CN108716473A - A kind of aerofoil fan and air-conditioner outdoor unit - Google Patents
A kind of aerofoil fan and air-conditioner outdoor unit Download PDFInfo
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- CN108716473A CN108716473A CN201810175603.3A CN201810175603A CN108716473A CN 108716473 A CN108716473 A CN 108716473A CN 201810175603 A CN201810175603 A CN 201810175603A CN 108716473 A CN108716473 A CN 108716473A
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- air
- aerofoil fan
- ducting ring
- main body
- blade
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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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of aerofoil fan and air-conditioner outdoor unit, is related to technical field of refrigeration equipment.For solving the problem of how to reduce the tip vortex that aerofoil fan generates when rotated to increase air-out volume while reduce noise.The aerofoil fan of the present invention includes air-ducting ring and the aerofoil fan main body in the air-ducting ring, gap between the outer edge of the aerofoil fan main body and the air-ducting ring inner wall is less than or equal to 11mm, width of the air-ducting ring along own central axis line direction is the blade of the aerofoil fan main body along 0.4~0.6 times of width of the central axes direction of the air-ducting ring, and the outlet air end of the air-ducting ring at a distance from the central axes direction of the air-ducting ring is -5mm~5mm between the outlet air end of the blade of the aerofoil fan main body.The aerofoil fan of the present invention is used for air-conditioner outdoor unit.
Description
Technical field
The present invention relates to technical field of refrigeration equipment more particularly to a kind of aerofoil fans and air-conditioner outdoor unit.
Background technology
The air-out volume and noise size of air-conditioner outdoor unit are always the important indicator concerning properties of product and comfort,
And in air-conditioner outdoor unit, aerofoil fan is the critical component for influencing air-out volume and noise.
Aerofoil fan includes air-ducting ring and aerofoil fan main body, and air-ducting ring is fixed on the shell of air-conditioner outdoor unit, axis
Flow fan main body is set in air-ducting ring, and the central axes of aerofoil fan are conllinear with the central axes of air-ducting ring, and aerofoil fan main body exists
When rotation, pressure difference is generated between the pressure face and suction surface of the blade of aerofoil fan main body, under the action of this pressure difference, pressure
The outer edge that the air-flow in power face is easy to cross blade leaks to suction surface, is produced between the primary air in the leakage current and air-ducting ring
Raw volume forms vortex, as tip vortex after inhaling, which can block primary air runner, and the tip vortex is hit with primary air
Noise is easy tod produce, the air-out volume of air-conditioner outdoor unit is thus reduced, while increasing noise.It is asked in order to avoid above-mentioned
Topic, can design new axial flow fan structure, to reduce tip vortex, to achieve the purpose that increase air-out volume, reduce noise,
But there is not yet such design at present.
Invention content
A kind of aerofoil fan of present invention offer and air-conditioner outdoor unit, for solving how to reduce aerofoil fan when rotated
The tip vortex of generation, to increase air-out volume, while the problem of reduce noise.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：
In a first aspect, the present invention provides a kind of aerofoil fan, including air-ducting ring and the axis stream in the air-ducting ring
Fan main body, the gap between the outer edge of the aerofoil fan main body and the air-ducting ring inner wall are less than or equal to 11mm, institute
State air-ducting ring along own central axis line direction width be the aerofoil fan main body blade along the central axes side of the air-ducting ring
To 0.4~0.6 times of width, edge between the outlet air end of the blade of the outlet air end of the air-ducting ring and the aerofoil fan main body
The distance in the central axes direction of the air-ducting ring is -5mm~5mm.
Preferably, the gap between the outer edge of the aerofoil fan main body and the air-ducting ring inner wall is greater than or equal to
5mm.It is further preferred that the gap between the outer edge and the inner wall of the air-ducting ring of the aerofoil fan main body is 8mm.
Preferably, width of the air-ducting ring along own central axis line direction is the blade of the aerofoil fan main body described in
0.5 times of the width in the central axes direction of air-ducting ring.
Preferably, it is led along described between the outlet air end of the air-ducting ring and the outlet air end of the blade of the aerofoil fan main body
The distance in the central axes direction of solar or lunar halo is 5mm.
Second aspect is set the present invention provides a kind of air-conditioner outdoor unit, including shell and aerofoil fan on the shell
It is the aerofoil fan described in any technical solution as above to have air outlet, the aerofoil fan, the air-ducting ring of the aerofoil fan
Wind inlet end is located in the shell, and the outlet air end of the air-ducting ring is connect for one week with the shell border at the air outlet.
Optionally, the air-ducting ring is integrally formed with the shell.Optionally, the outlet air end of the air-ducting ring is equipped with connection
The outlet air end of flange, the air-ducting ring is connect by the connecting flange with the shell border at the air outlet for one week.
A kind of aerofoil fan and air-conditioner outdoor unit provided by the invention, due to the process rotated in aerofoil fan main body
In, the tip vortex on the blade edge edge of aerofoil fan main body is resulted from by passing through close to the region of air-ducting ring inner wall in air-ducting ring, is led
The inner wall of solar or lunar halo can interfere tip vortex, therefore opposite between air-ducting ring and aerofoil fan main body by rationally designing
Position can be such that the inner wall of air-ducting ring upsets and destroy the turbulent state of tip vortex, and make the air-flow for being in turbulent state originally
It is flowed outward with turbulence form, to avoid causing to block to primary air, prevents from generating impact between primary air, and then improve
Air-out volume, reduces noise.Wherein, the parameter packet for characterizing the relative position between air-ducting ring and aerofoil fan main body
It includes：Gap, air-ducting ring between the outer edge and air-ducting ring inner wall of aerofoil fan main body along own central axis line direction width with
The blade of aerofoil fan main body is along the ratio between width in central axes direction of air-ducting ring, the outlet air end of air-ducting ring and aerofoil fan main body
Blade outlet air end between along the central axes direction of air-ducting ring distance, by l-G simulation test these three parameters respectively with outlet air
Relationship between air quantity and noise, and choose value corresponding when these three parameters are larger in air-out volume and noise is smaller
Reduce the tip vortex that aerofoil fan generates when rotated, increases air-out volume, reduce noise.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the first stereogram of aerofoil fan of the embodiment of the present invention；
Fig. 2 is wind field distribution map of the aerofoil fan at 0 ° of section of blade a shown in Fig. 1；
Fig. 3 is wind field distribution map of the aerofoil fan at 30 ° of sections of blade a shown in Fig. 1；
Fig. 4 is wind field distribution map of the aerofoil fan at 60 ° of sections of blade a shown in Fig. 1；
Fig. 5 is wind field distribution map of the aerofoil fan at 90 ° of sections of blade a shown in Fig. 1；
Fig. 6 is wind field distribution map of the aerofoil fan at 120 ° of sections of blade a shown in Fig. 1；
Fig. 7 is the side view of aerofoil fan of the embodiment of the present invention；
Between Fig. 8 is between the outer edge and the inner wall of air-ducting ring of aerofoil fan Axial-Flow fan main body of the embodiment of the present invention
When gap α is respectively 5mm, 8mm, 10mm and 15mm, the graph of relation between the rotating speed and air-out volume of aerofoil fan main body；
Fig. 9 is width h and aerofoil fan master of the air-ducting ring along own central axis line direction in aerofoil fan of the embodiment of the present invention
Graph of relation of the blade of body along the ratio between width H in central axes direction of air-ducting ring between air-out volume and noise；
Figure 10 is the outlet air of the blade of the outlet air end and aerofoil fan main body of air-ducting ring in aerofoil fan of the embodiment of the present invention
When distance δ between end along the central axes direction of air-ducting ring is respectively 25mm, 15mm, 5mm, -5mm, aerofoil fan main body turns
Graph of relation between speed and air-out volume；
Figure 11 is the outlet air of the blade of the outlet air end and aerofoil fan main body of air-ducting ring in aerofoil fan of the embodiment of the present invention
When distance δ between end along the central axes direction of air-ducting ring is respectively 25mm, 15mm, 5mm, -5mm, aerofoil fan main body turns
Graph of relation between speed and noise；
Figure 12 is second of stereogram of aerofoil fan of the embodiment of the present invention；
Figure 13 is wind field distribution map of the aerofoil fan at 30 ° of sections of blade a ' shown in Figure 12；
Figure 14 is wind field distribution map of the aerofoil fan at 60 ° of sections of blade a ' shown in Figure 12；
Figure 15 is wind field distribution map of the aerofoil fan at 90 ° of sections of blade a ' shown in Figure 12；
Figure 16 is wind field distribution map of the aerofoil fan at 120 ° of sections of blade a ' shown in Figure 12.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term "center", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on ... shown in the drawings
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated device or
Element must have a particular orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.?
In description of the invention, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection；It can be directly connected, can also can be indirectly connected through an intermediary the company inside two elements
It is logical.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
In embodiments of the present invention, as shown in Figure 1, aerofoil fan includes air-ducting ring 1 and the axis stream wind in air-ducting ring 1
Fan main body 2, it should be noted that tip vortex refers to：Aerofoil fan main body 2 when rotated, the blade 21 of aerofoil fan main body 2
Because there are pressure differences between pressure face and suction surface, and the outer edge for making the air-flow of pressure face cross blade 21 leaks to suction
Face generates the vortex formed after volume is inhaled between the leakage current and primary air.Wherein, the pressure face of blade 21 is 21 direction of blade
The surface of the inlet side of aerofoil fan main body 2, the suction surface of blade 21 are blade 21 towards the air side of aerofoil fan main body 2
Surface.
For the factor of analyzing influence tip vortex, select the blade a in Fig. 1 as research object, from the blade tip of the blade
a1Place starts, and the tea residue a of the blade is arrived in one section of every 30 ° of selections2Terminate at place.Simulation analysis aerofoil fan main body 2 is rotating
When blade a the wind field in each section be distributed as shown in Fig. 2~Fig. 6.As shown in Fig. 2, when air-flow flow to 0 ° of leaf position shown in Fig. 1
When, blade a just starts to cut air, and blade tip a1Size it is smaller, between blade pressure surface and suction surface without pressure difference generate, institute
Not generate tip vortex at the blade tip in oval range；As shown in figure 3, when air-flow flows to 30 ° of leaf positions shown in Fig. 1
When, tip vortex is formed at the blade tip in oval range；As shown in figure 4, when air-flow flows to 60 ° of leaf positions shown in Fig. 1, leaf
Sharp whirlpool is moved to close to the position of air-ducting ring inner wall, and due to the interference of air-ducting ring, tip vortex is deformed and to aerofoil fan master
It moves the air side of body；As shown in figure 5, when air-flow flows to 90 ° of leaf positions shown in Fig. 1, tip vortex is along air-ducting ring
Wall continues to move to the air side of aerofoil fan main body；As shown in fig. 6, when air-flow flows to 120 ° of leaf positions shown in Fig. 1,
Tip vortex is moved to the air side of aerofoil fan main body.The process rotated in aerofoil fan main body 2 it can be seen from Fig. 2~Fig. 6
In, inner wall of the tip vortex from the inlet air side of aerofoil fan main body 2 Jing Guo air-ducting ring 1 is moved to the air side of aerofoil fan main body 2.
Therefore air-ducting ring 1 can interfere tip vortex.
Referring to Fig. 7, Fig. 7 is a kind of embodiment of aerofoil fan of the embodiment of the present invention, and the aerofoil fan of the present embodiment includes
Air-ducting ring 1 and the aerofoil fan main body 2 in the air-ducting ring 1, outer edge and the wind-guiding of the aerofoil fan main body 2
Gap α between the inner wall of circle 1 is less than or equal to 11mm, and width h of the air-ducting ring 1 along own central axis line direction is the axis
The blade 21 of flow fan main body 2 along 0.4~0.6 times of width H of the central axes direction of the air-ducting ring 1, the air-ducting ring 1
Outlet air end is between the outlet air end of the blade 21 of the aerofoil fan main body 2 along the central axes direction distance δ of the air-ducting ring 1
For -5mm~5mm.
A kind of aerofoil fan provided by the invention, as shown in Fig. 2~Fig. 6, due to the process rotated in aerofoil fan main body 2
In, the tip vortex at 21 edge of blade of aerofoil fan main body 2 is resulted from by the region of the interior inner wall close to air-ducting ring 1 of air-ducting ring 1
Pass through, the inner wall of air-ducting ring 1 can interfere tip vortex, therefore by rationally designing air-ducting ring 1 and aerofoil fan main body 2
Between relative position, the inner wall of air-ducting ring 1 can be made to upset and destroy the turbulent state of tip vortex, and make originally in vortex
The air-flow of state is flowed outward with turbulence form, to avoid causing to block to primary air, prevents from generating punching between primary air
It hits, and then improves air-out volume, reduce noise.Wherein, for characterizing the phase between air-ducting ring 1 and aerofoil fan main body 2
Parameter to position includes：Gap α, air-ducting ring 1 between the outer edge and the inner wall of air-ducting ring 1 of aerofoil fan main body 2 is along certainly
The width h in body central axes direction and the blade 21 of aerofoil fan main body 2 along the ratio between the width H in central axes direction of air-ducting ring 1 λ,
The outlet air end of air-ducting ring 1 is between the outlet air end of the blade 21 of aerofoil fan main body 2 at a distance from the central axes direction of air-ducting ring 1
δ obtains these three parameters (α, λ, δ) relationship between air-out volume and noise respectively by experiment, and chooses these three ginsengs
Number and noise larger in air-out volume value corresponding when smaller can reduce the tip vortex that aerofoil fan generates when rotated, increase
Big air-out volume reduces noise.
Wherein, in order to analyze the gap α between the outer edge of aerofoil fan main body 2 and the inner wall of air-ducting ring 1 and outlet air wind
Relationship between amount, when can be respectively 5mm, 8mm, 10mm and 15mm by testing detector gap α, aerofoil fan is in axis stream wind
The rotating speed for fanning main body 2 is the air-out volume under 675r/min and 820r/min, and experimental result is recorded in Fig. 8.It can by Fig. 8
To find out, under same rotating speed, with the reduction of gap α, air-out volume gradually increases, in order to make aerofoil fan go out with larger
Wind air quantity selects the gap α between the outer edge and the inner wall of air-ducting ring 1 of aerofoil fan main body 2 to be less than or equal to 11mm, at this time
The air-out volume of aerofoil fan is larger.
In the above-described embodiments, since the gap α between the outer edge of aerofoil fan main body 2 and the inner wall of air-ducting ring 1 is got over
Small, the requirement of dimensional accuracy and assembly precision to aerofoil fan main body and air-ducting ring is higher, the manufacture difficulty of aerofoil fan and
Transport difficulty is bigger, therefore, in order under the premise of increasing the air-out volume of aerofoil fan, reduce the manufacture difficulty of aerofoil fan
And transport difficulty, it is further preferred that the gap α between the outer edge of aerofoil fan main body 2 and the inner wall of air-ducting ring 1 be more than or
Equal to 5mm, at this point, air-out volume is larger, the manufacture of aerofoil fan and transport difficulty are smaller.It is further preferred, axis stream wind
It is 8mm to fan the gap α between the outer edge and the inner wall of air-ducting ring 1 of main body 2, at this point, ensureing that it is larger that aerofoil fan has
While air-out volume, manufacture and the transport difficulty of aerofoil fan are reduced as much as possible.
In order to verify air-ducting ring 1 along the width h in own central axis line direction and the blade 21 of aerofoil fan main body 2 along air-ducting ring
Relationships of the ratio between the 1 width H in central axes direction between λ and air-out volume and noise can detect aerofoil fan by experiment
Width H of the blade 21 of main body 2 along the central axes direction of air-ducting ring 1 is 200mm, width of the air-ducting ring 1 along own central axis line direction
When degree h is respectively 40mm, 50mm, 70mm, 100mm and 100mm or more, the air-out volume and noise of aerofoil fan, and will be real
Result is tested to be recorded in Fig. 9.As seen from Figure 9, the air-out volume of aerofoil fan subtracts afterwards as the increase of width h first increases
Small, noise increases afterwards as the increase of width h first reduces, and selects width h for 80~120mm, that is to say that λ is 0.4~0.6, this
When, the air-out volume of aerofoil fan is larger, and noise is smaller.
In the above-described embodiments, it is further preferred that air-ducting ring 1 along own central axis line direction width h and aerofoil fan
The blade 21 of main body 2 is 0.5 along the ratio between the width H in central axes direction of air-ducting ring 1 λ, at this point, the air-out volume of aerofoil fan reaches
To maximum value, noise is close to minimum value.
In order to verify between the outlet air end of air-ducting ring 1 and the outlet air end of the blade 21 of the aerofoil fan main body 2 along wind-guiding
The relationship between the distance δ and air-out volume and noise in 1 central axes direction is enclosed, can be respectively by testing detecting distance δ
When 25mm, 15mm, 5mm, -5mm, aerofoil fan is 680r/min, 730r/min, 780r/ in the rotating speed of aerofoil fan main body 2
Air-out volume under min, 800r/min, 820r/min and noise, and air-out volume and noise experiment result are recorded in respectively
In Figure 10 and Figure 11.When the outlet air end of air-ducting ring 1 and the blade 21 of aerofoil fan main body 2 it can be seen from Figure 10 and Figure 11
Between outlet air end along the distance δ in the central axes direction of air-ducting ring 1 be -5mm~5mm when, the air-out volume of aerofoil fan is larger,
Noise is smaller, therefore, selects between the outlet air end of air-ducting ring 1 and the outlet air end of the blade 21 of aerofoil fan main body 2 along air-ducting ring 1
Central axes direction distance δ be -5mm~5mm.
Wherein, it should be noted that when distance δ is positive number, then it represents that the outlet air end of the blade 21 of aerofoil fan main body 2
Positioned at air-ducting ring 1 outlet air end close to air-ducting ring 1 wind inlet end side；When distance δ is negative, then it represents that aerofoil fan master
The outlet air end of the blade 21 of body 2 stretches out wind inlet end setting of the outlet air end of air-ducting ring 1 far from air-ducting ring 1.
In addition, it is further preferred that between the outlet air end of the blade 21 of the outlet air end and aerofoil fan main body 2 of air-ducting ring 1
Distance δ along the central axes direction of air-ducting ring 1 is 5mm, at this point, the air-out volume of aerofoil fan is maximum, noise is minimum.
According to presented above, Figure 12 is a kind of preferred structure of aerofoil fan of the embodiment of the present invention, in the aerofoil fan,
Gap α between the outer edge and the inner wall of air-ducting ring 1 of aerofoil fan main body 2 is 8mm, and air-ducting ring 1 is along own central axis line direction
The blade 21 of width h and aerofoil fan main body 2 along the ratio between the width H in central axes direction of air-ducting ring 1 λ be 0.5, air-ducting ring 1
Outlet air end between the outlet air end of the blade 21 of aerofoil fan main body 2 along the central axes direction distance δ of air-ducting ring 1 be 5mm.
Can reduce tip vortex to verify the aerofoil fan after optimization, can select blade a ' in aerofoil fan shown in Figure 12 as
Research object, from the blade tip a of the blade1' place starts, and the tea residue a of the blade is arrived in one section of every 30 ° of selections2' place terminates.It is imitative
When rotated, wind field of the aerofoil fan at 30 °, 60 °, the 90 ° and 120 ° sections of blade a ' divides true analysis aerofoil fan main body
Cloth is respectively as shown in Figure 13, Figure 14, Figure 15 and Figure 16.The mistake rotated in aerofoil fan main body 2 it can be seen from Figure 13~Figure 16
Cheng Zhong, inner wall of the tip vortex by the inlet air side of aerofoil fan main body 2 Jing Guo air-ducting ring 1, and upset by the inner wall of air-ducting ring 1, make
It obtains the tip vortex in turbulent state originally to flow to the air side of aerofoil fan main body with turbulence form, thus avoid to main gas
Stream causes to block, and prevents from generating impact between primary air, and then improve air-out volume, reduces noise.
The embodiment of the present invention additionally provides a kind of air-conditioner outdoor unit, including shell and aerofoil fan, is set on the shell
It is the aerofoil fan described in any technical solution as above to have air outlet, the aerofoil fan, the air-ducting ring of the aerofoil fan
Wind inlet end is located in the shell, and the outlet air end of the air-ducting ring is connect for one week with the shell border at the air outlet.
Due to each embodiment of the aerofoil fan and above-mentioned aerofoil fan that are used in the air-conditioner outdoor unit of the present embodiment
The aerofoil fan of middle offer is identical, therefore the two can solve identical technical problem, and reaches identical desired effect.
The connection of the shell border at outlet air end and air outlet in order to realize air-ducting ring, may be used the following two kinds implementation
Example is realized：
Embodiment one：Air-ducting ring is integrally formed with shell.In this way, the parts that air-conditioner outdoor unit includes can be reduced
Quantity reduces the assembly complexity of air-conditioner outdoor unit.
Embodiment two：The outlet air end of air-ducting ring is equipped with connecting flange, and the outlet air end of air-ducting ring passes through connecting flange and outlet air
Shell border at mouthful connects for one week.This is simple in structure, easy to implement.
Other compositions of air-conditioner outdoor unit about the embodiment of the present invention etc. have been well known to those skilled in the art,
It is no longer described in detail herein.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, all answer by the change or replacement that can be readily occurred in
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of the claims
It is accurate.
Claims (8)
1. a kind of aerofoil fan, including air-ducting ring and the aerofoil fan main body in the air-ducting ring, which is characterized in that described
Gap between the outer edge of aerofoil fan main body and the air-ducting ring inner wall is less than or equal to 11mm, and the air-ducting ring is along itself
The width in central axes direction be the aerofoil fan main body blade along the central axes direction of the air-ducting ring width 0.4~
0.6 times, between the outlet air end of the blade of the outlet air end of the air-ducting ring and the aerofoil fan main body along the air-ducting ring
The distance of axis direction is -5mm~5mm.
2. aerofoil fan according to claim 1, which is characterized in that the outer edge of the aerofoil fan main body is led with described
Gap between the inner wall of solar or lunar halo is greater than or equal to 5mm.
3. aerofoil fan according to claim 1, which is characterized in that the outer edge of the aerofoil fan main body is led with described
Gap between the inner wall of solar or lunar halo is 8mm.
4. aerofoil fan according to claim 1, which is characterized in that width of the air-ducting ring along own central axis line direction
For the aerofoil fan main body blade along 0.5 times of width of the central axes direction of the air-ducting ring.
5. aerofoil fan according to claim 1, which is characterized in that the outlet air end of the air-ducting ring and the aerofoil fan
Between the outlet air end of the blade of main body along the distance in the central axes direction of the air-ducting ring be 5mm.
6. a kind of air-conditioner outdoor unit, which is characterized in that including shell and aerofoil fan, the shell is equipped with air outlet, institute
It is aerofoil fan according to any one of claims 1 to 5, the wind inlet end position of the air-ducting ring of the aerofoil fan to state aerofoil fan
In in the shell, the outlet air end of the air-ducting ring is connect for one week with the shell border at the air outlet.
7. air-conditioner outdoor unit according to claim 6, which is characterized in that the air-ducting ring and the shell one at
Type.
8. air-conditioner outdoor unit according to claim 6, which is characterized in that the outlet air end of the air-ducting ring is equipped with connection method
The outlet air end of orchid, the air-ducting ring is connect by the connecting flange with the shell border at the air outlet for one week.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810175603.3A CN108716473B (en) | 2018-03-02 | 2018-03-02 | Axial fan and air conditioner outdoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810175603.3A CN108716473B (en) | 2018-03-02 | 2018-03-02 | Axial fan and air conditioner outdoor unit |
Publications (2)
| Publication Number | Publication Date |
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| CN108716473A true CN108716473A (en) | 2018-10-30 |
| CN108716473B CN108716473B (en) | 2020-12-29 |
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| CN201810175603.3A Active CN108716473B (en) | 2018-03-02 | 2018-03-02 | Axial fan and air conditioner outdoor unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111486516A (en) * | 2020-04-20 | 2020-08-04 | 青岛海信日立空调***有限公司 | Outdoor unit of air conditioner |
| US20220252282A1 (en) * | 2019-12-26 | 2022-08-11 | Guangdong Midea White Home Appliance Technology Innovation Center Co., Ltd. | Air Conditioner Outdoor Unit |
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| Publication number | Publication date |
|---|---|
| CN108716473B (en) | 2020-12-29 |
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