EP0264039B2 - Luminaire antidéflagrant avec boîtier de luminaire et globe résistant à la pression - Google Patents
Luminaire antidéflagrant avec boîtier de luminaire et globe résistant à la pression Download PDFInfo
- Publication number
- EP0264039B2 EP0264039B2 EP87114458A EP87114458A EP0264039B2 EP 0264039 B2 EP0264039 B2 EP 0264039B2 EP 87114458 A EP87114458 A EP 87114458A EP 87114458 A EP87114458 A EP 87114458A EP 0264039 B2 EP0264039 B2 EP 0264039B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- components
- housing
- lamp
- filler
- light
- 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.)
- Expired - Lifetime
Links
Images
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
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/04—Provision of filling media
Definitions
- the invention relates to a lamp according to the preamble of claim 1.
- a lamp of the type mentioned has a lamp housing in which the individual electrical components for supplying the lamp, which can either be an incandescent lamp or a fluorescent lamp, are housed.
- These luminaire housings if they are designed to be explosion-proof in type of protection "d", flameproof enclosure, are predominantly made of metal; the transparent cover attached to this metal housing is made of glass.
- Such a lamp is known for example from US-A 4 142 179.
- the lamp housing is made of metal and - because it is a relatively small lamp - the cover part is made of plastic.
- the free volume inside the luminaire housing must not exceed 3,000 cm3.
- the cover part can also consist of transparent plastic. Then the area that allows light to pass through must not be larger than 8,000 cm2.
- the object of the invention is to provide a lamp of the type mentioned, in which the lamp housing and the cover are made of plastic.
- a lamp has become known from DE-A 25 31 968 in which the housing is made of plastic.
- the housing is completely filled with casting resin or a similar hardening plastic, the housing of the lamp according to DE-A 25 31 968 is not one that can be referred to as pressure-resistant encapsulation.
- the free residual space between the filler parts and the electrical components inside the housing is always kept to less than 3,000 cm3. It can thereby be achieved that the housings previously designed as metal housings can now be made of plastic, provided the wall thickness is correctly dimensioned.
- the filler parts can be designed as carrier parts for the electrical components, or they can serve as adapters; the filling parts are then expediently made of foamed plastic. Of course, they can also consist of metal or other materials.
- filler, sand, quartz powder or glass balls can be used, which have the advantage that the residual space to be filled has any shape can because the sand or the quartz powder or the glass balls in their entirety do not surround a defined space, for example a quarder or the like.
- liquids can also be filled in, which is particularly advantageous when the electrical components have to be cooled. The liquid then serves as a cooling liquid.
- the filling parts can of course also be made of ceramic, metal, or a combination of these materials.
- large-volume filler parts are also provided in the cover part in order to limit the transparent, translucent surface of the cover part to an area of less than 8,000 m2.
- the reflector carrier for example, can be used as such a large-volume filling part.
- the cover part can also be made of plastic.
- the lamp 10 consists of a lamp housing 11 and a cover part 12 attached to it.
- the lamp housing 11 is closed by means of an end wall 13, so that the housing 11 together with the end wall 13 meets the requirements of "pressure-resistant encapsulation".
- Electrical components 14 and 15 are located within the luminaire housing 11. Other components may be present, but are not shown.
- the volume of the interior of the lamp housing 11 with the end wall 13 taking into account the electrical components 14 and 15 is in any case significantly greater than 3000 cm3.
- the electrical components 14 and 15 are held in a carrier part 16, in which holding recesses 17 and 18 adapted to the electrical components 14 and 15 are provided.
- a carrier upper part 21 provided with further recesses 19 and 20 is placed and the unit formed thereby from the carrier lower part 16, carrier upper part 21 and the electrical components 14 and 15 embedded therein into the interior of the housing 11 used and then closed the lamp housing 11 by means of the cover wall 13.
- the residual volume 22 thus formed has a volume of less than 3000 cm3 if the two carrier parts 16 and 21 are suitably dimensioned.
- the two support parts 16 and 21 thus serve as filler parts and are formed here from a suitable, foamed plastic and fixed in the interior of the lamp housing in a manner not shown.
- the cover part 12 is also encapsulated in a pressure-resistant manner and has therein a wall 23 on which a base 24 is fastened for holding a lamp 25; the cover part 12 with the wall 23 is encapsulated in a pressure-resistant manner.
- adapter parts for example in the form of a reflector 26 or 27 are formed to limit the transparent surface 28 to values smaller than 8000 cm2, as shown schematically in the drawing. This ensures that the cover 12 can no longer be made of glass, but also made of plastic.
- the building elements can be fastened on carriers. Then the rest of the room would have to be filled with filler parts.
- these filler parts could be a liquid that easily dissipates the heat generated on the components to the outside.
Landscapes
- 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)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Claims (4)
- Appareil d'éclairage comportant un boîtier (11) formant un blindage anti-déflagrant et, fixé sur celui-ci, un couvercle en matériau transparent formant également un blindage anti-déflagrant ainsi que des composants électriques (14, 15) logés à l'intérieur du boîtier (11) et destinés à l'alimentation en courant électrique d'au moins une lampe (25) située dans le couvercle (12), caractérisé par le fait que le boîtier (11) et le couvercle (12) sont réalisés chacun en matière plastique et qu'il est prévu avec les composants électriques (14, 15) ou la lampe (25), dans le boîtier (11) et dans le couvercle (12), des éléments de remplissage (16, 21; 26, 27) de volume important, le volume des éléments de remplissage (16, 21; 26, 27) étant tel qu'il subsiste entre la surface intérieure du boîtier (11) et la surface extérieure des éléments de remplissage (16, 21; 26, 27) et les composants électriques (14, 15) un volume résiduel (22, 28) libre inférieur à 3.000 cm³ ou que la zone translucide du couvercle (12) occupe une surface inférieure à 8.000 cm².
- Appareil d'éclairage selon la revendication 1, caractérisé par le fait que les éléments de remplissage (16, 21) à l'intérieur du boîtier servent au moins partiellement de support pour les composants électriques (14, 15).
- Appareil d'éclairage selon l'une des revendications précédentes, caractérisé par le fait que les éléments de remplissage sont en matière plastique, de préférence en matière plastique moussée.
- Appareil d'éclairage selon l'une des revendications précédentes, caractérisé par le fait que les éléments de remplissage se présentent sous la forme de grains et que l'on utilise pour cela du sable, de la poudre de quartz, des billes de verte, des éléments en duroplastes ou en thermoplastes, des éléments en élastomère, de la céramique et du métal ainsi qu'une combinaison de ces matériaux et liquides.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863634556 DE3634556A1 (de) | 1986-10-10 | 1986-10-10 | Explosions- oder schlagwettergeschuetzte leuchte mit druckfest gekapseltem leuchtengehaeuse und daran befestigtem transparentem abdeckteil |
DE3634556 | 1986-10-10 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0264039A2 EP0264039A2 (fr) | 1988-04-20 |
EP0264039A3 EP0264039A3 (en) | 1989-07-26 |
EP0264039B1 EP0264039B1 (fr) | 1993-03-03 |
EP0264039B2 true EP0264039B2 (fr) | 1995-12-13 |
Family
ID=6311470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87114458A Expired - Lifetime EP0264039B2 (fr) | 1986-10-10 | 1987-10-03 | Luminaire antidéflagrant avec boîtier de luminaire et globe résistant à la pression |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0264039B2 (fr) |
DE (2) | DE3634556A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017112146A1 (de) | 2017-06-01 | 2018-12-06 | R. Stahl Schaltgeräte GmbH | Explosionsgeschützte Leuchte |
GB2573804B (en) * | 2018-05-18 | 2022-07-27 | Hubbell Ltd | Driver assembly for a lighting fixture |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE692585C (de) * | 1938-05-29 | 1940-06-22 | Friemann & Wolf G M B H | Elektrische Sicherheitsgrubenleuchte |
US4142179A (en) * | 1971-04-19 | 1979-02-27 | Lowndes Roy B W | Safety warning lamps for adverse or hazardous atmospheres |
DE2531968C2 (de) * | 1975-07-17 | 1986-02-13 | R. Stahl Schaltgeräte GmbH, 7118 Künzelsau | Explosionsgeschützter Leuchtmelder |
DE2633716C3 (de) * | 1976-07-27 | 1980-03-13 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schlagwetter- und explosionssichere Leuchte |
US4388681A (en) * | 1980-12-15 | 1983-06-14 | Keene Corporation | Hazardous location light fixture |
DE8437802U1 (de) * | 1984-12-22 | 1987-06-25 | Hirsch, Martin, Dr., 7000 Stuttgart | Leuchte |
DE3447133A1 (de) * | 1984-12-22 | 1986-07-03 | Hirsch, Martin, Dr., 7000 Stuttgart | Leuchte |
-
1986
- 1986-10-10 DE DE19863634556 patent/DE3634556A1/de not_active Ceased
-
1987
- 1987-10-03 DE DE8787114458T patent/DE3784434D1/de not_active Expired - Fee Related
- 1987-10-03 EP EP87114458A patent/EP0264039B2/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0264039A3 (en) | 1989-07-26 |
EP0264039B1 (fr) | 1993-03-03 |
EP0264039A2 (fr) | 1988-04-20 |
DE3784434D1 (de) | 1993-04-08 |
DE3634556A1 (de) | 1988-04-14 |
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