Fan

Abstract

The invention discloses a fan which comprises a fan head and a support assembly, the fan head comprises a mesh enclosure, fan blades and a heating piece, and the fan blades are rotatably arranged in the mesh enclosure; the heating element is arranged in the mesh enclosure and is used for heating air; the mesh enclosure is provided with an annular enclosure part, the enclosure part comprises an air inlet and a shielding part which are arranged in the circumferential direction, and at least part of the upward projection of the air inlet in the radial direction of the enclosure part falls on the shielding part; the fan head is arranged on the support assembly. The fan is multifunctional and has a good cold air effect and a good warm air effect.

Description

Technical Field

[0001] The invention relates to the technical field of electrical appliance manufacturing, and in particular to a fan. Background Art

[0002] In the related art, a fan is an electrical appliance that uses a motor to drive the blades to rotate to accelerate the circulation of air, and is mainly used to cool down and relieve summer heat. Existing fans have poor performance and usually only have the function of blowing cold air, which is a single function. Summary of the invention

[0003] The main purpose of the present invention is to provide a fan, aiming to provide a multifunctional fan with good cooling and heating effects.

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

[0005] A fan head, comprising a mesh cover, a fan blade and a heating element, wherein the fan blade is rotatably arranged in the mesh cover; the heating element is arranged in the mesh cover for heating air; the mesh cover has a cover shell portion arranged in an annular shape, the cover shell portion comprises an air inlet and a shielding portion arranged along a circumferential direction, and the air inlet is projected upward along the radial direction of the cover shell portion at least partially falling on the shielding portion; and

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

[0007] In one embodiment, the mesh cover has a relative air inlet end and an air outlet end, the air inlet and the shielding portion are arranged between the air inlet end and the air outlet end, the heating element is arranged between the fan blades and the air inlet end, and at least part of the projection of the fan blades in the up and down directions falls into the air inlet.

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

[0009] The projection of one end of the heating element away from the fan blade in the up-down 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 10 mm ≤ D1 ≤ 25 mm; and / or,

[0011] The air inlet has a first edge away from the air inlet end, the distance between one end of the fan blade close to 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 comprises a heat insulating member, wherein the heat insulating member is disposed in the mesh cover and sleeved outside the heat generating member along the axial direction of the fan blade.

[0013] In one embodiment, a distance between the heat generating element and the heat insulating element in a 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 up and down directions falls on the base and is spaced apart from the support member.

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

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

[0017] The opening of the column bracket is arranged upward, and on the axial projection plane of the fan blade, the angle between the column inclined section and the column bracket is β, wherein 60°≤β≤105°.

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

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

[0020] In one embodiment, the fan further includes a humidifying device, which is disposed outside the mesh cover to generate water mist. The humidifying device has a mist outlet, and the mist outlet is spaced apart from the fan head and located below the fan head.

[0021] In one embodiment, the humidifying device comprises:

[0022] A shell, wherein the shell is formed with a water storage chamber, an atomization chamber and a mist guide channel, and the water storage chamber, the atomization chamber, the mist guide channel and the mist outlet are connected in sequence;

[0023] an atomizing sheet, disposed in the atomizing chamber, for atomizing the water in the atomizing chamber; and

[0024] A fan is arranged on the housing, and is used to supply air into the atomizing chamber so that the water mist in the atomizing chamber is guided through the mist guiding channel and then discharged from the mist outlet.

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

[0026] The mist guide channel is extended in the up-down direction, and the mist outlet is arranged at the top of the shell.

[0027] In one embodiment, at least a portion of the projection of the fan blade in the up-down direction falls on the humidifying device, the mist outlet is opened upward and is located on the air outlet side of the heating element along the axial direction of the fan blade, and the projection of the air inlet in the up-down direction falls outside the mist outlet and is located between the mist outlet and the air inlet end of the mesh cover.

[0028] In one embodiment, on the axial projection surface of the fan blade, the mist outlet has a second edge close to 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 comprises a fan head and a bracket assembly, the fan head comprises a mesh cover, fan blades and a heating element, the fan blades are rotatably arranged in the mesh cover to realize the function of blowing cold air; the heating element is arranged in the mesh cover to heat the air, that is, the fan of the present application also has the function of heating; the mesh cover has a cover shell portion arranged in an annular shape, the cover shell portion comprises an air inlet and a shielding portion arranged along the circumferential direction, the air inlet is projected radially and upwardly along the cover shell portion at least partially falls on the shielding portion, and when the fan is in the cold air mode, air can be sucked in not only from the air inlet end of the mesh cover, but also from the air inlet at the circumferential direction of the cover shell portion. The air inlet at the two places of the air inlet end and the air inlet of the mesh cover is conducive to increasing the cooling The air intake volume of the wind and the wind speed of the cold wind are ensured, so that the fan has a better cold wind effect; when the fan is in the warm air mode, the air enters the mesh cover and is heated, the hot air has a small density, is light in weight and rises upward, and since a shielding part is provided at the circumference of the cover part, the shielding part can shield the hot air, so that the hot air in the mesh cover cannot directly pass through the shielding part and flow upward, avoiding the loss of heat, and the hot air can only be blown out from the air outlet end of the mesh cover with the rotation of the fan blades, which is conducive to ensuring the effect of warm air; and the shielding part can also block part of the cold air from entering the mesh cover, thus reducing the cold air mixed in the warm air mode, and further making the fan have a better warm air effect. It can be seen that the fan of the present application has a heating function in addition to the function of blowing cold air, and the cold air effect and warm air effect of the fan are good, that is, the fan of the present application can be better compatible with the cold air mode and the warm air mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

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

[0032] Figure 2 for Figure 1 A structural diagram of some structures in;

[0033] Figure 3 for Figure 2 Schematic diagram of the partial structure of the decomposition;

[0034] Figure 4 for Figure 2 A cross-sectional view of the structure in FIG.

[0035] Figure 5 for Figure 2 A cross-sectional view of the structure in FIG.

[0036] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0037] Figure 7 for Figure 1 A cross-sectional view of the structure in FIG.

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

[0039] Fig. 9 for Figure 1 A cross-sectional view of the structure in FIG.

[0040] Fig.10 for Fig. 9 A partial enlarged view of point B in the middle;

[0041] Fig.11 for Figure 2 Schematic diagram of the partial structure of the decomposition;

[0042] Fig.12 for Fig.11 A partial enlarged view of point C in the middle;

[0043] Fig.13 for Figure 2 Schematic diagram of the structure in the decomposition;

[0044] Fig.14for Fig.13 A partial enlarged view of point D in the middle;

[0045] Fig.15 for Figure 3 Schematic diagram of the structure of part of the structure.

[0046] Description of Figure Numbers:

[0047]

[0048]

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

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work 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 position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0052] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0053] The invention provides a fan which has multiple functions and also has better cooling and warming effects.

[0054] See also Figures 1 to 6In one embodiment of the present invention, the fan 10 includes a fan head 100 and a bracket 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 in the mesh cover 110; the heating element 130 is disposed in the mesh cover 110 for heating air; the mesh cover 110 has a cover portion 111 arranged in an annular shape, the cover portion 111 includes an air inlet 112 and a shielding portion 115 arranged along the circumferential direction, the air inlet 112 is projected upward along the radial direction of the cover portion 111 and at least partially falls on the shielding portion 115; the fan head 100 is disposed on the bracket assembly 200.

[0055] It is understandable that the fan blades 120 and the heating element 130 are arranged in the air flow channel of the mesh cover 110, and the fan 10 has a cold air mode and a warm air mode. In the cold air mode, the heating element 130 does not work, 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 air flow channel, and the heated air is discharged from the air outlet end 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 the present application has a heating function. The type and shape of the heating element 130 are not limited here, and the heating element 130 can be a heating wire, or a heating tube, or other objects that can generate heat.

[0056] Furthermore, an air inlet 112 is provided on the circumferential side wall of the housing portion 111, and the housing portion 111 includes a shielding portion 115. The shielding portion 115 and the air inlet 112 are arranged along the circumference of the housing portion 111, and the shielding portion 115 can shield the airflow flowing along the radial direction of the housing portion 111 to prevent the airflow from entering and flowing out. The projection of the air inlet 112 along the radial direction of the housing portion 111 and facing upward 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 completely located directly below the shielding portion 115, and there is no specific limitation here.

[0057] In one embodiment, the mesh cover 110 includes a front cover 113 and a rear cover 114, and the front cover 113 and the rear cover 114 are detachably connected. In this case, the cover shell 111 is a part of the front cover 113 or the rear cover 114, that is, the front cover 113 and the cover shell 111 are an integral structure, or the rear cover 114 and the cover shell 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, and the front cover 113 and the middle shell are detachably connected, and the middle shell and the rear cover 114 are detachably connected, and the middle shell includes the cover shell 111. In other words, the specific structure of the mesh cover 110 is not limited, and the cover shell 111 only needs to be 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 an air outlet end, and the side of the rear cover 114 facing away from the front cover 113 is an air inlet end. The middle shell is arranged between the front cover 113 and the rear cover 114. The middle shell includes a cover shell 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 a plurality of air inlet holes, and the plurality of air inlet holes are arranged in sequence on the side wall of the lower half of the middle shell, thereby forming the air inlet 112.

[0058] The fan 10 of the present invention comprises a fan head 100 and a bracket assembly 200, the fan head 100 comprises a mesh cover 110, fan blades 120 and a heating element 130, the fan blades 120 are rotatably arranged in the mesh cover 110 to realize the function of blowing cold air; the heating element 130 is arranged in the mesh cover 110 to heat the air, that is, the fan 10 of the present application also has the function of heating; the mesh cover 110 has a cover shell portion 111 arranged in an annular shape, the cover shell portion 111 comprises an air inlet 112 and a shielding portion 115 arranged along the circumferential direction, the air inlet 112 is projected upward along the radial direction of the cover shell portion 111 and at least partially falls on the shielding portion 115, so that when the fan 10 is in the cold air mode, the air can not only enter from the air inlet end of the mesh cover 110, but also enter from the air inlet 112 at the circumferential direction of the cover shell portion 111, and the air inlet of the mesh cover 110 is The two air inlets at the wind end and the air inlet 112 are conducive to increasing the air intake volume of the cold air and ensuring the wind speed of the cold air, so that the fan 10 has a better cold air effect; when the fan 10 is in the warm air mode, the air enters the mesh cover 110 and is heated. The hot air has a small density, is light in weight and rises upward. Since a shielding portion 115 is provided at the circumference of the cover shell 111, the shielding portion 115 can shield the hot air, so that the hot air in the mesh cover 110 cannot directly pass through the cover shell 111 and flow upward, thereby avoiding heat loss. The hot air can only be blown out from the air outlet end of the mesh cover 110 as the fan blades 120 rotate, which is conducive to ensuring the warm air effect; and the shielding portion can also block part of the cold air from entering the mesh cover 110, thereby reducing the cold air mixed in the warm air mode, further allowing the fan 10 to have a better warm air effect. It can be seen that the fan 10 of the present application has a heating function in addition to the function of blowing cold air, and the cooling and warming effects of the fan 10 are good, that is, the fan 10 of the present application can be better compatible with the cold air mode and the warm air mode.

[0059] In one embodiment, the upper half of the housing portion 111 is closed to form the shielding portion 115, and the lower half of the housing portion 111 is provided with the air inlet 112. It is understandable that when the fan 10 is in the cold air mode, air can not only enter from the air inlet end of the mesh cover 110, but also from the air inlet 112 of the lower half of the housing portion 111. The air inlet from the air inlet end of the mesh cover 110 and the air inlet 112 is conducive to increasing the amount of cold air entering and ensuring the wind speed of the cold air, so that the fan 10 has a better cold air effect; when the fan 10 is in the warm air mode, the air is heated after entering the mesh cover 110, and the hot air has a small density and a light weight and rises upward. The upper half of the shell 111 is closed, so that the hot air in the mesh cover 110 cannot directly pass through the upper half of the cover shell 111 and flow upward, avoiding heat loss. The hot air can only be blown out from the air outlet end of the mesh cover 110 as the fan blades 120 rotate, which is conducive to ensuring the warm air effect; and the upper half of the cover shell 111 can also block part of the cold air from entering the mesh cover 110, thereby reducing the mixed cold air in the warm air mode, and further making the fan 10 have a better warm air effect.

[0060] In one embodiment, the mesh cover 110 is rotatably connected to the bracket assembly 200. In this way, by setting the bracket assembly 200, the mesh cover 110 can drive the fan head 100 to rotate as a whole, thereby achieving the effect of the fan head 100 shaking its head, wherein the rotation of the mesh cover 110 can be up and down rotation or left and right rotation, that is, the fan head 100 can rotate up and down and / or left and right rotation.

[0061] See also Figures 2 to 5 In one embodiment, the mesh cover 110 has a relative air inlet end and an air outlet end, the air inlet 112 and the shielding portion 115 are arranged between the air inlet end and the air outlet end, the heating element 130 is arranged between the fan blade 120 and the air inlet end, and at least part of the projection of the fan blade 120 in the up and down directions falls into the air inlet 112.

[0062] It can be understood that the heating element 130 is arranged on the air inlet side of the fan blade 120, that is, when the fan blade 120 rotates, cold air is sucked in from the air inlet end of the mesh cover 110, and becomes hot air after being heated by the heating element 130, 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 hot air is blown out evenly, which is beneficial to improving the comfort of users.

[0063] Furthermore, the air inlet 112 and the shielding portion 115 are arranged between the air inlet end and the air outlet end. In the cold air mode, in addition to the cold air entering from the air inlet end of the mesh cover 110, the cold air can also enter from the air inlet 112, so that the cold air intake can be supplemented to ensure the cold air outlet, so that the fan 10 has a better cold air effect. Moreover, in the heating mode, the cold air mainly enters from the air inlet end, and the air entering the air inlet end is heated by the heating element 130 and then discharged. In the heating mode, the speed of the fan blade 120 is reduced, and the air entering the air inlet 112 is less, and the shielding portion 115 can also block the air flow, further reducing the entry of cold air from the side of the mesh cover 110, that is, reducing the cold air mixed in the warm air, so that the cold air in the warm air blown out from the air outlet end of the mesh cover 110 is less, and the fan 10 has a better warm air effect.

[0064] Furthermore, at least part of the projection of the fan blades 120 in the up-down direction falls into the air inlet 112, so that the air entering from the air inlet 112 will be directly dispersed by the rotating fan blades 120, thereby reducing the wind resistance of this part of the air and reducing the noise generated by the reversal of this part of the air. It can be seen that this solution is conducive to reducing the noise generated by the fan 10 while increasing the air intake volume by setting the downward projection of at least part of the fan blades 120 to fall into the air inlet 112, thereby improving the applicability of the fan 10.

[0065] In one embodiment, the projection of one end of the fan blade 120 close to the heating element 130 in the vertical direction falls into the air inlet 112. With such a configuration, all the air entering from the air inlet 112 can be dispersed by the rotating fan blade 120 and then blown out from the air outlet end 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 the reversal of this part of the air.

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

[0067] See also Figure 4In order to ensure that the fan 10 has a better warm air effect, 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, wherein 10mm≤D1≤25mm. It can be understood that when the distance between the heating element 130 and the fan blade 120 is 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 far, it will affect the warm air effect of the fan 10. This solution limits the distance between the heating element 130 and the fan blade 120 along the axial direction of the fan blade 120, so that the fan 10 has a better warm air effect, wherein D1 can be 10mm, or 12mm, or 15mm, or 18mm, or 20mm, or 22mm, or 25mm, etc., which is not specifically limited here.

[0068] See also 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, and the distance between one end of the fan blade 120 close to the heat generating 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] It is understandable that by limiting the size of D2, it is possible to ensure that the downward projection of part of the fan blades 120 or all of the fan blades 120 falls into the air inlet 112. According to the above, the air entering along the radial direction of the fan blades 120 and through the air inlet 112 can be dispersed by the rotating fan blades 120 and then blown out from the air outlet end of the mesh cover 110, which can reduce the wind resistance of the air entering from the air inlet 112, thereby reducing the noise generated by the reversal of this part of the air. Among them, D2 can be 5mm, or 8mm, or 10mm, or 15mm, etc., and can be specifically set according to the height H of the fan blades 120 along its axial direction, which is not limited here.

[0070] See also Figures 3 to 6 In one embodiment, the fan 10 further includes a heat insulating member 300 , which is disposed in the mesh cover 110 and sleeved outside the heat generating member 130 along the axial direction of the fan blade 120 .

[0071] It is understandable that the heat insulating member 300 can be arranged in an annular shape, and the heat insulating member 300 is used to isolate the heat generated to prevent the heat of the heating element 130 from being transferred to the mesh cover 110. In particular, when the fan blade 120 stops rotating due to a fault, or the speed of the fan blade 120 decreases, and the fan 10 fails to work, if the heat insulating member 300 is not provided, the heat of the heating element 130 will be transferred to the mesh cover 110 or objects outside the mesh cover 110, thereby causing safety accidents such as fire. This solution is beneficial to improving the safety performance of the fan 10 by sleeve-arranging the heat insulating member 300 outside the heating element 130 along the axial direction of the fan blade 120. In this embodiment, the center line of the heat insulating member 300 coincides with the rotation axis of the fan blade 120, which is beneficial to improving the consistency of the fan 10.

[0072] In addition, the heat insulating member 300 also has the function of gathering heat. When the heating element 130 heats the air, the heat generated by the heating element 130 is gathered in the heat insulating member 300 to prevent the heat from spreading arbitrarily. The fan blades 120 rotate to take away the gathered heat, which is beneficial to improving the heating effect of the fan 10. In addition, by providing the heat insulating member 300, the heat on the mesh cover 110 is relatively low, so that the mesh cover 110 can be made of a material with a lower heat resistance than the heat insulating member 300. Since the material usage of the mesh cover 110 is greater than the material usage of the heat insulating member 300, the mesh cover 110 is made of a material with a lower heat resistance, which is beneficial to reducing the manufacturing cost of the fan 10.

[0073] See also Figure 4 In one embodiment, the distance between the heating element 130 and the heat insulating element 300 in the radial direction of the fan blade 120 is D3, wherein 5mm≤D3≤25mm. It can be understood that when the distance between the heating element 130 and the heat insulating element 300 is close, the heat insulating element 300 will affect the smoothness of air flow; when the distance between the heating element 130 and the fan blade 120 is far, it will affect the heat insulation and heat gathering effect of the fan 10. This solution limits the distance between the heating element 130 and the heat insulating element 300 in the radial direction of the fan blade 120, so that the air can flow smoothly in the heat insulating element 300 and the heat insulation effect is better. Among them, D3 can be 5mm, or 10mm, or 12mm, or 15mm, or 18mm, or 20mm, or 22mm, or 25mm, etc., which is not specifically limited here.

[0074] See also Figure 1 , Figure 7 and Fig. 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, the support member 210 is rotatably disposed on the base 220, and the projection of the air inlet 112 in the up and down directions 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 arranged on the support member 210, and the rotation axis of the mesh cover 110 can be arranged in the horizontal direction, so that the fan head 100 can shake its head up and down. In one embodiment, the fan 10 also includes an up and down shaking driving mechanism, which is respectively connected to the mesh cover 110 and the bracket assembly 200 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 shaking driving mechanism is not limited here. In one embodiment, the up and down shaking driving mechanism includes a horizontal 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, the first drive gear and the first transmission gear are meshed, the first transmission gear is arranged in the vertical direction, the first drive motor is installed in the bracket assembly 200, the horizontal shaft is fixedly connected to the first transmission gear, the horizontal shaft is installed on the mesh cover 110 through a bearing, and the mesh cover 110 is rotatably connected to the bracket assembly 200 through the horizontal shaft. In this way, the function of the fan 10 shaking its head up and down is realized.

[0076] Further, the support member 210 is rotatably arranged on the base 220, and the rotation axis of the support member 210 is arranged in the vertical direction. In this arrangement, the fan head 100 can shake its head left and right. In one embodiment, the fan 10 also includes a left and right shaking driving 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 and right shaking driving mechanism is not limited. In one embodiment, the left and right shaking driving mechanism includes a vertical shaft, a second drive motor, a second drive gear, and a second transmission gear. The second drive motor is installed in 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 are meshed. The second transmission gear is arranged in the horizontal direction. The vertical shaft is fixedly connected to the second transmission gear. The vertical shaft is installed in the support member 210 through a bearing. The support member 210 is rotatably connected to the base 220 through the vertical shaft. In this arrangement, the function of the fan 10 shaking its head left and right is realized.

[0077] In addition, the projection of the air inlet 112 in the up and down directions falls on the base 220 and is spaced apart from the support member 210, so that when the 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 block the air, which is conducive to the smooth entry of air into the mesh cover 110 from the air inlet 112.

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

[0079] It can be understood that the column inclined section 212 is inclined upward, that is, an angle is formed between the column rod section 211 and the column inclined section 212. By setting the angle, the column bracket 213 can also be inclined, so that the position of the mesh cover 110 can be adjusted so that the downward projection of the air inlet 112 in the lower half of the mesh cover 110 falls on the base 220 and is spaced apart from the support member 210, thereby improving the smoothness of air entering the mesh cover 110 along the air inlet 112.

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

[0081] See also Figure 7 In one embodiment, the column rod segment 211 is arranged along the vertical direction, and the angle between the column inclined section 212 and the column rod segment 211 is α, wherein 105°≤α≤150°; and / or, the opening of the column bracket 213 is arranged upward, and on the axial projection plane of the fan blade 120, the angle between the column inclined section 212 and the column bracket 213 is β, wherein 60°≤β≤105°.

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

[0083] On the axial projection surface of the fan blade 120, the angle between the column inclined section 212 and the column bracket 213 can be 60°, or 70°, or 80°, or 90°, or 100°, or 105°, etc., and is not specifically limited here. By limiting the size of β, the inclination angle of the column bracket 213 relative to the column rod section 211 is limited, that is, the position of the fan head 100 relative to the column rod section 211 can be limited. The lower half of the cover shell 111 is provided with an air inlet 112, and 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 column inclined section 212 and the column bracket 213 cooperate to have a small resistance to the air, that is, the wind resistance of the air passing through the column assembly into the mesh cover 110 is reduced, which is conducive to increasing the air intake into the mesh cover 110. It can be seen that this solution is beneficial to increasing the air intake volume of the fan 10.

[0084] See also 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 , and the mist outlet 410 is spaced apart from the fan head 100 and is located below the fan head 100 .

[0085] It can be understood that the humidifying device 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, and of course it can also be set directly in front of the fan 10, or diagonally in front, so that the water mist can be diffused with the air flow, thereby humidifying the air.

[0086] Furthermore, the mist outlet 410 is arranged below the fan head 100 and is spaced apart from the mesh cover 110. The fan blades 120 of the fan 10 rotate to drive the air flow around the fan head 100. The air flow drives the water mist to flow and diffuse outward along the air flow direction of the fan 10, thus realizing the function of the fan 10 to humidify the air. It can be seen that no mist guide pipe is arranged between the mist outlet 410 and the fan head 100 of this solution, so that the condensation and reflux of the water mist in the mist guide pipe are avoided. The humidifying device 400 and the fan head 100 have simple structures, and the structure between the two is simple, so that the fan 10 has a certain aesthetics.

[0087] See also Figures 7 to 9In one embodiment, the humidifying device 400 includes a shell, an atomizing sheet 450 and a fan 460, the shell is formed with a water storage chamber 420, an atomizing chamber 430 and a mist guiding channel 440, the water storage chamber 420, the atomizing chamber 430, the mist guiding channel 440 and the mist outlet 410 are connected in sequence; the atomizing sheet 450 is arranged in the atomizing chamber 430 to atomize the water in the atomizing chamber 430; the fan 460 is arranged in the shell, and the fan 460 is used to send air into the atomizing chamber 430, so that the water mist in the atomizing chamber 430 is discharged from the mist outlet 410 after being guided by the mist guiding channel 440.

[0088] It can be understood that the atomizer sheet 450 can be an ultrasonic atomizer sheet, which is electrically connected to the controller of the fan 10. The atomizer sheet 450 uses electronic high-frequency oscillation based on the ultrasonic principle to break up the liquid water molecular structure to form water mist, thereby ensuring the humidification amount. At the same time, the atomizer sheet 450 can be replaceably arranged in the atomization chamber 430, so that the structure of the humidification device 400 is 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 sheet 450 can atomize the water into water mist. The support assembly 200 or the housing of the fan 10 can be provided with an air inlet hole, and the fan 460 can be provided at the air inlet hole. The number of the fans 460 can be set as needed, and the number can be one or more, which is not limited here.

[0090] Specifically, the controller of the fan 10 controls the atomizing sheet 450 to work, and the controller also controls the fan 460 to operate, so as to blow air into the atomizing chamber 430, and the water in the water storage chamber 420 flows into the atomizing chamber 430 for the atomizing sheet 450 to atomize; a mist outlet is formed on the housing to connect the atomizing chamber 430 and the mist guide channel 440. When the air needs to be humidified, the controller controls the fan 460 to rotate, so as to blow air into the atomizing chamber 430. Under the action of the airflow, the water mist in the atomizing chamber 430 passes through the mist outlet and enters the mist guide channel 440. The mist guide channel 440 guides the airflow and the water mist, so as to discharge the water mist from the mist outlet 410, and the discharged water mist humidifies the air. In this embodiment, the air inlet can be arranged at the bottom of the fan 10 or on the side wall of the housing, and the mist outlet 410 can be arranged at the top of the housing, so as to ensure that under the action of the fan 460, the water mist in the atomizing chamber 430 can be completely discharged from the mist outlet 410; the mist guide channel 440 is hidden in the housing, and compared with the prior art that sets a guide pipe to guide the water mist to the air outlet side of the mesh cover 110, the length of the mist guide channel 440 of this solution is shorter, which avoids the situation that the length of the guide pipe set in the prior art is too long, and part of the water mist will condense and reflux along the pipe wall of the guide pipe and affect the humidification efficiency. This solution is conducive to improving the humidification effect. In addition, the mist guide channel 440 improves the smoothness of the flow of the water mist. Under the pressurization of the fan 460, the speed at which the water mist is sprayed outward is faster, which is conducive to improving the uniformity of the humidified air.

[0091] In one embodiment, a mist outlet connecting the atomizing chamber 430 and the mist guiding channel 440 is formed on the shell, and the mist outlet is arranged toward the side wall of the shell. Specifically in this embodiment, the side wall direction of the shell is the horizontal direction, that is, the mist outlet is arranged toward the horizontal direction. In this way, the mist outlet opened in the horizontal direction connects the atomizing chamber 430 and the mist guiding channel 440, avoiding the airflow blown out from the mist outlet to blow directly upward. When the airflow containing water droplets passes through the mist outlet and enters the mist guiding channel 440, the water droplets will 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, thus avoiding the situation where the water droplets are blown out directly from the mist outlet 410, thereby ensuring the effect of water mist humidification.

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

[0093] In one embodiment, the water storage chamber 420 is arranged in a ring shape around the circumference of the mist guiding channel 440; and / or the mist guiding channel 440 is extended in the up and down directions, and the mist outlet 410 is arranged at the top of the shell. It can be understood that the water storage chamber 420 is arranged in a ring around the mist guide channel 440, so that the internal space of the shell can be fully utilized, so that the structures of the mist guide channel 440 and the water storage chamber 420 are compactly arranged, and the mist guide channel 440 is extended in the up and down directions, and the mist outlet 410 is arranged at the top of the shell. Such a configuration makes the resistance of water mist flowing in the mist guide channel 440 smaller, and the water mist can flow smoothly toward the mist outlet 410, thereby improving the smoothness of the flow of water mist; at the same time, the mist guide channel 440 is also hidden in the shell. Compared with the prior art in which a guide pipe is set to guide the water mist to the air outlet side of the mesh cover 110, the length of the mist guide channel 440 of this scheme is shorter, which avoids the situation that the length of the guide pipe set in the prior art is too long, and part of the water mist will condense and reflux along the pipe wall of the guide pipe to affect the humidification efficiency. This scheme is conducive to improving the humidification effect.

[0094] See also Fig. 9 In one embodiment, at least part of the projection of the fan blade 120 in the up-down direction falls on the humidifying device 400, the mist outlet 410 is opened upward and is located on the air outlet side of the heating element 130 along the axial direction of the fan blade 120, and the projection of the air inlet 112 in the up-down direction falls outside the mist outlet 410 and is located between the mist outlet 410 and the air inlet end of the mesh cover 110.

[0095] In such an arrangement, the fan blade 120 is located directly above the humidifying device 400, and 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 flow forward along the air outlet end of the mesh cover 110. The water mist will not enter the mesh cover 110 along the air inlet 112 to cause the heating element 130 to fail. In this way, the influence of the water mist on the heating element 130 is avoided, and the service life of the fan 10 is improved.

[0096] See also Fig. 9 In order 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, and 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 are spaced D4, wherein D4 ≥ 50 mm.

[0097] It is understandable 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 be not less than 50 mm, it is ensured that the water mist will flow toward the air outlet end of the mesh cover 110 when sprayed upward, and the water mist will not enter the mesh cover 110 to affect the heating element 130. Among them, D4 can be 50 mm, or 55 mm, or 60 mm, or 70 mm, etc., which is not specifically limited here.

[0098] See also Fig.11 and Fig.12 In one embodiment, the fan 10 further includes a clean ion generator 600 , and the clean ion generator 600 is disposed in the mesh cover 110 to generate clean ions in the mesh cover 110 .

[0099] It can be understood that the net ion generator 600 is used to generate net ions, which are positive and negative ion groups. The positive ions combined with the negative ions can surround and decompose harmful substances such as floating molds and viruses in the air. The ions in the ion group generate the most oxidizing OH- (hydroxyl) free radicals at the moment of attaching to the surface of the floating bacteria, extracting H+ (hydrogen ions) from the protein of the floating bacteria, making them inactive and causing the death of the floating bacteria, and combining OH- with H+ to generate H 2 O returns to the air in the form of water molecules, achieving the purpose of purifying the air; and the clean ions can also inhibit the growth and reproduction of attached mold, further eliminating odors and odors. In addition, the clean ion generator 600 can be set on the mesh cover 110, and of course it can also be fixed by a mounting bracket. The specific position is not limited, as long as the clean ions generated by the clean ion generator 600 can flow with the air in the air flow channel.

[0100] It can be seen that the clean ion generator 600 in the present scheme can generate clean ions, which are discharged into the room along with the air in the air flow channel of the mesh cover 110 to sterilize the indoor air. It can also inhibit the growth of bacteria in the air and achieve the effect of removing odors. That is, the fan 10 in the present scheme also has the function of sterilizing the air and removing odors, and the fan 10 of the present application is highly practical.

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

[0102] It is understandable that the heat insulating member 300 can be arranged in a ring shape, and the heat insulating member 300 is used to isolate 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 further includes a driving member 500, and the driving member 500 is installed on the heat insulating member 300. The driving member 500 can be a driving motor, that is, the driving motor is installed on the heat insulating member 300, so that the structure inside the mesh cover 110 is compactly arranged, the utilization rate of the heat insulating member 300 is high, and no additional fasteners are required, which is conducive to the miniaturization of the fan 10 and the reduction of material consumption, thereby helping to reduce the production cost of the fan 10.

[0103] Furthermore, the clean ion generator 600 can be arranged on the mesh cover 110, or on the heat insulating member 300. Of course, a part of it can be arranged on the mesh cover 110, and the other part can be arranged on the heat insulating member 300. It can be arranged specifically as needed and is not limited here. When the clean ion generator 600 is arranged on the heat insulating member 300, the structure of the heat insulating member 300 and the clean ion generator 600 is compactly arranged, and the utilization rate of the heat insulating member 300 is high. The clean ion generator 600 is spaced apart from the heating element 130 to prevent the heat generated by the heating element 130 from scalding or burning the clean ion generator 600, thereby increasing the service life of the clean ion generator 600.

[0104] In one embodiment, the heat insulating member 300 and the mesh cover 110 enclose a receiving cavity, the clean ion generator 600 is disposed in the receiving cavity, and the clean ion generator 600 includes a clean ion emission head 610, and the clean ion emission head 610 passes through the receiving cavity toward the heating element 130.

[0105] It can be understood that the clean ion generator 600 is arranged in a accommodating cavity formed by the thermal insulation member 300 and the mesh cover 110. The accommodating cavity is not only used for the installation of the clean ion generator 600, but also can shield the clean ion generator 600. In this way, the thermal insulation member 300 can protect the clean ion generator 600 and avoid the clean ion generator 600 from being fully exposed in the mesh cover 110, thereby improving the aesthetics of the fan 10.

[0106] Furthermore, the net ion emission head 610 has a net ion emission port 611, which passes through the heating element 130 to the outside of the accommodating cavity and is spaced apart from the heating element 130. This facilitates the emission of the net ions generated by the net ion emission head 610 to the outside of the accommodating cavity. That is, the net ions generated by the net ion emission head 610 can be directly emitted into the air flow channel and flow into the room with the air, so as to realize the function of sterilizing and removing odors from the indoor air by the net ions.

[0107] See also Fig.11 and Fig.12In one embodiment, the net ion generator 600 also includes a generator body 620 connected to the net ion emission head 610, the generator body 620 is disposed in the accommodating cavity, the mesh cover 110 and / or the thermal insulation member 300 are provided with a mounting hole connected to the accommodating cavity, and the net ion emission head 610 is passed through the mounting hole.

[0108] It is understandable 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 so that the generator body 620 is ionized to generate clean ions, and the generated clean ions are emitted through the clean ion emission head 610. The mounting hole is provided on the mesh cover 110; or, the mounting hole is provided on the heat insulation member 300; or, the mesh cover 110 and the heat insulation member 300 are enclosed to form a mounting hole, and the heating element 130 is spaced apart from the mounting hole. The clean ion emission head 610 is inserted into the mounting hole, and a clean ion emission port 611 is provided at one end of the clean ion emission head 610 close to the heating element 130, and the clean ion emission port 611 is provided between the mounting hole and the heating element 130. With such a configuration, when the heating element 130 is working, the clean ions emitted from the clean ion emission port 611 can also be heated, which is beneficial to improve the sterilization effect of the clean ions.

[0109] See also Fig.11 In one embodiment, the thermal insulation member 300 includes a thermal insulation ring 310 and a cover body 320, the thermal insulation ring 310 is sleeved on the outside of the heating element 130, the net ion generator 600 is arranged on the mesh cover 110, the cover body 320 is arranged on the outer peripheral wall of the thermal insulation ring 310 and covers the net ion generator 600, and the cover body 320 and the mesh cover 110 enclose the mounting hole.

[0110] It is understandable that a mounting position may be provided on the mesh cover 110, and both the generator body 620 and the net ion emission head 610 may be provided in the mounting position, and the cover body 320 covers the generator body 620 and the net ion emission head 610 to fix and protect the generator body 620 and the net ion emission head 610; and the mounting hole is formed by the cover body 320 and the mesh cover 110, so that the net ion emission head 610 is conveniently inserted into the mounting hole, and the net ion emission port 611 of the net ion emission head 610 is easy to pass out of the mounting hole. It can be seen that this solution enables the net ion generator 600 to be stably installed in the mesh cover 110, and avoids the heat generated by the heating element 130 from burning the net ion generator 600, thereby improving the reliability of the fan 10.

[0111] In one embodiment, the net ion emission head 610 has a net ion emission port 611 , which is spaced apart from the heating element 130 , and is disposed between the inner circumferential wall of the insulation ring 310 and the heating element 130 along the radial direction of the insulation ring 310 .

[0112] It can be understood that the opening direction of the net ion emission port 611 can be set toward the heating element 130, and the heating element 130 is arranged in the air flow channel of the mesh cover 110, so that the net ions emitted from the net ion emission port 611 can be smoothly discharged into the room along the air flow channel; and, the net ion emission port 611 is arranged between the inner wall of the insulation ring 310 and the heating element 130 along the radial direction of the insulation ring 310, and the annular structure of the insulation ring 310 forms an air guide channel, that is, the net ion emission port 611 is arranged on the outer peripheral side of the heating element 130 and is located in the air guide channel of the insulation ring 310, so that the internal space of the insulation ring 310 is fully utilized, the internal space utilization rate of the insulation ring 310 is high, and it is beneficial to improve the smoothness of the flow of net ions in the air guide channel.

[0113] See also Figure 6 , Fig.13 and Fig.14 In one embodiment, the fan 10 further includes a filter 700 , which is detachably mounted on the mesh cover 110 and located outside the mesh cover 110 , so as to filter the air inhaled and / or blown out by the fan blades 120 .

[0114] It is understandable that the filter element 700 is disposed outside the mesh cover 110 and is detachably connected to the mesh cover 110. There are various ways of detachable connection, such as but not limited to: snap connection, screw connection, or adhesion by glue, which can be specifically set as needed. The filter element 700 may include a filter screen 710 to filter the air. In addition, the filter element 700 may be disposed on the air inlet side of the mesh cover 110, so that the inhaled air can be filtered; the filter element 700 may also be disposed on the air outlet side of the mesh cover 110, so that the blown air can be filtered; of course, the filter element 700 may be disposed on the air inlet side and the air outlet side of the mesh cover 110, so as to achieve double filtering to improve the filtering effect. It can be seen that the fan 10 of the present application also has the function of purifying the air.

[0115] See also Fig.13 In one embodiment, the mesh cover 110 has an air inlet side, and the fan 10 further includes a driving member 500, which is drivingly connected to the fan blades 120, and the driving member 500 is disposed in the mesh cover 110 and passes through the air inlet side to the outside of the mesh cover 110.

[0116] It can be understood that the driving member 500 includes a driving motor, which is connected to the fan blades 120 to drive the fan blades 120 to rotate. The mesh cover 110 has an air inlet end and an air outlet end. When the fan blades 120 rotate, air is sucked in from the air inlet end of the mesh cover 110, passes through the air flow channel of the mesh cover 110, and is discharged from the air outlet end of the mesh cover 110.

[0117] Furthermore, the driving member 500 is disposed in the mesh cover 110, and the driving member 500 occupies a certain space in the mesh cover 110. The driving member 500 in this solution passes through the air inlet side of the mesh cover 110 to the outside of the mesh cover 110, thereby reducing the space occupied by the driving member 500 in the mesh cover 110 and utilizing the space outside the mesh cover 110. This is beneficial to improving the space utilization rate inside and outside the mesh cover 110, is beneficial to the miniaturization of the mesh cover 110, and is also beneficial to the heat dissipation of the driving member 500.

[0118] In one embodiment, the filter element 700 is located on the air inlet side, and the filter element 700 is provided with a evacuation portion for evading the driver 500. It is understandable that the filter element 700 is provided outside the mesh cover 110 and is located on the air inlet side of the mesh cover 110, and the end of the driver 500 facing the air inlet side passes out of the mesh cover 110. In order to avoid interference between the filter element 700 provided on the mesh cover 110 and the part of the driver 500 passing out, the filter element 700 is provided with an evacuation portion, and the evacuation portion can be hole-shaped, or groove-shaped, or other shapes, which are not limited here. By providing the evacuation portion, the driver 500 can pass out of the mesh cover 110 smoothly, and the arrangement structure of the filter element 700 provided outside the mesh cover 110 and the driver 500 is compact, and the integrity of the fan 10 is better.

[0119] In one embodiment, the filter element 700 includes a filter screen 710 , which is provided with an avoidance hole 711 . The filter screen 710 is disposed outside the mesh cover 110 and located on the air inlet side. The driving element 500 located outside the mesh cover 110 is disposed in the avoidance hole 711 .

[0120] It is understandable that the filter 710 can be made of a variety of materials, such as a polyester screen, a fiber screen, or a nylon screen, etc., which are not specifically limited here. The avoidance hole 711 can be set in the middle of the filter 710, or any other position. In this embodiment, the center line of the avoidance hole 711 coincides with the center line of the filter 710, and the filter 710 is sleeved on the drive member 500 located outside the mesh cover 110 through the avoidance hole 711. In this way, the space on the air inlet side of the mesh cover 110 is fully utilized, and the filter 710 and the drive member 500 do not interfere with each other. The two structures are compactly arranged, and the overall space utilization rate of the fan 10 is high, which is conducive to the miniaturization of the fan 10 and the reduction of material consumption, thereby helping to reduce production costs.

[0121] In one embodiment, the filter element 700 also includes a filter cover 720, which is disposed outside the mesh cover 110 and covers the filter net 710; the filter cover 720 is provided with air holes and avoidance grooves, the filter net 710 is arranged corresponding to the air holes, and the end of the driving member 500 located outside the mesh cover 110 is arranged in the avoidance groove.

[0122] It can be understood that the filter cover 720 is provided with air holes, and the air holes are arranged corresponding to the filter screen 710. When the fan blades 120 rotate, the air inhaled by the fan blades 120 passes through the air holes and the filter screen 710 in sequence and enters the mesh cover 110, and flows along the air flow channel of the mesh cover 110 and is discharged from the air outlet side of the mesh cover 110. The air holes are used for air to pass through.

[0123] Furthermore, the filter cover 720 is also provided with an avoidance groove for accommodating the end of the driving member 500 that passes through the mesh cover 110. By providing the avoidance groove, the end of the driving member 500 can be covered in the filter cover 720. The filter cover 720 can protect the driving member 500, which is beneficial to improve the safety of the fan 10.

[0124] In one embodiment, the filter cover 720 is provided with a groove on one side facing the mesh cover 110, a limiting portion is provided at the notch of the groove, the limiting portion is spaced apart from the bottom of the groove to form a limiting groove, the filter net 710 is arranged in the limiting groove, and the avoidance groove is arranged at the bottom of the limiting groove.

[0125] It can be understood that the limiting portion can be a limiting block or a limiting ring, which is not specifically limited here. In the present embodiment, the limiting portion includes a plurality of limiting blocks, which are arranged in sequence and spaced apart on the groove side wall of the groove around the circumference of the filter cover 720 to form a limiting groove with the groove. The filter element 700 is arranged in the limiting groove, and the limiting block limits 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 understandable that there are many ways of detachable connection, such as snap connection, or connection through a connector. In this embodiment, a groove is provided on the outer surface of the mesh cover 110 facing the air inlet side, and the filter element 700 is arranged in the groove. Such a configuration facilitates the installation of the filter element 700.

[0127] In one embodiment, a buckle is provided on one of the filter cover 720 and the mesh cover 110, and a slot is provided on the other, and the buckle is engaged with the slot. It is understandable that the buckle can be a rotary buckle, and the slot is adapted to the rotary buckle. When installing the filter cover 720, the rotary buckle can be locked in the slot by rotating the filter cover 720. In this embodiment, a rotary buckle is provided on the outer peripheral wall of the filter cover 720, and a slot is provided on the side wall of the groove, so that the filter cover 720 is easily installed in the groove of the mesh cover 110.

[0128] In one embodiment, a first screw hole is provided on the filter cover 720, and a second screw hole is provided on the mesh cover 110. 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, thereby ensuring the stability of the filter cover 720 installed on the mesh cover 110.

[0129] See also Fig.13 and Fig.14 In one embodiment, the filter cover 720 is further provided with a first heat dissipation hole 721 , the driving member 500 is provided with a second heat dissipation hole 510 , and the first heat dissipation hole 721 is connected to the second heat dissipation hole 510 .

[0130] It can be understood that the first heat dissipation hole 721 is arranged outside the mesh cover 110, the driving member 500 includes a shell, the driving motor is arranged in the shell, and the shell is provided with a second heat dissipation hole 510 connected with the first heat dissipation hole 721. The 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 shell to dissipate the heat of the driving motor. Of course, the shell is also provided with a third heat dissipation hole for air to be discharged outside the shell, which can improve the heat dissipation effect of the driving motor and improve the stability of the operation of the fan 10.

[0131] In addition, the third heat dissipation hole is arranged in the mesh cover 110, that is, the air dissipated by the driving motor 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 driving motor for heat dissipation merges with the air heated by the heating element 130 and is blown out from the exhaust side of the mesh cover 110, which is beneficial to improving the heating effect of the fan 10.

[0132] See also Fig. 9 and Fig.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 having a receiving cavity 221, the support member 210 being rotatably disposed on the base 220, the rotation axis of the support member 210 being disposed along a vertical direction, a rotation gap 222 being provided between the support member 210 and the base 220, the rotation gap 222 being communicated with the receiving cavity 221; the water receiving member 900 is disposed in the receiving cavity 221 for receiving water flowing into the rotation gap 222.

[0133] It is understandable that the specific structure of the water receiving member 900 is not limited. The water receiving member 900 can be partially inserted into the rotating gap 222, and of course it can also be arranged below the rotating gap 222. It is only necessary that the water receiving member 900 can receive the water flowing into the rotating gap 222. The water in the water receiving member 900 can be collected by the water storage member, and of course it can also be discharged to the outside of the base 220 through the drainage channel. The specific details are not limited here, and there is a related introduction later. By providing the water receiving member 900, it is prevented that water flows into the base 220 from the rotating gap 222 and contacts the electric control components in the base 220, thereby preventing the occurrence of a short circuit in the electric control components.

[0134] See also Fig.10 In one embodiment, the base 220 includes an upper cover 223, and the upper cover 223 is provided with a first mounting hole 224 connected to 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 understandable that the support member 210 can be connected to the base 220 through a left and right shaking drive mechanism, that is, the fan 10 also includes a left and right shaking drive mechanism, which is arranged at the first mounting hole 224 and is drivingly connected to the support member 210. The support member 210 can be completely arranged outside the first mounting hole 224. Of course, the support member 210 can also be inserted into the first mounting hole 224, which is not specifically limited here, and the support member 210 only needs to be rotatable relative to the base 220. The first water receiving groove 910 can be arranged in a sink shape, or in a ring groove 214 shape, which is not specifically limited here. The edge of the first mounting hole 224 is the edge of the opening of the first mounting hole 224, and the projection of the edge of the first mounting hole 224 in the up and down direction falls into the first water receiving groove 910, that is, the water flowing into the rotating gap 222 along the edge of the first mounting hole 224 can fall downward into the first water receiving groove 910, thereby realizing the function of receiving water.

[0136] See also Fig.10 In one embodiment, the edge of the first mounting hole 224 is provided with a first water retaining platform 225 extending outward, and the first water retaining platform 225 is arranged in a ring shape. It can be understood that when water falls on the base 220, if the height of the water droplets or water flow does not exceed the height of the first water retaining platform 225, the water cannot flow into the rotating gap 222, that is, the first water retaining platform 225 can block part of the water from flowing into the rotating gap 222, which is conducive to improving the safety of the fan 10.

[0137] In one embodiment, the edge of the first mounting hole 224 is provided with a second water retaining platform 226 extending inward, the second water retaining platform 226 is arranged in an annular shape, and the downward projection of the second water retaining platform 226 falls into the first water receiving groove 910. Such an arrangement enables the second water retaining platform 226 to guide the water flowing into the first water receiving groove 910 along the hole wall of the first mounting hole 224, which is conducive to all the water flowing along the inner wall of the first mounting hole 224 flowing into the first water receiving groove 910; at the same time, there is a height difference between the bottom end of the second water retaining platform 226 and the inner wall surface of the upper cover 223, and the second water retaining platform 226 can also prevent water from flowing along the edge of the first mounting hole 224 through the inner wall surface of the upper cover 223 and contacting the electric control components in the accommodating cavity 221, thereby improving the safety of the fan 10. In one embodiment, the bottom end of the second water retaining platform 226 is arranged in the first water receiving groove 910, which is conducive to improving the guiding effect of the second water retaining platform 226.

[0138] In one embodiment, the water receiving member 900 is provided with a second mounting hole 920, the lower end of the support member 210 passes through the first mounting hole 224 and the second mounting hole 920 to be rotatably connected with the base 220, and the first water receiving groove 910 is arranged in a ring shape around the second mounting hole 920. In this arrangement, the lower end of the support member 210 passes through the water receiving member 900 and is arranged in the accommodating cavity 221, and the position of the driving connection between the support member 210 and the base 220 is relatively low, which is conducive to the installation of the left and right shaking driving mechanism, and is also conducive to improving the stability of the support member 210 rotating on the base 220. The second mounting hole 920 avoids the support member 210 so that the support member 210 passes through; the first water receiving groove 910 is arranged in a ring shape around the second mounting hole 920, so that the first water receiving groove 910 can fully receive the water flowing into the rotating gap 222.

[0139] See also Fig.10In one embodiment, an annular groove 214 is provided on the outer peripheral wall of the lower end of the support member 210, and the hole wall of the first mounting hole 224 and the hole wall of the second mounting hole 920 are arranged in the annular groove 214, and the aperture of the first mounting hole 224 is larger than the aperture of the second mounting hole 920. The arrangement is such that the downward projection of the outer peripheral wall of the lower end of the support member 210 falls outside the first mounting hole 224, so that the outer peripheral wall of the lower end of the support member 210 can block part of the water from falling into the rotating gap 222; and the hole wall of the second mounting hole 920 is arranged in the annular groove 214, and the notch of the annular groove 214 is arranged outward in the horizontal direction, so that the rotating gap 222 and the support member 210 together form a circuitous structure, so that water spilled on the base 220 is not easy to flow into the rotating gap 222, and the aperture of the first mounting hole 224 is larger than the aperture of the second mounting hole 920, so that the water flowing into the rotating gap 222 will flow into the first water receiving groove 910, thereby ensuring that the water receiving member 900 can receive the water flowing into the rotating gap 222, and the fan 10 of the present application has a higher safety.

[0140] In one embodiment, the water receiving member 900 is further provided with a drainage channel, and the bottom end of the base 220 is provided with a drainage port, and the drainage channel connects the first water receiving groove 910 and the drainage port. It is understandable that the water in the first water receiving groove 910 can be stored by the water storage member, and of course it can also be discharged to the outside of the base 220. This solution adopts the solution of discharging water from the base 220. The drainage port can be provided on the bottom wall of the lower cover of the base 220, and of course it can also be provided on the side wall of the lower cover, and the specific details are not limited here. By providing a drainage channel on the water receiving member 900, the received water can be discharged from the base 220 in a timely manner, which is conducive to improving the safety of the fan 10.

[0141] See also Fig.10 In one embodiment, the fan 10 further includes a mounting frame 930, on which a second water receiving groove 940 is provided, the bottom end of the support member 210 is disposed in the second water receiving groove 940 and is rotatably connected to the mounting frame 930, and the second water receiving groove 940 is connected to the drainage channel.

[0142] It is understandable that by providing the second water receiving groove 940, the water not received by the first water receiving groove 910 can be further received to ensure that all the water flowing into the rotating gap 222 can be received, thereby improving the safety of the fan 10. The second water receiving groove 940 is arranged below the first water receiving groove 910, and a positioning portion is provided in the second water receiving groove 940, and a rotating bearing is provided on the positioning portion. The bottom end of the support member 210 is sleeved on the rotating bearing so that the support member 210 is rotatably connected to the mounting frame 930. The second water receiving groove 940 is connected to the drainage channel so that the water received by the second water receiving groove 940 can be discharged from the base 220 in a timely manner, thereby improving the safety of the fan 10.

[0143] In one embodiment, a guide area is formed on the outer surface of the upper cover 223, and the guide area is arranged to be inclined downward from the center toward the periphery, and the first mounting hole 224 is arranged near the center of the guide area. In this way, the outer surface of the upper cover 223 is a structure with a high middle and a low edge, and the first mounting hole 224 is arranged near the center of the outer surface of the upper cover 223, so that water spilled on the outer surface of the upper cover 223 will flow toward the edge of the outer surface, so as to avoid water gathering in the middle and flowing into the rotating gap 222, which is conducive to reducing the amount of water flowing into the base 220.

[0144] See also Figure 3 and Fig.15 In one embodiment, the fan 10 further includes a plurality of overheat protectors 800, which are disposed in the mesh cover 110 and are electrically connected to the heating element 130, respectively, so as to respectively protect the heating element 130 from overheating. The plurality of overheat protectors 800 are arranged in sequence along the extension direction of the air flow 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] It can be understood that multiple overheat protectors 800 are electrically connected to the heating element 130 respectively, and multiple overheat protectors 800 respectively protect the heating element 130 from overheating. Multiple overheat protectors 800 correspond to various abnormal working conditions of the heating wire. Multiple overheat protectors 800 are arranged in sequence along the extension direction of the air flow channel of the mesh cover 110. For example, one of the overheat protectors 800 is arranged on the peripheral side of the heating element 130, one of the overheat protectors 800 is arranged on the air outlet side of the heating element 130, or one of the overheat protectors 800 is arranged on the air inlet side of the heating element 130. The specific settings can be made as needed.

[0146] When one of the overheating protectors 800 cannot sense the sharp rise in temperature of the heating element 130 in time, another overheating protector 800 among the multiple overheating protectors 800 arranged in sequence along the extension direction of the airflow channel can sense the sharp rise in temperature of the heating element 130 in time. In other words, corresponding to different temperature rise states of the heating element 130, the multiple overheating protectors 800 arranged in sequence along the extension direction of the airflow channel can correspond to different temperature rise states of the heating element 130, thereby being able to sense the overheating of the heating element 130 in time and then perform overheating power-off protection to ensure the safety of the use of the fan 10.

[0147] It should be noted that one of the overheating protectors 800 is arranged on the air outlet side of the heating element 130. The air outlet side here means that when the air passes through the heating element 130, the downstream of the heating element 130 is the air outlet side of the heating element 130. When the fan 10 tilts the fan blades 120 and cannot rotate normally, the heating element 130 continues to work, and the heat accumulates on the heating element 130. The overheating protector 800 arranged on the air outlet side of the heating element 130 can quickly sense the sharp rise in temperature of the heating element 130. When the temperature exceeds the preset protection value of the overheating protector 800, the overheating protector 800 performs overheating protection on the heating element 130 and cuts off the power to avoid fire, electric shock and the like caused by overheating of the heating element 130, thereby ensuring the safety of the use 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 supply of the limiter when the temperature is too high. The temperature limiter is a resettable thermostat. The fuse is used to melt its own fuse 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 in sequence. The melting temperature of the fuse is higher than the power-off temperature of the temperature limiter. At this time, the fuse is a double insurance for the heating element 130, which is conducive to improving the safety of the fan 10.

[0149] It can be seen that a plurality of overheat protectors 800 are arranged in the air flow channel and are electrically connected to the heating element 130 respectively, so as to protect the heating element 130 from overheating. When the heating element 130 is in an overheating state of abnormal operation, a plurality of overheat protectors 800 arranged in sequence along the extension direction of the air flow channel and at least one overheat protector 800 is provided on the air outlet side of the heating element 130, which can timely sense the rise in the temperature of the heating element 130 and disconnect the circuit to avoid the problem that the heat of the heating element 130 cannot be dissipated in time and the overheating temperature rises when the fan 10 falls or the fan blades 120 stop rotating, etc., causing fire and electric shock. That is, the fan 10 of this solution can prevent the occurrence of fire, electric shock and other problems caused by overheating of the heating element 130, thereby improving the safety of the fan 10. It can be seen that in addition to the function of blowing air, the fan 10 of this solution has high safety performance.

[0150] See also Fig.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 peripheral side 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 an air inlet end and an air outlet end relative to each other, and the fan 10 has a front and a rear end. When the air outlet end of the mesh cover 110 faces the front of the fan 10, that is, on the positive projection surface of the heating element 130, if the fan blade 120 stops rotating or rotates slowly due to a fault, the heating element 130 heats up rapidly, and the heat generated by the heating element 130 flows upward, and the first overheat protection provided on the peripheral side of the heating element 130 can timely and sensitively sense the temperature rise of the heating element 130, thereby quickly powering off the heating element 130, so that the first overheat protector 810 can protect the heating element 130 from overheating. Among them, the first overheat protector 810 is provided on the peripheral side of the upper half of the heating element 130, so as to further improve the sensing sensitivity of the first overheat protection.

[0152] Furthermore, when the fan 10 falls over, the air outlet end of the mesh cover 110 is facing obliquely upward or obliquely downward, that is, when the air outlet end of the mesh cover 110 is at an elevation angle or a depression angle, the heating element 130 is also inclined, and the second overheating protector 820 is arranged on the air outlet side of the heating element 130. When the fan blades 120 stop rotating or rotate slowly due to a malfunction, the heating element 130 heats up rapidly, and the heat generated by the heating element 130 will flow upward. At this time, the second overheating protector 820 is closer to the heating element 130, and the hot air flow will pass through the second overheating protector 820. In this way, the second overheating 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 for protection. It can be seen that when the fan 10 is tilted, the second overheat protector 820 is arranged on the air outlet side of the heating element 130 and can promptly and sensitively perform overheating power-off protection on the heating element 130. This solution ensures the safety of the use of the fan 10 by cooperating with the first overheat protector 810 and the second overheat protector 820.

[0153] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A fan, It is characterized in that include: A fan head, comprising a mesh cover, a fan blade and a heating element, wherein the fan blade is rotatably arranged in the mesh cover; the heating element is arranged in the mesh cover for heating air; the mesh cover has a cover shell portion arranged in an annular shape, the cover shell portion comprises an air inlet and a shielding portion arranged along a circumferential direction, and the air inlet is projected upward along the radial direction of the cover shell portion at least partially falling on the shielding portion; and A bracket assembly, wherein the fan head is arranged on the bracket assembly.

2. The fan according to claim 1, It is characterized in that The mesh cover has an air inlet end and an air outlet end relative to each other, the air inlet and the shielding portion are arranged between the air inlet end and the air outlet end, the heating element is arranged between the fan blades and the air inlet end, and at least part of the projection of the fan blades in the up and down directions falls into the air inlet.

3. The fan according to claim 2, It is characterized in that The projection of one end of the fan blade close to the heating element in the vertical direction falls into the air inlet; and / or, The projection of one end of the heating element away from the fan blade in the up-down direction falls outside the air inlet.

4. The fan according to claim 3, It is characterized in that The distance between the heating element and the fan blade in the axial direction of the fan blade is D1, wherein 10 mm ≤ D1 ≤ 25 mm; and / or, The air inlet has a first edge away from the air inlet end, the distance between one end of the fan blade close to 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.

5. The fan according to claim 1, It is characterized in that The fan further comprises a heat insulating member, which is arranged in the mesh cover and sleeved outside the heat generating member along the axial direction of the fan blade.

6. The fan according to claim 5, It is characterized in that The distance between the heat-generating component and the heat-insulating component in the radial direction of the fan blade is D3, wherein 5mm≤D3≤25mm.

7. The fan according to claim 1, It is characterized in that The bracket assembly includes a support and a base, the mesh cover is rotatably disposed on the support, the support is rotatably disposed on the base, and the projection of the air inlet in the up and down directions falls on the base and is spaced apart from the support.

8. The fan according to claim 7, It is characterized in that The support member includes a column rod section, a column inclined section and a column bracket with an opening, the column inclined section is connected to the upper end of the column rod section and inclined upward, the column bracket is connected to the column inclined section, and the mesh cover is arranged at the opening and is rotatably connected to the opposite ends of the column bracket.

9. The fan according to claim 8, It is characterized in that The column segment is arranged along the vertical direction, and the angle between the column inclined segment and the column segment is α, wherein 105°≤α≤150°; and / or, The opening of the column bracket is arranged upward, and on the axial projection plane of the fan blade, the angle between the column inclined section and the column bracket is β, wherein 60°≤β≤105°.

10. The fan according to claim 1, It is characterized in that The upper half of the housing portion is closed to form the shielding portion, and the lower half of the housing portion is provided with the air inlet; and / or, The mesh cover is rotatably connected to the bracket assembly.

11. The fan according to any one of claims 1 to 10, It is characterized in that The fan further comprises a humidifying device, which is arranged outside the mesh cover and is used to generate water mist. The humidifying device has a mist outlet, and the mist outlet is spaced apart from the fan head and is located below the fan head.

12. The fan according to claim 11, It is characterized in that The humidifying device comprises: A shell, wherein the shell is formed with a water storage chamber, an atomization chamber and a mist guide channel, and the water storage chamber, the atomization chamber, the mist guide channel and the mist outlet are connected in sequence; an atomizing sheet, disposed in the atomizing chamber, for atomizing the water in the atomizing chamber; and A fan is arranged on the housing, and is used to supply air into the atomizing chamber so that the water mist in the atomizing chamber is guided through the mist guiding channel and then discharged from the mist outlet.

13. The fan according to claim 12, It is characterized in that The water storage chamber is arranged in a ring shape around the circumference of the mist guiding channel; and / or, The mist guide channel is extended in the up-down direction, and the mist outlet is arranged at the top of the shell.

14. The fan according to claim 11, It is characterized in that The projection of at least part of the fan blade in the up-down direction falls on the humidifying device, the mist outlet is opened upward and is located on the air outlet side of the heating element along the axial direction of the fan blade, and the projection of the air inlet in the up-down direction falls outside the mist outlet and is located between the mist outlet and the air inlet end of the mesh cover.

15. The fan according to claim 14, It is characterized in that On the axial projection surface of the fan blade, the mist outlet has a second edge close to 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, where D4≥50mm.

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