CN106593952A - Axial-flow fan blade, fan with same, and air conditioner outdoor unit - Google Patents
Axial-flow fan blade, fan with same, and air conditioner outdoor unit Download PDFInfo
- Publication number
- CN106593952A CN106593952A CN201710021308.8A CN201710021308A CN106593952A CN 106593952 A CN106593952 A CN 106593952A CN 201710021308 A CN201710021308 A CN 201710021308A CN 106593952 A CN106593952 A CN 106593952A
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- Prior art keywords
- blade
- axial
- lacuna
- blade body
- flow
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
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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
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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
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of air conditioner equipment, and particularly relates to an axial-flow fan blade. The axial-flow fan blade comprises a blade body, wherein a cavity gap structure is arranged at the blade tip of the blade body; and the cavity gap structure comprises two relatively parallel sidewalls located at the two sides of a cavity gap, and an opening between the two sidewalls faces the blade tip of the blade body. According to the axial-flow fan blade provided by the invention, the cavity gap structure is arranged at the blade tip of the blade, the two sidewalls at the two sides of the cavity gap are relatively parallel, an airflow of the positive pressure surface of the blade is leaked into the cavity gap through a gap of a flow guide ring instead of diffusing to the negative pressure surface of the blade during running of the fan blade, thus the purpose of noise reduction is achieved; meanwhile, the airflow swirls to be accumulated in the cavity gap and causes the rising of a static pressure in the cavity gap, thus the resistance of the flowing of the leaked airflow of the positive pressure surface to the negative pressure surface is increased, and then the leakage amount can be reduced, the air outlet amount of a fan is increased, and the low possibility of flutter and abnormal sound of the fan blade under the working condition of high-speed running can be ensured. The invention further provides a fan and an air conditioner outdoor unit.
Description
Technical field
The present invention relates to air conditioner technical field, more particularly to a kind of axial-flow leaf and the blower fan with which and air-conditioning
Off-premises station.
Background technology
The outer machine axial flow blower aerodynamic noise of traditional air conditioner is the noise source for being only second to compressor vibrating noise, therefore wind
Machine noise reduction is one of emphasis research topic in terms of blower fan optimization.And the aerodynamic noise of axial flow blower is mainly derived near blade,
Especially Ye Ding regions.As the region acting ability is most strong, wind speed is maximum, adds blade tip leakage vortex and occurs mainly in the area
Domain, air-flow vortex are serious, are the largest sources of aerodynamic noise.Between traditional method reduces between baffle liner and fan blade leaf top
Gap, but the method is higher to producing required precision, and control difficulty is big.
The content of the invention
Based on this, it is necessary to for aerodynamic noise it is big the problems such as, there is provided one kind can reduce that fan blade is pneumatic to make an uproar
The axial-flow leaf of sound, while additionally providing a kind of blower fan comprising the axial-flow leaf and air-conditioner outdoor unit.
Above-mentioned purpose is achieved through the following technical solutions：
A kind of axial-flow leaf, including：Blade body, is provided with lacuna structure at the leaf top of blade body；Lacuna structure bag
Include two opposing parallel side walls positioned at lacuna both sides, leaf top of the opening between two side walls towards blade body.
Wherein in one embodiment, lacuna structure includes auxiliary blade, and auxiliary blade is arranged on blade body near leaf
On suction surface at top；
Auxiliary blade and partial blade body parallel interval corresponding thereto are arranged, to form two positioned at lacuna both sides
Opposing parallel side wall；Orthographic projection of the edge of auxiliary blade in blade body is overlapped with the edge of blade body.
Wherein in one embodiment, auxiliary blade passes through connecting plate and blade body away from the side on blade body leaf top
Connection, auxiliary blade, connecting plate and blade body surround lacuna.
Wherein in one embodiment, lacuna can be through to the trailing edge of blade body from the leading edge of blade body.
Wherein in one embodiment, along the direction of the leading edge to trailing edge of blade body, the sectional area of lacuna gradually subtracts
It is little.
Wherein in one embodiment, auxiliary blade is not more than 2cm parallel to the width at the edge of the trailing edge of blade body.
Wherein in one embodiment, auxiliary blade is two or three, near the auxiliary blade and leaf of blade body
Piece body is parallel；Adjacent auxiliary blade is parallel to each other.
Wherein in one embodiment, surround and on the side wall of lacuna, be provided with concave point or salient point.
A kind of blower fan, including rotating shaft and baffle liner, also including the axial-flow leaf described in as above any one, blade body circumference
It is arranged in rotating shaft；Baffle liner is annular, and water conservancy diversion ring is located at outside axial-flow leaf, and baffle liner is centrally located at the centrage of rotating shaft
On.
A kind of air-conditioner outdoor unit, including the axial-flow leaf described in as above any one.
Above-mentioned axial-flow leaf, by arranging lacuna structure at blade and blade top, two side walls of lacuna both sides are relatively flat
Capable, so, when fan blade runs, the air-flow Jing water conservancy diversion ring gaps of blade pressure surface are leaked in lacuna, without negative to blade
Pressure surface spreads, so as to reach the purpose of noise reduction, meanwhile, air-flow vortex is piled up in lacuna and causes lacuna inside static pressure liter
Height, the pressure differential between reducing in pressure surface and lacuna, and due in lacuna static pressure be more than suction surface, cause letting out for pressure surface
The resistance of leakage air flow direction suction surface increases, and then can reduce leakage rate, lifts blower fan air output, further, since leaf top
It is leaf that to going out, wind effect is extremely sensitive, opposing parallel side wall ensure that it is leaf without large change at leaf top, so as to ensure
Fan blade is less likely to occur tremor and abnormal sound under the operating mode of high-speed cruising.
As axial-flow leaf has above-mentioned technique effect, the blower fan and air-conditioner outdoor unit for including the axial-flow leaf also has
Corresponding technique effect.
Description of the drawings
Fig. 1 is the structural representation of axial-flow leaf provided in an embodiment of the present invention；
Partial enlarged drawings of the Fig. 2 for Fig. 1；
Fig. 3 is the front view of axial-flow leaf provided in an embodiment of the present invention；
Fig. 4 is the blade face air current flow schematic diagram of axial-flow leaf provided in an embodiment of the present invention；
Fig. 5 is axial-flow leaf provided in an embodiment of the present invention and outer machine assembling schematic diagram.
Wherein：
100- blade bodies；
110- leaves top；120- pressure surfaces；130- suction surfaces；
140- leading edges；150- trailing edges；
200- lacuna structures；
210- auxiliary blades；
220- connecting plates；
230- lacunas；
The outer machine baffle liners of 300-；
310- water conservancy diversion ring gaps；
320- air inlets；
330- air outlets.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, by the following examples, and combine attached
Figure, is further elaborated to the axial-flow leaf and the blower fan with which, air-conditioner outdoor unit of the present invention.It should be appreciated that this
The described specific embodiment in place is not intended to limit the present invention only to explain the present invention.
It should be noted that when element is referred to as " being fixed on " another element, it can directly on another element
Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or may be simultaneously present centering elements.Conversely, when element be referred to as " directly existing " another element " on " when,
There is no intermediary element.Term as used herein " vertical ", " level ", "left", "right" and similar statement are
For illustrative purposes.
The axial-flow leaf of the present invention, it is not necessary to overcome a processing difficult problem to go to reduce the gap between baffle liner and fan blade leaf top
(abbreviation water conservancy diversion ring gap), it is possible to achieve the aerodynamic noise of blower fan is effectively reduced in the baffle liner interstice coverage of relative loose,
So as to reduce the noise total value of the equipment such as blower fan, air-conditioner outdoor unit, and the blower fan of axial-flow leaf of the invention is adopted in noise
While effectively reduction, air quantity is also effectively increased.As shown in figure 1, the axial-flow leaf of one embodiment of the invention, including
Blade body 100, is provided with lacuna structure 200 at the leaf top 110 of blade body 100, lacuna structure 200 is included positioned at lacuna
Two opposing parallel side walls of 230 both sides, leaf top 110 of the opening between two side walls towards blade body 100.Lacuna is tied
Structure 200 is for preventing the air-flow that 100 pressure surface 120 of blade body is revealed by water conservancy diversion ring gap along the table of blade body 100
Towards the diffusion of suction surface 130.
Specifically, traditional axial-flow leaf is in running, the air-flow of blade pressure surface it is subject to centrifugal forces by
Gradually the clearance leakage between fan blade leaf top, and Jing baffle liners and fan blade leaf top is to blade suction surface, so as to cause fan blade gas
Dynamic noise is serious so that blower fan air output is reduced.And the axial-flow leaf of the present embodiment, lacuna is provided with its blade and blade top 110
Structure 200, lacuna structure 200 have lacuna 230, and in running, the air-flow of pressure surface 120 is subject to centrifugal force to axial-flow leaf
Effect moves closer to fan blade leaf top 110, and leaks in lacuna 230 through water conservancy diversion ring gap 310, prevents air-flow vortex to negative
Pressure surface 130 spreads, so as to realize noise reduction, meanwhile, air-flow vortex is piled up in lacuna 230 and causes 230 inside static pressure liter of lacuna
Height, the pressure differential between reducing in pressure surface 120 and lacuna 230, and due in lacuna 230 static pressure be more than suction surface 130, lead
The leakage current of cause pressure surface 120 flows to the resistance of suction surface 130 to be increased, and then can reduce leakage rate, lifts blower fan air-out
Amount, further, since leaf top 110 leaf to going out, wind effect is extremely sensitive, the opposing parallel side wall in 230 both sides of lacuna ensure that
It is leaf without large change at leaf top 110, so as to ensure that fan blade is less likely to occur tremor and abnormal sound under the operating mode of high-speed cruising,
And then ensure the mechanical efficiency of fan blade.
The version of lacuna structure 200 can have various, referring to Fig. 1, Fig. 2 and Fig. 5, it is preferable that lacuna structure 200 is wrapped
Auxiliary blade 210 is included, auxiliary blade 210 is arranged on blade body 100 on the suction surface 130 at leaf top 110；Auxiliary blade
210 and 100 parallel interval of partial blade body corresponding thereto arrange, it is relatively flat to form two positioned at 230 both sides of lacuna
Capable side wall；Orthographic projection of the edge of auxiliary blade 210 in blade body 100 is overlapped with the edge of blade body 100.Auxiliary
Interval between blade 210 and blade body 100 forms above-mentioned lacuna 230.In other embodiments, lacuna structure 200 can be with
It is the groove extended along blade body leaf top opened up at 100 leaf top 110 of blade body.
It should be noted that the parallel everywhere blade face for referring to auxiliary blade 210 with relative blade body 100
Blade face is parallel, i.e., auxiliary blade 210 with it is leaf consistent at 100 leaf top 110 of blade body, both everywhere spacing it is consistent.So,
It is 100 extra increased local blade of blade body equivalent to auxiliary blade 210, which is parallel to blade body 100, leaf and leaf
It is leaf consistent at 100 leaf top 110 of piece body, the inducement of the tremor of fan blade and abnormal sound under high-speed cruising operating mode is reduced, is reduced
The probability of abnormal sound in fan blade, it is ensured that the mechanical efficiency of fan blade there is.
Wherein, auxiliary blade 210 can be directly connected to blade body 100, it is also possible to not be directly connected to.It is preferred that
Ground, auxiliary blade 210 are connected with blade body 100 by connecting plate 220 away from the side on 100 leaf top 110 of blade body, are aided in
Blade 210, connecting plate 220 surround lacuna 230 with blade body 100.Connecting plate 220, auxiliary blade 210 and blade body 100
Can be integrally formed or using welding etc. mode be sequentially connected, connecting plate 220 can with auxiliary blade 210, blade sheet
Body 100 is dismountable connection.
Auxiliary blade 210, connecting plate 220 can the C-shaped knots of Formation cross-section after being sequentially connected with 100 three of blade body
Structure.Certainly, three can also form the structure of other shapes, wherein, connecting plate 220 can be perpendicular to auxiliary blade 210,
It can be at an acute angle between auxiliary blade 210 or obtuse angle setting.
Referring to Fig. 3, as one kind preferred embodiment, along the side of the leading edge 140 to trailing edge 150 of blade body 100
To the sectional area of lacuna 230 is gradually reduced.Due to auxiliary blade 210 it is parallel everywhere with blade body 100, along blade body
The direction of 100 leading edge 140 to trailing edge 150, the sectional area of lacuna 230 are gradually reduced, that is to say, that the width of auxiliary blade 210
It is gradually reduced to the direction of trailing edge 150 by leading edge 140.Assume that auxiliary blade 210 is parallel with 100 trailing edge 150 of blade body
The width value at edge be h, the width value at the edge parallel with 100 leading edge 140 of blade body of auxiliary blade 210 is H, auxiliary lobe
210 width of piece is x, then have h<x<H.Preferably, H=2～3h, h≤2cm.
So, fan blade is in rotary course, air-flow after leaf leading edge 140 or leaf top 110 enter lacuna 230, with fan blade
Acting and motion, 230 air-flow of lacuna gradually can flow to 150 region of leaf tail edge, in flow process medium velocity and static pressure gradually
Increase, the air-flow vortex of the leakage of leaf top 110 is limited in lacuna 230, and the energy of air-flow vortex is with rising and the air-flow of static pressure
Gradually dissipate in the motion of lacuna 230 and diminish, so as to reach the purpose of noise reduction.
Further, lacuna 230 can be through to the trailing edge 150 of blade body 100 from the leading edge 140 of blade body 100.
So, the air-flow for having not been able to be dissipated in lacuna 230 completely can be flowed out from trailing edge 150, beneficial to the air output of increase fan blade.
As one kind preferred embodiment, surround and on the side wall of lacuna 230, be provided with concave point or salient point.Surround lacuna
230 side wall, refers to wall of the auxiliary blade 210 near 230 side of lacuna, and blade body 100 is near 230 side of lacuna
Wall, and connecting plate 220 is near the wall of 230 side of lacuna, can be on above three wall or three's combination in any
Arrangement concave point or salient point, to discrete eddy airstream so as to reduce the effect of panting energy, and then contributes to reduction and makes an uproar
Sound.
As one kind preferred embodiment, auxiliary blade 210 is two or three, near the auxiliary of blade body 100
Help blade 210 parallel with blade body 100；Adjacent auxiliary blade 210 is parallel.
Referring to Fig. 4 and Fig. 5, the axial-flow leaf of the present embodiment, air-flow do work from air inlet 320 into fan blade pressure surface 120
Qu Hou, with the axial-rotation of fan blade, on the one hand air-flow obtains kinetic energy and accelerates to 330 side of air outlet, on the one hand again due to centrifugation
Power is acted on to 110 region of leaf top and being flowed, and is flowed through water conservancy diversion ring gap 310 to suction surface 130, halfway into fan blade leaf top lacuna
230, vortex cannot be diffused into suction surface 130 in being limited in leaf top lacuna 230 immediately, and as air-flow is to 150 direction of leaf tail edge
Flow, pressure gradually strengthens and promotes to breathe heavily kinetic energy dissipation disappearance on the way, and noise reduces.Simultaneously as 230 static pressure of lacuna is more than fan blade
130 region of suction surface, causes the leakage current stream of pressure surface 120 to increase to the resistance of suction surface 130, lets out therefore, it is possible to reduce
Leakage quantity, plays a part of to lift compressor flow.By the air quantity of machine over list and noise emulation experiment, the axle of the present invention is demonstrated
Stream fan blade air quantity improves 150m3/ h or so, Kuanping Terrane decline 0.8dB (A) left and right, and concrete emulation data see the table below：
As seen from the above table, it is identical it is leaf under, leaf top increases the axle stream wind of lacuna structure 200 formed by auxiliary blade 210
Leaf air quantity improves 150m3/ h or so, with the increase of rotation speed of fan, the lifting capacity of air quantity gradually increases；And as lacuna is tied
The erasure effect of structure 200, the noise improvement of axial-flow leaf 0.8～0.9dB (A).
The blower fan of one embodiment of the invention, including rotating shaft and baffle liner, also including the axle stream described in as above any embodiment
Fan blade.Wherein, blade body is circumferentially provided in rotating shaft；Baffle liner is annular, and water conservancy diversion ring is located at outside axial-flow leaf, baffle liner
It is centrally located on the centrage of rotating shaft.So as to the blower fan has noise little, the big advantage of air output, and fan blade need not be limited
Gap between leaf top and baffle liner, it is to avoid easily send out because wiping and touching the phenomenon for causing security incident between fan blade and baffle liner
It is raw.
The air-conditioner outdoor unit of one embodiment of the invention, including the axial-flow leaf described in as above any embodiment, so as to the sky
Off-premises station is adjusted to have noise little, the big advantage of air output, and the gap between fan blade leaf top and baffle liner need not be limited, it is to avoid
Easily the phenomenon of security incident is caused to occur because wiping to touch between the axial-flow leaf and air-conditioning baffle liner of traditional outer machine.
Each technical characteristic of embodiment described above arbitrarily can be combined, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and
Therefore can not be construed as limiting the scope of the patent.It should be pointed out that for one of ordinary skill in the art comes
Say, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (10)
1. a kind of axial-flow leaf, it is characterised in that include：Blade body (100), the leaf top (110) of the blade body (100)
Place is provided with lacuna structure (200)；The lacuna structure (200) includes that two positioned at lacuna (230) both sides are opposing parallel
Side wall, leaf top (110) of the opening between two side walls towards the blade body (100).
2. axial-flow leaf according to claim 1, it is characterised in that the lacuna structure (200) is including auxiliary blade
(210), the auxiliary blade (210) is arranged on the blade body (100) on the suction surface (130) at leaf top (110) place；
The auxiliary blade (210) and the blade body (100) parallel interval of part corresponding thereto are arranged, and are located at being formed
Two opposing parallel side walls of lacuna (230) both sides；The edge of the auxiliary blade (210) is in the blade body
(100) orthographic projection on is overlapped with the edge of the blade body (100).
3. axial-flow leaf according to claim 2, it is characterised in that the auxiliary blade (210) is away from the blade sheet
The side on body (100) leaf top (110) is connected with the blade body (100) by connecting plate (220), the auxiliary blade
(210), the connecting plate (220) surrounds the lacuna (230) with the blade body (100).
4. axial-flow leaf according to claim 3, it is characterised in that the lacuna (230) can be from the blade body
(100) leading edge (140) is through to the trailing edge (150) of the blade body (100).
5. axial-flow leaf according to claim 3, it is characterised in that along the leading edge (140) of the blade body (100)
To the direction of trailing edge (150), the sectional area of the lacuna (230) is gradually reduced.
6. axial-flow leaf according to claim 5, it is characterised in that the auxiliary blade (210) is parallel to the blade
The width at the edge of the trailing edge (150) of body (100) is not more than 2cm.
7. axial-flow leaf according to claim 2, it is characterised in that the auxiliary blade (210) is two or three,
The auxiliary blade (210) near the blade body (100) is parallel with the blade body (100)；Adjacent is described auxiliary
Blade (210) is helped to be parallel to each other.
8. axial-flow leaf according to claim 1, it is characterised in that be provided with the side wall for surrounding the lacuna (230)
Concave point or salient point.
9. a kind of blower fan, including rotating shaft and baffle liner, it is characterised in that also include the axle as described in any one of claim 1-8
Stream fan blade, the blade body (100) are circumferentially provided in the rotating shaft；The baffle liner is annular, and the water conservancy diversion ring sets
Outside the axial-flow leaf, the baffle liner is centrally located on the centrage of the rotating shaft.
10. a kind of air-conditioner outdoor unit, it is characterised in that include the axial-flow leaf as described in any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021308.8A CN106593952B (en) | 2017-01-12 | 2017-01-12 | Axial flow fan blade and fan and air conditioner outdoor unit with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021308.8A CN106593952B (en) | 2017-01-12 | 2017-01-12 | Axial flow fan blade and fan and air conditioner outdoor unit with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106593952A true CN106593952A (en) | 2017-04-26 |
| CN106593952B CN106593952B (en) | 2022-08-26 |
Family
ID=58582632
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710021308.8A Active CN106593952B (en) | 2017-01-12 | 2017-01-12 | Axial flow fan blade and fan and air conditioner outdoor unit with same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313978A (en) * | 2017-07-26 | 2017-11-03 | 奥克斯空调股份有限公司 | Lightweight low-load axial-flow leaf |
| CN107355424A (en) * | 2017-06-09 | 2017-11-17 | 奥克斯空调股份有限公司 | Axial-flow leaf and there is its blower fan and air-conditioner outdoor unit |
| CN108386384A (en) * | 2018-02-12 | 2018-08-10 | 中山宜必思科技有限公司 | A kind of axial flow blower of axial-flow windwheel and its application |
| CN109026849A (en) * | 2018-08-13 | 2018-12-18 | 珠海格力电器股份有限公司 | Flow-guiding structure, axial flow blower and air-conditioning |
| CN109538532A (en) * | 2018-12-19 | 2019-03-29 | 珠海格力电器股份有限公司 | Axial-flow leaf, air interchanger and air conditioner |
| CN109958641A (en) * | 2019-05-08 | 2019-07-02 | 中山宜必思科技有限公司 | A kind of axial flow blower structure of high-efficient low-noise |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107355424A (en) * | 2017-06-09 | 2017-11-17 | 奥克斯空调股份有限公司 | Axial-flow leaf and there is its blower fan and air-conditioner outdoor unit |
| CN107313978A (en) * | 2017-07-26 | 2017-11-03 | 奥克斯空调股份有限公司 | Lightweight low-load axial-flow leaf |
| CN108386384A (en) * | 2018-02-12 | 2018-08-10 | 中山宜必思科技有限公司 | A kind of axial flow blower of axial-flow windwheel and its application |
| CN109026849A (en) * | 2018-08-13 | 2018-12-18 | 珠海格力电器股份有限公司 | Flow-guiding structure, axial flow blower and air-conditioning |
| CN109538532A (en) * | 2018-12-19 | 2019-03-29 | 珠海格力电器股份有限公司 | Axial-flow leaf, air interchanger and air conditioner |
| WO2020125128A1 (en) * | 2018-12-19 | 2020-06-25 | 珠海格力电器股份有限公司 | Axial flow fan blade, ventilation device and air conditioner |
| CN109958641A (en) * | 2019-05-08 | 2019-07-02 | 中山宜必思科技有限公司 | A kind of axial flow blower structure of high-efficient low-noise |
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