Fairing and fan assembly

Abstract

The utility model discloses a fairing and a fan assembly, and belongs to the technical field of cooling fans, the fairing is provided with an axis, and the fairing comprises a plurality of ribs arranged at intervals in the first circumferential direction; the grid plate assembly comprises flow guide plates, the flow guide plates are arranged between every two adjacent ribs, and the flow guide plates are configured to be capable of rotating relative to the ribs so as to adjust the included angles between the flow guide plates and the axis; according to the fairing, the inclination angle of the grid plate assembly can be adjusted by arranging the grid plate assembly capable of rotating relative to the ribs, so that the airflow direction and the airflow speed are guided to be changed, turbulent flow and vortex caused by uneven airflow distribution are reduced, and the noise reduction effect of the fairing is improved.

Description

Technical Field

[0001] This application belongs to the field of heat dissipation fan technology, specifically relating to a shroud and fan assembly. Background Technology

[0002] As a type of fluid machinery widely used in energy engineering and other fields, fans often operate at high speeds or with multiple fans working simultaneously. This operating mode can cause serious noise pollution and affect people's comfort.

[0003] To reduce fan noise, a shroud is usually installed on the outside of the fan to reduce noise while ensuring the airflow is guided. However, current shrouds limit the direction of airflow rectification, which affects the noise reduction effect. Utility Model Content

[0004] This application provides a fairing designed to address the technical problem that current fairings restrict the direction of airflow rectification, thus affecting noise reduction performance; another objective of this application is to provide a fan assembly.

[0005] Technical solution: The fairing described in this application embodiment has an axis and includes:

[0006] Multiple ribs, the multiple ribs being arranged at intervals along a first circumferential direction;

[0007] A grille assembly includes a baffle plate disposed between two adjacent ribs, the baffle plate being configured to rotate relative to the ribs to adjust the angle between the baffle plate and the axis.

[0008] In some embodiments, the fairing further includes a plurality of ribs disposed on the ribs, the ribs having an extending direction intersecting the first circumferential direction, the guide plate being rotatably disposed on the ribs so that the guide plate rotates relative to the ribs through the ribs, the guide plate extending in a direction away from the ribs.

[0009] In some embodiments, the grid assembly further includes a snap-fit ​​portion having an opening and being fitted onto the rib, the guide plate being connected to the snap-fit ​​portion.

[0010] In some embodiments, the guide plate is provided on each side of the snap-fit ​​portion.

[0011] In some embodiments, the deflector is rotatably connected to the ribs on both sides thereof.

[0012] Accordingly, the fairing described in the embodiments of this application includes:

[0013] Multiple ribs are arranged at intervals along the axis, and the ribs extend along the first circumferential direction;

[0014] Multiple ribs are spaced around the reinforcing bar, and at least some of the ribs are slidably connected to the reinforcing bar.

[0015] In some embodiments, in the rib that is slidably connected to the reinforcing bar, the inner side of the rib is provided with a groove, and the reinforcing bar is inserted into the groove so that the rib slides relative to the reinforcing bar through the groove.

[0016] In some embodiments, the fairing includes a first rectifier port and a second rectifier port spaced apart along an axis;

[0017] In the ribs that are slidably connected to the reinforcing bars, a portion of the ribs are first radial ribs, which extend from the first rectifier port to the second rectifier port and are spaced apart from the second rectifier port;

[0018] Alternatively, some of the ribs may be second radial ribs, which extend from the second rectifier port toward the first rectifier port and are spaced apart from the first rectifier port.

[0019] In some embodiments, where some of the ribs are first radial ribs, the fairing further includes a first rectifier ring connected to the same end of the plurality of ribs and surrounding to form the first rectifier port, wherein the end of the first radial rib away from the first rectifier ring is disposed opposite to a rib, and the rib is an intermediate rib.

[0020] The first radial rib has a first slider at each end, and the first rectifier ring and the intermediate rib are respectively provided with a first guide groove. The first slider is inserted into the first guide groove.

[0021] In some embodiments, where some of the ribs are second radial ribs, the fairing further includes a second rectifier ring, which is connected to the other end of the plurality of ribs and surrounds to form the second rectifier port. The end of the second radial rib away from the second rectifier ring is disposed opposite to one of the ribs, and the rib is an intermediate rib.

[0022] The second radial rib has a second slider at each end, and the second rectifier ring and the intermediate rib are respectively provided with a second guide groove. The second slider is inserted into the second guide groove.

[0023] Accordingly, the fairing described in this application embodiment has an axis and includes:

[0024] Multiple ribs are arranged at intervals along the axis, and the ribs extend along the first circumferential direction;

[0025] Multiple ribs are spaced apart around the reinforcing bar, and at least some of the ribs are slidably connected to the reinforcing bar;

[0026] A grille assembly includes a baffle plate disposed between two adjacent ribs, the baffle plate being configured to rotate relative to the ribs to adjust the angle between the baffle plate and the axis.

[0027] In some embodiments, the slidably disposed ribs are alternately distributed with the grid assembly, and the ribs are provided with clearance grooves for the grid assembly to pass through and mounting ports communicating with the clearance grooves.

[0028] Accordingly, a wind turbine assembly described in this application embodiment includes:

[0029] Fan body;

[0030] A fan frame has two air outlets that are oppositely distributed along the axial direction, and the main body of the fan is disposed within the fan frame;

[0031] The aforementioned fairing is disposed over one of the air vents.

[0032] In some embodiments, the fan body includes a fan ring, and there is a top gap between the fan ring and the fan frame in a direction parallel to the axis.

[0033] The number of grid plate assemblies is set to multiple and arranged at intervals along the first circumferential direction, and the grid plate assemblies are arranged opposite to the top gap.

[0034] In some embodiments, the fan body includes fan blades;

[0035] The number of grid plate assemblies is set to a plurality, and they are arranged at intervals along the first circumferential direction. In a direction parallel to the axis, the plurality of grid plate assemblies and the fan blades have orthographic projections on the same plane, and the orthographic projections of the grid plate assemblies and the fan blades partially overlap.

[0036] Beneficial effects: The fairing of this application embodiment is equipped with a grid assembly that can rotate relative to the ribs to make the tilt angle of the grid assembly adjustable, so as to guide the change of airflow direction and airflow speed, reduce turbulence and eddies caused by uneven airflow distribution, thereby improving the noise reduction effect of the fairing; since the angle of the grid assembly is adjustable, the fairing can meet different operating conditions, which helps to improve the flexibility and adaptability of the fairing.

[0037] The wind turbine assembly of this application includes the above-described fairing, and therefore can have all the technical features and beneficial effects of the above-described fairing. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0039] Figure 1 This is a schematic diagram of the fairing structure provided in an embodiment of this application;

[0040] Figure 2 This is a schematic diagram of the grid assembly distribution of the fairing provided in an embodiment of this application;

[0041] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0042] Figure 4 This is a schematic diagram of the structure of the grid assembly provided in the embodiments of this application;

[0043] Figure 5 A schematic diagram of the rib structure provided in the embodiments of this application;

[0044] Figure 6 This is a schematic diagram of the structure of the first radial rib provided in an embodiment of this application;

[0045] Figure 7 This is a schematic diagram of the structure of the first slider and the first guide groove provided in an embodiment of this application;

[0046] Figure 8 This is a schematic diagram of the structure of the second radial rib provided in an embodiment of this application;

[0047] Figure 9 This is a schematic diagram of the structure of the second slider provided in an embodiment of this application;

[0048] Figure 10 for Figure 9 Enlarged view at point B in the middle;

[0049] Figure 11 This is a schematic diagram of the structure of the fairing and the main body of the fan provided in the embodiments of this application;

[0050] Figure 12 A schematic diagram showing the relative positions of the grid assembly and the fan blades provided in an embodiment of this application;

[0051] Reference numerals: 21221, Rib; 11, Intermediate rib; 2, Rib; 20, Slide groove; 21, First radial rib; 211, First slider; 22, Second radial rib; 221, Second slider; 23, Clearance groove; 24, Mounting port; 3, Grid plate assembly; 31, Snap-fit ​​part; 310, Opening; 311, First surface; 312, Second surface; 32, Guide plate; 4, First rectifier ring; 41, First guide groove; 5, Second rectifier ring; 51, Second guide groove; 6, Fan body; 60, Rotating shaft; 61, Fan blade; 62, Fan ring; 7, Fan frame; 100, Rectifier hole; 200, First rectifier port; 300, Second rectifier port. Detailed Implementation

[0052] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0053] In the description of this application, it should be understood that the terms "height," "thickness," "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, "a plurality of" means two or more, and "at least one" can mean one, two, or more, unless otherwise explicitly specified. In the description of this application, "vertical" means completely perpendicular to 90° or almost completely perpendicular, for example, an angle within the range of 85°-95° ​​is considered vertical.

[0054] Please combine them together Figure 1 , Figure 2 and Figure 3 The fairing of this application embodiment has an axis C and a plurality of rectifier holes 100. The plurality of rectifier holes 100 are distributed throughout the fairing. The fairing includes a plurality of ribs 2, which are arranged at intervals along a first circumferential direction, which is a path formed around the axis C.

[0055] The grille assembly 3 includes a guide plate 32 disposed between two adjacent ribs 2. The guide plate 32 is configured to rotate relative to the ribs 2 to adjust the angle between the guide plate 32 and the axis C. At least a portion of the guide plate 32 is located within the rectifier orifice 100. It is understood that the rotation of the guide plate 32 can be achieved by its direct rotatable connection with the ribs 2, or by the guide plate 32 achieving relative rotation with the ribs 2 through an intermediate structure connected to the ribs 2. That is, there is no direct connection between the guide plate 32 itself and the ribs 2.

[0056] The number of grid plate assemblies 3 can be one or more, and they can be set at different positions of the fairing to change the local airflow path and airflow speed of the fairing. For example, the guide plate 32 can be set in the inner or outer region of the fairing, or multiple guide plates 32 can be arranged in a circle around the first circumference, or they can be distributed throughout the fairing.

[0057] The deflector 32 has a 360° rotation range and can remain relatively fixed to the rib 2 at any position. This ensures that the deflector 32 only rotates when subjected to a certain degree of external force, thus maintaining its position. This effect can be achieved through friction during rotation, or by applying elastic or magnetic forces to the rotating structure of the deflector 32 to fix it in place. Rotating the deflector 32 changes its angle with the axis C, i.e., its tilt angle. This change alters the ventilation area of ​​the corresponding flow-rectifying orifice 100 and controls the airflow direction, helping to optimize the airflow path, reduce turbulence and energy loss, thereby improving the noise reduction effect of the fairing. Furthermore, the deflector 32's 360° rotation and ability to be fixed at any position allow it to flexibly adjust the airflow direction and speed according to different operating conditions and requirements, improving the adaptability of the fairing.

[0058] Please combine them together Figure 2 and Figure 3 In some embodiments, the fairing further includes a plurality of ribs 1 disposed on the ribs 2. The ribs 1 have an extending direction that intersects with the first circumferential direction at an angle of 85° to 95°, preferably 90°. The ribs 1 and the ribs 2 interweave to form a flow-rectifying hole 100. The guide plate 32 is rotatably disposed on the ribs 1 so that the guide plate 32 rotates relative to the ribs 2 via the ribs 1. This relative rotation can be understood as the guide plate 32 rotating relative to the ribs 2 because the position of the ribs 2 corresponding to the guide plate 32 is fixed, while the guide plate 32 can rotate around the ribs 1.

[0059] The deflector 32 extends away from the rib 1 to give it a certain width, enhancing its blocking and deflecting effect on the airflow and helping to change the airflow direction or distribute the flow rate. In the thickness direction of the deflector 32, its thickness is smaller than the minimum dimension of the rib 1 to reduce the space occupied by the deflector 32 and lower its resistance to the airflow. When the cross-section of the rib 1 is circular, its minimum dimension is its diameter, and the thickness of the deflector 32 is smaller than the diameter of the rib 1. When the cross-section of the rib 1 is rectangular, its minimum dimension is the length of its wide side, and in this case, the thickness of the deflector 32 is smaller than the width of the rib 1.

[0060] When there are multiple baffle assemblies 3, each baffle 32 can be set on a rib 1. In this case, the rib 1 is arc-shaped and connected between two adjacent ribs 2. Alternatively, multiple baffles 32 can be set on an annular rib 1, and the annular rib 1 can be connected to each rib 2 at the same time. Therefore, the rib 1 can be a complete annular structure or it can be spliced ​​from multiple independent segments into an annular structure.

[0061] Please refer to Figure 4 In some embodiments, the grid assembly 3 further includes a snap-fit ​​portion 31, which has an opening 310 and is fitted onto the rib 1. The guide plate 32 is connected to the snap-fit ​​portion 31. Specifically, the snap-fit ​​portion 31 is a hollow cylindrical structure fitted onto the rib 1. The snap-fit ​​portion 31 includes a first surface 311 and a second surface 312 disposed opposite to each other. The opening 310 extends from the first surface 311 to the second surface 312, and the opening 310 communicates with the interior of the snap-fit ​​portion 31. The width of the opening 310 is smaller than the diameter of the rib 1.

[0062] The snap-fit ​​part 31 is fitted onto the rib 1 through the opening 310. To facilitate the widening of the opening 310 during installation, in this embodiment, the snap-fit ​​part 31 is made of an elastic material. The elastic force is used to fasten the snap-fit ​​part 31 to the rib 1, thereby fixing the snap-fit ​​part 31 in place. When it is necessary to rotate the guide plate 32, a certain force is applied to the guide plate 32 to overcome the elastic force of the snap-fit ​​part 31. The adjustment is convenient and flexible, and the installation and removal are quick, facilitating the real-time adjustment of the installation position of the guide plate 32 during actual use. In other embodiments, the snap-fit ​​part 31 can also be fixed by magnetic force. For example, the snap-fit ​​part 31 is made of a magnetic material, the width of the opening 310 is not less than the diameter of the rib 1, and at least a part of the rib 1 is made of iron. The snap-fit ​​part 31 and the rib 1 attract each other, which can both fix the two together and allow the snap-fit ​​part 31 to rotate freely around the rib 1.

[0063] To facilitate the rotation of the snap-fit ​​part 31, the cross-section of the rib 1 with the snap-fit ​​part 31 is preferably circular, and the remaining ribs 1 can be circular or polygonal; or, the cross-section of the rib 1 at a section corresponding to the snap-fit ​​part 31 is circular, and the rest of the rib 1 can be circular or polygonal.

[0064] Furthermore, when the rib 1 is an annular or arc-shaped structure, the opening 310 can change accordingly under the compression between the inner wall of the snap-fit ​​part 31 and the rib 1 when the snap-fit ​​part 31 rotates; and in order to reduce the deformation of the outer surface of the snap-fit ​​part 31, the snap-fit ​​part 31 can be made of plastic or rubber material that has both elasticity and flexibility. When compression occurs, the rib 1 can be embedded in the snap-fit ​​part 31 to maintain the shape of the outer surface of the snap-fit ​​part 31 and reduce the impact on the shape of the guide plate 32.

[0065] In some other embodiments, the guide plate 32 can also be sleeved on the rib 1, that is, the guide plate 32 has a through hole structure, and the rib 1 passes through the hole structure. The rotation of the guide plate 32 is realized by the gap fit between the hole structure and the rib 1. In this case, the rib 1 corresponding to the guide plate 32 can be set as a separate segment, so that the guide plate 32 and the rib 1 can be combined to form an adjustment unit. During assembly, it is fixed to the rib 2 by means of adhesive, hot melt, fasteners, etc.

[0066] Please refer to Figure 4 In some embodiments, a guide plate 32 is provided on each side of the snap-fit ​​portion 31. The two guide plates 32 form a symmetrical structure, which increases the length of the airflow guidance path of the guide plate 32 when the airflow flows through the rectification hole 100, so that both the upstream and downstream sides of the airflow can pass through the guide plate 32, thereby reducing the fluctuation of the airflow after passing through a single guide plate 32 and the snap-fit ​​portion 31, and improving the stability of rectification.

[0067] In some embodiments, the guide plate 32 is rotatably connected to the ribs 2 on both sides. One of the guide plate 32 and the corresponding rib 2 has a shaft structure, and the other has a hole structure that mates with the shaft structure. The shaft structure and the hole structure are interlocked, allowing the guide plate 32 to rotate. To facilitate the installation of the guide plate 32, it can be made of an elastic material, such as thermoplastic polyurethane, polyetheretherketone, or fiberglass. During assembly, the guide plate 32 can be bent to allow space for the mating of the shaft structure and the hole structure.

[0068] Please refer to Figure 4In some embodiments, the guide vane 32 and the latching portion 31 extend along an arcuate trajectory. The arcuate guide vane 32 can guide the airflow more smoothly, reducing airflow separation and turbulence. At the same time, the extension direction of the latching portion 31 is consistent with the extension direction of the guide vane 32, which can reduce the airflow impact caused by the abrupt change in airflow when passing through the junction of the guide vane 32 and the latching portion 31.

[0069] Please combine them together Figure 5 , Figure 6 and Figure 7 Accordingly, this application provides a fairing having an axis C and multiple rectification holes 100 distributed throughout the fairing. The fairing includes multiple ribs 1 and multiple stiffeners 2. The ribs 1 are spaced apart along the axis C and each rib 1 extends along a first circumferential direction. Multiple stiffeners 2 are spaced around the ribs 1 and interweave to form multiple rectification holes 100, which are used to guide the airflow passing through the fairing. Some of the stiffeners 2 are slidably connected to the ribs 1, allowing these stiffeners 2 to move along the first circumferential direction, adjusting their spacing to adjust the airflow speed and flow rate, thereby increasing the fairing's adaptability to different operating conditions.

[0070] Please combine them together Figure 1 and Figure 5 The fairing includes a first rectification port 200 and a second rectification port 300 spaced apart along axis C, and the size of the first rectification port 200 is smaller than the size of the second rectification port 300 in the direction perpendicular to axis C. The ribs 2 slidably connected to the ribs 1 can be an integral structure extending from the first rectification port 200 to the second rectification port 300. These ribs 2 extend along a curve, which can be a variable-diameter curve, a continuous arc curve, or a combination of a variable-diameter curve and a continuous arc curve. Correspondingly, the ribs 1 are spaced apart along the extension direction of the ribs 2, and the size of the ribs 1 increases from the first rectification port 200 to the second rectification port 300.

[0071] Please combine them together Figure 6 and Figure 7 In the rib 2 that is slidably connected to the rib 1, part of the rib 2 is a first radial rib 21. The first radial rib 21 extends from the first rectifier port 200 to the second rectifier port 300 and is spaced apart from the second rectifier port 300. That is, the first radial rib 21 is a section of structure that extends from the first rectifier port 200 to the second rectifier port 300.

[0072] Please combine them together Figure 6 and Figure 8Alternatively, in the rib 2 that is slidably connected to the rib 1, part of the rib 2 is a second radial rib 22. The second radial rib 22 extends from the second rectifier port 300 to the first rectifier port 200 and is spaced apart from the first rectifier port 200. That is, one end of the second radial rib 22 is located between the first rectifier port 200 and the second rectifier port 300, and the other end extends to the second rectifier port 300.

[0073] The first radial rib 21 and the second radial rib 22 can be regarded as dividing the integral rib 2 into two segments. That is to say, the slidingly configured rib 2 can be an integral long segment structure or multiple small segment structures. Therefore, it can be understood that the first radial rib 21 and the second radial rib 22 mentioned above are just examples. The rib 2 can also be divided into two or more small segment structures, as long as each rib 2 can be interwoven with the rib 1 to form the flow-rectifying hole 100.

[0074] The first radial rib 21 and the second radial rib 22 can both extend along a variable diameter curve, a continuous arc curve, or a combination of a variable diameter curve and a continuous arc curve, or they can each extend along different types of curves. In this embodiment, the first radial rib 21 extends along a variable diameter curve, and the second radial rib 22 extends along an arc curve. By splitting the slidingly arranged rib 2, the shapes of the first radial rib 21 and the second radial rib 22 and their connection relationship with the rib 1 can be set separately, increasing the diversity of the fairing structure.

[0075] The first radial rib 21 and the second radial rib 22 can be arranged opposite to each other or staggered to improve airflow distribution, reduce turbulence, and reduce energy loss and noise.

[0076] Please refer to Figure 6 For ease of distinction, the rib 2 that can be divided into the first radial rib 21 and the second radial rib 22 is defined as the adjustable rib 2, and the remaining rib 2 is defined as the fixed rib 2. The multiple fixed ribs 2 are divided into multiple groups that are equidistantly arranged along the first circumference. The number of fixed ribs 2 in each group can be two, three or four, preferably two. The adjustable ribs 2 are distributed between two adjacent groups of fixed ribs 2.

[0077] Please refer to Figure 6In some embodiments, the inner surface of the rib 2, which is slidably connected to the reinforcing rib 1, is provided with a groove 20. The reinforcing rib 1 is inserted into the groove 20 so that the rib 2 can slide relative to the reinforcing rib 1 through the groove 20. The inner surface of the rib 2 is the side facing the fan. The reinforcing rib 1 and the groove 20 are inserted and fitted together. The two can be assembled by a tight fit. By limiting the size of the groove 20 and the reinforcing rib 1, a mutual abutting force is generated between the groove wall of the groove 20 and the reinforcing rib 1, thereby fixing the rib 2. When the rib 2 needs to be moved, a certain pushing force can be applied to it. Alternatively, the groove 20 and the reinforcing rib 1 can also be fixed by an elastic force. For example, the rib 2 is made of plastic and has elasticity. When the rib 2 is inserted into the groove 20 and the reinforcing rib 1, it generates a certain elastic deformation, and the elastic deformation force clamps the reinforcing rib 1.

[0078] When the sliding rib 2 is divided into a first radial rib 21 and a second radial rib 22, the inner surface of each of the first radial rib 21 and the second radial rib 22 is provided with a groove 20, and the groove 20 is inserted into the corresponding rib 1 so that the first radial rib 21 and the second radial rib 22 can slide along the rib 1.

[0079] Please combine them together Figure 6 and Figure 7 In some embodiments, where some of the ribs 2 are first radial ribs 21, the fairing also includes a first rectifier ring 4. The first rectifier ring 4 is connected to the same end of the plurality of ribs 2 and surrounds the first rectifier port 200 forming the fairing. The first rectifier ring 4 can be used to reinforce the connection of the plurality of ribs 2 and increase the structural stability of the fairing. The end of the first radial rib 21 away from the first rectifier ring 4 is disposed opposite to a rib 1, and the rib 1 is an intermediate rib 11.

[0080] The first radial rib 21 has a first slider 211 at each end, and the first rectifier ring 4 and the intermediate rib 11 are respectively provided with a first guide groove 41. The first guide groove 41 extends along the first circumferential direction, and the first slider 211 is inserted into the first guide groove 41. The first guide groove 41 corresponding to the first rectifier ring 4 is provided on the side of the first rectifier ring 4 facing the second rectifier port 300, and the first guide groove 41 corresponding to the intermediate rib 11 is provided on the side facing the axis C.

[0081] When the first radial rib 212 moves, the first slider 211 moves along the first guide groove 41, which plays a guiding role for the first radial rib 212. At the same time, the slide groove 20 is set on the inner side of the first radial rib 212, so that the first radial rib 212 is supported by the middle rib 11 and is locked with the middle rib 11 and the first rectifier ring 4 by the first sliders 211 at both ends, reducing the possibility of the first radial rib 212 falling off.

[0082] Please combine them together Figure 8 , Figure 9 and Figure 10 In some embodiments, where some of the ribs 2 are second radial ribs 22, the fairing also includes a second rectifier ring 5. The second rectifier ring 5 is connected to the other end of the plurality of ribs 2 and surrounds to form a second rectifier port 300. The inner diameter of the second rectifier ring 5 is larger than the inner diameter of the first rectifier ring 4, and the two are coaxially arranged. The end of the second radial rib 22 away from the second rectifier ring 5 is arranged opposite to a rib 1, and the rib 1 is an intermediate rib 11.

[0083] A second slider 221 is provided at each end of the second radial rib 22. The second rectifier ring 5 and the intermediate rib 11 are respectively provided with a second guide groove 51. The second guide grooves 51 corresponding to the second rectifier ring 5 and the intermediate rib 11 are all provided on the side away from the fan. The second guide grooves 51 extend along the first circumferential direction. The second slider 221 is inserted into the second guide groove 51.

[0084] On the one hand, the sliding engagement between the second slider 221 and the second guide groove 51 serves to guide the second radial rib 22. On the other hand, the insertion direction of the slide groove 20 and the rib 1 is the same as the docking direction of the second slider 221 and the second guide groove 51, which facilitates assembly. In addition, the end combination of the second slider 221 and the second radial rib 22 forms a U-shape and hooks onto the middle rib 11, which helps to limit the radial displacement of the second radial rib 22 and stabilize the connection of the second radial rib 22.

[0085] In some embodiments, when both the first radial rib 21 and the second radial rib 22 exist, the intermediate rib 2 corresponding to the second radial rib 22 and the intermediate rib 2 corresponding to the first radial rib 21 are the same rib 2, so that the first guide groove 41 and the second guide groove 51 are concentrated in one rib 2, which helps to simplify the structure and improve the utilization rate of the rib 2. In other embodiments, the first radial rib 21 and the second radial rib 22 may also correspond to different intermediate ribs 2, which can be determined according to the size and position of the first radial rib 21 and the second radial rib 22, and are not specifically limited here.

[0086] Please combine them together Figure 2 , Figure 3 and Figure 9Accordingly, this application provides a fairing with an axis C, comprising a plurality of ribs 1, a plurality of ribs 2, and a grid assembly 3. The plurality of ribs 1 are spaced apart along the axis C, and each rib 1 extends along a first circumferential direction. The plurality of ribs 2 are spaced apart around the ribs 1 and interweave to form a plurality of flow-rectifying holes 100, which are used to guide the airflow passing through the fairing. At least a portion of the ribs 2 are slidably connected to the ribs 1 so that the portion of the ribs 2 can move along the first circumferential direction to adjust the spacing between them, thereby adjusting the airflow speed and flow rate and increasing the adaptability of the fairing to different operating conditions.

[0087] The grating assembly 3 includes a guide plate 32 disposed between two adjacent ribs 2. The guide plate 32 is configured to rotate relative to the ribs 2 to adjust the angle between the guide plate 32 and the axis C. At least a portion of the guide plate 32 is located within the rectifier orifice 100. The rectifier can adjust both the spacing between the ribs 2 and the tilt angle of the guide plate 32. In actual use, the angle of the guide plate or the spacing between the ribs can be adjusted individually or in combination, increasing the rectifier's applicability to different operating conditions. It offers high flexibility, meets the usage requirements under different operating conditions, optimizes the airflow path, and increases the rectifier's multi-functionality.

[0088] Please refer to Figure 8 In some embodiments, the slidably disposed ribs 2 and the grid assembly 3 are alternately distributed along the first circumferential direction, and the ribs 2 are provided with clearance grooves 23 through which the grid assembly 3 passes and mounting openings 24 communicating with the clearance grooves 23.

[0089] Specifically, the rib 2 needs to move along the first circumferential direction so that the grid assembly 3 can pass through the clearance groove 23. Therefore, the rib 2 with the clearance groove 23 is the rib 2 that is slidably connected to the rib 1 in the aforementioned part, or it is the first radial rib 21 or the second radial rib 22 that is slidably connected to the rib 1. In this case, the part of the rib 1 corresponding to the snap-fit ​​part 31 also passes through the clearance groove 23.

[0090] Please refer to Figure 8 For example, the second radial rib 22 is provided with a clearance groove 23 for the grid assembly 3 to move so that the grid assembly 3 passes through the second radial rib 22. The inner side of the second radial rib 22 is provided with a mounting port 24 communicating with the clearance groove 23. At least a portion of the clearance groove 23 is provided along the outer contour after the guide plate 32 and the snap-fit ​​part 31 are combined, so as to minimize the space occupied by the clearance groove 23 on the second radial rib 22 and maintain the strength of the second radial rib 22. The mounting port 24 allows the rib 1 to enter or move out of the clearance groove 23 through the mounting port 24 when the second radial rib 22 is installed or removed.

[0091] Please combine them together Figure 11 and Figure 12Accordingly, the present application provides a fan assembly including a fan body 6, a fan frame 7, and a shroud as described in the above embodiment. The fan frame 7 is an annular structure with air vents at both ends along its axial direction. At least a portion of the fan body 6 is disposed within the fan frame 7, and the shroud covers one of the air vents, enclosing the fan body 6. The fan assembly can possess all the technical features and beneficial effects of the aforementioned shroud, which will not be elaborated upon here.

[0092] Please refer to Figure 11 In some embodiments, the fan body 6 includes fan blades 61 and a fan ring 62. The fan ring 62 is connected to the outer periphery of the fan blades 61, and a portion of the fan ring 62 is located outside the fan frame 7. The fan body and the shroud are coaxially arranged, and a top gap M is formed between the fan ring 62 and the fan frame 7 in a direction parallel to the axis C. Multiple grid plate assemblies 3 are provided and arranged at intervals along the first circumferential direction. Adjacent grid plate assemblies 3 are separated by ribs 2. The grid plate assemblies 3 are arranged opposite to the top gap M, that is, the grid plate assemblies 3 are positioned closest to the top gap M.

[0093] The airflow direction of the fairing is side-in, top-out. Side-in, top-out can be understood as the airflow flowing horizontally into the fairing when the fairing is placed horizontally and the first rectifier ring 4 faces upwards, and then flowing out from the second rectifier ring 5. In the side-in, top-out configuration, the airflow direction near the top gap M region changes significantly, easily generating vortices. Therefore, a guide plate 32 is installed in the top gap M region. By adjusting the inclination angle of the guide plate 32, the airflow through the corresponding rectifier holes 100 in the top gap M region is made smooth, reducing vortex generation and noise.

[0094] Please refer to Figure 12 In some embodiments, the fan body and the shroud are coaxially arranged. The fan body 6 includes a rotating shaft 60, fan blades 61, and a fan ring 62. The fan blades 61 are connected to the rotating shaft 60, and the fan ring 62 is connected to the outer periphery of the fan blades 61. Multiple grid plate assemblies 3 are provided and arranged at intervals along a first circumferential direction. Adjacent grid plate assemblies 3 are separated by ribs 2. At least a portion of the guide plate 32 in each grid plate assembly 3 is located within the rectifier hole 100. In a direction parallel to axis C, the multiple grid plate assemblies 3 and the fan blades 61 have orthographic projections on the same plane, and the orthographic projections of the grid plate assemblies 3 and the fan blades 61 partially overlap. In other words, the grid plate assemblies 3 and the fan blades 61 are arranged opposite each other along their maximum circumferential paths when rotating.

[0095] The airflow direction of the fairing is forward and outward, meaning the airflow enters the fairing from the side of the first rectifier ring 4 and exits from the side of the second rectifier ring 5. In the forward and outward outward configuration, the airflow velocity near the circumferential region of the fan blade 61 is relatively high, easily impacting the surface of the fan blade 61 and generating eddies. Therefore, the grid assembly 3 is positioned opposite to the outer periphery of the fan blade 61, and the tilt angle of the guide plate 32 is adjusted to reduce the direct impact of airflow on the surface of the fan blade 61, thereby reducing pressure pulsation on the surface of the fan blade 61 and helping to reduce noise.

[0096] In some other embodiments, a ring of grid plate assembly 3 arranged opposite to the outer periphery of the fan blade 61 is defined as a reference segment. The grid plate assembly 3 can be arranged on the rib 1 between the reference segment and the first rectifier ring 4, thereby forming a multi-ring guide plate 32 arranged from the first rectifier ring 4 to the reference segment, expanding the range of influence on the airflow.

[0097] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0098] The fairing and fan assembly provided in the embodiments of this application have been described in detail above, and specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these 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. A fairing, characterized by, The fairing has an axis (C), and the fairing comprises: a plurality of ribs (2), the plurality of ribs (2) are arranged along a first circumferential direction; a baffle assembly (3) comprising a deflector (32), the deflector (32) is arranged between two adjacent ribs (2), and the deflector (32) is configured to be rotatable relative to the ribs (2) to adjust an included angle between the deflector (32) and the axis (C).

2. The fairing of claim 1, wherein, The fairing further comprises a plurality of bars (1), the bars (1) are arranged on the ribs (2), the bars (1) have an extension direction, and the extension direction intersects the first circumferential direction, and the deflector (32) is rotatably arranged on the bars (1) to enable the deflector (32) to rotate relative to the ribs (2) through the bars (1), and the deflector (32) extends away from the bars (1).

3. The fairing of claim 2, wherein, The baffle assembly (3) further comprises a clamping portion (31), the clamping portion (31) has an opening (310) and is sleeved on the bars (1), and the deflector (32) is connected with the clamping portion (31).

4. The fairing of claim 3, wherein, The clamping portion (31) is provided with the deflector (32) on both sides.

5. The fairing of claim 1, wherein, The deflector (32) is rotatably connected with the ribs (2) on both sides.

6. A fairing characterized by, The fairing has an axis (C), and the fairing comprises: a plurality of bars (1) arranged along the axis (C), the bars (1) extend along a first circumferential direction; a plurality of ribs (2) arranged around the bars (1) at intervals, and at least part of the ribs (2) are slidably connected with the bars (1).

7. The fairing of claim 6, wherein, In the ribs (2) slidably connected with the bars (1), an inner side surface of the rib (2) is provided with a sliding groove (20), and the bar (1) is inserted into the sliding groove (20) to enable the rib (2) to slide relative to the bar (1) through the sliding groove (20).

8. The fairing of claim 6, wherein, The fairing comprises a first fairing port (200) and a second fairing port (300) arranged along the axis (C) at intervals; In the ribs (2) slidably connected with the bars (1), part of the ribs (2) are first radial ribs (21), the first radial ribs (21) extend from the first fairing port (200) to the second fairing port (300) and are arranged at intervals from the second fairing port (300); Alternatively, part of the ribs (2) are second radial ribs (22), the second radial ribs (22) extend from the second fairing port (300) to the first fairing port (200) and are arranged at intervals from the first fairing port (200).

9. The fairing of claim 8, wherein, In the case that part of the ribs (2) are first radial ribs (21), the fairing further comprises a first fairing ring (4) connected to the same end of the plurality of ribs (2) and surrounding the first fairing port (200), one end of the first radial rib (21) away from the first fairing ring (4) is arranged opposite to one of the ribs (1), and the rib (1) is an intermediate rib (11); Both ends of the first radial rib (21) are respectively provided with a first sliding block (211), the first fairing ring (4) and the intermediate rib (11) are respectively provided with a first guide groove (41), and the first sliding block (211) is inserted and matched with the first guide groove (41).

10. The fairing of claim 8 or 9, wherein, In the case that part of the ribs (2) are second radial ribs (22), the fairing further comprises a second fairing ring (5) connected to the other end of the plurality of ribs (2) and surrounding the second fairing port (300), one end of the second radial rib (22) away from the second fairing ring (5) is arranged opposite to one of the ribs (1), and the rib (1) is an intermediate rib (11); Both ends of the second radial rib (22) are respectively provided with a second sliding block (221), the second fairing ring (5) and the intermediate rib (11) are respectively provided with a second guide groove (51), and the second sliding block (221) is inserted and matched with the second guide groove (51).

11. A fairing characterized by, The fairing has an axis (C), and the fairing comprises: A plurality of ribs (1) are arranged at intervals along the axis (C), and the ribs (1) extend along a first circumferential direction; A plurality of ribs (2) are arranged at intervals around the ribs (1), and at least part of the ribs (2) are slidingly connected with the ribs (1); A grid plate assembly (3) comprises a guide plate (32), the guide plate (32) is arranged between two adjacent ribs (2), and the guide plate (32) is configured to be able to rotate relative to the ribs (2) to adjust the included angle between the guide plate (32) and the axis (C).

12. The fairing of claim 11, wherein, The slidingly arranged ribs (2) and the grid plate assemblies (3) are alternately distributed, and the ribs (2) are provided with a avoiding groove (23) for the grid plate assembly (3) to pass through and a mounting opening (24) communicating with the avoiding groove (23).

13. A fan assembly comprising: Comprise: A fan body (6); A fan frame (7) having two air inlets oppositely arranged along the axis (C), and the fan body (6) is arranged in the fan frame (7); The fairing of any one of claims 1 to 12, the fairing is arranged in one of the air inlets.

14. The fan assembly of claim 13, wherein, The fan body (6) comprises a fan ring (62), and in a direction parallel to the axis (C), there is a top gap (M) between the fan ring (62) and the fan frame (7); The number of grid plate assemblies (3) is arranged to be multiple, and the grid plate assemblies (3) are arranged opposite to the top gap (M) and are arranged at intervals along the first circumferential direction.

15. The fan assembly of claim 13, wherein, The fan body (6) comprises a fan blade (61). The number of the grid plate assemblies (3) is multiple, and the grid plate assemblies (3) are arranged along the first circumferential interval, and in the direction parallel to the axis (C), the multiple grid plate assemblies (3) and the fan blades (61) have orthographic projections in the same plane, and the orthographic projection of the grid plate assembly (3) partially overlaps with the orthographic projection of the fan blade (61).

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