CN207246123U - Diffuser - Google Patents
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- CN207246123U CN207246123U CN201721278890.8U CN201721278890U CN207246123U CN 207246123 U CN207246123 U CN 207246123U CN 201721278890 U CN201721278890 U CN 201721278890U CN 207246123 U CN207246123 U CN 207246123U
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Abstract
The utility model discloses a kind of diffuser, diffuser includes wheel hub, a grade blade and two grade blades, and a grade blade is located on wheel hub, and a grade blade gradually extends in the circumferential direction of wheel hub towards the axial direction of wheel hub.Two grade blades are located on wheel hub, and two grade blades gradually extend in the circumferential direction of wheel hub towards the radial direction of wheel hub.One in one grade blade and two grade blades is located on the outer circumferential surface of wheel hub, another in a grade blade and two grade blades is located on the end face of wheel hub.According to the diffuser of the utility model embodiment, since wheel hub is equipped with two grade blades, the kinetic energy for flowing through diffuser air-flow can be converted into static energy to greatest extent by one grade blade, the air-flow for flowing through diffuser can be oriented to the axial direction of diffuser by two grade blades, radiate to motor, therefore, the diffuser of the utility model embodiment can play diffusion action, moreover it is possible to play cooling effect to driving device.
Description
Technical field
It the utility model is related to power transmission technical field, more particularly to a kind of wind turbine or pump diffuser.
Background technology
Wind turbine is mainly made of movable vane wheel and guide vane wheel, and the design level of the two directly determines the working performance of wind turbine.
Usual impeller convection current is moved 50% of work done or more and is entered guide vane wheel in the form of kinetic energy, and the effect of guide vane wheel is maximum limit
The kinetic energy of air-flow is changed into static energy by degree ground, and controls the exit flow of air-flow to flow.Company of the guide vane wheel to blower motor
Connecing or radiating has critically important influence.Existing diffuser only has level-one diffusion mostly, can be preferably by the kinetic energy of air-flow
Static energy is changed into, but does not consider the heat dissipation problem of motor center, motor temperature rise is high, and stator and rotor loss are big.
Utility model content
The utility model is intended at least solve one of technical problem existing in the prior art.For this reason, the utility model carries
Go out a kind of diffuser, a part of air-flow can be introduced pivot, can preferably be radiated to motor by the diffuser.
According to the diffuser of the utility model embodiment, including：Wheel hub；One grade blade, a grade blade are located at described
On wheel hub, a grade blade gradually extends in the circumferential direction of the wheel hub towards the axial direction of the wheel hub；Two level leaf
Piece, two grade blade are located on the wheel hub, and two grade blade is in the circumferential direction of the wheel hub towards the wheel hub
Radial direction gradually extends；Wherein, an outer circumferential surface for being located at the wheel hub in a grade blade and two grade blade
On, another in a grade blade and two grade blade is located on the end face of the wheel hub.
According to the diffuser of the utility model embodiment, since wheel hub is equipped with two grade blades, a grade blade will can flow
Kinetic energy through diffuser air-flow is converted into static energy to greatest extent, and the air-flow for flowing through diffuser can be oriented to by two grade blades to be expanded
The axial direction of depressor, radiates motor, and therefore, the diffuser of the utility model embodiment can play diffusion action,
Cooling effect can also be played to driving device.
In certain embodiments, two grade blade is multiple, axis of multiple two level blade rings around the wheel hub
It is spaced apart and sets, two grade blades described in a portion is linear leaf, and two grade blades described in another part are short blade, per adjacent
Between two linear leafs between be separated with least one short blade.
In certain embodiments, the quantity of a grade blade is 7-17.
Specifically, the quantity of the linear leaf of two grade blade is 3-5, and the quantity of the short blade is 4-12.
Specifically, a grade blade and two grade blade, which correspond, is set, corresponding two grade blade with
Angle between one grade blade is γ, and γ meets relational expression：60°≤γ≤130°.
In certain embodiments, the aerofoil profile chord length of a grade blade is a, and a meets relational expression：8mm≤a≤15mm.
In certain embodiments, the outside diameter of the diffuser is D, and D meets relational expression：20mm≤a≤80mm.
In certain embodiments, the wheel hub is equipped with multiple mounting posts for being used to install the diffuser.
In certain embodiments, the blade angle of a grade blade is β, and β meets relational expression：20°≤β≤45°.
In certain embodiments, a grade blade is corresponded with two grade blade and set, and two grade blade is set
On the end face of the wheel hub, a grade blade is extended on two grade blade by the outer circumferential surface of the wheel hub, and described
Rounding off connects between one grade blade and two grade blade.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly by from following description
In become obvious, or recognized by the practice of the utility model.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination accompanying drawings below to embodiment
Become obvious and be readily appreciated that, wherein：
Diffuser 1,
Wheel hub 10, a grade blade 20, two grade blades 30, linear leaf 310, short blade 320, mounting post 40.
Reference numeral：
Fig. 1 is the overall structure stereogram of the diffuser of the utility model embodiment.
Fig. 2 is the stereogram of the other direction of the diffuser of the utility model embodiment.
Fig. 3 is the partial view of a grade blade of the diffuser shown in Fig. 1.
Fig. 4 is the front view of diffuser shown in Fig. 1.
Fig. 5 is the rearview of diffuser shown in Fig. 1.
Embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and it is not intended that to the utility model
Limitation.
In the description of the utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " are based on orientation shown in the drawings
Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limit to the utility model
System.In addition, define " first ", one or more this feature can be expressed or be implicitly included to the feature of " second ".
In the description of the utility model, unless otherwise indicated, " multiple " are meant that two or more.
Concrete structure below with reference to Fig. 1-Fig. 5 descriptions according to the diffuser 1 of the utility model embodiment.
As shown in Figure 1, wheel hub 10, a grade blade 20 and two level leaf are included according to the diffuser 1 of the utility model embodiment
Piece 30.One grade blade 20 is located on wheel hub 10, and a grade blade 20 is in the circumferential direction of wheel hub 10 towards the axial direction of wheel hub 10
Gradually extension.Two grade blades 30 are located on wheel hub 10, and two grade blades 30 are in the circumferential direction of wheel hub 10 towards the radial direction of wheel hub 10
Direction gradually extends.One in one grade blade 20 and two grade blades 30 is located on the outer circumferential surface of wheel hub 10,20 He of a grade blade
Another in two grade blades 30 is located on the end face of wheel hub 10.
It is located at a grade blade 20 on the outer circumferential surface of wheel hub 10, two grade blades 30 are located on the end face of wheel hub 10 (i.e. Fig. 1 institutes
The diffuser 1 shown) exemplified by the diffuser 1 of the utility model embodiment is analyzed.It is understood that a grade blade 20 faces
The side of 10 axis centre of nearly wheel hub is inlet side, and the side for closing on 10 lateral surface of wheel hub is air side.Due to a grade blade 20
The outer circumferential surface of wheel hub 10 is located at, and towards axial direction (the B1 side shown in Fig. 1 of wheel hub 10 in circumferential direction (A1 directions shown in Fig. 1)
To) gradually extension, the runner that adjacent two grade blades 20 limit, the area of section of runner is by inlet side towards air side
Gradually increase, air-flow is under the water conservancy diversion and restriction effect of a grade blade 20, and the flowing velocity of air-flow is gradually reduced so that air-flow
Kinetic energy is converted into static energy.In conclusion the main function of a grade blade 20 is that will flow through kinetic energy contained by the air-flow of diffuser 1
Static energy is changed into greatest extent.Two grade blades 30 are located on the end face of wheel hub 10, and two grade blades 30 are in the week of wheel hub 10
Extend to (A2 directions shown in Fig. 1) side upwardly toward radial direction (C1 directions shown in Fig. 1) direction of wheel hub 10, therefore, when air-flow stream
During through diffuser 1, under the guiding function of two grade blades 30, a part of air-flow is flowed along 10 rotation axis of wheel hub, this part gas
Stream can enter the inside of driving device, improve heat dissipation effect, the especially heat dissipation effect to motor.
According to the diffuser 1 of the utility model embodiment, since wheel hub 10 is equipped with two grade blades, a grade blade 20 can be with
The kinetic energy for flowing through 1 air-flow of diffuser is converted into static energy to greatest extent, two grade blades 30 can will flow through the gas of diffuser 1
Conductance radiates motor, therefore, the diffuser 1 of the utility model embodiment can play to the axial direction of diffuser 1
Diffusion action, moreover it is possible to which cooling effect is played to driving device.
Additional description is needed, in some embodiments of the utility model, a grade blade 20 is located at the outer of wheel hub 10
On side face, two grade blades 30 are located on the end face of wheel hub 10.In such cases, a grade blade 20 is act as the kinetic energy of air-flow
Static energy, the axial direction pair for acting as a part of air-flow being oriented to diffuser 1 of two grade blades 30 are converted into greatest extent
Motor radiates.And in other embodiments of the utility model, a grade blade 20 is located on the end face of wheel hub 10, two level
Blade 30 is located on the outer circumferential surface of wheel hub 10.In such cases, a grade blade 20 is act as the kinetic energy of air-flow to greatest extent
Be converted into static energy, the axial direction for acting as a part of air-flow being oriented to diffuser 1 of two grade blades 30 carries out motor
Heat dissipation.In conclusion in the narration of this specification, a grade blade 20 and two grade blades 30 are intended merely to conveniently describe, not
It is the concrete restriction to the structure of blade.
In certain embodiments, as Figure 1 and Figure 4, two grade blades 30 are multiple that multiple two grade blades 30 are around wheel hub
10 axis is spaced apart setting, and two grade blade 30 of a portion is linear leaf 310, and two grade blade 30 of another part is short blade
320, it is separated with least one short blade 320 between often equal between two neighboring linear leaf 310.According to described previously, two grade blades 30
It can play a part of air-flow being oriented to along 1 axial direction of diffuser and flow, improve the heat-sinking capability to driving device.Therefore it is logical
Cross two grade blades 30 for setting length different, it is possible to achieve to heat sinking function of the different driving devices under different operating modes.
Certainly, the length dimension of multiple two grade blades 30 can be with other forms.For example, in some embodiments of the utility model,
The length of multiple two grade blades 30 is identical.In another example in other embodiments of the utility model, multiple two grade blades 30
Length is different.
In certain embodiments, a grade blade 20 is multiple that multiple grade blades 20 are spaced apart around the axis of wheel hub 10
Set, one grade blade 20 of a portion is linear leaf, and one grade blade 20 of another part is short blade.According to described previously, one
The main function of grade blade 20 is that the kinetic energy of air-flow is changed into static energy.Therefore by setting the different grade blade of length
20, thus it is possible to vary the runner length that a two neighboring grade blade 20 limits, so as to meet different diffusion needs.Certainly, it is more
The length dimension of an a grade blade 20 can be with other forms.For example, in some embodiments of the utility model, multiple level-ones
The length of blade 20 is identical.In another example in other embodiments of the utility model, the length of multiple grade blades 20 is respectively not
It is identical.
In certain embodiments, the quantity of a grade blade 20 is 7-17.It is understood that the quantity of a grade blade 20
Directly influence the diffusion effect of diffuser 1.It is found through experiments that, when the quantity of a grade blade 20 is 7-17, diffuser 1
Diffusion effect is preferable.Certainly, the quantity of a grade blade 20 can be adjusted according to the use environment of diffuser 1 and is not limited to
State scope.
Advantageously, the quantity of a grade blade 20 is 9-13.
In certain embodiments, the quantity of two grade blades 30 is identical with the quantity of a grade blade 20, and the number of linear leaf 310
Measure as 3-5, the quantity of short blade 320 is 4-12.It is understood that the quantity of two grade blades 30 directly affects driving dress
The heat dissipation effect put.It is found through experiments that, the quantity of two grade blades 30 is identical with the quantity of a grade blade 20, and linear leaf 310
Quantity be 3-5, when the quantity of short blade 320 is 4-12, the air-flow that two grade blades 30 distribute is more, can be to driving
Device is preferably radiated.Certainly, the quantity of two grade blades 30 can adjust not according to the use environment of diffuser 1
It is limited to above range.
In certain embodiments, it is corresponding as shown in Figure 1, a grade blade 20 and two grade blades 30 are corresponded and set
Angle between two grade blades 30 and a grade blade 20 is γ, and γ meets relational expression：60°≤γ≤130°.Such design skill
It can guarantee that the diffusion action of a grade blade 20, and can guarantee that the cooling effect of two grade blades 30.Certainly, a grade blade 20 and level-one
Angle γ between blade 20 is not limited to above range, and user can adjust according to actual condition.Need additional description
, in some embodiments of the utility model, for some specific demands, a grade blade 20 and two grade blades 30 not phase
Even, and the number of a grade blade 20 and two grade blades 30 and differ.Therefore, in the embodiment of the utility model, level-one leaf
Piece 20 can be connected with two grade blades 30 can also the company of being not desired to.
In certain embodiments, as shown in figure 3, the aerofoil profile chord length of a grade blade 20 is a, a meets relational expression：8mm≤a≤
15mm.It should be noted that the runner length limited between two adjacent grade blades 20 has the diffusion effect of diffuser 1
Directly affect, and the length of runner is related with the aerofoil profile chord length of a grade blade 20.Therefore, the aerofoil profile chord length pair of a grade blade 20
The diffusion effect of diffuser 1 has a direct impact.Proved by experiment, when the aerofoil profile chord length a of the first blade meets relational expression：8mm≤a
During≤15mm, the diffusion effect of diffuser 1 is preferable.Certainly, the aerofoil profile chord length of a grade blade 20 is not limited to above range, user
Accommodation can be made according to actual condition.
In certain embodiments, the outside diameter of diffuser 1 is D, and D meets relational expression：20mm≤a≤80mm.Need what is illustrated
It is that above range is only that 1 outside diameter of diffuser is illustrated, and is not specifically to limit.In fact, user can be according to reality
Operating mode makes any accommodation to the outside diameter of diffuser 1.
In certain embodiments, wheel hub 10 is equipped with multiple mounting posts 40 for being used to install diffuser 1.
Advantageously, the number of mounting post 40 is more than or equal to three.The mounting stability of diffuser 1 can be so improved, is carried
The high functional reliability of diffuser 1.
In certain embodiments, as shown in figure 3, the blade angle of a grade blade 20 is β, β meets relational expression：20°≤β
≤45°.It should be noted that the blade angle of a grade blade 20 has a direct impact the diffusion effect of diffuser 1.There is experiment
Prove, when the blade angle of a grade blade 20 meets relational expression for β：During 20 °≤β≤45 °, the diffusion effect of diffuser 1 compared with
It is good.Certainly, the blade angle of a grade blade 20 is not limited to above range, and user can make adaptability according to actual condition
Adjustment.
In certain embodiments, as shown in Figure 1, a grade blade 20 and two grade blades 30 are corresponded and set, two grade blades
30 are located on the end face of wheel hub 10, and a grade blade 20 is extended on two grade blades 30 by the outer circumferential surface of wheel hub 10, and a grade blade
20 and two rounding off between grade blade 30 connect.Such skill in design ensures the diffusion action of a grade blade 20, and can protect
Demonstrate,prove the cooling effect of two grade blades 30.
In certain embodiments, diffuser 1 can be used on the wind turbine of the household electrical appliances such as dust catcher, smoke exhaust ventilator above.
The diffuser 1 of one specific embodiment of the utility model is described below with reference to Fig. 1-Fig. 5.
As shown in Figure 1, the diffuser 1 of the utility model embodiment includes wheel hub 10, nine grade blades, 20, nine two levels
Blade 30 and four mounting posts 40.One grade blade 20 is located on the outer circumferential surface of wheel hub 10, and the court in the circumferential direction of wheel hub 10
The axial direction of wheel hub 10 gradually extends.Two grade blades 30 are located on the end face of wheel hub 10, and in the circumferential direction of wheel hub 10
Radial direction towards wheel hub 10 extends.One grade blade 20 and two grade blades 30, which correspond, to be set, and a grade blade 20 has wheel hub 10
Outer circumferential surface extend to two grade blades 30, and rounding off connects between a grade blade 20 and two level piece.Four mounting posts 40 are equal
Even is located on the end face of wheel hub 10.
As Figure 1-Figure 4, it is linear leaf 310 to have three blades in nine two grade blades 30, and six blades are short blade
320, adjacent two linear leafs 310 are equipped with two short blades 320.
As shown in figure 5, the outside diameter of diffuser 1 is D, D meets relational expression：20mm≤a≤80mm.
As shown in figure 3, the blade angle of the first blade is β, β meets relational expression：20 °≤β≤45 °, aerofoil profile chord length is
A, a meet relational expression：8mm≤a≤15mm.
The wheel hub 10 of the diffuser 1 of the present embodiment is equipped with two grade blades, and a grade blade 20 can will flow through 1 gas of diffuser
The kinetic energy of stream is converted into static energy to greatest extent, and the air-flow for flowing through diffuser 1 can be oriented to diffuser 1 by two grade blades 30
Axial direction, radiates motor, and therefore, the diffuser 1 of the present embodiment can play diffusion action, moreover it is possible to driving device
Play cooling effect.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
State and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
Combined in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that the embodiment of the utility model, it will be understood by those skilled in the art that：
These embodiments can be carried out with a variety of changes, modification in the case where not departing from the principle and objective of the utility model, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (10)
- A kind of 1. diffuser, it is characterised in that including：Wheel hub；One grade blade, a grade blade are located on the wheel hub, grade blade court in the circumferential direction of the wheel hub The axial direction of the wheel hub gradually extends；Two grade blades, two grade blade are located on the wheel hub, two grade blade court in the circumferential direction of the wheel hub The radial direction of the wheel hub gradually extends；Wherein, one in a grade blade and two grade blade is located on the outer circumferential surface of the wheel hub, the level-one leaf Another in piece and two grade blade is located on the end face of the wheel hub.
- 2. diffuser according to claim 1, it is characterised in that two grade blade is multiple, multiple two level leaves Piece is spaced apart setting around the axis of the wheel hub, and two grade blades described in a portion are linear leaf, two described in another part Grade blade is short blade, and at least one short blade is separated between equal between every two neighboring linear leaf.
- 3. diffuser according to claim 1, it is characterised in that the quantity of a grade blade is 7-17.
- 4. diffuser according to claim 2, it is characterised in that the quantity of the linear leaf of two grade blade is 3-5, The quantity of the short blade is 4-12.
- 5. diffuser according to claim 1 a, it is characterised in that grade blade is corresponded with two grade blade Set, the angle between corresponding two grade blade and a grade blade is γ, and γ meets relational expression：60°≤γ≤ 130°。
- 6. diffuser according to claim 1, it is characterised in that the aerofoil profile chord length of a grade blade is a, and a meets to close It is formula：8mm≤a≤15mm.
- 7. diffuser according to claim 1, it is characterised in that the outside diameter of the diffuser is D, and D meets relational expression： 20mm≤a≤80mm。
- 8. diffuser according to claim 1, it is characterised in that the wheel hub is equipped with multiple for installing the diffusion The mounting post of device.
- 9. diffuser according to claim 1, it is characterised in that the blade angle of a grade blade is β, and β meets Relational expression：20°≤β≤45°.
- 10. diffuser according to claim 1 a, it is characterised in that grade blade and two grade blade are right one by one It should set, two grade blade is located on the end face of the wheel hub, and a grade blade is extended to by the outer circumferential surface of the wheel hub On two grade blade, and rounding off connects between a grade blade and two grade blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721278890.8U CN207246123U (en) | 2017-09-29 | 2017-09-29 | Diffuser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721278890.8U CN207246123U (en) | 2017-09-29 | 2017-09-29 | Diffuser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207246123U true CN207246123U (en) | 2018-04-17 |
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ID=61889607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721278890.8U Active CN207246123U (en) | 2017-09-29 | 2017-09-29 | Diffuser |
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| Country | Link |
|---|---|
| CN (1) | CN207246123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687447A (en) * | 2017-09-29 | 2018-02-13 | 广东威灵电机制造有限公司 | Diffuser |
-
2017
- 2017-09-29 CN CN201721278890.8U patent/CN207246123U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687447A (en) * | 2017-09-29 | 2018-02-13 | 广东威灵电机制造有限公司 | Diffuser |
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