EP0704588A1 - Electronic identification device - Google Patents

Electronic identification device Download PDF

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Publication number
EP0704588A1
EP0704588A1 EP95114201A EP95114201A EP0704588A1 EP 0704588 A1 EP0704588 A1 EP 0704588A1 EP 95114201 A EP95114201 A EP 95114201A EP 95114201 A EP95114201 A EP 95114201A EP 0704588 A1 EP0704588 A1 EP 0704588A1
Authority
EP
European Patent Office
Prior art keywords
plate
opening
face
intermediate wall
identification device
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
EP95114201A
Other languages
German (de)
French (fr)
Other versions
EP0704588B1 (en
Inventor
Juan Alain
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EM Microelectronic Marin SA
Original Assignee
EM Microelectronic Marin SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EM Microelectronic Marin SA filed Critical EM Microelectronic Marin SA
Publication of EP0704588A1 publication Critical patent/EP0704588A1/en
Application granted granted Critical
Publication of EP0704588B1 publication Critical patent/EP0704588B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00944—Details of construction or manufacture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7051—Using a powered device [e.g., motor]
    • Y10T70/7062—Electrical type [e.g., solenoid]
    • Y10T70/7068—Actuated after correct combination recognized [e.g., numerical, alphabetical, or magnet[s] pattern]
    • Y10T70/7073—Including use of a key
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/778—Operating elements
    • Y10T70/7791—Keys
    • Y10T70/7802—Multi-part structures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/778—Operating elements
    • Y10T70/7791—Keys
    • Y10T70/7904—Magnetic features

Definitions

  • the present invention relates to an electronic identification device, in particular intended for controlling access to an enclosed space.
  • the present invention relates to a key comprising an electronic unit and at least one external electrical contact pad electrically connected to this electronic unit.
  • This key is intended to be associated with an electronic lock comprising at least one electrical contact terminal arranged so that this terminal is in contact with the external electrical contact pad of the key when the latter is inserted in the electronic lock.
  • the object of the invention is to provide an identification device comprising a conductive body having first and second substantially parallel faces, an electronic identification unit and an external electrical contact pad provided on each of the first and second faces, these two external electrical contact pads having substantially the same electrical potential and being connected jointly to the electronic identification unit.
  • Another object of the invention is to provide such an identification device which can easily be integrated into a key and which has good resistance to mechanical stresses, in particular to mechanical stresses generated on either of the electrical contact pads. external.
  • the intermediate wall ensures the positioning of the first and second plates and guarantees great strength in the assembly of the various elements necessary for the identification function of the identification device according to the invention. It will also be noted that a particular advantage of the invention results from the fact that no protuberance or projection is generated by the identification device, which is particularly advantageous for a key.
  • FIGS. 1 to 4 an embodiment of an identification device according to the invention will be described below.
  • This device is formed by a key 1 intended to be associated with an electronic lock (not shown) known to those skilled in the art.
  • the key 1 is shown quite schematically without boss or recess provided on its two faces and without teeth provided on the periphery of this key. However, it should be noted that such an arrangement is without other possible together with the various elements necessary for the identification function integrated in the key 1 which will be described below.
  • the key 1 comprises an electronic identification unit 2 and at least two external electrical contact surfaces 4 and 6, these two contact surfaces 4 and 6 being electrically connected to each other and jointly with the electronic unit 2 as will be described more precisely below.
  • the key 1 comprises a first recess 8, a second recess 10 and an opening 12 connecting the two recesses 8 and 10.
  • the opening 12 is arranged in an intermediate wall 14 separating the two recesses 8 and 10.
  • the intermediate wall 14 belongs to the body 16 of the key 1, this body 16 having a first face 18 and a second face 20 parallel to one another. It will be noted that the recesses 8 and 10 are arranged one opposite the other.
  • the opening 12 is provided in the central region of the intermediate wall 14.
  • the key 1 further comprises a first conductive part 22, comprising a plate 24 and a stud 26, and a second conductive part 28 comprising a plate 30 and a projection 32 extending from the central region of the plate 30 in the direction of the plate 24
  • a blind hole 34 is arranged in the part 28 so that the projection 32 has substantially the shape of a ring.
  • the plates 24 and 30 are respectively arranged in the recesses 8 and 10.
  • the stud 26 is forced out into the blind hole 34 through the opening 12. It will be noted more precisely that the projection 32 engages in the opening 12 without being in contact with the side wall thereof and that the stud 26 passes right through this opening. It results from the assembly described above that the conductive parts 22 and 24 are electrically connected to each other.
  • the identification device also includes a plate 38 formed of a non-conductive material and located between the first plate 24 and the intermediate wall 14.
  • This plate 38 has in its central part an opening 40 through which the stud 26 passes.
  • the plate 38 has substantially the radial dimensions of the recess 8. As a result, it positions the part 22 and also the part 28 together with the intermediate wall 14. It will be noted that the opening 40 is substantially aligned with the opening 12 provided in the body 16.
  • the parts 22 and 28 are arranged in the body 16 so that it has no points of electrical contact with this body 16.
  • a first conductive pad 48 arranged in the peripheral zone of this face 46.
  • the pad 48 is held by pressure in abutment against the intermediate wall 14 and therefore in electrical contact with the latter.
  • a second conductive pad 50 In the central zone of the face 46 of the plate 38 is provided a second conductive pad 50, this second pad 50 extending continuously from this central zone into the opening 40 and on the second face 52 of the plate 38.
  • the second pad 50 is held by pressure in abutment against the plate 24 of the part 22 and therefore in electrical contact with this plate 24.
  • the pad 50 is arranged on the face 46 of the plate 38 so that '' it has no point of electrical contact with the intermediate wall 14.
  • the track 50 is arranged on the face 52 of the plate 38 so that it is without electrical contact with the side wall of the recess 8.
  • the plate 38 forms the substrate of a double-sided printed circuit .
  • the electronic unit 2 is arranged on the face 46 of the plate 38, a housing 56 being provided between the plate 38 and the plate 30 for this electronic unit 2.
  • This housing 56 is formed by a through opening provided in the intermediate wall 14 .
  • the electronic unit 2 is electrically connected by electrical connection means 58 to the conductive surface 48 and by electrical connection means 60 to the conductive surface 50. It will be noted that the electronic unit 2 and the electrical connection means 58 and 60 are wrapped in resin 62.
  • FIG. 5 shows an alternative embodiment of the identification device described above. The references already described previously will not be described again here.
  • This variant differs from the embodiment described above by the fact that there is provided an insulating part 66 having substantially the shape of a ring, this insulating part 66 being arranged between the side wall 68 of the plate 24 and the wall side 70 of the recess 8. Similarly, an insulating part 72 is also provided between the lateral surface 74 of the plate 30 and the lateral surface 76 of the recess 10. This insulating part 72 is formed in one piece with the insulating layer 44. According to this variant, the electrical insulation of the conductive parts 22 and 28 is perfectly ensured and the conductive pads 48 and 50 are protected.
  • the insulating parts 66 and 72 may have a certain elasticity so as to absorb mechanical stresses exerted on the faces. 4 and 6 of the plates 24 and 30, while ensuring the maintenance of the electrical contacts described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Noodles (AREA)
  • Optical Communication System (AREA)
  • Lock And Its Accessories (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Casings For Electric Apparatus (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)

Abstract

Cylindrical recesses (8, 10), formed on opposite sides (18, 20) of the key blade (1), are slightly greater in diameter than the corresponding paired disks (22, 28) of conducting material, of which one has a central stub (26) press-fitted into a socketed boss (32, 34) on the other. A space (12), separating the boss from the surrounding key material (14), extends at one point to accommodate (56) the resin-encapsulated (62) identifier circuit (2), which is electrically connected (60) to the interconnected disks, and (58) to the blade. Annular insulating plates (38, 44) separate the main disks from the intermediate areas (14) of the blade, and locate them positively within their recesses. The disk and blade connections (60, 58) are completed via shaped conducting areas (48, 50) provided on the thicker insulating plate (38). Opt., disks have solid insulating seats.

Description

La présente invention concerne un dispositif d'identification électronique, notamment destiné au contrôle de l'accès à un local clos.The present invention relates to an electronic identification device, in particular intended for controlling access to an enclosed space.

Plus particulièrement, la présente invention concerne une clé comprenant une unité électronique et au moins une plage de contact électrique externe reliée électriquement à cette unité électronique. Cette clé est destinée à être associée avec une serrure électronique comprenant au moins une borne de contact électrique agencée de manière que cette borne soit en contact avec la plage de contact électrique externe de la clé lorsque celle-ci est insérée dans la serrure électronique.More particularly, the present invention relates to a key comprising an electronic unit and at least one external electrical contact pad electrically connected to this electronic unit. This key is intended to be associated with an electronic lock comprising at least one electrical contact terminal arranged so that this terminal is in contact with the external electrical contact pad of the key when the latter is inserted in the electronic lock.

Le but de l'invention est de fournir un dispositif d'identification comprenant un corps conducteur présentant des première et deuxième faces sensiblement parallèles, une unité électronique d'identification et une plage de contact électrique externe prévue sur chacune des première et deuxième faces, ces deux plages de contact électrique externes ayant sensiblement un même potentiel électrique et étant reliées conjointement à l'unité électronique d'identification.The object of the invention is to provide an identification device comprising a conductive body having first and second substantially parallel faces, an electronic identification unit and an external electrical contact pad provided on each of the first and second faces, these two external electrical contact pads having substantially the same electrical potential and being connected jointly to the electronic identification unit.

Un autre but de l'invention est de fournir un tel dispositif d'identification pouvant aisément être intégré dans inne clé et présentant une bonne résistance aux contraintes mécaniques, notamment aux contraintes mécaniques engendrées sur l'une ou l'autre des plages de contact électrique externes.Another object of the invention is to provide such an identification device which can easily be integrated into a key and which has good resistance to mechanical stresses, in particular to mechanical stresses generated on either of the electrical contact pads. external.

Ces buts sont atteints grâce au dispositif d'identification selon l'invention, lequel comprend un corps conducteur présentant inne première face et une deuxième face sensiblement parallèles, une unité électronique d'identification et au moins une surface de contact électrique externe reliée électriquement à ladite unité électronique, ce dispositif étant caractérisé en ce qu'il comprend :

  • un premier évidement et un deuxième évidement agencés dans ledit corps et débouchant respectivement sur lesdites première et deuxième faces, ces premier et deuxième évidements étant disposés sensiblement l'un en face de l'autre et séparés l'un de l'autre par une paroi intermédiaire appartenant audit corps conducteur,
  • une première ouverture prévue dans ladite paroi intermédiaire entre ledit premier évidement et ledit deuxième évidement,
  • une première pièce conductrice et une deuxième pièce conductrice comprenant respectivement un premier plateau et un deuxième plateau agencés respectivement dans lesdits premier et deuxième évidements de manière à ne présenter aucun contact électrique avec les parois latérales de ces évidements, la face externe dudit premier plateau formant ladite surface de contact,
  • des moyens d'assemblage pour relier mécaniquement et électriquement lesdits premier et deuxième plateaux à travers ladite première ouverture, ladite unité électronique étant située entre ces premier et deuxième plateaux,
  • une plaque non-conductrice agencée au moins partiellement entre ledit premier plateau et ladite paroi intermédiaire, cette plaque comprenant une deuxième ouverture sensiblement alignée sur ladite première ouverture et une première plage conductrice en liaison électrique avec ladite paroi intermédiaire et reliée électriquement à ladite unité électronique, cette plaque comprenant en outre une deuxième plage conductrice en liaison électrique avec ledit premier plateau et relié électriquement à ladite unité électronique,
  • une couche isolante agencée entre ladite paroi intermédiaire et ledit deuxième plateau.
These aims are achieved by means of the identification device according to the invention, which comprises a conductive body having a substantially parallel first face and a second face, an electronic identification unit and at least one external electrical contact surface electrically connected to said electronic unit, this device being characterized in that it comprises:
  • a first recess and a second recess arranged in said body and opening respectively on said first and second faces, these first and second recesses being arranged substantially one opposite the other and separated from each other by a wall intermediate belonging to said conductive body,
  • a first opening provided in said intermediate wall between said first recess and said second recess,
  • a first conductive part and a second conductive part respectively comprising a first plate and a second plate arranged respectively in said first and second recesses so as to have no electrical contact with the side walls of these recesses, the external face of said first plate forming said contact surface,
  • assembly means for mechanically and electrically connecting said first and second plates through said first opening, said electronic unit being situated between these first and second plates,
  • a non-conductive plate arranged at least partially between said first plate and said intermediate wall, this plate comprising a second opening substantially aligned with said first opening and a first conductive pad in electrical connection with said intermediate wall and electrically connected to said electronic unit, this plate further comprising a second conductive pad in electrical connection with said first plate and electrically connected to said electronic unit,
  • an insulating layer arranged between said intermediate wall and said second plate.

Il résulte des caractéristiques susmentionnées un dispositif d'identification compact, résistant, de montage simple et peu onéreux. La paroi intermédiaire assure le positionnement des premier et deuxième plateaux et garantit une grande solidité de l'assemblage des divers éléments nécessaires à la fonction d'identification du dispositif d'identification selon l'invention. On notera encore qu'un avantage particulier de l'invention résulte du fait qu'aucune protubérance ou saillie n'est engendrée par le dispositif d'identification, ce qui est particulièrement avantageux pour une clé.It results from the above characteristics a compact, resistant identification device, mounting simple and inexpensive. The intermediate wall ensures the positioning of the first and second plates and guarantees great strength in the assembly of the various elements necessary for the identification function of the identification device according to the invention. It will also be noted that a particular advantage of the invention results from the fact that no protuberance or projection is generated by the identification device, which is particularly advantageous for a key.

D'autres caractéristiques et avantages de l'invention seront décrits également ci-après à l'aide de la description suivante, faite en référence aux dessins annexés, donnés à titre nullement limitatifs, sur lesquels :

  • la figure 1 montre schématiquement une vue d'ensemble d'un dispositif d'identification électronique selon l'invention;
  • la figure 2 est une coupe schématique selon la ligne de II-II de la figure 1;
  • la figure 3 est une coupe selon la ligne III-III de la figure 2;
  • la figure 4 est une coupe selon la ligne IV-IV de la figure 2; et
  • la figure 5 est une variante de réalisation du dispositif d'identification représenté à la figure 2.
Other characteristics and advantages of the invention will also be described below with the aid of the following description, given with reference to the appended drawings, given by way of non-limitation, in which:
  • Figure 1 schematically shows an overview of an electronic identification device according to the invention;
  • Figure 2 is a schematic section along the line of II-II of Figure 1;
  • Figure 3 is a section along line III-III of Figure 2;
  • Figure 4 is a section along the line IV-IV of Figure 2; and
  • FIG. 5 is an alternative embodiment of the identification device shown in FIG. 2.

A l'aide des figures 1 à 4, on décrira ci-après un mode de réalisation d'un dispositif d'identification selon l'invention.Using FIGS. 1 to 4, an embodiment of an identification device according to the invention will be described below.

Ce dispositif est formé par une clé 1 destinée à être associée à une serrure électronique (non-représentée) connue de l'homme du métier.This device is formed by a key 1 intended to be associated with an electronic lock (not shown) known to those skilled in the art.

Sur la figure 1, la clé 1 est représentée de manière tout à fait schématique sans bossage ou évidement prévu sur ses deux faces et sans denture prévue sur le pourtour de cette clé. Toutefois, on notera qu'un tel agencement est sans autre possible conjointement aux divers éléments nécessaires à la fonction d'identification intégrés dans la clé 1 qui vont être décrits ci-après.In Figure 1, the key 1 is shown quite schematically without boss or recess provided on its two faces and without teeth provided on the periphery of this key. However, it should be noted that such an arrangement is without other possible together with the various elements necessary for the identification function integrated in the key 1 which will be described below.

La clé 1 comprend une unité électronique d'identification 2 et au moins deux surfaces de contact électriques externes 4 et 6, ces deux surfaces de contact 4 et 6 étant reliées électriquement l'une à l'autre et conjointement à l'unité électronique 2 comme cela sera décrit plus précisément ci-après. La clé 1 comprend un premier évidement 8, un deuxième évidement 10 et une ouverture 12 reliant les deux évidements 8 et 10. L'ouverture 12 est agencée dans une paroi intermédiaire 14 séparant les deux évidements 8 et 10. La paroi intermédiaire 14 appartient au corps 16 de la clé 1, ce corps 16 présentant une première face 18 et une deuxième face 20 parallèles l'une à l'autre. On remarquera que les évidements 8 et 10 sont disposés l'un en face de l'autre. L'ouverture 12 est prévue dans la région centrale de la paroi intermédiaire 14.The key 1 comprises an electronic identification unit 2 and at least two external electrical contact surfaces 4 and 6, these two contact surfaces 4 and 6 being electrically connected to each other and jointly with the electronic unit 2 as will be described more precisely below. The key 1 comprises a first recess 8, a second recess 10 and an opening 12 connecting the two recesses 8 and 10. The opening 12 is arranged in an intermediate wall 14 separating the two recesses 8 and 10. The intermediate wall 14 belongs to the body 16 of the key 1, this body 16 having a first face 18 and a second face 20 parallel to one another. It will be noted that the recesses 8 and 10 are arranged one opposite the other. The opening 12 is provided in the central region of the intermediate wall 14.

La clé 1 comprend en outre une première pièce conductrice 22, comprenant un plateau 24 et un téton 26, et une deuxième pièce conductrice 28 comprenant un plateau 30 et une saillie 32 s'étendant depuis la région centrale du plateau 30 en direction du plateau 24. Un trou borgne 34 est agencé dans la pièce 28 de telle manière que la saillie 32 a sensiblement la forme d'un anneau. Les plateaux 24 et 30 sont respectivement disposés dans les évidements 8 et 10. Le téton 26 est chassé à force dans le trou borgne 34 à travers l'ouverture 12. On notera plus précisément que la saillie 32 s'engage dans l'ouverture 12 sans être en contact avec la paroi latérale de celle-ci et que le téton 26 traverse de part en part cette ouverture. Il résulte du montage décrit ci-avant que les pièces conductrices 22 et 24 sont reliées électriquement l'une à l'autre.The key 1 further comprises a first conductive part 22, comprising a plate 24 and a stud 26, and a second conductive part 28 comprising a plate 30 and a projection 32 extending from the central region of the plate 30 in the direction of the plate 24 A blind hole 34 is arranged in the part 28 so that the projection 32 has substantially the shape of a ring. The plates 24 and 30 are respectively arranged in the recesses 8 and 10. The stud 26 is forced out into the blind hole 34 through the opening 12. It will be noted more precisely that the projection 32 engages in the opening 12 without being in contact with the side wall thereof and that the stud 26 passes right through this opening. It results from the assembly described above that the conductive parts 22 and 24 are electrically connected to each other.

Le dispositif d'identification comporte également une plaque 38 formée d'un matériau non-conducteur et située entre le premier plateau 24 et la paroi intermédiaire 14. Cette plaque 38 présente dans sa partie centrale une ouverture 40 traversée par le téton 26. La plaque 38 a sensiblement les dimensions radiales de l'évidement 8. De ce fait, elle positionne la pièce 22 et également la pièce 28 conjointement avec la paroi intermédiaire 14. On notera que l'ouverture 40 est sensiblement alignée sur l'ouverture 12 prévue dans le corps 16.The identification device also includes a plate 38 formed of a non-conductive material and located between the first plate 24 and the intermediate wall 14. This plate 38 has in its central part an opening 40 through which the stud 26 passes. The plate 38 has substantially the radial dimensions of the recess 8. As a result, it positions the part 22 and also the part 28 together with the intermediate wall 14. It will be noted that the opening 40 is substantially aligned with the opening 12 provided in the body 16.

Afin d'isoler électriquement le corps 16 de l'ensemble formé par les pièces 22 et 28, il est prévu premièrement une couche isolante 44 agencée entre le plateau 30 et la paroi intermédiaire 14. Deuxièmement, les dimensions radiales des plateaux 24 et 30 sont inférieures aux dimensions des évidements 8 et 10. De même, les dimensions radiales de la saillie 32 sont inférieures aux dimensions de l'ouverture 12. Le positionnement des pièces 22 et 28 est assuré par la plaque 38 et également par les forces de frottement radiales engendrées par le pincement de la paroi 14, de la couche isolante 44 et de la plaque 38 par les plateaux 24 et 30. Ainsi, les pièces 22 et 28 sont agencées dans le corps 16 de manière à ce qu'elle ne présente aucun point de contact électrique avec ce corps 16.In order to electrically isolate the body 16 from the assembly formed by the parts 22 and 28, there is provided firstly an insulating layer 44 arranged between the plate 30 and the intermediate wall 14. Secondly, the radial dimensions of the plates 24 and 30 are smaller than the dimensions of the recesses 8 and 10. Similarly, the radial dimensions of the projection 32 are smaller than the dimensions of the opening 12. The positioning of the parts 22 and 28 is ensured by the plate 38 and also by the radial friction forces generated by pinching the wall 14, the insulating layer 44 and the plate 38 by the plates 24 and 30. Thus, the parts 22 and 28 are arranged in the body 16 so that it has no points of electrical contact with this body 16.

Sur la face 46 de la plaque 38 est prévue une première plage conductrice 48 agencée dans la zone périphérique de cette face 46. La plage 48 est maintenue par pression en appui contre la paroi intermédiaire 14 et par conséquent en contact électrique avec celle-ci. Dans la zone centrale de la face 46 de la plaque 38 est prévue une deuxième plage conductrice 50, cette deuxième plage 50 s'étendant de manière continue de cette zone centrale dans l'ouverture 40 et sur la deuxième face 52 de la plaque 38. La deuxième plage 50 est maintenue par pression en appui contre le plateau 24 de la pièce 22 et par conséquent en contact électrique avec ce plateau 24. On notera que la plage 50 est agencée sur la face 46 de la plaque 38 de manière à ce qu'elle ne présente aucun point de contact électrique avec la paroi intermédiaire 14. De même, la plage 50 est agencée sur la face 52 de la plaque 38 de manière à ce qu'elle soit sans contact électrique avec la paroi latérale de l'évidement 8. On notera également que la plaque 38 forme le substrat d'un circuit imprimé double faces.On the face 46 of the plate 38 is provided a first conductive pad 48 arranged in the peripheral zone of this face 46. The pad 48 is held by pressure in abutment against the intermediate wall 14 and therefore in electrical contact with the latter. In the central zone of the face 46 of the plate 38 is provided a second conductive pad 50, this second pad 50 extending continuously from this central zone into the opening 40 and on the second face 52 of the plate 38. The second pad 50 is held by pressure in abutment against the plate 24 of the part 22 and therefore in electrical contact with this plate 24. It will be noted that the pad 50 is arranged on the face 46 of the plate 38 so that '' it has no point of electrical contact with the intermediate wall 14. Similarly, the track 50 is arranged on the face 52 of the plate 38 so that it is without electrical contact with the side wall of the recess 8. It will also be noted that the plate 38 forms the substrate of a double-sided printed circuit .

L'unité électronique 2 est disposée sur la face 46 de la plaque 38, un logement 56 étant prévu entre la plaque 38 et la plateau 30 pour cette unité électronique 2. Ce logement 56 est formé par une ouverture traversante prévue dans la paroi intermédiaire 14.The electronic unit 2 is arranged on the face 46 of the plate 38, a housing 56 being provided between the plate 38 and the plate 30 for this electronic unit 2. This housing 56 is formed by a through opening provided in the intermediate wall 14 .

L'unité électronique 2 est reliée électriquement par des moyens de liaison électrique 58 à la plage conductrice 48 et par des moyens de liaison électrique 60 à la plage conductrice 50. On remarquera que l'unité électronique 2 et les moyens de liaison électrique 58 et 60 sont enveloppés de résine 62.The electronic unit 2 is electrically connected by electrical connection means 58 to the conductive surface 48 and by electrical connection means 60 to the conductive surface 50. It will be noted that the electronic unit 2 and the electrical connection means 58 and 60 are wrapped in resin 62.

Sur la figure 5 est représenté une variante de réalisation du dispositif d'identification décrit ci-avant. Les références déjà décrites précédemment ne seront pas décrites à nouveau ici.FIG. 5 shows an alternative embodiment of the identification device described above. The references already described previously will not be described again here.

Cette variante se distingue du mode de réalisation décrit ci-avant par le fait qu'il est prévu une partie isolante 66 présentant sensiblement la forme d'un anneau, cette partie isolante 66 étant agencée entre la paroi latérale 68 du plateau 24 et la paroi latérale 70 de l'évidement 8. De même, il est également prévu une partie isolante 72 entre la surface latérale 74 du plateau 30 et la surface latérale 76 de l'évidement 10. Cette partie isolante 72 est formée d'une seule pièce avec la couche isolante 44. Selon cette variante, l'isolation électrique des pièces conductrices 22 et 28 est parfaitement assurée et les plages conductrices 48 et 50 sont protégées.This variant differs from the embodiment described above by the fact that there is provided an insulating part 66 having substantially the shape of a ring, this insulating part 66 being arranged between the side wall 68 of the plate 24 and the wall side 70 of the recess 8. Similarly, an insulating part 72 is also provided between the lateral surface 74 of the plate 30 and the lateral surface 76 of the recess 10. This insulating part 72 is formed in one piece with the insulating layer 44. According to this variant, the electrical insulation of the conductive parts 22 and 28 is perfectly ensured and the conductive pads 48 and 50 are protected.

On mentionnera finalement que les parties isolantes 66 et 72, tout comme la couche isolante 44 et la plaque 38 peuvent présenter une certaine élasticité de manière à absorber des contraintes mécaniques exercées sur les faces 4 et 6 des plateaux 24 et 30, tout en assurant le maintien des contacts électriques décrits ci-avant.Finally, it will be mentioned that the insulating parts 66 and 72, like the insulating layer 44 and the plate 38 may have a certain elasticity so as to absorb mechanical stresses exerted on the faces. 4 and 6 of the plates 24 and 30, while ensuring the maintenance of the electrical contacts described above.

Claims (7)

Dispositif d'identification (1) comprenant un corps conducteur (16) présentant une première face (18) et une deuxième face (20) sensiblement parallèles, une unité électronique d'identification (2) et au moins une surface (4) de contact électrique externe reliée électriquement à ladite unité électronique, ce dispositif étant caractérisé en ce qu'il comprend : - un premier évidement (8) et un deuxième évidement (10) agencés dans ledit corps (16) et débouchant respectivement sur lesdites première et deuxième faces (18, 20), ces premier et deuxième évidements étant disposés sensiblement l'un en face de l'autre et séparés l'un de l'autre par une paroi intermédiaire (14) appartenant audit corps conducteur (16), - une première ouverture (12) prévue dans ladite paroi intermédiaire entre ledit premier évidement (8) et ledit deuxième évidement (10), - une première pièce conductrice (22) et une deuxième pièce conductrice (28) comprenant respectivement un premier plateau (24) et un deuxième plateau (30) agencés respectivement dans lesdits premier et deuxième évidements de manière à ne présenter aucun contact électrique avec les parois latérales (70, 76) de ces évidements, la face externe (4) dudit premier plateau (24) formant ladite surface de contact, - des moyens d'assemblage (26, 32, 34) pour relier mécaniquement et électriquement lesdits premier et deuxième plateaux (24, 30) à travers ladite première ouverture (12), ladite unité électronique (2) étant située entre ces premier et deuxième plateaux, - une plaque (38) non-conductrice agencée au moins partiellement entre ledit premier plateau (24) et ladite paroi intermédiaire (14), cette plaque comprenant une deuxième ouverture (40) sensiblement alignée sur ladite première ouverture (12) et une première plage conductrice (48) en liaison électrique avec ladite paroi intermédiaire et reliée électriquement à ladite unité électronique, cette plaque comprenant en outre une deuxième plage conductrice (50) en liaison électrique avec ledit premier plateau et relié électriquement à ladite unité électronique, - une couche isolante (44) agencée entre ladite paroi intermédiaire (14) et ledit deuxième plateau (30). Identification device (1) comprising a conductive body (16) having a first face (18) and a second face (20) substantially parallel, an electronic identification unit (2) and at least one contact surface (4) external electrically connected to said electronic unit, this device being characterized in that it comprises: - A first recess (8) and a second recess (10) arranged in said body (16) and opening respectively on said first and second faces (18, 20), these first and second recesses being arranged substantially one opposite of the other and separated from each other by an intermediate wall (14) belonging to said conductive body (16), - a first opening (12) provided in said intermediate wall between said first recess (8) and said second recess (10), - A first conductive part (22) and a second conductive part (28) respectively comprising a first plate (24) and a second plate (30) arranged respectively in said first and second recesses so as to have no electrical contact with the walls lateral (70, 76) of these recesses, the external face (4) of said first plate (24) forming said contact surface, - assembly means (26, 32, 34) for mechanically and electrically connecting said first and second plates (24, 30) through said first opening (12), said electronic unit (2) being located between these first and second trays, - a non-conductive plate (38) arranged at least partially between said first plate (24) and said intermediate wall (14), this plate comprising a second opening (40) substantially aligned with said first opening (12) and a first pad conductive (48) in electrical connection with said intermediate wall and electrically connected to said electronic unit, this plate further comprising a second conductive pad (50) in electrical connection with said first plate and electrically connected to said electronic unit, - an insulating layer (44) arranged between said intermediate wall (14) and said second plate (30). Dispositif d'identification selon la revendication 1, caractérisé en ce que lesdits moyens d'assemblage sont formés par un téton (26) faisant saillie dudit premier plateau (24) et par un trou borgne (34) agencé dans une saillie (32) de ladite deuxième pièce conductrice (28), ledit téton traversant ladite deuxième ouverture (40) et étant chassé dans ledit trou borgne, ladite saillie (32) et ledit téton (26) étant sans contact électrique avec ladite paroi intermédiaire (14).Identification device according to claim 1, characterized in that said assembly means are formed by a stud (26) projecting from said first plate (24) and by a blind hole (34) arranged in a projection (32) of said second conductive part (28), said stud passing through said second opening (40) and being driven into said blind hole, said projection (32) and said stud (26) being without electrical contact with said intermediate wall (14). Dispositif d'identification selon la revendication 1 ou 2, caractérisé en ce que ladite plaque (38) a une première face (46) et une deuxième face (52), et en ce qu'un logement (56) est prévu entre cette plaque (38) et ledit deuxième plateau (30) pour ladite unité électronique (2), cette dernière étant agencée sur ladite première face (46) de ladite plaque.Identification device according to claim 1 or 2, characterized in that said plate (38) has a first face (46) and a second face (52), and in that a housing (56) is provided between this plate (38) and said second plate (30) for said electronic unit (2), the latter being arranged on said first face (46) of said plate. Dispositif d'identification selon la revendication 3, caractérisé en ce que ladite première plage (48) est agencée dans une zone périphérique de ladite première face (46) de ladite plaque (38), ladite deuxième plage (50) étant agencée partiellement dans une zone centrale de cette première face sur laquelle débouche ladite deuxième ouverture (40), cette deuxième plage s'étendant de manière continue de cette zone centrale dans ladite deuxième ouverture et sur ladite deuxième face (52) de ladite plaque, ladite première plage (48) étant située au moins partiellement en regard de ladite paroi intermédiaire (14) et ladite deuxième plage (52) étant située au moins partiellement en regard dudit premier plateau (24), ladite plaque (38) étant en appui contre ledit premier plateau et contre ladite paroi intermédiaire.Identification device according to claim 3, characterized in that said first area (48) is arranged in a peripheral zone of said first face (46) of said plate (38), said second area (50) being partially arranged in a central area of this first face on which said second opening (40) opens, this second area extending continuously from this central area in said second opening and on said second face (52) of said plate, said first area (48 ) being located at least partially opposite said intermediate wall (14) and said second pad (52) being located at least partially opposite said first tray (24), said plate (38) being in abutment against said first tray and against said intermediate wall. Dispositif d'identification selon la revendication 3 ou 4, caractérisé en ce que ledit logement (56) est formé par une troisième ouverture traversante prévue dans ladite paroi intermédiaire (14).Identification device according to claim 3 or 4, characterized in that said housing (56) is formed by a third through opening provided in said intermediate wall (14). Dispositif d'identification selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu des parties isolantes (66, 72) pour isoler électriquement lesdits premier et deuxième plateaux (24, 30) desdites parois latérales (70, 76) desdits premier et deuxième évidements (8, 10).Identification device according to one of the preceding claims, characterized in that insulating parts (66, 72) are provided for electrically isolating said first and second plates (24, 30) from said side walls (70, 76) of said first and second recesses (8, 10). Dispositif d'identification selon l'une des revendications précédentes, caractérisé en ce qu'il constitue une clé (1) électronique, ledit corps conducteur (16) étant destiné à être introduit dans une serrure électronique munie d'au moins une borne de contact électrique agencée pour être en contact électrique avec un desdits premier et deuxième plateaux (24, 30) lorsque ce corps est introduit dans ladite serrure.Identification device according to one of the preceding claims, characterized in that it constitutes an electronic key (1), said conductive body (16) being intended to be inserted in an electronic lock provided with at least one contact terminal electrical arranged to be in electrical contact with one of said first and second plates (24, 30) when this body is introduced into said lock.
EP95114201A 1994-09-21 1995-09-11 Electronic identification device Expired - Lifetime EP0704588B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9411262A FR2724685B1 (en) 1994-09-21 1994-09-21 ELECTRONIC IDENTIFICATION DEVICE
FR9411262 1994-09-21

Publications (2)

Publication Number Publication Date
EP0704588A1 true EP0704588A1 (en) 1996-04-03
EP0704588B1 EP0704588B1 (en) 2000-05-17

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ID=9467136

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EP95114201A Expired - Lifetime EP0704588B1 (en) 1994-09-21 1995-09-11 Electronic identification device

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US (1) US5605067A (en)
EP (1) EP0704588B1 (en)
AT (1) ATE193083T1 (en)
DE (1) DE69516964T2 (en)
FR (1) FR2724685B1 (en)

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Also Published As

Publication number Publication date
FR2724685A1 (en) 1996-03-22
FR2724685B1 (en) 1996-12-20
US5605067A (en) 1997-02-25
ATE193083T1 (en) 2000-06-15
DE69516964T2 (en) 2000-12-14
EP0704588B1 (en) 2000-05-17
DE69516964D1 (en) 2000-06-21

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