CN207500191U - A kind of low noise air channel structure - Google Patents
A kind of low noise air channel structure Download PDFInfo
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- CN207500191U CN207500191U CN201721532762.1U CN201721532762U CN207500191U CN 207500191 U CN207500191 U CN 207500191U CN 201721532762 U CN201721532762 U CN 201721532762U CN 207500191 U CN207500191 U CN 207500191U
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- wall
- air
- impeller
- low noise
- channel structure
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Abstract
The utility model is related to a kind of low noise air channel structures, including impeller, it is separately positioned on the first wall and the second wall of impeller both sides, first wall includes the first air inlet wall, the first appearance wall and the first outlet air wall along wheel rotation direction successively, and second wall includes the second outlet air wall, the second appearance wall and the second air inlet wall along wheel rotation direction successively；Described first holds the accommodating cavity of the imperfect cylindrical shape of wall and the second appearance wall composition receiving impeller, and the both sides of accommodating cavity are equipped with the first air inlet wall and second and enter the wind the exhaust air flue for extending out arc that the wind inlet channel for extending out arc of wall composition and the first outlet air wall and the second outlet air wall form.The low noise air channel structure of the utility model has the characteristics that low wind noise, air output are big, outlet air is soft and efficient.
Description
Technical field
The utility model is related to flow through air duct system field more particularly to a kind of low noise air channel structures.
Background technology
For tangential impeller, the quality in air duct is very big for air quantity and noise effect, also same for air inlet and the outlet
Sample influences very big.Current through-flow air duct lacks the good guidance to air inlet and the outlet, enters the wind windage and outlet air windage is larger, and
And impeller is being entered the wind out and wind outlet will appear a part of wind direction and flow backwards, and causes the problem of air quantity is smaller, and noise is bigger.
Utility model content
In order to solve the above-mentioned technical problem the utility model, provides a kind of low noise air channel structure, including impeller, respectively set
The first wall and the second wall in impeller both sides are put, first wall includes the first air inlet wall, first along wheel rotation direction successively
Hold wall and the first outlet air wall, second wall include successively along wheel rotation direction the second outlet air wall, second hold wall and second into
Wind wall；Described first holds the accommodating cavity of the imperfect cylindrical shape of wall and the second appearance wall composition receiving impeller, and the both sides of accommodating cavity are set
The wind inlet channel for extending out arc and the first outlet air walls that be made of the first air inlet wall and the second air inlet wall and the second outlet air wall group
Into the exhaust air flue for extending out arc.Radian in pairs is done into air duct, the exhaust air flue of leading portion radian makes air quantity more for outlet air
Greatly, noise, lower, the wind inlet channel of back segment radian avoids air inlet from being obstructed, wind is caused to make an uproar for entering the wind；And it is set along impeller
The first appearance wall and the second appearance wall can effectively reduce the refluence phenomenon of wind, increase air quantity, reduce noise.
Further, the first air inlet wall and first holds wall connection at an acute angle, forms envelope tongue, the envelope tongue and leaf
The axial line distance of the air-out direction of wheel is 10-16mm.
Further, the axial line distance of the air-out direction of the envelope tongue and impeller is 12mm.Envelope wind in air duct at air inlet
Leaf size can cause incoming air area to reduce in 12mm or so best results, less than this numerical value reduces air quantity, more than this numerical value,
It can cause to leak out, air inlet forms the whole air quantity increasing wind of vortex reduction and makes an uproar.
Further, the second outlet air wall and second holds wall connection at an acute angle, forms vortex tongue.
Further, the vortex tongue and the distance of impeller are 3-5mm.The gap of air duct vortex tongue and impeller is in 3-5mm effects
When being preferably less than this numerical value, impeller can generate the noise of superelevation when rotating, and more than this numerical value when causes entire chimney effect
Reduction substantially reduces air quantity.
Further, the low noise air channel structure further includes the outlet grid for being arranged on exhaust air flue, is set on the outlet grid
There is wind-guiding muscle.
Further, the distance of the wind-guiding muscle and impeller is 22-26mm.Outlet grid wind-guiding muscle to impeller distance to wind
Amount and wind direction influence are very big, and by largely testing verification, wind-guiding distance is preferably less than this number in 22-26mm or so effects
During value, wind-guiding muscle forms windage to wind, and air quantity is caused drastically to decline.More than this numerical value, wind-guiding muscle does not have the effect of guiding,
Air-out direction warps.
Further, the impeller is tangential impeller.
Further, for the first appearance wall with the connection of the first outlet air wall to be smoothly connected, described second holds wall and second
Wall is entered the wind to connect into obtuse angle.
Further, impeller into the duration of wind more than 1/4 of the wind inlet channel on impeller and the impeller less than 1/2,
The impeller that described first width for holding wall is 1/4, the described second width for holding wall are less than 1/4 impeller.
The low noise air channel structure of the utility model has the characteristics that low wind noise, air output are big, outlet air is soft and efficient.
Description of the drawings
Fig. 1 is the structure diagram that the utility model low noise air channel structure one is implemented.
Wherein, 1 is outlet grid, and 2 be the first wall, and 21 enter the wind wall for first, and 22 be envelope tongue, and 23 hold wall for first, and 24 are
First outlet air wall, 3 be the second wall, and 31 be the second air inlet wall, and 32 hold wall for second, and 33 be vortex tongue, and 34 be the second outlet air wall, and 4 are
Impeller.
Specific embodiment
The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It is more easy to be readily appreciated by one skilled in the art with feature, so as to make the scope of protection of the utility model apparent define.
Embodiment 1：
Low noise air channel structure in the present embodiment is as shown in Figure 1.Including impeller, it is separately positioned on the first wall of impeller both sides
With the second wall, the first wall includes the first air inlet wall, the first appearance wall and the first outlet air wall, the second wall edge along wheel rotation direction successively
Wheel rotation direction includes the second outlet air wall, the second appearance wall and the second air inlet wall successively；First, which holds wall and second, holds wall composition appearance
Receive impeller imperfect cylindrical shape accommodating cavity, the both sides of accommodating cavity are equipped with extending out for the first air inlet wall and the second air inlet wall composition
The exhaust air flue for extending out arc of the wind inlet channel of arc and the first outlet air wall and the second outlet air wall composition.
Impeller is rotated clockwise during implementation, drive air-flow arcuately first air inlet wall and arc second air inlet wall
Water conservancy diversion direction it is soft enter impeller, the soft air-supply of the first outlet air wall and the second outlet air wall direction of arc arcuately, and
And first appearance wall and the second appearance wall effectively reduce at wind-fall stream wind inlet channel, increase air output, reduce noise at air inlet.
Embodiment 2：
Based on embodiment 1, in the present embodiment, the first air inlet wall and first holds wall connection at an acute angle, forms envelope tongue, the
The connection of one appearance wall and the first outlet air wall is to be smoothly connected；Second outlet air wall and second holds wall connection at an acute angle, forms vortex tongue, the
Two hold wall and the second air inlet wall into obtuse angle connection；And size into the duration of wind of the wind inlet channel on impeller is about impeller radian
1/4-1/2, the width of the first appearance wall is about the 1/4 of impeller radian, and the second width for holding wall is about the 1/8 of impeller radian.
The axial line distance of the air-out direction of envelope tongue and impeller is A, sees Fig. 1, and about 12mm or so is best；Vortex tongue and the distance of impeller are
3-5mm。
In the present embodiment, the design of the shape in air duct and envelope tongue and vortex tongue, can be significantly reduced windage and
The water conservancy diversion of wind increases air output, reduces noise.
Embodiment 3：
Based on above-described embodiment, in the present embodiment, low noise air channel structure further includes the outlet grid for being arranged on exhaust air flue,
The outlet grid is equipped with wind-guiding muscle, and the distance of wind-guiding muscle and impeller is 22-26mm, and impeller is tangential impeller.
The embodiment of the utility model is explained in detail above in conjunction with attached drawing, but the utility model is not limited to
The above embodiment within the knowledge of a person skilled in the art, can also not depart from the utility model
Various changes can be made under the premise of objective.
Claims (10)
1. a kind of low noise air channel structure, which is characterized in that including impeller, be separately positioned on the first walls and second of impeller both sides
Wall, first wall include the first air inlet wall, the first appearance wall and the first outlet air wall, second wall along wheel rotation direction successively
Include the second outlet air wall, the second appearance wall and the second air inlet wall successively along wheel rotation direction；Described first, which holds wall and second, holds wall
Composition accommodates the accommodating cavity of the imperfect cylindrical shape of impeller, and the both sides of accommodating cavity are equipped with the first air inlet wall and the second air inlet wall composition
The wind inlet channel for extending out arc and the first outlet air wall and the second outlet air wall composition the exhaust air flue for extending out arc.
2. low noise air channel structure according to claim 1, which is characterized in that the first air inlet wall and first holds wall Cheng Rui
Angle connects, formation envelope tongue, and the axial line distance of the air-out direction of the envelope tongue and impeller is 10-16mm.
3. low noise air channel structure according to claim 2, which is characterized in that the air-out direction of the envelope tongue and impeller
Axial line distance is 12mm.
4. low noise air channel structure according to claim 1, which is characterized in that the second outlet air wall and second holds wall Cheng Rui
Angle connects, and forms vortex tongue.
5. low noise air channel structure according to claim 4, which is characterized in that the vortex tongue and the distance of impeller are 3-5mm.
6. low noise air channel structure according to claim 1, which is characterized in that the low noise air channel structure, which further includes, to be arranged on
The outlet grid of exhaust air flue, the outlet grid are equipped with wind-guiding muscle.
7. low noise air channel structure according to claim 6, which is characterized in that the distance of the wind-guiding muscle and impeller is 22-
26mm。
8. low noise air channel structure according to claim 1, which is characterized in that the impeller is tangential impeller.
9. low noise air channel structure according to claim 1, which is characterized in that described first holds the company of wall and the first outlet air wall
It is connected in and is smoothly connected, described second holds wall and the second air inlet wall into obtuse angle connection.
10. low noise air channel structure according to claim 1, which is characterized in that air inlet of the wind inlet channel on impeller
Impeller of the width more than 1/4 and the impeller less than 1/2, the impeller that the described first width for holding wall is 1/4, described second holds wall
Width is less than 1/4 impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721532762.1U CN207500191U (en) | 2017-11-16 | 2017-11-16 | A kind of low noise air channel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721532762.1U CN207500191U (en) | 2017-11-16 | 2017-11-16 | A kind of low noise air channel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207500191U true CN207500191U (en) | 2018-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721532762.1U Expired - Fee Related CN207500191U (en) | 2017-11-16 | 2017-11-16 | A kind of low noise air channel structure |
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| Country | Link |
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| CN (1) | CN207500191U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842526A (en) * | 2017-11-16 | 2018-03-27 | 惠州德赛信息科技有限公司 | A kind of low noise air channel structure |
-
2017
- 2017-11-16 CN CN201721532762.1U patent/CN207500191U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842526A (en) * | 2017-11-16 | 2018-03-27 | 惠州德赛信息科技有限公司 | A kind of low noise air channel structure |
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| 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: 20180615 Termination date: 20201116 |