WO2007010936A1 - 軸流ファン - Google Patents

軸流ファン Download PDF

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Publication number
WO2007010936A1
WO2007010936A1 PCT/JP2006/314259 JP2006314259W WO2007010936A1 WO 2007010936 A1 WO2007010936 A1 WO 2007010936A1 JP 2006314259 W JP2006314259 W JP 2006314259W WO 2007010936 A1 WO2007010936 A1 WO 2007010936A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
outer peripheral
rear edge
edge portion
vortex
Prior art date
Application number
PCT/JP2006/314259
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
Jiro Yamamoto
Masahiro Shigemori
Kouji Somahara
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.
Priority to AU2006270875A priority Critical patent/AU2006270875B2/en
Priority to US11/922,599 priority patent/US20080253897A1/en
Priority to CN200680022040XA priority patent/CN101203680B/zh
Priority to EP06768285A priority patent/EP1906028A4/en
Publication of WO2007010936A1 publication Critical patent/WO2007010936A1/ja

Links

Classifications

    • 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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/384—Blades characterised by form
    • 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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/388—Blades characterised by construction
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/307—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the tip of a rotor blade
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

Definitions

  • the present invention relates to the structure of an axial fan such as a propeller fan.
  • the air conditioner outdoor unit includes a box-shaped casing 1.
  • An air suction port 10 a is provided on the back surface of the casing 1.
  • a heat exchanger 2 is arranged adjacent to the air inlet 10a.
  • a fan motor 12 and a blower unit 3 driven by the fan motor 12 are disposed downstream of the heat exchanger 2.
  • the fan motor 12 is fixed to the casing 1 via a bracket (not shown).
  • the blower unit 3 includes a propeller fan 4 as an axial fan. As shown in FIGS. 6 to 8, the propeller fan 4 includes a hub 14 and a plurality of blades 13. Each blade 13 is integrated with the outer peripheral surface of the hub 14. The propeller fan 4 is coupled to the drive shaft 12a of the fan motor 12.
  • the blower unit 3 includes a bell mouth 5 disposed near the outer periphery of the propeller fan 4 and a fan guard 6 disposed in front of the propeller fan 4. The bell mouth 5 divides the suction area X located behind the propeller fan 4 and the blowing area Y located forward.
  • a propeller fan having a bent portion 13c along the outer peripheral edge of each blade 13 has been proposed (see, for example, Patent Document 1). ).
  • the bent portion 13c is formed by bending the outer peripheral edge of the blade 13 to the suction surface 13e side (suction side).
  • the width d of the bent portion 13c is gradually increased from the front edge portion 13a of each blade 13 to the rear edge portion 13b according to the direction of force.
  • the airflow (A1) smoothly wraps around from the pressure surface 13d of each blade 13 through the bent portion 13c to the negative pressure surface 13e.
  • a vortex (A2) due to the airflow (A1) is formed in the vicinity of the outer peripheral edge of each blade 13.
  • the diameter of the vortex (A2) is small, interference between the vortex (A2) and the airflow (A3) of the suction surface 13e of each blade 13 is suppressed.
  • the diameter of the vortex (A2) gradually increases from the front edge portion 13a of each blade 13 toward the rear edge portion 13b.
  • the width d of each bent portion 13c is increased from the front edge portion 13a of each blade 13 toward the rear edge portion 13b, the above-mentioned is applied over the entire outer peripheral edge of each blade 13.
  • the vortex (A2) is difficult to separate from the suction surface 13e of each blade 13.
  • Patent Document 1 Japanese Patent No. 3629702
  • the maximum value of the width d of the bent portion 13c is preferably set to 15% or less of the length of each blade 13 to the outer peripheral end of the rotational center force.
  • the width d of the bent portion 13c is optimized, a certain decrease in the amount of pressure increase cannot be avoided.
  • each blade 13 is formed along an arc, and a straight line L connecting the base end and the outer peripheral edge of each blade 13 is formed. On the other hand, it protrudes shallowly and widely in the direction opposite to the rotation direction of each blade 13. As a result, the blade area of each blade 13 is sufficiently secured.
  • each blade 13 the portion where the blown-out wind speed becomes maximum is a region indicated by FF 'in FIG. Therefore, unless the blade area in this region is increased, the amount of pressure increase cannot be improved sufficiently.
  • An object of the present invention is to provide an axial fan that can effectively compensate for the shortage of the increase in static pressure that is reduced by bending the outer peripheral edge of a blade.
  • a plurality of blades (13) provided on the hub (14) and an outer peripheral edge of each blade (13) are respectively connected to each blade.
  • An axial fan provided with a bent portion (13c) formed by bending the negative pressure surface (13e) of (13) has a blown wind speed at the rear edge (13b) of each blade (13).
  • Protrusions (13f) are provided at the parts where the large pressure boosting work can be most effectively performed. It protrudes in the direction opposite to the rotation direction of each blade (13) with respect to a straight line L connecting the two.
  • each blade 13 a protrusion 13f is provided at a portion where pressure increase work with a large blowing wind speed can be most effectively performed. Then, the protrusion 13f is protruded in a direction opposite to the rotation direction of each blade 13 with respect to a straight line L connecting the base end of the rear edge portion of each blade 13 and the outer peripheral end. If the blade area of each blade 13 is increased in this way, it is possible to effectively compensate for the shortage of the increase in static pressure that is reduced by bending the outer peripheral edge of each blade 13 to the suction surface 13e. Therefore, it is possible to reduce the blowing sound and increase the efficiency of the blowing performance.
  • each bent portion (13c) is provided over the entire length from the front edge portion (13a) to the rear edge portion (13b) of each blade (13).
  • the airflow (A1) on the pressure surface 13d of each blade 13 smoothly circulates from the outer peripheral edge of each blade 13 to the negative pressure surface 13e, and a small diameter vortex (A2) is formed near the outer peripheral edge of each blade 13.
  • interference between the airflow (A3) and the vortex (A2) on the suction surface 13e of each blade 13 is suppressed.
  • each bending portion (13c) has a positional force between the front edge portion (13a) and the rear edge portion (13b) of each blade (13). It is provided in the part leading to. In that case, the air flow (A1) on the pressure surface 13d of each blade 13 smoothly flows from the outer peripheral edge of each blade 13 to the negative pressure surface 13e, and a small diameter vortex (A2) is formed near the outer peripheral edge of each blade 13. Thus, interference between the airflow (A3) and the vortex (A2) on the suction surface 13e of each blade 13 is suppressed.
  • each bent portion (13c) is gradually increased from the front edge (13a) to the rear edge (13b) of each blade (13). Yes.
  • the portion where pressure increase work with the highest blown air speed can be most effectively performed is that the radius of the axial fan is Rt, the radius of the hub 14 is Rh, and the rotational center of the axial fan is When the distance in the radial direction from O is R, this is a region where the value of (R—Rh) Z (Rt—Rh) is 0.65-0.85.
  • each blade is provided with a protrusion 13f that protrudes in a direction opposite to the rotational direction of the axial fan with respect to a straight line L connecting the base end and the outer peripheral end of each blade at the rear edge of each blade.
  • Increase 13 wing area In this way, it is possible to more effectively compensate for the shortage of the increase in static pressure that has been reduced by bending the outer peripheral edge of each blade to the suction surface.
  • FIG. 1 is a rear view showing a propeller fan and a bell mouth of this embodiment.
  • FIG. 2 is a perspective view showing a propeller fan.
  • FIG. 3 is a rear view showing the propeller fan.
  • FIG. 4 is a graph showing the relationship between the position of the trailing edge of the blade and the blowing wind speed.
  • FIG. 5 is a partially enlarged plan view showing a blade of a modified example.
  • FIG. 6 is a longitudinal sectional view showing the overall configuration of an air conditioner outdoor unit using a conventional propeller fan.
  • FIG. 7 is a rear view showing a conventional propeller fan.
  • FIG. 8 is a partial sectional view showing a sectional structure of a conventional propeller fan blade and its problems.
  • FIG. 9 is an explanatory view showing a vortex generation mechanism of a conventional propeller fan.
  • FIG. 10 is an explanatory view showing a vortex interference phenomenon of a conventional propeller fan.
  • FIG. 11 is an explanatory diagram showing vortex interference when the chord length of the blade is shortened for a conventional propeller fan.
  • FIG. 12 is a perspective view showing the basic shape of a blade that addresses the problems of a conventional propeller fan.
  • FIG. 13 is a cross-sectional view showing the vortex suppressing action of the propeller fan in FIG.
  • FIG. 14 is an explanatory diagram showing a vortex interference phenomenon of the propeller fan in FIG. 12.
  • FIG. 15 is a partially enlarged plan view showing a problem of the propeller fan in FIG. 12.
  • the propeller fan 4 includes a synthetic resin hub 14 and three blades 13. Each blade 13 is integrally formed on the outer peripheral surface of the hub 14.
  • the outer peripheral end of the front edge portion 13a and the outer peripheral end of the rear edge portion 13b of each blade 13 are arranged offset from the base end of each blade 13 in the rotation direction of each blade 13 respectively.
  • the outer peripheral edge of each blade 13 is bent to the negative pressure surface 13e side (suction side) of each blade 13 shown in FIG. 2 over the whole from the front edge portion 13a to the rear edge portion 13b.
  • the width d of each bent portion 13c is increased at a predetermined ratio as it goes from the front edge portion 13a of each blade 13 toward the rear edge portion 13b.
  • the maximum value of the width d of the bent portion 13c is determined from the viewpoint of effectively suppressing the generation of the vortex (A2) that does not reduce the air blowing performance of each blade 13, so It is desirable that it is 15% or less of the length from the center of 14) to the outer peripheral edge of each blade 13.
  • each blade 13 is provided with a protrusion 13f.
  • Each of the protrusions 13f is provided in a portion (the region indicated by the outer peripheral lines of the diameters ⁇ 1 to ⁇ 5 of the propeller fan 4 in FIG. 3) that can most effectively perform the pressurizing work with the highest blowing air speed.
  • Each protrusion 13f protrudes in a direction opposite to the rotational direction M of each blade 13 with respect to a straight line L (broken line in FIG. 3) connecting the base end and outer peripheral end of the rear edge portion 13b of each blade 13.
  • each protrusion 13f a portion that protrudes most in the direction opposite to the rotation direction M of each blade 13 is defined as a maximum protrusion T.
  • the maximum protrusion T is (R—Rh) Z (Rt— Rh) is set to an area where the value is 0.65-0.85.
  • the bent portion 13c is a region where the value of (1 ⁇ 13 ⁇ 41) 7 (13 ⁇ 4-13 ⁇ 41) is 0.9 to 1.0 (the diameters ⁇ 5 and ⁇ of the propeller fan 4 in FIG. (Between the outer peripheral lines of 6). Therefore, the protrusion 13f is preferably provided in a region where the value of (R—Rh) Z (Rt—Rh) is 0.65-0.85.
  • the maximum projecting portion T of the projecting portion 13f is on the inner diameter side of the boundary with the bent portion 13c (the outer peripheral line of the diameter ⁇ 5 of the propeller fan in FIG. 3), for example, a region where the blown air speed is the largest, , (R—Rh) / (Rt-Rh) is preferably provided in a region where the value is about 0.75.
  • the maximum protrusion T of the protrusion 13f is provided in a region where the value of (R — Rh) Z (Rt—Rh) is about 0.5. It has been. In this case, the amount of increase in static pressure at which the blown wind speed is small cannot be increased sufficiently for increasing the blade area of each blade 13.
  • each blade 13 is bent toward the negative pressure surface 13e side of each blade 13 from the front edge portion 13a to the rear edge portion 13b.
  • the air flow (A1) on the pressure surface 13d of each blade 13 smoothly flows from the outer peripheral edge of each blade 13 to the negative pressure surface 13e.
  • a small diameter vortex (A2) is formed in the vicinity of the outer peripheral edge of each blade 13.
  • the interference between the airflow (A3) and the vortex (A2) on the suction surface 13e of each blade 13 is suppressed.
  • each protrusion 13f is provided at a portion where pressure increase work with a high blown wind speed can be most effectively performed.
  • Each protrusion 13f protrudes in a direction opposite to the rotation direction of each blade 13 with respect to a straight line L connecting the base end and the outer peripheral end of the rear edge portion 13b of each blade 13. If the blade area of each blade 13 is increased in this manner, it is possible to effectively compensate for the shortage of the increase in static pressure that is reduced by bending the outer peripheral edge of each blade 13. Therefore, low noise Reduction and high efficiency of the air blowing performance can be realized.
  • each bent portion 13c is formed to increase from the front edge portion 13a of each blade 13 to the rear edge portion 13b as the directional force increases.
  • the vortex (A2) whose diameter increases from the leading edge 13a to the trailing edge 13b of each blade 13, the vortex (A2) is effectively applied from the leading edge 13a to the trailing edge 13b.
  • the vortex (A2) can be separated from the suction surface 13e of each blade 13.
  • the position of the maximum protrusion T is (R — Rh) Z (Rt —Rh) is set to an area where the value is 0.665-0.85.
  • each blade 13 of the propeller fan 4 the region where pressure increase work with a large blown wind speed can be most effectively performed is (R—Rh) Z (Rt—RhW O. 65-0. If the area of each blade 13 is increased by projecting that region in the direction opposite to the direction of rotation of the propeller fan 4, the static area reduced by bending the outer peripheral edge of each blade 13 can be obtained. The shortage of pressure increase can be compensated effectively.
  • the small vortex (A2) near the outer peripheral edge of each blade 13 is stabilized. Can be generated automatically. Further, a protrusion 13f is provided in a region where the blown wind speed is maximum at the rear edge portion 13b of each blade 13 to enlarge the blade area of each blade 13. In this way, even if the bent portion 13c is provided on the outer peripheral edge of each blade 13, noise can be reduced without reducing the amount of increase in static pressure. Therefore, it is possible to achieve both a reduction in blowing sound and a high efficiency in blowing performance. Further, since it is not necessary to increase the blade area of each blade 13 more than necessary, the occurrence of material loss can be suppressed as much as possible, and the propeller fan 4 can be reduced in weight and cost. .
  • the bent portion 13c may be provided in a portion from the position between the front edge portion 13a and the rear edge portion 13b to the rear edge portion 13b.
  • the position between the front edge portion 13a and the rear edge portion 13b is preferably a position offset from the front edge portion 13a to the rear edge portion 13b by about 25% of the entire outer peripheral edge of the blade 13.
  • the protrusion 13f is provided in a portion where the pressure increase work with a large blown wind speed can be most effectively performed at the rear edge portion 13b of the blade 13, thereby lowering the outer peripheral edge of each blade 13 by bending it.
  • the deficiency in the increased static pressure can be effectively compensated. Therefore, it is possible to achieve both reduction of blowing sound and high efficiency of blowing performance.
  • the blade is embodied in a thin blade structure
  • the present invention is not limited to the thin blade structure, and can be applied to, for example, a thick structure blade, various airfoil blades, and the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
PCT/JP2006/314259 2005-07-21 2006-07-19 軸流ファン WO2007010936A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2006270875A AU2006270875B2 (en) 2005-07-21 2006-07-19 Axial flow fan
US11/922,599 US20080253897A1 (en) 2005-07-21 2006-07-19 Axial Flow Fan
CN200680022040XA CN101203680B (zh) 2005-07-21 2006-07-19 轴流风扇
EP06768285A EP1906028A4 (en) 2005-07-21 2006-07-19 AXIAL FAN

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005-211542 2005-07-21
JP2005211542A JP5259919B2 (ja) 2005-07-21 2005-07-21 軸流ファン

Publications (1)

Publication Number Publication Date
WO2007010936A1 true WO2007010936A1 (ja) 2007-01-25

Family

ID=37668812

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/314259 WO2007010936A1 (ja) 2005-07-21 2006-07-19 軸流ファン

Country Status (7)

Country Link
US (1) US20080253897A1 (ko)
EP (1) EP1906028A4 (ko)
JP (1) JP5259919B2 (ko)
KR (1) KR20080009762A (ko)
CN (1) CN101203680B (ko)
AU (1) AU2006270875B2 (ko)
WO (1) WO2007010936A1 (ko)

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JP2010537286A (ja) * 2007-08-23 2010-12-02 グーグル・インコーポレーテッド 領域辞書の作成

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JP5287329B2 (ja) * 2009-02-17 2013-09-11 株式会社日立プラントテクノロジー ポンプインペラ
JP5322900B2 (ja) * 2009-11-27 2013-10-23 三洋電機株式会社 送風機のベルマウス構造
WO2011116231A2 (en) 2010-03-19 2011-09-22 Sp Tech Propeller blade
CN103185036B (zh) * 2011-12-28 2015-06-03 珠海格力电器股份有限公司 轴流风扇及具有其的空调器
CN103185037B (zh) * 2011-12-28 2015-12-02 珠海格力电器股份有限公司 轴流风扇及具有其的空调器
CN103486081B (zh) * 2012-06-11 2017-02-01 珠海格力电器股份有限公司 轴流风叶、风机及空调器室外机
WO2014102970A1 (ja) * 2012-12-27 2014-07-03 三菱電機株式会社 プロペラファン、送風装置、室外機
CN103967839B (zh) * 2013-01-30 2016-03-16 珠海格力电器股份有限公司 轴流风叶及具有其的空调器
JP6022031B2 (ja) 2013-02-14 2016-11-09 三菱電機株式会社 永久磁石埋込型電動機、圧縮機及び冷凍空調装置
CN104214139B (zh) * 2013-05-30 2016-12-28 台达电子工业股份有限公司 风扇
CN103835993B (zh) * 2014-02-24 2016-06-22 广东美的厨房电器制造有限公司 扩散吹风式扇叶和扇叶支架
CN103835992B (zh) * 2014-02-24 2016-06-22 广东美的厨房电器制造有限公司 扩散吹风式扇叶和扇叶支架
CN104895838A (zh) * 2014-03-05 2015-09-09 珠海格力电器股份有限公司 轴流风叶及轴流风机
JP6277415B2 (ja) * 2014-03-25 2018-02-14 パナソニックＩｐマネジメント株式会社 扇風機用のプロペラファン
KR101467168B1 (ko) * 2014-06-25 2014-12-01 장석호 환기 및 냉각용 무코어 도너츠형 모터팬
CN104358712A (zh) * 2014-11-28 2015-02-18 德清振达电气有限公司 一种安全高效的轴流风扇扇叶
WO2016117413A1 (ja) * 2015-01-20 2016-07-28 シャープ株式会社 プロペラファン、流体送り装置および成形用金型
JP6849366B2 (ja) * 2016-09-29 2021-03-24 山洋電気株式会社 リバーシブルフローファン
CN106640759A (zh) * 2016-12-13 2017-05-10 广东美的环境电器制造有限公司 轴流式风扇
CN106930962B (zh) * 2017-03-21 2023-09-26 莱克电气股份有限公司 一种扇叶结构及使用该扇叶结构的风扇
CN108151287A (zh) * 2017-12-04 2018-06-12 周亮 一种柜式空调内机固定架
CN114641619A (zh) * 2019-11-12 2022-06-17 三菱电机株式会社 轴流风扇、送风装置及制冷循环装置
CN112253537B (zh) * 2020-11-19 2022-03-22 泛仕达机电股份有限公司 一种仿生轴流风轮
CN114909325A (zh) * 2022-05-30 2022-08-16 华中科技大学 一种低噪声轴流风机叶片及轴流风机

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AU2006270875A1 (en) 2007-01-25
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CN101203680B (zh) 2010-11-03
EP1906028A1 (en) 2008-04-02
KR20080009762A (ko) 2008-01-29
AU2006270875B2 (en) 2010-04-01
JP5259919B2 (ja) 2013-08-07
EP1906028A4 (en) 2011-06-01

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