CN222702249U

CN222702249U - Noise reduction structure of fan

Info

Publication number: CN222702249U
Application number: CN202421009453.6U
Authority: CN
Inventors: 赵炳豪; 杨智威
Original assignee: Zhuhai Jiantai Environmental Protection Industrial Park Co ltd
Current assignee: Zhuhai Jiantai Environmental Protection Industrial Park Co ltd
Priority date: 2024-05-11
Filing date: 2024-05-11
Publication date: 2025-04-01
Anticipated expiration: 2034-05-11

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 assembly 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.

Description

Noise reduction structure of fan

Technical Field

The utility model relates to the technical field of fans, in particular to a noise reduction structure of a fan.

Background

The fan is a machine for increasing the pressure of gas and discharging the gas by means of input mechanical energy, is a driven fluid machine, is a habit of gas compression and gas conveying machine, and is commonly referred to as a fan, a blower and a wind driven generator.

But the fan needs the motor to provide mechanical energy at the operation in-process, and the in-process can produce the vibration to noise appears, and the noise that the fan that the power is bigger produced also can be bigger, and then influences people's life, consequently, we propose novel fan and fall the structure of making an uproar.

Disclosure of utility model

The utility model aims to solve the problems that in the prior art, a fan needs to provide mechanical energy in the operation process, vibration is generated in the process, so that noise is generated, and the noise generated by the fan with higher power is larger, so that the life of people is influenced.

The fan noise reduction structure comprises a pipeline component, wherein a supporting component is arranged in the pipeline component and close to the rear side, a fan component is arranged on the front side of the supporting component, a plurality of damping components are arranged on the inner surface wall of the pipeline component in an arrayed mode, the pipeline component comprises an inner pipeline, the fan component comprises a circular shell, the damping components are multiple in number, each damping component comprises a first mounting block, the first mounting blocks are fixedly connected to the inner surface wall of the inner pipeline at equal intervals, dampers are fixedly connected to the outer surfaces of the opposite sides of the first mounting blocks, second mounting blocks are fixedly connected to the end surfaces of the opposite sides of the dampers, wheel frames are rotatably connected to the outer surfaces of the opposite sides of the second mounting blocks, movable wheels are rotatably connected between the inner surface walls of the wheel frames, and springs are sleeved outside the dampers.

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 penetrates through the rear surface of the second mounting frame in a sliding mode and extends to the front side.

Preferably, the motor output end is fixedly connected with a fan blade, and the outer surfaces of the movable wheels are all attached to the outer surface of the circular shell.

Preferably, the support assembly comprises a first connecting piece, the first connecting piece is fixedly connected between the inner surface walls of the inner pipeline and is longitudinally arranged, and the front surface of the first connecting piece is longitudinally and slidably connected with a first sliding block.

Preferably, the front surface of the first slider is fixedly connected with a second connecting piece, and the front surface of the second connecting piece is transversely connected with a second slider in a sliding manner.

Preferably, the front surface of the second sliding block is fixedly connected with a first mounting frame, and the outer surface of the first mounting frame is connected with the inner surface wall of the circular shell.

Preferably, the outer surface of the inner pipeline is connected with a shock absorption layer, and the outer surface of the shock absorption layer is connected with an outer pipeline.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. According to the utility model, the fan assembly is movably arranged in the inner pipeline through the supporting assembly, the supporting force is provided by the surrounding damping assemblies, when the fan assembly works to generate vibration, the damper and the spring in the damping assemblies are matched to play a role in buffering and absorbing energy, and the free-rotating wheel frame is matched with the movable wheel to convert sliding friction between the damper and the spring and the circular shell into rolling friction, so that noise generated by friction is reduced while noise reduction is ensured, friction damage is effectively reduced, the whole structure is reasonable, vibration generated in the working process of the motor can be effectively restrained, further the effect of reducing the fan noise is achieved, and the problem of influencing the life quality of people is avoided.

2. According to the utility model, when the motor drives the fan blade to vibrate in the working process, the first mounting frame for supporting and connecting the circular shell can move left and right along with the vibration under the cooperation of the second sliding block and the second connecting piece, and move up and down along with the vibration under the cooperation of the second connecting piece and the first sliding block, so that the effect of supporting the fan assembly is further achieved, meanwhile, the effect that the vibration of the fan assembly is directly transmitted to the inner pipeline is avoided, and when the residual energy generated by the vibration is transmitted to the inner pipeline, the vibration absorbing layer can effectively absorb the residual energy, so that the outer pipeline for supporting and connecting the outside in the working process of the fan assembly can keep stability, and the noise reduction effect is ensured.

Drawings

FIG. 1 is a perspective view of a fan noise reduction structure according to the present utility model;

FIG. 2 is a schematic view of a duct assembly with a fan noise reduction structure according to the present utility model;

FIG. 3 is a schematic view of a support assembly of a fan noise reduction structure according to the present utility model;

FIG. 4 is a schematic diagram of a fan assembly with a fan noise reduction structure according to the present utility model;

fig. 5 is a schematic structural diagram of a damper assembly with a fan noise reduction structure according to the present utility model.

The illustration comprises 1, a pipeline assembly, 101, an outer pipeline, 102, a shock absorption layer, 103, an inner pipeline, 2, a supporting assembly, 201, a first connecting piece, 202, a first sliding block, 203, a second connecting piece, 204, a second sliding block, 205, a first mounting frame, 3, a fan assembly, 301, a circular shell, 302, a second mounting frame, 303, a motor, 304, fan blades, 4, a shock absorption assembly, 401, a first mounting block, 402, a damper, 403, a spring, 404, a second mounting block, 405, a wheel frame, 406 and a movable wheel.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

In the embodiment 1, as shown in fig. 1-5, the utility model provides a fan noise reduction structure, which comprises a pipeline component 1, wherein a supporting component 2 is arranged in the pipeline component 1 near the rear side, a fan component 3 is arranged on the front side of the supporting 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 comprises an inner pipeline 103, the fan component 3 comprises a circular shell 301, the plurality of shock absorbing components 4 are arranged in a plurality, each shock absorbing component 4 comprises a first mounting block 401, the first mounting blocks 401 are fixedly connected to the inner surface wall of the inner pipeline 103 at equal intervals, dampers 402 are fixedly connected to the outer surfaces of the opposite sides of the first mounting blocks 401, a second mounting block 404 is fixedly connected to the outer surfaces of the opposite sides of the dampers 402, a wheel frame 405 is rotatably connected to the outer surfaces of the opposite sides of the second mounting blocks 404, a wheel frame 406 is rotatably connected between the inner surface walls of the wheel frame 405, a spring 403 is sleeved outside the dampers 402, a second 302 is fixedly connected between the inner surface walls of the circular shell 301, a motor 302 is fixedly connected to the rear surface of the motor 302, and the motor 302 is fixedly connected to the outer surface of the circular shell 303, and the motor 302 extends to the outer surface of the motor 303 and penetrates through the outer surface of the motor housing 303.

The effect that its whole embodiment 1 reaches is, when the motor 303 of the inside second mounting bracket 302 surface of circular shell 301 drives flabellum 304 and produces the noise because of vibration in-process that produces wind-force, outside movable circular shell 301 receives the extrusion back by shock-absorbing assembly 4 all around and is supported in the position that pipeline 103 is close to the center, and circular shell 301 can follow vibration and take place the position movement when motor 303 vibrates, the energy that shock-absorbing assembly 4 in this moment damper 402 and spring 403 play through the flexible energy that plays the vibration produced absorbs, the effect of making an uproar falls, and the wheel carrier 405 that connects through second installation piece 404 and damper 402 and spring 403 can drive loose pulley 406 tightly to support circular shell 301, simultaneously the wheel carrier 405 can take place to rotate along the vibration direction at the vibration in-process, thereby the sliding friction between damper 402 and spring 403 and the circular shell 301 changes into rolling friction, thereby the noise that the friction produced has been reduced when having ensured to make an uproar, and the effectual friction damage that has reduced, the overall structure is reasonable, vibration that can effectively restrain the vibration that the motor 303 produced in the course of working, and then play the effect of reducing the noise of fan life.

In embodiment 2, as shown in fig. 1-4, the support assembly 2 includes a first connecting member 201, where the first connecting member 201 is fixedly connected between inner surface walls of the inner pipe 103 and is longitudinally disposed, a first slider 202 is longitudinally slidably connected to a front surface of the first connecting member 201, a second connecting member 203 is fixedly connected to a front surface of the first slider 202, a second slider 204 is transversely slidably connected to a front surface of the second connecting member 203, a first mounting frame 205 is fixedly connected to a front surface of the second slider 204, an outer surface of the first mounting frame 205 is connected to an inner surface wall of the circular shell 301, a shock absorbing layer 102 is connected to an outer surface of the inner pipe 103, and an outer pipe 101 is connected to an outer surface of the shock absorbing layer 102.

The effect that its whole embodiment 2 reaches is, when motor 303 drives flabellum 304 during operation and produces vibration, be used for supporting the first mounting bracket 205 of connecting circular shell 301 and can carry out the horizontal movement along with the vibration under the cooperation of second slider 204 and second connecting piece 203, move about along with the vibration under the cooperation of second connecting piece 203 and first slider 202, and then it directly transmits the effect on the inner tube 103 to have avoided the vibration of fan assembly 3 to provide the supporting role to fan assembly 3, and when the residual energy that the vibration produced transmitted inner tube 103, the buffer layer 102 can effectually absorb it, and then the outside outer tube 101 that is used for supporting the connection in the fan assembly 3 operation can keep stability, the effect of making an uproar falls has been ensured.

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 noise due to vibration in the process of generating wind force, the circular shell 301 which moves outside is supported at a position close to the center of the inner pipeline 103 after being extruded by the peripheral shock absorbing components 4, the circular shell 301 moves along with the vibration when the motor 303 vibrates, at the moment, the damper 402 and the spring 403 in the shock absorbing components 4 absorb the energy generated by the vibration through expansion and contraction, the noise reduction effect is achieved, the wheel frame 405 connected with the damper 402 and the spring 403 through the second mounting block 404 can drive the movable wheel 406 to tightly prop against the circular shell 301, meanwhile, the wheel frame 405 rotates along with the vibration direction in the vibration process, the movable wheel 406 rotates, so that the sliding friction between the damper 402 and the spring 403 and the circular shell 301 is converted into rolling friction, therefore, the noise generated by friction is reduced while the noise is reduced, the friction damage is effectively reduced, the whole structure is reasonable, the vibration generated in the working process of the motor 303 can be effectively restrained, the effect of reducing the noise of the fan is further achieved, the problem of influencing the life quality of people is avoided, when the motor 303 drives the fan blades 304 to vibrate in the working process, the first mounting frame 205 for supporting and connecting the circular shell 301 can move left and right along with the vibration under the cooperation of the second sliding block 204 and the second connecting piece 203, the second connecting piece 203 and the first sliding block 202 move up and down along with the vibration, the supporting effect of the fan assembly 3 is further achieved, the effect that the vibration of the fan assembly 3 is directly transmitted to the inner pipeline 103 is avoided, and the residual energy generated by the vibration is effectively absorbed by the shock absorber layer 102 when the residual energy generated by the vibration is transmitted to the inner pipeline 103, and then the outer pipeline 101 that outside is used for supporting the connection in the fan assembly 3 working process can keep stability, has further ensured holistic noise reduction effect.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims

1. The fan noise reduction structure is characterized by comprising a pipeline assembly (1), wherein a supporting assembly (2) is arranged in the pipeline assembly (1) and close to the rear side, a fan assembly (3) is arranged on the front side of the supporting assembly (2), and a plurality of damping assemblies (4) are arranged on the inner surface wall of the pipeline assembly (1);

The pipe assembly (1) comprises an inner pipe (103);

the fan assembly (3) comprises a circular housing (301);

The utility model discloses a damping device, including damping module (4), damping module (4) are installed to a plurality ofly, a plurality of damping module (4) all include first installation piece (401), on interior table wall of interior pipeline (103) of first installation piece (401) equidistance fixed connection, a plurality of equal fixedly connected with attenuator (402) of opposite side surface of first installation piece (401), a plurality of equal fixedly connected with second installation piece (404) of opposite side terminal surface of attenuator (402), a plurality of equal rotation of opposite side surface of second installation piece (404) is connected with wheel carrier (405), rotate between the interior table wall of wheel carrier (405) and be connected with tight pulley (406), the outside cover of attenuator (402) is equipped with spring (403).

2. The fan noise reduction structure according to claim 1, wherein a second mounting frame (302) is fixedly connected between 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 the output end of the motor (303) penetrates through the rear surface of the second mounting frame (302) in a sliding mode and extends to the front side.

3. The fan noise reduction structure according to claim 2, wherein the output end of the motor (303) is fixedly connected with fan blades (304), and the outer surfaces of the movable wheels (406) are respectively attached to the outer surface of the circular shell (301).

4. A fan noise reduction structure according to claim 3, wherein the support assembly (2) comprises a first connecting piece (201), the first connecting piece (201) is fixedly connected between inner surface walls of the inner pipeline (103) and is longitudinally arranged, and a first sliding block (202) is longitudinally and slidably connected to the front surface of the first connecting piece (201).

5. The fan noise reduction structure according to claim 4, wherein the front surface of the first slider (202) is fixedly connected with a second connecting piece (203), and the front surface of the second connecting piece (203) is transversely and slidably connected with a second slider (204).

6. The fan noise reduction structure according to claim 5, wherein the front surface of the second slider (204) is fixedly connected with a first mounting frame (205), and the outer surface of the first mounting frame (205) is connected with the inner surface wall of the circular shell (301).

7. The fan noise reduction structure according to claim 6, wherein the outer surface of the inner pipe (103) is connected with a shock absorption layer (102), and the outer surface of the shock absorption layer (102) is connected with an outer pipe (101).