CN205689489U - A kind of centrifugation blade, centrifugal blower and air-conditioning equipment - Google Patents
A kind of centrifugation blade, centrifugal blower and air-conditioning equipment Download PDFInfo
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- CN205689489U CN205689489U CN201620676574.5U CN201620676574U CN205689489U CN 205689489 U CN205689489 U CN 205689489U CN 201620676574 U CN201620676574 U CN 201620676574U CN 205689489 U CN205689489 U CN 205689489U
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Abstract
This utility model is about a kind of centrifugation blade, centrifugal blower and air-conditioning equipment, relates to air-conditioning technical field.The technical scheme of main employing is: a kind of centrifugation blade includes shroud, hub disk and multiple fan blade.Wherein, shroud is provided with air inlet；Air outlet it is provided with between hub disk and shroud；Multiple blades are evenly spaced between shroud and hub disk；Wherein, the leading edge of blade is arranged to the shape of imitative bird's wing wing outer rim；Wherein, air-flow enters centrifugation blade from air inlet, enters runner through the leading edge of blade, then flows out from air outlet through the trailing edge of blade.A kind of centrifugal blower includes above-mentioned centrifugation blade.A kind of air-conditioning equipment includes above-mentioned centrifugal blower.This utility model is mainly used in improving centrifugation blade, centrifugal blower and the work efficiency of air-conditioning equipment, reduces centrifugation blade, centrifugal blower and the noise of air-conditioning equipment and power consumption.
Description
Technical field
This utility model relates to air-conditioning technical field, particularly relates to a kind of centrifugation blade, centrifugal blower and air-conditioning equipment.
Background technology
At present, being usually mounted with centrifugation blade in air-conditioning equipment, this centrifugation blade is used for moving air through heat exchanger, and then
Make air-flow and the coolant in heat exchanger carry out heat exchange, thus reach refrigeration and the purpose heated.
The work efficiency of existing centrifugation blade is the highest, and the blade mainly due to centrifugation blade is produced when rotated
Resistance relatively big, energy is used for overcoming pressure drag greatly.And the existence due to pressure drag so that air-flow is easy
Produce Secondary Flow and segregation phenomenon at entrance (i.e. the leading edge of the centrifugation blade blade) place of centrifugation blade, cause the product of eddy current noise
Raw, so that the noise of centrifugal blower and power consumption levels are higher, and limit the efficiency of centrifugal blower.
It addition, centrifugal blower is the conveying being realized air-flow by the air inlet through hollow shaft of centrifugation blade, radially air-out.When air-flow exists
When centrifugation blade entrance enters runner by the leading edge of blade, have little time to reach the root of blade inlet edge and just have occurred and that and turn round
And it is inhaled into fan blade runner, cause the blade inlet edge root of centrifugation blade cannot air-flow be done work, the most not only waste material,
And increase the motor load in centrifugal blower and cause the raising of motor power consumption level, reduce further centrifugal blower efficiency.
Utility model content
In view of this, this utility model provides a kind of centrifugation blade, centrifugal blower and air-conditioning equipment, and main purpose is fall
Low centrifugation blade, the noise of centrifugal blower and power consumption, improve centrifugation blade, the work efficiency of centrifugal blower.
For reaching above-mentioned purpose, this utility model mainly provides following technical scheme:
On the one hand, embodiment of the present utility model provides a kind of centrifugation blade, and described centrifugation blade includes:
Shroud, described shroud is provided with air inlet, is used for making air-flow axially in centrifugation blade；
Hub disk, is provided with air outlet between described hub disk and shroud, is used for making centrifugation blade radially air-out；
Multiple blades, the plurality of blade is evenly spaced between described shroud and hub disk；Wherein, the leading edge of described blade
It is arranged to the shape of imitative bird's wing wing outer rim；
Wherein, air-flow axially into centrifugation blade, enters runner, then warp through the leading edge of described blade from described air inlet
The trailing edge of described blade flows out from described air outlet.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
Preferably, the leading edge of described blade has the first end and the second end；Described first end is before described hub disk
Edge blade root, described second end is the leading edge leaf top near described shroud；
Wherein, being shaped as within described leading edge blade root presents successively to described leading edge leaf top of described imitative bird's wing wing outer rim
Recessed, the curve shape change of evagination.
Preferably, the leading edge of described blade is provided with recess and projection；Wherein,
Described recess is positioned at described leading edge blade root or the position near described leading edge blade root；
Described projection is positioned at the position in the middle part of the leading edge of described blade or in the middle part of leading edge.
Preferably, when described recess is located close to the position of described leading edge blade root, described projection and recess are by described
The leading edge of blade is divided into three sections of gentle transition；
Wherein, three sections of described gentle transition include by the most convex to described projection of described leading edge leaf top gentle transition
First paragraph, by the second segment of the recess of the most convex gentle transition of described projection to described recess, the most recessed by described recess
Place transits to the 3rd section of described leading edge blade root.
Preferably, the recess of described recess the 3rd section that transits to described leading edge blade root is arc structure.
Preferably, the recess of described recess the 3rd section of described leading edge blade root is transitted to for being perpendicular in described hub disk
The straight section of baseplane.
Preferably, when described recess is positioned on described leading edge blade root, described projection and recess are by the leading edge of described blade
It is divided into two sections of gentle transition；
Wherein, two sections of described gentle transition include by the most convex to described projection of described leading edge leaf top gentle transition
First paragraph, second segment by the most convex protruding gentle transition to described blade root.
Preferably, described projection is positioned at the position of leading edge middle and lower part of described blade.
Preferably, described projection is circular arc.
Preferably, when recess gentle transition to the 3rd section of described leading edge blade root of described recess is arc structure,
Described recess is circular arc.
Preferably, the radius of described projection and recess is equal.
On the other hand, embodiment of the present utility model provides a kind of centrifugal blower, and described centrifugal blower includes centrifugation blade
And motor；Wherein, described centrifugation blade is the centrifugation blade described in any of the above-described item.
On the other hand, embodiment of the present utility model provides a kind of air-conditioning equipment, including above-described centrifugal blower.
Compared with prior art, centrifugation blade of the present utility model, centrifugal blower and air-conditioning equipment at least have following
Beneficial effect:
The centrifugation blade that this utility model embodiment provides by being arranged to the shape of imitative bird's wing wing outer rim by the leading edge of blade
Shape, makes the leading edge of blade present regular change from leading edge blade root to leading edge leaf top, and the leading edge of this shape can reduce air-flow
In the separation of the entrance point boundary region (i.e. the leading edge of fan blade) of fan blade, reduce the pressure drag of centrifugation blade blade, prevent secondary
The generation of stream, thus improve the work efficiency of centrifugation blade and centrifugal blower, reduce noise and the power consumption of centrifugal blower.
Further, the centrifugeblade that this utility model embodiment provides is by being arranged to the leading edge of blade as from leading edge
Blade root presents the structure of the curve shape change of indent, evagination successively to leading edge leaf top, except realizing reduction gas described above
Flow in fan blade inducer boundary layer separation, reduce outside the beneficial effect of fan blade pressure drag, due to blade leading edge root (
This leading edge root includes the part in the leading edge of leading edge blade root and blade near leading edge blade root) air-flow is not done work, and incite somebody to action
The leading edge root of blade carries out indent process (that is, arranging recess), for the blade of existing centrifugation blade, which removes
Portion of material, thus reduce the cost of centrifugation blade and the load of motor, make an uproar further up to reduction centrifugation blade, centrifugal blower
Sound and power consumption, improve centrifugation blade, the purpose of centrifugal blower efficiency.
To sum up, this utility model embodiment provides centrifugation blade, centrifugal blower and air-conditioning equipment are by by centrifugation blade
The leading edge of Leaf is arranged to imitative bird's wing wing shape, reduces air-flow at vane inlet end boundary layer separation, reduction fan blade pressure reduction
Resistance, simultaneously because air-flow is not done work by blade inlet edge root, uses indent to process, removes portion of material, reduce centrifugal wind
The cost of leaf and the load of motor, be finally reached reduction centrifugation blade, centrifugal blower and the noise of air-conditioning equipment and power consumption, improve
Centrifugation blade, centrifugal blower and the purpose of air-conditioning equipment work efficiency.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and can being practiced according to the content of description, below with preferred embodiment of the present utility model and coordinate accompanying drawing detailed
Describe in detail bright as after.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of centrifugation blade that embodiment of the present utility model provides；
Fig. 2 is the cross-sectional schematic of a kind of centrifugation blade that embodiment of the present utility model provides；
Fig. 3 is the close-up schematic view of a kind of blade that embodiment of the present utility model provides；
Fig. 4 is the leading edge curve shape schematic diagram of a kind of blade that embodiment of the present utility model provides；
Fig. 5 is the leading edge curve shape schematic diagram of the another kind of blade that embodiment of the present utility model provides；
Fig. 6 is the leading edge curve shape schematic diagram of another blade that embodiment of the present utility model provides.
Detailed description of the invention
By further illustrating the technological means and effect that this utility model taked by reaching predetermined utility model purpose,
Below in conjunction with accompanying drawing and preferred embodiment, to according to the detailed description of the invention of this utility model application, structure, feature and merit thereof
Effect, after describing in detail such as.In the following description, what different " embodiments " or " embodiment " referred to is not necessarily same enforcement
Example.Additionally, special characteristic, structure or feature in one or more embodiment can be combined by any suitable form.
Embodiment 1
As depicted in figs. 1 and 2, the present embodiment provides a kind of centrifugation blade, and this centrifugation blade includes shroud 1, hub disk 2 and many
Individual blade 3.Wherein, shroud 1 is provided with air inlet 11, is used for making air-flow axially in centrifugation blade.Hub disk 2 and shroud 1
Between be provided with air outlet, be used for making centrifugation blade radially air-out.Multiple blades 3 are evenly spaced between shroud 1 and hub disk 2；
Wherein, the leading edge 31 of blade 3 be arranged to imitative bird's wing wing outer rim shape (leading edge 31 shape of the blade as described in Fig. 1 to Fig. 3,
And leading edge curve shape as shown in Figures 4 to 6).
The present embodiment provide centrifugation blade, under the drive of motor, from air inlet 11, air-flow is axially sucked centrifugation blade
In, enter runner through the leading edge 31 of blade 3, then flow out from air outlet through the trailing edge of blade 3.
The centrifugation blade that the present embodiment provides, by the leading edge 31 of blade 3 is arranged to the shape of imitative bird's wing wing outer rim, makes
The leading edge 31 of blade 3 presents regular change from leading edge blade root to leading edge leaf top, and the leading edge of this shape can reduce air-flow and exist
The separation of the entrance point boundary region (i.e. the leading edge of fan blade 3) of fan blade 3, reduces the pressure drag of centrifugation blade blade 3, prevents secondary
The generation of stream, thus improve the work efficiency of centrifugation blade and centrifugal blower, reduce noise and the power consumption of centrifugal blower.
It is preferred that the leading edge of the present embodiment and following embodiment Leaf 3 is preferably arranged to the outer rim of imitative seabird wing
Shape.
It is preferred that shroud 1 and hub disk 2 in the present embodiment and following embodiment are connected by connector, and shroud 1 He
The cavity for housing blade 3 is formed between hub disk 2, and, air outlet is arranged on this cavity；The trailing edge of multiple blades 3 is equal
Even it is arranged at air outlet.
Embodiment 2
It is preferred that as shown in Figure 1 to Figure 3, the present embodiment provides a kind of centrifugation blade, compared with a upper embodiment, this
The leading edge 31 of embodiment Leaf 3 has the first end and the second end；First end is the leading edge blade root 312 near hub disk 2, the second end
For the leading edge leaf top 311 near shroud 1.It is preferred that the leading edge blade root 312 in the present embodiment and the inner bottom place plane of hub disk 2
Contact.
Wherein, the shape of the imitative bird's wing wing outer rim in the present embodiment refers specifically to: from leading edge blade root 312 to leading edge leaf top
The 311 curve shape changes presenting indent, evagination successively.Specific as follows: as shown in Figures 1 to 6, the present embodiment Leaf 3
Projection 313 and recess 314 it is provided with in leading edge；Wherein, recess 314 is positioned at leading edge blade root 312 or the position near leading edge blade root 312
Put place.Protruding 313 are positioned at the position in the middle part of the leading edge of blade 3 or in the middle part of leading edge, the preferably middle and lower part of leading edge.
The centrifugeblade that the present embodiment provides is by being arranged to the leading edge of blade 3 as depended on to leading edge leaf top from leading edge blade root
The structure of the secondary curve shape change presenting indent, evagination, except realizing the reduction air-flow described in above-described embodiment 1 at fan blade
Inducer boundary layer separation, reduces outside the beneficial effect of fan blade pressure drag, owing to the leading edge root of blade 3 is (before in this
Edge root includes the part in the leading edge of leading edge blade root 312 and blade 3 near leading edge blade root 312) air-flow is not done work, and incite somebody to action
The leading edge root of blade 3 carries out indent process (that is, arranging recess), and for the blade of existing centrifugation blade, it is removed
Portion of material, thus reduce the cost of centrifugation blade and the load of motor, further up to reducing centrifugation blade, centrifugal blower
Noise and power consumption, improve centrifugation blade, the purpose of centrifugal blower efficiency.
Embodiment 3
It is preferred that the present embodiment provides a kind of centrifugation blade, compared with above-described embodiment, as shown in Figures 1 to 4, this reality
Recess 314 in the leading edge of the centrifugation blade Leaf executing example is located close to the position of leading edge blade root 312.Correspondingly, this reality
Execute the projection 313 in example and recess 314 and the leading edge of blade is divided into three sections of gentle transition.Wherein, three sections of bags of gentle transition
Include the most convex first paragraph by leading edge leaf top 311 gentle transition to protruding 313, the most convex gentle transition by protruding 313 to
The second segment of the recess of recess 314, by the 3rd section of the recess gentle transition of recess 314 to leading edge blade root 312.Wherein,
In the present embodiment the 3rd section is to the arc structure of leading edge blade root 312 from the recess gentle transition of recess 314.
It is preferred that the projection 313 in the present embodiment is positioned at the position of the leading edge middle and lower part of blade.
The leading edge curve shape of the centrifugation blade Leaf of the present embodiment is as shown in Figure 4.Wherein, protruding 313 is due to recessed
Self-assembling formation after portion 314 indent, by removing material formation recess 314 on the basis of prophyll sheet leading edge shape.Preferably
Ground, the recess 314 formed and protruding 313 is circular arc, the radius of circular arc-shaped recess 314 substantially with the circular arc formed
The radius of protruding 313 is equal, smoothly transits to protruding 313 from recess 314.
As depicted in figs. 1 and 2, when the above-mentioned centrifugation blade that the present embodiment provides operates under the effect of motor, it will
Air-flow axially sucks the runner of fan blade from air inlet 11, wherein, air-flow when entering the runner of fan blade first with blade inlet edge 31
On projection 313 contact, the most respectively forwardly flow at edge leaf top 311 and leading edge blade root 312, eventually enter into the runner quilt of fan blade
Throw away through air outlet from the trailing edge of blade 3 after fan blade 3 acting.
The blade inlet edge design of this imitative bird's wing wing in the present embodiment centrifugation blade can reduce fan blade entrance point border
The separation of layer, reduces fan blade pressure drag, prevents the generation of Secondary Flow, simultaneously because air-flow is not done by blade inlet edge root
Merit, uses indent to process, removes portion of material, reduces cost and the load of motor of centrifugation blade, is finally reached reduction centrifugal
Fan blade, the noise of centrifugal blower and power consumption, improve the purpose of the work efficiency of centrifugation blade, centrifugal blower.
Embodiment 4
It is preferred that the present embodiment provides a kind of centrifugation blade, as shown in Figure 6, the centrifugation blade in the present embodiment and enforcement
Centrifugation blade in example 3 is compared, and difference is as follows: the 3rd section of the blade inlet edge in the present embodiment for be perpendicular to hub disk plane
Straight section.
Correspondingly, compared with the recess in embodiment 3 Leaf leading edge, the recess in the leading edge of the present embodiment Leaf
The degree of depth of 314 is shallower, it is preferred that the recess 314 in the present embodiment is only the upper half near projection 313 of embodiment 3 center dant
Part.
It is preferred that protruding 313 are positioned at the leading edge middle and lower part of blade.It is preferred that the projection 313 in the present embodiment is circular arc
Shape.
The centrifugation blade that the present embodiment provides centrifugation blade as described in embodiment 3, it is also possible to play the centrifugal wind of reduction
Leaf, the noise of centrifugal blower and power consumption, improve the purpose of the work efficiency of centrifugation blade, centrifugal blower.
Embodiment 5
It is preferred that the present embodiment provides a kind of centrifugation blade, compared with embodiment 3 and embodiment 4, as it is shown in figure 5, this reality
Execute the recess in example and be positioned at leading edge blade root 312, i.e. leading edge blade root 312 itself is as recess.Correspondingly, projection 313 and recess will
The leading edge of blade is divided into two sections of gentle transition.Wherein, two sections of gentle transition include by leading edge leaf top 311 gentle transition to convex
Play the first paragraph at the top of 313, be transitioned into the second segment of leading edge blade root 312 (i.e. recess) by the top of protruding 313 gently.
The present embodiment, by above-mentioned setting, makes the recess (that is, leading edge blade root 312) in the leading edge of blade direct and hub disk
Inner bottom plane contact, thus form big triangle indent, correspondingly, the degree of convexity of the projection 313 thus formed can be more
Larger, but the position of protruding 313 substantially remains in position, leading edge middle and lower part.The material that this concave inward structure of the present embodiment is removed
Expect more, more preferable for reducing the effect of fan blade material cost and motor load.
Embodiment 6
On the other hand, the present embodiment provides a kind of centrifugal blower, and this centrifugal blower includes centrifugation blade and motor.Wherein,
Centrifugation blade is the centrifugation blade described in any of the above-described embodiment.
Owing to the centrifugal blower in the present embodiment includes the centrifugation blade described in any of the above-described embodiment, so the present embodiment
In the work efficiency that centrifugal blower has relatively low noise, power consumption is less and higher.
Embodiment 7
On the other hand, the present embodiment provides a kind of air-conditioning equipment, including the centrifugal blower described in embodiment 6.
Wherein, in the present embodiment, the centrifugal blower on air-conditioning equipment is used for moving air through heat exchanger, so make air-flow with
Coolant in heat exchanger carries out heat exchange, thus reaches refrigeration and/or the purpose heated.Due to the air-conditioning equipment in the present embodiment
Employ the centrifugal blower of an embodiment, thus improve the work efficiency of air-conditioning equipment, and reduce making an uproar of air-conditioning equipment
Sound and power consumption.
To sum up, this utility model provides centrifugation blade, centrifugal blower and air-conditioning equipment are by by centrifugation blade Leaf
Leading edge be arranged to imitative bird's wing wing shape, reduce air-flow in vane inlet end boundary layer separation, reduce fan blade pressure drag, with
Time air-flow is not done work due to blade inlet edge root, use indent to process, remove portion of material, reduce the cost of centrifugation blade
And the load of motor, it is finally reached reduction centrifugation blade, centrifugal blower and the noise of air-conditioning equipment and power consumption, improves centrifugal wind
Leaf, centrifugal blower and the purpose of air-conditioning equipment work efficiency.
To sum up, skilled addressee readily understands that, on the premise of not conflicting, above-mentioned each advantageous manner can be certainly
By ground combination, superposition.
The above, be only preferred embodiment of the present utility model, not this utility model is made any in form
Restriction, any simple modification, equivalent variations and modification above example made according to technical spirit of the present utility model,
All still fall within the range of technical solutions of the utility model.
Claims (13)
1. a centrifugation blade, it is characterised in that described centrifugation blade includes:
Shroud, described shroud is provided with air inlet, is used for making air-flow axially in centrifugation blade；
Hub disk, is provided with air outlet between described hub disk and shroud, is used for making centrifugation blade radially air-out；
Multiple blades, the plurality of blade is evenly spaced between described shroud and hub disk；Wherein, the leading edge of described blade is arranged
Become the shape of imitative bird's wing wing outer rim；
Wherein, air-flow axially into centrifugation blade, enters runner through the leading edge of described blade from described air inlet, then through described
The trailing edge of blade flows out from described air outlet.
Centrifugation blade the most according to claim 1, it is characterised in that the leading edge of described blade has the first end and second
End；Described first end is the leading edge blade root near described hub disk, and described second end is the leading edge leaf top near described shroud；
Wherein, described imitative bird's wing wing outer rim be shaped as from described leading edge blade root to described leading edge leaf top present successively indent,
Convex curve shape change.
Centrifugation blade the most according to claim 2, it is characterised in that be provided with recess and convex in the leading edge of described blade
Rise；Wherein,
Described recess is positioned at described leading edge blade root or the position near described leading edge blade root；
Described projection is positioned at the position in the middle part of the leading edge of described blade or in the middle part of leading edge.
Centrifugation blade the most according to claim 3, it is characterised in that when described recess is located close to described leading edge blade root
During position, the leading edge of described blade is divided into three sections of gentle transition by described projection and recess；
Wherein, three sections of described gentle transition include by the most convex first of described leading edge leaf top gentle transition to described projection
Section, the second segment by the recess of the most convex gentle transition of described projection to described recess, the recess mistake by described recess
Cross the 3rd section to described leading edge blade root.
Centrifugation blade the most according to claim 4, it is characterised in that transitted to described leading edge by the recess of described recess
The 3rd section of blade root is arc structure.
Centrifugation blade the most according to claim 4, it is characterised in that transitted to described leading edge by the recess of described recess
The 3rd section of blade root is to be perpendicular to the straight section of baseplane in described hub disk.
Centrifugation blade the most according to claim 3, it is characterised in that when described recess is positioned on described leading edge blade root,
The leading edge of described blade is divided into two sections of gentle transition by described projection and recess；
Wherein, two sections of described gentle transition include by the most convex first of described leading edge leaf top gentle transition to described projection
Section, second segment by the most convex protruding gentle transition to described blade root.
8. according to the centrifugation blade described in any one of claim 4-7, it is characterised in that before described projection is positioned at described blade
The position of edge middle and lower part.
9. according to the centrifugation blade described in any one of claim 3-7, it is characterised in that described projection is circular arc.
Centrifugation blade the most according to claim 9, it is characterised in that when the recess of described recess transit to described before
The 3rd section of edge blade root when being arc structure, described recess is circular arc.
11. centrifugation blades according to claim 10, it is characterised in that the radius of described projection and recess is equal.
12. 1 kinds of centrifugal blowers, it is characterised in that described centrifugal blower includes centrifugation blade and motor；Wherein, described centrifugal wind
Leaf is the centrifugation blade described in any one of claim 1-11.
13. 1 kinds of air-conditioning equipments, it is characterised in that described air-conditioning equipment includes the centrifugal blower described in claim 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620676574.5U CN205689489U (en) | 2016-06-27 | 2016-06-27 | A kind of centrifugation blade, centrifugal blower and air-conditioning equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620676574.5U CN205689489U (en) | 2016-06-27 | 2016-06-27 | A kind of centrifugation blade, centrifugal blower and air-conditioning equipment |
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| CN205689489U true CN205689489U (en) | 2016-11-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015090A (en) * | 2016-06-27 | 2016-10-12 | 珠海格力电器股份有限公司 | Centrifugal fan blade, centrifugal fan and air conditioning device |
-
2016
- 2016-06-27 CN CN201620676574.5U patent/CN205689489U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015090A (en) * | 2016-06-27 | 2016-10-12 | 珠海格力电器股份有限公司 | Centrifugal fan blade, centrifugal fan and air conditioning device |
| CN106015090B (en) * | 2016-06-27 | 2019-03-15 | 珠海格力电器股份有限公司 | A kind of centrifugation blade, centrifugal blower and air-conditioning equipment |
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