CN106762823A - Multiple flow passages axle stream wind focuses on impeller - Google Patents
Multiple flow passages axle stream wind focuses on impeller Download PDFInfo
- Publication number
- CN106762823A CN106762823A CN201611237715.4A CN201611237715A CN106762823A CN 106762823 A CN106762823 A CN 106762823A CN 201611237715 A CN201611237715 A CN 201611237715A CN 106762823 A CN106762823 A CN 106762823A
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- China
- Prior art keywords
- axle stream
- helical blade
- axle
- runner
- stream runner
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Classifications
-
- 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
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
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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
- F04D29/26—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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer 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
- F04D29/666—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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Wind Motors (AREA)
Abstract
Impeller is focused on the invention discloses a kind of multiple flow passages axle stream wind, including at least two-layer axle stream runner that the axle center that impeller is focused on around the multiple flow passages axle stream wind sets gradually, helical blade on later layer axle stream runner is N times of preceding layer axle stream runner, 2 helical blades on any one helical blade correspondence later layer axle stream runner on axle stream runner described in preceding layer, corresponding 2 helical blades are interspersed and the preceding limb of the preceding limb helical blade corresponding with preceding layer of a wherein helical blade is located on same curved line, the rear limb of the rear limb helical blade corresponding with preceding layer of another helical blade is located on same curved line.The present invention not only effectively increases outlet air surface, area of dissipation is big, and the area of the blade of sublevel axle stream runner is gradually reduced, wind cutting leaf line gradually increases, front and rear layer shares leaf line, and wheel speed is high, is effectively increased wind speed and blast, prevent the wind-force of adjacent axle stream runner from interfering, and impeller depanning difficulty is small.
Description
Technical field
Impeller is focused on the present invention relates to a kind of axle stream wind, more particularly to a kind of multiple flow passages axle stream wind with multiple runners gathers
Burnt impeller.
Background technology
Fan has two kinds of axle stream and radial-flow type, the flow direction of air when being with fan work and is divided.Axle stream
During formula fan work, blades push air flows with axle identical direction, so referred to as aerofoil fan.Aerofoil fan is divided into greatly
Profile shaft flow fan, medium-sized aerofoil fan, small axial flow fan, the aerofoil fan suitable using place selection according to demand.One
As for, large-scale aerofoil fan is primarily adapted for use in the air draft in the place of dust, rubble or the like；Medium-sized aerofoil fan is mainly fitted
With with indoor ventilation and heat extraction, for example：Silo etc.；Small axial flow fan is mainly applicable the ventilation and heat with plant equipment, example
Such as：Regulator cubicle etc..
But existing aerofoil fan often has wind-force not enough, radiating surface is small, the not good problem of radiating effect, if
Increase radiating surface and the length of increase blade simply, then occur that blade vibration is big again, noise big problem.If by axle
Flow fan carries out multiple flow passages setting, then can be interfered due to the wind-force between adjacent channels, or even can reduce wind-force, and radiating effect is more
Difference, therefore, it is badly in need of a kind of new aerofoil fan for solving the above problems.
The content of the invention
Impeller is focused on it is an object of the invention to provide a kind of multiple flow passages axle stream wind, area of dissipation is big, wind-force is big, radiating effect
It is good.
It is upper purposeful in order to realize, impeller is focused on the invention discloses a kind of multiple flow passages axle stream wind, including around described many
Runner axle stream wind focuses at least two-layer axle stream runner that the axle center of impeller sets gradually, and later layer axle stream runner is around preceding layer axle
Stream runner, is respectively equipped with several helical blades on each axle stream runner, the helical blade on later layer axle stream runner is previous
N times of layer axle stream runner, N is the integer more than or equal to 2, and each helical blade includes poly- positioned at the multiple flow passages axle stream wind
The preceding limb of the air inlet side of burnt impeller and the rear limb positioned at the air outlet side of multiple flow passages axle stream wind focusing impeller,
And 2 helical blades on any one helical blade correspondence later layer axle stream runner on axle stream runner described in preceding layer, it is latter
Helical blade corresponding with preceding layer axle stream runner is respectively the first helical blade and the second helical blade, institute on layer axle stream runner
State the first helical blade and the second helical blade be interspersed successively, and first helical blade preceding limb and preceding layer axle
The preceding limb position of the corresponding helical blade is relative in stream runner and is located on same curved line, second helical blade
Rear limb it is relative with the rear limb position of the corresponding helical blade in preceding layer axle stream runner and be located at same curved line
On.
Compared with prior art, axle stream wind of the invention focuses on impeller and is provided with multiple axle stream runners, later layer axle stream runner
It is divided into two parts along limb by preceding layer axle stream runner, not only effectively increases outlet air surface, area of dissipation is big, and due to latter
The helical blade of layer axle stream runner is divided into two or one point is many so that the area of each blade reduces, and axle stream wind is focused on
Impeller can realize rotating speed high, effectively increase wind velocity and blast.And later layer axle stream runner has more than preceding layer axle stream runner
One times or more than one times of wind cutting leaf line (limb), under identical rotating speed, effectively increases air quantity.Furthermore, preceding layer axle
The limb that stream runner is located at air inlet side is always located at same with the limb of a part of blade homonymy of later layer axle stream runner
On curved line, the limb of preceding layer axle stream runner be located at the limb of air outlet side always with a part of leaf of later layer axle stream runner
The limb of piece homonymy is located on same curved line, not only causes that preceding layer axle stream runner is shared with later layer axle stream runner same
Go out loft, reduce depanning difficulty, and cause that preceding layer axle stream runner and later layer axle stream runner share leaf line, can effectively subtract
Few wind-force interference between preceding layer axle stream runner and later layer axle stream runner.
It is preferred that axle stream runner described at least two includes the first axle stream runner of annular and is surrounded on the first axle stream
The second annular axle stream runner outside runner, is provided with M helical blade, the second axle stream runner in the first axle stream runner
2M helical blade is inside provided with, the 2M helical blade is located at the second axle stream runner around the axle center with a determining deviation
Interior stream wall surrounding, M is more than or equal to 3, in first axle stream runner the preceding limb of M helical blades with the second axle stream runner in
The M preceding limb position of the spaced helical blade is relative and is located on same curved line, M in first axle stream runner
The rear limb position of the rear limb of the helical blade other M spaced helical blade with the second axle stream runner
Put relative and be located on same curved line.
Specifically, axle stream runner described at least two also includes annular the 3rd being surrounded on outside the second axle stream runner
Axle stream runner, is provided with 4N the 3rd helical blade in the 3rd axle stream runner, the 2M helical-blade in the second axle stream runner
The preceding limb of piece is relative with the position of 2M in the 3rd axle stream runner spaced helical blade and is located at same arc
On shape line, the 2M rear limb of the helical blade sets with other 2M interval in the 3rd axle stream runner in the second axle stream runner
The rear limb position of the helical blade put is relative and is located on same curved line.
It is preferred that one end that each axle stream runner closes on the axle center is provided with the Nei Liubi of annular, away from the axle
One end of the heart is provided with the outflow wall of annular, and the helical blade in the axle stream runner is formed between the interior stream wall and outflow wall,
And respectively with it is described it is interior stream wall and outflow wall be connected.Wherein, the outflow wall being connected with helical blade can effectively eliminate blade vibration,
Prevent from that overflow is centrifuged so that the axle stream focusing impeller noise is small, and wind-force is big.
More preferably, the interior stream wall of the outflow wall of axle stream runner described in preceding layer and axle stream runner described in later layer shares same
The division wall of annular, and be located inside and outside the division wall respectively.
It is preferred that in latter axle stream runner, the preceding limb of first helical blade is corresponding with preceding layer axle stream runner
The preceding limb of the helical blade be connected and form a continuous curved line, the rear limb of second helical blade with it is previous
The rear limb of the corresponding helical blade is connected and forms a continuous curved line in layer axle stream runner.When axle described in preceding layer
When the interior stream wall of the outflow wall and axle stream runner described in later layer that flow runner shares the division wall of same annular, first spiral
The preceding limb of blade is joined directly together with the preceding limb of the corresponding helical blade in preceding layer axle stream runner and to form one continuous
Curved line, when axle stream runner described in preceding layer outflow wall and axle stream runner described in later layer Nei Liubi not share division wall
When, it is necessary to axle stream runner described in preceding layer outflow wall where division wall and axle stream runner described in later layer interior stream wall where
A camber line for connecting two-layer limb is formed between division wall.
It is preferred that in latter axle stream runner, the preceding limb of first helical blade is corresponding with preceding layer axle stream runner
The helical blade preceding limb position it is relative and on same logarithmic spiral curve, the posterior lobe of second helical blade
Side is relative with the rear limb position of the corresponding helical blade in preceding layer axle stream runner and forms same logarithmic spiral curve
On.Further increase multiple flow passages axle stream wind and focus on the wind intensity of impeller and the stationarity of wind.Certainly, the logarithmic spiral curve
Can be replaced by other helical curves, conic section.
It is preferred that some described helical blade in the axle stream runner is in the projection head and the tail weight on the axle center
It is folded.The program can effectively increase axle stream and focus on the blast of impeller and and suppress backflow.
It is preferred that the helical blade quantity in axle stream runner described in later layer is the spiral in axle stream runner described in preceding layer
2 times of blade, a limb of the helical blade and the corresponding spiral in preceding layer axle stream runner in later layer axle stream runner
The limb of blade is located on same curved line, and another limb of the helical blade is located at preceding layer axle in later layer axle stream runner
The centre of the two limbs projection of the correspondence helical blade in stream runner.Now, the helical blade phase in later layer axle stream runner
Two are divided into for the helical blade in preceding layer axle stream runner.
Wherein, the blade root that the helical blade flows on wall in its axle stream runner focuses on impeller along the multiple flow passages axle stream wind
It is axially arranged, form the preceding limb with the air inlet side, form the rear limb in the air outlet side, often
Projection of the preceding limb and rear limb of helical blade described in the plane perpendicular to the axle center is arc and with one
Set a distance.
It is preferred that the helical blade is logarithmic spiral blade so that flowing of the air on blade is smooth, wind-force it is big and
Steadily.More preferably, the helical blade is three rank logarithmic spiral blades.
It is preferred that the middle concave of the air outlet is in surrounding, so as to form the outlet air surface indent of the air outlet so that wind
Power is focused in air outlet to centre so that wind-force is big at the axle center of multiple flow passages axle stream wind focusing impeller, good heat dissipation effect.
Brief description of the drawings
Fig. 1 is the three-dimensional schematic diagram that dual channel axle stream wind of the present invention focuses on one angle of impeller.
Fig. 2 is the three-dimensional schematic diagram that dual channel axle stream wind of the present invention focuses on another angle of impeller.
Fig. 3 is that dual channel axle stream wind of the present invention focuses on one floor map of angle of impeller.
Fig. 4 is the three-dimensional schematic diagram that dual channel axle stream wind of the present invention focuses on another angle of impeller.
Fig. 5 is the side view that dual channel axle stream wind of the present invention focuses on impeller.
Fig. 6 is the three-dimensional schematic diagram that three runners axle stream wind of the present invention focuses on one angle of impeller.
Fig. 7 is the three-dimensional schematic diagram that three runners axle stream wind of the present invention focuses on another angle of impeller.
Fig. 8 is that three runners axle stream wind of the present invention focuses on one floor map of angle of impeller.
Fig. 9 is the three-dimensional schematic diagram that three runners axle stream wind of the present invention focuses on another angle of impeller.
Specific embodiment
To describe technology contents of the invention, structural feature, the objects and the effects in detail, below in conjunction with implementation method
And coordinate accompanying drawing to be explained in detail.
Referring to figs. 1 to Fig. 5, impeller 100 is focused on the invention discloses a kind of dual channel axle stream wind, including around the double fluid
Road axle stream wind focuses on ground floor axle stream runner 201 and second layer axle stream runner 202 that the axle center of impeller 100 sets gradually, second
Around ground floor runner 201, ground floor axle stream runner 201 is provided with N number of helical blade 21, second layer axle to layer axle stream runner 202
Stream runner 202 is provided with 2N helical blade 22, and the helical blade on second layer axle stream runner 202 is ground floor axle stream runner
2 times of 201, the helical blade 21,22 includes being focused on positioned at the dual channel axle stream wind air inlet 101 1 of impeller 100
The preceding limb of side and the rear limb positioned at the side of air outlet 102 of dual channel axle stream wind focusing impeller 100, and ground floor axle
2 helical blades 22 on the corresponding second layer axle stream runner 202 of any one helical blade 21 on stream runner 201, second layer axle
On stream runner 202 the first helical blade 221 and the second spiral are respectively with the corresponding helical blade 22 of ground floor axle stream runner 201
Blade 222, the helical blade 222 of first helical blade 221 and second is interspersed successively, and first helical blade
221 preceding limb is relative with the preceding limb position of the corresponding helical blade 21 and is located at same curved line (including logarithm spiral shell
Other arc curves such as rotation helical curve, the conic section such as curve) on, the rear limb of second helical blade 222 with it is described
The rear limb position of helical blade 21 is relative and positioned at same curved line (helical curve, the conic such as including logarithmic spiral curve
Other arc curves such as line) on.
Wherein, any one helical blade 21 on ground floor axle stream runner 201 can also correspond to second layer axle stream runner 202
On 3 helical blades, 22,4 helical blades etc. number, but in helical blade 22 on second layer axle stream runner 202,
First helical blade 221 and the second helical blade 222 of same curved line must be included being located at the limb of helical blade 21.When
Any one helical blade 21 on ground floor axle stream runner 201 can also correspond to 3 helical-blades on second layer axle stream runner 202
During piece 22, remove the Part III helical blade outside the first helical blade 221 and the second helical blade 222 can be located at it is adjacent
The relative place in position between helical blade 21.When any one helical blade 21 on ground floor axle stream runner 201 can also be right
When answering 4 helical blades 22 on second layer axle stream runner 202, remove outside the first helical blade 221 and the second helical blade 222
Part III helical blade can respectively be located between adjacent the first helical blade 221 and the second helical blade 222.
With continued reference to Fig. 1 to Fig. 5, dual channel axle stream wind is focused on impeller 100 and is outwards set with a determining deviation successively from axle center
The lateral wall for having the first blade wall 11, the second blade wall 12 and the third blade wall 13 of annular, the first blade wall 11 is constituted
The Nei Liubi of the annular of ground floor axle stream runner 201, the madial wall of the second blade wall 12 constitutes the ring of ground floor axle stream runner 201
The outflow wall of shape, helical blade 21 be formed at the interior stream wall of the ground floor axle stream runner 201 and outflow wall between, and respectively with
The first blade wall 11 (Nei Liubi), the second blade wall 12 (outflow wall) are connected.The lateral wall of the second blade wall 12 constitutes the
Two layers of Nei Liubi of the annular of axle stream runner 202, the madial wall of third blade wall 13 constitutes the outer of the annular of second layer axle stream runner 202
Stream wall, helical blade 22 be formed at the interior stream wall of second layer axle stream runner 202 and outflow wall between, and respectively with second leaf
Piece wall 12 (Nei Liubi), third blade wall 13 (outflow wall) are connected.
Wherein, blade root of each helical blade 21,22 on the first blade wall 11, the lateral wall of the second blade wall 12
The axially arranged of impeller 100 is focused on along the dual channel axle stream wind, the preceding limb is formed with the side of the air inlet 101,
The rear limb is formed in the side of the air outlet 102, the preceding limb and rear limb of each helical blade 21,22 are vertical
Arc is in the projection in the plane in the axle center and with certain distance.
Wherein, the helical blade 21,22 is logarithmic spiral blade so that flowing of the air on blade is smooth, wind-force
It is big and steady.More preferably, the helical blade 21,22 is three rank logarithmic spiral blades.
Referring to figs. 1 to Fig. 5, in the present embodiment, the outflow wall and second layer axle stream runner 202 of ground floor axle stream runner 201
Interior stream wall share it is same annular division wall：Second blade wall 12, and respectively positioned inside and outside the two of the second blade wall 12
Side.
In the present embodiment, the preceding limb of the preceding limb of first helical blade 221 and the corresponding helical blade 21
It is connected and is formed a continuous curved line, the rear limb of second helical blade 222 and the corresponding helical blade 21
Limb is connected and forms a continuous curved line afterwards.More specifically, the preceding limb of first helical blade 221 and corresponding institute
The preceding limb position for stating helical blade 32 is relative and on same logarithmic spiral curve, after second helical blade 222
Limb is relative with the rear limb position of the corresponding helical blade 21 and is formed on same logarithmic spiral curve.
Referring to figs. 1 to Fig. 4, some described helical blade 21 in the ground floor axle stream runner 201 is perpendicular to described
Projection head and the tail on axle center are overlapped.Some described helical blade 22 in the second layer axle stream runner 202 is perpendicular to described
Projection head and the tail on axle center are overlapped.
Preferably, the rear limb of first helical blade 221 is located at the correspondence preceding limb of helical blade 21 and rear limb is thrown
The centre of shadow, the preceding limb of the second helical blade 222 is located at the centre of the correspondence preceding limb of helical blade 21 and the projection of rear limb.
Preferably, the middle concave of the air outlet 102 is in surrounding, so as to form the outlet air surface indent of the air outlet 102
So that wind-force is in air outlet, focused on to centre so that dual channel axle stream wind focuses on wind-force at the axle center of impeller 100 and greatly, radiates
Effect is good.
Wherein, first axle stream runner 201 is identical with the wind direction of the second axle stream runner 202.
The number of axle stream runner of the invention is not limited in two-layer, three layers, four layers etc. numbers is can also be, with reference to figure
6 to Fig. 9, is situation when axle stream runner is three layers.
With reference to Fig. 6 to Fig. 9, impeller 100a is focused on the invention discloses a kind of three runners axle stream wind, including around described three
Runner axle stream wind focuses on the ground floor axle stream runner 201 that the axle center of impeller 100a sets gradually, second layer axle stream runner 202 and the
The concrete structure of three axle stream runners 203, ground floor axle stream runner 201 and second layer axle stream runner 202 as it appears from the above, refuse herein
To describe in detail.Second layer axle stream runner 202 is provided with 2N helical blade 22, and third layer axle stream runner 203 is provided with 4N spiral
Blade 23, the helical blade on third layer axle stream runner 203 is 2 times of second layer axle stream runner 202, and the helical blade 23 is wrapped
Include positioned at the preceding limb of the side of air inlet 101 of three runners axle stream wind focusing impeller 100a and positioned at the three runners axle stream
Wind focuses on the rear limb of the side of air outlet 102 of impeller 100a, and any one helical blade 22 on second layer axle stream runner 202
2 helical blades 23 on correspondence third layer axle stream runner 203, with second layer axle stream runner 202 on third layer axle stream runner 203
Corresponding helical blade 23 is respectively the first helical blade 231 and the second helical blade 232, the He of the first helical blade 231
Second helical blade 232 is interspersed successively, and the preceding limb of first helical blade 231 and the corresponding helical blade
22 preceding limb position it is relative and positioned at same curved line (including logarithmic spiral curve etc. helical curve, conic section etc. other
Arc curve) on, the rear limb of second helical blade 232 is relative with the rear limb position of the helical blade 22 and is located at
On same curved line (other arc curves such as helical curve, conic section such as including logarithmic spiral curve).
Wherein, any one helical blade 22 on second layer axle stream runner 202 can also correspond to third layer axle stream runner 203
On 3 helical blades, 4 helical blades etc. number, but in helical blade 23 on third layer axle stream runner 203, must
First helical blade 231 and the second helical blade 232 of same curved line must be included being located at the limb of helical blade 22.When
Any one helical blade 22 on two layers of axle stream runner 202 can also correspond to 3 helical blades on third layer axle stream runner 203
When 23, the Part III helical blade removed outside the first helical blade 231 and the second helical blade 232 can be located at and adjacent spiral shell
The relative place in position between vane piece 23.When any one the corresponding third layer of helical blade 22 on second layer axle stream runner 202
During 4 helical blades 23 on axle stream runner 203, the 3rd outside the first helical blade 231 and the second helical blade 232 is removed
Dividing helical blade can be located between adjacent the first helical blade 231 and the second helical blade 232 respectively.
With continued reference to Fig. 6 to Fig. 9, three runner axle stream wind are focused in impeller 100a, and third blade wall 13 is outer with a determining deviation
Also bad to be wound with quaterfoil wall 14, the madial wall of third blade wall 13 constitutes the outflow wall of the annular of second layer axle stream runner 202, the
The lateral wall of three blade walls 13 constitutes the Nei Liubi of the annular of third layer axle stream runner 203, and the madial wall of quaterfoil wall 14 is constituted
The Nei Liubi of the annular of third layer axle stream runner 203, helical blade 23 is formed at interior stream wall and the outflow of third layer axle stream runner 203
Between wall, and it is connected with the third blade wall 13 (Nei Liubi), quaterfoil wall 14 (outflow wall) respectively.
Wherein, blade root of each helical blade 22,22 on the second blade wall 12, the lateral wall of third blade wall 13
The axially arranged of impeller 100a is focused on along the three runners axle stream wind, the preceding limb is formed with the side of the air inlet 101,
Form the rear limb in the side of the air outlet 102, the preceding limb and rear limb of each helical blade 23 perpendicular to
Projection in the plane in the axle center is arc and with certain distance.
Wherein, the helical blade 23 is logarithmic spiral blade so that flowing of the air on blade is smooth, wind-force it is big and
Steadily.More preferably, the helical blade 23 is three rank logarithmic spiral blades.
With reference to Fig. 6 to Fig. 9, in the present embodiment, the outflow wall and third layer axle stream runner 203 of second layer axle stream runner 202
Interior stream wall share it is same annular division wall：Third blade wall 13, and respectively positioned inside and outside the two of the third blade wall 13
Side.
In the present embodiment, the preceding limb of the preceding limb of first helical blade 231 and the corresponding helical blade 22
It is connected and is formed a continuous curved line, the rear limb of second helical blade 232 and the corresponding helical blade 22
Limb is connected and forms a continuous curved line afterwards.More specifically, the preceding limb of first helical blade 231 and corresponding institute
The preceding limb position for stating helical blade 22 is relative and on same logarithmic spiral curve, after second helical blade 232
Limb is relative with the rear limb position of the corresponding helical blade 22 and is formed on same logarithmic spiral curve.
With reference to Fig. 6 to Fig. 9, some described helical blade 22 in the second layer axle stream runner 202 is perpendicular to described
Projection head and the tail on axle center are overlapped.Some described helical blade 23 in the third layer axle stream runner 203 is perpendicular to described
Projection head and the tail on axle center are overlapped.
Preferably, the rear limb of first helical blade 231 is located at the correspondence preceding limb of helical blade 22 and rear limb is thrown
The centre of shadow, the preceding limb of the second helical blade 232 is located at the centre of the correspondence preceding limb of helical blade 22 and the projection of rear limb.
Preferably, the middle concave of the air outlet 102 is in surrounding, so as to form the outlet air surface indent of the air outlet 102
So that wind-force is in air outlet, focused on to centre so that three runner axle stream wind focus on wind-force at the axle center of impeller 100a and greatly, radiate
Effect is good.
Wherein, the second axle stream runner 202 is identical with the wind direction of the 3rd axle stream runner 203.
Above disclosed is only the preferred embodiments of the present invention, can not limit the right of the present invention with this certainly
Scope, therefore the equivalent variations made according to scope of the present invention patent, still belong to the scope that the present invention is covered.
Claims (10)
1. a kind of multiple flow passages axle stream wind focuses on impeller, it is characterised in that：Including focusing on impeller around the multiple flow passages axle stream wind
At least two-layer axle stream runner that axle center sets gradually, later layer axle stream runner is around preceding layer axle stream runner, each axle stream runner
On be respectively equipped with several helical blades, the helical blade on later layer axle stream runner is N times of preceding layer axle stream runner, and N is
Integer more than or equal to 2, each helical blade includes being focused on positioned at the multiple flow passages axle stream wind air inlet side of impeller
Preceding limb and focused on positioned at the multiple flow passages axle stream wind impeller air outlet side rear limb, and axle stream stream described in preceding layer
2 helical blades on any one helical blade correspondence later layer axle stream runner on road, on later layer axle stream runner with it is previous
The layer corresponding helical blade of axle stream runner is respectively the first helical blade and the second helical blade, first helical blade and the
Two helical blades are interspersed successively, and the preceding limb of first helical blade is corresponding with preceding layer axle stream runner described
The preceding limb position of helical blade is relative and is located on same curved line, rear limb and the preceding layer axle of second helical blade
The rear limb position of the corresponding helical blade is relative in stream runner and is located on same curved line.
2. multiple flow passages axle stream wind as claimed in claim 1 focuses on impeller, it is characterised in that：Axle stream runner bag described at least two
The the second annular axle stream runner for including the first axle stream runner of annular and being surrounded on outside the first axle stream runner, the first axle
Be provided with M helical blade in stream runner, be provided with 2M helical blade in the second axle stream runner, the individual helical blades of 2M around
The axle center is located at the interior stream wall surrounding of the second axle stream runner with a determining deviation, and M is more than or equal to 3, M in first axle stream runner
The preceding limb of the individual helical blade with the preceding limb position of the spaced helical blades of M in the second axle stream runner
It is relative and be located on same curved line, in first axle stream runner the rear limb of the individual helical blades of M with the second axle stream runner
The interior other M rear limb position of the spaced helical blade is relative and is located on same curved line.
3. multiple flow passages axle stream wind as claimed in claim 2 focuses on impeller, it is characterised in that：Axle stream runner described at least two is also
Including the 3rd annular axle stream runner being surrounded on outside the second axle stream runner, 4N the is provided with the 3rd axle stream runner
Three helical blades, the preceding limb of the 2M helical blade sets with 2M interval in the 3rd axle stream runner in the second axle stream runner
The position of the helical blade put is relative and is located on same curved line, the individual helical blades of 2M in the second axle stream runner
Limb is relative with the rear limb position of other 2M in the 3rd axle stream runner spaced helical blade afterwards and is located at
On same curved line.
4. multiple flow passages axle stream wind as claimed in claim 1 focuses on impeller, it is characterised in that：Each axle stream runner closes on institute
The one end for stating axle center is provided with the Nei Liubi of annular, and the one end away from the axle center is provided with the outflow wall of annular, in the axle stream runner
Helical blade be formed at it is described it is interior stream wall and outflow wall between, and respectively with it is described it is interior stream wall and outflow wall be connected.
5. multiple flow passages axle stream wind as claimed in claim 4 focuses on impeller, it is characterised in that：Outside axle stream runner described in preceding layer
The interior stream wall of stream wall and axle stream runner described in later layer shares the division wall of same annular, and respectively positioned at the interior of the division wall
Outer both sides.
6. the multiple flow passages axle stream wind as described in claim 1 or 4 focuses on impeller, it is characterised in that：It is described in latter axle stream runner
The preceding limb of the first helical blade is connected with the preceding limb of the corresponding helical blade in preceding layer axle stream runner and forms one
Continuous curved line, the rear limb of second helical blade with after the corresponding helical blade in preceding layer axle stream runner
Limb is connected and forms a continuous curved line.
7. multiple flow passages axle stream wind as claimed in claim 1 focuses on impeller, it is characterised in that：In latter axle stream runner, described
The preceding limb of one helical blade is relative with the preceding limb position of the corresponding helical blade in preceding layer axle stream runner and is located at
On same logarithmic spiral curve, rear limb and the corresponding helical-blade in preceding layer axle stream runner of second helical blade
The rear limb position of piece is relative and is formed on same logarithmic spiral curve.
8. multiple flow passages axle stream wind as claimed in claim 1 focuses on impeller, it is characterised in that：Some institutes in the axle stream runner
Helical blade is stated to be overlapped in the projection head and the tail on the axle center.
9. multiple flow passages axle stream wind as claimed in claim 1 focuses on impeller, it is characterised in that：In axle stream runner described in later layer
Helical blade quantity is 2 times of the helical blade in axle stream runner described in preceding layer, the helical-blade in later layer axle stream runner
One limb of piece is located on same curved line with the limb of the corresponding helical blade in preceding layer axle stream runner, later layer axle stream
Another limb of the helical blade is located at the two limbs projection of the correspondence helical blade in preceding layer axle stream runner in runner
Centre.
10. multiple flow passages axle stream wind as claimed in claim 1 focuses on impeller, it is characterised in that：The helical blade is in its axle stream
Blade root in runner on stream wall focuses on the axially arranged of impeller along the multiple flow passages axle stream wind, is formed with the air inlet side
The preceding limb, the rear limb is formed in the air outlet side, and the preceding limb and rear limb of each helical blade exist
Projection in the plane in the axle center is arc and with certain distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237715.4A CN106762823A (en) | 2016-12-28 | 2016-12-28 | Multiple flow passages axle stream wind focuses on impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237715.4A CN106762823A (en) | 2016-12-28 | 2016-12-28 | Multiple flow passages axle stream wind focuses on impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106762823A true CN106762823A (en) | 2017-05-31 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611237715.4A Pending CN106762823A (en) | 2016-12-28 | 2016-12-28 | Multiple flow passages axle stream wind focuses on impeller |
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| CN (1) | CN106762823A (en) |
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| CN110374898A (en) * | 2019-07-29 | 2019-10-25 | 联想(北京)有限公司 | Fan body and electronic equipment |
| CN112955698A (en) * | 2018-08-24 | 2021-06-11 | 三星电子株式会社 | Air conditioner and household appliance |
| CN113028502A (en) * | 2021-03-26 | 2021-06-25 | Tcl空调器(中山)有限公司 | Fan and ventilation equipment |
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