Air outlet device and fan lamp

Abstract

The invention relates to an air outlet device and a fan lamp, and the air outlet device comprises a shell, an air inlet and an air outlet, the wind wheel is rotatably arranged in the shell, and an annular accelerating cavity used for accelerating flowing of airflow is formed by the wind wheel; the air duct shell is arranged in the shell and forms an annular air duct cavity in the circumferential direction of the wind wheel, the annular air duct cavity communicates with the annular acceleration cavity, the air duct shell is provided with a first air inlet hole communicating with the ventilation opening, and the first air inlet hole coaxially communicates with the annular acceleration cavity; an annular air outlet communicated with the annular air duct cavity is formed in the bottom of the annular air duct cavity of the shell; the outer diameter d1 of the first air inlet hole, the outer diameter d2 of the wind wheel and the outer diameter D of the annular air duct cavity meet the following relations that (d1 / d2) is larger than or equal to 0.7 and smaller than or equal to 0.75, and (D / d2) is larger than or equal to 1.3 and smaller than or equal to 1.4. According to the air outlet device, the air outlet amount can be effectively increased, the air outlet speed and the air supply distance are increased, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of fans, and in particular to an air outlet device and a fan lamp. Background Art

[0002] A fan light is a product that combines a fan and a lamp. It can blow air and provide lighting, realizing the multifunctional use of the product. In order to improve the aesthetics and safety of fan lights, hidden fan lights have appeared in the existing market. When a hidden fan light is in use, the fan blades are hidden in the air duct to prevent the fan blades from getting dusty, making it convenient for users to maintain it daily.

[0003] In the related art, due to the structural limitations of the hidden fan lamp, its air output and wind speed are relatively small, resulting in a short air supply distance and poor overall blowing effect, which affects the user experience. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides an air outlet device and a fan light, wherein the air outlet device can effectively increase the air volume, improve the air outlet speed and air delivery distance, and enhance the user experience.

[0005] In a first aspect, the present application provides an air outlet device, comprising:

[0006] The outer wall of the shell is provided with a plurality of vents;

[0007] A wind wheel is rotatably disposed in the housing, and the wind wheel forms an annular acceleration chamber for accelerating the flow of air;

[0008] An air duct shell is arranged in the shell and forms an annular air duct cavity around the circumference of the wind wheel, the annular air duct cavity is connected with the annular acceleration cavity, and the air duct shell is provided with a first air inlet hole connected with the vent, the first air inlet hole is coaxially connected with the annular acceleration cavity;

[0009] The shell is formed with an annular air outlet at the bottom of the annular air duct cavity, which is communicated with the annular air duct cavity;

[0010] The outer diameter of the first air inlet hole is d1, the outer diameter of the wind wheel is d2, and the outer diameter D of the annular air duct cavity satisfies the following relationship: 0.7≤(1 / d2)d≤0.75, 1.3≤(D / d2)≤1.4.

[0011] The air outlet device according to the first aspect of the present application has at least the following beneficial effects:

[0012] The air outlet device of the present application, through the coordinated arrangement of the shell, the wind wheel and the air duct shell, reasonably designs the outer diameter of the first air inlet hole to be d1 and the outer diameter of the wind wheel to be d2, and controls the ratio d1 / d2 of the outer diameter d1 of the first air inlet hole to the outer diameter d2 of the wind wheel to be within the range of 0.7 to 0.75, reasonably designs the outer diameter D of the annular air duct cavity and the outer diameter d2 of the wind wheel, and controls the ratio D / d2 of the outer diameter D of the annular air duct cavity to the outer diameter d2 of the wind wheel to be within the range of 1.3 to 1.4, so that the airflow can flow out from the annular air outlet more evenly, and the air volume, air speed and air supply distance can be increased.

[0013] In some embodiments, a second air inlet hole is opened on the side of the wind wheel close to the first air inlet hole, the first air inlet hole, the second air inlet hole and the annular acceleration chamber are coaxially connected in sequence, and the outer diameter of the first air inlet hole is less than or equal to the outer diameter of the second air inlet hole.

[0014] In some embodiments, the second air inlet hole and the first air inlet hole are spaced apart from each other along the axial direction of the wind wheel, and the axial distance d4 between the second air inlet hole and the first air inlet hole satisfies: 3mm<d4<8mm.

[0015] In some embodiments, an annular grille is formed on the shell, and opposite ends of the annular grille are respectively connected to opposite ends of the annular air outlet to cover the annular air outlet, and the annular grille divides the annular air outlet into a plurality of sub-air outlets.

[0016] In some embodiments, the annular grille includes a plurality of radial ribs spaced apart along the circumference of the annular air outlet, and the angles formed by two adjacent radial ribs are equal.

[0017] In some embodiments, the number of the radial ribs is n1, the angle formed by two adjacent radial ribs is β, and n1 and β satisfy: β=360 / n1, 12<n1≤24.

[0018] In some embodiments, the annular grille further includes a plurality of annular ribs spaced apart in a radial direction of the annular air outlet, the annular ribs are annular in shape, and the spacing between two adjacent annular ribs is equal.

[0019] In some embodiments, the number of the annular ribs is n2, the spacing between two adjacent annular ribs is a1, and n2, a1, D and d2 satisfy: a1=(D-d2) / (2*n2), 4≤n2<7.

[0020] In some embodiments, the outer diameter of the annular rib block gradually increases along the axial direction of the annular rib block and in a direction away from the annular air outlet.

[0021] In some embodiments, an angle α between a line connecting one end of the annular rib block close to the annular air outlet and the end of the annular rib block away from the annular air outlet and the axis of the annular air outlet satisfies: 30°≤α<45°;

[0022] And the length L of the line between one end of the annular rib block close to the annular air outlet and the end of the annular rib block far from the annular air outlet satisfies: 20mm≤L≤35mm.

[0023] In some embodiments, a plurality of the ventilation openings are circumferentially spaced apart on the side wall of the shell, a ventilation cavity is formed between the shell and the air duct shell, and the ventilation cavity is connected to the first air inlet hole.

[0024] In some embodiments, the air outlet device further includes a filter, which is connected to the housing and covers all of the vents.

[0025] In a second aspect, an embodiment of the present application provides a fan lamp, including:

[0026] The air outlet device described above;

[0027] The lamp is installed at the bottom of the shell and is coaxially distributed with the wind wheel, and the vertical projection of the wind wheel is within the vertical projection of the lamp or coincides with the vertical projection of the lamp.

[0028] The fan lamp according to the second aspect of the present application has at least the following beneficial effects:

[0029] The fan lamp of the present application not only has the functions of blowing air and lighting, but also has better air volume, air speed and air supply distance, thereby improving the overall performance of the fan lamp.

[0030] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0032] Figure 1 It is a schematic diagram of the structure of the air outlet device of an embodiment of the present application.

[0033] Figure 2 This is a structural exploded view of the air outlet device according to an embodiment of the present application.

[0034] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0035] Figure 4 The cross-sectional structure diagram of the air outlet device according to the embodiment of the present application is shown in FIG.

[0036] Figure 5 This is a schematic diagram of the structure of the wind wheel according to an embodiment of the present application.

[0037] Figure 6 Schematic diagram of the structure of the air duct shell of the embodiment of the present application.

[0038] Figure 7 It is a schematic diagram of the cross-sectional structure of the air duct shell according to an embodiment of the present application.

[0039] Figure 8 This is a diagram of the air flow direction of the air outlet device of an embodiment of the present application.

[0040] Fig. 9 Another cross-sectional view of the air outlet device according to the embodiment of the present application is shown.

[0041] Fig.10 for Fig. 9 A partial enlarged view of point B in the middle.

[0042] Fig.11 for Fig. 9 A partial enlarged view of point C in the middle.

[0043] Fig.12 This is a bottom view of the structure of the annular grille according to an embodiment of the present application.

[0044] Fig.13 This is a simulated cloud diagram of the outlet air flow when (D / d2) of the air outlet device of the embodiment of the present application is equal to 1.2.

[0045] Fig.14 This is a simulated cloud diagram of the outlet air flow when (D / d2) of the air outlet device of the embodiment of the present application is equal to 1.3.

[0046] Fig.15 This is a simulated cloud diagram of the outlet air flow when (D / d2) of the air outlet device of the embodiment of the present application is equal to 1.4.

[0047] Fig.16 This is a simulated cloud diagram of the outlet air flow when (D / d2) of the air outlet device of the embodiment of the present application is equal to 1.45.

[0048] Fig.17 This is a simulated cloud diagram of the outlet airflow of the air outlet device of the embodiment of the present application when n1=12 and β=30°.

[0049] Fig.18 This is a simulated cloud diagram of the outlet airflow of the air outlet device of the embodiment of the present application when n1=24 and β=15°.

[0050] Fig.19 This is a simulated cloud diagram of the outlet airflow when α of the air outlet device of the embodiment of the present application is equal to 30°.

[0051] Fig. 20 This is a simulated cloud diagram of the outlet airflow when the α of the air outlet device of the embodiment of the present application is equal to 35°.

[0052] Fig.21 This is a simulated cloud diagram of the outlet airflow when the α of the air outlet device of the embodiment of the present application is equal to 40°.

[0053] Fig. 22 This is a simulated cloud diagram of the outlet airflow when the angle α of the air outlet device of the embodiment of the present application is equal to 45°.

[0054] Explanation of the reference numerals: shell 100; vent 110; annular air outlet 120; sub-air outlet 121; annular grille 130; radial ribs 131; annular ribs 132; ventilation cavity 140; top cover 150; support frame 160; base 170; wind wheel 200; annular acceleration cavity 210; second air inlet 220; annular frame 230; fan blades 240; air duct shell 300; first air inlet 310; annular air duct cavity 320; filter 400; lamp 500; rotating drive member 600. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0056] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0057] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0059] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it 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. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0061] A fan light is a product that combines a fan and a lamp. It can blow air and provide lighting, realizing the multifunctional use of the product. In order to improve the aesthetics and safety of fan lights, hidden fan lights have appeared in the existing market. When a hidden fan light is in use, the fan blades are hidden in the air duct to prevent the fan blades from getting dusty, making it convenient for users to maintain it daily.

[0062] In the related art, due to the structural limitations of the hidden fan lamp, its air output and wind speed are relatively small, resulting in a short air supply distance, resulting in poor overall blowing effect, and affecting the user experience.

[0063] Based on this, one or more embodiments of the present application provide an air outlet device, which reasonably designs the outer diameter of the first air inlet hole and the outer diameter of the wind wheel through the coordinated arrangement of a shell, a wind wheel and an air duct shell, and controls the ratio of the outer diameter of the first air inlet hole to the outer diameter of the wind wheel within the range of 0.7 to 0.75. It also reasonably designs the outer diameter of the annular air duct cavity and the outer diameter of the wind wheel, and controls the ratio of the outer diameter of the annular air duct cavity to the outer diameter of the wind wheel within the range of 1.3 to 1.4. This can make the airflow flow out of the annular air outlet more evenly, increase the air volume, air speed and air supply distance, and enhance the user experience.

[0064] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 An embodiment of the present application provides an air outlet device, which includes a housing 100 , a wind wheel 200 and an air duct housing 300 .

[0065] The outer wall of the housing 100 is provided with a plurality of vents 110. The wind wheel 200 is rotatably disposed in the housing 100, and the wind wheel 200 forms an annular acceleration chamber 210 for accelerating the flow of air.

[0066] The air duct shell 300 is arranged in the shell body 100 and forms an annular air duct cavity 320 around the circumference of the wind wheel 200. The annular air duct cavity 320 is connected with the annular acceleration cavity 210, and the air duct shell 300 is provided with a first air inlet hole 310 connected with the ventilation port 110. The first air inlet hole 310 is coaxially connected with the annular acceleration cavity 210.

[0067] The housing 100 is formed with an annular air outlet 120 at the bottom of the annular air duct cavity 320 , which is in communication with the annular air duct cavity 320 .

[0068] The outer diameter of the first air inlet 310 is d1, the outer diameter of the wind wheel 200 is d2, and the outer diameter D of the annular air duct cavity 320 satisfies the following relationship: 0.7≤(d1 / d2)≤0.75, 1.3≤(D / d2)≤1.4.

[0069] It should be noted that see Figure 1 , Figure 4 In the present application, the housing 100 may be a cylinder or a regular body of revolution such as a square body. A plurality of vents 110 may be provided on the side wall of the housing 100 and distributed at intervals along the circumference of the housing 100. Of course, a plurality of vents 110 may also be provided on the top of the housing 100. The vents 110 may be, but are not limited to, regular shaped through holes such as round holes and square holes.

[0070] See also Figure 2 , Figure 4 and Figure 5 The wind wheel 200 is in the shape of a disk. The wind wheel 200 includes an annular frame 230 and a plurality of blades 240 disposed on the annular frame 230. The peripheral side of the annular frame 230 is hollowed out, the middle of the annular frame 230 is hollow, and the top of the annular frame 230 is open, so that the first air inlet 310 on the air duct shell 300 is coaxially connected with the annular acceleration chamber 210. The plurality of blades 240 are distributed at intervals along the peripheral side of the annular frame 230, and the blades 240 are in the shape of arc sheets. The blades 240 are curved from the peripheral side of the annular frame 230 toward the axis of the annular frame 230. The annular frame 230 and all the blades 240 define and form an annular acceleration chamber 210.

[0071] In this way, when the annular skeleton 230 drives all the fan blades 240 thereon to rotate, the annular acceleration chamber 210 formed by the wind wheel 200 as a whole is connected with the ventilation port 110 through the first air inlet hole 310 on the air duct shell 300, thereby sucking the external air flow into the annular acceleration chamber 210 through the first air inlet hole 310, and the air flow is pressurized and accelerated in the annular acceleration chamber 210.

[0072] It can also be understood that the wind wheel 200 rotates, and through the turbulent effect of the wind blades 240 thereon, a vortex is formed to increase pressure on the airflow in the annular acceleration chamber 210, thereby accelerating the flow of the airflow.

[0073] In addition, see Figure 2 and Figure 4 The housing 100 further includes a rotary drive member 600, the output end of which is connected to the wind wheel 200 to drive the wind wheel 200 to rotate around its own axis. Specifically, the rotary drive member 600 may be an electric motor or a motor, and the output end of the rotary drive member 600 is coaxially connected to the annular frame 230 of the wind wheel 200, thereby driving the annular frame 230 to drive all the blades 240 thereon to rotate.

[0074] It should also be noted that see Figure 2 , Figure 4 , Figure 6 and Figure 7 In the present application, the air duct housing 300 is in the shape of a circular ring, the upper end of the air duct housing 300 is open, forming a first air inlet hole 310 connected to the vent 110, the first air inlet hole 310 is in the shape of a circular hole, and the first air inlet hole 310 is located at the upper end of the wind wheel 200. The lower end of the air duct housing 300 is connected to the housing 100.

[0075] It is easy to understand that the air duct shell 300 surrounds and covers the wind wheel 200, thereby forming an annular air duct cavity 320 around the wind wheel 200 and the shell 100. Along the radial direction of the wind wheel 200, the annular air duct cavity 320 and the annular acceleration cavity 210 formed by the wind wheel 200 are continuously distributed and interconnected. It can also be understood that the axis of the annular acceleration cavity 210 coincides with the axis of the annular air duct cavity 320.

[0076] In this way, the airflow that is pressurized and accelerated in the annular acceleration chamber 210 flows into the annular air duct chamber 320 under the rotation of the wind wheel 200. During the flow process in the annular air duct chamber 320, the airflow is also pressurized and accelerated under the rotation of the wind wheel 200.

[0077] It should also be noted that see Figure 2 , Figure 3 and Figure 8 In the present application, the shell 100 is formed with an annular air outlet 120 connected to the annular air duct cavity 320 at the bottom of the annular air duct cavity 320, which can be understood as: the bottom of the annular air duct cavity 320 is in a circular ring shape, the annular air outlet 120 coincides with the bottom of the annular air duct cavity 320, and the airflow in the annular air duct cavity 320 is thrown out from the annular air outlet 120 under the rotation of the wind wheel 200, thereby achieving the effect of sending air outward.

[0078] It should be understood that when the air outlet device of the present application is configured in a fan lamp, the air outlet device is vertically installed as a whole on the ceiling of the room, and the annular air outlet 120 on the shell 100 faces the floor of the room.

[0079] See also Figure 2 , Figure 4 and Figure 8 ,in Figure 8 The dotted arrow in the figure represents the direction of airflow. When the air outlet device is working, the wind wheel 200 rotates, and the annular acceleration chamber 210 formed by the wind wheel 200 is connected with the vent 110 on the housing 100 through the first air inlet 310 on the air duct shell 300, so that the external airflow is introduced into the annular acceleration chamber 210, and the airflow is pressurized and accelerated in the annular acceleration chamber 210. The airflow pressurized and accelerated in the annular acceleration chamber 210 flows into the annular air duct chamber 320 under the rotation of the wind wheel 200, and the airflow in the annular air duct chamber 320 is thrown out from the annular air outlet 120 at the bottom of the housing 100 under the rotation of the wind wheel 200, so as to achieve the effect of sending air outward.

[0080] Based on the above principles, further see Figure 5 , Figure 6 , Figure 7 and Fig. 9In the present application, the outer diameter of the first air inlet 310 is d1, the outer diameter of the wind wheel 200 is d2, and the outer diameter D of the annular air duct cavity 320 satisfies the following relationship: 0.7≤(d1 / d2)≤0.75, 1.3≤(D / d2)≤1.4.

[0081] It can be understood that when the wind wheel 200 rotates, the external airflow flows axially into the annular acceleration chamber 210 of the wind wheel 200 from the first air inlet hole 310 on the air duct housing 300 .

[0082] The first air inlet 310, the wind wheel 200, the annular acceleration chamber 210, the air duct housing 300, the annular air duct chamber 320 and the annular air outlet 120 are all regular rotating bodies. The outer diameter d1 of the first air inlet 310 is the air inlet diameter of the wind wheel 200, and the outer diameter d2 of the wind wheel 200 is also the diameter of the wind wheel 200 and the diameter of the annular acceleration chamber 210.

[0083] It is easy to understand that the annular air duct cavity 320 is a circular cavity, the outer diameter D of the annular air duct cavity 320 is the outer diameter of the circular ring, and the inner diameter of the annular air duct cavity 320 is equal to the inner diameter of the circular ring, that is, equal to the diameter of the wind wheel 200.

[0084] By rationally designing the outer diameter of the first air inlet hole 310 to be d1 and the outer diameter of the wind wheel 200 to be d2, and controlling the ratio d1 / d2 of the outer diameter d1 of the first air inlet hole 310 to the outer diameter d2 of the wind wheel 200 to be within the range of 0.7 to 0.75, the airflow can be more fully axially entered into the annular acceleration chamber 210 formed by the wind wheel 200, so that the airflow can be efficiently pressurized and accelerated in the annular acceleration chamber 210, thereby increasing the airflow rate. If the first air inlet hole 310 is too large or too small, the stability of the airflow entering the annular acceleration chamber 210 formed by the wind wheel 200 along the axial direction will be affected.

[0085] See also Figures 13 to 16 , Fig.13 This is a simulated cloud diagram of the air flow of the air outlet device of the present application when (D / d2)=1.2; Fig.14 This is a simulated cloud diagram of the air flow of the air outlet device of the present application when (D / d2)=1.3; Fig.15 This is a simulated cloud diagram of the air flow of the air outlet device of the present application when (D / d2)=1.4; Fig.16 This is a simulated cloud diagram of the outlet air flow of the air outlet device of the present application when (D / d2)=1.45.

[0086] Among them, Figures 13 to 16 In the figure, the vertical axis is the air supply distance, the unit is m, the depth of the grayscale corresponds to the size of the wind speed, the darker the grayscale, the smaller the wind speed, the lighter the grayscale, the larger the wind speed; the grayscale coverage width corresponds to the air supply range, and Figures 13 to 16The rotation speeds of the wind wheels 200 of the corresponding air outlet devices are the same, and at the same time, d1 / d2 are also equal, and 0.7≤(d1 / d2)≤0.75.

[0087] from Figures 13 to 16 It can be clearly seen that at a distance of 0.5 m from the annular air outlet 120, when the D / d2 of the air outlet device is 1.2, the wind speed is 1.11 m / s, when the D / d2 of the air outlet device is 1.3, the wind speed is 1.65 m / s, when the D / d2 of the air outlet device is 1.4, the wind speed is 2.24 m / s, and when the D / d2 of the air outlet device is 1.45, the wind speed is less than 1.65 m / s.

[0088] Similarly, at other positions away from the annular air outlet 120, when the D / d2 of the air outlet device is 1.3 and 1.4 respectively, the corresponding wind speed / air volume and air supply distance are greater than the wind speed / air volume and air supply distance corresponding to the D / d2 of the air outlet device being 1.2 and 1.45 respectively.

[0089] It can be concluded that when the outer diameter d2 of the wind wheel 200 and the outer diameter D of the annular air duct cavity 320 satisfy 1.3≤(D / d2)≤1.4, the wind speed, wind volume and wind distance of the air outlet device are effectively improved.

[0090] By reasonably designing the outer diameter D of the annular air duct cavity 320 and the outer diameter d2 of the wind wheel 200, and controlling the ratio D / d2 of the outer diameter D of the annular air duct cavity 320 to the outer diameter d2 of the wind wheel 200 within the range of 1.3 to 1.4, the airflow can flow out from the annular air outlet 120 more evenly, thereby increasing the air volume, air speed and air supply distance.

[0091] It is not difficult to understand that the air outlet device of the present application, through the coordinated arrangement of the shell 100, the wind wheel 200 and the air duct shell 300, reasonably designs the outer diameter of the first air inlet hole 310 to be d1 and the outer diameter of the wind wheel 200 to be d2, and controls the ratio d1 / d2 of the outer diameter d1 of the first air inlet hole 310 to the outer diameter d2 of the wind wheel 200 to be within the range of 0.7 to 0.75, reasonably designs the outer diameter D of the annular air duct cavity 320 and the outer diameter d2 of the wind wheel 200, and controls the ratio D / d2 of the outer diameter D of the annular air duct cavity 320 to the outer diameter d2 of the wind wheel 200 to be within the range of 1.3 to 1.4, which can make the airflow flow out of the annular air outlet 120 more evenly, and increase the air volume, air speed and air supply distance.

[0092] In some embodiments of the present application, see Figure 4 and Figure 5A second air inlet hole 220 is provided on one side of the wind wheel 200 close to the first air inlet hole 310 . The first air inlet hole 310 , the second air inlet hole 220 and the annular acceleration chamber 210 are coaxially connected in sequence, and the outer diameter of the first air inlet hole 310 is less than or equal to the outer diameter of the second air inlet hole 220 .

[0093] Specifically, the second air inlet hole 220 is provided at the top of the wind wheel 200. The second air inlet hole 220 and the first air inlet hole 310 are both circular holes, and the two are coaxial. Along the axial direction of the wind wheel 200 and in the direction close to the annular air outlet 120, the first air inlet hole 310, the second air inlet hole 220 and the annular acceleration chamber 210 are coaxially connected in sequence.

[0094] By opening the second air inlet hole 220 on the side of the wind wheel 200 close to the first air inlet hole 310, and making the outer diameter of the first air inlet hole 310 less than or equal to the outer diameter of the second air inlet hole 220, the vertical projection of the first air inlet hole 310 relative to the shell 100 is within the vertical projection of the second air inlet hole 220 relative to the shell 100 or coincides with the vertical projection of the second air inlet hole 220 relative to the shell 100.

[0095] In this way, the airflow from the first air inlet 310 can flow more fully into the annular acceleration chamber 210 to be pressurized and accelerated, thereby improving the efficiency of the annular acceleration chamber 210 formed by the wind wheel 200 in pressurizing and accelerating the airflow.

[0096] Further, see Fig. 9 and Fig.10 The second air inlet hole 220 and the first air inlet hole 310 are spaced apart from each other along the axial direction of the wind wheel 200, and the axial distance d4 between the second air inlet hole 220 and the first air inlet hole 310 satisfies: 3mm<d4<8mm.

[0097] Specifically, the top of the wind wheel 200 is spaced from the top of the air duct housing 300, and a clearance gap is formed therebetween. The second air inlet hole 220 is provided at the top of the wind wheel 200, and correspondingly, the first air inlet hole 310 is provided at the top of the air duct housing 300. The spacing of the clearance gap formed between the top of the wind wheel 200 and the top of the air duct housing 300 is equal to the axial spacing d4 between the second air inlet hole 220 and the first air inlet hole 310, and d4 satisfies: 3mm<d4<8mm.

[0098] Such arrangement, on the one hand, avoids structural interference between the wind wheel 200 and the air duct shell 300, ensures that a safe gap is formed between the wind wheel 200 and the air duct shell 300, so that the wind wheel 200 can rotate stably; on the other hand, it can reduce the amount of air that flows into the annular air duct cavity 320 from the gap between the second air inlet hole 220 and the first air inlet hole 310 without being pressurized and accelerated by the wind wheel 200, reduce the air intake leakage between the wind wheel 200 and the air duct shell 300, and also improve the efficiency of the annular acceleration cavity 210 formed by the wind wheel 200 in pressurizing and accelerating the airflow.

[0099] In some embodiments of the present application, see Figure 2 and Figure 3 An annular grille 130 is formed on the housing 100 , and opposite ends of the annular grille 130 are respectively connected to opposite ends of the annular air outlet 120 to cover the annular air outlet 120 . The annular grille 130 divides the annular air outlet 120 into a plurality of sub-air outlets 121 .

[0100] Understandably, see Figure 2 , Figure 3 , Fig. 9 , Fig.11 and Fig.12 The annular grille 130 and the annular air outlet 120 are both in annular shape, the difference between the outer diameter and the inner diameter of the annular air outlet 120 is the ring width d3 of the annular air outlet 120, and the ring width d3 of the annular air outlet 120 is equal to half of the difference between the outer diameter of the annular air duct cavity 320 and the outer diameter d2 of the wind wheel 200. The ring width of the annular grille 130 is equal to the ring width d3 of the annular air outlet 120, so that the annular grille 130 completely covers the annular air outlet 120. It can also be understood that the vertical projection of the annular air outlet 120 coincides with the vertical projection of the annular grille 130, so that the annular grille 130 divides the annular air outlet 120 into multiple sub-air outlets 121.

[0101] By forming an annular grille 130 covering the annular air outlet 120 on the shell 100, the annular grille 130 divides the annular air outlet 120 into a plurality of sub-air outlets 121, so that the airflow in the annular air duct cavity 320 can be delivered more evenly, thereby increasing the air flow rate of the annular air outlet 120, thereby increasing the air volume, air speed and air delivery distance.

[0102] Further, see Fig.12 The annular grille 130 includes a plurality of radial ribs 131 spaced apart along the circumference of the annular air outlet 120 , and the angles formed by two adjacent radial ribs 131 are equal.

[0103] Specifically, both ends of the radial ribs 131 are connected to the inner ring and the outer ring of the annular grille 130 , respectively, and all the radial ribs 131 are integrally formed with the inner ring and the outer ring of the annular grille 130 , thereby improving the overall processing efficiency of the annular grille 130 .

[0104] It can be understood that the radial ribs 131 are in the shape of long strips, all radial ribs 131 are radially distributed, and the angle formed by two adjacent radial ribs 131 can be understood as the angle between the plane where the radial ribs 131 are located and the plane where the adjacent radial ribs 131 are located. A sub-air outlet 121 is formed between two adjacent radial ribs 131.

[0105] By setting a plurality of radial rib blocks 131 and making the angles formed by two adjacent radial rib blocks 131 equal, all the radial rib blocks 131 are radially distributed along the circular trajectory of the annular air outlet 120, thereby dividing the annular air outlet 120 into a plurality of sub-air outlets 121 with equal areas, further enabling the airflow in the annular air duct cavity 320 to be delivered more evenly, thereby increasing the air flow rate of the annular air outlet 120, and further increasing the air volume, air speed and air supply distance.

[0106] Further, see Figure 3 and Fig.12 The number of radial ribs 131 is n1, and the angle formed by two adjacent radial ribs 131 is β. n1 and β satisfy: β=360 / n1, 12<n1≤24, that is, 15°≤β<30°.

[0107] See also Fig.17 and Fig.18 , Fig.17 This is a simulated cloud diagram of the air flow of the air outlet device of the present application when n1=12, β=30°, Fig.18 This is a simulated cloud diagram of the outlet airflow of the air outlet device of the present application when n1=24, β=15°. Fig.17 and Fig.18 The rest of the structure and related parameters of the air outlet device remain the same.

[0108] from Fig.17 and Fig.18 It can be clearly seen that when the number n1 of radial ribs 131 is 12 or 24, the air supply distance of the air outlet device can reach more than 2 m; when the number n1 of radial ribs 131 is 12, and the angle β formed by two adjacent radial ribs 131 is 30°, the air supply range increases. As the number n1 of radial ribs 131 increases to 24, the air supply range decreases, and the wind speed in the central area of ​​the air supply range is more concentrated, and the wind feeling is stronger.

[0109] It can be concluded that when the number n1 of radial ribs 131 and the angle β formed by two adjacent radial ribs 131 satisfy β=360 / n1 and 12<n1≤24, the air outlet speed, air volume and air outlet distance of the air outlet device all meet the normal air supply requirements and meet the user's usage needs.

[0110] Further, see Figure 3 , Fig. 9 , Fig.11 and Fig.12 The annular grille 130 further includes a plurality of annular ribs 132 spaced apart along the radial direction of the annular air outlet 120 . The annular ribs 132 are annular in shape, and the intervals between two adjacent annular ribs 132 are equal.

[0111] The distance between two adjacent annular rib blocks 132 can be understood as the distance between the circular rings where the two adjacent annular rib blocks 132 are located.

[0112] A plurality of radial ribs 131 distributed at circumferential intervals along the annular air outlet 120 and a plurality of annular ribs 132 distributed at radial intervals along the annular air outlet 120 divide the annular air outlet 120 into a plurality of sub-air outlets 121. This further enables the airflow in the annular air duct cavity 320 to be delivered more evenly, thereby increasing the air flow rate of the annular air outlet 120, and further increasing the air volume, air speed and air delivery distance.

[0113] Further, see Fig.12 , the number of the annular rib blocks 132 is n2, the spacing between two adjacent annular rib blocks 132 is a1, and n2, a1, D and d2 satisfy: a1=(D-d2) / (2*n2), 4≤n2<7.

[0114] By reasonably designing the outer diameter D of the annular air duct cavity 320, the outer diameter d2 of the wind wheel 200, the number n2 of the annular rib blocks 132 and the spacing a1 between two adjacent annular rib blocks 132, n2, a1, D and d2 can satisfy a1=(D-d2) / (2*n2), 4≤n2<7, the airflow can flow out of the annular air outlet 120 more evenly, thereby increasing the air volume, air speed and air supply distance.

[0115] In some embodiments, see Figure 2 , Figure 3 as well as Fig.11 The outer diameter of the annular rib block 132 gradually increases along the axial direction of the annular rib block 132 and in a direction away from the annular air outlet 120 .

[0116] Specifically, the annular rib block 132 is annular in shape, and the annular opening formed by the annular rib block 132 is flared or trumpet-shaped, so that an air outlet channel inclined relative to the axis of the annular air outlet 120 is formed between two adjacent annular rib blocks 132. The multiple air outlet channels formed by all the annular rib blocks 132 are inclined outwardly relative to the axis of the annular air outlet 120, and each air outlet channel has a certain extension length.

[0117] In this way, when the airflow in the annular air duct cavity 320 is thrown out from the annular air outlet 120 and enters the air outlet channel formed by the two adjacent annular rib blocks 132 under the rotation of the wind wheel 200, the inclined air outlet channel with a certain extension length can further accelerate the airflow, and at the same time make the airflow flow outwardly from the outlet end of the air outlet channel. That is, the inclined air outlet channel with a certain extension length can make the airflow ejected outward at a higher flow rate, thereby increasing the air outlet speed and air outlet range of the air outlet device, and thus increasing the air outlet volume, air outlet speed and air supply distance.

[0118] Further, see Fig. 9 and Fig.11 The angle α between the line between one end of the annular rib block 132 close to the annular air outlet 120 and the end of the annular rib block 132 far from the annular air outlet 120 and the axis of the annular air outlet 120 satisfies: 30°≤α<45°.

[0119] Furthermore, the length L of the line between one end of the annular rib block 132 close to the annular air outlet 120 and the end of the annular rib block 132 far from the annular air outlet 120 satisfies: 20 mm≤L≤35 mm.

[0120] It should be understood that the angle α between the line connecting the end of the annular rib block 132 close to the annular air outlet 120 and the line away from the annular air outlet 120 and the axis of the annular air outlet 120 is the inclination angle of the air outlet channel formed between two adjacent annular rib blocks 132 relative to the axis of the annular air outlet 120.

[0121] Similarly, the length L of the line between one end of the annular rib block 132 close to the annular air outlet 120 and the end of the annular rib block 132 far from the annular air outlet 120 is the length of the air outlet channel formed between two adjacent annular rib blocks 132 .

[0122] By designing the inclination angle of the air outlet channel formed between two adjacent annular rib blocks 132 relative to the axis of the annular air outlet 120 to be greater than or equal to 30° and less than 45° and the length of the air outlet channel to be greater than or equal to 20 mm and less than or equal to 35 mm, the air output of the air outlet device can be increased, and the air outlet speed can reach 7m / s. At the same time, the air supply distance reaches more than 2m, which also increases the air supply range, thereby improving the air supply effect and user experience of the entire air outlet device.

[0123] See also Figures 19 to 22 , Fig.19 This is a simulated cloud diagram of the air flow of the air outlet device of the present application when α=30°; Fig. 20 This is a simulated cloud diagram of the air flow of the air outlet device of the present application when α=35°; Fig.21 This is a simulated cloud diagram of the air flow of the air outlet device of the present application when α=40°; Fig. 22 This is a simulated cloud diagram of the outlet air flow of the air outlet device of the present application when α=45°. Figures 19 to 22 The rest of the structure and related parameters of the air outlet device remain the same.

[0124] from Figures 19 to 22 It can be clearly seen that when the inclination angle α of the air outlet channel formed between two adjacent annular rib blocks 132 relative to the axis of the annular air outlet 120 is equal to 30°, the air outlet wind field generated by the air outlet device is better, the wind feeling is strong, and the outlet wind speed, air supply distance and air supply range are all considerable.

[0125] As the inclination angle α of the air outlet channel formed between two adjacent annular rib blocks 132 relative to the axis of the annular air outlet 120 gradually increases, the outlet wind speed, air supply distance and air supply range of the air outlet device gradually decrease.

[0126] When the inclination angle α of the air outlet channel formed between two adjacent annular rib blocks 132 relative to the axis of the annular air outlet 120 is within the range of 30° and 40°, the air outlet wind field generated by the air outlet device is acceptable, and the outlet wind speed, air supply distance and air supply range can meet user requirements.

[0127] When the inclination angle α of the air outlet channel formed between two adjacent annular rib blocks 132 relative to the axis of the annular air outlet 120 is greater than or equal to 45°, the air outlet wind field generated by the air outlet device is very weak, the wind sensation basically disappears, and the outlet wind speed, air supply distance and air supply range cannot meet user requirements.

[0128] It can be concluded that when the inclination angle α of the air outlet channel formed between two adjacent annular rib blocks 132 relative to the axis of the annular air outlet 120 satisfies 30°≤α<45°, the air outlet speed, air volume and air outlet distance of the air outlet device all meet the normal air supply requirements and meet the user's usage needs.

[0129] In some embodiments of the present application, see Figure 1 and Figure 4 A plurality of ventilation openings 110 are circumferentially spaced apart on the side wall of the housing 100 , and a ventilation cavity 140 is formed between the housing 100 and the air duct shell 300 . The ventilation cavity 140 is connected to the first air inlet 310 .

[0130] Specifically, the air duct shell 300 has an annular cover structure, and the outer wall of the air duct shell 300 forms an annular arc surface. Along the axial direction of the air duct shell 300 and close to the first air inlet hole 310, the diameter of the air duct shell 300 gradually decreases, so that the ventilation cavity 140 forms an arc cavity, which accelerates the flow rate of the airflow along the ventilation cavity 140 to the first air inlet hole 310, and improves the air outlet efficiency of the air outlet device.

[0131] It should be noted that when the outer wall of the air duct shell 300 forms an annular arc surface and the diameter of the air duct shell 300 gradually decreases along the axial direction of the air duct shell 300 and close to the first air inlet hole 310, the outer diameter D of the annular air duct cavity 320 refers to the maximum outer diameter at the bottom end of the air duct shell 300.

[0132] It can be understood that when the wind wheel 200 rotates, the airflow is introduced into the ventilation cavity 140 from the vents 110 at various positions on the side wall of the shell 100, and flows into the first air inlet hole 310 along the arc trajectory of the ventilation cavity 140, and then enters the annular acceleration cavity 210 formed by the wind wheel 200 from the first air inlet hole 310 to obtain pressurization and speed increase, and then flows into the annular air duct cavity 320. Finally, the airflow in the annular air duct cavity 320 is thrown out from the annular air outlet 120 under the rotation of the wind wheel 200, thereby achieving the effect of quickly delivering air to the outside.

[0133] It is not difficult to understand that by opening a plurality of ventilation holes 110 on the circumferential side wall of the shell 100, when the wind wheel 200 rotates, the external air flow can flow into the first air inlet hole 310 along the radial direction of the shell 100, and then enter the annular acceleration chamber 210 formed by the wind wheel 200 along the axis from the first air inlet hole 310 to realize air intake, and finally flow out along the annular air outlet 120, thereby realizing the axial air intake and radial air outlet effect of the air outlet device, so that the air flow is ejected from the annular air outlet 120 from top to bottom in a large air volume state, thereby increasing the air volume, air speed and air supply distance.

[0134] Further, see Figure 1 and Figure 2 The air outlet device further includes a filter screen 400 , which is connected to the housing 100 and covers all the ventilation openings 110 .

[0135] Specifically, see Figure 2 The shell 100 includes a top cover 150, a support frame 160 and a base 170. The support frame 160 is connected between the top cover 150 and the base 170. The three form an annular shell. The peripheral wall of the support frame 160 forms a plurality of ventilation openings 110. The filter net 400 is connected to the peripheral wall of the support frame 160 along a ring shape to cover all the ventilation openings 110.

[0136] By setting a filter net 400 covering all the vents 110 on the shell 100, the filter net 400 can filter and remove dust from the airflow entering the vents 110, thereby improving the cleanliness of the airflow entering the annular acceleration chamber 210 and the airflow flowing out of the annular air outlet 120, thereby preventing the wind wheel 200 from being unusable due to excessive accumulation of dust, and at the same time, improving the user experience to a certain extent.

[0137] In addition, see Figure 1 and Figure 2 The embodiment of the present application further provides a fan light, which includes a lamp 500 and an air outlet device of any of the above embodiments.

[0138] The lamp 500 is installed at the bottom of the housing 100 and is coaxially distributed with the wind wheel 200 . The vertical projection of the wind wheel 200 is within the vertical projection of the lamp 500 or coincides with the vertical projection of the lamp 500 .

[0139] Specifically, the lamp 500 is a decorative lamp, which is used in combination with the air outlet device so that the fan lamp can achieve the functions of blowing air and providing lighting. At the same time, the lamp 500 is installed at the bottom of the housing 100 and is coaxially distributed with the wind wheel 200, making the fan lamp more beautiful as a whole.

[0140] It is not difficult to understand that the fan light of the embodiment of the present application not only has the functions of blowing and lighting, but also has better air volume, air speed and air supply distance, thereby improving the overall performance of the fan light.

[0141] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0142] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An air outlet device, It is characterized in that include: The outer wall of the shell is provided with a plurality of vents; A wind wheel is rotatably disposed in the housing, and the wind wheel forms an annular acceleration chamber for accelerating the flow of air; An air duct shell is arranged in the shell and forms an annular air duct cavity around the circumference of the wind wheel, the annular air duct cavity is connected with the annular acceleration cavity, and the air duct shell is provided with a first air inlet hole connected with the vent, the first air inlet hole is coaxially connected with the annular acceleration cavity; The shell is formed with an annular air outlet at the bottom of the annular air duct cavity, which is communicated with the annular air duct cavity; The outer diameter of the first air inlet hole is d1, the outer diameter of the wind wheel is d2, and the outer diameter D of the annular air duct cavity satisfies the following relationship: 0.7≤(d1 / d2)≤0.75, 1.3≤(D / d2)≤1.

4.

2. The air outlet device according to claim 1, It is characterized in that A second air inlet hole is provided on one side of the wind wheel close to the first air inlet hole, the first air inlet hole, the second air inlet hole and the annular acceleration chamber are coaxially connected in sequence, and the outer diameter of the first air inlet hole is less than or equal to the outer diameter of the second air inlet hole.

3. The air outlet device according to claim 2, It is characterized in that The second air inlet hole and the first air inlet hole are spaced apart from each other along the axial direction of the wind wheel, and the axial distance d4 between the second air inlet hole and the first air inlet hole satisfies: 3mm<d4<8mm.

4. The air outlet device according to claim 1, It is characterized in that An annular grille is formed on the shell, and opposite ends of the annular grille are respectively connected to opposite ends of the annular air outlet to cover the annular air outlet. The annular grille divides the annular air outlet into a plurality of sub-air outlets.

5. The air outlet device according to claim 4, It is characterized in that The annular grille includes a plurality of radial ribs distributed at intervals along the circumference of the annular air outlet, and the angles formed by two adjacent radial ribs are equal.

6. The air outlet device according to claim 5, It is characterized in that The number of the radial ribs is n1, the angle formed by two adjacent radial ribs is β, and n1 and β satisfy: β=360 / n1, 12<n1≤24.

7. The air outlet device according to any one of claims 4 to 6, It is characterized in that The annular grille also includes a plurality of annular ribs spaced apart along the radial direction of the annular air outlet. The annular ribs are annular in shape, and the intervals between two adjacent annular ribs are equal.

8. The air outlet device according to claim 7, It is characterized in that The number of the annular ribs is n2, the spacing between two adjacent annular ribs is a1, and n2, a1, D and d2 satisfy: a1=(D-d2) / (2*n2), 4≤n2<7.

9. The air outlet device according to claim 7, It is characterized in that The outer diameter of the annular rib block gradually increases along the axial direction of the annular rib block and in a direction away from the annular air outlet.

10. The air outlet device according to claim 9, It is characterized in that The angle α between the line connecting one end of the annular rib block close to the annular air outlet and the end of the annular rib block away from the annular air outlet and the axis of the annular air outlet satisfies: 30°≤α<45°; And the length L of the line between one end of the annular rib block close to the annular air outlet and the end of the annular rib block far from the annular air outlet satisfies: 20mm≤L≤35mm.

11. The air outlet device according to claim 1, It is characterized in that The plurality of ventilation openings are distributed on the side wall of the shell at intervals along the circumferential direction, a ventilation cavity is formed between the shell and the air duct shell, and the ventilation cavity is communicated with the first air inlet hole.

12. The air outlet device according to claim 11, It is characterized in that The air outlet device also includes a filter screen, which is connected to the shell and covers all the ventilation openings.

13. A fan light, It is characterized in that include: The air outlet device according to any one of claims 1 to 12; The lamp is installed at the bottom of the shell and is coaxially distributed with the wind wheel, and the vertical projection of the wind wheel is within the vertical projection of the lamp or coincides with the vertical projection of the lamp.

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