EP0433551A1 - Disjoncteur contacteur - Google Patents

Disjoncteur contacteur Download PDF

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Publication number
EP0433551A1
EP0433551A1 EP90115730A EP90115730A EP0433551A1 EP 0433551 A1 EP0433551 A1 EP 0433551A1 EP 90115730 A EP90115730 A EP 90115730A EP 90115730 A EP90115730 A EP 90115730A EP 0433551 A1 EP0433551 A1 EP 0433551A1
Authority
EP
European Patent Office
Prior art keywords
armature
contact carrier
shoulder
pin
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.)
Granted
Application number
EP90115730A
Other languages
German (de)
English (en)
Other versions
EP0433551B1 (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, the drive having 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 passing through a central bore of the armature and with reaches behind a paragraph.
  • the pin above the armature is widened to form a cylindrical extension which penetrates 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 contact bearing 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 because of 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 behind 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 expensive 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 at the outset 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 the paragraph engages behind, the length of the pin between the pressure surface of the contact carrier and its paragraph the length of the central bore of whose upper edge corresponds to the shoulder.
  • the contact carrier can thus be easily hooked into 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 the previously conventional designs, in which a core manufactured 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 when the contactor closes, the armature is always kept at a distance from the stepped area of the metal housing plate, 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 deeply 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 usual 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 14 forming a shoulder.
  • 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)
  • Switch Cases, Indication, And Locking (AREA)
  • Electromagnets (AREA)
  • Contacts (AREA)
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 1989-12-22
DE8915089U DE8915089U1 (de) 1989-12-22 1989-12-22 Schaltschütz

Publications (2)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014005611A1 (fr) * 2012-07-02 2014-01-09 Schaltbau Gmbh Contacteur électrique à entraînement rotatif ainsi que procédé d'enclenchement et/ou déclenchement d'un contacteur électrique
JP2018101574A (ja) * 2016-12-21 2018-06-28 アンデン株式会社 電磁継電器

Families Citing this family (1)

* 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

Citations (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
GB2018030A (en) * 1978-03-30 1979-10-10 Bosch Gmbh Robert Electromagnetic switch for starter motor control in internal combustion engines
EP0099998A1 (fr) * 1982-07-30 1984-02-08 Robert Bosch Gmbh Contacteur électromagnétique, notamment pour démarreurs de moteurs à combustion interne

Patent Citations (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
GB2018030A (en) * 1978-03-30 1979-10-10 Bosch Gmbh Robert Electromagnetic switch for starter motor control in internal combustion engines
EP0099998A1 (fr) * 1982-07-30 1984-02-08 Robert Bosch Gmbh Contacteur électromagnétique, notamment pour démarreurs de moteurs à combustion interne

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014005611A1 (fr) * 2012-07-02 2014-01-09 Schaltbau Gmbh Contacteur électrique à entraînement rotatif ainsi que procédé d'enclenchement et/ou déclenchement d'un contacteur électrique
CN103890889A (zh) * 2012-07-02 2014-06-25 沙尔特宝有限公司 带有飞轮驱动的电气接触器以及用于接通和/或断开电气接触器的方法
US9224545B2 (en) 2012-07-02 2015-12-29 Schaltbau Gmbh Electric contactor with flywheel drive and method of switching an electric contactor on and/or off
RU2578208C2 (ru) * 2012-07-02 2016-03-27 Шальтбау ГмбХ Электрический контактор с маховичным приводом и способ включения и/или выключения электрического контактора
CN103890889B (zh) * 2012-07-02 2016-04-27 沙尔特宝有限公司 带有飞轮驱动的电气接触器以及用于接通和/或断开电气接触器的方法
JP2018101574A (ja) * 2016-12-21 2018-06-28 アンデン株式会社 電磁継電器
WO2018116547A1 (fr) * 2016-12-21 2018-06-28 アンデン株式会社 Relais électromagnétique

Also Published As

Publication number Publication date
DE59006040D1 (de) 1994-07-14
EP0433551B1 (fr) 1994-06-08
DE8915089U1 (de) 1990-10-04

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