[go: up one dir, main page]

EP2280176B1 - Querstromlüfter und klimaanlage damit - Google Patents

Querstromlüfter und klimaanlage damit Download PDF

Info

Publication number
EP2280176B1
EP2280176B1 EP09742709.0A EP09742709A EP2280176B1 EP 2280176 B1 EP2280176 B1 EP 2280176B1 EP 09742709 A EP09742709 A EP 09742709A EP 2280176 B1 EP2280176 B1 EP 2280176B1
Authority
EP
European Patent Office
Prior art keywords
blade
impeller
pressure surface
notches
negative pressure
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
EP09742709.0A
Other languages
English (en)
French (fr)
Other versions
EP2280176A1 (de
EP2280176A4 (de
Inventor
Hironobu Teraoka
Shimei Tei
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 EP2280176A1 publication Critical patent/EP2280176A1/de
Publication of EP2280176A4 publication Critical patent/EP2280176A4/de
Application granted granted Critical
Publication of EP2280176B1 publication Critical patent/EP2280176B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/06—Helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
    • 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
    • F24F1/0025—Cross-flow or tangential 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
    • 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

Definitions

  • the present invention relates to a crossflow fan and an air conditioner having the crossflow fan.
  • Crossflow fans are known as air blowers as used in an indoor unit of a wall-mounted air conditioner.
  • Fig. 14 shows one example of a crossflow fan.
  • a crossflow fan 104 is a type of fan through which air flow crosses transversely, and includes an impeller 141 formed by a number of blades 142.
  • the blades 142 are forward-swept blades, in each of which the outer edge is located on the leading side from the inner edge with respect to the rotation direction Z1.
  • cooled or heated air flow X that is, conditioned air flow
  • an indoor unit 1 of the air conditioner transversely passes through the impeller 141, in a plane perpendicular to the rotation axis Z of the impeller 141.
  • FIGs. 15(a) and 15(b) are perspective views showing an impeller blade of such a crossflow fan. As shown in Figs. 15(a) and 15(b) , a plurality of notches 242b are formed at predetermined intervals at an outer edge 242a of a plate-like blade 242. A straight section 242c is formed between each adjacent pair of the notches 242b. As shown in Fig.
  • each notch 242b extends in a direction substantially perpendicular to the sides of the blade 242.
  • the notches 242b which are formed in the blade 242 as described above, reduce trailing vortices (not shown) generated at an outlet region M of a crossflow fan 204. In other words, a simple modification to the shape of the blade 242 effectively reduces the noise of the crossflow fan 204.
  • JP 2008 002378 A discloses a multiblade fan intermittently or continuously provided with the cutout parts on an outer peripheral side blade end of a blade, the shapes of the cutout parts are made different on the blade positive pressure face side and the negative pressure face side. By directing the flow of air blown out from the fan in the circumferential direction, the pressure of the flow can be effectively raised.
  • EP 1795755 A1 discloses an impeller which is provided for a blower having a blade, a plurality of notches provided at predetermined intervals on a side edge of the blade, and a plurality of smooth portions each provided between a pair of the notches. Since a transverse vortex discharged from the side edge of the blade, and on a large scale, is organized by vertical vortexes formed in the notches on a small scale so as to be segmented into stable transverse vortexes, it becomes possible to reduce aerodynamic noise.
  • JP 10-252689 A discloses a cross flow fan and the cross flow fan loading air conditioner for blowing means which are provided as blowing means, such as an air conditioner.
  • a crossflow fan according to the present invention is defined by claim 1.
  • the predetermined intervals may be the same intervals or may vary according to the position in the longitudinal direction of the blade.
  • the negative pressure corner which connects the bottom of each notch with the negative pressure surface, may be rounded.
  • the positive pressure corner which connects the bottom of each notch with the positive pressure surface, may be rounded.
  • each notch may be formed as a smooth curved surface that protrudes as a whole outward of the impeller.
  • the predetermined intervals may be the same intervals or may vary according to the position in the longitudinal direction of the blade.
  • the notches are preferably V-shaped as viewed from the negative pressure surface and the pressure surface of the blade, According to this configuration, a greater pressure receiving area of the blade is ensured compared to a case where the notch has a rectangular shape.
  • the present invention also provides an air conditioner having a crossflow fan having the above described configuration.
  • the notches are formed in the outer edge of the blade, noise is effectively reduced with a simple structure.
  • At least one of the positive pressure corner and negative pressure corner, which connects the bottom of the notch with the positive pressure surface and the negative pressure surface, respectively, is rounded. Therefore, air that flows into the notches from the outer side of the blade is allowed to flow smoothly into the impeller along the negative pressure surface and the positive pressure surface. This reduces the collision loss generated when air flows in from outside of the blade. As a result, required increased power output from the electric motor driving the crossflow fan caused by the formation of the notches in the blades can be reduced.
  • an air conditioner includes a wall-mounted indoor unit 1.
  • the indoor unit 1 includes a main casing 2, a heat exchanger 3 arranged in the main casing 2, and a crossflow fan 4.
  • the crossflow fan 4 has an impeller 41 having plate-like blades 42.
  • the impeller 41 is driven by an electric motor (not shown) to compress and send air from an inlet region N to an outlet region M.
  • Air inlet ports 21 are provided in upper and front face of the main casing 2.
  • An air outlet port 22 is provided in a lower face of the main casing 2.
  • vertical flaps 23 and a horizontal flap 24 for adjusting the direction of air discharged from the air outlet port 22 are provided.
  • a guide portion 25 is formed in the main casing 2 at a position in the vicinity of the outlet region M of the crossflow fan 4.
  • the guide portion 25 defines the passage of air discharged by the crossflow fan 4.
  • a backflow preventing tongue 26 is formed at the air outlet port 22.
  • the backflow preventing tongue 26 separates the outlet region M and the inlet region N from each other, thereby preventing discharged air from flowing back.
  • the heat exchanger 3 is located between the air inlet port 21 and the impeller 41, and formed by a front heat exchanging section 3a and a back heat exchanging section 3b.
  • the front heat exchanging section 3a is located in the main casing 2 near the front face.
  • the back heat exchanging section 3b is continuously formed at the top of the front heat exchanging section 3a, and is located in the main casing 2 near the back face.
  • the impeller 41 of the crossflow fan 4 is formed by a great number of the blades 42, circular support plates 43, and an input shaft 44.
  • the support plates 43 support the blades 42 and are located on the rotation axis A1 of the impeller 41.
  • the input shaft 44 is connected to the electric motor and extends along the rotation axis A1.
  • the support plates 43 are arranged parallel to each other at predetermined intervals along the rotation axis A1 of the impeller 41, or the longitudinal direction of the blades 42.
  • the blades 42 are fixed to peripheral portions 43a of the support plates 43 and arranged between adjacent two support plates 43 to extend parallel to the rotation axis A1.
  • each blade 42 will be described with reference to Figs. 3 and 4 .
  • the blades 42 are forward-swept. That is, each blade 42 is inclined such that the outer edge 42a is located on the leading side of the inner edge 42d with respect to a rotation direction Z1 of the impeller 41.
  • the face of each blade 42 that is located on the leading side of the rotation direction Z1 forms a positive pressure surface 42p, and a face located on the trailing side forms a negative pressure surface 42q.
  • the blade 42 is also curved such that the outer edge 42a is located on the leading side of the inner edge 42d with respect to the rotation direction Z1 of the impeller 41.
  • Notches 42b are formed at the outer edge 42a of the blade 42.
  • the notches 42b are arranged at predetermined intervals along the rotation axis A1 of the impeller 41.
  • the notches 42b are V-shaped when viewed from the negative pressure surface 42q and the positive pressure surface 42p of the blade 42.
  • a basic shape section 42c is formed between each adjacent pair of the notches 42b.
  • the basic shape sections 42c form the curved basic shape of the blade 42.
  • the width of the space between adjacent notches 42b may be constant or may vary. For example, as shown in Figs. 3 and 4 , each end 6a of the blade 42 with respect to the rotation axis A1 is close to the corresponding support plate 43.
  • the flow velocity of air flow X at each end 6a is greater than that in a center 6b of the blade 42 in the rotation axis A1.
  • the space between notches 42b at each end 6a of the blade 42 is greater than the space between notches 42b at the center 6b of the blade 42. This ensures a sufficient pressure receiving area at each end 6a of the blade 42.
  • the notches 42b may have the same size, but may have different sizes depending on position on the rotation axis A1. In the present embodiment, notches 42b at each end 6a of the blade 42 in the rotation axis A1 have a smaller size than notches 42b at the center 6b of the blade 42. This ensures a sufficient pressure receiving area at each end 6a of the blade 42.
  • the notches 42b formed at the outer edge 42a of the blade 42 at predetermined intervals, and the basic shape sections 42c are each formed between adjacent notches 42b as shown in Fig. 4 . This reduces trailing vortices (not shown) generated at the outlet region M of the crossflow fan 4, so that noise is reduced with a simple structure.
  • the notches 42b are V-shaped when viewed from the negative pressure surface 42q and the positive pressure surface 42p of the blade 42. Thus, compared to a case where notches 42b have rectangular shapes, the pressure receiving area of the blade 42 is enlarged.
  • Fig. 5 is a cross-sectional view of the blade 42 taken along line 5-5 of Fig. 4
  • Fig. 6 is a perspective view showing a cross section of a notch 42b.
  • the bottom 42y of the notch 42b is connected to the negative pressure surface 42q at a negative pressure corner 42m, and connected to the positive pressure surface 42p at a positive pressure corner 42n.
  • the negative pressure corner 42m and the positive pressure corner 42n are both rounded.
  • each notch 42b which extends perpendicularly to the negative pressure surface 42q of the blade 42, and the negative pressure surface 42q are smoothly connected to each other by the negative pressure corner 42m.
  • the bottom 42y of each notch 42b, which extends perpendicularly to the positive pressure surface 42p of the blade 42, and the positive pressure surface 42p are smoothly connected to each other by the positive pressure corner 42n. Therefore, the length of the bottom 42y, which extends perpendicularly to the positive pressure surface 42p and the negative pressure surface 42q, is less than that of the bottom 242y of the prior art notch 242b (see Fig. 16 ).
  • the negative pressure corner 42m and the positive pressure corner 42n are rounded to form smooth and curved surfaces. This allows the air flow X that flows into the notches 42b from outside of the blade 42 to flow smoothly along the negative pressure surface 42q and into the impeller 41. As a result, the collision loss generated when the air flow X flows from outside of the blade 42 into the notches 42b is reduced.
  • the crossflow fan 4 according to the present embodiment has the following advantages.
  • the air conditioner of the present embodiment has the crossflow fan 4, which achieves the advantages (1) and (2).
  • the air conditioner therefore achieves the same advantages as the advantages (1) and (2).
  • the negative pressure corner 42m and the positive pressure corner 42n are both rounded. Instead, only one of the negative pressure corner 42m and the positive pressure corner 42n may be rounded.
  • Fig. 8 illustrates a configuration in which only the negative pressure corner 42m is rounded.
  • Fig. 9 illustrates a configuration in which only the positive pressure corner 42n is rounded. Even with these configurations, the increase in power output required from the electric motor driving the crossflow fan 4 caused by the formation of the notches in the blades 42 can be reduced.
  • the bottom 42y of the notch 42b may be formed as a smooth curved surface that protrudes outward as a whole.
  • This structure allows the air flow X that flows into the notches 42b from outside of the blade 42 to flow smoothly along the negative pressure surface 42q or the positive pressure surface 42p and into the impeller 41. This further reduces the collision loss generated when air flows into the notches 42b from outside of the blade 42. As a result, required increased power output from the electric motor driving the crossflow fan can be reduced.
  • the notches 42b are V-shaped when viewed from the negative pressure surface 42q and the positive pressure surface 42p of the blade 42.
  • this configuration may be changed.
  • notches 42b may have a rectangular shape as viewed from the negative pressure surface 42q and the positive pressure surface 42p of the blade 42.
  • a cross sectional view taken along line 5-5 of Fig. 12 is the same as Fig. 5 .
  • the notches 42b are rectangular, the increase of the power output of the electric motor driving the crossflow fan 4 caused by the formation of the notches in the blades 42 can be reduced, as long as at least one of the negative pressure corner 42m and the positive pressure corner 42n is rounded.
  • the bottom 42y of the notch 42b may be formed as a smooth curved surface that protrudes as a whole outward of the impeller 41.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Claims (6)

  1. Querstromlüfter, umfassend ein Laufrad (41), das eine Vielzahl von Tragplatten (43), die sich auf einer Drehachse des Laufrads (41) befinden, und eine Vielzahl von plattenähnlichen Schaufeln (42), die an peripheren Abschnitten der Tragplatten (43) bereitgestellt sind, aufweist, wobei die Schaufeln (42) sich parallel zu der Drehachse erstrecken, wobei jede Schaufel (42) derart geneigt ist, dass ihre äußere Kante (42a) sich auf der führenden Seite ihrer inneren Kante (42d) in Bezug auf die Drehrichtung des Laufrads (41) befindet, wobei eine der Flächen jeder Schaufel (43), die auf der führenden Seite der Drehrichtung des Laufrads (41) liegt, eine positive Druckoberfläche (42p) bildet, wobei die Fläche auf der nachfolgenden Seite der Drehrichtung eine negative Druckoberfläche (42g) bildet,
    wobei eine Vielzahl von Einkerbungen (42b) auf der äußeren Kante (42a) jeder Schaufel (42) gebildet sind, wobei die Einkerbungen (42b) in vorbestimmten Intervallen entlang der Drehachse des Laufrads (41) angeordnet sind,
    dadurch gekennzeichnet, dass:
    mindestens eine von einer positiven Druckecke (42n) und einer negativen Druckecke (42m), welche den Boden (42y) jeder Einkerbung (42b) jeweils mit der positiven Druckoberfläche (42p) und der negativen Druckoberfläche (42g) verbinden, abgerundet ist.
  2. Querstromlüfter nach Anspruch 1, dadurch gekennzeichnet, dass die negative Druckecke, die den Boden jeder Einkerbung mit der negativen Druckoberfläche verbindet, abgerundet ist.
  3. Querstromlüfter nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die positive Druckecke, die den Boden jeder Einkerbung mit der positiven Druckoberfläche verbindet, abgerundet ist.
  4. Querstromlüfter nach Anspruch 1, dadurch gekennzeichnet, dass der Boden jeder Einkerbung als eine glatte gekrümmte Oberfläche ausgebildet ist, die als Ganze von dem Laufrad her nach außen hervorsteht.
  5. Querstromlüfter nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass jede Einkerbung, betrachtet von der negativen Druckoberfläche und der Druckoberfläche der Schaufel, V-förmig ist.
  6. Klimaanlage, gekennzeichnet durch den Querstromlüfter nach einem der Ansprüche 1 bis 5.
EP09742709.0A 2008-05-09 2009-04-30 Querstromlüfter und klimaanlage damit Active EP2280176B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008123449A JP4371171B2 (ja) 2008-05-09 2008-05-09 クロスフローファン及びこれを備えた空気調和機
PCT/JP2009/058448 WO2009136585A1 (ja) 2008-05-09 2009-04-30 クロスフローファン及びこれを備えた空気調和機

Publications (3)

Publication Number Publication Date
EP2280176A1 EP2280176A1 (de) 2011-02-02
EP2280176A4 EP2280176A4 (de) 2016-10-26
EP2280176B1 true EP2280176B1 (de) 2020-01-22

Family

ID=41264640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09742709.0A Active EP2280176B1 (de) 2008-05-09 2009-04-30 Querstromlüfter und klimaanlage damit

Country Status (8)

Country Link
US (1) US20110033306A1 (de)
EP (1) EP2280176B1 (de)
JP (1) JP4371171B2 (de)
KR (1) KR101233538B1 (de)
CN (1) CN101999044B (de)
AU (1) AU2009245176B2 (de)
ES (1) ES2784543T3 (de)
WO (1) WO2009136585A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130330184A1 (en) * 2012-06-08 2013-12-12 General Electric Company Aerodynamic element of turbine engine
JP6044165B2 (ja) * 2012-08-09 2016-12-14 ダイキン工業株式会社 多翼ファン及びこれを備える空気調和機の室内機
JP5747888B2 (ja) * 2012-09-28 2015-07-15 ダイキン工業株式会社 送風機
US9651057B2 (en) * 2013-12-19 2017-05-16 Regal Beloit America, Inc. Blower assembly including a noise attenuating impeller and method for assembling the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10252689A (ja) * 1997-03-17 1998-09-22 Mitsubishi Electric Corp クロスフローファン及びクロスフローファン搭載空気調和機

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3403893A (en) * 1967-12-05 1968-10-01 Gen Electric Axial flow compressor blades
JPH03210094A (ja) * 1990-01-11 1991-09-13 Matsushita Electric Ind Co Ltd クロスフローファン
NL9301910A (nl) * 1993-11-04 1995-06-01 Stork Prod Eng Windturbine.
JP3127850B2 (ja) * 1997-02-13 2001-01-29 ダイキン工業株式会社 プロペラファン用羽根車
JP3092554B2 (ja) * 1997-09-30 2000-09-25 ダイキン工業株式会社 遠心送風機及びその製造方法並びに該遠心送風機を備えた空気調和機
JPH11141494A (ja) * 1997-11-10 1999-05-25 Daikin Ind Ltd 多翼送風機の羽根車構造
JP4432865B2 (ja) * 2004-09-30 2010-03-17 ダイキン工業株式会社 送風機の羽根車およびそれを用いた空気調和機
JP4873845B2 (ja) * 2004-10-01 2012-02-08 三菱電機株式会社 空気調和機
JP3995010B2 (ja) * 2005-09-28 2007-10-24 ダイキン工業株式会社 多翼送風機の羽根車及びその製造方法
JP4973249B2 (ja) * 2006-03-31 2012-07-11 ダイキン工業株式会社 多翼ファン
JP4918650B2 (ja) * 2006-06-23 2012-04-18 ダイキン工業株式会社 多翼ファン
JP4433093B2 (ja) * 2008-05-09 2010-03-17 ダイキン工業株式会社 クロスフローファン及びこれを備えた空気調和機
CN102341601B (zh) * 2009-03-10 2014-07-23 大金工业株式会社 横流风扇和具有该横流风扇的空调机

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10252689A (ja) * 1997-03-17 1998-09-22 Mitsubishi Electric Corp クロスフローファン及びクロスフローファン搭載空気調和機

Also Published As

Publication number Publication date
EP2280176A1 (de) 2011-02-02
KR20100135831A (ko) 2010-12-27
KR101233538B1 (ko) 2013-02-14
WO2009136585A1 (ja) 2009-11-12
AU2009245176B2 (en) 2011-08-11
JP2009270530A (ja) 2009-11-19
JP4371171B2 (ja) 2009-11-25
ES2784543T3 (es) 2020-09-28
CN101999044A (zh) 2011-03-30
US20110033306A1 (en) 2011-02-10
CN101999044B (zh) 2012-10-17
AU2009245176A1 (en) 2009-11-12
EP2280176A4 (de) 2016-10-26

Similar Documents

Publication Publication Date Title
JP4973249B2 (ja) 多翼ファン
AU2006298249B2 (en) Centrifugal fan and air conditioner using the same
JP6041895B2 (ja) 空気調和機
EP2280175B1 (de) Querstromlüfter und klimaanlage damit
WO2013150569A1 (ja) 空気調和装置の室内機
CN101990604A (zh) 离心鼓风机
CN107923413B (zh) 送风机以及空气调节装置
US20130259669A1 (en) Cross flow fan and indoor unit of air-conditioning apparatus
KR102321173B1 (ko) 팬 및 이를 구비하는 공기 조화기 실내기
JP5744209B2 (ja) 空気調和機
JP4918650B2 (ja) 多翼ファン
EP2280176B1 (de) Querstromlüfter und klimaanlage damit
EP2902716B1 (de) Klimaanlage
JP4208020B2 (ja) 多翼ファンの羽根車
CN110506164B (zh) 螺旋桨式风扇及空调装置用室外机
US7673671B2 (en) Air conditioner
CN210832217U (zh) 空调机的室内机
JP2009281215A (ja) 空気調和機用室内機
US20120134794A1 (en) Fan and air-conditioning apparatus provided with fan
JP6710337B2 (ja) 空気調和機
JP4517955B2 (ja) 貫流送風機用羽根車および空気調和機
CN113167290B (zh) 叶轮、送风机以及空调机
CN116848323A (zh) 风机和室内机
JPH1183061A (ja) 空調用送風機

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20101026

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

DAX Request for extension of the european patent (deleted)
RA4 Supplementary search report drawn up and despatched (corrected)

Effective date: 20160922

RIC1 Information provided on ipc code assigned before grant

Ipc: F24F 1/00 20110101ALI20160916BHEP

Ipc: F04D 17/04 20060101AFI20160916BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20180911

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20190926

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1227079

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602009061055

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200122

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200614

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200522

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200423

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2784543

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20200928

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602009061055

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1227079

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200122

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20201023

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200430

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200430

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200430

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200430

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200122

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230525

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20240307

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240313

Year of fee payment: 16

Ref country code: FR

Payment date: 20240308

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240306

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20240507

Year of fee payment: 16