EP2472190A1 - Gebläseeinheit und damit ausgestattete klimaanlage - Google Patents

Gebläseeinheit und damit ausgestattete klimaanlage Download PDF

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Publication number
EP2472190A1
EP2472190A1 EP09848667A EP09848667A EP2472190A1 EP 2472190 A1 EP2472190 A1 EP 2472190A1 EP 09848667 A EP09848667 A EP 09848667A EP 09848667 A EP09848667 A EP 09848667A EP 2472190 A1 EP2472190 A1 EP 2472190A1
Authority
EP
European Patent Office
Prior art keywords
fan
cross flow
flow fan
air
casing
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
EP09848667A
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English (en)
French (fr)
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EP2472190A4 (de
EP2472190B1 (de
Inventor
Takashi Matsumoto
Kenichi Sakoda
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP2472190A1 publication Critical patent/EP2472190A1/de
Publication of EP2472190A4 publication Critical patent/EP2472190A4/de
Application granted granted Critical
Publication of EP2472190B1 publication Critical patent/EP2472190B1/de
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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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • 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

Definitions

  • the present invention relates to a fan and an air-conditioning apparatus provided with the fan, and, more particularly, relates to a shape of a housing, a shape of a blade (blade, hereinafter also referred to as a blade) of a cross flow fan (tangential fan, hereinafter only referred to as cross flow fan) housed in the housing, and a shape of a casing, which guides an air flow, arranged adjacent to the fan.
  • a shape of a housing a shape of a blade (blade, hereinafter also referred to as a blade) of a cross flow fan (tangential fan, hereinafter only referred to as cross flow fan) housed in the housing
  • tangential fan tangential fan
  • a cross flow fan is widely used as an air blowing mechanism of air-conditioning apparatus, and includes a housing, a cross flow fan housed in the housing, a casing, which guides an air flow, arranged on a back side of and adjacent to the cross flow fan, and a stabilizer, which stabilizes a circular vortex, arranged on a front side of and adjacent to the cross flow fan.
  • the housing of the cross flow fan is substantially a rectangular parallelepiped.
  • the rectangular parallelepiped includes a plurality of rigid sides for supporting the housing, at least one outlet side provided with an air outlet port (hereinafter also referred to as an outlet), and at least one inlet side provided with an air inlet port (hereinafter also referred to as an inlet), and the respective sides are set such that the total number of sides are six.
  • the housing since the housing will have high rigidity and will be able to hold the load in a stable manner, the side of the rectangular parallelepiped having the largest area is often used as the rigid side. It is desirable to make the air inlet port as large as possible from a viewpoint of air intake efficiency. For this reason, two sides, which are the side opposite to the rigid side having the largest area and the side that has the second largest area, are typically used as the inlet sides. Further, a lattice-like grille is usually provided to the inlet port so as to conceal the inner structure of the housing and to prevent fingers from penetrating through.
  • the air outlet port is provided in another side that has the second largest area, and the two sides having the smallest area are used as the rigid sides.
  • a cross flow fan air from the air inlet ports on an upper side and a front side of the housing passes through pressure loss elements such as a filter and a heat exchanger and flows into the cross flow fan; the total pressure is elevated inside the cross flow fan, and the air is blown out to a casing side.
  • the rotation speed of the cross flow fan needs to be increased when a high air volume cannot be obtained. Accordingly, noise increases.
  • An example of an air-conditioning apparatus has been disclosed in which noise is suppressed while improving fan performance by specifying the positional relation between the rear gap created by the rear guider and the front gap created by the front guider and by specifying the angle made by the horizontal line and the line connecting the rotation center of the cross flow fan and the rear gap, as well as specifying the position of the tongue portion of the front guider (see PLT 1, for example).
  • an example of a cross flow fan including a plurality of impellers, in which a plurality of blades are held by end plates on both sides and support plates in a middle portion, connected together has been disclosed.
  • an outer peripheral blade angle is Bo
  • an inner peripheral blade angle is Bi
  • the number of blades is Z
  • a pitch chord ratio is T
  • the example has disclosed the relationship of the outer peripheral blade angle Bo, the inner peripheral blade angle Bi, the number of blades Z, and the pitch chord ratio T of the cross flow fan in order that the cross flow fan will have a high air volume and a high pressure while having a low noise (see PLT 2, for example).
  • an air-conditioning apparatus includes a cross flow fan and a stabilizer separating the suction side passage and the discharge side passage of the cross flow fan.
  • the stabilizer includes: a tongue portion that extends towards the rotation direction of the cross flow fan in which the side of the tongue portion opposing the cross flow fan is formed so that it reduces its clearance gap with the outer circle of the cross flow fan gradually towards the rotation direction of the cross flow fan; and a protruding portion that protrudes towards the interior of the cross flow fan, that is formed at the end portion of the tongue portion such that the clearance gap between the outer circle of the cross flow fan and the tongue portion becomes smallest, and that has a substantially triangular cross-sectional shape when taken along a line perpendicular to the direction of the fan axis where the clearance gap with the cross flow fan is the smallest.
  • the protrusion height Hs of the protruding portion from the side of the tongue portion opposing the cross flow fan is configured to be 25 % to 35 % of the dimension G 1 of the minimum clearance gap between the outer circle of the cross flow fan and the side of the tongue portion opposing the cross flow fan, and the angle of the apical angle of the protruding portion is configured to be 50° to 75° (see PTL 3, for example).
  • the aesthetic appearance of the front side of the housing has a large influence on consumers. Accordingly, there has been a strong demand for a configuration with no inlet on the front side. Further, there has also been a strong demand for the miniaturization of the product and hence, it is necessary to make the size factor ⁇ of the cross flow fan small.
  • the invention provides a fan disposed with a cross flow fan that can overcome the above drawbacks, and a cross flow fan with high air volume and high pressure as well as low noise even when an air inlet port is narrow.
  • a fan that is capable of suppressing noise as well as increasing fan performance even when the air inlet port is narrow can be obtained.
  • FIG. 1 is a cross-sectional view of an air-conditioning apparatus provided with a fan according to Embodiment 1 of the invention. Further, FIG. 2 is a perspective view of the air-conditioning apparatus provided with the fan according to Embodiment 1 of the invention.
  • a housing 1 in the drawings includes: a front panel la, which is one of a plurality of rigid sides supporting the housing 1, and is positioned at the front portion of the housing 1; a rear panel 1b, which is another one of the plurality of rigid sides, and is positioned opposite the front panel 1a; upper panel 1c, which is an inlet side provided with an air inlet port 4, and is positioned at the top portion of the housing 1; a bottom panel 1d, which is an outlet side provided with an air outlet port 8, and is positioned opposite to the upper panel 1c; and left and right side panels 1e and 1f, which are among the plurality of rigid sides supporting the housing 1, and are positioned at the side portions of the housing 1.
  • a cross flow fan 2 having a plurality of blades oriented in the fan rotation direction is arranged inside the housing 1, and heat exchangers 3 that are arranged in an inverted V-shape are provided in an air flow on the inlet side of the cross flow fan 2.
  • the heat exchangers 3 control temperature of air sucked from the outside into the cross flow fan 2 through gaps of an inlet grille 5, which is provided in the air inlet port 4, and a filter 6.
  • the casing 7 enlarges as it approaches the bottom panel 1d and is positioned on substantially the rear side and downstream of the cross flow fan 2.
  • the casing 7 constitutes an outlet side passage leading to the outlet port 8 to send out air that has been heat exchanged in the heat exchangers 3 to the room.
  • a stabilizer 9 is positioned adjacent to and facing the front side and substantially the bottom portion of the cross flow fan 2, and separates the inlet side passage and the outlet side passage of the cross flow fan 2.
  • Symbol A indicates a maximum inlet width of the inlet port 4 in the direction substantially orthogonal to the rotation axis of the cross flow fan 2, and symbol D indicates a diameter of the fan.
  • the fan that is provided with the cross flow fan 2 configured as above has a front panel 1a that is detachably disposed so that the filter 6 can be removed, but during sending of air, the front panel 1a is fixed at a position depicted in the figures.
  • the cross flow fan 2 rotates clockwise.
  • air in the room is sucked through the gap of the inlet grille 5 provided in the air inlet port 4, large dusts in the air are removed by the filter 6, and the air is split and is made to pass through the front side and the rear side of the heat exchanger 3.
  • the air that has passed through the heat exchanger 3 is cooled or heated, and then is sucked into the cross flow fan 2.
  • air that is blown out from the cross flow fan 2 to the casing 7 side is sent toward the outlet port 8 of the housing that opens in an oblique downward direction and is discharged into the room.
  • FIG. 3 is an enlarged cross-sectional view of the periphery of the cross flow fan related to the fan according to Embodiment 1 of the invention.
  • FIG. 4 is a cross-sectional view showing a single piece of blade of the cross flow fan related to the fan according to Embodiment 1 of the invention.
  • the cross flow fan 2 includes a plurality of blades 10.
  • the cross flow fan 2 includes 35 pieces of blades 10. Although the intervals of the blades 10 may be set equidistantly, non-equidistantly or at random, it is necessary to arrange the blades 10 such that favorable fanning efficiency is obtained.
  • an arrow B indicates the rotation direction
  • a dotted line C indicates a trajectory of an outer peripheral side of the blades 10
  • a dotted line E indicates a trajectory of an inner peripheral side of the blades 10.
  • the blade 10 includes a blade outer side 10a that is substantially arcuate and a blade inner side 10b that is substantially arcuate, and is arranged such that the blade inner side 10b is oriented toward the rotation direction of the blade 10.
  • the angle between the tangential line at the distal end portion of the blade 10 on the trajectory of an outer peripheral side of the blade, which is the trajectory of the distal end side of the blade 10, and the tangential line at a tip of the arc of the blade outer side 10a is denoted as an outer peripheral blade inflow angle ⁇ .
  • Fig. 5 shows the comparison results in percentage, in which the percentage is against the value that had the highest efficiency in the Embodiment.
  • a performance ratio (%) is taken on an axis of ordinates and a value of ⁇ is taken on an axis of abscissas.
  • symbol F indicates a preferable range of ⁇ of the fan of Embodiment 1 according to the invention.
  • ⁇ is, typically, 0.28 or less in view of preventing the momentum transfer efficiency to the fluid from dropping, which is caused by the acute angle between the blade of the fan and the flow of air. That is, when (A/D) takes a value close to the minimum value 1, ⁇ is 0.28 radian or less when ⁇ is 0.28 or less. This means that the outer peripheral blade inflow angle ⁇ is 16.1° or less. When the outer peripheral blade inflow angle ⁇ is less than 20°, the transfer of momentum by the blade to the fluid remarkably drops, and it will be necessary to increase the rotation speed. Hence, a fan is not configured to have ⁇ that is 0.28 or less.
  • the inlet width A and the fan diameter D will be the same.
  • a portion surrounded by a dotted line G indicates a part where the air flow is obstructed.
  • Performance drops in conventional fans since the standing vortex that obstructs the air flow exists considerably on the casing 7 side from the region connecting the stabilizer 9 and the center axis of the cross flow fan 2.
  • the position of the standing vortex is changed to a position substantially in the region connecting the stabilizer 9 and the center axis of the cross flow fan, and thus a flow field where there is no obstruction of flow is formed.
  • FIG. 7 shows a relationship between shaft power and fluid energy of the cross flow fan.
  • the fanning efficiency is higher, the greater the inclination.
  • fluid energy (W) is taken on an axis of ordinates and shaft power (W) is taken on an axis of abscissas.
  • W shaft power
  • the fan of Embodiment 1 of the invention has a greater inclination compared to that of the conventional fan. It has been confirmed by an experiment on the improvement effect of the flow field in FIG. 6 that the fanning efficiency is substantially greater than that of the conventional art. It is confirmed that the rotation speed can be lower for obtaining the same air volume, and, as a result, noise can be reduced.
  • Embodiment 1 of the invention description has been made with respect to an air-conditioning apparatus, substantially the same effects can be obtained with other apparatus with a fan mechanism with no heat exchanger or a filter.
  • Embodiment 1 a configuration of a fan has been disclosed in which generation of noise is suppressed while increasing fan performance when the air inlet port 4 is narrow by specifying the range of the outer peripheral blade inflow angle ⁇ .
  • the configuration of the fan will be specified by a function r( ⁇ ) that is defined based on a distance and angle from a rotation center of a cross flow fan, where ⁇ is an angle from a starting portion of a curve of an enlarged air flow path of a casing.
  • FIG. 8 is an enlarged cross-sectional view of the periphery of the cross flow fan related to the fan according to Embodiment 2 of the invention. It should be noted that configuration and operation of an air-conditioning apparatus provided with the fan of Embodiment 2 of the invention are the same as that of the aforementioned Embodiment 1, and description thereof will be omitted.
  • a casing 7 is formed integrally with a rear panel 1b of a housing 1 or is formed so as to be mountable to the rear panel 1b, and is disposed in a substantially curved shape so as to guide flow of air along an air flow discharge portion of a cross flow fan 2.
  • FIG. 9 is an enlarged cross-sectional view of the periphery of the cross flow fan related to the fan according to Embodiment 2 of the invention showing an enlarged area ratio ⁇ .
  • the enlarged area ratio is a ratio obtained by dividing the enlarged air flow path area (A1 + A2) by a sector area (A2) that has a radius r0 from the rotation center of the cross flow fan 2 and a center angle of 90°.
  • the enlarged area (A1 + A2) is an area surrounded by the curved line made by the enlarged air flow path of the casing 7, the line connecting the rotation center of the cross flow fan 2 to the starting portion (here, the starting portion is the portion indicating the starting point of the enlarged air flow path of the casing 7, which is defined by an arbitrary angle of 0 ⁇ ⁇ 1 ⁇ 90 against the direction orthogonal to the direction from the rotation center of the cross flow fan 2 to the air intake port 4 , and defined by the portion having the distance r0 from the rotation center of the cross flow fan), and a point where a straight line intersects the curved line of the enlarged air flow path, the straight line being a line that is, with respect to the rotation center of the cross flow fan, 90° from the line connecting the rotation center of the cross flow fan 2 to the starting portion.
  • the enlarged area ratio ⁇ is obtained as a ratio between an integral value of the function r( ⁇ ) for a region between the enlarged air flow path start angle ⁇ 1 and the angle ⁇ 2, which is an angle with respect to the direction extending from the center of rotation of the cross flow fan 2 perpendicular to the direction of the air inlet port 4 with an angle ⁇ from the start portion, and an integral value of a sector portion of the circle.
  • enlarged area ratio ⁇ (exp(2 ⁇ ⁇ ⁇ ⁇ /2)-exp(2 ⁇ ⁇ ⁇ 0)) / (2 ⁇ ⁇ ⁇ /2).
  • the function r( ⁇ ) is a function which determines the shape of a general air flow path referred to as a logarithmic spiral.
  • the function r( ⁇ ) is a function induced from the equation of continuity assuming that the flow is uncompressed and is without any loss and from the equation of flow line which is induced from the nature of the constant flow angle of the enlarged air flow path in solving the law of conservation of an angular momentum.
  • the shape of the casing 7 is not specified by r( ⁇ ) but is specified by an enlarged area ratio of the air flow path which is of primary importance to the character of the enlarged air flow path.
  • FIG. 10 shows the comparison results in percentage, in which the percentage is against the value that had the highest efficiency in the Embodiment.
  • a performance ratio (%) is taken on an axis of ordinates and a value of ⁇ is taken on an axis of abscissas.
  • symbol H indicates a preferable range of ⁇ of the fan of Embodiment 2 according to the invention.
  • the range of the enlarged area ratio ⁇ that increases the fanning efficiency has been compared in percentage based on the fractional factorial design of the design of experiments.
  • ⁇ is about 0.2 or 0.3
  • ⁇ is 1.39 or 1.66
  • only about 60% of the efficiency of the fan of Embodiment 2 is obtained.
  • the enlarged area ratio ⁇ is set to a range of 1.416 ⁇ ⁇ ⁇ 1.466 for the fan of Embodiment 2
  • greater fanning efficiency is obtained compared with conventional fans.
  • the rotation speed can be lower for obtaining the same air volume, and as a result, noise can be reduced.
  • FIG. 11(a) indicates the total pressure distribution diagram of air flow in the fan according to Embodiment 2 of the invention
  • FIG. 11(b) indicates the total pressure distribution diagram of air flow in the fan of the conventional art.
  • an air flow blown out from the cross flow fan 2 generates a flow along the casing 7 and hence, efficiency is largely lowered due to viscosity loss with the wall.
  • the fastest velocity portion of the air flow is created at the center of rotation between the casing 7 and the stabilizer 9 which is close to the velocity distribution of that of the Poiseuille's flow in which pressure loss is low, and, thus, fanning efficiency is increased.
  • FIG. 12 shows a relationship between shaft power and fluid energy of the cross flow fan 2.
  • the fanning efficiency is higher, the greater the inclination.
  • fluid energy (W) is taken on an axis of ordinates and shaft power (W) is taken on an axis of abscissas.
  • W shaft power
  • the fan of Embodiment 2 of the invention has a greater inclination compared to that of the conventional fan. It has been confirmed by an experiment on the improvement effect of the flow field in FIG. 11 that the fanning efficiency is substantially greater than that of the conventional art. It is confirmed that the rotation speed can be lower in obtaining the same air volume, and, as a result, noise can be reduced.
  • the explanation has been made by focusing on the case where the curve of the casing 7 is a logarithmic spiral.
  • the enlargement ratio of the air flow path is fundamentally important, and the curve may not be limited to the logarithmic spiral and may include a straight line section.
  • the preferable range of the enlarged area ratio ⁇ against the diameter D of the cross flow fan will be analyzed.
  • a casing enlargement curve can be set at a preferable range with the configuration of the fan of Embodiment 2 according to the invention.
  • loss caused by the air flow, which has been discharged from the blades of the cross flow fan, impinging the wall of the casing can be averted, and the momentum of the fluid transferred by the cross flow fan is not lost.
  • the fan performance is accordingly improved and, as a result, the input energy can be suppressed, reducing noise and vibration.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
EP09848667.3A 2009-08-25 2009-08-25 Gebläseeinheit und damit ausgestattete klimaanlage Active EP2472190B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2009/004088 WO2011024215A1 (ja) 2009-08-25 2009-08-25 送風機及びその送風機を備えた空気調和機

Publications (3)

Publication Number Publication Date
EP2472190A1 true EP2472190A1 (de) 2012-07-04
EP2472190A4 EP2472190A4 (de) 2016-03-16
EP2472190B1 EP2472190B1 (de) 2018-12-05

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EP09848667.3A Active EP2472190B1 (de) 2009-08-25 2009-08-25 Gebläseeinheit und damit ausgestattete klimaanlage

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US (1) US20120134794A1 (de)
EP (1) EP2472190B1 (de)
JP (1) JP5230814B2 (de)
CN (1) CN102575687B (de)
WO (1) WO2011024215A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10731881B2 (en) 2013-01-11 2020-08-04 Carrier Corporation Fan coil unit with shrouded fan

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103851695A (zh) * 2012-11-28 2014-06-11 珠海格力电器股份有限公司 空调室内机
KR102149736B1 (ko) * 2013-08-09 2020-08-31 삼성전자주식회사 공기 조화기의 실내기
CN114234286B (zh) * 2021-12-10 2023-03-28 珠海格力电器股份有限公司 一种空调器

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1939147A1 (de) * 1969-08-01 1971-02-11 Zenkner Dr Ing Kurt Vorrichtung zum Klimatisieren von Raeumen
JPS5993130A (ja) * 1982-11-19 1984-05-29 Sanyo Electric Co Ltd 空気調和機
JPS62126291A (ja) * 1985-11-26 1987-06-08 Mitsubishi Electric Corp 貫流形送風機
US4913622A (en) * 1987-01-30 1990-04-03 Sharp Kabushiki Kaisha Cross flow fan system
FR2619422B1 (fr) * 1987-08-13 1989-12-08 Onera (Off Nat Aerospatiale) Ventilateur a courant transversal
KR930006876B1 (ko) * 1989-06-23 1993-07-24 가부시끼 가이샤 히다찌세이사꾸쇼 관류팬을 사용한 송풍장치 및 공기조화기
JPH05280760A (ja) * 1992-03-30 1993-10-26 Mitsubishi Heavy Ind Ltd 空気調和機
JPH06323294A (ja) * 1993-05-11 1994-11-22 Taiheiyo Kogyo Kk クロスフローファン
JP3497073B2 (ja) * 1998-01-19 2004-02-16 三菱電機株式会社 貫流送風機
US6261051B1 (en) * 1998-09-02 2001-07-17 Gordon A. Kolacny Fan duct combination unit
EP1083391B1 (de) * 1999-09-07 2006-12-20 Lg Electronics Inc. Axiallüfter für Klimaanlage
JP3898411B2 (ja) * 2000-03-14 2007-03-28 三菱電機株式会社 貫流送風機の設計方法および空気調和機
JP2001280288A (ja) * 2000-03-31 2001-10-10 Daikin Ind Ltd 多翼送風機の羽根車構造
EP1321721B1 (de) * 2000-09-29 2008-08-06 Mitsubishi Denki Kabushiki Kaisha Klimaanlage
JP3764442B2 (ja) * 2002-09-05 2006-04-05 三菱電機株式会社 空気調和機及び貫流送風機及びクロスフローファンのスタビライザー
JP2007040543A (ja) * 2005-07-29 2007-02-15 Fujitsu General Ltd 空気調和機
JP2007040544A (ja) * 2005-07-29 2007-02-15 Fujitsu General Ltd 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
KR101436628B1 (ko) * 2007-10-23 2014-09-02 엘지전자 주식회사 횡류팬 및 공기 조화기

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10731881B2 (en) 2013-01-11 2020-08-04 Carrier Corporation Fan coil unit with shrouded fan

Also Published As

Publication number Publication date
EP2472190A4 (de) 2016-03-16
JP5230814B2 (ja) 2013-07-10
CN102575687A (zh) 2012-07-11
WO2011024215A1 (ja) 2011-03-03
EP2472190B1 (de) 2018-12-05
CN102575687B (zh) 2014-11-05
JPWO2011024215A1 (ja) 2013-01-24
US20120134794A1 (en) 2012-05-31

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