EP0885449B1 - Leistungsschalter mit isolierendem kontakthebelträger - Google Patents

Leistungsschalter mit isolierendem kontakthebelträger Download PDF

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Publication number
EP0885449B1
EP0885449B1 EP97915338A EP97915338A EP0885449B1 EP 0885449 B1 EP0885449 B1 EP 0885449B1 EP 97915338 A EP97915338 A EP 97915338A EP 97915338 A EP97915338 A EP 97915338A EP 0885449 B1 EP0885449 B1 EP 0885449B1
Authority
EP
European Patent Office
Prior art keywords
bearing bolt
contact
locking
contact lever
lever carrier
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
EP97915338A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0885449A1 (de
Inventor
Sezai TÜRKMEN
Ulrich Marquardt
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP0885449A1 publication Critical patent/EP0885449A1/de
Application granted granted Critical
Publication of EP0885449B1 publication Critical patent/EP0885449B1/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
    • H01H3/32—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 Actuating contact arrangement for switching on and off Drive device with the contact arrangement by a Drive lever is articulated, being in an insulating Contact lever carrier of the contact arrangement one Cross hole for receiving the drive lever with the Contact arrangement connecting bearing pin is arranged and the bearing pin against removal from the cross hole a locking screw is secured.
  • a circuit breaker with the features mentioned is in essentially known from DE 44 16 105 C1.
  • the locking screw is conductive with the bearing pin Connection. This not only includes the one with the drive lever bearing bolts in contact, but also the Locking screw to the elements that make up the electrical field design within the contact lever carrier.
  • the invention is based on the object dielectric strength of the movable contact arrangement increase and thereby the given dimensions Improve security against electrical faults.
  • the stated object is achieved that on the contact lever carrier axially the bearing pin blocking, made of insulating plastic Locking piece is attached by means of the locking screw. To this Way, the bearing pin receiving the transverse bore Contact lever carrier with an insulating part, namely closed by the locking piece. This will make the Creepage distances on the contact lever carrier increased.
  • Another dielectric improvement can be achieved by that the locking screw in a right angle to the Transverse hole arranged engaging and in a distance from the bearing pin is arranged ending. in the Difference to the previous design of the contact lever carrier the screw therefore no longer acts on Grounded electrode.
  • the locking piece for the bearing pin can be used as a protective device Covering an access to the head of the bearing pin providing mounting opening of the contact lever carrier be. This measure also works in the sense of Enlargement of the creepage distances.
  • the locking piece can have a rib for mutual Support of an upstream of the head piece of the bearing pin Barrier and one filling the assembly opening Have locking legs.
  • the rib acts as a stiffener and therefore allows the production of the locking piece as lightweight plastic molding.
  • Figure 1 shows a schematic representation Low-voltage circuit breakers on average.
  • FIG. 2 shows a contact lever carrier shown in FIG. 1 on a larger scale and partly in section.
  • Figure 3 is an illustration of section III-III in Figure 2.
  • the low-voltage circuit breaker shown schematically in FIG. 1 1 has a movable contact arrangement 2 to which a connecting bar 3, flexible current strips 4th and include at least one movable contact lever 5.
  • a Contact lever carrier 6 is by a drive device 7, an actuated shift shaft 10 and drive lever 11 for Swiveling on and off.
  • the movable contact lever 5 interacts with a fixed counter contact 12, which with a further connecting rail 13 in connection stands.
  • FIGS. 2 and 3 Details of the connection of the drive lever 11 with the Contact lever carriers 6 are described below with reference to FIGS. 2 and 3 described in more detail.
  • a locking piece 15 is located at the Mounting opening accessible from the top of the contact lever carrier 6 14 shown, in which a locking piece 15 is located.
  • Located in a transverse bore 16 of the contact lever carrier 6 a bearing pin 17, which has a bearing opening of the drive lever 11 enforced.
  • two parallel drive lever 11 for power transmission to the contact lever carrier 6 are provided.
  • 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 hole a locking leg 24 of the locking piece 15. How can be seen in particular from Figure 3, the Lock leg 24 of the locking piece 15, the assembly opening 14 of the contact lever carrier 6.
  • a rib 26 extends between the closure leg 24 and the barrier 20. Is over part of its length the rib 26 at a mounting opening 14 delimiting Wall surface 25 of the contact lever carrier 6. From the bearing pin 17 outgoing axial forces are thus under Bypassing the locking screw 22 directly into the contact lever carrier 6 initiated.
  • connection is between the contact lever carrier 6 and the drive lever 11 in a simple manner by inserting the bearing pin 17 to produce in the transverse bore 16.
  • This is the assembly opening 14 provided with a lateral mouth 27.
  • the locking piece 15 from above into the assembly opening 14 inserted, which is only possible if the Barrier 20 on the head piece 21 of the bearing pin 17 step past can.
  • the locking screw 22nd likewise inserted into the mounting opening 14 from above.
  • the Locking screw 22 is of such a length that sufficient Attachment is achieved, but still a distance to the bearing pin 17. So that the locking screw 22 not in conductive connection with the bearing pin 17 get, which in turn on the drive lever 11 with the Grounding drive device 7 is.
  • the Locking screw 22 can therefore not act as an electrode.

Landscapes

  • Breakers (AREA)
  • Slide Switches (AREA)
EP97915338A 1996-03-08 1997-02-28 Leistungsschalter mit isolierendem kontakthebelträger Expired - Lifetime EP0885449B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29605081U DE29605081U1 (de) 1996-03-08 1996-03-08 Leistungsschalter mit isolierendem Kontakthebelträger
DE29605081U 1996-03-08
PCT/DE1997/000436 WO1997033290A2 (de) 1996-03-08 1997-02-28 Leistungsschalter mit isolierendem kontakthebelträger

Publications (2)

Publication Number Publication Date
EP0885449A1 EP0885449A1 (de) 1998-12-23
EP0885449B1 true EP0885449B1 (de) 1999-09-01

Family

ID=8021325

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97915338A Expired - Lifetime EP0885449B1 (de) 1996-03-08 1997-02-28 Leistungsschalter mit isolierendem kontakthebelträger

Country Status (4)

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

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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3679291D1 (de) * 1985-10-31 1991-06-20 Merlin Gerin Kinematische uebertragungskette zwischen dem steuermechanismus und den polen eines elektrischen lastschalters mit einem gespritzten isoliergehaeuse.
DE4416105C1 (de) * 1994-04-19 1995-05-24 Siemens Ag Niederspannungs-Leistungsschalter mit einer Schaltkammer

Also Published As

Publication number Publication date
EP0885449A1 (de) 1998-12-23
WO1997033290A3 (de) 2001-09-13
DE29605081U1 (de) 1996-06-05
DE59700394D1 (de) 1999-10-07
WO1997033290A2 (de) 1997-09-12
IN191379B (enrdf_load_stackoverflow) 2003-11-29

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