WO2010046536A1 - Elément de plafond - Google Patents

Elément de plafond Download PDF

Info

Publication number
WO2010046536A1
WO2010046536A1 PCT/FI2009/050845 FI2009050845W WO2010046536A1 WO 2010046536 A1 WO2010046536 A1 WO 2010046536A1 FI 2009050845 W FI2009050845 W FI 2009050845W WO 2010046536 A1 WO2010046536 A1 WO 2010046536A1
Authority
WO
WIPO (PCT)
Prior art keywords
ceiling element
inlet
air
air flow
light source
Prior art date
Application number
PCT/FI2009/050845
Other languages
English (en)
Inventor
Mikko MYYRYLÄINEN
Original Assignee
Yit Kiinteistötekniikka Oy
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 Yit Kiinteistötekniikka Oy filed Critical Yit Kiinteistötekniikka Oy
Priority to EP09821650.0A priority Critical patent/EP2344814B1/fr
Publication of WO2010046536A1 publication Critical patent/WO2010046536A1/fr

Links

Classifications

    • 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
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/078—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser combined with lighting fixtures
    • 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
    • F21V33/0088—Ventilating systems
    • F21V33/0092—Ventilating systems with heating or cooling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
    • F24F3/056—Systems in which all treatment is given in the central station, i.e. all-air systems the air at least partially flowing over lighting fixtures, the heat of which is dissipated or used 
    • 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
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • 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
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • F21V29/677—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for discharging
    • 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
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/02—Details or features not otherwise provided for combined with lighting fixtures

Definitions

  • This invention relates to a ceiling element intended for forming a part of the suspended ceiling of a space and having temperature control means for controlling the temperature of the space.
  • Prior art discloses a ceiling element to be arranged on the ceiling of a room or another space, the element forming a part of the suspended ceiling of the space and being provided with temperature control means for controlling the temperature of the space via a warm air flow flowing from the ceiling element.
  • the ceiling element is provided with a pipe system for supplying warm fluid, such as warm water, via the inlet of the ceiling element into the flow channel of the ceiling element.
  • the flow channel or a heat exchanger forming a part of it is positioned in an air flow supplied via the air supply opening of the ceiling element into the space for warming the space.
  • the cooled fluid is removed from the flow channel via an outlet opening to a separate heating apparatus for reheating.
  • one or more light sources are also arranged for illuminating the surroundings.
  • the ceiling element could utilize light sources consuming as little electric energy as possible.
  • Light sources consuming the least energy such as LED (Light Emitting Diode) lamps are not, however, suitable to be used as light sources in connection with known ceiling elements because they heat too much, which means that their service life is too short.
  • An object of this invention is to solve the above problem and to provide a solution which allows light sources consuming as little electric energy as possible to be used in a ceiling element. This object is achieved with a ceiling element according to independent claim 1.
  • the invention utilizes an air flow flowing from the inlet of the ceiling element towards the air supply opening, part of the air flow being separated to a nozzle.
  • the nozzle generates a cooling air flow to the light source of the ceiling element. Thanks to the air flow provided for the light source by the nozzle, the thermal stress generated by the light source can be efficiently taken away from the light source along with the air flow, so that the temperature of the light source can be controlled better than before and its service life can be made longer.
  • Figure 1 illustrates a first embodiment of the ceiling element according to the invention
  • Figure 2 illustrates a second embodiment of the ceiling element according to the invention.
  • Figure 3 illustrates a third embodiment of the ceiling element according to the invention.
  • Figure 1 illustrates a first preferred embodiment of a ceiling element 1.
  • the ceiling element 1 is arranged in connection with a suspended ceiling 2 of a room or space, and it comprises an air supply opening 3 for supplying an air flow into the space located below the ceiling element 1.
  • the ceiling element 1 may be suspended on the actual ceiling of the space, for example.
  • the air flow is conveyed to an inlet 4 of the ceiling element 1 along a pipe 5.
  • the pipe 5 may be attached to the ventilation installation of the real estate, by means of which installation fresh air is brought to the space where the ceiling element 1 resides.
  • the air flow is generated by a fan belonging to the ventilation installation of the real estate.
  • the ceiling element 1 of Figure 1 also comprises light sources 6.
  • these sources are formed specifically by LED lamps comprising a plurality of light emitting diodes arranged close to each other and illuminating the surroundings of the ceiling element 1, i.e. the space where the ceiling element resides.
  • the electric connections of the light sources 6 are implemented in the inside of a housing 7 of the ceiling element 1 , to which a body 9 of the light sources 6 extends.
  • the ceiling element comprises nozzles 10 which generate, out of some of the air flow flowing from the inlet 4 of the ceiling element, a cooling flow to the light sources 6.
  • the nozzles may be formed of openings arranged at appropriate points to enable an air flow to the light sources.
  • the nozzles 10 comprise a tubular portion with which a cooling flow can be accurately directed towards the body 9 of the light sources 6 extending to the inside of the housing 7.
  • the body 9 of the light sources 6 may be provided with cooling elements 12, which may be formed of adjacent cooling fins increasing the area to be cooled. However, this is not necessary in embodiments in which the air flow directed at the body provides sufficient cooling efficiency.
  • the ceiling element 1 comprises temperature control means which change the temperature of the air flow flowing from the inlet 4 to the air supply opening 3.
  • the temperature control means comprise a flow channel 13 to an inlet 14 of which fluid, such as water, is supplied by means of a pipe 16 and from an outlet 15 of which fluid having flown through the flow channel is removed by means of a pipe 17.
  • the flow channel 13 or a heat exchanger forming a part of it is arranged in the air flow flowing from the inlet 4 to the air supply opening 3 to change the temperature of this air flow.
  • the temperature control means cool the air flow before it ends up in the nozzles 10, whereby cooling of the light sources is at its most efficient. If the ceiling element 1 is, by contrast, used to heat the space where the ceiling element resides, the fluid to be supplied to the inlet of the flow channel 13 is hot. Thus, in the example of Figure 1 , the temperature control means heat the air flow before it ends up in the nozzles 10, whereby cooling of the light sources is not quite as efficient as in connection with cold fluid.
  • the temperature of the air flow required for heating the room or space is sufficiently low, so that this air flow is applicable to cooling the light sources.
  • the ceiling element according to the invention can be utilized in both cases. In other words, one single ceiling element can be provided with hot fluid to heat the space during the cold season and with cold fluid to cool the space during the warm season.
  • the temperature control means are arranged to heat or cool the air flow before some of it is separated to the nozzle 10.
  • the nozzles 10 are positioned in the flowing direction of air before the temperature control means.
  • the temperature of the air flow ending up at the nozzles 10 is the same as the temperature of the air flow to be supplied to the inlet, and only the temperature of the air flow flowing further to the inlet opening 3 is changed.
  • Figure 2 illustrates a second preferred embodiment of a ceiling element V according to the invention.
  • the embodiment of Figure 2 corresponds to a great extent to the embodiment of Figure 1 , due to which the embodiment of Figure 2 is described in the following primarily by bringing forth differences between the embodiments.
  • the ceiling element 1' also comprises a fan 18 to generate an air flow from the inlet 4 to the air supply opening 3.
  • the air intake opening of the fan opens to above the ceiling element 1 ⁇ i.e. in practice to the space between the suspended ceiling 2 and the actual ceiling of the space or room.
  • the air intake may alternatively take place from the room or space itself, in which case the suspended ceiling, for example, may have an opening connected via a pipe to the air intake opening of the fan 18.
  • the ceiling element 1' generates a closed cycle in the room or space where it resides. In such a solution, fresh air is conveyed to the room or space in another way.
  • Figure 3 illustrates a third preferred embodiment of the ceiling element according to the invention.
  • the embodiment of Figure 3 corresponds to a great extent to the embodiment of Figure 1 , due to which the embodiment of Figure 3 is described in the following primarily by bringing forth differences between the embodiments.
  • the light sources 6 are arranged on a ceiling element 1" in such a way that their bodies 9 are positioned completely or nearly completely outside the housing 7 of the ceiling element 1".
  • nozzles 10' are arranged to project out of the housing of the ceiling element 1" to control some of the air flow originating from the inlet 4 towards the light sources 6. Openings 11 according to the preceding embodiments are thus not needed in this embodiment.
  • the body 9 of the light source 6 is shown without the cooling element 12 according to the preceding embodiments, although also in this embodiment the body of the light source may be provided with a cooling element increasing the area to be cooled.
  • the ceiling element 1" has no fan but that the flowing air is conveyed along the pipe 5 to the inlet of the ceiling element 1".
  • the solution described in the context of Figure 2 may be used, whereby the ceiling element 1 " comprises a fan which is similar to the one in Figure 2 and whose air intake opening takes some or all of the required air from the space or room where the ceiling element 1" resides.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

La présente invention concerne un élément de plafond (1) comprenant une entrée (4) destinée à recevoir un flux d'air une ouverture d'apport d'air (3) destinée à l'apport d'un flux d'air dans un espace des moyens de régulation de température (13 à 15) permettant de modifier la température du flux d'air s'écoulant de l'entrée (4) vers l'ouverture d'apport d'air (3) ; et au moins une source lumineuse (6) permettant d'éclairer les environs de l'élément de plafond (1). Pour que l'élément de plafond puisse utiliser des sources lumineuses dont la consommation d'énergie électrique est aussi faible que possible, l'élément de plafond (1) comprend une buse (10) destinée à générer un débit de refroidissement vers ladite source lumineuse (6) en utilisant le flux d'air reçu de l'entrée (4).
PCT/FI2009/050845 2008-10-22 2009-10-21 Elément de plafond WO2010046536A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09821650.0A EP2344814B1 (fr) 2008-10-22 2009-10-21 Élément de plafond

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20085999A FI123815B (fi) 2008-10-22 2008-10-22 Kattoelementti
FI20085999 2008-10-22

Publications (1)

Publication Number Publication Date
WO2010046536A1 true WO2010046536A1 (fr) 2010-04-29

Family

ID=39924639

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2009/050845 WO2010046536A1 (fr) 2008-10-22 2009-10-21 Elément de plafond

Country Status (3)

Country Link
EP (1) EP2344814B1 (fr)
FI (1) FI123815B (fr)
WO (1) WO2010046536A1 (fr)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102829511A (zh) * 2011-12-20 2012-12-19 Lg电子株式会社 空气调节器
WO2012174155A1 (fr) * 2011-06-15 2012-12-20 Airius Ip Holdings, Llc Dispositifs, systèmes et procédés de déplacement d'air en colonne
GB2492310A (en) * 2011-05-20 2013-01-02 Frenger Systems Ltd Air conditioning module having a curved outlet
JP2013088042A (ja) * 2011-10-19 2013-05-13 Takahashi Setsubi Co Ltd 天井カセット型空調機用照明装置及び天井カセット型空調機
US8616842B2 (en) 2009-03-30 2013-12-31 Airius Ip Holdings, Llc Columnar air moving devices, systems and method
CN103836727A (zh) * 2014-02-25 2014-06-04 广东美的制冷设备有限公司 落地式空调室内机
JP2014528568A (ja) * 2011-10-12 2014-10-27 リンデール インコーポレイテッド 組み合わされた照明および空調設備
US9151295B2 (en) 2008-05-30 2015-10-06 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US9459020B2 (en) 2008-05-30 2016-10-04 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
USD783795S1 (en) 2012-05-15 2017-04-11 Airius Ip Holdings, Llc Air moving device
US9631627B2 (en) 2004-03-15 2017-04-25 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US9702576B2 (en) 2013-12-19 2017-07-11 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
EP3193096A1 (fr) * 2016-01-15 2017-07-19 Samsung Electronics Co., Ltd Climatiseur d'air
USD805176S1 (en) 2016-05-06 2017-12-12 Airius Ip Holdings, Llc Air moving device
USD820967S1 (en) 2016-05-06 2018-06-19 Airius Ip Holdings Llc Air moving device
US10024531B2 (en) 2013-12-19 2018-07-17 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
WO2019034465A1 (fr) * 2017-08-17 2019-02-21 Philips Lighting Holding B.V. Luminaire chauffant segmenté à multiplicateur d'air intégré
US10221861B2 (en) 2014-06-06 2019-03-05 Airius Ip Holdings Llc Columnar air moving devices, systems and methods
FR3071906A1 (fr) * 2017-09-29 2019-04-05 Sebastien Lenot Dispositif et procede de recuperation de chaleur pour foyer ferme (insert, cheminee, ou poele a bois) dont l'integralite du systeme, moteur et conduits se situe dans la partie habitable du logement
US10401049B2 (en) * 2016-05-12 2019-09-03 Price Industries Limited Laminar flow diffuser with integrated lighting
US10487852B2 (en) 2016-06-24 2019-11-26 Airius Ip Holdings, Llc Air moving device
USD885550S1 (en) 2017-07-31 2020-05-26 Airius Ip Holdings, Llc Air moving device
USD886275S1 (en) 2017-01-26 2020-06-02 Airius Ip Holdings, Llc Air moving device
USD887541S1 (en) 2019-03-21 2020-06-16 Airius Ip Holdings, Llc Air moving device
CN113396303A (zh) * 2018-11-13 2021-09-14 简·斯托德 室内照明和气候系统
US11598539B2 (en) 2019-04-17 2023-03-07 Airius Ip Holdings, Llc Air moving device with bypass intake

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See also references of EP2344814A4

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US10487840B2 (en) 2004-03-15 2019-11-26 Airius Ip Holdings, Llc Temperature destratification systems
US9714663B1 (en) 2004-03-15 2017-07-25 Airius Ip Holdings, Llc Temperature destratification systems
US11053948B2 (en) 2004-03-15 2021-07-06 Airius Ip Holdings, Llc Temperature destratification systems
US11365743B2 (en) 2004-03-15 2022-06-21 Airius Ip Holdings, Llc Temperature destratification systems
US9631627B2 (en) 2004-03-15 2017-04-25 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US12085084B2 (en) 2004-03-15 2024-09-10 Airius Ip Holdings, Llc Temperature destratification systems
US11703062B2 (en) 2004-03-15 2023-07-18 Airius Ip Holdings, Llc Temperature destratification systems
US9335061B2 (en) 2008-05-30 2016-05-10 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US9970457B2 (en) 2008-05-30 2018-05-15 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US9459020B2 (en) 2008-05-30 2016-10-04 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US9151295B2 (en) 2008-05-30 2015-10-06 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US8616842B2 (en) 2009-03-30 2013-12-31 Airius Ip Holdings, Llc Columnar air moving devices, systems and method
GB2492310A (en) * 2011-05-20 2013-01-02 Frenger Systems Ltd Air conditioning module having a curved outlet
AU2012271640B2 (en) * 2011-06-15 2015-12-03 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
WO2012174155A1 (fr) * 2011-06-15 2012-12-20 Airius Ip Holdings, Llc Dispositifs, systèmes et procédés de déplacement d'air en colonne
US10184489B2 (en) 2011-06-15 2019-01-22 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
JP2014528568A (ja) * 2011-10-12 2014-10-27 リンデール インコーポレイテッド 組み合わされた照明および空調設備
JP2013088042A (ja) * 2011-10-19 2013-05-13 Takahashi Setsubi Co Ltd 天井カセット型空調機用照明装置及び天井カセット型空調機
CN102829511B (zh) * 2011-12-20 2014-07-30 Lg电子株式会社 空气调节器
CN103759342B (zh) * 2011-12-20 2017-04-12 Lg电子株式会社 空气调节器
CN103759342A (zh) * 2011-12-20 2014-04-30 Lg电子株式会社 空气调节器
EP2607799A1 (fr) * 2011-12-20 2013-06-26 LG Electronics, Inc. Climatiseur et méthode de contrôle
CN102829511A (zh) * 2011-12-20 2012-12-19 Lg电子株式会社 空气调节器
USD926963S1 (en) 2012-05-15 2021-08-03 Airius Ip Holdings, Llc Air moving device
USD783795S1 (en) 2012-05-15 2017-04-11 Airius Ip Holdings, Llc Air moving device
US10641506B2 (en) 2013-12-19 2020-05-05 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US10024531B2 (en) 2013-12-19 2018-07-17 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US11092330B2 (en) 2013-12-19 2021-08-17 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US11221153B2 (en) 2013-12-19 2022-01-11 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US9702576B2 (en) 2013-12-19 2017-07-11 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US10655841B2 (en) 2013-12-19 2020-05-19 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
CN103836727A (zh) * 2014-02-25 2014-06-04 广东美的制冷设备有限公司 落地式空调室内机
US10221861B2 (en) 2014-06-06 2019-03-05 Airius Ip Holdings Llc Columnar air moving devices, systems and methods
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FI20085999A (fi) 2010-04-23
EP2344814A4 (fr) 2015-04-01
EP2344814B1 (fr) 2018-11-28
FI20085999A0 (fi) 2008-10-22
EP2344814A1 (fr) 2011-07-20

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