FR3065778A1 - LIGHTING DEVICE COMPRISING A MOBILE LIGHTING ELEMENT AND A SUPPORT, AND LIGHTING ELEMENT THEREFOR - Google Patents

Abstract

The present invention relates to a lighting device (10) comprising a movable lighting element (14, 15, 16) comprising a light source and first electromagnetic induction means electrically connected to the light source, and a support (12). ) defining a housing (24, 25, 26) configured to partially receive the movable lighting element (14, 15, 16) without forming an electrical connection therewith, and having electrically connected second electromagnetic induction means to an external power source. When the movable lighting element (14, 15, 16) is received in the housing (24, 25, 26), the first electromagnetic induction means are able to cooperate remotely with the second electromagnetic induction means of so to directly feed the light source. The lighting element (14, 15, 16) has no internal power source.

Description

© Publication no .: 3,065,778 (to be used only for reproduction orders)

©) National registration number: 17 53664 ® FRENCH REPUBLIC

NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY

COURBEVOIE © Int Cl ⁸ : F21 L 14/00 (2017.01), H 05 B 37/00, H 02 J 50/10

A1 PATENT APPLICATION

©) Date of filing: 27.04.17. (© Priority: © Applicant (s): POTEMINE ILIA - FR. @ Inventor (s): POTEMINE ILIA. ©) Date of public availability of the request: 02.11.18 Bulletin 18/44. ©) List of documents cited in the preliminary search report: See the end of this booklet (© References to other related national documents: ® Holder (s): POTEMINE ILIA. ©) Extension request (s): (© Agent (s): LAVOIX.

LIGHTING DEVICE COMPRISING A MOBILE LIGHTING ELEMENT AND A SUPPORT, AND ASSOCIATED LIGHTING ELEMENT.

FR 3 065 778 - A1

The present invention relates to a lighting device (10) comprising a mobile lighting element (14, 15, 16) comprising a light source and first electromagnetic induction means electrically connected to the light source, and a support (12 ) defining a housing (24, 25, 26) configured to partially receive the mobile lighting element (14, 15, 16) without forming an electrical connection with it, and comprising second electromagnetic induction means electrically connected to an external power source.

When the mobile lighting element (14, 15, 16) is received in the housing (24, 25, 26), the first electromagnetic induction means are capable of cooperating remotely with the second electromagnetic induction means of so as to directly power the light source. The lighting element (14, 15, 16) is devoid of

internal power source.

Lighting device comprising a movable lighting element and a support, and associated lighting element

The present invention relates to a lighting device comprising a movable lighting element and a support.

The present invention also relates to a mobile lighting element associated with such a lighting device.

The lighting device can in particular be used as a table lamp, a bedside lamp, a table lamp or any other lamp usable at home, in the office or any other place.

A large number of lighting devices is already known in the state of the art.

Most of these lighting devices are powered by an external power source such as an electrical network, via wired links.

It can therefore be seen that this type of connection imposes a certain number of constraints, in particular on the mobility of these devices, their arrangement as well as on their aesthetic form.

To overcome these drawbacks, wireless lighting devices provided with an internal power source such as a battery are also known in the state of the art.

However, a lighting device provided with such a battery generally has a limited autonomy, a relatively short life cycle as well as a high cost and weight.

In addition, it often happens that the bulb or any other lighting element constituting the main part of a wired or wireless lighting device becomes faulty. In this case, replacing it can be laborious, if not impossible.

The present invention aims to provide a lighting device having increased mobility compared to wired lighting devices and devoid of the drawbacks of wireless lighting devices related in particular to the use of a battery. In addition, the lighting device according to the invention makes it possible to carry out a replacement of its main lighting element in a particularly simple manner.

To this end, the invention relates to a lighting device comprising a mobile lighting element comprising a light source and first electromagnetic induction means electrically connected to the light source; a support defining a housing configured to partially receive the mobile lighting element without forming an electrical connection with it, and comprising second electromagnetic induction means electrically connected to an external power source.

When the mobile lighting element is received in the housing, the first electromagnetic induction means are able to cooperate remotely with the second electromagnetic induction means so as to directly supply the light source.

The lighting element has no internal power source.

According to other advantageous aspects of the invention, the lighting device comprises one or more of the following characteristics, taken alone or in any technically possible combination:

- The housing is configured to partially receive the lighting element according to a plurality of reception positions corresponding to different respective positions of the first and second electromagnetic induction means;

- Each modification of a position for receiving the mobile lighting element in the housing corresponds to a setting of the lighting intensity of this mobile lighting element;

- the mobile lighting element and the housing are configured so that the different reception positions are interchangeable with one another by a movement of a user not causing the mobile lighting element to exit the housing;

- the mobile lighting element forms a contact part intended to be received in the housing; the contact part having a rounded, preferably spherical, shape and the housing having a shape complementary to the shape of the contact part of the movable lighting element;

- The different receiving positions of the mobile lighting element in the housing are interchangeable with each other by rotation of the mobile lighting element in the housing;

- the mobile lighting element is in the form of a ball;

- the mobile lighting element comprises several light sources connected to the first electromagnetic induction means and arranged inside the mobile lighting element so as to illuminate this element in a homogeneous manner;

- the mobile lighting element comprises an at least partially transparent shell formed from an epoxy resin; the or each light source and the first induction means being preferably embedded in the epoxy resin;

- the first and second means of electromagnetic induction comprise coils; the coil corresponding to the first electromagnetic induction means being disposed inside the movable lighting element following a surface of a contact part intended to be received in the housing; the coil corresponding to the second electromagnetic induction means being disposed inside the support around the housing; and the support defines several complementary housings similar to said housing; the device comprising several complementary mobile lighting elements analogous to said mobile lighting element; each of the complementary housings being configured to partially receive said movable lighting element and each of the complementary movable lighting elements.

The invention also relates to a mobile lighting element intended for use in a lighting device as described above and comprising a light source and first electromagnetic induction means electrically connected to the light source; the first electromagnetic induction means being able to cooperate remotely with second external electromagnetic induction means of this element so as to directly supply the light source, and the lighting element being devoid of internal power source.

These characteristics and advantages of the invention will appear on reading the description which follows, given solely by way of nonlimiting example, and made with reference to the appended drawings in which:

- Figure 1 is a schematic perspective view of a lighting device according to the invention, the lighting device comprising in particular a lighting element according to the invention;

- Figure 2 is a schematic perspective view of the lighting element of Figure 1; and

- Figure 3 is a sectional view of part of Figure 1 along a longitudinal axis.

The lighting device 10 in FIG. 1 comprises a support 12 and a plurality of mobile lighting elements. For reasons of simplicity, only three mobile lighting elements 14, 15, 16 are illustrated in FIG. 1.

However, it should be understood that in the general case, the lighting device can include any number of movable lighting elements. This number is chosen for example as a function of a desired brightness value to be achieved by the lighting device and / or as a function of an aesthetic aspect of the lighting device.

The support 12 is for example in the form of a bar made of a dielectric material. This bar is elongated along a longitudinal axis X and defines, by each of the mobile lighting elements 14, 15, 16, a housing 24, 25, 26.

Each housing 24, 25, 26 is capable of partially receiving the corresponding mobile lighting element 14, 15, 16 and defines for this purpose a shape complementary to that of the corresponding mobile lighting element 14, 15, 16 , as will be explained later.

The housings 24, 25, 26 are for example arranged on a flat surface 28 of the support 12 along the longitudinal axis X.

The mobile lighting elements 14, 15, 16 are for example analogous, preferably identical, to each other. It is the same for the housings 24, 25, 26 which are, for example, analogous, preferably identical, to each other.

Thus, subsequently, only one of the mobile lighting elements with the corresponding housing, for example, the mobile lighting element 14 with the housing 24, will be described in detail.

The movable lighting element 14 is illustrated in more detail in FIG. 2.

Thus, as illustrated in this FIG. 2, the mobile lighting element 14 is in the form of a ball having in particular a contact part 31 intended to be received in the corresponding housing 24.

The contact part 31 is delimited by a separating plane P illustrated in FIG. 2. This plane P divides the ball in two parts by dividing for example into two equal parts a radius of the ball perpendicular to this plane P.

The movable lighting element 14 includes a shell 33 forming its outer surface and made of an at least partially transparent dielectric material.

According to an exemplary embodiment, the shell 33 is made of an epoxy resin by molding or by any other suitable way. Thus, the shell 33 according to this exemplary embodiment has a particularly impact-resistant structure.

Inside the shell 33, the mobile lighting element 14 includes first electromagnetic induction means 35, two light sources 36, 37 and a base 39.

The base 39 has for example a projecting structure of an internal surface of the shell 33 adapted to fix all of the internal components of the shell 33 at the level of the separating plane P.

The base 39 is made for example of the same material as the shell 33 and is molded, for example simultaneously with the latter.

According to another alternative embodiment, the base 39 has a material filling all the available internal space of the shell 33, thus forming a single structure with the shell 33. In this case, the internal components of the shell 33, namely the first electromagnetic induction means 35 and the two light sources

36, 37, are drowned in this matter. This then gives the lighting element 14 increased impact resistance.

The electromagnetic induction means 35 comprise a coil 41 and an electronic circuit 42.

The coil 41 has a winding of conductive wires making it possible to generate an electric current inside the coil 41 when it is placed in a magnetic field.

In the example of FIG. 2, the coil 41 has the shape of a ring with a radius which is smaller, for example twice, than the radius of the ball forming the movable lighting element 14.

According to the same example, the coil 41 and the electronic circuit 42 are arranged in the separator plane P.

The electronic circuit 42 is connected to the coil 41 and makes it possible to adapt the electric current generated by this coil 41 to the supply of the light sources 36,

37. This power supply operates directly, that is to say, without passing through a storage member such as a battery.

Each of the light sources 36, 37 has for example an LED bulb electrically connected to the electronic circuit 42 and capable of emitting light rays when it is supplied by this circuit 42.

In FIG. 2, the light sources 36, 37 are arranged on either side of the separating plane P so as to illuminate the mobile lighting element 14 in a substantially homogeneous manner.

According to another alternative embodiment, the mobile lighting element 14 comprises a single light source of the type suitable for illuminating the mobile lighting element 14 in a substantially homogeneous manner.

A section along the longitudinal axis X of the support 12 with the mobile lighting element 14 received in the housing 24 are illustrated in FIG. 3.

Thus, as can be seen in this FIG. 3, the housing 24 defines a spherical shape complementary to the shape of the contact part 31 of the movable lighting element 14.

With reference also to FIG. 3, the support 12 comprises second induction means 55 which are electrically connected to an electrical power source via an electric wire 57.

The second electromagnetic induction means 55 supplied by this power source are capable of generating an electromagnetic field near each of the housings 14, 15, 16.

In particular, for the housing 24, the second electromagnetic induction means 55 comprise a coil 61 and an electronic circuit 62.

Similarly, for each of the other housings 25, 26, the second electromagnetic induction means 55 comprise a coil and an electronic circuit. These coils and these circuits are for example connected together in series to form an electric chain connected to the electric wire 57. These coils and these circuits are analogous respectively to the coil 61 and to the electronic circuit 62 and will not be detailed later.

The coil 61 is for example analogous, preferably identical, to the coil 41 described above.

Thus, as in the previous case, the coil 61 has a winding of conductive wires by forming a ring. This ring is arranged inside the support 12 around the housing 14, for example parallel to the flat surface 28 of this support 12.

The coil 61 makes it possible in particular to generate a magnetic field inside the housing 24.

The electronic circuit 62 makes it possible to adapt the electric current coming for example from the electric wire 57 to the power supply of the light sources 36, 37 via the magnetic field generated by the coil 61. In particular, this circuit 62 presents for example a converter of type AC / DC known per se.

As can be seen in FIG. 3, the movable lighting element 14 is received in the housing 24 so that the separating plane P coincides with the flat surface 28 and the coils 41 and 61 are then arranged one in look of the other.

Such a reception position corresponds to the optimal position of the coils 41, 61 in which the electric current generated by the coil 41 is maximum. Thus, in this position, the lighting intensity of the light sources 36, 37 is maximum.

Other receiving positions are also possible. Thus, for example, in at least some of these positions, the coil 41 is located more apart and / or less aligned with the coil 61 so that the electric current generated by the coil 41 is less important than in the previous case.

This then has the effect of reducing the lighting intensity of the light sources 36, 37 when the contact part 31 remains at least partially in the housing 24. In addition, when this contact part 31 is completely removed from the housing 24, this has the effect of completely switching off the light sources 36, 37.

Different reception positions then correspond to different lighting intensity settings of the mobile lighting element 14.

To this end, according to an exemplary embodiment, the shell 33 of this movable lighting element is provided with a marking suitable for signaling different reception positions corresponding to different settings.

The operation of the lighting device 10 will now be explained.

Initially, the movable lighting elements 14, 15, 16 are for example extracted from their respective housings 24, 25, 26 and the supply of the support 12 is cut off.

When the operation of the lighting device 10 is necessary, a user activates the supply of the support 12 by activating for example a switch provided for this purpose.

The second electromagnetic induction means 55 therefore generate a magnetic field in each of the housings 24, 25, 26.

Then, the user places the mobile lighting elements 14, 15, 16 in the respective housings 24, 25, 26 according to different reception positions.

The mobile lighting elements 14, 15, 16 therefore light up with a lighting intensity dependent on the positions of reception of these elements.

Then, the user can adjust these intensities by a simple rotary movement of each of the mobile lighting elements 14, 15, 16 and this without removing these elements from the housings.

Indeed, a rotary movement exerted by a user on any of the mobile lighting elements 14, 15, 16 has the consequence of modifying its receiving position and therefore the intensity of its lighting. The user can thus achieve an interesting artistic effect or simply adjust the light intensity according to their needs. This adjustment is advantageously carried out continuously.

Furthermore, the user can extract any of the mobile lighting elements 14, 15, 16 from his housing without interrupting the operation of the other elements. In addition, when the mobile lighting elements 14, 15, 16 are identical or at least when the shapes of the contact parts of these elements are similar, the user can invert the positions of these elements in the support 12. C ' is in this sense that we use the word "mobile" in relation to these lighting elements.

The user can also replace at least one of the movable lighting elements 14, 15, 16 with another lighting element not supplied, for example initially with the lighting device 10. This then makes the replacement of a faulty lighting element.

In addition, when the user uses several lighting devices simultaneously, he can switch lighting elements between these different devices to, for example, vary the specific atmospheres created by these devices.

Finally, when the user needs to completely switch off the lighting device 10, he can simply turn each movable lighting element 14, 15, 16 so as to completely remove the corresponding contact part from the housing 24, 25 , 26 correspondent.

It is therefore understood that the present invention has a number of advantages.

First, the lighting device according to the invention achieves increased mobility compared to a conventional wired device and this without the use of additional power devices, such as a battery. In addition, as explained above, the replacement of any lighting element in particular in the event of its failure can be exercised in a particularly simple manner.

The adjustment of the light intensity of the lighting device is carried out in a particularly simple and somewhat surprising manner by the user. In addition, it is possible to achieve a particular artistic effect just by changing the reception positions of the lighting elements as well as their arrangement on the support.

It should be noted that such a setting can be achieved by using shapes other than the spherical shape for the lighting elements. Thus, for example, a cylindrical shape or any other rounded shape is particularly suitable for continuous adjustment. On the contrary, shapes with edges are suitable for discontinuous adjustment.

Finally, each lighting element can be made of a suitable material. Thus, for example, the use of an epoxy resin makes it possible to make such an element particularly solid and impact resistant. In practice, this makes the lighting element difficult to break during the manipulations made by the user, and therefore constitutes a particular advantage of the invention compared to conventional lighting elements such as bulbs which have, in known manner , a particularly high fragility. Other materials for the lighting element can still be used to achieve a similar resistance effect or a particular aesthetic effect.

Claims (12)

1. - Lighting device (10) comprising: - a mobile lighting element (14, 15, 16) comprising a light source (36, 37) and first electromagnetic induction means (35) electrically connected to the light source (36, 37); - A support (12) defining a housing (24, 25, 26) configured to partially receive the mobile lighting element (14, 15, 16) without forming an electrical connection with it, and comprising second means of electromagnetic induction (55) electrically connected to an external power source; when the mobile lighting element (14, 15, 16) is received in the housing (24, 25, 26), the first electromagnetic induction means (35) being able to cooperate remotely with the second means of electromagnetic induction (55) so as to directly supply the light source (36, 37); the lighting element (14, 15, 16) having no internal power source. 2, - Device (10) according to claim 1, wherein the housing (24, 25, 26) is configured to partially receive the lighting element (14, 15, 16) according to a plurality of receiving positions corresponding to different respective positions of the first (35) and second (55) electromagnetic induction means. 3. - Device (10) according to claim 2, wherein each modification of a position for receiving the movable lighting element (14, 15, 16) in the housing (24, 25, 26) corresponds to a lighting intensity adjustment of this mobile lighting element (14, 15, 16). 4, - Device (10) according to claim 2 or 3, wherein the movable lighting element (14, 15, 16) and the housing (24, 25, 26) are configured so that the different receiving positions are interchangeable with one another by a movement of a user not causing the movable lighting element (14, 15, 16) to exit the housing (24, 25, 26). 5.- Device (10) according to any one of the preceding claims, in which the mobile lighting element (14, 15, 16) forms a contact part (31) intended to be received in the housing (24, 25, 26); the contact part (31) having a rounded, preferably spherical, shape and the housing (24, 25, 26) having a shape complementary to the shape of the contact part (31) of the movable lighting element ( 14, 15, 16). 6. - Device (10) according to claim 5 taken in combination with claim 4, wherein the different receiving positions of the movable lighting element (14, 15, 16) in the housing (24, 25, 26 ) are interchangeable with each other by rotation of the mobile lighting element (14, 15, 16) in the housing (24, 25, 26). 7. - Device (10) according to any one of the preceding claims, in which the mobile lighting element (14, 15, 16) is in the form of a ball. 8. - Device (10) according to any one of the preceding claims, in which the mobile lighting element (14, 15, 16) comprises several light sources (36, 37) connected to the first electromagnetic induction means ( 35) and arranged inside the movable lighting element (14, 15, 16) so as to illuminate this element homogeneously. 9. - Device (10) according to any one of the preceding claims, in which the mobile lighting element (14, 15, 16) comprises a shell (33) at least partially transparent and formed of an epoxy resin; the or each light source (36, 37) and the first induction means (35) being preferably embedded in the epoxy resin. 10. - Device (10) according to any one of the preceding claims, in which the first (35) and the second (55) electromagnetic induction means comprise coils (41,61); the coil (41) corresponding to the first electromagnetic induction means (35) being arranged inside the movable lighting element (14, 15, 16) following a surface of a contact part (31) intended to be received in the housing (24, 25, 26); the coil (61) corresponding to the second electromagnetic induction means (55) being arranged inside the support (12) around the housing (14, 15, 16). 11.- Device (10) according to any one of the preceding claims, in which the support defines several complementary housings (25, 26) analogous to said housing (24); the device comprising several movable lighting elements (15, 16) 5 complementary analogous to said movable lighting element (14); each of the complementary housings (25, 26) being configured to partially receive said movable lighting element (14) and each of the complementary movable lighting elements (15, 16). 10 12, - mobile lighting element (14, 15, 16) intended to be used in a lighting device (10) according to any one of the preceding claims and comprising a light source (36, 37) and first electromagnetic induction means (35) electrically connected to the light source (36, 37); the first electromagnetic induction means (35) being able to cooperate in 15 distance with second electromagnetic induction means (55) external to this element so as to directly supply the light source (36, 37); the lighting element (14, 15, 16) having no internal power source. National registration number FA 837443 FR 1753664