Fan light

Abstract

This disclosure provides a fan light, belonging to the field of home appliance technology. The fan light includes a housing, a fan wheel assembly, multiple first guide vanes, multiple second guide vanes, and a light assembly. The housing includes an air duct with an air inlet and an annular air outlet located on the bottom side of the housing and facing downwards. The fan wheel assembly is located within the air duct, with the bottom surface of the fan wheel higher than the annular air outlet. The air duct guides the airflow from the fan wheel assembly downwards to the annular air outlet. Multiple first guide vanes are located inside the housing and surround the fan wheel assembly. Second guide vanes are provided between adjacent first guide vanes. The second guide vanes are shorter than the first guide vanes, and the distance between the tip of the first guide vane and the axis of the fan wheel assembly is less than the distance between the tip of the second guide vane and the axis. The second guide vanes guide the airflow between adjacent first guide vanes, reducing the generation of eddies and lowering noise. Furthermore, the length of airflow passing through the second guide vanes is shorter, resulting in less friction loss.

Description

Technical Field

[0001] This disclosure relates to the field of home appliance technology, and in particular to a fan light. Background Technology

[0002] A fan light is a common household appliance that can simultaneously provide lighting and ventilation.

[0003] In related technologies, the fan light includes a housing, multiple guide vanes, and a fan assembly. The fan assembly is located inside the housing, which has an air inlet at the top and an annular air outlet at the bottom. Multiple guide vanes are circumferentially fixed inside the housing and surround the fan assembly. When the fan assembly is operating, air is drawn in from the top of the housing, and the guide vanes guide the airflow towards the air outlet.

[0004] However, in related technologies, eddy currents are easily generated at the end of the guide vanes of the fan light, which results in significant noise from the fan light. Summary of the Invention

[0005] This disclosure provides a fan light that solves the technical problems existing in related technologies. The technical solution of the fan light is as follows.

[0006] This disclosure provides a fan light, which includes a housing, a fan wheel assembly, a plurality of first guide vanes, a plurality of second guide vanes, and a light assembly;

[0007] The interior of the housing includes an air duct, which includes an air inlet and an annular air outlet. The annular air outlet is located on the bottom side of the housing and faces downward.

[0008] The wind turbine assembly is located in the air duct, and the plane containing the bottom surface of the wind turbine of the wind turbine assembly is higher than the annular air outlet. The air duct is used to guide the airflow blown out by the wind turbine assembly to deflect downward and be blown out through the annular air outlet.

[0009] The plurality of first guide vanes are located inside the air duct and arranged around the wind turbine assembly. One or more second guide vanes are provided between two adjacent first guide vanes. The length of the second guide vane is less than the length of the first guide vane, and the distance between the head end of the first guide vane and the axis of the wind turbine assembly is less than the distance between the head end of the second guide vane and the axis.

[0010] The lamp assembly is located at the bottom of the housing.

[0011] In one possible implementation, a portion of the first guide vane is higher than the plane containing the bottom surface of the wind turbine, and another portion is lower than the plane containing the bottom surface of the wind turbine.

[0012] The second guide vane is lower than the plane containing the bottom surface of the wind turbine.

[0013] In one possible implementation, the first end of the second guide vane is lower than the position where the bottom side of the first guide vane's first end connects to the housing.

[0014] In one possible implementation, let the height of the second guide vane be H1 and the width of the annular air outlet be W, then H1≥W.

[0015] In one possible implementation, let the length of the projection of the first guide vane onto the horizontal plane be L1, the length of the projection of the second guide vane onto the horizontal plane be L2, and the radial width of the annular air outlet be W, then W≤L2≤1 / 2L1.

[0016] In one possible implementation, let β be the angle between the line connecting the midpoint of the first end of the second guide vane and the midpoint of the last end of the second guide vane and the horizontal plane, then 75°≤β≤130°.

[0017] In one possible implementation, the plane on which the end of the first guide vane is located is different from the plane on which the end of the second guide vane is located.

[0018] In one possible implementation, the end face of the first end of the second guide vane is an arc surface, or an inclined surface that is tilted relative to the horizontal plane.

[0019] In one possible implementation, the number of the first guide vanes is 9-18, and the number of the second guide vanes is 9-18.

[0020] In one possible implementation, let α be the angle between the line connecting the ends of adjacent first and second guide vanes and the axis, then 20°≤α≤45°.

[0021] In one possible implementation, the first and second guide vanes rotate in the same direction. This way, when the airflow moves from the first guide vane to the second guide vane, the airflow direction does not change abruptly, thus reducing the likelihood of significant noise generation.

[0022] In one possible implementation, the end of the second guide vane is higher than the exposed portion of the sidewall of the lamp assembly.

[0023] In one possible implementation, the housing includes an upper shell and a lower shell;

[0024] The upper shell surrounds the lower shell, the upper shell has an air inlet, and the bottom of the upper shell and the bottom of the lower shell form the annular air outlet;

[0025] The first guide vane is located on the inner wall of the upper shell, and the second guide vane is located on the outer wall of the lower shell.

[0026] In one possible implementation, a reference plane is positioned perpendicular to the axis and located between the top and bottom ends of the second guide vane, wherein the curvature of the first guide vane and the curvature of the second guide vane are equal on the reference plane.

[0027] The technical solution provided in this disclosure includes at least the following beneficial effects:

[0028] This disclosure provides a fan light where, when the impeller assembly rotates, airflow enters the impeller assembly through the air inlet and then is radially blown out along the end of the impeller assembly. During the process of the air duct guiding the radial airflow downwards, the airflow passes through a first guide vane and a second guide vane. The first guide vane plays a primary guiding role in the airflow, while the second guide vane further guides the airflow between adjacent first guide vanes, thus reducing the likelihood of eddies forming between adjacent first guide vanes. This results in more uniform airflow from the annular air outlet, expands the air delivery area of ​​the fan light, and reduces the noise of the fan light.

[0029] Furthermore, since the distance between the first guide vane and the axis of the wind turbine assembly is less than the distance between the second guide vane and the axis, the length of the airflow passing through the second guide vane is shorter, resulting in less friction between the airflow and the second guide vane and thus less frictional loss. This reduces the vortex at the end of the first guide vane without causing significant frictional loss in the airflow.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. In the drawings:

[0032] Figure 1 This is a schematic diagram of the structure of a fan light according to an embodiment of this disclosure;

[0033] Figure 2 This is an exploded view of a fan light shown in an embodiment of this disclosure;

[0034] Figure 3 This is a cross-sectional view of a fan light according to an embodiment of this disclosure;

[0035] Figure 4 This is a partial structural schematic diagram of a fan light according to an embodiment of the present disclosure;

[0036] Figure 5 This is a partial enlarged view of a fan light shown in an embodiment of this disclosure;

[0037] Figure 6 This is a bottom view of an upper shell shown in an embodiment of this disclosure;

[0038] Figure 7 This is a top view of a lower shell shown in an embodiment of this disclosure;

[0039] Figure 8 This is a partial enlarged view of a fan light shown in an embodiment of this disclosure;

[0040] Figure 9 This is a partial enlarged view of a fan light shown in an embodiment of this disclosure;

[0041] Figure 10 This is a schematic diagram of the structure of an upper shell according to an embodiment of this disclosure;

[0042] Figure 11 This is a schematic diagram of the structure of a lower shell shown in an embodiment of this disclosure;

[0043] Figure 12 This is a cross-sectional view of a fan light according to an embodiment of this disclosure;

[0044] Figure 13 This is a cross-sectional view of a fan light shown in an embodiment of this disclosure.

[0045] Legend:

[0046] 1. Housing; 10. Air duct; 1a. Air inlet; 1b. Annular air outlet; 11. Upper housing; 12. Lower housing; 13. Cover; 14. Hanging rod.

[0047] 2. Wind turbine assembly; 21. Wind turbine;

[0048] 3. First guide vane;

[0049] 4. Second air deflector;

[0050] 5. Lighting components.

[0051] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings.

[0053] The terminology used in the embodiments of this disclosure is for illustrative purposes only and is not intended to limit the disclosure. Unless otherwise defined, the technical or scientific terms used herein should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” “third,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “a” or “one,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising,” “including,” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected,” “linked,” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0054] A fan light is a common household appliance that can simultaneously provide lighting and ventilation.

[0055] In related technologies, the fan light includes a housing, multiple guide vanes, and a fan assembly. The fan assembly is located inside the housing, which has an air inlet at the top and an annular air outlet at the bottom. Multiple guide vanes are circumferentially fixed inside the housing and surround the fan assembly. When the fan assembly is operating, air is drawn in from the top of the housing, and the guide vanes guide the airflow toward the air outlet.

[0056] However, in related technologies, eddies are easily generated between the ends of two adjacent guide vanes, resulting in significant noise from the fan. To reduce these eddies, the number of guide vanes can be increased. However, friction between the airflow and the guide vanes generates noise, so directly increasing the number of guide vanes would also increase the fan's noise level.

[0057] In view of the above-mentioned technical problems, this disclosure provides a fan light, such as Figures 1-3As shown, the fan light includes a housing 1, a rotor assembly 2, multiple first guide vanes 3, multiple second guide vanes 4, and a light assembly 5. The housing 1 contains an air duct 10, which includes an air inlet 1a and an annular air outlet 1b. The annular air outlet 1b is located on the bottom side of the housing 1 and faces downwards. The rotor assembly 2 is located within the air duct 10, and the plane M containing the bottom surface of the rotor 21 of the rotor assembly 2 is higher than the annular air outlet 1b. The air duct 10 guides the airflow from the rotor assembly 2 downwards and out through the annular air outlet 1b. Multiple first guide vanes 3 are located inside the air duct 10 and arranged around the rotor assembly 2. One or more second guide vanes 4 are provided between adjacent first guide vanes 3. The length of the second guide vane 4 is less than the length of the first guide vane 3, and the distance between the tip of the first guide vane 3 and the axis A of the rotor assembly 2 is less than the distance between the tip of the second guide vane 4 and the axis A. The light assembly 5 is located at the bottom of the housing 1.

[0058] The air inlet 1a can be located at the top of the housing 1, and the axis of the air inlet 1a, the axis of the annular air outlet 1b, and the axis A of the impeller assembly 2 coincide. The impeller assembly 2 is a centrifugal fan, which includes a motor and an impeller 21. The motor is used to drive the impeller 21 to rotate.

[0059] The first guide vane 3 and the second guide vane 4 can be directly connected to the inner wall of the housing 1, or the first guide vane 3 and the second guide vane 4 can be connected to other parts and confined inside the housing 1, or the first guide vane 3 and the second guide vane 4 can be integrally formed with the housing 1.

[0060] Understandably, the air duct 10 is used to guide the airflow gradually from the radial direction to the axial direction, hence the air duct 10 is arc-shaped. Furthermore, the ventilation area of ​​the air duct 10 gradually decreases, thereby gradually increasing the airflow pressure, which is beneficial for increasing the airflow blowing distance.

[0061] The technical solution provided in this embodiment describes a system where, when the impeller assembly 2 rotates, airflow enters the duct 10 from the air inlet 1a and then flows radially out along the end of the impeller assembly 2. During the downward deflection of the radial airflow by the duct 10, the airflow passes through the first guide vane 3 and the second guide vane 4. The second guide vane 4 further guides the airflow between adjacent first guide vanes 3, making it less prone to vortices. This results in more uniform airflow from the annular outlet 1b, expands the fan lamp's air delivery area, and reduces the noise generated by the fan lamp.

[0062] Furthermore, since vortices are easily generated at the bottom of the first guide vane 3, it is sufficient to place the second guide vane 4 only between the bottoms of two adjacent first guide vanes 3. Therefore, in this embodiment, the distance between the first guide vane 3 and the axis A of the wind turbine assembly 2 is smaller than the distance between the second guide vane 4 and the axis A. This not only reduces the vortices between two adjacent first guide vanes 3, but also reduces the length of airflow passing through the second guide vane 4, resulting in less friction between the airflow and the second guide vane 4, thus preventing significant frictional losses in the airflow.

[0063] The implementation of the first guide vane 3 and the second guide vane 4 will be described below by way of example.

[0064] In some examples, such as Figures 3-5 As shown, a portion of the first guide vane 3 is higher than the plane M on which the bottom surface of the wind turbine assembly 2 is located, thus enabling it to guide the airflow blown out by the wind turbine assembly 2 as early as possible. The other portion is lower than the plane M on which the bottom surface of the wind turbine assembly 2 is located, and is used to guide the airflow towards the annular air outlet 1b.

[0065] Since vortices are easily generated at the ends of the first guide vanes 3, a second guide vane 4 can be placed between the ends of two adjacent first guide vanes 3. Vortices are not easily generated above the bottom surface of the wind turbine assembly 2. Therefore, if the second guide vane 4 is higher than the plane M containing the bottom surface of the wind turbine assembly 2, it will not only fail to improve the vortex elimination effect, but will also increase the length of horizontal airflow passing through the second guide vane 4, resulting in greater frictional losses and noise. Therefore, the second guide vane 4 is set lower than the plane M containing the bottom surface of the wind turbine assembly 2. This reduces vortices at the ends of the first guide vanes 3 while minimizing noise and frictional losses in the fan.

[0066] In some examples, such as Figure 5 As shown, the first end of the second guide vane 4 is lower than the bottom side of the first guide vane 3 at the point where it connects with the housing 1.

[0067] In this way, when the airflow passes the bottom of the first guide vane 3, the second guide vane 4 will not immediately create resistance to the airflow, thus reducing the resistance experienced by the airflow. This, in turn, helps to increase the airflow velocity, allowing the airflow to travel a greater distance. Furthermore, it also reduces the noise generated by the airflow. Moreover, the shorter length of the airflow passing through the second guide vane 4 reduces friction between the airflow and the second guide vane 4, thus minimizing frictional losses.

[0068] In some examples, such as Figure 5 As shown, let the axial height of the second guide vane 4 be H1 and the radial width of the annular air outlet 1b be W, then H1≥W.

[0069] If H1 < W, the axial height of the second guide vane 4 will be too small, making it difficult for the second guide vane 4 to guide the airflow and thus hindering the reduction of vortices at the annular air outlet 1b.

[0070] In some examples, such as Figures 5-7 As shown, let the length of the projection of the first guide vane 3 onto the horizontal plane be L1, the length of the projection of the second guide vane 4 onto the horizontal plane be L2, and the radial width of the annular air outlet 1b be W. Then W ≤ L2 ≤ 1 / 2 L1. In this way, the second guide vane 4 can both rectify the airflow and prevent the airflow from generating significant noise.

[0071] If L2 < W, then part of the airflow at the annular outlet 1b will not flow through the second guide vane 4. This will make it difficult for the second guide vane 4 to effectively eliminate the vortex between the ends of two adjacent first guide vanes 3.

[0072] The two sides of the second guide vane 4 abut against the inner wall of the housing 1. Therefore, if L2 is increased, the height of the first end of the second guide vane 4 also needs to be increased. If L2 ≥ L21 / 2L1, the height of the first end of the second guide vane 4 will be relatively high, resulting in a longer airflow length passing through the second guide vane 4. On the one hand, this increases the frictional loss of the airflow, resulting in less airflow at the annular outlet 1b. On the other hand, it increases the noise generated by the airflow.

[0073] In some examples, such as Figure 8 As shown, let β be the angle between the line connecting the midpoint of the first end of the second guide vane 4 and the midpoint of the last end of the second guide vane 4 and the horizontal plane. Then 75°≤β≤130°.

[0074] It is understandable that the higher the height of the tip of the second guide vane 4, the longer the length of the second guide vane 4, making the midpoint of the tip of the second guide vane 4 closer to the axis A of the wind turbine assembly 2. Since the end of the second guide vane 4 is located near the annular outlet 1b, the distance between its midpoint and axis A remains almost constant regardless of whether the height of the end of the second guide vane 4 increases or decreases. Therefore, the larger β is, the smaller the distance between the midpoint of the tip of the second guide vane 4 and axis A, that is, the higher the height of the tip of the second guide vane 4 (e.g., ...). Figure 8 (As shown in β'). Therefore, setting 75°≤β≤130° allows the top of the second guide vane 4 to be lower, thereby reducing the length of the airflow along the second guide vane 4.

[0075] In some examples, the plane at the end of the first guide vane 3 is different from the plane at the end of the second guide vane 4. This prevents the airflow from simultaneously detaching from both the first guide vane 3 and the second guide vane 4. Airflow detachment from the guide vanes is one source of noise generated by the fan light; therefore, preventing the airflow from detaching from both the first and second guide vanes 3 and 4 simultaneously reduces noise at the annular air outlet 1b.

[0076] When there are multiple second guide vanes 4 between two adjacent first guide vanes 3, the planes at the ends of the multiple second guide vanes 4 can also be different. In this way, the airflow will not simultaneously detach from two adjacent second guide vanes 4, which helps to reduce noise at the annular air outlet 1b.

[0077] Of course, in other examples, the plane where the end of the first guide vane 3 is located can also be coplanar with the plane where the end of the second guide vane 4 is located.

[0078] In some examples, such as Figure 9 As shown, along the axis A near the wind turbine assembly 2, the end face of the first end of the second guide vane 4 is an arc surface, or an inclined surface relative to the horizontal plane. In this way, when the airflow flows towards the second guide vane 4, different positions of the second guide vane 4 will not collide with the airflow simultaneously, thereby reducing the collision intensity between the airflow and the second guide vane 4, and thus reducing the noise generated by the airflow.

[0079] For example, along the direction close to the axis A of the wind turbine assembly 2, the end face of the first end of the second guide vane 4 can gradually rise, or gradually fall, or rise first and then fall, or fall first and then rise.

[0080] Similarly, along the direction of axis A, the distance between the first end of the first guide vane 3 and axis A can gradually increase, or gradually decrease, or increase first and then decrease, or decrease first and then increase.

[0081] Of course, in other examples, the end face of the second guide vane 4 can also be in the horizontal direction, and this embodiment does not specifically limit this.

[0082] In some examples, the first end of the second guide vane 4 may also be in the shape of a polyline.

[0083] In some examples, the number of first guide vanes 3 is 9-18, and the number of second guide vanes 4 is 9-18. There is one or more second guide vanes 4 between two adjacent first guide vanes 3.

[0084] If the number of the first guide vane 3 and the second guide vane 4 is too small, the first guide vane 3 and the second guide vane 4 will have a smaller guiding effect on the airflow, making it easy for the airflow to form vortices at the annular air outlet 1b, thereby reducing the airflow efficiency of the fan lamp and generating more noise.

[0085] If there are too many first guide vanes 3 and second guide vanes 4, the friction between the first guide vanes 3 and second guide vanes 4 and the airflow will be greater. On the one hand, this will increase the friction loss of the airflow, thereby reducing the airflow volume at the annular air outlet 1b; on the other hand, it will increase the noise generated by the airflow.

[0086] In some examples, such as Figure 9 As shown, the end of the second guide vane 4 is higher than the exposed portion of the side wall of the lamp assembly 5. This avoids interference between the lamp assembly 5 and the second guide vane 4, which is beneficial for the assembly of the fan light.

[0087] In some examples, such as Figure 3 As shown, the bottom wall of the lamp assembly 5 has a curved convex surface, and the convex surface faces away from the impeller assembly 2. When the airflow flows through the side wall of the lamp assembly 5, some of the airflow will flow towards the bottom wall of the lamp assembly 5. On the one hand, this allows the area below the lamp assembly 5 to also be blown downwards. On the other hand, the airflow can also carry away the heat on the side wall and bottom wall of the lamp assembly 5, which is beneficial to the heat dissipation of the lamp assembly 5, thereby improving the lifespan of the fan lamp.

[0088] In some examples, such as Figure 10 and Figure 11 As shown, the housing 1 includes an upper housing 11 and a lower housing 12, with the upper housing 11 surrounding the lower housing 12. The upper housing 11 has an air inlet 1a, and the bottom of the upper housing 11 and the bottom of the lower housing 12 form an annular air outlet 1b. A first guide vane 3 is confined to the inner wall of the upper housing 11, and a second guide vane 4 is confined to the outer wall of the lower housing 12.

[0089] In some examples, the lamp assembly 5 is connected to the bottom wall of the lower housing 12.

[0090] In other examples, the lower housing 12 can also be considered as part of the lamp assembly 5. For example, the lower housing 12 can be considered as the top housing of the lamp assembly 5.

[0091] Alternatively, in other examples, the first guide vane 3 and the second guide vane 4 may both be confined to the upper shell 11 or both to the lower shell 12.

[0092] For example, the top of the lower shell 12 has a groove, and the impeller 21 is opposite to the groove, so that the lower shell 12 will not affect the rotation of the impeller 21. It also makes the bottom of the impeller 21 and the top of the upper shell 11 approximately the same height, so that the flow area will not suddenly increase after the airflow flows out of the impeller 21, thereby preventing the air pressure from suddenly decreasing and helping to increase the blowing distance of the airflow.

[0093] In some examples, the second air guide 4 and the lower housing 12 are integrally formed. This reduces the number of parts in the fan light and simplifies the assembly process.

[0094] In other examples, the second guide vane 4 and the lower shell 12 can also be two separate parts. The second guide vane 4 can be snapped onto the lower shell 12, or connected to the shell wall of the lower shell 12 by means of adhesive, bolt connection, riveting, etc.

[0095] Correspondingly, the first guide vane 3 and the upper shell 11 can also be integrally formed, thereby reducing the number of parts in the fan light and simplifying the assembly process of the fan light. Alternatively, the first guide vane 3 can also be connected to the inner wall of the upper shell 11 by means of adhesive, bolt connection, riveting, etc.

[0096] Correspondingly, such as Figure 12 As shown, let α be the angle between the line connecting the ends of the adjacent first guide vane 3 and second guide vane 4 and the axis A, then 20°≤α≤45°.

[0097] In some examples, such as Figure 12 As shown, the first guide vane 3 and the second guide vane 4 rotate in the same direction. In this way, when the airflow flows from the first guide vane 3 to the second guide vane 4, the direction of the airflow will not change suddenly, thus making it less likely for the airflow to generate large noise.

[0098] In some examples, such as Figure 13 As shown, the reference plane is perpendicular to axis A and is located between the top and bottom ends of the second guide vane 4. On the reference plane, the curvature of the first guide vane 3 and the curvature of the second guide vane 4 are equal. The reference plane is located below the plane M containing the bottom surface of the wind turbine assembly 2.

[0099] When the airflow between the ends of two adjacent first guide vanes 3 passes through the second guide vane 4, the direction of the airflow does not change significantly. This results in less noise generated by the airflow.

[0100] It is understandable that the first guide vane 3, located below the plane M containing the bottom surface of the wind turbine assembly 2, may include a flow guiding structure, which is identical in structure to the second guide vane 4. Alternatively, the second guide vane 4 may be considered as the first guide vane 3 with some structures removed.

[0101] In some examples, such as Figure 2 and Figure 3 As shown, the housing 1 also includes a cover 13, which surrounds the upper housing 11. The cover 13 has a grille structure, which is opposite to the air inlet 1a on the upper housing 11. In this way, foreign objects outside the fan light are not easily allowed to enter the fan light through the air inlet 1a, and air intake at the air inlet 1a is also prevented.

[0102] In some examples, such as Figure 2 and Figure 3As shown, housing 1 also includes a suspension rod 14, which is connected to the top of housing 13. The suspension rod 14 is used to suspend the fan light from the ceiling.

[0103] In some examples, the bottom of the annular air outlet 1b has a grille structure, and the grille structure is located below the first guide vane 3 and the second guide vane 4. The grille structure is used to prevent foreign objects outside the fan light from entering the interior of the fan light through the annular air outlet 1b.

[0104] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A fan light, characterized in that, The fan light includes a housing (1), a wind turbine assembly (2), multiple first guide vanes (3), multiple second guide vanes (4), and a light assembly (5); The interior of the housing (1) includes an air duct (10), the air duct (10) includes an air inlet (1a) and an annular air outlet (1b), the annular air outlet (1b) is located on the bottom side of the housing (1) and faces downward; The wind turbine assembly (2) is located in the air duct (10). The plane (M) on which the bottom surface of the wind turbine (21) of the wind turbine assembly (2) is located is higher than the annular air outlet (1b). The air duct (10) is used to guide the airflow blown out by the wind turbine assembly (2) to deflect downward and blow out through the annular air outlet (1b). The plurality of first guide vanes (3) are located in the air duct (10) and arranged around the wind turbine assembly (2). One or more second guide vanes (4) are provided between two adjacent first guide vanes (3). The length of the second guide vane (4) is less than the length of the first guide vane (3). The distance between the head end of the first guide vane (3) and the axis (A) of the wind turbine assembly (2) is less than the distance between the head end of the second guide vane (4) and the axis (A). The lamp assembly (5) is located at the bottom of the housing (1).

2. The fan light according to claim 1, characterized in that, A portion of the first guide vane (3) is higher than the plane (M) where the bottom surface of the wind turbine (21) is located, and another portion is lower than the plane (M) where the bottom surface of the wind turbine (21) is located; The second guide vane (4) is lower than the plane (M) where the bottom surface of the wind turbine (21) is located.

3. The fan light according to claim 1, characterized in that, The first end of the second guide vane (4) is lower than the position where the bottom side of the first guide vane (3) is connected to the housing (1).

4. The fan light according to any one of claims 1-3, characterized in that, Let the height of the second guide vane (4) be H1 and the width of the annular air outlet (1b) be W, then H1≥W.

5. The fan light according to any one of claims 1-3, characterized in that, it is provided that... The length of the projection of the first guide vane (3) on the horizontal plane is L1, the length of the projection of the second guide vane (4) on the horizontal plane is L2, and the radial width of the annular air outlet (1b) is W. Then W≤L2≤1 / 2L1.

6. The fan light according to any one of claims 1-3, characterized in that, Let β be the angle between the line connecting the midpoint of the first end of the second guide vane (4) and the midpoint of the last end of the second guide vane (4) and the horizontal plane. Then 75°≤β≤130°.

7. The fan light according to any one of claims 1-3, characterized in that, The plane at the end of the first guide vane (3) is different from the plane at the end of the second guide vane (4).

8. The fan light according to any one of claims 1-3, characterized in that, The end face of the first end of the second guide vane (4) is an arc surface, or an inclined surface that is inclined relative to the horizontal plane.

9. The fan light according to any one of claims 1-3, characterized in that, The end of the second guide vane (4) is higher than the exposed portion of the sidewall of the lamp assembly (5).

10. The fan light according to any one of claims 1-3, characterized in that, The housing (1) includes an upper shell (11) and a lower shell (12); The upper shell (11) surrounds the lower shell (12), the upper shell (11) has an air inlet (1a), and the bottom of the upper shell (11) and the bottom of the lower shell (12) form the annular air outlet (1b); The first guide vane (3) is located on the inner wall of the upper shell (11), and the second guide vane (4) is located on the outer wall of the lower shell (12).

11. The fan light according to any one of claims 1-3, characterized in that, Assume that the reference plane is perpendicular to the axis (A) and is located between the top and bottom ends of the second guide vane (4). On the reference plane, the curvature of the first guide vane (3) and the curvature of the second guide vane (4) are equal.

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