CN109058165A - A kind of axial-flow leaf and blower, air-conditioning comprising it - Google Patents
A kind of axial-flow leaf and blower, air-conditioning comprising it Download PDFInfo
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- CN109058165A CN109058165A CN201810904803.8A CN201810904803A CN109058165A CN 109058165 A CN109058165 A CN 109058165A CN 201810904803 A CN201810904803 A CN 201810904803A CN 109058165 A CN109058165 A CN 109058165A
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- intersection point
- axial
- flow
- outer rim
- central angle
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 10
- 230000003447 ipsilateral effect Effects 0.000 claims abstract description 6
- 229920003266 Leaf® Polymers 0.000 claims description 55
- 230000009471 action Effects 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000004887 air purification Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of blower the present invention provides axial-flow leaf and comprising it, air-conditioning, are related to technical field of air purification.For connecting with the wheel hub, the length of the outer rim is greater than the length of the inner edge for the inner edge；By on the rear to the up-front direction, the endpoint of the outer rim is located at before the endpoint of the inner edge ipsilateral with the outer rim endpoint.When air-flow is radially flowed by the inner edge to the outer rim, with the increase of axial-flow leaf radius, the air-flow partially radially flowed described can be blocked by blade, so that radial air-flow conversion route continues to axially rotate, to prevent the air-flow of Radial Flow from causing to disturb to the air-flow axially flowed, the high efficiency of axial-flow leaf is kept, air quantity is big, avoids noise caused by flow perturbation.
Description
Technical field
The present invention relates to technical field of air purification, the blower in particular to a kind of axial-flow leaf and comprising it, sky
It adjusts.
Background technique
Axial-flow leaf is widely used in air-conditioning products since air quantity is big, noise is low, existing axial-flow leaf at work, leaf
Piece rotation allows airflow into the runner formed in blade rotary course, and air-flow is flowed along axial, but simultaneously, the air-flow in runner
By the effect of centrifugal force field, there is fraction radially to flow.The air-flow radially flowed makes the flow perturbation axially flowed
The problem of at axial-flow leaf efficiency, air quantity decline, power increase is reduced；And flow perturbation forms strong disorderly in blade surface
Flow noise.To solve the technical problem that existing axial-flow leaf axial-flow leaf efficiency reduces, air quantity declines, noise is big, this is proposed
Application.
Summary of the invention
A kind of blower the present invention provides axial-flow leaf and comprising it, air-conditioning, it is intended to improve existing axial-flow leaf axis
Flow the problem that fan blade efficiency reduces, air quantity declines, noise is big.
In a first aspect, including wheel hub and the multiple of the hub periphery are arranged in the present invention provides a kind of axial-flow leaf
Blade, each blade include sequentially connected inner edge, leading edge, outer rim and rear, which is characterized in that the inner edge be used for
The wheel hub connection, the length of the outer rim are greater than the length of the inner edge；By on the rear to the up-front direction, institute
The endpoint for stating outer rim is located at before the endpoint of the inner edge ipsilateral with the outer rim endpoint.
Further, in a preferred embodiment of the invention, the outer rim and the up-front intersection point are the first friendship
The intersection point of point, the outer rim and the rear is the second intersection point, and the inner edge and the up-front intersection point are third intersection point, described
The intersection point of inner edge and the rear is the 4th intersection point；By on the rear to the up-front direction, first intersection point is located at
Before the third intersection point, second intersection point is located at before the 4th intersection point.
Further, in a preferred embodiment of the invention, first intersection point, the 4th intersection point and the wheel
The center of circle of circle where hub forms the first central angle, the center of circle of circle where first intersection point, second intersection point and the wheel hub
The second central angle is formed, the center of circle of circle forms third central angle where second intersection point, the 4th intersection point and the wheel hub,
The center of circle of circle forms the 4th central angle where first intersection point, the third intersection point and the wheel hub；First central angle
The second central angle of > > third central angle or the 4th central angle.
Further, in a preferred embodiment of the invention, first central angle are as follows: 75 ° -135 °.
Further, in a preferred embodiment of the invention, the third central angle and the 4th central angle are equal
Are as follows: 25 ° -55 °.
Further, in a preferred embodiment of the invention, second central angle and the third central angle
Ratio are as follows: 1.5-2.5.
Further, in a preferred embodiment of the invention, the center of circle of circle where the wheel hub and the third are handed over
The point that the extended line of point line intersects with the outer rim is the 5th intersection point, and the line of the third intersection point and the 5th intersection point is
First line；Maximum cross-section perpendicular to the blade of the hub axis is frontal plane of projection, on the frontal plane of projection: institute
Stating the area of plane that leading edge, the outer rim and first line surround is S1, the rear, the outer rim and described the
The area of plane that one line surrounds is S2, wherein S1/S2 > 0.5.
Further, in a preferred embodiment of the invention, in the blade radially from the inner edge to institute
It states outer rim and successively equidistantly intercepts multiple curved surfaces, each curved surface forms string between the leading edge and the rear, by institute
State inner edge to the string between the outer rim successively include r0, r1, r2, r3, r4, r5 ... r10, r5 and the leading edge phase
The point of friendship is the 6th intersection point, and the point that r5 intersects with the rear is the 7th intersection point；First intersection point and the third intersection point
Line is the second line, and the line of second intersection point and the 4th intersection point is third line, described in the 6th intersection point arrives
The vertical range of second line is the first action, and the vertical range of the 7th intersection point to the third line is the second action；
Second action=(0.01-0.05) * R, * the second action of the first action=(5-10), wherein R is the axis stream
The radius of fan blade.
Further, in a preferred embodiment of the invention, by each of r0 to the r10 string and perpendicular to institute
The angle for stating the plane of hub axis is followed successively by α 0, α 1, α 2 ... α 10, and the angle first increases in reduction and α 5 value maximum；Its
In, 10 < α of α, 0 < α 5.
Further, in a preferred embodiment of the invention, 0≤70 ° of 35 °≤α, 10≤35 ° of 15 °≤α, 45 °≤α
5≤80°。
Further, in a preferred embodiment of the invention, by each of r0 to the r10 string and perpendicular to institute
The distance for stating maximum cross-section on the blade of hub axis is followed successively by L0, L1, L2 ... L10, and L0 < L1 < L2 ... <
L10。
Further, in a preferred embodiment of the invention, any distance meets: 0.15R < L < 1.5R,
Wherein, R is the radius of the axial-flow leaf.
Further, in a preferred embodiment of the invention, further includes: water fetching structure, the water fetching structure and institute
Outer rim is stated to be connected.
Second aspect, the present invention provides a kind of axial flow blowers, including axial-flow leaf described in any of the above embodiments.
The third aspect, the present invention provides a kind of air-conditionings, including axial-flow leaf described in any of the above embodiments.
A kind of blower the present invention provides axial-flow leaf and comprising it, air-conditioning, air-flow enter runner and flow along axial, by
The length of the outer rim in the application is greater than the length of the inner edge, and by the rear to the up-front direction,
The endpoint of the outer rim is located at before the endpoint of the inner edge ipsilateral with the outer rim endpoint；When air-flow is by the inner edge to institute
It states outer rim radially to flow, with the increase of axial-flow leaf radius, the air-flow partially radially flowed described can be blocked by blade, be made
It obtains radial air-flow conversion route to continue to axially rotate, to prevent the air-flow of Radial Flow from causing the air-flow axially flowed
Disturbance, keeps the high efficiency of axial-flow leaf, air quantity is big, avoids noise caused by flow perturbation.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is the front view for the axial-flow leaf that one embodiment of the invention provides；
Fig. 2 is the front view for the blade that one embodiment of the invention provides；
Fig. 3 is the blade radial schematic diagram that one embodiment of the invention provides；
Fig. 4 is the axial-flow leaf structural schematic diagram that one embodiment of the invention provides；
Fig. 5 is the side structure schematic diagram of Fig. 4；
Appended drawing reference:
1- wheel hub
2- blade
The inner edge 21- 22- leading edge 23- outer rim 24- rear 25- curved surface
The 4th intersection point of A- the first intersection points B the-the second intersection point C- third intersection point D-
The 7th intersection point of the 5th the 6th intersection point F- of intersection point E- of G-
CG- the first line AC- the second line BD- third line
θ 1- the first central angle θ the second central angle of 2-
The 4th central angle of θ 3- third central angle θ 4-
H1- the first action the second action of h2-
3- water fetching structure
Specific embodiment
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the application embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Embodiment 1
A kind of axial-flow leaf that the embodiment of the present invention 1 provides, as shown in Fig. 1,4, including wheel hub 1 and setting are in the wheel hub
Multiple blades 2 of 1 periphery, each blade 2 include sequentially connected inner edge 21, leading edge 22, outer rim 23 and rear 24, spy
Sign is that for connecting with the wheel hub 1, the length of the outer rim 23 is greater than the length of the inner edge 21 for the inner edge 21；By
On the rear 24 to the direction of the leading edge 22, the endpoint of the outer rim 23 be located at 23 endpoint of outer rim it is ipsilateral described in
Before the endpoint of inner edge 21.Air-flow enters runner along axial flowing, since the length of the outer rim 23 in the application is greater than institute
State the length of inner edge 21, and by the rear 24 to the direction of the leading edge 22, the endpoint of the outer rim 23 be located at it is described
Before the endpoint of the ipsilateral inner edge 21 of 23 endpoint of outer rim；When air-flow is radially flowed by the inner edge 21 to the outer rim 23
Dynamic, with the increase of axial-flow leaf radius, the air-flow partially radially flowed can be blocked by the blade 2, so that radial air-flow
Conversion route continues to axially rotate, thus prevent the air-flow of Radial Flow from causing to disturb to the air-flow axially flowed, holding shaft
The high efficiency of fan blade is flowed, air quantity is big, avoids noise caused by flow perturbation.
As shown in Figure 1, the edge that the blade 2 is used to connect with the wheel hub 1 is inner edge 21,2 diameter of blade
It is outer rim 23 to outside edge；One end of one end of the outer rim 23 and the inner edge 21 is connected by the leading edge 22
It connects, and the other end of the outer rim 23 is connect with the other end of the inner edge 21 by the rear 24.
Disturbance is flowed to reduce the radial gas of 2 admission edge 22 of blade, the inlet loss of axial-flow leaf is reduced, in this hair
The intersection point of a kind of axial-flow leaf provided in bright embodiment 1, the outer rim 23 and the leading edge 22 is the first intersection point A, described outer
The intersection point of edge 23 and the rear 24 is the second intersection points B, and the intersection point of the inner edge 21 and the leading edge 22 is third intersection point C, institute
The intersection point for stating inner edge 21 and the rear 24 is the 4th intersection point D；By on the rear 24 to the direction of the leading edge 22, i.e. Fig. 2
Or on direction of rotation shown in arrow shown in 4, the first intersection point A is located at before the third intersection point C, second intersection points B
Before the 4th intersection point D.
In the present embodiment, the center of circle of circle forms first where the first intersection point A, the 4th intersection point D and the wheel hub 1
Central angle θ 1, the center of circle of circle forms the second central angle θ 2 where the first intersection point A, second intersection points B and the wheel hub 1,
The center of circle of circle where second intersection points B, the 4th intersection point D and the wheel hub 1 forms third central angle θ 3, and described first hands over
The center of circle of circle forms the 4th central angle θ 4 where point A, the third intersection point C and the wheel hub 1；First central angle θ, 1 >
Two central angle θ 2 > third central angle θ 3 or the 4th central angle θ 4.
In the present embodiment, the first central angle θ 1 are as follows: 75 ° -135 °.The third central angle θ 3 and the 4th circle
Heart angle θ 4 is equal are as follows: 25 ° -55 °.The ratio of the second central angle θ 2 and third central angle θ 3 are as follows: 1.5-2.5.
Arrangement above, so that blade 2 shifts to an earlier date θ 4 than the direction of rotation shown in the arrow third intersection point C by the first intersection point A,
In this way by under the radius of the different axial-flow leafs of inner edge 21 to outer rim 23, the successive time that air-flow enters 2 runner of blade is different, from
To outer rim 23 as radius increases, the time that air-flow enters 2 runner of blade is more and more early for inner edge 21, close to the blade 2 of outer rim 23
Also the air-flow flowed through can effectively be blocked and axially be flowed convenient for air-flow, to effectively reduce when air-flow enters runner by radial direction
The flow perturbation of flowing reduces the inlet loss of axial-flow leaf, increases air quantity.Blade 2 is by the second intersection points B than the 4th intersection point D
Shift to an earlier date θ 3 along direction of rotation, in this way by under the radius of the different axial-flow leafs of inner edge 21 to outer rim 23, air-flow flows out 2 runner of blade
The successive time it is different, from inner edge 21 to outer rim 23 as radius increases, the time that air-flow flows out 2 runner of blade is more and more early,
Flow perturbation when to reduce air-flow outflow runner by Radial Flow, reduces axial-flow leaf trailing edge turbulent flow, reduces fan blade
Aerodynamic noise.
A kind of axial-flow leaf provided in the embodiment of the present invention 1, the center of circle of circle and the third intersection point where the wheel hub 1
The point that the extended line of C line intersects with the outer rim 23 is the 5th intersection point G, the company of the third intersection point C and the 5th intersection point G
Line is the first line CG；Maximum cross-section perpendicular to the blade 2 of 1 axis of wheel hub (or Z axis) is frontal plane of projection, sees figure
Face ABCD in 2, on the frontal plane of projection: the leading edge 22, the outer rim 23 and the first line CG are surrounded flat
Face area is arc S in S1, i.e. Fig. 2AECG, plane face that the rear 24, the outer rim 23 and the first line CG are surrounded
Product is the face S in S2, i.e. Fig. 2 where arc BDGCDB, wherein S1/S2 > 0.5.The setting of two parts area is set in above-mentioned angle
Under the premise of setting, convenient for further decreasing the inlet loss of axial-flow leaf.
To make blade 2 radially occur rationally to distort, a kind of axial-flow leaf that the embodiment of the present invention 1 provides, such as Fig. 2 institute
Show, successively equidistantly intercepts multiple curved surfaces 25 radially from the inner edge 21 to the outer rim 23 in the blade 2, interception can adopt
It is cut with the cylindrical surface for crossing 1 axis of wheel hub (or crossing Z axis in Fig. 3) of different radii with 2 phase of blade, each curved surface 25 is in institute
It states and forms string between leading edge 22 and the rear 24, successively wrapped by the inner edge 21 to the string the outer rim 23
The r10 that includes r0, r1, r2, r3, r4, r5 ..., the point that r0 intersects with the leading edge 22 are third the intersection point C, r0 and the rear
The point of 24 intersections is the 4th intersection point D；After the point that r10 intersects with the leading edge 22 is the first intersection point A, r10 and is described
The point that edge 24 intersects is second intersection points B；The point that r5 intersects with the leading edge 22 is the 6th intersection point E, r5 and the rear 24
The point of intersection is the 7th intersection point F；The line of the first intersection point A and third intersection point C is the second line AC, and described second hands over
The line of point B and the 4th intersection point D is third line BD, vertical range of the 6th intersection point E to the second line AC
Vertical range for the first action h1, the 7th intersection point F to the third line BD is the second action h2；Second action
H2=(0.01-0.05) * R, the first action h1=(5-10) * h2, wherein R is the radius of the axial-flow leaf.
In the present embodiment, by each of r0 to the r10 string with perpendicular to 1 axis of wheel hub plane angle according to
Secondary is α 0, α 1, α 2 ... α 10, and the angle first increases in reduction and α 5 value maximum, α 5=α max；Wherein, 10 < α of α, 0 < α 5,
α 10=α mi n.
A kind of axial-flow leaf that the embodiment of the present invention 1 provides, 0≤70 ° of 35 °≤α, 10≤35 ° of 15 °≤α, 45 °≤α 5≤
80°。
In the present embodiment, by each of r0 to the r10 string with perpendicular to the described of 1 axis of wheel hub (or Z axis)
The distance of plane where maximum cross-section is followed successively by L0, L1, L2 on blade 2 ... L10, and distance is gradually increased i.e. L0 (min) <
L1 < L2 ... < L10 (max).Any distance meets: 0.15R < L < 1.5R, wherein R is the half of the axial-flow leaf
Diameter.
The setting of above-mentioned each numerical value makes blade 2 radially occur rationally to distort, reduces air-flow after entering 2 runner of blade
And the flow perturbation before outflow 2 runner of blade before different radii, improve fan blade efficiency.
As shown in figure 4, in the axial-flow leaf that the present embodiment 1 provides, further includes: water fetching structure 3, the water fetching structure 3 with
The outer rim 23 is connected.Generated condensed water raises evaporation when water fetching structure 3 is convenient for by air conditioner refrigerating.
Embodiment 2
The embodiment of the present invention 2 provides a kind of axial flow blower, including axial-flow leaf described in any of the above embodiments.
Embodiment 3
The embodiment of the present invention 3 provides a kind of air-conditioning, including axial-flow leaf described in any of the above embodiments.
The embodiment of the present application 1 provide axial-flow leaf be applied to air-conditioning products in, under same rotating speed, it is same load,
15% or more air quantity can be improved under same motor speed, power, which increases, is no more than 6%, and overall efficiency is promoted, and to noise
There is improvement.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (15)
1. a kind of axial-flow leaf, multiple blades (2) including wheel hub (1) and setting in the wheel hub (1) periphery, each leaf
Piece (2) includes sequentially connected inner edge (21), leading edge (22), outer rim (23) and rear (24), which is characterized in that the inner edge
(21) for connecting with the wheel hub (1), the length of the outer rim (23) is greater than the length of the inner edge (21)；By the rear
(24) on the direction of the leading edge (22), the endpoint of the outer rim (23) is located at and ipsilateral described of the outer rim (23) endpoint
Before the endpoint of inner edge (21).
2. a kind of axial-flow leaf according to claim 1, which is characterized in that the outer rim (23) and the leading edge (22)
Intersection point is the first intersection point (A), and the intersection point of the outer rim (23) and the rear (24) is the second intersection point (B), the inner edge (21)
It is third intersection point (C) with the intersection point of the leading edge (22), the intersection point of the inner edge (21) and the rear (24) is the 4th intersection point
(D)；On direction by the rear (24) to the leading edge (22), first intersection point (A) be located at the third intersection point (C) it
Before, second intersection point (B) is located at before the 4th intersection point (D).
3. a kind of axial-flow leaf according to claim 2, which is characterized in that first intersection point, the 4th intersection point and
The center of circle of circle forms the first central angle (θ 1) where the wheel hub (1), first intersection point, second intersection point and the wheel hub
(1) center of circle of circle forms the second central angle (θ 2) where, second intersection point (B), the 4th intersection point (D) and the wheel hub
(1) center of circle of circle forms third central angle (θ 3) where, first intersection point (A), the third intersection point (C) and the wheel hub
(1) center of circle of circle forms the 4th central angle (θ 4) where；First central angle (θ 1) the second central angle of > (θ 2) the > third circle
Heart angle (θ 3) or the 4th central angle (θ 4).
4. a kind of axial-flow leaf according to claim 3, which is characterized in that first central angle (θ 1) are as follows: 75 °-
135°。
5. a kind of axial-flow leaf according to claim 3, which is characterized in that the third central angle (θ 3) and the described 4th
Central angle (θ 4) is equal are as follows: 25 ° -55 °.
6. a kind of axial-flow leaf according to claim 3, which is characterized in that second central angle (θ 2) and the third
The ratio of central angle (θ 3) are as follows: 1.5-2.5.
7. a kind of axial-flow leaf according to claim 3, which is characterized in that the center of circle of circle and institute where the wheel hub (1)
Stating the point that the extended line of third intersection point (C) line intersects with the outer rim (23) is the 5th intersection point (G), the third intersection point (C)
Line with the 5th intersection point (G) is the first line (CG)；Perpendicular to the maximum cross-section of the blade of the hub axis
For frontal plane of projection, on the frontal plane of projection: the leading edge (22), the outer rim (23) and first line are surrounded flat
Face area is S1, and the area of plane that the rear (24), the outer rim (23) and first line surround is S2, wherein
S1/S2 > 0.5.
8. a kind of axial-flow leaf according to claim 2, which is characterized in that in the blade (2) radially from described
Inner edge (21) to the outer rim (23) successively equidistantly intercept multiple curved surfaces (25), and each curved surface (25) is in the leading edge (22)
String is formed between the rear (24), successively includes to the string the outer rim (23) by the inner edge (21)
The point that r0, r1, r2, r3, r4, r5 ... r10, r5 intersect with the leading edge (22) is the 6th intersection point (E), r5 and the rear
(24) point intersected is the 7th intersection point (F)；The line of first intersection point (A) and the third intersection point (C) is the second line
(AC), the line of second intersection point (B) and the 4th intersection point (D) is third line (BD), and the 6th intersection point (E) arrives institute
The vertical range for stating the second line (AC) is the first action (h1), and the 7th intersection point (F) to the third line (BD) is hung down
Straight distance is the second action (h2)；Second action (h2)=(0.01-0.05) the * R, first action (h1)=(5-
10) the * the second action (h2), wherein R is the radius of the axial-flow leaf.
9. a kind of axial-flow leaf according to claim 8, which is characterized in that by each of r0 to the r10 string and hang down
It directly is followed successively by α 0, α 1, α 2 ... α 10 in the angle of the plane of the hub axis, the angle first increases in reduction and 5 value of α
It is maximum；Wherein, 10 < α of α, 0 < α 5.
10. a kind of axial-flow leaf according to claim 9, which is characterized in that 0≤70 ° of 35 °≤α, 10≤35 ° of 15 °≤α,
45°≤α5≤80°。
11. a kind of axial-flow leaf according to claim 8, which is characterized in that by each of r0 to the r10 string and hang down
Directly the distance in maximum cross-section on the blade of the hub axis is followed successively by L0, L1, L2 ... L10, and L0 < L1 <
L2 ... < L10.
12. a kind of axial-flow leaf according to claim 11, which is characterized in that any distance meets: 0.15R < L
< 1.5R, wherein R is the radius of the axial-flow leaf.
13. -12 described in any item a kind of axial-flow leafs according to claim 1, which is characterized in that further include: water fetching structure
(3), the water fetching structure (3) is connected with the outer rim (23).
14. a kind of axial flow blower, which is characterized in that including the described in any item axial-flow leafs of claim 1-13.
15. a kind of air-conditioning, which is characterized in that including the described in any item axial-flow leafs of claim 1-13.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810904803.8A CN109058165B (en) | 2018-08-09 | 2018-08-09 | Axial flow fan blade and fan and air conditioner comprising same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810904803.8A CN109058165B (en) | 2018-08-09 | 2018-08-09 | Axial flow fan blade and fan and air conditioner comprising same |
Publications (2)
| Publication Number | Publication Date |
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| CN109058165A true CN109058165A (en) | 2018-12-21 |
| CN109058165B CN109058165B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810904803.8A Active CN109058165B (en) | 2018-08-09 | 2018-08-09 | Axial flow fan blade and fan and air conditioner comprising same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294265A (en) * | 2021-12-30 | 2022-04-08 | 广东美的白色家电技术创新中心有限公司 | Wind wheel structure and fan |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895838A (en) * | 2014-03-05 | 2015-09-09 | 珠海格力电器股份有限公司 | Axial flow blade and axial flow fan |
| CN104948494A (en) * | 2015-07-07 | 2015-09-30 | 珠海格力电器股份有限公司 | Axial flow fan and window type air conditioner |
| CN208778341U (en) * | 2018-08-09 | 2019-04-23 | 珠海格力电器股份有限公司 | A kind of axial-flow leaf and blower, air-conditioning comprising it |
-
2018
- 2018-08-09 CN CN201810904803.8A patent/CN109058165B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895838A (en) * | 2014-03-05 | 2015-09-09 | 珠海格力电器股份有限公司 | Axial flow blade and axial flow fan |
| CN104948494A (en) * | 2015-07-07 | 2015-09-30 | 珠海格力电器股份有限公司 | Axial flow fan and window type air conditioner |
| CN208778341U (en) * | 2018-08-09 | 2019-04-23 | 珠海格力电器股份有限公司 | A kind of axial-flow leaf and blower, air-conditioning comprising it |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294265A (en) * | 2021-12-30 | 2022-04-08 | 广东美的白色家电技术创新中心有限公司 | Wind wheel structure and fan |
| CN114294265B (en) * | 2021-12-30 | 2023-11-03 | 广东美的白色家电技术创新中心有限公司 | Wind wheel structure and fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109058165B (en) | 2024-05-03 |
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