fan

Abstract

The application discloses a fan, which comprises a fan head and a support assembly. The fan head comprises a mesh cover, a fan blade and a heating element. The fan blade is rotatably arranged in the mesh cover. The heating element is arranged in the mesh cover to heat air. The mesh cover has a cover shell part arranged in a ring shape. The cover shell part comprises an air inlet and a shielding part arranged along the circumference. The projection of the air inlet along the radial direction of the cover shell part and upwardly falls at least partially on the shielding part. The fan head is arranged on the support assembly. The application can provide a multifunctional fan with better cold air effect and warm air effect.

Description

Technical Field

[0001] This invention relates to the field of electrical appliance manufacturing technology, and in particular to a fan. Background Technology

[0002] In related technologies, a fan is an electrical appliance that uses a motor to drive the blades to rotate, thereby accelerating air circulation, and is mainly used for cooling and relieving heat. Existing fans have poor performance and usually only have the function of blowing cool air, which is limited. Summary of the Invention

[0003] The main objective of this invention is to provide a fan that is multifunctional and has good cooling and warming effects.

[0004] To achieve the above objectives, the present invention provides a fan, the fan comprising:

[0005] A fan head includes a grille, fan blades, and a heating element. The fan blades are rotatably disposed within the grille. The heating element is disposed within the grille for heating air. The grille has an annularly arranged housing portion, which includes a circumferentially arranged air inlet and a shielding portion. The radial and upward projection of the air inlet onto the shielding portion at least partially falls on the shielding portion.

[0006] A bracket assembly, wherein the fan head is mounted on the bracket assembly.

[0007] In one embodiment, the mesh cover has an air inlet end and an air outlet end, the air inlet and the shielding part are disposed between the air inlet end and the air outlet end, the heating element is disposed between the fan blade and the air inlet end, and at least a portion of the fan blades' projection in the vertical direction falls into the air inlet.

[0008] In one embodiment, the vertical projection of the end of the fan blade near the heating element falls into the air inlet; and / or,

[0009] The projection of the end of the heating element away from the fan blade in the vertical direction falls outside the air inlet.

[0010] In one embodiment, the distance between the heating element and the fan blade in the axial direction of the fan blade is D1, wherein 10mm ≤ D1 ≤ 25mm; and / or,

[0011] The air inlet has a first edge away from the air inlet end, the distance between the end of the fan blade near the heating element and the first edge in the axial direction of the fan blade is D2, and the height of the fan blade along its axial direction is H, wherein 5mm≤D2≤H.

[0012] In one embodiment, the fan further includes a heat insulation element disposed inside the mesh cover and sleeved around the heat-generating element along the axial direction of the fan blades.

[0013] In one embodiment, the distance between the heating element and the heat insulation element in the radial direction of the fan blade is D3, wherein 5mm≤D3≤25mm.

[0014] In one embodiment, the bracket assembly includes a support member and a base, the mesh cover is rotatably disposed on the support member, the support member is rotatably disposed on the base, and the projection of the air inlet in the vertical direction falls on the base and is spaced apart from the support member.

[0015] In one embodiment, the support includes a column segment, a column inclined segment, and a column bracket with an opening. The column inclined segment is connected to the upper end of the column segment and is inclined upward. The column bracket is connected to the column inclined segment. The mesh cover is disposed at the opening and is rotatably connected to the opposite ends of the column bracket.

[0016] In one embodiment, the column segment is arranged vertically, and the angle between the inclined segment of the column and the column segment is α, wherein 105°≤α≤150°; and / or,

[0017] The opening of the column support is facing upwards. On the axial projection plane of the fan blade, the angle between the inclined section of the column and the column support is β, where 60°≤β≤105°.

[0018] In one embodiment, the upper half of the cover portion is closed to form the shielding portion, and the lower half of the cover portion is provided with the air inlet; and / or,

[0019] The mesh cover is rotatably connected to the support assembly.

[0020] In one embodiment, the fan further includes a humidification device disposed outside the mesh cover for generating water mist. The humidification device has a mist outlet that is spaced apart from the fan head and located below the fan head.

[0021] In one embodiment, the humidification device includes:

[0022] The housing has a water storage chamber, an atomizing chamber, and a mist guiding channel, and the water storage chamber, the atomizing chamber, the mist guiding channel, and the mist outlet are connected in sequence.

[0023] An atomizing plate, disposed within the atomizing chamber, is used to atomize the water within the atomizing chamber; and

[0024] A fan is provided in the housing. The fan is used to blow air into the atomizing chamber so that the water mist in the atomizing chamber is guided by the mist guiding channel and discharged from the mist outlet.

[0025] In one embodiment, the water storage chamber is arranged in a ring around the circumference of the mist guiding channel; and / or,

[0026] The mist guiding channel extends vertically, and the mist outlet is located at the top of the housing.

[0027] In one embodiment, at least a portion of the fan blades are projected vertically onto the humidification device, the mist outlet is opened upwards and located on the air outlet side of the heating element along the axial direction of the fan blades, and the air inlet is projected vertically onto the outside of the mist outlet and located between the mist outlet and the air inlet end of the mesh cover.

[0028] In one embodiment, on the axial projection plane of the fan blade, the mist outlet has a second edge near the air inlet end of the mesh cover, and the distance between the second edge and the first edge of the air inlet away from the air inlet end of the mesh cover in the axial direction of the fan blade is D4, wherein D4 ≥ 50 mm.

[0029] The fan of the present invention includes a fan head and a support assembly. The fan head includes a mesh cover, fan blades, and a heating element. The fan blades are rotatably disposed within the mesh cover to achieve the function of blowing cold air. The heating element is disposed within the mesh cover to heat the air, that is, the fan of this application also has a heating function. The mesh cover has a ring-shaped housing portion, which includes an air inlet and a shielding portion arranged circumferentially. The radial and upward projection of the air inlet of the housing portion at least partially falls on the shielding portion. With this arrangement, when the fan is in cold air mode, air can enter not only from the air inlet end of the mesh cover but also from the air inlet at the circumferential direction of the housing portion. The dual air intake at the air inlet end of the mesh cover and the air inlet helps to increase the cooling effect. The fan's intake volume and speed are designed to ensure a good cooling effect. In warm air mode, air entering the mesh is heated. Hot air, being less dense and lighter, rises. Because the circumferentially oriented part of the mesh prevents the hot air from flowing directly upwards, heat loss is avoided. The hot air is forced out through the outlet of the mesh by the rotation of the fan blades, ensuring a good warming effect. Furthermore, the mesh also prevents some cold air from entering the mesh, reducing the amount of cold air mixed in during warm air mode and further enhancing the fan's warming effect. Therefore, the fan of this application, in addition to its cooling function, also has a heating function, and both cooling and heating effects are good, meaning the fan is compatible with both cooling and warming modes. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of a fan according to an embodiment of the present invention;

[0032] Figure 2 for Figure 1 A structural diagram of some of the components;

[0033] Figure 3 for Figure 2 A partial structural decomposition diagram;

[0034] Figure 4 for Figure 2 A sectional view of the structure in the middle;

[0035] Figure 5 for Figure 2 A sectional view of the structure in the middle;

[0036] Figure 6 for Figure 5 A magnified view of a section at point A in the middle;

[0037] Figure 7 for Figure 1 A sectional view of the structure in the middle;

[0038] Figure 8 for Figure 1 A sectional view of part of the structure;

[0039] Figure 9 for Figure 1 A sectional view of the structure in the middle;

[0040] Figure 10 for Figure 9 A magnified view of a section at point B in the middle;

[0041] Figure 11 for Figure 2 A partial structural decomposition diagram;

[0042] Figure 12 for Figure 11 A magnified view of a section at point C;

[0043] Figure 13 for Figure 2 A schematic diagram of the decomposed structure in the diagram;

[0044] Figure 14for Figure 13 A magnified view of a section at point D;

[0045] Figure 15 for Figure 3 A structural diagram of some of the components.

[0046] Explanation of icon numbers:

[0047]

[0048]

[0049] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0051] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0052] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0053] This invention proposes a fan with multiple functions, and also with good cooling and heating effects.

[0054] Please see Figures 1 to 6In one embodiment of the present invention, the fan 10 includes a fan head 100 and a support assembly 200. The fan head 100 includes a mesh cover 110, fan blades 120, and a heating element 130. The fan blades 120 are rotatably disposed within the mesh cover 110. The heating element 130 is disposed within the mesh cover 110 for heating air. The mesh cover 110 has an annularly arranged shell portion 111. The shell portion 111 includes an air inlet 112 and a shielding portion 115 arranged circumferentially. The radial and upward projection of the air inlet 112 along the shell portion 111 at least partially falls on the shielding portion 115. The fan head 100 is disposed on the support assembly 200.

[0055] It is understood that the fan blades 120 and the heating element 130 are located within the airflow channel of the mesh cover 110. The fan 10 has a cold air mode and a warm air mode. In the cold air mode, the heating element 130 is not working, and the fan 10 blows out cold air. In the warm air mode, the heating element 130 works to heat the air flowing along the airflow channel. The heated air is discharged from the air outlet of the mesh cover 110 as the fan blades 120 rotate, so that the fan 10 can blow out warm air. That is, the fan 10 of this application has a heating function. The type and shape of the heating element 130 are not limited here. The heating element 130 can be a heating wire, a heating tube, or other objects capable of generating heat.

[0056] Furthermore, an air inlet 112 is provided on the circumferential sidewall of the cover portion 111. The cover portion 111 includes a shielding portion 115, which is arranged circumferentially with the air inlet 112. The shielding portion 115 can shield the airflow flowing in the radial direction of the cover portion 111 to prevent the airflow from entering and leaving. The radial and upward projection of the air inlet 112 along the cover portion 111 at least partially falls on the shielding portion 115, that is, at least part of the shielding portion 115 is located directly above the air inlet 112. Of course, it is also possible that the air inlet 112 is entirely located directly below the shielding portion 115, which is not limited here.

[0057] In one embodiment, the mesh cover 110 includes a front cover 113 and a rear cover 114, which are detachably connected. In this case, the cover portion 111 is a part of either the front cover 113 or the rear cover 114, that is, the front cover 113 and the cover portion 111 are an integral structure, or the rear cover 114 and the cover portion 111 are an integral structure. In another embodiment, the mesh cover 110 includes a front cover 113, a middle shell, and a rear cover 114, which are detachably connected. The middle shell and the rear cover 114 are detachably connected, and the middle shell includes the cover portion 111. In other words, the specific structure of the mesh cover 110 is not limited, as long as the cover portion 111 is a part of the mesh cover 110. In this embodiment, the mesh cover 110 includes a front cover 113, a middle shell, and a rear cover 114. The side of the front cover 113 facing away from the rear cover 114 is the air outlet, and the side of the rear cover 114 facing away from the front cover 113 is the air inlet. The middle shell is disposed between the front cover 113 and the rear cover 114. The middle shell includes a cover portion 111. The upper half of the middle shell is closed, and the lower half of the middle shell is provided with an air inlet 112. The air inlet 112 includes multiple air inlet holes, which are arranged sequentially on the side wall of the lower half of the middle shell to form the air inlet 112.

[0058] The fan 10 of the present invention includes a fan head 100 and a support assembly 200. The fan head 100 includes a mesh cover 110, fan blades 120, and a heating element 130. The fan blades 120 are rotatably disposed within the mesh cover 110 to achieve the function of blowing cold air. The heating element 130 is disposed within the mesh cover 110 to heat the air, that is, the fan 10 of this application also has a heating function. The mesh cover 110 has a ring-shaped housing portion 111, which includes a circumferentially arranged air inlet 112 and a shielding portion 115. The radial and upward projection of the air inlet 112 along the housing portion 111 at least partially falls on the shielding portion 115. With this arrangement, when the fan 10 is in cold air mode, air can enter not only from the air inlet end of the mesh cover 110, but also from the air inlet 112 in the circumferential direction of the housing portion 111. The dual air intakes at the air inlet and air outlet 112 increase the volume and speed of the cold air intake, thus ensuring a better cooling effect for the fan 10. When the fan 10 is in warm air mode, the air entering the mesh cover 110 is heated. Hot air has a lower density and is lighter, so it rises. Since the cover 111 has a circumferential shielding part 115, the shielding part 115 can block the hot air, preventing the hot air inside the mesh cover 110 from directly passing through the cover 111 and flowing upwards, thus avoiding heat loss. The hot air can only be blown out from the air outlet of the mesh cover 110 as the fan blades 120 rotate, which helps to ensure the warm air effect. In addition, the shielding part can also block some cold air from entering the mesh cover 110, thus reducing the amount of cold air mixed in during the warm air mode, further improving the warm air effect of the fan 10. Therefore, it can be seen that in addition to blowing cold air, the fan 10 of this application also has the function of heating, and the fan 10 has good cold air effect and warm air effect, that is, the fan 10 of this application can be well compatible with cold air mode and warm air mode.

[0059] In one embodiment, the upper half of the cover portion 111 is closed to form the shielding portion 115, and the lower half of the cover portion 111 is provided with the air inlet 112. It is understood that when the fan 10 is in cold air mode, air can enter not only from the air inlet end of the mesh cover 110, but also from the air inlet 112 in the lower half of the cover portion 111. The dual air intake at both the air inlet end of the mesh cover 110 and the air inlet 112 helps to increase the volume of cold air intake and ensure the airflow speed, thus giving the fan 10 a better cooling effect. When the fan 10 is in warm air mode, the air is heated after entering the mesh cover 110. Hot air has a lower density and is lighter, causing it to rise. The upper half of the housing 111 is enclosed, preventing hot air inside the mesh cover 110 from flowing upwards directly through the upper half of the housing 111, thus avoiding heat loss. The hot air can only be blown out from the air outlet of the mesh cover 110 as the fan blades 120 rotate, which helps to ensure the effect of warm air. In addition, the upper half of the housing 111 can also block some cold air from entering the mesh cover 110, thereby reducing the amount of cold air mixed in during the warm air mode, further improving the warm air effect of the fan 10.

[0060] In one embodiment, the mesh cover 110 is rotatably connected to the support assembly 200. This configuration allows the mesh cover 110 to drive the entire fan head 100 to rotate, thus achieving the oscillation effect of the fan head 100. The rotation of the mesh cover 110 can be either up-and-down or left-and-right; that is, the fan head 100 can rotate up-and-down and / or left-and-right.

[0061] Please see Figures 2 to 5 In one embodiment, the mesh cover 110 has an air inlet end and an air outlet end, the air inlet 112 and the shielding part 115 are disposed between the air inlet end and the air outlet end, the heating element 130 is disposed between the fan blade 120 and the air inlet end, and at least a portion of the projection of the fan blade 120 in the vertical direction falls into the air inlet 112.

[0062] It is understandable that the heating element 130 is located on the air inlet side of the fan blade 120. That is to say, when the fan blade 120 rotates, cold air is drawn in from the air inlet end of the mesh cover 110, heated by the heating element 130 and turned into hot air, and then blown out from the air outlet end of the mesh cover 110 as the fan blade 120 rotates. The hot air is dispersed by the rotation of the fan blade 120, and the blown hot air is uniform, which helps to improve the user's comfort.

[0063] Furthermore, the air inlet 112 and the shield 115 are located between the air inlet and the air outlet. In the cooling mode, in addition to the air inlet of the mesh cover 110, the cooling air can also be drawn in through the air inlet 112. This can supplement the intake volume of the cooling air and ensure the output volume of the cooling air, thereby giving the fan 10 a better cooling effect. Moreover, in the heating mode, the cooling air mainly enters from the air inlet. The air entering from the air inlet is heated by the heating element 130 and then discharged. In the heating mode, the speed of the fan blade 120 is reduced, and less air enters through the air inlet 112. In addition, the shield 115 can also block the airflow, further reducing the entry of cold air from the side of the mesh cover 110. That is, it reduces the amount of cold air mixed in with the warm air, so that there is less cold air in the warm air blown out from the air outlet of the mesh cover 110, and the fan 10 has a better warm air effect.

[0064] Furthermore, at least a portion of the fan blades 120 are projected vertically into the air inlet 112, so that the air entering from the air inlet 112 is directly dispersed by the rotating fan blades 120, thereby reducing the wind resistance of this air and reducing the noise generated by the reversal of this air. Therefore, this solution, by setting at least a portion of the fan blades 120 to have their downward projection fall into the air inlet 112, helps to increase the air intake while reducing the noise generated by the fan 10, thus improving the applicability of the fan 10.

[0065] In one embodiment, the vertical projection of the end of the fan blade 120 near the heating element 130 falls into the air inlet 112. This arrangement ensures that all the air entering from the air inlet 112 is dispersed by the rotating fan blade 120 before being blown out from the air outlet of the mesh cover 110, further reducing the wind resistance of the air entering from the air inlet 112 and reducing the noise generated by this air reversal.

[0066] In one embodiment, the vertical projection of the end of the heating element 130 away from the fan blade 120 falls outside the air inlet 112. This arrangement prevents air entering from the air inlet 112 from blowing directly onto the heating element 130 and generating noise.

[0067] Please see Figure 4To ensure a good heating effect for the fan 10, in one embodiment, the distance between the heating element 130 and the fan blade 120 in the axial direction of the fan blade 120 is D1, where 10mm ≤ D1 ≤ 25mm. It is understood that when the distance between the heating element 130 and the fan blade 120 is too close, the high temperature generated by the heating element 130 will cause the fan blade 120 to deform; when the distance between the heating element 130 and the fan blade 120 is too far, it will affect the heating effect of the fan 10. This solution limits the distance between the heating element 130 and the fan blade 120 in the axial direction of the fan blade 120 to ensure a good heating effect for the fan 10. D1 can be 10mm, 12mm, 15mm, 18mm, 20mm, 22mm, or 25mm, etc., and is not specifically limited here.

[0068] Please see Figure 4 In order to reduce the noise of the fan 10, in one embodiment, the air inlet 112 has a first edge away from the air inlet end, the distance between the end of the fan blade 120 near the heating element 130 and the first edge in the axial direction of the fan blade 120 is D2, and the height of the fan blade 120 along its axial direction is H, wherein 5mm≤D2≤H.

[0069] Understandably, by limiting the size of D2, it can be ensured that the downward projection of some or all of the fan blades 120 falls into the air inlet 112. As mentioned above, the air entering through the air inlet 112 along the radial direction of the fan blades 120 can be dispersed by the rotating fan blades 120 and then blown out from the air outlet of the mesh cover 110. This reduces the wind resistance of the air entering from the air inlet 112, thereby reducing the noise generated by this air reversal. D2 can be 5mm, 8mm, 10mm, or 15mm, etc., and can be set according to the height H of the fan blades 120 along their axial direction. It is not limited here.

[0070] Please see Figures 3 to 6 In one embodiment, the fan 10 further includes a heat insulation element 300, which is disposed inside the mesh cover 110 and sleeved on the outside of the heat-generating element 130 along the axial direction of the fan blade 120.

[0071] It is understandable that the heat insulation component 300 can be arranged in a ring shape. The heat insulation component 300 is used to insulate against heat generated, preventing heat from the heating element 130 from being transferred to the mesh cover 110. Especially when the fan blade 120 stops rotating due to a malfunction, or when the fan blade 120 speed decreases and the fan 10 malfunctions, if the heat insulation component 300 is not installed, the heat from the heating element 130 will be transferred to the mesh cover 110 or objects outside the mesh cover 110, potentially causing fires or other safety accidents. This solution, by sleeved with the heat insulation component 300 along the axial direction of the fan blade 120 around the heating element 130, improves the safety performance of the fan 10. In this embodiment, the centerline of the heat insulation component 300 coincides with the rotation axis of the fan blade 120, which helps improve the consistency of the fan 10.

[0072] In addition, the heat insulation component 300 also has the function of concentrating heat. When the heating element 130 heats the air, the heat generated by the heating element 130 is concentrated within the heat insulation component 300 to prevent the heat from dissipating arbitrarily. The rotation of the fan blades 120 carries away the concentrated heat, which helps to improve the heating effect of the fan 10. Furthermore, by setting the heat insulation component 300, the heat on the mesh cover 110 is lower, which allows the mesh cover 110 to be made of a material with lower heat resistance than the heat insulation component 300. Since the material usage of the mesh cover 110 is greater than that of the heat insulation component 300, using a material with lower heat resistance in the mesh cover 110 helps to reduce the manufacturing cost of the fan 10.

[0073] Please see Figure 4 In one embodiment, the distance between the heating element 130 and the heat insulation element 300 in the radial direction of the fan blade 120 is D3, where 5mm ≤ D3 ≤ 25mm. It is understood that when the distance between the heating element 130 and the heat insulation element 300 is too close, the heat insulation element 300 will affect the smoothness of airflow; when the distance between the heating element 130 and the fan blade 120 is too far, it will affect the heat insulation and heat concentration effect of the fan 10. This solution limits the distance between the heating element 130 and the heat insulation element 300 in the radial direction of the fan blade 120, allowing air to flow smoothly within the heat insulation element 300 and achieving a better heat insulation effect. D3 can be 5mm, 10mm, 12mm, 15mm, 18mm, 20mm, 22mm, or 25mm, etc., and is not specifically limited here.

[0074] Please see Figure 1 , Figure 7 and Figure 9 In one embodiment, the bracket assembly 200 includes a support member 210 and a base 220. The mesh cover 110 is rotatably disposed on the support member 210, and the support member 210 is rotatably disposed on the base 220. The projection of the air inlet 112 in the vertical direction falls on the base 220 and is spaced apart from the support member 210.

[0075] It is understood that the mesh cover 110 is rotatably mounted on the support member 210, and the rotation axis of the mesh cover 110 can be set in the horizontal direction, thus allowing the fan head 100 to oscillate up and down. In one embodiment, the fan 10 further includes an up-and-down oscillation drive mechanism, which is connected to the mesh cover 110 and the bracket assembly 200 respectively, to drive the mesh cover 110 to rotate relative to the bracket assembly 200. It is understood that the specific structure of the up-and-down oscillation drive mechanism is not limited here. In one embodiment, the up-and-down oscillation drive mechanism includes a horizontal rotating shaft, a first drive motor, a first drive gear, and a first transmission gear. The first drive gear is sleeved on the power output shaft of the first drive motor, and the first drive gear meshes with the first transmission gear. The first transmission gear is set in the vertical direction. The first drive motor is installed inside the bracket assembly 200. The horizontal rotating shaft is fixedly connected to the first transmission gear. The horizontal rotating shaft is mounted on the mesh cover 110 through a bearing. The mesh cover 110 is rotatably connected to the bracket assembly 200 through the horizontal rotating shaft. This configuration realizes the up-and-down oscillation function of the fan 10.

[0076] Furthermore, the support member 210 is rotatably mounted on the base 220, and the rotation axis of the support member 210 is arranged in the vertical direction. This arrangement allows the fan head 100 to oscillate left and right. In one embodiment, the fan 10 further includes a left-right oscillation drive mechanism, which is connected to the base 220 and the support member 210 respectively to drive the support member 210 to rotate relative to the base 220. The structure of the left-right oscillation drive mechanism is not limited. In one embodiment, the left-right oscillation drive mechanism includes a vertical rotating shaft, a second drive motor, a second drive gear, and a second transmission gear. The second drive motor is installed inside the base 220, and the second drive gear is sleeved on the power output shaft of the second drive motor. The second drive gear and the second transmission gear mesh, and the second transmission gear is arranged in the horizontal direction. The vertical rotating shaft is fixedly connected to the second transmission gear, and the vertical rotating shaft is mounted inside the support member 210 through a bearing. The support member 210 is rotatably connected to the base 220 through the vertical rotating shaft. This arrangement realizes the function of the fan 10 oscillating left and right.

[0077] In addition, the projection of the air inlet 112 in the vertical direction falls on the base 220 and is spaced apart from the support member 210. This ensures that when air enters the mesh cover 110 from the air inlet 112 in the lower half of the mesh cover 110, the support member 210 will not obstruct the air, which is conducive to the smooth entry of air from the air inlet 112 into the mesh cover 110.

[0078] In one embodiment, the support member 210 includes a column segment 211, a column inclined segment 212, and a column bracket 213 with an opening. The column inclined segment 212 is connected to the upper end of the column segment 211 and is inclined upward. The column bracket 213 is connected to the column inclined segment 212. The mesh cover 110 is disposed at the opening and is rotatably connected to the opposite ends of the column bracket 213.

[0079] It is understandable that the column tilting section 212 tilts upwards, that is, there is an angle between the column rod section 211 and the column tilting section 212. By setting this angle, the column support 213 can also be tilted, thereby adjusting the position of the mesh cover 110 so that the downward projection of the air inlet 112 of the lower half of the mesh cover 110 falls on the base 220 and is spaced apart from the support member 210. This improves the smoothness of air entering the mesh cover 110 along the air inlet 112.

[0080] Furthermore, the column support 213 is U-shaped, and the mesh cover 110 is rotatably mounted on the U-shaped column support 213. The rotation axis of the mesh cover 110 is set in the horizontal direction and passes through the column support 213, so that the mesh cover 110 can be tilted up and down relative to the column support 213.

[0081] Please see Figure 7 In one embodiment, the column segment 211 is arranged vertically, and the angle between the column inclined segment 212 and the column segment 211 is α, wherein 105°≤α≤150°; and / or, the opening of the column support 213 is arranged upward, and on the axial projection plane of the fan blade 120, the angle between the column inclined segment 212 and the column support 213 is β, wherein 60°≤β≤105°.

[0082] It is understandable that the included angle between the inclined section 212 of the column and the column rod section 211 can be 105°, 110°, 120°, 130°, 140°, or 150°, etc., and the specific angle is not limited here. By limiting the size of α, it is ensured that the inclined section 212 of the column can tilt upward, which is conducive to the downward projection of the air inlet 112 of the lower half of the mesh cover 110 onto the base 220 and spaced apart from the support member 210.

[0083] On the axial projection plane of the fan blade 120, the included angle between the inclined column section 212 and the column support 213 can be 60°, 70°, 80°, 90°, 100°, or 105°, etc., and is not specifically limited here. By limiting the size of β, the tilt angle of the column support 213 relative to the column rod section 211 is limited, which also limits the position of the fan head 100 relative to the column rod section 211. The lower half of the cover part 111 is provided with an air inlet 112. The downward projection of the air inlet 112 falls on the base 220, so that air can smoothly enter the mesh cover 110 along the air inlet 112. At this time, the column rod section 211, the inclined column section 212 and the column support 213 cooperate to reduce the air resistance, that is, reduce the wind resistance of air entering the mesh cover 110 through the column assembly, thereby helping to increase the air intake volume into the mesh cover 110. Therefore, this solution is beneficial for increasing the air intake of fan 10.

[0084] Please see Figures 7 to 9 In one embodiment, the fan 10 further includes a humidifying device 400, which is disposed outside the mesh cover 110 to generate water mist. The humidifying device 400 has a mist outlet 410, which is spaced apart from the fan head 100 and located below the fan head 100.

[0085] Understandably, the humidifier 400 is used to generate water mist, which is discharged outward through the mist outlet 410. The opening direction of the mist outlet 410 can be set upward, or it can be set directly in front of the fan 10 or diagonally in front, so that the water mist can diffuse with the air flow and thus humidify the air.

[0086] Furthermore, the mist outlet 410 is located below the fan head 100 and spaced apart from the mesh cover 110. The fan blades 120 of the fan 10 rotate to drive the airflow around the fan head 100. The airflow causes the water mist to flow and diffuse outward along the airflow direction of the fan 10, thus realizing the function of humidifying the air by the fan 10. It can be seen that no mist guide pipe is provided between the mist outlet 410 and the fan head 100 in this solution, avoiding the condensation and backflow of water mist in the mist guide pipe. The humidification device 400 and the fan head 100 have simple structures, and the structure between the two is concise, making the fan 10 aesthetically pleasing.

[0087] Please see Figures 7 to 9In one embodiment, the humidification device 400 includes a housing, an atomizing plate 450, and a fan 460. The housing forms a water storage chamber 420, an atomizing chamber 430, and a mist guiding channel 440, which are sequentially connected. The atomizing plate 450 is disposed in the atomizing chamber 430 to atomize the water in the atomizing chamber 430. The fan 460 is disposed in the housing and is used to blow air into the atomizing chamber 430 so that the water mist in the atomizing chamber 430 is guided by the mist guiding channel 440 and discharged from the mist outlet 410.

[0088] It is understandable that the atomizing plate 450 can be an ultrasonic atomizing plate. The atomizing plate 450 is electrically connected to the controller of the fan 10. The atomizing plate 450 uses the high-frequency electronic oscillation of the ultrasonic principle to break down the liquid water molecule structure to form water mist, thus ensuring the humidification amount. At the same time, the atomizing plate 450 can be replaced in the atomizing chamber 430, which makes the structure of the humidification device 400 simple and easy to manufacture.

[0089] Furthermore, the user can add water to the water storage chamber 420, and the water will flow into the atomizing chamber 430 so that the atomizing plate 450 can atomize the water into water mist. The fan 10 can be provided with an air inlet on the bracket assembly 200 or the housing, and the fan 460 can be located at the air inlet. The number of fans 460 can be set as needed, and there is no limitation on the number.

[0090] Specifically, the controller of fan 10 controls the operation of atomizing plate 450 and also controls the operation of fan 460 to blow air into atomizing chamber 430. Water in water storage chamber 420 flows into atomizing chamber 430 for atomization by atomizing plate 450. A mist passage is formed on the housing, connecting atomizing chamber 430 and mist guiding channel 440. When air humidification is required, the controller controls fan 460 to rotate, blowing air into atomizing chamber 430. Under the action of airflow, water mist in atomizing chamber 430 enters mist guiding channel 440 through mist passage. Mist guiding channel 440 guides airflow and water mist, discharging water mist from mist outlet 410. The discharged water mist humidifies the air. In this embodiment, the air inlet can be located at the bottom of the fan 10 or on the side wall of the housing, and the mist outlet 410 can be located at the top of the housing. This ensures that all the water mist in the atomization chamber 430 can be discharged from the mist outlet 410 under the action of the fan 460. The mist guiding channel 440 is hidden inside the housing. Compared with the prior art that uses a guide pipe to guide the water mist to the air outlet side of the mesh cover 110, the length of the mist guiding channel 440 in this solution is shorter. This avoids the situation in the prior art where the guide pipe is too long, and some water mist will condense and flow back along the pipe wall, affecting the humidification efficiency. This solution is beneficial to improving the humidification effect. Furthermore, the mist guiding channel 440 improves the smoothness of water mist flow. Under the pressure of the fan 460, the water mist is sprayed outward at a faster speed, which is beneficial to improving the uniformity of the humidified air.

[0091] In one embodiment, a mist-passing port is formed on the housing, connecting the atomizing chamber 430 and the mist-guiding channel 440. The mist-passing port is oriented towards the side wall of the housing. Specifically, in this embodiment, the side wall of the housing is horizontal, meaning the mist-passing port is oriented horizontally. This arrangement connects the atomizing chamber 430 and the mist-guiding channel 440, preventing the airflow from the mist-passing port from blowing directly upwards. When the airflow containing water droplets passes through the mist-passing port and enters the mist-guiding channel 440, the water droplets collide with the side wall of the mist-guiding channel 440 under the action of the airflow and flow back into the atomizing chamber 430. This prevents water droplets from being blown directly out of the mist outlet 410, thereby ensuring the humidification effect of the water mist.

[0092] In one embodiment, the plane where the highest point of the air inlet is located is lower than the plane where the mist outlet 410 is located, which can further ensure that all the water mist in the atomizing chamber 430 can be discharged from the mist outlet 410.

[0093] In one embodiment, the water storage cavity 420 is arranged in a ring around the circumference of the mist guiding channel 440; and / or, the mist guiding channel 440 extends in the vertical direction, and the mist outlet 410 is located at the top of the housing. Understandably, the water storage chamber 420 is arranged around the periphery of the mist guiding channel 440. This makes full use of the internal space of the shell, resulting in a compact arrangement of the mist guiding channel 440 and the water storage chamber 420. The mist guiding channel 440 extends vertically, and the mist outlet 410 is located at the top of the shell. This arrangement reduces the resistance to the flow of water mist within the mist guiding channel 440, allowing the water mist to flow smoothly toward the mist outlet 410, thereby improving the smoothness of the water mist flow. At the same time, the mist guiding channel 440 is also hidden inside the shell. Compared to the prior art where a guide pipe is used to guide the water mist to the air outlet side of the mesh cover 110, the length of the mist guiding channel 440 in this solution is shorter. This avoids the situation in the prior art where the guide pipe is too long, causing some water mist to condense and flow back along the pipe wall, affecting the humidification efficiency. This solution is beneficial for improving the humidification effect.

[0094] Please see Figure 9 In one embodiment, at least a portion of the fan blades 120 are projected onto the humidification device 400 in the vertical direction, the mist outlet 410 is opened upward and located on the air outlet side of the heating element 130 along the axial direction of the fan blades 120, and the air inlet 112 is projected onto the outside of the mist outlet 410 and located between the mist outlet 410 and the air inlet end of the mesh cover 110.

[0095] With this configuration, the fan blade 120 is positioned directly above the humidifier 400. Along the axial direction of the fan blade 120, the mist outlet 410 is located downstream of the heating element 130, and the air inlet 112 is located between the mist outlet 410 and the air inlet end of the mesh cover 110. When the mist outlet 410 sprays water mist outward, the water mist will flow upward and forward with the air outlet end of the mesh cover 110. The water mist will not enter the mesh cover 110 along the air inlet 112 and cause the heating element 130 to fail. This avoids the influence of water mist on the heating element 130 and improves the service life of the fan 10.

[0096] Please see Figure 9 To prevent water mist from entering the mesh cover 110 and causing the heating element 130 to fail, in one embodiment, on the axial projection surface of the fan blade 120, the mist outlet 410 has a second edge close to the air inlet end of the mesh cover 110. The distance between the second edge and the first edge of the air inlet 112 away from the air inlet end of the mesh cover 110 in the axial direction of the fan blade 120 is D4, where D4 ≥ 50 mm.

[0097] It is understood that, along the axial direction of the fan blade 120, the second edge of the mist outlet 410 is located downstream of the first edge of the air inlet 112, and the distance between the second edge and the first edge is D4. By limiting D4 to not less than 50mm, it is ensured that when the water mist is sprayed upward, it will flow towards the air outlet of the mesh cover 110, and the water mist will not enter the mesh cover 110 and affect the heating element 130. Among them, D4 can be 50mm, 55mm, 60mm, or 70mm, etc., and is not specifically limited here.

[0098] Please see Figure 11 and Figure 12 In one embodiment, the fan 10 further includes a plasma ion generator 600 disposed within the mesh cover 110 for generating plasma ions within the mesh cover 110.

[0099] Understandably, the ion generator 600 is used to produce clean ions, which are positive and negative ion clusters. The combination of positive and negative ions surrounds and decomposes harmful substances such as airborne mold and viruses. Upon attaching to the surface of airborne bacteria, the ions in the ion cluster generate OH- (hydroxyl) free radicals, the most potent oxidizing agents, which extract H+ (hydrogen ions) from the bacteria's proteins, rendering them inactive and causing their death. The H2O generated by the combination of OH- and H+ is then returned to the air as water molecules, achieving air purification. Furthermore, clean ions can inhibit the growth and reproduction of attached mold, further eliminating odors and unpleasant smells. In addition, the ion generator 600 can be mounted on the mesh cover 110, or it can be fixed using a mounting bracket; the specific location is not limited, as long as the clean ions generated by the ion generator 600 can flow with the air within the airflow channel.

[0100] Therefore, it can be seen that the ion generator 600 in this solution can generate ions, which are discharged into the room with the air in the airflow channel of the mesh cover 110 to sterilize the indoor air and inhibit the growth of bacteria in the air, thus removing odors. In other words, the fan 10 in this solution also has the function of sterilizing and removing odors from the air, and the fan 10 of this application has high practicality.

[0101] In one embodiment, the fan 10 further includes a heat insulation component 300, which is disposed inside the mesh cover 110 and sleeved on the outside of the heating element 130 along the axial direction of the fan blade 120; the ion generator 600 is disposed on the mesh cover 110 and / or the heat insulation component 300, and the ion generator 600 is spaced apart from the heating element 130.

[0102] It is understood that the heat insulation component 300 can be arranged in a ring shape. The heat insulation component 300 is used to insulate the heat of the heating element 130 to prevent the heat of the heating element 130 from being transferred to the mesh cover 110. In one embodiment, the fan 10 also includes a drive component 500, which is mounted on the heat insulation component 300. The drive component 500 can be a drive motor, that is, the drive motor is mounted on the heat insulation component 300. This makes the internal structure of the mesh cover 110 compact, the utilization rate of the heat insulation component 300 high, and eliminates the need for additional fasteners. This is beneficial for the miniaturization of the fan 10 and the reduction of material usage, thereby reducing the production cost of the fan 10.

[0103] Furthermore, the ion generator 600 can be mounted on the mesh cover 110 or on the heat insulation component 300. Alternatively, it can be partially mounted on the mesh cover 110 and partially on the heat insulation component 300; the specific configuration can be determined as needed and is not limited here. When the ion generator 600 is mounted on the heat insulation component 300, the structural arrangement of the heat insulation component 300 and the ion generator 600 is compact, resulting in high utilization of the heat insulation component 300. The ion generator 600 and the heating element 130 are spaced apart to prevent the heat generated by the heating element 130 from damaging or burning the ion generator 600, thus extending the service life of the ion generator 600.

[0104] In one embodiment, the heat insulation member 300 and the mesh cover 110 enclose a cavity, and the ion generator 600 is disposed in the cavity. The ion generator 600 includes an ion emission head 610, which extends out of the cavity toward the heating member 130.

[0105] Understandably, the ion generator 600 is housed within the cavity formed by the heat insulation component 300 and the mesh cover 110. The cavity not only serves to house the ion generator 600 but also to shield it. This allows the heat insulation component 300 to protect the ion generator 600 and prevents it from being fully exposed within the mesh cover 110, thereby improving the aesthetics of the fan 10.

[0106] Furthermore, the ion emitter 610 has an ion emission port 611, which extends out of the housing cavity towards the heating element 130 and is spaced apart from the heating element 130. This facilitates the emission of ions generated by the ion emitter 610 to the outside of the housing cavity. In other words, the ions generated by the ion emitter 610 can be directly emitted into the airflow channel and flow into the room with the air, so as to realize the function of sterilizing and removing odors from the indoor air.

[0107] Please see Figure 11 and Figure 12In one embodiment, the ion generator 600 further includes a generator body 620 connected to the ion emitter 610. The generator body 620 is disposed in the accommodating cavity. The mesh cover 110 and / or the heat insulation member 300 are provided with mounting holes communicating with the accommodating cavity, and the ion emitter 610 passes through the mounting holes.

[0108] It is understood that the generator body 620 is electrically connected to the controller of the fan 10, and the controller supplies power to the generator body 620 to ionize and generate net ions. The generated net ions are emitted through the net ion emitter 610. The mounting hole is provided on the mesh cover 110; or, the mounting hole is provided on the heat insulation component 300; or, the mesh cover 110 and the heat insulation component 300 enclose each other to form a mounting hole, and the heating element 130 is spaced apart from the mounting hole. The net ion emitter 610 passes through the mounting hole, and the end of the net ion emitter 610 near the heating element 130 is provided with a net ion emission port 611. The net ion emission port 611 is located between the mounting hole and the heating element 130. With this arrangement, when the heating element 130 is working, the net ions emitted from the net ion emission port 611 can also be heated, thereby improving the sterilization effect of the net ions.

[0109] Please see Figure 11 In one embodiment, the heat insulation component 300 includes a heat insulation ring 310 and a cover 320. The heat insulation ring 310 is sleeved on the heating component 130. The ion generator 600 is disposed on the mesh cover 110. The cover 320 is disposed on the outer peripheral wall of the heat insulation ring 310 and covers the ion generator 600. The cover 320 and the mesh cover 110 enclose each other to form the mounting hole.

[0110] Understandably, the mesh cover 110 can be provided with mounting positions, where both the generator body 620 and the ion emitter 610 can be placed. The cover 320 covers the generator body 620 and the ion emitter 610 to fix and protect them. Furthermore, the mounting hole is formed by the cover 320 and the mesh cover 110, facilitating the insertion of the ion emitter 610 into the mounting hole, and the ion emission port 611 of the ion emitter 610 can easily protrude out of the mounting hole. Therefore, this design allows the ion generator 600 to be stably installed inside the mesh cover 110, and avoids the heat generated by the heating element 130 from burning out the ion generator 600, thereby improving the reliability of the fan 10.

[0111] In one embodiment, the ion emitter 610 has an ion emission port 611, which is spaced apart from the heating element 130. The ion emission port 611 is located radially between the inner peripheral wall of the heat insulation ring 310 and the heating element 130.

[0112] It is understandable that the opening direction of the ion emission port 611 can be set towards the heating element 130, which is located in the airflow channel of the mesh cover 110. This allows the ions emitted from the ion emission port 611 to be smoothly discharged into the room along the airflow channel. Furthermore, the ion emission port 611 is located radially along the heat insulation ring 310 between the inner peripheral wall of the heat insulation ring 310 and the heating element 130. The annular structure of the heat insulation ring 310 forms an airflow channel, that is, the ion emission port 611 is located on the outer peripheral side of the heating element 130 and is located in the airflow channel of the heat insulation ring 310. This makes full use of the internal space of the heat insulation ring 310, resulting in high utilization of the internal space of the heat insulation ring 310 and improving the smoothness of the flow of ions in the airflow channel.

[0113] Please see Figure 6 , Figure 13 and Figure 14 In one embodiment, the fan 10 further includes a filter 700, which is detachably disposed on and located outside the mesh cover 110 for filtering the air drawn in and / or blown out by the fan blades 120.

[0114] It is understood that the filter element 700 is disposed outside the mesh cover 110 and detachably connected to the mesh cover 110. The detachable connection can be achieved in various ways, such as, but not limited to, snap-fit ​​connection, screw connection, or adhesive bonding, depending on the specific requirements. The filter element 700 may include a filter screen 710 for filtering air. Furthermore, the filter element 700 can be disposed on the air inlet side of the mesh cover 110 to filter the intake air; it can also be disposed on the air outlet side of the mesh cover 110 to filter the exhaust air; of course, the filter element 700 can be disposed on both the air inlet and outlet sides of the mesh cover 110 to achieve dual filtration and improve the filtration effect. Therefore, the fan 10 of this application also has the function of purifying air.

[0115] Please see Figure 13 In one embodiment, the mesh cover 110 has an air inlet side, and the fan 10 further includes a drive member 500, which is drivenly connected to the fan blade 120. The drive member 500 is disposed inside the mesh cover 110 and extends outward toward the air inlet side to the outside of the mesh cover 110.

[0116] Understandably, the drive unit 500 includes a drive motor connected to the fan blade 120 to drive the fan blade 120 to rotate. The mesh cover 110 has an air inlet end and an air outlet end. When the fan blade 120 rotates, air is drawn in from the air inlet end of the mesh cover 110, passes through the airflow channel of the mesh cover 110, and is discharged from the air outlet end of the mesh cover 110.

[0117] Furthermore, the drive component 500 is located inside the mesh cover 110, occupying a certain space within the mesh cover 110. In this design, the drive component 500 extends outward from the air intake side of the mesh cover 110, reducing the space occupied by the drive component 500 inside the mesh cover 110 and utilizing the space outside the mesh cover 110. This improves the space utilization rate inside and outside the mesh cover 110, facilitates the miniaturization of the mesh cover 110, and also helps the drive component 500 dissipate heat.

[0118] In one embodiment, the filter element 700 is located on the air inlet side, and the filter element 700 is provided with a clearance portion for avoiding the drive element 500. It is understood that the filter element 700 is disposed outside the mesh cover 110 and located on the air inlet side of the mesh cover 110. The end of the drive element 500 facing the air inlet side extends out of the mesh cover 110. To avoid interference between the filter element 700 disposed on the mesh cover 110 and the protruding part of the drive element 500, the filter element 700 is provided with a clearance portion. The clearance portion can be perforated, grooved, or other shapes, and is not limited here. By providing the clearance portion, the drive element 500 can smoothly extend out of the mesh cover 110, and the arrangement structure of the filter element 700 and the drive element 500 outside the mesh cover 110 is compact, resulting in better overall integrity of the fan 10.

[0119] In one embodiment, the filter element 700 includes a filter screen 710, the filter screen 710 having a clearance hole 711, the filter screen 710 being disposed outside the mesh cover 110 and located on the air inlet side, and the drive member 500 being disposed outside the mesh cover 110 being disposed inside the clearance hole 711.

[0120] It is understood that the material of the filter screen 710 can be various, such as polyester screen, fiber screen, or nylon screen, etc., and there is no specific limitation here. The clearance hole 711 can be set in the middle of the filter screen 710 or any other position. In this embodiment, the center line of the clearance hole 711 coincides with the center line of the filter screen 710. The filter screen 710 is sleeved on the drive member 500 located outside the mesh cover 110 through the clearance hole 711. In this way, the space on the air inlet side of the mesh cover 110 is fully utilized. The filter screen 710 and the drive member 500 do not interfere with each other, and their structures are arranged compactly. The overall space utilization of the fan 10 is high, which is conducive to the miniaturization of the fan 10 and the reduction of material usage, thereby helping to reduce production costs.

[0121] In one embodiment, the filter element 700 further includes a filter cover 720, which is disposed outside the mesh cover 110 and covers the filter mesh 710; the filter cover 720 is provided with air passage holes and clearance grooves, the filter mesh 710 is disposed corresponding to the air passage holes, and the end of the drive element 500 located outside the mesh cover 110 is disposed in the clearance groove.

[0122] It is understandable that the filter cover 720 is provided with air passage holes, which are correspondingly set with the filter screen 710. When the fan blade 120 rotates, the air drawn in by the fan blade 120 passes through the air passage holes and the filter screen 710 in sequence and enters the mesh cover 110. After flowing along the airflow channel of the mesh cover 110, it is discharged from the air outlet side of the mesh cover 110. The air passage holes are used to allow air to pass through.

[0123] Furthermore, the filter cover 720 is also provided with a relief groove for accommodating the end of the drive component 500 that protrudes outside the mesh cover 110. By providing the relief groove, the end of the drive component 500 is covered inside the filter cover 720, and the filter cover 720 can protect the drive component 500, which helps to improve the safety of the fan 10.

[0124] In one embodiment, the filter cover 720 has a groove on the side facing the mesh cover 110, and a limiting part is provided at the opening of the groove. The limiting part and the bottom of the groove are spaced apart to form a limiting groove. The filter mesh 710 is disposed in the limiting groove, and the clearance groove is disposed at the bottom of the limiting groove.

[0125] It is understood that the limiting part can be a limiting block or a limiting ring, and there is no specific limitation here. In this embodiment, the limiting part includes multiple limiting blocks. The multiple limiting blocks are arranged sequentially and at intervals around the circumference of the filter cover 720 on the groove sidewall of the groove to form a limiting groove with the groove. The filter element 700 is disposed in the limiting groove. The limiting blocks limit the filter screen 710 to prevent the filter screen 710 from falling out of the limiting groove, so that the filter screen 710 can be stably installed in the filter cover 720, and the filter screen 710 is easy to install and replace in the filter cover 720.

[0126] In one embodiment, the filter cover 720 is detachably connected to the mesh cover 110. It is understood that there are various ways to achieve this detachable connection, such as a snap-fit ​​connection or a connection via a connector. In this embodiment, the mesh cover 110 has a groove on its outer surface facing the air inlet side, and the filter element 700 is disposed within the groove. This arrangement facilitates the installation of the filter element 700.

[0127] In one embodiment, one of the filter cover 720 and the mesh cover 110 is provided with a buckle, and the other is provided with a slot, the buckle engaging with the slot. It is understood that the buckle can be a rotary buckle, and the slot is adapted to the rotary buckle. When installing the filter cover 720, rotating the filter cover 720 will cause the rotary buckle to engage in the slot. In this embodiment, the outer peripheral wall of the filter cover 720 is provided with a rotary buckle, and the side wall of the groove is provided with a slot, thus facilitating the installation of the filter cover 720 into the groove of the mesh cover 110.

[0128] In one embodiment, the filter cover 720 is provided with a first screw hole, and the mesh cover 110 is provided with a second screw hole. The filter cover 720 and the mesh cover 110 are fixed together by screws passing through the first screw hole and the second screw hole in sequence, thus ensuring the stability of the filter cover 720 installed on the mesh cover 110.

[0129] Please see Figure 13 and Figure 14 In one embodiment, the filter cover 720 is further provided with a first heat dissipation hole 721, and the drive member 500 is provided with a second heat dissipation hole 510, wherein the first heat dissipation hole 721 and the second heat dissipation hole 510 are connected.

[0130] Understandably, the first heat dissipation hole 721 is located outside the mesh cover 110. The drive unit 500 includes a housing, and the drive motor is located inside the housing. The housing is provided with a second heat dissipation hole 510 that communicates with the first heat dissipation hole 721. Air outside the filter cover 720 can pass through the first heat dissipation hole 721 and the second heat dissipation hole 510 to enter the housing to dissipate heat from the drive motor. Of course, the housing is also provided with a third heat dissipation hole to allow air to be discharged outside the housing. This can improve the heat dissipation effect of the drive motor and improve the stability of the fan 10 operation.

[0131] In addition, the third heat dissipation hole is located inside the mesh cover 110. That is to say, the air that the drive motor dissipates heat will be discharged into the mesh cover 110. When the heating element 130 of the fan 10 is working, the hot air blown out by the drive motor dissipates heat and the air heated by the heating element 130 are combined and blown out from the exhaust side of the mesh cover 110, which helps to improve the heating effect of the fan 10.

[0132] Please see Figure 9 and Figure 10 In one embodiment, the fan 10 further includes a support member 210, a base 220, and a water receiving member 900. The base 220 has a receiving cavity 221. The support member 210 is rotatably disposed on the base 220. The rotation axis of the support member 210 is arranged in the vertical direction. There is a rotation gap 222 between the support member 210 and the base 220. The rotation gap 222 communicates with the receiving cavity 221. The water receiving member 900 is disposed in the receiving cavity 221 to receive water flowing into the rotation gap 222.

[0133] It is understood that the specific structure of the water receiving component 900 is not limited. The water receiving component 900 can be partially inserted into the rotation gap 222, or it can be located below the rotation gap 222, as long as it can collect the water flowing into the rotation gap 222. The water in the water receiving component 900 can be collected through a water storage component, or it can be discharged to the outside of the base 220 through a drainage channel. Specific details are not limited here, and will be discussed later. By setting up the water receiving component 900, water is prevented from flowing into the base 220 from the rotation gap 222 and coming into contact with the electrical control components inside the base 220, thereby preventing short circuits in the electrical control components.

[0134] Please see Figure 10 In one embodiment, the base 220 includes a top cover 223, the top cover 223 is provided with a first mounting hole 224 communicating with the accommodating cavity 221, the support member 210 is rotatably disposed at the first mounting hole 224, the water receiving member 900 is provided with a first water receiving groove 910, and the downward projection of the edge of the first mounting hole 224 falls into the first water receiving groove 910.

[0135] It is understood that the support member 210 can be connected to the base 220 via a left-right oscillation drive mechanism. That is, the fan 10 also includes a left-right oscillation drive mechanism, which is located at the first mounting hole 224 and is driven by the support member 210. The support member 210 can be entirely located outside the first mounting hole 224, or it can be inserted into the first mounting hole 224. There are no specific limitations here, as long as the support member 210 can rotate relative to the base 220. The first water receiving tank 910 can be set in a recessed trough shape or in an annular groove 214 shape; there are no specific limitations here. The edge of the first mounting hole 224 is the edge of the opening of the first mounting hole 224. The projection of the edge of the first mounting hole 224 in the vertical direction falls into the first water receiving tank 910. That is, water flowing into the rotation gap 222 along the edge of the first mounting hole 224 can fall downwards into the first water receiving tank 910, thereby achieving the function of collecting water.

[0136] Please see Figure 10 In one embodiment, the edge of the first mounting hole 224 is provided with an outwardly extending first water-blocking platform 225, which is arranged in a ring shape. It is understood that when water is splashed onto the base 220, if the height of the water droplets or flow does not exceed the height of the first water-blocking platform 225, the water cannot flow into the rotation gap 222. That is, the first water-blocking platform 225 can block some water from flowing into the rotation gap 222, thus improving the safety of the fan 10.

[0137] In one embodiment, a second water-retaining platform 226 extending inward is provided at the edge of the first mounting hole 224. The second water-retaining platform 226 is arranged in a ring shape, and its downward projection falls into the first water receiving groove 910. This arrangement allows the second water-retaining platform 226 to guide the water flowing into the first water receiving groove 910 along the wall of the first mounting hole 224, ensuring that all water flowing along the inner wall of the first mounting hole 224 flows into the first water receiving groove 910. Simultaneously, the height difference between the bottom end of the second water-retaining platform 226 and the inner wall of the upper cover 223 prevents water from flowing along the edge of the first mounting hole 224 across the inner wall of the upper cover 223 and contacting the electrical control components in the accommodating cavity 221, thus improving the safety of the fan 10. In one embodiment, the bottom end of the second water-retaining platform 226 is located within the first water receiving groove 910, which further enhances the guiding effect of the second water-retaining platform 226.

[0138] In one embodiment, the water receiving component 900 is provided with a second mounting hole 920. The lower end of the support component 210 passes through the first mounting hole 224 and the second mounting hole 920 and is rotatably connected to the base 220. The first water receiving groove 910 is arranged in a ring around the second mounting hole 920. This arrangement, where the lower end of the support component 210 passes through the water receiving component 900 and is located within the receiving cavity 221, and the position where the support component 210 is driven to connect with the base 220 is relatively low, facilitates the installation of the left and right oscillation drive mechanism and also improves the stability of the support component 210 rotating on the base 220. The second mounting hole 920 avoids the support component 210, allowing it to pass through; the first water receiving groove 910 is arranged in a ring around the second mounting hole 920, so that the first water receiving groove 910 can receive water flowing into the rotation gap 222 from all directions.

[0139] Please see Figure 10In one embodiment, an annular groove 214 is provided on the outer peripheral wall of the lower end of the support member 210. The hole wall of the first mounting hole 224 and the hole wall of the second mounting hole 920 are disposed in the annular groove 214. The hole diameter of the first mounting hole 224 is larger than the hole diameter of the second mounting hole 920. With this configuration, the downward projection of the lower outer peripheral wall of the support member 210 falls outside the first mounting hole 224, thus preventing some water from falling into the rotation gap 222. Furthermore, the wall of the second mounting hole 920 is located within the annular groove 214, with the groove opening of the annular groove 214 facing outward in the horizontal direction. This creates a meandering structure between the rotation gap 222 and the support member 210, making it difficult for water spilled on the base 220 to flow into the rotation gap 222. Moreover, the diameter of the first mounting hole 224 is larger than that of the second mounting hole 920, causing water flowing into the rotation gap 222 to flow into the first water receiving groove 910. This ensures that the water receiving member 900 can collect the water flowing into the rotation gap 222, giving the fan 10 of this application a high level of safety.

[0140] In one embodiment, the water receiving component 900 is further provided with a drainage channel, and the bottom end of the base 220 is provided with a drain outlet. The drainage channel connects the first water receiving tank 910 and the drain outlet. It is understood that the water in the first water receiving tank 910 can be stored by a water storage component, or it can be discharged outside the base 220. This solution adopts the method of draining the water out of the base 220. The drain outlet can be located on the bottom wall of the lower cover of the base 220, or it can be located on the side wall of the lower cover; the specific location is not limited here. By providing a drainage channel on the water receiving component 900, the collected water can be discharged from the base 220 in a timely manner, which helps to improve the safety of the fan 10.

[0141] Please see Figure 10 In one embodiment, the fan 10 further includes a mounting bracket 930, on which a second water inlet 940 is provided. The bottom end of the support member 210 is located in the second water inlet 940 and is rotatably connected to the mounting bracket 930. The second water inlet 940 is connected to the drainage channel.

[0142] Understandably, by setting up the second water receiving tank 940, water not collected by the first water receiving tank 910 can be further collected, ensuring that all water flowing into the rotation gap 222 is collected, thus improving the safety of the fan 10. The second water receiving tank 940 is located below the first water receiving tank 910. A positioning part is provided within the second water receiving tank 940, and a rotating bearing is provided on the positioning part. The bottom end of the support member 210 is fitted onto the rotating bearing, allowing the support member 210 to be rotatably connected to the mounting bracket 930. The second water receiving tank 940 is connected to the drainage channel, allowing the water collected in the second water receiving tank 940 to be discharged from the base 220 in a timely manner, thus improving the safety of the fan 10.

[0143] In one embodiment, a flow guiding area is formed on the outer surface of the upper cover 223. The flow guiding area is inclined downward from its center toward the periphery, and the first mounting hole 224 is located near the center of the flow guiding area. This configuration, where the outer surface of the upper cover 223 is higher in the middle and lower at the edges, and the first mounting hole 224 is located near the center of the outer surface of the upper cover 223, ensures that water spilled on the outer surface of the upper cover 223 flows towards the edges, preventing water from accumulating in the center and flowing into the rotation gap 222. This helps reduce the amount of water flowing into the base 220.

[0144] Please see Figure 3 and Figure 15 In one embodiment, the fan 10 further includes a plurality of overheat protectors 800, which are disposed inside the mesh cover 110 and electrically connected to the heating element 130 respectively, for overheat protection of the heating element 130. The plurality of overheat protectors 800 are arranged sequentially along the extension direction of the airflow channel of the mesh cover 110, and at least one of the overheat protectors 800 is disposed on the air outlet side of the heating element 130.

[0145] Understandably, multiple overheat protectors 800 are electrically connected to the heating element 130, and each of the multiple overheat protectors 800 provides overheat protection for the heating element 130. The multiple overheat protectors 800 correspond to various abnormal operating states of the heating wire. The multiple overheat protectors 800 are arranged sequentially along the extension direction of the airflow channel of the mesh cover 110. For example, one overheat protector 800 is located on the periphery of the heating element 130, one overheat protector 800 is located on the air outlet side of the heating element 130, or one overheat protector 800 is located on the air inlet side of the heating element 130. The specific configuration can be determined according to the needs.

[0146] If one of the overheat protectors 800 fails to detect a rapid increase in the temperature of the heating element 130 in time, another overheat protector 800 among the multiple overheat protectors 800 arranged sequentially along the extension direction of the airflow channel can detect the rapid increase in the temperature of the heating element 130 in time. In other words, the multiple overheat protectors 800 arranged sequentially along the extension direction of the airflow channel can correspond to different temperature rise states of the heating element 130, thereby being able to detect the overheating of the heating element 130 in time and thus provide overheat protection to ensure the safety of the fan 10.

[0147] It should be noted that one of the overheat protectors 800 is located on the air outlet side of the heating element 130. The air outlet side is the downstream side of the heating element 130 when air passes through it. When the fan 10 tilts and the fan blades 120 cannot rotate normally, the heating element 130 continues to work, and heat accumulates on the heating element 130. The overheat protector 800 located on the air outlet side of the heating element 130 can quickly sense the rapid rise in the temperature of the heating element 130. When the temperature exceeds the preset protection value of the overheat protector 800, the overheat protector 800 will cut off the power to the heating element 130 to prevent fires, electric shocks, and other situations caused by overheating of the heating element 130, thereby ensuring the safety of the fan 10.

[0148] In addition, the overheat protector 800 includes a temperature limiter and / or a fuse. The temperature limiter is used to automatically cut off the power when the temperature is too high, and the temperature limiter is a resettable temperature controller. The fuse is used to melt its own fusible element when the temperature is too high. When the overheat protector 800 includes a temperature limiter and a fuse, the heating element 130, the temperature limiter, and the fuse are connected in series. The melting temperature of the fuse is higher than the cutting-off temperature of the temperature limiter. In this case, the fuse provides double protection for the heating element 130, thereby improving the safety of the fan 10.

[0149] Therefore, multiple overheat protectors 800 are installed within the airflow channel and electrically connected to the heating element 130, respectively, to provide overheat protection for the heating element 130. When the heating element 130 is in an abnormal overheating state, the multiple overheat protectors 800 arranged sequentially along the extension direction of the airflow channel, as well as at least one overheat protector 800 on the air outlet side of the heating element 130, can promptly sense the rise in the temperature of the heating element 130 and disconnect the circuit. This prevents the heating element 130 from overheating and causing fires or electric shocks in situations such as the fan 10 tipping over or the fan blades 120 stopping. In other words, the fan 10 of this solution can prevent fires and electric shocks caused by overheating of the heating element 130, thus improving the safety of the fan 10. Therefore, in addition to its air blowing function, the fan 10 of this solution has high safety performance.

[0150] Please see Figure 15 In one embodiment, the plurality of overheat protectors 800 include a first overheat protector 810 and a second overheat protector 820, wherein the first overheat protector 810 is disposed on the periphery of the heating element 130 and the second overheat protector 820 is disposed on the air outlet side of the heating element 130.

[0151] It is understandable that the mesh cover 110 has a corresponding air inlet and outlet, and the fan 10 has a front and a rear. When the air outlet of the mesh cover 110 faces the front of the fan 10, that is, on the projected surface of the heating element 130, if the fan blade 120 stops rotating or rotates slowly due to a malfunction, the heating element 130 will heat up rapidly. The heat generated by the heating element 130 will flow upward, and the first overheat protection device located around the heating element 130 can promptly and sensitively sense the temperature rise of the heating element 130, thereby quickly cutting off the power to the heating element 130. In this way, the first overheat protector 810 can protect the heating element 130 from overheating. The first overheat protector 810 is located around the upper half of the heating element 130, which further improves the sensing sensitivity of the first overheat protection device.

[0152] Furthermore, when the fan 10 tilts, the air outlet of the mesh cover 110 faces upward or downward at an angle, i.e., the air outlet of the mesh cover 110 is at an upward or downward angle. The heating element 130 is also tilted. The second overheat protector 820 is located on the air outlet side of the heating element 130. When the fan blade 120 stops rotating or rotates slowly due to a malfunction, the heating element 130 heats up rapidly. The heat generated by the heating element 130 will flow upward. At this time, the second overheat protector 820 is closer to the heating element 130, and the hot airflow will pass through the second overheat protector 820. In this way, the second overheat protection can promptly and sensitively sense the temperature rise of the heating element 130, thereby quickly cutting off the power to the heating element 130. Therefore, when the fan 10 tilts, the second overheat protector 820 is located on the air outlet side of the heat-generating element 130 and can promptly and sensitively protect the heat-generating element 130 from overheating. This solution, through the cooperation of the first overheat protector 810 and the second overheat protector 820, ensures the safety of the fan 10 in use.

[0153] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A fan, characterized in that, include: A fan head includes a mesh cover, fan blades, and a heating element. The fan blades are rotatably disposed within the mesh cover. The heating element is disposed within the mesh cover for heating air. The mesh cover has an annularly arranged shell portion, which includes a circumferentially arranged air inlet and a shielding portion. The radial and upward projection of the air inlet along the shell portion at least partially falls on the shielding portion. as well as A bracket assembly, wherein the fan head is mounted on the bracket assembly; The mesh cover has opposing air inlet and air outlet ends. The air inlet and the shielding part are located between the air inlet and the air outlet ends. The heating element is located between the fan blade and the air inlet end. At least a portion of the fan blade's projection in the vertical direction falls into the air inlet. The air inlet has a first edge away from the air inlet end. The distance between the end of the fan blade near the heating element and the first edge in the axial direction of the fan blade is D2. The height of the fan blade along its axial direction is H, where 5mm≤D2≤H. The projection of the end of the heating element away from the fan blade in the vertical direction falls outside the air inlet.

2. The fan as described in claim 1, characterized in that, The vertical projection of the end of the fan blade closest to the heating element falls into the air inlet.

3. The fan as described in claim 2, characterized in that, The distance between the heating element and the fan blade in the axial direction of the fan blade is D1, wherein 10mm≤D1≤25mm.

4. The fan as described in claim 1, characterized in that, The fan also includes a heat insulation component, which is disposed inside the mesh cover and sleeved around the heat-generating component along the axial direction of the fan blades.

5. The fan as described in claim 4, characterized in that, The distance between the heating element and the heat insulation element in the radial direction of the fan blade is D3, where 5mm≤D3≤25mm.

6. The fan as described in claim 1, characterized in that, The bracket assembly includes a support member and a base. The mesh cover is rotatably mounted on the support member, and the support member is rotatably mounted on the base. The projection of the air inlet in the vertical direction falls on the base and is spaced apart from the support member.

7. The fan as described in claim 6, characterized in that, The support includes a column segment, a column tilting segment, and a column bracket with an opening. The column tilting segment is connected to the upper end of the column segment and tilts upward. The column bracket is connected to the column tilting segment. The mesh cover is located at the opening and is rotatably connected to the opposite ends of the column bracket.

8. The fan as described in claim 7, characterized in that, The column segment is arranged vertically, and the angle between the inclined segment of the column and the column segment is α, wherein 105°≤α≤150°; and / or, The opening of the column support is facing upwards. On the axial projection plane of the fan blade, the angle between the inclined section of the column and the column support is β, where 60°≤β≤105°.

9. The fan as claimed in claim 1, characterized in that, The upper half of the cover portion is closed to form the shielding portion, and the lower half of the cover portion is provided with the air inlet; and / or, The mesh cover is rotatably connected to the support assembly.

10. The fan as described in any one of claims 1 to 9, characterized in that, The fan also includes a humidification device located outside the mesh cover to generate water mist. The humidification device has a mist outlet, which is spaced apart from the fan head and located below the fan head.

11. The fan as claimed in claim 10, characterized in that, The humidification device includes: The housing has a water storage chamber, an atomizing chamber, and a mist guiding channel, wherein the water storage chamber, the atomizing chamber, the mist guiding channel, and the mist outlet are connected in sequence. An atomizing plate, disposed within the atomizing chamber, is used to atomize the water within the atomizing chamber; and A fan is provided in the housing. The fan is used to blow air into the atomizing chamber so that the water mist in the atomizing chamber is guided by the mist guiding channel and discharged from the mist outlet.

12. The fan as claimed in claim 11, characterized in that, The water storage chamber is arranged in a ring around the circumference of the mist guiding channel; and / or, The mist guiding channel extends vertically, and the mist outlet is located at the top of the housing.

13. The fan as claimed in claim 10, characterized in that, At least a portion of the fan blades are projected onto the humidification device in the vertical direction. The mist outlet is opened upward and located on the air outlet side of the heating element along the axial direction of the fan blades. The air inlet is projected onto the outside of the mist outlet in the vertical direction and is located between the mist outlet and the air inlet end of the mesh cover.

14. The fan as claimed in claim 13, characterized in that, On the axial projection plane of the fan blade, the mist outlet has a second edge near the air inlet end of the mesh cover, and the distance between the second edge and the first edge of the air inlet away from the air inlet end of the mesh cover in the axial direction of the fan blade is D4, wherein D4≥50mm.

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