EP0305436B1 - Betätigungselement mit einem dünnen, sich wölbenden schnappglied - Google Patents

Betätigungselement mit einem dünnen, sich wölbenden schnappglied Download PDF

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Publication number
EP0305436B1
EP0305436B1 EP88902155A EP88902155A EP0305436B1 EP 0305436 B1 EP0305436 B1 EP 0305436B1 EP 88902155 A EP88902155 A EP 88902155A EP 88902155 A EP88902155 A EP 88902155A EP 0305436 B1 EP0305436 B1 EP 0305436B1
Authority
EP
European Patent Office
Prior art keywords
disc
actuation element
element according
arm
thin
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
EP88902155A
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English (en)
French (fr)
Other versions
EP0305436A1 (de
Inventor
Concept S.A. Delta
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.)
Delta Concept SAS
Original Assignee
Delta Concept SAS
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 Delta Concept SAS filed Critical Delta Concept SAS
Priority to AT88902155T priority Critical patent/ATE98399T1/de
Publication of EP0305436A1 publication Critical patent/EP0305436A1/de
Application granted granted Critical
Publication of EP0305436B1 publication Critical patent/EP0305436B1/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
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • 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
    • H01H5/30—Energy stored by deformation of elastic members by buckling of disc springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • H01H2037/549—Details of movement transmission between bimetallic snap element and contact

Definitions

  • the present invention relates to an actuating element intended to establish an electrical contact.
  • Document DE-B-1 060 456 describes an electrical switch which comprises a thin blade which is deformable in the direction of its thickness and placed between two opposite supports, so as to occupy two arched extreme positions situated on either side of a median plane.
  • This blade is provided with a tab fixed on one of its faces and the outer end of which moves away from or approaches the central part of this blade during its deformation, so that the amplitude of the movement of the free end of the tab is greater than the amplitude of deformation of the blade.
  • this blade carries an electrical contact at its end.
  • the actuating element comprises a thin piece deformable in the direction of its thickness so as to occupy two arcuate extreme positions situated on either side of a median plane and provided at least one attached lug and intended to establish an electrical contact, the amplitude of movement of the free end of this lug being greater than the amplitude of deformation of said part, the outer end of this lug being fixed on one of the faces of said thin piece and its free end moving away from or approaching, on one side, the central part of said thin piece during the deformation of the latter.
  • said thin part is a disc, the edge of this disc and the free end of said tab being respectively in contact between a support and a member to be actuated sliding and acting on at least one electrical contact.
  • the aforementioned disc can be provided with at least two opposite tabs.
  • the aforementioned disc is elastically deformable.
  • the above-mentioned disc consists of a circular bimetallic strip.
  • the actuating element can comprise at least one stack comprising at least two discs provided with at least two opposite tabs, the free ends of the tabs of one of the discs being supported on the free ends of the other tab.
  • the actuating element can comprise a multiplicity of lugs integral with a crown fixed to the aforementioned disc.
  • the aforementioned disc may have a central passage, said tab extending substantially to the edge of this passage.
  • said tab can be constituted by a bimetallic strip deforming in the direction of the thickness of the aforementioned disc and in the same direction.
  • an actuating element has generally been represented by the reference 1 which comprises a thin piece 2 in the form of a disc which is made of an elastically deformable material, in the direction of its thickness, so as to occupy a first stable, arched or curved position visible in FIG. 2 and a second unstable position visible in FIG. 3 in which it is arched or curved on the other side of its median plane, this thin piece 2 is adapted to pass from its stable position to its unstable position for example by pressing on its central part and return to its stable position by the fact of its elasticity.
  • the maximum amplitude of movement of this thin disc-shaped piece 2 corresponds to the amplitude of the displacement of its central part.
  • the actuating element 1 further comprises two opposite tabs 3 and 4 which extend radially to the disc 2 and whose outer end is fixed to the concave face 5 of this disc 2 when the latter is in its stable position visible on Figure 2, via rivets 6 and 7, these tabs 3 and 4 extending towards each other along the face 5 so that their adjacent ends 8 and 9 are located in the part center of the thin disc-shaped piece 2.
  • the actuating element 10 comprises a thin disc-shaped piece 11 consisting of two discs 12 and 13 joined together so as to constitute a bimetallic strip capable of deforming depending on the temperature in the direction of its thickness in a slow or rapid manner .
  • the actuating element 10 further comprises two opposite tabs 14 and 15 which are fixed, as in the previous example, on one of the faces of the thin disc-shaped piece 11 and which, this time, are each constituted by two blades 16, 17 and 18, 19 joined so as to constitute bimetallic strips capable of deforming as a function of the temperature in the thickness direction of the thin disc-shaped piece 11 and in the same direction.
  • the outer ends of the two legs 14 and 15 are fixed to the thin disc-shaped part 11 by gluing.
  • the peripheral edge of the thin disc-shaped part 11 is supported on the cover 20 of a switch box 21 and the free ends of the tabs 14 and 15 are pressed against the end of a pusher 22 adapted for slide in the housing 21 in the thickness direction of the thin disc-shaped piece 11.
  • the other end of this pusher 22 is capable of moving the movable element 23 of a switch generally identified by the reference 24 and mounted in the housing 21, against a spring 25.
  • the actuating element 10 deforms so as to pass from its position visible in FIG. 4 to its position visible in FIG. 5 or vice versa, these changes in position corresponding to changes in position of the actuating element 1 seen previously with reference to FIGS. 2 and 3, with an increase in the amplitude of movement of the thin piece 11 in the form of a disc thanks to the provision of opposite tabs 14 and 15.
  • the deformations of the lugs 14 and 15 made up of bimetallic strips also amplify the deformation of the thin disc-shaped piece 11. In doing so, the deformation of the actuating element 10 causes the actuation of the switch 24, in the direction of its opening or closing, by displacement of its movable member 23 via the pusher 22.
  • an actuating element generally identified by the reference 26 which comprises a thin disc-shaped piece 27 constituting as before a bimetallic strip, on the one of the faces of which is fixed a crown 28 by means of four rivets 29, this crown being provided with four regularly distributed tabs 30 which extend radially towards the central part of the thin disc-shaped part 27 and whose interior free ends 31 go to the edge of a central passage 32 provided in the thin disc-shaped part 27.
  • This actuating element 26 is adapted to deform in the same way as the actuating elements 1 and 10 described previously.
  • FIG. 7 we see that there is shown a stack of four actuating elements 26, in pairs, so that the free ends 31 of the tabs 30 between two adjacent discs are supported on each other and that the peripheral edges of the thin disc-shaped pieces 27 of the two actuating elements 26 of the end of the stack are supported one on a support 33 and the other on a plate 34 connected to a rod to be actuated 35 which extends through the central passages 32 of the four stacked actuating elements 26 and through the support 33, the actuating elements 26 extending around the rod 35 and being centered and guided by the latter .
  • the four actuating elements 26 deform in the direction of their thickness as we have already seen previously and allow the movement of the plate 34 and consequence of the rod 35 relative to the support 33, the amplitude of this displacement corresponding to the addition of the amplitude of the deformations of the four stacked actuating elements 26.
  • the effect of the legs associated with the thin piece deformable in the direction of its thickness could be achieved with thin pieces of different shapes and in particular with thin pieces in the form of strips, for example rectangular elastically deformable or constituting bimetallic strips.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)
  • Push-Button Switches (AREA)
  • Prostheses (AREA)
  • Switches With Compound Operations (AREA)
  • Adornments (AREA)
  • Transmission Devices (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Pens And Brushes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Claims (8)

  1. Betätigungselement (1; 10; 26), aufweisend ein dünnes Teil (2; 11; 27), das in der Richtung seiner Dicke deformierbar ist, derart, daß es zwei auf beiden Seiten einer Mittelebene liegende, gebogene Endstellungen einnimmt, und versehen mit wenigstens einem Plattenansatz (3, 4; 14, 15; 31), der angesetzt und dazu bestimmt ist, einen elektrischen Kontakt herzustellen, wobei die Amplitude der Bewegung des freien Endes dieser Ansatzplatte größer als die Deformationsamplitude des Teils ist, wobei das Außenende der Ansatzplatte auf einer der Seiten des dünnen Teils befestigt ist und sich ihr freies Ende von einer Seite des zentralen Teils des dünnen Teils während der Deformation des letzteren entfernt oder sich dieser nähert, dadurch gekennzeichnet, daß das dünne Teil eine Scheibe ist und daß sich der Rand der Scheibe und das freie Ende der Ansatzplatte jeweils in Auflage gegen einen Träger (20; 30) und ein Betätigungsorgan (22; 35) befinden, das verschiebbar ist und wenigstens einen elektrischen Kontakt (24) betätigt.
  2. Betätigungselement nach Anspruch 1, dadurch gekennzeichnet, daß die vorgenannte Scheibe mit wenigstens zwei gegenüberliegenden Ansatzplatten versehen ist.
  3. Betätigungselement nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die vorgenannte Scheibe elastisch deformierbar ist.
  4. Betätigungselement nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die vorgenannte Scheibe aus einem kreisförmigen Bimetall besteht.
  5. Betätigungselement nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß es wenigstens eine Lagenanordnung aufweist, die wenigstens zwei mit wenigstens zwei gegenüberliegenden Ansatzplatten versehene Scheiben aufweist, wobei die freien Enden der Ansatzplatten der einen der Scheiben sich in Auflage auf den freien Enden der anderen Ansatzplatte befinden.
  6. Betätigungselement nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß es eine Vielzahl von Ansatzplatten aufweist, die mit einem Ringteil (28) verbunden sind, das auf der vorgenannten Scheibe befestigt ist.
  7. Betätigungselement nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die vorgenannte Scheibe eine zentrale Durchführung (32) aufweist, wobei sich die Ansatzplatte etwa bis zum Rand der Durchführung erstreckt.
  8. Betätigungselement nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Ansatzplatte aus einem Bimetall besteht, das sich in der Richtung der Dicke der vorgenannten Scheibe und in derselben Richtung deformiert.
EP88902155A 1987-02-27 1988-02-26 Betätigungselement mit einem dünnen, sich wölbenden schnappglied Expired - Lifetime EP0305436B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88902155T ATE98399T1 (de) 1987-02-27 1988-02-26 Betaetigungselement mit einem duennen, sich woelbenden schnappglied.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8702685A FR2611980B1 (fr) 1987-02-27 1987-02-27 Element d'actionnement presentant une piece mince deformable dans le sens de son epaisseur
FR8702685 1987-02-27

Publications (2)

Publication Number Publication Date
EP0305436A1 EP0305436A1 (de) 1989-03-08
EP0305436B1 true EP0305436B1 (de) 1993-12-08

Family

ID=9348435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88902155A Expired - Lifetime EP0305436B1 (de) 1987-02-27 1988-02-26 Betätigungselement mit einem dünnen, sich wölbenden schnappglied

Country Status (7)

Country Link
US (2) US4914415A (de)
EP (1) EP0305436B1 (de)
JP (1) JPH01502790A (de)
AT (1) ATE98399T1 (de)
DE (1) DE3886141T2 (de)
FR (1) FR2611980B1 (de)
WO (1) WO1988006799A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5123332A (en) * 1991-07-15 1992-06-23 Texas Instruments Incorporated Condition-responsive device with diaphragm protection means
DE19801251C2 (de) * 1998-01-15 2002-01-24 Inter Control Koehler Hermann Thermisches Schaltelement
US6629499B1 (en) * 2002-03-12 2003-10-07 The United States Of America As Represented By The Secretary Of The Navy Temperature activated mechanical timer
CN100446148C (zh) * 2005-11-07 2008-12-24 徐佳义 手动复位温控器
ES2428507T3 (es) 2006-01-12 2013-11-08 Georg Emken Microconmutador eléctrico
JP6062815B2 (ja) * 2012-08-09 2017-01-18 カルソニックカンセイ株式会社 温度スイッチ及び流体加熱装置
JP6157856B2 (ja) * 2013-01-10 2017-07-05 カルソニックカンセイ株式会社 熱感知装置
WO2016077850A1 (en) * 2014-11-21 2016-05-26 Antonyan, Armen Bimetallic thermal relay

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE406458A (de) * 1933-12-20
US2703231A (en) * 1951-04-05 1955-03-01 Robertshaw Fulton Controls Co Snap-action device
DE1060456B (de) * 1956-09-06 1959-07-02 Licentia Gmbh Elektrischer Thermobimetallschalter
US3139500A (en) * 1960-03-02 1964-06-30 Wilcolator Co Thermally actuated double throw switch mechanism
GB1169229A (en) * 1966-09-01 1969-10-29 Texas Instruments Italia Spa A Thermally Actuated Device Providing a Predetermined Series of Step Displacements of a Drive Element as a Function of Temperature
US4325047A (en) * 1980-04-09 1982-04-13 Aisin Seiki Kabushiki Kaisha Temperature responsive switch
US4367452A (en) * 1982-02-11 1983-01-04 Elmwood Sensors, Inc. Thermostatic switch construction
US4499448A (en) * 1983-02-18 1985-02-12 Grable Jack W Electric circuit interrupter

Also Published As

Publication number Publication date
US4914415A (en) 1990-04-03
ATE98399T1 (de) 1993-12-15
WO1988006799A1 (fr) 1988-09-07
US4942381A (en) 1990-07-17
FR2611980A1 (fr) 1988-09-09
DE3886141T2 (de) 1994-06-23
EP0305436A1 (de) 1989-03-08
JPH01502790A (ja) 1989-09-21
FR2611980B1 (fr) 1995-06-09
DE3886141D1 (de) 1994-01-20

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