CN106015104A - Air conditioner, axial flow fan and stator blade of axial flow fan - Google Patents
Air conditioner, axial flow fan and stator blade of axial flow fan Download PDFInfo
- Publication number
- CN106015104A CN106015104A CN201610550856.5A CN201610550856A CN106015104A CN 106015104 A CN106015104 A CN 106015104A CN 201610550856 A CN201610550856 A CN 201610550856A CN 106015104 A CN106015104 A CN 106015104A
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- China
- Prior art keywords
- air
- flow
- lobe
- axial flow
- blade body
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides an air conditioner, an axial flow fan and a stator blade of the axial flow fan. The stator blade of the axial flow fan comprises a blade body and a lug boss. Particularly, the blade body has a pressure surface and a suction surface. The pressure surface is concave. The suction surface is convex. The blade body is provided with a front edge and a rear edge. The lug boss is arranged at the rear edge of the blade body. The lug boss protrudes from the pressure surface of the blade body. The stator blade of the axial flow fan, provided by the invention, has the advantages that air flow at an air outlet of the axial flow fan can be straightened, the separation phenomenon generated at the air inlet of the axial flow fan can be prevented, trailing edge loss is reduced, and the purpose of reducing the kinetic energy loss of the air flow and the noise of the air flow are achieved.
Description
Technical field
The present invention relates to air-conditioning equipment field, in particular to stator blade, a kind of axle of a kind of axial flow blower
Flow fan and a kind of air-conditioner.
Background technology
Existing indoor set especially cabinet-type air conditioner typically use centrifugal blower or cross flow fan as wind pushing mechanism, but
Design along with the aspect such as heat pump performance, structure is deepened continuously and product quality requirement gradually stepped up,
Axial flow blower enters the sight line of research staff with its advantage such as high efficiency, Wind Volume.But find through practice,
When axial flow blower is applied in cabinet air-conditioner, as it is shown in figure 1, movable vane is positioned at the B' side of D' position,
Stator blade is positioned at the A' side of D' position, and air moves from B' lateral A' effluent, wherein, at the P1' of position, i.e.
At the posterior border position of the stator blade of respective shaft flow fan, bigger Trailing Edge Loss can be produced, not only can reduce air-flow
Flow velocity and noise can be produced, additionally, as it is shown in figure 1, at the P2' of position, i.e. respective shaft flow fan stator blade
The downstream position of trailing edge, air-flow there will be left avertence situation significantly, and this can not meet existing air-conditioning obviously
Cabinet-type air conditioner must be perpendicular to air outlet for exit flow and penetrate this design requirement, cause at distance air-conditioning cabinet
Wind sense at the air outlet remote position of machine is inconspicuous or calm sense, and for axial flow blower at non-air-conditioning cabinet
When using in machine such as air-conditioner outdoor unit, depurator, left avertence fluid can cause noise problem with air channel collision, and
A large amount of left avertence fluids and axial flow of fluid collision can cause turbulent flow phenomenon, and this easily strengthens noise effect, and can phase
Answer ground to reduce the flow of axial flow of fluid, cause the air output of cabinet air-conditioner to decline.
Summary of the invention
In order to solve at least one above-mentioned technical problem, it is an object of the present invention to provide a kind of axial flow wind
The stator blade of machine.
A kind of axial flow blower of offer is provided.
It is yet a further object of the present invention to provide a kind of air-conditioner.
For achieving the above object, the embodiment of first aspect present invention provides the stator blade of a kind of axial flow blower,
Including: blade body, there is the pressure face in inner concavity and the suction surface in outer gibbosity, described blade body has
Leading edge and trailing edge；Lobe, is arranged at the trailing edge of described blade body, and described lobe is to described blade
The pressure face side of body is protruded.
It is understood that axial flow blower comprises movable vane and stator blade, movable vane is driven by motor and rotates with band
Dynamic air flowing, stator blade is still in the downstream of relative movable vane, and the leading edge of the blade body of stator blade is positioned at blade body
The side of upper relatively close movable vane, the trailing edge of the blade body of stator blade is positioned on blade body and is relatively distant from the one of movable vane
Side, fluid flows along the surface of blade body from the leading edge of blade body to the trailing edge of blade body, and blade body is for right
The air-flow blown at movable vane carries out cutting, accelerating and diffusion.
The stator blade of the axial flow blower that the present invention provides, the side that the blade body of stator blade has pressure face is pressure
Side, face, the side that blade body has suction surface is suction surface side, wherein, arranges lobe to pressure face side
Protrude, with before the air outlet of axial flow blower formed convergence structure, air-flow along the axially-movable of stator blade and with
When lobe is met, utilize air-flow air-flow can be made along the protrusion surface of lobe along the attached wall effect of lobe
Flowing, so that the flow direction of air-flow changes, so on the one hand can greatly suppress cutting in Primordial Qi stream
To flow velocity, make the flow tendency of air-flow be remedied in the axial direction of stator blade, thus avoid the problem of air-flow left avertence,
So can realize gathering of air-flow, reduce wind loss, the air-out relatively increased in the axial direction of axial flow blower
Amount, and the air-flow at by the air outlet of axial flow blower can be realized lead directly, so it is used for air-conditioner when stator blade
Time can realize air-flow be exactly perpendicularly to air-conditioner air outlet injection, meet the design requirement of air-conditioning products；
And due to the change of air flow direction so that prior art occur the separation at the trailing edge of stator blade suction surface existing
As effectively being contained, decrease Trailing Edge Loss, it is achieved reduce the kinetic energy rejection of air-flow and reduce air-flow
The purpose of noise.
It addition, the stator blade of the axial flow blower in above-described embodiment of present invention offer can also have following additional
Technical characteristic:
In one embodiment of the invention, in described lobe one end of relatively close described blade body to
Its other end, the protrusion height of described lobe is that seriality is incremented by or is stepped incremental.
In this programme, the protrusion height one end of relatively close blade body along it arranging lobe is another to it
One end is that seriality is incremented by or is stepped incremental, so can be to face blade body institute in relatively reduced lobe
In the gradient on the surface of side, so while meeting the design requirement of lobe height, projection can be avoided
There is the local resistance loss that sudden change causes in the height of projection size in portion, and so on the one hand can ensure that air-flow is convex
Play the adhesive ability on protrusion surface, portion, and air-flow can be made at air-flow during this lobe Surface runoff
Tangential velocity is consumed, it is achieved the flow tendency of air-flow be remedied in the axial direction of stator blade, on the other hand, and can
Greatly reduce air-flow and act perpendicularly to the component on lobe surface, reduce the air-flow kinetic energy when flowing through stator blade
Loss, reduces energy consumption and the noise of axial flow blower.
In any of the above-described technical scheme, it is preferable that in described lobe the one of relatively close described blade body
It is highly be gradually increased smooth that end is positioned at the surface of described pressure face side on its other end, described lobe
Transition cambered surface or for be highly gradually increased seamlessly transit inclined-plane.
In this programme, one end of relatively close blade body is set in lobe to its other end, lobe
The surface towards blade body side be highly be gradually increased seamlessly transit cambered surface or for the most gradually
Increase seamlessly transits inclined-plane, and this so can be made to seamlessly transit cambered surface or seamlessly transit inclined-plane except as air-flow
Attached wall outside, it is also possible to play the effect of following current and rectification, so can not only promote air-flow in lobe
The adhesive ability on surface, efficient hardening is to the break-in of air-flow and water conservancy diversion effect, to realize becoming the flowing of air-flow
Gesture is remedied in the axial direction of stator blade, and can correspondingly reduce air-flow act perpendicularly to lobe surface point
Power, reduces air-flow kinetic energy rejection on stator blade to greatest extent, reduces energy consumption and the noise of axial flow blower.
In any of the above-described technical scheme, it is preferable that in described lobe the one of relatively close described blade body
Hold to its other end, described in seamlessly transit the molded line of cambered surface be concave curve.
In this programme, arrange in lobe that one end of relatively close blade body is to its other end, smoothed
The molded line crossing cambered surface is concave curve, so arranges and can improve air-flow to greatest extent on lobe surface
Adhesive ability, to strengthen the break-in to air-flow and water conservancy diversion effect, to realize being remedied to the flow tendency of air-flow
In the axial direction of stator blade.
In one embodiment of the invention, the surface described lobe being positioned at described pressure face side includes:
Water conservancy diversion cambered surface district, the one end in described water conservancy diversion cambered surface district is connected with the described pressure face transition of described blade body；Whole
Stream interface district, the other end transition with described water conservancy diversion cambered surface district is connected, wherein, in described water conservancy diversion cambered surface district
High position is not higher than the position in described rectification face district.
In such scheme, the surface arranging lobe includes rectification face district and water conservancy diversion cambered surface district, wherein, flows through
The air-flow on lobe surface can flow successively through water conservancy diversion cambered surface district and rectification face district, and water conservancy diversion cambered surface district is arc surfaced
Shape, is mainly used in the tangential variations along guide face district of velocity attitude when making air-flow flow along guide face district, and
The tangential velocity of air-flow is made to be consumed at air-flow along water conservancy diversion cambered surface district flow process；Rectification face district is mainly along gas
The flow direction of stream is smooth to be extended, and during flowing along rectification face district when air-flow, utilizes district pair, rectification face
Air-flow carries out rectification and following current, so can not only consume the tangential velocity of air-flow further, further by gas
The flow tendency of stream is remedied in the axial direction of stator blade, and can reduce the less turbulence of air-flow, reduces air-flow and exists
Flow through kinetic energy rejection during stator blade, reduce energy consumption and the noise of axial flow blower.
In technique scheme, it is preferable that in described lobe one end of relatively close described blade body to
Its other end, the molded line in described rectification face district is straight line.
In such scheme, rectification face district is set in one end of blade body relatively close in lobe to its another
Molded line on extreme direction is straight line, and this straight line can be parallel with the axis of stator blade or intersect, it is to be understood that
When the axes intersect of this straight line and stator blade, both angles are unsuitable excessive, with avoid rectification face district cross steep and
The problem being difficult to play the rectification effect in rectification face district；It is straight line by arranging the molded line in rectification face district, permissible
Make air-flow move along a straight line along rectification face district, to reach the purpose to air-flow rectification and following current, so can reduce
The less turbulence of air-flow, reduce the air-flow kinetic energy rejection when flowing through stator blade, reduce axial flow blower energy consumption and
Noise.
In technique scheme, it is preferable that in described lobe one end of relatively close described blade body to
Its other end, the molded line in described rectification face district is parallel with the axis of described stator blade.
In this programme, the molded line arranging rectification face district is parallel with the axis of stator blade, and this on the one hand can be necessarily
Suppress the tangential flow velocity of air-flow in degree, on the other hand can greatly the flow tendency of air-flow be remedied to axially
On, so to reduce the air-flow kinetic energy rejection when flowing through stator blade, reduce energy consumption and the noise of axial flow blower.
In any of the above-described technical scheme, in described lobe, one end of relatively close described blade body is another to it
One end, the molded line in described water conservancy diversion cambered surface district is crest curve.
In such scheme, one end of relatively close blade body is set in lobe to its other end, water conservancy diversion arc
The molded line in face district is crest curve, and air-flow is guided by the arcuate surface utilizing crest curve to be constructed, relative to
For plane or concave structure, arcuate surface is more preferable with the transition effect in rectification face district, can beneficially reduce lobe
The air-flow flow resistance on surface, and under conditions of identical water conservancy diversion length, air-flow is along the water conservancy diversion cambered surface district in outer gibbosity
During the flowing of territory, attached wall effect is more preferable, is so more conducive to the consumption to air-flow tangential velocity, right to optimize further
The rectification effect of air current flow trend, it is achieved gathering of air-flow, reduces wind loss and noise, relative increases
Air output on Zhou Xiang, and so can improve air-flow at the air outlet to axial flow blower lead straight effect, make
Air-flow can be exactly perpendicularly to the air outlet injection of air-conditioner after refraction, and the design meeting air-conditioning products is wanted
Ask.
In any of the above-described technical scheme, in described lobe, one end of relatively close described blade body is another to it
One end, length L of described lobe meets: L≤a+r, wherein, a is that described rectification face district is along phase
To the width on the other end direction in described rectification face district near one end of described blade body, r be described in lead
The radius of curvature in stream cambered surface district.
It is understood that in length L of lobe less than or equal to width a and the water conservancy diversion arc in rectification face district
During the radius of curvature r sum in face district, it is possible to ensure not have extra projective structure in water conservancy diversion cambered surface district,
And it is beneficial to the flatness ensureing rectification face district with water conservancy diversion cambered surface district joining place, ensure the rectification to air-flow well
Effect.
In any of the above-described technical scheme, in described lobe, one end of relatively close described blade body is another to it
One end, length L of described lobe meets: L=a+r.
In any of the above-described technical scheme, in described lobe, one end of relatively close described blade body is another to it
One end, length L of described lobe meets: B/9≤L≤B/8, wherein, before B is described blade body
Air line distance between edge and the trailing edge of blade body.
In this programme, arrange between the leading edge that length L is blade body and the trailing edge of blade body of lobe
Air line distance B 1/9～1/8, so can according to the concrete size of stator blade guarantee lobe length fit
Preferably, make air-flow have suitable attached wall path during flowing through lobe, so can avoid lobe
Curtailment and do not have the problem to air-flow break-in, simultaneously, it is possible to avoid that lobe length is excessive causes gas
The problem that flow resistance loss is excessive, herein, by being limited to the leading edge of blade body by length L of lobe
And 1/9 of air line distance B between the trailing edge of blade body～1/8, airflow passes lobe can be fully ensured that
Time, the tangential velocity of air-flow is fully dissipated, and the axial flow velocity influence of air-flow is less, with in reality
The drag losses of air-flow is made to minimize while now air-flow being guided.
In any of the above-described technical scheme, the maximum d of the thickness of described lobe meets: B/31≤d≤
2B/31, wherein, B is the air line distance between leading edge and the trailing edge of blade body of described blade body.
In this programme, the maximum d of the thickness arranging lobe is B/31≤d≤2B/31, so may be used
Guarantee that with the concrete size according to stator blade the height of lobe is suitable, make air-flow in the Surface runoff along lobe
Time there is suitable climbing height to guarantee that air flow direction changes, so can avoid the projection due to lobe
The power that excessive height causes whole Ye Daonei axial dimension variable gradient excessive and causes air-flow vortex to cause
Loss, the height of projection that simultaneously can avoid lobe is too low and does not has the problem to air-flow break-in, herein,
By the maximum d of the thickness of lobe is limited to B/31≤d≤2B/31, air-flow can be fully ensured that
When flowing through lobe, the tangential velocity of air-flow is fully dissipated, and the axial flow velocity influence of air-flow is relatively
Little, to make the drag losses of air-flow minimize while realizing air-flow is guided.
In any of the above-described technical scheme, the maximum d of the thickness of described lobe meets: 3mm≤d≤
6mm。
In this programme, the maximum d of the thickness arranging lobe is 3mm～6mm, on the one hand, due to
The thickest position of lobe is adjacent to the air outlet of axial flow blower, and the maximum d of the thickness arranging lobe is little
In 6mm, so can avoid occurring at the trailing edge of suction surface segregation phenomenon further, reduce tail and damage
Lose, on the other hand, the maximum d of thickness of lobe is set not less than 3mm, it is to avoid lobe height
Not enough and cause air flow guiding effect is reduced problem or the thinnest problem causing intensity not enough of lobe.
In any of the above-described technical scheme, the transition curved with described lobe of described blade body is connected.
In this programme, blade body transition curved with lobe is set and is connected, so can improve whole leaf
Road structural continuity in the axial direction, it is to avoid whole leaf road change in size gradient vertically is excessive causes air-flow to hinder
The problem that power loss increases, it is achieved reduce the kinetic energy rejection of air-flow and reduce the purpose of pneumatic noise.
In any of the above-described technical scheme, described lobe is relatively distant from one end of described blade body and described axle
The air outlet of flow fan is concordant.
In this programme, it is flat with the air outlet of axial flow blower that one end that lobe is relatively distant from blade body is set
Together, air-flow so can be made directly to depart from stator blade after flowing through lobe, thus reduce the back pressure in lobe
The turbulent flow impact of side, it is achieved reduce the kinetic energy rejection of air-flow and reduce the purpose of pneumatic noise.
In any of the above-described technical scheme, the surface of described lobe is provided with attached wall supplementary structure, wherein,
Described attached wall supplementary structure includes golf spherical surface pit, coarse lines and/or extends along fluid flow direction
Following current groove.
In this programme, lobe arranges such as golf spherical surface pit, coarse lines and/or along fluid
The attached wall supplementary structures such as the following current groove that flow direction extends, so on the one hand can improve air-flow in lobe
The adhesion effect on surface, makes the flow direction of air-flow significantly be changed, thus realizes suppressing cutting in Primordial Qi stream
To flow velocity, the flow tendency of air-flow is made to be remedied in the axial direction of stator blade, it is to avoid the problem of air-flow left avertence；Separately
On the one hand, the wake flow scope on rear side of lobe can be reduced, so can reduce the back pressure of lobe, reduction
Flow resistance, reduces the kinetic energy rejection of air-flow and reduces the purpose of pneumatic noise.
The embodiment of second aspect present invention provides a kind of axial flow blower, including: wind collection；Movable vane, if
Put in the upstream space of described wind collection；Stator blade described in any of the above-described technical scheme, is arranged on described
In the downstream space of wind collection.
The axial flow blower that the present invention provides, when the air-flow flowed out is along stator blade Surface runoff, utilizes gas at movable vane
The stream attached wall effect to lobe, makes air-flow along the Surface runoff of lobe so that the flow direction of air-flow becomes
Change, the tangential flow velocity of air-flow so can be made to be suppressed and make the tangential flow tendency of air-flow be remedied to stator blade
Axial direction on, thus avoid the problem of air-flow left avertence, so can realize gathering of air-flow, reduce product
Air output on wind loss, relatively increase product are axial, and can realize at the air outlet of axial flow blower
Air-flow lead directly, when product applies to air-conditioning products, it is possible to achieve make air-flow be exactly perpendicularly to air-conditioner
Air outlet penetrates, and meets the design requirement of air-conditioning products；And the flow direction of air-flow is made due to the setting of lobe
Change, so can contain the segregation phenomenon occurred at axial flow blower air outlet, reduce Trailing Edge Loss,
Realize reducing the kinetic energy rejection of air-flow and reducing the purpose of pneumatic noise.
The embodiment of third aspect present invention provides a kind of air-conditioner, including: air channel and with described air channel even
Logical air outlet；Axial flow blower described in technique scheme, is positioned in described air channel, and described axial flow
The axis of the wind collection of blower fan is perpendicular to the axis of described air outlet.
The air-conditioner that the present invention provides, utilizes the air-flow attached wall effect to lobe, makes outflow at movable vane
The tangential flow velocity of air-flow can be suppressed on stator blade, the flow tendency of air-flow is remedied in the axial direction of stator blade,
Thus avoid the problem of air-flow left avertence, so by air-flow reflect after, air-flow can be made to be exactly perpendicularly to air-conditioning
The air outlet injection of device, meets the design requirement of air-conditioning products.
Alternatively, air-conditioner is cabinet air-conditioner or air-conditioner outdoor unit.
Additional aspect and the advantage of the present invention will become obvious in following description part, or pass through the present invention
Practice recognize.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from combining the accompanying drawings below description to embodiment
Will be apparent from easy to understand, wherein:
Fig. 1 is the numerical simulation cloud atlas of the local, air channel of air-conditioner in prior art；
Fig. 2 is the structural representation of axial flow blower described in one embodiment of the invention；
Fig. 3 be M-M shown in Fig. 2 to sectional structure schematic diagram；
Fig. 4 is the structural representation under the first visual angle of the lobe described in first embodiment of the invention；
Fig. 5 is the structural representation under the second visual angle of the lobe described in first embodiment of the invention；
Fig. 6 is the structural representation under the 3rd visual angle of the lobe described in first embodiment of the invention；
Fig. 7 is the structural representation under the first visual angle of the lobe described in second embodiment of the invention；
Fig. 8 is the structural representation under the second visual angle of the lobe described in second embodiment of the invention；
Fig. 9 is the structural representation under the 3rd visual angle of the lobe described in second embodiment of the invention；
Figure 10 is the sectional structure schematic diagram of air-conditioner described in one embodiment of the invention；
Figure 11 is the numerical simulation cloud atlas of the local, air channel of air-conditioner described in one embodiment of the invention.
Wherein, the corresponding relation between the reference in Fig. 1 and component names is:
Side, A' stator blade place, side, B' movable vane place, C' tunnel inlet position, between D' movable vane and stator blade between
Every position, the posterior border position of P1' stator blade, the downstream position of P2' stator blade trailing edge；
Wherein, the corresponding relation between the reference in Fig. 2 to Figure 11 and component names is:
10 stator blades, 11 blade bodies, 111 leading edges, 112 trailing edges, 12 lobe, 121 rectification face districts, 122
Water conservancy diversion cambered surface district, 123 first is protruding, and 124 second is protruding, 20 movable vanes, 30 wind collections, 40 air channel heads
Portion, 41 air outlets, 50 air guide structures；
Side, A stator blade place, side, C movable vane place, the downstream position of P1 axial flow blower, after P2 lobe
Side position.
Detailed description of the invention
In order to be more clearly understood that the above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the accompanying drawings and
The present invention is further described in detail by detailed description of the invention.It should be noted that in the feelings do not conflicted
Under condition, the feature in embodiments herein and embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but, this
Bright can implement to use other to be different from other modes described here, therefore, the protection model of the present invention
Enclose and do not limited by following public specific embodiment.
Referring to Fig. 2 to Fig. 9, the most described axial flow blower and stator blade thereof are described.
The axial flow blower that embodiments of the invention provide, as shown in Figures 2 and 3, axial flow blower comprises movable vane
20 and stator blade 10, movable vane 20 is driven by motor and rotates to drive air to flow, and stator blade 10 is still in
The downstream of movable vane 20 relatively, the leading edge 111 of the blade body 11 of stator blade 10 is positioned on blade body 11 relatively
Near the side of movable vane 20, the trailing edge 112 of blade body 11 is positioned on blade body 11 and is relatively distant from movable vane 20
Side, fluid flows to trailing edge 112 along the surface of blade body 11 from leading edge 111, and blade body 11 is used for
The air-flow blown at movable vane 20 is cut, accelerates and diffusion.
In the stator blade described in some embodiments of the invention, as shown in Fig. 2 to Fig. 9, stator blade 10 includes leaf
Lamellar body 11 and lobe 12.
Wherein, blade body 11 has the pressure face in inner concavity and the suction surface in outer gibbosity, blade body 11
There is leading edge and trailing edge；Lobe 12 is arranged at the trailing edge 112 of blade body 11, and lobe 12 to
The pressure face side of blade body 11 is protruded.Preferably, blade body 11 and lobe 12 are formed in one structure.
The stator blade 10 of the axial flow blower that the present invention provides, the blade body 11 of stator blade 10 has pressure face
Side is pressure face side, and the side that blade body 11 has suction surface is suction surface side, wherein, arranges convex
Play portion 12 to protrude to pressure face side, to form convergence structure before the air outlet of axial flow blower, on air-flow edge
The axially-movable of stator blade 10 when meeting with lobe 12, utilizes air-flow along the attached wall effect of lobe 12
Can make air-flow along the protrusion Surface runoff of lobe 12 so that the flow direction of air-flow changes, so
On the one hand can greatly suppress the tangential flow velocity in Primordial Qi stream, make the flow tendency of air-flow be remedied to stator blade
In the axial direction of 10, thus avoid the problem of air-flow left avertence, so can realize gathering of air-flow, reduce wind
Amount loss, the air output relatively increased in the axial direction of axial flow blower, and can realize the air-out of axial flow blower
Air-flow at Kou is led directly, so can realize air-flow when stator blade 10 is used for air-conditioner and be exactly perpendicularly to sky
Adjust the air outlet injection of device, meet the design requirement of air-conditioning products；And due to the change of air flow direction so that
Prior art occurs the segregation phenomenon at the trailing edge of stator blade 10 suction surface effectively contained, reduce
Trailing Edge Loss, it is achieved reduce the kinetic energy rejection of air-flow and reduce the purpose of pneumatic noise.
Specifically, the surface in this programme protrusions portion 12 is in the structure protruded towards pressure face side, fluid
With the mantle friction of lobe 12 when flowing through lobe 12 surface so that the local velocity of fluid reduces, pressure
Power increases, and i.e. and then make fluid form the attached wall effect to lobe 12 surface, wherein, fluid is along convex
When playing the climbing of surface, portion 12, flow direction constantly changes, and for the fluid of tangential flowing, due to edge
When lobe 12 tangentially flows, path length easily makes tangential flow velocity be consumed, and lobe 12 is to tangential fluid
Guiding can make the flow direction of fluid be corrected in the axial direction of stator blade 10, it is achieved by the flow direction of fluid
Lead straight.
More specifically, prior art also has by increasing stator blade chord length, amendment stator blade depression radian
Mode realizes the purpose straight to conductance of working off one's feeling vent one's spleen, and compared with which, air-flow is being led straight effect by this programme
On become apparent from, and this programme need not elongate stator blade, so can save body volume, make product exist
It is respectively provided with advantage on structure design, appearance design and cost；It addition, prior art also has by increasing quiet
The stator blade quantity of leaf affects the main flow direction of air-flow in the way of Shi Ye road narrowed width, realizes air-flow
The flow direction is led directly, and compared with which, this programme becomes apparent from straight effect leading air-flow, and this programme
Without increasing leaf road quantity, so can greatly reduce the flow resistance of air-flow, thus the power reducing air-flow damages
Lose, reduce pneumatic noise.
In first embodiment of the present invention, as shown in Figures 4 to 6, relatively lean in lobe 12
One end of nearly blade body 11 to its other end, i.e. as described in Fig. 4 and Fig. 6 along the front end of lobe to it
Rear end, the protrusion height of lobe 12 is that seriality is incremented by or is stepped incremental.So can relatively subtract
Face the gradient on the surface of blade body 11 side in tab 12, so meet lobe 12
While highly design requires, can avoid the height of projection size of lobe 12 that the office that sudden change causes occurs
Portion's drag losses, so on the one hand can ensure that air-flow protrudes the adhesive ability on surface in lobe 12, and
The tangential velocity of air-flow can be made at air-flow to be consumed during this lobe 12 Surface runoff, it is achieved by gas
The flow tendency of stream is remedied in the axial direction of stator blade 10, on the other hand, can greatly reduce air-flow and vertically make
For the component on lobe 12 surface, reduce the air-flow kinetic energy rejection when flowing through stator blade 10, reduce axial flow
The energy consumption of blower fan and noise.
Preferably, in lobe 12, one end of relatively close blade body 11 is to its other end, i.e. such as Fig. 4
With described in Fig. 6 along the front end of lobe to its rear end, the surface that lobe 12 is positioned at pressure face side is
Highly be gradually increased seamlessly transits cambered surface, it is highly preferred that as shown in Figure 6, in lobe 12 relatively
Near one end of blade body 11 to its other end, this molded line seamlessly transitting cambered surface is concave curve；Certainly,
This programme is not limited to the present embodiment, and in addition, such as, the surface that also can arrange lobe 12 is
Highly be gradually increased seamlessly transits inclined-plane, or, on the surface of lobe 12 for seamlessly transitting cambered surface
Time, it is possible to one end of relatively close blade body 11 in lobe 12 is set and, to its other end, seamlessly transits
The molded line of cambered surface is crest curve.
In this programme, one end of relatively close blade body 11 is set in lobe 12 to its other end,
The surface towards blade body 11 side of lobe 12 be highly be gradually increased seamlessly transit cambered surface or
Seamlessly transit inclined-plane for be highly gradually increased, this so can be made to seamlessly transit cambered surface or seamlessly transit inclined-plane and remove
Outside as the attached wall of air-flow, it is also possible to play the effect of following current and rectification, so can not only promote gas
The stream adhesive ability on lobe 12 surface, efficient hardening is to the break-in of air-flow and water conservancy diversion effect, to realize
The flow tendency of air-flow is remedied in the axial direction of stator blade 10, and can correspondingly reduce air-flow perpendicular acting
In the component on lobe 12 surface, reduce air-flow kinetic energy rejection on stator blade 10 to greatest extent, reduce
The energy consumption of axial flow blower and noise.
In first embodiment of the present invention, it is preferable that as shown in Figs. 4-6, in lobe 12
One end of relatively close blade body 11 is to its other end, i.e. along before lobe as described in Fig. 4 and Fig. 6
End is to its rear end, and length L of lobe 12 meets: B/9≤L≤B/8, wherein, B is blade body 11
Leading edge 111 and the trailing edge 12 of blade body 11 between air line distance.Herein, by by lobe 12
Length L be limited to the air line distance between the leading edge 111 of blade body 11 and the trailing edge 12 of blade body 11
The 1/9～1/8 of B, when can fully ensure that airflow passes lobe 12, the tangential velocity of air-flow is fully consumed
Dissipate, and the axial flow velocity influence of air-flow is less, to make air-flow while realizing air-flow is guided
Drag losses minimizes.
In first embodiment of the present invention, it is preferable that as shown in Figures 4 to 6, lobe 12
The maximum d of thickness meets: B/31≤d≤2B/31.Herein, by by the thickness of lobe 12
Big value d is limited to B/31≤d≤2B/31, when can fully ensure that airflow passes lobe 12, air-flow
Tangential velocity is fully dissipated, and the axial flow velocity influence of air-flow is less, to lead air-flow in realization
The drag losses making air-flow while to minimizes.
In one particular embodiment of the present invention, as it is shown on figure 3, be relatively distant from blade in lobe 12
One end of body 11 is concordant with the air outlet of axial flow blower, i.e. along after lobe as described in Fig. 4 and Fig. 6
Holding concordant with the air outlet of axial flow blower, wherein, the maximum d of the thickness arranging lobe 12 meets:
3mm≤d≤6mm, so can avoid occurring at the air outlet of axial flow blower segregation phenomenon further,
Reduce Trailing Edge Loss, and lobe 12 can be avoided highly not enough and cause reduce air flow guiding effect is asked
Topic or the thinnest problem causing intensity not enough of lobe 12.
In first embodiment of the present invention, it is preferable that blade body 11 and the curved transition of lobe 12
Connect, so can improve whole leaf road structural continuity in the axial direction, it is to avoid whole leaf road chi vertically
Very little variable gradient is excessive causes the problem that gas-flow resistance loss increases, it is achieved reduce air-flow kinetic energy rejection and
Reduce the purpose of pneumatic noise.
The air channel of the air-conditioner being provided with stator blade 10 described in first embodiment of the invention is carried out Numerical-Mode
Intending, this sentences numerical simulation and obtains simulation cloud atlas as shown in figure 11 to quiet in first embodiment of the invention
The effect of leaf 10 application occasion explains.
Illustrating that the flow field situation of local, air channel in Figure 11, wherein, the dotted line signal between A and C is quiet
Leaf 10 and the boundary position of movable vane 20, specifically, A illustrates side, stator blade 10 place, C to illustrate movable vane 20
Side, place, air-flow from C effluent to A side, it addition, in Figure 11 P1 signal axial flow blower downstream position,
The rearward position of P2 signal lobe 12, compared with the flow field in Fig. 1, P1 position in fig. 11,
Left avertence phenomenon during air-flow is moved by C lateral A effluent substantially weakens, it is believed that from stator blade 10
The tangential velocity of the air-flow that air stream outlet flows out is consumed the most completely, makes the wind of stator blade 10 downstream position
To approximating linearly in the flowing direction, understand in conjunction with Figure 10, owing to the tangential flow velocity of air-flow is consumed,
When air-flow the most linearly enters air channel head 40, in air channel head 40 can be avoided, tangential fluid occurs,
Thus avoid tangential fluid tangentially to be thrown away by centrifugal forces affect at the air outlet 41 in air channel and cause air-flow without
The problem that method is perpendicular to air outlet 41 injection in air channel.
Additionally, in the P2 position of Figure 11, it is seen that the scope in tail district is obviously reduced, and tail district is disorderly
Flow phenomenon is substantially contained, thus can unambiguously infer at this programme Axial-Flow fan outlet
Trailing Edge Loss is significantly reduced.
It addition, it can be seen from figure 1 that the flow velocity of the air-flow velocity at C' with P1' position is contrasted,
Speed difference front and back is at more than 4m/s, and as can be seen from Fig. 11, by the stream at movable vane 20 air flow inlet
Speed contrasts with the flow velocity of P1 position, and speed difference front and back is less than 3m/s, and the power of air-flow damages
Blind aobvious reduction, it is possible to product efficiency is effectively ensured.
In a second embodiment of the present invention, as shown in Figures 5 to 7, the surface of lobe 12 includes
Rectification face district 121 and water conservancy diversion cambered surface district 122.
Specifically, the one end in water conservancy diversion cambered surface district 122 is connected with the pressure face transition of blade body 11；Rectification face
District 121 is connected with the other end transition in water conservancy diversion cambered surface district 122, wherein, and the highest in water conservancy diversion cambered surface district 122
Position is not higher than the position in rectification face district 121.
In such scheme, the surface arranging lobe 12 includes rectification face district 121 and water conservancy diversion cambered surface district 122,
Wherein, the air-flow flowing through lobe 12 surface can flow successively through water conservancy diversion cambered surface district 122 and rectification face district 121,
Water conservancy diversion cambered surface district 122, in arc shape, is mainly used in speed when making air-flow flow along water conservancy diversion cambered surface district 122
Direction is along the tangential variations in water conservancy diversion cambered surface district 122, and makes along water conservancy diversion cambered surface district 122 flow process at air-flow
The tangential velocity of air-flow is consumed；Rectification face district 121 mainly extends along the flow direction of air-flow is smooth, to work as
During air-flow flows along rectification face district 121, utilize rectification face district 121 that air-flow is carried out rectification and following current,
So can not only consume the tangential velocity of air-flow further, further the flow tendency of air-flow is remedied to quiet
In the axial direction of leaf 10, and the less turbulence of air-flow can be reduced, reduce dynamic when flowing through stator blade 10 of air-flow
The loss of energy, reduces energy consumption and the noise of axial flow blower.
In a second embodiment of the present invention, as shown in Figure 7 to 9, relatively lean in lobe 12
One end of nearly blade body 11 to its other end, i.e. as described in Fig. 7 and Fig. 9 along the front end of lobe to it
Rear end, the molded line in rectification face district 121 is straight line.It is straight line by arranging the molded line in rectification face district 121, can
So that air-flow moves along a straight line along rectification face district 121, to reach the purpose to air-flow rectification and following current, so may be used
To reduce the less turbulence of air-flow, reduce the air-flow kinetic energy rejection when flowing through stator blade 10, reduce axial flow wind
The energy consumption of machine and noise.
Wherein, further preferably in lobe 12 one end of relatively close blade body 11 to its other end,
I.e. as described in Fig. 7 and Fig. 9 along the front end of lobe to its rear end, the molded line in rectification face district 121 and stator blade
The axis of 10 is parallel, and on the one hand this can suppress the tangential flow velocity of air-flow to a certain extent, on the other hand can
Greatly the flow tendency of air-flow is remedied on axially, so to reduce air-flow when flowing through stator blade 10
Kinetic energy rejection, reduces energy consumption and the noise of axial flow blower.More specifically, lobe 12 include cross section in
First projection 123 of rectangle, a surface of this first projection 123 is rectification face district 121, and this first
One limit in the cross section of protruding 123 constructs the molded line in described rectification face district 121.
Certainly, this programme may also set up the molded line in rectification face district 121 and the axes intersect of stator blade 10, make
One end the most relatively close slightly prominent blade body 11 of blade body 11 it is relatively distant from rectification face district 121
One end, it is to be understood that folder between the molded line in rectification face district 121 and the axis of stator blade 10 in the case of Gai
Angle is unsuitable excessive, is difficult to play the rectification effect in rectification face district 121 to avoid rectification face district 121 to cross steep
Problem, so design can make air-flow flow to be changed further during rectification face district 121 jet attached flow,
Strengthen with this and air-flow is led straight effect, and reduce the segregation phenomenon at axial flow blower air outlet further, subtract
Little Trailing Edge Loss.
In a second embodiment of the present invention, as shown in Figure 7 to 9, relatively lean in lobe 12
One end of nearly blade body 11 to its other end, i.e. as described in Fig. 7 and Fig. 9 along the front end of lobe to it
Rear end, the molded line in water conservancy diversion cambered surface district 122 is crest curve.More specifically, lobe 12 includes second
Protruding 124, second protruding 124 and first protruding 123 is integral type structure, wherein, and the second projection 124
On to face the surface of blade body 11 side be water conservancy diversion cambered surface district 122, the cross section of this second projection 124
On profile, the arc of position, corresponding water conservancy diversion cambered surface district 122 is crest curve, and is water conservancy diversion cambered surface district 122
Molded line.
In such scheme, one end of relatively close blade body 11 is set in lobe 12 to its other end,
The molded line in water conservancy diversion cambered surface district 122 is crest curve, and air-flow is led by the arcuate surface utilizing crest curve to be constructed
To, for plane or concave structure, arcuate surface is more preferable with the transition effect in rectification face district 121, can
Be beneficial to reduce the air-flow flow resistance on lobe 12 surface, and under conditions of identical water conservancy diversion length, air-flow along in
The water conservancy diversion cambered surface district 122 of outer gibbosity when flowing attached wall effect more preferable, so more conducively to air-flow tangential velocity
Consume, to optimize the rectification effect to air current flow trend further, it is achieved gathering of air-flow, reduce air quantity
Lose and noise, the relative air output increased on axially, and so can improve the air outlet to axial flow blower
That locates air-flow leads straight effect, makes air-flow can be exactly perpendicularly to the air outlet injection of air-conditioner after refraction, full
The design requirement of foot air-conditioning products.
In a second embodiment of the present invention, as shown in Figure 7 to 9, relatively lean in lobe 12
One end of nearly blade body 11 to its other end, i.e. as described in Fig. 7 and Fig. 9 along the front end of lobe to it
Rear end, length L of lobe 12 meets: L≤a+r, and wherein, a is that rectification face district 121 is along relatively
The width on the other end direction in rectification face district 121 near one end of blade body 11, r is water conservancy diversion cambered surface district
The radius of curvature of 122.
In a preferred embodiment of the invention, one end of relatively close blade body 11 in lobe 12
To its other end, i.e. as described in Fig. 7 and Fig. 9 along the front end of lobe to its rear end, lobe 12
Length L meets: L=a+r.
It is understood that in length L of lobe 12 less than or equal to the width a in rectification face district 121
During with the radius of curvature r sum in water conservancy diversion cambered surface district 122, it is possible to ensure not have in water conservancy diversion cambered surface district 122
Extra projective structure, and it is beneficial to the flatness ensureing rectification face district 121 with water conservancy diversion cambered surface district 122 joining place,
Ensure 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, along lobe 12
One end of upper relatively close blade body 11 is to its other end, i.e. along lobe as described in Fig. 7 and Fig. 9
Front end is to its rear end, and length L of lobe 12 meets: B/9≤L≤B/8, wherein, B is blade body
Air line distance between leading edge and the trailing edge of blade body 11 of 11.Herein, by the length by lobe 12
The 1/9～1/8 of air line distance B that degree L is limited between the leading edge of blade body 11 and the trailing edge of blade body 11,
When can fully ensure that airflow passes lobe 12, the tangential velocity of air-flow is fully dissipated, and air-flow
Axial flow velocity influence is less, minimum with the drag losses making air-flow while realizing guiding air-flow
Change.
In a specific embodiment of such scheme, preferably lobe 12 is in whole rectification face district 121
Thickness uniform, additionally, the thickness that lobe 12 is in position, rectification face district 121 is maximum and for d value,
Wherein, can the further preferably lobe 12 thickness d in position, rectification face district 121 and water conservancy diversion cambered surface district
Radius of curvature r of 122 is equal, i.e. d=r, and now, rectification face district 121 is along relatively close blade body 11
One end width a on the other end direction in rectification face district 121 meet: a=B/9～B/8-d.
In a second embodiment of the present invention, it is preferable that the maximum d of the thickness of lobe 12 meets:
B/31≤d≤2B/31, wherein, B be straight line between leading edge and the trailing edge of blade body of described blade body away from
From.Herein, by the maximum d of the thickness of lobe 12 is limited to B/31≤d≤2B/31, permissible
When fully ensuring that airflow passes lobe 12, the tangential velocity of air-flow is fully dissipated, and air-flow is axial
Flow velocity influence is less, to make the drag losses of air-flow minimize while realizing guiding air-flow.
In a second embodiment of the present invention, as shown in Figure 7 to 9, phase in rectification face district 121 is set
To concordant with the air outlet of axial flow blower with the other end that water conservancy diversion cambered surface district 122 is connected, i.e. in lobe 12
The one end (rear end) being relatively distant from blade body 11 is concordant with the air outlet of axial flow blower, wherein, arranges convex
Play in portion 12 thickness at rectification face district 121 and take maximum d, and preferably lobe 11 is in this position
Thickness d meets: 3mm≤d≤6mm.So can avoid further going out at the air outlet of axial flow blower
Existing segregation phenomenon, reduces Trailing Edge Loss, and lobe 12 can be avoided highly not enough and cause lead air-flow
Stream effect reduces problem or the problem of the thinnest stator blade 11 intensity deficiency caused of stator blade 11.
In a second embodiment of the present invention, it is preferable that as it is shown on figure 3, blade body 11 and lobe
12 curved transition connect, and so can improve whole leaf road structural continuity in the axial direction, it is to avoid whole
The excessive problem causing gas-flow resistance loss to increase of Ge Ye road change in size gradient vertically, it is achieved reduce air-flow
Kinetic energy rejection and reduce pneumatic noise purpose.
In any of the above-described technical scheme, the surface of lobe 12 is provided with attached wall supplementary structure (in figure not
Illustrate), wherein, attached wall supplementary structure includes golf spherical surface pit, coarse lines and/or flows along fluid
The following current groove that direction extends.
In this programme, lobe 12 is arranged such as golf spherical surface pit, coarse lines and/or edge stream
The attached wall supplementary structures such as the following current groove that body flow direction extends, so on the one hand can improve air-flow in projection
The adhesion effect on surface, portion 12, makes the flow direction of air-flow significantly be changed, thus realizes suppressing Primordial Qi stream
In tangential flow velocity, make the flow tendency of air-flow be remedied in the axial direction of stator blade 10, it is to avoid air-flow left avertence
Problem；On the other hand, the wake flow scope on rear side of lobe 12 can be reduced, so can reduce projection
The back pressure in portion 12, reduction flow resistance, reduce the kinetic energy rejection of air-flow and reduce the purpose of pneumatic noise.
As shown in Figures 2 and 3, the axial flow blower that the present invention provides, also include wind collection 30；Specifically,
Movable vane 20 is arranged in the upstream space of wind collection 30；Stator blade 10 is arranged on the downstream space of wind collection 30
In.
The axial flow blower that the present invention provides, when the air-flow flowed out at movable vane 20 is along stator blade 10 Surface runoff,
Utilize the air-flow attached wall effect to lobe 12, make air-flow along the Surface runoff of lobe 12 so that air-flow
The flow direction change, the tangential flow velocity of air-flow so can be made to be suppressed and make the tangential flow tendency of air-flow
It is remedied in the axial direction of stator blade 10, thus avoids the problem of air-flow left avertence, so can realize air-flow
Gather, reduce product wind loss, relatively increase product axially on air output, and can realize axle
Air-flow at the air outlet of flow fan is led directly, when product applies to air-conditioning products, it is possible to achieve make air-flow complete
Entirely it is perpendicular to the air outlet injection of air-conditioner, meets the design requirement of air-conditioning products；And due to lobe 12
Setting and make the flow direction of air-flow change, so can contain occur at axial flow blower air outlet point
From phenomenon, reduce Trailing Edge Loss, it is achieved reduce the kinetic energy rejection of air-flow and reduce the purpose of pneumatic noise.
As shown in Figure 10 and Figure 11, air-conditioner that the present invention provides, including: air channel and connect with air channel
Air outlet 41；Axial flow blower in technique scheme, axial flow blower is positioned in air channel, and axial flow blower
The axis of wind collection 30 be perpendicular to the axis of air outlet 41.
More specifically, as shown in Figure 10, air channel includes wind collection 30 and air channel head 40, wind collection
30 pass through Flange joint with air channel head 40, are provided with for controlling at the air outlet 41 of air channel head 40
The air guide structure 50 of air outlet 41 aperture, wherein, air-flow flows out along the axial of stator blade 10 from wind collection 30
In laggard inlet air road head 40, i.e. air-flow points to flowing along arrow shown in Figure 10, at air guide structure 50
During aperture maximum, the air-flow axially flowed along stator blade 10 is perpendicular to air channel after being refracted in air channel head 40
The air outlet 41 of head 40 penetrates.
The air-conditioner that the present invention provides, utilizes the air-flow attached wall effect to lobe 12, makes from movable vane 20
The tangential flow velocity of the air-flow that place flows out can be suppressed on stator blade 10, is remedied to quiet by the flow tendency of air-flow
In the axial direction of leaf 10, thus avoid the problem of air-flow left avertence, so by air-flow reflect after, gas can be made
Stream is exactly perpendicularly to the air outlet 41 of air-conditioner and penetrates, and meets the design requirement of air-conditioning products.
Alternatively, air-conditioner is cabinet air-conditioner or air-conditioner outdoor unit.
In sum, the present invention provide axial flow blower and stator blade, it is possible to achieve by the air-out of axial flow blower
Air-flow at Kou is led directly, and can contain the segregation phenomenon occurred at axial flow blower air outlet, reduces tail
Loss, it is achieved reduce the kinetic energy rejection of air-flow and reduce the purpose of pneumatic noise；The air-conditioning that the present invention provides
Device, has all of the above beneficial effect because designing above-mentioned axial flow blower and stator blade thereof.
In the present invention, term " first ", " second " are only used for the purpose described, and it is not intended that refer to
Show or imply relative importance；Term " multiple " then refers to two or more, unless otherwise clear and definite limit
Fixed.Term " is installed ", " being connected ", " connection ", the term such as " fixing " all should be interpreted broadly, such as,
" connecting " can be fixing connection, it is also possible to is to removably connect, or is integrally connected；" being connected " can
Being to be joined directly together, it is also possible to be indirectly connected to by intermediary.For those of ordinary skill in the art
Speech, can understand above-mentioned term concrete meaning in the present invention as the case may be.
In description of the invention, it is to be understood that the orientation of the instruction such as term "front", "rear" or position
Relation is based on orientation shown in the drawings or position relationship, is for only for ease of the description present invention and simplification is retouched
State rather than indicate or imply that the device of indication or unit must have specific direction, with specific orientation
Structure and operation, it is thus impossible to be interpreted as limitation of the present invention.
In the description of this specification, term " embodiment ", " some embodiments ", " specific embodiment "
Deng description means to combine this embodiment or example describes specific features, structure, material or feature be contained in
In at least one embodiment of the present invention or example.In this manual, the schematic representation to above-mentioned term
It is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or spy
Point can combine in any one or more embodiments or example in an appropriate manner.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for ability
For the technical staff in territory, the present invention can have various modifications and variations.All in the spirit and principles in the present invention
Within, any modification, equivalent substitution and improvement etc. made, should be included in protection scope of the present invention it
In.
Claims (18)
1. the stator blade of an axial flow blower, it is characterised in that including:
Blade body, has the pressure face in inner concavity and the suction surface in outer gibbosity, before described blade body has
Edge and trailing edge；
Lobe, is arranged at the trailing edge of described blade body, and described lobe is to the pressure of described blade body
Side, face is protruded.
The stator blade of axial flow blower the most according to claim 1, it is characterised in that
In described lobe, one end of relatively close described blade body is to its other end, described lobe convex
Go out height be incremented by seriality or be stepped incremental.
The stator blade of axial flow blower the most according to claim 2, it is characterised in that
In described lobe, one end of relatively close described blade body is to its other end, and described lobe is upper
In the surface of described pressure face side be highly be gradually increased seamlessly transit cambered surface or for be highly gradually increased
Seamlessly transit inclined-plane.
The stator blade of axial flow blower the most according to claim 3, it is characterised in that
In described lobe, one end of relatively close described blade body is to its other end, described in seamlessly transit arc
The molded line in face is concave curve.
The stator blade of axial flow blower the most according to claim 1, it is characterised in that in described lobe
The surface being positioned at described pressure face side includes:
Water conservancy diversion cambered surface district, the one end in described water conservancy diversion cambered surface district connects with the described pressure face transition of described blade body
Connect；
Rectification face district, the other end transition with described water conservancy diversion cambered surface district is connected, wherein, described water conservancy diversion cambered surface district
On extreme higher position be not higher than the position in described rectification face district.
The stator blade of axial flow blower the most according to claim 5, it is characterised in that
In described lobe, one end of relatively close described blade body is to its other end, described rectification face district
Molded line is straight line.
The stator blade of axial flow blower the most according to claim 6, it is characterised in that
In described lobe, one end of relatively close described blade body is to its other end, described rectification face district
Molded line is parallel with the axis of described stator blade.
8. according to the stator blade of the axial flow blower according to any one of claim 5 to 7, it is characterised in that
In described lobe, one end of relatively close described blade body is to its other end, described water conservancy diversion cambered surface district
Molded line be crest curve.
9. according to the stator blade of the axial flow blower according to any one of claim 5 to 7, it is characterised in that
In described lobe, one end of relatively close described blade body is to its other end, the length of described lobe
Degree L meets: L≤a+r, wherein, a is that described rectification face district is along the one of relatively close described blade body
End width on the other end direction in described rectification face district, r is the radius of curvature in described water conservancy diversion cambered surface district.
The stator blade of axial flow blower the most according to claim 9, it is characterised in that
In described lobe, one end of relatively close described blade body is to its other end, the length of described lobe
Degree L meets: L=a+r.
The stator blade of 11. axial flow blowers according to any one of claim 1 to 7, it is characterised in that
In described lobe, one end of relatively close described blade body is to its other end, the length of described lobe
Degree L meets: B/9≤L≤B/8, wherein, B is between leading edge and the trailing edge of blade body of described blade body
Air line distance.
The stator blade of 12. axial flow blowers according to any one of claim 1 to 7, it is characterised in that
The maximum d of the thickness of described lobe meets: B/31≤d≤2B/31, wherein, B is described leaf
Air line distance between leading edge and the trailing edge of blade body of lamellar body.
The stator blade of 13. axial flow blowers according to any one of claim 1 to 7, it is characterised in that
The maximum d of the thickness of described lobe meets: 3mm≤d≤6mm.
The stator blade of 14. axial flow blowers according to any one of claim 1 to 7, it is characterised in that
The transition curved with described lobe of described blade body is connected.
The stator blade of 15. axial flow blowers according to any one of claim 1 to 7, it is characterised in that
The one end being relatively distant from described blade body in described lobe is concordant with the air outlet of described axial flow blower.
The stator blade of 16. axial flow blowers according to any one of claim 1 to 7, it is characterised in that
Being provided with attached wall supplementary structure on the surface of described lobe, wherein, described attached wall supplementary structure includes
Golf spherical surface pit, coarse lines and/or the following current groove extended along fluid flow direction.
17. 1 kinds of axial flow blowers, it is characterised in that including:
Wind collection；
Movable vane, is arranged in the upstream space of described wind collection；
Stator blade as according to any one of claim 1 to 16, is arranged on the downstream space of described wind collection
In.
18. 1 kinds of air-conditioners, it is characterised in that including:
Air channel and the air outlet connected with described air channel；
Axial flow blower as claimed in claim 17, is positioned in described air channel, and the collection of described axial flow blower
The axis of air duct is perpendicular to the axis of described 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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| 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 |
| CN107654420A (en) * | 2017-10-30 | 2018-02-02 | 广东美的制冷设备有限公司 | Air conditioner, axial flow blower and its air channel |
| CN108661946A (en) * | 2018-07-09 | 2018-10-16 | 广东美的环境电器制造有限公司 | Fan |
| CN110332149A (en) * | 2019-07-25 | 2019-10-15 | 洛阳北玻台信风机技术有限责任公司 | A kind of axial flow blower convenient for simulating flying trapeze by thrust gas |
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| US11884128B2 (en) | 2017-12-18 | 2024-01-30 | Carrier Corporation | Fan stator construction to minimize axial depth |
| CN108661946A (en) * | 2018-07-09 | 2018-10-16 | 广东美的环境电器制造有限公司 | Fan |
| 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 |
| CN110332149A (en) * | 2019-07-25 | 2019-10-15 | 洛阳北玻台信风机技术有限责任公司 | A kind of axial flow blower convenient for simulating flying trapeze by thrust gas |
| 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 |
| WO2021147595A1 (en) * | 2020-01-20 | 2021-07-29 | 珠海格力电器股份有限公司 | Whirl eliminating structure, mixed-flow fan assembly and air conditioner |
| CN111441996A (en) * | 2020-04-07 | 2020-07-24 | 北京航空航天大学 | Noise suppression fan |
| CN112432358A (en) * | 2020-10-29 | 2021-03-02 | 青岛海尔空调器有限总公司 | Amortization subassembly and air conditioning system |
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