EP0089882B1 - Abnehmbare Einrichtung zur Verriegelung eines Schaltschuetzes in seiner aktiven Stellung - Google Patents

Abnehmbare Einrichtung zur Verriegelung eines Schaltschuetzes in seiner aktiven Stellung Download PDF

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Publication number
EP0089882B1
EP0089882B1 EP83400526A EP83400526A EP0089882B1 EP 0089882 B1 EP0089882 B1 EP 0089882B1 EP 83400526 A EP83400526 A EP 83400526A EP 83400526 A EP83400526 A EP 83400526A EP 0089882 B1 EP0089882 B1 EP 0089882B1
Authority
EP
European Patent Office
Prior art keywords
fact
locking
coupling piece
levers
lever
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
EP83400526A
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English (en)
French (fr)
Other versions
EP0089882A1 (de
Inventor
Alain Dumont
René Fouret
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
Publication of EP0089882A1 publication Critical patent/EP0089882A1/de
Application granted granted Critical
Publication of EP0089882B1 publication Critical patent/EP0089882B1/de
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/10—Contacts retained open or closed by a latch which is controlled by an electromagnet

Definitions

  • These locking devices are used when it is desired to maintain, for example, a contactor in its working state without providing permanent excitation to the electromagnet which performs the closing of the contacts. They therefore make it possible to actuate said contactors using current pulses and therefore to save energy during the intervals separating two pulses.
  • these locking devices are very useful when it is desired to keep the memory of the state in which the switching apparatuses of an installation were at the time when an accidental interruption of the supply of their electromagnets appears. and, as such, they allow a new start of the installation under conditions identical to those it presented at the time of the failure; the implementation of these devices is particularly advantageous when it is necessary to ensure, after a breakdown, the immediate commissioning of the safety circuits that such an installation may include.
  • Any removable locking device which is mounted on a contactor must be able to maintain the switching elements of the latter in a working position for which the contact crushing is carried out in a suitable manner, i.e. that the pressure exerted between fixed and mobile contacts must be between close and well determined values.
  • This condition which is already difficult to comply with when these devices are mounted on contactors of the same type, due to the dispersion of the manufacturing dimensions, becomes practically impossible to observe if the same locking device must be able to adapt to devices of different types.
  • the invention therefore proposes to provide a locking device corresponding to the general constitution mentioned above, which may be associated with switching devices having either relatively wide manufacturing tolerances or substantially working strokes different and on which it will not be necessary to carry out a systematic adaptation or adjustment during manufacture.
  • said locking device is characterized in that a second locking lever and a second bearing surface are placed in the same housing, so as to effect a second locking of the coupling part when the latter ci reaches a second active position close to the first, the same unlocking electromagnet being used to replace said first and second levers in the released position.
  • the locking device 1 comprises a housing 2 formed by assembling two half-housings 3 and 4 along a joint plane passing through XX '.
  • Each half-housing has, on its internal surface, a guide means such as a groove 5, respectively 6, parallel to the plane of the figure, these two grooves being parallel and, externally, a hook 7, respectively 8, which forms , when the housing is assembled, a fixing claw for making the housing integral with a switching device, such as a contactor 9.
  • Each half-housing further comprises a bore portion 10, respectively 11, these two portions coming in alignment when the half-housings are assembled.
  • a coupling piece 12 (see also Figure 2) which takes the form of a U having two opposite parallel branches 13, 14 and a common crosspiece 15, is arranged in the housing so as to slide in the plane of the figure 1 thanks to the guide provided to it when the branches are placed in the grooves 5, respectively 6.
  • the crosspiece 15 has an association member 16, for example having the shape of a T, which passes through a lower opening 17 of the housing to become integral with a movable member 18 of the contactor 9, causing the movement of the contacts of the latter , or carrying these contacts, and being integral with the armature of this contactor (see also Figure 8).
  • association member 16 for example having the shape of a T, which passes through a lower opening 17 of the housing to become integral with a movable member 18 of the contactor 9, causing the movement of the contacts of the latter , or carrying these contacts, and being integral with the armature of this contactor (see also Figure 8).
  • this cross member On one side of this cross member, opposite the association member, are arranged two bearing surfaces 19 and 20 (as can be seen better in Figure 2). These two surfaces, which are slightly inclined at an angle 8 relative to a plane perpendicular to that of Figure 2 (see also there Figure 5), are placed at two levels n l , respectively n 2 different, these levels being defined with respect to the direction F or G of the rectilinear movement of the coupling part.
  • levers each carry, at their respective free ends 25, 26, a caster 27, respectively 28.
  • These levers are, moreover, subjected to elastic forces supplied by springs such as 23 ', respectively 24', which tend to their communicate rotational movements in the same direction a towards the coupling part to bring, as explained above, each roller in contact with a particular bearing surface (see FIG. 3 and 1).
  • the second lever 23 also takes a position engaged in the plane PP 'and the second roller 27 comes in turn s' press on the bearing surface 19, opposite, to keep it in the second active position A 2 which it has just reached in turn.
  • the staging of the bearing surfaces will be chosen as a function of the additional stroke separating C2 from Ci and in such a way that, for any stroke greater than or equal to C 1 , the first roller 28 engages above the first surface 20 and that, for any stroke greater than or equal to C 2 , the second caster 27 engages above the second surface 19, the first caster not being, in the latter case, used to lock the first surface.
  • the first caster will first be engaged but will not lock, it will then be operated by the second caster whose locking will replace the action of the first beyond a 5.5 mm stroke.
  • the angle B and the position of the pivot axis of the levers 21 will be chosen so that each lever and therefore each roller can pass from one side to the other of the plane PP 'passing substantially through this axis perpendicularly to the corresponding stop surface.
  • the orientation that a lever 23, 24 must take in a plane PP ′ to effectively block the coupling piece 12 can be obtained, either by cooperation of a roller such as 28 (see FIG. 4) with a surface of support, such as 29, carried by this part 12 is also by cooperation of a surface 30, carried by the lever 24 in the vicinity of the pivot 21, with a support surface 31 of the housing.
  • An electromagnet 32 intended to effect the remote locking of the levers comprises a carcass 33, on which is disposed a coil 34 connected to terminals such as 35 and inside which is a bore 36 possibly serving to guide a plunger core 37 movable along an axis YY 'perpendicular to the plane of movement of the coupling part.
  • a U-shaped yoke, not shown, is provided to close the flow of the electromagnet.
  • This carcass and this coil pass at the level of the coupling piece between the two levers, which saves space; the carcass has, in addition, an end 38 which is supported on a wall 39 of the housing so that its position, relative to the levers, is well defined in the direction YY '.
  • the carcass has cheeks, such as 40, which also cooperate with the half-housings so that its position is well defined in directions perpendicular to YY ′.
  • the plunger core 37 carries, outside the coil, a pusher 41 having two fingers 42, 43, parallel to YY 'which are placed opposite the two respective levers 23, 24 and an extension 44 which passes through a groove 45 of the housing 2 and / or the carcass; this extension has a manual actuation button 46 which makes it possible to carry out an operation of the plunger independently of the reel.
  • a weak return spring 47 gives this plunger core and this plunger a well-defined rest position by pressing the latter on a wall 48 of the housing, opposite to the wall 39; possibly one can dispense with using such a spring if the position of the housing allows gravity to exercise a similar role.
  • the abutment surfaces 19, 20 of the coupling part have been oriented in FIG. 5, at a certain angle p to facilitate the engagement of the rollers and to make the energy required for unlocking very low; such a measurement is not essential for the apparatus to function since surfaces 19 ′, 20 ′ (see FIG. 6), could also be placed perpendicular to their direction of movement F, G provided that the line A passing substantially by the pivot 21 and by the contact point 49 of the caster 27, 28, make, with this surface 19 '20', an angle (2) slightly greater than 90 °; in the latter case, the unlocking electromagnet 32 must supply energy greater than that which is necessary in the preceding case.
  • FIG. 7 shows how grooves 50, 51, placed in lateral cheeks 52, 53 of the coil casing 33, make it possible to guide ribs 54, 55 of the pusher 41 when the plunger core 37 is not guided in the bore 36.
  • the two levers 23, 24 will preferably be identical.
  • the internal circuit 56 comprises, in series (see FIG. 8), a switch 57 whose movable contact 58 is placed on the coupling part 12 (in particular in a window 60 of branch 14) so that the switch is closed when the contactor 9 moves, in direction F, this part 12 and open otherwise; a second terminal 35 terminates the internal supply circuit 56.
  • the operation of the device 1 begins when the contactor 9 is energized and when the coupling part is driven by the part 18 and against the action of a return spring 59 in the direction F by performing a stroke Ci and C 2 .
  • the locking lever 24 or, respectively, 23 holds the locking piece 24 or, respectively, 23 holds the piece coupling in an active position A such that pressure on the contactor contacts is ensured; if the electromagnet of the contactor is then de-energized, its armature retains practically the same position.
  • a current pulse is sent to the terminals 35, 35 'of the device 1 and excites the unlocking electromagnet 32 due to the closed state of the switch. 57.
  • the plunger movement causes percussion of the levers 23, 24 by the pusher 41, clockwise in FIG. 4 and, the bearing surfaces 19, 20 escaping from the rollers 27, 28, the return spring 59 of the armature or part 18 of the contactor 9 moves the coupling part 12 in direction G to give it an inactive position I in which the switch 57 is open.
  • FIGS. 1 to 7 The preferred embodiment of the invention which has been illustrated in FIGS. 1 to 7 can be applied to a mechanical arrangement, visible in FIG. 9, which does not have the same advantages.
  • levers 23", 24 “ are pivoted at 21" on a coupling piece 12 ", while the bearing surfaces 19", 20 “are carried by the upper region d 'a 2 "enclosure.
  • two levers 23 "', 24"' which are pivoted on the same axis 21 "'in a housing 2"', have lengths m j and M2 different, while the bearing surfaces 19 “', 20"', which are placed on a coupling piece 12 "', are in the same plane VV'; here again, the operation is the same as in the two previous cases, namely that the two levers engage, one after the other, against the bearing surfaces to effect locking when the coupling piece performs strokes of different amplitudes.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Fixing For Electrophotography (AREA)

Claims (10)

1. Abnehmbare Einrichtung, um das bewegliche Teil (18) eines Schaltschützes (9) in seiner aktiven Stellung zu verriegeln, wenn dieses Teil in seine Ruhestellung gebracht wird, durch eine Rückstellfeder (59) und die Leistungskontakte des Schaltschützes (9) in seiner aktiven Stellung schliesst, wobei diese Einrichtung in einem Gehäuse (1) enthält :
- ein Kupplungsteil (12), welches mit den Bewegungen des beweglichen Teiles (18) assoziiert ist und sich zwischen einer nicht aktiven Stellung (I) - wenn besagtes Teil (18) in seiner Ruhestellung ist - und einer ersten aktiven Stellung (A,) - wenn besagtes Teil (18) aktiv ist, bewegt ;
- einen ersten Verriegelungshebel (24), welcher um einen Angelpunkt (21) schwingt, zwischen einer unverbundenen Stellung, wenn das Kupplungsteil (12) sich in seiner nicht aktiven Stellung befindet, und einer verbundenen Stellung, in die er durch eine Feder (24') gebracht wird, wenn das Kupplungsteil (12) sich in seiner aktiven Stellung befindet ;
- eine Anschlagfläche (20), gegen die eine Rolle (28) drückt, welche sich am freien Ende (26) besagten ersten Hebels (24) befindet, wenn dieser die verbundene Stellung einnimmt, und zwar so, dass besagter erster Hebel (24) sich unter Längsdruck befindet ; und
- einen Entriegelungselektromagneten (32), von dem ein beweglicher Drücker (41), wenn er erregt wird, mit besagtem ersten verriegelungshebel (24) zusammenarbeitet, um den Anschlag zu unterbrechen und ihm seine unverbundene Stellung zu verleihen, dadurch gekennzeichnet, dass ein zweiter Verriegelungshebel (23) und eine zweite Anschlagfläche (19) sich im gleichen Gehäuse (2) befinden, um eine zweite Verriegelung des Kupplungsteiles (12) zu bewerkstelligen, wenn dieses eine zweite aktive Stellung (A2) in der Nähe der ersten (A,) erreicht, wobei der gleiche Entriegelungselektromagnet (32) auch dazu dient, besagte erste und zweite Hebel (23, 24) wieder in die unverbundene Stellung (D) zu bringen.
2. Verriegelungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass besagter zweiter Verriegelungshebel (23) parallel zum ersten Verriegelungshebel (24) angeordnet ist und, an seinem freien Ende, eine zweite Rolle (27) hat, welche mit einer zweiten Anschlagfläche (19) zusammenarbeitet, welche im wesentlichen parallel zur ersten Anschlafläche (20) angeordnet ist, wenn das Kupplungsteil (12) eine zweite aktive Stellung (A2) einnimmt, die von der nicht aktiven Stellung (I) weiter entfernt ist, als die erste aktive Stellung (A,).
3. Verriegelungseinrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die beiden Hebel (23, 24) um, mit dem Gehäuse fest verbundene, Angelpunkte schwenken, während die Anschlagflächen (19, 20) auf dem Kupplungsteil angeordnet sind.
4. Verriegelungsteil nach Anspruch 2, dadurch gekennzeichnet, dass die beiden Hebel auf das Kupplungsteil geschwenkt werden, während die Anschlagflächen vom Gehäuse getragen werden.
5. Verriegelungseinrichtung nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, dass die beiden Hebel (23, 24) die gleiche Länge haben und um den gleichen Angelpunkt 21) schwenken, wobei diese Anschlagflächen (19, 20) sich auf zwei verschiedenen Niveaus (n" n2) befinden.
6. Verriegelungseinrichtung nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, dass die beiden Hebel verschiedene aktive Längen (m1, m2) haben und die Anschlagflächen sich auf der gleichen Ebene VV' befinden.
7. Verriegelungseinrichtung nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass die beiden Hebel (23, 24) sich zu beiden Seiten der Spule (34) des Entriegelungselektromagneten (32) befinden.
8. Verriegelungseinrichtung nach einem der Ansprüche 2, 3,5,6 oder 7, dadurch gekennzeichnet, dass das Kupplungsteil (12) die Form eines U hat, dessen parallele Schenkel (13, 14) zu seiner Führung dienen und dessen einer Quersteg (15) die Anschlagflächen (19, 20) trägt. 9 Verriegelungseinrichtung nach Anspruch 8, dadurch gekennzeichnet, dass ein Schenkel (14) des Kupplungsteiles einen beweglichen Kontakt (58) trägt, der zu einem Schalter (57) gehört, welcher in Reihe geschaltet ist mit einer Spule (34) Entriegelungselektromagneten.
EP83400526A 1982-03-19 1983-03-15 Abnehmbare Einrichtung zur Verriegelung eines Schaltschuetzes in seiner aktiven Stellung Expired EP0089882B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8204681 1982-03-19
FR8204681A FR2523763A1 (fr) 1982-03-19 1982-03-19 Dispositif amovible de verrouillage d'un contacteur dans sa position de travail

Publications (2)

Publication Number Publication Date
EP0089882A1 EP0089882A1 (de) 1983-09-28
EP0089882B1 true EP0089882B1 (de) 1985-08-28

Family

ID=9272172

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83400526A Expired EP0089882B1 (de) 1982-03-19 1983-03-15 Abnehmbare Einrichtung zur Verriegelung eines Schaltschuetzes in seiner aktiven Stellung

Country Status (8)

Country Link
US (1) US4490702A (de)
EP (1) EP0089882B1 (de)
JP (1) JPS58184222A (de)
BR (1) BR8301314A (de)
CA (1) CA1203825A (de)
DE (1) DE3360644D1 (de)
ES (1) ES520780A0 (de)
FR (1) FR2523763A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3430090A1 (de) * 1984-08-16 1986-03-06 Euchner & Co, 7022 Leinfelden-Echterdingen Sicherheitsschalter
DE3524524C2 (de) * 1985-07-05 1993-12-16 Siemens Ag Verklinkungseinrichtung zur lösbaren Verklinkung von Schaltgeräten in ihrer Einschaltstellung
DE9209555U1 (de) * 1992-07-16 1993-11-25 Siemens AG, 80333 München Verklinkungsblock für elektromagnetische Schaltgeräte
ES2109860B1 (es) * 1994-12-15 1998-08-01 Power Controls Iberica Sl Dispositivo mecanico selector y de retencion de un contactor para mantener su posicion de cierre.
CN1253912C (zh) * 2003-05-29 2006-04-26 刘平 电力开关器
US10919717B2 (en) * 2018-12-12 2021-02-16 James N. Sinclair Lifting device for blocks with non-parallel walls

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR733936A (fr) * 1932-03-21 1932-10-13 Interrupteur à deux contacteurs dont un à disjonction automatique
FR755564A (fr) * 1932-05-13 1933-11-27 Siemens Ag Relais à fréquence à lames ayant au moins deux lames accordées différemment, qui fonctionnent séparément
GB675844A (en) * 1951-01-12 1952-07-16 British Tabulating Mach Co Ltd Improvements in or relating to electromagnetic relays
BE534765A (de) * 1954-01-28 Merlin Gerin
GB988678A (en) * 1961-05-02 1965-04-07 Haegglund & Soener Ab Multiple-pole electromagnetic contactor
US3201545A (en) * 1962-02-28 1965-08-17 Westinghouse Electric Corp Electric control device
GB1422934A (en) * 1971-11-19 1976-01-28 Square D Co Latching attachment for a relay
US3882435A (en) * 1974-06-28 1975-05-06 Square D Co Latch attachment for an electromagnetically operated switching device
DE2625292C3 (de) * 1976-06-04 1978-11-30 Siemens Ag, 1000 Berlin Und 8000 Muenchen Fernsteuerbares, elektromagnetisches Schaltgerät
US4185259A (en) * 1978-01-19 1980-01-22 Westinghouse Electric Corp. Magnetic contactor with an adjustable latch release
US4307361A (en) * 1980-05-01 1981-12-22 Westinghouse Electric Corp. Electric control apparatus with an electromechanical latch device

Also Published As

Publication number Publication date
ES8402115A1 (es) 1984-01-01
FR2523763B1 (de) 1984-06-08
ES520780A0 (es) 1984-01-01
JPH0454331B2 (de) 1992-08-31
US4490702A (en) 1984-12-25
EP0089882A1 (de) 1983-09-28
DE3360644D1 (en) 1985-10-03
FR2523763A1 (fr) 1983-09-23
JPS58184222A (ja) 1983-10-27
CA1203825A (fr) 1986-04-29
BR8301314A (pt) 1983-11-29

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