EP0433551B1 - Disjoncteur contacteur - Google Patents

Disjoncteur contacteur Download PDF

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Publication number
EP0433551B1
EP0433551B1 EP90115730A EP90115730A EP0433551B1 EP 0433551 B1 EP0433551 B1 EP 0433551B1 EP 90115730 A EP90115730 A EP 90115730A EP 90115730 A EP90115730 A EP 90115730A EP 0433551 B1 EP0433551 B1 EP 0433551B1
Authority
EP
European Patent Office
Prior art keywords
armature
contact carrier
pin
setoff
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.)
Expired - Lifetime
Application number
EP90115730A
Other languages
German (de)
English (en)
Other versions
EP0433551A1 (fr
Inventor
Robert Kralik
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.)
Schaltbau GmbH
Original Assignee
Schaltbau GmbH
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 Schaltbau GmbH filed Critical Schaltbau GmbH
Publication of EP0433551A1 publication Critical patent/EP0433551A1/fr
Application granted granted Critical
Publication of EP0433551B1 publication Critical patent/EP0433551B1/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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/001—Means for preventing or breaking contact-welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/163—Details concerning air-gaps, e.g. anti-remanence, damping, anti-corrosion
    • 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 a contactor with at least one spring-loaded contact carrier mounted in its housing and a drive for moving the contact carrier from an open position to a closed position in which the resilient contacts rest on fixed contacts to the housing, and with a spring for moving the Contact carrier from the closed position to the open position, wherein the drive has an armature movable in a magnetic field coil, which is positively connected to the contact carrier and presses in the closed position against a pressure surface of the contact carrier, the contact carrier penetrating a central bore of the armature with and with reaches behind a paragraph.
  • the pin above the armature is broadened into a cylindrical extension which passes through a housing plate covering the drive of the contactor.
  • a cylindrical part is usually used in this housing plate, which serves as a stop for the armature when it moves the contact bridge into the closed position.
  • One or more contact bridges are again spring-mounted in the contact carrier. To close the contacts, therefore, the spring supporting the contact carrier must first be compressed, after which the die Contact bridges in the springs supporting springs are compressed by a certain amount. This amount is referred to as the subsequent stroke and serves to ensure that the movable contacts rest securely on the contacts fixed to the housing.
  • the opening of the contacts is effected solely by the spring supporting the contact carrier in the housing, while the armature falls back into its initial position, partly due to its weight, partly because it is also covered by the spring force over the pressure surface.
  • the force of the spring supporting the contact carrier in the housing may not be sufficient to separate the movable contacts from the contact elements fixed to the housing.
  • the use of a stronger spring usually stands in the way that the drive would then also have to be reinforced, which would lead to an increase in the construction volume.
  • a contactor of the type mentioned above is e.g. known from US-PS 2,755,354.
  • the anchor is engaged by a nut arranged at the end of a screw passing through the anchor, so that the weight of the anchor also supports the opening process.
  • it is quite complex to assemble the contactor, and it is in any case necessary that the side of the armature facing away from the contact bridge is accessible.
  • the object of the present invention is therefore to improve a contactor of the type mentioned in such a way that the contact carrier can be connected to the armature in a simple manner.
  • the diameter of the central bore of the armature is dimensioned so is that the pin together with the paragraph can be inserted into the bore, and that a shoulder is formed in the bore of the armature, which engages behind the paragraph, the length of the pin between the pressure surface of the contact carrier and its paragraph the length of the central bore of whose top edge corresponds to the shoulder.
  • the contact carrier can thus be easily suspended in the anchor, which is easy to assemble and disassemble. Furthermore, the armature is firmly clamped between the pressure surface and the shoulder, which has the advantage that the acceleration of the armature takes place at the same time due to the force of gravity and the springs supporting the contact bridges, which increases the tear-off effect.
  • the shoulder extends in a hook shape to a radial side of the pin.
  • the pin is then inserted eccentrically in the bore of the armature, while in the inserted state the pin can again be located centrally in the bore of the armature.
  • the drive is covered by a metal housing plate, through which an opening is penetrated for hanging the pin of the contact carrier, and if the housing plate is in a region concentrically surrounding the opening, which corresponds approximately to the diameter of the armature , is stepped towards the anchor. Due to this step-like offset, which is made in one piece by stamping in the metal plate is formed, the production of the housing plate becomes much more cost-effective than in conventional designs in which a core made as a turned part was inserted into the housing plate.
  • a spring lamellar disc is arranged between the armature and the housing plate, which advantageously consists of a non-magnetic material.
  • This spring plate ensures that the armature is always kept at a distance from the stepped area of the metal housing plate during a closing movement of the contactor, so as to prevent the armature from sticking to the metal housing plate when the contactor is to be opened.
  • the electrical switching device consisting of two contactors is shown. It comprises two drives 1, of which only the left drive is visible.
  • the drive consists of a coil 2, within which an armature made of ferromagnetic material is arranged to be vertically movable in the direction of the double arrow.
  • the armature 3 is penetrated by a central bore 4 through which the vertical pin 5 of a contact carrier 6 extends.
  • the contact carrier 6 is via a spring 7 against the upward closing direction spring loaded. This means that the force of the spring 7 must be overcome by the drive 1 during the closing movement of the contact carrier.
  • the drive 1 is separated by a drive housing plate 8 from the upper housing 9 receiving the contact carriers 6.
  • the housing plate 8 is provided with an aligned opening 10.
  • the housing plate 8 is designed as a stamped and bent part and is deep-drawn down in a region concentrically around the opening 10, the diameter of the deep-drawn region 11 corresponding approximately to the diameter of the armature. This avoids the rotary part used in the conventional contactors in the housing plate, which keeps the armature at a distance from the housing plate.
  • a spring lamellar disk 12 is arranged, which consists of an antimagnetic material such as brass and prevents the armature from "sticking" to the housing plate 8 when the contact carrier is closed.
  • the spring plate disk 12 is shown in a top view in FIG. 2.
  • the pin 5 of the contact carrier 6 has at its lower end a hook-shaped shoulder 13 which engages behind the central bore 4 in a recess forming a shoulder 14.
  • a pressure surface 18 is also formed on the contact carrier 6, from which the pin 5 extends. The length of the pin between the pressure surface 18 and its hook-shaped shoulder 13 corresponds to the length of the central bore 4 of the armature 3 from its upper edge 19 to the shoulder 14. The armature 3 is thus positively between the Pressure surface 18 of the contact carrier and the paragraph 13 held.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Contacts (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Electromagnets (AREA)

Claims (4)

  1. Contacteur de couplage avec au moins un support de contact (6) logé dans son boîtier, supportant des contacts à ressorts et avec une commande (1) pour mouvoir le support de contact d'une position d'ouverture dans une position de fermeture, dans laquelle les contacts à ressorts adhèrent contre les contacts fixes solidaires du boîtier, et avec un ressort (7) pour déplacer le support de contact (6) de la position de fermeture à la position d'ouverture, la commande (1) comportant un induit (3) mobile dans une bobine de champ magnétique (2), induit qui est lié par interpénétration par la forme au support de contact et presse dans la position de fermeture contre une surface d'appui (18) du support de contact, le support de contact (6) traversant par une tige (5) un alésage central (4) de l'induit (3) et s'accrochant à l'arrière de celui-ci par un talon (13), caractérisé en ce que le diamètre de l'alésage central (4) de l'induit (3) est dimensionné de façon que la tige (5) avec le talon (13) puisse être mise en place dans l'alésage (4), et en ce que dans l'alésage (4) de l'induit, existe un épaulement (14) que le talon (13) puisse accrocher, la longueur de la tige (5), entre la surface d'appui (18) du support de contact (6) et son talon, correspond à la longueur de l'alésage central (4) de l'induit depuis son bord supérieur (19) jusqu'à l'épaulement (14).
  2. Contacteur de couplage selon la revendication 1, caractérisé en ce que le talon (13) s'étend en forme de crochet vers un côté radial de la tige (5).
  3. Contacteur de couplage selon les revendications 1 ou 2, caractérisé en ce que la commande (1) est recouverte d'une plaque métallique du boitier (8), qui est munie d'une ouverture (10) pour le passage de la tige (5) du support de contacteur (6), et en ce que la plaque be boitier (8) est composée en forme de gradin vers l'induit (3) dans une zone entourant concentriquement l'ouverture (10), zone correspondant environ au diamètre de 1 induit (3).
  4. Contacteur de couplage selon la revendication 3, caractérisé en ce qu ' il a été mis en place entre l'induit (3) et la plaque de boitier (8) un disque à lamelles de ressort (12).
EP90115730A 1989-12-22 1990-08-16 Disjoncteur contacteur Expired - Lifetime EP0433551B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8915089U DE8915089U1 (de) 1989-12-22 1989-12-22 Schaltschütz
DE8915089U 1989-12-22

Publications (2)

Publication Number Publication Date
EP0433551A1 EP0433551A1 (fr) 1991-06-26
EP0433551B1 true EP0433551B1 (fr) 1994-06-08

Family

ID=6845758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90115730A Expired - Lifetime EP0433551B1 (fr) 1989-12-22 1990-08-16 Disjoncteur contacteur

Country Status (2)

Country Link
EP (1) EP0433551B1 (fr)
DE (2) DE8915089U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19648053C1 (de) * 1996-11-20 1998-03-12 Siemens Ag Elektromagnetisches Schaltgerät
UA111081C2 (uk) * 2012-07-02 2016-03-25 Шалтбау Гмбх Електричний контактор з маховичним приводом і спосіб вмикання і/або вимикання електричного контактора
JP6737167B2 (ja) * 2016-12-21 2020-08-05 アンデン株式会社 電磁継電器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755354A (en) * 1953-03-16 1956-07-17 Allen Bradley Co Interlocked switch actuators
CH526852A (de) * 1971-01-27 1972-08-15 Spaelti Elektro App Ag Schalteinrichtung für elektrische Anlagen
US3815060A (en) * 1973-04-19 1974-06-04 Square D Co Electromagnetic contactor for battery powered vehicles
DE2813699C2 (de) * 1978-03-30 1986-08-28 Robert Bosch Gmbh, 7000 Stuttgart Elektromagnetischer Schalter, insbesondere für Andrehvorrichtungen von Brennkraftmaschinen
DE8221714U1 (de) * 1982-07-30 1982-09-23 Robert Bosch Gmbh, 7000 Stuttgart Elektromagnetischer Schalter, insbesondere für Andrehvorrichtungen von Brennkraftmaschinen

Also Published As

Publication number Publication date
DE59006040D1 (de) 1994-07-14
DE8915089U1 (de) 1990-10-04
EP0433551A1 (fr) 1991-06-26

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