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
  • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
• • 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
• • 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
  • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
• • 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
  • F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
• • 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

• a heat sink with a horizontal base plate is known from which extend upwards, a plurality of plate-shaped cooling fins.
• the surface of the heat sink is particularly large, whereby an effective heat transfer from the heat sink to the surrounding air is possible.
• the heat sink can be characterized by the fact that it does not have a plurality of cooling fins, in contrast to the prior art, under significantly reduced
• Heat output is obstructed, still allows effective heat dissipation over the second segment.
• the second segment can continue to be formed a spacer.
• this can be in the case of a recessed luminaire, the one
• the heat sink is designed such that, viewed in the section, a material strength of the first segment, starting from the middle region to the right and / or to the left and / or a material thickness of the second segment, starting from the central region is reduced upwards.
• the material requirement of the heat sink can be further reduced. It is sufficient with respect to an effective heat dissipation in the corresponding outer regions of a reduced material thickness, so that this material saving is possible, at least without significant impairment of heat dissipation.
• a particularly effective heat dissipation is made possible if the surface area points upward in an orientation intended for operation of the luminaire, forming an outwardly facing surface of the luminaire.
• Fig. 3 is a schematic, perspective view of the heat sink with other lighting components
• Fig. 4 is a schematic sectional view of a lamp with the
• At least substantially is expressed that an angle W between the plane S2, which is defined by the second segment 4, on the one hand and that other plane SI, which is defined by the first segment 2, on the other hand, about 90 ° is, for example, between 80 ° and 100 °.
• the second segment 4 extends by a "height" or by a vertical extent F.
• the "fin” can, however, also be required take other forms. This can be the case, for example
• the heat sink is designed such that, viewed in a vertical section through the first segment 2 and the second segment 4, with the exception of the second segment 4, it has no part which is above a level N which lies through half of the vertical extension V, preferably by a quarter of
• the first segment 2 elements for mounting further components of the lamp may be, for example, at least one groove 16.
• the further components can be at least one LED 22, which is preferably arranged on a circuit board 20, the circuit board 20 being good thermally conductive, for example via a layer of thermal compound, with the
• Heat sink is contacted.
• a particularly effective radiation for heat dissipation is made possible if the corresponding surfaces of the heat sink are comparatively large. For example, it can be provided that viewed in the said vertical section, the
• the lighting module arrangement - as shown in FIG. 3 - has a plurality of LEDs 22 which are arranged on the first segment 2 along a straight line G which is in the (S2 in Fig. 2) designated level S2 runs, which is determined by the shape of the second segment 4. Therefore, the heat sink or the light module assembly is particularly suitable for the case that a plurality of LEDs arranged along a line are provided as the light source.
• Two further grooves 166 may be provided on the underside of the first segment 2, which serve to hold locking elements 180, which hold the board 20 upwardly pressing against the underside of the first segment 2.
• Well bottom 302 provided a through hole into which the heat sink and the light module assembly is used, and preferably such that is covered or closed by the heat sink, in particular by the first segment 2, the through hole and the second segment 4 with respect to the Luminaire housing 30 protrudes outward.
• the passage opening can take, for example, between 25% and 75% of that area which is defined by the edge of the trough bottom 302.
• the heat sink may further comprise holding elements 28, the arrangement for releasably holding the heat sink or the light module arrangement in the
• Installation space is installed, which is too low.

Landscapes

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

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=44674807

Family Applications (1)

Country Status (4)

Citations (2)

Family Cites Families (5)

• 2010
  • 2010-09-27 DE DE102010041470A patent/DE102010041470A1/de not_active Withdrawn
• 2011
  • 2011-09-26 CN CN201180046009.0A patent/CN103119352B/zh not_active Expired - Fee Related
  • 2011-09-26 EP EP11760493.4A patent/EP2622258B1/de not_active Not-in-force
  • 2011-09-26 WO PCT/EP2011/066638 patent/WO2012041797A1/de active Application Filing

Patent Citations (2)

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