EP1903586A1 - Commutateur électrique doté d'au moins une paire d'éléments de contact - Google Patents

Commutateur électrique doté d'au moins une paire d'éléments de contact Download PDF

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Publication number
EP1903586A1
EP1903586A1 EP07016226A EP07016226A EP1903586A1 EP 1903586 A1 EP1903586 A1 EP 1903586A1 EP 07016226 A EP07016226 A EP 07016226A EP 07016226 A EP07016226 A EP 07016226A EP 1903586 A1 EP1903586 A1 EP 1903586A1
Authority
EP
European Patent Office
Prior art keywords
contact
contact carrier
actuator
switching device
electrical switching
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.)
Withdrawn
Application number
EP07016226A
Other languages
German (de)
English (en)
Inventor
Richard Dipl.-Ing. Kommert
Rüdiger Dipl.-Ing. Schweitzer
Anke Dietzel
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.)
ABB AG Germany
Original Assignee
ABB Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP1903586A1 publication Critical patent/EP1903586A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/045—Energy stored by deformation of elastic members making use of cooperating spring loaded wedging or camming parts between operating member and contact structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/12—Movable parts; Contacts mounted thereon
    • H01H23/16—Driving mechanisms
    • H01H23/20—Driving mechanisms having snap action
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs

Definitions

  • the invention relates to an electrical switching device having at least one contact point, in which the contact point is opened in a first position and the contact point is closed in a second position, with a pivotable contact carrier on which the at least one movable contact piece is held, and with an actuator for Drive of the contact carrier, according to the preamble of claim 1.
  • the invention accordingly relates to all switches with two switching states, in particular thermal relay, micro-switch and auxiliary switch.
  • a bimetallic strip is provided, the free, bending ends acting on a slide, with a double-armed lever is operated, which acts via a further slider on a cantilevered leaf spring, at the free end of a leg of a U-shaped snap spring is articulated, whose other leg acts on a contact leaf spring.
  • the contact leaf spring has at its free end a movable contact piece, which forms a contact point with a fixed contact piece. In a first position, the contact point is closed and upon displacement of the second slider, the leaf spring is bent until the point of articulation of the snap spring arrives in its dead center position; on further displacement of the second slider snaps the snap spring and opens the contact point. Similar arrangements are in a large number of variants with other snap-action switch elements.
  • the actuator is a rotatable about a first axis of rotation pivot member, which is constructed of two mutually displaceable guided resiliently pressed apart sub-elements, of which the first sub-element is rotatably mounted and the second sub-element cooperates at its free end with the contact carrier.
  • a toggle switch with a contact bar as a contact carrier for a movable contact piece is from the DE 43 24 206 C2 known. He has a contact piece, which is actuated by a plunger. On the switching piece is a switching roller which slides on a wedge piece, which is secured to one end of the contact bar with the movable contact piece, which is mounted at its other end in a cutting bearing. By operating the switching piece, the shift drum slides on the wedge piece and moves the wedge piece from a first stable position via a dead center position into a second stable position and back.
  • a similar embodiment of a switch here a steering column switch, is from the DE 36 26 241 known.
  • the axis of rotation of the actuator and the contact carrier may lie on a line which extends in a dead center position perpendicular to the longitudinal extent of the contact carrier, so that upon pivoting of the actuator from a first stable position on the dead center, in which the actuator aligned with the line, is spent in a second stable position, and back.
  • the contact carrier may be formed as a one-armed or double-arm contact carrier. The mode of operation is then such that, for example, in a closed position, the central axis of the actuator extends at an acute angle to the longitudinal extension of the contact carrier.
  • the tip or the free operating end of the actuator reaches the dead center position, in which the longitudinal extent of the actuator is aligned with the connecting line of the axis of rotation of the contact carrier and the actuator; as soon as the actuator is further pivoted, it reaches its second stable position, in which the at least one contact point is opened, whereby the spring relaxes between the subelements.
  • This mode of action is given when the contact carrier is a single-arm or a double-arm, at the free ends of each at least one contact point is arranged. In this case, one contact point would be closed and the other one would be open, and upon pivoting of the actuator, the other contact point would be closed and the first contact point would be opened.
  • the at least one contact point is designed as a double contact point, which has fixed contacts, which can be closed or opened via a contact carrier attached to the contact bridge with two movable contact pieces.
  • the free end of the actuator may be provided with a roller, whereby frictional forces are reduced.
  • a further advantageous embodiment of the invention can be made that a roof-shaped elevation or a roof-shaped projection is provided on the contact carrier, so that here a precisely defined transition point is generated. This is the Peak of the elevation in the connecting line between the pivot point of the actuator and the pivot point of the contact carrier.
  • the contact carrier is formed of electrically non-conductive material, which may only have a metallic plate on the sliding surface or rolling surface on which slides the actuator in the switching operations.
  • the contact carrier is formed of electrically non-conductive material, and is reinforced by a metal plate in the region of the cutting bearing, which forms the axis of rotation of the contact carrier. This increases the life of the cutting bearing.
  • FIG. 1 shows a switching device with a one-armed contact carrier 10, which is rotatably mounted in the region of its one end on a rotation axis 11.
  • a projection 12 is provided on the contact carrier 10 L-shaped, in which a contact bridge 13 is received with two movable contact pieces 14 and 15, wherein a contact pressure spring 16 is provided.
  • the execution of the recording of the contact bridge 13 within the projection 12 is known per se, so that further explanations are not to make this.
  • the contact carrier 10 projects beyond the axis of rotation in the opposite direction to the projection with an extension 17th
  • an actuator 22 is provided, which is rotatably mounted about a rotation axis 23.
  • the actuator 22 has a first sub-element 24, and on this first sub-element 24, the rotation axis 23 is provided.
  • He further has a second sub-element 25 which engages in a receiving opening 26 of the first sub-element 24; the free end of the second sub-element 25 is provided with a pin 27 which slides on the contact surfaces opposite surface 28 of the contact carrier.
  • a compression spring 29 is provided between the two sub-elements 24 and 25, a compression spring 29 is provided.
  • the central axis of the axis of rotation 11 and the axis of rotation 23 lie on a line perpendicular to the upper surface 28 extending line.
  • Fig. 2 shows a further embodiment of the invention.
  • the contact carrier 31 is formed as a double arm, wherein the first arm 32 has an L-shaped extension 33 and the second arm 34 has an L-shaped extension 35, so that with the two L-shaped projections 33 and 35, a U-shape is formed , At the ends of the extensions or projections 33, 35 each have a contact bridge 36, 37 are mounted, wherein each a contact pressure spring 38 and 39 is provided.
  • a cutting bearing 40 is provided, which is located on the the actuator 41 opposite side of the contact carrier is located.
  • the actuator 41 and the cutting bearing 40 are respectively provided on opposite sides of the contact carrier 31.
  • the actuator 41 is here also rotatably supported by a cutting bearing 42; the operation is as such the same as in the embodiment of FIG. 1.
  • the contact carrier 31 is mounted on the cutting bearing 40; the actuator 43 is rotatably mounted on a rotation axis 44 which corresponds to the rotation axis 23.
  • a roller 45 is provided which rolls on the contact carrier 31; Compared to the embodiments according to Figures 1 and 2, in which the pin 27 slides, the applied frictional force is reduced.
  • the embodiment according to FIG. 5 shows a contact carrier 50, which is designed similarly to the contact carrier 31; the only difference is that the contact carrier 50 is rotatably mounted on a central rotating shaft 51.
  • a roof-shaped projection 54 is provided on the upper side 52 of the contact carrier 53 facing the actuator, the point 55 of which is located on the connecting line between the axis of rotation 44 of the actuator 43 and the cutting bearing 40.
  • the roller 45 is provided at the end of the pin 27; this role slides on one side of the roof-shaped extension 54 and as soon as the roller 45 has exceeded the roof edge 55, the contact carrier 53 rotates clockwise, so that the left in the drawing located contact bridge and the right in the drawing located contact bridge suddenly closed become.
  • the contact carrier 31, 53 in the region of the cutting bearing 40 which forms the axis of rotation of the contact carrier 31, 53, by a metal plate (not shown) to be reinforced.
  • the contact carrier 31, 53 are also made of a softer and thus cheaper plastic material. The expected in such materials wear in the region of the cutting bearing 40 is counteracted by reinforcing only this small, local area by a metal plate.
  • the injection of a metal plate in a plastic part is a known and cheap to carry out manufacturing step.

Landscapes

  • Contacts (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Thermally Actuated Switches (AREA)
EP07016226A 2006-09-20 2007-08-18 Commutateur électrique doté d'au moins une paire d'éléments de contact Withdrawn EP1903586A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006044055A DE102006044055B4 (de) 2006-09-20 2006-09-20 Elektrisches Schaltgerät mit wenigstens einer Kontaktstelle

Publications (1)

Publication Number Publication Date
EP1903586A1 true EP1903586A1 (fr) 2008-03-26

Family

ID=38564482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07016226A Withdrawn EP1903586A1 (fr) 2006-09-20 2007-08-18 Commutateur électrique doté d'au moins une paire d'éléments de contact

Country Status (4)

Country Link
US (1) US7838788B2 (fr)
EP (1) EP1903586A1 (fr)
CN (1) CN101150016B (fr)
DE (1) DE102006044055B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3157035A1 (fr) * 2015-10-12 2017-04-19 ABB Schweiz AG Commutateur dote d'un systeme de contact

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8604376B2 (en) * 2012-02-10 2013-12-10 Defond Components Limited Electrical switch
CN115621979A (zh) * 2022-10-13 2023-01-17 管琳 一种短路自断连安全电表及断连方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2930865A (en) * 1957-07-24 1960-03-29 Illinois Tool Works Toggle switch
GB2199189A (en) * 1986-12-09 1988-06-29 Pdl Holdings Ltd Electrical toggle switch
DE19707835A1 (de) * 1997-02-27 1998-09-03 Abb Patent Gmbh Elektrisches Schaltgerät

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE274547C (fr) *
DE1590719B1 (de) * 1965-04-26 1972-03-09 Texas Instruments Inc Elektrischer Schalter mit einem hermetisch abgeschlossenen Gehaeuse
DE1951196U (de) * 1966-05-06 1966-12-08 Bosch Gmbh Robert Einpoliger elektrischer umschalter.
US3598943A (en) * 1969-12-01 1971-08-10 Illinois Tool Works Actuator assembly for toggle switch
US3591747A (en) * 1969-12-29 1971-07-06 Arrow Hart Inc Lever operated switch with tiltable contact actuator and flexible contacts
DE3626241A1 (de) * 1986-08-02 1988-02-04 Swf Auto Electric Gmbh Lenkstockschalter, insbesondere lichtschalter fuer kraftfahrzeuge
US5158172A (en) * 1991-01-28 1992-10-27 Otto Engineering, Inc. Toggle switch
DE4324206C2 (de) * 1993-07-19 2002-06-27 Teves Gmbh Alfred Elektrischer Schalter mit Schneidlager und Kontaktfeder
US5496981A (en) * 1994-07-21 1996-03-05 Sorenson; Richard W. Electrical switch
DE29917173U1 (de) * 1999-09-30 2000-08-24 Abb Patent Gmbh, 68309 Mannheim Betätigungseinrichtung für ein elektrisches Überstromrelais
CN2417548Y (zh) * 2000-02-17 2001-01-31 新巨企业股份有限公司 改良的开关结构
US6459060B1 (en) * 2000-07-24 2002-10-01 Judco Manufacturing, Incorporated Gull wing rocker switch
US6576855B2 (en) * 2001-02-02 2003-06-10 Cole Hersee Co. Rocker switch
US6559393B2 (en) * 2001-03-21 2003-05-06 Sagami Electric Company Switch having a seesaw type movable contact blade
JP3998174B2 (ja) * 2001-08-30 2007-10-24 ナイルス株式会社 スイッチ
US6596956B1 (en) * 2001-11-05 2003-07-22 Reliance Controls Corporation SPDT switch with multiple contact arrangement
US6974918B2 (en) * 2003-10-24 2005-12-13 Trw Automotive U.S. Llc Rocker switch
US6930269B1 (en) * 2004-06-28 2005-08-16 Eaton Corporation Quiet, medium current rocker switch
US7026565B1 (en) * 2004-12-27 2006-04-11 Eaton Corporation Self-contained actuator subassembly for a rocker switch and rocker switch employing the same
JP4792350B2 (ja) * 2006-08-10 2011-10-12 東洋電装株式会社 スイッチ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2930865A (en) * 1957-07-24 1960-03-29 Illinois Tool Works Toggle switch
GB2199189A (en) * 1986-12-09 1988-06-29 Pdl Holdings Ltd Electrical toggle switch
DE19707835A1 (de) * 1997-02-27 1998-09-03 Abb Patent Gmbh Elektrisches Schaltgerät

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3157035A1 (fr) * 2015-10-12 2017-04-19 ABB Schweiz AG Commutateur dote d'un systeme de contact

Also Published As

Publication number Publication date
CN101150016B (zh) 2012-07-18
DE102006044055A1 (de) 2008-04-03
US7838788B2 (en) 2010-11-23
DE102006044055B4 (de) 2009-04-09
US20080067048A1 (en) 2008-03-20
CN101150016A (zh) 2008-03-26

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