Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
  • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
  • F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources
  • F21L4/022—Pocket lamps
  • F21L4/027—Pocket lamps the light sources being a LED
• • A—HUMAN NECESSITIES
  • A42—HEADWEAR
  • A42B—HATS; HEAD COVERINGS
  • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
  • A42B3/04—Parts, details or accessories of helmets
  • A42B3/0406—Accessories for helmets
  • A42B3/0433—Detecting, signalling or lighting devices
  • A42B3/044—Lighting devices, e.g. helmets with lamps
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
  • F21V21/08—Devices for easy attachment to any desired place, e.g. clip, clamp, magnet
  • F21V21/084—Head fittings
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
  • F21Y2115/00—Light-generating elements of semiconductor light sources
  • F21Y2115/10—Light-emitting diodes [LED]

Definitions

• TITLE LIGHTING DEVICE FOR URBAN OR EXTRA-URBAN TRAVEL
• the technical field of the invention is that of lighting devices for urban and extra-urban journeys.
• the invention relates more particularly to a safety lighting device for urban or extra-urban travel, and particularly for a helmet.
• Helmets may further include a lighting device, particularly at the rear, in order to increase the wearer's visibility to other road users.
• Lighting devices having a great autonomy of operation are generally either bulky lighting devices, because they require the integration of enduring and bulky batteries, or lighting devices that are not very bright, because they have means low power lighting to minimize power consumption and thus increase battery life (ie duration of use).
• the batteries are generally parallelepiped in shape, adapting poorly to the curvature of the helmets.
• the user must make a choice between a bulky, heavy, unattractive lighting device once in position on a helmet, but guaranteeing adequate lighting and autonomy for daily use, or a device light lighting, compact but having in return a relatively reduced autonomy and / or poor lighting and difficult to see from a distance or in difficult conditions.
• the invention aims to provide a lighting device for a helmet making it possible to overcome the drawbacks of the prior art.
• the invention relates to a helmet lighting device comprising a protective housing having a generally curved shape and incorporating: means for storing electrical energy; an opto-electronic element capable of emitting light when traversed by an electric current; a control module controlling said opto-electronic element and supplied by said means for storing electrical energy; a printed circuit electrically connecting said opto-electronic element and said control module; said printed circuit comprising a central portion positioned in a central portion of said protective housing, said opto-electronic element and said control module being connected to the printed circuit at said central portion, the means for storing electrical energy comprising a first electrical energy storage unit and a second electrical energy storage unit, said first storage unit and said second storage unit being located on either side of the central portion of the printed circuit.
• the new distribution of the storage means according to the invention makes it possible to reduce the thickness of the lighting device for the same autonomy or deliverable power and therefore to obtain a curved housing with reduced thickness which integrates perfectly with the curvature of the helmet.
• the housing integrates perfectly with the curvature of the helmet
• the housing adapts to the geometry of the helmet which has a curved shape to match the shape of the wearer's skull.
• the housing conforms to the shape of the helmet, that is to say that the surface of the front face of the housing is substantially parallel to the outer surface of the helmet intended to come into contact with the rear face of the housing.
• the lighting device according to the invention makes it possible to more easily and more aesthetically integrate a lighting device on a helmet. Being less protruding from the surface of the helmet, the lighting device provides better protection in the event of a fall, in particular by reducing rotational acceleration, reducing the risk of the helmet catching on a surface and distributing it better. impact on the helmet. In addition, its compactness makes it compatible with the use of a folding helmet.
• the architecture proposed by the invention makes it possible to increase the overall length of the lighting device, making the direction indicators more visible, if they are present, in particular on the side of the helmet.
• the lighting device according to the invention may have one or more additional characteristics among the following, considered individually or in all technically possible combinations: said opto-electronic element comprises a first series of light emitting diodes and a second series of light emitting diodes and said printed circuit has two end portions, said first series of light emitting diodes being located at the central portion of the printed circuit and said second series of light emitting diodes being located at end portions of the printed circuit.
• the series of light-emitting diodes are therefore not located at the level of the storage means.
• the thickness of the lighting device is determined by the thickness at the storage means.
• each electrical energy storage unit is located between the central portion and an end portion of the printed circuit; the end portions of the printed circuit are provided at the ends of the protective case; at least part of the light emitting diodes of said first series of light emitting diodes and / or at least part of the light emitting diodes of said second series of light emitting diodes are positioned below and / or above each storage unit; each electrical energy storage unit is electrically connected to the central portion of the printed circuit; each end portion is connected to the central portion by a flexible conductor; said printed circuit is a rigid flexible printed circuit, said central portion being a rigid printed circuit and said end portions being flexible printed circuits electrical
• the invention also relates to a lighting system comprising a lighting device according to the invention and control means cooperating with the control module to activate or deactivate said light-emitting diodes of the second series of light-emitting diodes , said control means being a remote control or an accelerometer, or a gyrometer or a tactile control device or a voice control device.
• the subject of the invention is also a protective helmet comprising a lighting device according to the invention, the lighting device being integrated into the structure of the protective helmet.
• the subject of the invention is also a protective helmet comprising a lighting device according to the invention or a lighting system according to the invention.
• the lighting device according to the invention can have one or more additional characteristics among the following, considered individually or in all technically possible combinations:
• the protective housing has a front face and a rear face intended to come into contact with an external surface of a helmet via a mounting interface, the mounting interface being configured to be secured to the helmet, and to cooperate with a magnetic source, provided in the protective housing, to ensure a removable attachment by magnetic effect of said lighting device on the helmet, the mounting interface having at least one tooth, said tooth cooperating with a housing provided at said rear face of the housing protection, said tooth and said housing being configured to form a first stop, called normal stop, lim itanting the relative displacements of said protective casing in a first direction, called the normal direction, perpendicular to said face rear, when the lighting device is secured by magnetic effect to the mounting interface; said tooth and said housing are configured to form a second stop, called a vertical stop, limiting the relative movements of said protective housing in a second direction, called a vertical direction, perpendicular to the normal
• Figure 1 is a perspective view of an exemplary embodiment of a lighting device according to the invention.
• Figure 2 is an exploded view of the exemplary embodiment of the lighting device according to the invention illustrated in Figure 1.
• Figure 3 is a top sectional view illustrating the interior of the lighting device according to the invention illustrated in Figure 1.
• Figure 4 is a perspective view illustrating the rear part of the lighting device according to the invention illustrated in Figure 1 before mounting on a mounting interface.
• Figure 5 is a perspective view illustrating the rear part of the lighting device according to the invention illustrated in Figure 1 during mounting on the mounting interface illustrated in Figure 4.
• Figure 6 is a perspective view illustrating the rear part of the lighting device according to the invention illustrated in Figure 1 after mounting on the mounting interface illustrated in Figure 4.
• Figure 7 is a top sectional view illustrating the interior of another exemplary embodiment of the lighting device according to the invention.
• Figure 8 is a perspective view illustrating the rear part of the lighting device according to the invention illustrated in Figure 7.
• Figure 9 is a schematic representation of a protective helmet on which is mounted the lighting device according to the invention.
• Figure 10 is a perspective view illustrating the front part of the rear shell of the lighting device according to the invention illustrated in Figure 1.
• Figure 11 is a perspective view of another embodiment of the lighting device according to the invention.
• Figure 12 is an exploded view of the exemplary embodiment of the lighting device according to the invention illustrated in Figure 11.
• FIG 1 illustrates, in a perspective view, the front or external face (ie the face most visible to road users) of an exemplary embodiment of a lighting device 100 according to invention.
• FIG 2 illustrates an exploded view of the lighting device 100 according to the invention illustrated in [Fig 1], making it possible to view all the elements of the lighting device 100.
• FIG 3 is a sectional view of the lighting device 100 according to the invention illustrated in [Fig 1], making it possible to appreciate the curvature of the lighting device 100 as well as the reduced bulk obtained thanks to the particular layout of the various elements of the lighting device 100.
• FIG 4 illustrates, in a perspective view, the rear or internal face (ie the face intended to be facing the surface of a protective helmet) of the lighting device 100 according to the invention illustrated in [fig 1].
• the rear or internal face ie the face intended to be facing the surface of a protective helmet
• the lighting device 100 comprises a protective housing 110, for example of plastic material, forming the outer part of the lighting device 100.
• the protective housing 110 comprises for example two half-shells: a first front shell 111 and a second rear shell 112.
• FIG 10 illustrates, in a perspective view, the front or outer face of the rear shell 112 of the lighting device 100 according to the invention illustrated in [Fig 1].
• the two half-shells 111, 112 are configured to cooperate and thus reconstitute a hollow shell delimiting an internal space suitable for integrating all of the various elements necessary for the operation of the lighting device 100.
• the two half-shells 111, 112 are for example configured to fit together and to be kept integral with one another.
• the half-shells 111, 112 may include indexing means, such as for example a peripheral groove configured to cooperate with a peripheral tongue, so as to ensure the correct positioning of the two half-shells relative to one another. to the other.
• a seal (not shown) can also be positioned at the interface of the two half-shells 111, 112 so as to seal the protective housing 110 from the outside.
• the two half-shells 111, 112 further include means for maintaining and assembling the two half-shells 111, 112.
• the retaining means ensuring the assembly of the two half-shells are ad means - hoc making it possible to keep the two half-shells assembled, for example by clipping, screwing, ultrasonic welding, interlocking, etc.
• the two half-shells 111, 112 are held together by screwing.
• the rear half-shell 112 have orifices allowing the passage of screws adapted to cooperate with bores formed at the level of the front half-shell 111.
• the protective housing 110 may be formed by a single main hollow shell closed by a removable bottom, of small thickness, via means known for this purpose, for example by clipping or even screwing.
• the protective housing 110 may also include indexing means for positioning the removable bottom.
• the protective housing 110 comprises a rear face 113 intended to come into contact with the outer surface of a protective helmet and a front face 114 forming the visible part of the protective housing 110.
• the rear face 113 is advantageously located at the level of the rear shell 112.
• the front face 114 is advantageously located at the level of the front shell 111.
• FIG 9 illustrates a protective helmet 10 on which is mounted the lighting device 100 according to the invention.
• the protective housing 110 has a generally curved shape so as to fit into the curved profile of a protective helmet 10 used in particular for urban and extra-urban travel.
• the general curvature of the lighting device 100 is more particularly shown in [fig 3].
• the front face 114 also has a curved, substantially convex shape, for example parallel to the substantially concave shape of the rear face 113 so as to minimize the thickness and the bulk of the lighting device 100.
• the protective housing 110 is for example made of polycarbonate or even polypropylene to withstand external radiation, such as for example ultraviolet (UV), and shocks.
• UV ultraviolet
• the protective housing 110 can also be made entirely or partially in a flexible material such as for example silicone or polypropylene.
• a flexible material such as for example silicone or polypropylene.
• the front face 114 of the protective casing 110 advantageously has at least one transparent or translucent part allowing the diffusion of light from the inside of the protective casing 110 to the outside of the protective casing 110.
• the transparent or translucent part is for example made from a material of transparent or translucent thermoplastic polymer, such as PMMA (for polymethyl methacrylate), silicone or polypropylene for optimal light diffusion.
• PMMA for polymethyl methacrylate
• silicone for optimal light diffusion.
• the protective casing 110 also includes an opening 115, preferably formed on one side of the protective casing 110 or else at an upper portion or a lower portion of the protective casing 110, as shown in [fig 1]. This latter embodiment advantageously limits the infiltration of rainwater inside the protective housing 110.
• the opening 115 advantageously allows access to a connector 160 electrically and physically connected to a printed circuit 150 integrated inside the protective housing 110.
• the opening 115 can cooperate with a removable cap made of flexible material. , for example made of silicone or of TPU, thus making it possible to ensure the sealing of the protective case 110 at the level of the opening 115 vis-à-vis external conditions.
• the lighting device 100 further comprises: an opto-electronic element 120 capable of emitting light when it is traversed by an electric current; a driving module 130 configured to drive the optoelectronic element; electrical energy storage means 140 configured to supply electrical energy to the control module 130 and the opto-electronic element 120; an audible warning device 180.
• FIG 11 illustrates, in a perspective view, the front face of another exemplary embodiment of the lighting device 100 according to the invention.
• FIG 12 illustrates an exploded view of the lighting device 100 according to the invention, illustrated in [Fig 11].
• the front face 114 may also have a reflecting part 301, formed of reflectors for example, making it possible to reflect the light emitted by a vehicle or any other light source in direction of the front face 114 of the lighting device 100, and to help the user of the helmet to be more visible.
• the reflecting part 301 is advantageously placed in an area which does not cover the optoelectronic element 120. It can for example be located opposite the storage means 140 or a portion of the printed circuit 150.
• the opto-electronic element 120 is for example formed by a plurality of light-emitting diodes 120a, 120b (LED in English for Light-Emitting Diode) which can emit one or more colors.
• the optoelectronic element 120 comprises a liquid crystal display preferably combined with light emitting diodes.
• the light-emitting diodes 120a, 120b, the control module 130, the buzzer 180 can be soldered to the printed circuit 150, for example according to the surface-mounted component technique (SMD) or using pins .
• the opto-electronic element 120 consists of light-emitting diodes mounted directly on the substrate of a printed circuit according to the chip technique on printed circuit (COB in English for "Chip On Board”).
• the optoelectronic element 120 is curved to adapt to the curvature of the protective housing 110, adapting to the geometry of the helmet 10.
• the optoelectronic element is substantially parallel to the surface of the helmet 10 or of the front face 114.
• the substrate may consist of an aluminum foil, for example 0.6 mm thick, ensuring good heat dissipation.
• the opto-electronic element 120 consisting of light-emitting diodes mounted on a circuit according to the COB technique is flat. It can be electrically connected to the printed circuit 150 or else form an integral part thereof.
• the lighting device 100 comprises a first series of light-emitting diodes referenced 120a emitting, preferably, a red light, and a second series of light-emitting diodes referenced 120b preferentially emitting a light of yellow or orange color.
• the light-emitting diodes 120b capable of emitting an orange or yellow color are advantageously positioned at the level of the lateral ends of the lighting device 100 so as to be able to indicate the direction (left or right) that the user of the device lighting 100 will take, in particular in combination with a "flashing" control mode of the light-emitting diodes 120b via the control module 130.
• the opto-electronic element 120 of the lighting device 100 comprises a single series of light-emitting diodes mounted on a single printed circuit according to the COB method and preferably emitting , a red or white light.
• the single series of light-emitting diodes is for example arranged so as to form a loop of oblong or rectangular shape which can be interrupted for example in the zone covered by the connector 160.
• the opto-electronic element 120 of the lighting device 100 comprises: a series of light-emitting diodes mounted on a first printed circuit according to the COB method, preferably emitting a light of red color, and for example arranged so as to form a first loop of oblong or rectangular shape; a series of light-emitting diodes mounted on a second printed circuit according to the COB method, preferably emitting a white light, and for example arranged so as to form a second loop of oblong or rectangular shape, the second loop for example following the contours of the first loop, the second printed circuit being parallel to the first printed circuit.
• the opto-electronic element 120 of the lighting device 100 may further include two series of light emitting diodes emitting, preferably, an orange light, located respectively at each end of the protective housing 110 and by example arranged so as to form a U or V shape.
• said two series of light emitting diodes can follow the contours of the first loop or of the second loop located at the end of the corresponding protective housing 110 .
• the opto-electronic element 120 of the lighting device 100 comprises five series of light-emitting diodes, each mounted on a circuit according to the COB method, for example:
• Two primary series of light-emitting diodes preferably emitting a light of red or white color, located respectively at each end of the protective case and for example arranged so as to form a U or V shape;
• Two secondary series of light-emitting diodes preferably emitting an orange-colored light, located respectively at each end of the protective housing and for example arranged so as to form a U or V shape, each secondary series of light-emitting diodes for example taking the shape of a different primary series of light-emitting diodes;
• a series of light-emitting diodes preferably emitting a light of red or white color, connecting the two primary series of light-emitting diodes and the two secondary series of light-emitting diodes, for example so that all of the light-emitting diodes form a shaped loop oblong, located at least partly at the level of the central portion of the protective housing.
• the control module 130 is for example an intelligent device configured to allow control of the lighting power of the opto-electronic element 120, the color (s) of the lighting of the opto element electronic 120, in particular with the use of light-emitting diodes having several emission colors, the lighting mode (continuous or flashing), etc.
• the printed circuit 150 has a central portion 151 and two end portions 152 located on either side of the central portion 151 and electrically connected to the central portion 151.
• the central portion 151 of the printed circuit 150 advantageously comprises: the control module 130, a Man-Machine interface 170, for example a tactile switch or a push-button type switch, allowing a user to switch on or off. to switch off the lighting device 100, or else to choose an operating mode of said lighting device 100; the connector 160 allowing the connection of a power supply or of a device for recharging the means 140 for storing electrical energy; a first series of light-emitting diodes 120a, for example emitting red light.
• the end portions 152 preferably of smaller dimensions than the central portion 151, advantageously comprises at least one light-emitting diode of a second series 120b, for example emitting an orange or yellow light.
• the central portion 151 as well as the end portions 152 of the printed circuit 150 are rigid, that is to say made from a plate of rigid insulating material, for example in epoxy resin.
• the end portions 152 are then electrically connected to the central portion 151 via electrical conductors, for example by conductor cables or multi-stranded layers.
• the electrical conductors preferably flexible, being thin, they can be superimposed on the thickness of the electrical energy storage means 140 without significantly increasing the overall thickness of the lighting device 100.
• the electrical conductors can also run. above or below the storage means 140, further reducing the thickness.
• the printed circuit 150 is a rigid flexible printed circuit, also called “flex-rigid", forming a combination of "standard” rigid printed circuits and flexible printed circuits having the advantages of each and providing an advantageous solution in response to a need for space and reliability.
• Flexible printed circuits can be made from a thin plastic substrate, high performance type, such as polyimide or polyetheretherketone (PEEK).
• the printed circuit 150 comprises rigid portions (the central portion 151 and the end portions 152) on which the various electronic components are joined together, the various portions being electrically connected by flexible circuits.
• This second exemplary embodiment makes it possible to obtain better reliability compared to the first exemplary embodiment, described above, in particular by eliminating the connection between the different portions and therefore the additional welding steps.
• the electronic components are mounted on rigid supports which makes it possible to ensure greater reliability over time of the electrical connections.
• This second exemplary embodiment also makes it possible to reduce manufacturing costs by simplifying the assembly steps.
• the central portion 151 is rigid and the end portions 152 are flexible and directly connected, or welded, to the central portion 151.
• the end portions 152 being of small thickness, they can be superimposed on the electrical energy storage means 140 without significantly increasing the thickness of the lighting device 100.
• the advantages of robustness and compactness are combined.
• the end portions 152 are advantageously elongated in shape so that the light emitting diodes 120b are positioned at the end of the storage units 141, 142.
• the printed circuit 150 is entirely a flexible circuit, which makes it possible to further optimize the compactness of the electronic architecture of the lighting device 100 and also to reduce the number of welds.
• the printed circuit 150 does not include end portions 152 but only a central portion 151.
• the opto-electronic element 120 advantageously connected at the level of the central portion 151, for example by soldering, can be formed by a single series of light-emitting diodes referenced 120a, preferentially emitting a light of red color.
• the optoelectronic element 120 can also be formed by the association of a first series of light-emitting diodes referenced 120a emitting, preferentially, a light of red color, and a second series of light-emitting diodes referenced 120b emitting, preferably, a light of yellow or orange color, the second series of light-emitting diodes referenced 120b being advantageously located at the ends sides of the central portion 151 of the printed circuit 150.
• the means 140 for storing electrical energy are advantageously formed by the association of several storage units 141, 142 for electrical energy, for example a first storage unit 141 and a second storage unit 142, physically independent of one another and electrically connected to the electronic components, for example via the central portion 151 of the printed circuit 150, preferably by means of solders or electrical connectors.
• the storage units 141, 142 of electrical energy are, for example, batteries, cells, or even button cells, which may or may not be rechargeable.
• the storage units 141, 142 can be substantially parallelepipedal or cylindrical in shape.
• the protective case 110 advantageously comprises removable covers making it possible to easily open and close the protective case 110.
• the removable covers can for example be removed manually by a user and held in position on the protective housing 110 for example by a system of clips.
• the storage units 141, 142 are batteries that it is possible to recharge via the connection of an external power supply at the level of the connector 160.
• the management of the power supply and of the recharging of the charging units. storage 141, 142 are produced and controlled by the control module 130.
• the connector 160 is for example a Micro USB port or a USB Type-C port.
• the storage units 141, 142 are advantageously distributed on either side of the central portion 151 of the printed circuit 150 of the lighting device 100.
• the storage units 141, 142 are positioned in a region close to the lateral ends of the protective housing 110 of the lighting device 100.
• the storage units 141, 142 are positioned between the central portion 151 and an end portion 152 of the printed circuit 150. Thus, it is possible to optimize the thickness of the internal architecture of the electronic components of the device. lighting 100, and therefore minimize the overall thickness of the lighting device 100 because the storage units 141, 142 are located in areas devoid of electronic components.
• the storage means 140 are formed from more than two storage units, the storage means 140 being distributed over the length of the lighting device 100.
• the storage units 141, 142 are electrically connected to the control module 130 via the printed circuit 150, and more particularly via the central portion 151.
• the storage units 141, 142 can be lithium accumulators and more particularly lithium-ion accumulators.
• the storage units 141, 142 have for example a capacity of 200 mAh for a dimension of 25x20x4 mm.
• the lighting device 100 proposes to reduce the bulk. overall of the lighting device 100 by dividing the electrical energy storage means into several storage units 141, 142 of smaller dimensions and by distributing the different storage units 141, 142 at different locations specific inside the protective housing 110, preferably without superimposition with other electronic components of the lighting device 100.
• the use of a single storage unit positioned at one side of the lighting device and a printed circuit positioned at the opposite side of the lighting device also makes the lighting device unbalanced. .
• the positioning of the storage units 141, 142 symmetrically with respect to the central portion of the lighting device 100 also makes it possible to balance the weight of the lighting device 100 and also to obtain a symmetrical appearance. .
• the light-emitting diodes 120a, 120b are positioned on either side of the storage units 141, 142 so that the light-emitting diodes 120b intended to indicate the change of direction of the user are found at the left ends and right of the lighting device 100. Such a positioning thus makes it possible to limit the risk of confusion between the indication of left and right direction.
• the protective housing 110 has an elongated shape with respect to its height in order to clearly distinguish the indication of a left or right direction by the light-emitting diodes 120b by moving them away.
• the lighting device 100 has an elongated shape so as to extend over an extended portion at the level of the surface of the protective helmet 10 in particular to improve the lateral visibility of the lighting device 100, and in particular of the direction indication.
• the protective housing 110 forms advantageously an arc of a circle seen from above with respect to the protective helmet 10. The curvature of the lighting device 100 thus contributes to its lateral visibility.
• the lighting device 100 comprises a cover positioned between the front half-shell 111 and the printed circuit 150 and / or the storage means 140.
• the cover may be provided with openings to allow the light of the light-emitting diodes 120a, 120b to pass through. .
• the opto-electronic element 120 is positioned around, that is to say outside, the storage units 141, 142 and advantageously of the printed circuit 150.
• the optoelectronic element can thus form a loop of oblong or rectangular shape, for example.
• the advantage of this construction is that the opto-electronic element 120 does not overlap with the storage units 141, 142 which are generally bulky in terms of thickness.
• this construction improves the visibility of the lighting device 100 by maximizing the area delimited by the loop of the opto-electronic element 120.
• the storage units 141, 142 of electrical energy are advantageously electrically connected in series or in parallel and controlled by the control module 130.
• the buzzer 180 makes it possible in particular to indicate the operation of the light-emitting diodes 120b in flashing mode, or alternatively the navigation between different piloting modes. Transmitting power of the buzzer 180 may vary according to the ambient noise so that the user of the lighting device 100 can hear it regardless of the external environment.
• the buzzer 180 is located in the central part of the lighting device 100, having the greatest distance between the printed circuit 150 and the protective housing 110.
• a warning device sound 180 having larger dimensions, and therefore more powerful.
• the lighting device 100 may comprise: a communication module, for example of the radio communication, Bluetooth, Wifi type, making it possible to pair, for example, the lighting device 100 with a remote control to control via a Human / Machine Interface remote from the type and / or mode of lighting of the lighting device 100 and in particular to indicate a direction; a 1 to 3-axis accelerometer for detecting speed variations, for example to detect user acceleration or deceleration and thus change the type and / or mode of lighting accordingly; - a 3-axis gyrometer for measuring angular speed, for example to detect a user fall and thus modify the type and / or mode of lighting accordingly; software means associated with a microphone configured to allow voice recognition and to control the type and / or mode of lighting of the lighting device 100; a GPS guidance device interacting with the control module 130 to modify the mode and / or the type of lighting of the lighting device 100 and in particular to indicate a change of direction.
• a communication module for example of the radio communication, Bluetooth, Wifi type, making it possible to
• the protective housing 110 may also have longitudinally one or more articulation zones acting as articulation to modify the curvature of the lighting device 100 and thus allow it to better match the shape of the protective helmet 10.
• the articulation zones are zones of variable thickness , and in particular areas have a lower thickness.
• FIG 7 is a sectional view of an exemplary embodiment of the lighting device 100 according to the invention, having articulation zones.
• FIG 8 illustrates, in a perspective view, the rear or internal face of the lighting device 100 according to the invention, illustrated in [Fig 7]
• the protective casing 110 has two articulation zones located between the various electronic elements integrated inside the protective casing 110. More precisely, each articulation zone is located between a central portion 151 of the printed circuit 150 and a storage unit 141, 142. Each articulation zone consists of a groove 118, which has the consequence that the The thickness of the protective housing 110 is reduced at the level of the articulation zones.
• the fixing means are for example a double-sided adhesive integral with the rear face 113 of the lighting device 100.
• the lighting device 100 is, for example, a front or rear lighting device for a protective helmet 10.
• the lighting device 100 when the lighting device 100 is a lighting device intended to be positioned in front of a protective helmet 10, the latter may include light-emitting diodes capable of emitting a light different from a red light, for example preferably blue, yellow or even white.
• the lighting device 100 also comprises fixing means allowing the lighting device 100 to be secured to a protective helmet 10, as illustrated in [FIG. 9].
• the lighting device 100 according to the invention can also include fixing means configured to allow fixing, temporary or definitive, on a support, such as a bag, a cap, a hat, a piece of clothing. , a motorized vehicle or not such as for example a bicycle, a scooter, a motorbike. It can also be attached directly to the head with a headband.
• the fixing means are for example a double-sided adhesive integral with the rear face 113 of the lighting device 100.
• the fixing means are for example a system of the loop and hook and loop type.
• the fixing means can also be means allowing removable attachment of the protective housing 110 on the protective helmet 10.
• the fixing means comprise a first part configured to be attached directly to the helmet. protection 10, for example by means of an adhesive interface (for example a double-sided adhesive tape), and a second part configured to be secured to the protective housing 110 of the lighting device 100, for example by means of a second adhesive interface (for example a double-sided adhesive tape), the two parts being configured to cooperate so as to produce a removable mechanical and / or magnetic connection.
• the fixing means 200 are formed by the association of a configured mounting interface 210 to be secured directly to the support, for example a protective helmet 10, and locking means 220a, integral with the protective housing 110, configured to provide a removable mechanical connection and means configured to provide a removable magnetic connection of the device d lighting 100 on the mounting interface 210.
• FIG 5 is a perspective view illustrating the rear part of the lighting device 100 according to the invention illustrated in [Fig 1] during the mounting of the lighting device 100 on the mounting interface 210 illustrated in [fig 4]
• FIG 6 is a perspective view illustrating the rear part of the lighting device 100 according to the invention illustrated in [Fig 1] after mounting the lighting device 100 on the mounting interface 210 illustrated in [fig 4]
• the mounting interface 210 has at least a portion integrating particles of metallic material and / or of magnetic material.
• the mounting interface 210 is secured to the protective helmet 10 by the use of an adhesive element 203, for example by the deposition of a double-sided adhesive layer, positioned on one side of the interface of assembly 210 intended to be opposite the surface of the protective helmet 10.
• the mounting interface 210 is for example a metal plate.
• the mounting interface 210 is thus thin, making the fixing means 200 less bulky.
• the mounting interface 210 is made of a non-metallic and / or non-magnetic material and has portions incorporating particles of metallic material and / or of magnetic material such as magnets.
• the means configured to provide a removable magnetic connection of the lighting device 100 on the mounting interface 210 are formed by a magnetic source 220b housed inside the protective housing 110.
• the magnetic source 220b comprises one or more permanent magnets 220b, housed in the protective housing 110, preferably near the rear face 113.
• the magnetic source 220b in combination with the mounting interface 210 having portions of metal and / or magnetic particles allows a removable connection of the magnetic type.
• the user can position or remove the lighting device 100 easily and quickly from the mounting interface 210 and therefore from the protective helmet 10.
• the magnetic source 220b can be formed by a single permanent magnet 220b so as to reduce the manufacturing costs or the size of the lighting device 100 or even by a plurality of magnets 220b permanent so as to increase the magnetic power of the removable link and / or to distribute the magnetic forces over a larger area.
• the permanent magnet (s) 220b are positioned, at least in part, at the rear of the printed circuit 150, that is to say between the rear half-shell 112 and the printed circuit 150.
• the permanent magnet (s) 220b are positioned, at least in part, behind the storage means 140, that is to say between the rear half-shell 112 and the storage means 140.
• the permanent magnet (s) 220b are positioned as close as possible to the rear face 113 of the protective housing 110 so as to optimize the force of attraction with the metal or magnetic portions of the mounting interface 210.
• the number as well as the dimensions of the permanent magnets 220b are determined so as to exert a sufficient force of attraction to hold the lighting device 100 in place on a protective helmet 10, regardless of the conditions of use , while allowing easy decoupling for the user.
• the magnetic source is located on the mounting interface 210 and the protective housing 110 comprises at least a portion incorporating particles of metallic material and / or of magnetic material.
• the rear face 113 of the protective housing 110 has a cavity 116, delimited by a peripheral edge 117, allowing to introduce and to at least partially house the mounting interface 210.
• the cavity 116 can be set back relative to the rear face 113.
• the depth of the cavity 116 is advantageously identical to the thickness of the mounting interface 210 provided of the adhesive element 203 so that the rear face 113 of the protective housing 110 conforms to the surface of the protective helmet 10 when the lighting device 100 according to the invention is in position on a protective helmet 10. It It is preferable to provide a slight clearance between the rear face 113 of the protective housing 110 and the surface of the protective helmet 10 to be sure that the contact is made between the cavity 116 and the mounting interface 210.
• the cavity 116 is at the level of the rear face 113.
• the cavity 116 is then delimited only by the peripheral edge 117.
• the peripheral edge 117 forms a relief relative to the rear face 113 and has a height advantageously identical to or slightly less than the thickness of the mounting interface 210 provided with the adhesive element 203 in order to leave a slight clearance between the peripheral edge 117 and the external surface of the protective helmet 10 when the lighting device 100 according to the invention is in position on a protective helmet 10.
• the cavity 116 is delimited by a peripheral edge 117 forming a relief relative to the bottom of the cavity 116, and / or relative to the rear face 113 of the protective housing 110.
• the peripheral edge 117 advantageously forms a indexing means making it possible to facilitate the positioning of the protection box 110 around the mounting interface 210 and / or a peripheral stop making it possible to block the movements of the protection box 110 relative to the mounting interface 210 (while allowing an assembly clearance).
• the peripheral edge 117 is configured to block the movements of the protective housing 110 relative to the mounting interface 210, in the vertical direction Z and the direction X tangent to the rear face 113, in order to prevent the lighting device 100 unhooked inadvertently from the protective helmet 10 during urban or extra-urban travel.
• the magnetic link exerts a holding force in the direction Y normal to the rear face 113, but the force of adhesion of the contact between the mounting interface 210 and the rear face 113 of the protective housing 110 is insufficient. to keep it in position in the vertical Z and tangent X directions.
• the cavity 116 advantageously has an asymmetrical shape so as to avoid mounting the lighting device 100 in the wrong position.
• this physical coding limits the risk of reversing the left and right direction indicators by positioning the lighting device in the opposite direction to the mounting interface 210.
• the locking means 220a integral with the protective housing 110, configured to provide a removable mechanical connection, make it possible to carry out an additional blocking and to guarantee the maintenance in position of the protective housing 110, by magnetic effect, during normal use of the protective helmet 10 on the move.
• the fixing means 200 advantageously combine a connection by magnetic effect as well as a mechanical blocking blocking certain movements of the lighting device 100 when the latter is in position around the mounting interface 210 and thus avoiding decoupling and the loss of the lighting device 100.
• the locking means 220a make it possible to block the rotations of the protective housing 110 around the tangent axis X substantially parallel to the contact surface of the protective housing 110 with the protective helmet 10.
• the locking means 220a comprise at least one housing 205 formed in an upper part 117a of the peripheral edge 117 and at least one tooth 204 forming an extension of the body of the mounting interface 210, advantageously at level of the upper part of the mounting interface 210.
• the tooth 204 has a thickness adapted to fit inside the space delimited by the housing 205.
• the housing 205 is delimited by a first portion 206 projecting from the bottom of the cavity 116 and by a second portion 207 substantially perpendicular to the first portion 206, and substantially parallel to the bottom of the cavity 116.
• the two portions 206, 207 thus form a material return in the form of a hook.
• the tooth 204 of the mounting interface 210 is inserted inside the housing 205, that is to say in the space delimited by the two portions 206, 207.
• the cavity 116 may include openings 221 in the area located vis-à-vis the second portions 207 as illustrated in FIG. 10.
• This embodiment makes it possible to simplify the manufacturing process of the housing of protection 110 by molding while correctly securing the protective housing 110 on the mounting interface 210.
• the openings 221 are advantageously located outside the interlocking zone of the two half-shells 111, 112 in order to ensure the tightness of the protective housing 110.
• the lighting device 100 To position the lighting device 100 on the mounting interface 210, the lighting device 100 is approached from the surface of the protective helmet 10 on which the mounting interface 210 is positioned, the device for lighting 100 is brought with an inclination relative to a vertical plane so as to present the tooth 204 close to the housing 205. Then, by rotating the lighting device 100 around the tangent axis X, the device is folded down. lighting 100 around the mounting interface 210, so that the latter fits into the cavity 116 and that the tooth 204 in the upper part fits into the space delimited by the housing 205, having the effect of blocking the displacements of tooth 204 in the normal direction Y.
• the rotation around the tangent X axis and the positioning of the lighting device 100 on the protective helmet 10 are facilitated by the attraction between the magnets of the magnetic source 220b and the mounting interface 210 thus attracting the protective housing 110 against the mounting interface 210 as well as by the peripheral edge 117 which makes it possible to ensure the correct positioning of the mounting interface 210 in the cavity 116.
• the housing 205 is configured to form a first normal stop to limit, or even block (while allowing an assembly clearance), the relative movements of the upper part of the protective housing 110 in the normal direction Y substantially perpendicular to the surface of the protective helmet 10, which has the effect of blocking the rotations of the protective housing 110 around the tangent axis X, substantially parallel to the surface of the protective helmet 10.
• the housing 205 and tooth 204 are used to prevent detachment of protective housing 110 from mounting interface 210 at the top.
• the lighting device 100 being located at the front of the housing 205, the housing 205 blocks in rotation along the tangent axis X the forces due to gravity and to the accelerations undergone while taxiing.
• the protective casing 110 is in position, it is necessary to achieve a particular kinematics, in particular by pivoting the protective casing 110 upwards so as to first take off the lower part of the protective casing 110 from the helmet. protection 10. Since such a movement is not possible without the intervention of the user, it is ensured that the lighting device 100 remains in position on the protective helmet 10 during use and during a. urban or extra-urban travel.
• the housing 205 can also be configured to form a second vertical upper stop so as to limit, or even block vertically (while allowing an assembly clearance), the movements of the protective housing 110 along the vertical axis Z, in association with the lower part 117d of the peripheral edge 117 which forms a vertical lower stop. This is particularly the case when the housing 205 is hook-shaped.
• the blocking of the lateral movements of the lighting device 100 along the tangent axis X is achieved by the thickness of the peripheral edge 117 and more particularly by the lateral portions 117b, 117c of the peripheral edge 117 which form stops lateral when the protective housing 110 is in position on the mounting interface 210.
• the peripheral edge 117 can thus block the relative movements of the protective housing 110 with respect to the mounting interface 210 in directions normal to the Y direction , or tangent to the rear face 113.
• the housing 205 as well as the tooth 204 of the mounting interface 210 can extend longitudinally, along the tangent axis X, over a portion large enough to prevent pivoting of the protective housing 110 relative to the mounting interface 210 around the normal axis Y. Thus, the possibilities of rolling of the lighting device 100 are avoided or limited.
• the peripheral edge 117 has a housing 205 positioned in the center of the upper part 117a of the peripheral edge 117.
• the peripheral edge 117 has two housings 205 positioned at the ends of the upper part 117a of the peripheral edge 117 so as to form two support points and thus block the rotation of the protective housing 110 around the axis normal Y.
• the protective housing 110 has three housings 205 distributed over the upper part 117a of the peripheral edge 117 and which cooperate with three teeth 204 formed in the upper part of the '210 mounting interface.
• the teeth 204 have an inclination or an offset relative to the surface of the mounting interface 210.
• This inclination advantageously, in the direction of the cavity 116, makes it possible to make the errors of securing the device more visible. lighting 100 on the mounting interface 210. Indeed, if the teeth 204 are not inserted into the housings 205, the rear face 113 is sufficiently distant from the mounting interface 210 so that the magnetic link does not form. Indeed, the user thus realizing the mounting of the lighting device 100 in the wrong position.
• the permanent magnets of the magnetic source 220b can be replaced by a clipping system in the lower part of the cavity 116 or of the protective housing 110 in order to prevent upward tilting and detachment of the lighting device 100.
• the mounting interface 210 does not need to be metallic or magnetic.
• the lighting device 100 is directly integrated into the outer structure of the protective helmet 10, ie during the manufacture of the protective helmet 10.
• the protective housing 110 can be formed by the association of two half-shells as mentioned above, the rear half-shell 112 then being permanently attached to the protective helmet 10, the front half-shell 111 possibly being removable from the half-shell rear cover 112, in particular to allow access to the storage units if necessary.
• the front half-shell 111 is permanently on the protective helmet 10, the rear half-shell 112 being housed in the thickness of the protective helmet 10.
• the lighting device 100 is attached to the protective helmet 10 by means of a strap.
• the fixing means comprises a part which fits by sliding and clamping on the lighting device 100.
• the subject of the invention is also a protective helmet 10 comprising a lighting device 100 according to the invention integrated into the structure of the protective helmet 10 or also attached and secured, via fixing means, to the surface protective helmet 10.
• the protective helmet 10 according to the invention is a helmet allowing a user to protect his head when traveling in urban or extra-urban areas.
• the protective helmet 10 according to the invention is, for example, a helmet for a motorcycle, scooter, bicycle, scooter, monowheel, skate or skateboard or even for any means of movement requiring protection of the head.
• the protective helmet 10 according to the invention can be personal protective equipment such as a helmet dedicated to the practice of a sports activity or a firefighter's helmet.

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• 2020
  • 2020-06-04 FR FR2005860A patent/FR3111179B1/fr active Active
• 2021
  • 2021-06-04 EP EP21730915.2A patent/EP4162193A1/de active Pending
  • 2021-06-04 WO PCT/EP2021/065048 patent/WO2021245257A1/fr unknown

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