WO2019210591A1 - Roue à vent à écoulement axial, unité extérieure de climatiseur, et climatiseur - Google Patents

Roue à vent à écoulement axial, unité extérieure de climatiseur, et climatiseur Download PDF

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Publication number
WO2019210591A1
WO2019210591A1 PCT/CN2018/097379 CN2018097379W WO2019210591A1 WO 2019210591 A1 WO2019210591 A1 WO 2019210591A1 CN 2018097379 W CN2018097379 W CN 2018097379W WO 2019210591 A1 WO2019210591 A1 WO 2019210591A1
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WO
WIPO (PCT)
Prior art keywords
intersection
hub
wind wheel
axial flow
flow wind
Prior art date
Application number
PCT/CN2018/097379
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English (en)
Chinese (zh)
Inventor
高文栋
薛玮飞
赵紫生
Original Assignee
广东美的制冷设备有限公司
美的集团股份有限公司
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
Priority claimed from CN201810426063.1A external-priority patent/CN108506246B/zh
Priority claimed from CN201820668315.7U external-priority patent/CN208185060U/zh
Application filed by 广东美的制冷设备有限公司, 美的集团股份有限公司 filed Critical 广东美的制冷设备有限公司
Priority to EP18917336.2A priority Critical patent/EP3783229A4/fr
Publication of WO2019210591A1 publication Critical patent/WO2019210591A1/fr

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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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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

Definitions

  • the present application relates to the field of wind turbines, and in particular to an axial flow wind wheel, and an air conditioner outdoor unit and an air conditioner to which the axial flow wind wheel is applied.
  • the basic structure of the conventional air conditioner intermediate wheel is composed of a circular hub having a center of rotation and a plurality of blades radially arranged on the outer peripheral side of the hub.
  • the wind wheel is driven to rotate by the motor, and the air flows in from the leading edge of the blade, and the work is obtained by the blade to obtain a pressure rise and then flows out from the trailing edge of the blade.
  • the existing wind wheel generally has a hub and a blade.
  • the blade has a leading edge, an outer edge and a trailing edge.
  • the trailing edge of the blade is substantially a straight line, and the outer edge of the blade is projected on the same circumference in a plane perpendicular to the axial direction of the hub. on.
  • the present application provides an axial flow wind wheel, which can increase the air supply volume of the axial flow wind wheel, reduce the axial flow wind wheel noise, and increase the heat exchange efficiency of the air conditioner and reduce the motor power.
  • the axial flow wind wheel proposed by the present application comprises a hub and a plurality of blades, wherein the plurality of blades are arranged along a circumferential direction of the hub, each blade has a leading edge and a trailing edge An outer edge, the intersection of the leading edge and the outer edge is a first intersection, the intersection of the trailing edge and the outer edge is a second intersection, and the first intersection of the plurality of blades is at an axis with the hub
  • the projections in the plane perpendicular to each other are on the same circumferential line, and the projections of the second intersection of the plurality of blades in a plane perpendicular to the axial direction of the hub are on the same circumferential line, and the first intersection is in a circle
  • the radius is greater than the radius of the circle at which the second intersection is located.
  • the radius of the circle in which the first intersection point is defined is L1
  • the radius of the circle in which the second intersection point is defined is L2, 0 mm ⁇ L1-L2 ⁇ 7 Mm.
  • an outer edge of each of the blades includes a first segment and a second segment that are connected, and a connection point of the first segment and the second segment is a third intersection, the first The intersection of the segment and the leading edge is the first intersection, the intersection of the second segment with the trailing edge is the second intersection, and the third intersection with the first intersection or the second intersection is The projections in the axially perpendicular plane of the hub are on the same circumferential line.
  • a line connecting the first intersection with the center of the hub is a first connection
  • a line connecting the second intersection with the center of the hub is a second connection
  • the third intersection is a line connecting the center of the hub is a third line
  • an angle defining a projection of the first line and the second line in a plane perpendicular to an axial direction of the hub is defined as ⁇ 1
  • the The angle between the projection of the second line and the third line in a plane perpendicular to the axial direction of the hub is ⁇ 2, ⁇ 2 ⁇ 1/2 ⁇ 1.
  • intersection of the leading edge and the hub is a fourth intersection
  • intersection of the trailing edge and the hub is a fifth intersection
  • connection of the fourth intersection and the fifth intersection is defined.
  • the angle between the line and the plane perpendicular to the axial direction of the hub is ⁇ 3, 20° ⁇ ⁇ 3 ⁇ 30°.
  • the leading edge is disposed in a concave arc shape
  • the trailing edge is disposed in a convex arc shape from the second intersection to the fifth intersection.
  • the vertical distance between the projection of the first intersection in the axial direction of the hub and the projection of the second intersection in the axial direction of the hub is in the range of 130 mm to 160 mm.
  • the blades are three, and the three blades are evenly distributed along the circumference of the hub.
  • the application also provides an outdoor unit for an air conditioner, comprising:
  • a housing having a receiving cavity, the housing having a mounting opening communicating with the receiving cavity;
  • the air guiding ring is installed at the mounting opening
  • An axial flow wind wheel wherein the axial flow wind wheel is the axial flow wind wheel, wherein the axial flow wind wheel is disposed in the casing, and an air flow surface of the axial flow wind wheel is opposite to the installation opening .
  • a blade portion of the axial flow wind wheel extends into the air guiding ring, and a width d of the axial direction of the air guiding ring is defined, and the fan blade extends into the air guiding ring.
  • the length is in the range of 2/5d to 1/2d.
  • the vertical distance between the first intersection and the inner wall of the air guiding ring is in the range of 6 mm to 10 mm.
  • the application also provides an air conditioner comprising:
  • the axial flow wind wheel includes a hub and a plurality of blades, and the plurality of blades are disposed along a circumferential interval of the hub, and each of the blades has a leading edge, a trailing edge and an outer edge.
  • the present application changes the projection of the outer edge in a plane perpendicular to the axial direction of the hub such that the projection of the outer edge in a plane perpendicular to the axial direction of the hub is not on the same circumferential line, so that the axial flow wind wheel does not increase the rotational speed.
  • FIG. 1 is a schematic structural view of an embodiment of an air conditioner outdoor unit of the present application
  • FIG. 2 is a schematic structural view of an embodiment of an axial flow wind wheel of the present application
  • FIG. 3 is a schematic structural view of another embodiment of an axial flow wind wheel of the present application.
  • FIG. 4 is a schematic structural view of another embodiment of the axial flow wind wheel of the present application.
  • fixed may be a fixed connection, or may be a detachable connection, or may be integrated; It may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship of two elements unless explicitly defined otherwise.
  • fix may be a fixed connection, or may be a detachable connection, or may be integrated; It may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship of two elements unless explicitly defined otherwise.
  • specific meanings of the above terms in the present application can be understood on a case-by-case basis.
  • first”, “second”, and the like in this application are used for descriptive purposes only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. Nor is it within the scope of protection required by this application.
  • the present application proposes an axial flow wind wheel 30 for use in an air conditioner.
  • the axial flow wind wheel 30 includes a hub 31 and a plurality of blades 33, wherein a plurality of blades 33 are circumferentially spaced along the hub 31, each fan
  • the leaf 33 has a leading edge 331, a trailing edge 332 and an outer edge 333.
  • the intersection of the leading edge 331 and the outer edge 333 is the first intersection A
  • the intersection of the trailing edge 332 and the outer edge 333 is the second intersection B
  • the first intersection A of the plurality of blades 33 is perpendicular to the axial direction of the hub 31.
  • the projections in the plane are on the same circumferential line, and the projections of the second intersection B of the plurality of blades 33 in the plane perpendicular to the axial direction of the hub 31 are on the same circumferential line, and the radius of the circle of the first intersection A is larger than the first The radius of the circle where the second intersection B is located.
  • the hub 31 of the axial flow wind wheel 30 is mounted on the output shaft of the motor and is driven by a motor.
  • a mounting hole (not shown) is opened in the center of the hub 31, and an output shaft of the motor is mounted in the mounting hole to achieve a fixed connection with the hub 31 of the axial flow wind wheel 30.
  • the plurality of blades 33 may be evenly spaced from the circumferential direction of the hub 31, and the plurality of blades 33 may be non-uniformly spaced from the circumferential direction of the hub 31.
  • the number of the blades 33 is three, and the three blades are evenly distributed along the circumferential direction of the hub 31.
  • the leading edge 331, the trailing edge 332 and the outer edge 333 of the blade 33 cooperate to form a fan-shaped blade 33.
  • the first edge A to the second intersection B are provided with a convex arc shape.
  • the fan-shaped blade 33 is connected to one end of the hub 31 to the outer edge 333, and the fan-shaped area of the fan-shaped blade 33 is gradually increased. That is, from the end of the connecting hub 31 to the end of the outer edge 333, the line between the leading edge 331 and the trailing edge 332 gradually increases.
  • This design is advantageous for increasing the air supply volume of the axial flow wind wheel 30.
  • the outer edge 333 is a convex arc type. That is, from the first intersection point A to the second intersection point B, the line connecting the outer edge 333 and the center of the hub 31 gradually increases.
  • the arrangement is beneficial to ensure that the axial flow wind wheel 30 can increase the air supply volume of the axial flow wind wheel 30, reduce the noise of the axial flow wind wheel 30, and increase the heat exchange efficiency of the air conditioner without increasing the rotational speed. Reduce motor power.
  • the projection of the outer edge of the blade in the existing wind wheel on a plane perpendicular to the axial direction of the hub is on the same circumferential line.
  • the intersection of the leading edge 331 and the outer edge 333 is the first intersection A
  • the intersection of the trailing edge 332 and the outer edge 333 is the second intersection B
  • a plurality of blades The projection of the first intersection A of 33 in a plane perpendicular to the axial direction of the hub 31 is on the same circumferential line
  • the projection of the second intersection B of the plurality of blades 33 in a plane perpendicular to the axial direction of the hub 31 Located on the same circumference line, the radius of the circle where the first intersection point A is larger than the radius of the circle where the second intersection point B is located.
  • the projection of the outer edge 333 in a plane perpendicular to the axial direction of the hub 31 is not on the same circumferential line, thereby causing the axial flow wind wheel 30 Without increasing the rotational speed, it is possible to increase the air supply volume of the axial flow wind wheel 30, reduce the noise of the axial flow wind wheel 30, and increase the heat exchange efficiency of the air conditioner and reduce the motor power.
  • the radius of the circle in which the first intersection point A is defined is L1
  • the radius of the circle in which the second intersection point B is defined is L2.
  • the difference between the radius L1 of the circle in which the first intersection A is located and the radius L2 of the circle in which the second intersection B is located is 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, and 7 mm.
  • L1 - L2 5 mm.
  • the axial flow wind wheel 30 has the best air supply amount without reducing the rotational speed, and the effect of reducing the noise is optimal, and the heat exchange efficiency of the air conditioner and the power of the motor are optimized.
  • the radius L1 of the circle where the first intersection A is located is in the range of 190 mm to 240 mm. That is, the diameter of the largest circle formed by the projection of the blade 33 of the axial flow wind wheel 30 in a plane perpendicular to the axial direction of the hub 31 is in the range of 380 mm to 480 mm.
  • the radius L1 of the circle where the first intersection A is located is 190 mm, 200 mm, 210 mm, 220 mm, 230 mm, 240 mm.
  • each blade 33 includes a first segment 334 and a second segment 335 that are connected, and the first segment 334 and the second segment 335 are connected.
  • the point is the third intersection E
  • the intersection of the first section 334 and the leading edge 331 is the first intersection A
  • the intersection of the second section 335 and the trailing edge 332 is the second intersection B
  • the projection of the two intersection points B in the axially perpendicular plane of the hub 31 is on the same circumferential line.
  • each blade 33 has only a portion of the projection in a plane perpendicular to the axial direction of the hub 31 on the same circumferential line, and the other portions of the outer edge 333 are in a plane perpendicular to the axial direction of the hub 31.
  • the projections inside are not on the same circumference.
  • the projections of the third intersection E and the first intersection A in the plane perpendicular to the axial direction of the hub 31 are located on the same circumferential line. That is, the projection of the first section 334 of the outer edge 333 in the axially perpendicular plane of the hub 31 lies on the same circumferential line. The projection of the second section 335 of the outer edge 333 in the axially perpendicular plane of the hub 31 is not on the same circumferential line.
  • the projections of the third intersection E and the second intersection B in the plane perpendicular to the axial direction of the hub 31 are on the same circumferential line. That is, the projection of the second section 335 of the outer edge 333 in the axially perpendicular plane of the hub 31 lies on the same circumferential line. The projection of the first section 334 of the outer edge 333 in the axially perpendicular plane of the hub 31 is not on the same circumferential line.
  • This arrangement also makes it possible to increase the air supply amount of the axial flow wind wheel 30, reduce the noise of the axial flow wind wheel 30, and increase the heat exchange efficiency of the air conditioner and reduce the motor power without increasing the rotational speed.
  • connection between the first intersection A and the center of the hub 31 is a first connection (not shown), and the connection between the second intersection B and the center of the hub 31 is a second connection ( Not shown), the line connecting the third intersection with the center of the hub 31 is a third line (not shown), defining an angle between the projection of the first line and the second line in a plane perpendicular to the axial direction of the hub 31.
  • angle between the projection in which the second line and the third line are perpendicular to the axial direction of the hub 31 is defined as ⁇ 2, ⁇ 2 ⁇ 1/2 ⁇ 1.
  • the portion of the outer edge 333 that is projected on the same circumferential line in a plane perpendicular to the axial direction of the hub 31 is less than or equal to 1/2 of the outer edge 333.
  • ⁇ 2 1/2 ⁇ 1.
  • the axial flow wind wheel 30 has the best air supply amount, and the noise reduction effect is optimal, and the heat exchange efficiency of the air conditioner and the power of the motor are optimized. .
  • the intersection of the leading edge 331 and the hub 31 is the fourth intersection C
  • the intersection of the trailing edge 332 and the hub 31 is the fifth intersection D, defining the fourth intersection C and the fifth intersection D.
  • the angle between the line and the plane perpendicular to the axial direction of the hub 31 is ⁇ 3, 20° ⁇ ⁇ 3 ⁇ 30°.
  • the angle ⁇ 3 is 20°, 22°, 24°, 25°, 26°, 28°, 30°.
  • the range of the angle ⁇ 3 affects the arrangement of the blade 33 in the axial direction of the hub 31, and the excessive or too small angle ⁇ 3 affects the air supply amount and noise of the axial flow wind wheel 30.
  • the angle ⁇ 3 is in the range of 20° to 30°, and the axial flow wind 30 has the best air supply amount and noise effect.
  • the leading edge 331 is a concave arc type.
  • the leading edge 331 is provided in a concave arc shape, and facilitates the inflow of air from the leading edge 331 of the blade 33 when the axial flow wheel 30 rotates.
  • the trailing edge 332 is a convex arc type setting.
  • the trailing edge 332 is disposed in a convex arc shape.
  • the vertical distance between the projection of the first intersection A in the axial direction of the hub 31 and the projection of the second intersection B in the axial direction of the hub 31 is in the range of 130 mm to 160 mm. It can be understood that in the axial direction of the hub 31, the projection of the first intersection A in the axial direction of the hub 31 is perpendicular to the axial direction of the hub 31 and the projection of the second intersection B in the axial direction of the hub 31 is perpendicular to the hub 31 axis.
  • the distance between the planes of the directions is in the range of 130 mm to 160 mm.
  • the distance is 130 mm, 140 mm, 150 mm, 160 mm.
  • the projection of the outer edge of the blade of the existing wind wheel in the axially perpendicular plane of the hub 31 is on the same circumferential line.
  • the parameters of the existing wind wheel are: the radius of the circle in which the outer edge is projected in the axially perpendicular plane of the hub 31 is 210 mm, and the vertical distance between the projections of the outer edge at the axial direction of the hub 31 is 143 mm. .
  • the parameter of the axial flow wind wheel 30 proposed by the present application is that the radius L1 of the circle where the first intersection point A is 210 mm, the projection of the first intersection point A in the axial direction of the hub 31 and the projection of the second intersection point B in the axial direction of the hub 31
  • the vertical distance between the two is 143 mm, and the difference between the radius L1 of the circle where the first intersection A is located and the radius L2 of the circle where the second intersection B is located is 5 mm.
  • Air volume (m 3 /h) Motor power required for existing wind wheels (W) Existing wind turbine noise (dBA) Motor power required for axial flow wind wheel 30 (W) Axial flow wind 30 noise (dBA) 2000 34.3 46.1 31.6 39.7 2047 35.6 46.5 33.1 46.1 2071 37.3 46.9 35 46.4 2107 38.3 47.2 35.7 46.8 2138 39.7 47.6 36.9 47.2
  • the axial flow wind wheel 30 proposed by the present application has a power reduction of about 2.5 W and a noise reduction of about 0.4 compared with the existing wind turbine. dBA. It can be seen that the axial flow wind wheel 30 proposed by the present application can increase the air supply volume and reduce the noise without increasing the rotational speed, and has the advantages of increasing the heat exchange efficiency of the air conditioner and reducing the motor power. Effect.
  • an air conditioner outdoor unit 100 including:
  • a housing 20 having a receiving cavity 22, the housing 20 having a mounting opening 21 communicating with the receiving cavity 22;
  • the air guiding ring 10, the air guiding ring 10 is installed at the mounting opening 21,
  • the axial flow wind wheel 30 and the axial flow wind wheel 30 are the above-described axial flow wind wheel 30.
  • the axial flow wind wheel 30 is provided in the casing 20, and the air flow surface of the axial flow wind wheel 30 opposes the mounting opening 21.
  • the specific structure of the axial flow wind wheel 30 is referred to the above embodiment. Since the air conditioner outdoor unit 100 adopts all the technical solutions of all the above embodiments, at least all the effects brought by the technical solutions of the above embodiments are not Repeat them one by one.
  • the housing 20 is provided with a bracket 23 for mounting the axial flow wind wheel 30 and a motor 24 disposed on the bracket 23.
  • the hub 31 of the axial flow wind wheel 30 and the motor The output shaft of the 24 is fixedly connected, and the air outlet surface of the axial flow wind wheel 30 is opposed to the mounting opening 21. That is, the air blowing surface of the axial flow wind wheel 30 is opposed to the air guiding air passage of the air guiding ring 10.
  • a portion of the axial flow wind wheel 30 is received within the air guide air duct.
  • the housing 20 is usually made of a metal material. Therefore, it is preferable that the air guiding ring 10 and the housing 20 are integrally formed by a press forming method.
  • the press forming method is a common method in metal forming, and the molded part has a small wall thickness and a light weight. Helps reduce the mass of the housing 20 and the air guiding ring 10.
  • the blade 33 of the axial flow wind wheel 30 partially extends into the air guiding ring 10. At this time, the blade 33 extends into the air guiding ring from the leading edge 331 to the trailing edge 332.
  • the width of the air guiding ring 10 in the axial direction is defined as d, that is, the height of the air guiding ring 10 in the axial direction of the air guiding ring 10.
  • the length of the fan blade 33 extending into the air guiding ring 10 is in the range of 2/5d to 1/2d.
  • the design is such that during the rotation of the axial flow wind wheel 30, it is advantageous to reduce the noise of the axial flow wind wheel 30. It can be understood that the length of the fan blade 33 of the axial flow wind wheel 30 extending into the air guiding ring 10 can also be equal to the width d of the axial direction of the air guiding ring 10.
  • the vertical distance between the first intersection A and the inner wall of the air guiding ring 10 is in the range of 6 mm to 10 mm. That is, the maximum circle formed by the projection of the blade 33 of the axial flow wind wheel 30 in a plane perpendicular to the axial direction of the hub 31 is perpendicular to the inner wall of the air guide ring 10 in the range of 6 mm to 10 mm.
  • the vertical distance is 6 mm, 7 mm, 8 mm, 9 mm, 10 mm.
  • the vertical distance is in the range of 6 mm to 10 mm, and during the rotation of the axial flow wind wheel 30, it is advantageous to reduce the noise of the axial flow wind wheel 30 and ensure the air supply volume of the axial flow wind wheel 30.
  • the air guiding ring 10 and the housing 20 can be an integrally formed structure, which is advantageous for reducing the production and manufacturing difficulty and improving the production efficiency.
  • the air guiding ring 10 and the housing 20 can also be detachably connected. When one of the housing 20 and the air guiding ring 10 is damaged, the component can be removed for repair or replacement, and the maintenance or replacement by the housing 20 and The air guide ring 10 is composed of the whole.
  • the detachable connection manner may be a connection manner of a screw, a pin, a plug, a buckle, etc., and the embodiment is not limited thereto.
  • the air guiding ring 10 and the housing 20 are integrally formed by injection molding, and the operation process of the injection molding method is simple, easy to implement, and the molding efficiency is high, which helps to simplify the manufacturing process of the air guiding ring 10 .
  • the manufacturing cost of the air guiding ring 10 is reduced, and the manufacturing efficiency of the air guiding ring 10 is improved.
  • the present application also provides an air conditioner including the above-described axial flow wind wheel 30.
  • the specific structure of the axial flow wind wheel 30 is referred to the above embodiment. Since the air conditioner adopts all the technical solutions of all the above embodiments, at least the effects brought by the technical solutions of the above embodiments are no longer used. A narrative.
  • the present application also proposes an air conditioner including the above-described air conditioner outdoor unit 100.
  • the specific structure of the air conditioner outdoor unit 100 is referred to the above embodiment. Since the air conditioner adopts all the technical solutions of all the above embodiments, at least all the effects brought by the technical solutions of the above embodiments are not used herein. Narration.

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

Abstract

L'invention concerne une roue à vent à écoulement axial (30), laquelle roue comprend un moyeu (31) et une pluralité de pales (33), la pluralité de pales étant disposées par intervalles le long d'une direction périphérique du moyeu, chaque pale ayant un bord d'attaque (331), un bord de fuite (332) et un bord externe (333), un point d'intersection entre le bord d'attaque et le bord externe étant un premier point d'intersection (A), un point d'intersection entre le bord de fuite et le bord externe étant un second point d'intersection (B), les saillies des premiers points d'intersection de la pluralité de pales dans un plan perpendiculaire à une direction axiale du moyeu étant situées sur la même ligne périphérique, et les saillies des seconds points d'intersection de la pluralité de pales dans le plan perpendiculaire à la direction axiale du moyeu étant situées sur la même ligne périphérique, le rayon du cercle où sont situés les premiers points d'intersection étant supérieur au rayon du cercle où sont situés les seconds points d'intersection. La roue à vent à écoulement axial peut améliorer le volume de délivrance d'air, réduire le bruit, accroître l'efficacité d'échange de chaleur d'un climatiseur, et réduire la puissance du moteur. L'invention concerne également une unité extérieure de climatiseur et un climatiseur, lesquels comprennent la roue à vent à écoulement axial.
PCT/CN2018/097379 2018-05-04 2018-07-27 Roue à vent à écoulement axial, unité extérieure de climatiseur, et climatiseur WO2019210591A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18917336.2A EP3783229A4 (fr) 2018-05-04 2018-07-27 Roue à vent à écoulement axial, unité extérieure de climatiseur, et climatiseur

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201820668315.7 2018-05-04
CN201810426063.1A CN108506246B (zh) 2018-05-04 2018-05-04 轴流风轮、空调室外机及空调器
CN201810426063.1 2018-05-04
CN201820668315.7U CN208185060U (zh) 2018-05-04 2018-05-04 轴流风轮、空调室外机及空调器

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WO2019210591A1 true WO2019210591A1 (fr) 2019-11-07

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