EP0863525B1 - Appareil de commutation électrique - Google Patents

Appareil de commutation électrique Download PDF

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Publication number
EP0863525B1
EP0863525B1 EP98100759A EP98100759A EP0863525B1 EP 0863525 B1 EP0863525 B1 EP 0863525B1 EP 98100759 A EP98100759 A EP 98100759A EP 98100759 A EP98100759 A EP 98100759A EP 0863525 B1 EP0863525 B1 EP 0863525B1
Authority
EP
European Patent Office
Prior art keywords
contact
rocker
switching
cams
movement
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
EP98100759A
Other languages
German (de)
English (en)
Other versions
EP0863525A2 (fr
EP0863525A3 (fr
Inventor
Frank M. Dipl.-Ing. Claus
Michael Dipl.-Ing. Knorr
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 Patent GmbH
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 EP0863525A2 publication Critical patent/EP0863525A2/fr
Publication of EP0863525A3 publication Critical patent/EP0863525A3/fr
Application granted granted Critical
Publication of EP0863525B1 publication Critical patent/EP0863525B1/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
    • 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
    • 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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H2009/307—Means for extinguishing or preventing arc between current-carrying parts with slow break, e.g. for AC current waiting for a zero crossing
    • 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
    • H01H23/166—Driving mechanisms with positive action
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/52—Driving mechanisms, i.e. for transmitting driving force to the contacts with means to ensure stopping at intermediate operative positions
    • 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

Definitions

  • the invention relates to an electrical switching device, in particular an installation switching device, with at least one contact point made by at least one fixed contact and a movable contact is formed, which movable contact on a contact rocker is arranged, which is supported on a blade-shaped bearing contact and for switching operation cooperates with a rocker switch, which for actuation the contact rocker is provided with a spherical pressure piece.
  • Electrical switching devices especially those for domestic installation, are different Form and function as surface-mounted and flush-mounted devices for many years in practical use.
  • electrical contact arrangements arise when disconnecting the contacts, that is when lifting the movable contact piece from the fixed contact piece, electric arcs between the contact pieces, which cause the contact material to burn depending on the current strength and adversely affect the switching behavior of the electrical switching device impact.
  • Such a switching device is from the British patent GB921819 A known.
  • the rocker switch executes one when actuated on the contact rocker translatory movement in such a way that the rocker switch takes off early here short distance of the movable contact piece arranged on the contact rocker caused by the associated fixed contact piece, resulting in a shortened active arc time results.
  • the rocker switch has on their surface facing the contact rocker in the direction of movement on both sides of the spherical pressure piece molded cams that work with the contact rocker and here the pivoting movement of the contact rocker and thus its Check lifting off the fixed contact piece.
  • the molded on the rocker switch So cams serve just like the pressure piece mentioned at the outset to actuate the Contact rocker. It can advantageously be additionally provided that the contact rocker is provided with projections directed to the rocker switch, which with the the cams formed on the rocker switch.
  • the operation of the contact arrangement designed in this way is based on the fact that as already mentioned above, a first actuation of the contact rocker by means of of a first cam formed on the rocker switch takes place by the first Cams on the rocker switch, before that on the translationally moving At the end of the rocker switch, the pressure piece arranged the bearing point of the cutting edge bearing exceeds, thereby causing the lifting from the fixed contact piece.
  • the contact rocker While the pressure piece continues to move on the contact rocker and also during this exceeds the bearing point of the cutting edge bearing, so that the contact rocker releases from the first cam, the contact rocker arrives with a second cam, the seen in the direction of movement of the rocker switch on the back, that is behind the Pressure piece on which the rocker switch is molded.
  • This second cam ensures that the contact distance does not increase until the rocker switch reaches the end position. Only when the rocker switch is in its end position, i.e. its second rest position in the case of a bistable switch, the contact rocker disengages with the second cam on the rocker switch, so that the contact rocker opens and the sets the intended largest possible contact distance.
  • the rocker switch when actuated with the spherical pressure piece on the contact rocker from. Prevent when changing position beyond the cutting edge storage the molded cams on the rocker switch a further opening of the contact point, so that the contact rocker at a defined distance from the associated contact piece remains until the rocker switch has reached its end position.
  • the cams formed on the rocker switch pivot the contact rocker in collaboration with the pressure piece while the pressure piece is at its point of contact shifted on the contact rocker in the direction of movement and the associated one
  • cams act upon the contact rocker and thereby lifts the movable contact arranged on the contact rocker from the fixed contact.
  • the contact rocker bears against the assigned cam, as a result of which movable contact is kept at a short distance from the fixed contact and at If the bearing contact is exceeded by the pressure piece, the moving contact spontaneously occupies the full open position.
  • FIG. 1 is a partial sectional view of a contact arrangement 10 of a Switching device according to the invention in a first switching position, namely the first of two end positions, shown.
  • the contact arrangement 10 comprises a rocker switch 12, a contact rocker 14 with a movable contact piece 16 and arranged thereon two fixed contact pieces 18, 20, between which the contact rocker 14 can be pivoted is led and contacted them alternately.
  • the rocker switch 12 is pivotally mounted about a pivot point 13 and quasi arranged perpendicular to the contact rocker 14 acted upon by it.
  • the contact rocker 14 is in turn mounted on a cutting edge 22, which leads to a connection contact 24 belongs, which forms an electrical unit with the contact rocker 14.
  • a pressure piece 26 is provided, which is preferably one of a pressure spring loaded ball 26 is not shown here, the rolls when the switch is actuated on the contact rocker 14 and so the switching is virtually frictionless effected from the first end position into the second end position.
  • the rocker switch 12 is in its end region facing the contact rocker 14 with in Formations 28, 29 pointing in the direction of their pivoting movement, which harmonize with the shape of the contact rocker 14 and are compatible with it.
  • the Shape of the contact rocker 14 is provided according to the invention such that the area 30 of the contact rocker 14 acted upon by the pressure piece 26 of the rocker switch at its horizontally located ends each by a raised edge 32, 33 is limited, with the edge horizontal on one side, in the figures the left side is extended and receives the movable contact piece 24.
  • FIG. 1 shows the arrangement 10 according to the invention in the first End position in which both the rocker switch 12 and the contact rocker 14 a oblique position, that is, from the vertical or from the horizontal take a different position.
  • the essence of the inventive design of the contact arrangement 10 is in that the pivoting movement of the contact rocker 14 is not, as in conventional Switching devices usually takes place suddenly, but rather in stages or respectively delayed, so that the electrical to be switched here during a switching operation Currents by lifting the movable contact piece 16 either not at all an arc can occur or it extinguishes so quickly that it does not burn caused and so the contacts are protected.
  • the design according to the invention serves to solve this technical problem the rocker switch 12 with corresponding formations, at least in the direction of Pivotal movement are provided, but also, for example, as an annular bead on the front End can be formed. It is important that the contact rocker 14 is provided with a compatible shape, which with the molded parts work together on the rocker switch 12.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Tumbler Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Electronic Switches (AREA)
  • Contacts (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Push-Button Switches (AREA)
  • Valve Device For Special Equipments (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Lock And Its Accessories (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Claims (2)

  1. Appareil de commutation électrique, notamment interrupteur d'installation, avec au moins un point de contact (10) formé par au moins un contact fixe (18, 20) et un contact mobile (16), lequel contact mobile (16) est disposé sur une bascule de contact (14) qui s'appuie sur un support (22) avec un contact de connexion (24) et coopère pour son actionnement en commutation avec une bascule de commutation (12) qui est pourvue pour l'actionnement de la bascule de contact (14) d'un élément d'appui sphérique (26), dans lequel la bascule de commutation (12) roule avec l'élément d'appui sphérique (26) sur la bascule de contact (14) lors de l'actionnement et effectue alors un mouvement de translation, la bascule de commutation (12) soulevant alors le contact mobile (16) disposé sur la bascule de contact (14) du contact fixe (18, 20) correspondant,
    dans lequel le support est conçu comme un support à couteau (22),
    dans lequel la bascule de commutation (12) présente à son extrémité orientée vers la bascule de contact (14), dans le sens du déplacement, des cames (28, 29) formées de part et d'autres de l'élément d'appui sphérique (26), qui coopèrent avec la bascule de contact (14) et contrôlent le mouvement basculant de la bascule de contact (14) et ainsi son soulèvement du contact fixe (18, 20),
    dans lequel la bascule de contact (14) est pourvue de saillies (32, 33) orientées vers la bascule de commutation (12), qui coopèrent avec les cames (28, 29) formées sur la bascule de commutation (12),
    dans lequel la forme géométrique et l'emplacement des cames formées (28, 29) permettent d'ajuster le temps de commutation, la position des instants de commutation, la vitesse de commutation et leur évolution dans le temps,
    dans lequel la bascule de contact (14) reste à une distance définie du contact fixe (18, 20) correspondant jusqu'à ce que la bascule de commutation (12) ait basculé de l'autre côté du support à couteau (22),
    et dans lequel le mouvement basculant de la bascule de contact (14) s'effectue par étapes, de telle sorte que lors d'une opération de commutation, le soulèvement du contact mobile (16) ne produise pas d'arc électrique ou que ce dernier s'éteigne suffisamment vite pour qu'il n'y ait pas d'usure par combustion,
    caractérisé en ce que, lorsque la bascule de commutation (12) avec les cames (28, 29) formées sur elle bascule et que l'élément d'appui sphérique (26) change de point d'appui sur la bascule de contact (14) dans le sens du déplacement, la came (28, 29) correspondante agit sur la bascule de contact (14) à la suite de son basculement et soulève ainsi le contact mobile (16) disposé sur la bascule de contact (14) du contact fixe (18, 20).
  2. Appareil de commutation électrique selon la revendication 1, caractérisé en ce que la zone de la bascule de contact (14) sollicitée par l'élément d'appui sphérique (26) est plane et repose au milieu sur le support à couteau (22).
EP98100759A 1997-02-27 1998-01-17 Appareil de commutation électrique Expired - Lifetime EP0863525B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19707835 1997-02-27
DE19707835A DE19707835A1 (de) 1997-02-27 1997-02-27 Elektrisches Schaltgerät

Publications (3)

Publication Number Publication Date
EP0863525A2 EP0863525A2 (fr) 1998-09-09
EP0863525A3 EP0863525A3 (fr) 1999-01-20
EP0863525B1 true EP0863525B1 (fr) 2004-05-19

Family

ID=7821632

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98100759A Expired - Lifetime EP0863525B1 (fr) 1997-02-27 1998-01-17 Appareil de commutation électrique

Country Status (7)

Country Link
EP (1) EP0863525B1 (fr)
AT (1) ATE267455T1 (fr)
CZ (1) CZ55398A3 (fr)
DE (2) DE19707835A1 (fr)
NO (1) NO980806L (fr)
PL (1) PL325041A1 (fr)
RU (1) RU98103799A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101159194B (zh) * 2006-10-05 2010-06-09 勒格朗法国公司 安全电气开关
CN107658154A (zh) * 2017-10-18 2018-02-02 罗格朗(北京)电气有限公司 用于开关装置的动触片及具有其的开关装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPR168200A0 (en) * 2000-11-24 2000-12-21 University Of South Australia Electrical switch with switching bridge
DE102006044055B4 (de) * 2006-09-20 2009-04-09 Abb Ag Elektrisches Schaltgerät mit wenigstens einer Kontaktstelle
EP2267740A1 (fr) * 2009-06-25 2010-12-29 Abb Ag Mécanisme de commutation d'un commutateur d'installation
CN105264627B (zh) 2013-03-28 2017-03-22 Abb 技术有限公司 闸刀开关、包括闸刀开关的开关装置及开关设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725438A (en) * 1952-09-15 1955-11-29 Arrow Hart & Hegeman Electric Alternating current switch mechanism
GB921819A (en) * 1960-10-28 1963-03-27 Crabtree & Co Ltd J A Improvements in rocker-operated electric switches
FR1489702A (fr) * 1962-12-26 1967-07-28 Dispositif pour réduire l'usure des contacts dans les appareils de commutation de courant alternatif
NZ218566A (en) * 1986-12-09 1990-12-21 Pdl Holdings Ltd Slow break, fast make rocker activated switch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101159194B (zh) * 2006-10-05 2010-06-09 勒格朗法国公司 安全电气开关
CN107658154A (zh) * 2017-10-18 2018-02-02 罗格朗(北京)电气有限公司 用于开关装置的动触片及具有其的开关装置
CN107658154B (zh) * 2017-10-18 2020-09-15 Tcl-罗格朗国际电工（惠州）有限公司 用于开关装置的动触片及具有其的开关装置

Also Published As

Publication number Publication date
DE59811407D1 (de) 2004-06-24
NO980806L (no) 1998-08-28
EP0863525A2 (fr) 1998-09-09
ATE267455T1 (de) 2004-06-15
DE19707835A1 (de) 1998-09-03
NO980806D0 (no) 1998-02-26
EP0863525A3 (fr) 1999-01-20
PL325041A1 (en) 1998-08-31
RU98103799A (ru) 1999-12-27
CZ55398A3 (cs) 1998-12-16

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