EP1585200A1 - Sealed electrical connecting device - Google Patents

Abstract

The device has an enclosure (5) comprising a section (12) supporting an outlet (2), and a section (13) connected in removable and watertight manner to the section (12). The sections are dissociated so as to realize electrical connection between an electrical connector unit (4) of an electrical apparatus and the outlet. The sections permit to protect the connection from liquid, when associated with each other.

Description

The present invention relates to the field of electrical connection, more particularly to electrical connection devices intended to be watertight between an electrical outlet and an electrical appliance comprising an electric cable connection at one end of which electrical connection means are fixed to the power outlet.

The prior art proposes sealed electrical connection devices between two means for connecting electric cables, of the respective male / female type placed at the end of the electrical cables that are to be connected, by sealing electrical connection by a sealed engagement of the connecting means, plus precisely the envelope of the plug which fits into the envelope of the socket female, performing during this coupling operation a sealing by contact of the respective envelopes, thus preventing the introduction of liquids into the connection of electrical wires inside the envelopes.

Such devices are specific and require a pairing of the plugs and female, which limits the flexibility of use. Indeed, when one wishes connect a standard socket that does not have sealing means to a socket current whose envelope has a sealing system provided for the envelope complementary to a complementary socket, the consequence is that the connection is not more tight. In general, there is no connection device electrical connection making it possible to obtain a watertight connection whatever the means of electrical connection, in particular regardless of the shape of the outer casing of the socket fitted to an electrical appliance, more precisely attached to its electric cable.

• une enceinte dotée d'une paroi étanche aux liquides et définissant un espace libre à l'intérieur duquel le branchement électrique est effectué,
• une traversée de la paroi étanche de l'enceinte, permettant au câble électrique de raccordement de franchir cette paroi de manière étanche aux liquides,
• l'enceinte supportant la prise de courant, et comportant un couvercle articulée en sorte de permettre :
  • un accès des moyens de raccordement électrique de l'appareil électrique à la prise de courant lorsque le couvercle est ouvert en vue de la réalisation du branchement électrique, et
  • une protection du branchement électrique contre les liquides provenant de l'extérieur de l'enceinte lorsque le couvercle est fermé, ce dernier étant fermé de manière étanche aux liquides.

Document GB 2 269 485, which partially overcomes these drawbacks, relates to a liquid-tight electrical connection device between a socket and an electrical appliance comprising an electrical connection cable at one end of which are fixed means for electrical connection to the socket, the device comprising:

• an enclosure having a liquid-tight wall and defining a free space within which the electrical connection is made,
• a crossing of the sealed wall of the enclosure, allowing the electrical connection cable to cross this wall in a liquid-tight manner,
• the enclosure supporting the socket, and having a hinged lid so as to allow:
  • an access of the electrical connection means of the electrical apparatus to the socket when the lid is open in order to make the electrical connection, and
  • protection of the electrical connection against liquids coming from outside the enclosure when the lid is closed, the latter being closed in a liquid-tight manner.

• une enceinte comportant une paroi étanche aux liquides et définissant un espace libre à l'intérieur duquel ladite prise de courant est placée et ledit branchement électrique est destiné à être effectué,
• au moins une première traversée destinée à être étanche aux liquides, de ladite paroi étanche de l'enceinte, destinée à permettre au dit au moins un câble électrique de raccordement de franchir ladite paroi de manière étanche aux liquides,

ledit dispositif étant caractérisé en ce que :

• ladite enceinte comporte en outre :
  • une première partie supportant ladite au moins une prise de courant,
  • une deuxième partie liée de manière démontable et étanche à ladite première partie en sorte de permettre :
    • un accès desdits moyens de raccordement électrique dudit au moins un appareil électrique à ladite au moins une prise de courant lorsque lesdites première et deuxième parties de l'enceinte sont dissociées en vue de la réalisation dudit branchement électrique, et
    • une protection dudit branchement électrique contre les liquides provenant de l'extérieur de ladite enceinte lorsque lesdites première et deuxième parties de l'enceinte sont associées entre elles,
• ladite première partie comportant une cheminée cylindrique à section circulaire, au sommet de laquelle est formé le filetage destiné à permettre une fixation de la deuxième partie de l'enceinte,
• ladite deuxième partie de l'enceinte comprenant :
  • un couvercle apte à se visser sur l'extrémité supérieure de la cheminée de la première partie de l'enceinte, destiné à être lié à cette dernière de manière démontable et étanche par une liaison de type vis-écrou,
  • des moyens de bride, non liés en rotation avec le couvercle, destinés à comprimer ladite première traversée en vue d'assurer son étanchéité.

The present invention provides an improved sealed electrical connection device. More specifically, it consists of an electrical connection device, intended to be liquid-tight, between at least one power socket and at least one electrical appliance comprising at least one electrical connection cable at one end of which connection means are attached. at least one electrical outlet, comprising:

• an enclosure having a liquid-tight wall and defining a free space within which said socket is placed and said electrical connection is intended to be carried out,
• at least a first penetration intended to be liquid-tight, of said sealed wall of the enclosure, intended to allow said at least one electrical connection cable to pass said wall in a liquid-tight manner,

said device being characterized in that :

• said enclosure further comprises:
  • a first part supporting said at least one socket,
  • a second part removably and sealingly connected to said first part so as to allow:
    • an access of said electrical connection means of said at least one electrical device to said at least one power outlet when said first and second parts of the enclosure are dissociated for the realization of said electrical connection, and
    • protection of said electrical connection against liquids coming from outside said enclosure when said first and second parts of the enclosure are associated with each other,
• said first portion having a cylindrical chimney with a circular section, at the top of which is formed the thread intended to allow attachment of the second part of the enclosure,
• said second part of the enclosure comprising:
  • a cover adapted to be screwed on the upper end of the chimney of the first part of the enclosure, intended to be connected thereto removably and sealed by a screw-type connection,
  • flange means, not linked in rotation with the cover, for compressing said first through to ensure its sealing.

The present invention makes it possible thanks to a sealed enclosure such as this is defined above, to make the electrical connection at liquid level appropriate socket placed in the enclosure, made with the complementary socket any electrical appliance that does not have sealing equipment specific on its catch. The proposed configuration of the first and second parts of the enclosure allows increased efficiency of the seal, and better hold in the time of this seal. Indeed, the screw-nut type connection makes it possible to exert a force important and multiplied on the first crossing to settle or perfect the sealing in this zone, and the flange means which are not rotated in rotation by the cover, allow to exercise, via the latter during its rotation, an effort on the traversing without the friction due to the rotation of the cover, thus avoiding wear premature seal.

According to an advantageous characteristic, the flange means intended to compress said first crossing to ensure its sealing, are associated with said cover by a link having a degree of freedom in rotation.

This characteristic makes it possible to confer compactness and functionality on the device, by a second part of the enclosure consisting of a single piece, and thus avoid the possibility of losing one or other of the elements of the second part of the enclosure.

• des moyens de connexions de ladite au moins une prise de courant à au moins un câble électrique d'alimentation,
• une deuxième traversée destinée à être étanche aux liquides, de ladite paroi étanche de ladite enceinte, apte à permettre au dit au moins un câble électrique d'alimentation de franchir ladite paroi de manière étanche aux liquides.

According to an advantageous characteristic, the device according to the invention furthermore comprises:

• means for connecting said at least one power outlet to at least one power supply cable,
• a second bushing intended to be liquid-tight, said sealed wall of said enclosure, adapted to allow said at least one electrical supply cable to cross said wall in a liquid-tight manner.

This characteristic makes it possible to locate the device along a cable, at any which place of the power supply cable.

According to an advantageous characteristic, said electrical connection means are electrical connection means with plugs, and said at least one plug of current comprises complementary housings for said cards.

According to an advantageous characteristic, said first watertight crossing is disposed between said first and second parts of the enclosure.

According to an advantageous characteristic, said at least one first crossing seal comprises a cylindrical seal dissociated axially in two half-joints, a first half-joint being connected to said first part of the enclosure, a second half-seal being bonded to said flange means, so that when said first and second parts of the enclosure are associated with each other, the longitudinal axis of said joint cylindrical seal corresponds to the axis of said at least one electrical cable of connection.

According to an advantageous characteristic, said connection of screw-nut type allowing to associate the first and second parts of the enclosure, has an axis of rotation forming a right angle with said longitudinal axis of said cylindrical gasket.

According to an advantageous characteristic, said second watertight passage comprises clamping means of said electric supply cable, in a determined range of diameters.

According to an advantageous characteristic, said clamping means comprise a plurality of tabs adapted to surround said power supply cable, said tongues having free ends adapted to converge towards the longitudinal axis of the electric supply cable under the effect of a thrust parallel to said longitudinal axis the electrical supply cable to ensure a tightening of the latter.

According to an advantageous characteristic, said tabs are regularly distributed on an annular surface intended to surround said electric supply cable, said tongues respectively having a thick cross-section decreasing towards the inside of the annular surface.

Other characteristics and advantages will appear on reading the description which follows of an exemplary embodiment of an electrical connection device according to the invention, accompanied by the accompanying drawings, an example given for non-limiting illustrative

FIG. 1 represents an exploded and perspective view of an example of a mode embodiment of the sealed electrical connection device according to the invention.

FIG. 2 represents a view in the assembled state and in perspective of the example of Figure 1.

FIG. 3 represents a sectional view along plane P in the assembled state of the example of Figure 1.

The electrical connection device 1 shown in FIGS. 1 to 3 is intended to be liquid-tight, and allows the electrical connection between at least one socket 2 and an electrical device (not shown) comprising a cable electrical connection 3 at one end of which are fixed means of electrical connection 4 to this socket, adopting advantageously the shape of electrical connection means 4 with plugs 29, the socket 2 comprising additional housing 30 for sheets 29.

• une enceinte 5 comportant une paroi 6 étanche aux liquides et définissant un espace libre 7 à l'intérieur duquel la prise de courant 2 est placée et à l'intérieur duquel le branchement électrique entre les moyens de raccordement électrique 4 et la prise 2 est destiné à être effectué,
• avantageusement des moyens de connexions 8 de la prise de courant 2 à un câble électrique d'alimentation 9,
• avantageusement une deuxième traversée 10 destinée à être étanche aux liquides, de la paroi étanche 6 de l'enceinte 5, apte à permettre au câble électrique d'alimentation 9 de franchir la paroi 6 de manière étanche aux liquides,
• une première traversée 11 destinée à être étanche aux liquides, de la paroi étanche 6 de l'enceinte 5, destinée à permettre au câble électrique de raccordement 3 de l'appareil électrique (non représenté) de franchir la paroi 6 de manière étanche aux liquides,
• l'enceinte 5 comportant en outre :
  • une première 12 partie supportant la prise de courant 2,
  • une deuxième 13 partie liée de manière démontable et étanche à la première partie 12 en sorte de permettre :
    • un accès des moyens de raccordement électrique 4 de l'appareil électrique à la prise de courant 2 lorsque les première 12 et deuxième 13 parties de l'enceinte 5 sont dissociées en vue de la réalisation du branchement électrique des moyens de raccordement électrique 4 à la prise 2, et
    • une protection du branchement électrique contre les liquides provenant de l'extérieur de l'enceinte 5 lorsque les première 12 et deuxième 13 parties de l'enceinte sont associées entre elles.

The device 1 comprises, as more particularly shown in FIGS. 1 and 3:

• an enclosure 5 comprising a wall 6 impervious to liquids and defining a free space 7 inside which the socket 2 is placed and inside which the electrical connection between the electrical connection means 4 and the socket 2 is intended to be done,
• advantageously connection means 8 of the socket 2 to an electric supply cable 9,
• advantageously a second crossing 10 intended to be liquid-tight, the sealed wall 6 of the enclosure 5, adapted to allow the power supply cable 9 to cross the wall 6 in a liquid-tight manner,
• a first penetration 11 intended to be liquid-tight, of the sealed wall 6 of the enclosure 5, intended to allow the electrical connection cable 3 of the electrical apparatus (not shown) to cross the wall 6 in a liquid-tight manner ,
• the enclosure 5 further comprising:
  • a first 12 part supporting the socket 2,
  • a second portion 13 removably and sealingly connected to the first portion 12 so as to allow:
    • an access of the electrical connection means 4 of the electrical apparatus to the socket 2 when the first 12 and second 13 parts of the enclosure 5 are dissociated in order to achieve the electrical connection of the electrical connection means 4 to the socket 2, and
    • protection of the electrical connection against liquids coming from outside the enclosure 5 when the first 12 and second 13 parts of the enclosure are associated with each other.

The first part 12 of the enclosure 5 can advantageously adopt the shape of a housing advantageously rigid, consisting of a bottom 32 of housing topped with a top 33 housing having a wide opening 34 to be closed by the second part 13 of the enclosure 5. The bottom 32 and the top 33 of the housing can advantageously be removably associated via screws 35, as shown in FIG. FIG. 2, the connection between the bottom 32 and the top 33 to be sealed against liquids, for example via an O-ring 36 placed between the bottom 32 and the intermediate 33 between the contact surfaces of the latter. The link removable between the bottom 32 and the top 33 is advantageous for housing in the enclosure 5 more bulky organs than the passage of the opening 34 which, in turn, must have sufficient dimensions to allow the connecting means to pass 4 in order to introduce them into the socket 2 which will be arranged in front of this opening 34, as shown in FIG. 3. For this purpose, the opening 34 will be dimensioned so that most, if not all, connection means 4 of the devices electrical devices likely to be connected to the device 1, may pass through the opening 34 without being obstructed by the edges of the opening.

The housing used in the constitution of the enclosure 5 can adopt any shape appropriate, for example a parallelepipedal shape, surmounted by a chimney cylindrical 42 with circular section, at the top of which is formed the thread intended for allow a releasable attachment of the second portion 13 of the enclosure 5, which will be described further. The free space inside the enclosure 5 can accommodate and fix any electrical or accessory body that would be desired for proper operation particular of the device according to the invention, for example any switching system, fuse, etc ... The bottom of the chimney 42 is occupied by the socket 2.

The socket 2 will be made according to the devices that you want connect to the device 1 shown, usually according to a specific standard. Taking current 2 will not be described in more detail here, it can answer any standard in force, in particular in the countries in which device 1 is intended for to be used. In the example shown, the socket 2 is a socket commonly used, of the three-slot female type 30, intended to receive a plug complementary to three pads 29, namely a phase, a neutral, and a ground, also commonly used.

The socket 2 will be fixed in the bottom 32 of the first 12 part of the enclosure 5 by means of an advantageously removable connection, for example by screw 37, possibly via a support plate 38, allowing a connection of the power supply cable 9 via connection means 8, which can adopt the form of a terminal block 39 suitable, for example three connections in the example shown in Figure 3.

• un couvercle 14 lié par une liaison 22 de type vis-écrou de manière démontable et étanche, à la première 12 partie, plus particulièrement à l'extrémité 33 supérieure de la cheminée 42 de cette première partie, comme représenté sur les figures 1 et 3,
• des moyens de bride 15, destinés à comprimer la première traversée en vue d'assurer son étanchéité, avantageusement associés au couvercle 14 par une liaison 16 comportant un degré de liberté en rotation.

The second part of the enclosure 5 comprises:

• a cover 14 connected by a connection 22 of screw-nut type removably and sealing manner, at the first portion 12, more particularly at the upper end 33 of the chimney 42 of this first portion, as shown in FIGS. 1 and 3 ,
• flange means 15 for compressing the first passage to ensure its sealing, advantageously associated with the cover 14 by a link 16 having a degree of freedom in rotation.

The lid 14 adopts for example the shape of a circular lid suitable for screw on the upper end 33 of the chimney 42 of the first part of the enclosure 5, to a position of complete closure of the opening 34, sealed against liquids for example through an O-ring 40 placed between the surfaces of contact of the cover 14 and the end 33 of the chimney, and crushed at the end of screwing to ensure tightness.

Advantageously, the first tight passage 11 is disposed between the first 12 and second 13 parts of the enclosure 5, more particularly between the end 23 top of the first part of the enclosure 5 and the flange means second part 13 of the enclosure 5.

The first bushing 11 is located in the bottom of a notch 43 of the wall 6 constituent of the upper end 33 of the chimney 42. A protruding radial portion 44 of a shape complementary to that of this notch 43, in order to fit into this last, is formed on the flange 15, as shown in Figure 1. The notch 43a for essential function to allow a locking of the flange 15 in rotation so that it does not when the cover 14 is tightened, thus making it possible to clamp the 11 through the screwing axis of the lid 14. As shown in Figure 1, the cross section of the notch 43 may adopt a trapezoidal shape whose small top is the bottom of the notch and the base is the opening of the notch at the top of the chimney 42.

The first watertight passage advantageously comprises a seal cylindrical 17 dissociated axially in two half-joints, a first 18 half-joint being bound at the first part 12 of the chamber 5 in the bottom of the notch 43, a second part 19 half-seal being connected to the flange means 15 in the portion 44 thereof intended to be find it face to face with the bottom of the notch 43, so that when the first 12 and second 13 parts of the enclosure 5 are associated with each other, the longitudinal axis 20 of the cylindrical seal corresponds to the axis 21 of the electrical connection cable 3. The seal 17 will advantageously be made of flexible synthetic material and elastic so as to allow a correct seal under the crushing of the flange 15 despite different electrical cable diameters 3 connection. The surface of the joint 17 intended to surround the cable may include any appropriate relief, for example annular beads (not shown) for this purpose, in order to concentrate the pressure on these parts in relief and decrease the force required to ensure a seal.

The connection 22 screw-nut type to associate the first 12 and second 13 parts of the enclosure 5, more particularly to associate the cover 14 with the part upper of the chimney 42, advantageously comprises a vertical axis of rotation 23 forming a right angle with the longitudinal axis 20 of said cylindrical seal 17.

The flange means 15 advantageously adopt a generally cylindrical shape having a cylindrical wall 45 of circular section, closed at one end upper by a web 46 for allowing a rotating connection with the cover 14 by means of a screw 47 for example, placed in the axis 23 of rotation of the cover 14 when as shown in FIG. 3. Flange means 15 and cover 14 comprise means for mutual guidance in rotation, for example a circular rib 48 formed on the cover and a shoulder 48 formed on the flange 15 or vice versa, the cylindrical wall 45 with circular section being intended to fit into the chimney 42 to guide the flange 15 in its displacement in translation during screwing of the cover 14, and also guide the engagement of the cover 14 on the end threaded top of the chimney 42. The portion 44 of the flange 15 which adopts a shape complementary to that of the notch 43, in order to fit into the latter, is more particularly formed in external radial projection on the outer surface of the wall cylindrical 45 of circular section of the flange 15. A sealing means will be added in the indentation 43 to ensure a liquid tightness, the casing constituted by the notch 43 and the projecting portion 44, for example a recessed seal 50 placed on the walls 31 obliquely of the trapezoidal shape of the notch, as shown in the 1, or placed on the projecting portion 44 of the flange 15. Thus, the sealing at liquids is provided between the first 12 and second 13 parts of the enclosure 5 comprising the second bushing 11, the O-ring 40 of the cover 14, the seal recessed 50 of the notch 43, by the cylindrical seal 17 of the electric cable connection 3 of the electrical apparatus connected to the device 1, and by the cable itself.

The second leaktight passage, disposed in full wall 6 of the enclosure 5, particularly the bottom 32 of the enclosure 5, will be made in any known manner, for example as follows preferentially: the second crossing 10 comprises advantageously clamping means 24 of the electric supply cable 9, in a range of diameters in order to have flexibility of use allowing make the same watertight crossing for different diameters of power cables. The clamping means 24 comprise for example a plurality of tongues 25 substantially axial whose one of their ends is fixed on an annular surface 28 perpendicular to the longitudinal axis of the cable and surrounding the latter, the tongues 25 having free ends 26 capable of converging towards the longitudinal axis 27 of the cable 9 under the effect of a thrust parallel to that axis or according thereto in order to tightening of the cable, for example thrust obtained by means of a screw-nut system adapted to transform the axial thrust into radial thrust of the tabs against the cable, as shown in Figure 3. The tongues 25 are evenly distributed on the surface ring 28 intended to surround the cable 9, and respectively preferably comprise a cross-section of decreasing thickness towards the inside of the annular surface. The tongues 25 preferably have an appropriate inclination deformation of the tongue to ensure a tightness of the cable 9 and a seal at contact of it.

It should be noted that the device 1 according to the invention may comprise several chimneys 42 for example as described above, comprising respectively in their funds from similar or different outlets in order to watertight connection of several electrical appliances not all having the same electrical connection means. It can also be envisaged that the device 1 according to the invention is fed by several power supply cables, involving the realization of several watertight crossings, one by power cable.

• lorsqu'il n'est pas utilisé, le dispositif 1 n'est normalement pas étanche car le passage du câble électrique 3 de raccordement d'un appareil n'est pas occupé, aucun câble ne traversant le passage ; le dispositif n'est donc pas étanche et s'il est alimenté en courant, il doit être gardé hors d'eau ; le couvercle 14 de l'enceinte est vissé et protège ainsi en partie la prise de courant à l'intérieur ;
• lorsqu'un opérateur souhaite brancher un appareil électrique au dispositif 1 alimenté par un câble électrique 9 en place et électriquement raccordé, il dévisse le couvercle 14 et dégage l'ouverture 34 en retirant le couvercle 14 et sa bride 15 ;
• il branche ensuite les moyens de raccordement 4 électrique sur la prise de courant 2 à l'intérieur de l'enceinte 5, et positionne le câble de raccordement électrique 3 dans le demi-joint 18 inférieur de la première traversée 11 ;
• l'opérateur introduit ensuite les moyens de bride 15 dans la cheminée 42 en tenant le couvercle 14, et en prenant soin de positionner la partie saillante 44 en vis à vis de l'échancrure 43 ; de préférence, au moment où le couvercle se met en prise sur le filetage en partie supérieure de la cheminée 42, la partie saillante 44 est déjà introduite dans l'échancrure 43 ;
• il visse ensuite le couvercle 14 jusqu'au serrage, de manière à écraser le joint torique 40, le joint cylindrique 17 de passage du câble 9, et le joint 50 de l'échancrure 43, assurant ainsi l'étanchéité du dispositif 1 aux liquides.

The device works as follows:

• when not in use, the device 1 is normally not sealed because the passage of the electrical cable 3 connecting a device is not occupied, no cable passing through the passage; the device is not waterproof and if it is powered, it must be kept out of water; the cover 14 of the enclosure is screwed and thus partially protects the socket inside;
• when an operator wishes to connect an electrical appliance to the device 1 powered by an electric cable 9 in place and electrically connected, he unscrews the lid 14 and releases the opening 34 by removing the lid 14 and its flange 15;
• it then connects the electrical connection means 4 to the socket 2 inside the enclosure 5, and positions the electrical connection cable 3 in the lower half-joint 18 of the first bushing 11;
• the operator then introduces the flange means 15 in the chimney 42 by holding the cover 14, and taking care to position the projecting portion 44 opposite the notch 43; preferably, when the cover engages the thread in the upper part of the chimney 42, the projecting portion 44 is already introduced into the notch 43;
• it then screws the cover 14 until tightening, so as to crush the O-ring 40, the cylindrical joint 17 for the passage of the cable 9, and the seal 50 of the notch 43, thereby sealing the device 1 to the liquids .

The device 1 thus obtained can be placed in humid environments or watered, for example near a swimming pool, garden, outside, etc ...

It should be noted that the second part 13 of the enclosure 5, comprising the cover 14 and its flange 15 may be connected to the first part of the enclosure 5 by means of a connection (not shown) allowing the screwing-unscrewing operation of the cover 14 and the clearance of the opening 34, to avoid losing the lid or having to search. This connection can for example be achieved by means of an articulated arm or similar.

Claims (10)

Device (1) for electrical connection, intended to be liquid-tight, between at least one socket (2) and at least one electrical appliance comprising at least one electrical connection cable (3) at one end of which are fixed means electrical connection (4) to said at least one power socket, comprising: an enclosure (5) having a liquid-tight wall (6) defining a free space (7) within which said socket is placed and said electrical connection is to be made, at least a first passage (11) intended to be liquid-tight, of said sealed wall of the enclosure, intended to allow said at least one electrical connection cable (3) to pass said wall in a liquid-tight manner, said device being characterized in that : said enclosure further comprises: a first part (12) supporting said at least one socket, a second part (13) releasably and sealingly connected to said first part so as to allow: an access of said electrical connection means (4) of said at least one electrical apparatus to said at least one power outlet when said first (12) and second (13) parts of the enclosure are dissociated for the purpose of making said electrical connection , and protection of said electrical connection against liquids coming from outside said enclosure when said first and second parts of the enclosure are associated with each other, said first portion (12) comprising a cylindrical chimney (42) with a circular cross-section, at the top of which is formed the threading intended to allow attachment of the second portion (13) of the enclosure (5), said second (13) part of the enclosure comprising: a cover (14) adapted to be screwed on the upper end (33) of the chimney (42) of the first part of the enclosure (5), intended to be connected thereto removably and sealed by a connection (22) screw-nut type, flange means (15), not connected in rotation with the lid, for compressing said first passage to ensure its sealing. Device according to claim 1, characterized in that the flange means (15) for compressing said first passage (11) to ensure its sealing, are associated with said cover (14) by a link having a degree of freedom in rotation. Device according to claim 1 or 2, characterized in that it further comprises: connection means (8) for connecting said at least one outlet to at least one power supply cable (9), a second bushing (10) intended to be liquid-tight, said sealed wall of said enclosure, adapted to allow said at least one electrical supply cable to cross said wall in a liquid-tight manner. Device according to any one of claims 1 to 3, characterized in that said electrical connection means (4) are electric plug connection means (29), and in that said at least one power socket (2) comprises complementary housings (30) for said sheets. Device according to any one of claims 1 to 4, characterized in that said first penetration (11) sealed is disposed between said first (12) and second (13) parts of the enclosure. Device according to any one of claims 1 to 5, characterized in that said at least one first (11) sealing bush comprises a cylindrical seal (17) dissociated axially in two half-joints, a first (18) half -joint being bonded to said first (12) part of the enclosure (5), a second (19) half-joint being bonded to said flange means (15), so that when said first (12) and second (12) 13) parts of the chamber are associated with each other, the longitudinal axis (20) of said cylindrical gasket corresponds to the axis (21) of said at least one electrical connection cable (3). Device according to any one of claims 1 to 6, characterized in that said connection (22) of screw-nut type for associating the first (12) and second (13) parts of the enclosure (5) comprises an axis of rotation (23) forming a right angle with said longitudinal axis (20) of said cylindrical seal (17). Device according to any one of claims 1 to 7, characterized in that said second (10) sealed passage comprises clamping means (24) of said power supply cable (9) in a given range of diameters. Device according to claim 8, characterized in that said clamping means (24) comprise a plurality of tongues (25) able to surround said electric supply cable (9), said tabs comprising free ends (26) able to converge towards the longitudinal axis (27) of the electric supply cable under the effect of a thrust parallel to said longitudinal axis of the electric supply cable in order to ensure clamping thereof. Device according to claim 9, characterized in that said tongues (25) are evenly distributed on an annular surface (28) intended to surround said electric supply cable (9), said tongues respectively comprising a cross section of decreasing thickness towards inside the annular surface.

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