EP0677700A1 - Réflecteur accroché pour lampe - Google Patents

Réflecteur accroché pour lampe Download PDF

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Publication number
EP0677700A1
EP0677700A1 EP95105268A EP95105268A EP0677700A1 EP 0677700 A1 EP0677700 A1 EP 0677700A1 EP 95105268 A EP95105268 A EP 95105268A EP 95105268 A EP95105268 A EP 95105268A EP 0677700 A1 EP0677700 A1 EP 0677700A1
Authority
EP
European Patent Office
Prior art keywords
reflector
luminaire
side walls
housing
lamp
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Withdrawn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
EP95105268A
Other languages
German (de)
English (en)
Inventor
Rudolf Profft
Reinhard Panteleit
Josef Bulling
Hans-Peter Conrad
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.)
Reiss Lighting GmbH
Original Assignee
ITT Reiss International GmbH
Reiss International GmbH
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 ITT Reiss International GmbH, Reiss International GmbH filed Critical ITT Reiss International GmbH
Publication of EP0677700A1 publication Critical patent/EP0677700A1/fr
Withdrawn legal-status Critical Current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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor

Definitions

  • the invention relates to a luminaire with a reflector mounted at a distance from the bottom of a luminaire housing, at least one elongate lamp arranged in the luminaire housing, a lamp luminaire spanning the lamp and closing, transparent or translucent.
  • the reflector is connected to the base of the luminaire housing via stud bolts or the like. By means of these studs, the reflector is held at a predetermined distance from the floor and the side walls of the lamp housing. The reflector "floats" in the housing at approximately the same level in which the luminaire trough is connected to the luminaire housing.
  • Luminaires constructed in this way are also used as damp-proof luminaires with appropriate seals.
  • a degree of protection test is carried out in Germany, which can be used to identify the luminaire for use in certain ambient conditions.
  • This type of protection test involves, among other things, quenching a luminaire that has been warmed up for several hours with cold water. When cooling, a negative pressure is created inside the lamp, through which the entire lamp can be deformed in such a way that, for example, the bottom of the lamp housing and the bottom of the lamp trough are retracted and at the same time the longitudinal edges are pressed outwards, causing the lamp to leak.
  • suitable materials with appropriate material thickness must be used for both the luminaire housing and the luminaire tray.
  • the stability of the luminaire essentially depends on the construction of the luminaire housing.
  • the invention is therefore based on the object of providing a luminaire which, with reduced stability of the luminaire housing, has sufficient stability for a moisture-proof luminaire.
  • the reflector is connected to two mutually opposite side walls, in particular longitudinal side walls of the lamp housing.
  • the reflector becomes an integral part of the luminaire housing and can contribute to its stability.
  • This luminaire has the advantage that during the protection type test described above, the side walls of the luminaire housing cannot deflect outwards as described above, or this evasion can be kept within limits. This also prevents the luminaire pan from evading, since it is held by the now more stable luminaire housing with its closures.
  • Luminaires of this type can also better withstand other mechanical pressure forces and, due to the additional load-bearing element, have increased torrential rigidity.
  • the reflector is preferably connected to partial areas which are uniformly distributed over the circumference of the lamp with the side walls of the lamp housing.
  • the distribution of these sub-areas and the share of the connecting sub-areas around the total size of the lamp depends on the materials used, the material thickness and the desired stability.
  • the reflector is hooked into receptacles provided on the side walls, in particular longitudinal side walls, of the lamp housing.
  • receptacles can be molded in one piece directly during the manufacture of the luminaire housing and allow inexpensive installation of the reflector without additional screw or similar connection to the side wall.
  • a reflector with long sides bent in the direction of the lamp housing base can be used particularly advantageously, which engages between stiffening ribs attached to the side walls of the lamp housing.
  • the reflector is fixed to the luminaire housing floor by the spacers already in place, thus holding the bends between the stiffening ribs. Special, additional holding devices for the receptacles configured in this way are not required.
  • the long sides of the reflector are folded at an angle> 90 °.
  • the bevels are thus inclined “inwards” and can better absorb the forces described above, which could lead to a deflection of the side edge.
  • an additional 180 ° bend has proven to be advantageous.
  • This 180 ° bend avoids a sharp edge that has to be guided between the stiffening ribs and can result in jamming or cutting into the plastic.
  • the stiffness of the reflector is increased and centering is simplified.
  • the reflector To further stiffen the reflector, it can be sunk in the longitudinal direction.
  • FIG. 1 shows a section through a lamp 10 according to the invention.
  • the lamp tray, the lamp and other electrical parts of the lamp 10 are not shown to simplify the illustration.
  • the luminaire 10 consists of a luminaire housing 12, which is made, for example, of polycarbonate and has a circumferential standing edge 14 and a groove 16 lying lower than this, into which a sealing tape 18 is inserted.
  • a transparent or translucent lamp pan (not shown) which closes the lamp housing 12 with a circumferential edge is also fixed in the closed state of the lamp by closures, also not shown in this figure.
  • connection to the longitudinal side walls takes place in that the reflector 20 via bevels 28, 28 'between stiffening ribs 30, 32; attached to the side walls of the lamp housing 12; 30 ', 32' engages. This prevents the side walls from escaping to the outside.
  • FIG. 2 shows a detailed sectional illustration of the reflector receptacle.
  • a gap 38 is provided between the stiffening ribs 30 and 32, into which the fold 28 of the reflector 20 can be inserted, the stiffening rib 28 having an insertion bevel 40 to simplify centering and assembly.
  • the bevel 28 of the reflector 20 has an angle of> 90 ° and in addition there is a 180 ° bevel 34.
  • the reflector 20 can be particularly easily in the gap 38, along the insertion slope Introduce 40. This position is held by spacer 22 and locking hook 24 without additional measures. There are no special requirements for the dimensional stability of the stiffening ribs 30, 32, since certain tolerances can be compensated for by the inclination of the bevel 28 inwards and the 180 ° bend.
  • FIG. 3 shows a broken top view of the area of the stiffening ribs. From this Fig. 3 it can be seen that in the region of the connection of the side wall with the reflector 20 two stiffening ribs 32 are formed directly on the inside of the side wall of the lamp housing 12, between which there is an inward stiffening rib 30.
  • This design and position of the stiffening ribs enables particularly simple tools, for example in the case of production as a cast plastic part.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
EP95105268A 1994-04-16 1995-04-07 Réflecteur accroché pour lampe Withdrawn EP0677700A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4413315 1994-04-16
DE19944413315 DE4413315C2 (de) 1994-04-16 1994-04-16 Eingehängter Leuchtenreflektor

Publications (1)

Publication Number Publication Date
EP0677700A1 true EP0677700A1 (fr) 1995-10-18

Family

ID=6515681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95105268A Withdrawn EP0677700A1 (fr) 1994-04-16 1995-04-07 Réflecteur accroché pour lampe

Country Status (2)

Country Link
EP (1) EP0677700A1 (fr)
DE (1) DE4413315C2 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2122414A1 (de) * 1971-05-06 1972-11-16 Mitsch, Herbert, 6520 Worms Leuchten für Leuchtstofflampen mit Kunststoffgehäusen
DE3442527A1 (de) * 1983-11-23 1985-05-30 Bösha GmbH & Co KG, 4780 Lippstadt Langfeldleuchte fuer den einsatz in schlagwetter- und explosionsgeschuetzten bereichen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1965827A1 (de) * 1969-12-19 1971-06-24 Siemens Ag Elektrischer Hochspannungsschalter
DE3600915A1 (de) * 1986-01-15 1987-07-16 Metro Sb Handels Ag Baar Lichtkanaldecke

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2122414A1 (de) * 1971-05-06 1972-11-16 Mitsch, Herbert, 6520 Worms Leuchten für Leuchtstofflampen mit Kunststoffgehäusen
DE3442527A1 (de) * 1983-11-23 1985-05-30 Bösha GmbH & Co KG, 4780 Lippstadt Langfeldleuchte fuer den einsatz in schlagwetter- und explosionsgeschuetzten bereichen

Also Published As

Publication number Publication date
DE4413315A1 (de) 1995-10-19
DE4413315C2 (de) 1998-07-16

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