EP0440953B1 - Wiedereinschaltsperre bei einem Relais - Google Patents

Wiedereinschaltsperre bei einem Relais Download PDF

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Publication number
EP0440953B1
EP0440953B1 EP90124671A EP90124671A EP0440953B1 EP 0440953 B1 EP0440953 B1 EP 0440953B1 EP 90124671 A EP90124671 A EP 90124671A EP 90124671 A EP90124671 A EP 90124671A EP 0440953 B1 EP0440953 B1 EP 0440953B1
Authority
EP
European Patent Office
Prior art keywords
operating element
link
contact
peg
actuating element
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
EP90124671A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0440953A2 (de
EP0440953A3 (en
Inventor
Ursula Seitz
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.)
Hengstler GmbH
Original Assignee
Hengstler Bauelemente 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 Hengstler Bauelemente GmbH filed Critical Hengstler Bauelemente GmbH
Priority to AT90124671T priority Critical patent/ATE104467T1/de
Publication of EP0440953A2 publication Critical patent/EP0440953A2/de
Publication of EP0440953A3 publication Critical patent/EP0440953A3/de
Application granted granted Critical
Publication of EP0440953B1 publication Critical patent/EP0440953B1/de
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
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/647—Driving arrangements between movable part of magnetic circuit and contact intermediate part comprising interlocking means for different contact pairs
    • 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
    • H01H2003/002—Means for preventing or breaking contact-welding with lockout, e.g. two contact pairs in series
    • 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
    • H01H50/32—Latching movable parts mechanically

Definitions

  • the invention relates to a reclosing lock in a relay, wherein a pivotable actuating element is provided which lies in the path of movement of the armature and is connected to movable contacts of two contact arrangements, and a recess is arranged in the actuating element with which it engages a peg-shaped element is pivotally and displaceably guided (DE-A-36 02 692).
  • Relays of this type are used, for example, in household appliances for multi-pole switching of electrical circuits, high currents flowing through the contacts of the relay when, for example, the heating of washing machines or dishwashers is switched. If one of the movable contacts is welded or glued in the event of an overload, the circuit in question is only switched off with one pole, which is not readily apparent when the device is in operation. With the restart lock in a relay according to the invention, a renewed closing of the circuit is now prevented if both contacts have not previously opened.
  • a restart lock in a relay of the type mentioned is already known from DE-OS 36 02 692.
  • a pivotable actuating element is provided for actuating the contact arrangement, which is pivoted when a pair of contacts is glued to a pin, so that an actuating surface provided on the actuating element is brought outside the engagement of a shift finger moved by the armature becomes.
  • this known reclosing lock is relatively complex with its actuating surface lying on a pointer of the actuating element, which has to be brought into engagement with a shift finger. Furthermore, it could be considered a disadvantage that the armature can still be operated in the known restart lock despite a fault present in the relay.
  • the object of the present invention is therefore to develop a reclosing lock of the type mentioned in such a way that, with a structurally simple design and high operational reliability, the blocking of the entire relay arrangement is achieved, the function being to be fully achieved again when the welded contact is released again.
  • the object is achieved in that the recess in the actuating element is designed as a setting such that after pivoting the actuating element by opening only one contact arrangement, this is supported on the pin-shaped element in the manner of a lock as long as the asymmetry of the acting forces consists.
  • the essence of the invention is therefore that the locking elements are arranged within the actuating element itself in the form of a backdrop.
  • the actuating element pivots, the link then being supported on a pin-shaped element at a rounding, which element extends through the link, whereby the longitudinally moving actuating element is completely locked both upwards and downwards.
  • the actuating movement of the armature is also restricted, as a result of which a possible malfunction in the relay can be easily recognized.
  • the lock acts as long as a contact is welded. As soon as the e.g. weak welding due to any mechanical influences, the locking is released by the sliding out of the pin-shaped element from the rounding of the setting, so that the relay is fully functional again. If you press the button again, the previous lock will still be canceled.
  • the link is arranged symmetrically in the longitudinal direction of the actuating element and rounded recesses are provided for locking the link on the peg-shaped element and a slot-like recess is also arranged in the longitudinal direction of the actuating element.
  • the recesses are advantageously provided for the locking of the link, pointing obliquely outward, the pin-shaped element being encircled in a rounded manner in a rounding so that the link is supported on the pin-shaped element in the actuating direction of the armature.
  • the backdrop slides back into the rest position due to the guidance on rounded surfaces. The relay is then fully functional again.
  • the locking of the actuating element in the area of the link is achieved in a particularly simple constructive manner with semicircular recesses, the armature advantageously being included in the locking, so that in the event of a malfunction in the actuation of the relay, the armature is also actuated is inhibited.
  • the actuating element directly surrounds the respective movable contact in the area of the contact springs, holding pins being arranged opposite one another on the actuating element, which form a slot between them which engages around the contact springs.
  • triangular bearing surfaces are formed opposite each other in the area of the slot, the actuating element engaging around the contact spring with knife-shaped bearings.
  • an intermediate member e.g. a slide which carries the movable contacts is provided, the intermediate member being rotatably connected to the actuating element in the region of a bearing.
  • the actuating element detects the contacts via a slide, which results in special advantages in terms of design.
  • the contacts to be switched can be arranged at a greater distance from the actuating element via the slide arrangement, and several different contact arrangements can also be switched via the slide in connection with engagement surfaces on the slide.
  • the relay 1 can be seen in an end view, the armature 3 abutting the actuating element 2 and the actuating element 2 itself with retaining pins 15, 16, which form a slot 17 between them according to Figure 2, the contact springs 13, 14, which the wear movable contacts 4.5, embraces.
  • the movable contacts 4, 5 are assigned to a contact arrangement 6, 7 of the relay and are opposed to fixed contacts, not specified.
  • the actuating element 2 guides the movable contacts 4, 5 on the holding pins 15, 16 in the region of a triangular bearing acting from above and below against the contact springs 13, 14, with a knife-like bearing 18 of the actuating element 2 on the movable contacts 4 according to FIG. 5 is formed.
  • the link 8 furthermore has semicircular recesses 10, 11 offset obliquely to the longitudinal axis, it being apparent from FIG. 2 that when the contact arrangement 7 is welded, the actuating element is pivoted about the welding point and the link is pivoted out of the plane of symmetry and the recess 10 of the backdrop is supported on the peg-shaped element 9, this element 9 being encompassed in a semicircle.
  • the actuating element 2 directly surrounds the movable contact 4, 5, an embodiment is provided in accordance with FIGS. 3 and 4, where the actuating element 2 contacts 4 and 5 via an intermediate member 19, e.g. detected by a slide, the slide carrying the movable contacts 4 and 5.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Breakers (AREA)
  • Relay Circuits (AREA)
EP90124671A 1990-02-03 1990-12-19 Wiedereinschaltsperre bei einem Relais Expired - Lifetime EP0440953B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90124671T ATE104467T1 (de) 1990-02-03 1990-12-19 Wiedereinschaltsperre bei einem relais.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4003295 1990-02-03
DE4003295A DE4003295A1 (de) 1990-02-03 1990-02-03 Wiedereinschaltsperre bei einem relais

Publications (3)

Publication Number Publication Date
EP0440953A2 EP0440953A2 (de) 1991-08-14
EP0440953A3 EP0440953A3 (en) 1992-08-05
EP0440953B1 true EP0440953B1 (de) 1994-04-13

Family

ID=6399420

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90124671A Expired - Lifetime EP0440953B1 (de) 1990-02-03 1990-12-19 Wiedereinschaltsperre bei einem Relais

Country Status (3)

Country Link
EP (1) EP0440953B1 (enrdf_load_stackoverflow)
AT (1) ATE104467T1 (enrdf_load_stackoverflow)
DE (2) DE4003295A1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2004212581B2 (en) * 2000-05-11 2006-01-19 Moeller Gebaudeautomation Kg An electromechanical remote switch
AT412433B (de) * 2000-05-11 2005-02-25 Felten & Guilleaume Kg Elektromechanischer fernschalter

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE511582C (de) * 1929-05-25 1930-10-31 Ver Eisenbahn Signalwerke G M Sicherungseinrichtung an eingleisigen Strecken, im besonderen fuer UEberwege
DE2440361B2 (de) * 1974-08-23 1977-01-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Mechanische verriegelung von beweglichen teilen
US4003010A (en) * 1975-12-02 1977-01-11 The Singer Company Latch relay
DE2951356C2 (de) * 1979-12-20 1985-05-09 Brown, Boveri & Cie Ag, 6800 Mannheim Vorrichtung zur mechanischen Einschaltsperrung eines von zwei Schaltorganen, solange sich das andere Schaltorgan in eingeschalteter Stellung befindet
DE3213477A1 (de) * 1982-04-10 1983-10-13 Brown, Boveri & Cie Ag, 6800 Mannheim Verriegelungsvorrichtung fuer elektrische schaltorgane
DE3432230A1 (de) * 1984-09-01 1986-03-13 AKO-Werke GmbH & Co KG, 7988 Wangen Wiedereinschaltsperre von relais bzw. kontaktanordnungen mit 2 schliesskontakten
JPS6179433U (enrdf_load_stackoverflow) * 1984-10-31 1986-05-27
DE3506857A1 (de) * 1985-02-27 1986-08-28 W. Gruner GmbH Relaisfabrik, 7209 Wehingen Elektrische schaltvorrichtung
DE3602692A1 (de) * 1986-01-30 1987-08-06 Ako Werke Gmbh & Co Wiedereinschaltsperre eines relais

Also Published As

Publication number Publication date
DE59005366D1 (de) 1994-05-19
ATE104467T1 (de) 1994-04-15
DE4003295C2 (enrdf_load_stackoverflow) 1991-12-19
EP0440953A2 (de) 1991-08-14
EP0440953A3 (en) 1992-08-05
DE4003295A1 (de) 1991-08-14

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