fan

Abstract

The application relates to a fan. The fan comprises a fan head, a machine body and a net cover supporting member. The fan head comprises a net cover and a blade. The blade is rotatably arranged in the net cover. The machine body comprises a driving assembly and a connecting head. The driving assembly is fixedly connected with the net cover. A rotating shaft of the driving assembly is in transmission connection with the blade, and is used for driving the blade to rotate. A supporting shaft of the driving assembly penetrates through the connecting head. The driving assembly can rotate relative to the connecting head around the supporting shaft. The rotating shaft and the supporting shaft extend in different directions. One end of the net cover supporting member is rotatably connected with the connecting head. The other end of the net cover supporting member protrudes from the connecting head and abuts against the net cover to support the net cover. The rotating axis of the net cover supporting member is parallel to or coincides with the axis of the supporting shaft. The fan realizes double-point support of the net cover, can obviously improve the overall rigidity of the net cover, can improve the resonance frequency of the fan to the high-speed stable rotation speed area of the driving assembly, can avoid the sensitive interval of the shaking of the low-speed area of the driving assembly, and can make the whole machine run more stably and reduce the shaking phenomenon.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy-saving household appliances, in particular to a fan. BACKGROUND

[0002] The fan is a commonly used energy-saving household appliance, which is usually composed of a mesh cover, a fan blade, a motor, an adjusting box and a machine body. However, the mesh cover of the fan is light in weight and poor in structural rigidity, and is excited by wind force and motor vibration during the operation of the fan, so that resonance and shaking phenomenon are easily generated. In particular, when the motor operates at a low speed, the whole machine is unstable in operation, and the shaking is particularly obvious. SUMMARY

[0003] Therefore, it is necessary to provide a fan aiming at the problem that the mesh cover of the existing fan is prone to resonance and shaking during operation.

[0004] In one aspect of the present application, a fan is provided, comprising:

[0005] A fan head comprising a mesh cover and a blade, the blade being rotatably arranged in the mesh cover;

[0006] A machine body comprising a driving assembly and a connecting head, the driving assembly being fixedly connected with the mesh cover, a rotating shaft of the driving assembly being in transmission connection with the blade for driving the blade to rotate, a supporting shaft of the driving assembly being arranged in the connecting head, the driving assembly being capable of rotating about the supporting shaft relative to the connecting head, the rotating shaft and the supporting shaft extending in different directions;

[0007] A mesh cover supporting member, one end of the mesh cover supporting member being rotatably connected with the connecting head, the other end of the mesh cover supporting member protruding out of the connecting head and abutting against the mesh cover to support the mesh cover;

[0008] The rotating axis of the mesh cover supporting member is parallel to or coincides with the axis of the supporting shaft.

[0009] The fan described above and the fan of the present application can not only support the mesh cover by fixing the driving assembly with the mesh cover, but also support the mesh cover by the mesh cover supporting member rotatably connected with the connecting head, so that double-point support is achieved. Therefore, the overall rigidity of the mesh cover can be significantly improved, the resonance frequency of the fan is increased to the high-speed stable rotation speed range of the driving assembly, the sensitive interval of the shaking of the driving assembly at a low speed is avoided, the whole machine is more stable in operation, and the shaking phenomenon is reduced.

[0010] In one embodiment, the connecting head has a shaft hole penetrating therethrough, the supporting shaft is arranged in the shaft hole from one end of the shaft hole, and the mesh cover supporting member protrudes into the shaft hole from the other end of the shaft hole opposite to the one end, so as to be rotatably connected with the connecting head.

[0011] On the one hand, due to the limited space between the mesh cover and the connecting head, it is difficult to arrange a stable and reliable support structure, therefore, one end of the mesh cover support member is protruded into the shaft hole from the other end opposite to the shaft hole, in a manner of rotationally connected with the connecting head, which can facilitate the arrangement of the mesh cover support member. On the other hand, after the mesh cover support member is protruded into the shaft hole of the connecting head, the rotating shaft at this end can be coaxially arranged with the support shaft, thereby improving the consistency of the mesh cover support member following the rotation of the fan head around the support shaft, and further improving the stability and reliability of the mesh cover support member in supporting the mesh cover during the fan head swinging process. In addition, due to the protrusion into the shaft hole, the exposed condition of the end connection of the mesh cover support member can be reduced, avoiding the influence of external environment or human interference on the connection, and improving the reliability of the connection.

[0012] In one of the embodiments, the end of the mesh cover support member protruding into the shaft hole is separated from the support shaft.

[0013] In this way, the vibration force, impact force and the like transmitted from the mesh cover to the connecting head through the mesh cover support member are no longer directly transmitted to the support shaft, reducing the impact of vibration on the support shaft and improving the reliability of the driving assembly. Moreover, the connecting head is usually made of a material such as plastic which has a lower strength than the support shaft, and the mesh cover support member is equivalent to a soft connection with the connecting head, so as to buffer as much vibration force, impact force and the like as possible and avoid damage.

[0014] In one of the embodiments, the end of the mesh cover support member protruding into the shaft hole is provided with a rotating part, and the shaft hole is provided with a rotating matching part, the rotating part is limited in the axial direction of the shaft hole by the matching part and is rotatable relative to the matching part.

[0015] By limiting the rotating part in the axial direction of the shaft hole by the matching part and making it rotatable relative to the matching part, the mesh cover support member can be reliably rotated relative to the connecting head, while avoiding the mesh cover support member from being separated from the shaft hole in the axial direction, thereby improving the support reliability of the mesh cover support member.

[0016] In one of the embodiments, the rotating part includes a clamping part and a rotating shaft part, the clamping part is arranged at one end of the rotating shaft part, the clamping part is clamped in the axial direction of the shaft hole by the matching part, and the rotating shaft part is rotatable relative to the matching part.

[0017] The clamping part and the matching part are clamped in a simple manner, which is also convenient for the rotating part to protrude into the shaft hole from the end of the shaft hole and cooperate with the matching part, and can improve the limiting reliability of the rotating part relative to the connecting head.

[0018] In one of the embodiments, the clamping part includes a plurality of elastic buckles, the plurality of elastic buckles are arranged at intervals around the axis of the rotating shaft part, and all the elastic buckles are clamped in the matching part.

[0019] The elastic buckle can be elastically deformed to facilitate the rotation part to enter the shaft hole from the end of the shaft hole and cooperate with the cooperation part, and under the action of elastic restoring force, the elastic buckle can restore the deformation and keep the axial limitation in the cooperation part, thereby improving the reliability of the limitation.

[0020] In one of the embodiments, the cooperation part includes a limiting hole and a rotating hole, the limiting hole has a larger hole diameter than the rotating hole, the limiting hole and the rotating hole are connected along the axial direction of the shaft hole to form a stepped hole, the limiting hole is closer to the support shaft, the clamping part is clamped along the axial direction of the shaft hole in the limiting hole, and the rotating shaft part is rotatably arranged in the rotating hole.

[0021] In this way, the limiting hole and the rotating hole with different hole diameters are arranged to realize the cooperation with the clamping part and the rotating shaft part of the mesh cover support, thereby simplifying the structure of the cooperation part and improving the cooperation reliability between the mesh cover support and the connecting head.

[0022] In one of the embodiments, the mesh cover support can support the mesh cover at least in the first direction and the second direction.

[0023] The first direction is parallel to the rotating shaft, and the second direction is parallel to the support shaft.

[0024] Since the mesh cover is connected with the rotating shaft, the rotating shaft is connected with the support shaft through the body of the driving assembly, the support shaft is rotatably connected with the connecting head, the connecting head is rotatably connected with the mesh cover support, and the mesh cover support is connected with the mesh cover, therefore, the mesh cover, the rotating shaft, the support shaft, the connecting head and the mesh cover support form a connection ring similar to a closed loop, when the mesh cover support supports the mesh cover in the first direction parallel to the rotating shaft and the second direction parallel to the support shaft, the connection ring becomes a substantially square and regular shape, therefore, the support of the mesh cover is more reliable, the structure of the mesh cover is more stable, and the resonance frequency is reliably improved to the high-speed stable rotation speed region of the driving assembly, thereby achieving the effect of more stable operation and smaller shaking of the whole machine.

[0025] In one of the embodiments, the mesh cover is provided with a support cooperation part on the side facing the fuselage, and the support cooperation part cooperates with one end of the mesh cover support.

[0026] The support cooperation part arranged on the mesh cover and cooperating with the mesh cover support can improve the support reliability of the mesh cover support to the mesh cover.

[0027] In one of the embodiments, one end of the mesh cover support is inserted into the support cooperation part along a third direction, and the third direction intersects with the direction in which the mesh cover support supports the mesh cover.

[0028] The insertion mode is simple, and can limit the mesh cover support in the first direction, thereby avoiding the mesh cover support from separating from the mesh cover and improving the support reliability.

[0029] In one embodiment, one of the mesh support member and the support mating part is provided with a plug strip, and the other is provided with a plug groove, and the plug strip and the plug groove are mated and plugged in.

[0030] The shape of the connector strip allows for faster and more accurate insertion into the connector slot, improving the ease of connection.

[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 facing away from the housing.

[0033] Because one part of the mesh cover is fixedly supported on one side of the connector by the cover, while the other part of the mesh cover is supported on the opposite side of the connector by the mesh cover support, 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 an exploded structural diagram of a portion of the fan structure 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 the structure of the mesh cover in the fan.

[0038] Figure 5 for Figure 4 A magnified schematic diagram of part B of the mesh shown.

[0039] Figure 6 for Figure 1 The diagram shows a structural schematic of the mesh support component in part of the fan's structure.

[0040] Figure 7 for Figure 6 A structural schematic diagram of the mesh support member from another perspective.

[0041] Figure 8 for Figure 1 Structure diagram of the cover in the partial structure of the fan.

[0042] Figure 9 For Figure 8 Structure diagram of the cover from another perspective.

[0043] Figure 10 For Figure 1 Structure diagram of the connecting head in the partial structure of the fan.

[0044] Figure 11 For Figure 10 Structure diagram of the connecting head from another perspective.

[0045] BRIEF DESCRIPTION OF THE DRAWINGS

[0046] 100, fan; 10, fan head; 11, mesh cover; 111, cover connecting part; 112, support matching part; 20, body; 21, driving assembly; 211, rotating shaft; 212, support shaft; 213, main driving piece; 214, head-shaking driving piece; 22, connecting head; 221, shaft hole; 2211, rotating matching part; 2211a, limiting hole; 2211b, rotating hole; 23, cover shell; 231, cover body; 232, cover; 30, mesh cover support; 31, rotating part; 311, clamping part; 3111, elastic buckle; 312, rotating shaft part; 32, plug-in part; X, first direction; Z, second direction. DETAILED DESCRIPTION

[0047] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below. In the following description, a large number of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0048] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0049] In addition, the terms "first", "second", and the like, if any, are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or identifying the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0050] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "under" the second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or it can only mean that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or it can only mean that the first feature is lower than the second feature in horizontal height.

[0052] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0053] Referring to Figures 1-5 An embodiment of the present application provides a fan 100, which includes a fan head 10 and a body 20. The fan 100 of the present application can be a floor fan, or other types of fan 100, which is not limited in particular.

[0054] The fan head 10 comprises a mesh cover 11 and a blade rotatably arranged in the mesh cover 11. Specifically, the blade comprises a plurality of sub-blades which are arranged at intervals around the rotation shaft. Optionally, the number of the sub-blades can be three, four or five. When the blade rotates, the airflow rotating at the periphery is disturbed, and the airflow is blown forward. The mesh cover 11 provides mounting conditions for the blade and protects the blade from being hurt in the rotating process. Generally, the mesh cover 11 comprises a front mesh cover and a rear mesh cover which are connected to each other to form a space for accommodating the blade. Currently, only the rear mesh cover is shown in the drawings. Figure 1

[0055] The body 20 comprises a driving assembly 21 and a connecting head 22. The driving assembly 21 has a rotating shaft 211 and a supporting shaft 212 which extend in different directions. The rotating shaft 211 is in transmission connection with the blade for driving the blade to rotate. The supporting shaft 212 of the driving assembly 21 penetrates the connecting head 22. The driving assembly 21 is fixedly connected with the mesh cover 11 and can rotate relative to the connecting head 22 about the supporting shaft 212.

[0056] Specifically, in the embodiment, the rotation of the rotating shaft 211 of the driving assembly 21 can drive the blade to rotate, and the rotation of the supporting shaft 212 can drive the driving assembly 21 to rotate relative to the connecting head 22. Since the driving assembly 21 is fixedly connected with the mesh cover 11, the driving assembly 21 can drive the entire fan head 10 to rotate relative to the connecting head 22 about the supporting shaft 212. The rotation can realize the swing function of the fan head 10.

[0057] In the embodiment, the fan 100 further comprises a mesh cover support 30. One end of the mesh cover support 30 is rotatably connected to the connecting head 22, and the other end of the mesh cover support 30 protrudes from the connecting head 22 and abuts against the mesh cover 11 to support the mesh cover 11. The rotation axis of the mesh cover support 30 is parallel to or coincides with the axis of the supporting shaft.

[0058] It can be understood that the mesh cover support 30 is rotatably connected to the connecting head 22. Therefore, when the fan head 10 rotates about the supporting shaft 212, the mesh cover support 30 can rotate with the entire fan head 10 about the rotation shaft which is parallel to or coincides with the axis of the supporting shaft 212. Therefore, when the mesh cover support 30 abuts against the mesh cover 11 to support the mesh cover 11, the mesh cover 11 can be supported not only when the fan head 10 does not swing, but also when the fan head 10 swings.

[0059] ​Therefore, the fan 100 of the embodiment of the present application can not only fix the driving assembly 21 and the mesh cover 11 to form support for the mesh cover 11, but also support the mesh cover 11 through the mesh cover support 30 connected with the connecting head 22, so that double-point support is achieved. Therefore, the overall rigidity of the mesh cover 11 can be significantly improved, the resonance frequency of the fan 100 is improved to the high-speed stable rotation speed range of the driving assembly 21, so that the sensitive interval of the driving assembly 21 in the low-speed region is avoided, the whole machine runs more smoothly, and the shaking phenomenon is reduced.

[0060] Referring to Figure 2 and Figure 3 Specifically, in the embodiment of the present application, the driving assembly 21 of the machine body 20 includes a main driving member 213 and a head driving member 214, and the main driving member 213 is connected with the head driving member 214. The main driving member 213 has a rotating shaft 211, a support shaft 212 is fixedly connected with the main driving member 213 and is in transmission connection with the head driving member 214. In this way, when the main driving member 213 drives the rotating shaft 211 to rotate, the fan blade can rotate, and when the head driving member 214 drives the support shaft 212 to rotate, the whole driving assembly 21 will rotate around the support shaft 212 to realize the head shaking function of the fan head 10.

[0061] More specifically, the driving assembly 21 further includes a crank linkage mechanism, and the head driving member 214 is in transmission connection with the support shaft 212 through the crank linkage mechanism.

[0062] In combination with Figure 1 In the embodiment of the present application, the machine body 20 further includes a cover shell 23, the driving assembly 21 is arranged in the cover shell 23, the rotating shaft 211 is arranged in the cover shell 23 and is in transmission connection with the blade, the mesh cover 11 is fixedly connected with the cover shell 23, and the connecting head 22 is located at one side of the cover shell 23. Specifically, the main driving member 213 and the head driving member 214 can be fixed in the cover shell 23. Since the driving assembly 21 is located in the cover shell 23, the driving assembly 21 can be protected.

[0063] In combination with Figure 8 and Figure 9 Specifically, the cover shell 23 includes a cover body 231 and a cover cap 232, the cover body 231 is configured as a shell structure with an opening at one side, and the cover cap 232 is arranged at the opening of the cover body 231. The cover cap 232 is provided with a first through hole for the rotating shaft 211 to pass through, one side end surface of the main driving member 213 is fixedly connected with the inner side surface of the cover cap 232, and the outer side surface of the cover cap 232 is fixedly connected with the cover cap connecting portion 111 of the mesh cover 11, specifically through clamping, for example, through buckling. In this way, the connection between the mesh cover 11 and the cover shell 23 is more reliable.

[0064] Further, the connecting head 22 is located at one side of the cover 23, and the cover 23 can rotate relative to the connecting head 22 around the support shaft 212, and the mesh cover support 30 is located at the side of the connecting head 22 away from the cover 23.

[0065] Specifically, the connecting head 22 is located at one side of the cover 23 in the vertical direction, and specifically below the cover 23. It can be understood that the connecting head 22 can provide vertical support for the cover 23 and the driving assembly 21.

[0066] Since one part of the mesh cover 11 is fixed and supported by the cover 23 at one side of the connecting head 22, and the other part of the mesh cover 11 is supported by the mesh cover support 30 at the other side of the connecting head 22, the two supports maintain a large interval distance, thus further improving the stability of the support, and further making the whole machine run more smoothly and the shaking phenomenon further reduced.

[0067] In combination Figure 10 and Figure 11 In some embodiments, the connecting head 22 has a shaft hole 221 matched with the support shaft 212, and the support shaft 212 is rotatably arranged in the shaft hole 221. By arranging the shaft hole 221 and the support shaft 212 in rotation matching, the reliability of the rotation of the support shaft 212 can be improved.

[0068] In addition, in order to prevent the support shaft 212 from vibrating and deviating during movement and reduce the vibration and wear of the support shaft 212, a shaft sleeve can also be arranged between the support shaft 212 and the shaft hole 221.

[0069] Further, the support shaft 212 is arranged in the shaft hole 221 from one end of the shaft hole 221, and the mesh cover support 30 protrudes into the shaft hole 221 from the other end of the shaft hole 221 opposite to the connecting head 22, so as to be rotationally connected with the connecting head 22.

[0070] On the one hand, since the space between the mesh cover 11 and the connecting head 22 is limited, it is difficult to arrange a stable and reliable support structure, therefore, the end of the mesh cover support 30 protrudes into the shaft hole 221 from the other end of the shaft hole 221 opposite to the connecting head 22, so as to be rotationally connected with the connecting head 22, which can facilitate the arrangement of the mesh cover support 30. On the other hand, after the mesh cover support 30 protrudes into the shaft hole 221 of the connecting head 22, the rotation shaft at this end can be arranged coaxially with the support shaft 212, thus improving the consistency of the mesh cover support 30 following the fan head 10 rotating around the support shaft 212, and further improving the stability and reliability of the mesh cover support 30 supporting the mesh cover 11 during the shaking process of the fan 100. In addition, since it protrudes into the shaft hole 221, the exposed condition of the end connection of the mesh cover support 30 can be reduced, avoiding the influence of external environment or human interference on the connection, and improving the reliability of the connection.

[0071] In other embodiments, the rotation connection between the mesh support 30 and the connecting head 22 can also be arranged away from the shaft hole 221.

[0072] Referring to Figure 3 , Figure 6 and Figure 7 , in particular, the end of the mesh support 30 protruding into the shaft hole 221 is separated from the support shaft 212.

[0073] The separation of the end of the mesh support 30 from the support shaft 212 means that there is no connection between the mesh support 30 and the support shaft 212, and the rotation between the two is independent of each other.

[0074] In this way, the vibration force, impact force, etc. transmitted by the mesh support 30 to the connecting head 22 is no longer directly transmitted to the support shaft 212, reducing the impact of vibration on the support shaft 212 and improving the reliability of the drive assembly 21. Moreover, the connecting head 22 is usually made of a material such as plastic that is less strong than the support shaft 212, and is equivalent to a soft connection between the mesh support 30, so as to buffer as much vibration force, impact force, etc. as possible and avoid damage.

[0075] In particular, in the embodiments of the present application, the end of the mesh support 30 protruding into the shaft hole 221 is provided with a rotating part 31, and the shaft hole 221 is provided with a rotating matching part 2211, the rotating part 31 is limited in the axial direction of the shaft hole 221 by the rotating matching part 2211 and is rotatable relative to the rotating matching part 2211.

[0076] By arranging the rotating part 31 to be limited in the axial direction of the shaft hole 221 by the rotating matching part 2211 and rotatable relative to the rotating matching part 2211, the mesh support 30 can be reliably rotated relative to the connecting head 22 while avoiding the mesh support 30 from being separated from the shaft hole 221 in the axial direction, thereby improving the support reliability of the mesh support 30.

[0077] Further, the rotating part 31 includes a clamping part 311 and a rotating shaft part 312, the clamping part 311 is arranged at one end of the rotating shaft part 312, the clamping part 311 is clamped to the rotating matching part 2211 in the axial direction of the shaft hole 221, and the rotating shaft part 312 is rotatable relative to the rotating matching part 2211.

[0078] The clamping part 311 and the rotating matching part 2211 are clamped in a simple manner, which is also convenient for the rotating part 31 to protrude from the end of the shaft hole 221 and cooperate with the rotating matching part 2211, and can improve the limiting reliability of the rotating part 31 relative to the connecting head 22.

[0079] Specifically, the clamping portion 311 comprises a plurality of elastic buckles 3111, which are arranged at intervals around the axis of the rotating shaft portion 312, and all the elastic buckles 3111 are clamped to the rotating fitting portion 2211.

[0080] The elastic buckle 3111 can be elastically deformed to facilitate the rotating portion 31 to enter the shaft hole 221 from the end of the shaft hole 221 and cooperate with the rotating fitting portion 2211, and under the action of elastic restoring force, the elastic buckle 3111 can restore the deformation and be axially limited in the rotating fitting portion 2211, so as to improve the reliability of the limiting.

[0081] In some embodiments, the rotating fitting portion 2211 comprises a limiting hole 2211a and a rotating hole 2211b, the hole diameter of the limiting hole 2211a is larger than that of the rotating hole 2211b, the limiting hole 2211a and the rotating hole 2211b are connected along the axial direction of the shaft hole 221 to form a stepped hole, and the limiting hole 2211a is arranged closer to the supporting shaft 212, the clamping portion 311 is clamped to the limiting hole 2211a along the axial direction of the shaft hole 221, and the rotating shaft portion 312 is rotatably arranged in the rotating hole 2211b.

[0082] In this way, by arranging the limiting hole 2211a and the rotating hole 2211b with different hole diameters, the cooperation of the clamping portion 311 and the rotating shaft portion 312 of the mesh cover support 30 is realized, the structure of the rotating fitting portion 2211 is simplified, and the cooperation reliability between the mesh cover support 30 and the connecting head 22 is improved.

[0083] Referring to Figures 1-5 In the embodiments of the present application, the mesh cover support 30 can support the mesh cover 11 at least along the first direction X and the second direction Z, wherein the first direction X is parallel to the rotating shaft 211, and the second direction Z is parallel to the supporting shaft 212.

[0084] Specifically, the first direction X is the horizontal direction as shown in Figure 2 , and the second direction Z is the vertical direction as shown in Figure 2 .

[0085] Since the mesh cover 11 is connected with the rotating shaft 211, the rotating shaft 211 is connected with the supporting shaft 212 through the body of the driving assembly 21, the supporting shaft 212 is rotatably connected with the connecting head 22, the connecting head 22 is rotatably connected with the mesh cover supporting piece 30, and the mesh cover supporting piece 30 is connected with the mesh cover 11, therefore, the mesh cover 11, the rotating shaft 211, the supporting shaft 212, the connecting head 22 and the mesh cover supporting piece 30 form a connection ring similar to a closed loop, when the mesh cover supporting piece 30 supports the mesh cover 11 along the first direction X parallel to the rotating shaft 211 and the second direction Z parallel to the supporting shaft 212 at the same time, the connection ring becomes a basically square and regular shape, therefore, the support for the mesh cover 11 is more reliable, the structure of the mesh cover 11 is more stable, and the resonance frequency is reliably improved to the high-speed stable rotation speed area of the driving assembly 21, so that the machine operation is more stable and the shaking is smaller.

[0086] In some embodiments, one side of the mesh cover 11 towards the machine body 20 is provided with a support matching part 112 matched with one end of the mesh cover supporting piece 30.

[0087] By providing the support matching part 112 matched with the mesh cover supporting piece 30 on the mesh cover 11, the support reliability of the mesh cover supporting piece 30 to the mesh cover 11 can be improved.

[0088] Specifically, one end of the mesh cover supporting piece 30 is inserted along a third direction with the support matching part 112, wherein the third direction intersects with the direction in which the mesh cover supporting piece 30 supports the mesh cover 11.

[0089] That is, the third direction intersects with the first direction X and the second direction Z. In the embodiment of the present application, the third direction is the direction perpendicular to the paper surface as shown in the figure. Figure 2

[0090] The insertion mode is simple, and can limit the mesh cover supporting piece 30 in the first direction X, so as to avoid the mesh cover supporting piece 30 from separating from the mesh cover 11 and separating from the mesh cover 11, and improve the support reliability.

[0091] In combination with Figure 6 and Figure 7 , more specifically, one end of the mesh cover supporting piece 30 is provided with an insertion part 32, and the insertion part 32 is inserted along the third direction with the support matching part 112.

[0092] One of the insertion part 32 and the support matching part 112 is provided with an insertion strip, and the other is provided with an insertion slot. The insertion strip and the insertion slot are matched and inserted.

[0093] The structure of the insertion strip can be more quickly and accurately inserted into the insertion slot, and the convenience of insertion is improved.

[0094] ​For example, the cross-sectional shape of the insertion strip is T-shaped, and the shape of the insertion slot is matched with the insertion strip. The two sides of the T-shaped insertion strip can be limitedly matched with the slot wall of the insertion slot in the first direction X, so as to further improve the support reliability of the mesh support 30 to the mesh 11. In other embodiments, the cross-sectional shape of the insertion strip can also be L-shaped.

[0095] In addition, in order to facilitate the insertion of the insertion strip, one end of the insertion strip is provided with an inclined guide-in portion, and the width dimension of the inclined guide-in portion in the second direction Z gradually decreases away from the other end of the insertion strip, so that a sharp end can be formed to facilitate insertion.

[0096] In the embodiments of the present application, the insertion part 32 is arranged on the mesh support 30, and the insertion slot is arranged on the mesh 11. Since the structure of the mesh support 30 is small, arranging the insertion part 32 on the mesh support 30 instead of arranging the insertion slot on the mesh support 30 can improve the structural strength of the mesh support 30, and further improve the support reliability.

[0097] In the embodiments of the present application, the insertion part 32 and the support matching part 112 abut in the third direction to limit. In order to avoid that the insertion part 32 and the support matching part 112 cannot be inserted in place when they are inserted in the third direction, the position relationship between them can be limited in the third direction to determine the position relationship between them.

[0098] Specifically, the bottom wall of the insertion slot in the third direction abuts against the insertion strip to limit.

[0099] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0100] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of the patent of the present application should be subject to the appended claims.

Claims

1. A fan, characterized in that, include: A fan head, including 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. A mesh cover support member is provided, wherein the connector has a through shaft hole, the support shaft passes through the shaft hole from one end, and the mesh cover support member protrudes into the shaft hole from the opposite end to be rotatably connected to the connector. One end of the mesh cover support member protruding into the shaft hole is separate from the support shaft, and the other end of the mesh cover support member protrudes from the connector and abuts against the mesh cover to support it. The rotation axis of the mesh cover support member is parallel to or coincides with the axis of the support shaft. The mesh cover support has a rotating part at one end protruding into the shaft hole, and a rotating mating part is provided inside the shaft hole. The rotating part includes a snap-fit ​​part and a rotating shaft part. The snap-fit ​​part is located at one end of the rotating shaft part and includes multiple elastic buckles. The multiple elastic buckles are spaced apart from each other around the axis of the rotating shaft part, and all the elastic buckles are snapped into the mating part along the axial direction of the shaft hole. The rotating shaft part is rotatable relative to the rotating mating part; or The mesh cover has a supporting mating part on the side facing the machine body. One end of the mesh cover support is inserted into the supporting mating part along a third direction. One of the mesh cover support and the supporting mating part is provided with a connecting strip, and the other is provided with a connecting groove. The connecting strip and the connecting groove are engaged and inserted. The third direction intersects with the direction in which the mesh cover support supports the mesh cover.

2. The fan according to claim 1, characterized in that, The mating part includes a limiting hole and a rotating hole. The diameter of the limiting hole is larger than the diameter of the rotating hole. The limiting hole and the rotating hole are connected along the axial direction of the shaft hole to form a stepped hole. The limiting hole is located closer to the support shaft. The snap-fit ​​part snaps into the limiting hole along the axial direction of the shaft hole. The rotating shaft part is rotatably disposed in the rotating hole.

3. The fan according to claim 1 or 2, characterized in that, The mesh support member is capable of supporting the mesh at least along the first direction and the second direction; Wherein, the first direction is parallel to the rotation axis, and the second direction is parallel to the support axis.

4. The fan according to claim 1 or 2, characterized in that, 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 facing away from the housing.

5. The fan according to claim 1 or 2, characterized in that, The cross-sectional shape of the connector strip is T-shaped, and the shape of the connector groove is adapted to the shape of the connector strip.

6. The fan according to claim 1 or 2, characterized in that, One end of the connector strip is provided with an inclined guide portion, and the width of the inclined guide portion gradually decreases towards the other end away from the connector strip along the second direction; the second direction is parallel to the support shaft.

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