EP2581607A1 - Axialstromlüfter und Klimaanlage - Google Patents

Axialstromlüfter und Klimaanlage Download PDF

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Publication number
EP2581607A1
EP2581607A1 EP20120184410 EP12184410A EP2581607A1 EP 2581607 A1 EP2581607 A1 EP 2581607A1 EP 20120184410 EP20120184410 EP 20120184410 EP 12184410 A EP12184410 A EP 12184410A EP 2581607 A1 EP2581607 A1 EP 2581607A1
Authority
EP
European Patent Office
Prior art keywords
axial flow
flow fan
shroud
disposed
blades
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.)
Withdrawn
Application number
EP20120184410
Other languages
English (en)
French (fr)
Inventor
Jeongtaek Park
Deok Huh
Jaehyuk Jung
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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 LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP2581607A1 publication Critical patent/EP2581607A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • 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
    • F05D2240/304—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 trailing edge of a rotor blade

Definitions

  • the present disclosure relates to an axial flow fan and an air conditioner.
  • Air conditioners are used to heat or cool indoor areas.
  • Such an air conditioner includes: a compressor for compressing a refrigerant, a condenser for condensing the refrigerant discharged from the compressor, an expansion device for expanding the refrigerant discharged from the condenser, and an evaporator for evaporating the refrigerant expanded by the expansion device.
  • the condenser and the evaporator of the air conditioner are heat exchangers at which the refrigerant exchanges heat with surrounding air.
  • the condenser and the evaporator may be provided in indoor and outdoor units.
  • An axial flow fan may be provided at a side of a heat exchanger provided in an outdoor unit.
  • Such an axial fan includes a hub connected to a shaft of a motor and a plurality of blades provided on the outer surface of the hub.
  • the hub and the blades may be provided as one part. If the axial flow fan is rotated by the motor, air is sucked owing to a pressure difference between the front and rear sides of the blades formed on the outer surface of the hub.
  • outdoor air can be sucked into the outdoor unit by a suction force of the axial flow fan.
  • the outdoor air passes through the heat exchanger disposed at an entrance side of the outdoor unit and exchanges heat with a refrigerant flowing in the heat exchanger to condense or evaporate the refrigerant.
  • the outdoor air is discharged from the outdoor unit by the blowing action of the axial flow fan.
  • an axial flow fan comprising a hub, and a plurality of blades extending radially from an outer surface of the hub, wherein corrugated parts are disposed on at least portions of edges of the blades, respectively, and the corrugated parts comprise convex portions and concave portions that are alternately arranged.
  • the convex portions protrude upward from a surfaces of the blades.
  • the concave portions may also be recessed downward from the surfaces of the blades.
  • the corrugated parts may be disposed on trailing edges of the blades.
  • the convex portions and the concave portions may be alternately arranged along the trailing edges.
  • the convex portions and the concave portions are preferably reduced in size in a direction toward a center of the axial flow fan.
  • the corrugated parts may have S-shaped cross sections.
  • the convex portions and the concave portions may extend on surfaces of the blades toward leading edges of the blades by predetermined lengths.
  • the convex portions and the concave portions may extend concentrically to a center of the axial flow fan by predetermined lengths.
  • the convex portions may become lower and the concave portions may become shallower in directions toward the leading edges of the blades.
  • the invention also provides an air conditioner comprising a heat exchanger disposed in a case; an axial flow fan disposed at a side of the heat exchanger and comprising a plurality of blades; a compressor disposed at a side of the axial flow fan; and a barrier plate configured to separate a region in which the compressor is disposed from a region in which the axial flow fan and the heat exchanger are disposed, wherein corrugated parts are disposed on at least portions of trailing edges of the blades, respectively, and the corrugated parts comprise convex portions and concave portions that are alternately arranged.
  • the convex portions and the concave portions are preferably alternately arranged along the trailing edges.
  • the convex portions and the concave portions may be reduced in size in a direction toward a center of the axial flow fan.
  • the corrugated parts may have S-shaped cross sections.
  • the convex portions and the concave portions may extend on surfaces of the blades toward leading edges of the blades by predetermined lengths.
  • the convex portions may become lower and the concave portions may become shallower in directions toward the leading edges of the blades.
  • the invention further provides an air conditioner comprising a heat exchanger disposed in a case; an axial flow fan disposed at a side of the heat exchanger and comprises a plurality of blades; a compressor disposed at a side of the axial flow fan; a barrier plate configured to separate a region in which the compressor is disposed from a region in which the axial flow fan and the heat exchanger are disposed; and a shroud disposed at a front side of the axial flow fan to guide air discharged from the axial flow fan, wherein a shroud corrugated part is disposed on a discharge end of the shroud, and the shroud corrugated part comprises shroud convex portions and shroud concave portions that are alternately arranged.
  • the shroud corrugate part is continuous in a circumferential direction of the discharge end of the shroud.
  • the shroud convex portions and the shroud concave portions may extend toward an entrance end of the shroud by a predetermined length.
  • the shroud convex portions may become lower and the shroud concave portions may become shallower in a direction toward the entrance end of the shroud.
  • Embodiments provide an axial flow fan and an air conditioner. Corrugated parts are provided on blades of the axial flow fan to reduce wake currents and thus to increase the efficient of the axial flow fan and reduce noises when air is sucked and discharged by the axial flow fan.
  • an axial flow fan includes a plurality of blades.
  • the blades include corrugated parts on ends thereof.
  • the corrugated parts include convex portions and the concave portions that are alternately arranged.
  • an air conditioner in another embodiment, includes: a heat exchanger disposed in a case; an axial flow fan disposed at a side of the heat exchanger and comprising a plurality of blades; a compressor disposed at a side of the axial flow fan; and a barrier plate configured to separate a region in which the compressor is disposed from a region in which the axial flow fan and the heat exchanger are disposed, wherein each of the blades includes a corrugated part disposed on at least a portion of a trailing edge thereof , and the corrugated part includes convex portions and concave portions that are alternately arranged.
  • Fig. 1 is a front view illustrating an air conditioner according to a first embodiment.
  • Fig. 2 is a plan view illustrating the air conditioner according to the first embodiment.
  • Fig. 3 is a front view illustrating an axial flow fan according to the first embodiment.
  • Fig. 4 is a partial enlarged view illustrating the axial flow fan of Fig. 3 .
  • Fig. 5 is a side view of the axial flow fan to the first embodiment.
  • Fig. 6 is a partial enlarged view illustrating the axial flow fan of Fig. 5 .
  • Fig. 7 is a plan view illustrating an air conditioner according to a second embodiment.
  • Fig. 8 is a front view illustrating a shroud according to the second embodiment.
  • Fig. 1 is a front view illustrating an air conditioner 1 according to a first embodiment
  • Fig. 2 is a plan view illustrating the air conditioner 1 according to the first embodiment.
  • the air conditioner 1 of the first embodiment includes a case 10, a heat exchanger 20, a fan 100, a motor 30, a filter (not shown), a compressor 40, and a barrier plate 50.
  • the air conditioner 1 may mean an outdoor unit.
  • the case 10 includes: a rear panel 11 forming the rear side of the air conditioner 1; lateral panels 12 coupled to the rear panel 11 for forming the lateral sides of the air conditioner 1; a top panel 13 forming the topside of the air conditioner 1; a front panel 14 forming the front side of the air conditioner 1; and a base panel 15 coupled to the lateral panels 12, the rear panel 11, and the front panel 14 for forming the bottom side of the air conditioner 1.
  • the case 10 forms a hexahedral outer shape of the air conditioner 1.
  • At least one of the panels of the case 10 may be provided in one piece.
  • the rear panel 11 and the lateral panels 12 include a rear air entrance part (not shown) and a lateral air entrance part (not shown). Grill members (not shown) may be disposed on the air entrance parts to block foreign substances. In this case, outdoor air is introduced into the case 10 through the grill members disposed on the rear panel 11 and the lateral panel 12.
  • An air discharge part 16 may be formed in the front panel 14. Similarly, a grill member (not shown) may be disposed on the air discharge part 16.
  • the heat exchanger 20 is disposed in the case 10 for heat exchange between outdoor air and a refrigerant.
  • the heat exchanger 20 may be a fin-tube heat exchanger constituted by a refrigerant tube and a plurality of heat-exchange fins through which the refrigerant tube is inserted.
  • the heat exchanger 20 is disposed around an entrance side of the fan 100. In the air conditioner 1, the heat exchanger 20 makes contact with the rear panel 11 and one of the lateral panels 12. The heat exchanger 20 may be mounted on the base panel 15.
  • Air is introduced into the air conditioner 1 through the lateral air entrance part of the lateral panel 12 and the rear air entrance part of the rear panel 11. Then, the air passes through the heat exchanger 20.
  • the air introduced into the case 10 may be cooled or heated by a refrigerant flowing in the refrigerant tube while the air passes through the heat-exchange fins. Thereafter, the cooled or heated air is discharged through the air discharge part 16 of the front panel 14. Owing to this heat exchange, an indoor area can be kept in a comfortable environment.
  • the fan 100 is disposed at a side of the heat exchanger 20.
  • the fan 100 may be an axial flow fan 100 that sucks outdoor air and discharge the outdoor air while being rotated.
  • the axial flow fan 100 includes: a hub 110 connected to a shaft of the motor 30; and a plurality of blades 120 extending radially from the outer surface of the hub 110.
  • the hub 110 and the blades 120 may be formed in one piece.
  • Corrugated parts 125 may be formed on at least portions of edges of the blades 120 to reduce wake currents.
  • the blades 120 of the axial flow fan 100 will be described later in more detail.
  • the motor 30 is connected to the axial flow fan 100 to rotate the axial flow fan 100.
  • the shaft of the motor 30 may be connected to the hub 110 of the axial flow fan 100, and the motor 30 may be disposed at the rear side of the axial flow fan 100.
  • the motor 30 may be disposed between the axial flow fan 100 and the heat exchanger 20.
  • a motor support (not shown) may be coupled to the heat exchanger 20 or the rear panel 11 for supporting and fixing the motor 30.
  • the filter (not shown) is disposed close to the heat exchanger 20 to remove contaminants from air when air is introduced through the air entrance parts.
  • the filter may be disposed between the heat exchanger 20 and the rear panel 11 or between the heat exchanger 20 and the lateral panel 12.
  • the compressor 40 may be disposed at a side of the axial flow fan 100 to compress refrigerant to high temperature and high pressure.
  • the compressor 40 may have a cylindrical shape and be fixed to the base panel 15.
  • the compressor 40 is connected to the heat exchanger 20 so that refrigerant can flow from the compressor 40 to the heat exchanger 20 or from the heat exchanger 20 to the compressor 40.
  • the heat exchanger 20 functions as a condenser, and refrigerant discharged from the compressor 40 is introduced into the heat exchanger 20.
  • the heat exchanger 20 functions as an evaporator, and refrigerant discharged from the heat exchanger 20 is introduced into the compressor 40.
  • the barrier plate 50 divides the inside of the case 10 into a compartment in which the compressor 40 is disposed and a compartment in which the heat exchanger 20 and the axial flow fan 100 are disposed. Owing to the barrier plate 50, air does not flow unnecessarily to the compressor 40 after passing through the heat exchanger 20. That is, flows of air can be efficiently controlled, and heating/cooling performance can be kept high.
  • Fig. 3 is a front view illustrating the axial flow fan 100 according to the first embodiment
  • Fig. 4 is a partial enlarged view illustrating the axial flow fan 100 illustrated in Fig. 3
  • Fig. 5 is a side view illustrating the axial flow fan 100 according to the first embodiment
  • Fig. 6 is a partial enlarged view illustrating the axial flow fan 100 illustrated in Fig. 5 .
  • the axial flow fan 100 of the first embodiment includes the hub 110 and the blades 120.
  • a shaft (not shown) is coupled to the hub 110 to rotate the axial flow fan 100.
  • the blades 120 include: leading edges 121 formed at the front sides in a rotation direction of the blades 120; trailing edges 122 formed at the rear edges in the rotation direction of the blades 120; roots 123 which are inner ends of the blades 120; and tips 124 which are outer ends of the blades 120.
  • the corrugated parts 125 are formed on at least portions of edges of the blades 120.
  • the corrugated parts 125 include convex portions 125a and concave portions 125b that are alternately arranged.
  • Surfaces of the blades 120 facing the heat exchanger 20 are positive-pressure surfaces that receive a positive pressure by air passing through the heat exchanger 20, And surfaces of the blades 120 not facing the heat exchanger 20 are negative-pressure surfaces opposite to the positive-pressure surfaces.
  • the corrugated parts 125 may be formed on the trailing edges 122. When air introduced into the axial flow fan 100 along the leading edges 121 is discharged along the trailing edges 122, wake currents of the air can be removed by the corrugated parts 125.
  • the convex portions 125a and the concave portions 125b may be alternately arranged along the trailing edges 122 and may decrease in size as it goes to the center of the axial flow fan 100.
  • the flow rate of air discharging from the axial flow fan 100 along the trailing edges 122 may increase in a direction away from the center of the axial flow fan 100. Therefore, in the current embodiment, the convex portions 125a and the concave portions 125b distant from the center of the axial flow fan 100 may be greater than the convex portions 125a and the concave portions 125b close to the center of the axial flow fan 100 so as to suppress wake currents.
  • the term 'great(er)' means that the heights of convex portions or the depths of concave portions are great or the widths of convex and concave portions are great.
  • the corrugated parts 125 may have S-shaped cross sections. That is, the convex portions 125a and the concave portions 125b may be connected in a curved shape. This structure reduces wake currents while not disturbing a discharge flow of air, and thus a sufficient discharge flow rate can be assured.
  • the convex portions 125a may protrude upward from the surfaces of the blades 120, and the concave portions 125b may be recessed downward from the surfaces of the blades 120.
  • Air introduced along the leading edges 121 flows along surfaces of the blades 120 and is discharged along the trailing edges 122.
  • flows of the air are varied by the convex portions 125a and the concave portions 125b.
  • the intensity and region of wake currents can be reduced.
  • wake currents can be suppressed, noise can also be reduced for user's satisfaction.
  • the convex portions 125a and the concave portions 125b may extend on the blades 120 toward the leading edges 121 by predetermined lengths.
  • the convex portions 125a and the concave portions 125b may extend concentrically to the center of the axial flow fan 100 by predetermined lengths. In this case, as it goes toward the leading edges 121, the heights of the convex portions 125a and the depths of the concave portions 125b may be reduced.
  • air flowing on the surfaces of the blades 120 may be less disturbed at the trailing edges 122 by the corrugated parts 125.
  • air flowing on the positive-pressure surfaces of the blades 120 may be smoothly mixed with air flowing on the negative-pressure surfaces of the blades 120 at the corrugated parts 125, and thus wake currents may be suppressed.
  • Fig. 7 is a plan view illustrating an air conditioner 1 according to a second embodiment
  • Fig. 8 is a front view illustrating a shroud 60 according to the second embodiment.
  • the air conditioner 1 of the second embodiment includes a case 10, a heat exchanger 20, a fan 100, a motor 30, a filter (not shown), a compressor 40, and a shroud 60.
  • the air conditioner 1 of the second embodiment has the same structure as that of the air conditioner 1 of the first embodiment except for the shroud 60. Thus, a detailed description of the same structure will not be repeated.
  • the fan 100 of the second embodiment may be an axial flow fan that has the same structure as the axial flow fan 100 of the first embodiment or does not include corrugated parts.
  • the shroud 60 is disposed at the front side of the axial flow fan 100 to guide air discharged from the axial flow fan 100.
  • the shroud 60 may have a hollow cylinder shape with a size corresponding to the size of the axial flow fan 100.
  • the shroud 60 may have a hollow truncated cone shape the diameter of which reduces as it goes away from the axial flow fan 100.
  • a shroud corrugated part 61 may be formed on a discharge end of the shroud 60.
  • the shroud corrugated part 61 may include shroud convex portions 61a and shroud concave portions 61b that are alternately arranged.
  • the shroud convex portions 61a may protrude toward the inside of the shroud 60, and the shroud concave portions 61b may protrude outward from the shroud 60.
  • the shroud 60 may be additionally used, and the shroud corrugated part 61 of the shroud 60 may have a shape similar to that of the corrugated parts 125 of the blades 120 of the first embodiment.
  • flows of air may be concentrated to increase the flow rate of the air, and wake currents may be reduced after air passes through the axial flow fan 100.
  • the corrugated part 61 may have an S-shaped cross section. That is, the shroud convex portions 61a and the shroud concave portions 61b may be connected in a curved shape. Owing to this structure, flows of air may be less disturbed as described in the description of the corrugated parts 125 of the first embodiment.
  • the shroud convex portions 61a and the shroud concave portions 61b extend toward an entrance end of the shroud 60 by a predetermined length. At this time, the heights of the shroud convex portions 61a and the depths of the shroud concave portions 61b may be reduced as it goes toward the entrance end of the shroud 60.
  • the shroud corrugated part 61 may be continuous in the circumferential direction of the discharge end of the shroud 60.
  • the shroud convex portions 61a and the shroud concave portions 61b are arranged around the center of the shroud 60 and each has an angular width of 5 degrees
  • the number of the shroud convex portions 61a formed on the discharge end of the shroud 60 may be thirty six
  • the number of the shroud concave portions 61b formed on the discharge end of the shroud 60 may also be thirty six.
  • the shroud convex portions 61a and the shroud concave portions 61b are alternately arranged on the discharge end of the shroud 60.
  • noise can be reduced by suppressing wake currents by using corrugated parts 125 of the axial flow fan 100.
  • wake currents can also be suppressed by using the shroud corrugated part 61 of the shroud 60 to increase the flow rate of air at the same or lower level of power consumption.
  • the axial flow fan may consume less power, and noise can be reduced while air is sucked and discharged by the axial flow fan. Therefore, users may use the axial flow fan with more satisfactory.
  • the shroud is provided on the front side of the axial flow fan to prevent wake currents more effectively when air is discharged from the axial flow fan by using the shroud corrugated part of the shroud.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP20120184410 2011-10-12 2012-09-14 Axialstromlüfter und Klimaanlage Withdrawn EP2581607A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20110104068A KR20130039481A (ko) 2011-10-12 2011-10-12 축류팬 및 공기 조화기

Publications (1)

Publication Number Publication Date
EP2581607A1 true EP2581607A1 (de) 2013-04-17

Family

ID=47002638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120184410 Withdrawn EP2581607A1 (de) 2011-10-12 2012-09-14 Axialstromlüfter und Klimaanlage

Country Status (4)

Country Link
US (1) US20130091888A1 (de)
EP (1) EP2581607A1 (de)
KR (1) KR20130039481A (de)
CN (1) CN103047180A (de)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
EP2806221A3 (de) * 2013-05-20 2014-12-17 Samsung Electronics Co., Ltd Propellergebläse und Klimaanlage damit
WO2017042877A1 (ja) * 2015-09-08 2017-03-16 三菱電機株式会社 プロペラファン、プロペラファン装置および空気調和装置用室外機
JP2020536193A (ja) * 2017-09-29 2020-12-10 キャリア コーポレイションＣａｒｒｉｅｒ Ｃｏｒｐｏｒａｔｉｏｎ 波状翼及び後縁セレーションを有する軸流ファンブレード
US11041506B2 (en) 2015-11-30 2021-06-22 Samsung Electronics Co., Ltd. Blower fan and air conditioner having same

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WO2016071948A1 (ja) * 2014-11-04 2016-05-12 三菱電機株式会社 プロペラファン、プロペラファン装置および空気調和装置用室外機
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DE102015216579A1 (de) * 2015-08-31 2017-03-02 Ziehl-Abegg Se Lüfterrad, Lüfter und System mit mindestens einem Lüfter
USD901669S1 (en) 2017-09-29 2020-11-10 Carrier Corporation Contoured fan blade
CN207795681U (zh) * 2018-01-13 2018-08-31 广东美的环境电器制造有限公司 轴流扇叶、轴流风机扇叶组件、轴流风机风道组件
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GB791563A (en) * 1955-05-02 1958-03-05 Joseph Vaghi Improvements relating to structures for use as an airplane wing, a propeller blade, a blower or fan blade
EP1443215A2 (de) * 2003-01-29 2004-08-04 Siemens VDO Automotive Inc. Integrierte Abdichtung in einer Lüfterhaubenstruktur
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2806221A3 (de) * 2013-05-20 2014-12-17 Samsung Electronics Co., Ltd Propellergebläse und Klimaanlage damit
WO2017042877A1 (ja) * 2015-09-08 2017-03-16 三菱電機株式会社 プロペラファン、プロペラファン装置および空気調和装置用室外機
JPWO2017042877A1 (ja) * 2015-09-08 2018-03-01 三菱電機株式会社 プロペラファン、プロペラファン装置および空気調和装置用室外機
US11041506B2 (en) 2015-11-30 2021-06-22 Samsung Electronics Co., Ltd. Blower fan and air conditioner having same
JP2020536193A (ja) * 2017-09-29 2020-12-10 キャリア コーポレイションＣａｒｒｉｅｒ Ｃｏｒｐｏｒａｔｉｏｎ 波状翼及び後縁セレーションを有する軸流ファンブレード

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