EP0797230B1 - Fernsteuerungsvorrichtung mit Getriebemotor mit einer Fliehkraftkupplung - Google Patents

Fernsteuerungsvorrichtung mit Getriebemotor mit einer Fliehkraftkupplung Download PDF

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Publication number
EP0797230B1
EP0797230B1 EP19970410031 EP97410031A EP0797230B1 EP 0797230 B1 EP0797230 B1 EP 0797230B1 EP 19970410031 EP19970410031 EP 19970410031 EP 97410031 A EP97410031 A EP 97410031A EP 0797230 B1 EP0797230 B1 EP 0797230B1
Authority
EP
European Patent Office
Prior art keywords
rotor
remote control
motor
control device
bell
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 - Lifetime
Application number
EP19970410031
Other languages
English (en)
French (fr)
Other versions
EP0797230A1 (de
Inventor
Michel Effosse
Alain Peccave
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 EP0797230A1 publication Critical patent/EP0797230A1/de
Application granted granted Critical
Publication of EP0797230B1 publication Critical patent/EP0797230B1/de
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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/66—Power reset mechanisms
    • H01H71/70—Power reset mechanisms actuated by 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

Definitions

  • Such a device according to the preamble of claim 1 is described for example in CH-A-142 573.
  • the arrangement of the centrifugal clutch between the motor and the speed reducer requires careful axial alignment of the different elements to prevent premature wear of the speed reducer gears.
  • the mounting such a device is complicated.
  • the starting direction of the engine is random depending on the type of electric motor used. It is classic for motors synchronous to make use of a non-return ratchet to impose a direction of rotation predetermined.
  • Known pawls operate by friction effect, and are subjected to a premature wear.
  • the object of the invention is to provide a geared motor equipped with a clutch quick and easy assembly centrifuge.
  • the means for driving the bell comprise a friction lining fixed on the internal lateral surface.
  • the outer periphery of the bell is shaped according to a hooking toothing capable of cooperating with locking means following the stopping of the engine.
  • the rotor is provided with stop means intended for cooperate with a ratchet to determine the starting direction of the engine.
  • the stop means comprise at least one tooth disposed axially opposite to the insert and that the pawl is articulated on an axis being polarized by a spring on said tooth.
  • the metal insert of the material rotor plastic is extended by a cylindrical rod, having a semi-spherical end bearing on a flat bottom of the hole, in the inserted position of the rotor in the bell.
  • a remote control module 10 for a circuit breaker block comprises an insulating housing 12 enclosing a geared motor assembly 14 serving as a drive member for a lever 15 associated with a transmission link (not shown) to authorize the opening and closing of the circuit breaker.
  • the operation of the transmission link is described in detail in document FR-A-2699733.
  • the geared motor assembly 14 is equipped with an electric motor 16 with alternating current mechanically coupled to a speed reducer by means of a centrifugal clutch 18.
  • the motor 16 comprises a stator 20 with inductor, and a rotary armature 22 equipped an axis 24 for driving the clutch 18.
  • the reciprocating motor 16 is an asynchronous motor with a direction of random start, but any other type of motor can be used.
  • the centrifugal clutch 18 comprises a rotor 26 with two weights 28, 30, capable of spreading radially under the effect of the centrifugal force, the rotor 26 being arranged inside a clutch bell 32 in annular shape.
  • the axis 24 of the motor 16 is fitted into an orifice 34 of an insert 36 of the rotor 26, and stop means 38 are located on the side of the orifice 34, and on the face of the rotor 26 located opposite the motor. 16.
  • the clutch 18 is produced by molding a plastic material, the rotor 26 constituting the driving element, and the bell 32 forming the driven element.
  • the internal lateral surface of the annular bell 32 is coated with a friction lining 40, which cooperates with the ends of the two flyweights 28, 30 of the rotor 26 during the rotation of the motor 16.
  • the abutment means 38 of the rotor 26 include a pair of teeth 42, 44 diametrically opposite with respect to the orifice 34, and intended to cooperate with a pawl 46 to determine the direction of starting of the motor 16.
  • the pawl 46 is articulated on a fixed axis 48 (FIGS. 8 to 10) , and is biased by a spring 50 on the teeth 42, 44 of the stop means 38.
  • the clutch bell 32 is provided with an axial protuberance 52 with a blind hole 54 for housing the insert 36 of the rotor 26.
  • a pinion 56 is arranged on the external cylindrical surface of the protuberance 52 to serve as an organ d drive of the speed reducer.
  • the outer periphery of the bell 32 has a hooking toothing 58 capable of cooperating with a locking lever 60 (FIG. 1) pivotally mounted on an axis 62 between a locking position. , and an unlocking position.
  • the locking lever 60 is actuated between the locking and unlocking positions by means of an electromagnet 64, the excitation of which occurs at the end of the closing stroke following the stopping of the motor 16.
  • the metal insert 36 of the plastic rotor 26 is extended by a cylindrical rod 66 having a semi-spherical end 68 constituting a ball, which bears on the flat bottom of the hole 54 in the inserted position of the rotor 26 in the bell 32.
  • the coming into axial engagement of the rod 66 of the insert 36 on the bottom of the hole 54 takes place at a contact point, so as to reduce the frictional forces during the rotation of the rotor 26.
  • a polarization blade 70 ( Figure 1) in flexible elastic material, is fixed on a stud 72 of the housing cover 12, and its opposite end bears on the protuberance 52 of the bell 32 to suppress all the mechanical vibrations that may be generated during the rotation of the centrifugal clutch 18.
  • the clutch bell 32 fulfills a first coupling function when the counterweights 28, 30 come into contact against the friction lining 40, a second support function of the pinion 56 for driving the speed reducer, and a third stop function by the action of the locking lever 60 on the hooking toothing 58 during the excitation of the electromagnet 64.
  • the insert 36 of the rotor 26 serves as a cantilever support for the bell 32 of the clutch and of the guiding member in rotation of the pinion 56.
  • the teeth 42, 44 of the abutment means 38 of the rotor 26 cooperate with the pawl 46 to serve as a unidirectional starting member for the rotary motor 16.
  • FIG. 8 represents the centrifugal clutch in the inactive position during the stopping of the engine 16.
  • the counterweights 28, 30 remain stationary and separated from the friction lining 40 by a radial clearance.
  • the pawl 46 is supported on one of the teeth 42, 44 by the action of the associated spring 50.
  • the motor 16 when powered, has a random start direction.
  • the teeth 42, 44 of the abutment means 38 push the pawl 46 against the elastic force of the spring 50, allowing the rotation of the rotor 26 , and the radial spacing of the counterweights 28, 30 against the lining 40 under the effect of centrifugal force.
  • the clutch bell 32 is then rotated, as well as the pinion 56 of the speed reducer.
  • the action of the elastic blade 70 on the protuberance 52 of the bell 32 allows regular rotation of the clutch 26, and eliminates any mechanical vibration.
  • the motor 16 starts in the undesired direction (FIG. 10)
  • one of the teeth 42, 44 of the rotor 26 abuts against the end of the pawl 46. This results in a mechanical shock which instantly stops the rotor 26, and starts the motor 16 in the other direction of rotation.
  • the electromagnet 64 is energized. simultaneously with the interruption of the supply of the motor 16, causing the stopping of the clutch 18 and the speed reducer.

Landscapes

  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Claims (7)

  1. Fernantrieb für ein elektrisches Schaltgerät, insbesondere einen Leistungsschalter, welcher Antrieb
    eine Getriebemotoranordnung (14) mit Elektromotor (16) und zugeordnetem Reduktionsgetriebe zur Verstellung von Übertragungsmitteln zwischen einer Einschaltstellung und einer Ausschaltstellung der Kontakte des Schaltgeräts
    sowie eine, zwischen dem Motor (16) und dem Reduktionsgetriebe angeordnete Fliehkraftkupplung (18) umfaßt,
       dadurch gekennzeichnet, daß die Kupplung (18)
    einen den Antriebsteil bildenden Rotor (26) mit Fliehkörpern (28, 30) und einem überstehenden, rohrförmigen Einsatz (36) umfaßt, in den die Welle (24) des Motors (16) eingesetzt ist,
    eine den Abtriebsteil bildende Glocke (32), die durch einen Ringspalt vom Rotor (26) getrennt ist und unter Fliehkrafteinwirkung mit den Fliehkörpern (28, 30) zusammenwirkende Mitnahmemittel umfaßt,
    sowie eine, fest mit der Glocke (32) verbundene Axialauskragung (52) mit einer Blindbohrung (54) zur freitragenden Aufnahme des Einsatzes (36) des Rotors (26) umfaßt, wobei die äußere Umfangsfläche der genannten Auskragung (52) ein Zahnrad (56) zum Antrieb des Reduktionsgetriebes trägt.
  2. Fernantrieb nach Anspruch 1, dadurch gekennzeichnet, daß die Mitnahmemittel der Glocke (32) einen an der Innenseite der Seitenwand befestigten Reibbelag (40) umfassen.
  3. Fernantrieb nach Anspruch 1, dadurch gekennzeichnet, daß die äußere Umfangsfläche der Glocke (32) als Rastverzahnung (58) ausgebildet ist, die dazu dient, nach dem Stillstand des Motors (16) mit Sperrmitteln zusammenzuwirken.
  4. Fernantrieb nach Anspruch 1, dadurch gekennzeichnet, daß der Rotor (26) Anschlagmittel (38) aufweist, die dazu dienen, mit einer Klinke (46) zusammenzuwirken, um den Anlaufdrehsinn des Motors (16) zu bestimmen.
  5. Fernantrieb nach Anspruch 4, dadurch gekennzeichnet, daß die Anschlagmittel (38) mindestens eine Nase (42, 44) umfassen, die in Axialrichtung gesehen auf der dem Einsatz (36) abgewandten Seite angeordnet ist, und daß die Klinke (46) an eine Achse (48) angelenkt ist und durch eine Feder (50) gegen die genannten Nase gedrückt wird.
  6. Fernantrieb nach Anspruch 1, dadurch gekennzeichnet, daß der Metalleinsatz (36) des Kunststoffrotors (26) durch einen zylindrischen Zapfen (66) mit einem halbkugelförmigen Ende (68) verlängert ist, das sich bei in die Glocke (32) eingesetztem Rotor (26) an einem flachen Grund der Bohrung (54) abstützt.
  7. Fernantrieb nach Anspruch 6, dadurch gekennzeichnet, daß ein Vorspannmittel (70), insbesondere ein weichelastisches Federblatt die Auskragung (52) gegen den Zapfen (66) drückt, um bei der Drehung der Fliehkraftkupplung (18) jegliche mechanischen Schwingungen zu vermeiden.
EP19970410031 1996-03-18 1997-03-12 Fernsteuerungsvorrichtung mit Getriebemotor mit einer Fliehkraftkupplung Expired - Lifetime EP0797230B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9603553A FR2746210B1 (fr) 1996-03-18 1996-03-18 Dispositif de telecommande a motoreducteur equipe d'un embrayage centrifuge
FR9603553 1996-03-18

Publications (2)

Publication Number Publication Date
EP0797230A1 EP0797230A1 (de) 1997-09-24
EP0797230B1 true EP0797230B1 (de) 2002-06-05

Family

ID=9490416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970410031 Expired - Lifetime EP0797230B1 (de) 1996-03-18 1997-03-12 Fernsteuerungsvorrichtung mit Getriebemotor mit einer Fliehkraftkupplung

Country Status (4)

Country Link
EP (1) EP0797230B1 (de)
DE (1) DE69712960T2 (de)
ES (1) ES2176648T3 (de)
FR (1) FR2746210B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1129462A1 (de) * 1998-11-10 2001-09-05 Tyco Electronics Logistics AG Antrieb für die fernbetätigung eines leistungsschalters
DE102010011997B4 (de) * 2010-03-18 2023-02-02 Siemens Aktiengesellschaft Antriebsvorrichtung für eine Spannwelle eines Federkraftantriebes eines elektrischen Schalters sowie elektrischer Schalter mit einer derartigen Antriebsvorrichtung
CN104505275B (zh) * 2014-12-23 2017-09-29 苏州未来电器股份有限公司 一种开关机构的控制装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH142573A (de) * 1929-11-23 1930-09-30 Sprecher & Schuh Ag Motorantrieb für Schaltapparate.
US3712438A (en) * 1971-03-15 1973-01-23 Emerson Electric Co Centrifugal friction clutch
JPS5430316Y2 (de) * 1976-01-13 1979-09-25
FR2699733B1 (fr) * 1992-12-21 1995-03-17 Merlin Gerin Disjoncteur modulaire associé à un bloc de télécommande.

Also Published As

Publication number Publication date
FR2746210A1 (fr) 1997-09-19
DE69712960T2 (de) 2003-02-06
ES2176648T3 (es) 2002-12-01
DE69712960D1 (de) 2002-07-11
EP0797230A1 (de) 1997-09-24
FR2746210B1 (fr) 1998-06-12

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