EP1962319B1 - Appareil de commutation électromagnétique - Google Patents

Appareil de commutation électromagnétique Download PDF

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Publication number
EP1962319B1
EP1962319B1 EP07021945A EP07021945A EP1962319B1 EP 1962319 B1 EP1962319 B1 EP 1962319B1 EP 07021945 A EP07021945 A EP 07021945A EP 07021945 A EP07021945 A EP 07021945A EP 1962319 B1 EP1962319 B1 EP 1962319B1
Authority
EP
European Patent Office
Prior art keywords
armature
force
switching device
magnet armature
spring
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.)
Not-in-force
Application number
EP07021945A
Other languages
German (de)
English (en)
Other versions
EP1962319A3 (fr
EP1962319A2 (fr
Inventor
Wolfgang Dr. Feil
Andreas Dr. Krätzschmar
Reinhard Dr. Maier
Bernd Trautmann
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
Priority to EP07021945A priority Critical patent/EP1962319B1/fr
Priority to CN200810007033.3A priority patent/CN101252061B/zh
Publication of EP1962319A2 publication Critical patent/EP1962319A2/fr
Publication of EP1962319A3 publication Critical patent/EP1962319A3/fr
Application granted granted Critical
Publication of EP1962319B1 publication Critical patent/EP1962319B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
    • 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

Definitions

  • the invention relates to an electromagnetic switching device with an electromagnet and a movable armature, which is mounted in the switching device with a force acting against the closing force and in an OPEN position different from zero holding force.
  • FIG. 1 contains such a switching device, an electromagnet 1 with a magnetic yoke 2, on the example, two magnetic coils 4 are arranged for magnetic excitation.
  • An armature 6 associated with the magnetic yoke 2 is resiliently mounted in a housing 10 of the switching device which is illustrated only symbolically by a return spring arrangement constructed from two return springs 8 connected in parallel.
  • Magnetic yoke 2, solenoid 4 and armature 6 form an electromagnetic drive of the switching device.
  • the armature 6 is non-positively connected via a prestressed contact spring 12 with a movable contact bridge 14.
  • the movable contact bridge 14 are associated with two fixed contact carrier 16.
  • the magnet armature 6 forms the actuator of the magnetic drive for the relative movement between the contact bridge 14 and the contact carrier sixteenth
  • the associated force curve is in Fig. 4 applied.
  • the force exerted on the armature 6 by the return springs 8 and the contact spring 12 restoring force F against the distance d between the pole faces 60, 20 of the armature 6 and the magnetic yoke 2 is applied.
  • the curve shows that the return springs 8 (FIG. Fig. 1 ) in the OPEN position exert the holding force F 0 .
  • the armature 6 moves under the action of the electromagnet In this movement increases with increasing length contraction of the return springs 8, the forces exerted on the magnet armature 6, oppositely directed restoring force F corresponding to the sum of the spring constant of the return springs 8 linearly to.
  • the contacts 18 and the force acting on the armature 6 restoring force F increases by the connection of the biased contact spring 12 abruptly.
  • the invention is based on the object to provide an electromagnetic switching device with improved spring force characteristic.
  • the at least one first return spring is mounted between a first support point arranged stationarily in the switching device and a second support point arranged on the magnet armature. These support points are offset laterally with respect to a system axis running parallel to the direction of movement of the magnet armature.
  • the at least one first return spring is movably mounted with its second support point in a slotted guide on the armature.
  • the extension axis of the first return spring is in this case advantageously transversely to the system axis, ie the direction of movement of the armature with respect to the main body.
  • a path-force curve can be realized, in which a high holding force in the OPEN position is possible without the restoring force acting on the armature during the closing movement with decreasing distance from the electromagnet or increasing distance from the rest position in the OPEN position increases.
  • the force exerted by the first return spring 50 total force F 1ges, 0 now has a counter to the direction 56 of the closing movement directed to the system axis 58 parallel holding force F 1p, 0 and a vertical to the path of the slide guide 70 component F 1s, 0 .
  • the entire holding force F 0 is composed of the holding force F 1p, 0 exerted by the first return spring 50 and the holding force F 20 exerted by the second return spring 8.
  • the second return spring 8 corresponds structurally explained in the prior art return spring and is also designed in the embodiment as a compression spring whose spring axis 61 is oriented parallel to the direction of movement 56.
  • both first and second return springs are designed as compression springs.
  • tension springs instead of compression springs.
  • second return springs are no longer required.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Linear Motors (AREA)

Claims (4)

  1. Appareil de commutation électromagnétique avec un électro-aimant (1) et une armature d'aimant mobile (6) et avec au moins un premier ressort de rappel (50) qui agit sur l'armature d'aimant (6), qui exerce sur l'armature d'aimant (6), dans une position OUVERTE, une force de maintien (F1p,0) différente de zéro et qui est logé de manière telle sur l'armature d'aimant (6) que le sens de la force globale (F1ges ) qu'il exerce sur l'armature d'aimant (6) dépend de manière telle de la position de l'armature d'aimant (6) que la composante (F1p) de la force globale (F1ges) agissant à l'encontre de la direction du mouvement de fermeture de l'armature d'aimant (6) est maximale dans la position OUVERTE, l'au moins un premier ressort de rappel (50) étant logé entre un premier point d'appui (52) situé de manière fixe dans l'appareil de commutation et un deuxième point d'appui (54) situé sur l'armature d'aimant (6), le premier point d'appui (52) et le deuxième point d'appui (54) étant décalés latéralement l'un par rapport à l'autre en référence à un axe du système (58) parallèle à la direction du mouvement (56) de l'armature d'aimant (6), caractérisé en ce que l'au moins un premier ressort de rappel (50), avec son deuxième point d'appui (54) dans un guidage à coulisse (70), est logé mobile sur l'armature d'aimant (6).
  2. Appareil de commutation électromagnétique selon la revendication 1, dans lequel l'axe selon lequel s'étend le premier ressort de rappel est transversal par rapport à l'axe du système.
  3. Appareil de commutation électromagnétique selon l'une des revendications précédentes, dans lequel le premier ressort de rappel (50) est un ressort de compression.
  4. Appareil de commutation électromagnétique selon l'une des revendications précédentes, avec au moins un deuxième ressort de rappel (8) dont l'axe de ressort (61) est orienté parallèlement à la direction du mouvement (56) de l'armature d'aimant (6).
EP07021945A 2007-02-23 2007-11-12 Appareil de commutation électromagnétique Not-in-force EP1962319B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07021945A EP1962319B1 (fr) 2007-02-23 2007-11-12 Appareil de commutation électromagnétique
CN200810007033.3A CN101252061B (zh) 2007-02-23 2008-01-25 电磁开关装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07003816 2007-02-23
EP07021945A EP1962319B1 (fr) 2007-02-23 2007-11-12 Appareil de commutation électromagnétique

Publications (3)

Publication Number Publication Date
EP1962319A2 EP1962319A2 (fr) 2008-08-27
EP1962319A3 EP1962319A3 (fr) 2009-11-18
EP1962319B1 true EP1962319B1 (fr) 2012-03-14

Family

ID=38258013

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07021945A Not-in-force EP1962319B1 (fr) 2007-02-23 2007-11-12 Appareil de commutation électromagnétique
EP07021942.3A Not-in-force EP1962318B1 (fr) 2007-02-23 2007-11-12 Appareil de commutation électromagnétique

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP07021942.3A Not-in-force EP1962318B1 (fr) 2007-02-23 2007-11-12 Appareil de commutation électromagnétique

Country Status (3)

Country Link
EP (2) EP1962319B1 (fr)
CN (2) CN101252060B (fr)
AT (1) ATE549733T1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE476271A (fr) * 1942-08-18
FR1188404A (fr) * 1954-02-17 1959-09-22 Perfectionnements aux relais et contacteurs bipolaires
DE1155537B (de) * 1961-01-23 1963-10-10 Hamburger Elektrobau Dipl Ing Schneidankerlagerung fuer Relais
DE3340904A1 (de) * 1983-11-11 1985-05-23 Westinghouse FANAL-Schaltgeräte GmbH, 5600 Wuppertal Magnetisch betaetigte schaltanordnung, insbesondere luftschuetz
DE4341330C1 (de) * 1993-12-03 1995-04-20 Siemens Ag Elektromagnetisches Schaltgerät
DE19608729C1 (de) * 1996-03-06 1997-07-03 Siemens Ag Elektromagnetisches Schaltgerät

Also Published As

Publication number Publication date
ATE549733T1 (de) 2012-03-15
CN101252061B (zh) 2011-02-16
EP1962318B1 (fr) 2015-08-19
EP1962318A2 (fr) 2008-08-27
CN101252060A (zh) 2008-08-27
CN101252060B (zh) 2011-11-02
CN101252061A (zh) 2008-08-27
EP1962319A3 (fr) 2009-11-18
EP1962319A2 (fr) 2008-08-27
EP1962318A3 (fr) 2009-11-18

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