EP0773572A1 - Elektrisches Gerät mit Schnappeinschaltung - Google Patents

Elektrisches Gerät mit Schnappeinschaltung Download PDF

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Publication number
EP0773572A1
EP0773572A1 EP96402352A EP96402352A EP0773572A1 EP 0773572 A1 EP0773572 A1 EP 0773572A1 EP 96402352 A EP96402352 A EP 96402352A EP 96402352 A EP96402352 A EP 96402352A EP 0773572 A1 EP0773572 A1 EP 0773572A1
Authority
EP
European Patent Office
Prior art keywords
retaining member
contact
housing
contact 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.)
Granted
Application number
EP96402352A
Other languages
English (en)
French (fr)
Other versions
EP0773572B1 (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
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 Legrand SA, Legrand SNC filed Critical Legrand SA
Publication of EP0773572A1 publication Critical patent/EP0773572A1/de
Application granted granted Critical
Publication of EP0773572B1 publication Critical patent/EP0773572B1/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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/504—Manual reset mechanisms which may be also used for manual release provided with anti-rebound means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms
    • H01H2300/048—Snap closing by latched movable contact, wherein the movable contact is held in a minimal distance from the fixed contact during first phase of closing sequence in which a closing spring is charged

Definitions

  • the present invention relates generally to electrical devices of the kind comprising, in a housing, a contact support (s) on which is movably mounted at least one movable contact, and which, generally disposed facing at least one fixed contact, is itself mounted mobile in the housing between an open position, for which the mobile contact is at a distance from the fixed contact, and a closed position, for which the mobile contact is on the contrary applied to this fixed contact , with, associated with the mobile contact, elastic means which, bearing on the contact support (s) urge it permanently towards a stop provided for it on this contact support (s).
  • this electrical device 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 electrical appliance is engaged in the closed position in a gradual manner.
  • the movable contact can then be the object of bonding on the fixed contact.
  • a retaining member mounted movably in the housing, between a deployed position, for which, interfering with a shoulder on the path of the movable contact, it is able to temporarily retain it, and a retracted position, for which it is able to release this movable contact, with, on the one hand, associated with this retaining member, elastic means, which permanently urge it towards its position deployed, and, on the other hand, acting between the contact support (s) and this retaining member, cam means from which it follows that, when it passes from its open position to its closed position, said contact support (s) causes itself the passage of said retaining member from its deployed position to its retracted position.
  • the movable contact is temporarily retained at a distance from the fixed contact, with progressive compression of the elastic means associated with it.
  • the retaining member is rotatably mounted in the housing.
  • the present invention generally relates to a provision making it possible, very simply, to avoid this drawback and also leading to other advantages.
  • an electrical appliance of the kind comprising, in a housing, a contact support (s) on which is movably mounted at least one movable contact, and which, generally disposed facing at least one fixed contact, is itself mounted mobile in the housing between an open position, for which the mobile contact is at a distance from the fixed contact, and a closed position, for which the mobile contact is on the contrary applied to the fixed contact, with, associated with the movable contact, elastic means which, bearing on the contact support (s), urge this movable contact permanently towards a stop provided for it on the contact support (s), and a retaining member, which is also movably mounted in the housing, between a deployed position, for which, interfering with a shoulder on the path of the movable contact, it is able to temporarily retain the latter, and a retracted position, for the which it is capable of releasing this movable contact, with, on the one hand, associated with this retaining member, elastic means which permanently urge it in the direction of its deployed position, and, on
  • this arrangement makes it possible to involve the retaining member on the same side of the movable contact as the zone by which the latter is able to bear on the fixed contact, and thereby to control with very great precision the momentary stop position of the movable contact relative to the fixed contact before its release.
  • this retaining member may advantageously be fitted or not on request, by simply being added, or not, to this electrical appliance during its mounting.
  • this electrical appliance 10 comprises, in a housing 11, a contact support (s) 12 on which is movably mounted at least one movable contact 13A, 13B, and which , generally arranged opposite at least one fixed contact 14A, 14B, is itself mounted movably in the housing 11 between an open position, FIG. 3, for which the movable contact 13A is at a distance from the fixed contact 14A, and a closed position, FIG.
  • the housing 11 is formed by a base 18, which, in the form of a box body, constitutes the lower part, and a cover 19, which, adapted to cooperate in interlocking with the base 18, constitutes the upper part.
  • the contact support (s) 12 is rotatably mounted in the housing 11, and, more precisely, in the base 18 thereof.
  • the contact support (s) 12 is permanently biased towards its open position by elastic means 28, which, in this case, consist of a simple compression spring of the coil spring type.
  • two fixed contacts 14A, 14B are provided side by side in the housing 11, and, more precisely, in the base 18 thereof, each belonging respectively to two input terminals 31A, 31B.
  • the contact support (s) 12 therefore carries, in correspondence, two movable contacts 13A, 13B, which, by flexible electrical conductors, in this case braids, not shown, are each respectively in electrical connection with two output terminals 32A, 32B, via a differential transformer 33.
  • the two movable contacts 13A, 13B are rotatably mounted on the contact support (s) 12 and they are identical to each other.
  • the contact support (s) 12 has, in alignment with one another, and parallel to its axis of rotation A, two cross members 35A, 35B.
  • journal portion 36 which forms one of the end portions, and which is generally V-shaped
  • the movable contacts 13A, 13B are hooked on the corresponding cross-member 35A, 35B, however, by a portion of contact 38, which forms the other of the end portions, and which projects a contact grain 39, they are adapted to cooperate with the fixed contact 14A, 14B with which they are associated.
  • the movable contacts 13A, 13B comprise a middle portion 40, on which bear the elastic means 15 associated with them.
  • these elastic means 15 consist of a compression spring, in this case a coil spring, which bears on a surface 41 of the contact support (s) 12.
  • the stop 16 it intervenes beyond the movable contacts 13A, 13B relative to the range 41, between these movable contacts 13A, 13B and the fixed contacts 14A, 14B, and the movable contacts 13A, 13B are capable of carrying on it by fingers which they laterally project for this purpose.
  • the electrical device 10 also comprises a retaining member 44, which is also mounted movably in the housing 11, and, more precisely, in the base 18 thereof, between a deployed position, Figures 3 and 6A, for which, interfering with shoulders 45A, 45B on the path of the movable contacts 13A, 13B, it is able to retain temporarily these, as shown in Figures 6A and 6B, and a retracted position, Figure 7, for which it is able to release the movable contacts 13A, 13B, with, on the one hand, associated with this retaining member 44, elastic means 46, which permanently urge it in the direction of its deployed position, and, on the other hand, acting between the contact support (s) 12 and this retaining member 44, cam means, described more in detail later, from which it follows that, when it passes from its open position to its closed position, the contact support (s) 12 causes the retaining member 44 to pass from its position deployed in its retracted position.
  • a retaining member 44 which is also mounted movably in the housing 11, and, more
  • the retaining member 44 is a slide.
  • the retaining member 44 is mounted movable parallel to the main faces 20 of the housing 11 and perpendicular to the rear face 21, for fixing, of the latter.
  • D its direction of movement, as shown schematically in broken lines in FIG. 3, and as identified by its trace in FIG. 5.
  • This direction of movement D is orthogonal to the axis of rotation A of the contact support (s) 12.
  • the retaining member 44 has a plane of symmetry S, which is itself perpendicular to the axis of rotation A of the contact support (s) 12.
  • This plane of symmetry S is shown diagrammatically in broken lines by its trace in FIG. 5.
  • the two shoulders 45A, 45B that the retaining member 44 includes for the temporary retention of the movable contacts 13A, 13B extend on either side of a central body 47 which cooperates with the contact support ( s) 12 for the formation of the cam means intervening between it and the latter.
  • these shoulders 45A, 45B extend parallel to the direction of movement D.
  • brackets 48A, 48B are formed by the edge of brackets 48A, 48B that the retaining member 44 has in cantilever.
  • consoles 48A, 48B are elongated parallel to the plane of symmetry S, and they protrude on two lower wings 49A, 49B, which, themselves protruding from the central body 47, at the base thereof, they extend perpendicular to this plane of symmetry S.
  • brackets 48A, 48B are coplanar with each other, and the same is true of the lower wings 49A, 49B.
  • the lower wings 49A, 49B are each respectively surmounted by upper wings 50A, 50B which, of less development, are also substantially coplanar with them.
  • these guide means concern, in particular, the central body 47 of the retaining member 44.
  • the housing 11, and, more precisely, the base 18 thereof, has, internally, two walls 52A, 52B, which frame this central body 47 and between which it struggles.
  • the central body 47 comprises, at a distance from the lower wings 49A, 49B and the upper wings 50A, 50B, a T extension 53, and the walls 52A, 52B of the housing 11 comprise, in projection, at a distance from each other, two ribs 54 which frame the crosspiece of this T extension 53.
  • the walls 52A, 52B of the housing 11 extend to the lower wings 49A, 49B and upper 50A, 50B of the retaining member 44, on a first side thereof, however, from the other side of these lower wings 49A, 49B and upper 50A, 50B, the housing 11, and, more precisely, the base 18 thereof, has, internally, along the plane of symmetry S of the retaining member 44, another wall 55 with which the retaining member 44 is engaged by a groove 56 .
  • the guide means acting between the retaining member 44 and the housing 11 also concern the lower wings 49A, 49B and upper 50A, 50B of this retaining member 44.
  • the housing 11, and, more precisely, the base 18 thereof, comprises, internally, partitions which form grooves 57A, 57B between which these lower wings 49A, 49B and upper 50A, 50B circulate.
  • the guide means acting between the retaining member 44 and the housing 11 also include in the housing 11, and, more precisely in the base 18 thereof. , bearing walls 58A, 58B, which, parallel to the shoulders 45A, 45B of this retaining member 44, abut these shoulders 45A, 45B, at the rear thereof.
  • bearing walls 58A, 58B are substantially coplanar with each other, and they extend perpendicular to the plane of symmetry S of the retaining member 44.
  • the retaining member 44 bears against them by the edge of tongues 60A, 60B which, projecting from its lower wings 49A, 49B, on the side thereof opposite the brackets 48A, 48B, extend parallel to its plane of symmetry S, and, therefore, parallel to its direction of displacement D.
  • the cam means also acting between the contact support (s) 12 and the retaining member 44 comprise, on the contact support (s) 12, a spout 62, and, in correspondence with this spout 62, on the retaining member 44, a ramp 63, which interferes with the path of the spout 62 during the passage of the contact support (s) 12 from its open position to its closed position, and which s 'oblique to direction movement D of the retaining member 44.
  • the spout 62 of the contact support (s) 12 is rounded.
  • the housing 11, and, more precisely, the base 18 thereof, includes a stop 65.
  • this stop 65 extends at a distance from the rear face 21, for fixing, from the housing 11, parallel to this rear face 21.
  • the retaining member 44 comprises, in the embodiment shown, at least one elastically deformable hook 66, with transverse latching catch 67 and oblique engagement ramp 68, which, during mounting, allows it to snap into place.
  • the elastic means 46 associated with the retaining member 44 are formed by a spring separate therefrom.
  • a compression spring of the coil spring type, which bears on the wall 69 of the base 18 of the housing 11 forming the rear face 21 thereof.
  • the retaining member 44 has, projecting from the underside of its central body 47, a lug 70.
  • the spring constituting the elastic means 46 is attached to the retaining member 44, and, as previously indicated, the latter is snapped, by its elastically deformable hooks 66, into the base 18 of the housing 11.
  • the contact support (s) 12 moves from its open position to its closed position, as shown diagrammatically by an arrow F1 in FIGS. 3, 6A and 6B, the movable contacts 13A, 13B carried by contact support (s) 12 come to bear by the free end of their contact portion 38 against the shoulders 45A, 45B of the retaining member 44.
  • the movable contacts 13A, 13B are therefore stopped and kept at a distance from the fixed contacts 14A, 14B, while the contact support (s) 12 continues to move.
  • the retaining member 44 intervenes, according to a characteristic of the invention, on the same side of the movable contacts 13A, 13B as the zone by which these are able to bear on the fixed contacts 14A, 14B.
  • the retaining member intervenes on the same side of the pivot axis of these mobile contacts 13A, 13B as the area in question.
  • the elastic means 46 are formed by a spring in one piece with the retaining member 44, the assembly forming by molding a simple and same part.
  • this spring forms a zigzag extension of the retaining member 44.
  • a positioning rod 71 which, initially of in one piece with the retaining member 44, the assembly forming by molding one and the same piece, is breakable, and is eliminated, by rupture, once the snap-fastening of this retaining member 44 is ensured in the housing 11.
  • the field of application of the invention is not limited to that of the only differential switch more particularly described and shown, but extends on the contrary as well to any electrical device comprising a contact support (s) mobile on which is itself movably mounted at least one movable contact.

Landscapes

  • Massaging Devices (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Telephone Function (AREA)
  • Push-Button Switches (AREA)
  • Dry Shavers And Clippers (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Surgical Instruments (AREA)
  • Motor Or Generator Frames (AREA)
  • Slide Switches (AREA)
  • Brushes (AREA)
EP96402352A 1995-11-08 1996-11-06 Elektrisches Gerät mit Schnappeinschaltung Expired - Lifetime EP0773572B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9513193 1995-11-08
FR9513193A FR2740900B1 (fr) 1995-11-08 1995-11-08 Appareil electrique a enclenchement brusque

Publications (2)

Publication Number Publication Date
EP0773572A1 true EP0773572A1 (de) 1997-05-14
EP0773572B1 EP0773572B1 (de) 2001-10-17

Family

ID=9484341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96402352A Expired - Lifetime EP0773572B1 (de) 1995-11-08 1996-11-06 Elektrisches Gerät mit Schnappeinschaltung

Country Status (7)

Country Link
EP (1) EP0773572B1 (de)
CN (1) CN1097274C (de)
AT (1) ATE207238T1 (de)
BR (1) BR9604519A (de)
DE (1) DE69615981T2 (de)
ES (1) ES2161995T3 (de)
FR (1) FR2740900B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1261008A1 (de) * 2001-05-22 2002-11-27 Gewiss S.P.A. Gekapselter thermomagnetischer Schutzschalter
EP1278225A1 (de) * 2001-07-16 2003-01-22 Hager Electro S.A. Schnelleinschaltvorrichtung
ITMI20131034A1 (it) * 2013-06-21 2014-12-22 Gewiss Spa Dispositivo di chiusura dei contatti di un interruttore

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT505093B1 (de) * 2004-01-19 2013-02-15 Moeller Gebaeudeautomation Kg Elektromechanischer schalter
CN102237208A (zh) * 2010-05-03 2011-11-09 Abb股份公司 电气安装开关设备
DE102010019033B4 (de) * 2010-05-03 2012-02-23 Abb Ag Elektrisches Installationsschaltgerät
CN108321014B (zh) * 2018-02-07 2024-03-08 佛山市顺德区汇控电器制造有限公司 一种双保险的防复位温控器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE656585C (de) * 1933-07-05 1938-02-09 Stotz Kontakt Gmbh Vorrichtung zur Momenteinschaltung von elektrischen Selbstschaltern
DE4016364A1 (de) * 1989-06-30 1991-01-03 Siemens Ag Leitungsschutzschalter mit momenteinschaltung
FR2686453A1 (fr) 1992-01-17 1993-07-23 Legrand Sa Interrupteur differentiel.
FR2717617A1 (fr) 1994-03-15 1995-09-22 Hager Electro Perfectionnement aux interrupteurs différentiels.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE656585C (de) * 1933-07-05 1938-02-09 Stotz Kontakt Gmbh Vorrichtung zur Momenteinschaltung von elektrischen Selbstschaltern
DE4016364A1 (de) * 1989-06-30 1991-01-03 Siemens Ag Leitungsschutzschalter mit momenteinschaltung
FR2686453A1 (fr) 1992-01-17 1993-07-23 Legrand Sa Interrupteur differentiel.
FR2717617A1 (fr) 1994-03-15 1995-09-22 Hager Electro Perfectionnement aux interrupteurs différentiels.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1261008A1 (de) * 2001-05-22 2002-11-27 Gewiss S.P.A. Gekapselter thermomagnetischer Schutzschalter
EP1278225A1 (de) * 2001-07-16 2003-01-22 Hager Electro S.A. Schnelleinschaltvorrichtung
ITMI20131034A1 (it) * 2013-06-21 2014-12-22 Gewiss Spa Dispositivo di chiusura dei contatti di un interruttore
CN104241052A (zh) * 2013-06-21 2014-12-24 哥维斯股份公司 用于开关的触头闭合设备
EP2816577A1 (de) * 2013-06-21 2014-12-24 GEWISS S.p.A. Kontaktschließvorrichtung für einen Schalter
CN104241052B (zh) * 2013-06-21 2017-11-28 哥维斯股份公司 用于开关的触头闭合设备

Also Published As

Publication number Publication date
CN1161553A (zh) 1997-10-08
DE69615981T2 (de) 2002-04-04
EP0773572B1 (de) 2001-10-17
BR9604519A (pt) 1998-06-23
ATE207238T1 (de) 2001-11-15
DE69615981D1 (de) 2001-11-22
ES2161995T3 (es) 2001-12-16
FR2740900A1 (fr) 1997-05-09
FR2740900B1 (fr) 1998-01-09
CN1097274C (zh) 2002-12-25

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