EP3044506B1 - Luminaire antidéflagrant - Google Patents

Luminaire antidéflagrant Download PDF

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Publication number
EP3044506B1
EP3044506B1 EP13752828.7A EP13752828A EP3044506B1 EP 3044506 B1 EP3044506 B1 EP 3044506B1 EP 13752828 A EP13752828 A EP 13752828A EP 3044506 B1 EP3044506 B1 EP 3044506B1
Authority
EP
European Patent Office
Prior art keywords
lamp
explosion
lamp housing
housing
cover plate
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
EP13752828.7A
Other languages
German (de)
English (en)
Other versions
EP3044506A1 (fr
Inventor
Toni Ott
Jens Burmeister
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.)
Eaton Intelligent Power Ltd
Original Assignee
Eaton Intelligent Power Ltd
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 Eaton Intelligent Power Ltd filed Critical Eaton Intelligent Power Ltd
Publication of EP3044506A1 publication Critical patent/EP3044506A1/fr
Application granted granted Critical
Publication of EP3044506B1 publication Critical patent/EP3044506B1/fr
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
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/12—Flameproof or explosion-proof arrangements
    • 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
    • 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
    • F21V29/505—Cooling arrangements characterised by the adaptation for cooling of specific components of reflectors
    • 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
    • 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
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • 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
    • 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
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0058—Reflectors for light sources adapted to cooperate with light sources of shapes different from point-like or linear, e.g. circular light sources
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/33—Elongate light sources, e.g. fluorescent tubes curved annular
    • 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 invention relates to an explosion-proof lamp with a lamp housing, with at least one arranged in the lamp housing light source, a light source associated with the reflection device for deflecting light emitted from the light source in the direction of a light exit opening of the lamp housing and a light source and / or the lamp housing associated cooling device.
  • Such an explosion-proof light is from the DE 10 2011 017 161 known.
  • a separate reflection device is arranged within the lamp housing, which is composed of a plurality of linear and curved sections.
  • specific brackets are formed within the lamp housing.
  • the light source is designed as a printed circuit board with a number of LEDs, which is arranged on a separate carrier. At this support a cooling device is also formed separately to the actual lamp.
  • Such a lamp is designed to be explosion-proof, this explosion protection in particular relates to corresponding connections of parts of the lamp, which connections between the housing interior and the environment of the lamp are formed.
  • WO 2012/105828 A1 describes a lamp with the features of the preamble of claim 1. LEDs as light sources are arranged on a support which is to conduct heat to the metallic housing of the lamp.
  • the carrier may for example be formed of a ceramic material.
  • DE 10 2010 037 920 A describes a lamp with a housing in which a number of light sources are arranged on an inwardly bent fastener.
  • US 2011/199767 discloses a LED light for showcases with an LED mounting area. This serves as a heat sink, which is also predicated on a reflection device.
  • US 2007/263393 A1 describes a lamp with a housing and a number of LEDs and a reflection element.
  • the LEDs are arranged on a thermally conductive element.
  • the lamp is arranged in a ceiling opening and has no further trained housing.
  • the invention has for its object to improve such a lamp to the effect that this simpler construction while maintaining its specific properties for cooling and reflection of the light in the direction of the light exit opening, is easier to manufacture and overall compact and inexpensive.
  • the explosion-proof lamp according to the invention is characterized in that an inner side of the lamp housing is formed at least in places as a reflection device and the cooling device in one piece with the lamp housing.
  • no separate devices need to be arranged in the luminaire or in the luminaire housing, which form, for example, a reflection device and a cooling device.
  • both devices can be formed directly by the luminaire housing.
  • a cover plate holder of the light exit opening is assigned, through which the cover plate relative to the lamp housing, in particular in the ignition protection Ex-d can be fastened.
  • the cover plate is handled separately and without contact, since it can be assigned by means of the cover plate holder of the light exit opening and fastened there.
  • the cover plate holder has a Auflegeflansch adjacent to a holder opening, on which the cover plate can be placed.
  • the corresponding reflection device can be formed directly through the inside of the lamp housing, if this is formed, for example, as a polished or otherwise reflective surface.
  • the reflection device is designed as a coating of the inside.
  • a coating can be applied directly during production of the luminaire housing and is arranged directly on the inside.
  • the luminaire or the luminaire housing can have different shapes, which can be selected depending on the field of use of the luminaire. In a simple embodiment, it may prove to be expedient if the luminaire housing is formed substantially semicylindrical or hemispherical, wherein along the curved Halbzylinder- / ball shell on the inside of the reflection device is formed.
  • the light exit surface is through a translucent or transparent cover plate covered.
  • the cover by means of the cover plate can in this case be such that the connection between the cover plate and the lamp housing in a corresponding explosion protection, such as Ex-d, is formed.
  • the light source can be formed from a plurality of LEDs arranged on a printed circuit board.
  • the arrangement of multiple circuit boards with corresponding LEDs is possible.
  • a simple and effective arrangement for the cooling device can be seen therein when it is formed on an outer side of the lamp housing.
  • cooling device has a number of cooling fins projecting outwardly from the outside of the luminaire housing.
  • These cooling fins can be arranged equidistant from each other and it is also possible that the density of the cooling fins is different in order, for example, in particular to cool the luminaire housing in the area of the light source more intensively.
  • cooling fins can extend over the entire length of the lamp housing.
  • these openings can be covered by in particular releasably attached to the lamp housing Endabdeckplatten. Also in this case, a corresponding connection between cover plates and luminaire housing can be formed in a corresponding degree of protection, such as ex-d.
  • Such a type of protection is also referred to as flameproof enclosure, in which parts that could ignite an explosive atmosphere, are arranged in a housing that in the event of an explosion of an explosive mixture inside the corresponding explosion pressure withstand. This avoids transmission of the explosion to the explosive atmosphere surrounding the housing.
  • a corresponding gap has two tasks. On the one hand, it serves to reduce the gas pressure and, moreover, it serves to reduce the temperature of the explosion gas so that an explosive atmosphere surrounding the flameproof enclosure can not be ignited.
  • Corresponding gaps may be provided, for example, between parts of the housing that are connected to each other, with such a gap extending from the housing interior to the surrounding atmosphere.
  • retaining flanges can protrude at both longitudinal ends of the outside of the lamp housing, through which retaining flanges fixing screws for releasably securing the opposite Endabdeckplatten can be passed.
  • the light source of the luminaire can be arranged on a separate carrier in the interior of the housing, although preferably an arrangement on the inside of the luminaire housing can be provided.
  • the inside of the luminaire housing may have at least one bearing flange projecting into the interior of the housing, which is provided for the releasable fastening of the light source.
  • such a bearing flange may extend along the light exit opening.
  • a connection between cover plate and support flange can be formed in particular in the ignition protection Ex-d.
  • the cover plate holder may have a bearing flange pointing outward from the support flange, which abuts in particular from below on the bearing flange to form a connection in particular the type of protection Ex-d.
  • a separating rib can project from the cover plate holder into the housing interior between the abutment flange and the abutment flange.
  • This barrier rib surrounds the cover plate and at the same time defines a corresponding recess into which the cover plate can be inserted and orientated by it.
  • lay-on flange and abutment flange extend in the same direction and are substantially horizontal.
  • said compound may be formed in particular in the ignition protection Ex-d.
  • such a plug-in flange can be designed as a screw-in ring, wherein a corresponding screw connection between the inside of the lamp housing and an outside of the screw-in ring can be effected by a particular Ex-D thread.
  • the printed circuit board is designed with LEDs as the circuit board ring.
  • the circuit board ring is then arranged according to its diameter in the hemispherical luminaire housing, so that, for example, the outside of the circuit board ring rests against the inside of the luminaire housing.
  • circuit board ring rests on an upper end of the Einschraubringes. There he is fastened accordingly to fix his position.
  • the circuit board ring is clamped between the upper end of the Einschraubringes and a stepped shoulder formed on the inside of the lamp housing when screwed into the lamp housing screw-in.
  • the circuit board ring is placed on the upper end of the screw and this screwed into the lamp housing, wherein in its screwed position, a clamping of the PCB ring between the upper end of the screw and the corresponding stepped paragraph on the inside of the lamp housing.
  • cooling device which is formed on the outside of the lamp housing by a number of cooling fins or the like. It is also conceivable that the cooling device is formed directly through the outside of the lamp housing and possibly also by the cover plate holder, without on this example, cooling fins or the like are formed.
  • FIG. 1 shows a perspective view obliquely from below of a first embodiment of a lamp according to the invention 1.
  • This is substantially semi-cylindrical with a corresponding half-cylinder shell 9 as part of the lamp housing second educated.
  • a cooling device 6 in the form of a number of cooling fins 16 is arranged on the curved outer side 15 of the lamp housing 2.
  • This cooling device 6 is formed integrally with the lamp housing 2.
  • the corresponding cooling ribs 16 extend over the entire length of the lamp housing 2, see length 18, and in addition to the same length also have the same height 17, see FIG. 2 ,
  • the corresponding cooling ribs 16 are arranged substantially equidistant from one another, wherein other devices can protrude from the outside 15 of the luminaire housing 2 between the cooling ribs.
  • Such devices are, for example, retaining flanges 22, which protrude at longitudinal ends 19 and 20 of the lamp housing 2 to the outside.
  • the retaining flanges 22 are used for receiving and supporting fastening screws 23. These are used for fastening of corresponding openings at the longitudinal ends 19, 20 of the lamp housing 2 covering Endabdeckplatten 21. These have substantially a semicircular shape.
  • a fastening means 41 is arranged between two adjacent cooling fins, by means of which the lamp housing can be fastened in a corresponding installation position.
  • a light exit opening 5 is arranged, which in FIG. 1 partially covered by a cover plate holder 25.
  • a cover plate 11 is visible, which is held by means of the cover plate holder 25 on the lamp housing 2 in an explosion-proof manner.
  • FIG. 2 makes a vertical section through the light 1 after FIG. 1 represents.
  • the corresponding cooling device 6 has six cooling fins 16 of the same height 17 and the same length 18 in the illustrated embodiment. These extend directly from the outside 15 of the lamp housing 2 to the outside.
  • a reflection device 4 is formed on an inner side 7 of the luminaire housing 2. This can also be formed by a coating 8, which is applied directly to the inside 7 of the lamp housing 2.
  • the reflection device 4 can be applied on the entire inner side at least in the region of the corresponding half-cylinder jacket 9. But it is also possible that the reflection device 4 is arranged only at locations on the inside, which is required for the reflection of light emitted by a light source 3 in the direction of the light exit opening 5.
  • light sources 3 are arranged on both sides of the light exit opening.
  • Each of the light sources has a printed circuit board 13 or 14 with a plurality of LEDs 12 arranged thereon.
  • the corresponding printed circuit board with LEDs can extend over the entire length of the lamp housing 2.
  • FIG. 2 At least some light rays 39 are shown, which emerge from the corresponding LEDs 12 and are reflected by means of the reflection device 4 in the direction of the light exit opening 5.
  • the corresponding light sources 3 are arranged on bearing flanges 24, which as part of the lamp housing 2 at the lower ends of the half-cylinder jacket 9 facing each other and the light exit opening 4 are arranged delimiting.
  • the corresponding bearing flanges 24 likewise extend essentially over the entire length of the luminaire housing 2.
  • the bearing flanges 24 form longitudinal edges of the light exit opening 5, wherein the Abdeckplattenhalter 25 is inserted into the housing interior 38 projecting separating ribs 29 in the light exit opening.
  • These partition ribs 29 extend substantially vertically relative to a support flange 27 and a contact flange 28.
  • the support flange 27 limits the holder opening 26 on both sides, and the cover plate 11 is placed on the support flange 27 from the housing interior 38.
  • a seal 30 is disposed between the barrier ribs 29 and lateral edges of the cover plate 11.
  • a corresponding connection between Auflegeflansch 27 and cover plate 11 takes place to provide a corresponding explosion protection in the type of protection Ex-d.
  • a corresponding connection in this type of protection is also formed between abutment flange 28 and bearing flange 24.
  • the cover plate holder 25 together with cover plate 11 and seal 30 would be a separately manageable part, which is a total of the lamp housing 2 by appropriate connection between abutment flange 28 and bearing flange 24 attachable.
  • the printed circuit board 13, 14 is usually in direct contact with the bearing flange 24.
  • a heat transfer layer is formed between the two, such as a thermal paste or the like.
  • a first heat dissipation from the LEDs 12 can take place.
  • special printed circuit board designs can be used which have a particularly good thermal conductivity, such as printed circuit boards with a metal core.
  • the heat of the LEDs can, for example, be forwarded to the metal core via a copper plated-through hole. From the metal core can then be passed directly to the heat of the lamp housing.
  • the thermal conductivity can be improved in this context by thermal paste or the like. It is also advantageous in this context if a corresponding heat transfer is improved by mounting the circuit board without unevenness and roughness of the surfaces to be joined.
  • Ex-d or flameproof enclosure is a type of protection in which the parts that can ignite an explosive atmosphere, are arranged in a housing, see, for example FIGS. 1 and 3 , This housing withstands internal pressure that could occur in the event of an explosive mixture inside the enclosure.
  • the housing is provided with corresponding columns, see, for example, a corresponding gap between the bearing flange 24 and abutment flange 28.
  • a corresponding gap may also be formed between the cover plate 11 and support flange 27, but here also a bonding is a possible connection.
  • FIG. 3 shows a perspective view obliquely from below of a second embodiment of a lamp according to the invention 1.
  • This has a hemisphere shape with a corresponding hemispherical shell 10 as part of the lamp housing 2.
  • the diameter of the hemisphere shell 10 is slightly increased in order to arrange there the corresponding Abdeckplattenhalter 25, see also FIG. 4 ,
  • the side of the luminaire housing 2 is a line feedthrough device 42, through which a corresponding electrical supply line into the housing interior 38 in an explosion-proof manner can be introduced.
  • the reflection device 4 is formed on an inner side 7 of the luminaire housing 2.
  • a stepped shoulder 37 is formed, see also FIG. 4 which serves together with an upper end 36 of a Einsteckflansches 32 of the cover plate holder 25 for clamping a corresponding circuit board 13, 14 with LEDs 12 as a light source 3.
  • the circuit board 13, 14 is formed as a total circumferential circuit board ring 35. This is clamped at its outer edge in the manner described above.
  • circuit board ring 30 corresponding LEDs 12 are arranged and a corresponding opening in the circuit board ring 35 is associated with the light exit opening 5. This is surrounded by the lower end portion 40.
  • a cover plate holder 25 is also used in the second embodiment.
  • This has analogous to the first embodiment, a radially inwardly projecting Ablegeflansch 27, to which from above, d. H. from the housing interior 38 forth, the cover plate 11 can be placed.
  • the cover plate holder 25 Analogous to the separating rib 29 according to the first embodiment, the cover plate holder 25 at lateral outer ends 31 of the Auflegeflansches 27 the pointing into the housing interior 38 Einsteckflansch 32. Between this and the cover plate 11, a seal 30 is arranged.
  • an additional fastening ring 43 may be provided, through which the cover plate 1 is pressed in the direction of Auflegeflansch 27 and held in abutment with the Auflegeflansch 27.
  • the Einsteckflansch 32 is formed in an advantageous manner as Einschraubring 33, wherein between this and in particular its outer side and an inner side of the lower End portion 40 an Ex-d thread 34 is formed. This is used for easy screwing the screw 33 in the lower end portion 40 of the lamp housing 2 and at the same time to realize a connection with appropriate explosion protection.
  • the corresponding screw-in depth of the screw-in ring 33 can be determined by at its lower end outwardly projecting edge flange 44, which at a screw-in position of the circuit board ring 35, see FIG. 4 , Rests substantially from below at the lower end portion 40.
  • a connection between cover plate 11 and Auflegeflansch 27 may be made in a second embodiment, for example by gluing.
  • the reflection device 4 is realized in each case directly by a corresponding inner side 7 of the luminaire housing 2, wherein in addition a coating 8 can be applied on the inside.
  • the cooling device 6 is formed directly and integrally by the outer side 15 of the lamp housing 2, wherein the outer side can have corresponding cooling ribs for enhancing the cooling effect.
  • a corresponding embodiment of the lamp in an explosion-proof manner including in particular a corresponding cover plate holder 25 is provided between which and in particular the cover plate a corresponding explosion-proof connection is realized.
  • This can be done by a corresponding gap or by an adhesive bond.
  • the corresponding explosion protection is also realized by, for example, a corresponding mounting ring 43, see FIG. 4 , is also used.
  • cover plate holder 25 in addition to the cooling by the lamp housing 2 can take over a further cooling function, so that in particular a dissipation of heat can be made directly from the circuit board through the cover plate holder 25 to the outside.
  • the corresponding cooling elements are formed of suitable materials, such as metals, heat-conducting plastic materials, ceramics or the like.

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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)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (18)

  1. Luminaire antidéflagrant (1) avec un boîtier de luminaire (2), au moins une source lumineuse (3) agencée dans le boîtier de luminaire (2), un dispositif réflecteur (4) associé à la source lumineuse (3) pour le renvoi de lumière émise par la source lumineuse (3) en direction d'une ouverture de sortie de lumière (5) du boîtier de luminaire (2) et un dispositif de refroidissement (6) associé à la source lumineuse (3) et/ou au boîtier de luminaire (2), dans lequel le dispositif de refroidissement (6) est réalisé d'un seul tenant avec le boîtier de luminaire (2),
    caractérisé en ce qu'une face intérieure (7) du boîtier de luminaire (2) est réalisée au moins par endroits comme dispositif réflecteur (4), dans lequel l'ouverture de sortie de lumière (5) est recouverte par une plaque de recouvrement (11) translucide ou transparente, un support de plaque de recouvrement (25) est associé à l'ouverture de sortie de lumière (5), par lequel la plaque de recouvrement (11) peut être fixée par rapport au boîtier de luminaire (2) en particulier dans le type de protection Ex-d et le support de plaque de recouvrement (25) présente une bride de pose (27) entourant une ouverture de support (26), sur laquelle la plaque de recouvrement (11) peut être posée.
  2. Luminaire antidéflagrant (1) selon la revendication 1, caractérisé en ce que le dispositif réflecteur (4) est réalisé comme revêtement (8) de la face intérieure (7).
  3. Luminaire antidéflagrant (1) selon la revendication 1 ou 2, caractérisé en ce que le boîtier de luminaire (2) est réalisé sensiblement en forme de demi-cylindre ou d'hémisphère, dans lequel le long de l'enveloppe de demi-cylindre/sphère courbée (10) le dispositif réflecteur (4) est réalisé sur sa face intérieure (7).
  4. Luminaire antidéflagrant (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la source lumineuse (3) est formée d'une pluralité de LED (12) agencées sur une carte de circuit imprimé (13, 14).
  5. Luminaire antidéflagrant (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de refroidissement (6) est réalisé sur une face extérieure (15) du boîtier de luminaire (2), et le dispositif de refroidissement présente en particulier un nombre de nervures de refroidissement (16) dépassant vers l'extérieur de la face extérieure (15) du boîtier de luminaire (2).
  6. Luminaire antidéflagrant (1) selon la revendication 5, caractérisé en ce que les nervures de refroidissement (16) présentent la même hauteur (17) et/ou longueur (18).
  7. Luminaire antidéflagrant (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que des ouvertures sont recouvertes sur des extrémités longitudinales (19, 20) opposées du boîtier de luminaire (2) par des plaques de recouvrement d'extrémité (21) fixées en particulier amovibles sur le boîtier de luminaire, dans lequel en particulier des brides de retenue (22) dépassent aux deux extrémités longitudinales (19, 20) de la face extérieure (15) du boîtier de luminaire, par lesquelles des vis de fixation (23) peuvent être passées pour la fixation amovible des plaques de recouvrement d'extrémité (21) opposées.
  8. Luminaire antidéflagrant (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la source lumineuse (3) est agencée sur la face intérieure (7) du boîtier de luminaire (2).
  9. Luminaire antidéflagrant (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la face intérieure (7) du boîtier de luminaire (2) présente une bride de palier (24) faisant saillie à l'intérieur du boîtier (38) pour la fixation amovible de la source lumineuse (3), dans lequel la bride de palier (24) s'étend en particulier le long de l'ouverture de sortie de lumière (5).
  10. Luminaire antidéflagrant (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la liaison entre plaque de recouvrement (11) et bride de pose (27) est exécutée dans le type de protection Ex-d.
  11. Luminaire antidéflagrant (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la liaison entre la plaque de recouvrement (11) et la bride de pose (27) est formée par collage.
  12. Luminaire antidéflagrant (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le support de plaque de recouvrement (25) présente une bride d'appui (28) tournée vers l'extérieur de la bride de pose (27), qui repose par le bas sur la bride de palier (24) en formant une liaison en particulier du type de protection Ex-d.
  13. Luminaire antidéflagrant (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une nervure de séparation (29) fait saillie du support de plaque de recouvrement (25) à l'intérieur du boîtier (38) entre la bride de pose (27) et la bride d'appui (28), dans lequel en particulier entre la nervure de séparation (29) et la plaque de recouvrement (11) est agencée une garniture d'étanchéité (30).
  14. Luminaire antidéflagrant (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une bride d'enfichage (32) fait saillie en direction de l'intérieur du boîtier (38) d'une extrémité latérale (31) de la bride de pose (27), laquelle peut être reliée à la face intérieure (7) du boîtier de luminaire (2), dans lequel la liaison est réalisée en particulier dans le type de protection Ex-d.
  15. Luminaire antidéflagrant (1) selon la revendication 14, caractérisé en ce qu'en cas de boîtier de luminaire (2) sensiblement en forme d'hémisphère la bride d'enfichage (32) est réalisée comme anneau de vissage (33), dans lequel un vissage entre la face intérieure (7) du boîtier de luminaire (2) et une face extérieure de l'anneau de vissage (33) est effectué par un filet Ex-d en particulier.
  16. Luminaire antidéflagrant (1) selon les revendications 4 et 15, caractérisé en ce que la carte de circuit imprimé (13, 14) avec des LED (12) est réalisée comme anneau de carte de circuit imprimé (35), dans lequel l'anneau de carte de circuit imprimé (35) est logé en particulier sur l'anneau de vissage (33) et de préférence repose sur une extrémité supérieure (36) de l'anneau de vissage (33).
  17. Luminaire antidéflagrant (1) selon la revendication 16, caractérisé en ce que l'anneau de carte de circuit imprimé (35) est serré entre l'extrémité supérieure (36) de l'anneau de vissage (33) et un épaulement étagé (37) formé sur la face intérieure (7) du boîtier de luminaire (2) en cas d'anneau de vissage (33) vissé dans le boîtier de luminaire (2).
  18. Luminaire antidéflagrant (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de refroidissement (6) est formé par la face extérieure (15) du boîtier de luminaire (2).
EP13752828.7A 2013-08-13 2013-08-13 Luminaire antidéflagrant Active EP3044506B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/002431 WO2015021995A1 (fr) 2013-08-13 2013-08-13 Luminaire antidéflagrant

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EP3044506A1 EP3044506A1 (fr) 2016-07-20
EP3044506B1 true EP3044506B1 (fr) 2018-05-09

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US (1) US10317063B2 (fr)
EP (1) EP3044506B1 (fr)
CN (2) CN105874267A (fr)
BR (1) BR112016002840A2 (fr)
TW (1) TW201525356A (fr)
WO (1) WO2015021995A1 (fr)

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Also Published As

Publication number Publication date
CN105874267A (zh) 2016-08-17
EP3044506A1 (fr) 2016-07-20
BR112016002840A2 (pt) 2017-08-01
US10317063B2 (en) 2019-06-11
CN111174183A (zh) 2020-05-19
US20160186975A1 (en) 2016-06-30
WO2015021995A1 (fr) 2015-02-19
TW201525356A (zh) 2015-07-01

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