CN220268029U - Low-noise centrifugal heat dissipation fan - Google Patents
Low-noise centrifugal heat dissipation fan Download PDFInfo
- Publication number
- CN220268029U CN220268029U CN202321569120.4U CN202321569120U CN220268029U CN 220268029 U CN220268029 U CN 220268029U CN 202321569120 U CN202321569120 U CN 202321569120U CN 220268029 U CN220268029 U CN 220268029U
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- barrel
- fan
- slow flow
- centrifugal
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- 230000017525 heat dissipation Effects 0.000 title claims description 9
- 230000005855 radiation Effects 0.000 claims abstract description 6
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 241000883990 Flabellum Species 0.000 claims description 5
- 239000012774 insulation material Substances 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims 1
- 230000001603 reducing effect Effects 0.000 abstract description 2
- 238000005381 potential energy Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a low-noise centrifugal heat radiation fan, which comprises a centrifugal fan and a noise reduction assembly, wherein the centrifugal fan comprises a barrel body at the outer end of the centrifugal fan and fan blades in the barrel body, and the noise reduction assembly comprises a plurality of groups of transverse slow flow plates which are transversely arranged and fixedly arranged at the rear end of the fan blades in the barrel body and a plurality of groups of vertical slow flow plates which are vertically arranged and fixedly arranged in the barrel body at the rear end of the transverse slow flow plates. According to the low-noise centrifugal heat radiation fan, the rear ends of the fan blades in the barrel are transversely and vertically arranged and provided with the plurality of groups of wave-shaped transverse slow flow plates, the vertical slow flow plates and the sound absorbing cover at the rear ends, the sound absorbing barrel and the outer barrel are sleeved at the outer ends of the barrel in sequence, the sucked air flow can be slowed down to reduce the noise of the air flow, and the rear ends and the outer sound absorbing barrel and the vacuum cavity can be utilized to absorb and isolate the noise in the operation of the air flow and the motor, so that the noise in the use of the centrifugal fan is reduced, the noise reducing effect of the centrifugal fan is improved, and the use experience of the centrifugal fan is optimized.
Description
Technical Field
The utility model relates to the technical field of centrifugal fans, in particular to a low-noise centrifugal heat dissipation fan.
Background
The centrifugal fan is based on the principle that kinetic energy is converted into potential energy, and the gas is accelerated by utilizing an impeller rotating at a high speed, and then the flow direction is decelerated and changed, so that the kinetic energy is converted into potential energy; centrifugal fans are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induced draft of boilers and industrial kilns; cooling and ventilation in air conditioning equipment and household appliances, etc.
The existing centrifugal fan usually generates larger noise in use due to the operation of the machine and overlarge airflow, noise reduction of the centrifugal fan is generally carried out by adopting sound-absorbing cotton, the effect caused by unilateral noise reduction of the sound-absorbing cotton is often poor, and therefore, the low-noise centrifugal heat dissipation fan is provided.
Disclosure of Invention
The utility model mainly aims to provide a low-noise centrifugal heat radiation fan which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a low noise centrifugal heat dissipation fan, includes centrifugal fan and the subassembly of making an uproar falls, centrifugal fan includes the barrel of its outer end to and the flabellum in the barrel, the subassembly of making an uproar falls includes the horizontal slow flow board of multiunit of the horizontal range fixed mounting of flabellum rear end in the barrel, and the vertical range fixed mounting's multiunit vertical slow flow board in the horizontal slow flow board rear end barrel, and the horizontal slow flow board is the same with the structure of vertical slow flow board, the rear end of barrel still fixed mounting has the sound absorbing cover.
Preferably, the sound absorbing cover is in a conical structure, and the sound absorbing cover is made of a sound insulation material.
Preferably, the noise reduction assembly further comprises a sound absorption cylinder fixedly sleeved at the outer end of the cylinder body, and the sound absorption cylinder is made of sound insulation materials.
Preferably, the noise reduction assembly further comprises an outer cylinder fixedly sleeved at the outer end of the sound absorption cylinder and a vacuum cavity arranged in the outer cylinder.
Preferably, the centrifugal fan further comprises a motor fixedly arranged at the rear end of the fan blade in the cylinder body and supporting feet fixedly arranged at the outer end of the outer cylinder.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model provides a low noise centrifugal heat dissipation fan, the multiunit that the flabellum rear end transversely is the wave shape with the vertical slow flow board of arranging the installation in the barrel and the sound absorbing cover of vertical slow flow board and rear end, sound absorbing cylinder and urceolus that the cooperation barrel outer end overlaps in proper order establish, can also utilize rear end and outside sound absorbing cylinder and vacuum chamber when slowing down its noise to the inspiratory air current, carry out the absorption and the isolation of air current and motor during operation noise to noise in order to reduce centrifugal fan during use improves its noise reduction effect, optimizes its use experience.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is another view of the present utility model;
fig. 3 is a side cross-sectional view of the present utility model.
Reference numerals:
100. a centrifugal fan; 101. a cylinder; 102. a fan blade; 103. a motor; 104. supporting feet;
200. a noise reduction assembly; 201. a transverse slow flow plate; 202. vertical slow flow plate; 203. a sound absorbing cover; 204. a sound absorbing cylinder; 205. an outer cylinder; 206. a vacuum chamber.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
Embodiment one:
as shown in fig. 1-3, this embodiment provides a low noise centrifugal heat dissipation fan, including a centrifugal fan 100 and a noise reduction assembly 200, the centrifugal fan 100 includes a barrel 101 at the outer end thereof, and fan blades 102 in the barrel 101, the centrifugal fan 100 further includes a motor 103 fixedly mounted at the rear end of the fan blades 102 in the barrel 101, and a supporting leg 104 fixedly mounted at the outer end of an outer barrel 205, the noise reduction assembly 200 includes a plurality of groups of transverse slow flow plates 201 fixedly mounted at the rear end of the fan blades 102 in the barrel 101 in a transverse arrangement, and a plurality of groups of vertical slow flow plates 202 fixedly mounted at the rear end of the transverse slow flow plates 201 in the barrel 101 in a vertical arrangement, and the transverse slow flow plates 201 have the same structure as the vertical slow flow plates 202, the rear end of the barrel 101 is fixedly mounted with a sound absorbing cover 203, the sound absorbing cover 203 has a conical structure, the sound absorbing cover 203 is made of a sound insulation material, the noise reduction assembly 200 further includes a sound absorbing barrel 204 fixedly sleeved at the outer end of the barrel 101, the sound absorbing barrel 204 is made of a sound insulation material, the noise reduction assembly 200 further includes an outer barrel 205 fixedly sleeved at the outer end of the sound absorbing barrel 204, and a vacuum cavity 206 provided in the outer barrel 205.
Specifically, the centrifugal fan 100 is based on the principle that kinetic energy is converted into potential energy, the high-speed rotating fan blades 102 are utilized to accelerate gas, so that kinetic energy is converted into potential energy, multiple groups of wave-shaped transverse slow flow plates 201 and vertical slow flow plates 202 which are transversely and vertically arranged and installed at the rear ends of the fan blades 102 in the cylinder 101 in the centrifugal fan 100 are matched with the sound absorbing covers 203 at the rear ends, the sound absorbing cylinders 204 and the outer cylinders 205 are sleeved in sequence at the outer ends of the cylinder 101, and the noise of the sucked air flow can be reduced, and simultaneously, the rear ends and the external sound absorbing cylinders 204 and the vacuum cavities 206 in the outer cylinders 205 can be utilized to absorb and isolate the noise in the operation of the air flow and the motor 103, so that the noise in the use of the centrifugal fan 100 is reduced, the noise reducing effect is improved, and the use experience is optimized.
The working principle and the using flow of the utility model are as follows:
after the fan blades 102 are driven by the motor 103 in the centrifugal fan 100 to rotate, the fan blades 102 absorb external air flow and lead to the rear end of the cylinder 101, after the air flow with higher flow speed flows to the rear end of the motor 103, the air flow flows to the upper ends of a plurality of groups of transverse slow flow plates 201 which are transversely arranged in the cylinder 101, so that the transverse wind speed and generated sound of the air flow are slowed down through a plurality of groups of wave-shaped transverse slow flow plates 201, and then the air flow flows to the upper ends of a plurality of groups of vertical slow flow plates 202 which are vertically arranged at the rear end of the transverse slow flow plates 201, so that the vertical wind speed and generated sound of the air flow are slowed down, the air flow flows out of the sound absorbing cover 203 at the rear end after being decelerated through the transverse slow flow plates 201 and the vertical slow flow plates 202, meanwhile, the sound absorbing cover 203 made of sound absorbing materials can absorb the noise caused by the air flow, and simultaneously, the sound absorbing cylinder 204 which is sleeved at the outer end of the cylinder 101 and the vacuum cavity 206 in the outer cylinder 205 in sequence can also absorb and mutually cooperate the noise generated by the motor 103 and the fan 102 which are in operation in the cylinder 101 and the air flow in the operation, and the noise generated in the air flow, so that the noise generated in the centrifugal fan 100 is jointly reduced.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (5)
1. The utility model provides a low noise centrifugal heat dissipation fan, includes centrifugal fan (100) and falls subassembly (200) of making an uproar, centrifugal fan (100) are including barrel (101) of its outer end to and flabellum (102) in barrel (101), a serial communication port, fall subassembly (200) including barrel (101) in flabellum (102) rear end transverse arrangement fixed mounting's multiunit transverse slow flow board (201), and transverse slow flow board (201) rear end barrel (101) in vertical arrangement fixed mounting's multiunit vertical slow flow board (202), and transverse slow flow board (201) are the same with the structure of vertical slow flow board (202), barrel (101) rear end still fixed mounting has sound absorbing cover (203).
2. The low-noise centrifugal heat radiation fan according to claim 1, wherein the sound absorbing cover (203) has a conical structure, and the sound absorbing cover (203) is made of a sound insulating material.
3. The low-noise centrifugal heat dissipation fan as recited in claim 1, wherein the noise reduction assembly (200) further comprises a sound absorption tube (204) fixedly sleeved at the outer end of the cylinder (101), and the sound absorption tube (204) is made of a sound insulation material.
4. The low-noise centrifugal heat radiation fan according to claim 1, wherein the noise reduction assembly (200) further comprises an outer cylinder (205) fixedly sleeved at the outer end of the sound absorption cylinder (204), and a vacuum cavity (206) arranged in the outer cylinder (205).
5. The low-noise centrifugal heat radiation fan according to claim 1, wherein the centrifugal fan (100) further comprises a motor (103) fixedly mounted at the rear end of the fan blade (102) in the cylinder (101), and a supporting leg (104) fixedly mounted at the outer end of the outer cylinder (205).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321569120.4U CN220268029U (en) | 2023-06-19 | 2023-06-19 | Low-noise centrifugal heat dissipation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321569120.4U CN220268029U (en) | 2023-06-19 | 2023-06-19 | Low-noise centrifugal heat dissipation fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220268029U true CN220268029U (en) | 2023-12-29 |
Family
ID=89298256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321569120.4U Active CN220268029U (en) | 2023-06-19 | 2023-06-19 | Low-noise centrifugal heat dissipation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220268029U (en) |
-
2023
- 2023-06-19 CN CN202321569120.4U patent/CN220268029U/en active Active
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