Multi-led light module and lighting system obtained by assembling together more multi-led light modules

Abstract

Multi-LED light module (1) comprising a first and a second COB-LED light strip (10, 20) provided, respectively, with a first and a second substrate (11, 21) having a first and a second face opposite to each other (12,13; 22, 23). The first and second COB-LED light strips (10, 20) are provided, respectively, with a first and a second plurality of LED-chips (15, 25) positioned on the first face (12, 22) of the respective substrate (11, 21) by a chip-on-board technology and arranged to emit light radiation in a predetermined range of wavelengths which corresponds to a determined colour. The first and the second substrate (11, 21) are, respectively, provided on the second face (13, 23) with a first and a second track of conductive material (14,16; 24, 26) having, respectively, a positive polarity and a negative polarity. An elongated tubular body (30) is, furthermore, provided arranged to house, in use, the first and second COB-LED strips (10, 20) superimposed one on the other in such a way to obtain an assembled configuration where the second face (13) of the first substrate (11) and the second face (23) of the second substrate (21) face one another, with the respective tracks with positive polarity (14,16) positioned in contact at least for a part of their lengths, as well as the respective tracks with negative polarity (24, 26).

Description

[0001] TITLE

[0002] MULTI-LED LIGHT MODULE AND LIGHTING SYSTEM OBTAINED BY ASSEMBLING TOGETHER MORE MULTI -LED LIGHT MODULES

[0003] DESCRIPTION

[0004] Field of the invention

[0005] The present invention relates to the field of lighting, and more precisely it relates to a multi-LED light module .

[0006] The invention, furthermore , relates to a lighting system obtained by assembling together more multi-LED light modules .

[0007] Description of the prior art

[0008] As known, thanks to the development of the LED technology, more and more ef ficient light members are available . In fact , elements which use LEDs are available , that are made by microelectronics technology, by placing very numerous groups of single LED side by side and close to each other . A LED can have a power of many watts , normally from 1 watt up to many dozens of watts , and it is able to obtain a very high ef ficiency, for example with a light flux of over 100 lumen / watt .

[0009] The LED are frequently used for lighting inside and outside environments .

[0010] Among the many uses , for example , the LED can be used for street lighting and for lighting monuments and architectural structures , in the show business for stage lights (both for obtaining ef fects , and for proj ectors of Wash Light type ) . In the inside environments , the LED are frequently preferred also for domestic lighting .

[0011] It is known, furthermore , that , in the lighting field, the COB-LED light modules , which means made by the so called "Chips On Board" technology, are having a great success . The COB-LED light modules , generally, comprise a common support layer ( indicated in the following with "COB-substrate" ) and a plurality of LED-chips which are mounted on the support according to a determined geometric distribution which can be a matrix, or a row, and are adapted, in use , to emit light radiation at a wavelength belonging to a predetermined range of wavelengths , each of which associated to a respective colour of the visible spectrum .

[0012] The COB-LED light modules described above have many advantages among which : to have a Light Emitting Surface ( LES ) which is particularly compact, to allow a colour regulation of the light within a relatively wide range of colour tones , and to carry out a pre-mixing of the coloured lights already at the emission step by the LED- chip thanks to the uni form distribution of these latter .

[0013] Despite the numerous advantages above described, at present , there is the technical need to provide highly versatile and easy to install lighting systems in addition be able to guarantee an optimi zation of the lighting emission .

[0014] Some solutions of the prior art with the aforementioned drawbacks are described in US2007 / 228999 , US5463280 , US 10104723 , US 9702531 , US2015 / 022114 and

[0015] US2014 / 071672 . Summary of the invention

[0016] It is , therefore , an obj ect of the present invention to provide multi-LED light module able to overcome the aforementioned drawbacks of the multi-LED light modules of prior art .

[0017] It is , in particular , an obj ect of the present invention to provide a multi-LED light module which allows to simpli fy and speed up the assembling step of the di f ferent components .

[0018] It is , also , an obj ect of the present invention to provide a multi-LED light module which is able to maximi ze the emission of light of the LEDs .

[0019] It is a further obj ect of the present invention to provide a lighting system obtained by assembling together more multi-LED light modules having analogous advantages .

[0020] It is still a further obj ect of the present invention to provide a connector device which is able to increase the ef ficiency of the electrical connection, in particular in terms of voltage drop, with respect to the known prior art solutions .

[0021] These and other obj ects are achieved by the multi-LED light module comprising :

[0022] - a first COB-LED light strip comprising :

[0023] - a first substrate having a first and a second face opposite to each other ;

[0024] - a first plurality of LED-chips positioned on said first face of said first substrate by a chip- on-board technology, said LED-chips of said first plurality being arranged to emit light radiation in a predetermined range of wavelengths ; - at least a first and a second track of conductive material positioned on said second face of said first substrate , said first and second tracks of conductive material having, respectively, a positive polarity and a negative polarity;

[0025] - a second COB-LED light strip comprising :

[0026] - a second substrate having a first and a second face opposite to each other ;

[0027] - a second plurality of LED-chips positioned on said first face of said second substrate by a chip-on-board technology, said LED-chips of said second plurality being arranged to emit light radiation in a respective predetermined range of wavelengths ;

[0028] - at least a first and a second track of conductive material positioned on said second face of said second substrate , said first and second tracks of conductive material having, respectively, a positive polarity and a negative polarity;

[0029] - an elongated tubular body arranged to house , in use , said first and second COB-LED light strips , said tubular body being made of a material transparent to said light radiation emitted by said first and second pluralities of LED-chips ; wherein the main characteristic of said multi-LED light module is that said first and second COB-LED light strips are positioned within the tubular body superimposed one on the other in such a way to obtain an assembled configuration where said second face of said first substrate and said second face of the second substrate face one another , and that the elongated tubular body is configured to force the first and second COB-LED light strip in said assembled configuration, where the tracks of conductive material with positive polarity of the first and second COB-LED light strips are positioned in contact to each other at least for a part of their lengths , and the tracks of conductive material with negative polarity of the first and second COB-LED light strip are positioned in contact to each other at least for a part of their lengths .

[0030] Other features of the present invention and related embodiments are set out in the dependent claims .

[0031] In particular, the aforementioned range of wavelength of the first and second pluralities of LED-chips can be the same or substantially the same , or di f ferent from each other, according to the type of desired light ef fect .

[0032] In particular, with the expression "elongated tubular body" it is meant a tubular body which has a transversal cross section 0est much lower with respect to the length L . More in particular, the elongated tubular body can have a transversal cross section 0est 50 times less than length L, i . e . 50 -0est<L, advantageously a transversal cross section 0est 100 times less than the length L, i . e . 100 -0est<L .

[0033] In particular, the elongated tubular body can be made of a material with a high sti f fness , preferably in a material with a Young' s modulus higher than 40 GPa, advantageously higher than 70 GPa, preferably higher than

[0034] 90 GPa .

[0035] For example , the elongated tubular body can be made of a material selected among :

[0036] - fibreglass ;

[0037] - Linen fiber ;

[0038] - Carbon fibre ;

[0039] - Acrylonitrile Butadiene Styrene , or ABS ;

[0040] - Polymethyl methacrylate , or PMMA;

[0041] - Polyester modi fied with glycol ; or a combination thereof .

[0042] In an alternative embodiment of the invention, the elongated tubular body can be made of a heat shrinkable material , or able to contract , arranged to move by heating from a rest configuration where is positioned around the first and the second COB-LED light strip to a tightening configuration where is arranged to force the first and second COB-LED light strips in the aforementioned assembled configuration .

[0043] In particular, the heat shrinkable , or able to contract , material , can be selected among polyethylene , Polyvinylidene fluoride ( PVDF) , Kynar,

[0044] Polytetrafluoroethylene ( PTFE ) , irradiated Polyolefin, silicone , Viton, or a combination thereof .

[0045] In particular, the aforementioned elongated tubular body can be made of a composite material . More in particular, the aforementioned composite material can be selected among :

[0046] - fibreglass with polyester resin;

[0047] - fibreglass with epoxy resin;

[0048] - fibreglass with vinyl-ester resin;

[0049] - fibreglass with vinyl epoxy resin .

[0050] In particular, the elongated tubular body can have an external diameter 0est comprised between 5 mm and 10 mm, advantageously comprised between 5 mm and 9 mm, preferably comprised between 6 mm and 8 mm.

[0051] Advantageously, the elongated tubular body can have an internal diameter 0int comprised between 2 mm and 7 mm, advantageously comprised between 2 mm and 6 mm, preferably comprised between 2 mm and 4 mm .

[0052] In particular, the first and second COB-LED light strips , at the respective second face , respectively of the first and of the second substrate can comprise :

[0053] - a first track of conductive material with a positive polarity;

[0054] - a second track of conductive material with a negative polarity, in particular for the cold light ;

[0055] - a third track of conductive material with negative polarity, in particular for the warm light .

[0056] In particular, the first and second tracks of conductive material can be arranged to be connected to an electrical supply cable configured to be connected to a source of electrical power by a connector device .

[0057] In an embodiment of the invention, the connector device can be provided with at least a first and a second connection pin having first end portions configured to engage an engagement portion of the multi-LED light module between the first and the second COB-LED light strip . More precisely, the first end portions can be arranged to engage to each other by a notch j oint respectively at the first tracks of conductive material with positive polarity superimposed to each other and the second tracks of conductive material with negative polarity superimposed to each other, and second end portions configured to be electrically connected, respectively, to a positive terminal and to a negative terminal of the electrical supply cable .

[0058] In an alternative embodiment of the invention, a connector device can comprise a support member, advantageously a flexible support member, having a first and a second track, or course , made of a conductive material , for example copper, which extends between a first and a second side opposite to each other . Each track of conductive material , preferably at a respective end portion, can be provided with a respective electrical connection portion arranged to be connected, preferably by one or more welding points , to a respective electrical connection cable . In this case , the connector device can be used for electrically connecting an electronic circuit , for example at least a COB-LED strip, or two COB-LED strips superimposed to each other as in the case of the multi-LED light module according to the invention .

[0059] Preferably, the support member can be a flexible support member . In this case , the aforementioned connector device , from a starting extended configuration, in particular planar, owing to its flexibility, can be folded along a transversal line , advantageously a centre line , to be arranged in a folded configuration, in such a way to form the first and the second side opposite to each other between which the first and second tracks of conductive material extend, each of which has in this configuration a substantially "U" shape . In this folded configuration, the connector device can be arranged between the aforementioned second face of the first substrate and the aforementioned second face of the second substrate , and with the first track of conductive material in contact , respectively, with both the tracks a positive polarity and the second track in contact with both the tracks with negative polarity .

[0060] In this way, it is possible to electrically connect to each other the tracks with positive polarity by the first track which is present on the flexible support member, and the tracks with negative polarity by the second track which is present on the flexible support member and, therefore , to a source of electrical power by a connection cable , in particular provided with a positive wire and with a negative wire , welded at the first and second electrical connection portions , or pads of electrical connection .

[0061] In particular, a sheath can be , furthermore , provided preferably made of a heat shrinkable material . More in particular, the sheath can be positioned, in use , around the engagement portion of the multi-LED light module , to the connector device and to an electrical connection portion of the electrical supply cable , in such a way to insulate from the outside these components and guarantee the necessary safety conditions .

[0062] According to another aspect of the invention, a lighting system comprises :

[0063] - a first and at least a second multi-LED light module as describe above ;

[0064] - a connector device arranged to electrically connect the first and the , or each, second multi-LED light module , said connector device being provided with at least a first and a second connection pin configured to engage , respectively, between the first and the second COB-LED light strip of the first and of the second multi-LED light module respectively at the first tracks of conductive material with positive polarity superimposed to each other, and the second tracks of conductive material with negative polarity superimposed to each other .

[0065] In particular, a tubular j oint can be , furthermore , provided arranged, in use , between respective end portions of the first and of the second multi-LED light module , in such a way to house the connector device . More in particular, the tubular j oint can be arranged to be removably engaged to the first and to the second end portion by at least a first and a second engagement member .

[0066] According to a further aspect of the invention, a lighting system comprises at least a first multi-LED light module having :

[0067] - a first COB-LED light strip comprising :

[0068] - a first substrate having a first and a second face opposite to each other ;

[0069] - a first plurality of LED-chips positioned on said first face of said first substrate by a chip- on-board technology, said LED-chips of said first plurality being arranged to emit light radiation in a predetermined range of wavelengths ;

[0070] - at least a first and a second track of conductive material positioned on said second face of said substrate , said first and second tracks of conductive material having, respectively, a positive polarity and a negative polarity;

[0071] - a second COB-LED light strip comprising :

[0072] - a second substrate having a first and a second face opposite to each other ;

[0073] - a second plurality of LED-chips positioned on said first face of said second substrate by a chip-on-board technology, said LED-chips of said second plurality being arranged to emit light radiation in a predetermined range of wavelengths ;

[0074] - at least a first and a second track of conductive material positioned on said second face of said second substrate , said first and second tracks of conductive material having, respectively, a positive polarity and a negative polarity;

[0075] - a supplementary elongated tubular body arranged to house , in use , said first and second COB-LED light strips , said supplementary elongated tubular body being made of an elastomeric material transparent to said light radiation ; wherein said first and second COB-LED light strips are positioned within said supplementary elongated tubular body superimposed one on the other in such a way to obtain an assembled configuration where said second face of said first substrate and said second face of said second substrate face one another ; wherein in said assembled configuration said tracks with positive polarity of said first and second COB-LED light strips are placed in contact to each other at least for a part of their lengths and said tracks with negative polarity of said first and second COB-LED light strips are placed in contact to each other at least for a part of their lengths ; whose main characteristic is that said or each elongated tubular body is configured to be interposed between the first and the second COB-LED light strip and the supplementary elongated tubular body at least at an end portion of the supplementary elongated tubular body in such a way to force the tracks with positive polarity of the first and second COB-LED light strip one against the other, and the tracks with negative polarity of the first and second COB-LED light strips one against the other .

[0076] According to a further aspect of the invention, a connector device , in particular for electrically connecting at least a COB-LED strip to an electrical source , or at least two COB-LED strips one with the other , can comprise a flexible support member on at least one face of which at least a first and a second track or course are present , which is made of a conductive material , for example copper . Each track in conductive material can be provided, preferably at a respective end portion, with a respective electrical connection portion arranged to connect , preferably by one or more welding points , each track of conductive material to a respective electrical connection cable .

[0077] Brief description of the drawings

[0078] The invention will be now i llustrated with the following description of an exemplary embodiment thereof , exempli fying but not limitative, with reference to the attached drawings wherein :

[0079] - Figures from 1A to IE diagrammatically show side elevation perspective views of the main components of a multi-LED light module 1 , according to the invention;

[0080] - Fig . 2 diagrammatically shows a front view of the multi-LED light module according to the invention in an assembled configuration;

[0081] - Fig . 3 diagrammatically shows a transversal cross section view of the multi-LED light module, according to the invention;

[0082] - Fig . 4 diagrammatically shows an enlargement of the multi-LED light module of figure 3 for highlighting some technical characteristics ;

[0083] - Figures from 5 to 6B diagrammatically show perspective views of some assembling steps of the multi-LED light module according to the invention;

[0084] - Figures 7 and 8 diagrammatically show an alternative embodiment of the multi-LED light module according to the present invention;

[0085] - Figures from 9 to 20 diagrammatically show some embodiments of a lighting system obtained by assembling together more multi-LED light modules according to the invention;

[0086] - Fig . 21 diagrammatically shows a plan view of a connector device, according to the invention;

[0087] - Figures from 22 to 24 diagrammatically show a succession of steps through which the connector device of figure 21 can be subj ected to be positioned in a light module, according to the invention, for electrically connecting the same ;

[0088] - Fig . 25 diagrammatically shows a plan view da a first lato an alternative embodiment of the connector device of figure 21 ;

[0089] - Fig . 26 diagrammatically shows in cross section view according to arrows XXVI-XXVI of the connector device of figure 25 ; - Fig . 27 shows an enlargement of a portion of figure 26 for highlighting some technical characteristics of the connector device of figure 25 ;

[0090] - Fig . 28 diagrammatically shows a plan view from a second side of the alternative embodiment of the connector device of figure 25 ;

[0091] - Fig . 29 diagrammatically shows a cross section view according to arrows XXIX-XXIX the connector device of figure 25 ;

[0092] - Fig . 30 shows an enlargement of a portion of figure 29 to highlight some technical characteristics of the connector device of figure 25 ;

[0093] - Fig . 31 diagrammatically shows a plan view of another alternative embodiment of the connector device of figure 25 ;

[0094] - Figure 32 and 33 diagrammatically show a plan view respectively for the first and rom the second side of a further alternative embodiment of the connector device of figure 25 ;

[0095] - Figures from 34 to 37 diagrammatically show side elevation perspective views of some possible lighting solutions , or lamps , which can be obtained by one or more multi-LED light modules according to the invention .

[0096] Detailed description of some exemplary embodiments of the invention

[0097] As diagrammatically shown in the figures from 1A to IE , a multi-LED light module 1 , according to the invention, comprises a first COB-LED light strip 10 comprising a first substrate having a first and a second face opposite to each other 12 and 13 . A first plurality of LED-chips 15 is , furthermore , provided positioned on the first face 12 of the first substrate 11 by a chip-on- board technology, for example organi zed according to a first row of LED-chips 15 , as shown as an example in figure , or a first matrix comprising a predetermined number of LED-chips , in particular grouped in a predetermined number of LED-chips , arranged to emit light radiation in a predetermined range of wavelengths . On the second face 13 of substrate 11 at least a first and a second track are positioned of conductive material , preferably copper, 14 and 16 having, respectively, a positive polarity and a negative polarity . The multi-LED light module 1 comprises , furthermore , a second COB-LED light strip 20 having a second substrate 21 having a first and a second face opposite to each other 22 and 23 . The second substrate 21 is , furthermore , provided with a second plurality of LED-chips 25 positioned on the first face 22 of the same by a chip-on-board technology, for example organi zed in a second row of LED-chips 25 , as shown as an example in figure , or in a second matrix comprising a predetermined number of LED-chips , in particular grouped in a predetermined number of LED-chips 25 . In particular, each COB-LED strip 10 , 20 has a predetermined number of LED-chips 15 and 25 . More in particular, each COB-LED strip 10 , 20 can have from 100 to 500 LED-chips 15 per running meter , advantageously from 100 to 300 LED-chips 15 per running meter .

[0098] At the second face 23 , the second substrate 21 is provided with a first and with a second track of conductive material 24 , and 26, preferably copper . More precisely, the first and second tracks of conductive material 24 and 26 have , respectively, a positive polarity and a negative polarity .

[0099] The multi-LED 1 module , according to the invention, provides , furthermore , an elongated tubular body 30 , for example of length comprised between 20 cm and 20 m, in particular of length comprised between 40 cm and 10 m, advantageously of length comprised between 50 cm and 5 m, arranged to house , in use , the first and second COB-LED strips 10 and 20 . Generally, the COB-LED strips 10 , 20 can be electrically connected, for example welded, up to obtain a desired total length . In particular, the COB-LED strips 10 and 20 can be provided with pre-cutting lines , or simply with reference lines for the cut , at which the same can be cut to be , then, connected in series to each other, respectively, to at least another COB-LED strip 10 , and 20 taking into account the polarity of the respective negative and positive tracks up to obtain the desired total length for each COB-LED strip 10 , or 20 . More precisely, the tubular body 30 is made of a material transparent to the aforementioned light radiation emitted by the LED-chips 15 and 25 . In particular, each LED-chip 15 and 25 is arranged to emit light radiation to a wavelength belonging to a predetermined range of wavelengths , each of which associated to a respective colour of the visible spectrum .

[0100] According to the present invention, the first and second COB-LED light strips 10 and 20 are positioned within the tubular body 30 , in particular by a relative sliding, in such a way to arrange the same superimposed one on the other, thus obtaining an assembled configuration where the second face 13 of the first substrate 11 and the second face 23 of the second substrate 21 face one another . In particular, in use , in the assembled configuration, the tracks with positive polarity 14 and 24 of the first and second COB-LED light strips 10 and 20 are positioned in contact to each other at least for a part of their lengths . Analogously, in use , in the aforementioned assembled configuration, also the tracks with negative polarity 24 and 26 , of the first and second COB-LED light strips 10 and 20 are positioned in contact to each other at least for a part of their lengths ( see figures 2-4 ) . In particular , the elongated tubular body 30 can be made of a material with a high sti f fness , that means a material with a Young' s modulus higher than a predetermined value , for example higher than 1 . 5 GPa, in such a way to be able to keep the first and second COB-LED light strips 10 and 20 in the assembled configuration, where the tracks of conductive material with positive polarity 14 and 24 and the tracks of conductive material with negative polarity 16 and 26 are forced to be placed in contact with each other at least for a part of their lengths . In fact , i f the material of the elongated tubular body 30 is , instead, elastic, that means i f it had a low Young' s modulus , in the assembled configuration the elongated tubular body 30 would yield elastically thus not ensuring the electrical contact between the tracks with positive polarity 14 and 24 and between the tracks with negative polarity 16 and 26 which, therefore , would be not in contact with each other .

[0101] For example , the elongated tubular body 30 can be made of a material selected among fibreglass , Linen fiber, carbon fibre , Acrylonitrile Butadiene Styrene , or ABS , Polymethyl methacrylate , or PMMA, polyethylene terephthalate modi fied with glycol , or PETG, or a combination thereof . In particular , the aforementioned material with a high sti f fness can be a composite material . More in particular, the aforementioned materials can be combined with at least a resin selected among an epoxy resin, vinyl resin, vinyl-ester resin, vinyl epoxy resin obtaining a composite material . For example , the aforementioned material can be fibreglass with polyester resin, fibreglass with epoxy resin, fibreglass with vinyl- ester resin, fibreglass with vinyl epoxy resin .

[0102] In particular, the elongated tubular body 30 can be made of a material with a Young' s modulus higher than 40 GPa, advantageously higher than 70 GPa, preferably higher than 90 GPa .

[0103] In particular, the elongated tubular body 30 can have an external diameter 0est comprised between 5 mm and 10 mm, advantageously comprised between 5 mm and 9 mm, preferably comprised between 4 mm and 7 mm . In particular, the elongated tubular body 30 can have an internal diameter 0int comprised between 2 mm and 7 mm, advantageously comprised between 2 mm and 5 mm, preferably comprised between 2 mm and 4 mm .

[0104] In an alternative embodiment of the invention, the elongated tubular body 30 can be made of a heat shrinkable material , and, however, at the same time , advantageously, transparent to the light radiation emitted by the first and second pluralities of LED-chips . In this case , the first and second COB-LED light strips 10 are 20 are easily positioned within the tubular body 30 when this is in an expanded configuration, per poi to move to a tightening configuration by heating, for example by heat application by means of an electrical , or gas , heat gun . In particular, in the tightening configuration, the tubular body 30 is , also in this case , able to keep the first and second COB-LED light strips 10 and 20 in the aforementioned assembled configuration .

[0105] As diagrammatically shown in the figures from 5 to 8 , the couple of tracks with positive polarity 14 and 24 and the couple of tracks with negative polarity 16 and 26 of conductive material , are , respectively, arranged to be connected to an electrical supply cable 90 . This is configured to be connected to a source of electrical power, for example the electric grid, or one or more batteries , by a connector device 50 .

[0106] In particular, the connector device 50 can be provided with at least a first and a second connection pin 51 and 52 having first end portions 51a and 52a conf igured to engage an engagement portion 2 of the multi-LED light module 1 between the first and second COB-LED light strips 10 and 20 , respectively, at the couple of tracks of conductive material 14 and 24 with positive polarity, and at the couple of tracks of conductive material 16 and 26 with negative polarity . The connection pins 51 and 52 of the connector device 50 are , furthermore , provided with second end portions 51b and 52b configured to be electrically connected to a positive terminal 91 and to a negative terminal 92 of the electrical supply cable 90 . More in detail , as diagrammatically shown in the figures 6A and 6B, the connection pins 51 and 52 are , respectively, forced between the tracks of conductive material with positive polarity 14 and 24 , and the tracks of conductive material with negative polarity 16 and 26 ensuring the electrical contact between them . Therefore , the connection pins 51 and 52 are , in practice , fixed between the first and the second COB-LED light strips 10 and 20 . This is possible because these latter are introduced in the elongated tubular body 30 , in particular housed within the longitudinal cavity 35 of this , with a predetermined play . Then, when the connection pin 51 and 52 are connected by a notch j oint between the first and the second COB-LED light strips 10 and 20 , the elongated tubular body 30 does not get deforming opposing an adequate resistance owing to the sti ffness of the material of which is made of , thus ensuring the electrical connection among the components . In particular, the tracks with positive polarity 14 and 24 of the first and second COB-LED strips 10 and 20 will not be in contact one with the other for all their length because , at the respective end portions , they will be in contact with the opposite faces of the first connection pin 51 of the connector device 50 . Analogously, the tracks with negative polarity 16 and 26 of the first and second COB-LED strips 10 and 20 will not be in contact with each other for all their length because , at the respective end portions , they will be in contact with the opposite faces of the second connection pin 52 of the connector device 50 . Also in this case , the high stif fness of the material of which the elongated tubular body 30 is made of , allows to guarantee both the electrical contact between the connection pins 51 and 52 , and, respectively, between the positive tracks 14 and 24 , and, the negative tracks 16 and 26 , at the end portions of the first and second strips 10 and 20 which, therefore , are substantially embedded between them, that the contact among the positive tracks 14 and 24 of the first and second strips 10 and 20 and the contact between the negative tracks 16 and 26 of the first and second strips 10 and 20 at the remaining part of their length .

[0107] As diagrammatically shown in figure 8 , can be preferably, provided a sheath 70 , for example made of a heat shrinkable material , or able to contract , which is positioned, in use , around the engagement portion 2 of the multi-LED light module 1 , of the connector device 50 and to an electrical connection portion 95 of the electrical supply cable 90 .

[0108] According to another aspect of the invention, diagrammatically shown in the figures 9 and 10 , a lighting system 100 comprises a first and at least a second multi- LED light module la and lb as described above with reference to the figures from 1 to 8 . More precisely, in this case , the first module la provides , as anticipated above , a first and a second COB-LED light strip 10a and 20a which are housed, in use , within a first elongated tubular body 30a in such a way to arrange the respective tracks of conductive material with positive polarity 14a and 24a superimposed one on the other, as well as the respective tracks of conductive material with negative polarity 16a and 26a . Analogously, the second module lb provides a first and a second COB-LED light strip 10b and 20b which are housed, in use , within a second elongated tubular body 30b in such a way to position the respective tracks of conductive material with positive polarity 14b and 24b superimposed one on the other as well as the respective tracks of conductive material with negative polarity 16b and 26b .

[0109] It is worth noting that the particular structure of module 1 , according to the invention, allows to emit light at 360 degrees , because each COB-LED strip 10 , 20 , which is provided in the module 1 , emits light at 180 degrees .

[0110] The connector device 50 described above with reference to the figures from 5 to 6B is , in this case , used for electrically connecting the first and second multi-LED light modules la and lb . In particular, in this case , the ends 51a and 52a of the first and second connection pins 51 and 52 of the connector device 50 engage with each other, respectively, between the couple of tracks with positive polarity 14a and 24a and between the couple of tracks with negative polarity 16a and 26a of the first module la . Instead, the ends 51b and 52b of the first and the second connection pins 51 and 52 engage with each other, respectively, between the couple of tracks with positive polarity 14b and 24b and between the couple of tracks with negative polarity 16b and 26b of the second module lb ( figure 10 ) . Arranging a determined number of modules 1 as described above in series one another, the system 100 of desired length L is obtained .

[0111] As diagrammatically shown in figure 11 , a tubular j oint 60 can be , furthermore , provided arranged, in use , between respective end portions 38a and 38b of the first and of the second multi-LED light module la and lb, in such a way to house the connector device 50 . In particular, the tubular j oint 60 is arranged to be removably engaged to the first and to the second end portion 38a and 38b by at least a first and a second engagement member 65 and 66 , for example screws , or similar removable fixing members . Even though, the connector device 50 is shown in the figures from 5 to 15 provided with a first and a second connection pin 51 and 52 , a skilled person in the art will have no di f ficulty to understand that the same can be provided with a greater number of connection pins , for example 3 connection pins 51-53 as illustrated for the embodiment shown in the figures from 16 to 20 described below, but even a number of connection pin greater than 3 . For example , the connector device 50 can be provided with at least 4 connection pins , solution that i s not shown in f igure for simplicity . In particular , the connection pins 51-53 of the connector device 50 , at the end at least of an end portion 51a-53a, or 51b-53b, can be tapered, or substantially wedge-shaped, in such a way to simpli fy their introduction between the COB-LED strips 10 and 20 of module 1 to which are destined, in such a way to force the same to depart for providing the notch j oint with the connection pins 51-53 and, therefore , guarantee the electrical connection with the respective track of conductive material 14 , 16 and 17 .

[0112] In the case that the connector device 50 is provided with 3 pins , a first pin is provided connected to the positive pole of the supplier for supplying, a second pin 52 is arranged to receive the control signals of the data from the control unit , or the controller . The control signal is transmitted by this pin to the first LED of the strip . A third pin is , furthermore , provided arranged to be connected to the negative pole of the supplier and is used as common grounding for supplying and the control signal . In particular, when a LED IC Pixel RGB strip is connected to the control unit or the controller, it is important to veri fy that the pins are correctly arranged along a line in order to avoid damages to the strip or the control device . Furthermore , it is advisable to veri fy the correspondence of the connectors between the LED strip and the control unit or the controller in order to guarantee the compatibility and a correct functioning of the lighting system .

[0113] In the figures from 5 to 15 are diagrammatically illustrated embodiments of a multi-LED light module 1 comprising, for example , monochromatic COB-LED strips 10 and 20 , that means formed by light emitting diodes ( LED) designed to emit light of a speci fic single colour .

[0114] In the alternative embodiment of the invention diagrammatically shown in the figures from 16 to 20 , the lighting system 100 comprises at least a multi-LED light module 1 as described above . However , di f ferently from the embodiments described above with reference to the figures from 1 to 11 , in this case , a supplementary elongated tubular body 30 ' is provided which can be made of an elastic material , in particular in an elastomeric material , for example a silicone rubber . In this case , the elongated tubular body 30 is provided made of a sti f f material , for example a material selected among fibreglass , in particular fibreglass with vinyl epoxy resin, Linen fiber, carbon fibre , Acrylonitrile Butadiene Styrene , or ABS , Polymethyl methacrylate , or PMMA, polyethylene terephthalate modi fied with glycol , or a combination thereof , can be arranged at an end portion 18 and 28 of the first and second COB-LED light strip 10 and 20 . In particular, the elongated tubular body 30 can be interposed between the first and the second COB-LED light strip 10 and 20 and il supplementary elongated tubular body 30 ' at least at an end portion 31 ' of this latter, or to be arranged around the supplementary elongated tubular body 30 ' at the aforementioned end portion 31 ' , in such a way to force , also in this case , in particular despite the presence of a supplementary elongated tubular body 30 ' in a material di f ferent from that of the elongated tubular body 30 , the tracks with positive polarity 14 and 24 of the first and second COB-LED light strip 10 and 20 one against the other, as well as the tracks with negative polarity 16 and 26 .

[0115] In the embodiment of the invention diagrammatically shown in the figures from 18 to 20 , the first and second COB-LED light strips 10 and 20 , at the respective second face 13 and 23 o f the first and the second substrates 11 and 21 , comprise respectively a first track of conductive material 14 and 24 with a pos itive polarity, a second track of conductive material 16 and 26 with a negative polarity, in particular for the cold light , and a third track of conductive material 17 and 27 with negative polarity, in particular for the warm light . As diagrammatically shown in the figures from 16 to 20 the connector device 50 , in this case can be provided with 3 connection pins 51 , 52 and 53 , each of which arranged to be positioned at a respective track of conductive material 14 , 16 and 17 .

[0116] The multi-LED light modules 1 diagrammatically shown in the figures from 16 to 20 can comprise , for example , COBLED strips 10 and 20 of COB-LED CCT type . In this case , therefore, the COB (Chip on Board) technology is used to integrate light-emitting diodes (LED) able to change the colour temperature (CCT, Correlated Colour Temperature) . This means that the LED strip 10, 20 is able to produce different tones of white, from the warmer to the cooler lighting, offering flexibility in choosing the desired lighting environment.

[0117] In particular, each COB-LED strip 10, 20 can be of IC Pixel RGB type. More in particular, each COB-LED strip 10, 20 can comprise a predetermined number of LED of RGB type (Red, Green, Blu) which can be individually controlled by an integrated management chip (IC, Integrated Circuit) for each single LED. This allows to the COB-LED strip 10, 20 to emit light in a wide range of colours and to create dynamic effects and light animations, because each LED can be independently controlled for changing colour and brightness. The LED IC Pixel RGB strips can be used for decorative purposes, ambient lighting and creative visualization .

[0118] In particular, at least a controller LED, which is not shown in figure for simplicity but anyway of known type, can be, furthermore, provided configured to control, for example remotely by a mobile phone, each COB-LED strip 10, 20, for example of IC Pixel RGB type.

[0119] In an alternative embodiment of the invention, diagrammatically shown in the figures from 21 to 33, a connector device 50' which can be used, in particular, in the multi-LED light module 1, but also as connector device for different applications, in particular for applications in electronics, for example for electrically connecting COB-LED strips, can comprise a support member 55 provided with at least a first track 54 and a second track 56 made of a conductive material . More in particular, the first and second tracks 54 and 56 , preferably made of copper, are configured to extend from a f irst to a second side 50a and 50b of the support member 55 opposite to each other . In particular, the connector device 50 ' is configured to be positioned, in operating conditions , with the first track 54 and the second track 56 , respectively, at first tracks of conductive material 14a, 24a and 14b, 24b with positive polarity superimposed to each other, and with second tracks of conductive material 16a, 26a and 16b, 26b with negative polarity superimposed to each other of a first and of a second COB-LED light strip 10a, 20a of a first lighting module la and a first and a second COB-LED light strip 10b and 20b of a second lighting module lb, as diagrammatically described above with reference to the figures from 5 to 10 . Alternatively, the connector device 50 ' can be used for electrically connecting, for example by a connection cable the first and second COB-LED strips 10 and 20 of a lighting module 1 ( figure 23 ) .

[0120] In an embodiment of the invention, diagrammatically shown from figure 21 to figure 24 , the support member 55 can be a flexible support member 55. In particular, the flexible support member 55 , for example in Polyamide , or Polyimide , in particular Kapton, or a similar material has a first and a second face opposite to each other 51 ' and 52 ' . More precisely, at least one between the first face 51 ' and the second face 52 ' is provided with the first track 54 , and with the second track 56 of conductive material . In particular, the aforementioned flexible support can have a length which is much higher than the width . Furthermore , the flexible support can have a very small thickness , in particular with respect to the width, for example a thickness less than 5 mm, advantageously less than 3 mm, for example a thickness of 2 mm . The flexible support member 55 from an extended configuration ( figure 21 ) , in particular planar, is , therefore , folded along a transversal line , preferably a centre line 150 , to be arranged in a folded configuration where it has a first and a second portion superimposed to each other and forms the aforementioned first and second sides 50a and 50b between which both the first track 54 and the second track 56 of conductive material extend . In the folded configuration of figure 23 , where the two portions of electrical connection 57 and 58 are opposite to each other, the connector device 50 ' can be , therefore , easily positioned between the aforementioned second face 13 of the first substrate 10 and the aforementioned second face 23 of the second substrate 20 , in such a way that the first track 54 is placed in contact with the tracks with positive polarity 14 and 24 by electrically connecting the same , and that the second track 56 is placed in contact with the tracks a negative polarity 16 and 26 , arranging the same in electrical contact , once that the assembled configuration of the lighting module 1 is obtained . In this way, it is possible to electrically connect the tracks with positive polarity 14 and 24 to each other by the first track 54 , which is present on the flexible support member 55 , and the tracks with negative polarity 16 and 26 by the second track 56 present on the flexible support member 55 . In particular , in this way, it is possible to connect the first and second COB-LED strips 10 and 20 of the lighting module 1 to a source of electrical power through the first and second electrical connection portions 57 and 58 of the connector device 50 ' . More precisely, the end portions , or the electrical connection 57 and 58 can be connected, in particular by welding points 93 , to a respective end of a positive wire 91 and of a negative wire 92 , respectively, of an electric cable 90 connected at the other end to a source of electrical power for electrically connecting the multi-LED light module 1 . The first and second electrical connection portions 57 and 58 can have , advantageously, a surface higher than the remaining portion of the track 54 , or 56 of conductive material to facilitate the connection, in particular the welding to the respective ends of the electrical connection cable 90 , in particular the positive wire 91 and the negative wire 92 .

[0121] The connector device 50 ' as described above with reference to figures from 21 to 24 can be also used for electrically connecting 2 multi-LED light modules la and lb adj acent to each other in such a way to obtain a product with a higher length, case not shown in figure for simplicity .

[0122] In an embodiment of the invention, diagrammatically shown in the figures from 25 to 30 , the aforementioned connector device 50 ' in addition to the first and second tracks 56a and 57a of conductive material on a first face 51 ' ( figure 25 ) . Analogously to the embodiment described above with reference to the figure from 21 to figure 24 , can be , furthermore , provided with a third and a fourth track 56b and 57b of conductive material on the second face 52 ' opposite to the first face 51 ' ( figure 28 ) . More in particular, the first and third tracks 56a and 56b of conductive material can be electrically connected at a first plurality of connection points or pads 81 . Analogously, the second and fourth tracks of conductive material 57a and 57b can be electrically connected at a second plurality of connection points or pads 82 . More precisely, at the aforementioned connection points or pads , 81 and 82 through holes can be made . At the aforementioned through holes can be , therefore , applied points of tin, or other conductive material for welding . In this way, the aforementioned electrical connection between the first and third tracks and between the second and fourth tracks of the connector device 50 ' is obtained . In this way, with respect to the previous case , the quantity of conductive material , in particular copper, that is used, is increased thus increasing, therefore , the ef ficiency of the electrical connection, in particular in terms of voltage drop .

[0123] In an embodiment of the invention, not shown in figure for simplicity, each track of conductive material can be covered by a thin thickness of a material , for example Polyimide for insulating the same from the outside . In this case , only the welding areas , i f present , can be left visible and those that will be used for the electrical connection together with other components .

[0124] The thin structure and the material of the support make the connector device adaptable to narrow spaces and complex shapes . The reduction of wiring and connectors simpli fy the assembly and reduces the problems of weight and incumbrance . In addition to the above , a connector device as described above allows to optimi ze the space , to reduce the wiring and to increase the reliability of the circuit, thanks to the capability of folding and the strength of the material that is used, in particular of Polyimide .

[0125] In particular, on at least one side 51' , or 52' , of support 55 a reference line 150 can be made, for example a weakening line by a local reduction of thickness, in order to indicate the zone where the fold of the connector device 50' has to be carried out.

[0126] Analogously to what has been written above with reference to connector device 50 diagrammatically shown in the figures 16, 17, 19 and 20, also in the case of the connector device 50' of figures from 21 to 30, in the case of COB-LED strips 10, 20 provided with a predetermined number of LED of RGB, (Red, Green, Blue) type, at least a supplementary track of conductive material 59 can be provided for individually controlling the different LEDs of RGB type by a management integrated circuit chip (IC) for each LED. In particular, the supplementary track 59 can be used for "directing" the LED IC strips, in particular to control each LED of the strip, or to drive a LED CCT strip (Correlated Colour Temperature) . This type of LED CCT strips integrates two types of white LEDs (typically "warm white" and "cool white") on the same strip, in such a way to change the colour temperature by mixing in different proportions the two channels.

[0127] In the further alternative embodiment diagrammatically shown in the figures 32 and 33, in the case of COB-LED strips 10, 20 provided with a predetermined number of LED of RGBW, (Red, Green, Blue, White) type in addition to the supplementary track 59 on the same side 51' of the first and second track 53 , as in the case of figure 31 , a further supplementary track 59 ' is provided at the opposite side 52 ' , in such a way to independently control each of the LEDs of RGBW type . The "warm white" LED and the "cool white" LED are connected to each other in parallel to the positive in common, whilst the negative of the two groups are separated and managed by a controller (normally a CCT dimmer or a two-channel LED controller PWM) . Changing the intensity of each channel , it is possible to gradually switch from the warm light ( in particular activating the warm channel ) to cold light (particularly activating the cool channel ) , or it is possible to keep both the channels turned on at hal f of the power to have an intermediate tone . Therefore , the supplementary track 59 , or 59 ' , can be used for separating the two LED circuits (warm / cool ) which, otherwise , could not be adj usted separately i f they would share the same negative line . As diagrammatically shown in the figures 31-33 , each supplementary track 59 and / or 59 ' can be provided with at least a connection portion 59a, or 2 connection portions 59a and 59b, for connecting the or each supplementary track 59 and / or 59 ' , to a source of electrical power, in particular by welding at the , or each, connection portion 59a and / or 59b, an end of an electrical connection cable having the other end connected to the aforementioned source of electrical power .

[0128] In the figures 34 and 35 a LED lamp 200 which can be obtained with the system 100 described above is diagrammatically shown . In this case , the system 100 can be advantageously, constrained at least at an end 201 , for example at a support basement 210 . In the alternative embodiment of figure 22 , instead, the LED lamp 200 is constrained at two di f ferent constrain portions 202 and 203 , for example between two columns 301 and 302 of an inside or outside environment of a building, which, therefore , form a constraint for the system 100 and allow to obtain the desired geometry . In particular, in the case that the lamp 200 must have a structure at least partly sel f-supporting, as in the case of figure 34 , it is preferable to use as material for the elongated tubular body 30 a material with a high sti f fness , in particular having a Young' s modulus higher than 40 GPa, for example fibreglass , in case combined with a resin such as a polyester resin, an epoxy resin, a vinyl-ester resin, or a vinyl epoxy resin, or Linen fiber , carbon fibre , etc .

[0129] In the further embodiments of figures 36 and 37 , the possibility is diagrammatically shown to obtain with the lighting system 100 , according to the invention, LED lamps 200 , only some portions of which are shown in figure for simplicity, having, in practice , any shape . In particular, in the case that as material for the elongated tubular body 30 a heat shrinkable material is used, for example Polyethylene , Polyvinylidene fluoride ( PVDF) , Kynar, Polytetrafluoroethylene ( PTFE ) , irradiated Polyolefin, silicone , or Viton . In this way, a highly flexible product can be obtained and easy to fold in such a way that it is possible to form it in the desired shape .

[0130] In particular, with the expression elongated tubular body 10 it is intended a tubular body having a transversal cross section 0est which is much smaller than the length L . More in particular, the tubular body 10 can have a transversal cross section 0est 50 times smaller than the length L, i.e. 50 -0est<L, advantageously a transversal cross section 0est 100 times smaller than the length L, i.e. lOO -0est<L. This makes the elongated tubular body 10 and, therefore, the whole lighting module 1, according to the invention, and, therefore, the system 100 obtained by assembling more light modules 1 as described above, highly flexible, but able to return in its original shape, thanks to the high stiffness of the material in which it is made of, in particular once that the or each constraint which keeps the elongated tubular body 10 same, and, therefore, the lighting module 1, or the system 100, in the desired shape, is removed.

[0131] The foregoing description of a specific embodiment will so fully reveal the invention according to the conceptual point of view, so that others, by applying current knowledge, will be able to modify and / or adapt for various applications such an embodiment without further research and without parting from the invention, and it is therefore to be understood that such adaptations and modifications will have to be considered as equivalent to the specific embodiment. The means and the materials to realise the different functions described herein could have a different nature without, for this reason, departing from the field of the invention. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation.

Claims

CLAIMS1. Multi-LED light module (1) comprising:- a first COB-LED light strip (10) comprising:- un first substrate (11) having a first and a second face opposite to each other (12,13) ;- a first plurality of LED-chips (15) positioned on said first face (12) of said first substrate (11) by a chip-on-board technology, said LED-chips (15) of said first plurality being arranged to emit light radiation in a predetermined range of wavelengths ;- at least a first and a second track of conductive material (14,16) positioned on said second face (13) of said substrate (11) , said first and second tracks of conductive material (14,16) having, respectively, a positive polarity and a negative polarity;- a second COB-LED light strip (20) comprising:- a second substrate (21) having a first and a second face opposite to each other (22,23) ;- a second plurality of LED-chips (25) positioned on said first face (22) of said second substrate (21) by a chip-on-board technology, said LED-chips (25) of said second plurality being arranged to emit light radiation in a respective predetermined range of wavelengths;- at least a first and a second track of conductive material (24,26) positioned on said second face (23) of said second substrate (21) , said first and second tracks of conductive material (24,26) having, respectively, a positivepolarity and a negative polarity;- an elongated tubular body (30) arranged to house, in use, said first and second COB-LED light strip(10.20) , said elongated tubular body (30) being made of a material transparent to said light radiation emitted by said first and by said second plurality of LED-chips (15,25) ; said multi-LED light module (1) being characterized in that said first and second COB-LED light strips(10.20) are positioned within said elongated tubular body (30) superimposed one on the other in such a way to obtain an assembled configuration where said second face (13) of said first substrate (11) and said second face (23) of said second substrate (21) face one another and in that said elongated tubular body (30) is configured to force said first and second COB-LED light strip (10,20) in said assembled configuration, where said tracks of conductive material with positive polarity (14,24) of said first and of said second COBLED light strip (10,20) are positioned in contact to each other at least for a part of their lengths, and said tracks of conductive material with negative polarity (16,26) of said first and second COB-LED light strips (10,20) are positioned in contact to each other at least for a part of their lengths.

2. Multi-LED light module (1) according to claim 1, wherein said elongated tubular body (30) is made of a material with a high stiffness having a Young's modulus higher than 40 GPa, in such a way to force said first and second COB-LED light strips (10,20) in said assembled configuration.

3. Multi-LED light module (1) according to claim 1, or 2, wherein said elongated tubular body (30) is made of a material selected among:- fibreglass;- fibreglass with polyester resin;- fibreglass with epoxy resin;- fibreglass with vinyl-ester resin;- fibreglass with vinyl epoxy resin;- Linen fiber;- Carbon fibre;- Acrylonitrile Butadiene Styrene, or ABS;- Polymethyl methacrylate, or PMMA;- Polyethylene terephthalate modified with glycol, or PETG; or a combination thereof.

4. Multi-LED light module (1) according to one or more of the previous claims, wherein said elongated tubular body (30) has an external diameter (0est) comprised between 5 mm and 10 mm, and an internal diameter (0int) comprised between 2 mm and 7 mm.

5. Multi-LED light module (1) according to claim 1, wherein said elongated tubular body (30) is made of a heat shrinkable material arranged to move from a rest configuration where is positioned externally to said first and second COB-LED light strips (10,20) to a tightening configuration by heating where said elongated tubular body (30) is arranged to tighten said first and second COB-LED light strips (10,20) to keep the same in said assembled configuration.

6. Multi-LED light module (1) according to claim 5wherein said heat shrinkable material is selected among :- Polyethylene;- Polyvinylidene fluoride (PVDF) ;- Kynar;- Polytetrafluoroethylene (PTFE) ;- irradiated Polyolefin;- Silicone;- Viton; or a combination thereof.

7. Multi-LED light module (1) according to one or more of the previous claims, wherein said first and second COB-LED light strips (10,20) at said respective second face (13,23) of said substrate (11,21) comprise respectively :- a first track of conductive material (14,24) with a positive polarity;- a second track of conductive material (16,26) with a negative polarity, in particular for the cold light;- a third track of conductive material (17,27) with negative polarity, in particular for the warm light.

8. Multi-LED light module (1) according to one or more of the previous claims, wherein said first and second tracks of said conductive material are arranged to be connected to an electrical supply cable (90) configured to be connected to a source of electrical power by a connector device (50) , said connector device (50) being provided with at least a first and a second connection pin (51,52) having first end portions (51a, 52a) configured to engage at an engagement portion (2) of said multi-LED light module(1) between said first and second COB-LED light strips (10,20) respectively at said first tracks of conductive material (14,24) with positive polarity superimposed to each other and with said second tracks of conductive material (16,26) with negative polarity superimposed to each other, and second end portions (51b, 52b) configured to be electrically connected respectively to a positive terminal (91) and to a negative terminal (92) of said electrical supply cable (90) .

9. Multi-LED light module (1) according to claim 8, wherein a sheath (70) made of a heat shrinkable material is, furthermore, provided, said sheath (70) being positioned, in use, around said engagement portion (2) of said multi-LED light module (1) , around said connector device (50) and around an electrical connection portion (95) of said electrical supply cable ( 90 ) .

10. Lighting system (100) characterized in that it comprises :- a first and at least a second multi-LED light module (la, lb) according to any claim from 1 to 9;- a connector device (50) arranged to electrically connect said first and said, or each, second multi-LED light module (la, lb) , said connector device (50) being provided with at least a first and a second connection pin (51,52) configured to engage between a first and a second COB-LED light strip (10a, 20a) of said first and of said second multi-LED light module (la, lb) , respectively, at first tracks of conductive material ( 14a, 24a; 14b, 24b) with positive polarity superimposedto each other, and at second tracks of conductive material ( 16a, 26a; 16b, 26b) with negative polarity superimposed to each other of a first and a second COB-LED light strip (10a, 20a) of a first lighting module (la) and of a first and a second COB-LED light strip (10b, 20b) of a second lighting module (lb) .

11. Lighting system (100) according to claim 10, wherein a tubular joint (60) is, furthermore, provided arranged, in use, between respective end portions (38a, 38b) of said first and second multi-LED light modules (la, lb) in such a way to house said connector device (50) .

12. Lighting system (100) characterized in that it comprises :- a first and at least a second multi-LED light module (la, lb) according to any claim from 1 to 9;- a connector device (50' ) arranged to electrically connect said first and said, or each, second multi-LED light module (la, lb) , said connector device (50' ) comprising a support member (55) provided with at least a first track (54) and a second track (56) made of conductive material, wherein said first and second tracks (54,56) are configured to extend from a first to a second side (50a, 50b) opposite to each other of said support member (55) , and wherein said connector device (50' ) is configured to be positioned with said first track (54) and said second track (56) , respectively, at first tracks of conductive material ( 14a, 24a; 14b, 24b) with positive polarity superimposed to each other, and of second tracks of conductive material ( 16a, 26a; 16b, 26b) with negative polarity superimposed to each other of a first and a secondCOB-LED light strip (10a, 20a) of a first lighting module (la) and of a first and a second COB-LED light strip (10b, 20b) of a second lighting module (lb) .

13. Lighting system (100) according to claim 12, wherein said support member (55) is a flexible support member provided with said first track (54) and with said second track (56) in conductive material at least at a face (51' ) and wherein said flexible support member (55) is configured to be folded at a transversal line in order to form substantially "U" shape where said first track (54) and said second track (56) extend between said first and said second side (50a, 50b) .

14. Lighting system (100) according to claim 12, wherein said support member (55) is a flexible support member provided with a first track (54a) and with a second track (56a) in conductive material at a first face ( 51 ’ ) and with a third track (54b) and a fourth track (56b) at a second face (52' ) opposite to said first face (51' ) and wherein said first track (54a) and said third track (54b) are electrically connected to each other by a first plurality of pads, or electrical connection points (81) , and said second track (56a) and said fourth track (56b) are electrically connected to each other by a second plurality of pads, or electrical connection points (82) , in such a way to increase the efficiency of the electrical connection.

15. Lighting system (100) according to claim 13, or 14, wherein said flexible support (55) is made ofPolyimide or Polyamide.

16. Lighting system (100) characterized in that itcomprises at least a first multi-LED light module (la) having :- a first COB-LED light strip (10) comprising:- a first substrate (11) having a first and a second face opposite to each other (12,13) ;- a first plurality of LED-chips (15) positioned on said first face (12) of said first substrate (11) by a chip-on-board technology, said LED-chips (15) of said first plurality being arranged to emit light radiation in a predetermined range of wavelengths ;- at least a first and a second track of conductive material (14,16) positioned on said second face (13) of said first substrate (11) , said first and second tracks of conductive material (14,16) having, respectively, a positive polarity and a negative polarity;- a second COB-LED light strip (20) comprising:- a second substrate (21) having a first and a second face opposite to each other (22,23) ;- a second plurality of LED-chips (25) positioned on said first face (22) of said second substrate (21) by a chip-on-board technology, said LED-chips (25) of said second plurality being arranged to emit light radiation in a predetermined range of wavelengths ;- at least a first and a second track of conductive material (24,26) positioned on said second face (23) of said second substrate (21) , said first and second tracks of conductive material (24,26) having, respectively, a positivepolarity and a negative polarity;- a supplementary elongated tubular body (30' ) arranged to house, in use, said first and second COBLED light strips (10,20) , said supplementary tubular body (30' ) being made of an elastomeric material transparent to said light radiation; said multi-LED light module (1) being characterized in that said first and second COB-LED light strips (10,20) are positioned within said supplementary elongated tubular body (30' ) superimposed one on the other in such a way to obtain an assembled configuration where said second face (13) of said first substrate (11) and said second face (23) of said second substrate (21) face one another, in that in said assembled configuration said tracks with positive polarity (14,16) of said first and of said second COB-LED light strip (10,20) are placed in contact to each other, in that in said assembled configuration said tracks with negative polarity (24,26) of said first and second COBLED light strips (10,20) are placed in contact to each other in that at least an elongated tubular body (30) is, furthermore, provided configured to be interposed between said first and second COB-LED light strips (10,20) and said supplementary elongated tubular body (30' ) at least at an end portion (31' ) of supplementary elongated tubular body (30' ) in such a way to force said tracks with positive polarity (14,24) of said first and second COB-LED light strips (10,20) one against the other and said tracks with negative polarity (16,26) of said first and second COB-LED light strips (10,20) one against the other.

17. Connector device (50' ) for applications in electronics, in particular for electrically connecting COB-LED strips, characterized in that it comprises a support member (55) provided, in use, with a first and a secondo side opposite to each other (50a, 50b) , in that at least a first track (54) and second track (56) are provided made of a conductive material which extends between said first and said second side (50a, 50b) , and in that said support member (55) is configured to be placed in contact, respectively, at said first and at said second side (50a, 50b) with two tracks with positive polarity (14,24) for electrically connecting to each other by said first track in conductive material (54) , and with two tracks with negative polarity (16,26) for electrically connecting to each other by said second track in conductive material (56) .

18. Connector device (50' ) according to claim 17, wherein said support member (55) is a flexible support member comprising a first and a second face opposite to each other (51' ,52' ) , wherein said flexible support member (55) is configured to move from an extended planar configuration, to a folded configuration where said flexible support member (55) is folded along a transversal line and said first and said at least a second track of conductive material (54,56) extend from said first to said second side (50a, 50b) .

19. Connector device (50' ) according to claim 18, wherein in said folded configuration of said flexible support member (55) , said first and said at least a second track of conductive material (54,56) have a substantially "U" or "V" shape.

20. Connector device (50' ) according to claim 18, or 19, wherein said support member (55) is made of Polyamide, or Polyimide.

21. Connector device (50' ) according to any claim from 17 to 20, wherein said support member (55) is, furthermore, provided with at least a supplementary track (59,59' ) of conductive material.

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