• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    Thermal dissipation device (1) for a lighting system, comprising: a profile (3) having a bearing surface (11) extending in a direction of extension (9) of the profile (3) and a heat dissipation surface (15) that is located in the direction of extension (9) in the transverse direction opposite the bearing surface (11), the bearing surface (11) being configured to cooperate with a lighting system; a plurality of fins (5) attached to the heat dissipation surface (15), each fin (5) of the plurality of fins (5) extending in the transverse direction of the direction of extension (9).
    公开号:NL2024946A
    申请号:NL2024946
    申请日:2020-02-19
    公开日:2020-08-27
    发明作者:Golaz Louis；El Qomri Yassine
    申请人:Rouge Eng Designs；
    IPC主号:
    专利说明:

    DESCRIPTION Title: Thermal dissipation device for a lighting system Field of the invention The present invention relates to a thermal dissipation device for a lighting system and a method for manufacturing the thermal dissipation device.
    Background Art In the field of profile lamps, i.e. having a great length in a direction of extension relative to their width, it is known that a metal profile is used to which lighting systems are mounted.
    The metal used must be a good heat conductor in order to be able to dissipate the heat generated by means of the lighting systems to the surrounding air.
    Inverted U shaped profiles are known to be used which are intended to be attached to the ceiling or to a support, the lighting systems being mounted in the cavity of the inverted U to allow illumination of the room. to make.
    These profile lamps are mainly used in greenhouses to provide suitable lighting.
    The profiles may also include ribs extending in the direction of extension to maximize the contact area between the metal and the surrounding air to maximize heat dissipation, the ribs being realized during the extrusion of the profiles.
    This arrangement is useful but may be insufficient for proper heat dissipation.
    In particular, when the air circulation direction changes according to the profile lamp in the room, the dissipation of heat can be better or worse, which imposes installation restrictions for the profile lamps.
    The present invention aims to overcome all or some of the above-mentioned disadvantages,
    Description of the Invention For this purpose, the present invention relates to a thermal dissipation device for a lighting system having a profile comprising a bearing surface extending in a direction of extension of the profile and a heat dissipation surface facing the direction of extension in the transverse direction. support surface is disposed, the support surface configured to cooperate with a lighting system; and a plurality of fins attached to the heat sink surface, each fin of the plurality of fins extending in the transverse direction of the direction of extension.
    The fins are attached to the heat dissipation surface, which allows the absorption of the heat given off by the lighting system, which is transferred through the profile by conduction.
    The fins then release the heat to the air from the outside environment by means of convection. This discharge is all the more effective if the fins are arranged in the transverse direction with respect to the direction of extension, because an air flow which is oblique or transverse to the direction of extension allows good light circulation along the fins. direction or in the other, the heat dissipation is effective in the two directions.
    In the present text, "in the transverse direction" is understood to be perpendicular or substantially perpendicular to each other.
    In accordance with one aspect of the invention, each fin has a thickness in the direction of extension that is small with respect to a height of the fin defined from the heat dissipation surface in a direction opposite to the bearing surface and also with respect to a width defined as the dimension of the fin along the heat dissipation surface.
    In one aspect of the invention, the fins of the plurality of fins have identical dimensions, i.e., the same thickness, the same height and the same length.
    According to one aspect of the invention, the profile is a portion with a constant profile in the direction of extension. Preferably, the profile has a long extension length, i.e. at least one order of magnitude higher, relative to a dimension of the profile.
    In one aspect of the invention, the profile and the plurality of fins form a single piece, preferably of a single material. In particular, the material is a metal configured to transfer heat through conduction. In one aspect of the invention, the material comprises aluminum or copper. Preferably the material comprises an alloy of aluminum or copper that is optimized for heat dissipation.
    According to an aspect of the invention, the thermal dissipation device is intended to be used as a frame of a profile lamp, in particular for illuminating plants in a greenhouse.
    In accordance with one aspect of the invention, at least a portion of the fins of the plurality of fins are aligned in the direction of extension.
    This arrangement improves the air circulation that is in the transverse direction of extension, because a transverse or oblique air flow with respect to the direction of extension is separated into multiple flows in the transverse direction of the direction of extension and flows along the fins.
    In one aspect of the invention, the at least one portion of the aligned fins are distributed in a regular manner along the profile. Preferably, the distance separating two consecutive fins is constant. This arrangement also improves heat dissipation.
    In one aspect of the invention, the plurality of fins includes a first range of fins and a second range of fins, the first range and the second range extending in parallel in the direction of extension.
    This arrangement allows air flow between the two ranges of fins in the direction of extension. In this way the placement of the fins is such that the dissipation of heat is good for an air flow in the direction of extension or in a direction that is transverse or oblique due to the direction of the fins.
    The thermal dissipation device can therefore adapt to any type of environment by means of its geometry because the air can circulate in all directions without interfering with the dissipation of the heat generated by the lighting system.
    In one aspect of the invention, each fin of the first range is aligned transversely with respect to the direction of extension with a corresponding fin of the second range.
    Alignment of the first region with respect to the second region allows good air circulation in the transverse direction to the direction of extension because the circulation spaces created between two adjacent fins of the two regions are aligned.
    According to one aspect of the invention, the fins extend in the transverse direction with respect to the direction of extension such that a contact length of contact between the aligned fins of the two regions with the profile corresponds substantially to a width of the bearing surface that is in the transverse direction with respect to the profile. of the direction of extension is defined.
    In other words, the sum of the thicknesses of the fins of the two ranges corresponds to the width of the bearing surface.
    In one aspect of the invention, the plurality of fins comprises more than two ranges, each range being disposed relative to the adjacent range as described in the case of two ranges.
    In one aspect of the invention, each fin is disposed a longitudinal distance from the corresponding abutting fin of the same range in the direction of extension and a transverse distance from the corresponding abutting fin of the other range, the longitudinal distance and the transverse distance of the same order of magnitude.
    The fact that the transverse distance and the longitudinal distance are of the same order of magnitude allows a good distribution of the air flow. Thus, an air flow in the direction of extension, obliquely or in the transverse direction, will distribute between the two ranges and / or the fins depending on the case about a corresponding air circulation, i.e. in the direction of extension, diagonally or in the transverse direction, between the plurality of to allow fins.
    According to one aspect of the invention, the profile comprises a plurality of blind holes disposed in the bearing surface and in the direction of the heat dissipation surface, each blind hole of the plurality of blind holes being arranged to cooperate with a corresponding self-tapping screw.
    A blind hole is understood to be a non-through hole, that is to say a hole made in the thickness of the profile starting from the bearing surface and running in the direction of the heat dissipation surface but with a depth that is less than the thickness.
    The presence of blind holes allows easy attachment of the lighting system closer to the bearing surface, such that the heat generated by the lighting system can be easily transferred to the profile.
    In one aspect of the invention, each blind hole of the plurality of blind holes has a circular cross-section and preferably each blind hole has no threads.
    According to one aspect of the invention, the profile comprises a central portion defined between the bearing surface and the heat dissipation surface and two lateral portions extending beyond the bearing surface in a direction opposite to the heat dissipation surface, each lateral portion having a corresponding shoulder. wherein the shoulders are arranged to cooperate with an optical plate disposed opposite the support surface.
    This arrangement allows the profile to absorb the heat from the optical plate as it is in direct contact with the shoulder. The absorbed heat is then released in the same way as the heat that comes from the lighting system, i.e. by conduction through the profile and then convection with the circulation of ambient air.
    In one aspect of the invention, each shoulder includes a blocking surface that is substantially parallel to the bearing surface and a positioning surface that is substantially transverse to the blocking surface. Preferably, the blocking surface and the positioning surface extend in the direction of extension.
    In particular, the blocking surface and the positioning surface are perpendicular to each other and form a right angle.
    In one aspect of the invention, each lateral portion includes an external surface that extends in the direction of extension and faces the outside of the thermal dissipation device.
    Thus, the lateral parts allow some of the heat to be dissipated by convection with the ambient air through contact with the external surfaces.
    Preferably, each external surface is smooth and designed to remain free, i.e. without having attached a support for mounting the thermal dissipation device. This arrangement allows good heat dissipation without transfer to any support.
    According to one aspect of the invention, the thermal dissipation device has a central plane of symmetry extending in the direction of extension, such that the two regions are symmetrical with respect to this plane as well as the two lateral parts.
    In one aspect of the invention, each shoulder includes a corresponding snap-in system configured to cooperate with the optical disc.
    This arrangement allows for easy mounting of the optical plate as it is sufficient to snap it into the shoulders of the thermal dissipation device. Disassembly is also made easy.
    According to an aspect of the invention, each click system comprises a profile slot and a profile hook extending in the direction of extension. Preferably, the slot and the profile hook extend in directions that are reversed in the transverse direction from the direction of extension.
    According to an aspect of the invention, the profile slot has the shape of a circular arc profile, in particular with an angle greater than 180 °. Preferably, the profile slot is provided at the junction of the blocking surface and the positioning surface.
    According to an aspect of the invention, the profile hook has a surface that is disposed opposite the positioning surface.
    In this way, the optical plate has a shape that is complementary to the snap systems to cooperate with the shoulders.
    In one aspect of the invention, the profile has at least one groove extending in the direction of extension, each end of the at least one groove opening and configured to cooperate with a corresponding external fastening device.
    This arrangement makes it possible to easily provide attachment points to an external attachment device at each end of the profile because the opening grooves are defined by the shape of the profile.
    In one aspect of the invention, the or each groove extends in the direction of extension over the entire length of the profile. Preferably, the at least one groove has a partially circular cross-section, and in particular a circular arc cross-section that is greater than 180 ° and open outwards.
    This arrangement makes it possible to fix the external fastening device by means of a self-tapping screw. According to one aspect of the invention, each lateral portion has a groove. Preferably, a groove is provided in the heat dissipation surface, especially between the two regions.
    The present invention also relates to a lighting assembly comprising a thermal dissipation device as previously described and a lighting system, the lighting system comprising a lighting element, a substrate and a heat transfer material configured to cooperate in a mounted state with the support surface of the thermal dissipation device and the substrate.
    This arrangement makes it possible to ensure good heat transfer between the substrate and the support surface, the heat transfer material improving the transfer of heat by surface contact.
    According to one aspect of the invention, the substrate is substantially planar and has a contact surface having a width that substantially corresponds to the width of the support surface. Width is understood to be the dimension extending in the transverse direction with respect to the direction of extension.
    This arrangement makes it possible to maximize the contact area and thus improve heat transfer.
    In one aspect of the invention, the heat transfer material includes oil, thermal paste or a silicone disposed between the support surface and the substrate. Preferably, the heat transfer material is applied to the assembly of the contact surface and in particular in a homogeneous manner.
    In one aspect of the invention, the substrate is a substrate of a printed circuit board to which the lighting element is attached.
    This arrangement makes it possible to limit the number of components of the lighting system when the printed circuit board is also used as a contact element with the profile.
    In one aspect of the invention, the lighting assembly includes self-tapping screws configured to secure the substrate to the support surface by cooperation with openings made in the substrate and blind holes made in the profile.
    In one aspect of the invention, the lighting element comprises at least one electroluminescent diode.
    In one aspect of the invention, the illumination assembly includes the optical plate as previously described. Preferably, the optical plate is attached to the profile by means of click systems and / or by means of a glue strip extending along the direction of extension at the height of the shoulders.
    In this way, the optical plate can be glued, even in the case of using click systems. The conjugate action of the click systems and the glue makes it possible to carry out the mounting of the optical plate in a simple way because the cooperation of the optical plate with the click systems allows a retention of the optical plate in a position at the time of mounting. makes without having to apply support pressure.
    In the absence of a snap system, i.e. when each shoulder is simply composed of the blocking surface and the positioning surface, a glue strip is applied in the corner created by the corresponding shoulder. This makes it possible to carry out a simple installation, while a good water seal is obtained.
    In particular, the attachment of the optical plate to the shoulders is realized in such a way that the | P-65 standard is met in terms of waterproofing.
    In one aspect of the invention, the optical plate has a constant profile and is preferably obtained by extrusion.
    In one aspect of the invention, the lighting assembly includes an external mounting device as previously described. In particular, the external fixing device comprises a heat insulation board in contact with the corresponding end of the profile and a cover mounted on the heat insulation board. In particular, the cover includes means for attaching to an additional support, for example holes or mounting brackets.
    This arrangement makes it possible to fix the lighting assembly by means of its ends without the heat being dissipated by means of the external fixing device.
    The present invention further relates to a method for manufacturing a thermal dissipation device or a lighting assembly as previously described, comprising the steps of: extruding an intermediate profile portion from a metal base portion; chamfering the intermediate profile part in such a way that the plurality of fins and the profile of the heat sink is produced, the chamfering corresponding to a plurality of stripping of the intermediate profile part by means of a chamfering tool, each stripping producing at least one fin by means of of removing and smoothing a slat from the intermediate profile part.
    This arrangement allows a simple, fast and reliable construction of the thermal dissipation device because the plurality of fins are generated in a single step from the intermediate profile portion.
    It is not necessary to continue with a connection of the plurality of fins because they arise from the intermediate profile part. The intermediate profile part is therefore slightly thicker than the profile and the chamfering step also makes it possible to manufacture the heat dissipation surface.
    The chamfering step is also known under the English name "Skiving fin", in which the heat given off by means of the chamfering tool is cooled by means of a water jet.
    According to an aspect of the invention, the manufacturing method comprises a further step of drilling the intermediate profile part for manufacturing the blind holes. Preferably, the drilling step is performed prior to the chamfering step.
    According to one aspect of the invention, the method of manufacturing a lighting assembly comprises a mounting step in which the substrate is screwed to the profile by means of self-tapping screws forced into the corresponding blind holes, the heat transfer material preferably being previously disposed between the support surface and the substrate.
    According to one aspect of the invention, the manufacturing method further comprises a step of snapping the optical plate and / or gluing, which consists in applying at least one glue strip in the direction of extension at each shoulder, the gluing it also consists of placing the optical plate opposite the support surface such that the plate cooperates with the shoulders.
    According to one aspect of the invention, gluing consists in applying a glue strip for each shoulder in the corner created by means of the shoulder in the direction of extension.
    Gluing is only necessary when the shoulders do not include click systems and are simply blocking surfaces and positioning surfaces.
    These manufacturing steps are simple to perform and the resulting lighting assembly is sturdy and reliable, the adhesive strip making it possible to obtain a waterproof seal according to an IP-65 index.
    The various aspects defined above, which are not incompatible, can be combined.
    Brief description of the figures
    The invention will be better understood with the aid of the detailed description shown below with regard to the accompanying drawings, [Fig. 1] is a perspective view of a thermal dissipation device.
    [Fig. 2] is a sectional perspective view of the thermal dissipation device.
    [Fig. 3] is a perspective view of the thermal dissipation device from below.
    [Fig. 4] is an exploded view of a lighting assembly that includes the thermal dissipation device.
    [Fig. 5] is a perspective view of a variation of the embodiment of the thermal dissipation device from below.
    [Fig. 6] is a schematic diagram of a bevel step of a method for manufacturing the thermal dissipation device.
    [Fig. 7] is a diagram representing the steps of the manufacturing method.
    Description with reference to the figures In the detailed description that will follow the above-defined figures, the same elements or elements that perform identical functions may retain the same references in order to facilitate the understanding of the invention.
    As shown in Figure 1, a thermal dissipation device 1 comprises a profile 3 and a plurality of fins 5. The thermal dissipation device 1 is a single piece one piece of a single material, which is a metallic heat-conducting material such as copper or an aluminum alloy optimized for heat dissipation.
    The profile 3 has a constant profile 7 which extends in an extension direction 9. The profile 3 is long with respect to a size of the profile 7, that is to say longer by at least one order of magnitude.
    As can also be seen in Figures 2-4, the profile 3 has a support surface 11 configured to cooperate with an illumination system 13 and a heat dissipation surface 15 arranged opposite the support surface 11 in the transverse direction to the direction of extension 9.
    In this manner, the fins 5 of the plurality of fins 5 are attached to the surface of the heat sink surface 15.
    The fins 5 are arranged in two regions 17, 19. In other embodiments not proposed, it is also possible to provide more than two regions 17, 19.
    Each fin 5 of the plurality of fins 5 extends transversely with respect to the direction of extension 9. The fins 5 have identical dimensions, in particular a height 21 which extends from the heat dissipation surface 15 opposite the bearing surface 11.
    The fins 5 also have a width 23 which extends along the heat-dissipating surface 15 and a thickness 25 in the direction of extension 9 which is small with respect to the height 21 and the width 23. By small is meant at least an order of magnitude smaller.
    The fins 5 of the same region 17, 19 are aligned in the direction of extension 9 and distributed in a regular manner such that the distance separating two consecutive fins 5 of the same region 17, 19 is constant.
    The plurality of fins 5 comprises a first region 17 of fins 5 and a second region 19 of fins 5, the first region 17 and the second region 19 extending in parallel in the direction of extension 9.
    Each fin 5 of the first region 17 is aligned transversely to the direction of extension 9 with a corresponding fin 5 of the second region 19.
    The sum of the widths 23 of a fin 5 of the first region 17 and of an aligned fin 5 of the second region 19 substantially corresponds to a width 27 of the bearing surface 11 defined in the transverse direction with respect to the direction of extension 9.
    Each fin 5 is arranged at a longitudinal distance 29 from the corresponding adjacent fin 5 of the same region 17, 19 in the direction of extension 9 and at a transverse distance 31 from the corresponding abutting fin 5 of the other region 19, 17, the longitudinal distance 29 and transverse distance 31 are of the same order of magnitude, and typically are substantially identical within 25%.
    Profile 3 has a plurality of blind holes 33 arranged in the bearing surface 11 and towards the heat dissipation surface 15, each blind hole 33 of the plurality of blind holes 33 being arranged to cooperate with a corresponding self-tapping screw 35.
    Each blind hole 33 of the plurality of blind holes 33 has a circular cross section and is not threaded.
    As can be seen in particular in Figures 1 - 3, the profile 3 has a central part 37 which is located between the bearing surface 11 and the heat dissipation surface 15 and two lateral parts 39, which extend beyond the bearing surface 11 in a direction opposite with respect to the heat removal surface 15, is defined.
    Each lateral portion 39 has a corresponding shoulder 41, the shoulders 41 being arranged to cooperate with an optical plate 43 disposed opposite the bearing surface 11, as shown in Figure 4.
    Each shoulder 41 includes a blocking surface 45 that is substantially parallel to the bearing surface 11 and a positioning surface 47 that extends substantially in the transverse direction with respect to the blocking surface 11.
    The blocking surface 45 and the positioning surface 47 extend in the direction of extension 9. In this way, the blocking surface 45 and the positioning surface 47 are perpendicular to each other and form a right angle.
    Each shoulder 41 further comprises a click system 42 which is provided with a profile slot 44 and a profile hook 46.
    The profile slots 44 and the profile hooks 46 extend in the direction of extension 9. The profile slots 44 and the profile hooks 46 extend in directions which, viewed in the transverse direction, extend opposite to the direction of extension 9.
    The profile slots 44 have the shape of a circular arc profile, in particular with an angle that is greater than 180 °. The profile slots 44 are provided at the junction of the blocking surface 45 and the positioning surface 47.
    Each profile hook 46 also has a surface that is disposed opposite the corresponding positioning surface 47.
    Each lateral portion 39 has an external surface 49 which extends in the direction of extension 9 and faces the outside of the thermal dissipation device 1. Each external surface 49 is smooth and intended to be left free, that is to say without cooperation with a support intended for mounting the thermal dissipation device 1.
    The thermal dissipation device 1 has a central plane of symmetry 51 which extends in the direction of extension 9, such that the two regions 17, 19 are symmetrical with respect to this central plane of symmetry 51 as well as the two-lateral parts 39.
    The profile 3 has three grooves 53 extending in the direction of extension 9, each end of the grooves 53 adjoining and configured to cooperate with a corresponding external fastening device 55 as shown in Figure 4.
    The grooves 53 extend in the direction of extension 9 over the entire length of the profile 3. The grooves 53 have a partially circular cross-section, and in particular a cross-section of an arc of a circle that is greater than 180 ° and tapers outwards.
    Each lateral portion 39 has a groove 53 and a groove 53 is formed in the heat dissipation surface 15 between the two regions 17, 19.
    As shown in Figure 4, a lighting assembly 57 includes the thermal dissipation device 1 and the lighting system 13.
    The lighting system 13 includes a lighting element 59, a substrate 61 and a heat transfer material 63 configured to cooperate in an assembled state with the support surface 11 of the thermal dissipation device 1 and the substrate 61.
    The substrate 61 is substantially planar and has a contact surface 65 with a width 67 which substantially corresponds to the width 27 of the support surface 11. Width 67 is understood to be the dimension measured in the transverse direction relative to the direction of extension 9.
    The heat transfer material 63 includes oil, thermal paste or a silicone disposed between the support surface 11 and the substrate 61. Preferably, the heat transfer material 63 is applied to the assembly of the contact surface 65 and in particular in a homogeneous manner.
    The substrate 61 is a substrate of a printed circuit board to which the lighting element 59 is attached.
    The lighting assembly 57 comprises self-tapping screws 35 which are configured to secure the substrate 61 to the support surface 11 by cooperation with the openings 69 made in the substrate 61 and the blind holes 33 in the profile 3.
    The lighting element 59 includes at least one electroluminescent diode.
    The lighting assembly 57 also includes the optical plate 43. The optical plate 43 is attached to the profile 3 by means of snap-on systems 42, the optical plate 43 having a complementary shape.
    Alternatively, in the absence of snap systems 42, as shown in Figure 5, or in addition to snap systems 42, adhesive strips extending into the corners created by shoulders 41 may also be used. In the absence of snap systems 42, shoulders 41 may be composed of blocking surfaces 45 and positioning surfaces 47.
    Whichever alternative is chosen, the attachment of the optical plate 43 to the shoulders 41 is realized in such a way that the IP-65 standard is met in terms of waterproofing.
    The lighting assembly 57 includes the external mounting device 55.
    In particular, the external fixing device 55 includes a heat insulation plate 71 in contact with the corresponding end of the profile 3 and a cover 73 mounted on the heat insulation plate 71.
    The cover 73 includes means 75 for attachment to an additional support, for example holes or mounting brackets. An additional support can be a bracket for mounting on a ceiling.
    As shown in Figures 6 and 7, a method of manufacturing the lighting assembly 57 includes a step E1 of extruding an intermediate profile portion 77 from a metal base portion. This intermediate profile part 77 has a greater thickness than that of the profile 2.
    The manufacturing method includes a step E11 of drilling the intermediate profile portion 77 to form the blind holes 33.
    The manufacturing method further comprises a step E2 of chamfering the intermediate profile portion 77 to form the plurality of fins 5 and the profile 3 of the thermal dissipation device 1.
    The chamfering corresponds to a plurality of cuts from the intermediate profile portion 77 by means of a chamfer tool 79, each chamfer producing one fin 5 per area 17,19.
    The scraping thus corresponds to the removal and smoothing of two lamellae from the intermediate profile part 77.
    The chamfering step is also known under the English name "Skiving fin", in which the heat given off by means of the chamfering tool 79 is cooled by means of a water jet.
    The manufacturing method comprises a fastening step 3 in which the substrate 61 is screwed to the profile 3 by means of the self-tapping screws 35 which are forced into the corresponding blind holes 33, the heat transfer material 63 being preferably previously arranged between the support surface 11 and the substrate 61.
    The manufacturing method further includes a step E4 of snapping and / or gluing the optical plate 43.
    Gluing consists of applying a glue strip in the corner created by means of the shoulder 41 in the direction of extension 9 for each shoulder 41.
    Gluing also consists in placing the optical plate 43 opposite the bearing surface 11 such that the optical plate 43 cooperates with the shoulders 41.
    These manufacturing steps are easy to perform and the resulting lighting assembly 57 is sturdy and reliable, with the snap-in system 42 and / or the adhesive strip making it possible to obtain a waterproof seal in accordance with an IP-65 index.
    Thus, the lighting assembly 57 and in particular the thermal dissipation device 1 have a simple, fast and reliable construction. In particular, the plurality of fins 5 are manufactured from the intermediate profile part 77 in a single step.
    In addition, the provision of the fins 5, oriented transversely with respect to the direction of extension 9, allows a good dissipation of heat with respect to thermal dissipation devices comprising only one part realized by extrusion.
    The thermal dissipation device 1, as described above, in this way allows a good dissipation of heat whatever the orientation of the circulating air, i.e. in the direction of extension 9 or obliquely or in the transverse direction relative to the extension axis 9.
    It goes without saying that the invention is not limited to the only embodiment described below by way of example, but rather encompasses all embodiments.
    权利要求:
    Claims (12)
    [1]
    Thermal dissipation device (1) for a lighting system (13), comprising: - a profile (3) having a support surface (11) extending in a direction of extension {9} of the profile (3) and a heat dissipation surface {15) located in the direction of extension (9) in the transverse direction opposite the bearing surface {11}, the bearing surface (11) being configured to cooperate with a lighting system (13), - a plurality of fins (5 ) attached to the heat dissipation surface (15), each fin (5) of the plurality of fins (5) extending in the transverse direction relative to the direction of extension (9).
    [2]
    Thermal dissipation device {1} according to claim 1, wherein at least a portion of the fins {5} of the plurality of fins (5) are aligned in the direction of extension (9).
    [3]
    Thermal dissipation device (1) according to any one of claims 1 or 2, wherein the plurality of fins (5) comprises a first region (17) of fins {5} and a second region (19} of fins (5). wherein the first range {17} and the second range (19) extend in parallel in the direction of extension (9).
    [4]
    Thermal dissipation device {1} according to claim 3, wherein each fin {5} of the first region (17) viewed in the transverse direction with respect to the direction of extension (9) is aligned with a corresponding fin (5) of the second range (19).
    [5]
    Thermal dissipation device (1) according to claim 4, wherein each fin (5) is arranged at a longitudinal distance (29) from the corresponding abutting fin {5} of the same range (17, 19) in the direction of extension (9) and a transverse distance (31) from the corresponding adjacent fin (5) of the other range {19, 17}, wherein the longitudinal distance {29} and the transverse distance (31} are of the same order of magnitude.
    [6]
    Thermal dissipation device (1) according to any one of claims 1 to 5, wherein the profile (3} has a plurality of blind holes (33) arranged in the bearing surface {22) and in the direction of the heat dissipation surface (15). wherein each blind hole (33) of the plurality of blind holes (33) is arranged to cooperate with a corresponding self-tapping screw (35).
    [7]
    Thermal dissipation device (1) according to any one of claims 1 to 6, wherein the profile (3) comprises a central part (37) defined between the bearing surface (11) containing the heat dissipation surface {15} and two lateral parts. (39) extending beyond the bearing surface (11) in a direction opposite to the heat dissipation surface {15}, each lateral portion {39} having a corresponding shoulder (41), the shoulders (41) being arranged to cooperate with an optical plate (43) arranged opposite the support surface {11}.
    [8]
    A thermal dissipation device {1} according to claim 7, wherein each shoulder {41} comprises a corresponding snap-in system {42} configured to cooperate with the optical plate (43).
    [9]
    Thermal dissipation device (1) according to any one of claims 1-8, wherein the profile {3} has at least one groove (53) extending in the direction of extension (9), each end of the at least one groove (53) engages and is configured to cooperate with a corresponding external mounting device (55).
    [10]
    A lighting assembly (57) comprising a thermal dissipation device (1) according to any one of claims 1 to 9 and a lighting system (13), the lighting system (13) having a lighting element (59), a substrate (61) and a heat transfer material. {63} configured to cooperate in an assembled state with the support surface (11) of the thermal dissipation device {1} and comprising the substrate (61).
    [11]
    The lighting assembly (57) of claim 10, wherein the substrate {61} is a printed circuit board to which the lighting element (59) is attached.
    [12]
    A method of manufacturing a thermal dissipation device (1) according to any one of claims 1 to 9 or a lighting assembly (57) according to any one of claims 10 or 11, comprising the following steps:
    - (E1) extruding an intermediate profile part {77} from a metal base part, - (E2) chamfering the intermediate profile part (77) by way of manufacturing the plurality of fins (5) and the profile (3) of the thermal dissipation device (1), the chamfering corresponding to a plurality of cuts of the intermediate profile portion (77) by means of a chamfering tool (79), each stripping producing at least one fin (5) by means of removing and smoothing of a slat of the intermediate profile part (77).
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    CN210717454U|2020-06-09|Tunnel lamp radiator
    FI123058B|2012-10-15|Led lighting fixture
    EP2710295B1|2015-04-29|Lighting device
    CN108019663B|2020-11-24|Plate type LED lamp
    CN210093832U|2020-02-18|Heat radiator
    EP2836767B1|2020-04-01|Heat sink formed of stacked fin elements interleaved with soft deformable plates
    AU2013100168A4|2013-03-21|Led lamp device with fins having longitudinal and transversal channels
    KR200479469Y1|2016-01-29|Multi-type led lighting
    同族专利:
    公开号 | 公开日
    FR3092901A1|2020-08-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP4174146B2|1999-09-28|2008-10-29|昭和電工株式会社|Heat sink manufacturing method|
    JP4793838B2|2004-01-28|2011-10-12|中村製作所株式会社|Manufacturing method of radiator|
    CN100543975C|2005-04-21|2009-09-23|日本轻金属株式会社|Liquid-cooled jacket|
    CN101576242B|2009-04-27|2011-01-05|东莞市百分百科技有限公司|Radiating method of high-power LED radiator and radiator for implementing same|
    US8737073B2|2011-02-09|2014-05-27|Tsmc Solid State Lighting Ltd.|Systems and methods providing thermal spreading for an LED module|
    DE102011086968A1|2011-11-23|2013-05-23|BSH Bosch und Siemens Hausgeräte GmbH|Lighting module for a home appliance|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR1901693A|FR3092901A1|2019-02-20|2019-02-20|Heat sink for lighting system|
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