CN106015104B - Air conditioner, axial flow blower and its stator blade - Google Patents
Air conditioner, axial flow blower and its stator blade Download PDFInfo
- Publication number
- CN106015104B CN106015104B CN201610550856.5A CN201610550856A CN106015104B CN 106015104 B CN106015104 B CN 106015104B CN 201610550856 A CN201610550856 A CN 201610550856A CN 106015104 B CN106015104 B CN 106015104B
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- CN
- China
- Prior art keywords
- lug boss
- air
- flow
- blade body
- axial flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
- F04D29/544—Blade shapes
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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
- F04D29/66—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
- F04D29/663—Sound attenuation
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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
- F04D29/66—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
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
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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
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0029—Axial fans
Abstract
The present invention provides a kind of air conditioner, axial flow blower and its stator blades, wherein the stator blade of axial flow blower includes blade body and lug boss, and specifically, blade body has in the pressure face of inner concavity and the suction surface in outer gibbosity, and blade body has leading edge and rear；Lug boss is arranged at the rear of blade body, and lug boss is protruded to the pressure surface side of blade body；The stator blade for the axial flow blower that this programme provides, it can be achieved to lead the air-flow at the air outlet of axial flow blower directly, and can contain the segregation phenomenon being happened at axial flow blower air outlet, reduce Trailing Edge Loss, realizes the kinetic energy rejection for reducing air-flow and reduce the purpose of pneumatic noise.
Description
Technical field
The present invention relates to air-conditioning equipment field, in particular to a kind of stator blade of axial flow blower, a kind of axial flow blower and
A kind of air conditioner.
Background technology
Existing indoor unit especially cabinet-type air conditioner generally uses centrifugal blower or cross flow fan as wind pushing mechanism, but with right
Deepening continuously for air conditioning performance, structure etc. designs and product quality requirement is gradually increased, and axial flow blower is efficient with it
The advantages such as rate, Wind Volume enter the sight of research staff.But it finds through practice, is applied in cabinet air-conditioner when by axial flow blower
When, as shown in Figure 1, movable vane is located at the sides B' of the positions D', stator blade is located at the sides A' of the positions D', and air is from the sides B' to A' effluents
It is dynamic, wherein at the P1' of position, that is, at the posterior border position that corresponds to the stator blade of axial flow blower, to will produce larger Trailing Edge Loss, no
Air-flow velocity can only be reduced and will produce noise, in addition, as shown in Figure 1, at the P2' of position, that is, after corresponding to axial flow blower stator blade
The downstream position of edge, air-flow will appear significantly left avertence situation, this, which cannot obviously meet in existing cabinet air-conditioner, is directed to out
Implication stream must be perpendicular to air outlet and project this design requirement, cause at the air outlet remote position apart from cabinet air-conditioner
Wind sense unobvious or calm sense, it is left and when being used in non-cabinet air-conditioner such as air-conditioner outdoor unit, clarifier for axial flow blower
Bias current cognition causes noise problem with air duct collision, and a large amount of left avertence fluids can cause turbulent flow phenomenon with axial flow of fluid collision, this
It is easy to increase noise effect, and the flow of axial flow of fluid can be correspondingly reduced, the air output of cabinet air-conditioner is caused to decline.
Invention content
At least one in order to solve the above-mentioned technical problem, it is an object of the present invention to provide a kind of the quiet of axial flow blower
Leaf.
It is another object of the present invention to provide a kind of axial flow blowers.
It is yet a further object of the present invention to provide a kind of air conditioners.
To achieve the above object, the embodiment of first aspect present invention provides a kind of stator blade of axial flow blower, including：Leaf
Sheet body has in the pressure face of inner concavity and the suction surface in outer gibbosity, and the blade body has leading edge and rear；Lug boss,
It is arranged at the rear of the blade body, and the lug boss is protruded to the pressure surface side of the blade body.
It is understood that axial flow blower includes movable vane and stator blade, movable vane is rotated by motor driving to drive air
Flowing, stator blade are still in the downstream side of opposite movable vane, and the leading edge of the blade body of stator blade is located at relatively close movable vane on blade body
Side, the rear of the blade body of stator blade are located at the side that movable vane is relatively distant from blade body, and fluid is along the surface of blade body from leaf
The leading edge of sheet body is flowed to the rear of blade body, and blade body is for being cut, being accelerated and being expanded to the air-flow blown from movable vane
Pressure.
The stator blade of axial flow blower provided by the invention, the side with pressure face is pressure surface side on the blade body of stator blade,
The side with suction surface is suction surface side on blade body, wherein setting lug boss is protruded to pressure surface side, in axial flow blower
Air outlet before formed convergence structure, when air-flow is along the axial movement of stator blade and meets with lug boss, utilize air-flow along protrusion
The attached wall effect in portion can be such that air-flow is flowed along the protrusion surface of lug boss, to make the flow direction of air-flow change, such one
Aspect can greatly inhibit tangential flow velocity in Primordial Qi stream, the flow tendency of air-flow is made to be remedied in the axial direction of stator blade, from
And avoid the problem that air-flow left avertence, gathering for air-flow may be implemented in this way, reduce the axis of wind loss, relative increase axial flow blower
Upward air output, and the air-flow at the air outlet by axial flow blower may be implemented and lead directly, in this way when stator blade is used for air conditioner
When may be implemented air-flow be exactly perpendicularly to air conditioner air outlet project, meet the design requirement of air-conditioning products；And due to air-flow
The variation of flow direction so that be happened at the segregation phenomenon at the rear of stator blade suction surface in the prior art and effectively contained, subtracted
Lack Trailing Edge Loss, realize the kinetic energy rejection for reducing air-flow and reduces the purpose of pneumatic noise.
In addition, the stator blade of the axial flow blower in above-described embodiment provided by the invention can also have following supplementary technology special
Sign：
In one embodiment of the invention, one end of the relatively close blade body is another to its along the lug boss
The protrusion height at end, the lug boss is incremented by or is stepped in continuity and is incremented by.
In the present solution, the protrusion height of setting lug boss is in its other end along one end of relatively close blade body thereon
Continuity is incremented by or is stepped and is incremented by, in this way can the opposite slope for reducing the surface that blade body side is faced on lug boss
Degree mutation can occur to avoid the height of projection size of lug boss and make so while meeting lug boss height design requirement
At local resistance loss, on the one hand can ensure that adhesive ability of the air-flow in lug boss protrusion surface in this way, and can be in air-flow
So that the tangential velocity of air-flow is consumed during the lug boss surface flow, realizes and the flow tendency of air-flow is remedied to stator blade
Axial direction on, on the other hand, can greatly reduce the component that air-flow acts perpendicularly to lug boss surface, reduce air-flow flow through it is quiet
Kinetic energy rejection when leaf reduces the energy consumption and noise of axial flow blower.
In any of the above-described technical solution, it is preferable that along the lug boss one end of the relatively close blade body to its
The other end, the surface that the pressure surface side is located on the lug boss, which is that height is gradually increased, to be seamlessly transitted cambered surface or is height
It is gradually increased to seamlessly transit inclined-plane.
In the present solution, one end of relatively close blade body is arranged along lug boss to its other end, lug boss towards
The surface of blade body side be height gradually it is increased seamlessly transit cambered surface or be height gradually it is increased seamlessly transit tiltedly
Face can make this seamlessly transit cambered surface or seamlessly transit inclined-plane other than the attached wall as air-flow, can also play fair current in this way
With the effect of rectification, air-flow can not only be promoted in this way in the adhesive ability on lug boss surface, deflecting of the efficient hardening to air-flow
With water conservancy diversion effect, the flow tendency of air-flow is remedied in the axial direction of stator blade with realizing, and it is vertical to accordingly decrease air-flow
The component on lug boss surface is acted on, reduces kinetic energy rejection of the air-flow on stator blade to the maximum extent, reduces the energy of axial flow blower
Consumption and noise.
In any of the above-described technical solution, it is preferable that along the lug boss one end of the relatively close blade body to its
The other end, the molded line for seamlessly transitting cambered surface are concave curve.
In the present solution, one end that relatively close blade body is arranged along lug boss seamlessly transits cambered surface to its other end
Molded line be concave curve, in this way setting can improve to the maximum extent air-flow lug boss surface adhesive ability, with reinforcing
The flow tendency of air-flow is remedied in the axial direction of stator blade by the deflecting to air-flow and water conservancy diversion effect with realizing.
In one embodiment of the invention, the surface on the lug boss positioned at the pressure surface side includes：Water conservancy diversion arcs
Face area, the one end in water conservancy diversion cambered surface area are connect with the pressure face transition of the blade body；Rectification face area, with the water conservancy diversion
The other end transition in cambered surface area connects, wherein the extreme higher position in water conservancy diversion cambered surface area is not higher than the position in the rectification face area
It sets.
In said program, the surface that lug boss is arranged includes rectification face area and water conservancy diversion cambered surface area, wherein flows through lug boss table
The air-flow in face can flow successively through water conservancy diversion cambered surface area and rectification face area, and water conservancy diversion cambered surface area is in arc shape, is mainly used for making air-flow edge
Directional velocity when guide face area is flowed and makes in air-flow along water conservancy diversion cambered surface area flow process along the tangential variations in guide face area
The tangential velocity of air-flow is consumed；Rectification face area mainly smoothly extends along the flow direction of air-flow, to work as air-flow along rectification face area
During flowing, rectification and fair current are carried out to air-flow using rectification face area, so can not only further consume cutting for air-flow
To speed, further the flow tendency of air-flow is remedied in the axial direction of stator blade, and the less turbulence of air-flow can be reduced, is reduced
Kinetic energy rejection of the air-flow when flowing through stator blade reduces the energy consumption and noise of axial flow blower.
In above-mentioned technical proposal, it is preferable that one end of the relatively close blade body is another to its along the lug boss
The molded line at end, the rectification face area is straight line.
In said program, setting rectification face area is in one end of the relatively close blade body along lug boss to its another extreme direction
On molded line be straight line, which can be parallel with the axis of stator blade or intersects, it is to be understood that in the axis of the straight line and stator blade
When line intersects, the angle of the two should not be too large, and be difficult to play the rectification effect in rectification face area suddenly excessively to avoid rectification face area
Problem；Molded line by the way that rectification face area is arranged is straight line, air-flow can be made to move along a straight line along rectification face area, to reach whole to air-flow
The purpose of stream and fair current can reduce the less turbulence of air-flow in this way, reduce kinetic energy rejection of the air-flow when flowing through stator blade, reduce
The energy consumption and noise of axial flow blower.
In above-mentioned technical proposal, it is preferable that one end of the relatively close blade body is another to its along the lug boss
End, the molded line in the rectification face area are parallel with the axis of the stator blade.
In the present solution, the molded line in setting rectification face area is parallel with the axis of stator blade, this aspect can be to a certain extent
The flow tendency of air-flow, on the other hand can greatly be remedied in axial direction, so to reduce gas by the tangential flow velocity for inhibiting air-flow
The kinetic energy rejection when flowing through stator blade is flowed, the energy consumption and noise of axial flow blower are reduced.
In any of the above-described technical solution, along the lug boss one end of the relatively close blade body to its other end,
The molded line in water conservancy diversion cambered surface area is crest curve.
In said program, one end of relatively close blade body is set along lug boss to its other end, water conservancy diversion cambered surface area
Molded line is crest curve, is oriented to air-flow using the arcuate surface that crest curve is constructed, relative to plane or concave structure
Speech, arcuate surface and the transition effect in rectification face area are more preferable, can be conducive to reduce the air-flow flow resistance on lug boss surface, and in identical water conservancy diversion
Under conditions of length, air-flow is more preferable along attached wall effect when being flowed in the water conservancy diversion cambered surface region of outer gibbosity, is more conducive in this way to air-flow
The consumption of tangential velocity realizes gathering for air-flow to advanced optimize the rectification effect to air-flow flow tendency, reduces air quantity damage
It becomes estranged noise, the air output in relative increase axial direction, and it is straight to improve leading for air-flow at the air outlet to axial flow blower in this way
Effect makes the air outlet that air-flow can be exactly perpendicularly to air conditioner after refraction project, meets the design requirement of air-conditioning products.
In any of the above-described technical solution, along the lug boss one end of the relatively close blade body to its other end,
The length L of the lug boss meets：L≤a+r, wherein a is the rectification face area along one end of the relatively close blade body
Width on another extreme direction in the rectification face area, r are the radius of curvature in water conservancy diversion cambered surface area.
It is understood that being less than or equal to the song of the width a and water conservancy diversion cambered surface area in rectification face area in the length L of lug boss
When the sum of rate radius r, can ensure to be not in additional projective structure in water conservancy diversion cambered surface area, and conducive to ensure rectification face area with
The flatness of water conservancy diversion cambered surface area joining place, ensures the rectification effect to air-flow well.
In any of the above-described technical solution, along the lug boss one end of the relatively close blade body to its other end,
The length L of the lug boss meets：L=a+r.
In any of the above-described technical solution, along the lug boss one end of the relatively close blade body to its other end,
The length L of the lug boss meets：B/9≤L≤B/8, wherein B is between the leading edge and the rear of blade body of the blade body
Air line distance.
In the present solution, setting lug boss length L be blade body leading edge and the rear of blade body between straight line away from
From the 1/9~1/8 of B, the suitable length of lug boss can be ensured according to the specific size of stator blade in this way, air-flow is made to flow through protrusion
There is suitable attached wall path during portion, so can not have and air-flow deflecting is asked to avoid lug boss curtailment
Topic, meanwhile, it also can avoid that lug boss length is excessive to cause gas-flow resistance to lose excessive problem, herein, by by lug boss
Length L is limited to 1/9~1/8 of the air line distance B between the leading edge of blade body and the rear of blade body, can fully ensure that gas
When stream flows through lug boss, the tangential velocity of air-flow is fully dissipated, and the axial flow velocity of air-flow is smaller by being influenced, in reality
Minimize the drag losses of air-flow while now guiding to air-flow.
In any of the above-described technical solution, the maximum value d of the thickness of the lug boss meets：B/31≤d≤2B/31, wherein
B is the air line distance between the leading edge and the rear of blade body of the blade body.
In the present solution, setting lug boss thickness maximum value d be B/31≤d≤2B/31, in this way can be according to stator blade
Specific size ensure that the height of lug boss is suitable, make air-flow when along the surface flow of lug boss with suitable climbing height
To ensure that air flow direction changes, so entire Ye Daonei axial dimensions can be led to avoid the height of projection due to lug boss is excessively high
Variable gradient is excessive and causes power loss caused by air-flow vortex, while can be too low and rise to avoid the height of projection of lug boss
The problem of less than to air-flow deflecting, herein, can by the way that the maximum value d of the thickness of lug boss is limited to B/31≤d≤2B/31
When fully ensuring that air-flow flows through lug boss, the tangential velocity of air-flow is fully dissipated, and the shadow that the axial flow velocity of air-flow is subject to
Sound is smaller, to realize that the while of being oriented to air-flow makes the drag losses of air-flow minimize.
In any of the above-described technical solution, the maximum value d of the thickness of the lug boss meets：3mm≤d≤6mm.
In the present solution, the maximum value d of the thickness of setting lug boss is 3mm~6mm, on the one hand, since lug boss is most thick
Adjacent to the air outlet of axial flow blower at position, the maximum value d that the thickness of lug boss is arranged is not more than 6mm, in this way can be further
It avoids occurring segregation phenomenon at the rear of suction surface, reduces Trailing Edge Loss and on the other hand the maximum of the thickness of lug boss is set
Value d is not less than 3mm, avoids reducing problem to air flow guiding effect caused by lug boss height deficiency or lug boss is excessively thin leads
Cause the problem of intensity deficiency.
In any of the above-described technical solution, the blade body is connect with the arc-shaped transition of the lug boss.
It is connect with the arc-shaped transition of lug boss in the present solution, blade body is arranged, entire leaf road can be improved in this way in axis
Upward structural continuity avoids entire leaf road change in size gradient is excessive in an axial direction that gas-flow resistance loss is caused increased to be asked
Topic realizes the kinetic energy rejection for reducing air-flow and reduces the purpose of pneumatic noise.
In any of the above-described technical solution, one end of the blade body and the axial flow blower are relatively distant from the lug boss
Air outlet it is concordant.
In the present solution, setting lug boss on be relatively distant from blade body one end it is concordant with the air outlet of axial flow blower, this
Sample can make air-flow directly be detached from stator blade after flowing through lug boss, real to reduce the turbulent flow influence in the back pressure side of lug boss
It now reduces the kinetic energy rejection of air-flow and reduces the purpose of pneumatic noise.
In any of the above-described technical solution, attached wall supplementary structure is provided on the surface of the lug boss, wherein the attached wall
Supplementary structure includes golf spherical surface pit, coarse lines and/or the fair current groove extended along fluid flow direction.
In the present solution, setting is such as golf spherical surface pit, coarse lines and/or along fluid flow direction on lug boss
On the one hand the attached wall supplementary structure such as the fair current groove of extension can improve air-flow in the adhesion effect on lug boss surface in this way, make
The flow direction of air-flow is significantly changed, to realize the tangential flow velocity inhibited in Primordial Qi stream, the flow tendency of air-flow is made to be rectified
Just in the axial direction of stator blade, air-flow left avertence is avoided the problem that；On the other hand, the wake flow range on rear side of lug boss can be reduced, this
Sample can reduce the back pressure of lug boss, reduce flow resistance, reduce the kinetic energy rejection of air-flow and reduce the purpose of pneumatic noise.
The embodiment of second aspect of the present invention provides a kind of axial flow blower, including：Wind collection；Movable vane is arranged described
In the upstream space of wind collection；Stator blade described in any of the above-described technical solution is arranged in the downstream space of the wind collection.
Axial flow blower provided by the invention, when the air-flow flowed out from movable vane is along stator blade surface flow, using air-flow to convex
The attached wall for playing portion makes air-flow along the surface flow of lug boss to make the flow direction of air-flow change, can make air-flow in this way
Tangential flow velocity be suppressed and so that the tangential flow trend of air-flow is remedied in the axial direction of stator blade, to avoid air-flow left avertence
The problem of, gathering for air-flow may be implemented in this way, reduce the wind loss of product, the air output in relative increase product axial direction,
And the air-flow that may be implemented at air outlet by axial flow blower is led directly, when product applies to air-conditioning products, may be implemented to make gas
The air outlet that stream is exactly perpendicularly to air conditioner projects, and meets the design requirement of air-conditioning products；And made due to the setting of lug boss
The flow direction of air-flow changes, and can contain the segregation phenomenon being happened at axial flow blower air outlet in this way, reduces Trailing Edge Loss,
It realizes the kinetic energy rejection for reducing air-flow and reduces the purpose of pneumatic noise.
The embodiment of third aspect present invention provides a kind of air conditioner, including：It air duct and is sent with what the air duct was connected to
Air port；Axial flow blower described in above-mentioned technical proposal is located in the air duct, and the axis of the wind collection of the axial flow blower
Perpendicular to the axis of the air outlet.
Air conditioner provided by the invention acts on the attached wall of lug boss using air-flow, makes the air-flow flowed out from movable vane
Tangential flow velocity can be suppressed on stator blade, the flow tendency of air-flow is remedied in the axial direction of stator blade, to avoid air-flow left avertence
The problem of, in this way by being reflected to air-flow after, can make air-flow be exactly perpendicularly to air conditioner air outlet project, meet air-conditioning products
Design requirement.
Optionally, air conditioner is cabinet air-conditioner or air-conditioner outdoor unit.
The additional aspect and advantage of the present invention will become apparent in following description section, or practice through the invention
Recognize.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the numerical simulation cloud atlas of the air duct part of air conditioner in the prior art；
Fig. 2 is the structural schematic diagram of axial flow blower described in one embodiment of the invention；
Fig. 3 be M-M shown in Fig. 2 to schematic cross-sectional view；
Fig. 4 is structural schematic diagram of the lug boss described in first embodiment of the invention under the first visual angle；
Fig. 5 is structural schematic diagram of the lug boss described in first embodiment of the invention under the second visual angle；
Fig. 6 is structural schematic diagram of the lug boss described in first embodiment of the invention under third visual angle；
Fig. 7 is structural schematic diagram of the lug boss described in second embodiment of the invention under the first visual angle；
Fig. 8 is structural schematic diagram of the lug boss described in second embodiment of the invention under the second visual angle；
Fig. 9 is structural schematic diagram of the lug boss described in second embodiment of the invention under third visual angle；
Figure 10 is the schematic cross-sectional view of air conditioner described in one embodiment of the invention；
Figure 11 is the numerical simulation cloud atlas of the air duct part of air conditioner described in one embodiment of the invention.
Wherein, the reference numeral in Fig. 1 and the correspondence between component names are：
Side where A' stator blades, side where B' movable vanes, C' tunnel inlets position, the interval location between D' movable vanes and stator blade,
The posterior border position of P1' stator blades, the downstream position of P2' stator blade rears；
Wherein, the reference numeral in Fig. 2 to Figure 11 and the correspondence between component names are：
10 stator blades, 11 blade bodies, 111 leading edges, 112 rears, 12 lug bosses, 121 rectification face areas, 122 water conservancy diversion cambered surface areas,
123 first protrusions, 124 second protrusions, 20 movable vanes, 30 wind collections, 40 air duct heads, 41 air outlets, 50 air guide structures；
Side where A stator blades, side where C movable vanes, the downstream position of P1 axial flow blowers, the rearward position of P2 lug bosses.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented different from other modes described here using other, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
The axial flow blower described according to some embodiments of the invention and its stator blade are described referring to Fig. 2 to Fig. 9.
The axial flow blower that the embodiment of the present invention provides, as shown in Figures 2 and 3, axial flow blower include movable vane 20 and stator blade
10, movable vane 20 is rotated by motor driving to drive air to flow, and stator blade 10 is still in the downstream side of opposite movable vane 20, stator blade
The leading edge 111 of 10 blade body 11 is located at the side of relatively close movable vane 20 on blade body 11, and the rear 112 of blade body 11 is located at
The side of movable vane 20 is relatively distant from blade body 11, fluid is flowed along the surface of blade body 11 from leading edge 111 to rear 112, leaf
Sheet body 11 is for cutting the air-flow blown from movable vane 20, being accelerated and diffusion.
In stator blade described in some embodiments of the invention, as shown in Fig. 2 to Fig. 9, stator blade 10 includes blade body 11 and convex
Play portion 12.
Wherein, blade body 11 has in the pressure face of inner concavity and the suction surface in outer gibbosity, and blade body 11 has leading edge
And rear；Lug boss 12 is arranged at the rear 112 of blade body 11, and lug boss 12 is protruded to the pressure surface side of blade body 11.
Preferably, blade body 11 is an integral molding structure with lug boss 12.
The stator blade 10 of axial flow blower provided by the invention, the side with pressure face is pressure on the blade body 11 of stator blade 10
Surface side, the side with suction surface is suction surface side on blade body 11, wherein setting lug boss 12 is protruded to pressure surface side, with
Convergence structure is formed before the air outlet of axial flow blower, when air-flow is along the axial movement of stator blade 10 and meets with lug boss 12,
Attached wall effect using air-flow along lug boss 12 can be such that air-flow is flowed along the protrusion surface of lug boss 12, to make the stream of air-flow
To changing, it on the one hand can greatly inhibit the tangential flow velocity in Primordial Qi stream in this way, the flow tendency of air-flow is made to be corrected
Onto the axial direction of stator blade 10, to avoid the problem that air-flow left avertence, may be implemented gathering for air-flow in this way, reduce wind loss,
Air output in the axial direction of relative increase axial flow blower, and the air-flow at the air outlet by axial flow blower may be implemented and lead directly, this
The air outlet injection that air-flow is exactly perpendicularly to air conditioner may be implemented when stator blade 10 is used for air conditioner for sample, meet air-conditioning products
Design requirement；And due to the variation of air flow direction so that point being happened in the prior art at the rear of 10 suction surface of stator blade
Effectively contained from phenomenon, reduce Trailing Edge Loss, realize the kinetic energy rejection for reducing air-flow and reduces the mesh of pneumatic noise
's.
Specifically, the surface in this programme protrusions portion 12 is in the structure protruded towards pressure surface side, fluid flows through protrusion
When 12 surface of portion with the mantle friction of lug boss 12 so that the local velocity of fluid reduces, pressure increases, i.e., and then makes fluid shape
The attached wall effect on pairs of 12 surface of lug boss, wherein fluid constantly becomes flow direction when being climbed along 12 surface of lug boss
Change, and for the fluid of tangential flow, path length is easy that tangential flow velocity is made to be consumed when due to along 12 tangential flow of lug boss, and
Lug boss 12 can be such that the flow direction of fluid is corrected in the axial direction of stator blade 10 tangential fluid guiding, realize the stream of fluid
It leads directly in dynamic direction.
More specifically, also some is real by way of increasing stator blade chord length, modification stator blade recess radian in the prior art
Purpose now straight to conductance of working off one's feeling vent one's spleen, compared with which, this programme is become apparent in straight effect being led to air-flow, and we
Stator blade need not be elongated in case, can save body volume in this way, and product is made to have in structure design, appearance design and cost
It is advantageous；In addition, also have is influenced increasing the stator blade quantity of stator blade in such a way that the roads Shi Ye width narrows in the prior art
The main flow direction of air-flow realizes and leads the flow direction of air-flow directly that compared with which, this programme is leading in straight effect more air-flow
To be apparent, and this programme can greatly reduce the flow resistance of air-flow, to reduce the dynamic of air-flow in this way without increasing leaf road quantity
Power loss reduces pneumatic noise.
In one embodiment of the present invention, as shown in Figures 4 to 6, the relatively close blade body 11 along lug boss 12
One end to its other end, i.e., as described in Fig. 4 and Fig. 6 along the front end of lug boss to its rear end, the protrusion height of lug boss 12
It is incremented by continuity or is stepped and is incremented by.Opposite it can reduce the table that 11 side of blade body is faced on lug boss 12 in this way
The gradient in face can be to avoid the height of projection size of lug boss 12 so while meeting 12 height design requirement of lug boss
On the one hand local resistance loss caused by there is mutation, can ensure that energy of attachment of the air-flow in 12 protrusion surface of lug boss in this way
Power, and the tangential velocity of air-flow can be made to be consumed during air-flow is along 12 surface flow of lug boss, it realizes the stream of air-flow
Dynamic trend is remedied in the axial direction of stator blade 10, on the other hand, can greatly be reduced air-flow and be acted perpendicularly to 12 surface of lug boss
Component reduces kinetic energy rejection of the air-flow when flowing through stator blade 10, reduces the energy consumption and noise of axial flow blower.
Preferably, one end of relatively close blade body 11 is to its other end along lug boss 12, i.e., such as institute in Fig. 4 and Fig. 6
It states along the front end of lug boss and is located at the surface of pressure face side to its rear end on lug boss 12 to be that height is gradually increased seamlessly transit
Cambered surface, it is highly preferred that as shown in fig. 6, to its other end, this is smoothed for one end of relatively close blade body 11 along lug boss 12
The molded line for crossing cambered surface is concave curve；Certainly, this programme is not limited to the present embodiment, in addition to this, for example, can also be arranged convex
The surface for playing portion 12, which is that height is gradually increased, seamlessly transits inclined-plane, alternatively, on the surface of lug boss 12 to seamlessly transit arc
When face, one end of the relatively close blade body 11 along lug boss 12 is may also set up to its other end, seamlessly transits the molded line of cambered surface
For crest curve.
In the present solution, one end of relatively close blade body 11 is arranged along lug boss 12 to its other end, lug boss 12
To be that height is gradually increased seamlessly transit cambered surface or be that height is gradually increased flat on the surface towards 11 side of blade body
Sliding intermediate incline, can make this seamlessly transit cambered surface or seamlessly transit inclined-plane other than the attached wall as air-flow in this way, can be with
Play the role of fair current and rectification, air-flow can not only be promoted in this way in the adhesive ability on 12 surface of lug boss, efficient hardening pair
The flow tendency of air-flow is remedied in the axial direction of stator blade 10 by the deflecting of air-flow and water conservancy diversion effect with realizing, and can be correspondingly
The component that air-flow acts perpendicularly to 12 surface of lug boss is reduced, reduces kinetic energy rejection of the air-flow on stator blade 10 to the maximum extent,
Reduce the energy consumption and noise of axial flow blower.
In one embodiment of the present invention, it is preferable that as shown in Figs. 4-6, the relatively close blade along lug boss 12
One end of body 11 to its other end, i.e., as described in Fig. 4 and Fig. 6 along the front end of lug boss to its rear end, the length L of lug boss 12
Meet：B/9≤L≤B/8, wherein B is the air line distance between the leading edge 111 and the rear 12 of blade body 11 of blade body 11.This
Place, by the straight line that is limited to the length L of lug boss 12 between the leading edge 111 of blade body 11 and the rear 12 of blade body 11 away from
From the 1/9~1/8 of B, when can fully ensure that air-flow flows through lug boss 12, the tangential velocity of air-flow is fully dissipated, and air-flow
Axial flow velocity it is smaller by being influenced, with realize air-flow is oriented to while so that the drag losses of air-flow is minimized.
In one embodiment of the present invention, it is preferable that as shown in Figures 4 to 6, the maximum value of the thickness of lug boss 12
D meets：B/31≤d≤2B/31.Herein, by the way that the maximum value d of the thickness of lug boss 12 is limited to B/31≤d≤2B/31,
When can fully ensure that air-flow flows through lug boss 12, the tangential velocity of air-flow is fully dissipated, and the axial flow velocity of air-flow by
Influence it is smaller, with realize air-flow is oriented to while so that the drag losses of air-flow is minimized.
In one particular embodiment of the present invention, as shown in figure 3, being relatively distant from one end of blade body 11 on lug boss 12
It is concordant with the air outlet of axial flow blower, i.e., it is flat along the air outlet of the rear end of lug boss and axial flow blower as described in Fig. 4 and Fig. 6
Together, wherein the maximum value d of the thickness of setting lug boss 12 meets：3mm≤d≤6mm can be further avoided in this way in axis stream
Occur segregation phenomenon at the air outlet of wind turbine, reduces Trailing Edge Loss, and to gas caused by 12 height deficiency of avoidable lug boss
Conductance stream effect reduces problem or the excessively thin problem for leading to intensity deficiency of lug boss 12.
In one embodiment of the present invention, it is preferable that blade body 11 is connect with 12 arc-shaped transition of lug boss, in this way
The structural continuity of entire leaf road in the axial direction can be improved, avoids entire leaf road change in size gradient is excessive in an axial direction to cause gas
The problem of drag losses increase is flowed, realize the kinetic energy rejection for reducing air-flow and reduces the purpose of pneumatic noise.
The air duct of air conditioner to being provided with stator blade 10 described in first embodiment of the invention carries out numerical simulation, herein
The effect of simulation cloud atlas as shown in figure 11 to 10 application occasion of stator blade in first embodiment of the invention is obtained with numerical simulation
It is explained.
The flow field situation of air duct part is illustrated that in Figure 11, wherein the dotted line signal stator blade 10 between A and C and movable vane
20 boundary position, specifically, A illustrate 10 place side of stator blade, C to illustrate 20 place side of movable vane, and air-flow is from C effluents to the sides A, separately
Outside, in Figure 11 P1 illustrate axial flow blower downstream position, P2 illustrate lug boss 12 rearward position, compared with the flow field in Fig. 1,
At the positions P1 in fig. 11, the left avertence phenomenon during air-flow is flowed by the lateral sides A C obviously weakens, it is believed that from stator blade
The tangential velocity of the air-flow of 10 air stream outlet outflow is almost consumed, and the wind direction of 10 downstream position of stator blade is made to flow
Approximate linear on direction, in conjunction with Figure 10 it is found that the tangential flow velocity due to air-flow is consumed, air-flow is mainly linearly into inlet air
It, can be to avoid there is tangential fluid in air duct head 40, to avoid tangential fluid in the air outlet 41 in air duct when road head 40
The problem of place is tangentially thrown away by centrifugal forces affect and causes air-flow that can not be projected perpendicular to the air outlet 41 in air duct.
In addition, at the positions P2 of Figure 11, it is seen that the range in tail area is obviously reduced, and the turbulent flow phenomenon in tail area obtains
Apparent containment, it is possible thereby to unambiguously infer that the Trailing Edge Loss at this programme Axial-Flow fan outlet is significantly dropped
It is low.
In addition, it can be seen from figure 1 that the air-flow velocity at C' is compared with the flow velocity at the positions P1', front and back speed
Difference is in 4m/s or more, and as can be seen from Fig. 11, flow velocity and the flow velocity at the positions P1 at 20 air flow inlet of movable vane are carried out pair
Than front and back speed difference is no more than 3m/s, and the power loss of air-flow is substantially reduced, and can effectively ensure that product efficiency.
In a second embodiment of the present invention, as shown in Figures 5 to 7, the surface of lug boss 12 includes rectification face area 121
With water conservancy diversion cambered surface area 122.
Specifically, the one end in water conservancy diversion cambered surface area 122 is connect with the pressure face transition of blade body 11；Rectification face area 121 with lead
Flow the other end transition connection in cambered surface area 122, wherein the extreme higher position in water conservancy diversion cambered surface area 122 is not higher than rectification face area 121
Position.
In said program, the surface of setting lug boss 12 includes rectification face area 121 and water conservancy diversion cambered surface area 122, wherein is flowed through
The air-flow on 12 surface of lug boss can flow successively through water conservancy diversion cambered surface area 122 and rectification face area 121, and water conservancy diversion cambered surface area 122 is in arc surfaced
Shape, directional velocity when being mainly used for that air-flow is made to flow along water conservancy diversion cambered surface area 122 along water conservancy diversion cambered surface area 122 tangential variations, and
The tangential velocity of air-flow is set to be consumed along 122 flow process of water conservancy diversion cambered surface area in air-flow；Rectification face area 121 is mainly along air-flow
Flow direction smoothly extends, with work as air-flow along rectification face area 121 flow during, using rectification face area 121 to air-flow carry out
Rectification and fair current so can not only further consume the tangential velocity of air-flow, further be remedied to the flow tendency of air-flow
In the axial direction of stator blade 10, and the less turbulence of air-flow can be reduced, reduce kinetic energy rejection of the air-flow when flowing through stator blade 10, reduce
The energy consumption and noise of axial flow blower.
In a second embodiment of the present invention, as shown in Figure 7 to 9, the relatively close blade body 11 along lug boss 12
One end to its other end, i.e., as described in Fig. 7 and Fig. 9 along the front end of lug boss to its rear end, the molded line in rectification face area 121 is
Straight line.Molded line by the way that rectification face area 121 is arranged is straight line, air-flow can be made to move along a straight line along rectification face area 121, to reach pair
The purpose of air-flow rectification and fair current can reduce the less turbulence of air-flow in this way, reduce kinetic energy of the air-flow when flowing through stator blade 10
Loss, reduces the energy consumption and noise of axial flow blower.
Wherein, further preferably along lug boss 12 one end of relatively close blade body 11 to its other end, i.e., such as Fig. 7 and
Along the front end of lug boss to its rear end described in Fig. 9, the molded line in rectification face area 121 is parallel with the axis of stator blade 10, this aspect
It can inhibit the tangential flow velocity of air-flow to a certain extent, on the other hand can the flow tendency of air-flow be greatly remedied to axial direction
On, so to reduce kinetic energy rejection of the air-flow when flowing through stator blade 10, reduce the energy consumption and noise of axial flow blower.It is more specific and
Speech, lug boss 12 include the first protrusion 123 of rectangular in cross-section, and a surface of first protrusion 123 is rectification face area 121,
And a line in the section of first protrusion 123 constructs the molded line in the rectification face area 121.
Certainly, the molded line that rectification face area 121 is may also set up in this programme intersects with the axis of stator blade 10, makes rectification face area
One end of one end of blade body 11 slightly prominent relatively close blade body thereon 11 is relatively distant from 121, it is to be understood that should
In the case of rectification face area 121 molded line and the axis of stator blade 10 between angle should not be too large, to avoid rectification face area 121 it is excessively steep and
The problem of being difficult to play the rectification effect in rectification face area 121, in this way design can make air-flow along 121 jet attached flow process of rectification face area
Middle flow direction is further changed, and is strengthened with this and is led straight effect to air-flow, and further decreases point at axial flow blower air outlet
From phenomenon, reduce Trailing Edge Loss.
In a second embodiment of the present invention, as shown in Figure 7 to 9, the relatively close blade body 11 along lug boss 12
One end to its other end, i.e., as described in Fig. 7 and Fig. 9 along the front end of lug boss to its rear end, the molded line in water conservancy diversion cambered surface area 122
For crest curve.More specifically, lug boss 12 includes the second protrusion 124, and the second protrusion 124 is integrated with the first protrusion 123
Formula structure, wherein the surface that 11 side of blade body is faced in the second protrusion 124 is water conservancy diversion cambered surface area 122, second protrusion
It is crest curve that the arc segment at 122 position of water conservancy diversion cambered surface area is corresponded on 124 cross section profile, and is water conservancy diversion cambered surface area 122
Molded line.
In said program, one end of relatively close blade body 11 is set along lug boss 12 to its other end, water conservancy diversion cambered surface
The molded line in area 122 is crest curve, is oriented to air-flow using the arcuate surface that crest curve is constructed, relative to plane or concave surface
For structure, arcuate surface and the transition effect in rectification face area 121 are more preferable, can be conducive to reduce the air-flow flow resistance on 12 surface of lug boss,
And under conditions of identical water conservancy diversion length, air-flow is more preferable along attached wall effect when being flowed in the water conservancy diversion cambered surface area 122 of outer gibbosity, in this way
More conducively to the consumption of air-flow tangential velocity, to advanced optimize the rectification effect to air-flow flow tendency, the poly- of air-flow is realized
Hold together, reduces the air output on wind loss and noise, relative increase axial direction, and the air outlet to axial flow blower can be improved in this way
Place's air-flow leads straight effect, so that the air outlet that air-flow can be exactly perpendicularly to air conditioner after refraction is projected, meets air-conditioning products
Design requirement.
In a second embodiment of the present invention, as shown in Figure 7 to 9, the relatively close blade body 11 along lug boss 12
One end to its other end, i.e., as described in Fig. 7 and Fig. 9 along the front end of lug boss to its rear end, the length L of lug boss 12 is full
Foot：L≤a+r, wherein a is rectification face area 121 in the other end along one end of relatively close blade body 11 to rectification face area 121
Width on direction, r are the radius of curvature in water conservancy diversion cambered surface area 122.
In a preferred embodiment of the invention, one end of relatively close blade body 11 is another to its along lug boss 12
End, i.e., as described in Fig. 7 and Fig. 9 along the front end of lug boss to its rear end, the length L satisfactions of lug boss 12：L=a+r.
It is understood that being less than or equal to the width a and water conservancy diversion cambered surface in rectification face area 121 in the length L of lug boss 12
When the sum of the radius of curvature r in area 122, it can ensure to be not in additional projective structure in water conservancy diversion cambered surface area 122, and conducive to protecting
The flatness for demonstrate,proving rectification face area 121 and 122 joining place of water conservancy diversion cambered surface area, ensures the rectification effect to air-flow well.
In a second embodiment of the present invention, it is preferable that as shown in Figure 7 to 9, the relatively close leaf along lug boss 12
One end of sheet body 11 to its other end, i.e., as described in Fig. 7 and Fig. 9 along the front end of lug boss to its rear end, the length of lug boss 12
L is spent to meet：B/9≤L≤B/8, wherein B is the air line distance between the leading edge and the rear of blade body 11 of blade body 11.This
Place, by the way that the length L of lug boss 12 to be limited to the air line distance B's between the leading edge of blade body 11 and the rear of blade body 11
1/9~1/8, when can fully ensure that air-flow flows through lug boss 12, the tangential velocity of air-flow is fully dissipated, and the axial direction of air-flow
Flow velocity is smaller by being influenced, to realize that the while of being oriented to air-flow makes the drag losses of air-flow minimize.
In a specific embodiment of said program, preferably thickness of the lug boss 12 in entire rectification face area 121 is equal
It is even, in addition, thickness of the lug boss 12 at 121 position of rectification face area is maximum and is d values, wherein can further preferred lug boss
12 thickness d at 121 position of rectification face area is equal with the radius of curvature r in water conservancy diversion cambered surface area 122, i.e. d=r, at this point, rectification face
Width a of the area 121 on another extreme direction along one end of relatively close blade body 11 to rectification face area 121 meets：A=B/9
~B/8-d.
In a second embodiment of the present invention, it is preferable that the maximum value d of the thickness of lug boss 12 meets：B/31≤d≤
2B/31, wherein B is the air line distance between the leading edge and the rear of blade body of the blade body.Herein, by by lug boss
The maximum value d of 12 thickness is limited to B/31≤d≤2B/31, and when can fully ensure that air-flow flows through lug boss 12, air-flow is cut
It is fully dissipated to speed, and the axial flow velocity of air-flow is smaller by being influenced, to realize that the while of being oriented to air-flow makes gas
The drag losses of stream minimize.
In a second embodiment of the present invention, as shown in Figure 7 to 9, opposite and water conservancy diversion arcs in rectification face area 121 are set
The other end that face area 122 connects is concordant with the air outlet of axial flow blower, i.e., one end of blade body 11 is relatively distant from lug boss 12
(rear end) is concordant with the air outlet of axial flow blower, wherein and the thickness on setting lug boss 12 at rectification face area 121 is maximized d,
And the preferably thickness d of lug boss 11 at this location meets：3mm≤d≤6mm.It can further avoid in axial flow blower in this way
Air outlet at there is segregation phenomenon, reduce Trailing Edge Loss, and can avoid leading air-flow caused by 12 height of lug boss is insufficient
Flowing effect reduces the problem of problem or the excessively thin caused stator blade 11 intensity deficiency of stator blade 11.
In a second embodiment of the present invention, it is preferable that as shown in figure 3, blade body 11 and 12 arc-shaped mistake of lug boss
Connection is crossed, the structural continuity of entire leaf road in the axial direction can be improved in this way, avoids entire leaf road change in size ladder in an axial direction
Big the problem of causing gas-flow resistance loss to increase is spent, the kinetic energy rejection for reducing air-flow is realized and reduces the purpose of pneumatic noise.
In any of the above-described technical solution, attached wall supplementary structure (not shown) is provided on the surface of lug boss 12,
In, attached wall supplementary structure includes golf spherical surface pit, coarse lines and/or the fair current groove extended along fluid flow direction.
In the present solution, setting is such as golf spherical surface pit, coarse lines and/or along fluid flowing side on lug boss 12
On the one hand the attached wall supplementary structure such as the fair current groove to extension can improve attachment of the air-flow on 12 surface of lug boss and imitate in this way
Fruit makes the flow direction of air-flow significantly be changed, to the flow tendency realized the tangential flow velocity inhibited in Primordial Qi stream, make air-flow
It is remedied in the axial direction of stator blade 10, avoids the problem that air-flow left avertence；On the other hand, the wake flow of 12 rear side of lug boss can be reduced
Range can reduce the back pressure of lug boss 12, reduce flow resistance, reduce the kinetic energy rejection of air-flow and reduce pneumatic noise in this way
Purpose.
As shown in Figures 2 and 3, axial flow blower provided by the invention further includes wind collection 30；Specifically, movable vane 20 is arranged
In the upstream space of wind collection 30；Stator blade 10 is arranged in the downstream space of wind collection 30.
Axial flow blower provided by the invention utilizes air-flow when the air-flow flowed out from movable vane 20 is along 10 surface flow of stator blade
Attached wall effect to lug boss 12, makes air-flow along the surface flow of lug boss 12 to make the flow direction of air-flow change, in this way
The tangential flow velocity of air-flow can be made to be suppressed and the tangential flow trend of air-flow is made to be remedied in the axial direction of stator blade 10, to keep away
Gathering for air-flow may be implemented in the problem of exempting from air-flow left avertence in this way, reduces the wind loss of product, in relative increase product axial direction
Air output, and the air-flow at the air outlet by axial flow blower may be implemented and lead directly, can be with when product applies to air-conditioning products
It realizes that the air outlet for making air-flow be exactly perpendicularly to air conditioner projects, meets the design requirement of air-conditioning products；And due to lug boss 12
Setting and so that the flow direction of air-flow is changed, can contain the segregation phenomenon being happened at axial flow blower air outlet in this way, subtract
Small Trailing Edge Loss realizes the kinetic energy rejection for reducing air-flow and reduces the purpose of pneumatic noise.
As shown in Figure 10 and Figure 11, air conditioner provided by the invention, including：Air duct and the air outlet 41 being connected to air duct；
Axial flow blower in above-mentioned technical proposal, axial flow blower are located in air duct, and the axis of the wind collection 30 of axial flow blower perpendicular to
The axis of air outlet 41.
More specifically, as shown in Figure 10, air duct includes wind collection 30 and air duct head 40, wind collection 30 and air duct head
40 by flanged joint, and the air guide structure 50 for controlling 41 aperture of air outlet is provided at the air outlet 41 on air duct head 40,
Wherein, air-flow is flowed out from wind collection 30 in laggard inlet air road head 40 along the axial of stator blade 10, i.e., air-flow is along arrow shown in Figure 10
Head is directed toward flowing, and in 50 aperture maximum of air guide structure, the air-flow axially flowed along stator blade 10 is refracted in air duct head 40
It is projected afterwards perpendicular to the air outlet 41 on air duct head 40.
Air conditioner provided by the invention acts on the attached wall of lug boss 12 using air-flow, makes the gas flowed out from movable vane 20
The tangential flow velocity of stream can be suppressed on stator blade 10, the flow tendency of air-flow is remedied in the axial direction of stator blade 10, to avoid
The problem of air-flow left avertence, in this way by being reflected to air-flow after, the air outlet 41 that air-flow is exactly perpendicularly to air conditioner can be made to project, it is full
The design requirement of sufficient air-conditioning products.
Optionally, air conditioner is cabinet air-conditioner or air-conditioner outdoor unit.
In conclusion axial flow blower provided by the invention and its stator blade, may be implemented at the air outlet by axial flow blower
Air-flow is led directly, and can contain the segregation phenomenon being happened at axial flow blower air outlet, reduces Trailing Edge Loss, and realizing reduces air-flow
Kinetic energy rejection and reduce pneumatic noise purpose；Air conditioner provided by the invention, because designing above-mentioned axial flow blower and its stator blade
To have all of the above advantageous effect.
In the present invention, term " first ", " second " are only used for the purpose described, are not understood to indicate or imply phase
To importance；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " installation ", " connected ",
The terms such as " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection, can also be detachably to connect
It connects, or is integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In description of the invention, it is to be understood that the orientation or positional relationship of the instructions such as term "front", "rear" be based on
Orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than indicates or imply institute
The device or unit of finger must have specific direction, with specific azimuth configuration and operation, it is thus impossible to be interpreted as to this hair
Bright limitation.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the present invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (16)
1. a kind of stator blade of axial flow blower, which is characterized in that including：
Blade body has in the pressure face of inner concavity and the suction surface in outer gibbosity, and the blade body has leading edge and rear；
Lug boss is arranged at the rear of the blade body, and the lug boss is protruded to the pressure surface side of the blade body；
One end of the relatively close blade body is to its other end along the lug boss, and the protrusion height of the lug boss is in company
Continuous property is incremented by or is stepped and is incremented by；Or
Surface on the lug boss positioned at the pressure surface side includes：
Water conservancy diversion cambered surface area, the one end in water conservancy diversion cambered surface area are connect with the pressure face transition of the blade body；
Rectification face area is connect with the other end transition in water conservancy diversion cambered surface area, wherein the extreme higher position in water conservancy diversion cambered surface area
Not higher than the position in the rectification face area.
2. the stator blade of axial flow blower according to claim 1, which is characterized in that
When one end of the relatively close blade body along the lug boss is to its other end, the protrusion height of the lug boss is in
Continuity is incremented by or when being stepped incremental, along the lug boss one end of the relatively close blade body to its other end,
On the lug boss positioned at the pressure surface side surface be height gradually it is increased seamlessly transit cambered surface or be height gradually increase
Big seamlessly transits inclined-plane.
3. the stator blade of axial flow blower according to claim 2, which is characterized in that
One end of the relatively close blade body is to its other end, the molded line for seamlessly transitting cambered surface along the lug boss
Concave curve.
4. the stator blade of axial flow blower according to claim 1, which is characterized in that
When it includes water conservancy diversion cambered surface area and rectification face area to be located at the surface of the pressure surface side on the lug boss, along the protrusion
To its other end, the molded line in the rectification face area is straight line for one end of the relatively close blade body in portion.
5. the stator blade of axial flow blower according to claim 4, which is characterized in that
One end of the relatively close blade body is to its other end along the lug boss, the molded line in the rectification face area with it is described
The axis of stator blade is parallel.
6. the stator blade of the axial flow blower according to claim 1,4 or 5, which is characterized in that
When it includes water conservancy diversion cambered surface area and rectification face area to be located at the surface of the pressure surface side on the lug boss, along the protrusion
To its other end, the molded line in water conservancy diversion cambered surface area is crest curve for one end of the relatively close blade body in portion.
7. the stator blade of the axial flow blower according to claim 1,4 or 5, which is characterized in that
When it includes water conservancy diversion cambered surface area and rectification face area to be located at the surface of the pressure surface side on the lug boss, along the protrusion
One end of the relatively close blade body meets to its other end, the length L of the lug boss in portion：L≤a+r, wherein a is
Width of the rectification face area on another extreme direction along one end of the relatively close blade body to the rectification face area, r
For the radius of curvature in water conservancy diversion cambered surface area.
8. the stator blade of axial flow blower according to claim 7, which is characterized in that
One end of the relatively close blade body meets to its other end, the length L of the lug boss along the lug boss：L
=a+r.
9. the stator blade of axial flow blower according to any one of claim 1 to 5, which is characterized in that
One end of the relatively close blade body meets to its other end, the length L of the lug boss along the lug boss：B/
9≤L≤B/8, wherein B is the air line distance between the leading edge and the rear of blade body of the blade body.
10. the stator blade of axial flow blower according to any one of claim 1 to 5, which is characterized in that
The maximum value d of the thickness of the lug boss meets：B/31≤d≤2B/31, wherein B is the leading edge and leaf of the blade body
Air line distance between the rear of sheet body.
11. the stator blade of axial flow blower according to any one of claim 1 to 5, which is characterized in that
The maximum value d of the thickness of the lug boss meets：3mm≤d≤6mm.
12. the stator blade of axial flow blower according to any one of claim 1 to 5, which is characterized in that
The blade body is connect with the arc-shaped transition of the lug boss.
13. the stator blade of axial flow blower according to any one of claim 1 to 5, which is characterized in that
One end that the blade body is relatively distant from the lug boss is concordant with the air outlet of the axial flow blower.
14. the stator blade of axial flow blower according to any one of claim 1 to 5, which is characterized in that
Attached wall supplementary structure is provided on the surface of the lug boss, wherein the attached wall supplementary structure includes golf spherical surface
Pit, coarse lines and/or the fair current groove extended along fluid flow direction.
15. a kind of axial flow blower, which is characterized in that including：
Wind collection；
Movable vane is arranged in the upstream space of the wind collection；
Stator blade as described in any one of claim 1 to 14 is arranged in the downstream space of the wind collection.
16. a kind of air conditioner, which is characterized in that including：
Air duct and the air outlet being connected to the air duct；
Axial flow blower as claimed in claim 15 is located in the air duct, and the axis of the wind collection of the axial flow blower hangs down
Directly in the axis of the air outlet.
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|---|---|---|---|
| CN201610550856.5A CN106015104B (en) | 2016-07-13 | 2016-07-13 | Air conditioner, axial flow blower and its stator blade |
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| CN201610550856.5A CN106015104B (en) | 2016-07-13 | 2016-07-13 | Air conditioner, axial flow blower and its stator blade |
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| CN106015104B true CN106015104B (en) | 2018-11-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131622A (en) * | 2017-05-23 | 2017-09-05 | 栗思扬 | A kind of spiral-flow type air-conditioner air outlet device |
| CN107588046A (en) * | 2017-08-28 | 2018-01-16 | 珠海格力电器股份有限公司 | Blower fan structure and there is its air conditioner |
| CN107654420B (en) * | 2017-10-30 | 2024-04-09 | 广东美的制冷设备有限公司 | Air conditioner, axial flow fan and air duct thereof |
| US11884128B2 (en) | 2017-12-18 | 2024-01-30 | Carrier Corporation | Fan stator construction to minimize axial depth |
| CN108661946B (en) * | 2018-07-09 | 2023-09-01 | 广东美的环境电器制造有限公司 | Fan with fan body |
| CN110332149B (en) * | 2019-07-25 | 2024-03-12 | 洛阳北玻三元流风机技术有限公司 | Axial flow fan convenient to simulate aerial flying man through gas thrust |
| CN111156203A (en) * | 2020-01-20 | 2020-05-15 | 珠海格力电器股份有限公司 | Despin structure, mixed flow fan assembly and air conditioner |
| CN111441996B (en) * | 2020-04-07 | 2021-01-29 | 北京航空航天大学 | Noise suppression fan |
| CN112432358B (en) * | 2020-10-29 | 2022-03-29 | 青岛海尔空调器有限总公司 | Amortization subassembly and air conditioning system |
-
2016
- 2016-07-13 CN CN201610550856.5A patent/CN106015104B/en active Active
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| CN106015104A (en) | 2016-10-12 |
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