Cross-flow air duct structure, fan assembly and fan lamp

Abstract

The invention provides a cross-flow air duct structure, a fan assembly and a fan lamp, and belongs to the technical field of fans and fan lamps. The cross-flow air duct structure comprises an air duct shell, and a cross-flow air duct used for containing a cross-flow impeller is formed in the air duct shell; the inner wall face of the cross-flow air duct is provided with a convex rib protruding towards the cross-flow impeller, and the convex rib extends in the transverse direction of the air duct shell. The transverse direction of the air duct shell is parallel to the axis direction of the impeller; the convex ribs are provided with curved surfaces protruding out of the inner wall face of the cross-flow air channel. The convex rib is arranged on the inner wall surface of the cross-flow air duct, so that the air outlet pressure can be increased, and the air flow is accelerated. And meanwhile, the convex ribs are arranged to be arc-shaped, so that large pneumatic noise can be prevented from being generated when airflow circulation is accelerated.

Description

Technical Field

[0001] The present invention relates to the technical field of fans and fan lamps, and in particular to a cross-flow air duct structure, a fan assembly and a fan lamp. Background Art

[0002] The fan lights on the market are basically in concept, and the blowing experience is extremely poor; there is basically no design for the cross-flow air duct, which is similar to a simply assembled product without a systematic coordination design, resulting in poor blowing effect of the fan light when the product is in use. Summary of the invention

[0003] In order to overcome the problem of poor blowing effect of fan lamps in the related art when using products, an embodiment of the present invention proposes a cross-flow duct structure, a fan assembly and a fan lamp that can improve the blowing effect of the fan lamp.

[0004] A first aspect of an embodiment of the present invention provides a cross-flow air duct structure, comprising:

[0005] An air duct housing, wherein a cross-flow air duct for accommodating a cross-flow impeller is formed inside the air duct housing;

[0006] The inner wall surface of the crossflow air duct is provided with a convex rib convex toward the crossflow impeller, the convex rib is one and extends along the transverse direction of the air duct housing; the transverse direction of the air duct housing is a direction parallel to the axis of the impeller;

[0007] The convex rib has a curved surface protruding from the inner wall surface of the cross-flow air duct.

[0008] In the above technical solution, the inner wall surface of the crossflow air duct has a closest position to the impeller, and the convex rib is arranged at the closest position or close to the closest position.

[0009] In the above technical solution, the protrusion height of the rib from the inner wall surface of the cross-flow air duct is between 0.7 mm and 1 mm.

[0010] In the above technical solution, the curved surface is an arc surface, preferably a cylindrical surface.

[0011] In the above technical solution, the convex rib has a first curved surface as a windward surface and a second curved surface as a leeward surface in the air supply direction of the crossflow air duct, a third curved surface is smoothly transitioned between the first curved surface and the second curved surface, and the first curved surface and the second curved surface are symmetrically arranged on both sides of the third curved surface;

[0012] The first arc surface and the second arc surface are concave arc surfaces arranged relative to the impeller, and the third arc surface is a convex arc surface arranged relative to the impeller;

[0013] The first arc surface, the second arc surface, and the third arc surface at least constitute a partial curved surface.

[0014] In the above technical solution, a circular arc transition surface is formed at the connection between the curved surface and the inner wall surface of the cross-flow air duct on the windward side and / or the leeward side.

[0015] In the above technical solution, the air duct housing includes an air inlet and an air outlet, and the cross-flow air duct forms a gradually expanding structure on the air outlet side;

[0016] The width of the crossflow air duct at the air inlet is greater than the diameter of the impeller; the air inlet area of ​​the air inlet is greater than the air outlet area of ​​the air outlet.

[0017] In the above technical solution, the air duct housing includes a first housing and a second housing located on both sides of the impeller in the radial direction, the first housing is provided with a volute tongue structure, and the second housing includes an air inlet section, a middle section and an air outlet section connected in sequence along the air supply direction;

[0018] The air inlet section and the air outlet section both form a straight inner wall surface of the crossflow air duct, and the middle section forms a curved inner wall surface of the crossflow air duct. The straight surface of the air inlet section, the curved surface of the middle section and the straight surface of the air outlet section form a smooth transition;

[0019] The convex rib is arranged at the middle section or at the connection between the middle section and the air inlet section or at the end side of the air inlet section close to the middle section.

[0020] In the above technical solution, the first shell is also provided with an air inlet section, a middle section and an air outlet section along the air supply direction;

[0021] The air inlet section of the first housing is arranged correspondingly to the air inlet section of the second housing;

[0022] The air outlet section of the first shell is arranged correspondingly to the air outlet section of the second shell;

[0023] The middle section of the first shell is arranged correspondingly to the middle section of the second shell;

[0024] The outer wall surfaces of the air inlet section, the middle section and the air outlet section of the first housing form a groove structure extending in the transverse direction of the air duct housing and open on both sides, and the groove structure can be used to set the first light-emitting component;

[0025] The outer wall surface of the middle section of the first shell forms the bottom surface of the groove, and the inner wall surface of the middle section is provided with a volute tongue structure.

[0026] A second aspect of an embodiment of the present invention provides a fan assembly, which includes the above-mentioned cross-flow duct structure.

[0027] A third aspect of an embodiment of the present invention provides a fan light, the fan light comprising a housing, a fan assembly, and a first light emitting assembly.

[0028] The fan assembly is provided with the above-mentioned cross-flow air duct structure;

[0029] The outer shell forms a cavity, and the fan assembly is arranged in the cavity;

[0030] The side of the shell is provided with a first opening, and the bottom is provided with a second opening;

[0031] The first light-emitting component is annular and is disposed around the outer periphery of the air outlet end of the cross-flow air duct structure;

[0032] The outer edge of the first light-emitting component has a shape that matches the second opening and is fixedly connected to the housing, and the inner edge of the first light-emitting component has a shape that matches the air outlet section of the air duct housing and is fixedly connected to the air duct housing;

[0033] The inner edge of the first light-emitting component forms a hollow air outlet, and the air outlet corresponds to and is connected with the air outlet of the air duct housing;

[0034] The first light-emitting component is partially embedded in the groove

[0035] In the above technical solution, the fan lamp further comprises a first lampshade for covering the first light-emitting component, and an air outlet channel for air outlet is provided at the central position of the first lampshade;

[0036] The first lampshade protrudes from the air outlet surface of the air outlet or is flush with the air outlet surface of the air outlet.

[0037] In the above technical solution, the fan lamp also includes a second light-emitting component and a connecting component. The second light-emitting component is arranged around the outer circumference of the shell; the connecting component is used to achieve a detachable connection between the second light-emitting component and the shell.

[0038] In the above technical solution, the second light-emitting component includes a replaceable heat sink, and the connecting component is composed of a metal connecting piece, one end of the metal connecting piece is connected to the second light-emitting component and thermally coupled with the heat sink, and the other end is connected to the housing and thermally coupled together.

[0039] In the above technical solution, the second light-emitting component has two groups of light source components and the two groups of light source components are arranged opposite to each other, wherein the light emitting direction of one group of light source components is the same as the light emitting direction of the first light-emitting component, and the light emitting direction of the other group of light source components is opposite to the light emitting direction of the first light-emitting component.

[0040] In the above technical solution, the fan light also includes a mounting base plate assembly;

[0041] The mounting base plate assembly includes a mounting base plate, a spring, a spring block and a hook, and the mounting base plate is hung on the top of the housing through the spring, the spring block and the hook;

[0042] An air inlet grille is provided at the first opening of the shell, and the grille is arranged on the first opening in a magnetic attraction manner.

[0043] A fourth aspect of the embodiments of the present invention provides a fan lamp, which includes the above-mentioned fan assembly.

[0044] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: in the embodiment of the present invention, by providing a convex rib on the inner wall surface of the cross-flow air duct, the outlet wind pressure can be increased and the airflow can be accelerated. At the same time, the convex rib is provided in an arc shape, which can also avoid generating large aerodynamic noise when accelerating the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0046] Figure 1 A schematic diagram of the three-dimensional structure of the crossflow air duct structure according to an embodiment of the present invention;

[0047] Figure 2 for Figure 1 A left-side structural schematic diagram of an embodiment;

[0048] Figure 3 for Figure 2 A schematic cross-sectional view of an embodiment;

[0049] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of point A in the embodiment;

[0050] Figure 5 It is a schematic diagram of the exploded structure of a fan embodiment of the present invention;

[0051] Figure 6 This is a schematic diagram of the structure of the fan lamp embodiment of the present invention after assembly;

[0052] Figure 7 It is a schematic diagram of the exploded structure of installing the base plate assembly in the fan lamp embodiment of the present invention;

[0053] Figure 8 It is a schematic diagram of the exploded structure of the second light-emitting component in the fan lamp embodiment of the present invention; DETAILED DESCRIPTION

[0054] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0055] The fan lamp in the prior art has a poor air outlet effect when in use. In the embodiment of the present invention, a convex rib is provided on the inner wall surface of the cross-flow air duct, so that the air outlet pressure can be increased and the airflow can be accelerated. At the same time, the convex rib is provided in an arc shape, which can also avoid generating a large aerodynamic noise when accelerating the airflow, so as to improve the air outlet effect of the fan lamp when in use.

[0056] The following is combined with Figure 1-8 The technical solution of this embodiment is elaborated in detail. In the absence of conflict, the following implementation methods and embodiments can be combined with each other.

[0057] Example

[0058] like Figure 1-Figure 4 As shown, an embodiment of the present invention proposes a cross-flow air duct structure, including:

[0059] An air duct housing 1, wherein a cross-flow air duct for accommodating a cross-flow impeller 2 is formed inside the air duct housing 1;

[0060] A convex rib 3 convex toward the crossflow impeller 2 is provided on the inner wall surface of the crossflow air duct, and the convex rib 3 is one and extends along the transverse direction of the air duct housing 1; the transverse direction of the air duct housing 1 is a direction parallel to the axis of the impeller 2;

[0061] The rib 3 has a curved surface that protrudes from the inner wall surface of the cross-flow air duct.

[0062] In the embodiment of the present invention, a convex rib 3 is provided on the inner wall surface of the crossflow air duct, so that the outlet wind pressure can be increased and the airflow can be accelerated. At the same time, the convex rib 3 is provided in a curved shape, which can also avoid generating large aerodynamic noise when accelerating the airflow.

[0063] It should be noted that the convex rib 3 in the embodiment of the present invention can only be set to one. The inventors have found that if the number of convex ribs 3 is set to multiple, it will affect the flow rate. For example, when there are two or more convex ribs 3, the airflow will increase the wind resistance and friction when flowing through the convex rib 3, forming reverse refracted wind, thereby reducing the flow rate.

[0064] It should also be noted that the convex rib 3 in the embodiment of the present invention is preferably arranged in an arc shape, so that the airflow can accelerate the airflow velocity when passing through the convex rib while not forming internal turbulence inside the crossflow air duct, thereby increasing the wind speed and wind pressure while not increasing the airflow noise. If the convex rib 3 is not arc-shaped, but is step-shaped or planar, internal turbulence will be formed inside the crossflow air duct, thereby reducing the wind speed and increasing the turbulent noise. It should be noted that the rib 3 in the embodiment of the present invention is an arc-shaped rib, which is not required to be a complete arc, as long as the surface of the convex rib 3 is relatively smooth. It should also be noted that the wind pressure increased by setting the convex rib 3 in the embodiment of the present invention refers to the wind pressure of the crossflow air duct at the air outlet 131, that is, the overall air supply pressure of the crossflow air duct when supplying air, and does not refer to the wind pressure at the position of the convex rib 3.

[0065] In any of the above embodiments, the ribs 3 are arranged on the inner surface of the crossflow duct near the impeller 2, such as Figure 3 and Figure 4 As shown, the inner wall surface of the crossflow air duct has a closest position to the impeller 2, and the rib 3 is arranged at the closest position and protrudes toward the impeller 2. The wind pressure and airflow are the largest at the position closest to the impeller 2, and the effect is best when it is arranged here. It can also prevent airflow backflow and reduce the loss of wind pressure and air volume.

[0066] In the embodiment of the present invention, by setting the convex rib 3 at the position of the shortest distance between the cross-flow air duct and the impeller 2, the backflow of air flow can be effectively prevented, and the air flow can be quickly pressurized when passing through this position.

[0067] In any of the above-mentioned embodiments, the protrusion height of the rib 3 from the inner wall surface of the cross-flow air duct is between 0.7 mm and 1 mm.

[0068] In the embodiment of the present invention, by setting the height of the rib 3 between 0.7 mm and 1 mm, the air outlet effect of the airflow can be optimized. The "air outlet effect of the airflow is optimized" in the embodiment of the present invention means finding a balance point between the air flow velocity and the air flow noise. At this time, the air flow velocity can be increased and the noise during the air flow can be reduced, thereby optimizing the air outlet effect.

[0069] In any of the above embodiments, if Figure 1 As shown, the lateral direction of the convex rib 3 extends along the lateral direction of the air duct housing 1, and the lateral direction of the air duct housing 1 is parallel to the axial direction of the impeller 2, that is, the length extension direction of the convex rib 3 is perpendicular to the airflow direction;

[0070] The transverse direction of the rib 3 is coplanar with the axial direction of the impeller 2 .

[0071] The rib 3 in the embodiment of the present invention is extended in the transverse direction of the air duct housing 1, and the length of the rib 3 is greater than or equal to the blade length of the impeller 2, or the rib 3 runs across the inner wall of the flow duct, which can further improve the acceleration effect of the airflow when it flows through the position of the rib 3.

[0072] In any of the above embodiments, the outer surface of the rib 3 is a cylindrical surface, which intersects with the inner wall of the cross-flow air duct, and the central angle of the cylindrical surface is 145 to 180 degrees, preferably 160 degrees.

[0073] It is worth noting that the convex rib 3 with a cylindrical outer surface mentioned in the embodiment of the present invention is not a complete cylindrical rib. Specifically, when the convex rib 3 is set on the inner wall of the crossflow air duct, the convex rib 3 and the crossflow air duct are still connected by surface to surface. That is, when the convex rib 3 in the embodiment of the present invention has its outer surface set as a cylindrical surface, the convex rib at this time is similar to a semi-cylindrical convex rib.

[0074] In any of the above embodiments, the convex rib 3 has a first curved surface 31 as a windward surface and a second curved surface 32 as a leeward surface in the air supply direction of the crossflow air duct, a third curved surface 33 is smoothly transitioned between the first curved surface 31 and the second curved surface 32, and the first curved surface 31 and the second curved surface 32 are symmetrically arranged on both sides of the third curved surface 32;

[0075] The first arc surface 31 and the second arc surface 32 are concave arc surfaces arranged relative to the impeller, and the third arc surface 33 is a convex arc surface arranged relative to the impeller;

[0076] The first arc surface 31 , the second arc surface 32 and the third arc surface 33 at least constitute a partial curved surface.

[0077] The central angle of the third arc surface 33 is 145 to 180 degrees, and preferably, the central angle of the third arc surface 33 is 160 degrees;

[0078] The inner wall surface of the crossflow air duct includes a first inner wall surface of the crossflow air duct and a second inner wall surface of the crossflow air duct located on both sides of the convex rib 3 . The first inner wall surface of the crossflow air duct smoothly transitions with the first curved surface 31 , and the second inner wall surface of the crossflow air duct smoothly transitions with the second curved surface 32 .

[0079] In the embodiment of the present invention, the convex rib 3 is arranged between the inner wall surface of the first cross-flow air duct and the inner wall surface of the second cross-flow air duct, and the inner wall surface of the first cross-flow air duct and the inner wall surface of the second cross-flow air duct are smoothly transitioned through the convex rib having three arc surfaces, namely, the first arc surface, the second arc surface and the third arc surface, so that the convex rib 3 can be smoothly connected to the inner wall surface of the cross-flow air duct of the cross-flow air duct, thereby further reducing the aerodynamic noise generated when the airflow flows in the cross-flow air duct.

[0080] In any of the above-mentioned embodiments, a circular arc transition surface is formed at a connection between the curved surface and the inner wall surface of the cross-flow air duct on the windward side and / or the leeward side.

[0081] In any of the above embodiments, the air duct housing 1 includes an air inlet 111 and an air outlet 131, and the cross-flow air duct forms a gradually expanding structure on the side of the air outlet 131;

[0082] The width of the crossflow air duct at the air inlet 111 is greater than the diameter of the impeller 2 ; the air inlet area of ​​the air inlet 111 is greater than the air outlet area of ​​the air outlet 131 .

[0083] The embodiment of the present invention can improve air inlet blockage, improve air outlet performance, and ensure smooth air inlet by setting the air inlet width of the air inlet 111 larger than the diameter of the impeller 2, thereby avoiding the formation of turbulence inside the crossflow air duct and reducing vibration noise and vibration frequency. By setting the air inlet area of ​​the air inlet to be larger than the air outlet area of ​​the air outlet, the crossflow air duct structure is more reasonable, and the air supply distance of the compressed air at the air outlet can be increased.

[0084] Preferably, the ratio of the width of the air inlet 111 to the diameter of the impeller 2 is {1.2-1.8}: 1. Preferably, the ratio of the width of the air inlet 111 to the diameter of the impeller 2 is 1.5. It should be noted that if the ratio of the two exceeds 3 / 2, the air intake is saturated and the extra air intake area is of little significance. If the ratio of the two is less than 3 / 2, the air intake is insufficient and the wind speed is reduced.

[0085] Preferably, the air inlet area of ​​the air inlet 111 is three times the air outlet area of ​​the air outlet 131. In this case, the structure of the air supply crossflow duct is more reasonable, which can increase the air supply distance of the compressed air at the air outlet.

[0086] Preferably, the outlet expansion angle of the air outlet 131 in the embodiment of the present invention is set between 40° and 45°.

[0087] In the embodiment of the present invention, the air outlet 131 is configured as a gradually expanding structure and the expansion angle is set between 40° and 45°, so that the air supply distance and air supply volume can be effectively increased.

[0088] It is worth noting that if the expansion angle is set to be greater than 45°, the air supply distance will be affected, and if the expansion angle is set to be lower than 40°, the air supply volume will be lost; therefore, in the embodiment, setting the expansion angle of the air outlet 131 to 40°-45° is the best angle, and the air outlet 131 at this time can increase both the air supply distance and the air supply volume.

[0089] In any of the above embodiments, if Figure 3 As shown, an angle a is formed between the air inlet direction of the air inlet 111 and the air outlet direction of the air outlet 131;

[0090] The angle a is designed to be: 90°<a<110°.

[0091] That is, the air inlet 111 and the air outlet 113 in the embodiment of the present invention are at a certain angle, that is, the overall air inlet and air outlet angles of the cross-flow air duct in the embodiment of the present invention are set between 90°-110°, and the air supply is smoother at this time. Preferably, when the overall air inlet and air outlet angles of the cross-flow air duct are set between 90°-95°, the smoothness of the air supply is optimized. At this time, the air supply capacity of the impeller 2 is enhanced, the air flow velocity and flow rate are effectively increased, the fluid is smoother in the cross-flow air duct space, and the air friction loss is reduced.

[0092] In any of the above embodiments, if Figure 3 As shown, the air duct housing 1 includes a first housing 1a and a second housing 1b located on both sides of the impeller 2 in the radial direction. The first housing 1a is provided with a volute tongue structure, and the second housing 1b includes an air inlet section 11, a middle section 12 and an air outlet section 13 connected in sequence along the air supply direction;

[0093] The air inlet section 11 and the air outlet section 13 both form a straight inner wall surface of the crossflow air duct, and the middle section 12 forms a curved inner wall surface of the crossflow air duct. The straight surface of the air inlet section 11, the curved surface of the middle section, and the straight surface of the air outlet section 13 form a smooth transition;

[0094] The convex rib 3 is arranged at the middle section 12 or at the connection between the middle section 12 and the air inlet section 11 or at the end side of the air inlet section close to the middle section.

[0095] That is, the cross-flow duct inner wall section in the embodiment of the present invention transitions along the impeller curve arc, and is composed of three curved surfaces, namely, a horizontal straight surface, an arc curved surface, and a vertical straight surface. Figure 3 As shown in the figure, the three-segment surface smoothly transitions along the section of the impeller, which can effectively improve the smoothness of fluid flow.

[0096] It is worth noting that the air inlet 111 and the air outlet 131 are arranged on both sides of the volute tongue structure, and the volute tongue structure has a volute tongue structure angle b in the range of 70°-90°.

[0097] In the embodiment of the present invention, by arranging the volute tongue structure 14 on both sides of the air inlet and the air outlet, turbulence inside the cross-flow duct can be avoided and resonance noise can be reduced. By setting the angle of the volute tongue structure 14 between 70° and 90°, the air flow velocity can be effectively increased. Preferably, when the angle of the volute tongue structure 14 is 80°, the effect of increasing the air flow velocity is optimal.

[0098] Further, such as Figure 3 As shown, the first housing 1a is also provided with an air inlet section, a middle section and an air outlet section along the air supply direction;

[0099] The air inlet section of the first housing 1a is arranged corresponding to the air inlet section 11 of the second housing 1b;

[0100] The air outlet section of the first housing 1a is arranged corresponding to the air outlet section 13 of the second housing 1b;

[0101] The middle section of the first shell 1a is arranged corresponding to the middle section 12 of the second shell 1b;

[0102] The outer wall surfaces of the air inlet section, the middle section and the air outlet section of the first housing 1a form a groove structure extending in the transverse direction of the air duct housing 1 and open on both sides, wherein the groove structure can be used to set the first light emitting component 6;

[0103] The outer wall surface of the middle section of the first shell 1 a forms the bottom surface of the groove 8 , and the inner wall surface of the middle section is provided with a volute tongue structure 14 .

[0104] A second aspect of an embodiment of the present invention provides a fan assembly, which includes the above-mentioned cross-flow duct structure.

[0105] A third aspect of the present invention provides a fan light, such as Figure 5-Figure 8 As shown, the fan lamp includes a housing 4, a fan assembly, and a first light-emitting assembly 6.

[0106] The fan assembly is provided with the above-mentioned cross-flow air duct structure;

[0107] The housing 4 forms a cavity, and the fan assembly is arranged in the cavity;

[0108] The side of the housing 4 is provided with a first opening 41 and the bottom is provided with a second opening 42;

[0109] The first light-emitting component 6 is annular and is disposed around the outer periphery of the air outlet end of the cross-flow air duct structure;

[0110] The outer edge of the first light-emitting component 6 has a shape that matches the second opening 42 and is fixedly connected to the housing 4, and the inner edge of the first light-emitting component 6 has a shape that matches the air outlet section of the air duct housing 1 and is fixedly connected to the air duct housing 1;

[0111] The inner edge of the first light-emitting component 6 forms a hollow air outlet, which corresponds to and is connected to the air outlet of the air duct housing 1;

[0112] The first light-emitting component 6 is partially embedded in the groove 8 .

[0113] Furthermore, the fan lamp further comprises a first lampshade 61 for covering the first light-emitting assembly 6, and an air outlet channel 611 for the air outlet 11 to discharge air is provided at the center of the first lampshade 61;

[0114] When the first light-emitting assembly 6 is installed, the first lampshade 61 protrudes from the air outlet surface of the air outlet 11 of the air duct housing 1 or is flush with the air outlet surface of the air outlet 11 of the air duct housing 1 .

[0115] Furthermore, the fan lamp further comprises a second light-emitting component 7 and a connecting component 8, wherein the second light-emitting component 7 is arranged around the outer periphery of the housing 4;

[0116] The connecting component 8 is used to realize a detachable connection between the second light-emitting component 7 and the housing 4 .

[0117] Furthermore, the second light-emitting component 7 includes an annular heat sink 71, and the connecting component 8 is composed of a metal connector, one end of the metal connector 8 is connected to the second light-emitting component 7 and thermally coupled with the heat sink 71, and the other end is connected to the housing 4 and thermally coupled.

[0118] Furthermore, the second light-emitting component 7 and the first light-emitting component 6 are coaxially arranged, and the second light-emitting component 7 has two groups of light source components 72 and the two groups of light source components 72 are relatively arranged, wherein the light emitting direction of one group of light source components 72 is the same as the light emitting direction of the first light-emitting component 6, and the light emitting direction of the other group of light source components 72 is opposite to the light emitting direction of the first light-emitting component 6.

[0119] It is worth noting that annular grooves are provided on both the upper and lower sides of the heat exchanger mentioned above, wherein the light source assembly 72 located at the upper side is embedded in the groove located at the upper side, and the light source assembly 72 located at the lower side is embedded in the groove located at the lower side.

[0120] Furthermore, the second light emitting assembly 7 further includes an upper lampshade 73 and a lower lampshade 74 , wherein the upper lampshade 73 is disposed on the light source assembly 72 located above, and the lower lampshade 74 is disposed on the light source assembly 72 located below.

[0121] Furthermore, the fan light also includes a mounting base plate assembly 5;

[0122] The mounting base assembly 5 includes a mounting base 51, a spring 52, a spring block 53 and a hook 54. The mounting base 51 is hung on the top of the housing through the spring 52, the spring block 53 and the hook 54.

[0123] An air inlet grille 43 is disposed at the first opening 41 of the housing 4 , and the air inlet grille 43 is disposed on the first opening 41 in a magnetic manner.

[0124] A fourth aspect of the embodiments of the present invention further provides a fan lamp, which includes the above-mentioned fan assembly.

[0125] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the embodiments disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. The description and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0126] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0127] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the embodiments disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. The description and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0128] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A crossflow duct structure, characterized in that: include: An air duct housing (1), wherein a cross-flow air duct for accommodating a cross-flow impeller (2) is formed inside the air duct housing (1); A convex rib (3) convex toward the cross-flow impeller (2) is provided on the inner wall surface of the cross-flow air duct, the convex rib (3) being one and extending along the transverse direction of the air duct housing (1); the transverse direction of the air duct housing (1) is a direction parallel to the axis of the impeller (2); The convex rib (3) has a curved surface protruding from the inner wall surface of the cross-flow air duct.

2. The crossflow duct structure according to claim 1, characterized in that: The inner wall surface of the cross-flow air duct has a closest position to the impeller (2), and the convex rib (3) is arranged at the closest position or close to the closest position.

3. The cross-flow air duct structure according to claim 2, characterized in that: The protrusion height of the convex rib (3) from the inner wall surface of the cross-flow air duct is between 0.7 mm and 1 mm.

4. The crossflow air duct structure according to claim 1, characterized in that: The curved surface is an arc surface, preferably a cylindrical surface.

5. The cross-flow air duct structure according to claim 4, characterized in that: The convex rib (3) has a first curved surface (31) as a windward surface and a second curved surface (32) as a leeward surface in the air supply direction of the cross-flow air duct, a third curved surface (33) smoothly transitions between the first curved surface (31) and the second curved surface (32), and the first curved surface (31) and the second curved surface (32) are symmetrically arranged on both sides of the third curved surface (32); The first arc surface (31) and the second arc surface (32) are concave arc surfaces arranged relative to the impeller, and the third arc surface (33) is a convex arc surface arranged relative to the impeller; The first arc surface, the second arc surface, and the third arc surface at least constitute a portion of the curved surface.

6. The cross-flow air duct structure according to claim 5, characterized in that: The curved surface forms an arc transition surface at the connection between the curved surface and the inner wall surface of the cross-flow air duct on the windward side and / or the leeward side.

7. The cross-flow air duct structure according to claim 1, characterized in that: The air duct housing (1) comprises an air inlet (111) and an air outlet (131), and the cross-flow air duct forms a gradually expanding structure on the side of the air outlet (131); The width of the cross-flow air duct at the air inlet (111) is greater than the diameter of the impeller (2); and the air inlet area of ​​the air inlet (111) is greater than the air outlet area of ​​the air outlet (131).

8. The crossflow air duct structure according to any one of claims 1 to 7, characterized in that: The air duct housing (1) comprises a first housing (1a) and a second housing (1b) located on both radial sides of the impeller (2); the first housing (1a) is provided with a volute tongue structure; and the second housing (1b) comprises an air inlet section (11), an intermediate section (12) and an air outlet section (13) connected in sequence along the air supply direction; The air inlet section (11) and the air outlet section (13) both form a straight inner wall surface of the crossflow air duct, the middle section (12) forms a curved inner wall surface of the crossflow air duct, and the straight surface of the air inlet section (11), the curved surface of the middle section and the straight surface of the air outlet section (13) form a smooth transition; The convex rib (3) is arranged on the middle section (12) or at the connection between the middle section (12) and the air inlet section (11) or at the end side of the air inlet section close to the middle section.

9. The cross-flow air duct structure according to claim 8, characterized in that: The first shell (1a) is also provided with an air inlet section, a middle section and an air outlet section along the air supply direction; The air inlet section of the first shell (1a) and the air inlet section (11) of the second shell (1b) are arranged correspondingly; The air outlet section of the first shell (1a) and the air outlet section (13) of the second shell (1b) are arranged correspondingly; The middle section of the first shell (1a) and the middle section (12) of the second shell (1b) are arranged correspondingly; The outer wall surfaces of the air inlet section, the middle section and the air outlet section of the first shell (1a) form a groove structure extending in the transverse direction of the air duct shell (1) and open on both sides, wherein the groove structure can be used to arrange a first light-emitting component (6); The outer wall surface of the middle section of the first shell (1a) forms the bottom surface of the groove (8), and the inner wall surface of the middle section is provided with the volute tongue structure (14).

10. A fan assembly, characterized in that: It comprises a cross-flow impeller and a cross-flow air duct structure as described in any one of claims 1 to 9.

11. A fan light, characterized in that: The fan lamp comprises a housing, a fan assembly, and a first light-emitting assembly (6). The fan assembly is provided with the cross-flow air duct structure as claimed in claim 9; The housing (4) encloses a cavity, and the fan assembly is arranged in the cavity; The side of the housing (4) is provided with a first opening (41), and the bottom is provided with a second opening (42); The first light-emitting component (6) is annular and is arranged around the outer periphery of the air outlet end of the cross-flow air duct structure; The outer edge of the first light-emitting component (6) has a shape that matches the second opening (42) and is fixedly connected to the housing (4), and the inner edge of the first light-emitting component (6) has a shape that matches the air outlet section of the air duct housing (1) and is fixedly connected to the air duct housing (1); The inner edge of the first light-emitting component (6) forms a hollow air outlet, and the air outlet corresponds to and is connected to the air outlet of the air duct housing (1); The first light-emitting component (6) is partially embedded in the groove (8).

12. The fan light according to claim 11, characterized in that: The fan lamp further comprises a first lampshade (61) for covering the first light-emitting component (6), and an air outlet channel (611) for air outlet from the air outlet (11) is provided at the central position of the first lampshade (61); The first lampshade (61) protrudes from the air outlet surface of the air outlet (11) or is flush with the air outlet surface of the air outlet (11).

13. The fan light according to claim 11, characterized in that: The fan lamp further comprises a second light-emitting component (7) and a connecting component (8), wherein the second light-emitting component (7) is arranged around the outer circumference of the housing (4); The connecting component (8) is used to realize a detachable connection between the second light-emitting component (7) and the housing (4).

14. The fan light according to claim 13, characterized in that: The second light-emitting component (7) comprises an annular heat sink (71); the connection component (8) is composed of a metal connection piece, one end of the metal connection piece is connected to the second light-emitting component (7) and thermally coupled to the heat sink (71); and the other end of the metal connection piece is connected to the housing (4) and thermally coupled to the housing (4).

15. The fan light according to claim 13, characterized in that: The second light-emitting component (7) and the first light-emitting component (6) are arranged coaxially, and the second light-emitting component (7) has two groups of light source components (72) and the two groups of light source components (72) are arranged opposite to each other, wherein the light emitting direction of one group of light source components (72) is the same as the light emitting direction of the first light-emitting component (6), and the light emitting direction of the other group of light source components (72) is opposite to the light emitting direction of the first light-emitting component (6).

16. The fan light according to claim 13, characterized in that: The fan lamp also includes a mounting base plate assembly (5); The mounting base plate assembly (5) comprises a mounting base plate (51), a spring (52), a spring block (53) and a hook (54); the mounting base plate (51) is hung on the top of the housing via the spring (52), the spring block (53) and the hook (54); An air inlet grille (43) is provided at the first opening of the housing (4), and the air inlet grille (43) is arranged on the first opening (41) in a magnetically attracted manner.

17. A fan light, characterized in that: The fan assembly comprises the fan assembly as claimed in claim 10.

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