EP0176402B1 - Schalter mit Selbstunterbrechung, insbesondere Differentialschalter und Schutzschalter - Google Patents

Schalter mit Selbstunterbrechung, insbesondere Differentialschalter und Schutzschalter Download PDF

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Publication number
EP0176402B1
EP0176402B1 EP85401678A EP85401678A EP0176402B1 EP 0176402 B1 EP0176402 B1 EP 0176402B1 EP 85401678 A EP85401678 A EP 85401678A EP 85401678 A EP85401678 A EP 85401678A EP 0176402 B1 EP0176402 B1 EP 0176402B1
Authority
EP
European Patent Office
Prior art keywords
base
support
unit
cover
contact
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
EP85401678A
Other languages
English (en)
French (fr)
Other versions
EP0176402A1 (de
Inventor
Jean-Marie Roiatti
Luc Geny
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.)
Hager Electro SAS
Original Assignee
Hager Electro 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 Hager Electro SAS filed Critical Hager Electro SAS
Priority to AT85401678T priority Critical patent/ATE43199T1/de
Publication of EP0176402A1 publication Critical patent/EP0176402A1/de
Application granted granted Critical
Publication of EP0176402B1 publication Critical patent/EP0176402B1/de
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0221—Majority of parts mounted on central frame or wall
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H2071/0242—Assembling parts of a circuit breaker by using snap mounting techniques

Definitions

  • the invention relates to electrical devices with automatic cut-off, in particular differential switches, circuit breakers or differential circuit breakers, of the type which include a base made of insulating material, a support which can receive mechanical elements of the device and a breaking chamber. which is closed on all sides with the exception of an opening for the passage of at least one movable contact cooperating with a fixed contact and which contains armatures capable of creating a magnetic deionization field during the separation movement of the rivets contact, or the like, of fixed and mobile contacts, the support and the base being provided with mutual pivoting, guiding and positioning means such that the base can be approached from the support, brought to the position final mounting by pivoting relative to the support and maintained in this final position using a single screw, the assembly being completed by a cover surrounding the su pport and reported on the base.
  • the invention aims to facilitate the mounting of these devices.
  • the electrical appliance of the kind defined above is essentially characterized in that the support is an autonomous block of insulating material which receives most of the electrical and mechanical elements of the appliance - before mounting on the base and in which is arranged the breaking chamber, and in that the single screw passes through the base and is tightened in the block.
  • the above block thus fulfills the dual function of a mounting template and a framework of the device and it is easy to adapt and fix it to the base.
  • this spring is held on the base while the corresponding movable contact is maintained on the block, so that the fixing of the base to the block using the aforementioned single screw ensures the compression of the spring and consequently the pressurization of the corresponding movable contact.
  • This embodiment thus makes the fixing screw play an additional role, which simplifies the construction of the device.
  • the breaking chamber is closed laterally by a cover attached to the block and a plate is used both for holding the cover on the block and for supporting a test button of known type.
  • US-A-3,178,547 describes a circuit breaker, the only movable elements of the cutting mechanism of which are carried by a U-shaped part (31) which is fixed to a base (11) by engagement of a hook (45), carried on each side by the U-shaped part (31), in the notch of a bracket (47) which is fixed by a screw (48) to the base (11).
  • the U-shaped part (31) is then fixed to the base (11) by a single screw (61) which passes through this part (31) through a hole (62) and which is screwed into a nut (63) trapped in the base ( 11) during molding.
  • the head of the single screw (61) can only be reached by a screwdriver from inside the base (11), which requires leaving space in the U-shaped part (31) for the passage of such a screwdriver.
  • On the base (11) are directly connected cut-off chambers with extinguishing armatures (40) and an automatic overload tripping device (21, 97).
  • the U-shaped part (31) thus does not fulfill the dual function of a mounting template and framework for the device.
  • the U-shaped part (31) abuts (at 65) on the two above-mentioned brackets (47), which makes the fixing position uncertain.
  • US-A-3178547 also does not suggest using the pivoting around the hooks (47) to ensure the compression of a spring with pressurization of the movable contacts (25).
  • the invention applies particularly well to a differential switch of the kind described in French patent application FR-A-2552931 filed by the applicant on October 4, 1983.
  • the differential switch comprises, as shown in particular in Figure 6, a toggle and snap mechanism 1, between a rotary manual actuation member or lever 2 with actuation button 2a and a holder tilting contact 3 on which is mounted at least one movable contact 4 cooperating with a fixed contact 5 and which is biased by a first spring 6 in the direction of opening or separation of the movable contact 4 relative to the fixed contact 5.
  • movable contacts 4 cooperating respectively with two fixed contacts 5 and each biased by a spring 6.
  • the assembly of the contact carrier 3 and of the movable contacts 4 is preferably arranged in the manner described in French patent application FR-A-2 552 926 filed by the applicant on October 4, 1983, that is to say so that the same (s) ) spring (s) 6 ensures (s) both the separation of the contacts 4 and 5 during the opening movement and the pressure of these contacts 4, 5 one on the other in the closed position.
  • the mechanism 1 is capable, on the one hand, when it is stretched, of transmitting the movement of the lever 2 to the contact carrier 3 both in the opening direction and in the closing direction and, on the other hand, when the mechanism 1 is relaxed by a relay 7 acting independently of the lever 2 on the latching of the mechanism 1, to cause the contact carrier 3 to return from its closed position to its open position.
  • the mechanism 1 is arranged so as to allow the lever 2 to reset the switch, that is to say to tighten the mechanism 1 by returning it from its open position after tripping to its normal open position shown in FIG. 6, after the intervention of the relay 7 has ceased and under the action of a second spring 8 acting on this lever 2.
  • the switch is housed in an insulating box which will be described in more detail below and from which the button 2a of the lever 2 emerges.
  • the latching of the mechanism 1 comprises a pawl 20, of axis 21, which is biased by a third spring 22, this pawl 20 acting on the trigger lever 17.
  • the axis 21 is also parallel to the axes 11, 12, 14 , 15, 16 and 18 and it is linked to the housing.
  • the fixed axis 18 of the trigger lever 17 is located in such a way that, in the closed position, this trigger lever 17 is approximately parallel to the assembly of the connecting rod 10 and the connecting rod 13, this axis then being practically aligned with the axis 11 between lever 2 and connecting rod 10.
  • the connecting rod 10 consists of a rectilinear rod, the two ends of which are folded at a right angle so as to respectively constitute the articulation axis 11 of the connecting rod 10 with the lever 2 and its articulation axis 14 with the connecting rod 13
  • the link 13 is advantageously made up of two parallel individual links 13a and 13b so that the part 3a of the contact carrier 3, by which the articulation with the double link 13 takes place, is placed between the two individual links 13a, 13b.
  • a connecting bar 43 secures these two individual links 13a, 13b together.
  • the length of the groove 19 of the trigger lever 17 is such that the articulation axis 14 between connecting rod 10 and connecting rod 13 abuts against one 23 of the longitudinal ends of this groove 19 during the resetting movement.
  • the relay 7 is a permanent magnet relay, which acts by a push rod 25 on the pawl 20, which forces the pawl 20 to exert on this push rod 25 a force sufficient to overcome the action of the spring. antagonist of the permanent magnet during the resetting of the relay 7.
  • a resetting spring 48 is arranged in such a way that, when the mechanism 1 is relaxed by action of the relay 7, the tension of this spring 48 is greatly increased, by a movement of separation of the two ends of this spring.
  • the pawl 20 is provided with a notch 28 suitable for receiving a spout 30 carried by the trigger lever 17.
  • the housing is provided with as many input terminals 32 as there are fixed contacts 5, which are electrically connected to these fixed contacts 5.
  • the or each fixed contact 5 carries a contact rivet 33 which cooperates with a rivet contact 34 carried by the or each corresponding movable contact 4.
  • the continuity of the electrical circuit is ensured by a braid 38 attached to the movable contact 4.
  • the rivet 33 is housed in a fixed position and the rivet 34 moves in a cut-off arc chamber or, more briefly, a break 35, which is closed on all sides except for an opening 36 necessary for the movement of the movable contact 4 or more exactly of the part of this movable contact 4 which is close to its contact rivet 34.
  • such an interrupting chamber 35 contains armatures 37 capable of creating a magnetic deionization field during the separation of the contact rivets 33 and 34.
  • the box On the side opposite that of the input terminals 32, the box is provided with output terminals 31 ..
  • the relay 7 is connected to a fault detection toroid 9 by a secondary winding 24.
  • the switch includes a test button 39 with which a resistor 40 is associated, a flexible contact 41, a return spring 56 and two metal tabs 57 and 73.
  • the switching chamber 35 is arranged in an autonomous block 26 of insulating material which is arranged so as to receive, separately or in the form of assemblies or sub-assemblies, the most of the electrical and mechanical elements of the device, and which is associated with a base 27 made of insulating material.
  • the block 26 and the base 27 are provided with mutual pivoting, guiding and positioning means which will be described in more detail below and such that the base 27 can be approached from the block 26 furnished with the above elements, brought to the position final mounting by pivoting relative to the block 26 (as will be explained in more detail with the aid of Figure 4) and maintained in this final position using a single screw 44 which passes through the base 27 by a hole 45 and which is clamped in the block 26, by engaging in a hole 46 formed in the latter.
  • the housing, which includes the block 26 and the base 27, is completed by a cover 47 surrounding the block 26 and attached to the base 27.
  • the spring 6 for pressurizing the or each movable contact 4 is maintained on the base 27 (see FIG. 2) while the corresponding movable contact 4 is maintained on the block 26, so that the fixing of the base 27 on the block 26 using the single screw 44 ensures the compression of the or each spring 6 and consequently the pressurization of the corresponding movable contact 4.
  • the interrupting chamber 35 is closed laterally by a cover 42 attached to the block 26 and a plate 29 is used both for holding the cover 42 on the block 26 and for supporting the test button 39 and associated elements to this one.
  • the aforementioned pivoting, guiding and positioning means, which are provided between the base 27 and the block 26, are distributed, on the side of the latter, between the block 26 and the cover 42 which form a rigid assembly after adapter of plate 29.
  • the axis 15 is introduced into the openings 49 of the individual rods 13a, 13b and into the opening 50 of the part 3a of the contact carrier 3, by hooking one of the ends of the resetting spring 48 to this axis 15. Then two axes 51 are introduced into the openings 52 of the contact holder 3 (to the right of its lower part, FIG. 1 shows a fragment of the contact holder 3 and one of the movable contacts 4 upside down).
  • Resistor 40 is introduced into the test button 39 and the flexible contact 41 is placed there, making the necessary welds.
  • test sub-assembly thus obtained between the plate or clip 29 and a wing 55 made in one piece with the plate 29 and parallel to it, by adapting the return spring 56 between the push button 39 and wing 55 of plate 29.
  • Fixed contacts 5 are introduced with or without contact blade 57 in terminals 32, as well as fixed contacts 58 in terminals 31.
  • a shock absorber 59 is fitted to each ear 53 of the relay 7 (see the detail on the left of FIG. 3).
  • the two springs 6 are fitted onto studs 60 (FIG. 6) provided for this purpose on the base 27.
  • the trigger lever 17 is presented on the axis 18 coming from molding with the block 26, then the pawl 20 on the axis 21 also coming from molding with the block 26.
  • the compression spring 22 is placed on the pawl 20.
  • the spout 30 of the trigger lever 17 is presented in the notch 28 of the pawl 20.
  • a reset piece 61 is then hooked to the other end of the tension spring 48 of the contact carrier sub-assembly.
  • the sub-assembly thus produced is then presented on the block 26, by engaging one of the axes 16 of the contact carrier 3 in a bearing 62 of the block 26 and the axis 63 of the reset piece 61 in another bearing 64 from block 26.
  • torsion spring 8 in the handle 2 and the latter on an axis 65 molded with the block 26, placing the end of the spring 8 behind the axis 18 of the trigger lever 17, which retains the latter laterally.
  • the axis 14 of the connecting rod 10 is presented in holes 66 of the connecting rod 13 and in the groove 19 of the trigger lever 17 and the axis 11 of the connecting rod 10 in an eccentric bearing 67 of the lever 2 by making turn it to obtain the center distance of the connecting rod 10.
  • the cover 42 is centered on the block 26 with the other axis 16a of the contact carrier 3 in a bearing 68 provided on the cover 42 and the other axis 63 of the reset piece 61, in a bearing (not shown) also provided on the cover 42 and by engaging the end of the axis 15 in a light in an arc 69 which passes through the cover 42. Then the cover 42 is locked on the block 26 by lowering the plate 29 as indicated by the arrow F1 in FIG. 2, up to the position represented by the detail view located at the top left of FIG. 2, which produces a stapling by engagement of the wing 55 of the plate 29 in a notch 70 of the block 26 and by hooking a notch 71 of the block 26 on the edge of an opening 72 formed in the plate 29.
  • the armored deionization sub-assemblies 37 are also presented in the breaking chamber 35 of the block 26 as well as the fixed contacts 5 on the block 26.
  • the test tab 73 is embedded on the block 26.
  • the two movable contacts 4 in the housings provided for this purpose in the contact holder 3 and the relay sub-assembly is stapled to the block 26 by inserting the ears 53 fitted with shock absorbers 59 successively in openings 74 of the cover 42 and 75 of the block 26, as shown in the detail view to the left of the upper part of Figure 3.
  • These means advantageously include two spouts 76 and 77 provided respectively on the block 26 and the cover 42 and two corresponding notches 78 provided on the base 27, the assembly being such that, when the spouts 76, 77 are inserted respectively in the notches 78 , the assembly 26, 42 can be pivoted relative to the base 27 according to the arrow F2 in FIG. 4 or, more generally, the base 27 relative to the assembly 26, 42.
  • These means further comprise flanges 79 surrounding the base 27 and suitable for receiving and guiding between them the lateral faces of the assembly 26, 42 and that of the .transversate faces of this assembly which is furthest from the spouts 76, 77.
  • These means may include in addition to projections and recesses which are formed on the elements 26, 42 and 27 and which engage with one another during the abovementioned pivoting movement.
  • the terminals 31 are presented in housings provided for this purpose between the elements 26, 42 and 27 and the various electrical connections are made (the product thus obtained being represented at the bottom of FIG. 5). We then proceed on this product to the sensitivity settings of relay 7 and to the mechanical and electrical checks of the differential switch. Finally, the cover 47 is adapted to the product, as shown schematically by the arrows F3 in FIG. 5, by introducing elastic snap tabs 81, molded with the cover 47, in notches 82 provided for this purpose in the base 27 (see the detail view on the left of FIG. 5), passing the button 2a of the lever 2 and the push button 39 respectively through openings 83 and 84 formed in the cover 47. The switch differential is then ready to use.

Landscapes

  • Breakers (AREA)
  • Keying Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Claims (4)

1. Elektrogerät. mit automatischer Stromabschaltung, enthaltend einen Sockel (27) aus Isoliermaterial, einen Träger (26) für die Aufnahme der mechanischen Elemente des Geräts und eine Abschaltkammer (35), die, mit Ausnahme einer Öffnung (36) für den Durchgang zu mindestens einem zusammen mit einem feststehenden Kontakt (5) funktionierenden beweglichen Kontakt (4), auf allen Seiten geschlossen ist und Anker (37) enthält, mit denen bei der Trennungsbewegung der Kontaktnieten (33, 34) ein magnetisches Entionisierungsfeld erzeugt wird, oder gleichartige Elemente, einen oder mehrere feststehende und bewegliche Kontakte (33, 34), wobei der Träger (26) und der Sockel (27) mit gegenseitigen Dreh-Führungs- und Positioniervorrichtungen (76, 77, 78, 79) derart ausgerüstet sind, daß der Sockel (27) an den Träger (26), der durch Drehung im Verhältnis zum Träger (26) in der endgültigen Montageposition eingerichtet ist und mit Hilfe einer einzigen Schraube (44) in dieser endgültigen Position gehalten wird, herangeführt wird, wobei das Ganze durch eine Haube (47), die den Träger (26) umhüllt und auf den Sockel (27) heruntergezogen ist, vervollständigt wird, besonders gekennzeichnet dadurch, daß der Sockel (26) ein eingenstandiger Block (26) aus Isolierma- . terial ist, der den größten Teil der elektrischen und mechanischen Elemente des Geräts vor der Montage auf den Sockel (27) aufnimmt und in dem die Abschaltkammer (35) untergebracht ist, und gekennzeichnet dadurch, daß die einzige Schraube (44) durch den Sockel (27) durchgeht und im Block (26) angezogen ist.
2. Gerät gemäß Anspruch 1, in dem der oder jeder bewegliche Kontakt (4) mit einer auf Druck reagierenden Feder (6) ausgerüstet sind, besonders gekennzeichnet dadurch, daß die Feder (6) auf dem Sockel (27) gehalten wird, während der entsprechende bewegliche Kontakt (4) so auf dem Block (26) gehalten wird, daß die Befestigung des Sockels (27) an dem Block (26) mit Hilfe der vorstehend erwähnten einzischraube (44) das Zusammendrücken der oder jeder Feder (6) und demzufolge gewährleistet, daß der entsprechende bewegliche Kontakt (4) unter Druck gesetzt wird.
3. Gerät gemäß einem der Ansprüche 1 und 2, besonders gekennzeichnet dadurch, daß die Abschaltkammer (35) seitlich durch eine auf den Block (26) heruntergezogene Abdeckung (42) abgeschlossen ist, und dadurch, daß eine Tragplatte (29) gleichzeitig der Festhaltung der Abdekkung (42) auf dem Block (26) und der Halterung eines Testknopfs (39) bekannten Typs dient.
4. Gerät gemäß Anspruch 3, gekennzeichnet dadurch, daß die Dreh-, Führungs- und Positioniervorrichtungen auf dem Block (26), bzw. auf der Abdeckung (42) vorgesehene Haken (76, 77) enthalten, die entsprechend in die im Sockel (27) vorgesehenen Aussparungen einrasten.
EP85401678A 1984-09-06 1985-08-23 Schalter mit Selbstunterbrechung, insbesondere Differentialschalter und Schutzschalter Expired EP0176402B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85401678T ATE43199T1 (de) 1984-09-06 1985-08-23 Schalter mit selbstunterbrechung, insbesondere differentialschalter und schutzschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8413744 1984-09-06
FR8413744A FR2569901B1 (fr) 1984-09-06 1984-09-06 Perfectionnements apportes aux interrupteurs a coupure automatique, notamment aux interrupteurs differentiels et disjoncteurs

Publications (2)

Publication Number Publication Date
EP0176402A1 EP0176402A1 (de) 1986-04-02
EP0176402B1 true EP0176402B1 (de) 1989-05-17

Family

ID=9307505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85401678A Expired EP0176402B1 (de) 1984-09-06 1985-08-23 Schalter mit Selbstunterbrechung, insbesondere Differentialschalter und Schutzschalter

Country Status (4)

Country Link
EP (1) EP0176402B1 (de)
AT (1) ATE43199T1 (de)
DE (1) DE3570321D1 (de)
FR (1) FR2569901B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103474298A (zh) * 2013-09-30 2013-12-25 苏州路美思电气有限公司 一种漏电保护器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2626105B1 (fr) * 1988-01-20 1990-06-15 Hager Electro Appareil de protection d'installations electriques
FR2686453B1 (fr) * 1992-01-17 1994-04-08 Legrand Interrupteur differentiel.
AT502415B1 (de) * 2003-08-19 2007-03-15 Moeller Gebaeudeautomation Kg Prüftaster, anschlussverbindung für einen prüftaster, schutzschalter und verfahren zur herstellung eines schutzschalters

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3143627A (en) * 1960-04-15 1964-08-04 Gen Electric Multipole circuit breaker with three part insulating casing
US3178547A (en) * 1961-05-10 1965-04-13 Ite Circuit Breaker Ltd Mechanism mounting device for circuit breaker
AT339991B (de) * 1974-02-08 1977-11-25 Schrack Elektrizitaets Ag E Fehlerstrom- bzw. fehlerspannungsschutzschalter od.dgl.
FR2436491A1 (fr) * 1978-09-12 1980-04-11 Merlin Gerin Disjoncteur electrique multipolaire basse tension a blocs auxiliaires de commande
DE2915091C2 (de) * 1979-04-12 1981-07-30 Siemens AG, 1000 Berlin und 8000 München Fehlerstromschutzschalter
FR2530073A1 (fr) * 1982-07-12 1984-01-13 Merlin Gerin Interrupteur differentiel bipolaire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103474298A (zh) * 2013-09-30 2013-12-25 苏州路美思电气有限公司 一种漏电保护器

Also Published As

Publication number Publication date
FR2569901B1 (fr) 1986-12-26
EP0176402A1 (de) 1986-04-02
ATE43199T1 (de) 1989-06-15
FR2569901A1 (fr) 1986-03-07
DE3570321D1 (en) 1989-06-22

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