Fan lamp

Abstract

The utility model provides a fan lamp, and belongs to the technical field of household appliances. The fan lamp comprises a shell, a fan assembly, a plurality of shielding tongues and a lamp module. The multiple shielding tongues surround the fan assembly and divide the annular opening in the bottom of the shell into multiple air outlets. The shielding tongue is provided with a first air guide face and a second air guide face, and the head end of the first air guide face is connected with the head end of the second air guide face. Moreover, on a reference plane perpendicular to the central axis of the annular opening, the connecting line of the head end of the first air guide face and the central axis is set as a first reference line, and the second air guide face retracts relative to the first reference line. Thus, the angle occupied by the first air guide face is larger than the angle occupied by the shielding part of the shielding tongue, so that the shielding tongue is provided with the first air guide face which is long enough, and the shielding part of the shielding tongue is short. Therefore, air blown by the multiple air outlets can be blown out in a farther range in a whole flow mode, and the air outlet effect with certain continuity in the circumferential direction can be formed.

Description

[0001] The present disclosure claims priority to the Chinese patent application with the application number 202322523767.X, the utility model name "Ceiling fan and fan lamp with long air supply distance and uniform annular air outlet", filed on September 15, 2023, and the invention name "Ceiling fan and fan lamp with long air supply distance", filed on September 15, 2023, with the application number 202311198013.X, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

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

[0003] Ceiling fans are commonly used household appliances. The ceiling fan has a housing and a fan assembly. The fan assembly is located inside the housing, and the fan assembly sucks air from the air inlet of the housing and sends air to the outside through the annular opening at the bottom of the housing.

[0004] In related technologies, in order to increase the air supply distance of the above-mentioned type of ceiling fan, two shielding tongues are arranged inside the housing. The two shielding tongues shield multiple parts of the annular opening and separate the annular opening into multiple air outlets. In this way, under the premise that the air volume remains unchanged, the wind power at each air outlet is larger, thereby improving the air supply range of the fan.

[0005] However, on the one hand, in order to achieve good air guiding effect, the length of the air guiding surface of the shielding tongue cannot be too short. On the other hand, in order to make the air outlet of the multiple air outlets have certain continuity in the circumferential direction, the length of the part shielded by the shielding tongue cannot be too large. UTILITY MODEL CONTENT

[0006] The present disclosure provides a fan lamp that can solve the technical problems existing in related technologies. The technical scheme of the fan lamp is as follows.

[0007] The present disclosure provides a fan lamp. The fan lamp comprises a housing, a fan assembly, a plurality of shielding tongues and a lamp module. The housing has an air inlet and a bottom with an annular opening. The fan assembly is located inside the housing. The lamp module is arranged on the bottom of the housing, and the annular opening surrounds the lamp module. The plurality of shielding tongues surround the fan assembly and divide the annular opening into a plurality of air outlets. The shielding tongue has a first air guide surface and a second air guide surface, the leading end of the first air guide surface is connected with the leading end of the second air guide surface, and the second air guide surface of one shielding tongue and the first air guide surface of the adjacent shielding tongue have the air outlet therebetween. In a reference plane perpendicular to the central axis of the annular opening, the line between the leading end of the first air guide surface and the central axis of the annular opening is the first reference line, the line between the trailing end of the first air guide surface and the central axis of the annular opening is the second reference line, and the line between the trailing end of the second air guide surface and the central axis of the annular opening is the third reference line. The third reference line is between the first reference line and the second reference line. In the reference plane, the included angle between the first air guide surface and the second air guide surface at the connection is δ, and 9°<δ<38°.

[0008] In a possible implementation, 17°<δ<30°.

[0009] In a possible implementation, the included angle between the first reference line and the third reference line is γ, and 0°<γ<15°.

[0010] In a possible implementation, 3°<γ<10°.

[0011] In a possible implementation, in the reference plane, the distance between the leading end of the first air guide surface and the central axis of the annular opening is r1, and the radius of the fan assembly is R, and r1 / R≥1.05.

[0012] In a possible implementation, the number of air outlets is 4-6, and each air outlet occupies a central angle of 40°-65°.

[0013] In a possible implementation, the first air guide surface comprises at least a first sub-air guide surface, and the leading end of the first sub-air guide surface is connected with the leading end of the second air guide surface.

[0014] In the reference plane, the distance between the leading end of the first sub-air guide surface and the central axis of the annular opening is r1, and the distance between the trailing end of the first sub-air guide surface and the central axis of the annular opening is r2, and 1.015

[0015] In a possible implementation, the first sub-air guide surface is a plane.

[0016] In a possible implementation, the first air guide surface is a plane.

[0017] In a possible implementation, an angle between the second reference line and the third reference line is α, and 20°<α<30°.

[0018] In a possible implementation, an angle between a tangent line of the leading end of the first air guide surface and the first reference line is A, and A>145°.

[0019] In a possible implementation, an angle between a tangent line of the trailing end of the second air guide surface and a line connecting the trailing end of the second air guide surface and the central axis of the annular opening is ε, and 0°<ε<20°.

[0020] In a possible implementation, along a rotation direction of the fan assembly, the first air guide surface sequentially includes a first sub-air guide surface and a second sub-air guide surface. The second sub-air guide surface is arc-shaped, and a convex surface of the second sub-air guide surface faces the fan assembly.

[0021] In a possible implementation, an angle between a tangent line of the trailing end of the second sub-air guide surface and a line connecting the trailing end of the second sub-air guide surface and the central axis of the annular opening is ω, and 0°<ω<20°.

[0022] In a possible implementation, 5°<ω<20°.

[0023] In a possible implementation, an angle between a tangent line of the leading end of the first sub-air guide surface and a line connecting the leading end of the first sub-air guide surface and the central axis of the annular opening is σ, and 10°<σ-ω<45°.

[0024] In a possible implementation, the first sub-air guide surface is arc-shaped, and a concave surface of the first sub-air guide surface faces the fan assembly, and the first sub-air guide surface is used for gathering air flow.

[0025] In a possible implementation, in the reference plane, a distance between the leading end of the first sub-air guide surface and the central axis of the annular opening is r1, a distance between a target point on the first sub-air guide surface and the central axis of the annular opening is r, an angle between a line connecting the leading end of the first sub-air guide surface and the central axis of the annular opening and a line connecting the target point and the central axis of the annular opening is θ, and r=(m1+sinθ)r1+m2. Wherein, m1 and m2 are constant coefficients, and the target point is any point on the first sub-air guide surface.

[0026] In a possible implementation, the first sub-air guide surface and the second sub-air guide surface are tangent at the connection between the first sub-air guide surface and the second sub-air guide surface.

[0027] In a possible implementation, the second air guide surface is arc-shaped, and the concave surface of the second air guide surface faces the first air guide surface of the shielding tongue closest to the second air guide surface.

[0028] In a possible implementation, the housing includes an outer shell and an inner shell, and 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. The shielding tongue is connected to the outer shell or the inner shell. The lamp module is arranged at the bottom of the inner shell.

[0029] 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 fixedly connected to the inner shell.

[0030] In a possible implementation, the inner wall of the annular opening is inclined outward relative to the central axis of the annular opening.

[0031] The technical solutions provided by the present disclosure have at least the following beneficial effects:

[0032] The first air guide surface of the shielding tongue of the fan lamp occupies an angle between a first reference line and a second reference line, and the part shielded by the shielding tongue occupies an angle between a third reference line and the second reference line. Since the third reference line is located between the first reference line and the second reference line, the angle occupied by the first air guide surface is greater than the angle occupied by the part shielded by the shielding tongue. In this way, the shielding tongue has a first air guide surface with sufficient length, and the length of the part shielded by the shielding tongue is relatively short, so that the wind blown out by the fan lamp can be rectified to blow out to a farther range, and a circumferentially continuous air outlet effect can be formed.

[0033] In addition, by setting the included angle between the first air guide surface and the second air guide surface at the connection to be δ, and 9° < δ < 38°, the wind blown by the fan assembly to the shielding tongue is partially blown along the first air guide surface to a position close to the first air guide surface of the air outlet, and the other part of the wind is blown along the second air guide surface to a position close to the second air guide surface of the other air outlet. In this way, for one air outlet, the position close to the first air guide surface and the position close to the second air guide surface both have a large amount of wind, so that the air outlet of the single air outlet is relatively uniform. Moreover, by setting δ > 9°, it can be avoided that δ is too small, and the processing difficulty is reduced.

[0034] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings, which are incorporated in and form a part of the specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure. In the drawings:

[0036] Figure 1 is an exploded view of a fan lamp according to an embodiment of the present disclosure;

[0037] Figure 2 is a structural schematic view of a fan lamp according to an embodiment of the present disclosure;

[0038] Figure 3 is a schematic view of a housing according to an embodiment of the present disclosure;

[0039] Figure 4 is a bottom view of a fan lamp according to an embodiment of the present disclosure;

[0040] Figure 5 is a schematic view of an internal structure of a fan lamp according to an embodiment of the present disclosure;

[0041] Figure 6 is a sectional view of a fan lamp according to an embodiment of the present disclosure;

[0042] Figure 7 is a line graph of an angle a and a wind feeling radius according to an embodiment of the present disclosure;

[0043] Figure 8 is a line graph of an angle g and a maximum wind speed according to an embodiment of the present disclosure;

[0044] Figure 9 is a line graph of an angle g and a wind range diameter according to an embodiment of the present disclosure;

[0045] Figure 10 is a schematic view of an internal structure of a fan lamp according to an embodiment of the present disclosure;

[0046] Figure 11 is a schematic view of an internal structure of a fan lamp according to an embodiment of the present disclosure;

[0047] Figure 12 is a line graph of an angle d and a maximum wind speed according to an embodiment of the present disclosure;

[0048] Figure 13 is a line graph of an angle d and a wind range diameter according to an embodiment of the present disclosure;

[0049] Figure 14is a schematic view of an internal structure of a fan lamp according to an embodiment of the present disclosure;

[0050] Figure 15 is a line graph of r1 / R and noise according to an embodiment of the present disclosure;

[0051] Figure 16 is a schematic view of an angle ω and a shielding area of a shielding tongue to an annular opening according to an embodiment of the present disclosure;

[0052] Figure 17 is a schematic view of an angle ω and an air pressure of an air outlet according to an embodiment of the present disclosure;

[0053] Figure 18 is a schematic view of an internal structure of a fan lamp according to an embodiment of the present disclosure;

[0054] Figure 19 is a line graph of r2 / r1 and average wind speed according to an embodiment of the present disclosure;

[0055] Figure 20 is a line graph of r2 / r1 and a wind range diameter according to an embodiment of the present disclosure;

[0056] Figure 21 is a line graph of r2 / r1 and air volume according to an embodiment of the present disclosure;

[0057] Figure 22 is a schematic view of an internal structure of a fan lamp according to an embodiment of the present disclosure;

[0058] Figure 23 is a schematic view of an internal structure of a fan lamp according to an embodiment of the present disclosure;

[0059] Figure 24 is a schematic view of a structure of a fan assembly according to an embodiment of the present disclosure;

[0060] Figure 25 is a schematic view of a fan lamp according to an embodiment of the present disclosure;

[0061] Figure 26 is an exploded view of a fan lamp according to an embodiment of the present disclosure;

[0062] Figure 27 is an exploded view of a fan lamp according to an embodiment of the present disclosure;

[0063] Figure 28 is a schematic view of air flow of a fan lamp in related art and air flow of a fan lamp according to an embodiment of the present disclosure;

[0064] Figure 29Fig. 1 is a schematic diagram of a wind range of a fan lamp in the related art and a wind range of a fan lamp of the present disclosure.

[0065] Legend:

[0066] 1, housing, 101, outer shell, 1010, recess, 1011, first arc-shaped part, 102, inner shell, 1021, second arc-shaped part, 11, air inlet, 12, annular opening, 120, air outlet;

[0067] 2, fan assembly, 20, partition plate, 201, ventilation opening, 21, motor, 211, motor shaft, 212, outer rotor, 22, impeller, 220, balance hole;

[0068] 3, shielding tongue, 31, first air guide surface, 311, first sub-air guide surface, 312, second sub-air guide surface, 32, second air guide surface;

[0069] 4, lamp module;

[0070] 5, mounting seat;

[0071] a, first reference line, b, second reference line, c, third reference line, d, fourth reference line.

[0072] Through the above drawings, the specific embodiments of the present disclosure have been shown, and more detailed descriptions will be given hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present disclosure by any means, but to illustrate the concept of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0073] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be described in further detail below with reference to the drawings.

[0074] The embodiments of the present disclosure provide a ceiling fan. Wherein, the ceiling fan can be a fan lamp. As shown in Figures 1-6 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 the bottom has an annular opening 12. As shown in Figure 5 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 air guide surface 31 and a second air guide surface 32, the first end of the first air guide surface 31 is connected to the first end of the second air guide surface 32, and the second air guide surface 32 of one shielding tongue 3 and the first air guide surface 31 of the adjacent shielding tongue 3 have an air outlet 120 therebetween. Wherein, the first air guide surface 31 can be considered as facing the fan assembly 2.

[0075] The ceiling fan provided by the embodiments of the present disclosure has a shielding tongue 3. On the one hand, the shielding tongue 3 partially shields the annular opening 12, and the air volume of the fan assembly 2 does not change, thereby increasing the air volume of each air outlet 120, and further increasing the air power of each air outlet 120. Due to the relatively large air power at each air outlet 120, the air supply distance of the air outlet 120 is relatively long, and the air supply range is relatively large.

[0076] In some examples, as shown in Figure 5 The first air guide surface 31 of the shielding tongue 3 gradually increases the distance from the central axis of the annular opening 12, so that the first air guide surface 31 can concentrate the air blown by the fan assembly 2 to the air outlet 120.

[0077] In some examples, as shown in Figure 5 In the reference plane perpendicular to the central axis of the annular opening 12 (or the projection pattern of the shielding tongue 12 along the central axis of the annular opening 12), the connection line between the first end of the first air guide surface 31 or the first end of the second air guide surface 32 and the central axis of the annular opening 12 is the first reference line a, the connection line between the end of the first air guide surface 31 and the central axis of the annular opening 12 is the second reference line b, and the connection line between the end of the second air guide surface 32 and the central axis of the annular opening 12 is the third reference line c. The third reference line c is located between the first reference line a and the second reference line b.

[0078] 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 surface and the bottom surface of the fan assembly 2 and intersects the fan assembly 2. Figure 5 The pattern shown can also be understood as the projection pattern of the shielding tongue 3 along the central axis of the annular opening 12.

[0079] 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 part 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 part shielded by the shielding tongue 3. In this way, the shielding tongue 3 has a first air guide surface 31 with sufficient length, and the length of the part shielded by the shielding tongue 3 is relatively short, so that the ceiling fan can be blown to a farther range and can form a circumferentially continuous air outlet effect. Moreover, the above design also makes the length of the second air guide surface 32 relatively long, and the second air guide surface 32 can also have a good air guide effect.

[0080] In some examples, as shown in Figure 5As shown, let the included angle between the second reference line b and the third reference line c be a, then 20° < a < 30°. The included angle between the second reference line b and the third reference line c, that is, the central angle occupied by the arc of the coinciding segment of the shielding tongue 3 and the shell 1.

[0081] As shown, the horizontal coordinate in the figure represents a, in °, and the vertical coordinate represents the wind feeling radius, in m, that is, the blowing radius that a user can feel when using the ceiling fan provided by the embodiment of the present disclosure. Figure 7 As shown, the horizontal coordinate in the figure represents a, in °, and the vertical coordinate represents the wind feeling radius, in m, that is, the blowing radius that a user can feel when using the ceiling fan provided by the embodiment of the present disclosure. Figure 7 As can be seen from the above table, as a increases, the wind feeling radius also gradually increases. Since the wind feeling radius is small when 0° < a < 20°, a can be set to be greater than 20°. When a is greater than 30°, although the wind feeling radius is still increasing, it will cause the shielding tongue 3 to shield too much of the annular opening 12, resulting in too small an air outlet 120, thereby making the air outlet of the ceiling fan uneven. Therefore, in some examples, 20° < a < 30°.

[0082] As shown, let the number of shielding tongues 3 be z, then 130° / a < z < 150° / a. That is, the angle occupied by the part shielded by the plurality of shielding tongues 3 is at least 130° and at most 150°. Figure 5 As shown, let the number of shielding tongues 3 be z, then 130° / a < z < 150° / a. That is, the angle occupied by the part shielded by the plurality of shielding tongues 3 is at least 130° and at most 150°.

[0083] If z < 130° / a, that is, za < 130°, then the angle occupied by the part shielded by the plurality of shielding tongues 3 is too small, which will make the air outlet area of each air outlet 120 large, thereby making it difficult for the air outlet 120 to increase the air pressure and wind force. At the same time, it will also make the lengths of the first air guide surface 31 and the second air guide surface 32 short, making the air pressure path of the airflow at the first air guide surface 31 and the second air guide surface 32 short, which is not conducive to increasing the air pressure at the air outlet 120.

[0084] If z > 150° / a, that is, za > 150°, then the part shielded by the plurality of shielding tongues 3 occupies too much, which will result in too small an air outlet 120. Although it will make the air pressure at the air outlet 120 large, since there is no air outflow at the shielding tongue 3, it will make the air blown by the plurality of air outlets 120 discontinuous in the circumferential direction, making the annular air supply of the ceiling fan uneven.

[0085] Figure 5 As shown, the number of air outlets 120 is 4-6, and each air outlet 20 occupies a central angle of 40°-65°, and the sum of the central angles corresponding to the plurality of air outlets 120 is 220°-250°. In this way, the air outlet of the ceiling fan can be made more uniform and the air pressure can be made larger.

[0086] ​If the sum of the central angles of the plurality of air outlets 120 is too large, i.e., the corresponding central angles of the plurality of shielding tongues 3 at the annular opening 12 are too small, the length of the first air guide surface 31 is small, and the airflow is boosted in a short path of the first air guide surface 31, which is not conducive to increasing the air pressure of the airflow at the air outlet 120.

[0087] If the sum of the central angles of the plurality of air outlets 120 is too small, i.e., the sum of the corresponding central angles of the plurality of shielding tongues 3 at the annular opening 12 is too large, although the air pressure at the air outlet 120 is large, the shielding tongue 3 blocks the annular opening 12 without air outlet, which causes a large pressure difference in the circumferential direction of the annular opening 12, resulting in uneven air supply of the ceiling fan.

[0088] In some examples, as shown in Figure 5 , 4≤z≤6. For example, z=6.

[0089] In some examples, as shown in Figure 5 , on the reference plane, the angle between the first reference line a and the third reference line c is γ. As shown in Figure 8 , the horizontal coordinate in the figure represents γ, and the unit is °. The vertical coordinate represents the maximum wind speed, which refers to the maximum wind speed at 1.5 m below the fan lamp, and the unit is m / s. As can be seen from Figure 8 , the maximum wind speed gradually decreases as γ increases. As shown in Figure 9 , the horizontal coordinate in the figure represents γ, and the unit is °. The vertical coordinate represents the diameter of the wind range, which refers to the diameter of the circle with a wind speed greater than 0.5 m / s at 1.5 m below the fan lamp, and the unit is m. As can be seen from Figure 9 , the wind range gradually increases as γ increases.

[0090] As can be seen from Figure 8 and Figure 9 , 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 adjacent shielding tongues 3 is weak, the airflow speed is small, and the blowing distance is short. Even at a far distance in the radial direction, it is difficult to form a relatively continuous air outlet effect. Moreover, it is also difficult to process the shielding tongue 3. If γ is too small, the boosting effect is stronger, but the airflow circumferential guiding effect is poor, which makes it relatively more axial, the axial wind speed is large, but the radial air outlet distance is short, and it is also difficult to form a good air outlet effect at a far distance in the radial direction.

[0091] In some examples, 0°<γ<15°. Further, in some examples, 3°<γ<10°.

[0092] In some examples, as shown in Figure 10As shown, on the reference plane, let the angle between the connection point of the first air guide surface 31 and the second air guide surface 32 be δ, and let δ be an acute angle. Setting δ to an acute angle allows part of the air blown by the fan assembly 2 towards the shield tongue 3 to be blown along the first air guide surface 31 towards the air outlet 120 near the first air guide surface 31, and the other part to be blown along the second air guide surface 32 towards the other air outlet 120 near the second air guide surface 31.

[0093] Thus, for a single air outlet 120, the positions near the first guide surface 31 and the positions near the second guide surface 32 both have a larger air volume, resulting in a more uniform airflow from the air outlet 120. Alternatively, it can be described that since there is an air outlet 120 between the second guide surface 32 of one shielding tongue 3 and the first guide surface 31 of an adjacent shielding tongue 3, part of the airflow within each air outlet 120 originates from the first guide surface 31 of one shielding tongue 3, and the other part originates from the second guide surface 32 of the other shielding tongue 3. Therefore, the airflow from the air outlet 120 is more uniform.

[0094] like Figure 11 As shown, when δ is an obtuse angle, on the one hand, without changing the air guiding length of the first air guiding surface 31 and the second air guiding surface 32, the obtuse angle of δ will cause the angle occupied 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 shielding tongue 3, which makes the annular air outlet of the ceiling fan uneven.

[0095] On the other hand, it will also cause a large impact between the air outlet of the fan assembly 2 and the second air guide surface 32, resulting in a large airflow impact loss. Since there is an air outlet 120 between the first air guide surface 31 of the shield tongue 3 and the second air guide surface 32 of the adjacent shield tongue, if δ is too large, the airflow near the first air guide surface 31 of the air outlet 120 will be more and stronger, while the airflow near the second air guide surface 32 of the air outlet 120 will be less and weaker, resulting in uneven airflow at the air outlet 120.

[0096] like Figure 12 As shown in the figure, the horizontal axis represents δ, with the unit being °. The vertical axis represents the maximum wind speed, which is the maximum wind speed at a point 1.5m below the fan light, with the unit being m / s. Figure 13 As shown in the figure, the horizontal axis represents δ, with the unit being °. The vertical axis represents the diameter of the wind area, which is the diameter of the circle with a wind speed greater than 0.5 m / s at a distance of 1.5 m below the fan light, with the unit being m.

[0097] Combination Figure 12 and Figure 13It can be seen that if δ is too small, the airflow guiding effect is not obvious, and the pressurization effect on the airflow between the first air guide surface 31 and the second air guide surface 32 of the adjacent shielding tongue 3 is weak, the airflow velocity is low, the blowing distance is short, and it is not conducive to forming a relatively continuous circumferential air outlet effect. Furthermore, if δ is too small, an effective rounded corner radius cannot be generated at the connection between the first air guide surface 31 and the second air guide surface 32, 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 area will also decrease.

[0098] In some examples, 9° < δ < 38°. Further, in some examples, 17° < δ < 30°. For example, δ is 20°-22°. And yet another example, δ is 27°.

[0099] In some examples, such as Figure 14 As shown, let A be the angle between the tangent at the first end of the first guide surface 31 and the first reference line a, and let A > 145°. This reduces the angle between the air blown by the fan assembly 2 and the first guide surface 31, thereby reducing the impact of the first guide surface 31 on the airflow and thus reducing airflow loss. This makes the airflow force near the first guide surface 31 of the outlet 120 similar to that near the second guide surface 32, resulting in more uniform airflow from the outlet 120.

[0100] In some examples, such as Figure 14 As shown, the second air guide surface 32 is arc-shaped, and the concave surface of the second air guide surface 32 faces the first air guide surface 31 of the shielding tongue 3, which is closest to the second air 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 air guide surface 32 and the radial direction of the annular opening 12 gradually decreases.

[0101] The technical solution provided in this embodiment, on the one hand, increases the length of the second air guide surface 32 by making it arc-shaped compared to a straight second air guide surface 32, thereby increasing the pressurization path of the airflow and thus increasing the wind pressure. Furthermore, since the first air guide surface 31 is relatively long, increasing the length of the second air guide surface 32 reduces the pressure difference between the ends of the first and second air guide surfaces 31 and 32, resulting in more uniform airflow from the outlet 120. Simultaneously, it reduces 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 outlet 120 is relatively large. This ensures that the airflow from the annular opening 12 is continuous, i.e., the airflow from the annular opening 12 is more uniform.

[0102] On the other hand, the second air guide surface 32 can deflect the airflow direction radially towards the fan assembly 2, so that the airflow has a larger radial component after flowing to the air outlet 120, which is beneficial for the airflow to blow to a greater distance.

[0103] In some examples, such as Figure 14 As shown, on the reference plane, let the angle between the tangent 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°. This allows 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 to be smaller, enabling the second air guide surface 32 to radially polarize the airflow direction towards the ceiling fan, which is beneficial for increasing the radial air delivery distance of the ceiling fan.

[0104] In some examples, such as Figure 14 As shown, let r1 be the distance from the first end of the first air guide surface 31 to the central axis of the annular opening 12, and let R be the radius of the fan assembly 2, with r1 / R ≥ 1.05. This ensures that the first end of the first air guide surface 31 has sufficient air guiding space, which is beneficial for guiding the airflow to the air outlet 120.

[0105] like Figure 15 As shown in the figure, the horizontal axis represents r1 / R, and the vertical axis represents noise, in dB(A). From Figure 15 As can be seen, the noise gradually decreases as r1 / R increases. Furthermore, when r1 / R ≥ 1.05, the noise level gradually flattens out. Therefore, setting r1 / R ≥ 1.05 can reduce noise.

[0106] If r1 is too small, the gap between the first end of the first air guide surface 31 and the edge of the impeller 22 will be small, resulting in a smaller air guide space at the first end of the first air guide surface 31. This makes it difficult for the air blown out by the fan assembly 2 to pass through the shield tongue 3, causing the airflow to easily backflow. In addition, the noise will be greater.

[0107] The implementation of the first air guide surface 31 will be illustrated below.

[0108] In some examples, such as Figure 14 As shown, along the rotation direction of the fan assembly 2, the first air guide surface 31 sequentially includes a first sub-air guide surface 311 and a second sub-air guide surface 312. In some examples, the first sub-air guide surface 311 is used to guide the airflow to the second sub-air guide surface 312.

[0109] In some examples, such as Figure 14As shown, the second sub-guide face 312 is arc-shaped, and the convex surface of the second sub-guide face 312 faces the fan assembly 2. In one aspect, the second sub-guide face 312 can deflect the flow direction of the air towards the radial direction of the fan assembly 2, so that the air flow has a larger radial component after flowing out of the air outlet 120, which is conducive to blowing the air to a farther distance. Moreover, since the concave surface of the second guide face 32 faces the first guide face of the other shielding tongue 3, the included angle between the second guide face 32 and the second sub-guide face 312 of the other shielding tongue 3 is smaller. In this way, the included angle between the air flow close to the second sub-guide face 312 and the air flow close to the second guide face 32 is smaller, so that the air direction of the air outlet 120 is more uniform, and the uniformity of the air outlet of the air outlet 120 is improved.

[0110] On the other hand, the radial deflection of the second sub-guide face 312 towards the fan assembly 2 can reduce the central angle of the shielding tongue 3 without reducing the air guide length of the first guide face 31, that is, the central angle of the air outlet 120 is larger. In this way, the air blown out of the annular opening 12 has continuity, that is, the air outlet of the annular opening 12 is more uniform.

[0111] Of course, in other examples, the second sub-guide face 312 can also not have a convex surface (for example, the second sub-guide face 312 is a plane), as long as the second sub-guide face 312 is recessed relative to the extension surface of the first sub-guide face 311, the above two aspects can still be achieved.

[0112] In some examples, as shown in FIG. 6, the second sub-guide face 312 is arc-shaped, and the convex surface of the second sub-guide face 312 faces the fan assembly 2. In one aspect, the second sub-guide face 312 can deflect the flow direction of the air towards the radial direction of the fan assembly 2, so that the air flow has a larger radial component after flowing out of the air outlet 120, which is conducive to blowing the air to a farther distance. Moreover, since the concave surface of the second guide face 32 faces the first guide face of the other shielding tongue 3, the included angle between the second guide face 32 and the second sub-guide face 312 of the other shielding tongue 3 is smaller. In this way, the included angle between the air flow close to the second sub-guide face 312 and the air flow close to the second guide face 32 is smaller, so that the air direction of the air outlet 120 is more uniform, and the uniformity of the air outlet of the air outlet 120 is improved. Figure 14 As shown in FIG. 6, in the reference plane, the tangent line of the end of the second sub-guide face 312 is drawn, and the included angle between the tangent line and the line connecting the end of the second sub-guide face 312 and the central axis of the annular opening 12 is ω, then 0°<ω<20°. In this way, the included angle between the air direction of the end of the second sub-guide face 312 and the radial direction of the annular opening 12 is smaller, which is conducive to increasing the radial air supply distance of the ceiling fan. At the same time, the air direction of the end of the second sub-guide face 312 is close to the air direction of the end of the second guide face 32, so that the air outlet of the air outlet 120 is more uniform. Wherein, ω can be regarded as the air outlet angle of the end of the second sub-guide face 312.

[0113] Figure 16 The angle ω and the shielding area of the shielding tongue 3 to the annular opening 12 are shown in FIG. 7. The abscissa axis represents the included angle ω between the line connecting the end of the second sub-guide face 312 and the central axis of the annular opening 12, and the unit is °, and the ordinate axis represents the shielding area of the shielding tongue 3 to the annular opening 12, and the unit is m 2 As can be seen from FIG. 7, as ω increases, the shielding area of the shielding tongue 3 to the annular opening 12 gradually increases. Figure 16

[0114] ​Figure 17 Fig. 8 is a schematic view of the angle of ω and the air pressure at the air outlet 120, the horizontal axis represents the included angle ω between the end of the second sub-guide surface 312 and the central axis of the annular opening 12, in °, and the vertical axis represents the air pressure at the air outlet 120, in Pa. It can be seen from Fig. 8 that, as ω increases, the air pressure at the air outlet 120 gradually increases, and then the blowing distance of the air outlet 120 gradually increases. Figure 17

[0115] In summary, Figure 16 and Figure 17 it can be known that, if ω > 20°, on the one hand, the area of the annular opening 12 shielded by the second sub-guide surface 312 is further increased, so that the area of the air outlet 120 is smaller, and the air pressure at each air outlet 120 is larger. However, since the corresponding part of the annular opening 12 of the shielding tongue 3 does not blow air, the air pressure difference of different parts of the annular opening 12 is large, which makes the air blowing of the annular opening 12 obviously uneven, and the user feels the wind force obviously different at different positions. On the other hand, it will cause the included angle between the end of the second sub-guide surface 312 and the radial direction of the outer shell 101 to be larger, so that the air flow direction is larger when the air flow passes through the outer shell 102 to the air outlet 120, so that the air flow rotates below the air outlet 120, and it is difficult to blow from the air outlet 120 to a farther distance.

[0116] Further, in some examples, 5° < ω < 20°. In this way, the curvature of the convex second sub-guide surface 312 will not be too large, so as to avoid the air flow flowing too fast at the second sub-guide surface 312. If the air flow flows too fast, the air flow will easily gather in the direction of the central axis of the annular opening 12, so that it is difficult to increase the air blowing distance.

[0117] Next, the shape of the first sub-guide surface 311 is exemplarily described.

[0118] In some examples, as shown in Fig. 9, the first sub-guide surface 311 is arc-shaped, and the concave surface of the first sub-guide surface 311 faces the fan assembly 2, and the first sub-guide surface 311 is used to gather air flow. Figure 18 In some examples, as shown in Fig. 10, along the rotation direction of the fan assembly 2, the included angle between the tangent line of the first sub-guide surface 311 and the radial direction of the annular opening 12 also gradually decreases. In this way, when the air flow passes through the shielding tongue 3, it will first be concentrated at the first sub-guide surface 311, and then enter the air outlet 120 along the second sub-guide surface 312.

[0119] Figure 18

[0120] ​​​If the first sub-guide surface 311 is set as a convex surface facing the fan assembly 2, the air flow will flow too fast at the first sub-guide surface 311 and the second sub-guide surface 312, and thus the air flow will easily gather towards the central axis of the annular opening 12, and it is difficult to increase the air supply distance.

[0121] In some examples, as shown in FIG. 6, the distance between the end of the first sub-guide surface 311 and the axis of the fan assembly 2 is r2, and 1.015 < r2 / r1 < 1.2, which is beneficial to the first sub-guide surface 311 gathering the air flow and guiding the air flow to the second sub-guide surface 312. Figure 18

[0122] As shown in FIG. 7, the horizontal axis of the graph represents r2 / r1. The vertical axis represents the average wind speed of the wind range below the fan lamp, and the wind range refers to the range of the circle with a wind speed greater than 0.5 m / s at 1.5 m below the fan lamp. Figure 19 As shown in FIG. 8, the horizontal axis of the graph represents r2 / r1. The vertical axis represents the diameter of the wind range, which refers to the diameter of the circle with a wind speed greater than 0.5 m / s at 1.5 m below the fan lamp, and the unit is m. Figure 20 As shown in FIG. 9, the horizontal axis of the graph represents r2 / r1. The vertical axis represents the air volume, which is equal to the average wind speed x the area of the wind range x unit time (such as 60 s), and the unit is cmm. Figure 21

[0123] It can be seen that when 1.015 < r2 / r1 < 1.2, the wind speed and air volume of the fan lamp are both large. If r2 / r1 is too small, the radial component of the air flow will be small when the air flow passes through the first sub-guide surface 311, which will easily cause the air flow to rotate circumferentially around the fan assembly 2, and thus the air flow will be difficult to blow out from the air outlet 120. If r2 / r1 is too large, the air flow will flow too fast at the first sub-guide surface 311, and thus the air flow will easily gather towards the central axis of the annular opening 12, and it is difficult to increase the air supply distance. Figures 19-21 In some examples, 1.1 < r2 / r1 < 1.2.

[0124] In some examples, as shown in FIG. 10, the distance between the end of the first sub-guide surface 311 and the axis of the fan assembly 2 is r2, and 1.015 < r2 / r1 < 1.2, which is beneficial to the first sub-guide surface 311 gathering the air flow and guiding the air flow to the second sub-guide surface 312.

[0125] Figure 18 ​​​As shown, on the reference plane, the distance between the leading end of the first sub-guide surface 311 and the central axis of the annular opening 12 is r1, the distance between a target point on the first sub-guide surface 311 and the central axis of the annular opening 12 is r, the included angle between the line connecting the leading end of the first sub-guide surface 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, and r=(m1+sin θ)r1+m2. Here, m1 and m2 are constant coefficients, and the target point is any point on the first sub-guide surface 311. In this way, the first sub-guide surface 311 can be relatively flat, which is conducive to the first sub-guide surface 311 gathering the airflow.

[0126] In some examples, Figure 22 As shown, on the reference plane, the line connecting the trailing end of the first sub-guide surface 311 and the central axis of the annular opening 12 is the fourth reference line d, and the included 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 sub-guide surface 311 will increase, the impact between the airflow and the first sub-guide surface 311 will be larger, the resistance suffered by the airflow blown by the fan assembly 2 will be larger, and the load of the fan assembly 2 will be increased.

[0127] In some examples, as Figure 22 As shown, the tangent line of the leading end of the first sub-guide surface 311 and the included angle between the tangent line and the line connecting the leading end of the first sub-guide surface 311 and the central axis of the annular opening 12 are σ, and 10°<σ-ω<45°. In this way, the deflection angle of the airflow on the entire first guide surface 31 can be reduced, which is conducive to reducing the airflow loss. At the same time, it is also conducive to the first sub-guide surface 311 gathering the airflow.

[0128] In some examples, as Figure 22 As shown, at the connection between the first sub-guide surface 311 and the second sub-guide surface 312, the first sub-guide surface 311 and the second sub-guide surface 312 are tangent to each other, so that the transition of the first sub-guide surface 311 and the second sub-guide surface 312 is smoother, and the airflow can flow smoothly at the connection between the first sub-guide surface 311 and the second sub-guide surface 312.

[0129] In other examples, as Figure 23 As shown, along the rotation direction of the fan assembly 2, the distance between the first sub-guide surface 311 and the central axis of the annular opening 12 increases linearly. That is, the guide surface at the first sub-guide surface 311 is a plane. In this way, the flow speed of the airflow at the first sub-guide surface 311 can also be avoided to be too fast, which is conducive to gathering the airflow. It should be noted that in some examples, the first guide surface 31 only includes the first sub-guide surface 311, that is, the first guide surface 31 is a plane as a whole. Or it can be understood that the first sub-guide surface 311 and the second sub-guide surface 312 are both planes.

[0130] In some examples, as shown in Figure 1 and Figure 6 The housing 1 comprises an outer shell 101 and an inner shell 102, and the outer shell 101 encloses 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.

[0131] In some examples, as shown in Figure 1 The top of the outer shell 101 has an air inlet 11. In other examples, the sidewall 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 downward air inlet 11 to suck air from the bottom of the fan. At this time, the fan can be directly connected to the ceiling as a ceiling fan.

[0132] In some examples, as shown in Figure 3 and Figure 6 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 the size of the shielding tongue 3 in the vertical direction gradually decreases along the air outlet direction. Therefore, the distance between the abutting parts of the outer shell 101, the inner shell 102 and the shielding tongue 3 also decreases. Since the total air volume of the fan assembly 2 does not change, 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 gradually increases, thereby increasing the air supply distance of the fan.

[0133] In some examples, as shown in Figure 6 The outer shell 101 comprises a first arc-shaped part 1011, and the inner shell 102 comprises a second arc-shaped part 1021. The concave surface of the first arc-shaped part 1011 faces the convex surface of the second arc-shaped part 1021, and multiple shielding tongues 3 are located between the first arc-shaped part 1011 and the second arc-shaped part 1021. In this way, the air flow blown by the fan assembly 2 can flow along the arc shape, so that the air flow is more smooth, and the air flow loss caused by the sudden change of the air flow direction is avoided.

[0134] In some examples, as shown in Figure 3 and Figure 6 The top and bottom of the shielding tongue 3 are both arc-shaped and respectively fit the first arc-shaped part 1011 and the second arc-shaped part 1021. 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 air blown by the fan assembly 2 flows along the horizontal direction, and the ceiling fan needs to blow air 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 air flow to be close to the vertical direction.

[0135] In some examples, as shown in Figure 6As shown, the maximum vertical dimension of the shielding tongue 3 is d1, and the minimum vertical dimension is d2, where 2.5 < d1 / d2 < 7. Furthermore, 4 <d1 / d2<6。

[0136] Since the diameters of the outer shell 101 and the inner shell 102 are larger than the diameter of the fan assembly 2, if d1 / d2 is too small, the ventilation area of ​​the annular opening 12 (the ventilation area between the end of the first arc-shaped portion 1011 and the end of the second arc-shaped portion 1021) may still be larger than the ventilation area of ​​the edge of the fan assembly 2. This will cause the airflow velocity in the duct to gradually decrease, making it easier for the airflow to generate vortices in the duct, resulting in a shorter air delivery distance of the annular opening 12.

[0137] 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 obstruct the airflow, resulting in a small air volume at the annular opening 12, which is not conducive to increasing the air delivery distance.

[0138] 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 120 can easily diffuse outward, which is beneficial to increasing the blowing area of ​​the fan. Furthermore, combined with the feature that the air outlet ends of the first air guide surface 31 or the second air guide surface 32 are both inclined outward on the horizontal plane, the airflow exiting along the ends of the first air guide surface 31 and the second air guide surface 32 can achieve continuous airflow in the radial direction when flowing through the air outlet 120, while minimizing the path loss when spiraling downward in the radial direction, and also reducing the wind loss caused by the airflow colliding with the inner wall of the outer casing 102.

[0139] In some examples, such as Figure 3 As shown, the shielding tongue 3 and the outer shell 101 are integrally formed. The outer shell 101 and the shielding tongue 3 are integrally molded. The shielding tongue 3 is formed by the inward concavity of the shell wall of the outer shell 101, and the outer wall of the outer shell 101 has a recess 1010 corresponding to the shielding tongue 3. In this way, the connection strength between the shielding tongue 3 and the outer shell 101 can be enhanced, and the processing difficulty of the shielding tongue 3 and the outer shell 101 can be reduced.

[0140] Of course, in other examples, the shielding tongue 3 can also be an integral structure with the inner shell 102. Alternatively, the shielding tongue 3 can be a separate part connected to the outer shell 101 and the inner shell 102 via connecting components.

[0141] In some examples, the inner shell 102 is connected to the bottom of the shielding tongue 3, so as to realize the connection of 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 opposite to the annular opening 12 of the shielding tongue 3, the connecting components (such as bolts, screws and the like) are arranged at the bottom of the shielding tongue 3, so as not to hinder the flow of the airflow.

[0142] In some examples, the outer wall of the outer shell 101 is pasted with sound-absorbing cotton, so as to reduce the noise generated when the airflow flows.

[0143] Next, the implementation mode of the fan assembly 2 is exemplarily described.

[0144] In some examples, the fan assembly 2 comprises a motor 21 and an impeller 22. The impeller 22 is drivingly connected with the motor 21, and the impeller 22 is opposite to the air inlet 11. The fan assembly 2 can be a centrifugal fan or an inclined flow fan.

[0145] Since the fan assembly 2 rotates relative to the shell 1, a certain gap needs to exist between the fan assembly 2 and the outer shell 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.

[0146] Therefore, in some examples, as shown in Figure 24 , the fan assembly 2 has a partition plate 20, the partition plate 20 is connected with the top surface of the impeller 22, and the partition plate 20 has a ventilation opening 201 opposite to the air inlet 11. The partition plate 20 separates the gap between the impeller 22 and the outer shell 101, so that the airflow in the impeller 22 does not flow back to the air inlet 11, thereby ensuring that the air intake of the fan assembly 2 is not lost, and further making the air outlet at the air outlet 120 larger.

[0147] In some examples, as shown in Figure 24 , the air outlet end of the blade of the impeller 22 is sawtooth-shaped, which can reduce the noise of the air outlet end of the blade.

[0148] In some examples, as shown in Figure 24 , the support plate of the impeller 22 has a balance hole 220. When the impeller 22 rotates, a larger air pressure is generated on the air inlet side of the impeller 22. The balance hole 220 arranged on the support plate of the impeller 22 can make the air flow on both sides of the support plate, thereby reducing the pressure difference on both sides of the support plate, and further making the impeller 22 bear a smaller axial force.

[0149] In some examples, as shown in Figure 26 and Figure 27 , the motor 21 comprises a motor shaft 211 and an outer rotor 212. The outer rotor 212 is fixedly connected with the impeller 22 and is used to drive the impeller 22 to rotate. As shown in Figure 27As shown, the motor shaft 211 is fixedly connected with the inner shell 102, and the outer shell 101 is fixed with the inner shell 102. That is, the outer shell 101 is hung on the motor shaft 211 through the inner shell 102. In this way, as shown in FIG. 1B, the outer shell 101 is suspended in the air through the inner shell 102. Figure 25 As shown, the upper part of the shell 1 does not need to have a connection relationship with the suspending rod or the mounting seat 5 of the ceiling fan.

[0150] The disclosure embodiments also provide a fan lamp, as shown in Figure 1 and Figure 4 As shown, the fan lamp comprises the ceiling fan and the lamp module 4, and the lamp module 4 is arranged at the bottom of the shell 1 of the ceiling fan.

[0151] In some examples, the bottom of the inner shell 102 has a containing groove. The lamp module 4 can directly arrange the light source in the containing groove, and in this case, the inner shell 102 can be regarded as a mounting base of the light source. Alternatively, the lamp module 4 is an integral component and detachably connected with the bottom of the inner shell 102.

[0152] In some examples, the lamp module 4 is circular, the lamp module 4 is arranged in the containing groove, and the annular opening 12 surrounds the lamp module 4. In this way, when the air outlet 120 blows air, the airflow can also cool the lamp module 4.

[0153] Figure 28 is a simulation schematic diagram of the airflow of the fan lamp in the related art and the airflow of the fan lamp provided by the disclosure embodiments. From Figure 28 it can be seen that the direction of the airflow of the fan lamp in the related art is very chaotic, that is, the blowing air pressure of the fan lamp is small and cannot drive the airflow to flow in a relatively certain direction. The flow direction of the airflow of the fan lamp provided by the disclosure embodiments is relatively certain, that is, the blowing air pressure of the fan lamp is large.

[0154] Figure 29 is a schematic diagram of the wind range of the fan lamp in the related art and the wind range of the fan lamp provided by the disclosure embodiments. From Figure 29 it can be seen that the blowing range of the fan lamp provided by the disclosure embodiments is larger than the blowing range of the fan lamp in the related art.

[0155] It should be noted that in some embodiments, the concave surface and the convex surface referred to in the article refer to the general surface trend, and in other embodiments, a local convex surface can also be arranged in the concave surface for other effects.

[0156] It should also be noted that the various structural features of the fan lamp (such as the shielding tongue 3) provided by the disclosure embodiments can be arbitrarily combined. Alternatively, it is described that the various examples provided by the disclosure embodiments can be arbitrarily combined.

[0157] The above merely describes optional embodiments of the present disclosure, and is not intended to limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A fan light, characterized in that The fan lamp comprises a housing (1), a fan assembly (2), a plurality of shielding tongues (3) and a lamp module (4); The housing (1) has an air inlet (11) and an annular opening (12) at the bottom; The fan assembly (2) is located inside the housing (1), the lamp module (4) is arranged at the bottom of the housing (1), and the annular opening (12) surrounds the lamp module (4); 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 air guide surface (31) and a second air guide surface (32), the first end of the first air guide surface (31) is connected to the first end of the second air guide surface (32), and the second air guide surface (32) of one shielding tongue (3) and the first air guide surface (31) of the adjacent shielding tongue (3) have the air outlet (120) therebetween; In a reference plane perpendicular to the central axis of the annular opening (12), the line connecting the first end of the first air guide surface (31) and the central axis of the annular opening (12) is the first reference line (a), the line connecting the end of the first air guide surface (31) and the central axis of the annular opening (12) is the second reference line (b), and the line connecting the end of the second air guide surface (32) and the central axis of the annular opening (12) is the third reference line (c), then the third reference line (c) is located between the first reference line (a) and the second reference line (b); In the reference plane, the included angle between the first air guide surface (31) and the second air guide surface (32) at the connection is δ, 9°<δ<38°.

2. The fan lamp of claim 1, wherein, 17°<δ<30°.

3. The fan lamp of claim 1, wherein the housing is configured to be mounted to a ceiling. The included angle between the first reference line (a) and the third reference line (c) is γ, 0°<γ<15°.

4. The fan lamp of claim 3, wherein, 3°<γ<10°.

5. The fan lamp of claim 1, wherein, In the reference plane, the distance between the first end of the first air guide surface (31) and the central axis of the annular opening (12) is r1, and the radius of the fan assembly (2) is R, r1 / R≥1.

05.

6. The fan lamp of claim 1, wherein, The number of air outlets (120) is 4-6, and each air outlet (120) occupies a central angle of 40°-65°.

7. The fan lamp of any of claims 1-6, wherein, The first air guide surface (31) comprises at least a first sub-air guide surface (311), and the first end of the first sub-air guide surface (311) is connected to the first end of the second air guide surface (32); In the reference plane, the distance between the first end of the first sub-air guide surface (311) and the central axis of the annular opening (12) is r1, and the distance between the end of the first sub-air guide surface (311) and the central axis of the annular opening (12) is r2, 1.015 8. The fan lamp of claim 7, wherein, The first sub-air guide surface (311) is a plane.

9. The fan lamp of claim 8, wherein, The first air guide surface (31) is a plane.

10. The fan lamp of any one of claims 1-6, wherein, The included angle between the second reference line (b) and the third reference line (c) is α, and 20°<α<30°.

11. The fan lamp of any one of claims 1-6, wherein, An included angle between a tangent line of the first end of the first air guide surface (31) and the first reference line (a) is A on the reference plane, and A>145°.

12. The fan lamp of any one of claims 1-6, wherein, An included angle between a tangent line of the last end of the second air guide surface (32) and a line connecting the second air guide surface (32) and the central axis of the annular opening (12) is ε on the reference plane, and 0°<ε<20°.

13. The fan lamp of any one of claims 1-6, wherein, The first air guide surface (31) comprises a first sub-air guide surface (311) and a second sub-air guide surface (312) in sequence along a rotation direction of the fan assembly (2). The second sub-air guide surface (312) is arc-shaped, and a convex surface of the second sub-air guide surface (312) faces the fan assembly (2).

14. The fan lamp of claim 13, wherein, An included angle between a tangent line of the last end of the second sub-air guide surface (312) and a line connecting the last end of the second sub-air guide surface (312) and the central axis of the annular opening (12) is ω on the reference plane, and 0°<ω<20°.

15. The fan lamp of claim 14, wherein, 5°<ω<20°.

16. The fan lamp of claim 13, wherein, An included angle between a tangent line of the first end of the first sub-air guide surface (311) and a line connecting the first end of the first sub-air guide surface (311) and the central axis of the annular opening (12) is σ on the reference plane, and 10°<σ-ω<45°.

17. The fan lamp of claim 13, wherein, The first sub-air guide surface (311) is arc-shaped, and a concave surface of the first sub-air guide surface (311) faces the fan assembly (2), and the first sub-air guide surface (311) is used for gathering air flow.

18. The fan lamp of claim 13, wherein, A distance between the first end of the first sub-air guide surface (311) and the central axis of the annular opening (12) is r1, a distance between a target point on the first sub-air guide surface (311) and the central axis of the annular opening (12) is r, an included angle between a line connecting the first end of the first sub-air guide surface (311) and the central axis of the annular opening (12) and a line connecting the target point and the central axis of the annular opening (12) is θ, and r=(m1+sinθ)r1+m2 on the reference plane, where m1 and m2 are constant coefficients, and the target point is any point on the first sub-air guide surface (311).

19. The fan lamp of claim 13, wherein, The first sub-air guide surface (311) and the second sub-air guide surface (312) are tangent at a connection position of the first sub-air guide surface (311) and the second sub-air guide surface (312).

20. The fan lamp of any one of claims 1-6, wherein, The second air guide surface (32) is arc-shaped, and a concave surface of the second air guide surface (32) faces the first air guide surface (31) of the shielding tongue (3) closest to the second air guide surface (32).

21. The fan lamp of any one of claims 1-6, wherein, The shell (1) comprises an outer shell (101) and an inner shell (102), and 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 a bottom of the outer shell (101) and a bottom of the inner shell (102). The shielding tongue (3) is connected with or integrally formed with the outer shell (101) or the inner shell (102). The lamp module (4) is arranged at the bottom of the inner shell (102), or the inner shell (102) has a containing groove, and a lamp source of the lamp module (4) is arranged in the containing groove.

22. The fan lamp of claim 21, wherein, The fan assembly (2) comprises a motor (21) and an impeller (22), the motor (21) comprises a motor shaft (211) and an outer rotor (212); The outer rotor (212) is fixedly connected with the impeller (22), the motor shaft (211) is fixedly connected with the inner shell (102), and the outer shell (101) is fixed to the inner shell (102).

23. The fan lamp of any one of claims 1-6, wherein, The inner wall of the annular opening (12) is inclined outward relative to the central axis of the annular opening (12).

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