Bladeless fan air outlet structure and bladeless fan

Abstract

The present invention provides a bladeless fan outlet structure and a bladeless fan. The bladeless fan outlet structure comprises a main body having an air duct and an air outlet connected to the air duct; and a grille structure disposed at the air outlet and positioned outside the air outlet. The present invention solves the problems of poor airflow and high noise levels associated with prior art bladeless fans.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a bladeless fan air outlet structure and a bladeless fan. Background Art

[0002] Bladeless fans are popular among users due to their unique airflow structure, excellent safety features, and technologically advanced appearance. When high-speed air enters the air duct, traditional bladeless fans, due to their complex structure and poor transitional properties, experience significant pressure loss as the high-speed rotating air within the duct moves from upstream to downstream, resulting in lower overall air volume. Furthermore, an upward velocity component in the airflow at the outlet increases the upstream velocity, causing the airflow to skew upward.

[0003] When high-speed airflow enters the air duct, traditional bladeless fans do not have a good air-guiding and air-draining structure. The high-speed rotating gas swirls in the air duct, which easily generates vortices, causing the airflow to be blocked in the air duct and easily causing back-flow noise.

[0004] That is to say, the bladeless fan in the prior art has the problems of poor air output effect and high noise. Summary of the Invention

[0005] The main purpose of the present invention is to provide a bladeless fan air outlet structure and a bladeless fan, so as to solve the problems of poor air outlet effect and high noise of bladeless fans in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a bladeless fan air outlet structure is provided, comprising: a main body, the main body having an air duct and an air outlet connected to the air duct; a grille structure, the grille structure is arranged at the air outlet, and the grille structure is located on the outside of the air outlet.

[0007] Furthermore, the bars of the grille structure extend toward the outside of the air outlet.

[0008] Furthermore, the grille structure has a plurality of bars, and the plurality of bars are arranged at intervals along the length direction of the air outlet.

[0009] Furthermore, the intervals between any two adjacent bars are equal.

[0010] Furthermore, the position of at least part of the bars along the length direction of the air outlet is adjustable to adjust the distance between two adjacent bars.

[0011] Furthermore, the bars are arranged perpendicular to the air outlet.

[0012] Furthermore, the width of the grid bars gradually decreases in a direction away from the main body.

[0013] Furthermore, the bars are in a trapezoidal shape.

[0014] Furthermore, the width of the extended end of the grid bar is smaller than the width of the root of the grid bar.

[0015] Furthermore, the grid structure and the main body are integrally injection-molded.

[0016] Furthermore, the main body includes an inner decorative part and an outer decorative part, which are assembled to form an installation cavity between the two; the air duct includes a front air duct and a rear air duct, which are connected and installed in the installation cavity, and the front air duct has an air outlet on the side facing away from the rear air duct, and the grille structure is arranged on the outside of the front air duct.

[0017] Furthermore, the front air duct and the rear air duct are snap-connected.

[0018] Furthermore, the front air duct is provided with at least one convex rib, and the rear air duct is provided with a groove matching the convex rib, and the convex rib is embedded in the groove so that the front air duct and the rear air duct are clamped and fixed.

[0019] Furthermore, the front air duct has a first adhesive surface, the inner decorative part has a second adhesive surface, and the first adhesive surface is bonded to the second adhesive surface; and / or the front air duct has a third adhesive surface, the outer decorative part has a fourth adhesive surface, and the third adhesive surface is bonded to the fourth adhesive surface.

[0020] Furthermore, the rear air duct is snap-connected with the inner decorative component; and / or the outer decorative component is snap-connected with the inner decorative component.

[0021] Furthermore, the rear air duct has a first buckle, the inner decorative piece has a first buckle slot, and the first buckle is engaged with the first buckle slot; and / or the inner decorative piece has a second buckle, the outer decorative piece has a second buckle slot, and the second buckle is engaged with the second buckle slot.

[0022] Furthermore, the bladeless fan air outlet structure further includes at least one fastener, one fastener passing through the rear air duct and screwed onto the inner decorative component; and / or another fastener passing through the front air duct and screwed onto the inner decorative component.

[0023] According to another aspect of the present invention, a bladeless fan is provided, comprising the above-mentioned bladeless fan air outlet structure.

[0024] Applying the technical solution of the present invention, the air outlet structure of the bladeless fan includes a main body and a grille structure, the main body has an air duct and an air outlet connected to the air duct; the grille structure is arranged at the air outlet, and the grille structure is located on the outside of the air outlet.

[0025] By arranging the grille structure on the outside of the air outlet, the grille structure plays a role in guiding the wind, avoiding the occurrence of deflection of the wind discharged from the air outlet, which is conducive to achieving the effect of straight blowing of the wind. At the same time, it can prevent the high-speed rotating wind from swirling in the air duct to form vortices, and will not cause the air flow to be blocked in the air duct, effectively reducing the wind pressure and structural resistance in the air duct, making the air outlet smoother and reducing the possibility of back-cavity noise. Moreover, such an arrangement can effectively reduce the wind loss from the upstream to the downstream of the air flow in the air duct, increase the air output, improve the air output efficiency, and at the same time make the air output effect more uniform, improve the performance of the bladeless fan, and ensure the user's use effect. In addition, the bladeless fan air outlet structure of the present application has the advantages of simple structure and easy assembly, which greatly improves the production efficiency of the bladeless fan air outlet structure, thereby improving the production efficiency of the bladeless fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 A schematic structural diagram of a bladeless fan according to an optional embodiment of the present invention is shown;

[0028] Figure 2 Shown Figure 1 Exploded view of the main body in the figure;

[0029] Figure 3 Shown Figure 1 A schematic diagram of the main body of FIG. 1 from another angle;

[0030] Figure 4 Shown Figure 1 A schematic diagram of the main body of FIG. 1 from another angle;

[0031] Figure 5 Shown Figure 1 A top view of the main body portion;

[0032] Figure 6 Shown Figure 1 A schematic diagram of the structure of the interior decoration parts;

[0033] Figure 7 Shown Figure 1 Structural diagram of the front air duct in FIG;

[0034] Figure 8 Shown Figure 7 A schematic diagram of the front air duct from another angle;

[0035] Figure 9 Shown Figure 7 A schematic diagram of the front air duct from another angle;

[0036] Figure 10 Shown Figure 1 Schematic diagram of the structure of the rear air duct;

[0037] Figure 11 Shown Figure 10 A schematic diagram of the rear air duct from another angle;

[0038] Figure 12 Shown Figure 1 A schematic diagram of the structure of the exterior decorative parts;

[0039] Figure 13 Shown Figure 12 Schematic diagram of another angle of the exterior decorative parts.

[0040] The above drawings include the following reference numerals:

[0041] 10. Main body; 11. Inner decorative part; 111. Second adhesive surface; 112. First snap groove; 113. Second snap; 12. Outer decorative part; 121. Fourth adhesive surface; 122. Second snap groove; 13. Front air duct; 131. Raised rib; 132. First adhesive surface; 133. Third adhesive surface; 14. Rear air duct; 141. Groove; 142. First snap; 15. Through hole; 16. Mounting hole; 20. Grille structure; 21. Bars; 30. Base. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0044] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0045] In order to solve the problems of poor air outlet effect and high noise of bladeless fans in the prior art, the present invention provides a bladeless fan air outlet structure and a bladeless fan.

[0046] like Figures 1 to 13As shown, the air outlet structure of the bladeless fan includes a main body 10 and a grille structure 20. The main body 10 has an air duct and an air outlet connected to the air duct; the grille structure 20 is arranged at the air outlet, and the grille structure 20 is located outside the air outlet.

[0047] By arranging the grille structure 20 on the outside of the air outlet, the grille structure 20 plays a role in guiding the wind, avoiding the occurrence of deflection of the wind discharged from the air outlet, which is conducive to achieving the effect of straight blowing of the wind. At the same time, it can prevent the high-speed rotating wind from swirling in the air duct to form a vortex, and will not cause the air flow to be blocked in the air duct, effectively reducing the wind pressure and structural resistance in the air duct, making the wind outlet smoother and reducing the possibility of back-cavity noise. Moreover, such an arrangement can effectively reduce the wind loss from the upstream to the downstream of the air flow in the air duct, increase the air output, improve the air output efficiency, and at the same time make the air output effect more uniform, improve the performance of the bladeless fan, and ensure the user's use effect. In addition, the bladeless fan air outlet structure of the present application has the advantages of simple structure and easy assembly, which greatly improves the production efficiency of the bladeless fan air outlet structure, thereby improving the production efficiency of the bladeless fan.

[0048] It should be noted that the above-mentioned air outlet is in the shape of an elongated strip, which means that the air outlet is a slit-shaped air outlet with a length, rather than the overall shape of the air outlet.

[0049] Specifically, the bars 21 of the grille structure 20 extend toward the outside of the air outlet. This arrangement helps ensure the air guiding effect of the grille structure 20, while preventing the bars 21 from blocking the air outlet path, thus avoiding air volume loss, making the air outlet smoother and ensuring air outlet efficiency.

[0050] Specifically, the grille structure 20 comprises a plurality of bars 21, which are spaced apart along the length of the elongated air outlet. This arrangement allows the bars 21 to be separated, allowing each bar 21 to operate independently, thereby preventing interference between adjacent bars 21 and ensuring the stability of the grille structure 20.

[0051] Specifically, the intervals between any two adjacent bars 21 are equal. This arrangement rationally plans the intervals between any two adjacent bars 21, which is beneficial to ensuring the consistency and uniformity of the arrangement of multiple grilles and achieving a uniform air outlet effect.

[0052] like Figure 9As shown, the bars 21 are arranged perpendicular to the air outlet. This arrangement enables the bars 21 to adjust the air outlet direction at the air outlet, so that the air outlet direction at the bars 21 is the same as the extension direction of the bars 21, reducing the possibility of the air discharged from the air outlet being deflected, which is conducive to achieving a straight air outlet effect. At the same time, the bars 21 will not block the air outlet, avoiding the risk of high-speed rotating wind swirling in the air duct to form vortices, thereby preventing the air flow from being blocked in the air duct, effectively reducing the wind pressure in the air duct, and facilitating a stable and uniform air outlet effect, effectively preventing the generation of cavity noise, and thus improving user satisfaction.

[0053] Specifically, the width of the bars 21 gradually decreases in the direction away from the main body 10. Since the wind pressure at the end of the bars 21 close to the main body 10 is greater than the wind pressure at the end of the bars 21 away from the main body 10, this arrangement makes the width of the side of the bars 21 close to the main body 10 larger, which is conducive to improving the wind-guiding efficiency of the bars 21. At the same time, the structure of the bars 21 is planned to improve the structural rationality and reliability of the bars 21.

[0054] like Figure 9 As shown, the grid bars 21 are trapezoidal in shape. This arrangement makes the grid bars 21 easy to manufacture and reduces the difficulty of processing the grid bars 21. Of course, the grid bars 21 of different shapes can also be provided according to specific circumstances.

[0055] Specifically, the width of the extended end of the grid bar 21 is smaller than the width of the root of the grid bar 21. This arrangement makes the width of the grid bar 21 closer to the main body 10 larger, which is conducive to increasing the air flow at the connection position between the air outlet and the grid bar 21, avoiding air flow loss and ensuring air flow efficiency.

[0056] Specifically, the grille structure 20 is integrally injection molded with the main body 10. This arrangement ensures that the grille structure 20 and the main body 10 are connected and fixed by integral injection molding, preventing the grille structure 20 from shaking or separating from the main body 10 during operation, thereby improving the operating stability of the grille structure 20 and ensuring the assembly strength and stability of the grille structure 20 and the main body 10.

[0057] Of course, in order to improve the air outlet effect, the position of at least some of the bars 21 along the length of the long strip-shaped air outlet can be adjusted to adjust the spacing between two adjacent bars 21. In this way, by adjusting the spacing between two adjacent bars 21, the grille structure 20 can cooperate with the adjustment of the wind pressure at the air outlet of the bladeless fan, so that the grille structure 20 and the bladeless fan can be matched with each other to ensure the maximum utilization of the grille structure 20, while expanding the scope of application of the grille structure 20 and improving the versatility of the grille structure 20.

[0058] like Figure 2 As shown, the main body 10 includes an inner decorative member 11 and an outer decorative member 12. When assembled, the inner decorative member 11 and the outer decorative member 12 form a mounting cavity therebetween. The air duct includes a front air duct 13 and a rear air duct 14. The front air duct 13 and the rear air duct 14 are connected and mounted within the mounting cavity. The front air duct 13 has an air outlet on the side facing away from the rear air duct 14. The grille structure 20 is disposed outside the front air duct 13. This arrangement provides a mounting location for the front air duct 13 and the rear air duct 14, allowing them to be stably mounted within the mounting cavity, thereby improving the reliability of the front air duct 13 and the rear air duct 14. At the same time, the arrangement of the interior decorative parts 11 and the exterior decorative parts 12 can play a decorative role, and prevent the front air duct 13 and the rear air duct 14 from being exposed to the outside, thereby protecting the front air duct 13 and the rear air duct 14, preventing external dust or dirt from entering the installation cavity, preventing external dust or dirt from affecting the stable operation of the front air duct 13 and the rear air duct 14, ensuring the cleanliness of the installation cavity while ensuring the stability of the front air duct 13 and the rear air duct 14.

[0059] Specifically, the front air duct 13 and the rear air duct 14 are connected by snapping. This arrangement allows the front air duct 13 and the rear air duct 14 to be connected and fixed by snapping, which can effectively prevent the front air duct 13 and the rear air duct 14 from being separated during operation, thereby ensuring the connection strength and stability of the front air duct 13 and the rear air duct 14.

[0060] like Figure 8 and Figure 10 As shown, the front air duct 13 is provided with at least one rib 131, and the rear air duct 14 is provided with a groove 141 that cooperates with the rib 131. The rib 131 is embedded in the groove 141 to secure the front air duct 13 and the rear air duct 14 together. This arrangement makes the front air duct 13 and the rear air duct 14 easier to install, reduces the difficulty of installation, and helps improve assembly efficiency, thereby improving production efficiency. At the same time, by embedding the rib 131 in the groove 141, the front air duct 13 and the rear air duct 14 are secured together, which helps ensure the strength of the connection between the front air duct 13 and the rear air duct 14.

[0061] Specifically, the connection between the rib 131 and the groove 141 is fixed by ultrasonic welding. This arrangement further strengthens the connection strength between the rib 131 and the groove 141 through ultrasonic welding, preventing the front air duct 13 and the rear air duct 14 from shaking relative to each other during operation, greatly enhancing the connection stability between the rib 131 and the groove 141, and ensuring the corresponding position relationship between the front air duct 13 and the rear air duct 14, thereby ensuring the stable operation of the front air duct 13 and the rear air duct 14.

[0062] like Figure 6 、 Figure 7 and Figure 12 As shown, the front air duct 13 has a first adhesive surface 132, and the interior trim 11 has a second adhesive surface 111, and the first adhesive surface 132 is bonded to the second adhesive surface 111. This arrangement allows the first adhesive surface 132 to be tightly bonded to the second adhesive surface 111, thereby ensuring the tightness of the connection between the first adhesive surface 132 and the second adhesive surface 111, thereby ensuring the strength of the connection between the front air duct 13 and the interior trim 11, and facilitating the stability of the connection between the interior trim 11 and the front air duct 13.

[0063] Specifically, the front air duct 13 has a third adhesive surface 133, and the outer trim 12 has a fourth adhesive surface 121. The third adhesive surface 133 is bonded to the fourth adhesive surface 121. This arrangement allows the third adhesive surface 133 to be tightly bonded to the fourth adhesive surface 121, thereby ensuring a tight connection between the third adhesive surface 133 and the fourth adhesive surface 121, thereby ensuring the strength of the connection between the front air duct 13 and the outer trim 12, and facilitating the stability of the connection between the outer trim 12 and the front air duct 13.

[0064] It should be noted that 3M glue is provided on the first adhesive surface 132 and the third adhesive surface 133. The first adhesive surface 132 is bonded to the second adhesive surface 111 through the 3M glue, and the third adhesive surface 133 is bonded to the fourth adhesive surface 121 through the 3M glue.

[0065] In addition, since 3M glue has the advantages of strong adhesion and bonding strength, the front air duct 13 is bonded and fixed to the inner decorative part 11 and the outer decorative part 12 by 3M glue, avoiding the risk of the front air duct 13 shaking or separating from the inner decorative part 11 and the outer decorative part 12, which is conducive to ensuring that the front air duct 13 can be stably assembled in the installation cavity, enhancing the assembly stability of the front air duct 13 and the inner decorative part 11 and the outer decorative part 12, and ensuring that the front air duct 13 can operate stably.

[0066] like Figure 6 、 Figure 10 and Figure 12As shown, the rear air duct 14 is snap-fitted to the interior trim 11. Specifically, the rear air duct 14 has a first snap 142, and the interior trim 11 has a first snap groove 112, and the first snap 142 snaps into the first snap groove 112. This arrangement ensures the snap-fit ​​strength between the rear air duct 14 and the interior trim 11, prevents relative movement between the rear air duct 14 and the interior trim 11 during operation, and ensures the snap-fit ​​stability between the rear air duct 14 and the interior trim 11. The exterior trim 12 is snap-fitted to the interior trim 11. Specifically, the interior trim 11 has a second snap 113, and the exterior trim 12 has a second snap groove 122, and the second snap 113 snaps into the second snap groove 122. This arrangement allows the exterior trim 12 and the interior trim 11 to be connected and fixed by snapping, ensuring a stable snap-fit ​​between the exterior trim 12 and the interior trim 11 and the reliability of the mounting cavity. At the same time, such a setting makes the outer decorative part 12 and the inner decorative part 11 easy to disassemble, reduces the difficulty of installation and disassembly, and facilitates the disassembly and maintenance of the bladeless fan, and facilitates the replacement and maintenance of parts in the installation cavity, saving costs.

[0067] Specifically, the bladeless fan outlet structure also includes at least one fastener, one of which passes through the rear duct 14 and is screwed onto the interior trim 11. It should be noted that the fastener is a screw. The rear duct 14 and the interior trim 11 are provided with corresponding through-holes 15. Multiple screws are sequentially passed through the corresponding through-holes 15 in the rear duct 14 and the interior trim 11, and the screws are tightened to fasten the rear duct 14 to the interior trim 11. Furthermore, the rear duct 14 and the interior trim 11 include two fixing structures: one is the snap fit between the first snap 142 and the first snap groove 112, and the other is the fit between the fastener and the through-hole 15. These two fixing structures significantly improve the assembly stability of the rear duct 14 and the interior trim 11.

[0068] Specifically, another fastener passes through the front air duct 13 and is tightened onto the interior trim 11. It should be noted that the front air duct 13 and interior trim 11 are provided with corresponding mounting holes 16. Multiple screws are sequentially inserted through the corresponding mounting holes 16 on the front air duct 13 and interior trim 11, and the screws are tightened to secure the front air duct 13 and interior trim 11. Furthermore, the front air duct 13 and interior trim 11 include two fixing mechanisms: one is the adhesive bonding of the first adhesive surface 132 and the second adhesive surface 111, and the other is the fit of the fasteners and mounting holes 16. These two fixing mechanisms significantly enhance the assembly stability of the front air duct 13 and interior trim 11.

[0069] like Figure 1 As shown, the bladeless fan includes the above-mentioned bladeless fan air outlet structure. The bladeless fan with the above-mentioned bladeless fan air outlet structure has the advantages of large air output, uniform air output and low noise.

[0070]

[0071] Table 1

[0072] It can be seen from Table 1 above that compared with traditional bladeless fans, the bladeless fan of the present application increases the air volume, improves the air outlet efficiency, improves the deflection of the air outlet of traditional bladeless fans, realizes the direct blowing air outlet effect, makes the air outlet smoother and the wind speed more uniform, and at the same time reduces the return cavity noise and improves the user experience.

[0073] like Figure 1 As shown, the bladeless fan further includes a seat portion 30 , which is disposed below the main body 10 and connected to the main body 10 , and has an air inlet communicated with the main body 10 .

[0074] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0075] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0076] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0077] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A bladeless fan air outlet structure, characterized in that: include: A main body (10), the main body (10) having an air duct and an air outlet communicating with the air duct; a grille structure (20), the grille structure (20) being arranged at the air outlet, and the grille structure (20) being located outside the air outlet; The bars (21) of the grille structure (20) extend toward the outside of the air outlet; the bars (21) are arranged perpendicular to the air outlet, and the air outlet direction at the bars (21) is the same as the extension direction of the bars (21), so as to achieve a straight-blowing air outlet effect; the width of the bars (21) gradually decreases in a direction away from the main body (10); the main body (10) includes an inner decorative part (11) and an outer decorative part (12), and the inner decorative part (11) and the outer decorative part (12) are assembled to form a mounting cavity therebetween; the air duct includes a front air duct ( 13) and a rear air duct (14), the front air duct (13) and the rear air duct (14) are connected and installed in the installation cavity, the front air duct (13) has the air outlet on the side away from the rear air duct (14), and the grille structure (20) is arranged on the outside of the front air duct (13); the grille structure (20) has a plurality of bars (21), and the plurality of bars (21) are arranged at intervals along the length direction of the air outlet; the position of at least part of the bars (21) along the length direction of the air outlet is adjustable to adjust the distance between two adjacent bars (21).

2. The bladeless fan air outlet structure according to claim 1, characterized in that: The intervals between any two adjacent bars (21) are equal.

3. The bladeless fan air outlet structure according to claim 1, characterized in that: The grid bars (21) are in a trapezoidal shape.

4. The bladeless fan air outlet structure according to claim 1, characterized in that: The width of the extended end of the grid bar (21) is smaller than the width of the root of the grid bar (21).

5. The bladeless fan air outlet structure according to claim 1, characterized in that: The grid structure (20) and the main body (10) are integrally injection-molded.

6. The bladeless fan air outlet structure according to claim 1, characterized in that: The front air duct (13) and the rear air duct (14) are snap-connected.

7. The bladeless fan air outlet structure according to claim 6, characterized in that: The front air duct (13) is provided with at least one convex rib (131), and the rear air duct (14) is provided with a groove (141) that cooperates with the convex rib (131), and the convex rib (131) is embedded in the groove (141) so that the front air duct (13) and the rear air duct (14) are fixedly connected.

8. The bladeless fan air outlet structure according to claim 1, characterized in that: The front air duct (13) has a first adhesive surface (132), the interior decoration component (11) has a second adhesive surface (111), and the first adhesive surface (132) and the second adhesive surface (111) are bonded; and / or The front air duct (13) has a third adhesive surface (133), the outer decorative component (12) has a fourth adhesive surface (121), and the third adhesive surface (133) is bonded to the fourth adhesive surface (121).

9. The bladeless fan air outlet structure according to claim 1, characterized in that: The rear air duct (14) is snap-connected with the interior decoration component (11); and / or The outer decorative piece (12) is snap-connected with the inner decorative piece (11).

10. The bladeless fan air outlet structure according to claim 9, characterized in that: The rear air duct (14) has a first buckle (142), the interior decoration component (11) has a first buckle slot (112), and the first buckle (142) is engaged with the first buckle slot (112); and / or The inner decoration piece (11) has a second buckle (113), the outer decoration piece (12) has a second buckle slot (122), and the second buckle (113) is buckled with the second buckle slot (122).

11. The bladeless fan air outlet structure according to claim 1, characterized in that: The bladeless fan air outlet structure further includes at least one fastener, One of the fasteners passes through the rear air duct (14) and is screwed onto the interior decoration component (11); and / or Another fastener passes through the front air duct (13) and is screwed onto the interior decoration component (11).

12. A bladeless fan, characterized in that: The invention comprises the bladeless fan air outlet structure according to any one of claims 1 to 11.

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