EP3969807A1 - Leuchte mit kühlluftkanälen - Google Patents
Leuchte mit kühlluftkanälenInfo
- Publication number
- EP3969807A1 EP3969807A1 EP20702233.6A EP20702233A EP3969807A1 EP 3969807 A1 EP3969807 A1 EP 3969807A1 EP 20702233 A EP20702233 A EP 20702233A EP 3969807 A1 EP3969807 A1 EP 3969807A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- luminaire
- light
- openings
- lamp
- 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.)
- Granted
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
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
- F21S8/043—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures mounted by means of a rigid support, e.g. bracket or arm
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
- F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
- F21V23/002—Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
-
- 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
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
-
- 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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
- F21V23/007—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing
- F21V23/009—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing the casing being inside the housing of the lighting device
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
- F21V23/023—Power supplies in a casing
-
- 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
- F21V5/00—Refractors for light sources
- F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/0091—Reflectors for light sources using total internal reflection
-
- 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
-
- 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
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional [2D] 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 present invention relates to a lamp which is designed to efficiently dissipate the heat generated during operation of the lamp.
- the present invention relates to what is known as a high bay light.
- Highbay lights are lights that are used for example
- Lighting of larger halls or industrial complexes can be used.
- the luminaires are usually mounted at a relatively large distance from the floor, which is why there is a requirement that the luminaire generates light with high intensity, which then shines on the
- Illuminants are protected from external influences, in particular from moisture and / or dust.
- a lamp of the type described above is, for example, from
- WO 2014/086770 A1 known to the applicant.
- the luminaire described here is essentially formed by a die-cast aluminum body that has large-area cooling rib structures and cooling channels for dissipating the high heat generated during operation of the lamps.
- Equipment is positioned in the middle between two elongated LED arrays, the design of the
- Die-cast body is such that air can also flow around a centrally arranged housing in which the operating means are accommodated in order to enable sufficient heat dissipation.
- a thermal decoupling between the housing for the equipment and the areas of the lamp body in which the lighting means are arranged is largely achieved.
- the luminaire known in the prior art has proven itself many times and is characterized by its excellent light output and, at the same time, high operational reliability.
- the use of the luminaire has proven itself many times and is characterized by its excellent light output and, at the same time, high operational reliability.
- the use of the luminaire has proven itself many times and is characterized by its excellent light output and, at the same time, high operational reliability.
- the use of the luminaire has proven itself many times and is characterized by its excellent light output and, at the same time, high operational reliability.
- Die-cast aluminum body is relatively high and the lamp itself consists of several parts, which on the one hand leads to high material costs and on the other hand to increased effort when installing the light.
- the present invention is therefore based on the object of specifying a possibility of providing a lamp that is comparable in terms of its lighting properties, but in which the effort for manufacture and assembly is reduced and despite everything enables efficient dissipation of the heat occurring during operation becomes.
- Aluminum die-cast body to use a trough-shaped luminaire housing which is preferably made of sheet metal and has a housing base and a housing wall laterally encircling the housing base, which with the
- the luminaire according to the invention furthermore has an electrical and / or electronic luminaire component, the housing base having a flat area for receiving the electrical and / or electronic lighting component over a large area, and one or more through openings being formed in the housing base.
- Holding element attached to the luminaire housing which forms a closed space with the area for receiving, in which the luminaire component is arranged, and / or which holds a cover which forms a closed space with the area for receiving, in which the luminaire component is arranged, is such designed that it has one or more through openings which are aligned with the through openings of the housing base.
- the lamp according to the invention thus consists of relatively few different components, which in particular can be produced in a simple and cost-effective manner.
- the luminaire housing and the holding element are designed in such a way that, when assembled, they form cooling air channels that allow air to flow through and are accordingly suitable for efficiently dissipating the heat that occurs during operation of the luminaire.
- the through-openings of the housing base preferably extend adjacent, particularly preferably along the edge, along the area for flat reception. It can also be provided that one of the respective
- Circumferentially closed edge delimiting the passage opening extends transversely to the section of the luminaire housing that has it.
- the holding element can also have a circumferentially closed web that delimits the corresponding passage opening and extends transversely to the section of the holding element that has it, this web extending
- this through-channel can be designed to widen in a direction pointing away from the through-opening of the lamp housing.
- the flow of air used to cool the lamp can furthermore be achieved according to an advantageous development in that the housing wall of the lamp housing is designed to widen in a funnel-like manner starting from the housing base.
- the housing base has through openings in an area adjoining the housing wall, in such a way that the section of the housing wall adjoining it forms an air inflow surface extending laterally below the through opening.
- the housing base preferably has at least two flat areas
- the areas being separated from one another by a section having a plurality of through openings.
- this enables cooling air to flow through.
- the through openings also reduce the material in the area between the two areas, so that these are thermally decoupled and there is no risk of the heat occurring during operation being transferred from one area to the other area.
- the holding element preferably has fastening sections such as
- the lamp housing itself, in turn, can have one or more blind hole structures for receiving fastening means. These are, in particular, structures in the area of the areas for receiving the light components that according to the preferred development of the invention are designed in such a way that they completely seal the area on the housing base of the lamp and none
- blind hole structures can preferably be integrally formed structures that were formed, for example, in a deep-drawing process.
- the use of separate structures would also be conceivable, with these then being connected to the luminaire housing by means of a force fit, material fit and / or form fit.
- the lamp housing itself is preferably made from sheet metal, in particular in a deep-drawing process.
- the housing wall can preferably have, on its side facing away from the housing base, a circumferential edge which ends in a circumferential, closed edge section lying in one plane. This measure helps to stabilize the
- the plane of the edge section can extend essentially parallel to the housing base, in particular the
- Edge portion is directed laterally outward from the luminaire space.
- Fig. 1 is a perspective view of a lamp with a
- FIG. 2 shows a further perspective view of the lamp according to FIG. 1 from above;
- FIG. 3 shows a view of the lamp corresponding to FIG. 1, wherein
- FIGS. 12 to 14 are views of a second variant of a cover for the lighting means used in the lamp;
- 15 and 16 are views of a component for bridging the sealing structures surrounding the receiving areas of the lamp housing;
- the lamp according to the invention which is explained in more detail below and is provided with the reference number 1 in the figures, is intended, as already mentioned, to form a so-called highbay lamp which, as a compact but powerful lamp, is suitable for use as a hall lamp, for example.
- a so-called highbay lamp which, as a compact but powerful lamp, is suitable for use as a hall lamp, for example.
- WO 2014/086770 A1 of the applicant described lamp is therefore provided to arrange the lamp 1 according to the invention shown here at a relatively large distance from the floor, whereby light with high intensity is to be generated, which is then radiated onto the area below - for example a hall .
- Components corresponds accordingly to the arrangement as it is also provided in the luminaire of WO 2014/086770 A1.
- the inventive concept can, however, also be applied to other lamp shapes, as will be explained at a later point in time.
- the essential components of the luminaire 1 according to the invention are a trough-shaped luminaire housing 10 and a holding element 50 attached to the luminaire housing 10, which optionally together with optical covers 70 and 80 encloses areas of the housing 10 in which electronic components of the luminaire 1 are arranged for generating light.
- the luminaire according to the invention is also divided into three areas, a central area running centrally along a longitudinal direction, which is used to accommodate an operating device, and two light-emitting areas formed on both sides of the central area in which the illuminants as well as the optical components assigned to the lighting means for the light output are arranged. In the view according to FIG. 1, light is emitted via two im
- the lamp 1 can be suspended or mounted with the aid of brackets 150 which are connected to the housing 10 on the two end faces of the central area on the rear side thereof.
- the brackets 150 are designed here in such a way that they enable suspension elements to be suspended or attached.
- other mounting solutions for the lamp 1 would also be conceivable.
- the luminaire housing 10 is trough-shaped with an approximately square housing base 11 in the illustrated embodiment, from which a laterally circumferential housing wall 12 extends downward or in the direction of the light emitting beam of the luminaire 1 , with housing bottom 11 and housing wall 12 one
- the housing 10 is preferably made of sheet metal and is manufactured using a deep-drawing process, so that it can be manufactured simply and inexpensively.
- the structural elements of the housing 10, which are described in more detail below, can therefore be used in a relatively simple manner in a single Work step to be formed; a punching step may be required before or after deep drawing in order to form the through openings and further openings described in more detail below.
- the primary task of the housing bottom 11 is to accommodate a flat surface
- the housing 10 is designed in such a way that the housing base 11 forms three essentially flat areas on its side facing the interior of the housing 10, a central flat area 20 and two lateral flat areas 25.
- the central area 20 is here for receiving a can be seen in FIG.
- Operating device 120 provided for example in the form of a converter. In terms of its width, it is essentially matched to the width of the operating device 120 and is accordingly somewhat narrower than the two lateral receiving areas 25. All three areas 20 and 25 are designed as defined depressions in the base 11 of the housing 10.
- the two lateral receiving areas 25 each serve to support one or more LED boards 130, each of which forms a large-area light source.
- the illustration according to Figure 3 is only on the left side
- All three receiving areas 20 and 25 are designed to be planar, apart from the depressions described below, in order to enable either the operating device 120 or the LED boards 130 to be supported over a large area. This enables the heat to be transferred to the housing base 11 during operation, thereby improving the cooling of the lamp components 120, 130 and the dissipation of heat.
- Luminaire housing 10 can then be made, for example, with the aid of a screw connection, for this purpose the housing base 11 in the receiving areas 20 and 25 with knobs or knobs protruding outward with respect to the luminaire space.
- Blind hole structures 27 is formed. These blind lock structures 27 are also created as part of the deep-drawing of the lamp housing 10 and enable their threads to be cut into the corresponding sheet metal material of the blind hole structure when the screws 135 are screwed in, and thus secure fastening is achieved without the housing base 11 being caused by the screw 135 is penetrated.
- This solution is advantageous insofar as it allows the housing base 11 to be sealed in the area of the fastening of the lamp components 120, 130. In principle, however, it would also be conceivable to subsequently weld or solder corresponding blind hole structures to the housing base 11. Pressing in a corresponding component, which then enables the lamp components 120, 130 to be screwed to the housing 10, would also be conceivable, whereby in all cases a solution is preferably sought that enables the lamp interior to be sealed to the outside in these areas.
- Only the central receiving area 20 additionally has a somewhat larger opening 26 on one end face, through which a
- Power supply cable for supplying power to the operating device 120 is made possible.
- Sealing measures e.g. provided in the form of a grommet 140, which enable the sealed out lead-out of the power supply cable - not shown in detail - so that all three receiving areas 20 and 25 are sealed towards the rear in the assembled state of the lamp 1.
- An essential property of the lamp 1 according to the invention is also that the operating device 120 and the LED lighting means 130 are not arranged together in a single, tightly enclosed space, but instead are formed in each case corresponding to the flat receiving areas 20 and 25, each of which are closed in a sealed manner and accommodate either the converter 120 or the LED lighting means 130.
- the separate arrangement of these lighting components 120, 130 in three separate rooms opens up the possibility of thermally decoupling the areas from one another on the one hand and allowing cooling air to flow through in the spaces between two adjacent receiving rooms on the other.
- Through openings 30 are formed so that cooling air can flow along both sides of the central receiving area 20 for the operating device 120 as well as the receiving areas 25 for the LED lighting means 130.
- Through openings 30 are in each case closed by a circumferential Edge that extends transversely to the section of the
- Light housing 10 extends.
- the through openings 30, which of course could also be designed differently with regard to their length and possibly shape, also cause a material reduction in the area between the central receiving area 20 and the lateral receiving areas 25, so that there is a certain thermal decoupling and the risk is reduced. that, for example, the heat generated by the LED lighting means 130 is transferred to the area 20 with the operating device 120.
- each receiving area is surrounded in a ring-like manner by a wave-like sealing structure 35 which forms a circumferential groove or recess 36 in which the seal 40 is received.
- the recess 36 thus forms a circumferential channel into which the sealing material can be introduced in a simple manner.
- This can be, for example, a corresponding PU foam that can be automatically injected into the recess 36 during the production of the lamp 1. It is advantageous if the corresponding ring-like depressions 36 all extend within the same plane, since this results in the automated
- the wave-like cross-sectional shape prevents the from flowing away
- sealing material which collects at the deep point of the wave-like sealing structure 35 and will harden slightly here accordingly.
- other sealing materials or foams could also be used to realize the seal 40.
- a strand of a corresponding sealing material could be inserted into the
- depressions 36 are inserted.
- structural sealing materials would also be conceivable, in which case the illustrated wave-like sealing structure 35 could also be dispensed with.
- formation of a simple circumferential groove for receiving the sealing material would be conceivable.
- the wave-like structure also has the further advantage that it leads to an additional increase in the stability of the tub body.
- Channel sections which run transversely to the sealing structures 35 and interrupt them locally can then be used, starting from the operating device 120, to lead the lines or cables required to power the LEDs 130 into the adjacent area 25, a particularly preferred one
- this consists of four side wall areas 13 extending from the housing base 11, which are designed in the context of the deep-drawing process in such a way that they widen away from the housing base 11 and thus in the form of a funnel in the beam direction of the lamp 1.
- the deep-drawing process advantageously leads to the side wall regions 13 merging into one another in one piece at the corners of the housing 10 and thus no further ones
- Light housing 10 facilitate.
- the circumferential housing wall 12 has a circumferential edge 16 protruding horizontally outward at its edge area. This edge 16 runs in one Plane that is aligned parallel to the plane of the housing bottom 11, and also gives the lamp 1 an overall more harmonious appearance.
- the luminaire housing 10 thus fulfills numerous important functions of the luminaire 1 and, despite everything, can be produced in a simple and inexpensive manner.
- the housing 10 provides the seals 40 surrounding these three areas 20 and 25, but it is necessary that the areas 20, 25 are covered accordingly to protect the lighting components 120, 130 from external influences, in particular from dust and / or moisture to protect.
- the holding element 50 responsible for this task is the already mentioned holding element provided with the reference numeral 50, which is shown in isolation in FIGS. 6 and 7 and which, in the assembled state, interacts with the lamp housing 10 in accordance with the sectional illustration of FIG.
- the holding element 50 itself only interacts directly with the seal 40 surrounding the central receiving area 20 for the lamp operating device 120, whereas the receiving areas 25 for the LED lamps 130 are sealed by optics or transparent covers, which are described in more detail below however, are supported by the holding element 50 in such a way that they interact in a sealing manner with the corresponding circumferential seals 40.
- the holding element 50 initially consists of a circumferential frame 51 which roughly corresponds to the shape of the lamp housing 10 and is therefore square, which is spanned by an approximately hood-like cover 52 in the middle area.
- This dome-like or hood-like cover 52 protrudes slightly compared to the plane of the underside (corresponding to the mounted orientation shown in FIG. 8) of the frame 51, so that it forms a somewhat recessed receiving space A or a chamber, as in the sectional view of FIG 8 can be found.
- the height and also the width of the cover 52 can of course be adapted as required to the dimensions of the operating device 120 and, if necessary, further electrical or electronic operating components for operating the LED lighting means 130 which are to be positioned in the area of the operating device 120.
- the use of an additional carrier would also be conceivable so that the components accommodated in this area can be stored in several levels. Ideally, however, in the assembled state, the underside of the cover 52 should not extend over the plane of the circumferential edge 16 of the Housing 10 protrude. In order to increase the height of the receiving space A for the operating device 120, it is additionally provided in the illustrated embodiment that the plane of the central receiving area 20 is set back slightly compared to the two lateral receiving areas 25. This can also be taken into account in the context of deep drawing during the manufacture of the housing 10.
- the hood-like cover 52 on its area facing the housing base 11 has a circumferentially closed edge 53 or an edge which, when the retaining element 50 is mounted on the lamp housing 10, contacts the seal 40, in particular - as shown - into the flexible one Material of the seal 40 is immersed.
- the central receiving space A is completely sealed together by the housing 10 and the holding element 50, so that the operating device 130 is safely and reliably protected from external influences.
- the fastening of the holding element 50 to the housing 10 takes place here via a plurality of screw connections, preferably in the
- Holding element 50 manufactured by injection molding has corresponding openings 55 or cylinder-like reinforcements with openings which correspond to bores 31 in the housing base 11 of the lamp housing 10.
- the bores 31 of the lamp housing 10 are in each case outside of the areas 20 and 25 to be sealed, which is why simple bores or openings that completely penetrate the housing base 11 can actually be used here.
- the bores 31 could again be provided on their rear side with the blind hole structures already explained above. Furthermore, on the
- Holding element 50 also other through openings or latching structures for preferably releasable attachment to the light housing 10 can be provided optionally by means of separate attachment means, such as screws.
- a sealing corresponding to the previously described interaction between the cover 52 and the seal 40 is also provided for the two receiving areas 25 for the LED lighting means 130, which is shown in FIG.
- the holding element 50 itself does not come into direct contact with the seals 40, but this function is fulfilled by a transparent cover 70 or 80, respectively.
- These covers 70, 80 are formed in the area of the hood-like cover 52 on both sides
- Openings 56 of the frame 51 which ultimately form the Li chtab beam openings of the frame-like holding element 50, and are received by the
- FIG. 8 shows two different variants of the transparent covers 70, 80, which are each shown individually in FIGS. 9 to 11 and 12 to 14, respectively. In both cases, the cover also serves to influence the light emitted by the LEDs or the
- hood-like or dome-like cover 70 and 80 it is provided that this has a flat light-emitting area 71, 81 which is circumferentially surrounded by a U-shaped edge 72, 82, the one leg that tapers towards the seal 40 73, 83, one connecting leg extending transversely thereto and one connecting leg with the rest of the
- Cover 70, 80 has connecting inner legs, the U-shape on the one hand increasing the stability of the cover 70, 80 and on the other hand the outer leg 73, 83 is directed upwards and forms a circumferential sealing edge 74, 84 in one plane.
- the function of this sealing edge 74, 84 is comparable to the edge 53 of the cover 52. That is, in the assembled state, the edge 74 or 84 dips into the circumferential seal 40 on the housing base 11 of the lamp housing 10 and thereby completely encloses the corresponding receiving area 25 for the LED lighting means 130. In this case too, a completely sealing system is thus achieved
- the holding or positioning of the cover 70 or 80 required for this is realized by the holding element 50, which has an inwardly protruding support edge 57 or a support web surrounding the two openings 56.
- the covers 70 and 80 then rest with their lower edge of the U-shaped edge 72 floating on the support edge 57, the dimensions of the holding element 50 being selected to ensure that the Cover 70 or 80 actually cooperates with the respective seal 40 in a sealing manner.
- the support edge 57 extends here in a plane transversely or orthogonally to a pressing direction for pressing the cover 70, 80 into contact with the seal 40.
- support or support areas formed in sections could also be provided, which then distributed, preferably evenly distributed on the circumference of the openings 56 are arranged.
- Cover 70 or 80 not rigid with the holding element 50 or the
- Luminaire housing 10 connected. Instead, when installing the lamp 1, only the cover 70 or 80 is correspondingly inserted into the holding element 50 and this is then screwed to the lamp housing 10 in the manner described above.
- the two variants of the cover 70 and 80 shown in FIGS. 9 to 14 differ primarily with regard to the mounting of further optical elements that are provided for influencing the light emitted by the LED lighting means 130.
- a lens 90 is used for each LED or LED cluster of the lighting means 130, the LED or the associated LED cluster then being inserted into the one formed on the upper side of the lens 90
- Recess 91 engages.
- This arrangement of the lens 90 with respect to the associated LED and the design of the lens 90 ensure that the light emitted by the LEDs in almost all directions is influenced in the desired manner and used for efficient light emission.
- the lenses 90 are an integral part of the cover 70 and are correspondingly integrally formed on the rear side thereof.
- the cover 70 is then preferably made entirely of the same light-permeable material, although those would also be conceivable
- Constituents through which light passes or which are intended to influence the light are to be formed from a different material than the rest of the cover 70.
- FIGS. 12 to 14 represents a particularly preferred embodiment for the cover 80, since the cover 80 now serves to additionally support a separate component 88 which contains the lenses 90.
- the cover 80 has on the light exit side
- the opposite rear side has two circumferential webs 85 and 86, the web 85 with its upper edge forming an annular support surface for the lens plate 88 and the slightly higher circumferential web 86 laterally the plate 88 with a small Game embraces.
- the advantage of this solution is that the lens plate 88 can easily move to the side compared to the cover 80 or slight displacements are possible. This opens up the possibility that the sealing edge 84 of the cover 80 is permanently in contact with the seal 40 and, in spite of everything, the lens plate 88 can optionally move along with the LEDs.
- Housing bottom 11 of the lamp housing 10 can be appropriate for this
- Bulges 28 may be provided, the insertion of a corresponding
- FIGS. 12 to 14 represents, as already mentioned, a particularly preferred embodiment for designing the cover 80 and the associated optical system for influencing the light output.
- Another advantage of the mechanical decoupling between cover 80 and optics 88 is that that the optics and the underlying LED boards 130 are less prone to impact and thus damage due to vibrations - e.g. when transporting the lamp 1 - can be avoided.
- the optics can have optical materials such as scattering particles or conversion particles, optical structures such as a roughened surface, and / or optical elements such as lenses or a lens array.
- the choice of material can also be adapted to the desired light output, with a choice of material influencing the color tone or the color temperature of the light output being particularly conceivable.
- the cover 70, 80 in such a way that it is an integral part of the holding element 50.
- a further separate lens plate 88 is provided for influencing the light, as in the variant in FIGS. 12 to 14, the advantage can be achieved that, on the one hand, the receiving space B or the chamber for the LED lamps 130 is sealingly enclosed and on the other hand the lenses 90 are correctly positioned with respect to the LEDs.
- the sealing material 40 is glued to the corresponding edges 53, 74 or 84, whereby the sealing effect can optionally be additionally increased. In this case, however, a later opening of the lamp 1 is e.g. for maintenance purposes only possible by destroying the seal.
- Another function of the holding element is that this one
- the holding element 50 has the
- Through-openings 30 of the housing 10 have corresponding openings 60 which are each enclosed by circumferential webs 61. These webs 61 are in
- the webs 61 can delimit the through openings 30 of the lamp housing 10 laterally on the inside or outside and, in a preferred embodiment, rest against them. In this way, a corresponding splash guard can be provided so that no splash water gets into the space between holding element 50 and cover 70 or 80, which would be disadvantageous in particular in the area of seal 40.
- corresponding holes can be provided in the holding element 50, through which holes water can run off from this limited space.
- the thermal passage openings 30 can also be bent all the way around inwards or outwards, as can be seen in FIG. On the one hand, this in turn promotes the stability of the entire component, i.e. the housing 10. On the other hand, the edges of the thermal passage openings 30, which are bent over towards the holding element 50, with the above-described webs 61 of the holding element 50, can form a preferably continuous and closed-edge cooling air channel.
- the funnel-like downward widening side walls 13 of the luminaire housing 10 form an air inflow area laterally below the adjacent through openings 30 and thus contribute to the formation of an air inflow area that widens away from the illuminants 130, so that despite the in relation to the overall height Luminaire 1 enables an efficient flow of cooling air through a large area.
- the heat occurring during the operation of the lamp 1 can be efficiently dissipated by these air currents - indicated schematically in FIG. 8 by arrows.
- the receiving areas 25 for the LED lighting means - like the central receiving area 20 - are designed in a trough-like manner towards the rear of the housing 10.
- the cooling air channels extending to the side of this recess now ensure that the rearward protruding
- the receiving area 25 for the lighting means 130 can be flown against by the resulting air flow, in order to thus for example continuously avoid dust deposits on the back of the lamp 1.
- the holding element 50 is preferably designed as a one-piece plastic part and is in particular produced in the context of an injection molding process.
- a two-component injection molding process can then also be used if necessary.
- the use of a chemically resistant material is preferably provided for at least the cover 52 in order to be able to protect the lighting components arranged in the room A as well as possible.
- the wave-like seal structures 35 surrounding the respective receiving areas 20 and 25, which form the circumferential depressions 36 for receiving the seals 40, open at one end of the receiving areas 20, 25 through a transverse opening towards the interior of the luminaire Channel section 37 are interrupted, the channel section 37 connecting the two receiving areas 20, 25 to one another or two receiving areas 20, 25 to be connected to one another sharing a channel section 37.
- this transverse depression forming the channel section is provided with the reference numeral 37, wherein in a first variant it would be conceivable that a supply cable is routed in this depression 37 from one receiving area 20 to the adjacent receiving area 25 and then through the seal 40 is covered.
- This measure requires that the supply cable is laid in a suitable manner before the seal 40 is applied in the luminaire housing 10, which in principle would be possible, but off
- a channel-forming component 100 is used, which is shown in FIGS. 15 and 16.
- This component 100 which is preferably made from a plastic injection-molded part, has, in particular, an elongated hollow cylinder 101, which has side walls 102 pointing outward at its two front ends. Furthermore, in the central region of the cylinder 101 there are two opposite one another
- Latching arms 103 are provided, which secure the component 100 to the
- Enable lamp housing 10 These structural sections 102, 103 thus interact with corresponding structural sections of the luminaire housing 10 in order to mechanically connect the channel-forming component 100 to the luminaire housing 10; they extend along the sealing structure 35 in order to be in flat contact with the
- Seal 40 to stand and promote a distribution of the sealing material applied in liquid form to the sealing structure 35 into the channel from section 37, as will be explained below.
- channel-forming component 100 The function of the channel-forming component 100 can be seen on the basis of FIGS. 17 to 19, which show in individual steps how according to the preferred one
- two adjacent receiving areas 20, 25 are sealed and, despite everything, it is ensured that these are connected to one another by a transverse channel in such a way that a supply cable can subsequently be passed through.
- FIG. 17 shows an initial state in which neither the channel-forming component nor the seal have already been introduced into the luminaire housing 10. Only the two receiving areas 20 and 25 can be seen, which are enclosed in a ring-like manner by the wave-like sealing structures 35, although the above-mentioned transverse channel section 37 interrupts both ring-like structures in order to connect the two receiving areas 20 and 25 to one another.
- the channel-forming component 100 is now inserted into the channel section 37 so that the hollow cylinder 101 runs within the channel section 37 and with its ends into the two
- Receiving areas 20 and 25 opens. A positionally accurate locking of the channel-forming component 100 in this position is achieved with the aid of the two locking arms 103, which engage in corresponding locking structures of the lamp housing 10.
- the side walls 102 of the channel-forming component 100 each correspond to the inner walls of the ring-like recess 36 for later use Continue recording the seal.
- the channel-forming component 100 is then at least partially sealingly surrounded by the seal 40 in the area of or along the sealing structure 35.
- the sealing material can be applied completely covering the hollow cylinder 101 of the channel-forming component 100, so that the holding of the channel-forming component 100 on the housing 10 is additionally improved as a result. Possibly. could thus dispense with the locking arms 103 or another type of fastening for this component 100, e.g. glue, be chosen. In this case, all ring-like seals 40 are then on the
- Material 41 covering the duct section is integrally connected to one another, which in turn is facilitated by the fact that all sealing structures 35 are located in one plane, as explained above.
- the additional material 41 also fills the channel from section 37 completely and accordingly also contributes to sealing. It is crucial that ultimately - as can be seen in Figure 19 - both receiving areas 20, 25 of the lamp housing 10 are completely ring-like surrounded by a seal 40 and can accordingly interact in the manner described above with the holding element 50 or the cover 70 or 80 to achieve the To enclose receiving spaces A and B each sealingly. However, both areas A and B are then connected to one another via the hollow cylinder 101 of the channel-forming component 100 in such a way that a supply cable can still be passed through even after the sealing material 40 has been applied. Again, the assembly of the luminaire 1 is thereby made easier overall, with the luminaire components 120, 130 being reliably and securely protected from external influences in spite of everything. In this case, a corresponding connection could also be created between the two receiving spaces B for the lighting means 130 with the aid of the component 100, provided that a cable connection is selected
- the measures described thus contribute overall to the creation of a luminaire which, as desired, is able to generate and emit light with high intensity, although the associated material and Installation effort is significantly reduced compared to previously known solutions.
- the luminaire according to the present invention is thus not only characterized by its advantageous properties already described with regard to the light emission properties, the
- the concept according to the invention can easily be extended to other shapes or sizes for the lamp.
- the luminaire variant 200 shown in FIGS. 20 and 21 represents a duplication of the concept described in the previous figures, with only the housing 201 having to be made available in the extended form, although identically designed holding elements 50 can be used, whereby now two holding elements 50 are used arranged one behind the other in the longitudinal direction.
- the lamp 200 only has a single sealed connection for has an external power supply cable. This requires that the two receiving areas for the operating devices must in turn be connected to one another in such a way that a connection cable can be laid. Accordingly, the use of a recess 205 together with the channel-forming component 100 explained with reference to FIGS. 15 to 19, which connects the two areas of the luminaire 200 located one behind the other in the longitudinal direction, is again preferred to connect these two areas.
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019112691.6A DE102019112691A1 (de) | 2019-05-15 | 2019-05-15 | Leuchte mit Kühlluftkanälen |
| PCT/EP2020/051237 WO2020228994A1 (de) | 2019-05-15 | 2020-01-20 | Leuchte mit kühlluftkanälen |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3969807A1 true EP3969807A1 (de) | 2022-03-23 |
| EP3969807B1 EP3969807B1 (de) | 2024-08-21 |
| EP3969807C0 EP3969807C0 (de) | 2024-08-21 |
Family
ID=69326493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20702233.6A Active EP3969807B1 (de) | 2019-05-15 | 2020-01-20 | Leuchte mit kühlluftkanälen |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3969807B1 (de) |
| AT (1) | AT17570U1 (de) |
| DE (1) | DE102019112691A1 (de) |
| WO (1) | WO2020228994A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201006367A (en) * | 2008-07-24 | 2010-02-01 | Jun-Guang Luo | Heat-dissipating device and heat-dissipating method |
| TWM392298U (en) * | 2010-05-20 | 2010-11-11 | Leader Trend Technology Corp | LED lamp capable of being easily assembled and fastened |
| WO2011157836A1 (en) * | 2010-06-18 | 2011-12-22 | Lemnis Lighting Patent Holding B.V. | Luminaire, heat dissipation structure and street lighting device |
| DE102011081369A1 (de) * | 2011-08-23 | 2013-02-28 | Trilux Gmbh & Co. Kg | Leuchte, insbesondere LED-Leuchte mit passiver Kühlung |
| USD674949S1 (en) * | 2011-11-03 | 2013-01-22 | Georgitsis Anthony C | Lighting system |
| DE102012222184B4 (de) * | 2012-12-04 | 2025-08-14 | Zumtobel Lighting Gmbh | Leuchte mit Luftleitflächen |
| US10767849B2 (en) * | 2016-04-25 | 2020-09-08 | Shat-R-Shield, Inc. | LED luminaire |
| DE202016105048U1 (de) * | 2016-09-12 | 2016-10-03 | Ridi Leuchten Gmbh | Leuchte |
| CN109140325A (zh) * | 2018-09-28 | 2019-01-04 | 岳池县临溪小学校 | 一种教室用照明组件 |
-
2019
- 2019-05-15 DE DE102019112691.6A patent/DE102019112691A1/de active Pending
- 2019-08-05 AT ATGM50143/2019U patent/AT17570U1/de not_active IP Right Cessation
-
2020
- 2020-01-20 WO PCT/EP2020/051237 patent/WO2020228994A1/de not_active Ceased
- 2020-01-20 EP EP20702233.6A patent/EP3969807B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020228994A1 (de) | 2020-11-19 |
| EP3969807B1 (de) | 2024-08-21 |
| DE102019112691A1 (de) | 2020-11-19 |
| EP3969807C0 (de) | 2024-08-21 |
| AT17570U1 (de) | 2022-07-15 |
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