Pressurized novel fan

Abstract

The invention provides a supercharged type novel fan. The supercharged type novel fan comprises an outer main body provided with an air duct, rotating fan blades rotationally arranged in the outer main body, a supercharged cover detachably connected to the outer main body in a butt joint mode, and a guide assembly used for further guiding air input into the air duct by the rotating fan blades to the supercharged cover. Through the arrangement of the first flow guide piece located in the air duct and the second flow guide piece located in the pressurizing cover, and the first flow guide piece is provided with the first flow guide blades which are relatively inclined, airflow can be guided to flow along a more optimized path, turbulence of the airflow and generation of vortexes are reduced, and the pressurizing effect is further improved; and the second flow guide blades of the second flow guide piece are located between the pressurizing cover and the wind cutting blades, airflow can be evenly guided out from the air outlet end, it is ensured that pressurized air flows more stably, the long-distance air supply effect of improving the air speed is facilitated, drainage adjustment can be conducted on air in an air duct, and the turbulent flow phenomenon can be obviously reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of fans, and in particular to a new type of supercharged fan. Background Art

[0002] At present, the boost fans on the market generally achieve effective wind speed increase and long-distance air delivery through rotating blades combined with boost structures and air duct designs. Among them, the boost blades or wind-cutting structures usually cause internal airflow turbulence, especially when running at high speeds. When the wind flows through the air duct or boost mechanism, strong eddy currents will be generated, leading to increased turbulence, which not only affects the boost effect of the fan, but also generates a lot of noise, affecting the user experience, especially when used indoors or in application scenarios with high requirements for quietness, the noise problem is particularly prominent.

[0003] Moreover, the internal structure design of existing boost fans is complex, but the actual boost effect is not significant. Although some fans have a multi-blade structure or air duct design, the air duct structure and layout are unreasonable, the air flow distribution is uneven, resulting in local air flow speed being faster while other parts are slower, and the boost efficiency is low, thereby increasing the overall energy consumption and limiting the boost effect.

[0004] In particular, portable booster fans are often difficult to achieve efficient boosting effects while being small and lightweight due to volume and power limitations. In addition, existing designs lack internal turbulence regulation, making it difficult to balance performance and efficiency, which greatly limits the promotion and use of products. In view of this, further improvement and optimization are urgently needed, and this application is hereby filed. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a new type of boosting fan, aiming to solve the problems of limited boosting effect, turbulent airflow and high noise of existing fans, and to achieve efficient wind speed increase and air guidance through ingenious structural design to solve the above problems.

[0006] The present invention adopts the following scheme:

[0007] The present application provides a new type of supercharged fan, comprising an outer body provided with an air duct, a rotating fan blade rotatably arranged in the outer body, a supercharged cover detachably docked with the outer body, and a guide assembly for further guiding the air input into the air duct by the rotating fan blade to the supercharged cover; the rotating fan blade is correspondingly installed at the air inlet end of the air duct, and the outer body is correspondingly provided with a wind-cutting blade at the air outlet end of the air duct; the guide assembly comprises a first guide member provided with a first guide blade, and a second guide member provided with a second guide blade; the first guide member is installed in the air duct and is located between the rotating fan blade and the wind-cutting blade, and the second guide member is arranged between the wind-cutting cover and the wind-cutting blade; the wind-cutting blade is arranged in a spiral blade shape suitable for outputting the air in the air duct in the form of external diffusion; the first guide blade covers the entire cross-sectional area of ​​the air duct, and the first guide blade is arranged at an inclination angle with the central axis of the outer body; the second guide member is arranged at the top of the outer body and is detachably connected with the supercharged cover, and the second guide blade is directly opposite to the entire air outlet end.

[0008] As a further improvement, the first guide blade of the first guide member is proportionally reduced relative to the second guide blade of the second guide member and is arranged in the outer body, and the first guide blade is directly opposite to the entire air inlet end.

[0009] As a further improvement, the first guide blades are arranged as a plurality of blades, the second guide blades are arranged as a singular blade, and the number of the second guide blades is greater than the number of the first guide blades.

[0010] As a further improvement, the included angle between the first guide vane and the central axis is 30°, the included angle between the wind cutting vane and the central axis is 60°, and the second guide vane is arranged parallel to the central axis.

[0011] As a further improvement, the outer body is in a circular tube shape, the first flow guide is in the shape of an annular frame, the second flow guide is in the shape of another annular frame with an outer diameter greater than that of the first flow guide, and the second flow guide protrudes toward the boost cover to form a row of pressure protrusions.

[0012] As a further improvement, a notch is provided on the top outer edge of the outer body, and the notch is used to connect the internal air duct with the outside.

[0013] As a further improvement, a boost channel is further provided between the second air guide and the boost cover, and the boost cover is constructed with openings at both ends, one of the openings being engaged with the second air guide, and the other opening extending outward to supply air.

[0014] As a further improvement, the boost channel is formed in the boost cover, and the inner wall of the boost cover is correspondingly constructed with a hollow waist-shaped mouth to form the boost channel that changes from large to small and then to large.

[0015] As a further improvement, a mounting cavity for assembling electric components is formed between the rotating fan blade and the first air guide member, and the rotating fan blade, the first air guide member, the wind cutting blade and the second air guide member are coaxially arranged.

[0016] As a further improvement, the wind cutting blade is made of carbon fiber composite material, and the first guide blade and the second guide blade are both coated with a noise reduction coating.

[0017] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0018] 1. The new type of supercharged fan of the present application is provided with a first guide member located in the air duct and a second guide member located in the supercharged cover. The first guide member is provided with a relatively inclined first guide blade, which can guide the airflow to flow along a more optimized path, reduce the turbulence of the airflow and the generation of vortices, and further improve the supercharging effect. The second guide blade of the second guide member is located between the supercharged cover and the wind cutting blade, and can evenly guide the airflow from the air outlet end, ensuring that the air after supercharging flows more smoothly, which helps to improve the long-distance air supply effect of the wind speed.

[0019] 2. By setting the first guide member at an inclined angle along the air supply path, the wind cutting blade at the outlet end of the air duct is formed into a spiral blade shape, and the second guide blade is directly opposite to the entire outlet end, the first guide blade at an inclined angle can gradually and stably transport the air in the air duct to the outlet, and coordinate the wind cutting blade to make its outward expansion and divergence more stable and efficient, so that the air in the air duct can be gradually and orderly pressurized and output, which is suitable for guiding and regulating the air inside the air duct, and can significantly reduce the occurrence of turbulence.

[0020] 3. Furthermore, the first guide blade covers the entire cross-sectional area of ​​the air duct and is set at an inclined angle to the central axis of the outer body, which can better guide the airflow, reduce the formation of turbulence, ensure that the airflow flows more smoothly in the air duct, and improve the supercharging effect. The second guide blade is directly opposite to the entire air outlet end, and is used to guide the airflow into the supercharging hood, which achieves the purpose of multi-stage drainage and can significantly improve the supercharging and noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a structural schematic diagram of a new type of supercharged fan according to an embodiment of the present invention;

[0022] Figure 2 is a disassembly schematic diagram of a new type of supercharged fan according to an embodiment of the present invention;

[0023] Figure 3 It is a structural schematic diagram of a guide assembly of a new type of supercharged fan according to an embodiment of the present invention;

[0024] Figure 4It is a structural schematic diagram of the new supercharged fan of an embodiment of the present invention after the supercharged cover is hidden;

[0025] Figure 5 It is a cross-sectional view of the new type of supercharged fan in a disassembled state according to an embodiment of the present invention.

[0026] icon:

[0027] 1-outer body; 11-wind cutting blade; 12-notch;

[0028] 2- Rotating fan blades;

[0029] 3-boost cover; 31-boost channel;

[0030] 4-guide assembly; 41-first guide member; 42-first guide vane; 43-second guide member; 44-second guide vane; 45-pressure relief protrusion. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention.

[0032] Example

[0033] Combination Figures 1 to 5 The present embodiment provides a new type of supercharged fan, including an outer body 1 provided with an air duct, rotating blades 2 rotatably arranged in the outer body 1, a supercharged cover 3 detachably docked to the outer body 1, and a guide component 4 for further guiding the air input into the air duct by the rotating blades 2 to the supercharged cover 3.

[0034] The rotating blade 2 is correspondingly mounted at the air inlet end of the air duct, and the outer body 1 is correspondingly provided with a wind-cutting blade 11 at the air outlet end of the air duct. The guide assembly 4 includes a first guide member 41 provided with a first guide blade 42, and a second guide member 43 provided with a second guide blade 44. The first guide member 41 is mounted in the air duct and located between the rotating blade 2 and the wind-cutting blade 11, and the second guide member 43 is arranged between the wind-increasing cover and the wind-cutting blade 11. The wind-cutting blade 11 is configured in a spiral blade shape suitable for outputting the air in the air duct in a form of external diffusion.

[0035] The first guide blade 42 covers the entire cross-sectional area of ​​the air duct, and the first guide blade 42 is arranged at an angle to the central axis of the outer body 1. The second guide member 43 is arranged on the top of the outer body 1 and is detachably connected to the boost cover 3, and the second guide blade 44 is directly opposite to the entire air outlet end.

[0036] The above-mentioned new type of supercharged fan, by setting a first guide member 41 located in the air duct and a second guide member 43 located in the supercharged cover 3, and the first guide member 41 is provided with a relatively inclined first guide blade 42, which can guide the airflow to flow along a more optimized path, reduce the turbulence of the airflow and the generation of vortices, and further improve the supercharging effect. The second guide blade 44 of the second guide member 43 is located between the supercharged cover 3 and the wind cutting blade 11, and can evenly guide the airflow from the outlet end, ensuring that the air after supercharging flows more smoothly, which helps to improve the long-distance air supply effect of wind speed.

[0037] By setting the first guide member 41 at an inclined angle along the air supply path, the wind cutting blade 11 at the outlet end of the air duct is formed into a spiral blade shape, and the second guide blade 44 is directly opposite the entire air outlet end, the first guide blade 42 at an inclined angle can gradually and stably transport the air in the air duct to the air outlet, and coordinate the wind cutting blade 11 to make its outward expansion and divergence more stable and efficient, so that the air in the air duct can be gradually and orderly pressurized and output, which is suitable for guiding and regulating the air inside the air duct and can significantly reduce the occurrence of turbulence.

[0038] The first guide blade 42 covers the entire cross-sectional area of ​​the air duct and is set at an inclined angle to the central axis of the outer main body 1, which can better guide the airflow, reduce the formation of turbulence, ensure that the airflow flows more smoothly in the air duct, and enhance the supercharging effect. The second guide blade 44 is directly opposite to the entire air outlet end, and is used to guide the airflow to be input into the supercharging cover 3, thereby achieving the purpose of multi-stage drainage, which can significantly enhance the supercharging and noise reduction effect.

[0039] like Figure 2 and Figure 5As shown, in this embodiment, the first guide blade 42 of the first guide member 41 is proportionally reduced relative to the second guide blade 44 of the second guide member 43 and is arranged in the outer body 1, and the first guide blade 42 is directly opposite to the entire air inlet end. On the one hand, the first guide member 41 is suitable for being installed in the inner wall of the outer body 1, and the second guide member 43 is suitable for docking between the outer body 1 and the supercharged cover 3. In order to make the outer diameter of the second guide member 43 consistent with the outer body 1, the outer body 1, the second guide member 43 and the supercharged cover 3 are in an integrated shape from the appearance. For this purpose, the outer diameter of the second guide member 43 is set to be consistent with the outer wall of the outer body 1, so that the size of the second guide member 43 is larger than the size of the first guide member 41. On the other hand, the first guide member 41, which is proportionally reduced, blocks the entire air duct and guides the airflow in the air duct through the first guide blade 42. The second guide member 43 directly faces the entire air outlet end and guides the airflow entering the supercharged cover 3 through the second guide blade 44.

[0040] like Figure 3 As shown, in this embodiment, the first guide blade 42 is set as a plurality of blades, so that the airflow is guided more evenly and distributedly inside the air duct. The plurality of guide blades can carefully control the direction of the airflow and reduce the possibility of turbulence and airflow dispersion. Especially in the initial airflow stage generated by the rotating fan blade 2, the plurality of blades helps to better smooth the airflow. The second guide blade 44 is set as an odd number of blades, which further controls and adjusts the airflow in the boost cover 3. The odd number of blades design can provide a better airflow diffusion effect in aerodynamics, reduce the vortex phenomenon caused by airflow collision, and is particularly suitable for the boost device, which can ensure that the airflow is more evenly guided to the outlet side of the boost cover 3.

[0041] In addition, the number of the second guide blades 44 is greater than the number of the first guide blades 42, which can effectively balance the guiding effect between the two. When the number of the first guide blades 42 is small, the airflow can be more concentratedly guided to the central area of ​​the air duct, while ensuring the stability of the airflow. When the number of the second guide blades 44 is large, the airflow can be further diffused and balanced in speed and direction after passing through the air duct, thereby achieving the purpose of enhancing the airflow diffusion effect. In particular, the two guide blades can ensure the gradual optimization of the airflow at different path stages: when entering the air duct, the plurality of first guide blades 42 achieve preliminary guidance and reduce turbulence. When the airflow passes through the air duct and enters the supercharger cover 3, more second guide blades 44 further optimize and guide the airflow to the outlet, thereby improving the overall air supply effect.

[0042] Preferably, the angle between the first guide blade 42 and the central axis is 30°, the angle between the wind cutting blade 11 and the central axis is 60°, and the second guide blade 44 is arranged parallel to the central axis. Among them, the angle of 30° allows the airflow to be guided at a smaller angle when entering the air duct, which can smooth the flow of the airflow and reduce the resistance and turbulence when entering the air duct. Therefore, the small-angle guide blade can ensure that the airflow flows more closely to the inner wall of the air duct, forming a more uniform airflow layer, and avoiding drastic airflow deflection or vortex in the air duct. At the same time, such a guide angle can create good initial conditions for subsequent pressurization and diffusion.

[0043] The 60° angle enables the wind-cutting blades 11 to more effectively diffuse and guide the airflow laterally. The larger angle ensures that the airflow is pushed out in a spiral diffusion manner when leaving the air duct, thereby enhancing the air supply coverage of the airflow and helping the airflow to quickly and evenly diffuse from the narrow air duct outlet to a larger range, thereby increasing the wind speed and air supply distance. For the supercharging effect, the 60° wind-cutting blades 11 are more conducive to ensuring that the airflow is diffused from a concentrated direction, and can reduce turbulence and noise caused by airflow collision.

[0044] In addition, the second guide blades 44 arranged in parallel provide stable guidance for the last layer of airflow, ensuring that the airflow maintains good fluidity and directionality after leaving the air duct. The parallel blade arrangement can reduce excessive lateral deflection when the airflow is about to be diffused to the booster hood 3, maintain the linear stability of the airflow, avoid excessive disturbance or deflection of the airflow in the final stage, help maintain the stability and uniformity of the airflow, and make the air supply effect more concentrated and long-distance.

[0045] Therefore, the combination of the three angles mentioned above ensures the reasonable guidance and conversion of the airflow at different stages. From the entrance to the exit of the air duct, the airflow gradually transitions from small-angle guidance to large-angle diffusion, and finally outputs stably through parallel guide blades. The progressive layer-by-layer can reduce the formation of turbulence, improve the airflow boosting effect, and effectively reduce the noise during operation, so that the fan can reduce energy loss while maintaining efficient boosting, and can achieve a longer distance air supply effect.

[0046] In this embodiment, the outer body 1 is in a circular tube shape, the first flow guide 41 is in an annular frame shape, the second flow guide 43 is in another annular frame shape with an outer diameter greater than the first flow guide 41, and the second flow guide 43 protrudes toward the boost cover 3 to form a pressure relief protrusion 45. The pressure relief protrusion 45 is a hemispherical body, which can effectively reduce the existence of the internal vacuum area and minimize the adverse effects caused thereby.

[0047] like Figure 2 and Figure 4As shown, in this embodiment, a notch 12 is provided on the top outer edge of the outer body 1, and the notch 12 is used to connect the internal air duct with the outside. The notch 12 allows outside air to enter the internal air duct of the fan, enhancing the air circulation, helping to avoid the temperature rise caused by excessive circulation of the internal air, thereby avoiding the overheating of the motor parts or other internal structural parts when the fan works for a long time. Especially in portable or compact booster fans, the opening of the notch 12 is particularly critical. Due to the small size of the device and limited heat dissipation space, the notch 12 can provide an additional air channel, improve the overall heat dissipation capacity of the fan, and extend the service life of the fan.

[0048] In addition, the connection between the internal air duct and the outside world can prevent the pressure inside the air duct from being too high, thereby reducing the air flow turbulence caused by high pressure. Obviously, a closed air duct will cause a large pressure difference when the airflow flows at high speed. This pressure difference is likely to cause eddies and turbulence, affecting the efficiency and stability of the fan. Therefore, by setting a notch 12 at the top outer edge, the airflow pressure in the air duct can be partially released, avoiding excessive blockage or turbulence in the airflow inside the fan, making the airflow more stable and the boosting effect more significant.

[0049] like Figure 5 As shown, in this embodiment, a boost channel 31 is further provided between the second air guide 43 and the boost cover 3, and the boost cover 3 is constructed to be open at both ends, one of which is connected to the second air guide 43, and the other opening extends outward to supply air. The boost channel 31 is used to effectively optimize the path of the airflow. After the airflow inside the fan is delivered to the second air guide 43, the boost channel 31 further guides the airflow to be delivered to the boost cover 3, which not only ensures that the airflow enters the boost cover 3 with a higher pressure and a more stable state, but also reduces the turbulence of the airflow during the flow diversion process, so that the airflow enters the next stage more smoothly. The boost channel 31 provides additional airflow acceleration space within a limited volume, ensuring that the air passing through the air duct obtains sufficient speed and pressure when entering the boost cover 3, thereby greatly improving the air supply distance and wind speed.

[0050] Specifically, the boost channel 31 is formed in the boost cover 3, and the inner wall of the boost cover 3 is correspondingly constructed into a hollow waist-shaped mouth to form the boost channel 31 that changes from large to small and then to large. As a result, the airflow is effectively compressed and diffused. The airflow first enters the boost channel 31 through a larger inlet. During the flow process, the airflow is compressed as the channel gradually narrows, thereby increasing the pressure and speed of the airflow. As the airflow enters the narrowest waist-shaped middle area, the speed of the airflow reaches the maximum, and then when the airflow enters the gradually larger outlet, the airflow diffuses again, maintaining a high-speed state, while forming a uniform airflow output. As a result, the air volume distribution is further optimized, and the airflow is evenly diffused after compression, making the output airflow more uniform and concentrated, thereby achieving long-distance stable air supply.

[0051] In this embodiment, an installation cavity for assembling motor components is formed between the rotating fan blades 2 and the first guide member 41, so that the motor components are compactly integrated into the internal structure of the fan, effectively reducing the overall volume of the product. By reasonably arranging the motor installation space between the fan blades and the guide assembly, waste of internal space is avoided. At the same time, the appearance of the fan is made more simple and beautiful, which is suitable for portable or compact design.

[0052] The rotating blades 2, the first guide 41, the wind-cutting blades 11 and the second guide 43 are coaxially arranged, thereby ensuring that the various structural components guiding the airflow inside the fan can maintain a high degree of symmetry and consistency. The coaxial arrangement can reduce the direction deflection or resistance change of the airflow when passing through each component, thereby improving the stability and flow efficiency of the airflow. The coaxial structure enables the airflow to maintain a consistent flow path in the process from the rotating blades 2 to the guide and then to the wind-cutting blades 11, reducing airflow turbulence, improving the supercharging effect of the fan, and reducing noise.

[0053] In the present embodiment, the wind cutting blade 11 is a carbon fiber composite material, and the first guide blade 42 and the second guide blade 44 are coated with a layer of noise reduction coating. Obviously, the lightweight characteristics of the carbon fiber material can effectively reduce the inertia of the entire fan, making the blades easier to accelerate and decelerate, and improving the response speed and efficiency of the fan. In addition, the lighter blades can reduce the energy consumption of the motor components and extend the service life of the motor, which is particularly suitable for portable and long-term use products. In addition, the noise reduction coating usually adopts special materials and texture designs, which can effectively reduce the friction noise between the airflow and the blade surface and reduce the noise generated by turbulence. Not only does it help to reduce noise, but it can also optimize the airflow. The special texture and material properties of the coating can reduce the turbulence and disturbance generated when the airflow passes through the guide blades, ensure the streamline and stability of the airflow, and further improve the working efficiency of the fan.

[0054] The above are only preferred implementations of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention.

Claims

1. A new type of supercharged fan, comprising an outer body provided with an air duct, a rotating blade rotatably arranged in the outer body, a supercharged cover detachably connected to the outer body, and a guide assembly for further guiding the air input into the air duct by the rotating blade to the supercharged cover; the rotating blade is correspondingly installed at the air inlet end of the air duct, and the outer body is correspondingly provided with a wind cutting blade at the air outlet end of the air duct; characterized in that, The guide assembly includes a first guide member provided with a first guide blade, and a second guide member provided with a second guide blade; the first guide member is installed in the air duct and located between the rotating fan blade and the wind cutting blade, and the second guide member is arranged between the wind increasing cover and the wind cutting blade; and, The wind cutting blade is configured to be a spiral blade suitable for outputting the air in the air duct in the form of outward diffusion; the first guide blade covers the entire cross-sectional area of ​​the air duct, and the first guide blade is set at an inclined angle to the central axis of the outer body; the second guide member is configured at the top of the outer body and is detachably connected to the boost cover, and the second guide blade is directly opposite to the entire air outlet end.

2. The new supercharged fan according to claim 1 is characterized in that: The first guide blade of the first guide member is proportionally reduced relative to the second guide blade of the second guide member and is arranged in the outer body, and the first guide blade is directly opposite to the entire air inlet end.

3. The new type of supercharged fan according to claim 2 is characterized in that: The first guide blades are arranged as a plurality of blades, the second guide blades are arranged as a singular blade, and the number of the second guide blades is greater than the number of the first guide blades.

4. The new type of supercharged fan according to claim 2 is characterized in that: The included angle between the first guide blade and the central axis is 30°, the included angle between the wind cutting blade and the central axis is 60°, and the second guide blade is arranged parallel to the central axis.

5. The new type of supercharged fan according to claim 4 is characterized in that: The outer body is in a circular tube shape, the first flow guide is in an annular frame shape, the second flow guide is in another annular frame shape with an outer diameter greater than the first flow guide, and the second flow guide protrudes toward the supercharger cover to form a pressure-discharging protrusion.

6. The new type of supercharged fan according to claim 5 is characterized in that: A notch is arranged on the top outer edge of the outer body, and the notch is used to connect the internal air duct with the outside.

7. The new type of supercharged fan according to claim 1 is characterized in that: A pressurization channel is also provided between the second air guide and the pressurization cover. The pressurization cover is constructed with openings at both ends, one of which is connected to the second air guide, and the other opening extends outward to supply air.

8. The new type of supercharged fan according to claim 7 is characterized in that: The boost channel is formed in the boost cover, and the inner wall of the boost cover is correspondingly constructed to form a hollow waist-shaped mouth to form the boost channel that changes from large to small and then to large.

9. The new type of supercharged fan according to claim 1, characterized in that: An installation cavity for assembling the motor component is formed between the rotating fan blade and the first flow guide, and the rotating fan blade, the first flow guide, the wind cutting blade and the second flow guide are coaxially arranged.

10. The new type of supercharged fan according to claim 1, characterized in that: The wind cutting blade is made of carbon fiber composite material, and the first guide blade and the second guide blade are both coated with a layer of noise reduction coating.

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