Noise reduction structure of high-speed fan

Abstract

The utility model provides a noise reduction structure of a high-speed fan, which relates to the technical field of fans and comprises a shell, an air outlet and an air inlet are respectively formed on two opposite sides of the shell, an air outlet channel and a motor are sequentially arranged between the air outlet and the air inlet, a first opening and a second opening which are opposite are formed in the air outlet channel, and the first opening is communicated with the air outlet; a first noise reduction structure is connected to the first opening, an air blocking block is arranged in the middle of the interior of the air guide ring, and the air blocking block and the air guide ring are connected through a plurality of air guide plates; the first opening is connected with a first noise reduction structure, the second opening is connected with a second noise reduction structure, the second noise reduction structure comprises a rectifying plate, and a plurality of air inlet holes are formed in the rectifying plate, the first noise reduction structure and the second noise reduction structure are arranged at the two ends of the air outlet channel provided with the fan respectively, and the first noise reduction structure and the second noise reduction structure rectify airflow in the air outlet direction; noise caused by disordered airflow is reduced, the purpose of noise reduction is achieved structurally, frequent replacement of noise reduction consumables is avoided, the noise reduction effect is obvious, and the noise reduction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, and more specifically, to a noise reduction structure for a high-speed fan. Background Art

[0002] During daily life and work, a fan is usually used for heat dissipation and cooling. Due to factors such as the air flow inside the fan and the friction with the components located inside the fan, the fan will generate relatively large noise. The above-mentioned fan device has problems such as high working noise and poor user experience.

[0003] Currently, noise reduction devices such as sound-absorbing cotton for reducing noise are provided inside the fan. However, the current fan has a relatively single treatment of the above noise, resulting in poor treatment effect. In addition, the noise reduction ability of the sound-absorbing cotton decreases after long-term use, and the internal structure of the fan is complex and difficult to replace. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a noise reduction structure for a high-speed fan, aiming at the above problems in the prior art. By setting a rectifying structure at the air outlet position and the air inlet position of the fan, the purpose of noise reduction is achieved, and the noise reduction cost is reduced.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] The utility model provides a noise reduction structure for a high-speed fan, which includes a housing. Opposite sides of the housing respectively form an air outlet and an air inlet. An air outlet passage and a motor are sequentially arranged between the air outlet and the air inlet;

[0007] Along the air outlet direction of the housing, the air outlet passage forms opposite first and second openings. The first opening communicates with the air outlet. A fan is arranged in the air outlet passage and is driven by the motor;

[0008] A first noise reduction structure is connected to the first opening. The first noise reduction structure includes a wind guide ring for fixing on the first opening. A wind blocking block is arranged at the middle position inside the wind guide ring. The wind blocking block and the wind guide ring are connected by a plurality of wind guide plates, and the plurality of wind guide plates are evenly distributed around the wind blocking block and extend along the air outlet direction;

[0009] A second noise reduction structure is connected to the second opening. The second noise reduction structure includes a rectifying plate, and a plurality of air inlet holes are formed on the rectifying plate and extend along the air outlet direction.

[0010] Optionally, a dust-proof ring is arranged on the end face of the wind guide ring away from the air outlet passage, and the dust-proof ring inclines outwards;

[0011] A plurality of noise reduction blocks are evenly arranged on the inner wall of the wind guide ring, and the noise reduction blocks are sound-absorbing cotton.

[0012] Optionally, a plurality of buckles are evenly arranged on one side of the air guide ring facing the air outlet channel. A protrusion is formed on the outer side of the buckle. A card hole is arranged at the position of the air outlet channel corresponding to the buckle. The protrusion extends into the corresponding card hole to fix the air guide ring in the air outlet channel.

[0013] Optionally, a layer of noise reduction layer is arranged on the inner wall of the air outlet channel, and the material of the noise reduction layer is sound-absorbing cotton.

[0014] Optionally, the shape of the air inlet hole is honeycomb-shaped, circular or polygonal.

[0015] Optionally, a first dust-proof net is arranged at the connection between the air guide ring and the dust-proof ring;

[0016] A second dust-proof net is arranged on the air inlet.

[0017] Optionally, the motor is installed on the installation platform, and a plurality of damping shock absorbers are arranged between the installation platform and the bottom inside the housing.

[0018] Optionally, a fixing ring is arranged around the rectifying plate, and the fixing ring is used to fix the rectifying plate on the air outlet channel;

[0019] An installation hole is arranged at the middle position of the rectifying plate, and the motor shaft of the motor passes through the installation hole to connect the fan.

[0020] Optionally, a plurality of connecting plates are evenly arranged at one end of the fixing ring facing the air outlet channel. The connecting plates extend towards the air outlet direction. A convex block is arranged on the inner side of the connecting plate. An L-shaped groove is arranged at the position of the air outlet channel corresponding to the connecting plate. The L-shaped groove communicates with the end face of the second opening. The convex block is clamped at the turning position of the L-shaped groove to fix the air outlet channel and the fixing ring.

[0021] The beneficial effects of the present utility model include: The present utility model provides a noise reduction structure for a high-speed fan, which includes a housing. Opposite sides of the housing respectively form an air outlet and an air inlet. An air outlet channel and a motor are sequentially arranged between the air outlet and the air inlet. Along the air outlet direction of the housing, the air outlet channel forms opposite first and second openings. The first opening communicates with the air outlet, and a fan is arranged in the air outlet channel and is driven by the motor. A first noise reduction structure is connected to the first opening. The first noise reduction structure includes a wind guiding ring, which is used to be fixed on the first opening. A wind blocking block is arranged at the middle position inside the wind guiding ring. The wind blocking block and the wind guiding ring are connected by a plurality of wind guiding plates, and the plurality of wind guiding plates are evenly distributed around the wind blocking block and extend along the air outlet direction. A second noise reduction structure is connected to the second opening. The second noise reduction structure includes a rectifying plate, and a plurality of air inlet holes are formed on the rectifying plate and extend along the air outlet direction. The present utility model respectively arranges the first noise reduction structure and the second noise reduction mechanism at both ends of the air outlet channel. The first noise reduction structure and the second noise reduction structure rectify the air flow along the air outlet direction, reduce the noise caused by the turbulent air flow, achieve the purpose of noise reduction in terms of structure, avoid frequent replacement of noise reduction consumables, have an obvious noise reduction effect, and reduce the noise reduction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0023] Figure 1 FIG. 1 is one of the structural schematic diagrams of a noise reduction structure for a high-speed fan provided by an embodiment of the present application;

[0024] Figure 2 FIG. 2 is another structural schematic diagram of a noise reduction structure for a high-speed fan provided by an embodiment of the present application;

[0025] Figure 3 FIG. 3 is yet another structural schematic diagram of a noise reduction structure for a high-speed fan provided by an embodiment of the present application;

[0026] Figure 4 FIG. 4 is still another structural schematic diagram of a noise reduction structure for a high-speed fan provided by an embodiment of the present application;

[0027] Figure 5 FIG. 5 is yet still another structural schematic diagram of a noise reduction structure for a high-speed fan provided by an embodiment of the present application;

[0028] Figure 6 FIG. 6 is the structural schematic diagram of the first noise reduction structure provided by an embodiment of the present application;

[0029] Figure 7 Schematic diagram of the second noise reduction structure provided by the embodiment of the present application;

[0030] Figure 8 Schematic diagram of the air outlet channel provided by the embodiment of the present application.

[0031] Icons: 10 - housing; 11 - mounting block; 12 - air outlet; 13 - air inlet; 14 - damping shock absorber; 15 - mounting platform; 16 - support frame; 20 - air outlet channel; 21 - L-shaped groove; 22 - clamping hole; 30 - first noise reduction structure; 31 - air guiding ring; 32 - dust-proof ring; 33 - wind blocking block; 34 - buckle; 35 - protrusion; 36 - air guiding plate; 37 - first dust-proof net; 40 - second noise reduction structure; 41 - fixing ring; 42 - connecting plate; 43 - rectifying plate; 44 - air inlet hole; 45 - mounting hole; 50 - noise reduction layer; 60 - noise reduction block. Detailed implementation manners

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but merely represents the selected embodiments of the present application. It should be noted that, without conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the protection scope of the present application.

[0033] Currently, noise reduction devices such as sound-absorbing cotton for reducing noise are provided inside the fan to reduce noise. However, the current fan has a relatively single treatment for the above noise, resulting in poor treatment effects. In addition, the noise reduction ability of the sound-absorbing cotton decreases after long-term use, and the internal structure of the fan is complex and difficult to replace. To solve the above problems, the embodiment of the present application provides a noise reduction structure for a high-speed fan, which respectively sets noise reduction and rectification structures at the air outlet position and the air inlet position of the fan to achieve the purpose of noise reduction, extend the service life of the noise reduction structure in terms of structure, and reduce the noise reduction cost.

[0034] As Figure 1As shown in the figure, the direction indicated by the arrow is the air outlet direction. The noise reduction structure of the high-speed fan provided by the embodiment of the present application includes a housing 10. A plurality of mounting blocks 11 are arranged on the outer side of the housing 10 for mounting and fixing the housing 10. Opposite sides of the housing 10 respectively form an air outlet 12 and an air inlet 13. An air outlet passage 20 and a motor are sequentially arranged between the air outlet 12 and the air inlet 13. Along the air outlet direction of the housing 10, the air outlet passage 20 forms opposite first and second openings. The first opening communicates with the air outlet 12. A fan is arranged in the air outlet passage 20 and is driven by the motor. A first noise reduction structure 30 is connected to the first opening. The first noise reduction structure 30 includes a wind guiding ring 31 for fixing on the first opening. A wind blocking block 33 is arranged at the middle position inside the wind guiding ring 31. The wind blocking block 33 and the wind guiding ring 31 are connected by a plurality of wind guiding plates 36. The plurality of wind guiding plates 36 are evenly distributed around the wind blocking block 33 and extend along the air outlet direction. A second noise reduction structure 40 is connected to the second opening. The second noise reduction structure 40 includes a rectifying plate 43, and a plurality of air inlet holes 44 are formed on the rectifying plate 43. The plurality of air inlet holes 44 extend along the air outlet direction. Figure 2 It is a schematic structural diagram of the air inlet 13 perspective of the housing 10. Figure 3 It is a schematic structural diagram inside the housing 10.

[0035] As Figure 4 , Figure 5 As shown in the figure, the first opening of the air outlet passage 20 is fixed on the air outlet 12 of the housing. The air outlet passage is fixed inside the housing 10 through a mounting frame 16. A fan is arranged in the air outlet passage 20. Air flows in from the air inlet 13 of the housing 10 and sequentially passes through the second opening and the first opening (air outlet 12) of the air outlet passage 20. A second noise reduction structure 40 is arranged on the second opening. The air flow passes through the rectifying plate 43 of the second noise reduction structure 40 to reduce the turbulent air flow and reduce the noise. A first noise reduction structure 30 is connected to the first opening. The first noise reduction structure 30 is divided into a plurality of small air outlet areas by the wind guiding plates 36 to rectify the passing air flow to achieve the noise reduction effect.

[0036] Specifically, as Figure 6 shown, a dust-proof ring 32 is arranged on the end face of the wind guiding ring 31 away from the air outlet passage 20. The dust-proof ring 32 is inclined outwards to prevent dust from entering the inside of the air outlet passage 20 and causing noise. A plurality of noise reduction blocks 60 are arranged on the inner wall of the wind guiding ring 31. The noise reduction blocks 60 are sound-absorbing cotton.

[0037] Further, a plurality of buckles 34 are evenly arranged on one side of the air guide ring 31 facing the air outlet passage 20. A protrusion 35 is formed on the outer side of the buckle 34. A clamping hole 22 is arranged at the position of the air outlet passage 20 corresponding to the buckle 34. The protrusion 35 extends into the corresponding clamping hole 22 for fixing the air guide ring 31 in the air outlet passage 20. When installing the air guide ring 31 into the air outlet passage 20, the air guide ring 31 is pushed into the air outlet passage 20, and the buckle 34 and its corresponding clamping hole 22 are clamped, so that the air guide ring 31 can be fixed in the air outlet passage 20.

[0038] In the embodiment of the present application, a layer of noise reduction layer 50 is arranged on the inner wall of the air outlet passage 20, and the noise reduction layer 50 is sound-absorbing cotton.

[0039] Specifically, a first dust-proof net 37 is arranged at the connection between the air guide ring 31 and the dust-proof ring 32; a second dust-proof net is arranged on the air inlet 13 to prevent dust from entering the interior of the fan.

[0040] Exemplarily, as Figure 7 shown, a fixing ring 41 is arranged around the rectifying plate 43, and the fixing ring 41 is used to fix the rectifying plate 43 on the air outlet passage 20; an installation hole 45 is arranged at the middle position of the rectifying plate 43, and the motor shaft of the motor passes through the installation hole 45 to connect the fan.

[0041] Further, a plurality of connecting plates 42 are evenly arranged at one end of the fixing ring 41 facing the air outlet passage 20. The connecting plates 42 extend in the air outlet direction. A convex block is arranged on the inner side of the connecting plate 42. An L-shaped groove 21 is arranged at the position of the air outlet passage 20 corresponding to the connecting plate 42. The L-shaped groove 21 communicates with the end face of the second opening. The convex block is clamped at the turning position of the L-shaped groove 21 to fix the air outlet passage 20 and the fixing ring 41. When installing the fixing ring 41, the connecting plate 42 is inserted into the L-shaped groove 21 at the corresponding position. When reaching the turning position of the L-shaped groove 21, the fixing ring 41 is rotated relative to the air outlet passage 20, and the convex block of the connecting plate 42 is clamped at the turning position of the L-shaped groove 21, so that the air outlet passage 20 and the fixing ring 41 can be fixed.

[0042] Specifically, the shape of the air inlet hole 44 is honeycomb-shaped, circular or polygonal, and the shape of the air inlet hole 44 in the embodiment of the present application is honeycomb-shaped.

[0043] Specifically, as Figure 1 shown, the motor is installed on the installation platform 15, and a plurality of damping shock absorbers 14 are arranged between the installation platform 15 and the bottom inside the housing 10 to reduce noise by reducing the vibration caused by the rotation of the motor.

[0044] A noise reduction structure for a high-speed fan provided by the present utility model is provided with a variety of noise reduction structures, and the noise reduction effect is obvious. The noise reduction structure includes: 1) A first noise reduction structure 30 and a second noise reduction structure 40 are respectively arranged at both ends of the air outlet passage 20 to rectify the air flow passing through the air outlet passage 20 and reduce the noise caused by the turbulent air flow; 2) A dust-proof ring 32, a first dust-proof net 37, and a second dust-proof net are provided to prevent dust from entering the interior of the fan and avoid the noise caused by dust adhering to the rotating shaft; 3) A layer of noise reduction layer 50 is arranged on the inner wall of the air outlet passage 20, and a plurality of noise reduction blocks 60 are arranged on the inner wall of the air guide ring 31; 4) The motor is installed on the installation platform 15, and a plurality of damping shock absorbers 14 are arranged between the installation platform 15 and the bottom inside the housing 10 to reduce the noise caused by the vibration generated by the rotation of the motor.

[0045] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A noise reduction structure for a high-speed fan, characterized in that, It includes a housing (10), and air outlets (12) and an air inlet (13) are respectively formed on two opposite sides of the housing (10). An air outlet channel (20) and a motor are sequentially arranged between the air outlet (12) and the air inlet (13). Along the air outlet direction of the housing (10), the air outlet channel (20) forms opposite first and second openings. The first opening communicates with the air outlet (12). A fan is arranged in the air outlet channel (20), and the fan is driven by the motor. A first noise reduction structure (30) is connected to the first opening. The first noise reduction structure (30) includes a wind guide ring (31) which is used to be fixed on the first opening. A wind blocking block (33) is arranged at the middle position inside the wind guide ring (31). The wind blocking block (33) and the wind guide ring (31) are connected by a plurality of wind guide plates (36). The plurality of wind guide plates (36) are evenly distributed around the wind blocking block (33), and the wind guide plates (36) extend along the air outlet direction. A second noise reduction structure (40) is connected to the second opening. The second noise reduction structure (40) includes a rectifying plate (43), and a plurality of air inlet holes (44) are formed on the rectifying plate (43). The plurality of air inlet holes (44) extend along the air outlet direction.

2. The noise reduction structure of the high-speed fan according to claim 1, characterized in that, A dust-proof ring (32) is arranged on the end face of the wind guide ring (31) away from the air outlet channel (20), and the dust-proof ring (32) inclines outwards. A plurality of noise reduction blocks (60) are arranged on the inner wall of the wind guide ring (31), and the noise reduction blocks (60) are sound-absorbing cotton.

3. The noise reduction structure of the high-speed fan according to claim 1, wherein, A plurality of buckles (34) are evenly arranged on the side of the wind guide ring (31) facing the air outlet channel (20). A protrusion (35) is formed on the outer side of the buckle (34). A card hole (22) is arranged at the position of the air outlet channel (20) corresponding to the buckle (34). The protrusion (35) extends into the corresponding card hole (22) to fix the wind guide ring (31) in the air outlet channel (20).

4. The noise reduction structure of the high-speed fan according to claim 1, characterized in that, A layer of noise reduction layer (50) is arranged on the inner wall of the air outlet channel (20), and the noise reduction layer (50) is sound-absorbing cotton.

5. The noise reduction structure of the high-speed fan according to claim 2, wherein, A first dust-proof net (37) is arranged at the connection position of the wind guide ring (31) and the dust-proof ring (32). A second dust-proof net is arranged on the air inlet (13).

6. The noise reduction structure of the high-speed fan according to claim 1, characterized in that A fixing ring (41) is arranged around the rectifying plate (43), and the fixing ring (41) is used to fix the rectifying plate (43) on the air outlet channel (20). An installation hole (45) is arranged at the middle position of the rectifying plate (43), and the motor shaft of the motor passes through the installation hole (45) to connect the fan.

7. The noise reduction structure of the high-speed fan according to claim 6, characterized in that, A plurality of connecting plates (42) are uniformly arranged at one end of the fixing ring (41) facing the air outlet channel (20). The connecting plates (42) extend towards the air outlet direction. A convex block is arranged inside the connecting plates (42). An L-shaped groove (21) is arranged at a position of the air outlet channel (20) corresponding to the connecting plates (42). The L-shaped groove (21) communicates with the end face of the second opening. The convex block is clamped at the turning position of the L-shaped groove (21) to fix the air outlet channel (20) and the fixing ring (41).

8. The noise reduction structure of the high-speed fan according to claim 1, characterized in that The shape of the air inlet hole (44) is honeycomb-shaped, circular or polygonal.

9. The noise reduction structure of the high-speed fan according to claim 1, characterized in that, The motor is installed on the installation platform (15), and a plurality of damping shock absorbers (14) are arranged between the installation platform (15) and the bottom inside the housing (10).

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