EP3080522B1 - Schallabsorbierende platte - Google Patents

Schallabsorbierende platte Download PDF

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Publication number
EP3080522B1
EP3080522B1 EP13821521.5A EP13821521A EP3080522B1 EP 3080522 B1 EP3080522 B1 EP 3080522B1 EP 13821521 A EP13821521 A EP 13821521A EP 3080522 B1 EP3080522 B1 EP 3080522B1
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EP
European Patent Office
Prior art keywords
panel
air
air passage
sound absorbing
fan
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.)
Active
Application number
EP13821521.5A
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English (en)
French (fr)
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EP3080522A1 (de
Inventor
Jesper Nielsen
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Kvadrat Soft Cells AS
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Kvadrat Soft Cells AS
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Publication date
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Publication of EP3080522A1 publication Critical patent/EP3080522A1/de
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/70—Drying or keeping dry, e.g. by air vents
    • E04B1/7069—Drying or keeping dry, e.g. by air vents by ventilating
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/02—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation having means for ventilation or vapour discharge
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B9/0428—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like having a closed frame around the periphery
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0089—Systems using radiation from walls or panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0089—Systems using radiation from walls or panels
    • F24F5/0092—Systems using radiation from walls or panels ceilings, e.g. cool ceilings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8428—Tray or frame type panels or blocks, with or without acoustical filling containing specially shaped acoustical bodies, e.g. funnels, egg-crates, fanfolds
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8452—Tray or frame type panels or blocks, with or without acoustical filling with peripheral frame members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling

Definitions

  • the present invention pertains to panels that can be used to cover interior surfaces in buildings, for instance in auditoriums, open-plan offices, etc. and more specifically to such panels for use in buildings with thermally activated building systems (TABS) in which balancing acoustics and thermal comfort is a well-recognized challenge
  • TABS thermally activated building systems
  • panels for covering of boundaries of a room, such as the ceiling, the walls, or partitions placed within the room.
  • Such panels can serve purely aesthetic purposes, but can also be used to actively alter a room's characteristics, for instance relating to acoustic and thermal properties of the room.
  • Panels used to determine the acoustic properties of a room often comprise a frame structure supporting a plate of a sound-absorbing material, such as mineral wool, gypsum or a thin wood membrane.
  • a sound-absorbing material such as mineral wool, gypsum or a thin wood membrane.
  • a sound barrier panel is described.
  • Said sound barrier is for isolating a noise source of the type emanating from manufacturing areas for food
  • the sound barrier comprises a panel made of sound attenuating material having a plurality of longitudinally extending side by side co-planar sections separated by V-shaped ribs so as to define a plurality of longitudinally extending side by side cavities.
  • the cavities are provided with acoustical absorptive material therein so that the sound waves emanating from the noise source are first absorbed by the acoustical absorptive material and thereafter partly attenuated by the panel and partly deflected thereby so as to be absorbed again by the acoustical absorptive material.
  • the panel is preferably transparent, and portions of at least some cavities may be left free of acoustical absorptive material so as to provide undistorted vision from one side of the panel to the opposite side thereof.
  • the sound barrier is intended to be disposed so that the open faces of the cavities confront the noise source.
  • the cavities are separated by flat panel sections instead of V-shaped ribs, which sections are free of acoustical absorptive material to provide undistorted vision there through.
  • US 2009/0178882 is described another sound panel- a so called acoustic panel- and a method is disclosed for an improved acoustic panel comprising a sound absorbing member defined by a first and second face surface and a plurality of peripheral edges
  • a sound blocking member is defined by a first and second face surface and a plurality of peripheral edges.
  • the first face surface of the sound blocking member is secured relative to the second face surface of the sound absorbing member for blocking the transmission of sound through it.
  • the first face surface of the sound blocking member is spaced relative to the second face surface of the sound absorbing member for decoupling the sound blocking member from the sound absorbing member.
  • An air handling ceiling apparatus comprising an acoustic panel is known from EP 1 959 207 A1 .
  • a problem with the above mentioned panels is that they are thermally isolating as well as sound absorbing, which render them practically useless in building thermally activated building systems, wherein usually the ceiling is water cooled.
  • EP 2 444 561 suggested a sound dampening, but thermally transparent panel comprising a substantially rigid frame, a front face and a rear face, one or more sound-absorbing elements, and sub-regions that acoustically connect the front face of the panel with the rear face of the panel, and in which sub-regions sound-absorbing elements are not present, whereby said sub-regions ensure thermal transmission through the panel, the panel comprising brackets that together with frame portions provide receptacles for said sound-absorbing elements, wherein said brackets comprise a central portion provided with apertures for providing access of a sound field to side faces of the sound-sbsorbing elements.
  • the above mentioned panel has proven to impair the operation of the TABS due to the thermally insulating properties of the sound absorbing regions.
  • the applicant has realized a need to improve said panel in order to provide an optimized balance between sound absorption and interference with the operation of a TABS.
  • a panel according to claim 1 the above-mentioned and other objects are fulfilled by a panel according to claim 1.
  • the surface onto which the panel is mounted will cool (or heat) the air in the first air gap down to substantially the same temperature as the surface itself, and by providing means for providing an airstream through the first air passage, this cool air will be transported to the second air gap and therefore cool the front cover (and the one or more sound absorbing elements).
  • the front cover of the panel will achieve the same temperature as the surface (e.g. ceiling) onto which the panel is mounted. Therefore, the comfort experienced in a room wherein the inventive panel is mounted will not be impaired, because the temperature conditions that exist on the surface onto wich the panel is mounted are "moved" to the front cover of the panel.
  • the one or more sound absorbing elements are box shaped.
  • the one or more sound absorbing elements are box shaped.
  • the sound absorbing elements are manufactured from mineral fibers such as glass or stone wool, but could be made from melamine foam, glass textile, cellulose (paper) based materials, ceramic substances or other porous materials,
  • the sound absorbing elements could also be membranes or perforated materials, working as membrane or resonance absorbers.
  • the dimensions of the one or more sound absorbing elements are chosen according to the lowest frequency at which substantial sound absorption shall take place.
  • the thickness of the one or more sound absorbing elements is in the range of 20 mm to 100 mm, which has proven to be especially good in absorbing undesired noise and its reverberations in the audible frequency range.
  • the front cover is a sheet of flexible material, e.g. woven textile material.
  • the front cover is tensioned regardless of for instance changes in the temperature and humidity of the surrounding environment and aging effect of the front cover material itself.
  • the front cover is of a material or structure which allows air to diffuse through it, whereby heat exchange between the surface onto which the panel is mounted and the surrounding environment is further enhanced due to exchange of heat through air transport.
  • the frame of the panel may in yet another embodiment further comprise an apperture in each of the ends of the frame that are furthest away from the first air passage between the first and second air gap, said apertures being placed on said frame for allowing air to flow from the surroundings of the panel directly into the first air gap for compensation of the air which diffuses out of the second air gap through the front cover.
  • the first air passage is placed in the center of the panel.
  • the panel has an elongated shape with a longitudinal axis, which is longer than its transversal axis.
  • the panel may have any of the following shapes: box shaped, oval shaped or elliptical shaped
  • the panel further comprises a second and third additional air passage between the first and second air gap each of said second and third air passages being placed at the respective end of the panel that is furthest away from the first air passage
  • a forced air circulation may be achieved, wherein air is forced through the first air passage from the first or second air gap, and further through the two second and third air passages towards the first air passage again.
  • the flow of air would be forced to substantially travel along all the surface of the sound absorbing elements as well as the back side of the front cover, whereby a very efficient cooling of the front cover (and one or more sound absorbing elements) is achieved.
  • each of the second and third air passages are provided as a gap between the frame and one or more sound absorbing elements.
  • the first air passage is placed adjacent to the frame of the panel, the panel further comprising a second air passage between the first and second air gaps, said second air passage being provided adjacent to the part of the frame, which is furthest away from the first air passage.
  • the frame completely surrounds the edges of the panel. Hereby it is possible to tension the front cover by its attachment to the frame.
  • the first air gap which is defined by the distance between the one or more sound absorbing elements and the surface when the panel is mounted on said surface, is 10 mm to 25 mm wide.
  • the second air gap is, which is defined by the distance between the one or more sound absorbing elements and the front cover, is 8 mm to 15 mm wide.
  • the speed of the airstream through the first air passage is adjusted, so that a minimum of energy is used, still achieving a temperature in the second air gap close to that of the surface that the panel is mounted on.
  • the means for providing the airstream through said first air passage is a fan placed in or adjacent to the first air passage.
  • a fan may be connected to the power grid in a normal way, e.g via a transformer built into the panel
  • a fan is low in energy consumption and may be virtually silent, whereby the sound environment of the room in which the inventive panel is used is not impaired by the application of a fan as means for providing said airstream through the first air passage.
  • a specially built fan may be used or an off-the-shelf fan, such as those used for cooling various parts of a computer, may be used.
  • the fan may be configured to aperate at a fixed, predefined, effect.
  • the panel comprises means (e.g. two temperature sensors) for monitoring the temperature difference between the air in the two air gaps.
  • the panel further comprises two temperature sensors placed adjacent to or on the same side of the one or more sound absorbing elements, at two different distances from the first air passage in the direction of flow of air, said temperature sensors being connected to a controller, which controller is operatively connected to the fan.
  • a controller which controller is operatively connected to the fan.
  • the controller is configured to compare the temperature measurements from the two temperature sensors and regulate the operation of the fan in dependence of the numerical value of said comparison. Said comparison could e.g. be the calculation of a ratio.
  • said comparison is a calculation of the difference (e.g. the numerical difference) of the temperature measurements from the two temperature sensors, and wherein the fan is regulated in such a way that
  • said comparison is a calculation of the numerical difference of the temperature measurements from the two temperature sensors, and wherein the fan is regulated in such a way that
  • the surface onto which the panel is to be mounted forms part of a thermally activated building system. Due to the forced airstream between the first and second air gaps, the sound absorbing elements will not function as thermally insulating thereby making the panel according to the invention especially suitable for being used in connection with TABS, e.g. a water cooled roof or ceiling.
  • the surface onto which the panel is to be mounted is a ceiling or a wall.
  • said controller is furthermore operatively to the thermally activated building system.
  • FIG. 1 and 2 show a panel 2 according to the invention as seen from above ( Fig. 1 ), and as seen from the side ( Fig. 2 ).
  • the panel is mounted on a DClling 6 inside a building.
  • the illustrated panel 2 comprises a substantially rigid frame 4, a front cover 8 placed on said frame 4 and being configured to face away from said surface (e.g. ceiling 6) onto which the panel 2 is to be mounted.
  • the panel 2 also comprises a sound absorbing element 10 placed within said frame 4 in such a way that a first air gap 12 is formed between the sound absorbing element 10 and the ceiling 6 when the panel 2 is mounted on said ceiling 6, and a second air gap 14 is formed between the sound absorbing element 10 and the front cover 8.
  • the illustrated panel further comprises a fan 16 placed in a first air passage 18 between the first air gap 12 and the second air gap 14.
  • the fan 16 is configured for providing an airstream through said first air passage 18.
  • the fan 18 may be connected to the power grid in a normal way e.g. via a transformer built into the panel 2.
  • the first air passage 18 is placed in the center of the panel 2.
  • the panel 2 shown in Fig. 1 and Fig. 2 further comprises a second and third additional air passage 20, 22 between the first and second air gap 12, 14, each of said second and third air passages 20, 22 being provided as a gap between the frame 4 and the absorbing elements 10.
  • a forced air circulation may be achieved, wherein air is forced through the first air passage 18 from the first air gap 12, and further through the two second and third air passages 20, 22, towards the first air passage 18 again as indicated by the arrows.
  • the flow of air would be forced to substantially travel along ail the surface of the sound absorbing element 10 as well as the back side of the front cover 8, whereby a very efficient cooling of the front cover 8 (and sound absorbing element 10) is achieved if the ceiling 6 is cooked by for example a TABS.
  • the second and third air passages 20, 22 as a gap between the frame 4 and sound absorbing element 10 at the ends of the panel 2 that are furthest away from the first air passage 18, it is ensured that the air will flow over substantially all of the inner side of the front cover 8, whereby a more effective temperature exchange with said front cover 8 is achieved.
  • the ceiling 6 will cool the air in the first air gap 12 down to substantially the same temperature as the ceiling 6 itself, and by providing a fan 16 for providing an airstream through the first air passage 18. This cool air will be transported to the second air gap 14 and therefore cool the front cover 8 (and the sound absorbing element 10).
  • the front cover 8 of the panel 2 will achieve the same temperature as the ceiling 6, onto which the panel 2 is mounted. Therefore, the comfort experienced in a room wherein the inventive panel 2 is mounted will not be impaired, because the temperature conditions, which exist on the surface (ceiling 6) onto which the panel 2 is mounted, are "moved" to the front cover 8 of the panel 2.
  • a sound absorbing panel 2 which is thermally transparent.
  • the front cover 8 is a sheet of flexible material, e.g. woven textile material.
  • the front cover 8 is tensioned regardless of for instance changes in the temperature and humidity of the surrounding environment and aging effect of the front cover material itself.
  • the frame 4 completely surrounds the edges of the panel 2. Hereby it is possible to tension the front cover 8 by its attachment to the frame 4.
  • the illustrated sound absorbing element 10 is substantial box shaped. Hereby is achieved a rather pratical solution, especially suitable for building several panels 2 together to form one larger unit.
  • the sound absorbing element 10 is preferably manufactured from mineral fibers such as glass or stone wool, but could be made from meiamine foam, glass textile, cellulose (paper) based materials, ceramic substances or other porous materials.
  • the sound absorbing elements could also be membranes or perforated materials, working as membrane or resonance absorbers.
  • the thickness of the sound absorbing element 10 is preferably in the range of 20 mm to 100 mm, which has proven to be especially good in absorbing noise and reverberations in the frequency range of 300 Hz to 3500 Hz.
  • the first air gap 12, which is defined by the distance between the sound absorbing element 10 and the ceiling 6. is approximately 10 mm to 25 mm wide
  • the second air gap 14, which is defined by the distance between the sound absorbing element 10 and the front 8 cover is 8 mm to 15 mm wide.
  • the speed of the airstream through the first air passage 18 is adjusted, so that a minimum of energy is used, still achieving a temperature in the second air gap close to that of the surface that the panel is mounted on.
  • Fig. 3 shows another embodiment of a pane! 2 according to the invention.
  • the illustrated panel 2 comprises two temperature sensors 24, 26 for monitoring the temperature difference between the air in the two air gaps 12 and 14.
  • the two temperature sensors 24, 26 are placed on the same side of the sound absorbing element 10 at two different distances from the first air passage 18 in the direction of flow of air (as illustrated by the arrows).
  • the temperature sensors 24, 26 are connected to a controller 28, which controller 28 is operatively connected to the fan 16.
  • the temperature difference between the two air gaps 12, 14 is monitored in a very practical way. because, if the temperature of the front cover 8 and the ceiling 6 has been evened out, then there will be substantially no difference in the two measurements. The difference in the temperature measurements can therefore be used to control the fan 16.
  • the controller 28 calculates the difference (e.g. the numerical deference) of the temperature measurements from the two temperature sensors 24, 26, and regulates the fan 16 in such a way that
  • the controller 28 calculates the difference (e.g. the numerical difference) of the temperature measurements from the two temperature sensors 24, 26, and controls the fan 16 in such a way that
  • said controller may be operatively connected to a thermally activated building system.
  • Fig. 4 shows an alternative embodiment of a panel 2 according to the invention having an elliptical shape.
  • Fig. 5 shows yet another alternative embodiment of the invention wherein the first air passage 18 is placed to the frame 4 of the panel, and wherein the panel 2 only further comprises a second air passage 30 between the first and second air gaps, 12, 14, said second air passage 30 being prodded adjacent the part of the frame 4 that is furthest away from the first air passage 18.
  • Fig. 6 shows a cross section of another embodiment of a pane! 2 mounted on a ceiling 6.
  • the illustrated panel 2 is substantially similar to the panel 2 illustrated in any of the Figures 1-3 . Hence, only the fifferences will be described.
  • the front cover 8 is of a material or structure that allows air to diffuse through it, as indicated by the arrows going through the front cover 8, whereby heat exchange between the ceiling 6 onto which the panel 2 is mounted and the surrounding environment is further enhanced clue to exchange of heat through air transport.
  • the frame 4 of the illustrated panel 2 further comprises an aperture 32 in each of the ends of the frame 4 that are furthest away from the first air passage 18 between the first air gap 12 and second air gap 14. These apertures 32 are placed in such a way on the frame 4 that air is allowed to How from the surroundings of the panel 2 directly into the first air gap 12 for compensation of the air that diffuses out of the second air gap 14 through the front cover 8.
  • a panel according to the embodiment illustrated in Fig. 1 has been tested and compared with a pane! without a fan in order to assess the thermal conductivity properties in connection with a TAB ceiling.
  • the tests were performed by the independent German company HLK Stuttgart GmbH. The tests showed that the acoustical elements reduced the heat transport hrough panel by 41% if no fan was present. If however a fan, type CMP-Fan 25, from the producer König Electronic. Diameter 12 mm, was used as shown in e.g. Fig. 1 and 2 , the heat transport was only reduced by 10%, thereby making the panel according to the invention virtually thermally transparent

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Building Environments (AREA)

Claims (25)

  1. Schallabsorbierende Platte (2) zur Montage an einer Fläche in einem Gebäude, wobei die Fläche Teil eines thermisch aktivierten Bauteilsystems (TABS) ist, wobei die Platte (2) Folgendes umfasst:
    einen im Wesentlichen starren Rahmen (4),
    eine Frontabdeckung (8), die auf dem Rahmen (4) angeordnet ist und dazu konfiguriert ist, von der Fläche wegzuweisen, auf die die Platte (2) montiert werden soll,
    ein oder mehrere schallabsorbierende Elemente (10), die so innerhalb des Rahmens (4) angeordnet sind, dass ein erster Luftspalt (12) zwischen dem einen oder den mehreren schallabsorbierenden Elementen (10) und der Fläche gebildet wird, wenn die Platte (2) an der Fläche montiert wird, und ein zweiter Luftspalt (14) zwischen dem einen oder den mehreren schallabsorbierenden Elementen (10) und der Frontabdeckung (8) gebildet wird, wobei die Platte (2) weiter einen ersten Luftdurchlass (18) zwischen dem ersten und dem zweiten Luftspalt (12, 14) und ein Mittel zum Bereitstellen eines Luftstroms durch den ersten Luftdurchlass (18) umfasst, und wobei es sich bei dem Mittel zum Bereitstellen des Luftstroms durch den ersten Luftdurchlass um ein Gebläse (16) handelt, das in oder neben dem ersten Luftdurchlass (18) angeordnet ist.
  2. Platte (2) nach Anspruch 1, wobei das eine oder die mehreren schallabsorbierenden Elemente (10) kastenförmig sind.
  3. Platte (2) nach Anspruch 1 oder 2, wobei die schallabsorbierenden Elemente (10) aus einem beliebigen der folgenden Materialien gefertigt werden: Mineralfasern, wie Glas- oder Steinwolle, Melaminschaum, Glasgewebe, auf Cellulose basierenden Materialien, Keramiksubstanzen, Membranen oder perforierten Materialien, die als Membranen oder Resonanzabsorber fungieren.
  4. Platte (2) nach Anspruch 1, 2 oder 3, wobei die Abmessungen des einen oder der mehreren schallabsorbierenden Elemente (10) gemäß der niedrigsten Frequenz gewählt werden, bei der eine wesentliche Schallabsorption stattfinden soll.
  5. Platte (2) nach Anspruch 4, wobei die Dicke des einen oder der mehreren schallabsorbierenden Elemente (10) im Bereich von 20 mm bis 100 mm liegt, wobei Geräusche im hörbaren Frequenzbereich im Wesentlichen absorbiert werden.
  6. Platte (2) nach einem der vorstehenden Ansprüche, wobei die Frontabdeckung (8) eine Bahn aus flexiblem Material, z.B. gewebtem Textilmaterial, ist.
  7. Platte (2) nach einem der vorstehenden Ansprüche, wobei die Frontabdeckung (8) aus einem Material oder einer Struktur ist, das bzw. die es Luft ermöglicht, hindurch zu diffundieren.
  8. Platte (2) nach Anspruch 7, die weiter eine Öffnung (32) in jedem der Enden des Rahmens (4), die am weitesten von dem ersten Luftdurchlass (18) entfernt sind, zwischen dem ersten und dem zweiten Luftspalt (12, 14) umfasst, wobei die Öffnungen (32) an dem Rahmen (4) angeordnet sind, um es der Luft zu ermöglichen, von der Umgebung der Platte (2) direkt in den ersten Luftspalt (12) zu strömen, zum Kompensieren der Luft, die aus dem zweiten Luftspalt (14) durch die Frontabdeckung (8) diffundiert.
  9. Platte (2) nach einem der vorstehenden Ansprüche, wobei der erste Luftdurchlass (18) in der Mitte der Platte (2) angeordnet ist.
  10. Platte (2) nach einem der vorstehenden Ansprüche, wobei die Platte (2) eine längliche Form aufweist, mit einer Längsachse, die länger ist als ihre Querachse.
  11. Platte (2) nach Anspruch 10, die eine der folgenden Formen aufweist: kastenförmig, oval oder elliptisch.
  12. Platte (2) nach Anspruch 10 oder 11, die weiter einen zweiten und dritten zusätzlichen Luftdurchlass (20, 22) zwischen dem ersten und zweiten Luftspalt (12, 14) umfasst, wobei jeder des zweiten und des dritten Luftdurchlasses (20, 22) an dem entsprechenden Ende der Platte (2) angeordnet sind, das am weitesten von dem ersten Luftdurchlass (18) entfernt ist.
  13. Platte (2) nach Anspruch 12, wobei jeder des zweiten und des dritten Luftdurchlasses (20, 22) als ein Spalt zwischen dem Rahmen (4) und dem einen oder den mehreren schallabsorbierenden Elementen (10) vorgesehen ist.
  14. Platte (2) nach einem der Ansprüche 1-7, wobei der erste Luftdurchlass (18) neben dem Rahmen (4) der Platte (2) angeordnet ist, wobei die Platte (2) weiter einen zweiten Luftdurchlass (30) zwischen dem ersten und zweiten Luftspalt (12, 14) umfasst, wobei der zweite Luftdurchlass (30) neben dem Teil des Rahmens (4) vorgesehen ist, der am weitesten von dem ersten Luftdurchlass (18) entfernt ist.
  15. Platte (2) nach einem der vorstehenden Ansprüche, wobei der Rahmen (4) die Kanten der Platte (2) vollständig umgibt.
  16. Platte (2) nach einem der vorstehenden Ansprüche, wobei der erste Luftspalt (12), der durch den Abstand zwischen dem einen oder den mehreren schallabsorbierenden Elementen (10) und der Fläche, wenn die Platte (2) an der Fläche montiert ist, definiert wird, 10 mm bis 25 mm breit ist.
  17. Platte (2) nach einem der vorstehenden Ansprüche, wobei der zweite Luftspalt (14), der durch den Abstand zwischen dem einen oder den mehreren schallabsorbierenden Elementen (10) und der Frontabdeckung (8) definiert wird, 8 mm bis 15 mm breit ist.
  18. Platte (2) nach einem der vorstehenden Ansprüche, wobei die Geschwindigkeit des Luftstroms durch den ersten Luftdurchlass (18) so eingestellt wird, dass ein Minimum an Energie verwendet wird, in dem zweiten Luftspalt dennoch eine Temperatur nahe derer der Fläche, auf der die Platte montiert ist, erreicht wird.
  19. Platte (2) nach einem der vorstehenden Ansprüche, wobei das Gebläse (16) dazu konfiguriert ist, mit einer festgelegten, vordefinierten Wirkung betrieben zu werden.
  20. Platte (2) nach einem der vorstehenden Ansprüche, wobei die Platte (2) weiter zwei Temperatursensoren (24, 26) umfasst, die neben oder auf der gleichen Seite von dem einen oder den mehreren schallabsorbierenden Elementen (10) in zwei unterschiedlichen Abständen zu dem ersten Luftdurchlass (18) in der Richtung des Luftstroms angeordnet sind, wobei die Temperatursensoren (24, 26) mit einer Steuerung (28) verbunden sind, wobei die Steuerung (28) betriebswirksam mit dem Gebläse (16) verbunden ist.
  21. Platte (2) nach Anspruch 20, wobei die Steuerung (28) dazu konfiguriert ist, die Temperaturmessungen von den zwei Temperatursensoren (20, 22) zu vergleichen und den Betrieb des Gebläses (16) in Abhängigkeit von dem numerischen Wert des Vergleichs zu regeln.
  22. Platte (2) nach Anspruch 21, wobei der Vergleich eine Berechnung des numerischen Unterschieds zwischen den Temperaturmessungen von den zwei Temperatursensoren (24, 26) ist und wobei das Gebläse (16) so geregelt wird, dass
    - der Luftstrom durch den ersten Luftdurchlass (18) zwischen dem ersten und dem zweiten Luftspalt (12, 14) erhöht wird, wenn der Unterschied über einem vorgegebenen Schwellenwert liegt, oder
    - der Luftstrom durch den ersten Luftdurchlass (18) zwischen dem ersten und dem zweiten Luftspalt (12, 14) verringert wird, wenn der Unterschied unter dem vorgegebenen Schwellenwert liegt.
  23. Platte (2) nach Anspruch 21, wobei der Vergleich eine Berechnung des numerischen Unterschieds zwischen den Temperaturmessungen von den zwei Temperatursensoren (24, 26) ist, und wobei das Gebläse (16) so gesteuert wird, dass
    - das Gebläse (16) angeschaltet oder angelassen wird, wenn der Unterschied über einem vorgegebenen Schwellenwert liegt, oder
    - das Gebläse (16) ausgeschaltet oder ausgelassen wird, wenn der Unterschied unter dem vorgegebenen Schwellenwert liegt.
  24. Platte (2) nach einem der vorstehenden Ansprüche, wobei es sich bei der Fläche, an der die Platte montiert werden soll, um eine Decke (6) oder eine Wand handelt.
  25. Platte (2) nach einem der Ansprüche 20-24, wobei die Steuerung (28) weiter betriebswirksam mit dem thermisch aktivierten Bauteilsystem verbunden ist.
EP13821521.5A 2013-11-28 2013-11-28 Schallabsorbierende platte Active EP3080522B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2013/060484 WO2015079289A1 (en) 2013-11-28 2013-11-28 A sound absorbing panel

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EP3080522A1 EP3080522A1 (de) 2016-10-19
EP3080522B1 true EP3080522B1 (de) 2018-05-30

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EP3809053A1 (de) * 2019-10-18 2021-04-21 LTG Aktiengesellschaft Klimasegelanordnung und raum

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JP2001140368A (ja) * 1999-11-15 2001-05-22 Etsuo Kobayashi 吸着再生通気構造、及びこれに用いる通気制御装置
DE10043968A1 (de) * 2000-09-06 2002-04-04 Wilhelmi Werke Ag Verfahren zum Klimatisieren von Räumen und Klimadecke
DE10223085B4 (de) * 2001-06-06 2006-04-13 Ltg Aktiengesellschaft Einrichtung zum Heizen und/oder Kühlen eines Raumes
EP1777469A1 (de) * 2005-10-18 2007-04-25 Barcol-Air Ag Kühlelement
EP1959207A1 (de) * 2007-02-14 2008-08-20 MWH Barcol-Air AG Klimadecke und Verfahren zu ihrem Betrieb
JP5426979B2 (ja) * 2009-09-24 2014-02-26 パナソニック株式会社 調湿パネル

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WO2015079289A1 (en) 2015-06-04
KR20160079023A (ko) 2016-07-05
EP3080522A1 (de) 2016-10-19
KR102044727B1 (ko) 2019-11-15

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