EP0234335A2 - Light fitting - Google Patents

Light fitting Download PDF

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Publication number
EP0234335A2
EP0234335A2 EP87101339A EP87101339A EP0234335A2 EP 0234335 A2 EP0234335 A2 EP 0234335A2 EP 87101339 A EP87101339 A EP 87101339A EP 87101339 A EP87101339 A EP 87101339A EP 0234335 A2 EP0234335 A2 EP 0234335A2
Authority
EP
European Patent Office
Prior art keywords
labyrinth
housing
dust
pressure compensation
compensation device
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Withdrawn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
EP87101339A
Other languages
German (de)
French (fr)
Other versions
EP0234335A3 (en
Inventor
George Strangmann
Rainer Bolsewig
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.)
Norka Norddeutsche Kunststoff und Elektrogesellschaft Staecker mbH and Co KG
Original Assignee
Norka Norddeutsche Kunststoff und Elektrogesellschaft Staecker mbH 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 Norka Norddeutsche Kunststoff und Elektrogesellschaft Staecker mbH and Co KG filed Critical Norka Norddeutsche Kunststoff und Elektrogesellschaft Staecker mbH and Co KG
Publication of EP0234335A2 publication Critical patent/EP0234335A2/en
Publication of EP0234335A3 publication Critical patent/EP0234335A3/en
Withdrawn legal-status Critical Current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
    • F21V31/03—Gas-tight or water-tight arrangements with provision for venting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/30—Ventilation or drainage of lighting devices
    • F21S45/33—Ventilation or drainage of lighting devices specially adapted for headlamps

Definitions

  • the invention relates to a lamp according to the preamble of patent claim 1.
  • Such protected lights are known in a wide variety of configurations.
  • the requirements for the degree of protection can vary. There are lights that must be protected against dust and splash water. If the requirements are higher, protection against splash water is no longer sufficient, but the lights must be water-tight.
  • the housing must be more or less tight. If the lamp and thus the housing are heated by the lamp, the pressure rises. If it suddenly cools down, for example due to rainwater, there is an equally sudden decrease in pressure, which can lead to water and dust getting into the interior of the lamp. In the event of a very sudden cooling, the lamp cover glass may even implode. A pressure equalization through a simple hole is not possible with the corresponding requirements for the protection class.
  • the invention is therefore based on the object to provide a luminaire of the type mentioned, which in any case meets the requirements for the corresponding protection type and is in particular protected against the ingress of moisture and dust, without the risk of damage or destruction by there is an implosion.
  • the pressure compensation device is advantageously designed as specified in claims 2 to 5.
  • the arrangement and design of the individual rooms forming the labyrinth and the corresponding connection openings are carried out in such a way that the task of pressure equalization is reliably fulfilled, but that possibly with sucked-in water emerges again from the labyrinth before it reaches the interior of the lamp.
  • a dust filter can be arranged in the area of the transition from the pressure compensation device into the housing in order to prevent even fine dust particles from penetrating into the interior.
  • the pressure compensation device can be designed in a wide variety of ways.
  • the pressure compensation device consists of a main part 1 and a cover 2 fastened thereon.
  • main part 1 two annular spaces 3 and 4 are formed which surround a central space 5.
  • the middle space 5 in turn leads into an opening 6, which establishes the direct connection with the interior of the lamp.
  • the main part 1 is screwed into the indicated housing 12 via a thread 7.
  • a thread 7 Of course, other types of fastening are also conceivable.
  • the annular space 3 is connected to the surroundings via openings 8.
  • the annular spaces 3 and 4 are connected to one another by openings 9.
  • Openings 10 lead from the annular space 4 into the central space 5.
  • the individual openings 8, 9 and 10 are offset from one another.
  • the openings are further arranged and designed so that any water drawn in can emerge from other openings under the influence of gravity.
  • the openings are dimensioned so that the water does not get caught by adhesive forces.
  • the pressure compensation device shown is screwed into a housing, it ensures pressure compensation in both directions.
  • the water sucked in, for example, through an opening 8 can exit again through an opening 8 below.
  • a dust filter 11 sits directly in front of the opening 6 and thus reliably prevents even the smallest dust particles from entering.
  • the two-part design is practically eliminated, since the outer wall of the housing forms the corresponding end wall of the pressure compensation device.
  • the cover can have the different passages of the labyrinth, so that only a simple part for connection to the housing is then attached to this "labyrinth part".

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)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The light fitting, which is a light fitting protected against the penetration of dust and moisture, is provided with a pressure compensating device with labyrinth attached to the housing. This pressure compensating device provides for a pressure equalisation in both directions so that the pressure cannot suddenly rise or drop. The labyrinth prevents a penetration of dust and moisture and a dust filter can be additionally provided for fine dust. <IMAGE>

Description

Die Erfindung betrifft eine Leuchte nach dem Oberbegriff des Patentanspruches 1.The invention relates to a lamp according to the preamble of patent claim 1.

Derartige geschützte Leuchten sind in den unterschiedlichsten Ausgestaltungen bekannt. Die Anforderungen an die Schutzart können verschieden hoch sein. Es gibt Leuchten, die gegen Staub und Spritzwasser geschützt sein müssen. Bei höheren Anforderungen genügt der Schutz gegen Spritzwasser nicht mehr, sondern die Leuchten müssen strahlwasserdicht sein. Je nach Art der Anforderungen muß das Gehäuse mehr oder weniger dicht sein. Wenn die Leuchte und damit auch das Gehäuse durch die Lampe erwärmt werden, erfolgt ein Druckanstieg. Bei plötzlichem Abkühlen, beispielsweise durch Regenwasser, erfolgt ein ebenso plötzlicher Druckabbau, der dazu führen kann, daß Wasser und Staub in den Innenraum der Leuchte gelangen. Es kann bei sehr plötzlicher Abkühlung sogar zu einer Implosion des Leuchtenabschlußglases kommen. Ein Druckausgleich durch ein einfaches Loch ist bei entsprechenden Anforderungen an die Schutzart nicht möglich. Der Erfindung liegt daher die Aufgabe zugrunde, eine Leuchte der eingangs genannten Art zu schaffen, die auf jeden Fall die Anforderungen an die entsprechende Schutzart erfüllt und insbesondere gegen Eindringen von Feuchtigkeit und Staub sicher geschützt ist, ohne daß dabei die Gefahr einer Beschädigung oder Zerstörung durch eine Implosion besteht.Such protected lights are known in a wide variety of configurations. The requirements for the degree of protection can vary. There are lights that must be protected against dust and splash water. If the requirements are higher, protection against splash water is no longer sufficient, but the lights must be water-tight. Depending on the type of requirements, the housing must be more or less tight. If the lamp and thus the housing are heated by the lamp, the pressure rises. If it suddenly cools down, for example due to rainwater, there is an equally sudden decrease in pressure, which can lead to water and dust getting into the interior of the lamp. In the event of a very sudden cooling, the lamp cover glass may even implode. A pressure equalization through a simple hole is not possible with the corresponding requirements for the protection class. The invention is therefore based on the object to provide a luminaire of the type mentioned, which in any case meets the requirements for the corresponding protection type and is in particular protected against the ingress of moisture and dust, without the risk of damage or destruction by there is an implosion.

Diese Aufgabe wird grundsätzlich durch das Kennzeichen des Anspruches 1 gelöst.This object is basically achieved by the characterizing part of claim 1.

Dadurch, daß eine gesonderte Druckausgleichseinrichtung mit einem Labyrinth vorgesehen ist, ist jederzeit ein freier und ungehinderter Druckausgleich möglich. Das Labyrinth verhindert, daß die Feuchtigkeit und der Staub bis in das Gehäuse, d.h. bis in den Innenraum, der Lampe eindringen. Hierbei ist die Druckausgleichseinrichtung in vorteilhafter Weise so ausgestaltet, wie in den Ansprüchen 2 bis 5 angegeben. Die Anordnung und Ausbildung der einzelnen, das Labyrinth bildenden Räume und der entsprechenden Verbindungsöffnungen erfolgt so, daß die Aufgabe des Druckausgleichs sicher erfüllt wird, daß aber evtl. mit angesaugtes Wasser wieder aus dem Labyrinth austritt, bevor es in den Innenraum der Leuchte gelangt. Im Bereich des Übergangs von der Druckausgleichseinrichtung in das Gehäuse kann ein Staubfilter angeordnet sein, um auch feine Staubteile am Eindringen in den Innenraum zu hindern.Because a separate pressure compensation device with a labyrinth is provided, free and unimpeded pressure compensation is possible at any time. The labyrinth prevents moisture and dust from reaching the housing, i.e. penetrate into the interior of the lamp. Here, the pressure compensation device is advantageously designed as specified in claims 2 to 5. The arrangement and design of the individual rooms forming the labyrinth and the corresponding connection openings are carried out in such a way that the task of pressure equalization is reliably fulfilled, but that possibly with sucked-in water emerges again from the labyrinth before it reaches the interior of the lamp. A dust filter can be arranged in the area of the transition from the pressure compensation device into the housing in order to prevent even fine dust particles from penetrating into the interior.

Die Druckausgleichseinrichtung kann in der unterschiedlichsten Weise ausgestaltet sein.The pressure compensation device can be designed in a wide variety of ways.

Im folgenden wird die Erfindung unter Hinweis auf die Zeichnung anhand eines Ausführungsbeispieles näher erläutert.The invention is explained in more detail below with reference to the drawing using an exemplary embodiment.

Es zeigt:

  • Fig. 1 einen Längsschnitt durch eine Ausführungsform einer Druckausgleichseinrichtung mit Labyrinth; und
  • Fig. 2 einen Querschnitt gemäß der Linie II-II.
It shows:
  • 1 shows a longitudinal section through an embodiment of a pressure compensation device with a labyrinth. and
  • Fig. 2 shows a cross section along the line II-II.

In der Zeichnung ist lediglich die Druckausgleichseinrichtung dargestellt. Das Gehäuse der Leuchte ist angedeutet und mit 12 bezeichnet. Auf eine weitere Darstellung des Gehäuses und der Leuchte wurde verzichtet, da die Druckausgleichseinrichtung für die unterschiedlichsten Leuchten verwendet werden kann, für die entsprechende Schutzanforderungen bestehen.In the drawing, only the pressure compensation device is shown. The housing of the lamp is indicated and designated 12. A further illustration of the housing and the luminaire has been omitted, since the pressure compensation device can be used for a wide variety of luminaires for which corresponding protection requirements exist.

Die Druckausgleichseinrichtung besteht aus einem Hauptteil 1 und einem auf diesem befestigten Deckel 2. In dem Hauptteil 1 sind zwei Ringräume 3 und 4 ausgebildet, die einen Mittelraum 5 umgeben. Der Mittelraum 5 führt wiederum in eine Öffnung 6, die die unmittelbare Verbindung mit dem Innenraum der Leuchte herstellt.The pressure compensation device consists of a main part 1 and a cover 2 fastened thereon. In the main part 1, two annular spaces 3 and 4 are formed which surround a central space 5. The middle space 5 in turn leads into an opening 6, which establishes the direct connection with the interior of the lamp.

Das Hauptteil 1 ist über ein Gewinde 7 in das angedeutete Gehäuse 12 eingeschraubt. Selbstverständlich sind auch andere Befestigungsarten denkbar.The main part 1 is screwed into the indicated housing 12 via a thread 7. Of course, other types of fastening are also conceivable.

Der Ringraum 3 ist über Öffnungen 8 mit der Umgebung verbunden. Untereinander sind die Ringräume 3 und 4 durch Öffnungen 9 verbunden. Aus dem Ringraum 4 führen Öffnungen 10 in den Mittelraum 5. Die einzelnen Öffnungen 8,9 und 10 sind gegeneinander versetzt. Die Öffnungen sind weiterhin so angeordnet und ausgebildet, daß evtl. angesaugtes Wasser unter Schwerkrafteinwirkung aus anderen Öffnungen wieder austreten kann. Die Öffnungen sind so dimensioniert, daß das Wasser nicht durch Adhäsionskräfte hängenbleibt.The annular space 3 is connected to the surroundings via openings 8. The annular spaces 3 and 4 are connected to one another by openings 9. Openings 10 lead from the annular space 4 into the central space 5. The individual openings 8, 9 and 10 are offset from one another. The openings are further arranged and designed so that any water drawn in can emerge from other openings under the influence of gravity. The openings are dimensioned so that the water does not get caught by adhesive forces.

Wenn die dargestellte Druckausgleichseinrichtung in ein Gehäuse eingeschraubt ist, sorgt sie für einen Druckausgleich in beiden Richtungen. Das beispielsweise durch eine Öffnung 8 angesaugte Wasser kann durch eine untenliegende Öffnung 8 wieder austreten.If the pressure compensation device shown is screwed into a housing, it ensures pressure compensation in both directions. The water sucked in, for example, through an opening 8 can exit again through an opening 8 below.

Ein Staubfilter 11 sitzt unmittelbar vor der Öffnung 6 und verhindert so sicher auch das Eindringen kleinster Staubpartikelchen.A dust filter 11 sits directly in front of the opening 6 and thus reliably prevents even the smallest dust particles from entering.

Es ist leicht einzusehen, daß die Druckausgleichseinrichtung nicht so gestaltet sein muß, wie es sich aus der Zeichnung ergibt. Es sind auch andere Formen, beispielsweise mit rechteckigem oder quadratischem Querschnitt, denkbar.It is easy to see that the pressure compensation device does not have to be designed as shown in the drawing. Other shapes, for example with a rectangular or square cross section, are also conceivable.

Bei einer anderen Ausführungsform entfällt praktisch die zweiteilige Ausbildung, da die Außenwand des Gehäuses die entsprechende Stirnwand der Druckausgleichseinrichtung bildet. Bei einer noch etwas anderen Ausführungsform kann der Deckel die verschiedenen Gänge des Labyrinths aufweisen, so daß auf diesem "Labyrinthteil" dann nur noch ein einfaches Teil zur Verbindung mit dem Gehäuse befestigt wird.In another embodiment, the two-part design is practically eliminated, since the outer wall of the housing forms the corresponding end wall of the pressure compensation device. In a still somewhat different embodiment, the cover can have the different passages of the labyrinth, so that only a simple part for connection to the housing is then attached to this "labyrinth part".

Claims (5)

1. Leuchte, deren Gehäuse gegen Eindringen von Staub und Feuchtigkeit geschützt ist, dadurch gekennzeichnet, daß das Gehäuse (12) eine Druckausgleichseinrichtung mit einem Labyrinth aufweist.1. Luminaire whose housing is protected against the ingress of dust and moisture, characterized in that the housing (12) has a pressure compensation device with a labyrinth. 2. Leuchte nach Anspruch 1, dadurch gekennzeichnet, daß die Druckausgleichseinrichtung aus einem das Labyrinth aufweisenden Hauptteil (1) und einem auf diesem aufgesetzten Deckel (2) besteht.2. Luminaire according to claim 1, characterized in that the pressure compensation device consists of a main part having the labyrinth (1) and a lid (2) placed thereon. 3. Leuchte nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Labyrinth durch mindestens zwei konzentrisch angeordnete Ringräume (3,4) gebildet ist, die durch gegeneinander versetzte Öffnungen (8,9) mit der Umgebung und untereinander verbunden sind.3. Luminaire according to claim 1 or 2, characterized in that the labyrinth is formed by at least two concentrically arranged annular spaces (3, 4) which are connected to one another by means of openings (8, 9) which are offset with respect to one another. 4. Leuchte nach Anspruch 3, dadurch gekennzeichnet, daß die Ringräume (3,4) einen Mittelraum (5) umgeben, der mit der in das Gehäuse (12) führenden Öffnung (6) verbunden ist.4. Luminaire according to claim 3, characterized in that the annular spaces (3, 4) surround a central space (5) which is connected to the opening (6) leading into the housing (12). 5. Leuchte nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß zwischen Labyrinth und der in das Gehäuse (12) führenden Öffnung (6) ein Staubfilter (11) angeordnet ist.5. Luminaire according to one or more of the preceding claims, characterized in that a dust filter (11) is arranged between the labyrinth and the opening (6) leading into the housing (12).
EP87101339A 1986-02-14 1987-01-31 Light fitting Withdrawn EP0234335A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3604615 1986-02-14
DE19863604615 DE3604615A1 (en) 1986-02-14 1986-02-14 LAMP

Publications (2)

Publication Number Publication Date
EP0234335A2 true EP0234335A2 (en) 1987-09-02
EP0234335A3 EP0234335A3 (en) 1989-04-12

Family

ID=6294061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101339A Withdrawn EP0234335A3 (en) 1986-02-14 1987-01-31 Light fitting

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EP (1) EP0234335A3 (en)
DE (1) DE3604615A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647732A1 (en) * 1989-06-01 1990-12-07 Axo Cie Equip Automobiles Improvements to the signalling lights of motor vehicles
WO1991003681A1 (en) * 1989-09-01 1991-03-21 Walter Kurt Weber Vent nozzle
DE10055152A1 (en) * 2000-11-07 2002-05-08 Hella Kg Hueck & Co Ventilation system of lamp, especially headlamp of vehicle has labyrinth-like ventilation passage standing in active communication with second ventilation arrangement and second ventilation device surrounding ventilation passage.
WO2006031735A2 (en) * 2004-09-13 2006-03-23 Donaldson Company, Inc. Breather filter
DE102012204653A1 (en) * 2012-03-22 2013-09-26 Trilux Gmbh & Co. Kg Luminaire with pressure compensation device
EP3816501A1 (en) * 2019-10-30 2021-05-05 Marelli Automotive Lighting Reutlingen (Germany) GmbH Ventilation module for a lighting device of a motor vehicle
WO2023274814A1 (en) * 2021-06-30 2023-01-05 Marelli Automotive Lighting Reutlingen (Germany) GmbH Ventilation module for a motor vehicle lighting device
EP4447626A1 (en) * 2023-04-14 2024-10-16 W. L. Gore & Associates GmbH Improved vent and vent casing

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9104317U1 (en) * 1991-04-10 1991-10-10 Zumtobel Ag, Dornbirn Collar ring for sealing a fluorescent lamp or a protective tube of a fluorescent lamp luminaire to a socket
DE19522669C2 (en) * 1995-06-22 1999-01-28 Hella Kg Hueck & Co Housing of a light-generating device for motor vehicles
DE102004051385A1 (en) * 2004-10-21 2006-04-27 Zumtobel Staff Gmbh Luminaire housing with pressure compensation device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2183934A1 (en) * 1972-05-08 1973-12-21 Westfaelische Metall Industrie
FR2308047A1 (en) * 1975-04-18 1976-11-12 Bosch Gmbh Robert LIGHTHOUSE, ESPECIALLY FOR MOTOR VEHICLES
DE3319411A1 (en) * 1983-05-28 1985-01-31 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Vehicle headlamp
DE3626726A1 (en) * 1986-08-07 1988-02-11 Hella Kg Hueck & Co HEADLIGHTS FOR VEHICLES, IN PARTICULAR MOTOR VEHICLES

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2183934A1 (en) * 1972-05-08 1973-12-21 Westfaelische Metall Industrie
FR2308047A1 (en) * 1975-04-18 1976-11-12 Bosch Gmbh Robert LIGHTHOUSE, ESPECIALLY FOR MOTOR VEHICLES
DE3319411A1 (en) * 1983-05-28 1985-01-31 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Vehicle headlamp
DE3626726A1 (en) * 1986-08-07 1988-02-11 Hella Kg Hueck & Co HEADLIGHTS FOR VEHICLES, IN PARTICULAR MOTOR VEHICLES

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647732A1 (en) * 1989-06-01 1990-12-07 Axo Cie Equip Automobiles Improvements to the signalling lights of motor vehicles
WO1991003681A1 (en) * 1989-09-01 1991-03-21 Walter Kurt Weber Vent nozzle
DE10055152A1 (en) * 2000-11-07 2002-05-08 Hella Kg Hueck & Co Ventilation system of lamp, especially headlamp of vehicle has labyrinth-like ventilation passage standing in active communication with second ventilation arrangement and second ventilation device surrounding ventilation passage.
DE10055152B4 (en) * 2000-11-07 2009-05-14 Hella Kgaa Hueck & Co. Ventilation system of a lamp, in particular a headlight for vehicles
WO2006031735A2 (en) * 2004-09-13 2006-03-23 Donaldson Company, Inc. Breather filter
WO2006031735A3 (en) * 2004-09-13 2006-04-20 Donaldson Co Inc Breather filter
DE102012204653A1 (en) * 2012-03-22 2013-09-26 Trilux Gmbh & Co. Kg Luminaire with pressure compensation device
EP3816501A1 (en) * 2019-10-30 2021-05-05 Marelli Automotive Lighting Reutlingen (Germany) GmbH Ventilation module for a lighting device of a motor vehicle
WO2023274814A1 (en) * 2021-06-30 2023-01-05 Marelli Automotive Lighting Reutlingen (Germany) GmbH Ventilation module for a motor vehicle lighting device
EP4447626A1 (en) * 2023-04-14 2024-10-16 W. L. Gore & Associates GmbH Improved vent and vent casing

Also Published As

Publication number Publication date
DE3604615A1 (en) 1987-08-20
EP0234335A3 (en) 1989-04-12

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