Device for supporting a luminaire intended to be installed on a wall provided with an electrical supply

Abstract

The invention relates to a device for supporting a luminaire intended to be installed on a wall provided with an electrical power supply. The support device comprises a base (10), a cover mounted on the base and at least one first electrical connector (30). The base comprises a bearing face configured to be brought into contact with the wall, a first fixing means configured to allow fixing by screwing of a threaded element without tools, an opening configured to allow the passage of first electrical wires (321) and a second electrical connector. The base also comprises a housing receiving at least one first electrical connector configured to connect the first electrical wires to second electrical wires (221) of an electrical cable (220) of the luminaire. The base also comprises a compartmentalized structure configured to adjust a length of the electrical cable by winding it around a housing guiding the electrical cable.Figure for abstract: Figure 5.

Description

Title of the invention: Device for supporting a luminaire intended to be installed on a wall provided with an electrical power supply Technical field

[0001] The present invention relates to the field of lighting and luminaires.

[0002] The subject of the present invention relates more particularly to a device for supporting a luminaire intended to be installed on a wall provided with an electrical power supply.

[0003] The subject of the present invention also relates to a luminaire intended to be installed on a wall using a support device.

[0004] By wall in the sense of the present invention, is meant throughout the following description any type of wall constituting a vertical or attic wall or a ceiling, the wall is for example made of solid or hollow brick, concrete block, cellular concrete, plasterboard, wood and wood derivatives or even stone.

[0005] The present invention will find numerous advantageous applications both for the occupants of a dwelling and for electricians or lighting engineers. Technological background

[0006] Many lighting installers, whether individuals such as occupants of a home or professionals such as electricians or lighting engineers, are faced with the installation of a lighting fixture on a wall or ceiling equipped with a power supply.

[0007] In a first installation case, the wall receiving the luminaire to be installed is devoid of any means of fixing and electrical connection, only wires come out of the wall.

[0008] In a second installation case, the wall is equipped with an electrical flush-mounting box in which a cable or electrical wires are located. This box is quite rudimentary, and the installer must connect the wires to the light fitting via a screw terminal block, for example.

[0009] In both cases, there may be a risk of electric shock if the person forgets to turn off the power. In addition, after several manipulations, the installation may deteriorate, making new connections difficult. In the first installation case, it is also difficult to store the electrical wires in order to make them inaccessible once the light fixture is installed.

[0010] For several years, connection devices for luminaires called DCL have allowed the connection of luminaires to an electrical circuit. This is a real electrical socket, in a reduced format. The DCL is standardized at the international level national by the IEC under reference IEC-619951. This device can be completely recessed into the ceiling or wall, no wires protrude and the electrical connection is very simple and secure. In France, the DCL has been mandatory for new constructions and renovations since October 1, 2001, under the NF C 15-100 standard. In a third installation case, the wall is then a cover or an upper face of a connection device for lighting (DCL).

[0011] Faced with these different installation cases, the installer is often required to choose a luminaire specially adapted for a particular case, or finds himself adapting an existing luminaire for an unforeseen installation case. This results in mechanical strength that is not always satisfactory or a finish that reveals technical parts such as the cover of a DCL. In addition, many installation steps are carried out at wall or ceiling level, such as electrical connections, adjustments and mechanical fixing. Summary of the present invention

[0012] The present invention aims to improve the current situation.

[0013] An object of the present invention is to solve at least one of the problems of the technological background described above.

[0014] Another object of the present invention is to provide an installer with a device for supporting a luminaire designed to install a luminaire in all of the aforementioned cases with real installation comfort.

[0015] According to a first aspect, the invention relates to a device for supporting a luminaire intended to be installed on a wall provided with an electrical power supply, the device comprises a base, a cover mounted on the base and at least one first electrical connector, the base comprising: - a support face extending in a determined plane configured to be placed in contact with the wall; - a first fixing means configured to allow fixing by screwing of a threaded element without tools; - a first opening configured to allow the passage of first electrical wires and a second electrical connector; - a first housing receiving the at least one first electrical connector configured to connect the first electrical wires to second electrical wires of an electrical cable of the luminaire; - a compartmentalized structure configured to adjust a length of the electrical cable by winding the electrical cable in the compartmentalized structure around a second housing guiding the electrical cable in a direction normal to the plane; and - a first contact surface arranged relative to a second contact surface contact of the cover so as to maintain in position by deformation and compression the electric cable relative to the support device.

[0016] This support device thus allows the fixing of the luminaire to the wall and the electrical connection of the luminaire to an electrical installation to be facilitated. Indeed, thanks to the combination of these technical means, the installer has a tool allowing him to prepare the installation of a luminaire without being facing the wall, thus adjusting the length of a luminaire cable and preparing the electrical connections before installing the luminaire without tools on the wall.

[0017] According to a variant of the support device, the compartmentalized structure is configured to allow a superposition of at least two stages of the electric cable.

[0018] Advantageously, the compartmentalized structure is configured to ensure at least three turns of winding of the electric cable.

[0019] The adjustment of the length of the electric cable leaving the support device is adjustable by successive windings of the cable in the compartmentalized structure.

[0020] According to another variant of the support device, the compartmentalized structure has protrusions configured to hold the electric cable in a wound position.

[0021] The adjustment of the length of the electric cable is thus preserved during manipulations of the support device or during adjustments on the ceiling, the electric cable being held in the desired adjustment position.

[0022] According to an alternative embodiment, the threaded element is a screw with a hexagonal or square head locked in rotation in a cavity of the base, the cavity having a shape complementary to the shape of the head of the screw.

[0023] The installer is able to screw the support device into position without using a tool, simply by rotating the base with his hands.

[0024] According to a further variant, the support device comprises a second fixing means comprising at least two openings in the base, which are configured for fixing by screwing the support onto the wall.

[0025] The second fixing means allows the mounting of the support device using screws incorporated in flush-mounted boxes or using screws driven into the wall directly or by doweling.

[0026] Advantageously, the at least two openings are each formed from a groove of a determined width communicating with at least one circular orifice of a diameter greater than the width guaranteeing the passage of a screw head, already present in the wall, through the circular orifice and tightening under the screw head in the groove.

[0027] The grooves allow installation on flush-mounted boxes of different diameters with different fixing center distances and do not constrain the installer has great precision in placing the screws in case of fixing using screws directly fixed in the wall.

[0028] According to another variant of the support device, the first and second contact surfaces together form a baffle.

[0029] The baffle allows the electrical cable of the luminaire to be held in position without crushing and deforming it. The cable is thus held in position by the support device even when a tensile force is transmitted to the cable.

[0030] According to another embodiment, the base has protrusions on an external surface capable of holding in position a rosette covering the base.

[0031] The aesthetic finish of the support device is achieved by the rosette which is thus easily installed, the rosette being simply put in position and held in place by the base.

[0032] According to an additional embodiment, the base has at least one storage space configured to receive installation elements not used during an assembly operation.

[0033] The installer is thus able to store unused installation elements and will find them when dismantling the support device.

[0034] According to a second aspect, the invention relates to a luminaire comprising a support device as described above according to the first aspect of the invention.

[0035] According to a third aspect, the invention relates to a kit or assembly comprising a luminaire and a support device as described above according to the first aspect of the invention.

[0036] Through its various structural and functional aspects as described above, the present invention provides installers with a simple and practical tool which allows a luminaire to be fixed quickly and easily in different installation cases. Brief description of the figures

[0037] Other characteristics and advantages of the invention will emerge from the description of the non-limiting embodiments of the invention below, with reference to the appended figures 1 to 14, in which:

[0038] [Fig.l] schematically illustrates an exploded view of a device for supporting a single-pendant luminaire intended to be installed on a wall provided with an electrical power supply and its environment, according to a particular embodiment of the present invention;

[0039] [Fig.2] schematically illustrates a side view of the support device of a luminaire of [Fig.l], according to a particular embodiment of the present invention;

[0040] [Fig.3] schematically illustrates a sectional view of the support device of a luminaire of [Fig.l], according to a particular exemplary embodiment of the present invention;

[0041] [Fig.4] schematically illustrates a view of the support device of a luminaire of [Fig.1], according to a particular exemplary embodiment of the present invention;

[0042] [Fig.5] schematically illustrates a view of the support device of a luminaire of [Fig.l] without a cover, according to a particular embodiment of the present invention;

[0043] [Fig.6] schematically illustrates a view of the base of the support device of a luminaire of [Fig.1], according to a particular exemplary embodiment of the present invention;

[0044] [Fig.7] schematically illustrates a view of the cover of the support device of a luminaire of [Fig.l], according to a particular exemplary embodiment of the present invention;

[0045] [Fig.8] schematically illustrates a view of a wall light comprising the device of [Fig.1], according to a particular exemplary embodiment of the present invention;

[0046] [Fig.9] schematically illustrates a view of a ceiling luminaire comprising the device of [Fig.l], according to a particular exemplary embodiment of the present invention;

[0047] [Fig. 10] schematically illustrates a view of the ceiling luminaire of [Fig.9] with a lampshade, according to a particular embodiment of the present invention;

[0048] [Fig. 11] schematically illustrates a view of a rosette with diamond faces of a device for supporting a single-pendant luminaire intended to be installed on a wall provided with an electrical supply, according to a particular embodiment of the present invention;

[0049] [Fig. 12] schematically illustrates a view of a molded rosette of a support device for a single-pendant luminaire intended to be installed on a wall provided with an electrical supply, according to a particular embodiment of the present invention;

[0050] [Fig. 13] schematically illustrates a sectional view of the molded rosette of [Fig. 12], according to a particular embodiment of the present invention;

[0051] [Fig. 14] schematically illustrates a view of a multi-pendant ceiling luminaire comprising a luminaire support device intended to be installed on a wall provided with an electrical supply, according to a particular embodiment of the present invention. Description of the embodiments

[0052] A device for supporting a luminaire intended to be installed on a wall provided with an electrical power supply as well as examples of a luminaire comprising such a support device will now be described in the following with reference jointly to Figures 1 to 14.

[0053] The same elements are identified with the same reference signs throughout the description which follows.

[0054] According to a particular and non-limiting example of embodiment of the invention, a support device 100 of a luminaire intended to be installed on a wall provided with an electrical power supply comprises a base 10, a cover 20 mounted on the base and at least one first electrical connector 30.

[0055] According to this example and as illustrated in [Fig. 1], the base 10 and the cover 20 are for example parts made of a thermoplastic material of the PC (polycarbonate), PP (polypropylene), ABS (Acrylonitrile Butadiene Styrene), PLA (Polylactic Acid), PETG (Polyethylene Terephthalate Glycolized), or PA (polyamide) type, the shape of which is obtained by injection molding or by additive printing for example FDM (from the English “Fused Deposition Modeling”), SLS (from the English “Selective Laser Sintering”), SLA (Stereolithography) or MJF (Multi Jet Fusion).

[0056] Obviously, any person skilled in the art understands that such parts can also be obtained using other manufacturing processes, for example by compression molding of a thermosetting material.

[0057] The installer wishes to install a luminaire 200 on a specific wall using the support device 100, the wall being described previously according to 3 installation cases. As a reminder, in the first installation case, the wall receiving the luminaire 200 to be installed is devoid of any means of fixing and electrical connection, only cable 320 or wires 321 come out of the wall.

[0058] In the second installation case, the wall is equipped with an electrical flush-mounting box in which a cable 320 or electrical wires 321 are located.

[0059] In a third installation case, the wall is then a cover 300 or an upper face of a connection device for lighting (DCL) having a standardized connector into which it is sufficient to plug in a second connector 310 compatible with the connector of the installation.

[0060] The installer has, according to this example and as illustrated in [Fig.9], a modular “pendant”, consisting of an electric cable 220 connected to a socket 230 to which a bulb 240 is connected, the socket 230 being able to additionally support a lampshade 250 as illustrated in [Fig. 10].

[0061] The socket 230 allows the connection of a bulb 240 of a standardized type such as an E27 or E14 screw-in bulb, a B22 bayonet bulb or even GU10, S14d or G9 type bulbs. These bulbs are, for example, filament, halogen or LED (from the English "light emitting diode" or in French "electroluminescent diode"). Their energy consumption is notably taken into account for the choice of the section of the second electrical wires 221 constituting the electrical cable 220. Thus, the section of these second electrical wires 221 is for example 0.5, 0.75, 1.0, 1.5mm2.

[0062] The lampshade 250 is ornamental and can have different aspects, different shapes and different materials. Its mass is taken into account in the dimensioning of the support device 100 in order to support the total mass suspended via the electric cable 220.

[0063] According to another example of luminaire 200, the electric cable 220 is connected to a complete luminaire, having for example light sources such as integrated LEDs and / or an electronic circuit for transforming and / or controlling the lighting.

[0064] The installer also has a rosette 210, an aesthetic part made of various materials such as plastic or metallic materials for example which can be bare, coated or painted. This takes on different forms depending on the style of the luminaire 200, its form is for example relatively simple as illustrated in [Fig.l], it has diamond faces as illustrated in [Fig.l 1] or imitates ornamental moldings as illustrated in figures 12 and 13. According to these examples the luminaire 200 comprises a single pendant but it can also comprise several pendants as illustrated in [Fig. 14].

[0065] According to another example of luminaire 200, the latter has an additional part constituting a rigid sleeve 260, illustrated in [Fig.8], allowing the luminaire 200 to be installed as a wall-mounted fixture without the pendant coming into contact with the wall. This rigid sleeve is for example fixed integrally to the base 10 or to the cover 20, or even forms part of one of these two parts.

[0066] Firstly, the installer defines an installation height of the luminaire 200, he then defines a length of electric cable 220 of the luminaire 200. This length is defined relative to the location of the rosette 210, the electric cable 220 passing through the rosette 210 via an orifice 211. In order to represent the final length of electric cable 220 leaving the rosette 210, the installer places a marker on the electric cable 220. Such a marker is for example an additional part clipped onto the electric cable 220 of the luminaire. The marker is placed on the inside of the rosette 210, thus leaving the rosette 210 free to slide on the electric cable 220 to, for example, come to bear against the socket 230 while installing the luminaire 200 on the wall.

[0067] The installer takes hold of the cover 20 and passes the free end of the electric cable 220 of the luminaire through an orifice 22 of the cover 20 provided for this purpose. It then takes the base 10, presents the electric cable 220 in front of a second outlet housing 15 of the base 10, inserts it there and then winds the electric cable 220 in a compartmentalized structure 14a of the base 10, as illustrated in [Fig.6].

[0068] For this purpose, the base 10 comprises a compartmentalized structure 14a configured to adjust a length of the electrical cable 220 by winding the electrical cable 220 in the compartmentalized structure 14a around the second housing 15. Thus, the electrical cable 220 travels a path through the compartmentalized structure 14a, from the second housing 15 to a first housing 13 configured to receive at least one connector 30.

[0069] In this example, the compartmentalized structure 14a is produced using openwork ribs guiding the electric cable 220. The ribs are arranged in the form of an arc of concentric circles, the center of which coincides with the center of the second housing 15. The distance separating the ribs, that is to say the width of a gap separating them, is defined so as to allow the electric cable 220 to pass freely, thus avoiding any effort on the part of the installer placing the electric cable 220 in the compartmentalized structure 14a.

[0070] In this example, in order to have a large adjustment range for the length of the electric cable 220, the compartmentalized structure 14a is configured to allow a superposition of at least two stages of the electric cable 220. In this way, the adjustment range sees its amplitude doubled. Thus, if it is possible to wind 30cm of electric cable 220 in the compartmentalized structure 14a per stage and per turn, then it is now possible to wind in a superimposed manner and per turn approximately 60cm of electric cable 220 in the compartmentalized structure 14a.

[0071] In this example, the compartmentalized structure is also configured to ensure at least three turns of winding of the electric cable 220, so if one turn represents 12cm of electric cable, 3 turns represent approximately 40cm of adjustment of the length of the electric cable 220.

[0072] The ribs being openwork, it is also possible to carry out paths other than simple regular windings, that is to say not to carry out a winding following the entire path proposed in the compartmentalized structure 14a but to adapt the path of the electric cable 220 in the compartmentalized structure 14a so as to adjust more precisely the length of the wound electric cable 220, for example by carrying out partial turns.

[0073] According to another exemplary embodiment, the support device 100 is provided for connecting several electric cables 220, for example 2, 3 or 5 electric cables 220. Each electric cable 220 is then arranged between the same first housing 13 and a second output housing 15 which is assigned to it. The base 10 then has several compartmentalized structures 14a, arranged in such a way that each electric cable 220 can be wound around a second output housing 15 which is allocated to it in a compartmentalized structure 14a which is specific to it. Of course, it is also possible to produce a base 10 having a single compartmentalized structure 14a, arranged in such a way that each second housing 15 allocated to an electric cable 220 is found inside the compartmentalized structure 14a. The different electric cables 220 then travel through the same compartmentalized structure 14a which they share, using different paths so as to adjust each of the electric cables 220 to the desired length.

[0074] In this example and as illustrated in [Fig.6], the compartmentalized structure 14a has protrusions 14b configured to hold the electric cable 220 in a wound position.

[0075] The protrusions 14b are arranged at the entrance of each gap formed by the compartmentalized structure 14a. The section of this passage at the entrance of the gap is then reduced so as to be less than the diameter of the electric cable 220. Thus, when inserting an electric cable 220 into a gap, the installer passes the electric cable 220 by force behind the protrusions 14b, the ribs thus allow the electric cable 220 to pass by deforming and then return to their rest position, holding the electric cable 220 in place in the gap formed by the ribs of the compartmentalized structure 14a.

[0076] This operation of adjusting the length of an electric cable 220 being carried out before the installation of the support device 100 on the wall, the installer can then easily adjust the length of the electric cable 3 without being in an uncomfortable position, for example when the wall is a ceiling. The installer does not have to work with his arms in the air but can instead work seated, the support device 100 placed on a table.

[0077] Once the electrical cable 220 is positioned, the installer strips it, revealing second electrical wires 221 constituting it. He also strips the end of the electrical wires 221 in order to have bare electrical conductors which he places in a terminal block of the connector 30 configured to connect first electrical wires 321 of the installation to the second electrical wires 221.

[0078] The first 321 and second 221 electrical wires are of the flexible, rigid or multi-strand type. The first wires 321 are connected to the second wires 221 via at least one connector 30 of the screw, automatic or lever type.

[0079] In this example and as illustrated in [Fig.5], 3 connectors 30 are arranged in a first housing 13 receiving them. These connectors 30 are removable in order to easily make the electrical connections, and are, once the cover 20 is in place, held in position. The number of 3 connectors is here linked to the number of phases to connect, it is 3 in order to connect phase wires, neutral wires and earth wires corresponding to the connection of a 200 luminaire of electrical class 1, that is to say requiring earthing. The number of connectors can be for example 2 if the 200 luminaire is of class 2, that is to say it does not require earthing or equipotential bonding because it has double electrical insulation. Similarly, 30 connectors are not always connected to electrical wires, it is thus possible to have 3 30 connectors but only 2 phases: a phase wire and a neutral wire.

[0080] According to this example, the connector 30 used is of the lever type. Such a connector is compatible with all the types of wires presented previously. The installer has a lever allowing a conductor of a wire to be freely inserted into the terminal block when the lever is in an open position and allowing a conductor of a wire present in the terminal block to be released during disassembly. Conversely, in the closed position, the lever releases a spring which grips the conductor of an electrical wire, holding it in position and creating an electrical contact between the terminal block of the connector 30 and the conductor of the electrical wire.The connector 30 has a determined number of inputs per phase, for example 2 inputs if it is a question of connecting a single first wire 321 of the same phase to a single second wire 221 of this same phase, or several inputs in the case of a tapping, that is to say in the case where several first wires 321 are of the same phase and must be connected together, or in the case where the luminaire has several cables 220 associated with several pendants, for example 3 pendants as illustrated in [Fig. 14].

[0081] In the case where the installation is carried out on a DCL, the installer also connects each first electrical wire 321 of an electrical cable 320 connected to a DCL plug 310 to a connector 30.

[0082] The installer then positions each connector 30 in the first housing 13 provided for this purpose. In order to hold the electrical cable 220 and each connector 30 in position, the installer slides the cover 20 along the electrical cable 220 and then presents it facing the base 10, the second housing 15 being located opposite the orifice 22.

[0083] In this example and as illustrated in [Fig. 4], the cover 20 is partially inserted by vertical translation into the base 10, a vertical axis A being defined as normal to a support plane P coincident with a support face 11 of the base 10, the support face 11 being the face which will be in contact with the wall once the support device 100 is installed and passing through the center of the second housing 15, as illustrated in [Fig. 2]. Once the cover 20 is in abutment in the base 10, that is to say once a lower face 21 of the cover 20 is in contact with a face defining the bottom of the second housing 15, the installer pivots the cover 20 a quarter turn around the vertical axis A, fins 23 being inserted into the complementary shapes made in the base 10. To facilitate the operation of locking the cover 20 in the base 10 by rotation, the installer has gripping zones 24 facilitating the operation. In order to lock the cover 20 in the final position, a lug 25 is placed on one of the faces of the cover 20, the lug 25 being inserted into a complementary housing 102 provided in the base 10. The installer is then informed that the cover 20 is correctly positioned on the base 10 when he feels by force feedback that the lug 25 has arrived in its housing 102.

[0084] Other means of assembling the cover 20 on the base 10, not illustrated here, are also conceivable, such as clipping the cover 20 onto the base 10 or even assembly by screwing. The installer then only has to apply a simple pressure so that the cover 20 is fixed securely to the base 10 or tightening at least one screw.

[0085] In this example, the installation of the cover 20 on the base 10 makes it possible to obtain a class 2 subassembly, in fact the conductive parts of the assembled assembly are protected: - by electric cables 320 and 220 having two insulating envelopes, those constituting the external sheaths of the cables and those constituting the sheath of each electric wire 321, 221, - by the sheathing of each electric wire 321, 322 and an envelope comprising the cover 20 and the base 10, and / or - by a connector 30 housed under an envelope comprising the cover 20 and the base 10. In addition, in this example the support device 100 comprises 3 first electrical connectors 30, one of which is used for grounding the luminaire 200, the support device 100 is thus compatible with any luminaire 200 of class 1 or 2.

[0086] In this same example, once the cover 20 is mounted on the base 10, the electrical cable 220 of the luminaire is locked, a first contact surface 16 of the base 10 arranged relative to a second contact surface 21 of the cover 20 holds the electrical cable 220 in position by deformation and compression relative to the support device 100.

[0087] The first contact surface 16 is produced in the form of a rib, placed on the path of the electric cable 220 in the compartmentalized structure 14a. This rib is placed at the entrance to the second housing 15, the electric cable 220 always passing at this location.

[0088] The second contact surface 21 is merged with the lower surface of the cover 20.

[0089] According to this example and as illustrated in [Fig.3], the first 16 and second 21 contact surfaces are offset, a first support point between the support surface 16 and the electric cable 220 and a second support point between the support surface 21 and the electric cable 220 are placed on the same plane normal to the plane P and passing through the vertical axis A, at a different distance from the vertical axis A. The first 16 and second 21 contact surfaces together form a chicane. The first and second support points are separated by a distance greater than the diameter of the electric cable 220, forcing the electric cable 220 to follow a path formed by the chicane by deforming but without being cut. The integrity of the electric cable 220 is thus preserved, the electric cable 220 is however maintained by the assembly formed by the base 10 and the cover 20 assembled.

[0090] The deformation of the electric cable 220 is generated when the cover 20 is mounted on the base 10, the installer pushes the cover 20 towards the base 10, thus pressing the cable. Once the cover 20 is in position, the pressure is maintained by the fins 23 of the cover 20 positioned in a complementary groove of the base 10. The mechanical strength of the electric cable 220 in the face of a tensile force is thus guaranteed by the deformation of the electric cable 220 passed through the chicane thus produced.

[0091] In order to fix the assembly thus formed by the installer to the wall, the installer removes, if the DCL is provided with one, a fixing hook. He then positions it in a housing provided for this purpose on the base 10 having at least one storage space configured to receive installation elements not used during an assembly operation in order to avoid losing some of these elements. A vacant volume is for example available between the base 10 and the rosette 210 and a holding means such as a clip is arranged on the base 10 in order to receive the fixing hook of the DCL. The installer will then easily find it during a phase of replacing the support device 100.

[0092] According to this example and as illustrated in [Fig.3], to fix the support device 100 on the cover 300 of the DCL, the base 10 comprises a first fixing means configured to allow fixing by screwing of a threaded element 40 without tools. The installer first inserts a threaded element 40 into the base 10, before arranging the electric cable 220 and mounting the cover 20. Indeed, the housing 17 receiving the threaded element is closed once the electric cable 220 and the cover 20 are in position.

[0093] The diameter and pitch of a thread of the threaded element 40 are similar to those of the previously dismantled DCL hook. These dimensions are common in the case of installation on DCL, such hooks being frequently used in accordance with standardized flush-mounting boxes such as presented in the preamble. Such dimensions for the threaded element thus give it resistance to a sufficient tensile force, the applicable tensile force being similar to a tensile force applied to the hook.

[0094] In this example, the threaded element 40 is a hexagonal head screw locked in rotation in a cavity 17 of the base 10, the cavity 17 having a shape complementary to the shape of the screw head. It should be noted that a square head shape is also suitable, the cavity 17 is then of a suitable square shape.

[0095] This embodiment is not the only possible one, any person skilled in the art is able to propose other solutions such as directly producing the threaded element 40 in the main body of the base 10 or even molding or printing the base 10 directly on the threaded element 40, the threaded element 40 then being embedded in the base 10. Among these particular embodiments of the first fixing means, the first mode has the advantage of allowing the dissociation of the threaded element 40, thus making it removable and not in the way in the case where the latter is not used during the installation of the support device 100.

[0096] According to this example, the mounting of the base 10 on the wall is done without using a tool, it is sufficient for an installer to turn the base 10 by hand so that the bearing face 11 comes into contact with the wall by screwing the threaded element 40, the threaded element 40 being screwed into a part of a flush-mounting box provided for this purpose or into a dowel placed beforehand in the wall.

[0097] Tool-free screwing by simply rotating the base 10 by hand is very easy. Indeed, the base 10 has a width or an external diameter that is significantly greater than the width or diameter of a screwdriver handle. The base 10 has, for example, a width or a diameter of 70, 90, 120, 150 mm. The torque obtained by rotating the base 10 by the user is thus very high compared to that obtained using a screwdriver or a tool of a size close to that of a screwdriver handle. The installer then comfortably fixes the base 10 to the wall.

[0098] The high torque generated by the rotation of the base 10 during the screwing operation of the threaded element 40 as well as the pressure exerted by the threaded element 40 along its axis of rotation is transmitted in the zones of the base 10 in contact with the threaded element 40. Thus, according to a particular embodiment, ribs are made in the base 10 around the cavity 17 in order to stiffen this part of the base 10 and make it more solid.

[0099] The rotation of the base 10 ends when the bearing face 11 is in contact with the cover 310 of the DCL and a first opening 12 of the base 10 is presented facing the connector of the DCL, the first opening 12 being configured to allow the passage of first electrical wires 321 and a second electrical connector 310. The installer is then able to insert the second electrical connector 310, here a DCL plug, through this first opening 12.

[0100] In order to match the shape of the wall and to accept flatness defects, the base is for example capable of deforming to follow the surface of the wall.

[0101] According to another example not illustrated, the base comprises on its rear face an elastic part, for example a seal made of elastomer material of the rubber, silicone or polyurethane. This elastic part is capable of deforming in order to fill, for example, roughness on the surface of the wall of the order of a few millimeters, for example, 1, 2 or 3 mm, providing a seal at the junction between the base 10 and the wall. According to a first particular embodiment of the elastic part, it is inseparable from the base 10. It is for example produced by overmolding, that is to say injection molding of a second material directly onto a main body of the base 10, thus making the main body of the base 10 and the elastic part integral. According to a second particular embodiment of the elastic part, it constitutes another part separate from the base 10. This elastic part is then a seal, which is for example toric in shape and which is housed in a groove produced in the bearing face 11 of the base 10.Such an O-ring is, for example, a commercially available seal, which facilitates its supply and makes it possible to benefit from a wide choice of size, shape and material in order to meet different needs determined according to the type of wall and the environment in which the support device 100 comprising this seal is placed.

[0102] According to this example and as illustrated in [Fig.6], the base 10 has on an external surface protuberances 19 capable of holding in position a rosette 210 covering the base 10. This rosette 210 has a decorative function, it makes it possible to mask the base 10, the cover 20, the various fixing means, the at least one connector 30 and the electrical cables 320 and 220. The rosette 210 is held in position by the base 10. The rosette has no mechanical action, the base 10 being fixed to the wall and the other elements of the support device 100 being fixed to the base 10, it is therefore not necessary to produce a very solid assembly means. This is for example forced onto the base 10, thus coming to bear against the protrusions 19, or clipped onto the base 10.

[0103] In the case where the installation does not include a DCL, the mounting of the support device 100 on the wall is different.

[0104] In this example and as illustrated in [Fig.6], the support device 100 comprises a second fixing means. The base 10 comprises two openings 18, which are configured for fixing by screwing the support 10 onto the wall. These two openings 18 are configured to allow the passage of a body of a fixing screw and tightening under the screw head. Thus, in the absence of a dedicated fixing on or in the wall, the installer fixes the support device 100 to the wall using a conventional fixing method. He then simply has to make, for example, holes in the wall, insert a dowel adapted to the type of wall and then fix the base 10 of the support device 100 by screwing screws through the openings 18.

[0105] According to this example, the two openings are each formed from a groove 18a of a determined width communicating with at least one circular orifice 18b of a diameter greater than the width ensuring the passage of a screw head through the circular hole 18b and a tightening under the screw head in the groove 18a. This type of opening 18 is commonly called a buttonhole. It allows the installer to fix the support device 100 to the wall without completely removing screws already existing on or in the wall.

[0106] For example, if the wall has a flush-mounted box comprising two fixing screws arranged at a center distance of 47, 60 or 71 mm, the installer begins by partially unscrewing the screws so as to make them come out of the wall, a distance separating the wall from the underside of a screw head being greater than a thickness of the base 10 around the groove 18a. The installer then passes a first screw head through a circular orifice 18b, then translates the base 10 so as to arrange a second circular orifice 18b opposite the head of a second fixing screw. Once all the fixing screws have passed through the openings 18, the installer translates the base 10 so as to arrange each fixing screw head opposite a groove 18a, then tightens the screws in order to hold the base 10 in position on the wall.

[0107] Once the base is fixed to the wall, the installer retrieves the electrical power supply. This is in the form of an electrical cable 320 or in the form of electrical wires 321. The installer grasps them and passes them through the first opening 12 made so as to allow the use of the support device 100 both on an electrical power supply comprising wires or a cable directly accessible, coming out of the wall or arranged inside a flush-mounted box present in the wall. The shape of the first opening 12 is thus defined so as to allow several electrical wires 321 to pass free or arranged in an electrical cable 320. For greater ease of installation, the shape of the first opening 12 is wider than necessary, thus providing play and freedom of positioning of the base 10.The installer strips the electrical cable 320 and the electrical wires 321 if necessary and connects them to each first electrical connector 30.

[0108] Note here that in the case where several electrical cables 320 are present or several electrical wires 321 of the same phase are present, the first connectors 30 can be adapted to tapping. The support device 100 then integrates connectors having a plurality of inputs for each phase.

[0109] It should also be noted that to obtain a class 2 assembly and in the case where the installation has electrical wires 321 and not an electrical cable 320, the installer adds sheaths to each electrical wire 321 in order to obtain double insulation of the conductors.

[0110] The installer then places the cover 20 on the base 10, thus holding each element in position. He then slides the rosette along the electrical cable 220 until it covers the support device 100.

[0111] The installer thus has a practical tool suitable for many installation scenarios. This versatile solution allows him to easily mount different luminaires with great ease.

[0112] It should be noted that this detailed description relates to various particular embodiments of the present invention, but that in no case does this description have any limiting character with respect to the subject of the invention; on the contrary, its objective is to remove any possible imprecision or any misinterpretation of the claims which follow.

[0113] It should also be noted that the reference signs placed in parentheses in the following claims are in no way limiting; these signs have the sole purpose of improving the intelligibility and understanding of the following claims as well as the scope of the protection sought.

Claims

Claims

1. Support device (100) for a luminaire (200) intended to be installed on a wall provided with an electrical power supply, wherein said support device (100) comprises a base (10), a cover (20) mounted on the base (10) and at least one first electrical connector (30), said base (10) comprising: - a bearing face (11) extending in a determined plane (P) configured to be brought into contact with said wall; - a first fixing means configured to allow fixing by screwing of a threaded element (40) without tools; - a first opening (12) configured to allow the passage of first electrical wires (321) and a second electrical connector (310); - a first housing (13) receiving said at least one first electrical connector (30) configured to connect said first electrical wires (321) to second electrical wires (221) of an electrical cable (220) of said luminaire;- a compartmentalized structure (14a) configured to adjust a length of said electric cable (220) by winding said electric cable (220) in said compartmentalized structure (14a) around a second housing (15) guiding said electric cable (220) in a direction normal to said plane (P); and - a first contact surface (16) arranged relative to a second contact surface (21) of the cover (20) so as to hold in position by deformation and compression said electric cable (220) relative to said support device (100).;

2. Support device (100) according to claim 1, wherein the compartmentalized structure (14a) is configured to allow a superposition of at least two stages of said electric cable (220).

3. Support device (100) according to one of claims 1 to 2, for which the compartmentalized structure (14a) is configured to ensure at least three turns of winding of said electric cable (220).

4. Support device (100) according to one of claims 1 to 3, for which the compartmentalized structure (14a) has protrusions (14b) configured to hold said electric cable (220) in a wound position.

5. Support device (100) according to one of claims 1 to 4, for which said threaded element (40) is a screw with a hexagonal or square head locked in rotation in a cavity (17) of said base (10), the cavity (17) having a shape complementary to the shape of the head of the screw.

6. Support device (100) according to one of claims 1 to 5, which comprises a second fixing means comprising at least two openings (18) in said base (10), which are configured for fixing by screwing said support on said wall.

7. Support device (100) according to claim 6, wherein said at least two openings (18) are each formed of a groove (18a) of a determined width communicating with at least one circular orifice (18b) of a diameter greater than said width guaranteeing the passage of a screw head through the circular orifice (18b) and tightening under the screw head in the groove (18a).

8. Support device (100) according to one of claims 1 to 7, for which the first (16) and second (21) contact surfaces together form a baffle.

9. Support device (100) according to one of claims 1 to 8, for which the base (10) has on an external surface protrusions (19) capable of holding in position a rosette (210) covering said base (10).

10. Support device (100) according to one of claims 1 to 9, for which the base (10) has at least one storage space configured to receive installation elements not used during an assembly operation.

11. Luminaire (200) comprising the support device (100) according to one of claims 1 to 10.

12. Assembly comprising a luminaire (200) and a support device (100) according to one of claims 1 to 10.