EP2357708A1 - Electrical connection system including a wall socket and a mobile socket intended for being connected to an electric device and provided such as to engage with said wall socket - Google Patents

Abstract

The system has a mobile socket cooperating with a wall socket whose closed hollow housing (50) is connected to power supply wires. A sliding sleeve (40) is movably mounted in the housing between contact and protective positions in which the sleeve is in and not in electrical contact with the wires, respectively. The sleeve is in electrical contact with the mobile socket and occupies the contact position when the mobile socket cooperates with the wall socket. The sleeve occupies the protective position when the mobile socket does not cooperate with the wall socket.

Description

1. Field of the invention

The field of the invention is that of the design and manufacture of electrical sockets intended to be implanted inside buildings for example industrial, tertiary, residential, hospital ...

More specifically, the invention relates to an electrical connection system for connecting various electrical equipment to the electrical network of a building.

2. Prior Art

Electrical outlets are commonly used to connect various electrical appliances, domestic or industrial, to a building's electrical network.

These electrical sockets conventionally comprise a socket and a plug adapted to cooperate with the socket.

The sockets are in the form of a wall-mounted base.

For this, a cylindrical hole is formed in a wall. Power wires are drawn inside the wall from the electrical panel of the building into this hole. A housing is housed there. The base is connected to the power supply wires before being recessed and secured in the housing.

The base usually has on its outer face two holes coinciding with electrical contacts connected to the power supply son, and a stud connected to a ground wire and protruding outside the base.

The plug generally comprises two studs projecting out of the socket and a bore. The pads are connected to power supply wires and the bore is connected to a ground wire, these wires being connected to an electrical equipment.

The plug is intended to cooperate with the socket. When the male and female plugs cooperate with each other, the plugs of the plug are housed in the holes of the socket, and the plug of the socket is inserted into the bore of the plug. The electric current flowing in the electrical network of the building then passes from the socket to the plug to power the electrical equipment which it is secured.

This type of electrical outlet is advantageous in that it ensures effective electrical contact between an electrical equipment and the electrical network of a building inside which it is installed.

However, when no plug co-operates with a socket, the electrical contacts housed in the socket are accessible. It may happen that people, including young children, insert small metal objects inside the holes in which these electrical contacts are housed. They may then experience an electric shock. This type of socket can thus be relatively dangerous because improper use can lead to a risk of electrocution.

To overcome this drawback, it is known to cooperate a removable cover with a socket when no plug is connected. These covers have the advantage of breaking access to contactors housed in the socket and thus to avoid the risk of electrocution.

However, even if some effort is made to remove these caches, children may be able to remove them and may become electrocuted.

• une position d'obturation, prise lorsque aucune prise mâle ne coopère avec la prise femelle, dans laquelle ils bouchent les trous de la prise femelle bloquant ainsi l'accès aux contacts électriques qui y sont logés, et
• une position de libération, prise lorsque l'on fait coopérer une prise mâle avec la prise femelle, dans laquelle ils sont relevés sous l'effet de l'insertion des plots de la prise mâle dans les trous de la prise femelle en sorte que le contact électrique entre ces prises mâle et femelle peut être établi.

In addition, the use of such removable covers is quite restrictive insofar as a cover must be set up manually every time an electrical equipment is disconnected from a socket, and removed each time that electrical equipment there is disconnected and the socket remains vacant. In order to overcome this disadvantage, some electrical outlet manufacturers have thought of providing the female sockets with shutters placed at the contact access holes, which flaps are movable between:

• a shutter position, taken when no plug co-operates with the socket, in which they plug the holes of the blocking socket access to the electrical contacts housed therein, and
• a release position, taken when a plug is cooperating with the socket, in which they are raised under the effect of the insertion of the plugs of the plug into the holes of the socket so that the electrical contact between these male and female plugs can be established.

This type of electrical outlet has the advantage of being more convenient to use than removable covers. Indeed, the passage from one to the other of the shutter or release positions is automatically obtained sometimes by inserting a plug in a socket, sometimes disconnecting a plug from a socket. It follows that their implementation is safer than that of removable covers insofar as it is certain that the closed position, or safety position, is always taken by the flaps as soon as no plug co-operates more with a socket.

Nevertheless, the implementation of this type of grip is not free of drawbacks.

3. Disadvantages of prior art

In particular, although access to the electrical contacts housed in the holes of a socket is made difficult because of the implementation of folding flaps, it is however not completely ruled out.

It can indeed happen that people manage to insert a metal object inside the socket thus placing the flap or flaps in their release position in the same way that this position is taken by the insertion of a plug male in the socket, until coming to rest against the electrical contacts.

Thus, although the implementation of folding flaps contributes significantly to limit any risk of electrocution linked to misuse of electrical outlets, it does not completely prevent this risk.

Moreover, current electrical outlets have the disadvantage of being dangerous and difficult to clean.

Indeed, the cleaning of female sockets generally requires the use of water or aqueous cleaning solutions. However, the sockets are permanently connected to the electrical network. Cleaning them may result in a risk of electrocution.

4. Objectives of the invention

The invention particularly aims to overcome these disadvantages of the prior art.

More specifically, an object of the invention is to provide, in at least one embodiment of the invention, a system for electrical connection of various electrical equipment to the electrical network of a building, which is particularly safe to use.

In particular, the invention has the objective of providing, in at least one embodiment of the invention, such a system which makes it possible to limit the risk of electrocution, in particular when no plug co-operates with the female socket. such a system.

Another object of the invention is to implement, in at least one embodiment of the invention, such a system whose main components can be cleaned easily, efficiently and safely.

The invention also aims, in at least one embodiment, to provide such a system that is simple and easy to implement, and whose design provides excellent robustness.

5. Presentation of the invention

• un boîtier creux fermé destiné à être solidarisé à une paroi murale et à être connecté à des fils d'alimentation électrique ;
• un baladeur monté mobile à l'intérieur dudit boîtier entre une position de contact dans laquelle il est en contact électrique avec lesdits fils d'alimentation et une position de protection dans laquelle il n'est pas en contact électrique avec lesdits fils d'alimentation ;

ledit baladeur étant en contact électrique avec ladite prise mobile et occupant ladite position de contact lorsque ladite prise mobile coopère avec ladite prise murale, et ladite position de protection lorsque ladite prise mobile ne coopère pas avec ladite prise murale.These objectives, as well as others which will appear later, are achieved according to the invention by means of an electrical connection system comprising a wall socket and a mobile socket intended to be connected to an electrical equipment and provided for cooperate with said wall outlet, said wall outlet comprising:

• a closed hollow housing intended to be secured to a wall wall and to be connected to power supply son;
• a player mounted movably inside said housing between a contact position in which it is in electrical contact with said supply wires and a protective position in which it is not in electrical contact with said supply wires;

said player being in electrical contact with said movable socket and occupying said contact position when said movable socket cooperates with said wall socket, and said protective position when said mobile socket does not cooperate with said wall socket.

• une position de protection, dans laquelle il ne conduit pas le courant électrique, lorsque aucune prise mobile ne coopère avec la prise murale, et
• une position de contact, dans laquelle il conduit le courant électrique, lorsqu'une prise mobile coopère avec la prise murale.

Thus, the invention is based on a completely original approach that consists in implementing in a wall outlet a walkman taking:

• a protective position, in which it does not conduct electrical current, when no mobile socket cooperates with the wall socket, and
• a contact position, in which it conducts the electric current, when a movable socket cooperates with the wall outlet.

In this way, when no mobile socket cooperates with a wall socket, and an individual insert a thin object through the lights passing through the hood of the housing of the wall socket, this object comes into contact with a non-conductive player of Electric power. This implementation thus avoids any risk of electrocution due to improper use of electrical outlets.

Within the meaning of the invention, a wall wall can indifferently be constituted by a wall, a partition, a ceiling, a work surface, and more generally any surface, horizontal, vertical or inclined, likely to receive, within a building, an electrical outlet.

According to an advantageous characteristic, said housing houses first elastic return means which act on said player to maintain it in said protective position.

This implementation makes it possible to guarantee an automatic return and a maintenance of the walkman in its protective position as soon as no mobile socket cooperates with the wall socket. A system according to the invention thus has a great safety and simplicity of use.

According to a preferred feature of the invention, said housing has first shape-guiding means complementary to second means of guidance formed on said player.

This implementation ensures an efficient movement of the player in the housing.

According to a preferred embodiment, said housing houses an axis along which said player is movably mounted in translation, said biasing means comprises a compression spring mounted on said axis between the bottom of said housing and said sliding element.

This simple implementation makes it possible to ensure automatic return of the player in the protection position as soon as no mobile socket cooperates with the wall socket.

According to a preferred aspect of the invention, said hollow housing is closed by a cover, the bottom of said housing being traversed by at least two holes provided to coincide with at least two contactors intended to be brought into contact with said power supply wires. , said cover being traversed by at least two holes coinciding with said contactors, said player comprising at least two pads, said pads being in abutment against said contactors when said player is in the contact position and are remote from said contactors when said player is in the protective position.

According to an advantageous aspect of the invention, the bottom of said housing is traversed by three holes provided to coincide with three contactors, one of said contactors being intended to be connected to the ground, and in that said axis is in contact with said connected contactor to earth and protrudes outside said housing through said hood.

The axis is then both a contributing element to ensure the guide of the player and an element for connecting the ground wire of the electrical network of a building to the mobile socket when it cooperates with the wall outlet. This tends to reduce the number of parts involved in the constitution of a system according to the invention.

Said mobile socket and said cover and / or said housing advantageously comprise magnetic attraction means.

This ensures a better hold of the mobile socket when it cooperates with the wall outlet.

According to a preferred embodiment, a system according to the invention comprises a wall box intended to be secured to said wall wall and in that said wall socket is intended to cooperate with said wall box removably, said wall housing housing an element. floating element intended to be connected to said power supply wires, said floating element being movable between an electrical insulation position in which it is in the bottom of said wall box, and an electrical connection position, taken when said wall socket cooperates with said wall box, wherein said floating element is in front of said wall box so that an electrical connection between said player and said floating element can be established when said player is in said contact position.

It is thus possible to simply dismount the wall socket in order to clean it efficiently and safely.

In addition, when the wall socket is temporarily removed from the wall box, the floating element is at the bottom of the wall box so that it is difficult to reach the electrical elements housed in the wall box. This improves the security of the system.

In this case, said wall housing preferably comprises second resilient return means which act on said floating element to maintain it in said electrical insulation position.

Thus, the floating element returns by default in its electrical isolation position. In this case also, said floating element preferably comprises magnetic attraction means.

Thus, as soon as the wall socket cooperates with the wall box, the magnetic attraction means of the floating element are attracted by the magnetic attraction means of the wall socket and is placed in its electrical connection position.

Preferably, said wall box defines an interior cavity closed by a cover traversed by at least two holes provided to coincide with said holes. minus two pads when said wall socket cooperates with said wall box, said internal cavity accommodating said floating element carrying at least two contacts intended to be connected to said power supply wires, said contacts being remote from said cover when said floating element is in the position electrical insulation and are in abutment against said cover when said floating element is in the electrical connection position.

6. List of figures

• la figure 1 illustre une prise mobile selon l'invention ;
• la figure 2 illustre une vue de côté d'un boîtier d'une prise murale selon _ l'invention ;
• la figure 3 illustre une vue arrière en perspective du boîtier illustré à la _ -figure 2 ;
• la figure 4 illustre un baladeur destiné à être monté mobile à l'intérieur du boîtier illustré aux figures 2 et 3 ;
• la figure 5 illustre un capot destiné à refermer un boîtier illustré aux figures
• 2 et 3 ;
• la figure 6 illustre une vue éclatée d'une prise murale selon l'invention ;
• la figure 7 illustre une vue avant en perspective d'un corps d'un boîtier mural selon l'invention ;
• la figure 8 illustre un élément flottant destiné à être logé à l'intérieur d'un corps illustré à la figure 7 ;
• la figure 9 illustre un couvercle destiné à refermer le corps d'un boîtier murale illustré à la figure 7 ;
• la figure 10 illustre une vue éclatée d'un boîtier mural selon l'invention ;
• la figure 11 illustre un adaptateur selon l'invention.

Other features and advantages of the invention will emerge more clearly on reading the following description of preferred embodiments, given as simple illustrative and non-limiting examples, and the appended drawings, among which:

• the figure 1 illustrates a mobile socket according to the invention;
• the figure 2 illustrates a side view of a housing of a wall socket according to the invention;
• the figure 3 illustrates a perspective rear view of the housing illustrated in the - figure 2 ;
• the figure 4 illustrates a player intended to be mounted movably inside the housing illustrated in FIGS. figures 2 and 3 ;
• the figure 5 illustrates a hood for closing a housing illustrated in FIGS.
• 2 and 3;
• the figure 6 illustrates an exploded view of a wall socket according to the invention;
• the figure 7 illustrates a perspective front view of a body of a wall box according to the invention;
• the figure 8 illustrates a floating element intended to be housed inside a body shown in FIG. figure 7 ;
• the figure 9 illustrates a cover for closing the body of a wall case illustrated in FIG. figure 7 ;
• the figure 10 illustrates an exploded view of a wall box according to the invention;
• the figure 11 illustrates an adapter according to the invention.

7. Description of an embodiment of the invention 7.1. Reminder of the general principle of invention

• une position de protection, dans laquelle il ne conduit pas le courant électrique, lorsque aucune prise mobile ne coopère avec la prise murale, et
• une position de contact, dans laquelle il conduit le courant électrique à la prise mobile lorsqu'une prise mobile coopère avec la prise murale.

The general principle of the invention is based on the implementation in a wall outlet of a walkman taking:

• a protective position, in which it does not conduct electrical current, when no mobile socket cooperates with the wall socket, and
• a contact position, in which it conducts the electric current to the mobile socket when a mobile socket cooperates with the wall socket.

In this way, when no mobile socket cooperates with a wall socket, and an individual insert a thin object through the lights passing through the hood of the housing of the wall socket, this object comes into contact with a non-conductive player of Electric power. This implementation thus avoids any risk of electrocution due to improper use of electrical outlets.

7.2. Example of a first embodiment of a connection system according to the invention

• une prise mobile, et
• une prise murale.

According to a first embodiment, a connection system according to the invention essentially comprises:

• a mobile socket, and
• a wall outlet.

7.2.1. Mobile socket

We present, in relation to the figure 1 an example of a mobile socket according to the invention.

As this is represented on this figure 1 , a movable socket 10 according to the invention comprises a body 11. The body 11 is traversed by two contacts 12 and a bore 13.

The contacts 12 are each connected to a phase wire of an electrical wire 14. The bore 13 houses another contact which is connected to a ground wire of the electrical wire 14. The electric wire 14 is intended to be connected to a any electrical apparatus such as a lamp.

The body 11 houses magnetic attraction means which in this embodiment comprise two magnets 15.

7.2.2. Outlet

We present, in relation with the Figures 2 to 6 , an embodiment of a wall socket according to the invention.

A wall socket according to the invention comprises a housing 20.

This housing 20 comprises a body having a first cylindrical extrusion 24 in the extension of which extends a second cylindrical extrusion 25, in the extension of which extends a third quadrangular extrusion 26, in the extension of which extends a fourth cylindrical extrusion 27. This fourth extrusion 27 has a groove 28. The body of this housing 20 defines an inner cavity 21. It has an opening 22 facing the cavity 21. It also comprises a bottom 23 which delimits the inner cavity 21. The bottom 23 comprises housing 33 adapted to house magnetic attraction means. Three diametrically opposite grooves 30 pass through the cavity 21 along the inner wall of the body of the housing 20. The fourth extrusion 27 has on its surface 32, tapping 31.

A wall socket according to the invention also comprises a player 40. This player 40 comprises a plate 41 having two straight edges 42 parallel to each other. The two rectilinear edges 42 are connected at each end by curvilinear edges 43 having a radius of curvature slightly less than the radius of the cavity 21 of the housing 20. The player 40 comprises two projecting grooves 44 which extend to the opposed to each other along the curvilinear edges 43. These protruding grooves 44 are provided to cooperate with the hollow grooves 30 of the housing 20. The player 40 is traversed by two holes 45 aligned along a passing axis by the two protruding grooves 44, and by an offset hole 46. The slider 40 can thus be inserted inside the cavity 21 which it is mounted to move in translation along the axis of the grooves 30, 44. The holes 45 are intended to coincide with the holes 29 of the bottom 23 of the housing 20 when the player is housed in the cavity 21, and the hole 45 with the bore 34.

A wall socket according to the invention also comprises a cover 50.

This cover 50 comprises a circular plate 51 having a diameter substantially equal to the diameter of the fourth extrusion 27. This plate 51 has housings 52 able to accommodate magnetic attraction means. It is traversed by holes 53, 54, as well as by screw passages 55 formed at its periphery. This cover 50 is intended to be fitted against the surface 32 of the fourth extrusion 27 of the housing 20 so that the holes 53 coincide with the holes 45 and holes 29, the hole 54 coincides with the hole 46 and drilling 34, and that the screw passages 55 coincide with threads 31. The assembly of a wall outlet according to the invention is carried out as follows.

Magnetic attraction means, comprising, for example magnets 60, are inserted in the housings 33. Pads 61 are force-fitted inside the holes 45 of the player 40 so that they are flush with the front surface 47 of the Walkman 40. An axle 62 is force-fitted inside the bore 34 formed in the bottom 23 of the casing 20 so that it projects inside the cavity 21 and is flush with the rear face 35 of the bottom 23. A compression spring 63 is mounted along the axis 62. The axis 62 is then inserted into the hole 46 of the player 40. The latter is slid along the axis 62 and inserted inside of the cavity 21 so that the grooves 44 and 30 cooperate with each other. Magnetic attraction means, comprising, for example, magnets 64, are inserted into the housings 52 of the cover 50. The cover 50 is then threaded through its hole 54 along the axis 62, then brought against the surface 32 of the housing 20. The assembly is held by means of screws (not shown) which pass through the passages 55 of the cover 50 and are housed in the threads 31 of the housing 20.

In this first embodiment, a contactor constituted by a domino is connected to each hole 29 and 34 of the hollow housing 20.

The installation of the connection system according to this first embodiment is obtained in the following manner.

A cylindrical hole is formed in a wall of a building. A standard electrical outlet box is inserted into this hole. Electrical wires are pulled from the electrical panel of the electrical network of the building into this hole. The phase wires are connected to the dominoes of the holes 29 and the ground wire is connected to the domino of the hole 34. The hollow housing 20 of the wall outlet is then secured to the standard housing in a conventional manner.

When no mobile socket cooperates with the wall socket, the player 40 is held in abutment against the cover 50 under the effect of the spring 63 so that it occupies a protective position in which the pads 61 are away from the contactors. The player 40 then drives no electric current. Thus, if a person introduces an object into the wall outlet through the holes 53 of the cover 50, this object comes into contact with the player 40 which does not conduct any electric current, which avoids any risk of electrocution.

To connect an electrical equipment to the electrical network of the building, a mobile socket 10 connected by an electric wire 14 to this device must cooperate with the wall socket.

For this, the contacts 12 of the mobile socket 10 are inserted inside the holes 53 of the cover 50. At the same time, the axis 62 enters the bore 13 of the mobile socket 10. The contacts 12 come into contact with the player 40. They act on the player 40 against the effect of the spring 63 so as to gradually place the player 40 in a contact position in which the pads 61 are in abutment against the contactors of the hollow housing 20. The insertion of the mobile socket 10 in the wall outlet requires the exercise of any effort of depression due to the magnetic attraction generated by the magnets.

The electrical connection is established and electrical current passes from the electrical network of the building to the electrical device connected to the mobile socket 10. When the mobile socket 10 is disconnected from the wall socket, the player automatically resumes its protective position under the spring effect 63.

7.3. Example of a second embodiment of a connection system according to the invention

• une prise mobile ;
• une prise murale ;
• un boîtier mural.

According to a second embodiment, a connection system according to the invention essentially comprises:

• a mobile socket;
• a wall outlet;
• a wall box.

7.3.1. Mobile socket and wall socket

The mobile socket according to this second embodiment is identical to the mobile socket 10 according to the first embodiment.

The wall socket according to this second embodiment is identical to the wall socket according to the first embodiment, apart from the fact that it does not include contactors intended to be connected to the wires of the electrical network of a building.

7.3.2. Wall box

We present, in relation to the figure 7 an example of a wall box according to the invention.

As this is represented on this figure 7 , such a wall housing 70 comprises a substantially cylindrical body inside which is formed an inner cavity 72. The body comprises a bottom 73 which is traversed at its center by a passage of son 74. The outline of the inner cavity 72 defines a shoulder 75. The surface of the shoulder 75 is traversed by two diametrically opposed threaded holes 77 (only one of these threaded holes 77 is shown on FIG. figure 7 ). Two diametrically opposed hollow grooves 76 are formed inside the internal cavity 72.

A floating element 80 is mounted to move in translation inside the internal cavity 72. This floating element 80, which is illustrated in FIG. figure 8 , comprises a plate 81 having two rectilinear edges 82 parallel to each other. The two rectilinear edges 82 are connected at each end by curvilinear edges 83 having a radius of curvature slightly less than the radius of the internal cavity 72 of the floating element 80. The floating element 80 comprises two projecting grooves 84 which extend away from each other along the curvilinear edges 83. These projecting grooves 84 are provided to cooperate with the hollow grooves 76 of the wall housing. The floating element 80 is traversed by two holes 85 aligned along an axis passing through the two protruding grooves 84, and by an offset hole 86. It comprises housings 88 for magnetic attraction means. It has at its center an axis portion 87. The floating element 80 can thus be inserted inside the inner cavity 72 in which it is mounted to move in translation along the axis of the grooves 76, 84.

The inner cavity 72 is closed by means of a cover 90 illustrated in FIG. figure 9 . This cover 90 has a diameter such that it can be inserted inside the wall housing until it abuts against the surface of the shoulder 75. It is traversed by lights 91, and holes 92, 93 as well as by screw passages 94 formed at its periphery. This cover 90 is intended to be fitted against the surface of the shoulder 75 in such a way that the holes 92 coincide with the holes 85, that the hole 93 coincides with the hole 86, and that the screw passages 94 coincide with the holes threaded 77.

The assembly of a wall box according to the invention is carried out in the following manner.

Magnetic attraction means, comprising for example magnets 100, are inserted into the housings 88. Contacts 101 are forced into the holes 85 and 86 of the floating element 80 in such a manner that they are flush with each other. the front surface 102 of the floating element 80. A compression spring 103 is mounted along the axis portion 87. The floating element 80 is inserted inside the interior cavity 72 in such a way that the grooves 84 and 76 cooperate with each other. The cover 90 is then inserted into the body of the wall housing 70 until it abuts against the surface of the shoulder 75 and so that the holes 92 and 85 coincide and the holes 93 and 86 coincide. . The assembly is held by means of screws (not shown) which pass through the passages 94 of the cover 90 and are housed in the Tapped holes 77 of the body of the wall box 70. The floating element 80 then occupies an electrical isolation position in which the contacts 100 are remote from the cover 90. It is held in this position under the effect of the compression spring 103.

The installation of the connection system according to this second embodiment is obtained in the following manner.

A cylindrical hole is formed in a wall of a building. Electrical wires are pulled from the electrical panel of the electrical network of this building into this hole. These wires are passed through the passage of wires 74 formed in the bottom of the body of the wall box 70. The phase wires are connected to the contacts 101 of the holes 85 and the ground wire is connected to the contact 101 of the hole 86. floating element 80 is inserted into the wall housing 70. This is closed by the cover 90. The wall housing 70 is then inserted inside the cylindrical hole of the wall wall. It is secured in a conventional manner by means of pins 104 and screws 105 respectively inserted into housings 106 and holes 107 formed for this purpose in the body of the wall housing 70.

The floating element 80 is held under the effect of the compression spring 103 in its electrical insulation position in which the contacts 101 are remote from the cover 90 and therefore difficult to access from outside the wall box 70.

A wall socket can then cooperate with the wall box 70. For this, its second extrusion 25 is inserted into the body of the wall box 70 above the cover 90. The magnets 100 and 60 then act against the effect of the compression spring 103 on the floating element 80 so that it is placed in an electrical connection position, in which the contacts 101 bear against the cover 80. The pads 61 are remote from the contacts 101. The wall outlet is maintained in place in the wall box under the effect of magnetic attraction means. The insertion of the wall socket in the wall box does not require the exercise of any effort of depression due to the magnetic attraction generated by the magnets.

When no mobile socket cooperates with the wall socket, the player 40 is held in abutment against the cover 50 under the effect of the spring 63 so that it occupies a protective position in which the pads 61 are remote from the contacts 101. The player 40 then drives no electric current. Thus, if a person introduces an object into the wall outlet through the holes 53 of the cover 50, this object comes into contact with the player 40 which does not conduct any electric current, which avoids any risk of electrocution.

To connect an electrical equipment to the electrical network of the building, a mobile socket 10 connected by an electric wire 14 to this device must cooperate with the wall socket.

For this, the contacts 12 of the mobile socket 10 are inserted inside the holes 53 of the cover 50. At the same time, the axis 62 enters the bore 13 of the mobile socket 10. The contacts 12 comes into contact with the player 40. They act on the player 40 against the effect of the spring 63 so as to gradually place the player 40 in a contact position in which the pads 61 are pressed against the contacts 101 of the wall housing 70.

The electrical connection is established and electrical current passes from the electrical network of the building to the electrical apparatus connected to the mobile socket 10.

When the mobile socket 10 is disconnected from the wall socket, the player automatically resumes its protective position under the effect of the spring 63.

When a user wants to momentarily remove the wall outlet, for example to clean it, it releases it from the wall box 70 by pulling it through the groove 28. The player 80 automatically resumes its electrical isolation position in which the contacts 101 are at the bottom of the wall housing 70 and are difficult to access from outside the latter. The wall outlet does not conduct electrical power and can be cleaned safely. Any risk of electrocution is thus limited.

This embodiment makes it possible to prevent the wall box from tearing out due to repeated interlocking of the mobile socket.

7.4. Example of an adapter according to the invention

We present in relation with the figure 11 an adapter adapted to be connected to the conventional plug of an electrical appliance so that it can be connected to a connection system according to the invention.

Such an adapter comprises a base 110 traversed by a passage 111 for cooperating with the bore 13 connected to the ground wire of a conventional plug. It carries two contacts 112 inside which are intended to be inserted contacts 12 of this plug. A conventional plug cooperating in this way with an adapter can be connected to a wall socket of a system according to the invention.

7.5. Other features and benefits

The housing 20, the player 40, the cover 50, the wall housing 70, the floating element 80, and the cover 90 are made of a material that does not conduct the current, such as for example a plastic material.

In a variant, the wall socket used may be of the conventional type, that is to say not include a mobile player between a contact position and a protective position. The wall socket will then always conduct the current, regardless of the connection of a mobile socket, as soon as it cooperates with the wall box. This configuration makes it possible to securely disconnect the wall socket from the wallbox, yet offering a lower level of security.

In variants, dominoes or contacts 101 may include double-notch entries for connecting two son to connect in series several connection systems according to the invention.

The electrical son may be connected to a connection system according to the invention may have different sections, varying for example from 1.2 to 6 mm ² , depending on their use. The size of the dominoes and contacts 101 as well as that of the wall boxes will be chosen so as to allow the connection of son of variable sections.

In one variant, the polarity of the magnetic attraction means of the mobile socket, the wall socket and, if appropriate, the wall box will be chosen from such that they provide a keying function. It is not possible to connect the mobile socket, the wall socket and if necessary the wall box in an unsuitable way.

A connection system according to the invention can be implemented inside a building, including in damp rooms, as well as outdoors.

The implementation of a technique according to the invention has the advantage of preventing access to the electrical son by the user.

In a variant, a mobile socket according to the invention may be directly integrated in the frame of an electrical apparatus intended to be secured to a wall (for example a wall lamp, a bulb, a luminaire, an electric radiator, an oven. ..).

In a variant, several wall outlets and if necessary wall boxes can be directly integrated in a complaint to which it will be possible to connect several mobile plugs or electrical devices.

According to another variant, the magnetic attraction means of the wall socket or, as the case may be, of the wall box may be controlled remotely, for example by means of a switch or a remote control, to move the player or the element floating and cut the power supply of the connection system while a mobile socket is inserted. Thus, when a piece of equipment such as a television is connected and in standby, the power supply of the connection system can be stopped without disconnecting this equipment. This helps to reduce the consumption of electrical energy and is conducive to the preservation of the environment.

In a variant, the cover 50 may have a female thread all along its periphery intended to cooperate with a tapping formed at the periphery of the fourth extrusion 27 of the housing 20. In this way, the cover 50 will be secured to the housing 20. screwing on the housing 20 without using screws. This implementation has the advantage of preventing the cover 50 from deforming after being secured to the housing 20.

Claims (10)

Electrical connection system comprising a wall socket and a mobile socket (10) intended to be connected to an electrical equipment and adapted to cooperate with said wall socket,
characterized in that said wall outlet comprises: - A closed hollow housing (50) intended to be secured to a wall wall and to be connected to power supply son; - A walkman (40) movably mounted within said housing (50) between a contact position in which it is in electrical contact with said power supply wires and a protective position in which it is not in electrical contact. with said power wires; said player (40) being in electrical contact with said movable socket (10) and occupying said contact position when said movable socket (10) cooperates with said wall socket, and said protection position when said mobile socket (10) does not cooperate with said wall socket. System according to claim 1, characterized in that said housing (20) houses first elastic return means (63) which act on said player (40) to maintain it in said protective position. System according to claim 1 or 2, characterized in that said housing (20) has first guide means (30) of complementary shape second guide means (44) formed on said walkman (40). System according to any one of claims 1 to 3, characterized in that said housing (20) houses an axis (62) along which said walkman (40) is mounted to move in translation, said return means comprise a compression spring (63) mounted on said axis (62) between the bottom (23) of said housing (20) and said sliding element (40). System according to any one of claims 1 to 4, characterized in that said hollow housing (20) is closed by a cover (50), the bottom (23) of said housing (20) being traversed by at least two holes (29). ) intended to coincide with at least two contactors intended to be put in contact with said wires power supply, said cover (50) being traversed by at least two holes (53) coinciding with said contactors, said player (40) comprising at least two pads (61), said pads (61) bearing against said contactors when said player is in the position of contact and are remote from said contactors when said player is in the protective position. System according to any one of claims 1 to 5, characterized in that the bottom (23) of said housing (20) is traversed by three holes (29, 34) provided to coincide with three contactors, one of said contactors being intended to be connected to the ground, and in that said axis (62) is in contact with said contactor connected to the Earth and protrudes outside said housing (20) through said cover (50). System according to any one of claims 1 to 6, characterized in that said movable plug and said cover (50) and / or said housing (20) comprise magnetic attraction means (61, 64). System according to any one of claims 1 to 7, characterized in that it comprises a wall box (70) intended to be secured to said wall wall and in that said wall socket is intended to cooperate with said wall box (70). ) removably, said wall housing (70) housing a floating element (80) to be connected to said power supply wires, said floating element (80) being movable between an electrical isolation position in which it is located the bottom of said wallbox (70), and an electrical connection position, taken when said wall socket cooperates with said wallbox (70), wherein said floating element (80) is at the front of said wallbox (70) whereby an electrical connection between said slider (40) and said floating element (80) can be established when said slider (40) is in said contact position. A system according to claim 8, characterized in that said wall housing (70) comprises second elastic return means (103) which act on said floating element (80) to maintain it in said electrical insulation position. System according to claim 9, characterized in that said floating element (80) comprises magnetic attraction means (100).

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