CN207777261U - Blade assembly of mixed flow wind wheel, mixed flow wind wheel and device with mixed flow wind wheel - Google Patents
Blade assembly of mixed flow wind wheel, mixed flow wind wheel and device with mixed flow wind wheel Download PDFInfo
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- CN207777261U CN207777261U CN201721404673.9U CN201721404673U CN207777261U CN 207777261 U CN207777261 U CN 207777261U CN 201721404673 U CN201721404673 U CN 201721404673U CN 207777261 U CN207777261 U CN 207777261U
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- flow wind
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- 238000009434 installation Methods 0.000 claims description 18
- 230000003068 static effect Effects 0.000 abstract description 8
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model provides a blade subassembly, mixed flow wind wheel of mixed flow wind wheel and have device of mixed flow wind wheel. The blade subassembly of mixed flow wind wheel includes: the chassis is fixedly connected with a wind wheel shaft of the mixed flow wind wheel and encloses a mounting cavity with the shell of the mixed flow wind wheel; an air inlet is formed in one end, far away from the base plate, of the mounting cavity, and an air outlet is formed in one end, close to the base plate, of the mounting cavity; the first blades are arranged in the mounting cavity and are arranged at intervals along the outer peripheral wall of the wind wheel shaft by taking the wind wheel shaft as a center, and the first blades extend from the air inlet to the air outlet; the second blades and the first blades are arranged in the mounting cavity in a staggered manner and close to the air outlet, and the chord lengths of the second blades are shorter than that of the first blades. The utility model discloses can enough realize increasing the consistency of blade and then improve the static pressure, can avoid again causing jam and frictional loss increase near the air intake too narrow because of the cascade passageway between air intake to the air outlet, and then can also the noise reduction.
Description
Technical field
The utility model is related to household electrical appliance technical fields, and in particular to a kind of blade assembly of mixed flow wind wheel, mixed flow wind
Wheel and the device with mixed flow wind wheel.
Background technology
The wind wheel of bladeless fan is using mixed flow wind wheel or centrifugal wind wheel currently on the market, but because its is small, wind pressure
Deficiency, the wind speed that can cause to blow is low, and if meeting wind pressure by way of improving the rotating speed of wind wheel, and noise can be caused to become
Greatly, the defect of poor user experience.
Therefore, in order to improve wind pressure while reduce noise, it will usually take the method for increasing solidity of blades, pass through and increase leaf
The piece number inhibits separation stream in leaf grating, improves static pressure, and reduce fan blade noise, reduces secondary flow loss, but from aerodynamics
From the point of view of angle, since wind wheel blade grid passage is beloid, consistency crosses conference and causes air-flow in front end (i.e. close to the position of air inlet
Place) it blocks；Meanwhile consistency is excessive can also friction loss be made to increase.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome mixed flow wind wheel in the prior art by increasing leaf
Piece consistency easily leads to blade grid passage blocking, the increased defect of friction loss at the position close to air inlet when improving wind pressure, from
And provide it is a kind of can by increase solidity of blades improve wind pressure while will not cause blade grid passage close to air inlet position
Set blade assembly, mixed flow wind wheel and the device with mixed flow wind wheel that place blocked, reduced the mixed flow wind wheel of friction loss.
The utility model provides a kind of blade assembly of mixed flow wind wheel, including：
Chassis is fixedly connected with the rotor shaft of mixed flow wind wheel, and surrounds installation cavity with the shell of mixed flow wind wheel；The peace
The one end of body far from the chassis behave affectedly equipped with air inlet, one end close to the chassis is equipped with air outlet；
Several first blades are set in the installation cavity and centered on the rotor shaft along the outer of the rotor shaft
Peripheral wall interval is arranged, and first blade extends to the air outlet from the air inlet；
Several second blades are set in the installation cavity with first blade stagger distribution close to the outlet air
At the position of mouth, and the chord length of the first blade described in the chord ratio of second blade is short.
Second blade is held level with both hands close to one end of the air outlet and first blade close to the one of the air outlet
Neat setting.
The air outlet is lateral openings annular in shape.
The corresponding position of circumferential direction of second blade and first blade centered on by the rotor shaft
Shape is consistent.
It is provided at least one second blade between two adjacent first blades.
There are one second blades for setting between two adjacent first blades.
The chord length of second blade is the 15%-75% of the chord length of first blade.
The chord length of second blade is the 30%-70% of the chord length of first blade.
The chord length of second blade is the 40% of the chord length of first blade.
First blade, second blade are set to the installation cavity with being fixedly connected with the chassis respectively
In.
The utility model also provides a kind of mixed flow wind wheel, including the blade assembly of above-mentioned mixed flow wind wheel and the shell.
The utility model also provides a kind of device with mixed flow wind wheel, including above-mentioned mixed flow wind wheel.
The device with mixed flow wind wheel is bladeless fan.
Technical solutions of the utility model have the following advantages that：
1. the blade assembly of mixed flow wind wheel provided by the utility model, including：Chassis is fixed with the rotor shaft of mixed flow wind wheel
Connection, and surround installation cavity with the shell of mixed flow wind wheel；The described installation one end of cavity far from the chassis is equipped with air inlet,
One end close to the chassis is equipped with air outlet；Several first blades are set in the installation cavity and with the rotor shaft
Centered on be arranged along the periphery wall interval of the rotor shaft, first blade extends to the air outlet from the air inlet；
Several second blades are set in the installation cavity with first blade stagger distribution close to the position of the air outlet
Place, and the chord length of the first blade described in the chord ratio of second blade is short.Pass through the position of the close air outlet in mixed flow wind wheel
The second blade for setting place's setting chord ratio the first chord of blade length can either realize that the consistency for increasing blade improves static pressure in turn,
It can resulted in blockage and friction loss to avoid because of air inlet to the blade grid passage between air outlet close to air inlet is narrow again
Increase, and then noise can also be reduced.
2. the blade assembly of mixed flow wind wheel provided by the utility model, second blade and first blade are with institute
The shape for stating the corresponding position of circumferential direction centered on rotor shaft is consistent.It can obtain in this way and preferably improve static pressure and noise reduction
Effect.
3. the chord length of the blade assembly of mixed flow wind wheel provided by the utility model, second blade is first blade
Chord length 30%-70%.The effect for preferably improving static pressure and noise reduction can be obtained in this way.
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 stereoscopic schematic diagram of the blade assembly of the mixed flow wind wheel provided in the embodiments of the present invention 1；
Fig. 2 is the stereoscopic schematic diagram of the mixed flow wind wheel provided in the embodiments of the present invention 2；
Fig. 3 is the schematic cross-sectional view of mixed flow wind wheel shown in Fig. 2；
Reference sign：
The chassis 1-, the first blades of 2-, the second blades of 3-, 4- rotor shafts, 5- install cavity, 6- air inlets, 7- air outlets, 8-
Shell.
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 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 1
As shown in Figure 1-Figure 3, the present embodiment provides a kind of blade assemblies of mixed flow wind wheel, including chassis 1, the first blade 2
With the second blade 3.
Chassis 1 is fixedly connected with the rotor shaft 4 of mixed flow wind wheel, and surrounds installation cavity 5 with the shell of mixed flow wind wheel 8；Institute
It states the one end of installation cavity 5 far from the chassis 1 and is equipped with air inlet 6, one end close to the chassis 1 is equipped with air outlet 7；
First blade 2 has several, is set in the installation cavity 5 and centered on the rotor shaft 4 along described
The periphery wall interval of rotor shaft 4 is arranged, and first blade 2 extends to the air outlet 7 from the air inlet 6；
Second blade 3 has several, is set to being interspersed in the installation cavity 5 and leans on first blade 2
At the position of the nearly air outlet 7, and the chord length of the first blade 2 described in the chord ratio of second blade 3 is short.The chord length,
Refer to air line distance of the blade close to one end of air inlet 6 and blade between one end of air outlet 7.
By the way that the second short leaf of chord ratio 2 chord lengths of the first blade is arranged at the position of the close air outlet 7 of mixed flow wind wheel
Piece 3 can either realize that the consistency for increasing blade improves static pressure in turn, and can be to avoid because of air inlet 6 to the leaf between air outlet 7
Grid channel results in blockage and friction loss increases narrow at the air inlet 6, and then can also reduce noise.
Second blade 3 is close to one end of the air outlet 7 and first blade 2 close to the one of the air outlet 7
Hold neat setting level with both hands.In the present embodiment, the concordant setting refers to that second blade 3 is arrived close to one end of the air outlet 7
The distance of rotor shaft 4 is equal at a distance from one end of the air outlet 7 to rotor shaft 4 with first blade 2.
The air outlet 7 is lateral openings annular in shape.
In the present embodiment, the circumferential direction of second blade 3 and first blade 2 centered on by the rotor shaft 4
The shape at the corresponding position in direction is consistent.The effect for preferably improving static pressure and noise reduction can be obtained in this way.
Between first blade 2 and the second blade 3 specifically the mode of being staggered can there are many, for example, can be adjacent
Two first blades 2 between be provided at least one second blade 3, can also be at adjacent two described second
At least one second blade 3 is set between blade 3.In this embodiment, it is arranged between adjacent two first blades 2
There are one second blades 3.
Specific proportionate relationship between the chord length of second blade 3 and the chord length of the first blade 2 can there are many, it is preferably described
The chord length of second blade 3 is the 15%-75% of the chord length of first blade 2, and static pressure and noise reduction are preferably improved in order to obtain
Effect, the chord length of further preferred second blade 3 is the 30%-70% of the chord length of first blade 2.In this implementation
In example, the chord length of second blade 3 is the 40% of the chord length of first blade 2.
First blade 2, second blade 3 are set to the installation cavity with being fixedly connected with the chassis 1 respectively
In body 5.
Embodiment 2
The present embodiment provides a kind of mixed flow wind wheels, including the blade assembly of the mixed flow wind wheel described in embodiment 1 and described
Shell 8.
Embodiment 3
The present embodiment provides a kind of devices with mixed flow wind wheel, including the mixed flow wind wheel described in embodiment 2.In this reality
It applies in example, the device with mixed flow wind wheel is bladeless fan.
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 blade assembly of mixed flow wind wheel, which is characterized in that including：
Chassis (1) is fixedly connected with the rotor shaft (4) of mixed flow wind wheel, and surrounds installation cavity with the shell of mixed flow wind wheel (8)
(5)；The described one end of installation cavity (5) far from the chassis (1) is equipped with air inlet (6), and one end close to the chassis (1) is set
There is air outlet (7)；
Several first blades (2) are set in the installation cavity (5) and centered on the rotor shaft (4) along the wind wheel
The periphery wall interval of axis (4) is arranged, and first blade (2) extends to the air outlet (7) from the air inlet (6)；
Several second blades (3) are set in the installation cavity (5) with first blade (2) close to institute with being interspersed
At the position for stating air outlet (7), and the chord length of the first blade (2) described in the chord ratio of second blade (3) is short.
2. the blade assembly of mixed flow wind wheel according to claim 1, which is characterized in that second blade (3) is close to institute
It states one end of air outlet (7) and first blade (2) and is arranged close to one end of the air outlet (7) is concordant.
3. the blade assembly of mixed flow wind wheel according to claim 1, which is characterized in that the air outlet (7) is annular in shape
Lateral openings.
4. the blade assembly of mixed flow wind wheel according to claim 1, which is characterized in that second blade (3) and described
The shape at circumferential direction corresponding position of the first blade (2) centered on by the rotor shaft (4) is consistent.
5. the blade assembly of the mixed flow wind wheel according to any one of claim 1-4, which is characterized in that two adjacent institutes
It states and is provided at least one second blade (3) between the first blade (2).
6. the blade assembly of mixed flow wind wheel according to claim 5, which is characterized in that two adjacent first blades
(2) there are one second blades (3) for setting between.
7. the blade assembly of the mixed flow wind wheel according to any one of claim 1-4, which is characterized in that second blade
(3) chord length is the 15%-75% of the chord length of first blade (2).
8. the blade assembly of mixed flow wind wheel according to claim 7, which is characterized in that the chord length of second blade (3)
For the 30%-70% of the chord length of first blade (2).
9. the blade assembly of mixed flow wind wheel according to claim 8, which is characterized in that the chord length of second blade (3)
It is the 40% of the chord length of first blade (2).
10. the blade assembly of the mixed flow wind wheel according to any one of claim 1-4, which is characterized in that first leaf
Piece (2), second blade (3) are set in the installation cavity (5) with being fixedly connected with the chassis (1) respectively.
11. a kind of mixed flow wind wheel, which is characterized in that including：The blade of mixed flow wind wheel described in any one of claim 1-10
Component and the shell (8).
12. a kind of device with mixed flow wind wheel, which is characterized in that including the mixed flow wind wheel described in claim 11.
13. the device according to claim 12 with mixed flow wind wheel, which is characterized in that the dress with mixed flow wind wheel
It is set to bladeless fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721404673.9U CN207777261U (en) | 2017-10-27 | 2017-10-27 | Blade assembly of mixed flow wind wheel, mixed flow wind wheel and device with mixed flow wind wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721404673.9U CN207777261U (en) | 2017-10-27 | 2017-10-27 | Blade assembly of mixed flow wind wheel, mixed flow wind wheel and device with mixed flow wind wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207777261U true CN207777261U (en) | 2018-08-28 |
Family
ID=63232480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721404673.9U Active CN207777261U (en) | 2017-10-27 | 2017-10-27 | Blade assembly of mixed flow wind wheel, mixed flow wind wheel and device with mixed flow wind wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207777261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107747562A (en) * | 2017-10-27 | 2018-03-02 | 珠海格力电器股份有限公司 | Blade assembly of mixed flow wind wheel, mixed flow wind wheel and device with mixed flow wind wheel |
-
2017
- 2017-10-27 CN CN201721404673.9U patent/CN207777261U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107747562A (en) * | 2017-10-27 | 2018-03-02 | 珠海格力电器股份有限公司 | Blade assembly of mixed flow wind wheel, mixed flow wind wheel and device with mixed flow wind wheel |
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| GR01 | Patent grant |