EP0952595A2 - Mécanisme de commutation pour un disjoncteur électrique - Google Patents

Mécanisme de commutation pour un disjoncteur électrique Download PDF

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Publication number
EP0952595A2
EP0952595A2 EP99107235A EP99107235A EP0952595A2 EP 0952595 A2 EP0952595 A2 EP 0952595A2 EP 99107235 A EP99107235 A EP 99107235A EP 99107235 A EP99107235 A EP 99107235A EP 0952595 A2 EP0952595 A2 EP 0952595A2
Authority
EP
European Patent Office
Prior art keywords
gear
mechanism according
switch mechanism
structural unit
gear wheel
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
EP99107235A
Other languages
German (de)
English (en)
Other versions
EP0952595A3 (fr
EP0952595B1 (fr
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.)
Jean Mueller Elektrotechnische Fabrik GmbH
Original Assignee
Jean Mueller Elektrotechnische Fabrik GmbH
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 Jean Mueller Elektrotechnische Fabrik GmbH filed Critical Jean Mueller Elektrotechnische Fabrik GmbH
Publication of EP0952595A2 publication Critical patent/EP0952595A2/fr
Publication of EP0952595A3 publication Critical patent/EP0952595A3/fr
Application granted granted Critical
Publication of EP0952595B1 publication Critical patent/EP0952595B1/fr
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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/54—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts
    • H01H3/58—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts using friction, toothed, or other mechanical clutch
    • 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
    • H01H3/227—Interlocked hand- and power-operating mechanisms

Definitions

  • the invention relates to a switching mechanism for an electrical load switch, with a switching behavior of the switch contacts of the switch that is independent of the actuation of an actuating means of the switching mechanism, the actuating means interacting in a movement-locking manner with a driver element, which interacts via a freewheel with a switching element that triggers the actual switching process.
  • the actuating means has an electric motor and a gear such that a gear pinion interacts with the output shaft of the electric motor in a movement-locking manner and a gear wheel interacts with the driver element in a movement-locking manner, and in the emergency mode of the switching mechanism the gear wheel can be rotated manually.
  • Such a switching mechanism is known from EP 0 802 548 A2.
  • the direct drive has the consequence that the movement of the electric motor and the driver element, and thus taking into account the freewheel also the movement of the switching element is reproducible, so that a defined movement of the electric motor leads to a defined movement of the switching element.
  • the gear wheel can be rotated manually. When the gearwheel is turned manually, the other components of the gearbox, which are in engagement with it, and the electric motor must also be moved. Switching in emergency mode is therefore associated with a relatively high expenditure of force.
  • the object is achieved in a rear derailleur of the type mentioned in that the gear pinion and the gear wheel can be brought into the disengaged position.
  • the actuating forces for switching in emergency operation can be significantly reduced, which can be recorded, in particular when the transmission is designed as a planetary gear and this bevel gear transmission, the bevel gear transmission having the gear pinion and the gear wheel.
  • the actuating forces for switching in emergency operation correspond approximately to the actuating forces that would be required to switch the contacts if the switchgear were designed without a motor drive.
  • the electric motor and the gear pinion form part of a structural unit which is relatively displaceable relative to the gear wheel.
  • the gear pinion and the gear wheel can be disengaged or engaged particularly structurally if the structural unit is displaceable in the direction of the axis of rotation of the gear pinion.
  • the structural unit and the gearwheel are preferably held in a bearing part, the structural unit being displaceably mounted in the bearing part parallel to the axis of rotation of the gear pinion.
  • the component can be provided with a plurality of guide pins which penetrate the guide bores in the bearing part.
  • bearing cheeks in the bearing part can support the structural unit, in particular in the area of the electric motor / planetary gear.
  • the displacement of the assembly relative to the gear wheel is carried out by means of an actuator.
  • This is fixed in place, for example in the bearing part, and interacts with the structural unit.
  • An expedient constructive design of the actuator provides that it has a cam slot into which an adjusting pin connected to the structural unit engages.
  • the structural unit is separated from the gearwheel when moving the actuating part in one direction, whereas the structural unit is drawn to the gearwheel by means of the other curve when moving the actuator in the other direction, in order to close the gear pinion and the gearwheel in the engaged position bring.
  • the slot preferably has at least one in it the engagement position of the transmission corresponding position on a detent. This ensures that the gear wheel and gear pinion cannot inadvertently be separated, for example as a result of shocks, vibrations, etc.
  • the actuator is preferably mounted in the bearing part and has a receptacle for an actuating means.
  • the receptacle is expediently designed as a hexagon socket for receiving a hexagon tool.
  • This actuating means serves not only the purpose of disengaging the gear wheel and the gear pinion, but also the subsequent turning of the gear wheel in order to carry out the switching operation.
  • the gear wheel or a component connected to it in a rotationally fixed manner is also provided with a hexagon socket.
  • the electrical load switch has a cover in which the motorized actuator for the switching mechanism is integrated.
  • the component of the switching mechanism which receives the structural unit and the gear wheel should be integrated in the cover of the electrical load switch, the actuator not only in the bearing part but also in a cover of the cover, thus being supported on both sides.
  • the cover of the cover is advantageously provided with openings, the actuating means for the actuator being operable through one opening and the gear wheel being operable through the other opening.
  • the cover 1 which closes the housing of the electrical circuit breaker and which is pivotally mounted in the end region 2 in the housing and lockable with the housing in its end region 3 accommodates a bearing part 4 which serves to accommodate the motor drive components of the rear derailleur and the control and display electronics. These components are covered by a hood 5.
  • the front half of the hood 5 has been broken away to allow a view of the components covered by the hood 5.
  • FIGS. 1, 2 and 5 to 7 illustrate the design and the arrangement of the components effecting the motor drive of the switching mechanism or of the components interacting with them.
  • a structural unit 6 is formed by an electric motor 7 designed as a direct current motor, a planetary gear 8 driven by the latter, and a gear pinion 9 driven by the latter, which is designed as a conical gearwheel.
  • the assembly 6 is elongated and has a cylindrical housing 10, in particular in the middle section, which is assigned to the planetary gear 8. In the area of the gear pinion 9, the housing 10 is provided on the end face with two guide pins 11 arranged parallel to the axis of rotation of the gear pinion 9.
  • the bearing part 4 has a bearing block 12 which is positioned perpendicular to its longitudinal extent and perpendicular to the axis of rotation of the gear pinion 9 and which is provided with a through hole 13. Relative to this through-bore 13, two guide bores 14, which pass through the bearing block 12 and are arranged parallel to the axis of rotation of the gear pinion 9, are provided in the bearing block 12, arranged diametrically to one another.
  • the assembly 6 can be inserted into the bearing block 12 by engaging the two guide pins 11 in the two guide bores 14, the length of the guide pins 11 is approximately twice the length of the guide bores 14. When the unit 6 inserted in the bearing block 12, this becomes supported in the area of the housing 10 by two bearing cheeks 16 arranged in the area of the two longitudinal sides of the bearing plate 15 of the bearing part 4 contacting the housing 10.
  • the bearing block 12 has a recess 17 for the pivotable mounting of an actuator 18 in an axis perpendicular to the axis of rotation of the gear pinion 9.
  • the actuator 18 is provided with a cam slot 19, in which engages an adjusting pin 20 arranged parallel to the pivot axis of the actuator 18 and connected to the housing 10 in the region of the planetary gear 8.
  • a gear wheel 22, which represents the complementary component to the gear pinion 9, is pivotably mounted about an axis parallel to the pivot axis of the actuator 18.
  • the gear wheel 22 is axially immovably mounted in the bearing plate 15, the driver element being firmly connected to the gear wheel 22, as described for EP 0 802 548 A2, which has two driver pins which cooperate with a switching element, also not shown, designed as a switching socket , which has a freewheel recess.
  • a gearwheel 23 is fixedly connected to the gearwheel 22, which transmits its rotational movement via a toothed belt 24 to a further gearwheel 25, which is connected in a rotationally fixed manner to the output shaft of a rotary angle sensor 26. This is electrically connected to external software for monitoring and controlling the load switch and its motor-driven switching mechanism.
  • the gear pinion 9 meshes with the conical gear wheel 22.
  • the housing 10 of the assembly 6 is moved against the bearing block 12 and the free ends of the guide pins 11 protrude from the area of the gear wheel 22 Bearing block 12 out.
  • the displaceable structural unit 6 is fixed in this position due to a special design of the control slot 19 of the actuator 18. Its inner positioning curve 27 and its outer positioning curve 28 have curve jumps 29 in the region of the curve slots 29 assigned to this position of the structural unit 7, in the region of which the adjusting pin 20 is fixed.
  • the actuator 18 is pivoted by means of the hexagonal tool.
  • the actuator 18 which is made of flexible material, deforms in the region of the curve jumps 29, so that the adjusting pin 20 can be moved out of the catch.
  • the inner cam 27, which moves away from the fulcrum of the actuator 18, pushes the adjusting pin 20 away from the fulcrum of the actuator 18 and thus shifts the assembly 6 from the gear wheel 22, so that it disengages from the gear pinion 9 .
  • the actuator 18 is rotated in the opposite direction.
  • the outer positioning curve 28 pulls the assembly 6 in the direction of the gear wheel 22 via the positioning pin 20.
  • the hood 5 can also serve for the further storage of the actuator 18. This is provided concentrically with its pivot axis with a ring extension 30 which engages in a corresponding circular opening 32 in the hood 5, as illustrated in FIG. 1.
  • the structural unit 6 comprising the electric motor 7 and the planetary gear 8 is first separated from the gear wheel 22 by pivoting the actuator 18.
  • the same hexagon tool is then inserted into a socket 31 of the gearwheel 23 designed as a hexagon socket, so that the switching mechanism can be actuated without having to move the electromotive drive train as well.
  • the hood 5 is not removed in emergency operation, but the receptacles 21 and 31 for the hexagon tool are accessible through openings in the hood 5.

Landscapes

  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
  • Retarders (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Transmission Devices (AREA)
EP99107235A 1998-04-20 1999-04-14 Mécanisme de commutation pour un disjoncteur électrique Expired - Lifetime EP0952595B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19817400 1998-04-20
DE19817400A DE19817400C1 (de) 1998-04-20 1998-04-20 Schaltwerk für einen elektrischen Lastschalter

Publications (3)

Publication Number Publication Date
EP0952595A2 true EP0952595A2 (fr) 1999-10-27
EP0952595A3 EP0952595A3 (fr) 2000-06-07
EP0952595B1 EP0952595B1 (fr) 2002-07-10

Family

ID=7865067

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99107235A Expired - Lifetime EP0952595B1 (fr) 1998-04-20 1999-04-14 Mécanisme de commutation pour un disjoncteur électrique

Country Status (3)

Country Link
EP (1) EP0952595B1 (fr)
DE (2) DE19817400C1 (fr)
ES (1) ES2180238T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001097241A2 (fr) * 2000-06-16 2001-12-20 Tyco Electronics Logistics Ag Actionneur de coupe-circuit
FR2904470B1 (fr) * 2006-07-31 2008-11-07 Areva T & D Sa Dispositif de commande d'un appareillage electrique moyenne ou haute tension et procede de commande d'un dispositif de commande d'un appareillage electrique moyenne ou haute tension
DE102010003787A1 (de) * 2010-04-09 2011-10-13 Siemens Aktiengesellschaft Antriebseinrichtung zur Fernbetätigung eines Schalters
DE102015217410A1 (de) * 2015-09-11 2017-03-16 Siemens Aktiengesellschaft Übertragungsvorrichtung zum Koppeln oder Entkoppeln eines Poles eines elektrischen Schaltgerätes für Nieder-, Mittel- oder Hochspannung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237857A2 (fr) * 1986-03-14 1987-09-23 BBC Brown Boveri AG Dispositif d'entraînement pour un sectionneur électrique
EP0427641A1 (fr) * 1989-11-06 1991-05-15 Schneider Electric Sa Dispositif de télécommande pour disjoncteur électrique
EP0802548A2 (fr) * 1996-04-19 1997-10-22 Jean Müller GmbH Elektrotechnische Fabrik Mécanisme de commutation pour un disjoncteur électrique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237857A2 (fr) * 1986-03-14 1987-09-23 BBC Brown Boveri AG Dispositif d'entraînement pour un sectionneur électrique
EP0427641A1 (fr) * 1989-11-06 1991-05-15 Schneider Electric Sa Dispositif de télécommande pour disjoncteur électrique
EP0802548A2 (fr) * 1996-04-19 1997-10-22 Jean Müller GmbH Elektrotechnische Fabrik Mécanisme de commutation pour un disjoncteur électrique

Also Published As

Publication number Publication date
EP0952595A3 (fr) 2000-06-07
ES2180238T3 (es) 2003-02-01
DE59901982D1 (de) 2002-08-14
DE19817400C1 (de) 1999-09-09
EP0952595B1 (fr) 2002-07-10

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