EP2685157A2 - Lampe à profil DEL étanche - Google Patents

Lampe à profil DEL étanche Download PDF

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Publication number
EP2685157A2
EP2685157A2 EP20130405078 EP13405078A EP2685157A2 EP 2685157 A2 EP2685157 A2 EP 2685157A2 EP 20130405078 EP20130405078 EP 20130405078 EP 13405078 A EP13405078 A EP 13405078A EP 2685157 A2 EP2685157 A2 EP 2685157A2
Authority
EP
European Patent Office
Prior art keywords
led
lamp
profile
heat sink
tube
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Withdrawn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
EP20130405078
Other languages
German (de)
English (en)
Other versions
EP2685157A3 (fr
Inventor
Ferdinand Pfleghart
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.)
Individual
Original Assignee
Individual
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
Priority claimed from CH01059/12A external-priority patent/CH706718A1/de
Priority claimed from CH00643/13A external-priority patent/CH707781A2/de
Application filed by Individual filed Critical Individual
Publication of EP2685157A2 publication Critical patent/EP2685157A2/fr
Publication of EP2685157A3 publication Critical patent/EP2685157A3/fr
Withdrawn legal-status Critical Current

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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
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • 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
    • F21V31/04—Provision of filling media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/90—Methods of manufacture
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/506—Cooling arrangements characterised by the adaptation for cooling of specific components of globes, bowls or cover glasses
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • 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
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
    • 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
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/401—Lighting for industrial, commercial, recreational or military use for swimming pools
    • 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
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to the field of LED (Light Emitting Diodes) luminaires, and more particularly to an LED luminaire which has complete water and water vapor tightness and which is resistant to chemicals and weathering such as high temperature variations and ice formation is.
  • LED Light Emitting Diodes
  • a first aspect of the invention relates to an LED light in training as LED tube light or LED profile light.
  • the LED units are arranged on a dimensionally stable longitudinal profile and potted in a potting compound.
  • the LED units which are arranged on a carrier tape, encapsulated in a light-transmitting tube.
  • LED profile lights and LED tube lights which are designed for outdoor use.
  • the LED strips are thus protected by means of a jacket against the weather. Since the ends of the sheath are not hermetically sealed, neither the LED tape, nor the electrical connection is protected against the ingress of water vapor and water, also lacks protection against harmful chemicals.
  • LED tapes are not suitable for the chlorine and then occupied with chemicals water and moisture range.
  • the light bands are only for very specific Designed for outdoor use. Their field of application is severely limited.
  • the sheathing of the LED strips also causes a very limited heat dissipation, which shortens the life of the diodes, or prevents the use of LED strips with higher power.
  • Plastic-encased LED strips are installed, for example, in handrails, glass railing, etc. The LED strips are mounted on the profiles with the heat-insulating sheathing.
  • a second aspect of the invention relates to an LED lamp with a light socket and a translucent cover.
  • LED lights which are designed for outdoor use.
  • the LED lights are protected by a sheathing, usually a combination of chrome nickel steel and glass, against the effects of weather and chemicals. Since the casing, in particular with chromium-nickel steel, gives off the heat generated by the LED units very sluggishly to the ambient air or to the water, excessive operating temperatures result, in particular with powerful LED lamps.
  • the available on the market LED lights with a good heat dissipation are due to the materials used not for the chlorine and then occupied with chemicals water and humidity range.
  • These LED lights are only suitable for very specific outdoor applications and their field of application is severely limited.
  • Conventional plastics often replace the glass in LED luminaires, but require a great deal of effort in sealing technology and are nevertheless limited to water vapor tight. Furthermore, they are only partially resistant to higher alkali and acid concentrations and UV rays.
  • An object of the present invention is to propose an LED light, in particular an LED tube light, which is water and steam resistant, temperaturzzi-, freezing and weather resistant. Resistance to temperature shock means that the LED luminaire or its LED units do not suffer any damage during extreme temperature changes within a short time.
  • the LED luminaire according to the invention according to the independent claims 1 and 7 thus contains a heat sink profile with an attached LED tape.
  • the heat sink profile and the LED tape are encapsulated in a jacket tube.
  • the heat sink profile and the LED strip are preferably partially or completely encapsulated in the casing tube in a, in particular expansible potting compound.
  • the grout fills the sheathing tube z. B completely off.
  • the one or more coolant profiles are preferably jammed in the sheath tube.
  • the jacket tube is particularly weather-resistant, water and water vapor-tight, temperature and freeze-resistant, chemicals resistant and impact resistant.
  • tube is intended to mean an elongated hollow body whose length is substantially greater than its diameter.
  • the tube may be dimensionally stable or be formed as a non-dimensionally stable tube. The latter difference is of limited importance with reference to the finished LED lamp, in that the cavity is filled with a potting compound and thereby a non-dimensionally stable tube is transferred into a consistently stable tube shape.
  • the jacket tube is preferably made of a plastic, in particular of a translucent fluoropolymer. Translucent means that the material allows electromagnetic waves to pass in the visible range.
  • the jacket tube is in particular transparent.
  • fluoropolymer for the sheath tube is z.
  • fluorinated elastomer As a fluorinated elastomer. Fluorinated elastomers are z. B. fluoroelastomers such as FKM according to DIN ISO 1629, formerly called FPM. Other designations are also FCM or CFM, fluororubber or fluorocarbon elastomer. Fluorinated elastomers can also Rubbers that share the common feature vinylidene (di) fluoride (VDF) as one of their monomers.
  • VDF vinylidene fluoride
  • the fluoroelastomer can also be a copolymer of fluorinated hydrocarbons.
  • fluorine-containing copolymers such as tetrafluoroethylene / hexafluoropropylene copolymer (FEP), ethylene / tetrafluoroethylene copolymer (ETFE) and perfluoroalkoxy copolymer (PFA) can also be used.
  • FEP tetrafluoroethylene / hexafluoropropylene copolymer
  • ETFE ethylene / tetrafluoroethylene copolymer
  • PFA perfluoroalkoxy copolymer
  • FKM fluoroelastomer
  • PFA perfluoroalkoxy copolymer
  • ETFE ethylene / tetrafluoroethylene copolymer
  • the sheathing tube is z. B. flexible, i. made flexible. This can be z. B. can be achieved by a small wall thickness. So the sheathing tube z. B. be designed as a hose, which z. B. is not dimensionally stable. However, it is also possible that the sheath tube is formed dimensionally stable.
  • the jacket tube may have elastic properties.
  • the cladding tube may have a wall thickness of 0.1 mm or more, more preferably 0.2 mm or more.
  • the jacket tube can has a wall thickness of 2 mm or less, more preferably 1 mm or less.
  • the cladding tube ensures good heat dissipation with the wall thickness selected and yet can meet the mechanical, chemical and physical requirements, such as the desired light transmittance value.
  • the jacket tube is preferably formed closed in cross-section.
  • the jacket tube preferably has only one or two ends open at the ends.
  • the jacket tube may have a round, in particular circular or oval, cross-sectional shape.
  • the potting compound is preferably translucent, in particular transparent. The complete pouring out of the luminaire prevents the "breathing process” and thus the formation of condensation in the LED luminaire.
  • the potting compound may be made of a hardening plastic, which is flowable in the processing process.
  • the potting compound may be, for example, a silicone, in particular a highly transparent silicone gel, which is made of silicone rubber, or contain this.
  • the potting compound may in particular be an addition-crosslinking silicone rubber, in particular an RTV-2 silicone rubber, as described, for example, in US Pat. also be sold under the brand name SilGel®, his or her.
  • the casting compound expediently has the property that it does not undergo any chemical reaction with the LEDs.
  • heat sink is preferably a matched to the performance of the LED strip heat-conducting heat sink profile.
  • the heat sink profile is preferably present as a longitudinal profile.
  • the heat sink profile consists of a good heat conducting material.
  • the heat sink profile may be made of metal such as aluminum or copper or an alloy thereof.
  • the heat sink profile can be formed one or more parts.
  • the heat sink profile can be composed of several sub-profiles arranged one behind the other in the longitudinal direction.
  • the heat sink profile can also be composed transversely to the longitudinal direction of a plurality of partial profiles running side by side, in particular parallel to one another.
  • the sub-profiles may be connected to each other, in particular be thermally conductively connected or touch at least thermally conductive, in particular flat contact.
  • the subprofiles can z. B. be connected to each other via an adhesive, welding, soldering and / or positive connection.
  • the heat sink profile can according to a development of the invention is designed such that it touches the inner wall of the sheath tube part of the surface.
  • the heat sink profile can touch the inner wall of the jacket tube with a partial peripheral surface.
  • the heat sink profile may be the inner wall of the sheath tube with at least one line or strip-shaped partial circumferential surface touch.
  • the partial peripheral surface which is a contact surface, may be parallel to the longitudinal direction of the LED light.
  • the contact of the inner wall of the sheathing tube with only a partial peripheral surface of the heat sink profile is intended to ensure that the heat sink profile can be pushed without too much frictional resistance during assembly of the lamp in the sheath tube.
  • the contact of the inner wall with a partial peripheral surface of the heat sink profile to ensure efficient heat dissipation to the outside.
  • the heat sink profile has in particular a longitudinal extent, which corresponds to a multiple of the largest cross-sectional diameter.
  • the heat sink profile can be plastically deformable along its longitudinal extent. In this way, the, z. B. rectilineal heat sink profile by plastic deformation into different, preferably dimensionally stable longitudinal geometries.
  • the heat sink profile can be shaped in particular by bending into different longitudinal geometries. The bends can lie in one plane, as is the case with helical structures, for example. The bends could also be in three dimensions, as is the case, for example, with helical structures. For example, bends with a radius of 15 cm can be made.
  • the cross-sectional geometry can be constant over the entire longitudinal extent of the heat sink profile.
  • a direct heat termination is preferably formed, whereby an optimal thermal bridge is ensured. This ensures a long life of the LEDs.
  • the LED strip is preferably mounted directly on the heat sink profile, which ensures optimal heat dissipation.
  • the LED tape can z. B. be connected via an adhesive bond with the heat sink profile.
  • the LED strip comprises a band-shaped or strip-shaped LED carrier with printed conductors, via which the LED units electrical energy and / or control signals are transmitted.
  • the strip-shaped LED carrier is preferably flexible, i. made flexible.
  • the strip-shaped LED carrier has, for example, a thickness of 0.1 to 2 mm.
  • the strip-shaped LED support On the strip-shaped LED support are a plurality of LED units in the longitudinal extension of the LED strip one behind the other and z. B. arranged at a distance from each other.
  • the LED units are designed, for example, as LED chips.
  • the LED units are mounted on the strip-shaped LED carrier.
  • the LED carrier corresponds to the board.
  • the LED strip comprising LED units and printed conductors on the strip-shaped LED carrier forms a complete functional unit.
  • the strip-shaped LED support is designed to be flexible, it can also be applied to a heat sink profile shaped in its longitudinal geometry.
  • the inner diameter of the LED tube light is preferably kept as small as possible, so that as little space as possible has to be potted with the potting compound. This ensures good heat transfer via the heat sink profile to the outside.
  • the power of the LED lamp and the Vergussffenanteil are preferably in adequate proportion with the heat sink, or with the tube diameter, so that optimum heat dissipation is ensured.
  • the cross-sectional geometry of the heat sink profile is preferably selected such that the cavity to be cast with the potting compound is not too large so as to make the heat dissipation to the outside efficient.
  • the cross-sectional geometry of the heat sink profile is preferably selected such that the heat sink profile does not bear against the inner wall of the jacket tube over a large area so as to prevent excessive friction when inserting the heat sink profile into the jacket tube.
  • a preferably designed as a thin-walled outer shell sheath tube also ensures a very good heat flow to the outside.
  • the preferred chemical-resistant, temperature impact, freezing and weather-resistant jacket tube allows an almost unlimited variety of applications.
  • the preferred high transparency of the sheath tube also ensures optimum light throughput.
  • the LED lamp or the associated sheathing tube is sealed at the open ends or via a respective sealing arrangement waterproof and water vapor-tight to the outside.
  • the seal assembly may be one or more in series, i. comprise successive sealing elements.
  • the seal arrangement prevents any ingress of moisture and locks the pipe ends firmly mechanically.
  • the line connections are guided, for example, via the at least one pipe end into the interior of the luminaire.
  • the cable connections are guided through the seals, for example.
  • Stretchable potting compounds, or casting agents such as silicones can be destroyed by the inward diffusion of chemical substances.
  • the gasket attached to the beginning and end of the protective cover is preferably also chemically resistant.
  • the seal may therefore be a seal made of a fluoropolymer, for example of an FPM (fluoroelastomer), in particular of one of the above-mentioned fluoroelastomer.
  • FPM fluoroelastomer
  • This material is characterized by its chemical resistance.
  • the invention also relates to a method for producing an inventive LED lamp, in particular LED tube light.
  • the heat sink profile is provided in the desired longitudinal geometry.
  • the heat sink profile has, in particular, a longitudinal geometry corresponding to the LED lamp to be produced.
  • the forming step is preferably carried out before the introduction of the heat sink profile in the sheath tube and preferably also before the application of the LED strip.
  • the flowable potting compound is introduced, for example, through the lower end of the jacket tube.
  • the jacket tube is thus cast from bottom to top with the potting compound.
  • the upper end of the pipe is preferably also open or at least permeable to air, so that the air can escape from the interior of the pipe during filling of the potting compound. Thanks to this procedure, the potting compound is introduced without disturbing air pockets.
  • This embodiment is particularly suitable for longer pipe sections.
  • the flowable potting compound is introduced through the upper end of the sheath tube.
  • the jacket tube is thus cast from top to bottom with the potting compound.
  • This embodiment is suitable, for example, for shorter pipe sections.
  • the LED light is available as an LED profile light.
  • the LED profile light contains a carrier profile, which is designed as a longitudinal profile.
  • the carrier profile may be made of a chemical resistant chromium nickel steel or of a material particularly suitable for heat dissipation, in particular metal, such as aluminum.
  • the LED lamp body On the support profile LED lamp body are mounted one behind the other in the profile longitudinal direction.
  • the LED lamp body are on the support profile z. B. arranged at a distance from each other.
  • the LED lamp body comprise a base body and at least one mounted on the base LED unit.
  • the LED units can be glued to the base body.
  • the LED lamp body are z. B. connected in series.
  • the LED lamp bodies are connected to each other via cable connections, for example.
  • the LED units can be z. B. by a common control.
  • the carrier profile may have a groove extending in the profile longitudinal direction or depression, which serves as a cable channel.
  • the LED lamp body is connected via the base body by means of a positive and / or non-positive connection or material connection with the carrier profile.
  • the lamp body can, for. B. be bolted to the carrier profile. Clip, snap or plug connections as well as glued joints are also possible.
  • the main body preferably consists of a good heat-conducting material, in particular metal, such as aluminum.
  • the main body is for example plate-shaped.
  • the LED units are cast on the base body partially or completely in a translucent, in particular transparent potting compound.
  • the arranged on the body LED unit can be covered by a perforated plate.
  • the perforated plate can be made of stainless steel. Perforated plate and LED unit can be cast together partially or completely in the translucent, especially transparent, potting compound.
  • the spaces between two LED lamp body can be covered by a cover. Accordingly, the cable connections are covered.
  • the cover can be made of stainless steel.
  • Another LED luminaire according to independent claim 10 includes a luminaire head and lamp base arranged along a luminaire axis.
  • the light socket contains a base shaft.
  • the base shaft is z. B. annular.
  • the base shaft is z. B. parallel to the lamp axis of an LED receiving surface.
  • the LED receiving surface is located, for example, within the annular base shaft.
  • the LED receiving surface is set back, for example, with respect to the front end of the annular base shaft.
  • the luminaire head consists of a high-performance plastic.
  • the lamp head and the socket shaft are along the lamp axis z. B. connected via a positive connection and / or frictional connection with each other.
  • the compound may also be an adhesive connection, for. B. an adhesive bond.
  • the positive connection may be a clip connection, snap connection or a plug connection.
  • connection between the lamp head and socket shaft can also be a screw connection.
  • the socket shaft contains a screw thread in the form of an external thread.
  • the lamp head contains a screw thread, which is designed as an internal thread.
  • the internal thread is arranged in the area of the screw head collar. Lamp head and base shaft are bolted together.
  • the LED light is sealed off in a water vapor-tight manner between the lamp head and the base shaft.
  • the lamp head is z. B. cap-shaped.
  • the lamp head is designed, for example, as a hollow body open on one side.
  • the lamp head contains z. B. an annular lamp head collar.
  • the light head collar is z. B. arranged in the assembled state concentric to Söckelschaft.
  • the light head collar includes z. B. in the assembled state, the outer circumference of the base shaft.
  • the lamp head forms z. B. a headboard.
  • the headboard can z. B. be curved flat or outward.
  • the lamp head collar closes z. B. along the outer edge of the head end wall to this.
  • the head end wall forms z. B. from the light passage area.
  • the lamp head can on the outside of the lamp head collar one or more circumferential annular grooves each for receiving a seal, for. As an O-ring, have.
  • the LED light can z. B. be mounted on this seal in a pipe or other structure.
  • the light socket is made for example of a metal, in particular of a good heat conducting metal.
  • the light socket can be made of aluminum or an aluminum alloy.
  • one or more LED units may be disposed on an LED receiving surface of the light socket.
  • the diameter of the base shaft and accordingly also of the lamp head is preferably adapted to the space required for the placement of the LED units space on the light socket.
  • the lamp base included a guide and the lamp head a guide rail.
  • the guide groove is located outside the base shaft and concentric with this on a schulterförinigen paragraph on the light socket.
  • the guide bar engages in the guide groove.
  • the guide bar can, for. B. be arranged on the light collar.
  • the guide bar may be annular.
  • the guide bar can be aligned parallel to the axis.
  • a sealing means in particular a sealing ring, such as O-ring, is preferably arranged.
  • the base shaft includes a shank groove.
  • the shank groove is expedient externally circulating, i. on the side of the external thread, arranged.
  • the shank groove is preferably arranged in front of the screw thread from the guide groove in the lamp base.
  • In the shaft groove in the mounted state is preferably a Schaftnutdichtung, z.
  • the lamp head forms a light passage area in which the light generated by the LED unit can pass through the lamp head to the outside.
  • the lamp head consists of a translucent fluoropolymer.
  • the fluoropolymer may be a fluoropolymer according to the disclosure above.
  • the luminaire head may in particular consist of a perfluoroalkoxy copolymer (PFA) or an ethylene / tetrafluoroethylene copolymer (ETFE).
  • the LED unit is preferably mounted on the light socket.
  • the luminaire head and the luminaire base can form a luminaire chamber when mounted.
  • additional optical means may be arranged in the luminaire chamber, between LED unit and lamp head.
  • the luminaire chamber may be partially or completely filled with a translucent or transparent potting compound.
  • the radiation intensity and the radiation angle can be influenced.
  • the optical means or the lamp head can have concave or convex structures.
  • the light output and the light color can be influenced.
  • the light intensity of an LED light can be influenced by a special structure and / or surface finish of the lamp shaft or by changing the radiation angle at a constant light source.
  • the LED lamp may include a cooling ring, which dissipates heat accumulating in the light area.
  • the cooling ring may be disposed within the base shaft and surround the at least one LED unit.
  • the cooling ring can connect to the base shaft or to the foot of the base shaft or rest against this.
  • the light socket can be equipped with a chemical-resistant protective layer, eg. B. of epoxy resin, coated.
  • a chemical-resistant protective layer eg. B. of epoxy resin, coated.
  • the LED light should be protected be that they can be used in all conditions. Excluded are possibly only high loads on roads.
  • the LED light can on its back, D.h.
  • the lamp head opposite side form a threaded receptacle (eg M6), via which the LED light can be easily mounted on a structure.
  • the LED lamp may have in the sidewall a gasket disposed in a circumferential annular groove, e.g. have an O-ring.
  • the LED lamp may e.g. be mounted over this seal in a pipe or other structure.
  • the LED light can contain a cable duct, through which a cable can be led from the outside to the LED receiving surface.
  • the LED light can contain a, leading from the outside into the lamp chamber injection channel through which z.
  • the potting compound may be a potting compound of the type disclosed above.
  • Cable duct and / or injection channel can run parallel to the lamp axis. Cable duct and / or injection channel can emerge from the light socket on the side opposite the lamp head.
  • FIG. 1 is the LED strip 1, on which LED units 15 are arranged one behind the other in the longitudinal direction, glued on a formed as a longitudinal profile heat sink profile 2.
  • FIG. 2 the functional unit of LED strip 1 and heat sink profile 2 is inserted into a translucent casing tube 3 made of plastic.
  • FIG. 3 shows an LED tube light 20 with a completely in expansible potting compound 6, for example, two-component Silikonvergusskar, cast functional unit of LED strip 1 and heat sink profile 2, which is encapsulated in the sheath tube 3.
  • the functional unit is resistant to water and steam under all conditions of use, temperature, weather and freezing.
  • the pipe ends are sealed with a seal 4, 5. Through the one seal 4, a cable 7 is passed.
  • the chemical and weather-resistant jacket tube 3 is made of transparent Teflon, for example.
  • Electric cable 7, or Rohr rotating- and pipe end seal with chemical and weather-resistant fracture seals 4 and 5 are for example made of FPM.
  • FIG. 4 shows the LED tube light according to FIG. 3 in a cross-sectional view. It can be seen that the heat sink profile 2 is formed from two mutually parallel partial profiles 2a, 2b, which are arranged one above the other and clamped in the sheathing tube 3 each other.
  • the larger part profile 2a on which the LED strip 1 is applied, is pushed into the jacket tube 3.
  • the smaller part profile 2b is pressed with the insert to the free profile surface of the larger part profile 2a.
  • the two sub-profiles 2 a, 2 b are clamped in the jacket tube 3.
  • the two sub-profiles 2a, 2b form linear contact surfaces 16, with which they touch the inner wall of the sheath tube 3, and which effect the clamping.
  • the jacket tube 3 may, for. B. have a length of 10 m and a diameter of 14 mm.
  • the larger partial profile 2a can have a cross-sectional geometry of 12 ⁇ 4 mm (width ⁇ height) and the smaller partial profile of 8 ⁇ 4 mm (width ⁇ height).
  • the LED light is present as LED profile light 30 ( FIG. 5 ).
  • the LED profile light 30 includes a carrier profile 8, which is designed as a longitudinal profile.
  • LED luminaire body 10 are successively and at a distance from each other. These are z. B. attached via screw on the support section 8.
  • the LED lamp body 10 each contain at least one LED unit 9.
  • the LED lamp body 10 are connected via cable connections 12 together in series switched and connected.
  • the cable connection 12 may be formed chemical and water pressure resistant.
  • the lamp body 10 includes a base body 13 with heat-conducting properties.
  • the LED unit 9 is mounted on the base body 13, such that the base body 13 is able to effectively dissipate the heat generated by the LED units 9.
  • the main body 13 is made of a metal having good heat conduction properties, such as aluminum.
  • the basic body can also be made of chrome-nickel steel V4A, in particular for applications in the field of chemicals.
  • a cover (not shown) may be provided, which the gap in the profile longitudinal direction between two LED lamp body 10, i. the cable connection 12, covers.
  • the cable connection 12 is protected by the cover.
  • the cover can be made of stainless steel V4A.
  • a perforated plate 31 made of stainless steel is arranged above the LED unit 9.
  • the LED unit 9 is cast together with the perforated plate 31 in a transparent, chemical-resistant potting compound 11.
  • the potting compound may be an epoxy resin. The LED unit 9 is protected against external influences.
  • the flexible design enables series-connected lighting via various molded parts.
  • the luminaire profile system design is control and service friendly, and allows a great individuality.
  • the LED profile luminaire 30 according to the invention requires no elaborate post-processing of the carrier profile 8 for attaching the LED units.
  • the carrier profile 8 and the cover made of stainless steel Be V4A Since the application is in the water range, even the low thermal conductivity of chromium nickel steel is not a major disadvantage.
  • the carrier profile 8 and possibly also the cover may be made of aluminum.
  • a good thermal conductivity of the carrier profile 8 plays an important role. Aluminum is excellent for this.
  • the LED lights according to the invention can be placed in handrails, e.g. with U-profile design, in wall recesses, ceiling grooves, floor recesses etc. are installed.
  • the large cooling surface of the profile ensures optimum heat dissipation and thus enables installation in both dry and wet areas.
  • FIG. 6 shows a further embodiment of an LED lamp according to the second aspect of the invention 100.
  • the chemical and weather-resistant lamp head 101 with screw thread 105 consists of high-performance plastic, and is along a lamp axis 122 so connected to the light socket 102, that the guide groove 103 with the O Ring 106 and the shaft groove 107 with O-ring 120 by the connection with a guide bar 121 on the lamp head collar 108 and by the overreaching of the lamp head collar 108 results in a complete leak under all conditions.
  • the lamp chamber 110 can receive optical means between LED unit 111 and light transmission area 104 in the head end wall 123.
  • the cooling ring 118 around the LED unit helps dissipate the heat radiating forward.
  • Gross designed LED lights 100 with multiple LED units 111 obtained by adjusting the base shaft 109 enough strength to withstand mechanical stresses.
  • Partial or complete pouring of the lamp chamber 110 and the cable channel 119 to the cable gland 113 with a stretchable potting compound 112 reduces the pressure forces at temperature gradients between the inner and outer walls.
  • a chemical resistant coating 116 of the base wall or the outer surfaces of the light socket makes the lamp universally applicable.
  • the LED light can be easily mounted.
  • the inventive LED lights are used indoors and outdoors.
  • the inventive LED light is particularly suitable for applications in swimming pools, pool areas, wellness facilities, where high humidity prevails, in wells, in ponds, in river water areas, and generally in wet areas, where a permanent or temporary contact of the LED light with water and / or high humidity should be possible.

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)
EP20130405078 2012-07-09 2013-06-28 Lampe à profil DEL étanche Withdrawn EP2685157A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01059/12A CH706718A1 (de) 2012-07-09 2012-07-09 Wasserdampfdichte LED-Profil-Leuchte.
CH00643/13A CH707781A2 (de) 2013-03-21 2013-03-21 Chemikalienbeständige LED-Leuchte.

Publications (2)

Publication Number Publication Date
EP2685157A2 true EP2685157A2 (fr) 2014-01-15
EP2685157A3 EP2685157A3 (fr) 2014-02-12

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EP20130405078 Withdrawn EP2685157A3 (fr) 2012-07-09 2013-06-28 Lampe à profil DEL étanche

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Cited By (2)

* Cited by examiner, † Cited by third party
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EP3130846A1 (fr) * 2015-08-11 2017-02-15 Ferdinand Pfleghart Éclairage a del etanche a l'eau
EP4375563A1 (fr) 2022-11-24 2024-05-29 Ferdinand Pfleghart Luminaire profilé à del

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US7135034B2 (en) * 2003-11-14 2006-11-14 Lumerx, Inc. Flexible array
DE102006031345A1 (de) * 2006-07-06 2008-01-10 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Formflexibles Beleuchtungssystem
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3130846A1 (fr) * 2015-08-11 2017-02-15 Ferdinand Pfleghart Éclairage a del etanche a l'eau
EP4375563A1 (fr) 2022-11-24 2024-05-29 Ferdinand Pfleghart Luminaire profilé à del

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