Fan assembly and air blowing device

Abstract

The utility model discloses a fan assembly and a blowing device, and relates to the technical field of blowing equipment, the fan assembly comprises a driving motor, fan blades and a lock nut, the driving motor is provided with a driving shaft; the fan blade comprises a mounting main body and a blade body, the blade body is connected to the peripheral side of the mounting main body, the mounting main body is provided with a mounting hole, the driving shaft penetrates through the mounting hole, and the mounting main body is connected with the driving shaft; the lock nut is arranged on the side, back to the driving motor, of the fan blade and connected with the driving shaft in a magnetic attraction fit mode, and the lock nut limits the mounting body in the axial direction of the driving shaft. According to the technical scheme, the assembling structure of the fan assembly is improved, and assembling convenience and practicability of the fan assembly are improved.

Description

Technical Field

[0001] This utility model relates to the field of blower equipment technology, and in particular to a blower assembly and blower device. Background Technology

[0002] In related technologies, the fan assembly can be connected to the fan drive shaft using a lock nut, so that the lock nut can press and limit the end of the fan blade facing away from the fan, ensuring that the fan drives the fan blade to rotate stably.

[0003] However, the lock nut and drive shaft are mostly connected by a threaded connection, and the lock nut needs to be tightened onto the drive shaft in the opposite direction to the rotation of the fan blades, which makes the installation of the fan assembly more complicated and reduces the ease of assembly of the fan assembly. Utility Model Content

[0004] The main purpose of this utility model is to propose a fan assembly and a blowing device, which aims to improve the assembly structure of the fan assembly and enhance its assembly convenience and practicality.

[0005] To achieve the above objectives, the present invention proposes a fan assembly comprising a drive motor, a fan blade, and a lock nut. The drive motor is provided with a drive shaft. The fan blade includes a mounting body and blades, the blades being connected to the periphery of the mounting body. The mounting body is provided with a mounting hole, the drive shaft passing through the mounting hole, and the mounting body being connected to the drive shaft. The lock nut is located on the side of the fan blade facing away from the drive motor and is magnetically connected to the drive shaft. The lock nut limits the mounting body along the axial direction of the drive shaft.

[0006] In one embodiment, the lock nut is provided with a first magnetic element, which is magnetically connected to the drive shaft.

[0007] In one embodiment, the lock nut has a receiving groove on its axial surface of the drive shaft, and the first magnetic element is disposed in the receiving groove.

[0008] In one embodiment, the receiving groove is located on the side of the lock nut facing the fan blade, and the end of the drive shaft extends out of the mounting hole and is inserted into the receiving groove.

[0009] In one embodiment, the first magnetic element includes a shaft-end magnetic element and a shaft-side magnetic element. The shaft-end magnetic element is disposed on the bottom wall of the receiving groove and is disposed toward the end face of the drive shaft. The shaft-side magnetic element is disposed on the side wall of the receiving groove and is disposed toward the periphery of the drive shaft.

[0010] In one embodiment, the lock nut further includes a fastener connecting the first magnetic element and the lock nut. And / or, the lock nut further includes an adhesive element that bonds the first magnetic element to the lock nut.

[0011] In one embodiment, a second magnetic element is connected to the end of the drive shaft, and the second magnetic element is magnetically connected to the lock nut.

[0012] In one embodiment, the end of the lock nut facing the fan blade is provided with one of a locking protrusion or a locking groove, and the side of the mounting body facing the lock nut is provided with the other of a locking protrusion or a locking groove, wherein the locking protrusion and the locking groove engage to engage.

[0013] In one embodiment, the drive shaft has a protruding structure on its periphery, and the mounting body has a limiting groove at one end facing away from the lock nut. The protruding structure and the limiting groove are engaged and snapped together.

[0014] This utility model also proposes a blower device, which includes a housing and a blower assembly, wherein the blower assembly is the blower assembly described above, and the blower assembly is connected to the housing.

[0015] The technical solution of this utility model assembles the fan assembly by using a magnetic connection between the lock nut and the drive shaft. The magnetic attraction between the lock nut and the drive shaft can axially limit the installation body of the fan blade, ensuring the stable assembly of the fan assembly. Furthermore, using a magnetic connection between the lock nut and the drive shaft allows for easier disassembly and assembly of the lock nut in the fan assembly. It also reduces the need to machine and set up mutually cooperating assembly structures on the lock nut and the drive shaft, thereby reducing the manufacturing and processing difficulty of the fan assembly and effectively improving the production and assembly convenience and practicality of the fan assembly. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A cross-sectional view of an embodiment of the fan assembly provided by this utility model;

[0018] Figure 2 for Figure 1 A partial enlarged view of the first embodiment at point A in the middle;

[0019] Figure 3 for Figure 1 A partial enlarged view of the second embodiment at point A in the middle;

[0020] Figure 4 for Figure 1 A partial enlarged view of the third embodiment at point A in the middle;

[0021] Figure 5 An exploded view of an embodiment of the fan assembly provided by this utility model;

[0022] Figure 6 An exploded view of another embodiment of the fan assembly provided by this utility model;

[0023] Figure 7 A schematic diagram of the structure of the fan blade and locking nut of the fan assembly provided by this utility model;

[0024] Figure 8 for Figure 7 An exploded view of the structure of an embodiment of the fan blade and lock nut.

[0025] Explanation of icon numbers:

[0026] 100. Fan assembly; 10. Drive motor; 11. Drive shaft; 111. Second magnetic component; 113. Protruding structure; 30. Fan blade; 31. Mounting body; 311. Mounting hole; 313. Limiting groove; 33. Blade; 50. Lock nut; 51. First magnetic component; 511. Shaft end magnetic component; 513. Shaft side magnetic component; 53. Receiving groove.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] In related technologies, fan assemblies can be connected to the fan's drive shaft using a lock nut, allowing the lock nut to press and limit the end of the fan blade facing away from the fan, ensuring stable rotation of the fan blade. However, lock nuts and drive shafts are mostly connected by a threaded connection, and the lock nut needs to be tightened onto the drive shaft in the opposite direction to the fan blade's rotation, making the installation of the fan assembly relatively complex and reducing its ease of assembly. To address the above problems, this utility model proposes a fan assembly 100.

[0032] Please see Figures 1 to 5 In one embodiment of this utility model, the fan assembly 100 includes a drive motor 10, a fan blade 30, and a lock nut 50. The drive motor 10 is provided with a drive shaft 11. The fan blade 30 includes a mounting body 31 and blades 33. The blades 33 are connected to the periphery of the mounting body 31. The mounting body 31 is provided with a mounting hole 311. The drive shaft 11 passes through the mounting hole 311 and is connected to the drive shaft 11. The lock nut 50 is located on the side of the fan blade 30 facing away from the drive motor 10 and is magnetically connected to the drive shaft 11. The lock nut 50 limits the mounting body 31 along the axial direction of the drive shaft 11.

[0033] In this application, the blower device may include, but is not limited to, floor fans, table fans, cooling fans, etc. The drive motor 10 of the fan assembly 100 drives the fan blades 30 to rotate. Under the turbulent effect of the rotation of the fan blades 30, the air can be formed into an airflow with a certain flow rate and flow, so as to realize the stable blowing operation of the blower device.

[0034] The fan blade 30 can be arranged with a number of blades 33 at intervals around the periphery of the mounting body 31. The mounting body 31 can be arranged with a block or cylindrical hub structure. The number of blades 33 of the fan blade 30 can be set according to the air outlet effect required by the fan assembly 100. This application does not limit the number of blades 33 of the fan blade 30. By providing a mounting hole 311 in the central area of ​​the mounting body 31, the drive fan can pass the drive shaft 11 through the mounting hole 311. The inner wall of the mounting hole 311 can be press-fitted with the drive shaft 11. Alternatively, a protrusion can be provided on the periphery of the drive shaft 11 to abut one end of the mounting body 31. Or, a portion of the shaft section of the mounting body 31 and the drive shaft 11 can be assembled using a pin and pin hole fitting structure. This allows the mounting body 31 to be limited and mounted on the drive shaft 11 when the drive shaft 11 passes through the mounting hole 311. The fitting connection between the mounting body 31 and the drive shaft 11 enables the drive motor 10 to stably drive the fan blade 30 to rotate via the drive shaft 11.

[0035] The lock nut 50 can be a block, cover, sleeve or other structure with a cross-sectional area larger than that of the mounting hole 311. By using the lock nut 50 to magnetically connect with the drive shaft 11 on the side of the fan blade 30 facing away from the drive motor 10, the fan blade 30 can be restricted from disengaging from the drive shaft 11 in a direction away from the drive motor 10 under the action of the lock nut 50, thereby limiting the fan blade 30 along the axial direction of the drive shaft 11 and ensuring the stable assembly of the fan assembly 100. The lock nut 50 can be equipped with a magnetic structure such as a magnet. In this case, the drive shaft 11 can be made of magnetically attractive ferrous or iron alloy materials, or a magnetic structure can be provided at the end of the drive shaft 11, with the magnetic structure at the end of the drive shaft 11 having opposite magnetism to the magnetic structure in the lock nut 50, thus ensuring the magnetic connection between the lock nut 50 and the drive shaft 11. Alternatively, a magnetic structure such as a magnet can be provided at the end of the drive shaft 11. In this case, the lock nut 50 can be made entirely of magnetically attractive ferrous or iron alloy materials, or a mating part made of magnetically attractive ferrous or iron alloy materials can be provided in the lock nut 50, with the mating part located in the central area of ​​the lock nut 50, thus ensuring the magnetic connection between the lock nut 50 and the magnetic structure. Alternatively, the drive shaft 11 can pass through the entire mounting hole 311, allowing the end of the drive shaft 11 facing away from the drive motor 10 to extend into the side of the fan blade 30 facing away from the drive motor 10. In this case, the lock nut 50 can be designed with a collar or sleeve structure, allowing it to be fitted onto the end of the drive shaft 11, and the magnetic connection between the lock nut 50 and the drive shaft 11 to achieve axial contact and limiting of the fan blade 30. Alternatively, the end face of the drive shaft 11 facing away from the drive motor 10 can be flush with the side of the mounting body 31 of the fan blade 30 facing away from the drive motor 10. In this case, the lock nut 50 can be fitted onto the side of the fan blade 30 facing away from the drive motor 10. The locking nut 50 adopts a block structure so that it can be magnetically connected to the drive shaft 11 and fit against and limit the fan blade 30. Alternatively, the end of the drive shaft 11 facing away from the drive motor 10 can be accommodated in the mounting hole 311. In this case, the locking nut 50 can have a protruding structure 113 that can extend into the mounting hole 311. The locking nut 50 uses the protruding structure 113 to magnetically engage with the drive shaft 11, so that the locking nut 50 can be inserted into the mounting hole 311 and magnetically engaged with the drive shaft 11, thereby achieving axial limiting of the fan blade 30 by the locking nut 50. Of course, there are many other ways to magnetically connect the locking nut 50 and the drive shaft 11 and set up the structure. This application does not limit these, as long as the locking nut 50 is magnetically connected to the drive shaft 11 on the side of the fan blade 30 facing away from the drive motor 10 and axially limits the mounting body 31 of the fan blade 30.

[0036] Therefore, the technical solution of this utility model, by assembling the lock nut 50 of the fan assembly 100 and the drive shaft 11 through a magnetic connection, can utilize the magnetic attraction between the lock nut 50 and the drive shaft 11 to axially limit the mounting body 31 of the fan blade 30, ensuring the stable assembly of the fan assembly 100. Furthermore, assembling the lock nut 50 and the drive shaft 11 through a magnetic connection allows for a simpler disassembly and assembly method for the lock nut 50 within the fan assembly 100. At the same time, it reduces the need to machine and set mutually cooperating assembly structures on the lock nut 50 and the drive shaft 11, thereby reducing the manufacturing and processing difficulty of the fan assembly 100 and effectively improving the production and assembly convenience and practicality of the fan assembly 100.

[0037] Reference Figure 2 and Figure 3 In one embodiment of the present invention, the lock nut 50 is provided with a first magnetic element 51, which is magnetically connected to the drive shaft 11.

[0038] In this embodiment, by providing a first magnetic element 51 with a certain magnetism inside the lock nut 50, the first magnetic element 51 can be positioned near or close to the drive shaft 11. At this time, the drive shaft 11 can be made of a magnetically adsorbable metal material, or a second magnetic element 111 with the opposite magnetism to the first magnetic element 51 can be provided on the drive shaft 11, so that the first magnetic element 51 and the drive shaft 11 can be magnetically attracted to each other, thereby achieving a stable magnetic connection between the lock nut 50 and the drive shaft 11, ensuring the axial limiting effect of the lock nut 50 on the fan blade 30, and further improving the structural stability and reliability of the fan assembly 100.

[0039] The lock nut 50 can be provided with a receiving groove 53 for accommodating the first magnetic component 51, so that the first magnetic component 51 is interference-fitted into the receiving groove 53 to achieve a stable connection between the first magnetic component 51 and the lock nut 50. This helps to reduce the number of accessories in the fan assembly 100 and makes the assembly of the fan assembly 100 more convenient. Alternatively, the first magnetic component 51 can be glued and fixed to the lock nut 50 using adhesive, which allows for a more convenient manufacturing process for the lock nut 50 and improves the assembly convenience of the fan assembly 100. Alternatively, the first magnetic component 51 can be fastened to the lock nut 50 using screws, bolts, or other fasteners, which helps to achieve a stable connection between the first magnetic component 51 and the lock nut 50 under the action of the fasteners. The more stable connection of the nut 50 effectively prevents the first magnetic component 51 from detaching from the nut 50, ensuring the stable axial positioning of the fan blade 30 by the nut 50. Alternatively, when the nut 50 is made of plastic, the first magnetic component 51 can be integrally injection molded into the nut 50, which facilitates the overall production and processing of the nut 50, making the assembly of the fan assembly 100 more convenient. Alternatively, a cavity corresponding to the size of the first magnetic component 51 can be provided within the nut 50, and an opening communicating with this cavity can be provided on the front of the nut 50, allowing the first magnetic component 51 to be pressed into the cavity of the nut 50 through the opening, achieving a stable installation of the first magnetic component 51 on the nut 50. There are many other ways to connect and assemble the first magnetic component 51 on the nut 50, and this application does not limit this, as long as the stable installation of the first magnetic component 51 within the nut 50 is guaranteed.

[0040] Reference Figure 2 and Figure 3 In one embodiment of the present invention, the lock nut 50 has a receiving groove 53 on the axial surface of the drive shaft 11, and the first magnetic element 51 is disposed in the receiving groove 53.

[0041] In this embodiment, by creating a receiving groove 53 on the surface of the lock nut 50, the first magnetic component 51 can be installed within the receiving groove 53. This allows the receiving groove 53 to provide a certain degree of restraint for the first magnetic component 51, better preventing it from detaching from or shifting from the lock nut 50. This ensures a stable assembly of the first magnetic component 51 on the lock nut 50, further improving the structural stability and reliability of the fan assembly 100. Simultaneously, the receiving groove 53 prevents the first magnetic component 51 from protruding from the surface of the lock nut 50, allowing the lock nut 50 to have better structural flatness and aesthetics.

[0042] The lock nut 50 can have the receiving groove 53 provided on the side facing the drive motor 10, so that the first magnetic component 51 can better contact and magnetically attract with the drive shaft 11, ensuring the stable magnetic attraction between the first magnetic component 51 and the drive shaft 11, and further improving the stability and reliability of the magnetic connection between the lock nut 50 and the drive shaft 11; or, the lock nut 50 can have the receiving groove 53 provided on the side facing away from the fan blade 30, and the first magnetic component 51 can magnetically attract the end of the drive shaft 11 at intervals along the bottom wall of the receiving groove 53. In this case, the first magnetic component 51 can be designed with a strong magnetic structure to ensure the stable magnetic attraction between the first magnetic component 51 and the drive shaft 11. By housing the first magnetic component 51 on the side of the lock nut 50 facing away from the fan blade 30, the possibility of the first magnetic component 51 detaching from the lock nut 50 due to tight magnetic attraction between the first magnetic component 51 and the drive shaft 11 can be avoided, ensuring the overall structural stability of the lock nut 50 and further improving the practicality and reliability of the fan assembly 100.

[0043] Furthermore, the lock nut 50 can be configured so that the dimensions of the receiving groove 53 correspond to the dimensions of the first magnetic component 51, thereby reducing the fit clearance between the first magnetic component 51 and the inner wall of the receiving groove 53. This allows the first magnetic component 51 to be installed into the receiving groove 53 via an interference fit, achieving a secure assembly between the first magnetic component 51 and the lock nut 50. By using an interference fit of the first magnetic component 51 onto the lock nut 50, the number of assembly parts of the lock nut 50 can be significantly reduced, enabling more convenient manufacturing processes for the lock nut 50 and further improving the ease of assembly and disassembly of the fan assembly 100 and its practicality.

[0044] Reference Figure 2 and Figure 3 In one embodiment of the present invention, the receiving groove 53 is provided on the side of the lock nut 50 facing the fan blade 30, and the end of the drive shaft 11 extends out of the mounting hole 311 and is inserted into the receiving groove 53.

[0045] In this embodiment, by setting the receiving groove 53 on the side of the lock nut 50 facing the fan blade 30, the receiving groove 53 can be extended a certain length along the axial direction of the drive shaft 11. This allows the end of the drive shaft 11 to extend out of the mounting hole 311 and be inserted into the receiving groove 53. This allows the lock nut 50 to be sleeved and installed on the end of the drive shaft 11, achieving mutual cooperation and limiting between the lock nut 50 and the drive shaft 11. This improves the connection stability between the lock nut 50 and the drive shaft 11, prevents the lock nut 50 from detaching from the drive shaft 11 under gravity, and ensures a more stable and reliable axial limiting effect of the lock nut 50 on the fan blade 30. This further improves the structural stability and reliability of the fan assembly 100.

[0046] The lock nut 50 can be configured such that the width of the receiving groove 53 corresponds to the outer diameter of the drive shaft 11, so that the drive shaft 11 can also be connected to the lock nut 50 with an interference fit, thereby further improving the connection stability and reliability between the lock nut 50 and the drive shaft 11.

[0047] Reference Figure 2 In one embodiment of the present invention, the first magnetic element 51 includes a shaft end magnetic element 511, which is disposed on the bottom wall of the receiving groove 53 and is disposed toward the end face of the drive shaft 11.

[0048] In this embodiment, the first magnetic component 51 may include a shaft end magnetic component 511. The shaft end magnetic component 511 can be installed on the bottom wall of the receiving groove 53 so that the shaft end magnetic component 511 faces the end face of the drive shaft 11 and magnetically attracts the drive shaft 11. The drive shaft 11 can be provided with a magnet at its end that has the opposite magnetism to the shaft end magnetic component 511, or the end of the drive shaft 11 or the entire drive shaft 11 can be made of a magnetically attractive material. This achieves stable assembly between the lock nut 50 and the drive shaft 11, which helps to better prevent the lock nut 50 from detaching from the drive shaft 11, ensures a more stable and reliable axial limiting effect of the lock nut 50 on the fan blade 30, and further improves the structural reliability and stability of the fan assembly 100.

[0049] In addition, in one embodiment of the present invention, the first magnetic element 51 includes an axial magnetic element 513, which is disposed on the sidewall of the receiving groove 53 and is arranged toward the periphery of the drive shaft 11.

[0050] In this embodiment, the first magnetic component 51 can be provided with an axial magnetic component 513 on the side wall of the receiving groove 53, so that the axial magnetic component 513 is directly facing the circumference of the drive shaft 11 and magnetically attracts the drive shaft 11. At this time, a magnet with opposite magnetism or a magnetically attractable material can be provided at the position opposite to the axial magnetic component 513 on the circumference of the drive shaft 11, or the drive shaft 11 can be made entirely of a magnetically attractable material, so that the lock nut 50 can be magnetically connected to the drive shaft 11 by means of the axial magnetic component 513, so as to achieve stable assembly of the lock nut 50 and the drive shaft 11. This helps to better prevent the lock nut 50 from detaching from the drive shaft 11, and ensures that the lock nut 50 provides a more stable and reliable axial limiting effect on the fan blade 30, thereby further improving the structural reliability and stability of the fan assembly 100.

[0051] Or, refer to Figure 3In some embodiments, the first magnetic component 51 may include a shaft-end magnetic component 511 and a shaft-side magnetic component 513. The shaft-end magnetic component 511 can be installed on the bottom wall of the receiving groove 53, so that the shaft-end magnetic component 511 faces the end face of the drive shaft 11 and magnetically attracts the drive shaft 11. The shaft-side magnetic component 513 can be installed on the side wall of the receiving groove 53, so that the shaft-side magnetic component 513 faces the periphery of the drive shaft 11 and magnetically attracts the drive shaft 11. This allows the lock nut 50 to simultaneously attract the shaft end and periphery of the drive shaft 11 using the first magnetic component 51. Thus, with the cooperation of the shaft-end magnetic component 511 and the shaft-side magnetic component 513, a more stable assembly effect between the lock nut 50 and the drive shaft 11 can be achieved. This helps to better prevent the lock nut 50 from detaching from the drive shaft 11, ensuring a more stable and reliable axial limiting effect of the lock nut 50 on the fan blade 30, and further improving the structural reliability and stability of the fan assembly 100.

[0052] Reference Figure 4 In one embodiment of the present invention, a second magnetic element 111 is connected to the end of the drive shaft 11, and the second magnetic element 111 is magnetically connected to the lock nut 50.

[0053] In this embodiment, the fan assembly 100 can have a second magnetic element 111 installed at the end of the drive shaft 11 facing away from the drive motor 10. The second magnetic element 111 can be a magnet or the like. In this case, the lock nut 50 can be made entirely of a magnetically attractive metal material so that the drive shaft 11 can achieve a stable magnetic connection with the lock nut 50 using the second magnetic element 111. Alternatively, a magnetically attractive metal structure can be provided in the part of the lock nut 50 opposite to the second magnetic element 111 of the drive shaft 11 to ensure a stable magnetic assembly between the lock nut 50 and the second magnetic element 111. Or, a first magnetic element 51 with the opposite magnetic properties to the second magnetic element 111 can be provided in the lock nut 50, and the attraction between the opposite magnetic elements of the first magnetic element 51 and the second magnetic element 111 can achieve a more stable connection between the lock nut 50 and the drive shaft 11. Of course, the lock nut 50 can also be used in other structural ways to magnetically attract the second magnetic component 111 of the drive shaft 11. This application does not limit the magnetic attraction method between the lock nut 50 and the second magnetic component 111.

[0054] The second magnetic component 111 can be installed and fixed to the end of the drive shaft 11 by fasteners such as bolts and screws, or it can be glued and fixed to the end of the drive shaft 11 by adhesive. There are many ways to connect and assemble the second magnetic component 111 and the drive shaft 11. This application does not limit this one, as long as it can achieve a stable installation of the second magnetic component 111 on the end of the drive shaft 11.

[0055] In one embodiment of this utility model, the lock nut 50 is provided with one of a locking protrusion or a locking groove at one end facing the fan blade 30, and the mounting body 31 is provided with the other of a locking protrusion or a locking groove on one side facing the lock nut 50, and the locking protrusion and the locking groove engage to lock.

[0056] In this embodiment, the lock nut 50 can have a snap-fit ​​protrusion on its end face facing the fan blade 30. In this case, the mounting body 31 of the fan blade 30 can have a snap-fit ​​groove on its end face facing the lock nut 50 that engages with the snap-fit ​​protrusion. Alternatively, the mounting body 31 of the fan blade 30 can have a snap-fit ​​protrusion on its end face facing the lock nut 50. In this case, the lock nut 50 can have a snap-fit ​​groove on its end face facing the fan blade 30 that engages with the snap-fit ​​protrusion. Furthermore, when the lock nut 50 is magnetically connected to the drive shaft 11 at the end of the fan blade 30 facing away from the drive motor 10, the snap-fit ​​protrusion is inserted into the corresponding snap-fit ​​groove, achieving a proper snap-fit ​​connection between the lock nut 50 and the fan blade 30. This improves the stability and reliability of the limiting connection between the lock nut 50 and the fan blade 30, effectively preventing the fan blade 30 from detaching from the drive shaft 11, and achieving a more convenient and reliable assembly of the fan assembly 100.

[0057] Reference Figure 5 In one embodiment of the present invention, a protruding structure 113 is provided on the periphery of the drive shaft 11, and a limiting groove 313 is provided on the end of the mounting body 31 facing away from the lock nut 50. The protruding structure 113 and the limiting groove 313 are engaged and locked together.

[0058] In this embodiment, a protruding structure 113 can be provided on the periphery of the drive shaft 11. At this time, a corresponding limiting groove 313 can be provided at the end of the mounting body 31 facing the drive motor 10. When the drive shaft 11 is inserted into the mounting hole 311, the limiting groove 313 at the end of the mounting body 31 can engage with the protruding structure 113 to achieve axial limiting between the mounting body 31 and the drive shaft 11. By utilizing the engaging engagement between the protruding structure 113 and the limiting groove 313, when the drive motor 10 drives the drive shaft 11 to rotate, the drive shaft 11 can more stably drive the fan blade 30 to rotate synchronously, ensuring the stable operation of the drive motor 10 assembly. By utilizing the magnetic attraction between the lock nut 50 and the drive shaft 11 when the fan blade 30 is facing away from the motor, the axial limiting force of the lock nut 50 on the mounting body 31 and the abutting force of the protrusion structure 113 and the limiting groove 313 can clamp the mounting body 31 onto the drive shaft 11. This allows the mounting body 31 to be more securely mounted on the drive shaft 11, effectively preventing the fan blade 30 from detaching from the drive shaft 11, and further improving the overall structural stability and reliability of the drive motor 10 assembly.

[0059] This utility model also proposes a blower device, which includes a housing and a blower assembly 100. The specific structure of the blower assembly 100 is as described in the above embodiments. Since this blower device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0060] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A fan assembly, characterized in that, include: The drive motor is provided with a drive shaft; A fan blade, comprising a mounting body and blades, the blades being connected to the periphery of the mounting body, the mounting body having mounting holes, a drive shaft passing through the mounting holes, and the mounting body being connected to the drive shaft; and A lock nut is located on the side of the fan blade facing away from the drive motor and is magnetically connected to the drive shaft. The lock nut limits the mounting body along the axial direction of the drive shaft.

2. The wind turbine assembly as described in claim 1, characterized in that, The lock nut is provided with a first magnetic element, which is magnetically connected to the drive shaft.

3. The wind turbine assembly as described in claim 2, characterized in that, The lock nut has a receiving groove on its surface along the axial direction of the drive shaft, and the first magnetic element is disposed in the receiving groove.

4. The wind turbine assembly as described in claim 3, characterized in that, The receiving groove is located on the side of the lock nut facing the fan blade, and the end of the drive shaft extends out of the mounting hole and is inserted into the receiving groove.

5. The wind turbine assembly as described in claim 4, characterized in that, The first magnetic component includes a shaft-end magnetic component, which is disposed on the bottom wall of the receiving groove and is positioned towards the end face of the drive shaft. And / or, the first magnetic element includes a axial magnetic element, which is disposed on the sidewall of the receiving groove and is arranged toward the periphery of the drive shaft.

6. The wind turbine assembly as described in claim 2, characterized in that, The lock nut further includes a fastener, which connects the first magnetic element and the lock nut; And / or, the lock nut further includes an adhesive element that bonds the first magnetic element to the lock nut.

7. The wind turbine assembly as described in any one of claims 1 to 6, characterized in that, The end of the drive shaft is connected to a second magnetic component, which is magnetically connected to the lock nut.

8. The wind turbine assembly as described in any one of claims 1 to 6, characterized in that, The lock nut has one of a locking protrusion or a locking groove at one end facing the fan blade, and the mounting body has the other of a locking protrusion or a locking groove on one side facing the lock nut. The locking protrusion and the locking groove engage to lock together.

9. The wind turbine assembly as described in any one of claims 1 to 6, characterized in that, The drive shaft has a raised structure on its periphery, and the mounting body has a limiting groove at the end opposite to the lock nut. The raised structure and the limiting groove are engaged and snapped together.

10. A blower device, characterized in that, The blower device includes a housing and a blower assembly, wherein the blower assembly is the blower assembly according to any one of claims 1 to 9, and the blower assembly is connected to the housing.

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