Wind wheel assembly, air conditioner outdoor unit and air conditioner

Abstract

The wind wheel assembly comprises a wind wheel body and a wind guide structure, a wind guide channel is formed in the wind guide structure, at least part of the wind wheel body is arranged in the wind guide channel, the wind guide channel is provided with a first wind guide section, the inner wall of the first wind guide section is arranged in an arc shape, and the inner wall of the first wind guide section is provided with a second wind guide section. The first air guide section is arranged in a concave mode back to the rotating center shaft of the wind wheel body, and the inner diameter of the first air guide section is set to be gradually increased in the air outlet direction of the air guide structure. According to the technical scheme, the wind guide structure of the wind wheel assembly is improved, the acting force of blade tip vortexes on the inner wall of the wind guide structure is reduced, and noise generated when the wind wheel assembly rotates is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of fan equipment, and in particular to a wind wheel assembly, an air conditioner outdoor unit and an air conditioner. Background Art

[0002] In the related art, the outdoor unit of the air conditioner usually needs to use a motor to drive the wind wheel to rotate, and configure wind guide structures such as wind guide rings on the periphery of the wind wheel so that the wind wheel can drive the air flow and converge on the heat exchanger for heat dissipation, thereby ensuring the normal operation of the air conditioner.

[0003] However, due to the requirements of safety regulations, a certain gap needs to be maintained between the outer periphery of the wind wheel and the inner wall of the wind guide structure, so that during the high-speed rotation of the wind wheel, a relatively obvious blade tip vortex is easily generated in the gap between the wind wheel and the wind guide structure. After the blade tip vortex is generated, it is easy to be affected by the centrifugal force of the wind wheel and move toward the inner wall of the wind guide structure.

[0004] However, the space for accommodating the wind wheel in the existing air guide structure is mostly designed in a straight cylindrical shape. Under the action of centrifugal force, the blade tip vortex will vertically collide with the inner wall of the air guide structure and generate large aerodynamic noise, resulting in large noise when the air conditioner outdoor unit is in operation, reducing the practicality and reliability of the air conditioner outdoor unit. Summary of the invention

[0005] The main purpose of the present invention is to provide a wind wheel assembly, an air conditioner outdoor unit and an air conditioner, aiming to improve the wind guide structure of the wind wheel assembly, reduce the force of the blade tip vortex on the inner wall of the wind guide structure, and reduce the noise generated when the wind wheel assembly rotates.

[0006] To achieve the above-mentioned objectives, the wind wheel assembly proposed in the present invention includes a wind wheel body and an air guide structure, the air guide structure is provided with an air guide channel, the wind wheel body is at least partially provided in the air guide channel, the air guide channel is provided with a first air guide section, the inner wall of the first air guide section is arranged in an arc shape, and is recessed opposite to the rotation center axis of the wind wheel body, and the inner diameter of the first air guide section is arranged to gradually increase along the air outlet direction of the air guide structure.

[0007] Optionally, the air guide channel is further provided with a second air guide section, and a flow port connecting the first air guide section and the second air guide section is provided in the air guide structure. An air inlet connecting the second air guide section is provided on one side of the air guide structure, and the inner diameter of the flow port is less than or equal to the inner diameter of the air inlet.

[0008] Optionally, the inner wall of the second air guide section is arranged in an arc shape and is arranged to protrude toward the rotation center axis of the wind wheel body, and the inner diameter of the second air guide section is arranged to gradually decrease along the air outlet direction of the air guide structure.

[0009] Optionally, the air guide channel is further provided with a DC air outlet section, and the second air guide section, the first air guide section and the DC air outlet section are sequentially connected and arranged along the air outlet direction of the air guide structure. The inner diameter of the DC air outlet section is greater than or equal to the maximum inner diameter of the first air guide section, and the other side of the air guide structure is provided with an air outlet connected to the DC air outlet section.

[0010] Optionally, part of the wind wheel body is exposed at the air inlet, and the width of the wind wheel body along the wind outlet direction of the wind guide structure is defined as W, and the width of the wind guide channel along the wind outlet direction of the wind guide structure is defined as H, and 0.2W≤H≤0.5W.

[0011] Optionally, the width of the first air guide section along the air outlet direction of the air guide structure is defined as h1, 0.4H≤h1≤0.7H. And / or, the width of the second air guide section along the air outlet direction of the air guide structure is defined as h2, 0.1H≤h2≤0.3H. And / or, the width of the DC air outlet section along the air outlet direction of the air guide structure is defined as h3, h3≤0.2H.

[0012] Optionally, the maximum outer diameter of the wind wheel body is defined as D, the inner diameter of the flow port is defined as d1, and 8mm≤d1-D≤20mm.

[0013] Optionally, the maximum inner diameter of the first air guiding section is defined as d2, 0.4H≤(d2-d1) / 2≤0.7H. And / or the maximum inner diameter of the second air guiding section is defined as d3, 0.1H≤(d3-d1) / 2≤0.3H.

[0014] Optionally, the inner diameter of the air inlet is smaller than the inner diameter of the air outlet.

[0015] The present invention further proposes an air-conditioning outdoor unit, which comprises a body and a wind wheel assembly. The wind wheel assembly is the wind wheel assembly described above, and the wind wheel assembly is arranged in the body.

[0016] The present invention further provides an air conditioner, comprising an air conditioner indoor unit and an air conditioner outdoor unit, wherein the air conditioner outdoor unit is the air conditioner outdoor unit described above, and the air conditioner outdoor unit is connected to the air conditioner indoor unit.

[0017] The technical solution of the present invention sets a first air guide end in the area near the air outlet end in the air guide structure, and utilizes the structural characteristic that the inner diameter of the first air guide section gradually increases along the air outlet direction, so that the flow velocity of the airflow can be reduced when it flows through the first air guide section, which is beneficial to reducing the airflow noise generated by the high-speed airflow. By designing the inner wall of the first air guide section to be an arc-shaped depression similar to the inner wall of a bowl, the inner wall of the first air guide section can have a certain streamline guide effect, so that the tip vortex generated by the high-speed rotation of the wind wheel body can decompose the centrifugal force when it contacts the inner wall of the first air guide section, and then the tip vortex can move along the air outlet direction with the action of the inner wall of the first air guide section, avoiding the tip vortex from acting vertically on the inner wall of the air guide channel, effectively reducing the force of the tip vortex acting on the inner wall of the first air guide section, thereby effectively reducing the noise generated in the wind wheel assembly, allowing the air conditioner outdoor unit to operate more quietly, and further improving the practicality and reliability of the wind wheel assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of an embodiment of a wind wheel assembly of the present invention;

[0020] Figure 2 for Figure 1 A schematic structural diagram of a wind wheel assembly from another perspective;

[0021] Figure 3 for Figure 1 A front view of an embodiment of a wind wheel assembly;

[0022] Figure 4 for Figure 1 A side view of a wind rotor body of a wind rotor assembly;

[0023] Figure 5 for Figure 1 A longitudinal cross-sectional view of the wind guide structure of the wind wheel assembly;

[0024] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0025] Figure 7 for Figure 1 A schematic diagram of the flow direction of the outlet airflow in the air guide structure of the wind wheel assembly;

[0026] Figure 8It is a structural exploded view of an embodiment of an air conditioner outdoor unit of the present invention.

[0027] Description of Figure Numbers:

[0028]

[0029]

[0030] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] Due to the requirements of safety regulations, a certain gap needs to be reserved between the outer periphery of the wind wheel and the inner wall of the wind guide structure, so that during the high-speed rotation of the wind wheel, a relatively obvious blade tip vortex is easily generated in the gap between the wind wheel and the wind guide structure. After the blade tip vortex is generated, it is easy to be affected by the centrifugal force of the wind wheel and move toward the inner wall of the wind guide structure. However, the space for accommodating the wind wheel in the existing wind guide structure is mostly designed in a straight cylindrical shape. Under the action of centrifugal force, the blade tip vortex will vertically hit the inner wall of the wind guide structure and generate a large aerodynamic noise, resulting in a large noise during the operation of the air conditioner outdoor unit, which reduces the practicality and reliability of the air conditioner outdoor unit. In view of the above problems, the present invention proposes a wind wheel assembly 100.

[0036] Reference Figures 1 to 7 In an embodiment of the present invention, the wind wheel assembly 100 includes a wind wheel body 10 and an air guide structure 30. An air guide channel 31 is provided in the wind guide structure 30. The wind wheel body 10 is at least partially provided in the air guide channel 31. The air guide channel 31 is provided with a first air guide section 311. The inner wall of the first air guide section 311 is arranged in an arc shape and is recessed away from the rotation center axis of the wind wheel body 10. The inner diameter of the first air guide section 311 is arranged to gradually increase along the air outlet direction of the wind guide structure 30.

[0037] It can be understood that the air conditioner can use the refrigerant circulation pipe to connect the air conditioner indoor unit and the air conditioner outdoor unit 1000, and use the refrigerant to circulate between the air conditioner indoor unit and the air conditioner outdoor unit 1000 to compress, condense, expand, evaporate and other operations on the refrigerant, so that the air flow can be blown out to act on the room after heat exchange in the air conditioner indoor unit, thereby realizing the temperature control function of the air conditioner. Among them, a heat exchanger 600 can be arranged in the body 200 of the air conditioner outdoor unit 1000. The heat exchanger 600 can play a condensation role when the air conditioner realizes the refrigeration function, so that the compressed refrigerant medium can exchange heat and achieve cooling during the flow in the heat exchanger 600. At this time, a fan 400 and a wind wheel assembly 100 can be arranged at a position corresponding to the heat exchanger 600 in the body 200, and the fan 400 can be used to drive the wind wheel assembly 100 to rotate, so that the wind wheel assembly 100 can better disturb the airflow inside and outside the body 200 during high-speed rotation, so that a large amount of airflow can be drawn from outside the body 200 to act on the heat exchanger 600, so that the airflow takes away the heat transferred to the surface of the heat exchanger 600 by the refrigerant medium, thereby realizing the condensation function of the air conditioner.

[0038] Reference Figure 8The body 200 of the air conditioner outdoor unit 1000 can be formed by assembling a shell 21 and a cover plate 23. At this time, a certain volume of assembly space can be formed in the shell 21, and the heat exchanger 600 can be stably assembled inside the shell 21. At the same time, the fan bracket 211 is used to fix the fan 400 inside the shell 21, and the fan 400 is arranged close to the heat exchanger 600; by opening an air inlet on the cover plate 23, the air guide structure 30 such as an air guide ring or an air guide ring of the wind wheel assembly 100 can be installed at the air inlet by welding or bolting; or it can be At the air inlet of the cover plate 23, part of the structure of the cover plate 23 is die-cast and folded to form an air guide structure 30 such as an air guide circle or an air guide ring, and the wind wheel body 10 of the wind wheel assembly 100 is connected to the rotor end of the fan 400. Then, when the cover plate 23 is installed on the shell 21, the wind wheel body 10 can be inserted into the air guide structure 30, so that the fan 400 can stably drive the wind wheel body 10 to rotate, and under the flow-gathering and wind-guiding effect of the air guide structure 30, the airflow can be better driven into the shell 21 to act on the heat exchanger 600 for heat dissipation, thereby ensuring the normal operation of the air-conditioning outdoor unit 1000. Among them, the cover plate 23 can also be provided with a protective cover 231 on the side facing away from the shell 21, and the protective cover 231 is covered at the air inlet. The protective cover 231 can be used to better isolate impurities such as sand, fallen leaves, and water vapor carried in the air flow, so that the air flow entering the air-conditioning outdoor unit 1000 for heat dissipation is purer, and foreign matter entering the shell 21 and accumulating in the shell 21 to affect the normal operation of the air-conditioning outdoor unit 1000 is reduced, which is also conducive to better reducing the sharp foreign matter carried in the air flow from scratching the inner wall of the air guide structure 30.

[0039] According to the requirements of relevant safety regulations, the outer edge of the blade of the wind rotor body 10 needs to maintain a certain distance from the inner wall of the wind guide structure 30 to avoid interference between the wind rotor body 10 and the wind guide structure 30 when the wind rotor body 10 rotates at high speed, so as to ensure the stable flow of airflow. At this time, when the airflow passes through the wind rotor assembly 100, part of the airflow is likely to enter the gap between the wind rotor body 10 and the inner wall of the wind guide structure 30 as the wind rotor body 10 rotates. Due to the sudden change in space, the airflow velocity changes, which makes it easy for the airflow to form vortices at the blade edge of the wind rotor body 10, which is commonly known as the tip vortex in the wind turbine 400 wind rotor industry. At this time, when the tip vortex is formed, it is also affected by the centrifugal force of the wind rotor body 10 when it rotates, so that the tip vortex moves toward the inner wall of the wind guide structure 30 in a direction perpendicular to the central axis of rotation of the wind rotor, and then acts on the inner wall of the wind guide structure 30.

[0040] In the present application, the air guide structure 30 may be a block with a through hole in the middle, or may be an air guide ring formed by a strip plate structure, so that an air guide channel 31 for accommodating the wind wheel body 10 and for air flow may be formed in the air guide structure 30. An area with a certain channel length is defined in the air guide channel 31 as the first air guide section 311, and the first air guide section 311 may be arranged close to the air outlet 37 of the air guide structure 30 toward the heat exchanger 600. The inner wall of the first air guide section 311 is arranged in an arc shape, and the inner wall of the first air guide section 311 is arranged to be concave with its back facing the rotation center axis of the wind wheel body 10, so that the inner diameter of the first air guide section 311 is gradually increased along the air outlet direction of the air flow in the air guide structure 30. The air outlet direction of the air flow in the air guide structure 30 may be as follows: Figure 7 As shown, at this time, the air inlet 35 of the air guide structure 30 along the air outlet direction can be exposed on the cover plate 23 of the air conditioner outdoor unit 1000, and the air outlet 37 of the air guide structure 30 along the air outlet direction is arranged toward the heat exchanger 600 of the air conditioner outdoor unit 1000, so that the airflow can stably act on the heat exchanger 600 for convective heat exchange. In addition, the air outlet area at the first air guide section 311 can be made larger than the air inlet area at the first air guide section 311, so that when the airflow flows through the first air guide section 311, the flow rate of the airflow can be reduced due to the change in the flow area, and the noise generated by the high-speed airflow in the air guide structure 30 can be reduced to a certain extent. By making the inner wall of the first air guide section 311 concave like the inner wall of a bowl, the inner wall of the first air guide section 311 can have a certain streamlined design. At this time, by setting the edge of the blade with the largest outer diameter on the wind rotor body 10 at the first air guide section 311, the tip vortex formed by the blade edge of the wind rotor body 10 can be moved in a direction perpendicular to the central axis of the wind rotor body 10 and act on the inner wall of the first air guide section 311. Due to the concave arc design of the inner wall of the first air guide section 311, the force of the tip vortex acting on the inner wall of the first air guide section 311 can be decomposed by the inner wall of the first air guide section 311. A component force is formed to drive the tip vortex to move along the tangent of the inner wall at that location toward the air outlet direction, and a component force acts on the inner wall of the first air guide section 311 along the tangent perpendicular to the inner wall at that location, so that when the tip vortex contacts the inner wall of the first air guide section 311, it can have a tendency to move in the air outlet direction, which is beneficial to better reduce the force of the tip vortex acting on the inner wall of the first air guide section 311, reduce the abnormal sound caused by the collision of the tip vortex force on the air guide structure 30, and effectively reduce the noise generated in the wind wheel assembly 100, so that the air conditioner outdoor unit 1000 can achieve quieter operation and provide users with a better experience.

[0041] The technical solution of the present invention sets the first air guide end in the area near the air outlet end in the air guide structure 30, and utilizes the structural characteristic that the inner diameter of the first air guide section 311 gradually increases along the air outlet direction, so that the airflow velocity can be reduced when it flows through the first air guide section 311, which is conducive to reducing the airflow noise generated by the high-speed airflow. By designing the inner wall of the first air guide section 311 to be similar to the inner wall of a bowl in an arc-shaped depression, the inner wall of the first air guide section 311 can have a certain streamline guide effect, so that the tip vortex generated by the high-speed rotation of the wind wheel body 10 can decompose the centrifugal force when it contacts the inner wall of the first air guide section 311, and then the tip vortex can move along the air outlet direction with the action of the inner wall of the first air guide section 311, avoiding the tip vortex from acting vertically on the inner wall of the air guide channel 31, effectively reducing the force of the tip vortex acting on the inner wall of the first air guide section 311, thereby effectively reducing the noise generated in the wind wheel assembly 100, so that the air conditioner outdoor unit 1000 can operate more quietly, and further improving the practicality and reliability of the wind wheel assembly 100.

[0042] Reference Figure 2 , Figure 5 and Figure 6 In one embodiment of the present invention, the air guide channel 31 is further provided with a second air guide section 313, and a flow port 33 connecting the first air guide section 311 and the second air guide section 313 is provided in the air guide structure 30. An air inlet 35 connecting the second air guide section 313 is provided on one side of the air guide structure 30, and the inner diameter of the flow port 33 is less than or equal to the inner diameter of the air inlet 35.

[0043] In this embodiment, the air guide channel 31 can set an area of ​​a certain channel length near the air inlet end as the second air guide section 313, and the second air guide section 313 and the first air guide section 311 can be arranged in sequence along the air outlet direction of the air guide structure 30. At this time, an intersection position of the first air guide section 311 and the second air guide section 313 can be formed in the air guide structure 30. The intersection position can be defined as a flow port 33 connecting the first air guide section 311 and the second air guide section 313, so that the airflow can enter the first air guide section 311 from the second air guide section 313 through the flow port 33 under the drive of the wind wheel body 10. By connecting the air inlet 35 arranged on the side of the air guide structure 30 facing away from the heat exchanger 600 to the second air guide section 313, the second air guide section 313 can be formed as the air inlet end of the air guide structure 30, so that the airflow can pass through the converging and guiding effect of the second air guide section 313 and then enter the first air guide section 311 through the flow port 33, and the flow velocity of the airflow is reduced under the effect of the gradually increasing inner diameter of the first air guide section 311 along the air outlet direction, thereby achieving a certain noise reduction effect of the wind wheel assembly 100. Among them, the inner diameter size of the flow port 33 can be set equal to the inner diameter size of the air inlet 35, so that the airflow can enter the second air guide section 313 more stably and horizontally; or, the inner diameter size of the flow port 33 can be set to be smaller than the inner diameter size of the air inlet 35. In this case, the air inlet area of ​​the air guide structure 30 can be increased, and the inner wall of the second air guide section 313 can play a certain role in guiding and diverting the air, so that a larger volume of airflow can enter the second air guide section 313 per unit time and enter the first air guide section 311 through the flow port 33, which is conducive to better improving the airflow volume introduced by the wind wheel assembly 100 into the body 200 of the air conditioner outdoor unit 1000, and further improving the convective heat exchange efficiency of the heat exchanger 600.

[0044] Reference Figure 2 , Figure 5 and Figure 6 In one embodiment of the present invention, the inner wall of the second air guide section 313 is arranged in an arc shape and is protruded toward the rotation center axis of the wind wheel body 10, and the inner diameter of the second air guide section 313 is arranged to gradually decrease along the air outlet direction of the air guide structure 30.

[0045] In this embodiment, by setting the inner wall of the second air guide section 313 to be arc-shaped and making the inner wall of the second air guide section 313 protrude toward the rotation center axis of the wind wheel body 10, the inner wall of the second air guide section 313 can form a certain arc-shaped air guide structure 30, so that when the airflow enters the second air guide section 313 through the air inlet 35, it can better converge along the inner wall of the second air guide section 313 and enter the flow port 33, thereby further improving the wind gathering and flow guiding effect of the air guide structure 30. By gradually reducing the inner diameter of the second air guide section 313 along the air outlet direction of the air guide structure 30, the inner diameter of the second air guide section 313 near the air inlet 35 can be set larger than the inner diameter of the flow port 33, so that the air guide structure 30 can have a larger air intake volume. At the same time, the second air guide section 313 is used to gather and guide the airflow, so that the wind energy of the airflow from the second air guide section 313 through the flow port 33 into the first air guide section 311 can be greater, ensuring that the wind wheel assembly 100 can better concentrate the airflow and conduct it to the heat exchanger 600 for heat dissipation, thereby further improving the structural stability and reliability of the wind wheel assembly 100.

[0046] Reference Figure 5 and Figure 6 In one embodiment of the present invention, the air guide channel 31 is further provided with a DC air outlet section 315, and the second air guide section 313, the first air guide section 311 and the DC air outlet section 315 are sequentially connected and arranged along the air outlet direction of the air guide structure 30. The inner diameter of the DC air outlet section 315 is greater than or equal to the maximum inner diameter of the first air guide section 311, and the other side of the air guide structure 30 is provided with an air outlet 37 connected to the DC air outlet section 315.

[0047] In this embodiment, the air guide channel 31 can set an area of ​​a certain channel length adjacent to the air outlet end as a DC air outlet section 315, so that the second air guide section 313, the first air guide section 311 and the DC air outlet section 315 can be arranged in sequence along the air outlet direction of the air guide structure 30, and the DC air outlet section 315 can be a straight-cylinder air guide structure 30 whose inner diameter remains consistent along the air outlet direction of the air guide structure 30, and the inner diameter of the DC air outlet section 315 is greater than or equal to the maximum inner diameter of the first air guide section 311. At this time, the air outlet 37 on the side of the heat exchanger 600 of the air-conditioning outdoor unit 1000 of the air-guiding structure 30 can be connected to the DC air outlet section 315, so that the airflow is guided into the second air guide section 313 through the air inlet 35, and after expanding and reducing noise in the first air guide section 311, the DC air outlet section 315 can be used to converge the expanded airflow, so that the airflow can flow vertically toward the heat exchanger 600 in a more concentrated manner and act on the heat exchanger 600 to dissipate heat, which is beneficial to better avoid the airflow from diffusing and dissipating from the air outlet 37 after passing through the first air guide section 311, thereby ensuring the centralized air guiding effect of the air guide structure 30. Among them, when the inner diameter of the DC air outlet section 315 is equal to the maximum inner diameter of the first air guide section 311, the DC air outlet section 315 can be directly connected to the first air guide section 311, which is beneficial for the air flow to flow directly along the inner wall of the DC air outlet section 315 after diffusing through the first air guide section 311, so that the air flow can be discharged more stably and vertically toward the heat exchanger 600, further improving the structural stability and reliability of the air guide structure 30. When the inner diameter of the DC air outlet section 315 is larger than the maximum inner diameter of the first air guide section 311, a guide platform can be provided at the connection point between the DC air outlet section 315 and the first air guide section 311. The guide platform can be an arc-shaped structure, so that when the airflow expands through the first air guide section 311 and enters the DC air outlet section 315, it can flow into the DC air outlet section 315 more smoothly along the guide platform, and the air can be discharged vertically toward the heat exchanger 600 along the inner wall of the DC air outlet section 315, which is conducive to better reducing the wind energy loss of the outlet airflow and further improving the practicality and reliability of the wind wheel assembly 100.

[0048] Reference Figure 3 and Figure 5 In one embodiment of the present invention, the inner diameter of the air inlet 35 is smaller than the inner diameter of the air outlet 37 .

[0049] In this embodiment, by setting the inner diameter of the air inlet 35 on one side of the air guide structure 30 to be smaller than the inner diameter of the air outlet 37, the smaller area of ​​the air inlet 35 can be better utilized to achieve the concentrated air intake of the wind wheel assembly 100, and the flow rate of the outlet air flow can be better reduced by increasing the area of ​​the air outlet 37, thereby making the airflow noise generated by the airflow in the air guide structure 30 smaller, which is beneficial to better reduce the abnormal noise generated during the operation of the air conditioner outdoor unit 1000, and further improve the noise reduction effect of the wind wheel assembly 100.

[0050] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 In one embodiment of the present invention, part of the wind wheel body 10 is exposed at the air inlet 35, the width of the wind wheel body 10 along the air outlet direction of the air guide structure 30 is defined as W, the width of the air guide channel 31 along the air outlet direction of the air guide structure 30 is defined as H, and 0.2W≤H≤0.5W.

[0051] In this embodiment, the rotor body 10 can expose part of its structure on the side of the wind guide structure 30 where the air inlet 35 is provided, and the other part of the structure of the rotor body 10 is accommodated in the wind guide channel 31, which is conducive to using the exposed part of the rotor body 10 to better turbulently bring the outdoor airflow into the wind guide channel 31, thereby ensuring the wind guiding and drainage effect of the rotor assembly 100. Among them, by limiting the width H of the wind guide channel 31 along the wind outlet direction of the wind guide structure 30 to between 0.2W and 0.5W, for example, H=0.2W, 0.25W, 0.3W, 0.35W, 0.4W, 0.45 or W0.5W, etc., it is conducive to better achieving the wind gathering effect of the rotor assembly 100. By setting H to be greater than or equal to 0.2W, within this range, the rotor body 10 can expose more parts on one side of the wind guide structure 30, so that the rotor body 10 can bring more airflow into the wind guide channel 31 for diversion, thereby ensuring the air flow rate of the wind rotor assembly 100. At the same time, by setting H to be less than or equal to 0.5W, within this range, the part of the rotor body 10 set in the wind guide channel 31 will not be too small, which is conducive to ensuring the turbulence and diversion effect of the rotor body 10 on the airflow in the wind guide channel 31, so that the airflow can maintain a large wind energy outlet effect on the heat exchanger 600 and reverse heat dissipation, ensuring the heat dissipation effect in the air conditioner outdoor unit 1000, and further improving the practicality and reliability of the wind rotor assembly 100.

[0052] Reference Figure 6 In one embodiment of the present invention, the width of the first air guide section 311 along the air outlet direction of the air guide structure 30 is defined as h1, 0.4H≤h1≤0.7H. And / or, the width of the second air guide section 313 along the air outlet direction of the air guide structure 30 is defined as h2, 0.1H≤h2≤0.3H. And / or, the width of the DC air outlet section 315 along the air outlet direction of the air guide structure 30 is defined as h3, h3≤0.2H.

[0053] In this embodiment, by setting the width h1 of the first air guide section 311 along the air outlet direction of the air guide structure 30 between 0.4H and 0.7H, for example, h1=0.4H, 0.45H, 0.5H, 0.55H, 0.6H, 0.65H or 0.7H, etc., within this range, the first air guide section 311 can occupy a larger area in the air guide channel 31, which is conducive to better utilizing the inner wall of the first air guide section 311 to reduce the force of the blade tip vortex on the air guide channel 31, and achieve a better noise reduction effect of the wind wheel assembly 100. By making h1 greater than or equal to 0.4H, the first air guide section 311 can have a certain channel width, which is conducive to the first air guide section 311 better covering the area where the blade tip vortex is generated by the wind wheel body 10, which is conducive to better reducing the force of the blade tip vortex on the wind guide channel 31, and further reducing the noise generated in the wind wheel assembly 100. At the same time, by making h1 less than or equal to 0.7H, it is helpful to avoid the channel width of the first air guide section 311 being too large, so that the layout ratio of the first air guide section 311, the second air guide section 313 and the DC air outlet section 315 in the air guide channel 31 is more reasonable, and it is avoided that the length of the first air guide section 311 is too large, which has a certain probability of causing a large wind energy loss after the airflow expands, and ensures that the airflow can achieve better convergence and outlet in the air guide structure 30, further improving the practicality and reliability of the wind wheel assembly 100.

[0054] Secondly, by setting the width h2 of the second air guide section 313 along the air outlet direction of the air guide structure 30 between 0.1H and 0.3H, for example, h2=0.1H, 0.15H, 0.2H, 0.25H or 0.3H, it is beneficial for the air guide structure 30 to have a better air intake and flow guiding effect. By setting h2 to be greater than or equal to 0.1H, within this range, the second air guide section 313 can have a certain channel width to achieve a better air intake and wind gathering effect, so that the wind wheel assembly 100 can achieve a better flow guiding effect. At the same time, by setting h2 to be less than or equal to 0.3H, within this range, the overall channel width of the second air guide section 313 can be avoided from being too large, and the wind energy loss caused by the airflow passing through the second air guide section 313 with a larger channel width can be avoided, ensuring that the airflow entering the second air guide section 313 can pass through the air guide structure 30 more stably to act on the heat exchanger 600 for heat dissipation, further improving the practicality and reliability of the wind wheel assembly 100.

[0055] In addition, by making the width h3 of the DC air outlet section 315 along the air outlet direction of the air guide structure 30 less than or equal to 0.2H, within this range, the DC air outlet section 315 can occupy a smaller area of ​​the air guide channel 31 while ensuring a certain air outlet convergence of the DC air outlet section 315, thereby facilitating a better design layout of the first air guide section 311 and the second air guide section 313, achieving a better noise reduction and inlet and outlet air convergence effect of the air guide structure 30, and allowing the wind wheel assembly 100 to better guide the air to the heat exchanger 600 for heat dissipation, thereby further improving the structural stability and reliability of the wind wheel assembly 100.

[0056] Reference Figures 3 to 5 In one embodiment of the present invention, the maximum outer diameter of the wind wheel body 10 is defined as D, the inner diameter of the flow port 33 is defined as d1, and 8mm≤d1-D≤20mm.

[0057] In this embodiment, the outer edge of the blades of the wind rotor body 10 can be set in an arc shape. In this case, the rotation path of the blades of the wind rotor body 10 can be truncated cone-shaped. In this case, the diameter of the circular path formed by the rotation of the blades of the wind rotor body 10 at the part farthest from the rotation center axis of the wind rotor body 10 can be D; or, the outer edge of the blades of the wind rotor body 10 can be parallel to the rotation center axis of the wind rotor body 10, so that the rotation path of the wind rotor body 10 can be cylindrical. In this case, the diameter of the circular path formed by any rotation of the blades of the wind rotor body 10 can be D. By making the inner diameter d1 of the flow port 33 and the maximum outer diameter D of the wind rotor body 10 satisfy the relationship: 8mm≤d1-D≤20mm, that is, the gap between the flow port 33 and the outer periphery of the wind rotor body 10 is between 8mm and 20mm. Within this range, it is beneficial for the cooperation between the wind rotor body 10 and the wind guide structure 30 to better meet the safety specifications of the wind rotor assembly 100, and effectively avoid mutual interference between the wind rotor body 10 and the wind guide structure 30; at the same time, it can better avoid the gap between the flow port 33 and the outer periphery of the wind rotor body 10 being too large, which is beneficial to better reduce the generation of blade tip vortices, so that the wind rotor assembly 100 can achieve better noise reduction effect, and further improve the practicality and reliability of the wind rotor assembly 100.

[0058] Reference Figure 5 In one embodiment of the present invention, the maximum inner diameter of the first air guide section 311 is defined as d2, 0.4H≤(d2-d1) / 2≤0.7H. And / or, the maximum inner diameter of the second air guide section 313 is defined as d3, 0.1H≤(d3-d1) / 2≤0.3H.

[0059] In this embodiment, since the inner diameter of the first air guide section 311 gradually increases along the air outlet direction of the air guide structure 30, the inner diameter of the intersection of the first air guide section 311 and the DC air outlet section 315 can be made to be the maximum inner diameter d2 of the first air guide section 311. By making the maximum inner diameter d2 of the first air guide section 311 and the inner diameter d1 of the flow port 33 satisfy the relationship: 0.4H≤(d2-d1) / 2≤0.7H, the gap formed between the inner wall at the maximum air outlet area of ​​the first air guide section 311 and the edge of the flow port 33 is in the range of 0.4H to 0.7H. In this range, a larger space can be provided in the first air guide section 311 to accommodate the wind rotor body 10, thereby avoiding interference between the wind rotor body 10 and the inner wall of the first air guide section 311. At the same time, a certain gap can be provided between the inner wall of the first air guide section 311 and the outer periphery of the wind rotor body 10, which is beneficial to increase the path of the tip vortex generated by the rotation of the wind rotor body 10 moving toward the inner wall of the first air guide section 311, so that the tip vortex can better decay the flow velocity during the movement, which is beneficial to better reduce the force of the tip vortex on the inner wall of the wind guide channel 31, and further improve the noise reduction effect of the wind rotor assembly 100. At the same time, in this range, the gap between the inner wall of the first air guide section 311 and the outer periphery of the wind rotor body 10 can be avoided from being too large, and the area of ​​the airflow expansion in the first air guide section 311 can be avoided from being too large, which may affect the wind gathering effect of the outlet airflow, and further ensure the stable air outlet of the wind rotor assembly 100.

[0060] Secondly, since the inner diameter of the second air guide section 313 gradually decreases along the air outlet direction of the air guide structure 30, the inner diameter of the connection point between the second air guide section 313 and the air inlet 35 can be made the maximum inner diameter d3 of the second air guide section 313. By making the maximum inner diameter d3 of the second air guide section 313 and the inner diameter d1 of the flow port 33 satisfy the relationship: 0.1H≤(d3-d1) / 2≤0.3H, the gap formed between the inner wall at the maximum air inlet area of ​​the second air guide section 313 and the edge of the flow port 33 is in the range of 0.1H to 0.3H. Within this range, a larger space can be provided in the second air guide section 313 to accommodate the wind wheel body 10, avoiding interference between the wind wheel body 10 and the inner wall of the second air guide section 313. At the same time, a certain ratio is provided between the area of ​​the second air guide section 313 and the flow port 33, which is conducive to better realizing the concentrated air intake effect of the second air guide section 313 and ensuring the air intake volume of the wind wheel assembly 100. Moreover, within this range, the maximum air inlet area of ​​the second air guide section 313 will not be too large, which is beneficial to reducing the wind energy loss when the airflow enters the second air guide section 313, so that the airflow can be more stably guided by the wind wheel to act on the heat exchanger 600 for heat dissipation, further improving the practicality and reliability of the wind wheel assembly 100.

[0061] The present invention also proposes an air-conditioning outdoor unit 1000, which includes a body 200 and a wind wheel assembly 100. The specific structure of the wind wheel assembly 100 refers to the above-mentioned embodiment. Since the air-conditioning outdoor unit 1000 adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0062] The present invention also proposes an air conditioner, which includes an air conditioner indoor unit and an air conditioner outdoor unit 1000. The specific structure of the air conditioner outdoor unit 1000 refers to the above-mentioned embodiment. Since this air conditioner adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0063] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A wind wheel assembly, characterized in that: include: Wind wheel body; An air guiding structure is provided with an air guiding channel, the wind wheel body is at least partially provided in the air guiding channel, the air guiding channel is provided with a first air guiding section, the inner wall of the first air guiding section is arranged in an arc shape, and is arranged in a recessed manner facing away from the rotation center axis of the wind wheel body, and the inner diameter of the first air guiding section is arranged to gradually increase along the air outlet direction of the wind guiding structure.

2. The wind wheel assembly according to claim 1, characterized in that: The air guide channel is further provided with a second air guide section, and the air guide structure is provided with a flow port connecting the first air guide section and the second air guide section; An air inlet connected to the second air guiding section is provided on one side of the air guiding structure, and the inner diameter of the flow port is smaller than or equal to the inner diameter of the air inlet.

3. The wind wheel assembly according to claim 2, characterized in that: The inner wall of the second air guiding section is arranged in an arc shape and is arranged to protrude toward the rotation center axis of the wind wheel body. The inner diameter of the second air guiding section is arranged to gradually decrease along the air outlet direction of the air guiding structure.

4. The wind wheel assembly according to claim 3, characterized in that: The air guide channel is further provided with a DC air outlet section, and the second air guide section, the first air guide section and the DC air outlet section are sequentially connected and arranged along the air outlet direction of the air guide structure; The inner diameter of the DC air outlet section is greater than or equal to the maximum inner diameter of the first air guide section, and an air outlet connected to the DC air outlet section is provided on the other side of the air guide structure.

5. The wind wheel assembly according to claim 4, characterized in that: Part of the wind wheel body is exposed at the air inlet, and the width of the wind wheel body along the wind outlet direction of the wind guide structure is defined as W, and the width of the wind guide channel along the wind outlet direction of the wind guide structure is defined as H, 0.2W≤H≤0.5W.

6. The wind wheel assembly according to claim 5, characterized in that: The width of the first air guiding section along the air outlet direction of the air guiding structure is defined as h1, 0.4H≤h1≤0.7H; And / or, a width of the second air guiding section along the air outlet direction of the air guiding structure is defined as h2, 0.1H≤h2≤0.3H; And / or, a width of the DC air outlet section along the air outlet direction of the air guide structure is defined as h3, where h3≤0.2H.

7. The wind wheel assembly according to claim 5, characterized in that: The maximum outer diameter of the wind wheel body is defined as D, the inner diameter of the flow port is defined as d1, and 8mm≤d1-D≤20mm.

8. The wind wheel assembly according to claim 7, characterized in that: The maximum inner diameter of the first air guide section is defined as d2, 0.4H≤(d2-d1) / 2≤0.7H; And / or, define the maximum inner diameter of the second air guide segment as d3, 0.1H≤(d3-d1) / 2≤0.3H.

9. The wind wheel assembly according to claim 4, characterized in that: The inner diameter of the air inlet is smaller than the inner diameter of the air outlet.

10. An air conditioner outdoor unit, characterized in that: The air conditioner outdoor unit comprises a body and a wind wheel assembly, wherein the wind wheel assembly is the wind wheel assembly as described in any one of claims 1 to 9, and the wind wheel assembly is disposed in the body.

11. An air conditioner, characterized in that: The air conditioner comprises an air conditioner indoor unit and an air conditioner outdoor unit, the air conditioner outdoor unit is the air conditioner outdoor unit according to claim 10, and the air conditioner outdoor unit is connected to the air conditioner indoor unit.

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