EP0314222B1 - Electric energy transmission device - Google Patents

Electric energy transmission device Download PDF

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Publication number
EP0314222B1
EP0314222B1 EP19880202247 EP88202247A EP0314222B1 EP 0314222 B1 EP0314222 B1 EP 0314222B1 EP 19880202247 EP19880202247 EP 19880202247 EP 88202247 A EP88202247 A EP 88202247A EP 0314222 B1 EP0314222 B1 EP 0314222B1
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EP
European Patent Office
Prior art keywords
coil
cores
members
core
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP19880202247
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German (de)
French (fr)
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EP0314222A1 (en
Inventor
Hans-Dieter Heinen
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Ets R Heinen N V SA
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Ets R Heinen N V SA
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14Inductive couplings
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00777Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by induction
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14Inductive couplings
    • H01F2038/143Inductive couplings for signals
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00Closure fasteners
    • Y10T292/11Magnetic

Definitions

  • the present invention relates to a device for transferring electrical energy as defined in the preamble of claim 1.
  • Such a device for energy transfer is known in particular from DE-A 3612761.
  • This known device only allows the transfer of energy with a low power, that therefore only ensures the charging of a battery.
  • This battery is absolutely essential to accumulate the power necessary to control a door lock, for which this device is intended.
  • the battery controls the lock via the base of a transistor which allows an electric current to pass as soon as it reaches the threshold voltage of this transistor.
  • this known device has significant drawbacks resulting from the presence of a battery, in particular by the fact that there is reason to regularly check the state of the battery and that, despite a regular check, the risk still persists. that it becomes defective between two checks.
  • a lock controlled by means of a battery offers practically no security against burglary, since one can generally easily locate the battery in the door leaf and act on the lock by applying a sufficiently high voltage to the base of the transistor controlled by the battery, that is to say which is greater than the threshold voltage thereof.
  • One of the essential aims of the present invention is to remedy all these drawbacks and moreover to present a device of an extremely simple design which is very useful for the transfer not only of energy, but also of information of all kinds and this for practically any position of the two parts relative to each other.
  • the first respectively the second coil is connected in parallel on a first respectively a second capacitor to form resonant electrical circuits having the same resonant frequency, so that the transfer of energy takes place essentially at the resonant frequency of these circuits.
  • the two aforementioned parts being constituted by a frame, on the one hand, and a door or window leaf, on the other hand, the second coil with its core are mounted in the edge of said leaf , while the first coil with its core are mounted in the frame, so as to be located opposite the second coil with its core, when the leaf is in its closed position in the frame, and thus form a minimum air gap between the magnetic cores of the two coils.
  • Figure 1 is a perspective view of a door equipped with an energy and information transfer device according to this particular embodiment of the invention.
  • Figure 2 is an elevational view, partially broken, of the door in the closed position.
  • FIG. 3 is a schematic representation of the electrical circuit of this particular embodiment of the energy and information transfer device according to the invention.
  • Figure 4 is, on a larger scale, a representation of a detail of an essential element of the device according to the invention.
  • FIG. 5 is a schematic representation of another detail of this essential element of the device according to this particular embodiment of the invention.
  • the invention relates, in general, to a device for transferring electrical energy and / or information between any two parts which are movable relative to one another.
  • this device finds especially its application for the transfer of energy between a frame and a door leaf and / or opening window mounted in this frame, between a cover and the edges of the access of an enclosure closed by this cover and, finally, between a drawer and a frame in which this drawer can slide.
  • This device comprises a first electrically conductive coil comprising an insulated conductive wire wound on a first magnetic core, for example made of ferrite, and a second electrically conductive coil, the number and diameter of the turns of which may be the same or different from number and diameter of those of the first coil, which is wound on a second magnetic core, for example also made of ferrite, the shape and dimensions of which may be the same as or different from those of the first core.
  • the first coil is intended to be connected to a source of electrical energy and to be mounted with its core on one of the two aforementioned parts, while the second coil is intended to be mounted with its core on the other part.
  • the mounting relative to each other of these two coils with their respective cores is such that these two cores determine a magnetic circuit in at least one determined position of these parts relative to the other to thereby allow that a variable electric current, for example an alternating current, flowing through said first coil generates a magnetic flux in the two cores.
  • a variable electric current for example an alternating current
  • the flux variation gives rise to an induced electromotive force which appears at the terminals of the second coil. This electromotive force will give rise to an electric current in this second coil when the latter is connected to a closed electrical circuit.
  • This device is characterized in that each of the coils is connected in parallel on a capacitor to form resonant tuned circuits, so that the transfer of energy is carried out essentially at the resonant frequency of these circuits and thus a high power level in a relatively small volume is obtained which is capable of directly powering a mechanism, such as a lock, without requiring a battery.
  • means are provided, such as springs, for applying the cores against each other, so as to eliminate the air gap.
  • the figures show a door leaf 1 mounted in a frame 2 and articulated to the latter by hinges 2 ′.
  • the first coil 9 and its core 10 are mounted in a cavity 11 formed in the frame 2, while the second coil 12 and its core 13 are mounted in a cavity 14 formed in the edge 3 of the door leaf 1 and so that, when leaf 1 is in its closed position in the frame, as shown in Figure 2, the coils with their corresponding cores are located opposite one of the another thus forming, in this position, a minimum air gap 15 between the two cores 10 and 13.
  • the terminals of the coil 9 are connected, by conducting wires 9 ′, to a source of electrical energy which is, in this particular embodiment, constituted by an oscillator 39 supplying the coil 9 with alternating current with a frequency included between 500 and 50,000 Hertz.
  • the second coil 12 is connected to an electrical circuit 28 for controlling an electromagnet 25 of a lock embedded in the door leaf 1.
  • This lock comprises a latch bolt or half-turn 5, which can be actuated directly by a handle 4, on one side of the door, and a dead bolt 6, which can be actuated by a key, not shown in the figures.
  • the electromagnet 25 may for example have the function, when it is excited, of bringing the latch bolt 5 into an open position.
  • a capacitor 40 and 41 is connected in parallel respectively on the coil 9 and on the coil 12, the value of which is chosen so as to obtain a resonance for the frequency of the excitation signal produced by the energy source.
  • Each coil thus defines with its corresponding capacitor what is called “a tuned circuit", making it possible to create in the coils, for a given relatively reduced amplitude of an excitation signal, a sufficiently large electric current and this for coils having a relatively small number of turns.
  • L1 the inductance measured across the coil 9 taking into account the influence of L2
  • L2 the inductance measured across the coil 12 taking into account the influence of L1
  • C1 the capacity of the capacitor 40 mounted in parallel on the coil 9
  • C2 the capacity of the capacitor 41 mounted in parallel on the coil 12.
  • the frequency used in these examples is 16 kHz.
  • a pulsed current is obtained at the terminals of the coil 9 by making use of a field effect transistor 42 which intermittently interrupts the current flowing through the coil 9, the other terminal being connected to a direct current source.
  • two magnetic cores 10 and 13 which are substantially identical and which each have the shape of an E, as shown in Figure 5.
  • the coils are wound on the central branch of these cores and the free ends of the latter and of the other two branches of one of the cores are directed towards the free ends of the corresponding branches of the other core at the time where they are in their closest position to each other, which is, in this case, the closed position of the door.
  • the device according to the invention is suitable not only for the transfer of the energy necessary for the control of mechanical members, such as the bolt of a door lock, but can also be advantageously used for the transmission of electrical signals transporting information between two moving parts with respect to each other.
  • the device according to the invention is particularly suitable for the transmission of information on the state of a door.
  • the state of the door is characterized by its position, in particular open or closed, its thermal uniformity and its mechanical situation, such as stresses, deformations, defects, etc.
  • the door leaf 1 may contain a set of electronic and electrical circuits supplied directly or indirectly via the coils 9 and 12 described above.
  • This assembly may include conductors in series distributed over substantially the entire surface of the door leaf, inside of the latter, so as to form what is called “surface loops" 22, which can be traversed permanently by a weak electric current.
  • This set of electronic and electrical circuits can also include a series of vibration sensors 23 and thermal sensors 24 which are also distributed invisibly over the entire surface of the door leaf 1 and which make it possible to detect mechanical vibrations and variations respectively. abnormal temperature at this surface. These vibrations or variations in temperature can therefore also result from an attempted break-in or a fire.
  • the sensors 23 and 24 are connected to contacts 33, respectively 34, of an electronic centralization unit 26 which collects and manages the information coming from the sensors, surface loops and the lock.
  • the surface loops are connected directly to this centralization unit 26, without separate contacts since they in fact fulfill the function themselves. of contacts. Indeed, any abnormal variation which occurs in the current flow of these loops, caused for example during an attempt to cut the door or a fire causing deterioration or the section of one or more loops can be detected by the unit 26 and thus give rise to a warning signal.
  • a detector 30 which is connected in parallel to the coil 12 and which indicates, depending on the voltage across the terminals of the coil 12 or of the electromagnet 25, whether the door is in the open or closed position. This information is transmitted, in the same way as that coming from the surface sensors and loops, to the centralization unit 26.
  • the state of the lock itself is controlled by the contacts 31 and 32 connected to the centralization unit 26.
  • the throwing bolt 5 When the throwing bolt 5 is brought into the retracted position, it opens the contact 31 by giving a signal to this unit, while the contact 32 opens when the deadbolt 6 is brought into the retracted position.
  • the centralization unit 26 requires only a small amount of energy and is permanently supplied either by the coil 12, when the door is closed or practically closed, or by a small battery 27 incorporated in the leaf door 1.
  • the battery 27 provides current only if it turns out that the energy supplied by the coil 12 to the centralization unit is insufficient.
  • This battery is connected in parallel to the coil 12 by means of a rectifier 29 which, on the one hand, prevents any return of energy from the battery to the electromagnet 27 and to the coil 12 and, d on the other hand, rectifies the electric current sent by the coil to the battery.
  • the battery can automatically be recharged when the door is closed.
  • the centralization unit 26 is in turn connected to another electronic circuit 35 by means of two coils of conductive wires 16 and 19 each wound on a magnetic core 17 respectively 20, which allow the transfer of information coming from the centralization unit 26, in the form of electrical signals, from the door leaf 1 to the frame 2 and this also without mechanical links between the leaf and the frame.
  • the coil 16 is mounted with its core 17 in a cavity 18 formed in the edge of the door leaf 1, on the side where the hinges 2 ′ are located, that is to say where this leaf 1 is articulated on the frame. 2.
  • the coil 19 is mounted with its core 20 in a similar cavity 21 made in the frame 2 at the same level as that of the cavity 18.
  • the signals are decoded in the other electronic circuit 35 possibly comprising a microprocessor.
  • This electronic circuit 35 provides for local processing of information. Thus, among other things, it receives information on the state of the data. On the other hand, it transmits orders, for example an opening command from the outside, managed beforehand by an access control center 37 to the premises intended to be protected by the door and its transfer device. energy and information.
  • the opening command can be carried out, for example, by pressing a push button not shown in the figures.
  • This type of control can prove to be particularly useful for a remote opening control, and in particular from inside the enclosure to be protected.
  • the electronic circuit 35 is connected to an oscillator 39 being, as already mentioned above, itself connected with the coil 9.
  • the transmission of information contained in the electronic circuit 26 of the door leaf 1 to the door frame 2 of the door could also be carried out in certain cases at least via infrared rays for example.
  • access control 37 it is still possible to open and possibly lock the door, eg by entering a code through a keyboard provided for this purpose, by making use of a magnetic card which is introduced into a slot, remotely by a portable ultrasonic device, etc ...
  • the coil 9 is permanently the seat of an alternating current of low amplitude which ensures, through the device described, the supply of the electronic circuits located in the leaf 1 of the door as well as the recharging of the battery 27 also placed in the leaf.
  • the activation of the electromagnet 25 of the lock requires a higher power and is carried out by temporarily exciting the coil 9 by a current of higher amplitude.
  • the device according to the invention advantageously applies both to single-leaf doors and to double-leaf doors, on sliding doors or on roller shutters or doors.

Description

La présente invention est relative à un dispositif pour le transfert d'énergie électrique tel que défini dans le préambule de la revendication 1.The present invention relates to a device for transferring electrical energy as defined in the preamble of claim 1.

Un tel dispositif pour le transfert d'énergie est notamment connu par le DE-A 3612761.Such a device for energy transfer is known in particular from DE-A 3612761.

Ce dispositif connu ne permet que le transfert d'énergie avec une faible puissance, que de ce fait assure seulement la charge d'une batterie. Cette batterie est absolument indispensable pour accumuler la puissance nécessaire à la commande d'une serrure de porte, à laquelle ce dispositif est destiné.This known device only allows the transfer of energy with a low power, that therefore only ensures the charging of a battery. This battery is absolutely essential to accumulate the power necessary to control a door lock, for which this device is intended.

En effet, la batterie commande la serrure via la base d'un transistor qui laisse passer un courant électrique dès que celui-ci atteint la tension de seuil de ce transistor.Indeed, the battery controls the lock via the base of a transistor which allows an electric current to pass as soon as it reaches the threshold voltage of this transistor.

Ainsi, ce dispositif connu présente des inconvénients non négligeables résultant de la présence d'une batterie, notamment par le fait qu'il y a lieu de contrôler régulièrement l'état de la batterie et que, malgré un contrôle régulier, le risque persiste toujours qu'elle devienne défectueuse entre deux contrôles.Thus, this known device has significant drawbacks resulting from the presence of a battery, in particular by the fact that there is reason to regularly check the state of the battery and that, despite a regular check, the risk still persists. that it becomes defective between two checks.

De plus, une serrure commandée par l'intermédiaire d'une batterie ne présente pratiquement aucune sécurité contre l'effraction, étant donné que l'on peut en général facilement localiser la batterie dans le battant d'une porte et agir sur la serrure en appliquant à la base du transistor commandé par la batterie une tension suffisamment importante, c'est-à-dire qui soit supérieure à la tension de seuil de celui-ci.In addition, a lock controlled by means of a battery offers practically no security against burglary, since one can generally easily locate the battery in the door leaf and act on the lock by applying a sufficiently high voltage to the base of the transistor controlled by the battery, that is to say which is greater than the threshold voltage thereof.

Un des buts essentiels de la présente invention est de remédier à tous ces inconvénients et de plus de présenter un dispositif d'une conception extrêmement simple qui est très utile pour le transfert non seulement d'énergie, mais également d'informations de tout genre et ce pour pratiquement n'importe quelle position des deux parties l'une par rapport à l'autre.One of the essential aims of the present invention is to remedy all these drawbacks and moreover to present a device of an extremely simple design which is very useful for the transfer not only of energy, but also of information of all kinds and this for practically any position of the two parts relative to each other.

A cet effet, dans le dispositif suivant l'invention, pour le transfert d'énergie électrique entre deux parties mobiles, l'une par rapport à l'autre, la première respectivement la deuxième bobine est connetée en parallèle sur un premier respectivement un second condensateur pour former des circuits électriques résonants ayant la même fréquence de résonance, de manière à ce que le transfert d'énergie soit réalisé essentiellement à la fréquence de résonance de ces circuits.To this end, in the device according to the invention, for the transfer of electrical energy between two moving parts, one relative to the other, the first respectively the second coil is connected in parallel on a first respectively a second capacitor to form resonant electrical circuits having the same resonant frequency, so that the transfer of energy takes place essentially at the resonant frequency of these circuits.

Suivant une forme de réalisation particulière de l'invention, une des parties précitées étant mobile entre une position de fermeture et une position d'ouverture par rapport à l'autre partie, les noyaux magnétiques sont montés dans chacune de ces parties de manière à ce que l'entrefer éventuel entre ces noyaux soit minimal lorsque les deux parties sont dans une position de fermeture l'une par rapport à l'autre.According to a particular embodiment of the invention, one of the aforementioned parts being movable between a closed position and an open position relative to the other part, the magnetic cores are mounted in each of these parts so that that the possible air gap between these cores is minimal when the two parts are in a closed position relative to each other.

Suivant une forme de réalisation particulièrement avantageuse, les deux parties précitées étant constituées par une huisserie, d'une part, et un battant de porte ou de fenêtre, d'autre part, la deuxième bobine avec son noyau sont montés dans le chant dudit battant, tandis que la première bobine avec son noyau sont montés dans l'huisserie, de manière à se situer en regard de la deuxième bobine avec son noyau, lorsque le battant est dans sa position de fermeture dans l'huisserie, et à former ainsi un entrefer minimal entre les noyaux magnétiques des deux bobines.According to a particularly advantageous embodiment, the two aforementioned parts being constituted by a frame, on the one hand, and a door or window leaf, on the other hand, the second coil with its core are mounted in the edge of said leaf , while the first coil with its core are mounted in the frame, so as to be located opposite the second coil with its core, when the leaf is in its closed position in the frame, and thus form a minimum air gap between the magnetic cores of the two coils.

D'autres détails et particularités de l'invention ressortiront de la description donnée ci-après, à titre d'exemple non limitatif, d'une forme de réalisation particulière du dispositif de transfert d'énergie et/ou d'informations suivant l'invention appliquée sur une porte ; les références utilisées dans cette description se rapportent aux figures annexées.Other details and particularities of the invention will emerge from the description given below, by way of nonlimiting example, of a particular embodiment of the energy and / or information transfer device according to the invention applied to a door; the references used in this description refer to the appended figures.

La figure 1 est une vue en perspective d'une porte équipée d'un dispositif de transfert d'énergie et d'informations suivant cette forme de réalisation particulière de l'invention.Figure 1 is a perspective view of a door equipped with an energy and information transfer device according to this particular embodiment of the invention.

La figure 2 est une vue en élévation, avec brisure partielle, de la porte en position fermée.Figure 2 is an elevational view, partially broken, of the door in the closed position.

La figure 3 est une représentation schématique du circuit électrique de cette forme de réalisation particulière du dispositif de transfert d'énergie et d'informations suivant l'invention.Figure 3 is a schematic representation of the electrical circuit of this particular embodiment of the energy and information transfer device according to the invention.

La figure 4 est, à plus grande échelle, une représentation d'un détail d'un élément essentiel du dispositif suivant l'invention.Figure 4 is, on a larger scale, a representation of a detail of an essential element of the device according to the invention.

La figure 5 est une représentation schématique d'un autre détail de cet élément essentiel du dispositif suivant cette forme de réalisation particulière de l'invention.Figure 5 is a schematic representation of another detail of this essential element of the device according to this particular embodiment of the invention.

Dans les différentes figures, les mêmes chiffres de référence se rapportent aux mêmes éléments.In the different figures, the same reference numbers refer to the same elements.

L'invention concerne, d'une façon générale, un dispositif pour le transfert d'énergie électrique et/ou d'informations entre deux parties quelconques mobiles l'une par rapport à l'autre.The invention relates, in general, to a device for transferring electrical energy and / or information between any two parts which are movable relative to one another.

Toutefois, ce dispositif trouve surtout son application pour le transfert d'énergie entre une huisserie et un battant de porte et/ou de fenêtre ouvrante montée dans cette huisserie, entre un couvercle et les bords de l'accès d'une enceinte fermée par ce couvercle et, enfin, entre un tiroir et un châssis dans lequel ce tiroir peut coulisser.However, this device finds especially its application for the transfer of energy between a frame and a door leaf and / or opening window mounted in this frame, between a cover and the edges of the access of an enclosure closed by this cover and, finally, between a drawer and a frame in which this drawer can slide.

Ce dispositif comporte une première bobine conductrice d'électricité comprenant un fil conducteur isolé enroulé sur un premier noyau magnétique, par exemple en ferrite, et une deuxième bobine conductrice d'électricité, dont le nombre et le diamètre des spires peut être identique ou différent du nombre et diamètre de ceux de la première bobine, qui est enroulée sur un deuxième noyau magnétique, par exemple également en ferrite, dont la forme et les dimensions peuvent être les mêmes que ou différentes de celles du premier noyau.This device comprises a first electrically conductive coil comprising an insulated conductive wire wound on a first magnetic core, for example made of ferrite, and a second electrically conductive coil, the number and diameter of the turns of which may be the same or different from number and diameter of those of the first coil, which is wound on a second magnetic core, for example also made of ferrite, the shape and dimensions of which may be the same as or different from those of the first core.

La première bobine est destinée à être branchée sur une source d'énergie électrique et à être montée avec son noyau sur une des deux parties précitées, tandis que la deuxième bobine est destinée à être montée avec son noyau sur l'autre partie.The first coil is intended to be connected to a source of electrical energy and to be mounted with its core on one of the two aforementioned parts, while the second coil is intended to be mounted with its core on the other part.

Le montage l'une par rapport à l'autre de ces deux bobines avec leurs noyaux respectifs est tel que ces deux noyaux déterminent un circuit magnétique dans au moins une position déterminée de ces parties l'une par rapport à l'autre pour permettre ainsi qu'un courant électrique variable, par exemple un courant alternatif, parcourant ladite première bobine engendre un flux magnétique dans les deux noyaux. La variation de flux donne naissance à une force électro-motrice induite qui apparaît aux bornes de la deuxième bobine. Cette force électromotrice donnera naissance à un courant électrique dans cette deuxième bobine lorsque cette dernière est branchée dans un circuit électrique fermé.The mounting relative to each other of these two coils with their respective cores is such that these two cores determine a magnetic circuit in at least one determined position of these parts relative to the other to thereby allow that a variable electric current, for example an alternating current, flowing through said first coil generates a magnetic flux in the two cores. The flux variation gives rise to an induced electromotive force which appears at the terminals of the second coil. This electromotive force will give rise to an electric current in this second coil when the latter is connected to a closed electrical circuit.

Ce dispositif est caractérisé en ce que chacune des bobines est connectée en parallèle sur un condensateur pour former des circuits accordés résonants, de manière à ce que le transfert d'énergie soit réalisé essentiellement à la fréquence de résonance de ces circuits et qu'ainsi un haut niveau de puissance dans un volume relativement réduit soit obtenu qui est capable d'alimenter directement un mécanisme, telle qu'une serrure, sans nécessiter de batterie.This device is characterized in that each of the coils is connected in parallel on a capacitor to form resonant tuned circuits, so that the transfer of energy is carried out essentially at the resonant frequency of these circuits and thus a high power level in a relatively small volume is obtained which is capable of directly powering a mechanism, such as a lock, without requiring a battery.

Afin d'assurer, dans au moins une position relative des deux parties, un transfert d'énergie entre les deux bobines avec un maximum de rendement, il est souhaitable que l'entrefer entre les deux noyaux magnétiques soit minimal ou même, si possible, inexistant dans cette position relative.In order to ensure, in at least one relative position of the two parts, an energy transfer between the two coils with maximum efficiency, it is desirable that the air gap between the two magnetic cores is minimal or even, if possible, nonexistent in this relative position.

Ainsi, si une des deux parties précitées est mobile entre une position de fermeture et une position d'ouverture par rapport à l'autre partie, il pourrait par exemple être utile que cet entrefer soit minimal ou inexistant lorsque les deux parties sont dans leur position de fermeture l'une par rapport à l'autre.Thus, if one of the two aforementioned parts is movable between a closed position and an open position relative to the other part, it could for example be useful for this air gap to be minimal or nonexistent when the two parts are in their position of closure relative to each other.

Dans certains cas, il pourrait être utile que, dans cette position de fermeture, des moyens soient prévus, tels que des ressorts, pour appliquer les noyaux les uns contre les autres, de manière à supprimer l'entrefer.In certain cases, it could be useful that, in this closed position, means are provided, such as springs, for applying the cores against each other, so as to eliminate the air gap.

Etant donné qu'une préférence particulière est donnée à l'application du dispositif suivant l'invention sur des portes, les figures annexées, qui seront décrites ci-après, concernent cette forme de réalisation préférentielle.Since a particular preference is given to the application of the device according to the invention on doors, the appended figures, which will be described below, relate to this preferred embodiment.

Les figures présentent un battant de porte 1 monté dans une huisserie 2 et articulé à cette dernière par des charnières 2′.The figures show a door leaf 1 mounted in a frame 2 and articulated to the latter by hinges 2 ′.

Dans cette forme de réalisation particulière, la première bobine 9 et son noyau 10 sont montés dans une cavité 11 pratiquée dans l'huisserie 2, tandis que la deuxième bobine 12 et son noyau 13 sont montés dans une cavité 14 pratiquée dans le chant 3 du battant de porte 1 et ce de manière à ce que, lorsque le battant 1 est dans sa position de fermeture dans l'huisserie, comme montré à la figure 2, les bobines avec leurs noyaux correspondants se situent en regard l'une de l'autre en formant ainsi, dans cette position, un entrefer minimal 15 entre les deux noyaux 10 et 13.In this particular embodiment, the first coil 9 and its core 10 are mounted in a cavity 11 formed in the frame 2, while the second coil 12 and its core 13 are mounted in a cavity 14 formed in the edge 3 of the door leaf 1 and so that, when leaf 1 is in its closed position in the frame, as shown in Figure 2, the coils with their corresponding cores are located opposite one of the another thus forming, in this position, a minimum air gap 15 between the two cores 10 and 13.

Les bornes de la bobine 9 sont branchées, par des fils conducteurs 9′ sur une source d'énergie électrique qui est, dans cette forme de réalisation particulière, constituée par un oscillateur 39 fournissant à la bobine 9 un courant alternatif d'une fréquence comprise entre 500 et 50.000 Hertz.The terminals of the coil 9 are connected, by conducting wires 9 ′, to a source of electrical energy which is, in this particular embodiment, constituted by an oscillator 39 supplying the coil 9 with alternating current with a frequency included between 500 and 50,000 Hertz.

La deuxième bobine 12 est branchée dans un circuit électrique 28 de commande d'un électro-aimant 25 d'une serrure encastrée dans le battant de porte 1.The second coil 12 is connected to an electrical circuit 28 for controlling an electromagnet 25 of a lock embedded in the door leaf 1.

Cette serrure comprend un pêne lançant ou demi-tour 5, pouvant être actionné directement par une poignée 4, d'un côté de la porte, et un pêne dormant 6, pouvant être actionné par une clef, non représentée aux figures.This lock comprises a latch bolt or half-turn 5, which can be actuated directly by a handle 4, on one side of the door, and a dead bolt 6, which can be actuated by a key, not shown in the figures.

Dans leur position de fermeture ces pênes 5 et 6 s'engagent dans des gâches 7, respectivement 8 prévues dans l'huisserie 2.In their closed position, these bolts 5 and 6 engage in strikes 7, 8 respectively provided in the frame 2.

L'électro-aimant 25 peut par exemple avoir comme fonction, lorsqu'il est excité, d'amener le pêne lançant 5 dans une position d'ouverture.The electromagnet 25 may for example have the function, when it is excited, of bringing the latch bolt 5 into an open position.

Le dispositif suivant l'invention, est de préférence constitué d'un bloc autonome qui, par des moyens mécanniques et électriques très simples, est raccordé aux moyens de commande d'une serrure quelconque connue en soi, et qui, de plus, permet en même temps le transfert de tout genre d'informations indépendamment de la serrure.The device according to the invention is preferably made up of an autonomous block which, by very simple mechanical and electrical means, is connected to the control means of any lock known per se, and which, moreover, allows at the same time the transfer of any kind of information regardless of the lock.

Ainsi, il n'a pas été jugé utile de décrire la serrure plus en détail dans le contexte de la présente invention.Thus, it was not considered useful to describe the lock in more detail in the context of the present invention.

Afin de permettre de réduire l'encombrement de ces bobines avec leurs noyaux respectifs au stricte minimum et ainsi permettre leur pose dans un espace aussi réduit que possible et notamment dans le chant d'un battant de porte, comme représenté à la figure 4, tout en assurant un transfert d'énergie suffisant pour commander directement la serrure, sans nécessiter de batterie, un condensateur 40 et 41 est connecté en parallèle respectivement sur la bobine 9 et sur la bobine 12, dont la valeur est choisie de manière à obtenir une résonance pour la fréquence du signal d'excitation produite par la source d'énergie.To reduce the size of these coils with their respective cores to the strict minimum and thus allow their installation in a space as small as possible and in particular in the edge of a door leaf, as shown in Figure 4, all ensuring sufficient energy transfer to directly control the lock, without requiring a battery, a capacitor 40 and 41 is connected in parallel respectively on the coil 9 and on the coil 12, the value of which is chosen so as to obtain a resonance for the frequency of the excitation signal produced by the energy source.

Chaque bobine définit ainsi avec son condensateur correspondant ce qui est appelé "un circuit accordé", permettant de créer dans les bobines, pour une amplitude donnée relativement réduite d'un signal d'excitation, un courant électrique suffisamment important et ceci pour des bobines présentant un nombre relativement réduit de spires.Each coil thus defines with its corresponding capacitor what is called "a tuned circuit", making it possible to create in the coils, for a given relatively reduced amplitude of an excitation signal, a sufficiently large electric current and this for coils having a relatively small number of turns.

Pour chaque circuit accordé les valeurs de ses composants sont fournies par les relations suivantes :

Figure imgb0001

dans lesquelles
L₁ = l'inductance mesurée aux bornes de la bobine 9 compte tenu de l'influence de L₂ ;
L₂ = l'inductance mesurée aux bornes de la bobine 12 compte tenu de l'influence de L₁ ;
C₁ = la capacité du condensateur 40 monté en parallèle sur la bobine 9 ;
C₂ = la capacité du condensateur 41 monté en parallèle sur la bobine 12.For each tuned circuit the values of its components are provided by the following relationships:
Figure imgb0001

in which
L₁ = the inductance measured across the coil 9 taking into account the influence of L₂;
L₂ = the inductance measured across the coil 12 taking into account the influence of L₁;
C₁ = the capacity of the capacitor 40 mounted in parallel on the coil 9;
C₂ = the capacity of the capacitor 41 mounted in parallel on the coil 12.

Afin de permettre d'illustrer plus concrètement cette forme de réalisation particulière, un exemple de réalisation sera donné ci-après avec référence à la figure 4.In order to illustrate this particular embodiment more concretely, an exemplary embodiment will be given below with reference to FIG. 4.

Dans cet exemple, les bobines sont placées sur des noyaux magnétiques en Ferrite Siemens type B66341 Gx 127 EC 52X24X14 Mat N27.In this example, the coils are placed on magnetic cores in Siemens Ferrite type B66341 Gx 127 EC 52X24X14 Mat N27.

Pour ce type particulier de circuit accordé l'inductance L est donnée par la relation :
L = n² A L

Figure imgb0002
, dans laquelle A L = 93.10⁻³µH/tr²
Figure imgb0003

n étant le nombre de spires de la bobine d'induction,
tr étant l'unité du nombre de spires.For this particular type of tuned circuit, the inductance L is given by the relation:
L = n² A L
Figure imgb0002
, in which AT L = 93.10⁻³µH / tr²
Figure imgb0003

n being the number of turns of the induction coil,
tr being the unit of the number of turns.

Cette relation est valable à condition de négliger le couplage entre les deux bobines.This relationship is valid provided that the coupling between the two coils is neglected.

Pour une première bobine 9, formée d'un fil de cuivre isolé avec un diamètre de 0,5 mm, comprenant 35 spires et une deuxième bobine 12, formée d'un même fil, comprenant 55 spires, avec les relations (1) et (2), on obtient
L₁ = 116 µH
L₂ = 280 µH.
For a first coil 9, formed of an insulated copper wire with a diameter of 0.5 mm, comprising 35 turns and a second coil 12, formed of the same wire, comprising 55 turns, with the relationships (1) and (2), we get
L₁ = 116 µH
L₂ = 280 µH.

Les capacités C₁ et C₂ sont alors uniquement fournies par les relations (1) et (2).Capacities C₁ and C₂ are then only provided by relations (1) and (2).

La fréquence utilisée dans ces exemples est de 16 kHz.The frequency used in these examples is 16 kHz.

En pratique, toutefois, les valeurs C₁ et C₂ diffèrent quelque peu des valeurs fournies par les relations (1) et (2) pour les deux raisons suivantes :

  • a) Ces relations ne tiennent pas compte du couplage entre L₁ et L₂ ;
  • b) C₁ joue également le rôle d'amortisseur de la surtension produite par le self au moment de l'arrêt de conduction du transistor.
In practice, however, the values C₁ and C₂ differ somewhat from the values provided by equations (1) and (2) for the following two reasons:
  • a) These relations do not take into account the coupling between L₁ and L₂;
  • b) C₁ also acts as a damper for the overvoltage produced by the inductor at the time of the conduction stop of the transistor.

Pour ces deux raisons les valeurs définitives de C₁ et C₂ ont été définies expérimentalement et sont comme suit : C₁ = 330 nF et C₂ = 300 nF.For these two reasons the final values of C₁ and C₂ have been defined experimentally and are as follows: C₁ = 330 nF and C₂ = 300 nF.

Un courant pulsé est obtenu aux bornes de la bobine 9 en faisant usage d'un transistor à effet de champ 42 qui interrompt par intermittence le courant parcourant la bobine 9, l'autre borne étant raccordée à une source de courant continu.A pulsed current is obtained at the terminals of the coil 9 by making use of a field effect transistor 42 which intermittently interrupts the current flowing through the coil 9, the other terminal being connected to a direct current source.

Cette connexion remplit donc la fonction de l'oscillateur 39, représenté à la figure 3 et dont question ci-dessus.This connection therefore fulfills the function of the oscillator 39, shown in FIG. 3 and of which question above.

Afin d'obtenir un entrefer aussi réduit que possible, dans une forme de réalisation particulière de l'invention, on fait usage de deux noyaux magnétiques 10 et 13 qui sont sensiblement identiques et qui présentent chacun la forme d'un E, comme représenté à la figure 5.In order to obtain as small an air gap as possible, in a particular embodiment of the invention, use is made of two magnetic cores 10 and 13 which are substantially identical and which each have the shape of an E, as shown in Figure 5.

Les bobines, respectivement 9 et 12, sont enroulées sur la branche centrale de ces noyaux et les extrémités libres de cette dernière et des deux autres branches d'un des noyaux sont dirigées vers les extrémités libres des branches correspondantes de l'autre noyau au moment où ils se trouvent dans leur position la plus rapprochée l'une de l'autre, qui est, dans le présent cas, la position de fermeture de la porte.The coils, respectively 9 and 12, are wound on the central branch of these cores and the free ends of the latter and of the other two branches of one of the cores are directed towards the free ends of the corresponding branches of the other core at the time where they are in their closest position to each other, which is, in this case, the closed position of the door.

Le dispositif suivant l'invention convient non seulement pour le transfert de l'énergie nécessaire pour la commande d'organes mécaniques, tel que le pêne d'une serrure de porte, mais peut également être utilisé avantageusement pour la transmission de signaux électriques transportant des informations entre deux parties mobiles l'une par rapport à l'autre.The device according to the invention is suitable not only for the transfer of the energy necessary for the control of mechanical members, such as the bolt of a door lock, but can also be advantageously used for the transmission of electrical signals transporting information between two moving parts with respect to each other.

Ainsi, le dispositif suivant l'invention convient particulièrement pour la transmission d'informations sur l'état d'une porte.Thus, the device according to the invention is particularly suitable for the transmission of information on the state of a door.

L'état de la porte est caractérisé par sa position, notamment ouverte ou fermée, son homogénéité thermique et sa situation mécanique, telle que tensions, déformations, défectuosités, etc...The state of the door is characterized by its position, in particular open or closed, its thermal uniformity and its mechanical situation, such as stresses, deformations, defects, etc.

A cet effet, suivant l'invention, le battant de porte 1 peut contenir un ensemble de circuits électroniques et électriques alimenté directement ou indirectement par l'intermédiaire des bobines 9 et 12 décrites ci-dessus.To this end, according to the invention, the door leaf 1 may contain a set of electronic and electrical circuits supplied directly or indirectly via the coils 9 and 12 described above.

Cet ensemble peut comprendre des conducteurs en série répartis sur sensiblement toute la surface du battant de porte, à l'intérieur de celui-ci, de manière à former ce qui est appelé "boucles de surface" 22, qui peuvent être parcourues en permanence par un faible courant électrique.This assembly may include conductors in series distributed over substantially the entire surface of the door leaf, inside of the latter, so as to form what is called "surface loops" 22, which can be traversed permanently by a weak electric current.

Cet ensemble de circuits électroniques et électriques peut encore comprendre une série de capteurs de vibrations 23 et de capteurs thermiques 24 qui sont également répartis de manière invisible sur toute la surface du battant de porte 1 et qui permettent de détecter respectivement des vibrations mécaniques et des variations de température anormales à cette surface. Ces vibrations ou variations de température peuvent donc également résulter d'une tentative d'effraction ou d'un incendie.This set of electronic and electrical circuits can also include a series of vibration sensors 23 and thermal sensors 24 which are also distributed invisibly over the entire surface of the door leaf 1 and which make it possible to detect mechanical vibrations and variations respectively. abnormal temperature at this surface. These vibrations or variations in temperature can therefore also result from an attempted break-in or a fire.

Les capteurs 23 et 24 sont branchés sur des contacts 33, respectivement 34, d'une unité électronique de centralisation 26 qui recueille et gère les informations provenant des capteurs, des boucles de surface et de la serrure. A cet effet, les boucles de surface sont raccordées directement à cette unité de centralisation 26, sans contacts séparés puisqu'elles remplissent en fait elles-mêmes la fonction de contacts. En effet, toute variation anormale qui se produit dans le passage du courant de ces boucles, causée par exemple lors d'une tentative de découpage de la porte ou d'un incendie provoquant la détérioration ou la section d'une ou plusieurs boucles peut être détectée par l'unité 26 et donner ainsi naissance à un signal d'avertissement.The sensors 23 and 24 are connected to contacts 33, respectively 34, of an electronic centralization unit 26 which collects and manages the information coming from the sensors, surface loops and the lock. For this purpose, the surface loops are connected directly to this centralization unit 26, without separate contacts since they in fact fulfill the function themselves. of contacts. Indeed, any abnormal variation which occurs in the current flow of these loops, caused for example during an attempt to cut the door or a fire causing deterioration or the section of one or more loops can be detected by the unit 26 and thus give rise to a warning signal.

Pour ce qui concerne les capteurs 23 et 24, ceux-ci ferment les contacts 33 et 34 lorsqu'ils détectent une des anomalies précitées.As regards the sensors 23 and 24, these close the contacts 33 and 34 when they detect one of the abovementioned anomalies.

De plus, le contrôle de la position de la porte est réalisé par un détecteur 30 qui est connecté en parallèle sur la bobine 12 et qui indique, suivant la tension aux bornes de la bobine 12 ou de l'électro-aimant 25, si la porte est en position d'ouverture ou de fermeture. Cette information est transmise, de la même façon que celle provenant des capteurs et boucles de surface, vers l'unité de centralisation 26.In addition, the position of the door is checked by a detector 30 which is connected in parallel to the coil 12 and which indicates, depending on the voltage across the terminals of the coil 12 or of the electromagnet 25, whether the door is in the open or closed position. This information is transmitted, in the same way as that coming from the surface sensors and loops, to the centralization unit 26.

L'état de la serrure même est contrôlé grâce aux contacts 31 et 32 reliés à l'unité de centralisation 26. Lorsque le pêne lançant 5 est amené en position rentrée, il ouvre le contact 31 en donnant un signal vers cette unité, tandis que le contact 32 s'ouvre lorsque le pêne dormant 6 est amené en position rentrée.The state of the lock itself is controlled by the contacts 31 and 32 connected to the centralization unit 26. When the throwing bolt 5 is brought into the retracted position, it opens the contact 31 by giving a signal to this unit, while the contact 32 opens when the deadbolt 6 is brought into the retracted position.

L'unité de centralisation 26 ne requiert q'une faible quantité d'énergie et est alimentée en permanence soit par l'intermédiaire de la bobine 12, lorsque la porte est fermée ou pratiquement fermée, soit par une petite batterie 27 incorporée dans le battant de porte 1. La batterie 27 ne fournit du courant que dans le cas où il s'avère que l'énergie fournie par la bobine 12 à l'unité de centralisation est insuffisante.The centralization unit 26 requires only a small amount of energy and is permanently supplied either by the coil 12, when the door is closed or practically closed, or by a small battery 27 incorporated in the leaf door 1. The battery 27 provides current only if it turns out that the energy supplied by the coil 12 to the centralization unit is insufficient.

Cette batterie est branchée en parallèle sur la bobine 12 par l'intermédiaire d'un redresseur 29 qui, d'une part, empêche tout retour d'énergie de la batterie vers l'électro-aimant 27 et vers la bobine 12 et, d'autre part, effectue le redressement du courant électrique envoyé par la bobine vers la batterie.This battery is connected in parallel to the coil 12 by means of a rectifier 29 which, on the one hand, prevents any return of energy from the battery to the electromagnet 27 and to the coil 12 and, d on the other hand, rectifies the electric current sent by the coil to the battery.

Ainsi, la batterie peut automatiquement être rechargée lorsque la porte est fermée.Thus, the battery can automatically be recharged when the door is closed.

L'unité de centralisation 26 est à son tour raccordée à un autre circuit électronique 35 par l'intermédiaire de deux bobines de fils conducteurs 16 et 19 enroulées chacune sur un noyau magnétique 17 respectivement 20, qui permettent le transfert des informations, provenant de l'unité de centralisation 26, sous forme de signaux électriques, du battant de porte 1 vers l'huisserie 2 et ceci également sans liens mécaniques entre le battant et l'huisserie.The centralization unit 26 is in turn connected to another electronic circuit 35 by means of two coils of conductive wires 16 and 19 each wound on a magnetic core 17 respectively 20, which allow the transfer of information coming from the centralization unit 26, in the form of electrical signals, from the door leaf 1 to the frame 2 and this also without mechanical links between the leaf and the frame.

La bobine 16 est montée avec son noyau 17 dans une cavité 18 pratiquée dans le chant du battant de porte 1, du côté où se trouvant les charnières 2′, c'est-à-dire où est articulé ce battant 1 sur l'huisserie 2.The coil 16 is mounted with its core 17 in a cavity 18 formed in the edge of the door leaf 1, on the side where the hinges 2 ′ are located, that is to say where this leaf 1 is articulated on the frame. 2.

La bobine 19 est montée avec son noyau 20 dans une cavité analogue 21 pratiquée dans l'huisserie 2 au même niveau que celui de la cavité 18.The coil 19 is mounted with its core 20 in a similar cavity 21 made in the frame 2 at the same level as that of the cavity 18.

Ainsi, la distance, qui sépare les deux noyaux 17 et 20 l'un de l'autre, restera toujours relativement réduite, même si la porte est complètement ouverte, de telle sorte qu'un circuit magnétique persistera toujours indépendamment de la position de la porte.Thus, the distance, which separates the two cores 17 and 20 from each other, will always remain relatively reduced, even if the door is fully open, so that a magnetic circuit will always persist regardless of the position of the door.

Ceci a donc comme résultat que le transfert des informations provenant de l'unité de centralisation 26 vers le circuit électronique 35 sera toujours assuré. Par le fait que la quantité d'énergie requise par le transfert de ces informations est assez réduite, il a été constaté, suivant l'invention, que celle-ci est suffisante pour n'importe quel angle l'ouverture de la porte 1 allant jusqu'à 180°.This therefore has the result that the transfer of information from the centralization unit 26 to the electronic circuit 35 will always be ensured. By the fact that the amount of energy required for the transfer of this information is quite reduced, it has been found, according to the invention, that this is sufficient for any angle the opening of the door 1 going up to 180 °.

Après avoir parcouru la bobine 19, les signaux sont décodés dans l'autre circuit électronique 35 comprenant éventuellement un microprocesseur. Ce circuit électronique 35 pourvoit au traitement local des informations. Ainsi, il reçoit entre autres les informations sur l'état des données d'une part. D'autre part, il transmet des ordres, par exemple une commande d'ouverture venant de l'extérieur, gérée préalablement par une centrale de contrôle d'accès 37 aux locaux destinés à être protégés par la porte et son dispositif de transfert d'énergie et d'informations.After having traversed the coil 19, the signals are decoded in the other electronic circuit 35 possibly comprising a microprocessor. This electronic circuit 35 provides for local processing of information. Thus, among other things, it receives information on the state of the data. On the other hand, it transmits orders, for example an opening command from the outside, managed beforehand by an access control center 37 to the premises intended to be protected by the door and its transfer device. energy and information.

La commande d'ouverture peut s'effectuer, par exemple, en appuyant sur un bouton poussoir non représenté sur les figures. Ce type de commande peut s'avérer particulièrement utile pour une commande d'ouverture à distance, et en particulier de l'intérieur de l'enceinte à protéger.The opening command can be carried out, for example, by pressing a push button not shown in the figures. This type of control can prove to be particularly useful for a remote opening control, and in particular from inside the enclosure to be protected.

Le circuit électronique 35 est relié à un oscillateur 39 étant, comme déjà mentionné ci-dessus, lui-même raccordé avec la bobine 9.The electronic circuit 35 is connected to an oscillator 39 being, as already mentioned above, itself connected with the coil 9.

Suivant une autre forme de réalisation du dispositif suivant l'invention, la transmission d'informations contenues dans le circuit électronique 26 du battant de porte 1 vers l'huisserie 2 de la porte pourrait également être réalisé dans certains cas au moins par l'intermédiaire de rayons infra-rouges par exemple.According to another embodiment of the device according to the invention, the transmission of information contained in the electronic circuit 26 of the door leaf 1 to the door frame 2 of the door could also be carried out in certain cases at least via infrared rays for example.

Le circuit électronique 35 est relié à la centrale de contrôle d'accès 37 par l'intermédiaire d'une interface de transmission 36 par exemple série ou parallèle. Une alimentation 38 est éventuellement reliée ou circuit électronique 35. Cette alimentation 38 s'avère nécessaire si outre un transfert d'énergie, destiné à la commande d'ouverture de la porte 1, on désire également une transmission d'informations sur l'état de divers éléments du dispositif.The electronic circuit 35 is connected to the access control center 37 via a transmission interface 36, for example serial or parallel. A power supply 38 is optionally connected or electronic circuit 35. This power supply 38 is necessary if, in addition to an energy transfer, intended for the control of opening of the door 1, it is also desired to transmit information on the various elements of the device.

Un temporisateur, non représenté sur les figures, peut être incorporé au système électrique qui permet de maintenir le pêne 5 dans son état d'ouverture, c'est-à-dire en position rentrée, pendant une durée limitée à partir du moment où on a appuyé sur le bouton poussoir de commande d'ouverture. Une fois cette durée écoulée, le pêne est ramené automatiquement dans son état de fermeture, c'est-à-dire en saillie par rapport au chant 3 de la porte.A timer, not shown in the figures, can be incorporated into the electrical system which allows the bolt 5 to be kept in its open state, that is to say in the retracted position, for a limited time from the moment when pressed the opening control push button. Once this time has elapsed, the bolt is automatically returned to its closed state, that is to say, projecting from edge 3 of the door.

Grâce au contrôle d'accès 37, il est encore possible d'ouvrir et éventuellement de verrouiller la porte, p.e. en y introduisant un code par un clavier prévu à cette fin, en faisant usage d'une carte magnétique que l'on introduit dans une fente, à distance par un appareil portatif à ultra-sons, etc...Thanks to access control 37, it is still possible to open and possibly lock the door, eg by entering a code through a keyboard provided for this purpose, by making use of a magnetic card which is introduced into a slot, remotely by a portable ultrasonic device, etc ...

La bobine 9 est en permanence le siège d'un courant alternatif de faible amplitude qui assure, au travers du dispositif décrit, l'alimentation des circuits électroniques situés dans le battant 1 de la porte ainsi que la recharge de la batterie 27 placée également dans le battant.The coil 9 is permanently the seat of an alternating current of low amplitude which ensures, through the device described, the supply of the electronic circuits located in the leaf 1 of the door as well as the recharging of the battery 27 also placed in the leaf.

L'activation de l'électro-aimant 25 de la serrure nécessite une puissance plus élevée et est réalisée en excitant momentanément la bobine 9 par un courant de plus forte amplitude.The activation of the electromagnet 25 of the lock requires a higher power and is carried out by temporarily exciting the coil 9 by a current of higher amplitude.

Vu tous les contrôles et surveillances qu'il est possible de réaliser grâce au dispositif de transfert d'énergie suivant l'invention, celui-ci peut s'appliquer tout particulièrement aux portes coupe-feu et anti-effraction.In view of all the checks and surveillance that it is possible to carry out using the energy transfer device according to the invention, it can be applied particularly to fire and burglar-resistant doors.

Il a été constaté, suivant l'invention, qu'un transfert d'énergie suffisant peut encore être réalisé lorsque la distance entre les noyaux est de plusieurs millimètres. Ainsi, les bobines avec leur noyaux peuvent être noyés complètement dans le chant du battant de porte et dans l'huisserie entourant ce dernier.It has been found, according to the invention, that sufficient energy transfer can still be achieved when the distance between the cores is several millimeters. Thus, the coils with their cores can be completely embedded in the edge of the door leaf and in the frame surrounding the latter.

A titre d'exemple, il a été constaté que l'on peut encore réaliser un transfert de puissance de 6 Watts lorsque la distance entre les noyaux magnétiques est de 15 mm. et ce pour une puissance émise de 20 Watts.As an example, it has been observed that a power transfer of 6 Watts can still be carried out when the distance between the magnetic cores is 15 mm. and this for an emitted power of 20 Watts.

On pourrait éventuellement omettre les bobines 16 et 19 avec leurs noyaux respectifs 17 et 20.We could possibly omit the coils 16 and 19 with their respective cores 17 and 20.

Le dispositif suivant l'invention s'applique avantageusement aussi bien sur des portes à un seul battant que sur des portes à deux battants, sur des portes coulissantes ou encore sur des volets ou portes enroulables.The device according to the invention advantageously applies both to single-leaf doors and to double-leaf doors, on sliding doors or on roller shutters or doors.

Dans d'autres cas encore, la bobine 9 pourrait être alimentée de courant à basse fréquence, p.e. de 50 Hertz, de sorte que l'énergie pourrait alors directement être fournie par le réseau.In still other cases, the coil 9 could be supplied with current at low frequency, e.g. 50 Hertz, so that the energy could then be directly supplied by the network.

Enfin, ou pourrait encore envisager l'utilisation d'une bobine à plusieurs fils conducteurs isolés enroulés sur un même noyau ou sur des noyaux différents fixés sur une des parties mobiles l'une par rapport à l'autre et pouvant former un circuit magnétique avec un ou plusieurs noyaux magnétiques portant également une ou plusieurs bobines d'un ou plusieurs fils conducteurs, qui seraient fixés sur l'autre partie mobile.Finally, or could also envisage the use of a coil with several insulated conducting wires wound on the same core or on different cores fixed on one of the moving parts relative to each other and which can form a magnetic circuit with one or more magnetic cores also carrying one or more coils of one or more conductive wires, which would be fixed on the other mobile part.

Claims (8)

  1. A device for the transfer of electrical energy between two members (1, 2) of an assembly, which are mobile in relation to one another, in particular between a frame (2) and an opening window or door leaf (1) mounted in said frame, between a cover and the access edges of an enclosure closed by said cover, or between a drawer and a frame in which said drawer can slide, comprising a first coil (9) which is formed by an insulated conductor wire wound around a first magnetic core (10) and which is connected to an electrical energy supply (39) forming part of a first electric circuit, the transmitter circuit, and a second coil (12) which is formed by an insulated conductor wire wound around a second magnetic core (13) and connected to a second electric circuit (28), the receiving circuit, said second electric circuit (28) being closed, the first coil (9) being intended to be mounted with its core (10) on one of said members (2), the second coil (12) being intended to be mounted with its core (13) on the other member (1) in such a way that these two cores (10, 13) define a magnetic circuit in at least one given position of the members (1, 2) in relation to one another, so as thus to enable a variable electric current, flowing through said first coil (9), to generate a variable magnetic flux in the two cores (10, 13) thus inducing an electromotive force in the second coil (12) and creating an electric current in said second coil (12), said device being characterised in that the first coil (9) and respectively the second coil (12) are connected in parallel with a first capacitor (40) and respectively a second capacitor (41), so as to form two electric circuits having the same resonance frequency so that the energy transfer takes place substantially at the resonance frequency of the these circuits.
  2. A device according to claim 1, characterised in that one of the two aforementioned members (1) is movable between a closed position and an open position in relation to the other member (2), and the magnetic cores (10, 13) are mounted in each of these members in such a way that any air gap between these cores (10, 13) is minimal when the two members (1, 2) are in a closed position in relation to one another.
  3. A device according to either claim 1 or claim 2, characterised in that since the two aforementioned members (1, 2) comprise a frame (2), on the one hand, and a window or door leaf (1), on the other hand, the second coil (12) and its core (13) are mounted in the edge of said leaf (1), whereas the first coil (9) and its core (10) are mounted in the frame (2) so as to be situated opposite the second coil (12) and its core (13) when the leaf (1) is in its closed position in the frame (2), and so as to form an minimal air gap (15) between the magnetic cores (10, 13) of the two coils (9, 12).
  4. A device according to any one of claims 1 to 3, characterised in that the second coil (12) is connected to an electric circuit (28) for controlling a lock which is mounted on one of the aforementioned members (1), whereas the first coil (9) is connected to the electrical energy supply (39).
  5. A device according to any one of claims 1 to 4, characterised in that the electrical energy supply (39) is such that it can produce an excitation signal of a frequency of between 500 and 50,000 Hertz.
  6. A device according to any one of claims 1 to 5, characterised in that the two cores (10, 13) are substantially identical and are E-shaped with the coil wound around the central arm thereof, the free ends of the arms of the cores being directed towards one another at the point where they are situated in their closest position to one another, thereby providing a minimal air gap (15).
  7. A device according to any one of claims 1 to 6, characterised in that it comprises a central unit (26) connected to one of the coils (9, 12) and intended to transmit the electric signals which are a function of the condition of at least one of said members (1, 2).
  8. A device according to any one of claims 1 to 7, characterised in that it comprises a substantially self-contained assembly which is connected to the control means for a lock.
EP19880202247 1987-10-30 1988-10-07 Electric energy transmission device Expired - Lifetime EP0314222B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP87870153 1987-10-30
EP87870153 1987-10-30

Publications (2)

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EP0314222A1 EP0314222A1 (en) 1989-05-03
EP0314222B1 true EP0314222B1 (en) 1993-06-09

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EP19880202247 Expired - Lifetime EP0314222B1 (en) 1987-10-30 1988-10-07 Electric energy transmission device

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US (1) US4929005A (en)
EP (1) EP0314222B1 (en)
DE (1) DE3881637T2 (en)

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Also Published As

Publication number Publication date
EP0314222A1 (en) 1989-05-03
DE3881637T2 (en) 1994-01-05
US4929005A (en) 1990-05-29
DE3881637D1 (en) 1993-07-15

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