CN205779926U - Air-conditioner, axial flow blower and stator blade thereof - Google Patents

Abstract

This utility model provides a kind of air-conditioner, axial flow blower and stator blade thereof, and wherein, the stator blade of axial flow blower includes blade body and lobe, and specifically, blade body has the pressure face in inner concavity and the suction surface in outer gibbosity, and blade body has leading edge and trailing edge；Lobe is arranged at the trailing edge of blade body, and lobe is protruded to the pressure face side of blade body；The stator blade of the axial flow blower that this programme provides, the air-flow at by the air outlet of axial flow blower can be realized and lead directly, and the segregation phenomenon occurred at axial flow blower air outlet can be contained, reduce Trailing Edge Loss, it is achieved reduce the kinetic energy rejection of air-flow and reduce the purpose of pneumatic noise.

Description

Air-conditioner, axial flow blower and stator blade thereof

Technical field

This utility model relates to air-conditioning equipment field, in particular to stator blade, a kind of axial flow wind of a kind of axial flow blower Machine 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 along with right Deepening continuously of the aspect such as heat pump performance, structure designs and gradually steps up product quality requirement, and axial flow blower is efficient with it The advantage such as rate, Wind Volume enters the sight line of research staff.But find through practice, when axial flow blower is applied in cabinet air-conditioner Time, 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 is from B' lateral A' effluent Dynamic, 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, no Only can reduce air-flow velocity and noise can be produced, additionally, as it is shown in figure 1, at the P2' of position, i.e. after respective shaft flow fan stator blade The downstream position of edge, air-flow there will be left avertence situation significantly, and this can not meet in existing cabinet air-conditioner obviously for going out Implication stream must be perpendicular to air outlet and penetrates this design requirement, causes at the air outlet remote position of distance cabinet air-conditioner Wind sense is inconspicuous or calm sense, and when axial flow blower is used in non-cabinet air-conditioner such as air-conditioner outdoor unit, depurator, left Bias current cognition and air channel collision cause noise problem, and a large amount of left avertence fluid can cause turbulent flow phenomenon with axial flow of fluid collision, this Easily strengthen noise effect, and can correspondingly reduce the flow of axial flow of fluid, cause the air output of cabinet air-conditioner to decline.

Utility model content

In order to solve at least one above-mentioned technical problem, a purpose of the present utility model is to provide a kind of axial flow blower Stator blade.

Another purpose of the present utility model is to provide a kind of axial flow blower.

Further object of the present utility model is to provide a kind of air-conditioner.

For achieving the above object, the embodiment of this utility model first aspect provides the stator blade of a kind of axial flow blower, bag Including: blade body, have the pressure face in inner concavity and the suction surface in outer gibbosity, described blade body has leading edge and trailing edge；Convex The portion of rising, one-body molded on described blade body, described boss is at the trailing edge of described blade body, and described lobe is to institute The pressure face side stating blade body is protruded.

It is understood that axial flow blower comprises movable vane and stator blade, movable vane is driven by motor and rotates to drive 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 relatively close movable vane on blade body Side, the trailing edge of the blade body of stator blade is positioned on blade body the side being relatively distant from movable vane, fluid along the surface of blade body from leaf The leading edge of lamellar body flows to the trailing edge of blade body, and blade body is for cutting the air-flow blown at movable vane, accelerate and expand Pressure.

The stator blade of the axial flow blower that this utility model provides, the side that the blade body of stator blade has pressure face is pressure face Side, the side that blade body has suction surface is suction surface side, wherein, arranges lobe and protrudes to pressure face side, with at axial flow Form convergence structure before the air outlet of blower fan, when air-flow along the axially-movable of stator blade and meets with lobe, utilize air-flow edge The attached wall effect of lobe can make air-flow along the protrusion Surface runoff of lobe so that the flow direction of air-flow changes, this On the one hand sample can greatly suppress the tangential flow velocity in Primordial Qi stream, make the flow tendency of air-flow be remedied to the axial of stator blade On, thus avoid the problem of air-flow left avertence, so can realize gathering of air-flow, reduce wind loss, relatively increase axial flow wind Air output in the axial direction of machine, and the air-flow at by the air outlet of axial flow blower can be realized lead directly, so it is used for when stator blade Air-flow can be realized during air-conditioner and be exactly perpendicularly to the air outlet injection of air-conditioner, meet the design requirement of air-conditioning products；And by Change in air flow direction so that occur the segregation phenomenon at the trailing edge of stator blade suction surface effectively to be held back in prior art System, decreases Trailing Edge Loss, it is achieved reduces the kinetic energy rejection of air-flow and reduces the purpose of pneumatic noise.

It addition, the stator blade of the axial flow blower in above-described embodiment of this utility model offer can also have following additional skill Art feature:

In an embodiment of the present utility model, in described lobe, one end of relatively close described blade body is to it The other end, the protrusion height of described lobe is that seriality is incremented by or is stepped incremental.

In this programme, arrange the protrusion height of lobe along it one end of relatively close blade body to its other end in Seriality is incremented by or is stepped incremental, so can be to face the slope on the surface of blade body side in relatively reduced lobe Degree, so while meeting the design requirement of lobe height, can avoid the height of projection size of lobe to occur that sudden change is made The local resistance loss become, so on the one hand can ensure that air-flow protrudes the adhesive ability on surface in lobe, and can be at air-flow The tangential velocity of air-flow is made to be consumed during this lobe Surface runoff, it is achieved the flow tendency of air-flow is remedied to stator blade Axial direction on, on the other hand, can greatly reduce air-flow and act perpendicularly to the component on lobe surface, reduce air-flow flow through quiet Kinetic energy rejection during leaf, 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, one end of relatively close described blade body is to it The other end, described lobe is positioned at the surface of described pressure face side be highly be gradually increased seamlessly transit cambered surface or for height Be gradually increased seamlessly transits inclined-plane.

In this programme, one end of relatively close blade body is set in lobe to its other end, lobe towards The surface of blade body side be highly be gradually increased seamlessly transit cambered surface or seamlessly transit tiltedly for be highly gradually increased Face, so can make this seamlessly transit cambered surface or seamlessly transit inclined-plane in addition to as the attached wall of air-flow, it is also possible to play following current With the effect of rectification, the air-flow adhesive ability on lobe surface, the efficient hardening break-in to air-flow so can not only be promoted With water conservancy diversion effect, to realize being remedied in the axial direction of stator blade the flow tendency of air-flow, and it is vertical correspondingly to reduce air-flow Act on the component on lobe surface, reduce air-flow kinetic energy rejection on stator blade to greatest extent, reduce the energy of axial flow blower Consumption and noise.

In any of the above-described technical scheme, it is preferable that in described lobe, one end of relatively close described blade body is to it The other end, described in seamlessly transit the molded line of cambered surface be concave curve.

In this programme, one end of relatively close blade body in lobe is set and, to its other end, seamlessly transits cambered surface Molded line be concave curve, so arrange and can improve the air-flow adhesive ability on lobe surface to greatest extent, with strengthening Break-in and water conservancy diversion effect to air-flow, to realize being remedied in the axial direction of stator blade the flow tendency of air-flow.

In an embodiment of the present utility model, the surface that described lobe is positioned at described pressure face side includes: lead Stream 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；Rectification face district, with described The other end transition in water conservancy diversion cambered surface district connects, and wherein, the extreme higher position in described water conservancy diversion cambered surface district is not higher than described rectification face district Position.

In such scheme, the surface arranging lobe includes rectification face district and water conservancy diversion cambered surface district, wherein, flows through lobe table The air-flow in face can flow successively through water conservancy diversion cambered surface district and rectification face district, and water conservancy diversion cambered surface district is arc shape, is mainly used in making air-flow edge The velocity attitude during flowing of guide face district is along the tangential variations in guide face district, and makes along water conservancy diversion cambered surface district flow process at air-flow The tangential velocity of air-flow is consumed；Rectification face district mainly extends along the flow direction of air-flow is smooth, with when air-flow is along rectification face district During flowing, utilize rectification face district that air-flow carries out rectification and following current, so can not only consume cutting of air-flow further 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, reduce The air-flow kinetic energy rejection when flowing through stator blade, reduces 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 is to its another 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 other end direction On molded line be straight line, this straight line can be parallel with the axis of stator blade or intersect, it is to be understood that at the axle of this straight line Yu stator blade When line intersects, both angles are unsuitable excessive, are difficult to play the rectification effect in rectification face district to avoid rectification face district to cross steep Problem；It is straight line by arranging the molded line in rectification face district, air-flow can be made to move along a straight line along rectification face district, to reach whole to air-flow Stream and the purpose of following current, so can reduce the less turbulence of air-flow, reduces the air-flow kinetic energy rejection when flowing through stator blade, reduces The energy consumption of axial flow blower and noise.

In technique scheme, it is preferable that in described lobe, one end of relatively close described blade body is to its another 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 to a certain extent The tangential flow velocity of suppression air-flow, on the other hand can greatly be remedied to the flow tendency of air-flow on axially, so to reduce gas The stream kinetic energy rejection when flowing through stator blade, reduces 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 to its other 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 cambered surface district Molded line is crest curve, and air-flow is guided, relative to plane or concave structure by the arcuate surface utilizing crest curve to be constructed Speech, arcuate surface is more preferable with the transition effect in rectification face district, can beneficially reduce the air-flow flow resistance on lobe surface, and at identical water conservancy diversion Under conditions of length, when air-flow flows along the water conservancy diversion cambered surface region in outer gibbosity, attached wall effect is more preferable, is so more conducive to air-flow The consumption of tangential velocity, to optimize the rectification effect to air current flow trend further, it is achieved gathering of air-flow, reduces air quantity and damages Become estranged noise, relatively increase the air output on axially, and it is straight so can to improve leading of air-flow at the air outlet to axial flow blower Effect, makes air-flow can be exactly perpendicularly to the air outlet injection of air-conditioner after refraction, meets the design requirement of air-conditioning products.

In any of the above-described technical scheme, in described lobe, one end of relatively close described blade body is to its other end, Length L of described lobe meets: L≤a+r, wherein, a is that described rectification face district is in the one end along relatively close described blade body 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.

It is understood that length L in lobe is less than or equal to the width a in rectification face district and the song in water conservancy diversion cambered surface district During rate radius r sum, it is possible to ensure not have in water conservancy diversion cambered surface district extra projective structure, and be beneficial to ensure rectification face district with The flatness of water conservancy diversion cambered surface district joining place, ensures the rectification effect to air-flow well.

In any of the above-described technical scheme, in described lobe, one end of relatively close described blade body is to its other 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 to its other end, Length L of described lobe 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.

In this programme, arrange straight line between the leading edge that length L is blade body and the trailing edge of blade body of lobe away from From the 1/9～1/8 of B, so can guarantee the suitable length of lobe according to the concrete size of stator blade, make air-flow flow through projection There is during portion suitable attached wall path, lobe curtailment so can be avoided not have and air-flow break-in is asked Topic, simultaneously, it is possible to avoid the excessive problem causing gas-flow resistance loss excessive of lobe length, herein, by by lobe The 1/9～1/8 of air line distance B that length L is limited between the leading edge of blade body and the trailing edge of blade body, can fully ensure that gas When stream flows through lobe, 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 can be according to stator blade Concrete size guarantee that the height of lobe is suitable, make air-flow have suitable climbing height when along the Surface runoff of lobe To guarantee that air flow direction changes, so can avoid causing whole Ye Daonei axial dimension owing to the height of projection of lobe is too high The power loss that variable gradient is excessive and causes air-flow vortex to cause, the height of projection that simultaneously can avoid lobe is too low and rises Less than 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, can During to fully ensure that airflow passes lobe, the tangential velocity of air-flow is fully dissipated, and the shadow that the axial flow velocity of air-flow is subject to Ring less, 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, owing to lobe is the thickest Position is not more than 6mm adjacent to the air outlet of axial flow blower, the maximum d of the thickness arranging lobe, so can be further Avoid occurring segregation phenomenon at the trailing edge of suction surface, reduce Trailing Edge Loss, on the other hand, the maximum of the thickness of lobe is set D is not less than 3mm for value, it is to avoid lobe height is not enough and cause air flow guiding effect is reduced problem or lobe is the thinnest leads Cause the problem that intensity is not enough.

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 at axle Structural continuity upwards, it is to avoid whole leaf road change in size gradient vertically is excessive causes asking of gas-flow resistance loss increase Topic, 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 axial flow blower Air outlet concordant.

In this programme, it is concordant with the air outlet of axial flow blower that one end that lobe is relatively distant from blade body is set, this Sample can make air-flow directly depart from stator blade after flowing through lobe, thus reduces the turbulent flow impact in the back pressure side of lobe, real Now 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 the following current groove extended along fluid flow direction.

In this programme, lobe arranges such as golf spherical surface pit, coarse lines and/or along fluid flow direction The attached wall supplementary structures such as the following current groove extended, so on the one hand can improve the air-flow adhesion effect on lobe surface, make The flow direction of air-flow is significantly changed, thus realizes the tangential flow velocity in suppression Primordial Qi stream, makes the flow tendency of air-flow be rectified Just in the axial direction of stator blade, it is to avoid the problem of air-flow left avertence；On the other hand, the wake flow scope on rear side of lobe can be reduced, this Sample can reduce the back pressure of lobe, reduce flow resistance, reduces the kinetic energy rejection of air-flow and reduces the purpose of pneumatic noise.

The embodiment of this utility model second aspect provides a kind of axial flow blower, including: wind collection；Movable vane, is arranged on In the upstream space of described wind collection；Stator blade described in any of the above-described technical scheme, the downstream being arranged on described wind collection is empty In.

The axial flow blower that this utility model provides, when the air-flow flowed out is along stator blade Surface runoff, utilizes air-flow at movable vane Attached wall effect to lobe, makes air-flow along the Surface runoff of lobe so that the flow direction of air-flow changes, so can make The tangential flow velocity of air-flow is suppressed and makes the tangential flow tendency of air-flow be remedied in the axial direction of stator blade, thus avoids air-flow The problem of left avertence, so can realize gathering of air-flow, reduce product wind loss, relatively increase product axially on air-out Amount, and the air-flow at by the air outlet of axial flow blower can be realized lead directly, when product applies to air-conditioning products, it is possible to achieve make Air-flow is exactly perpendicularly to the air outlet injection of air-conditioner, meets the design requirement of air-conditioning products；And due to lobe setting and The flow direction making air-flow changes, and so can contain the segregation phenomenon occurred at axial flow blower air outlet, reduces tail and damages Lose, it is achieved reduce the kinetic energy rejection of air-flow and reduce the purpose of pneumatic noise.

The embodiment of this utility model third aspect provides a kind of air-conditioner, including: air channel and connects with described air channel Air outlet；Axial flow blower described in technique scheme, is positioned in described air channel, and the wind collection of described axial flow blower Axis is perpendicular to the axis of described air outlet.

The air-conditioner that this utility model provides, utilizes the air-flow attached wall effect to lobe, makes the gas flowed out at movable vane The tangential flow velocity of stream can be suppressed on stator blade, the flow tendency of air-flow is remedied in the axial direction of stator blade, thus avoids air-flow The problem of left avertence, so by air-flow reflect after, can make air-flow be exactly perpendicularly to air-conditioner air outlet injection, meet air-conditioning The design requirement of product.

Alternatively, air-conditioner is cabinet air-conditioner or air-conditioner outdoor unit.

Additional aspect of the present utility model and advantage will become obvious in following description part, or new by this practicality The practice of type is recognized.

Accompanying drawing explanation

Above-mentioned and/or additional aspect of the present utility model and advantage are from combining general the accompanying drawings below description to embodiment Become obvious and 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 this utility model；

Fig. 3 be M-M shown in Fig. 2 to sectional structure schematic diagram；

Fig. 4 is lobe structural representation under the first visual angle described in first embodiment of this utility model；

Fig. 5 is lobe structural representation under the second visual angle described in first embodiment of this utility model；

Fig. 6 is lobe structural representation under the 3rd visual angle described in first embodiment of this utility model；

Fig. 7 is lobe structural representation under the first visual angle described in second embodiment of this utility model；

Fig. 8 is lobe structural representation under the second visual angle described in second embodiment of this utility model；

Fig. 9 is lobe structural representation under the 3rd visual angle described in second embodiment of this utility model；

Figure 10 is the sectional structure schematic diagram of air-conditioner described in one embodiment of this utility model；

Figure 11 is the numerical simulation cloud atlas of the local, air channel of air-conditioner described in one embodiment of this utility model.

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, the interval location between D' movable vane and stator blade, 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 districts, 123 first is protruding, and 124 second is protruding, 20 movable vanes, 30 wind collections, 40 air channel heads, 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, the rearward position of P2 lobe.

Detailed description of the invention

In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the accompanying drawings and tool This utility model is further described in detail by body embodiment.It should be noted that in the case of not conflicting, this Shen Feature in embodiment please and embodiment can be mutually combined.

Elaborate a lot of detail in the following description so that fully understanding this utility model, but, this practicality Novel can implement to use other to be different from other modes described here, therefore, protection domain of the present utility model is also Do not limited by following public specific embodiment.

Describe according to axial flow blower and stator blade thereof described in some embodiments of this utility model referring to Fig. 2 to Fig. 9.

The axial flow blower that embodiment of the present utility model provides, as shown in Figures 2 and 3, axial flow blower comprises movable vane 20 He 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 relative movable vane 20, The leading edge 111 of the blade body 11 of stator blade 10 is positioned at the side of relatively close movable vane 20 on blade body 11, the trailing edge 112 of blade body 11 Being positioned at the side being relatively distant from movable vane 20 on blade body 11, fluid flows to trailing edge 112 along the surface of blade body 11 from leading edge 111 Dynamic, blade body 11 is for cutting the air-flow blown at movable vane 20, accelerating and diffusion.

In the stator blade described in some embodiments of this utility model, as shown in Fig. 2 to Fig. 9, stator blade 10 includes blade body 11 With lobe 12.

Wherein, blade body 11 has the pressure face in inner concavity and the suction surface in outer gibbosity, and blade body 11 has leading edge And trailing edge；Lobe 12 is arranged at the trailing edge 112 of blade body 11, and lobe 12 is protruded to the pressure face side of blade body 11. Preferably, blade body 11 and lobe 12 are formed in one structure.

The stator blade 10 of the axial flow blower that this utility model provides, the side that the blade body 11 of stator blade 10 has pressure face is Pressure face side, the side that blade body 11 has suction surface is suction surface side, wherein, arranges lobe 12 convex to pressure face side Go out, with before the air outlet of axial flow blower formed convergence structure, air-flow along the axially-movable of stator blade 10 and with lobe 12 phase During chance, utilize air-flow along the attached wall effect of lobe 12 can make air-flow along the protrusion Surface runoff of lobe 12 so that gas The flow direction of stream changes, and so one side can greatly suppress the tangential flow velocity in Primordial Qi stream, make the 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 gathering of air-flow, reduce air quantity Loss, the air output relatively increased in the axial direction of axial flow blower, and the air-flow at by the air outlet of axial flow blower can be realized lead Directly, so can realize air-flow when stator blade 10 is used for air-conditioner and be exactly perpendicularly to the air outlet injection of air-conditioner, meet sky Adjust the design requirement of product；And due to the change of air flow direction so that prior art occurs the trailing edge at stator blade 10 suction surface The segregation phenomenon at place is effectively contained, decreases Trailing Edge Loss, it is achieved the kinetic energy rejection and the reduction air-flow that reduce air-flow are made an uproar The purpose of sound.

Specifically, the surface in this programme protrusions portion 12 is in the structure protruded towards pressure face side, and fluid flows through projection With the mantle friction of lobe 12 during 12 surface, portion so that the local velocity of fluid reduces, pressure increases, i.e. and then make fluid shape The attached wall effect on lobe 12 surface in pairs, wherein, fluid flow direction when climbing along lobe 12 surface constantly becomes Change, and for the fluid of tangential flowing, owing to when tangentially flowing along lobe 12, path length easily makes tangential flow velocity be consumed, and Tangential fluid is guided and the flow direction of fluid can be made to be corrected in the axial direction of stator blade 10 by lobe 12, it is achieved by the stream of fluid Dynamic direction is led directly.

More specifically, also have in prior art is real by the way of increasing stator blade chord length, amendment stator blade depression radian Now straight to conductance of working off one's feeling vent one's spleen purpose, compared with which, this programme becomes apparent from straight effect leading air-flow, and we Case need not elongate stator blade, so can save body volume, make product all have on structure design, appearance design and cost Have superiority；Affect by the way of the stator blade quantity increasing stator blade is with Shi Ye road narrowed width it addition, prior art also has The main flow direction of air-flow, realizing leading directly by the flow direction of air-flow, compared with which, air-flow is being led in straight effect more by this programme For substantially, and this programme is without increasing leaf road quantity, so can greatly reduce the flow resistance of air-flow, thus reduce the dynamic of air-flow Power loss, reduction pneumatic noise.

In first embodiment of the present utility model, as shown in Figures 4 to 6, relatively close blade in lobe 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 lobe to its rear end, the protrusion of lobe 12 Height is incremented by seriality or is stepped incremental.So can be to face blade body 11 side in relatively reduced lobe 12 The gradient on surface, so meeting while lobe 12 height design requires, the height of projection of lobe 12 can avoided There is the local resistance loss that sudden change causes in size, and so on the one hand can ensure that air-flow protrudes the attachment on surface in lobe 12 Ability, 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 air-flow Flow tendency is remedied in the axial direction of stator blade 10, on the other hand, can greatly reduce air-flow and act perpendicularly to lobe 12 surface Component, reduce the air-flow kinetic energy rejection when flowing through stator blade 10, reduce the energy consumption of axial flow blower and noise.

Preferably, in lobe 12, one end of relatively close blade body 11 is to its other end, i.e. such as institute in Fig. 4 and Fig. 6 Stating the front end along lobe to its rear end, it is seamlessly transitting of being highly gradually increased that lobe 12 is positioned at the surface of pressure face side Cambered surface, it is highly preferred that as shown in Figure 6, in lobe 12, one end of relatively close blade body 11 is to its other end, and this is smoothed The molded line crossing cambered surface is concave curve；Certainly, this programme is not limited to the present embodiment, in addition, such as, also can arrange convex The surface playing portion 12 is the inclined-plane that seamlessly transits highly being gradually increased, or, on the surface of lobe 12 for seamlessly transitting arc During face, 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 For crest curve.

In this programme, one end of relatively close blade body 11 is set in lobe 12 to its other end, lobe 12 The surface towards blade body 11 side be highly be gradually increased seamlessly transit cambered surface or flat for be highly gradually increased Sliding intermediate incline, so can make this seamlessly transit cambered surface or seamlessly transit inclined-plane in addition to 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 the air-flow adhesive ability on lobe 12 surface, efficient hardening pair The break-in of air-flow and water conservancy diversion effect, to realize being remedied in the axial direction of stator blade 10 flow tendency of air-flow, and can be correspondingly Reduce air-flow and act perpendicularly to the component on lobe 12 surface, reduce air-flow kinetic energy rejection on stator blade 10 to greatest extent, Reduce energy consumption and the noise of axial flow blower.

In first embodiment of the present utility model, it is preferable that as shown in Figs. 4-6, relatively close in lobe 12 One end of blade body 11 to its other end, i.e. as described in Fig. 4 and Fig. 6 along the front end of lobe to its rear end, lobe 12 Length L meets: B/9≤L≤B/8, wherein, B be straight line between the leading edge 111 of blade body 11 and the trailing edge 12 of blade body 11 away from From.Herein, by length L of lobe 12 is limited between the leading edge 111 of blade body 11 and the trailing edge 12 of blade body 11 The 1/9～1/8 of air line distance B, when can fully ensure that airflow passes lobe 12, the tangential velocity of air-flow is fully dissipated, And the axial flow velocity influence of air-flow is less, minimum with the drag losses making air-flow while realizing air-flow is guided Change.

In first embodiment of the present utility model, it is preferable that as shown in Figures 4 to 6, the thickness of lobe 12 is Big value d meets: B/31≤d≤2B/31.Herein, by the maximum d of the thickness of lobe 12 is limited to B/31≤d≤2B/ 31, when can fully ensure that airflow passes lobe 12, the tangential velocity of air-flow is fully dissipated, and the axial flow velocity of air-flow is subject to The impact arrived is less, to make the drag losses of air-flow minimize while realizing guiding air-flow.

In a specific embodiment of the present utility model, as it is shown on figure 3, be relatively distant from blade body 11 in lobe 12 One end is concordant with the air outlet of axial flow blower, i.e. along rear end and the air outlet of axial flow blower of lobe as described in Fig. 4 and Fig. 6 Concordant, wherein, the maximum d of the thickness arranging lobe 12 meets: 3mm≤d≤6mm, so can avoid at axle further Segregation phenomenon occurs at the air outlet of flow fan, reduces Trailing Edge Loss, and lobe 12 can be avoided highly not enough and cause right Air flow guiding effect reduces problem or the thinnest problem causing intensity not enough of lobe 12.

In first embodiment of the present utility model, it is preferable that blade body 11 transition curved with lobe 12 is connected, So can improve whole leaf road structural continuity in the axial direction, it is to avoid change in size gradient is excessive vertically in whole leaf road draws Play the problem that gas-flow resistance loss increases, it is achieved reduce the kinetic energy rejection of air-flow and reduce the purpose of pneumatic noise.

Numerical simulation is carried out to being provided with the air channel of the air-conditioner of stator blade 10 described in first embodiment of this utility model, This sentences the simulation cloud atlas that numerical simulation obtains as shown in figure 11 and stator blade 10 in first embodiment of this utility model is used field The effect closed explains.

Figure 11 illustrates that the flow field situation of local, air channel, wherein, the dotted line signal stator blade 10 between A and C and movable vane The boundary position of 20, specifically, A illustrates side, stator blade 10 place, C to illustrate side, movable vane 20 place, air-flow from C effluent to A side, separately Outward, the downstream position of P1 signal axial flow blower in Figure 11, the rearward position of P2 signal lobe 12, compared with the flow field in Fig. 1, P1 position in fig. 11, the left avertence phenomenon during air-flow is moved by C lateral A effluent substantially weakens, it is believed that from stator blade The tangential velocity of the air-flow that the air stream outlet of 10 flows out is consumed the most completely, makes the wind direction of stator blade 10 downstream position in flowing Approximating linearly on direction, understand in conjunction with Figure 10, owing to the tangential flow velocity of air-flow is consumed, air-flow the most linearly enters wind During road head 40, tangential fluid occurs in can avoiding air channel head 40, thus avoids tangential fluid at the air outlet 41 in air channel Place is tangentially thrown away by centrifugal forces affect and causes air-flow cannot be perpendicular to the problem that the air outlet 41 in air channel penetrates.

Additionally, in the P2 position of Figure 11, it is seen that the scope in tail district is obviously reduced, and the turbulent phenomenon in tail district obtains Substantially containment, thus can unambiguously infer that the Trailing Edge Loss at this programme Axial-Flow fan outlet is significantly dropped Low.

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 front and back Difference is at more than 4m/s, and as can be seen from Fig. 11, it is right the flow velocity at movable vane 20 air flow inlet and the flow velocity of P1 position to be carried out Ratio, speed difference front and back is less than 3m/s, and the power loss of air-flow substantially reduces, it is possible to product efficiency is effectively ensured.

In second embodiment of the present utility model, 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 with lead The other end transition in stream cambered surface district 122 connects, and wherein, the extreme higher position in water conservancy diversion cambered surface district 122 is not higher than rectification face district 121 Position.

In such scheme, the surface arranging lobe 12 includes rectification face district 121 and water conservancy diversion cambered surface district 122, wherein, flows through The air-flow on lobe 12 surface can flow successively through water conservancy diversion cambered surface district 122 and rectification face district 121, and water conservancy diversion cambered surface district 122 is in arc surfaced Shape, is mainly used in the tangential variations along water conservancy diversion cambered surface district 122 of velocity attitude when making air-flow flow along water conservancy diversion cambered surface district 122, and The tangential velocity of air-flow is made to be consumed at air-flow along water conservancy diversion cambered surface district 122 flow process；Rectification face district 121 is main along air-flow Flow direction is smooth to be extended, and during flowing along rectification face district 121 when air-flow, utilizes rectification face district 121 to carry out air-flow Rectification and following current, so can not only consume the tangential velocity of air-flow further, the flow tendency of air-flow be remedied to further In the axial direction of stator blade 10, and the less turbulence of air-flow can be reduced, reduce the air-flow kinetic energy rejection when flowing through stator blade 10, reduce The energy consumption of axial flow blower and noise.

In second embodiment of the present utility model, as shown in Figure 7 to 9, relatively close blade in lobe 12 One end of 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 type in rectification face district 121 Line is straight line.It is straight line by arranging the molded line in rectification face district 121, air-flow can be made to move along a straight line along rectification face district 121, to reach To air-flow rectification and the purpose of following current, so can reduce the less turbulence of air-flow, reduce air-flow when flowing through stator blade 10 Kinetic energy rejection, reduces energy consumption and the noise of axial flow blower.

Wherein, further preferably in lobe 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 lobe to its rear end described in Fig. 9, the molded line in rectification face district 121 is parallel with the axis of stator blade 10, and this is on the one hand The tangential flow velocity of air-flow can be suppressed to a certain extent, 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 10, reduce energy consumption and the noise of axial flow blower.More specifically and Speech, lobe 12 includes the first projection 123 of rectangular in cross-section, and a surface of this first projection 123 is rectification face district 121, And a limit in the cross section of this first projection 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 rectification face district One end of one end the most relatively close slightly prominent blade body 11 of blade body 11 it is relatively distant from, it is to be understood that should on 121 In the case of angle between the molded line in rectification face district 121 and the axis of stator blade 10 unsuitable excessive, with avoid rectification face district 121 cross steep and Being difficult to play the problem of the rectification effect in rectification face district 121, so design can make air-flow along rectification face district 121 jet attached flow process The middle flow direction is changed further, strengthens with this and air-flow is led straight effect, and reduces dividing at axial flow blower air outlet further From phenomenon, reduce Trailing Edge Loss.

In second embodiment of the present utility model, as shown in Figure 7 to 9, relatively close blade in lobe 12 One end of 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, water conservancy diversion cambered surface district 122 Molded line is crest curve.More specifically, lobe 12 includes the second projection 124, and second protruding 124 with the first projection 123 is Integral structure, wherein, the surface that the second projection 124 faces blade body 11 side is water conservancy diversion cambered surface district 122, and this is second years old On the cross section profile of protruding 124, the arc of position, corresponding water conservancy diversion cambered surface district 122 is crest curve, and is water conservancy diversion cambered surface district The molded line of 122.

In such scheme, one end of relatively close blade body 11 is set in lobe 12 to its other end, water conservancy diversion cambered surface The molded line in district 122 is crest curve, and air-flow is guided, relative to plane or concave surface by the arcuate surface utilizing crest curve to be constructed For structure, arcuate surface is more preferable with the transition effect in rectification face district 121, can beneficially reduce the air-flow flow resistance on lobe 12 surface, And under conditions of identical water conservancy diversion length, when air-flow flows along the water conservancy diversion cambered surface district 122 in outer gibbosity, attached wall effect is more preferable, so It is more conducive to the consumption to air-flow tangential velocity, to optimize the rectification effect to air current flow trend further, it is achieved gathering of air-flow Hold together, reduce wind loss 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, meets air-conditioning products Design requirement.

In second embodiment of the present utility model, as shown in Figure 7 to 9, relatively close blade in lobe 12 One end of 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, length L of lobe 12 Meeting: L≤a+r, wherein, a is rectification face district 121 in the one end along relatively close blade body 11 to another of rectification face district 121 Width on extreme direction, r is the radius of curvature in water conservancy diversion cambered surface district 122.

In a preferred embodiment of the present utility model, in lobe 12, one end of relatively close blade body 11 is to it The other end, i.e. as described in Fig. 7 and Fig. 9 along the front end of lobe to its rear end, length L of lobe 12 meets: L=a+r.

It is understood that in length L of lobe 12 less than or equal to width a and the water conservancy diversion cambered surface in rectification face district 121 During the radius of curvature r sum in district 122, it is possible to ensure not have in water conservancy diversion cambered surface district 122 extra projective structure, and be beneficial to protect Card rectification face district 121 and the flatness of water conservancy diversion cambered surface district 122 joining place, ensure the rectification effect to air-flow well.

In second embodiment of the present utility model, it is preferable that 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 its rear end, lobe 12 Length L meet: B/9≤L≤B/8, wherein, B is the air line distance between the leading edge of blade body 11 and the trailing edge of blade body 11. Herein, by air line distance B length L of lobe 12 being limited between the leading edge of blade body 11 and the trailing edge of blade body 11 1/9～1/8, when can fully ensure that airflow passes lobe 12, the tangential velocity of air-flow is fully dissipated, and the axle of air-flow Less to flow velocity influence, to make the drag losses of air-flow minimize while realizing air-flow is guided.

In a specific embodiment of such scheme, the preferably lobe 12 thickness in whole rectification face district 121 is equal Even, additionally, the lobe 12 thickness in position, rectification face district 121 is maximum and for d value, wherein, can further preferred lobe 12 thickness d in position, rectification face district 121 are equal with radius of curvature r in water conservancy diversion cambered surface district 122, i.e. d=r, now, and rectification face In the one end along relatively close blade body 11, the width a on the other end direction in rectification face district 121 meets: a=B/9 in district 121 ～B/8-d.

In second embodiment of the present utility model, it is preferable that the maximum d of the thickness of lobe 12 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.Herein, by by convex The maximum d of the thickness playing portion 12 is limited to B/31≤d≤2B/31, when can fully ensure that airflow passes lobe 12, and air-flow Tangential velocity fully dissipated, and the axial flow velocity influence of air-flow is less, with while realizing guiding air-flow The drag losses making air-flow minimizes.

In second embodiment of the present utility model, as shown in Figure 7 to 9, arrange in rectification face district 121 relatively with lead The other end that stream cambered surface district 122 connects is concordant with the air outlet of axial flow blower, is i.e. relatively distant from blade body 11 in lobe 12 One end (rear end) is concordant with the air outlet of axial flow blower, wherein, arranges in lobe 12 thickness at rectification face district 121 and takes maximum Value d, and preferably the lobe 11 thickness d in this position meets: 3mm≤d≤6mm.So can avoid at axial flow further Segregation phenomenon occurs at the air outlet of blower fan, reduces Trailing Edge Loss, and lobe 12 can be avoided highly not enough and cause to gas Conductance stream effect reduces problem or the problem of the thinnest stator blade 11 intensity deficiency caused of stator blade 11.

In second embodiment of the present utility model, it is preferable that as it is shown on figure 3, blade body 11 and lobe 12 are in arc Shape transition connects, and so can improve whole leaf road structural continuity in the axial direction, it is to avoid whole leaf road size vertically becomes Change the excessive problem causing gas-flow resistance loss to increase of gradient, it is achieved reduce the kinetic energy rejection of air-flow 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 (not shown), its In, attached wall supplementary structure includes golf spherical surface pit, coarse lines and/or the following current groove extended along fluid flow direction.

In this programme, lobe 12 arranges such as golf spherical surface pit, coarse lines and/or along fluid flowing side To attached wall supplementary structures such as the following current grooves extended, the air-flow attachment effect on lobe 12 surface so on the one hand can be improved Really, make the flow direction of air-flow significantly be changed, thus realize suppressing the tangential flow velocity in Primordial Qi stream, make the flow tendency of air-flow It is remedied in the axial direction of stator blade 10, it is to avoid the problem of air-flow left avertence；On the other hand, the wake flow on rear side of lobe 12 can be reduced Scope, so can reduce the back pressure of lobe 12, reduce flow resistance, reduce the kinetic energy rejection of air-flow and reduce pneumatic noise Purpose.

As shown in Figures 2 and 3, the axial flow blower that this utility model provides, also include wind collection 30；Specifically, movable vane 20 It is arranged in the upstream space of wind collection 30；Stator blade 10 is arranged in the downstream space of wind collection 30.

The axial flow blower that this utility model provides, when the air-flow flowed out is along stator blade 10 Surface runoff, utilizes at movable vane 20 The air-flow attached wall effect to lobe 12, makes air-flow along the Surface runoff of lobe 12 so that the flow direction of air-flow changes, The tangential flow velocity that so can make air-flow is suppressed and makes the tangential flow tendency of air-flow be remedied in the axial direction of stator blade 10, from And avoid the problem of air-flow left avertence, so can realize gathering of air-flow, reduce the wind loss of product, relatively increase product axle Air output upwards, and the air-flow at by the air outlet of axial flow blower can be realized lead directly, when product applies to air-conditioning products, The air outlet injection making air-flow be exactly perpendicularly to air-conditioner can be realized, meet the design requirement of air-conditioning products；And due to projection The setting in portion 12 and make the flow direction of air-flow change, so can contain that the separation occurred at axial flow blower air outlet is existing As, 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, the air-conditioner that this utility model provides, including: air channel and the air outlet connected with air channel 41；Axial flow blower in technique scheme, axial flow blower is positioned in air channel, and the axis of the wind collection 30 of axial flow blower is vertical Axis in air outlet 41.

More specifically, as shown in Figure 10, air channel includes wind collection 30 and air channel head 40, wind collection 30 and air channel head 40 pass through Flange joint, are provided with the air guide structure 50 for controlling air outlet 41 aperture at the air outlet 41 of air channel head 40, Wherein, air-flow flows out in laggard inlet air road head 40 along the axial of stator blade 10 from wind collection 30, and i.e. air-flow is along arrow shown in Figure 10 Head points to flowing, and when air guide structure 50 aperture maximum, the air-flow axially flowed along stator blade 10 is refracted in air channel head 40 After be perpendicular to the air outlet 41 of air channel head 40 and penetrate.

The air-conditioner that this utility model provides, utilizes the air-flow attached wall effect to lobe 12, makes to flow out at movable vane 20 The tangential flow velocity of air-flow can be suppressed on stator blade 10, the flow tendency of air-flow is remedied in the axial direction of stator blade 10, thus The problem avoiding air-flow left avertence, so by air-flow reflect after, the air outlet 41 that air-flow can be made to be exactly perpendicularly to air-conditioner is penetrated Go out, meet the design requirement of air-conditioning products.

Alternatively, air-conditioner is cabinet air-conditioner or air-conditioner outdoor unit.

In sum, this utility model provide axial flow blower and stator blade, it is possible to achieve by the air outlet of axial flow blower The air-flow at place is led directly, and can contain the segregation phenomenon occurred at axial flow blower air outlet, reduces Trailing Edge Loss, it is achieved reduce The kinetic energy rejection of air-flow and the purpose of reduction pneumatic noise；The air-conditioner that this utility model provides, because designing above-mentioned axial flow blower And stator blade thus there is all of the above beneficial effect.

In this utility model, term " first ", " second " are only used for the purpose described, and it is not intended that indicate or dark Show relative importance；Term " multiple " then refers to two or more, unless otherwise clear and definite restriction.Term " is installed ", " phase Even ", " connection ", the term such as " fix " all should be interpreted broadly, such as, " connection " can be to fix connection, it is also possible to is removable Unload connection, or be integrally connected；" being connected " can be to be joined directly together, it is also possible to be indirectly connected to by intermediary.For ability For the those of ordinary skill in territory, above-mentioned term concrete meaning in this utility model can be understood as the case may be.

In description of the present utility model, it is to be understood that orientation or the position relationship of the instruction such as term "front", "rear" are Based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description rather than instruction Hint indication device or unit must have specific direction, with specific azimuth configuration and operation, it is thus impossible to understand For to restriction of the present utility model.

In the description of this specification, the description of term " embodiment ", " some embodiments ", " specific embodiment " etc. Mean that the specific features, structure, material or the feature that combine this embodiment or example description are contained in of the present utility model at least one In individual embodiment or example.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment Or example.And, the specific features of description, structure, material or feature can be in any one or more embodiments or examples In combine in an appropriate manner.

The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.

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, and described blade body has leading edge and trailing edge；

Lobe, one-body molded on described blade body, described boss is at the trailing edge of described blade body, and described projection Portion protrudes to the pressure face side of described blade body.

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, and the protrusion height of described lobe is in even Continuous property is incremented by or is 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 positioned at described pressure on its other end, described lobe The surface of side, face 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 the molded line of cambered surface and be Concave curve.

The stator blade of axial flow blower the most according to claim 1, it is characterised in that be positioned at described pressure face in described lobe The surface of 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；

Rectification face district, the other end transition with described water conservancy diversion cambered surface district is connected, wherein, the extreme higher position in described water conservancy diversion cambered surface district The not higher than 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 straight to its other end, the molded line in described rectification face district 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, and the molded line in described rectification face district is with described The axis of stator blade is parallel.

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, and the molded line in described water conservancy diversion cambered surface district is convex Sigmoid curves.

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 meets to its other end, length L of described lobe: L ≤ a+r, wherein, a is the described rectification face district other end in the one end along relatively close described blade body to described rectification face district Width on direction, 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 meets to its other end, length L of described lobe: 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 meets to its other end, length L of described lobe: B/ 9≤L≤B/8, wherein, B is the air line distance between leading edge and the trailing edge of blade body of described blade body.

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 leading edge and the leaf of described blade body Air line distance between the trailing edge 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 in the downstream space of described wind collection.

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 axis of the wind collection of described axial flow blower hangs down Straight in the axis of described air outlet.