Air handling device

Abstract

The utility model discloses an air treatment equipment, including the air outlet grille, the air outlet grille includes: the grid vane, a plurality of grid vanes interval arrangement, the grid vane includes first air guide portion and second air guide portion, and first air guide portion is compared to the center of second air guide portion away from the air outlet grille, and first air guide portion is used to guide at least partial airflow to first direction, and second air guide portion is used to guide at least partial airflow to second direction, wherein, first direction at least partial difference from second direction.

Description

[0001] This application claims priority to Chinese Patent Application No. 202520636034.3, filed on April 2, 2025, entitled "Windmill Assembly, Air Guide Assembly and Air Outlet Grille for Air Handling Equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This utility model belongs to the field of electrical equipment technology, specifically relating to an air handling device. Background Technology

[0003] When ventilation equipment, air handling equipment, and other similar equipment are in operation, uneven airflow often occurs on the outlet side of the equipment, which increases the noise of the air supply and affects the performance of the equipment and the user experience. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the related art.

[0005] Therefore, this utility model provides an air handling device. The air handling device includes: grille blades, with a plurality of grille blades arranged at intervals; the grille blades include a first air guide section and a second air guide section, the first air guide section being farther away from the center of the air outlet grille than the second air guide section, the first air guide section being used to guide at least a portion of the airflow in a first direction, and the second air guide section being used to guide at least a portion of the airflow in a second direction, the first direction being at least partially different from the second direction.

[0006] In one possible implementation, the first direction is closer to the horizontal direction than the second direction.

[0007] In one possible implementation, the second air guide is used to guide at least a portion of the airflow in a near-vertical direction, and the first air guide is used to guide at least a portion of the airflow in an inclined direction, the angle between the inclined direction and the horizontal plane being θ, where 0 ≤ θ < 90°.

[0008] In one possible implementation, the grille blades include a torsion structure, wherein the degree of torsion of the first air guide is greater than that of the second air guide.

[0009] In one possible implementation, the first air guide and the second air guide are connected. The end of the first air guide away from the second air guide has a first torsion angle λ1 relative to the vertical direction, and the end of the second air guide away from the first air guide has a second torsion angle λ2 relative to the vertical direction, wherein λ1 > λ2, and the absolute value of the difference between λ1 and λ2 is less than a first difference threshold.

[0010] In one possible implementation, the grille blade further includes a connecting portion, and the first air guide portion and the second air guide portion are connected to each other at the connecting portion. In the extending direction of the grille blade, the distance between the end of the first air guide portion away from the second air guide portion and the connecting portion is L, and L is less than or equal to a first distance threshold.

[0011] In one possible implementation, two adjacent first air guides define a first air outlet area, and two adjacent second air guides define a second air outlet area, wherein the first air outlet area is larger than the second air outlet area.

[0012] In one possible implementation, two adjacent first air guides define a first air outlet area, and two adjacent second air guides define a second air outlet area. When air passes through the air outlet grille, the airflow velocity in the first air outlet area is greater than the airflow velocity in the second air outlet area, or the airflow velocity in the first air outlet area is less than the airflow velocity in the second air outlet area.

[0013] In one possible implementation, the grille blade includes: a second air guide portion near the center of the air outlet grille; a connecting portion including a first end and a second end, the first end being connected to one end of the second air guide portion; a first air guide portion connected to the second end of the connecting portion; wherein at least a portion of the width of the second air guide portion is smaller than at least a portion of the width of the first air guide portion; and the width of the connecting portion increases along the direction from the first end to the second end.

[0014] In one possible implementation, the spacing of at least a portion of the gap between adjacent second air guides in adjacent grille blades is greater than the spacing of at least a portion of the gap between adjacent first air guides.

[0015] In one possible implementation, the grille blades are inclined relative to the axis of the air outlet grille; along the air outlet direction of the air outlet grille, the tangent at at least one point on the surface of the grille blades makes an angle α with the axis of the air outlet grille. Wherein, 0°<α≤30°.

[0016] In one possible implementation, the air outlet grille further includes a support plate and a support ring, with the support ring surrounding the support plate; wherein multiple grille blades are spaced apart between the support plate and the support ring, and adjacent grille blades define the air outlet channel; along the direction in which the grille blades extend from the support plate to the support ring, the width of the second air guide first decreases and then increases.

[0017] The beneficial effects of this utility model are:

[0018] The air outlet grille provided in this embodiment of the utility model allows the first air guide section and the second air guide section to have different air guiding directions, so that the airflow discharged from the air outlet grille can have multiple different airflow directions. The airflows with multiple different airflow directions can intersect, guide, push or influence each other, thereby guiding the airflow to a greater distance and improving the uniformity and coverage of the airflow discharged from the air handling equipment.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A three-dimensional structural diagram of the wind turbine assembly provided in this embodiment of the utility model. Figure 1 ;

[0022] Figure 2 A three-dimensional structural diagram of the wind turbine assembly provided in this embodiment of the utility model. Figure 2 ;

[0023] Figure 3 A cross-sectional view of the wind turbine assembly provided in an embodiment of this utility model;

[0024] Figure 4 A partial top view of the wind turbine assembly provided in an embodiment of this utility model;

[0025] Figure 5 A three-dimensional structural diagram of the wind turbine structure provided in this embodiment of the utility model. Figure 1 ;

[0026] Figure 6 A three-dimensional structural diagram of the wind turbine structure provided in this embodiment of the utility model. Figure 2 ;

[0027] Figure 7 This is a cross-sectional view of the wind turbine structure provided in an embodiment of the present utility model;

[0028] Figure 8 A three-dimensional structural schematic diagram of the air guide assembly provided in an embodiment of this utility model;

[0029] Figure 9 Schematic cross-sectional view of the air guide assembly provided in the embodiment of this utility model Figure 1 ;

[0030] Figure 10 Schematic cross-sectional view of the air guide assembly provided in the embodiment of this utility model Figure 2 ;

[0031] Figure 11 A three-dimensional structural schematic diagram of the air outlet grille provided for an embodiment of this utility model;

[0032] Figure 12 for Figure 11 Enlarged view of point A in the middle;

[0033] Figure 13 Schematic cross-sectional view of the airflow regulating component provided in the embodiment of this utility model Figure 1 ;

[0034] Figure 14 Schematic cross-sectional view of the airflow regulating component provided in the embodiment of this utility model Figure 2 ;

[0035] Figure 15 Schematic cross-sectional view of the airflow regulating component provided in the embodiment of this utility model Figure 3 ;

[0036] Figure 16 Schematic cross-sectional view of the airflow regulating component provided in the embodiment of this utility model Figure 4 ;

[0037] Figure 17 This is a schematic diagram of the structure of the air handling equipment provided in an embodiment of the present utility model;

[0038] Figure 18 A schematic diagram of the airflow direction of the air handling equipment provided in this embodiment of the utility model.

[0039] Explanation of reference numerals in the attached figures:

[0040] 10: Wind turbine assembly; 11: Blade; 111: First blade section; 112: Second blade section; 1121: Torsion region; 113: Blade connection section; 12: First hub; 13: High-pressure airflow zone; 14: Air guide plate; 15: Air guide ring plate; 16: Impeller cover;

[0041] 20: Wind turbine structure; 21: Guide vane; 22: Guide ring plate; 221: Guide plate; 23: Impeller cover; 24: Second hub;

[0042] 30: Air guide assembly; 31: Air guide blades; 32: Clearance section; 33: Inner ring; 34: Outer ring; 35: Motor bracket;

[0043] 40: Air outlet grille; 41: Grille blade; 413: First air guide section; 412: Connecting part; 411: Second air guide section; 42: Support plate; 43: Support ring;

[0044] 50: Airflow regulation component;

[0045] 100: Air handling equipment; 101: Air duct; 1011: First flow section; 1012: Second flow section; 102: Motor assembly; 103: Control device; 104: Air duct wall; 105: Suction grille. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0048] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0049] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0050] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0051] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0052] like Figures 1 to 4 As shown, in a first aspect of this utility model, a wind turbine assembly 10 of an air handling device is provided, including blades 11. A plurality of blades 11 are arranged at circumferential intervals along the wind turbine assembly 10 to form an airflow channel. At least a portion of the blades 11 is used to guide the airflow passing through the airflow channel towards a predetermined direction of the wind turbine assembly 10. The predetermined direction of the wind turbine assembly 10 can be the axial direction of the wind turbine assembly 10, or a direction forming an angle K with the axial direction of the wind turbine assembly 10, where K is less than 90°. This direction can be towards the air intake side away from the wind turbine assembly 10, or it can be towards the first hub 12 of the wind turbine assembly 10, as will not be elaborated further below. Furthermore, in this utility model embodiment, the axial direction of the wind turbine assembly 10 and the axial direction of the wind turbine assembly 10 can be the same direction, as will not be elaborated further below.

[0053] Multiple blades 11 are arranged at intervals along the circumference of the wind turbine assembly 10 to form an airflow channel, so as to transport gas from the air inlet side of the wind turbine assembly 10 to the air outlet side of the wind turbine assembly 10, thereby realizing gas transport and driving gas flow to form an airflow.

[0054] Figure 1 The symbol D is used to indicate an airflow channel. An airflow channel can be formed between two adjacent blades 11. Multiple blades 11 arranged at intervals can form multiple airflow channels. Gas enters the wind turbine assembly 10 from the inlet side and flows through multiple airflow channels to the outlet side of the wind turbine assembly 10, thus achieving gas delivery.

[0055] At least a portion of the blade 11 is used to guide the airflow through the airflow channel towards a predetermined direction of the wind turbine assembly 10. That is, part or all of the blade 11 is used to guide the airflow through the airflow channel towards a predetermined direction of the wind turbine assembly 10. By using at least a portion of the blade 11 to guide the airflow through the airflow channel towards a predetermined direction of the wind turbine assembly 10, the impact of the airflow from the wind turbine assembly 10 on the duct wall 104 is reduced, thereby reducing the noise of the equipment operation and improving the performance of the equipment and the user experience.

[0056] It should be noted that, as Figure 2As shown, A1 indicates the tail of blade 11, A2 indicates the tip of blade 11, A3 indicates the leading edge of blade 11, A4 indicates the trailing edge of blade 11, and A5 indicates the flow of gas from the inlet side of the wind turbine assembly 10 towards the leading edge of blade 11. The tail of blade 11 can be understood as the position of blade 11 near the inlet side of the wind turbine assembly 10. The tip of blade 11 can be understood as the position of blade 11 away from the inlet side of the wind turbine assembly 10. The leading edge of blade 11 can be understood as the edge that first contacts the gas during the rotation of blade 11. The trailing edge of blade 11 can be understood as the edge where the airflow leaves blade 11 during rotation. Under the rotation of blade 11, the gas from the inlet side of the wind turbine assembly 10 enters the wind turbine assembly 10 and flows towards the leading edge of blade 11.

[0057] It should be noted that, as Figure 3 As shown, the dashed line L1 indicates the axis of the wind turbine assembly 10, which can be understood as the central straight line around which the wind turbine assembly 10 rotates. The axial direction of the wind turbine assembly 10 can be understood as the direction along its axis. The circumferential direction of the wind turbine assembly 10 can be understood as the direction of its circular motion around its axis, i.e., the circumferential direction of the wind turbine assembly 10. The radial direction of the wind turbine assembly 10 can be understood as the direction within its plane of rotation, from its central region to its edge region. The central region of the wind turbine assembly 10 can be understood as the region close to its axis. The edge region of the wind turbine assembly 10 can be understood as the outer periphery of the wind turbine assembly 10, which is away from its axis.

[0058] In some embodiments, combined with Figures 1 to 4 As shown, at least one blade 11 is twisted to guide the airflow through the airflow channel towards a predetermined direction of the wind turbine assembly 10. Specifically, twisting the blade 11 means that after manufacturing, the shape of the blade 11 is twisted, with at least a portion of the blade 11 twisted relative to another portion, to guide the airflow towards the predetermined direction of the wind turbine assembly 10. By twisting at least one blade 11, the airflow direction can be adjusted, reducing the impact of the airflow from the wind turbine assembly 10 on the duct wall 104, thereby reducing the noise of the equipment operation and improving the performance of the equipment and the user experience.

[0059] In some embodiments, combined with Figures 1 to 4 As shown, at least one blade 11 includes two regions forming an angle. The region closer to the top of the blade 11 is used to guide airflow in a predetermined direction to the wind turbine assembly 10.

[0060] Wherein, at least one blade 11 includes two regions forming an angle, meaning that some or all of the blades 11 of the wind turbine assembly 10 have two regions forming an angle. By forming two regions forming an angle, the gas flow can be turned when it reaches these two regions, guiding the airflow through the airflow channel toward a predetermined direction of the wind turbine assembly 10, thereby regulating the direction of gas flow.

[0061] The portion of the two regions closer to the top of the blade 11 is farther from the air inlet side of the wind turbine assembly 10, that is, closer to the air outlet side of the wind turbine assembly 10. By using the portion of the two regions closer to the top of the blade 11 to guide the airflow in a preset direction, the impact of the air outlet of the wind turbine assembly 10 on the duct wall 104 is reduced, thereby reducing the noise of the equipment operation and improving the performance of the equipment and the user experience.

[0062] In some embodiments, combined with Figures 1 to 4 As shown, the two regions forming the included angle include a first blade portion 111 and a second blade portion 112. The first blade portion 111 is closer to the tail of the blade 11 than the second blade portion 112. The second blade portion 112 is closer to the tip of the blade 11 than the first blade portion 111. The second blade portion 112 is twisted relative to the first blade portion 111. Alternatively, along the direction from the tail to the tip of the blade 11, the second blade portion 112 is inclined relative to the axis of the rotor assembly 10. Alternatively, the inclination of the second blade portion 112 is greater than that of the first blade portion 111. Alternatively, the angle between the tangent at the trailing edge of the blade 11 and the axis of the rotor assembly 10 is γ1, and the angle between the tangent at the tip of the trailing edge of the blade 11 and the axis of the rotor assembly 10 is γ2, where γ1 is less than γ2.

[0063] The first blade portion 111 and the second blade portion 112 form an angle, allowing the gas flow to turn when it reaches the first blade portion 111 and the second blade portion 112, thereby adjusting the direction of gas flow.

[0064] By positioning the first blade portion 111 closer to the tail of the blade 11 compared to the second blade portion 112, the first blade portion 111 can drive the gas flow to form an airflow. Under the rotation of the blade 11, the first blade portion 111 can drive the gas flow, gradually forming an airflow with a certain speed and pressure, achieving initial pressurization and power accumulation.

[0065] By having the second blade portion 112 closer to the top of the blade 11 compared to the first blade portion 111, the second blade portion 112 can guide the airflow to the preset direction of the impeller assembly 10, adjust the flow direction of the airflow, reduce the impact of the air outlet of the impeller assembly 10 on the duct wall 104, thereby reducing the noise of the equipment operation and improving the performance of the equipment and the user experience.

[0066] By twisting the second blade portion 112 relative to the first blade portion 111, the first blade portion 111 and the second blade portion 112 form an angle, allowing the gas to turn when flowing to the first blade portion 111 and the second blade portion 112, thereby adjusting the direction of gas flow, reducing the impact of the air outlet of the impeller assembly 10 on the duct wall 104, and thus reducing the noise of the equipment operation.

[0067] By tilting the second blade portion 112 towards the axis of the wind turbine assembly 10 relative to the first blade portion 111 along the direction from the tail to the top of the blade 11, the first blade portion 111 and the second blade portion 112 form an angle, thereby adjusting the flow direction of the airflow and guiding the airflow towards the preset direction of the wind turbine assembly 10. This reduces the impact between the airflow from the wind turbine assembly 10 and the duct wall 104, thereby reducing the noise of the equipment operation and improving the performance of the equipment and the user experience.

[0068] It is understood that the first blade portion 111 may be tilted toward the axis of the wind turbine assembly 10, or it may not be tilted toward the axis of the wind turbine assembly 10 (for example, the first blade portion 111 may be parallel to the axis of the wind turbine assembly 10). The tilt of the second blade portion 112 is greater than that of the first blade portion 111, that is, the tilt of the second blade portion 112 toward the axis of the wind turbine assembly 10 is greater than that of the first blade portion 111 toward the axis of the wind turbine assembly 10, so that the first blade portion 111 and the second blade portion 112 form an angle, which adjusts the flow direction of the airflow, guides the airflow toward the preset direction of the wind turbine assembly 10, reduces the impact of the airflow from the wind turbine assembly 10 on the duct wall 104, thereby reducing the noise of the equipment operation and improving the performance of the equipment and the user experience.

[0069] like Figure 1 As shown, the trailing edge of blade 11 can be understood as the point where the trailing edge of blade 11 intersects with the guide vane 14. Figure 1 The dashed line Q1 is used to indicate the tangent at the trailing edge of blade 11. The apex of the trailing edge of blade 11 can be understood as the point on the trailing edge of blade 11 that is farthest from the trailing edge, or as the point where the trailing edge and the apex of blade 11 intersect. Figure 1 The dashed line Q2 is used to indicate the tangent at the tip of the trailing edge of blade 11. Figure 1 The dashed line L1 indicates the axis of the wind turbine assembly 10, and the L1 within parentheses indicates a line parallel to the axis of the wind turbine assembly 10. By making γ1 less than γ2, the first blade portion 111 and the second blade portion 112 can form an angle, adjusting the airflow direction and guiding the airflow towards the axial direction of the wind turbine assembly 10. This reduces the impact of the airflow from the wind turbine assembly 10 on the duct wall 104, thereby reducing the noise of the equipment operation and improving the performance and user experience of the equipment.

[0070] For example, when the impeller assembly 10 of this embodiment is applied to the air handling equipment 100, the first blade 111 can drive the gas flow to form an airflow, accelerating and pressurizing the gas entering the impeller assembly 10, causing the gas to flow from the central region of the impeller assembly 10 to the edge region of the impeller assembly 10, and can be tangentially output along the edge of the impeller assembly 10, forming a high-pressure core area, providing initial pressurization and kinetic energy accumulation for subsequent processing (such as steering, conveying, etc.). The second blade 112 can guide at least part of the airflow formed by the first blade 111 to a preset direction of the impeller assembly 10, reducing the direct impact between the air outlet of the impeller assembly 10 and the air duct wall 104 of the air handling equipment 100, thereby reducing equipment operating noise, reducing energy loss, improving the stability and uniformity of airflow, and thus improving the working efficiency of the equipment.

[0071] In some embodiments, such as Figures 1 to 3 As shown, the first blade portion 111 includes a centrifugal section, which is at least used to drive the gas from the central region of the wind turbine assembly 10 to the edge region of the wind turbine assembly 10. The second blade portion 112 includes a diagonal flow section, which is at least used to guide the gas flow direction towards a predetermined direction of the wind turbine assembly 10.

[0072] By using a centrifugal section to drive the gas from the central region of the wind turbine assembly 10 to its edge region, the airflow can be output tangentially along the edge of the wind turbine assembly 10. Specifically, the centrifugal section can accelerate the gas flow, acting as a pressurizer and providing kinetic energy for subsequent airflow guidance. The centrifugal section can also guide the direction of gas flow, causing the gas flow to form an airflow.

[0073] The oblique flow section guides at least a portion of the airflow output from the centrifugal section towards a predetermined direction of the impeller assembly 10, reducing the direct impact between the outlet air of the impeller assembly 10 and the duct wall 104, thus lowering noise. The oblique flow section can also guide a portion of the gas entering the inlet side of the impeller assembly 10, causing this portion of gas to form an airflow and flow towards the predetermined direction of the impeller assembly 10, further reducing the direct impact between the outlet air of the impeller assembly 10 and the duct wall 104, and lowering noise.

[0074] Through the synergistic effect of the centrifugal section and the oblique flow section, the airflow can be processed in stages. The centrifugal section pressurizes and accelerates the gas, while the oblique flow section guides the airflow, reducing direct impact between the airflow and the duct wall 104, improving airflow stability and efficiency, and reducing noise. Moreover, the oblique flow section can also reduce the generation of vortex separation during the operation of the centrifugal section, thereby reducing airflow friction noise.

[0075] Specifically, the first blade section 111 includes a centrifugal section. Rotation of the impeller assembly 10 drives the centrifugal section to rotate, drawing gas from the inlet side of the impeller assembly 10 to its central region. Based on the principle of centrifugal force, the gas in the central region of the impeller assembly 10 is subjected to centrifugal force and thrown from the center towards the edge region. This process increases the gas flow velocity, providing a higher kinetic energy basis for subsequent airflow processing (e.g., steering, conveying). As the centrifugal section rotates, gas accumulates in the edge region of the impeller assembly 10, increasing the gas pressure and achieving pressurization. In practical applications (e.g., in ventilation systems), this pressurization allows gas to be transported over longer distances, improving equipment performance.

[0076] Furthermore, the centrifugal section can achieve the first reversal of the gas flow, that is, the flow direction of the gas from the air intake side of the impeller assembly 10 to the central region of the impeller assembly 10 is gradually changed to tangential output along the edge of the impeller assembly 10. This can reduce the direct impact of the airflow on the duct wall 104, reduce noise, and also prepare for the subsequent reversal of the airflow by the oblique flow section.

[0077] The tangential direction of the edge of the wind turbine assembly 10 can be understood as the tangential direction of the circumferential edge of the wind turbine assembly 10. The circumferential edge of the wind turbine assembly 10 can be formed as a circle or close to a circle, so the rotation of the wind turbine assembly 10 can drive the gas to be output along the tangential direction of the edge of the wind turbine assembly 10.

[0078] The second blade section 112 includes a diagonal flow section, where the centrifugal section accelerates and pressurizes the gas to form an airflow, and the diagonal flow section can redirect at least a portion of the airflow a second time. That is, the flow direction of at least a portion of the gas is guided along or approximately along the axial direction of the wind turbine assembly 10, reducing the direct impact between the exhaust air of the wind turbine assembly 10 and the duct wall 104, improving the stability and efficiency of the airflow, and reducing noise.

[0079] During the process of redirecting the airflow, the oblique flow section can further increase the gas pressure, enabling the impeller assembly 10 to be used in applications with high gas pressure requirements. For example, when applied to a ventilation system with a long air duct 101, the impeller assembly 10 performs two pressurizations on the gas (the centrifugal section pressurizes the gas for the first time, and the oblique flow section pressurizes the gas for the second time), overcoming the resistance of the long air duct 101 and meeting the conveying requirements.

[0080] Furthermore, the rotation of the impeller assembly 10 drives the diagonal flow section to rotate, which makes the gas distribution within the air duct 101 (at the same cross-sectional position) more uniform, reducing the possibility of excessively low or high local flow velocities in the air duct 101 and improving the performance of the equipment. For example, when applied to air purification equipment, the diagonal flow section makes the airflow evenly distributed within the air duct 101, which helps to ensure that the airflow makes full contact with the filter screen and improves the purification effect.

[0081] Furthermore, as the impeller assembly 10 rotates, the centrifugal section and the diagonal flow section work together. The centrifugal section provides the gas with a force perpendicular or nearly perpendicular to the rotation axis, while the diagonal flow section provides the gas with a force at a certain angle to the rotation axis (e.g., neither parallel nor perpendicular to the rotation axis). The synchronized rotation of the centrifugal and diagonal flow sections creates uniform airflow, reduces localized high pressure and air backflow, improves efficiency, increases the delivered air volume, and reduces noise. When the device is an air purifier, it can increase the clean air delivery rate (CADR).

[0082] Additionally, it should be noted that while centrifugal impellers (with centrifugal blades) can provide high-pressure airflow, they suffer from significant energy loss, and high-speed centrifugation can easily lead to turbulent noise. While diagonal-flow impellers offer high flow efficiency, their airflow is limited under high-pressure conditions, making it difficult to meet long-distance air delivery requirements. The impeller assembly 10 in this embodiment includes blades 11 with centrifugal and diagonal flow sections. This allows for the formation of high-pressure airflow as gas flows from the central region to the edge region of the impeller assembly 10, and also enables the airflow to flow in a predetermined direction within the impeller assembly 10, reducing energy loss, lowering turbulent noise, and achieving long-distance air delivery.

[0083] In one possible implementation, such as Figure 1 As shown, the first blade section 111 can be a centrifugal section, and the second blade section 112 can be a diagonal flow section.

[0084] In one possible implementation, the centrifugal section and the diagonal flow section can be an integrated structure, enabling the centrifugal section and the diagonal flow section to rotate synchronously.

[0085] The centrifugal section and the diagonal flow section can be manufactured as a single piece.

[0086] The centrifugal section and the diagonal flow section can be manufactured independently and then fixedly connected (e.g., by snap-fit, bolt connection, etc.) to form a whole. This facilitates assembly, maintenance, and component replacement, improves the versatility and maintainability of the wind turbine assembly 10, reduces maintenance costs, and makes it easier to make local improvements and optimizations to the wind turbine assembly 10.

[0087] In one possible implementation, the centrifugal section and the diagonal flow section can be separate structures, allowing the centrifugal section and the diagonal flow section to rotate asynchronously.

[0088] In some embodiments, such as Figures 1 to 4 As shown, along the radial direction of the wind turbine assembly 10, the first blade portion 111 and the second blade portion 112 extend outward in an arc shape.

[0089] Specifically, along the radial direction of the wind turbine assembly 10, the first blade portion 111 extends outward in an arc shape. This can be understood as the first blade portion 111 having an overall arc-shaped structure, extending outward from the center region to the edge region of the wind turbine assembly 10, allowing the gas entering the wind turbine assembly 10 to form an airflow. Furthermore, the arc-shaped extension structure of the first blade portion 111 reduces direct impact between the exhaust air and the duct wall 104, thus lowering noise.

[0090] Along the radial direction of the wind turbine assembly 10, the second blade portion 112 extends outward in an arc shape. This can be understood as the second blade portion 112 having an overall arc-shaped structure, extending outward from the central region to the edge region of the wind turbine assembly 10, allowing the gas entering the wind turbine assembly 10 to form an airflow. Furthermore, through the arc-shaped extension structure of the second blade portion 112 and its inclination towards the axis of the wind turbine assembly 10, at least a portion of the airflow within the wind turbine assembly 10 is guided in a predetermined direction, reducing the direct impact of the exhaust air from the wind turbine assembly 10 on the duct wall 104 and lowering noise.

[0091] In some embodiments, such as Figure 1 and Figure 4 As shown, the second blade portion 112 includes a twisted region 1121, which is located near the trailing edge of the blade. The twisted region 1121 twists towards the center region of the impeller relative to the direction from the leading edge to the trailing edge of the first blade portion 111.

[0092] Relative to the leading and trailing edges of the first blade portion 111, the twisting region 1121 twists towards the center region of the impeller. That is, the region of the second blade portion 112 near the trailing edge of the blade 11 twists towards the center region of the impeller, forming the twisting region 1121. When airflow reaches the twisting region 1121 of the second blade portion 112, the twisting region 1121 guides the airflow. Specifically, the second blade portion 112 can guide the airflow in a preset direction and also guide the airflow flowing to the trailing edge of the blade 11 through the twisting region 1121, further reducing the direct impact between the exhaust air of the impeller assembly 10 and the duct wall 104, reducing noise, and reducing energy loss.

[0093] The leading edge of the first blade portion 111 is the region where the leading edge of the blade 11 is located within the first blade portion 111. The trailing edge of the first blade portion 111 is the region where the trailing edge of the blade 11 is located within the first blade portion 111. The direction from the leading edge to the trailing edge of the first blade portion 111 can be understood as the direction of extension of the first blade portion 111. Figure 4 As shown, L2 is used to indicate the direction from the leading edge to the trailing edge of the first blade portion 111.

[0094] In some embodiments, such as Figure 3 As shown, in the axial section of the blade 11, the first blade portion 111 is formed as an arc-shaped section, and the arc-shaped section protrudes away from the predetermined direction. The second blade portion 112 is formed as an inclined surface, and along the direction from the tail to the top of the blade 11, the inclined surface is close to the predetermined direction.

[0095] Specifically, the blade 11 is cut along the axial direction of the wind turbine assembly 10 to obtain the axial cross-section of the blade 11. For example... Figure 3 As shown, surface P1 is used to illustrate the arc-shaped cross-section, and surface P2 is used to illustrate the inclined plane.

[0096] By protruding the arc-shaped cross-section away from the preset direction, the contact area between the first blade 111 and the gas can be increased, effectively converging the gas to form an airflow. This improves the efficiency of the first blade 111 in driving the gas flow to form an airflow, allowing the gas to gain more energy when in contact with the first blade 111, enhancing the pressurization effect of the airflow, improving the stability of the airflow, and reducing noise.

[0097] In this process, along the direction from the tail to the top of the blade 11, the inclined surface is close to the preset direction of the wind turbine assembly 10, so that the second blade portion 112 is inclined towards the preset direction of the wind turbine assembly 10 compared to the first blade portion 111. This adjusts the direction of the airflow, guides the airflow towards the preset direction of the wind turbine assembly 10, reduces the radial flow of airflow from the wind turbine assembly 10, and further reduces the direct collision between the airflow and the duct wall 104, thereby reducing energy loss and noise.

[0098] Furthermore, by forming an arc-shaped cross section for the first blade portion 111 and an inclined slope for the second blade portion 112 in the axial section of the blade 11, the first blade portion 111 and the second blade portion 112 can continuously guide the gas, thereby achieving continuity in the process of driving the gas to form an airflow and adjusting the flow direction of the airflow, and thus achieving stability in the airflow delivery.

[0099] In some embodiments, such as Figure 3 As shown, the intersection line of the inclined plane near the axis of the wind turbine assembly 10 forms an angle θ with the axis of the wind turbine assembly 10. Wherein, 45°≥θ≥10°.

[0100] like Figure 3 As shown, the dashed line L3 is used to indicate the extension of the intersection line of the inclined plane near the axis of the wind turbine assembly 10.

[0101] If θ is too large, turbulence is easily generated during the rotation of the wind turbine assembly 10. If θ is too small, it is difficult to achieve the guiding effect. By using 45°≥θ≥10°, it is possible to guide the high-pressure airflow to the preset direction of the wind turbine assembly 10 while reducing the generation of turbulence.

[0102] In one possible implementation, θ is 10°, 12°, 15°, 20°, 28°, 30°, 36°, 40°, 45°, or other angle values ​​between 10° and 45°.

[0103] In some embodiments, such as Figure 2 and Figure 3 As shown, the leading edge of blade 11 is arc-shaped. Along the direction from the tail to the top of blade 11, the leading edge of blade 11 is close to the central region of the wind turbine assembly 10.

[0104] Specifically, the leading edge of the blade 11 is arc-shaped, bulging toward the central region of the wind turbine assembly 10. Furthermore, along the direction from the tail to the top of the blade 11, the leading edge of the blade 11 gets closer and closer to the central region of the wind turbine assembly 10, making the leading edge of the blade 11 streamlined.

[0105] Gas enters the impeller assembly 10 from the inlet side and flows towards the leading edge of the blades 11. Because the leading edge of the blades 11 is arc-shaped and gets closer and closer to the center of the impeller assembly 10, the gas can flow more evenly to all areas of the leading edge of the blades 11. This reduces the possibility of localized excessively high or low negative pressure in the center of the impeller assembly 10, improving gas utilization and reducing noise. Furthermore, when the gas flows into the airflow channel between two adjacent blades 11, the more even distribution of gas across the leading edge of the blades 11 results in a more uniform gas velocity within the airflow channel, reducing vortices caused by uneven gas velocity. When applied to air purifiers, this improves the overall purification efficiency and reduces operating noise.

[0106] In some embodiments, such as Figure 1 and Figure 2 As shown, the wind turbine assembly 10 also includes a wind guide plate 14, which is connected between the tails of adjacent blades 11 and extends radially outward along the wind turbine assembly 10. At least a portion of the wind guide plate 14 protrudes toward the side opposite to the blades 11, so that the wind guide plate 14 forms a recess between the tails of adjacent blades 11.

[0107] Specifically, the air guide plate 14 is connected between the tails of two adjacent blades 11, which can guide the airflow between the two adjacent blades 11 in a preset direction, further reducing the direct impact of airflow on the duct wall 104 and improving the utilization rate of gas.

[0108] At least a portion of the air guide plate 14 protrudes toward the side opposite to the blade 11, so that the air guide plate 14 forms a recess between the tails of adjacent blades 11, thereby reducing the impact and friction between the airflow and the air guide plate 14, and thus reducing noise.

[0109] It should be noted that the specific position of the air guide plate 14 protruding towards the side away from the blade 11 is not limited. For example, the middle part of the air guide plate 14 protrudes towards the side away from the blade 11 so that the air guide plate 14 forms a depression between the tails of two adjacent blades 11.

[0110] In one possible implementation, such as Figure 1 and Figure 2 As shown, the air guide plate 14 is connected to the tail of the blade 11 near the outer edge of the blade 11 to guide the airflow in a preset direction.

[0111] In some embodiments, such as Figures 1 to 3 As shown, there are multiple air guide plates 14. The multiple air guide plates 14 are arranged circumferentially along the impeller assembly 10 to form an air guide ring plate 15.

[0112] Multiple air guide plates 14 are arranged circumferentially around the impeller assembly 10 to form an air guide ring plate 15, meaning the air guide ring plate 15 has a roughly wavy ring structure. After gas is drawn into the airflow channel from the intake side of the impeller assembly 10, it flows in the predetermined direction of the impeller assembly 10 under the guidance of the air guide ring plate 15. Combined with the action of the first blade portion 111 and the second blade portion 112, this improves the efficiency of the airflow flowing in the predetermined direction of the impeller assembly 10, further reducing direct collisions between the airflow and the duct wall 104, and lowering noise.

[0113] The air guide ring 15 can be a wave-shaped ring structure formed by connecting multiple air guide plates 14 in sequence, or it can be a one-piece wave-shaped ring structure.

[0114] In some embodiments, such as Figures 1 to 3 As shown, the wind turbine assembly 10 also includes an impeller cover 16. The impeller cover 16 is connected to the tail of the blade 11. The blade 11 also includes a blade connecting portion 113, which is connected to the side of the first blade portion 111 opposite to the second blade portion 112. The side of the blade connecting portion 113 opposite to the first blade portion 111 extends to the inner wall of the impeller cover 16.

[0115] By connecting the impeller cover 16 to the tail of the blade 11, the gas can flow smoothly to the blade 11.

[0116] The blade 11 also includes a blade connecting portion 113, which is connected to the side of the first blade portion 111 facing away from the second blade portion 112. That is, the blade connecting portion 113, the first blade portion 111, and the second blade portion 112 can constitute the entire blade 11. The leading edge of the blade 11 as a whole can be arc-shaped. Along the direction from the tail to the top of the blade 11, the leading edge of the blade 11 is close to the central region of the wind turbine assembly 10. For specific beneficial effects, please refer to the technical effects of the arc-shaped leading edge of the blade 11 in the above embodiments, which will not be repeated here.

[0117] The blade connection 113 extends from the side opposite to the first blade portion 111 to the inner wall of the impeller cover 16, forming a gas intake section of the wind turbine assembly 10. The leading edge of the blade 11 is arc-shaped, better conforming to the airflow trend and reducing abrupt changes in airflow and resistance. When gas from the inlet side of the wind turbine assembly 10 enters the assembly, the extension of the blade connection 113 to the inner wall of the impeller cover 16 makes the airflow smoother and more efficient, reducing energy loss and turbulence caused by sudden changes in airflow direction and improving the efficiency of airflow along a predetermined direction.

[0118] Furthermore, by extending the blade connection portion 113 from the side opposite to the first blade portion 111 to the inner wall of the impeller cover 16, the connection between the blade 11 and the impeller cover 16 can be made more stable, improving the overall stability of the wind turbine assembly 10. During the high-speed rotation of the wind turbine assembly 10, the blade 11 and the impeller cover 16 form a stable assembly, which can reduce vibration or deformation of the blade 11, reduce airflow turbulence, improve airflow delivery capacity, and better draw in airflow.

[0119] In one possible implementation, such as Figures 1 to 3 As shown, the impeller cover 16 can be an annular structure with the rotation axis of the wind turbine assembly 10 as its axis, and this annular structure can be an annular structure with the same upper and lower diameters. By making the impeller cover 16 an annular structure with the same upper and lower diameters, the wind turbine assembly 10 can be better demolded and easier to manufacture.

[0120] Alternatively, the impeller cover 16 can be an annular structure with inconsistent upper and lower diameters, for example, it can be a structure that gradually expands away from the air intake side to better draw in airflow.

[0121] In some embodiments, such as Figures 1 to 4 As shown, the wind turbine assembly 10 also includes a first hub 12, which is disposed on top of a plurality of blades 11. The trailing edges of the plurality of blades 11 extend beyond the outer edge of the first hub 12.

[0122] Specifically, the tops of the multiple blades 11 are connected to the first hub 12. That is, the first hub 12 and the impeller cover 16 are located on opposite sides of the multiple blades 11, which facilitates the connection between the first hub 12 and the motor assembly 102 and saves installation space. When the motor assembly 102 drives the wind turbine assembly 10 to rotate, the gas can smoothly enter the wind turbine assembly 10 from the side of the impeller cover 16.

[0123] When the first hub 12 rotates, it can drive multiple blades 11 to rotate, achieving synchronous rotation of the first hub 12 and the blades 11. For example, the first hub 12 can be connected to the drive shaft of the motor assembly 102, and the motor assembly 102 can drive the first hub 12 to rotate, thereby driving multiple blades 11 to rotate synchronously.

[0124] The trailing edges of multiple blades 11 extend beyond the outer edge of the first hub 12. In other words, along the radial direction of the wind turbine assembly 10, the trailing edge of the blades 11 extends beyond the first hub 12, which can increase the air outlet area to a certain extent and help the airflow to flow smoothly from the air outlet side of the wind turbine assembly 10, thereby improving the air supply efficiency.

[0125] It should be noted that the shape of the first hub 12 is not limited; for example, the first hub 12 can be a disc-shaped structure. In application, the first hub 12 can be set perpendicular or nearly perpendicular to the axis of the wind turbine assembly 10.

[0126] In one possible implementation, the top of the blade 11 can be rotatably connected to the first hub 12 to adjust the blade angle according to airflow demand and operating conditions.

[0127] Combination Figures 5 to 7 As shown, this embodiment of the invention also provides a wind turbine structure 20. The wind turbine structure 20 includes multiple guide vanes 21 and a guide ring plate 22. The guide ring plate 22 is connected to the periphery of the multiple guide vanes 21. The multiple guide vanes 21 are used to drive the gas to form a first airflow, and the guide ring plate 22 is used to drive the gas to form a second airflow, the direction of the second airflow intersecting with the direction of the first airflow.

[0128] The guide ring plate 22 is connected to the periphery of the multiple guide blades 21, that is, the guide ring plate 22 is connected to the side of the multiple guide blades 21 away from the axis of the wind turbine structure 20.

[0129] When the wind turbine structure 20 rotates, multiple guide vanes 21 can drive gas flow to form a first airflow, and guide ring plate 22 can drive gas flow to form a second airflow. The second airflow formed at the guide ring plate 22 can form a wind wall. By the intersection of the direction of the second airflow and the direction of the first airflow, at least part of the airflow after the intersection flows along or approximately along the axial direction of the wind turbine structure 20, reducing the impact of the outlet airflow of the wind turbine structure 20 on the duct wall 104, reducing the noise of equipment operation, and improving equipment performance and user experience.

[0130] It should be noted that, as Figure 7 As shown in the figure, the dashed line L4 indicates the axis of the wind turbine structure 20. The axis of the wind turbine structure 20 can be understood as the central straight line around which the wind turbine structure 20 rotates. The axial direction of the wind turbine structure 20 can be understood as the direction along the axis of the wind turbine structure 20. The circumferential direction of the wind turbine structure 20 can be understood as the direction of circular motion around the axis of the wind turbine structure 20, i.e., the circumferential direction of the wind turbine structure 20. The radial direction of the wind turbine structure 20 can be understood as the direction from the central region of the wind turbine structure 20 to the edge region of the wind turbine structure 20 within the plane of rotation of the wind turbine structure 20. The central region of the wind turbine structure 20 can be understood as the region close to the axis of the wind turbine structure 20. The edge region of the wind turbine structure 20 can be understood as the outer peripheral portion of the wind turbine structure 20, which is away from the axis of the wind turbine structure 20.

[0131] In one possible implementation, the guide vane 21 includes centrifugal vanes.

[0132] In some embodiments, such as Figures 5 to 7 As shown, the flow guide ring plate 22 includes a plurality of flow guide plates 221, which are arranged circumferentially along a plurality of flow guide blades 21. The flow guide plates 221 are connected to the tails of adjacent flow guide blades 21. At least a portion of the flow guide plate 221 protrudes toward the side opposite to the flow guide blades 21, so that the flow guide plate 221 forms a recess between the tails of adjacent flow guide blades 21.

[0133] The guide plate 221 is connected to the tail of the adjacent guide vane 21, that is, the two ends of the guide plate 221 are respectively connected to the tail of two adjacent guide vanes 21. The multiple guide plates 221 are arranged circumferentially along the multiple guide vanes 21, so that the multiple guide plates 221 can form a guide ring plate 22 disposed on the periphery of the multiple guide vanes 21, thereby driving the gas to form a second airflow.

[0134] At least a portion of the guide plate 221 protrudes towards the side opposite to the guide vane 21, creating a recess between the tails of adjacent guide vanes 21. This reduces the impact and friction between the airflow and the guide plate 14, thereby lowering noise. Multiple guide plates 221 form a guide ring 22, which can be a roughly wavy annular structure. After gas is drawn in from the inlet side of the impeller structure 20, it is guided by the guide ring 22 to form a second airflow. As the impeller structure 20 rotates, the second airflow forms a wind wall, which smoothly merges with the first airflow. The merged airflow flows along or approximately along the axial direction of the impeller structure 20, reducing the impact of the outlet airflow of the impeller structure 20 on the duct wall 104 and lowering noise.

[0135] It should be noted that the specific position of the guide plate 221 protruding towards the side away from the guide vane 21 is not limited. For example, the middle part of the guide plate 221 protrudes towards the side away from the guide vane 21 so that the guide plate 221 forms a depression between the tails of two adjacent guide vanes 21.

[0136] It should be noted that, as Figure 6 As shown, B1 indicates the tail of the guide vane 21, B2 indicates the top of the guide vane 21, B3 indicates the leading edge of the guide vane 21, B4 indicates the trailing edge of the guide vane 21, and B5 indicates the flow of gas from the inlet side of the wind turbine structure 20 to the leading edge of the guide vane 21. The tail of the guide vane 21 can be understood as the position of the guide vane 21 near the inlet side of the wind turbine structure 20. The top of the guide vane 21 can be understood as the position of the guide vane 21 away from the inlet side of the wind turbine structure 20. The leading edge of the guide vane 21 can be understood as the edge that first contacts the gas during the rotation of the guide vane 21. The trailing edge of the guide vane 21 can be understood as the edge where the airflow leaves the guide vane 21 during its rotation. Under the rotation of the guide vane 21, the gas entering the inlet side of the wind turbine structure 20 flows to the leading edge of the guide vane 21.

[0137] In some embodiments, such as Figures 5 to 7 As shown, the guide vane 221 extends outward at an angle relative to the axis of the wind turbine structure 20. The distance between the guide vane 221 and the axis of the wind turbine structure 20 increases along the direction from the leading edge to the trailing edge of the guide vane 21.

[0138] The guide vane 221 extends outward at an angle relative to the axis of the wind turbine structure 20, specifically, as shown in... Figure 7As shown, relative to the axis of the wind turbine structure 20, the guide plate 221 extends obliquely from the central region to the edge region of the wind turbine structure 20. Along the direction from the leading edge to the trailing edge of the guide blade 21, the distance between the guide plate 221 and the axis of the wind turbine structure 20 increases. That is, along the direction gradually away from the air inlet side of the wind turbine structure 20, the guide ring plate 22 is generally formed into an expanding structure. This allows the second airflow formed by the guide ring plate 22 to converge with the first airflow, forming a converging airflow that flows along or approximately along the axis of the wind turbine structure 20. This reduces the impact of the outlet airflow of the wind turbine structure 20 with the duct wall 104, thereby reducing noise.

[0139] In one possible implementation, such as Figure 6 and Figure 7 As shown, the leading edge of the guide vane 21 is arc-shaped. Along the direction from the tail to the top of the guide vane 21, the leading edge of the guide vane 21 is close to the central region of the wind turbine structure 20.

[0140] Specifically, the leading edge of the guide vane 21 is an arc shape that bulges toward the central region of the wind turbine structure 20. Furthermore, along the direction from the tail to the top of the guide vane 21, the leading edge of the guide vane 21 gets closer and closer to the central region of the wind turbine structure 20, making the leading edge of the guide vane 21 streamlined.

[0141] Gas enters the impeller structure 20 from the inlet side and flows to the leading edge of the guide vanes 21. Because the leading edge of the guide vanes 21 is arc-shaped and gets closer and closer to the center of the impeller structure 20, the gas can flow more evenly across the various areas of the leading edge of the guide vanes 21. This reduces the formation of excessively high or low local negative pressure in the center of the impeller structure 20, improving gas utilization and reducing noise. Furthermore, when the gas flows into the airflow channel between two adjacent guide vanes 21, the more even distribution of gas across the leading edge of the guide vanes 21 results in a more uniform gas velocity within the airflow channel, reducing vortices caused by uneven gas velocity. When applied to air purifiers, this improves the overall purification efficiency and reduces operating noise.

[0142] In some embodiments, such as Figures 5 to 7 As shown, the wind turbine structure 20 also includes an impeller cover 23 and a second hub 24. The impeller cover 23 is connected to one end of the guide ring plate 22 near the leading edge of the guide vanes 21. The second hub 24 is connected to the top of the plurality of guide vanes 21. The trailing edges of the plurality of guide vanes 21 extend beyond the outer edge of the second hub 24.

[0143] The impeller cover 23 can serve as the gas intake section of the wind turbine structure 20, allowing gas to enter the wind turbine structure 20 through the impeller cover 23. The impeller cover 23 is connected to one end of the guide ring plate 22 near the leading edge of the guide blade 21, so that the gas entering the wind turbine structure 20 through the impeller cover 23 flows smoothly to the guide ring plate 22.

[0144] The second hub 24 is connected to the top of multiple guide vanes 21. That is, the second hub 24 and the impeller cover 23 are located on opposite sides of the multiple guide vanes 21, which facilitates the connection between the second hub 24 and the motor and saves installation space. When the motor drives the wind turbine structure 20 to rotate, it allows the gas to smoothly enter the wind turbine structure 20 from the side of the impeller cover 23.

[0145] The rotation of the second hub 24 drives the rotation of multiple guide vanes 21, achieving synchronous rotation between the second hub 24 and the guide vanes 21. For example, the second hub 24 can be connected to the drive shaft of a motor, and the motor drives the second hub 24 to rotate, thereby driving the multiple guide vanes 21 to rotate synchronously.

[0146] The trailing edges of multiple guide vanes 21 extend out of the outer edge of the second hub 24. In other words, along the radial direction of the impeller structure 20, the trailing edge of the guide vanes 21 extends out of the second hub 24, which can increase the air outlet area to a certain extent and help the airflow to flow smoothly out from the air outlet side of the impeller structure 20, thereby improving the air supply efficiency.

[0147] It should be noted that the shape of the second hub 24 is not limited; for example, the second hub 24 can be a disc-shaped structure. In application, the second hub 24 can be set perpendicular to or nearly perpendicular to the axis of the wind turbine structure 20.

[0148] Combination Figures 8 to 10 As shown, a second aspect of this utility model provides an air guiding assembly 30. The air guiding assembly 30 includes air guiding blades 31, and a plurality of air guiding blades 31 are arranged at intervals. Along the axial direction of the air guiding assembly 30, the width of the side of the air guiding blades 31 near the air inlet end of the air guiding assembly 30 is different from the width of the side away from the air inlet end of the air guiding assembly 30.

[0149] By arranging multiple guide vanes 31 at intervals, an airflow channel can be formed between two adjacent guide vanes 31, providing a flow path for the gas.

[0150] The width of the guide vane 31 near the air inlet end of the air guide assembly 30 is different from the width of the side facing away from the air inlet end of the air guide assembly 30. That is, the width of the guide vane 31 near the air inlet end of the air guide assembly 30 can be greater than or less than the width of the side facing away from the air inlet end of the air guide assembly 30; in other words, the guide vane 31 can be a structure with a variable width. By making the width of the guide vane 31 near the air inlet end of the air guide assembly 30 different from the width of the side facing away from the air inlet end of the air guide assembly 30, airflow can be regulated, reducing eddies or resistance generated at the guide vane 31 and making the airflow within the air guide assembly 30 smoother.

[0151] In one possible implementation, combining Figures 8 to 10 As shown, the air guide blade 31 includes a clearance portion 32, which is close to the air inlet end of the air guide assembly 30 and is located on the side of the air guide blade 31 facing the axis of the air guide assembly 30. The clearance portion 32 is formed by the edge of the air guide blade 31 being recessed in a direction away from the axis of the air guide assembly 30.

[0152] The guide vane 31 has a recessed portion 32 near the air inlet of the guide assembly 30. The recessed portion 32 is located on the side of the guide vane 31 facing the axis of the guide assembly 30. It is formed by a recess from the edge of the guide vane 31 in a direction away from the axis of the guide assembly 30. This recessed portion 32 provides sufficient space for the rotation of the blades 11 of the wind turbine assembly 10 when the guide assembly 30 is positioned on the air outlet side of the wind turbine assembly 10, preventing interference between the rotation of the blades 11 and the guide vane 31. The recessed portion 32 also provides sufficient space for gas flow, making the airflow from the wind turbine assembly 10 flow more smoothly to the air inlet of the guide assembly 30, reducing eddies or resistance generated at the guide vane 31.

[0153] It should be noted that the shape of the edge of the guide vane 31 at the air-blocking section 32 is not limited. For example, it can be arc-shaped or streamlined, which can reduce airflow resistance and reduce turbulence.

[0154] In one possible implementation, the guide vane 31 is streamlined.

[0155] In some embodiments, such as Figure 10 As shown, the air guide blades 31 are inclined relative to the axis of the air guide assembly 30.

[0156] like Figure 10 As shown, the dashed line L5 is used to indicate the axis of the air guide assembly 30. By tilting the air guide blades 31 relative to the axis of the air guide assembly 30, the impact force of the airflow at the air inlet of the air guide assembly 30 on the air guide blades 31 can be dispersed, reducing noise.

[0157] In some embodiments, such as Figure 10 As shown, the angle between the tangent of the guide vane 31 near the air inlet end of the guide assembly 30 and the axis of the guide assembly 30 is β1. The angle between the tangent of the guide vane 31 near the air outlet end of the guide assembly 30 and the axis of the guide assembly 30 is β2. Wherein, β1 > β2.

[0158] like Figure 10 As shown in the figure, the dashed line L6 is used to indicate the tangent of the air guide blade 31 near the air inlet end of the air guide assembly 30, and the dashed line L7 is used to indicate the tangent of the air guide blade 31 near the air outlet end of the air guide assembly 30.

[0159] By making an angle β1 between the tangent of the guide vane 31 near the air inlet end of the guide assembly 30 and the axis of the guide assembly 30, the air inlet direction of the guide assembly 30 can be made substantially parallel to the tangent of the guide vane 31 near the air inlet end of the guide assembly 30. When the guide assembly 30 is located on the air outlet side of the impeller assembly 10, the tangent of the guide vane 31 near the air inlet end of the guide assembly 30 can be made substantially parallel to the air outlet direction of the impeller assembly 10, thereby reducing wind resistance.

[0160] By making an angle β2 between the tangent of the air guide blade 31 near the air outlet end of the air guide assembly 30 and the axis of the air guide assembly 30, the air outlet direction of the air guide assembly 30 can be made basically parallel to the final air outlet direction of the whole machine (e.g., an air purifier), thereby improving work efficiency.

[0161] By increasing β1 > β2, gas flow resistance is reduced, thereby improving the overall efficiency of the machine (e.g., an air purifier).

[0162] In some embodiments, 40°≤β1≤70°; 0°≤β2≤30°, thereby reducing gas flow resistance and improving the overall efficiency of the machine (e.g., an air purifier).

[0163] In one possible implementation, β1 is 40°, 45°, 50°, 55°, 60°, 65°, 70°, or other angle values ​​between 40° and 70°.

[0164] In one possible implementation, β2 is 0°, 5°, 10°, 15°, 20°, 25°, 30°, or other angular values ​​between 0° and 30°.

[0165] In some embodiments, such as Figure 9 and 10 As shown, the thickness of the edge of the air guide blade 31 near the air inlet end of the air guide assembly 30 is less than the thickness of the main body of the air guide blade 31.

[0166] like Figure 9As shown in the figure, C1 is used to indicate the edge of the air guide blade 31 near the air inlet end of the air guide assembly 30, and C2 is used to indicate the main body of the air guide blade 31. The main body of the air guide blade 31 can be understood as the area of ​​the air guide blade 31 other than its edge near the air inlet end of the air guide assembly 30.

[0167] The thickness of the edge of the guide vane 31 near the air inlet end of the air guide assembly 30 is less than the thickness of the main body of the guide vane 31. That is, the edge of the guide vane 31 near the air inlet end of the air guide assembly 30 is relatively thin, so as to form a sharper edge structure, reduce the resistance when the airflow flows through the guide vane 31, and can better cut and guide the airflow. Furthermore, the relatively thicker main body of the guide vane 31 enhances the control capability of the guide vane 31 over the airflow.

[0168] In some embodiments, such as Figure 8 and Figure 9 As shown, the air guiding assembly 30 also includes an inner ring body 33 and an outer ring body 34 surrounding the outer side of the inner ring body 33. Multiple air guiding blades 31 are spaced apart between the inner ring body 33 and the outer ring body 34, so that adjacent air guiding blades 31 define an air guiding channel. The side of the air guiding blade 31 closest to the air inlet end of the air guiding assembly 30 protrudes from the inner ring body 33.

[0169] The outer ring 34 surrounds the inner ring 33, providing installation space for multiple guide vanes 31. These guide vanes 31 are spaced apart between the inner ring 33 and the outer ring 34, forming a unified structure that improves structural stability. Furthermore, the spaced arrangement of the guide vanes 31 allows adjacent vanes to define airflow channels, providing a path for gas flow.

[0170] By having the air guide blade 31 protrude from the inner ring 33 on the side near the air inlet end of the air guide assembly 30, the air guide blade 31 can divert the airflow at the air inlet end of the air guide assembly 30 and guide the airflow along the air guide blade 31, thereby reducing noise.

[0171] For example, when there is a high-pressure airflow zone 13 at the air inlet end of the air guide assembly 30, the air guide blade 31 protrudes from the inner ring body 33 on the side near the air inlet end of the air guide assembly 30, so that the air guide blade 31 can extend smoothly to the high-pressure airflow zone 13 to divert the airflow in the high-pressure airflow zone 13 and reduce the noise of gas flow.

[0172] In some embodiments, the air guide assembly 30 further includes a wind turbine assembly 10. The wind turbine assembly 10 includes blades 11 and is used to form and transport airflow. The wind turbine assembly 10 is located near the air inlet end of the air guide assembly 30. Along the axial direction of the air guide assembly 30, the lowest point of the air guide blade 31 is lower than the highest point of the blade 11. It is understood that the axial direction of the air guide assembly 30 can be the same as the direction of its axis, which will not be elaborated further below.

[0173] It should be noted that the air guiding assembly 30 may or may not include the wind turbine assembly 10. In some embodiments, the wind turbine assembly 10 may be one structure within the air guiding assembly 30. In some embodiments, the wind turbine assembly 10 and the air guiding assembly 30 may also be two relatively independent structures. When the wind turbine assembly 10 and the air guiding assembly 30 are two relatively independent structures, they can cooperate to form an airflow regulating assembly 50 as described below.

[0174] When the air guide assembly 30 includes the impeller assembly 10, the impeller assembly 10 is used to form and transport airflow. That is, the impeller assembly 10 accelerates, pressurizes, and directionally adjusts the gas to form airflow, and transports the airflow to the air guide blades 31.

[0175] The wind turbine assembly 10 is located near the air inlet of the air guide assembly 30, so that the airflow output by the wind turbine assembly 10 flows to the air guide blades 31. The airflow output by the wind turbine assembly 10 is diverted and guided by the air guide blades 31, reducing the direct impact of the airflow on the duct wall 104 during the flow process, thereby reducing energy loss and noise.

[0176] like Figure 13 As shown, the dashed line L8 can be used to indicate the axis of the air guide assembly 30. Along the axis of the air guide assembly 30, the lowest point of the air guide blade 31 is lower than the highest point of the blade 11. That is, the lowest point of the air guide blade 31 can extend to the air outlet side of the impeller assembly 10, so as to divert the air outlet of the impeller assembly 10 through the air guide blade 31, making the airflow more orderly, improving the stability of the airflow, and reducing noise.

[0177] For example, when the blades 11 of the wind turbine assembly 10 rotate, a high-pressure airflow zone 13 is formed around the blades 11. The high-pressure airflow zone 13 may be located in the outer peripheral area of ​​the blades 11 near the guide vanes 31. The high-pressure airflow zone 13 is prone to turbulence, generating significant airflow noise, which affects the performance of the equipment and the user experience. By making the lowest point of the guide vanes 31 lower than the highest point of the blades 11, the guide vanes 31 extend to the high-pressure airflow zone 13 of the wind turbine assembly 10, diverting the airflow within the high-pressure airflow zone 13, making the airflow more orderly, improving airflow stability, and reducing noise.

[0178] Furthermore, the impeller assembly 10 guides the airflow axially and directs the airflow from the impeller assembly 10 to the guide vanes 31. The guide vanes 31 divert and guide the airflow. Through the synergistic effect of the impeller assembly 10 and the guide vanes 31, the degree of airflow turbulence is reduced, the energy loss and noise caused by airflow impacting the duct wall 104 and turbulence are reduced, and the flow efficiency of airflow inside the equipment (e.g., air handling equipment 100) is improved, which helps to improve the overall performance of the equipment.

[0179] It is understood that the wind turbine assembly 10 may include multiple blades 11, and the air guide assembly 30 may include multiple air guide blades 31. Along the axial direction of the air guide assembly 30, the lowest point of the air guide blade 31 is lower than the highest point of the blade 11. In some embodiments, this may mean that the lowest point of multiple air guide blades 31 is lower than the highest point of any one blade 11. In some embodiments, the lowest point of the air guide blade 31 being lower than the highest point of the blade 11 along the axial direction of the air guide assembly 30 may mean that the lowest point of multiple air guide blades 31 is lower than the highest point of the blade 11 closest to it, so that the air guide blades 31 can divert and guide the airflow.

[0180] In some embodiments, combined with Figure 13 As shown, in the axial section of the air guide assembly 30, the height difference in the axial direction between the lowest point of the air guide blade 31 and the highest point of its adjacent blade 11 is H1. The projected length of the blade 11 in the axial direction is H2. Wherein, 10%≤H1 / H2≤50%.

[0181] The air guide assembly 30 is cut along its axial direction to obtain its axial cross section. Figure 13 This can also be used to illustrate the axial cross-section of the air guide assembly 30. In the axial cross-section of the air guide assembly 30, the height difference in the axial direction between the lowest point of the air guide blade 31 and the highest point of its adjacent blade 11 is H1, and the projected length of the blade 11 in the axial direction is H2. When the value of H1 / H2 is small, the downward depth of the air guide blade 31 is small, and it cannot fully play its role in diverting and guiding the airflow. When the value of H1 / H2 is large, the downward depth of the air guide blade 31 is too large, and the air guide blade 31 directly diverts the airflow generated and transported by the blade 11, affecting the pressure-holding capacity of the wind turbine assembly 10. By achieving 10%≤H1 / H2≤50%, both stable airflow transport by the wind turbine assembly 10 and the diversion and guidance of the airflow by the air guide blade 31 can be achieved. The air guide blade 31 can fully penetrate into the high-pressure zone 13 of the airflow in the wind turbine assembly 10, making the airflow more orderly, improving airflow stability, and reducing noise.

[0182] In one possible implementation, H1 / H2 is 10%, 20%, 30%, 40%, 50%, or other percentage values ​​between 10% and 50%.

[0183] In some embodiments, the air guide assembly 30 further includes a motor bracket 35. The motor bracket 35 is disposed on the inner ring 33.

[0184] The motor bracket 35 is installed by setting it on the inner ring 33, which saves installation space.

[0185] Specifically, the motor bracket 35 can be set in the middle of the inner ring 33, and multiple air guide blades 31 are arranged around the motor bracket 35, which helps to make the multiple air guide blades 31 evenly distributed in the air duct 101.

[0186] It should be understood that the aforementioned air guide assembly 30 can be used in air handling equipment.

[0187] Combination Figure 11 , Figure 12 and Figure 17 As shown, a third aspect of this utility model provides an air handling device 100, including an air outlet grille 40. The air outlet grille 40 includes grille blades 41, and a plurality of grille blades 41 are arranged at intervals. The grille blades 41 include a first air guide portion 413 and a second air guide portion 411. The first air guide portion 413 is farther from the center of the air outlet grille 40 than the second air guide portion 411. The first air guide portion 413 is used to guide at least a portion of the airflow in a first direction, and the second air guide portion 411 is used to guide at least a portion of the airflow in a second direction, wherein the first direction is at least partially different from the second direction.

[0188] Specifically, the first air guide 413 may have a different torsion direction than the second air guide 411, or the first air guide 413 may have a different structure than the second air guide 411, or the first air guide 413 may have a different material than the second air guide 411, so that the first air guide 413 and the second air guide 411 have different air guiding directions.

[0189] By making the first air guide 413 and the second air guide 411 have different air guiding directions, the airflow discharged from the air outlet grille 40 can have multiple (at least two, which will not be described in detail below) different airflow directions. The airflows with multiple different airflow directions can intersect, guide, push or influence each other, thereby guiding the airflow to a greater distance and improving the uniformity and coverage of the airflow discharged by the air handling equipment 100.

[0190] In some alternative embodiments, the air outlet grille 40 includes grille blades 41, with a plurality of grille blades 41 arranged at intervals. Each grille blade 41 includes a first guide portion 413 and a second guide portion 411. The first guide portion 413 is farther from the center of the air outlet grille 40 than the second guide portion 411. The first guide portion 413 is used to guide at least a portion of the airflow in a first direction, and the second guide portion 411 is used to guide at least a portion of the airflow in a second direction, wherein the first direction is closer to the horizontal direction than the second direction.

[0191] Specifically, the center of the air outlet grille 40 can refer to the area near the center of the air outlet grille 40, such as the area near the center of mass, center of rotation, axis, center of gravity or geometric center of the air outlet grille 40, which will not be elaborated further below.

[0192] Specifically, the first air guide 413 is used to guide at least a portion of the airflow in a first direction, and the second air guide 411 is used to guide at least a portion of the airflow in a second direction, wherein the second direction may be a direction close to the vertical. The first direction being closer to the horizontal direction than the second direction can mean that the first direction is further away from the vertical direction than the second direction; that is, the first air guide 413 is used to guide at least a portion of the airflow in a non-vertical direction, causing the airflow to flow out at an angle relative to the horizontal plane (or, the mounting surface of the air outlet grille 40, which will not be described further below). The second air guide 411, compared to the first air guide 413, causes the airflow to flow out in a direction close to the vertical. Figure 18 As shown, the first air guide 413 is used to allow at least a portion of the airflow (first airflow 500) to flow out in an inclined direction, and the second air guide 411 is used to allow at least a portion of the airflow (second airflow 600) to flow out in a nearly vertical direction. That is, the airflow flowing out from the air outlet grille 40 can simultaneously include the first airflow 500 and the second airflow 600. By allowing the airflow flowing out from the air outlet grille 40 to include the second airflow 600 in a nearly vertical direction and the first airflow 500 in an inclined direction, the airflow flowing out from the air outlet grille 40 can flow out in a farther and wider direction, thereby making the airflow flowing out from the air outlet grille 40 closer to natural wind, and reducing the wind noise generated by the airflow flowing out from the air outlet grille 40.

[0193] In some alternative implementations, such as Figure 11 , Figure 12 and Figure 18 As shown, the second air guide 411 is used to guide at least part of the airflow in a near-vertical direction, and the first air guide 413 is used to guide at least part of the airflow in an inclined direction, the angle between the inclined direction and the horizontal plane is θ, where 0≤θ<90°.

[0194] Specifically, the second air guide 411 is used to guide at least a portion of the airflow in a near-vertical direction, such as... Figure 18The second airflow 600 in the middle, the first air guide 413 is used to guide at least part of the airflow in an inclined direction, the angle between the inclined direction and the horizontal plane is θ, where 0≤θ<90°, as shown in the example. Figure 18 The first airflow is 500.

[0195] By making the airflow from the air outlet grille 40 include a second airflow 600 in a near-vertical direction and a first airflow 500 in an inclined direction, the airflow from the air outlet grille 40 can flow in a farther and wider direction, thereby making the airflow from the air outlet grille 40 closer to natural wind, and reducing the wind noise generated by the airflow from the air outlet grille 40.

[0196] In some alternative embodiments, the grille blades 41 include a torsion structure, wherein the degree of torsion of the first guide section 413 is greater than that of the second guide section 411. It is understood that the degree of torsion is used to characterize the degree of deflection of the first guide section 413 and the second guide section 411 relative to the vertical direction. Specifically, a greater degree of torsion in the first guide section 413 compared to the second guide section 411 can mean that the extension direction of the first guide section 413 is further away from the vertical direction than the extension direction of the second guide section 411, thus the first guide section 413 is used to deflect at least a portion of the airflow relative to the vertical direction. When the degree of torsion in the second guide section 411 is smaller than that in the first guide section 413, the second guide section 411 can guide at least a portion of the airflow towards a direction closer to the vertical.

[0197] In the above embodiment, by making the airflow from the air outlet grille 40 include airflow in a near vertical direction and airflow in an inclined direction, the airflow from the air outlet grille 40 can flow out in a farther and wider direction, thereby making the airflow from the air outlet grille 40 closer to natural wind, and reducing the wind noise generated by the airflow from the air outlet grille 40.

[0198] In some optional embodiments, the first air guide 413 and the second air guide 411 are connected. The end of the first air guide 413 away from the second air guide 411 has a first torsion angle λ1 relative to the vertical direction, and the end of the second air guide 411 away from the first air guide 413 has a second torsion angle λ2 relative to the vertical direction, wherein λ1 > λ2, and the absolute value of the difference between λ1 and λ2 is less than a first difference threshold.

[0199] Specifically, such as Figure 15As shown, λ1 can be the angle between the tangent at at least one point on the surface of the first air guide 413 away from the second air guide 411 and the axis of the air outlet grille 40. Similarly, λ2 can be the angle between the tangent at at least one point on the surface of the second air guide 411 away from the first air guide 413 and the axis of the air outlet grille 40. It should be understood that the aforementioned surface at one end can be the surface of the grille blade 41 away from the impeller assembly 10, or it can be the surface of the air outlet side of the grille blade 41. Wherein, λ1 > λ2 can cause the first air guide 413 to guide at least a portion of the airflow to deflect in a direction deviating from the vertical direction (i.e., closer to the horizontal direction) compared to the second air guide 411, and the second air guide 411 is used to deflect at least a portion of the airflow in a direction closer to the vertical direction compared to the first air guide 413. The absolute value of the difference between λ1 and λ2 is less than the first difference threshold, which can limit the difference in the degree of torsion between the first air guide 413 and the second air guide 411. In particular, it can reduce the torsional difference between the first air guide 413 and the second air guide 411 at the connection, improve the structural stability of the two at the connection, and reduce the difficulty of the forming process of the grille blade 41. The first difference threshold can be determined experimentally.

[0200] In the above embodiment, by using λ1 > λ2, the airflow from the air outlet grille 40 can include airflow that is close to the vertical direction and airflow that is deviates from the vertical direction, so that the airflow from the air outlet grille 40 can flow out in a farther and wider direction, thereby making the airflow from the air outlet grille 40 closer to the natural wind, and reducing the wind noise generated by the airflow from the air outlet grille 40.

[0201] In some alternative embodiments, the grille blade 41 further includes a connecting portion 412, wherein the first air guide portion 413 and the second air guide portion 411 are connected to each other at the connecting portion 412, wherein, in the extending direction of the grille blade 41, the distance between the end of the first air guide portion 413 facing away from the second air guide portion 411 and the connecting portion 412 is L, and L is less than or equal to a first distance threshold.

[0202] Specifically, the first air guide 413 and the second air guide 411 are connected to each other through the connecting part 412, which can enhance the structural stability of the grille blade 41. By making the distance between the end of the first air guide 413 away from the second air guide 411 and the connecting part 412 in the extension direction of the grille blade 41 L, where L is less than or equal to a first distance threshold, it can be ensured that the second air guide 411 has a certain air guiding capacity, so that at least part of the airflow flows in the vertical direction, thereby allowing this part of the airflow to interact with the inclined airflow guided by the first air guide 413. As a result, the airflow flowing out of the air outlet grille 40 can flow in a farther and wider direction, making the airflow flowing out of the air outlet grille 40 closer to natural wind, and reducing the wind noise generated by the airflow flowing out of the air outlet grille 40.

[0203] In some alternative implementations, two adjacent first air guides 413 define a first air outlet area, and two adjacent second air guides 411 define a second air outlet area, wherein the first air outlet area is larger than the second air outlet area.

[0204] Specifically, a first air outlet area is defined between two adjacent first air guide sections 413 (e.g., the gap between two adjacent first air guide sections 413 defines the first air outlet area), and a second air outlet area is defined between two adjacent second air guide sections 411 (e.g., the gap between two adjacent second air guide sections 411 defines the second air outlet area). The area of ​​the first air outlet area is called the first air outlet area, and the area of ​​the second air outlet area is called the second air outlet area. The first air outlet area is larger than the second air outlet area.

[0205] In the above embodiment, by making the first air outlet area larger than the second air outlet area, more airflow can be guided to flow in a direction deviating from the vertical (i.e., the inclined direction). The airflow flowing out of the air outlet grille 40 includes more airflow flowing deviating from the vertical direction, as well as airflow flowing at least partially in the vertical direction, so that the airflow flowing out of the air outlet grille 40 can flow in a farther and wider direction, the airflow flowing out of the air outlet grille 40 is closer to natural wind, and the wind noise generated by the airflow flowing out of the air outlet grille 40 can be reduced.

[0206] In some alternative embodiments, two adjacent first air guides 413 define a first air outlet area, and two adjacent second air guides 411 define a second air outlet area. When air passes through the air outlet grille 40, the airflow velocity in the first air outlet area is greater than the airflow velocity in the second air outlet area.

[0207] Specifically, the gap between two adjacent first air guide sections 413 can be defined as a first air outlet area for airflow to pass through, and the gap between two adjacent second air guide sections 411 can be defined as a second air outlet area for airflow to pass through. Combined Figure 17 During the use of the air handling equipment 100, the air is guided to the air outlet grille 40 by the fan assembly 10. When the air passes through the air outlet grille 40, the airflow velocity in the first air outlet area is greater than the airflow velocity in the second air outlet area.

[0208] It is understood that in some alternative implementations, by having the first air guide 413 and the second air guide 411 have different torsion angles, the airflow velocity in the first air outlet area can be greater than that in the second air outlet area.

[0209] In the above embodiment, by making the airflow velocity in the first air outlet area greater than that in the second air outlet area, according to Bernoulli's principle, the pressure in the first air outlet area is less than that in the second air outlet area. The relatively slow airflow and the relatively fast airflow (as well as airflows of different pressures) converge together, enabling the air handling equipment 100 to push the airflow to a greater distance, improving the uniformity and coverage of the airflow, and reducing the noise of the air supply.

[0210] In some alternative embodiments, two adjacent first air guides 413 define a first air outlet area, and two adjacent second air guides 411 define a second air outlet area. When air passes through the air outlet grille 40, the airflow velocity in the first air outlet area is less than the airflow velocity in the second air outlet area.

[0211] It is understood that in some alternative implementations, by having the first air guide 413 and the second air guide 411 have different torsion angles, the airflow velocity in the first air outlet area can be made to be less than the airflow velocity in the second air outlet area.

[0212] Specifically, the gap between two adjacent first air guide sections 413 can be defined as a first air outlet area for airflow to pass through, and the gap between two adjacent second air guide sections 411 can be defined as a second air outlet area for airflow to pass through. Combined Figure 17 During the use of the air handling equipment 100, the air is guided to the air outlet grille 40 by the fan assembly 10. When the air passes through the air outlet grille 40, the airflow velocity in the first air outlet area is less than the airflow velocity in the second air outlet area.

[0213] In the above embodiment, by making the airflow velocity in the first air outlet area less than that in the second air outlet area, the relatively slower airflow and the relatively faster airflow converge, enabling the air handling equipment 100 to push the airflow to a greater distance, improving the uniformity and coverage of the airflow, and reducing the noise of the air supply.

[0214] In some alternative embodiments, the spacing between two adjacent grille blades 41 near the center of the air outlet grille 40 is greater than the spacing away from the center of the air outlet grille 40. It is understood that the center of the air outlet grille 40 can refer to the area near the center of the air outlet grille 40, such as the area near the center of mass, rotation center, or geometric center of the air outlet grille 40. Further details will not be elaborated upon below.

[0215] Multiple grille blades 41 are arranged at intervals, so that two adjacent grille blades 41 can define the air outlet channel and provide an air outlet path for the flow of gas.

[0216] The distance between two adjacent grille blades 41 near the center of the outlet grille 40 is greater than the distance away from the center. According to Bernoulli's principle, the airflow velocity is relatively slow when passing between the two adjacent grille blades 41 near the center of the outlet grille 40, and relatively fast when passing between the two adjacent grille blades 41 away from the center of the outlet grille 40. This causes the relatively slow and relatively fast airflows to converge when passing through the outlet grille 40, pushing the airflow a greater distance, improving the uniformity and coverage of the airflow, and reducing air supply noise.

[0217] In one possible implementation, combining Figure 11 and Figure 12 As shown, the width of the grille blade 41 near the center of the air outlet grille 40 is smaller than the width of the grille blade 41 away from the center of the air outlet grille 40. That is, the width of the grille blade 41 near the center of the air outlet grille 40 is relatively small, while the width of the grille blade 41 away from the center of the air outlet grille 40 is relatively large. In other words, the width of the grille blade 41 varies along the radial direction of the air outlet grille 40.

[0218] As the airflow passes through the air outlet grille 40, the width of the grille blades 41 varies, which can break up the vortex, regulate the airflow distribution, produce an effect similar to a gentle, broad natural breeze, and reduce airflow noise.

[0219] In some embodiments, such as Figure 11 and Figure 12 As shown, the grille blade 41 includes a first air guide portion 413, a connecting portion 412, and a second air guide portion 411. The second air guide portion 411 is located near the center of the air outlet grille 40. The connecting portion 412 includes a first end and a second end, with the first end of the connecting portion 412 connected to one end of the second air guide portion 411. The first air guide portion 413 is connected to the second end of the connecting portion 412. At least a portion of the width of the second air guide portion 411 is smaller than at least a portion of the width of the first air guide portion 413. The width of the connecting portion 412 increases along the direction from the first end to the second end.

[0220] Specifically, the first air guide portion 413, the connecting portion 412, and the second air guide portion 411 can be sequentially connected to form the entire grille blade 41. The width of at least a portion of the second air guide portion 411 is smaller than the width of at least a portion of the first air guide portion 413, that is, the second air guide portion 411 is closer to the center of the air outlet grille 40, and the first air guide portion 413 is farther away from the center of the air outlet grille 40, so that the width of at least a portion of the grille blade 41 on the side closer to the center of the air outlet grille 40 is smaller than the width of at least a portion on the side farther away from the center of the air outlet grille 40.

[0221] The width of at least one region of the second air guide 411 (e.g., the width of the middle region of the second air guide 411) is denoted as the width of region 1. The width of at least one region of the first air guide 413 (e.g., the width of the middle region of the second air guide 411) is denoted as the width of region 2. It can be understood that the width of at least a portion of the second air guide 411 being less than the width of at least a portion of the first air guide 413 can mean that the width of region 1 is less than the width of region 2.

[0222] Along the direction from the first end to the second end, the width of the connecting portion 412 increases, enabling a smooth transition between the first air guide portion 413 and the second air guide portion 411. Specifically, by shortening the length of the connecting portion 412 and increasing the range of width variation of the connecting portion 412, the width difference between the first air guide portion 413 and the second air guide portion 411 can be increased, thereby optimizing the formation of an airflow effect similar to a gentle, expansive natural breeze.

[0223] In one possible implementation, such as Figure 11 and Figure 12 As shown, along the direction from the first end to the second end, the width of the first air guide 413 increases, the width of the connecting part 412 increases, and the width of the second air guide 411 increases.

[0224] Specifically, along the direction from the first end to the second end, the width of the first air guide portion 413, the connecting portion 412, and the second air guide portion 411 of the grille blade 41 increases. That is, along the direction from the first end to the second end, the width of the grille blade 41 increases in stages, which improves the effect of decomposing eddies, reduces airflow noise, makes the airflow flowing out of the air outlet grille 40 closer to natural wind, and improves comfort.

[0225] In some embodiments, such as Figure 12 As shown, in adjacent grille blades 41, the spacing of at least a portion of the gap between adjacent second air guides 411 is greater than the spacing of at least a portion of the gap between adjacent first air guides 413.

[0226] like Figure 12As shown, 'a' indicates the spacing of at least a portion of the gap between adjacent second air guide sections 411 (or, it can be the width of the at least a portion of the gap between the second air guide sections 411), and 'b' indicates the spacing of at least a portion of the gap between adjacent first air guide sections 413 (or, it can be the width of the at least a portion of the gap between the first air guide sections 413). Among two adjacent grille blades 41, the spacing of at least a portion of the gap between adjacent second air guide sections 411 is greater than the spacing of at least a portion of the gap between adjacent first air guide sections 413, i.e., a > b. In other words, among two adjacent grille blades 41, the spacing of at least a portion of the area between adjacent second air guide sections 411 is relatively large, and the spacing of at least a portion of the area between adjacent first air guide sections 413 is relatively small. According to Bernoulli's principle, the airflow velocity is relatively slow when flowing through at least a portion of the area between two second air guide sections 411, and relatively fast when flowing through at least a portion of the area between two first air guide sections 413. When the airflow passes through the air outlet grille 40, the relatively slow-moving airflow and the relatively fast-moving airflow converge, pushing the airflow to a greater distance and improving the uniformity and coverage of the airflow.

[0227] In some embodiments, combined with Figure 11 , Figure 12 and Figure 15 As shown, the grille blades 41 are inclined relative to the axis of the air outlet grille 40.

[0228] By tilting the grille blades 41 relative to the axis of the air outlet grille 40, the air outlet area can be increased, the air outlet direction can be optimized, and the airflow from the air outlet grille 40 can be closer to natural wind, thus improving comfort.

[0229] In some embodiments, combined with Figure 11 , Figure 12 and Figure 15 As shown, along the air outlet direction of the air outlet grille 40, the angle between the tangent at at least one point on the surface of the grille blade 41 and the axis of the air outlet grille 40 is α. Wherein, 0°<α≤30°.

[0230] The surface of the grille blade 41 can be the surface of the grille blade 41 facing away from the wind turbine assembly 10. Combined Figure 15As shown, the dashed line Q3 indicates the tangent at a point on the surface of the grille blade 41, and the dashed line L10 indicates the axis of the air outlet grille 40. By setting 0° < α ≤ 30°, the grille blade 41 can be tilted relative to the axis of the air outlet grille 40, further optimizing the air outlet direction, increasing the air outlet area, and making the airflow from the air outlet grille 40 closer to natural wind, thus improving comfort. Furthermore, by setting 0° < α ≤ 30°, the grille blade 41 can be tilted relative to the axis of the air outlet grille 40, allowing the airflow from the air guide assembly 30 in the above embodiment to be output from the air outlet grille 40 with less obstruction, further optimizing the air outlet direction, increasing the air outlet area, and making the airflow from the air outlet grille 40 closer to natural wind, thus improving comfort.

[0231] In some embodiments, such as Figure 11 As shown, the air outlet grille 40 also includes a support plate 42 and a support ring 43. The support ring 43 surrounds the support plate 42. Multiple grille blades 41 are spaced apart between the support plate 42 and the support ring 43, with adjacent grille blades 41 defining the air outlet channel. Along the direction in which the grille blades 41 extend from the support plate 42 to the support ring 43, the width of the second air guide portion 411 first decreases and then increases.

[0232] A support ring 43 surrounds the support plate 42, providing installation space for multiple grille blades 41. The multiple grille blades 41 are spaced apart between the support plate 42 and the support ring 43, forming an integrated air outlet grille 40 with the support plate 42 and support ring 43, thus improving stability. By first decreasing and then increasing the width of the second air guide section 411 along the direction extending from the support plate 42 to the support ring 43, the width at the connection between the second air guide section 411 and the support plate 42 can be increased, thereby strengthening the mechanical connection at the connection point and improving the structural stability of the air handling equipment 100.

[0233] In one possible implementation, such as Figure 11 As shown, the grille blade 41 is a curved structure extending radially along the air outlet grille 40 to guide the airflow direction.

[0234] In some possible implementations, such as Figure 15 As shown, the grille blade 41 includes a first end near the middle side of the air outlet grille 40 and a second end away from the middle side of the air outlet grille 40. In the longitudinal section of the air outlet grille 40, the distance between the highest point of the grille blade 41 and the first end is greater than the distance between the highest point of the grille blade 41 and the second end.

[0235] Specifically, in the above embodiment, by making the distance between the highest point of the grille blade 41 and the first end in the longitudinal section of the air outlet grille 40 greater than the distance between the highest point of the grille blade 41 and the second end, the airflow discharged from the air outlet grille 40 can be made more uniform, thereby reducing the noise of the air handling equipment 100.

[0236] In some possible implementations, such as Figure 15 As shown, in the longitudinal section of the air outlet grille 40, the highest point of the grille blade 41 is higher than the highest point of the support plate 42, and the highest point of the grille blade is higher than the highest point of the support ring 43.

[0237] Specifically, in the above embodiment, by making the highest point of the grille blade 41 higher than the highest point of the support plate 42 and the highest point of the grille blade higher than the highest point of the support ring 43 in the longitudinal section of the air outlet grille 40, the guiding effect of the grille blade 41 on the airflow can be enhanced, making the airflow discharged from the air outlet grille 40 more uniform and reducing the noise of the air handling equipment 100.

[0238] It should be understood that the aforementioned air outlet grille 40 can be applied to the air handling unit 100. For example, as Figure 17 As shown, the air outlet grille 40 can be installed on the air outlet side of the air handling equipment 100.

[0239] Combination Figures 1 to 4 , Figures 8 to 10 as well as Figure 13 As shown, this embodiment of the invention also provides an airflow regulating component 50. The airflow regulating component 50 includes a wind turbine assembly 10 and an air guide assembly 30. The wind turbine assembly 10 includes blades 11 and is used to form and transport airflow. The air guide assembly 30 is disposed on the air outlet side of the wind turbine assembly 10 and includes air guide blades 31. Along the axial direction of the airflow regulating component 50, the lowest point of the air guide blade 31 is lower than the highest point of the blade 11.

[0240] The impeller assembly 10 accelerates, pressurizes, and directs the gas to form an airflow, which is then guided to the airflow guide assembly 30. The airflow guide assembly 30, located on the outlet side of the impeller assembly 10, directs the airflow from the impeller assembly 10 to the airflow guide assembly 30. The airflow guide assembly 30 also diverts and guides the airflow from the impeller assembly 10, reducing direct impact between the airflow and the duct wall 104 during its flow, thus lowering energy loss and noise.

[0241] like Figure 13As shown, the dashed line L8 can also be used to indicate the axis of the airflow regulating assembly 50. Along the axis of the airflow regulating assembly 50, the lowest point of the guide vane 31 is lower than the highest point of the blade 11. That is, the lowest point of the guide vane 31 can extend to the air outlet side of the impeller assembly 10, so as to divert the air outlet of the impeller assembly 10 through the guide vane 31, making the airflow more orderly, improving the stability of the airflow, and reducing noise.

[0242] For example, when the blades 11 of the wind turbine assembly 10 rotate, a high-pressure airflow zone 13 is formed around the blades 11. The high-pressure airflow zone 13 may be located in the outer peripheral area of ​​the blades 11 near the air guide assembly 30. The high-pressure airflow zone 13 is prone to turbulence, generating significant airflow noise, which affects the performance of the equipment and the user experience. By making the lowest point of the air guide blade 31 lower than the highest point of the blade 11, the air guide blade 31 extends to the high-pressure airflow zone 13 of the wind turbine assembly 10, diverting the airflow within the high-pressure airflow zone 13, making the airflow more orderly, improving the stability of the airflow, and reducing noise.

[0243] Furthermore, the impeller assembly 10 guides the airflow axially and causes the air outlet of the impeller assembly 10 to flow into the air guide assembly 30. The air guide assembly 30 diverts and guides the airflow. That is, through the synergistic effect of the impeller assembly 10 and the air guide assembly 30, the degree of airflow turbulence is reduced, the energy loss and noise caused by the airflow hitting the duct wall 104 and turbulence are reduced, and the flow efficiency of the airflow inside the equipment (e.g., the air handling equipment 100) is improved, which helps to improve the overall performance of the equipment.

[0244] It is understood that the wind turbine assembly 10 may include multiple blades 11, and the air guide assembly 30 may include multiple air guide blades 31. Along the axial direction of the airflow regulating assembly 50, the lowest point of the air guide blade 31 is lower than the highest point of the blade 11. In some embodiments, this may mean that the lowest point of multiple air guide blades 31 is lower than the highest point of any one blade 11. In some embodiments, "the lowest point of the air guide blade 31 is lower than the highest point of the blade 11" along the axial direction of the airflow regulating assembly 50 may mean that the lowest point of multiple air guide blades 31 is lower than the highest point of the blade 11 closest to it, so that the air guide blades 31 can divert and guide the airflow.

[0245] In some embodiments, such as Figure 13 As shown, in the axial section of the airflow regulating assembly 50, the height difference in the axial direction between the lowest point of the guide vane 31 and the highest point of its adjacent blade 11 is H1, and the projected length of the blade 11 in the axial direction is H2. Wherein, 10%≤H1 / H2≤50%.

[0246] The airflow regulating assembly 50 is cut along its axial direction to obtain an axial cross-section of the airflow regulating assembly 50. For example... Figure 13 As shown, on the axial cross section of the airflow regulating component 50, the height difference between the lowest point of the guide vane 31 and the highest point of its adjacent vane 11 in the axial direction is H1, and the projected length of the vane 11 in the axial direction is H2. By 10%≤H1 / H2≤50%, the wind turbine component 10 can stably deliver airflow, and the guide component 30 can also divert and guide the airflow. The guide vane 31 can fully penetrate into the high-pressure zone 13 of the airflow in the wind turbine component 10, making the airflow more orderly, improving the stability of the airflow, and reducing noise.

[0247] In one possible implementation, H1 / H2 is 10%, 20%, 30%, 40%, 50%, or other percentage values ​​between 10% and 50%.

[0248] In some embodiments, such as Figure 13 As shown, the guide vane 31 includes a clearance portion 32. The clearance portion 32 is close to the wind turbine assembly 10 and is located on the side of the guide vane 31 facing the wind turbine assembly 10. The clearance portion 32 is formed by the edge of the guide vane 31 being recessed in the direction away from the wind turbine assembly 10.

[0249] When the air guide assembly 30 is located on the air outlet side of the wind turbine assembly 10, the clearance portion 32 provides sufficient space for the rotation of the blades 11 of the wind turbine assembly 10, ensuring that the rotation of the blades 11 does not interfere with the air guide blades 31. The clearance portion 32 also provides sufficient space for gas flow, making the airflow output from the wind turbine assembly 10 flow more smoothly to the air inlet end of the air guide assembly 30, and reducing the generation of eddies or resistance in the airflow at the air guide blades 31.

[0250] In some embodiments, such as Figure 9 and Figure 13 As shown, the thickness of the edge of the air guide blade 31 near the air inlet end of the air guide assembly 30 is less than the thickness of the main body of the air guide blade 31.

[0251] The air inlet of the air guide assembly 30 is close to the air outlet of the impeller assembly 10. The thickness of the edge of the air guide blade 31 near the air inlet of the air guide assembly 30 is less than the thickness of the main body of the air guide blade 31. This makes the edge of the air guide blade 31 near the air outlet of the impeller assembly 10 relatively thin, forming a sharper edge structure. This reduces the resistance of the airflow from the impeller assembly 10 to the air guide blade 31, allowing for better cutting and guiding of the airflow. Furthermore, the relatively thicker main body of the air guide blade 31 enhances its ability to control the airflow.

[0252] It should be noted that other beneficial effects of the wind turbine assembly 10 and the wind guide assembly 30 can be found in the foregoing embodiments of this utility model, and will not be repeated here.

[0253] Combination Figures 1 to 4 as well as Figure 11 , Figure 12 and Figure 14 As shown, this embodiment of the invention also provides an airflow regulating component 50. The airflow regulating component 50 includes a wind turbine assembly 10 as described in any of the previous embodiments and an air outlet grille 40 as described in any of the previous embodiments. The wind turbine assembly 10 is used to form and transport airflow. The air outlet grille 40 is disposed on the air outlet side of the wind turbine assembly 10 and is used to regulate the airflow distribution.

[0254] The air outlet grille 40 is located on the air outlet side of the impeller assembly 10. This means that the airflow output from the impeller assembly 10 can flow towards the air outlet grille 40, allowing it to exit through the grille. The impeller assembly 10 accelerates, pressurizes, and directs the airflow, causing it to flow along or approximately along the axial direction of the impeller assembly 10 and exit from its outlet side, providing a relatively orderly airflow input to the air outlet grille 40. The air outlet grille 40 diffuses and guides the airflow, adjusting its distribution to make it more uniform, closer to natural wind, and increasing the delivery distance.

[0255] Through the synergistic effect of the impeller assembly 10 and the air outlet grille 40, the uniformity and coverage of the airflow output by the air outlet grille 40 are improved, which can more efficiently distribute the airflow to the usage environment and improve the user experience.

[0256] For example, when the airflow regulating component 50, which consists of the impeller assembly 10 and the air outlet grille 40, is applied to an air purifier, the air purification effect of the air purifier is improved by the acceleration, pressurization and direction adjustment of the gas by the impeller assembly 10, and the diffusion and guidance of the air outlet grille 40 on the air outlet of the impeller assembly 10. This allows the purified air to be efficiently distributed to the usage environment, thereby enhancing the user experience.

[0257] The technical effects of the wind turbine assembly 10 and the air outlet grille 40 are described in the above embodiments of this utility model and will not be repeated here.

[0258] like Figures 8 to 12 as well as Figure 15 As shown, this embodiment of the invention also provides an airflow regulating component 50. The airflow regulating component 50 includes a guide component 30 as described in any of the previous embodiments and an outlet grille 40 as described in any of the previous embodiments. The guide component 30 is used to divert and guide the airflow. The outlet grille 40 is disposed at the outlet end of the guide component 30 and is used to regulate the airflow distribution.

[0259] The air outlet grille 40 is located on the air outlet side of the air guide assembly 30. That is, the gas output by the air guide assembly 30 flows to the air outlet grille 40, and is diffused and guided by the air outlet grille 40 before being sent out, thereby adjusting the air outlet distribution.

[0260] Through the synergistic effect of the air guide assembly 30 and the air outlet grille 40, the output airflow is made more stable and uniform. Specifically, the air guide assembly 30 optimizes (divides and guides) the airflow entering it, reducing turbulence and noise, making the airflow delivered to the air outlet grille 40 more stable. On this basis, the air outlet grille 40 performs secondary guidance and diffusion of the airflow, further improving the uniformity and coverage of the airflow, making the airflow discharged from the airflow regulating assembly 50 more stable and uniform, reducing airflow turbulence near the air outlet of the device (e.g., an air purifier), improving the air quality of the device, and reducing noise caused by unstable airflow.

[0261] The technical effects of the air guide assembly 30 and the air outlet grille 40 are as described in the above embodiments of this utility model, and will not be repeated here.

[0262] like Figures 1 to 12 as well as Figure 16 As shown, this embodiment of the invention also provides an airflow regulating component 50. The airflow regulating component 50 includes a wind turbine assembly 10 as described in any of the previous embodiments, an air guide assembly 30 as described in any of the previous embodiments, and an air outlet grille 40 as described in any of the previous embodiments. The wind turbine assembly 10 is used to form and transport airflow. The air guide assembly 30 is disposed on the air outlet side of the wind turbine assembly 10 and is used to divert and guide the airflow. The air outlet grille 40 is disposed at the air outlet end of the air guide assembly 30 and is used to adjust the airflow distribution.

[0263] Specifically, the air guide component 30 is disposed on the air outlet side of the impeller assembly 10, and the air outlet grille 40 is disposed on the air outlet side of the air guide component 30. That is to say, the impeller assembly 10, the air guide component 30 and the air outlet grille 40 are arranged in sequence, so that the gas output by the impeller assembly 10 is first diverted and guided by the air guide component 30, and then the air outlet grille 40 adjusts the air outlet distribution, diffuses the air and softens the wind before flowing out.

[0264] Through the coordinated action of the impeller assembly 10, the air guide assembly 30, and the outlet grille 40, the impact of airflow on the duct wall 104 is minimized, reducing energy loss and noise, improving airflow efficiency, and enhancing airflow uniformity and coverage. This significantly improves the overall performance of the equipment (e.g., an air purifier), providing users with a more efficient, quieter, and more comfortable air purification experience. Specifically, the impeller assembly 10 accelerates, pressurizes, and adjusts the direction of the gas to form an airflow output. The air guide assembly 30 diverts and reduces noise in the turbulent flow within the high-pressure zone 13 formed by the operation of the impeller assembly 10. The outlet grille 40 diffuses and guides the airflow optimized by the impeller assembly 10 and the air guide assembly 30. Throughout the entire process from gas entering the equipment to its exit, the airflow state is optimized to minimize the impact of airflow on the duct wall 104, reduce energy loss and noise, and improve airflow efficiency.

[0265] The technical effects of the impeller assembly 10, the air guide assembly 30, and the air outlet grille 40 are described in the above embodiments of this utility model and will not be repeated here.

[0266] like Figures 1 to 12 as well as Figure 17 The present invention also provides an air handling device 100. The air handling device 100 includes an air duct 101 and a fan assembly 10 as described in any of the previous embodiments. The fan assembly 10 is disposed within the air duct 101, and the air inlet side of the fan assembly 10 is connected to the air inlet of the air duct 101. The fan assembly 10 includes blades 11.

[0267] The impeller assembly 10 is disposed within the air duct 101, with its air inlet side connected to the air inlet of the air duct 101. This allows the impeller assembly 10 to draw air from the air inlet of the air duct 101 into its air inlet side when it rotates. The impeller assembly 10 accelerates, pressurizes, and directionally adjusts the gas before delivering it into the air duct 101, thus achieving gas flow within the air handling equipment 100. Furthermore, by using the impeller assembly 10 to deliver the gas, the impact between the exhaust airflow from the impeller assembly 10 and the air duct wall 104 of the air duct 101 is reduced, thereby decreasing the operating noise of the air handling equipment 100 and improving its performance and user experience.

[0268] Among them, such as Figure 17 As shown, the air handling equipment 100 also includes an intake grille 105. The intake grille 105 is disposed upstream of the air inlet of the air duct 101, so that the air outside the air duct 101 flows through the intake grille 105 and enters the air inlet of the air duct 101, and the intake grille 105 achieves uniform airflow dispersion.

[0269] It should be noted that the air duct 101 has an air duct wall 104. The air duct 101 can be a channel for airflow formed by the air duct wall 104. The inner wall of the air duct 101 can be streamlined to reduce frictional resistance with the airflow. The air duct 101 has an air inlet and an air outlet. Gas outside the air duct 101 can enter the air duct 101 through the air inlet and flow out of the air duct 101 through the air outlet. The impeller assembly 10 is set inside the air duct 101. Under the action of the impeller assembly 10, the gas outside the air duct 101 is drawn into the air duct 101 through the air inlet and sent out through the air outlet of the air duct 101. Through the flow of air in the air duct 101, the air handling equipment 100 can process the air (e.g., purify the air).

[0270] The air handling unit 100 can be any one of an air purifier, humidifier, dehumidifier, air supply equipment, ventilation system, or bladeless air purification fan. The impeller assembly 10 can be a component used to drive airflow in equipment such as air purifiers, humidifiers, dehumidifiers, air supply equipment, ventilation systems, or bladeless air purification fans.

[0271] For example, when the air handling device 100 is an air purifier, the air purifier is equipped with a high-efficiency particulate air filter (True HEPA). True HEPA filters have greater air resistance, which affects the air intake and air purification efficiency. In this embodiment, the air purifier accelerates and pressurizes the gas through the impeller assembly 10 and guides the gas to flow in a preset direction to the impeller assembly 10, reducing the impact of airflow on the duct wall 104, reducing energy loss, optimizing the airflow distribution within the air purifier, and helping to improve the ventilation performance of the air purifier. That is, even when the air purifier is equipped with a True HEPA filter, it can still draw in sufficient air to achieve the purification effect of the air purifier.

[0272] In some embodiments, such as Figures 1 to 3 As shown, the blade 11 includes a first blade portion 111 and a second blade portion 112. The first blade portion 111 is at least used to drive the gas entering the air intake side of the wind turbine assembly 10 through the air inlet of the air duct 101 to form an airflow. The second blade portion 112 is at least used to guide the flow direction of the airflow towards a preset direction of the wind turbine assembly 10, so that the airflow flows out through the air outlet side of the wind turbine assembly 10 into the air duct 101.

[0273] The impeller assembly 10 is disposed within the air duct 101. The first blade 111 drives gas through the air inlet of the air duct 101 into the air intake side of the impeller assembly 10, accelerating the gas flow and forming an airflow. The second blade 112 guides the airflow direction towards a preset direction of the impeller assembly 10, and directs the airflow from the air outlet side of the impeller assembly 10 into the air duct 101, reducing the impact between the outlet airflow of the impeller assembly 10 and the air duct wall 104 of the air duct 101, thereby reducing the noise of the air handling equipment 100 during operation.

[0274] Other technical effects of the wind turbine assembly 10 are described in the above embodiments of this utility model and will not be repeated here.

[0275] In some embodiments, such as Figures 8 to 10 As shown, the air handling unit 100 also includes an air guide assembly 30 as in any of the preceding embodiments. The air guide assembly 30 is disposed in the air duct 101 and located on the air outlet side of the impeller assembly 10. The air guide assembly 30 includes air guide blades 31, and along the axial direction of the air handling unit 100, the lowest point of the air guide blades 31 is lower than the highest point of the blades 11.

[0276] The air guide assembly 30 is disposed in the air duct 101 and is located on the air outlet side of the impeller assembly 10. That is, the airflow output by the impeller assembly 10 flows along the air duct 101 to the air guide assembly 30. Through the synergistic effect of the impeller assembly 10 and the air guide assembly 30, the direct impact of the airflow on the air duct wall 104 during the flow process is reduced, thereby reducing energy loss and noise, and improving the performance of the air handling equipment 100 and the user experience.

[0277] Along the axial direction of the air handling unit 100, the lowest point of the guide vane 31 is lower than the highest point of the blade 11. That is, the lowest point of the guide vane 31 can extend to the air outlet side of the impeller assembly 10, so as to divert the air outlet of the impeller assembly 10 through the guide vane 31, making the airflow more orderly, improving the stability of the airflow, and reducing noise.

[0278] like Figure 17 As shown, the dashed line L9 in the figure indicates the axis of the air handling unit 100. When the impeller assembly 10, the air guide assembly 30, and the air outlet grille 40 are installed in the air handling unit 100, the impeller assembly 10, the air guide assembly 30, and the air outlet grille 40 are coaxial or nearly coaxial. Therefore, Figure 17 The dashed line L9 in the diagram can also be used to indicate the axis of the wind turbine assembly 10, the air guide assembly 30, and the air outlet grille 40.

[0279] In some embodiments, such as Figure 17As shown, the wind guide blade 31 includes a clearance portion 32, which is close to the wind turbine assembly 10 and is located on the side of the wind guide blade 31 facing the wind turbine assembly 10. The clearance portion 32 is formed by the edge of the wind guide blade 31 being recessed in the direction away from the wind turbine assembly 10.

[0280] When the air guide assembly 30 is located on the air outlet side of the wind turbine assembly 10, the clearance portion 32 provides sufficient space for the rotation of the blades 11 of the wind turbine assembly 10, ensuring that the rotation of the blades 11 does not interfere with the air guide blades 31. The clearance portion 32 also provides sufficient space for gas flow, making the airflow output from the wind turbine assembly 10 flow more smoothly to the air inlet end of the air guide assembly 30, and reducing the generation of eddies or resistance in the airflow at the air guide blades 31.

[0281] In some embodiments, combined with Figure 13 and Figure 17 As shown, in the axial section of the air handling unit 100, the height difference in the axial direction between the lowest point of the guide vane 31 and the highest point of its adjacent vane 11 is H1, and the projected length of the vane 11 in the axial direction is H2. Wherein, 10%≤H1 / H2≤50%.

[0282] The air handling unit 100 is cut along its axial direction to obtain an axial section of the air handling unit 100. Combined with... Figure 13 and Figure 17 As shown, in the axial cross-section of the air handling unit 100, the height difference in the axial direction between the lowest point of the guide vane 31 and the highest point of its adjacent blade 11 is H1, and the projected length of the blade 11 in the axial direction is H2. When the value of H1 / H2 is small, the downward depth of the guide vane 31 is small, which cannot fully play the role of diverting and guiding the airflow. When the value of H1 / H2 is large, the downward depth of the guide vane 31 is too large, and the guide vane 31 directly guides away the airflow generated and transported by the blade 11, affecting the pressure holding capacity of the impeller assembly 10. By achieving 10%≤H1 / H2≤50%, both the impeller assembly 10 can stably transport airflow, and the guide assembly 30 can divert and guide the airflow, making the airflow more orderly, improving the stability of the airflow, and reducing noise.

[0283] In one possible implementation, H1 / H2 is 10%, 20%, 30%, 40%, 50%, or other percentage values ​​between 10% and 50%.

[0284] In some embodiments, such as Figure 11 , 12 As shown in Figures 1 and 17, the air handling equipment 100 also includes an air outlet grille 40 as in any of the preceding embodiments. The air outlet grille 40 is disposed at the air outlet of the air duct 101 and is used to adjust the airflow distribution at the air outlet of the air duct 101.

[0285] An air outlet grille 40 is installed at the air outlet of the air duct 101. The airflow flowing out of the air duct 101 passes through the air outlet grille 40 and then flows out of the air handling unit 100. The air outlet grille 40 diverts and softens the airflow at the air outlet of the air duct 101, adjusts the airflow distribution at the air outlet of the air duct 101, reduces airflow turbulence, lowers the exhaust noise of the air handling unit 100, and improves the user experience.

[0286] For example, such as Figure 17 As shown, the air handling unit 100 includes a fan assembly 10, an air guide assembly 30, and an air outlet grille 40. The fan assembly 10 is installed in the air duct 101, and the air inlet side of the fan assembly 10 is connected to the air inlet of the air duct 101. The guide blades 31 of the air guide assembly 30 extend into the high-pressure airflow zone 13 of the fan assembly 10. The air outlet grille 40 is disposed at the air outlet of the air duct 101. Figure 17 The dashed arrows in the diagram indicate the gas flow direction within the air handling unit 100. The impeller assembly 10, the air guide assembly 30, and the outlet grille 40 work together. The impeller assembly 10 accelerates, pressurizes, and directs the gas entering the air duct 101, before delivering it towards the air guide assembly 30. The guide vanes 31 of the air guide assembly 30 divert and guide the airflow in the high-pressure zone 13, reducing turbulence and noise. The airflow passing through the impeller assembly 10 and the air guide assembly 30 smoothly enters the outlet grille 40. The grille vanes 41 of the outlet grille 40 further distribute and guide the airflow, delivering the gas out of the air handling unit 100 in a uniform and stable state.

[0287] It is understood that the air handling equipment 100 has the beneficial effects of the impeller assembly 10, the air guide assembly 30 and the air outlet grille 40 of the foregoing embodiments of the present invention.

[0288] In some embodiments, such as Figure 11 and Figure 12 As shown, the air outlet grille 40 includes multiple grille blades 41. The distance between two adjacent grille blades 41 near the center of the air outlet grille 40 is greater than the distance away from the center of the air outlet grille 40.

[0289] According to Bernoulli's principle, the airflow velocity is relatively slow when passing between the middle sides of two adjacent grille blades 41 near the outlet grille 40. The airflow velocity is relatively fast when passing between the middle sides of two adjacent grille blades 41 away from the outlet grille 40. This causes the relatively slow and relatively fast airflows to converge when passing through the outlet grille 40, enabling the air handling unit 100 to push the airflow a greater distance, improving airflow uniformity and coverage, and reducing air supply noise.

[0290] In some embodiments, such as Figure 11 and Figure 12As shown, the width of the grille blade 41 on the axial side near the air duct 101 is smaller than the width on the axial side away from the air duct 101.

[0291] In the radial direction of the air duct 101, the grille blade 41 can be a blade with a variable width. Specifically, the width of the grille blade 41 on the side closer to the axis of the air duct 101 is smaller than the width on the side farther from the axis of the air duct 101. That is, the width of the grille blade 41 on the side closer to the axis of the air duct 101 is relatively narrow, and the width of the grille blade 41 on the side farther from the axis of the air duct 101 is relatively wide.

[0292] The airflow exiting the air outlet of the air duct 101 flows through the grille blades 41 of varying widths. Through the synergistic effect of different width positions, the distribution and guidance of the airflow are optimized. It can also decompose vortices and produce a gentle, expansive natural wind effect.

[0293] In some embodiments, such as Figure 12 As shown, the grille blade 41 includes a first air guide portion 411 and a second air guide portion 413. The first air guide portion 411 is located near the center of the air outlet grille 40. Among adjacent grille blades 41, the spacing between adjacent first air guide portions 411 is greater than the spacing between adjacent second air guide portions 413.

[0294] The spacing between adjacent first air guides 411 is greater than the spacing between adjacent second air guides 413, that is, the spacing between two adjacent first air guides 411 is relatively large, and the spacing between two adjacent second air guides 413 is relatively small.

[0295] The airflow exiting the air outlet of the air duct 101 achieves a lower velocity when passing between the two first air guide sections 411, and a higher velocity when passing between the two second air guide sections 413. The convergence of the higher-velocity airflow and the lower-velocity airflow propels the airflow a greater distance, thus increasing the coverage area of ​​the airflow output by the air handling unit 100.

[0296] In some embodiments, such as Figure 17 As shown, the air duct 101 includes a first flow section 1011 and a second flow section 1012. The first flow section 1011 includes an air inlet. The impeller assembly 10 is disposed within the first flow section 1011. The second flow section 1012 includes an air outlet. An air outlet grille 40 is disposed at the air outlet. An air guide assembly 30 is disposed between the first flow section 1011 and the second flow section 1012, wherein the air guide blades 31 are located within the air duct 101.

[0297] The first flow section 1011 includes an air inlet, through which gas outside the duct 101 can enter the first flow section 1011. The impeller assembly 10 is disposed within the first flow section 1011 to accelerate, pressurize, and directionally adjust the gas before sending the airflow into the first flow section 1011, thereby reducing the direct impact between the airflow and the duct wall 104 at the first flow section 1011, and thus reducing noise and energy loss.

[0298] The second flow section 1012 includes an air outlet, through which the airflow within the duct 101 flows out of the duct 101. An air outlet grille 40 is positioned at the air outlet of the second flow section 1012, that is, at the air outlet of the duct 101. The air outlet grille 40 softens the airflow exiting the second flow section 1012, making it more similar to natural wind.

[0299] The air guide assembly 30 is disposed between the first flow section 1011 and the second flow section 1012. The air guide blades 31 of the air guide assembly 30 are located within the air duct 101, that is, the air guide blades 31 are located within the air duct 101 between the first flow section 1011 and the second flow section 1012. After the impeller assembly 10 sends the airflow into the first flow section 1011, under the action of the impeller assembly 10, the airflow flows along the air duct 101 towards the second flow section 1012. During the process of the airflow towards the second flow section 1012, it is diverted and guided by the air guide assembly 30, reducing the impact of the airflow on the air duct wall 104 during the flow, reducing noise, and reducing energy loss.

[0300] Along the direction from the wind turbine assembly 10 to the air guide assembly 30, the distance between the duct wall 104 of the first flow passage 1011 and the axis of the wind turbine assembly 10 increases. By cooperating with the second blade portion 112, the airflow can be evenly distributed in the duct 101.

[0301] In some embodiments, such as Figure 17 As shown, the air handling unit 100 also includes a motor bracket 35, a motor assembly 102, and a control device 103. The motor assembly 102 is mounted on the motor bracket 35, and its drive end is connected to the impeller assembly 10. The control device 103 is mounted on the motor bracket 35 and connected to the motor assembly 102. The control device 103 controls the operation of the motor assembly 102 to drive the impeller assembly 10 to rotate.

[0302] The motor assembly 102 is mounted on the motor bracket 35. For example, the motor assembly 102 is fixed on the motor bracket 35 to achieve the installation of the motor assembly 102. The drive shaft of the motor assembly 102 is connected to the wind turbine assembly 10, which not only enables the drive shaft to rotate and drive the wind turbine assembly 10 to rotate, but also enables the installation of the wind turbine assembly 10.

[0303] The control device 103 is mounted on the motor bracket 35 to achieve installation and fixation of the control device 103. The control device 103 and the motor assembly 102 are mounted on the motor bracket 35, resulting in a compact structure and saving installation space. The control device 103 is connected to the motor assembly 102, enabling the control device 103 to control the operation of the motor assembly 102 to drive the fan wheel assembly 10 to rotate, thereby realizing the flow and guidance of airflow within the air duct 101.

[0304] The control device 103 may include an electrical control box and electronic components such as a controller, control circuit, and communication module disposed within the electrical control box. The electrical control box is fixed to the motor bracket 35. The motor assembly 102 can be controlled to operate via the controller.

[0305] A fourth aspect of this utility model provides a control method for an air handling device 100. The air handling device 100 includes a fan assembly 10. The control method includes: controlling the first blade portion 111 of the fan assembly 10 to rotate, thereby driving the flow of gas entering the air intake side of the fan assembly 10 to form an airflow. Controlling the second blade portion 112 of the fan assembly 10 to rotate, thereby guiding at least a portion of the airflow direction towards a preset direction of the fan assembly 10, so that the airflow output by the fan assembly 10 can flow to the air outlet of the air duct 101 where the fan assembly 10 is located.

[0306] By controlling the rotation of the first blade 111 of the wind turbine assembly 10, the gas entering the air intake side of the wind turbine assembly 10 is driven to flow, forming an airflow. The first blade 111 drives the gas flow, forming an airflow with a certain speed and pressure, thereby achieving initial pressurization and power accumulation.

[0307] By controlling the rotation of the second blade 112 of the impeller assembly 10, at least a portion of the airflow direction is guided towards a preset direction of the impeller assembly 10, adjusting the outlet direction of the impeller assembly 10, reducing the impact of the airflow delivered by the impeller assembly 10 on the duct wall 104, and reducing the operating noise of the air handling equipment 100. Furthermore, under the action of the impeller assembly 10, the airflow output by the impeller assembly 10 flows towards the outlet of the duct 101, thereby driving the airflow within the air handling equipment 100.

[0308] It should be noted that the subject executing the above control method may be a processing device or controller installed in the air handling equipment 100, or it may be a terminal device or cloud processor that is electrically or communicatively connected to the air handling equipment 100.

[0309] The first aspect of this utility model provides a fan wheel assembly for an air handling device.

[0310] Solution 1 of this utility model relates to a fan assembly for an air handling device, comprising:

[0311] Blades, a plurality of said blades are arranged at circumferential intervals along said wind turbine assembly to form airflow channels;

[0312] At least a portion of the blade is used to guide the airflow passing through the airflow channel toward a predetermined direction of the wind turbine assembly, the predetermined direction forming an angle K with the axis of the wind turbine assembly, wherein K is less than 90°.

[0313] Based on Solution 1 of this utility model, this utility model provides Solution 2, wherein at least one of the blades includes two regions forming an angle, wherein the region closer to the top of the blade in the two regions is used to guide the airflow in the preset direction.

[0314] Based on solution 2 of this utility model, this utility model provides solution 3, wherein the two regions forming the included angle include a first blade portion and a second blade portion, the first blade portion is closer to the tail of the blade than the second blade portion, and the second blade portion is closer to the top of the blade than the first blade portion;

[0315] Wherein, the second blade portion is twisted relative to the first blade portion, or...

[0316] Along the direction from the tail to the tip of the blade, the second blade portion is inclined towards the axis of the wind turbine assembly relative to the first blade portion, or...

[0317] The tilt angle of the second blade portion is greater than that of the first blade portion, or,

[0318] The angle between the tangent at the trailing edge of the blade and the axis of the wind turbine assembly is γ1, and the angle between the tangent at the tip of the trailing edge of the blade and the axis of the wind turbine assembly is γ2, wherein γ1 is less than γ2.

[0319] Based on solution 3 of this utility model, this utility model provides solution 4, which is characterized in that...

[0320] The first blade section includes a centrifugal section, which is at least used to drive gas from the central region of the wind turbine assembly to the edge region of the wind turbine assembly;

[0321] The second blade section includes an oblique flow section, which is at least used to guide the flow direction of the gas toward the preset direction.

[0322] Based on solution 3 of this utility model, this utility model provides solution 5, wherein the first blade portion and the second blade portion extend outward in an arc shape along the radial direction of the wind turbine assembly.

[0323] Based on solution 3 of this utility model, this utility model provides solution 6, which is characterized in that...

[0324] The second blade portion includes a twisted region near the trailing edge of the blade;

[0325] The torsion region is torsion toward the center region of the impeller relative to the direction from the leading edge to the trailing edge of the first blade.

[0326] Based on solution 3 of this utility model, this utility model provides solution 7, which is characterized in that...

[0327] In the axial cross-section of the blade, the first blade portion is formed as an arc-shaped cross-section, the arc-shaped cross-section protruding away from the preset direction; the second blade portion is formed as an inclined surface, along the direction from the tail to the top of the blade, the inclined surface is close to the preset direction.

[0328] Based on solution 7 of this utility model, this utility model provides solution 8, which is characterized in that...

[0329] The intersection line of the inclined plane near the axis of the wind turbine assembly forms an angle θ with the axis of the wind turbine assembly;

[0330] Among them, 45°≥θ≥10°.

[0331] Based on solution 3 of this utility model, this utility model provides solution 9, which is characterized in that...

[0332] Also includes:

[0333] Impeller cover, connected to the tail of the blade;

[0334] The blade also includes a blade connecting portion, which is connected to the side of the first blade portion opposite to the second blade portion;

[0335] The blade connecting portion extends to the inner wall of the impeller cover from the side opposite to the first blade portion.

[0336] Based on solution 1 of this utility model, this utility model provides solution 10, which is characterized in that...

[0337] The leading edge of the blade is arc-shaped;

[0338] Along the direction from the tail to the top of the blade, the leading edge of the blade is close to the central region of the wind turbine assembly.

[0339] Based on solution 1 of this utility model, this utility model provides solution 11, which is characterized in that...

[0340] Also includes:

[0341] A wind deflector is connected between the tails of adjacent blades and extends radially outward along the impeller assembly;

[0342] At least a portion of the air guide plate protrudes toward the side opposite to the blade, so that the air guide plate forms a recess between the tails of adjacent blades.

[0343] Based on solution 11 of this utility model, this utility model provides a solution 12, wherein solution 12 is characterized in that...

[0344] The number of air guide plates is multiple;

[0345] Multiple air guide plates are arranged circumferentially along the wind turbine assembly to form an air guide ring plate.

[0346] Based on solution 1 of this utility model, this utility model provides solution 13, which is characterized in that...

[0347] Also includes:

[0348] The first hub is disposed on top of the plurality of blades;

[0349] The trailing edges of a plurality of the blades extend beyond the outer edge of the first hub.

[0350] The second aspect of this utility model provides an air guide assembly.

[0351] Solution 14 of this utility model provides an air guiding component, comprising:

[0352] Wind guide vanes, with multiple wind guide vanes arranged at intervals;

[0353] Along the axial direction of the air guide assembly, the width of the side of the air guide blade near the air inlet end of the air guide assembly is different from the width of the side away from the air inlet end of the air guide assembly.

[0354] Based on solution 14 of this utility model, this utility model provides solution 15, wherein the air guide blade includes a clearance portion, the clearance portion is close to the air inlet end of the air guide assembly and is located on the side of the air guide blade facing the axis of the air guide assembly, and the clearance portion is formed by the edge of the air guide blade being recessed in a direction away from the axis of the air guide assembly.

[0355] Based on solution 14 of this utility model, this utility model provides a solution 16, wherein solution 16 is characterized in that...

[0356] The air guide blades are inclined relative to the axis of the air guide assembly.

[0357] Based on solution 14 of this utility model, this utility model provides a solution 17, wherein solution 17 is characterized in that...

[0358] The angle between the tangent of the air guide blade near the air inlet end of the air guide assembly and the axis of the air guide assembly is β1, and the angle between the tangent of the air guide blade near the air outlet end of the air guide assembly and the axis of the air guide assembly is β2.

[0359] Where β1 > β2.

[0360] Based on solution 17 of this utility model, this utility model provides a solution 18, wherein solution 18 is characterized in that...

[0361] 40°≤β1≤70°;

[0362] 0°≤β2≤30°.

[0363] Based on solution 14 of this utility model, this utility model provides a solution 19, which is characterized in that...

[0364] The thickness of the edge of the air guide blade near the air inlet side of the air guide assembly is less than the thickness of the main body of the air guide blade.

[0365] Based on solution 14 of this utility model, this utility model provides a solution 20, which is characterized in that...

[0366] Also includes:

[0367] Inner ring body;

[0368] An outer ring body is disposed outside the inner ring body, and a plurality of the guide vanes are arranged at intervals between the inner ring body and the outer ring body, so that the adjacent guide vanes define the air guiding channel.

[0369] The air guide blade protrudes from the inner ring body on the side near the air inlet end of the air guide assembly.

[0370] Based on any one of the solutions 14 to 20 of this utility model, this utility model provides a solution 21, which is characterized in that...

[0371] Also includes:

[0372] A wind turbine assembly, including blades, for forming and conveying airflow and located near the air inlet end of the wind guide assembly;

[0373] Along the axial direction of the air guide assembly, the lowest point of the air guide blade is lower than the highest point of the blade.

[0374] Based on solution 21 of this utility model, this utility model provides a solution 22, which is characterized in that...

[0375] On the axial section of the air guide assembly, the height difference between the lowest point of the air guide blade and the highest point of the adjacent blade in the axial direction is H1, and the projected length of the blade in the axial direction is H2.

[0376] Among them, 10%≤H1 / H2≤50%.

[0377] A third aspect of this utility model provides a control method for an air handling equipment.

[0378] Solution 23 of this utility model provides a control method for an air handling equipment, including:

[0379] The air handling equipment includes a fan assembly, and the control method includes:

[0380] The first blade of the wind turbine assembly is controlled to rotate, which drives the gas entering the air intake side of the wind turbine assembly to flow, forming an airflow;

[0381] The second blade of the wind turbine assembly is controlled to rotate, guiding at least a portion of the airflow direction toward a preset direction of the wind turbine assembly, so that the airflow output by the wind turbine assembly can flow toward the air outlet of the air duct where the wind turbine assembly is located. The preset direction forms an angle K with the axis of the wind turbine assembly, wherein K is less than 90°.

[0382] The third aspect of this utility model provides an air outlet grille.

[0383] Solution 24 of this utility model provides an air outlet grille, comprising:

[0384] Grille blades, with multiple grille blades arranged at intervals;

[0385] The grille blades include a first air guide section and a second air guide section. The first air guide section is farther from the center of the air outlet grille than the second air guide section. The first air guide section is used to guide at least a portion of the airflow in a first direction, and the second air guide section is used to guide at least a portion of the airflow in a second direction, wherein the first direction is at least partially different from the second direction.

[0386] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An air handling device comprising an air outlet grille, characterised in that, The air outlet grille includes: Grille blades, with multiple grille blades arranged at intervals; The grille blades include a first air guide section and a second air guide section. The first air guide section is farther from the center of the air outlet grille than the second air guide section. The first air guide section is used to guide at least a portion of the airflow in a first direction, and the second air guide section is used to guide at least a portion of the airflow in a second direction, wherein the first direction is at least partially different from the second direction.

2. The air treatment device of claim 1, wherein, The first direction is closer to the horizontal direction than the second direction.

3. The air treatment device of claim 1, wherein, The second air guide is used to guide at least a portion of the airflow in a near-vertical direction, and the first air guide is used to guide at least a portion of the airflow in an inclined direction, wherein the angle between the inclined direction and the horizontal plane is θ, where 0 ≤ θ < 90°.

4. The air treatment device of claim 1, wherein, The grille blades include a torsion structure, and the degree of torsion of the first air guide is greater than that of the second air guide.

5. The air treatment device of claim 4, wherein, The first air guide and the second air guide are connected. The end of the first air guide away from the second air guide has a first torsion angle λ1 relative to the vertical direction, and the end of the second air guide away from the first air guide has a second torsion angle λ2 relative to the vertical direction, wherein λ1 > λ2, and the absolute value of the difference between λ1 and λ2 is less than a first difference threshold.

6. The air treatment device of claim 5, wherein, The grille blade further includes a connecting portion, wherein the first air guide portion and the second air guide portion are connected to each other at the connecting portion, wherein, in the extension direction of the grille blade, the distance between the end of the first air guide portion away from the second air guide portion and the connecting portion is L, and the L is less than or equal to a first distance threshold.

7. The air treatment device of claim 1, wherein, Two adjacent first air guides define a first air outlet area, and two adjacent second air guides define a second air outlet area, wherein the first air outlet area is larger than the second air outlet area.

8. The air treatment device of claim 1, wherein, Two adjacent first air guides define a first air outlet area, and two adjacent second air guides define a second air outlet area. When air passes through the air outlet grille, the airflow velocity in the first air outlet area is greater than the airflow velocity in the second air outlet area, or the airflow velocity in the first air outlet area is less than the airflow velocity in the second air outlet area.

9. The air handling equipment according to claim 1, characterized in that, The grid blades include: The second air guide section is located near the center of the air outlet grille; The connecting part includes a first end and a second end, wherein the first end is connected to one end of the second air guide part; The first air guide is connected to the second end of the connecting part; Wherein, at least a portion of the width of the second air guide is less than at least a portion of the width of the first air guide; and the width of the connecting portion increases along the direction from the first end to the second end.

10. The air handling equipment according to claim 1, characterized in that, In adjacent grille blades, the spacing of at least a portion of the gap between adjacent second air guides is greater than the spacing of at least a portion of the gap between adjacent first air guides.

11. The air handling equipment according to claim 1, characterized in that, The grille blades are inclined relative to the axis of the air outlet grille; Along the air outlet direction of the air outlet grille, the angle between the tangent at at least one point on the surface of the grille blade and the axis of the air outlet grille is α, where 0°<α≤30°.

12. The air treatment device of claim 1, wherein, The air outlet grille also includes: A support disk and a support ring, the support ring surrounding the support disk; The plurality of grille blades are arranged at intervals between the support plate and the support ring, and adjacent grille blades define an air outlet channel; Along the direction in which the grille blades extend from the support disc to the support ring, the width of the second air guide first decreases and then increases.

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