EP3530961B1 - Strömungsführende ringstruktur, axiallüfter und klimaanlage - Google Patents

Strömungsführende ringstruktur, axiallüfter und klimaanlage Download PDF

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Publication number
EP3530961B1
EP3530961B1 EP17862279.1A EP17862279A EP3530961B1 EP 3530961 B1 EP3530961 B1 EP 3530961B1 EP 17862279 A EP17862279 A EP 17862279A EP 3530961 B1 EP3530961 B1 EP 3530961B1
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EP
European Patent Office
Prior art keywords
curved plate
flow guiding
opening
ring body
guiding ring
Prior art date
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Active
Application number
EP17862279.1A
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English (en)
French (fr)
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EP3530961A1 (de
EP3530961A4 (de
Inventor
Fangyong ZHU
Jun Xiong
Xu Gao
Junjie LIAO
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.)
Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Publication of EP3530961A4 publication Critical patent/EP3530961A4/de
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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
    • F04D29/66—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
    • F04D29/663—Sound attenuation
    • F04D29/665—Sound attenuation by means of resonance chambers or interference
    • 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
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid 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
    • F04D29/66—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

Definitions

  • the present invention relates to the field of noise reduction, and in particular to a flow guiding ring structure, an axial flow fan and an air conditioner.
  • a pneumatic noise of an axial flow fan used in an air conditioner external unit is a noise source second only to a compressor vibration noise. Therefore, fan noise reduction is one of the key research topics in the optimization of a fan, as also disclosed in JPH04265500A .
  • the pneumatic noise of the axial flow fan is mainly from the vicinity of a blade, especially a blade top area. Because the area has the strongest power capability, a wind speed is maximum and a blade top leakage vortex mainly occurs in this area, an airflow vortex is serious, which is the largest source of the pneumatic noise.
  • a fan noise is reduced in the following manner: adding a plurality of concave circumferential groove structures at a minimum diameter position of a flow guiding ring of an axial flow fan to increase a gap between the flow guiding ring and a blade top of a fan blade to reduce the noise.
  • the inventors have found that at least the following problems exist in the conventional art: the above method has great limitations, and slotting increases the distance between the blade top of the air blade and the flow guiding ring, thereby increasing the leakage space and reducing the air outflow amount and fan efficiency of the fan.
  • Some embodiments of the present invention is to provide a flow guiding ring structure, an axial flow fan and an air conditioner, used for reducing the pneumatic noise of the axial flow fan during use on the premise of guaranteeing the air outflow amount of the fan.
  • the present invention provides the technical solutions as follows.
  • An embodiment of the present invention provide a flow guiding ring structure, which includes a ring body.
  • the ring body includes a closed cavity and a through hole.
  • a minimum diameter position of the ring body is provided with an opening.
  • the cavity communicates with the through hole via the opening, wherein a fluid in the through hole is able to enter the cavity through the opening.
  • the ring body has at least one curved plate for defining the cavity.
  • the ring body may include a first curved plate, a second curved plate and a flat plate defining the cavity and the through hole.
  • the first curved plate is located inside the ring body
  • the second curved plate is located outside the ring body
  • the first curved plate and the second curved plate are rounded off and sealed.
  • An end of the first curved plate away from the second curved plate and the flat plate is rounded off and sealed.
  • An end of the second curved plate away from the first curved plate and the flat plate is rounded off and sealed, wherein the opening is provided in the first curved plate.
  • the first curved plate may include a first segment and a second segment having different curvatures.
  • the first segment is located between the flat plate and the second segment.
  • the opening is provided in the first segment.
  • a curvature of the first segment may be greater than a curvature of the second segment.
  • a junction of the second curved plate and the flat plate may be configured such that airflow is able to be guided to the through hole of the ring body.
  • the opening may have a diameter of 1 mm to 3mm.
  • a distance between two adjacent openings may be 2.5 to 4 times a diameter of each of the openings.
  • the outline of the opening may be circular or elliptical.
  • an axis of the opening may be perpendicular to a surface of the ring body at a location of the opening.
  • the opening may be located on an air outflow side of the ring body.
  • Another embodiment of the present invention provides an axial flow fan, which may include the flow guiding ring structure provided by any one technical solution of the present invention.
  • Yet another embodiment of the present invention provides an air conditioner, which may include the axial flow fan provided by any one technical solution of the present invention.
  • the embodiments of the present invention may at least have the following technical effects.
  • the flow guiding ring structure adopted by the above technical solutions adopts a ring body with a closed cavity, and an airflow flowing through a through hole of the flow guiding ring structure is able to enter the closed cavity through an opening, a static pressure returned by each opening is able to be automatically balanced and comprehensively processed inside a annular cavity, and a comprehensive value is finally achieved, that is, the imbalance of the circumferential static pressure of a flow guiding ring may be adjusted, the circumferential turbulence of the airflow in the flow guiding ring is reduced, and the effect of noise reduction is achieved. Since the cavity is closed, gas flowing into the cavity through the opening does not leak, so the air volume of the axial flow fan cannot be reduced.
  • the above technical solutions can reduce the noise of the axial flow fan without reducing the air volume of the axial flow fan, can solve the problem that the air volume of the axial flow fan has to be reduced if the noise is reduced, and can reduce the noise on the premise of guaranteeing the air volume of the axial flow fan. That is, according to the above technical solutions, on the premise of guaranteeing the Venturi tube effect of the flow guiding ring structure, an opening structure is added on a surface, and turbulent energy of a blade top airflow is transmitted out of a fan area in a radial direction, so that the aim of noise reduction is achieved.
  • the embodiments of the present invention provide a flow guiding ring structure, which includes a ring body 1.
  • the ring body 1 includes a through hole 12 and a closed cavity 11.
  • a minimum diameter position of the ring body 1 is provided with an opening 13.
  • the cavity 11 communicates with the through hole 12 via the opening 13.
  • a fluid in the through hole 12 is able to enter the cavity 11 through the opening 13.
  • the ring body 1 is provided with a closed cavity 11.
  • a minimum diameter position that is, an inner wall position of the through hole 12 for passage of an airflow of an axial flow fan in the middle of the ring body 1 is provided with an opening 13.
  • the opening 13 communicates with the closed cavity 11.
  • the opening 13 is a micro-hole, relatively small in size.
  • An airflow flowing through the flow guiding ring structure spatially communicates with the closed cavity 11 in a flow guiding ring through the openings 13.
  • the airflow flowing through the through hole 12 may partially enter the closed cavity 11 along each of the openings 13.
  • This flow allows each of the openings 13 to transmit a static pressure at this position into an annular closed cavity 11.
  • the static pressure returned by each of the openings 13 is able to be automatically balanced and comprehensively processed inside the annular cavity, and a comprehensive value is finally achieved, that is, the imbalance of the circumferential static pressure of a flow guiding ring may be adjusted, the circumferential turbulence of the airflow in the flow guiding ring is reduced, and the effect of noise reduction is achieved, as shown in Fig. 4 .
  • each of the openings 13 communicates with the closed cavity 11 to further add a micro-opening structure on a surface of the closed cavity 11, radial turbulent energy of an outer ring is able to be transmitted into the closed cavity, and resonance silencing with the cavity 11 occurs in the cavity, that is, the Helmholtz silencing mechanism is used to reduce the pneumatic noise of the airflow of the outer ring.
  • An outline of the opening 13 is circular, elliptical or shaped like other rounded arcs. This allows gas to smoothly enter the cavity 11.
  • the ring body 1 has at least one curved plate for defining the cavity 11.
  • the curved plate has a good flow guiding effect.
  • the ring body 1 includes a first curved plate 2, a second curved plate 3 and a flat plate 4, defining the cavity 11 and the through hole 12.
  • the first curved plate 2 forms an inner wall surface of the cavity 11, and the second curved plate 3 forms an outer wall surface of the cavity 11.
  • the left portion of an elliptical dotted line of an air-conditioning panel is referred to as an in-extension segment, where the segment and the flat plate 4 are rounded off.
  • the positions of an air outflow side 6 and an axial-flow fan blade side 5 of an air conditioner are as shown in Fig. 2 .
  • the part A illustrates a rounding-off position.
  • the closed space defined by the first curved plate 2, the second curved plate 3 and the flat plate 4 is the above cavity 11, and an opening defined thereby is a through hole 12.
  • the first curved plate 2 is located inside the ring body 1
  • the second curved plate 3 is located outside the ring body 1
  • the first curved plate 2 and the second curved plate 3 are rounded off and sealed.
  • An end of the first curved plate 2 away from the second curved plate 3 and the flat plate 4 are rounded off and sealed.
  • An end of the second curved plate 3 away from the first curved plate 2 and the flat plate 4 are rounded off and sealed, wherein the openings 13 are provided in the first curved plate 2.
  • the ring body 1 of this structure is easy to process and install.
  • the inside and the outside referred to in the present embodiment are opposite, the inside is close to the center of the ring body 1, and the outside is away from the center of the ring body 1.
  • the first curved plate 2 and the second curved plate 3 are rounded off and sealed.
  • An end of the first curved plate 2 away from the second curved plate 3 and the flat plate 4 are rounded off and sealed.
  • An end of the second curved plate 3 away from the first curved plate 2 and the flat plate 4 are rounded off and sealed.
  • the in-extension segment of the flow guiding ring is rounded off and closed, which can guide the airflow outside the flow guiding ring to smoothly enter an outlet of the flow guiding ring, reduce the vortex in the area and reduce the wind resistance.
  • the flow direction of the fluid is shown in Fig. 3 .
  • the first curved plate 2 includes a first segment 21 and a second segment 22 having different curvatures, the first segment 21 being located between the flat plate 4 and the second segment 22, and the openings 13 being provided in the first segment 21.
  • This arrangement allows the openings 13 to be located entirely on the air outflow side, which is effective in reducing noise.
  • a curvature of the first segment 21 is greater than a curvature of the second segment 22.
  • the intersection of the first segment 21 and the second segment 22 is an inflection point, and the openings 13 are all located in the first segment 21, so that the openings 13 are all located on the air outflow side, which can effectively reduce the noise of the axial flow fan.
  • a junction of the second curved plate 3 and the flat plate 4 is configured such that airflow is able to be guided to an inlet of the ring body 1. That is, a junction is rounded off, and the orientation of arcs meets the requirements for guiding the airflow.
  • a junction of the second curved plate 3 and the flat plate 4 is curved, and the arc is oriented toward the outside of the flow guiding ring structure, so that the airflow is able to be guided to the through hole 12 of the flow guiding ring structure.
  • the flow guiding direction is shown by a curved arrow in Fig. 3 .
  • openings 13 there are at least two openings 13, the openings 13 being arranged along a circumference of the ring body 1.
  • each of the openings 13 has a diameter of 1mm to 3mm. Since the flow velocity of the airflow near a wall surface area of the flow guiding ring is large, a diameter of each of the openings 13 is required. If the aperture is too large, the whistling sound is easily caused by the airflow scouring, which aggravates the pneumatic noise. If the aperture is too small, the processing difficulty is large, and the ability of transferring energy into the annular cavity is also reduced, thereby reducing the ability to diffuse and silence.
  • a distance between two adjacent openings 13 is 2.5 to 4 times a diameter of the opening 13.
  • the flow guiding ring structure provided by the embodiments of the present invention is applied to a novel flow guiding ring on a household air conditioner external unit, which can increase the air volume of the external unit, improve the heat exchange speed, smooth out the wind direction and reduce the pneumatic noise of the whole machine.
  • the flow guiding ring structure includes a ring body 1.
  • the ring body 1 includes a cavity 11, a through hole 12 and openings 13 for communicating the cavity 11 with the through hole 12.
  • the cavity 11 of the annular cavity is an annular closed cavity surrounding a ventilation side formed by riveting and closed adhesion after a cantilever segment is extended, expanded outward and bent back to a front panel of an air conditioner namely a flat plate 4 on the basis of the existing in-extension flow guiding ring.
  • the riveting part of the bending segment and the panel is rounded off as much as possible, so that the airflow in the area is able to be effectively guided into an effective circulation area of the flow guiding ring through the bending surface.
  • the ring body 1 has an air outflow side and an air inflow side, wherein the air inflow side refers to a side to which air directly blows. Only micro openings 13 are provided on the air outflow side, and the openings 13 are not provided on the air inflow side, because each of the micro openings 13 is perpendicular to the surface of the flow guiding ring structure during processing. If the openings 13 are processed on a wall body of the air inflow side, each of the openings 13 and the flow direction of the airflow form an acute angle, the airflow is easy to directly impact the micro hole to cause a sharp abnormal noise (such as whistling), so processing of the through hole 12 on the inlet side does not achieve noise reduction. Of course, the above problem can also be improved by changing the direction of the openings 13.
  • Each of the micro opening 13 is a single row or multiple rows of circular holes connecting a closed space in a fluid flowing space domain at a minimum diameter position in the flow guiding ring.
  • the turbulent energy of the airflow portion enters the annular cavity 11 through the openings 13, and two kinds of noise elimination effects are generated inside: one is that by the large space dissipation of vortex energy, the energy level is reduced and absorbed by the wall surface, and the other one is that through the circular effect, the circumferential turbulent energy of the airflow cancels each other uniformly, so as to achieve uniform kinetic energy in the circumferential direction and reduce the circumferential flowing energy of the external airflow, thereby maximizing the uniform forward air outflow of the flow guiding ring and reducing the pneumatic noise.
  • the results show that the flow guiding ring has a large effect on the external unit performance, the air volume is increased by 137m3/h, and the broadband noise is reduced by 0.8dB(A).
  • the through-hole structure is adopted on the air outflow side of the flow guiding ring based on the Helmholtz principle, and the radial and circumferential turbulent energy of the wall airflow is introduced into the closed wall body for diffusion, thereby reducing the turbulent energy and achieving the sound absorbing effect.
  • the embodiments of the present invention also provide an axial flow fan, including the flow guiding ring structure provided by any one technical solution of the present invention.
  • the embodiments of the present invention further provide an air conditioner, including the axial flow fan provided by any one technical solution of the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Flow Control Members (AREA)

Claims (10)

  1. Strömungsführende Ringstruktur, umfassend einen Ringkörper (1), wobei der Ringkörper (1) einen geschlossenen Hohlraum (11) und ein Durchgangsloch (12) umfasst, wobei eine Position mit minimalem Durchmesser des Ringkörpers (1) mit einer Öffnung (13) versehen ist, wobei der Hohlraum (11) über die Öffnung (13) mit dem Durchgangsloch (12) in Verbindung steht, wobei ein Fluid in dem Durchgangsloch (12) durch die Öffnung (13) in den Hohlraum (11) eintreten kann, wobei der Ringkörper (1) mindestens eine gekrümmte Platte zum Begrenzen des Hohlraums (11) aufweist, wobei der Ringkörper (1) eine erste gekrümmte Platte (2), eine zweite gekrümmte Platte (3) und eine flache Platte (4) umfasst, die den Hohlraum (11) und das Durchgangsloch (12) begrenzen; wobei die erste gekrümmte Platte (2) innerhalb des Ringkörpers (1) angeordnet ist, die zweite gekrümmte Platte (3) außerhalb des Ringkörpers (1) angeordnet ist, und die erste gekrümmte Platte (2) und die zweite gekrümmte Platte (3) abgerundet und abgedichtet sind; wobei ein von der zweiten gekrümmten Platte (3) entferntes Ende der ersten gekrümmten Platte (2) und die flache Platte (4) abgerundet und abgedichtet sind; und ein von der ersten gekrümmten Platte (2) entferntes Ende der zweiten gekrümmten Platte (3) und die flache Platte (4) abgerundet und abgedichtet sind, wobei die Öffnung (13) in der ersten gekrümmten Platte (2) vorgesehen ist, wobei die erste gekrümmte Platte (2) ein erstes Segment (21) und ein zweites Segment (22) mit unterschiedlichen Krümmungen umfasst, wobei das erste Segment (21) zwischen der flachen Platte (4) und dem zweiten Segment (22) angeordnet ist und die Öffnung (13) in dem ersten Segment (21) vorgesehen ist, wobei die Öffnung (13) auf einer Luftausströmungsseite des Ringkörpers (1) angeordnet ist, wobei ein Bogen der zweiten gekrümmten Platte (3) zu einer Außenseite der strömungsführenden Ringstruktur ausgerichtet ist.
  2. Strömungsführende Ringstruktur nach Anspruch 1, wobei eine Krümmung des ersten Segments (21) größer ist als eine Krümmung des zweiten Segments (22).
  3. Strömungsführende Ringstruktur nach Anspruch 1, wobei eine Verbindung zwischen der zweiten gekrümmten Platte (3) und der flachen Platte (4) derart konfiguriert ist, dass der Luftstrom zu dem Durchgangsloch (12) des Ringkörpers (1) geleitet werden kann.
  4. Strömungsführende Ringstruktur nach einem der Ansprüche 1 bis 3, wobei mindestens zwei Öffnungen (13) vorhanden sind, wobei die Öffnungen (13) entlang eines Umfangs des Ringkörpers (1) angeordnet sind.
  5. Strömungsführende Ringstruktur nach einem der Ansprüche 1 bis 3, wobei die Öffnung (13) einen Durchmesser von 1 mm bis 3 mm hat.
  6. Strömungsführende Ringstruktur nach einem der Ansprüche 1 bis 3, wobei mindestens zwei Öffnungen (13) vorhanden sind und ein Abstand zwischen zwei benachbarten Öffnungen (13) das 2,5- bis 4-fache des Durchmessers jeder der Öffnungen (13) beträgt.
  7. Strömungsführende Ringstruktur nach einem der Ansprüche 1 bis 3, wobei der Umriss der Öffnung (13) kreisförmig oder elliptisch ist.
  8. Strömungsführende Ringstruktur nach einem der Ansprüche 1 bis 3, wobei eine Achse der Öffnung (13) senkrecht zu einer Oberfläche des Ringkörpers (1) an einer Stelle der Öffnung (13) verläuft.
  9. Axiallüfter, umfassend die strömungsführende Ringstruktur nach einem der Ansprüche 1 bis 8.
  10. Klimaanlage, umfassend den Axiallüfter nach Anspruch 9.
EP17862279.1A 2016-10-20 2017-10-16 Strömungsführende ringstruktur, axiallüfter und klimaanlage Active EP3530961B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610917189.XA CN106321520B (zh) 2016-10-20 2016-10-20 导流圈结构、轴流风机及空调器
PCT/CN2017/106279 WO2018072664A1 (zh) 2016-10-20 2017-10-16 导流圈结构、轴流风机及空调器

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EP3530961A1 EP3530961A1 (de) 2019-08-28
EP3530961A4 EP3530961A4 (de) 2020-06-10
EP3530961B1 true EP3530961B1 (de) 2024-01-03

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EP (1) EP3530961B1 (de)
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WO (1) WO2018072664A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106321520B (zh) * 2016-10-20 2018-11-23 珠海格力电器股份有限公司 导流圈结构、轴流风机及空调器
CN108488103A (zh) * 2018-06-26 2018-09-04 杭州老板电器股份有限公司 降噪装置、风机及油烟机
CN108869361B (zh) * 2018-07-26 2023-12-26 珠海格力电器股份有限公司 轴流风机
CN110873074B (zh) * 2018-08-31 2023-07-18 日立江森自控空调有限公司 一种导风圈和风机
CN109210013B (zh) * 2018-11-30 2020-11-27 泛仕达机电股份有限公司 一种降噪型风机导风圈及包括该导风圈的风机
CN109667795B (zh) * 2019-02-28 2024-03-19 青岛海信日立空调系统有限公司 一种风机集流器、离心风机及空调系统
US10947991B2 (en) * 2019-03-15 2021-03-16 Deere & Company Fan shroud
CN109882452B (zh) * 2019-04-15 2020-11-06 上海交通大学 一种基于声学截止的散热风扇降噪装置及其方法
CN110420560A (zh) * 2019-08-14 2019-11-08 江苏科技大学 一种船用scr系统反应器导流装置
CN111288562A (zh) * 2020-03-30 2020-06-16 宁波奥克斯电气股份有限公司 一种导流圈及空调器
DE102020113962A1 (de) 2020-05-25 2021-11-25 Ebm-Papst Mulfingen Gmbh & Co. Kg Einlassdüse für eine Strömungsmaschine und Strömungsmaschine
CN113729535B (zh) * 2020-05-27 2023-09-08 厦门优胜卫厨科技有限公司 一种电子便器的烘干装置
CN112833049B (zh) * 2021-01-11 2022-11-18 泛仕达机电股份有限公司 一种消除啸叫声的集流器及离心风机

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2028985A (en) * 1932-05-25 1936-01-28 Clarence A Mahon Fan
GB785501A (en) * 1954-12-22 1957-10-30 Licencia Talalmanyokat Improvements relating to a fan provided with a diffuser
JP2911236B2 (ja) * 1991-02-21 1999-06-23 松下電器産業株式会社 送風機
JP3084790B2 (ja) * 1991-06-18 2000-09-04 ダイキン工業株式会社 プロペラファン
US6623239B2 (en) * 2000-12-13 2003-09-23 Honeywell International Inc. Turbocharger noise deflector
JP2002371998A (ja) * 2001-06-19 2002-12-26 Sanyo Electric Co Ltd 送風装置
CN201259294Y (zh) * 2008-07-22 2009-06-17 珠海格力电器股份有限公司 导流圈及具有导流圈的空调器
CN102418715A (zh) * 2011-12-09 2012-04-18 广东美的电器股份有限公司 轴流风轮
CN202547038U (zh) * 2012-04-23 2012-11-21 珠海格力电器股份有限公司 空调机导流圈
CN102767541B (zh) * 2012-07-04 2015-10-28 宁波方太厨具有限公司 一种降噪集流圈以及使用该集流圈的油烟机
TWI525257B (zh) * 2012-07-11 2016-03-11 Jaguar Prec Industry Co Ltd Ceiling fan
CN202789746U (zh) * 2012-07-16 2013-03-13 广东美的暖通设备有限公司 导流圈及具有该导流圈的空调器
CN203023138U (zh) * 2012-11-09 2013-06-26 珠海格力电器股份有限公司 导流圈、风机系统壳体及上出风空调机组
CN204880627U (zh) * 2015-06-25 2015-12-16 珠海格力电器股份有限公司 导流圈组件、轴流风机及空调器
CN204880603U (zh) * 2015-07-31 2015-12-16 广东美的制冷设备有限公司 导风圈及空调室内机
CN106016651A (zh) * 2016-06-23 2016-10-12 珠海格力电器股份有限公司 导流圈、送风组件以及空调器
CN106321520B (zh) * 2016-10-20 2018-11-23 珠海格力电器股份有限公司 导流圈结构、轴流风机及空调器

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EP3530961A1 (de) 2019-08-28
WO2018072664A1 (zh) 2018-04-26
CN106321520A (zh) 2017-01-11
EP3530961A4 (de) 2020-06-10
CN106321520B (zh) 2018-11-23

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