EP2990723B1 - Beleuchtungsvorrichtung, die eine verbesserte halterung umfasst - Google Patents

Beleuchtungsvorrichtung, die eine verbesserte halterung umfasst Download PDF

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Publication number
EP2990723B1
EP2990723B1 EP15183258.1A EP15183258A EP2990723B1 EP 2990723 B1 EP2990723 B1 EP 2990723B1 EP 15183258 A EP15183258 A EP 15183258A EP 2990723 B1 EP2990723 B1 EP 2990723B1
Authority
EP
European Patent Office
Prior art keywords
lighting device
panel
support
seal
emitting diodes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15183258.1A
Other languages
English (en)
French (fr)
Other versions
EP2990723A1 (de
Inventor
Michel Petit
Didier Jean Charles Marie PETIT-BRISSON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Energies Alternatives & Solaires Solutions
Original Assignee
Energies Alternatives & Solaires Solutions
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR1458160A external-priority patent/FR3025292B1/fr
Priority claimed from FR1458159A external-priority patent/FR3025294B1/fr
Application filed by Energies Alternatives & Solaires Solutions filed Critical Energies Alternatives & Solaires Solutions
Publication of EP2990723A1 publication Critical patent/EP2990723A1/de
Application granted granted Critical
Publication of EP2990723B1 publication Critical patent/EP2990723B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F21V27/00—Cable-stowing arrangements structurally associated with lighting devices, e.g. reels 
    • F21V27/02—Cable inlets
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • 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
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
    • F21V23/002—Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F21V23/0471—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor detecting the proximity, the presence or the movement of an object or a person
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • 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

  • the present invention relates to a lighting device with light emitting diodes incorporating an improved support.
  • the invention relates to a lighting device according to claim 1
  • This configuration provides a simple and rigid support that allows to route the cable between the two plates.
  • the transparent cover 20 is not more detailed because it is known to those skilled in the art. Its geometric and dimensional characteristics vary depending in particular on the optical characteristics sought, the electronic card and the components present on this card.
  • the electronic card support 16 comprises a section 26 with a constant section in a direction 28 (represented by a center line).
  • the section comprises a rectilinear portion which corresponds, along the length of the profile 26, to the flat surface 18 and a plurality of alternating hollow and projecting shapes preferably distributed symmetrically with respect to a median axis perpendicular to the rectilinear portion. .
  • the section of the section 26 may vary depending on the desired heat exchange.
  • the profile 26 is hollow and comprises inside a conduit 32 which opens at each end 34 of said profile which are in planes approximately perpendicular to the flat surface 18.
  • This conduit 32 can be used for storing electrical energy storage means such as batteries, accumulators or others. Since the duct 32 is opening at both ends, naturally a flow of air is obtained which contributes to cooling the means of accumulation of electrical energy.
  • the electronic card support 16 comprises two plates 36, one for each end of the profile 26.
  • Each plate 36 is connected to the profile 26 by connecting means 38 and at least one shim 40 is provided to keep apart the plate 36 and the 26.
  • the connecting means 38 comprise several screws, for each of them, the plate 36 and the shim 40 each comprising a through hole, and the profile 26 a tapped hole.
  • the lighting device comprises a housing 42 containing at least one sensor 44 among a presence sensor, a brightness sensor, said housing 42 being remote from the electronic card 12 supporting the light-emitting diodes 14. This configuration allows to limit the risks of disturbing the operation of the sensor 44.
  • the housing 42 is supported by one of the plates 36. This configuration makes it possible to optimize the operation of the sensors, the housing 42 comprising a first face 46 facing towards the ground which is adapted for a presence sensor and a second face 48 upward which is suitable for a brightness sensor.
  • the openings made in the housing 42 for the sensors and the other elements can be grouped on the same face or arranged on different faces.
  • the housing 42 comprises at least one opening on at least one face.
  • the plate 36 provides the electronic card support function and comprises a face against which is pressed a second electronic card 50 supporting the sensor or sensors 44 and other electronic components.
  • the housing 42 has a recessed shape and a peripheral edge 52 pressed against the plate 36 so as to delimit with the latter a chamber 54 "sealed” in which is placed the second electronic card 50.
  • the lighting device comprises two electronic cards 12 and 50.
  • the electronic functions that vary according to the lighting power are implemented on the first electronic card 12 supporting the light-emitting diodes 14 and the electronic functions that do not vary according to the lighting power are implemented on the second card.
  • all the electronic functions can be grouped together on the same electronic card.
  • the lighting device comprises a "sealed" enclosure 24, 54 delimited by a support 16 or 36 and a cover (the transparent cover 20 or the housing 42) which comprises a peripheral edge pressed against the support and connected to the latter by a connection 56 sealed to air and water, said enclosure containing an electronic card 12 or 50.
  • a peripheral seal 58 is interposed between the support 16 or 36 and the cover 20 or 42.
  • the peripheral edge of the cover comprises a groove with a U-shaped cross section towards the support, which extends over the entire periphery and houses the peripheral seal.
  • the "sealed" enclosure 24, 54 comprises at least one opening 60 making it possible to communicate the inside and the outside of said "sealed” enclosure 24, 54, said opening 60 being closed off by a tight wall 62 with water and permeable to air.
  • the wall 62 is a very low-mesh fabric, such as for example a fabric sold by the company "Gore".
  • the water-tight and breathable wall 62 makes it possible to evacuate the surplus air and to avoid an overpressure when the temperature rises and the air present inside the enclosure " Waterproof 24, 54 expands.
  • the lighting device comprises at least one electrical cable passage 64 for conveying an electrical cable 66 between the inside and the outside of the "sealed" enclosure 24, 54.
  • an electric cable 66 has a circular section.
  • An electrical cable passage 64 includes a seal 68 (visible in detail on the Figures 4A and 4B ) of deformable material which comprises a through conduit 70 connecting a first end 72 and a second end 74 of the seal 68 and a side surface 76 approximately conical and concentric to the through conduit 70 and a seal support 78 (visible in detail on the Figures 9A and 9B ) traversed by a conical conduit 80 configured to receive the seal 68.
  • a seal 68 visible in detail on the Figures 4A and 4B
  • deformable material which comprises a through conduit 70 connecting a first end 72 and a second end 74 of the seal 68 and a side surface 76 approximately conical and concentric to the through conduit 70 and a seal support 78 (visible in detail on the Figures 9A and 9B ) traversed by a conical conduit 80 configured to receive the seal 68.
  • the through conduit 70 of the seal 68 has a convergent portion and a divergent portion from one end to the other, with a reduced section 82 (junction between the convergent and divergent portions).
  • the reduced section 82 has a diameter equal to the outside diameter of the electrical cable 66 to allow the seal 68 to slide on the electrical cable 66.
  • the seal support 78 comprises a bearing face 84 parallel to the electronic card 12, 50 and oriented towards the latter or towards the enclosure (24, 54).
  • the duct 80 extends from an outer face 86 to the bearing face 84 and has a conical shape with an axis perpendicular to the bearing face 84, the duct 80 having a larger section at the face support 84 only at the outer face 86.
  • the seal support 78 is pressed against the electronic card 12, 50 or an interposed plate 36.
  • the electronic card 12, 50 and the optional interposed plate 36 respectively comprise a through hole 88, 90 with a section equal to or slightly greater than that of the electric cable 66.
  • the electrical cable passage 64 comprises compression means for compressing the gasket 68 between the gasket support 78 and the electronic card 12, 50.
  • these compression means comprise at least one bolt 92 which passes through the joint support 78, a possible interposed plate 36 and the electronic card 12 or 50.
  • the invention is not limited to this variant for the compression means which may take the form of one or more screws, one or more rivets or one or more other connecting means.
  • the duct 80 and the gasket 68 are dimensioned so that in the absence of compression as illustrated in FIG. Figure 9A when the side surface 76 of the gasket 68 is in contact with the gasket support 78, the gasket 68 is protruding from the support face 84 of the gasket support 78.
  • the map 12 or the interposed plate 36 is pressed against the bearing face 84 and exerts a longitudinal compressive force (perpendicular to the bearing face 84) on the seal 68 which is positioned in the conduit 80.
  • the seal 68 exerts a centripetal compression force (perpendicular to the longitudinal direction) on the electric cable 66 which strengthens the seal.
  • the joint support 78 remains unchanged. Only the gasket 68 is adapted to the electric cable. Thus, it is possible to have several sizes for the seals 68, the section of the through duct 70 being different from one format to another, the seals 68 having all the identical side surfaces.
  • the seal support 78 and the plate 36 are two separate parts, the plate 36 being interposed between the seal support 78 and the electronic card 50.
  • the seal support 78 also performs the function of hold 40.
  • the seal support 78 has a cylindrical shape and comprises at least one branch 94, in this case three branches 94 which each comprise at their ends a ring 96 which forms a spacer and which is traversed by the connecting means 38 .
  • the seal 68 has a Shore A hardness of the order of 50 to obtain a good radial compression of the electric cable 66.
  • the seal 68 is made of thermoplastic elastomer, such as SEBS.
  • the electronic card 12 or 50 can be shifted with respect to the cable passage 64 and does not include passage holes 88, 90.
  • the lighting device comprises a compression plate distinct from the electronic board for compressing the gasket 68.
  • the lighting device comprises at least one compression plate which may be the electronic card 12 or 50, the plate 36 or another plate, said compression plate comprising a through hole 88 with a section equal to or slightly greater than that of the electric cable 66.
  • the one or more electrical cables can be inserted into a tube, the gasket 68 being compressed against the outer wall of the tube in which the electric cable or cables pass. Therefore, the invention is not limited to the passage of at least one electrical cable.
  • the invention allows the passage of at least one element comprising at least one electrical cable, this element being either the electric cable or a tube containing at least one electric cable.
  • the seal 68 comprises a single through conduit 70 or more conduits 70 each intended for the passage of an element comprising at least one electrical cable.
  • the cable passage according to the invention allows its mounting from a single face, namely the face on which the light emitting diodes are reported.
  • a perfectly tight cable passage even if it is difficult to access such as for example if it is remote from the ends of a profile 26 or if the support 16 is already fixed and its rear face (opposite to that receiving the cover 20) is no longer accessible.
  • the housing 42 has an opaque wall and comprises an opening 98 intended for the presence sensor, visible in detail on the figure 5 .
  • This opening 98 is closed by a cap 100.
  • the cap 100 comprises a cylindrical duct 102 surmounted by a head 104.
  • the cylindrical duct 102 has a diameter that increases slightly from its end connected to the head 104 to its other end intended to come inside the housing 42.
  • the head 104 comprises a cylindrical lower portion 106 surmounted by a dome 108 of a transparent material for the light.
  • the cylindrical lower portion 106 of the head has a diameter greater than that of the cylindrical duct 102.
  • the cylindrical duct 102 is connected to the cylindrical lower part 106 of the head by a radial wall 110 which extends in a plane perpendicular to the axes of the cylindrical duct 102 and the cylindrical lower portion 106 of the head.
  • the lighting device comprises a seal 112 interposed between the cap 100 and the edge 114 of the wall of the housing 42 defining the opening 98.
  • This seal 112 is illustrated in detail on the figure 6 . It comprises a cylindrical base 116 surmounted by a cylindrical head 118 which has an outside diameter greater than that of the cylindrical base which has a diameter approximately equal to that of the opening 98.
  • the cylindrical base 116 comprises outside and at its lower end a flange 119 whose outer diameter is greater than that of the opening 98.
  • This flange 119 is separated from the head 118 by a distance approximately equal to the thickness of the edge 114 of the wall of the housing.
  • the flange 119 has a conical shape to promote its passage through the opening 98.
  • the base and the head are traversed by a conduit 120 configured to house the cap 100.
  • This conduit 120 comprises in the upper part a countersink 122 whose inner diameter is equal to that of the head 104 of the cap 100.
  • the conduit 120 comprises under the countersink 122 a median portion 124 with a diameter which is reduced to an end portion 126 which has a constant diameter.
  • the height of the middle and end portions 124 and 126 is smaller than the height of the cylindrical duct 102 of the cap 100 so that the latter protrudes from the gasket 112 when the radial wall 110 of the cap 100 comes against the bottom 128 of the counterbore 122.
  • the cylindrical duct 102 of the cap 100 has, at its lower end, an outside diameter greater than that of the end portion 126 so that the cap 100 is held in the seal 112.
  • the wall 129 of the seal head 112 surrounding the counterbore 122 has a thin thickness of the order of 1 to 3 mm.
  • the seal 112 is made of deformable material. It has a Shore A hardness of the order of 40. According to one embodiment, the seal 112 is made of thermoplastic elastomer, such as for example in SEBS.
  • the bottom 128 of the countersink 122 comprises a circular rib 130 projecting which surrounds the duct 120.
  • This rib 130 has a height of the order of 0.5 to 1 mm and a thickness of the order of 0.5 to 1 mm. . It is spaced from the conduit 120 by a distance of less than 1 mm.
  • This circular rib 130 promotes the maintenance of the cap 100 in the seal 112 and improves the seal between these two elements.
  • the radial wall 110 of the cap crushes the circular rib 130.
  • the crushing of this circular rib 130 causes the deformation of the wall 129 of the seal head 112 whose end upper deforms towards the inside of the joint as illustrated by the arrows 132.
  • the seal 112 exerts a compressive force on the head of the cap 100 which improves the seal.
  • the seal 122 may also be used to improve the seal between a cap and the edge of an opening in the transparent cover 20.
  • the support 16 is a panel 134 which comprises a cellular structure 136 interposed between two flat plates 138, 138 '.
  • the sandwich structure of the panel 134 gives it high mechanical properties.
  • This panel 134 is metallic, for example aluminum alloy.
  • the honeycomb structure 136 comprises a plurality of ducts having axes parallel and perpendicular to the plates 138, 138 '. Each duct is delimited by at least one wall 140 perpendicular to the plates 138, 138 '.
  • the honeycomb structure 136 is a honeycomb structure.
  • the invention is not limited to this hexagonal form.
  • the ducts of the honeycomb structure may have circular, square or other sections.
  • the panel 134 has two flat parallel faces which improves its integration.
  • the electronic card 148 is pressed against a first face 138E of one of the two plates 138 in contact with the cellular structure 136 which contributes to the heat transfer.
  • the plate 138 is interposed between the honeycomb structure 136 and each electronic card 148.
  • the plate 138 being completely flat, the surface contact between the electronic card 148 and the plate 138 ensures optimal heat transfer between the electronic card 148 and the panel 134.
  • the walls 140 of the cellular structure 136 ensure the heat transfer between the two plates 138, 138 '.
  • the heat calories are evacuated via the plate 138 '.
  • the walls 140 have a thickness of the order of 0.2 to 2 mm.
  • the plates 138, 138 ' have a thickness of the order of 0.5 to 3 mm.
  • the panel 134 has a thickness of 10 to 50 mm depending on its area.
  • the ducts of the honeycomb structure 136 each have an area of the order of 1 cm 2 .
  • the supports of the prior art are designed to have a significant thermal inertia to evacuate the heat generated by the light emitting diodes. With against feet, the support of the invention has a low thermal inertia which gives it a great reactivity to evacuate the calories.
  • the panel 134 is industrially produced in large quantities because it is intended for other applications. Therefore, its cost is lower than a support of the prior art.
  • honeycomb structure is perfectly connected to the plates 138, 138 'so that the cells are sealed.
  • the lighting device comprises a system for regulating the heat emitted by the light-emitting diodes.
  • the lighting device comprises a control 142 ensuring the regulation of the supply current of the light-emitting diodes 144 and a temperature sensor 146 implanted in the vicinity of the light-emitting diodes 144 which is connected to the control 142.
  • the control 142 regulates the supply current of the light-emitting diodes 144 so that the temperature measured by the temperature sensor 146 remains below a threshold temperature.
  • this threshold temperature is lower than the maximum operating temperature of the light emitting diodes.
  • the threshold temperature is of the order of 65 °.
  • the temperature sensor 146 is fixed on the electronic card 148 supporting the light-emitting diodes 144.
  • FIGS. 14A, 14B, 15A, 15B, 15C , 16A, 16B, 16C, 17 and 18 variants of routing of a power cable in the support 16 have been illustrated.
  • the support 16 of the lighting device comprises a panel 134 with a honeycomb structure 136 interposed between two flat plates 138, 138 ', each plate 138, 138' comprising an outer face 138E, 138'E and an inner face 1381, 138'I oriented towards the honeycomb structure 136.
  • the lighting device comprises an electronic card 148 pressed against the outer face 138E and covered by a cover 150 which comprises a peripheral edge sealingly connected to the outer face 138E.
  • a seal 152 is interposed between the peripheral edge and the outer face 138E.
  • the panel 134 comprises at its peripheral edge a peripheral seal 154 which extends over the entire length of the peripheral edge and between the two plates 138, 138 '.
  • the peripheral seal 154 is made of resin and obtained for example by overmolding.
  • the lighting device comprises a power cable 156 connected to the electronic card.
  • the electronic card comprises a through hole 158.
  • the power cable 156 passes through the peripheral seal 154 to be disposed between the two plates 138, 138 '.
  • the power cable 156 passes through a cover 187 to be disposed between the two plates 138, 138 '.
  • the illumination device comprises a gland 160 surrounding the power cable 156, positioned at the peripheral seal 154 or the cover 187 and configured to allow said power cable 156 to traverse the peripheral seal. 154 or the hood 187 in a sealed manner.
  • the cable gland 160 includes a first portion with clamping members and a second portion that is screwed to the outside of the first portion so as to tighten the clamping members around the power cable 156, the first portion of the gland being embedded in the peripheral seal 154 or integral with the cover 187.
  • the panel 134 comprises a groove 162 which extends from the peripheral edge of the panel to approximately plumb with the through hole 158 of the electronic card 148.
  • This groove 162 has a depth less than the thickness of the panel 134 and extends from the outer face 138E of the first plate 138 and at least a portion of the height of the honeycomb structure 136.
  • the groove 162 extends from the face outer 138E of the first plate 138 to the inner face 138 'I of the second plate 138'.
  • the groove 162 has a width and a depth adapted to allow the positioning of the supply cable 156 in the cellular structure 136.
  • the groove 162 is filled with a filling material 164 ensuring fluid tightness.
  • the filling material 164 is a resin, in particular the same as that used for the peripheral seal 154.
  • the outer surface 166 of the filling material 164 is surfaced so as to obtain a flat surface substantially in the same plane as the outer face 138E of the plate 138, to obtain an optimum seal with the seal 152.
  • the panel 134 comprises a groove 168 which extends from the peripheral edge of the panel 134 to a termination 170 offset outwardly relative to the peripheral edge of the cover 150. According to this configuration, the bleeding 168 is not secante with the seal 152 of the cover 150, which tends to improve the seal.
  • the panel 134 comprises at least one conduit 172 which extends from the termination 170 of the groove 168 to the outer face 138E of the plate 138, at the right of the position of the through hole 158 of the electronic card.
  • the duct 172 comprises a first perforated section 174 in the honeycomb structure 136 and approximately parallel to the plates 138, 138 'and a second perforated section 176 which extends from the outer face 138E of the plate 138 until the first perforated section 174.
  • These perforated sections 174 and 176 have a diameter sufficient to allow the routing of the supply cable 156.
  • the groove 168 is filled with a filling material 178 ensuring fluid tightness.
  • the filling material 178 is a resin, in particular the same as that used for the peripheral seal 154.
  • the bleeding 168 has a width and a depth adapted to allow the positioning of the supply cable 156 in the cellular structure 136.
  • the panel 134 comprises a cavity 180 situated between the peripheral edge of the panel 134 and the cover 150.
  • This cavity 180 makes it possible to house at least one electrical or electronic element 182, such as for example a connection between two power cables and / or a presence sensor and / or a brightness sensor and / or an electronic card.
  • electrical or electronic element 182 such as for example a connection between two power cables and / or a presence sensor and / or a brightness sensor and / or an electronic card.
  • This cavity 180 is obtained by cutting the plate 138 and the honeycomb structure 136 to the plate 138 'which remains intact.
  • the cavity 180 is delimited by a peripheral edge 184 which extends between the two plates 138 and 138 'and a bottom 186 which corresponds to a portion of the inner face 138' I of the plate 138 '.
  • the peripheral edge 184 of the cavity 180 comprises a peripheral seal 188 which extends over the entire length of the peripheral edge 184 and between the two plates 138, 138 '.
  • the peripheral seal 188 is made of resin and obtained for example by overmolding.
  • the lighting device comprises a cover 187 whose peripheral edge bears against the outer face 138E of the plate 138 all around the periphery of the cavity 180.
  • a seal 190 is interposed between the peripheral edge the cover 187 and the plate 138 to complete the seal.
  • the cover 187 may be made of an opaque or transparent material.
  • the panel 134 For the path of the power cable 156, the panel 134 comprises a first conduit 191 between the peripheral edge of the panel 134 and the cavity 180 and at least a second conduit 192 between the cavity 180 and the through hole 158 of the electronic card.
  • the power cable 156 passes through the peripheral seal 154 positioned over the entire periphery of the panel 134 or a cover 187 via a gland 160 before proceeding between the two plates 138, 138 '. In the presence of a cavity 180, it is not necessary to provide a gland at the peripheral seal 188 of the cavity.
  • a panel may comprise a cavity 180 connected to a plurality of electronic cards.
  • a groove filled with a filling material may be provided to route the power cable 156 of the song panel peripheral 134 to cavity 180.
  • second conduit 192 may be at least partially replaced by a groove filled with filler material.
  • the cable or cables may be positioned in one or more sheaths 194.
  • the sheath may be embedded partially or entirely in the filling material.
  • a cable that passes into the sheath 194 can be removed or changed.
  • the lighting device comprises a ribbon of material 196 interposed between the peripheral edge of each cap 150 and the plate 138 to the right of the fixing elements 198 provided for fixing said cap to the panel 134.
  • This ribbon of material 196 allows to increase the thickness of the plate 138 to ensure a satisfactory grip of the fastening elements 198.
  • This ribbon of material 196 is integral with the plate 138 of the panel 134.
  • the material ribbon 196 is made of resin and is obtained by overmolding which makes it possible to obtain a catch between the material ribbon 196 and the plate 138.
  • the peripheral edge of a cover 150 or cover 187 comprises a contact face 200 facing the plate 138.
  • This contact surface 200 comprises a groove 202 for housing a seal 152 or 190 and a recess 204 configured to house the material ribbon 196.
  • the material ribbon 196, the filling material, the peripheral seals 154 and 188 are made from the same resin and are obtained during the same overmolding operation.
  • this fastener 206 for connecting the panel 134 to a support 214.
  • this fastener 206 comprises at least one hinge for orienting the panel 134.
  • the fastener 206 comprises two U-shaped flats 208 and at least one cylinder 210 positioned between the flats of the flats at the base of the U-shape.
  • a first branch 212 is plated. and fixed against the outer face 138E of the plate 138 secured to the panel and a second branch 212 'is plated and fixed against the outer face 138'E of the plate 138'.
  • Fasteners 216 make it possible to secure the branches 212 and 212 'to the panel 134.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Claims (10)

  1. Beleuchtungsvorrichtung mit einer Halterung (16), mit wenigstens einer Elektronikkarte (148), auf der elektrolumineszierende Dioden angebracht sind und die an der Halterung (16) angebracht ist, und mit einer Haube (20, 42, 150), die die Elektronikkarte (148) abdeckt, wobei die Halterung (16) ein metallisches Panel (134) ist, das zwei flache Platten (138, 138') und eine Kammerstruktur (136) aufweist, die zwischen die beiden flachen Platten (138, 138') eingebracht ist, wobei die Kammerstruktur (136) eine Vielzahl von Kanälen aufweist, die jeweils durch wenigstens eine senkrecht zu den Platten (138, 138') ausgerichtete Wand (140) begrenzt sind, und wobei die Elektronikkarte (148) an einer ersten Seite (138E) von einer der beiden Platten (138) angebracht ist, wobei eine zweite Seite (1381) dieser Platte (138), die der ersten Seite (138E) entgegengesetzt ist, in Kontakt mit der Kammerstruktur (136) ist, dadurch gekennzeichnet, dass ein Versorgungskabel (156) mit der Elektronikkarte (148) verbunden ist, wobei ein Teil des elektrischen Kabels (156) zwischen den beiden Platten (138, 138') angeordnet ist und dass das Panel eine umlaufende Dichtung (154) umfass, die die gesamte umlaufende Schmalseite des Panels abdeckt.
  2. Beleuchtungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Panel (134) eine Kabeldurchführung (160) aufweist, die im Bereich der umlaufenden Dichtung (154) angeordnet ist, die das Versorgungskabel (156) umgibt und die dazu eingerichtet ist, das Versorgungskabel (156) die umlaufende Dichtung (154) auf dichte Weise durchqueren zu lassen.
  3. Beleuchtungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Panel (134) wenigstens einen Schlitz (162, 168) zur Aufnahme des Versorgungskabels (156) aufweist, der mit einem Füllmaterial (164, 178) gefüllt ist.
  4. Beleuchtungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sich der Schlitz (168) bis zu einem Abschluss (170) erstreckt, der bezüglich einem äußeren Rand der Haube (150, 187) versetzt ist.
  5. Beleuchtungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Panel (134) einen Hohlraum (180) aufweist, der sich im Bereich einer Platte (138) öffnet, wobei der Hohlraum auf dichte Weise durch eine Haube (187) verschlossen ist.
  6. Beleuchtungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Hohlraum (180) eine umlaufende Dichtung (188) aufweist, die den gesamten äußeren Rand des Hohlraums (180) abdeckt.
  7. Beleuchtungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Panel (134) ein Materialband (196) aufweist, das zwischen dem äußeren Rand von jeder Haube (150, 187) und dem Panel (138) direkt unter Befestigungselementen (198) eingebracht ist, die zum Befestigen der Haube am Panel (134) vorgesehen sind.
  8. Beleuchtungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kanäle der Kammerstruktur (136) jeweils einen Flächeninhalt in der Größenordnung von 1 cm2 aufweisen.
  9. Beleuchtungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass diese eine Steuervorrichtung (142), die die Regelung des Versorgungsstroms der Dioden (144) gewährleistet, und einen Temperatursensor (146) aufweist, der in der Nähe der elektrolumineszierenden Dioden (144) aufgebracht ist und der mit der Steuervorrichtung (142) verbunden ist, die dazu eingerichtet ist, den Versorgungsstrom der elektrolumineszierenden Dioden (144) derart zu regeln, dass die vom Temperatursensor (146) gemessene Temperatur unterhalb einer Temperaturschwelle bleibt.
  10. Beleuchtungsvorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass der Temperatursensor (146) auf der Elektronikkarte (148) befestigt ist, die die elektrolumineszierenden Dioden (144) hält.
EP15183258.1A 2014-09-01 2015-09-01 Beleuchtungsvorrichtung, die eine verbesserte halterung umfasst Active EP2990723B1 (de)

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FR1458160A FR3025292B1 (fr) 2014-09-01 2014-09-01 Dispositif d'eclairage integrant un support ameliore
FR1458159A FR3025294B1 (fr) 2014-09-01 2014-09-01 Dispositif d'eclairage integrant une etancheite amelioree

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US20070247851A1 (en) * 2006-04-21 2007-10-25 Villard Russel G Light Emitting Diode Lighting Package With Improved Heat Sink
US7766511B2 (en) * 2006-04-24 2010-08-03 Integrated Illumination Systems LED light fixture
DE202008001506U1 (de) * 2008-01-31 2008-03-27 Domag Led Technology Co., Ltd., Zhonghe City Kühlvorrichtung für LED-Lampe
FR2944853B1 (fr) 2009-04-27 2012-10-12 Hmi Innovation Dispositif d'eclairage a del incorporant un support favorisant la dissipation thermique.
CN201429055Y (zh) * 2009-07-14 2010-03-24 柯建锋 Led灯具用的散热装置
GB2497282A (en) * 2011-12-02 2013-06-12 Marshalls Mono Ltd External lanterns and method of manufacture

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