CN212177526U - Low-noise centrifugal fan - Google Patents
Low-noise centrifugal fan Download PDFInfo
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- CN212177526U CN212177526U CN202020489809.6U CN202020489809U CN212177526U CN 212177526 U CN212177526 U CN 212177526U CN 202020489809 U CN202020489809 U CN 202020489809U CN 212177526 U CN212177526 U CN 212177526U
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Abstract
The utility model discloses a low-noise centrifugal fan, which comprises a fan shell, wherein a fan impeller is arranged in the fan shell, one side of the fan impeller is fixedly installed with the output end of a fan motor through a coupler, an air inlet lining component is arranged on the fan shell at the side of the fan impeller far away from the fan motor, a noise reduction filter is arranged at the side of the air inlet lining component far away from the fan impeller, an air outlet pipe is fixedly installed at one side of the fan shell, a damping supporting seat is fixedly installed at the bottom of the fan motor, and a noise reduction lining layer is fixedly installed on the inner walls of the fan shell, the air inlet lining component, the noise reduction filter and the air outlet pipe; the utility model has the advantages of reasonable and compact structure, the filter treatment that centrifugal fan air current was realized to the filter of making an uproar falls improves centrifugal fan air quality and inside clean, and the amortization inner liner with inhale the sound cotton can inhale the sound to the centrifugal fan air current, improve centrifugal fan's the performance of making an uproar that falls, noise abatement pollutes, and the practicality is stronger.
Description
Technical Field
The utility model relates to a centrifugal fan, in particular to low noise centrifugal fan belongs to centrifugal fan technical field.
Background
With the continuous progress of science and technology, a centrifugal fan is a machine which increases the gas pressure and discharges gas by means of input mechanical energy, and is a driven fluid machine, and the centrifugal fan is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.
At present centrifugal fan in the use, the flow of air current and the friction of air current and centrifugal fan inner wall contact produce great sound, lead to centrifugal fan's use to cause noise pollution to the dust in the air current is stayed and is increased roughly on the centrifugal fan inner wall, further increases the noise, and the practicality is relatively poor.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art centrifugal fan at present in the use, the flow of air current and the friction of air current and centrifugal fan inner wall contact produce great sound, lead to centrifugal fan's use to cause noise pollution to increase roughly on staying the centrifugal fan inner wall of dust in the air current, further noise-increasing's defect provides a low noise centrifugal fan.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model relates to a low-noise centrifugal fan, which comprises a fan shell, wherein a fan impeller is arranged inside the fan shell, one side of the fan impeller is fixedly arranged with the output end of the fan motor through a coupler, an air inlet lining component is arranged on the fan shell at the side of the fan impeller far away from the fan motor, a noise reduction filter is arranged on one side of the air inlet lining component away from the fan impeller, an air outlet pipe is fixedly arranged on one side of the fan shell, the bottom of the fan motor is fixedly provided with a damping supporting seat, the inner walls of the fan shell, the air inlet lining component, the noise reduction filter and the air outlet pipe are all fixedly provided with a noise reduction lining layer, the air inlet lining component comprises a lining cover body and a primary flange, the primary flange is fixedly arranged on one side of the lining cover body, one side of the lining cover body, which is far away from the primary flange, is inserted into the fan shell on one side of the fan impeller.
As a preferred technical scheme of the utility model, it includes filters air-supply line, guide plate, second grade flange and filtering component to fall the filter of making an uproar, the one end fixed mounting who filters the air-supply line has the second grade flange, all be equipped with the screw hole on second grade flange and the one-level flange, one side that the second grade flange was kept away from to the filtration air-supply line is equipped with the air intake, the inside one side fixed mounting who is close to the air intake of filtration air-supply line has the guide plate, the filtration air-supply line that air intake one side was kept away from to.
As the utility model discloses a preferred technical scheme, the filtering component includes the connecting plate and filters the otter board, it is the arc surface structure setting to filter the otter board, it has the connecting plate to filter otter board outside fixed mounting, filter the otter board and pass through the connecting plate and filter air-supply line inner wall fixed mounting.
As an optimal technical scheme of the utility model, second grade flange and one-level flange pass through the bolt fastening, pass through the bolt fastening between one-level flange and the fan casing.
As a preferred technical scheme of the utility model, the guide plate is the ARC structure setting, just guide plate inner wall fixed mounting has the sound of inhaling cotton.
As an optimal technical scheme of the utility model, equal fixed mounting has vibration-damping rubber pad between the bottom of shock attenuation bearing and the fan motor.
The utility model discloses the beneficial effect who reaches is:
1. this low noise centrifugal fan, compact structure, convenient to use through setting up the filter of making an uproar that falls in centrifugal fan air inlet end, utilizes the inside filter assembly of filter to realize the filtration treatment of centrifugal fan air current, improves centrifugal fan's air quality, reduces the pollution of dust to the equipment is inside, and falls the filter of making an uproar and pass through second grade flange and bolt and one-level flange fixed mounting for fall the filter easy dismounting that makes an uproar.
2. This low noise centrifugal fan through setting up the guide plate in the filter of making an uproar falls to and fan casing, air inlet inside lining subassembly, fall the amortization inner liner of the inner wall fixed mounting of making an uproar filter and play tuber pipe, the guide plate can lead to the centrifugal fan air inlet end air current and concentrate, and be equipped with on the guide plate and inhale the sound cotton, the amortization inner liner with inhale the sound cotton and can inhale the sound to the centrifugal fan air current, thereby improve centrifugal fan's the performance of making an uproar that falls, noise pollution reduction, the practicality is stronger.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the fan housing of the present invention;
FIG. 3 is a schematic structural view of the intake air lining assembly of the present invention;
fig. 4 is a schematic structural view of the noise reduction filter of the present invention;
fig. 5 is a schematic structural view of a deflector of the present invention;
fig. 6 is a schematic structural diagram of the filter screen plate of the present invention.
In the figure: 1. a fan housing; 2. a fan impeller; 3. an air intake liner assembly; 31. a lining cover body; 32. a primary flange; 33. a threaded hole; 34. a bolt; 4. a noise reduction filter; 41. filtering the air inlet pipe; 42. a baffle; 43. a secondary flange; 44. an air inlet; 45. a connecting plate; 46. a filter screen plate; 47. sound-absorbing cotton; 5. an air outlet pipe; 6. a fan motor; 7. a damping support base; 8. the amortization inside lining layer.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Examples
As shown in fig. 1-6, a low-noise centrifugal fan comprises a fan housing 1, a fan impeller 2 is arranged inside the fan housing 1, one side of the fan impeller 2 is fixedly mounted with an output end of a fan motor 6 through a coupling, an air inlet lining component 3 is arranged on the fan housing 1 at the side of the fan impeller 2 away from the fan motor 6, a noise reduction filter 4 is arranged at the side of the air inlet lining component 3 away from the fan impeller 2, an air outlet pipe 5 is fixedly mounted at one side of the fan housing 1, a shock absorption supporting seat 7 is fixedly mounted at the bottom of the fan motor 6, noise reduction lining layers 8 are fixedly mounted on inner walls of the fan housing 1, the air inlet lining component 3, the noise reduction filter 4 and the air outlet pipe 5, the air inlet lining component 3 comprises a lining cover body 31 and a primary flange 32, a primary flange 32 is fixedly mounted at one side of the lining, one side of the inner cover body 31, which is far away from the primary flange 32, is inserted into the fan shell 1 on one side of the fan impeller 2, and the inner wall of the inner cover body 31 is fixedly provided with a silencing inner liner 8.
Further, it includes filtration air-supply line 41, guide plate 42, second grade flange 43 and filtering component to fall filter 4 of making an uproar, the one end fixed mounting who filters air-supply line 41 has second grade flange 43, all be equipped with screw hole 33 on second grade flange 43 and the one-level flange 32, the one side that filters air-supply line 41 and keeps away from second grade flange 43 is equipped with air intake 44, filter the inside one side fixed mounting who is close to air intake 44 of air-supply line 41 has guide plate 42, guide plate 42 is kept away from and is equipped with filtering component in the filtration air-supply line 41 of air intake 44 one side, and the inside fixed mounting who filters air-supply line 41 has amortization inner liner 8, and amortization inner liner 8 adopts sound absorbing material to make for having the inside lining of amortization performance, improves the noise reduction performance of centrifugal fan.
Further, the filter assembly comprises a connecting plate 45 and a filter screen plate 46, the filter screen plate 46 is arranged in an arc surface structure, the connecting plate 45 is fixedly mounted on the outer side of the filter screen plate 46, and the filter screen plate 46 is fixedly mounted on the inner wall of the filter air inlet pipe 41 through the connecting plate 45, so that the filtering area is increased, and the inner wall of the filter air inlet pipe 41 is far away from the filter air inlet pipe.
Further, the secondary flange 43 and the primary flange 32 are fixed through bolts 34, the primary flange 32 and the fan shell 1 are fixed through the bolts 34, and the flanges and the bolts 34 are matched, firmly installed and detachable.
Further, guide plate 42 is the setting of cambered surface structure, just guide plate 42 inner wall fixed mounting has the sound cotton 47 of inhaling for guide plate 42 has the performance of inhaling the sound and making an uproar.
Furthermore, damping rubber pads are fixedly mounted at the bottom of the damping supporting seat 7 and between the damping supporting seat 7 and the fan motor 6, so that the fan motor 6 of the centrifugal fan is subjected to damping installation, the vibration and vibration noise of the motor are reduced, and the fan motor 6 is a waterproof plastic package motor.
The working principle is as follows: when in use, the fan motor 6 rotates to drive the fan impeller 2 inside the fan shell 1 to rotate, under the rotation action of the fan impeller 2, outside air enters from the air inlet 44 on the filtering air inlet pipe 41, flows to the middle of the filtering air inlet pipe 41 under the guiding of the guiding plate 42 when passing through the internal guiding plate 42, then passes through the filtering screen 46 in a centralized way, thereby reducing contact, friction and noise between the air flow and the inner wall, the filtering treatment of the air flow of the centrifugal fan can be realized by utilizing the filtering component inside the filter, the air quality of the centrifugal fan is improved, then the air flow passes through the lining cover body 31 of the air inlet lining component 3 and finally is discharged from the air outlet pipe 5, because the sound absorption cotton 47 is arranged on the guiding plate 42, the inner lining layer 8 fixedly arranged on the inner walls of the fan shell 1, the air inlet lining component 3, the noise reduction filter 4 and the air outlet pipe 5, the sound, thereby improve centrifugal fan's the performance of making an uproar of falling, noise pollution is reduced, and air inlet inside lining subassembly 3 is fixed with fan casing 1 through one-level flange 32 and bolt 34, it is fixed with one-level flange 32 that filter 4 of making an uproar falls through second grade flange 43 and bolt 34, make on the centrifugal fan filter 4 of making an uproar, the design of 3 modularization demountable installation of air inlet inside lining subassembly, and dismouting easy operation, it is easy, filter the air current of air inlet end inlet air of centrifugal fan, can avoid the inside dust that is detained of centrifugal fan to increase the inner wall coarse simultaneously, the practicality is stronger.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a low noise centrifugal fan which characterized in that: the novel fan is characterized by comprising a fan shell (1), wherein a fan impeller (2) is arranged inside the fan shell (1), one side of the fan impeller (2) is fixedly installed with an output end of a fan motor (6) through a coupler, an air inlet lining component (3) is arranged on the fan shell (1) at the side, far away from the fan motor (6), of the fan impeller (2), a noise reduction filter (4) is arranged at the side, far away from the fan impeller (2), of the air inlet lining component (3), an air outlet pipe (5) is fixedly installed at one side of the fan shell (1), a damping supporting seat (7) is fixedly installed at the bottom of the fan motor (6), silencing lining layers (8) are fixedly installed on the inner walls of the fan shell (1), the air inlet lining component (3), the noise reduction filter (4) and the air outlet pipe (5), and the air inlet lining component (, one side of the inner lining cover body (31) is fixedly provided with a primary flange (32), and one side, far away from the primary flange (32), of the inner lining cover body (31) is inserted into the fan shell (1) on one side of the fan impeller (2).
2. A low noise centrifugal fan according to claim 1, wherein: noise reduction filter (4) are including filtering air-supply line (41), guide plate (42), second grade flange (43) and filtering component, the one end fixed mounting of filtering air-supply line (41) has second grade flange (43), all be equipped with screw hole (33) on second grade flange (43) and one-level flange (32), one side that second grade flange (43) were kept away from in filtration air-supply line (41) is equipped with air intake (44), one side fixed mounting that filtration air-supply line (41) inside is close to air intake (44) has guide plate (42), be equipped with filtering component in filtration air-supply line (41) that air intake (44) one side was kept away from in guide plate (42).
3. A low noise centrifugal fan according to claim 2, wherein: the filter assembly comprises a connecting plate (45) and a filter screen plate (46), the filter screen plate (46) is arranged in an arc surface structure, the connecting plate (45) is fixedly mounted on the outer side of the filter screen plate (46), and the filter screen plate (46) is fixedly mounted on the inner wall of the filter air inlet pipe (41) through the connecting plate (45).
4. A low noise centrifugal fan according to claim 2, wherein: the secondary flange (43) and the primary flange (32) are fixed through bolts (34), and the primary flange (32) and the fan shell (1) are fixed through the bolts (34).
5. A low noise centrifugal fan according to claim 2, wherein: guide plate (42) are the ARC structure setting, just guide plate (42) inner wall fixed mounting has sound absorption cotton (47).
6. A low noise centrifugal fan according to claim 1, wherein: and damping rubber pads are fixedly arranged at the bottom of the damping supporting seat (7) and between the damping supporting seat (7) and the fan motor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020489809.6U CN212177526U (en) | 2020-04-07 | 2020-04-07 | Low-noise centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020489809.6U CN212177526U (en) | 2020-04-07 | 2020-04-07 | Low-noise centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212177526U true CN212177526U (en) | 2020-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020489809.6U Active CN212177526U (en) | 2020-04-07 | 2020-04-07 | Low-noise centrifugal fan |
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| CN (1) | CN212177526U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464468A (en) * | 2021-06-25 | 2021-10-01 | 浙江福霸机电有限公司 | Small-size centrifugal fan of low noise type with self-cleaning structure |
| CN113499650A (en) * | 2021-07-30 | 2021-10-15 | 山西新华防化装备研究院有限公司 | Comprehensive purification filter for kitchen |
| WO2022161542A3 (en) * | 2022-05-12 | 2023-01-19 | 苏州迈创信息技术有限公司 | Heat dissipation and air exhaust device of power distribution cabinet |
-
2020
- 2020-04-07 CN CN202020489809.6U patent/CN212177526U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464468A (en) * | 2021-06-25 | 2021-10-01 | 浙江福霸机电有限公司 | Small-size centrifugal fan of low noise type with self-cleaning structure |
| CN113464468B (en) * | 2021-06-25 | 2024-05-24 | 浙江福霸机电有限公司 | Low-noise type small centrifugal fan with self-cleaning structure |
| CN113499650A (en) * | 2021-07-30 | 2021-10-15 | 山西新华防化装备研究院有限公司 | Comprehensive purification filter for kitchen |
| WO2022161542A3 (en) * | 2022-05-12 | 2023-01-19 | 苏州迈创信息技术有限公司 | Heat dissipation and air exhaust device of power distribution cabinet |
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