EP0478541B1 - Interrupteur auxiliaire pour commutateurs electromagnetiques - Google Patents

Interrupteur auxiliaire pour commutateurs electromagnetiques Download PDF

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Publication number
EP0478541B1
EP0478541B1 EP89907142A EP89907142A EP0478541B1 EP 0478541 B1 EP0478541 B1 EP 0478541B1 EP 89907142 A EP89907142 A EP 89907142A EP 89907142 A EP89907142 A EP 89907142A EP 0478541 B1 EP0478541 B1 EP 0478541B1
Authority
EP
European Patent Office
Prior art keywords
contact bridge
housing
auxiliary switch
compression springs
bridge carrier
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
EP89907142A
Other languages
German (de)
English (en)
Other versions
EP0478541A1 (fr
Inventor
Jakob Bolz
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.)
Eaton Industries GmbH
Panasonic Electric Works Co Ltd
Original Assignee
Kloeckner Moeller GmbH
Matsushita Electric Works Ltd
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 Kloeckner Moeller GmbH, Matsushita Electric Works Ltd filed Critical Kloeckner Moeller GmbH
Publication of EP0478541A1 publication Critical patent/EP0478541A1/fr
Application granted granted Critical
Publication of EP0478541B1 publication Critical patent/EP0478541B1/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
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity

Definitions

  • the invention relates to an auxiliary switch for an electromagnetic switching device which contains in a multi-part housing equipped with fixed contacts a position-secured by means of a compression spring and movable when the drive is excited / not excited against the spring force provided with bridge contacts.
  • Auxiliary switches with positively driven auxiliary contacts which can be designed as make and / or break contacts, for mounting on electromagnetic contactors are known.
  • the compression spring which holds the contact bridge carrier against the tensile force of the magnet, is subsequently arranged in the axis of movement of the contact bridge carrier and accommodated in a corresponding space formed by the housing parts enclosing the contact bridge carrier.
  • the invention has for its object to develop the known auxiliary switch in such a way that the balance of forces of the electromagnetic switching device and thus the response values of the basic device are changed only slightly by the attachment of an additional auxiliary switch.
  • the arrangement according to the invention of two inclined compression springs causes a lower counterforce with increasing stroke, i.e. when the spring axes approach the perpendicular to the stroke movement axes.
  • the object of the invention is thus achieved.
  • This arrangement of two compression springs also allows the overall length of the auxiliary switch to be reduced without restricting the spring travel.
  • the principle of the negative spring characteristic for the restoring force is to be carried out in such a way that the spring axes of the compression springs in the holding state (when the magnet is excited) run almost perpendicular to the axis of movement of the contact bridge carrier.
  • a simplified assembly of the auxiliary switch is possible according to a further proposal of the invention in that in the housing parts on the side facing the contact bridge carrier recesses have a push-through opening to the top of the housing, through which the compression springs can be inserted when the housing is mounted. This means that the compression springs are only inserted with the housing parts after the contact bridge support has been installed.
  • the housing parts of the auxiliary switch can be positively connected to one another, for example, by means of locking lugs protruding along the dividing joint on the housing walls of a housing part and assigned locking grooves on the second housing part.
  • the recess for the storage and support of the compression spring in each housing part between the Contact switching chambers of the housing parts is provided centrally as a chamber directed into the interior of the housing.
  • Figure 1 shows an auxiliary switch with four make contacts in an isometric view of the two housing parts A, B, the contact bridge support 10 and the compression springs 2, 3.
  • the contact bridge support 10 is equipped with the bridge contacts 101 as make and / or break contacts in a known manner and has in Region of one end on the upper side 103 of the protruding switching plunger 102.
  • the bearing block 104 which has blind holes 105 and 107 directed towards the two sides and which are separated by the partition 106, is integrally formed on the top of the contact bridge carrier 10.
  • the partition 106 at the foot of the blind holes forms the bearing surface for the compression springs 2, 3 and is preferably arranged slightly inclined to the longitudinal axis 1 of the contact bridge support 10, so that the spring axes 201, 301 in in the switched-on state and also in the switched-off state in a concave position with respect to the plane 108 running perpendicular to the movement axis 1 of the contact bridge support 10 through the spring center point on the contact bridge support.
  • the housing halves A, B have the switching chambers 35, 45 on their outer side, an intermediate chamber 46 and 36 comprising the recesses 43, 33 for receiving the compression springs 2, 3 being provided in the center between two switching chambers 45.
  • the fixed contacts 4 are provided on the side facing the housing interior. Above the fixed contacts 4, the receiving space for supporting the one end of the compression springs 2, 3 in the form of the recesses 43 and 33 in the housing parts is formed approximately centrally in the housing.
  • the recesses 33, 43 form a space widening towards the contact bridge support 10, the rear wall on which the compression springs 2 and 3 are supported does not run parallel to the movement axis 1 of the contact bridge support, but at a small angle ⁇ of approximately 10 to 20 degrees is inclined from the axis of movement 1.
  • the bearing surfaces in the blind holes 105, 107 of the contact bridge support for the compression springs are also arranged parallel to this rear wall. It is hereby achieved according to the invention that in the excited state of the drive of the contactor, see FIG. 3, the spring force of the compression springs against the drive of the contactor approaches zero in the tightened state, but has no dead center passage, rather the spring axes are always smaller at an angle ⁇ 90 degrees to the axis of movement 1 of the contact bridge support 10 remain.
  • the spring force of the compression springs 2, 3 is greatest in the “switch-off direction” of the contact bridge carrier 10.
  • the component of the compression springs acting in the direction of the axis of movement 1 of the contact bridge support 10 is meant.
  • the back pressure force of the compression springs 2, 3 is lowest in the activated stage of the contactor.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Contacts (AREA)
  • Tumbler Switches (AREA)
  • Push-Button Switches (AREA)

Abstract

Un interrupteur auxilaire pour un commutateur électromagnétique comprend deux ressorts de pression (2, 3) agencés en dehors de l'axe de déplacement (1) du support (10) du contact à pont. Chaque ressort de pression est monté, à la manière d'une articulation à genouillère à deux branches, par une extrémité dans des trous borgnes ou similaires ménagés dans des faces opposées du support (10) du contact à pont, et par l'autre extrémité dans des évidements ménagés dans des parties (A, B) du logement. Ces ressorts ont une courbe négative de force de rappel contre la force de traction de l'entraînement.

Claims (4)

  1. Interrupteur auxiliaire pour un appareil de commutation électromagnétique, cet interrupteur contenant, dans un boîtier en plusieurs parties équipé de contacts fixes, un porte-contacts muni de contacts à pont, arrêté en position au moyen d'un ressort de compression et mobile contre la force de ce ressort en cas d'excitation/non-excitation de l'entraînement, caractérisé par le fait que deux ressorts de compression (2, 3) disposés à l'extérieur de l'axe (1) de déplacement du porte-contacts (10) sont montés à la manière d'une articulation à genouillère à deux bras, chacun par une extrémité dans l'un de deux trous borgnes (105, 107) ou analogues aménagés en des côtés opposés du porte-contacts (10) et, par l'autre extrémité, dans un évidement (33, 43) prévu dans chaque partie (A, B) du boîtier, et présentent une caractéristique de force de rappel élastique négative par rapport à la force de traction de l'entraînement.
  2. Interrupteur auxiliaire selon revendication 1,
    caractérisé par le fait que la surface d'appui des ressorts de compression (2, 3) sur le porte-contacts (10) est agencée de manière que, dans la condition de maintien (l'aimant étant excité) les axes (201, 301) des ressorts de compression (2, 3) s'étendent presque perpendiculairement à l'axe de déplacement (1) du porte-contacts (10).
  3. Interrupteur auxiliaire selon revendication 1 ou 2,
    caractérisé par le fait que les évidements (33, 43) aménagés dans les parties (A,B) du boîtier, sur le côté conjugué au porte-contacts (10), présentent, du côté supérieur du boîtier, une ouverture de passage (34, 44) par laquelle les ressorts de compression (2, 3) peuvent être introduits lorsque le boîtier (A, B, 10) est monte.
  4. Interrupteur auxiliaire selon l'une des revendications 1 à 3,
    caractérisé par le fait que les parties (A, B) du boîtier entourant le porte-contacts (10) peuvent être assemblées l'une à l'autre, par une liaison mécanique positive, au moyen de nez d'enclenchement (41, 42) débordant au-delà des parois de l'une des parties du boîtier, le long du joint de partage de celui-ci, et de rainures d'enclenchement conjuguées sur la deuxième partie (A) du boîtier.
EP89907142A 1988-06-11 1989-06-21 Interrupteur auxiliaire pour commutateurs electromagnetiques Expired - Lifetime EP0478541B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3819935A DE3819935C2 (de) 1988-06-11 1988-06-11 Hilfsschalter für ein elektromagnetisches Schaltgerät

Publications (2)

Publication Number Publication Date
EP0478541A1 EP0478541A1 (fr) 1992-04-08
EP0478541B1 true EP0478541B1 (fr) 1993-11-03

Family

ID=6356355

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89907142A Expired - Lifetime EP0478541B1 (fr) 1988-06-11 1989-06-21 Interrupteur auxiliaire pour commutateurs electromagnetiques

Country Status (4)

Country Link
US (1) US5206617A (fr)
EP (1) EP0478541B1 (fr)
DE (1) DE3819935C2 (fr)
WO (1) WO1990016077A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6084488A (en) * 1998-04-03 2000-07-04 Pass & Seymour, Inc. Compact high current relay
US20100156349A1 (en) * 2008-12-22 2010-06-24 Nathan Bowman Littrell System and method for pay as you go charging for electric vehicles
KR101917885B1 (ko) 2012-09-26 2018-11-13 현대일렉트릭앤에너지시스템(주) 전자접촉기
DE102014219946B3 (de) * 2014-10-01 2016-02-25 Siemens Aktiengesellschaft Schaltgerät mit federunterstütztem Hilfsschaltmechanismus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1239414A (fr) * 1959-07-17 1960-08-26 Normacem Sa Perfectionnement aux circuits magnétiques des contacteurs ou appareils analogues
AT355126B (de) * 1975-11-14 1980-02-11 Itt Austria Relais
DE2622100C3 (de) * 1976-05-18 1982-06-09 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Schaltgerät mit wahlweise als Öffner- oder Schließerkontakt veränderbaren Kontakten
FR2408209A1 (fr) * 1977-11-08 1979-06-01 Telemecanique Electrique Contacteur electro-magnetique equipe d'un electro-aimant sensible aux surintensites pour provoquer la limitation et la coupure des courants excessifs
DE3377758D1 (en) * 1982-04-06 1988-09-22 Asea Ab Electromagnetically operable switching device
DE3340904A1 (de) * 1983-11-11 1985-05-23 Westinghouse FANAL-Schaltgeräte GmbH, 5600 Wuppertal Magnetisch betaetigte schaltanordnung, insbesondere luftschuetz
CH663113A5 (de) * 1983-11-28 1987-11-13 Sprecher & Schuh Ag Kupplungsanordnung zwischen einem elektromagnetischen schaltgeraet und einem daran abnehmbar angebrachten hilfskontaktblock.
FR2596577B1 (fr) * 1986-03-28 1993-04-30 Serd Soc Et Realisa Disjonct Declencheur polarise

Also Published As

Publication number Publication date
US5206617A (en) 1993-04-27
EP0478541A1 (fr) 1992-04-08
DE3819935C2 (de) 1996-06-20
WO1990016077A1 (fr) 1990-12-27
DE3819935A1 (de) 1989-12-14

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