EP0880669A1 - Time-programmable priming device - Google Patents

Time-programmable priming device

Info

Publication number
EP0880669A1
EP0880669A1 EP96943151A EP96943151A EP0880669A1 EP 0880669 A1 EP0880669 A1 EP 0880669A1 EP 96943151 A EP96943151 A EP 96943151A EP 96943151 A EP96943151 A EP 96943151A EP 0880669 A1 EP0880669 A1 EP 0880669A1
Authority
EP
European Patent Office
Prior art keywords
programming
capacitor
primer
microcontroller
time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96943151A
Other languages
German (de)
French (fr)
Other versions
EP0880669B1 (en
Inventor
Jean-Louis Boyer
André Joseph Nestor GILSON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JASON ENGINEERING SA
Direction General pour lArmement DGA
Etat Francais
Original Assignee
JASON ENGINEERING SA
Direction General pour lArmement DGA
Etat Francais
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 JASON ENGINEERING SA, Direction General pour lArmement DGA, Etat Francais filed Critical JASON ENGINEERING SA
Publication of EP0880669A1 publication Critical patent/EP0880669A1/en
Application granted granted Critical
Publication of EP0880669B1 publication Critical patent/EP0880669B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C11/00—Electric fuzes
    • F42C11/06—Electric fuzes with time delay by electric circuitry
    • F42C11/065—Programmable electronic delay initiators in projectiles

Definitions

  • the present invention relates to the field of electrical firing mechanisms and, more particularly, that of the ignition device of an ignition detonator for projectiles, missiles, mines and miniature bombs comprising an electrical supply and means for delaying the action of a firing element of a primer.
  • priming devices comprising means for delaying the action of a firing element of the primer.
  • timing means are generally electronic and their failure can lead to a premature action of the element on the primer and therefore to the explosion of the machine with which they are associated. It goes without saying that this explosion can have serious consequences for the user (s).
  • patent FR2670576 describes a device for neutralizing or combat vehicles comprising a housing, a pyrotechnic chain deactivated by mechanical safety means, in this case a clock, and a timer which can be adjusted by means of transmission.
  • One of the aims of the invention is to overcome these drawbacks by proposing a secure electronic or electromechanical ignition device, the programming of the timing of which can be carried out simultaneously on several ignition devices in order to obtain synergy. perfect.
  • a device for initiating a detonator comprises an electrical supply providing a first intensity, to a circuit comprising means for delaying the action of a firing element of a primer and to means capable of generating, at the expiration of the delay time, a second intensity sufficient to actuate said element, the first issue from the power supply, not being.
  • these means consist of a capacitor, switching means, and control means of these switching means making it possible to charge this capacitor during a charging time (Tp2), then to discharge it, this discharging causing the action of the element on the primer.
  • a device for igniting a detonator comprises an electrical supply of the means for delaying the action of a firing element of a primer , and means capable of generating, at the end of the delay time, an intensity sufficient to actuate said element, the latter means comprising a capacitor, switching means, and means for controlling these switching means making it possible to charge this capacitor during a charging time, then discharge it, this discharging causing the element to act on the primer, the control means being constituted by a microcontroller
  • the switching means which may be constituted, for example, by transistors
  • the delay means comprise means for programming the delay duration, these means being able to be wholly or partly integrated into the initiating device.
  • These means can, for example, example, consist of coding wheels or a microcomputer
  • these means consist of external means comprising an electrical supply, a micro-controller, a display, two programming switches and transfer means constituted by phototransistors
  • a priming device comprises trapping means which can consist of a circuit comprising switching means, the opening of which causes the ignition of the primer
  • the subject of the invention is also a method for securing a device for initiating a detonator of the type comprising an electrical supply and means for delaying the action of a firing element of the primer, characterized in that it consists, at the end of the delay time, in charging a capacitor and then discharging it to cause ignition
  • FIG. 1 presents a simplified general diagram of the device according to the invention
  • FIG. 2 shows a diagram of the main programming means
  • FIG. 3 shows an alternative embodiment of the invention
  • FIG. 4 shows a diagram of the external programming means according to a particular embodiment of the invention.
  • FIG. 5 shows a particular embodiment of the invention.
  • FIG. 1 shows a diagram of the main means constituting a device for igniting a detonator primer according to the invention.
  • These means are of the type comprising a box inside which are disposed means of electrical supply 10 of a circuit mainly comprising a resistor 12 for igniting the primer 13, means 20 for closing the circuit as well as means 30 for delaying firing after closing of the circuit.
  • the supply means 10 are constituted by two lithium batteries delivering a voltage of 6V.
  • the means 20 for closing the circuit consist of a mechanical lock 21 with two positions A and C which is connected to a U-shaped key 22, placed in a retrei ⁇ t on the outside of the housing and of which rotation allows the lock to be placed in the desired position.
  • the means 30 for delaying the ignition include means 32 for programming a delay time, means 34 for switching the supply circuit of the ignition resistor 12 as well as a capacitor 36 providing an intensity 12 during its discharge, the intensity 11 of the charging current of this capacitor being insufficient to cause the ignition of the primer.
  • the programming means 32 are constituted by coding wheels 38 and by a microcontroller 40. These coding wheels are luminescent so as to allow programming both at night and during the day.
  • the microcontroller 40 controls the opening and / or closing of the switching means 34.
  • these switching means 34 comprise first means 41 constituted by an electromechanical safety device 41 comprising a mechanical clock, associated with a mechanical inverter which is normally in the open position and which closes the circuit on expiration of a predetermined duration of operation of this clock.
  • Second means constituted by a transistor 50 whose source is connected to the power supply 10, the gate to the microcontroller 40 and the drain at the input of the inverter of the electromechanical assembly 41, and a transistor 55 whose source is connected to the ignition resistor 12, the grid to the microcontroller 40 and the drain at the output of the inverter.
  • Third means consist of a switch 65, with tempo ⁇ sée closure, arranged between the electrical supply 10 and the microcontroller 40
  • the drain 53 of the transistor 50 is connected to a short-circuit transistor 60 itself connected to the microcontroller 40 and to the ground.
  • resistors 70, 71, 72 for limiting the intensity of the current are disposed on the circuit upstream of the electromechanical means and between the microcontroller and the transistor 55 so that, in the event of failure of the transistors and the electromechanical means, the starting resistance 12 is crossed by a current whose intensity is insufficient to trigger the detonator
  • signaling means 81 and 80 are disposed respectively downstream of the tempo ⁇ sée closing switch 65 and in parallel with the starting resistor 12
  • the means 35 Constituted by the elements 10 and 36, are capable of generating, at the expiration of the delay time, an intensity 12 sufficient to actuate the ignition resistor 12, the power supply 10 providing an intensity 11 able to charge the capacitor and the latter providing an intensity 12 during its discharge
  • the programming means are constituted by a external programming device 100 and by information transfer means, by direct contact such as an RS232 socket or of the transmission / reception type, for example with photo-transistors
  • the circuit closure means are preferably constituted by a mechanical lock 21 with three positions AB and C, position A in which all the electronic means are grounded, position B in which the capacitor 36 is grounded and the other electronic means are supplied, the position C which follows the position B and in which the capacitor 36 is connected to the circuit after a safety delay generated by the electromechanical safety device 41
  • the external device 100 may consist of a portable type microcomputer into which software is introduced, this software allowing the user to indicate in particular the time of ignition either in the form of a date, thus requiring the introduction of the programming date if it does not already exist in the microcomputer, either in the form of a delay time.
  • This external device 100 can also be constituted by an assembly comprising a power supply 110, a microcontroller 140, a display 145, two programming switches 146, 147, and an on / off switch 11, and the transfer means. include phototransistors, 148,149 associated with phototransistors arranged in the housing.
  • the selection of parameters is made via a pre-programmed drop-down menu.
  • the data is displayed by block and all the parameters linked to a block appear next to each other so that an overall view of the evolution of each of them is maintained during block programming. .
  • DATE corresponding to the date of programming
  • TRANSMISSION the validation of this block causes the transfer of the programmed data to the igniter.
  • the two switches 146, 147 one has the function of validating the proposed data displayed and of displaying the first data of the following parameter which can be of the same block or the first of the following block.
  • a trapping module 200 of the contact opening type is added to the means described in the first embodiment previously mentioned.
  • This module consists of a closed circuit, supplied by the supply means described above and comprising a certain number of contactors, the opening mode of which depends on the type of trapping, and connected to the microcontroller 40.
  • these contactors can be with remote-controlled opening, or inertial, or more simply a trip wire resting on the ground in the environment of the igniter.
  • the batteries are placed in the housing before use and the mechanical lock 21 is in position A, the means 20 and 30 therefore not being electrically supplied.
  • the circuit of reception comprises two phototransistors 48,49 placed as close as possible to a part of the housing which is transparent to the radiation emitted by the phototra ⁇ sistors 148, 149 of the device 100
  • the housing includes a notch allowing precise positioning of the phototransistors, respectively means programming 100 and firing means, facing each other
  • the microcontroller of the assembly 100 controls the progress of a menu which is written by block on the display 145, the passage to the next parameter of the same block or to the next block being effected by action on one of the programming switches 146, 147, the other serving for the validation of the parameters and their transmission to the device for
  • the menu can, for example, comprise two blocks, one relating to the desired duration D1 of delay in a format day / hour / minute / second, that is to say four parameters, and the other relating to the validation of these parameters and to the transmission of these parameters via phototra ⁇ sistors 148, 149, 48,49
  • the validation of the TRANSMISSION block causes the transfer of these parameters from the device 100 to the priming device.
  • the microcontroller 40 returns a copy of the parameters received by the device 100 which verifies their conformity with those previously issued and issues an acknowledgment releasing the transmission
  • the firing means are then positioned on a suitable explosive device.
  • a suitable explosive device In the case of a mine, it can be positioned on the objective to be destroyed, by the user, who then proceeds to rotate the key 22 up to '' in position C then when it is removed from the housing in order to prevent any access, by an unauthorized person, to lock 21
  • the firing may not possibly occur, in any case, only after the expiration of this time Tp1
  • the microcontroller 40 deactivates the short-circuit transistor 60, and activates the transistor 50 which then turns on.
  • the capacitor 36 then charges and at the end of a preprogrammed time Tp2 , called the charging time of the capacitor, the microcontroller 40 activates the transistor 55 which becomes on, then allowing the discharge of the capacitor 36 through this transistor 55 and the starting resistor 12, the intensity 12 flowing in the latter being sufficient to trigger the detonator
  • Charging the capacitor only at the end of a delay period increases the reliability of the device since no leakage current from the capacitor occurs during this period.
  • the charge time Tp2 of the capacitor be long compared to its discharge time.
  • the capacitor charging process can reach, on its own, a non-degradable safety requirement.
  • the safety time is then that which is just less than the time which results in a significant charge of the capacitor, i.e. suitable for causing the ignition of the primer during its discharge II is adjustable by the charging current
  • an electromechanical safety device 41 is not necessary, and this, that the charging of the capacitor is carried out at power up or before firing
  • the use of the electromechanical safety device 41 is required
  • the temporally closed switch 65 can be inserted in the circuit so as to generate an additional safety delay Tp3 before any firing when the user turns the key from position A to position C
  • This delay is, in this variant embodiment, an operational safety delay, during this delay, which is an integral part of the duration D1, all functions switching of the transistors 50, 60, 55, of the microcontroller 40 are inhibited
  • the mechanical timer clock for electromechanical safety means 41 is triggered. At the expiration of a preprogrammed time Tp1 for operating this clock, it produces the tilting of the mechanical inverter associated with it and therefore the closing of the part of the circuit located between the transistor 50 and the capacitor 36.
  • the switch 65 and the clock therefore constitute two safety elements triggered simultaneously and of a different nature, one electrical acts on the microcontroller 40 and the other, mechanical, acts on the capacitor 36, the initiation of the detonator. cannot be performed before the highest value of times Tp1 and Tp3.
  • Another mode of operation of the previously described device consists in authorizing the firing of the primer 13 via the trapping module 200 at the expiration of the longest of the delays Tp1 and Tp3, and this, throughout the programmed delay time. , and, if necessary, to inhibit the transistors 50 and 55 at the end of this time delay, thus making the device inert and recoverable.
  • the reaction time between actuating the trapping and igniting the primer is, in this case, equal to Tp2.
  • the timing means can be simplified as shown in FIG. 5.
  • the priming device then comprises an electrical supply 310, in this case batteries, a timed opening relay 330, a time-delayed relay 335, a capacitor 336 and a starting resistor 12 of the primer 13.
  • the two relays are energized.
  • the relay 330 being first of all closed, the capacitor charges.
  • This relay 330 opens after a time Tp4, then the relay 335 closes and the capacitor 336 then discharges into the resistor 12, causing the ignition of the primer 13.
  • the discharge of the capacitor feeds a solenoid whose activation causes the unlocking of the electromechanical part which initiates the detonator.
  • the trapping means With regard to the trapping means, the accidental breaking of the tripping wire or the opening of an inertial contactor when the ignition device is moved, cause the detonator to fire.
  • the priming cannot take place before the expiration of the times Tp1 of intrinsic safety and Tp3 of operational safety generated by the electromechanical means and / or the timed switch 65.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Electrotherapy Devices (AREA)
  • Programmable Controllers (AREA)

Abstract

An electrical firing mechanism and specifically a detonator priming device comprising an electric power supply providing a first current (I1) to a circuit which includes means (30) for timing the operation of a firing element (12) that fires a primer (13), and to means (35) for generating a second current (I2) after the end of the timing period, said second current (I2) being sufficient to actuate said element (12) whereas the first current (I1) from the power supply is not.

Description

DISPOSITIF D'AMORÇAGE A TEMPS PROGRAMMABLE PROGRAMMABLE TIME PRIMING DEVICE
La présente invention concerne le domaine des mécanismes de mise à feu électrique et, plus particulièrement, celui des dispositifs d'amorçage d'un détonateur d'allumage pour projectiles, missiles, mines et bombes miniatures comportant une alimentation électrique et des moyens de temporisation de l'action d'un élément de mise à feu d'une amorce.The present invention relates to the field of electrical firing mechanisms and, more particularly, that of the ignition device of an ignition detonator for projectiles, missiles, mines and miniature bombs comprising an electrical supply and means for delaying the action of a firing element of a primer.
U est connu d'utiliser des dispositifs d'amorçage comportant des moyens de temporisation de l'action d'un élément de mise à feu de l'amorce.It is known to use priming devices comprising means for delaying the action of a firing element of the primer.
Ces moyens de temporisation sont généralement électroniques et leur défaillance peut conduire à une action prématurée de l'élément sur l'amorce et donc à l'explosion de l'engin auquel ils sont associés. Il va de soi que cette explosion peut avoir des conséquences graves sur le ou les utilisateurs.These timing means are generally electronic and their failure can lead to a premature action of the element on the primer and therefore to the explosion of the machine with which they are associated. It goes without saying that this explosion can have serious consequences for the user (s).
Pour éviter ce problème, le brevet FR2670576 décrit un dispositif de neutralisation ou d'engins de combat comportant un boîtier, une chaîne pyrotechnique désactivée par des moyens de sûreté mécanique, en l'occurrence une horloge, et une minuterie pouvant être réglée par des moyens de transmission.To avoid this problem, patent FR2670576 describes a device for neutralizing or combat vehicles comprising a housing, a pyrotechnic chain deactivated by mechanical safety means, in this case a clock, and a timer which can be adjusted by means of transmission.
Toutefois, un tel dispositif présente un inconvénient lorsque l'on souhaite amorcer simultanément plusieurs engins de neutralisation. En effet, il est nécessaire de programmer chacune des minuteries en tenant compte du temps mis pour programmer les précédentes. Une telle programmation ne peut donc être qu'imprécise et conduit à des explosions successives puisque ne permettant pas la simultanéité de plusieurs mises à feu.However, such a device has a drawback when it is desired to initiate several neutralization devices simultaneously. Indeed, it is necessary to program each of the timers taking into account the time taken to program the previous ones. Such programming can therefore only be imprecise and leads to successive explosions since it does not allow the simultaneity of several ignitions.
L'un des buts de l'invention est de pallier ces inconvénients en proposant un dispositif d'amorçage électronique ou électromécanique sûr et dont la programmation de la temporisation peut être réalisée simultanément sur plusieurs dispositifs d'amorçage dans le but d'obtenir une synergie parfaite.One of the aims of the invention is to overcome these drawbacks by proposing a secure electronic or electromechanical ignition device, the programming of the timing of which can be carried out simultaneously on several ignition devices in order to obtain synergy. perfect.
Aussi, selon l'invention, un dispositif d'amorçage d'un détonateur, comporte une alimentation électrique fournissant une première intensité, à un circuit comportant des moyens de temporisation de l'action d'un élément de mise à feu d'une amorce et à des moyens aptes à générer, à l'expiration de la durée de temporisation, une deuxième intensité suffisante pour actionner ledit élément, la première issue de l'alimentation, ne l'étant pas.Also, according to the invention, a device for initiating a detonator, comprises an electrical supply providing a first intensity, to a circuit comprising means for delaying the action of a firing element of a primer and to means capable of generating, at the expiration of the delay time, a second intensity sufficient to actuate said element, the first issue from the power supply, not being.
Selon une caractéristique particulière, ces moyens sont constitués par un condensateur, des moyens de commutation, et des moyens de commande de ces moyens de commutation permettant de charger ce condensateur pendant un temps de charge (Tp2), puis de le décharger, ce déchargement provoquant l'action de I' élément sur l'amorce. Selon une autre variante de l'invention permettant d'adjoindre de nombreux dispositifs connexes, un dispositif d'amorçage d'un détonateur comporte une alimentation électrique des moyens de temporisation de l'action d'un élément de mise à feu d'une amorce, et des moyens aptes à générer, à l'expiration de la durée de temporisation, une intensité suffisante pour actionner ledit élément, ces derniers moyens comportant un condensateur, des moyens de commutation, et des moyens de commande de ces moyens de commutation permettant de charger ce condensateur pendant un temps de charge, puis de le décharger, ce déchargement provoquant l'action de l'élément sur l'amorce, les moyens de commande étant constitués par un micro-contrôleurAccording to a particular characteristic, these means consist of a capacitor, switching means, and control means of these switching means making it possible to charge this capacitor during a charging time (Tp2), then to discharge it, this discharging causing the action of the element on the primer. According to another variant of the invention making it possible to add numerous related devices, a device for igniting a detonator comprises an electrical supply of the means for delaying the action of a firing element of a primer , and means capable of generating, at the end of the delay time, an intensity sufficient to actuate said element, the latter means comprising a capacitor, switching means, and means for controlling these switching means making it possible to charge this capacitor during a charging time, then discharge it, this discharging causing the element to act on the primer, the control means being constituted by a microcontroller
Par ailleurs, les moyens de commutation pouvant être constitués, par exemple, par des transistorsFurthermore, the switching means which may be constituted, for example, by transistors
Afin d'améliorer la flexibilité d'emploi du dispositif, il est préférable que les moyens de temporisation comportent des moyens de programmation de la durée de temporisation, ces moyens pouvant être en tout ou partie intégrés au dispositif d'amorçage Ces moyens peuvent, par exemple, consister en des roues codeuses ou en un micro-ordinateurIn order to improve the flexibility of use of the device, it is preferable that the delay means comprise means for programming the delay duration, these means being able to be wholly or partly integrated into the initiating device. These means can, for example, example, consist of coding wheels or a microcomputer
Selon une caractéristique particulière, ces moyens consistent en des moyens extérieurs comportant une alimentation électrique, un micro-contrôieur , un afficheur, deux interrupteurs de programmation et en des moyens de transfert constitués par des phototransistorsAccording to a particular characteristic, these means consist of external means comprising an electrical supply, a micro-controller, a display, two programming switches and transfer means constituted by phototransistors
Selon une autre caractéristique permettant d'éviter la neutralisation de l'engin par une personne non habilitée ou d'anticiper volontairement la mise à feu, un dispositif d'amorçage selon l'invention comporte des moyens de piégeage pouvant consister en un circuit comprenant des moyens de commutation et dont l'ouverture provoque la mise à feu de l'amorceAccording to another characteristic making it possible to avoid neutralization of the machine by an unauthorized person or to voluntarily anticipate ignition, a priming device according to the invention comprises trapping means which can consist of a circuit comprising switching means, the opening of which causes the ignition of the primer
Enfin, l'invention a aussi pour objet un procédé de sécurisation d'un dispositif d'amorçage d'un détonateur du type comportant une alimentation électrique et des moyens de temporisation de l'action d'un élément de mise à feu de l'amorce, caractérisé en ce qu'il consiste, à l'expiration de la durée de temporisation, à charger un condensateur puis à le décharger pour provoquer la mise à feuFinally, the subject of the invention is also a method for securing a device for initiating a detonator of the type comprising an electrical supply and means for delaying the action of a firing element of the primer, characterized in that it consists, at the end of the delay time, in charging a capacitor and then discharging it to cause ignition
D'autres avantages et caractéristiques de la présente invention apparaîtront dans la description de plusieurs variantes de réalisation, en regard des figures annexées parmi lesquelles - la figure 1 présente un schéma général simplifié du dispositif selon l'invention,Other advantages and characteristics of the present invention will appear in the description of several alternative embodiments, with reference to the appended figures among which - FIG. 1 presents a simplified general diagram of the device according to the invention,
- la figure 2 montre un schéma des principaux moyens de programmation,FIG. 2 shows a diagram of the main programming means,
- sur la figure 3, est représentée une variante de réalisation de l'invention - la figure 4 montre un schéma des moyens extérieurs de programmation selon une variante particulière de réalisation de l'invention.- Figure 3 shows an alternative embodiment of the invention - Figure 4 shows a diagram of the external programming means according to a particular embodiment of the invention.
- la figure 5 montre un mode de réalisation particulier de l'invention.- Figure 5 shows a particular embodiment of the invention.
La figure 1 montre un schéma des principaux moyens constitutifs d'un dispositif de mise à feu d'une amorce de détonateur selon l'invention. Ces moyens sont du type comportant un boîtier à l'intérieur duquel sont disposés des moyens d'alimentation électrique 10 d'un circuit comprenant principalement une résistance 12 de mise à feu de l'amorce 13, des moyens 20 de fermeture du circuit ainsi que des moyens 30 de temporisation de la mise à feu après fermeture du circuit. Les moyens 10 d'alimentation sont constitués par deux piles au lithium délivrant une tension de 6V.FIG. 1 shows a diagram of the main means constituting a device for igniting a detonator primer according to the invention. These means are of the type comprising a box inside which are disposed means of electrical supply 10 of a circuit mainly comprising a resistor 12 for igniting the primer 13, means 20 for closing the circuit as well as means 30 for delaying firing after closing of the circuit. The supply means 10 are constituted by two lithium batteries delivering a voltage of 6V.
Dans cette variante de réalisation, les moyens 20 de fermeture du circuit sont constitués par un verrou mécanique 21 à deux positions A et C qui est relié à une clé 22 en forme de U, placée dans un rétreiπt sur l'extérieur du boîtier et dont la rotation permet de placer le verrou dans la position souhaitée.In this alternative embodiment, the means 20 for closing the circuit consist of a mechanical lock 21 with two positions A and C which is connected to a U-shaped key 22, placed in a retreiπt on the outside of the housing and of which rotation allows the lock to be placed in the desired position.
Comme montré sur la figure 2, les moyens 30 de temporisation de la mise à feu comportent des moyens 32 de programmation d'une durée de temporisation, des moyens 34 de commutation du circuit d'alimentation de la résistance 12 d'amorçage ainsi qu'un condensateur 36 fournissant une intensité 12 lors de sa décharge, l'intensité 11 du courant de charge de ce condensateur étant insuffisante pour provoquer la mise à feu de l'amorce.As shown in FIG. 2, the means 30 for delaying the ignition include means 32 for programming a delay time, means 34 for switching the supply circuit of the ignition resistor 12 as well as a capacitor 36 providing an intensity 12 during its discharge, the intensity 11 of the charging current of this capacitor being insufficient to cause the ignition of the primer.
Dans cette première variante de réalisation, les moyens de programmation 32 sont constitués par des roues codeuses 38 et par un micro-contrôleur 40. Ces roues codeuses sont luminescentes de manière à permettre la programmation aussi bien la nuit que le jour.In this first alternative embodiment, the programming means 32 are constituted by coding wheels 38 and by a microcontroller 40. These coding wheels are luminescent so as to allow programming both at night and during the day.
Le micro-contrôleur 40 commande l'ouverture et/ou la fermeture des moyens de commutation 34.The microcontroller 40 controls the opening and / or closing of the switching means 34.
Comme montré sur la figure 3, ces moyens 34 de commutation comportent des premiers moyens 41 constitués par un dispositif électromécanique de sécurité 41 comprenant une horloge mécanique, associée à un inverseur mécanique qui est normalement en position ouvert et qui ferme le circuit à l'expiration d'une durée prédéterminée de fonctionnement de cette horloge.As shown in FIG. 3, these switching means 34 comprise first means 41 constituted by an electromechanical safety device 41 comprising a mechanical clock, associated with a mechanical inverter which is normally in the open position and which closes the circuit on expiration of a predetermined duration of operation of this clock.
Ils comportent des seconds moyens constitués par un transistor 50 dont la source est reliée à l'alimentation 10, la grille au micro-contrôleur 40 et le drain à l'entrée de l'inverseur de l'ensemble électromécanique 41 , et un transistor 55 dont la source est reliée à la résistance d'amorçage 12, la grille au micro-contrôleur 40 et le drain à la sortie de l' inverseur. Des troisièmes moyens sont constitués par un interrupteur 65, à fermeture tempoπsée, disposé entre l'alimentation électrique 10 et le micro-contrôleur 40They comprise second means constituted by a transistor 50 whose source is connected to the power supply 10, the gate to the microcontroller 40 and the drain at the input of the inverter of the electromechanical assembly 41, and a transistor 55 whose source is connected to the ignition resistor 12, the grid to the microcontroller 40 and the drain at the output of the inverter. Third means consist of a switch 65, with tempoπsée closure, arranged between the electrical supply 10 and the microcontroller 40
De plus, le drain 53 du transistor 50 est connecté à un transistor 60 de court circuit lui-même relié au micro-contrôleur 40 et à la masse En outre, des résistances 70,71 ,72 de limitation de l'intensité du courant sont disposées sur le circuit en amont des moyens électromécaniques et entre le micro-contrôleur et le transistor 55 de sorte que, en cas de défaillance des transistors et des moyens électromécaniques, la résistance d'amorçage 12 soit traversée par un courant dont l'intensité est insuffisante pour provoquer l'amorçage du détonateurIn addition, the drain 53 of the transistor 50 is connected to a short-circuit transistor 60 itself connected to the microcontroller 40 and to the ground. In addition, resistors 70, 71, 72 for limiting the intensity of the current are disposed on the circuit upstream of the electromechanical means and between the microcontroller and the transistor 55 so that, in the event of failure of the transistors and the electromechanical means, the starting resistance 12 is crossed by a current whose intensity is insufficient to trigger the detonator
De surcroît, des moyens de signalisation 81 et 80 sont disposés respectivement en aval de l'interrupteur à fermeture tempoπsée 65 et en parallèle de la résistance d'amorçage 12In addition, signaling means 81 and 80 are disposed respectively downstream of the tempoπsée closing switch 65 and in parallel with the starting resistor 12
Enfin, les moyens 35 .constitués par les éléments 10 et 36, sont aptes à générer, a l'expiration de la durée de temporisation, une intensité 12 suffisante pour actionner la résistance d'amorçage 12, l'alimentation 10 fournissant une intensité 11 apte à charger le condensateur et ce dernier fournissant une intensité 12 lors de sa déchargeFinally, the means 35. Constituted by the elements 10 and 36, are capable of generating, at the expiration of the delay time, an intensity 12 sufficient to actuate the ignition resistor 12, the power supply 10 providing an intensity 11 able to charge the capacitor and the latter providing an intensity 12 during its discharge
Dans ce mode de réalisation, où les moyens de programmation sont constitués par des roues codeuses 38, lorsque le verrou mécanique 21 est en position A, tous les moyens électroniques sont à la masse tandis que dans la position C, tous les moyens électroniques sont alimentés mais le condensateur 36 n'est, dans tous les cas, connecté au circuit d'alimentation, qu'après un délai de sécurité généré par le dispositif électromécanique de sécurité 41 Dans une seconde variante de réalisation, les moyens de programmation sont constitués par un dispositif extérieur de programmation 100 et par des moyens de transfert d'informations, par contact direct telle une prise RS232 ou du type émission /réception, par exemple avec des photo-transistors Dans ce cas les moyens de fermeture du circuit sont, de préférence, constitués par un verrou mécanique 21 à trois positions A B et C, la position A dans laquelle tous les moyens électroniques sont à la masse, la position B dans laquelle le condensateur 36 est à la masse et les autres moyens électroniques sont alimentés, la position C qui suit la position B et dans laquelle le condensateur 36 est connecte au circuit après un délai de sécurité généré par le dispositif électromécanique de sécurité 41 Le dispositif extérieur 100 peut être constitué par un micro-ordinateur du type portable dans lequel un logiciel est introduit, ce logiciel permettant à l'utilisateur d'indiquer notamment le moment de la mise à feu soit sous la forme d'une date, nécessitant alors l'introduction de la date de programmation si elle n'existe pas déjà dans le micro-ordinateur, soit sous la forme d'une durée de retard. Après confirmation de la programmation par l'utilisateur, les données sont transmises, via une prise du type RS 232, à un ou plusieurs dispositifs d'amorçage simultanément. Ce dispositif extérieur 100 peut aussi être constitué par un ensemble comprenant une alimentation électrique 1 10, un micro-contrôleur 140, un afficheur 145, deux interrupteurs de programmation 146,147, et d'un interrupteur marche/arrêt 1 12, et les moyens de transfert comprennent des phototransistors, 148,149 associés à des phototransistors disposés dans le boîtier.In this embodiment, where the programming means consist of coding wheels 38, when the mechanical lock 21 is in position A, all of the electronic means are grounded while in position C, all of the electronic means are powered but the capacitor 36 is, in all cases, connected to the supply circuit, only after a safety delay generated by the electromechanical safety device 41. In a second variant embodiment, the programming means are constituted by a external programming device 100 and by information transfer means, by direct contact such as an RS232 socket or of the transmission / reception type, for example with photo-transistors In this case, the circuit closure means are preferably constituted by a mechanical lock 21 with three positions AB and C, position A in which all the electronic means are grounded, position B in which the capacitor 36 is grounded and the other electronic means are supplied, the position C which follows the position B and in which the capacitor 36 is connected to the circuit after a safety delay generated by the electromechanical safety device 41 The external device 100 may consist of a portable type microcomputer into which software is introduced, this software allowing the user to indicate in particular the time of ignition either in the form of a date, thus requiring the introduction of the programming date if it does not already exist in the microcomputer, either in the form of a delay time. After confirmation of the programming by the user, the data is transmitted, via an RS 232 type socket, to one or more ignition devices simultaneously. This external device 100 can also be constituted by an assembly comprising a power supply 110, a microcontroller 140, a display 145, two programming switches 146, 147, and an on / off switch 11, and the transfer means. include phototransistors, 148,149 associated with phototransistors arranged in the housing.
La sélection des paramètres est, dans ce cas, effectuée via un menu déroulant préprogrammé. L'affichage des données s'effectue par bloc et tous les paramètres liés à un bloc apparaissent les uns à coté des autres de sorte qu'une vue globale de l'évolution de chacun d'entre eux est maintenue en cours de programmation du bloc.In this case, the selection of parameters is made via a pre-programmed drop-down menu. The data is displayed by block and all the parameters linked to a block appear next to each other so that an overall view of the evolution of each of them is maintained during block programming. .
Il y a les quatre blocs suivants : DATE : correspondant à la date de la programmationThere are the following four blocks: DATE: corresponding to the date of programming
DIRECT : c'est la durée de la temporisation avant l'amorçage du détonateur. CALENDAIRE : c'est la date à laquelle l'amorçage doit avoir lieu. TRANSMISSION : la validation de ce bloc provoque le transfert des données programmées vers l'allumeur. Concernant les deux interrupteurs 146, 147, l'un a pour fonction de valider la proposition de donnée affichée et d'afficher la première donnée du paramètre suivant qui peut être du même bloc ou la première du bloc suivant.DIRECT: this is the duration of the time delay before the detonator is primed. CALENDAR: this is the date on which the priming must take place. TRANSMISSION: the validation of this block causes the transfer of the programmed data to the igniter. Regarding the two switches 146, 147, one has the function of validating the proposed data displayed and of displaying the first data of the following parameter which can be of the same block or the first of the following block.
De plus un module de piégeage 200 du type à ouverture de contact est ajouté aux moyens décrits dans la première variante de réalisation précédemment cités. Ce module est constitué par un circuit fermé, alimenté par les moyens d'alimentation précédemment décrits et comprenant un certain nombre de contacteurs dont le mode d'ouverture dépend du type de piégeage, et relié au micro- contrôleur 40. A titre d'exemple, ces contacteurs peuvent être à ouverture télécommandée à distance, ou inertielle, ou plus simplement un fil de trébuchement reposant sur le sol dans l'environnement de l'allumeur.In addition, a trapping module 200 of the contact opening type is added to the means described in the first embodiment previously mentioned. This module consists of a closed circuit, supplied by the supply means described above and comprising a certain number of contactors, the opening mode of which depends on the type of trapping, and connected to the microcontroller 40. By way of example , these contactors can be with remote-controlled opening, or inertial, or more simply a trip wire resting on the ground in the environment of the igniter.
Le fonctionnement d'un dispositif selon l'invention, dont la programmation est réalisée par un dispositif extérieur 100, est le suivant :The operation of a device according to the invention, the programming of which is carried out by an external device 100, is as follows:
Les piles sont placées dans le boîtier avant son utilisation et le verrou mécanique 21 est en position A, les moyens 20 et 30 n'étant donc pas électriquement alimenté.The batteries are placed in the housing before use and the mechanical lock 21 is in position A, the means 20 and 30 therefore not being electrically supplied.
L'utilisateur dégage ensuite la clé 22 du rétreint du boîtier puis procède à une rotation de cette dernière jusqu'à la position B dans laquelle le condensateur 36 est à la masse et les autres moyens électroniques sont alimentés. Le circuit de réception comporte deux phototransistors 48,49 placés au plus prêt d'une partie du boîtier qui est transparente au rayonnement émis par les phototraπsistors 148, 149 du dispositif 100 En outre, le boîtier comporte une encoche permettant un positionnement précis des phototransistors, respectivement des moyens de programmation 100 et des moyens de mise à feu, les uns en face des autresThe user then releases the key 22 from the constriction of the housing and then proceeds to rotate the latter to position B in which the capacitor 36 is grounded and the other electronic means are supplied. The circuit of reception comprises two phototransistors 48,49 placed as close as possible to a part of the housing which is transparent to the radiation emitted by the phototraπsistors 148, 149 of the device 100 In addition, the housing includes a notch allowing precise positioning of the phototransistors, respectively means programming 100 and firing means, facing each other
Après fermeture de l'interrupteur marche/arrêt, le micro-contrôleur de l'ensemble 100 commande le déroulement d'un menu qui s'inscrit par bloc sur l'afficheur 145, le passage au paramètre suivant d'un même bloc ou au bloc suivant s'effectuant par action sur l'un des interrupteurs de programmation 146, 147, l'autre servant à la validation des paramètres et à leur transmission vers le dispositif deAfter closing the on / off switch, the microcontroller of the assembly 100 controls the progress of a menu which is written by block on the display 145, the passage to the next parameter of the same block or to the next block being effected by action on one of the programming switches 146, 147, the other serving for the validation of the parameters and their transmission to the device for
Le menu peut, par exemple, comporter deux blocs, l'un concernant la durée D1 souhaitée de temporisation sous un format jour/heure/minute/seconde, soit quatre paramètres, et l'autre relatif à la validation de ces paramètres et à la transmission de ces paramètres via les phototraπsistors 148, 149, 48,49The menu can, for example, comprise two blocks, one relating to the desired duration D1 of delay in a format day / hour / minute / second, that is to say four parameters, and the other relating to the validation of these parameters and to the transmission of these parameters via phototraπsistors 148, 149, 48,49
Lorsque tous les paramètres sont validés, la validation du bloc TRANSMISSION provoque le transfert de ces paramètres du dispositif 100 au dispositif d'amorçage En retour, le micro-contrôleur 40 renvoie une copie des paramètres reçus par le dispositif 100 qui vérifie leur conformité avec ceux émis précédemment et délivre un accusé réception libérant la transmissionWhen all the parameters are validated, the validation of the TRANSMISSION block causes the transfer of these parameters from the device 100 to the priming device. In return, the microcontroller 40 returns a copy of the parameters received by the device 100 which verifies their conformity with those previously issued and issues an acknowledgment releasing the transmission
On voit que lorsque le moment de l'amorçage est choisi en mode calendaire, il est possible de transmettre les mêmes paramètres successivement ou simultanément, à une pluralité de dispositifs d'amorçage et donc de synchroniser tous les amorçages L'utilisation d'un micro-ordinateur rend cette opération de synchronisation encore plus aisée En effet, il suffit de connecter le micro-ordinateur à chacune des prises du type RS232 des différents dispositifs d'amorçage à synchroniser puis de transférer simultanément les paramètres à tous ces dispositifsIt can be seen that when the moment of priming is chosen in calendar mode, it is possible to transmit the same parameters successively or simultaneously, to a plurality of priming devices and therefore to synchronize all primings. The use of a microphone -computer makes this synchronization operation even easier Indeed, it suffices to connect the microcomputer to each of the sockets of the RS232 type of the various boot devices to be synchronized and then to simultaneously transfer the parameters to all these devices
Les moyens de mise à feu sont ensuite positionnés sur un engin explosif adéquat Dans le cas d'une mine, elle peut être positionnée sur l'objectif à détruire, par l'utilisateur qui, ensuite, procède à la rotation de la clé 22 jusqu'en position C puis à son retrait du boîtier afin d'empêcher tout accès, par une personne non habilitée, au verrou 21The firing means are then positioned on a suitable explosive device. In the case of a mine, it can be positioned on the objective to be destroyed, by the user, who then proceeds to rotate the key 22 up to '' in position C then when it is removed from the housing in order to prevent any access, by an unauthorized person, to lock 21
Dans cette position, le décomptage de la durée de temporisation D1 , entamé lors de la libération de la transmission, se poursuit, tandis que l'horloge mécanique de temporisation des moyens électromécaniques de sécurité est déclenchée. A l'expiration d'un temps Tp1 préprogrammé de fonctionnement de cette horloge, elle produit le basculement de l'inverseur mécanique 41 et donc la fermeture de la partie du circuit située entre le transistor 50 et le condensateur 36In this position, the countdown of the delay time D1, started when the transmission is released, continues, while the mechanical timer clock of the electromechanical safety means is triggered. At the expiration of a preprogrammed Tp1 operating time this clock, it produces the tilting of the mechanical inverter 41 and therefore the closing of the part of the circuit located between the transistor 50 and the capacitor 36
Aussi, dans tous les cas où la durée D1 de la temporisation programmée par l'utilisateur est inférieure au temps préprogrammé Tp1 ou en cas de défaillance du micro-contrôleur 40 ou des transistors 50, 55, 60, la mise à feu ne pourra éventuellement survenir, dans tous les cas, qu'après l'expiration de ce temps Tp1Also, in all cases where the duration D1 of the timer programmed by the user is less than the preprogrammed time Tp1 or in the event of failure of the microcontroller 40 or of the transistors 50, 55, 60, the firing may not possibly occur, in any case, only after the expiration of this time Tp1
A l'issue du décomptage de la valeur D1 , le micro-contrôleur 40 désactive le transistor 60 de court circuit, et active le transistor 50 qui devient alors passant Le condensateur 36 se charge alors et à l'issue d'un temps preprogrammé Tp2, appelé temps de charge du condensateur, le micro-contrôleur 40 active le transistor 55 qui devient passant permettant alors la décharge du condensateur 36 au travers de ce transistor 55 et de la résistance d'amorçage 12, l'intensité 12 circulant dans cette dernière étant suffisante pour provoquer l'amorçage du détonateurAt the end of the countdown of the value D1, the microcontroller 40 deactivates the short-circuit transistor 60, and activates the transistor 50 which then turns on. The capacitor 36 then charges and at the end of a preprogrammed time Tp2 , called the charging time of the capacitor, the microcontroller 40 activates the transistor 55 which becomes on, then allowing the discharge of the capacitor 36 through this transistor 55 and the starting resistor 12, the intensity 12 flowing in the latter being sufficient to trigger the detonator
La mise en charge du condensateur qu'à l'expiration d'une période de temporisation permet d'accroître la fiabilité du dispositif puisque aucun courant de fuite du condensateur n'intervient pendant cette périodeCharging the capacitor only at the end of a delay period increases the reliability of the device since no leakage current from the capacitor occurs during this period.
Il est a noter par ailleurs que pour des questions de sécurité, il est préférable que le temps de charge Tp2 du condensateur soit long par rapport à son temps de décharge Ainsi, les dysfonctionnements qui se traduiraient par des commandes simultanées de tous les transducteurs (cas des effets EMP et nucléaires) n'auraient aucune conséquenceIt should also be noted that for safety reasons, it is preferable that the charge time Tp2 of the capacitor be long compared to its discharge time. Thus, the malfunctions which would result in simultaneous commands from all the transducers (case EMP and nuclear effects) would have no consequences
De plus, le processus de charge du condensateur peut atteindre, à lui seul, une exigence de sûreté non dégradable Le temps de sûreté est alors celui qui est juste inférieur au temps qui entraîne une charge significative du condensateur, c'est- a-dire apte à provoquer la mise à feu de l'amorce lors de sa décharge II est réglable par le courant de charge Dans ce cas, un dispositif électromécanique de sécurité 41 n'est pas nécessaire, et ce, que la charge du condensateur s'effectue à la mise sous tension ou avant la mise à feu Toutefois, dans les applications où le temps de sûreté est très long, et/ou lorsque le module de piégeage est utilisé, l'utilisation du dispositif électromécanique de sécurité 41 est requisIn addition, the capacitor charging process can reach, on its own, a non-degradable safety requirement. The safety time is then that which is just less than the time which results in a significant charge of the capacitor, i.e. suitable for causing the ignition of the primer during its discharge II is adjustable by the charging current In this case, an electromechanical safety device 41 is not necessary, and this, that the charging of the capacitor is carried out at power up or before firing However, in applications where the safety time is very long, and / or when the trapping module is used, the use of the electromechanical safety device 41 is required
Notamment dans le cas où les moyens 32 de programmation sont constitués par des roues codeuses 38 et par le micro-contrôleur 40, l'interrupteur à fermeture tempoπsée 65 peut être inséré dans le circuit de façon à générer un délai de sécurité Tp3 supplémentaire avant toute mise à feu lorsque l'utilisateur tourne la clé de la position A à la position C Ce délai est, dans cette variante de réalisation, un délai de sécurité opérationnelle , durant ce délai, qui fait partie intégrante de la durée D1 , toutes les fonctions de commutation des transistors 50, 60, 55, du micro- contrôleur 40 sont inhibées Parallèlement, l'horloge mécanique de temporisation des moyens électromécaniques de sécurité 41 est déclenchée. A l'expiration d'un temps Tp1 préprogrammé de fonctionnement de cette horloge, elle produit le basculement de l'inverseur mécanique qui lui est associé et donc la fermeture de la partie du circuit située entre le transistor 50 et le condensateur 36.In particular in the case where the programming means 32 are constituted by coding wheels 38 and by the microcontroller 40, the temporally closed switch 65 can be inserted in the circuit so as to generate an additional safety delay Tp3 before any firing when the user turns the key from position A to position C This delay is, in this variant embodiment, an operational safety delay, during this delay, which is an integral part of the duration D1, all functions switching of the transistors 50, 60, 55, of the microcontroller 40 are inhibited At the same time, the mechanical timer clock for electromechanical safety means 41 is triggered. At the expiration of a preprogrammed time Tp1 for operating this clock, it produces the tilting of the mechanical inverter associated with it and therefore the closing of the part of the circuit located between the transistor 50 and the capacitor 36.
L'interrupteur 65 et l'horloge constituent donc deux éléments de sécurité déclenchés simultanément et de nature différente, l'un électrique agit sur le micro- contrôleur 40 et l'autre, mécanique, agit sur le condensateur 36, l'amorçage du détonateur ne pouvant s'effectuer avant la valeur la plus élevée des temps Tp1 et Tp3.The switch 65 and the clock therefore constitute two safety elements triggered simultaneously and of a different nature, one electrical acts on the microcontroller 40 and the other, mechanical, acts on the capacitor 36, the initiation of the detonator. cannot be performed before the highest value of times Tp1 and Tp3.
Un autre mode de fonctionnement du dispositif précédemment décrit consiste à autoriser la mise à feu de l'amorce 13 via le module de piégeage 200 à l'expiration du plus long des délais Tp1 et Tp3, et ce, pendant toute la durée de temporisation programmée, et, le cas échéant, à inhiber les transistors 50 et 55 à l'échéance de cette temporisation, rendant ainsi le dispositif inerte et récupérable. Le temps de réaction entre l'actionnement du piégeage et la mise à feu de l'amorce est, dans ce cas, égal à Tp2.Another mode of operation of the previously described device consists in authorizing the firing of the primer 13 via the trapping module 200 at the expiration of the longest of the delays Tp1 and Tp3, and this, throughout the programmed delay time. , and, if necessary, to inhibit the transistors 50 and 55 at the end of this time delay, thus making the device inert and recoverable. The reaction time between actuating the trapping and igniting the primer is, in this case, equal to Tp2.
Selon une variante de réalisation de l'invention, les moyens de temporisation peuvent être simplifiés comme présentés sur la figure 5. Le dispositif d'amorçage comprend alors une alimentation électrique 310, en l'occurrence des piles, un relais à ouverture temporisée 330, un relais à fermeture temporisée 335, un condensateur 336 et une résistance d'amorçage 12 de l'amorce 13.According to an alternative embodiment of the invention, the timing means can be simplified as shown in FIG. 5. The priming device then comprises an electrical supply 310, in this case batteries, a timed opening relay 330, a time-delayed relay 335, a capacitor 336 and a starting resistor 12 of the primer 13.
Dès l'introduction des piles, les deux relais sont excités. Le relais 330 étant tout d'abord fermé, le condensateur se charge. Ce relais 330 s'ouvre après un temps Tp4, puis le relais 335 se ferme et le condensateur 336 se décharge alors dans la résistance 12, provoquant la mise à feu de l'amorce 13.As soon as the batteries are inserted, the two relays are energized. The relay 330 being first of all closed, the capacitor charges. This relay 330 opens after a time Tp4, then the relay 335 closes and the capacitor 336 then discharges into the resistor 12, causing the ignition of the primer 13.
Dans le cas d'un amorçage par déplacement d'une pièce mécanique, la décharge du condensateur alimente un solénoïde dont l'activation provoque le déblocage de la pièce électromécanique qui amorce le détonateur. Pour ce qui est des moyens de piégeage, la rupture accidentelle du fil de trébuchement ou l'ouverture d'un contacteur iπertiel lorsque le dispositif d'amorçage est déplacé, provoquent l'amorçage du détonateur. Toutefois, pour des questions de sécurité, l'amorçage ne peut avoir lieu avant l'expiration des temps Tp1 de sécurité intrinsèque et Tp3 de sécurité opérationnelle engendrés par les moyens électromécaniques et/ou l'interrupteur temporisé 65. In the case of priming by moving a mechanical part, the discharge of the capacitor feeds a solenoid whose activation causes the unlocking of the electromechanical part which initiates the detonator. With regard to the trapping means, the accidental breaking of the tripping wire or the opening of an inertial contactor when the ignition device is moved, cause the detonator to fire. However, for safety reasons, the priming cannot take place before the expiration of the times Tp1 of intrinsic safety and Tp3 of operational safety generated by the electromechanical means and / or the timed switch 65.

Claims

REVENDICATIONS
1. Dispositif d'amorçage d'un détonateur comportant une alimentation électrique fournissant une première intensité (11 ), à un circuit comportant des moyens (30) de temporisation de l'action d'un élément (12) de mise à feu d'une amorce (13) et à des moyens (35) aptes à générer, à l'expiration de la durée de temporisation, une deuxième intensité (12) suffisante pour actionner ledit élément (12), la première (11 ) issue de l'alimentation, ne l'étant pas.1. Device for initiating a detonator comprising an electrical supply supplying a first intensity (11), to a circuit comprising means (30) for delaying the action of a firing element (12) a primer (13) and means (35) capable of generating, at the expiration of the delay time, a second intensity (12) sufficient to actuate said element (12), the first (11) coming from the food, not being.
2. Dispositif selon la revendication 1 , caractérisé en ce que les moyens (35) sont constitués par un condensateur (36), des moyens de commutation (41 , 50, 55), et des moyens de commande de ces moyens de commutation permettant de charger ce condensateur (36) pendant un temps de charge (Tp2), puis de le décharger, ce déchargement provoquant l'action de I' élément (12) sur l'amorce (13).2. Device according to claim 1, characterized in that the means (35) consist of a capacitor (36), switching means (41, 50, 55), and control means of these switching means making it possible to charge this capacitor (36) during a charging time (Tp2), then discharge it, this discharging causing the action of the element (12) on the primer (13).
3. Dispositif d'amorçage d'un détonateur comportant une alimentation électrique des moyens (30) de temporisation de l'action d'un élément (12) de mise à feu d'une amorce (13), et des moyens (35) aptes à générer, à l'expiration de. la durée de temporisation, une intensité suffisante pour actionner ledit élément (12), ces moyens (35) comportant un condensateur (36), des moyens de commutation (41 , 50, 55), et des moyens de commande de ces moyens de commutation permettant de charger ce condensateur (36) pendant un temps de charge (Tp2), puis de le décharger, ce déchargement provoquant l'action de l'élément (12) sur l'amorce (13), les moyens de commande étant constitués par un micro-contrôleur (40).3. Device for initiating a detonator comprising an electrical supply of the means (30) for delaying the action of an element (12) for igniting a primer (13), and means (35) able to generate, at the expiration of. the delay time, an intensity sufficient to actuate said element (12), these means (35) comprising a capacitor (36), switching means (41, 50, 55), and means for controlling these switching means allowing to charge this capacitor (36) during a charging time (Tp2), then to discharge it, this discharging causing the action of the element (12) on the primer (13), the control means being constituted by a microcontroller (40).
4. Dispositif selon l'une quelconque des revendications 2 et 3, caractérisé en ce que les moyens de commutation sont constitués par des transistors (50,55).4. Device according to any one of claims 2 and 3, characterized in that the switching means are constituted by transistors (50,55).
5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les moyens de temporisations comportent des moyens (32) de programmation de la durée de temporisation.5. Device according to any one of claims 1 to 4, characterized in that the delay means comprise means (32) for programming the delay time.
6. Dispositif selon la revendication 5, caractérisé en ce que ces moyens de programmation (32) comportent au moins une roue codeuse (38) électriquement reliée au micro-contrôleur (40). 6. Device according to claim 5, characterized in that these programming means (32) comprise at least one coding wheel (38) electrically connected to the microcontroller (40).
7. Dispositif selon la revendication 6, caractérisé en ce que la roue codeuse (38) est luminescente.7. Device according to claim 6, characterized in that the coding wheel (38) is luminescent.
8. Dispositif selon la revendication 5, caractérisé en ce que ces moyens de programmation comportent des moyens extérieurs de programmation (100) ainsi que des moyens de transfert (101 ) des données programmées depuis ces moyens extérieurs jusqu'au micro-contrôleur (40).8. Device according to claim 5, characterized in that these programming means comprise external programming means (100) as well as transfer means (101) of the programmed data from these external means to the microcontroller (40) .
9. Dispositif selon la revendication 8, caractérisé en ce que les moyens extérieurs comportent une alimentation électrique(110), un micro-contrôleur (140), un afficheur (145), deux interrupteurs (146,147) de programmation et en ce que les moyens de transfert sont constitués par des phototransistors (48,49, 148,149).9. Device according to claim 8, characterized in that the external means comprise an electrical supply (110), a microcontroller (140), a display (145), two switches (146,147) for programming and in that the means transfer devices are formed by phototransistors (48,49, 148,149).
10. Dispositif selon la revendication 8, caractérisé en ce que les moyens extérieurs de programmation (100) sont constitués par un micro-ordinateur et en ce que les moyens de transfert d'informations (101 ) comportent une prise de connexion électrique reliée au micro-contrôleur (40).10. Device according to claim 8, characterized in that the external programming means (100) consist of a microcomputer and in that the information transfer means (101) comprise an electrical connection socket connected to the microphone -controller (40).
11 Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte des moyens (41 ) mécaniques de temporisation.11 Device according to any one of the preceding claims, characterized in that it comprises mechanical time delay means (41).
12 Dispositif selon l'une quelconque des revendications 4 à 11 , caractérisé en ce qu'il comporte des moyens (200) de piégeages ou d'anticipation volontaire de la mise à feu de l'amorce (13).12 Device according to any one of claims 4 to 11, characterized in that it comprises means (200) of trapping or voluntary anticipation of the firing of the primer (13).
13 Dispositif selon la revendication précédente, caractérisé en ce que ces moyens de piégeage comportent un fil de trébuchement relié au micro-contrôleur (40). 13 Device according to the preceding claim, characterized in that these trapping means comprise a trip wire connected to the microcontroller (40).
EP96943151A 1995-12-21 1996-12-20 Time-programmable priming device Expired - Lifetime EP0880669B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9515229 1994-12-19
FR9515229A FR2742859B1 (en) 1995-12-21 1995-12-21 PROGRAMMABLE TIME PRIMING DEVICE
PCT/FR1996/002035 WO1997023761A1 (en) 1995-12-21 1996-12-20 Time-programmable priming device

Publications (2)

Publication Number Publication Date
EP0880669A1 true EP0880669A1 (en) 1998-12-02
EP0880669B1 EP0880669B1 (en) 1999-11-03

Family

ID=9485775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96943151A Expired - Lifetime EP0880669B1 (en) 1995-12-21 1996-12-20 Time-programmable priming device

Country Status (8)

Country Link
EP (1) EP0880669B1 (en)
AT (1) ATE186392T1 (en)
CA (1) CA2241810A1 (en)
DE (1) DE69605060T2 (en)
ES (1) ES2140917T3 (en)
FR (1) FR2742859B1 (en)
NO (1) NO983732L (en)
WO (1) WO1997023761A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2787568B1 (en) 1998-12-16 2001-02-02 France Etat DEVICE FOR FIREING A PRIMER
DE10139810B4 (en) * 2000-11-09 2014-10-16 Orica Explosives Technology Pty. Ltd. Voltage sensor for monitoring electronic ignition circuits
FR2934288B1 (en) 2008-07-24 2014-02-14 Weber & Broutin Sa ACOUSTIC IMPROVEMENT DEVICE FOR COATING UNDERCOAT.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2673464B1 (en) * 1980-06-20 1994-02-04 Etat Francais Delegue Armement PROGRAMMABLE DELAY ROCKET AND APPLICATION METHOD.
EP0093804B1 (en) * 1982-05-12 1986-09-10 "s.a. PRB", Société anonyme Electronic circuit for the ignition of a detonator
US4712477A (en) * 1985-06-10 1987-12-15 Asahi Kasei Kogyo Kabushiki Kaisha Electronic delay detonator
US4860653A (en) * 1985-06-28 1989-08-29 D. J. Moorhouse Detonator actuator
DE4240263C1 (en) * 1992-12-01 1993-12-23 Honeywell Ag Programmable igniter for projectile - is programmable and provided with voltage during programming phase by rectifying inductively transmitted programme information

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9723761A1 *

Also Published As

Publication number Publication date
DE69605060T2 (en) 2000-02-24
DE69605060D1 (en) 1999-12-09
WO1997023761A1 (en) 1997-07-03
ES2140917T3 (en) 2000-03-01
EP0880669B1 (en) 1999-11-03
FR2742859A1 (en) 1997-06-27
CA2241810A1 (en) 1997-07-03
NO983732L (en) 1998-08-18
ATE186392T1 (en) 1999-11-15
NO983732D0 (en) 1998-08-14
FR2742859B1 (en) 1998-02-20

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