EP0114541B1 - Dispositif de déclenchement pour un appareil interrupteur à coupure automatique ou commandée - Google Patents

Dispositif de déclenchement pour un appareil interrupteur à coupure automatique ou commandée Download PDF

Info

Publication number
EP0114541B1
EP0114541B1 EP83402352A EP83402352A EP0114541B1 EP 0114541 B1 EP0114541 B1 EP 0114541B1 EP 83402352 A EP83402352 A EP 83402352A EP 83402352 A EP83402352 A EP 83402352A EP 0114541 B1 EP0114541 B1 EP 0114541B1
Authority
EP
European Patent Office
Prior art keywords
lever
transmission member
resetting
trip
hand
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
EP83402352A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0114541A2 (fr
EP0114541A3 (en
Inventor
Patrick Ballot
André Faffart
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.)
Telemecanique SA
Original Assignee
La Telemecanique Electrique 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 La Telemecanique Electrique SA filed Critical La Telemecanique Electrique SA
Priority to AT83402352T priority Critical patent/ATE25445T1/de
Publication of EP0114541A2 publication Critical patent/EP0114541A2/fr
Publication of EP0114541A3 publication Critical patent/EP0114541A3/fr
Application granted granted Critical
Publication of EP0114541B1 publication Critical patent/EP0114541B1/fr
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
    • H01H71/58—Manual reset mechanisms which may be also used for manual release actuated by push-button, pull-knob, or slide
    • 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

Definitions

  • Such a mechanism is in particular applicable to a contactor device comprising a local control member and having automatic opening means which respond to the appearance in the circuit of the load of instantaneous current overloads, such as those due to frank short circuits. or impedant, or prolonged such as those due to overloads.
  • US-A-2 479 331 describes a switch comprising a pivoting locking lever, an attachment member for the deflected lever in self-releasable contact with the lever, a trigger member provided with a lock holding the member hooking in contact with the lever to maintain the movable contact in the closed state and an off-center spring mechanism for deflecting the movable contact in the open position and having an actuating element, movable in one direction to engage the lever and the latching and, in the opposite direction, to engage the lever and the latching member and bring the movable contact to the closed position.
  • the invention proposes first of all to provide an apparatus performing the same functions as that of the prior art in which the triggering functions and the resetting functions will be performed using separate parts allowing effective decoupling between the operations of mechanical resetting specific to the second mechanism and to the resetting of the resettable device or devices, and between the operations which condition the resetting and the triggering of the first trigger mechanism; in a particular embodiment, the invention then aims to provide a device where the friction will be reduced so as to improve the sensitivity and speed of the internal operation while reducing the sensitivity to disturbances of external origin; finally within the framework of a particular association of the apparatus, with a remote reset device, the invention is interested in the measures likely to make carry out by a motor turning in one direction, operations which are carried out in two sense during manual reset.
  • FIG. 1 Elements of a housing containing the mechanism are represented by 1 in FIG. 1.
  • a manual control member 2 makes it possible to operate a mobile transmission member 3 which is associated with a tension spring 4 tending to move it in the direction L.
  • This moving part has a first edge 5 placed parallel to L, a first bearing surface or inclined ramp 6 placed at a first level 7, a second edge or abutment surface 6 which is parallel to L, and a second inclined ramp or second bearing surface 9 placed at a level 40.
  • This moving part which can take one of four positions F, D, 0, R has been shown in solid lines in position F and only the bearing surfaces 6 and 9 have been shown in dotted lines in other positions D and 0 respectively D, 0 and R.
  • a locking lever 10 oscillating around a first fixed pivot 11 secured to the housing is maintained in a rest position, where it rests on a stop 12, under the action of a torque CI of direction P provided by a spring 13.
  • This lever carries a movable pivot 14 around which oscillates an eclipsable lock 15 whose rest position is determined by its support, on a stop 16 of the lever, which is provided to it by the spring 17.
  • This lock has an end 18 which cooperates with the surface 6 to maintain the moving part 3 in the position F where the spring 4 is armed.
  • one end of the locking lever 10 adjacent to the lock carries an extension or spout 19.
  • a tilting trigger lever 20 oscillating around a fixed pivot 21 comprises a hammer 22 placed opposite the extension 19, a stud 23, a stud 24 and a stud 25.
  • a tooth 26 is disposed at one end of the part 20 which is also stressed by a torque C4 supplied by a spring 27 and tending to move it in the direction M.
  • This trigger lever 20 finds an armed rest position for which the spring 27 is tensioned when the tooth 26 is supported on a spout 28 belonging to a trigger pawl 29 which can oscillate around a fixed pivot 30 of the housing and which carries two arms 31 and 32; this trigger pawl has a rest position which is communicated to it by a spring 34 and which is defined by a stop 33 of the housing.
  • a reset lever 35 oscillating freely around a pivot 21 ′ (which may be of the same axis as that of the pivot 21 or a pivot with a neighboring parallel axis) has a first arm 36, a second arm 37 and a third arm 38 an end surface 39 of which is placed at level 40, shown in dotted lines, where the bearing surface 9 moves.
  • One end 41 of the arm 36 is placed with a certain clearance opposite a flange 42 belonging to a first slide 43, which moves in the housing for example in a straight line, in the direction E or G and which carries a finger 44 placed opposite the arm 31 of the pawl 29.
  • One end 45 of the arm 37 is also placed with clearance in the vicinity of an end surface 46 belonging to a second slide 47 which moves in the housing for example in a rectilinear fashion in the H or J direction and which carries a finger 48 placed opposite the arm 32 of the pawl 29.
  • a surface 49 of the reset lever 35 remote from the pivot 21 ' is placed facing the stud 25 so that an angular cooperation can be established between the reset and trigger levers in one of the directions M or N.
  • the parts and members 13, 10, 15 3, 4 belong to a first mechanism with sudden release, and the parts 20, 27, 29, 34, 35 belong to a second mechanism with sudden release.
  • a control switch 50 is placed in series with a coil 51 of a contactor electromagnet placed in the housing and shown diagrammatically at 54, and comprises for example a fixed contact 52 carried by the housing and a movable contact 53, which associated with it; in the example shown the movable contact is carried by the locking lever 10 and the switch 50 is closed when, the moving part 3 being in position F, this locking lever is in the rest position against the stop 12; the slides 43 or 47 will be moved abruptly in direction E or H, by resettable overload detector devices or bodies placed in the housing and represented schematically by 55, 55 ', 56, 56' and 57, 57 'to respond at the appearance of overcurrents te different levels in load circuits 58 of the contactor 54; the marks 55 ', 56', 57 'can respectively represent strikers and magnetic
  • the moving part 3 which is thus released in its turn then moves in the direction L until the bearing surface 6 comes into contact with the stud 23.
  • the moving part 3 then occupies a stable position D called the trigger where the switch 50 is open; this opening is due to the fact that the end 18 of the latch 15.5 ′ is applied against the edge 5 when the rocking lever 10 has suddenly taken up a working position which separates it from the stop 12.
  • the device can be put voluntarily in the permanent open position "0" thanks to an external action exerted on the member 2 in the "L” direction, which first causes a slight tilting of the trigger lever 20 in the direction "N” thanks to the action of the bearing surface 6 against the stud 23; this tilting, which allows the stud 23 to escape the abutment surface 6, and to come to bear on the surface 5 causes the bearing surface 9 to cooperate with the surface 39 of the arm 38 of the reset lever 35 for provide a stable, open “O” position which results from the balance of opposing forces exerted by the springs 27 and 4 and transmitted by the parts 27, 20, 25, 49, 35, 38, 39 on the one hand and by the parts 4,3,9 on the other hand.
  • Resetting the device's triggering devices after an automatic triggering must have the effect of, on the one hand, returning the transmission member to position F and, on the other hand, resetting the devices 55, 56, 57, 43 and 47 in a state corresponding to the absence of fault.
  • This rearming which will provide movements of direction "G” respectively "J", to the slides 43, 47, and will be transmitted by means shown diagrammatically in 59, 60, 61, will result from the cooperation between the bearing surface 9 (or an edge 62 separating this surface from the bearing surface 8) against the end 39 of the cocking lever 35.
  • a trigger lever 20 ' the surface 24' of which here cooperates with a stop 8 'of the housing 1 to facilitate reading of the drawing, could also find a working position by pressing against a stop surface 8 "similar to the surface of stop S in FIG. 1.
  • the pivoting locking lever 10 (see Figure 2) carries a contact lever 63 which is applied against a stop 64 of this lever by a spring 65 to have a rest position.
  • This contact lever has an end 66 which can lift a movable contact 53 'to separate it from a fixed contact 52' belonging to a control switch 50 'having the same function as the previous switch 50.
  • This switch results here either from the tilting of the lever 10 in the Q direction after release by the trigger lever, or even when, the lever 10 being tilted or not, the end 66 is pushed back in the "K" direction thanks to a T action defined later.
  • the positions D, 0 implement an antagonistic cooperation between the surfaces 6 ′, 23 ′ and respectively 9 ′, 39 ′ to give two stable positions to the transmission member and to the local control member, see Figures 3a and 3b where the opposite arrows indicate these cooperations.
  • the unstable position "R” is here again obtained by a return effort towards the position "0" which is communicated to the transmission member 3 'by the spring 27 whose action is transmitted by the trigger lever 20', an arm 25 'of the latter, the surface 49, the lever 35' and the end 39 ', the latter acting on the surface 9', see FIG. 3c, where the opposite arrows indicate antagonistic actions.
  • the movements of the transmission member have been assumed to be rectilinear; the devices are able to operate in the same way when these parts 3, 3 'are rotating parts, for example integral with a rotary button 2 movable around an axis YY' perpendicular to tangential displacements K and L.
  • the rotating part 3 " which takes up the same functions as the previous part 3 ', is movable around a pivot 68 whose axis is parallel to the axes of the parallel pivots 11, 67, 14, 21 and 30.
  • the contact lever 63 further comprises a first end 66 'whose function will be specified later, a second insulating end 69 which cooperates with the movable contact 53' as the end 66 did previously.
  • the reset lever 35 ′ shown in dotted lines comprises, instead of the arms 41, 45, pins 41 ′, 45 ′ having, for resetting, the same functions as the arms 41 and 45 and this by cooperation with surfaces 42 and 46 respectively.
  • the surfaces 6 ′ and 9 ′ visible in FIG. 6 are aligned but offset axially along the rotating transmission part 3 "which also has a cylindrical surface 8" which serves as a stop for the surface 24.
  • a clearance 87 from the part 3 "(see FIG. 4) allows the arm 38 not to come into contact with this part 3" in a place other than 9 '.
  • the trigger lever 20 has an arm 25 'which cooperates with a stud 49' of the reset lever, the function of which is the same as that of the preceding surface 49.
  • the properties and operating modes of the variants are substantially identical to those of the device according to figure 1.
  • Triggering mechanisms such as those shown in Figures 2 to 6 are particularly suitable for remote control by receiving external control actions; these are provided for example by an electric actuator, using a small synchronous motor, intended to operate the closing of the device; in order to remotely reset and put into service.
  • an internal remote control slide 70 having three portions 71, 72, 73 suitable for exerting thrusts in the same direction (indicated by arrows S, T, V) for example on a surface portion 74 of the transmission member 3 'which would preferably be placed at a third level 75 in the vicinity of levels 7 and 40, on the end 66 'and on the arm 36.
  • This slide 70 which is associated with a return spring 77 and with a stop 76 of the housing to fix its rest position W is shown in the position Z which it occupies at the time when the hooking in position has just been carried out.
  • This pusher 83 enters the housing 1 to through an opening 88 thereof to cooperate with the thrust surface 87 of the slider 70 after having passed through an opening 89 of the housing 1.
  • the switch 82 which is only open when the pusher 83 is in the rest position W, and closes as soon as it moves in the direction K, ensures the continuity of the power supply to the motor when a short setting voltage disappears. en route applied directly to the engine using a switch 91 between terminal 79 and a third terminal 84; this voltage being applied when the remote reset is to be carried out.
  • the pusher 83 which is associated with a spring 86 and which performs once for each order a single forward movement of direction "K” and return of direction "L” extending between successive positions W, B, X, B, W therefore communicates to slide 70 displacements of amplitude WX.
  • the rest position W of the slide which corresponds to that of pusher 70 is such that, even for a reset position "R" given to the transmission member 3 'by a manual external action exerted on the local control member 2 , the bearing surface 74 cannot come into contact with the portion 71; likewise neither the arm 36 nor the arm 66 'can come against the portions 73 respectively 72 for the position "D" of the transmission member.
  • the maximum position X reached by the slide and given to the transmission member 3 ' is such that the bearing surface 6' is placed slightly to the left of the latch 18 to allow it to be put in place under the effect of the spring 13 .
  • the portion 72 meets the end 66 'of the contact lever and keeps the switch 50' open; if the reset attempt, communicated during the race going from W to X to the trigger lever 35 ', is effectively followed by a hooking of the trigger lever by the pawl 29 during the return race going from W to B passing through Z, the lever 10 can take the position shown in FIG. 5 and the switch 50 ′ can only close when the slide returns to the right of position B.
  • a surface 74 ′ which has the same function as the surface 74 of FIG. 5, can be aligned with the surfaces 6 'and 9' while being axially offset so as not to interfere with surfaces 24 and 39, see Figure 6.
  • the engagement of the pawl behind the tooth should only be possible if the circumstances or faults which caused a triggering in position D have disappeared.
  • the only circumstance which may prevent the engagement of the pawl is that which results from the deflection of a bimetallic strip 57 'still heated to the following prolonged overload; in this situation the action which is caused by an overload detector 57 and which is continuously transmitted during the cooling time of the bimetallic strip by the channel 61, prevents the slide 47 from retaining a position directed towards J and therefore prevents the latch from take its rest position; as a result, the trigger lever 20 respectively 20 ', 20 ", cannot take its armed position when the transmission member leaves the position R to move towards the successive positions 0 and F.
  • the lever locking device 10 cannot therefore take its rest position, so that the switch 50 remains open, even if the part 3 is brought into position F; consequently, reclosing of the charging circuit 58 cannot be effected as long that a bimetallic strip is still hot.

Landscapes

  • Keying Circuit Devices (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Lock And Its Accessories (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Peptides Or Proteins (AREA)
EP83402352A 1982-12-20 1983-12-06 Dispositif de déclenchement pour un appareil interrupteur à coupure automatique ou commandée Expired EP0114541B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83402352T ATE25445T1 (de) 1982-12-20 1983-12-06 Ausloeseeinrichtung fuer schaltgeraete mit automatischer oder bedienter oeffnung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8221316A FR2538159A1 (fr) 1982-12-20 1982-12-20 Dispositif de declenchement pour un appareil interrupteur a coupure automatique ou commandee
FR8221316 1982-12-20

Publications (3)

Publication Number Publication Date
EP0114541A2 EP0114541A2 (fr) 1984-08-01
EP0114541A3 EP0114541A3 (en) 1984-08-22
EP0114541B1 true EP0114541B1 (fr) 1987-02-04

Family

ID=9280271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83402352A Expired EP0114541B1 (fr) 1982-12-20 1983-12-06 Dispositif de déclenchement pour un appareil interrupteur à coupure automatique ou commandée

Country Status (11)

Country Link
EP (1) EP0114541B1 (enrdf_load_stackoverflow)
JP (1) JPS59119636A (enrdf_load_stackoverflow)
AT (1) ATE25445T1 (enrdf_load_stackoverflow)
AU (1) AU565447B2 (enrdf_load_stackoverflow)
BR (1) BR8306972A (enrdf_load_stackoverflow)
DE (2) DE114541T1 (enrdf_load_stackoverflow)
DK (1) DK163545C (enrdf_load_stackoverflow)
ES (1) ES528222A0 (enrdf_load_stackoverflow)
FI (1) FI72834C (enrdf_load_stackoverflow)
FR (1) FR2538159A1 (enrdf_load_stackoverflow)
HK (1) HK33388A (enrdf_load_stackoverflow)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1194960A (en) * 1916-08-15 Heating device
US2479331A (en) * 1946-07-24 1949-08-16 Gen Electric Electric switch
DE1194960B (de) * 1963-07-11 1965-06-16 Continental Elektro Ind Ag Leitungsschutzschalter
US3475711A (en) * 1967-05-17 1969-10-28 Gen Electric Electric circuit breaker operating mechanism and assembly thereof

Also Published As

Publication number Publication date
FI72834C (fi) 1987-07-10
DK163545C (da) 1992-08-24
AU2236083A (en) 1984-06-28
JPS59119636A (ja) 1984-07-10
FI72834B (fi) 1987-03-31
DK587583D0 (da) 1983-12-20
HK33388A (en) 1988-05-13
DE3369770D1 (en) 1987-03-12
ES8406789A1 (es) 1984-08-01
ATE25445T1 (de) 1987-02-15
DK163545B (da) 1992-03-09
BR8306972A (pt) 1984-07-24
DK587583A (da) 1984-06-21
DE114541T1 (de) 1984-10-25
AU565447B2 (en) 1987-09-17
FR2538159B1 (enrdf_load_stackoverflow) 1985-03-22
ES528222A0 (es) 1984-08-01
FI834640L (fi) 1984-06-21
FR2538159A1 (fr) 1984-06-22
FI834640A0 (fi) 1983-12-16
JPH0241852B2 (enrdf_load_stackoverflow) 1990-09-19
EP0114541A2 (fr) 1984-08-01
EP0114541A3 (en) 1984-08-22

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