Air outlet grille, air supply shell, air supply device and air supply equipment

Abstract

The invention relates to an air outlet grid, an air supply shell, an air supply device and air supply equipment, the air outlet grid bends and extends around a central axis extending in the first direction, the air outlet grid comprises a plurality of blades arranged at intervals in the first direction, and a grid air outlet is formed between every two adjacent blades; wherein the air outlet grating is provided with a virtual reference surface perpendicular to the first direction, and the air outlet grating is symmetrically arranged by taking the virtual reference surface as a symmetric surface; at least part of the blades obliquely extend in the direction opposite to the virtual reference face from the ends close to the central axis to the ends away from the central axis. The blades of the air outlet grille are of the discrete gradually-expanding structure, and at least part of the blades located on the two sides of the virtual reference face obliquely extend outwards, so that the air supply range of the air supply device provided with the air outlet grille is enlarged under the condition that the overall area of the air outlet grille is not changed, and the better cooling effect is achieved; and the head shaking frequency of the air supply device does not need to be increased.

Description

Technical Field

[0001] This application relates to the field of cooling equipment technology, and in particular to an air outlet grille, an air supply shell, an air supply device, and an air supply equipment. Background Technology

[0002] With the development of technology and the improvement of living standards, people's requirements for the comfort of their living environment are also gradually increasing. As an evaporative cooling device that falls between a fan and an air conditioner, evaporative air coolers are widely used in people's production and daily life, effectively improving their living and working environments. An evaporative air cooler typically includes a water tank, a water pump, a humidification module, and a fan. The water pump draws water from the tank and distributes it to the humidification module to form a water film. External airflow is drawn in at high speed by the fan, causing the water on the water film to rapidly evaporate from a liquid state to a gaseous state, absorbing heat from the airflow. The cool air is then delivered at high speed through the air vents, achieving the cooling function.

[0003] Most existing air purifiers have a sweeping function to expand the air delivery range. However, due to structural defects, the air outlet is narrow and the air delivery area is limited. When the sweeping function is not turned on, the air delivery range is too small. When the sweeping function is turned on, the air purifier needs a certain cycle to rotate, so it can only deliver air to a fixed position for a short time intermittently, which affects the user experience of the air purifier. Summary of the Invention

[0004] This application addresses the problem of the limited air delivery range of air coolers by providing an air outlet grille, an air delivery housing, an air delivery device, and an air delivery equipment.

[0005] According to one aspect of this application, an air outlet grille is provided, the air outlet grille extending about a central axis extending in a first direction, the air outlet grille including a plurality of blades spaced apart in the first direction, and an air outlet grille being formed between two adjacent blades.

[0006] The air outlet grille has a virtual reference surface perpendicular to the first direction, and the air outlet grille is symmetrically arranged with the virtual reference surface as the symmetrical surface; at least a portion of the blades extend obliquely from one end near the central axis to one end away from the central axis in a direction away from the virtual reference surface.

[0007] In one embodiment, the blade is tilted at an angle of 0° to 45° relative to the virtual reference surface from one end near the central axis to the other end away from the central axis.

[0008] In one embodiment, in every two adjacent blades located on either side of the virtual reference surface, the blade farther from the virtual reference surface has an inclination angle relative to the virtual reference surface that is greater than or equal to the inclination angle of the blade closer to the virtual reference surface relative to the virtual reference surface.

[0009] In one embodiment, the portion of the blade near the virtual reference surface extends perpendicularly to the first direction from one end near the central axis to one end away from the central axis.

[0010] According to one aspect of this application, an air supply housing is provided, including the aforementioned air outlet grille. The air supply housing includes a main housing, the main housing having a housing air outlet extending around the first direction, and the air outlet grille being installed at the housing air outlet.

[0011] In one embodiment, the main housing has air inlets at opposite ends in the first direction, and air outlets are located on the outer periphery of the main housing.

[0012] According to one aspect of this application, an air supply device is provided, the air supply device including the aforementioned air supply housing.

[0013] In one embodiment, the air supply device further includes an air duct assembly, which is installed inside the main housing and coaxially arranged with the main housing, and the outer periphery of the air duct assembly has an air duct outlet extending around the first direction.

[0014] In one embodiment, from one end near the central axis to the other end away from the central axis, the two side walls of the air duct outlet in the first direction extend obliquely in a direction away from the virtual reference surface, and the width of the air duct outlet in the first direction gradually increases.

[0015] In one embodiment, the inclination angle between the opposite side walls of the air duct outlet in the first direction and the virtual reference surface is 0° to 45°.

[0016] In one embodiment, the orthographic projection of the edge of the air duct outlet onto the air outlet grille does not exceed the edge of the outermost grille outlet.

[0017] According to one aspect of this application, an air supply device is provided, including the aforementioned air supply device.

[0018] The blades of the aforementioned air outlet grille have a discrete, gradually expanding structure. At least some of the blades on both sides of the virtual reference plane extend outward at an angle, thereby expanding the air supply range of the air supply device equipped with the air outlet grille without changing the overall area of ​​the air outlet grille, thus achieving a better cooling effect without increasing the oscillation frequency of the air supply device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an air supply device according to this application.

[0020] Figure 2 This is an exploded view of an air supply device according to an embodiment of this application.

[0021] Figure 3 This is a schematic diagram of a partial structure of an air supply device according to an embodiment of this application.

[0022] Figure 4 for Figure 3 The air supply device shown is a cross-sectional view perpendicular to a third direction.

[0023] Figure 5 This is an exploded view of the air supply housing according to an embodiment of this application.

[0024] Figure 6 This is a schematic diagram of the main housing structure according to an embodiment of this application.

[0025] Figure 7 This is a schematic diagram of the structure of the first support ring according to an embodiment of this application.

[0026] Figure 8 This is a schematic diagram of the structure of the second support ring according to an embodiment of this application.

[0027] Figure 9 This is a schematic diagram of the air intake grille according to an embodiment of this application.

[0028] Figure 10 This is a schematic diagram of the structure of the air outlet grille according to an embodiment of this application.

[0029] Figure 11 This is a schematic diagram of the structure of the air outlet grille according to an embodiment of this application.

[0030] Figure 12 This is a schematic diagram of the assembly of the first air duct housing and the second air duct housing according to an embodiment of this application.

[0031] Figure 13 This is an exploded view of a duct assembly according to an embodiment of this application.

[0032] Figure 14 This is a schematic diagram of the structure of the first air duct housing according to an embodiment of this application.

[0033] Figure 15 This is a schematic diagram of the structure of the second air duct housing according to an embodiment of this application.

[0034] Figure 16 This is a schematic diagram of the structure of an air duct assembly according to an embodiment of this application.

[0035] Figure 17 This is a schematic diagram of the structure of a limiting sleeve according to an embodiment of this application.

[0036] Figure 18 for Figure 17 A schematic diagram of the limiting sleeve from another direction.

[0037] Figure 19 for Figure 17 The side view of the limiting sleeve shown.

[0038] Figure 20 This is a schematic diagram of the structure of the first bushing according to an embodiment of this application.

[0039] Figure 21 This is a schematic diagram of the assembly of the limiting sleeve and the first bushing according to an embodiment of this application.

[0040] Figure 22 This is a schematic diagram of the wiring of an electrical connection line according to an embodiment of this application.

[0041] Figure 23 This is a schematic diagram of the structure of an air outlet device according to an embodiment of this application.

[0042] Figure 24 for Figure 23 The front view of the air outlet device shown.

[0043] Figure 25 This is a schematic diagram of the structure of a connector according to an embodiment of this application.

[0044] Explanation of icon numbers:

[0045] 1000, Air supply equipment; 100, Base; 200, Main body; 300, Air supply device;

[0046] 10. Air supply housing; 11. Main housing; 111. Air inlet; 112. Air outlet; 113. Housing buckle; 114. Screw through hole; 115. Housing slot; 116. Housing clip; 12. First support ring; 121. Support ring buckle; 125. Bushing receiving groove; 127. Main housing cable hole; 129. Main housing cable outlet hole; 13. Second support ring; 132. Screw post; 136. Bushing mounting position; 14. Air inlet grille; 141. Grille buckle; 15. Air outlet grille; 152. Grille tongue; 154. Grille slot; 156. Blade;

[0047] 20. Air supply mechanism; 21. Air duct assembly; 211. First air duct housing; 2112. First air duct end wall; 2114. First air duct side wall; 2114a. Air duct tongue; 2114b. Air duct screw post; 2114c. Gear rail; 2116. Drive component receiving part; 212. Second air duct housing; 2121. Second air duct end wall; 2123. Second air duct side wall; 2123a. Air duct stop; 2123b. Air duct screw through hole; 2125. Limiting ring; 213. Air supply duct; 213a. Air duct inlet; 213b. Air duct outlet; 215. First rotating connection structure; 2152 2151. Limiting sleeve; 2151. First limiting part; 2151a. Limiting sleeve wire hole; 2151b. Bushing limiting groove; 2153. Second limiting part; 2153a. Limiting sleeve wire groove; 2154. Wiring limiting part; 2154a. First wiring limiting part; 2154b. Second wiring limiting part; 2155. Reinforcing part; 2156. First bushing; 2157. Bushing body; 2157a. Bushing wire hole; 2157b. Bushing limiting part; 2158. Stop part; 216. Second rotating connection structure; 2162. Second bushing; 23. Wind turbine; 25. Wind turbine drive component; 27. Electrical connection wire;

[0048] 30. Oscillating drive unit; 32. Oscillating drive component; 34. Transmission wheel;

[0049] 40. Connector; 41. Connecting panel; 412. First connecting part; 414. Second connecting part; 414a. Connecting hole; 414b. Limiting sleeve through groove; 416. Third connecting part; 43. Connecting post; 45. Mounting part. Detailed Implementation

[0050] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0051] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, the first feature being "on" or "below" the second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium.

[0055] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0056] See Figure 1 and Figure 2 The embodiments of this application provide an air supply device 1000, including a base 100, a main body 200, and an air supply device 300.

[0057] The base 100 is a flattened cylinder or similar shape, and can be placed on the ground, tabletop, or other surfaces for support and fixation. The main body 200 is generally a vertically extending cylindrical structure, mounted on the base 100, and serves to support, connect, and house components. The air supply device 300 is generally a cylindrical structure, mounted at the top of the main body 200 away from the base 100, and is used to create a directional airflow to achieve a cooling effect.

[0058] In the following embodiments, the axial direction of the air supply device 300 is defined as the first direction (i.e., Figure 4 In the X direction), the height direction of the air supply equipment 1000 is defined as the second direction (i.e., Figure 1 (in the Z direction).

[0059] Please see Figures 2 to 4 The air supply device 300 includes an air supply housing 10, an air supply mechanism 20, and an oscillation drive unit 30. The air supply mechanism 20 is disposed within the air supply housing 10 and can be directly or indirectly connected to the air supply housing 10 or the main body 200. The air supply mechanism 20 is used to create negative pressure to generate an airflow. The oscillation drive unit 30 is disposed within the air supply housing 10 and is drively connected to the air supply mechanism 20. The oscillation drive unit 30 can drive the air supply mechanism 20 to rotate relative to the air supply housing 10, thereby changing the airflow direction of the air supply device 300. It is understood that the location of the oscillation drive unit 30 is not limited to this; in some other embodiments, the oscillation drive unit 30 may also be disposed within the main body 200.

[0060] Specifically, in combination Figures 2 to 5 As shown, the air supply housing 10 includes a main housing 11, a first support ring 12, and a second support ring 13 that are connected to each other.

[0061] Please see Figure 6 The main housing 11 is generally a hollow cylindrical shell structure, and the central axis of the main housing 11 extends along the first direction. The main housing 11 has an air inlet 111 at each of its opposite ends in the first direction, and the air outlet 112 extending around the first direction is opened on the outer periphery of the air supply housing 10.

[0062] like Figure 5 , Figure 6 as well as Figure 7 As shown, the first support ring 12 has a generally disc-shaped mesh structure and is installed at one of the air inlets 111 of the main housing 11. In one specific embodiment, the main housing 11 and the first support ring 12 are fixedly connected to each other by rotating and engaging the housing buckle 113 on the main housing 11 and the support ring buckle 121 on the first support ring 12.

[0063] like Figure 5 , Figure 6 as well as Figure 8 As shown, the second support ring 13 has a generally disc-shaped mesh structure and is installed at another air inlet 111 at the end of the main housing 11 away from the first support ring 12. In one specific embodiment, the main housing 11 and the second support ring 13 are fixed to each other through screw holes 114 on the main housing 11 and screw posts 132 on the second support ring 13.

[0064] like Figure 5 , Figure 9As shown, in some embodiments, the air supply housing 10 further includes two air inlet grilles 14 and one air outlet grille 15. It is understood that in other embodiments, the air supply housing 10 may not include the air inlet grilles 14 and the air outlet grille 15, and the first support ring 12 and the second support ring 13 serve to isolate and protect the air supply housing.

[0065] Specifically, the air intake grilles 14 have a disc-shaped mesh structure. Two air intake grilles 14 are respectively installed on the first support ring 12 and the second support ring 13 and respectively cover the two air inlets 111 of the main housing 11. In one embodiment, the two air intake grilles 14 are respectively rotated and fastened to the first support ring 12 and the second support ring 13 by grille buckles 141. In other embodiments, the air intake grilles 14 can also be directly fixed to the main housing 11.

[0066] like Figure 5 , Figure 6 , Figure 10 As shown, the air outlet grille 15 is an arc-shaped mesh structure that bends and extends around a central axis extending in a first direction, and the central axis of the air outlet grille 15 coincides with the central axis of the main housing 11. The shape of the air outlet grille 15 matches the shape of the air outlet 112 of the main housing 11 so as to be installed on the air outlet 112.

[0067] In one specific embodiment, the air outlet grille 15 has at least one grille tongue 152 protruding from one end in the longitudinal direction, and at least one grille slot 154 on the other end in the longitudinal direction and on both sides in the width direction. Correspondingly, the air outlet 112 of the main housing 11 has a housing slot 115 on one side edge in the circumferential direction of the main housing 11, and at least one housing buckle 116 on the other side edge in the circumferential direction of the main housing 11 and on both sides in the first direction. In this way, the grille tongue 152 of the air outlet grille 15 can be inserted into the housing slot 115 of the main housing 11, and the housing buckle 116 of the main housing 11 is engaged in the grille slot 154 of the air outlet grille 15, thereby installing the air outlet grille 15 on the main housing 11.

[0068] Please see Figure 11 In some embodiments, the air outlet grille 15 includes a plurality of blades 156 spaced apart along a first direction, and two adjacent blades 156 form a grille air outlet. The airflow generated under the negative pressure of the air supply mechanism 20 can flow out simultaneously through the plurality of grille air outlets.

[0069] Furthermore, the air outlet grille 15 has a virtual reference surface A, which is perpendicular to the first direction and passes through the center point of the air outlet 112 in the first direction. The air outlet grille 15 is symmetrically arranged with respect to the virtual reference surface A. At least a portion of the blades 156 extend obliquely from one end near the central axis of the air outlet grille 15 to the end away from the central axis in a direction away from the virtual reference surface A.

[0070] Thus, the blades 156 of the air outlet grille 15 have a discrete, gradually expanding structure, with at least some of the blades 156 on both sides of the virtual reference plane A extending outward at an angle, thereby expanding the air supply range of the air supply device 300 without changing the area of ​​the air outlet 112, resulting in a better cooling effect without increasing the oscillation frequency of the air supply mechanism 20.

[0071] Specifically, in some embodiments, the tilt angle of the blade 156 relative to the virtual reference plane A is 0° to 45° from the end near the central axis of the air outlet grille 15 to the end away from the central axis. This expands the air supply range without affecting the air volume or increasing the outlet noise. Conversely, if the tilt angle is greater than 45°, the excessive tilt of the blade 156 will obstruct the airflow, affecting the air volume and increasing the outlet noise. If the tilt angle is less than 0°, it will actually reduce the air supply range.

[0072] In a preferred embodiment, in the direction from the virtual reference plane A along the first direction pointing to the edge of the air outlet grille 15, the portion of the blades 156 near the virtual reference plane A extends perpendicularly to the first direction from one end near the central axis to one end away from the central axis. The blades 156 away from the virtual reference plane A extend at an angle relative to the virtual reference plane A. In each pair of adjacent blades 156 on either side of the virtual reference plane A, the angle of inclination of the blades 156 away from the virtual reference plane A relative to the virtual reference plane A is equal to or greater than the angle of inclination of the blades 156 near the virtual reference plane A relative to the virtual reference plane A, thereby achieving a better air outlet effect.

[0073] In one specific embodiment, the blades 156 are symmetrically arranged with respect to the virtual reference plane A. Taking the blade 156 located on the side of the virtual reference plane closer to the first support ring 12 as an example: the two blades 156 closest to the virtual reference plane A have an inclination angle of 0° relative to the virtual reference plane, that is, the blades 156 are arranged parallel to the virtual reference plane A. Among the other four blades 156, from the closest to the virtual reference plane A to the furthest from the virtual reference plane A, the inclination angles of three blades 156 relative to the virtual reference plane A increase sequentially. The included angles formed by the four blades 156 relative to the virtual reference plane A are α1, α2, α3, and α4, respectively, where 0°≤α1≤α2≤α3≤α4≤45°. Preferably, α1 is 5°, α2 is 10°, α3 is 15°, and α4 is 15°.

[0074] It is understood that the number of blades 156 of the air outlet grille 15 is not limited to this, and the tilt angle of each blade 156 can also be set as needed to meet different air outlet requirements.

[0075] Please combine Figure 12 and Figure 13 As shown, the air supply mechanism 20 is installed inside the air supply housing 10 and includes an air duct assembly 21, a wind turbine 23, and a wind turbine drive component 25.

[0076] The air duct assembly 21 includes an air duct housing, a first rotatable connection structure 215, and a second rotatable connection structure 216. The air duct housing has a rotating shaft extending along a first direction, and an air supply duct 213 is formed inside the air duct housing. An air duct inlet 213a is opened at each of the opposite ends of the air duct housing in the first direction, and an air duct outlet 213b extending around the first direction is opened on the outer periphery of the air duct housing. The air duct inlet 213a and the air duct outlet 213b are respectively connected to the air supply duct 213.

[0077] The first rotating connection structure 215 and the second rotating connection structure 216 are respectively installed on opposite sides of the air duct housing in the first direction. The air duct housing is rotatably installed on the air supply housing 10 through the first rotating connection structure 215 and the second rotating connection structure 216, so that it can rotate relative to the air supply housing 10 around its own rotation axis.

[0078] The impeller 23 is rotatably mounted in the air supply duct 213 about a first direction, and the central axis of the impeller 23 extends along the first direction. The impeller drive 25 is mounted on the duct assembly 21, and the output shaft of the impeller drive 25 is connected to the impeller 23 for transmission. The impeller 23 rotates under the drive of the impeller drive 25 to agitate the air. A low-pressure zone is formed inside the impeller 23. Outside air enters the impeller 23 from the opposite ends on the axial direction and flows out from the radial direction of the impeller 23.

[0079] In one specific embodiment, the wind turbine 23 and the output shaft of the wind turbine drive 25 are connected to each other by a shaft hole fit, and a nut is sleeved on the output shaft. The nut is used to restrict the movement of the wind turbine 23 in the axial direction to prevent the wind turbine 23 from disengaging from the output shaft of the wind turbine drive 25 during rotation.

[0080] Thus, under the negative pressure of the impeller 23, outside air can pass through the air inlet 111 of the air supply housing 10 and the air inlet 213a of the air supply mechanism 20 to enter the interior of the air supply mechanism 20, and then flow out through the air outlet 213b of the air supply mechanism 20 and the air outlet 112 of the air supply housing 10 in sequence.

[0081] In some further embodiments, the duct housing 10 includes a first duct housing 211 and a second duct housing 212, which are connected to each other in a first direction to jointly form an air supply duct 213.

[0082] Please combine Figure 12 , Figure 13 as well as Figure 14 As shown, the first air duct housing 211 includes an integrally formed first air duct end wall 2112 and a first air duct side wall 2114. An air duct inlet 213a is formed in the middle region of the first air duct end wall 2112. The first air duct side wall 2114 extends in the same direction from a portion of the edge of the first air duct end wall 2112 and is arc-shaped around the first air duct end wall 2112 in the circumferential direction.

[0083] Please combine Figure 12 , Figure 13 as well as Figure 15 As shown, the second air duct housing 212 includes an integrally formed second air duct end wall 2121 and a second air duct side wall 2123. An air duct inlet 213a is formed in the middle region of the second air duct end wall 2121, and the second air duct side wall 2123 extends from a portion of the edge of the second air duct end wall 2121 in the same direction and is arc-shaped around the second air duct end wall 2121 in the circumferential direction.

[0084] In some embodiments, the first air duct housing 211 is further provided with an air duct tongue 2114a and an air duct screw post 2114b, and the second air duct housing 212 is further provided with an air duct stop 2123a and an air duct screw through hole 2123b. Through the mutual engagement of the air duct tongue 2114a and the air duct stop 2123a, and the air duct screw through hole 2123b and the air duct screw post 2114, the first air duct housing 211 and the second air duct housing 212 are fixedly connected to each other to form a whole.

[0085] Thus, two air inlets 213a are formed on opposite sides of the air duct assembly 21 in the first direction, and an air outlet 213b extending circumferentially along the air duct assembly 21 is formed between the first air duct sidewall 2114 and the second air duct sidewall 2123. The first air duct endwall 2112 and the second air duct endwall 2121 respectively form opposite side walls of the air outlet 213b in the first direction.

[0086] like Figure 16 As shown, further, from one end near the central axis of the main housing 11 to the end away from the central axis, the opposite side walls of the air duct outlet 213b in the first direction extend obliquely toward the virtual reference surface opposite to the main housing 11 (i.e., the opposite side walls of the air duct outlet 213b in the first direction extend obliquely toward each other), and the width of the air duct outlet 213b in the first direction gradually increases.

[0087] Thus, the air outlet 213b of the air duct forms an outward expansion structure, which can effectively diffuse the airflow generated by the impeller 23 to the air outlet grille 15 for guidance and blowing out. Combined with the discrete gradually expanding structure of the air outlet grille 15, the air outlet range of the air supply device 300 is effectively expanded.

[0088] In some embodiments, the inclination angle β of the two side walls of the air outlet 213b in the first direction relative to the virtual reference surface is 0° to 45°, thereby achieving good diffusion and airflow guiding effects. Conversely, if the inclination angle β is greater than 45°, it will obstruct the smooth flow of air, while if the inclination angle β is less than 0°, it will reduce the air outlet range. It is understood that the specific value of the inclination angle β can be set according to factors such as the shape and size of the air supply device 300, and is not limited here.

[0089] Furthermore, the orthographic projection of the edge of the air outlet 213b on the air outlet grille 15 does not exceed the outer edge of the outermost grille outlet of the air outlet grille 15, thereby preventing the airflow from being obstructed during the flow process.

[0090] Please refer to it again. Figure 12 , Figure 13 as well as Figure 14 In some embodiments, the first air duct housing 211 further includes a drive member receiving portion 2116. The drive member receiving portion 2116 is located at the center of the air duct inlet 213a of the first air duct end wall 2112. The drive member receiving portion 2116 has a drive member receiving groove for receiving the wind turbine drive member 25. The wind turbine drive member 25 is received in the drive member receiving groove, and the output shaft of the wind turbine drive member 25 extends out of the drive member receiving groove in a first direction.

[0091] Please combine Figure 7 , Figure 17 as well as Figure 20 As shown, the first rotating connection structure 215 includes a limiting sleeve 2152 and a first bushing 2156.

[0092] Specifically, the limiting sleeve 2152 is generally a hollow disc-shaped structure. The limiting sleeve 2152 is fixed to the outside of the drive member receiving portion 2116 of the first air duct housing 211, thus located at one end of the air duct assembly 21 in the first direction. The central axis of the limiting sleeve 2152 extends along the first direction and coincides with the rotation axis of the air duct housing. The first bushing 2156 is a hollow cylindrical structure. One end of the first bushing 2156 is rotatably inserted through the limiting sleeve 2152 around the first direction, and the other end of the first bushing 2156 is fixed to the bushing receiving groove 125 of the first support ring 12. Thus, by rotating the limiting sleeve 2152 and the first bushing 2156 relative to each other around the first direction, the air duct assembly 21 and the first support ring 12 can rotate relative to each other around the first direction.

[0093] Please combine Figures 17 to 22 As shown, the limiting sleeve 2152 is roughly disc-shaped. The limiting sleeve 2152 has a limiting sleeve wire passage hole 2151a and a limiting sleeve wire passage groove 2153a. The limiting sleeve wire passage hole 2151a is located in the middle region of the limiting sleeve 2152, and its central axis coincides with the rotation axis of the air duct housing. One end of the limiting sleeve wire passage groove 2153a connects to the limiting sleeve wire passage hole 2151a, and the other end extends radially along the limiting sleeve 2152 to its edge.

[0094] Thus, the electrical connection wire 27 of the air supply structure 20 can be led out through the wire groove 2153a and the wire hole 2151a of the limiting sleeve. The central axis of the wire hole 2151a of the limiting sleeve coincides with the rotation axis of the air duct shell. The wire groove 2153a of the limiting sleeve can limit the electrical connection wire 27 so as to drive the electrical connection wire 27 to rotate synchronously, thereby effectively preventing the air supply device 300 from pulling the electrical connection wire 27 during the oscillation process and extending the service life of the air supply device 300.

[0095] Specifically, the limiting sleeve 2152 includes an integrally formed first limiting portion 2151 and a second limiting portion 2123. The first limiting portion 2151 has a hollow annular structure, and a limiting sleeve through hole 2151a is formed around the first limiting portion 2151. The second limiting portion 2123 surrounds one end of the first limiting portion 2151 in the circumferential direction, and a limiting sleeve through groove 2153a is formed in the second limiting portion 2123 and communicates with the first limiting portion 2151. The edge of the second limiting portion 2123 is also provided with a plurality of screw holes, which are arranged at intervals along the circumference of the second limiting portion 2123. The limiting sleeve 2152 can be fixed to the drive member receiving portion 2116 of the first air duct housing 211 through these screw holes.

[0096] Furthermore, the limiting sleeve 2152 also includes a wiring limiting part 2154, which protrudes from the first limiting part 2151 and covers the wire passage groove 2153a of the limiting sleeve, thereby further restricting the wiring path of the electrical connection wire 27, thereby driving the electrical connection wire 27 to rotate with the limiting sleeve 2152.

[0097] In one specific embodiment, the wiring limiting portion 2154 includes a first wiring limiting portion 2154a and a second wiring limiting portion 2154b. The first wiring limiting portion 2154a protrudes from the side of the second limiting portion 2123 facing away from the first limiting portion 2151, and the second wiring limiting portion 2154b protrudes from the side of the second limiting portion 2123 facing the first limiting portion 2151. In the extending direction of the limiting sleeve through the wire groove 2153a, the second wiring limiting portion 2154b is located between the first wiring limiting portion 2154a and the first limiting portion 2151.

[0098] Thus, the first wiring limit part 2154a and the second wiring limit part 2154b respectively limit the electrical connection wire 27 on both sides of the second limit part 2123, thereby ensuring that the electrical connection wire 27 can rotate synchronously with the limit sleeve 2152.

[0099] In a preferred embodiment, the limiting sleeve 2152 further includes a reinforcing portion 2155, which protrudes from the edge of the second limiting portion 2123 and communicates with the limiting sleeve through groove 2153a, thereby strengthening the structural strength of the limiting sleeve 2152 and preventing the limiting sleeve 2152 from deforming due to the opening of the limiting sleeve through groove 2153a. In some embodiments, the reinforcing portion 2155 also has a screw hole, through which the limiting sleeve 2152 can be fixed to the drive member receiving portion 2116 of the first air duct housing 211.

[0100] like Figure 20 As shown, the first bushing 2156 includes an integrally formed bushing body 2157 and a stop portion 2158. The bushing body 2157 has a hollow cylindrical structure, and its outer diameter matches the diameter of the limiting sleeve wire passage hole 2151a. The central region of the bushing body 2157 forms the bushing wire passage hole 2157a. The stop portion 2158 surrounds one end of the stop portion 2157 circumferentially, and its outer diameter is larger than that of the bushing body 2157. Thus, the bushing body 2157 is rotatably inserted into the limiting sleeve wire passage hole 2151a of the limiting sleeve 2152. The limiting sleeve wire passage groove 2153a and the bushing wire passage hole 2157a together form a wiring channel for the power supply connection wire 27 to pass through, and the stop portion 2158 contacts one end face of the second limiting portion 2123 of the limiting sleeve 2152.

[0101] Furthermore, the wall of the limiting sleeve through hole 2151a is provided with at least one semi-circular bushing limiting groove 2151b, and the end edge of the bushing body 2157 away from the stop part 2158 is provided with at least one semi-circular bushing limiting part 2157b. The bushing limiting part 2157b extends out of the limiting sleeve through hole 2151a through the bushing limiting groove 2151b to contact one end face of the first limiting part 2151.

[0102] When assembling the limiting sleeve 2152 and the first bushing 2156, firstly, the bushing limiting part 2157b of the first bushing 2156 is aligned with the bushing limiting groove 2151b of the limiting sleeve 2152. The first bushing 2156 is then inserted into the limiting sleeve through hole 2151a of the limiting sleeve 2152 and rotated 90°. The bushing limiting part 2157b and the bushing limiting groove 2151b are misaligned. Finally, the limiting sleeve 2152 is rotatably limited between the bushing limiting part 2157b and the stop part 2158.

[0103] like Figure 7 , Figure 18 , Figure 20 , Figure 22 As shown, in some embodiments, the bottom wall of the bushing receiving groove 125 of the first support ring 12 is also formed with a main housing wire passage hole 127. The first support ring 12 has a main housing wire outlet hole 129 on one side edge facing the main body 200. The limiting sleeve wire passage groove 2153a of the limiting sleeve 2152, the bushing wire passage hole 2157a of the first bushing 2156, and the main housing wire passage hole 127 together form a wiring channel. In this way, the electrical connection wire 27 led out from the wind turbine drive component 25 can pass through the above wiring channel, and then extend downwards to be led out from the main housing wire outlet hole 129 and enter the main body 200.

[0104] Please refer to the previous document. Figure 8 and Figure 13 The second rotating connection structure 216 includes a second bushing 2162. One end of the second bushing 2162 is rotatably inserted into the second air duct housing 212, and the other end of the second bushing 2162 is fixed to the second support ring 13 of the main housing 11, so that the second air duct housing 212 and the main housing 11 can rotate relative to each other.

[0105] Specifically, the second bushing 2162 has a hollow cylindrical structure. The second air duct housing 212 also includes a limiting ring 2125, which is located at the center of the air outlet 213b of the second air duct end wall 2121. Thus, one end of the second bushing 2162 is inserted into the bushing mounting position 136 of the second support ring 13 and is fixedly connected to the bushing mounting position 136 by screws or other fasteners, while the other end of the second bushing 2162 is inserted into the limiting ring 2125 and can rotate relative to the limiting ring 2125.

[0106] like Figure 23 , Figure 24 As shown, in some embodiments, in order to drive the air supply mechanism 20 to rotate relative to the main housing 11 in a first direction, the air duct housing is provided with a toothed rail 2114c that bends and extends around its rotation axis. The oscillation drive unit 30 meshes with the toothed rail 2114c to be connected to the air supply mechanism 20 for transmission. Therefore, the oscillation drive unit 30 can drive the air supply mechanism 20 to rotate in the first direction through the toothed rail 2114c.

[0107] Specifically, the toothed rail 2114c is located on the outer periphery of the first air duct housing 211. The toothed rail 2114c extends circumferentially along the first air duct housing 211 and is arc-shaped. The length of the toothed rail 2114c can be set according to the rotation angle of the air supply mechanism 20. The oscillation drive unit 30 includes an oscillation drive component 32 and a transmission wheel 34. The transmission wheel 34 is installed at the output end of the oscillation drive component 32 and meshes with the toothed rail 2114c. Therefore, the oscillation drive component 32 can drive the transmission wheel 34 to rotate, thereby driving the toothed rail 2114c to rotate.

[0108] Because the air supply mechanism 20 rotates relative to the air supply housing 10 in the first direction under the drive of the oscillation drive unit 30 via the gear rail 2114c, the air supply device 300 has an up-and-down oscillation function, solving the problem that traditional air supply structures cannot oscillate up and down. Moreover, while the air supply mechanism 20 rotates, the air supply housing 10 does not rotate synchronously with the air supply mechanism 20 in the first direction but remains stationary relative to the main body 200. This provides convenience for the installation of other functional components. These functional components can be fixed by the air supply housing 10 without having to oscillate up and down with the air supply mechanism 20, thereby reducing the restrictions on the size, structure, and installation method of the functional components and optimizing the performance of the air supply device 300.

[0109] Please see Figures 23 to 25 In some embodiments, the air supply device 300 further includes a connector 40, which is used to connect the main body 200 and the air supply device 300 and to mount the oscillation drive unit 30. Since the connector 40 serves to connect the main body 200 and the air supply device 300 while also mounting the oscillation drive unit 30, the structure of the air supply device 300 is simplified, making the structure of the air supply device 300 more compact and meeting the space constraints of the shape design, without the need to add additional parts to specifically fix the oscillation drive unit 30.

[0110] Specifically, the connector 40 is installed at the bottom of the air supply mechanism 20 and includes a connecting panel 41, a connecting post 43, and a mounting part 45. The connecting panel 41 is used to connect the main housing 11, the connecting post 43 is located on one side of the connecting panel 41 and is used to connect the main body 200, and the mounting part 45 is located at one end of the connecting panel 41 and is used to install the oscillating drive unit 30 that drives the air supply mechanism 20 to rotate.

[0111] In some specific embodiments, the connecting panel 41 includes a first connecting portion 412, two second connecting portions 414, and a third connecting portion 416. The first connecting portion 412 has a rectangular flat plate structure, and the connecting post 43 is connected to the side surface of the first connecting portion 412 facing away from the air supply mechanism 20. The two second connecting portions 414 are respectively provided on opposite sides of the first connecting portion 412 in a first direction. Each second connecting portion 414 has a connecting hole 414a and a panel wire passage groove 414b on its side edge away from the first connecting portion 412. The second connecting portion 414 can be fixed to the first support ring 12 or the second support ring 13 through the connecting hole 414a. The panel wire passage groove 414b is correspondingly connected to the main housing wire outlet hole 129 on the first support ring 12. Therefore, the electrical connecting wire 27 led out from the first support ring 12 can pass through the panel wire passage groove 414b and extend into the main body 200.

[0112] The third connecting portion 416 is connected to one side edge of the first connecting portion 412. From the end connected to the first connecting portion 412 to the end away from the first connecting portion 412, the third connecting portion 416 extends upward at an angle away from the connecting post 43. The mounting portion 45 is provided on the side of the third connecting portion 416 away from the first connecting portion 412. In this way, the inclined third connecting portion 416 brings the connecting member 40 close to the air supply mechanism 20, which facilitates the mating of the oscillation drive unit 30 mounted on the mounting portion 45 with the air supply mechanism 20.

[0113] Furthermore, the mounting part 45 is provided with a receiving groove for opening at one end, and the opening end of the receiving groove faces away from the air supply mechanism 20. The shape of the receiving groove matches the shape of the oscillation drive unit 30, and the oscillation drive unit 30 is partially received in the receiving groove.

[0114] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0115] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An air outlet grille, characterized in that, The air outlet grille bends and extends around a central axis extending in a first direction. The air outlet grille includes a plurality of blades (156) spaced apart in the first direction, and an air outlet is formed between two adjacent blades (156). The air outlet grille has a virtual reference surface perpendicular to the first direction, and the air outlet grille is symmetrically arranged with the virtual reference surface as the symmetrical surface; at least a portion of the blades (156) extend obliquely from one end near the central axis to one end away from the central axis in a direction away from the virtual reference surface.

2. The air outlet grille according to claim 1, characterized in that, The blade (156) has an inclination angle of 0° to 45° relative to the virtual reference surface from the end closest to the central axis to the end furthest from the central axis.

3. The air outlet grille according to claim 1 or 2, characterized in that, In each of two adjacent blades (126) located on either side of the virtual reference surface, the tilt angle of the blade (126) farther from the virtual reference surface relative to the virtual reference surface is greater than or equal to the tilt angle of the blade (126) closer to the virtual reference surface relative to the virtual reference surface.

4. The air outlet grille according to claim 1 or 2, characterized in that, The portion of the blade (156) near the virtual reference surface extends perpendicularly to the first direction from one end near the central axis to the other end away from the central axis.

5. An air supply casing, characterized in that, The air supply housing includes the air outlet grille as described in any one of claims 1 to 4, the air supply housing includes a main housing (11), the main housing (11) has a housing air outlet (112) extending around the first direction, and the air outlet grille (15) is installed on the housing air outlet (112).

6. The air supply housing according to claim 5, characterized in that, The main housing (11) has air inlets (111) at opposite ends in the first direction, and air outlets (112) are located on the outer periphery of the main housing (11).

7. An air supply device, characterized in that, The air supply device includes the air supply housing as described in any one of claims 5 or 6.

8. The air supply device according to claim 7, characterized in that, The air supply device also includes a duct assembly (21), which is installed inside the main housing (11) and coaxially arranged with the main housing (11). The outer periphery of the duct assembly (21) is provided with a duct outlet (213b) extending around the first direction.

9. The air supply device according to claim 8, characterized in that, From one end near the central axis to the other end away from the central axis, the two side walls of the air duct outlet (213b) in the first direction extend obliquely in the direction away from the virtual reference plane, and the width of the air duct outlet (213b) in the first direction gradually increases.

10. The air supply device according to claim 9, characterized in that, The inclination angle of the opposite side walls of the air outlet (213b) in the first direction relative to the virtual reference plane is 0° to 45°.

11. The air supply device according to claim 9, characterized in that, The orthographic projection of the edge of the air outlet (213b) on the air outlet grille (15) does not exceed the edge of the outermost grille outlet.

12. An air supply device, characterized in that, Includes the air supply device as described in any one of claims 7 to 11.

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