EP1253375A2 - Leuchte mit Explosions-Schutz - Google Patents
Leuchte mit Explosions-Schutz Download PDFInfo
- Publication number
- EP1253375A2 EP1253375A2 EP02004722A EP02004722A EP1253375A2 EP 1253375 A2 EP1253375 A2 EP 1253375A2 EP 02004722 A EP02004722 A EP 02004722A EP 02004722 A EP02004722 A EP 02004722A EP 1253375 A2 EP1253375 A2 EP 1253375A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- opening
- wall
- gap
- circumferential
- luminaire according
- 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.)
- Granted
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
- 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
- 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 with explosion protection, with at least one side an opening having a hollow body for receiving one or more Illuminant and a cover which is arranged on the opening.
- Luminaires with the identification "Ex” are for use in potentially explosive environments provided and come for example on drilling platforms or gas tankers Commitment. In the event of an explosion inside the luminaire, no explosion sparks are permitted exit outside.
- a tube is usually provided as the hollow body, which preferably is closed at both ends by covers and lids, which prevent explosion sparks in the event of an explosion. The construction of the Transition between the hollow body and the respective cover on at least one End is of great importance for the pressure resistance of the lamp.
- luminaires with flameproof encapsulation are particularly according to European standards EN 50014/50018 - luminaires of the type "E Ex d" - and preferably in Connection addressed using "II B" and protection class IP67.
- the lamp is preferably two or more fluorescent lamps (e.g. lamps with each 18 or 36 watts and intended for 230 volts / 50 Hertz).
- supply lines and a ballast arranged inside the Luminaire holding means.
- a free edge of the opening of the hollow body thus sits in the manner of a groove circumferential deepening.
- the groove is significantly wider than this for insertion the surrounding wall would be required.
- Not that of the surrounding wall filled volume of the circumferential depression is at least partially through on both sides filled a potting compound.
- This has an adhesive and sealing function and is to select accordingly.
- the outer gap or inner gap are preferably complete filled with the sealing compound.
- the width of the outer gap corresponds approximately to the width of the Internal gap or is slightly larger, in particular a maximum of twice as large. Corresponding is in the outer gap with full filling a maximum of twice as much casting compound as insertable into the inner gap.
- the free edge of the opening of the hollow body preferably has an opening-side End face - between opening-side outer surface and opening-side inner surface - and comes in particular with this on a floor of the circumferential depression lie.
- the opening advantageously has a circular cross section.
- Corresponding the circumferential depression then also follows a circular shape.
- the circumferential wall or the free edge of the opening preferably extends parallel to a main longitudinal axis of the hollow body or parallel to one through one Center of the opening axis.
- the inner wall and the outer wall of the circumferential depression are advantageously directed parallel to one another, in particular parallel to one of the two previously mentioned axes. Deviations from the parallel alignment are possible.
- An embodiment is preferred in which the inner wall and the outer wall together form a circumferential groove that is slightly conical with the hollow body decreasing width.
- the inner wall is preferably 4 ° opposite the outer wall inclined with a tolerance of +/- 4 ° corresponding to one Inclination from 0 ° to 8 ° in total.
- Opposite the main longitudinal axis are the inner ones Wall and outer wall inclined by about 0 ° to 4 °.
- the decreasing width of the Recess or groove surprisingly results in favorable pressure conditions within the recess or groove.
- FIG. 1 An incompletely complete lamp 10 is shown in perspective in FIG. 1. You can see a cylindrical, translucent tube made of plastic, here made of Polycarbonate with an opening 14 at each end and a cover 16 on the Opening 14. The internal structure of the lamp 10, namely the illuminant, is not shown. Holding device, ballast and cable feeds. A is also not visible Lid for closing the sleeve-shaped cover 16.
- the luminaire 10 is an E Ex d luminaire with protection class IP67 according to European Standards EN 50014/50018 carried out.
- the cover 16 is preferably made of a seawater-resistant material, such as the alloy G-AI Mg 5 Si.
- the tube 12 has an outer diameter of approximately 15 cm; Total stretches the lamp 10 over about 75 cm (single length) or about 140 cm (double Length). The selection and number of lamps are adapted to this.
- the lamp simple length preferably contains one or more fluorescent lamps of the minimum overall strength 36 watts.
- the supply voltage is preferably 230 volts at 50 Hertz provided.
- FIG. 2 shows the connection of the cover 16 to the tube 12. With two covers 16 provided at the opposite openings 14 these are pulled against each other by tie rods 18.
- the tie rods 18 are parallel to a main longitudinal axis 20 of the lamp 10 inside the tube 12 arranged.
- Each cover 16 has on an inner circumference 22 two eyes 24 which lie opposite each other just below the main longitudinal axis 20, see FIG. 4.
- the ends of the pull rods 18 are passed through the eyes 24 and with Screws 26, 28 secured twice. Between cover 16 and tube 12 is a Sealing ring 30 or protective ring arranged. The connection shown in Fig. 2 between the Cover 16 and tube 12 are provided at both ends of tube 12. By Tightening the nuts 26 in both covers 16, these are pressed against the tube 12.
- the cover 16 is constructed in a special way. 3 shows those in FIGS. 2 and 4 side of the cover 16 facing away from the viewer.
- Inner wall 34 and outer Wall 36 does not extend exactly parallel to the main longitudinal axis 20 both walls slightly inclined towards the main longitudinal axis, preferably around 2 ° each, so that the two walls 34, 36 are inclined towards each other is about 4 °. Deviations in the total inclination of +/- 4 ° are possible in particular.
- One of the walls, for example the inner wall 34 can also be parallel to the main longitudinal axis 20 aligned, while the other wall - in this case the outer Wall 36 - is arranged inclined to this.
- the tube 12 is seated with a circumferential wall 40 in the recess 32.
- the circumferential wall 40 has an opening-side inner surface 42 and one for this opposite outer surface 44 and an opening-side end surface 46. This is preferably on the floor 38.
- the width of the depression 32 is a multiple - preferably three times - the thickness the circumferential wall 40.
- inner diameter and outer diameter of the recess 32 are coordinated so that between the inner wall 34 and the Inner surface 42 has an inner gap 50 and between outer wall 36 and outer surface 44 an outer gap 52 are formed.
- Inner gap 50 and outer gap 52 have approximately the same Width or a similar volume and are each complete with the sealing compound 48 completed.
- Tube 12 and cover 16 are used in the manufacture of the lamp held centered to each other until the potting compound 48 has solidified in the recess 32.
- the potting compound 48 is particularly pressure-resistant. Only then is one Classification as E Ex d luminaire possible.
- An adhesive sealant from Dow is preferably used as the potting compound 48 Corning, namely Dow Corning 933 with associated hardener Dow Corning 993 and suitable primer used.
- Tube 12 and covers 16 are essentially in the area of their connections rotationally symmetrical. This is for the principle of the present invention advantageous but not mandatory. Deviations from the circular cross section are possible about oval, semi-circular or rectangular cross-sections.
- another type can be provided as a hollow body, for example a one-sided (or one-sided base) open body, a spherical or teardrop shape. It is important to seal the circumferential wall 40 in the recess 32 on both sides.
- the specified electrical sizes can be as required and country-specific Regulations are modified or adapted. Even more can Fluorescent lamps or other lamps can be provided inside the tube 12.
- Holding means for fastening the lamp 10 to a are not shown or explained Ceiling or wall. Suitable clamps may include tube 12 or with the covers 16 be connected.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
- Fig. 1
- Eine Leuchte mit einer Röhre als Hohlkörper und beidseitigen Abdeckungen in perspektivischer Darstellung,
- Fig. 2
- ein Ende einer Röhre mit einer Abdeckung in perspektivischer, auseinandergezogener Darstellung,
- Fig. 3
- die Abdeckung gemäß Fig. 2 in perspektivischer Darstellung, jedoch aus einem um 180° geänderten Blickwinkel,
- Fig. 4
- die Abdeckung gemäß Fig. 2 in axialer Draufsicht,
- Fig. 5
- einen Schnitt durch die Abdeckung gemäß Fig. 4 entlang der Linie V-V,
- Fig. 6
- ein Detail der Abdeckung in vergrößerter Darstellung, nämlich eine Nut mit eingesetzter Röhre.
- 10
- Leuchte
- 12
- Röhre
- 14
- Öffnungen
- 16
- Abdeckungen
- 18
- Zugstangen
- 20
- Hauptlängsachse
- 22
- Innenumfang
- 24
- Augen
- 26
- Muttern
- 28
- Muttern
- 30
- Dichtring
- 32
- Vertiefung
- 34
- innere Wandung
- 36
- äußere Wandung
- 38
- Boden
- 40
- umlaufende Wandung
- 42
- Innenfläche
- 44
- Außenfläche
- 46
- Stirnfläche
- 48
- Vergussmasse
- 50
- Innenspalt
- 52
- Außenspalt
- 54
- offene Seite
- 56
- Innengewinde
Claims (8)
- Leuchte (10) mit Explosions-Schutz, einem zumindest einseitig eine Öffnung aufweisenden Hohlkörper zur Aufnahme für ein oder mehrere Leuchtmittel und einer Abdeckung (16), die auf der Öffnung (14) angeordnet ist, mit folgenden Merkmalen:a) der Hohlkörper weist eine im Bereich der Öffnung (14) umlaufende Wandung (40) auf,b) die umlaufende Wandung (40) weist eine öffnungsseitige Innenfläche (42) und eine öffnungsseitige Außenfläche (44) auf,c) die Abdeckung (16) weist eine umlaufende Vertiefung (32) mit einer inneren Wandung (34) und einer äußeren Wandung (36) auf,d) bei auf der Öffnung (14) angeordneter Abdeckung (16) kommt die umlaufende Wandung (40) in der umlaufenden Vertiefung (32) zu liegen, wobei zwischen öffnungsseitiger Innenfläche (42) und innerer Wandung (34) ein Innenspalt (50) gebildet ist, und wobei zwischen öffnungsseitiger Außenfläche (44) und äußerer Wandung (36) ein Außenspalt (52) gebildet ist,e) der Außenspalt (52) ist zumindest teilweise mit einer Vergussmasse (48) ausgefüllt,f) der Innenspalt (50) ist zumindest teilweise mit einer Vergussmasse (48) ausgefüllt,
- Leuchte nach Anspruch 1, dadurch gekennzeichnet, dass Außenspalt (52) und Innenspalt (50) vollständig mit Vergussmasse (48) ausgefüllt sind.
- Leuchte nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Öffnung (14) einen kreisförmigen Querschnitt aufweist.
- Leuchte nach Anspruch 1, dadurch gekennzeichnet, dass sich die umlaufende Wandung (40) zumindest im Bereich der Öffnung (14) parallel zu einer Hauptlängsachse (20) des Hohlkörpers erstreckt.
- Leuchte nach Anspruch 1, dadurch gekennzeichnet, dass sich die umlaufende Wandung (40) zumindest im Bereich der Öffnung (14) parallel zu einer durch einen Mittelpunkt der Öffnung (14) gehenden Achse erstreckt.
- Leuchte nach Anspruch 1, dadurch gekennzeichnet, dass zwischen öffnungsseitiger Außenfläche (44) und öffnungsseitiger Innenfläche (42) eine öffnungsseitige Stirnfläche (46) vorgesehen ist, die auf einem Boden (38) der umlaufenden Vertiefung (32) oder einem bodenseitigen Dichtring (30) aufliegt.
- Leuchte nach Anspruch 1, dadurch gekennzeichnet, dass die innere Wandung (34) und die äußere Wandung (36) zueinander parallel gerichtet sind.
- Leuchte nach Anspruch 1, dadurch gekennzeichnet, dass die innere Wandung (34) und die äußere Wandung (36) zusammen eine umlaufende Nut bilden, die leicht konisch ausgebildet ist, mit zum Hohlkörper hin abnehmender Weite.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20107247U DE20107247U1 (de) | 2001-04-26 | 2001-04-26 | Leuchte mit Explosions-Schutz |
DE20107247U | 2001-04-26 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1253375A2 true EP1253375A2 (de) | 2002-10-30 |
EP1253375A3 EP1253375A3 (de) | 2005-05-04 |
EP1253375B1 EP1253375B1 (de) | 2006-08-30 |
Family
ID=7956263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20020004722 Expired - Fee Related EP1253375B1 (de) | 2001-04-26 | 2002-03-01 | Leuchte mit Explosions-Schutz |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1253375B1 (de) |
DE (2) | DE20107247U1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9512993B2 (en) | 2012-12-06 | 2016-12-06 | Eaton Protection Systems Ip Gmbh & Co. Kg | Explosion-proof lamp |
KR20220154988A (ko) * | 2021-05-14 | 2022-11-22 | (주)우신에이펙 | 실린더 타입 방폭등 경사형 고정장치 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101469851B (zh) * | 2007-12-29 | 2010-06-23 | 海洋王照明科技股份有限公司 | 防爆荧光灯 |
DE102010053654B4 (de) * | 2010-12-06 | 2013-03-07 | Bundesrepublik Deutschland, vertreten durch das Bundesministerium für Wirtschaft und Technologie, dieses vertreten durch den Präsidenten der Physikalisch-Technischen Bundesanstalt | Beleuchtungseinrichtung |
WO2016174626A1 (en) * | 2015-04-29 | 2016-11-03 | Iguzzini Illuminazione S.P.A. | Strip-shaped lighting device comprising point light emitting sources, provided with means adapted to control the elongation and torsion movements of said strip |
DE102015108753A1 (de) * | 2015-06-02 | 2016-12-08 | watt24 GmbH | Stallleuchte |
US10655797B2 (en) * | 2015-08-13 | 2020-05-19 | Signify Holding B.V. | Elongated lighting device based on solid state lighting technology |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU516793B2 (en) * | 1977-09-26 | 1981-06-25 | Crouse-Hinds (Australia) Pty Ltd | Enclosure for explosion resisting fluorescent light |
DD228714A3 (de) * | 1982-11-11 | 1985-10-16 | Eow Oberweimar Veb | Explosionsgeschuetzte, druckfest gekapselte leuchtstofflampenleuchte |
GB8708147D0 (en) * | 1987-04-06 | 1987-05-13 | Bicc Plc | Electric lighting fitting |
DE3736618A1 (de) * | 1987-10-29 | 1989-05-11 | Ceag Licht & Strom | Leuchte mit einer transparenten abdeckwanne und einem damit verbundenen leuchtengrundkoerper |
US5291379A (en) * | 1993-04-01 | 1994-03-01 | Jem Dong Lu | Protective lamp-shade |
-
2001
- 2001-04-26 DE DE20107247U patent/DE20107247U1/de not_active Expired - Lifetime
-
2002
- 2002-03-01 EP EP20020004722 patent/EP1253375B1/de not_active Expired - Fee Related
- 2002-03-01 DE DE50207968T patent/DE50207968D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
None |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9512993B2 (en) | 2012-12-06 | 2016-12-06 | Eaton Protection Systems Ip Gmbh & Co. Kg | Explosion-proof lamp |
KR20220154988A (ko) * | 2021-05-14 | 2022-11-22 | (주)우신에이펙 | 실린더 타입 방폭등 경사형 고정장치 |
KR102579775B1 (ko) | 2021-05-14 | 2023-09-21 | (주)우신에이펙 | 실린더 타입 방폭등 경사형 고정장치 |
Also Published As
Publication number | Publication date |
---|---|
DE50207968D1 (de) | 2006-10-12 |
EP1253375A3 (de) | 2005-05-04 |
DE20107247U1 (de) | 2001-08-16 |
EP1253375B1 (de) | 2006-08-30 |
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