WO1997044799A1 - Sectionneur de puissance basse tension pourvu d'un porte-contact - Google Patents

Sectionneur de puissance basse tension pourvu d'un porte-contact Download PDF

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Publication number
WO1997044799A1
WO1997044799A1 PCT/DE1997/001042 DE9701042W WO9744799A1 WO 1997044799 A1 WO1997044799 A1 WO 1997044799A1 DE 9701042 W DE9701042 W DE 9701042W WO 9744799 A1 WO9744799 A1 WO 9744799A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit breaker
pole insulating
contact
voltage circuit
insulating body
Prior art date
Application number
PCT/DE1997/001042
Other languages
German (de)
English (en)
Inventor
Sezai Tuerkmen
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO1997044799A1 publication Critical patent/WO1997044799A1/fr

Links

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 low-voltage circuit breaker with a switch contact system, consisting of a fixed switch contact and a movable switch contact, the movable switch contact having a contact carrier for contact levers and the contact carrier comprising a bearing body and a pole insulating body connected thereto can be connected to a drive device of the circuit breaker by means of a coupling rod.
  • a circuit breaker of this type is - with the exception of the subdivision of the contact carrier into the bearing body and
  • the pole insulating body has the task of ensuring the electrical insulation between the movable switching contact and the drive device.
  • the pole insulating body makes it possible to design both the bearing body and the coupling rod as metal parts, regardless of electrical conductivity.
  • the object of the invention is to simplify the assembly of the contact carrier.
  • this object is achieved in that the bearing body and the pole insulating body are positively connected and in that the positive locking can be produced or canceled by a relative displacement of the bearing body and the pole insulating body parallel to the pivot axis of the movable switching contact.
  • the coupling pin has an approximately mushroom-shaped cross section and the recess of the bearing body for the insertion of the coupling pin is designed to be open on both sides. In this way, the coupling pin has an approximately mushroom-shaped cross section and the recess of the bearing body for the insertion of the coupling pin is designed to be open on both sides. In this way, the
  • the entire width of the support body can be used for receiving the coupling pin
  • the pole insulating body can have at least one resilient latching tongue and the bearing body can have a counter surface for interacting with the latching tongue.
  • This version is particularly suitable for switch contact systems with one-piece
  • the pole insulating body additionally has a clamping tongue arranged opposite the latching tongue, which has a stop lug at its end as a limitation of the displacement path when the bearing body and the pole insulating body are joined together.
  • FIG. 1 shows a perspective view of a schematically simplified three-pole low-voltage circuit breaker.
  • FIG. 2 shows a section through the circuit breaker according to FIG. 1.
  • FIG. 3 is an enlarged view of a movable switch contact of the circuit breaker shown in FIGS. 1 and 2, partial areas being shown in section.
  • FIG. 4 shows a supporting body and a pole insulating body in a section IV-IV according to FIG. 3. The same parts, but in a separate state, are shown in FIG. 5.
  • the low-voltage circuit breaker 1 shown in FIG. 1 has a three-pole design and is connected to vertical busbars 2 by connecting rails arranged on the rear and therefore not visible in FIG.
  • the circuit breaker 1 has a housing 3 with a control panel 4 on the front.
  • a control panel 4 In the middle of the control panel 4 there are push buttons 5 for the control of the ON and OFF switching and display elements 6 which indicate the switching position and the state of an energy store.
  • the left part of the control panel 4 is occupied by an electronic trigger 7, while on the right side of the control panel 4 there is an elevator lever 10 for tensioning the aforementioned energy store by hand.
  • each of the poles of the circuit breaker 1 has a switch contact system 11, which includes a fixed switch contact 12 and a movable switch contact 13.
  • the fixed switch contact 12 is with an upper
  • Connection rail 14 in connection which protrudes from the housing 3 on the rear side of the circuit breaker 1 in the manner already mentioned and can be connected to a further busbar (eg busbar 2 in FIG. 1).
  • the movable switching contact 13 comprises one or more contact levers 15 which are pivotably attached to a contact carrier 16 and are connected by a flexible conductor 17 to a lower connecting rail 20 which also protrudes from the housing 3.
  • the contact carrier 16 is pivotally mounted in the housing 3 in a manner not shown and can be actuated by a drive device 21 by means of a coupling rod 22 in such a way that the contact lever (s) 15 can be placed on the fixed switching contact 12 or can be separated therefrom.
  • a switching shaft 23 belonging to the drive device 21 is common to all poles of the circuit breaker 1.
  • An arc quenching chamber 18 is located above the switch contact system 11.
  • the contact carrier 16 consists of a carrier body 24 and a pole insulating body 25.
  • the carrier body 24 is a molded part made of metal, for. B. die-cast aluminum or a stamped and bent part.
  • the pole insulating body 25 is a molded part made of electrically insulating
  • Lateral cheeks 26 of the one-piece support body 24 receive the ends of a bearing pin 27, on which a plurality of contact levers 15 are preferably pivotally mounted.
  • Contact force springs engage on the back of the contact lever 15 28 on, which are arranged in pockets 30 of the pole insulating body 25.
  • the support body 24 is pivotable about trunnions 29 which are arranged on the outside of the cheeks 26 near their lower ends.
  • the support body 24 and the pole insulating body 25 are in positive engagement with one another.
  • the pole insulating body 25 is approximately mushroom-shaped in cross section, ie. H.
  • Coupling pin 31 designed with two undercuts, while the support body 24 has a recess 32 adapted to the coupling pin 31.
  • the transmission of the abruptly acting pressure forces when switching on is carried out by the relatively large contact surfaces of the support body 24 and the pole insulation body 25, namely a back surface 33 of the support body 24 and an inner surface 34 of the pole insulation body 25. This also overlaps with an upper collar 35 and a lower collar 36 Support body 24 in such a way that no bending forces can act on the coupling pin 31.
  • connection of the pole insulating body 25 to the drive device 21 by means of a coupling rod 22 is indicated by dash-dotted lines in FIG. 3.
  • the pole insulating body 25 has a rear-side bearing pocket 37 for the articulated engagement of the coupling rod 22 or a multiple arrangement of such coupling rods.
  • the section IV-IV shown in FIG. 4 in FIG. 3 illustrates the interlocking engagement of the support body 24 and the pole insulating body 25 in the region of the coupling pin 31 and the recess 32.
  • Special features are shown as a resilient latching tongue 37 with a latching lug 40, which cooperates with a lateral counter surface 41 of the supporting body 24.
  • the detent 40 on the pole insulating body 25 first meets with an outer sliding bevel 45 against the stop surface 44 on the supporting body 24 and is displaced inward so that the supporting body 24 and the pole insulating body 25 can now be pushed together. If the position of the parts according to FIG.
  • the locking lug 40 jumps due to the springing of the locking tongue 37 over the counter surface 41, while at the same time the stop lug 43 comes to rest against the stop surface 44 and thus the relative displacement of the support body 24 and the pole insulating body 25 is limited.
  • the cohesion of support body 24 and pole insulating body 25 is thus ensured without the use of separate securing elements.
  • the support body 24 and the pole insulating body 25 can be separated again by the latch 40 pushed back by means of a suitable tool and thus the relative displacement of the said body against the

Landscapes

  • Breakers (AREA)
  • Relay Circuits (AREA)

Abstract

L'invention concerne un sectionneur de puissance basse-tension (1) qui comporte un système à contact de commutation (11) dont le contact de commutation mobile (13) est pourvu d'un porte-contact (16) associé à un levier à contact (15). Le porte-contact (16) comprend un corps de support (24) constitué de métal et un corps d'isolation de pôle (25) qui peut être actionné, au moyen d'une bielle (22), par un dispositif d'entraînement (21). Le corps d'isolation de pôle (25) s'engage, avec un téton d'accouplement (31), dans une cavité (32) du corps de support (24), ces deux corps étant ainsi assemblés par liaison de forme. Le corps de support (24) et le corps d'isolation de pôle (25) peuvent être reliés ou séparés par un déplacement relatif se faisant parallèlement à l'axe de pivotement du contact de commutation (13) mobile. L'agencement décrit permet de réaliser la liaison entre le corps de support (24) et le corps d'isolation de pôle (25) sans avoir à utiliser les vis qui étaient, jusqu'à maintenant, nécessaires.
PCT/DE1997/001042 1996-05-21 1997-05-16 Sectionneur de puissance basse tension pourvu d'un porte-contact WO1997044799A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29609824U DE29609824U1 (de) 1996-05-21 1996-05-21 Niederspannungs-Leistungsschalter mit einem Kontaktträger
DE29609824.8 1996-05-21

Publications (1)

Publication Number Publication Date
WO1997044799A1 true WO1997044799A1 (fr) 1997-11-27

Family

ID=8024729

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1997/001042 WO1997044799A1 (fr) 1996-05-21 1997-05-16 Sectionneur de puissance basse tension pourvu d'un porte-contact

Country Status (2)

Country Link
DE (1) DE29609824U1 (fr)
WO (1) WO1997044799A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19910172B4 (de) * 1999-02-24 2006-07-06 Siemens Ag Leistungsschalter mit strombegrenzender Öffnung von Schaltkontakten
DE10149020C1 (de) * 2001-09-28 2003-01-16 Siemens Ag Kontaktanordnung für Niederspannungs-Schaltgeräte
DE10148947C1 (de) * 2001-09-28 2003-02-13 Siemens Ag Schaltkontaktanordnung eines Niederspannungs-Leistungsschalters

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1909358U (de) * 1964-11-11 1965-02-04 Stotz Kontakt Gmbh Schalter mit einer haltevorrichtung am kontakttraeger fuer einen mit einer kontaktdruckfeder zusammenarbeitenden kontaktfinger.
DE1538013A1 (de) * 1965-02-26 1969-10-23 Reinhausen Maschf Scheubeck Auswechselbarer Schaltkontakt mit gleichfalls auswechselbarer Schaltkammer fuer Lastumschalter von Stufenschaltern bei Regeltransformatoren
EP0639846A1 (fr) * 1993-08-19 1995-02-22 ABBPATENT GmbH Arbre de commande pour un interrupteur d'installation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1388664A (fr) * 1963-06-27 1965-02-12 Comp Generale Electricite Dispositif à fermeture indépendante pour appareils électriques

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1909358U (de) * 1964-11-11 1965-02-04 Stotz Kontakt Gmbh Schalter mit einer haltevorrichtung am kontakttraeger fuer einen mit einer kontaktdruckfeder zusammenarbeitenden kontaktfinger.
DE1538013A1 (de) * 1965-02-26 1969-10-23 Reinhausen Maschf Scheubeck Auswechselbarer Schaltkontakt mit gleichfalls auswechselbarer Schaltkammer fuer Lastumschalter von Stufenschaltern bei Regeltransformatoren
EP0639846A1 (fr) * 1993-08-19 1995-02-22 ABBPATENT GmbH Arbre de commande pour un interrupteur d'installation

Also Published As

Publication number Publication date
DE29609824U1 (de) 1997-07-24

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