CN2381823Y - Wide angular impeller of electric fan - Google Patents
Wide angular impeller of electric fan Download PDFInfo
- Publication number
- CN2381823Y CN2381823Y CN 98241022 CN98241022U CN2381823Y CN 2381823 Y CN2381823 Y CN 2381823Y CN 98241022 CN98241022 CN 98241022 CN 98241022 U CN98241022 U CN 98241022U CN 2381823 Y CN2381823 Y CN 2381823Y
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- blade
- impeller
- inclination angle
- electric fan
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Abstract
The utility model relates to a wide angular impeller of an electric fan. The diameter of an impeller of an existing desktop electric fan, or a floor electric fan, or a wall hung electric fan is small, the air blow area of the impeller is small, and a part which is as high as the height of a human body can only be blown. The utility model provides a wide angular impeller, comprising a wheel hub and a plurality of blades which are arranged along the circumferential direction of the wheel hub. Inclination angles in each section of the blades are different, or the inclination angles of the blades are incompletely identical. Sections of the blades with different inclination angles, or the blades with different inclination angles can generate air streams with different cone angles, and a truncated cone air blow section which is expanded outwards is formed by the air streams with different cone angles. The range for supplying air of an electric fan is enlarged, air force is soft and comfortable, and the utility model uses a simple and economical mode to lead the using effect of the electric fan to be obviously enhanced.
Description
The utility model relates to a kind of electric fan, is specifically related to the impeller of electric fan.
Desk-top, floor model, wall-hanging electric fan are used for producing air-flow, quicken human-body radiating.This electric fan has little, the advantages of simple structure and simple of volume.Shortcoming is that the impeller diameter of this electric fan is little, and blowing range is little.Make the impeller teeter with horizontal oscillating mechanism, enlarge horizontal blowing range.But vertically blowing range does not enlarge, and only blows to the part of human body height usually.Increase vertical oscillating mechanism vertical blowing range is expanded to some extent, form the blow zones of waveform quadrant jointly with horizontal oscillating mechanism.Make the structure complicated of electric fan but increase vertical oscillating mechanism, and be positioned at the trough part still blow less than.
Air-flow that the traditional electrical blast fan is produced and impeller shaft line parallel are similar to cylindrical body, and blowing range is little.At this shortcoming, the purpose of this utility model is to provide a kind of wide-angle formula impeller, and the air-flow that impeller is produced is the truncated cone that expands outwardly, and enlarges the blowing range of impeller itself.
The leaf blade of most propeller cavitations that the wide-angle formula impeller that the utility model provides comprises the wheel hub that turns round the bodily form, arranges along the circumference of hub direction, it is characterized in that producing the different air-flow of cone angle, the common truncated cone blow zones that expands outwardly that forms by the different different blade of blade segments or inclination angle in inclination angle.
One of constituted mode of wide-angle formula impeller is the paired blade combination by different angle.Each impeller has at least 2 pairs of blades, and each is to the inclination angle difference of blade.Every pair of sharf is symmetrical in the center line layout of wheel hub, and inclination angle each other is identical.
Two of the constituted mode of wide-angle formula impeller is the blade combinations by the different angle that is positioned at different annuluses.Blade is distributed at least 2 annuluses, the inclination angle difference of the blade of different annuluses, and the inclination angle of outer annular region blade is greater than the inclination angle of interior annulus blade, and the blade in the same annulus has identical inclination angle.Adjacent annular has coupling ring between the district, and the blade in adjacent annular district coupling ring all therewith is connected into one.
Three of the constituted mode of wide-angle formula impeller is made up of identical blade, the inclination angle difference at each position of blade, and it is big that its inclination angle becomes from inside to outside gradually.
The advantage of the wide-angle formula impeller that the utility model provides is simple in structure, effective blowing range of 2 to 5 meters is able to remarkable expansion in electric fan the place ahead, be enough to remedy the shortcoming of the existing vertical blowing range deficiency of electric fan, wind-force is soft comfortable, and using effect is significantly improved.
Below description by accompanying drawing and preferred embodiment the utility model is illustrated in greater detail.
Fig. 1 is the front view of the utility model wide-angle formula impeller embodiment SA;
Fig. 2 is the sectional view along A-A line among Fig. 1;
Fig. 3 is the sectional view along B-B line among Fig. 1;
Fig. 4 is the front view of the utility model wide-angle formula impeller embodiment SB;
Fig. 5 is the sectional view along C-C line among Fig. 4;
Fig. 6 is the front view of the utility model wide-angle formula impeller embodiment SC;
Fig. 7 is the sectional view along D-D line among Fig. 6.
Fig. 1 is extremely shown in Figure 3 to be the embodiment SA of the utility model wide-angle formula impeller.This impeller is made up of wheel hub 10A, the paired leaf blade 12A of propeller cavitation and the 14A of the revolution bodily form.The center of wheel hub 10A has the axis hole 16 equipped with motor output shaft, and the rear end of wheel hub 10A has locating slot 18.The inclination angle of blade 12A and blade 14A is inequality.Every pair of sharf is symmetrical in the center line layout of wheel hub 10A, and the inclination angle is mutually the same.
Fig. 4 and shown in Figure 5 be the embodiment SB of the utility model wide-angle formula impeller.This impeller by wheel hub 10B, lay respectively at 2 blade 12B and 14B, coupling rings 20 in the annular concentric district and form.Wheel hub 10B has axis hole 16 and the locating slot 18 equipped with motor output shaft.Blade 12B is different with the inclination angle of blade 14B.Coupling ring 20 is between adjacent annulus, and blade 12B and 14B all link with coupling ring 20 and be integral.
Fig. 6 and shown in Figure 7 be the embodiment SC of the utility model wide-angle formula impeller.This impeller is made up of wheel hub 10C, the blade 12C of the revolution bodily form.The center of wheel hub 10C has the axis hole 16 equipped with motor output shaft, and the rear end of wheel hub 10C has locating slot 18.The inclination angle at each position of blade 12C changes according to certain rules, and the air-flow that is produced is the truncated cone.
Above-described only is preferred embodiment of the present utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, can also make some conversion and improvement, these all should be considered as belonging to protection domain of the present utility model.
Claims (5)
1. the wide-angle formula impeller of an electric fan, the leaf blade of most propeller cavitations that this impeller comprises the wheel hub that turns round the bodily form, arranges along the circumference of hub direction, it is characterized in that producing the different air-flow of cone angle, the common truncated cone blow zones that expands outwardly that forms by the different different blade of blade segments or inclination angle in inclination angle.
2. wide-angle formula impeller as claimed in claim 1 is characterized in that described impeller has at least 2 pairs of blades, and each is to the inclination angle difference of blade, and every pair of sharf is symmetrical in the impeller center line and arranges that inclination angle each other is identical.
3. wide-angle formula impeller as claimed in claim 1 is characterized in that described blade is distributed at least 2 annuluses, the inclination angle difference of the blade of different annuluses, and the inclination angle of outer annular region blade is greater than the inclination angle of interior annulus blade.
4. as claim 1,3 described wide-angle formula impellers, it is characterized in that between the described annulus coupling ring being arranged, the blade in adjacent annular district coupling ring all therewith is connected into one.
5. wide-angle formula impeller as claimed in claim 1 is characterized in that the inclination angle difference at each position of described blade, and it is big that its inclination angle becomes from inside to outside gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98241022 CN2381823Y (en) | 1998-09-28 | 1998-09-28 | Wide angular impeller of electric fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98241022 CN2381823Y (en) | 1998-09-28 | 1998-09-28 | Wide angular impeller of electric fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2381823Y true CN2381823Y (en) | 2000-06-07 |
Family
ID=33987869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98241022 Expired - Fee Related CN2381823Y (en) | 1998-09-28 | 1998-09-28 | Wide angular impeller of electric fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2381823Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762823A (en) * | 2016-12-28 | 2017-05-31 | 东莞市卓奇电子科技有限公司 | Multiple flow passages axle stream wind focuses on impeller |
-
1998
- 1998-09-28 CN CN 98241022 patent/CN2381823Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762823A (en) * | 2016-12-28 | 2017-05-31 | 东莞市卓奇电子科技有限公司 | Multiple flow passages axle stream wind focuses on impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |