EP2602804A1 - Betätigungsvorrichtung für die Pole in einer elektrischen Mittelspannungsbetätigungseinrichtung - Google Patents

Betätigungsvorrichtung für die Pole in einer elektrischen Mittelspannungsbetätigungseinrichtung Download PDF

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Publication number
EP2602804A1
EP2602804A1 EP12306303.4A EP12306303A EP2602804A1 EP 2602804 A1 EP2602804 A1 EP 2602804A1 EP 12306303 A EP12306303 A EP 12306303A EP 2602804 A1 EP2602804 A1 EP 2602804A1
Authority
EP
European Patent Office
Prior art keywords
cam
shaft
roller
control device
cams
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.)
Granted
Application number
EP12306303.4A
Other languages
English (en)
French (fr)
Other versions
EP2602804B1 (de
Inventor
Yves Belin
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP2602804A1 publication Critical patent/EP2602804A1/de
Application granted granted Critical
Publication of EP2602804B1 publication Critical patent/EP2602804B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • 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
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3005—Charging means
    • H01H3/3015—Charging means using cam devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • 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
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2102—Adjustable

Definitions

  • the present invention relates to a device for controlling the poles of an electrical control device adapted to drive a shaft, said first, for supporting the mobile contacts of the appliance between an open position of the pole in which the movable contacts and the fixed contacts of the apparatus are separated and a closed position of the pole in which these movable and fixed contacts are in contact, said device comprising a closing spring controlled by an actuating shaft, said second, said spring being able to transmit closing energy said shaft said first after compression and passage of said spring beyond a line of neutral passage, via a cam rotated by said shaft said second, and cooperating with a roller secured to the shaft said first, holding means of the said first control shaft in the closed position, and unlocking means of the aforementioned holding means permitting t quick opening of the device contacts.
  • Pole control devices comprising a closing spring capable of supplying the closing energy to a cam capable of retransmitting this energy to the control shaft of the poles by means of a roller and comprising a control device are known. hooking adapted to retain the pole control shaft in a closed position.
  • this attachment system generates a large number of parts.
  • the present invention solves these problems and proposes a device for controlling the poles of an electrical control apparatus, of simple design in that it does not use a fastening system for the maintenance in closing, in which the Excess energy is managed, and having a high speed of opening.
  • the present invention relates to a control device of the kind mentioned above, this device being characterized in that the aforementioned holding means are carried by said cam.
  • the aforementioned unlocking means are carried by the cam.
  • the aforementioned cam comprises a so-called first part of which at least a portion of the outer surface cooperates with the roller so that it remains in abutment on the cam after the closure thus achieving the maintenance in the closed position of the tree says first.
  • the aforementioned unlocking means comprise a beak-shaped part belonging to the cam, this part being able to be retracted by the roller at the end of the opening maneuver of the corresponding apparatus at the beginning of the rotation of the control shaft said first in the direction of opening, so as to facilitate the rapid opening of the control shaft.
  • the compression spring is compressed, and the cam is rotated so as to bring the cam and the roller to a point of equilibrium, after which the part The nozzle of the cam is retracted by the roller, which causes the opening of the contacts.
  • the aforementioned cam comprises a so-called fixed cam and a so-called mobile cam, which is movable in rotation with respect to the fixed cam, the two cams being shaped in such a way that during a closing maneuver, the cam said second shaft drives both cams at the same time and the roller cooperates with the outer surface of the two cams, that during an opening maneuver, the shaft said second is driven in the same direction, and that at the end of the opening maneuver, the roller cooperates only with the nose portion of the movable cam so that the component of force of the roller on the cam drives the movable cam by rotation thereof relative to the fixed cam and release the tree said first.
  • the fixed and movable cams comprise elongated openings capable of cooperating with studs secured to the said second shaft, so as to allow the relative rotation between the two cams between two positions defined by the ends of the openings and corresponding respectively at a position in which the two cams are driven at the same time and a position in which the aforementioned beak portion is retracted.
  • the fixed cam and the movable cam have substantially the same shape, the movable cam being of larger size than the fixed cam, so that when the two cams are driven at the same time, the two beak parts are staggered so that at the end of opening operation of the shaft said second, the roller cooperates only with the spout of the movable cam.
  • the movable cam is rotatable relative to the fixed cam about the axis of rotation of the said second shaft, and in that when the two cams are driven at the same time, the two parts forming bec are offset angularly with respect to said axis so that at the end of the opening maneuver of said second shaft, the roller cooperates only with the spout of the movable cam.
  • the cam comprises means for absorbing the excess energy generated during the closing operation of the apparatus, this energy being absorbed by re-compression of the closing spring and friction of the roller on the cam.
  • these means for absorbing the excess energy comprise a so-called second cam portion interposed between the aforementioned first portion of the cam and the mouth of the cam, this second portion having a surface cooperating with the roller to absorb the excess energy generated during compression closure of the spring and friction on the roller.
  • each cam has a first portion in the form of a disk portion having a first radius for maintaining the closing of the control shaft, followed by a second portion in the form of a disk portion having the same radius and allowing absorption of excess energy generated during closure, followed by a third disc-shaped portion having a radius greater than the first radius, and terminated by a beak portion.
  • the apparatus is a medium voltage electrical appliance.
  • the apparatus is a switch, the said first operating shaft being controlled manually or automatically.
  • a power source driving an actuator, such as an electric motor.
  • said first cam portion is separated from said second cam portion by a boss constituting a brake during rotation of the cam.
  • control device controls the contacts of a vacuum interrupter.
  • a control device D of the poles of a medium-voltage electrical control device according to the invention such as a medium-voltage electrical switch, is seen, this control device being intended to control the contacts (not shown) of a light bulb. empty A.
  • This device comprises for each pole of the apparatus, a first pole control shaft 1, rotatable between an open position and a closed position of the contacts of the device.
  • This device also comprises a closing said spring 2 controlled by a shaft said second 3 crankshaft, operable by a user from the outside of the device to perform a maneuver manual opening or closing the device by drive of the control shaft says first 1.
  • This first said shaft comprises a crank 4 comprising a roller 5 adapted to cooperate with a cam system 6 controlled by the aforementioned spring 2 as will be explained in the following.
  • This spring 2 is supported by a 2a of its ends on a fixed point of the frame of the apparatus, and by its opposite end 2b, is mechanically connected to this cam system so that the maneuver of the shaft of compression of the spring, said second, in the closing direction, drives the cam system 6 in rotation and the compression of the spring until the spring passes beyond a neutral line of passage, after which the spring takes over to drive the cams 7,8, which then cooperate with the roller 5 to drive the said first shaft to a closed position of the contacts.
  • the opening of the contacts is achieved by the drive in the same direction of the said second control shaft.
  • This cam system 6 is rotatably mounted about an axis X corresponding to that of the said second shaft 3 for actuating the spring 2 and comprises, as illustrated in FIGS. Figures 7 to 10 a fixed cam 7 integral with said second shaft, and a so-called movable cam 8 rotatably mounted about this axis X with respect to the fixed cam 7 between two positions by means of two studs 9,10 integral with said second shaft cooperating respectively with two openings 11,12 provided in said cam said mobile, the rotational stroke of the movable cam being defined by the shape and dimensions of the openings and the position of the pads on the shaft said second.
  • cams 7.8 are mounted on the said second shaft 3, so as to be superimposed on one another, these two cams having the same profile, the movable cam being larger than the fixed cam so as to exceed this one side when superimposed.
  • Each of these cams is formed of three successive disk portions, namely a first and a second disk portion 13, 14 of the same radius separated by a protuberance 15, then a last portion 16 separated from the second portion 14 by a protrusion 17 having a radius greater than that of the last two aforesaid portions 13,14 and terminating in a spout 18.
  • first and second cam portions have substantially the same constant radius so as not to further compress the opening spring and contact pressure.
  • the aforementioned crank 4 is constituted by two flanges 19,20 parallel to each other connected by an axis 21 supporting the aforementioned roller 5, the roller 5 being intended to cooperate with the aforesaid cams 7,8.
  • the device is in the open position at the very beginning of a closing maneuver, in which position the compression spring 2 is in the partially compressed position, the roller 5 does not interfere with the outer surface of the cams.
  • the user drives the compression shaft 3 of the so-called second spring in rotation in the clockwise direction.
  • This rotation causes the rotation in the same direction of the two cams 7,8.
  • the movable cam 8 exceeds the fixed cam 7 on both sides thereof, this being due to the fact that it was driven by the roller 5 during the opening that preceded.
  • the aforementioned pads 9,10 move towards the first end 11a, 12a of openings 11,12 and are able to drive the movable cam 8 in rotation.
  • the movable cam protrudes from the fixed cam only at one end of the two cams, the end forming a spout 18, while at the opposite end, the two cams are superimposed.
  • the so-called second shaft 3 supplies the closing energy to a cam system 6 which retransmits this energy onto the first shaft 1 via a roller 5. From the moment when the roller is in contact with the cam and during the duration of the closing maneuver, this roller 5 remains in abutment on the surface of the cams, as shown in FIG. figure 4 .
  • the first part 13 of the cam makes it possible to maintain the closing of the control shaft 1 while the second part 14 makes it possible to absorb the excess energy of the control, by recompression of the closing spring 2 and friction of the roller 5 on the cams 7.8.
  • the profile of the cams is such that the roller remains in contact with the cams even with a very high excess energy, as illustrated in FIG. figure 5 .
  • a second operating orifice 23 mechanically connected to the first 22 by a gear system 24 is used. This makes it possible to reverse the operating direction, the operating shaft 3 being always driven in the same direction.
  • the movable cam thus allows the rapid opening of the device by the fact of its retraction, and therefore eliminates any component of effort of the shaft supporting the cams on the roller.
  • the movable cam 8 escapes under the effect of the roller 5 and does not slow the rotation thereof. So we do not have to continue compressing the spring 2 at the beginning of the rotation of the said first control shaft, as this would be the case in order to rotate the cams a little more in order to release the roller, if the moving cam was not present, and only a fixed cam was used. Continuing to compress the closing spring would result in a loss of opening speed.
  • This movable cam thus allows the control shaft of said poles first to be completely free at the beginning of the opening, as when releasing a snap.
  • This principle is based on a rotation in one direction and a so-called secondary shaft can be maintained in position.
  • a control device has thus been made thanks to the invention making it possible to keep the pole in the closed position by the closing cam which supplies the closing energy on the roller of the pole operating shaft.
  • This control device makes it possible to open the pole by rotating the shaft which supplies the closing energy, by compressing its spring, which makes it possible to store a part of the closing energy in its spring for a next maneuver.
  • a second cam has been created having a degree of freedom with respect to the first, so as not to slow down the opening of the pole control shaft, which otherwise could come into abutment on it via the roller.
  • a device for controlling the poles of an electrical switching device of simple design, has been realized in that this device does not include an attachment device for maintaining the control shaft. poles in the closed position.
  • the excess energy generated during the closing is managed by the recompression of the closing spring and the outer surface of the cam cooperating with the roller.
  • the profile of the cam absorbs excess energy without opening the device.
  • the shape of the cam is not limited to that in disc portion illustrated, but can take any form having a semi-spherical portion allowing the juxtaposition of the two cams, the holding in the closed position of the control shaft by a first cam portion and the absorption of excess energy by a second portion of the cam and a portion having means for retracting the movable cam by the roller.
  • This device also has a high opening speed in that the pole control shaft can be released quickly, as in a latching, at the beginning of the rotation of the control shaft to achieve the opening thanks to the retraction of the mobile cam eliminating any risk of shock and energy absorption.
  • the invention is applicable to any type of electrical control and / or protection equipment comprising a contact control device.

Landscapes

  • Transmission Devices (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP12306303.4A 2011-12-08 2012-10-22 Betätigungsvorrichtung für die Pole in einer elektrischen Mittelspannungsbetätigungseinrichtung Not-in-force EP2602804B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1103759A FR2984005B1 (fr) 2011-12-08 2011-12-08 Dispositif de commande des poles dans un appareil de commande electrique moyenne tension

Publications (2)

Publication Number Publication Date
EP2602804A1 true EP2602804A1 (de) 2013-06-12
EP2602804B1 EP2602804B1 (de) 2017-08-09

Family

ID=47215467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12306303.4A Not-in-force EP2602804B1 (de) 2011-12-08 2012-10-22 Betätigungsvorrichtung für die Pole in einer elektrischen Mittelspannungsbetätigungseinrichtung

Country Status (10)

Country Link
US (1) US9202643B2 (de)
EP (1) EP2602804B1 (de)
CN (1) CN103165300B (de)
AR (1) AR089127A1 (de)
AU (1) AU2012261539B2 (de)
BR (1) BR102012031087B1 (de)
CA (1) CA2796833C (de)
ES (1) ES2646178T3 (de)
FR (1) FR2984005B1 (de)
RU (1) RU2608172C2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3339673A1 (de) * 2016-12-22 2018-06-27 Schneider Electric Industries SAS Führungsvorrichtung einer feder in einem steuermechanismus, und elektrisches schutzgerät, das diese umfasst

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103400711B (zh) * 2013-08-19 2015-06-10 富英 一种大功率弹簧操动机构
CN104517754A (zh) * 2014-12-19 2015-04-15 江苏大全凯帆电器股份有限公司 增压机构
CN106098483B (zh) * 2015-04-30 2019-05-07 现代重工业株式会社 断路器
CN105206442B (zh) * 2015-10-21 2017-11-17 福州大学 一种三工位开关释放机构及其方法
CN113284761B (zh) * 2021-06-03 2022-03-04 珠海思玛特电气有限公司 四十点五千伏断路器开关合分闸省力驱动开关

Citations (3)

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Publication number Priority date Publication date Assignee Title
US3209101A (en) * 1963-01-08 1965-09-28 Allis Chalmers Mfg Co Motor and spring operated vacuum switch
US5140117A (en) * 1991-02-28 1992-08-18 Pmc Engineering Company, Inc. Two-link, trip-free mechanism for use in a switch assembly
US6437269B1 (en) * 2001-08-07 2002-08-20 Eaton Corporation Spring powered electrical switching apparatus with anti-rollover cam

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
GB8700265D0 (en) * 1987-01-07 1987-02-11 Hubbell Inc Harvey Electrical switches
FR2660109B1 (fr) * 1990-03-23 1992-06-05 Merlin Gerin Mecanisme de commande d'un interrupteur a trois positions.
US6072136A (en) * 1998-05-07 2000-06-06 Eaton Corporation Electrical switching apparatus with modular operating mechanism for mounting and controlling large compression close spring
US6160234A (en) * 1999-04-29 2000-12-12 Eaton Corporation Reduced drag ratchet
RU2295795C2 (ru) * 2005-04-26 2007-03-20 Открытое акционерное общество "Всероссийский научно-исследовательский и проектно-конструкторский институт электровозостроения" (ОАО "ВЭлНИИ") Многопозиционный переключатель
US8058580B2 (en) * 2009-09-16 2011-11-15 Eaton Corporation Electrical switching apparatus and linking assembly therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209101A (en) * 1963-01-08 1965-09-28 Allis Chalmers Mfg Co Motor and spring operated vacuum switch
US5140117A (en) * 1991-02-28 1992-08-18 Pmc Engineering Company, Inc. Two-link, trip-free mechanism for use in a switch assembly
US6437269B1 (en) * 2001-08-07 2002-08-20 Eaton Corporation Spring powered electrical switching apparatus with anti-rollover cam

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3339673A1 (de) * 2016-12-22 2018-06-27 Schneider Electric Industries SAS Führungsvorrichtung einer feder in einem steuermechanismus, und elektrisches schutzgerät, das diese umfasst
FR3061249A1 (fr) * 2016-12-22 2018-06-29 Schneider Electric Industries Sas Dispositif de guidage d'un ressort dans un mecanisme de commande et appareil de protection electrique le comportant
US10366847B2 (en) 2016-12-22 2019-07-30 Schneider Electric Industries Sas Device for guiding a spring in a control mechanism and electrical protection apparatus comprising same

Also Published As

Publication number Publication date
EP2602804B1 (de) 2017-08-09
BR102012031087B1 (pt) 2021-01-05
US9202643B2 (en) 2015-12-01
RU2012151532A (ru) 2014-06-10
CA2796833A1 (en) 2013-06-08
AU2012261539B2 (en) 2015-03-05
CA2796833C (en) 2020-12-15
ES2646178T3 (es) 2017-12-12
US20130186231A1 (en) 2013-07-25
AU2012261539A1 (en) 2013-06-27
CN103165300A (zh) 2013-06-19
FR2984005B1 (fr) 2014-08-01
AR089127A1 (es) 2014-07-30
RU2608172C2 (ru) 2017-01-17
CN103165300B (zh) 2019-04-19
FR2984005A1 (fr) 2013-06-14
BR102012031087A2 (pt) 2015-01-13

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