CN207906118U - A kind of double sweepforward propeller fans of S-shaped - Google Patents
A kind of double sweepforward propeller fans of S-shaped Download PDFInfo
- Publication number
- CN207906118U CN207906118U CN201820110633.1U CN201820110633U CN207906118U CN 207906118 U CN207906118 U CN 207906118U CN 201820110633 U CN201820110633 U CN 201820110633U CN 207906118 U CN207906118 U CN 207906118U
- Authority
- CN
- China
- Prior art keywords
- sweepforward
- blade
- shaped
- double
- air duct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007769 metal material Substances 0.000 claims description 3
- 230000002706 hydrostatic effect Effects 0.000 abstract description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a kind of double sweepforward propeller fans of S-shaped, is made of air duct (1), impeller, supporting rack (3), motor (4), motor (4) is fixedly connected on impeller in air duct (1)；The quantity of support frame as described above (3) is two, is located above and below motor (4), and one end is welded or is bolted with motor (4), and the other end is welded or is bolted with air duct (1)；The impeller includes blade (2) and wheel hub, the leading edge of the blade (2) is S-shaped, form sweepforward region A (5) and sweepforward region B (6), there are one flange installing handle, blade (2) quantity at least two for blade (2) root；The wheel hub is that two halves formula carries structure of mounting hole；The blade (2) is bolted to connection with wheel hub.The utility model can reduce the unstable air-flow of blade surface, reduce noise；Supporting rack plays guide functions, reduces hydrostatic pressures losses when flow rotation, improves fan performance.
Description
Technical field
The utility model is related to propeller fan technical field, the double sweepforward propeller fans of specifically a kind of S-shaped.
Background technology
Axial Fan Blades form is generally linear type, sweepforward, sweepback, and sweepforward or sweepback, which have, to improve performance, reduces
Because being influenced by geometric dimension, when structure design, considers distribution of force for function of noise, sweepforward or backward-swept blade, sweepforward or sweepback
Amplitude is restricted.Motor support frame is generally pylindrical or template, obstruction air-flow flowing reduce fan static pressure, make wind turbine
It can reduce.
Utility model content
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, provide it is a kind of have structure novel, resistance it is small,
Improve the double sweepforward propeller fans of S-shaped of fan performance.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of double sweepforward propeller fans of S-shaped, by air duct, impeller, supporting rack, motor form, the motor is solid with impeller
Surely it is connected in air duct；The quantity of support frame as described above is two, is located above and below motor, one end and electric welding
It connects or is bolted, the other end is welded or is bolted with air duct；The impeller includes blade and wheel hub, the leading edge of the blade
For S-shaped, sweepforward region A and sweepforward region B is formed, there are one flange installing handle, the blade quantities to be at least two for root of blade
It is a；The wheel hub is that two halves formula carries structure of mounting hole；The blade is bolted to connection with wheel hub.
Preferably, support frame as described above is guide-vane, and section is arc-shaped, and inlet angle α may be designed as 15 ° -35 °, go out
Bicker β is 90 °.
Preferably, the blade section is bending airfoil, relative thickness 4%-10%.
Furtherly, the blade is metal material materials and parts.
Preferably, the sweepforward region A leading edge triangular shapes, sweepforward region B are the protruding parts of S-shaped rounding off,
In outer arcuate.
Preferably, the air duct is collective wind type air duct.
The utility model can reduce the unstable air-flow of blade surface, reduce noise；Supporting rack plays guide functions, subtracts
Hydrostatic pressures losses when few flow rotation improve fan performance.
Description of the drawings
A part of attached drawing for constituting the utility model is used to provide a further understanding of the present invention.In the accompanying drawings：
Fig. 1 is the internal structure schematic diagram of the double sweepforward propeller fans of the utility model S-shaped.
Fig. 2 is the positive structure schematic of the double sweepforward propeller fans of the utility model S-shaped.
Fig. 3 is the angle schematic diagram of the supporting rack section of the double sweepforward propeller fans of the utility model S-shaped.
In figure：1, air duct；2, blade；3, supporting rack；4, motor；5, sweepforward region A；6, sweepforward region B.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1, 2, the double sweepforward propeller fans of a kind of S-shaped, are made of, wind air duct 1, impeller, supporting rack 3, motor 4
Cylinder 1 is collective wind type air duct.The motor 4 is fixedly connected on impeller in air duct 1；The quantity of support frame as described above 3 is two, respectively
Above and below motor 4, one end is welded or is bolted with motor 4, and the other end is welded with air duct 1 or bolt connects
It connects；The impeller includes blade 2 and wheel hub, and the leading edge of the blade 2 is S-shaped, forms sweepforward region A5 and sweepforward region B6, institute
Sweepforward region A5 leading edge triangular shapes are stated, sweepforward region B6 is the protruding parts of S-shaped rounding off, is in outer arcuate.2, blade
There are one flange installing handle, 2 quantity at least two of the blade in portion；The wheel hub is that two halves formula carries structure of mounting hole；Institute
Blade 2 is stated to be bolted to connection with wheel hub.
Support frame as described above 3 is guide-vane, and section is arc-shaped, as shown in figure 3, its inlet angle α can according to blade angle
It is designed as 15 ° -35 °, angle of outlet β is 90 °, and not only there is fixed support motor 4 to play guide functions again, when reduction flow rotation
Hydrostatic pressures losses improve fan performance.
2 section of the blade is bending airfoil, and relative thickness 4%-10% can reduce the unstable of 2 surface of blade
Air-flow reduces noise.Blade 2 is metal material materials and parts.Sweepforward region A5 and sweepforward region B6 forms double sweepforward structures, plays guiding
Air-flow, the effect for improving aeroperformance, reducing noise.
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art is come
Say, still can with technical scheme described in the above embodiments is modified, or to which part technical characteristic into
Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all
It is included within the scope of protection of this utility model.
Claims (6)
1. a kind of double sweepforward propeller fans of S-shaped, are made of, the motor air duct (1), impeller, supporting rack (3), motor (4)
(4) it is fixedly connected on impeller in air duct (1)；The quantity of support frame as described above (3) is two, is located at the top of motor (4)
And lower section, one end are welded or are bolted with motor (4), the other end is welded or is bolted with air duct (1)；The impeller packet
Blade (2) and wheel hub are included, the leading edge of the blade (2) is S-shaped, forms sweepforward region A (5) and sweepforward region B (6), blade (2)
There are one flange installing handle, blade (2) quantity at least two for root；The wheel hub is that two halves formula carries mounting hole knot
Structure；The blade (2) is bolted to connection with wheel hub.
2. a kind of double sweepforward propeller fans of S-shaped according to claim 1, it is characterised in that：Support frame as described above (3) is to lead
Leaf formula, section are arc-shaped, and inlet angle α is designed as 15 ° -35 °, and angle of outlet β is 90 °.
3. a kind of double sweepforward propeller fans of S-shaped according to claim 1, it is characterised in that：Blade (2) section is
It is bent airfoil, relative thickness 4%-10%.
4. a kind of double sweepforward propeller fans of S-shaped according to claim 3, it is characterised in that：The blade (2) is metal
Material pieces.
5. a kind of double sweepforward propeller fans of S-shaped according to claim 1, it is characterised in that：The sweepforward region A (5)
Leading edge triangular shape, sweepforward region B (6) are the protruding parts of S-shaped rounding off, are in outer arcuate.
6. a kind of double sweepforward propeller fans of S-shaped according to claim 1, it is characterised in that：The air duct (1) is collection wind
Formula air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820110633.1U CN207906118U (en) | 2018-01-23 | 2018-01-23 | A kind of double sweepforward propeller fans of S-shaped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820110633.1U CN207906118U (en) | 2018-01-23 | 2018-01-23 | A kind of double sweepforward propeller fans of S-shaped |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207906118U true CN207906118U (en) | 2018-09-25 |
Family
ID=63564522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820110633.1U Expired - Fee Related CN207906118U (en) | 2018-01-23 | 2018-01-23 | A kind of double sweepforward propeller fans of S-shaped |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207906118U (en) |
-
2018
- 2018-01-23 CN CN201820110633.1U patent/CN207906118U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112253538B (en) | Axial flow wind wheel structure and axial flow fan | |
| CN205173055U (en) | Low noise that trailing edge is buckled does not have spiral case fan wheel | |
| CN104791301B (en) | One kind is curved to plunder aluminium alloy axial blade | |
| CN214465105U (en) | High-efficiency low-noise centrifugal fan | |
| CN113266592A (en) | Blade, impeller and fan | |
| CN203584898U (en) | Low-noise high-efficiency central air conditioner outdoor machine cooling axial-flow fan | |
| CN207906118U (en) | A kind of double sweepforward propeller fans of S-shaped | |
| CN210484188U (en) | Forward-bending forward-sweeping offset-mounted blade, impeller and axial flow fan with forward-bending forward-sweeping offset-mounted blade | |
| CN219622932U (en) | Axial flow wind wheel and axial flow fan with local secondary warping of outer edge | |
| CN208348150U (en) | A kind of small-sized multi-wing centrifugal exhaust fan of highly effective low noise and impeller | |
| CN103032376B (en) | Axial flow fan blade | |
| CN207814037U (en) | A kind of centrifugal blower fan blade wheel with mid-game reinforcement structure | |
| CN112303010B (en) | High-efficiency low-noise centrifugal fan | |
| CN207879687U (en) | A kind of centrifugal blower fan blade wheel with wheel cap reinforcement structure | |
| CN200949556Y (en) | Low noise cooling fan blade | |
| CN210686426U (en) | Axial flow wind wheel and air conditioner with same | |
| CN210068521U (en) | Axial fan structure of high-efficient low noise | |
| CN210484191U (en) | Axial flow fan blade structure capable of reducing blade tip vortex noise | |
| CN107023513A (en) | Axial-flow windwheel and air conditioner | |
| CN106837867A (en) | Axial flow blower 3 d impeller with leaf vein texture and splitterr vanes | |
| CN208900419U (en) | A kind of dust emission denoising draught fan | |
| CN202251089U (en) | Axial flow fan blade | |
| CN201412393Y (en) | Blade, fan impeller and air conditioner | |
| CN208778335U (en) | A kind of wind wheel and its blower of application | |
| CN220435094U (en) | Low noise fan blade |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180925 |