Fairing and fan assembly

Abstract

The invention discloses a fairing and a fan assembly, and belongs to the technical field of fans, the fairing comprises at least two fairing body modules, the at least two fairing body modules are connected with each other through a first connecting assembly, and each fairing body module is provided with a plurality of ventilation holes; the first connecting assembly comprises a first clamping part and a second clamping part, in every two adjacent cover body modules, the first clamping part is arranged in one cover body module, the second clamping part is arranged in the other cover body module, and the first clamping part is connected with the second clamping part; according to the fairing, the structural design that the multiple fairing body modules are spliced is adopted, so that the fairing can be flexibly combined according to the sizes and shapes of different draught fans, the fairing can be suitable for the draught fans of different specifications and types, and the adaptability and universality of the fairing are improved; the fairing body modules are connected in a clamped mode through the first clamping parts and the second clamping parts, rapid disassembly and assembly are facilitated, and the flexibility and maintenance convenience of the fairing are enhanced.

Description

Technical Field

[0001] The present application belongs to the technical field of fans, and in particular relates to a fairing and a fan assembly. Background Art

[0002] As a fluid machinery widely used in many fields such as energy engineering, fans often use high speed or multiple fans working at the same time. This working mode will bring serious noise pollution and affect people's comfort.

[0003] In order to reduce the noise of the fan, a fairing is usually installed outside the fan to achieve noise reduction while ensuring the airflow guidance effect, but the installation flexibility of this fairing is poor. Summary of the invention

[0004] An embodiment of the present application provides a fairing, aiming to solve the technical problem of poor installation flexibility of the fairing; another object of the present application is to provide a fan assembly.

[0005] The fairing described in the embodiment of the present application comprises at least two cover modules, at least two of the cover modules are connected to each other through a first connecting assembly, and each of the cover modules is provided with a plurality of ventilation holes;

[0006] The first connecting component includes a first clamping portion and a second clamping portion. In two adjacent cover modules, the first clamping portion is disposed on one of them, and the second clamping portion is disposed on the other one. The first clamping portion and the second clamping portion are connected.

[0007] In some embodiments, at least one of the cover modules is a first cover module, and another of the cover modules is a second cover module, and the second cover module is arranged around the periphery of the first cover module;

[0008] The first clamping portion is disposed on the first cover module, and the second clamping portion is disposed on the second cover module.

[0009] In some embodiments, the fairing has an axis, the first cover module includes a plurality of first ribs and a second rib, and the plurality of first ribs are circumferentially spaced around the axis and connected to each other;

[0010] The second rib is connected to one end of the plurality of first ribs away from the axis, and the first clamping portion is disposed on a side of the second rib close to the second cover module.

[0011] In some embodiments, the second rib includes a first main body portion and a first mounting portion, and the second clamping portion is connected to the first mounting portion.

[0012] In some embodiments, a vertical distance between the first main body portion and the axis is greater than a vertical distance between the first mounting portion and the axis.

[0013] In some embodiments, the second cover module includes a plurality of first radial ribs, the plurality of first radial ribs are arranged at intervals around the outer circumference of the first cover module, and two adjacent first radial ribs are connected to each other;

[0014] The first radial rib extends along an arc track, and a central angle of the first radial rib is α, which satisfies: 27°≤α≤90°.

[0015] In some embodiments, the second cover body module includes a plurality of first radial ribs and first circumferential ribs, the plurality of first radial ribs are arranged at intervals around the outer circumference of the first cover body module, the first radial ribs are connected through the first circumferential ribs, and the second clamping portion is arranged on a side of the first circumferential rib close to the first cover body module.

[0016] In some embodiments, the first circumferential rib includes a second main body portion and a second mounting portion, the width of the second mounting portion along the axial direction is greater than the width of the second main body portion, and the second clamping portion is connected to the second mounting portion.

[0017] In some embodiments, the second rib includes a first main body portion and a first mounting portion, and the second clamping portion is connected to the first mounting portion;

[0018] The width of the first mounting portion is greater than the width of the first main body portion, and the width of the first mounting portion is the same as the width of the second mounting portion.

[0019] In some embodiments, the second cover body module includes a plurality of sub-units, and the plurality of sub-units are arranged in sequence around the outer circumference of the first cover body module and around the first opening, and two adjacent sub-units are connected to each other, and at least some of the sub-units are connected to the first cover body module via the first connecting assembly.

[0020] In some embodiments, a plurality of the cover modules are arranged in sequence along the circumferential direction, and are surrounded by a first air guide port and a second air guide port, wherein the first air guide port and the second air guide port are arranged opposite to each other.

[0021] In some embodiments, the porosity of at least one of the cover modules is different from the porosity of another of the cover modules.

[0022] In some embodiments, the fairing further includes a shielding portion, and the shielding portion is disposed on the cover module.

[0023] In some embodiments, the first clamping portion includes an intermediate block and a clamping block, the intermediate block is connected to the cover module, the clamping block is connected to a side of the intermediate block away from the cover module, and the outer circumference of the clamping block is greater than the outer circumference of the intermediate block;

[0024] The second clamping portion includes a clamping sleeve, which is provided with a first clamping slot and a second clamping slot connected to the first clamping slot, the same end of the first clamping slot and the second clamping slot passes through the clamping sleeve, and the second clamping slot passes through the clamping sleeve in a direction away from the cover module, the first clamping slot is used for plugging and mating with the clamping block, and the second clamping slot is used for plugging and mating with the intermediate block.

[0025] Accordingly, a fan assembly described in an embodiment of the present application includes:

[0026] Body;

[0027] The above-mentioned fairing is arranged on the air outlet of the machine body.

[0028] The fairing of the embodiment of the present application adopts a structural design in which multiple cover body modules are spliced ​​together, so that the fairing can be flexibly combined according to the sizes and shapes of different fans, so that it can be suitable for fans of different specifications and types, thereby improving the adaptability and versatility of the fairing; multiple ventilation holes help to optimize the airflow and reduce noise by reducing turbulence and airflow separation; the cover body modules are snap-connected by the first snap-fit ​​part and the second snap-fit ​​part, which is convenient for quick disassembly and assembly, thereby enhancing the flexibility and maintenance convenience of the fairing.

[0029] The fan assembly of the embodiment of the present application includes the above-mentioned fairing, and thus can have all the technical features and beneficial effects of the above-mentioned fairing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 A schematic diagram of the structure of a fairing provided in an embodiment of the present application;

[0032] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0033] Figure 3 A schematic diagram of the structure of a second cover module provided in an embodiment of the present application;

[0034] Figure 4 Another structural schematic diagram of the second cover module provided in an embodiment of the present application;

[0035] Figure 5 Another structural schematic diagram of the second cover module provided in an embodiment of the present application;

[0036] Figure 6 Another structural schematic diagram of the second cover module provided in an embodiment of the present application;

[0037] Figure 7 Another structural schematic diagram of the second cover module provided in an embodiment of the present application;

[0038] Figure 8 A schematic diagram of the structure of a first radial rib provided in an embodiment of the present application;

[0039] Fig. 9 A schematic diagram of the structure of a first cover module and a second cover module provided in an embodiment of the present application;

[0040] Fig.10 A schematic diagram of the structure of a single cover module provided in an embodiment of the present application;

[0041] Fig.11 A schematic diagram of the structure of a plurality of cover module combinations provided in an embodiment of the present application;

[0042] Fig.12 A schematic diagram of a structure of multiple cover modules with different porosities provided in an embodiment of the present application;

[0043] Fig.13 A schematic diagram of the structure of the shielding portion provided in an embodiment of the present application;

[0044] Fig.14 A schematic structural diagram of a first clamping portion provided in an embodiment of the present application;

[0045] Fig.15 A schematic diagram of the structure of the second clamping portion provided in an embodiment of the present application;

[0046] Fig.16 A schematic diagram of the structure of the airframe and fairing provided in an embodiment of the present application;

[0047] Reference numerals: 1, cover module; 10, ventilation hole; 11, first cover module; 111, first rib; 112, second rib; 1121, first main body; 1122, first mounting portion; 1120, avoidance; 114, first guide ring; 115, third rib; 12, second cover module; 120, first opening; 121, first radial rib; 122, first circumferential rib; 1221, second main body; 1222, second mounting portion; 12 3. third circumferential rib; 124. second guide ring; 125. subunit; 13. first guide port; 14. second guide port; 15. shielding portion; 16. second radial rib; 17. second circumferential rib; 18. first arc plate; 19. second arc plate; 2. first connecting assembly; 21. first clamping portion; 211. middle block; 212. clamping block; 22. second clamping portion; 221. sleeve; 2211. first slot; 2212. second slot; 3. body. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0049] In the description of the present application, it should be understood that the terms "height", "thickness", "up", "down", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined.

[0050] Please combine Figure 1 , Figure 2 and Figure 3The fairing of the embodiment of the present application includes at least two cover modules 1, at least two cover modules 1 are interconnected by a first connecting assembly 2, and each cover module 1 is provided with a plurality of ventilation holes 10, and the ventilation holes 10 are used for airflow to pass through, so as to introduce or lead out the airflow. The cover module 1 can be a single complete segment structure, that is, the cover module 1 is a continuous, integral structure, which can be annular or arc-shaped or fan-shaped. The cover module 1 can also be a collection of multiple independent segment structures, that is, the cover module 1 is a spliced ​​structure, each segment can be arc-shaped or fan-shaped, and multiple segments are spliced ​​to form a larger arc-shaped or fan-shaped or annular structure, which is mainly divided according to different categories, such as the direction of the fairing (radial or circumferential), or the area of ​​the fairing (upper area, lower area or inner area, outer area).

[0051] The first connecting component 2 includes a first clamping portion 21 and a second clamping portion 22. In two adjacent cover modules 1, the first clamping portion 21 is arranged on one of them, and the second clamping portion 22 is arranged on the other one. The first clamping portion 21 and the second clamping portion 22 are located at the docking position of the two cover modules 1, and the first clamping portion 21 and the second clamping portion 22 are connected.

[0052] The first clamping portion 21 and the second clamping portion 22 are detachably connected, and the detachable connection may be a clamping connection, bonding, screw connection, pin connection, etc., and in the present embodiment, a clamping connection is preferred. The clamping connection means that the first clamping portion 21 and the second clamping portion 22 have a mutual matching relationship in geometric shape and / or size, and can realize repeated connection and disassembly of the two components, for example, a protrusion structure and a hole structure, the protrusion structure and the hole structure are plugged into each other, and the mutual distance between them in a certain direction is limited by the matching of their shapes; or fixation is achieved by the mutual force, and the force can be achieved by matching the dimensional tolerance, such as interference fit, or by setting the protrusion structure and / or the hole structure to be elastic or magnetic, and using its elastic deformation force or magnetic force to achieve mutual fixation, or the protrusion structure can be set in the form of a spring pin, a spring lock block, etc., to indirectly apply a force to the hole structure.

[0053] In some embodiments, the cover module 1 includes a cover module a and a cover module b, the cover module a and the cover module b are adjacent and interconnected, the cover module 1 can be composed of multiple independent fragment structures, and multiple cover modules 1 are interconnected through the first connecting component 2. It can be understood that each fragment under the cover module a is connected to the cover module b through the first connecting component 2.

[0054] Each cover module 1 is spliced ​​to form a fairing, and the cover modules 1 are detachably connected by a snap-fit ​​connection structure. During assembly, cover modules 1 of different specifications can be spliced, so that the fairing can meet the needs of fans of different sizes, different blade shapes, and different fan speeds, thereby increasing the versatility of the fairing. In addition, the cover modules 1 can be used interchangeably in different fairing configurations. This design allows the arrangement and combination of the cover modules 1 to be flexibly adjusted in different fan applications, which is conducive to improving the flexibility and versatility of the fairing.

[0055] Please combine Figure 1 , Figure 2 and Figure 3 In some embodiments, at least one cover module 1 is a first cover module 11, and another cover module 1 is a second cover module 12. The second cover module 12 is arranged around the outer periphery of the first cover module 11, and the second cover module 12 is close to the first cover module 11 to enclose a first opening 120. The first clamping portion 21 is arranged on the first cover module 11, and the second clamping portion 22 is arranged on the second cover module 12 and is located in the first opening 120. When the first clamping portion 21 and the second clamping portion 22 are engaged and connected, at least part of the first cover module 11 is arranged in the first opening 120, and the first cover module 11 abuts against the inner wall surface of the second cover module 12. The first cover module 11 and the second cover module 12 are both rotary structures, and the central axes of the two are coaxially arranged. At this time, the overall area of ​​the first cover module 11 and the second cover module 12 is relatively large, which can reduce the connection points required for the first connecting component 2, which can improve the overall strength and stability of the structure on the one hand, and simplify the installation process on the other hand.

[0056] Please combine Figures 4 to 7 Since the second cover module 12 is detachable as a whole, different second cover modules 12 can be replaced to combine with the first cover module 11, thereby changing the overall height of the fairing or the diameter of the fairing to adapt to fans of different specifications and installation in different spaces.

[0057] In some other embodiments, one of the first cover module 11 and the second cover module 12 is an integral structure, and the other is a spliced ​​structure composed of multiple segments, or both of the first cover module 11 and the second cover module 12 are spliced ​​structures composed of multiple segments.

[0058] The first cover module 11 may also be elliptical or parabolic. Since the shape of the second cover module 12 is arranged around the outer circumference of the first cover module 11 , the shape of the second cover module 12 is adapted to the shape of the first cover module 11 .

[0059] Please combine Figure 1 and Figure 2 In some embodiments, the fairing has an axis M, and the first cover module 11 includes a plurality of first ribs 111 and a second rib 112. The plurality of first ribs 111 are arranged circumferentially around the axis M and connected to each other so that the plurality of first ribs 111 are connected as a whole. The second rib 112 is connected to one end of the plurality of first ribs 111 away from the axis M and abuts against the inner wall surface of the second cover module 12. The first clamping portion 21 is disposed on the side of the second rib 112 close to the second cover module 12. Please combine Figure 1 and Figure 2 The second rib 112 serves to connect the first ribs 111 on one hand, and to connect the first clamping portion 21 on the other hand. The second rib 112 can be an annular structure as a whole, or can be formed by splicing multiple arc structures along the circumferential direction. The relative position of the first clamping portion 21 can make it close to the inner wall surface of the second cover module 12 at the first opening 120, so as to reduce the gap between them and reduce the space occupied by the first cover module 11 in the direction of the axis M.

[0060] Please combine Figure 1 and Figure 2 In some embodiments, the second rib 112 includes a first main body portion 1121 and a first mounting portion 1122, and the second clamping portion 22 is connected to the first mounting portion 1122. The first main body portion 1121 and the first mounting portion 1122 are both connected to the first rib 111, and both are arc-shaped. The first main body portion 1121 and the first mounting portion 1122 are combined to form an annular structure, wherein the first main body portion 1121 can be an arc-shaped integrated structure, or can be spliced ​​by a plurality of independent arc segments, each arc segment is connected between two adjacent first ribs 111, and the side of each arc segment away from the axis M is flush with the end face of the first rib 111 away from the axis M, and together form a large arc surface, which is opposite to the inner wall surface of the second cover module 12 at the first opening 120.

[0061] The first mounting portion 1122 may be disposed in the extension direction of the first main body portion 1121, or may be misaligned with the first main body portion 1121 in a direction perpendicular to the axis M. The split structure of the second rib 112 allows the relative position of the first clamping portion 21 to be changed by adjusting the position of the first mounting portion 1122, and when the first mounting portion 1122 is detachably connected, the interchangeability and flexibility of the first clamping portion 21 can be improved.

[0062] In some other embodiments, the first mounting portion 1122 may also extend along a straight line, or present other shapes, which may be changed according to actual design requirements.

[0063] Please combine Figure 1 and Figure 2 In some embodiments, the vertical distance between the first main body 1121 and the axis is greater than the vertical distance between the first mounting portion 1122 and the axis M. The two ends of the first main body 1121 are spaced to form an escape opening 1120, the first mounting portion 1122 is connected between two adjacent first ribs 111, the first mounting portion 1122 and the escape opening 1120 are close to each other, the first clamping portion 21 is arranged on the side of the first mounting portion 1122 away from the axis M, and is preferably in the middle of the arc length of the first mounting portion 1122, and the escape opening and the first clamping portion are arranged relative to each other.

[0064] The first clamping portion 21 and the second clamping portion 22 are engaged with each other in the avoidance opening 1120, thereby accommodating the first clamping portion 21 and the second clamping portion 22. At this time, the side of the first main body portion that is away from the axis M abuts against the inner wall surface of the second cover module 12 at the first opening 120. On the one hand, the contact area between each other is increased, which helps to enhance the stability of the fairing. On the other hand, the gap between each other is reduced, so that the airflow flows through the pre-designed ventilation hole 10 to avoid a large gap at the joint between the two and affect the fairing effect.

[0065] Please refer to Figure 1 In some embodiments, the first cover module 11 further includes a first guide ring 114 and a third rib 115, the first guide ring 114 is connected to one end of the plurality of first ribs 111 close to the axis M, two adjacent first ribs 111 are connected by a plurality of third ribs 115, and the plurality of third ribs 115 are arranged at intervals along the extension direction of the first ribs 111, each third rib 115 is arc-shaped, and the first guide ring 114, the first rib 111, the second rib 112 and the third rib 115 are interwoven to form a plurality of ventilation holes 10.

[0066] In some other embodiments, the third rib 115 may also be an annular structure extending around the axis M, and each third rib 115 is connected to each first rib 111, and a grid structure is formed by a plurality of third ribs 115 and a plurality of third ribs 115. In some embodiments, the first rib 111 may be an integral structure, or may be divided into a plurality of sub-segments, which are spliced ​​together. Each first rib 111 is provided with a first groove, and the second rib 112 is plugged into the first groove, so that the second rib 112 passes through each first rib 111; similarly, the first rib 111 may also be provided with a second groove, so that the third rib 115 is plugged into the second groove, so that the third rib 115 passes through each first rib 111 in sequence.

[0067] Please combine Figure 3 and Figure 8In some embodiments, the second cover module 12 includes a plurality of first radial ribs 121, which are arranged at intervals around the outer periphery of the first cover module 11, and two adjacent first radial ribs 121 are connected to each other, and the first radial ribs 121 extend along an arc trajectory, and the center angle of the first radial rib 121 is α, which satisfies: 27°≤α≤90°. The arc length of the first radial rib 121 is related to its radius and the center angle α, so the size of the second cover module 12 can be changed by adjusting one or more of the parameters to match and install with fans of different sizes and adapt to different installation spaces. For example, when the radius of the first radial rib 121 (represented by r in the figure) remains unchanged, the larger the center angle α, the larger the arc length, and the larger the width of the first radial rib 121 along the axis M direction.

[0068] Please refer to Figure 3 In some embodiments, the second cover module 12 further includes a plurality of first radial ribs 121 and first circumferential ribs 122. The plurality of first radial ribs 121 are arranged at intervals around the outer periphery of the first cover module 11. The first radial ribs 121 are connected by the first circumferential ribs 122. The first circumferential ribs 122 are arranged at one end of the first radial ribs 121 close to the first cover module 11. The second clamping portion 22 is arranged on one side of the first circumferential rib 122 close to the first cover module 11. The first circumferential rib 122 can be an integrated annular structure, which can improve the strength and rigidity of the overall structure. The first circumferential rib 122 can also be a structure in which a plurality of sub-segments are spliced ​​together. The sub-segments extend along an arc track. Each sub-segment is connected between two adjacent first radial ribs 121. The splicing structure can adjust the size and shape of each sub-segment as needed to meet different design requirements.

[0069] Please refer to Figure 3 In some embodiments, the first circumferential rib 122 includes a second main body portion 1221 and a second mounting portion 1222, the second main body portion 1221 and the second mounting portion 1222 are both connected to the first radial rib 121, the width of the second mounting portion 1222 along the axis M direction is greater than the width of the second main body portion 1221, and the second clamping portion 22 is connected to the second mounting portion 1222.

[0070] In this embodiment, there are multiple second main body portions 1221, and the second main body portion 1221 and the second mounting portion 1222 are respectively connected between two adjacent first radial ribs 121. The first radial rib 121, the second main body portion 1221 and the second mounting portion 1222 are flush with a side surface close to the first cover body module 11, and constitute the inner wall surface of the second cover body module 12 at the first opening 120, wherein the second mounting portion 1222 is arranged opposite to the first mounting portion 1122, and the second clamping portion 22 is located on the side of the second mounting portion 1222 facing the first mounting portion 1122, so that the second clamping portion 22 and the first clamping portion 21 are relatively distributed.

[0071] Since the width of the second mounting portion 1222 is greater than the width of the second main body portion 1221 , the strength of the first circumferential rib 122 at the position of the second clamping portion 22 is enhanced.

[0072] In some other embodiments, the second main body 1221 may also be an integrated arc-shaped structure, which is connected to the plurality of first radial ribs 121 to fix the plurality of first radial ribs 121, and the second main body 1221 and the second mounting portion 1222 are spliced ​​to form an annular structure. In addition, the first circumferential rib 122 may be connected to the outside of the plurality of first radial ribs 121, may be connected to the inside of the plurality of first radial ribs 121, or may pass through each first radial rib 121 in sequence.

[0073] Please combine Figure 1 and Figure 3 In some embodiments, the second rib 112 includes a first main body portion 1121 and a first mounting portion 1122, the second clamping portion 22 is connected to the first mounting portion 1122, the width of the first mounting portion 1122 is greater than the width of the first main body portion 1121, and the width of the first mounting portion 1122 is the same as the width of the second mounting portion 1222.

[0074] By widening the size of the first mounting portion 1122, its supporting function and reinforcement effect are enhanced. At the same time, the width of the first mounting portion 1122 is the same as the width of the second mounting portion 1222, so that the connection strength of the first clamping portion 21 and the second clamping portion 22 is consistent, which helps to improve the structural stability.

[0075] Please combine Figure 1 and Figure 3In some embodiments, the second cover module 12 further includes a third circumferential rib 123 and a second guide ring 124. A plurality of third circumferential ribs 123 are connected between two adjacent first radial ribs 121, and the plurality of third circumferential ribs 123 are arranged at intervals along the extension direction of the first radial rib 121. The second guide ring 124 is connected to one end of the plurality of first radial ribs 121 away from the first cover module 11. The second guide ring 124, the first radial rib 121, the first circumferential rib 122 and the third circumferential rib 123 are interwoven to form the ventilation hole 10 on the second cover module 12. When the first cover module 11 and the second cover module 12 are spliced ​​and fixed by the first connecting assembly 2, the first guide ring 114 and the second guide ring 124 are arranged opposite to each other in the direction of the axis M, and the inner diameter of the first guide ring 114 is smaller than the inner diameter of the second guide ring 124.

[0076] In some other embodiments, the third circumferential rib 123 may also be an integrated annular structure, which may be connected to the outer arc surface of each first radial rib 121, or may be connected to the inner arc surface of each first radial rib 121, or may pass through each first radial rib 121 in sequence.

[0077] Please refer to Fig. 9 In some embodiments, the second cover module 12 includes a plurality of sub-units 125, each sub-unit 125 is fan-shaped, and each sub-unit 125 has a plurality of ventilation holes 10, and the plurality of sub-units 125 are arranged in sequence around the periphery of the first cover module 11, and are formed around a first opening 120, and two adjacent sub-units 125 are connected to each other, and the connection can be abutment or bonding or hinged or clamped, and at least part of the sub-units 125 are connected to the first cover module 11 through a first connecting component 2.

[0078] Specifically, each subunit 125 is connected to the first cover module 11 through the first connecting assembly 2, and two adjacent subunits 125 are abutted or bonded to each other.

[0079] Alternatively, some of the sub-units 125 are connected to the first cover body module 11 through the first connecting component 2, and two adjacent sub-units 125 are bonded or snap-fitted to each other, wherein the snap-fitting between two adjacent sub-units 125 can adopt the same structure as the first connecting component 2, that is, in two adjacent sub-units 125, the first snap-fitting portion 21 is arranged on one of them, and the second snap-fitting portion 22 is arranged on the other, and the first snap-fitting portion 21 and the second snap-fitting portion 22 are snap-fitted and connected.

[0080] When the fairing is split into the first cover module 11 and the second cover module 12, the volume of the single subunit 125 can be reduced by further splitting the second cover module 12, which can increase the flexibility of the fairing combination and facilitate storage and transportation.

[0081] In some embodiments, the porosity of at least one subunit 125 is different from the porosity of another subunit 125. By combining subunits 125 with different pore sizes, it is convenient to find appropriate fairing pore size parameters in experiments to improve design efficiency.

[0082] Please combine Fig.10 and Fig.11 In some embodiments, a plurality of cover modules 1 are arranged in sequence along the circumferential direction, and a first air guide port 13 and a second air guide port 14 are formed around the cover modules 1. The first air guide port 13 and the second air guide port 14 are arranged opposite to each other, and an inner diameter of the first air guide port 13 is smaller than an inner diameter of the second air guide port 14.

[0083] Specifically, the cover module 1 includes a first arc plate 18, a second arc plate 19, a plurality of second radial ribs 16 and a plurality of second circumferential ribs 17, the second radial ribs 16 extend along a curved track, the plurality of second radial ribs 16 are arranged at intervals along the circumferential direction, two adjacent second radial ribs 16 are connected by a plurality of second circumferential ribs 17, and the plurality of second circumferential ribs 17 are arranged at intervals along the extension direction of the second radial ribs 16, one end of the plurality of second radial ribs 16 is connected together through the first arc plate 18, and the other end of the plurality of second radial ribs 16 is connected together through the second arc plate 19. When a plurality of cover modules 1 are spliced ​​into a fairing, the plurality of first arc plates 18 are surrounded by a ring and form a first guide port 13, and the plurality of second arc plates 19 are also surrounded by a ring and form a second guide port 14. The first connecting component 2 is arranged between two adjacent cover modules 1, that is, in two second radial ribs 16 corresponding to the joint of the two cover modules 1, wherein a first clamping portion 21 is arranged on the side of one of the second radial ribs 16, and a second clamping portion 22 is arranged on the side of the other second radial rib 16.

[0084] Multiple cover modules 1 realize radial splitting of the fairing, and each cover module 1 can maintain good structural integrity, which is beneficial to increase the strength of the cover module 1. At the same time, the volume of the cover module 1 intersecting the fairing is reduced, which is convenient for storage and transportation.

[0085] In some other embodiments, two adjacent cover modules 1 may also be connected by bonding or a hinge structure.

[0086] Please refer to Fig.12In some embodiments, the porosity of at least one cover module 1 is different from the porosity of another cover module 1, and the porosity can be adjusted by reducing the number of radial ribs or axial ribs. The porosity is the ratio of the area of ​​the openings on the surface of the cover module 1 to the total surface area of ​​the cover module 1. By splicing cover modules 1 with different pore sizes, on the one hand, the distribution of the airflow can be optimized, eddies and turbulence can be reduced, and the efficiency of the fan can be improved. On the other hand, the structural strength of the fairing can be enhanced without significantly increasing the weight.

[0087] Please refer to Fig.13 In some embodiments, the fairing further includes a shielding portion 15, which is disposed on the cover module 1. Specifically, the shielding portion 15 is a plate-like or sheet-like structure, which can be connected between two adjacent second radial ribs 16, or can cover the surface of multiple second radial ribs 16. The function of the shielding portion 15 is to cover a portion of the area between the second radial ribs 16 to replace or cover the ventilation holes 10, so as to achieve the purpose of changing the airflow path. At the same time, the shielding portion 15 is a solid structure and can also play a protective role. During actual assembly, the shielding portion 15 can be installed at a special part of the fairing to reduce the entry of foreign matter into the fairing and improve safety performance. Since the shielding portion 15 can replace or cover the ventilation holes 10, the porosity of the fairing can also be adjusted by the shielding portion 15. Similarly, when the fairing is split into a first cover module 11 and a plurality of subunits 125, a shielding portion 15 can also be provided on the first cover module 11 and / or the subunit 125.

[0088] Please combine Fig.14 and Fig.15 In some embodiments, the first clamping portion 21 includes an intermediate block 211 and a clamping block 212, wherein the intermediate block 211 is connected to the cover body module 1, the clamping block 212 is connected to a side of the intermediate block 211 away from the cover body module 1, and the outer circumferential dimension of the clamping block 212 is larger than the outer circumferential dimension of the intermediate block 211, that is, in the arrangement direction of the intermediate block 211 and the clamping block 212, the intermediate block 211 has a positive projection on the clamping block 212, and each side surface on the outer circumference of the clamping block 212 has a spacing from the positive projection.

[0089] The second clamping portion 22 includes a clamping sleeve 221, which is provided with a first clamping slot 2211 and a second clamping slot 2212 connected to the first clamping slot 2211. The same end of the first clamping slot 2211 and the second clamping slot 2212 penetrates the clamping sleeve 221, and the second clamping slot 2212 penetrates the clamping sleeve 221 in a direction away from the cover module 1. The first clamping slot 2211 is used for plugging and matching with the clamping block 212, and the second clamping slot 2212 is used for plugging and matching with the intermediate block 211. Combining the size relationship between the intermediate block 211 and the clamping block 212, it can be obtained that the groove width of the second clamping slot 2212 is smaller than the groove width of the first clamping slot 2211, and the groove depth of the second clamping slot 2212 is smaller than the groove depth of the first clamping slot 2211. In this embodiment, the first clamping slot 2211 and the second clamping slot 2212 both extend along the axis M direction, and the top ends of the first clamping slot 2211 and the second clamping slot 2212 along the axis M direction penetrate the clamping sleeve 221.

[0090] When the cover body modules 1 are spliced, the snap-fit ​​block 212 is inserted into the first snap-fit ​​groove 2211, and the middle block 211 is inserted into the second snap-fit ​​groove 2212 to achieve mutual snap-fit. Both the middle block 211 and the snap-fit ​​block 212 are snap-fitted, which can increase the snap-fitting force between the first snap-fitting portion 21 and the second snap-fitting portion 22 and stabilize the connection between the cover body modules 1.

[0091] Please refer to Fig.16 Accordingly, a fan assembly provided in an embodiment of the present application includes a body 3 and a fairing of the above embodiment, and the fairing is arranged at the air outlet of the body 3. The fan assembly can have all the technical features and beneficial effects of the above fairing, which will not be repeated here.

[0092] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0093] The fairing provided in the embodiments of the present application is introduced in detail above, and the principles and implementation methods of the present application are explained by applying specific examples. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application; ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A fairing, characterized in that: It comprises at least two cover modules (1), wherein at least two of the cover modules (1) are connected to each other via a first connection assembly (2), and each of the cover modules (1) is provided with a plurality of ventilation holes (10); The first connecting component (2) comprises a first clamping portion (21) and a second clamping portion (22); in two adjacent cover modules (1), the first clamping portion (21) is arranged on one of them, and the second clamping portion (22) is arranged on the other; the first clamping portion (21) and the second clamping portion (22) are connected.

2. The fairing according to claim 1, characterized in that: At least one of the cover modules (1) is a first cover module (11), and another of the cover modules (1) is a second cover module (12); the second cover module (12) is arranged around the outer periphery of the first cover module (11); the first clamping portion (21) is arranged on the first cover module (11), and the second clamping portion (22) is arranged on the second cover module (12).

3. The fairing according to claim 2, characterized in that: The fairing has an axis (M), the first cover module (11) comprises a plurality of first ribs (111) and second ribs (112), the plurality of first ribs (111) are circumferentially spaced around the axis (M) and are connected to each other; The second rib (112) is connected to one end of the plurality of first ribs (111) away from the axis (M), and the first clamping portion (21) is arranged on a side of the second rib (112) close to the second cover module (12).

4. The fairing according to claim 3, characterized in that: The second rib (112) comprises a first main body portion (1121) and a first mounting portion (1122), and the second clamping portion (22) is connected to the first mounting portion (1122).

5. The fairing according to claim 4, characterized in that: The vertical distance between the first main body portion (1121) and the axis (M) is greater than the vertical distance between the first mounting portion (1122) and the axis (M).

6. The fairing according to claim 3, characterized in that: The second cover module (12) comprises a plurality of first radial ribs (121), the plurality of first radial ribs (121) are arranged at intervals around the outer circumference of the first cover module (11), and two adjacent first radial ribs (121) are connected to each other; The first radial rib (121) extends along an arc-shaped track, and the center angle of the first radial rib (121) is α, which satisfies: 27°≤α≤90°.

7. The fairing according to claim 3, characterized in that: The second cover module (12) comprises a plurality of first radial ribs (121) and first circumferential ribs (122); the plurality of first radial ribs (121) are arranged at intervals around the outer circumference of the first cover module (11); the first radial ribs (121) are connected via the first circumferential ribs (122); and the second clamping portion (22) is arranged on a side of the first circumferential rib (122) close to the first cover module (11).

8. The fairing according to claim 7, characterized in that: The first circumferential rib (122) comprises a second main body portion (1221) and a second mounting portion (1222), the width of the second mounting portion (1222) along the axis (M) direction is greater than the width of the second main body portion (1221), and the second clamping portion (22) is connected to the second mounting portion (1222).

9. The fairing according to claim 8, characterized in that: The second rib (112) comprises a first main body portion (1121) and a first mounting portion (1122), and the second clamping portion (22) is connected to the first mounting portion (1122); The width of the first mounting portion (113) is greater than the width of the first main body portion (1121), and the width of the first mounting portion (113) is the same as the width of the second mounting portion (123).

10. The fairing according to claim 3, characterized in that: The second cover module (12) comprises a plurality of sub-units (125), wherein the plurality of sub-units (125) are sequentially arranged around the outer circumference of the first cover module (11), and two adjacent sub-units (125) are connected to each other, and at least part of the sub-units (125) are connected to the first cover module (11) via the first connecting assembly (2).

11. The fairing according to claim 1, characterized in that: The plurality of cover modules (1) are sequentially arranged along the circumferential direction and surround a first air guide port (13) and a second air guide port (14), wherein the first air guide port (13) and the second air guide port (14) are arranged opposite to each other.

12. The fairing according to any one of claims 1 to 11, characterized in that: The porosity of at least one of the cover modules (1) is different from the porosity of another of the cover modules (1).

13. The fairing according to any one of claims 1 to 11, characterized in that: The fairing further comprises a shielding portion (15), and the shielding portion (15) is arranged on the cover module (1).

14. The fairing according to claim 1, characterized in that: The first clamping portion (21) comprises an intermediate block (211) and a clamping block (212), wherein the intermediate block (211) is connected to the cover module (1), and the clamping block (212) is connected to a side of the intermediate block (211) away from the cover module (1), and the outer circumference of the clamping block (212) is greater than the outer circumference of the intermediate block (211); The second clamping portion (22) comprises a clamping sleeve (221), the clamping sleeve (221) being provided with a first clamping slot (2211) and a second clamping slot (2212) connected to the first clamping slot (2211), the same end of the first clamping slot (2211) and the second clamping slot (2212) passing through the clamping sleeve (221), the second clamping slot (2212) passing through the clamping sleeve (221) in a direction away from the cover module (1), the first clamping slot (2211) being used for plugging and matching with the clamping block (212), and the second clamping slot (2212) being used for plugging and matching with the intermediate block (211).

15. A fan assembly, characterized in that: include: Body (3); The fairing according to any one of claims 1 to 14, wherein the fairing is arranged at the air outlet of the machine body (3).

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