EP2241802A1 - Lampe pour locaux humides - Google Patents

Lampe pour locaux humides Download PDF

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Publication number
EP2241802A1
EP2241802A1 EP10159856A EP10159856A EP2241802A1 EP 2241802 A1 EP2241802 A1 EP 2241802A1 EP 10159856 A EP10159856 A EP 10159856A EP 10159856 A EP10159856 A EP 10159856A EP 2241802 A1 EP2241802 A1 EP 2241802A1
Authority
EP
European Patent Office
Prior art keywords
housing
polyamide
trough
damp
glass fibers
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Withdrawn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
EP10159856A
Other languages
German (de)
English (en)
Inventor
Bernhard Nenning
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.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
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 Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2241802A1 publication Critical patent/EP2241802A1/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Withdrawn legal-status Critical Current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
    • 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
    • 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 present invention relates to a wet room lamp according to the preamble of claim 1.
  • a wet room luminaire is usually formed with a two-part luminaire overall housing, wherein the one part is a trough-shaped housing, the fastening elements for attaching the lamp to a support, for. Ex. Has a wall or a ceiling.
  • the other part of the overall housing is formed by an at least partially transparent cover, which is releasably connected by closure elements with the trough-shaped housing.
  • the radiated during operation light is emitted through the transparent cover for room lighting.
  • a lamp of this kind is, for example, from the DE 10 2005 058 935 A1 the applicant known.
  • a damp-proof luminaire is used in particular in rooms or areas in which a relatively high air humidity is present. Since, in particular, the electronic components of the luminaire are to be protected from excessively high atmospheric humidity, damp-proof luminaires generally have a seal between the trough-shaped housing and the transparent cover, so that the interior is sealed off from the surroundings of the luminaire. Furthermore, materials should preferably be used for the luminaire housing, which have positive characteristics in view of the prevailing conditions at the site. So far, therefore, the trough-shaped housing of damp-proof lights, for example, were made of polyester. The cover was usually made of polycarbonate.
  • the present invention is based on the object of specifying a novel moisture-proof luminaire, which has further improved properties compared to previously known solutions.
  • the solution according to the invention is based on the idea of now forming the trough-shaped housing of the moisture-proof polyamide. This has particularly positive properties, since it on the one hand has a very good chemical resistance and on the other hand combines good mechanical and thermal properties in itself.
  • a damp-proof luminaire with a trough-shaped housing and a transparent cover covering the opening of the housing is accordingly proposed, wherein the housing is formed at least partially from polyamide.
  • a method for producing a trough-shaped housing for a wet room lamp is proposed, wherein the housing is produced by injection molding of a plastic material and according to the invention is in the material is polyamide.
  • polyamide face the problem that this material absorbs relatively much water and also has a relatively high so-called processing shrinkage. This leads to the production of the luminaire housing made of pure polyamide associated with certain problems.
  • the polyamide material is provided with additional additives which positively influence the properties of the material.
  • additives may, for example, be glass fibers, wherein the weight fraction of the glass fibers is preferably in the range of 5% to 20%, preferably about 15%.
  • glass beads can also be admixed as additives, the weight fraction of the glass beads preferably being 20% +/- 3%. It has been found that in this mixture, the polyamide is excellently workable and in particular, this material is suitable to produce by means of existing tools damp-proof lighting base baths by injection molding. With the aid of the solution according to the invention, not only damp-proof lighting base baths with improved material properties can accordingly be created. At the same time it is also ensured that the production can be carried out in the known and therefore inexpensive manner.
  • FIG. 1 shows here a moisture lamp in perspective view.
  • the main components of in Fig. 1 illustrated and generally designated by the reference numeral 1 wet room light are a trough-shaped housing 2, a so arranged by a plurality of distributed circumferentially arranged closure devices 3 releasably connected cover 4 and at least one arranged in the cavity between the trough-shaped housing 2 and the cover 4 - not illustrated - lamp which is connected and held at least one mechanical and electrical connection element.
  • fastening elements 5 are arranged, with the aid of which the lamp 1 can be attached to a support element, for example.
  • the cover 4 is at least partially translucent and is usually made of polycarbonate. Depending on the preferred radiation of the light emitted by the light source, the polycarbonate material may include light-scattering particles and / or be provided in certain areas with a structure over which a directed light output is achieved.
  • the trough-shaped housing 2 is now according to the invention at least partially made of polyamide (PA).
  • PA polyamide
  • polyamide has distinctly improved chemical resistance properties as well as mechanical and thermal properties.
  • the possible uses of the moisture-proof luminaire according to the invention can accordingly be extended, since, owing to the improved properties, applications would now also be conceivable which up to now have not been possible with the use of polyester luminaire housings.
  • Polyamides are polymers whose repeating units possess the amide group as a characteristic feature. This can be understood as a condensation product of a carboxylic acid and an amine. The resulting peptide bond can be cleaved hydrolytically again.
  • This property causes polyamide to absorb a relatively large amount of water.
  • the material has a relatively large so-called processing shrinkage
  • the present invention preferably added to the polyamide material additives, by means of which the above-mentioned problems can be avoided.
  • additives are, in particular, glass fibers and / or glass spheres.
  • the material includes glass fibers, wherein the weight fraction of these glass fibers in the range of 5% to 20%, preferably about 15%.
  • the material may also be mixed with glass beads, wherein preferably the weight fraction of the glass beads is 20% +/- 3%.
  • the polyamide material is significantly easier to process and, in particular, it is possible to produce the lighting pan by injection molding.
  • the processability of the material has been improved by the addition of the additives even to the extent that the previously used tools can be used to create basements for wet room lighting. This is particularly advantageous in terms of manufacturing costs, since the use of new tools for producing the lamp housing is not required.
  • the material presented above could also be used in other types of luminaires.
  • the positive properties of the polyamide are particularly significant. Therefore, with the present invention, high quality casing base trays can be easily and inexpensively manufactured.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
EP10159856A 2009-04-14 2010-04-14 Lampe pour locaux humides Withdrawn EP2241802A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009017405A DE102009017405A1 (de) 2009-04-14 2009-04-14 Feuchtraumleuchte

Publications (1)

Publication Number Publication Date
EP2241802A1 true EP2241802A1 (fr) 2010-10-20

Family

ID=42371476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10159856A Withdrawn EP2241802A1 (fr) 2009-04-14 2010-04-14 Lampe pour locaux humides

Country Status (2)

Country Link
EP (1) EP2241802A1 (fr)
DE (1) DE102009017405A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011051252U1 (de) * 2011-09-09 2012-12-10 Zumtobel Lighting Gmbh Feuchtraumleuchte mit vereinfachter elektrischer Verbindungsmöglichkeit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4779174A (en) * 1986-05-08 1988-10-18 Staten Carlton F Submersible lighting device
US4849474A (en) * 1986-01-06 1989-07-18 General Electric Company Moisture reduction in polyamide compositions
EP1762432A2 (fr) * 2005-09-12 2007-03-14 KOMPLED GmbH & Co. KG Feu arrière
DE102005058935A1 (de) 2005-12-09 2007-06-14 Zumtobel Lighting Gmbh Feuchtraumleuchte mit wenigstens einem zwischen einem wannenförmigen Gehäuse und einer Abdeckung wirksamen Sperrsteg
EP1821030A1 (fr) * 2006-02-15 2007-08-22 IDEALED S.r.l. Unipersonale Unité d'éclairage a DEL

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1029928B (de) * 1957-05-09 1958-05-14 Guenther Spelsberg K G Feuchtraumleuchte
BE1006977A3 (nl) * 1993-04-01 1995-02-07 Philips Electronics Nv Verlichtingsarmatuur voor inbouw in een vals plafond.
US6450675B1 (en) * 1999-01-21 2002-09-17 Kaneka Corp. Vehicle lamp composition and method of manufacturing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4849474A (en) * 1986-01-06 1989-07-18 General Electric Company Moisture reduction in polyamide compositions
US4779174A (en) * 1986-05-08 1988-10-18 Staten Carlton F Submersible lighting device
EP1762432A2 (fr) * 2005-09-12 2007-03-14 KOMPLED GmbH & Co. KG Feu arrière
DE102005058935A1 (de) 2005-12-09 2007-06-14 Zumtobel Lighting Gmbh Feuchtraumleuchte mit wenigstens einem zwischen einem wannenförmigen Gehäuse und einer Abdeckung wirksamen Sperrsteg
EP1821030A1 (fr) * 2006-02-15 2007-08-22 IDEALED S.r.l. Unipersonale Unité d'éclairage a DEL

Also Published As

Publication number Publication date
DE102009017405A1 (de) 2010-10-21

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