EP1008814B1 - Air outlet structure of air conditioners - Google Patents

Air outlet structure of air conditioners Download PDF

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Publication number
EP1008814B1
EP1008814B1 EP98931046A EP98931046A EP1008814B1 EP 1008814 B1 EP1008814 B1 EP 1008814B1 EP 98931046 A EP98931046 A EP 98931046A EP 98931046 A EP98931046 A EP 98931046A EP 1008814 B1 EP1008814 B1 EP 1008814B1
Authority
EP
European Patent Office
Prior art keywords
air
turbofan
blown
outlets
flap
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.)
Expired - Lifetime
Application number
EP98931046A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1008814A1 (en
EP1008814A4 (en
Inventor
Masashi Shiga-seisakusho Daikin FUKATSU
Seiji Shiga-seisakusho of Daikin Ind. Ltd. OKA
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.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
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 Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of EP1008814A1 publication Critical patent/EP1008814A1/en
Publication of EP1008814A4 publication Critical patent/EP1008814A4/en
Application granted granted Critical
Publication of EP1008814B1 publication Critical patent/EP1008814B1/en
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
    • 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
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/0328—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing with means for purifying supplied air
    • 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
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0022—Centrifugal or radial fans
    • 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
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • 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

Definitions

  • the present invention relates to an air outlet structure for air conditioners which perform room air conditioning.
  • an air conditioner in which a cross fin heat exchanger and a cross flow fan are disposed in a generally rectangular casing mounted on a wall surface, so that conditioning air is blown off from an air outlet provided on the underside of the casing.
  • an object of the present invention is to provide an air outlet structure for air conditioners which enables air conditioning to be performed so that the room temperature distribution becomes uniform while any draft feeling is eliminated, without involving the swing function of flaps.
  • the present invention provides an air outlet structure for air conditioners, which comprises: a casing; a turbofan whose axis is positioned in the casing along a back-and-forth direction and which blows off air, which has been sucked from a front side, radially outwardly with respect to the axis; and a heat exchanger disposed in the casing on the front side of the turbofan, the casing having outlets for blowing off the air, which has been blown off from the turbofan, in upper and lower, right and left directions, as well as flaps for controlling flow directions of the air blown off from the outlets, respectively, wherein a ranging distance of the air blown off from the upper outlet is larger than any ranging distance of the air blown off from the lower, right and left outlets.
  • blown-off air flows and circulates so as to engulf the indoor living space along the wall surface, the ceiling surface and the floor surface.
  • the ranging distance of air blown off from the upper outlet is larger than the ranging distances of air blown off from the lower-side, right-side and left-side outlets.
  • an angle of inclination of a direction of the air blown off from the upper outlet with respect to a plane vertical to the axis of the turbofan is larger than any angle of inclination of directions of air blown off from the lower, right and left outlets with respect to the plane vertical to the axis of the turbofan.
  • the angle of inclination of the direction of air blown off from the upper outlet with respect to a plane vertical to the axis of the turbofan is set larger than the angle of inclination of the directions of air blown off from the lower, right and left outlets with respect to a plane vertical to the axis of the turbofan, by which the air from the upper outlet is blown off forward and toward a wall surface opposite to the wall surface on which this indoor unit is mounted. Therefore, the ranging distance of the air blown off from the upper outlet can be made longer than the ranging distances of the air blown off from the lower, right and left outlets.
  • a length from front edge to rear edge of the upper flap is longer than any length from front edge to rear edge of the lower, right and left flaps.
  • the length from front edge to rear edge of the upper flap is set longer than the lengths from front edge to rear edge of the other flaps.
  • Fig. 1 is an exploded perspective view of main part of an indoor unit using the air outlet structure for air conditioners according to an embodiment of the present invention, where reference numeral 1 denotes a generally square-shaped bottom frame whose rear side is mounted on a room wall surface; 2 denotes a motor fixed via a motor fixing plate 12 to a mounting portion 11 provided at a generally center of the bottom frame 1; 3 denotes a turbofan whose axis is positioned in the bottom frame 1 along the back-and-forth direction and which is driven by the motor 2 so that the turbofan blows off air, which has been sucked from the front side, radially outwardly with respect to the axis; 4 denotes a bell mouth mounted on the bottom frame 1 on the front side of the turbofan 3; 5 denotes a heat exchanger mounted on the front side of the bell mouth 4; 6 denotes a front panel which is mounted on the bottom frame 1 on the front side of the heat exchanger 5 and which has a generally square-shaped suction port 6a
  • Fig. 2 shows a front view of the indoor unit in which the suction grille 7 and the front panel 6 shown in Fig. 1 have been removed.
  • the bottom frame 1 has an outlet 21 on the upper side, an outlet 22 on the lower side, an outlet 23 on the right side, an outlet 24 on the left side.
  • an upper flap 31, a lower flap 32, a right flap 33 and a left flap 34 are attached at the outlets 21, 22, 23, 24, respectively.
  • the upper flap 31, the lower flap 32, the right flap 33 and the left flap 34 are driven by an upper-flap stepping motor 41, a lower-flap stepping motor 42, a right-flap stepping motor 43 and a left-flap stepping motor 44, respectively, to control the flow directions of air blown off from the outlets 21, 22, 23, 24.
  • Fig. 3 is a sectional view as viewed from the line III - III of Fig. 2, where the turbofan 3 and the heat exchanger 5 are provided as thin type ones while the motor 2 mounted on the bottom frame 1 is accommodated in a recessed portion forming a curved surface 3a of the turbofan 3. Air sucked in from the front by the turbofan 3 is blown off from the upper-and-lower, right-and-left outlets 21, 22 (only two outlets shown in Fig. 3) as indicated by arrows R1, R2 via the suction grille 7, the air filter 8 and the heat exchanger 5.
  • air from the turbofan 3 is blown off obliquely upward in the front when the upper flap 31 is at a specified degree of openness, where the air flow direction becomes about 60 degrees with respect to a plane vertical to the axis of the turbofan 3.
  • air from the turbofan 3 is blown off obliquely downward in the front when the lower flap 32 is at a specified degree of openness, where the air flow direction becomes about 30 degrees with respect to a plane vertical to the axis of the turbofan 3.
  • the right outlet 23 and the left outlet 24 shown in Fig.
  • Fig. 4 is a schematic structural view of the indoor unit.
  • This indoor unit comprises the upper-flap stepping motor 41, the lower-flap stepping motor 42, the right-flap stepping motor 43 and the left-flap stepping motor 44 as a driving section, and a control unit 10 for controlling the stepping motors 41, 42, 43, 44, the turbofan 3 and the like.
  • the control unit 10 comprises a microcomputer, input/output circuits and the like, and has a flap control section 10a which outputs a control signal to the stepping motors 41, 42, 43, 44 responsive to the state of operation thereby to control the degree of openness of the upper flap 31, the lower flap 32, the right flap 33 and the left flap 34.
  • the stepping motors 41, 42, 43, 44 and the flap control section 10a of the control unit 10 constitute an air flow control unit.
  • Fig. 5 is a main-part sectional view of the upper-side outlet of the indoor unit for air conditioners
  • Fig. 6 is a main-part sectional view of the lower-side, right-side and left-side of the indoor unit. It is noted that Figs. 5 and 6 are purposed to explain in detail the air outlet structure of the indoor unit for air conditioners, which is different from the air outlet structure of the indoor unit shown in Fig. 3.
  • a guide portion 51 having a curved surface 51a gradually curved obliquely forward from the turbofan 3 side is placed on the rear side of an upper outlet 53 of a casing 50, while a guide portion 52 having a curved surface 52a gradually curved obliquely forward from the turbofan 3 side is placed on the front side of the outlet 53.
  • These guide portions 51, 52 define a blowoff passage for blowing off the conditioning air obliquely upward in the front.
  • an upper flap 54 rotatably supported by a rotating shaft 55. This upper flap 54, while opened at a specified degree of openness, has its front edge side gradually curved toward the turbofan 3 side so that air smoothly flows along the blowoff passage.
  • a plurality of vertical plates 56 (only one shown in Fig. 5) extending generally vertically at specified intervals are provided on the front side of the vane surface of the upper flap 54.
  • air flow is controlled by the guide portions 51, 52 and the upper flap 54 so that the direction of air blown off from the turbofan 3 comes to form an angle of about 60 degrees with a plane vertical to the axis of the turbofan 3.
  • the upper flap 54 is rotated along a direction of arrow R3.
  • a guide portion 61 having a curved surface 61a gradually curved obliquely forward from the turbofan 3 side is placed on the rear side of lower, right and left outlets 63 of the casing 50, and a guide portion 62 having a curved surface 62a gradually curved obliquely forward from the turbofan 3 side is placed on the front side of the casing 50.
  • these guide portions 61, 62 define a blowoff passage for blowing off the conditioning air from the outlet 63 obliquely downward in the front.
  • the guide portions 61, 62 define a blowoff passage for blowing off the conditioning air from the outlets 63 obliquely sideways and forward.
  • outlets 63 are mounted lower, right and left flaps 64 rotatably supported by a rotating shaft 65.
  • a plurality of vertical plates 66 (only one shown in Fig. 6) extending generally vertically at specified intervals are provided on the front side of the vane surface of the upper flap 64.
  • air flow is controlled by the guide portions 61, 62 and the flap 64 so that the direction of air blown off from the turbofan 3 is made obliquely downward and forward so as to form an angle of about 30 degrees with a plane vertical to the axis of the turbofan 3.
  • the turbofan 3 is rotated so that air is sucked in via the heat exchanger 5 from the axial front of the turbofan 3, flowing along the curved surface of a curved portion 3a of the turbofan 3, and conditioning air heat-exchanged by the heat exchanger 5 is blown off from the upper-and-lower, right-and-left outlets 21, 22, 23, 24 (shown in Fig. 2) radially outwardly.
  • the stepping motors 41, 42, 43, 44 are controlled by the flap control section 10a of the control unit 10 shown in Fig. 4 so that the degree of openness of the upper flap 31, the lower flap 32, the right flap 33 and the left flap 34 shown in Fig.
  • the indoor unit 70 of this invention when the indoor unit 70 of this invention is mounted on an indoor wall surface so that air is blown off in the four directions of upper and lower, right and left, air blown off in the four directions flows and circulates so as to engulf the indoor living space along the wall surface, the ceiling surface and the floor surface, thereby preventing people from feeling a draft in the living space S2 and thus improving the comfortableness in cooling and heating operation as shown in Fig. 8B.
  • the air blown off from the upper outlet 53 efficiently stirs air so as to engulf the living space in the room together with the flow of air blown off from the lower, right and left outlets 63, thereby circulating the warm air in upper part of the room particularly in the heating operation. Therefore, an air conditioning in which the indoor temperature distribution is uniform and which is free from any draft feeling can be attained without swinging the flaps, and the comfortableness can be improved.
  • the angle of inclination of the blowoff direction from the upper outlet 21 with respect to a plane vertical to the axis of the turbofan 3 has been set to about 60 degrees, which is larger than the about 30-degree angle of inclination of the blowoff direction from the lower, right and left outlets 22, 23, 24, the air from the upper outlet 21 is blown off toward a wall surface opposite to the wall surface on which the indoor unit is mounted.
  • the ranging distance of air blown off from the upper outlet 21 can be made longer than the ranging distance of the air blown off from the lower, right and left outlets 22, 23, 24.
  • the length from front edge to rear edge of the upper flap 54 is made longer than the lengths from front edge to rear edge of the lower, right and left flaps 64, a more effective air flow control can be achieved so that air can be easily blown off from the upper outlet 21 to the front.
  • the upper flap 54 is curved at its upstream side so that air blown off from the turbofan 3 is smoothly guided, thus making it easy particularly to blow off air to the front.
  • the direction of air blown off from the upper outlet 21 is set to about 60 degrees with respect to a plane vertical to the axis of the turbofan 3
  • the direction of air blown off from the lower outlet 22 is set to about 30 degrees with respect to a plane vertical to the axis of the turbofan 3
  • the direction of air blown off from the right and left outlets 23, 24 is set to about 30 degrees with respect to a plane vertical to the axis of the turbofan 3.
  • the ranging distance of air blown off from the upper outlet be larger than the ranging distance of air blown off from the lower, right and left outlets, and the angle of air flow blown off from the individual outlets may be set to any appropriate values.
  • the air outlet structure for air conditioners of the present invention is used for air conditioners that blow off conditioning air in upper and lower, right and left directions.
EP98931046A 1997-08-08 1998-07-10 Air outlet structure of air conditioners Expired - Lifetime EP1008814B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9215058A JP2947236B2 (ja) 1997-08-08 1997-08-08 空気調和機の吹出口構造
JP21505897 1997-08-08
PCT/JP1998/003103 WO1999008050A1 (fr) 1997-08-08 1998-07-10 Structure de sortie pour conditionneurs d'air

Publications (3)

Publication Number Publication Date
EP1008814A1 EP1008814A1 (en) 2000-06-14
EP1008814A4 EP1008814A4 (en) 2003-05-07
EP1008814B1 true EP1008814B1 (en) 2005-10-12

Family

ID=16666069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98931046A Expired - Lifetime EP1008814B1 (en) 1997-08-08 1998-07-10 Air outlet structure of air conditioners

Country Status (7)

Country Link
EP (1) EP1008814B1 (ja)
JP (1) JP2947236B2 (ja)
CN (1) CN1155779C (ja)
ES (1) ES2251089T3 (ja)
HK (1) HK1032620A1 (ja)
TW (1) TW377394B (ja)
WO (1) WO1999008050A1 (ja)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI105360B (fi) * 1999-03-10 2000-07-31 Halton Oy Suutin
JP3285023B2 (ja) * 1999-11-05 2002-05-27 ダイキン工業株式会社 天井埋込型空気調和装置
JP3624836B2 (ja) * 2001-01-15 2005-03-02 ダイキン工業株式会社 空気調和機の室内機
JP3624837B2 (ja) * 2001-02-01 2005-03-02 ダイキン工業株式会社 室内空気調和機
KR100445467B1 (ko) * 2001-04-20 2004-08-21 주식회사 엘지이아이 공기조화기의 실내기
DE50209367D1 (de) * 2002-11-20 2007-03-15 M & W Zander Gebaeudetechnik G Deckenkonvektor
AU2004271060B2 (en) * 2003-09-04 2008-07-17 Lg Electronics Inc. Indoor unit in air conditioner
WO2005085715A1 (en) * 2004-03-04 2005-09-15 Lg Electronics Inc. Indoor unit in air conditioner
CN100541014C (zh) * 2004-08-09 2009-09-16 乐金电子(天津)电器有限公司 空调的室内机
JP3852012B2 (ja) * 2004-08-25 2006-11-29 ダイキン工業株式会社 床置き型空気調和機
KR20070087829A (ko) * 2005-12-26 2007-08-29 엘지전자 주식회사 공기조화기의 실내기
EP1966544B1 (en) * 2005-12-26 2014-01-08 LG Electronics Inc. Indoor unit of air conditioner
WO2007086643A2 (en) * 2006-01-24 2007-08-02 Lg Electronics Inc. Indoor unit of air conditioner
WO2007086640A2 (en) * 2006-01-26 2007-08-02 Lg Electronics Inc. Indoor unit of air conditioner
JP4274229B2 (ja) * 2006-11-10 2009-06-03 ダイキン工業株式会社 空気調和機
JP4160090B2 (ja) * 2006-12-06 2008-10-01 ダイキン工業株式会社 空気調和機
JP4687741B2 (ja) * 2008-04-07 2011-05-25 ダイキン工業株式会社 空気調和機
JP5112239B2 (ja) * 2008-09-30 2013-01-09 三菱重工業株式会社 空気調和機
CN102345924B (zh) * 2011-10-20 2016-06-01 广东美的制冷设备有限公司 一种空调器室内机的出风装置
JP5267690B2 (ja) * 2012-02-03 2013-08-21 ダイキン工業株式会社 室内機
CN104390267B (zh) * 2014-10-31 2017-05-24 广东美的制冷设备有限公司 空调器及该空调器的送风方法
CN110056970A (zh) * 2019-05-10 2019-07-26 青岛海尔空调器有限总公司 壁挂式空调器室内机
CN111780243B (zh) * 2020-06-08 2022-09-30 海信空调有限公司 一种双出风口的空调器

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Also Published As

Publication number Publication date
TW377394B (en) 1999-12-21
JPH1163546A (ja) 1999-03-05
CN1155779C (zh) 2004-06-30
ES2251089T3 (es) 2006-04-16
WO1999008050A1 (fr) 1999-02-18
HK1032620A1 (en) 2001-07-27
CN1272912A (zh) 2000-11-08
EP1008814A1 (en) 2000-06-14
EP1008814A4 (en) 2003-05-07
JP2947236B2 (ja) 1999-09-13

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