EP0038285B1 - Kraftantrieb für elektrische Schaltgeräte mit einem Antriebsschieber - Google Patents

Kraftantrieb für elektrische Schaltgeräte mit einem Antriebsschieber Download PDF

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Publication number
EP0038285B1
EP0038285B1 EP81730033A EP81730033A EP0038285B1 EP 0038285 B1 EP0038285 B1 EP 0038285B1 EP 81730033 A EP81730033 A EP 81730033A EP 81730033 A EP81730033 A EP 81730033A EP 0038285 B1 EP0038285 B1 EP 0038285B1
Authority
EP
European Patent Office
Prior art keywords
drive
slide
drive slide
handle
switching device
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
Application number
EP81730033A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0038285A1 (de
Inventor
Bernhard Preuss
Reinhard Zeuke
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
Original Assignee
Siemens AG
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 filed Critical Siemens AG
Publication of EP0038285A1 publication Critical patent/EP0038285A1/de
Application granted granted Critical
Publication of EP0038285B1 publication Critical patent/EP0038285B1/de
Expired 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
    • H01H3/38—Driving mechanisms, i.e. for transmitting driving force to the contacts using spring or other flexible shaft coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18888—Reciprocating to or from oscillating
    • Y10T74/1892—Lever and slide
    • Y10T74/18968—Flexible connections

Definitions

  • the invention relates to a power drive for an electrical switchgear, in particular a low-voltage circuit breaker, the switchgear for actuation on its front side having a pivotable handle and an elevation surrounding this handle with side surfaces extending parallel to the direction of movement of the handle and the power drive Contains support element for drive parts and a drive slide arranged in the space between the support element and the front of the switching device, which has side walls parallel to the side surfaces of the elevation and overlaps the handle with a window-like opening.
  • a power drive of this type is e.g. B. is known from US-A-3,286,211.
  • the drive slide is guided on guide elements of the support plate.
  • the correct alignment of the slide or its window-like opening with respect to the actuating member is based on the correct connection of the support plate to the switching device by means of screws near the front sides of the switching device.
  • Inevitable tolerances can, however, result in the drive slide not interacting with the actuating element in a flat or linear manner, and consequently the driving forces in the actuating element are not uniformly introduced, but instead are concentrated locally in an undesirable manner. This can result in premature wear of the interacting parts or even breakage of the actuator.
  • the invention has for its object to ensure a low-wear interaction of the drive slide with the actuator of the switching device regardless of the attachment of the support plate to the switching device.
  • the drive slide consists of a plastic and has curved surfaces for cooperation with the handle, that the drive slide is guided on the support element and the side of the switching device facing it and the side walls of the drive slide as with Side surfaces of the survey interacting guide surfaces are formed.
  • the design of the drive slide described offers the possibility, when attaching a power drive to a switching device of the type mentioned, to first place the drive slide on the front of the switching device in such a way that the actuating member passes through the window-like opening and then the support plate with the other drive parts put on the switchgear.
  • the support plate with the drive parts including the drive slide it may be advantageous to provide the drive slide with a Langlocn extending in its direction of movement for the passage of at least one holding member attached to the support plate.
  • This holding element only has the task of avoiding loosening of the drive slide from the support plate.
  • the holding member is not intended to provide guidance for the drive slide after it has been attached to the switching device, which can be achieved by a corresponding tolerance between the elongated hole and the holding member.
  • the mounting of the drive slide on the support plate until it is mounted on the switching device can be further improved in that the drive slide additionally has, on its side opposite the elongated hole, a web which is gripped by an arm of a control slide guided on the support plate parallel to the direction of movement of the drive slide becomes.
  • the web and the arm There should also be a relatively large amount of play between the web and the arm, so that the orientation of the drive slide relative to the drive element of the switching device is in no way influenced by this holder.
  • the control slide mentioned serves to switch off a motor of the power drive when the desired switching positions of the switching device are reached.
  • it can be designed as a drag valve and can interact with the webs which also serve to secure the position of the drive valve.
  • FIG. 3 A detail of a control slide is shown in FIG. 3.
  • the power drive designated as a whole by 1, is assigned to a low-voltage circuit breaker 2 of the compact design, the outline of which is partially shown in broken lines in FIG. 2.
  • An actuating handle 4 protrudes from a central elevation 3 of the low-voltage circuit breaker 2, with which the low-voltage circuit breaker 2 can normally be switched on and off by hand.
  • a drive slide 5 interacts with this actuating handle and is provided with a window-like opening 6 for this purpose.
  • This is designed so that two curved surfaces 7 substantially corresponding to the width of the actuating handle 4 and then extensions 10 are present on both sides. These extensions ensure that there are no corners or edges that could locally increase the stress on the material of the actuating handle 4.
  • the distance between the surfaces 7 is selected so that even in the end positions of the actuating handle 4 (in FIG. 2 an intermediate position is shown when the low-voltage circuit breaker 2 is switched on or off), there is little play and thus jamming is avoided .
  • the drive slide 5 has two webs 20, one of which is visible in FIG. 1. These webs interact with stop surfaces 21 of a control slide 22, which has a control cam 23 for a snap switch 24. Because the distance between the webs 20 is greater than the distance between the stop surfaces 21 of the control slide 22, there is no direct coupling between the drive slide and the control slide, but a certain dead gear, such that the control slide is actuated as a drag slide.
  • the control slide 22 is also longitudinally displaceable in the direction of the double arrow 16 in a slot in the support plate 13 and engages behind the arms 20 of the drive slide 5 with arms 25.
  • a resilient extension 18 (FIG. 3) of the control slide 22 pulls it against its support surface on the support plate 13 and thereby causes a friction inhibition to prevent self-movement without drive.
  • the arms 25 complete the mounting of the drive slide 5 by the screw 17 mentioned.
  • the drive slide is consequently held on the support plate 13 with considerable play such that it cannot come loose and therefore together with the other parts of the power drive on the low voltage -Protection switch 2.
  • the guide goes from the screw 17 and the extensions 25 onto the actuating handle 4 and the curved surfaces 7 or the support plate 13 and the Top of the low voltage circuit breaker 2 over.
  • the control slide 22 has a display surface 40 which extends to just below a cap 41 covering the power drive 1 to the outside and which is provided with markings for identifying the switching position.
  • the control slide thus fulfills several functions by not only controlling the switching on and off of the motor 26, but at the same time forming a holder for the drive slide 5 and indicating the switching position.
  • the power drive 1 further comprises a motor 26 in connection with a gear 27, which comprises an output shaft 28 perpendicular to the support plate 13 with a crank arm 29 and a crank pin 30.
  • the opening 34 merges into a pocket-like recess 35, in which the one leg 31 of the leaf spring 32 is latched with a bent end 36.
  • a screw 37 extends between the legs 31 in the region of the opening 34 and supports the legs against one another.
  • the protective switch 2 can be switched on and off alternately by rotating the crank arm 29 in the same direction by about 180 ° in each case.
  • the drive slide with the actuating handle 4 is in a central position corresponding to a rotation of the crank arm 29 by approximately 90 ° with respect to its end positions.
EP81730033A 1980-04-15 1981-03-19 Kraftantrieb für elektrische Schaltgeräte mit einem Antriebsschieber Expired EP0038285B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3014824A DE3014824C2 (de) 1980-04-15 1980-04-15 Kraftantrieb für elektrische Schaltgeräte mit einem Antriebsschieber
DE3014824 1980-04-15

Publications (2)

Publication Number Publication Date
EP0038285A1 EP0038285A1 (de) 1981-10-21
EP0038285B1 true EP0038285B1 (de) 1984-05-16

Family

ID=6100320

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81730033A Expired EP0038285B1 (de) 1980-04-15 1981-03-19 Kraftantrieb für elektrische Schaltgeräte mit einem Antriebsschieber

Country Status (5)

Country Link
US (1) US4444067A (tr)
EP (1) EP0038285B1 (tr)
JP (1) JPS56165240A (tr)
CA (1) CA1161889A (tr)
DE (1) DE3014824C2 (tr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5025171A (en) * 1989-09-22 1991-06-18 S&C Electric Company Method and arrangement for providing power operation of switchgear apparatus
US5200877A (en) * 1990-04-04 1993-04-06 Baton Labs, Inc. Battery protection system
DE4142854A1 (de) * 1991-12-20 1993-06-24 Siemens Ag Kraftantrieb fuer elektrische schaltgeraete mit einem betaetigungshandgriff
FR2736751B1 (fr) * 1995-07-12 1997-08-14 Gec Alsthom T & D Sa Dispositif d'actionnement d'un appareil electrique en particulier d'un sectionneur ou d'un sectionneur de mise a la terre haute tension
US5949157A (en) * 1997-09-11 1999-09-07 Baton Labs, Inc. Motor driven switch
US7630189B2 (en) * 2007-05-17 2009-12-08 Energie H.T. International Inc. High voltage disconnecting switch control
US7999416B2 (en) * 2008-04-14 2011-08-16 Emergie H. T. International Inc. Module for controlling a switch in a high voltage electrical substation

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2237530A (en) * 1938-11-23 1941-04-08 Crouse Hinds Co Switch actuating mechanism
US2627562A (en) * 1950-01-31 1953-02-03 Pierce John B Foundation Two-wire sequence relay
ES260872A1 (es) * 1959-10-22 1961-12-16 Westinghouse Electric Corp Un mecanismo para operar un cortador de circuito
DE1252302B (tr) * 1962-11-08
US3213235A (en) * 1962-11-27 1965-10-19 Westinghouse Electric Corp Friction-clutch type mechanism for operating circuit interrupters
US3286211A (en) * 1964-11-27 1966-11-15 Westinghouse Electric Corp Friction-clutch type mechanism for operating circuit interrupters
US3328731A (en) * 1965-06-14 1967-06-27 Huska Paul Combined electrical circuit breaker and actuator
US3371296A (en) * 1965-07-14 1968-02-27 Westinghouse Electric Corp Circuit breaker and motor operator
US3590648A (en) * 1969-08-19 1971-07-06 De Witt Y Gorman Remote light-switching apparatus
US3651700A (en) * 1970-06-22 1972-03-28 Switchcraft Push button means
US3752947A (en) * 1972-07-27 1973-08-14 Ite Imperial Corp Auxiliary mechanism for operating handle of circuit breaker
US3816686A (en) * 1973-03-02 1974-06-11 Ideal Security Hardware Co Slide actuator for toggle switch

Also Published As

Publication number Publication date
JPS56165240A (en) 1981-12-18
EP0038285A1 (de) 1981-10-21
CA1161889A (en) 1984-02-07
DE3014824A1 (de) 1981-10-22
DE3014824C2 (de) 1982-09-16
US4444067A (en) 1984-04-24

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