CN208918914U - Axial-flow windwheel, air-conditioner outdoor unit and air conditioner - Google Patents
Axial-flow windwheel, air-conditioner outdoor unit and air conditioner Download PDFInfo
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- CN208918914U CN208918914U CN201821735174.2U CN201821735174U CN208918914U CN 208918914 U CN208918914 U CN 208918914U CN 201821735174 U CN201821735174 U CN 201821735174U CN 208918914 U CN208918914 U CN 208918914U
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Abstract
The utility model discloses a kind of axial-flow windwheel, air-conditioner outdoor unit and air conditioner.Axial-flow windwheel includes: wheel hub；With multiple blades, multiple blades are located on the periphery wall of wheel hub and are separated from each other along the circumferential direction of wheel hub, each blade is made of in the section in the radial direction of wheel hub the first curved section and the second curved section, the inner end of first curved section is connected to the periphery wall of wheel hub and the first curved section extends towards the direction of one of them inclination in the suction surface and pressure face of blade, and the inner end of the second curved section is connected to the outer end of the first curved section and the second curved section extends towards another the direction inclination in the suction surface and pressure face of blade.Axial-flow windwheel according to the present utility model, can effectively reduce the leakage of blade tip clearance, while improve blade surface Secondary Flow, the flow of axial-flow windwheel is effectively improved, while can reduce the loss of axial-flow windwheel, reduces axial-flow windwheel noise, aeroperformance is improved, user experience is improved.
Description
Technical field
The utility model relates to living electric apparatus fields, more particularly, to a kind of axial-flow windwheel, air-conditioner outdoor unit and air conditioner.
Background technique
In the related technology, the blade root separation of axial-flow windwheel and clearance leakage of blade tip are serious, blade surface radial second
Stream is serious, and gas flow loss is big, and wind wheel air quantity is small, low efficiency, and the noise of axial-flow windwheel is very high, has seriously affected user
Experience.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model
One purpose is to propose a kind of axial-flow windwheel, and the axial-flow windwheel air quantity is big, low noise.
The utility model also proposes a kind of air-conditioner outdoor unit including above-mentioned axial-flow windwheel.
The utility model also proposes a kind of air conditioner including above-mentioned air-conditioner outdoor unit.
According to the axial-flow windwheel of the utility model embodiment, comprising: wheel hub；With multiple blades, the multiple blade is located at
It is separated from each other on the periphery wall of the wheel hub and along the circumferential direction of the wheel hub, diameter of each blade in the wheel hub
Section on direction is made of the first curved section and the second curved section, and the inner end of first curved section is connected to the wheel
The direction of one of them of the periphery wall of hub and first curved section direction in the suction surface and pressure face of the blade
Inclination extends, and the inner end of second curved section is connected to the outer end of first curved section and second curved section direction is leaned on
Another direction in the suction surface and pressure face of the nearly blade, which tilts, to be extended.
According to the axial-flow windwheel of the utility model embodiment, by the extension side for making the first curved section and the second curved section
To on the contrary, the leakage of blade tip clearance can be effectively reduced, while improving blade surface Secondary Flow, effectively improves the stream of axial-flow windwheel
Amount, while can reduce the loss of axial-flow windwheel, axial-flow windwheel noise is reduced, aeroperformance is improved, improves user experience.
Some embodiments according to the present utility model, first curved section are formed as arcuate shape.
Some embodiments according to the present utility model, second curved section are formed as arcuate shape.
Some embodiments according to the present utility model, the plane definition that will be perpendicular to the central axis of the wheel hub is plane
M, the radius of the periphery wall of wheel hub circle where the orthographic projection in the plane m are Rh, first curved section and described
The radius of the junction of second curved section circle where the orthographic projection in the plane m is R1, Rh and R1 satisfaction: 1.02Rh≤
R1。
Some embodiments according to the present utility model, the outer rim of blade circle where the orthographic projection in the plane m
Radius be Rs, Rh, R1 and Rs meet: 1.02Rh≤R1≤0.98Rs.
Some embodiments according to the present utility model, at least one end face in the axial ends face of the wheel hub are equipped with
The reinforcing rib extended along the radial direction of the wheel hub.
Some embodiments according to the present utility model, when the end face of axial one end of the wheel hub is equipped with multiple reinforcements
When muscle, the reinforcing rib is divided into multiple groups, and reinforcing rib described in multiple groups and multiple blades correspond, reinforcing rib packet described in every group
Include the reinforcing rib of identical quantity, and reinforcing rib described in multiple groups is uniformly distributed along the circumferential direction of the wheel hub, described in every group plus
When strengthening tendons include multiple reinforcing ribs, multiple reinforcing ribs in every group are uniformly distributed.
Some embodiments according to the present utility model, the outer edge in the axial ends face of the wheel hub be equipped with it is described
The baffle of the centerline axis parallel of wheel hub, the baffle are circularized along the circumferential direction extension of the wheel hub, the axis of the wheel hub
The free end of the baffle of one end into both ends is equipped with multiple notches, and multiple notches are along the circumferential direction interval of the baffle
It opens, the free end of the baffle of the other end in the axial ends of the wheel hub is equipped with multiple protrusive boards with notch cooperation.
Some embodiments according to the present utility model, the end face that the wheel hub is equipped with one end of the notch are equipped with more
A positioning bar, multiple positioning bars and multiple notches correspond, and the positioning bar is located at the corresponding notch
The height of inside and the positioning bar is higher than the minimum point of the notch.
According to the air-conditioner outdoor unit of the utility model embodiment, including above-mentioned axial-flow windwheel.
According to the air-conditioner outdoor unit of the utility model embodiment, by the extension for making the first curved section and the second curved section
It is contrary, the leakage of blade tip clearance can be effectively reduced, while improving blade surface Secondary Flow, effectively improve axial-flow windwheel
Flow, while can reduce the loss of axial-flow windwheel, axial-flow windwheel noise is reduced, aeroperformance is improved, improves user experience.
According to the air conditioner of the utility model embodiment, including above-mentioned air-conditioner outdoor unit.
According to the air conditioner of the utility model embodiment, by the extending direction for making the first curved section and the second curved section
On the contrary, the leakage of blade tip clearance can be effectively reduced, while improving blade surface Secondary Flow, effectively improves the stream of axial-flow windwheel
Amount, while can reduce the loss of axial-flow windwheel, axial-flow windwheel noise is reduced, aeroperformance is improved, improves user experience.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the schematic diagram according to the axial-flow windwheel of some embodiments of the utility model；
Fig. 2 is the schematic diagram of the other direction of axial-flow windwheel according to figure 1；
Fig. 3 is the schematic cross-sectional view in the direction A-A of axial-flow windwheel according to Fig.2,；
Fig. 4 is the schematic diagram according to the axial-flow windwheel of the utility model other embodiments；
Fig. 5 is the schematic diagram of the other direction of axial-flow windwheel according to Fig.4,；
Fig. 6 is the schematic diagram in the direction B-B of axial-flow windwheel according to figure 5；
Fig. 7 is the schematic diagram according to the wheel hub of some embodiments of the utility model；
Fig. 8 is the schematic diagram of the other direction of wheel hub according to figure 7.
Appended drawing reference:
Axial-flow windwheel 100,
Wheel hub 1, reinforcing rib 11, baffle 12, notch 13, protrusive board 14, positioning bar 15,
Blade 2, leading edge 21, outer rim 22, trailing edge 23, the first curved section 24, the second curved section 25, junction 26, suction surface
27, pressure face 28.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
Below with reference to Fig. 1-Fig. 8 description according to the axial-flow windwheel 100, air-conditioner outdoor unit and air-conditioning of the utility model embodiment
Device.
It as shown in figs 1 to 6, may include wheel hub 1 and multiple leaves according to the axial-flow windwheel of the utility model embodiment 100
Piece 2.For example, as shown in figs 1 to 6, axial-flow windwheel 100 includes three blades.It should be noted that unless otherwise indicated, this reality
Two or more are each meant with " multiple " in novel.
Specifically, multiple blades 2 are intervally arranged along the circumferential direction of wheel hub 1 referring to Fig.1 shown in-Fig. 6, that is to say, that
Multiple blades 2 are located on the periphery wall of wheel hub 1 and are separated from each other along the circumferential direction of wheel hub 1.Preferably, multiple 2 edges of blade
The circumferential direction of wheel hub 1 is evenly spaced on, and the shape of each blade 2 is identical, it is possible thereby to make the structure of axial-flow windwheel 100
It is more uniform, so that the rotation of axial-flow windwheel 100 is more stable.
As shown in Figure 2 and Figure 5, the contour edge of blade 2 includes successively end to end leading edge 21, outer rim 22, trailing edge 23
And blade root, blade root connect with wheel hub 1, in the rotation direction of wheel hub 1, leading edge 21 is located at the front side of trailing edge 23.
Specifically, as shown in Figure 3 and Figure 6, each blade 2 is in the section in the radial direction of wheel hub 1 by the first curve
Section 24 and the second curved section 25 are constituted.That is, on from wheel hub 1 to the direction of the outer rim 22 of blade 2, each blade 2
Radial section is made of two sections of continuous curves, this two sections continuous curves are the first curved section 24 and the second curved section
25。
Specifically, the inner end of the first curved section 24 is connected to the periphery wall of wheel hub 1, the inner end connection of the second curved section 25
To the outer end of the first curved section 24.Here it is possible to understand, the inner end of the first curved section 24 is one of above-mentioned blade root
Point, the outer end of the second curved section 25 is a part of above-mentioned outer rim 22.What needs to be explained here is that "inner" and "outside" are phases
Anti- direction, the direction close to the central axis of wheel hub 1 be it is interior, the direction of the central axis of separate wheel hub 1 is outer.
First curved section 24 prolongs towards the direction of one of them inclination in the suction surface 27 and pressure face 28 of blade 2
It stretches, the second curved section 25 is tilted towards another the direction in the suction surface 27 and pressure face 28 of blade 2 to be extended.Also
It is to say, the extending direction of the first curved section 24 and the second curved section 25 is on the contrary, when the first curved section 24 towards the suction close to blade 2
When the direction in power face 27 tilts extension, the second curved section 25 then extends (such as towards the inclination of the direction of the pressure face 28 close to blade 2
Shown in Fig. 1-Fig. 3)；When tilting extension towards the direction of the pressure face 28 close to blade 2 when the first curved section 24, the second curved section
25 extend (such as Fig. 4-Fig. 6) towards the inclination of the direction of the suction surface 27 close to blade 2.As a result, by making the first curved section
24 and second curved section 25 extending direction on the contrary, the leakage of blade tip clearance can be effectively reduced, while improving 2 surface two of blade
Secondary stream effectively improves 100 flow of axial-flow windwheel, while can reduce the loss of axial-flow windwheel 100, reduces axial-flow windwheel 100 and makes an uproar
Sound improves aeroperformance, improves user experience.
Test through inventor proves, under same rotational speed, compared with axial-flow windwheel in the related technology, the utility model
100 air quantity of axial-flow windwheel can be improved 5%, and power reduces 3W, lower noise 1dB.
It is to be understood that suction surface 27 and pressure face 28 are located at the two sides of blade 2, in the flow direction of air-flow
On, suction surface 27 is located at the upstream of pressure face 28.
According to the axial-flow windwheel 100 of the utility model embodiment, by making the first curved section 24 and the second curved section 25
Extending direction on the contrary, the leakage of blade tip clearance can be effectively reduced, while improving 2 surface second stream of blade, effectively improve axis
The flow of wind wheel 100 is flowed, while can reduce the loss of axial-flow windwheel 100,100 noise of axial-flow windwheel is reduced, improves pneumatic property
Can, improve user experience.
In some embodiments of the utility model, the first curved section 24 is formed as arcuate shape, that is to say, that in radial direction
On direction, the first curved section 24 extends into arcuate shape.Be not only advantageous to as a result, simplify blade 2 structure, and be conducive into
One step reduces the leakage of blade tip clearance, improves 2 surface second stream of blade, improves the flow of axial-flow windwheel 100, reduces axial-flow windwheel
100 loss reduces by 100 noise of axial-flow windwheel, improves aeroperformance.
Some embodiments according to the present utility model, the second curved section 25 are formed as arcuate shape, that is to say, that in radial direction
On direction, the second curved section 25 extends into arcuate shape.Be not only advantageous to as a result, simplify blade 2 structure, and be conducive into
One step reduces the leakage of blade tip clearance, improves 2 surface second stream of blade, improves the flow of axial-flow windwheel 100, reduces axial-flow windwheel
100 loss reduces by 100 noise of axial-flow windwheel, improves aeroperformance.
Some embodiments according to the present utility model will be perpendicular to the central axis of wheel hub 1 referring to shown in Fig. 2 and Fig. 5
Plane definition is plane m, and the radius of the periphery wall of wheel hub 1 circle where the orthographic projection in plane m is Rh, 24 He of the first curved section
The radius of the junction 26 of second curved section 25 circle where the orthographic projection in plane m is R1, Rh and R1 satisfaction: 1.02Rh≤
R1.As a result, by meeting Rh and R1: 1.02Rh≤R1 can further decrease the leakage of blade tip clearance, improve 2 table of blade
Face Secondary Flow improves 100 flow of axial-flow windwheel, reduces the loss of axial-flow windwheel 100, reduces by 100 noise of axial-flow windwheel, improves gas
Dynamic performance.
Specifically, referring to shown in Fig. 2 and Fig. 5, the outer rim 22 of blade 2 radius of circle where the orthographic projection in plane m is
Rs, Rh, R1 and Rs meet: 1.02Rh≤R1≤0.98Rs.For example, 1.06Rh≤R1≤0.98Rs, 1.07Rh≤R1≤
0.96Rs, 1.1Rh≤R1≤0.95Rs.As a result, by meeting Rh, R1 and Rs: 1.02Rh≤R1≤0.98Rs is conducive to
The leakage for further reducing blade tip clearance, improves 2 surface second stream of blade, improves the flow of axial-flow windwheel 100, reduces axis stream
The loss of wind wheel 100 reduces by 100 noise of axial-flow windwheel, improves aeroperformance.
In some embodiments of the utility model, as shown in Figs. 7-8, at least one in the axial ends face of wheel hub 1
A end face is equipped with the reinforcing rib 11 extended along the radial direction of wheel hub 1.It is possible thereby to which the structure for reinforcing axial-flow windwheel 100 is strong
Degree, can reduce the size of other structures on axial-flow windwheel 100 or removes the other components of other part or parts accordingly, thus
The weight of axial-flow windwheel 100 is reduced, power of motor is reduced, improves efficiency.Furthermore it is also possible to reduce the cost of raw material.
For example, being equipped with radially direction extension on the axial ends face of wheel hub 1 in Fig. 7 and example shown in Fig. 8
Reinforcing rib 11, reinforcing rib 11 be it is multiple, multiple reinforcing ribs 11 along wheel hub 1 circumferential direction be spaced apart.
Further, when the end face of axial one end of wheel hub 1 is equipped with multiple reinforcing ribs 11, reinforcing rib 11 divides for multiple groups,
Multiple groups reinforcing rib 11 and multiple blades 2 correspond, and every group of reinforcing rib 11 includes the reinforcing rib 11 of identical quantity, and multiple groups are reinforced
Muscle 11 is uniformly distributed along the circumferential direction of wheel hub 1, when every group of reinforcing rib 11 includes multiple reinforcing ribs 11, multiple in every group plus
Strengthening tendons 11 are uniformly distributed.It is understood that corresponding multiple reinforcing ribs 11 are along the circumferential direction side of wheel hub 1 in every group of reinforcing rib 11
To being uniformly distributed.It is possible thereby to make the structure of axial-flow windwheel 100 more uniform, the rotation of axial-flow windwheel 100 is more stable.
Optionally, it is N that every group of reinforcing rib 11, which includes the number of reinforcing rib 11, and N meets: 1≤N≤5.Thus can not only add
The structure of strong axial-flow windwheel 100, can also simplify the structure of axial-flow windwheel 100, advantageously reduce the weight of axial-flow windwheel 100,
Power of motor is reduced, is improved efficiency.Such as in the example depicted in fig. 1, axial-flow windwheel 100 includes three blades 2, wheel hub 1
Three groups of reinforcing ribs 11 are equipped on axial ends face, every group of reinforcing rib 11 includes a reinforcing rib 11.
Further, every group of reinforcing rib 11 is at the leading edge 21 of corresponding blade 2 and the cooperation of wheel hub 1.Due in axis
During flowing the rotation of wind wheel 100,21 stress of leading edge of blade 2 is maximum, when rotating at high speed, is most susceptible to destruction, makes every
Group reinforcing rib 11 can increase the structural strength of blade 2 at the leading edge 21 of corresponding blade 2 and the cooperation of wheel hub 1, reduce
The probability that blade 2 damages extends the service life of axial-flow windwheel 100.
In some embodiments of the utility model, as shown in Figs. 7-8, the outer edge in the axial ends face of wheel hub 1
It is equipped with the baffle 12 with the centerline axis parallel of wheel hub 1, baffle 12 is circularized along the circumferential direction extension of wheel hub 1.Wheel hub 1
The free end of the baffle 12 of one end in axial ends is equipped with multiple notches 13, and multiple notches 13 are between the circumferential direction of baffle 12
It separates, each notch 13 has the opening being located on corresponding edge close to the edge of baffle 12, and each notch 13 is in baffle
Run through baffle 12 on 12 thickness direction.The free end of the baffle 12 of the other end in the axial ends of wheel hub 1 be equipped with it is multiple with
The protrusive board 14 that notch 13 cooperates, protrusive board 14 protrude from the free end face of baffle 12.
It, can be by multiple axial-flow windwheels 100 along axial direction as a result, in the storage and transportational process of multiple axial-flow windwheels 100
Direction is stacked, and one protrusive board 14 in two neighboring axial-flow windwheel 100 protrudes into another notch 13, can be opposite
The stack height of multiple axial-flow windwheels 100 is reduced, and can prevent two adjacent axial-flow windwheels 100 from relatively rotating, side
Just it stores and transports.
Further, more as shown in fig. 7, the end face that wheel hub 1 is equipped with one end of notch 13 is equipped with multiple positioning bars 15
A positioning bar 15 is corresponded with multiple notches 13, and positioning bar 15 is located at the inside of corresponding notch 13 and the height of positioning bar 15
Higher than the minimum point of notch 13.When multiple axial-flow windwheels 100 are stacked, and one in two adjacent axial-flow windwheels 100
Protrusive board 14 when being located in another notch 13, positioning bar 15 can prevent protrusive board 14 and notch 13 along the radial direction side of wheel hub 1
To relatively moving, facilitate storage and transport.
In some embodiments of the utility model, wheel hub 1 and blade 2 are integrated injection molding part.It is possible thereby to simplify
Assembly process between wheel hub 1 and blade 2 improves assembly efficiency.
Optionally, the outer rim 22 of the blade 2 of axial-flow windwheel 100 can be continuous curve.Certainly, 100 leaf of axial-flow windwheel
2 outer rim 22 of piece is also possible to discontinuous curve, for example can be local step broken line, sawtooth, trapezoidal, waveform etc..
Below with reference to Fig. 1-Fig. 8 description according to the axial-flow windwheel 100 of one specific embodiment of the utility model, it is worth understanding
, described below is exemplary, it is intended to for explaining the utility model, and should not be understood as the limit to the utility model
System.
Embodiment 1
As shown in Figure 1-Figure 3, according to the axial-flow windwheel of the utility model embodiment 100, including wheel hub 1 and three blades 2,
Wherein wheel hub 1 and three blades 2 are integrated injection molded article.
Three blades 2 are evenly spaced on along the circumferential direction of wheel hub 1, and the shape of each blade 2 is identical.Each blade 2
Contour edge include successively end to end leading edge 21, outer rim 22, trailing edge 23 and blade root, blade root connect with wheel hub 1, in wheel hub
In 1 rotation direction (direction w as shown in Figure 2), leading edge 21 is located at the front side of trailing edge 23.
Specifically, as shown in figure 3, each blade 2 in the section in the radial direction of wheel hub 1 by 24 He of the first curved section
Second curved section 25 is constituted, and the inner end of the first curved section 24 is connected to the periphery wall of wheel hub 1, the inner end connection of the second curved section 25
To the outer end of the first curved section 24, the first curved section 24 towards the suction surface 27 close to blade 2 the arc-shaped extension in direction, second
Direction arc-shaped extension of the curved section 25 towards the pressure face 28 close to blade 2.It is not only advantageous to simplify the knot of blade 2 as a result,
Structure, and be conducive to further decrease the leakage of blade tip clearance, improve 2 surface second stream of blade, improves axial-flow windwheel 100 and flow
Amount reduces the loss of axial-flow windwheel 100, reduces by 100 noise of axial-flow windwheel, improves aeroperformance.
Referring to shown in Fig. 2, the plane definition that will be perpendicular to the central axis of wheel hub 1 is plane m, and the periphery wall of wheel hub 1 exists
The radius of circle where orthographic projection in plane m is Rh, and the junction 26 of the first curved section 24 and the second curved section 25 is in plane m
Orthographic projection where circle radius be R1, the outer rim 22 of blade 2 where the orthographic projection in plane m circle radius be Rs, Rh, R1
Meet with Rs: 1.02Rh≤R1≤0.98Rs.As a result, by meeting Rh, R1 and Rs: 1.02Rh≤R1≤0.98Rs has
Conducive to the further leakage for reducing blade tip clearance, improve 2 surface second stream of blade, improve 100 flow of axial-flow windwheel, reduces axis
The loss of wind wheel 100 is flowed, 100 noise of axial-flow windwheel is reduced, improves aeroperformance.
As shown in Figs. 7-8, three groups of reinforcing ribs 11 are equipped on the axial ends face of wheel hub 1, every group of reinforcing rib 11 includes
One reinforcing rib 11, each reinforcing rib 11 extends along the radial direction of wheel hub 1, and every group of reinforcing rib 11 is close to corresponding blade 2
Leading edge 21 and wheel hub 1 cooperation at.Since during axial-flow windwheel 100 rotates, 21 stress of leading edge of blade 2 is maximum,
When rotating at high speed, it is most susceptible to destruction, makes every group of reinforcing rib 11 close to the leading edge 21 of corresponding blade 2 and matching for wheel hub 1
At conjunction, the structural strength of blade 2 can be increased, reduce the probability that blade 2 damages, extend the service life of axial-flow windwheel 100.
The outer edge in the axial ends face of wheel hub 1 is equipped with the baffle 12 with the centerline axis parallel of wheel hub 1, baffle 12
Circumferential direction extension along wheel hub 1 circularizes.The free end of the baffle 12 of 28 side of pressure face of wheel hub 1 is set there are three notch
13, three notches 13 are spaced apart along the circumferential direction of baffle 12, and each notch 13 has close to the edge of baffle 12 and is located at phase
The opening on edge answered, each notch 13 run through baffle 12 on the thickness direction of baffle 12.27 side of suction surface of wheel hub 1
The free end of baffle 12 be equipped with multiple protrusive boards 14 cooperated with notch 13, protrusive board 14 protrudes from the free end face of baffle 12.Its
Middle notch 13 and relief are close at the trailing edge 23 of blade 2 and the cooperation of wheel hub 1, and are spaced apart with reinforcing rib 11.
It, can be by multiple axial-flow windwheels 100 along axial direction as a result, in the storage and transportational process of multiple axial-flow windwheels 100
Direction is stacked, and one protrusive board 14 in two neighboring axial-flow windwheel 100 protrudes into another notch 13, can be opposite
The stack height of multiple axial-flow windwheels 100 is reduced, and can prevent two adjacent axial-flow windwheels 100 from relatively rotating, side
Just it stores and transports.
Further, positioning bar 15 there are three being set on end face of the wheel hub 1 equipped with one end of notch 13, three positioning bars 15
It is corresponded with three notches 13, positioning bar 15 is located at the inside of corresponding notch 13 and the height of positioning bar 15 is higher than notch 13
Minimum point.When multiple axial-flow windwheels 100 are stacked, and protrusive board 14 of one in two adjacent axial-flow windwheels 100
When in another notch 13, it is opposite that positioning bar 15 can prevent protrusive board 14 and notch 13 from occurring along the radial direction of wheel hub 1
It is mobile, facilitate storage and transport.
Embodiment 2
As shown in Figure 4-Figure 6, the present embodiment is substantially the same with embodiment 1, and same parts use identical label, difference
Place is only that, direction arc-shaped extension of first curved section 24 towards the pressure face 28 close to blade 2,25 direction of the second curved section
Close to the arc-shaped extension in direction of the suction surface 27 of blade 2.
According to the air-conditioner outdoor unit of the utility model embodiment, including above-mentioned axial-flow windwheel 100.
According to the air-conditioner outdoor unit of the utility model embodiment, by making the first curved section 24 and the second curved section 25
Extending direction effectively improves axis stream on the contrary, the leakage of blade tip clearance can be effectively reduced, while improving 2 surface second stream of blade
The flow of wind wheel 100, while can reduce the loss of axial-flow windwheel 100,100 noise of axial-flow windwheel is reduced, aeroperformance is improved,
Improve user experience.
According to the air conditioner of the utility model embodiment, including above-mentioned air-conditioner outdoor unit.
According to the air conditioner of the utility model embodiment, by the extension for making the first curved section 24 and the second curved section 25
It is contrary, the leakage of blade tip clearance can be effectively reduced, while improving 2 surface second stream of blade, effectively improve axial-flow windwheel
100 flow, while can reduce the loss of axial-flow windwheel 100,100 noise of axial-flow windwheel is reduced, aeroperformance is improved, is improved
User experience.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art
The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or
Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (11)
1. a kind of axial-flow windwheel characterized by comprising
Wheel hub；With
Multiple blades, the multiple blade are located on the periphery wall of the wheel hub and are spaced each other along the circumferential direction of the wheel hub
It opens, each blade is made of in the section in the radial direction of the wheel hub the first curved section and the second curved section, institute
State the first curved section inner end be connected to the wheel hub periphery wall and first curved section towards close to the blade suction
The direction of one of them in power face and pressure face, which tilts, to be extended, and the inner end of second curved section is connected to first curve
Another direction inclination of the outer end and second curved section direction of section in the suction surface and pressure face of the blade
Extend.
2. axial-flow windwheel according to claim 1, which is characterized in that first curved section is formed as arcuate shape.
3. axial-flow windwheel according to claim 1, which is characterized in that second curved section is formed as arcuate shape.
4. axial-flow windwheel according to claim 1, which is characterized in that will be perpendicular to the plane of the central axis of the wheel hub
It is defined as plane m, the radius of the periphery wall of wheel hub circle where the orthographic projection in the plane m is Rh, and described first is bent
The radius of the junction of line segment and second curved section circle where the orthographic projection in the plane m is R1, the Rh and institute
State R1 satisfaction: 1.02Rh≤R1.
5. axial-flow windwheel according to claim 4, which is characterized in that the outer rim of the blade in the plane m just
The radius of circle where projection is Rs, and the Rh, the R1 and the Rs meet: 1.02Rh≤R1≤0.98Rs.
6. axial-flow windwheel according to claim 1, which is characterized in that at least one of axial ends face of the wheel hub
End face is equipped with the reinforcing rib extended along the radial direction of the wheel hub.
7. axial-flow windwheel according to claim 6, which is characterized in that when the end face of axial one end of the wheel hub is equipped with more
When a reinforcing rib, the reinforcing rib is divided into multiple groups, and reinforcing rib described in multiple groups and multiple blades correspond, every group of institute
The reinforcing rib that reinforcing rib includes identical quantity is stated, and reinforcing rib described in multiple groups is uniformly distributed along the circumferential direction of the wheel hub, when
When reinforcing rib described in every group includes multiple reinforcing ribs, multiple reinforcing ribs in every group are uniformly distributed.
8. axial-flow windwheel according to claim 1, which is characterized in that the outer edge in the axial ends face of the wheel hub is equal
Baffle equipped with the centerline axis parallel with the wheel hub, the baffle are circularized along the circumferential direction extension of the wheel hub, institute
The free end for stating the baffle of one end in the axial ends of wheel hub is equipped with multiple notches, week of multiple notches along the baffle
It is spaced apart to direction, the free end of the baffle of the other end in the axial ends of the wheel hub is equipped with the multiple and notch and cooperates
Protrusive board.
9. axial-flow windwheel according to claim 8, which is characterized in that the wheel hub is equipped with the end of one end of the notch
Face is equipped with multiple positioning bars, and multiple positioning bars and multiple notches correspond, and the positioning bar is located at corresponding
The height of the inside of the notch and the positioning bar is higher than the minimum point of the notch.
10. a kind of air-conditioner outdoor unit, which is characterized in that including axial-flow windwheel according to claim 1 to 9.
11. a kind of air conditioner, which is characterized in that including air-conditioner outdoor unit according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821735174.2U CN208918914U (en) | 2018-10-24 | 2018-10-24 | Axial-flow windwheel, air-conditioner outdoor unit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109083867A (en) * | 2018-10-24 | 2018-12-25 | 美的集团股份有限公司 | Axial-flow windwheel, air-conditioner outdoor unit and air conditioner |
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