EP0773566B1 - Elektrisches Gerät mit auf einen Kontaktträger montierten beweglichen Kontakten - Google Patents

Elektrisches Gerät mit auf einen Kontaktträger montierten beweglichen Kontakten Download PDF

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Publication number
EP0773566B1
EP0773566B1 EP96402342A EP96402342A EP0773566B1 EP 0773566 B1 EP0773566 B1 EP 0773566B1 EP 96402342 A EP96402342 A EP 96402342A EP 96402342 A EP96402342 A EP 96402342A EP 0773566 B1 EP0773566 B1 EP 0773566B1
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EP
European Patent Office
Prior art keywords
contact
movable contact
electrical apparatus
support
movable
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
EP96402342A
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English (en)
French (fr)
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EP0773566A1 (de
Inventor
Guy Cottone
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.)
Legrand SA
Legrand SNC
Original Assignee
Legrand SA
Legrand SNC
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Filing date
Publication date
Application filed by Legrand SA, Legrand SNC filed Critical Legrand SA
Publication of EP0773566A1 publication Critical patent/EP0773566A1/de
Application granted granted Critical
Publication of EP0773566B1 publication Critical patent/EP0773566B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • 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
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/225—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member the supporting member being pivotable

Definitions

  • the present invention relates generally electrical appliances of the kind comprising, in a housing, a contact support (s), on which is rotatably mounted at least a mobile contact, and which, generally arranged facing at least minus a fixed contact, is itself mounted mobile in the case, between an open position, for which the movable contact is at a distance from the fixed contact, and a position closing, for which this movable contact is on the contrary applied to this fixed contact, with, associated with the mobile contact, elastic means, which, bearing on the support of contact (s), permanently solicit him towards a stop intended for him on this contact support (s).
  • this electrical appliance is a differential switch of the type for example of that described in the French patent which, filed on January 17, 1992 under No. 92 00452, was published under No. 2 686 453.
  • the contact support (s) includes, for the rotary mounting of the movable contact, a cross member forming a pivot, and the movable contact is hooked onto this crosspiece by a swivel portion in the form of U whose concavity is generally turned towards the stop provided for him on the contact support (s).
  • the present invention generally has for subject a provision to minimize these disadvantages.
  • a device electric of the kind comprising, in a housing, a support of contact (s), on which at least one contact is rotatably mounted mobile, and which, generally arranged facing at least one fixed contact, is itself mounted mobile in the housing between an open position for which the movable contact is away from the fixed contact and a closed position for which mobile contact is on the contrary applied to this fixed contact,
  • this contact support (s) comprising, for the rotary mounting of the movable contact, a cross member forming a pivot on which the movable contact is hooked by a portion of swiveling, with, associated with the mobile contact, means elastic, which, bearing on the contact support (s), constantly request this mobile contact towards a stop provided for him on the contact support (s),
  • this electrical apparatus being generally characterized in that the stop which comprises the contact support (s) for the movable contact is, like a hook, preceded by an oblique ramp.
  • the swivel portion through which the movable contact is first hooked on the cross of the contact support (s) is preferably generally V-shaped.
  • the elastic means associated with this mobile contact are preferably constituted by a simple compression spring, of the coil spring type, the price of which is advantageously moderate, and which is implemented itself relatively easily, to the extent, at least, where it can advantageously operate flat on a spike of the contact support, without prior positioning relative to in mobile contact.
  • this electrical appliance 10 comprises, in a housing 11, a contact support 12, on which is rotatably mounted at minus a movable contact 13A, 13B, and which, generally arranged facing at least one fixed contact 14A, 14B, is itself mounted mobile in the housing 11, between a position opening, for which the movable contact 13A, 13B is at distance from the fixed contact 14A, 14B, and a position of closure, for which this movable contact 13A, 13B is at otherwise applied against this fixed contact 14A, 14B.
  • the housing 11 is formed by a base 15 which, in the form of a body box, constitutes the lower part thereof, and a cover 16, which, adapted to cooperate in interlocking with the base 15, in constitutes the upper part, with, on the surface thereof, a joystick 18 available to the user.
  • the housing 11 presents itself in modular form, and it is equipped, on the underside, with a lock 19 suitable for being snapped onto a standardized rail.
  • the contact support 12 is rotatably mounted in the housing 11, and, more precisely, in the base 15 thereof.
  • This axis of rotation A extends perpendicular to the main faces 22 of the housing 11.
  • two fixed contacts 14A, 14B being provided at a distance from each other, parallel to the axis of rotation A, each belonging to two respectively input terminals 24A, 24B, contact holder 12 door, side side by side, in correspondence, each respectively, with these fixed contacts 14A, 14B, two movable contacts 13A, 13B.
  • the contact support 12 For rotary mounting of these two movable contacts 13A, 13B, the contact support 12 comprises, in alignment one from the other, and parallel to the axis of rotation A, two crosspieces 25A, 25B forming pivots, and therefore of section generally circular.
  • the contact support 12 present, for each of the contacts mobile 13A, 13B, two flanges 26 which, in their part upper, are connected to each other by the crosspiece 25A, 25B correspondent, and between which this mobile contact is struggling 13A, 13B.
  • each of the movable contacts 13A, 13B is hooked by a swivel portion 27 on this cross 25A, 25B corresponding, and it is associated, with such a mobile contact 13A, 13B, elastic means 28, which, bearing on the contact support 12, permanently request this contact mobile 13A, 13B in the direction of a stop 29 provided for it on the contact support 12.
  • this stop 29 occurs between the movable contact 13A, 13B and fixed contact 14A, 14B corresponding.
  • the stop 29 which thus comprises the contact support 12 for each of the movable contacts 13A, 13B is, like a hook, preceded by a ramp oblique 30.
  • the stop 29 and the oblique ramp 30 which precedes it are formed by the edge of at least one of the two corresponding flanges 26.
  • the two flanges 26 for at least one of the two flanges 26, and, in practice, for only one of them, in this case the outermost flange 26, stopper 29 and oblique ramp 30 which precedes it extend laterally on a lug 32, which protrudes from this flange 26 on the side thereof turned to the other flange 26, and, in correspondence, the contacts mobile 13A, 13B each have, for their engagement on such a lug 32, a notch 33 making a key.
  • Each of the movable contacts 13A, 13B is formed by a metal plate suitably cut and folded.
  • these movable contacts 13A, 13B each have a middle portion 34, on which the means relate elastic bands 28 associated therewith, and a contact portion 35, by which they are adapted to cooperate with the contacts fixed 14A, 14B.
  • the swivel portion 27 forms a portion end for movable contacts 13A, 13B, and so on likewise for the contact portion 35, this extending from the other side of the middle portion 34 relative to this swivel portion 27.
  • the swivel portion 27 has a reduced width compared to to that of the middle portion 34, however that, for the guide the assembly, the width of this middle portion 34 is substantially equal to the distance between one and the other the two corresponding flanges 26 of the contact support 12, while being slightly less than this distance.
  • journal portion 27 of the movable contact 13A, 13B is generally V-shaped.
  • first section 36 which makes a first bend 37 with the middle portion 34
  • second section 38 which with the first section 36 a second bend 39 in the opposite direction first elbow 37.
  • the first elbow 37 is more open than the second elbow 39.
  • first elbow 37 generally forms a angle A slightly less than 90 °
  • second elbow 39 generally forms an angle B significantly less than 90 °, being for example close to 60 °.
  • the second elbow 39 at least, is largely rounded.
  • movable contacts 13A, 13B each have a shoulder 40 transversely.
  • this shoulder 40 belongs to at least a finger 42 which projects laterally on the edge of a such movable contact 13A, 13B, on at least one side thereof.
  • the movable contacts 13A, 13B each have two fingers 42, reason for one per flange 26 of the contact support 12, and that of these fingers 42 which is the outermost form, by its shoulder 40, one of the sides of the notch 33 which comprises each of these movable contacts 13A, 13B.
  • this shoulder 40 also extends obliquely, in the manner of a chamfer, affecting the movable contacts 13A, 13B on the side of these facing the cross 25A, 25B on which they are crocheted.
  • the fingers 42 intervene at the end the middle portion 34 farthest from the portion of swivel 27, at the connection between this middle portion 34 and the contact portion 35.
  • the contact portion 35 of the movable contacts 13A, 13B has a width substantially equal to that of their middle portion 34.
  • this contact portion 35 projecting from a contact grain 44.
  • any conductor flexible electric 45 for example a braid, for its connection electrical with an output terminal 46A, 46B, via a differential transformer 47.
  • the contact portion 35 of the movable contacts 13A, 13B is slightly offset from their middle portion 34, in being offset towards the fixed contact 14A, 14B corresponding by a double inflection 48.
  • this contact portion 35 extends slightly obliquely relative to to the middle portion 34, moving away from the contact support 12 as it moves away from this portion median 34.
  • the means elastic bands 28 associated with each of the movable contacts 13A, 13B consist of a compression spring, of the spring type with sausage.
  • a spike 50 To facilitate the installation of elastic means 28, and to then guide them, it is provided, projecting from this surface 49, a spike 50.
  • the middle portion 34 of the movable contacts 13A, 13B has, in projection, in its central zone, a boss 51, which, in practice, results from a simple local stamping of this middle portion 34.
  • the elastic means 28 associated with this mobile contact 13A, 13B are first reported on the contact support 12, by engagement on the pin 50 correspondent of it.
  • the mobile contact 13A, 13B is crocheted, at an angle, through its swivel portion 27, on the crosspiece 25A, 25B concerned with the contact support 12, by engagement of the second section 38 of this portion of journal 27 behind this crosspiece 25A, 25B.
  • the contact mobile 13A, 13B is then pivoted around the crosspiece 25A, 25B of the contact support 12, which leads to its shoulder 40 to contact the corresponding oblique ramp 30 of it, and which jointly provides compression progressive elastic means 28.
  • the first section 36 of the journaling portion 27 of the contact mobile 13A, 13B is in contact with this cross 25A, 25B, like the second section 38.
  • this first section 36 then extends substantially perpendicular to the stop 29 and the bearing 49 of the contact support 12.
  • this crosspiece 25A, 25B has, protruding, lugs 55, which, having regard to the reduced width of it, locally frame their portion of swivel 27.
  • the scope of the invention does not is not limited to only differential switches of the type of the one more particularly described and represented, but extends on the contrary as well to all electrical devices comprising a contact support (s) on which is mounted rotary at least one movable contact.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Push-Button Switches (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Massaging Devices (AREA)

Claims (21)

  1. Elektrische Vorrichtung, die in einem Gehäuse (11) einen Kontakt(e)träger (12) aufweist, auf dem mindestens ein beweglicher Kontakt (13A, 13B) drehbar montiert ist und der im wesentlichen gegenüber mindestens einem feststehenden Kontakt (14A, 14B) angeordnet ist und selbst im Gehäuse (11) beweglich ist zwischen einer Öffnungsstellung, in der der bewegliche Kontakt (13A, 13B) sich in einem Abstand vom feststehenden Kontakt (14A, 14B) befindet, und einer Schließstellung, in der der bewegliche Kontakt (13A, 13B) dagegen an diesen feststehenden Kontakt (14A, 14B) angelegt ist, wobei dieser Kontakt(e)träger (12) für die drehbare Montage des beweglichen Kontakts (13A, 13B) einen eine Drehachse bildenden Steg (25A, 25B) aufweist, in den der bewegliche Kontakt (13A, 13B) mit einem Drehlagerbereich (27) eingehakt ist, wobei dem beweglichen Kontakt (13A, 13B) elastische Mittel (28) zugeordnet sind, die sich an dem Kontakt(e)träger (12) abstützen und den beweglichen Kontakt (13A, 13B) ständig in Richtung eines für ihn am Kontakt(e)träger (12) vorgesehenen Anschlags (29) beaufschlagen, dadurch gekennzeichnet, daß dem Anschlag (29), den der Kontakt(e)träger (12) für den beweglichen Kontakt (13A, 13B) aufweist, nach der Art eines Hakens eine Schräge (30) vorhergeht.
  2. Elektrische Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Drehlagerbereich (27) des beweglichen Kontakts (13A, 13B) im wesentlichen V-förmig ausgebildet ist.
  3. Elektrische Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß, wenn der bewegliche Kontakt (13A, 13B) einen Mittelbereich (34) aufweist, auf dem die ihm zugeordneten elastischen Mittel (28) aufliegen, sein Drehlagerbereich (27) von diesem Mittelbereich (34) an nacheinander zwei Abschnitte aufweist, und zwar einen ersten Abschnitt (36), der mit dem Mittelbereich (34) eine erste Krümmung (37) bildet, und einen zweiten Abschnitt (38), der mit dem ersten Abschnitt (36) eine zweite, zur ersten Krümmung (37) gegensinnige Krümmung (39) bildet.
  4. Elektrische Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die erste Krümmung (37) des beweglichen Kontakts (13A, 13B) offener als seine zweite Krümmung (39) ist.
  5. Elektrische Vorrichtung nach einem der Ansprüche 3, 4, dadurch gekennzeichnet, daß die erste Krümmung (37) des beweglichen Kontakts (13A, 13B) im wesentlichen einen Winkel (A) bildet, der etwas kleiner als 90° ist.
  6. Elektrische Vorrichtung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß die zweite Krümmung (39) des beweglichen Kontakts (13A, 13B) im wesentlichen einen Winkel (B) bildet, der deutlich kleiner als 90° ist.
  7. Elektrische Vorrichtung nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, daß wenigstens die zweite Krümmung (39) des beweglichen Kontakts (13A, 13B) stark abgerundet ist.
  8. Elektrische Vorichtung nach einem der Ansprüche 3 bis 7, dadurch gekennzeichnet, daß der zweite Abschnitt (38) des Drehlagerbereichs (27) des beweglichen Kontakts (13A, 13B) eine in Richtung des Stegs (25A, 25B) des Kontakt(e)trägers (12) vorstehende Nase (52) und der Steg (25A, 25B) in Entsprechung örtlich eine Abflachung (54) aufweist.
  9. Elektrische Vorrichtung nach einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, daß der Drehlagerbereich (27) des beweglichen Kontakts (13A, 13B) eine bezüglich der Breite des Mittelbereichs (34) verminderte Breite hat.
  10. Elektrische Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß der Steg (25A, 25B) des Kontakt(e)trägers (12) vorstehende Nasen (55) aufweist, die den Drehlagerbereich (27) des beweglichen Kontakts (13A, 13B) umrahmen.
  11. Elektrische Vorrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß der Drehlagerbereich (27) des beweglichen Kontakts (13A, 13B) für diesen einen Endbereich bildet.
  12. Elektrische Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß, wenn der Kontakt(e)träger (12) zwei Wangen (26) aufweist, die durch seinen Steg (25A, 25B) verbunden sind und zwischen denen sich der bewegliche Kontakt (13A, 13B) verschwenkt, der Anschlag (29), den dieser Kontakt(e)träger (12) für diesen beweglichen Kontakt (13A, 13B) trägt, und die diesem Anschlag (29) vorhergehende Schräge (30) von der Kante mindestens einer dieser beiden Wangen (26) gebildet sind.
  13. Elektrische Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß der Anschlag (29) und die ihm vorhergehende Schräge (30) auf die beiden Wangen (26) des Kontakt(e)trägers (12) verteilt sind.
  14. Elektrische Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß bei mindestens einer der Wangen (26) des Kontakt(e)trägers (12) der Anschlag (29) und die diesem vorhergehende Schräge (30) seitlich auf einem Vorsprung (32) verlängert sind, der auf dieser Wange (26) auf ihrer der anderen Wange (26) zugewandten Seite vorsteht, und der bewegliche Kontakt (13A, 13B) in Entsprechung eine Aussparung (33) aufweist.
  15. Elektrische Vorrichtung nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß die dem beweglichen Kontakt (13A, 13B) zugeordneten elastischen Mittel (28) sich an einer Auflagefläche (49) des Kontakt(e)trägers (12) abstützen, die sich im wesentlichen senkrecht unter dessen Steg (25A, 25B) erstreckt.
  16. Elektrische Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß der Anschlag (29), den der Kontakt(e)träger (12) für den beweglichen Kontakt (13A, 13B) aufweist, gegen die Auflagefläche (49) um den Steg (25A, 25B) winkelmäßig versetzt ist.
  17. Elektrische Vorrichtung nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß der Kontakt(e)träger (12) auf dem Gehäuse (11) drehbar montiert ist.
  18. Elektrische Vorrichtung nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, daß der bewegliche Kontakt (13A, 13B) zum Zusammenwirken mit der Schräge (30) des Kontakt(e)trägers (12) in Querrichtung eine Schulter (40) aufweist.
  19. Elektrische Vorrichtung nach Anspruch 18, dadurch gekennzeichnet, daß sich die Schulter (40) des beweglichen Kontakts (13A, 13B) schräg erstreckt.
  20. Elektrische Vorrichtung nach einem der Ansprüche 18, 19, dadurch gekennzeichnet, daß die Schulter (40) des beweglichen Kontakts (13A, 13B) zu mindestens einem Finger (42) gehört, der seitlich auf der Kante dieses beweglichen Kontakts (13A, 13B) vorsteht.
  21. Elektrische Vorrichtung nach einem der Ansprüche 1 bis 20, dadurch gekennzeichnet, daß, wenn der bewegliche Kontakt (13A, 13B) einen Kontaktbereich (35) zum Zusammenwirken mit dem feststehenden Kontakt (14A, 14B) und einen Mittelbereich (34) aufweist, auf dem die ihm zugeordneten elastischen Mittel (28) aufliegen, dieser Kontaktbereich (35) sich bezüglich seines Drehlagerbereichs (27) auf der anderen Seite des Mittelbereichs (34) erstreckt.
EP96402342A 1995-11-08 1996-11-05 Elektrisches Gerät mit auf einen Kontaktträger montierten beweglichen Kontakten Expired - Lifetime EP0773566B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9513192 1995-11-08
FR9513192A FR2740901B1 (fr) 1995-11-08 1995-11-08 Appareil electrique a contact(s) mobile(s) monte(s) rotatif(s) sur un support de contact(s)

Publications (2)

Publication Number Publication Date
EP0773566A1 EP0773566A1 (de) 1997-05-14
EP0773566B1 true EP0773566B1 (de) 2000-02-16

Family

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Application Number Title Priority Date Filing Date
EP96402342A Expired - Lifetime EP0773566B1 (de) 1995-11-08 1996-11-05 Elektrisches Gerät mit auf einen Kontaktträger montierten beweglichen Kontakten

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Country Link
EP (1) EP0773566B1 (de)
AT (1) ATE189850T1 (de)
DE (1) DE69606683T2 (de)
ES (1) ES2142032T3 (de)
FR (1) FR2740901B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2923940B1 (fr) 2007-11-16 2010-01-01 Schneider Electric Ind Sas Appareil electrique de coupure a contact(s)mobile(s) rotatif(s).
FR2999793A1 (fr) * 2012-12-14 2014-06-20 Schneider Electric Ind Sas Arbre de support des contacts mobiles dans un appareil de coupure du courant electrique, et appareil de coupure de courant le comportant, en particulier un disjoncteur de branchement.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2788421A (en) * 1953-05-12 1957-04-09 Westinghouse Electric Corp Circuit breaker contact structure
FR1524261A (fr) * 1967-03-28 1968-05-10 Fr Landis & Gyr Soc Porte-contacts pour appareils électriques basse tension
FR2686453B1 (fr) * 1992-01-17 1994-04-08 Legrand Interrupteur differentiel.

Also Published As

Publication number Publication date
FR2740901A1 (fr) 1997-05-09
EP0773566A1 (de) 1997-05-14
FR2740901B1 (fr) 1998-01-30
DE69606683T2 (de) 2000-06-08
ATE189850T1 (de) 2000-03-15
DE69606683D1 (de) 2000-03-23
ES2142032T3 (es) 2000-04-01

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