EP2256404A1 - Agencement d'émission de lumière doté d'éléments d'éclairage - Google Patents

Agencement d'émission de lumière doté d'éléments d'éclairage Download PDF

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Publication number
EP2256404A1
EP2256404A1 EP10163796A EP10163796A EP2256404A1 EP 2256404 A1 EP2256404 A1 EP 2256404A1 EP 10163796 A EP10163796 A EP 10163796A EP 10163796 A EP10163796 A EP 10163796A EP 2256404 A1 EP2256404 A1 EP 2256404A1
Authority
EP
European Patent Office
Prior art keywords
arrangement
heating
cooling
light
heat
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
Application number
EP10163796A
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German (de)
English (en)
Other versions
EP2256404B1 (fr
Inventor
Alfons Eberle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2256404A1 publication Critical patent/EP2256404A1/fr
Application granted granted Critical
Publication of EP2256404B1 publication Critical patent/EP2256404B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/56—Cooling arrangements using liquid coolants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/002—Central heating systems using heat accumulated in storage masses water heating 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
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/006—General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
    • 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]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/16—Waste heat

Definitions

  • the present invention relates to an arrangement for emitting light with luminous elements, in particular LEDs, and a cooling system coupled to the luminous elements.
  • the generated heat can be conducted away from the heat source mainly only by heat conduction. Most of the heat is from a heat sink that is thermally connected to the LED array coupled and often should be best invisible, more or less radiated into the environment.
  • a small, flat and compact design often obstructs the required spatial oversizing of heat sinks taking into account safety factors. In addition, it may happen that the heat is distributed only indirectly or uncontrolled in the room.
  • an arrangement for emitting light with luminous elements is provided, in particular LEDs, and a thermally with at least one lighting element coupled cooling system.
  • the arrangement for emitting light and the cooling system are designed such that the waste heat of the lighting elements of an arrangement for space heating and / or for the preparation of hot water is available or is provided.
  • the cooling system being suitably thermally coupled to the LED and, for example, an array of channels, cooling channels or cooling coils passing through the LED array for heat dissipation (taking into account the type of luminaire arrangement and the size of LEDs or LED arrays used), this becomes a reliable possibility the provision of the heat loss for use in a space heating arrangement allows.
  • the heat dissipation can also be done in a conventional manner on the circuit board or board via metallizations and flanged heat sink having liquid channels or pipes or are thermally connected to corresponding lines of the cooling system and pull through the arrangement for light output.
  • the PCB which carries the LEDs and has to accomplish extensive tasks, is relieved of their high thermal responsibility for the arrangement with lighting elements and simplified in their manufacture.
  • the particularly good cooling by circulating cooling media makes it possible to increase the achievable light fluxes per unit area considerably, while maintaining the usual reliability and safety deductions.
  • the above LED arrangement thus has in every respect a high availability and operational capability and can be produced cheaply and easily with a large radiation power.
  • the LED unit is remarkably dissipated by the LED unit, possibly very high power dissipation in the thermal spectral range and kept away from other assemblies such as the light exit element or optics, especially when alternative optics are used with flexible materials who prefer lower temperatures.
  • High light outputs can be safely provided, transmitted and effectively controlled, e.g. dimmed.
  • the operation of the array of luminescent elements by the cooling system can be improved so that a synergistic effect across multiple system levels occurs in optimizing the overall energy balance.
  • the arrangement of the lighting elements in the energy cycle of the building as an active component is integrated harmoniously into an overall system for a pleasant room climate.
  • an air conditioner would have to work against the thermal power dissipated by the lighting elements.
  • the light source in particular each individual LED, is kept well-tempered in the optimum working range.
  • the waste heat can be used particularly advantageously for space heating, for hot water treatment, for process water or sanitary purposes.
  • the present arrangement for emitting light is characterized in that the cooling system has at least one heat exchanger or a pressure exchanger and is configured such that the heat exchanger or pressure exchanger is coupled to a coolant circuit and a hot water circuit.
  • the heat exchanger in a conventional manner, a unit to understand in which two separate circuits are thermally coupled, for example, an array of co-axial or coaxial pipes. Thermal energy changes from one circle to the other, in an effort to create a thermal equilibrium.
  • the heat exchangers can also be embodied as two ends of cooling bodies which correspond to one another and which are interlaced or cohesively abutting one another, which in turn have coolant channels through which coolant flows. The distance between the engaged ends of the heat sink can be varied, between them there may be a coolant (variant coupling).
  • pressures are transferred from one fluid to another.
  • the pressure prevailing in the cooling circuit pressure in the heat cycle can be transmitted.
  • the arrangement for emitting light according to the second aspect is characterized in that the coolant circuit comprises a coolant and is configured such that the coolant between at least one arrangement for emitting light and the heat exchanger is movable.
  • the heat-carrying agent or the cooling liquid is transported by the temperature differences between the source and sink and by gravity in a circle.
  • Water, oil, special liquid or condensed coolants, mixtures or hydrocarbons are typically used as the cooling liquid.
  • a gaseous coolant such as CO 2 can be used or a plasma such as air.
  • the arrangement for emitting light according to the second to third aspects is characterized in that the cooling circuit comprises a pump for the coolant.
  • the pump thus drives the coolant through the cooling circuit and can determine the degree of cooling at the feed points of the heat loss from the LEDs arrangement on the regulation of the flow rate.
  • the arrangement for emitting light characterized in that the hot water circuit is part of a heating system with a circulating hot or hot water, wherein the heating system at least one arrangement for space heating for heat dissipation, in particular a radiator, having.
  • the heating system at least one arrangement for space heating for heat dissipation, in particular a radiator, having.
  • a heating system it makes sense to integrate the LED array in a heating or cooling system for the room temperature and provide convectors in a conventional manner to direct the heat directed, defined and controlled by the LED elements and later or deliver elsewhere in the desired manner.
  • the arrangement for emitting light according to the second to fifth aspect characterized in that the heat exchanger has a hot water flow for the removal of hot water and a service water flow is provided.
  • the heat exchanger can be constructed by a plurality of circuits or chambers, so that the waste heat of the LED array for hot water treatment or the heating of process water can be used.
  • the arrangement for emitting light characterized in that the heating system or arrangement for space heating in combination with a floor heating, ceiling heating or air conditioning is formed.
  • the heating system in which the LED array is integrated as a heat source, instead of radiators, which are typically mounted under a sill also, another type of heat dissipation or a mixture of different types may be provided, depending on local conditions.
  • a radiator can be realized in a soil in which cooling fins are attached to pipes that emit the heat areally.
  • the arrangement for emitting light according to the seventh aspect is characterized in that the cooling system consists of a cooling circuit with a coolant and a heat sink having a space heating arrangement, in particular a radiator or heat exchanger having a surface profiling or cooling fins.
  • the thermal coupling of the LEDs is provided with a space heater in the broadest sense.
  • Fig. 1 an arrangement for emitting light 10 with light elements, in particular LEDs 1, according to the embodiment of the present invention is shown from the side, which is coupled to a cooling system 100.
  • Fig. 1 shown as a surface light or large-scale lighting arrangement, more surface lights 10a and 10b as the nearest neighbors.
  • the illuminating assemblies 10, 10a and 10b may be a portion of a large light-emitting assembly, such as a sequential array of dimmable elements that form a luminous ceiling of LED tiles in a department store.
  • the arrangements 10, 10a and 10b are connected to each other via connections, for example via flexible and detachable means such as pipes 33, 33a and 33b, connected in series in the present case.
  • the area lights and the connections are part of the cooling circuit 30.
  • a liquid or gaseous coolant is located in the pipes 33 ff.
  • the movement of the coolant within the cooling circuit 30 is shown by the arrows on the interconnections of the assemblies 10, 10a and 10b.
  • the arrow end lying above point 34 is upstream with respect to the tip 34.
  • the movement of the coolant takes place along the direction of the arrow through the cooling circuit 30.
  • the coolant temperature is at a point upstream, say at point 34, from a point downstream, say at point 34b, behind the assembly 10b is lower.
  • the coolant downstream has already flowed through more area lights or lighting elements and added more heat loss, the temperature of the coolant downstream is correspondingly higher than upstream.
  • the area lights can also be supplied via a common feed, so be connected in parallel.
  • the arrangements 10, 10a and 10b can therefore also be arranged in a network. The above may become relevant if, in a modification of one of the above assumptions, there are different area lights, different or different levels of heat loss are generated. For example, if the in Fig. 1 left-handed arrangement 10 gives off much heat loss, the other two area lights 10a, 10b but give little heat loss, either a parallel circuit can be displayed, that is, all arrangements for light output are fed from a supply split, or may be provided, first or upstream to arrange the surface lights 10a and 10b with the low heat loss and then let the assembly 10 follow.
  • a heat exchanger 20 is arranged in the cooling circuit 30.
  • the heat exchanger 20 is constructed by a boiler or hot water storage tank shown in simplified form as a cylinder.
  • the heat exchanger is required for the heat exchange liquid, here to be heated water as a medium ready, which belongs to the target circuit or the hot water circuit 40.
  • the cooling circuit 30 extends in or through the heat exchanger 20, a coil 35.
  • the coil 35 can be a kind of stack of folded or as an electrical coil winding or mechanical spring (both incidentally inductive energy storage) thread-like radially rising tubes with preferably extended surface be additional fins for heat exchange.
  • the coil 35 is surrounded by the medium of the hot water circuit 40, or immersed in the medium.
  • a general pump 32 is installed for a circulation of the cooling medium in the cooling circuit 30, an apparatus for conveying fluid media.
  • the pump 32 can be used in addition to the pressurization of the cooling medium in the cooling circuit 30 in the case of a compressible cooling medium and for compression.
  • the pump may also be involved in a pressure exchange (outside the drawing) where it is converted between thermal, mechanical and hydraulic energy.
  • the arrangement 10 as a surface light there are a plurality of light elements 1.
  • light bulbs in addition to the preferred LEDs, a mixture with elongated or circular Gasendladungsröhren, fluorescent tubes or -ringröhren with a filament, tube lamps, light bulbs, head mirror bulbs, halogen bulbs, multi-walled Bulbs with built-in halogen incandescent bulbs or incandescent bulbs with built-in light emitting diodes in standard versions, which are socketed for a print mounting and thermally coupled suitable.
  • the light-emitting elements 1 are mounted on a support, for example, on a circuit board or printed circuit board 3, for example, soldered.
  • the printed circuit board 3 assumes the dissipation of the thermal power loss or waste heat of the arrangement for emitting light.
  • at least one copper pipe or a combination of lines are attached to the printed circuit board 3.
  • About the coolant, in the thermally coupled to the circuit board 3 tubes is fluidly moved, so extends into the assembly 10 and through, the removal of heat is accomplished quickly and reliably.
  • the arrangement for emitting light 10 is thus extended according to the present invention on components such as housing, light exit element and luminaire grid or reflector grid, mounting for the bulbs addition.
  • a device for a cooling device which communicates with the circuit board in a thermally coupling, mechanically releasable connection added.
  • a light emitting device 10 which, in addition to the power supply electrical connections, also has connections for incorporation into the refrigeration circuit 30, an inlet 12 and an outlet 14 for tubes 33, 33a and 33b for transporting the refrigerant through the device for light emission.
  • the terminals 12 and 14 may be provided with a screw thread and a liquid-tight seal or a coupling with a tap.
  • a simple insertion or removal of the arrangement for emitting light 10 from the cooling circuit 30 should be made possible.
  • In the maintenance of an arrangement for light output should also be provided a way to be able to flush the pipes in the array, especially in coils.
  • the suitable design of the connections with suitable pipe cross-sections ensures reliable serviceability and a long service life of the pipelines, prevents a loss of function of the LED units and avoids considerable costs for new pipe connections or pipes.
  • even thin-walled copper tubes, as they are common in heating or air conditioning can be used and connected by releasable connections in the cooling circuit 30 inserting each other.
  • an arrangement for space heating 42 is provided in the target circuit or the hot water circuit 40.
  • a space heater arrangement is used after Fig. 1 one Radiator with fins 44 as an example.
  • the heat exchanger 20 is connected to the radiator via lines in the usual way.
  • a pump 46 is further provided, by means of which the water is circulated and circulated in the hot water circuit 40.
  • the pump can in turn, in addition to venting of the lines, be provided a way to clean the lines to avoid that the pipe diameter over time by deposits on the inner walls such as lime or sludge is less.
  • the heat exchanger 20, the lines for the hot water circuit 40 and the radiator form a heating system 50 or are part of a heating system.
  • a run (such as a heat exchanger as a countercurrent cooler or a normally off flow heater) may be provided for the production and provision of hot water for sanitary purposes.
  • the cooling circuit 30 transmits the waste heat from the light elements to the hot water circuit 40 through the respective carrier media circulating in both circuits 30 and 40, wherein the heat exchange via the heat exchanger between the circuits can alternatively be mediated with a variable degree of coupling.
  • the waste heat from the lighting is transferred via a heat exchanger to the utility or heating water system to use this energy for hot water and / or heating purposes.
  • the components can be sunk into the ceiling, installed in the walls or hidden in the floor.
  • a floor heating which usually has a low flow temperature.
  • Another advantage is the timely fit of heat energy, namely just when the heating power is needed most in the dark season.
  • the present invention thus provides a simple, elegant and effective way to promote a well-tempered area of an LED array, in particular a luminaire with individual LED lighting elements of an LED luminaire, to produce a visually aesthetic overall appearance for the viewer, the costs for cooling or heating the building and, in addition, to contribute to the protection of the climate and resources.
  • the possibilities in the light output of the LED array by the planar lighting arrangements are so good even under high light fluxes that LED units operated due to the low cost well dimensioned cooling reserves even at high ambient temperatures and maximum light output at optimum temperatures and in their properties in associations as an array of LED arrays can be optimally organized.
  • the LED arrangement can be cooled down as far as the application or the user demands.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
EP10163796.5A 2009-05-25 2010-05-25 Agencement d'émission de lumière doté d'éléments d'éclairage Not-in-force EP2256404B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202009007426U DE202009007426U1 (de) 2009-05-25 2009-05-25 Anordnung zur Lichtabgabe mit Leuchtelementen

Publications (2)

Publication Number Publication Date
EP2256404A1 true EP2256404A1 (fr) 2010-12-01
EP2256404B1 EP2256404B1 (fr) 2013-07-17

Family

ID=42320290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10163796.5A Not-in-force EP2256404B1 (fr) 2009-05-25 2010-05-25 Agencement d'émission de lumière doté d'éléments d'éclairage

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EP (1) EP2256404B1 (fr)
DE (1) DE202009007426U1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2402004B1 (es) * 2011-07-21 2014-06-17 Formas, S.A. Sistema de recuperacion del calor disipado por luminarias, lamparas y dispositivos led
WO2013136250A1 (fr) * 2012-03-15 2013-09-19 Koninklijke Philips N.V. Dispositif à del comprenant un liquide de refroidissement à particules de phosphore en suspension
DE202014103329U1 (de) * 2014-07-18 2014-09-12 Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg Scheinwerfer mit einer LED-Lichtquelle
CN117053395B (zh) * 2023-08-16 2024-09-27 深圳市尚为光电工程有限公司 利用大功率灯具实现水体加热的节能系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH585882A5 (en) * 1975-04-18 1977-03-15 Tschudin Hans Rudolf Energy conservation system storing heat from lights for winter - has water loaded heat storage system connected to lighting fitting
US4081023A (en) * 1976-11-26 1978-03-28 Grumman Aerospace Corporation Heat pipes to use heat from light fixtures
EP0423920A2 (fr) * 1989-10-19 1991-04-24 Atlas Electric Devices Co. Système de refroidissement de lampe
EP1798497A2 (fr) * 2005-12-14 2007-06-20 Luis Henrique De Andrea Lencastre Godinho Système de collecte d'énergie thermique solaire basse pression et basse température
EP1833287A2 (fr) * 2006-03-07 2007-09-12 Samsung Electronics Co., Ltd. Appareil pour dissiper la chaleur et dispositif optique de projection qui en est pourvu

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI257718B (en) * 2004-03-18 2006-07-01 Phoseon Technology Inc Direct cooling of LEDs
DE102006016529A1 (de) * 2006-04-07 2007-10-18 Delo Industrieklebstoffe Gmbh & Co. Kg Halbleiterstrahlungsquelle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH585882A5 (en) * 1975-04-18 1977-03-15 Tschudin Hans Rudolf Energy conservation system storing heat from lights for winter - has water loaded heat storage system connected to lighting fitting
US4081023A (en) * 1976-11-26 1978-03-28 Grumman Aerospace Corporation Heat pipes to use heat from light fixtures
EP0423920A2 (fr) * 1989-10-19 1991-04-24 Atlas Electric Devices Co. Système de refroidissement de lampe
EP1798497A2 (fr) * 2005-12-14 2007-06-20 Luis Henrique De Andrea Lencastre Godinho Système de collecte d'énergie thermique solaire basse pression et basse température
EP1833287A2 (fr) * 2006-03-07 2007-09-12 Samsung Electronics Co., Ltd. Appareil pour dissiper la chaleur et dispositif optique de projection qui en est pourvu

Also Published As

Publication number Publication date
DE202009007426U1 (de) 2010-10-14
EP2256404B1 (fr) 2013-07-17

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