EP0226894B1 - Housing - Google Patents

Housing Download PDF

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Publication number
EP0226894B1
EP0226894B1 EP86116747A EP86116747A EP0226894B1 EP 0226894 B1 EP0226894 B1 EP 0226894B1 EP 86116747 A EP86116747 A EP 86116747A EP 86116747 A EP86116747 A EP 86116747A EP 0226894 B1 EP0226894 B1 EP 0226894B1
Authority
EP
European Patent Office
Prior art keywords
housing
edge
cover
housing cover
depression
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
Application number
EP86116747A
Other languages
German (de)
French (fr)
Other versions
EP0226894A3 (en
EP0226894A2 (en
Inventor
Reinhard Ing. Neumann
Cornelius Ing. Ploeger
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.)
ABB Ceag Licht und Stromversorgungstechnik GmbH
Original Assignee
ABB Ceag Licht und Stromversorgungstechnik GmbH
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Publication date
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Publication of EP0226894A2 publication Critical patent/EP0226894A2/en
Publication of EP0226894A3 publication Critical patent/EP0226894A3/en
Application granted granted Critical
Publication of EP0226894B1 publication Critical patent/EP0226894B1/en
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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
    • 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
    • F21V17/107—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 using hinge joints
    • 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
    • F21V17/16—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 deformation of parts; Snap action mounting
    • F21V17/164—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 deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • 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

Definitions

  • the invention relates to a housing according to the preamble of claim 1.
  • Luminaire housings for linear fluorescent lamps generally consist of a lower housing part made of high-strength material and an upper housing part made of transparent material or a housing cover made of transparent material. Both housing parts are generally connected to one another in such a way that the housing cover can be removed to replace the fluorescent lamps. This means that hinges, screws and the like must be provided on the housing cover, also referred to as the lamp trough, cover or cover trough, so that a certain tightness, in particular with explosion-protected lamps the lamp housing is reached.
  • the cover of the known luminaire housing is subjected to mechanical tension, with voltage peaks being present at certain points, in particular at the actual fastening points and at the locking points.
  • the housing cover is made of thermoplastic or glass, then it is to be expected that stress cracks will occur, particularly in the areas with the stress peaks, e.g. B. when the luminaire housing is wetted with cleaning agents containing aggressive chemicals etc. Due to the aggressive behavior against thermoplastics and glass, stress corrosion cracking can occur, which must be avoided so that the potentially explosive ambient atmosphere cannot penetrate into the interior of the luminaire housing.
  • a lamp of the type mentioned is known from DE-U 11 76 411.
  • This lamp consists of a lower housing part and a cover made of glass, the latter of which has a circumferential flange edge.
  • the circumferential flange edge is accommodated between two seals which are connected to one another by means of connecting screws with a frame encompassing the cover.
  • the frame is fastened to the lower part of the housing by means of screws, the connecting screws for fixing the cover to the frame being adjusted so that the screw head of the connecting screws is against the Lower part of the housing is applied to avoid overvoltages.
  • the object of the invention is therefore to provide a housing of the type mentioned at the outset in which the risk of stress cracks is reliably avoided or at least certainly greatly reduced.
  • the edge of the housing cover or the cover is inserted into the frame, with changes in the loads along the edge of the housing cover, as are to be feared with incorrect setting of the connecting screws in the lamp according to DE-U 11 76 411 are avoided, but are at least greatly reduced.
  • the only load that could possibly affect the edge of the housing cover could be deformation of the frame be itself, which is hardly to be expected and can be excluded depending on the type of sealing compound filling the recess. With a relatively soft, elastic sealing compound, deformations of the frame are not transmitted to the edge of the housing cover.
  • the edge of the housing cover is provided with the frame and that the individual connecting means, such as. B. the screws, hinges and the like and the frame are connected or molded on this, it is possible to attach the housing cover practically stress-free on the lower housing part.
  • Another particular advantage of the configuration according to the invention is that the housing cover can be made very simple because the individual means which are to be provided for connection to the lower housing part no longer have to be molded onto the cover. In addition to a significant reduction in tool costs, this also means an improvement in the external shape and a simplification in the number of covers required for a series of luminaires.
  • the housing cover can only be selected according to criteria relating to the light output; other criteria are of little importance.
  • an antistatic housing cover because of its simple geometry and the material of the frame.
  • the lower housing part, the seal, the frame and the potting compound or cavity seal, with which the frame and the housing cover are connected to one another or sealed against one another, can be set antistatically with simple measures, ie a surface resistance of 10omme ohms can be obtained.
  • the outer surface of the housing cover can also be because of the missing edges and because of the lack of additional shapes for hinges and a suitable film of charge-dissipating material can be applied in the form of a lattice, so that the areas within the individual lattice meshes that can be charged are small as required. Due to the special external shape, a screen grille can also be easily applied using varnish or a two-component spray process. This is only due to the simple outer shape.
  • the housing cover can consist of any transparent materials, provided that the shrinkage of these materials is taken into account.
  • the luminaire or luminaire housing according to FIG. 1 consists of an elongated, rectangular, pot-like housing lower part 10, the free edge of which has an L-shaped outward extension 11 running around the edge.
  • the extension 11 On the right-hand side (in the drawing), the extension 11 has two brackets 12, into which axes or pins 13 formed on a frame 14 are suspended (see also FIGS. 2 and 4).
  • a holding means in the form of a locking element 15 is fastened on the inside of the lower housing part 10, which - actuated from the outside - can be inserted with locking pins 16 into recesses in the frame 14, not shown, for the purpose of closing.
  • the frame which forms a circumferential ring which is adapted to the edge contour of the lower housing part 10, has a U-shaped strip arrangement 17 on the one ring surface facing the lower housing part 10, into which a circumferential seal 18 is inserted.
  • a recess 19 is provided, into which the free edge of a housing cover, here a cover trough 20, is inserted.
  • the recess or the circumferential groove 19 has on its radially outer inner surface 21 lugs 22, behind which a flange rim 23 which is molded onto the cover trough 20 and runs radially outwards can be snapped. After inserting the flange edge 23 of the cover trough 20 the groove 19 is poured out with casting resin 24 or a similar sealing agent.
  • fluorescent lamps 25 and 26 which are fastened there in a manner known per se.
  • FIG. 2 A schematic representation of the frame 14 can be seen there, according to viewing direction B of FIG. 1.
  • the double-strip arrangement 17 is not shown and accordingly the seal is also designed differently.
  • the seal 18 is embedded in a groove 27 in the extension 11.
  • the cover trough 20 has at its free end radially outwardly projecting locking lugs 28 with which it engages behind projections 29 which correspond to the lugs 22.
  • the cover trough 20 has an area 30 with reduced wall thickness on its inner surface; as a result, the cover trough 20 is elastically more easily deformable in the region of the locking lugs 28.
  • the sealing means 24 let into the recess 19 can also be seen.
  • FIGS. 5 and 6 show other configurations of the fixing of the cover trough 20 to a frame 50.
  • the frame 50 according to FIG. 5 has a circumferential depression 51 which corresponds to the depression 19.
  • a plurality of bores 52 are made through which Plug 53 or bolt 53 are inserted; after inserting the edge of the cover trough 20 into the recess 51 and inserting the plug 53 into the region of the flange-like collar 54 of the cover trough 20, the recess is poured out with casting resin or similar sealing material 55 and the cover trough 20 is fixed to the frame.
  • a fixing strip 56 is inserted behind the projections 57, which correspond to the projections 29 in FIG.
  • the cover pan 20 is properly and properly fixed to the frame 50.
  • the frame 70 which is approximately the same as the frame 14, has a groove 71 which has lugs 72 which are similar to the lugs 19.
  • the free edge of the lamp housing (cover trough) 20 is rounded and, similar to the embodiment according to FIG. 3 or 4, is provided with a detent-shaped housing edge 28.
  • a circumferential seal 73 is inserted into the groove 71, snapping behind the lugs 72, which comprises a cavity 74 and is thus elastically deformable.
  • the lug-shaped housing edge 28 is thus pressed against the lugs 72 by the cavity seal 73/74 and is thus held on the frame without tension. Falling out of the cover trough is achieved by means of holders, not shown in detail, which act on the cover trough without tension.
  • FIG. 8 shows a frame 80 with a groove 81 without lugs corresponding to the lugs 72.
  • a seal 82 is poured in the form of casting resin, in which the edge of the cover trough is poured.
  • This "pouring part” can of course also be a preformed sealing part which is held in the groove.
  • the sealing part can have a lip 83, as shown in FIG. 8, which encompasses the flange edge of the cover trough 20.
  • Figure 9 shows an embodiment similar to Figure 7.
  • the frame 90 has a groove 91 similar to the groove 71 with lugs 92 projecting inwards into the groove at the outer upper end thereof.
  • a seal 93 with a cavity 94 and an L-shaped lip 95 is inserted into the groove behind the lugs 92, the lip 93 engaging over the flange edge of the cover trough and holding the cover trough in place.
  • the cover trough 20 is used in the recess 19, 51, 71, 81, 91 practically completely free of tension and is also held in it free of tension.
  • the cover trough no longer has to be specially designed or used for sealing purposes and thus be loaded or deformed; rather, the frame 14, 50, 70, 80, 90 is provided for this purpose, which can be made of a suitable material and must accordingly have sufficient strength.
  • the individual closure elements such as hinge and possibly screw elements are molded onto this frame, which considerably simplifies the production of the cover trough.

Description

Die Erfindung betrifft ein Gehäuse gemäß dem Oberbegriff des Anspruches 1.The invention relates to a housing according to the preamble of claim 1.

Leuchtengehäuse für Langfeld-Leuchtstofflampen bestehen im allgemeinen aus einem aus hochfestem Material hergestellten Gehäuseunterteil und einem aus transparentem Material hergestellten Gehäuseoberteil bzw. einer aus transparentem Material hergestellten Gehäuseabdeckung. Beide Gehäuseteile werden im allgemeinen so miteinander verbunden, daß die Gehäuseabdeckung zum Austausch der Leuchtstofflampen entfernt werden kann. Das bedeutet, daß an der Gehäuseabdeckung, auch Leuchtenwanne, Abdeckung oder Abdeckwanne genannt, Scharniere, Schrauben und dergleichen vorgesehen sein müssen, damit insbesondere bei explosionsgeschützten Leuchten eine bestimmte Dichtigkeit der Leuchtengehäuse erreicht wird. Die Abdeckung der bekannten Leuchtengehäuse ist einer mechanischen Spannung unterworfen, wobei an bestimmten Stellen, insbesondere an den eigentlichen Befestigungsstellen und an den Verschlußpunkten, Spannungspitzen vorhanden sind.Luminaire housings for linear fluorescent lamps generally consist of a lower housing part made of high-strength material and an upper housing part made of transparent material or a housing cover made of transparent material. Both housing parts are generally connected to one another in such a way that the housing cover can be removed to replace the fluorescent lamps. This means that hinges, screws and the like must be provided on the housing cover, also referred to as the lamp trough, cover or cover trough, so that a certain tightness, in particular with explosion-protected lamps the lamp housing is reached. The cover of the known luminaire housing is subjected to mechanical tension, with voltage peaks being present at certain points, in particular at the actual fastening points and at the locking points.

Wenn die Gehäuseabdeckung aus Thermoplast oder Glas hergestellt ist, dann ist damit zu rechnen, daß insbesondere in den Bereichen mit den Spannungspitzen Spannungsrisse auftreten, z. B. dann, wenn das Leuchtengehäuse mit aggressive Chemikalien enthaltenden Reinigungsmitteln etc. benetzt wird. Aufgrund des aggressiven Verhaltens gegen Thermoplaste und Glas können Spannungsrißkorrosionen auftreten, die schon deshalb vermieden werden müssen, damit die evtl. explosible Umgebungsatmosphäre nicht ins Innere des Leuchtengehäuses eindringen kann.If the housing cover is made of thermoplastic or glass, then it is to be expected that stress cracks will occur, particularly in the areas with the stress peaks, e.g. B. when the luminaire housing is wetted with cleaning agents containing aggressive chemicals etc. Due to the aggressive behavior against thermoplastics and glass, stress corrosion cracking can occur, which must be avoided so that the potentially explosive ambient atmosphere cannot penetrate into the interior of the luminaire housing.

Ähnliche Probleme gibt es nicht nur bei Leuchtengehäusen, sondern auch bei allen denjenigen Gehäusen, bei denen an einem Gehäuseunterteil eine Abdeckung anzubringen ist, bei der eine bestimmte Dichtigkeit, z. B. eine Schwadendichtigkeit, erreicht werden muß.Similar problems exist not only with luminaire housings, but also with all those housings in which a cover is to be attached to a lower housing part, in which a certain tightness, e.g. B. a vapor tightness must be achieved.

Eine Leuchte der eingangs genannten Art ist aus dem DE-U 11 76 411 bekannt geworden. Diese Leuchte besteht aus einem Gehäuseunterteil und einer Abdeckung aus Glas, welch letztere einen umlaufenden Flanschrand aufweist. Der umlaufende Flanschrand ist zwischen zwei Dichtungen aufgenommen, die mittels Verbindungsschrauben miteinander mit einem die Abdeckung umfassenden Rahmen verbunden sind. Der Rahmen wird am Gehäuseunterteil mittels Schrauben befestigt, wobei die Verbindungsschrauben zur Fixierung der Abdeckung am Rahmen so eingestellt werden, daß sich der Schraubenkopf der Verbindungsschrauben gegen das Gehäuseunterteil anlegt, um Überspannungen zu vermeiden. Diese Überspannungen sind aber nicht vollständig zu vermeiden, da eine feste Verbindung zwischen dem Rahmen und dem Rand der Abdeckung erzielt werden muß und darüberhinaus der Rahmen den Rand der Abdeckung gegen das Gehäuseunterteil drückt, wobei die Kraft, mit der dies erfolgt, abhängig ist von der korrekten Justierung der Verbindungsschrauben. Je nach entsprechender Justierung kann der Rand entlang seines Umfanges unterschiedlich belastet sein, so daß Spannungsrißkorrosionen nicht vollständig vermieden werden können.A lamp of the type mentioned is known from DE-U 11 76 411. This lamp consists of a lower housing part and a cover made of glass, the latter of which has a circumferential flange edge. The circumferential flange edge is accommodated between two seals which are connected to one another by means of connecting screws with a frame encompassing the cover. The frame is fastened to the lower part of the housing by means of screws, the connecting screws for fixing the cover to the frame being adjusted so that the screw head of the connecting screws is against the Lower part of the housing is applied to avoid overvoltages. However, these overvoltages cannot be completely avoided, since a firm connection between the frame and the edge of the cover must be achieved and, moreover, the frame presses the edge of the cover against the lower housing part, the force with which this occurs depends on the correct adjustment of the connecting screws. Depending on the corresponding adjustment, the edge can be loaded differently along its circumference, so that stress corrosion cracking cannot be completely avoided.

Aufgabe der Erfindung ist es daher, ein Gehäuse der eingangs genannten Art zu schaffen, bei dem die Gefahr von Spannungsrissen sicher vermieden oder zumindest sicher stark reduziert ist.The object of the invention is therefore to provide a housing of the type mentioned at the outset in which the risk of stress cracks is reliably avoided or at least certainly greatly reduced.

Diese Aufgabe wird erfindungsgemäß gelöst durch die kennzeichnenden Merkmale des Anspruches 1.This object is achieved according to the invention by the characterizing features of claim 1.

Weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung, insbesondere vorteilhafte Verbindungsarten von Abdeckung und Rahmen, sind den Unteransprüchen zu entnehmen.Further advantageous refinements and improvements of the invention, in particular advantageous types of connection of cover and frame, can be found in the subclaims.

Erfindungsgemäß also wird der Rand der Gehäuseabdeckung bzw. der Abdeckung in den Rahmen eingesetzt, wobei Änderungen der Belastungen entlang dem Rand der Gehäuseabdeckung, wie sie bei fehlerhafter Einstellung der Verbindungsschrauben bei der Leuchte nach dem DE-U 11 76 411 zu befürchten sind, mit der erfindungsgemäßen Ausgestaltung vermieden sind, zumindest aber stark reduziert sind. Die einzige Belastung, die evtl. auf den Rand der Gehäuseabeckung einwirken könnte, könnten Verformungen des Rahmens selbst sein, was allerdings kaum zu erwarten ist und je nach Art der die Vertiefung ausfüllenden Dichtmasse auseschlossen werden kann. Bei einer relativ weichen, elastischen Dichtmasse werden Verformungen des Rahmens nicht auf den Rand der Gehäuseabdeckung übertragen.According to the invention, therefore, the edge of the housing cover or the cover is inserted into the frame, with changes in the loads along the edge of the housing cover, as are to be feared with incorrect setting of the connecting screws in the lamp according to DE-U 11 76 411 are avoided, but are at least greatly reduced. The only load that could possibly affect the edge of the housing cover could be deformation of the frame be itself, which is hardly to be expected and can be excluded depending on the type of sealing compound filling the recess. With a relatively soft, elastic sealing compound, deformations of the frame are not transmitted to the edge of the housing cover.

Dadurch, daß der Rand der Gehäuseabdeckung mit dem Rahmen versehen ist und daß die einzelnen Verbindungsmittel, wie z. B. die Schrauben, Scharniere und dergleichen und dem Rahmen verbunden bzw. an diesem angeformt sind, ist es möglich, die Gehäuseabdeckung praktisch spannungsfrei an dem Gehäuseunterteil zu befestigen. Ein weiterer besonderer Vorteil der erfindungsgemäßen Ausgestaltung besteht darin, daß die Gehäuseabdeckung sehr einfach ausgebildet sein kann, weil die einzelnen Mittel, die zur Verbindung mit dem Gehäuseunterteil vorzusehen sind, nicht mehr an der Abdeckung anzuformen sind. Dies bedeutet neben einer erheblichen Verringerung der Werkzeugkosten auch eine Verbesserung der äußeren Form und eine Vereinfachung in der Anzahl der für eine Leuchtenserie erforderlichen Abdeckungen. Die Gehäuseabdeckung kann dabei ausschließlich nach Kriterien betreffend die Leuchtenleistung ausgewählt werden; andere Kriterien sind von geringer Bedeutung. Darüberhinaus ist auch die Herstellung einer antistatischen Gehäuseabdeckung wegen ihrer einfachen Geometrie und des Materials des Rahmens möglich. Das Gehäuseunterteil, die Dichtung, der Rahmen und die Vergußmasse bzw. Hohlraumdichtung, mit der der Rahmen und die Gehäuseabdeckung miteinander verbunden bzw. gegeneinander abgedichtet sind, können mit einfachen Maßnahmen antistatisch eingestellt werden, d. h. einen Oberflächenwiderstand von 10⁹ Ohm erhalten. Auf die Außenfläche der Gehäuseabdeckung kann auch wegen der fehlenden Kanten und wegen Fehlens von zusätzlichen Ausformungen für Scharniere und dergleichen eine geeignete Folie aus Aufladungen ableitendem Material in Form eines Gitters aufgetragen werden, so daß die Flächen innerhalb der einzelnen Gittermaschen, die sich aufladen können, vorschriftsmäßig klein sind. Wegen der speziellen äußeren Form ist auch ein Siebgitter durch Lackauftrag oder ein Zweikomponentenspritz-Verfahren ohne weiteres möglich. Dies liegt einzig nur an der einfachen äußeren Form. Die Gehäuseabdeckung kann dabei aus beliebigem transparenten Materialien bestehen, sofern das Schwundmaß dieser Materialien beachtet wird.Characterized in that the edge of the housing cover is provided with the frame and that the individual connecting means, such as. B. the screws, hinges and the like and the frame are connected or molded on this, it is possible to attach the housing cover practically stress-free on the lower housing part. Another particular advantage of the configuration according to the invention is that the housing cover can be made very simple because the individual means which are to be provided for connection to the lower housing part no longer have to be molded onto the cover. In addition to a significant reduction in tool costs, this also means an improvement in the external shape and a simplification in the number of covers required for a series of luminaires. The housing cover can only be selected according to criteria relating to the light output; other criteria are of little importance. In addition, it is also possible to produce an antistatic housing cover because of its simple geometry and the material of the frame. The lower housing part, the seal, the frame and the potting compound or cavity seal, with which the frame and the housing cover are connected to one another or sealed against one another, can be set antistatically with simple measures, ie a surface resistance of 10 erhalten ohms can be obtained. The outer surface of the housing cover can also be because of the missing edges and because of the lack of additional shapes for hinges and a suitable film of charge-dissipating material can be applied in the form of a lattice, so that the areas within the individual lattice meshes that can be charged are small as required. Due to the special external shape, a screen grille can also be easily applied using varnish or a two-component spray process. This is only due to the simple outer shape. The housing cover can consist of any transparent materials, provided that the shrinkage of these materials is taken into account.

Anhand der Zeichnung, in der einige Ausführungsbeispiele der Erfindung dargestellt sind, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben werden.The invention and further advantageous refinements and improvements of the invention are to be explained and described in more detail with reference to the drawing, in which some exemplary embodiments of the invention are shown.

Es zeigen:

Figur 1
eine erste Ausführungsform der Erfindung,
Figur 2
eine Aufsicht auf einen Rahmen,
Figur 3
eine Schnittansicht entlang der Schnittlinie A-B,
Figur 4
eine Schnittansicht gemäß der Schnittlinie C-D,
Figur 5
eine Schnittansicht durch einen Rahmen gemäß einer zweiten Ausführungsform der Erfindung ähnlich der Figur 3,
Figur 6
eine der Figur 5 ähnliche Schnittansicht einer dritten Ausgestaltung der Erfindung und
Figur 7 bis 9
weitere Ausgestaltungen der Erfindung in Teil-Schnittansichten.
Show it:
Figure 1
a first embodiment of the invention,
Figure 2
supervision of a frame,
Figure 3
2 shows a sectional view along the section line AB,
Figure 4
2 shows a sectional view along the section line CD,
Figure 5
3 shows a sectional view through a frame according to a second embodiment of the invention similar to FIG. 3,
Figure 6
a sectional view similar to Figure 5 of a third embodiment of the invention and
Figure 7 to 9
further refinements of the invention in partial sectional views.

Die Leuchte bzw. das Leuchtengehäuse gemäß Figur 1 besteht aus einem langgestreckt rechteckigen, topfartigen Gehäuseunterteil 10, dessen freier Rand einen L-förmig nach außen gerichteten, am Rand umlaufender Fortsatz 11 aufweist. Auf der (in der Zeichnung) rechten Seite besitzt der Fortsatz 11 zwei Bügel 12, in die an einem Rahmen 14 angeformte Achsen bzw. Zapfen 13 eingehängt sind (siehe auch Figuren 2 bzw. 4). Auf der gegenüberliegenden Längskante ist ein Haltemittel in Form eines Verriegelungselementes 15 auf der Innenseite des Gehäuseunterteils 10 befestigt, das - von außen betätigt - mit Verriegelungszapfen 16 in nicht näher dargestellte Ausnehmungen am Rahmen 14 zwecks Verschließens eingeschoben werden kann. Der Rahmen, der einen umlaufenden, der Randkontur des Gehäuseunterteils 10 angepaßten Ring bildet, besitzt auf der einen, dem Gehäuseunterteil 10 zugewandten Ringfläche eine U-förmige Leistenanordnung 17, in die eine umlaufende Dichtung 18 eingesetzt ist. Auf der entgegengesetzt liegenden Ringfläche des Rahmens 14 ist eine Vertiefung 19 vorgesehen, in die der freie Rand einer Gehäuseabdeckung, hier einer Abdeckwanne 20, eingesetzt ist. Die Vertiefung bzw. die umlaufende Nut 19 besitzt auf ihrer radial äußeren Innenfläche 21 Nasen 22, hinter die ein an der Abdeckwanne 20 angeformter, radial nach außen verlaufender Flanschrand 23 geschnappt werden kann. Nach Einsetzen des Flanschrandes 23 der Abdeckwanne 20 wird die Nut 19 mit Gießharz 24 oder einem ähnlichen Abdichtmittel ausgegossen.The luminaire or luminaire housing according to FIG. 1 consists of an elongated, rectangular, pot-like housing lower part 10, the free edge of which has an L-shaped outward extension 11 running around the edge. On the right-hand side (in the drawing), the extension 11 has two brackets 12, into which axes or pins 13 formed on a frame 14 are suspended (see also FIGS. 2 and 4). On the opposite longitudinal edge, a holding means in the form of a locking element 15 is fastened on the inside of the lower housing part 10, which - actuated from the outside - can be inserted with locking pins 16 into recesses in the frame 14, not shown, for the purpose of closing. The frame, which forms a circumferential ring which is adapted to the edge contour of the lower housing part 10, has a U-shaped strip arrangement 17 on the one ring surface facing the lower housing part 10, into which a circumferential seal 18 is inserted. On the opposite annular surface of the frame 14, a recess 19 is provided, into which the free edge of a housing cover, here a cover trough 20, is inserted. The recess or the circumferential groove 19 has on its radially outer inner surface 21 lugs 22, behind which a flange rim 23 which is molded onto the cover trough 20 and runs radially outwards can be snapped. After inserting the flange edge 23 of the cover trough 20 the groove 19 is poured out with casting resin 24 or a similar sealing agent.

Im Inneren des Leuchtengehäuses befinden sich Leuchtstofflampen 25 und 26, die dort in an sich bekannter Weise befestigt sind.In the interior of the lamp housing there are fluorescent lamps 25 and 26 which are fastened there in a manner known per se.

Es sei nun Bezug genommen auf die Figur 2. Man erkennt dort eine schematische Darstellung des Rahmens 14, gemäß Blickrichtung B der Figur 1. Nicht dargestellt ist die Doppelleistenanordnung 17 und demgemäß ist auch die Dichtung anders ausgebildet. Man erkennt auf der rechten Seite die beiden Zapfen 13, die in den Bügel 12 am Gehäuseunterteil eingehängt werden können bzw. bei der Ausführung nach Figur 4 auch eingehängt dargestellt sind. Die Dichtung 18 ist in eine Nut 27 in dem Fortsatz 11 eingelassen.Reference is now made to FIG. 2. A schematic representation of the frame 14 can be seen there, according to viewing direction B of FIG. 1. The double-strip arrangement 17 is not shown and accordingly the seal is also designed differently. One can see on the right side the two pins 13 which can be hooked into the bracket 12 on the lower housing part or are also shown hooked in the embodiment according to FIG. The seal 18 is embedded in a groove 27 in the extension 11.

Bei der Ausführung nach Figur 3 weist die Abdeckwanne 20 an ihrem freien Ende radial nach außen vorspringende Rastnasen 28 auf, mit denen sie hinter Vorsprünge 29 greift, die den Nasen 22 entsprechen. In dem Bereich der Rastnasen 28 besitzt die Abdeckwanne 20 auf ihrer Innenfläche einen Bereich 30 mit verringerter Wandstärke; dadurch ist die Abdeckwanne 20 im Bereich der Rastnasen 28 elastisch leichter verformbar. Man erkennt darüberhinaus auch das in die Vertiefung 19 eingelassene Abdichtmittel 24.In the embodiment according to FIG. 3, the cover trough 20 has at its free end radially outwardly projecting locking lugs 28 with which it engages behind projections 29 which correspond to the lugs 22. In the area of the locking lugs 28, the cover trough 20 has an area 30 with reduced wall thickness on its inner surface; as a result, the cover trough 20 is elastically more easily deformable in the region of the locking lugs 28. The sealing means 24 let into the recess 19 can also be seen.

Die Figuren 5 und 6 zeigen andere Ausgestaltungen der Festlegung der Abdeckwanne 20 an einem Rahmen 50. Der Rahmen 50 gemäß Figur 5 besitzt eine umlaufende Vertiefung 51, die der Vertiefung 19 entspricht. In dem Rahmen 50 sind mehrere Bohrungen 52 eingebracht, durch die hindurch Stopfen 53 bzw. Bolzen 53 eingefügt werden; nach Einfügen des Randes der Abdeckwanne 20 in die Vertiefung 51 und Einfügen der Stopfen 53 in den Bereich des flanschartigen Kragens 54 der Abdeckwanne 20 wird die Vertiefung mit Gießharz oder ähnlichem Dichtungsmaterial 55 ausgegossen und die Abdeckwanne 20 ist am Rahmen fixiert.FIGS. 5 and 6 show other configurations of the fixing of the cover trough 20 to a frame 50. The frame 50 according to FIG. 5 has a circumferential depression 51 which corresponds to the depression 19. In the frame 50, a plurality of bores 52 are made through which Plug 53 or bolt 53 are inserted; after inserting the edge of the cover trough 20 into the recess 51 and inserting the plug 53 into the region of the flange-like collar 54 of the cover trough 20, the recess is poured out with casting resin or similar sealing material 55 and the cover trough 20 is fixed to the frame.

Bei der der Ausführung nach Figur 6 wird anstatt eines Stopfens 53 eine Fixierungsleiste 56 hinter die Vorsprünge 57, die den Vorsprüngen 29 der Figur 3 entsprechen, eingelegt und danach wird ebenfalls wieder die Vertiefung mit Gießharz 58 oder einem ähnlichen Material ausgegossen. Auch hier wird eine einwandfreie und gute Fixierung der Abdeckwanne 20 am Rahmen 50 bewirkt.In the embodiment according to FIG. 6, instead of a plug 53, a fixing strip 56 is inserted behind the projections 57, which correspond to the projections 29 in FIG. Here too, the cover pan 20 is properly and properly fixed to the frame 50.

Bei der Ausgestaltung gemäß Figur 7 besitzt der Rahmen 70, der dem Rahmen 14 in etwa gleicht, eine Nut 71, die den Nasen 19 gleichende Nasen 72 aufweist. Der freie Rand des Leuchtengehäuses (Abdeckwanne) 20 ist abgerundet und ähnlich der Ausführung gemäß Figur 3 oder 4 mit einem rastnasenförmigen Gehäuserand 28 versehen.In the embodiment according to FIG. 7, the frame 70, which is approximately the same as the frame 14, has a groove 71 which has lugs 72 which are similar to the lugs 19. The free edge of the lamp housing (cover trough) 20 is rounded and, similar to the embodiment according to FIG. 3 or 4, is provided with a detent-shaped housing edge 28.

In die Nut 71, hinter die Nasen 72 einrastend, ist eine umlaufende Dichtung 73 eingesetzt, die einen Hohlraum 74 umfaßt und damit elastisch verformbar ist. Damit wird der rastnasenförmige Gehäuserand 28 von der Hohlraumdichtung 73/74 gegen die Nasen 72 gedrückt und am Rahmen so spannungsfrei festgehalten. Ein Herausfallen der Abdeckwanne wird durch nicht näher dargestellte mechanische, spannungsfrei auf die Abdeckwanne wirkende Halterungen erreicht.A circumferential seal 73 is inserted into the groove 71, snapping behind the lugs 72, which comprises a cavity 74 and is thus elastically deformable. The lug-shaped housing edge 28 is thus pressed against the lugs 72 by the cavity seal 73/74 and is thus held on the frame without tension. Falling out of the cover trough is achieved by means of holders, not shown in detail, which act on the cover trough without tension.

Die Figur 8 zeigt einen Rahmen 80 mit Nut 81 ohne den Nasen 72 entsprechende Nasen. In die Nut 81 ist eine Dichtung 82 in Form von Gießharz eingegossen, in die der Rand der Abdeckwanne eingegossen ist. Dieses "Eingießteil" kann natürlich auch ein vorgeformtes Dichtungsteil sein, das in der Nut festgehalten ist. Das Dichtungsteil kann eine Lippe 83 aufweisen, wie in der Figur 8 dargestellt ist, welche den Flanschrand der Abdeckwanne 20 umfaßt.FIG. 8 shows a frame 80 with a groove 81 without lugs corresponding to the lugs 72. In the groove 81, a seal 82 is poured in the form of casting resin, in which the edge of the cover trough is poured. This "pouring part" can of course also be a preformed sealing part which is held in the groove. The sealing part can have a lip 83, as shown in FIG. 8, which encompasses the flange edge of the cover trough 20.

Figur 9 zeigt eine der Figur 7 ähnliche Ausgestaltung. Der Rahmen 90 besitzt eine Nut 91 ähnlich der Nut 71 mit nach innen in die Nut hineinragenden Nasen 92 an deren äußeren oberen Ende. In die Nut hinter den Nasen 92 ist eine Dichtung 93 mit einem Hohlraum 94 und einer L-förmigen Lippe 95 eingesetzt, wobei die Lippe 93 den Flanschrand der Abdeckwanne übergreift und die Abdeckwanne festhält.Figure 9 shows an embodiment similar to Figure 7. The frame 90 has a groove 91 similar to the groove 71 with lugs 92 projecting inwards into the groove at the outer upper end thereof. A seal 93 with a cavity 94 and an L-shaped lip 95 is inserted into the groove behind the lugs 92, the lip 93 engaging over the flange edge of the cover trough and holding the cover trough in place.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß die Abdeckwanne 20 in der Vertiefung 19, 51, 71, 81, 91 praktisch völlig spannungsfrei eingesetzt und darin auch spannungsfrei gehaltert ist. Damit muß die Abdeckwanne nicht mehr für Dichtungszwecke speziell ausgebildet bzw. mitbenutzt und damit belastet oder verformt werden; vielmehr ist hierfür der Rahmen 14, 50, 70, 80, 90 vorgesehen, der aus geeignetem Material hergestellt werden kann und demgemäß eine ausreichende Festigkeit aufweisen muß. An diesem Rahmen sind die einzelnen Verschlußelemente wie Scharnier und ggf. Schraubenelemente angeformt, wodurch die Herstellung der Abdeckwanne erheblich vereinfacht ist.The advantages achieved by the invention are, in particular, that the cover trough 20 is used in the recess 19, 51, 71, 81, 91 practically completely free of tension and is also held in it free of tension. This means that the cover trough no longer has to be specially designed or used for sealing purposes and thus be loaded or deformed; rather, the frame 14, 50, 70, 80, 90 is provided for this purpose, which can be made of a suitable material and must accordingly have sufficient strength. The individual closure elements such as hinge and possibly screw elements are molded onto this frame, which considerably simplifies the production of the cover trough.

Claims (10)

  1. Housing having a lower housing part (10) and a housing cover (20) which can be connected thereto with connecting means (12, 13), for example screws, clamps, hinges and the like, having a frame (14, 50, 70, 80, 90) which is mounted on the circumferential edge of the housing cover (20) and to which the connecting means are attached or can be attached, and via which the housing cover (20) can be connected to the lower housing part (10) in a manner which is free or virtually free of stress, characterised in that the frame (14, 50, 70, 80, 90) has a circumferential depression (19, 51, 71, 81, 91) into which the edge of the housing cover (20) can be inserted and fixed there in a manner which is free of stress or virtually free of stress.
  2. Housing according to Claim 1, characterised in that the depression (19, 71, 91) has projections (29, 72, 92) joined on as locking noses and the housing cover (20) has a circumferential flange edge (23, 28), which projections and which flange edge engage one behind the other in a hook-like manner in the mounted state.
  3. Housing according to Claim 3, characterised in that fixing strips (56) are additionally inserted between the locking noses (29) and the flange edge (23, 28).
  4. Housing according to Claim 1, characterised in that bores (52) are laterally made in the side wall of the depression (51), through which bores in each case a pin (53) is inserted and can be fixed therein, which pin engages behind the collar (54) of the housing cover.
  5. Housing according to one of the preceding claims, characterised in that the housing cover (20) has a reduced wall thickness (30) in the area of the points at which the noses (29), the pins (53) or the insertion strips (56) are provided, so that the housing cover (20) is easily deformable in this area.
  6. Housing according to one of the preceding claims, characterised in that a sealing compound is filled into the depression (19, 51, 71, 81, 91) after insertion of the edge of the housing cover (20).
  7. Housing according to one of Claims 2 to 5, characterised in that a deformable elastic seal (73, 93), which presses the edge of the housing cover (20) against the locking noses (72, 92), is inserted into the depression (71, 91).
  8. Housing according to Claim 7, characterised in that the seal (73, 93) is a cavity seal.
  9. Housing according to Claim 7 or 8, characterised in that the seal (93) has a lip (91) which additionally engages over the edge of the housing cover (20).
  10. Housing according to Claim 1, characterised in that a seal in the form of casting resin or a preformed sealing component (82) with a sealing lip (83) is placed in the depression (81), and in which sealing lip or sealing component the edge of the housing cover (20) is secured in the depression (81).
EP86116747A 1985-12-23 1986-12-02 Housing Expired - Lifetime EP0226894B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853545929 DE3545929A1 (en) 1985-12-23 1985-12-23 CASING
DE3545929 1985-12-23

Publications (3)

Publication Number Publication Date
EP0226894A2 EP0226894A2 (en) 1987-07-01
EP0226894A3 EP0226894A3 (en) 1989-04-12
EP0226894B1 true EP0226894B1 (en) 1992-05-13

Family

ID=6289470

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116747A Expired - Lifetime EP0226894B1 (en) 1985-12-23 1986-12-02 Housing

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EP (1) EP0226894B1 (en)
DE (2) DE3545929A1 (en)
NO (1) NO169456C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3909890A1 (en) * 1989-03-25 1990-09-27 Ceag Licht & Strom DEVICE FOR LOCKING A LIGHT-TRANSPARENT TUB WITH A HOUSING A LONG-FIELD LAMP
DE4413314C2 (en) * 1994-04-16 1998-07-16 Reiss Int Gmbh lamp
DE4413313C2 (en) * 1994-04-16 1998-07-16 Reiss Int Gmbh lamp
US8697753B1 (en) 2013-02-07 2014-04-15 Polichem Sa Method of treating onychomycosis

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1889720A (en) * 1931-12-16 1932-11-29 Cincinnati Advertising Product Holding means for glass globes
DE1705330U (en) * 1954-04-09 1955-08-25 Wilhelm Lenze K G GLASS TUB EDGING, PRIORLY FOR GLASS TUBES TO BE ATTACHED TO FLUOROUS LAMPS - LUMINAIRES.
DE1801284U (en) * 1959-10-16 1959-12-03 Ernst Rademacher G M B H PLASTIC HOUSING FOR LUMINOUS TUBES.
CH391100A (en) * 1960-04-28 1965-04-30 Schneider & Co Dr Ing Device for holding an elastic and translucent cover on a recessed or surface-mounted ceiling light
US3328578A (en) * 1965-06-04 1967-06-27 Gen Electric Trough-shaped luminaire with housing
FR1543993A (en) * 1967-07-07 1968-10-31 Ouvrard Washbasin provided with improved means for its attachment to a support plate
US3506153A (en) * 1968-08-26 1970-04-14 Reynolds Metals Co Hinge construction and lighting fixture using same
DE6904031U (en) * 1969-01-28 1969-10-23 Fabrikant Hans Wessel DENSE INTERIOR AND OUTDOOR LIGHT
DD204985A1 (en) * 1982-04-02 1983-12-14 Werner Grosse EMBEDDING OF PROTECTION GLASSES FOR EXPLOSION-PROOF LAMPS
DE3214719A1 (en) * 1982-04-21 1983-10-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Exterior lighting fitting having a closed housing
DE3412312A1 (en) * 1984-04-03 1985-10-03 Ceag Licht- Und Stromversorgungstechnik Gmbh, 4770 Soest Seal

Also Published As

Publication number Publication date
EP0226894A3 (en) 1989-04-12
EP0226894A2 (en) 1987-07-01
DE3545929A1 (en) 1987-06-25
NO169456B (en) 1992-03-16
DE3685312D1 (en) 1992-06-17
NO865234D0 (en) 1986-12-22
NO865234L (en) 1987-06-24
NO169456C (en) 1992-06-24

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