EP0162952B2 - Pont de commutation pour appareils de commutation électriques, notamment pour contacteurs - Google Patents

Pont de commutation pour appareils de commutation électriques, notamment pour contacteurs Download PDF

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Publication number
EP0162952B2
EP0162952B2 EP84112789A EP84112789A EP0162952B2 EP 0162952 B2 EP0162952 B2 EP 0162952B2 EP 84112789 A EP84112789 A EP 84112789A EP 84112789 A EP84112789 A EP 84112789A EP 0162952 B2 EP0162952 B2 EP 0162952B2
Authority
EP
European Patent Office
Prior art keywords
contact
bridge
window
sides
frame
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
EP84112789A
Other languages
German (de)
English (en)
Other versions
EP0162952A1 (fr
EP0162952B1 (fr
Inventor
Helmut Lemmer
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.)
Square D Co Deutschland GmbH
Original Assignee
Square D Co Deutschland 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8191854&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0162952(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Square D Co Deutschland GmbH filed Critical Square D Co Deutschland GmbH
Priority to AT84112789T priority Critical patent/ATE46983T1/de
Priority to ES541266A priority patent/ES8608222A1/es
Priority to CA000477586A priority patent/CA1266074A/fr
Publication of EP0162952A1 publication Critical patent/EP0162952A1/fr
Application granted granted Critical
Publication of EP0162952B1 publication Critical patent/EP0162952B1/fr
Publication of EP0162952B2 publication Critical patent/EP0162952B2/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
    • 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
    • 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
    • H01H1/2025—Bridging contacts comprising two-parallel bridges

Definitions

  • the invention relates to a switching bridge for electrical switching devices, in particular for contactors, with a number of contact bridges which are arranged next to and / or one above the other in windows and which carry contact pieces at their ends and which are each under the pressure of a contact spring, each contact spring as Leaf spring is convex to the associated contact bridge and the contact spring has a locking point in the central area, which interacts positively with the adjacent window wall, and the ends of the contact spring and the ends of the contact bridge are bent so concavely and interact with one another that the contact bridge in Is held in the longitudinal direction by the contact spring and in the transverse direction by the side walls of the window.
  • a switching bridge of the aforementioned type is known from GB-A-417 567.
  • switching bridges are known for example from DE-A-1 909 460 in a wide variety of designs. What these switching bridges have in common, however, is that all the contact springs are designed as spiral springs and are inserted into the respective windows in such a way that they are supported either on the upper or lower wall of the window and on the other hand on the relevant contact bridge.
  • This construction has the disadvantage that only manual manufacture of the switching bridge is possible, i. H. that each contact bridge with the associated spiral contact spring must be inserted by hand into the window in question.
  • Another disadvantage is that the coil spring only presses in the middle on the contact bridge in question and cannot cause the contact bridge to be held.
  • each contact bridge seen in its longitudinal direction, must be provided with projections on both sides or other guide pieces, which usually grip around the edges of the window and in this way keep the contact bridge immovable in its longitudinal direction.
  • a switching bridge for electrical switching devices in which a contact bridge which is movably arranged in a window is under the pressure of a leaf spring bent convexly to the contact bridge, the ends of which are bent concavely.
  • This leaf spring has a latching point in the central region, which interacts positively with a closure piece of the window.
  • the contact bridge is held transversely by the side walls of the window.
  • the purpose of this design is to enable the switching bridge to be replaced if it is provided with bent-up arcing horns.
  • a head is arranged at the upper end of a plunger.
  • the window is formed by a slit, which is worked in, starting from the upper face of the head, so that two side cheeks remain.
  • a locking piece which is attached above the switching bridge, engages in these cheeks.
  • the locking piece is secured by a cylinder piece which is attached to the front end of the head by a bayonet lock. In this way, the bridge can be removed from the slot after loosening the cylinder piece and the closure piece. Automatic assembly of the contact bridges is not possible or intended here.
  • a leaf spring arrangement for the external suspension and mounting of a freely movable contact bridge for electrical switches is known.
  • a movable contact bridge rests on an insulating base and can be moved up and down along a guide bar that is firmly attached to the base.
  • the guide bar extends through a central rectangular opening in the contact bridge.
  • the invention has for its object to provide a switching bridge, which is once an automatic production, d. H. Equipped with contact bridges, in which abrasion is practically avoided and which ensures high contact reliability.
  • the contact spring on both sides of the locking point has a longitudinal slot to the ends, so that resilient arms are formed on both sides of the respective slot that the contact bridge is provided with two longitudinal slots to the ends is that the ge formed four, pairs parallel to each other, each carrying a contact piece, and that the contact bridge between the ends has straight longitudinal edges.
  • each contact bridge can be grasped mechanically together with an overlying leaf spring. With a slight compression of the leaf spring, it can then be easily pushed into the window with the contact bridge without tilting or the like being necessary. If the leaf spring is now released, the locking point of the contact spring engages positively on the adjacent window wall, so that the contact spring and the contact bridge are held securely at the same time.
  • the contact security is significantly increased in that resilient arms are formed on both sides of the longitudinal slots and the contact spring presses at four points on the outer ends of the four arms of the contact bridge.
  • each contact bridge is bent from a resilient, electrically conductive material in the form of a frame, so that a double current-conducting connection between the contact pieces and the frame forms the contact pressure springs, and that the frame on each side of the window has a longitudinal slot to the ends, so that resilient arms are formed on both sides of the respective slot.
  • the contact spring is bent in a C-shape and its ends are each supported on a folded part of the contact bridge, that the contact spring on both sides of the locking point has one each at the ends of the contact spring has extending longitudinal slot, so that resilient arms are formed on both sides of the respective slot, and that the contact bridge on both sides of the window to the ends has longitudinal slots.
  • this design gives the further advantage of a particularly secure mounting and guiding of the contact bridge and, in turn, great contact security.
  • Figures 1 to 3 show a partial section of a switching bridge 1 with a transverse window 2.
  • the switching bridge can have any number of windows one above the other and / or side by side, so that the construction described below is repeated correspondingly often for each window.
  • recesses 3 and 4 are provided on both sides of the window, so that the actual window is provided in the web 5.
  • the remaining edges of the switching bridge, which protrude beyond the web 5, can be designed as reinforcing ribs.
  • a projection 6 is formed on the top of the web 5, which is expediently rectangular, as shown in FIG. 2. This projection engages in an opening 7 of a contact spring 34 and holds it in every operating position, and also in a manner that prevents it from rotating. As illustrated in FIG.
  • the contact spring 34 is designed as a leaf spring bent convexly with respect to the associated contact bridge 20 located underneath.
  • the ends 9 and 10 of the contact or leaf spring 8 on both sides and the ends 12 and 13 of the contact bridge 20 are bent somewhat upwards, ie concavely, according to FIG.
  • the ends are under spring pressure and act in such a way that the contact bridge 20 is held in the longitudinal direction by the contact spring 34.
  • the contact bridge 20 is held in the transverse direction by the side walls of the window 2.
  • the contact bridge 20 has straight longitudinal edges, that is to say essentially consists of a rectangular metal strip with good electrical conductivity. With this arrangement and mounting, the contact bridge practically does not come into frictional contact with the side walls of the window 2 or other side surfaces of the switching bridge 1, so that no abrasion can form.
  • the contact bridge 20 can be solid and has contact pieces 29, 30, 31 and 32 on the underside.
  • the contact spring 34 is provided with two longitudinal slots 18 which run to the ends and which advantageously merge into a rounding 19 on the inside.
  • Resilient arms 16 and 17 are formed on both sides of the slot 18, as can be seen from FIG.
  • This configuration of the contact spring further increases the contact reliability because the contact spring presses on the contact bridge at four points.
  • the contact bridge 20 can also be made somewhat thinner, less material and less weight.
  • the contact bridge 20 is provided with two longitudinal slots 33 which run to the ends, so that a total of four arms 21, 22, 23 and 24 running in pairs parallel to one another are formed on both sides of these longitudinal slots. Each of these arms carries a contact piece 29, 30, 31 and 32. This is a measure which leads to a further improvement in contact security.
  • the concavely bent ends of the contact spring 34 work together with the likewise concavely bent ends 25, 26, 27 and 28 of the above-described arms 21 to 24.
  • the latching point of the contact spring designed as a leaf spring is an opening 7 into which the projection 6 engages.
  • Figures 4 and 5 show a further preferred embodiment of a switching bridge according to the invention.
  • the contact bridge consists of a resiliently elastic or self-resilient material, namely an electrically thin, relatively thin metal strip.
  • the contact bridge is bent in the form of a frame 35, as is particularly clear from FIG. 4. 4, the frame 35 consists of a lower, uninterrupted part 36, on the underside of which the contact pieces 48, 49 and 50, 51 (FIG. 5) are fastened. With rounded corners, this frame part 36 is followed by frame parts 37 and 38 leading upwards, which in turn merge with rounded corners into the upper frame parts 39 and 40 pointing inwards.
  • the frame 35 is thus essentially rectangular, but the frame parts 39 and 40 rise somewhat obliquely inward in the rest position according to the drawn position according to FIG.
  • the contact pieces 48 to 51 are, as indicated, arranged on the outside of the uninterrupted part 36 of the frame, namely towards the ends of this part.
  • the frame can consist of an uninterrupted metal strip, for example by being cut from a tube and then being deformed. For manufacturing reasons, however, it is expedient to punch out the contact bridge from a flat metal strip and then to deform it into an essentially rectangular frame. In this case, it is expedient to bend the ends 41 and 42 of the metal strip in the central region of the window 2 of the switching bridge 1 and to carry out the shaping in such a way that these ends lie close together.
  • the ends 41 and 42 are advantageously provided with a silver layer on the surfaces lying against one another, so that a good current transfer is ensured. Because the contact bridge is designed as a frame 35, there is a double current-conducting connection between the contact pieces 48 and 49 on the one hand and the contact pieces 50 and 51 on the other hand.
  • the self-resilient or resilient material is selected so that the frame 35 forms the contact pressure springs at the same time.
  • the ends 41 and 42 of the frame parts 39 and 40 are inward, i. H. bent downward in FIG. 4 essentially by 90 °.
  • a recess 43, z. B. in a rectangular shape.
  • a projection 6 engages in these two cutouts, which, as shown, projects into the window 2.
  • the frame 35 is provided with slots 46 and 47 in the areas on both sides of the window 2, and the four contact pieces 48 to 51 described are accordingly attached.
  • Figure 5 also shows that on both sides of the window 2 slightly inclined outwardly rising contact surfaces 52 and 53 are formed on the switching bridge 1.
  • the frame parts 39 and 40 can be supported on these contact surfaces 52 and 53.
  • the frame parts 39 and 40 lead between the rest position and the operating position a certain pivoting movement, as a comparison of the drawn drawn position with the operating position shows.
  • the bent ends 41 and 42 perform a certain rolling movement with respect to one another, so that a self-cleaning effect occurs on the abutting surfaces described and a good current transfer is always guaranteed.
  • the contact spring 67 is bent in a C-shape.
  • the inwardly facing ends 68 and 69 of the contact spring 67 are each supported on a folded part 77 and 79 or 78 of the contact bridge 75.
  • the contact bridge 75 again carries contact pieces 71, 72, 73 and 74 on the underside.
  • both the contact spring 67 and the contact bridge 75 have longitudinal slots 70 and 76 (FIG. 7).

Landscapes

  • Push-Button Switches (AREA)
  • Tumbler Switches (AREA)
  • Contacts (AREA)

Claims (10)

1. Pont de commutation pour appareils électriques de commutation, en particulier pour des contacteurs, comprenant un certain nombre de ponts de contact (20) disposés de façon mobile les uns à côté et/ou au-dessus des autres dans des fenêtres (2), portant à leurs extrémités (25 à 28) des pièces de contact (29 à 32) et supportant chacun la pression d'un ressort (34) de contact, pont dans lequel chaque ressort (34) est constitué par une lame de ressort, cintrée avec une forme convexe par rapport au pont de contact correspondant (20) ; le ressort (34) de contact présente, dans sa région médiane, un moyen d'encliquetage (7) qui coopère, par conjugaison de formes avec la paroi de fenêtre voisine ; et dans lequel les extrémités (9, 10) du ressort (34) de contact et les extrémités (25 à 28) du pont de contact (20) sont courbées avec une forme concave et coopèrent ensemble de telle façon que le pont de contact (20) est maintenu, dans la direction longitudinale, par le ressort de contact (34) et, dans le sens transversal, par les parois latérales de la fenêtre (2) ; caractérisé en ce que le ressort de contact (34) présente chaque fois, de part et d'autre, du moyen d'encliquetage (7), une fente longitudinale (18) allant jusqu'aux extrémités (9, 10), de sorte que des bras flexibles (16, 17) sont formés de part et d'autre de chaque fente (18), en ce que le pont de contact (20) présente deux fentes longitudinales (33) dirigées vers les extrémités, en ce que chacun des quatre bras (21 à 24) ainsi formés, parallèles entre eux par paires, porte une pièce de contact (29 à 32), et en ce que le pont de contact (20) présente des bords longitudinaux rectilignes entre ses extrémités (25 à 28).
2. Pont de commutation selon la revendication 1, caractérisé en ce que le moyen d'encliquetage est constitué d'une ouverture dans laquelle s'insère une saillie (6) avançant dans la fenêtre (2).
3. Pont de commutation pour appareils électriques de commutation, en particulier pour des contacteurs, comprenant un certain nombre de ponts de contact (35) disposés avec mobilité les uns à côté et/ou au-dessus des autres dans des fenêtres (2), lesquels portent, aux extrémités d'une partie (36) ininterrompue, des pièces de contact (48 à 51) et supportent chacun la pression d'un ressort de contact, caractérisé en ce que chaque pont de contact en matériau élastiquement flexible, et conducteur électrique est courbé en formant un cadre (35), de sorte qu'une jonction double (36 ; 39 à 42) conduisant le courant est établie entre les pièces de contact (48 à 51), que le cadre (35) forme les ressorts de pression de contact, et en ce que le cadre (35) présente chaque fois, de part et d'autre de la fenêtre (2), une fente longitudinale (46 à 47) allant jusqu'aux extrémités, de sorte que des bras flexibles sont formés de part et d'autre de chaque fente (46, 47).
4. Pont de commutation selon la revendication 3, caractérisé en ce que le cadre (35) est formé par une bande de métal bon conducteur électrique, dont les extrémités (41,42) sont recourbées dans la région médiane de la fenêtre (2) et s'appliquent étroitement l'une contre l'autre.
5. Pont de commutation selon la revendication 4, caractérisé en ce que les extrémités (41,42) sont revêtues d'une couche d'argent sur les surfaces appliquées l'une contre l'autre.
6. Pont de commutation selon la revendication 4 ou 5, caractérisé en ce que les extrémités (41, 42) sont recourbées vers l'intérieur et présentent chacune un évidement (43) dans lequel s'insère une saillie (6) entrant dans la fenêtre (2).
7. Pont de commutation selon la revendication 4 ou 5, caractérisé en ce que les extrémités (41, 42) sont recourbées vers l'extérieur et s'insèrent dans un évidement de la paroi voisine de la fenêtre.
8. Pont de commutation selon l'une des revendications 4 à 7, caractérisé en ce que le cadre (35) est sensiblement rectangulaire et que les pièces de contact (48 à 51) sont disposées sur le côté extérieur de la partie ininterrompue (36) du cadre (35).
9. Pont de commutation selon l'une des revendications 3 à 8, caractérisé en ce qu'il est prévu, de part et d'autre de la fenêtre (2), des surfaces d'appui (52, 53) pour une partie (39,40) du cadre (35) en position de service (54).
10. Pont de commutation pour appareils électriques de commutation, en particulier pour des contacteurs, comprenant un certain nombre de ponts de contact (75) disposés dans des fenêtres (2) de façon mobile les uns à côté et/ou au-dessus des autres portant à leurs extrémités des pièces de contact (71 à 74) et supportant chacun la pression d'un ressort de contact (67), caractérisé en ce que le ressort de contact (67) est courbé en forme de C et que ses extrémités s'appuient (68, 69) chacune contre une partie pliée (77, 78, 79) du pont de contact (75) en ce que le ressort de contact (67) comporte, chaque fois, de part et d'autre d'un moyen d'encliquetage (63, 64), une fente longitudinale (70, 76) allant jusqu'aux extrémités (68, 69) du ressort de contact (67), de sorte que des bras flexibles sont formés de part et d'autre de chaque fente (70, 76), et en ce que le pont de contact (75) comporte, de part et d'autre de la fenêtre (2), des fentes longitudinales (70, 76) allant jusqu'aux extrémités.
EP84112789A 1984-03-31 1984-10-24 Pont de commutation pour appareils de commutation électriques, notamment pour contacteurs Expired - Lifetime EP0162952B2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT84112789T ATE46983T1 (de) 1984-03-31 1984-10-24 Schaltbruecke fuer elektrische schaltgeraete, insbesondere fuer schuetze.
ES541266A ES8608222A1 (es) 1984-03-31 1985-03-14 Puente de conmutacion para aparatos electricos de conmuta- cion, especialmente para contactores
CA000477586A CA1266074A (fr) 1984-03-31 1985-03-27 Montage en pont pour commutateur electrique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP84103593 1984-03-31
EP84103593 1984-03-31

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP88104209.7 Division-Into 1988-03-17

Publications (3)

Publication Number Publication Date
EP0162952A1 EP0162952A1 (fr) 1985-12-04
EP0162952B1 EP0162952B1 (fr) 1989-10-04
EP0162952B2 true EP0162952B2 (fr) 1992-12-23

Family

ID=8191854

Family Applications (2)

Application Number Title Priority Date Filing Date
EP84112789A Expired - Lifetime EP0162952B2 (fr) 1984-03-31 1984-10-24 Pont de commutation pour appareils de commutation électriques, notamment pour contacteurs
EP88104209A Expired - Lifetime EP0304539B1 (fr) 1984-03-31 1984-10-24 Pont de commutation pour appareils de commutation électriques, notamment pour contacteurs

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP88104209A Expired - Lifetime EP0304539B1 (fr) 1984-03-31 1984-10-24 Pont de commutation pour appareils de commutation électriques, notamment pour contacteurs

Country Status (3)

Country Link
US (1) US4594484A (fr)
EP (2) EP0162952B2 (fr)
DE (2) DE3486065D1 (fr)

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US5265904A (en) * 1993-01-07 1993-11-30 Ford Motor Company Airbag cover with integral horn switch
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RU2149474C1 (ru) * 1998-11-10 2000-05-20 Закрытое акционерное общество "ЗЭТА" Подвижный контактный узел электрического аппарата
US6180899B1 (en) * 1999-01-04 2001-01-30 Siemens Energy & Automation, Inc. Semi-bifurcated electrical contacts
SE516457C2 (sv) 1999-01-28 2002-01-15 Asea Brown Boveri Brytare i kontaktor
US6958671B2 (en) * 2001-11-15 2005-10-25 Square D Company Electrical contactor with positive temperature coefficient resistivity element
EP1577919B1 (fr) * 2004-03-15 2014-09-10 Omron Corporation Relais électromagnétique
CN1321430C (zh) * 2006-03-06 2007-06-13 通领科技集团有限公司 具有压力平衡自动补偿的接地故障断路器动作机构
CN102067402A (zh) 2008-07-07 2011-05-18 立维腾制造有限公司 一种故障电路断路器
DE102010043352A1 (de) * 2010-11-03 2012-05-03 Tyco Electronics Amp Gmbh Kontaktanordnung für ein Relais mit zwei Laststrompfaden und Relais mit Kontaktanordnung
DE102010063172A1 (de) * 2010-12-15 2012-06-21 Tyco Electronics Amp Gmbh Kontaktanordnung für ein Relais mit zwei Laststrompfaden und einem Querstrompfad und Relais mit Kontaktanordnung
DE102011008834A1 (de) * 2011-01-19 2012-07-19 Abb Ag Installationsschaltgerät
DE102015212818A1 (de) 2015-07-08 2017-01-12 Te Connectivity Germany Gmbh Kontaktbrückenanordnung für ein elektrisches Schaltelement
DE102015212817A1 (de) 2015-07-08 2017-01-12 Te Connectivity Germany Gmbh Kontaktbrückenanordnung für ein elektrisches Schaltelement
CN107331581A (zh) * 2017-08-25 2017-11-07 戴丁志 减震定位式接触器
DE112021007255A5 (de) * 2021-03-11 2023-12-28 Pierburg Gmbh Kontaktbrückenvorrichtung für einen schalter eines hochvoltschützes oder hochvoltrelais
DE112021007249A5 (de) * 2021-03-11 2023-12-28 Pierburg Gmbh Kontaktbrückenvorrichtung für einen schalter eines hochvoltschützes oder hochvoltrelais
CN115621055A (zh) 2021-07-15 2023-01-17 霍尼韦尔国际公司 包括集成的可移动载体组件的开关部件
CN119626847A (zh) * 2023-09-14 2025-03-14 厦门宏发电力电器有限公司 继电器
CN119626851A (zh) * 2023-09-14 2025-03-14 厦门宏发电力电器有限公司 继电器

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Also Published As

Publication number Publication date
US4594484A (en) 1986-06-10
EP0304539B1 (fr) 1993-02-03
EP0162952A1 (fr) 1985-12-04
EP0304539A1 (fr) 1989-03-01
DE3480038D1 (en) 1989-11-09
EP0162952B1 (fr) 1989-10-04
DE3486065D1 (de) 1993-03-18

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