Steering structure of fan

Abstract

The utility model discloses a turning structure of a fan, which comprises a mounting frame and a driving motor for driving fan blades to rotate, and a head shaking mechanism capable of driving the driving motor to swing is arranged between the mounting frame and the driving motor. The head shaking mechanism comprises a swing frame rotationally connected to the mounting frame, a rotating seat rotationally connected to the swing frame and a steering motor connected to the mounting frame, and a transmission structure for driving the swing frame to swing when an output shaft rotates is connected to the output shaft of the steering motor; the rotating seat comprises a seat body, a concave cavity used for installing the driving motor is formed in the seat body, a net cover which can rotate along with the seat body and is used for covering the fan blades is further connected to the seat body, the traditional complex transmission mode of a gearbox and a multi-stage connecting rod is abandoned, the number of mechanical parts is greatly reduced, the assembly difficulty and the production cost are reduced, and the assembly efficiency is improved. And the fault risk caused by gear abrasion is reduced, and the service life of the head shaking mechanism is remarkably prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan accessory technical field especially, it relates to a fan's steering structure. BACKGROUND

[0002] The steering structure of traditional fan adopts the mechanical transmission mode of gear box and connecting rod mechanism to realize the head shaking function. For example, the common design is to set the worm gear reduction mechanism at the motor output end, and the fan head is swung left and right through the connecting rod. Although this structure can realize the basic head shaking air supply function, it has the following inherent defects: 1. Complex mechanical structure: the cooperation of gear box and multi-stage connecting rod leads to many components and complicated assembly process, which not only increases the production cost, but also easily causes failure due to mechanical wear, and the maintenance cost is high; 2. Significant operating noise: the friction vibration generated in the gear meshing transmission process is easy to produce noise, especially when running at high speed, which affects the user experience; 3. High space occupancy rate: the gear box and connecting rod mechanism need to occupy a large horizontal space, which makes it difficult to reduce the overall size of the fan, limiting the miniaturization design of the product; 4. Poor meshing of the mesh cover: the mesh cover is usually fixed on the periphery of the fan blade in the traditional design, and cannot rotate synchronously with the head shaking mechanism, resulting in a visual gap between the mesh cover and the moving parts, and there is a safety hazard of movement gap.

[0003] The utility model is made based on the above situation. CONTENT OF THE UTILITY MODEL

[0004] The utility model overcomes the defects of the prior art and provides a fan steering structure convenient to install.

[0005] The utility model is implemented by the following technical solutions:

[0006] A fan steering structure, comprising a mounting frame and a drive motor for driving the rotation of the fan blade, a head shaking mechanism for driving the drive motor to swing is arranged between the mounting frame and the drive motor, the head shaking mechanism comprises a swing frame rotatably connected to the mounting frame, a rotating seat rotatably connected to the swing frame, and a steering motor connected to the mounting frame, a transmission structure for driving the swing frame to swing when the output shaft of the steering motor rotates is connected to the output shaft of the steering motor; the rotating seat comprises a seat body, a recess for mounting the drive motor is arranged on the seat body, and a mesh cover for covering the fan blade and capable of rotating with the seat body is further connected to the seat body.

[0007] A fan steering structure as described above, a buckle structure capable of connecting the mesh cover to the seat body is arranged between the seat body and the mesh cover.

[0008] A fan steering structure as described above, an eaves extending outward is arranged at the end of the seat body, and the buckle structure comprises a clamping hole arranged on the eaves or the mesh cover and a clamping body arranged on the other and capable of being buckled with the clamping hole.

[0009] The fan steering structure as claimed in any one of the preceding claims, wherein the transmission structure comprises a first shaft head connected to the seat body and a transmission block connected to the output shaft of the steering motor, the transmission block is rotatably connected to the first shaft head, and the transmission block is provided with an inclined shaft connected to the output shaft of the steering motor, the angle between the axis of the inclined shaft and the axis of the first shaft head is an acute angle.

[0010] The fan steering structure as claimed in any one of the preceding claims, wherein a first rotation connecting structure for rotatably connecting the swing frame to the mounting frame is arranged between the mounting frame and the swing frame, the first rotation connecting structure comprises a second shaft head arranged on the left and right side surfaces of the mounting frame or the swing frame, a first mounting slot arranged on the other surface in correspondence, and a first bearing mounted on the second shaft head and clamped in the first mounting slot.

[0011] The fan steering structure as claimed in any one of the preceding claims, wherein a second rotation connecting structure for rotatably connecting the swing frame to the rotating seat is arranged between the swing frame and the rotating seat, the second rotation connecting structure comprises a third shaft head arranged on the front and rear side surfaces of the rotating seat or the swing frame, a second mounting slot arranged on the other surface in correspondence, and a second bearing mounted on the third shaft head and clamped in the second mounting slot.

[0012] The fan steering structure as claimed in any one of the preceding claims, wherein a protective cover for covering the swing mechanism is further connected to the mounting frame, and the protective cover is provided with a first avoiding opening for providing a space for the rotation of the rotating seat.

[0013] The fan steering structure as claimed in any one of the preceding claims, wherein the first shaft head is provided with a third bearing, and the transmission block is provided with a third mounting slot for embedding the third bearing.

[0014] The fan steering structure as claimed in any one of the preceding claims, wherein the mounting frame comprises a bottom plate and connecting columns symmetrically arranged on the bottom plate, the first mounting slot is arranged on the outer side wall of the connecting column, and the side wall of the first mounting slot is provided with a second avoiding opening for facilitating the installation of the second shaft head; the second mounting slot is arranged on the inner side wall of the swing frame, and the inner side wall of the second mounting slot is provided with a third avoiding opening for facilitating the installation of the third shaft head.

[0015] The fan steering structure as claimed in any one of the preceding claims, wherein the eave and the mesh cover are further provided with mounting holes for penetrating the threaded connecting pieces.

[0016] Compared with the prior art, the fan steering structure has the following advantages:

[0017] This invention directly drives the swing frame via a steering motor and transmission structure, eliminating the complex transmission methods of traditional gearboxes and multi-stage linkages, and significantly reducing the number of mechanical parts. This structure not only reduces assembly difficulty and production costs but also reduces the risk of failure due to gear wear, significantly extending the service life of the oscillating mechanism. The rotational connection design between the swing frame and the rotating base creates dual-degree-of-freedom motion (horizontal oscillation and vertical rotation), which can drive the drive motor and fan blades to achieve multi-angle three-dimensional air delivery, expanding the coverage area and improving the user experience. The mesh cover is directly connected to the base of the rotating base and can rotate synchronously with the drive motor, avoiding the gap problem between the mesh cover and moving parts when fixed in traditional systems. At the same time, the dynamic movement of the mesh cover makes the product appearance more harmonious and smooth, enhancing the overall aesthetics. The recessed cavity of the base embeds the drive motor, optimizing the spatial layout of the motor and the rotating base; the steering motor is directly fixed to the mounting bracket without the need for additional support structures, thus achieving miniaturization of the entire machine.

[0018] This invention utilizes a snap-fit ​​structure between the base and the mesh cover, simplifying the installation and removal of the mesh cover. Users can easily complete the operation without tools, significantly improving installation convenience. The snap-fit ​​structure ensures a more secure connection between the mesh cover and the base, avoiding the loosening or detachment problems that can occur with traditional screw fixing methods, thus ensuring the stability of the mesh cover during long-term use. The mesh cover connects to the rotating base and rotates synchronously with it, ensuring that the fan blades are always completely covered by the mesh cover during oscillation, improving safety and avoiding the problem of the mesh cover and fan blades being out of sync in traditional designs. Attached Figure Description

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is an exploded view of the present invention. Figure One ;

[0022] Figure 3 This is a cross-sectional schematic diagram of the present invention;

[0023] Figure 4 This is an exploded view of the present invention. Figure Two . Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figures 1 to 4The turning structure of a fan shown includes a mounting frame 1 and a driving motor 2 for driving the rotation of the fan blades, a swing mechanism is arranged between the mounting frame 1 and the driving motor 2 and can drive the driving motor 2 to swing, the swing mechanism includes a swing frame 3 rotatably connected to the mounting frame 1, a rotating seat 4 rotatably connected to the swing frame 3, and a turning motor 5 connected to the mounting frame 1, a transmission structure 6 connected to the output shaft of the turning motor 5 and capable of driving the swing frame 3 to swing when the output shaft rotates; the rotating seat 4 includes a seat body 41, the seat body 41 is provided with a recessed cavity 40 for mounting the driving motor 2, and a mesh cover 7 capable of rotating with the seat body 41 and used for covering the fan blades is further connected to the seat body 41; the seat body 41 and the mesh cover 7 are provided with a buckle structure 8 capable of connecting the mesh cover 7 to the seat body 41.

[0026] The buckle structure 8 designed between the seat body 41 and the mesh cover 7 makes the installation and disassembly process of the mesh cover 7 more convenient, and the user can easily complete the operation without the help of tools, significantly improving the convenience of installation. The buckle structure 8 makes the connection between the mesh cover 7 and the seat body 41 more secure, avoiding the loosening or falling problem that may be caused by the traditional screw fixing method, and ensuring the stability of the mesh cover 7 in long-term use. The swing mechanism can efficiently drive the driving motor 2 to swing through the cooperation of the turning motor 5, the swing frame 3 and the transmission structure 6, thereby realizing the reciprocating swing of the fan blades, expanding the air supply range and improving the user experience. The seat body 41 is provided with a recessed cavity 40 for mounting the driving motor 2, making the installation of the driving motor 2 more stable, reducing the vibration and noise during operation, and improving the overall performance of the fan. The mesh cover 7 is connected to the rotating seat 4 and can rotate synchronously with it, ensuring that the fan blades are always completely covered by the mesh cover 7 during the swinging process, improving safety, and avoiding the problem of the mesh cover 7 and the fan blades being out of sync in the traditional design.

[0027] Specifically, the driving motor 2 is connected to the mounting frame 1 by a threaded fastener or other connecting structure, and the turning motor 5 is connected to the seat body 41 by a threaded fastener or other connecting structure.

[0028] Further, the end of the seat body 41 is provided with an outwardly extending eave 411, the buckle structure 8 includes a clamping hole 81 provided on the eave 411 or the mesh cover 7 and a buckle body 82 provided on the other and capable of being buckled with the clamping hole 81. The quick connection and fixation between the mesh cover 7 and the seat body 41 are realized. The user only needs to align the buckle body 82 with the clamping hole 81 and press to complete the installation of the mesh cover 7, and when disassembling, the user only needs to move the buckle body 82 to separate the mesh cover 7. The whole process does not need to use tools, significantly improving the convenience of operation and reducing the user's use cost. The seat body 41 is provided with an outwardly extending eave 411, which not only provides a mounting basis for the buckle structure 8, but also enhances the overall structural strength of the seat body 41, making it more stable during the operation of the swing mechanism and reducing vibration and noise.

[0029] In an embodiment, the transmission structure 6 includes a first shaft head 61 connected to the seat body 41 and a transmission block 62 connected to the output shaft of the steering motor 5, the transmission block 62 is rotationally connected with the first shaft head 61, and the transmission block 62 is provided with an inclined shaft 621 connected with the output shaft of the steering motor 5, the angle between the axis of the inclined shaft 621 and the axis of the first shaft head 61 is an acute angle.

[0030] The transmission structure 6 converts the rotary motion of the steering motor 5 into the swing motion of the seat body 41 through the rotational connection of the inclined shaft 621 and the first shaft head 61. The acute angle design between the axis of the inclined shaft 621 and the axis of the first shaft head 61 makes the transmission more efficient, can realize stable and large range of fan swing, and expand the air supply range. The acute angle design between the inclined shaft 621 and the first shaft head 61 makes the motion conversion in the transmission process more accurate, avoids the possible jamming or deviation problem in the traditional transmission structure, and ensures the smooth operation of the swing mechanism.

[0031] Further, the first shaft head 61 is provided with a third bearing 611, and the transmission block 62 is provided with a third mounting groove 622 for embedding the third bearing 611. Thus, the structure connection is more stable and reliable.

[0032] In an embodiment, a first rotational connection structure for rotationally connecting the swing frame 3 to the mounting frame 1 is arranged between the mounting frame 1 and the swing frame 3, the first rotational connection structure includes a second shaft head 31 arranged on the left and right side surfaces of the mounting frame 1 or the swing frame 3, a first mounting groove 11 arranged correspondingly on the other, and a first bearing 111 mounted on the second shaft head 31 and clamped in the first mounting groove 11. Through the cooperation of the second shaft head 31, the first mounting groove 11 and the first bearing 111, the stable and reliable connection between the swing frame 3 and the mounting frame 1 is realized. This design has the advantages of simple structure, convenient installation, stable operation and low noise, which not only improves the performance of the fan and the user experience, but also reduces the production cost and maintenance difficulty.

[0033] Further, the mounting frame 1 includes a bottom plate 12 and a connecting column 13 symmetrically arranged on the bottom plate 12, the first mounting groove 11 is arranged on the outer side wall of the connecting column 13, and the side wall of the first mounting groove 11 is provided with a second avoiding opening 131 for facilitating the installation of the second shaft head 31.

[0034] In an embodiment, a second rotating connection structure is arranged between the rotating seat 4 and the swing frame 3 to rotatably connect the rotating seat 4 to the swing frame 3. The second rotating connection structure includes a third shaft head 42 arranged on the front or rear side of the rotating seat 4 or the swing frame 3, a second mounting groove 32 arranged on the other side, and a second bearing 321 mounted on the third shaft head 42 and clamped in the second mounting groove 32. Through the cooperation of the third shaft head 42, the second mounting groove 32 and the second bearing 321, the rotating seat 4 and the swing frame 3 are stably and reliably connected. This design has the advantages of simple structure, convenient installation, stable operation and low noise, which not only improves the performance and user experience of the fan, but also reduces the production cost and maintenance difficulty.

[0035] Further, the second mounting groove 32 is arranged on the inner side wall of the swing frame 3, and the inner side wall of the second mounting groove 32 is provided with a third avoiding opening 322 for facilitating the installation of the third shaft head 42.

[0036] In an embodiment, the mounting frame 1 is further connected with a protective cover 9 for covering the swing mechanism, and the protective cover 9 is provided with a first avoiding opening 91 for providing space for the rotation of the rotating seat 4. The protective cover 9 can be connected to the mounting frame 1 by a threaded fastener or other connection structure. The protective cover 9 can effectively cover the swing mechanism, prevent accidental contact with moving parts, avoid potential safety hazards, and significantly improve the safety of the fan. The design of the protective cover 9 makes the overall appearance of the fan more neat and beautiful, hides the complex internal structure, improves the visual appeal of the product, and meets the aesthetic trend of modern household appliances. The protective cover 9 is provided with a first avoiding opening 91, which provides enough space for the rotation of the rotating seat 4, ensuring smooth operation of the swing mechanism and avoiding interference or collision between the protective cover 9 and the rotating seat 4.

[0037] In an embodiment, the outer eaves 411 and the mesh cover 7 are further provided with mounting holes 410 for the threaded connecting members to pass through. Thus, in the case of damage to the buckle structure 8, the connection can be made through a threaded fastener.

Claims

1. A turning structure of a fan, characterized by: The utility model provides a fan, including the mounting frame (1) and the drive motor (2) of drive fan rotation, be equipped with the swing mechanism that can drive drive motor (2) swing between mounting frame (1) and drive motor (2), swing mechanism includes the swing frame (3) of rotation connection in mounting frame (1), the rotation seat (4) of rotation connection in swing frame (3) and the steering motor (5) of connection in mounting frame (1), the output shaft of steering motor (5) is connected with the transmission structure (6) that drives swing frame (3) swing when the output shaft rotates, rotation seat (4) includes seat body (41), be equipped with the recessed cavity (40) for installing drive motor (2) on seat body (41), seat body (41) is also connected with the mesh cover (7) that can follow its rotation and is used to cover the fan.

2. A turning structure of a fan according to claim 1, wherein: Be equipped with the buckle structure (8) between seat body (41) and mesh cover (7) can make mesh cover (7) connect on seat body (41).

3. A turning structure for a fan as claimed in claim 2, wherein: The end of seat body (41) is equipped with the eaves (411) that stretches out to the outside, the buckle structure (8) includes the card hole (81) of being equipped with on eaves (411) or mesh cover (7) and the buckle body (82) of being correspondingly equipped on the other and can be buckled with card hole (81).

4. A turning structure for a fan as claimed in claim 3, wherein: Transmission structure (6) includes the first axle head (61) of being connected on seat body (41) and the transmission block (62) of being connected on the output shaft of steering motor (5), transmission block (62) is rotationally connected with first axle head (61), is equipped with the inclined axle (621) of being connected with the output shaft of steering motor (5) on transmission block (62), the included angle of the axis of inclined axle (621) and first axle head (61) is acute angle.

5. A turning structure for a fan as claimed in claim 4, wherein: Be equipped with the first rotation connection structure between mounting frame (1) and swing frame (3) makes swing frame (3) rotationally connect on mounting frame (1), first rotation connection structure includes the second axle head (31) of being equipped on the left and right side surface of mounting frame (1) or swing frame (3), the first installation slot (11) of being correspondingly equipped on the other and the first bearing (111) of being installed on second axle head (31) and clamped in first installation slot (11).

6. A turning structure for a fan as claimed in claim 5, wherein: Be equipped with the second rotation connection structure between rotation seat (4) and swing frame (3) makes rotation seat (4) rotationally connect on swing frame (3), second rotation connection structure includes the third axle head (42) of being equipped on the front and back side surface of rotation seat (4) or swing frame (3), the second installation slot (32) of being correspondingly equipped on the other and the second bearing (321) of being installed on third axle head (42) and clamped in second installation slot (32).

7. A turning structure for a fan as claimed in any one of claims 1 to 6, wherein: Still be equipped with the protective cover (9) for covering swing mechanism on mounting frame (1), be equipped with the first avoiding mouth (91) for providing space for the rotation of rotation seat (4) on protective cover (9).

8. The turning structure of a fan according to claim 4, wherein: Be equipped with the third bearing (611) on first axle head (61), be equipped with the third installation slot (622) of embedding third bearing (611) on transmission block (62).

9. The turning structure of a fan according to claim 6, wherein: The mounting frame (1) comprises a bottom plate (12) and connecting columns (13) symmetrically arranged on the bottom plate (12), the first mounting slot (11) is arranged on the outer side wall of the connecting column (13), and a second avoiding opening (131) for facilitating installation of the second shaft head (31) is arranged on the side wall of the first mounting slot (11); the second mounting slot (32) is arranged on the inner side wall of the swing frame (3), and a third avoiding opening (322) for facilitating installation of the third shaft head (42) is arranged on the inner side wall of the second mounting slot (32).

10. A turning structure for a fan as claimed in any one of claims 3 to 6, wherein: The outer eave (411) and the mesh cover (7) are further provided with mounting holes (410) for the threaded connecting pieces to pass through.

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