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WO1996019004A1 - Mecanisme d'entrainement a ressort accumulateur pour interrupteur de puissance electrique - Google Patents

Mecanisme d'entrainement a ressort accumulateur pour interrupteur de puissance electrique Download PDF

Info

Publication number
WO1996019004A1
WO1996019004A1 PCT/DE1995/001803 DE9501803W WO9619004A1 WO 1996019004 A1 WO1996019004 A1 WO 1996019004A1 DE 9501803 W DE9501803 W DE 9501803W WO 9619004 A1 WO9619004 A1 WO 9619004A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring
damping
lever
cam
drive shaft
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.)
Ceased
Application number
PCT/DE1995/001803
Other languages
German (de)
English (en)
Inventor
Gunnar Lutzke
Joaquin-Conrado Bohrdt
Klaus Schuler
Christian Klocke
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 WO1996019004A1 publication Critical patent/WO1996019004A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock

Definitions

  • a damping lever firmly connected to a drive shaft strikes an actuating element arranged in its path of movement in the form of a roller and thus actuates a toggle lever mechanism with the interposition of a damping member. After actuation, the damping lever can move past the actuating element.
  • the present invention is therefore based on the object of designing a spring-loaded drive of the type mentioned in such a way that, on the one hand, the damping member dampens the dynamic energy of the drive as well as possible after completion of the actual stopping movement, and that it is not caused by the overshoot of a spring and a subsequent swinging back of drive parts collide with other drive parts.
  • the drive shaft is first driven by the spring and thereby a mechanism connected to the drive shaft for actuating switching contacts is driven.
  • the actuating element of the damping member forms a fixed stop and thus blocks a backward movement of the damping lever.
  • the cam has two flanks of different designs.
  • Flank exerts pressure on the roller in a direction in which it cannot be moved.
  • a further advantageous embodiment of the invention provides that the damping lever actuates a control mechanism in the course of its orbital movement after passing the top dead center of the spring, which stops a tensioning motor.
  • the tensioning motor is only activated by the damping lever let go when the top dead center of the spring and thus the spring is fully tensioned.
  • the damping member has a hydraulic shock absorber.
  • the damping liquid of this shock absorber advantageously consists of an environmentally friendly substance, for example a liquid of water hazard class 0.
  • FIG. 1 shows schematically a drive shaft in cross section with a cam and an damping member in a position at the end of the damping movement
  • FIG. 2 shows the arrangement from FIG. 1 after the damping and after the swinging back movement of the cam
  • FIG. 1 shows in cross section a drive shaft 1 with which a cam disk 2, which forms a damping lever 1, is firmly connected.
  • the drive shaft 1 is connected by means of a crank, not shown, to a coil spring, also not shown, which serves as an energy store of the spring-loaded drive.
  • the drive mechanism is first unlatched, so that under the influence of the spring, not shown, the drive shaft 1 is rotated and this Passes movement to a breaker unit, not shown.
  • the drive shaft 1 and the cam disk 2 and other parts accelerated during the switching process have considerable dynamic energy, which is to be largely implemented in the attenuator 3.
  • the cam 4 of the cam disc 2 meets the roller 5, which acts as an actuating element of the damping member 3.
  • the roller 5 is rotatably mounted on a tappet 6 which drives a piston 7 in a hydraulic cylinder 8.
  • the attenuator 3 is a shock absorber working with hydraulic fluid.
  • An environmentally compatible liquid for example of water hazard class 0, is advantageously provided as the hydraulic fluid.
  • the cam 4 can run past the roller 5. This is facilitated by the rotatable mounting of the roller 5.
  • a control mechanism 11 which has a lever which can be actuated by the cam 4 of the cam plate 2 after passing through the top dead center of the spring.
  • This control mechanism also has a control lever which actuates the control device 12 of the tensioning motor.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

L'invention concerne un mécanisme d'entraînement à ressort accumulateur destiné à un interrupteur de puissance électrique. Ce mécanisme présente au moins un ressort qui, en position de commutation, entraîne un arbre primaire (1). Il présente également un levier d'amortissement rotatif fixé sur l'arbre primaire (1), sous forme d'une came tournante (2), ainsi qu'un élément d'actionnement (5) d'un élément d'amortissement (3). L'élément d'amortissement (3) est disposé sur le trajet de déplacement du levier d'amortissement (2) qui peut se déplacer devant l'élément d'amortissement (3) après avoir été freiné par celui-ci. Selon l'invention, l'élément d'actionnement (5) de l'élément d'amortissement (3), sous forme d'un galet, forme une butée fixe qui bloque le retour du levier d'amortissement (2), une fois que ce dernier est passé devant l'élément d'actionnement. Ceci permet d'empêcher un retour du ressort et des éléments d'entraînement déplacés, après le mouvement de commutation.
PCT/DE1995/001803 1994-12-16 1995-12-08 Mecanisme d'entrainement a ressort accumulateur pour interrupteur de puissance electrique Ceased WO1996019004A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4446664.1 1994-12-16
DE19944446664 DE4446664C1 (de) 1994-12-16 1994-12-16 Federspeicherantrieb für einen elektrischen Leistungsschalter

Publications (1)

Publication Number Publication Date
WO1996019004A1 true WO1996019004A1 (fr) 1996-06-20

Family

ID=6537172

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1995/001803 Ceased WO1996019004A1 (fr) 1994-12-16 1995-12-08 Mecanisme d'entrainement a ressort accumulateur pour interrupteur de puissance electrique

Country Status (2)

Country Link
DE (1) DE4446664C1 (fr)
WO (1) WO1996019004A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2794278B1 (fr) * 1999-05-28 2001-08-10 Alstom Dispositif de commande rapide pour un appareil de connexion a haute tension, notamment un sectionneur de terre
FR3054367B1 (fr) * 2016-07-19 2021-12-10 Schneider Electric Ind Sas Dispositif d'amortissement du mouvement d'un arbre de commande dans un appareil de protection electrique et appareil de protection electrique comportant un tel dispositif

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE435030C (de) * 1925-01-29 1926-10-06 August Nagel Dr Daempfungsvorrichtung fuer elektrische Schalter
GB770476A (en) * 1954-11-09 1957-03-20 Ashley Accessories Ltd Improvements in or relating to electric switches
US3113191A (en) * 1961-02-14 1963-12-03 Gen Electric Operating mechanism for an electric circuit breaker
DE2215535A1 (de) * 1972-03-30 1973-10-04 Sachsenwerk Licht & Kraft Ag Schalterantrieb fuer leistungsschalter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4023740C2 (de) * 1990-07-26 1994-06-09 Licentia Gmbh Schalterantrieb
DE4234389A1 (de) * 1992-10-08 1994-06-23 Aeg Tro Transformatoren Gmbh Bremsanordnung für eine Einschalteinrichtung eines Hochspannungsschaltgerätes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE435030C (de) * 1925-01-29 1926-10-06 August Nagel Dr Daempfungsvorrichtung fuer elektrische Schalter
GB770476A (en) * 1954-11-09 1957-03-20 Ashley Accessories Ltd Improvements in or relating to electric switches
US3113191A (en) * 1961-02-14 1963-12-03 Gen Electric Operating mechanism for an electric circuit breaker
DE2215535A1 (de) * 1972-03-30 1973-10-04 Sachsenwerk Licht & Kraft Ag Schalterantrieb fuer leistungsschalter

Also Published As

Publication number Publication date
DE4446664C1 (de) 1996-03-07

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