Bladeless fan lamp

Abstract

The present application provides a bladeless fan lamp, comprising: a shell assembly, comprising an upper shell and a lower shell, wherein the upper shell is provided with an air inlet, an air cavity is formed between the upper shell and the lower shell, an air outlet is formed on the periphery of the lower shell, and the air inlet, the air cavity and the air outlet are in communication with each other; a fan assembly, comprising an impeller, wherein the impeller is accommodated in the air cavity and used for suctioning air from the air inlet and sending the air out through the air outlet after the air passes through the air cavity; and a guide vane assembly, arranged in the air cavity and located between the impeller and the air outlet, wherein the guide vane assembly comprises main guide vanes and auxiliary guide vanes, the main guide vanes and the auxiliary guide vanes are arranged at intervals in a circumferential direction of the outer side of the impeller, an air duct is formed between every two adjacent main guide vanes, the auxiliary guide vanes are arranged in the air ducts, the extension length of the auxiliary guide vanes is smaller than the extension length of the main guide vanes, and the distance between the auxiliary guide vanes and the impeller is larger than the distance between the main guide vanes and the impeller. Compared with the prior art, the bladeless fan lamp of the present application eliminates the reverse vortex at negative pressure surfaces of the main guide vanes, and can adjust the flow velocity and direction, thereby improving the flow efficiency and reducing the flow noise.

Description

Bladeless fan light

[0001] This application claims priority to a Chinese patent application filed on March 18, 2024, with application number 202420530432.2 and invention name “Bladeless Fan Lamp”. Part of the contents of this patent application are incorporated by reference into this application. Technical Field

[0002] The present application relates to a bladeless fan lamp, belonging to the technical field of household appliances. Background Art

[0003] Current centrifugal bladeless fan lights typically use diffusers to adjust the outflow direction and control the flow velocity due to the long distance between the impeller and the air outlet. Diffusers come in two types: bladeless diffusers and vaned diffusers. Using a bladeless diffuser makes it difficult to control the outflow direction, so diffusers with vanes, also known as guide vanes, are often used.

[0004] For bladeless fan lights, when a guide vane structure with equal-length blades is used, a recirculation zone will be generated on the negative pressure surface of the guide vane, so that a sufficiently large pressure cannot be obtained, affecting the flow rate. It is also easy to cause surge and bring high noise.

[0005] In view of this, it is necessary to improve the existing bladeless fan lamp to solve the above problems. Summary of the Invention

[0006] The purpose of this application is to provide a bladeless fan lamp to eliminate the vortex on the negative pressure surface of the guide vane, facilitate the adjustment of the flow speed and direction, thereby improving the flow efficiency and reducing the flow noise.

[0007] To achieve the above objectives, the present application provides a bladeless fan lamp, comprising:

[0008] The housing assembly comprises an upper shell and a lower shell, wherein the upper shell is provided with an air inlet, an air cavity is formed between the upper shell and the lower shell, an air outlet is formed on the periphery of the lower shell, and the air inlet, the air cavity and the air outlet are interconnected;

[0009] a fan assembly, comprising an impeller, the impeller being received in the air cavity and configured to draw air from the air inlet and deliver air from the air outlet after passing through the air cavity; and

[0010] A guide vane assembly is provided in the wind cavity and located between the impeller and the air outlet. The guide vane assembly includes main guide vanes and auxiliary guide vanes. The main guide vanes and the auxiliary guide vanes are arranged at intervals along the outer circumferential direction of the impeller. An air duct is formed between two adjacent main guide vanes. The auxiliary guide vanes are provided in the air duct. The extension length of the auxiliary guide vanes is less than the extension length of the main guide vanes, and the distance between the auxiliary guide vanes and the impeller is greater than the distance between the main guide vanes and the impeller.

[0011] Optionally, the main guide blade is provided with an air inlet end close to the impeller, an air outlet end close to the air outlet, and a bent extension portion connecting the air inlet end and the air outlet end. The bent extension portion is arranged in a curled shape, and its extension direction is opposite to the rotation direction of the impeller, so that the air inlet direction of the air duct is opposite to the rotation direction of the impeller, and the air outlet direction is the same as the rotation direction of the impeller.

[0012] Optionally, the main guide vane and the auxiliary guide vane are both arranged in an arc shape, the main guide vane is provided with a convex negative pressure surface, and the auxiliary guide vane is arranged close to the negative pressure surface.

[0013] Optionally, in the rotation direction of the impeller, the distance between the auxiliary guide vane and the main guide vane at the rear is greater than the distance between the auxiliary guide vane and the main guide vane at the front.

[0014] Optionally, the main guide vane and the auxiliary guide vane are both arranged on the lower shell, and the extended length of the auxiliary guide vane is 30%-60% of the extended length of the main guide vane.

[0015] Optionally, in the direction of the central axis of the impeller, the extension direction of the air outlet end is parallel to the direction of the central axis of the impeller, and the air outlet forms an air outlet direction vertically downward.

[0016] Optionally, in the direction of the central axis of the impeller, the air outlet end is inclined along the rotation direction of the impeller, and the air outlet forms an outward-diffusion air outlet direction.

[0017] Optionally, in the direction of the central axis of the impeller, the air outlet end is tilted in the opposite direction of the rotation direction of the impeller, and the air outlet forms an inwardly converging air outlet direction.

[0018] Optionally, the guide vane assembly is integrally formed with the lower shell, the shell assembly further includes a frame surrounding the outer periphery of the lower shell, the guide vane assembly is in contact with the frame, and the air outlet is formed between the frame and the lower shell.

[0019] Optionally, the upper shell is clamped on the top of the frame, and a fixing column is provided on the side of the main blade facing the upper shell. A corresponding receiving groove is provided in the upper shell, and the fixing column is received in the receiving groove to fixedly connect the upper shell and the lower shell.

[0020] The beneficial effects of the present application are as follows: the present application arranges main blades and auxiliary guide vanes arranged circumferentially at intervals along the outer side of the impeller in the wind cavity, thereby forming an air duct between two adjacent main blades, connecting the wind cavity and the air outlet; in addition, the auxiliary guide vanes are arranged to have an extension length less than the extension length of the main blades, and the distance between the auxiliary guide vanes and the impeller is greater than the distance between the main blades and the impeller, thereby eliminating the vortex on the negative pressure surface of the main blades, being able to adjust the flow speed and direction, thereby improving the flow efficiency and reducing the flow noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic diagram of the three-dimensional structure of the bladeless fan lamp of the present application.

[0022] FIG2 is an exploded view of FIG1 .

[0023] FIG3 is a cross-sectional view of FIG1 .

[0024] FIG4 is an assembly diagram of the lower shell, guide vane assembly and fan assembly in FIG1 .

[0025] FIG5 is a schematic diagram of the three-dimensional structure of the lower shell in FIG2 .

[0026] FIG6 is an enlarged view of circle A in FIG5 . DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of this application clearer, this application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Please refer to Figures 1 and 2. The present application discloses a bladeless fan lamp 100, including a shell assembly 1, a fan assembly 2 and a guide vane assembly 3. The bladeless fan lamp 100 eliminates the vortex on the negative pressure surface of the guide vane through the guide vane assembly 3, can adjust the flow speed and direction, thereby improving the flow efficiency and reducing the flow noise.

[0029] As shown in Figures 2 to 6, the housing assembly 1 includes an upper shell 11 and a lower shell 12. The upper shell 11 is provided with an air inlet 111. A wind cavity (not numbered) is formed between the upper shell 11 and the lower shell 12. An air outlet 121 is formed on the periphery of the lower shell 12. The air inlet 111, the wind cavity, and the air outlet 121 are interconnected. The fan assembly 2 includes an impeller 22 and a motor 21. The motor 21 has a motor shaft 211, which is connected to the impeller 22 to drive the impeller 22 to rotate. The impeller 22 is housed in the wind cavity and is used to draw air from the air inlet 111 and send it out from the air outlet 121 after passing through the wind cavity.

[0030] In this embodiment, the impeller 22 and the motor 21 are both housed inside the air cavity, and the impeller 22 and the motor 21 are both arranged on the lower shell 12. Of course, in other embodiments, the motor 21 can also be arranged outside the housing assembly 1, in which case the motor shaft 211 extends into and connects to the impeller 22. Specifically, the fan assembly 2 is partially exposed to the air inlet 111. When the impeller 22 is driven by the motor 21 to rotate, it drives the external air flow from the air inlet 111 into the air cavity, and then discharges from the air outlet 121 to achieve the air outlet effect. The fan assembly 2 can adopt existing technology and is not limited to this. An assembly portion 122 is provided in the center position of the lower shell 12. The fan assembly 2 is fixed on the assembly portion 122 and can rotate relative to the assembly portion 122. The lower shell 12 also includes an assembly groove 123 arranged around the outside of the assembly portion 122. The impeller 22 is accommodated in the assembly groove 123 and can rotate relative to the assembly groove 123. A reinforcing plate 14 is further fixedly mounted on the assembly portion 122, and the impeller 22 is fixed between the reinforcing plate 14 and the motor 21. By providing the reinforcing plate 14, the structure of the bladeless fan lamp 100 is made more solid.

[0031] The guide vane assembly 3 is arranged in the wind cavity and is located between the impeller 22 and the air outlet 121. In this embodiment, the guide vane assembly 3 is provided with multiple and spaced rings are arranged on the lower shell 12. The guide vane assembly 3 is connected between the lower shell 12 and the upper shell 11. The guide vane assembly 3 includes main vanes 31 and auxiliary guide vanes 32. The main vanes 31 and the auxiliary guide vanes 32 are arranged circumferentially at intervals along the outer side of the impeller 22. The guide vane assembly 3 is integrally formed with the lower shell 12. The shell assembly 1 also includes a frame 13 surrounding the outer periphery of the lower shell 12. The guide vane assembly 3 is in contact with the frame 13. The air outlet 121 is formed between the frame 13 and the lower shell 12. The upper shell 11 is clamped on the top of the frame 13, and the frame 13 is fixedly connected to the upper shell 11. A fixing column 311 is provided on the side of the main blade 31 facing the upper shell 11, and a corresponding receiving groove (unnumbered) is provided in the upper shell 11. The fixing column 311 is received in the receiving groove to fixedly connect the upper shell 11 and the lower shell 12. A lampshade assembly 4 is also fixedly installed on the side of the lower shell 12 away from the upper shell 11, and the appearance of the bladeless fan lamp 100 is more complete.

[0032] In the rotation direction of the impeller 22, the auxiliary guide vanes 32 are located behind the main vanes 31. The main vanes 31 divide the air cavity, forming an air duct 312 between two adjacent main vanes 31. The air duct 312 connects the air cavity and the air outlet 121. The auxiliary guide vanes 32 are arranged in the air duct 312. The extension length of the auxiliary guide vanes 32 is less than the extension length of the main vanes 31, and the distance between the auxiliary guide vanes 32 and the impeller 22 is greater than the distance between the main vanes 31 and the impeller 22. In other words, the auxiliary guide vanes 32 are arranged between two adjacent main vanes 31, and the extension length of the auxiliary guide vanes 32 on the lower shell 12 is less than the extension length of the main vanes 31 on the lower shell 12. By adding the auxiliary guide vane 32 on the rear side of the main guide vane 31, and setting the extension length of the auxiliary guide vane 32 to be smaller than the extension length of the main guide vane 31, and the distance between the auxiliary guide vane 32 and the impeller 22 is greater than the distance between the main guide vane 31 and the impeller 22, the auxiliary guide vane 32 can be used to weaken the vortex zone on the rear side of the main guide vane 31, thereby improving the flow efficiency.

[0033] Preferably, the extension length of the auxiliary guide vane 32 is 30%-60% of the extension length of the main guide vane 31. The main guide vane 31 and the auxiliary guide vane 32 are both arranged in an arc shape. In other embodiments, the main guide vane 31 and the auxiliary guide vane 32 can also be other spline curve structures, which is not limited. The main guide vane 31 is provided with a protruding negative pressure surface 310, and the auxiliary guide vane 32 is arranged close to the negative pressure surface 310 to further eliminate the vortex generated on the negative pressure surface 310 of the main guide vane 31, thereby facilitating the adjustment of the flow velocity and reducing noise. In the rotation direction of the impeller 22, the spacing between the auxiliary guide vane 32 and the rear main guide vane 31 is greater than the spacing between the auxiliary guide vane 32 and the front main guide vane 31. The auxiliary guide vane 32 and the main guide vane 31 both extend to the air outlet 121, that is, the auxiliary guide vane 32 and the main guide vane 31 have different extension lengths on the lower shell 12 near the impeller 22.

[0034] As shown in FIG6 , the main guide vane 31 is provided with an air inlet end 313 near the impeller 22, an air outlet end 314 near the air outlet 121, and a curved portion 315 connecting the air inlet end 313 and the air outlet end 314. The curved portion 315 is arranged in a curled shape, and its extension direction is opposite to the rotation direction of the impeller 22, so that the air inlet direction of the air duct 312 is opposite to the rotation direction of the impeller 22, and the air outlet direction is the same as the rotation direction of the impeller 22. The main guide vane 31 and the auxiliary guide vane 32 are generally arranged at an angle on the lower shell 12. By changing the inclination direction of the air outlet end 314 of the main guide vane 31, different types of air outlet directions can be formed at the air outlet 121.

[0035] Specifically, because the guide vane assembly 3 and the lower housing 12 are integrally formed, the air outlet end 314 of the main guide vane 31 cannot be changed after the bladeless fan lamp 100 is assembled. In one embodiment, the air outlet end 314 extends parallel to the central axis of the impeller 22, and the air outlet 121 forms a vertically downward air outlet direction.

[0036] In another embodiment, in the direction of the central axis of the impeller 22, the air outlet end 314 is inclined along the rotation direction of the impeller 22, and at this time, the air outlet 121 forms an outward-diffusion air outlet direction; there is also an embodiment, in the direction of the central axis of the impeller 22, the air outlet end 314 is inclined in the opposite direction along the rotation direction of the impeller 22, and at this time, the air outlet 121 forms an inward-converging air outlet direction.

[0037] Of course, on the bladeless fan lamp 100 , the air outlet end 314 may also have a combination of the above three embodiments, which is not limited.

[0038] To sum up, the present application arranges main blades 31 and auxiliary guide vanes 32 circumferentially spaced apart along the outer side of the impeller 22 in the wind cavity, so that an air duct 312 can be formed between two adjacent main blades 31, thereby connecting the wind cavity and the air outlet 121; in addition, the auxiliary guide vanes 32 are arranged between two adjacent main blades 31, and the extension length of the auxiliary guide vanes 32 is smaller than the extension length of the main blades 31, and the distance between the auxiliary guide vanes 32 and the impeller 22 is greater than the distance between the main blades 31 and the impeller 22, thereby eliminating the vortex on the negative pressure surface of the main blades 31, and being able to adjust the flow speed and direction, thereby improving the flow efficiency and reducing the flow noise.

[0039] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A bladeless fan lamp, wherein: include: A housing assembly (1) comprises an upper shell (11) and a lower shell (12), wherein the upper shell (11) is provided with an air inlet (111), an air cavity is formed between the upper shell (11) and the lower shell (12), an air outlet (121) is formed on the periphery of the lower shell (12), and the air inlet (111), the air cavity and the air outlet (121) are interconnected; A fan assembly (2) includes an impeller (22), the impeller (22) being received in the air cavity and configured to draw air from the air inlet (111) and deliver air from the air outlet (121) after passing through the air cavity; and A guide vane assembly (3) is provided in the wind cavity and located between the impeller (22) and the air outlet (121). The guide vane assembly (3) comprises a main guide vane (31) and an auxiliary guide vane (32). The main guide vane (31) and the auxiliary guide vane (32) are arranged at intervals along the outer circumference of the impeller (22). An air duct (312) is formed between two adjacent main guide vanes (31). The auxiliary guide vane (32) is provided in the air duct (312). The extension length of the auxiliary guide vane (32) is less than the extension length of the main guide vane (31), and the distance between the auxiliary guide vane (32) and the impeller (22) is greater than the distance between the main guide vane (31) and the impeller (22).

2. The bladeless fan lamp according to claim 1, wherein: The main guide vane (31) is provided with an air inlet end (313) close to the impeller (22), an air outlet end (314) close to the air outlet (121), and a curved extension portion (315) connecting the air inlet end (313) and the air outlet end (314); the curved extension portion (315) is arranged in a curled shape, and its extension direction is opposite to the rotation direction of the impeller (22), so that the air inlet direction of the air duct (312) is opposite to the rotation direction of the impeller (22), and the air outlet direction is the same as the rotation direction of the impeller (22).

3. The bladeless fan lamp according to claim 2, wherein: The main guide vane (31) and the auxiliary guide vane (32) are both arranged in an arc shape; the main guide vane (31) is provided with a convex negative pressure surface (310); and the auxiliary guide vane (32) is arranged close to the negative pressure surface (310).

4. The bladeless fan lamp according to claim 3, wherein: In the rotation direction of the impeller (22), the distance between the auxiliary guide vane (32) and the main guide vane (31) at the rear is greater than the distance between the auxiliary guide vane (32) and the main guide vane (31) at the front.

5. The bladeless fan lamp according to claim 2, wherein: The main guide vane (31) and the auxiliary guide vane (32) are both arranged on the lower shell (12), and the extension length of the auxiliary guide vane (32) is 30%-60% of the extension length of the main guide vane (31).

6. The bladeless fan lamp according to claim 2, wherein: In the direction of the central axis of the impeller (22), the extension direction of the air outlet end (314) is parallel to the direction of the central axis of the impeller (22), and the air outlet (121) forms an air outlet direction vertically downward.

7. The bladeless fan lamp according to claim 2, wherein: In the direction of the central axis of the impeller (22), the air outlet end (314) is inclined along the rotation direction of the impeller (22), and the air outlet (121) forms an air outlet direction that diffuses outward.

8. The bladeless fan lamp according to claim 2, wherein: In the direction of the central axis of the impeller (22), the air outlet end (314) is tilted in the opposite direction to the rotation direction of the impeller (22), and the air outlet (121) forms an inwardly converging air outlet direction.

9. The bladeless fan lamp according to claim 1, wherein: The guide vane assembly (3) and the lower shell (12) are integrally formed, and the housing assembly (1) further comprises a frame (13) arranged around the outer periphery of the lower shell (12); the guide vane assembly (3) is in contact with the frame (13), and the air outlet (121) is formed between the frame (13) and the lower shell (12).

10. The bladeless fan lamp according to claim 9, wherein: The upper shell (11) is clamped on the top end of the frame (13); a fixing column (311) is provided on the side of the leading blade (31) facing the upper shell (11); a corresponding receiving groove is provided in the upper shell (11); the fixing column (311) is received in the receiving groove to fixedly connect the upper shell (11) and the lower shell (12).

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