EP1693868B1 - Apparatus for controlling the change of state of a circuit - Google Patents
Apparatus for controlling the change of state of a circuit Download PDFInfo
- Publication number
- EP1693868B1 EP1693868B1 EP06101483A EP06101483A EP1693868B1 EP 1693868 B1 EP1693868 B1 EP 1693868B1 EP 06101483 A EP06101483 A EP 06101483A EP 06101483 A EP06101483 A EP 06101483A EP 1693868 B1 EP1693868 B1 EP 1693868B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- magnet
- electrical circuit
- control member
- box
- circuit
- 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.)
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Links
- 230000005291 magnetic effect Effects 0.000 claims abstract description 10
- 239000003302 ferromagnetic material Substances 0.000 claims description 4
- 238000007649 pad printing Methods 0.000 claims description 4
- 238000007650 screen-printing Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 21
- 239000012799 electrically-conductive coating Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
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
- H01H5/02—Energy stored by the attraction or repulsion of magnetic parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2215/00—Tactile feedback
- H01H2215/034—Separate snap action
- H01H2215/042—Permanent magnets
Definitions
- the present invention relates to a device for controlling the change of state of an electric circuit, which makes it possible to pass it from an activated state to an inactivated state, or vice versa.
- This device finds a particular application in the automotive industry, without however that it is limiting.
- It can be used especially on the dashboard of a vehicle to control the operation of lights, mirrors, windshield wipers or radio, for example.
- Such a device comprises a manual control member whose actuation by a user causes the aforementioned state change of the electrical circuit.
- control devices such as pushers with springs without indexing, micro-contactors or pushers provided with a spring whose position is indexed on a notched ramp.
- An action exerted on the push button makes it possible to move the movable magnet away from the fixed magnet and at the same time bring the moving contact closer to the fixed contact so as to close an electrical circuit.
- the object of the invention is to solve the aforementioned drawbacks and to provide a control device with a simple structure and small overall dimensions, in particular axial dimensions.
- the invention also aims to provide a control device whose indexing means of the different operating positions have a virtually zero wear, so that it maintains a constant tactile feedback over time.
- the invention relates to a device for controlling the change of state of an electric circuit.
- this device comprises a housing, a manual control member, able to move relative to said housing, and two elements, one fixed, integral with said housing, the other movable, able to be moved by said control member, these two elements being an electrical circuit made of ferromagnetic material and a magnet, the respective faces of said electric circuit and said magnet located opposite one another and intended to cooperate, called "active faces", being electrically conductive, said manual control member being movable between an initial position, in which the two elements are in magnetic and electrical contact, such that said electrical circuit is in an activated state and a final position, in which both elements are spaced from each other and are no longer in magnetic and electrical contact, so that said electrical circuit is in a state inactivated.
- control device comprises a housing 1, within which are housed a manual control member 2, an electric circuit 3 and a permanent magnet 4.
- the housing 1 and the control member 2 are made of a non-magnetic material and electrically insulating, preferably plastic.
- the casing 1 has the general shape of a cylinder of low height, with a longitudinal axis X-X '.
- the housing 1 comprises an outer cylindrical wall 11, an inner cylindrical wall 12, both coaxial with the axis X-X '.
- the housing 1 is further closed at one of these ends by a circular bottom 13.
- the cylindrical outer wall 11 has two parts, namely a lower portion 111, thicker, located in the vicinity of the bottom 13, and an upper portion 113, less thick.
- the inner diameter of the upper cylindrical portion 113 is larger than the inner diameter of the lower portion 111.
- the two walls 11 and 12 and the bottom 13 define inside the housing 1, a chamber 14 of generally annular shape.
- the chamber 14 is divided into two parts, namely an annular lower chamber 142 and an annular upper chamber 141.
- the manual control member 2 takes the form of a push button, capable of sliding axially along the axis X-X '.
- the push button 2 comprises a head 21, in the form of a thin disc, which is extended by a guide cylinder 22, axis perpendicular to the plane of the disc.
- the outer diameter of the head 21 corresponds to the inner diameter of the upper portion 113 of the cylindrical wall 11, while the inner diameter of the guide cylinder 22 corresponds to the outer diameter of the inner wall 12 of the housing 1, with a slight clearance. This allows the translational movement of the push button 2, around the cylinder 12, along the axis X-X '.
- FIGS. 1 and 2 The two extreme positions likely to be occupied by the push button 2 are illustrated respectively in FIGS. 1 and 2.
- the magnet 4 has the shape of a thin ring. It is housed inside the chamber 142 and its dimensions are adapted so that it can slide axially inside thereof, along the axis X-X '.
- the magnet 4 has a planar upper face 41 and an opposite lower face 42, also flat and located opposite the bottom 13.
- the magnet 4 may be made of a metallic material, intrinsically electrically conductive, for example ferrite.
- the magnet 4 is made of plastoferrite.
- its upper face 41 is covered at least partially with a coating electrically conductive, for example a conductive ink, and can be deposited therein by screen printing or by pad printing, for example.
- a coating electrically conductive for example a conductive ink
- the plastoferrite may include charges to make it sufficiently electrically conductive for the intended application.
- FIG. 1 An embodiment of the electric circuit 3 is illustrated in FIG. 1
- This circuit 3 comprises two half-rings 30, 30 ', each of them being extended by a connecting lug 31, respectively 31', on which is welded an electrically conductive wire 32, respectively 32 '.
- the circuit 3 is made of a ferromagnetic material, that is to say likely to be attracted by a magnet.
- the circuit 3 can be made of an intrinsically electrically conductive material.
- This electrically conductive coating may be a conductive ink deposited, for example, by screen printing or pad printing.
- This electrically conductive coating can also be deposited by an electrolytic bath on tape, by pre-silvering or pre-tinning.
- the two parts of the circuit 3 are advantageously overmoulded to keep their geometry.
- each of the half-rings 30, 30 corresponds substantially to the outside diameter of the guide cylinder 22, so that the circuit 3 can be disposed inside the chamber 141 of the housing 1, so that its periphery rests on the annular shoulder 112 and that it surrounds the cylinder 22.
- the magnet 4 In the initial resting position, illustrated in FIG. 1, the magnet 4 is pressed against the electric circuit 3 made of ferromagnetic material, because of the magnetic attraction.
- the electrically conductive face 41 of the magnet 4 ensures electrical contact between the two conductive faces 34 and 34 'of the two half-rings 30 and 30', respectively, and allows the electric circuit 3 to close.
- the electric circuit 3 being fixed, the magnet 4 is found at a distance e of this circuit 3, corresponding to the game j.
- the magnetic and electrical contacts between the magnet 4 and the electrical circuit 3 are then broken.
- the electric circuit 3 is open and goes from an activated state to an inactivated state.
- the user feels some resistance, as long as the magnet 4 and the circuit 3 are in contact. As soon as they are detached from each other, the user feels a runaway movement of the push button 2 or effect "gully" and has the tactile impression of the passage of a hard point.
- the distance e between the electric circuit 3 and the magnet 4 is such that the electric circuit 3 is always in the magnetic field exerted by the magnet 4.
- the movable magnet 4 can be returned to its initial position by any appropriate means, such as a micro spring for example.
- the magnet 4 could be fixed and the electric circuit 3 mobile.
- the inner 12 and outer 11 walls of the housing 1 could be of a shape other than cylindrical, the respective shapes of the electric circuit 3 and the magnet 4 then being adapted accordingly.
Landscapes
- Push-Button Switches (AREA)
- Toys (AREA)
- Selective Calling Equipment (AREA)
- Transmitters (AREA)
- Massaging Devices (AREA)
- Switches With Compound Operations (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Abstract
Description
La présente invention concerne un dispositif de commande du changement d'état d'un circuit électrique, qui permet de faire passer celui-ci, d'un état activé, à un état inactivé, ou l'inverse.The present invention relates to a device for controlling the change of state of an electric circuit, which makes it possible to pass it from an activated state to an inactivated state, or vice versa.
Ce dispositif trouve une application particulière dans l'industrie automobile, sans toutefois que celle-ci soit limitative.This device finds a particular application in the automotive industry, without however that it is limiting.
Il peut être utilisé notamment sur le tableau de bord d'un véhicule pour commander le fonctionnement des feux, des rétroviseurs, des essuie-glaces ou de la radio, par exemple.It can be used especially on the dashboard of a vehicle to control the operation of lights, mirrors, windshield wipers or radio, for example.
Un tel dispositif comprend un organe de commande manuelle dont l'actionnement par un utilisateur entraîne le changement d'état précité du circuit électrique.Such a device comprises a manual control member whose actuation by a user causes the aforementioned state change of the electrical circuit.
Il est important que l'utilisateur ressente un effet tactile, par exemple par le passage d'un point dur, lorsqu'il agit sur cet organe de commande, de façon à avoir la sensation que la manoeuvre a bien été effectuée. Cet effet est dénommé « indexage » de la position de l'organe de commande.It is important that the user feels a tactile effect, for example by the passage of a hard point, when acting on this control member, so as to have the feeling that the maneuver has been made. This effect is called "indexing" of the position of the control member.
On connaît déjà d'après l'état de la technique, des dispositifs de commande, tels que des poussoirs avec ressorts sans indexage, des micro-contacteurs ou des poussoirs munis d'un ressort dont la position est indexée sur une rampe crantée.Already known from the state of the art, control devices, such as pushers with springs without indexing, micro-contactors or pushers provided with a spring whose position is indexed on a notched ramp.
Dans ces dispositifs de l'état de la technique, le frottement des pièces mécaniques entre-elles provoquent des efforts parasites et leur usure prématurée.In these devices of the state of the art, the friction of the mechanical parts together cause parasitic forces and premature wear.
On connaît également d'après les documents
Une action exercée sur le bouton poussoir permet d'écarter l'aimant mobile, de l'aimant fixe et simultanément de rapprocher le contact mobile du contact fixe, de façon à fermer un circuit électrique.An action exerted on the push button makes it possible to move the movable magnet away from the fixed magnet and at the same time bring the moving contact closer to the fixed contact so as to close an electrical circuit.
Toutefois, ces dispositifs présentent une structure complexe du fait de leur nombre important de pièces. Ils sont donc coûteux à fabriquer.However, these devices have a complex structure because of their large number of parts. They are therefore expensive to manufacture.
De plus, ils présentent un encombrement axial important, tel que le dispositif décrit dans le document "
L'invention a pour but de résoudre les inconvénients précités et de fournir un dispositif de commande de structure simple et de faible encombrement, notamment axial.The object of the invention is to solve the aforementioned drawbacks and to provide a control device with a simple structure and small overall dimensions, in particular axial dimensions.
L'invention a également pour but de fournir un dispositif de commande dont les moyens d'indexage des différentes positions de fonctionnement aient une usure pratiquement nulle, de façon à ce qu'il conserve un rendu tactile constant au cours du temps.The invention also aims to provide a control device whose indexing means of the different operating positions have a virtually zero wear, so that it maintains a constant tactile feedback over time.
A cet effet, l'invention concerne un dispositif de commande du changement d'état d'un circuit électrique.For this purpose, the invention relates to a device for controlling the change of state of an electric circuit.
Conformément à l'invention, ce dispositif comprend un boîtier, un organe de commande manuelle, apte à se déplacer par rapport audit boîtier, et deux éléments, l'un fixe, solidaire dudit boîtier, l'autre mobile, apte à être déplacé par ledit organe de commande, ces deux éléments étant un circuit électrique réalisé en matériau ferromagnétique et un aimant, les faces respectives dudit circuit électrique et dudit aimant situées en regard l'une de l'autre et destinées à coopérer, dites «faces actives », étant électriquement conductrices, ledit organe de commande manuelle pouvant être déplacé entre une position initiale, dans laquelle les deux éléments sont en contact magnétique et électrique, de sorte que ledit circuit électrique est dans un état activé et une position finale, dans laquelle les deux éléments sont écartés l'un de l'autre et ne sont plus en contact magnétique et électrique, de sorte que ledit circuit électrique est dans un état inactivé.According to the invention, this device comprises a housing, a manual control member, able to move relative to said housing, and two elements, one fixed, integral with said housing, the other movable, able to be moved by said control member, these two elements being an electrical circuit made of ferromagnetic material and a magnet, the respective faces of said electric circuit and said magnet located opposite one another and intended to cooperate, called "active faces", being electrically conductive, said manual control member being movable between an initial position, in which the two elements are in magnetic and electrical contact, such that said electrical circuit is in an activated state and a final position, in which both elements are spaced from each other and are no longer in magnetic and electrical contact, so that said electrical circuit is in a state inactivated.
Selon d'autres caractéristiques avantageuses et non limitatives de l'invention, prises seules ou en combinaison :
- la face active de l'aimant et/ou la face active du circuit électrique sont recouvertes au moins partiellement d'un revêtement électriquement conducteur ;
- le revêtement électriquement conducteur est une encre conductrice qui peut être déposée par sérigraphie ou tampographie ;
- le revêtement électriquement conducteur de la face active du circuit électrique est déposé par un bain électrolytique ;
- l'aimant constitue l'élément mobile, apte à être déplacé par l'organe de commande manuelle ;
- lorsque l'organe de commande manuelle est dans la position fmale, l'écartement entre le circuit électrique et l'aimant est tel que le circuit électrique est toujours dans le champ magnétique exercé par l'aimant, de sorte que cette position fmale est instable ;
- l'organe de commande manuelle est un bouton poussoir, apte à se déplacer en translation, en direction du boîtier, le long de l'axe longitudinal de celui-ci, le boîtier étant muni de moyens de guidage du déplacement dudit bouton poussoir ;
- ledit boîtier comprend deux parois intérieure et extérieure, coaxiales à l'axe longitudinal du boîtier, qui constituent des moyens de guidage en translation de l'élément mobile et du bouton poussoir, le long de cet axe longitudinal ;
- les deux parois intérieure et extérieure sont cylindriques et l'élément mobile est annulaire et guidé entre ces deux parois.
- the active face of the magnet and / or the active face of the electrical circuit are at least partially covered with an electrically conductive coating;
- the electrically conductive coating is a conductive ink that can be deposited by screen printing or pad printing;
- the electrically conductive coating of the active face of the electric circuit is deposited by an electrolytic bath;
- the magnet constitutes the movable element, able to be moved by the manual control member;
- when the manual control member is in the final position, the spacing between the electric circuit and the magnet is such that the electric circuit is always in the magnetic field exerted by the magnet, so that this final position is unstable ;
- the manual control member is a push button, able to move in translation, towards the housing, along the longitudinal axis thereof, the housing being provided with means for guiding the displacement of said push button;
- said housing comprises two inner and outer walls, coaxial with the longitudinal axis of the housing, which constitute guide means in translation of the movable member and the push button, along said longitudinal axis;
- the two inner and outer walls are cylindrical and the movable element is annular and guided between these two walls.
D'autres caractéristiques et avantages de l'invention apparaîtront de la description qui va maintenant en être faite, en référence aux dessins annexés, qui en représentent, à titre indicatif, mais non limitatif, un mode de réalisation possible.Other features and advantages of the invention will appear from the description which will now be made, with reference to the accompanying drawings, which represent, by way of indication, but not limited to, a possible embodiment.
Sur ces dessins :
- les figures 1 et 2 sont des vues en coupe axiale, longitudinale, du dispositif de commande conforme à l'invention, sur lesquelles, l'organe de commande manuelle est respectivement dans sa position initiale et dans sa position fmale,
- la figure 3 est une vue de face du circuit électrique destiné à être activé par le dispositif de commande conforme à l'invention.
- Figures 1 and 2 are views in axial section, longitudinal, of the control device according to the invention, on which the manual control member is respectively in its initial position and in its final position,
- Figure 3 is a front view of the electrical circuit to be activated by the control device according to the invention.
Dans la suite de la description, les références aux termes « inférieure », « supérieure », « haut », « bas » sont à prendre en considération par rapport à la position occupée par le dispositif de commande sur les figures 1 et 2.In the remainder of the description, the references to the terms "lower", "upper", "high", "low" are to be considered in relation to the position occupied by the control device in FIGS. 1 and 2.
En se reportant aux figures 1 et 2, on peut voir que le dispositif de commande comprend un boîtier 1, à l'intérieur duquel sont logés un organe de commande manuelle 2, un circuit électrique 3 et un aimant permanent 4.Referring to FIGS. 1 and 2, it can be seen that the control device comprises a
Le boîtier 1 et l'organe de commande 2 sont réalisés dans un matériau amagnétique et électriquement isolant, de préférence en matière plastique.The
Le boîtier 1 présente la forme générale d'un cylindre de faible hauteur, d'axe longitudinal X-X'.The
Plus précisément, le boîtier 1 comprend une paroi cylindrique extérieure 11, une paroi cylindrique intérieure 12, toutes deux coaxiales à l'axe X-X'.More specifically, the
Le boîtier 1 est en outre obturé à l'une de ces extrémités par un fond 13 circulaire.The
La paroi extérieure cylindrique 11 présente deux parties, à savoir une partie inférieure 111, plus épaisse, située au voisinage du fond 13, et une partie supérieure 113, moins épaisse. En d'autres termes, le diamètre intérieur de la partie cylindrique supérieure 113 est plus grand que le diamètre intérieur de la partie inférieure 111.The cylindrical
Ces deux parties 111 et 113 délimitent entre elles un épaulement annulaire 112 qui s'étend dans un plan parallèle à celui du fond 13.These two
Les deux parois 11 et 12 et le fond 13 définissent à l'intérieur du boîtier 1, une chambre 14 de forme générale annulaire.The two
Compte tenu de la différence d'épaisseur des différentes parties de la paroi extérieure 11, la chambre 14 se divise en deux parties, à savoir une chambre inférieure annulaire 142 et une chambre supérieure annulaire 141.Given the difference in thickness of the different parts of the
De façon avantageuse, dans le mode de réalisation illustré sur les figures, l'organe de commande manuelle 2 revêt la forme d'un bouton poussoir, susceptible de coulisser axialement le long de l'axe X-X'.Advantageously, in the embodiment illustrated in the figures, the manual control member 2 takes the form of a push button, capable of sliding axially along the axis X-X '.
Le bouton poussoir 2 comprend une tête 21, en forme de disque de faible épaisseur, qui se prolonge par un cylindre de guidage 22, d'axe perpendiculaire au plan du disque.The push button 2 comprises a
Le diamètre extérieur de la tête 21 correspond au diamètre intérieur de la partie supérieure 113 de la paroi cylindrique 11, tandis que le diamètre intérieur du cylindre de guidage 22 correspond au diamètre extérieur de la paroi intérieure 12 du boîtier 1, avec un léger jeu. Ceci autorise le déplacement en translation du bouton poussoir 2, autour du cylindre 12, selon l'axe X-X'. The outer diameter of the
Les deux positions extrêmes susceptibles d'être occupées par le bouton poussoir 2 sont illustrées respectivement sur les figures 1 et 2.The two extreme positions likely to be occupied by the push button 2 are illustrated respectively in FIGS. 1 and 2.
L'aimant 4 a la forme d'un anneau de faible épaisseur. Il est logé à l'intérieur de la chambre 142 et ses dimensions sont adaptées pour qu'il puisse coulisser axialement à l'intérieur de celle-ci, le long de l'axe X-X'.The
L'aimant 4 présente une face supérieure plane 41 et une face inférieure opposée 42, également plane et située en regard du fond 13.The
L'aimant 4 peut être réalisé dans un matériau métallique, intrinsèquement électriquement conducteur, par exemple en ferrite.The
De préférence toutefois, et de façon à pouvoir être moulé à la forme souhaitée, l'aimant 4 est réalisé en plastoferrite.Preferably, however, and so as to be molded to the desired shape, the
Dans ce cas, sa face supérieure 41, dite "face active" car située en regard du circuit 3, est recouverte au moins partiellement d'un revêtement électriquement conducteur, par exemple une encre conductrice, et peut y être déposé par sérigraphie ou par tampographie, par exemple.In this case, its
Selon une autre possibilité, le plastoferrite peut inclure des charges permettant de le rendre suffisamment électriquement conducteur pour l'application visée.Alternatively, the plastoferrite may include charges to make it sufficiently electrically conductive for the intended application.
Un exemple de réalisation du circuit électrique 3 est illustré sur la figure 3.An embodiment of the
Ce circuit 3 comprend deux demi anneaux 30, 30', chacun d'eux se prolongeant par une patte de connexion 31, respectivement 31', sur laquelle est soudée un fil électriquement conducteur 32, respectivement 32'.This
Les faces supérieures et inférieures desdits demi anneaux 30, 30' portent respectivement les références numériques 33, 33' et 34, 34'.The upper and lower faces of said half-
Le circuit 3 est réalisé dans un matériau ferromagnétique, c'est à dire susceptible d'être attiré par un aimant.The
De façon avantageuse, le circuit 3 peut être réalisé dans un matériau intrinsèquement électriquement conducteur.Advantageously, the
Si tel n'est pas le cas, ses faces inférieures 34, 34', dites "actives", situées en regard de l'aimant 4 sont recouvertes en totalité, ou au moins partiellement, d'un revêtement électriquement conducteur, de façon à assurer la conduction de l'électricité jusqu'au deux fils 32, 32'.If this is not the case, its lower faces 34, 34 ', said "active", located opposite the
Ce revêtement électriquement conducteur peut être une encre conductrice, déposée, par exemple, par sérigraphie ou tampographie.This electrically conductive coating may be a conductive ink deposited, for example, by screen printing or pad printing.
Ce revêtement électriquement conducteur peut également être déposé par un bain électrolytique sur bande, par pré-argentage ou pré-étamage.This electrically conductive coating can also be deposited by an electrolytic bath on tape, by pre-silvering or pre-tinning.
Les deux parties du circuit 3 sont avantageusement surmoulées pour garder leur géométrie.The two parts of the
Le diamètre intérieur de chacun des demi anneaux 30, 30' correspond sensiblement au diamètre extérieur du cylindre de guidage 22, de sorte que le circuit 3 peut être disposé à l'intérieur de la chambre 141 du boîtier 1, de façon que sa périphérie repose sur l'épaulement annulaire 112 et qu'il entoure le cylindre 22.The inside diameter of each of the half-
Les pattes de connexion 31, 31' font saillies hors du boîtier 1.The
Dans la position initiale, de repos, illustrée sur la figure 1, l'aimant 4 est plaqué contre le circuit électrique 3 en matériau ferromagnétique, du fait de l'attraction magnétique.In the initial resting position, illustrated in FIG. 1, the
La face électriquement conductrice 41 de l'aimant 4, assure le contact électrique entre les deux faces conductrices 34, respectivement 34', des deux demi anneaux 30, respectivement 30', et permet la fermeture du circuit électrique 3.The electrically
Dans cette position, l'aimant 4 est espacé d'un léger jeu j, du fond 13 du boîtier 1.In this position, the
Lorsqu'un utilisateur exerce une pression sur la tête 21 du bouton-poussoir 2, (comme représenté par la flèche F sur la figure 2), le cylindre de guidage 22 déplace l'aimant 4 en translation, jusqu'à ce que la face inférieure 42 de celui-ci vienne au contact du fond 13 du boîtier 1.When a user exerts a pressure on the
Le circuit électrique 3 étant fixe, l'aimant 4 se retrouve à un écartement e de ce circuit 3, correspondant au jeu j.The
Les contacts magnétique et électrique entre l'aimant 4 et le circuit électrique 3 sont alors rompus. Le circuit électrique 3 est ouvert et passe d'un état activé à un état inactivé.The magnetic and electrical contacts between the
L'utilisateur ressent une certaine résistance, tant que l'aimant 4 et le circuit 3 sont en contact. Dès que ceux-ci se décollent l'un de l'autre, l'utilisateur ressent un emballement du déplacement du bouton poussoir 2 ou effet « avaloir » et a l'impression tactile du passage d'un point dur.The user feels some resistance, as long as the
Ensuite, l'utilisateur ressent que l'aimant 4 est en butée contre le fond 13.Then, the user feels that the
De façon avantageuse, dans la position finale illustrée sur la figure 2, l'écartement e entre le circuit électrique 3 et l'aimant 4 est tel, que le circuit électrique 3 se trouve toujours dans le champ magnétique exercé par l'aimant 4.Advantageously, in the final position illustrated in FIG. 2, the distance e between the
La position fmale est donc instable et dès que l'utilisateur relâche la pression exercée sur le bouton pressoir 2, l'aimant 4 revient se plaquer contre le circuit électrique 3. Le déplacement de l'aimant 4 ramène le bouton poussoir 2 dans sa position d'origine, illustrée sur la figure 1.The final position is therefore unstable and as soon as the user releases the pressure exerted on the press button 2, the
Selon une variante de réalisation non représentée sur les figures, dans le cas où l'écartement e est plus important, l'aimant mobile 4 peut être ramené dans sa position initiale par tout moyen approprié, tel qu'un micro ressort par exemple.According to an alternative embodiment not shown in the figures, in the case where the spacing e is larger, the
De même, selon une autre variante de réalisation non représentée, l'aimant 4 pourrait être fixe et le circuit électrique 3 mobile.Similarly, according to another alternative embodiment not shown, the
Enfin, on notera que les parois intérieure 12 et extérieure 11 du boîtier 1 pourraient être d'une forme autre que cylindrique, les formes respectives du circuit électrique 3 et de l'aimant 4 étant alors adaptées en conséquence.Finally, it will be noted that the inner 12 and outer 11 walls of the
Claims (10)
- Device for controlling the change of state of an electrical circuit, characterised in that it comprises a box (1), a manual control member (2) able to move with respect to the said box (1), and two elements (3, 4), one fixed, secured to the said box (1), the other movable, able to be moved by the said control member (2), these two elements being an electrical circuit (3) produced from ferromagnetic material and a magnet (4), the respective faces (34, 34', 41) of the said electrical circuit (3) and of the said magnet (4) situated opposite each other and intended to cooperate, referred to as "active faces", being electrically conductive, the said manual control member (2) being able to be moved between an initial position in which the two elements (3, 4) are in magnetic and electrical contact, so that the said electrical circuit (3) is in an activated state, and a final position in which the two elements (3, 4) are separated from each other and are no longer in magnetic and electrical contact, so that the said electrical circuit (3) is in an inactivated state.
- Device according to claim 1, characterised in that the active face (41) of the magnet (4) and/or the active face (34, 34') of the electrical circuit (3) are at least partially covered with an electrically conductive covering.
- Device according to claim 2, characterised in that the electrically conductive covering is a conductive ink.
- Device according to claim 3, characterised in that the conductive ink can be deposited by screen printing or pad printing.
- Device according to claim 2, characterised in that the electrically conductive covering on the active face (34, 34') of the electrical circuit (3) is deposited by an electrolytic bath.
- Device according to one of the preceding claims, characterised in that the magnet (4) constitutes the movable element, able to be moved by the manual control member (2).
- Device according to one of the preceding claims, characterised in that, when the manual control member (2) is in the final position, the separation (e) between the electrical circuit (3) and the magnet (4) is such that the electrical circuit (3) is still in the magnetic field exerted by the magnet (4), so that this final position is unstable.
- Device according to one of the preceding claims, characterised in that the manual control member (2) is a push button, able to move in translation, in the direction of the box (1), along the longitudinal axis X-X' of the latter, the box (1) being provided with means (12) of guiding the movement of the said push button.
- Device according to claim 8, characterised in that the said box (1) comprises two internal (12) and external (11) walls, coaxial with the longitudinal axis X-X' of the box (1), which constitute means of guiding the movable element (3, 4) and the push button (2) in translation along this longitudinal axis X-X'.
- Device according to claim 9, characterised in that the two internal (12) and external (11) walls are cylindrical and in that the movable element (3, 4) is annular and guided between these two walls (11, 12).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0501632A FR2882187B1 (en) | 2005-02-17 | 2005-02-17 | DEVICE FOR CONTROLLING THE CHANGE OF CONDITION OF A CIRCUIT |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1693868A1 EP1693868A1 (en) | 2006-08-23 |
EP1693868B1 true EP1693868B1 (en) | 2007-09-05 |
Family
ID=34955536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06101483A Active EP1693868B1 (en) | 2005-02-17 | 2006-02-09 | Apparatus for controlling the change of state of a circuit |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1693868B1 (en) |
AT (1) | ATE372582T1 (en) |
DE (1) | DE602006000093T2 (en) |
ES (1) | ES2293623T3 (en) |
FR (1) | FR2882187B1 (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2484130A1 (en) * | 1980-06-06 | 1981-12-11 | Serras Paulet Edouard | DEVICE WITH A FASTENABLE TOUCH FORMING A DELAYED OPEN SWITCH |
DD262732A1 (en) * | 1987-07-20 | 1988-12-07 | Leipzig Wohn Freizeit | ELECTRIC PUSHBUTTON |
-
2005
- 2005-02-17 FR FR0501632A patent/FR2882187B1/en active Active
-
2006
- 2006-02-09 EP EP06101483A patent/EP1693868B1/en active Active
- 2006-02-09 AT AT06101483T patent/ATE372582T1/en not_active IP Right Cessation
- 2006-02-09 DE DE602006000093T patent/DE602006000093T2/en active Active
- 2006-02-09 ES ES06101483T patent/ES2293623T3/en active Active
Also Published As
Publication number | Publication date |
---|---|
ES2293623T3 (en) | 2008-03-16 |
FR2882187B1 (en) | 2007-04-06 |
ATE372582T1 (en) | 2007-09-15 |
DE602006000093D1 (en) | 2007-10-18 |
FR2882187A1 (en) | 2006-08-18 |
EP1693868A1 (en) | 2006-08-23 |
DE602006000093T2 (en) | 2008-06-05 |
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