EP1533822B1 - Microswitch with alteration via the leaf-spring - Google Patents

Microswitch with alteration via the leaf-spring Download PDF

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Publication number
EP1533822B1
EP1533822B1 EP04354030A EP04354030A EP1533822B1 EP 1533822 B1 EP1533822 B1 EP 1533822B1 EP 04354030 A EP04354030 A EP 04354030A EP 04354030 A EP04354030 A EP 04354030A EP 1533822 B1 EP1533822 B1 EP 1533822B1
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EP
European Patent Office
Prior art keywords
switch
micro
microswitch
contactor
blade
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.)
Active
Application number
EP04354030A
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German (de)
French (fr)
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EP1533822A1 (en
Inventor
Stéphane Schneider Electric Ind. SAS Collot
Bernard Schneider Electric Ind. SAS Truchet
Christian Schneider Electric Ind. SAS Roux
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Crouzet Automatismes SAS
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Crouzet Automatismes SAS
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Priority to SI200430063T priority Critical patent/SI1533822T1/en
Publication of EP1533822A1 publication Critical patent/EP1533822A1/en
Application granted granted Critical
Publication of EP1533822B1 publication Critical patent/EP1533822B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0012—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for converting normally open to normally closed switches and vice versa
    • 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
    • H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
    • 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
    • H01H5/18—Energy stored by deformation of elastic members by flexing of blade springs

Definitions

  • the invention relates to a microswitch, that is to say a device of reduced dimensions ensuring a switching function of an electric current.
  • microswitches are frequently used in many fields of activity using switching functions of an electric current, such as automotive or household appliances. Depending on the function performed, these may be contactors that establish an electric current when they are actuated, breakers that cut an electric current when they are actuated, or inverters that switch two electric currents depending on whether they are in their state of rest or their actuated state.
  • the invention relates to microswitches comprising a housing consisting of a base part, from which project several electrical terminals and a lid part, not shown; housing in which is placed a sudden break mechanism which provides the switching function corresponding to a contactor, a breaker or an inverter depending on the application.
  • a microswitch according to the state of the art is for example described in the documents DE19834888, US5181603 or EP0789373.
  • the invention therefore aims to overcome the disadvantages of microswitches according to the state of the art, allowing a later functional differentiation in the manufacturing process, and a lower structural differentiation, thanks to a large number of common parts devices ensuring the different functions.
  • the subject of the invention is an electric microswitch according to the first claim.
  • the functional parameterization means comprise a single lug or comprise no lug so that the microswitch performs the function of switch, contactor or inverter.
  • the functional parameterization means comprise two lugs intended to bear respectively on the first and the second fixed stops, at least one of the two being removed to allow the microswitch to function as a contactor, as a breaker or as inverter.
  • At least one electronic component is mounted on the surface of the microswitch according to the invention or housed inside the microswitch according to the invention, and electrically connected directly between two adjacent terminals.
  • FIG. 1 shows a first embodiment of a microswitch according to the invention.
  • the microswitch comprises a housing comprising a base portion (10) from which a plurality of electrical terminals (11, 12, 14) and a cover portion (20) projecting, not shown, protrude.
  • a snap mechanism is placed in the housing and provides the switching function corresponding to a contactor, a breaker or an inverter depending on the application.
  • This switching mechanism conventionally comprises a flexible conductive blade (40) having a tongue (45) subjected to substantially longitudinal prestressing. Depending on the position of the microswitch, the blade makes it possible to establish an electrical connection between a terminal (11) and one of the two other terminals (12) and (14).
  • the particular structure of the microswitch shown in Figure 1 is the subject of a separate patent application but is not exhaustive, the invention can be implemented in any type of microswitch according to the prior art.
  • the conductive blade (40) comprises a movable portion provided with one or more contact zones that may optionally have undergone a particular surface treatment, or even be provided with attached contact pieces, the contact zone or zones being intended to enter. in mechanical and electrical contact with one or more fixed contacts electrically connected to the terminals (12, 14) projecting from the base housing part.
  • the conductive blade (40) will be provided with a contact zone for establishing a mechanical and electrical contact with a first connected fixed contact. electrically to a first terminal (12) projecting from the base housing part (10), and a contact area for making mechanical and electrical contact with a second contact electrically connected to a second terminal (14).
  • the flexible blade (40) will carry only one contact zone on one of its faces, intended to establish a mechanical and electrical contact with a fixed contact electrically connected to one of the terminals (12, 14), respectively in the rest position and the switched position of the microswitch.
  • Figures 1 to 3 show a microswitch according to the invention providing a switch function.
  • the movable portion of the flexible conductive blade (40) is intended to come into mechanical and electrical contact only with a single fixed contact (72) electrically connected to one of the terminals (12).
  • the movable portion of the flexible conductive blade is provided with an insert contact piece (49) intended to come into mechanical and electrical contact with the fixed contact (72), according to a method of preferential embodiment. Since the flexible conductive blade (40) is not intended to make contact with the other terminal (14), its surface closest to the base housing part is neither treated nor provided with a piece of reported contact. Similarly, there is no fixed contact connected to the second terminal (14).
  • the base housing portions (10) and the cover housing portion (20) are both provided with fixed stops (16, 26), and the flexible conductive blade (40) of the snap mechanism includes functional setting means cooperating with the stop (16) of the base housing part (10) and the stop (26) of the cover housing part (20) to allow the microswitch to function as an inverter, breaker or contactor.
  • Each abutment (16, 26) is intended to cooperate with a lug (41, 42) present on the conductive blade and is designed - in such a way that when the lug (41, 42) bears against the abutment (16, 26), there can be no electrical contact between the flexible conductive blade (40) and a conductive portion of a terminal (14, 12) which would be close to the considered housing part (10, 20).
  • the functional parameterization means comprise two lugs (41, 42), the first (41) intended to cooperate with the first fixed stop (16) and the second (42) intended to cooperate with the second fixed stop (26).
  • the simultaneous presence of two lugs (41, 42) would prevent the conductive blade to make contact with the corresponding terminals (14, 12), and the device could no longer provide function.
  • one of the pins (41, 42) of the functional parameterization means is removed when the microswitch is to function as a switch or as a contactor, the two lugs being removed if the microswitch is to function as inverter.
  • the functional parameterization means of the device represented in FIGS. 1 to 4 comprise a lug (41) which bears against the fixed stop (16) of the base housing part (10) while preventing and the conductive blade (40) to establish a possible electrical contact with the terminal (14).
  • the functional parameterization means do not comprise a second lug (42) intended to bear against the fixed abutment (26) of the lid-forming housing part (20), so that the insert contact piece (49) ) on the movable portion of the flexible conductive blade (40) can come into mechanical and electrical contact with the fixed contact (72).
  • the microswitch in the rest position thus provides an electrical connection between the terminals (11) and (12), which connection is interrupted when the microswitch switches to the switched position.
  • the microswitch provides a good breaker function.
  • base housing parts (10) and cover housing parts (20) of identical shape regardless of the function provided by the microswitch.
  • the functional differentiation is effected at the level of the conductive blade (40) by removing one of the lugs (41, 42) to respectively provide the function of contactor or breaker or by removing the two lugs (41, 42 ) to perform the function of inverter.
  • Each contact zone can be treated or provided with a reported contact piece, traditionally, either on the conductive blade (40) or on the fixed parts electrically connected to the terminals (12, 14).
  • the invention makes it possible to have a single model of base housing part (10) having a fixed stop (16), a single model cover housing portion (20) also having a fixed stop (26) and a single model of snap mechanism comprising a flexible conductive blade (40) having two lugs (41, 42), the functional differentiation occurring late during the manufacturing process by removing one of the pins or the two pins of the conductive blade (40).
  • a single model of base housing part (10) having a fixed stop (16)
  • a single model of snap mechanism comprising a flexible conductive blade (40) having two lugs (41, 42), the functional differentiation occurring late during the manufacturing process by removing one of the pins or the two pins of the conductive blade (40).
  • microswitches are generally used in conjunction with electrical or electronic components to form more complex functions.
  • the dimensions of the microswitches make it possible to mount the components directly on the surface of the housing or inside the housing, by electrically connecting them to the terminals.
  • microswitches according to the prior art have differentiated bases according to the function provided. In particular, there are only two terminals protruding when the function of contactor or breaker is ensured.
  • the microswitch is connected to its application by the terminals (11 and 14) or (21 and 14) or (11 and 12) or (11, 12 and 14).
  • Figures 5a, 6a, 7a and 8a show schematically a microswitch according to the invention on which is mounted on the surface or housed inside a single electronic component electrically connected between two adjacent terminals.
  • Figures 5b, 6b, 7b and 8b show the corresponding electronic scheme when the component is a resistor. Note that the three terminals (11, 12, 14) are used to realize the assembly electronics, but not all are intended to be connected to external elements.
  • Figures 9a and 10a serve to illustrate the possibilities of mounting on the surface or to house within a microswitch according to the invention two electronic components.
  • the microswitch provides the function of breaker
  • FIGS. 11c and 12c show examples in which non-linear components are surface-mounted or housed inside the microswitch according to the invention.
  • Figures 5 to 12 are of course not limiting but allow to illustrate by way of example the many possibilities offered by microswitches according to the invention to produce electronic circuits by surface mounting or inner housing components directly electrically connected on the adjacent terminals (11, 12, 14) since they are always present regardless of the function provided by the microswitch.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Keying Circuit Devices (AREA)
  • Breakers (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Saccharide Compounds (AREA)

Abstract

The micro-switch has a fixed stopper (16) to act as a support point to a pin (41). The stopper (16) and another stopper prevent a flexible conductor blade (40) from establishing an electrical connection with terminals (14, 12), respectively. The blade has a functional parametering unit having two pins (41) that co-operate with respective stoppers (16) to permit the micro-switch to function as inverter, contact breaker or contactor.

Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

L'invention est relative à un minirupteur, c'est à dire un dispositif de dimensions réduites assurant une fonction de commutation d'un courant électrique.The invention relates to a microswitch, that is to say a device of reduced dimensions ensuring a switching function of an electric current.

ETAT DE LA TECHNIQUESTATE OF THE ART

Les minirupteurs sont fréquemment utilisés dans de nombreux domaines d'activité ayant recours à des fonctions de commutation d'un courant électrique, comme la construction automobile ou l'électroménager. Selon la fonction remplie, il peut s'agir de dispositifs contacteurs qui établissent un courant électrique lorsqu'ils sont actionnés, de dispositifs rupteurs qui coupent un courant électrique lorsqu'ils sont actionnés ou bien d'inverseurs qui commutent deux courants électriques selon qu'ils sont dans leur état de repos ou leur état actionné.The microswitches are frequently used in many fields of activity using switching functions of an electric current, such as automotive or household appliances. Depending on the function performed, these may be contactors that establish an electric current when they are actuated, breakers that cut an electric current when they are actuated, or inverters that switch two electric currents depending on whether they are in their state of rest or their actuated state.

L'invention concerne les minirupteurs comprenant un boîtier composé d'une partie faisant base, à partir de laquelle font saillie plusieurs bornes électriques et d'une partie faisant couvercle, non représentée ; boîtier dans lequel est placé un mécanisme de rupture brusque qui assure la fonction de commutation correspondant à un contacteur, à un rupteur ou à un inverseur selon l'application. Un tel minirupteur selon l'état de la technique est par exemple décrit dans les documents DE19834888, US5181603 ou EP0789373.The invention relates to microswitches comprising a housing consisting of a base part, from which project several electrical terminals and a lid part, not shown; housing in which is placed a sudden break mechanism which provides the switching function corresponding to a contactor, a breaker or an inverter depending on the application. Such a microswitch according to the state of the art is for example described in the documents DE19834888, US5181603 or EP0789373.

Dans les minirupteurs existants, la différentiation fonctionnelle est effectuée tôt dans le processus de fabrication. En particulier il arrive fréquemment que certaines des bornes faisant saillie de la partie du boîtier faisant base soient supprimées. De la même manière il est fréquent que les mécanismes de rupture brusque soient différents selon la fonction que le minirupteur doit assurer.In existing microswitches, functional differentiation is performed early in the manufacturing process. In particular, it frequently happens that some of the terminals protruding from the base part of the housing are removed. In the same way it is common that the mechanisms of sudden failure are different depending on the function that the microswitch must provide.

EXPOSE DE L'INVENTIONSUMMARY OF THE INVENTION

L'invention vise donc à remédier aux inconvénients des minirupteurs selon l'état de la technique, en permettant une différentiation fonctionnelle plus tardive dans le processus de fabrication, ainsi qu'une moindre différentiation structurelle, grâce à un grand nombre de pièces communes aux dispositifs assurant les différentes fonctions.The invention therefore aims to overcome the disadvantages of microswitches according to the state of the art, allowing a later functional differentiation in the manufacturing process, and a lower structural differentiation, thanks to a large number of common parts devices ensuring the different functions.

A cet effet, l'invention a pour objet un minirupteur électrique selon la première revendication.For this purpose, the subject of the invention is an electric microswitch according to the first claim.

Selon des modes de réalisation particuliers, les moyens de paramétrage fonctionnel comprennent un unique ergot ou ne comprennent aucun ergot afin que le minirupteur assure la fonction de rupteur, de contacteur ou d'inverseur.According to particular embodiments, the functional parameterization means comprise a single lug or comprise no lug so that the microswitch performs the function of switch, contactor or inverter.

Selon un mode particulièrement avantageux, les moyens de paramétrage fonctionnel comprennent deux ergots destinés à prendre appui sur respectivement la première et la seconde butées fixes, l'un au moins des deux étant supprimé afin de permettre que le minirupteur fonctionne comme contacteur, comme rupteur ou comme inverseur.According to a particularly advantageous mode, the functional parameterization means comprise two lugs intended to bear respectively on the first and the second fixed stops, at least one of the two being removed to allow the microswitch to function as a contactor, as a breaker or as inverter.

Optionnellement, au moins un composant électronique est monté sur la surface du minirupteur selon l'invention ou logé à l'intérieur du minirupteur selon l'invention, et relié électriquement directement entre deux bornes adjacentes.Optionally, at least one electronic component is mounted on the surface of the microswitch according to the invention or housed inside the microswitch according to the invention, and electrically connected directly between two adjacent terminals.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre de modes particuliers de réalisation de l'invention, donnés à titre d'exemples non limitatifs, et représentés aux dessins annexés sur lesquels :

  • la figure 1 représente une vue en élévation d'un minirupteur selon l'invention;
  • la figure 2 représente une vue de dessus d'un minirupteur selon l'invention sans partie de boîtier formant couvercle
  • la figure 3 représente une coupe partielle d'un minirupteur selon l'invention en position de repos;
  • la figure 4 représente une coupe partielle d'un minirupteur selon l'invention en position commutée;
  • les figures 5a à 12c représentent des exemples de montages électroniques qu'il est possible de réaliser avec des composants montés en surface ou logé à l'intérieur du minirupteur selon l'invention
Other advantages and features will emerge more clearly from the following description of particular embodiments of the invention, given by way of non-limiting examples, and represented in the accompanying drawings in which:
  • Figure 1 shows an elevational view of a microswitch according to the invention;
  • FIG. 2 represents a view from above of a microswitch according to the invention without a housing part forming a cover
  • Figure 3 shows a partial section of a microswitch according to the invention in the rest position;
  • Figure 4 shows a partial section of a microswitch according to the invention in switched position;
  • FIGS. 5a to 12c show examples of electronic assemblies that can be realized with components mounted on the surface or housed inside the microswitch according to the invention

DESCRIPTION DETAILLEE D'UN MODE DE REALISATIONDETAILED DESCRIPTION OF AN EMBODIMENT

La Figure 1 représente un premier mode de réalisation d'un minirupteur selon l'invention. Le minirupteur comprend un boîtier composé d'une partie faisant base (10), à partir de laquelle font saillie plusieurs bornes électriques (11, 12, 14) et d'une partie faisant couvercle (20), non représentée.Figure 1 shows a first embodiment of a microswitch according to the invention. The microswitch comprises a housing comprising a base portion (10) from which a plurality of electrical terminals (11, 12, 14) and a cover portion (20) projecting, not shown, protrude.

Un mécanisme de rupture brusque est placé dans le boîtier et assure la fonction de commutation correspondant à un contacteur, à un rupteur ou à un inverseur selon l'application. Ce mécanisme de commutation comprend de façon classique une lame conductrice souple (40) comportant une langue (45) soumise à une précontrainte sensiblement longitudinale. Selon la position du minirupteur, la lame permet d'établir une liaison électrique entre une borne (11) et l'une des deux autres bornes (12) et (14). La structure particulière du minirupteur représentée sur la Figure 1 fait l'objet d'une demande de brevet séparée mais n'est pas limitative, l'invention pouvant être mise en oeuvre dans tout type de minirupteur selon l'art antérieur.A snap mechanism is placed in the housing and provides the switching function corresponding to a contactor, a breaker or an inverter depending on the application. This switching mechanism conventionally comprises a flexible conductive blade (40) having a tongue (45) subjected to substantially longitudinal prestressing. Depending on the position of the microswitch, the blade makes it possible to establish an electrical connection between a terminal (11) and one of the two other terminals (12) and (14). The particular structure of the microswitch shown in Figure 1 is the subject of a separate patent application but is not exhaustive, the invention can be implemented in any type of microswitch according to the prior art.

De façon classique la lame conductrice (40) comporte une partie mobile munie d'une ou plusieurs zones de contact pouvant optionnellement avoir subi un traitement de surface particulier voire être munie de pièces de contact rapportées, la ou les zones de contact étant destinées à entrer en contact mécanique et électrique avec un ou plusieurs contacts fixes reliés électriquement aux bornes (12, 14) faisant saillie de la partie de boîtier formant base.Conventionally, the conductive blade (40) comprises a movable portion provided with one or more contact zones that may optionally have undergone a particular surface treatment, or even be provided with attached contact pieces, the contact zone or zones being intended to enter. in mechanical and electrical contact with one or more fixed contacts electrically connected to the terminals (12, 14) projecting from the base housing part.

Ainsi, si le minirupteur doit assurer une fonction d'inverseur entre une position commutée et une position de repos, la lame conductrice (40) sera munie d'une zone de contact destinée à établir un contact mécanique et électrique avec un premier contact fixe relié électriquement à une première borne (12) faisant saillie de la partie de boîtier formant base (10), et d'une zone de contact destinée à établir un contact mécanique et électrique avec un second contact relié électriquement à une seconde borne (14). Si le minirupteur assure une fonction de rupteur ou de contacteur afin respectivement d'interrompre ou d'établir une connexion électrique en position actionnée, la lame souple (40) ne portera qu'une seule zone de contact sur l'une de ses faces, destinée à établie un contact mécanique et électrique avec un contact fixe relié électriquement à l'une des bornes (12, 14), respectivement dans la position de repos et la position commutée du minirupteur.Thus, if the microswitch is to provide an inverter function between a switched position and a rest position, the conductive blade (40) will be provided with a contact zone for establishing a mechanical and electrical contact with a first connected fixed contact. electrically to a first terminal (12) projecting from the base housing part (10), and a contact area for making mechanical and electrical contact with a second contact electrically connected to a second terminal (14). If the microswitch provides a switch or contactor function respectively to interrupt or establish an electrical connection in the actuated position, the flexible blade (40) will carry only one contact zone on one of its faces, intended to establish a mechanical and electrical contact with a fixed contact electrically connected to one of the terminals (12, 14), respectively in the rest position and the switched position of the microswitch.

Les Figures 1 à 3 représentent un minirupteur selon l'invention assurant une fonction de rupteur. Ainsi, la partie mobile de la lame conductrice souple (40) n'est destinée à entrer en contact mécanique et électrique qu'avec un seul contact fixe (72) relié électriquement à l'une des bornes (12). Sur les figures 1 et 3, on voit que la partie mobile de la lame conductrice souple est munie d'une pièce de contact rapportée (49) destinée à entrer en contact mécanique et électrique avec le contact fixe (72), selon un mode de réalisation préférentiel. Puisque la lame conductrice souple (40) n'est pas destinée à établir un contact avec l'autre borne (14), sa surface la plus proche de la partie de boîtier formant base n'est ni traitée ni munie d'une pièce de contact rapportée. De même, il n'y a pas de contact fixe relié à la seconde borne (14).Figures 1 to 3 show a microswitch according to the invention providing a switch function. Thus, the movable portion of the flexible conductive blade (40) is intended to come into mechanical and electrical contact only with a single fixed contact (72) electrically connected to one of the terminals (12). In FIGS. 1 and 3, it can be seen that the movable portion of the flexible conductive blade is provided with an insert contact piece (49) intended to come into mechanical and electrical contact with the fixed contact (72), according to a method of preferential embodiment. Since the flexible conductive blade (40) is not intended to make contact with the other terminal (14), its surface closest to the base housing part is neither treated nor provided with a piece of reported contact. Similarly, there is no fixed contact connected to the second terminal (14).

Selon l'invention, la parties de boîtier formant base (10) et la partie de boîtier formant couvercle (20) sont toutes deux munies de butées fixes (16, 26), et la lame conductrice souple (40) du mécanisme de rupture brusque comporte des moyens de paramétrage fonctionnel coopérant avec la butée (16) de la partie de boîtier formant base (10) et la butée (26) de la partie de boîtier formant couvercle (20) afin de permettre au minirupteur de fonctionner comme inverseur, rupteur ou contacteur. Chaque butée (16, 26) est destinée à coopérer avec un ergot (41, 42) présent sur la lame conductrice et est conçue - de telle manière que lorsque l'ergot (41, 42) vient en appui sur la butée (16, 26), il ne peut y avoir de contact électrique entre la lame conductrice souple (40) et une partie conductrice d'une borne (14, 12) qui serait proche de la partie de boîtier considérée (10, 20).According to the invention, the base housing portions (10) and the cover housing portion (20) are both provided with fixed stops (16, 26), and the flexible conductive blade (40) of the snap mechanism includes functional setting means cooperating with the stop (16) of the base housing part (10) and the stop (26) of the cover housing part (20) to allow the microswitch to function as an inverter, breaker or contactor. Each abutment (16, 26) is intended to cooperate with a lug (41, 42) present on the conductive blade and is designed - in such a way that when the lug (41, 42) bears against the abutment (16, 26), there can be no electrical contact between the flexible conductive blade (40) and a conductive portion of a terminal (14, 12) which would be close to the considered housing part (10, 20).

Ainsi les moyens de paramétrage fonctionnel comprennent deux ergots (41, 42), le premier (41) destiné à coopérer avec la première butée fixe (16) et le second (42) destiné à coopérer avec la seconde butée fixe (26). Naturellement, la présence simultanée de deux ergots (41, 42) empêcherait la lame conductrice d'établir un contact avec les bornes correspondantes (14, 12), et le dispositif ne pourrait plus assurer de fonction. C'est pourquoi l'un des ergots (41, 42) des moyens de paramétrage fonctionnel est supprimé lorsque le minirupteur doit fonctionner comme rupteur ou comme contacteur, les deux ergots étant supprimés si le minirupteur doit fonctionner comme inverseur.Thus the functional parameterization means comprise two lugs (41, 42), the first (41) intended to cooperate with the first fixed stop (16) and the second (42) intended to cooperate with the second fixed stop (26). Naturally, the simultaneous presence of two lugs (41, 42) would prevent the conductive blade to make contact with the corresponding terminals (14, 12), and the device could no longer provide function. This is why one of the pins (41, 42) of the functional parameterization means is removed when the microswitch is to function as a switch or as a contactor, the two lugs being removed if the microswitch is to function as inverter.

A titre d'exemple, les moyens de paramétrage fonctionnel du dispositif représenté sur les Figures 1 à 4 comprennent un ergot (41) qui vient s'appuyer sur la butée fixe (16) de la partie de boîtier formant base (10) en empêchant ainsi la lame conductrice (40) d'établir un éventuel contact électrique avec la borne (14). En revanche les moyens de paramétrage fonctionnel ne comprennent pas de second ergot (42) destiné à s'appuyer sur la butée fixe (26) de la partie de boîtier formant couvercle (20), de telle sorte que la pièce de contact rapportée (49) se trouvant sur la partie mobile de la lame conductrice souple (40) peut venir établir un contact mécanique et électrique avec le contact fixe (72). Le minirupteur en position de repos assure donc une liaison électrique entre les bornes (11) et (12), liaison qui est interrompue lorsque le minirupteur passe en position commutée. Le minirupteur assure bien une fonction de rupteur.By way of example, the functional parameterization means of the device represented in FIGS. 1 to 4 comprise a lug (41) which bears against the fixed stop (16) of the base housing part (10) while preventing and the conductive blade (40) to establish a possible electrical contact with the terminal (14). On the other hand, the functional parameterization means do not comprise a second lug (42) intended to bear against the fixed abutment (26) of the lid-forming housing part (20), so that the insert contact piece (49) ) on the movable portion of the flexible conductive blade (40) can come into mechanical and electrical contact with the fixed contact (72). The microswitch in the rest position thus provides an electrical connection between the terminals (11) and (12), which connection is interrupted when the microswitch switches to the switched position. The microswitch provides a good breaker function.

Il est ainsi possible selon l'invention d'utiliser des parties de boîtier formant base (10) et des parties de boîtier formant couvercle (20) de forme identique quelle que soit la fonction assurée par le minirupteur. Il est en particulier possible d'avoir toujours trois bornes (11, 12, 14) faisant saillie de la partie de boîtier formant base (10). La différentiation fonctionnelle s'effectue au niveau de la lame conductrice (40) en supprimant l'un des ergots (41, 42) afin d'assurer respectivement la fonction de contacteur ou de rupteur ou bien en supprimant les deux ergots (41, 42) afin d'assurer la fonction d'inverseur. Chaque zone de contact pouvant être traitée ou munie d'une pièce de contact rapportée, de façon traditionnelle, que ce soit sur la lame conductrice (40) ou sur les parties fixes reliées électriquement aux bornes (12, 14).It is thus possible according to the invention to use base housing parts (10) and cover housing parts (20) of identical shape regardless of the function provided by the microswitch. In particular, it is always possible to have three terminals (11, 12, 14) protruding from the base housing part (10). The functional differentiation is effected at the level of the conductive blade (40) by removing one of the lugs (41, 42) to respectively provide the function of contactor or breaker or by removing the two lugs (41, 42 ) to perform the function of inverter. Each contact zone can be treated or provided with a reported contact piece, traditionally, either on the conductive blade (40) or on the fixed parts electrically connected to the terminals (12, 14).

Par conséquent pour une famille de minirupteurs assurant les fonctions de rupteur, de contacteur ou d'inverseur, l'invention permet d'avoir un modèle unique de partie de boîtier formant base (10) possédant une butée fixe (16), un modèle unique de partie de boîtier formant couvercle (20) possédant également une butée fixe (26) et un modèle unique de mécanisme de rupture brusque comportant une lame conductrice souple (40) possédant deux ergots (41, 42), la différentiation fonctionnelle s'effectuant tardivement lors du processus de fabrication en supprimant l'un des ergots ou les deux ergots de la lame conductrice (40). De cette manière l'industrialisation du produit est simplifiée, le nombre de pièces différentes est réduit et par conséquent les coûts de gestion de ces pièces l'est également.Therefore, for a family of microswitches providing the functions of switch, contactor or inverter, the invention makes it possible to have a single model of base housing part (10) having a fixed stop (16), a single model cover housing portion (20) also having a fixed stop (26) and a single model of snap mechanism comprising a flexible conductive blade (40) having two lugs (41, 42), the functional differentiation occurring late during the manufacturing process by removing one of the pins or the two pins of the conductive blade (40). In this way the industrialization of the product is simplified, the number of different parts is reduced and therefore the management costs of these parts is also reduced.

L'invention permet également d'avoir un perfectionnement des systèmes actuels utilisant des minirupteurs. En effet, les minirupteurs sont généralement utilisés conjointement à des composants électriques ou électroniques afin de constituer des fonctions plus complexes. Les dimensions des minirupteurs permettent de monter directement les composants sur la surface du boîtier ou à l'intérieur du boîtier, en les reliant électriquement aux bornes. Or les minirupteurs selon l'art antérieur possèdent des bases différenciées selon la fonction assurée. En particulier, il n'y a que deux bornes faisant saillie lorsque la fonction de contacteur ou de rupteur est assurée. Le fait d'avoir à disposition les trois bornes (11, 12, 14), quelle que soit la fonction assurée par le minirupteur et y compris dans le cas ou l'une d'entre elle n'est pas utilisée et donc est isolée électriquement, permet de réaliser un très grand nombre de fonctions électroniques par simple montage en surface ou par logement interne de composants reliés électriquement entre les bornes (11) et (14) et/ou les bornes (12) et (14). Le minirupteur étant raccordé à son application par les bornes (11 et 14) ou (21 et 14) ou (11 et 12) ou (11, 12 et 14).The invention also provides an improvement of current systems using microswitches. Indeed, microswitches are generally used in conjunction with electrical or electronic components to form more complex functions. The dimensions of the microswitches make it possible to mount the components directly on the surface of the housing or inside the housing, by electrically connecting them to the terminals. However, microswitches according to the prior art have differentiated bases according to the function provided. In particular, there are only two terminals protruding when the function of contactor or breaker is ensured. The fact of having available the three terminals (11, 12, 14), regardless of the function provided by the microswitch and including in the case where one of them is not used and therefore is isolated electrically, allows to perform a very large number of electronic functions simply by surface mounting or internal housing components electrically connected between the terminals (11) and (14) and / or the terminals (12) and (14). The microswitch is connected to its application by the terminals (11 and 14) or (21 and 14) or (11 and 12) or (11, 12 and 14).

Ainsi les Figures 5a, 6a, 7a et 8a représentent schématiquement un minirupteur selon l'invention sur lequel est monté en surface ou logé à l'intérieur un unique composant électronique relié électriquement entre deux bornes adjacentes. Les Figures 5b, 6b, 7b et 8b représentent le schéma électronique correspondant lorsque le composant est une résistance. On remarque que les trois bornes (11, 12, 14) sont utilisées pour réaliser le montage électronique, mais que toutes ne sont pas destinées à être connectées à des éléments extérieurs.Thus Figures 5a, 6a, 7a and 8a show schematically a microswitch according to the invention on which is mounted on the surface or housed inside a single electronic component electrically connected between two adjacent terminals. Figures 5b, 6b, 7b and 8b show the corresponding electronic scheme when the component is a resistor. Note that the three terminals (11, 12, 14) are used to realize the assembly electronics, but not all are intended to be connected to external elements.

Les Figures 9a et 10a servent à illustrer les possibilités de monter sur la surface ou de loger à l'intérieur d'un minirupteur selon l'invention deux composants électroniques. Dans les deux exemples représentés, le minirupteur assure la fonction de rupteurFigures 9a and 10a serve to illustrate the possibilities of mounting on the surface or to house within a microswitch according to the invention two electronic components. In the two examples shown, the microswitch provides the function of breaker

Enfin les Figures 11c et 12c représentent des exemples où des composants non linéaires, sont montés en surface ou logés à l'intérieur du minirupteur selon l'invention.Finally, FIGS. 11c and 12c show examples in which non-linear components are surface-mounted or housed inside the microswitch according to the invention.

Les Figures 5 à 12 ne sont naturellement pas limitatives mais permettent d'illustrer à titre d'exemple les très nombreuses possibilités qu'offrent les minirupteurs selon l'invention de réaliser des circuits électroniques par montage en surface ou logement interne de composants directement reliés électriquement sur les bornes adjacentes (11, 12, 14) puisque celles-ci sont toujours présentes quelle que soit la fonction assurée par le minirupteur.Figures 5 to 12 are of course not limiting but allow to illustrate by way of example the many possibilities offered by microswitches according to the invention to produce electronic circuits by surface mounting or inner housing components directly electrically connected on the adjacent terminals (11, 12, 14) since they are always present regardless of the function provided by the microswitch.

Claims (5)

  1. Electric micro-switch comprising a case including a part of the case forming a cover (20) and a part of the case forming a base (10) from which several electrical terminals (11, 12, 14) are salient, a high-speed breaking mechanism fitted in the case and comprising a conducting blade (40), and a push-rod (30) mounted slidingly through the part of the case forming the cover (20) so as to actuate the breaking mechanism, characterized in that
    - the part of the case forming the base (10) comprises a first fixed stop (16) designed to act as bearing point for a spigot (41) that can be present on the flexible blade (40) so as to prevent the latter from making an electrical connection with a first terminal (14),
    - the part of the case forming the cover (20) comprises a second fixed stop (26) designed to act as bearing point for a second spigot (42) that can be present on the flexible blade (40) so as to prevent the latter from making an electrical connection with a second terminal (12), and
    - the absence or presence of the first and/or second spigot of the flexible blade (40) are functional parameter setting means operating in conjunction with the first and second fixed stops (16, 26) to enable the micro-switch to operate as a changeover switch, a contact breaker or a contactor.
  2. Electric micro-switch according to claim 1, characterized in that the functional parameter setting means comprise a single spigot (41 or 42) that presses against one of the first or second fixed stops (16 or 26) in such a way that the micro-switch operates as a contact breaker or as a contactor.
  3. Electric micro-switch according to claim 1, characterized in that the functional parameter setting means do not comprise any spigots so that the blade (40) can make a contact with the first and second terminal (14, 12) in such a way that the micro-switch operates as a changeover switch.
  4. Electric micro-switch according to claim 1, characterized in that the functional parameter setting means comprise two spigots (41, 42) designed to press respectively on the first and second fixed stops (16, 26), at least one of the two spigots (41, 42) being eliminated to enable the micro-switch to operate as a contactor, a contact breaker or a changeover switch.
  5. Micro-switch according to one of the foregoing claims, characterized in that at least one electronic component is mounted on the surface of or housed inside the case and electrically connected directly between two adjacent terminals (11 and 14) and/or (12 and 14).
EP04354030A 2003-11-20 2004-09-06 Microswitch with alteration via the leaf-spring Active EP1533822B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200430063T SI1533822T1 (en) 2003-11-20 2004-09-06 Microswitch with alteration via the leaf-spring

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0313599A FR2862808B1 (en) 2003-11-20 2003-11-20 MINIMIZER WITH BLADE DIFFERENTIATION
FR0313599 2003-11-20

Publications (2)

Publication Number Publication Date
EP1533822A1 EP1533822A1 (en) 2005-05-25
EP1533822B1 true EP1533822B1 (en) 2006-06-07

Family

ID=34430030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04354030A Active EP1533822B1 (en) 2003-11-20 2004-09-06 Microswitch with alteration via the leaf-spring

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EP (1) EP1533822B1 (en)
AT (1) ATE329360T1 (en)
DE (1) DE602004001118T2 (en)
ES (1) ES2264555T3 (en)
FR (1) FR2862808B1 (en)
SI (1) SI1533822T1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203153409U (en) * 2013-01-28 2013-08-28 美的集团股份有限公司 Over-pressure protection device of electric pressure cooker and electric pressure cooker employing same
CN103762114B (en) * 2013-11-11 2016-09-07 仝达机电工业（惠州）有限公司 A kind of microswitch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4963475U (en) * 1972-09-14 1974-06-04
GB9602320D0 (en) * 1996-02-06 1996-04-03 Burgess Micro Switch Co Ltd Electric switch
DE19834888A1 (en) * 1998-08-03 2000-02-10 Ems Elektro Mechanische Schalt Microswitch with multiple function switch tongue for use as snap microswitch
FR2811470B1 (en) * 2000-07-05 2003-02-07 Chauvin Arnoux ELECTROMAGNETIC RELAY COMPRISING A BLOCK FOR THE HOUSING OF CONTACT COMPONENTS AND A CONTROL SLIDER OF MOBILE CONTACTS

Also Published As

Publication number Publication date
FR2862808B1 (en) 2006-01-13
ATE329360T1 (en) 2006-06-15
FR2862808A1 (en) 2005-05-27
SI1533822T1 (en) 2006-12-31
EP1533822A1 (en) 2005-05-25
DE602004001118T2 (en) 2006-11-23
ES2264555T3 (en) 2007-01-01
DE602004001118D1 (en) 2006-07-20

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