EP1055864A2 - Lighting unit for luminous column - Google Patents

Lighting unit for luminous column Download PDF

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Publication number
EP1055864A2
EP1055864A2 EP00401478A EP00401478A EP1055864A2 EP 1055864 A2 EP1055864 A2 EP 1055864A2 EP 00401478 A EP00401478 A EP 00401478A EP 00401478 A EP00401478 A EP 00401478A EP 1055864 A2 EP1055864 A2 EP 1055864A2
Authority
EP
European Patent Office
Prior art keywords
printed circuit
light
axis
element according
column
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.)
Withdrawn
Application number
EP00401478A
Other languages
German (de)
French (fr)
Other versions
EP1055864A3 (en
Inventor
Jacques Bernard
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP1055864A2 publication Critical patent/EP1055864A2/en
Publication of EP1055864A3 publication Critical patent/EP1055864A3/en
Withdrawn legal-status Critical Current

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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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • 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
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • 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
    • 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
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like
    • 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
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/04—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for waterways
    • 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/90—Light sources with three-dimensionally disposed light-generating elements on two opposite sides of supports or substrates
    • 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]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

Definitions

  • the present invention relates to a light column composed of light elements generally cylindrical, at least one of the elements housing several conductors substantially parallel to the cylinder axis and a support printed circuit light sources such as light emitting diodes.
  • incandescent lamps are usually used. It would be desirable to use to light emitting diodes.
  • the object of the invention is to use an arrangement which is well suited to light columns. with superimposed light elements, this arrangement being simple and having nevertheless good luminous efficacy.
  • the printed circuit is oriented with its main plane parallel to the axis of the cylinder and carries several light-emitting diodes on each face.
  • the luminous efficiency of the column is excellent, especially when the body of the light element has diffusing elements such as axial internal grooves whose shape and step or the mutual spacing are predetermined.
  • the printed circuit can be arranged diametrically in the element, with side plates or flanges comprising one of the individual interconnection conductors and the other a common conductor for the different elements.
  • the printed circuit can also be housed in a sealed bulb.
  • Figure 1 shows schematically in axial section a light element according to the invention.
  • Figure 2 illustrates the light element whose cover has been removed.
  • Figure 3 is an exploded perspective view of the clean electrical sub-assembly to the light element.
  • FIG. 4 shows in perspective an alternative embodiment of the invention.
  • the light element illustrated in the figures is a signal element specific to a light column.
  • a light column is composed of several elements - or verrines - superimposed to provide light emission of colors different and which must be visible from all sides in order to signal the state of a machine, execution process, etc.
  • the light element comprises a cylindrical body 10 of colored plastic material translucent.
  • the body 10 is of revolution around an axis X; it is smooth on the outside and it is grooved inside by a network of diffusing reliefs, more particularly of axial grooves 11 whose shape and pitch are predetermined so as to obtain optimal illumination over the entire periphery of the element.
  • the body 10 presents to its lower part and at its upper part means 12 for assembly to a base or to the body of a neighboring element and it is closed at its upper part by a cover 13 provided with openings 14 allowing the electrical interconnection with a element superimposed on it.
  • the light emission specific to the light element is ensured by several diodes electroluminescent 20 implanted laterally on the two faces 21a, 21b of a printed circuit 21.
  • the printed circuit 21 is arranged parallel to the axis of symmetry X of the light element, preferably being diametric, that is to say centered on this axis.
  • the diodes 20 are for example eight in number, located back to back and divided into two groups of four on each side. Each group is subdivided in subgroups 20-1,20-2 of two diodes 20 offset axially by a distance h.
  • the printed circuit 21 Lateral to the printed circuit 21 are provided two plates 23, 24, one of which insulates and encloses the individual supply conductors 25 in isolation various superimposed light elements and the other a conductor 26 common to various light elements.
  • the conductor 25 assigned to the light element and the conductor common 26 are connected laterally to the printed circuit to ensure the supply of diode groups 20. It should be observed that the printed circuit 21 and the plates 23, 24 are located in the same diametral plane P and are assembled to constitute a sub-assembly capable of being introduced as a whole in the body.
  • the plates are formed by assembling half-plates 23a, 23b and 24a, 24b ( Figure 3) in order to isolate the conductors and are joined together by a support structure 27 in the form of a disc or crown which fits into the body 10 of the element and contributes both to the mounting of the sub-assembly in the body and the rigidity of the element.
  • the printed circuit 21 with emissive diodes 20 can be arranged in a biface in a closed bulb 30 mounted by screw or bayonet and forming, with the supports 23.24 interconnection conductors, a sub-assembly housed in the body 10 of the element.
  • the bulb 30 is of generally cylindrical shape with an oriented axis along the axis X of the light element and parallel to the internal grooves 11 of the body 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The column part has a generally cylindrical shape which lodges several conductors parallel to the axis of the cylinder and a printed circuit support for electro-luminescent diodes. The printed circuit (21) has a principal plane and two faces, it is: - orientated with its principal plane (F) parallel to the axis (X) of the cylinder and carries several electro-luminescent diodes (20) on each face (21a,21b); - in each part of the column is lodged a plaque (23,24) of conductor (25,26) supports for interconnection between neighboring parts of the column. Each being co-planar with the printed circuit (21). The internal surface of the cylinder is fitted with ribs (11) to diffuse the emitted light.

Description

La présente invention concerne une colonne lumineuse composée d'éléments lumineux de forme générale cylindrique, l'un au moins des éléments logeant plusieurs conducteurs sensiblement parallèles à l'axe du cylindre et un circuit imprimé support de sources lumineuses du genre diodes électroluminescentes.The present invention relates to a light column composed of light elements generally cylindrical, at least one of the elements housing several conductors substantially parallel to the cylinder axis and a support printed circuit light sources such as light emitting diodes.

On connaít des dispositifs de signalisation lumineuse, voire des lampes, utilisant des diodes électroluminescentes réparties en plusieurs groupes disposés selon plusieurs plans qui sont décalés selon un axe général, les diodes émissives étant réparties régulièrement sur une circonférence dans chaque plan. Les diodes émissives sont implantées pour cela sur plusieurs circuits imprimés décalés selon l'axe du dispositif. De tels dispositifs sont utilisés dans un but de signalisation, par exemple routière ou maritime.There are known light signaling devices, or even lamps, using light-emitting diodes divided into several groups arranged according to several planes which are offset along a general axis, the emitting diodes being evenly distributed over a circumference in each plane. Emitting diodes are installed for this on several printed circuits offset along the axis of the device. Such devices are used for signaling purposes, for example road or sea.

Dans les colonnes lumineuses d'usage industriel à éléments lumineux superposés, on utilise habituellement des lampes à incandescence. Il serait souhaitable de recourir à des diodes électroluminescentes.In industrial use light columns with superimposed light elements, incandescent lamps are usually used. It would be desirable to use to light emitting diodes.

L'invention a pour but de recourir à une disposition bien adaptée aux colonnes lumineuses à éléments lumineux superposés, cette disposition étant simple et ayant néanmoins une bonne efficacité lumineuse.The object of the invention is to use an arrangement which is well suited to light columns. with superimposed light elements, this arrangement being simple and having nevertheless good luminous efficacy.

Selon l'invention, le circuit imprimé est orienté avec son plan principal parallèle à l'axe du cylindre et porte plusieurs diodes électroluminescentes sur chaque face.According to the invention, the printed circuit is oriented with its main plane parallel to the axis of the cylinder and carries several light-emitting diodes on each face.

Malgré la disposition biface des diodes émissives, l'efficacité lumineuse de la colonne est excellente, en particulier lorsque le corps de l'élément lumineux est doté d'éléments diffuseurs tels que des rainures intérieures axiales dont la forme et le pas ou l'écartement mutuel sont prédéterminés.Despite the two-sided arrangement of the emitting diodes, the luminous efficiency of the column is excellent, especially when the body of the light element has diffusing elements such as axial internal grooves whose shape and step or the mutual spacing are predetermined.

Le circuit imprimé peut être disposé diamétralement dans l'élément, avec latéralement des plaquettes ou flasques comportant l'une des conducteurs d'interconnexion individuels et l'autre un conducteur de commun pour les différents éléments. Le circuit imprimé peut aussi être logé dans une ampoule scellée
La description va être faite ci-après d'un mode de réalisation non limitatif de l'invention, en regard des dessins annexés. The printed circuit can be arranged diametrically in the element, with side plates or flanges comprising one of the individual interconnection conductors and the other a common conductor for the different elements. The printed circuit can also be housed in a sealed bulb
The description will be made below of a non-limiting embodiment of the invention, with reference to the accompanying drawings.

La figure 1 représente schématiquement en coupe axiale un élément lumineux conforme à l'invention.Figure 1 shows schematically in axial section a light element according to the invention.

La figure 2 illustre l'élément lumineux dont le couvercle a été ôté.Figure 2 illustrates the light element whose cover has been removed.

La figure 3 est une vue en perspective éclatée du sous-ensemble électrique propre à l'élément lumineux.Figure 3 is an exploded perspective view of the clean electrical sub-assembly to the light element.

La figure 4 représente en perspective une variante d'exécution de l'invention.Figure 4 shows in perspective an alternative embodiment of the invention.

L'élément lumineux illustré sur les figures est un élément de signalisation propre à une colonne lumineuse. Une telle colonne est composée de plusieurs éléments - ou verrines - superposés afin de procurer des émissions lumineuses de couleurs différentes et qui doivent être visibles de toutes parts afin de signaler l'état d'une machine, d'un processus d'exécution, etc..The light element illustrated in the figures is a signal element specific to a light column. Such a column is composed of several elements - or verrines - superimposed to provide light emission of colors different and which must be visible from all sides in order to signal the state of a machine, execution process, etc.

L'élément lumineux comprend un corps cylindrique 10 en matière plastique colorée translucide. Le corps 10 est de révolution autour d'un axe X ; il est lisse à l'extérieur et il est rainuré à l'intérieur par un réseau de reliefs diffuseurs, plus particulièrement de rainures axiales 11 dont la forme et le pas sont prédéterminés de façon à obtenir un éclairement optimal sur toute la périphérie de l'élément. Le corps 10 présente à sa partie inférieure et à sa partie supérieure des moyens 12 d'assemblage à une embase ou au corps d'un élément voisin et il est fermé à sa partie supérieure par un couvercle 13 doté d'ouvertures 14 permettant l'interconnexion électrique avec un élément qui lui est superposé.The light element comprises a cylindrical body 10 of colored plastic material translucent. The body 10 is of revolution around an axis X; it is smooth on the outside and it is grooved inside by a network of diffusing reliefs, more particularly of axial grooves 11 whose shape and pitch are predetermined so as to obtain optimal illumination over the entire periphery of the element. The body 10 presents to its lower part and at its upper part means 12 for assembly to a base or to the body of a neighboring element and it is closed at its upper part by a cover 13 provided with openings 14 allowing the electrical interconnection with a element superimposed on it.

L'émission lumineuse propre à l'élément lumineux est assurée par plusieurs diodes électroluminescentes 20 implantées latéralement sur les deux faces 21a,21b d'un circuit imprimé 21. Le circuit imprimé 21 est disposé parallèlement à l'axe de symétrie X de l'élément lumineux, en étant de préférence diamétral, c'est-à-dire centré sur cet axe. Les diodes 20 sont par exemple au nombre de huit, situées dos à dos et réparties en deux groupes de quatre sur chaque face. Chaque groupe se subdivise en sous-groupes 20-1,20-2 de deux diodes 20 décalés axialement d'une distance h.The light emission specific to the light element is ensured by several diodes electroluminescent 20 implanted laterally on the two faces 21a, 21b of a printed circuit 21. The printed circuit 21 is arranged parallel to the axis of symmetry X of the light element, preferably being diametric, that is to say centered on this axis. The diodes 20 are for example eight in number, located back to back and divided into two groups of four on each side. Each group is subdivided in subgroups 20-1,20-2 of two diodes 20 offset axially by a distance h.

Latéralement au circuit imprimé 21 sont prévues deux plaquettes 23,24 dont l'une porte et enferme de manière isolée les conducteurs 25 d'alimentation individualisée de divers éléments lumineux superposés et l'autre un conducteur 26 commun aux divers éléments lumineux. Le conducteur 25 affecté à l'élément lumineux et le conducteur commun 26 sont connectés latéralement au circuit imprimé pour assurer l'alimentation des groupes de diodes 20. Il convient d'observer que le circuit imprimé 21 et les plaquettes 23,24 sont situées dans un même plan diamétral P et sont assemblés pour constituer un sous-ensemble susceptible d'être introduit en bloc dans le corps. Les plaquettes sont formées par assemblage de demi-plaquettes 23a,23b et 24a,24b (figure 3) afin d'isoler les conducteurs et sont solidarisées par une structure de support 27 en forme de disque ou de couronne qui s'emboíte dans le corps 10 de l'élément et contribue à la fois au montage du sous-ensemble dans le corps et à la rigidité de l'élément.Lateral to the printed circuit 21 are provided two plates 23, 24, one of which insulates and encloses the individual supply conductors 25 in isolation various superimposed light elements and the other a conductor 26 common to various light elements. The conductor 25 assigned to the light element and the conductor common 26 are connected laterally to the printed circuit to ensure the supply of diode groups 20. It should be observed that the printed circuit 21 and the plates 23, 24 are located in the same diametral plane P and are assembled to constitute a sub-assembly capable of being introduced as a whole in the body. The plates are formed by assembling half-plates 23a, 23b and 24a, 24b (Figure 3) in order to isolate the conductors and are joined together by a support structure 27 in the form of a disc or crown which fits into the body 10 of the element and contributes both to the mounting of the sub-assembly in the body and the rigidity of the element.

En variante, on peut disposer le circuit imprimé 21 à diodes émissives 20 en biface dans une ampoule close 30 montée par vis ou baïonnette et formant, avec les supports 23,24 des conducteurs d'interconnexion, un sous-ensemble logé dans le corps 10 de l'élément. L'ampoule 30 est de forme générale cylindrique d'axe orienté selon l'axe X de l'élément lumineux et parallèlement aux rainures intérieures 11 du corps 10.As a variant, the printed circuit 21 with emissive diodes 20 can be arranged in a biface in a closed bulb 30 mounted by screw or bayonet and forming, with the supports 23.24 interconnection conductors, a sub-assembly housed in the body 10 of the element. The bulb 30 is of generally cylindrical shape with an oriented axis along the axis X of the light element and parallel to the internal grooves 11 of the body 10.

Claims (7)

Elément de colonne lumineuse de signalisation, l'élément ayant une forme générale cylindrique et logeant plusieurs conducteurs sensiblement parallèles à l'axe du cylindre et un circuit imprimé support de sources lumineuses du genre diodes électroluminescentes, le circuit imprimé présentant un plan principal et deux faces,
caractérisé par le fait que : le circuit imprimé (21) est orienté avec son plan principal (P) parallèle à l'axe (X) du cylindre et porte plusieurs diodes électroluminescentes (20) sur chaque face (21a,21b), dans l'élément de colonne lumineux est logée une plaquette (23,24) support de conducteurs (25,26) d'interconnexion entre éléments voisins de la colonne, la plaquette étant coplanaire au circuit imprimé (21). Signaling light column element, the element having a generally cylindrical shape and housing several conductors substantially parallel to the axis of the cylinder and a printed circuit supporting light sources of the light-emitting diode type, the printed circuit having a main plane and two faces ,
characterized by the fact that : the printed circuit (21) is oriented with its main plane (P) parallel to the axis (X) of the cylinder and carries several light-emitting diodes (20) on each face (21a, 21b), in the light column element is housed a plate (23,24) supporting conductors (25,26) for interconnection between neighboring elements of the column, the plate being coplanar with the printed circuit (21). Elément selon la revendication 1, caractérisé par une surface interne cylindrique dotée de reliefs (11) diffuseurs de lumière.Element according to claim 1, characterized by a cylindrical internal surface provided with light diffusers (11). Elément selon la revendication 2, caractérisé par le fait que les reliefs (11) diffuseurs de lumière sont des rainurages parallèles à l'axe (X) du cylindre.Element according to claim 2, characterized in that the reliefs (11) diffusers of light are grooves parallel to the axis (X) of the cylinder. Elément selon la revendication 1, caractérisé par le fait que la plaquette (23,24) et le circuit imprimé (21) sont situés dans un plan diamétral (P) de l'élément.Element according to claim 1, characterized in that the plate (23,24) and the printed circuit (21) are located in a diametrical plane (P) of the element. Elément selon la revendication 1, caractérisé par le fait que le circuit imprimé (21) est disposé diamétralement entre deux plaquettes (23,24) dont l'une porte des conducteurs d'alimentation individualisés (25) et l'autre un conducteur de commun (26).Element according to claim 1, characterized in that the printed circuit (21) is arranged diametrically between two plates (23,24) one of which carries conductors individual power supply (25) and the other a common conductor (26). Elément selon la revendication 1, caractérisé par le fait que la plaquette (23,24) et le circuit imprimé (21) sont solidarisés avec une structure (25) en forme de couronne ou de disque emboítée dans l'élément.Element according to claim 1, characterized in that the plate (23,24) and the printed circuit (21) are secured with a structure (25) in the form of a crown or disc fitted in the element. Elément selon la revendication 1, caractérisé par le fait que le circuit imprimé (21) est logé dans une ampoule (30).Element according to claim 1, characterized in that the printed circuit (21) is housed in a bulb (30).
EP00401478A 1999-05-28 2000-05-25 Lighting unit for luminous column Withdrawn EP1055864A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9906824A FR2794217B1 (en) 1999-05-28 1999-05-28 LIGHT COLUMN ELEMENT
FR9906824 1999-05-28

Publications (2)

Publication Number Publication Date
EP1055864A2 true EP1055864A2 (en) 2000-11-29
EP1055864A3 EP1055864A3 (en) 2000-12-13

Family

ID=9546167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00401478A Withdrawn EP1055864A3 (en) 1999-05-28 2000-05-25 Lighting unit for luminous column

Country Status (6)

Country Link
US (1) US6382811B1 (en)
EP (1) EP1055864A3 (en)
JP (1) JP2000353402A (en)
KR (1) KR20010014978A (en)
FR (1) FR2794217B1 (en)
TW (1) TW467249U (en)

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Also Published As

Publication number Publication date
US6382811B1 (en) 2002-05-07
FR2794217A1 (en) 2000-12-01
FR2794217B1 (en) 2001-07-20
EP1055864A3 (en) 2000-12-13
JP2000353402A (en) 2000-12-19
KR20010014978A (en) 2001-02-26
TW467249U (en) 2001-12-01

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