Spray fan

Abstract

To improve spraying and blowing effects. [Solution] A spray fan according to one embodiment comprises a fan unit and a spray unit, the fan unit including a fan case and a blade assembly. The fan case includes an intake cover located on the intake side and an exhaust cover located on the exhaust side. The exhaust cover includes an atomizing section having spray holes and a plurality of exhaust louvers. The spray unit includes an atomizer and a water tank, which are disposed inside the fan case corresponding to the spray holes. The water tank includes a main casing, a water supply pipeline, and an atomizing section installed corresponding to the atomizer. The water supply pipeline connects the main casing and the atomizing section. The blade assembly can send air from the intake side through the outer circumference of the atomizing section and the outer circumference of the atomizer in sequence to a plurality of outlets, and then blow it out to the outside. Liquid inside the main casing is supplied to the atomizer via the water supply pipeline and the atomizing section, enabling the atomizer to atomize the liquid and eject the resulting spray from the spray holes.

Description

Technical Field

[0001] This application relates to the technical field of fans, and particularly to a kind of spray fan.

Background Art

[0002] In summer, the climate is hot. When people go out, it is inconvenient to carry a fan, and the cooling effect of a general hand-held fan is not very remarkable. Also, in crowded places, unpleasant odors such as sweat smell are pervasive, giving people a sense of discomfort. Therefore, people have developed various spray fans. This spray fan can humidify the air using a spray humidifier while blowing air, which can help with cooling on the one hand and timely replenish the moisture content in the air on the other hand. However, in some existing spray fans, when spraying, the spray and the blowing air current are likely to interfere with each other, reducing the user experience.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The main object of this application is to provide a spray fan that can improve the spray and blowing effects.

Means for Solving the Problems

[0004] To achieve the above object, the spray fan according to the embodiment of this application includes: A fan unit including a fan case and a blade assembly located within the fan case. The fan case includes an intake cover located on the intake side and an exhaust cover located on the exhaust side. The exhaust cover includes a mist outlet portion and a plurality of exhaust louvers connected in an annular arrangement on the outer peripheral wall of the mist outlet portion. The mist outlet portion includes spray holes, and a plurality of blow holes are formed in an annular shape around the spray holes between the plurality of exhaust louvers; a fan unit; A spray unit comprising an atomizer and a water tank, wherein the atomizer is located within the fan case and provided corresponding to the spray holes, the water tank comprises a main casing, at least one water supply line and an atomizing section, the at least one water supply line is provided to connect the main casing and the atomizing section, the atomizing section is provided corresponding to the atomizer, the atomizing section and the atomizer are located between the blade assembly and the exhaust cover, and the blade assembly is a spray unit that causes the intake-side air to pass sequentially over the outer circumference of the atomizing section and the outer circumference of the atomizer into a plurality of outlet holes and blow it out to the outside, The liquid inside the main box is supplied to the atomizer via at least one of the water supply pipelines and the atomizing unit, enabling the atomizer to atomize the liquid and eject the resulting spray from the spray holes. The airflow from the multiple outlets is arranged in a ring shape around the spray. [Effects of the Invention]

[0005] In the spray fan according to the embodiment of the present application, the atomizer can atomize the liquid and eject the resulting spray from the spray holes, while the airflow from the multiple outlets is arranged in an annular pattern around the spray (surrounding the spray). As a result, interference between the spray and the airflow of the spray fan is reduced, resulting in good airflow and spraying effects, and a high user experience. [Brief explanation of the drawing]

[0006] To more clearly explain the embodiments of this application or the technical solutions in the prior art, the drawings necessary for describing the embodiments or the prior art are briefly introduced below. As is obvious, the drawings in the following description are only a few embodiments of this application, and those skilled in the art can obtain other drawings based on the structures shown in these drawings without requiring any creative work.

[0007] [Figure 1] This is a perspective view of a spray fan according to the first embodiment of the present application. [Figure 2] This is a schematic diagram of a spray fan according to the first embodiment of the present application, showing the fan unit and the handle case rotated by a certain angle. [Figure 3] This is an exploded view of the fan unit and handle case in a spray fan according to the first embodiment of the present application. [Figure 4] This is an exploded view of the fan unit and water tank in a spray fan according to the first embodiment of the present application. [Figure 5] This is an exploded view of the water tank, atomizer, and water guide in a spray fan according to the first embodiment of the present application. [Figure 6] This is a structural diagram of the water tank in a spray fan according to the first embodiment of the present application. [Figure 7] This is an exploded view of the water tank and fiber liquid guide bar in a spray fan according to the first embodiment of the present application. [Figure 8] This is an exploded view of the water tank in a spray fan according to the first embodiment of the present application. [Figure 9] Figure 6 is an enlarged view of section IX. [Figure 10] This is a schematic diagram of the structure of a spray fan according to the second embodiment of the present application. [Figure 11] Figure 10 is a schematic diagram of the spray fan from another viewpoint. [Figure 12] Figure 10 is a schematic diagram of the structure of the spray fan after the exhaust cover has rotated relative to the handle. [Figure 13] Figure 10 shows the structure of the handle for the spray fan. [Figure 14] Figure 10 shows the structure of the mounting case for the spray fan. [Figure 15] Figure 14 is an exploded view of the mounting case for the spray fan. [Figure 16] Figure 11 is a schematic diagram of the structure of the spray unit of the spray fan shown. [Figure 17] Figure 16 is an exploded view of the spray unit of the spray fan shown. [Figure 18] This is a perspective view of a spray fan according to the third embodiment of the present application. [Figure 19] It is a perspective view of the spray fan according to the third embodiment of the present application from another angle. [Figure 20] It is an exploded view of the spray fan according to the third embodiment of the present application. [Figure 21] It is an exploded view of the spray fan according to the third embodiment of the present application from another angle. [Figure 22] It is a cross-sectional view of the spray fan according to the third embodiment of the present application. [Figure 23] It is a cross-sectional view of the spray fan according to the third embodiment of the present application from another angle. [Figure 24] It is a perspective view of the spray fan according to the fourth embodiment of the present application. [Figure 25] It is a perspective view of the spray fan according to the fourth embodiment of the present application from another angle. [Figure 26] It is an exploded view of the spray fan according to the fourth embodiment of the present application. [Figure 27] It is an exploded view of the spray fan according to the fourth embodiment of the present application from another angle. [Figure 28] It is a cross-sectional view of the spray fan according to the fourth embodiment of the present application. [Figure 29] It is a cross-sectional view of the spray fan according to the fourth embodiment of the present application from another angle. [Figure 30] It is a perspective view of the exhaust cover of the spray fan according to the fourth embodiment of the present application. [Figure 31] It is a perspective view of the exhaust cover of the spray fan according to the fourth embodiment of the present application from another angle. [Figure 32] It is a perspective view of the spray fan according to the fifth embodiment of the present application. [Figure 33] It is a perspective view of the spray fan according to the fifth embodiment of the present application from another angle. [Figure 34] It is an exploded view of the spray fan according to the fifth embodiment of the present application. [Figure 35] It is an exploded view of the spray fan according to the fifth embodiment of the present application from another angle. [Figure 36] It is a perspective view of the spray fan according to the sixth embodiment of the present application. [Figure 37]This is a perspective view from another angle of the spray fan according to the sixth embodiment of the present application. [Figure 38] This is a perspective view of a spray fan according to the seventh embodiment of the present application. [Figure 39] This is a perspective view from another angle of the spray fan according to the seventh embodiment of the present application. [Figure 40] This is an exploded view of a spray fan according to the seventh embodiment of the present application. [Figure 41] This is an exploded view of a spray fan according to the seventh embodiment of the present application, from another angle. [Figure 42] This is a cross-sectional view of a spray fan according to the seventh embodiment of the present application. [Figure 43] This is a cross-sectional view of a spray fan according to the seventh embodiment of the present application, from another angle. [Figure 44] This is a perspective view of the seventh embodiment of the present application in a folded state. [Figure 45] This is a partial configuration diagram of the fan unit of a spray fan according to the eighth embodiment of the present application. [Figure 46] Figure 45 is an exploded view of the fan unit. [Figure 47] Figure 45 is a cross-sectional view of the fan unit. [Figure 48] Figure 45 is a perspective view of the fan blade assembly in the fan unit shown. [Figure 49] This is an exploded view of a spray fan according to the eighth embodiment of the present application. [Figure 50] This is a perspective view of a spray fan according to the ninth embodiment of the present application. [Figure 51] This is a perspective view from another angle of the spray fan according to the ninth embodiment of the present application. [Figure 52] This is an exploded view of a spray fan according to the ninth embodiment of the present application. [Figure 53] This is an exploded view of a spray fan according to the ninth embodiment of the present application, from another angle. [Figure 54] This is a perspective view of a spray fan according to the tenth embodiment of the present application. [Figure 55] This is a perspective view from another angle of the spray fan according to the tenth embodiment of the present application. [Figure 56] This is a perspective view of a spray fan according to the 11th embodiment of the present application. [Figure 57] This is a perspective view from another angle of the spray fan according to the 11th embodiment of the present application. [Figure 58] This is an exploded view of a spray fan according to the 11th embodiment of the present application. [Figure 59] This is an exploded view of a spray fan from another angle according to the 11th embodiment of the present application. [Figure 60] This is an exploded view of the stand for a spray fan according to the 11th embodiment of the present application. [Figure 61] Figure 60 is an exploded view of the stand from another angle. [Figure 62] This is an exploded view of a fan according to the twelfth embodiment of the present application. [Figure 63] This is an exploded view of the fan according to the twelfth embodiment of the present application from another angle. [Figure 64] This is a perspective view of a fan motor unit according to the twelfth embodiment of the present application. [Figure 65] This is a perspective view from another angle of the motor unit of the fan according to the twelfth embodiment of the present application. [Figure 66] This is a schematic diagram of the structure of a fan charging management circuit according to the twelfth embodiment of the present application. [Figure 67] This is a schematic diagram of the fan drive circuit of a fan according to the twelfth embodiment of the present application. [Figure 68] This is a schematic diagram of the main control circuit of a fan according to the twelfth embodiment of the present application. [Figure 69] This is a schematic diagram of the structure of the light-emitting drive circuit for a fan according to the twelfth embodiment of the present application. [Figure 70] This is a schematic diagram of the structure of the fan indicator circuit according to the twelfth embodiment of the present application. [Figure 71] This is a schematic diagram of the battery protection circuit for a fan according to the twelfth embodiment of the present application. [Figure 72] This is a schematic diagram of the structure of a fan boost circuit according to the twelfth embodiment of the present application. [Modes for carrying out the invention]

[0008] The technical solutions in the embodiments of this application will be described clearly and completely below with reference to the drawings of the embodiments. Clearly, the embodiments described are only some, and not all, embodiments of this application. All other embodiments that a person skilled in the art could obtain without creative work based on the embodiments of this application are all within the scope of protection of this application.

[0009] Furthermore, if the embodiments of this application include directional indicators (e.g., up, down, left, right, front, back, etc.), such directional indicators are used solely to interpret the relative positional relationships and motion conditions between each component in a specific orientation (such as the orientation shown in the drawing). When that specific orientation changes, the directional indicators also change accordingly.

[0010] Furthermore, the terms "First," "Second," etc., in the embodiments of this application are used solely for the purpose of describing the purpose and should not be interpreted as indicating or implying their relative importance, nor as implicitly specifying the quantity of the indicated technical feature. Accordingly, features to which the terms "First" and "Second" are limited may explicitly or implicitly include at least one such feature.

[0011] Furthermore, the meaning of "and / or" throughout the text includes three parallel schemes; for example, "A and / or B" includes scheme A, scheme B, or schemes that satisfy both A and B.

[0012] Furthermore, while the technical solutions between each embodiment can be combined with each other, it is assumed that they are always feasible for a person skilled in the art. If a combination of technical solutions results in a contradiction or becomes impossible to implement, that combination of technical solutions shall be deemed non-existent and shall not be included in the scope of protection required by this application.

[0013] <First Example> As shown in Figures 1 to 8, the spray fan 10 according to the first embodiment of the present invention is a handheld spray fan and comprises a fan unit 20, a spray unit 30, and a handle case 40.

[0014] The spraying unit 30 includes a water tank 32 for storing water and an atomizer 31 for atomizing the water. The atomizer 31 is positioned in the center or near the center of the fan unit 20. Specifically, an atomizing tank 352 communicating with the water tank 32 and an atomizing hole 351 communicating with the atomizing tank 352 are provided in the center or near the center of the water tank 32. The atomizer 31 is mounted corresponding to the atomizing hole 351. The fan unit 20 is used to send the spray S generated by atomizing the atomizer 31 to the outside using the generated airflow F.

[0015] In this invention, by mounting the atomizer 31 in the center or near the center of the fan unit 20, when the fan unit 20 blows air, the generated airflow can sufficiently mix with the moisture generated by the atomizer 31 before blowing it out in the direction of the airflow. As a result, when a user uses the handheld fan of this invention, the orientation of the fan unit 20, i.e., the direction of airflow, coincides with the output direction of the spray S, so the user can easily control the direction of the spray S. This solves the problem in conventional spray fans where the direction of spray S cannot be properly controlled and a cooling effect cannot be obtained, making it easy to spray the spray S to the desired location and achieving a cooling effect at the specified location.

[0016] Specifically, since the water tank 32 is installed on the fan unit 20 and is positioned higher than the atomizing tank 352, the water in the water tank 32 can flow into the atomizing tank 352.

[0017] In the first embodiment, the water tank 32 includes an arc-shaped main casing 33 and two water supply pipes 34 that communicate with each end of the main casing 33. One end of each water supply pipe 34, away from the main casing 33, communicates with the atomizing tank 352, and the water inside the main casing 33 is transferred to the atomizing tank 352 via the water supply pipes 34. The main casing 33 is installed on the fan unit 20. That is, the water tank 32 is installed on the fan unit 20 and is positioned higher than the atomizing tank 352.

[0018] In the first embodiment, the fan unit 20 includes an exhaust cover 24 located on the intake side A and an intake cover 23 located on the exhaust side B. The exhaust cover 24 is connected to the intake cover 23 and presses down on the main casing 33, thereby fixing the water tank 32 to the fan unit 20.

[0019] An outer frame 243 is provided on the side of the exhaust cover 24 closest to the intake cover 23. A first stopper block 245 is provided on the top of the exhaust cover 24. A fitting groove 39 is provided on the side of the water tank 32 closest to the intake cover 23. When connecting the exhaust cover 24 and the intake cover 23, the main casing 33 is fixed by the cooperation of the first stopper block 245 and the exhaust cover 24. The main casing 33 is located outside the outer frame 243, and a part of the intake cover 23 is located inside the fitting groove 39. An escape opening 2430 is provided on the outer frame 243 at a position corresponding to the water supply conduit 34. Both the water supply conduit 34 and the atomizing tank 352 are located inside the fan unit 20. This protects the atomizer 31, allows for effective use of space, minimizes the volume of the handheld fan after installing the water tank 32 and atomizer 31, and makes it easy for the user to carry.

[0020] The two water supply pipelines 34, the atomizing tank 352, and the main casing 33 form a fan-shaped structure. Furthermore, one end of the water supply pipeline 34 connected to the main casing 33 is positioned higher than the other end connected to the atomizing tank 352. This allows all the water in the water tank 32 to be supplied to the atomizing tank 352 via the water supply pipelines 34 and to flow out from the atomizing holes 351, making it easier for the atomizer 31 to atomize the water and improving water utilization efficiency.

[0021] The fan unit 20 further includes a blade assembly 22 installed on the intake cover 23. The water supply pipeline 34 and the atomizing tank 352 are both located in front of the blade assembly 22. As a result, the spray generated by the atomizer 31 is directly blown out when the blade assembly 22 rotates. Since the structure and principle of the blade assembly 22 belong to the prior art, a detailed explanation of the rotation method of the blade assembly 22 is omitted here.

[0022] Inside the handle case 40 is a main circuit board 41 that is electrically connected to the atomizer 31 via a wire 310. The exhaust cover 24 or intake cover 23 is rotatably connected to the handle case 40. This makes it easier for the user to adjust the direction of the fan unit 20, making it convenient to use.

[0023] The atomizer 31 is an atomizing sheet. A mounting recess 353 that matches the atomizing sheet is formed at one end of the atomizing section 35 closest to the exhaust cover 24. The mounting recess 353 communicates with the atomizing tank 352 via an atomizing hole 351. The spraying unit further includes a decorative cover 36. The decorative cover 36 works in cooperation with the mounting recess 353 to press down on the atomizer 31, thereby fixing the atomizer 31 in place.

[0024] The decorative cover 36 has an opening 361 formed therein to expose at least a portion of the atomizer 31 and eject the spray S. The atomizing unit 35 further has a first wiring groove 354 that communicates with a mounting recess 353. A second wiring groove 340 is provided on the back of one of the water supply conduits 34. A first wiring hole 210 is provided in the exhaust cover 24 or intake cover 23 at a position where it is rotatably connected to the handle case 40. A second wiring hole 40a is provided in the handle case 40 at a position where it is rotatably connected to the exhaust cover 24 or intake cover 23, and which communicates with the inside of the handle case 40. The conductor 310 connected to the atomizer 31 passes through the first wiring groove 354, the second wiring groove 340, the first wiring hole 210, and the second wiring hole 40a in sequence, and is then placed inside the handle case 40 and electrically connected to the main circuit board 41 inside the handle case 40, thereby achieving an electrical connection between the atomizer 31 and the main circuit board 41, and controlling the starting and stopping of the atomizer 31 via the main circuit board 41. The spray S generated by the atomizer 31 is ejected from the spray hole 2410, and the blown airflow F from the multiple blow holes 2420 is arranged in a ring around the spray S. The space between the conductor 310 and the first wiring groove 354 can be sealed by applying adhesive. Furthermore, in order to reduce the thickness of the fan unit 20, a spray hole 2410 is provided in the center of the exhaust cover 24. The decorative cover 36 is placed inside the spray hole 2410.

[0025] In the first embodiment, the exhaust cover 24 and the intake cover 23 can be connected by snaps or screws. A water inlet 370 is provided near the top or at the top of the main casing 33. The water inlet 370 is provided with a sealing plug 371 to close the water inlet 370 and prevent water leakage from the water inlet 370.

[0026] In the first embodiment, a fiber liquid guide bar 343 is provided inside the water supply pipeline 34. When the atomizer atomizes water by high-frequency vibration, bubbles are generated, but the fiber liquid guide bar 343 can provide a place for the bubbles to adhere, and can also guide the bubbles to the water surface and eliminate them, preventing the bubbles from adhering to the atomizing sheet and isolating the atomizing sheet from the water, thus preventing the atomizing sheet from coming into contact with the water and preventing the spray from stopping, thus avoiding an impact on the spraying effect. The fiber liquid guide bar 343 can be a fiber cotton swab.

[0027] In the first embodiment, multiple ribs 331a are provided near both ends inside the main box 33. The multiple ribs 331a are arranged with a staggered position relative to each other. By using the staggered ribs 331a to divide the water level, the pressure of the water reaching the atomizing tank 352 can be reduced. This further reduces the generation of bubbles in the water and suppresses the occurrence of spray stoppage in the atomizer 31.

[0028] In the first embodiment, a water guide piece 355 (for example, a piece of cotton) is further provided inside the atomizing tank 352. The water guide piece 355 is located on the back of the atomizer 31. The water guide piece 355 is used to guide water to the atomizer 31, allowing the atomizer 31 to atomize the water, and the water guide piece 355 also prevents water from leaking out of the mouth of the atomizer 31, thereby preventing water leakage.

[0029] Specifically, in the first embodiment, the exhaust cover 24 includes a misting section 241 and a plurality of exhaust louvers 242 connected to the outer peripheral wall of the misting section 241 in an annular arrangement. The misting section 241 includes a spray hole 2410. Between the plurality of exhaust louvers 242, a plurality of discharge holes 2420 are formed, arranged annularly around the spray hole 2410.

[0030] The atomizer 31 is located inside the fan case 21 and is provided corresponding to the spray holes 2410. At least one water supply line 34 is provided to connect the main housing 33 and the atomizing unit 35. The atomizing unit 35 is provided corresponding to the atomizer 31. Moreover, the atomizing unit 35 and the atomizer 31 are located between the blade assembly 22 and the exhaust cover 24. As a result, the blade assembly 22 can blow air from the intake side A through the outer circumference of the atomizing unit 35 and the outer circumference of the atomizer 31 in sequence into the multiple outlet holes 2420 and blow it out to the outside. In addition, the liquid inside the main housing 33 can be supplied to the atomizer 31 via at least one water supply line 34 and the atomizing unit 35. As a result, the atomizer 31 can atomize the liquid and eject the resulting spray S from the spray holes 2410. Furthermore, the airflow F from the multiple outlets 2420 is arranged in a ring shape around the spray S.

[0031] In the spray fan 10 according to the embodiment of the present invention, the atomizer 31 can atomize a liquid to form a spray S which is ejected from the spray holes 2410, and the blown airflow F from the multiple outlet holes 2420 is arranged in an annular shape around the spray (surrounding the spray). As a result, there is little interference between the spray S and the blown airflow F of the spray fan 10, resulting in good airflow and spraying effects and a high user experience.

[0032] Furthermore, at least one inner wall 332a of the main casing 33 near at least one water supply pipeline 34 is located at the same level as or higher than the end of the at least one water supply pipeline 34 that connects to the main casing 33, along the direction of gravity D2. The end of the at least one water supply pipeline 34 that connects to the main casing 33 is higher than the end of the at least one water supply pipeline 34 that connects to the atomizing section 35, along the direction of gravity D2. As a result, the liquid inside the main casing 33 is more easily drawn into the atomizing section 35 via the at least one water supply pipeline 34 by gravity.

[0033] In this embodiment, at least one water supply pipeline 34 includes a first water supply pipeline 341 and a second water supply pipeline 342. The main casing 33 includes an arc structure having a cavity. The first water supply pipeline 341 connects one end of the main casing 33 to the atomizing unit 35, and the second water supply pipeline 342 connects the other end of the main casing 33 to the atomizing unit 35.

[0034] Along the direction from the blade assembly 22 to the exhaust cover 24 (which is the discharge direction D1 of the discharge hole 2420 and also the direction from the intake side to the exhaust side), the water tank 32, which is composed of the main casing 33, the first water supply pipeline 341, the second water supply pipeline 342, and the atomizing unit 35, is divided into a first part case 32a facing the blade assembly 22 and a second part case 32b facing the exhaust cover 24. The first part case 32a and the second part case 32b are sealed and connected as a single unit. The second part case 32b includes an atomizing hole 351 provided in the atomizing unit 35. The atomizer 31 is located in the atomizing tank 352 inside the atomizing unit 35 and ejects the spray S through the atomizing hole 351 and the spray hole 2410. Alternatively, the atomizer 31 is located outside the atomizing unit 35 and is provided corresponding to the atomizing holes 351, atomizing the liquid from the water tank 32 into a spray S from the atomizing holes 351 and ejecting it through the spray holes 2410. The exhaust cover 24 further includes an outer frame 243 that is annularly connected to the outer circumference of a plurality of exhaust louvers. The outer frame 243 has relief openings 2430 at positions corresponding to at least one water supply pipeline. One end of at least one water supply pipeline 34 that connects to the main box 33 is fitted and connected to the relief opening 2430.

[0035] In this embodiment, the atomizer 31 is located in a mounting recess 353 outside the atomizing unit 35. However, in other embodiments, the atomizer 31 can also be placed inside the atomizing unit 35 (for example, inside the atomizing tank 352).

[0036] To make it easier to understand, the fiber liquid guide bar 343 has one end extending to the main box 33 and the other end extending to the atomizing section 35, and is used to guide the liquid inside the main box 33 to the atomizing section 35.

[0037] As shown in Figure 9, the sealing plug 371 includes a sealing plug body 372 provided at the water inlet 370 and a connecting member 373 connected to the sealing plug body 372. One end of the connecting member 373 away from the sealing plug body 372 is sandwiched between the fan case 21 (for example, the outer frame 243 of the exhaust cover 24) and the water tank 32. The fan case 21 or the water tank 32 has a first fixing portion 374. The other end of the connecting member 373 away from the sealing plug body 372 has a second fixing portion 375. The first fixing portion 374 and the second fixing portion 375 are fixedly connected, thereby fixing the connecting member 373 between the fan case 21 and the water tank 32. The sealing plug 371 includes a flexible material. The flexible material includes silicone rubber or rubber. In this embodiment, one of the first fixing portion 374 and the second fixing portion 375 is a fixing column, and the other of the first fixing portion 374 and the second fixing portion 375 is a fixing hole. The fixing column is fitted into the fixing hole. The sealing plug body 372 includes a base plate 3711, a connecting portion 3712 connected to one side of the base plate 3711, and a sealing end 3713 connected to the side of the connecting portion 3712 away from the base plate 3711. The outer diameters of the sealing end 3713 and the base plate 3711 are both larger than the outer diameters of the connecting portion 3712 and the water inlet 370. The sealing end 3713 is deformable so that it can extend into the water tank 32 from the water inlet 370. The connecting portion 3712 is located inside the water inlet 370. The sealing end 3713 and the substrate 3711 seal the water inlet 370 by clamping the water tank 32 from the inside and outside, respectively. The sealing plug body 372 further includes an extension 3715 connected to one side of the substrate 3711. The extension 371 is used to allow the user to grasp and easily remove the sealing plug body 372 from the water inlet 370. Furthermore, the water tank 32 is provided with a first storage tank 372a located close to the water inlet 370. The first storage tank 372a is used to house and secure the substrate 3711. The main casing 33 of the water tank 32 is further provided with a second storage tank 373a. The second storage tank 373a is used to house and secure one end of the connecting member 373 that is away from the sealing plug body 372. The first fixing part 374 is provided at the bottom of the second storage tank 373a.

[0038] <Second Example> As shown in Figures 10 to 17, the spray fan 10 according to the second embodiment of the present application is also a handheld spray fan. To ensure understanding, the parts of the spray fan of the second embodiment that have basically the same structure as the spray fan of the first embodiment will not be described in detail in the second embodiment, but the description of the identical structure of these two embodiments in the first embodiment will basically also apply to the second embodiment.

[0039] The spray fan 10 comprises a casing unit 10a, a blade assembly 22, and a spray unit 30. The casing unit 10a has a handle case 40, an air duct located at one end of the handle case 40, and an exhaust cover 24 provided at one end of the air duct. For clarity, a fan case 21 is connected to one end of the handle case 40. The fan case 21 surrounds and forms an air duct and includes an intake cover 23 and an exhaust cover 24. The exhaust cover 24 is provided with a spray hole 2410 and a plurality of outlet holes 2420 arranged in an annular manner around the outer circumference of the spray hole 2410. The blade assembly 22 is mounted inside the air duct. The spray unit 30 includes a water tank 32, a water supply line 34, an atomizing unit 35, a fiber liquid guide bar 343, and an atomizer 31. The water tank 32 is provided in the casing unit 10a. The water supply line 34 is connected between the water tank 32 and the atomizing unit 35. The atomizing unit 35 is located near the spray holes 2410. The atomizer 31 is attached to the atomizing unit 35 and is exposed to the outside through the spray holes 2410. The fiber liquid guide bar 343 is installed inside the water supply pipeline 34, with one end extending into the water tank 32 and the other end extending to the position of the atomizing sheet.

[0040] Specifically, during use, the fan device blows air from inside the fan, and at the same time, water in the water tank 32 is sent to the atomizing unit 35 along the fiber liquid guide bar 343 in the water supply pipe 34. The atomizing sheet then atomizes the water in the atomizing unit 35 and sprays it to the outside through the spray holes 2410. In this way, because the spray holes 2410 are located in the center of the multiple discharge holes 2420, the spray is located in the middle of the airflow blown out from the fan unit 20, and the sprayed mist is not scattered. In addition, because the fiber liquid guide bar 343 stably delivers water to the atomizing sheet, there are no interruptions in spraying, and the stability of spraying is improved.

[0041] The technical solution of the present invention is realized by providing a casing unit 10a, a fan unit 20, and a spray unit 30. The casing unit 10a has a handle case 40 and an air duct located at one end of the handle case 40. The fan unit 20 is mounted inside the air duct. An exhaust cover 24 is further provided at one end of the air duct. The exhaust cover 24 is provided with a spray hole 2410 and a plurality of outlet holes 2420 arranged in an annular manner around the outer circumference of the spray hole 2410. The spray unit 30 includes a water tank 32, at least one water supply line 34, an atomizing unit 35, a fiber liquid guide bar 343, and an atomizing sheet. The water tank 32 is provided inside the casing unit 10a. The water supply line 34 is connected between the water tank 32 and the atomizing unit 35. The atomizing unit 35 is located near the spray hole 2410. The atomizing sheet is attached to the atomizing unit 35 and is exposed to the outside through the spray holes 2410. The fiber liquid guide bar 343 is installed inside the water supply pipeline 34, with one end extending into the water tank 32 and the other end extending to the position of the atomizer 31. As a result, even if the water supply pipeline 34 is relatively narrow, the fiber liquid guide bar 343 constantly guides the water in the water tank 32 to the atomizer 31 in the atomizing unit 35, so that the atomizer 31 does not stop spraying. In addition, since the atomizing unit 35 is near the spray holes 2410 and the spray holes 2410 are located midway between the multiple discharge holes 2420, the spray is located midway along the fan unit 20. As a result, compared to when the spray is located above or below the airflow, the spray is not biased and blends better with the airflow, further improving the stability of the spray.

[0042] As described above, the casing unit 10a includes a fan case 21 and a handle case 40. The fan case 21 is attached to one end of the handle case 40 and has an air duct. The water tank 32 is located on the side of the fan case 21 away from the handle case 40. By arranging the water tank 32 on the fan case 21 and on the side away from the handle case 40 in this way, an increase in the volume of the handle case 40 caused by arranging the water tank 32 on the handle case 40 is avoided, preventing the user from having difficulty holding the device. Furthermore, if bubbles are generated in the atomizing section 35, bubbles close to the fiber liquid guide bar 343 are adsorbed by the fiber liquid guide bar 343 and float up to their upper end along the fiber liquid guide bar 343, thus preventing the accumulation of bubbles in the atomizing section 35 and the water supply pipeline 34 and preventing the water flow from becoming uneven.

[0043] In some embodiments, the fan case 21 is circular, and the water tank 32 is arc-shaped and mounted to fit the side of the fan case 21 away from the handle case 40. In this way, both the exhaust cover 24 and the water tank 32 are arc-shaped and cooperate with each other, which prevents the water tank 32 from protruding outside the exhaust cover 24 compared to conventional water tanks 32.

[0044] In some embodiments, there are at least two water supply lines 34, each located on either side of the atomizing unit 35. One water supply line 34 connects the atomizing unit 35 to one end of the water tank 32, and the other water supply line 34 connects the atomizing unit 35 to the other end of the water tank 32. Specifically, fiber liquid guide bars 343 are provided inside both of these water supply lines 34 to deliver water from the water tank 32 to the atomizer 31, thereby making water delivery faster and further increasing water delivery efficiency.

[0045] To make it easier to understand, a mounting recess 211 may be provided on the side of the fan case 21 away from the handle case 40 (for example, on the outer frame 243 of the exhaust cover 24). At least a portion of the water tank 32 is located within the mounting recess 211. By positioning a portion of the water tank 32 inside the mounting recess 211 in this way, the portion of the water tank 32 that protrudes from the fan case 21 can be reduced. This also ensures that the water tank 32 is positioned by the exhaust cover 24, preventing it from shaking during use, making the structure of the water tank 32 more robust, and further stabilizing the use of the handheld spray fan.

[0046] As described above, the fan case 21 includes an exhaust cover 24 and an intake cover 23. An escape port 2430 is provided on the rear side of the exhaust cover 24, and a mounting recess 211 is provided on the side of the exhaust cover 24 away from the handle case 40. The water tank 32 is located in the mounting recess 211, and the water supply line 34 extends into the exhaust cover 24 through the escape port 2430. The intake cover 23 is placed over the rear side of the exhaust cover 24 and covers the rear side of the escape port 2430 and the mounting recess 211. The intake cover 23 and the exhaust cover 24 form the mounting recess 211. In this way, first the water tank 32 and the water supply line 34 are placed between the exhaust cover 24 and the intake cover 23, and then the exhaust cover 24 and the intake cover 23 are assembled, and at the same time the water supply line 34 can be extended into the escape port 2430. Since the intake cover 23 and the exhaust cover 24 form a mounting recess 211, and the water tank 32 is positioned within the mounting recess 211, the structure of the exhaust cover 24 and the intake cover 23 is simple, easy to mold, and relatively convenient to assemble.

[0047] In some embodiments, the fan case 21 is rotatably mounted on the handle case 40. Specifically, the fan unit 20 includes a motor and a blade assembly. The motor is mounted inside the exhaust cover 24. The blade assembly is mounted on the motor's rotating shaft. When the exhaust cover 24 rotates relative to the handle case 40, the motor and blade assembly rotate together with the exhaust cover 24. As a result, the airflow blown out from the blade assembly also rotates. This configuration allows the fan unit 20's airflow elevation angle to be adjusted by rotating the exhaust cover 24, which is convenient for the user. Specifically, the handle case 40 includes a main body 40b and an arc-shaped support 40c connected to the main body 40b. Both ends of the arc-shaped support 40c are rotatably connected to opposing sides of the fan case 21. This allows the fan unit 20 to be positioned within the storage space of the arc-shaped support portion 40c, and to rotate relative to the handle case 40 to adjust the elevation and airflow angle of the fan unit 21.

[0048] Specifically, the handle case 40 may include two mounting parts 411 provided at one end of the handle case 40. The two mounting parts 411 are spaced apart. Rotating parts 212 are provided on both opposing sides of the fan case 21. The two rotating parts 212 are arranged coaxially. The fan case 21 is located between the two mounting parts 411. Each mounting part 411 is rotatably connected to one other mounting part 411. In this way, the structure in which the fan case 21 is attached to the two mounting parts 411 via the rotating parts 212 on both sides provides greater stability when the fan case 21 rotates and superior structural strength compared to a structure in which the fan case 21 is attached using only one rotating part 212 and one mounting part 411.

[0049] Furthermore, the water tank 32 may include a first groove 311 and a first cover plate 322. The water supply pipeline 34 includes a second groove 312 and a second cover plate 331. The atomizing unit 35 includes a third groove 321 and a third cover plate 332. The first groove 311, the second groove 312, and the third groove 321 are integrally molded. Moreover, the second groove 312 is connected between the first groove 311 and the third groove 321. The first cover plate 322, the second cover plate 331, and the third cover plate 332 are integrally molded, with the first cover plate 322 covering the first groove 311, the second cover plate 331 covering the second groove 312, and the third cover plate 332 covering the third groove 321.

[0050] In this way, after integrally molding the first groove 311, the second groove 312, and the third groove 321, as well as the first cover plate 322, the second cover plate 331, and the third cover plate 332, the first cover plate 322, the second cover plate 331, and the third cover plate 332 can be placed over the first groove 311, the second groove 312, and the third groove 321, respectively, thereby forming the water tank 32, the water supply pipeline 34, and the atomizing unit 35. Furthermore, this structure facilitates the installation of the fiber liquid guide bar 343, and after placing the fiber liquid guide bar between the second groove 312 and the second cover plate 331, the installation of the fiber liquid guide bar 343 can be completed simply by assembling the second groove 312 and the second cover plate 331.

[0051] In some embodiments, the water tank 32, the water supply line 34, and the atomizing unit 35 are integrally connected. Specifically, this structure not only simplifies the molding of the water tank 32, the water supply line 34, and the atomizing unit 35, but also makes the assembly of the handheld spray fan relatively convenient.

[0052] Furthermore, the spray unit 30 further includes a water guide piece 355. The water guide piece 355 is provided inside the atomizing section 35 and is attached to the back surface of the atomizer 31. Specifically, when the water tank 32 is located above the atomizing section 35, the water pressure at the spray holes 2410 becomes relatively high, but the water guide piece 355 prevents water from leaking out of the atomizing section 35 through the spray holes 2410. The water guide piece 355 can be made of cotton.

[0053] To ensure understanding, the specific structures of the spray unit 30 in this embodiment, such as the water tank 32, water guide piece 355, fiber liquid guide bar 343, atomizer 31, and decorative cover 36, are basically the same as those in the first embodiment, and therefore will not be described again here.

[0054] Furthermore, a main circuit board 41 is provided inside the handle case 40. Both the blade assembly 22 and the atomizer 31 are electrically connected to the main circuit board 41. The handle case 40 is provided with a first button 421 and a second button 422 that are exposed to the outside. Both the first button 421 and the second button 422 are electrically connected to the main circuit board 41. The first button 421 is used to control the on / off and / or airflow of the blade assembly 22. The second button 422 is used to control the on / off of the atomizer 31. This structure allows the user to control the fan unit 20 and the spray unit 30 separately via the two buttons, making it convenient for the user to use, as it is possible to activate only the fan unit 20 to blow air or only the spray unit 30 to spray.

[0055] Furthermore, a rechargeable battery 424 is provided inside the handle case 40. The rechargeable battery 424 is electrically connected to the main circuit board 41. The handle case 40 is also provided with an externally exposed port assembly 423. The port assembly 423 is electrically connected to the main circuit board 41 and is used to charge the battery by connecting it to an external power source. This allows the handheld spray fan to be recharged and used repeatedly, eliminating the need for the user to purchase additional replacement batteries.

[0056] Furthermore, the water inlet 370 of the water tank 32 is provided with a removable sealing plug. This improves the sealing effect of the water tank 32 and makes opening and closing the water inlet 370 more convenient compared to when a screw cap is provided on the water inlet 370. In other embodiments, it is also possible to provide a screw cap on the water inlet 370 of the water tank 32. Since the structure of this sealing plug is basically the same as that of the sealing plug 371 in the first embodiment, a detailed explanation is omitted here.

[0057] Furthermore, a second wiring groove 340 is provided on the rear side of the water supply pipeline 34. As a result, the electrical connection wires between the atomizing sheet and the main circuit board 41 pass through the second wiring groove 340, thus preventing the electrical connection wires from being directly exposed to the outside of the water supply pipeline 34 and interfering with the motor or blade assembly.

[0058] Furthermore, a wiring hole 210 is provided inside the rotating part 212. The wiring hole 210 connects the second wiring groove 340 to the inside of the handle case 40. As a result, the electrical connection wires between the atomizing sheet and the main circuit board 41 pass through the second wiring groove 340, enter the inside of the handle case 40 through the wiring hole, and are connected to the main circuit board 41.

[0059] In some embodiments, the handle case 40 may include a first case and a second case. The first case is provided with engaging claws, and the second case is provided with engaging grooves. The first and second cases are detachably attached by the engaging claws and the engaging grooves. Furthermore, the first and second cases are fastened together by screws.

[0060] Furthermore, the handle case 40 is provided with at least one or more indicator lamps 425 connected to the main circuit board 41. This allows the remaining battery level 424 to be checked by the on / off state of the multiple indicator lamps 425 or the color state of at least one indicator lamp 425.

[0061] <Third Example> As shown in Figures 18 to 23, the spray fan 10 according to the third embodiment of the present application is also a handheld spray fan. To ensure understanding, in the spray fan 10 of the third embodiment, detailed explanations of parts that have basically the same structure as the spray fan 10 of the first and second embodiments may be omitted in the third embodiment. However, the descriptions of the structure that is basically the same as that of the third embodiment in the first and second embodiments also apply to the third embodiment.

[0062] In this embodiment, the spray fan 10 includes a fan unit 20, a spray unit 30, and a handle case 40. The fan unit 20 includes a fan case 21 and a blade assembly 22 located inside the fan case 21. The fan case 21 includes an intake cover 23 located on the intake side A and an exhaust cover 24 located on the exhaust side B. The exhaust cover 24 includes a misting section 241 and a plurality of exhaust louvers 242 connected to the outer peripheral wall of the misting section 241 in an annular arrangement. The misting section 241 includes a spray hole 2410. Between the plurality of exhaust louvers 242, a plurality of discharge holes 2420 are formed, arranged annularly around the spray hole 2410.

[0063] The spray unit 30 includes an atomizer 31 and a water tank 32. The atomizer 31 is located inside the fan case 21 and is provided corresponding to the spray holes 2410. The water tank 32 includes a main casing 33, at least one water supply line 34, and an atomizing section 35. At least one water supply line 34 connects the main casing 33 and the atomizing section 35. The atomizing section 35 is provided corresponding to the atomizer 31. The atomizing section 35 and the atomizer 31 are located between the blade assembly 22 and the exhaust cover 24. This allows the blade assembly 22 to blow air from the intake side A through the outer circumference of the atomizing section 35 and the outer circumference of the atomizer 31 in sequence into the multiple outlet holes 2420 and blow it out to the outside. Furthermore, the liquid inside the main box 33 is supplied to the atomizer 31 via at least one water supply pipe 34 and atomization unit 35, enabling the atomizer 31 to atomize the liquid and eject the resulting spray S from the spray holes 2410. The blown airflow F from the multiple discharge holes 2420 is arranged in a ring shape around the spray S.

[0064] In the spray fan 10 provided in the embodiment of the present invention, the atomizer 31 atomizes the liquid to produce a spray S which is ejected from the spray hole 2410, while the blown airflow F from multiple outlet holes 2420 is arranged in an annular shape around the spray S. As a result, interference between the spray S and the blown airflow F of the spray fan 10 is reduced, resulting in good airflow and spraying effects, and a high user experience.

[0065] At least one water supply line 34 is located on one side of the outlet 2420. Viewed from the discharge direction D1 of the outlet 2420, the projection of at least one water supply line 34 overlaps with at least one of the multiple outlet 2420 or at least one of the multiple exhaust louvers 242. In this embodiment, the spray fan 10 further includes at least one windbreak structure 50. Viewed from the discharge direction D1, the projection of at least one windbreak structure 50 overlaps with or is offset from at least one water supply line 34. Moreover, the at least one windbreak structure 50 is used to balance the discharge airflow from the multiple outlets 2420 that has been disturbed by at least one water supply line 34. As a result, the discharge airflow F from the multiple outlets 2420 basically surrounds the spray S uniformly, and the direction of the spray S is basically along the central axis of the spray hole 2410. Since the airflow F from the multiple outlets 2420 is arranged in a ring around the spray S in a basically uniform manner, the spray S can be ejected basically along the discharge direction D1, resulting in a good spraying effect. Furthermore, phenomena such as water accumulation on the exhaust cover 24 or the front part of the atomizer 31 (e.g., the outer surface of the decorative cover 36) due to the spray being deviated from the discharge direction can be avoided, resulting in a good user experience.

[0066] To make it clear, if the number of at least one water supply pipeline 34 is multiple and is distributed basically uniformly in the circumferential direction of the exhaust cover 24, then the number of at least one windbreak structure 50 is equal to the number of at least one water supply pipeline 34 and their projections overlap. This achieves the effect of balancing the discharge airflow from the multiple outlets 2420.

[0067] To make it clear, if the number of at least one water supply conduit 34 is one or more and they are arranged unevenly along the circumference of the exhaust cover 24, then the number of at least one windbreak structure 50 is the same or different as the number of at least one water supply conduit 34, but their projections are offset, so that the at least one windbreak structure 50 and the at least one water supply conduit 34 are together arranged approximately uniformly along the circumference of the exhaust cover 24. This achieves the effect of balancing the discharge airflow F from the multiple discharge holes 2420.

[0068] Specifically, the main casing 33 is located above the fan case 21, and at least one water supply conduit 34 is located in the upper half of the fan case 21 along the direction of gravity D2. This arrangement allows the liquid in the main casing 33 to flow into the atomizing section 35 via the at least one water supply conduit 34 due to the action of gravity. At least one windbreak structure 50 includes a first windbreak structure 51. The first windbreak structure 51 is located in the lower half of the fan case 21 along the direction of gravity D2.

[0069] Furthermore, at least one inner wall 332a of the main casing 33 near at least one water supply pipeline 34 is at the same height as, or higher than, the end of at least one water supply pipeline 34 that connects to the main casing 33 along the direction of gravity D2. The end of at least one water supply pipeline 34 that connects to the main casing 33 is higher than the end of at least one water supply pipeline 34 that connects to the atomizing section 35 along the direction of gravity D2. This makes it easier for the liquid in the main casing 33 to flow into the atomizing section 35 via at least one water supply pipeline 34 due to the action of gravity.

[0070] In this embodiment, at least one water supply pipeline 34 includes a first water supply pipeline 341 and a second water supply pipeline 342. The main casing 33 includes an arc-shaped structure with a cavity. The first water supply pipeline 341 connects one end of the main casing 33 to the atomizing unit 35. The second water supply pipeline 342 connects the other end of the main casing 33 to the atomizing unit 35. Along the direction from the blade assembly 22 toward the exhaust cover 24 (which is also the discharge direction D1), the water tank 32, which is composed of the main casing 33, the first water supply pipeline 341, the second water supply pipeline 342 and the atomizing unit 34, is divided into a first part case 32a facing the blade assembly 22 and a second part case 32b facing the exhaust cover 24. The first part case 32a and the second part case 32b are integrally connected to seal. The second part of the case 32a includes an atomizing hole 351 provided in the atomizing unit 35. The atomizer 31 is located in the atomizing tank 352 inside the atomizing unit 34 and ejects the spray S through the atomizing hole 351 and the spray hole 2410. Alternatively, the atomizer 31 is located outside the atomizing unit 35 and is provided corresponding to the atomizing hole 351, atomizing the liquid in the water tank 32 from the atomizing hole 351 to form the spray S, and ejecting it through the spray hole 2410. The exhaust cover 24 further includes an outer frame 243 connected in an annular manner around the outer circumference of a plurality of exhaust louvers. An escape opening 2430 is provided in the outer frame 243 at a position corresponding to at least one water supply pipeline 34. One end of at least one water supply pipeline 34 that connects to the main box 33 is fitted and connected to the escape opening 2430. At least one windbreak structure 50 is provided on the exhaust cover 24 and is connected between the mist outlet section 241 and the outer frame 243.

[0071] Specifically, in this embodiment, at least one windbreak structure 50 includes a first windbreak structure 51, a second windbreak structure 52, and a third windbreak structure 53. Viewed from the discharge direction D1, the first windbreak structure 51 and the second windbreak structure 52 correspond to the positions of the first water supply pipeline 341 and the second water supply pipeline 342, respectively. Along the circumferential direction of the exhaust cover 24, the circumferential distance W1 between the third windbreak structure 53 and the first windbreak structure 51 is equal to the circumferential distance W2 between the third windbreak structure 53 and the second windbreak structure 52. The width H1 of the third windbreak structure 53 is greater than or equal to the width H2 of the first windbreak structure 51 and the width H2 of the second windbreak structure 52. Furthermore, the extension direction of the third windbreak structure 53 can generally be aligned with the direction of gravity D2. The three windbreak structures 51, 52, and 53 described above can balance the discharge airflow F from the multiple discharge holes 2420. In particular, since the width H1 of the third windbreak structure 53 is greater than or equal to the width H2 of the first windbreak structure 51 and the width of the second windbreak structure 52, the balancing effect can be further improved.

[0072] To make it clear, each windbreak structure 51, 52, or 53 may include a windbreak plate 50a. The windbreak plate 50a can be connected between two adjacent exhaust louvers 242 and together with the two adjacent exhaust louvers 242 form an outward-facing groove structure. This achieves a concealing effect and enhances the aesthetic appearance of the exhaust cover 24. If the width of the third windbreak structure 53 is relatively wide, the third windbreak structure 53 may further include two windbreak plates 50a and a convex structure 50b connected to the two windbreak plates 50a, which also achieves a concealing effect and enhances the aesthetic appearance of the exhaust cover 24.

[0073] In this embodiment, the atomizer 31 is located outside the atomizing unit 35, and the atomizing unit 35 has a mounting recess 353 on the surface near the exhaust cover 24, with the atomizer 31 located within the mounting recess 353. The atomizing unit 35 further has a first wiring groove 354 that communicates with the mounting recess 353. The conductor 310 of the atomizer 31 is led out through the first wiring groove 354. The spraying unit 30 further includes a decorative cover 36. The decorative cover 36 is fitted over the side of the atomizer 31 near the exhaust cover 24 and is snap-fit ​​connected to the atomizing unit 35. The decorative cover 36 includes a main body 362 having an opening 361. The main body 362 is fitted over the side of the atomizer 31 near the exhaust cover 24 and is snap-fit ​​connected to the atomizing unit 35. The spray from the atomizer 31 is ejected through the opening 361.

[0074] Furthermore, the decorative cover 36 includes a wiring section 363 connected to the main body 362. A second wiring groove 364 is provided on the side of the wiring section 363 away from the air outlet side. The conductor 310 of the atomizer 31 is routed through the first wiring groove 354 and the second wiring groove 364 in that order.

[0075] In this embodiment, the intake cover 23 includes a mounting portion 231, a plurality of intake louvers 232 connected to the outer peripheral wall of the mounting portion 231 so as to be arranged in an annular manner, and a frame 234 connected to the outer periphery of the plurality of intake louvers 232. The mounting portion 231 has a mounting structure 233 on the side closer to the exhaust cover 24. The blade assembly 22 is fixed to the intake cover 23 by the mounting structure 233. The blade assembly 22 includes a motor 222 and a blade assembly 221. The motor 222 is mounted on the mounting structure 223 and connected to the blade assembly 221. At least one inner surface of the plurality of intake louvers 232 has a second wiring groove 2320. The conductors 2220 of the motor 222 are routed through the second wiring groove 2320. The fan case 21 may further include a wiring cover 2100. The wiring cover 2100 is placed over the second wiring groove 2320.

[0076] Similar to the first and second embodiments, the spray unit 30 may further include a water guide piece 355 and a fiber liquid guide bar 343. The water guide piece 355 is provided on the liquid introduction side of the atomizer 31 and is used to introduce the liquid from the atomizing section 35 to the atomizer 31. At least one fiber liquid guide bar 343 is provided in at least one water supply conduit 34. One end of the fiber liquid guide bar 343 extends to the main casing 33 and the other end extends to the atomizing section 35 and is used to guide the liquid in the main casing 33 to the atomizing section 35.

[0077] The water tank 32 further has a water inlet 370. The spray unit 30 further includes a sealing plug 371 that is at least partially detachably provided on the water inlet 370. The specific structure of the sealing plug 371 is basically the same as the specific structure of the sealing plug 371 of the first embodiment, so it will not be described again here. Furthermore, the sealing end 3713 may be provided with a recess 3714. The recess 3714 can extend from the surface of the sealing end 3713 away from the connection portion 3712 into the connection portion 3712. The recess 3714 makes the sealing end 3713 more deformable and easier to insert into the water tank 32 through the water inlet 370.

[0078] In this embodiment, the spray fan 10 further includes a main circuit board 41 and a battery 424 located within the handle case 40, at least one button 421-422 located within at least one buttonhole in the handle case 40, and a port assembly 423 located within a charging opening in the handle case 40. The at least one button 421-422, the battery 424, the conductor 310 of the atomizer 31, the conductor 2220 of the blade assembly 22, and the port assembly 423 are all electrically connected to the main circuit board 41. The at least one button includes a first button 421 and a second button 422. The first button 421 is used to control the on / off state and / or the airflow level of the blade assembly 22. The second button 422 is used to control the on / off state of the atomizer 31.

[0079] The spray fan 10 further includes a display 426. The display 426 is mounted in a corresponding display opening in the handle case 40. The display 426 is electrically connected to the main circuit board 41 and is used to improve the user experience by displaying the operating status of the spray fan 10, such as the wind speed level and / or the remaining battery level of the battery 424.

[0080] <Fourth Example> As shown in Figures 24 to 31, the spray fan 10 according to the fourth embodiment of the present application is also a handheld spray fan. In the spray fan 10 of the fourth embodiment, detailed explanations may be omitted for parts that have basically the same structure as the spray fans 10 of the first to third embodiments, but the descriptions of the structures that are basically the same as those of the fourth embodiment in the first to third embodiments also apply to the fourth embodiment. Below, we will mainly explain the key parts of the spray fan 10 of the fourth embodiment, or the differences from the spray fans 10 of the first to third embodiments.

[0081] In the fourth embodiment, the fan case 21 of the spray fan 10 differs from that of the first to third embodiments. Specifically, the fan case 21 includes an inner cover 25 in addition to the intake cover 23 and exhaust cover 24. The inner cover 25 includes an inner frame 253 corresponding to the outer frame 243, a plurality of inner grid plates 252 corresponding to a plurality of exhaust louvers 242, and an inner plate portion 251 corresponding to the misting section 241. The plurality of inner grid plates 252 are connected between the inner plate portion 251 and the inner frame 253. The water tank 32 is provided between the exhaust cover 24 and the inner cover 25. The inner cover 25 further includes a wiring portion 254 connected between the inner plate portion 251 and the inner frame 253. The wiring portion 254 has a second wiring groove 2540 on the side closer to the exhaust cover 24. The conductor 310 of the atomizer 31 is drawn out by passing through the first wiring groove 354 and the second wiring groove 2540 in order.

[0082] The inner cover 25 further includes a mounting structure 255 provided on the side of the inner plate portion 251 away from the exhaust cover 24. The blade assembly 22 is secured to the inner cover 25 by the mounting structure 255. The blade assembly 22 includes a motor 222 and a blade assembly 221. The motor 222 is mounted on the mounting structure 255 and connected to the blade assembly 221. The inner plate portion 251 has a wiring hole 2510. The conductors 2220 of the motor 222 are routed through the wiring hole 2510, a first wiring groove 354, and a second wiring groove 2540.

[0083] The water tank 32 further includes a decorative box 38. The decorative box 38 is located below the fan case 21 and its ends are connected to the ends of the main box 33, forming an annular structure arranged in a ring around the fan case 21. In this embodiment, at least one inner wall 332a means the case of two inner walls 332a. The two inner walls 332a are located at both ends of the main box 33 and at both ends of the decorative box 38, respectively. Each inner wall 332a is located between the cavity of the main box 33 and the cavity of the decorative box 38 and is used to separate the cavity of the main box 33 and the cavity of the decorative box 38. The fan case 21 further includes an air guide casing 26. The air guide casing 26 is located between the intake cover 23 and the blade assembly 22. The inner diameter of the air guide casing 26 gradually increases from the intake side A to the exhaust side B, and is used to introduce air from the intake cover 23 into the blade assembly 22.

[0084] In this embodiment, at least one windbreak structure 50 includes a first windbreak structure 51 and a second windbreak structure 52. Viewed from the discharge direction, the first windbreak structure 51 and the second windbreak structure 52 are located in the lower half of the fan case 21 along the direction of gravity D2. The positions of the first windbreak structure 51 and the second windbreak structure 52 are provided symmetrically with respect to the first water supply pipeline 341 and the second water supply pipeline 342, respectively.

[0085] Specifically, as shown in Figures 30 and 31, the first windbreak structure 51 and the second windbreak structure 52 may include a first windbreak plate 511 and a second windbreak plate 512. The ends of the first windbreak plate 511 and the second windbreak plate 512 closest to the blade assembly 22 are connected to each other. In detail, the first windbreak plate 511 and the second windbreak plate 512 may, but are not limited to, be connected at a certain angle. As a result, the width of the first windbreak structure 51 and the second windbreak structure 52 gradually increases along the direction of discharge. Also, the maximum width of the first windbreak structure 51 and the second windbreak structure 52 may be basically the same as the width of the first water supply pipeline 341 and the second water supply pipeline 342, thereby achieving a good wind force balance effect.

[0086] To make it easier to understand, the first windbreak structure 51 and the second windbreak structure 52 can further form an outlet 2420 together with the exhaust louvers 242 on both sides.

[0087] Furthermore, the fan case 21 may also include a decorative cover 27. The decorative cover 27 is connected to the side of the exhaust cover 24 away from the blade assembly 22 of the misting section 241. The decorative cover 27 may also be a decorative ring. The decorative ring and the misting section 241 are connected via fittings by fixing holes and fixing posts.

[0088] To make it clear, in this embodiment, the decorative cover 36 is made of a metal material. Multiple ribs 360 may be formed on the outer surface of the decorative cover 36. The multiple ribs 360 are arranged in an annular pattern on the outer surface of the decorative cover 36 and are used to improve the water accumulation phenomenon of the spray S on the outer surface of the decorative cover 36, thereby increasing the reliability of the product.

[0089] More specifically, in this embodiment, an inner cover 25 and an exhaust cover 24 are provided in order on the exhaust side of the blade assembly 22. The exhaust cover 24 comprises a misting section 241, an outer frame 243, and exhaust louvers 242 connected between the misting section 241 and the outer frame 243. The inner cover 25 includes an inner frame 253 provided corresponding to the outer frame 243, a plurality of inner grid plates 252 provided corresponding to the plurality of exhaust louvers 242, and an inner plate section 251 provided corresponding to the misting section 241. The plurality of inner grid plates 252 are connected between the inner plate section 251 and the inner frame 253.

[0090] Multiple exhaust louvers 242 are formed between multiple air outlets 2420. Multiple air vents 2520 are also formed between multiple inner grid plates 252.

[0091] Multiple exhaust louvers 242 are distributed almost uniformly in the circumferential direction of the exhaust cover 24. Each exhaust louver 242 is generally arranged radially from the center of the annular structure of the exhaust cover 24. That is, the straight line along which the extension direction R1 of each exhaust louver 242 is located passes through the center of the annular structure of the exhaust cover 24.

[0092] Multiple inner grid plates 252 are distributed almost uniformly along the circumferential direction of the inner cover 25. Each inner grid plate 252 is positioned offset from the radial direction R2 (which is the same as the extension direction R1) of the center of the annular structure of the inner cover 25. That is, the straight line along which the extension direction R3 of each inner grid plate 252 lies is offset from the center of the annular structure of the inner cover 25 and differs from the extension direction R1 of the corresponding exhaust louvers 242. In other words, the extension direction R3 of each inner grid plate 252 differs from the extension direction R1 of the corresponding exhaust louvers 242, and the outer end of each inner grid plate 252 along the extension direction R3 (the end furthest from the center of the annular structure) is offset from the extension direction R1 on the side facing the rotation direction R4 of the blade assembly 22.

[0093] The extension direction R3 of each inner grid plate 252 differs from the extension direction R1 of the corresponding exhaust louver 242. As a result, the inner cover 25 and the exhaust cover 24 form two air-concentrating structures in front of and behind the blade assembly 22. That is, the multiple inner grid plates 252 and the multiple exhaust louvers 242 sequentially compress the airflow from the blade assembly 22, and after the airflow is compressed, it becomes more focused and blown out more intensely. This effectively increases the exhaust airflow, providing the user with a cooler experience.

[0094] In particular, since the side of the blade assembly 22 facing the rotational direction R4 at the outer end of each inner grid plate 252 in the extension direction R3 (the end furthest from the center of the annular structure) is offset from the extension direction R1, the compression effect of the discharged airflow can be further improved, and consequently the exhaust airflow also increases.

[0095] <Example 5> As shown in Figures 32 to 35, the spray fan 10 according to the fifth embodiment of the present application is also a handheld spray fan. In the spray fan 10 of the fifth embodiment, detailed explanations may be omitted for parts that have basically the same structure as the spray fans 10 of the first to fourth embodiments, but the descriptions of the structures that are basically the same as those of the fifth embodiment in the first to fourth embodiments also apply to the fifth embodiment. Below, we will mainly explain the key parts of the spray fan 10 of the fifth embodiment, or the differences from the spray fan 10 of the fourth embodiment.

[0096] In the fifth embodiment, the first button 421 and the second button 422 are provided on the left and right sides of the handle case 40, respectively. A display 426 is provided in the display window on the air outlet side of the handle case 40. The display 426 is connected to the main circuit board 41 and is used to improve the user experience by displaying the operating status of the spray fan 10, such as the wind speed range and / or the remaining battery level of the battery 424.

[0097] <Sixth Example> As shown in Figures 36 to 37, the spray fan 10 according to the sixth embodiment of the present application is also a handheld spray fan. In the spray fan 10 of the sixth embodiment, detailed explanations may be omitted for parts that have basically the same structure as the spray fans 10 of the first to fifth embodiments, but the descriptions of the structures that are basically the same as those of the sixth embodiment in the first to fifth embodiments also apply to the sixth embodiment. Below, we will mainly explain the key parts of the spray fan 10 of the sixth embodiment, or the differences from the spray fan 10 of the fifth embodiment.

[0098] In the sixth embodiment, the water tank 32, the decorative box 38, and the inner wall 332a connected between them are made of transparent material. This allows for intuitive visual confirmation of the liquid condition inside the water tank 32. It also makes the appearance of the spray fan 10 more aesthetically pleasing. Furthermore, in the first to fifth embodiments, the water tank 32 can also be made of transparent material. This allows for intuitive visual confirmation of the liquid condition inside the water tank 32.

[0099] <Example 7> As shown in Figures 38 to 44, the spray fan 10 according to the seventh embodiment of the present application is a handheld folding spray fan. In the spray fan 10 of the seventh embodiment, detailed explanations may be omitted for parts that have basically the same structure as the spray fans 10 of the first to sixth embodiments, but the descriptions of the structures that are basically the same as those of the seventh embodiment in the first to sixth embodiments also apply to the seventh embodiment. Below, we will mainly explain the key parts of the spray fan 10 of the seventh embodiment or the differences from the spray fan 10 of the third embodiment.

[0100] In this embodiment, the handle case 40 and the fan case 21 are rotatably connected. This allows the handle case 40 to rotate relative to the fan case 21, enabling switching between a handheld state and a folded connection state. The handle case 40 includes a support surface 401. As shown in Figure 44, when the handle case 40 and the fan case 21 are in the folded connection state, the support surface 401 is positioned on an external object so that the handle case 40 supports the fan case 21.

[0101] Furthermore, the first button 421 and the second button 422 are both located on the same side of the handle case 40. The display 426 is located on the support surface 401. A strap hole 428 is also provided on the side wall of the handle case 40.

[0102] <Eighth Example> As shown in Figures 45 to 49, the spray fan 10 according to the eighth embodiment of the present application is also a handheld folding spray fan. In the spray fan 10 of the eighth embodiment, detailed explanations may be omitted for parts that have basically the same structure as the spray fans 10 of the first to seventh embodiments, but the descriptions of the structures that are basically the same as those of the eighth embodiment in the first to seventh embodiments also apply to the eighth embodiment. Below, we will mainly explain the key parts of the spray fan 10 of the eighth embodiment, or the differences from the spray fan 10 of the fourth embodiment.

[0103] Specifically, in the eighth embodiment, the fan unit includes an air duct 10' (corresponding to the inner cover 25 in the fourth embodiment) and a blade assembly 20'. The air duct 10' includes an outer cylinder 11', a mounting portion 12', and a plurality of first blades 13'. The mounting portion 12' is located inside the outer cylinder 11' and is positioned at a distance from the inner wall surface of the outer cylinder 11'. The plurality of first blades 13' are connected between the outer cylinder 11' and the mounting portion 12' and are distributed at intervals along the circumferential direction of the mounting portion 12'. Inside the outer cylinder 11' is a mounting cavity 215'.

[0104] The blade assembly 20' includes a hub 21' and a plurality of second blades 22'. The hub 21' is rotatably mounted to a mounting portion 12' and is located within a mounting cavity 215'. The side of the hub 21' away from the mounting portion 12' has a spherical surface 212'. The plurality of second blades 22' are provided on the spherical surface 212' and are spaced apart along the circumferential direction of the hub 21'. The inclination direction of the second blades 22' is opposite to that of the first blade 13' (for example, if the first blade 13' is right-handed, the second blades 22' are left-handed; or if the first blade 13' is left-handed, the second blades 22' are right-handed). The airflow direction is from the first blade 13' towards the second blades 22'.

[0105] In the proposed technology, by setting the inclination direction of the second blade 22' opposite to that of the first blade 13', the blade assembly 20' rotates to introduce airflow into the wind tube 10', and then the airflow is compressed as it passes through the second blade 22'. As a result, the airflow is more focused after compression and blown out more intensely, effectively increasing the exhaust airflow force. Furthermore, by making the windward surface of the hub 21' a spherical surface 212' and providing multiple second blades 22' on the spherical surface 212', the spherical surface 212' exhibits a good guiding effect during operation, effectively avoiding the generation of turbulence. This ensures a large exhaust airflow force while simultaneously avoiding excessive noise.

[0106] In some embodiments, the hub 21' includes a spherical outer shell 211', a mounting inner cylinder 213', and a plurality of reinforcing ribs 214'. The outer surface of the spherical outer shell 211' has a spherical surface 212'. The plurality of reinforcing ribs 214' are provided inside the spherical outer shell 211' and are positioned away from the mounting portion 12' of the spherical outer shell 211'. The mounting inner cylinder 213' is provided inside the spherical outer shell 211' and is located between the reinforcing ribs 214' and the mounting portion 12'. This configuration allows for increased structural strength of the spherical outer shell 211' via the reinforcing ribs 214' and the mounting inner cylinder 213'. Furthermore, the structure of the mounting inner cylinder 213' can be made relatively regular, facilitating the attachment of the blade assembly 20'.

[0107] In some embodiments, a mounting shaft 121' is provided in the mounting portion 12'. The mounting inner cylinder 213' is spaced outside the mounting shaft 121' and forms a mounting cavity 215' between it and the mounting shaft 121'. The fan unit further includes a motor. The motor is mounted inside the mounting cavity 215'. The motor's stator is connected to the mounting shaft 121'. The motor's rotor is connected to the hub 21'. In other words, by integrating the motor into the fan unit, the structural compactness of the fan unit can be improved, and the assembly of the handheld fan can be made easier.

[0108] In some embodiments, a mounting groove 122' and a wiring hole 123' connecting the mounting cavity 215' and the mounting groove 122' are provided on the side of the mounting portion 12' away from the hub 21'. The mounting groove 122' is used to mount a circuit board. By mounting the circuit board using the mounting groove 122' in this way, motor wiring is made easier, while providing a connector on the circuit board makes wiring easier when assembling a handheld fan.

[0109] In some embodiments, the number of first blades 13' is greater than the number of second blades 22'. This configuration improves the air collection effect and increases the exhaust airflow.

[0110] In some embodiments, the upwind area of ​​the second blade 22' is larger than the upwind area of ​​the first blade 13'. This allows the second blade 22' to drive and flow more airflow as it rotates, thereby increasing the exhaust airflow.

[0111] In some embodiments, the fan unit further includes an air guide tube 30' (corresponding to the exhaust cover 24 in the fourth embodiment). The air guide tube 30' is located on the side of the mounting portion 12' away from the hub 21'. The air guide tube 30' includes an outer cylinder portion 31' (corresponding to the outer frame 243), a central portion 33' (corresponding to the misting portion 241) provided inside the outer cylinder portion 31', and a plurality of connectors 32' (corresponding to the exhaust louvers 242) connected between the outer cylinder portion 31' and the central portion 33'. The outer cylinder portion 31' abuts against the outer cylinder body 11', and the outer diameter of the central portion 33' is larger than the outer diameter of the mounting portion 12'. That is, the pitch between the central portion 33' and the outer cylinder portion 31' is smaller than the pitch between the mounting portion 12' and the outer cylinder body 11'. The exhaust airflow is increased because the airflow is further compressed as it flows between the central portion 33' and the outer cylinder portion 31'. Specifically, the outer cylinder portion 31' abuts against the air tube 10', and the outer diameter of the air tube 10' is larger than the outer diameter of the mounting portion 12'. A mist outlet hole 2410 is provided in the central part 33'.

[0112] In some embodiments, the air guide tube 30' and the outer cylinder portion 31' are detachably connected. This configuration makes it easy to attach and detach the air guide tube 30', allowing for convenient maintenance.

[0113] In some embodiments, a storage compartment 331' is provided on the side of the central part 33' away from the mounting portion 12'. This allows the circuit structure to be mounted via the storage compartment 331' when used in a handheld fan, improving the space utilization rate of the central part 33'.

[0114] As shown in Figure 49, this embodiment further proposes a type of handheld spray fan 10. The spray fan 10 includes the fan unit shown in Figures 45 to 48. The handle case 40 and the fan case 21 may be rotatably connected. This allows the handle case 40 to rotate relative to the fan case 21, switching between a handheld state and a folded connection state. The handle case 40 includes a support surface 401. When the handle case 40 and the fan case 21 are in the folded connection state, the support surface 401 is positioned on an external object so that the handle case 40 supports the fan case 21.

[0115] <Example 9> As shown in Figures 50 to 53, the spray fan 10 according to the ninth embodiment of the present application is a clip-type / desktop spray fan. In the clip-type / desktop spray fan 10 of the ninth embodiment, detailed explanations may be omitted for parts that have basically the same structure as the spray fans 10 of the first to sixth embodiments, but the descriptions of the structures that are basically the same as those of the ninth embodiment in the first to sixth embodiments also apply to the ninth embodiment. Below, we will mainly explain the key parts of the spray fan 10 of the ninth embodiment, or the differences from the spray fans 10 of the first to sixth embodiments.

[0116] The spray fan 10 includes a clamping mechanism 61. The clamping mechanism 61 is connected to the fan case 21 and is used to install the spray fan 10 onto an external object. Specifically, the two clamping parts 611 of the clamping mechanism 61 are rotatably connected. By controlling the elastic member 612, the two clamping parts 611 can be switched between a clamped state and a non-clamped state.

[0117] The spray fan 10 further includes a main circuit board 41 located within the fan case 21, at least one button located in at least one buttonhole of the intake cover 23, and a port assembly 423 located in a charging opening of the intake cover 23. The button, the wiring 310 for the atomizer 31, the wiring 2220 for the blade assembly 22, and the port assembly 423 are all electrically connected to the main circuit board 41. The at least one button includes a first button 421, a second button 422, and a third button 429. The first button 421 is used to control the on / off and / or airflow strength of the blade assembly 22. The second button 422 is used to control the on / off of the atomizer 31. The third button 429 is used to control the on / off and / or illumination intensity of an illumination lamp or decorative lamp 4290 located within the spray fan 10. Furthermore, in some modifications, the third button 429 may be omitted. In addition to controlling the on / off state of the atomizer 31, the second button 422 can also control the on / off state and / or the illumination intensity of the lighting lamp or decorative lamp 4290 provided on the spray fan 10. In other words, the second button 422 can also function as a shared switch for spraying and lighting. For example, a short press of the first operating time (e.g., within 2 seconds) is for spraying control, and a long press of the second operating time (e.g., 3 seconds or more) is for lighting control.

[0118] <Tenth Example> As shown in Figures 57 to 58, the spray fan 10 according to the 10th embodiment of the present application is a tabletop spray fan. In the tabletop spray fan 10 of the 10th embodiment, detailed explanations may be omitted for parts that have basically the same structure as the spray fans 10 of the 1st to 9th embodiments, but the descriptions of the structures that are basically the same as those of the 10th embodiment in the 1st to 9th embodiments also apply to the 10th embodiment. Below, we will mainly explain the key parts of the spray fan 10 of the 10th embodiment, or the differences from the spray fan 10 of the 9th embodiment.

[0119] In the tenth embodiment, the spray fan 10 includes a base 43. The base 43 is rotatably connected to the fan case 21. Furthermore, the base 43 may include a seat 431 and a support member 432. The seat 431 is rotatably connected to the support member 432. This allows the support member 432 to rotate relative to the seat 431 by moving the fan case 21, thereby achieving a left-right oscillating function. In addition, the fan case 21 is also rotatably connected to the support member 432, enabling adjustment of the tilt angle of the fan unit.

[0120] <11th Example> As shown in Figures 56 to 61, the spray fan 10 according to the 11th embodiment of the present application is a stand-type spray fan. In the spray fan 10 of the 11th embodiment, detailed explanations may be omitted for parts that have basically the same structure as the spray fans 10 of the 1st to 9th embodiments, but the descriptions of the structures that are basically the same as those of the 11th embodiment in the 1st to 10th embodiments also apply to the 11th embodiment. Below, we will mainly explain the key parts of the spray fan 10 of the 11th embodiment, or the differences from the spray fan 10 of the 10th embodiment.

[0121] Specifically, in the 11th embodiment, the spray fan 10 is a stand-type fan having at least one flexible and shape-retaining support leg, and includes a stand 60 having at least one flexible and shape-retaining support leg. The stand 60 is used to mount the spray fan 10 to an external object. The spray fan 10 includes a mounting structure provided inside the intake cover 23. The blade assembly 22 is attached to the intake cover 23.

[0122] The stand 60 includes a first connector 13'', a second connector 21'', and at least one flexible and shape-retaining support leg 22'', connected to the second connector 21'', the first connector 13'', is used to connect to the fan case of the fan unit 20. The at least one support leg 22'', is used to position the spray fan 10 on an external object. One of the first connector 13'', the second connector 21'', has a first mounting groove 211'', and the other of the first connector 13'', the second connector 21'', has an elastic connector 131'', the elastic connector 131'', extends into the first mounting groove 211'', and is pressed against the groove wall of the first mounting groove 211'', causing the elastic connector 131'', to contact and be fixed within the first mounting groove 211'', thereby integrally connecting the fan unit 20 and the stand 60.

[0123] The first connector 13'' includes an elastic connector 131''. The elastic connector 131'' is connected to the stand 60.

[0124] The first mounting groove 211'' is an annular groove. The elastic connecting portion 131'' extends into the first mounting groove 211'' and is pressed against the groove wall of the first mounting groove 211'', causing it to elastically deform. As a result, the elastic connecting portion 131'' abuts and is fixed within the first mounting groove 211'', and the fan unit 20 and the stand 60 are integrally connected.

[0125] Compared to conventional technology, the spray fan 10 provided in this application employs a first mounting groove 211'' and an elastic connecting part 131'' in the first connector 13'' within the fan unit 20 and the second connector 21'' of the stand 60, enabling rapid contact and attachment between the two. This makes production and assembly easier and improves production efficiency by assembling both parts separately and then combining the fan unit 20 and the stand 60. Furthermore, because the structure of the elastic connecting part 131'' and the first mounting groove 211'' is simple and robust, the strength and service life of the product are guaranteed, improving the product's competitiveness and the user experience.

[0126] The elastic connector 131'' includes a plurality of spring pieces 1311''. The spring pieces 1311'' are detachably connected to the first mounting groove 211''. Specifically, the spring pieces 1311'' have a certain elasticity and can deform when an external force is applied, then restore or generate a restorative force. When the elastic connector 131'' extends into the first mounting groove 211'', the spring pieces 1311'' contact the groove wall of the first mounting groove 211''. By adopting a connection method between an annular groove and spring pieces 1311'', the structure is simple and the cost is low. When it is necessary to attach the fan unit 20 to the stand 60, it is only necessary to insert the spring pieces 1311'' into the first mounting groove 211''. Furthermore, due to the elasticity of the spring pieces 1311'', they deform when inserted into the first mounting groove 211'' and restore to their original shape and contact the groove wall of the first mounting groove 211'' when the attachment is complete, thus ensuring the stability of the connection. This makes assembly and connection simpler and faster, improving the product's competitiveness.

[0127] Specifically, a projection 132'' is provided on the outer wall of the spring piece 1311''. The projection 132'' is provided at the free end of the spring piece 1311'', that is, at the end of the spring piece 1311'' that is away from the fan unit 20. A stepped portion 212'' is provided on the inner wall of the first mounting groove 211''. The stepped portion 212'' is used to contact the projection and restrict the spring piece 1311'' to be inside the first mounting groove 211''. By providing the projection 132'', not only is the strength of the spring piece 1311'' increased, but in combination with the stepped portion 212'' the spring piece 1311'' can be firmly locked inside the first mounting groove 211'', stabilizing the connection of the product and making it easy to use and practical.

[0128] In this embodiment, the first mounting groove 211'' has an annular side wall and includes a first annular side wall 2111'' and a second annular side wall 2112''. Here, the distance of the first annular side wall 2111'' from the axis of the first mounting groove 211'' is greater than the distance of the second annular side wall 2112'' from the axis of the first mounting groove 211'', thereby forming a stepped portion 212''. When the elastic connecting portion 131'' is attached to the first mounting groove 211'', the projection 132'' abuts against the second annular side wall 2112''.

[0129] In this embodiment, the projection 132'' has an arc-shaped surface, which makes it easier for it to engage with the stepped portion 212'' when it comes into contact with it. As a result, the user can assemble the spring piece 1311'' and the first mounting groove 211'' with only a relatively small amount of force.

[0130] A gap 1312'' is provided between each pair of spring pieces 1311'' to provide space for elastic deformation. This ensures that the spring pieces 1311'' have a certain deformation space when they deform, thus avoiding damage to them. The first connector 13'' further includes a positioning groove 133''. The spring pieces 1311'' are positioned surrounding the positioning groove 133''. A positioning column 213'' is provided within the first mounting groove 211'' for insertion and connection into the positioning groove 133''. In some embodiments, the first connector 13'' is rotatable about an axis relative to the first mounting groove 211''. The gap 1312'' allows the spring pieces 1311'' to be more easily mounted in the first mounting groove 211'' and ensures that the spring pieces 1311'' have deformation space and are not damaged when they are pushed inward. By combining the positioning column 213'' and the positioning groove 133'', positioning and mounting of the spring piece 1311'' when inserting it into the first mounting groove 211'' is made easier, and product damage due to misalignment can be avoided. Since the first connector 13'' can rotate around its axis, angle adjustment of the fan unit 20 becomes convenient, improving the user experience.

[0131] The stand 60 further includes a support leg 22''. The support leg 22'' is provided at one end of the second connector 21'' away from the first connector 13''. The support leg 22'' is rotatably connected to the second connector 21''. By providing the support leg 22'', the product can be more stably supported on the surface of an object or held by a user. The rotatable connection further expands the application scenarios of the support leg 22''.

[0132] Specifically, the support legs 22'' are bendable and deformable, allowing the spray fan 10 to be installed on an external object. For example, by opening the support legs 22'' and placing them on the surface of an external object, bending and deforming the support legs 22'' and then placing them on the surface of an object, or bending and deforming the support legs 22'' and wrapping them around an object, the spray fan 10 can be used in multiple scenarios.

[0133] The number of support legs 22'' is three. Each support leg 22'' is rotatably connected to the second connector 21''. In one of the operating configurations, stable support is achieved by rotating the three support legs 22'' to the same angle and then supporting them on the surface of the object. The support legs 22'' are flexible and support the spray fan 10 by deforming when an external force is applied and maintaining that deformed state (for example, by bending to a certain angle or wrapping around an object). After deformation, they can also be restored to their original state by applying an external force. In other embodiments, the number of support legs 22'' may be one, two, four, or other quantities, and is not specifically limited in this application.

[0134] In this embodiment, the second connector 21'' includes a base plate 214'' and a first side wall 2151'' connected to the base plate 214''. The support leg 22'' is attached to the base plate 214''. The base plate 214'' and the first side wall 2151'' surround the first mounting groove 211''. The spring piece 1311'' abuts and is fixed to the inside of the first side wall 2151''.

[0135] The second connector 21'' further includes a second side wall 2152'' which is connected to the substrate 214'' and located outside the first side wall 2151''. One of the first connector 13'' and the second connector 21'' further includes a plurality of reinforcing plates 2153'' connected between the first side wall 2151'' and the second side wall 2152''. The cross-section of the first side wall 2151'' is circular, and the cross-section of the second side wall 2152'' is also circular. The positioning column 213'' is located at the center of the first side wall 2151''. The first side wall 2151'' and the second side wall 2152'' are provided coaxially. By providing the second side wall 2152'' and the reinforcing plates 2153'', the strength of the component can be ensured and the overall service life of the product can be extended.

[0136] The second connector 21'' further includes a fixing cover 216''. The fixing cover 216'' has at least one opening 2161''. The fixing cover 216'' is fixed to the side of the substrate 214'' away from the fan unit 20. The fixed end 221'' of the support leg 22'' is fixed between the fixing cover 216'' and the substrate 214''. The support portion 222'' of the support leg 22'' extends from the opening 2161'' and is used for mounting to an external object. The fixing cover 216'' and the substrate 214'' are fastened together by a fastener 223''.

[0137] The second connector 21'' further includes a fixing plate 217''. The fixing plate 217'' is located between the substrate 214'' and the fixing cover 216''. The fixing device 223'' passes through the opening 2171'' in the fixing plate 217'' and fastens and fixes the substrate 214'', the fixing plate 217'', and the fixing cover 216'' together as a single unit. A fixing groove 2172'' is provided on the surface of the fixing plate 217'' near the fixing end 221'', which conforms to the shape of at least a part of the fixing end 221''. The fixing end 221'' is positioned within the fixing groove 2172''. The provision of the fixing cover 216'' facilitates the assembly of the support leg 22''. Moreover, since the present invention is connected and fixed by the fixing device 223'', the structure is simple.

[0138] Specifically, the fixed end 221'' includes a spherical portion 2211''. The fixed groove 2172'' includes a spherical groove 2173''. The fixed end 221'' further includes two opposing limiting planes 2212'' and limiting projections 2213'' provided on each of the two limiting planes 2212''. The fixed groove 2172'' includes two opposing contact planes 2174'' and two fitting grooves 2175''. The limiting planes 2212'' contact the contact planes 2174''. The limiting projections 2213'' are located within the fitting grooves 2175''.

[0139] In this embodiment, the substrate 214'' and the first side wall 2151'' are further formed surrounding a second mounting groove 218''. The second mounting groove 218'' is provided facing away from the first mounting groove 211''. The fixing plate 217'' is placed inside the second mounting groove 218''. The inner diameter of the first side wall 2151'' gradually decreases along the direction from the fan unit 20 toward the stand 60. The edge of the fixing cover 216'' is aligned with and connected to the edge of the first side wall 2151'' away from the fan unit 20. The surface of the fixing cover 216'' away from the fan unit 20 is an arc-shaped surface that protrudes toward the side away from the substrate 214''.

[0140] Specifically, the opening 2161'' is a semi-closed opening provided on the edge of the fixed cover 216. The opening 2161'', in combination with the fixed plate 217'', limits the rotation angle of the support leg 22'' so that the support leg 22'' can only rotate within the range of the opening 2161''.

[0141] The fixed end 221'' further includes an engaging portion 2214'' connected to the spherical portion 2211'' and a connecting portion 2215'' connected to the side of the engaging portion 2214'' away from the spherical portion 2211''. The diameter of the engaging portion 2214'' is to fit the dimensions of the opening 2161'' and is smaller than the diameter of the spherical portion 2211''. The support portion 222'' includes a flexible and shape-retaining support body 2221'' and a flexible material portion 2222'' covering the outer circumference of the support body 2221''. The flexible material portion 2222'' has a connecting groove 2223''. The connecting portion 2215'' is fixed within the connecting groove 2223''. The outer surface of the connecting portion 2215'' has a first uneven structure 2216''. The inner surface of the connecting groove 2223'' has a second uneven structure 2224''. The connection between the connecting part 2215'' and the flexible material part 2222'' is achieved by the interlocking of the first protrusion and recess structure 2216'' and the second protrusion and recess structure 2224''. By providing mutually compatible spherical parts 2211'' and spherical grooves 2173'', the support leg 22'' can be rotatably connected to the fixed groove 2172''. Furthermore, the design of the related limiting structure restricts the direction and angle of rotation, preventing the product from being damaged due to excessive rotation angles and facilitating user use. The structural design of the support leg 22'' allows the product to be more stably placed on the surface of an object and to be gripped by the user, further expanding the range of applications.

[0142] Specifically, the support body 2221'' is manufactured from a metal material such as aluminum or iron. The flexible material part 2222'' is manufactured from a material having a certain degree of flexibility or elasticity, such as silicone or rubber. During production, the flexible or elastic material is coated on the outside of the support body 2221'', the flexible material part 2222'' is formed by injection molding, and then it is assembled to the second connector 21''.

[0143] In this embodiment, to facilitate angle adjustment of the fan unit 20, the first connector 13'' is rotatably connected to the fan case 21. The first connector 13'' has a mounting space 13a'' for housing the fan case 21. The elastic connector 131'' is provided on the side away from the mounting space of the first connector 13. Specifically, the first connector 13'' has a U-shaped structure, and the fan case 21 is positioned in the opening. The rotatable connection between the first connector 13'' and the fan case 11'' allows the fan case 21 to rotate, making it easy to adjust the airflow direction and convenient for the user.

[0144] <Example 12> As shown in Figures 62 to 65, the fan according to the 12th embodiment of the present application is a portable fan, specifically a handheld spray fan. In the spray fan 10 of the 12th embodiment, detailed explanations may be omitted for parts that have basically the same structure as the spray fans 10 of the 1st to 11th embodiments, but the descriptions of the structures that are basically the same as those of the 12th embodiment in the 1st to 11th embodiments also apply to the 12th embodiment. Below, we will mainly explain the key parts of the spray fan 10 of the 12th embodiment, or the differences from the spray fan 10 of the 4th embodiment.

[0145] In the twelfth embodiment, the spray fan 10 includes a fan case 21 and a blade assembly 22. The fan case 21 has a housing cavity 21a, an intake port 21b communicating with the housing cavity 21a, and an outlet port 2420 communicating with the housing cavity 21a. The blade assembly 11 is located within the housing cavity 21a and includes a blade assembly 221 and a motor unit 222a. The motor unit 222a includes a motor 222 connected to the blade assembly 221, a circuit board 222b connected to the motor 222, and at least one light-emitting element 222c. The motor 222 is used to drive and rotate the blade assembly 221 to guide the air from the intake port 21b to the outlet port 2420. At least one light-emitting element 222c is provided on the circuit board 222b and is used to emit light toward the intake port 21b and / or the outlet port 2420.

[0146] In this embodiment, the motor 222 is mounted on the circuit board 222b. At least one light-emitting element 222c is also mounted on the circuit board 222b and can emit light toward the air intake 21b and / or outlet 2420. As a result, the spray fan 10 and motor unit 222a have a light-emitting effect, improving the user experience and increasing the competitiveness of the product.

[0147] Specifically, the blade assembly 221 includes a mounting portion 221a and a plurality of blades 221b arranged in an annular pattern around the outer circumference of the mounting portion 221a. The mounting portion 221a is used to mount the motor 222. The circuit board 222b is connected to one side of the motor 222. At least one light-emitting element 222c includes a plurality of light-emitting elements 222c arranged in an annular pattern on the circuit board 222b. The plurality of light-emitting elements 222c provide a good lighting effect or luminous atmosphere effect, improving the user experience.

[0148] In this embodiment, the mounting portion 221a has a mounting cavity 221c, the motor 222 is located within the mounting cavity 221c, and at least one light-emitting element 222c and the motor 222 are provided on the same side of the circuit board 222b. Multiple light-emitting elements 222c are arranged in a ring around the outer circumference of the motor 222. Furthermore, the spray fan 10 includes multiple electronic elements 222d. The multiple electronic elements 222d are resistors, capacitors and / or chips, and are provided on the circuit board 222b and located on the opposite side of the motor 222. As can be seen, the above design makes the layout of the circuit board 222b rational, which is advantageous not only for simplifying the manufacturing process and reducing costs, but also for avoiding electrical interference.

[0149] In this embodiment, at least one light-emitting element 222c includes a light source module (e.g., an LED light source having three RGB sub-light sources) capable of emitting light of multiple different colors. The light source module includes sub-light sources of at least two different colors, which are individually switch-controlled. Each sub-light source is used to emit light of one color. This allows the aforementioned light source module to emit light of multiple different colors. The number of at least one light-emitting element 222c is multiple. Each light-emitting element includes a light source module capable of emitting light of multiple different colors. As can be seen, the light source modules allow the fan to emit different lighting effects (e.g., light of different colors, light with intermittently switching colors, and / or flashing lights) to provide an ideal atmosphere and improve the user experience.

[0150] To make it clear, the blade assembly 22 is an axial flow blade assembly. The intake port 21b, the housing cavity 21a, and the outlet port are arranged on the same line. The aforementioned fan further includes a control unit 41a (e.g., a main circuit board 41, buttons 421 and 422, etc.). The control unit 41a is electrically connected to the circuit board 222b and is used to control the operation of the motor 222b and the illumination of at least one light-emitting element 222c. The specific elements of the control unit (e.g., the main circuit board 41, buttons 421 and 422, etc.) have already been described in the first to eleventh embodiments above and will not be described again here.

[0151] Because the blade assembly 22 is an axial flow blade assembly, and the intake port 21b, storage cavity 21a, and outlet port 2420 are arranged in the same straight line, not only is the airflow effect of the spray fan 10 enhanced, but the light effect can also be observed from both the intake port 21b and the outlet port 2420, resulting in a good luminescence effect of the spray fan 10.

[0152] As shown in Figures 66-72, the equivalent circuit of the spray fan 10 can include a charge management circuit 61, a fan drive circuit 62, a main control circuit 63, an indicator lamp circuit 64, a battery protection circuit 65, a light emission drive circuit 66, and an atomization drive circuit 67. The light emission drive circuit 66 is provided on the circuit board 222b. The charge management circuit 61, fan drive circuit 62, main control circuit 63, indicator lamp circuit 64, battery protection circuit 65, and atomization drive circuit 67 can be provided on the main circuit board 41. The atomization drive circuit 67 includes a boost circuit 671. The boost circuit 671 receives the voltage BAT+ of the battery 424, boosts the voltage BAT+ of the battery 424 to output a drive voltage to the atomizer 31, and is used to drive and operate the atomizer 31. This drive voltage is greater than the battery voltage. Specifically, the voltage BAT+ of battery 424 can be set to 5V, and the drive voltage can be set to approximately 80V, but these can also be set according to actual needs. The light-emitting drive circuit 66 is electrically connected to the light-emitting elements D5 and D6 to drive the light-emitting elements D5 and D6 to emit light. The battery protection circuit 65 may be electrically connected to battery BT1.

[0153] The boost circuit 671 includes an inductor T1, a capacitor C18, and a control switch Q4. The first terminal of inductor T1 is connected to the positive terminal (e.g., BAT+) of battery 424, the second terminal of inductor T1 is grounded via the two conducting terminals of the control switch Q4, the third terminal of inductor T1 is connected to the positive terminal of atomizer 31 via capacitor C18, and the negative terminal of atomizer 31 is connected to the second terminal of inductor T1. The control terminal of the control switch Q4 is connected to the main control circuit 63.

[0154] The foregoing description is merely a preferred embodiment of the present application and does not limit the scope of the patent. Any equivalent structural modifications based on the application concept and utilizing the contents of the specification and drawings of the present application, or any applications directly or indirectly to other related technical fields, are all included within the scope of the patent protection of the present application.

Claims

1. It is a spray fan, A fan unit comprising a fan case and a blade assembly located within the fan case, wherein the fan case comprises an intake cover located on the intake side and an exhaust cover located on the exhaust side, the exhaust cover comprises a misting section and a plurality of exhaust louvers connected to the outer peripheral wall of the misting section in an annular arrangement, the misting section comprises spray holes, and a plurality of outlet holes are formed between the plurality of exhaust louvers in an annular arrangement around the spray holes, A spray unit comprising an atomizer and a water tank, wherein the atomizer is located within the fan case and provided corresponding to the spray holes, the water tank comprises a main casing, at least one water supply line and an atomizing section, the at least one water supply line is provided to connect the main casing and the atomizing section, the atomizing section is provided corresponding to the atomizer, the atomizing section and the atomizer are located between the blade assembly and the exhaust cover, and the blade assembly is a spray unit that causes the intake-side air to pass sequentially over the outer circumference of the atomizing section and the outer circumference of the atomizer into a plurality of outlet holes and blow it out to the outside, The liquid inside the main box is supplied to the atomizer via at least one of the water supply pipelines and the atomizing unit, enabling the atomizer to atomize the liquid and eject the resulting spray from the spray holes. A spray unit characterized in that the airflows discharged from multiple outlets are arranged in an annular pattern around the spray.

2. At least one of the water supply pipelines is located on one side of the outlet, Viewed from the direction of discharge of the discharge hole, at least one of the water supply pipelines overlaps in projection with at least one of the plurality of discharge holes or at least one of the plurality of exhaust louvers. The spray fan further includes at least one windbreak structure, Viewed from the direction of discharge of the aforementioned discharge hole, at least one of the windbreak structures is projected to overlap with or offset from at least one of the water supply pipelines. At least one of the windbreak structures balances the airflow from the multiple outlets that have been disturbed by at least one of the water supply pipelines, so that the airflow from the multiple outlets is uniformly distributed in an annular shape around the spray, and the direction of the spray is basically aligned with the central axis of the spray holes. The main casing is located above the fan case, at least one of the water supply lines is located in the upper half of the fan case along the direction of gravity, and at least one of the windbreak structures includes a first windbreak structure, the first windbreak structure is located in the lower half of the fan case along the direction of gravity. The spray fan according to claim 1, characterized in that, in order to facilitate the flow of the liquid in the main box into the atomizing section via at least one water supply pipeline due to the action of gravity, at least one inner wall of one end of the main box closest to at least one water supply pipeline is higher than or equal to the end of the at least one water supply pipeline connected to the main box along the direction of gravity, and the end of the at least one water supply pipeline connected to the main box is located higher than the end of the at least one water supply pipeline connected to the atomizing section along the direction of gravity.

3. The aforementioned at least one water supply pipeline includes a first water supply pipeline and a second water supply pipeline, The main box includes an arc-shaped structure having a cavity, and the first water supply pipeline is provided so as to connect one end of the main box to the atomizing section. The second water supply pipeline is provided so as to connect the other end of the main box and the atomizing section. Along the direction from the blade assembly toward the exhaust cover, the water tank, which is composed of the main casing, the first water supply pipeline, the second water supply pipeline, and the atomizing unit, is divided into a first part of the case facing the blade assembly and a second part of the case facing the exhaust cover. The case of the first part and the case of the second part are connected together in a sealed manner. The case of the second part includes atomizing holes provided in the atomizing section, The atomizer is located in a mounting groove inside the atomizing unit and ejects the spray through the atomizing hole and the spray hole, or the atomizer is located outside the atomizing unit and provided corresponding to the atomizing hole, atomizes the liquid in the water tank through the atomizing hole to form the spray, and ejects it through the spray hole. The exhaust cover further includes an outer frame connected in an annular manner to the outer circumference of a plurality of exhaust louvers, and a relief opening is provided at a position corresponding to at least one of the water supply pipelines on the outer frame. The spray fan according to claim 1, characterized in that one end of the at least one water supply pipeline connected to the box body is connected so as to fit into the relief port.

4. The water tank further includes a decorative box body, The decorative box is provided below the fan case, The ends of the decorative box are connected to the ends of the main box, thereby forming an annular structure that is provided in an annular shape around the fan case. The number of the at least one inner wall is two, and the two inner walls are located at both ends of the main box body and at both ends of the decorative box body, Each of the aforementioned inner walls is located between the cavity of the main box and the cavity of the decorative box, and is used to separate the cavity of the main box and the cavity of the decorative box. The water tank includes a transparent material, The fan case further includes an air guide casing, The air guide casing is provided between the intake cover and the blade assembly, The spray fan according to claim 1, characterized in that the inner diameter of the air guide casing gradually increases from the intake side to the exhaust side, thereby introducing the air from the intake cover into the blade assembly.

5. The spray unit further includes a water guide piece, The water guide piece is provided on the liquid inlet side of the atomizer and is used to introduce liquid from the atomizing section into the atomizer. The spraying unit further includes at least one fiber liquid guide bar, At least one of the fiber fluid guide bars is provided in at least one of the water supply pipelines, The spray fan according to claim 1, characterized in that the fiber liquid guide bar has one end extending to the main box and the other end extending to the atomizing section, and is used to guide the liquid in the main box to the atomizing section.

6. The water tank further has a water inlet, The spraying unit further includes a sealing plug that is detachably attached to the water inlet, at least a portion of it. The aforementioned sealing plug includes a sealing plug body provided at the water inlet and a connecting member connected to the sealing plug body. One end of the connecting member, away from the sealing plug body, is sandwiched between the fan case and the water tank. The fan case or the water tank has a first fixing part, The end of the connecting member that is away from the sealing plug body has a second fixing portion, The first fixing part and the second fixing part are fixedly connected so that the connecting member is fixed between the fan case and the water tank. The sealing stopper comprises a flexible material, and the flexible material comprises silicone or rubber. The first fixing part is a fixing column, the second fixing part is a fixing hole, and the fixing column is inserted into the fixing hole. The sealing plug body includes a substrate, a connecting portion connected to one side of the substrate, and a sealing end connected to the side of the connecting portion away from the substrate. The outer diameters of the sealed end and the substrate are both larger than the outer diameter of the connection part and the outer diameter of the water inlet. The sealing end is deformable so as to extend into the water tank from the water inlet. The aforementioned connection part is located inside the water inlet, The sealing end and the substrate seal the water inlet by clamping the water tank from the inside and outside, respectively. The sealing plug body further includes an extended portion connected to one side of the substrate, The spray fan according to claim 5, characterized in that the extension portion is used by the user to grasp and remove the sealing plug body from the water inlet.

7. The spray fan further includes a main circuit board, a battery, at least one button provided in at least one buttonhole of the handle case, and a port assembly provided in the charging opening of the handle case. The button, the atomizer's conductor, the blade assembly's conductor, the battery, and the port assembly are each electrically connected to the main circuit board. The main circuit board includes a charge management circuit, a fan drive circuit, a main control circuit, and an atomization drive circuit. The atomization drive circuit includes a boost circuit, The boost circuit receives the battery voltage, boosts the battery voltage, and outputs a drive voltage to the atomizer to drive and operate the atomizer. The aforementioned drive voltage is greater than the voltage of the battery. The boost circuit includes an inductor, a capacitor, and a control switch. The first end of the inductor is connected to the positive terminal of the battery, the second end of the inductor is grounded via the two conductive terminals of the control switch, the third end of the inductor is connected to the positive terminal of the atomizer via the capacitor, and the negative terminal of the atomizer is connected to the second end of the inductor. The spray fan according to claim 1, characterized in that the control terminal of the control switch is connected to the main control circuit.

8. The blade assembly is located inside the fan case and includes a blade assembly and a motor assembly. The motor assembly includes a motor connected to the blade assembly, a circuit board connected to the motor, and at least one light-emitting element. The motor is used to drive and rotate the blade assembly in order to guide the air from the intake port of the intake cover to the outlet port. The spray fan according to claim 1, characterized in that at least one light-emitting element is arranged on the circuit board and used to emit light toward the intake port and / or the outlet port.

9. The spray fan further includes a mounting structure provided inside the intake cover, and the blade assembly is attached to the mounting structure. The spray fan further includes a main circuit board provided in the fan case, at least one button provided in at least one buttonhole of the intake cover, and a port assembly provided in the charging opening of the intake cover. The button, the atomizer's conductor, the blade assembly's conductor, and the port assembly are all electrically connected to the main circuit board. The aforementioned at least one button includes a first button and a second button, The first button is used to control the on / off and / or wind speed of the blade assembly. The spray fan according to claim 1, characterized in that the second button is used to control the on / off state of the atomizer, and also to control the on / off state and / or illumination intensity of the lighting lamp or decorative lamp provided on the spray fan.

10. The aforementioned fan case further includes an inner cover, a mounting section, and a plurality of first blades. The mounting portion is located inside the inner cover and has a gap between it and the inner wall surface of the inner cover. Multiple first blades are connected between the inner cover and the mounting portion and are distributed at intervals along the circumferential direction of the mounting portion. A mounting cavity is formed inside the aforementioned inner cover. The blade assembly includes a hub and a plurality of second blades, The hub is rotatably mounted to the mounting portion and located within the mounting cavity. The inclination direction of the second blade is opposite to the inclination direction of the first blade. The exhaust cover is located on the opposite side of the mounting portion from the hub, The exhaust cover includes an inner frame, an inner cover provided within the inner frame, and a plurality of exhaust louvers connected between the atomizing section and the inner frame. The spray fan according to claim 1, characterized in that the inner frame is abutted against the inner cover.

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