CN208040762U - A kind of impeller, wind turbine and fan - Google Patents
A kind of impeller, wind turbine and fan Download PDFInfo
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- CN208040762U CN208040762U CN201820266940.9U CN201820266940U CN208040762U CN 208040762 U CN208040762 U CN 208040762U CN 201820266940 U CN201820266940 U CN 201820266940U CN 208040762 U CN208040762 U CN 208040762U
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- blade
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- impeller
- wind turbine
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Abstract
The utility model is related to wind turbine technical fields, and in particular to a kind of impeller, wind turbine and fan, impeller, including：Fixed seat, suitable for rotating around it axis rotation；Several blades are fixedly installed on around the rotation axis in the fixed seat, and at least there are two the spacing between the blade blade adjacent thereto in the circumferential direction of the rotation axis to differ.Impeller, wind turbine and fan provided by the utility model, advantageously reduce wind turbine running noise.
Description
Technical field
The utility model is related to wind turbine technical fields, and in particular to a kind of impeller, wind turbine and fan.
Background technology
The impeller of wind turbine usually has larger noise in rotation process, particularly with snails such as cross flow fan, centrifugal blowers
For shell wind turbine, in operation process, since the spacing between volute tongue and impeller outer edge is too small, air-flow flows through volute tongue and impeller outer
When the gap of edge, howling just will produce；If spacing is big, although air-flow can make moderate progress to the impact condition of volute tongue,
Some air-flow is understood inside spiral case as impeller ceaselessly recycles, this not only consumes power, but also reduces flow, simultaneously also
It can be hit with the air-flow generating period of impeller outlet, generate low-frequency oscillation or sympathetic response, cause noise to increase, therefore existing skill
The scheme for improving noise in art focuses primarily upon in the optimization to spiral case and volute tongue, but is limited by the structure of spiral case and volute tongue, excellent
The limitation of change is very big, and the effect is unsatisfactory for noise reduction.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome wind turbine running noise is big in the prior art to lack
It falls into, to provide a kind of impeller advantageously reducing wind turbine running noise.
Further provide for a kind of wind turbine with above-mentioned impeller.
Further provide for a kind of fan with above-mentioned wind turbine.
The technical solution adopted in the utility model is as follows：
A kind of impeller, including：Fixed seat, suitable for rotating around it axis rotation；Several blades are set around rotation axis fixation
Be placed in the fixed seat, at least there are two between the blade blade adjacent thereto along the circumferential direction side of the rotation axis
Upward spacing differs.
At least there are two the line of the same point on the blade blade adjacent thereto to rotation axis institutes into folder
The angle at angle differs.
The angular range of line angle of the same point to the rotation axis on any adjacent two blade is 8-
12°。
The quantity of the blade is 32-40.
The quantity of the blade is odd number.
Along the axis direction of the rotation axis, the blade is in strip extending in a straight line, and the blade turns along described
The section in the radial direction of moving axis is arc-shaped.
Along the axis direction of the rotation axis, the blade is in strip extending in a straight line；The extending direction of the blade
It is arranged in angle with the axis of the rotation axis.
The angular range of the extending direction of the blade and the axis angle of the rotation axis is 3-5 °.
The fixed seat includes the mounting plate of at least two layers of coaxial spaced setting, and the blade is connected to described in adjacent two layers
Between mounting plate.
The fixed seat further includes the motor shaft sleeve being respectively arranged on two mounting plates at axial both ends and positioning
Axis.
A kind of wind turbine, including：Spiral case, and the above-mentioned impeller in the spiral case.
The wind turbine is cross flow fan.
A kind of fan, including above-mentioned wind turbine.
Technical solutions of the utility model have the following advantages that：
1. impeller provided by the utility model, including fixed seat and several blades, fixed seat is suitable for rotating around it axis rotation,
Several blades are fixedly installed on around rotation axis in fixed seat, and at least there are two between blade blade adjacent thereto in several blades
Spacing differ, spacing distance of the spacing between adjacent blades in the circumferential direction of rotation axis, several blades around turn
Moving axis Unequal distance is arranged so that the blade of Unequal distance arrangement in impact strength and phase in rotation process there are inconsistent,
There is interfering, cancelling out each other to a certain extent in the harmonic wave between the blade of Unequal distance arrangement, can keep air quantity not
In the case of change, the noise of wind wheel rotation is substantially reduced, promotes acoustical quality when wind wheel uses；And work as such wind wheel application
When spiral case wind turbine, since to the impact strength of volute tongue, there are bright with phase when not equidistant two adjacent blades are by volute tongue
Significant difference is different so that discrete features are presented in spectrum signature when each not equidistant blade rotation, to reduce turning for blade
Dynamic noise.
2. impeller provided by the utility model, at least there are two the same points on blade blade adjacent thereto in several blades
Angle to the line angle of rotation axis differ namely adjacent two blade on same point to rotation axis line intersect
The central angle of the point-to-point transmission is formed, the line of same point to rotation axis on several blade blades adjacent thereto is formed by the center of circle
Between angle, at least there are two central angle is unequal, when each blade shape is identical, when setting angle is consistent, it can pass through and control phase
The increase and decrease of the number of degrees of central angle of adjacent two blades between the root of rotation axis, designs the leaf of blade Unequal distance arrangement
Wheel.
3. impeller provided by the utility model, the angle of the line angle of same point on adjacent two blade to rotation axis
Ranging from 8-12 ° of degree, this Leaf positional distribution mode is more reasonable, is conducive to further decreasing for wheel rotation noise.
4. the quantity of impeller provided by the utility model, blade is odd number, it is more advantageous to the further of wheel rotation noise
It reduces.
5. impeller provided by the utility model, along the axis direction of rotation axis, blade is in strip extending in a straight line, and leaf
Piece is arc-shaped along the section in the radial direction of rotation axis, i.e., blade is in the vertical bar shape that cross section is arc, in the rotation of impeller
In the process, the outer long side of blade rotates the surfaces of revolution to form impeller using rotation axis as axis.
6. impeller provided by the utility model, the extending direction of blade and the axis of rotation axis are arranged in angle so that if
Cured leaf piece can be obtained by a relatively large margin by the frequency of volute tongue and its with discrete noise at the second harmonic of volute tongue impact generation
It reduces.
7. wind turbine provided by the utility model, including spiral case and the above-mentioned impeller in spiral case, on the one hand, several blades
It arranges around rotation axis Unequal distance so that the blade of Unequal distance arrangement exists not in the impact strength and phase in rotation process
Unanimously, there is interfering, cancelling out each other to a certain extent in the harmonic wave between the blade of Unequal distance arrangement, can keep wind
Measure it is constant in the case of, substantially reduce wind wheel rotation noise, promoted wind wheel use when acoustical quality；On the other hand, due to
To the impact strength of volute tongue, there are notable differences with phase when not equidistant two adjacent blades are by volute tongue so that it is each not
Discrete features are presented in spectrum signature when equidistant blade rotation, to reduce the rotation noise of blade.
8. fan provided by the utility model, including above-mentioned wind turbine, fan operation noise is small, and user experience is more preferably.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is the stereogram of the wind wheel provided in the embodiments of the present invention one；
Fig. 2 is the structural schematic diagram of wind wheel shown in FIG. 1；
Fig. 3 is wind wheel radial cross-section shown in FIG. 1.
Reference sign：
1- fixed seats；11- mounting plates；12- motor shaft sleeves；13- locating shafts；2- blades；
α represents the same point on adjacent two blade to the line angle of rotation axis；
β represents the extending direction of blade and the axis angle of rotation axis.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
In the description of the present invention, it should be noted that the orientation of the instructions such as term "center", "inner", "outside" or
Position relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description,
It does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and operation, because
This should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in utility model.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
Embodiment one
As shown in Figs. 1-3, impeller provided in this embodiment, including fixed seat 1 and several blades 2, fixed seat 1 are suitable for around it
Rotation axis rotates, and several blades 2 are fixedly installed on around rotation axis in fixed seat 1, and at least there are two blades 2 in several blades 2
Spacing between blade 2 adjacent thereto differs, interval distance of the spacing between adjacent blades 2 in the circumferential direction of rotation axis
From several blades 2 are arranged around rotation axis Unequal distance so that impact strength of the blade 2 of Unequal distance arrangement in rotation process
With there are inconsistent, there is interfering, mutually supporting to a certain extent in the harmonic wave between the blade 2 of Unequal distance arrangement in phase
Disappear, the noise of wind wheel rotation can be substantially reduced in the case where keeping air quantity constant, promotes sound quality when wind wheel uses and imitate
Fruit；And when such wind wheel be applied to spiral case wind turbine when, due to when not equidistant two adjacent blades 2 are by volute tongue to volute tongue
Impact strength there are notable differences with phase so that spectrum signature when each not equidistant blade 2 rotates presents discrete
Feature, to reduce the rotation noise of blade 2.
Along the axis direction of rotation axis, blade 2 is in strip extending in a straight line, and blade 2 is along the radial direction of rotation axis
On section it is arc-shaped, i.e., blade 2 in cross section be arc vertical bar shape, in the rotation process of impeller, the outside of blade 2 is grown
While the surfaces of revolution to form impeller is rotated as axis using rotation axis.
Fixed seat 1 includes the mounting plate 11 of five coaxial spaceds setting, wherein the mounting plate 11 positioned at both ends is respectively to hold
Lid, intermediate three mounting plates 11 are annular partition, and blade 2 is connected between two neighboring mounting plate 11, on 2 length direction of blade
Both ends be connected on mounting plate 11, and the direction of blade 2 is consistent；It is respectively arranged on two end caps and coordinates suitable for motor
Motor shaft sleeve 12, and for the fixed locating shaft of fixing body 13.
Rotation axis refers to the pivot center that motor shaft sleeve 12 is constituted with locating shaft 13.
At least there are two the line of the same point on 2 blade 2 adjacent thereto of blade to rotation axis institutes into folder in several blades 2
The angle at angle differs namely the line of same point to rotation axis on adjacent two blade 2 is crossed to form the center of circle of the point-to-point transmission
Angle, between the line of same point to rotation axis on 2 blade 2 adjacent thereto of several blades is formed by central angle, at least two
A central angle is unequal, the increasing of the number of degrees of central angle that can be by the two neighboring blade 2 of control between the root of rotation axis
Subtract, designs the impeller of 2 Unequal distance of blade arrangement.
As shown in figure 3, α represents the same point on adjacent two blade 2 to the line angle of rotation axis, arbitrary neighborhood two
Same point on blade 2 is to ranging from 8-12 ° of the angular dimension of the line angle of rotation axis, i.e. 8 °≤α≤12 °, wherein α
Value include 8,8.6,9.4,9.8,10.6,11.2,11.3,11.8,12 etc., along the rotation direction of impeller, α values irregularly become
Change, also includes the equal situations of two neighboring α.
As shown in Fig. 2, β represents the extending direction of blade 2 and the axis angle of rotation axis, the extending direction of blade 2
It is arranged in angle with the axis of rotation axis so that several blades 2 pass through the frequency of volute tongue and its second order with volute tongue impact generation
Discrete noise available reduction by a relatively large margin at harmonic wave.Wherein, β=4 °.
2 quantity of blade between each two mounting plate 11,2 set-up mode of blade is consistent, between two neighboring mounting plate 11
2 quantity of blade be 37.
The present embodiment also provides a kind of wind turbine, including spiral case, and the above-mentioned impeller in spiral case.
The present embodiment also provides a kind of fan, including above-mentioned wind turbine.
As the alternative embodiments of embodiment one, fixed seat include two, three, four, six or more
Mounting plate.
As the alternative embodiments of embodiment one, the value of α includes any point value in 8-12.
As the alternative embodiments of embodiment one, α values irregularly change, and any two α values are unequal.
As the alternative embodiments of embodiment one, along the rotation direction of impeller, α values change in periodic regular.
As the alternative embodiments of embodiment one, β=3 °.
As the alternative embodiments of embodiment one, β=3.5 °.
As the alternative embodiments of embodiment one, β=3.8 °.
As the alternative embodiments of embodiment one, β=4.3 °.
As the alternative embodiments of embodiment one, β=4.7 °.
As the alternative embodiments of embodiment one, β=5 °.
As the alternative embodiments of embodiment one, the blade quantity between two neighboring mounting plate is 35.
As the alternative embodiments of embodiment one, the blade quantity between two neighboring mounting plate is 39.
As the alternative embodiments of embodiment one, the blade quantity between two neighboring mounting plate is 32.
As the alternative embodiments of embodiment one, the blade quantity between two neighboring mounting plate is 33.
As the alternative embodiments of embodiment one, the blade quantity between two neighboring mounting plate is 40.
As the alternative embodiments of embodiment one, the extending direction of blade and the axis of rotation axis are arranged in parallel.
As the alternative embodiments of embodiment one, rectangular in cross-section in the radial direction of the blade along rotation axis.
As the alternative embodiments of embodiment one, wind turbine is centrifugal blower.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
Among the protection domain that variation is created still in the utility model.
Claims (13)
1. a kind of impeller, which is characterized in that including：
Fixed seat (1), suitable for rotating around it axis rotation；
Several blades (2), are fixedly installed on around the rotation axis in the fixed seat (1), and at least there are two the blades (2)
Spacing between the blade (2) adjacent thereto in the circumferential direction of the rotation axis differs.
2. impeller according to claim 1, which is characterized in that at least there are two the blade (2) leaves adjacent thereto
The angle of same point on piece (2) to the line angle of the rotation axis differs.
3. impeller according to claim 2, which is characterized in that same point on any adjacent two blade (2) to institute
The angular range for stating the line angle of rotation axis is 8-12 °.
4. impeller according to claim 2, which is characterized in that the quantity of the blade (2) is 32-40.
5. impeller according to claim 2, which is characterized in that the quantity of the blade (2) is odd number.
6. according to claim 1-5 any one of them impellers, which is characterized in that described along the axis direction of the rotation axis
Blade (2) is in strip extending in a straight line, and the blade (2) is arc-shaped along the section in the radial direction of the rotation axis.
7. according to claim 1-5 any one of them impellers, which is characterized in that described along the axis direction of the rotation axis
Blade (2) is in strip extending in a straight line；The extending direction of the blade (2) is arranged with the axis of the rotation axis in angle.
8. impeller according to claim 7, which is characterized in that the extending direction of the blade (2) and the rotation axis
The angular range of axis angle is 3-5 °.
9. impeller according to any one of claims 1-5, which is characterized in that the fixed seat (1) includes at least two layers
The mounting plate (11) of coaxial spaced setting, the blade (2) are connected between mounting plate described in adjacent two layers (11).
10. impeller according to claim 9, which is characterized in that the fixed seat (1) further includes being respectively arranged at axial two
Motor shaft sleeve (12) on two mounting plates (11) at end and locating shaft (13).
11. a kind of wind turbine, which is characterized in that including：
Spiral case, and in the spiral case such as claim 1-10 any one of them impellers.
12. wind turbine according to claim 11, which is characterized in that the wind turbine is cross flow fan.
13. a kind of fan, which is characterized in that including the wind turbine described in claim 11 or 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820266940.9U CN208040762U (en) | 2018-02-24 | 2018-02-24 | A kind of impeller, wind turbine and fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820266940.9U CN208040762U (en) | 2018-02-24 | 2018-02-24 | A kind of impeller, wind turbine and fan |
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| Publication Number | Publication Date |
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| CN208040762U true CN208040762U (en) | 2018-11-02 |
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| CN201820266940.9U Active CN208040762U (en) | 2018-02-24 | 2018-02-24 | A kind of impeller, wind turbine and fan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412154A (en) * | 2020-03-31 | 2020-07-14 | 佛山市云米电器科技有限公司 | Air supply section distribution method, system and computer readable storage medium |
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2018
- 2018-02-24 CN CN201820266940.9U patent/CN208040762U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412154A (en) * | 2020-03-31 | 2020-07-14 | 佛山市云米电器科技有限公司 | Air supply section distribution method, system and computer readable storage medium |
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