FR2739743A1

FR2739743A1 - Environmental proof container for diesel engine control/command unit

Info

Publication number: FR2739743A1
Application number: FR9512062A
Authority: FR
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-10-09
Filing date: 1995-10-09
Publication date: 1997-04-11

Abstract

The container (1) is made up of two parallel hollow sections (2,3). The first section fits over the top of the diesel fuel injection mechanism. The second section covers the control and command unit, operating the fuel injection. The second section has outer metal foot protrusions (4) which securely fasten the unit so that it cannot be forcefully detached. The cover is robust and proof against electromagnetic field radiation.

Description

BOITIER DE PROTECTION ET DE GESTION A DISTANCE OU NON
La présente invention concerne un boîtier de protection (fig 1) blindé, destiné à protéger et à piloter, éventuellement à distance, un organe électrique de commande moteur ou autre, notamment une électrovanne d'alimentation en carburant d'un moteur ou autre, défini de telle sorte que l'organe électrique concerné se retrouve, après mise en place du boîtier, protégé mécaniquement, grâce à une forme spécifique, par le dit boîtier tout en disposant à l'intérieur même de ce boîtier blindé des moyens électroniques de commande et de contrôle électrique de l'organe électrique concerné. Ces moyens de commandes peuvent être mécaniques, électroniques ou autre installés en direct sur le boîtier ou commandés à distance.PROTECTION AND REMOTE MANAGEMENT HOUSING OR NOT
The present invention relates to a shielded protective housing (fig 1), intended to protect and control, possibly remotely, an electrical engine control member or the like, in particular a solenoid valve for fueling an engine or the like, defined so that the electrical component concerned is found, after installation of the housing, mechanically protected, by a specific shape, by the said housing while having inside the same armored housing electronic control means and electrical control of the electrical component concerned. These control means can be mechanical, electronic or other installed directly on the housing or remotely controlled.

La fig 1 est une vue perspective vue du dessous d'un type de boîtier 1. FIG. 1 is a perspective view seen from below of a type of case 1.

La fig 2 est une coupe transversale horizontale. Fig 2 is a horizontal cross section.

La fig 3 est une vue de face du boîtier 1. FIG. 3 is a front view of the housing 1.

La fig 4 est une coupe transversale présentant une électrovanne 11 en position verrouillée. Fig 4 is a cross section showing a solenoid valve 11 in the locked position.

La fig 5 est une coupe verticale au niveau du logement dans l'axe central. Fig 5 is a vertical section through the housing in the central axis.

Selon les modes de réalisation différentes formes de boîtier peuvent convenir à un organe donné. Un exemple particulier d'application pourrait être une électrovanne 11 de commande de pompe à injection de moteur diesel. According to the embodiments, different forms of housing may be suitable for a given member. A particular example of application could be a solenoid valve 11 for controlling a diesel engine injection pump.

Dans ce cas, le boîtier 1 est blindé et composé de deux logements contigus 2 et 3 qui communiquent de façon à assurer une liaison électrique entre eux. In this case, the housing 1 is shielded and composed of two contiguous housings 2 and 3 which communicate so as to ensure an electrical connection between them.

- le logement 2 est quasi cylindrique et est destiné à recevoir l'electrovanne de la pompe à injection. ll est équipé sur une ou plusieurs de ses faces de pattes métalliques 4 semiindépendantes. Ces pattes métalliques sont elles-mêmes équipées d'ergots de verrouillage 5 destinés à bloquer le boîtier sous un appendice de l'electrovanne par exemple le six pans de serrage de celle-ci 6 rendant ainsi le boîtier inextractible. - the housing 2 is almost cylindrical and is intended to receive the solenoid valve of the injection pump. It is fitted on one or more of its faces with semi-independent metal legs 4. These metal tabs are themselves equipped with locking lugs 5 intended to block the housing under an appendage of the solenoid valve, for example the hexagon for tightening the latter 6 thus making the housing inextractable.

- le logement 3 de forme plus géométrique est destiné à recevoir le circuit électronique et de transmission d'information de commandes ou autres. Il peut être éventuellement rempli de résine après fermeture par une cloison qui coulisse dans la rainure 7 pour isoler les logements 2 et 3. La rainure 8 servant éventuellement au guidage du circuit électronique. La patte métallique 4 est également blindée et élastique permettant ainsi l'enfoncement élastique du boîtier et son clipsage en fin de course sous l'épaulement du six pans 6 par exemple, par effet ressort et clipsage de l'ergot 5 sous le six pans 6 après l'enfoncement total du boîtier par exemple. Le boîtier devient ainsi indémontable, grâce à l'ergot 5 qui sert de verrou. - The housing 3 of more geometric shape is intended to receive the electronic circuit and transmission of command or other information. It can optionally be filled with resin after closing by a partition which slides in the groove 7 to isolate the housings 2 and 3. The groove 8 possibly serving for guiding the electronic circuit. The metal tab 4 is also armored and elastic, thus allowing the elastic insertion of the housing and its clipping at the end of the race under the shoulder of the hexagon 6 for example, by spring effect and clipping of the lug 5 under the hexagon 6 after the total insertion of the housing for example. The case thus becomes non-removable, thanks to the lug 5 which serves as a lock.

Le trou évidé 9 pratiqué dans la patte élastique 4 peut servir à l'introduction d' un outil spécial destiné à extraire le boîtier dans des circonstances spécifiques. The hollowed-out hole 9 made in the elastic tab 4 can be used for the introduction of a special tool intended to extract the housing in specific circumstances.

La patte métallique 4 est dessinée avec une forme à épaisseur variable en épaisseur et en hauteur de manière à interdire toute préhension avec un outil de serrage quelconque destiné éventuellement à écarter la patte métallique 4 dans le but d'extraire le boîtier 1 en force. The metal tab 4 is drawn with a shape with variable thickness in thickness and in height so as to prevent any gripping with any clamping tool possibly intended to spread the metal tab 4 in order to extract the housing 1 in force.

La forme de pente 10 est très spécifique et précise dans le cas particulier de l'électrovanne d'un type de pompe à injection pour moteur diesel. Seule en effet cette pente autorise l'introduction du boîtier 1 sur l'électrovanne 11 concernée compte tenu de l'environnement et des accessoires de la dite pompe. The shape of the slope 10 is very specific and precise in the particular case of the solenoid valve of a type of injection pump for a diesel engine. In fact, only this slope allows the introduction of the housing 1 on the solenoid valve 11 concerned, taking into account the environment and the accessories of said pump.

Claims

1) Protective housing (1) intended to protect the physical and electrical access to an electrical member, characterized in that, made of material which is very difficult to perforate or sawn, it comprises two contiguous housings physically communicating in order to ensure switching , electric between the housing (2) containing the member to be protected and the housing (3) containing the management and control members, the elastic metal tabs (4) ensure the tear-away fixing of the assembly thus making it inviolable and fully controlled the electronic circuit for controlling the electrical component and its remote control components or not

2) Housing according to claim 1 characterized in that the housing (1) having a shape matching that of the member to be protected, is equipped with one or more metal tabs, difficult to pierce sawable or deformable capable of locking the member (11 ) to be protected by means of lugs (5) which, forcibly returned to the member, lock onto a protuberance (6) of this member (l).

3) Housing according to claims 1 or 2 characterized in that it comprises grooves (7) which can receive a partition intended to physically isolate the two housings (2) and (3).

4) Housing according to any one of the preceding claims, characterized in that the elastic metal tabs have a shape with variable thickness in thickness and in height so as to prevent any gripping with any tightening tool intended possibly to spread the metal tabs ( 4) in order to forcefully extract the housing (1).

5) Housing according to any one of the preceding claims, characterized in that the shape (10) of slope of the housing (1) is specific and precise according to the plan, in the particular case of the control of a solenoid valve, of a type of injection pump for diesel engine. Only this precise slope allows the introduction of the housing (1) on the solenoid valve (11) concerned, taking into account the environment and the accessories of said pump.

6) Housing according to any one of the preceding claims, characterized in that the elastic tabs (4) are equipped with a hole (9) intended for the installation of an extraction tool.

7) Housing according to any one of the preceding claims, characterized in that the housing (1) is equipped with grooves (8) intended to guide the electronic management and control circuit.