EP0572801A1 - Commutateur - Google Patents

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Publication number
EP0572801A1
EP0572801A1 EP93106937A EP93106937A EP0572801A1 EP 0572801 A1 EP0572801 A1 EP 0572801A1 EP 93106937 A EP93106937 A EP 93106937A EP 93106937 A EP93106937 A EP 93106937A EP 0572801 A1 EP0572801 A1 EP 0572801A1
Authority
EP
European Patent Office
Prior art keywords
switch
switching
cam
bearing block
bridge
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Withdrawn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
EP93106937A
Other languages
German (de)
English (en)
Inventor
Günter Merten
John Fenech
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.)
Merit-Elektrik GmbH
Merit Elektrik GmbH
Original Assignee
Merit-Elektrik GmbH
Merit Elektrik 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 Merit-Elektrik GmbH, Merit Elektrik GmbH filed Critical Merit-Elektrik GmbH
Publication of EP0572801A1 publication Critical patent/EP0572801A1/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Withdrawn legal-status Critical Current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
    • H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
    • H01H15/02—Details
    • H01H15/06—Movable parts; Contacts mounted thereon
    • H01H15/10—Operating parts
    • H01H15/102—Operating parts comprising cam devices
    • 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
    • H01H23/168—Driving mechanisms using cams
    • 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
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric

Definitions

  • the invention relates to a switch, in particular a pressure, rotary, toggle or slide switch, with a switching system that leads to a quick closing or opening of the electrical contacts of the switch, the switch having a two-armed switching bridge that is movable relative to a fixed contact part, which is tiltably mounted on a bearing block on the switch housing or base, and with an actuating part which has a cam in the region of the bearing block and can be moved transversely to the bearing block along the switching bridge.
  • the end part of the actuating shaft in a first embodiment has two molded fixed support points which are designed as rigid cams, each having a rocker with contacts thereon via an M-shaped Press the curved, prestressed leaf spring, which rests with its ends on the rocker.
  • the two middle legs of the leaf spring of this switch are alternately parallel to the geometric axis of the actuating shaft, the corresponding rocker tilting when the cam has overcome the central bend of the M-shaped leaf spring of the rocker in question.
  • the function of the rocker switch can be impaired by a decrease in the spring force of the either M-shaped leaf springs on the rockers or the V-shaped leaf springs on the actuating shaft, so that a quick switchover of the existing rockers is no longer ensured .
  • the free lever arm of the contact bridge or a link connected to it projects into the movement path of the displaceable actuating member, so that the actuating member practically represents a hold-down for the contact bridge by having one lever arm in its one displacement position and the other lever arm in the other displacement position prevents the contact bridge from turning back to its previous position. Since the lever arm of the contact bridge, which is not in contact with the actuating member, projects into the displacement region of the actuating member, the latter automatically runs against this lever arm during displacement and displaces it from its path of movement. This means a pivoting of this lever arm of the contact bridge away from the actuator. At the same time, the other lever arm of the contact bridge is then pivoted into the movement path of the actuating member.
  • both the shape of the contact bridge and the length of the actuating member must be precisely coordinated with one another so that the end of the actuating member lying in the rear in the direction of displacement does not hinder the pivoting of the released lever arm of the contact bridge into the movement path of the actuating member.
  • the conditions in this electrical switch can also be selected so that the actuator first releases the saved lever arm of the contact bridge and only hits the other lever arm after passing through a certain displacement distance.
  • the switching speed and thus the quality of the switching process is dependent on the speed of the Actuator highly dependent on each switching operation.
  • the invention has for its object to provide a particularly simple switching system for switches according to the preamble of claim 1, which brings not only an improvement in the switching feeling but also a qualitative improvement of the switching process.
  • the switching bridge in the area of the bearing block has a cam in such a way that the apexes of the two cams on the actuating part and on the switching bridge must overcome before the switching system reaches the desired ON or OFF switching position .
  • Particularly advantageous developments of the invention are characterized in claims 2 to 4.
  • the two-armed switching bridge which is tiltably mounted on a bearing block on the switch housing or base relative to a fixed contact part, has a cam in the area of the bearing block, against which the actuating part likewise having a cam runs transversely along the switching bridge the bearing block is movable in such a way that the vertices of the two cams have to overcome so that the switching system quickly changes to the desired ON or OFF switching position.
  • the operation of the switch can be easily adapted to the respective requirements by appropriate design of the cams and the interacting parts.
  • the cams of the switch can be made in one or more parts with the actuating part.
  • each cam can optionally be made from a different material than the other cam interacting with it and also as its own carrier part.
  • cams of the actuating part and switching bridge can either have a profile that is symmetrical in both directions of actuation or an asymmetric in the two directions of actuation.
  • the function of the switch can also be influenced by the fact that each or only one of the cams is self-resilient or is acted upon by a compression spring.
  • the cam for actuating the switching bridge is mounted on or in a slide or rotary part connected to the actuating part, on which a compression spring can also be supported.
  • the slide part can be connected to a push button or a plunger.
  • the actuating part can also be acted upon by a return spring acting against its actuating direction.
  • the fixed contact part can have a limited resilience.
  • the bearing block can also be a power supply or a current collector for the switching bridge.
  • the switching system shown of a switch 1 which can be, for example, a pressure, slide or plunger switch, is designed such that the overcoming of an apex between the cams 2a, 3a of the actuating part 2 and a two-armed switching bridge 3 of the switching system when ON or OFF Switching process leads to a quick closing or opening of the electrical contacts 4, 5 of the switch 1.
  • the actuating part 2 is a push button or a plunger and acts on a slide part 6 with a cam 2a, which can be formed in one or more parts with the slide part 6 and can be made of the same material or of a different material than the slide part 6.
  • the cam 2a can be a resilient component of the slide part 6 or be under the influence of a compression spring 7, which presses the cam 2a resiliently mounted on the slide part 6 against the switching bridge 3 with the cam 3a, which on a switch housing or base below the slide part 6 transversely to its actuating direction 9 arranged bearing block 8 is tiltably mounted and has a contact rivet 10 which with a contact rivet 11 on a preferably low elastic fixed contact part 12 cooperates.
  • the contact rivets 10, 11 can also be replaced by features or punctures on the interacting contact parts.
  • the fact that the fixed contact part 12 is of limited resilience reduces the risk of contact bouncing.
  • the bearing block 8 can also be a power supply or a current collector for the switching bridge 3.
  • Fig. 1 shows the rest position of the switching system, which is also the OFF position in this embodiment.
  • the cam 2a of the slide part 6 slides on the surface of the switching bridge 3 under the pressure of the compression spring 7 against the pressure of a return spring 13 and hits the cam 3a of the switching bridge 3, whereby the Resistance to the actuating part 2 increased.
  • the actuating force increases until the vertices of the two cams 2a, 3a interacting with one another according to FIG. 3 are exceeded, which not only leads to an abrupt decrease in the required actuating force, but also to an extremely rapid closing of the contacts 4, 5 the reverse movement of the slide part 6 under the action of the return spring 13, the critical opening of the contacts 4, 5 takes place quickly and thus advantageously only when the apexes between the two cams 2a, 3a are overcome.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Mechanisms For Operating Contacts (AREA)
EP93106937A 1992-06-05 1993-04-29 Commutateur Withdrawn EP0572801A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924218535 DE4218535C1 (fr) 1992-06-05 1992-06-05
DE4218535 1992-06-05

Publications (1)

Publication Number Publication Date
EP0572801A1 true EP0572801A1 (fr) 1993-12-08

Family

ID=6460445

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93106937A Withdrawn EP0572801A1 (fr) 1992-06-05 1993-04-29 Commutateur

Country Status (2)

Country Link
EP (1) EP0572801A1 (fr)
DE (1) DE4218535C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1465220A1 (fr) * 2003-04-04 2004-10-06 TRW Automotive Electronics & Components GmbH & Co. KG Interrupteur à bouton-poussoir
CN101937783A (zh) * 2009-06-29 2011-01-05 西门子公司 一种辅助开关组件

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9319762U1 (de) * 1993-12-22 1995-04-20 Merit-Elektrik GmbH, 51643 Gummersbach Schalter, insbesondere Druck-, Schiebe- oder Stößelschalter
DE102006000975B4 (de) 2005-01-12 2019-09-26 Marquardt Gmbh Elektrischer Schalter und Elektrowerkzeug damit
US8604376B2 (en) * 2012-02-10 2013-12-10 Defond Components Limited Electrical switch

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH288004A (de) * 1951-02-26 1952-12-31 Spring Fritz Elektrischer Schnappschalter mit zwei Stellungen.
GB730387A (en) * 1952-03-26 1955-05-25 Edison Swan Electric Co Ltd Improvements in or relating to snap-action electric switches
GB825456A (en) * 1955-02-14 1959-12-16 Vedder Gmbh Geb Improvements in and relating to electric switches
US2961505A (en) * 1959-07-10 1960-11-22 Allied Control Co Toggle switch
US3867604A (en) * 1973-12-18 1975-02-18 Carling Electric Inc Electric switch toggle assembly
EP0081929A2 (fr) * 1981-12-02 1983-06-22 AMP INCORPORATED (a New Jersey corporation) Assemblage de contact électrique scellé et interrupteur électrique fabriqué à partir de cet assemblage
EP0112651A1 (fr) * 1982-12-21 1984-07-04 AMP INCORPORATED (a New Jersey corporation) Commutateur électrique et mécanisme d'opération y relatif

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2121421C3 (de) * 1971-04-30 1980-08-28 J. & J. Marquardt, 7201 Rietheim Elektrischer Schalter
DE2162852C3 (de) * 1971-10-26 1974-11-07 Mecanismos Auxiliares Industriales, S.A., Valls, Tarragona (Spanien) Umschalter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH288004A (de) * 1951-02-26 1952-12-31 Spring Fritz Elektrischer Schnappschalter mit zwei Stellungen.
GB730387A (en) * 1952-03-26 1955-05-25 Edison Swan Electric Co Ltd Improvements in or relating to snap-action electric switches
GB825456A (en) * 1955-02-14 1959-12-16 Vedder Gmbh Geb Improvements in and relating to electric switches
US2961505A (en) * 1959-07-10 1960-11-22 Allied Control Co Toggle switch
US3867604A (en) * 1973-12-18 1975-02-18 Carling Electric Inc Electric switch toggle assembly
EP0081929A2 (fr) * 1981-12-02 1983-06-22 AMP INCORPORATED (a New Jersey corporation) Assemblage de contact électrique scellé et interrupteur électrique fabriqué à partir de cet assemblage
EP0112651A1 (fr) * 1982-12-21 1984-07-04 AMP INCORPORATED (a New Jersey corporation) Commutateur électrique et mécanisme d'opération y relatif

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1465220A1 (fr) * 2003-04-04 2004-10-06 TRW Automotive Electronics & Components GmbH & Co. KG Interrupteur à bouton-poussoir
US6878894B2 (en) 2003-04-04 2005-04-12 Trw Automobile Electronics & Components Gmbh & Co. Kg Pushbutton switch
CN101937783A (zh) * 2009-06-29 2011-01-05 西门子公司 一种辅助开关组件

Also Published As

Publication number Publication date
DE4218535C1 (fr) 1993-09-09

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