EP0080687A1 - Elektrischer Schalter mit Drehantrieb mit automatischer Rückstellung bei Spannungsabfall - Google Patents

Elektrischer Schalter mit Drehantrieb mit automatischer Rückstellung bei Spannungsabfall Download PDF

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Publication number
EP0080687A1
EP0080687A1 EP82110800A EP82110800A EP0080687A1 EP 0080687 A1 EP0080687 A1 EP 0080687A1 EP 82110800 A EP82110800 A EP 82110800A EP 82110800 A EP82110800 A EP 82110800A EP 0080687 A1 EP0080687 A1 EP 0080687A1
Authority
EP
European Patent Office
Prior art keywords
lever
core
notch
axis
switch
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
EP82110800A
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English (en)
French (fr)
Other versions
EP0080687B1 (de
Inventor
André Borne
André Marmonier
Etienne Briguet
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.)
Cegelec SA
Original Assignee
Cegelec SA
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 Cegelec SA filed Critical Cegelec SA
Publication of EP0080687A1 publication Critical patent/EP0080687A1/de
Application granted granted Critical
Publication of EP0080687B1 publication Critical patent/EP0080687B1/de
Expired 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
    • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/12—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection

Definitions

  • the present invention relates to an electric switch, with rotary control, automatically recalled to rest in the absence of voltage.
  • Such a rotary electrical switch conventionally comprises a plurality of contacts arranged in groups, for example in pairs, on stepped wafers.
  • Each of the contacts of a group includes a mobile element and a fixed element, the mobile element has its movement controlled by an operating axis common to the different wafers and generally located in their center.
  • the operating axis is provided with cams arranged on each wafer stage so as to selectively control the movements of the movable elements of the contacts according to the rotation of the axis, under the action of a manual or servo-controlled command.
  • An automatic return device in the rest position is frequently added to these switches in the event of a significant drop in electrical voltage, for example to avoid inadvertent control of the electrical members controlled by the switch after a cut in the electrical current supplied to this switch.
  • Such a reminder device is described in particular in document FR-A 2 481 514. It plans to provide the operating axis with a restoring spring arranged concentrically and with a cam cooperating with two levers arranged so as to be sensitive to the position of the core of an electromagnet supplied under the tension that we want to monitor.
  • the electromagnet When the electromagnet is normally supplied it is possible to position the operating axis in an engaged position ensuring the desired electrical switching and to maintain it there.
  • the electromagnet is not sufficiently supplied, the position of the core and its action on the levers triggers the return to the rest position of the operating axis by means of its return spring.
  • Such a device has the drawback of requiring the provision of a contact for energizing the electromagnet which must be closed at the start of the manual operation in order to allow hooking the levers and maintaining the engaged position.
  • This switch-on contact actuated before the others complicates the switch and can lead to the addition of an additional wafer otherwise useless, for example in the case where four contacts are necessary for the control of the electrical component controlled and that each wafer is intended for two or four contacts.
  • the present invention therefore provides a rotary electrical switch with automatic return in the absence of voltage, which overcomes the drawbacks mentioned above insofar as it accepts being supplied with control voltage at any time during the maneuver. of engagement.
  • the rotary electrical switch conventionally has an operating axis provided with a return spring at rest, with an electromagnet with a movable core, the release of which on the appearance of a loss of voltage triggers the recall and an arrangement of three levers hooked together in pairs when the switch is on.
  • a first lever is secured to the operating axis, a second lever provided with a return spring rocks around a central fixed axis under the respective actions of the released core and an opposing spring.
  • a third lever is rotatable around a fixed axis located at one of its ends and is provided with a return spring to ensure on the one hand the maintenance in the working position of the operating axis and the first lever by hooking with the other two levers and on the other hand the release of the first lever and the reminder when it is released by the second lever moved by the release of the core.
  • the first and second levers have their axes arranged on the same side of the third lever which has in its middle a locking notch for the first lever and at its free end a notched transverse duct in which the end of the second lever, which is furthest from the core, is movable, said end comprising a hooking spout located opposite and on the other side of this lever relative to the core, so as to hook the notch of the conduit when the core is retracted under the action of the electric voltage applied to the electromagnet and the axis of maneuver is placed in the latching position.
  • the notch of the transverse conduit is applied to the bearing face of the hooking spout at an obtuse angle favoring the stall and in that the return spring of the operating shaft produced a force on the second lever which prevents the stall in the absence of relaxation of the core, the three remaining levers hooked under the opposing actions of the return spring of the operating shaft and the return springs of the second and third levers.
  • the force of the return spring of the operating shaft, as applied to the second lever in the engaged position of the switch is greater than that of the return spring of the second lever, so that the first lever emerges from the blocking notch of the third lever ', under the action of the return spring of the operating shaft, in the event of release of the hooking spout under the action of the released core.
  • the example of a rotary switch presented in FIG. 1 conventionally comprises stepped pancakes 1, carrying connection terminals 2 connected to fixed contact elements which cooperate with other movable contact elements under the action of an axis of maneuver 3 to ensure the establishment and / or cutting of electrical connections depending on the position of the operating axis 3.
  • FIG. 2 presents a top view of a wafer 1 showing the position of the connection terminals 2, of the operating axis 3 of the fixed 5 and mobile 6 elements of the contacts.
  • four connection terminals 2a, 2b, 2c, 2d are connected to as many fixed contact elements 5a, 5b, 5e, 5d which are capable of being connected two by two via elements.
  • mobile 6a-6b, 6c-6d controlled two by two by control pistons 7ab and 7cd.
  • Each piston 7 comprises a pair of movable contacts per element, such as 6a and 6b for the piston 7ab, which move with the latter under the action of a cam 8 driven in rotation by the operating axis 3.
  • This operating axis 3 is provided with a handle or a servo-control not shown so that it can be operated from the outside of the switch, it also passes through the housing containing the automatic return mechanism in the rest position.
  • FIGS. 3A to 3F This box and its mechanism are symbolized at various stages of operation in FIGS. 3A to 3F and are specified in FIGS. 4 and 5.
  • the mechanism uses an electromagnet 9 with a movable core 10, a release arrangement with three levers 11, 12, 13 each provided with return springs 14, 15, 16; there is also shown a control handle 17 presented above the housing in Figures 3, this handle being secured to the top of the operating shaft 3 in the case of a manually controlled switch.
  • the control axis 3 is provided with a lever 11, called the first lever, which is subject to it so as to rotate with it, this axis comprises a concentric return spring 14 which tends to bring it back from the control position such that shown in 3D to the rest position shown in 3A or possibly 3E.
  • This spring 14 is conventionally supported on a fixed point of the housing symbolized by the arrow 19 and on a cleat 20 secured to the lever 11, two stops symbolized by the arrows 21 and 22 limit the stroke of the lever 11 and therefore the rotation of the operating axis 3, for example at a quarter turn.
  • the lever 12, said second lever rocks around a fixed axis 23 which is disposed on the same side of the lever 13 as the operating axis 3, this fixed axis 23 is placed in the central zone of the lever 12 so as to provide two uneven arms, it switches between two fixed positions under the respective actions of the core 10 in the relaxed position and the opposing spring 15.
  • These two fixed positions are limited by the dimensions of a notched transverse conduit 24 formed at the free end of the third lever 13, situated approximately parallel to the axis of movement of the movable core 10.
  • the end of the second lever 12 penetrates inside the transverse conduit 24 in which it has a certain mobility in the plane of FIGS. 3, that is to say perpendicular to the axis 23.
  • a hooking spout 26 is formed opposite and on the other side of the second lever 12 relative to the core 10, this hooking spout 26 and capable of cooperating with a notch 27 of the transverse conduit 24 so as to keep the levers 12 and 13 hooked together under certain conditions defined below.
  • the lever 13 is capable of oscillating around a fixed axis 28 placed at its end opposite to that which comprises the transverse conduit 24, this axis is disposed beyond the axis 3 so as to allow the lever 11 to be blocked in engaged position (1) of the operating axis 3 by means of a locking notch 29 formed in the middle of said lever 13 facing said operating axis 3.
  • a roller 30 carried by the cleat 20 of the lever 11 comes to bear on the locking notch 29 when the operating pin 3 is in the engaged position.
  • the return spring 16 returns the lever 13 to the rest position by resting on a wall of the housing 4.
  • the electromagnet 9 is supplied via one of the contacts of the switch, for example on the or one of the supply phases, as soon as the contacts are established, after complete rotation of the operating shaft 3, the core 10 is retracted (fig.3D) the lever 12 is pushed back by the spring 15 and the hooking spout 26 engages with the notch 27 of the transverse conduit 25.
  • the notch 27 of the transverse duct is applied to the bearing face of the hooking spout 26 at an obtuse angle favoring the stall.
  • the opposing actions of the maneuvering axis return spring 14 and the springs 15 and 16 of the levers keep the three levers hooked two by two.
  • a twist of the operating axis manually or by servo-mechanism makes it possible to return to the rest position (0) by making the action of the first lever 11 preponderant and by destroying the balance otherwise established.
  • the notch 27 slides on the wall of the hooking spout 26 and the lever 13 rotates by crushing the spring 16, the roller 30 is released and returns to the rest position (fig.3F).
  • the rotation of the operating axis 3 opens the contacts and cuts off the supply of the electromagnet 9, the core 10 of which is released.
  • the electromagnet 9 with a voltage not controlled by contacts of the switch.
  • FIG. 4 shows diagrammatically the positioning of the elements of the mechanism internal to the housing and in particular the three levers 11, 12, 13, the electromagnet 9 and its core 10 as well as the springs 14, 15, 16.
  • the return spring 14 concentric with the operating axis 3 of the switch is supported on a stop 19 of the housing and on the cleat 20 of the lever 11.
  • the lever 11 is here composed of two distinct parts 11A and 11B, the part 11A comes plug into the cleat 20 to allow it to withstand the mechanical stresses imposed on it by the return spring 14.
  • the roller 30 carried by the cleat 20 is housed under the locking notch 29 between this notch and the end of the lever 13 which comprises the transverse duct 24 containing the end 25 of the lever 12.
  • the axis 28 of the lever 13 is not shown, it is an integral part of the housing as are the bearings of the axis 23, and the bearings of the axis 3 at the level of the parts 11A and 11B of the lever 11.
  • the variant shown in FIG. 6 corresponds to an electrical switch, with rotary control, automatically recalled when at rest in the absence of voltage, which has three switching positions, ie an additional position relative to the real sation mentioned before. This is to obtain two control positions in addition to the rest position to which the switch is returned in the absence of voltage regardless of the control position established at the time when the supply voltage of the electro- magnet, here referenced 9A, disappears.
  • the return mechanism elements presented in FIG. 6 are practically identical to those presented in FIG. 4, with the exception of the third lever here referenced 13A, the various elements common to the two figures being assigned an index A on the Figure 6.
  • the lever 13A has an additional locking notch 31 disposed between the central locking notch 29A and the end axis 28A around which the lever 13A rotates.
  • the additional locking notch 31 is of course placed on the same side of the third lever 13A as the median locking notch 29A so as to cooperate with the roller 30A of the first lever 11A in the same way as this median locking notch.
  • the rotation of the operating axis 3A causes the lever 13A to be raised by the action of the roller 20A on the additional locking notch 31 then the return to the position of this last under the action of the spring 16A with attachment of the second lever 12A in the third lever 13A, if the movable core 10A of the electromagnet 9A is in the retracted position due to the presence of a sufficient electrical supply voltage electromagnet. If the rotation of the operating axis 3A is not continued, a first stable control position of the switch is obtained and maintained as long as the electromagnet 9A is suitably supplied and the operating axis 3A is not manipulated.
  • the roller 20A again raises the third lever 13A by acting on the central locking notch 29A. After the roller 20A has passed beyond this notch 29A, a second stable position for controlling the switch is then obtained in the manner previously mentioned by such a notch 29.
  • each control position corresponds to a selective actuation different from the switch contacts.

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP82110800A 1981-11-26 1982-11-23 Elektrischer Schalter mit Drehantrieb mit automatischer Rückstellung bei Spannungsabfall Expired EP0080687B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8122132 1981-11-26
FR8122132A FR2517114A1 (fr) 1981-11-26 1981-11-26 Commutateur electrique a commande rotative rappele automatiquement en l'absence de tension

Publications (2)

Publication Number Publication Date
EP0080687A1 true EP0080687A1 (de) 1983-06-08
EP0080687B1 EP0080687B1 (de) 1985-05-29

Family

ID=9264387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82110800A Expired EP0080687B1 (de) 1981-11-26 1982-11-23 Elektrischer Schalter mit Drehantrieb mit automatischer Rückstellung bei Spannungsabfall

Country Status (5)

Country Link
US (1) US4481492A (de)
EP (1) EP0080687B1 (de)
DE (1) DE3263933D1 (de)
ES (1) ES8308151A1 (de)
FR (1) FR2517114A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295236A2 (de) * 1987-06-09 1988-12-14 Naimer, Hubert Laurenz Handbetätigter Ein-Aus-Schalter mit elektromagnetischer Auslösung
GR890100738A (en) * 1988-11-10 1990-12-31 Knudsen Nordisk Elect A multi-pole switch comprising a tripping module
EP0428168A2 (de) * 1989-11-16 1991-05-22 Giampietro Tosi Schalter mit Sicherheits-Antriebsvorrichtung
WO1994024689A1 (de) * 1993-04-10 1994-10-27 Felten & Guilleaume Energietechnik Aktiengesellschaft Elektromagnetischer schaltmechanismus für elektrische schutzschaltgeräte

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569934B1 (fr) * 1984-09-06 1986-09-05 Alsthom Cgee Boitier modulaire pour appareillage electrique
DE102005043587B4 (de) * 2005-06-02 2009-04-02 Preh Gmbh Drehsteller mit programmierbarer Haptik
ES2383293T3 (es) 2008-04-01 2012-06-20 Ewac Holding B.V. Conmutador eléctrico rotatorio
FR3029009B1 (fr) * 2014-11-21 2017-01-06 Socomec Sa Systeme de commande a declenchement pour pole de coupure et appareil de coupure
CN113963966B (zh) * 2020-07-20 2022-09-06 上海良信电器股份有限公司 一种分闸开关和远程断路器
CN113963978B (zh) * 2020-07-20 2023-01-10 上海良信电器股份有限公司 一种旋转开关
CN113963979B (zh) * 2020-07-20 2023-01-10 上海良信电器股份有限公司 一种远程分闸机构及旋转开关
CN111863496A (zh) * 2020-07-20 2020-10-30 上海良信电器股份有限公司 一种储能状态监测结构及旋转开关

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE731081C (de) * 1938-05-03 1943-02-01 Berker Geb Elektromagnetischer Fehlerstrom- (Differential-) oder UEberstrom-Schalter
FR2268346A1 (en) * 1974-04-19 1975-11-14 Elektra Tailfingen Low voltage cut-off switch for electric motor - has lever system controlled by electromagnet and switching shaft
FR2481514A1 (fr) * 1980-04-25 1981-10-30 Alsthom Cgee Dispositif de rappel automatique par manque de tension de la commande d'un commutateur rotatif

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001740A (en) * 1975-06-27 1977-01-04 Electro Switch Corporation Control switch relay and control circuit means

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE731081C (de) * 1938-05-03 1943-02-01 Berker Geb Elektromagnetischer Fehlerstrom- (Differential-) oder UEberstrom-Schalter
FR2268346A1 (en) * 1974-04-19 1975-11-14 Elektra Tailfingen Low voltage cut-off switch for electric motor - has lever system controlled by electromagnet and switching shaft
FR2481514A1 (fr) * 1980-04-25 1981-10-30 Alsthom Cgee Dispositif de rappel automatique par manque de tension de la commande d'un commutateur rotatif

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295236A2 (de) * 1987-06-09 1988-12-14 Naimer, Hubert Laurenz Handbetätigter Ein-Aus-Schalter mit elektromagnetischer Auslösung
EP0295236A3 (en) * 1987-06-09 1990-05-23 Naimer, Hubert Laurenz Hand operated on-off switch with electromagnetic release
GR890100738A (en) * 1988-11-10 1990-12-31 Knudsen Nordisk Elect A multi-pole switch comprising a tripping module
EP0428168A2 (de) * 1989-11-16 1991-05-22 Giampietro Tosi Schalter mit Sicherheits-Antriebsvorrichtung
EP0428168B1 (de) * 1989-11-16 1997-05-21 Giampietro Tosi Schalter mit Sicherheits-Antriebsvorrichtung
WO1994024689A1 (de) * 1993-04-10 1994-10-27 Felten & Guilleaume Energietechnik Aktiengesellschaft Elektromagnetischer schaltmechanismus für elektrische schutzschaltgeräte
TR28262A (tr) * 1993-04-10 1996-05-23 Felten & Guilleaume Energie Elektrikli sigortali anahtar üniteleri icin elektromanyetik salter mekanizmasi.
CN1036812C (zh) * 1993-04-10 1997-12-24 费尔腾和古伊勒奥梅能源股份公司 用于电保护开关的电磁式开关机构

Also Published As

Publication number Publication date
ES517670A0 (es) 1983-08-16
FR2517114A1 (fr) 1983-05-27
ES8308151A1 (es) 1983-08-16
FR2517114B1 (de) 1983-12-30
DE3263933D1 (en) 1985-07-04
EP0080687B1 (de) 1985-05-29
US4481492A (en) 1984-11-06

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