Wind type regulation and control module, fan head and fan

Abstract

The utility model discloses a wind type regulation and control module, fan head and fan, the wind type regulation and control module includes: a protection ring, the protection ring includes a guide wall and a mounting portion, the guide wall is annular, the mounting portion is used for mounting and fixing the wind type regulation and control module; the air channel adjusting part is installed on the protection ring, an air flow adjusting cavity is formed in the air channel adjusting part, the inner wall of the air flow adjusting cavity can deflect, and at least the air outlet end of the air flow adjusting cavity is located on the inner side of the guide wall. According to the air type regulation and control module, air flow can be directly exhausted after being blown out of the air channel adjusting piece, air resistance is reduced, the air volume is increased, the performance of the fan is enhanced, the air type regulation and control module is an independent module and can be integrally assembled to the fan, and the assembling efficiency of the fan is improved.

Description

Technical Field

[0001] This utility model relates to the field of household appliances, and in particular to a wind pattern control module, a fan head, and a fan. Background Technology

[0002] As people's living standards continue to rise, consumers' demands for fans are also increasing.

[0003] In related technologies, the fan is equipped with a wind pattern control mechanism for adjusting the airflow direction, and a front grille is provided on the air outlet side of the wind pattern control mechanism. When the fan is working, the airflow directed by the wind pattern control mechanism passes through the front grille and is blown out.

[0004] In the above technical solution, the front grille increases wind resistance and affects the performance of the fan. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a wind pattern control module, in which airflow can be directly discharged after being blown out from the air duct adjustment component, reducing wind resistance, increasing air volume, and enhancing fan performance. Furthermore, the wind pattern control module is an independent module that can be assembled into the fan as a whole, improving the fan assembly efficiency.

[0006] This utility model also proposes a fan head that includes the above-mentioned wind pattern control module.

[0007] This utility model also proposes a fan that includes the above-mentioned wind pattern control module.

[0008] A wind pattern control module according to an embodiment of the present invention includes: a protective ring, the protective ring including a guide wall and a mounting portion, the guide wall being formed in an annular shape to guide the airflow direction, and the mounting portion being used to install and fix the wind pattern control module; an air duct adjustment component, the air duct adjustment component being installed to the protective ring, the air duct adjustment component forming an airflow adjustment cavity, the airflow adjustment cavity having a first central axis, the inner wall of the airflow adjustment cavity being deflectable relative to the vertical plane of the first central axis under the action of the air duct adjustment component, and at least the air outlet end of the airflow adjustment cavity being located inside the guide wall in a direction parallel to the vertical plane; the wind pattern control module has a wind gathering mode and a wind dispersing mode, the inner wall of the airflow adjustment cavity being deflected at a larger angle relative to the vertical plane in the wind dispersing mode than in the wind gathering mode, so that the airflow is restricted by the inner wall of the airflow adjustment cavity in the wind gathering mode, while in the wind dispersing mode the airflow diffuses outward under the guidance of the inner wall of the airflow adjustment cavity.

[0009] According to the wind pattern control module of this utility model embodiment, by setting an air duct adjustment component, the wind pattern control module can adjust the air outlet range and air outlet intensity. When the wind pattern control module is in the wind gathering mode, the air outlet intensity is greater; when the wind pattern control module is in the wind dispersing mode, the air outlet area is larger. The air duct adjustment component can switch between the wind gathering mode and the wind dispersing mode to meet different user needs. The protective ring protects the air duct adjustment component, reducing the risk of collision or interference between external objects and the air duct adjustment component, reducing the risk of damage to the air duct adjustment component, and extending the service life of the wind pattern control module. In the direction parallel to the vertical plane, the protective ring is located on the outside of the air duct adjustment component, so the airflow can be directly discharged after being blown out from the air duct adjustment component, reducing wind resistance, increasing air volume, and enhancing fan performance. Furthermore, the wind pattern control module is an independent module that can be assembled into the fan as a whole, improving the assembly efficiency of the fan.

[0010] In some embodiments, the wind pattern control module further includes: an airflow regulator, which is installed on the protective ring; the airflow regulator and the duct regulator are spaced apart in the extension direction of the first central axis, the airflow regulator includes multiple layers of guide vanes arranged in the front-rear direction, the multiple layers of guide vanes include multiple front guide vanes and multiple rear guide vanes, the multiple front guide vanes are located in front of the air outlet of the multiple rear guide vanes and can rotate relative to each other, the multiple front guide vanes are spaced apart circumferentially, the multiple rear guide vanes are spaced apart circumferentially, in the wind-gathering mode, the multiple front guide vanes and the multiple rear guide vanes are arranged facing each other in the front-rear direction, in the wind-diffusing mode, the multiple front guide vanes and the multiple rear guide vanes are staggered in the circumferential direction.

[0011] In some embodiments, the protective ring includes an extension wall connected to one axial end of the guide wall, the extension wall extending inward in a direction parallel to the vertical plane; the duct adjuster and the airflow adjuster are located on both sides of the extension wall in the extension direction of the first central axis.

[0012] In some embodiments, the airflow regulating member includes a fixed ring and a rotating ring, the rotating ring being rotatable relative to the fixed ring, and one of the front guide vanes and the other of the rear guide vanes being disposed on the fixed ring and the other being disposed on the rotating ring.

[0013] In some embodiments, the air duct adjuster includes a plurality of blades arranged circumferentially along the first central axis, defining the airflow adjustment cavity between the plurality of blades, and each blade is provided with a pivot shaft clamped between the fixed ring and the extension wall.

[0014] In some embodiments, each of the blades is provided with a first drive unit, which cooperates with the rotating ring to drive the blades to swing when the rotating ring rotates.

[0015] In some embodiments, the rotating ring is provided with an elongated mating groove, and the first driving part is formed as a driving rod passing through the mating groove, the driving rod being movablely engaged with the mating groove.

[0016] In some embodiments, in a longitudinal section parallel to the first central axis, the air guiding surface on the inner side of the guide wall is formed as an inclined surface or an arc-shaped surface.

[0017] In some embodiments, in the longitudinal section, the air guide surface is formed as an inclined surface, and in the air dispersion mode, the angle between the inner wall of the airflow regulating cavity and the air guide surface is Q, wherein Q satisfies: -15°≤Q≤15°.

[0018] In some embodiments, on the air outlet side of the airflow regulating cavity and in a direction parallel to the first central axis, the first air outlet end of the protective ring protrudes outward from the second air outlet end of the air duct regulating member.

[0019] In some embodiments, in a direction parallel to the first central axis, the distance between the first air outlet and the second air outlet is H, where H satisfies: 0 < H ≤ 15 mm.

[0020] In some embodiments, the maximum distance between the air duct adjuster and the guide wall in the air dispersion mode is a, where a satisfies: 0 ≤ a ≤ 15 mm.

[0021] The fan head according to an embodiment of the present invention includes: a wind pattern control module, wherein the wind pattern control module is the wind pattern control module described in the above technical solution; and a drive fan, wherein the drive fan is located on the air inlet side of the wind pattern control module.

[0022] The fan according to the present invention includes the fan head described in the above technical solution; or includes the wind pattern control module described in the above technical solution.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic diagram of the wind pattern control module according to an embodiment of the present utility model. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the wind pattern control module according to an embodiment of the present utility model. Figure 2 ;

[0027] Figure 3 This is a schematic diagram of a fan according to an embodiment of the present utility model;

[0028] Figure 4 This is a diagram of the fan head. Figure 1 ;

[0029] Figure 5 yes Figure 4 A cross-sectional view of the central fan head;

[0030] Figure 6 This is a front view schematic diagram of a protective ring according to some embodiments of the present utility model;

[0031] Figure 7 yes Figure 6 Cross-sectional view of the middle protective ring;

[0032] Figure 8 It is the wind pattern control module in the wind gathering mode;

[0033] Figure 9 yes Figure 8 Cross-sectional view of the stroke-type control module;

[0034] Figure 10 It is the wind pattern control module in the diffused air mode;

[0035] Figure 11 yes Figure 10 A sectional view of the middle section of the structure;

[0036] Figure 12 This is a diagram of the fan head. Figure 2 ;

[0037] Figure 13 yes Figure 12 Enlarged view of section A;

[0038] Figure 14 This is a cross-sectional view of the protective ring according to other embodiments of the present invention;

[0039] Figure 15 This is a rear view schematic diagram of a protective ring according to some embodiments of the present utility model;

[0040] Figure 16 This is a rear view schematic diagram of the wind pattern control module according to an embodiment of the present utility model.

[0041] Figure label:

[0042] 100. Wind pattern control module; 200. Fan; 300. Fan head; 1. Air duct adjustment component; 11. Airflow adjustment chamber; 12. Oscillating blade; 121. First oscillating blade; 122. Second oscillating blade; 123. Third oscillating blade; 124. Pivot shaft; 125. Mounting arm; 126. Drive rod; 13. Air outlet; 2. Protective ring; 20. Air guide surface; 21. Extension wall; 211. Clearance groove; 212. First mounting groove; 22. Guide wall; 23. Mounting part; 3. Airflow adjustment component; 30. Guide blade; 31. Front guide blade; 32. Rear guide blade; 33. Fixing ring; 331. Rotating shaft; 332. Second mounting groove; 34. Rotating ring; 341. Guide part; 342. Fitting groove; 35. Stopping component; 4. Drive device; 5. Drive fan; 6. Housing. Detailed Implementation

[0043] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0044] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model 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 utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] The following is for reference. Figures 1-16The wind pattern control module 100 according to an embodiment of the present utility model is described.

[0047] Reference Figure 1 , Figure 3 and Figure 5 According to an embodiment of the present invention, the wind pattern control module 100 is adapted to be disposed on the air outlet side of the drive fan 5 of the fan 200, and serves to adjust the flow direction of the airflow. It should be noted that the airflow passing through the wind pattern control module 100 is usually spiral-shaped, and has circumferential velocity and axial velocity components.

[0048] Reference Figure 1 According to an embodiment of the present invention, the wind pattern control module 100 includes: a wind duct adjustment component 1, the wind duct adjustment component 1 forming an airflow adjustment cavity 11, the airflow adjustment cavity 11 having a first central axis, and the inner wall of the airflow adjustment cavity 11 being deflectable relative to the vertical plane of the first central axis under the action of the wind duct adjustment component 1, as shown in the figure. Figure 8 and Figure 10 The wind pattern control module 100 has a wind gathering mode and a wind dispersing mode. The inner wall of the airflow regulating cavity 11 deflects at a larger angle relative to the vertical plane in the wind dispersing mode than in the wind gathering mode, so that the airflow is restricted by the inner wall of the airflow regulating cavity 11 in the wind gathering mode, while in the wind dispersing mode the airflow is guided by the inner wall of the airflow regulating cavity 11 to diffuse outward.

[0049] It should be noted that the first central axis extends in the same direction as the airflow regulating cavity 11. The "vertical plane" does not refer to a plane extending in the vertical direction, but only to a plane perpendicular to the first central axis.

[0050] When airflow flows into the airflow regulating cavity 11, the inner wall of the airflow regulating cavity 11 can guide the airflow to adjust the airflow feel and airflow range when the airflow flows out from the air duct regulating component 1. When the air duct regulating component 1 is adjusted, the inner wall of the airflow regulating cavity 11 formed by the air duct regulating component 1 can deflect relative to the vertical plane of the first central axis, so that the regulating effect of the inner wall of the airflow regulating cavity 11 on the airflow can be adjusted.

[0051] The wind pattern control module 100 has a wind gathering mode and a wind dispersing mode. When the wind pattern control module 100 is in the wind gathering mode, the inner wall of the airflow regulating cavity 11 is arranged at an angle to the vertical plane, and the inner wall of the airflow regulating cavity 11 can regulate the airflow, so that the circumferential velocity component of the airflow is converted into the axial velocity component, thereby causing the airflow flowing out of the air duct regulating component 1 to converge towards the direction closer to the first central axis.

[0052] When the wind pattern control module 100 is in the wind dispersion mode, compared with the wind pattern control module 100 in the wind concentration mode, the angle formed between the inner wall of the air duct adjustment component 1 and the vertical plane is larger, so as to reduce the adjustment effect of the inner wall of the airflow adjustment cavity 11 on the circumferential velocity of the airflow. When the airflow flows out of the air duct adjustment component 1, it can still maintain a certain circumferential velocity, so that the airflow out presents a cone-like shape and the airflow is in a divergent state.

[0053] The wind pattern control module 100 in this embodiment of the invention, by setting the air duct adjustment component 1, allows the wind pattern control module 100 to adjust the air outlet range and air outlet intensity. When the wind pattern control module 100 is in the wind-gathering mode, the airflow from the air duct adjustment component 1 converges towards the first central axis, that is, the airflow is in a converging state when it flows out, and the air outlet intensity is greater. When the wind pattern control module 100 is in the wind-diffusing mode, the airflow from the air duct adjustment component 1 disperses away from the first central axis, that is, the airflow is in a dispersing state when it flows out, and the air outlet area is larger. The air duct adjustment component 1 can switch between the wind-gathering mode and the wind-diffusing mode, so that the wind pattern control module 100 has different working states. Users can adjust the working state of the wind pattern control module 100 according to actual needs to meet user requirements.

[0054] Reference Figure 5 , Figure 7 and Figure 8 According to the embodiment of the present utility model, the wind pattern control module 100 further includes a protective ring 2, which includes a guide wall 22 and a mounting part 23. The guide wall 22 is formed into a ring to guide the airflow direction, and the mounting part 23 is used to install and fix the wind pattern control module 100.

[0055] The air duct adjustment component 1 is installed to the protective ring 2, and in a direction parallel to the vertical plane, at least the air outlet end of the airflow adjustment cavity 11 is located inside the guide wall 22.

[0056] At least the air outlet end of the air duct adjustment component 1 is movably located within the guide wall 22. The guide wall 22 protects the air duct adjustment component 1, reducing the risk of collision or interference between external objects and the air duct adjustment component 1, reducing the risk of damage to the air duct adjustment component 1, and extending the service life of the air pattern control module 100.

[0057] To facilitate the distinction between the air outlet of the protective ring 2 and the air outlet of the duct adjustment component 1, the air outlet of the protective ring 2 is designated as the first air outlet, and the air outlet of the duct adjustment component 1 is designated as the second air outlet.

[0058] Because the second air outlet of the air duct adjuster 1 is located inside the guide wall 22, the airflow, after being blown out from the second air outlet of the air duct adjuster 1, still needs to pass through the first air outlet of the protective ring 2. In this embodiment of the present invention, the guide wall 22 is located outside the air duct adjuster 1 in the direction parallel to the vertical plane. That is to say, in the direction parallel to the first central axis, the protective ring 2 does not have a structure that obstructs the airflow from the air duct adjuster 1. Exemplarily, the first air outlet of the protective ring 2 is open, so that the airflow can be directly discharged after being blown out from the air duct adjuster 1, reducing wind resistance, increasing air volume, and enhancing the performance of the fan 200.

[0059] In this embodiment of the present invention, the air duct adjustment component 1 is installed to the protective ring 2, and the mounting part 23 of the protective ring 2 is adapted to connect with other parts of the fan 200 to fix the entire airflow control module 100. It should be noted that the other parts of the fan 200 mentioned above can be the outer shell 6 of the fan head 300 or a fixed structure inside the fan head 300, as long as it can fix the entire airflow control module.

[0060] According to the embodiment of this utility model, the wind pattern control module 100, by setting the air duct adjustment component 1, allows the wind pattern control module 100 to adjust the air outlet range and air outlet intensity. When the wind pattern control module 100 is in the wind gathering mode, the air outlet intensity is greater; when the wind pattern control module 100 is in the wind dispersing mode, the air outlet area is larger. The air duct adjustment component 1 can switch between the wind gathering mode and the wind dispersing mode to meet different user needs. The protective ring 2 protects the air duct adjustment component 1, reducing the risk of collision or interference between external objects and the air duct adjustment component 1, reducing the risk of damage to the air duct adjustment component 1, and extending the service life of the wind pattern control module 100. In the direction parallel to the vertical plane, the guide wall 22 is located outside the air duct adjustment component 1. After the airflow is blown out from the air duct adjustment component 1, it can be directly discharged, reducing wind resistance, increasing air volume, and enhancing the performance of the fan 200. Furthermore, the wind pattern control module 100 is an independent module that can be assembled into the fan 200 as a whole, improving the assembly efficiency of the fan 200.

[0061] Reference Figure 5 , Figure 7 and Figure 8 In some embodiments of this utility model, the air duct regulating component 1 includes a plurality of blades 12 arranged circumferentially along a first central axis, defining the aforementioned airflow regulating cavity 11 between the blades 12. Each blade 12 is rotatable relative to the protective ring 2, and at least a portion of each blade 12 is located within the guide wall 22. The air duct regulating component 1 in this embodiment of the utility model has a simple structure, reducing the cost of the wind pattern control module 100.

[0062] Specifically, multiple oscillating blades 12 are provided, and these blades 12 are evenly arranged circumferentially along the first central axis to construct the air duct regulating component 1 as a ring, with an air outlet 13 formed at the air outlet end of the air duct regulating component 1. The air inlet end of each oscillating blade 12 is rotatably connected to the protective ring 2, and when the air inlet end of the oscillating blade 12 rotates, the air outlet end of each oscillating blade 12 can move towards or away from the first central axis, thereby adjusting the area of ​​the air outlet 13 of the air duct regulating component 1 to reduce or increase the area of ​​the air outlet 13. This allows the air duct regulating component 1 to switch between a diffused airflow mode and a concentrated airflow mode. Figure 8 and Figure 10 In the air duct adjustment component 1, the area of ​​the air outlet 13 in the air gathering mode is smaller than that in the air dispersing mode.

[0063] Understandably, when the air inlet end of the oscillating blade 12 drives the air outlet end of the oscillating blade 12 to rotate towards the first central axis, the multiple oscillating blades 12 contract inward in the radial direction, the area of ​​the air outlet 13 is small, and the multiple oscillating blades 12 can regulate the airflow to convert the circumferential velocity of the airflow into the axial velocity, thereby resulting in a strong airflow intensity and a strong wind feel, realizing the wind-gathering mode of the air duct regulating component 1; when the air inlet end of the oscillating blade 12 drives the air outlet end of the oscillating blade 12 to rotate away from the first central axis, the multiple oscillating blades 12 expand outward in the radial direction, the area of ​​the air outlet 13 increases, and the interference of the oscillating blades 12 on the circumferential velocity of the airflow is small, the airflow can still maintain a certain circumferential velocity when it is discharged from the air duct regulating component 1, resulting in a large air outlet area and a gentle airflow, realizing the wind-dispersing mode of the air duct regulating component 1.

[0064] It should be noted that, as defined in the above embodiments, "at least a portion of each oscillating blade 12 is located within the guide wall 22" means that at least the air outlet end of the oscillating blade 12 is located within the guide wall 22. For example, in some embodiments, the oscillating blade 12 is rotatably connected to the outer side of the guide wall 22, with the air inlet end of the oscillating blade 12 located outside the guide wall 22 and the air outlet end of the oscillating blade 12 located inside the guide wall 22; in other embodiments, the oscillating blade 12 is rotatably connected to the inner side of the guide wall 22, meaning that the entire oscillating blade 12 is rotatably disposed within the guide wall 22.

[0065] Reference Figure 8 , Figure 9 and Figure 10 In some embodiments of this utility model, adjacent swing blades 12 have overlapping areas in the circumferential direction of the first central axis.

[0066] Specifically, the air inlet ends of multiple oscillating blades 12 are arranged sequentially at intervals in the circumferential direction, and the portions of adjacent oscillating blades 12 can overlap. For example, the oscillating blades 12 may include a first oscillating blade 121, a second oscillating blade 122, and a third oscillating blade 123, and the first oscillating blade 121, the second oscillating blade 122, and the third oscillating blade 123 are arranged sequentially adjacent to each other. In the arrangement direction of the multiple oscillating blades 12, one side of the first oscillating blade 121 can overlap the second oscillating blade 122, and the side of the second oscillating blade 122 away from the first oscillating blade 121 can overlap the third oscillating blade 123, thereby achieving an overlapping area between adjacent oscillating blades 12 to reduce the gap between adjacent oscillating blades 12, reduce air leakage of the air duct adjustment component 1, and ensure the air outlet effect of the wind pattern control module 100.

[0067] Reference Figure 9 and Figure 11 In some embodiments of this utility model, in the wind-gathering mode, the cross-sectional area of ​​the air duct adjustment component 1 gradually decreases in the direction toward the air outlet 13; and / or, in the wind-diffusing mode, the cross-sectional area of ​​the air duct adjustment component 1 gradually increases in the direction toward the air outlet 13.

[0068] Specifically, in the wind-gathering mode, in the direction towards the air outlet 13, the distance between the inner wall of the air duct adjustment component 1 and the first central axis gradually decreases, that is, the air duct adjustment component 1 gradually contracts and moves closer to the first central axis to guide the airflow to gradually concentrate, which is beneficial to increase the flow distance of the airflow in the air outlet direction and can enhance the intensity of the airflow, making the airflow more powerful when it flows out of the wind type control module 100.

[0069] It should be noted that "inner wall" refers to the side wall of the air duct adjustment component 1 that is close to the first central axis in the radial direction.

[0070] Specifically, in the air dispersion mode, the distance between the inner wall of the air duct adjustment component 1 and the first central axis gradually increases in the direction towards the air outlet 13, that is, the cross-sectional area of ​​the air duct adjustment component 1 gradually increases, so as to guide the airflow to gradually disperse, increase the flow range of the airflow in the radial direction, reduce the intensity of the airflow, and make the airflow more gentle when it flows out of the wind pattern control module 100.

[0071] Alternatively, in the wind-gathering mode, the distance between the inner wall of the air duct adjustment component 1 and the first central axis gradually decreases in the direction towards the air outlet 13; in the wind-diffusing mode, the distance between the inner wall of the air duct adjustment component 1 and the first central axis remains constant in the direction towards the air outlet 13.

[0072] Alternatively, in the air-gathering mode, the distance between the inner wall of the air duct adjustment component 1 and the first central axis remains constant in the direction towards the air outlet 13; in the air-diffusing mode, the distance between the inner wall of the air duct adjustment component 1 and the first central axis gradually increases in the direction towards the air outlet 13.

[0073] In some embodiments of this utility model, each swing blade 12 is formed as an arc-shaped plate.

[0074] Specifically, multiple blades 12 are arranged sequentially in the circumferential direction, and each blade 12 is formed as an arc-shaped plate. That is, in the radial direction, the inner wall of each blade 12 (i.e. the side wall of the blade 12 close to the first central axis in the radial direction) is arc-shaped and raised in the direction away from the first central axis, so as to reduce the influence of the shape of the inner wall of the air duct adjustment component 1 on the airflow, thereby reducing the wind resistance and ensuring the flow effect of the airflow.

[0075] Reference Figure 5 , Figure 12 and Figure 13 In some embodiments of this utility model, the air duct regulating component 1 includes a plurality of sway blades 12, which are arranged circumferentially along the first central axis. The plurality of sway blades 12 define the aforementioned airflow regulating cavity 11. Each sway blade 12 is rotatable relative to the protective ring 2. At least a portion of each sway blade 12 is located within the guide wall 22. The inner wall of the guide wall 22 is formed with a guide surface 20 for guiding the airflow to diffuse outward.

[0076] When the wind pattern control module 100 is in the wind dispersion mode, compared with the wind pattern control module 100 in the wind gathering mode, the angle formed between the inner wall of the air duct adjustment component 1 and the vertical plane is larger, and a gap appears between two adjacent swing blades 12. Some airflow will flow from the gap into the space between the guide wall 22 and the swing blades 12, and then be blown out from the first air outlet of the protective ring 2.

[0077] In this embodiment of the invention, the inner wall of the guide wall 22 is configured as a guide surface 20 for guiding the airflow outward. The airflow entering between the guide wall 22 and the oscillating blade 12 is blown out under the guidance of the guide surface 20, reducing the adjustment effect of the inner wall of the guide wall 22 on the circumferential velocity of the airflow. The airflow can still maintain a certain circumferential velocity when it flows out of the guide surface 20. In the air dispersion mode, the guide surface 20 cooperates with the air duct adjustment component 1, and the airflow flowing out of the guide surface 20 merges with the airflow flowing out of the airflow adjustment cavity 11, further enhancing the air dispersion effect of the wind pattern control module 100.

[0078] If the outer side of the air duct regulating component 1 is not provided with a guide wall 22, the airflow flowing out from the gap between two adjacent blades 12 cannot merge with the airflow in the airflow regulating cavity 11, resulting in a loss of air volume.

[0079] In other words, the protective ring 2 can not only protect the air duct adjustment component 1, reduce the risk of collision and interference between external objects and the air duct adjustment component 1, and reduce the risk of damage to the air duct adjustment component 1, but also guide some airflow and enhance the air dispersion effect of the air pattern control module 100 in the air dispersion mode.

[0080] It should be understood that when the wind pattern control module 100 is in the wind-gathering mode, compared to the wind pattern control module 100 in the wind-diffusing mode, the arrangement of the multiple blades 12 is more compact, the overlapping area of ​​two adjacent blades 12 is larger, and there is almost no gap between two adjacent blades 12. Therefore, the airflow blown out by the driving fan 5 will basically converge towards the direction closer to the first central axis under the guidance of the air duct adjustment component 1, thereby enhancing the airflow intensity. A very small amount of airflow flows into the space between the guide wall 22 and the blades 12, but this part of the airflow is too small to be considered.

[0081] In some embodiments of this utility model, the air guide surface 20 is formed as an inclined surface in a longitudinal section parallel to the first central axis.

[0082] In this embodiment of the utility model, the structure of the air guide surface 20 is simple and easy to form, which reduces the cost of the wind pattern control module 100.

[0083] In some further embodiments, the air guide surface 20 is formed as an inclined surface in a longitudinal section parallel to the first central axis, and the angle between the inner wall of the airflow regulating cavity 11 in the air dispersion mode and the air guide surface 20 is Q, where Q satisfies: -15°≤Q≤15°.

[0084] When the wind pattern control module 100 is in the air dispersion mode, a gap appears between two adjacent oscillating blades 12. Some airflow flows through this gap into the space between the guide wall 22 and the oscillating blades 12. The airflow entering the space between the guide wall 22 and the oscillating blades 12 is blown out under the guidance of the air guide surface 20 and then merges with the airflow flowing out of the airflow regulating cavity 11. To ensure the air dispersion effect of the wind pattern control module 100, the flow direction of the airflow flowing out of the air guide surface 20 is preferably parallel to the flow direction of the airflow flowing out of the airflow regulating cavity 11. That is, preferably, in the air dispersion mode, the inner wall of the airflow regulating cavity 11 is parallel to the air guide surface 20. At this time, the airflow flowing out of the air guide surface 20 and the airflow flowing out of the airflow regulating cavity 11 will not interfere with each other, and the air dispersion effect of the wind pattern control module 100 is optimal.

[0085] If the angle Q between the inner wall of the airflow regulating cavity 11 and the air guide surface 20 in the diffused air mode is greater than 15°, it will result in an excessively large distance between the air outlet end of the air guide surface 20 and the air outlet end of the airflow regulating cavity 11. Compared with the airflow flowing out of the airflow regulating cavity 11, the circumferential velocity component of the airflow flowing out of the air guide surface 20 is larger and the axial velocity component is smaller, which affects the axial velocity component of the overall airflow flowing out of the wind pattern control module 100 and shortens the air delivery distance of the wind pattern control module 100.

[0086] If the angle Q between the inner wall of the airflow regulating cavity 11 and the air guide surface 20 in the air dispersion mode is less than -15°, the distance between the air outlet end of the air guide surface 20 and the air outlet end of the airflow regulating cavity 11 will be too small. Compared with the airflow flowing out of the airflow regulating cavity 11, the circumferential velocity component of the airflow flowing out of the air guide surface 20 is smaller and the axial velocity component is larger, which affects the circumferential velocity component of the airflow flowing out of the airflow regulating cavity 11, that is, affects the dispersion of the airflow and reduces the air dispersion effect of the wind pattern control module 100.

[0087] Therefore, in this embodiment of the invention, the range of the angle Q between the inner wall of the airflow regulating cavity 11 and the air guide surface 20 in the airflow dispersion mode is limited, and Q satisfies: -15°≤Q≤15°. Within this range, the airflow flowing out of the air guide surface 20 has a smaller impact on the airflow flowing out of the airflow regulating cavity 11, and the wind pattern control module 100 has a better airflow dispersion effect.

[0088] In some specific embodiments, the included angle Q between the inner wall of the airflow regulating cavity 11 in the airflow dispersion mode and the air guide surface 20 is 5°. In some other embodiments, the included angle Q between the inner wall of the airflow regulating cavity 11 in the airflow dispersion mode and the air guide surface 20 can also be other degrees such as -15°, -5°, 7°, 12°, etc.

[0089] In some of the above embodiments, the air guide surface 20 is formed as an inclined surface in a longitudinal section parallel to the first central axis. (Refer to...) Figure 14 In other embodiments, the air guide surface 20 can also be formed as an arc-shaped surface on the longitudinal section parallel to the first central axis. In this embodiment of the present invention, the air guide surface 20 is formed as an arc-shaped surface to reduce the influence of the shape of the air guide surface 20 on the airflow, thereby reducing wind resistance and ensuring the flow effect of the airflow.

[0090] Reference Figure 5 In some embodiments of this utility model, on the air outlet side of the airflow regulating cavity 11 and in a direction parallel to the first central axis, the first air outlet end of the protective ring 2 protrudes outward from the second air outlet end of the air duct regulating member 1.

[0091] In this embodiment of the utility model, the second air outlet of the air duct adjuster 1 is located inside the protective ring 2, and the second air outlet of the air duct adjuster 1 is a certain distance from the first air outlet of the protective ring 2, which further reduces the risk of collision and interference between external objects and the air duct adjuster 1, reduces the risk of damage to the air duct adjuster 1, and extends the service life of the wind pattern control module 100.

[0092] In some preferred embodiments, the distance between the first air outlet and the second air outlet in a direction parallel to the first central axis is H, where H satisfies: 0 < H ≤ 15 mm.

[0093] If the distance H between the first air outlet and the second air outlet is greater than 15mm, the first air outlet of the protection ring 2 will protrude too far outward from the second air outlet of the air duct adjustment component 1, increasing the overall space occupied by the wind pattern control module 100, which is not conducive to the miniaturization of the fan 200.

[0094] In this embodiment of the utility model, the range of the distance H between the first air outlet and the second air outlet is limited, so that the protective ring 2 can protect the air duct adjustment component 1 well, while also keeping the overall size of the wind pattern control module 100 within a suitable range, so as not to cause the fan 200 structure to be bulky.

[0095] In some of the above embodiments, on the air outlet side of the airflow regulating cavity 11 and in a direction parallel to the first central axis, the first air outlet end of the protective ring 2 protrudes outward from the second air outlet end of the air duct regulating member 1. (Refer to...) Figure 9 In other embodiments, on the air outlet side of the airflow regulating cavity 11 and in a direction parallel to the first central axis, the first air outlet end of the protective ring 2 is flush with the second air outlet end of the air duct regulating member 1, that is, the distance H between the first air outlet end and the second air outlet end is 0. As long as the second air outlet end of the air duct regulating member 1 is located within the protective ring 2, it is within the protection scope of this utility model.

[0096] Reference Figure 13 In some embodiments of this utility model, in the air distribution mode, the maximum distance between the air duct adjustment component 1 and the guide wall 22 is a, where a satisfies: 0≤a≤15mm.

[0097] In the air dispersion mode, the maximum distance a between the air duct adjustment component 1 and the guide wall 22 should be as small as possible. When the guide wall 22 and the air duct adjustment component 1 are completely in contact (i.e., when a is 0), the airflow will not be able to move between the air duct adjustment component 1 and the guide wall 22. At this time, all the airflow moves in the airflow adjustment cavity 11, and the air dispersion effect of the air duct adjustment component 1 is ideal.

[0098] However, in order to prevent mechanical injury (such as pinching hands), in some embodiments, a gap is left between the air duct adjustment component 1 and the guide wall 22, that is, the maximum distance a between the air duct adjustment component 1 and the guide wall 22 is greater than 0. The maximum distance a between the air duct adjustment component 1 and the guide wall 22 should not be too large. The larger the gap between the air duct adjustment component 1 and the guide wall 22, the more airflow flows between the air duct adjustment component 1 and the guide wall 22, the smaller the influence of the guide wall 22 on this part of the airflow, and the more uncontrollable the movement direction and speed of the airflow flowing out of the wind pattern control module 100 as a whole.

[0099] Therefore, in this embodiment of the invention, the maximum distance a between the air duct adjustment component 1 and the guide wall 22 is limited to 0≤a≤15mm, which reduces the risk of loss of control over the direction and speed of airflow and ensures the airflow dispersion effect of the wind pattern control module 100 in the air dispersion mode.

[0100] Reference Figure 5 , Figure 9 and Figure 11 In some embodiments of this utility model, the wind pattern control module 100 further includes: an airflow regulating component 3. In the extension direction of the first central axis, the airflow regulating component 3 and the air duct regulating component 1 are spaced apart. The airflow regulating component 3 includes multiple layers of guide vanes 30 arranged in the front-to-back direction. The multiple layers of guide vanes 30 include multiple front guide vanes 31 and multiple rear guide vanes 32. The multiple front guide vanes 31 are located in front of the air outlet of the multiple rear guide vanes 32 and can rotate relative to each other. The multiple front guide vanes 31 are spaced apart in the circumferential direction, and the multiple rear guide vanes 32 are spaced apart in the circumferential direction. In the wind-gathering mode, the multiple front guide vanes 31 and the multiple rear guide vanes 32 are arranged facing each other in the front-to-back direction. In the wind-diffusing mode, the multiple front guide vanes 31 and the multiple rear guide vanes 32 are staggered in the circumferential direction.

[0101] It should be noted that the multi-layer guide vane 30 has at least two layers of guide vanes 30, that is, the multi-layer guide vane 30 can be two, three, or four layers of guide vanes 30 arranged in the front-to-back direction. It should also be noted that each layer of guide vane 30 includes multiple guide vanes 30 arranged at intervals along the circumference, that is, multiple front guide vanes 31 are located in the same layer, and multiple rear guide vanes 32 are located in the same layer.

[0102] Specifically, multiple front guide vanes 31 are arranged sequentially at intervals along the circumferential direction, with a front gap between every two adjacent front guide vanes 31 to allow airflow to pass through. Multiple rear guide vanes 32 are arranged sequentially at intervals along the circumferential direction, with a rear gap between every two adjacent rear guide vanes 32 to allow airflow to pass through. The front guide vanes 31 and rear guide vanes 32 are arranged along the extension direction of the first central axis. The front guide vanes 31 are located at the air outlet end of the rear guide vanes 32. Airflow flows from the air inlet end of the rear guide vanes 32, through the rear guide vanes 32, and through the air outlet end of the rear guide vanes 32 into the gap between the multiple front guide vanes 31. Both the rear guide vanes 32 and the front guide vanes 31 can guide the airflow, thereby adjusting the direction of airflow.

[0103] Furthermore, the multiple front guide vanes 31 and the multiple rear guide vanes 32 can move relative to each other to facilitate the airflow regulating component 3 switching between airflow concentration mode and airflow dispersion mode, see reference. Figure 8 and Figure 9In the wind-gathering mode, multiple front guide vanes 31 and multiple rear guide vanes 32 are arranged one-to-one along the direction of the first central axis. At this time, the front gap and the rear gap are directly opposite each other. After the airflow flows into the rear gap and the rear guide vane 32 guides the airflow, the airflow continues to flow into the front gap, which further guides the airflow. The circumferential velocity of the airflow is converted into the axial velocity, so that the airflow can be concentrated towards the first central axis. The front gap and the rear gap form a continuous flow space. The front guide vanes 31 and the rear guide vanes 32 can continuously guide the airflow to continuously adjust the airflow, improve the rectification effect of the airflow regulating component 3 on the airflow, improve the effect of converting the circumferential velocity of the airflow into the axial velocity, reduce the flow area of ​​the airflow in the radial direction when it flows out of the airflow regulating component 3, so that the airflow after flowing out is similar to a cylinder, and the axial velocity of the airflow when it flows out is large, resulting in a large airflow intensity.

[0104] Reference Figure 10 and Figure 11 In the diffused airflow mode, the orthographic projection of each rear guide vane 32 is located between the orthographic projections of every two adjacent front guide vanes 31 in the extension direction of the first central axis. That is, the rear guide vanes 32 are arranged opposite to the front gap in the axial direction, thereby achieving the staggered arrangement of multiple front guide vanes 31 and multiple rear guide vanes 32 in the circumferential direction. The staggered arrangement of the front gap and the rear gap means that the front guide vanes 31 and the rear guide vanes 32 cannot continuously guide the airflow. Compared with the concentrated airflow mode, the guiding time of the rear guide vane 32 for the airflow is short when the airflow flows into the rear gap. Similarly, the guiding time of the front guide vane 31 for the airflow is short when the airflow flows into the front gap. The overall rectification effect of the airflow regulating component 3 on the airflow is reduced. When the airflow flows through the airflow regulating component 3, the circumferential velocity of the airflow can be maintained, so that the airflow is generally conical when it flows out of the airflow regulating component 3, ensuring the divergent state of the airflow when it flows out.

[0105] It should be noted that the dimension of the front clearance in the direction parallel to the first central axis is the length dimension of the front clearance, and the dimension of the rear clearance in the direction parallel to the first central axis is the length dimension of the rear clearance.

[0106] This invention incorporates an airflow regulating component 3, which includes a front guide vane 31 and a rear guide vane 32. In the airflow converging mode, the front guide vane 31 and the rear guide vane 32 are positioned opposite each other in the front-rear direction, allowing for continuous airflow guidance. This enhances the guiding effect of the airflow regulating component 3, improves the conversion of the circumferential velocity component of the airflow into the axial velocity component, reduces the radial flow area of ​​the airflow as it exits the airflow regulating component 3, and results in a high axial velocity at the exit, causing the airflow to converge upon exiting. In the first state, the airflow intensity is high; in the second state, the airflow regulating component 3 has a small rectification effect on the airflow. When the airflow flows through the airflow regulating component 3, it can maintain the circumferential velocity of the airflow, so that the airflow can be in a conical shape when it flows out of the airflow regulating component 3, ensuring the divergent state of the airflow when it flows out. Thus, the airflow control module 100 can adjust the airflow range and airflow intensity. Moreover, the working state of the airflow control module 100 can be switched. Users can adjust the working state of the airflow control module 100 according to actual usage needs to meet different user requirements.

[0107] In some embodiments, the air duct regulator 1 is located on the air outlet side of the airflow regulator 3.

[0108] In the wind-gathering mode, after the airflow regulator 3 converges and adjusts the airflow, the airflow flows to the air duct regulator 1. The air duct regulator 1 can further converge and rectify the airflow to ensure the gathering effect when the airflow flows out of the wind control mechanism. In the wind-diffusing mode, the spiral airflow maintains a circumferential velocity after passing through the airflow regulator 3. After the airflow flows out of the airflow regulator 3, the air duct regulator 1 can further maintain the circumferential velocity of the airflow to ensure the dispersion effect when the airflow flows out of the wind control module 100.

[0109] Therefore, by cooperating with the airflow regulating component 1 and the airflow regulating component 3, the guiding effect of the airflow control module 100 on the airflow is improved, thereby improving the airflow regulation effect of the airflow control mechanism, resulting in a significant difference in the airflow feel, which is conducive to meeting different user needs and improving the user experience.

[0110] In some embodiments of this utility model, both the front guide vane 31 and the rear guide vane 32 are formed into an arc shape.

[0111] Specifically, the cross-section of the front guide vane 31 perpendicular to the first central axis is formed in an arc shape, and similarly, the cross-section of the rear guide vane 32 perpendicular to the first central axis is formed in an arc shape to reduce the wind resistance when the airflow passes through the front guide vane 31 and the rear guide vane 32, thus ensuring the airflow effect. Of course, it is understandable that the front guide vane 31 and the rear guide vane 32 can also be formed in other shapes, such as in a straight line.

[0112] Reference Figure 5 , Figure 9 and Figure 11 In some embodiments of this utility model, the airflow regulating member 3 includes a fixed ring 33 and a rotating ring 34. The rotating ring 34 is rotatable relative to the fixed ring 33. One of the front guide vanes 31 and the rear guide vanes 32 is disposed on the fixed ring 33 and the other is disposed on the rotating ring 34.

[0113] Specifically, the fixed ring 33 and the rotating ring 34 are used to provide mounting positions for the front guide vane 31 and the rear guide vane 32, respectively. An annular mounting space is formed in the fixed ring 33, and an annular arrangement space is formed in the rotating ring 34. The annular mounting space and the annular arrangement space are arranged opposite to each other in the axial direction. The front guide vane 31 can be mounted on the fixed ring 33, and the rear guide vane 32 can be mounted on the rotating ring 34. Of course, it can be understood that the front guide vane 31 can also be mounted on the rotating ring 34, and the rear guide vane 32 can be mounted on the fixed ring 33, as long as the front guide vane 31 and the rear guide vane 32 can rotate relative to each other.

[0114] Furthermore, the rotating ring 34 can rotate relative to the fixed ring 33, thereby allowing relative rotation between the front guide vane 31 and the rear guide vane 32. When it is necessary to adjust the airflow state, the rotating ring 34 can be driven to rotate, causing relative rotation between the front guide vane 31 and the rear guide vane 32, thereby adjusting the position between the front guide vane 31 and the rear guide vane 32, so that the front guide vane 31 and the rear guide vane 32 are directly opposite each other in the front-to-back direction or are staggered in the circumferential direction, thereby adjusting the working state of the airflow regulating component 3.

[0115] In some embodiments, at least a portion of the protective ring 2 is located between the airflow regulator 3 and the duct regulator 1 in the extending direction of the first central axis, so as to realize the connection between the protective ring 2, the airflow regulator 3 and the duct regulator 1, thereby improving the tightness of the assembly of the wind pattern control module 100.

[0116] Reference Figure 5 , Figure 7 and Figure 9 In some specific embodiments, the protective ring 2 includes an extension wall 21 and a guide wall 22. The extension wall 21 extends in a radial direction perpendicular to the first central axis and is located between the airflow regulator 3 and the duct regulator 1. The guide wall 22 is connected to the side of the extension wall 21 away from the first central axis. The guide wall 22 extends in the extension direction of the first central axis and in a direction away from the first central axis. The guide wall 22 is fitted over the duct regulator 1 to protect the duct regulator 1. The inner wall of the guide wall 22 is formed as the aforementioned air guiding surface 20.

[0117] Reference Figure 5 , Figure 6 and Figure 7 The mounting part 23 is connected to the side of the guide wall 22 away from the extension wall 21. The mounting part 23 extends toward the front end face of the housing 6 and is adapted to overlap and cooperate with the front end face of the housing 6.

[0118] In this embodiment of the utility model, the gap between the guide wall 22 and the outer casing 6 is sealed by the mounting part 23, which reduces the possibility of external debris entering the interior of the outer casing 6, reduces the risk of damage to the fan 200, and extends the service life of the fan 200.

[0119] It should be noted that the connection between the mounting part 23 and the outer shell 6 can be by screwing, snapping, or other fasteners, as long as the mounting part 23 is fixed to the outer shell 6. This utility model does not limit this.

[0120] Reference Figure 6 , Figure 8 and Figure 9 In some further embodiments, the oscillating blade 12 is provided with a pivot shaft 124, which is clamped between the airflow regulating member 3 and the extension wall 21. The side of the extension wall 21 facing the airflow regulating member 3 is provided with a first mounting groove 212; the side of the airflow regulating member 3 facing the extension wall 21 is provided with a second mounting groove 332, and the pivot shaft 124 is rotatably disposed between the first mounting groove 212 and the second mounting groove 332.

[0121] Reference Figure 8 , Figure 9 and Figure 15 The oscillating blade 12 is also provided with a mounting arm 125 connected to the pivot shaft 124. The extension wall 21 is provided with a clearance groove 211 to avoid the mounting arm 125. One end of the mounting arm 125 is connected to the oscillating blade 12, and the other end passes through the clearance groove 211 to connect to the pivot shaft 124. The pivot shaft 124 is rotatably disposed between the airflow regulating member 3 and the extension wall 21 to realize the rotatability of the oscillating blade 12.

[0122] Each blade 12 is connected to two mounting arms 125, and the two ends of the pivot shaft 124 are respectively connected between the two mounting arms 125, which further improves the stability of the blade 12.

[0123] Specifically, in some specific embodiments, the front guide vane 31 is mounted on the fixed ring 33, and the rear guide vane 32 is mounted on the rotating ring 34. That is, the fixed ring 33 is located between the extension wall 21 of the protective ring 2 and the rotating ring 34. The pivot shaft 124 of the swing vane 12 is rotatably located between the extension wall 21 and the fixed ring 33. The extension wall 21 and the fixed ring 33 are connected by fasteners, which are screws or bolts. The connection is highly stable and inexpensive.

[0124] Reference Figure 9In some specific embodiments, the fixed ring 33 is fixed to the extension wall 21 by screws, the pivot shaft 124 of the oscillating blade 12 is rotatably disposed between the extension wall 21 and the fixed ring 33, the fixed ring 33 is provided with a rotating shaft 331 on the side away from the extension wall 21, and a part of the rotating ring 34 is sleeved on the rotating shaft 331 to realize the rotation of the rotating ring 34 relative to the fixed ring 33.

[0125] Reference Figure 5 In some further embodiments, a stop member 35 is fixed on the rotating shaft 331 by fasteners. The stop member 35 stops the rotating ring 34 on the side away from the fixed ring 33 to restrict the rotating ring 34 from disengaging from the rotating shaft 331, thus ensuring the stability of the rotation of the rotating ring 34.

[0126] Reference Figure 9 and Figure 16 In order to improve the smoothness of the wind pattern control module 100 switching between wind gathering mode and wind dispersing mode, in some embodiments, the rotation of the oscillating blade 12 is coordinated with the rotation of the rotating ring 34.

[0127] Specifically, the oscillating blade 12 is connected to a drive rod 126, which is located on the side of the mounting arm 125 away from the oscillating blade 12.

[0128] The rotating ring 34 is provided with a plurality of guide portions 341 arranged circumferentially at intervals. The guide portions 341 extend radially away from the rotating ring 34 to face the drive rod 126. An inclined mating groove 342 is formed on the guide portion 341, with one end of the mating groove 342 radially close to the rotating ring 34 and the other end radially away from the rotating ring 34. The drive rod 126 passes through the mating groove 342. When the rotating ring 34 rotates relative to the fixed ring 33, the inner wall of the mating groove 342 can press against the drive rod 126, causing it to slide within the mating groove 342. Because the mating groove 342 is arranged at an angle, the drive rod 126 slides within the mating groove 342. At the same time, the drive rod 126 moves at an angle in the radial direction toward or away from the first central axis. For example, the mating groove 342 can drive the end of the drive rod 126 away from the swing blade 12 to move in the radial direction toward the first central axis. At this time, the air outlet end of the swing blade 12 rotates away from the first central axis. When the mating groove 342 drives the end of the drive rod 126 away from the swing blade 12 to move in the radial direction away from the first central axis, the air outlet end of the swing blade 12 rotates toward the first central axis.

[0129] Specifically, when the drive rod 126 slides in the mating groove 342 to the end closest to the first central axis, the drive rod 126 drives the air outlet end of the swing blade 12 to move away from the first central axis. The air outlet end of the swing blade 12 rotates to the maximum distance from the first central axis. At this time, the air outlet 13 of the air duct adjustment component 1 has the largest area, and the air duct adjustment component 1 is in the air dispersion mode.

[0130] When the drive rod 126 slides in the mating groove 342 to the end furthest from the first central axis, the drive rod 126 drives the air outlet end of the swing blade 12 to move closer to the first central axis. The air outlet end of the swing blade 12 rotates to the point where the distance from the first central axis is the smallest. At this time, the air outlet 13 of the air duct adjustment component 1 has the smallest area, and the air duct adjustment component 1 is in the air gathering mode.

[0131] Reference Figure 16 In some embodiments of this utility model, the wind pattern control module 100 further includes a drive device 4, which is connected to the rotating ring 34 to drive the rotating ring 34 to rotate, thereby realizing the relative rotation of the front guide vane 31 and the rear guide vane 32 and the rotation of the swing blade 12 to adjust the working state of the wind pattern control module 100. The drive device 4 can realize manual or automatic driving of the rotating ring 34.

[0132] Specifically, when the rotating ring 34 is manually driven, the driving device 4 can be configured as a lever. The lever is set on the rotating ring 34 and extends radially away from the first central axis. The user can manually drive the lever to make the rotating ring 34 rotate relative to the fixed ring 33, thereby realizing the relative rotation of the front guide vane 31 and the rear guide vane 32 and the rotation of the swing blade 12, so that the wind pattern control module 100 can switch between wind gathering mode and wind dispersing mode, and realize the user to manually adjust the working state of the wind pattern control module 100.

[0133] When the rotating ring 34 is automatically driven, a drive unit is provided on the rotating ring 34, and the drive device 4 can be constructed as a drive motor. The output end of the drive motor is connected to the drive unit to drive the rotating ring 34 to rotate.

[0134] It is understood that the drive device 4 can be arranged on the outside of the rotating ring 34, or the drive device 4 can be arranged inside the rotating ring 34, as long as the drive device 4 can drive the rotating ring 34. The specific arrangement is not limited here.

[0135] Reference Figure 1 , Figure 3 and Figure 5According to an embodiment of the present utility model, the fan head 300 includes: a wind pattern control module 100 and a drive fan 5, wherein the wind pattern control module 100 is the wind pattern control module 100 in the above technical solution, and the drive fan 5 is located on the air inlet side of the wind pattern control module 100.

[0136] According to the embodiment of the present invention, the fan head 300, by setting the air duct adjustment component 1, allows the airflow control module 100 to adjust the airflow range and airflow intensity. When the airflow control module 100 is in the wind-gathering mode, the airflow intensity is high; when the airflow control module 100 is in the wind-diffusing mode, the airflow area is large. The air duct adjustment component 1 can switch between the wind-gathering mode and the wind-diffusing mode to meet different user needs. The protective ring 2 protects the air duct adjustment component 1, reducing the risk of collision or interference between external objects and the air duct adjustment component 1, reducing the risk of damage to the air duct adjustment component 1, and extending the service life of the airflow control module 100. In the direction parallel to the vertical plane, the protective ring 2 is located on the outside of the air duct adjustment component 1. After the airflow is blown out from the air duct adjustment component 1, it can be directly discharged, reducing wind resistance, increasing airflow, and enhancing the performance of the fan 200.

[0137] Reference Figure 1 , Figure 3 and Figure 5 The fan 200 according to the present invention includes: the fan head 300 in the above technical solution; or the fan 200 according to the present invention includes: the wind pattern control module 100 in the above technical solution.

[0138] According to the embodiment of this utility model, the fan, by setting the air duct adjustment component 1, allows the airflow control module 100 to adjust the airflow range and airflow intensity. When the airflow control module 100 is in the wind-gathering mode, the airflow intensity is high; when the airflow control module 100 is in the wind-diffusing mode, the airflow area is large. The air duct adjustment component 1 can switch between the wind-gathering mode and the wind-diffusing mode to meet different user needs. The protective ring 2 protects the air duct adjustment component 1, reducing the risk of collision or interference between external objects and the air duct adjustment component 1, reducing the risk of damage to the air duct adjustment component 1, and extending the service life of the airflow control module 100. In the direction parallel to the vertical plane, the protective ring 2 is located on the outside of the air duct adjustment component 1. After the airflow is blown out from the air duct adjustment component 1, it can be directly discharged, reducing wind resistance, increasing airflow, and enhancing the performance of the fan 200.

[0139] Reference Figure 1 , Figure 4 and Figure 5In some embodiments, the fan 200 further includes: a housing 6, at least the drive fan 5 is disposed within the housing 6, the front end face of the housing 6 is open, and a portion of the protective ring 2 extends to overlap and engage with the front end face of the housing 6.

[0140] Specifically, the protective ring 2 includes an extension wall 21 and a guide wall 22. The extension wall 21 extends in a radial direction perpendicular to the first central axis. The guide wall 22 is connected to the side of the extension wall 21 away from the first central axis. The guide wall 22 extends in the extension direction of the first central axis and in a direction away from the first central axis. The guide wall 22 is fitted over the air duct adjustment member 1 to protect the air duct adjustment member 1.

[0141] Reference Figure 5 , Figure 6 and Figure 7 In this embodiment of the utility model, the protective ring 2 further includes a mounting part 23, which is connected to the side of the guide wall 22 away from the extension wall 21. The mounting part 23 extends toward the front end face of the outer shell 6 and extends to overlap and cooperate with the front end face of the outer shell 6.

[0142] In this embodiment of the utility model, the gap between the guide wall 22 and the outer casing 6 is sealed by the mounting part 23, which reduces the possibility of external debris entering the interior of the outer casing 6, reduces the risk of damage to the fan 200, and extends the service life of the fan 200.

[0143] It should be noted that the connection between the mounting part 23 and the outer shell 6 can be by screwing, snapping, or other fasteners, as long as the mounting part 23 is fixed to the outer shell 6. This utility model does not limit this.

[0144] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0145] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A wind pattern control module, characterized in that, include: The protective ring includes a guide wall and a mounting part. The guide wall is formed into a ring to guide the airflow direction, and the mounting part is used to install and fix the wind pattern control module. A duct adjustment component is installed on the protective ring. The duct adjustment component forms an airflow adjustment cavity. The airflow adjustment cavity has a first central axis. The inner wall of the airflow adjustment cavity can be deflected relative to the vertical plane of the first central axis under the action of the duct adjustment component. In a direction parallel to the vertical plane, at least the air outlet end of the airflow adjustment cavity is located inside the guide wall. The wind pattern control module has a wind gathering mode and a wind dispersing mode. The inner wall of the airflow regulating cavity is deflected at a greater angle relative to the vertical plane in the wind dispersing mode than in the wind gathering mode, so that the airflow is restricted by the inner wall of the airflow regulating cavity in the wind gathering mode, while in the wind dispersing mode the airflow is guided by the inner wall of the airflow regulating cavity to diffuse outward.

2. The wind pattern control module according to claim 1, characterized in that, Also includes: An airflow regulator, wherein the airflow regulator is installed to the protective ring; The airflow regulating component and the duct regulating component are spaced apart in the extension direction of the first central axis. The airflow regulating component includes multiple layers of guide vanes arranged in the front-to-back direction. The multiple layers of guide vanes include multiple front guide vanes and multiple rear guide vanes. The multiple front guide vanes are located in front of the air outlet of the multiple rear guide vanes and can rotate relative to each other. The multiple front guide vanes are spaced apart circumferentially, and the multiple rear guide vanes are spaced apart circumferentially. In the air-gathering mode, the multiple front guide vanes and the multiple rear guide vanes are arranged facing each other in the front-to-back direction. In the air-diffusing mode, the multiple front guide vanes and the multiple rear guide vanes are staggered in the circumferential direction.

3. The wind pattern control module according to claim 2, characterized in that, The protective ring includes an extension wall connected to one axial end of the guide wall, and the extension wall extends inward in a direction parallel to the vertical plane. In the direction of extension of the first central axis, the duct adjustment component and the airflow adjustment component are located on both sides of the extension wall.

4. The wind pattern control module according to claim 3, characterized in that, The airflow regulating component includes a fixed ring and a rotating ring, the rotating ring being rotatable relative to the fixed ring, and one of the front guide vanes and the other of the rear guide vanes being disposed on the fixed ring and the other being disposed on the rotating ring.

5. The wind pattern control module according to claim 4, characterized in that, The air duct regulating component includes multiple blades arranged circumferentially along the first central axis, defining the airflow regulating cavity between the multiple blades, and each blade is provided with a pivot shaft, which is clamped between the fixed ring and the extension wall.

6. The wind pattern control module according to claim 5, characterized in that, Each of the blades is provided with a first drive unit, which cooperates with the rotating ring to drive the blades to swing when the rotating ring rotates.

7. The wind pattern control module according to claim 6, characterized in that, The rotating ring is provided with an elongated mating groove, and the first driving part is formed as a driving rod passing through the mating groove, and the driving rod moves and engages with the mating groove.

8. The wind pattern control module according to claim 1, characterized in that, On a longitudinal section parallel to the first central axis, the air guiding surface on the inner side of the guide wall is formed as an inclined surface or an arc-shaped surface.

9. The wind pattern control module according to claim 8, characterized in that, In the longitudinal section, the air guide surface is formed as an inclined surface, and in the air dispersion mode, the angle between the inner wall of the airflow regulating cavity and the air guide surface is Q, where Q satisfies: -15°≤Q≤15°.

10. The wind pattern control module according to claim 1, characterized in that, On the air outlet side of the airflow regulating cavity and in a direction parallel to the first central axis, the first air outlet end of the protective ring protrudes outward from the second air outlet end of the air duct regulating member.

11. The wind pattern control module according to claim 10, characterized in that, In a direction parallel to the first central axis, the distance between the first air outlet and the second air outlet is H, where H satisfies: 0 < H ≤ 15 mm.

12. The wind pattern control module according to any one of claims 1-11, characterized in that, In the air distribution mode, the maximum distance between the air duct adjustment component and the guide wall is a, where a satisfies: 0≤a≤15mm.

13. A fan head, characterized in that, include: A wind pattern control module, wherein the wind pattern control module is the wind pattern control module according to any one of claims 1-12; A drive fan is located on the air inlet side of the airflow control module.

14. A fan, characterized in that, Including the fan head according to claim 13; or Includes the wind pattern control module according to any one of claims 1-12.

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