Ceiling fan and fan lamp

Abstract

The invention provides a ceiling fan and a fan lamp, and belongs to the technical field of household appliances. The ceiling fan comprises a shell, a fan assembly and a plurality of shielding tongues. An annular opening is formed in the bottom of the shell. The fan assembly is located in the shell, and the multiple shielding tongues surround the fan assembly and divide the annular opening into multiple air outlets. The shielding tongue is provided with a first air guide face, and the first air guide face faces the fan assembly. In the rotating direction of the fan assembly, the first air guide face sequentially comprises a first air guide part and a second air guide part. The second air guide part is in an arc shape, and the convex face of the second air guide part faces the fan assembly. Therefore, on one hand, the shielding tongue partially shields the annular opening, so that the air outlet volume of each air outlet is increased. And on the other hand, the first air guide face of the shielding tongue can guide air to the air outlet, the second air guide portion can enable the air outlet direction of the air outlet to be more deviated to the radial direction of the ceiling fan, and therefore the air supply distance of the ceiling fan is long.

Description

[0001] The present disclosure claims the priority of Chinese patent application No. 202322523767.X filed on September 15, 2023, and the utility model name “Ceiling fan and fan lamp with long air supply distance and uniform annular air outlet”, as well as the priority of Chinese patent application No. 202311198013.X filed on September 15, 2023, and the invention name “Ceiling fan and fan lamp with long air supply distance”, the entire contents of which are incorporated by reference in the present disclosure. Technical Field

[0002] The present disclosure relates to the technical field of household appliances, and in particular to a ceiling fan and a fan lamp. Background Art

[0003] Ceiling fans are commonly used household appliances.

[0004] There is a type of ceiling fan in the related art. The ceiling fan has a housing and a fan assembly, and the fan assembly is located inside the housing. The fan assembly is used to suck air from an air inlet at the top of the housing and deliver air through an annular air outlet at the bottom of the housing.

[0005] However, the air supply distance of the ceiling fan in the related art is relatively short, and the air can only be supplied in a small area below the ceiling fan. Summary of the invention

[0006] The present disclosure provides a ceiling fan and a fan light, which can solve the technical problems in the related art. The technical solutions of the ceiling fan and the fan light are as follows.

[0007] In a first aspect, the present disclosure provides a ceiling fan. The ceiling fan comprises a shell, a fan assembly and a plurality of shielding tongues. The shell has an air inlet and a ring-shaped opening at the bottom. The fan assembly is located inside the shell, and the plurality of shielding tongues surround the fan assembly and divide the ring-shaped opening into a plurality of air outlets. The shielding tongue has a first air guide surface, the first air guide surface faces the fan assembly, and along the rotation direction of the fan assembly, the first air guide surface sequentially comprises a first air guide portion and a second air guide portion. The second air guide portion is arc-shaped, and the convex surface of the second air guide portion faces the fan assembly, and / or the second air guide portion is retracted relative to the extension surface of the first air guide portion.

[0008] In one possible implementation, on a reference plane, an angle between a tangent at the end of the second air guide portion and a line connecting the end of the second air guide portion and the central axis of the annular opening is set to ω, 0°<ω<20°, wherein the reference plane is perpendicular to the central axis of the annular opening.

[0009] In a possible implementation, 5°<ω<20°.

[0010] In a possible implementation, assuming that the angle between the tangent of the head end of the first air guide portion and the line connecting the head end of the first air guide portion and the central axis of the annular opening is σ, then 10°<σ-ω<45°.

[0011] In a possible implementation, the first air guide portion is arc-shaped, and a concave surface of the first air guide portion faces the fan assembly, and the first air guide portion is used to gather airflow.

[0012] In a possible implementation, on a reference plane, let r1 be the distance between the head end of the first wind guide and the central axis of the annular opening, let r be the distance between the target point on the first wind guide and the central axis of the annular opening, and let θ be the angle between the line connecting the head end of the first wind guide and the central axis of the annular opening, and the line connecting the target point and the central axis of the annular opening, r=(m1+sinθ)r1+m2. Wherein, m1 and m2 are constant coefficients, the target point is any point on the first wind guide, and the reference plane is perpendicular to the central axis of the annular opening.

[0013] In a possible implementation, on a reference plane, the distance between the first end of the first air guide portion and the central axis of the annular opening is r1, the distance between the end of the first air guide portion and the central axis of the annular opening is r2, and 1.015<r2 / r1<1.2. The reference plane is perpendicular to the central axis of the annular opening.

[0014] In a possible implementation, on a reference plane, the distance between the first end of the first air guide and the central axis of the annular opening is r1, the radius of the fan assembly is R, and r1 / R≥1.05. The reference plane is perpendicular to the central axis of the annular opening.

[0015] In a possible implementation manner, at a connection between the first wind guide portion and the second wind guide portion, the first wind guide portion and the second wind guide portion are tangent to each other.

[0016] In a possible implementation, the number of the air outlets is 4-6, and the central angle occupied by each of the air outlets is 40°-65°.

[0017] In a possible implementation, the housing includes an outer shell and an inner shell, the outer shell surrounds the inner shell, the outer shell has the air inlet, and the annular opening is formed between the bottom of the outer shell and the bottom of the inner shell, and the shielding tongue is connected to the inner wall of the outer shell.

[0018] In a possible implementation, the shielding tongue further has a second wind guide surface, the head end of the first wind guide surface is connected to the head end of the second wind guide surface, and the air outlet is provided between the second wind guide surface of one shielding tongue and the first wind guide surface of an adjacent shielding tongue. Wherein, on a reference plane perpendicular to the central axis of the annular opening, the line between the head end of the first wind guide surface and the central axis of the annular opening is set as the first reference line, the line between the end of the first wind guide surface and the central axis of the annular opening is set as the second reference line, and the line between the end of the second wind guide surface and the central axis of the annular opening is set as the third reference line, and the third reference line is located between the first reference line and the second reference line.

[0019] In a possible implementation, on the reference plane, an angle between the first wind guide surface and the second wind guide surface at a connection point is set to δ, and 9°<δ<38°.

[0020] In a possible implementation manner, on the reference plane, an angle between the first reference line and the third reference line is assumed to be γ, and 0°<γ<15°.

[0021] In a possible implementation manner, on the reference plane, assuming that the angle between the second reference line and the third reference line is α, then 20°<α<30°.

[0022] In a possible implementation manner, on the reference plane, assuming that the angle between the tangent line of the head end of the first wind guide surface and the first reference line is A, then A>145°.

[0023] In a possible implementation, on the reference plane, assuming that an angle between a tangent line at the end of the second wind guide surface and a line connecting the second wind guide surface and a central axis of the annular opening is ε, then 0°<ε<20°.

[0024] In a possible implementation, the second wind guide surface is arc-shaped, and the concave surface of the second wind guide surface faces the first wind guide surface of the shielding tongue that is closest to the second wind guide surface.

[0025] In a possible implementation, the fan assembly includes a motor and an impeller, the motor includes a motor shaft and an outer rotor, the outer rotor is fixedly connected to the impeller, the motor shaft is fixedly connected to the inner shell, and the outer shell is fixed to the inner shell.

[0026] In a possible implementation manner, the inner wall of the annular opening is inclined outward relative to the central axis of the annular opening.

[0027] In a second aspect, the present disclosure provides a fan light, the fan light comprising a ceiling fan as described in any one of the first aspects and a light module. The light module is arranged at the bottom of a housing of the ceiling fan.

[0028] The technical solution provided by the present disclosure includes at least the following beneficial effects: The present disclosure provides a ceiling fan having a shielding tongue therein. On the one hand, the shielding tongue partially shields the annular opening, while the air output of the fan assembly remains unchanged, thereby increasing the air output of each air outlet. On the other hand, the first air guide surface of the shielding tongue can concentrate the wind blown out of the fan assembly to the air outlet. On the other hand, since the second air guide portion is arc-shaped, and the convex surface of the second air guide portion faces the fan assembly, or the second air guide portion is retracted relative to the extension surface of the first air guide portion, the second air guide portion can cause the wind to deflect radially toward the ceiling fan. The above three aspects can all increase the air supply distance of the ceiling fan.

[0029] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the description, are used to explain the principles of the present disclosure. In the drawings: Figure 1 is an exploded view of a fan lamp shown in an embodiment of the present disclosure; Figure 2 is a schematic diagram of the top of a fan lamp shown in an embodiment of the present disclosure; Figure 3 is a schematic diagram of a housing shown in an embodiment of the present disclosure; Figure 4 is a bottom view of a fan lamp shown in an embodiment of the present disclosure; Figure 5 is a schematic diagram of the internal structure of a fan lamp shown in an embodiment of the present disclosure; Figure 6 is a cross-sectional view of a fan lamp shown in an embodiment of the present disclosure; Figure 7 is a schematic diagram showing an angle ω and a shielding area of ​​a circular opening by a shielding tongue according to an embodiment of the present disclosure; Figure 8 is a schematic diagram of an angle ω and wind pressure at an air outlet shown in an embodiment of the present disclosure; Fig. 9 is a schematic diagram of the internal structure of a fan lamp shown in an embodiment of the present disclosure; Fig.10 is a line graph of r2 / r1 and average wind speed shown in an embodiment of the present disclosure; Fig.11 is a line graph of r2 / r1 and wind domain diameter shown in an embodiment of the present disclosure; Fig.12 is a line graph of r2 / r1 and air volume shown in an embodiment of the present disclosure; Fig.13 is a line graph of r1 / R and noise shown in an embodiment of the present disclosure; Fig.14 is a schematic diagram of the internal structure of a fan lamp shown in an embodiment of the present disclosure; Fig.15 is a schematic diagram of the internal structure of a fan lamp shown in an embodiment of the present disclosure; Fig.16 is a line graph of angle α and wind-sensing radius shown in an embodiment of the present disclosure; Fig.17 is a line graph of angle γ and maximum wind speed shown in an embodiment of the present disclosure; Fig.18 is a line graph of angle γ and wind domain range diameter shown in an embodiment of the present disclosure; Fig.19 is a schematic diagram of the internal structure of a fan lamp shown in an embodiment of the present disclosure; Fig. 20 is a schematic diagram of the internal structure of a fan lamp shown in an embodiment of the present disclosure; Fig.21 is a line graph of angle δ and maximum wind speed shown in an embodiment of the present disclosure; Fig. 22 is a line graph of angle δ and wind domain range diameter shown in an embodiment of the present disclosure; Fig.23 is a schematic diagram of the internal structure of a fan lamp shown in an embodiment of the present disclosure; Fig.24 is a schematic structural diagram of an impeller shown in an embodiment of the present disclosure; Fig.25 is a schematic diagram of a fan lamp shown in an embodiment of the present disclosure; Fig.26 is an exploded view of a fan lamp shown in an embodiment of the present disclosure; Fig. 27 is an exploded view of a fan lamp shown in an embodiment of the present disclosure; Fig.28 It is a schematic diagram of simulation of the airflow of the fan lamp in the related art shown in the embodiment of the present disclosure and the airflow of the fan lamp of the present disclosure; Fig.29 It is a schematic diagram of the wind range of the fan light in the related art shown in the embodiment of the present disclosure and the wind range of the fan light of the present disclosure.

[0031] Legend: 1. Shell, 101. Outer shell, 1010. Concave portion, 1011. First arc-shaped portion, 102. Inner shell, 1021. Second arc-shaped portion, 11. Air inlet, 12. Annular opening, 120. Air outlet; 2. fan assembly, 20. partition plate, 201. vent, 21. motor, 211. motor shaft, 212. outer rotor, 22. impeller, 220. balance hole; 3. shielding tongue, 31. first wind guide surface, 311. first wind guide portion, 312. second wind guide portion, 32. second wind guide surface; 4. Light module; 5. Mounting seat; a, first reference line, b, second reference line, c, third reference line, d, fourth reference line.

[0032] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0034] The present disclosure provides a ceiling fan. Figure 1-Figure 6 As shown, the ceiling fan includes a housing 1, a fan assembly 2 and a plurality of shielding tongues 3. The housing 1 has an air inlet 11 and a circular opening 12 at the bottom. The fan assembly 2 is located inside the housing 1, and a plurality of shielding tongues 3 surround the fan assembly 2 and divide the circular opening 12 into a plurality of air outlets 120. The plurality of shielding tongues 3 and the plurality of air outlets 120 are arranged at intervals. The number of shielding tongues 3 is equal to the number of air outlets 120.

[0035] In this way, on the one hand, the shielding tongue 3 partially shields the annular opening 12, while the air output of the fan assembly 2 remains unchanged, thereby increasing the air output of each air outlet 120, and then increasing the wind force of each air outlet 120, so that the air outlet 120 has a longer air supply distance and a larger air supply range.

[0036] In some examples, such as Figure 5 As shown, the shielding tongue 3 has a first wind guide surface 31 facing or toward the fan assembly 2. The distance between the first wind guide surface 31 and the central axis of the annular opening 12 gradually increases, so that the first wind guide surface 31 can guide the wind blown out of the fan assembly 2 to the air outlet 120.

[0037] In some examples, such as Figure 5 As shown, along the rotation direction of the fan assembly 2, the first wind guide surface 31 includes a first wind guide portion 311 and a second wind guide portion 312 in sequence. The first wind guide portion 311 is used to guide the wind to the second wind guide portion 312.

[0038] In some examples, such as Figure 5 As shown, the second air guide portion 312 is arc-shaped, and the convex surface of the second air guide portion 312 faces the fan assembly 2. On the one hand, the second air guide portion 312 can deflect the flow of wind toward the radial direction of the fan assembly 2. Thereby, the airflow has a larger radial component after flowing to the air outlet 120, which is conducive to the airflow blowing to a longer distance.

[0039] On the other hand, the radial deflection of the second air guide portion 312 toward the fan assembly 2 can reduce the central angle occupied by the shielding tongue 3 without reducing the air guide length of the first air guide surface 31, even if the central angle occupied by the air outlet 120 is larger. In this way, the wind blown out of each air outlet 120 can be continuous in the circumferential direction, that is, the annular opening 12 has a more uniform air outlet.

[0040] Of course, in other examples, the second air guide portion 312 may not have a convex surface (for example, the second air guide portion 312 is a plane). In this case, as long as the second air guide portion 312 is retracted relative to the extension surface of the first air guide portion 311, the above two effects can still be achieved.

[0041] In some examples, such as Figure 5 As shown, on the reference plane (or the projection pattern of the shielding tongue 3 along the central axis of the annular opening 12), let the angle between the tangent of the end of the second air guide portion 312 and the line connecting the end of the second air guide portion 312 and the central axis of the annular opening 12 be ω, then 0°<ω<20°.

[0042] In this way, the angle between the wind direction at the end of the second air guide 312 and the radial direction of the annular opening 12 can be made smaller, which is beneficial to increase the radial air supply distance of the ceiling fan. Among them, ω can be considered as the wind outlet angle at the end of the second air guide 312. Among them, the reference plane is perpendicular to the central axis of the annular opening 12. The central axis of the annular opening 12, the central axis of the fan assembly 2 and the central axis of the entire ceiling fan are collinear. In some examples, the reference plane is perpendicular to the central axis of the annular opening 12, and the reference plane is located between the top and bottom surfaces of the fan assembly 2, and intersects with the fan assembly 2.

[0043] Figure 7is a line graph of ω and the shielding area of ​​the annular opening 12 by the shielding tongue 3. The horizontal axis represents the angle ω between the end of the second air guide 312 and the line connecting the central axis of the annular opening 12, in degrees. The vertical axis represents the shielding area of ​​the annular opening 12 by the shielding tongue 3, in m2. Figure 7 It can be seen from the figure that as ω increases, the shielding area of ​​the annular opening 12 by the shielding tongue 3 gradually increases.

[0044] Figure 8 is a line graph of ω and the wind pressure at the air outlet 120, where the horizontal axis represents the angle ω between the end of the second air guide 312 and the line connecting the central axis of the annular opening 12, in degrees. The vertical axis represents the wind pressure at the air outlet 120, in Pa. Figure 8 It can be seen from the figure that as ω increases, the wind pressure at the air outlet 120 gradually increases, and the blowing distance of the air outlet 120 also gradually increases.

[0045] comprehensive Figure 7 and Figure 8 It can be seen that if ω>20°, on the one hand, the area of ​​the annular opening 12 blocked by the second air guide 312 is further increased, so that the area of ​​the air outlet 120 is smaller, and the wind pressure at each air outlet 120 is larger. However, since the part of the annular opening 12 corresponding to the shielding tongue 3 does not emit air, the airflow pressure difference at different parts of the annular opening 12 is large, which makes the air outlet of the annular opening 12 obviously uneven, so that the wind force felt by the user at different positions is obviously different. On the other hand, it will cause the angle between the wind direction at the end of the second air guide 312 and the radial direction of the shell 101 to be larger. When the airflow passes through the shell 102 and flows to the air outlet 120, the rotation direction of the airflow is larger, so that the airflow will rotate below the air outlet 120, and it is difficult to blow from the air outlet 120 to a farther distance.

[0046] Furthermore, in some examples, 5°<ω<20°. In this way, the curvature of the convex second air guide portion 312 will not be too large, thereby preventing the airflow from flowing too fast at the second air guide portion 312. If the airflow flows too fast, it will easily gather in the direction of the central axis of the annular opening 12, making it difficult to increase the air supply distance.

[0047] In some examples, such as Fig. 9 As shown, the first air guide portion 311 is arc-shaped, and the concave surface of the first air guide portion 311 faces the fan assembly 2. The first air guide portion 311 is used to gather airflow. In this way, when the airflow passes through the shielding tongue 3, it will first be concentrated at the first air guide portion 311, and then enter the air outlet 120 along the second air guide portion 312. In some examples, such as Fig. 9 As shown, along the rotation direction of the fan assembly 2, the angle between the tangent line of the first air guide portion 311 and the radial direction of the annular opening 12 gradually decreases.

[0048] It is understandable that if the first air guide portion 311 is set with the convex surface facing the fan assembly 2, the airflow will flow too fast in the first air guide portion 311 and the second air guide portion 312, which will make the airflow easily gather in the direction of the central axis of the annular opening 12, making it difficult to increase the air supply distance.

[0049] In some examples, such as Fig. 9 As shown, on the reference plane, let the distance between the head end of the first air guide 311 and the central axis of the annular opening 12 be r1, the distance between the target point on the first air guide 311 and the central axis of the annular opening 12 be r, and the angle between the line connecting the head end of the first air guide 311 and the central axis of the annular opening 12 and the line connecting the target point and the central axis of the annular opening 12 be θ, r=(m1+sinθ)r1+m2, where m1 and m2 are constant coefficients, and the target point is any point on the first air guide 311. In this way, the first air guide 311 can be made relatively flat, which is conducive to the first air guide gathering airflow.

[0050] In some examples, such as Fig. 9 As shown, assuming that the distance between the end of the first air guide portion 311 and the axis of the fan assembly 2 is r2, and 1.015<r2 / r1<1.2, it is beneficial for the first air guide portion 311 to gather the airflow, and it is also beneficial for the first air guide portion 311 to guide the airflow to the second air guide portion 312.

[0051] like Fig.10 As shown in the figure, the horizontal axis represents r2 / r1. The vertical axis represents the average wind speed in the wind range below the fan light. The wind range refers to the range defined by the circle where the wind speed is greater than 0.5m / s at 1.5m below the fan light. Fig.11 As shown in the figure, the horizontal axis represents r2 / r1. The vertical axis represents the wind range diameter, which refers to the diameter of the circle with a wind speed greater than 0.5m / s at 1.5m below the fan light, in meters. Fig.12 As shown in the figure, the horizontal axis represents r2 / r1. The vertical axis represents the wind volume, which is equal to the average wind speed × the area of ​​the wind range × the unit time (such as 60s), and the unit is cmm.

[0052] Combination Figure 10-12 It can be seen that when 1.015<r2 / r1<1.2, the wind speed and air volume of the fan lamp are both relatively large. If r2 / r1 is too small, the radial component of the airflow will be small when the airflow passes through the first sub-air guide surface 311, which may easily cause the airflow to rotate around the circumference of the fan assembly 2, making it difficult for the airflow to blow out from the air outlet 120. If r2 / r1 is too large, the airflow will flow too fast at the first sub-air guide surface 311, causing the airflow to easily gather in the direction of the central axis of the annular opening 12, making it difficult to increase the air supply distance.

[0053] In some examples, 1.1<r2 / r1<1.2.

[0054] In some examples, such as Fig. 9 As shown, the radius of the fan assembly 2 is R, and r / R≥1.05, so that the head end of the first air guide portion 311 has sufficient air guide space, which is conducive to guiding the airflow to the second air guide portion 312. Wherein, r is r1 or r2, or any value between r1-r2. For example, r is r1.

[0055] like Fig.13 As shown in the figure, the horizontal axis represents r1 / R. The vertical axis represents noise, the unit is dB (A). Fig.13 It can be seen that as r1 / R increases, the noise gradually decreases. And when r1 / R≥1.05, the noise value gradually becomes flat. Therefore, setting r1 / R≥1.05 can reduce the noise.

[0056] If r1 is too small, the gap between the head end of the first wind guide surface 31 and the edge of the impeller 22 will be small, and the wind guide space at the head end of the first wind guide surface 31 will be small, making it difficult for the wind blown out of the fan assembly 2 to pass through the shielding tongue 3, making it easy for the airflow to flow back. In addition, the noise is relatively large.

[0057] In some examples, such as Figure 5 As shown, assuming that the angle between the tangent line of the head end of the first air guide portion 311 and the line connecting the head end of the first air guide portion 311 and the central axis of the annular opening 12 is σ, then 10°<σ-ω<45°. In this way, the deflection angle of the airflow on the entire first air guide surface 31 can be reduced, which is beneficial to reducing airflow losses. At the same time, it is also beneficial for the first air guide portion 311 to gather airflow.

[0058] In some examples, such as Figure 5 As shown, at the connection between the first wind guide portion 311 and the second wind guide portion 312, the first wind guide portion 311 and the second wind guide portion 312 are tangent, so that the transition between the first wind guide portion 311 and the second wind guide portion 312 is smoother, thereby allowing the airflow to flow smoothly at the connection between the first wind guide portion 311 and the second wind guide portion 312.

[0059] In other examples, such as Fig.14As shown, along the rotation direction of the fan assembly 2, the distance between the first air guide portion 311 and the central axis of the annular opening 12 increases linearly. That is, the air guide surface at the first air guide portion 311 is a plane. In this way, it is also possible to avoid the air flow velocity at the first air guide portion 311 being too fast, which is conducive to gathering the air flow. It should be noted that in some examples, the first air guide surface 31 only includes the first air guide portion 311, that is, the first air guide surface 31 is a plane as a whole. Or it can be understood that both the first air guide portion 311 and the second air guide portion 312 are planes.

[0060] In some examples, such as Fig.15 As shown, the shielding tongue 3 also has a second wind guiding surface 32, the head end of the first wind guiding surface 31 is connected to the head end of the second wind guiding surface 32, and an air outlet 120 is provided between the second wind guiding surface 32 of one shielding tongue 3 and the first wind guiding surface 31 of the adjacent shielding tongue 3.

[0061] In some examples, such as Fig.15 As shown, on a reference plane perpendicular to the central axis of the annular opening 12 (or, on a projection pattern of multiple shielding tongues 12 along the central axis of the annular opening 12), a line between a head end of the first wind guide surface 31 or a head end of the second wind guide surface 32 and the central axis of the annular opening 12 is set as a first reference line a, a line between a terminal end of the first wind guide surface 31 and the central axis of the annular opening 12 is set as a second reference line b, a line between a terminal end of the second wind guide surface 32 and the central axis of the annular opening 12 is set as a third reference line c, and the third reference line c is located between the first reference line a and the second reference line b.

[0062] In the ceiling fan provided by the embodiment of the present disclosure, the angle occupied by the first air guide surface 31 of the shielding tongue 3 is the angle between the first reference line a and the second reference line b, and the angle occupied by the portion shielded by the shielding tongue 3 is the angle between the third reference line c and the second reference line b. Since the third reference line c is located between the first reference line a and the second reference line b, the angle occupied by the first air guide surface 31 is greater than the angle occupied by the portion shielded by the shielding tongue 3. In this way, it is achieved that the shielding tongue 3 has a first air guide surface 31 of sufficient length, and the length of the portion shielded by the shielding tongue 3 is shorter, so that the ceiling fan not only has a long air supply distance, but also the wind blown out of each air outlet can be continuous in the circumferential direction, and the annular air outlet of the ceiling fan is more uniform. In addition, the above design also makes the length of the second air guide surface 32 longer, and the second air guide surface 32 can also play a good air guiding effect.

[0063] In some examples, such as Fig.15 As shown, assuming that the angle between the second reference line b and the third reference line c is α, then 20°<α<30°. The angle between the second reference line b and the third reference line c is the central angle of the arc of the overlapping section of the shielding tongue 3 and the housing 1.

[0064] like Fig.16 As shown in the figure, the horizontal axis represents α, in degrees, and the vertical axis represents the wind feeling radius, that is, the blowing radius that the user can feel when using the ceiling fan provided by the embodiment of the present disclosure, in meters. Fig.16 It can be seen that as α increases, the wind-sensing radius also gradually increases. Since the wind-sensing radius is small when 0°<α<20°, α>20° can be set. When α>30°, although the wind-sensing radius is still increasing, it will cause the shielding tongue 3 to block too much of the annular opening 12, making the air outlet 120 too small, thereby making the ceiling fan air uneven. Therefore, in some examples, 20°<α<30°.

[0065] In some examples, such as Fig.15 As shown, assuming the number of shielding tongues 3 is z, then 130° / α<z<150° / α. That is, the angle of the shielding portion of the plurality of shielding tongues 3 is at least 130° and at most 150°.

[0066] According to experimental measurements, if z<130° / α, i.e., zα<130°, the angle occupied by the shielded portion of the plurality of shielding tongues 3 is too small, which will make the air outlet area of ​​each air outlet 120 larger, thereby making it difficult for the air outlet 120 to increase the wind pressure and wind force. At the same time, the length of the first air guide surface 31 and the second air guide surface 32 will be shorter, making the pressure-increasing path of the airflow on the first air guide surface 31 and the second air guide surface 32 shorter, which is not conducive to increasing the air pressure at the air outlet 120.

[0067] If z>150° / α, that is, zα>150°, the total shielding portion of the multiple shielding tongues 3 will be too large, which will cause the air outlet 120 to be too small. Although the air pressure at the air outlet 120 will be higher, since no air comes out from the shielding tongues 3, the wind blown out of the multiple air outlets 120 will be difficult to be continuous in the circumferential direction, making the annular air supply of the ceiling fan uneven.

[0068] In some examples, such as Fig.15As shown, the number of air outlets 120 is 4-6, and the central angle of each air outlet 20 is 40°-65°, and the sum of the central angles corresponding to the multiple air outlets 120 is 220°-250°. In this way, the air outlet of the ceiling fan can be more uniform and the wind pressure is larger. Among them, if the sum of the central angles of the multiple air outlets 120 is too large, that is, the central angles corresponding to the multiple shielding tongues 3 at the annular opening 12 are too small, then the length of the first air guide surface 31 is small, and the airflow pressure boosting path on the first air guide surface 31 is short, which is not conducive to increasing the air pressure of the airflow at the air outlet 120. If the sum of the central angles of the multiple air outlets 120 is too small, that is, the sum of the central angles corresponding to the multiple shielding tongues 3 at the annular opening 12 is too large, although the air pressure at the air outlet 120 will be higher, but because there is no air outlet at the annular opening 12 blocked by the shielding tongue 3, it will cause a large pressure difference in the circumference of the annular opening 12, making the ceiling fan uneven in air supply.

[0069] In some examples, such as Fig.15 As shown, 4≤z≤6. For example, z=6.

[0070] In some examples, such as Fig.17 As shown, on the reference plane, the line between the end of the first air guide 311 and the central axis of the annular opening 12 is the fourth reference line d, and the angle between the first reference line a and the fourth reference line d is β, and β<α. If β>α, the length of the first air guide 311 will increase, so that the impact between the airflow and the first air guide 311 is greater, so that the resistance of the wind blown out by the fan assembly 2 is greater, thereby increasing the load of the fan assembly 2.

[0071] In some examples, such as Fig.15 As shown, on the reference plane, the angle between the first reference line a and the third reference line c is set to be γ. Fig.17 As shown in the figure, the horizontal axis represents γ, in degrees. The vertical axis represents the maximum wind speed, which refers to the maximum wind speed at 1.5m below the fan light, in m / s. Fig.18 It can be seen from the figure that as γ increases, the maximum wind speed gradually decreases. Fig.18 As shown in the figure, the horizontal axis represents γ, in degrees. The vertical axis represents the wind range diameter, which refers to the diameter of the circle where the wind speed is greater than 0.5m / s at 1.5m below the fan light, in meters. Fig.18 It can be seen that with the increase of γ, the wind domain range gradually increases.

[0072] Combination Fig.17 and Fig.18It can be seen that if γ is too large, the airflow boosting effect is weak, the airflow boosting effect between the first air guide surface 31 and the second air guide surface 32 of the front and rear adjacent shielding tongues 3 is weak, the airflow velocity is small, and the blowing distance is short. Even if the air is discharged radially at a long distance, a relatively continuous air outlet effect cannot be formed. In addition, it is difficult to process the shielding tongue 3. If γ is too small, although the boosting effect is stronger, the circumferential airflow guiding effect of the airflow becomes worse, making it relatively more axially guided, the axial wind velocity is large, but the radial air outlet distance is short, and a good air outlet effect cannot be formed at a long radial distance.

[0073] In some examples, 0°<γ<15°. Further, in some examples, 3°<γ<10°.

[0074] In some examples, such as Fig.19 As shown, on the reference plane, the angle between the first wind guide surface 31 and the second wind guide surface 32 is set to δ, and δ is an acute angle. Wherein, δ is set to an acute angle so that part of the wind from the fan assembly 2 to the shielding tongue 3 is blown along the first wind guide surface 31 to the position of the air outlet 120 close to the first wind guide surface 31, and the other part is blown along the second wind guide surface 32 to the position of the other air outlet 120 close to the second wind guide surface 31.

[0075] In this way, for one air outlet 120, both the position close to the first air guide surface 31 and the position close to the second air guide surface 32 have a large air volume, so that the air outlet of the air outlet 120 is more uniform. Alternatively, it can also be described as that, since there is an air outlet 120 between the second air guide surface 32 of one shielding tongue 3 and the first air guide surface 31 of the adjacent shielding tongue 3, part of the airflow in each air outlet 120 comes from the first air guide surface 31 of one shielding tongue 3, and the other part comes from the second air guide surface 32 of another shielding tongue 3. Therefore, the wind blown out from the air outlet 120 is more uniform.

[0076] like Fig. 20 As shown, when δ is an obtuse angle, on the one hand, under the premise of not changing the air guiding lengths of the first air guiding surface 31 and the second air guiding surface 32, δ being an obtuse angle will cause the angle occupied by the portion shielded by the shielding tongue 3 to be greater than the angle occupied by the first air guiding surface 31, resulting in a longer length of the portion shielded by the shielding tongue 3, making the annular air outlet of the ceiling fan uneven.

[0077] On the other hand, it will also cause a greater impact between the air outlet of the fan assembly 2 and the second air guide surface 32, resulting in a greater airflow impact loss. Since there is an air outlet 120 between the first air guide surface 31 of the shielding tongue 3 and the second air guide surface 32 of the adjacent shielding tongue, if δ is too large, the airflow near the first air guide surface 31 of the air outlet 120 will be larger and the wind force will be stronger, while the airflow near the second air guide surface 32 of the air outlet 120 will be smaller and the wind force will be weaker, thereby causing uneven air outlet at the air outlet 120.

[0078] like Fig.21 As shown in the figure, the horizontal axis represents δ, in degrees. The vertical axis represents the maximum wind speed, which refers to the maximum wind speed at 1.5m below the fan light, in m / s. Fig. 22 As shown in the figure, the horizontal axis represents δ, in degrees. The vertical axis represents the wind range diameter, which refers to the diameter of the circle where the wind speed is greater than 0.5m / s at 1.5m below the fan light, in meters.

[0079] Combination Fig.21 and Fig. 22 It can be seen that if δ is too small, the guiding effect is not obvious, and the airflow pressurization effect between the first air guide surface 31 and the second air guide surface 32 of the front and rear adjacent shielding tongues 3 is weak, the airflow velocity is small, the blowing distance is short, and it is not conducive to forming a relatively continuous annular air outlet effect. In addition, if δ is too small, the connection between the first air guide surface 31 and the second air guide surface 32 cannot produce an effective fillet radius, making the shielding tongue 3 difficult to process, increasing the complexity and cost of processing the ceiling fan. If δ is too large, the maximum wind speed will decrease, and the diameter of the wind range will also decrease.

[0080] In some examples, 9°<δ<38°. Further, in some examples, 17°<δ<30°. For example, δ is 20°-22°. For another example, δ is 27°.

[0081] In some examples, such as Fig.23 As shown, the angle between the tangent of the head end of the first wind guide surface 31 and the first reference line a is A, and A>145°. In this way, the angle between the wind blown out by the fan assembly 2 and the first wind guide surface 31 can be reduced, thereby reducing the impact of the first wind guide surface 31 on the airflow, and further reducing the airflow loss. As a result, the wind force at the air outlet 120 close to the first wind guide surface 31 is close to the wind force close to the second wind guide surface 32, so that the air outlet 120 can be more uniform.

[0082] In some examples, such as Fig.23 As shown, the second wind guide surface 32 is arc-shaped, and the concave surface of the second wind guide surface 32 faces the first wind guide surface 31 of the shielding tongue 3 which is closest to the second wind guide surface 32. In some examples, on the reference plane, along the rotation direction of the fan assembly 2, the angle between the tangent of the second wind guide surface 32 and the radial direction of the annular opening 12 gradually decreases.

[0083] The technical solution provided by the embodiment of the present disclosure, on the one hand, compared with the second wind guide surface 32 being straight, setting the second wind guide surface 32 to be arc-shaped can increase the length of the second wind guide surface 32, thereby increasing the pressurization path of the airflow, which is conducive to increasing the wind pressure. Since the length of the first wind guide surface 31 is relatively long, increasing the length of the second wind guide surface 32 can reduce the pressure difference between the end of the first wind guide surface 31 and the end of the second wind guide surface 32, so that the air outlet 120 is more uniform. At the same time, it is also possible to reduce the central angle occupied by the shielding tongue 3 without reducing the air guide length of the first wind guide surface 31, even if the central angle occupied by the air outlet 120 is larger. In this way, the wind blown out of the annular opening 12 can be continuous, that is, the air outlet of the annular opening 12 is more uniform.

[0084] On the other hand, the second wind guiding surface 32 can deflect the wind flow in the radial direction of the fan assembly 2, so that the airflow has a larger radial component after flowing to the air outlet 120, which is conducive to the airflow blowing to a longer distance.

[0085] On the other hand, since the concave surface of the second air guide surface 32 faces the convex surface of the second air guide portion 312 of the other shielding tongue 3, the angle between the second air guide surface 32 and the second air guide portion 312 of the other shielding tongue 3 is small. In this way, the angle between the airflow near the second air guide portion 312 of the air outlet 120 and the airflow near the second air guide surface 32 is small, so that the wind direction at each location of the air outlet 120 is more uniform, thereby improving the uniformity of the air outlet 120.

[0086] In some examples, such as Fig.23 As shown, in the reference plane, let the angle between the tangent line at the end of the second air guide surface 32 and the line connecting the second air guide surface 32 and the central axis of the annular opening 12 be ε, then 0°<ε<20°. In this way, the angle between the wind direction at the end of the second air guide surface 32 and the radial direction of the annular opening 12 can be made smaller, so that the second air guide surface 32 can polarize the air outlet direction toward the radial direction of the ceiling fan, which is beneficial to increase the radial air supply distance of the ceiling fan.

[0087] In some examples, such as Figure 1 and Figure 6 As shown, the housing 1 comprises an outer shell 101 and an inner shell 102, wherein the outer shell 101 surrounds the inner shell 102. The outer shell 101 has an air inlet 11, and an annular opening 12 is formed between the bottom of the outer shell 101 and the bottom of the inner shell 102. The shielding tongue 3 is connected to the inner wall of the outer shell 101.

[0088] In some examples, such as Figure 1As shown, the top of the outer shell 101 has an air inlet 11. In other examples, the side wall of the outer shell 101 has an air inlet 11. Alternatively, the bottom of the inner shell 102 has an air inlet 11, and the impeller 22 of the fan assembly 2 faces the air inlet 11 below to suck air from the bottom of the fan. In this case, the fan can be directly connected to the ceiling as a ceiling fan.

[0089] In some examples, such as Figure 3 As shown, the top of the shielding tongue 3 abuts against the outer shell 101, and / or the bottom of the shielding tongue 3 abuts against the inner shell 102, and along the air outlet direction, as shown in FIG. Figure 3 and Figure 6 As shown, the size of the shielding tongue 3 in the vertical direction gradually decreases. Therefore, the distance between the outer shell 101, the inner shell 102 and the portion where the shielding tongue 3 abuts against each other also decreases. Since the total amount of air output of the fan assembly 2 remains unchanged, and the distance between the outer shell 101 and the inner shell 102 gradually decreases along the air flow direction, the air pressure of the air flow will gradually increase, thereby increasing the air supply distance of the fan.

[0090] In some examples, such as Figure 6 As shown, the outer shell 101 includes a first arc-shaped portion 1011, and the inner shell 102 includes a second arc-shaped portion 1021. The concave surface of the first arc-shaped portion 1011 faces the convex surface of the second arc-shaped portion 1021, and a plurality of shielding tongues 3 are located between the first arc-shaped portion 1011 and the second arc-shaped portion 1021. In this way, the airflow blown out by the fan assembly 2 can flow along the arc, so that the airflow flows more smoothly, avoiding airflow loss caused by a sudden change in the direction of the induced airflow.

[0091] In some examples, such as Figure 3 and Figure 6 As shown, the top and bottom of the shielding tongue 3 are both arc-shaped, and fit with the first arc-shaped portion 1011 and the second arc-shaped portion 1021 respectively. Among them, the angle between the top of the shielding tongue 3, and / or the bottom of the shielding tongue 3 and the horizontal plane gradually increases along the air outlet direction. Since the wind blown out by the fan assembly 2 is in the horizontal direction, and the ceiling fan needs to blow downward, the angle between the bottom of the shielding tongue 3 and the horizontal plane gradually increases along the air outlet direction, which can gradually guide the airflow to the vertical direction.

[0092] In some examples, such as Figure 6 As shown, the maximum dimension of the shielding tongue 3 in the vertical direction is d1, and the minimum dimension is d2, 2.5<d1 / d2<7. <d1 / d2<6。

[0093] Since the diameter of the outer shell 101 and the diameter of the inner shell 102 are larger than the diameter of the fan assembly 2, if d1 / d2 is too small, it may still cause the ventilation area of ​​the annular opening 12 (the ventilation area between the end of the first arc portion 1011 and the end of the second arc portion 1021) to be larger than the ventilation area of ​​the edge of the fan assembly 2, thereby causing the flow velocity of the airflow in the air duct to gradually decrease, causing the airflow to easily generate vortices in the air duct, resulting in a shorter air supply distance of the annular opening 12.

[0094] If d1 / d2 is too large, although the ventilation area of ​​the annular opening 12 will be smaller than the ventilation area of ​​the edge of the fan assembly 2, the ventilation area of ​​the annular opening 12 will hinder the airflow, making the air output at the annular opening 12 too small, which is not conducive to increasing the air supply distance.

[0095] In some examples, such as Figure 6 As shown, the inner wall of the annular opening 12 is inclined outward relative to the central axis of the annular opening 12. In this way, the air outlet of the air outlet 120 is easily diffused outward, which is beneficial to increase the blowing area of ​​the fan. In addition, combined with the feature that the air outlet ends of the first air guide surface 31 or the second air guide surface 32 are inclined outward on the horizontal plane, the airflow discharged along the ends of the first air guide surface 31 and the second air guide surface 32 can form continuous air outlet in the radial direction when flowing through the air outlet 120, while minimizing the path loss when the radial spiral air is discharged downward, and also reducing the wind loss caused by the airflow colliding with the inner wall of the shell 102.

[0096] In some examples, such as Figure 3 As shown, the shielding tongue 3 and the housing 101 are an integral structure, the housing 101 and the shielding tongue 3 are integrally formed, the housing wall of the housing 101 is concave to form the shielding tongue 3, and the outer wall of the housing 101 has a recessed portion 1010 corresponding to the shielding tongue 3. In this way, the connection strength between the shielding tongue 3 and the housing 101 can be enhanced, and the processing difficulty of the shielding tongue 3 and the housing 101 can be reduced.

[0097] Of course, in other examples, the shielding tongue 3 may also be an integral structure with the inner shell 102. Alternatively, the shielding tongue 3 is a separate part connected to the outer shell 101 and the inner shell 102 through a connecting component.

[0098] In some examples, the inner shell 102 is connected to the bottom of the shielding tongue 3, thereby realizing the connection between the inner shell 102 and the outer shell 101. Since the airflow generated by the fan assembly 2 does not flow out from the position where the shielding tongue 3 is opposite to the annular opening 12, the connecting parts (such as bolts and screws, etc.) are arranged at the bottom of the shielding tongue 3, so as not to hinder the flow of the airflow.

[0099] In some examples, the outer wall surface of the housing 101 is covered with sound-absorbing cotton to reduce the noise generated by the flow of air.

[0100] The implementation of the fan assembly 2 is described below by way of example.

[0101] In some examples, the fan assembly 2 includes a motor 21 and an impeller 22. The impeller 22 is drivingly connected to the motor 21, and the impeller 22 is opposite to the air inlet 11. The fan assembly 2 can be a centrifugal fan or a diagonal flow fan.

[0102] Since the fan assembly 2 rotates relative to the housing 1, a certain gap is required between the fan assembly 2 and the housing 101, but this will cause the airflow to flow back along the gap, that is, the airflow enters the fan assembly 2 from the air inlet 11 and then flows back to the air inlet 11 from the gap. Therefore, in some examples, such as Fig.24 As shown, the fan assembly 2 has a partition plate 20, which is connected to the top surface of the impeller 22, and has a vent 201 on the partition plate 20, which is opposite to the air inlet 11. The partition plate 20 separates the gap between the impeller 22 and the housing 101, so that the airflow in the impeller 22 will not flow back to the air inlet 11, thereby ensuring that the air intake of the fan assembly 2 will not be lost, and then the air outlet at the air outlet 120 is larger.

[0103] In some examples, such as Fig.24 As shown, the air outlet end of the blades of the impeller 22 is sawtooth-shaped, which can reduce the noise at the air outlet end of the blades.

[0104] In some examples, such as Fig.24 As shown, the support plate of the impeller 22 is provided with a balancing hole 220. When the impeller 22 rotates, a relatively large air pressure will be generated on the air inlet side of the impeller 22. The balancing hole 220 is provided on the support plate of the impeller 22 to enable air to circulate on both sides of the support plate, thereby reducing the pressure difference on both sides of the support plate, and further allowing the impeller 22 to bear a smaller axial force.

[0105] In some examples, such as Fig.26 and Fig. 27 As shown, the motor 21 includes a motor shaft 211 and an outer rotor 212. The outer rotor 212 is fixedly connected to the impeller 22 and is used to drive the impeller 22 to rotate. Fig. 27 As shown, the motor shaft 211 is fixedly connected to the inner shell 102, and the outer shell 101 is fixed to the inner shell 102. That is, the outer shell 101 is suspended on the motor shaft 211 through the inner shell 102. Fig.26 As shown, the upper portion of the housing 1 does not need to be connected to the suspension rod and the mounting base 5 of the ceiling fan.

[0106] The present disclosure also provides a fan light. Figure 1 and Figure 4As shown, the fan lamp comprises the above-mentioned ceiling fan and a lamp module 4, and the lamp module 4 is arranged at the bottom of the housing 1 of the ceiling fan.

[0107] In some examples, the bottom of the inner shell 102 has a receiving groove. The light module 4 can directly set the light source in the receiving groove, and the inner shell 102 can be regarded as a mounting base for the light source. Alternatively, the light module 4 is an integral component and is detachably connected to the bottom of the inner shell 102.

[0108] In some examples, the lamp module 4 is circular, the lamp module 4 is disposed in the receiving groove, and the annular opening 12 surrounds the lamp module 4. In this way, when the air outlet 120 supplies air, the airflow can also dissipate heat for the lamp module 4.

[0109] Fig.28 FIG. 1 is a schematic diagram of the simulation of the airflow of the fan lamp in the related art and the airflow of the fan lamp in the present invention. Fig.28 It can be seen that the airflow direction of the fan lamp in the related art is very chaotic, that is, the air pressure of the fan lamp is small, and the airflow cannot be driven to flow in a relatively certain direction. However, the airflow direction of the fan lamp provided by the embodiment of the present disclosure is relatively certain, that is, the air pressure of the fan lamp is relatively large.

[0110] Fig.29 FIG. 1 is a schematic diagram showing the wind range of a fan light in the related art and the wind range of the fan light in the present invention. Fig.29 It can be seen that the blowing range of the fan lamp provided in the embodiment of the present disclosure is greater than the blowing range of the fan lamp in the related art.

[0111] It should be noted that, in some embodiments, the concave surface, convex surface, etc. referred to in the article refer to the general direction of the surface. In other embodiments, the concave surface may also be provided with a partial convex surface for other effects.

[0112] It should also be noted that the various structural features of the fan lamp (such as the shielding tongue 3) provided in the embodiment of the present disclosure can be combined arbitrarily. Alternatively, it can be described that the various examples provided in the embodiment of the present disclosure can be combined arbitrarily.

[0113] The above description is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A ceiling fan, characterized in that: The ceiling fan comprises a housing (1), a fan assembly (2) and a plurality of shielding tongues (3); The housing (1) has an air inlet (11) and a bottom with an annular opening (12); The fan assembly (2) is located inside the housing (1), and the plurality of shielding tongues (3) surround the fan assembly (2) and divide the annular opening (12) into a plurality of air outlets (120); The shielding tongue (3) has a first wind guide surface (31), the first wind guide surface (31) faces the fan assembly (2), and along the rotation direction of the fan assembly (2), the first wind guide surface (31) sequentially comprises a first wind guide portion (311) and a second wind guide portion (312); The second air guide portion (312) is arc-shaped, and the convex surface of the second air guide portion (312) faces the fan assembly (2), and / or the second air guide portion (312) is retracted relative to the extension surface of the first air guide portion (311).

2. The ceiling fan according to claim 1, characterized in that: On a reference plane, an angle between a tangent line at the end of the second air guide portion (312) and a line connecting the end of the second air guide portion (312) and the central axis of the annular opening (12) is assumed to be ω, 0°<ω<20°, wherein the reference plane is perpendicular to the central axis of the annular opening (12).

3. The ceiling fan according to claim 2, characterized in that: 5°<ω<20°.

4. The ceiling fan according to claim 2, characterized in that: On the reference plane, assuming that the angle between the tangent of the head end of the first air guide portion (311) and the line connecting the head end of the first air guide portion (311) and the central axis of the annular opening (12) is σ, then 10°<σ-ω<45°.

5. The ceiling fan according to any one of claims 1 to 4, characterized in that: The first air guide portion (311) is arc-shaped, and the concave surface of the first air guide portion (311) faces the fan assembly (2); the first air guide portion (311) is used to gather airflow.

6. The ceiling fan according to any one of claims 1 to 4, characterized in that: On a reference plane, assuming that the distance between the head end of the first air guide portion (311) and the central axis of the annular opening (12) is r1, the distance between the target point on the first air guide portion (311) and the central axis of the annular opening (12) is r, and the angle between the line connecting the head end of the first air guide portion (311) and the central axis of the annular opening (12) and the line connecting the target point and the central axis of the annular opening (12) is θ, r=(m1+sinθ)r1+m2; Wherein, m1 and m2 are constant coefficients, the target point is any point on the first air guide portion (311), and the reference plane is perpendicular to the central axis of the annular opening (12).

7. The ceiling fan according to any one of claims 1 to 4, characterized in that: On a reference plane, assuming that the distance between the head end of the first air guide portion (311) and the central axis of the annular opening (12) is r1, and the distance between the end end of the first air guide portion (311) and the central axis of the annular opening (12) is r2, 1.015<r2 / r1<1.2; Wherein, the reference plane is perpendicular to the central axis of the annular opening (12).

8. The ceiling fan according to any one of claims 1 to 4, characterized in that: On a reference plane, assuming that the distance between the first end of the first air guide portion (311) and the central axis of the annular opening (12) is r1, the radius of the fan assembly (2) is R, and r1 / R≥1.05; Wherein, the reference plane is perpendicular to the central axis of the annular opening (12).

9. The ceiling fan according to any one of claims 1 to 4, characterized in that: At the connection between the first air guide portion (311) and the second air guide portion (312), the first air guide portion (311) and the second air guide portion (312) are tangent to each other.

10. The ceiling fan according to any one of claims 1 to 4, characterized in that: The number of the air outlets (120) is 4-6; The central angle of each air outlet (120) is 40°-65°.

11. The ceiling fan according to any one of claims 1 to 4, characterized in that: The housing (1) comprises an outer shell (101) and an inner shell (102), wherein the outer shell (101) surrounds the inner shell (102); The outer shell (101) has the air inlet (11), and the annular opening (12) is formed between the bottom of the outer shell (101) and the bottom of the inner shell (102); The shielding tongue (3) is connected to the inner wall of the outer shell (101).

12. A fan light, characterized in that: The fan lamp comprises a ceiling fan and lamp module (4) as claimed in any one of claims 1 to 11; The lamp module (4) is arranged at the bottom of the housing (1) of the ceiling fan.

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