FR2564686A1

FR2564686A1 - Method for protecting and hardening electrical and/or electronic components or appliances against the electric fields created especially by nuclear explosions

Info

Publication number: FR2564686A1
Application number: FR8407924A
Authority: FR
Original assignee: Individual
Current assignee: Individual
Priority date: 1984-05-18
Filing date: 1984-05-18
Publication date: 1985-11-22
Also published as: FR2564686B1

Abstract

Method for protecting and hardening electrical and/or electronic components or appliances. The equipment 1 to be protected is encased by at least two steel sheets 2, 3, the said steel sheets being insulated between them; the two steel sheets 2, 3 are insulated from each other by an insulator 4 and disposed continuously or discontinuously. The invention applies to electronic control appliances to be protected from nuclear explosions.

Description

Actuellement, la plupart des appareils ou composants électriques et/ou électroniques n'est pas protégée ou mal protégée contre les champs électriques ou magnétiques créées notamment par des explosions nucléaires. Currently, most electrical and / or electronic devices or components are not protected or poorly protected against electric or magnetic fields created in particular by nuclear explosions.

Pour protéger ce matériel, on utilise actuellement le blindage, c'est-à-dire que l'on entoure d'un écran protecteur les appareils. Cet écran peut être en plomb ou en acier et son épaisseur est la plus large possible. Ces moyens ne peuvent pas toujours être utilisés car la place pour disposer un tel écran ou blindage peut faire défaut et de plus, le poids de l'écran ou du blindage peut être un grand inconvénient pour des appareils disposés dans des installations qui doivent être mobiles. To protect this material, shielding is currently used, that is to say that the devices are surrounded by a protective screen. This screen can be made of lead or steel and its thickness is as wide as possible. These means cannot always be used because the space for having such a screen or shielding may be lacking and, moreover, the weight of the screen or of the shielding may be a great disadvantage for devices placed in installations which must be mobile. .

On utilise actuellement un autre moyen de protection qui est l'acier à cristaux orientés. Ce moyen de protection est utilisé notamment pour les tubes à oscilloscopes. L'inconvénient de ce moyen de protection est son coût élevé. Ce moyen de protection ne peut donc être utilisé pour de grandes surfaces et en grande quantité. Another means of protection is currently used, which is oriented crystal steel. This means of protection is used in particular for oscilloscope tubes. The disadvantage of this means of protection is its high cost. This means of protection cannot therefore be used for large areas and in large quantities.

L'inventeur a donc réalisé un procédé et un dispositif qui évite tous les inconvénients cités dans l'état de la technique ci-dessus énoncé et# qui peut être aisément utilisé sur tout le matériel déjà en place et qui doit être protégé. The inventor has therefore produced a method and a device which avoids all the drawbacks mentioned in the prior art stated above and # which can be easily used on all the equipment already in place and which must be protected.

Le procédé selon l'invention consiste à protéger et à isoler tout matériel électrique ou électronique notamment de commande. A cet effet, le matériel à protéger est enveloppé d'au moins deux feuilles d'acier isolées l'une de l'autre. Les deux feuilles d'acier, isolées l'une de l'autre, peuvent être séparées par un isolant qui est disposé entre-elles de manière continue ou discontinue. Au niveau des touches de commande, la protection de ces parties mobiles est assurée par des gaines souples en acier qui sont également isolées l'une de l'autre. The method according to the invention consists in protecting and isolating any electrical or electronic equipment, in particular control equipment. To this end, the material to be protected is wrapped in at least two sheets of steel insulated from each other. The two sheets of steel, isolated from each other, can be separated by an insulator which is arranged between them continuously or discontinuously. At the level of the control keys, the protection of these moving parts is ensured by flexible steel sheaths which are also isolated from one another.

Le dessin ci-joint donné à titre d'exemple indicatif et non limitatif permettra aisément de comprendre l'invention, il représente un mode de réalisation préféré selon l'invention. The attached drawing given by way of indicative and nonlimiting example will easily make it possible to understand the invention, it represents a preferred embodiment according to the invention.

Le matériel électrique, électronique et ses composants sont enveloppés d'au moins deux feuilles d'acier 1 et 2 qui sont impérativement isolées l'une de l'autre. The electrical, electronic equipment and its components are wrapped in at least two sheets of steel 1 and 2 which are imperatively insulated from each other.

Dans la figure unique, le matériel électrique ou électronique notamment de commande est un clavier étanche magnétiquement 1 ; il est enveloppé par au moins deux feuilles d'acier 2 et 3. Ces deux feuilles d'acier 2 et 3 sont isolées l'une de l'autre. Un isolant 4 peut être disposé entre les deux feuilles d'acier 2, 3. L'isolant peut être disposé de manière continue ou discontinue. In the single figure, the electrical or electronic equipment in particular for controlling is a magnetically sealed keyboard 1; it is surrounded by at least two steel sheets 2 and 3. These two steel sheets 2 and 3 are isolated from one another. An insulator 4 can be placed between the two steel sheets 2, 3. The insulator can be arranged continuously or discontinuously.

Les feuilles d'acier 2,3 peuvent avoir, par exemple, une épaisseur d' un millimètre et demi. Elles peuvent être isolées l'une de l'autre par un isolant 4. Les deux feuilles d'acier 2,3 peuvent être séparées l'une de l'autre par une distance 5 qui est égale à au moins l'épaisseur de chaque feuille d'acier 2,3. The steel sheets 2,3 may have, for example, a thickness of one and a half millimeters. They can be isolated from each other by an insulator 4. The two steel sheets 2,3 can be separated from each other by a distance 5 which is equal to at least the thickness of each steel sheet 2.3.

L'isolant 4, dans un mode de réalisation préféré, peut être un produit qui fait office à la fois de colle et d'isolant. Ainsi, cela peut être de l'Araldite (marque déposée.)
S'il s'agit, par exemple, d'un clavier 7, la touche de commande 6 passe dans un orifice 8 formé à travers les deux feuilles d'acier isolées 2,3.The insulator 4, in a preferred embodiment, can be a product which acts as both glue and insulator. So it can be Araldite (registered trademark.)
If it is, for example, a keyboard 7, the control key 6 passes through an orifice 8 formed through the two insulated steel sheets 2,3.

Pour assurer l'isolation à ce niveau, l'axe 9 de la touche de commande 6 passe à travers deux gaines souples 10 et 11 en acier, isolées entre elles, l'extrémité 12 de l'axe 9 de la touche de commande 6 vient actionner le contact 13. Une butée 14 est prévue sur l'axe 9 pour l'empêcher de sortir de l'orifice 8. De même, l'extrémité inférieure de chaque gaine souple 10 ou -11 en acier se termine par un fond en acier 19 ou 20. To ensure insulation at this level, the axis 9 of the control button 6 passes through two flexible sheaths 10 and 11 made of steel, isolated from each other, the end 12 of the axis 9 of the control button 6 actuates the contact 13. A stop 14 is provided on the axis 9 to prevent it from leaving the orifice 8. Similarly, the lower end of each flexible sheath 10 or -11 made of steel ends in a bottom steel 19 or 20.

Au-dessus des feuilles d'acier 2,3, peut être disposé, vers l'extérieur, un autre circuit, par exemple un circuit imprimé 15, qui alimente les voyants 17. L'ensemble de ce circuit imprimé 15 d'alimentation des voyants n'est pas protégé magnétiquement, puisqu'il est devant les feuilles d'acier isolées entre elles 2 et 3 seul un verre de sécurité en matière plastique transparente 18 (tel que du polyméthacrylate) protège ce circuit imprimé 15. Above the steel sheets 2, 3, another circuit can be arranged towards the outside, for example a printed circuit 15, which supplies the indicator lights 17. The whole of this printed circuit 15 for supplying indicator lights is not magnetically protected, since it is in front of the insulated steel sheets 2 and 3 only a safety glass made of transparent plastic material 18 (such as polymethacrylate) protects this printed circuit 15.

Claims

1. Method for protecting devices, electrical and / or electronic components against electric or magnetic fields, characterized in that the material (1) to be protected is wrapped with at least two sheets of steel (2,3 ), said steel sheets being insulated from each other.

2. A method of protecting devices, electrical and / or electronic components against electric or magnetic fields according to claim 1 characterized in that the two steel sheets (2,3) are isolated from one of the other by an insulator (4) arranged continuously or discontinuously.

3. A method of protecting devices, electrical and / or electronic components against electric or magnetic fields according to any one of claims 1 or 2 characterized in that the insulator (4) has an insulating function and glue.

4. A method of protecting devices, electrical and / or electronic components against electric or magnetic fields according to any one of claims 1, 2 or 3 characterized in that at the control keys (6), the axis (9) of these passes through orifices (8) made in the steel sheets (2,3) and that the continuity of the insulation is ensured, at this level, by flexible steel sheaths (10,11) isolated from each other.

5, Device for implementing the method according to any one of claims 1, 2, 3 or 4 characterized in that the material to be insulated (1) comprises an envelope which consists of at least two sheets of steel (2,3), said steel sheets are insulated from each other by an insulator (4).

6. Device for protecting electrical and / or electronic devices or components against electric or magnetic fields created in particular by nuclear explosions according to claim 5, characterized in that the two steel sheets (2,3) are separated from each other by a distance (5) which is equal to at least the thickness of each sheet of steel (2,3).

7. Device for protecting # electrical or electronic devices or components against electric or magnetic fields created in particular by nuclear explosions according to any one of claims 5 or 6 characterized in that the insulator (4) is a product that acts as both glue and insulation.

8. Device for protecting electrical and / or electronic devices or components against electric or magnetic fields created in particular by nuclear explosions according to any one of claims 5, 6 or 7 characterized in that the control key ( 6) passes through an orifice (8> formed through the two insulated steel sheets (2,3); to ensure insulation at this level, the axis (9) of the control keys (6) passes to through two flexible sheaths (10 and 11) of steel insulated from each other, the end (12) of the axis (9) of the control button (6) actuates the contact (13); a stop (14) is provided on the axis (9) to prevent it from leaving the orifice (8); likewise, the lower end of each flexible steel sheath (10 or 11) ends in a steel bottom (19 or 20).

9. Device for protecting electrical and / or electronic devices or components against electric or magnetic fields created in particular by nuclear explosions according to any one of claims 5, 6, 7 or 8 characterized in that above of each steel sheet (2,3) can be arranged outwards; another printed circuit (15), which supplies the indicator lights (17); the whole of this printed circuit (15) for supplying the indicator lights is not magnetically protected, since it is in front of the steel sheets isolated between them (2 and 3), only a safety glass made of transparent plastic (18) protects this printed circuit (15).