EP1298684B1 - Arrangement des contacts pour un interrupteur électrique à basse tension - Google Patents

Arrangement des contacts pour un interrupteur électrique à basse tension Download PDF

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Publication number
EP1298684B1
EP1298684B1 EP20020090330 EP02090330A EP1298684B1 EP 1298684 B1 EP1298684 B1 EP 1298684B1 EP 20020090330 EP20020090330 EP 20020090330 EP 02090330 A EP02090330 A EP 02090330A EP 1298684 B1 EP1298684 B1 EP 1298684B1
Authority
EP
European Patent Office
Prior art keywords
contact
contour
levers
lever
mount
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 - Fee Related
Application number
EP20020090330
Other languages
German (de)
English (en)
Other versions
EP1298684A1 (fr
Inventor
Michael Bach
Detlev Schmidt
Guenter Seidler-Stahl
Ingo Thiede
Sezai Tuerkmen
Artur Wajnberg
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 EP1298684A1 publication Critical patent/EP1298684A1/fr
Application granted granted Critical
Publication of EP1298684B1 publication Critical patent/EP1298684B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars

Definitions

  • the invention relates to a contact arrangement for low-voltage switchgear having a plurality of contact levers arranged parallel to one another on the contact levers, which are pivotable relative to the contact carrier by means of a contact lever passing through, supported on the contact carrier
  • the object of the present invention is to provide a contact arrangement with several parallel pivotable contact levers, which is mechanically and electrically resistant to stresses caused by high currents, in which the contact levers are freely movable in normal switching operation.
  • the contact lever on the bearing pin are freely movable. Only with a strong stress by contact-lifting forces and a corresponding load on the bearing pin set the contact lever with their cylindrical contours on the contact carrier. The bending of the bearing pin is limited to the certain by the design of the cooperating parts measure. Damage to the contact arrangement are thereby effectively prevented.
  • the radius of the mating contour on the contact carrier is dimensioned slightly larger than the radius of the cylindrical contours of the contact lever.
  • FIG. 1 shows a view of a contact carrier from the drive side, where it is equipped for simplicity only with one contact lever with precontact and a contact lever without precontact.
  • FIG. 2 shows a sectional view of the contact carrier according to the Fig. 1 along the line AA in Fig. 1 ,
  • FIG. 3 shows a sectional view of the contact carrier according to the Fig.1 along the line BB in Fig. 1 ,
  • FIG. 4 shows the detail Z from the Fig. 2 .
  • FIG. 5 shows the detail Y out Fig. 3 .
  • FIG. 6 shows a perspective view of a contact carrier according to the invention without contact lever from the contact side.
  • FIG. 7 shows a perspective view of the detail X from Fig. 6 .
  • the FIG. 1 shows a view of a contact carrier 1 from the drive side.
  • the contact carrier 1 is equipped with only one contact lever with precontact 2 and a contact lever without Vor animation 3.
  • the contact lever with Vor animation in a conventional manner 2 arranged in the central region of the contact carrier 1 and the contact lever without Vorcard 3 in the outer region of the arrangement.
  • the contact lever 2, 3 are in the on state of the low-voltage circuit breaker in an electrically conductive connection to the upper terminal rail 4 of the low-voltage circuit breaker and are by means of flexible conductor cables 5; 6 connected to the lower terminal rail 7 of the low-voltage circuit breaker.
  • the contact carrier 1 is by means of its on the side parts 8; 9 of the contact carrier 1 provided bearing pin 10, 11 pivotally arranged in the switching pole of the low-voltage circuit breaker.
  • FIG. 2 shows a sectional view of the contact carrier according to the Fig. 1 along the line AA in Fig. 1 ,
  • the current path of the low-voltage circuit breaker in the contact lever with Vor animation 2 can be seen, which by its upper connecting rail 4, the contact lever with VorAND 2, which also has an arcing horn 12, the flexible conductor cables 5 and the lower connecting rail 7 of the low-voltage Circuit breaker is formed.
  • the contact lever with precontact 2 is pressed by means of the contact carrier 1 mounted in the contact force springs 13 against the located on the upper connecting rail 4 fixed contact 14.
  • the contact lever 2 sets at a deflection of the bearing pin 15 with its cylindrical contour 16 on the formed as a shell-like increase on the contact carrier 1 counter-contour 17, whereby further deflection of the bearing pin 15 is prevented with the possible consequences described above.
  • FIG. 3 shows a sectional view of the contact carrier 1 according to the Fig. 1 along the line BB in Fig. 1 ,
  • the current path of the low-voltage circuit breaker in the region of a contact lever 3 can be seen, which is formed without Vorking.
  • Flexible conductor cables 6 and the lower connection rail 7 of the low-voltage circuit breaker and contact force springs 13 are also recognizable.
  • the externally arranged in the contact carrier 1 contact lever 3 are provided in the present embodiment for reasons of at least partially uniform production with the contact levers 2 (with Vor animation) also with a cylindrical contour 18, but this contact levers 3 is no corresponding half-shell-like increase in the contact carrier 1 against.
  • FIG. 4 shows the detail Z from the Fig. 2 ,
  • the cylindrical contour 16 of the contact lever 2 and the corresponding curved counter-contour 17 in the form of a half-shell-like increase on the contact carrier 1 with a slightly larger radius than that of the cylindrical contour 16 of the contact lever 2 are without load with a distance A of a few tenths mm opposite.
  • the distance A should be, for example, 0.2 mm.
  • FIG. 5 shows the detail Y out Fig. 3
  • the cylindrical contour 18 of the contact lever 3 is not a correspondingly curved counter contour in the form of a half-shell-like increase on the contact carrier 1 with respect.
  • This embodiment of the contact carrier 1 is then advisable to choose when only a central support of the outside in the side cheeks of the contact carrier in receiving openings bearing bearing bolt 15 is considered sufficient by the cylindrical contour of the contact lever 2 on the mating contour 17.
  • FIG. 6 shows a perspective view of a movable contact carrier 1 according to the invention for a low-voltage circuit breaker without contact lever from the contact side, through which the position of the formed as a half-shell-like increase on the contact carrier 1 counter-contour 17 is to be illustrated.
  • the contact carrier 1 consists of a plastic body 20, on whose legs 21, 22 bearing journals 23, 24 are arranged, by means of which the contact carrier 1 is pivotally mounted in the housing of the circuit breaker is. It has receiving openings 25 as a holder for the bearing pin 15 for the contact lever 2 and 3. Furthermore, receiving openings 26 for the contact force springs 13 can be seen.
  • the formed as a half-shell-like increase in the contact carrier 1 counter-contour 17 is provided in the illustrated embodiment of the contact carrier 1 only centrally, namely where the strongest bending stress of the bearing pin 15 occurs.
  • FIG. 7 shows a perspective view of the detail X from Fig. 6 ,
  • the formed as a half-shell-like increase on the contact carrier 1 counter contour 17 simultaneously forms a kind of rib 27, which forms a reinforced region of the contact carrier 1.
  • a good and secure support is achieved.

Landscapes

  • Breakers (AREA)
  • Contacts (AREA)

Claims (4)

  1. Dispositif de contact pour des appareil de commutation de basse tension ayant plusieurs leviers ( 2, 3 ) de contact montés parallèlement les uns aux autres sur un porte contact ( 1 ) et pouvant pivoter par rapport au porte contact ( 1 ) au moyen d'un axe ( 15 ) de palier traversant les leviers ( 2, 3 ) de contact et s'appuyant sur le porte contact ( 1 ),
    dans lequel au moins certains des leviers ( 2, 3 ) de contact ont, du côté tourné vers le porte contact ( 1 ) dans la zone du point de palier formé par l'axe ( 15 ) de palier, un contour ( 16 ) cylindrique s'étendant coaxialement autour de l'axe de l'axe ( 15 ) de palier, le porte contact ( 1 ) ayant à l'endroit de ces contours ( 16 ) cylindriques un contour ( 17 ) antagoniste adapté,
    caractérisé en ce que,
    le contour ( 17 ) antagoniste est disposé de façon opposée à une distance ( A ) minimum aux contours ( 16 ) des leviers ( 2, 3 ) de contact.
  2. Dispositif suivant la revendication 1,
    caractérisé en ce que,
    rayon du contour ( 17 ) antagoniste constitué sous la forme d'une surface d'appui élevée de type hémicoquille est plus grand de peu que le rayon du contour ( 16 ) cylindrique et s'étendant coaxialement autour de l'axe de l'axe ( 15 ) du palier, des leviers ( 2, 3 ) de contact.
  3. Dispositif suivant la revendication 1 ou 2,
    caractérisé en ce que,
    seuls les leviers ( 2 ) de contact disposés à peu près au milieu dans le porte contact ( 1 ) du côté tourné vers le porte contact ( 1 ) dans la zone du point de palier formé par l'axe ( 15 ) de palier ont un contour ( 16 ) cylindrique s'étendant coaxialement autour de l'axe de l'axe ( 15 ) de palier.
  4. Dispositif suivant la revendication 3,
    caractérisé en ce que,
    seul un contour antagoniste ( 17 ) est disposé sur le porte contact ( 1 ) opposé au levier ( 2 ) de contact muni d'un contour ( 16 ) cylindrique.
EP20020090330 2001-09-28 2002-09-13 Arrangement des contacts pour un interrupteur électrique à basse tension Expired - Fee Related EP1298684B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10149020 2001-09-28
DE2001149020 DE10149020C1 (de) 2001-09-28 2001-09-28 Kontaktanordnung für Niederspannungs-Schaltgeräte

Publications (2)

Publication Number Publication Date
EP1298684A1 EP1298684A1 (fr) 2003-04-02
EP1298684B1 true EP1298684B1 (fr) 2009-01-07

Family

ID=7701407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020090330 Expired - Fee Related EP1298684B1 (fr) 2001-09-28 2002-09-13 Arrangement des contacts pour un interrupteur électrique à basse tension

Country Status (2)

Country Link
EP (1) EP1298684B1 (fr)
DE (2) DE10149020C1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10344652A1 (de) * 2003-09-25 2005-04-28 Siemens Ag Niederspannungs-Leistungsschalter mit radialer Kontaktbewegung durch Integration der Kontaktträger in die Schaltwelle
US6977568B1 (en) * 2005-01-13 2005-12-20 Eaton Corporation Blow open moving contact assembly for electric power switching apparatus with a very high current interruption rating

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0225207B1 (fr) * 1985-10-31 1991-05-15 Merlin Gerin Chaîne cinématique de transmission entre le mécanisme de commande et les pôles d'un disjoncteur électrique à boîtier isolant moulé
DE29609824U1 (de) * 1996-05-21 1997-07-24 Siemens AG, 80333 München Niederspannungs-Leistungsschalter mit einem Kontaktträger
DE19629482C1 (de) * 1996-07-12 1997-09-11 Siemens Ag Schaltkontaktanordnung mit einer Gelenkanordnung für einen Kontakthebel
US6005206A (en) * 1998-05-07 1999-12-21 Eaton Corporation Electrical switching apparatus with improved contact arm carrier arrangement

Also Published As

Publication number Publication date
DE50213195D1 (de) 2009-02-26
EP1298684A1 (fr) 2003-04-02
DE10149020C1 (de) 2003-01-16

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