/fr
Publication of EP0358051A3 publication Critical patent/EP0358051A3/fr
Application granted granted Critical
Publication of EP0358051B1 publication Critical patent/EP0358051B1/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
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/645—Driving arrangements between movable part of magnetic circuit and contact intermediate part making a resilient or flexible connection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
    • H01H50/305—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature damping vibration due to functional movement of armature

Definitions

  • the invention relates to an electromagnetic switching device with a movable magnetic part guided in a housing, which is coupled to a contact bridge support and in which stops in the form of projections for the movable magnetic part are provided on the housing.
  • the armature is firmly connected via a plunger to the contact piece of a contact bridge which works as a make contact.
  • the armature return spring engages on the tappet.
  • a second armature, which interacts with the coil of the magnet system, is provided with pins on which springs are attached which press the armature against the housing in the rest position. Since both anchors go through a movement when the magnet system is switched on, the springs acting on the pins become contact pressure springs.
  • the aim of the construction shown here is to prevent bruises during the switch-on process, so that the stops on which the first anchor rests in the idle state do not make any contribution to freedom from bouncing, especially since only make contacts are provided.
  • the invention has for its object to improve the bounce freedom when switching off. Such bruises occur particularly when the stops of the movable magnetic part carrying the contact bridges are provided on the plastic contact bridge support, as is the case, for example, with the switching device according to DE-A-23 60 907.
  • the object of the invention is achieved in a simple manner in that the projections are unevenly high in the direction of movement of the movable magnetic part and can be passed through openings in the contact bridge carrier encompassing the movable magnetic part for engagement with the magnetic part are.
  • the frictional relationships between plastic and iron are exploited and, on the other hand, the successive energy dissipation due to the offset projections is used.
  • the contact set to be attached can be designed equally for AC and DC contactors - it is advantageous if the movable magnet part is the hinged armature of a DC magnet system for the switching device and the coupling between the armature and the contact bridge support takes place via a connecting arm which is penetrated by the cross bar, which bears with its free ends in recesses in the contact bridge support and that a leaf spring is present, the ends of which lie in front of the openings for the projections in the contact bridge support, the leaf spring being in the center abuts the crossbar and in the end regions on the edges of the openings. It is advantageous here if the cross bar is designed for the optional holding of a movable AC magnetic part.
  • the movable magnetic part 1 shown in the drawing, FIG. 1, is the armature of an AC magnet, which is connected to the plastic contact bridge support 2 via a crossbar 3 connected is.
  • the crossbar 3 penetrates the armature 1 and its ends are held in recesses in the contact bridge support 2.
  • the contact bridge support is - as shown in FIG 2 - trough-shaped, with a tower-like extension 4 for holding the contact bridges, not shown, which can make make and break contacts with the fixed contact parts, and has openings 5 through which projections 6 and 7 can protrude .
  • the projections 6 and 7 are integrally formed on the housing of the switching device, not shown, wherein, for example, the projection 6 is somewhat longer than the projection 7, so that it comes into contact with the armature 1 when the armature 1 is switched off. This state is shown in FIGS. 1 and 3. After further movement, the projection 7 comes into contact with the armature 1 even with a slight tilting movement, so that two successive stops are present. The restoring movement of the contact bridge support 2 takes place via compression springs, not shown, which engage the contact bridge support 2.
  • a hinged armature 8 is provided, which is connected via a connecting arm 9 to the pivot pin 10 via the crossbar 3 to the contact bridge carrier 2.
  • the cross bar 3 penetrates the connecting arm in an opening 11 and is held with the free ends in the same recesses in the contact bridge support as in the AC armature version.
  • a leaf spring 12 is provided, which is supported with its central part on the cross bar 3 and with the free ends 13 and 14 on edges 15 such that they are on the projections 6 and 7 in the openings 5 lie on.
  • the mode of operation of the projections 6 and 7 when the switching device is switched off is therefore in accordance with the embodiment according to FIG. 1.
  • the design according to the invention means that the upper part of the switching device can be used both for AC and for DC magnet systems.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Electromagnets (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Vehicle Body Suspensions (AREA)
  • Electronic Switches (AREA)
  • Burglar Alarm Systems (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Claims (3)

  1. Appareil de coupure électromagnétique comportant une pièce magnétique mobile, guidée dans un boîtier et qui est accouplée à un support de pont de contact et dans lequel sur le boîtier sont prévues des butées se présentant sous la forme d'appendices saillants pour la pièce magnétique mobile, caractérisé par le fait que les parties saillantes (6, 7) possèdent des hauteurs différentes dans le sens du déplacement de la pièce magnétique mobile (1) et peuvent traverser des ouvertures (5) du support (2) du pont de contact, qui entoure la pièce magnétique mobile (1), pour engrener avec cette pièce magnétique (1).
  2. Appareil de coupure suivant la revendication 1, caractérisé par le fait que la pièce magnétique mobile est l'armature battante (8) d'un système magnétique à courant continu sur l'appareil de coupure et l'accouplement entre l'armature (8) et le support (2) du pont de contact s'effectue au moyen d'un bras de liaison qui est traversé par un verrou transversal (3) dont l'extrémité libre s'applique dans des évidements du support (2) du pont de contact, et qu'il est prévu un ressort à lame (12), dont les extrémités (13, 14) sont situées devant les ouvertures (5) de passage des appendices saillants (6, 7), ménagées dans le support (2) du pont de contact, le ressort à lame (12) étant raccordé, en son centre, au verrou transversal (3) et, au niveau de ses parties d'extrémité, aux bords (15) des ouvertures (5).
  3. Appareil de coupure suivant la revendication 2, caractérisé par le fait que le verrou transversal (3) est réalisé pour retenir, aux choix, une pièce magnétique mobile à courant alternatif (1).
EP89115583A 1988-09-05 1989-08-23 Appareil de commutation électromagnétique Expired - Lifetime EP0358051B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8811207U DE8811207U1 (de) 1988-09-05 1988-09-05 Elektromagnetisches Schaltgerät
DE8811207U 1988-09-05

Publications (3)

Publication Number Publication Date
EP0358051A2 EP0358051A2 (fr) 1990-03-14
EP0358051A3 EP0358051A3 (fr) 1991-07-31
EP0358051B1 true EP0358051B1 (fr) 1994-11-02

Family

ID=6827579

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89115583A Expired - Lifetime EP0358051B1 (fr) 1988-09-05 1989-08-23 Appareil de commutation électromagnétique

Country Status (4)

Country Link
US (1) US5038124A (fr)
EP (1) EP0358051B1 (fr)
AT (1) ATE113753T1 (fr)
DE (2) DE8811207U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110037543A1 (en) * 2007-10-11 2011-02-17 Dale Walter Lange Electrical switching device
JP5776449B2 (ja) * 2011-08-30 2015-09-09 株式会社デンソー 電磁スイッチ
DE102018207468B3 (de) * 2018-05-15 2019-08-29 Siemens Aktiengesellschaft Schaltgerät mit einer reduzierten mechanischen Schlagbelastung bei Änderung des Betriebsmodus in den ausgeschalteten Zustand

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1151302B (de) * 1958-12-31 1963-07-11 Continental Elektro Ind Ag Elektromagnetisches Schuetz mit zwei gegenlaeufig bewegten Ankern
ES259619A1 (es) * 1959-07-17 1960-12-01 Normacen Sa Perfeccionamientos en contadores electromagneticos
DE2248029A1 (de) * 1972-09-29 1974-04-11 Siemens Ag Traeger fuer die beweglichen kontakte eines schaltgeraetes
GB1416652A (en) * 1973-04-26 1975-12-03 Siemens Ag Switching devices
DE2360907B2 (de) * 1973-12-06 1981-02-05 Siemens Ag, 1000 Berlin Und 8000 Muenchen Anordnung zur Halterung von Federn
DE3335731A1 (de) * 1983-10-01 1985-04-11 Brown, Boveri & Cie Ag, 6800 Mannheim Einrichtung zur rueckstellung des kontakttraegers eines elektromagnetischen schaltgeraetes, insbesondere eines schuetzes
DE3439788A1 (de) * 1984-10-31 1986-04-30 Brown, Boveri & Cie Ag, 6800 Mannheim Vorrichtung zur verbindung eines magnetankers eines elektromagnetischen schuetzes mit dem kontakttraeger
US4616202A (en) * 1984-11-20 1986-10-07 Mitsubishi Denki Kabushiki Kaisha Electromagnetic contactor

Also Published As

Publication number Publication date
EP0358051A3 (fr) 1991-07-31
US5038124A (en) 1991-08-06
ATE113753T1 (de) 1994-11-15
DE58908584D1 (de) 1994-12-08
EP0358051A2 (fr) 1990-03-14
DE8811207U1 (de) 1988-10-27

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