CN107100890A - Axial-flow windwheel and the air conditioner with it - Google Patents
Axial-flow windwheel and the air conditioner with it Download PDFInfo
- Publication number
- CN107100890A CN107100890A CN201710452620.2A CN201710452620A CN107100890A CN 107100890 A CN107100890 A CN 107100890A CN 201710452620 A CN201710452620 A CN 201710452620A CN 107100890 A CN107100890 A CN 107100890A
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- Prior art keywords
- axial
- circle
- reference cylinder
- blade
- wheel hub
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Classifications
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- 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
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
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- 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
- F04D29/34—Blade mountings
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- 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
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
Abstract
The invention discloses a kind of axial-flow windwheel and the air conditioner with it, axial-flow windwheel includes wheel hub and more blades.The rotation centerline of wheel hub is straight line m, and the cylinder of line is circle of reference cylinder centered on straight line m, and the radius of circle of reference cylinder is r.More blades are connected with wheel hub and are spaced apart along the circumferential direction of wheel hub, and the section of circle of reference cylinder and blade is curved surface P, and there is curved surface P point A and point B, point A and point B line to be middle string of a musical instrument AB.Angle between middle string of a musical instrument AB and straight line m is θ, and from the radially inner side of circle of reference cylinder to the radially outer direction of circle of reference cylinder, θ gradually increases.According to the axial-flow windwheel of the present invention, by the change for constraining angle, θ between the middle string of a musical instrument AB of axial-flow leaf and wheel hub rotation centerline, axial-flow leaf can be made to possess higher anti-static pressure ability, it ensure that under the larger operating mode of pressure drop, axial-flow leaf, which remains unchanged, can provide higher air quantity, make the cooling and warming ability of air conditioner and will not significantly decay.
Description
Technical field
The present invention relates to air conditioner technical field, specifically, more particularly to a kind of axial-flow windwheel and the air-conditioning with it
Device.
Background technology
In correlation technique, air conditioner axial-flow leaf and is changed due to long-play or when some special operation conditions work
Hot device surface can be covered with dust all over or frosting freezes, and cause the load increase that air conditioner is required when running, the rotation of axial-flow leaf
Resistance increases so that the cooling and warming ability of air-conditioning is greatly lowered, and influences Consumer's Experience sense.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.Therefore, the present invention proposes a kind of sky
Device is adjusted, the axial-flow windwheel has the advantages that simple in construction, performance is high.
The present invention also proposes a kind of air conditioner, and the air conditioner has air conditioner as described above.
Axial-flow windwheel according to embodiments of the present invention, including：Wheel hub, the rotation centerline of the wheel hub is straight line m, with institute
The cylinder for stating line centered on straight line m is circle of reference cylinder, and the radius of the circle of reference cylinder is r；More blades, leaf described in multi-disc
Piece is connected with the wheel hub and is spaced apart along the circumferential direction of the wheel hub, the section of the circle of reference cylinder and the blade
For curved surface P, the curved surface P there is point A and point B, the point A and the point B line to be middle string of a musical instrument AB；The middle string of a musical instrument AB with
Angle between the straight line m is θ, from the radially inner side of the circle of reference cylinder to the radial outside side of the circle of reference cylinder
Upwards, the θ gradually increases.
Axial-flow windwheel according to embodiments of the present invention, by constrain axial-flow leaf middle string of a musical instrument AB and wheel hub rotation centerline it
Between angle, θ change, axial-flow leaf can be made to possess higher anti-static pressure ability, be ensure that in the larger operating mode of pressure drop
Under, axial-flow leaf, which remains unchanged, can provide higher air quantity, make the cooling and warming ability of air conditioner and will not significantly decay, so that
The comfortable experience sense of user can be ensured.
According to some embodiments of the present invention, the θ is met：25°≤θ≤75°.When θ value is 25 °, 75 ° or 25 °
With 75 ° in the range of any one value when, axial-flow leaf possesses anti-static pressure ability.
In some embodiments of the invention, the θ is met：40°≤θ≤60°.When θ value is 40 °, 60 ° or 40 °
With 60 ° in the range of any one value when, axial-flow leaf possesses higher anti-static pressure ability.
In other embodiments of the present invention, the θ is met：50°≤θ≤55°.Experiments verify that, when the model of θ value
Enclose for 50 °≤θ≤55 °, the anti-static pressure ability that axial-flow leaf possesses can be right efficiently against dust on axial-flow leaf or frost
The pressure that axial-flow leaf applies, thus, axial-flow leaf can provide enough air quantity to meet user's request.
According to the other embodiment of the present invention, excessively described middle string of a musical instrument AB and the plane parallel with the straight line m are reference
The view field of face Q, the curved surface P on the plane of reference Q is strip, and the Breadth Maximum of the strip is h, from described
In the radially inner side of circle of reference cylinder to the radially outer direction of the circle of reference cylinder, the h is gradually reduced.Thus, it is possible to
Axial-flow leaf is possessed higher anti-static pressure ability, ensure that under the larger operating mode of pressure drop, axial-flow leaf, which remains unchanged, to be carried
For higher air quantity.
According to the still other embodiments of the present invention, the leading edge of the blade is the song at any point on curve, and the curve
Rate is centrally located at the same side of the leading edge.So as to ensure blade ventilation while effectively reduce air-flow for
The resistance of blade, and then the power of axial-flow leaf is reduced, improve the Energy Efficiency Ratio of axial-flow leaf.
According to some embodiments of the present invention, the trailing edge of the blade, should at least to have on curve, and the curve at 2 points
2 points of the center of curvature is located at the both sides of the trailing edge.Thus, it is possible to avoid at blade tip be vortexed formation, so as to up to
To the effect of good reduction noise.
According to other embodiments of the present invention, the blade is three.Thus, the action effect of three blades can expire
Sufficient user's request, and can be with cost-effective and installation procedure.
According to the other embodiment of the present invention, the blade and the wheel hub clamping.Thus, it is possible to which blade is connected to
On wheel hub.
Air conditioner according to embodiments of the present invention, including the as above axial-flow windwheel described in any one.
Air conditioner according to embodiments of the present invention, by constrain the middle string of a musical instrument AB of axial-flow leaf and wheel hub rotation centerline it
Between angle, θ change, axial-flow leaf can be made to possess higher anti-static pressure ability, be ensure that in the larger operating mode of pressure drop
Under, axial-flow leaf, which remains unchanged, can provide higher air quantity, make the cooling and warming ability of air conditioner and will not significantly decay, so as to
To ensure the comfortable experience sense of user.
Brief description of the drawings
The above-mentioned and additional aspect and advantage of the present invention will become bright from description of the accompanying drawings below to embodiment is combined
Show and be readily appreciated that, wherein：
Fig. 1 is the structural representation of the axial-flow windwheel of basic inventive embodiments；
Fig. 2 is the structural representation of the axial-flow windwheel of basic inventive embodiments；
Fig. 3 is perspective view of the section of the blade of the axial-flow windwheel of basic inventive embodiments on plane of reference Q；
Fig. 4 is perspective view of the section of the blade of the axial-flow windwheel of basic inventive embodiments on plane of reference Q；
Fig. 5 is perspective view of the section of the blade of the axial-flow windwheel of basic inventive embodiments on plane of reference Q；
Fig. 6 is perspective view of the section of the blade of the axial-flow windwheel of basic inventive embodiments on plane of reference Q.
Reference：
Axial-flow windwheel 1,
Wheel hub 11,
Blade 12, leading edge 121, trailing edge 122,
Circle of reference cylinder 13.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " thickness ", " on ", " under ", " interior ", " outer ",
The orientation or position relationship of the instructions such as " counterclockwise ", " circumference " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, defining " first ", " second "
Feature can express or implicitly include one or more this feature.In the description of the invention, unless otherwise saying
Bright, " multiple " are meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Axial-flow windwheel 1 according to embodiments of the present invention and air conditioner with it are described below with reference to Fig. 1-Fig. 6.
As Figure 1-Figure 2, axial-flow windwheel 1 includes wheel hub 11 and more blades 12.
Specifically, as Figure 1-Figure 2, the rotation centerline of wheel hub 11 is straight line m, the post of line centered on straight line m
Face is circle of reference cylinder 13, and the radius of circle of reference cylinder 13 is r.It is understood that the center line and wheel of circle of reference cylinder 13
The rotation centerline of hub 11 on the same line, circle of reference cylinder 13 is cut with straight line m vertical plane, and cut surface is formed as reference
Circle, the radius of circle of reference is r.For example, as shown in Fig. 2 the circle of reference cylinder 13 where more blades 12 is the 4th reference cylinder
Circle of reference cylinder 13 where face, wheel hub 11 is the first circle of reference cylinder, the first circle of reference cylinder and the 4th circle of reference cylinder it
Between there is the second circle of reference cylinder and the 3rd circle of reference cylinder, the distance of the second circle of reference cylinder to the first circle of reference cylinder and the
The distance of three circle of reference cylinders to the second circle of reference cylinder is equal, " distance " mentioned herein refer to circle of reference radial direction away from
From.
As shown in Fig. 2 the radius of the first circle of reference cylinder is r1, the radius of the second circle of reference cylinder is r2, the 3rd reference
The radius on the face of cylinder is r3, and the radius of the 4th circle of reference cylinder is r4, from the first circle of reference cylinder to the 4th circle of reference cylinder
On direction, radius gradually increases, i.e. r4>r3>r2>r1.
As Figure 1-Figure 2, more blades 12 are connected with wheel hub 11 and are spaced apart along the circumferential direction of wheel hub 11, example
Such as, as shown in Figure 1 and Figure 2, axial-flow windwheel 1 has three blades 12, circumferential direction distribution of three blades 12 along wheel hub 11 and
The interval of three blades 12 between any two is uniform.The section of circle of reference cylinder 13 and blade is curved surface P, and curved surface P has point A and point
B, point A and point B line are middle string of a musical instrument AB.
For example, blade 12 has relative a first surface and second surface, first surface and second surface are relative and first
Surface is located at the top of second surface, and the first circle of reference cylinder is crossed to form curved surface P with blade 12, and curved surface P includes curve a and song
Line b, curve a are the intersecting lens of first surface and the first circle of reference cylinder, and curve b is second surface and the first circle of reference cylinder
Intersecting lens.Curve a includes terminal A 1 and terminal A 2, and terminal A 1 and terminal A 2 are located at curve a two ends respectively.Curve b includes end
Point B1 and terminal B 2, terminal B 1 and terminal B 2 are located at curve b two ends respectively.Terminal A 1 is close to terminal B 1, and terminal A 2 is close to end
Point B2, the midpoint of the line of terminal A 1 and terminal B 1 is point A, and the midpoint of terminal A 2 and the line of terminal B 2 is point B, tie point A
Line segment with point B is middle string of a musical instrument AB.
As shown in figures 3 to 6, the angle between middle string of a musical instrument AB and straight line m is θ, from the radially inner side of circle of reference cylinder 13 to
In the radially outer direction of circle of reference cylinder 13, θ gradually increases.It should be noted that middle string of a musical instrument AB and straight line m be located at it is different
In plane, it is θ that middle string of a musical instrument AB is moved to the acute angle being crossed to form with straight line m.θ variation tendency and the half of circle of reference cylinder 13
The variation tendency in footpath is related, and with increase of the radius of circle of reference cylinder 13 for r, θ gradually increases.For example, such as Fig. 3-Fig. 6 institutes
Show, on the first circle of reference cylinder to the direction of the 4th circle of reference cylinder, r gradually increases, and θ also gradually increases.
String of a musical instrument AB revolves with wheel hub 11 in axial-flow windwheel 1 according to embodiments of the present invention, the section by limiting axial-flow leaf
Turn the change of the angle, θ between center line, axial-flow leaf can be made to possess higher anti-static pressure ability, ensure that pressure drop compared with
Under big operating mode, axial-flow leaf, which remains unchanged, can provide higher air quantity, make the cooling and warming ability of air conditioner will not be significantly
Decay, thereby may be ensured that the comfortable experience sense of user.
According to some embodiments of the present invention, θ value can be：25°≤θ≤75°.When θ value be 25 °, 75 ° or
25 ° with 75 ° in the range of any one value when, axial-flow leaf possesses anti-static pressure ability.Further, θ span need to expire
Foot：40°≤θ≤60°.That is, when θ value be 40 °, 60 ° or 40 ° with 60 ° in the range of any one value when, axle stream
Fan blade possesses higher anti-static pressure ability.Experiments verify that, when θ span is：During 50 °≤θ≤55 °, axial-flow leaf tool
The pressure that standby anti-static pressure ability can apply efficiently against dust on axial-flow leaf or frost to axial-flow leaf, thus, axle
Stream fan blade can provide enough air quantity to meet user's request.
As shown in figures 3 to 6, according to the other embodiment of the present invention, middle string of a musical instrument AB was taken and parallel with straight line m flat
Face is plane of reference Q, and view fields of the curved surface P on plane of reference Q is strip, and the Breadth Maximum of strip is h, from reference cylinder
In the radially inner side in face 13 to the radially outer direction of circle of reference cylinder 13, h is gradually reduced.It is understood that curved surface P is in ginseng
Examine the perspective plane on the Q of face and forming curves a ' and curve b ', curve a ' are projected on plane of reference Q for mapping face R, curve a and curve b
The maximum of distance is h between curve b ', from the radially inner side of circle of reference cylinder 13 to the radial outside of circle of reference cylinder 13
On direction, i.e., from the first circle of reference cylinder to the direction of the 4th circle of reference cylinder, h is gradually reduced.Thus, it is possible to make axle stream wind
Leaf possesses higher anti-static pressure ability, ensure that under the larger operating mode of pressure drop, and axial-flow leaf, which remains unchanged, can provide higher
Air quantity.
As Figure 1-Figure 2, according to the still other embodiments of the present invention, the leading edge 121 of blade 12 is curve, and the curve
The center of curvature at upper any point is located at the same side of leading edge 121.It is understood that each area of the leading edge 121 of blade 12
Between Duan Jun be that the curve bearing of trend of curved section and every section of curved section is respectively positioned on the same side of leading edge 121.For example, as shown in Figure 1, Figure 2
Shown, blade 12 is shaped as sickleshaped, and the leading edge 121 of blade 12 is recessed to trailing edge 122, the song at any point in leading edge 121
Rate is centrally located at the front side (front direction as shown in Figure 2) in the counter clockwise direction of leading edge 121.Thus, it is possible to ensure blade
Effectively reduce resistance of the air-flow for blade 12 while 12 ventilation, and then reduce the power of axial-flow leaf, improve
The Energy Efficiency Ratio of axial-flow leaf.
As Figure 1-Figure 2, according to some embodiments of the present invention, the trailing edge 122 of blade 12 is on curve, and the curve
At least have at 2 points, 2 points of the center of curvature is located at the both sides of trailing edge 122.It is understood that the leading edge 121 of blade 12
Each segment be at least exist in curved section and multistage curved section two sections of curved sections curve bearing of trend it is different.For example,
As shown in Figure 1 and Figure 2, blade 12 is shaped as sickleshaped, and the trailing edge undulate of blade 12, the trailing edge of blade 12 can be divided into
Three sections, the center of curvature at any point is located at the rear side in the counter clockwise direction of leading edge 121 (after as shown in Figure 2 on interlude
Direction), the front side that the center of curvature at remaining two sections upper any point is located in the counter clockwise direction of leading edge 121 is (as shown in Figure 2
Front direction).Thus, it is possible to the formation that the peripheral region of blade 12 is vortexed be avoided, so as to reach the effect of reduction noise well.
As Figure 1-Figure 2, according to other embodiments of the present invention, blade 12 can be three.For example, such as Fig. 1, figure
Shown in 2, axial-flow windwheel 1 has three blades 12, circumferential direction distribution and three piece blades 12 of three blades 12 along wheel hub 11
Interval between any two is uniform.Thus, the action effect of three blades 12 can meet user's request, and can be with cost-effective
And installation procedure.
According to the other embodiment of the present invention, blade 12 can be with clamping with wheel hub 11.For example, can be provided with blade 12
Clamping projection, clamping projection includes projection portion and Access Division and projection portion and Access Division connection, the bearing of trend and card in projection portion
The bearing of trend of socket part is different, and clamping groove can be provided with wheel hub 11, and clamping projection can be through card in the presence of external force
Groove is connect, Access Division can be limited in clamping groove, projection portion is passed through to be located at outside clamping groove and and clamping after clamping groove
One end of groove offsets.Thus, it is possible to blade 12 is connected on wheel hub 11, and assembling process is simple, difficult for drop-off.
Air conditioner according to embodiments of the present invention, including the as above axial-flow windwheel 1 of any one.
Air conditioner according to embodiments of the present invention, by the middle string of a musical instrument AB and the rotation centerline of wheel hub 11 that constrain axial-flow leaf
Between angle, θ change, axial-flow leaf can be made to possess higher anti-static pressure ability, be ensure that in the larger operating mode of pressure drop
Under, axial-flow leaf, which remains unchanged, can provide higher air quantity, make the cooling and warming ability of air conditioner and will not significantly decay, so as to
To ensure the comfortable experience sense of user.
The air conditioner according to the present invention is described in detail below with reference to Fig. 1-Fig. 6.It is worth understanding, it is described below only to show
Example property explanation, rather than to the concrete restriction of the present invention.
Air conditioner includes housing, axial-flow windwheel 1, motor, evaporator and fastening assembly etc..Wherein, axial-flow windwheel 1 includes wheel
Hub 11 and more blades 12.
Specifically, as Figure 1-Figure 2, axial-flow windwheel 1 has three blades 12, and three blades 12 are along wheel hub 11
Circumferential direction is distributed and the interval of three blades 12 between any two is uniform.It can be set on blade 12 and the clamping of wheel hub 11, blade 12
Have a clamping projection, clamping projection includes projection portion and Access Division and projection portion and Access Division connection, the bearing of trend in projection portion and
The bearing of trend of Access Division is different, and clamping groove can be provided with wheel hub 11, and clamping projection can be passed through in the presence of external force
Clamping groove, Access Division can be limited in clamping groove, projection portion pass through be located at after clamping groove clamping groove it is outer and with card
The one end for connecing groove offsets.
As shown in Fig. 2 the rotation centerline of wheel hub 11 is straight line m, the cylinder of line is circle of reference cylinder centered on straight line m
13, the radius of circle of reference cylinder 13 is r.It is understood that the pivot of the center line of circle of reference cylinder 13 and wheel hub 11
Line on the same line, circle of reference cylinder 13 is cut with straight line m vertical plane, and cut surface is formed as circle of reference, the half of circle of reference
Footpath is r.
As shown in Fig. 2 the circle of reference cylinder 13 where more blades 12 is the 4th circle of reference cylinder, the ginseng where wheel hub 11
The face of cylinder 13 is examined for the first circle of reference cylinder, there is the second reference cylinder between the first circle of reference cylinder and the 4th circle of reference cylinder
Face and the 3rd circle of reference cylinder, distance and the 3rd circle of reference cylinder to second of the second circle of reference cylinder to the first circle of reference cylinder
The distance of circle of reference cylinder is equal, and " distance " mentioned herein refers to circle of reference radial direction distance.
The radius of first circle of reference cylinder is r1, and the second circle of reference cylinder A radius is r2, the 3rd circle of reference cylinder A's
Radius is r3, and the 4th circle of reference cylinder A radius is r4, from the first circle of reference cylinder to the direction of the 4th circle of reference cylinder,
Radius gradually increases, i.e. r4>r3>r2>r1.
Blade 12 has relative a first surface and second surface, and first surface and second surface be relative and first surface position
In the top of second surface, the first circle of reference cylinder is crossed to form curved surface P with blade 12, and curved surface P includes curve a and curve b, bent
Line a is the intersecting lens of first surface and the first circle of reference cylinder, and curve b intersects for second surface and the first circle of reference cylinder
Line.Curve a includes terminal A 1 and terminal A 2, and terminal A 1 and terminal A 2 are located at curve a two ends respectively.Curve b includes terminal B 1
With terminal B 2, terminal B 1 and terminal B 2 are respectively positioned at curve b two ends.Terminal A 1 close to terminal B 1, terminal A 2 close to terminal B 2,
The midpoint of the line of terminal A 1 and terminal B 1 is point A, and the midpoint of terminal A 2 and the line of terminal B 2 is point B, tie point A and point B
Line segment be middle string of a musical instrument AB.
As shown in figures 3 to 6, the angle between middle string of a musical instrument AB and straight line m is θ, from the radially inner side of circle of reference cylinder 13 to
In the radially outer direction of circle of reference cylinder 13, θ gradually increases.It should be noted that middle string of a musical instrument AB and straight line m be located at it is different
In plane, it is θ that middle string of a musical instrument AB is moved to the acute angle being crossed to form with straight line m.θ variation tendency and the half of circle of reference cylinder 13
The variation tendency in footpath is related, and with increase of the radius of circle of reference cylinder 13 for r, θ gradually increases.When θ span is：
During 50 °≤θ≤55 °, the anti-static pressure ability that axial-flow leaf possesses can be efficiently against dust on axial-flow leaf or frost to axle
Flow the pressure that fan blade applies.
As shown in figures 3 to 6, took middle string of a musical instrument AB and the plane parallel with straight line m is plane of reference Q, blade 12 is in the plane of reference
View field on Q is strip, and the Breadth Maximum of strip is h, from the radially inner side of circle of reference cylinder 13 to reference cylinder
In the radially outer direction in face 13, h is gradually reduced.It is understood that blade 12 and plane of reference Q is crossed to form mapping face R, reflect
Face R profile is penetrated for the strip with radian, the maximum of distance is h between two relative long sides on strip.
As shown in figures 3 to 6, according to the other embodiment of the present invention, middle string of a musical instrument AB was taken and parallel with straight line m flat
Face is plane of reference Q, and maximum gauges of the curved surface P on plane of reference Q is h, from the radially inner side of circle of reference cylinder 13 to reference cylinder
In the radially outer direction in face 13, h is gradually reduced.It is understood that perspective planes of the curved surface P on plane of reference Q is mapping face
R, curve a and curve b project forming curves a ' and curve b ' on plane of reference Q, the maximum of distance between curve a ' and curve b '
It is worth for h, from the radially inner side of circle of reference cylinder 13 to the radially outer direction of circle of reference cylinder 13, i.e., from the first reference cylinder
Face is on the direction of the 4th circle of reference cylinder, and h is gradually reduced.
As shown in Figure 1 and Figure 2, the leading edge 121 of blade 12 is located at for the center of curvature at any point on curve, and the curve
The same side of leading edge 121.It is understood that each segment of the leading edge 121 of blade 12 is curved section and every section of curve
The curve bearing of trend of section is respectively positioned on the same side of leading edge 121.Blade 12 is shaped as sickleshaped, the leading edge 121 of blade 12 to
Trailing edge is recessed, and the front side that the center of curvature at any point is located in the counter clockwise direction of leading edge 121 in leading edge 121 is (as shown in Figure 2
Front direction).
As shown in Figure 1 and Figure 2, the trailing edge 122 of blade 12 is at least the presence of, 2 points of the song on curve, and the curve at 2 points
Rate is centrally located at the both sides of trailing edge 122.It is understood that each segment of the leading edge 121 of blade 12 be curved section and
The curve bearing of trend that at least there is two sections of curved sections in multistage curved section is different.Blade 12 is shaped as sickleshaped, blade 12
Trailing edge undulate, the trailing edge of blade 12 can be divided into three sections, and the center of curvature at any point is located at leading edge 121 on interlude
Counter clockwise direction on rear side (rear as shown in Figure 2 to), the centers of curvature at remaining two sections upper any point are located at leading edge
Front side (front direction as shown in Figure 2) in 121 counter clockwise direction.
Air conditioner according to embodiments of the present invention, by the middle string of a musical instrument AB and the rotation centerline of wheel hub 11 that constrain axial-flow leaf
Between angle, θ change, axial-flow leaf can be made to possess higher anti-static pressure ability, be ensure that in the larger operating mode of pressure drop
Under, axial-flow leaf, which remains unchanged, can provide higher air quantity, make the cooling and warming ability of air conditioner and will not significantly decay, so as to
To ensure the comfortable experience sense of user.
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 to combine specific features, the knot that the embodiment or example are described
Structure, material or feature are contained at least one embodiment of the present invention or example.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can in an appropriate manner be combined in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of axial-flow windwheel, it is characterised in that including：
Wheel hub, the rotation centerline of the wheel hub is straight line m, and the cylinder of line is circle of reference cylinder, institute centered on the straight line m
The radius for stating circle of reference cylinder is r；
More blades, blade described in multi-disc is connected with the wheel hub and is spaced apart along the circumferential direction of the wheel hub, the ginseng
The section for examining the face of cylinder and the blade is curved surface P, and the curved surface P has point A and point B, the point A and the point B line
For middle string of a musical instrument AB；
Angle between the middle string of a musical instrument AB and the straight line m is θ, from the radially inner side of the circle of reference cylinder to the reference
In the radially outer direction on the face of cylinder, the θ gradually increases.
2. axial-flow windwheel according to claim 1, it is characterised in that the θ is met：25°≤θ≤75°.
3. axial-flow windwheel according to claim 2, it is characterised in that the θ is met：40°≤θ≤60°.
4. axial-flow windwheel according to claim 2, it is characterised in that the θ is met：50°≤θ≤55°.
5. axial-flow windwheel according to claim 1, it is characterised in that excessively described middle string of a musical instrument AB and parallel with the straight line m
Plane be that view fields of the plane of reference Q, the curved surface P on the plane of reference Q is strip, the maximum of the strip is wide
Spend for h, from the radially inner side of the circle of reference cylinder to the radially outer direction of the circle of reference cylinder, the h gradually subtracts
It is small.
6. axial-flow windwheel according to claim 1, it is characterised in that the leading edge of the blade is on curve, and the curve
The center of curvature at any point is located at the same side of the leading edge.
7. axial-flow windwheel according to claim 1, it is characterised in that the trailing edge of the blade is on curve, and the curve
At least have at 2 points, 2 points of the center of curvature is located at the both sides of the trailing edge.
8. axial-flow windwheel according to claim 1, it is characterised in that the blade is three.
9. axial-flow windwheel according to claim 1, it is characterised in that the blade and the wheel hub clamping.
10. a kind of air conditioner, it is characterised in that including the axial-flow windwheel according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710452620.2A CN107100890A (en) | 2017-06-15 | 2017-06-15 | Axial-flow windwheel and the air conditioner with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710452620.2A CN107100890A (en) | 2017-06-15 | 2017-06-15 | Axial-flow windwheel and the air conditioner with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107100890A true CN107100890A (en) | 2017-08-29 |
Family
ID=59659865
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710452620.2A Pending CN107100890A (en) | 2017-06-15 | 2017-06-15 | Axial-flow windwheel and the air conditioner with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100890A (en) |
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