CN104251230B - Receded disk impeller and include the suction and blowing device of this receded disk impeller - Google Patents
Receded disk impeller and include the suction and blowing device of this receded disk impeller Download PDFInfo
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- CN104251230B CN104251230B CN201310268394.4A CN201310268394A CN104251230B CN 104251230 B CN104251230 B CN 104251230B CN 201310268394 A CN201310268394 A CN 201310268394A CN 104251230 B CN104251230 B CN 104251230B
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- linear leaf
- short blade
- blade
- receded disk
- impeller
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Abstract
The present invention relates to a kind of receded disk impeller, including: wheel disc；Wheel hub；Multiple blades, it is located on a side of wheel disc and is positioned at the annular region surrounded by described wheel hub and wheel disc periphery, and blade includes windward side and the lee face contrary with windward side；The plurality of blade is divided into several vane group, each vane group includes a linear leaf and the short blade of fixed number, described linear leaf is extended by the Inside To Outside of annular region, described short blade extends by inside the lateral of annular region near the lee face of linear leaf, and described short blade is shorter than linear leaf.Combined blade have impact on the dynamic expanding of the eddy current being formed at linear leaf gap, short blade is particularly set near the lee face of linear leaf, control the yardstick of eddy current in time, thus decrease by fundamental frequency acoustic pressure produced by large scale eddy current, reduce the whistle cry caused by fundamental frequency acoustic pressure so that it is become the sound that human ear is easier to accept.
Description
Technical field
The present invention relates to a kind of receded disk impeller.
The invention still further relates to include the suction and blowing device of this receded disk impeller.
Background technology
Existing suction and blowing device (includes suction and blowing device and blower), mainly includes air inlet, air outlet, spiral case, is located at
Impeller in spiral case, the motor rotated for impeller, and pressure-vaccum adnexa.In general, the impeller in blowing device is all
Belonging to receded disk impeller, receded disk impeller mainly includes wheel disc, is located at the wheel hub of wheel disk center, and is located at wheel hub and wheel web
More blades in the annular region that edge is surrounded, wherein, shape and the arrangement mode thereof of blade determine to a certain extent
The air output of receded disk impeller, air-out efficiency and noise quality.
At present, although the blade of various impeller is ever-changing bending towards, in curvature, but on same wheel face, mostly
Number each blade shape of impeller, chord length are consistent.Prior art exists a kind of wind being applicable on computer CPU fin and installing
Fan leaf, the blade of this fan is multiple vanes, and i.e. at least provided with a short blade in the interval of each linear leaf, utilization sets
Put the short blade at linear leaf periphery synchronous rotary, improve the whole air intake surface of fan, reduce in blade high-speed rotation with
Air agitates the noise that contact is formed.The blade of this combined type is that the noise reduction schemes of receded disk impeller provides good borrowing
Mirror so that those skilled in the art have and are intended to receded disk impeller, are especially adapted for use on the receded disk impeller of suction and blowing device and make
Improve, to reduce the noise produced when impeller runs, improve user's operating experience for suction and blowing device.
Summary of the invention
The technical problem that the invention solves the problems that is to provide a kind of receded disk impeller so that this receded disk impeller is running
Time noise relatively low, the operating experience of user is relatively comfortable.
Technical scheme is as follows:
A kind of receded disk impeller, including: wheel disc；Wheel hub, it is positioned at the middle part of a side of wheel disc, has central shaft
Line, described receded disk impeller rotates around described central axis；Multiple blades, it is located on described side and is positioned at and is taken turns by described
In the annular region that hub and wheel disc periphery surround, blade includes windward side and the lee face contrary with windward side；The plurality of leaf
Sheet is divided into several vane group, each vane group to include a linear leaf and the short blade of fixed number, and described linear leaf is by ring
The Inside To Outside in shape region extends, and described short blade prolongs by inside the lateral of annular region near the lee face of linear leaf
Stretching, described short blade is shorter than linear leaf.
This programme implement after have the beneficial effect that described combined blade has been broken and dominated impeller by linear leaf completely in the past
The normal mode of wheel disc, the most therefore have impact on the dynamic expanding of the eddy current being formed at linear leaf gap, particularly at linear leaf
Lee face near short blade is set, control the yardstick of eddy current in time, thus decrease by produced by large scale eddy current
Fundamental frequency acoustic pressure, reduces the whistle cry caused by fundamental frequency acoustic pressure so that it is become the sound that human ear is easier to accept.
Preferably, in each vane group, short blade is individual less than wheel disc circumferential length and vane group with the circumferential distance of linear leaf
The ratio of the twice of number.
Preferably, linear leaf has linear leaf leading edge and linear leaf trailing edge, and short blade has short blade leading edge and short blade
Trailing edge, bending towards of short blade is consistent with bending towards of linear leaf, and short blade leading edge is consistent with linear leaf leading edge shape, short blade trailing edge
Consistent with linear leaf trailing edge shape, the part between short blade leading edge and trailing edge and the shape phase of the linear leaf corresponding with its position
Corresponding.Short blade bends towards with linear leaf, shape is corresponding, decreases design difficulty, also avoids new leaf normal stream to move simultaneously
Gas cause obstruction.
Preferably, the chord length of short blade is the 25%-50% of linear leaf chord length.Eddy current is typically in the 50% of linear leaf chord length
～Rapid Expansion at 75%, therefore, it is arranged such short blade and the further expansion that can effectively suppress eddy current yardstick is set.
Preferably, several vane group described are distributed evenly on described wheel disc.
Preferably, in each vane group, short blade is identical with the number of linear leaf.
Another technical problem that the invention solves the problems that is to provide a kind of suction and blowing device, makes the ear of this suction and blowing device listen noise
Relatively low, improve the operating experience of user.
The present invention solves the technical scheme of this technical problem: a kind of suction and blowing device, including host shell, and described main case
Body is provided with air inlet and air outlet, is provided with motor and by motor-driven impeller in described host shell, and described impeller makes
Air-flow flows into from air inlet and flows to air outlet；Described impeller is the receded disk impeller that any one is described.
Such scheme provides the benefit that after implementing: above-mentioned compound blade reduces the noise water of receded disk impeller
Flat, use the receded disk impeller with composite blade to use as fan, the noise of suction and blowing device is minimized, thus improves
The operating experience of user.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the suction and blowing device in the preferred embodiment of the present invention.
Fig. 2 is the structural representation of the receded disk impeller in Fig. 1.
Wherein,
1. fan 11. wheel disc 12. wheel hub
2, linear leaf 21. windward side 22. lee face
23. linear leaf leading edge 24. linear leaf trailing edges 3. operate handle
4. air inlet 5. air outlet 6. motor
7. switch 8. host shell 9. short blades
93. short blade leading edge 94. short blade trailing edges
Detailed description of the invention
The present invention has come out with a kind of suction and blowing device, and this suction and blowing device is exchange blower in the present embodiment, certainly,
Suction and blowing device can also be hair-dryer, and the power resources of suction and blowing device can also be gasoline engine or dc-battery bag.
Shown in Figure 1, blower includes the host shell 8 being provided with operation handle 3, and host shell 8 is provided with air inlet 4
With air outlet 5, in host shell 8, it is provided with motor 6 and fan 1.Operation handle 3 is provided with and controls the switch 7 that motor 6 opens and closes.Open
After closing 7 startups, fan 1 high speed rotating produce negative pressure under the driving of motor 6 so that air-flow enters from air inlet 4 rapidly
And flow out from air outlet 5.Air inlet 4 can be connected with corresponding pressure-vaccum adnexa respectively with air outlet 5, as in the present embodiment,
Under cleaned model, air inlet 4 connected sucking pipe of blower, air outlet 5 connects dust bag to collect the fallen leaves that suction pipe sucks simultaneously
And dust；And under blowing pattern, air inlet 4 connects air intake guard shield, air outlet 5 connects blowpipe to guide from air intake guard shield simultaneously
Gap leaked-in air air-flow blow down fallen leaves deadwood.Certainly, pressure-vaccum adnexa is except above-mentioned pressure-vaccum pipe, dust bag and air intake guard shield
Outward, the valve that may also include to inflate or bleed, in order to clear up the U-tube of eaves, in order to the brush head of stain of swiping
Deng adnexa, do not enumerate.In a word, during blower work, air-flow is entered by air inlet 494 all the time and flows from air outlet 5
Going out, user can remove to be chosen as air inlet 4 according to different working conditions and air outlet 5 installs the pressure-vaccum adnexa of various combination.
No matter which kind of pressure-vaccum adnexa air inlet 4 and air outlet 5 connect, and what kind of operation blower performs, the most all
Being to utilize the air-flow caused by fan 1 to be operated, therefore, fan 1 has very important for the performance of blower
Status.In actual applications, fan 1 have impact on the work efficiency of blower, vibration and noise, therefore ability to a great extent
The technical staff in territory seek assiduously always, is devoted to develop the fan 1 of improvement, to farthest promote work efficiency,
Reduce vibration and reduce noise.
In the present invention, fan 1 is receded disk impeller, and receded disk impeller application in blower is of common occurrence, thus
The most do not do too much introduction.
Seeing shown in Fig. 1, Fig. 2, receded disk impeller includes the wheel disc 11 of circle, and the center of wheel disc 11 is provided with wheel hub 12, wheel
Hub 12 includes that installation portion, installation portion have central axis, and wheel disc 11 can be connected in the drive shaft of motor 6 by installation portion, from
And rotate around central axis under the driving of motor 6.Optionally, installation portion is designed to multiple different shape
Formula, such as, have bolt series, key and keyway structure etc., in order to is installed in the drive shaft of motor 6 by wheel disc 11 and therewith
Rotate.Wheel disc 11 has two sides, and first facing to air inlet 4, and second, facing to motor 6, first and second is designed with
Some blades 2, wherein, the blade 2 of second is less, for dispelling the heat to motor 6；And the blade 2 of first is relatively big, it is mainly used in
Increase the air flowing in host shell 8, form negative pressure, thus form the orientation flowed into from air inlet 4 and flow out from air outlet 5
Air-flow.
Certainly, for windstream is relative air inlet 4 and air outlet 5, for blower, air inlet 4 He
Between air outlet 5, air-flow is flowing through the Ye Daoshi of receded disk impeller, and the mode of its flowing, efficiency, air output are even flowing over
The noise produced in journey is only the principal element really affecting duty, and these invariably with shape and the arrangement side of blade 2
Formula is closely related.
Shown in Figure 2, be the preferred embodiment of the present invention, on first of wheel disc 11 by wheel hub 12 and wheel disc 11 outside
Being provided with 4 vane group in the annular region that week is surrounded, 4 vane group are distributed evenly on described first, each blade
Group includes the short blade 9 of a linear leaf 2 and fixed number.Linear leaf 2 is to be extended by the Inside To Outside of annular region, short leaf
Sheet 9 is extended by inside the lateral of annular region.In each vane group, the ratio of the number of short blade 9 and linear leaf 2 is certain,
The most in the present embodiment, the ratio of the number of deviated splitter vane 9 is 1, has a linear leaf 2 and a short leaf in the most each vane group
Sheet 9, certainly, the ratio of short blade 9 and the number of linear leaf 2 can also be 2,3 or other bigger numerical value, meanwhile, vane group
Number is also not necessarily limited to 4 groups, can be 3 groups, it is also possible to is 5,6 groups or more organizes number.
Blade has a height on the direction being perpendicular to 11 first, wheel disc, and blade includes two in the height direction
Face and two edges.It is relative impeller that the two face is respectively windward side 21 and lee face 22, windward side 21 and lee face 22
For direction of rotation, i.e. windward side 21 is consistent towards the direction of rotation with impeller, and lee face 22 towards with impeller
Direction of rotation is contrary.In the present embodiment, impeller direction of rotation as it can be seen, therefore lee face 22 and windward side 21 it is also determined that
As shown in label.
In each vane group, short blade 9 is provided close to lee face 22 side of linear leaf 2, wheel disc 11 lateral take turns
Hub 12 extends.Owing to eddy current is easier to producing near the position of linear leaf 2 lee face 22, therefore at the lee face 22 of linear leaf 2
Short blade 9 is set, it is possible to the suitably dynamic expanding process of controlled vortex flow, prevents the yardstick of eddy current from constantly expanding, thus reduce
By fundamental frequency acoustic pressure produced by large scale eddy current, reduce the whistle cry caused by fundamental frequency acoustic pressure so that it is become human ear and be easier
The sound accepted.In the preferred embodiment, in each vane group, the circumferential distance of short blade 9 and linear leaf 2 is at 1/8 wheel
In dish circumference.In other words, it is assumed that the number of vane group is N (N >=2), short blade 9 and the week of linear leaf 2 in the most each vane group
To distance less than 1/2N wheel disc circumferential length, say, that short blade 9 and the circumferential distance of linear leaf 2 in each vane group
Less than wheel disc circumferential length and the ratio of the twice of vane group number.
Blade two edges in the height direction are blade inlet edge and trailing edge respectively, before the short blade of short blade 9
Edge 93 and be parallel to central axis plane formed angle γ, the linear leaf leading edge 23 of linear leaf 2 be parallel to central axis
Plane forms angle α, and in the preferred embodiment, angle α is equal with the angle of angle γ, i.e. short blade leading edge 93 and linear leaf
Leading edge 23 shape is consistent.The short blade trailing edge 94 of short blade 9 and the plane being parallel to central axis form angle δ, linear leaf 2
Linear leaf trailing edge 24 and the planar shaped β in an angle being parallel to described central axis, in the preferred embodiment, angle β with
The angle of angle δ is equal, i.e. short blade trailing edge 94 is consistent with linear leaf trailing edge 24 shape.
Bending towards of short blade 9 is consistent with bending towards of linear leaf 2, and the part between short blade 9 leading edge 93 and trailing edge 94
With the shape of the linear leaf 2 corresponding with its position is corresponding, i.e. short blade 9 is between short blade leading edge 93 and short blade trailing edge 94
Bend towards with shape respectively with linear leaf 2 corresponding part bend towards and shape is consistent.Which reduce design difficulty, also keep away simultaneously
The gas exempting from new leaf normal stream dynamic causes obstruction.The chord length of short blade 9 is the 25%-50% of linear leaf 2 chord length, eddy current
General Rapid Expansion at the 65%～75% of linear leaf chord length, therefore, is arranged such short blade 9 and can effectively suppress eddy current chi
Degree expands further.
The above-mentioned definition to each element is not limited in various concrete structures or shape, this area mentioned in embodiment
Those of ordinary skill can to its carry out simply know replace.
It may occur to persons skilled in the art that, the present invention can also have other implementation, but as long as it uses
Technical spirit and the present invention same or like seemingly, or any variations and alternatives made based on the present invention are all the present invention's
Within protection domain.
Claims (7)
1. a receded disk impeller, including:
Wheel disc；
Wheel hub, it is positioned at the middle part of a side of wheel disc, has central axis, and described receded disk impeller is around described central shaft
Line rotates；
Multiple blades, it is located on one side and is positioned at the annular region surrounded by described wheel hub and wheel disc periphery,
Blade includes windward side and the lee face contrary with windward side；
It is characterized in that: the plurality of blade is divided into several vane group, each vane group include a linear leaf and fix individual
The short blade of number, described linear leaf is extended by the Inside To Outside of annular region, and described short blade is near the lee face of linear leaf
Being extended by inside the lateral of annular region, described short blade is shorter than linear leaf.
Receded disk impeller the most according to claim 1, it is characterised in that: short blade and the week of linear leaf in each vane group
To distance less than wheel disc circumferential length and the ratio of the twice of vane group number.
Receded disk impeller the most according to claim 1, it is characterised in that: after linear leaf has linear leaf leading edge and linear leaf
Edge, short blade has short blade leading edge and short blade trailing edge, and bending towards of short blade is consistent with bending towards of linear leaf, short blade leading edge
Consistent with linear leaf leading edge shape, short blade trailing edge is consistent with linear leaf trailing edge shape, and short blade is between leading edge and trailing edge
The shape of part and the linear leaf corresponding with its position is corresponding.
Receded disk impeller the most according to claim 1, it is characterised in that: the chord length of short blade is linear leaf chord length
25%-50%.
Receded disk impeller the most according to claim 1, it is characterised in that: several vane group described are distributed evenly in institute
State on wheel disc.
Receded disk impeller the most according to claim 1, it is characterised in that: in each vane group, the number of short blade is 1.
7. a suction and blowing device, including host shell, described host shell is provided with air inlet and air outlet, described host shell
Inside being provided with motor and by motor-driven impeller, described impeller makes air-flow flow into from air inlet and flow to air outlet；Its feature
It is: described impeller is the arbitrary described receded disk impeller of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310268394.4A CN104251230B (en) | 2013-06-28 | 2013-06-28 | Receded disk impeller and include the suction and blowing device of this receded disk impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310268394.4A CN104251230B (en) | 2013-06-28 | 2013-06-28 | Receded disk impeller and include the suction and blowing device of this receded disk impeller |
Publications (2)
| Publication Number | Publication Date |
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| CN104251230A CN104251230A (en) | 2014-12-31 |
| CN104251230B true CN104251230B (en) | 2016-09-14 |
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| CN201310268394.4A Active CN104251230B (en) | 2013-06-28 | 2013-06-28 | Receded disk impeller and include the suction and blowing device of this receded disk impeller |
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| KR102651742B1 (en) * | 2016-10-07 | 2024-03-28 | 에이치엘만도 주식회사 | A heat sink assembly |
| CN106351877B (en) * | 2016-10-11 | 2019-01-25 | 珠海格力电器股份有限公司 | Centrifugation blade, blower fan system and air-conditioning device |
| CN108425882A (en) * | 2018-05-31 | 2018-08-21 | 陈靖 | A kind of electric hair dryer fan blade |
| CN108953222B (en) * | 2018-08-16 | 2021-02-12 | 泛仕达机电股份有限公司 | Centrifugal impeller |
| CN109026830B (en) * | 2018-08-16 | 2021-02-12 | 泛仕达机电股份有限公司 | Centrifugal impeller |
| CN109236737A (en) * | 2018-11-23 | 2019-01-18 | 常州朗奇威电器有限公司 | A kind of centrifugal impeller for motor radiating |
| CN112032103B (en) * | 2019-06-03 | 2022-08-26 | 日本电产株式会社 | Impeller, air supply device and dust collector |
| KR102042387B1 (en) * | 2019-07-29 | 2019-11-07 | 주식회사 아임 | Blower fan with double-blade for hair-drier |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1174159A2 (en) * | 2000-07-19 | 2002-01-23 | MAP Medizintechnik für Arzt und Patient GmbH & Co. KG | Breathing gas feed device |
| CN101598138A (en) * | 2009-07-07 | 2009-12-09 | 西安交通大学 | Secondary splitter blade type centrifugal impeller |
| CN102128174A (en) * | 2011-04-02 | 2011-07-20 | 山东大学 | Spiral-flow type blockage-free energy-efficient centrifugal fan |
| CN102518602A (en) * | 2011-12-29 | 2012-06-27 | 中联重科股份有限公司 | Centrifugal fan impeller and centrifugal fan |
| CN103016400A (en) * | 2012-12-10 | 2013-04-03 | 中联重科股份有限公司 | Centrifugal fan impeller, centrifugal fan and snow blowing vehicle |
| CN103062112A (en) * | 2013-01-10 | 2013-04-24 | 中联重科股份有限公司 | Road cleaning unit and centrifugal fan impeller thereof |
-
2013
- 2013-06-28 CN CN201310268394.4A patent/CN104251230B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1174159A2 (en) * | 2000-07-19 | 2002-01-23 | MAP Medizintechnik für Arzt und Patient GmbH & Co. KG | Breathing gas feed device |
| CN101598138A (en) * | 2009-07-07 | 2009-12-09 | 西安交通大学 | Secondary splitter blade type centrifugal impeller |
| CN102128174A (en) * | 2011-04-02 | 2011-07-20 | 山东大学 | Spiral-flow type blockage-free energy-efficient centrifugal fan |
| CN102518602A (en) * | 2011-12-29 | 2012-06-27 | 中联重科股份有限公司 | Centrifugal fan impeller and centrifugal fan |
| CN103016400A (en) * | 2012-12-10 | 2013-04-03 | 中联重科股份有限公司 | Centrifugal fan impeller, centrifugal fan and snow blowing vehicle |
| CN103062112A (en) * | 2013-01-10 | 2013-04-24 | 中联重科股份有限公司 | Road cleaning unit and centrifugal fan impeller thereof |
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| CN104251230A (en) | 2014-12-31 |
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