FR2998032A1 - Lantern for use at top of mast of street lamp for public lighting, has LED fixed to printed circuit board and provided in front of fins, fins provided integral with open shell, and printed circuit board fixed at free ends of fins - Google Patents

Lantern for use at top of mast of street lamp for public lighting, has LED fixed to printed circuit board and provided in front of fins, fins provided integral with open shell, and printed circuit board fixed at free ends of fins Download PDF

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Publication number
FR2998032A1
FR2998032A1 FR1260642A FR1260642A FR2998032A1 FR 2998032 A1 FR2998032 A1 FR 2998032A1 FR 1260642 A FR1260642 A FR 1260642A FR 1260642 A FR1260642 A FR 1260642A FR 2998032 A1 FR2998032 A1 FR 2998032A1
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France
Prior art keywords
fins
lantern
printed circuit
fixed
circuit board
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Application number
FR1260642A
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French (fr)
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FR2998032B1 (en
Inventor
Jean-Pierre Belliard
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NOVEA EN
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NOVEA EN
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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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/0055—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by screwing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • 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
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • 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
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads

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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)

Abstract

The lantern (100) has a LED (206) fixed to a printed circuit board (204). Fins (104) are provided integral with a downwardly open shell (102). The board is fixed at free ends (108) of the fins. The LED is provided in front of the fins. The shell includes a smooth and convex upper surface (202) on a side opposite to the fins. The shell defines an interior volume (150). The upper surface is directed upward when the lantern is under operation. The shell is made of aluminum. Each fin extends in the interior volume between a foot (106) interdependent of the shell and one of the free ends.

Description

La présente invention concerne une lanterne ainsi qu'un lampadaire muni d'une telle lanterne. Actuellement, la lampe qui équipe une lanterne pour l'éclairage public est remplacée par des diodes électroluminescentes (DEL) de forte puissance qui sont fixées sur un circuit imprimé (PCB). Le PCB est lui-même fixé sur la lanterne qui est fixée en haut d'un mât constituant ainsi un lampadaire. Les DEL produisent une grande quantité de chaleur qui doit être évacuée vers l'extérieur. Actuellement, une lanterne comporte une coque ouverte vers le bas à l'intérieur de laquelle sont fixées les DEL. Au-dessus de la coque et à l'extérieur de celle-ci sont réalisées des ailettes qui sont orientées vers l'extérieur et constituent des radiateurs qui sont au contact de l'air extérieur et permettent ainsi l'évacuation de la chaleur. Les ailettes sont ainsi au contact de l'air libre et les espaces entre deux ailettes sont régulièrement salis par exemple par les déjections des oiseaux, des dépôts dus à la pollution, aux feuilles, ... A cause de ces salissures, l'évacuation de la chaleur par les ailettes se dégrade. Un objet de la présente invention est de proposer une lanterne qui ne présente pas les inconvénients de l'art antérieur et qui en particulier garantit toujours une bonne évacuation de la chaleur.The present invention relates to a lantern and a lamp post with such a lantern. Currently, the lamp that equips a lantern for street lighting is replaced by high power LEDs that are attached to a printed circuit board (PCB). The PCB is itself fixed on the lantern which is fixed at the top of a mast thus constituting a lamppost. LEDs produce a large amount of heat that must be exhausted to the outside. Currently, a lantern has a shell open to the bottom inside which are fixed the LEDs. Above the hull and outside thereof are formed fins which are oriented outwardly and are radiators which are in contact with the outside air and thus allow the evacuation of heat. The fins are thus in contact with the open air and the spaces between two fins are regularly soiled for example by bird droppings, deposits due to pollution, leaves, ... Due to this soiling, the evacuation heat from the fins is degraded. An object of the present invention is to provide a lantern which does not have the disadvantages of the prior art and which in particular always ensures good heat dissipation.

A cet effet, est proposée une lanterne comportant: - une coque, - un circuit imprimé, - au moins une diode électroluminescente fixée sur le circuit imprimé, ladite lanterne étant caractérisée en ce qu'elle comporte en outre une pluralité d'ailettes monoblocs avec la coque et à l'extrémité libre desquelles le circuit imprimé est fixé. Avantageusement, chaque diode électroluminescente est en vis-à-vis d'une ailette. Avantageusement, la coque présente du côté opposé aux ailettes une surface supérieure lisse et bombée. L'invention propose également un lampadaire comportant un mât et au moins une lanterne selon l'une des variantes précédentes fixée au sommet dudit mât. Les caractéristiques de l'invention mentionnées ci-dessus, ainsi que d'autres, apparaîtront plus clairement à la lecture de la description suivante d'un exemple de réalisation, ladite description étant faite en relation avec les dessins joints, parmi lesquels : la Fig. 1 représente une lanterne selon l'invention en vue de dessous, et la Fig. 2 est une coupe de la lanterne de la Fig. 1 par un plan vertical médian.For this purpose, there is provided a lantern comprising: - a shell, - a printed circuit, - at least one light-emitting diode fixed on the printed circuit, said lantern being characterized in that it further comprises a plurality of monoblock fins with the shell and at the free end of which the printed circuit is fixed. Advantageously, each light emitting diode is vis-à-vis a fin. Advantageously, the shell has on the opposite side to the fins a smooth upper surface and curved. The invention also proposes a lamp post comprising a mast and at least one lantern according to one of the preceding variants fixed to the top of said mast. The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being made in connection with the attached drawings, among which: FIG. . 1 represents a lantern according to the invention in view from below, and FIG. 2 is a section of the lantern of FIG. 1 by a median vertical plane.

La Fig. 1 montre une lanterne 100 en vue de dessous et la Fig. 2 montre la lanterne 100 en coupe et en position de fonctionnement. Un lampadaire selon l'invention comporte un mât et au moins une lanterne 100 fixée au sommet dudit mât. A cette fin, la lanterne 100 présente des moyens de fixation 50 qui sont destinés à fixer la lanterne 100 sur le mât.Fig. 1 shows a lantern 100 in bottom view and FIG. 2 shows the lantern 100 in section and in operating position. A lamp according to the invention comprises a mast and at least one lantern 100 fixed to the top of said mast. For this purpose, the lantern 100 has fastening means 50 which are intended to fix the lantern 100 on the mast.

La lanterne 100 comporte une coque 102 ouverte vers le bas afin d'éclairer le sol lorsque la lanterne 100 est en fonctionnement et qui, dans le mode de réalisation de l'invention présenté sur les Figs. 1 et 2, présente ici une forme bombée. La coque 102 est de préférence réalisée en aluminium. La coque 102 définit un volume intérieur 150 et présente une surface supérieure 202, qui est orientée vers le haut lorsque la lanterne 100 est en fonctionnement. Dans le volume intérieur 150 sont réalisées de manière monobloc avec la coque 102, une pluralité d'ailettes 104. Chaque ailette 104 s'étend dans le volume intérieur 150 entre un pied 106 solidaire de la coque 102 et une extrémité libre 108 qui est orientée vers l'ouverture de la coque 102.The lantern 100 has a shell 102 open downward to illuminate the ground when the lantern 100 is in operation and which, in the embodiment of the invention shown in Figs. 1 and 2, here has a curved shape. The shell 102 is preferably made of aluminum. The shell 102 defines an interior volume 150 and has an upper surface 202, which is upwardly oriented when the lantern 100 is in operation. In the internal volume 150 are made integrally with the shell 102, a plurality of fins 104. Each fin 104 extends in the interior volume 150 between a foot 106 integral with the shell 102 and a free end 108 which is oriented towards the opening of the hull 102.

La lanterne 100 présente également un circuit imprimé (PCB) 204 sur lequel est fixée au moins une diode électroluminescente (DEL) 206. Le PCB 204 est fixé sur les extrémités libres 108 par exemple à l'aide de vis de fixation qui se vissent dans des trous 110 prévus à cet effet dans les ailettes 104. Les DEL 206 sont disposées sur le côté du PCB 204 qui est orienté vers l'extérieur de la lanterne 100, c'est à dire du côté opposé aux ailettes 104. Cette configuration permet une évacuation de la chaleur des DEL 206 d'abord à travers les ailettes 104, puis à travers la surface supérieure 202 qui est en contact avec l'extérieur. En outre, comme les ailettes 104 sont sous la surface supérieure 202, elles sont protégées des salissures et leur rendement ne se dégrade pas au cours du temps. La fixation du PCB 204 à l'aide d'une pluralité de vis permet d'assurer un bon contact entre lui et plusieurs ailettes 104 et donc une bonne évacuation de la chaleur.The lantern 100 also has a printed circuit (PCB) 204 on which is fixed at least one light-emitting diode (LED) 206. The PCB 204 is fixed on the free ends 108 for example by means of fixing screws which are screwed in. holes 110 provided for this purpose in the fins 104. The LEDs 206 are disposed on the side of the PCB 204 which is oriented towards the outside of the lantern 100, that is to say the opposite side to the fins 104. This configuration allows heat dissipation of the LEDs 206 first through the fins 104 and then through the upper surface 202 which is in contact with the outside. In addition, since the fins 104 are under the upper surface 202, they are protected from soiling and their performance does not degrade over time. Fixing the PCB 204 with a plurality of screws ensures a good contact between it and several fins 104 and thus a good heat dissipation.

Pour assurer un chemin de transfert thermique minimal entre les LED 206 et les ailettes 104, chaque LED 206 est en vis-à-vis d'une ailette 104, ce qui assure une meilleure évacuation de la chaleur produite par la LED 206 en fonctionnement. La surface supérieure 202 est lisse et bombée pour présenter une surface ne permettant pas d'accrocher les salissures qui pourraient tomber dessus. Bien sûr, pour assurer une protection des différents éléments, une vitre peut être fixée sous la coque 102 de manière à enfermer les ailettes 104, le PCB 204 et les LED 206 dans le volume intérieur 150. Bien entendu, la présente invention n'est pas limitée aux exemples et modes de réalisation décrits et représentés, mais elle est susceptible de nombreuses variantes accessibles à l'homme de l'art.To ensure a minimum heat transfer path between the LEDs 206 and the fins 104, each LED 206 is vis-à-vis a fin 104, which ensures better evacuation of the heat produced by the LED 206 in operation. The upper surface 202 is smooth and curved to have a surface that does not allow to catch the dirt that may fall on it. Of course, to ensure protection of the various elements, a window can be fixed under the shell 102 so as to enclose the fins 104, the PCB 204 and the LED 206 in the interior volume 150. Of course, the present invention is not not limited to the examples and embodiments described and shown, but it is capable of many variants accessible to those skilled in the art.

Claims (4)

REVENDICATIONS1) Lanterne (100) comportant: - une coque (102), - un circuit imprimé (204), - au moins une diode électroluminescente (206) fixée sur le circuit imprimé (204), ladite lanterne (100) étant caractérisée en ce qu'elle comporte en outre une pluralité d'ailettes (104) monoblocs avec la coque (102) et à l'extrémité libre desquelles ledit circuit imprimé (204) est fixé.CLAIMS1) Lantern (100) comprising: - a shell (102), - a printed circuit (204), - at least one light-emitting diode (206) fixed on the printed circuit (204), said lantern (100) being characterized in that it further comprises a plurality of fins (104) integral with the shell (102) and at the free end of which said printed circuit (204) is fixed. 2) Lanterne (100) selon la revendication 1, caractérisée en ce que chaque diode électroluminescente (206) est en vis-à-vis d'une ailette (104).2) Lantern (100) according to claim 1, characterized in that each light emitting diode (206) is vis-à-vis a fin (104). 3) Lanterne (100) selon l'une des revendications 1 ou 2, caractérisée en ce que la coque (102) présente du côté opposé aux ailettes (104) une surface supérieure (202) lisse et bombée.3) Lantern (100) according to one of claims 1 or 2, characterized in that the shell (102) has the side opposite to the fins (104) a top surface (202) smooth and curved. 4) Lampadaire comportant un mât et au moins une lanterne selon l'une des revendications 1 à 3 fixée au sommet dudit mât.4) floor lamp comprising a mast and at least one lantern according to one of claims 1 to 3 fixed to the top of said mast.
FR1260642A 2012-11-09 2012-11-09 LANTERN Active FR2998032B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1260642A FR2998032B1 (en) 2012-11-09 2012-11-09 LANTERN

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Application Number Priority Date Filing Date Title
FR1260642A FR2998032B1 (en) 2012-11-09 2012-11-09 LANTERN
FR1260642 2012-11-09

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FR2998032A1 true FR2998032A1 (en) 2014-05-16
FR2998032B1 FR2998032B1 (en) 2018-08-31

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016126350A1 (en) * 2015-02-04 2016-08-11 GE Lighting Solutions, LLC Led luminaire with internal heatsink

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201100555Y (en) * 2007-08-02 2008-08-13 珠海科利尔能源科技有限公司 High-power wide-angle LED road lamp
CN201100619Y (en) * 2007-08-02 2008-08-13 珠海科利尔能源科技有限公司 LED road lamp
EP2025998A1 (en) * 2007-08-13 2009-02-18 Young Seb Lee Cooling structure for street lamp using light emitting diode
KR100933022B1 (en) * 2009-05-15 2009-12-23 주식회사 선에너지엘이디 The led street lamp to improve brightness
WO2010123688A2 (en) * 2009-04-22 2010-10-28 3M Innovative Properties Company Lighting assemblies and systems
US20110002119A1 (en) * 2009-07-01 2011-01-06 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led lamp with large light emitting angle
CN102072432B (en) * 2009-11-24 2012-07-18 贵州世纪天元矿业有限公司 Light-emitting diode (LED) street lamp structure, LED lamp cap cooling method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201100555Y (en) * 2007-08-02 2008-08-13 珠海科利尔能源科技有限公司 High-power wide-angle LED road lamp
CN201100619Y (en) * 2007-08-02 2008-08-13 珠海科利尔能源科技有限公司 LED road lamp
EP2025998A1 (en) * 2007-08-13 2009-02-18 Young Seb Lee Cooling structure for street lamp using light emitting diode
WO2010123688A2 (en) * 2009-04-22 2010-10-28 3M Innovative Properties Company Lighting assemblies and systems
KR100933022B1 (en) * 2009-05-15 2009-12-23 주식회사 선에너지엘이디 The led street lamp to improve brightness
US20110002119A1 (en) * 2009-07-01 2011-01-06 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led lamp with large light emitting angle
CN102072432B (en) * 2009-11-24 2012-07-18 贵州世纪天元矿业有限公司 Light-emitting diode (LED) street lamp structure, LED lamp cap cooling method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016126350A1 (en) * 2015-02-04 2016-08-11 GE Lighting Solutions, LLC Led luminaire with internal heatsink
US10101017B2 (en) 2015-02-04 2018-10-16 GE Lighting Solutions, LLC LED luminaire with internal heatsink

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