EP2095019B1 - Luminaire - Google Patents

Luminaire Download PDF

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Publication number
EP2095019B1
EP2095019B1 EP07724980.3A EP07724980A EP2095019B1 EP 2095019 B1 EP2095019 B1 EP 2095019B1 EP 07724980 A EP07724980 A EP 07724980A EP 2095019 B1 EP2095019 B1 EP 2095019B1
Authority
EP
European Patent Office
Prior art keywords
light according
screw
housing part
previous
leg
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
EP07724980.3A
Other languages
German (de)
English (en)
Other versions
EP2095019A1 (fr
Inventor
Gerhard Schwarz
Reiner Naumann
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 Protection Systems IP GmbH and Co KG
Original Assignee
Eaton Protection Systems IP GmbH and Co KG
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 Protection Systems IP GmbH and Co KG filed Critical Eaton Protection Systems IP GmbH and Co KG
Publication of EP2095019A1 publication Critical patent/EP2095019A1/fr
Application granted granted Critical
Publication of EP2095019B1 publication Critical patent/EP2095019B1/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
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
    • 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

Definitions

  • the invention relates to a lamp with at least one housing part and a pressure-tight connected by means of annenschraubrings translucent cover, wherein between the housing part and cover a flame extinguishing gap is formed.
  • Such lights are used as spotlights, headlights, suspension lights or the like in areas where explosion protection conditions must be met.
  • the corresponding flame-extinguishing gap has certain dimensions, which are given by appropriate standards and the like depending on the explosion protection.
  • In known from practice lights is to form the corresponding flame extinguishing gap previously necessary to connect the translucent cover with a metal ring or the like, between this metal ring and the housing part of the corresponding flame extinguishing gap is formed.
  • RU 22 69 716 C describes a lamp with at least one housing part and a pressure-tight connected by means of a mounting ring, translucent cover.
  • the corresponding housing part comprises a number of individual parts, such as body part, radial flange with annular projection, lower detachable part and mounting ring.
  • the mounting ring is connected by bolts or screws with the annular projection.
  • the cover has a radially outwardly projecting flange, between which and the flange with annular projection an air-tight layer is arranged.
  • the document GB 2 148 113 is considered to be the closest prior art and discloses all features of the preamble of claim 1.
  • the invention has for its object to improve a lamp of the type described above to the effect that in a simple constructive manner and while simplifying the assembly, a corresponding flame-extinguishing gap is formed without adversely affecting the recyclability. This object is solved by the features of patent claim 1.
  • the flame extinguishing gap is formed directly between a surface, in particular the outer surface, the cover and a surface, in particular the inner surface of the housing part, and the screw-on ring covers the flame extinguishing gap at its gap end pointing to the outside of the luminaire.
  • An additional metal ring is no longer necessary in this way and it also eliminates the connection of cover and metal ring by a suitable adhesive. As a result, the recycling of such a lamp is considerably simplified.
  • the translucent cover may be made of the above-mentioned glass, in particular borosilicate glass or also of a translucent plastic.
  • the housing part may also be made of plastic or metal.
  • the corresponding lamp can be constructed with respect to housing part and cover substantially rotationally symmetrical to a vertical longitudinal axis.
  • Other shapes are also conceivable, such as angular, in particular square and rectangular cross-sections for the lamp or additional facilities for attaching the lamp to a wall, ceiling or electrical equipment.
  • the corresponding flame extinguishing gap generally between the outer surface of the cover and a corresponding inner surface of the housing part, wherein the cover is usually at least partially inserted with a lower end in the housing part.
  • a simplified arrangement of the design of the flame extinguishing gap can be seen therein, when the cover is inserted with a lower free end portion in an at least upwardly open receptacle of the housing part and formed between the lower end portion and receiving the flame extinguishing gap.
  • this end of the cover which in particular is essentially allocated between the housing part and the end of the housing part facing the cover, is formed.
  • a simple possibility of assigning the corresponding surfaces to form the flame extinguishing gap results when the lower end portion is formed as a radially outwardly extended edge flange with at least flat edge outer side. This flat edge outside forms a boundary for the flame extinguishing gap.
  • the receptacle can, as a substantially radially outwardly widening receptacle, enclose the housing interior flat step outside be formed.
  • Flat edge outside of the edge flange and flat step outside of the receiving stage limit the flame guard gap.
  • the corresponding dimensions of the flame guard gap can be easily determined, in particular, when the heights of the edge flange and receiving stage are substantially the same. This results in the entire gap length essentially by the height of the edge flange and recording level or by the analog amount of edge outside and outside of the stage.
  • the width of the receiving step can be substantially equal to the wall thickness of the edge flange. This ensures that the edge flange does not protrude into the interior of the lamp, but also results in this area a substantially flat surface without diameter jumps or the like.
  • the Aufschraubring is screwed onto the housing part and holds in its screwed position the cover relative to the housing part.
  • the housing part at least in the region of the receiving stage have an external thread for screwing the Aufschraubringes.
  • At least one sealing element can be arranged at least between the free lower end of the edge flange and the stepped base of the receiving stage.
  • This sealing element may be formed as a sealing ring or the like. Depending on the wall thickness of the edge flange and two or more of these sealing elements may be arranged side by side.
  • the edge flange may have at its upper end opposite the lower end a radially inwardly facing paragraph. This paragraph can serve as a plant for the Aufschraubring and thus for fixing the cover relative to the housing part.
  • the screw-on ring can have an inverted L-shaped cross section, wherein a substantially vertical first L-leg is designed as a screw-on leg and a substantially horizontal second L-leg as a holding leg.
  • the Aufschraubschenkel is screwed by means of the corresponding external thread on the outside of the housing part, wherein in a corresponding Aufschraub ein the retaining leg with the flange of the edge flange in abutment and so fixes the cover within the housing part.
  • the retaining leg may have at its free pointing to the cover leg end a ganid.
  • This system nose can also be made of a softer material than the rest of the retaining leg.
  • a flexible bearing element can be arranged. This is partially compressed when screwing the Aufschraubringes and serves for flexible mounting of the cover in the housing part.
  • the bearing element can be designed as a circumferential around the cover in the region of the flange paragraph bearing ring.
  • the housing part may have a radially inwardly stepped screw-on step in the region of the external thread.
  • the corresponding external thread is arranged and the Aufschraubnote serves at least partially receiving the Aufschraubschenkels within the contour of the lamp.
  • the width of the Aufschraubrun is substantially equal to the wall thickness of the Aufschraubschenkels.
  • At least one securing element may be arranged between the screw-on ring and the housing part and / or cover. This securing element prevents loosening of the Aufschraubrings and thus a change in the dimensions of the flame extinguishing gap.
  • the Aufschraubring is only then solvable when the fuse element is removed or at least solved.
  • a simple embodiment of such a securing element may be a locking screw which can be screwed in the retaining leg.
  • FIG. 1 shows a side view of an embodiment of a substantially rotationally symmetrical light 1.
  • This has a translucent cover 4 made of glass, plastic or the like.
  • the cover 4 is fixed by means of a Aufschraubringes 3 to a lower housing part 2 also plastic or metal.
  • Other devices for arranging the lamp on a wall, ceiling or electrical equipment and electrical supply lines are not shown for simplicity.
  • the cover 4 essentially comprises a cylindrical lower part and a hemispherical upper part, which form approximately a cover dome.
  • FIG. 1 as well as in the following figures, the same parts are denoted by like reference numerals and are partially mentioned only together with a figure.
  • FIG. 2 corresponds to a section along II-II FIG. 1
  • the cover 4 has a lower end portion 10, see also FIG. 3 which indicate an enlargement of the detail "X" FIG. 2 equivalent.
  • This lower end section 10 is formed by an edge flange 12 which is widened in the radial direction.
  • the edge flange 12 is arranged in a receptacle 11 of the housing part 2.
  • This receptacle 11 is formed as a radially outwardly the housing interior 14 magnifying recording stage 15.
  • the edge flange 12 has, in the region of the receiving stage 15, an edge outer side 13 which, with a step outer side 16 of the receiving stage 15, delimits a flame extinguishing gap 5 in the radial direction.
  • the flame extinguishing gap 5 extends to the stepped bottom 24 and opposite with its gap end 9 to an upper end 25 of the edge flange 12.
  • the edge flange 12 has at this upper end 25 a flange 26 which has a substantially horizontal flat surface. This is arranged flush in the fixing position of the cover 4 to a free end surface 39 of the housing part 2, see FIGS. 2 and 3 ,
  • the receptacle 11 or receiving stage 15 is formed with a height 18 which corresponds to a height 17 of the edge flange 12 substantially.
  • a sealing member 22 in the form of an O-ring or the like is arranged.
  • a corresponding width 19 of the receiving stage 15 corresponds to a wall thickness 20 of the edge flange 12, so that it is arranged on its inside flush with the inner surface or inner side 7 of the housing part 2.
  • the housing part 2 For screwing on the Aufschraubrings 3, the housing part 2 in the region of the receiving stage 15 on its outer side an external thread 21. This is formed in the region of a radially inwardly extending Aufschraublace 33 of the housing part 2 in the vertical direction.
  • the embarkschraubring 3 has an L-shaped cross-section with a first substantially vertical leg as Aufschraubschenkel 27 and a second substantially horizontal leg as a holding leg 28.
  • the Aufschraubschenkel 27 is screwed onto the external thread 21, wherein at the same time the retaining leg 28 presses from above on the free end surface 39 in accordance sufficiently screwed position and on the flange 26.
  • a flexible bearing member 32 is additionally arranged, avoided by the direct contact between the support leg 28 and flange 26 and edge flange 12.
  • the holding leg 28 has a system nose 31 at this free leg end 30. This can be formed of a softer material.
  • the Aufschraubcut 33 has a width 34 which substantially corresponds to the wall thickness 29 of the Aufschraubschenkels 27. As a result, it is received by the screw-on step 33 so that their outer sides are each arranged substantially flush with the surface.
  • a locking screw 36 is screwed as a fuse element 35 in the retaining legs 28. In a securing position 37 of this locking screw 36, it is with its lower end 38 in contact with the free end surface 39 of the housing part 2 between receiving stage 15 and Aufschraubch 33rd
  • the corresponding flame extinguishing gap 5 directly between the outer surface 6, that is edge outer side 13 of the edge flange 12 and step outer side 16 of the receiving stage 15 is formed. No additional means for forming this flame-extinguishing gap are necessary, such as a metal ring to be connected to the outside of the cover 4 by an adhesive or the like. At the same time the corresponding flame extinguishing gap 5 at its upper end of the column 9 in the direction of the outside 8 of the lamp 1, see FIG. 3 , covered by the holding leg 28.
  • a recycling of the corresponding parts of the lamp is possible in a simple manner, since no gluing or the like are present and all parts are easily separated from each other by material properties and sorted.
  • the assembly of the lamp is simplified, since in the end only a plugging and screwing takes place without an adhesive must be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Claims (17)

  1. Luminaire (1) comprenant au moins une partie de boitier (2) et, relié à celle-ci de manière résistante à la pression, un couvercle (4) transparent à la lumière, luminaire
    dans lequel un interstice d'extinction de flamme (5) est réalisé entre la partie de boitier (2) et le couvercle (4) ,
    dans lequel le couvercle (4) est engagé, avec un tronçon d'extrémité inférieur libre (10), dans un logement d'accueil (11) de la partie de boitier (2) ouvert au moins vers le haut, et l'interstice d'extinction de flamme (5) est formé entre ce tronçon d'extrémité inférieur (10) et le logement d'accueil (11),
    caractérisé en ce que l'interstice d'extinction de flamme (5) est formé directement entre une surface extérieure (6) du couvercle (4) et une surface intérieure (7) de la partie de boitier (2), et le couvercle (4) est fixé sur la partie de boitier (2) au moyen d'une bague à visser (3), la bague à visser (3) recouvrant l'interstice d'extinction de flamme (5) au niveau de son extrémité d'interstice (9) dirigée vers le côté extérieur (8) du luminaire (1).
  2. Luminaire selon la revendication 1,
    caractérisé
    en ce que ledit tronçon d'extrémité inférieur (10) est réalisé sous forme de flasque de bordure (12) élargi radialement vers l'extérieur, présentant au moins un côté extérieur de bordure (13) plat.
  3. Luminaire selon la revendication 1 ou la revendication 2,
    caractérisé
    en ce que le logement d'accueil (11) est réalisé en tant que gradin d'accueil (15) élargissant l'intérieur du boitier (14) radialement vers l'extérieur et présentant un côté extérieur de gradin (16) sensiblement plat.
  4. Luminaire selon l'une des revendications précédentes,
    caractérisé
    en ce que les hauteurs (17, 18) du flasque de bordure (12) et du gradin d'accueil (15) sont sensiblement identiques.
  5. Luminaire selon l'une des revendications précédentes,
    caractérisé
    en ce que la largeur (19) du gradin d'accueil (15) est sensiblement égale à l'épaisseur de paroi (20) du flasque de bordure (12).
  6. Luminaire selon l'une des revendications précédentes,
    caractérisé
    en ce que la partie de boitier (2) présente, au moins dans la zone du gradin d'accueil (15), un filetage extérieur (21) sur lequel peut être vissée la bague à visser (3).
  7. Luminaire selon l'une des revendications précédentes,
    caractérisé
    en ce qu'au moins un élément d'étanchéité (22) est agencé entre l'extrémité inférieure libre (23) du flasque de bordure (12) et le fond de gradin (24) du gradin d'accueil (15).
  8. Luminaire selon l'une des revendications précédentes,
    caractérisé
    en ce que le flasque de bordure (12) présente à son extrémité supérieure (25) opposée à l'extrémité inférieure (23), un décrochement (26) dirigé radialement vers l'intérieur.
  9. Luminaire selon l'une des revendications précédentes,
    caractérisé
    en ce que la bague à visser (3) présente une section en forme de L inversé, une première aile de L sensiblement verticale étant réalisée sous forme d'aile à visser (27), et une deuxième aile de L sensiblement horizontale étant réalisée sous forme d'aile de maintien (28).
  10. Luminaire selon l'une des revendications précédentes,
    caractérisé
    en ce que l'aile à visser (27) et l'aile de maintien (28) présentent sensiblement les mêmes épaisseurs de paroi (29).
  11. Luminaire selon l'une des revendications précédentes,
    caractérisé
    en ce que l'aile de maintien (28) présente, à son extrémité d'aile libre (30) dirigée vers le couvercle (4), un mentonnet d'appui (31).
  12. Luminaire selon l'une des revendications précédentes,
    caractérisé
    en ce qu'au moins entre l'aile de maintien (28) et le gradin de flasque (26) est agencé, au moins par endroits, un élément d'appui flexible (32).
  13. Luminaire selon l'une des revendications précédentes,
    caractérisé
    en ce que la partie de boitier (2) présente, dans la zone du filetage extérieur (21), un gradin de vissage (33) en retrait radialement vers l'intérieur.
  14. Luminaire selon l'une des revendications précédentes,
    caractérisé
    en ce que la largeur (34) des gradins de vissage (33) est sensiblement égale aux épaisseurs de paroi (29) de l'aile de vissage (27).
  15. Luminaire selon l'une des revendications précédentes,
    caractérisé
    en ce qu'au moins un élément d'arrêt de sécurité (35) est agencé entre la bague à visser (3) et la partie de boitier (2) et/ou le couvercle (4).
  16. Luminaire selon l'une des revendications précédentes,
    caractérisé
    en ce que l'élément d'arrêt de sécurité (35) est réalisé sous la forme d'une vis d'arrêt de sécurité (36) réglable par vissage dans l'aile de maintien (28).
  17. Luminaire selon l'une des revendications précédentes,
    caractérisé
    en ce que la vis d'arrêt de sécurité (36), dans sa position de sécurité (37), est en appui, avec son extrémité inférieure (38) vissée, sur une surface d'extrémité (39) libre de la partie de boitier (2), qui est agencée entre le gradin d'accueil (15) et le gradin de vissage (33).
EP07724980.3A 2006-12-21 2007-05-08 Luminaire Active EP2095019B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006060782A DE102006060782B4 (de) 2006-12-21 2006-12-21 Leuchte
PCT/EP2007/004056 WO2008083722A1 (fr) 2006-12-21 2007-05-08 Luminaire

Publications (2)

Publication Number Publication Date
EP2095019A1 EP2095019A1 (fr) 2009-09-02
EP2095019B1 true EP2095019B1 (fr) 2017-10-25

Family

ID=38222235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07724980.3A Active EP2095019B1 (fr) 2006-12-21 2007-05-08 Luminaire

Country Status (10)

Country Link
US (1) US8408756B2 (fr)
EP (1) EP2095019B1 (fr)
CN (1) CN101568764B (fr)
AU (1) AU2007343447B2 (fr)
BR (1) BRPI0720372A2 (fr)
CA (1) CA2672855C (fr)
DE (1) DE102006060782B4 (fr)
NO (1) NO342881B1 (fr)
RU (1) RU2431078C2 (fr)
WO (1) WO2008083722A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10118538B2 (en) 2016-12-07 2018-11-06 Ford Global Technologies, Llc Illuminated rack

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148113A (en) * 1983-09-02 1985-05-30 Unilec Lighting Limited Flameproof enclosure

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
US2702849A (en) * 1949-08-23 1955-02-22 Crouse Hinds Co Explosion resisting lighting unit
DE1609038U (de) * 1950-03-27 1950-06-29 Bender & Wirth Explosionssichere gluehlampenfassung.
DE1609038C3 (de) 1965-06-16 1975-01-02 Bopp & Reuther Gmbh, 6800 Mannheim Unterflurhydrant mit ständig angeschlossen bleibendem Wasserentnahmerohr
US5379195A (en) * 1993-02-19 1995-01-03 Rms Lighting, Inc. Lighting fixture
DE9412638U1 (de) * 1994-08-05 1994-09-29 Abb Patent Gmbh, 68309 Mannheim Explosions- oder schlagwettergeschütztes Leuchtengehäuse
US5911499A (en) * 1995-09-21 1999-06-15 Hubbell Incorporated Emergency lighting fixture, especially for hazardous locations
DE20010707U1 (de) * 2000-05-31 2000-09-21 Hamacher GmbH, 45701 Herten Leuchte
DE20204003U1 (de) * 2002-03-13 2003-07-17 Bartec Componenten und Systeme GmbH, 97980 Bad Mergentheim Meldeleuchte
CN2672440Y (zh) * 2003-03-19 2005-01-19 李国平 隔爆长寿命照明灯具
RU2276307C1 (ru) * 2004-11-30 2006-05-10 Закрытое акционерное общество "ЭЛЕКТРОЛУЧ" Взрывобезопасный светильник с блокировкой
RU2269716C1 (ru) * 2005-02-07 2006-02-10 Закрытое акционерное общество "ЭЛЕКТРОЛУЧ" Взрывобезопасный светильник

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148113A (en) * 1983-09-02 1985-05-30 Unilec Lighting Limited Flameproof enclosure

Also Published As

Publication number Publication date
EP2095019A1 (fr) 2009-09-02
NO342881B1 (no) 2018-08-20
US20100103684A1 (en) 2010-04-29
AU2007343447B2 (en) 2013-03-28
NO20092401L (no) 2009-08-19
RU2431078C2 (ru) 2011-10-10
BRPI0720372A2 (pt) 2013-01-22
RU2009123929A (ru) 2011-01-27
US8408756B2 (en) 2013-04-02
CN101568764B (zh) 2012-02-08
DE102006060782A1 (de) 2008-06-26
CA2672855A1 (fr) 2008-07-17
WO2008083722A1 (fr) 2008-07-17
DE102006060782B4 (de) 2010-03-25
AU2007343447A1 (en) 2008-07-17
CA2672855C (fr) 2014-11-25
CN101568764A (zh) 2009-10-28

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