EP0670579A1 - Schaltvorrichtung zum Öffnen und Schliessen einer elektrischen Leitung - Google Patents

Schaltvorrichtung zum Öffnen und Schliessen einer elektrischen Leitung Download PDF

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Publication number
EP0670579A1
EP0670579A1 EP95400468A EP95400468A EP0670579A1 EP 0670579 A1 EP0670579 A1 EP 0670579A1 EP 95400468 A EP95400468 A EP 95400468A EP 95400468 A EP95400468 A EP 95400468A EP 0670579 A1 EP0670579 A1 EP 0670579A1
Authority
EP
European Patent Office
Prior art keywords
operating member
pusher
contact
flexible
contact piece
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
EP95400468A
Other languages
English (en)
French (fr)
Other versions
EP0670579B1 (de
Inventor
Pascal Gonin
Vincent Eudeline
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.)
Radiall SA
Original Assignee
Radiall SA
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 Radiall SA filed Critical Radiall SA
Publication of EP0670579A1 publication Critical patent/EP0670579A1/de
Application granted granted Critical
Publication of EP0670579B1 publication Critical patent/EP0670579B1/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
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/20—Driving mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/645—Driving arrangements between movable part of magnetic circuit and contact intermediate part making a resilient or flexible connection
    • H01H50/646—Driving arrangements between movable part of magnetic circuit and contact intermediate part making a resilient or flexible connection intermediate part being a blade spring

Definitions

  • the present invention relates to a switching device for opening and closing an electrical line, in particular a high frequency switch able to operate as well with continuous, low, medium or high frequency signals.
  • Switching devices are already known for opening and closing an electrical line in which a blade-shaped contact piece is supported by an actuator movable in translation between a position in which said contact piece is applied on two contact terminals by closing the power line, and a position in which it is spaced from said contact terminals by opening the power line.
  • the contact piece During its translational movements, the contact piece is guided by rods along which it slides, in order to ensure proper application of said contact piece against the contact terminals.
  • Document DE-A-2 417 280 discloses a switch for an electric typewriter keyboard key, in which the operating member carrying the contact piece is guided by two parallel flexible blades which are embedded in a fixed support. .
  • the contacting of the contact piece on the contact terminal is accompanied by a slight sliding which can degrade the quality of the electrical contact.
  • the present invention aims in particular to solve these problems.
  • the subject of the present invention is a switching device for opening and closing an electric line, comprising two contact terminals, an operating member comprising a contact part, capable of being moved axially between a closed position in which the contact part applies simultaneously to the two contact terminals by electrically connecting them and an open position in which the contact piece is spaced from the two contact terminals, and two parallel flexible blades integral with said operating member, characterized in that the central part of each flexible blade is integral with the operating member and that each of the ends of each flexible blade is housed in a cradle of a support.
  • the operating member is located in the central part of each flexible blade, that is to say in the part of the flexible blades where their amplitude of deformation is maximum along the axis of movement of the operating device.
  • the switch can have a reduced overall size because the support for the flexible blades can be centered relative to the operating member, for example by being placed above the two contact terminals of the switch.
  • the two flexible blades are housed at their ends in a cradle of a support, and not embedded, makes it possible to create a pivot connection between the support and the ends of the blades.
  • This pivot link gives increased flexibility to the blades, without the latter having to have a significant length.
  • the operating member is moved by means of an axial displacement actuator which acts on at least one flexible control blade, substantially perpendicular to the axis of movement of the member maneuver, and able to transmit to the latter the movements of the actuator.
  • the interposition of a flexible control blade between the actuator and the operating member has the advantage that a possible difference in axial movement between the actuator and the operating member can be compensated for by a deformation of the flexible control blade.
  • the switching device shown in the drawing comprises an operating member 1 which comprises a contact piece 2, electrically conductive, and a pusher 3, electrically insulating.
  • the pusher 3 is substantially cylindrical, while the contact piece 2 is in the form of a substantially rectangular metal strip.
  • the contact piece 2 is able to be applied simultaneously to two contact terminals 4, 5 which have contact surfaces 4 a , 5 a , situated in the same plane parallel to the contact piece 2.
  • the contact terminals 4 and 5 are each located in a housing provided for this purpose in a conductive body 6, at a distance from the wall of the housing, said terminals being electrically isolated from said body.
  • the conductive body 6 comprises an electrically conductive closure plate 7 in which is formed an orifice 7 a allowing the passage of the pusher 3.
  • the electric line formed by the two contact terminals 4, 5 and the contact piece 2 is thus protected from any electromagnetic radiation outside the switching device.
  • the operating member 1 is integral with two parallel flexible blades 8 and 9, the general shape of which is visible in FIG. 1.
  • Each flexible blade is retained at each of its ends 8a, 9a in a cradle of a support 10.
  • the support 10 comprises four parallel arms 10 a , each of which comprises a cradle 10 b capable of receiving the end 8a, 9a of a flexible blade 8, 9, said end being simply placed in the cradle where it is immobilized because its dimensions are very slightly smaller than those of the cradle.
  • each end 8a, 9a is free to leave the cradle 10 b in which it is housed.
  • the pusher 3 can only move in an axial translational movement during which the flexible blades 8, 9 flex while remaining parallel to each other.
  • the size of the switch is substantially limited to the spacing of the two contact terminals, the support 10 being centered relative to the pusher 3.
  • FIG. 2 shows the switching device in the open position of the operating member, the contact piece 2 being spaced from the contact terminals 4 and 5.
  • the flexible blades 8, 9 have a natural camber which corresponds to that shown in FIG. 2.
  • the pusher 3 transmits this force to the contact piece 2 which is thus suitably applied against the closure plate 7.
  • FIG. 4 shows an example of a structure making it possible to secure the flexible blades 8, 9 to the pusher 3.
  • the opening of the sleeve 13 must be large enough to allow engagement thereof, by a radial translational movement, on the upper part of the pusher 3.
  • An internal rib 14 of the sleeve 13 is capable, by rotation of the sleeve 13, of coming to cooperate with a groove 15 provided on the pusher 3.
  • cambered blades 8, 9 push the pusher 3 permanently along the arrow 11, it is not useful to provide a stop between the lower part of the pusher 3 and the blade 9, the contact piece 2 fulfilling this function by pressing against the closing plate 7.
  • a flexible annular membrane 16 provides a seal between the pusher 3 and the closure plate 7.
  • the switching device comprise no part which would be liable to generate dust by friction against another part, but also, the membrane 16 provides protection of the contact parts of the device against possible dust which could come from from the outside and enter the housing 6 through the orifice 7 a .
  • An actuator 17, for example electromagnetic, is capable of moving along an axis parallel to that of the pusher 3.
  • control blade 18 is located in the vicinity of the free end of the pusher 3.
  • control blade 18 is capable of transmitting to the pusher 3 the translational movements of the actuator 17 which are directed according to the arrow 20 indicated in Figure 3, to bring the operating member 1 in its closed position .
  • control blade 18 makes it possible to use an actuator 17 whose axial movement is slightly too large compared to that of the operating member 1, which guarantees optimal contact between contact terminals 4, 5 and contact part 2.
  • FIGS. 5 and 6 which represent the pusher 3 and the contact piece 2 seen from below with respect to the previous figures, a rectangular slot 22 is cut in the central part of the contact piece 2 while a pin 23 of corresponding shape is provided at the end of the pusher 3.
  • the stud 23 is crushed, for example using a high-frequency vibrating tool, to secure the contact piece 2 and the pusher 3, as illustrated in FIG. 7.
  • An anti-rotation connection is also provided between the pusher 3 and the flexible blades, as visible in FIG. 1, by giving the pusher a section of substantially rectangular shape at least in its part of connection with the flexible blades which are provided with orifices 24 of corresponding form.

Landscapes

  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
EP95400468A 1994-03-04 1995-03-03 Schaltvorrichtung zum Öffnen und Schliessen einer elektrischen Leitung Expired - Lifetime EP0670579B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9402506 1994-03-04
FR9402506A FR2717003B1 (fr) 1994-03-04 1994-03-04 Dispositif de commutation pour ouvrir et fermer une ligne électrique.

Publications (2)

Publication Number Publication Date
EP0670579A1 true EP0670579A1 (de) 1995-09-06
EP0670579B1 EP0670579B1 (de) 1999-07-21

Family

ID=9460681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95400468A Expired - Lifetime EP0670579B1 (de) 1994-03-04 1995-03-03 Schaltvorrichtung zum Öffnen und Schliessen einer elektrischen Leitung

Country Status (5)

Country Link
US (1) US5528006A (de)
EP (1) EP0670579B1 (de)
JP (1) JPH0845388A (de)
DE (2) DE670579T1 (de)
FR (1) FR2717003B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1349187A1 (de) * 2002-03-26 2003-10-01 Radiall Schaltvorrichtung zum Öffnen und Schliessen von zumindest einer elektrischen Leitung
EP1916690A1 (de) * 2005-08-12 2008-04-30 Omron Corporation Relais
CN102683079A (zh) * 2011-03-10 2012-09-19 海洋王照明科技股份有限公司 一种防水开关结构及包括该防水开关结构的照明装置
FR3041810A1 (fr) * 2015-09-24 2017-03-31 Radiall Sa Dispositif de commutation sans frottement pour ouvrir et fermer une ligne electrique, a precision de manœuvre amelioree

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080125765A1 (en) * 2006-11-24 2008-05-29 Berenshteyn A Microwave apparatus for ablation
US8343144B2 (en) * 2008-02-11 2013-01-01 Expandoheat, Llc Apparatus and method for vessel sealing and tissue coagulation
DE102015212817A1 (de) * 2015-07-08 2017-01-12 Te Connectivity Germany Gmbh Kontaktbrückenanordnung für ein elektrisches Schaltelement

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE35730C (de) * E. ZELLER in Greenock, Schottland Apparat zum Schliefsen und Unterbrechen eines elektrischen Stromkreises
FR1459667A (fr) * 1964-12-15 1966-11-18 Inventio Ag Mécanisme de fermeture pour ponts de contact de commutateurs à touches
US3582594A (en) * 1968-11-15 1971-06-01 Mechanical Enterprises Inc Actuator useable for electric switches and the like
DE2417280A1 (de) * 1973-04-09 1974-10-24 Alphameric Holdings Ltd Tastatur zur erzeugung elektrischer signale
DE3711789A1 (de) * 1987-04-08 1988-10-27 Kostal Leopold Gmbh & Co Kg Drucktastenschalter
WO1992001302A1 (de) * 1990-07-11 1992-01-23 Siemens Aktiengesellschaft Einrichtung zum übertragen einer linearbewegung mit hilfe eines tastelements

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2472333A (en) * 1945-06-04 1949-06-07 Everard F Kohl Snap acting electric switch
US2473970A (en) * 1946-08-29 1949-06-21 First Ind Corp Snap acting device and electric switch
US3769474A (en) * 1971-11-29 1973-10-30 Allen Bradley Co Contact pressure sustaining switch
US3973094A (en) * 1975-04-28 1976-08-03 Allen-Bradley Company Two-stage snap-action switch
US4152563A (en) * 1976-11-29 1979-05-01 B/W Controls, Inc. Push-button reversing switch
DE2752638C2 (de) * 1977-11-25 1986-02-20 Schaltbau GmbH, 8000 München Schnappschalter mit Doppelunterbrechung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE35730C (de) * E. ZELLER in Greenock, Schottland Apparat zum Schliefsen und Unterbrechen eines elektrischen Stromkreises
FR1459667A (fr) * 1964-12-15 1966-11-18 Inventio Ag Mécanisme de fermeture pour ponts de contact de commutateurs à touches
US3582594A (en) * 1968-11-15 1971-06-01 Mechanical Enterprises Inc Actuator useable for electric switches and the like
DE2417280A1 (de) * 1973-04-09 1974-10-24 Alphameric Holdings Ltd Tastatur zur erzeugung elektrischer signale
DE3711789A1 (de) * 1987-04-08 1988-10-27 Kostal Leopold Gmbh & Co Kg Drucktastenschalter
WO1992001302A1 (de) * 1990-07-11 1992-01-23 Siemens Aktiengesellschaft Einrichtung zum übertragen einer linearbewegung mit hilfe eines tastelements

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1349187A1 (de) * 2002-03-26 2003-10-01 Radiall Schaltvorrichtung zum Öffnen und Schliessen von zumindest einer elektrischen Leitung
FR2837977A1 (fr) * 2002-03-26 2003-10-03 Radiall Sa Dispositif de commutation pour ouvrir et fermer au moins une ligne electrique
US7015777B2 (en) 2002-03-26 2006-03-21 Radiall Switch device for opening and closing at least one electrical line
EP1916690A1 (de) * 2005-08-12 2008-04-30 Omron Corporation Relais
EP1916690A4 (de) * 2005-08-12 2009-03-18 Omron Tateisi Electronics Co Relais
US7847660B2 (en) 2005-08-12 2010-12-07 Omron Corporation Relay
CN101283431B (zh) * 2005-08-12 2011-04-13 欧姆龙株式会社 继电器
CN102683079A (zh) * 2011-03-10 2012-09-19 海洋王照明科技股份有限公司 一种防水开关结构及包括该防水开关结构的照明装置
CN102683079B (zh) * 2011-03-10 2015-05-13 海洋王照明科技股份有限公司 一种防水开关结构及包括该防水开关结构的照明装置
FR3041810A1 (fr) * 2015-09-24 2017-03-31 Radiall Sa Dispositif de commutation sans frottement pour ouvrir et fermer une ligne electrique, a precision de manœuvre amelioree
CN106847621A (zh) * 2015-09-24 2017-06-13 雷迪埃公司 具有提高的操作精度的断开和闭合电气线路的无摩擦开关装置
US9818566B2 (en) 2015-09-24 2017-11-14 Radiall Frictionless switching device for opening and closing an electrical line, with improved operating accuracy
US10176954B2 (en) 2015-09-24 2019-01-08 Radiall Frictionless switching device for opening and closing an electrical line, with improved operating accuracy
CN106847621B (zh) * 2015-09-24 2019-02-22 雷迪埃公司 具有提高的操作精度的断开和闭合电气线路的无摩擦开关装置

Also Published As

Publication number Publication date
FR2717003B1 (fr) 1996-04-12
JPH0845388A (ja) 1996-02-16
EP0670579B1 (de) 1999-07-21
US5528006A (en) 1996-06-18
DE670579T1 (de) 1996-05-02
FR2717003A1 (fr) 1995-09-08
DE69510839T2 (de) 2000-03-16
DE69510839D1 (de) 1999-08-26

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