EP0184652B1 - Interrupteur avec coupe-circuit - Google Patents

Interrupteur avec coupe-circuit Download PDF

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Publication number
EP0184652B1
EP0184652B1 EP85113604A EP85113604A EP0184652B1 EP 0184652 B1 EP0184652 B1 EP 0184652B1 EP 85113604 A EP85113604 A EP 85113604A EP 85113604 A EP85113604 A EP 85113604A EP 0184652 B1 EP0184652 B1 EP 0184652B1
Authority
EP
European Patent Office
Prior art keywords
switch
arm
fuse
knee joint
rocker
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
EP85113604A
Other languages
German (de)
English (en)
Other versions
EP0184652A2 (fr
EP0184652A3 (en
Inventor
Dieter Bossert
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.)
Lindner Fabrik Elektrischer Lampen und Apparate GmbH
Original Assignee
Lindner Fabrik Elektrischer Lampen und Apparate 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 Lindner Fabrik Elektrischer Lampen und Apparate GmbH filed Critical Lindner Fabrik Elektrischer Lampen und Apparate GmbH
Priority to AT85113604T priority Critical patent/ATE54512T1/de
Publication of EP0184652A2 publication Critical patent/EP0184652A2/fr
Publication of EP0184652A3 publication Critical patent/EP0184652A3/de
Application granted granted Critical
Publication of EP0184652B1 publication Critical patent/EP0184652B1/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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/10—Adaptation for built-in fuses
    • H01H9/104—Adaptation for built-in fuses with interlocking mechanism between switch and fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts

Definitions

  • the invention relates to a manually operated safety switch with the features listed in the preamble of claim 1.
  • Fuse switches of this type are used in a row, in particular for household fuses in the low-voltage range.
  • Such switches for example known from DE-A-29 34 149 or DE-A-26 18360, have a flap-shaped switching rocker on the top of their housing, with which a switch located in the housing is operated by hand. In the closed position of the switch, the shaft for the fuse link is covered by the switching arm. As a result, the switching rocker must first be brought into the open position for the fuse exchange, the supply-side contact for the fuse link being disconnected from the power supply. At the same time, if the fuse link is not or not correctly inserted, a locking mechanism is actuated which blocks the shift rocker in its open position. This ensures a high degree of safety for the user.
  • the invention is based on the experience that in practice the locking arm can be destroyed by a violent actuation. This either leads to the inoperability of the switch or, in the worst case, to a closing of the circuit breaker, whereby the supply-side foot contact of the fuse base is energized despite the missing or improperly used fuse link.
  • an electrical consumer is protected several times by fuse switches placed side by side in blocks, parts of the consumer can be energized via the parallel fuse switches with a properly inserted fuse link, although there is obviously an error in the circuit of the consumer.
  • the invention has for its object to provide a safety switch of the type mentioned in such a way that the locking of the safety switch is effectively protected against destruction by violent manual operation of the rocker arm.
  • the knee joint according to the invention in the actuating arm of the switching rocker ensures that it is not rigid in itself.
  • the knee joint bends from its extended position against the spring load to its kink position when the switch is pressed violently.
  • the latching action is thus not subjected to the full actuating force — which is multiplied by the lever ratios in conventional safety switches — but only to a fraction thereof depending on the spring load.
  • the switch can only be actuated via the kink-proof outer leg of the actuating arm. Since the inner leg is very short, it does not offer a contact surface for actuating the switch. In addition, due to the arrangement of the knee joint in the vicinity of the fulcrum with respect to the latching point, there are approximately equal lever ratios. This facilitates the selection of the torsion spring, since its spring constant only has to be selected so that the maximum transferable force is less than the breaking force for the locking point. There is no need for complex calculations based on different leverage ratios.
  • claims 6-8 protect the knee joint particularly well from outside access and improper manipulation. Since the torsion spring does not protrude beyond the outline of the shift rocker, its pointed ends cannot cause injuries to the operating personnel.
  • the fuse switch has particular advantages when several of its type, as described in claims 12-14, are combined to form a switch block.
  • the fuse switch designated overall by 1, is composed of two housing halves 2 made of insulating material, only one of which is shown in the figures.
  • the parting line between the housing halves 2 runs in the drawing plane of the figures.
  • the two housing halves 2 are riveted together in the final state.
  • the rivets extend through the through holes 3.
  • the safety switch 1 contains a shaft 4 for receiving the fuse link 5.
  • the terminals 6, 7 are used.
  • the terminal 7 is electrically conductively connected via the lead 10 to the threaded goggles 8, in which those firmly connected to the retaining cap 9 Screw cap 11 can be screwed in with its thread.
  • the fuse link 5 is provided at its head and foot ends with one end contact, namely the head contact cap 12 and the foot contact cap 13.
  • one end contact namely the head contact cap 12 and the foot contact cap 13.
  • the foot contact 13 of the fuse link 5 rests against a counter contact 14 which is movable within the housing in the plane of the drawing.
  • the counter contact 14 leads laterally from the area of the shaft 4 to a contact bridge 15 of a load switch which can be actuated by the switching rocker 16.
  • the load switch (FIG. 1) is switched on, the contact bridge 15 rests with its two contact ends 17, 18 on the mating contact ends 19, 20 of the mating contact 14 of the fuse link 5 or the contact tab 21 connected to the connecting terminal 6.
  • the contact bridge 15 is acted upon by the pressure of the closing springs 22, 23 in the direction of the mating contact ends 19, 20 or in the direction of the switch-on position.
  • the lower ends of the closing springs 22, 23 are supported on the housing wall 24.
  • a pressure ram 25 made of insulating material with its front end.
  • the plunger 25 is mounted in the pressure switch of the closing springs 22, 23 or at right angles to the longitudinal extent of the contact bridge between the housing walls 27 within the fuse switch 1. Because it rests on the contact bridge 15, it lies in the intermediate space between the mating contact ends 19, 20 which are electrically conductively connected to one another by the contact bridge 15 when in use.
  • the rocker switch 16 is pivotally mounted on the safety switch 1 about the axis of rotation 28 running perpendicular to the plane of the drawing. It is provided at its end 29 facing the pressure tappet 25 with a recess 30 for receiving the rocker arm-side link - hereinafter called rocker arm link 31 - one formed from the link arm 31 and the further link 32 and designated 33 as a whole.
  • the free end of the rocker arm 31 is pivotally mounted about the axis of rotation 28 of the rocker arm 16.
  • the handlebar 32 serves as a pressure transmission part and rests with its free end 34 on the rear side of the pressure ram 25 facing away from the contact bridge 15.
  • the free end 34 of the link 32 rests in a notch 35 arranged on the rear of the pressure ram 25 in such a way that that it can be pivoted about a certain angular amount around the gusset of the notch 35 in the plane of the drawing of the figures. Due to the action of the contact bridge 15 and the pressure plunger 25 by the closing springs 22, 23, the handlebar 32 is permanently in the notch 35 with its free end 34.
  • the toggle lever 33 When the switching rocker 16 is transferred from the switched-on position (FIG. 1) to the switched-off position (FIG. 2), the toggle lever 33 is pressed through its extended position (not shown) by the lower end of the recess 30 in the switching rocker 16. The articulation axis 37 of the toggle lever 33 moves downwards in the direction of the contact bridge 15. The push rod 25 is pressed downward via the link 32 (arrow direction 26) and the contact bridge 15 is lifted off the mating contact ends 19, 20 (FIG. 2).
  • the structure and mode of operation of the locking device for the shift rocker 16 will be briefly described below. It essentially contains a locking bracket 37 running in the direction of the arrow 26, which is fastened with its contact-side end 38 to the mating contact 14 in the edge region of the shaft 4 on the contact bridge side.
  • the free end 39 of the locking bracket 37 is located around the circumferential area of the end 29 of the rocker arm 16.
  • the recess 30 is opposite this free end 39 of the locking bracket.
  • the counter contact 14 of the fuse link 5 is acted upon from its underside by the contact spring 40, which is supported with its foot on the housing wall 24. In the switched-off position (FIG.
  • the rocker arm 16 is designed as a lever and is mounted on the safety switch 1 so that it can pivot about the axis of rotation 28. It is essentially L-shaped, the L horizontal leg 43 merging at its free end into a cylindrical roller 44 arranged concentrically about the axis of rotation 28. In its peripheral region on the contact side, this cylindrical roller 44 has the recess 30, into which the locking bracket 36 engages when the fuse link 5 is not or not correctly inserted and in which the switching rocker arm 31 lies.
  • the contact-side part of the cylindrical roller 44 thus serves as the drive arm 45 for the toggle lever 33 and thus for the actuation of the contact bridge 15 via the pressure tappet 25.
  • the contact-side part of the cylindrical roller 44 together with the L-shaped part is referred to as the actuating arm 46.
  • This actuating arm 46 is divided into an inner leg 47 and outer leg 48 by the knee joint 49 arranged in the transition region between the cylindrical roller 44 and the L horizontal leg 43.
  • fas knee joint 49 is acted upon by a torsion spring 51 mounted concentrically with its hinge axis 50 against the switch-on direction 41 of the switching rocker 16.
  • the loading force is transmitted through the free ends 53, 54 of the torsion spring 51 by the fact that they abut on the side of the inner leg 47 or outer leg 48 facing the folding direction 55.
  • the torsion spring has such a spring constant that the forces that can be transmitted through it are greater than the switch-on forces to be overcome, but less than the locking force of the latching device 56 produced by the locking bracket 37.
  • the knee joint 49 remains essentially in its extended position during the actuation process when the shift rocker 16 is not blocked (FIG. 1) due to the spring load.
  • the rocker arm is blocked (FIG. 3)
  • the knee joint 49 is moved into its kink position.
  • FIG. 3 shows a particularly advantageous embodiment for the formation of the switching rocker 16 with its knee joint 49.
  • the knee joint 49 lies in the recess 57 which extends in the transition region between the cylindrical roller 44 and the L-horizontal leg 43 without the free ends 53, 54 the torsion spring 51 protrude beyond the contour surface of the rocker arm 16.
  • the division joint 58 extends in the circumferential area of the cylindrical roller 44.
  • the inner 47 and outer legs 48 have mutually facing stop surfaces 59, 60 which lie one inside the other in the extended position of the knee joint 49 (FIGS. 1, 2).
  • the angled shape of the abutment surfaces 59, 60 is advantageous in such a way that actuating forces occurring virtually in any direction are distributed as well as possible by the positive engagement of the angular surfaces.
  • the special design of the rocker arm 16 as an L-shaped part and cylindrical roller 44 also creates an increase in the mutual abutment surfaces 59, 60, which further reduces the specific surface pressures that occur.
  • a multiple-pole switch block can be formed by a plurality of fuse switches 1 arranged parallel to one another in accordance with FIGS. 1-3.
  • the individual rocker arms 16 are mounted coaxially on an axis of rotation 28.
  • the cylindrical rollers 44 forming the inner leg 47 of the actuating arm 46 or the drive arms 45 are rigidly connected to one another. In practice, this is achieved by using an integral, continuous cylindrical roller 44 for the individual fuse switches 1 of the fuse block.
  • This rigid connection ensures that when a siche is locked tion switch 1 the entire fuse block is locked by engaging the relevant locking bracket 37 in a recess 30. Since the outer legs 48 of the rocker arm 16 can each be bent off by the knee joint 49, the securing block can neither be actuated nor the latch 56 destroyed by violently moving the rocker arm 16 into the switch-on position (FIG. 1).

Landscapes

  • Keying Circuit Devices (AREA)
  • Fuses (AREA)
  • Electronic Switches (AREA)
  • Mechanical Control Devices (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Slide Switches (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Relay Circuits (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Lock And Its Accessories (AREA)
  • Burglar Alarm Systems (AREA)
  • Breakers (AREA)
  • Air-Flow Control Members (AREA)

Claims (14)

1. Interrupteur avec coupe-circuit (1), à commande manuelle, comprenant un élément de manoeuvre (16) monté oscillant et un puits (4) recevant la cartouche fusible (5),
dont l'élément de manoeuvre (16) recouvre le puits (4) pour la cartouche fusible (5) à la position enclenchée de l'interrupteur (1),
-l'élément de manoeuvre (16)
-étant réalisé à la façon d'un levier,
-comportant un bras d'actionnement (46) et un bras de commande (45) et
-le bras de commande (45) étant bloqué par un verrouillage (56) à la position ouverte de l'élément de manoeuvre (16) lorsque la cartouche fusible (5) est enlevée ou n'a pas été mise en place convenablement,

caractérisé en ce que le bras de commande (45) de l'élément de manoeuvre (16) contient une genouillière (49) qui partage le bras d'actionnement (46) en une branche intérieure (47) et une branche extérieure (48) et qui est chargée par ressort en sens contraire à la direction d'enclenchement (41) de l'élément de manoeuvre (16).
2. Interrupteur avec coupe-circuit selon la revendication 1, caractérisé en ce que la direction de fléchissement (55) de la genouillère (49) et la direction d'enclenchement (41) de l'élément de manoeuvre (16) ont le même sens.
3. Interrupteur avec coupe-circuit selon la revendication 1 ou 2, caractérisé en ce que le ressort exerçant la charge élastique dans la genouillère (49) est un ressort de torsion (51) coaxial à l'axe d'articulation (50) de la genouillère (49) et dont les extrémités libres (53, 54) sollicitent d'un côté la branche intérieure (47) et de l'autre côté la branche extérieure (48) du bras d'actionnement (46) du côté tourné vers la direction de fléchissement (55).
4. Interrupteur avec coupe-circuit selon la revendication 3, caractérisé en ce que le ressort de torsion (51) possède une constante de rappel telle que les forces transmissibles par lui sont plus grandes que les forces d'enclenchement à vaincre, mais plus petites que la force de blocage du verrouillage (56), de manière que, lors d'un actionnement alors que l'élément de manoeuvre (16) n'est pas bloqué, la genouillère (49) conserve essentiellement sa position étendue sous l'effet de la charge élastique et que, lorsque l'élément de manoeuvre (16) est bloqué, la genouillère (49) prenne sa position fléchie.
5. Interrupteur avec coupe-circuit selon une des revendications précédentes, caractérisé en ce que la genouillère (49) est disposée dans la région située à l'intérieur du bras d'actionnement (46), à proximité de l'axe de rotation (28) de l'élément de manoeuvre (16).
6. Interrupteur avec coupe-circuit selon une des revendications précédentes, caractérisé en ce que le bras d'actionnement (46) de l'élément de manoeuvre (16) est en L, avec une branche verticale de L qui recouvre le puits (4) en position enclenchée et qui libère l'accès au puits (4) à la position coupée, la genouillère (49) étant disposée du côté intérieur de la branche horizontale (43) du L, laquelle contient l'axe d'articulation (50).
7. Interrupteur avec coupe-circuit selon la revendication 6, caractérisé en ce que la branche horizontale (43) du L présente sur son côté intérieur, tourné vers la direction de fléchissement (55), un évidement (57) dans lequel est située la genouillère (49).
8. Interrupteur avec coupe-circuit selon la revendication 7, caractérisé en ce que le ressort de torsion (51) est disposé à l'intérieur de la surface d'enveloppe du L.
9. Interrupteur avec coupe-circuit selon une des revendications précédentes, caractérisé en ce que la branche intérieure (47) et la branche extérieure (48) du bras d'actionnement (46) présentent des surfaces de butée (59, 60) disposées derrière la genouillère (49), du côté opposé à la direction de fléchissement, surfaces qui sont dirigées l'une vers l'autre et sont destinées à s'appliquer l'une contre l'autre.
10. Interrupteur avec coupe-circuit selon la revendication 9, caractérisé en ce que les surfaces de butée (59, 60) ont une forme angulaire et s'appliquent l'une dans l'autre, essentiellement avec complémentarité de formes, à la position étendue de la genouillère (49).
11. Interrupteur avec coupe-circuit selon une des revendications précédentes, caractérisé en ce que la branche intérieure (47) du bras d'actionnement (46) et le bras de commande (45) sont formés conjointement par une pièce cylindrique (44) montée rotative.
12. Bloc de commutation multipolaire, constitué d'interrupteurs avec coupe-circuit (1) selon une des revendications précédentes, disposés parallèlement l'un à côté de l'autre, caractérisé en ce que les éléments de manoeuvre (16) sont montés coaxialement et les bras de commande (45) ou les branches intérieures (47) des bras d'actionnement (46) sont reliés rigidement entre eux pour le mouvement rotatif d'enclenchement et de coupure.
13. Bloc de commutation multipolaire, constitué d'interrupteurs avec coupe-circuit (1) selon une des revendications 1 à 11, disposés parallèlement l'un à côté de l'autre, caractérisé en ce que les branches extérieures (48) des bras d'actionnement (46) sont reliées rigidement entre elles pour le mouvement rotatif d'enclenchement et de coupure.
14. Bloc de commutation multipolaire selon la revendication 13, caractérisé en ce que les branches extérieures (48) sont fabriquées d'un seul tenant en matière plastique.
EP85113604A 1984-12-12 1985-10-25 Interrupteur avec coupe-circuit Expired - Lifetime EP0184652B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85113604T ATE54512T1 (de) 1984-12-12 1985-10-25 Sicherungsschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3445285 1984-12-12
DE3445285A DE3445285C1 (de) 1984-12-12 1984-12-12 Sicherungsschalter

Publications (3)

Publication Number Publication Date
EP0184652A2 EP0184652A2 (fr) 1986-06-18
EP0184652A3 EP0184652A3 (en) 1987-11-11
EP0184652B1 true EP0184652B1 (fr) 1990-07-11

Family

ID=6252566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85113604A Expired - Lifetime EP0184652B1 (fr) 1984-12-12 1985-10-25 Interrupteur avec coupe-circuit

Country Status (7)

Country Link
EP (1) EP0184652B1 (fr)
AT (1) ATE54512T1 (fr)
DE (2) DE3445285C1 (fr)
DK (1) DK165082C (fr)
ES (1) ES290898Y (fr)
GR (1) GR852776B (fr)
NO (1) NO163469C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10115777A1 (de) * 2001-03-29 2003-05-15 Mueller Jean Ohg Elektrotech Mehrpoliges Schaltgerät für den Einsatz auf Sammelschienensystemen

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8611082U1 (de) * 1986-04-23 1986-07-17 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg Handbetätigter elektrischer Schalter
DE8715617U1 (fr) * 1987-11-25 1988-03-03 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg, De
DE8802457U1 (fr) * 1988-02-25 1988-05-05 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg, De
DE3924371A1 (de) * 1989-07-22 1991-01-24 Hollandse Apparatenfab Elektrisches schaltgeraet
DE9211229U1 (de) * 1992-08-21 1994-01-05 Lindner Gmbh Sicherungsschalter mit beidseitiger Spannungstrennung
DE4435828C1 (de) * 1994-10-07 1996-04-25 Woehner Alfred Gmbh Schaltbarer mehrpoliger Sicherungssockel
PL183078B1 (pl) * 1997-12-04 2002-05-31 Legrand Fael Sp Z Oo Rozłącznik bezpiecznikowy
US7855873B2 (en) * 2004-09-13 2010-12-21 Cooper Technologies Company Panelboard for fusible switching disconnect devices
DE102005015399B3 (de) * 2005-04-04 2006-05-18 Klaus Bruchmann Schaltersicherungseinheit
DE102005032139B4 (de) * 2005-07-07 2006-12-21 Siemens Ag Sicherungslasttrennschalter mit reduzierter Sicherungseinschubkraft
CN102194616A (zh) 2010-03-12 2011-09-21 库帕技术公司 带有可打开的端子盖板的熔断式断路开关

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2618360C3 (de) * 1976-04-27 1983-11-03 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg Sicherungssockel mit eingebautem Schalter
DE2934149C2 (de) * 1979-08-23 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Niederspannungs-Lastschalter mit Sicherung.
DE3027561A1 (de) * 1980-07-21 1982-02-25 Siemens AG, 1000 Berlin und 8000 München Niederspannungs-lastschalter mit sicherung
DE3112295A1 (de) * 1981-03-27 1982-10-14 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg Sicherungssockel fuer schmelzsicherungseinsaetze

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10115777A1 (de) * 2001-03-29 2003-05-15 Mueller Jean Ohg Elektrotech Mehrpoliges Schaltgerät für den Einsatz auf Sammelschienensystemen

Also Published As

Publication number Publication date
DE3445285C1 (de) 1986-04-30
NO854936L (no) 1986-06-13
EP0184652A2 (fr) 1986-06-18
DK573685A (da) 1986-06-13
ATE54512T1 (de) 1990-07-15
GR852776B (fr) 1986-03-14
EP0184652A3 (en) 1987-11-11
DK573685D0 (da) 1985-12-11
DK165082C (da) 1993-02-15
NO163469B (no) 1990-02-19
ES290898Y (es) 1986-11-16
NO163469C (no) 1990-05-30
DE3578642D1 (de) 1990-08-16
ES290898U (es) 1986-04-01
DK165082B (da) 1992-10-05

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