WO1997033290A2 - Interrupteur de puissance avec support de levier de contact isolant - Google Patents

Interrupteur de puissance avec support de levier de contact isolant Download PDF

Info

Publication number
WO1997033290A2
WO1997033290A2 PCT/DE1997/000436 DE9700436W WO9733290A2 WO 1997033290 A2 WO1997033290 A2 WO 1997033290A2 DE 9700436 W DE9700436 W DE 9700436W WO 9733290 A2 WO9733290 A2 WO 9733290A2
Authority
WO
WIPO (PCT)
Prior art keywords
bearing pin
contact
locking
contact lever
lever carrier
Prior art date
Application number
PCT/DE1997/000436
Other languages
German (de)
English (en)
Other versions
WO1997033290A3 (fr
Inventor
Sezai TÜRKMEN
Ulrich Marquardt
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
Priority to EP97915338A priority Critical patent/EP0885449B1/fr
Priority to DE59700394T priority patent/DE59700394D1/de
Publication of WO1997033290A2 publication Critical patent/WO1997033290A2/fr
Publication of WO1997033290A3 publication Critical patent/WO1997033290A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/48—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring

Definitions

  • the invention relates to an electrical circuit breaker with a movable contact arrangement and with a drive device which actuates the contact arrangement for switching on and off and which is articulatedly connected to the contact arrangement by a drive lever, a transverse bore for receiving a the drive lever in an insulating contact lever carrier of the contact arrangement is arranged with the contact arrangement connecting bearing pin and the bearing pin is secured against removal from the transverse bore by a locking screw.
  • a circuit breaker with the features mentioned has become known essentially from DE 44 16 105 Cl.
  • the locking screw is in a conductive connection with the bearing pin. This not only includes the bearing pin in contact with the drive lever, but also the one
  • the object of the invention is to increase the dielectric strength of the movable contact arrangement and thereby to improve the security against electrical errors for given dimensions.
  • the above object is achieved in that an axially blocking the bearing bolt, consisting of insulating plastic on the contact lever carrier Locking piece is attached by means of the locking screw.
  • a further dielectric improvement can be achieved in that the locking screw engages in a receiving opening arranged at right angles to the transverse bore and ends at a distance from the bearing pin. In contrast to the previous design of the contact lever carrier, the screw therefore no longer acts as an electrode at earth potential.
  • the locking piece for the bearing pin can be designed as a protective element for covering an assembly opening of the contact lever carrier which provides access to the head piece of the bearing pin. This measure also works in the sense of increasing the creepage distances.
  • the locking piece can have a rib for mutual support of a locking web located in front of the head piece of the bearing pin and a locking leg filling the assembly opening.
  • the rib acts as a stiffener and therefore allows the locking piece to be manufactured as a light plastic molded part.
  • Figure 1 shows a schematic representation
  • FIG. 2 shows a contact lever support shown in FIG. 1 on a larger scale and partly in section.
  • FIG. 3 is an illustration of section III-III in FIG. 2.
  • the low-voltage circuit breaker 1 shown schematically in FIG. 1 has a movable contact arrangement 2, which includes a connecting bar 3, flexible current strips 4 and at least one movable contact lever 5.
  • a contact lever carrier 6 can be pivoted by a drive device 7, a shift shaft 10 actuated thereby and drive lever 11 for switching on and off.
  • the movable contact lever 5 cooperates with a stationary counter contact 12 which is connected to a further connecting rail 13.
  • FIGS. 2 and 3 Details of the connection of the drive lever 11 to the contact lever carrier 6 are described in more detail below with reference to FIGS. 2 and 3.
  • a mounting opening 14 is shown on the top of the contact lever carrier 6, in which a locking piece 15 is located.
  • a bearing pin 17 In a transverse bore 16 of the contact lever carrier 6 there is a bearing pin 17 which passes through a bearing opening of the drive lever 11. It is indicated in FIG. 3 that two parallel drive levers 11 are provided for the power transmission to the contact lever carrier 6.
  • a barrier 20 of the Locking piece 15 is located in front of a head piece 21 of the
  • Bearing pin 17 and secures it against axial displacement in the transverse bore 16.
  • a locking screw 22 engages in a receiving opening 23 of the contact lever carrier 6 and passes through a through opening of a locking leg 24 of the locking piece 15. As can be seen in particular from FIG. 3, the locking leg 24 of the locking piece 15 fills the mounting opening 14 of the contact lever carrier 6.
  • a rib 26 extends between the locking leg 24 and the locking web 20.
  • the rib 26 lies over part of its length against a wall surface 25 of the contact lever carrier 6 delimiting the mounting opening 14. Axial forces which may arise from the bearing bolt 17 are thus introduced directly into the contact lever carrier 6, bypassing the locking screw 22.
  • connection between the contact lever carrier 6 and the drive lever 11 can be established in a simple manner by inserting the bearing bolt 17 into the transverse bore 16.
  • the assembly opening 14 is provided with a lateral mouth 27.
  • the locking piece 15 is then inserted into the mounting opening 14 from above, which is only possible if the locking bar 20 can join the head piece 21 of the bearing pin 17.
  • the locking screw 22 is also inserted into the mounting opening 14 from above.
  • the locking screw 22 is of such a length that a reaching fastening is achieved, but there is still a distance from the bearing pin 17. So that the locking screw
  • Grounding drive device 7 is.
  • Locking screw 22 can therefore not act as an electrode.

Landscapes

  • Breakers (AREA)
  • Slide Switches (AREA)

Abstract

L'invention concerne un Interrupteur de puissance (1) présentant un dispositif de contact (2) mobile et un dispositif d'entraînement (7) raccordé de façon articulée au dispositif de contact (2) par un levier d'entraînement (11). Un support de levier de contact isolant (6) du dispositif de contact (2) présente un trou transversal pour loger un boulon de palier (17) qui raccorde le levier (11) au dispositif de contact (2). Ce boulon de palier (17) peut se déplacer dans le sens axial, mais, pendant le fonctionnement de l'interrupteur de puissance (1), son déplacement est bloqué par un élément de blocage (15) réalisé en matière plastique et fixé par une vis de blocage (22) sur le support de levier de contact (6).
PCT/DE1997/000436 1996-03-08 1997-02-28 Interrupteur de puissance avec support de levier de contact isolant WO1997033290A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP97915338A EP0885449B1 (fr) 1996-03-08 1997-02-28 Interrupteur de puissance avec support de levier de contact isolant
DE59700394T DE59700394D1 (de) 1996-03-08 1997-02-28 Leistungsschalter mit isolierendem kontakthebelträger

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29605081.4 1996-03-08
DE29605081U DE29605081U1 (de) 1996-03-08 1996-03-08 Leistungsschalter mit isolierendem Kontakthebelträger

Publications (2)

Publication Number Publication Date
WO1997033290A2 true WO1997033290A2 (fr) 1997-09-12
WO1997033290A3 WO1997033290A3 (fr) 2001-09-13

Family

ID=8021325

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1997/000436 WO1997033290A2 (fr) 1996-03-08 1997-02-28 Interrupteur de puissance avec support de levier de contact isolant

Country Status (4)

Country Link
EP (1) EP0885449B1 (fr)
DE (2) DE29605081U1 (fr)
IN (1) IN191379B (fr)
WO (1) WO1997033290A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19836754B4 (de) * 1998-08-13 2006-10-05 Aeg Niederspannungstechnik Gmbh & Co Kg Schaltwelleneinheit für Schalter
DE10127552B4 (de) * 2001-06-01 2007-01-04 Siemens Ag Verfahren zur Kopplung der Schaltwelle eines Niederspannungs-Leistungsschalters mit einem bewegbaren Kontaktträger
KR200438185Y1 (ko) * 2006-12-29 2008-01-29 엘에스산전 주식회사 차단기의 부품 연결장치

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0225207A1 (fr) * 1985-10-31 1987-06-10 Merlin Gerin Chaîne cinématique de transmission entre le mécanisme de commande et les pôles d'un disjoncteur électrique à boîtier isolant moulé
DE4416105C1 (de) * 1994-04-19 1995-05-24 Siemens Ag Niederspannungs-Leistungsschalter mit einer Schaltkammer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0225207A1 (fr) * 1985-10-31 1987-06-10 Merlin Gerin Chaîne cinématique de transmission entre le mécanisme de commande et les pôles d'un disjoncteur électrique à boîtier isolant moulé
DE4416105C1 (de) * 1994-04-19 1995-05-24 Siemens Ag Niederspannungs-Leistungsschalter mit einer Schaltkammer

Also Published As

Publication number Publication date
EP0885449B1 (fr) 1999-09-01
IN191379B (fr) 2003-11-29
WO1997033290A3 (fr) 2001-09-13
DE59700394D1 (de) 1999-10-07
EP0885449A1 (fr) 1998-12-23
DE29605081U1 (de) 1996-06-05

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