FR3080494A1 - CONNECTING DEVICE FOR ELECTRICAL APPARATUS, ELECTRICAL APPARATUS COMPRISING SAID CONNECTING DEVICE AND ASSOCIATED DISTRIBUTION BOX - Google Patents

Abstract

The present invention relates to a device for connecting a first conductor (1) to a first conductive terminal of an electrical apparatus (3), configured to be powered at a first electrical potential, comprising: - first clamping means (4) the first conductor (1) in contact with the first conductive terminal, - a single operating member (5) for actuating the first clamping means (4), - a connecting cage (6) comprising in its internal volume at least the first conductive terminal and being movable relative to the first conductive terminal, characterized in that it further comprises: at least second clamping means (9) of a second conductor (10) at a second terminal conductor of the electrical apparatus (3), configured to be powered at a second electrical potential different from the first electrical potential.

Description

The present invention relates to the field of devices for connecting at least one conductor for an electrical appliance, the field of electrical appliances comprising such connection devices, as well as the field of distribution boxes comprising a connection bar connected to such connection devices.

In the tertiary or commercial field, the distribution boxes can comprise a connection bar fixed to the distribution box, preferably arranged vertically, and allowing the electrical connection of one or more modular electrical devices, for example of the type of differential circuit breakers. modular, to a source of electrical distribution, and more particularly, the connection of a conductive terminal of a phase line that includes each electrical appliance. In addition, a neutral bar is also provided in the distribution box and allows the connection of a cable of a neutral line that includes each electrical device. In order to facilitate the connection of the conductive terminal of the phase line of the electrical appliance to the connection bar of the distribution box, the electrical appliance generally comprises a connection device. This connection device comprises, in known manner, a connection cage movable relative to the single conductive terminal of the phase line of the electrical appliance and a clamping screw allowing the displacement of the connection cage, in order to effect the clamping connection of a conductive end of a conductor of the connection bar to the conductive terminal of the phase line. However, at present, on the one hand, the connection of the conductive terminal of the phase line of the electrical appliance to the conductor of the connection bar, and on the other hand, the connection of the line cable of neutral from the electrical appliance to the neutral bar, are carried out in two successive stages. The implementation of these two steps extends the installation time. Furthermore, the wiring of the neutral lines of electrical devices on the neutral bar has the drawback of being tedious and has the other drawback of increasing the bulk within the distribution box.

-2The present invention aims to overcome these drawbacks by providing a solution to facilitate the connection of an electrical device to at least two conductors may have different electrical potentials.

The invention will be better understood from the following description, which relates to several preferred embodiments, given by way of nonlimiting examples, and explained with reference to the appended schematic drawings, in which:

Figures 1 to 4 are perspective views of the connection device according to the invention in a first embodiment, Figure 5 is a perspective and exploded view of the connection device according to the invention in the first embodiment , Figures 6 and 7 are perspective views of a first isolation member of the connection device according to the invention in the first embodiment, Figure 8 is a perspective view of a second clamping element of the connection device according to the invention in the first embodiment, FIG. 9 is a perspective view of a connection cage of the connection device according to the invention in the first embodiment, FIG. 10 is a view in perspective of a first clamping element and an operating member of the connection device according to the invention in the first embodiment, FIG. 11 is a perspective view tive of a first conductive terminal for electrical appliance of the connection device according to the invention in the first embodiment, FIG. 12 is a perspective view of a second conductive terminal for electrical appliance of the connection device according to the invention in the first embodiment, FIGS. 13A and 13B are perspective views of a connection device according to the invention, in the first embodiment, to which a first conductor and a second conductor are connected, in a tight position first and second clamping means, FIG. 14 is a perspective view of the electrical appliance, the casing of which is partially shown, comprising the device

-3 connection according to the invention, in the first embodiment, as well as the first conductive terminal and the second conductive terminal, Figure 15 is a perspective view of the electrical device of Figure 14 showing the connection device according the invention, in the first embodiment, to which the first conductor and the second conductor are connected, in the loosened position of the first and second clamping means, FIG. 16 is a perspective view of the electrical appliance in FIG. 14 showing the connection device according to the invention, in the first embodiment, to which the first conductor and the second conductor are connected, in a clamped position of the first and second clamping means, FIGS. 17 to 18 are views in perspective of the connection device according to the invention in a second embodiment, FIG. 19 is a perspective and exploded view of the connection device according to the invention in the second embodiment, FIG. 20 is a perspective view of the connection device according to the invention in a third embodiment, and FIG. 21 is a perspective and exploded view of the connection device according to the invention in the third embodiment.

The device for connecting at least one first conductor 1 to a first conductive terminal 2 of an electrical appliance 3, configured to be supplied with a first electrical potential, comprises:

first clamping means 4 for the first conductor 1 in contact with the first conductive terminal 2,

a single operating member 5 for actuating the first clamping means 4,

- At least one connection cage 6 comprising in its internal volume at least the first conductive terminal 2 and being movable relative to the first conductive terminal 2, the first clamping means 4 comprising at least a first clamping element 7 mechanically connected to the operating member 5 and comprising a clamping portion 7a disposed in the internal volume of the connection cage 6, between the connection cage 6 and the first conductive terminal 2,

The first conductive terminal 2 and the clamping portion 7a of the first clamping element 7 delimiting at least in part a first housing for receiving the first conductor 1.

According to the invention, the device is characterized in that it further comprises:

- At least second clamping means 9 of a second conductor 10 to a second conductive terminal 11 of the electrical appliance 3, configured to be supplied with a second electrical potential different from the first electrical potential, in that the member maneuver 5 is suitable and intended to actuate the second clamping means 9, in that said at least one connection cage 6 comprises in its internal volume the second conductive terminal 11, and is movable relatively, on the one hand, to the first conductive terminal 2 and, on the other hand, relative to the second conductive terminal 11,

- At least a first isolation member 12 of electrical insulating material interposed between the first conductive terminal 2 and the second conductive terminal 11 in the internal volume of the connection cage 6 and fixed to the first conductive terminal 2 and / or the second conductive terminal 11, the second clamping means 9 comprising at least one second clamping element 13 of electrical insulating material disposed in the internal volume of the connection cage 6, between the connection cage 6 and the second conductive terminal 11, the second clamping element 13 being movable relative to the second conductive terminal 11, the second conductive terminal 11 and the second clamping element 13 delimiting a second housing 14 for receiving the second conductor 10.

Advantageously, this connection device allows in a single operation to connect to a connection cage 6, which is preferably unique, at least on the one hand, a first conductor 1 to the first conductive terminal 2, which is suitable and intended to be at a first electrical potential and, on the other hand, a second conductor 10 to the second conductive terminal 11, which is suitable and intended to be at a second electrical potential, different from the first electrical potential. This results in a saving of time during the operation of

-5 connection of the electrical device 3 provided with the connection device according to the invention at least to the first conductor 1 and to the second conductor 10 which may have different electrical potentials. This result is made possible in particular thanks to the first isolation member 12 which makes it possible to electrically isolate the first conductive terminal 2 from the second conductive terminal 11.

According to a first embodiment of the invention illustrated in FIGS. 1 to 9, 13A to 16, the second clamping element 13 made of electrically insulating material is fixed to the connection cage 6 by a fixing member 18.

This configuration is particularly suitable for the connection of two conductors 1, 10, namely the first conductor 1 and the second conductor 10 provided to present electrical potentials which may be different. This result is made possible thanks to the first isolation member 12 which makes it possible to electrically isolate at least the first conductive terminal 2 from the second conductive terminal 11, and thanks to the second clamping element 13 made of electrical insulating material which allows at least part of electrically isolating the second conductive terminal 11 from the connection cage 6. For example, the first conductive terminal 2 may correspond to a terminal of a neutral line of the electrical appliance 3 and the second conductive terminal 11 may correspond to a terminal of a phase line of the electrical appliance 3. Alternatively and without limitation, the first conductive terminal 2 may correspond to a terminal of a first phase line of the electrical appliance 3 and the second terminal conductive 11 may correspond to a terminal of a second phase line of the electrical appliance 3.

To connect the first and second conductors 1, 10, the first conductor 1 and the second conductor 10 are first of all inserted in the first reception housing 8 and in the second reception housing 14, respectively, and the first and second clamping means 4, 9 are in the released position (Figure 15). Then, the operating member 5 is operated, so that the clamping portion 7a of the first clamping element 7 is moved in the direction of the first conductive terminal 2 and that it is pressed against the first conductor 1. As a result, the latter is in contact with the first conductive terminal 2, and the first clamping means 4 are in the clamped position (FIGS. 13A, 13B and 16). Furthermore, when the organ of

-6maneuver 5 is maneuvered, the connection cage 6 is set in motion relative to the first and second conductive terminals 2,

11. In particular, it follows that the second clamping element 13 is moved in the direction of the second conductive terminal 11 and that it is pressed against the second conductor 10. As a result, the latter finds itself in contact with the second conductive terminal 11 and the second clamping means 9 are in the clamped position (Figures 13 A, 13B and 16).

According to a second embodiment of the invention illustrated in FIGS. 17 to 19, the second clamping means 9 are, moreover, suitable and intended for clamping a third conductor (not shown) to a third conductive terminal 30 of the electrical appliance 3, configured to be supplied with a third electrical potential different from the first electrical potential and / or from the second electrical potential, said at least one connection cage 6 comprises in its internal volume the third conductive terminal 30 which is fixed relatively to said connection cage 6, the second clamping element 13 being slidably mounted relative to said connection cage 6, between the second conductive terminal 11 and the third conductive terminal 30, and in that it further comprises a second member insulation 31 of electrical insulating material, inserted between the third conductive terminal 30 and the connection cage 6 da ns the internal volume of the connection cage 6, and fixed to the connection cage 6, the third conductive terminal 30 and the second clamping element 13 delimiting a third housing 32 for receiving the third conductor.

This configuration is particularly suitable for the connection of three conductors 1, 10, namely the first conductor 1, the second conductor 10 and a third conductor intended to present electrical potentials which may be different. For example, the first conductive terminal 2 may correspond to a terminal of a neutral line of the electrical appliance 3, the second conductive terminal 11 may correspond to a terminal of a first phase line of the electrical appliance 3, the third conductive terminal 30 may correspond to a terminal of a second phase line of the electrical appliance 3. Alternatively, for example, the first conductive terminal 2 may correspond

-7 to a terminal of a first phase line of the electrical appliance 3, the second conductive terminal 11 may correspond to a terminal of a second phase line of the electrical appliance 3, the third conductive terminal 30 may correspond to a terminal of a third phase line of the electrical appliance 3.

This connection device allows in a single operation to connect to the connection cage 6, which is preferably unique, a first conductor 1 to the first conductive terminal 2, which is suitable and intended to be at the first electrical potential, a second conductor 10 at the second conductive terminal 11, which is suitable and intended to be at the second electrical potential, and a third conductor at the third conductive terminal 30, which is suitable and intended to be at a third electrical potential different from the first electrical potential and / or the second electrical potential. This result is made possible by the first isolation member 12 which makes it possible to electrically isolate at least the first conductive terminal 2 from the second conductive terminal 11, thanks to the second clamping element 13 made of electrical insulating material which makes it possible to electrically isolate the second conductive terminal 11 of the third conductive terminal 30 and thanks to the second isolation member 31 which makes it possible to electrically isolate, the third conductive terminal 30 from the connection cage 6.

To connect the first, second, and third conductors 1, 10, the first conductor 1, the second conductor 10 and the third conductor are first of all inserted in the first reception housing 8, in the second reception housing, respectively. 14 and in the third receiving housing 32, and the first and second clamping means 4, 9 are in the released position. Then, the operating member 5 is operated, so that the clamping portion 7a of the first clamping element 7 is moved in the direction of the first conductive terminal 2 and that it is pressed against the first conductor 1. As a result, the latter is in contact with the first conductive terminal 2, and the first clamping means 4 are in the clamped position. Furthermore, when the operating member 5 is operated, the connection cage 6 is set in motion relative to the first and second conductive terminals 2, 11. The third conductive terminal 30 is, in turn, also set in motion relative to the first and second conductive terminals 2,

-811. In particular, it follows that the third conductive terminal 30 is moved in the direction of the second clamping element 13. As the third conductor is inserted in the third receiving housing 32, the second clamping element 13 is in turn moved in the direction of the second conductive terminal 11, so that it is pressed against both the second conductor 10 and the third conductor. As a result, the latter are in contact respectively with the second conductive terminal 11 and the third conductive terminal 30, the second clamping means 9 being in the clamped position.

According to a third embodiment of the invention illustrated in FIGS. 20 and 21, the device further comprises:

- at least third clamping means 33 of a third conductor to a third conductive terminal 30 of the electrical appliance 3, configured to be supplied with a third electrical potential different from the first electrical potential and / or the second electrical potential, l the operating member 5 is suitable and intended to actuate the third clamping means 33, the third clamping means 33 comprising at least one third clamping element 34 made of electrical insulating material, disposed in the internal volume of the connection cage 6, said at least one connection cage 6 further comprises, in its internal volume, the third conductive terminal 30 fixed to the second clamping element 13, the second clamping element 13, to which the third conductive terminal 30 is fixed, being slidably mounted relative to said connection cage 6, between the second conductive terminal 11 and the third service element rage 34, the third conductive terminal 30 and the third clamping element 34 delimiting a third housing 32 for receiving the third conductor, the third clamping means 33 are, moreover, suitable and intended for clamping a fourth conductor (not shown ) a fourth conductive terminal 35 of the electrical appliance 3, configured to be supplied with a fourth electrical potential different from the first electrical potential and / or the second electrical potential and / or the third electrical potential,

Said at least one connection cage 6 comprises, in its internal volume, the fourth conductive terminal 35, which is fixed relative to said connection cage 6, the third clamping element 34 being slidably mounted relative to said connection cage 6, between the third conductive terminal 30 and the fourth conductive terminal 35, and in that it further comprises a second isolation member 31 of electrical insulating material interposed between the fourth conductive terminal 35 and the connection cage 6 in the internal volume of the connection cage 6 and fixed to the connection cage 6, the fourth conductive terminal 35 and the third clamping element 34 delimiting a fourth housing 36 for receiving the fourth conductor.

This configuration is particularly suitable for the connection of four conductors 1, 10, namely the first conductor 1, the second conductor 10, a third conductor and a fourth conductor intended to present electrical potentials which may be different. For example, the first conductive terminal 2 may correspond to a terminal of a neutral line of the electrical appliance 3, the second conductive terminal 11 may correspond to a terminal of a first phase line of the electrical appliance 3, the third conductive terminal 30 may correspond to a terminal of a second phase line of the electrical appliance 3, and the fourth conductive terminal 35 may correspond to a terminal of a third phase line of the electrical appliance 3.

This connection device allows in a single operation to connect to the connection cage 6, which is preferably unique, a first conductor 1 to the first conductive terminal 2, which is suitable and intended to be at the first electrical potential, a second conductor 10 to the second conductive terminal 11, which is suitable and intended to be at the second electrical potential, a third conductor to the third conductive terminal 30, which is suitable and intended to be to a third electrical potential, a fourth conductor to the fourth conductive terminal 35, which is suitable and intended to be at a fourth electrical potential, different from the first electrical potential and / or the second electrical potential and / or the third electrical potential. This result is made possible by the first isolation member 12 which makes it possible to electrically isolate at least the first

- 10 conductive terminal 2 of the second conductive terminal 11, thanks to the second clamping element 13 of electrical insulating material which makes it possible to electrically isolate the second conductive terminal 11 from the third conductive terminal 30, thanks to the third clamping element 34 of insulating material electric which makes it possible to electrically isolate the third conductive terminal 30 from the fourth conductive terminal 35, and thanks to the second isolation member 31 which makes it possible to electrically isolate, the fourth conductive terminal 35 from the connection cage 6.

To connect the first, second, third and fourth conductors 1, 10, the first conductor 1, the second conductor 10, the third conductor and the fourth conductor are first of all inserted in the first receiving housing 8, in the second receiving housing 14, in the third receiving housing 32 and in the fourth receiving housing 36, and the first, second and third clamping means 4, 9, 33 are in the released position. Then, the operating member 5 is operated, so that the clamping portion 7a of the first clamping element 7 is moved in the direction of the first conductive terminal 2 and that it is pressed against the first conductor 1. As a result, the latter is in contact with the first conductive terminal 2 and the first clamping means 4 are in the clamped position. Furthermore, when the operating member 5 is operated, the connection cage 6 is set in motion relative to the first and second conductive terminals 2, 11. The fourth conductive terminal 35 is, in turn, also set in motion relative to the first and second conductive terminals 2, 11. In particular, it follows that the fourth conductive terminal 35 is moved in the direction of the third clamping element 34. As the fourth conductor is inserted in the fourth receiving housing 36, and the third conductor is inserted into the third receiving housing 32, the third clamping element 34 is in turn displaced in the direction of the third conductive terminal 30, and the second clamping element 13 is in turn displaced in the direction of the second conductive terminal 11 , so that the third clamping element 34 is pressed against both the fourth conductor and the third conductor and the second clamping element 13 is pressed against the second conductor 10. As a result, the second conductor 10, the third conductor and the fourth conductor

- 11 are in contact respectively with the second conductive terminal 11, the third conductive terminal 30 and the fourth conductive terminal 35 and the second and third clamping means 9, 33 are in the clamped position.

According to a non-limiting possibility of the first, second and third embodiments, the first isolation member 12 has a U or H shape and comprises at least a first branch 19 and a second branch 20 substantially parallel to one another and a base 21 separating the first branch 19 and the second branch 20, said base 21 receiving a fixing face of the first conductive terminal 2 and the first branch 19 and the second branch 20 extending around the second conductive terminal 11.

Advantageously, the base 21 allows at least the fixing of the first conductive terminal 2. In addition, the first branch 19 and the second branch 20 make it possible to isolate the second conductive terminal 11 from the connection cage 6.

In the first embodiment, the base 21 makes it possible to fix the first conductive terminal 2 and the second conductive terminal 11. In this case, the first isolation member 12 preferably has an inverted U shape (Figures 6 and 7).

In the second and third embodiments, the base 21 makes it possible to fix the first conductive terminal 2 and the second conductive terminal 11. In this case, the first isolation member 12 preferably has an H shape. Then, the first member insulation 12 may have a third branch 19 'and a fourth branch 20' extending around the first conductive terminal 2 (Figures 17 to 21). The third branch 19 ’and the fourth branch 20’ allow the first conductive terminal 2 to be isolated from the connection cage 6. Thus, the first isolation member 12 makes it possible, in addition, to isolate the first conductive terminal 2.

Preferably, in the first embodiment, the base 21 of the first isolation member 12 comprises fixing means 22 of the first conductive terminal 2.

Preferably, the fixing means 22 can consist of four protruding studs from the base 21. The base 21 can be in the shape of a parallelepiped and the four studs can be located at the four corners of the parallelepiped (FIGS. 6 and 7).

- 12So, the first conductive terminal 2 may include four cutouts 2a of complementary shape to the studs (Figures 5 and 11).

Preferably, in the first, second and third embodiments, the first branch 19 and the second branch 20 respectively comprise a first wing 23 and a second wing 24, said first and second wings 23, 24 being respectively projecting from an external wall 25 of the first branch 19 and of the second branch 20, and resting on a thickness 26 of two lateral faces 6a, 6b which are substantially parallel to each other that the connection cage 6 comprises.

Advantageously, the first wing 23 and the second wing 24 are provided to respect the isolation distances.

Preferably, in the second and third embodiments, the wings 23, 24 extend to the third and fourth branches 19 ’, 20’ (Figures 19 and 21).

According to a non-limiting possibility of the first embodiment, the second conductive terminal 11 comprises a U-shaped portion 15 delimiting a nesting area 16 and the second clamping element 13 comprises a fitting portion 17 complementary to the area socket 16 to cooperate by fitting with said fitting zone 16 and to delimit the second receiving housing 14 (Figures 3 to 8).

In this configuration, the second U-shaped conductive terminal 11 can be fitted between the first and second branches 19, 20 of the first isolation member 12 and be fixed there. In addition, the interlocking zone 16 forms an interaction interface with the second conductor 10. Furthermore, the interlocking portion 17 of the second clamping element 13 can advantageously be introduced at the level of the interlocking zone 16 to tighten the second conductor 10.

Preferably, in the first, second and third embodiments, the second conductive terminal 11 further comprises a fixing portion 11e intended to be fixedly mounted in the electrical appliance 3.

Preferably, in the first, second and third embodiments, the connection cage 6 comprises two lateral faces 6a, 6b which are substantially parallel to each other, spaced from each other by a distance DI less than the value of a module (Figures 9, 19 and 21).

- 13 Thus, the connection device can advantageously be compatible with electrical devices 3 having a width L1 of a module.

Preferably, the second clamping element 13 and / or the first isolating member 12 and / or the second isolating member 31 and / or the third clamping member 34 are made of electrical insulating material and resistant to finishing and compression, chosen from: ceramic, wood, a thermosetting polymer, preferably polyoxybenzylmethylene glycol anhydride.

Advantageously, this type of dielectric material has both electrical insulation properties and sufficient mechanical resistance to compression to avoid fining during the tightening of the first and second conductors 1, 10, and, where appropriate, of the third and / or fourth driver.

Preferably in the first, second and third embodiments, the operating member 5 may consist of a screw comprising, at a first end, a head 5 ′, and a threaded portion (not shown) (Figures 1,2, 3 , 5, 10, 18 to 21).

The first clamping element 7 can have a U-shaped jumper shape comprising two branches 7a, 7b. A first branch forms the clamping portion 7a. The first branch 7a can include a passage 7c.

The screw can pass through the passage 7c, the head 5 'forming a stop and a second free end 5 ”can rest at the level of the first branch 7a.

Furthermore, the connection cage 6 may include an upper face 6c and a lower face 6e which are arranged between the lateral faces 6a, 6b, facing one another and are substantially parallel to one another.

At the upper face 6c can be provided a threaded orifice 6d cooperating with the threaded portion of the screw. The first branch 7a is arranged in the volume of the connection cage 6 under the upper face 6c.

Preferably, in the first embodiment, the second clamping element 13 made of electrical insulating material is fixed to the lower face 6e of the connection cage 6. More particularly, the lower face 6e has an orifice 6f. The fastener 18 is

- 14constituted preferably by a protruding stud inserted in the orifice 6f (FIG. 4).

Preferably, in the second embodiment, the second clamping element 13 made of electrical insulating material may comprise a first interaction face 13a with the second conductor 10 and a second interaction face (not shown) with the third conductor (Figures 17, 18 and 19).

Preferably, in the third embodiment, the second clamping element 13 made of electrical insulating material may comprise an interaction face 13a with the second conductor 10 and a fixing face (not shown) with a fixing face 30a of the third conductive terminal 30 described below (Figures 20 and 21).

Preferably, in the third embodiment, the third clamping element 34 made of electrical insulating material can comprise a first interaction face 34a with the third conductor and a second interaction face (not shown) with the fourth conductor.

Preferably, in the second and third embodiments, the second clamping element 13 and / or the third clamping element 34 may have a general shape of a rectangular parallelepiped. In addition, the second clamping element 13 and / or the third clamping element 34 may comprise first and second wings 13b, 34b projecting respectively from a side face 13c, 34c distinct from the interaction faces 13a, 34a and / or fixing faces and arranged opposite the thickness 26 of the connection cage 6.

These wings 13b, 34b are provided to slide relative to the thickness 26 of the connection cage 6 and to respect the isolation distances.

Preferably, in the second and third embodiments, the second isolation member 31 has a U shape and includes a first branch 31b and a second branch 31c substantially parallel to each other and a base 31a separating the first branch 31b and the second branch 31c.

Advantageously, in the second embodiment, this configuration allows the second isolation member 31 to electrically isolate the third conductive terminal 30 from the cage.

- 15connection 6, since the first and second branches 31b, 31c extend around the third conductive terminal 30.

Advantageously, in the third embodiment, this configuration allows the second isolation member 31 to electrically isolate the third conductive terminal 30 from the connection cage 6 and the fourth conductive terminal 35 from the connection cage 6, since the first and second branches 31b, 31c extend around the third conductive terminal 30 and the fourth conductive terminal 35.

Preferably, in the second and third embodiments, the second isolation member 31 may include first and second wings 31d projecting from the first branch 31b and from the second branch 31c and arranged opposite the thickness 26 of the cage connection 6.

These wings 31d are provided to respect the isolation distances.

Preferably, in the first, second and third embodiments, the first conductive terminal 2 comprises an interaction face 2b suitable and intended to come into contact with the first conductor 1 and situated opposite the mounting face mounted on the base 21. Preferably, the first conductive terminal 2 further comprises a fixing portion 2c intended to be fixedly mounted in the electrical appliance 3 (Figures 1, 2, 5, 11, 14, 17, 19 and 21 ).

Preferably in the second and third embodiments, the second conductive terminal 11 comprises an interaction face (not shown) suitable and intended to come into contact with the second conductor 10 and situated opposite a fixing face 11a mounted on the base 21. Preferably, the second conductive terminal 11 further comprises an attachment portion 11e intended to be fixedly mounted in the electrical appliance 3 (Figures 17 to 21).

Preferably in the second embodiment, the third conductive terminal 30 comprises an interaction face 30b suitable and intended to come into contact with the third conductor and situated opposite a fixing face (not shown) mounted on the base 31a of the second isolation member 31. Preferably, the third conductive terminal 30 further comprises a fixing portion 30c intended to be mounted movable relative to the electrical appliance 3 (Figures 17 and 18).

Preferably in the third embodiment, the third conductive terminal 30 comprises an interaction face (not shown) suitable and intended to come into contact with the third conductor and situated opposite a fixing face 30a mounted on the second clamping element 13. Preferably, the third conductive terminal 30 further comprises a fixing portion 30c intended to be mounted movable relative to the electrical appliance 3 (Figure 21).

Preferably in the third embodiment, the fourth conductive terminal 35 comprises an interaction face 35b suitable and intended to come into contact with the fourth conductor and situated opposite a fixing face (not shown) mounted on the base 31a of the second isolation member 31. Preferably, the third conductive terminal 30 further comprises a fixing portion 35c intended to be mounted movable relative to the electrical appliance 3 (Figures 20 and 21).

Preferably, the fixing portion 2c, lie, 30c, 35c extends at least partially outside the volume of the connection cage 6.

The invention also relates to an electrical appliance 3 comprising at least a first conductive terminal 2, configured to be supplied with a first electrical potential and at least a second conductive terminal 11, configured to be supplied with a second electrical potential different from the first electrical potential .

According to the invention, the electrical appliance 3 is characterized in that it comprises a connection device as described above.

The electrical device 3 may consist of a contactor, a switch, an electrical outlet, an electrical cut-off device.

The electrical breaking device 3 may consist of a circuit breaker or a differential circuit breaker or a differential switch.

Preferably, the electrical appliance 3 is of the modular type and comprises an envelope 27 having a width L1 substantially equal to the width of a module.

The casing 27 has at least two passage openings 37 giving access to the first receiving housing 8 and to the second receiving housing 14 of the connection device according to the invention.

The invention also relates to an electrical distribution box (not shown) comprising a connection bar (not shown)

- 17fixed to the distribution box, preferably arranged vertically, to allow the electrical connection of one or more electrical devices 3 to an electrical distribution source.

According to the invention, the distribution box is characterized in that the connection bar comprises at least a first conductor 1 configured to be supplied with a first electrical potential and at least a second conductor 10 configured to be supplied with a second potential electric, and in that the distribution box comprises at least one connection device as described above, the first conductor 1 of the connection bar being at least partly inserted in the first receiving housing 8 of the connection device and the second conductor 10 of the connection bar being at least partially inserted into the second receiving housing 14 of the connection device.

Preferably, at least the second conductor 10 is retractable.

Of course, the invention is not limited to the embodiments described and shown in the accompanying drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

Claims (14)

1. Device for connecting at least one first conductor (1) to a first conductive terminal (2) of an electrical appliance (3), configured to be supplied with a first electrical potential, comprising: - first clamping means (4) of the first conductor (1) in contact with the first conductive terminal (2), - a single operating member (5) for actuating the first clamping means (4), - at least one connection cage (6) comprising in its internal volume at least the first conductive terminal (2) and being movable relative to the first conductive terminal (2), the first clamping means (4) comprising at least a first clamping element (7) mechanically connected to the operating member (5) and comprising a clamping portion (7a) disposed in the internal volume of the connection cage (6), between the connection cage (6) and the first conductive terminal (2), the first conductive terminal (2) and the clamping portion (7a) of the first clamping element (7) delimiting at least in part a first receiving housing (8) of the first conductor (1), device characterized in that it further comprises: - at least second clamping means (9) of a second conductor (10) to a second conductive terminal (11) of the electrical appliance (3), configured to be supplied with a second electrical potential different from the first electrical potential , in that the operating member (5) is suitable and intended to actuate the second clamping means (9), in that said at least one connection cage (6) comprises in its internal volume the second conductive terminal ( 11), and is movable relatively, on the one hand, to the first conductive terminal (2) and, on the other hand, relative to the second conductive terminal (11), - at least a first isolation member (12) of electrical insulating material interposed between the first conductive terminal (2) and the second conductive terminal (11) in the internal volume of the cage - 19 connection (6) and fixed to the first conductive terminal (2) and / or the second conductive terminal (11), the second clamping means (9) comprising at least one second clamping element (13) made of electrically insulating material arranged in the internal volume of the connection cage (6), between the connection cage (6) and the second conductive terminal (11), the second clamping element (13) being movable relative to the second conductive terminal (11), the second conductive terminal (11) and the second clamping element (13) delimiting a second receiving housing (14) of the second conductor (10). 2. Device according to claim 1, characterized in that the second clamping element (13) of electrically insulating material is fixed to the connection cage (6) by a fixing member (18). 3. Device according to claim 1, characterized in that the second clamping means (9) are, moreover, suitable and intended for clamping a third conductor to a third conductive terminal (30) of the electrical appliance (3 ), configured to be supplied with a third electrical potential different from the first electrical potential and / or from the second electrical potential, in that said at least one connection cage (6) comprises in its internal volume the third conductive terminal (30) which is fixed relative to said connection cage (6), the second clamping element (13) being slidably mounted relative to said connection cage (6), between the second conductive terminal (11) and the third conductive terminal (30) , and in that it further comprises a second isolation member (31) of electrical insulating material, interposed between the third conductive terminal (30) and the connection cage (6) in the v internal olume of the connection cage (6), and fixed to the connection cage (6), the third conductive terminal (30) and the second clamping element (13) delimiting a third housing for receiving (32) the third conductor . 4. Device according to claim 1, characterized in that it further comprises: At least third clamping means (33) of a third conductor to a third conductive terminal (30) of the electrical appliance (3), configured to be supplied with a third electrical potential different from the first electrical potential and / or the second electrical potential, in that the operating member (5) is suitable and intended to actuate the third clamping means (33), the third clamping means (33) comprising at least one third clamping element ( 34) made of electrical insulating material arranged in the internal volume of the connection cage (6), in that said at least one connection cage (6) further comprises, in its internal volume, the third conductive terminal (30) fixed to the second clamping element (13), the second clamping element (13), to which the third conductive terminal (30) is fixed, being slidably mounted relative to said connection cage (6), between the second terminal conductive (11) and the third clamping element (34), the third conductive terminal (30) and the third clamping element (34) delimiting a third receiving housing (32) of the third conductor, the third clamping means (33 ) are, moreover, suitable and intended for clamping a fourth conductor to a fourth conductive terminal (35) of the electrical appliance (3), configured to be supplied with a fourth electrical potential different from the first electrical potential and / or the second electrical potential and / or the third electrical potential, in that said at least one connection cage (6) comprises in its internal volume the fourth conductive terminal (35), which is fixed relative to said connection cage (6) , the third clamping element (34) being slidably mounted relative to said connection cage (6), between the third conductive terminal (30) and the fourth conductive terminal (35) , and in that it further comprises a second isolation member (31) made of electrically insulating material interposed between the fourth conductive terminal (35) and the connection cage (6) in the internal volume of the cage connection (6) and fixed to the connection cage (6), -21 the fourth conductive terminal (35) and the third clamping element (34) delimiting a fourth receiving housing (36) of the fourth conductor. 5. Device according to any one of claims 1 to 4, characterized in that the first isolation member (12) has a U or H shape and comprises at least a first branch (19) and a second branch ( 20) substantially parallel to each other and a base (21) separating the first branch (19) and the second branch (20), said base (21) receiving a fixing face of the first conductive terminal (2) and the first branch ( 19), and the second branch (20) extending around the second conductive terminal (11). 6. Device according to claim 5, characterized in that the base (21) of the first isolation member (12) comprises fixing means (22) of the first conductive terminal (2). 7. Device according to any one of claims 5 to 6, characterized in that the first branch (19) and the second branch (20) respectively comprise a first wing (23) and a second wing (24), said first and second wings (23, 24) projecting respectively from an outer wall (25) of the first branch (19) and the second branch (20) and resting on a thickness (26) of two lateral faces (6a, 6b) , substantially parallel to each other, which comprises the connection cage (6). 8. Device according to any one of claims 1 to 2, 5 to 7, characterized in that the second conductive terminal (11) comprises a U-shaped portion (15) delimiting an interlocking zone (16) and the second clamping element (13) comprises a fitting portion (17) complementary to the fitting area (16) to cooperate by fitting with said fitting area (16) and to delimit the second receiving housing (14) . 9. Device according to any one of claims 1 to 8, characterized in that the connection cage (6) comprises two lateral faces (6a, 6b) substantially parallel to one another distant from each other by a distance DI less than the value of a module. 10. Device according to any one of claims 1 to 9, characterized in that the second clamping element (13) and / or the first isolation member (12) and / or the second isolation member (31) and / or the third clamping element (34) are made of electrical insulating material and -22resistant to creep and compression, chosen from: ceramic, wood, a thermosetting polymer, preferably polyoxybenzylmethylene glycol anhydride. 11. An electrical appliance (3) comprising at least a first conductive terminal (2) configured to be supplied with a first electrical potential and at least a second conductive terminal (11) configured to be supplied with a second electrical potential different from the first electrical potential , characterized in that it comprises a connection device according to any one of claims 1 to 10. 12. Electrical device according to claim 11, characterized in that the electrical device (3) is of modular type and comprises an envelope (27) having a width L1 substantially equal to the width of a module. 13. Electrical distribution box comprising a connection bar fixed to the distribution box, preferably arranged vertically, to allow the electrical connection of one or more electrical devices (3) to a source of electrical distribution, characterized in that the connection bar comprises at least a first conductor (1), configured to be supplied with a first electrical potential and at least a second conductor (10), configured to be supplied with a second electrical potential, and in that the cabinet distribution comprises at least one connection device according to any one of claims 1 to 12, the first conductor (1) of the connection bar being at least partly inserted in the first receiving housing (8) of the connection device and the second conductor (10) of the connection bar being at least partly inserted in the second receiving housing (1 4) of the connection device. 14. Distribution box according to claim 13, characterized in that at least the second conductor (10) is retractable.