WO2009092849A1 - Led luminaire - Google Patents

Led luminaire Download PDF

Info

Publication number
WO2009092849A1
WO2009092849A1 PCT/FI2009/050029 FI2009050029W WO2009092849A1 WO 2009092849 A1 WO2009092849 A1 WO 2009092849A1 FI 2009050029 W FI2009050029 W FI 2009050029W WO 2009092849 A1 WO2009092849 A1 WO 2009092849A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
luminaire
ribbons
flange
protective cover
Prior art date
Application number
PCT/FI2009/050029
Other languages
French (fr)
Inventor
Jyrki Sipinen
Original Assignee
Obelux Oy
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 Obelux Oy filed Critical Obelux Oy
Publication of WO2009092849A1 publication Critical patent/WO2009092849A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • 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
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/025—Elongated bases having a U-shaped cross section
    • 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
    • F21V15/013—Housings, e.g. material or assembling of housing parts the housing being an extrusion

Definitions

  • the object of this invention is a LED luminaire, which comprises a body and end flanges, and which luminaire comprises LEDs (Light Emitting Diodes) fitted inside the body.
  • LEDs Light Emitting Diodes
  • the object of this invention is a LED luminaire intended for damp spaces, in which luminaire LEDs (Light Emitting Diodes) are fitted inside the body.
  • luminaire LEDs Light Emitting Diodes
  • the body comprises a rigid end flange covering the end on at least the second end, which flange can be fixed to the end of the body with a fixing arrangement, and the edge of which end flange comprises a sealing ribbon, or a sealing film, of an elastic material for sealing the joint between the end flange and the body.
  • the body comprises sealing ribbons at a right angle to the end flange, for sealing.
  • One such luminaire comprises a transparent protective cover
  • the sealing ribbon can also be sealing the different body parts to each other, when the body is formed of parts.
  • LED luminaires are used particularly as outdoor luminaires to illuminate e.g. the surface of the exterior walls of buildings, of masonry walls or other such walls (so-called wall washer).
  • sealing ribbons are used that are for the most part the same length as the body.
  • a problem with these prior-art luminaires is the weakening of the sealing over time, which causes in particular shrinking of the sealing ribbons between e.g. the body and the glass plate and the disengagement resulting from this, in which case the sealing ribbons no longer seal effectively between the flange and the body, but instead gaps remain between them, via which moisture can penetrate the luminaire.
  • the purpose of this invention is to eliminate the drawbacks of prior art and to achieve a new type of LED luminaire, in which the seal between the body and the end flange is improved and made more efficient.
  • the sealing ribbons between the protective cover and the body or the body parts are lengthened compared to prior-art solutions, and in addition to this holes are made in the flange and in the seal of the flange in the corresponding points of the sealing ribbons between the body and the protective cover.
  • the ends of the sealing ribbons are made to be beveled.
  • the tolerances of the parts of the luminaire may be wider.
  • the glass can be to some extent, typically in the range of 1 mm, too short or correspondingly longer than the body profile, and the roundings of the corners of the glass can be relatively large.
  • the sealing method according to the invention works, however, in both situations.
  • Figs. 1 and 2 present an perspective explosion view of a LED luminaire according to the invention.
  • Figs. 1 and 2 present an perspective explosion view of a LED luminaire according to the invention.
  • Figs. 1 - 2 present a LED luminaire 100 intended for outdoor use, which is used to illuminate e.g. the surface of the exterior walls of buildings, of masonry walls or other such walls (so-called wall washer).
  • a profile-type rigid body 101 e.g. of aluminum, which is essentially U-shaped in cross-section.
  • LEDs (Light Emitting Diodes) 102 e.g. in the figure 6 units
  • circuit board 103 which also comprises control electronics for controlling the luminaire and the electrical supply connection needed for the electricity supply e.g. from outside the luminaire.
  • the luminaire comprises a transparent protective cover 104
  • the body comprises a rigid end flange 109, 110, e.g. of plastic, covering the end on both ends, which end flange can be fixed to the end of the body with a fixing arrangement 111.
  • a sealing film 112 of an elastic material is on the edges of both flanges, which sealing film passes around the whole edge and it seals the joint between the body, the protective cover and the end flange.
  • holes 114 can be made in the flange in the corresponding points, into which the sealing ribbons can be threaded.
  • the ends 115 - 116 of the sealing ribbons can also be made to be beveled. In installation the ends are threaded through the apertures of the flange seal, after which the end flange (end cover) can be closed e.g. by screwing into position.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

LED luminaire (100), in which luminaire LEDs (Light Emitting Diodes) are fitted inside the body, and which luminaire comprises a body (101 ) and an end flange (109, 110) on at least the second end, which can be fixed to the end of the body with a fixing arrangement (111 ), in which a seal (112) of an elastic material is on the edge of the flange for sealing the joint between the end flange and the body, which body comprises one or more sealing ribbons (107, 108) at an angle, preferably at a right angle, with respect to the end flange for sealing the body part or body parts to each other and/or with one or more, preferably transparent, protective covers arranged in the body, and which sealing ribbons (107, 108) are essentially longer than the body and extend at least over the seal (112) of the second end of the body, and the seal of the flange comprises apertures (113) in the corresponding points of the sealing ribbons between the body and the protective cover through which the sealing ribbons can be fitted.

Description

LED LUMINAIRE
Field of the invention
The object of this invention is a LED luminaire, which comprises a body and end flanges, and which luminaire comprises LEDs (Light Emitting Diodes) fitted inside the body.
More particularly the object of this invention is a LED luminaire intended for damp spaces, in which luminaire LEDs (Light Emitting Diodes) are fitted inside the body.
The body comprises a rigid end flange covering the end on at least the second end, which flange can be fixed to the end of the body with a fixing arrangement, and the edge of which end flange comprises a sealing ribbon, or a sealing film, of an elastic material for sealing the joint between the end flange and the body.
The body comprises sealing ribbons at a right angle to the end flange, for sealing.
One such luminaire comprises a transparent protective cover
(typically a glass plate) fitted onto the top end of the body, which protective cover is sealed at its edges to the top part of the body by means of elastic sealing ribbons. The sealing ribbon can also be sealing the different body parts to each other, when the body is formed of parts.
These types of LED luminaires are used particularly as outdoor luminaires to illuminate e.g. the surface of the exterior walls of buildings, of masonry walls or other such walls (so-called wall washer).
Prior art
In prior-art solutions, sealing ribbons are used that are for the most part the same length as the body. A problem with these prior-art luminaires is the weakening of the sealing over time, which causes in particular shrinking of the sealing ribbons between e.g. the body and the glass plate and the disengagement resulting from this, in which case the sealing ribbons no longer seal effectively between the flange and the body, but instead gaps remain between them, via which moisture can penetrate the luminaire.
In addition to this a widely used prior-art sealing method is the use of different adhesive substances and sealing substances, such as silicon compounds and polyurethane compounds. When using these types of substances, particularly adhesives, procedures for repairing the luminaire are awkward and almost without exception require servicing that takes place in the factory or a person that has received special training.
Summary of the invention
The purpose of this invention is to eliminate the drawbacks of prior art and to achieve a new type of LED luminaire, in which the seal between the body and the end flange is improved and made more efficient. In the luminaire according to the invention the sealing ribbons between the protective cover and the body or the body parts are lengthened compared to prior-art solutions, and in addition to this holes are made in the flange and in the seal of the flange in the corresponding points of the sealing ribbons between the body and the protective cover. In order to facilitate installation of the sealing ribbons between the body and the protective cover, the ends of the sealing ribbons are made to be beveled.
The characteristic features of the solution according to the invention are described in detail in claim 1 , and of its preferred embodiments in the other claims.
By means of the invention the sealing of especially LED luminaires intended for outdoor use and for other damp spaces can be clearly improved and also the assembly and opening of them can be made easier.
Additionally, the tolerances of the parts of the luminaire may be wider. For example, the glass can be to some extent, typically in the range of 1 mm, too short or correspondingly longer than the body profile, and the roundings of the corners of the glass can be relatively large. The sealing method according to the invention works, however, in both situations.
Short description of the drawings
In the following, the invention will be described in more detail by the aid of an embodiment with reference to the attached drawings, wherein Figs. 1 and 2 present an perspective explosion view of a LED luminaire according to the invention. Detailed description of preferred embodiments
Figs. 1 - 2 present a LED luminaire 100 intended for outdoor use, which is used to illuminate e.g. the surface of the exterior walls of buildings, of masonry walls or other such walls (so-called wall washer).
It comprises a profile-type rigid body 101 , e.g. of aluminum, which is essentially U-shaped in cross-section. LEDs (Light Emitting Diodes) 102 (e.g. in the figure 6 units) are fitted inside it in one row, which LEDS are connected to a circuit board 103, which also comprises control electronics for controlling the luminaire and the electrical supply connection needed for the electricity supply e.g. from outside the luminaire.
The luminaire comprises a transparent protective cover 104
(typically a glass plate) to be fixed onto the top end of the body, which protective cover is threaded into the edge grooves 105, 106 in the profile and sealed at its edges to the top part of the body on both sides by means of elastic sealing ribbons 107, 108.
The body comprises a rigid end flange 109, 110, e.g. of plastic, covering the end on both ends, which end flange can be fixed to the end of the body with a fixing arrangement 111. A sealing film 112 of an elastic material is on the edges of both flanges, which sealing film passes around the whole edge and it seals the joint between the body, the protective cover and the end flange.
In the luminaire according to the invention the sealing ribbons 107,
108 between the protective cover and the body are essentially longer than the body and extend over the body at both ends, and in addition to this holes 113 are made in the seal of the flange in the corresponding points of the sealing ribbons between the body and the protective cover.
In addition holes 114 can be made in the flange in the corresponding points, into which the sealing ribbons can be threaded.
In order to facilitate installation of the sealing ribbons between the body and the protective cover, the ends 115 - 116 of the sealing ribbons can also be made to be beveled. In installation the ends are threaded through the apertures of the flange seal, after which the end flange (end cover) can be closed e.g. by screwing into position.
It is obvious to the person skilled in the art that the different embodiments of the invention are not limited solely to the example described above, but that they may be varied within the scope of the claims presented below. The LEDs can, of course, be in a number of rows if the lighting need so requires.

Claims

1. LED luminaire (100), in which luminaire LEDs (Light Emitting Diodes) are fitted inside the body, and which luminaire comprises a body (101 ) and an end flange (109, 1 10) on at least the second end, which can be fixed to the end of the body with a fixing arrangement (1 1 1 ), in which a seal (1 12) of an elastic material is on the edge of the flange for sealing the joint between the end flange and the body, which body comprises one or more sealing ribbons (107, 108) at an angle, preferably at a right angle, with respect to the end flange for sealing the body part or body parts to each other and/or with one or more, preferably transparent, protective covers arranged in the body. characterized in that the sealing ribbons (107, 108) are essentially longer than the body and extend at least over the seal (1 12) of the second end of the body, and the seal of the flange comprises apertures (1 13) at the corresponding points of the sealing ribbons between the body and the protective cover, through which the sealing ribbons can be fitted.
2. Luminaire according to claim 1 , characterized in that the flange comprises depressions or holes in the corresponding points, into which the sealing ribbons can be fitted.
3. Luminaire according to claim 1 , characterized in that to facilitate installation of the sealing ribbons between the body and the protective cover, the ends of the sealing ribbons are bevels.
4. LED luminaire according to claim 1 , 2 or 3, which comprises a profile-type rigid body (101 ), which is essentially U-shaped in cross-section, in which luminaire one or more rows of LEDs (Light Emitting Diodes) (102) are fitted inside the body, which luminaire comprises a transparent protective cover (104) fitted onto the body on the top part of it, which protective cover is sealed at its edges to the top part of the body by means of elastic sealing ribbons (107, 108), characterized in that the sealing ribbons (107, 108) between the protective cover and the body are essentially longer than the body and extend at least over the seal (1 12) of the second end of the body, and the seal of the flange comprises apertures (113) at the corresponding points of the sealing ribbons between the body and the protective cover, through which the sealing ribbons can be fitted.
PCT/FI2009/050029 2008-01-23 2009-01-15 Led luminaire WO2009092849A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20080057 2008-01-23
FI20080057A FI120275B (en) 2008-01-23 2008-01-23 Led lamp

Publications (1)

Publication Number Publication Date
WO2009092849A1 true WO2009092849A1 (en) 2009-07-30

Family

ID=39004282

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2009/050029 WO2009092849A1 (en) 2008-01-23 2009-01-15 Led luminaire

Country Status (2)

Country Link
FI (1) FI120275B (en)
WO (1) WO2009092849A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993020384A2 (en) * 1992-03-31 1993-10-14 Phoenix Products Company, Inc. Outdoor framing projector
DE202006011124U1 (en) * 2006-07-19 2007-08-30 Lite-Licht Gmbh Light, lighting system or the like.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993020384A2 (en) * 1992-03-31 1993-10-14 Phoenix Products Company, Inc. Outdoor framing projector
DE202006011124U1 (en) * 2006-07-19 2007-08-30 Lite-Licht Gmbh Light, lighting system or the like.

Also Published As

Publication number Publication date
FI20080057A (en) 2009-07-24
FI20080057A0 (en) 2008-01-23
FI120275B (en) 2009-08-31

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