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EP1173868B1 - Schutzschalteinrichtung, beispielsweise leitungsschutzschalter - Google Patents

Schutzschalteinrichtung, beispielsweise leitungsschutzschalter Download PDF

Info

Publication number
EP1173868B1
EP1173868B1 EP00929304A EP00929304A EP1173868B1 EP 1173868 B1 EP1173868 B1 EP 1173868B1 EP 00929304 A EP00929304 A EP 00929304A EP 00929304 A EP00929304 A EP 00929304A EP 1173868 B1 EP1173868 B1 EP 1173868B1
Authority
EP
European Patent Office
Prior art keywords
contact arm
contact
switch unit
unit according
axle bearing
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
EP00929304A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1173868A1 (de
Inventor
Gunther Eckert
Elmar Fischer
Christoph Weber
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
Priority to SI200030054T priority Critical patent/SI1173868T1/xx
Publication of EP1173868A1 publication Critical patent/EP1173868A1/de
Application granted granted Critical
Publication of EP1173868B1 publication Critical patent/EP1173868B1/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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms
    • H01H2300/048—Snap closing by latched movable contact, wherein the movable contact is held in a minimal distance from the fixed contact during first phase of closing sequence in which a closing spring is charged
    • 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
    • H01H71/04—Means for indicating condition of the switching device

Definitions

  • the invention relates to a protective switching device, for example, on a circuit breaker whose Switch lock between a hand control and at least one movable contact arm at a latching point between a pawl and a release lever by a release device can be released (see e.g. DE-A-19 04 731).
  • switch locks with so-called flying Latching that is to say a portable latching point, the Advantage of more precise guidance and lower friction losses, so that you can get by with lower spring forces.
  • flying Latching that is to say a portable latching point
  • the invention has for its object a protective switching device with compact switch lock and contact arrangement to develop a portable latching point allows.
  • a Protective switching device according to claim 1.
  • the movable Contact arm in a tab on both sides encompassing this Can be moved with the bracket on a first axle bearing and rotatably mounted.
  • the pawl is also mounted off-center.
  • the tab has another axle bearing on both sides, on the off-center the trigger lever is mounted so that it can rotate is.
  • the bracket and the movable also pivot about this axis Contact arm if it is not on a fixed Contact is pending.
  • the first axle bearing limits the switch-off path the contact arm, for example pending the Axis on a housing stop. It is therefore also used as an off-stop designated.
  • the tab forms a stable support element for the jack and Release levers that are in a plane above or below the contact area can be arranged.
  • the stable tab structure enables a quick, low-friction contact opening at one torsion-free movable contact arm. Therefor an elongated hole guide is not required.
  • the asymmetrical structure over several levels has the further significant advantage that reignitions are avoided that occur when a moving contact after switching off on the contact path limiting stroke strikes and bounces back, being approaches the fixed contact of the contact pair again. Since the stop in one plane is off-center to the contact arrangement, so outside the level of the contact arrangement, is arranged, result in a trigger stroke from Impact anchor of a release device torsional vibrations, that have a dampening effect on the switching process.
  • construction combines a stable, torsion-free Guide for the movable contact arm with damping on the other Torsional vibrations when switching off on the release lever. This avoids reignitions.
  • a torsion-free Guiding the contact arm also prevents restless ones Contact layers.
  • the structure over several levels also has the advantage that a compact arrangement of switch lock and contact arm is achieved.
  • the axle bearing for the release lever can be advantageous in terms of the axle bearing for the contact arm on the contact Side of the contact arm can be arranged. Thereby a spring on the contact arm is sufficient to generate the contact force and the tear force at the contact opening. Thereby again, you don't need multiple spring forces that are compensate for different switching sequences and would decrease.
  • the pawl can be spaced in a portable pawl bearing a coupling rod to the bearing for the contact arm Hand control store what the structure of the key switch promotes.
  • the contact arm can advantageously consist of two parts in the axial direction components arranged one above the other are formed.
  • Base part can be made of mechanically strong material and a contact carrier or a contact-forming head region can be made of electrically conductive material be optimized for the protective switching device can.
  • Base part and contact carrier can be in the axial direction overlapping one another, which is a simple Manufacturing enables.
  • a spring switch can be connected to the hand control stand such that when switched on manually a distance giving body with waste edge pulled away between the contact pair is, so that there is a sudden switch-on.
  • Such jumpers are available in different versions known (DE-A-4 016 364). Such switchgear lead to particularly intense switching surges caused by the structure according to the invention are damped.
  • a magnetic release can be arranged so that its plunger, also known as an impact anchor, on the release lever below Formation of a long lever arm attacks.
  • a spring between the Axle bearing for the contact arm and the axle bearing for the Release lever attacks is advantageous.
  • the spring on the is advantageous Side to the hand control and arranged as a tension spring.
  • the contact force is then achieved through this spring and overcome the contact opening force without a counter spring force to have to.
  • the tab can with a switch position indicator be connected.
  • the guidance of the movable contact arm in the tab can between additional guide ribs respectively.
  • FIG. 1 shows an essential assembly of the protective switching device illustrated in perspective. Grips around a tab a movable contact arm on both sides and forms axes for an axle bearing.
  • FIG. 2 shows the assembly according to FIG. 1 in the manner of an exploded view illustrated.
  • FIG. 3 shows a protective switching device with a manual control element, Switch lock and contact arrangement and a plunger one for clarity because the magnetic release is not shown shown in the off position.
  • FIG. 4 the switch-on position is shown in FIG. 3 played.
  • FIG. 5 schematically illustrates a jump activation, with additional components for clarity 3 and 4 are omitted.
  • FIG. 6 shows the representation according to FIGS. 3 and 4 and in connection with a reproduced switching spring Illustrated blow initiation for a release, where the plunger of a magnetic release straight onto the release lever incident.
  • FIG. 7 shows the representation according to FIGS. 3 and 4 reproduced an additional switch position indicator.
  • the protective switching device has a movable contact arm 1 according to FIG 1, in a tab that encompasses this 2 on both sides on a first axle bearing 3 in the kinematics of the key switch with the flap can be moved and is rotatably mounted.
  • the tab 2 has another axle bearing 4 on both sides, on the off center Release lever can be rotatably mounted stationary. Around this further axis also pivots the bracket and the movable one Contact arm if it is not on a fixed Contact 7, according to FIG 3, is present.
  • the first axle bearing 3 limited also the switch-off path of the contact arm 1. Compare 3
  • the switch-off position is shown in FIG.
  • the stationary Axle bearing 4 for the release lever is in terms of portable axle bearing 3 for the contact arm 1 the contacting side of the contact arm.
  • the Contact arm 1 forms with a fixed contact 7 Contact pair.
  • the pawl 6 rests in a portable Pawl bearing 8 spaced from the bearing 3 for the contact arm 1 a coupling rod 9 to a manual control element 10.
  • the contact arm 1 is in two parts in the embodiment in Axial direction formed superimposed components.
  • a base part 11 made of mechanically strong material is on the side with a contact carrier 12 or a contact part forming Head area mechanically firmly connected, for example by Electric spot welding.
  • the electrodynamic release can done by an electromechanical trigger, the Ram 13 is illustrated.
  • FIG. 4 The switch-on position after swiveling the manual control element 10 from the switch-off position according to FIG. 3 is shown in FIG. 4 illustrated.
  • a common electrothermal trigger is in FIG 4 as well as in FIG 3 for clarity not shown.
  • FIG. 6 an am Contact arm 1 engaging spring 14 between the axle bearing 3 for the contact arm and the axle bearing 4 for the release lever 5 shown. It also shows the moment where the plunger 13 on the release lever 5 due to an electrodynamic Triggering hits the unlatching by falling off initiate the pawl 6 from the release lever 5. It is favorable if the plunger 13 on the release lever 5 with formation a long lever arm 15 attacks.
  • FIG. 5 shows an additional snap-action switching device 16 illustrates that with the hand control 10 in connection stands.
  • a distance is given Body 17 with a waste edge 18 between the contact pair 19 pulled away, so that there is a sudden switch-on, where the contact arm on the fixed contact 7 occurs.
  • a jump switch is in various versions known (DE-A-4 016 364).
  • the switching spring 14 is on the side arranged to the hand control 10 and designed as a tension spring.
  • the tab 1 is a Switch position indicator 20 connected. This is a visual indicator 21 under a viewing window 22 in coupling one Switch position swiveled.
  • the movable contact arm can also in the tab 2 are guided by guide ribs 23.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Breakers (AREA)
  • Keying Circuit Devices (AREA)
  • Lock And Its Accessories (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
EP00929304A 1999-04-28 2000-04-17 Schutzschalteinrichtung, beispielsweise leitungsschutzschalter Expired - Lifetime EP1173868B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200030054T SI1173868T1 (en) 1999-04-28 2000-04-17 Circuit breaker, for example automatic cutout

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19919420A DE19919420A1 (de) 1999-04-28 1999-04-28 Schutzschalteinrichtung, beispielsweise Leitungsschutzschalter
DE19919420 1999-04-28
PCT/DE2000/001198 WO2000067278A1 (de) 1999-04-28 2000-04-17 Schutzschalteinrichtung, beispielsweise leitungsschutzschalter

Publications (2)

Publication Number Publication Date
EP1173868A1 EP1173868A1 (de) 2002-01-23
EP1173868B1 true EP1173868B1 (de) 2002-11-20

Family

ID=7906217

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00929304A Expired - Lifetime EP1173868B1 (de) 1999-04-28 2000-04-17 Schutzschalteinrichtung, beispielsweise leitungsschutzschalter

Country Status (8)

Country Link
EP (1) EP1173868B1 (es)
CN (1) CN1210747C (es)
AT (1) ATE228267T1 (es)
BR (1) BR0010136A (es)
DE (2) DE19919420A1 (es)
ES (1) ES2187469T3 (es)
TR (1) TR200103118T2 (es)
WO (1) WO2000067278A1 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10133878B4 (de) * 2001-07-12 2004-07-08 Siemens Ag Schaltgerät mit einem Schaltschloss
DE10211905A1 (de) * 2002-03-18 2004-04-15 Eti Elektroelement D.D. Leitungsschutzschalter mit zweipoliger Unterbrechung
DE102005038149A1 (de) * 2005-08-12 2007-02-22 Abb Patent Gmbh Leitungsschutzschalter
CN102412099B (zh) * 2011-08-08 2014-07-02 山东卓尔电气有限公司 电磁开关用锁扣机构
CN103000437B (zh) * 2011-09-15 2015-09-23 西门子公司 合闸机构及包括该合闸机构的隔离开关
CN103681128B (zh) * 2013-12-19 2016-05-18 厦门宏发开关设备有限公司 一种带故障提醒的开关断路器
WO2015103196A1 (en) 2014-01-03 2015-07-09 Electronic Theatre Controls, Inc. Electrical circuit breaker assembly
DE102014106015A1 (de) * 2014-04-29 2015-10-29 Eaton Industries Austria Gmbh Schaltgerät

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1904731C3 (de) * 1969-01-31 1975-11-20 Joseph Dipl.-Ing. 8500 Nuernberg Westermeyer Elektrischer Kleinselbstschalter
DE3339398A1 (de) * 1983-10-29 1985-05-09 Sursum Elektrizitätsgesellschaft Leyhausen GmbH & Co, 8500 Nürnberg Selbstschalter mit offener und geschlossener kontaktstellung
EP0188482B1 (de) * 1984-07-14 1989-03-15 Licentia Patent-Verwaltungs-GmbH Schaltschloss
TR23732A (tr) * 1987-07-13 1990-07-30 Siemens Ag Devre koruma salteri.
DE4016364A1 (de) * 1989-06-30 1991-01-03 Siemens Ag Leitungsschutzschalter mit momenteinschaltung
US5214402A (en) * 1991-12-23 1993-05-25 North American Philips Corporation Trip link latch and interpole link for a circuit breaker
AT404648B (de) * 1992-06-29 1999-01-25 Felten & Guilleaume Ag Oester Selbstschalter
FR2766292B1 (fr) * 1997-07-16 1999-09-03 Schneider Electric Sa Dispositif de commande d'un appareil de protection electrique tel un disjoncteur comprenant un moyen de signalisation du declenchement, et disjoncteur equipe d'un tel dispositif

Also Published As

Publication number Publication date
CN1358321A (zh) 2002-07-10
EP1173868A1 (de) 2002-01-23
ATE228267T1 (de) 2002-12-15
DE19919420A1 (de) 2000-11-02
WO2000067278A1 (de) 2000-11-09
TR200103118T2 (tr) 2002-04-22
ES2187469T3 (es) 2003-06-16
BR0010136A (pt) 2002-01-22
DE50000796D1 (de) 2003-01-02
CN1210747C (zh) 2005-07-13

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