EP0017814B1 - Dispositif pour convertir un ensemble de contact inverseur - Google Patents

Dispositif pour convertir un ensemble de contact inverseur Download PDF

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Publication number
EP0017814B1
EP0017814B1 EP80101603A EP80101603A EP0017814B1 EP 0017814 B1 EP0017814 B1 EP 0017814B1 EP 80101603 A EP80101603 A EP 80101603A EP 80101603 A EP80101603 A EP 80101603A EP 0017814 B1 EP0017814 B1 EP 0017814B1
Authority
EP
European Patent Office
Prior art keywords
push rod
contact member
normally open
open contact
plunger
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
Application number
EP80101603A
Other languages
German (de)
English (en)
Other versions
EP0017814A1 (fr
Inventor
Albert Warnest
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
Publication of EP0017814A1 publication Critical patent/EP0017814A1/fr
Application granted granted Critical
Publication of EP0017814B1 publication Critical patent/EP0017814B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/223—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with bimetal elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H2071/109—Operating or release mechanisms with provisions for selecting between automatic or manual reset

Definitions

  • the invention relates to a device for converting a contact arrangement for a thermally operating protective relay from self-locking to automatic resetting by adjusting the closer contact piece via a plunger separate from it and with means for cancellation, consisting of a normally open contact piece, a normally closed contact piece and a changeover contact piece self-locking by moving the elastically flexible closer contact piece in the closing direction through the plunger, which is freely displaceable against spring force and lockable by twisting in the position for automatic resetting.
  • the additional return spring for the plunger can be omitted and no separate parts are required for locking the plunger in the position for automatic resetting.
  • the introduction of the plunger is considerably simplified if the at least partially longitudinally slotted plunger is provided with a barb on a spring strut formed thereby, which limits the upper end position of the plunger in both rotational positions. The provision of this barb on the plunger requires practically no additional effort in the manufacture of the plunger.
  • the plunger is provided with a screwdriver slot; because here the specialist has to consciously use a tool in order to be able to make a change.
  • the thermal protection relay shown in FIG. 1 a so-called bimetal relay, consists of the housing 1, in the base part 2 of which the bimetal strips 3 are accommodated with the release slides (not shown in more detail), which are attached in a known manner to those in the upper part 4 of the housing 1 Act contact arrangement 5.
  • the contact arrangement 5 in the present exemplary embodiment consists of the make contact piece 6 with the connection bracket 7 and the connection screw 8, which can be held in an open position by a cover 9 which is snapped onto the upper part 4 of the housing 1.
  • the changeover contact piece 10 is guided via the connection bracket 11 to the connection screw 12, which is also held by the cover 9. In the present case, the changeover contact piece 10 works together with the make contact piece 6.
  • the rocker 13 can also be connected to voltage and provided with the contact piece 15, which cooperates with the fixed contact part 16 of the break contact.
  • the closer contact piece 6 is designed as a contact spring and brings the plunger 17, which is displaceably mounted in the housing 1, with the barb 18 to the stop 19 of the housing 1.
  • the barb 18 is provided on the strut 21 formed by the slot 20 and projects beyond the contour 22 of the otherwise cylindrical plunger.
  • the plunger also has, as shown in FIGS. 3 to 5, a screwdriver slot 23 on its end face and on the enlarged cylindrical part 24 shoulders 25 which protrude into adapted recesses 26 in the cover 9 in order to prevent the plunger 17 from rotating automatically.

Landscapes

  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Electromagnets (AREA)

Claims (5)

1. Dispositif pour convertir un dispositif à contact constitué par une pièce de contact de travail auxiliaire (6) montée élastiquement dans le boîtier (1), un contact de repos auxiliaire et un contact inverseur (10), pour un relais de protection thermique, du mode auto-verrouillage au mode réarmement automatique par déplacement de la pièce de contact de travail auxiliaire (6) par l'intermédiaire d'un poussoir (17) séparé de ce dernier, et comportant des moyens pour supprimer le verrouillage automatique par déplacement de la pièce de contact de travail auxiliaire flexible (6) en direction de la fermeture au moyen du poussoir (17) monté de manière à être librement déplacé à l'encontre de la force d'un ressort élastique et pouvant être bloqué par rotation dans la position de réarmement automatique, caractérisé en ce que le poussoir (17) est monté de façon à pouvoir être déplacé suivant la direction de flexion de la pièce de contact de travail (6) et peut être bloqué transversalement par rapport à cette direction.
2. Dispositif selon la revendication 1, caractérisé en ce que le poussoir (17) fendu au moins partiellement suivant la direction longitudinale est muni, au niveau d'une jambe de force à ressort (21) ainsi formée, d'un crochet (18) qui, dans les deux positions de rotation, limite la position finale supérieure du poussoir (17).
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le poussoir (17) est muni d'une fente à tournevis (23).
4. Dispositif selon la revendication 2 ou 3, caractérisé en ce que, lorsque le poussoir (17) se trouve dans la position de réarmement automatique, le crochet (18) est appliqué élastiquement et transversalement par rapport à la direction longitudinale du poussoir, contre des parties de la paroi du boîtier.
5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que le poussoir (17) est pourvu d'appendices saillants (25) disposés radialement et qui, dans la position de rappel manuel, et le poussoir (17) étant dans sa position non actionnée, s'engagent dans des évidements adaptés (26) d'un capot (9) à encliquetage pour les bornes de raccordement (8, 12) de l'appareil.
EP80101603A 1979-04-11 1980-03-26 Dispositif pour convertir un ensemble de contact inverseur Expired EP0017814B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2914775A DE2914775B1 (de) 1979-04-11 1979-04-11 Einrichtung zum Umstellen einer Umschaltkontaktanordnung
DE2914775 1979-04-11

Publications (2)

Publication Number Publication Date
EP0017814A1 EP0017814A1 (fr) 1980-10-29
EP0017814B1 true EP0017814B1 (fr) 1983-05-18

Family

ID=6068129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80101603A Expired EP0017814B1 (fr) 1979-04-11 1980-03-26 Dispositif pour convertir un ensemble de contact inverseur

Country Status (8)

Country Link
US (1) US4315233A (fr)
EP (1) EP0017814B1 (fr)
JP (1) JPS55146832A (fr)
AR (1) AR218198A1 (fr)
BR (1) BR8002175A (fr)
DE (2) DE2914775B1 (fr)
ES (1) ES490433A0 (fr)
IN (1) IN152093B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3305646C2 (de) * 1982-06-22 1986-07-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Thermisches Überstromrelais
EP0097344B1 (fr) * 1982-06-22 1991-04-17 Licentia Patent-Verwaltungs-GmbH Relais thermique à courant excessif
US6025766A (en) * 1997-04-11 2000-02-15 Siemens Energy & Automation, Inc. Trip mechanism for an overload relay
US5994987A (en) * 1998-05-15 1999-11-30 Siemens Energy & Automation, Inc. Contact mechanism for electronic overload relays
US5910759A (en) * 1998-05-15 1999-06-08 Siemens Energy & Automation, Inc. Contact mechanism for electronic overload relays
CN101494136B (zh) * 2009-03-09 2011-01-26 沈阳斯沃电器有限公司 接触器用自锁装置
JP4798243B2 (ja) * 2009-03-27 2011-10-19 富士電機機器制御株式会社 熱動形過負荷継電器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1563670B2 (de) * 1966-03-10 1973-07-12 Einrichtung zum einstellen einer umschaltkontaktanordnung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1400470A (en) * 1920-03-01 1921-12-13 Harvey Frost & Co Ltd Electrical cut-out
GB609143A (en) * 1946-03-06 1948-09-27 Crabtree & Co Ltd J A Improvements in and relating to the trip mechanism of automatic circuit breakers andsimilar electrical switchgear
GB674084A (en) * 1949-07-21 1952-06-18 Crabtree & Co Ltd J A Improvements in electrically tripped switches
US3183328A (en) * 1963-04-08 1965-05-11 Gen Electric Electric switch with contact weld check means
DE1199381B (de) * 1964-06-05 1965-08-26 Siemens Ag Kontaktvorrichtung fuer vorzugsweise mehrphasige Bimetallrelais
GB1250773A (fr) * 1968-11-23 1971-10-20
DE1953984C3 (de) * 1969-10-27 1973-01-04 Ellenberger & Poensgen Gmbh, 8503 Altdorf Druckknopfbetätigter Schalter
FR2067954A5 (fr) * 1969-11-20 1971-08-20 Crouzet & Cie
GB1399401A (en) * 1972-01-11 1975-07-02 Cutler Hammer Inc Electric switches
CH577748A5 (fr) * 1973-07-31 1976-07-15 Ellenberger & Poensgen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1563670B2 (de) * 1966-03-10 1973-07-12 Einrichtung zum einstellen einer umschaltkontaktanordnung

Also Published As

Publication number Publication date
US4315233A (en) 1982-02-09
JPS55146832A (en) 1980-11-15
AR218198A1 (es) 1980-05-15
DE7910663U1 (de) 1983-12-08
IN152093B (fr) 1983-10-15
DE2914775B1 (de) 1980-07-17
ES8101318A1 (es) 1980-12-01
EP0017814A1 (fr) 1980-10-29
BR8002175A (pt) 1980-11-25
ES490433A0 (es) 1980-12-01

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