A silent fan blade to reduce airflow

Abstract

This utility model discloses a silent, turbulence-reducing fan blade, including a mounting ring. Several connectors are uniformly fixedly mounted on the inner wall of the mounting ring, and the same mounting base is fixedly mounted on adjacent sides of each connector. Several blade assemblies are uniformly fixedly mounted on the outer wall of the mounting ring. This utility model relates to the field of fan blade technology. This silent, turbulence-reducing fan blade dissipates sound wave energy during operation through the blade assemblies. The buffer pad absorbs vibration energy, reducing vibration noise caused by the blade body driving the sawtooth blades during operation. Sound-absorbing holes on the surface of the buffer pad absorb vibration noise, improving the quietness of the blade body during operation. The sawtooth blades and wind-breaking blades reduce airflow separation and turbulence problems, effectively dispersing eddies and reducing high-frequency noise. The differentiated installation angle design of the blade assemblies breaks the resonance frequency and reduces noise superposition, making the blade assemblies quieter during operation and reducing turbulence impact.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine blade technology, specifically a silent wind turbine blade that reduces turbulence. Background Technology

[0002] Silent de-turbulence fan blades reduce noise and improve airflow efficiency through optimized aerodynamic design and material selection. They are specifically designed to reduce noise and airflow disturbance and are typically used in equipment that requires a low-noise environment, such as home appliances, computer equipment, and medical equipment.

[0003] Patent CN220622253U discloses a high-efficiency, quiet, and turbulence-reducing fan blade, belonging to the field of fan blades. The blade includes a hub and blades disposed on the sidewall of the hub. The blades are arranged in a ring array on the sidewall of the hub. A sleeve shaft is provided inside the hub, and reinforcing plates arranged in a ring array are fixedly installed between the sleeve shaft and the inner wall of the hub. Mounting plates are provided on both sides of the blades. Through holes are opened on the surfaces of the two mounting plates in the same group and on the blades. Fixing bolts are installed in the through holes, and fixing nuts are sleeved on the sidewalls of the ends of the fixing bolts. Stabilizing components are provided on the surfaces of the mounting plates. This application uses stabilizing components to stabilize the blades, which helps reduce the vibration frequency generated during blade rotation, thus reducing noise. Furthermore, the blade tips are equipped with small winglets, which can suppress the generation of turbulence and vortices, improving the aerodynamic shape of the blades and further reducing noise.

[0004] The above-mentioned device has certain shortcomings in use: there are many components installed at the top and bottom of the blade, such as stabilizing components, etc. When the blade rotates at high speed, it will vibrate, especially the tension spring will vibrate and generate noise.

[0005] Therefore, this utility model provides a silent, turbulence-reducing fan blade to solve the above-mentioned problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a silent, turbulence-reducing fan blade, which solves the aforementioned problems.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a silent de-turbulence fan blade, including a mounting ring, a plurality of connectors are uniformly fixedly installed on the inner wall of the mounting ring, and the same mounting seat is fixedly installed on the adjacent side of the plurality of connectors; a plurality of blade assemblies are uniformly fixedly installed on the outer wall of the mounting ring; and fastening components are installed on the inner wall of the mounting seat.

[0008] The blade assembly includes a blade body, which is fixedly connected to the outer wall of the mounting ring. The blade body is designed to be ultra-thin and lightweight. A connecting frame is fixedly installed on the inner wall of the blade body. The connecting frame has a honeycomb design inside. A buffer pad is fixedly installed on the inner wall of the connecting frame. Several sound-absorbing holes are evenly opened on the outer surface of the buffer pad. Saw-shaped blades are fixedly installed on the outer wall of the blade body. Wind-breaking blades are fixedly installed at the tips of the blade body and the saw-shaped blades. The outer edges of the saw-shaped blades and the wind-breaking blades are thin.

[0009] The above technical solutions improve the quietness of the blades during operation and reduce the impact of turbulence.

[0010] Furthermore, the fastening assembly includes a drive shaft, with an abutment fixedly mounted at the front end of the drive shaft, the front wall of the abutment abutting and fixing to the rear wall of the mounting ring.

[0011] The above technical solution enables the abutment seat to rotate via the drive shaft, and the abutment seat is fixed to the rear wall of the mounting ring, thus ensuring good stability during subsequent installation.

[0012] Furthermore, an insert shaft is fixedly installed at the center of the front wall of the abutment seat, and a stud is fixedly installed at the front end of the insert shaft.

[0013] Through the above technical solution, the insertion shaft passes through the insertion hole and extends the stud outward.

[0014] Furthermore, several positioning blocks are evenly fixedly installed on the outer wall of the insert shaft, and a threaded sleeve is screwed onto the outer wall of the stud, with the rear wall of the threaded sleeve abutting and fixed against the front wall of the mounting ring.

[0015] The above technical solution uses a threaded sleeve to screw and limit the external position of the stud, thereby completing the installation and fixation of the through shaft.

[0016] Furthermore, the front wall of the mounting base is provided with an insertion hole, and the inner wall of the insertion hole fits against the outer wall of the insertion shaft.

[0017] The above technical solution uses the through holes primarily for the installation and fixation of the through shaft.

[0018] Furthermore, positioning grooves are provided on the inner wall of the insertion hole and at the position corresponding to the positioning block, and the inner wall of several positioning grooves fits against the outer wall of the corresponding positioning block.

[0019] Through the above technical solution, the positioning block and the positioning groove cooperate to fix the position of the through shaft.

[0020] Beneficial effects

[0021] This invention provides a silent, turbulence-reducing fan blade. Compared with the prior art, it has the following advantages:

[0022] (1) The silent de-turbulence fan blade can dissipate sound wave energy through the blade assembly during operation, and the buffer pad can absorb vibration energy, reducing the vibration noise of the blade body driving the saw blade during operation. The sound-absorbing holes set on the surface of the buffer pad can absorb vibration noise and improve the quietness of the blade body during operation. The saw blade and the wind-breaking blade can reduce airflow separation and turbulence problems, have the effect of dispersing eddies and reducing high-frequency noise. The differentiated installation angle design of the blade assembly can break the resonance frequency and reduce noise superposition, making the blade assembly quieter during operation and reducing the impact of turbulence.

[0023] (2) The silent de-turbulence fan blade can be quickly installed and fixed during operation by setting the fastening component. The overall installation process is relatively simple. After installation, the blade assembly can maintain a stable working posture and reduce the impact of noise. Attached Figure Description

[0024] Figure 1 This is a front view of the external structure of this utility model;

[0025] Figure 2 This is an exploded view of the internal structure of the blade assembly of this utility model;

[0026] Figure 3 This is the utility model Figure 2 Enlarged view of the structure at point A;

[0027] Figure 4 This is an exploded view of the internal structure of the fastening component of this utility model;

[0028] Figure 5 This is an exploded view of the internal structure of the fastening component of this utility model.

[0029] In the diagram: 1. Mounting ring; 2. Blade assembly; 21. Blade body; 22. Connecting frame; 23. Buffer pad; 24. Sound absorption hole; 25. Sawtooth blade; 26. Wind-breaking blade; 3. Mounting base; 4. Connector; 5. Fastening assembly; 51. Through hole; 52. Positioning groove; 53. Through shaft; 54. Positioning block; 55. Stud; 56. Abutment seat; 57. Drive shaft; 58. Threaded sleeve. Detailed Implementation

[0030] 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 protection scope of the present utility model.

[0031] Example 1:

[0032] Please see Figures 1-5 A silent, turbulence-reducing fan blade includes a mounting ring 1, a plurality of connectors 4 are uniformly fixedly installed on the inner wall of the mounting ring 1, and the same mounting seat 3 is fixedly installed on the adjacent side of the plurality of connectors 4. A plurality of blade assemblies 2 are uniformly fixedly installed on the outer wall of the mounting ring 1, and fastening components 5 are installed on the inner wall of the mounting seat 3.

[0033] The blade assembly 2 includes a blade body 21, which is fixedly connected to the outer wall of the mounting ring 1. The blade body 21 is an ultra-thin design. A connecting frame 22 is fixedly installed on the inner wall of the blade body 21. The connecting frame 22 has a honeycomb design inside. A buffer pad 23 is fixedly installed on the inner wall of the connecting frame 22. Several sound-absorbing holes 24 are evenly opened on the outer surface of the buffer pad 23. Saw-shaped blades 25 are fixedly installed on the outer walls of the blade body 21. Wind-breaking blades 26 are fixedly installed at the top of the blade body 21 and the saw-shaped blades 25. The outer edge of the saw-shaped blades 25 and the wind-breaking blades 26 are thin sheets.

[0034] In this embodiment of the utility model, the purpose of this arrangement is that the blade assembly 2 is configured to have good quietness and reduce noise decibels when rotating. The buffer pad 23 is made of rubber and can absorb vibration energy. At the same time, the sound-absorbing holes 24 opened on the surface can absorb vibration noise. The saw blades 25 and the wind-breaking blades 26 can reduce airflow separation and turbulence problems, disperse vortices, and reduce high-frequency noise.

[0035] Example 2:

[0036] Please see Figures 1-5 This embodiment provides a technical solution based on embodiment one: the fastening component 5 includes a drive shaft 57, an abutment seat 56 is fixedly installed at the front end of the drive shaft 57, the front wall of the abutment seat 56 abuts and is fixedly connected to the rear wall of the mounting ring 1, an insertion shaft 53 is fixedly installed at the center of the front wall of the abutment seat 56, a stud 55 is fixedly installed at the front end of the insertion shaft 53, a plurality of positioning blocks 54 are evenly fixedly installed on the outer wall of the insertion shaft 53, a threaded sleeve 58 is screwed onto the outer wall of the stud 55, the rear wall of the threaded sleeve 58 abuts and is fixedly connected to the front wall of the mounting ring 1, an insertion hole 51 is opened on the front wall of the mounting base 3, the inner wall of the insertion hole 51 fits against the outer wall of the insertion shaft 53, a positioning groove 52 is opened on the inner wall of the insertion hole 51 and at the position corresponding to the positioning block 54, and the inner walls of the plurality of positioning grooves 52 fit against the outer walls of the corresponding positioning blocks 54;

[0037] In this embodiment of the utility model, the purpose of this arrangement is that the fastening component 5 can quickly install and fix the blade assembly 2 during operation, and after installation, it has a good stabilizing effect, so that the whole device can operate smoothly and quietly.

[0038] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0039] The working principle of this device is as follows: When the mounting ring 1, blade assembly 2, mounting base 3, and connector 4 are installed on the fastening assembly 5, the movable mounting ring 1 drives the mounting base 3, connector 4, and blade assembly 2 to fit onto the outer wall of the through shaft 53, so that the outer wall of the through shaft 53 fits against the inner wall of the through hole 51, and the positioning block 54 enters into the inner wall of the corresponding positioning groove 52 to achieve positioning. At the same time, the positioning block 54 and the positioning groove 52 cooperate to limit the position of the mounting base 3 and the mounting ring 1. Then, the threaded sleeve 58 is screwed onto the outer wall of the stud 55 and abuts against the front wall of the mounting base 3. At the same time, the abutment seat 56 abuts against the rear wall of the mounting base 3. The drive shaft 57 can drive the through shaft 53, mounting ring 1, and the entire blade assembly 2 to rotate.

[0040] By installing a connecting frame 22 in the inner wall of the blade body 21, the honeycomb structure inside the connecting frame 22 can dissipate sound wave energy like a silencer. The buffer pad 23 can absorb vibration energy, reducing the vibration noise of the blade body 21 driving the saw blade 25 during operation. At the same time, the sound-absorbing holes 24 on the surface of the buffer pad 23 can absorb vibration noise, improving the quietness of the blade body 21 during operation. The saw blade 25 and the wind-breaking blade 26 can reduce airflow separation and turbulence problems, disperse vortices, and reduce high-frequency noise. By designing the installation angle of the blade assembly 2 differently, the resonance frequency can be broken and the noise superposition can be reduced, making the blade assembly 2 quieter during operation and reducing the impact of turbulence.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A silent de-turbulating fan blade characterized by: The device includes a mounting ring (1), on which several connectors (4) are uniformly fixedly installed on the inner wall of the mounting ring (1), and on which the same mounting seat (3) is fixedly installed on the adjacent side of several connectors (4). Several blade assemblies (2) are uniformly fixedly installed on the outer wall of the mounting ring (1), and fastening components (5) are installed on the inner wall of the mounting seat (3). The blade assembly (2) includes a blade body (21), which is fixedly connected to the outer wall of the mounting ring (1). The blade body (21) is ultra-thin and lightweight. A connecting frame (22) is fixedly installed on the inner wall of the blade body (21). The connecting frame (22) has a honeycomb design inside. A buffer pad (23) is fixedly installed on the inner wall of the connecting frame (22). Several sound-absorbing holes (24) are evenly opened on the outer surface of the buffer pad (23). Saw-shaped blades (25) are fixedly installed on the outer walls of the blade body (21). Wind-breaking blades (26) are fixedly installed at the top of the blade body (21) and the saw-shaped blades (25). The outer edge of the saw-shaped blades (25) and the wind-breaking blades (26) are thin.

2. The silent de-turbulating fan blade of claim 1, wherein: The fastening assembly (5) includes a drive shaft (57), and an abutment seat (56) is fixedly installed at the front end of the drive shaft (57). The front wall of the abutment seat (56) abuts and is fixed to the rear wall of the mounting ring (1).

3. The silent de-turbulating fan blade of claim 2, wherein: An insert shaft (53) is fixedly installed at the center of the front wall of the abutment seat (56), and a stud (55) is fixedly installed at the front end of the insert shaft (53).

4. The silent de-turbulating fan blade of claim 3, wherein: The outer wall of the through shaft (53) is uniformly fixed with several positioning blocks (54), and the outer wall of the stud (55) is screwed with a threaded sleeve (58). The rear wall of the threaded sleeve (58) abuts against the front wall of the mounting ring (1).

5. The silent de-turbulating fan blade of claim 1, wherein: The mounting base (3) has an insertion hole (51) on its front wall, and the inner wall of the insertion hole (51) is in contact with the outer wall of the insertion shaft (53).

6. The silent de-turbulating fan blade of claim 5, wherein: The inner wall of the insertion hole (51) and the position corresponding to the positioning block (54) are provided with positioning grooves (52), and the inner wall of several positioning grooves (52) is in contact with the outer wall of the corresponding positioning block (54).

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