CN201636083U - Energy-saving and emission-reducing fan - Google Patents
Energy-saving and emission-reducing fan Download PDFInfo
- Publication number
- CN201636083U CN201636083U CN2010200021359U CN201020002135U CN201636083U CN 201636083 U CN201636083 U CN 201636083U CN 2010200021359 U CN2010200021359 U CN 2010200021359U CN 201020002135 U CN201020002135 U CN 201020002135U CN 201636083 U CN201636083 U CN 201636083U
- Authority
- CN
- China
- Prior art keywords
- blade
- degree
- emission
- saving
- energy
- 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
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to an energy-saving and emission-reducing fan which comprises a supporting plate and a fan blade connected together with the supporting plate, wherein the fan blade comprises a hub and a plurality of curved blades outwards and radially extending along the hub; the fan blade is provided with a datum line passing through a rotation center, and the blades at both sides of the datum line are symmetrically arranged; and the included angles of the central lines of adjacent blades at each side are different. In the utility model, the datum line is preset on the fan blade, the blades are symmetrically arranged at both sides of the datum line, and the included angles of the blades at each side are different, i.e. the blades are distributed with unequal spaces; the structure ensures that the air inputs of all the blades are different and can eliminate vortex flows, so that the flow energy loss is reduced to the minimum, the efficiency of the fan is improved; meanwhile, noise caused by the vortex flows is also reduced, and the service life is prolonged.
Description
Technical field
The utility model relates to a kind of cooling fan, relates in particular to the fan in a kind of automobile cooling system.
Background technique
Multi blade fan sheet of the prior art generally comprises supporting plate and flabellum, described flabellum comprise wheel hub and around the wheel hub around arranging blade, blade is made the shape of relative sense of rotation towards front curve.Air is flowed through blade again to trailing edge along the profile of blade by the leading edge leading edge; When the shaped design of blade unreasonable, the air-flow in the blade press blade profile and declivity dearly, although air-flow has inertia, and, the air-flow of blade outside is spaced, and forms discontinuous mobile.This discontinuous flow causes that speed falls, and because of the formation of resistance lowers efficiency, is easy to damage.Simultaneously, also bring bigger noise.
The model utility content
Technical problem to be solved in the utility model is to overcome the deficiency of above-mentioned prior art, provides a kind of and can solve that kinetic energy rejection is big, the energy-saving and emission-reduction fan of inefficient defective.
A kind of energy-saving and emission-reduction fan that provides according to the utility model, comprise supporting plate and the flabellum that links together with described supporting plate, described flabellum comprises wheel hub and a plurality of curvecd surface type blade that extends radially outward from described wheel hub, has a reference line that passes rotating center on the described flabellum, the described blade that is positioned at described reference line both sides is symmetrical arranged, and the corner dimension difference of the center line of adjacent described blade in every side.
A kind of energy-saving and emission-reduction fan that provides according to the utility model also has following attached technical characteristics:
The quantity of described blade is odd number, and one of them blade is positioned at described reference line place, forms reference vanes, and rest blade is evenly distributed in the both sides of described reference line.
The difference of the center angle of adjacent described blade is that 1 degree is to 5 degree in every side.
Each described blade comprises integrally formed root, main body and end, and the leading edge of described end is formed with the arc protuberance towards sense of rotation.
The 20%-25% of the body width that described arc protuberance is described blade.
The front of described wheel hub is formed with many ribs of projection vertically, and its reverse side is formed with a plurality of projections of projection vertically.
Each described blade comprises integrally formed body, root and end, the body of described blade and part end equidistantly are divided into four sections form five cross sections altogether, from near the cross section of described root to cross section near the end, the string of a musical instrument in each cross section and horizontal angle are respectively: 31.7 degree-33.7 degree, 30.5 degree-32.5 degree, 28.7 degree-30.7 degree, 25.9 degree-27.9 degree, 22.3 degree-24.3 are spent.
Described blade is 7,9 or 11.
The root of adjacent described blade links together by a curvecd surface type joint, described joint by last vane trailing edge backward the leading edge direction of a blade extend to form.
A kind of energy-saving and emission-reduction fan that provides according to the utility model compared with prior art has following advantage: at first, the utility model sets in advance a reference line on flabellum, blade is symmetrical arranged with this reference line, and make the corner dimension difference between the blade of every side, it promptly not equidistant distribution, this kind structure makes the air output difference of each blade, can eliminate the generation of eddy current, make the energy of flow loss reduce to minimum, improved the efficient of fan, also reduce the noise that produces because of eddy current simultaneously, improved working life; Make that the air output of fan both sides is identical and be symmetrical arranged, make it have balance quality equally; Secondly, the utility model is provided with the arc protuberance in the end of blade, and what make blade can not interfere longshore current line airflow flowing, further eliminates the generation of eddy current, has reduced noise, has improved the efficient of fan; Once more, the rib that the utility model is provided with in the front of wheel hub not only plays the effect of air inducing, and when two fans are stacked together, the reverse side projection meeting jacking block of a last fan is on the rib of next fan, thereby with two fan bed hedgehoppings, the blade of feasible two flabellums that are superimposed together can not bump and displacement, is beneficial to the transportation of fan.
Description of drawings
Fig. 1 is a plan view of the present utility model.
Fig. 2 is a plan view of the present utility model.
Fig. 3 is a rear view of the present utility model.
Fig. 4 is a right elevation of the present utility model.
Fig. 5 is an isometric front view of the present utility model.
Fig. 6 is a reverse side stereogram of the present utility model.
Fig. 7 is the A-A sectional view among Fig. 1.
Fig. 8 is the B-B sectional view among Fig. 1.
Fig. 9 is the C-C sectional view among Fig. 1.
Figure 10 is the D-D sectional view among Fig. 1.
Figure 11 is the E-E sectional view among Fig. 1.
Embodiment
Referring to Fig. 1 to Fig. 4, in the embodiment of a kind of energy-saving and emission-reduction fan that the utility model provides, comprise supporting plate 1 and the flabellum that links together with described supporting plate 1, described flabellum comprises wheel hub 2 and a plurality of curvecd surface type blade 3 that extends radially outward from described wheel hub 2, has a reference line 4 that passes rotating center on the described flabellum, the described blade 3 that is positioned at described reference line 4 both sides is symmetrical arranged, and the corner dimension difference of the center line of adjacent described blade 3 in every side.The quantity of described blade is odd number, and one of them blade is positioned at described reference line place, forms reference vanes, and rest blade is evenly distributed in the both sides of described reference line.
Supporting plate 1 in the utility model is generally made by metallic material, is used for being connected with driving mechanism, so also is provided with a plurality of fixed holes that are used to install above the supporting plate 1.Described wheel hub 2 and described blade 3 are integrally formed, during fabrication, generally supporting plate 1 are injection-moulded in wheel hub 2.
Being symmetrical arranged in the utility model is meant the blade mirror image setting of reference line both sides, and the corner dimension difference is meant that blade 3 is not a spaced set, but differs certain angle each other.For above-mentioned qualification of the present utility model can better be described, present embodiment adopts the fan of 7 blades to be illustrated.
Referring to Fig. 3, the blade of present embodiment is 7, and wherein first blade is arranged on the reference line place, thereby this blade is defined as reference vanes.In the both sides of described reference line 3 blades are set respectively, the angle of the center line of both sides adjacent blades is respectively A, B, C and A ', B ', C ', the angle number of degrees difference of A, B, C wherein, and the angle number of degrees of A ', B ', C ' are also different.And A=A '; B=B '; C=C '.Particularly, the angle of included angle A and A ' is 53 degree, and the angle of B and B ' is 50 degree, and the angle of C and C ' is 49 degree.
Referring to Fig. 3, in the foregoing description that the utility model provides, the difference of the center angle of adjacent described blade is that 1 degree is to 5 degree in every side.Be the difference between A and the B, the difference between B and the C, in the present embodiment, this difference is respectively 3 degree and 1 degree.Difference is arranged on above-mentioned scope, can well solves the equilibrium problem of blade.
Referring to Fig. 1 and Fig. 3, in the foregoing description that the utility model provides, each described blade 3 comprises integrally formed root 31, main body 32 and end 33, and the leading edge 34 of described end 33 is formed with arc protuberance 35 towards sense of rotation.The 20%-25% of body 32 width that described arc protuberance 35 is described blade 3.Present embodiment is 22%.Blade shape design of the present utility model can not interfered longshore current line airflow flowing, got rid of the generation of observable vortex in the turbulent flow, and make the energy of flow loss reduce to minimum, thereby improved the efficient of fan, the minimizing of eddy current has simultaneously also reduced the generation of the noise that causes because of the high frequency band air-flow, has improved the life-span of using.
Referring to Fig. 1 and Fig. 3, in the foregoing description that the utility model provides, the front of described wheel hub 2 is formed with many ribs 21 of projection vertically, and its reverse side is formed with a plurality of projections 22 of projection vertically.Described rib 21 is arranged along the rotation wind direction, has played the effect of air inducing.When transportation, because the aspect ratio of wheel hub 2 is less, each blade intersects.The easy damaged blade of vibration in the transportation process.After the utility model was superimposed together fan, rib 21 cooperatively interacted with projection 22, makes superimposed flabellum can not interfere.
Referring to Fig. 1 and Fig. 7 to Figure 11, in the foregoing description that the utility model provides, each described blade 3 comprises integrally formed body 32, root 31 and end 33, the body 31 of described blade 3 and part end 33 equidistantly are divided into four sections form five cross sections altogether, from near the cross section of described root to cross section near the end, the string of a musical instrument in each cross section and horizontal angle are respectively: 31.7 degree-33.7 degree, 30.5 degree-32.5 degree, 28.7 degree-30.7 degree, 25.9 degree-27.9 degree, 22.3 degree-24.3 are spent.This part end is meant that last sectional position is positioned at the top near blade, i.e. the camber line place of close blade tip.These five cross sections choose the global shape that can determine blade 3 basically.The E-E hatching in the present embodiment, promptly from the A-A hatching, is arrived in five sectional positions at this place shown in the hatching among Fig. 1.Referring to Fig. 7 to Figure 11, it is 32.5 degree that the string of a musical instrument of each position and horizontal angle are respectively a, and b is 31.5 degree, and c is 29.5 degree, and d is 26.5 degree, and e is 23 degree.The blade of this kind shape has more performance, makes flow, wasted work and efficient reach best.
Described blade in the utility model can also be 9 or 11.The distribution of these blades is carried out according to the distribution mode of 7 leaves.Certainly the quantity of blade also can be even number.
Referring to Fig. 5 and Fig. 6, in the foregoing description that the utility model provides, the root 31 of adjacent described blade 3 links together by a curvecd surface type joint 36, described joint 36 by last vane trailing edge backward the leading edge direction of a blade extend to form.The thickness of the wheel hub 2 in the utility model is connected with driving mechanism thereby be beneficial to supporting plate 1 less than the width of blade.Because the thickness of wheel hub 2 is less than the width of blade, when the root 31 of blade 3 was connected with wheel hub, root 31 needed the change shapes, with the thickness of suitable wheel hub 2.But behind this alteration of form, make the blade 3 and the join strength of wheel hub 2 reduce.The utility model is for the join strength of the root 31 that improves blade 3, the root 31 of adjacent vanes 3 is connected by a curvecd surface type joint 36, form an integral body between each blade 3 thereby make, also increased the be connected area of root 31, improved join strength with wheel hub 2.
Claims (9)
1. energy-saving and emission-reduction fan, comprise supporting plate and the flabellum that links together with described supporting plate, described flabellum comprises wheel hub and a plurality of curvecd surface type blade that extends radially outward from described wheel hub, it is characterized in that: have a reference line that passes rotating center on the described flabellum, the described blade that is positioned at described reference line both sides is symmetrical arranged, and the corner dimension difference of the center line of adjacent described blade in every side.
2. a kind of energy-saving and emission-reduction fan as claimed in claim 1 is characterized in that: the quantity of described blade is odd number, and one of them blade is positioned at described reference line place, forms reference vanes, and rest blade is evenly distributed in the both sides of described reference line.
3. a kind of energy-saving and emission-reduction fan as claimed in claim 2 is characterized in that: the difference of the center angle of adjacent described blade is that 1 degree is to 5 degree in every side.
4. a kind of energy-saving and emission-reduction fan as claimed in claim 1 is characterized in that: each described blade comprises integrally formed root, main body and end, and the leading edge of described end is formed with the arc protuberance towards sense of rotation.
5. a kind of energy-saving and emission-reduction fan as claimed in claim 1 is characterized in that: the 20%-25% of the body width that described arc protuberance is described blade.
6. a kind of energy-saving and emission-reduction fan as claimed in claim 1 is characterized in that: the front of described wheel hub is formed with many ribs of projection vertically, and its reverse side is formed with a plurality of projections of projection vertically.
7. a kind of energy-saving and emission-reduction fan as claimed in claim 1, it is characterized in that: each described blade comprises integrally formed body, root and end, the body of described blade and part end equidistantly are divided into four sections form five cross sections altogether, from near the cross section of described root to cross section near the end, the string of a musical instrument in each cross section and horizontal angle are respectively: 31.7 degree-33.7 degree, 30.5 degree-32.5 degree, 28.7 degree-30.7 degree, 25.9 degree-27.9 degree, 22.3 degree-24.3 are spent.
8. a kind of energy-saving and emission-reduction fan as claimed in claim 2 is characterized in that: described blade is 7,9 or 11.
9. a kind of energy-saving and emission-reduction fan as claimed in claim 1 is characterized in that: the root of adjacent described blade links together by a curvecd surface type joint, described joint by last vane trailing edge backward the leading edge direction of a blade extend to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200021359U CN201636083U (en) | 2010-01-12 | 2010-01-12 | Energy-saving and emission-reducing fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200021359U CN201636083U (en) | 2010-01-12 | 2010-01-12 | Energy-saving and emission-reducing fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636083U true CN201636083U (en) | 2010-11-17 |
Family
ID=43080574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200021359U Expired - Fee Related CN201636083U (en) | 2010-01-12 | 2010-01-12 | Energy-saving and emission-reducing fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636083U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937118A (en) * | 2016-06-29 | 2016-09-14 | 无锡小天鹅股份有限公司 | Fan disc for washing machine motor and pulsator washing machine with fan disc |
-
2010
- 2010-01-12 CN CN2010200021359U patent/CN201636083U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937118A (en) * | 2016-06-29 | 2016-09-14 | 无锡小天鹅股份有限公司 | Fan disc for washing machine motor and pulsator washing machine with fan disc |
| CN105937118B (en) * | 2016-06-29 | 2018-07-31 | 无锡小天鹅股份有限公司 | Fan blade for motor for washer and the rotary drum washing machine with it |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2016246617B2 (en) | Fan blade surface features | |
| CN201636038U (en) | Fan with high efficiency, energy saving and cost lowering | |
| CN201526472U (en) | Centrifugal fan with air inlet at both surfaces | |
| CN102483073A (en) | Propeller Fan, Molding Die, And Fluid Feed Device | |
| CN101893003A (en) | 3-D impeller of high-load centrifugal compressor | |
| CN102168687B (en) | Compressor first-stage blade with hub diameter of phi 762 | |
| CN111980964A (en) | Blade, axial fan blade and fan | |
| CN202091255U (en) | Axial fan | |
| CN205136124U (en) | Axial fan and axial compressor fan blade thereof | |
| CN201636083U (en) | Energy-saving and emission-reducing fan | |
| CN102536900A (en) | Axial flow wind wheel | |
| CN103573703A (en) | Axle-flow fan blade | |
| CN202991623U (en) | Axial flow wind wheel | |
| CN210949262U (en) | Novel plate type axial flow fan impeller | |
| CN202065241U (en) | First-stage blade of air compressor with hub diameter of phi 762 | |
| CN202418036U (en) | Axial flow fan and air conditioner with same | |
| CN203248404U (en) | Improved structure of fan for gasoline blower | |
| CN103573702B (en) | A kind of axial-flow windwheel and air-conditioning | |
| CN208702758U (en) | A kind of fan component | |
| CN102141051A (en) | Centrifugal fan impeller of range hood | |
| CN202117982U (en) | Centrifugal fan impeller of range hood | |
| CN210686423U (en) | Impeller and compressor | |
| CN213684677U (en) | Axial flow fan blade and air conditioning device | |
| CN203362609U (en) | Front disc and fan impeller | |
| CN202991628U (en) | Axial-flow fan and air conditioner with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111110 Address after: 315800 Mount Huangshan West Road, Beilun District, Zhejiang, No. 211, No. Patentee after: Xuelong Group Co.,Ltd. Address before: 315800 No. 211 West Mount Huangshan Road, Beilun District, Zhejiang, Ningbo Patentee before: Xuelong Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20150112 |
|
| EXPY | Termination of patent right or utility model |