WO2006051123A1 - Systeme de commande pour l'actionnement d'un circuit electrique - Google Patents

Systeme de commande pour l'actionnement d'un circuit electrique Download PDF

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Publication number
WO2006051123A1
WO2006051123A1 PCT/ES2004/000427 ES2004000427W WO2006051123A1 WO 2006051123 A1 WO2006051123 A1 WO 2006051123A1 ES 2004000427 W ES2004000427 W ES 2004000427W WO 2006051123 A1 WO2006051123 A1 WO 2006051123A1
Authority
WO
WIPO (PCT)
Prior art keywords
permanent magnet
control system
elements
activation
activating
Prior art date
Application number
PCT/ES2004/000427
Other languages
English (en)
Spanish (es)
Inventor
Evaristo GARCÍA RAMOS
Original Assignee
Investigación Y Transferencia De Tecnología, S.L.
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 Investigación Y Transferencia De Tecnología, S.L. filed Critical Investigación Y Transferencia De Tecnología, S.L.
Priority to PCT/ES2004/000427 priority Critical patent/WO2006051123A1/fr
Publication of WO2006051123A1 publication Critical patent/WO2006051123A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0073—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by relative movement between two magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • H01H36/004—Permanent magnet actuating reed switches push-button-operated, e.g. for keyboards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • H01H36/0066—Permanent magnet actuating reed switches magnet being removable, e.g. part of key pencil

Definitions

  • the present invention refers to a control system for the activation of an electrical circuit.
  • the system is applicable to the control of devices comprising an electrical circuit that is activated based on an activation code that a user must enter, such as in public telephones, and especially for the control of opening electric locks, based on the excitation of an electromagnet, electric motor or other similar electrical device, to act on mechanical elements that make it possible to open the lock itself.
  • the electromagnet excitation will be carried out from the action on a coding device, which can be a keyboard, a card reader, a signal terminal via radio, etc.
  • the electric lock with the opening control system object of the invention is applicable to any type of closet door, although preferably it is provided for those cabinet doors that lack an electrical power supply, such as the cabinets that they house equipment that does not require electrical power for its operation, specifically, those for the control of fluids such as water, gas, fuel, etc.
  • the aforementioned coding devices that are installed in the cabinets usually offer a low resistance to vandalism and climatic effects, with the problems and inconveniences that may arise in the event that the equipment contained in the cabinet is handled.
  • dialing keyboards are usually configured in such a way that, if in the case of acts of vandalism one or more keys are removed from the keyboard, access is open to the electrical part of the device which produces the possibility that the criminals can seriously damage the device.
  • the present invention has been provided to solve the drawbacks of the state of the art by means of a control system for the activation of an electrical circuit comprising a plurality of activating elements connected to at least one electrical circuit to activate the electrical circuit in response to an activation code composed of at least one activation signal received by at least one of said activator elements, and at least one inductor means for individually and selectively applying an activation signal to each activator element, in which the inductor means comprises the minus a permanent magnet that emits a magnetic field with a predetermined force; the activation signal to activate each of the activating elements is said magnetic field; said inducing means is movable towards a position of close activation and facing the activating element so that when the inducing means is in said activation position, the force of the magnetic field is received by one of the activating elements; the activating elements are arranged behind a separation wall of a material permeable to the magnetic field.
  • the inductor means (7) comprises a plurality of keys (7) and each key (7) comprises a first free end part, and a second end part located facing one of the activating elements ( 9,9'20,24) provided with a permanent magnet.
  • Each key is reversibly movable by pressing between said activation position and said inactive position, so that each key can be operated in such a way that it acts on one of the activating elements so that they activate the electrical circuit in response to an activation code consisting of a sequence of consecutive keystrokes applied to said keys.
  • each activating element is activated individually in response to the magnetic field emitted by the magnet.
  • the inducing means can be an external element, such as a marker that can be shaped like a punch, provided with the permanent magnet.
  • the inductor means may be comprised of a plurality of external elements or individual markers provided with separate permanent magnets.
  • the electrical circuit is activated when it receives simultaneous activation signals from at least two activating elements that have received the magnetic fields of at least two of said external elements.
  • the separation wall may conveniently be provided with two coupling elements facing each of said activating elements and which allow at least one external element to be removably coupled in a position where the permanent magnet is located at the activation distance of each of the activating elements
  • These coupling elements can be, for example, depressions in the same separation wall or through holes in an outer wall of a box attached to said separation wall.
  • each activating element comprises a second permanent magnet which, on its side facing the permanent magnet of the inductor means, has a magnetic field of polarity opposite to the polarity of the magnetic field of the magnetic field of the permanent magnet of the inductor element .
  • displacement means are provided that allow the displacement of the second permanent magnet between a disconnection position and a connection position to the electrical circuit, such that, when the inductor element is in the activation position, the second magnet permanent is attracted by said permanent magnet of the inductor means and moves towards said position of connection to the electrical circuit.
  • each activating element comprises a second permanent magnet which, on its side facing the permanent magnet of the inductor means has a magnetic field of polarity equal to the polarity of the magnetic field of the magnetic field of the permanent magnet of the inductor element .
  • the displacement means that allow the movement of the second permanent magnet between a disconnection position and a connection position to the electrical circuit are configured such that, when the inductor element is in the activation position and the second permanent magnet is repulsed by said permanent magnet of the inductor means, they allow this second magnet to move towards said position of connection to the electrical circuit.
  • the cabinet door incorporates an insulating plate of electricity and permeable to magnetic fields, as well as an electric lock associated with an electromagnet, such that by means of a coding device, such like a little box bearer of keys related to respective permanent magnets, or a marker provided at its end with a permanent magnet that can act on marking zones to establish the code that provides the signals corresponding to specific permanent magnets, through which action on means will be achieved located inside the cabinet and facing the magnets, said means being able to be materialized by relays mounted on interconnected printed circuits, or by sliding elements with contacts capable of establishing connection with the track of a printed circuit, so that both in one and in another case, carry out the excitation of the electromagnet associated with the lock and achieve its release and therefore allow the opening of the closet door in which the referred electric lock is located.
  • a coding device such like a little box bearer of keys related to respective permanent magnets, or a marker provided at its end with a permanent magnet that can act on marking zones to establish the code that provides the signals corresponding
  • each of them is mounted on a printed circuit board, so that the position of the permanent magnet carrier keys and the itinerary of the tracks of the printed circuits can be combined in such a way that they establish a unique path for the passage of current from a battery with which the coding device is incorporated, such as the case carrying the keys with the permanent magnets, towards the corresponding electromagnet.
  • the keys of the coding device can be sliding on respective guides, in which case the relays used will be of the "reed" type.
  • the means located inside the cabinet are constituted by sliding elements, they will have a contact capable of establishing or not connecting with the track of a single printed circuit, according to the performance or not of those sliding elements by part of the permanent magnets provided in the coding device.
  • the contacts through which the connection is established they are constituted by an elastic and conductive skate mounted on the sliding element itself, being able to make contact in some cases when it is at rest and in other cases when it is actuated by the action of the permanent magnets provided in the " coding device.
  • the coding device instead of being constituted by a box with keys as in the aforementioned cases, is constituted by a single marker element of insulating material that incorporates at its end a permanent magnet, which can act on the appropriate magnets provided for the purpose in the sliding elements incorporated inside the cabinet, which are carriers at their opposite end of two permanent magnets facing as many coils mounted on cores in solidarity with an additional printed circuit, all in such a way that the action by means of the marker on the appropriate areas marked on the front of the closet door, determining the opening code, carry with it the repulsion of the respective permanent magnets of the sliding elements and with it the displacement of these, producing the approximation of the permanent magnet provided at the opposite end of said element ntos sliding on the coils of the coils excited by the current provided by the supply battery, establishing the connection of the corresponding contacts to the sliding elements with the printed circuit and with it the activation of the electromagnet to allow the opening of the cabinet door .
  • the power is supplied through a separate battery to the cabinet.
  • the additional printed circuit is complemented by an additional sliding element whose actuation by means of the marker provides the power to the printed circuit itself and to a timer that disconnects the power and clears the opening code, after the preset timing time for carry out the opening of the closet door.
  • Figure 1. Shows a front perspective view of a cabinet portion that incorporates an electric lock and on said door an insulating plate of electricity and permeable to magnetic fields, facing which a box with keys has been arranged as a device of coding.
  • Figure 2. It shows a perspective view on the back side of the box that constitutes the coding device represented in the previous figure.
  • Figure 3. Shows the electrical scheme corresponding to the control system object of the invention.
  • Figure 4. Shows a sectional view of an embodiment of the system of the invention, based on relays that are activated by approaching, at a given time, permanent magnets provided at the internal ends of the keys corresponding to the coding device.
  • Figure 5. Shows a rear view of the box that constitutes the coding device located on the plate provided in the closet door.
  • Figure 6 shows a variant embodiment of the system of the invention, where the relays are in this case of the "reed" type, while the keys of the coding device are sliding.
  • the cabinet has power supply, therefore it is unnecessary to incorporate the battery of the box.
  • Figure 7. Shows another sectional view of a third embodiment of the system of the invention, wherein the Relays have been replaced by scrollable elements to establish contact or non-contact with the track of a printed circuit.
  • Figure 8. It shows a partial and front perspective view of the cabinet when the coding is established by actuating a marker element, observing on the front of the cabinet door the surface where the areas on which it is conveniently marked are indicated. to get the opening code. In this same figure you can see the area where the box will be attached, but in this case devoid of the keys.
  • Figure 9. Shows a rear view of the box shown in Figure 8, showing the complementary contacts or connecting pins established in the cabinet door.
  • Figure 10.- Shows a sectional view of another preferred embodiment based on that shown in Figure 7.
  • Figure 11.- It shows a perspective view like that of figure 8 without the cabinet to connect to the cabinet door, indicating that in this case the cabinet incorporates power.
  • Figure 12. It shows a sectional view like that of figure 10, but where the cabinet incorporates power supply, being able to check in this figure an additional sliding element that acts as a power supply switch, as well as a timer.
  • Figure 13 Shows a view of another embodiment in which the control system is mounted in a cabinet independent of the cabinet, with the appearance of a conventional keyboard.
  • Figure 14.- Shows a side sectional view of the embodiment of Figure 13.
  • a box 6 which as a whole constitutes a coding device for the excitation of the electromagnet 5 and therefore for the opening of the lock 4, whose device or box 6 is independent and includes a plurality of keys 7 which at its rear end are carriers of as many permanent magnets 8, which are faced with as many relays 9 that are mounted on respective printed circuits 10 interconnected with each other according to reference 11 of Figure 4.
  • the position of the keys 7 and the drawing of the tracks of the printed circuits 10 can be combined in such a way that they establish a unique path for the passage of the current from a battery 12 provided in the box 6 of the coding device to the electromagnet 5 of the electric lock 4, the excitation of the latter being produced and the respective unlocking of the lock, allowing the opening of the door 2 where such a lock 4 is mounted.
  • the relays 9 are activated by the action of the magnetic field from the corresponding permanent magnets 8 of the keys 7, when they are pressed and the respective or respective permanent magnets 8 are located close to the relays 9, as seen in the lower key 7 with its permanent magnet 8 located in the lower part of figure 4, which will face the respective relay 9 causing its activation.
  • two metallic and elastic contacts 13 are provided in connection with the contacts 14 provided in the fixed plate 3, so that through these contact pairs 13-14 the current necessary for the excitation of the electromagnet is provided 5 and for feeding an element 15 which can be a pilot or buzzer 15, which is fed through the pairs of contacts 16 and 17, as seen in the electrical diagram of Figure 3.
  • an element 15 which can be a pilot or buzzer 15, which is fed through the pairs of contacts 16 and 17, as seen in the electrical diagram of Figure 3.
  • Figure 6 shows an alternative embodiment in which the keys 7 'carrying the permanent magnets 8' are mounted with sliding character on respective guides 19, while the relays 9 'are in this case of the "reed" type, counting the cabinet in this case with power supply or 12 'battery.
  • an acoustic warning or buzzer 15 ' is provided which will be activated through the connection between flexible contacts 16' and 17 ', which is required by the spring or spring 18 'towards the actual contact position.
  • the person authorized to carry out the opening of the cabinet 1 will have the box or coding device 6 provided with the keys 7, or if necessary 7 ', carriers of the permanent magnets 8 or 8', so that knowing the key corresponding will act on the appropriate keys 7 or 7 'whose magnets 8 or 8' will approach the relays 9 or 9 ', all prior arrangement of the box or coding device 6 on the fixed plate 3 provided for this purpose in the door 2 of the closet 1.
  • elements 20 that are sliding are provided, both through a single printed circuit board 21 and through a guide plate 22 , whose sliding elements 20 are required towards a permanent resting position by means of respective springs 23 arranged around the corresponding sliding element 20, between the guide plate 22 and a permanent magnet 24 established for this purpose at the end of the sliding element 20, and whose other end is a carrier of an elastic contact and conductor 25, constituting a skate, which can make contact on one of the faces of the printed circuit 21, it being provided that the elastic and conductive contact 25 associated with certain movable elements 20 can establish contact on one of the faces of the printed circuit 21, while otherwise the contact or contacts 25 may rest on the opposite side , as clearly shown in Fig. 7.
  • the permanent magnets 24 provided in the sliding elements 20 face the permanent magnets 8 of the keys 7, so that their action, specifically those that form the combination to lead to after the excitation of the electromagnet 5, they will bring the corresponding permanent magnet 8 closer to the permanent magnet 24 of the sliding element 20 in question, producing in some cases the connection of the contacts 25, thus forming the combination or opening code, based on to which, through the power supply battery 12, the excitation of the electromagnet 5 and corresponding unlocking of the lock is achieved, in exactly the same way as it was established in relation to the embodiment represented in figure 4.
  • the opening code instead of being set through the keys of a box 6 is established through a marker element 26 of insulating material, the end of which is carrier of a permanent magnet 8 ", so that in this case the corresponding box 6 'lacks the keys by which the opening code was previously established, being provided to incorporate the corresponding power battery as in the previous cases, as well as the metal and elastic contacts 13 and 16 in combination with contacts 14 and 17 provided for this purpose in the door 2 of the cabinet, including the case 6 'the buzzer pilot 15, as shown in Figure 8.
  • a surface 27 with marked and identified areas has been provided on the door 2 of the cabinet 1, on which the permanent magnet 8 1 of the marker 26 can be positioned to establish the corresponding opening code.
  • an additional printed circuit 28 is incorporated on which some cores 29 are syntaxed temporarily while current flows through the coils 30 mounted on these cores 29, a current that is logically supplied by the battery 12 provided in the box 6 1 .
  • the corresponding permanent magnets 24 are arranged in solidarity with the sliding elements 20 carrying the elastic skates constituting the contacts 25, there being a plate 22 which is crossed by those sliding elements 20, the corresponding springs 23 and the printed circuit 21.
  • a permanent magnet 31 capable of being retained by the corresponding core 29, when the corresponding sliding element 20 is displaced by the action of marker 26, retention that can be maintained after removing the own marker 26.
  • the coils 30 stop receiving current and therefore the cores 29 are deactivated, the opening code being deleted.
  • the box 6' is not necessary, this embodiment corresponding to that shown in Figures 11 and 12.
  • the printed circuit 28 is complemented by an additional sliding element 20' with its corresponding permanent magnets and ends 24 and 31, and spring 23, the permanent magnet facing each other 31 to the respective core 29 with its coil 30, so that through that device, as shown in Figure 12, the circuit is fed into and a timer 32 which, after the time necessary to open the lock, disconnects the power supply 12 'and clears the opening code, so that additional element acts as a switch in the case referred to.
  • an indicator light 33 is provided, intended to indicate that the circuit is powered and the code can begin to be dialed, also having a pilot 34 indicating that the electromagnet 5 has been activated and the lock can be opened.
  • the external element 26 is a marker. This element acts on the magnet 24 integral to a strip 35 that establishes electrical contact with the plate 36, both metal parts being welded to the printed circuit 21.
  • the marker element 26 is not at the activation distance and therefore not It acts on the magnet 24, this is attracted to the iron piece 37 which retains it with a force much lower than the repulsion caused by the magnet 8 ' 1 when it is at the activation distance.
  • the housing 39 is mounted in a housing 39 independent from which the electrical signal cable 40 comes out.
  • the housing 39 is provided with depressions 38 of conical or similar shape, presenting a conventional keyboard appearance, but without presenting movable keys.

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  • Lock And Its Accessories (AREA)

Abstract

Système de commande pour actionnement d'un circuit électrique comportant une pluralité d'éléments actionneurs (9, 9', 20, 24) connectés à un circuit électrique pour actionner le circuit électrique après réception d'un code d'actionnement composé d'au moins un signal d'actionnement reçu en provenance des éléments actionneurs (9, 9', 20, 24), et au moins des moyens inducteurs (7, 26) conçus pour appliquer un signal d'actionnement à chaque élément actionneur (9, 9', 20, 24), les moyens inducteurs (7, 26) et les éléments actionneurs (9, 9', 20, 24) étant disposés derrière une paroi de séparation (3, 27) perméable au champ magnétique. Les moyens inducteurs (7, 26) comprennent au moins un aimant permanent (8, 8', 8'') qui émet un champ magnétique et se déplace dans une position d'actionnement proche et opposée à chaque élément actionneur (9, 9', 20, 24) de manière que, lorsque les moyens inducteurs (7, 26) se trouvent dans la position d'actionnement, le champ magnétique qui constitue le signal d'actionnement est reçu par l'élément actionneur (9, 9', 20, 24).
PCT/ES2004/000427 2004-09-30 2004-09-30 Systeme de commande pour l'actionnement d'un circuit electrique WO2006051123A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/ES2004/000427 WO2006051123A1 (fr) 2004-09-30 2004-09-30 Systeme de commande pour l'actionnement d'un circuit electrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2004/000427 WO2006051123A1 (fr) 2004-09-30 2004-09-30 Systeme de commande pour l'actionnement d'un circuit electrique

Publications (1)

Publication Number Publication Date
WO2006051123A1 true WO2006051123A1 (fr) 2006-05-18

Family

ID=36336229

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2004/000427 WO2006051123A1 (fr) 2004-09-30 2004-09-30 Systeme de commande pour l'actionnement d'un circuit electrique

Country Status (1)

Country Link
WO (1) WO2006051123A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4258346A (en) * 1979-02-09 1981-03-24 Williams Roger W Magnetically actuated digital switch
EP0204050A1 (fr) * 1985-05-31 1986-12-10 Bernard Danglot Clavier de commande électrique ou électronique
FR2618017A1 (fr) * 1987-07-09 1989-01-13 Quinet Edgard Clavier a commande magnetique
FR2623011A1 (fr) * 1987-07-09 1989-05-12 Quinet Edgard Bouton poussoir a commande magnetique
US5063478A (en) * 1988-06-03 1991-11-05 Bernard Danglot Electrical or electronic control key pad

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4258346A (en) * 1979-02-09 1981-03-24 Williams Roger W Magnetically actuated digital switch
EP0204050A1 (fr) * 1985-05-31 1986-12-10 Bernard Danglot Clavier de commande électrique ou électronique
FR2618017A1 (fr) * 1987-07-09 1989-01-13 Quinet Edgard Clavier a commande magnetique
FR2623011A1 (fr) * 1987-07-09 1989-05-12 Quinet Edgard Bouton poussoir a commande magnetique
US5063478A (en) * 1988-06-03 1991-11-05 Bernard Danglot Electrical or electronic control key pad

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