EP1471311A1 - Klimaanlage für Decken - Google Patents

Klimaanlage für Decken Download PDF

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Publication number
EP1471311A1
EP1471311A1 EP20040101668 EP04101668A EP1471311A1 EP 1471311 A1 EP1471311 A1 EP 1471311A1 EP 20040101668 EP20040101668 EP 20040101668 EP 04101668 A EP04101668 A EP 04101668A EP 1471311 A1 EP1471311 A1 EP 1471311A1
Authority
EP
European Patent Office
Prior art keywords
air
conditioner
conditioned
container
ceiling
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
EP20040101668
Other languages
English (en)
French (fr)
Other versions
EP1471311B1 (de
Inventor
Maurizio Enrico Tonin
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.)
Xiang SpA
Original Assignee
Xiang Srl
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 Xiang Srl filed Critical Xiang Srl
Publication of EP1471311A1 publication Critical patent/EP1471311A1/de
Application granted granted Critical
Publication of EP1471311B1 publication Critical patent/EP1471311B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • 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
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
    • 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
    • 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
    • F24F2013/0616—Outlets that have intake openings

Definitions

  • the present invention is about a ceiling type air-conditioner, suitable for being installed both on concrete walls and on the inspectable panels of a false ceiling.
  • This kind of air-conditioning systems comprises a mainly parallelepipedal container, inserted upside down in said cavity, for instance by pressure insertion, a fan and a heat exchanger placed inside said container.
  • the fan is closed at its bottom by a rim of substantially plane and square shape, having a central opening through which, in operation condition, passes the air taken from the room to be air-conditioned.
  • the fan for example of centrifugal or axial kind, sucks up the air from the room below, subsequently sending it to the heat exchanger, for example of coil kind, where the thermal exchange with the fluid circulating therein, either refrigerant fluid or water, is performed.
  • the heat exchanger being interposed between the fan and the container, usually surrounds the fan so that the thermal exchange is uniformly distributed around said fan.
  • the processed air is driven by the fan to the internal wall of the container, being shaped in order to create an air flow delivery conduit to four opposite and parallel in pairs outlet holes, externally obtained near each lateral edge of the rim.
  • Said outlet holes allow the return of the conditioned air to the room in which it has been sucked up, at the desired and proper temperature for air-conditioning the room.
  • the air-conditioning system is completed by a grid and an air filter placed above the grid, both applied on the rim at the central opening, a tank for collecting the condensate produced by the heat exchanger, placed below it, and proper deflecting blades placed along each of the aforesaid outlet holes.
  • These deflecting blades have the function of guiding the air flow direction inside the room according to the temperature of the air, set on the basis of the external and internal climatic conditions.
  • the deflecting blades are oriented in a substantially vertical direction in winter, when the conveyance of hot air into the room is required, while they are oriented in a substantially horizontal direction in summer for sending cold air in the room.
  • the prior art provides for outlet holes connected to the conditioned air delivery conduit according to different configurations.
  • a first embodiment is shown in the US patent No. 5,577,958, in which the conditioned air delivery conduit, placed between the heat exchanger and the internal side wall of the container, has a substantially constant cross section.
  • the air is slightly deflected to the air-conditioner vertical axis direction immediately before entering in the outlet hole, which has a cross sectional curved profile in the opposite direction, that is according a diverging direction from said vertical axis.
  • the conditioned air is forced to make two deflections in its way to the room below, with the outlet hole maintaining constant its cross section anyway, and consequently the air volume which flows therein from the air delivery conduit.
  • the inconvenience of this embodiment is related to the fact that the air outgoing from the air-conditioner is merged with the incoming air sucked up by the fan because the conditioned air outlet holes are near to the air to be conditioned inlet holes, with evident disadvantages in terms of efficiency of the system.
  • Each outlet hole is completely smooth and it is placed on the longitudinal surface of the conditioned air delivery conduit, so that said conditioned air is forced to make a single deflection, determined by the curved profile of the outlet hole, to a diverging direction from the vertical axis of the container.
  • this kind of ceiling type air-conditioner has a limitation related to the fact that the air flow is not completely distributed in a uniform way in the room to be air-conditioned, although the outlet holes are fairly distributed on the rim.
  • the object of the present invention is to overcome the aforesaid limitation.
  • a ceiling type air-conditioner which, according to the contents of the main claim, comprises:
  • the air-conditioner of the invention allows to distribute the conditioned air in the rooms in a more uniform way with respect of the air-conditioners of known type.
  • the invention maintains separate the outlet air flow from the inlet air flow in the air-conditioner, granting optimal use conditions and high efficiencies.
  • the air-conditioner of the invention is shown in Figures 1 and 2, where it is generally indicated with numeral 1, in installation condition, mounted on the ceiling S.
  • Figure 2 it is noticed in particular that it comprises a container 2, inserted in a cavity (not visible) made in the ceiling S according to a vertical axis Y, and an air-conditioning unit, generally indicated with numeral 3, which comprises a fan 4 and a heat exchanger 5.
  • an air-conditioning unit generally indicated with numeral 3, which comprises a fan 4 and a heat exchanger 5.
  • Both the heat exchanger 5, of coil kind in this case, and the fan 4, for example of axial kind, are placed inside the container 2, with the heat exchanger 5 surrounding the fan 4, forming a central suction conduit, generally indicated with numeral 6, of the air A from the room to be air-conditioned, and a peripheral delivery conduit, generally indicated with numeral 7 and defined by the space comprised between the heat exchanger 5 and the side wall 2a of the container 2, of the conditioned air A to the room to be air-conditioned.
  • the air-conditioner 1 then comprises a covering rim 8 for the container 2, abutting against the ceiling S, provided with an air A inlet hole 9 coaxial with the central suction conduit 6 and preferably but not necessarily with four outlet holes, visible in Figure 1 and generally indicated with numerals 10, 11, 12, 13, each of them disposed on the surface of the peripheral delivery conduit 7 of the air A.
  • Each of the outlet holes 10, 11, 12, 13 is bounded by a couple of mutually facing longitudinal surfaces, one concave and the other convex, visible in Figure 2 for the outlet hole 12 only and indicated with numerals 12a and 12b, which send the conditioned air A in the direction diverging from the vertical axis Y.
  • each concave longitudinal surface of the kind indicated with numeral 12a, comprises protuberances 14, better highlighted in Figure 1, fan-divergent to the room to be air-conditioned to mutually define directional conveying channels 15 of the conditioned air A.
  • said protuberances could be present on some, for instance two or three, of the outlet holes only.
  • protuberances could be placed along a portion of the length of each outlet hole only.
  • the protuberances could be obtained on the convex longitudinal surface of each outlet hole instead of on the concave longitudinal surface.
  • both the longitudinal surfaces of the outlet holes could have the aforesaid protuberances.
  • the internal wall 2a of the container 2 has a connection curvature 2d between the bottom 2b and the side wall 2c, which is inclined so that the peripheral delivery conduit 7 has a width progressively increasing from the bottom 2b to each of the outlet holes 10, 11, 12, 13.
  • the air-conditioner 1 comprises a grid 21 and a filter 22 of the air A to be air-conditioned, applied to the rim 8 at the inlet hole 9, with the filter 22 placed above the grid 21.
  • the air-conditioner 1 of the invention is furthermore provided by a collecting sump 16, shown in Figure 2, placed below the heat exchanger 5 and used for containing the condensate produced during the thermal exchange between the air A and the thermal exchange fluid circulating in the heat exchanger 5.
  • the convex longitudinal surface 12b has a mixtilinear profile formed by a curved portion 112b following the side wall 2c of the container 2 , a subsequent first rectilinear segment 212b inclined toward the ceiling S and joined to a second rectilinear segment 412b substantially parallel to the same ceiling S.
  • an edge 312b on the external wall of the rim 8 is obtained, whose function, together with the second rectilinear segment 412b , is to avoid the conditioned air A outgoing from the air-conditioner 1 to be directly sent against the ceiling S, condition that causes the well known formation of evident stains on the same ceiling S.
  • the air-conditioner 1 comprises four rotating blades 17, 18, 19, 20 each of them placed in the respective outlet hole 10, 11, 12, 13 parallel to the longitudinal surfaces which bound said outlet holes, mechanically or manually operable to deviate the outlet flow of the conditioned air A, as it will be better explained as follows.
  • protuberances 14 are preferably but non necessarily symmetrically disposed with respect to the axis of symmetry Z of the outlet hole 12, perpendicular to the development direction X of the longitudinal surfaces 12a, 12b.
  • each protuberance 14 comprises a linear portion 14a, disposed on the upper part 112a of the concave longitudinal surface 12a parallel to the axis of symmetry Z, and a portion 14b curved toward the corresponding side wall 12c, 12d of the outlet hole 12, placed on the end portion 212a of the concave longitudinal surface 12a, as it is evidenced in Figure 5.
  • the fan 4 sucks up the air A from the room to be air-conditioned and sends it to the heat exchanger 5 , where the thermal exchange with the fluid circulating therein, for example refrigerant fluid of well known type or water, takes place.
  • the fluid circulating therein for example refrigerant fluid of well known type or water
  • the fan 4 subsequently drives the air A to the peripheral delivery conduit 7 which sends it to the outlet holes 10, 11, 12, 13 and then to the room below to be air-conditioned.
  • the air A absorbs heat from the thermal exchange fluid, brought to a proper temperature, of the heat exchanger 5 .
  • the rotating blades 17, 18, 19, 20 are oriented downward, in a substantially vertical position so that the air A heated by the thermal exchange fluid is rapidly sent to the room below.
  • the air A transfers instead the heat to the thermal exchange fluid of the heat exchanger 5 and the rotating blades 17, 18, 19, 20 are oriented according to a substantially horizontal position, so that the cold air A is sent to the room to be air-conditioned according to a direction which is not harmful and not causes physical inconveniences to the persons present in the room.
  • each of the outlet holes 10, 11, 12, 13 allows to distribute in a more uniform way the conditioned air A in the room below with respect to the air-conditioners of the prior art.
  • said protuberances form directional conveying channels 15 fan-divergent to the room to be air-conditioned so that the air is spread out in said room in a more homogeneous way.
  • the particular configuration of the internal wall 2a of the container 2, inclined toward each of the outlet holes 10, 11, 12, 13 starting from the bottom 2b, allows to rapidly send the air A, just conditioned by the heat exchanger 5, to the room below thus increasing the efficiency of the air-conditioning system of the invention.
  • modifications to the air-conditioner of the invention can be provided, consisting for instance in a different shape of the protuberances on the longitudinal surfaces delimiting each of the outlet holes obtained on the covering rim.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Duct Arrangements (AREA)
  • Building Environments (AREA)
EP04101668A 2003-04-22 2004-04-21 Klimaanlage für Decken Expired - Lifetime EP1471311B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000021U ITVI20030021U1 (it) 2003-04-22 2003-04-22 Climatizzatore a soffitto
ITVI20030021 2003-04-23

Publications (2)

Publication Number Publication Date
EP1471311A1 true EP1471311A1 (de) 2004-10-27
EP1471311B1 EP1471311B1 (de) 2008-01-09

Family

ID=43725612

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04101668A Expired - Lifetime EP1471311B1 (de) 2003-04-22 2004-04-21 Klimaanlage für Decken

Country Status (4)

Country Link
EP (1) EP1471311B1 (de)
AT (1) ATE383549T1 (de)
DE (1) DE602004011137D1 (de)
IT (1) ITVI20030021U1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2012169110A1 (ja) * 2011-06-09 2015-02-23 三菱電機株式会社 空気調和機の室内機
CN104769368A (zh) * 2012-10-30 2015-07-08 三菱电机株式会社 空气调节机
EP3076088A1 (de) * 2015-03-31 2016-10-05 Fujitsu General Limited In raumdecke eingebettete klimaanlage
EP2626646A4 (de) * 2010-10-04 2018-03-28 Mitsubishi Electric Corporation Klimaanlage
WO2018235946A1 (ja) * 2017-06-23 2018-12-27 ダイキン工業株式会社 空調室内機

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08121857A (ja) * 1994-10-27 1996-05-17 Sanyo Electric Co Ltd 送風方向制御装置
US5577958A (en) * 1994-09-26 1996-11-26 Mitsubishi Denki Kabushiki Kaisha Wind direction adjusting device
WO2002014748A1 (fr) * 2000-08-11 2002-02-21 Daikin Industries,Ltd. Panneau decoratif et unite de diffuseur d'un climatiseur et climatiseur
US6470699B1 (en) * 2000-01-28 2002-10-29 Toshiba Carrier Corporation Ceiling cassette type air conditioner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5577958A (en) * 1994-09-26 1996-11-26 Mitsubishi Denki Kabushiki Kaisha Wind direction adjusting device
JPH08121857A (ja) * 1994-10-27 1996-05-17 Sanyo Electric Co Ltd 送風方向制御装置
US6470699B1 (en) * 2000-01-28 2002-10-29 Toshiba Carrier Corporation Ceiling cassette type air conditioner
WO2002014748A1 (fr) * 2000-08-11 2002-02-21 Daikin Industries,Ltd. Panneau decoratif et unite de diffuseur d'un climatiseur et climatiseur
EP1310743A1 (de) * 2000-08-11 2003-05-14 Daikin Industries, Ltd. Dekorative platte und luftverteiler für klimaanlage und klimaanlage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 09 30 September 1996 (1996-09-30) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2626646A4 (de) * 2010-10-04 2018-03-28 Mitsubishi Electric Corporation Klimaanlage
JPWO2012169110A1 (ja) * 2011-06-09 2015-02-23 三菱電機株式会社 空気調和機の室内機
CN104769368A (zh) * 2012-10-30 2015-07-08 三菱电机株式会社 空气调节机
EP2918936A4 (de) * 2012-10-30 2016-07-27 Mitsubishi Electric Corp Klimaanlage
US9995504B2 (en) 2012-10-30 2018-06-12 Mitsubishi Electric Corporation Air conditioner having air outlet louver with varying curvature
EP3076088A1 (de) * 2015-03-31 2016-10-05 Fujitsu General Limited In raumdecke eingebettete klimaanlage
WO2018235946A1 (ja) * 2017-06-23 2018-12-27 ダイキン工業株式会社 空調室内機

Also Published As

Publication number Publication date
DE602004011137D1 (de) 2008-02-21
ATE383549T1 (de) 2008-01-15
ITVI20030021U1 (it) 2004-10-23
EP1471311B1 (de) 2008-01-09

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