Fan noise reduction structure

Abstract

The utility model provides a fan noise reduction structure, which relates to the technical field of fans, including: a pipe assembly, a support assembly is arranged at a position near the rear side of the interior of the pipe assembly, and a fan assembly is arranged at the front side of the support assembly. In the utility model, the fan assembly is movably installed inside the inner pipe through the support assembly, and the support force is provided by the shock-absorbing assemblies on all sides. When the fan assembly generates vibration during operation, the damper and spring in the shock-absorbing assembly cooperate to achieve the effect of buffering and absorbing energy, and the freely rotating wheel frame cooperates with the movable wheel to convert the sliding friction between the damper and the spring and the circular shell into rolling friction, thereby ensuring noise reduction while reducing the noise generated by friction, and effectively reducing friction damage. The overall structure is reasonable, which can effectively suppress the vibration generated during the operation of the motor, thereby achieving the effect of reducing the fan noise and avoiding problems that affect people's quality of life.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a noise reduction structure of a fan. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Fan is the customary abbreviation for gas compression and gas delivery machinery. Commonly referred to fans include ventilators, blowers, and wind turbines.

[0003] However, the fan requires the motor to provide mechanical energy during operation, which will generate vibration and noise. The more powerful the fan, the greater the noise it generates, which in turn affects people's lives. Therefore, we propose a new fan noise reduction structure. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that the fan needs a motor to provide mechanical energy during operation, which will generate vibration and noise. The higher the power of the fan, the greater the noise it generates, which in turn affects people's lives. A fan noise reduction structure is proposed to solve the problem that the fan needs a motor to provide mechanical energy during operation, which will generate vibration and noise in the process.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fan noise reduction structure, comprising: a pipeline assembly, a support assembly is arranged at a position near the rear side of the interior of the pipeline assembly, a fan assembly is arranged on the front side of the support assembly, a plurality of shock-absorbing assemblies are arranged on the inner surface wall of the pipeline assembly, the pipeline assembly includes an inner pipeline, the fan assembly includes a circular shell, the number of the shock-absorbing assemblies is set to multiple, and the multiple shock-absorbing assemblies all include a first mounting block, the first mounting block is fixedly connected to the inner surface wall of the inner pipeline at equal intervals, the opposite side outer surfaces of the multiple first mounting blocks are fixedly connected with dampers, the opposite side end surfaces of the multiple dampers are fixedly connected with second mounting blocks, the opposite side outer surfaces of the multiple second mounting blocks are rotatably connected with wheel frames, movable wheels are rotatably connected between the inner surface walls of the wheel frames, and the outer sleeves of the dampers are provided with springs.

[0006] Preferably, a second mounting frame is fixedly connected between the inner surface walls of the circular shell, a motor is mounted at the center of the rear surface of the second mounting frame, and the output end of the motor slides through the rear surface of the second mounting frame and extends to the front side.

[0007] Preferably, the output end of the motor is fixedly connected with a fan blade, and the outer surfaces of the plurality of movable wheels are in contact with the outer surface of the circular shell.

[0008] Preferably, the support assembly includes a first connecting member, the first connecting member is fixedly connected between the inner surface walls of the inner pipe and is longitudinally arranged, and the front surface of the first connecting member is longitudinally slidably connected to a first sliding block.

[0009] Preferably, the front surface of the first sliding block is fixedly connected to the second connecting member, and the front surface of the second connecting member is laterally slidably connected to the second sliding block.

[0010] Preferably, a first mounting bracket is fixedly connected to the front surface of the second sliding block, and an outer surface of the first mounting bracket is connected to an inner surface wall of the circular shell.

[0011] Preferably, the outer surface of the inner pipe is connected to a shock-absorbing layer, and the outer surface of the shock-absorbing layer is connected to an outer pipe.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, the fan assembly is movably installed inside the inner pipe through the support assembly, and the support force is provided by the shock-absorbing assemblies on all sides. When the fan assembly generates vibration during operation, the damper and spring in the shock-absorbing assembly cooperate to achieve the effect of buffering and absorbing energy, and the freely rotating wheel frame cooperates with the movable wheel to convert the sliding friction between the damper and the spring and the circular shell into rolling friction, thereby ensuring noise reduction while reducing the noise generated by friction, and effectively reducing friction damage. The overall structure is reasonable, which can effectively suppress the vibration generated during the operation of the motor, thereby achieving the effect of reducing the fan noise and avoiding problems affecting people's quality of life.

[0014] 2. In the utility model, when the motor drives the fan blades to vibrate during operation, the first mounting frame used to support the connected circular shell will move left and right with the vibration under the cooperation of the second slider and the second connecting piece, and move up and down with the vibration under the cooperation of the second connecting piece and the first slider, thereby providing support for the fan assembly while also avoiding the vibration of the fan assembly from being directly transmitted to the inner pipe. When the residual energy generated by the vibration is transmitted to the inner pipe, the shock-absorbing layer can effectively absorb it, thereby allowing the external pipe used for supporting the connection during the operation of the fan assembly to maintain stability, thereby ensuring the noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of the fan noise reduction structure proposed in the utility model;

[0016] Figure 2 This is a schematic diagram of the pipeline component structure of the fan noise reduction structure proposed in the utility model;

[0017] Figure 3This is a schematic diagram of the support component structure of the fan noise reduction structure proposed in the utility model;

[0018] Figure 4 This is a schematic diagram of the fan assembly structure of the fan noise reduction structure proposed in the utility model;

[0019] Figure 5 The utility model provides a schematic diagram of the structure of the vibration reduction component of the fan noise reduction structure.

[0020] Legend: 1. Pipe assembly; 101. Outer pipe; 102. Shock-absorbing layer; 103. Inner pipe; 2. Support assembly; 201. First connecting piece; 202. First slider; 203. Second connecting piece; 204. Second slider; 205. First mounting bracket; 3. Fan assembly; 301. Round shell; 302. Second mounting bracket; 303. Motor; 304. Fan blade; 4. Shock-absorbing assembly; 401. First mounting block; 402. Damper; 403. Spring; 404. Second mounting block; 405. Wheel frame; 406. Movable wheel. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1-Figure 5As shown, the utility model provides a fan noise reduction structure, including: a pipeline component 1, a support component 2 is arranged near the rear side of the pipeline component 1, a fan component 3 is arranged on the front side of the support component 2, a plurality of shock absorbing components 4 are arranged on the inner surface wall of the pipeline component 1, the pipeline component 1 includes an inner pipeline 103, the fan component 3 includes a circular shell 301, the number of shock absorbing components 4 is set to be multiple, and the multiple shock absorbing components 4 all include a first mounting block 401, the first mounting block 401 is equidistantly fixedly connected to the inner surface wall of the inner pipeline 103, the outer surfaces of the opposite sides of the multiple first mounting blocks 401 are fixedly connected with dampers 402, and the multiple dampers 402 are arranged on the opposite sides of the multiple dampers 402. The opposite end faces are fixedly connected with second mounting blocks 404, the opposite side outer surfaces of the plurality of second mounting blocks 404 are rotatably connected with wheel frames 405, the inner surface walls of the wheel frames 405 are rotatably connected with movable wheels 406, the outer sleeve of the damper 402 is provided with a spring 403, the inner surface walls of the circular shell 301 are fixedly connected with a second mounting frame 302, a motor 303 is installed at the center of the rear surface of the second mounting frame 302, the output end of the motor 303 slides through the rear surface of the second mounting frame 302 and extends to the front side, the output end of the motor 303 is fixedly connected with a fan blade 304, and the outer surfaces of the plurality of movable wheels 406 are in contact with the outer surface of the circular shell 301.

[0024] The effect achieved by the entire embodiment 1 is that when the motor 303 on the surface of the second mounting frame 302 inside the circular shell 301 is started to drive the fan blades 304 to generate wind force and generate noise due to vibration, the externally movable circular shell 301 is squeezed by the surrounding shock absorbing components 4 and supported at a position close to the center of the inner pipe 103. When the motor 303 vibrates, the circular shell 301 moves with the vibration. At this time, the damper 402 and the spring 403 in the shock absorbing component 4 absorb the energy generated by the vibration through expansion and contraction, thereby achieving a noise reduction effect. In addition, the second mounting block 404 and the damper 40 The wheel frame 405 connected to the spring 403 will drive the movable wheel 406 to press tightly against the circular shell 301. At the same time, during the vibration process, the wheel frame 405 will rotate along the vibration direction, and the movable wheel 406 will rotate, thereby converting the sliding friction between the damper 402 and the spring 403 and the circular shell 301 into rolling friction, thereby ensuring noise reduction while reducing the noise generated by friction, and effectively reducing friction damage. The overall structure is reasonable, which can effectively suppress the vibration generated during the operation of the motor 303, thereby playing an effect of reducing the noise of the fan and avoiding problems that affect people's quality of life.

[0025] Embodiment 2, as Figure 1-Figure 4As shown, the support assembly 2 includes a first connecting member 201, which is fixedly connected between the inner walls of the inner pipe 103 and is longitudinally arranged, the front surface of the first connecting member 201 is longitudinally slidably connected to the first slider 202, the front surface of the first slider 202 is fixedly connected to the second connecting member 203, the front surface of the second connecting member 203 is transversely slidably connected to the second slider 204, the front surface of the second slider 204 is fixedly connected to the first mounting bracket 205, the outer surface of the first mounting bracket 205 is connected to the inner wall of the circular shell 301, the outer surface of the inner pipe 103 is connected to the shock-absorbing layer 102, and the outer surface of the shock-absorbing layer 102 is connected to the outer pipe 101.

[0026] The effect achieved by the entire embodiment 2 is that when the motor 303 drives the fan blades 304 to generate vibration during operation, the first mounting frame 205 used to support the circular shell 301 will move left and right with the vibration under the cooperation of the second slider 204 and the second connecting member 203, and move up and down with the vibration under the cooperation of the second connecting member 203 and the first slider 202, thereby providing support for the fan assembly 3 while also avoiding the vibration of the fan assembly 3 from being directly transmitted to the inner pipe 103. When the residual energy generated by the vibration is transmitted to the inner pipe 103, the shock-absorbing layer 102 can effectively absorb it, thereby allowing the external pipe 101 used for supporting the connection during the operation of the fan assembly 3 to maintain stability, thereby ensuring the noise reduction effect.

[0027] Working principle: when the motor 303 on the surface of the second mounting frame 302 inside the circular shell 301 is started to drive the fan blades 304 to generate wind force and generate noise due to vibration, the external movable circular shell 301 is squeezed by the surrounding shock-absorbing components 4 and supported in a position close to the center of the inner pipe 103. When the motor 303 vibrates, the circular shell 301 will move along with the vibration. At this time, the damper 402 and spring 403 in the shock-absorbing component 4 absorb the energy generated by the vibration through expansion and contraction, thereby achieving the effect of noise reduction. The wheel frame 405 connected by the second mounting block 404, the damper 402 and the spring 403 will drive the movable wheel 406 to press tightly against the circular shell 301. At the same time, during the vibration process, the wheel frame 405 will rotate along the vibration direction, and the movable wheel 406 will rotate, thereby converting the sliding friction between the damper 402 and the spring 403 and the circular shell 301 into rolling friction, thereby ensuring noise reduction while reducing the noise generated by friction. The noise is reduced and the friction damage is effectively reduced. The overall structure is reasonable, which can effectively suppress the vibration generated during the operation of the motor 303, thereby reducing the noise of the fan and avoiding the problem of affecting people's quality of life. When the motor 303 drives the fan blades 304 to vibrate during operation, the first mounting frame 205 used to support the circular shell 301 will move left and right with the vibration under the cooperation of the second slider 204 and the second connecting member 203, and move up and down with the vibration under the cooperation of the second connecting member 203 and the first slider 202, thereby providing support for the fan assembly 3 while avoiding the vibration of the fan assembly 3 directly transmitted to the inner pipe 103. When the residual energy generated by the vibration is transmitted to the inner pipe 103, the shock-absorbing layer 102 can effectively absorb it, so that the outer pipe 101 used for supporting the connection outside the fan assembly 3 can maintain stability during operation, further ensuring the overall noise reduction effect.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. The fan noise reduction structure is characterized by: include: A pipe assembly (1), wherein a support assembly (2) is arranged at a position near the rear side of the pipe assembly (1), a fan assembly (3) is arranged at the front side of the support assembly (2), and a plurality of shock absorbing assemblies (4) are arranged on the inner surface wall of the pipe assembly (1); The pipeline assembly (1) comprises an inner pipeline (103); The fan assembly (3) comprises a circular shell (301); The number of the shock absorbing components (4) is set to be multiple, and the multiple shock absorbing components (4) all include a first mounting block (401), the first mounting blocks (401) are fixedly connected to the inner surface wall of the inner pipe (103) at equal distances, the opposite side outer surfaces of the multiple first mounting blocks (401) are fixedly connected to dampers (402), the opposite side end surfaces of the multiple dampers (402) are fixedly connected to second mounting blocks (404), the opposite side outer surfaces of the multiple second mounting blocks (404) are rotatably connected to wheel frames (405), the inner surface walls of the wheel frames (405) are rotatably connected to movable wheels (406), and the outer sleeve of the damper (402) is provided with a spring (403).

2. The fan noise reduction structure according to claim 1, characterized in that: A second mounting frame (302) is fixedly connected between the inner surface walls of the circular shell (301), a motor (303) is mounted at the center of the rear surface of the second mounting frame (302), and an output end of the motor (303) slides through the rear surface of the second mounting frame (302) and extends to the front side.

3. The fan noise reduction structure according to claim 2, characterized in that: The output end of the motor (303) is fixedly connected to a fan blade (304), and the outer surfaces of the plurality of movable wheels (406) are all in contact with the outer surface of the circular shell (301).

4. The fan noise reduction structure according to claim 3, characterized in that: The support assembly (2) comprises a first connecting member (201), the first connecting member (201) being fixedly connected between the inner surface walls of the inner pipe (103) and arranged longitudinally, and a first sliding block (202) being longitudinally slidably connected to the front surface of the first connecting member (201).

5. The fan noise reduction structure according to claim 4, characterized in that: The front surface of the first sliding block (202) is fixedly connected to a second connecting member (203), and the front surface of the second connecting member (203) is laterally slidably connected to a second sliding block (204).

6. The fan noise reduction structure according to claim 5, characterized in that: The front surface of the second sliding block (204) is fixedly connected to a first mounting frame (205), and the outer surface of the first mounting frame (205) is connected to the inner surface wall of the circular shell (301).

7. The fan noise reduction structure according to claim 6, characterized in that: The outer surface of the inner pipe (103) is connected to a shock-absorbing layer (102), and the outer surface of the shock-absorbing layer (102) is connected to an outer pipe (101).

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