CN208935020U - A kind of noise reduction casing for blower - Google Patents
A kind of noise reduction casing for blower Download PDFInfo
- Publication number
- CN208935020U CN208935020U CN201821276517.3U CN201821276517U CN208935020U CN 208935020 U CN208935020 U CN 208935020U CN 201821276517 U CN201821276517 U CN 201821276517U CN 208935020 U CN208935020 U CN 208935020U
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- CN
- China
- Prior art keywords
- shell
- cover board
- blower
- noise reduction
- shock
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- 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 noise reduction casing for blower, including shell, the shell is internally provided with motor rack, and multiple shock-absorbing support framves are provided between motor rack and shell；End positioned at the shell air outlet is provided with turnover cover board, and a hollow layer is formed between cover board and casing；The cover board is internally provided with one layer of silencing cotton；The inside of the shell, and cover board corresponding side is provided with multiple abatvoixs, the abatvoix inner hollow, and penetrate through with surface of shell.A kind of noise reduction casing for blower of the utility model, the filler particles body inside shock-absorbing support frame, absorb the vibration generated in motor operation course, i.e. granule with device by resonating, to effectively absorb the noise as brought by motor oscillating, air-flow is maximum at fan outlet, and abatvoix, which is located at dense distribution at shell air outlet, more preferable can obtain to air-flow progress buffered, to further realize the noise reduction of blower.
Description
Technical field
The utility model relates to blower technical field, specially a kind of noise reduction casing for blower.
Background technique
Now in the art, the generation about noise in blower, first is that motor itself issues inevitably at work
Noise, and noise caused by fan vibration is generated when operation；And due to the limitation of ventilation blower condition itself, when blower works
Due to air-flow change and generate powerful pneumatic noise；Secondly be most also easy to produce noise is the position of blower inlet and outlet, from now
Some blower fan structures can see, and be direct inspiration air and release air in import and export, and air can directly encounter shell, and
Change flow direction, shell is caused to resonate, generates noise.
To solve the above-mentioned problems, this case is given birth to therefrom.
Utility model content
(1) the technical issues of solving
The purpose of the utility model is to overcome the deficiencies in the prior art, and providing one kind can reduce motor oscillating noise
And the noise reduction casing for blower of pneumatic noise.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs: a kind of noise reduction for blower
Casing, including shell, the shell are internally provided with motor rack, multiple shock-absorbing supports are provided between motor rack and shell
Frame；End positioned at the shell air outlet is provided with turnover cover board, and a hollow layer is formed between cover board and casing；Institute
It states cover board and is internally provided with one layer of silencing cotton；The inside of the shell, and cover board corresponding side is provided with multiple abatvoixs, it is described
Abatvoix inner hollow, and penetrated through with surface of shell；On the abatvoix, multiple sound-absorbing slots are offered with air side corresponding position
Mouthful.
Preferably, the abatvoix is located at dense distribution at shell air outlet, is located at enclosure interior dispersed distribution.
Preferably, one end of the shock-absorbing support frame is connect with motor rack, and the other end is connect by elastomer block with shell.
Preferably, the shock-absorbing support frame inner hollow, and it is filled with granule.
Preferably, the granule can be one of the grains of sand, grit, gravel, and granule occupies in shock-absorbing support frame
The 95-98% in portion space.
(3) beneficial effect
After adopting the above technical scheme, the utility model compared with prior art, has following advantages:
1, it a kind of noise reduction casing for blower of the utility model: by the filler particles body inside shock-absorbing support frame, inhales
The vibration generated in motor operation course is received, i.e. granule with device by resonating, to effectively absorb by motor oscillating
Brought noise；
2, a kind of noise reduction casing for blower of the utility model: cover board and case lid will form hollow layer, sound-absorbing when closing
Intralamellar part is hollow, communicates with hollow layer, so that the sound wave that air-flow generates, can be passed through from the sound-absorbing notch opened up from abatvoix
The hollow layer formed between cover board and shell, and combine the absorption of silencing cotton realization noise；
3, a kind of noise reduction casing for blower of the utility model: air-flow is maximum at fan outlet, and abatvoix is located at shell
Dense distribution more preferable can obtain and carry out buffered to air-flow at body air outlet, to further realize the noise reduction of blower.
Detailed description of the invention
Fig. 1 is utility model diagram；
Fig. 2 is the utility model front section view；
Fig. 3 is acoustic board structure enlarged diagram in the utility model；
Fig. 4 is shock-absorbing support frame structural schematic diagram in the utility model.
In figure: 1 shell, 2 motor racks, 3 shock-absorbing support framves, 4 cover boards, 5 silencing cottons, 6 abatvoixs, 7 sound-absorbing notches, 8 elasticity
Block, 9 granules.
Specific embodiment
The utility model is further elaborated below by drawings and examples.
As shown in Figs 1-4: a kind of noise reduction casing for blower, including shell 1, shell 1 are internally provided with motor rack
2, multiple shock-absorbing support framves 3 are provided between motor rack 2 and shell 1.It is provided with positioned at the end of 1 air outlet of shell turnover
Cover board 4 forms a hollow layer between cover board 4 and casing 1.Cover board 4 is internally provided with one layer of silencing cotton 5.The inside of shell 1,
And 4 corresponding side of cover board is provided with multiple abatvoixs 6,6 inner hollow of abatvoix, and penetrate through with 1 surface of shell.
Specifically, will form hollow layer when cover board 4 and the lid of shell 1 close, 6 inner hollow of abatvoix is communicated with hollow layer,
So that the sound wave that air-flow generates, it can be passed through from the sound-absorbing notch 7 opened up from abatvoix 6 and be formed between cover board 4 and shell 1
Hollow layer, and combine the absorption of the realization noise of silencing cotton 5.
When on abatvoix 6 hollow layer and 7 inner space of sound-absorbing notch it is limited, after being sticked by dust, make sound wave can not
Into in intracavitary sound-absorbing material, the effect of noise reduction is just lost naturally, and cover board 4 is set, and enables dust in air-flow
Entering when cover board 4 is closed with the lid of shell 1 under driving will form hollow layer, and cover board 4 can be opened, convenient for handling internal formation
Dust.(abatvoix 6 is fabricated using the handy steel material in market)
On abatvoix 6, multiple sound-absorbing notches 7 are offered with air side corresponding position.Abatvoix 6 is located at 1 air outlet of shell
Dense distribution is located at 1 inside dispersed distribution of shell.
Blower generates air draught when working, air-flow can directly touch shell 1, and become flow direction, easily causes unrest
Stream, cause shell 1 resonate, generate noise, due to air-flow change and generate powerful pneumatic noise so that air draught is in shell
The turbulent flow formed at 1 inner wall of body, can be sucked by abatvoix 6, and setting abatvoix 6 can reduce pneumatic noise.And go out in blower
Air-flow is maximum at air port, and abatvoix 6, which is located at dense distribution at 1 air outlet of shell, more preferable can obtain to air-flow progress buffered,
To realize the noise reduction of blower.
One end of shock-absorbing support frame 3 is connect with motor rack 2, and the other end is connect by elastomer block 8 with shell 1.Due to motor
Certain vibration can be generated when operation and forms noise, and shock-absorbing support frame 3 can resonate with motor reduces noise, and elastomer block 8
Certain buffering effect can be then formed to shock-absorbing support frame 3.
3 inner hollow of shock-absorbing support frame, and it is filled with granule 9, granule 9 can be one in the grains of sand, grit, gravel
Kind.The effect of granule 9 is to absorb the vibration that generates in motor operation course, i.e. granule 9 by resonating with device, from
And effectively absorb the noise as brought by motor oscillating.The shape of granule 9 can be the graininess such as rectangular, round, and its body
Product is the smaller the better.
Granule 9 occupies the 94-98% of 3 inner space of shock-absorbing support frame.Granule 9 is shared by the inside of shock-absorbing support frame 3
If space is too small, it will lead to and generate biggish phase separation power between granule 9 and generate noise, it is demonstrated experimentally that i.e. same real
(motor model: Y160L-4, power 15kw, revolving speed 650r/min, air quantity 24930m is used under the conditions of testing3/ h), it is not filled by particle
When body 9, the noise decibel value about 72dB(A of blower generation), when filling the granule 9 of 95-98% capacity, the noise of blower generation
Decibel value about 59-65dB(A), it is seen that granule 9 is when 3 interior fill space of shock-absorbing support frame is 95-98%, for motor
Vibration, which generates noise, has certain noise reduction effect.
Foundation embodiment described above is enlightenment, and through the above description, relevant staff completely can be not
In the range of deviateing this invention thought, various changes and amendments are carried out.This item uses novel technical scope not
The content being confined on specification, it is necessary to the range of its protection is determined according to scope of the claims.
Claims (4)
1. a kind of noise reduction casing for blower, including shell (1), it is characterised in that: the shell (1) is internally provided with electricity
Rack (2) is provided with multiple shock-absorbing support framves (3) between motor rack (2) and shell (1)；In shock-absorbing support frame (3) inside
Sky, and it is filled with granule (9)；End positioned at the shell (1) air outlet is provided with turnover cover board (4), cover board (4)
A hollow layer is formed between casing；The cover board (4) is internally provided with one layer of silencing cotton (5)；The shell (1) it is interior
Portion, and being provided with multiple abatvoixs (6) with cover board (4) corresponding side, abatvoix (6) inner hollow, and with shell (1) surface
Perforation；On the abatvoix (6), multiple sound-absorbing notches (7) are offered with air side corresponding position.
2. a kind of noise reduction casing for blower according to claim 1, it is characterised in that: the abatvoix (6) is located at
Dense distribution at shell (1) air outlet is located at shell (1) internal dispersed distribution.
3. a kind of noise reduction casing for blower according to claim 1, it is characterised in that: the shock-absorbing support frame (3)
One end connect with motor rack (2), the other end is connect by elastomer block (8) with shell (1).
4. a kind of noise reduction casing for blower according to claim 3, it is characterised in that: the granule (9) occupies
The 95-98% of shock-absorbing support frame (3) inner space, granule (9) can be one of the grains of sand, grit, gravel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821276517.3U CN208935020U (en) | 2018-08-09 | 2018-08-09 | A kind of noise reduction casing for blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821276517.3U CN208935020U (en) | 2018-08-09 | 2018-08-09 | A kind of noise reduction casing for blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208935020U true CN208935020U (en) | 2019-06-04 |
Family
ID=66717365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821276517.3U Expired - Fee Related CN208935020U (en) | 2018-08-09 | 2018-08-09 | A kind of noise reduction casing for blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208935020U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113923059A (en) * | 2021-09-16 | 2022-01-11 | 善悦(武汉)高新技术有限公司 | Noise reduction mechanism for 5G radio frequency extension unit and noise reduction method thereof |
-
2018
- 2018-08-09 CN CN201821276517.3U patent/CN208935020U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113923059A (en) * | 2021-09-16 | 2022-01-11 | 善悦(武汉)高新技术有限公司 | Noise reduction mechanism for 5G radio frequency extension unit and noise reduction method thereof |
| CN113923059B (en) * | 2021-09-16 | 2023-05-16 | 善悦(武汉)高新技术有限公司 | Noise reduction mechanism for 5G radio frequency expansion unit and noise reduction method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190604 Termination date: 20210809 |