CN209385411U - A kind of denoising device, fan - Google Patents
A kind of denoising device, fan Download PDFInfo
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- CN209385411U CN209385411U CN201822009296.XU CN201822009296U CN209385411U CN 209385411 U CN209385411 U CN 209385411U CN 201822009296 U CN201822009296 U CN 201822009296U CN 209385411 U CN209385411 U CN 209385411U
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- baffle
- fan
- denoising device
- air outlet
- cavity
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Abstract
The embodiment of the present application provides a kind of denoising device, fan, and the denoising device is set to the air outlet side of fan, to shunt the air-flow of the air outlet；It is formed with a cavity inside the denoising device, and is formed with the through-hole being connected to the cavity on the side of the flabellum side of the fan in the denoising device, the cavity is enabled to pass through the through-hole and external airflow connection.Above-mentioned denoising device is set by the air outlet side in fan, the air-flow of the air outlet can be shunted, and the heat dissipation performance of fan is not interfered with, simultaneously, the noise that fan generates in the running can be reduced by the cavity formed inside denoising device, so that the noise that fan generates in the running will not have an impact user.
Description
Technical field
This application involves electronic equipment noise reduction field, especially a kind of denoising device, fan and noise-reduction method.
Background technique
With the continuous progress of science and technology, electronic equipment popularity rate is also higher and higher, such as laptop has become people
Articles indispensable in life and work.In existing laptop, when fan running in radiating module, it can produce
Raw certain noise, the operation current to user have an impact, and then reduce the usage experience of user.
Utility model content
In view of the above-mentioned problems in the prior art, the embodiment of the present application provide be set to the air outlet side of fan to
The denoising device of the noise generated when reducing fan running, and fan and noise-reduction method using the denoising device.
The embodiment of the present application provides a kind of denoising device, and the denoising device is set to the air outlet side of fan, to divide
Flow the air-flow of the air outlet；
A cavity is formed with inside the denoising device, and in the denoising device close to the side of the flabellum side of the fan
The through-hole being connected to the cavity is formed on face.
In some embodiments of the present application, the denoising device includes:
First baffle is arranged close to the flabellum side；
The first side of second baffle, first side and the first baffle is arranged in angle, to pass through described first
The airflow diversion of baffle and the second baffle to the air outlet；
Third baffle connect with the second side of the second side of the second baffle and the first baffle, surrounds
The cavity, wherein the through-hole is arranged on the first baffle.
In some embodiments of the present application, the arc-shaped setting of first baffle, and to far from one lateral bending of flabellum
Song, the center line of the arc and the center line of the shaft of the fan are arranged in the same direction.
In some embodiments of the present application, the gradually change of the air outlet formed between the first baffle and the flabellum
Greatly.
In some embodiments of the present application, the air outlet that is formed between the second baffle and the side wall of the air outlet
It becomes larger.
In some embodiments of the present application, in the fan running, the intrinsic frequency of the cavity and the fan
Frequency noise between difference be in preset range.
In some embodiments of the present application, the cross-sectional area of the through-hole and the ratio of the volume of the cavity can lead to
Cross frequency noise when fan rotation, the spread speed of the sound and the first baffle, the second baffle and
The thickness of the third baffle determines.
In some embodiments of the present application, the first baffle, the second baffle and the third baffle are set to
The fan fan box bottom surface on, and with the plane perpendicular.
The embodiment of the present application also provides a kind of fans, comprising:
Box body；
Fan body is set in the box body, in fan body rotation, forms air inlet between the box body
And air outlet；
Denoising device as described above is set to the air outlet side, to shunt the outlet air by the denoising device
The air-flow of mouth, the noise of the fan is reduced by the cavity and through-hole of the denoising device.
The embodiment of the present application also provides a kind of noise-reduction method, the method is applied to an electronic equipment with fan,
The air outlet side of the fan is equipped with denoising device as described above, which comprises
Obtain the frequency noise when fan running；
If the difference between the intrinsic frequency of the cavity of the frequency noise and the denoising device exceeds preset range；
The revolving speed of the fan is adjusted, so that the difference between fan frequency noise adjusted and the intrinsic frequency
Value is in the preset range.
Compared with prior art, noise reduction assembling device provided by the embodiments of the present application and the fan institute using the denoising device
Have the advantage that for, by the denoising device of the air outlet side setting in fan, can air-flow to air outlet into
Row shunts, and does not interfere with the heat dissipation performance of fan, meanwhile, it is capable to reduce fan by the cavity formed inside denoising device
The noise generated in the running, so that the noise that fan generates in the running will not have an impact user.
It is had the beneficial effect that possessed by noise-reduction method provided by the embodiments of the present application, passes through the air outlet side setting in fan
The denoising device, make it possible to be adjusted the revolving speed of fan, so realize reduce fan in the running caused by
Noise reduces the influence that noise generates user, improves the usage experience of user.
Detailed description of the invention
Fig. 1 is that the denoising device in the embodiment of the present application is mounted on the structural schematic diagram on fan；
Fig. 2 is the schematic top plan view of Fig. 1；
Fig. 3 is the flow chart of the noise-reduction method in the embodiment of the present application.
Appended drawing reference:
1, cavity；2, through-hole；3, first baffle；4, second baffle；5, third baffle；6, box body.7, fan body；
Specific embodiment
To make those skilled in the art better understand the technical solution of the application, with reference to the accompanying drawing and specific embodiment party
Formula elaborates to the application.
The various schemes and feature of the application are described herein with reference to attached drawing.
By the description of the preferred form with reference to the accompanying drawings to the embodiment for being given as non-limiting example, the application's
These and other characteristic will become apparent.
It is also understood that although the application is described referring to some specific examples, those skilled in the art
Member realizes many other equivalents of the application in which can determine, they have feature as claimed in claim and therefore all
In the protection scope defined by whereby.
When read in conjunction with the accompanying drawings, in view of following detailed description, above and other aspect, the feature and advantage of the application will become
It is more readily apparent.
The specific embodiment of the application is described hereinafter with reference to attached drawing；It will be appreciated, however, that the embodiment of institute's utility model is only
It is only the example of the application, various ways implementation can be used.Known and/or duplicate function and structure and be not described in detail with
According to the operation of the history of user, true intention is distinguished, unnecessary or extra details is avoided to make the application smudgy.
Therefore, the specific structural and functional details of this paper institute utility model are not intended to restriction, but want as just right
The basis asked and representative basis are used to that those skilled in the art to be instructed diversely to make with substantially any appropriate detailed construction
Use the application.
This specification can be used phrase " in one embodiment ", " in another embodiment ", " in another embodiment
In " or " in other embodiments ", it can be referred to one or more of the identical or different embodiment according to the application.
The embodiment of the present application provides a kind of denoising device, and as depicted in figs. 1 and 2, the denoising device is set to fan
Air outlet side, to shunt the air-flow of the air outlet；A cavity 1 is formed with inside the denoising device, and in the noise reduction
Device is formed with the through-hole 2 being connected to the cavity 1 on the side of the flabellum side of the fan, enables the cavity 1
Enough pass through the through-hole 2 and external airflow connection.Above-mentioned denoising device is set by the air outlet side in fan, it can be right
The air-flow of the air outlet is shunted, and does not interfere with the heat dissipation performance of fan, meanwhile, it is capable to by inside denoising device
The cavity 1 of formation reduces the noise that fan generates in the running so that the noise that generates in the running of fan will not to
Family has an impact.
In some embodiments of the present application, as depicted in figs. 1 and 2, the denoising device includes first baffle 3, second
Baffle 4 and third baffle 5, wherein the first baffle 3 is arranged close to the flabellum side；The first side of the second baffle 4
It is arranged with the first side of the first baffle 3 in angle, the second baffle 4 is formed by angle with the first baffle 3
Front end towards the air outlet air-flow outflow direction be arranged, with pass through 4 pairs of institutes of the first baffle 3 and the second baffle
State the airflow diversion of air outlet；The two sides of the third baffle 5 respectively with the second side of the second baffle 4 and described
The second side of one baffle 3 connects, and surrounds the cavity 1, wherein the through-hole 2 is arranged on the first baffle 3, at this
In embodiment, the quantity of the through-hole 2 can be one or more.
In some embodiments of the present application, as depicted in figs. 1 and 2, the arc-shaped setting of the first baffle 3, and Xiang Yuan
From the flabellum curving, the center line of the arc and the center line of the shaft of the fan are arranged in the same direction, so as to bring about the desired sensation
Stream can more smoothly circulate along the first baffle 3, reduce influence of the air-flow to the denoising device, in the present embodiment
In, the first baffle 3, which can be, to be bent by a block baffle so that the arc-shaped setting of the first baffle 3, is also possible to
It is spliced to form the arc by multiple sub- baffles, does not do clearly limit herein, as long as showing the first baffle 3
The cambered surface of arc can reduce the blocking of the air-flow to the air outlet.
In some embodiments of the present application, the air outlet formed between the first baffle 3 and the flabellum is gradually
Become larger, so that air-flow can more smoothly flow out, for details, reference can be made to Fig. 1 and Fig. 2, in the present embodiment, the first gear
The air outlet formed between plate 3 and the flabellum is the institute after the air outlet side of the fan is arranged in the denoising device
What the first baffle 3 and second baffle 4 for stating denoising device were formed after just being shunted the air-flow of the air outlet of fan.
In some embodiments of the present application, the outlet air that is formed between the second baffle 4 and the side wall of the air outlet
Mouth becomes larger, so that air-flow can more smoothly flow out, for details, reference can be made to Fig. 1 and Fig. 2, in the present embodiment, described
The air outlet formed between second baffle 4 and the side wall of the air outlet is that the fan is being arranged in the denoising device
After air outlet side, after the first baffle 3 and second baffle 4 of the denoising device are just shunted the air-flow of the air outlet of fan
It is formed.
In some embodiments of the present application, in the fan running, the intrinsic frequency of the cavity 1 and the fan
Frequency noise between difference be in preset range so that the cavity 1 can preferably reduce fan fortune
Noise when turning, wherein the frequency noise of fan can be to be determined by the revolving speed of fan, the quantity of flabellum.Specifically,
It can be obtained according to following formula:
Wherein, fnFor fan noise frequency；
C is sound propagation velocity (340m/s)；
S is 2 cross-sectional area of through-hole；
V is the volume of cavity 1；
L is the thickness of the first baffle 3, the second baffle 4 and the third baffle 5, wherein the first baffle
3, the second baffle 4 and the thickness of the third baffle 5 can be identical.
In some embodiments of the present application, the ratio of the volume of the cross-sectional area of the through-hole 2 and the cavity 1 can
Frequency noise when being rotated by the fan, the spread speed of the sound and the first baffle 3, the second gear
Plate 4 and the thickness of the third baffle 5 determines, can be with so that when installing the denoising device at the air outlet of fan
Frequency noise when first according to fan rotation, the spread speed of the sound and the first baffle 3, described second
The thickness design of baffle 4 and the third baffle 5 corresponds to well the denoising device of the fan, so that the noise reduction dress of installation
Set can for corresponding fan carry out noise reduction, compared with the prior art on the pedestal of the air outlet side of fan install gear
Aerofoil or the mode that is changed of shape for flabellum, avoid the testing improvement carried out repeatedly, can realize certain
Noise reduction effect cumbersome operation, improve reduce noise efficiency and validity.
In some embodiments of the present application, the first baffle 3, the second baffle 4 and the third baffle 5 are all provided with
In on the bottom surface of the fan box of the fan, and with the plane perpendicular, for details, reference can be made to Fig. 1 and Fig. 2, so that the cavity 1
Can be more stable, air-flow is reduced on influence caused by the cavity 1, and increases the intensity of fan box entirety.
The embodiment of the present application also provides a kind of fans, as depicted in figs. 1 and 2, including box body 6, fan body 7 and above-mentioned
Denoising device, the fan body 7 be set to the box body 6 in, the fan body 7 rotation when, with 6 shapes of the box body
At air inlet and air outlet；The denoising device is set to the air outlet side, to shunt the outlet air by the denoising device
The air-flow of mouth, the noise of the fan is reduced by the cavity 1 and through-hole 2 of the denoising device.Pass through going out in the fan
The denoising device of air port side setting, can shunt the air-flow of the air outlet, and do not interfere with the thermal diffusivity of fan
Can, meanwhile, it is capable to the noise that fan generates in the running be reduced by the cavity 1 formed inside denoising device, so that wind
Fanning the noise generated in the running will not influence the use of user.In embodiment, above-mentioned fan can be applied to such as notes
This computer, etc. in electronic equipments generated when using fan so that also can reduce using the electronic equipment of the fan
Noise, to provide good usage experience for user.
The embodiment of the present application also provides a kind of noise-reduction methods, as shown in figure 3, the method, which is applied to one, has fan
Electronic equipment, the air outlet side of the fan are equipped with denoising device as described above, which comprises
Obtain the frequency noise when fan running；
If the difference between the intrinsic frequency of the cavity 1 of the frequency noise and the denoising device exceeds preset range；
The revolving speed of the fan is adjusted, so that the difference between fan frequency noise adjusted and the intrinsic frequency
Value is in the preset range.
By the denoising device of the air outlet side setting in fan, make it possible to be adjusted the revolving speed of fan,
And then noise caused by realizing reduction fan in the running, the influence that noise generates user is reduced, the use of user is improved
Experience.
Above embodiments are only the exemplary embodiment of the application, are not used in limitation the application, the protection scope of the application
It is defined by the claims.Those skilled in the art can make respectively the application in the essence and protection scope of the application
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as falling within the scope of protection of this application.
Claims (9)
1. a kind of denoising device, which is characterized in that the denoising device is set to the air outlet side of fan, to shunt the outlet air
The air-flow of mouth；
A cavity is formed with inside the denoising device, and in the denoising device on the side of the flabellum side of the fan
It is formed with the through-hole being connected to the cavity.
2. denoising device according to claim 1 characterized by comprising
First baffle is arranged close to the flabellum side；
The first side of second baffle, first side and the first baffle is arranged in angle, to pass through the first baffle
With the second baffle to the airflow diversion of the air outlet；
Third baffle is connect with the second side of the second side of the second baffle and the first baffle, is surrounded described
Cavity, wherein the through-hole is arranged on the first baffle.
3. denoising device according to claim 2, which is characterized in that the arc-shaped setting of first baffle, and to separate
The flabellum curving, the center line of the arc and the center line of the shaft of the fan are arranged in the same direction.
4. denoising device according to claim 2, which is characterized in that formed between the first baffle and the flabellum
Air outlet becomes larger.
5. denoising device according to claim 2, which is characterized in that the side wall of the second baffle and the air outlet it
Between the air outlet that is formed become larger.
6. denoising device according to claim 1, which is characterized in that in the fan running, the cavity it is intrinsic
Difference between frequency and the frequency noise of the fan is in preset range.
7. denoising device according to claim 2, which is characterized in that the appearance of the cross-sectional area of the through-hole and the cavity
Frequency noise when long-pending ratio can be rotated by the fan, the spread speed of the noise and the first baffle,
The second baffle and the thickness of the third baffle determine.
8. denoising device according to claim 2, which is characterized in that the first baffle, the second baffle and described
Third baffle be set to the fan fan box bottom surface on, and with the plane perpendicular.
9. a kind of fan characterized by comprising
Box body；
Fan body is set in the box body, in fan body rotation, is formed air inlet between the box body and is gone out
Air port；
Such as the described in any item denoising devices of claim 1-8, it is set to the air outlet side, to pass through the denoising device point
The air-flow for flowing the air outlet reduces the noise of the fan by the cavity and through-hole of the denoising device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822009296.XU CN209385411U (en) | 2018-11-28 | 2018-11-28 | A kind of denoising device, fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822009296.XU CN209385411U (en) | 2018-11-28 | 2018-11-28 | A kind of denoising device, fan |
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| Publication Number | Publication Date |
|---|---|
| CN209385411U true CN209385411U (en) | 2019-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822009296.XU Active CN209385411U (en) | 2018-11-28 | 2018-11-28 | A kind of denoising device, fan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538539A (en) * | 2018-11-28 | 2019-03-29 | 合肥联宝信息技术有限公司 | A kind of denoising device, fan and noise-reduction method |
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2018
- 2018-11-28 CN CN201822009296.XU patent/CN209385411U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538539A (en) * | 2018-11-28 | 2019-03-29 | 合肥联宝信息技术有限公司 | A kind of denoising device, fan and noise-reduction method |
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