CN208221203U - A kind of low-noise fan - Google Patents
A kind of low-noise fan Download PDFInfo
- Publication number
- CN208221203U CN208221203U CN201820796049.6U CN201820796049U CN208221203U CN 208221203 U CN208221203 U CN 208221203U CN 201820796049 U CN201820796049 U CN 201820796049U CN 208221203 U CN208221203 U CN 208221203U
- Authority
- CN
- China
- Prior art keywords
- rectangular base
- bottom plate
- inner casing
- blower
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of low-noise fans, belong to blower field, including housing unit, blower, impeller, air outlet, air inlet and square net；It further include bottom plate, damping；Housing unit includes shell, inner casing and rectangular base, and shell and inner casing are the rectangular box shape of bottom opening；Filling is equipped with acoustical cotton between shell and inner casing；The inner wall of inner casing is equipped with several continuous lug bosses；Damping is equipped with attaching nut, upper padding plate, lower bolster, sleeve, compress gasket and connection bolt；Connection bolt is each passed through compress gasket, sleeve, lower bolster, rectangular base, upper padding plate and bottom plate and is fixedly connected with rectangular base with bottom plate by attaching nut.A kind of low-noise fan of the utility model has multilayer denoising structure, effectively prevents the noise generated in fan operation, reduces fan noise and transmit to outside, promote the stability and service life of blower, and internal structure is simple, convenient for safeguarding.
Description
Technical field
The utility model relates to blower fields, more particularly to a kind of low-noise fan.
Background technique
Blower is widely used in the industrial production, blower is common auxiliary production equipment, is mainly used for ventilation and dedusting
In device, blower can be also seen in heat dissipation equipment.At work, air-flow enters blade space by air inlet to blower, so
Afterwards under the driving of blade, forms wind and come out acting.The air inlet mode of existing market upper fan be mainly use it is direct into
Wind, is usually taken the design of simple square net in the air inlet of blower, due to air-flow by blower sizes it is inconsistent into,
Pressure change occurs when outlet to cause air pulsing and cause pneumatic noise, and leading position is occupied with pneumatic noise, current
Blower is by being arranged square net in air inlet, although sundries inspiration blower can be blocked and protect the safety of people, side
Shape grid can not effectively control noise caused by blower, cause the sound of entire blower to be made an uproar very big.It is, therefore, desirable to provide having
The scheme of effect solves problem above.
Utility model content
In order to overcome the drawbacks of the prior art, a kind of low-noise fan of the utility model has multilayer denoising structure, has
Effect prevents the noise generated in fan operation, reduces fan noise and transmits to outside, promotes the stability and service life of blower,
And internal structure is simple, it is convenient for safeguarding.
For this purpose, the utility model uses following technical scheme:
The utility model provides a kind of low-noise fan, including housing unit, the wind inside the housing unit
Machine, the impeller being fixed on the output shaft of the blower, positioned at the housing unit side and close to the impeller outlet air
Mouthful, and positioned at the housing unit other side and close to air inlet of the blower far from the impeller be fixed at described
On housing unit and square net corresponding with the air inlet；
Further include in the housing unit and be fixed at the bottom plate of the blower bottom, fix company with the bottom plate
The damping connect；
The housing unit includes shell, inner casing and rectangular base, and the shell and the inner casing are bottom opening
Rectangular box shape；The rectangular base be set to the opening, and the rectangular base with the shell and the inner casing
It is fixedly connected；Be between the shell and the inner casing it is hollow, between the shell and the inner casing filling be equipped with acoustical cotton；
The inner wall of the inner casing is equipped with several continuous lug bosses；
The damping is successively arranged attaching nut from top to bottom, is located at below the bottom plate and is bonded with the bottom plate
Upper padding plate, below the rectangular base and be bonded with the rectangular base lower bolster, sleeve, positioned at the lower bolster
Lower section and with the lower bolster fitting compress gasket and connect bolt；
The sleeve fixing sleeve is set on the connection bolt, an end face of the sleeve and the lower end face paste of the bottom plate
It closes, the other end of the sleeve is bonded with the upper surface of the compress gasket, and the connection bolt is each passed through the compression
Gasket, the sleeve, the lower bolster, the rectangular base, the upper padding plate and the bottom plate simultaneously pass through the connection spiral shell
Rectangular base is fixedly connected by mother with the bottom plate.
Optionally, the acoustical cotton is PU sound-proof material.
Optionally, damping glue is coated on the lug boss.
Optionally, the outer end that the shell is located at the air outlet is fixed with air-ducting ring, the diameter of the air-ducting ring by
It gradually becomes smaller inside outside.
Optionally, the rectangular base is equipped with groove close to one end of the bottom plate, is fixed with buffering in the groove
Layer, the upper surface of the buffer layer is bonded with the lower end surface of the bottom plate.
Optionally, the upper padding plate and the lower bolster are circular ring shape.
The utility model has the following beneficial effects:
A kind of low-noise fan of the utility model has multilayer denoising structure, effectively generates in prevention fan operation
Noise reduces fan noise and transmits to outside, promote the stability and service life of blower, and internal structure is simple, convenient for dimension
Shield.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for low-noise fan that specific embodiment of the present invention provides；
Fig. 2 is the structural schematic diagram of the amplification for the damping that specific embodiment of the present invention provides.
In figure:
1, housing unit；2, acoustical cotton；3, blower；4, output shaft；5, impeller；6, air outlet；7, air inlet；8, bottom plate；
9, damping；10, air-ducting ring；11, shell；12, inner casing；13, rectangular base；14, buffer layer；91, attaching nut；92, on
Backing plate；93, lower bolster；94, sleeve；95, compress gasket；96, bolt is connected；121, lug boss.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
Described in Fig. 1-2, a kind of low-noise fan, blower 3, fixation including housing unit 1, inside housing unit 1
Impeller 5 on the output shaft 4 of blower 3, positioned at 1 side of housing unit and close to the air outlet 6 of impeller 5, be located at shell group
It 1 other side of part and close to air inlet 7 of the blower 3 far from impeller 5 and is fixed on housing unit 1 and opposite with air inlet 7
The square net answered；It further include being located in housing unit 1 and being fixed at the bottom plate 8 of 3 bottom of blower, be fixedly connected with bottom plate 8
Damping 9；Housing unit 1 includes shell 11, inner casing 12 and rectangular base 13, and shell 11 and inner casing 12 are bottom surface
The rectangular box shape of opening；Rectangular base 13 is set to opening, and rectangular base 13 is fixedly connected with shell 11 and inner casing 12；
Be between shell 11 and inner casing 12 it is hollow, between shell 11 and inner casing 12 filling be equipped with acoustical cotton 2；It is set on the inner wall of inner casing 12
There are several continuous lug bosses 121；Damping 9 be successively arranged attaching nut 91 from top to bottom, be located at the lower section of bottom plate 8 and with bottom
Upper padding plate 92 that plate 8 is bonded, positioned at the lower section of rectangular base 13 and be bonded with rectangular base 13 lower bolster 93, sleeve 94, be located at
The lower section of lower bolster 93 and the compress gasket 95 being bonded with lower bolster 93 and it connect bolt 96；94 fixing sleeve of sleeve is set to connection
On bolt 96, an end face of sleeve 94 is bonded with the lower end surface of bottom plate 8, the other end of sleeve 94 and the upper end of compress gasket 95
Face paste is closed, and connection bolt 96 is each passed through compress gasket 95, sleeve 94, lower bolster 93, rectangular base 13, upper padding plate 92 and bottom
Rectangular base 13 is simultaneously fixedly connected by plate 8 by attaching nut 91 with bottom plate 8.
Above to implement, specifically, blower 3 drives the rotation of output shaft 4 that the impeller 5 being fixed on output shaft is driven to rotate,
So that air-flow is flowed into from air inlet 7, flowed out from air outlet 6；Housing unit 1 includes shell 11, inner casing 12 and rectangular base
Seat 13, shell 11 and inner casing 12 are the rectangular box shape of bottom opening；Rectangular base 13 is set to opening, and rectangular base 13 is equal
It is fixedly connected with shell 11 and inner casing 12；Be between shell 11 and inner casing 12 it is hollow, filled between shell 11 and inner casing 12
Equipped with acoustical cotton 2；By being equipped with acoustical cotton 2 in hollow interior filling；Since acoustical cotton 2 is using the open-celled structure of Fiber Materials, shape
It mixes at countless fiber interweavings and forms fine gap, when sound enters in gap passage, since channel is longer, sound
Propagation path is long, and sound can control collision in communication process, gradually use up energy in this process, play sound-absorbing
Effect, obstruct the effect of noise transmission；Several continuous lug bosses 121 are equipped on the inner wall of inner casing 12 simultaneously, by setting
Set concave part wave of the wavelength between lug boss 121 and adjacent projections 121 that lug boss 121 can allow noise to issue
It moves and is gradually reduced fluctuation, the frequency that interior noise can be made to vibrate gradually decreases, and by setting lug boss 121 and inhales
Sound cotton 2 can limited obstruction noise transmission, play good soundproof effect；Additionally by the bottom of blower 3, damping is set
Mechanism 9, damping 9 are successively arranged attaching nut 91, positioned at upper padding plate bottom plate 8 lower section and be bonded with bottom plate 8 from top to bottom
92, positioned at the lower section of rectangular base 13 and be bonded with rectangular base 13 lower bolster 93, sleeve 94, be located at below lower bolster 93 and with
The compress gasket 95 and connection bolt 96 that lower bolster 93 is bonded；94 fixing sleeve of sleeve is set on connection bolt 96, sleeve 94
One end face is bonded with the lower end surface of bottom plate 8, and the other end of sleeve 94 is bonded with the upper surface of compress gasket 95, connects bolt 96
It is each passed through compress gasket 95, sleeve 94, lower bolster 93, rectangular base 13, upper padding plate 92 and bottom plate 8 and passes through attaching nut
91 are fixedly connected with rectangular base 13 with bottom plate 8.94 fixing sleeve of sleeve is set on connection bolt 96, an end face of sleeve 94 and bottom
The lower end surface of plate 8 is bonded, and the other end of sleeve 94 is bonded with the upper surface of compress gasket 95, and upper padding plate 92 and lower bolster 93 are adopted
With rubber mat plate, so that bottom plate 8 is not directly contacted with rectangular base 13, rubber mat plate can effectively prevent blower 3 itself
Vibration can effectively reduce vibration brought by blower 3, reduce so that blower 3 itself will not make a noise because of vibration is excessive
Vibrational energy transmitting, reduces the noise generated by vibration, improves 3 noise reduction effect of blower；It is attached using connection bolt 96,
Structure is simply conveniently replaceable and safeguards.
Optionally, acoustical cotton 2 is PU sound-proof material.
Optionally, damping glue is coated on lug boss 121.
Specifically, it is coated with damping glue on 121 surface of lug boss, MH damping glue, and damping glue point can be selected in damping glue
It smears twice, it is ensured that smearing is uniformly solid and reliable, interior noise can be prevented through inner casing 12, damping glue can effectively prevent
Noise transmission, to improve the noise abatement soundproof effect of blower 3.
Optionally, it is the concentration for improving wind path, increases air quantity, plays the role of gathering air flow direction.Shell 11 is located at
The outer end in air port 6 is fixed with air-ducting ring 10, and the diameter of air-ducting ring 10 by gradually becoming smaller inside outside.
Optionally, rectangular base 13 is equipped with groove close to one end of bottom plate 8, is fixed with buffer layer 15 in groove, buffers
The upper surface of layer 15 is bonded with the lower end surface of bottom plate 8.
Specifically, 15 one end of buffer layer and the lower surface of rectangular base 13 fit closely, specifically, buffer layer 15 by
Sponge material is made, and the foam-rubber cushion in buffer layer 15 strengthens the effect of the vibration proof of blower 3, to further prevent because of blower
3 vibrations generate noise.
Optionally, upper padding plate 92 and lower bolster 93 are circular ring shape.
The utility model is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from this reality
In the case where with novel spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.This reality
It is not limited to the particular embodiment disclosed with novel, other embodiments fallen into claims hereof all belong to
In the range of the utility model protection.
Claims (6)
1. a kind of low-noise fan is set including housing unit (1), positioned at the housing unit (1) internal blower (3), fixation
In on the output shaft (4) of the blower (3) impeller (5), be located at the housing unit (1) side and close to the impeller (5)
Air outlet (6), be located at the housing unit (1) other side and close to the blower (3) far from the impeller (5) air inlet
(7) it and is fixed on the housing unit (1) and square net corresponding with the air inlet (7)；Its feature exists
In:
Further include interior positioned at the housing unit (1) and is fixed at the bottom plate (8) of the blower (3) bottom and the bottom plate
(8) damping (9) being fixedly connected；
The housing unit (1) includes shell (11), inner casing (12) and rectangular base (13), the shell (11) with it is described
Inner casing (12) is the rectangular box shape of bottom opening；The rectangular base (13) is set to the opening, and the rectangular base
(13) it is fixedly connected with the shell (11) and the inner casing (12)；It is between the shell (11) and the inner casing (12)
Hollow, filling is equipped with acoustical cotton (2) between the shell (11) and the inner casing (12)；It is set on the inner wall of the inner casing (12)
There are several continuous lug bosses (121)；
The damping (9) be successively arranged from top to bottom attaching nut (91), be located at the bottom plate (8) below and with the bottom
The upper padding plate (92) of plate (8) fitting is located at the underlay being bonded below the rectangular base (13) and with the rectangular base (13)
Plate (93), sleeve (94), be located at the lower bolster (93) below and be bonded with the lower bolster (93) compress gasket (95), with
And connection bolt (96)；
Sleeve (94) fixing sleeve is set on the connection bolt (96), an end face of the sleeve (94) and the bottom plate
(8) lower end surface fitting, the other end of the sleeve (94) are bonded with the upper surface of the compress gasket (95), the connection
Bolt (96) is each passed through the compress gasket (95), the sleeve (94), the lower bolster (93), the rectangular base
(13), the upper padding plate (92) and the bottom plate (8) and by the attaching nut (91) by rectangular base (13) with it is described
Bottom plate (8) is fixedly connected.
2. a kind of low-noise fan as described in claim 1, it is characterised in that:
The acoustical cotton (2) is PU sound-proof material.
3. a kind of low-noise fan as described in claim 1, it is characterised in that:
Damping glue is coated on the lug boss (121).
4. a kind of low-noise fan as described in claim 1, it is characterised in that:
The outer end that the shell (11) is located at the air outlet (6) is fixed with air-ducting ring (10), the air-ducting ring (10) it is straight
Diameter by gradually becoming smaller inside outside.
5. a kind of low-noise fan as described in claim 1, it is characterised in that:
The rectangular base (13) is equipped with groove close to the one end of the bottom plate (8), is fixed with buffer layer in the groove
(15), the upper surface of the buffer layer (15) is bonded with the lower end surface of the bottom plate (8).
6. a kind of low-noise fan as described in claim 1, it is characterised in that:
The upper padding plate (92) and the lower bolster (93) are circular ring shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820796049.6U CN208221203U (en) | 2018-05-25 | 2018-05-25 | A kind of low-noise fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820796049.6U CN208221203U (en) | 2018-05-25 | 2018-05-25 | A kind of low-noise fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208221203U true CN208221203U (en) | 2018-12-11 |
Family
ID=64506783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820796049.6U Expired - Fee Related CN208221203U (en) | 2018-05-25 | 2018-05-25 | A kind of low-noise fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208221203U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631295A (en) * | 2018-12-13 | 2019-04-16 | 湖北泰和电气有限公司 | A kind of safty shield for having decrease of noise functions for air-conditioning |
| CN110224212A (en) * | 2019-05-06 | 2019-09-10 | 广州文冲船厂有限责任公司 | A kind of radar antenna mechanicalness noise denoising device |
-
2018
- 2018-05-25 CN CN201820796049.6U patent/CN208221203U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631295A (en) * | 2018-12-13 | 2019-04-16 | 湖北泰和电气有限公司 | A kind of safty shield for having decrease of noise functions for air-conditioning |
| CN110224212A (en) * | 2019-05-06 | 2019-09-10 | 广州文冲船厂有限责任公司 | A kind of radar antenna mechanicalness noise denoising device |
| CN110224212B (en) * | 2019-05-06 | 2021-09-03 | 广州文冲船厂有限责任公司 | Radar antenna mechanical noise reduction device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20190525 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |