EP0577521A1 - Switch with rotor for radio transceiver - Google Patents

Switch with rotor for radio transceiver Download PDF

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Publication number
EP0577521A1
EP0577521A1 EP19930401728 EP93401728A EP0577521A1 EP 0577521 A1 EP0577521 A1 EP 0577521A1 EP 19930401728 EP19930401728 EP 19930401728 EP 93401728 A EP93401728 A EP 93401728A EP 0577521 A1 EP0577521 A1 EP 0577521A1
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EP
European Patent Office
Prior art keywords
switch
wafer
ring
contact
fixed part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19930401728
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German (de)
French (fr)
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EP0577521B1 (en
Inventor
Damien Perucaud
André Batard
Roger Guchet
Jacques Galland
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Thales SA
Original Assignee
Thomson CSF SA
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Publication of EP0577521A1 publication Critical patent/EP0577521A1/en
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Publication of EP0577521B1 publication Critical patent/EP0577521B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
    • H01H19/58—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch
    • H01H19/585—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch provided with printed circuit contacts

Definitions

  • the present invention relates to a wafer switch for a radio transceiver station.
  • This mode of operation by scanning for the operation of a radio transceiver station has drawbacks mainly related to problems of interference and autonomy of operation of the station.
  • the keyboard-switch assembly comprises two matrices: a keyboard matrix and a switch matrix. Each matrix is made up of rows and columns. The columns of each matrix are respectively linked to a parity generator which detects any change of state appearing on the columns. Any change in their status will cause an interruption.
  • An interruption is in particular caused on each addressing of a matrix corresponding to a zero crossing of a column and is translated by a pulse at the output of the parity generator. These interruptions must be invalidated, which creates a gray area or any operator action on the operating devices corresponding to the matrix is ignored. The duration of this zone is directly linked to the speed of the reading algorithm. If a switch changes state during this gray area, there will be no interruption at the microprocessor level and the reading in progress will be considered good although it does not reflect the actual position of the switch.
  • the object of the invention is to overcome this drawback.
  • the subject of the invention is a switch comprising at least one wafer centered and fixed around an axis of which at least one of its faces comprises a conductive zone and an insulating zone, the conductive zone defining an electrical conductor in the form concentric rings, and comprising at least one fixed part comprising at least one electrical conductor making it possible to establish a mechanical and electrical connection between the wafer and the fixed part of the switch in a stable position determined by the position of the axis of the switch, characterized in that at least one first ring has discontinuities defined by the transition between the conductive area and the insulating area of the wafer and vice versa, generating for each discontinuity via a contact in connection with the first ring a command allowing the reading of a determined state of the switch for each change of stable position of the axis of the switch, in that at least one second ring concentric with the first ring has discontinuities, of the same kind as the discontinuities of the first ring, comprised between two successive discontinuities of the first ring, each discontinu
  • FIG. 1 represents a top view of a part of a switch according to the invention representing one of the faces a wafer 1 centered and fixed around an axis 2 corresponding to the axis of the switch.
  • Axis 2 is actuated for each change of state of the switch, each change of position of the switch corresponding to a change of state of the switch.
  • the fixed part of the switch is not shown, only metal contacts integral with the fixed part are symbolized by a point.
  • the wafer 1 is produced in the example of the figure by a printed circuit.
  • the wafer 1 has two distinct zones: a conductive zone 5 corresponding to the metallization of the printed circuit represented in the figure by a hatched zone, for example a copper metallization, and an insulating zone 6 corresponding to the non-metallized substrate, for example epoxy glass .
  • each ring corresponds to a printed circuit track of known type having a circular shape.
  • Each ring is electrically connected to the others to form a single conductive zone 5.
  • To each track thus formed corresponds a metal contact of the fixed part of the switch.
  • the contact is a flexible metal contact, for example a metal blade, one end of which is integral with the fixed part and the other free end of which is shaped to allow flexible contact on the surface of the wafer 1.
  • the mechanical connection of the contact with the wafer 1 is permanently ensured due to the elasticity of the blade thus ensuring frictional contact on the surface of the wafer 1.
  • the tracks whose width is determined according to the type of contact used can form a continuous or discontinuous ring.
  • the track 7 corresponding to the contact C is continuous and of constant width.
  • Contact C supplies the conductive area 6 of the wafer 1 and thus imposes a determined logic state on the metal contacts when they are in contact with the conductive area 5 of the wafer 1.
  • the blades in contact with the insulating area 6 are in a state additional logic possibly imposed by pulling resistors not shown polarized by an electric voltage applied to one of their ends and connected respectively by their other end to the contact blades.
  • the four contacts symbolized by the letters A, B, D and E, give the state of the switch as a function of their respective position on the surface of the wafer 1 for each change of stable position 4i of the axis 2 of the switch.
  • each stable position 4i is symbolized by a radius represented by dotted lines.
  • the angle separating each stable position 4i is therefore 36 °.
  • each position 4i of the switch corresponds to a four-digit code.
  • a track 8 corresponding to contact F in this example is a regularly crenellated track.
  • Each slot 9i is centered on a stable position 4i of the axis 2 of the switch.
  • An electrical discontinuity 10i is present for each passage of the contact F from a conductive zone 5 to an insulating zone 6 and vice versa, either when passing from the metallized track to the substrate and vice versa.
  • a command is generated and transmitted via finger F to an information management unit, not shown, for example a microprocessor, allowing the reading of the present code.
  • the other tracks 11i corresponding to the contacts A, B, D and E have discontinuities 12i of the same nature as the discontinuities 10i of track 8 corresponding to contact F.
  • discontinuities 12i determine a change of state of the switch, and are advantageously positioned at the center of the angle formed by two stable positions 4i of axis 2 of the switch, either in the figure, in the middle of two successive slots 9i of track 8 corresponding to contact F.
  • mechanical manufacturing tolerances are overcome by avoiding that contacts A, B, D and E overlap the two zones 5 and 6 for the same stable position 4i.
  • the particular structure given to track 8 in the form of symmetrical slots 9i also allows the switch to operate in both directions of rotation.
  • the contact C allows the selection of one or more switches by supplying or not supplying the conductive area 5 of the wafers 1 of the switches.
  • the wafer 1 can be produced in double-sided printed circuits. Each face of the wafer 1 receiving metal contacts integral with the same fixed part, which gives a stable position 4i of the axis of the switch two separate codes for a single switch.
  • the description is not limited to the example precisely described.
  • the position and the number of contacts can be different.
  • the conductive area and the insulating area can be made of other material and be represented differently as well as the discontinuities. Any type of metal contact ensuring a mechanical and electrical connection with the face or faces of the cake falls within the scope of the present invention.
  • the number of stable positions may vary depending on the application.

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  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

The switch includes a wafer (1), at least one face of which includes an insulating region (6) and a conducting region (5) and a fixed part containing metal contacts. The conducting region (5) is configured as concentric crown-shaped metallised tracks connected together. Two, at least, of the crowns include discontinuities (10i) and (11i) defined as the transition from the conducting region (5) to the insulating region (6) and vice-versa. With each change of stable position (4i) of the spindle (2) of the switch, a discontinuity (10i) of a first crown (8) is traversed by a contact from the fixed part of the switch and a command is generated to allow the reading of the new state of the switch. A change of state of the switch corresponds to a discontinuity (12i) of the same kind as that of the first crown (8) on at least one second crown (11i). A discontinuity (12i) of the second crown (11i) is included between two successive discontinuities (10i) of the first crown (8). Application: radio transceivers. <IMAGE>

Description

La présente invention concerne un commutateur à galette pour poste émetteur-récepteur radioélectrique.The present invention relates to a wafer switch for a radio transceiver station.

Dans les architectures connues à microprocesseur l'analyse par scrutation de l'état des unités périphériques est effectuée au moyen de signaux d'interrogation qui sont émis périodiquement par un microprocesseur à destination de chaque unité. C'est le cas par exemple des ensembles claviers-commutateurs de certains appareils émetteurs-récepteurs radio où les fréquences et les modes de fonctionnement sont affichés au moyen d'un clavier ou de commutateurs et sont lus périodiquement par un microprocesseur.In known microprocessor-based architectures, the analysis by scrutiny of the state of the peripheral units is carried out by means of interrogation signals which are periodically transmitted by a microprocessor intended for each unit. This is the case, for example, of the keyboard-switch assemblies of certain radio transceiver devices where the frequencies and operating modes are displayed by means of a keyboard or switches and are read periodically by a microprocessor.

Ce mode de fonctionnement par scrutation pour l'exploitation d'un poste émetteur-récepteur radio possède des inconvénients principalement liés à des problèmes de brouillage et d'autonomie de fonctionnement du poste.This mode of operation by scanning for the operation of a radio transceiver station has drawbacks mainly related to problems of interference and autonomy of operation of the station.

Il est connu, pour pallier ces inconvénients, de déclencher dans le microprocesseur la lecture de l'état électrique de l'ensemble clavier-commutateur à chaque changement d'état d'au moins un élément de l'ensemble clavier-commutateur dès l'apparition d'un changement d'état.It is known, to overcome these drawbacks, to trigger in the microprocessor the reading of the electrical state of the keyboard-switch assembly at each change of state of at least one element of the keyboard-switch assembly from the appearance of a change of state.

Le principe détaillé de ce procédé est décrit dans la demande de brevet 2 616 240 déposée au nom de la demanderesse.The detailed principle of this process is described in patent application 2 616 240 filed in the name of the applicant.

Des limitations dues au principe de détection mises en oeuvre par le dispositif selon la demande de brevet citée ci-dessus montrent l'existence de zones d'ombre définies comme suit :Limitations due to the detection principle implemented by the device according to the patent application cited above show the existence of gray areas defined as follows:

L'ensemble clavier-commutateur comporte deux matrices : une matrice clavier et une matrice commutateur. Chaque matrice est formée de lignes et de colonnes. Les colonnes de chaque matrice sont respectivement reliées à un générateur de parité qui détecte tout changement d'état apparaissant sur les colonnes. Tout changement d'état de celles-ci provoquent une interruption.The keyboard-switch assembly comprises two matrices: a keyboard matrix and a switch matrix. Each matrix is made up of rows and columns. The columns of each matrix are respectively linked to a parity generator which detects any change of state appearing on the columns. Any change in their status will cause an interruption.

Une interruption est en particulier provoquée à chaque adressage d'une matrice correspondant à un passage à zéro d'une colonne et se traduit par une impulsion en sortie du générateur de parité. Il faut invalider ces interruptions, ce qui crée une zone d'ombre ou toute action de l'opérateur sur les organes d'exploitation correspondant à la matrice est ignorée. La durée de cette zone est directement liée à la vitesse de l'algorithme de lecture. Si un commutateur change d'état pendant cette zone d'ombre, il n'y aura pas d'interruption au niveau du microprocesseur et la lecture en cours sera considérée comme bonne malgré qu'elle ne reflète pas la position réelle du commutateur.An interruption is in particular caused on each addressing of a matrix corresponding to a zero crossing of a column and is translated by a pulse at the output of the parity generator. These interruptions must be invalidated, which creates a gray area or any operator action on the operating devices corresponding to the matrix is ignored. The duration of this zone is directly linked to the speed of the reading algorithm. If a switch changes state during this gray area, there will be no interruption at the microprocessor level and the reading in progress will be considered good although it does not reflect the actual position of the switch.

Le but de l'invention est de pallier cet inconvénient.The object of the invention is to overcome this drawback.

A cet effet, l'invention a pour objet un commutateur comportant au moins une galette centrée et fixée autour d'un axe dont au moins une de ses faces comporte une zone conductrice et une zone isolante, la zone conductrice définissant un conducteur électrique en forme de couronnes concentriques, et comportant au moins une partie fixe comportant au moins un conducteur électrique permettant d'établir une liaison mécanique et électrique entre la galette et la partie fixe du commutateur suivant une position stable déterminée par la position de l'axe du commutateur, caractérisé en ce qu'au moins une première couronne comporte des discontinuités définies par la transition entre la zone conductrice et la zone isolante de la galette et inversement, générant pour chaque discontinuité par l'intermédiaire d'un contact en liaison avec la première couronne une commande permettant la lecture d'un état déterminé du commutateur pour chaque changement de position stable de l'axe du commutateur,
   en ce qu'au moins une deuxième couronne concentrique à la première couronne comporte des discontinuités, de même nature que les discontinuités de la première couronne, comprises entre deux discontinuités successives de la première couronne, chaque discontinuité de la deuxième couronne correspondant à un changement d'état du commutateur,
   en ce que la partie fixe comporte au moins un contact en liaison permanente avec la zone conductrice de la galette, permettant d'imposer un état logique déterminé à la zone conductrice de la galette ,
   en ce que la partie fixe comporte au moins un contact en liaison avec la première couronne,
   et en ce que la partie fixe comporte au moins un contact en liaison avec la deuxième couronne donnant l'état du commutateur correspondant à une position stable de l'axe du commutateur.To this end, the subject of the invention is a switch comprising at least one wafer centered and fixed around an axis of which at least one of its faces comprises a conductive zone and an insulating zone, the conductive zone defining an electrical conductor in the form concentric rings, and comprising at least one fixed part comprising at least one electrical conductor making it possible to establish a mechanical and electrical connection between the wafer and the fixed part of the switch in a stable position determined by the position of the axis of the switch, characterized in that at least one first ring has discontinuities defined by the transition between the conductive area and the insulating area of the wafer and vice versa, generating for each discontinuity via a contact in connection with the first ring a command allowing the reading of a determined state of the switch for each change of stable position of the axis of the switch,
in that at least one second ring concentric with the first ring has discontinuities, of the same kind as the discontinuities of the first ring, comprised between two successive discontinuities of the first ring, each discontinuity of the second ring corresponding to a change of 'switch status,
in that the fixed part comprises at least one contact in permanent connection with the conductive area of the wafer, making it possible to impose a determined logic state on the conductive area of the wafer,
in that the fixed part comprises at least one contact in connection with the first ring,
and in that the fixed part comprises at least one contact in connection with the second ring giving the state of the switch corresponding to a stable position of the axis of the switch.

D'autres caractéristiques et avantages de l'invention apparaîtront ci-après à l'aide de la description faite en regard de la figure annexée qui représente une vue de dessus d'une partie d'un commutateur selon l'invention représentant une des faces d'une galette 1 centrée et fixée autour d'un axe 2 correspondant à l'axe du commutateur. L'axe 2 est actionné pour chaque changement d'état du commutateur, chaque changement de position du commutateur correspondant à un changement d'état du commutateur. La partie fixe du commutateur n'est pas représentée, seuls des contacts métalliques solidaires de la partie fixe sont symbolisés par un point.Other characteristics and advantages of the invention will appear below with the aid of the description given with reference to the appended figure which represents a top view of a part of a switch according to the invention representing one of the faces a wafer 1 centered and fixed around an axis 2 corresponding to the axis of the switch. Axis 2 is actuated for each change of state of the switch, each change of position of the switch corresponding to a change of state of the switch. The fixed part of the switch is not shown, only metal contacts integral with the fixed part are symbolized by a point.

Dans l'exemple illustré par la figure, six contacts sont symbolisés par les six points respectivement repérés par les six lettres A, B, C, D, E, et F. Les six contacts sont alignés sur une même droite 3 passant par le centre de la galette 1 correspondant à une position stable 4i fixée par la position de l'axe 2 du commutateur. La galette 1 est réalisée dans l'exemple de la figure par un circuit imprimé. La galette 1 comporte deux zones distinctes : une zone conductrice 5 correspondant à la métallisation du circuit imprimé représentée sur la figure par une zone hachurée, par exemple une métallisation cuivre, et une zone isolante 6 correspondant au substrat non métallisé, par exemple du verre époxy.In the example illustrated by the figure, six contacts are symbolized by the six points respectively identified by the six letters A, B, C, D, E, and F. The six contacts are aligned on the same straight line 3 passing through the center of the wafer 1 corresponding to a stable position 4i fixed by the position of the axis 2 of the switch. The wafer 1 is produced in the example of the figure by a printed circuit. The wafer 1 has two distinct zones: a conductive zone 5 corresponding to the metallization of the printed circuit represented in the figure by a hatched zone, for example a copper metallization, and an insulating zone 6 corresponding to the non-metallized substrate, for example epoxy glass .

Une configuration particulière est donnée à la zone conductrice 5 sous la forme de couronnes concentriques ou chaque couronne correspond à une piste de circuit imprimé de type connu ayant une forme circulaire. Chaque couronne est reliée électriquement aux autres pour former une seule zone conductrice 5. A chaque piste ainsi formée correspond un contact métallique de la partie fixe du commutateur. Le contact est un contact métallique souple, par exemple une lame métallique dont l'une des extrémités est solidaire de la partie fixe et dont l'autre extrémité libre est façonnée pour permettre un contact souple sur la surface de la galette 1. La liaison mécanique du contact avec la galette 1 est assurée en permanence du fait de l'élasticité de la lame assurant ainsi un contact par frottement sur la surface de la galette 1. Les pistes dont la largeur est déterminée en fonction du type de contact utilisé peuvent former une couronne continue ou discontinue. Dans la galette 1 représentée sur la figure seule la piste 7 correspondant au contact C est continue et de largeur constante. Le contact C alimente la zone conductrice 6 de la galette 1 et impose ainsi un état logique déterminé aux contacts métalliques quand ils sont en contact avec la zone conductrice 5 de la galette 1. Les lames en contact avec la zone isolante 6 sont dans un état logique complémentaire imposé éventuellement par des résistances de tirage non représentées polarisées par une tension électrique appliquée sur une de leurs extrémités et reliées respectivement par leur autre extrémité aux lames de contact.A particular configuration is given to the conductive zone 5 in the form of concentric rings where each ring corresponds to a printed circuit track of known type having a circular shape. Each ring is electrically connected to the others to form a single conductive zone 5. To each track thus formed corresponds a metal contact of the fixed part of the switch. The contact is a flexible metal contact, for example a metal blade, one end of which is integral with the fixed part and the other free end of which is shaped to allow flexible contact on the surface of the wafer 1. The mechanical connection of the contact with the wafer 1 is permanently ensured due to the elasticity of the blade thus ensuring frictional contact on the surface of the wafer 1. The tracks whose width is determined according to the type of contact used can form a continuous or discontinuous ring. In the wafer 1 shown in the figure only the track 7 corresponding to the contact C is continuous and of constant width. Contact C supplies the conductive area 6 of the wafer 1 and thus imposes a determined logic state on the metal contacts when they are in contact with the conductive area 5 of the wafer 1. The blades in contact with the insulating area 6 are in a state additional logic possibly imposed by pulling resistors not shown polarized by an electric voltage applied to one of their ends and connected respectively by their other end to the contact blades.

Les quatre contacts, symbolisés par les lettres A, B, D et E, donnent l'état du commutateur en fonction de leur position respective à la surface de la galette 1 pour chaque changement de position 4i stable de l'axe 2 du commutateur.The four contacts, symbolized by the letters A, B, D and E, give the state of the switch as a function of their respective position on the surface of the wafer 1 for each change of stable position 4i of the axis 2 of the switch.

Dans l'exemple de la figure, dix positions stables 4i sont choisies. Chaque position 4i stable est symbolisée par un rayon représenté en pointillés. L'angle séparant chaque position stable 4i est donc de 36°.In the example in the figure, ten stable positions 4i are chosen. Each stable position 4i is symbolized by a radius represented by dotted lines. The angle separating each stable position 4i is therefore 36 °.

Ainsi, à chaque position 4i du commutateur correspond un code à quatre digits.Thus, each position 4i of the switch corresponds to a four-digit code.

Une piste 8 correspondant au contact F dans cet exemple, est une piste crénelée régulièrement. Chaque créneau 9i est centré sur une position stable 4i de l'axe 2 du commutateur. Une discontinuité électrique 10i est présente pour chaque passage du contact F d'une zone conductrice 5 à une zone isolante 6 et inversement soit au passage de la piste métallisée au substrat et inversement. A chaque discontinuité 10i de la piste 8 une commande est générée et transmise par l'intermédiaire du doigt F à un organe de gestion d'information non représenté, par exemple un microprocesseur, permettant la lecture du code présent. De même les autres pistes 11i correspondant aux contacts A, B, D et E comportent des discontinuités 12i de même nature que les discontinuités 10i de la piste 8 correspondant au contact F. Ces discontinuités 12i déterminent un changement d'état du commutateur, et sont avantageusement positionnées au centre de l'angle formé par deux positions stables 4i de l'axe 2 du commutateur soit sur la figure, au milieu de deux créneaux 9i successifs de la piste 8 correspondant au contact F. De ce fait, on s'affranchit des tolérances mécaniques de fabrication en évitant que les contacts A, B, D et E ne viennent chevaucher les deux zones 5 et 6 pour une même position stable 4i. La structure particulière donnée à la piste 8 sous forme de créneaux 9i symétriques permet en outre le fonctionnement du commutateur dans les deux sens de rotation.A track 8 corresponding to contact F in this example, is a regularly crenellated track. Each slot 9i is centered on a stable position 4i of the axis 2 of the switch. An electrical discontinuity 10i is present for each passage of the contact F from a conductive zone 5 to an insulating zone 6 and vice versa, either when passing from the metallized track to the substrate and vice versa. At each discontinuity 10i of track 8, a command is generated and transmitted via finger F to an information management unit, not shown, for example a microprocessor, allowing the reading of the present code. Similarly, the other tracks 11i corresponding to the contacts A, B, D and E have discontinuities 12i of the same nature as the discontinuities 10i of track 8 corresponding to contact F. These discontinuities 12i determine a change of state of the switch, and are advantageously positioned at the center of the angle formed by two stable positions 4i of axis 2 of the switch, either in the figure, in the middle of two successive slots 9i of track 8 corresponding to contact F. As a result, mechanical manufacturing tolerances are overcome by avoiding that contacts A, B, D and E overlap the two zones 5 and 6 for the same stable position 4i. The particular structure given to track 8 in the form of symmetrical slots 9i also allows the switch to operate in both directions of rotation.

Dans une utilisation en parallèle (ou en matrice) de plusieurs commutateurs du type selon l'invention, le contact C permet la sélection d'un ou de plusieurs commutateurs en alimentant ou pas la zone conductrice 5 des galettes 1 des commutateurs. Pour cette utilisation, il est indispensable d'isoler les contacts A, B, D et E d'un commutateur par rapport aux autres commutateurs, par exemple par des diodes non représentées afin que les commutateurs présentent un état haute impédance les uns par rapport aux autres. Dans une autre utilisation, la galette 1 peut être réalisée en circuits imprimés double face. Chaque face de la galette 1 recevant des contacts métalliques solidaires d'une même partie fixe, ce qui donne pour une position stable 4i de l'axe du commutateur deux codes distincts pour un seul commutateur.In a parallel (or matrix) use of several switches of the type according to the invention, the contact C allows the selection of one or more switches by supplying or not supplying the conductive area 5 of the wafers 1 of the switches. For this use, it is essential to isolate the contacts A, B, D and E of a switch with respect to the other switches, for example by diodes not shown so that the switches have a high impedance state with respect to the other. In another use, the wafer 1 can be produced in double-sided printed circuits. Each face of the wafer 1 receiving metal contacts integral with the same fixed part, which gives a stable position 4i of the axis of the switch two separate codes for a single switch.

La description ne se limite pas à l'exemple précisément décrit. En particulier, la position et le nombre des contacts peuvent être différents. La zone conductrice et la zone isolante peuvent être réalisées dans d'autre matériau et être représentées différemment ainsi que les discontinuités. Tout type de contacts métalliques assurant une liaison mécanique et électrique avec la ou les faces de la galette rentre dans le cadre de la présente invention. De même le nombre de positions stables peut varier suivant l'application.The description is not limited to the example precisely described. In particular, the position and the number of contacts can be different. The conductive area and the insulating area can be made of other material and be represented differently as well as the discontinuities. Any type of metal contact ensuring a mechanical and electrical connection with the face or faces of the cake falls within the scope of the present invention. Similarly, the number of stable positions may vary depending on the application.

Claims (5)

Commutateur comportant au moins une galette (1) centrée et fixée autour d'un axe (2) dont au moins une de ses faces comporte une zone conductrice (5) et une zone isolante (6), la zone conductrice (5) définissant un conducteur électrique en forme de couronnes concentriques, et comportant au moins une partie fixe comportant au moins un conducteur électrique permettant d'établir une liaison mécanique et électrique entre la galette (1) et la partie fixe du commutateur suivant une position stable (4i) déterminée par la position de l'axe (2) du commutateur, caractérisé en ce qu'au moins une première couronne (8) comporte des discontinuités (10i) définies par la transition entre la zone conductrice (5) et la zone isolante (6) de la galette (1) et inversement, générant pour chaque discontinuité (10i) par l'intermédiaire d'un contact (F) en liaison avec la première couronne (8) une commande permettant la lecture d'un état déterminé du commutateur pour chaque changement de position stable (4i) de l'axe (2) du commutateur,
   en ce qu'au moins une deuxième couronne (11i) concentrique à la première couronne (8) comporte des discontinuités (12i), de même nature que les discontinuités (10i) de la première couronne (8), comprises entre deux discontinuités (10i) successives de la première couronne (8), chaque discontinuité (10i) de la deuxième couronne (11i) correspondant à un changement d'état du commutateur,
   en ce que la partie fixe comporte au moins un contact en liaison permanente avec la zone conductrice (5) de la galette (1), permettant d'imposer un état logique déterminé à la zone conductrice (5) de la galette (1),
   en ce que la partie fixe comporte au moins un contact en liaison avec la première couronne (8),
   et en ce que la partie fixe comporte au moins un contact en liaison avec la deuxième couronne (11i) donnant l'état du commutateur correspondant à une position stable (4i) de l'axe (2) du commutateur.Switch comprising at least one wafer (1) centered and fixed around an axis (2) of which at least one of its faces comprises a conductive zone (5) and an insulating zone (6), the conductive zone (5) defining a electrical conductor in the form of concentric rings, and comprising at least one fixed part comprising at least one electric conductor making it possible to establish a mechanical and electrical connection between the wafer (1) and the fixed part of the switch in a determined stable position (4i) by the position of the axis (2) of the switch, characterized in that at least one first ring (8) has discontinuities (10i) defined by the transition between the conductive area (5) and the insulating area (6) of the wafer (1) and vice versa, generating for each discontinuity (10i) via a contact (F) in connection with the first ring (8) a command allowing the reading of a determined state of the switch for each change of stable position (4i) of the axis (2) of the switch,
in that at least one second ring (11i) concentric with the first ring (8) has discontinuities (12i), of the same nature as the discontinuities (10i) of the first ring (8), comprised between two discontinuities (10i ) successive of the first ring (8), each discontinuity (10i) of the second ring (11i) corresponding to a change of state of the switch,
in that the fixed part comprises at least one contact in permanent connection with the conductive area (5) of the wafer (1), making it possible to impose a determined logic state on the conductive area (5) of the wafer (1),
in that the fixed part comprises at least one contact in connection with the first ring (8),
and in that the fixed part comprises at least one contact in connection with the second ring (11i) giving the state of the switch corresponding to a stable position (4i) of the axis (2) of the switch. Commutateur selon la revendication 1, caractérisé en ce que la galette (1) est réalisée en circuit imprimé, la zone conductrice (5) étant constituée par une métallisation partielle d'au moins une des faces de la galette (1) et la zone isolante (6) étant constituée par le substrat du circuit imprimé.Switch according to claim 1, characterized in that the wafer (1) is made in printed circuit, the conductive area (5) being constituted by a partial metallization of at least one of the faces of the wafer (1) and the insulating zone (6) being constituted by the substrate of the printed circuit. Commutateur selon la revendication 1, caractérisé en ce que chaque contact (A à F) métallique de la partie fixe est aligné sur une même droite (3) passant par le centre de la galette (1) et tangente respectivement leur couronne respective suivant l'axe médian de la couronne.Switch according to claim 1, characterized in that each metallic contact (A to F) of the fixed part is aligned on the same straight line (3) passing through the center of the wafer (1) and tangent respectively to their respective crowns according to the median axis of the crown. Commutateur selon la revendication 3, caractérisé en ce que le contact métallique comporte une lame dont l'extrémité est façonnée pour assurer un contact souple et permanent avec un moins une des faces de la galette (1) et dont l'autre extrémité est solidaire de la partie fixe du commutateur.Switch according to claim 3, characterized in that the metal contact comprises a blade whose end is shaped to ensure flexible and permanent contact with at least one of the faces of the wafer (1) and whose other end is integral with the fixed part of the switch. Commutateur selon l'une quelconque des revendications 1 à 4 caractérisé en ce que les couronnes sont reliées électriquement les unes aux autres pour former une même zone conductrice (5).Switch according to any one of Claims 1 to 4, characterized in that the rings are electrically connected to each other to form the same conductive zone (5).
EP19930401728 1992-07-03 1993-07-02 Switch with rotor for radio transceiver Expired - Lifetime EP0577521B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9208211 1992-07-03
FR9208211A FR2693332B1 (en) 1992-07-03 1992-07-03 SWITCH WITH GALETTE FOR RADIO-TRANSCEIVER STATION.

Publications (2)

Publication Number Publication Date
EP0577521A1 true EP0577521A1 (en) 1994-01-05
EP0577521B1 EP0577521B1 (en) 1998-03-04

Family

ID=9431498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930401728 Expired - Lifetime EP0577521B1 (en) 1992-07-03 1993-07-02 Switch with rotor for radio transceiver

Country Status (3)

Country Link
EP (1) EP0577521B1 (en)
DE (1) DE69317167T2 (en)
FR (1) FR2693332B1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1640092A1 (en) * 1967-06-24 1970-05-21 Lehner Fernsprech Signal Ripple control receiver of a remote switchgear operating according to the pulse selection process
US3793496A (en) * 1971-08-25 1974-02-19 Copal Co Ltd Gear and clutch operating mechanism for multi-channel television tuner
US3935568A (en) * 1971-11-24 1976-01-27 Lem Instrument Corporation Universal analog-to-digital converter using the same information disc for different output codes
GB2188460A (en) * 1986-03-25 1987-09-30 Roneo Alcatel Ltd Method and apparatus for positioning a member
US4758693A (en) * 1987-10-01 1988-07-19 Amp Incorporated Encoding substrate for rotary switch assembly
EP0403862A2 (en) * 1989-06-21 1990-12-27 EATON CONTROLS SpA Printed circuit with circumferential connections

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1640092A1 (en) * 1967-06-24 1970-05-21 Lehner Fernsprech Signal Ripple control receiver of a remote switchgear operating according to the pulse selection process
US3793496A (en) * 1971-08-25 1974-02-19 Copal Co Ltd Gear and clutch operating mechanism for multi-channel television tuner
US3935568A (en) * 1971-11-24 1976-01-27 Lem Instrument Corporation Universal analog-to-digital converter using the same information disc for different output codes
GB2188460A (en) * 1986-03-25 1987-09-30 Roneo Alcatel Ltd Method and apparatus for positioning a member
US4758693A (en) * 1987-10-01 1988-07-19 Amp Incorporated Encoding substrate for rotary switch assembly
EP0403862A2 (en) * 1989-06-21 1990-12-27 EATON CONTROLS SpA Printed circuit with circumferential connections

Also Published As

Publication number Publication date
FR2693332A1 (en) 1994-01-07
DE69317167T2 (en) 1998-07-09
FR2693332B1 (en) 1994-08-05
EP0577521B1 (en) 1998-03-04
DE69317167D1 (en) 1998-04-09

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