fan

Abstract

This application relates to a fan. The fan includes a fan head, comprising a grille and blades, the blades being rotatably disposed within the grille; and a body, including a drive assembly and a connector. The drive assembly is fixedly connected to the grille, and its rotation shaft is driven by the blades to drive their rotation. A support shaft of the drive assembly passes through the connector, allowing the drive assembly to rotate relative to the connector around the support shaft. The rotation shaft and the support shaft extend in different directions. A grille support member is provided on the side of the connector facing the grille, abutting against the grille to support it. This fan achieves dual-point support for the grille, thus significantly improving the overall rigidity of the grille and raising the fan's resonant frequency to the high-speed stable range of the drive assembly. This avoids the vibration-sensitive range of the low-speed region of the drive assembly, resulting in smoother operation and reduced vibration.

Description

Technical Field

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

[0002] A fan is a common household appliance. The fan head is usually connected to the fan body via a fixed structure in the center of the rear grille. During high-speed operation, the vibration of the rotating blades and airflow disturbances can easily cause the rear grille to vibrate, affecting the stability of the fan's operation and potentially leading to noise, resonance, or even structural loosening. Utility Model Content

[0003] Therefore, it is necessary to provide a new type of fan to address the problem that the rear grille of existing fans is prone to vibration during high-speed operation, which affects the stability of fan operation and may cause adverse consequences such as noise, resonance, or even structural loosening.

[0004] This application provides a fan, comprising:

[0005] The fan head includes a mesh cover and blades, with the blades rotatably disposed within the mesh cover;

[0006] The fuselage includes a drive assembly and a connector. The drive assembly is fixedly connected to the guard. The rotation shaft of the drive assembly is connected to the blade drive for driving the blade to rotate. The support shaft of the drive assembly passes through the connector. The drive assembly can rotate relative to the connector around the support shaft. The rotation shaft and the support shaft extend in different directions.

[0007] Among them, at least one mesh cover support is provided on the side of the connector facing the mesh cover, and the mesh cover support abuts against the mesh cover to support the mesh cover.

[0008] The aforementioned fan, in addition to fixing the drive component to the mesh cover to form a support for the mesh cover, can also support the mesh cover through the mesh cover support component connected to the connector, achieving dual-point support and improving the overall rigidity of the mesh cover. Therefore, it can effectively improve the shaking phenomenon of the mesh cover during operation, significantly improve the overall operational stability of the fan, reduce the problem of structural loosening caused by noise and resonance, improve the user experience, and extend the service life of the fan.

[0009] In one embodiment, the mesh cover support is rotatable relative to the connector, and the axis of rotation of the mesh cover support is parallel to the axis of the support shaft.

[0010] Since the fan head's grille rotates relative to the connector around the support shaft, and the grille support is located on the connector, if the grille support is fixed, when the grille rotates, the grille and the grille support will not only be in a contacting relationship but also in a relative rotational relationship. This will affect the rotation of the grille, i.e., the fan head's oscillation function. Therefore, by setting the grille support to rotate relative to the connector, and with the rotation axis parallel to the grille's rotation axis, the grille support can rotate simultaneously with the grille when it rotates relative to the connector, thereby reducing the friction between the two. This ensures stable oscillation of the fan head while also providing better support for the grille.

[0011] In one embodiment, the mesh support includes rollers that are rotatable relative to the connector.

[0012] The roller has a simple structure and an annular rolling surface. Therefore, during the rotation of the mesh cover relative to the connector, the annular rolling surface can abut against the mesh cover, making the force between the two uniform and improving the smoothness of the mesh cover rotation and the stability of the support.

[0013] In one embodiment, the mesh support is elastic.

[0014] In this way, on the one hand, the contact wear between the mesh cover and the mesh cover support during the rotation of the relative connector can be reduced, and on the other hand, the shaking between the mesh cover and the mesh cover support can be appropriately buffered.

[0015] In one embodiment, the connector is provided with at least one boss assembly on the side facing the mesh cover. Each boss assembly includes two bosses arranged opposite each other. The number of boss assemblies corresponds to the number of mesh cover supports. The two ends of the rotating shaft of each mesh cover support are rotatably connected to the two bosses of the corresponding boss assembly.

[0016] Setting up two opposing bosses not only provides a location for the connecting head of the rotating shaft of the mesh cover support, but also allows the space between the two bosses to better protect the roller, improve the structural strength of the roller, and reduce the risk of roller damage.

[0017] In one embodiment, each protrusion has a recessed groove on the side facing the mesh cover, and the pivot of the mesh cover support is engaged in the groove.

[0018] The connection between the rotating shaft of the mesh cover support and the boss is convenient and reliable, thanks to the snap-fit ​​method that uses a slot to engage with the shaft.

[0019] In one embodiment, the connector has a central plane passing through the axis of the support shaft, and when there is only one mesh cover support, the axis of rotation of the mesh cover support is located on the central plane; or

[0020] When the number of mesh cover supports is at least two and the number of mesh cover supports is odd, the rotation axis of at least one mesh cover support is located on the central plane, and the remaining mesh cover supports are symmetrically arranged relative to the central plane; or

[0021] When the number of mesh cover support components is even, all mesh cover support components are symmetrically arranged relative to the center plane.

[0022] When the rotation axis of the mesh cover support is located on the center plane of the connector, the mesh cover can always rotate around the rotation axis of the mesh cover support, reducing the unstable contact between the mesh cover support and the mesh cover. When the mesh cover support is symmetrically set relative to the center plane, the fan head can still maintain stable support for the mesh cover when it rotates to the side relative to the connector.

[0023] In one embodiment, the mesh cover support includes multiple supports, all of which are located on the side of the connector facing the mesh cover, and the multiple mesh cover supports are spaced apart from each other around the support axis.

[0024] This ensures that at least one mesh support is always present to support the mesh as it rotates around the support shaft relative to the connector, thus improving the reliability of the support.

[0025] In one embodiment, multiple mesh support members rotate on the same plane.

[0026] In this way, the various mesh support components are not spaced vertically in the direction parallel to the axis of the support shaft, but are set on the same plane perpendicular to the axis of the support shaft. This helps to improve the stability of the force on the mesh during rotation and further reduce the shaking of the mesh.

[0027] In one embodiment, the side surface of the mesh cover facing the mesh cover support has a recess that is recessed away from the mesh cover support. During the rotation of the fan head relative to the connector about the support shaft, the surface of the recess facing the mesh cover support can remain abutting against the mesh cover support.

[0028] The recessed portion can constrain the abutment relationship between the mesh cover and the mesh cover support, improve the reliability of the abutment, and thus improve the reliability of the mesh cover support to reduce the swaying phenomenon during operation.

[0029] In one embodiment, the surface of the recess facing the mesh support is flat.

[0030] Setting the plane to abut against the mesh support can improve the reliability of the abutment between the two.

[0031] In one embodiment, the fuselage further includes a housing, a drive assembly is disposed inside the housing, and a rotating shaft passes through the housing and is connected to the blade drive.

[0032] The mesh cover is fixedly connected to the housing, with the connector located on one side of the housing. The housing can rotate relative to the connector around the support shaft, and the mesh cover support is located on the side of the connector away from the housing.

[0033] Because one part of the mesh cover is fixedly supported by the cover on one side of the connector, while the other part of the mesh cover is supported by the mesh cover support on the side away from the cover, and the two supports maintain a large distance apart, the stability of the support is further improved, which makes the whole machine run more smoothly and the vibration phenomenon is further reduced. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of a fan in one or more embodiments of this application.

[0035] Figure 2 for Figure 1 The diagram shows a cross-sectional view of a portion of the fan's structure.

[0036] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the structure of the fan shown.

[0037] Figure 4 for Figure 1 The diagram shows a partial structure of the fan in one state.

[0038] Figure 5 for Figure 4 An enlarged schematic diagram of part B of the fan structure shown.

[0039] Figure 6 This is a schematic diagram of another state of the fan structure shown.

[0040] Figure 7 for Figure 6 An enlarged schematic diagram of part C of the fan structure shown.

[0041] Figure 8 for Figure 1 A schematic diagram of the connector in the fan.

[0042] Figure 9 for Figure 1 The diagram shows the structure of the mesh support component in the fan.

[0043] Figure 10 for Figure 1 The diagram shows a partial structural diagram of the mesh cover in the fan.

[0044] Figure 11 for Figure 10An enlarged schematic diagram of point D of the mesh cover shown.

[0045] Explanation of reference numerals in the attached figures:

[0046] 100. Fan; 10. Fan head; 11. Grille; 111. Cover connecting part; 112. Recess; 12. Blade; 20. Body; 21. Drive assembly; 211. Rotating shaft; 212. Support shaft; 213. Main drive component; 214. Oscillating drive component; 22. Connector; 221. Shaft hole; 222. Boss; 2221. Slot; 23. Cover; 231. Cover body; 232. Cover; 30. Grille support component; 31. Roller; 32. Rotating shaft; 40. Connector; X, First direction; Z, Second direction. Detailed Implementation

[0047] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0048] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0049] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0051] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0053] See Figures 1-5 The fan 100 provided in one embodiment of this application includes a fan head 10 and a body 20. The fan 100 of this utility model can be a floor fan or other types of fan 100, and there is no specific limitation.

[0054] The fan head 10 includes a guard 11 and blades 12, with the blades rotatably mounted within the guard 11. Specifically, the blades 12 include multiple sub-blades, which are spaced apart around a rotation axis. Optionally, the number of sub-blades can be three, four, or five. When the blades 12 rotate, they disturb the surrounding airflow, causing it to blow air forward. The guard 11 provides installation space for the blades 12 and also protects them from accidental injury during rotation. Typically, the guard 11 includes a front guard 11 and a rear guard 11, which are connected to each other to form a space for accommodating the blades 12.

[0055] The body 20 includes a drive assembly 21 and a connector 22. The drive assembly 21 has a rotating shaft 211 and a support shaft 212 extending in different directions. The rotating shaft 211 is connected to the blade 12 for driving the blade 12 to rotate. The support shaft 212 of the drive assembly 21 passes through the connector 22. The drive assembly 21 is fixedly connected to the mesh cover 11 and can rotate relative to the connector 22 around the support shaft 212.

[0056] Specifically, in this embodiment, the rotation of the rotating shaft 211 of the drive assembly 21 enables the blades 12 to rotate, while the rotation of the support shaft 212 enables the drive assembly 21 to rotate relative to the connector 22. Since the drive assembly 21 is fixedly connected to the mesh cover 11, the drive assembly 21 can drive the entire fan head 10 to rotate around the support shaft 212 relative to the connector 22. This rotation enables the fan head 10 to oscillate.

[0057] Among them, the connector 22 is provided with at least one mesh cover support 30 on the side facing the mesh cover, and the mesh cover support 30 abuts against the mesh cover 11 to support the mesh cover 11.

[0058] Therefore, the fan 100 of this application embodiment, in addition to enabling the drive assembly 21 and the mesh cover 11 to be fixed to form a support for the mesh cover 11, can also support the mesh cover 11 through the mesh cover support member 30 connected to the connector 22, realizing dual-point support and improving the overall rigidity of the mesh cover 11. Thus, it can effectively improve the shaking phenomenon of the mesh cover 11 during operation, significantly improve the overall operational stability of the fan 100, reduce the problem of structural loosening caused by noise and resonance, improve the user experience and extend the service life of the fan 100.

[0059] See Figure 3 Specifically, in the embodiments of this application, the drive assembly 21 of the body 20 includes a main drive component 213 and an oscillating drive component 214, with the main drive component 213 connected to the oscillating drive component 214. The main drive component 213 has a rotating shaft 211, and a support shaft 212 is fixedly connected to the main drive component 213 and is also drively connected to the oscillating drive component 214. Thus, when the main drive component 213 drives the rotating shaft 211 to rotate, the blades 12 can rotate. When the oscillating drive component 214 drives the support shaft 212 to rotate, since the support shaft 212 is fixedly connected to both the main drive component 213 and the oscillating drive component 214, the entire drive assembly 21 will rotate around the support shaft 212 to achieve the oscillating function of the fan head 10.

[0060] More specifically, the drive assembly 21 also includes a crank-connecting rod mechanism, through which the oscillating drive 214 is connected to the support shaft 212.

[0061] In the embodiments of this application, the fuselage 20 further includes a cover 23, a drive assembly 21 is disposed within the cover 23, and a rotating shaft 211 passes through the cover 23 and is connected to the blade 12 for transmission. The mesh cover 11 is fixedly connected to the cover 23, and the connector 22 is located on one side of the cover 23. Specifically, both the main drive component 213 and the oscillating drive component 214 can be fixed within the cover 23. Since the drive assembly 21 is located within the cover 23, it can protect the drive assembly 21.

[0062] Combination Figure 9 and Figure 10 Specifically, the housing 23 includes a body 231 and a cover 232. The body 231 is constructed as a shell structure with an opening on one side. The cover 232 covers the opening of the body 231. The cover 232 has a first through hole for the rotating shaft 211 to pass through. One end face of the main drive member 213 is fixedly connected to the inner side of the cover 232, specifically by screws. The outer side of the cover 232 is fixedly connected to the cover connecting part 111 of the mesh cover 11, specifically by snap-fit, for example, by a buckle. This makes the connection between the mesh cover 11 and the housing 23 more reliable.

[0063] Furthermore, the connector 22 is located on one side of the cover 23, and the cover 23 can rotate relative to the connector 22 around the support shaft 212, and the mesh cover support 30 is located on the side of the connector away from the cover 23.

[0064] Specifically, connector 22 is located vertically on one side of housing 23, specifically below housing 23. It can be understood that connector 22 provides vertical support for housing 23 and drive assembly 21.

[0065] Since one part of the mesh cover 11 is fixedly supported by the cover 23 on one side of the connector 22, and the other part of the mesh cover 11 is supported by the mesh cover support 30 on the side away from the cover 23, the two supports maintain a large distance apart. Therefore, the stability of the support is further improved, which makes the whole machine run more smoothly and the vibration phenomenon is further reduced.

[0066] In some embodiments, the connector 22 has a shaft hole 221 that mates with the support shaft 212, and the support shaft 212 is rotatably disposed within the shaft hole 221. By providing the shaft hole 221 to rotatably engage with the support shaft 212, the reliability of the rotation of the support shaft 212 can be improved.

[0067] In addition, to prevent the support shaft 212 from vibrating and shifting during movement and to reduce the vibration and wear of the support shaft 212, a bushing can be provided between the support shaft 212 and the shaft hole 221.

[0068] In embodiments of this application, the mesh support protrudes from the side of the connector facing the mesh to abut against the mesh and support it.

[0069] By setting the mesh cover support to protrude and abut against the mesh cover, the positional interference between the connector and the mesh cover can be reduced, and the mesh cover can be prevented from being unrestricted in its movement during the rotation of the connector.

[0070] See Figure 1 and Figure 3 In the embodiments of this application, the mesh support 30 is at least able to support the mesh 11 along the first direction X, wherein the first direction X is parallel to the rotation axis 211.

[0071] Specifically, the first direction X is Figure 1 The horizontal direction is shown.

[0072] Furthermore, the mesh support 30 can also support the mesh 11 along the second direction Z, which is parallel to the support axis 212.

[0073] Specifically, the second direction Z is Figure 1 The vertical direction is shown.

[0074] Since the mesh cover 11 is connected to the rotating shaft 211, and the rotating shaft 211 is connected to the support shaft 212 through the body of the drive mechanism, and the support shaft 212 is connected to the mesh cover 11 through the mesh cover support member 30 on the connector, the mesh cover 11, the rotating shaft 211, the support shaft 212, the connector and the mesh cover support member 30 form a closed loop. When the mesh cover support member 30 supports the mesh cover 11 simultaneously along the first direction X parallel to the rotating shaft 211 and the second direction Z parallel to the support shaft 212, this loop becomes a rectangular shape. Therefore, the support for the mesh cover 11 is more reliable, making the structure of the mesh cover 11 more stable, achieving smoother operation and less vibration of the whole machine.

[0075] See Figures 4-9 In some embodiments, the mesh cover support 30 is rotatable relative to the connector 22, and the rotation axis of the mesh cover support 30 is parallel to the axis of the support shaft 212.

[0076] Since the fan head 10's mesh cover 11 rotates relative to the connector 22 around the support shaft 212, and the mesh cover support 30 is mounted on the connector 22, if the mesh cover support 30 is fixed, when the mesh cover 11 rotates, the mesh cover 11 and the mesh cover support 30 will not only be in abutting relationship but also in a relative rotational relationship, which will affect the rotation of the mesh cover 11, i.e., the oscillation function of the fan head 10. Therefore, by setting the mesh cover support 30 to rotate relative to the connector 22, and with the rotation axis parallel to the rotation axis of the mesh cover 11, the mesh cover support 30 can rotate simultaneously with the mesh cover 11 when it rotates relative to the connector 22, thereby reducing the friction between the two. This ensures stable oscillation of the fan head 10 while also providing better support for the mesh cover 11.

[0077] In a specific embodiment of this application, the mesh support 30 includes a roller 31, which is rotatable relative to the connector.

[0078] The roller 31 has a simple structure and an annular rolling surface. Therefore, during the rotation of the mesh cover 11 relative to the connector 22, the annular rolling surface can abut against the mesh cover 11, making the force between the two uniform and improving the smoothness of the rotation and the support stability of the mesh cover 11.

[0079] Specifically, the connector 22 is provided with at least one boss assembly on the side facing the mesh cover 11. Each boss assembly includes two bosses 222 arranged opposite to each other. The number of boss assemblies corresponds to the number of mesh cover support members 30. The two ends of the rotating shaft 32 of each mesh cover support member 30 are rotatably connected to the two bosses 222 of the corresponding boss assembly.

[0080] Setting up two opposing bosses 222 not only provides a position for the connecting head 22 of the rotating shaft 32 of the mesh cover support 30, but also the space between the two bosses 222 can better protect the roller 31, improve the structural strength of the roller 31, and reduce the risk of damage to the roller 31.

[0081] Furthermore, each protrusion 222 has a recessed slot 2221 on the side facing the mesh cover 11, and the rotating shaft 32 of the mesh cover support 30 is engaged in the slot 2221.

[0082] By engaging the slot 2221 with the pivot 32 of the mesh cover support 30, the connection between the pivot 32 of the mesh cover support 30 and the boss 222 can be facilitated, and the engagement method is also reliable.

[0083] In embodiments of this application, the mesh support 30 also has elasticity.

[0084] Specifically, the mesh support 30 can be made directly of a material with a certain degree of elasticity, or an elastic layer made of an elastic material can be provided on the annular rolling surface. The elastic material can be rubber, silicone, or other elastic plastic materials.

[0085] In this way, on the one hand, the contact wear between the mesh cover 11 and the mesh cover support 30 can be reduced during the rotation of the relative connector 22, and on the other hand, the shaking between the mesh cover 11 and the mesh cover support 30 can be appropriately buffered.

[0086] In some embodiments, the connector 22 has a central plane passing through the axis of the support shaft 212, and when there is one mesh cover support 30, the axis of rotation of the mesh cover support 30 is located on the central plane. In other embodiments, when there are at least two mesh cover supports 30 and the number of mesh cover supports 30 is odd, the axis of rotation of at least one mesh cover support 30 is located on the central plane, and the remaining mesh cover supports 30 are symmetrically arranged relative to the central plane. In still other embodiments, when the number of mesh cover supports 30 is even, all mesh cover supports 30 are symmetrically arranged relative to the central plane.

[0087] The center plane of connector 22 referred to here is the center plane in the vertical direction, that is, parallel to the second direction Z. Since the fan head 10 rotates about the support shaft 212 relative to connector 22, this center plane also coincides with the rotation center plane of the fan head 10, which passes through the center of the maximum rotation angle of the fan head 10.

[0088] When the rotation axis of the mesh cover support 30 is located on the center plane, the mesh cover 11 can always rotate around the rotation axis of the mesh cover support 30, reducing the unstable contact between the mesh cover support 30 and the mesh cover 11. When the mesh cover support 30 is symmetrically arranged relative to the center plane, the fan head 10 can still maintain stable support for the mesh cover 11 when it rotates to the side relative to the connector 22.

[0089] In the embodiments of this application, the mesh cover support member 30 includes a plurality of members, all of which are located on the side of the connector 22 facing the mesh cover 11, and the plurality of mesh cover support members 30 are spaced apart from each other around the support shaft 212.

[0090] In this way, it can be ensured that at least one mesh cover support 30 always supports the mesh cover 11 as the mesh cover 11 rotates relative to the connector 22 around the support shaft 212, thereby improving the reliability of the support.

[0091] For example, the mesh support member 30 may include at least three, one of which has its center line located on the center plane of the connector 22, and the remaining mesh support members 30 are symmetrically arranged relative to the center plane.

[0092] When the oscillation angle of the fan head 10 is large, the number of mesh cover support members 30 can include at least five, of which the rotation axis of one mesh cover support member 30 is located on the center plane of the connector 22, and the other four mesh cover support members 30 are symmetrically arranged relative to the center plane.

[0093] In other embodiments, the number of mesh cover supports 30 may also be two, with the two mesh cover supports 30 symmetrically arranged relative to the center face of the connector 22.

[0094] In addition, multiple mesh support members 30 rotate on the same plane.

[0095] In other words, the various mesh cover support members 30 are not spaced vertically in the direction parallel to the axis of the support shaft 212, but are set on the same plane perpendicular to the axis of the support shaft 212. This helps to improve the stability of the force on the mesh cover 11 during rotation and further reduce the shaking phenomenon of the mesh cover 11.

[0096] See Figure 10 and Figure 11 In some embodiments, the mesh cover 11 has a support fitting part on the side facing the connector 22, and the support fitting part cooperates with one end of the mesh cover support 30.

[0097] By providing a support mating part on the mesh cover 11 that cooperates with the mesh cover support member 30, the support reliability of the mesh cover support member 30 on the mesh cover 11 can be improved.

[0098] Specifically, the side surface of the mesh cover 11 facing the mesh cover support 30 has a recess 112 that is recessed in the direction away from the mesh cover support 30. During the rotation of the fan head 10 relative to the connector 22 around the support shaft 212, the surface of the recess 112 facing the mesh cover support can remain abutting against the mesh cover support 30.

[0099] The recess 112 can constrain the abutment relationship between the mesh cover 11 and the mesh cover support 30, improve the reliability of the abutment, and thus improve the reliability of the support for the mesh cover 11 to improve the shaking phenomenon of the mesh cover 11 during operation.

[0100] In the embodiments of this application, the surface of the recess 112 facing the mesh support is a plane.

[0101] The plane referred to here should be a plane with a certain length and width.

[0102] The method of setting the plane and the mesh support 30 to abut against each other can improve the reliability of the abutment between the two.

[0103] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0104] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A fan, characterized by, include: A fan head includes a mesh cover and blades, wherein the blades are rotatably disposed within the mesh cover; The fuselage includes a drive assembly and a connector. The drive assembly is fixedly connected to the mesh cover. The rotation shaft of the drive assembly is driven by the blade and is used to drive the blade to rotate. The support shaft of the drive assembly passes through the connector. The drive assembly can rotate relative to the connector around the support shaft. The rotation shaft and the support shaft extend in different directions. The connector has at least one mesh cover support member on the side facing the mesh cover, and the mesh cover support member abuts against the mesh cover to support the mesh cover.

2. The fan of claim 1, wherein, The mesh cover support is rotatable relative to the connector, and the rotation axis of the mesh cover support is parallel to the axis of the support shaft.

3. The fan of claim 2, wherein, The mesh support includes rollers that are rotatable relative to the connector.

4. The fan of claim 2, wherein, The connector is provided with at least one boss assembly on the side facing the mesh cover. Each boss assembly includes two bosses arranged opposite each other. The number of boss assemblies corresponds to the number of mesh cover supports. The two ends of the rotating shaft of each mesh cover support are respectively rotatably connected to the two bosses of a corresponding boss assembly.

5. The fan according to claim 4, characterized in that, Each of the protrusions has a recessed slot on the side facing the mesh cover, and the rotating shaft of the mesh cover support is engaged in the slot.

6. The fan of claim 2, wherein, The connector has a central surface passing through the axis of the support shaft. When there is only one mesh cover support, the rotation axis of the mesh cover support is located on the central surface; or When the number of the mesh cover support members is at least two and the number of the mesh cover support members is odd, the rotation axis of at least one of the mesh cover support members is located on the central plane, and the remaining mesh cover support members are symmetrically arranged relative to the central plane; or When the number of the mesh cover support members is even, all the mesh cover support members are symmetrically arranged relative to the center plane.

7. A fan as claimed in any one of claims 2 to 6, wherein The mesh cover support includes multiple components, all of which are located on the side of the connector facing the mesh cover, and the multiple mesh cover supports are spaced apart from each other around the support axis.

8. The fan of claim 7, wherein, Multiple of the aforementioned mesh support members rotate on the same plane.

9. The fan of any of claims 2-6, wherein, The surface of the mesh cover facing the mesh cover support has a recessed portion that is recessed away from the mesh cover support. During the rotation of the fan head relative to the connector about the support shaft, the surface of the recessed portion facing the mesh cover support can remain abutting against the mesh cover support.

10. The fan of claim 9, wherein, The surface of the recess facing the mesh support is a plane.

11. The fan of claim 1, wherein, The mesh support is elastic.

12. The fan of claim 1, wherein, The fuselage also includes a cover, the drive assembly is disposed inside the cover, and the rotating shaft passes through the cover and is connected to the blade drive. The mesh cover is fixedly connected to the housing, the connector is located on one side of the housing, and the housing can rotate relative to the connector around the support shaft. The mesh cover support is located on the side of the connector away from the housing.

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