CN218913290U

CN218913290U - Noise reduction device of cooling fan

Info

Publication number: CN218913290U
Application number: CN202223327798.XU
Authority: CN
Inventors: 邝文俊
Original assignee: Blue Energy Guangzhou Co ltd
Current assignee: Blue Energy Guangzhou Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-04-25
Anticipated expiration: 2032-12-08

Abstract

The utility model belongs to the technical field of fans, in particular to a noise reduction device of a cooling fan, which comprises a fan; the fan is characterized in that vibration reduction mechanisms are arranged on the outer sides of the fans, fixing mechanisms are arranged on the two sides of the vibration reduction mechanisms, noise reduction mechanisms are arranged at one ends of the fixing mechanisms and comprise fans, rubber sleeves are sleeved on the circumferential surfaces of the fans, sponge pads are sleeved on the inner sides of the rubber sleeves, mounting frames are respectively arranged on the two sides of the circumferential surfaces of the rubber sleeves, the mounting frames are buckled on the rubber sleeves through clamping blocks and clamping seats in a matched mode, fixing frames are fixed on the side faces of the mounting frames, rubber pads are fixed on the two sides of the fixing frames, vibration generated by the fans is buffered by the sponge pads and the rubber sleeves during operation, the mounting frames are buckled on the rubber sleeves on the outer sides of the fans under the matching of the clamping blocks and the clamping seats, the fans are separated from the ventilation pipes through the rubber pads on the two sides of the fixing frames, and the fan shells are in direct contact with pipelines, and the problem that vibration noise is large is solved.

Description

Noise reduction device of cooling fan

Technical Field

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

Background

The cooling fan is a machine for conveying gas by improving the pressure of the gas on one side, is mainly used for cooling a power distribution cabinet, electronic equipment and a transformer, and is used for conveying cold air into equipment to be cooled by rotating fan blades on the inner side of the cooling fan so as to realize the cooling function.

When radiating electronic equipment, current cooling fan passes through the screw cooperation, and the direct fixed is in air pipe, and its casing is direct with pipeline contact, and air pipe output and the inside intercommunication of electronic equipment, the grid is installed to the input, and cooling fan is inhaled cold air by the pipeline input, blows cold air to electronic equipment inside through the output, realizes cooling's function.

However, when cooling fan at present, fan casing produces certain noise owing to the vibration, and fuselage casing and pipeline direct contact, and the noise is big when leading to cooling fan to move, causes great influence when personnel have a rest around, and then proposes a cooling fan's noise reduction device.

Disclosure of Invention

In order to make up the defects of the prior art, the cooling fan on the market is directly fixed on the inner wall of the ventilating duct by using bolts, and the noise is high during operation, so that the rest of surrounding people is influenced.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a noise reduction device of a cooling fan, which comprises a fan; the fan is characterized in that a vibration reduction mechanism is arranged on the outer side of the fan, fixing mechanisms are arranged on two sides of the vibration reduction mechanism, and a noise reduction mechanism is arranged at one end of each fixing mechanism.

Preferably, the vibration damping mechanism comprises a fan, the cover is equipped with the rubber sleeve on the fan periphery, be located the inboard cover of rubber sleeve and be equipped with the foam-rubber cushion on the fan periphery, both sides are provided with the mounting bracket respectively on the rubber sleeve periphery, the mounting bracket both ends are fixed with fixture block and cassette respectively, and fixture block and cassette are the polyethylene material, both sides the mounting bracket passes through fixture block and cassette cooperation lock joint rubber to be sheathe in, be fixed with the mount on the mounting bracket periphery, the mount both sides are fixed with the rubber pad, use rubber and sponge, have the effect that buffering was inhaled sound, and corrosion-resistant and not fragile.

Preferably, the fixing mechanism comprises a fixing frame, a plurality of fixing holes are formed in the fixing frame, ventilation pipes are arranged on two sides of the fixing frame, a connecting seat is fixed at one end of each ventilation pipe, the ventilation pipes are fixedly installed on two sides of the fixing frame through bolt matching, an air expansion pipe is arranged at the output end of each ventilation pipe, the fixing mechanism is fixed through bolt matching, the fixing mechanism is firm in fixing, and the installation and the disassembly processes are simple and convenient to operate.

Preferably, the noise reduction mechanism comprises an air expansion pipe, a plurality of N-shaped sound insulation plates are fixed on the inner wall of the air expansion pipe and are of loose porous structures, a plurality of saw-tooth fan blades are mounted on the inner side of the fan, one ends of the saw-tooth fan blades are arc-shaped, a sound insulation shell is sleeved on the peripheral surface of the outer side of the air pipe, the sound insulation shell is located at the joint of the air pipes on the two sides, the air pipe and the sound insulation shell are in a closed environment, a filter screen is fixed at the input end of the air pipe, the N-shaped sound insulation plates are used, and the noise generated during ventilation is absorbed through the loose porous structures, so that the noise is generated during heat dissipation of equipment and can be used in a quiet environment.

The utility model has the advantages that:

1. according to the structural design of the noise reduction device of the cooling fan, the vibration reduction mechanism is arranged, when the fan operates, the foam-rubber cushion and the rubber sleeve at the outer side of the fan buffer vibration generated by the fan, meanwhile, the mounting frame is fastened on the rubber sleeve at the outer side of the fan, the clamping block at the connecting end of the mounting frame is fastened in the clamping seat, the two sides of the fixing frame on the circumferential surface of the mounting frame separate the fan from the ventilation pipe through the rubber cushion, so that noise generated by vibration when the fan operates can be reduced, and the problems that a fan shell is in direct contact with a pipeline and vibration noise is large are solved.

2. According to the structural design of the noise reduction device of the cooling fan, the noise reduction mechanism is arranged, the serrated fan blades on the inner side of the fan can comb air in the rotating process, so that noise is reduced, the air expansion pipe with larger diameter is arranged at the outlet of the ventilation pipe, the cross section area of the outlet is increased, the flow speed of the air is reduced on the premise of not reducing the cooling effect, noise generated when the fan vibrates is absorbed by the N-shaped sound insulation plate, and the noise generated when the fan operates is reduced, so that the fan can be used in a quiet environment.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic perspective view of the whole front view of the first embodiment;

FIG. 2 is a schematic perspective view of the whole front view of the first embodiment;

FIG. 3 is a schematic diagram of the overall side view and perspective structure of the first embodiment;

FIG. 4 is a schematic top perspective view of the first embodiment;

FIG. 5 is a schematic top perspective view of the first embodiment;

FIG. 6 is a schematic top perspective view of the first embodiment;

fig. 7 is a schematic overall front perspective view of the second embodiment.

In the figure: 1. a fan; 2. saw-tooth fan blades; 3. a sponge cushion; 4. a rubber sleeve; 5. a mounting frame; 6. a fixing frame; 7. a rubber pad; 8. a fixing hole; 9. a clamping block; 10. a clamping seat; 11. a ventilation pipe; 12. a connecting seat; 13. a bolt; 14. a sound insulation housing; 15. a filter screen; 16. an air expansion pipe; 17. an N-shaped acoustic baffle; 18. a support frame; 19. a scraper; 20. a handle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-6, a noise reduction device of a cooling fan includes a fan 1; the utility model provides a fan, including fan 1, vibration damping mechanism is installed in the fan 1 outside, vibration damping mechanism both sides are provided with fixed establishment, fixed establishment one end is provided with noise reduction mechanism, vibration damping mechanism includes fan 1, the cover is equipped with rubber sleeve 4 on the fan 1 periphery, be located rubber sleeve 4 inboard cover and be equipped with foam-rubber cushion 3 on the fan 1 periphery, both sides are provided with mounting bracket 5 on the rubber sleeve 4 periphery respectively, mounting bracket 5 both ends are fixed with fixture block 9 and cassette 10 respectively, and fixture block 9 and cassette 10 are the polyethylene material, both sides mounting bracket 5 is through fixture block 9 and cassette 10 cooperation lock joint rubber sleeve 4 on, be fixed with mount 6 on the mounting bracket 5 periphery, mount 6 both sides are fixed with rubber pad 7, during operation, when meetting cooling fan operation, because fan casing vibration produces a large amount of noise, and fan casing and pipeline direct contact, lead to the noise increase, influence the problem of personnel rest around through vibration damping mechanism, the structure of fan 1 outside foam-rubber cushion 3 and rubber sleeve 4 cushion the vibration that fan 1 produced, still have certain sound absorption effect to detain simultaneously, with the fan 5 make the fan 1 outside and the vibration damping mount 6 when the fan 1 is connected with the mount 1 through the mount 5 and the vibration mount 6, can be separated on the mount 1 and the mount is connected with the mount and the mount 5 when the fan is connected with the mount and the fan is equipped with the mount and the mount is equipped with the mount and the vibration mount and the fan is 11.

The fixed establishment includes mount 6, a plurality of fixed orifices 8 have been seted up on the mount 6, mount 6 both sides are provided with ventilation pipe 11, ventilation pipe 11 one end is fixed with connecting seat 12, connecting seat 12 passes through bolt 13 cooperation with ventilation pipe 11 fixed mounting in mount 6 both sides, ventilation pipe 11 output is provided with expands tuber pipe 16, during operation, when meetting the fan operation, because direct and pipeline contact, when leading to noise to pass through the problem of pipeline transmission increase, through fixed establishment's structure, be fixed with rubber pad 7 between mount 6 and the both sides ventilation pipe 11, and mount 6 is fixed through bolt 13 cooperation with ventilation pipe 11, makes the fan not with pipeline direct contact, prevents that the noise transmission from expanding.

The noise reduction mechanism comprises an air expansion pipe 16, a plurality of N-shaped sound insulation plates 17 are fixed on the inner wall of the air expansion pipe 16, the N-shaped sound insulation plates 17 are of a loose porous structure, a plurality of saw-tooth fan blades 2 are arranged on the inner side of the fan 1, one end of each saw-tooth fan blade 2 is arc-shaped, a sound insulation shell 14 is sleeved on the outer circumferential surface of each air pipe 11, the sound insulation shells 14 are located at the connecting positions of the air pipes 11 on the two sides, the air pipes 11 and the sound insulation shells 14 are in a closed environment, a filter screen 15 is fixed at the input end of each air pipe 11, and in operation, when a cooling fan is running, due to the fact that air flows in a pipeline or at a high speed at an output port, when the electronic equipment is cooled, the saw-tooth fan blades 2 on the inner side of the fan 1 can comb the air in the rotating process, so that the noise is reduced, the cross section area of the air expansion pipe 16 with larger diameter is arranged at the output port of each air pipe 11, the cross section area of the output port is increased, the air flow speed is reduced on the premise that the cooling effect is not reduced, the noise generated when the N-shaped sound insulation plates 17 absorb the air is running, and the noise generated when the fan is running, and the fan can be used in the quiet environment.

Example two

Referring to fig. 7, in a first comparative example, as another embodiment of the present utility model, a supporting frame 18 is fixed at the input end of the ventilation pipe 11, a scraper 19 is slidably mounted on the inner side of the supporting frame 18 through a sliding slot, the scraper 19 is tightly attached to the surface of the filter screen 15, and a handle 20 is fixed at one end of the scraper 19 through the supporting frame 18; during operation, when encountering the problem that the filter screen 15 at the input end of the ventilation pipe 11 is covered with a large amount of dust and impurities, the air inlet quantity is reduced, and the cooling efficiency is reduced, the handle 20 is pulled to drive the scraper 19 to lift and move in the support frame 18 through the structure of the scraper 19, so that the scraper 19 scrapes the dust on the surface of the filter screen 15, the operation is simple, and the cooling efficiency can be ensured not to be reduced.

The working principle is that the cooling fan is a machine for conveying gas by improving the pressure of gas at one side, the cooling fan is mainly used for cooling a power distribution cabinet, electronic equipment and a transformer, the cooling fan is used for conveying cold air into the equipment to be cooled by rotating fan blades at the inner side of the cooling fan, so that the cooling function is realized, when the existing cooling fan is used for radiating heat, a fan shell generates certain noise due to vibration, the machine body shell is directly contacted with a pipeline, the noise is large when the cooling fan is caused to operate, the influence of the large noise is caused when surrounding personnel rest is caused, in order to solve the problem, by arranging a vibration reduction mechanism and a noise reduction mechanism, when the fan is operated, a sponge pad 3 at the outer side of the fan 1 and a rubber sleeve 4 buffer vibration generated by the fan 1, and also have a certain sound absorption effect, a mounting frame 5 is fastened on the rubber sleeve 4 at the outer side of the fan 1, a clamping block 9 at the connecting end of the mounting frame 5 is fastened in a clamping seat 10, a fixing frame 6 on the periphery of the mounting frame 5, the fan 1 and the ventilation pipe 11 are separated by rubber pads 7 at two sides, the noise generated due to vibration when the fan is operated can be reduced, the noise is fixed between the fixing frame 6 and the two sides 11, the noise generated when the fan is at the two sides 11, the large influence is caused by the vibration, the noise is not to be reduced, the noise is directly generated by the vibration of the fan through the fan and the ventilation pipe, the fan is not in the ventilation pipe, the air duct 1, the noise is directly has a large-shaped noise reduction effect, and the noise is reduced when the noise is directly has a noise-reducing the noise-reducing effect is reduced, and has a noise-reducing effect that the noise is in the noise-reducing the noise and has a noise-reducing effect through the noise-reducing effect. The fan can be used in a quiet environment, and the problem that when the fan operates, the shell is in direct contact with a pipeline, and rest of surrounding personnel is affected due to large vibration noise is solved.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The utility model provides a device of making an uproar falls in cooling fan which characterized in that: comprises a fan (1); the fan is characterized in that a vibration reduction mechanism is arranged on the outer side of the fan (1), fixing mechanisms are arranged on two sides of the vibration reduction mechanism, and a noise reduction mechanism is arranged at one end of each fixing mechanism;

the vibration reduction mechanism comprises a fan (1), a rubber sleeve (4) is sleeved on the circumferential surface of the fan (1), a sponge pad (3) is sleeved on the inner side of the rubber sleeve (4) on the circumferential surface of the fan (1), mounting frames (5) are respectively arranged on two sides of the circumferential surface of the rubber sleeve (4), clamping blocks (9) and clamping seats (10) are respectively fixed at two ends of the mounting frames (5), the clamping blocks (9) and the clamping seats (10) are made of polyethylene, the two sides of the clamping blocks are buckled on the rubber sleeve (4) through the matching of the clamping blocks (9) and the clamping seats (10), fixing frames (6) are fixed on the circumferential surface of the mounting frames (5), and rubber pads (7) are fixed on two sides of the fixing frames (6).

2. The noise reduction device of a cooling fan according to claim 1, wherein: the fixing mechanism comprises a fixing frame (6), a plurality of fixing holes (8) are formed in the fixing frame (6), ventilation pipes (11) are arranged on two sides of the fixing frame (6), a connecting seat (12) is fixed at one end of each ventilation pipe (11), the ventilation pipes (11) are fixedly installed on two sides of the fixing frame (6) through the cooperation of bolts (13) by the aid of the connecting seat (12), and air expansion pipes (16) are arranged at the output ends of the ventilation pipes (11).

3. The noise reduction device of a cooling fan according to claim 2, wherein: the noise reduction mechanism comprises an air expansion pipe (16), a plurality of N-shaped sound insulation plates (17) are fixed on the inner wall of the air expansion pipe (16), and the N-shaped sound insulation plates (17) are of loose porous structures.

4. A noise reduction device for a cooling fan according to claim 3, wherein: a plurality of sawtooth-shaped fan blades (2) are arranged on the inner side of the fan (1), and one end of each sawtooth-shaped fan blade (2) is arc-shaped.

5. The noise reduction device of a cooling fan according to claim 4, wherein: the periphery of the outer side of the ventilation pipe (11) is sleeved with a sound insulation shell (14), and the sound insulation shell (14) is positioned at the joint of the ventilation pipes (11) at the two sides.

6. The noise reduction device of a cooling fan according to claim 5, wherein: the air pipe (11) and the sound insulation shell (14) are in a closed environment, and a filter screen (15) is fixed at the input end of the air pipe (11).