CN221525209U - Noise reduction structure of fan - Google Patents
Noise reduction structure of fan Download PDFInfo
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- CN221525209U CN221525209U CN202323325979.3U CN202323325979U CN221525209U CN 221525209 U CN221525209 U CN 221525209U CN 202323325979 U CN202323325979 U CN 202323325979U CN 221525209 U CN221525209 U CN 221525209U
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- air inlet
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- 230000009467 reduction Effects 0.000 title claims abstract description 28
- 238000010521 absorption reaction Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 230000030279 gene silencing Effects 0.000 claims description 13
- 239000000428 dust Substances 0.000 claims description 10
- 230000003584 silencer Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 230000035939 shock Effects 0.000 description 30
- 238000013016 damping Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
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Abstract
The application relates to a fan noise reduction structure, relates to the technical field of fans, and aims to solve the problem of high noise in the running process of fans. The fan noise reduction structure comprises a machine body and an air inlet arranged on the machine body, wherein an air outlet pipe is communicated with the machine body; the engine body is provided with a sound insulation part for blocking noise, the engine body is provided with a sound absorption component for reducing noise at the air inlet, and the air outlet pipe is provided with a noise reduction component for reducing noise. The application has the effect of reducing the noise of the fan.
Description
Technical Field
The application relates to the technical field of fans, in particular to a noise reduction structure of a fan.
Background
The fan is a mechanical device commonly used in the modern industry, and can increase the gas pressure and discharge the gas by means of the input mechanical energy, and can be used for ventilation, dust discharge, cooling and the like, and is widely applied to various fields of metallurgy, petrifaction, electric power, ships and the like at present.
With respect to the related art among the above, the inventors found that there are the following problems in this technology: in the continuous working and running process of the fan, because of the disturbance of air flow, larger noise is usually generated, and noise pollution is easily caused to the environment, so the fan needs to be improved.
Disclosure of utility model
In order to solve the problem of large noise in the running process of a fan, the application provides a fan noise reduction structure.
The fan noise reduction structure provided by the application adopts the following technical scheme:
The fan noise reduction structure comprises a machine body and an air inlet arranged on the machine body, wherein an air outlet pipe is communicated with the machine body; the engine body is provided with a sound insulation part for blocking noise, the engine body is provided with a sound absorption component for reducing noise at the air inlet, and the air outlet pipe is provided with a noise reduction component for reducing noise.
By adopting the technical scheme, air flow enters the machine body from the air inlet and is discharged through the air outlet pipe; the noise that sound insulation piece produced inside the organism absorbs the separation, and the sound absorption subassembly has reduced the noise that the air current produced in air intake department, and the noise that the noise attenuation subassembly has reduced the air current and produced in air-out pipe department to the noise of outside diffusion has been reduced in the fan operation process, noise pollution has been reduced.
Preferably, the sound absorbing assembly comprises an air inlet pipe, a sound absorbing pipe and a sound absorbing piece; the air inlet pipe is communicated with the machine body and is located at the air inlet, the sound absorbing pipe is arranged inside the air inlet pipe, a plurality of sound absorbing holes are formed in the sound absorbing pipe in a penetrating mode, and the sound absorbing piece is arranged between the inner side wall of the air inlet pipe and the outer side wall of the sound absorbing pipe and used for absorbing noise.
By adopting the technical scheme, during the process that the air flow enters the machine body through the sound absorption pipe, noise is transmitted along the sound absorption pipe, and the air flow rubs with the sound absorption pipe to convert part of sound energy into heat energy; a part of the noise passes through the sound absorbing hole and propagates in the sound absorbing member; the sound absorbing member absorbs noise and converts part of sound energy into heat energy, thereby reducing the propagation of noise.
Preferably, the end of the sound absorbing pipe far away from the machine body is provided with a dust screen.
By adopting the technical scheme, the dust screen has a blocking effect on dust, so that the dust entering the machine body is reduced, and the influence of the dust on the operation of the machine body is reduced; thereby reducing the phenomenon of aggravating the vibration of the machine body due to dust accumulation and further reducing the generation of noise.
Preferably, the silencing assembly comprises a silencing pipe and a plurality of groups of silencing plates; the muffler pipe intercommunication sets up in the tip that the organism was kept away from to the tuber pipe, all the muffler board all inclines to set up in the muffler pipe is inside, all the muffler board all along the length direction interval distribution of muffler pipe, adjacent the incline direction of muffler board is opposite, and all the vent has all been run through on the muffler board.
By adopting the technical scheme, when noise propagates in the silencing pipe, due to the fact that the inclination directions of the adjacent silencing plates are opposite, sound waves are continuously reflected among the silencing plates in a plurality of groups and interfere with each other, so that the energy of the sound waves is dispersed, noise aggregation is reduced, and noise propagation is reduced; meanwhile, the air flow is discharged from the silencing pipe through the ventilation opening on the silencing plate, so that the normal air outlet of the machine body is ensured.
Preferably, the noise reduction assembly further comprises a plurality of groups of noise reduction plates, all the noise reduction plates are arranged inside the air outlet pipe, and all the noise reduction plates are distributed at intervals along the radial direction of the air outlet pipe.
Through adopting above-mentioned technical scheme, when noise is propagated in the tuber pipe inside, under the effect of a plurality of groups of boards of making an uproar of falling, the sound wave of following the tuber pipe propagation of making an uproar is constantly reflected between the board of making an uproar of falling to the mutual interference, thereby changed the propagation path of sound wave, reduced the gathering of noise, and then reduced the phenomenon that the interior noise of tuber pipe of going out propagates to the muffler.
Preferably, a flexible pipe is arranged between the air outlet pipe and the silencing pipe in a communicating way.
Through adopting above-mentioned technical scheme, flexible pipe has realized out tuber pipe and muffler and has carried out the flexible coupling, has played the cushioning effect in the junction of play tuber pipe and muffler, has reduced the transmission of going out the vibration between tuber pipe and the muffler to reduce the organism vibration and lead to out tuber pipe and muffler and produce the phenomenon of resonance, and then reduced the production of noise.
Preferably, the bottom of organism is provided with the shock attenuation board, one side that the organism was kept away from to the shock attenuation board is provided with the shock mount, be provided with the shock attenuation piece that is used for reducing organism vibrations between shock attenuation board and the shock mount.
By adopting the technical scheme, the damping piece is elastically deformed under the action of external force of the vibration of the machine body, and part of kinetic energy is converted into elastic potential energy; the damping part is used for playing a role in buffering in a telescopic manner, so that vibration of the machine body is reduced, and noise is further reduced.
Preferably, the shock-absorbing seat is provided with the support column near one side of shock-absorbing plate, run through on the shock-absorbing plate and set up the spacing hole that can supply the support column to pass, the support column runs through the bolster.
Through adopting above-mentioned technical scheme, when the shock attenuation piece flexible warp, the support column has restricted the flexible direction of shock attenuation piece for the shock attenuation piece stretches out and draws back along the length direction of support column, has reduced the shock attenuation piece and has produced buckling because of flexible deformation, thereby has reduced the phenomenon emergence that the organism rocked.
In summary, the present application includes at least one of the following beneficial technical effects:
1. Through setting up the sound subassembly for noise passes through the sound hole of inhaling on the sound pipe, pierces through to inhale the sound piece and propagates, inhale the sound piece and absorb the noise, turn into heat energy with some sound energy, thus reduced the propagation of noise; through setting up the amortization subassembly for the noise constantly reflects between a plurality of groups of acoustical panel, and the mutual interference, thereby reduced the propagation of noise, and then reduced the noise of outside diffusion in the fan operation process, reduced noise pollution.
2. Through setting up the shock attenuation piece, the shock attenuation piece produces elastic deformation under the effort of organism vibration, converts partial kinetic energy into elastic potential energy, has played the cushioning effect to the organism vibration to the noise that the organism vibration produced has been reduced.
Drawings
FIG. 1 is a schematic view of a fan noise reduction structure according to an embodiment of the present application;
Fig. 2 is a schematic cross-sectional view for embodying a sound absorbing assembly;
FIG. 3 is a schematic cross-sectional view of a muffler assembly;
Fig. 4 is a schematic view of a structure for embodying a shock absorbing plate and a shock absorbing member.
Reference numerals illustrate:
1. A body; 11. an air inlet; 12. an air outlet pipe; 13. a sound insulating member; 14. a shock absorbing plate; 141. a shock absorbing member; 1411. a support column; 142. a shock absorption seat; 143. a limiting hole; 2. a sound absorbing assembly; 21. an air inlet pipe; 22. a sound absorbing tube; 221. a sound absorbing hole; 222. a dust screen; 23. a sound absorbing member; 3. a sound attenuation assembly; 31. a muffler pipe; 32. a muffler plate; 321. a vent; 33. a noise reduction plate; 4. a flexible tube.
Detailed Description
The application is described in further detail below with reference to fig. 1-4.
The embodiment of the application discloses a fan noise reduction structure.
Referring to fig. 1, a fan noise reduction structure comprises a machine body 1 and an air inlet 11 formed in the side wall of the machine body 1, wherein an air outlet pipe 12 is fixedly welded on the outer side wall of the machine body 1, and the air outlet pipe 12 is communicated with the interior of the machine body 1. The outer side wall of the body 1 is adhesively fixed with a sound insulating member 13, and in this embodiment, the sound insulating member 13 may be a sponge for absorbing noise generated inside the body 1.
Referring to fig. 1 and 2, a sound absorbing assembly 2 is fixedly installed at an air inlet 11 of a machine body 1, and the sound absorbing assembly 2 includes an air inlet duct 21, a sound absorbing duct 22 and a sound absorbing member 23. The air inlet pipe 21 is welded and fixed on the outer side wall of the machine body 1, and the air inlet pipe 21 is positioned at the air inlet 11 and communicated with the interior of the machine body 1. In this embodiment, the sound absorbing member 23 may be a sponge, the sound absorbing member 23 is adhesively fixed to the inner side wall of the air inlet duct 21, and the sound absorbing member 23 has a hollow cylindrical shape. The sound-absorbing pipe 22 is fixed on the inner side wall of the sound-absorbing piece 23 by gluing, a plurality of groups of sound-absorbing holes 221 are formed in the sound-absorbing pipe 22 in a penetrating way, and a dust screen 222 is welded and fixed at the end part of the sound-absorbing pipe 22 far away from the machine body 1.
Referring to fig. 1 and 3, a muffler assembly 3 is installed on the air outlet pipe 12, and the muffler assembly 3 includes a muffler pipe 31, a plurality of groups of muffler plates 32, and a plurality of groups of noise reduction plates 33. All the noise reduction plates 33 are welded and fixed on the inner side wall of the air outlet pipe 12, and all the noise reduction plates 33 are distributed at intervals along the radial direction of the air outlet pipe 12. The end of the air outlet pipe 12 far from the machine body 1 is fixedly communicated with a flexible pipe 4, and in the embodiment, the flexible pipe 4 can be a rubber hose. The muffler pipe 31 is fixedly communicated with the end part of the flexible pipe 4 far away from the air outlet pipe 12, all the muffler plates 32 are welded and fixed on the inner side wall of the muffler pipe 31, and all the muffler plates 32 are provided with ventilation openings 321 in a penetrating way. All the muffler plates 32 are spaced apart along the length direction of the muffler pipe 31, and the inclination directions of the adjacent muffler plates 32 are opposite.
Referring to fig. 1 and 4, a shock absorbing plate 14 is welded and fixed at the bottom of a machine body 1, a shock absorbing seat 142 connected with the ground is fixed at one side of the shock absorbing plate 14 far away from the machine body 1, a plurality of groups of supporting columns 1411 are installed at one side of the shock absorbing seat 142 near the shock absorbing plate 14, and the end parts of all the supporting columns 1411 near the shock absorbing seat 142 are welded and fixed with the shock absorbing seat 142; a plurality of groups of limiting holes 143 are formed in the damping plate 14 in a penetrating manner, all supporting columns 1411 and the limiting holes 143 are arranged in a one-to-one correspondence manner, and the end portions, away from the damping seat 142, of each group of supporting columns 1411 penetrate through the corresponding limiting holes 143.
Referring to fig. 1 and 4, the shock absorbing members 141 are sleeved outside each set of support columns 1411, and in this embodiment, the shock absorbing members 141 may be springs. One end of the shock absorbing member 141 is welded and fixed with the side wall of the shock absorbing seat 142, which is close to the machine body 1, and the other end of the shock absorbing member 141 is welded and fixed with the side wall of the shock absorbing plate 14, which is far away from the machine body 1.
The implementation principle of the fan noise reduction structure provided by the embodiment of the application is as follows:
During the process that the air flow enters the machine body 1 through the air inlet pipe 21, noise diffuses to the outside of the sound absorption pipe 22, and friction is generated between the air flow and the sound absorption pipe 22, so that part of sound energy is converted into heat energy; meanwhile, part of the noise passes through the sound absorbing holes 221 and propagates inside the sound absorbing member 23, and the sound absorbing member 23 absorbs the noise to convert part of the sound energy into heat energy. The air flow flows inside the body 1, and the generated noise is absorbed and blocked by the soundproof member 13.
During the process that the air flow is discharged out of the machine body 1 through the air outlet pipe 12, noise is continuously reflected among the plurality of groups of noise reduction plates 33 and interferes with each other, so that the energy of sound waves is dispersed; then, the air flow enters the interior of the silencer duct 31 along the air outlet duct 12, and the noise is continuously reflected among the plurality of groups of silencer panels 32 and interferes with each other, so that the collection and propagation of the noise are reduced, the outward diffusion of the noise in the running process of the fan is reduced, and the noise pollution is reduced.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in order, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (5)
1. The fan noise reduction structure comprises a machine body (1) and an air inlet (11) formed in the machine body (1), wherein an air outlet pipe (12) is communicated with the machine body (1); the method is characterized in that: be provided with on organism (1) and be used for the sound insulation piece (13) of separation noise, organism (1) are provided with in air intake (11) department and are used for reducing noise inhale sound subassembly (2), be provided with on air-out pipe (12) and be used for reducing noise's amortization subassembly (3).
2. The fan noise reduction structure according to claim 1, wherein: the sound absorption assembly (2) comprises an air inlet pipe (21), a sound absorption pipe (22) and a sound absorption piece (23); the air inlet pipe (21) is communicated with the machine body (1) and is located at the air inlet (11), the sound absorbing pipe (22) is arranged inside the air inlet pipe (21), a plurality of sound absorbing holes (221) are formed in the sound absorbing pipe (22) in a penetrating mode, and the sound absorbing piece (23) is arranged between the inner side wall of the air inlet pipe (21) and the outer side wall of the sound absorbing pipe (22) so as to be used for absorbing noise.
3. The fan noise reduction structure according to claim 2, wherein: the end part of the sound absorption pipe (22) far away from the machine body (1) is provided with a dust screen (222).
4. The fan noise reduction structure according to claim 1, wherein: the silencing assembly (3) comprises a silencing pipe (31) and a plurality of groups of silencing plates (32); the silencer is characterized in that the silencer tube (31) is communicated with the end part of the air outlet tube (12) far away from the machine body (1), all silencer plates (32) are obliquely arranged inside the silencer tube (31), all silencer plates (32) are distributed at intervals along the length direction of the silencer tube (31), the inclination directions of adjacent silencer plates (32) are opposite, and all silencer plates (32) are provided with ventilation openings (321) in a penetrating mode.
5. The fan noise reduction structure according to claim 4, wherein: a flexible pipe (4) is communicated between the air outlet pipe (12) and the silencing pipe (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323325979.3U CN221525209U (en) | 2023-12-06 | 2023-12-06 | Noise reduction structure of fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323325979.3U CN221525209U (en) | 2023-12-06 | 2023-12-06 | Noise reduction structure of fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221525209U true CN221525209U (en) | 2024-08-13 |
Family
ID=92181454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323325979.3U Active CN221525209U (en) | 2023-12-06 | 2023-12-06 | Noise reduction structure of fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221525209U (en) |
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2023
- 2023-12-06 CN CN202323325979.3U patent/CN221525209U/en active Active
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