CN201916248U - Fan impeller - Google Patents
Fan impeller Download PDFInfo
- Publication number
- CN201916248U CN201916248U CN2011200078224U CN201120007822U CN201916248U CN 201916248 U CN201916248 U CN 201916248U CN 2011200078224 U CN2011200078224 U CN 2011200078224U CN 201120007822 U CN201120007822 U CN 201120007822U CN 201916248 U CN201916248 U CN 201916248U
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- CN
- China
- Prior art keywords
- fan
- wheel hub
- utility
- model
- fan leaf
- 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
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Abstract
The utility model relates to a fan impeller, which comprises a hub and a plurality of first blades which are annularly arranged on the periphery of the hub, wherein a diversion cylinder which is coaxial with the hub is sleeved on the outer ends of the first blades, and the outer wall of the diversion cylinder is annularly provided with a plurality of second blades. The utility model has the beneficial effects that: by adopting the above structure, the vortex can be prevented, and the formed air flow presents in a radiation state, so the blowing distance can be greatly improved, and the wind power is soft.
Description
(1) technical field
The utility model relates to a kind of fan component, relates in particular to a kind of blast fan.
(2) background technique
Existing blast fan mainly comprises wheel hub and is located on this wheel hub some fan leafs on every side.Thereby fan leaf rotates under the drive of wheel hub and produces air-flow formation wind, because fan leaf cuts air when rotated and does axial flow motion and cause axial flow field, also cause inevitably radially flow field simultaneously, this radially forms eddy current (as shown in Figure 1) in the place ahead of blast fan in the flow field easily, thereby make that the air supplying distance of blast fan is shorter, and wind-force not very soft.
(3) summary of the invention
Have above-mentioned deficiency in the prior art in order to overcome, the utility model provides a kind of simple in structure, wind-force is soft and air supplying distance is far away blast fan.
The technical scheme in the invention for solving the technical problem is: a kind of blast fan, comprise wheel hub and be located on this wheel hub some first fan leafs on every side, be arranged with the guide shell coaxial on the outer end of this first fan leaf, be equipped with some second fan leafs on the outer wall of this guide shell with described wheel hub.
Further, described wheel hub, first fan leaf, guide shell and second fan leaf are one-body molded.
The utility model in use, first fan leaf and second fan leaf be rotation together under the drive of wheel hub, collide in the radially flow field that first fan leaf produces can not form eddy current on guide shell, and in the axially axial motion of the drive lower edge wheel hub in flow field, the air-flow of first fan leaf generation simultaneously can suppress the radially flow field formation eddy current that second fan leaf produces, thereby the air-flow that forms is dispersion shape, make air supplying distance be improved greatly, and wind-force is soft.
The beneficial effects of the utility model are: adopt said structure, can suppress the generation of eddy current, thereby the air-flow that forms is dispersion shape, make air supplying distance be improved greatly, and wind-force is soft.Because described wheel hub, first fan leaf, guide shell and second fan leaf are one-body molded, make structure of the present utility model simple more compact.
(4) description of drawings
Fig. 1 is the schematic representation of the air-flow that blast fan produces in the prior art;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the schematic representation of the air-flow of the utility model generation.
(5) embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
With reference to Fig. 1, a kind of blast fan, comprise wheel hub 1 and be located on this wheel hub 1 some first fan leafs 2 on every side, be arranged with the guide shell 3 coaxial on the outer end of this first fan leaf 2 with described wheel hub 1, be equipped with some second fan leafs 4 on the outer wall of this guide shell 3, described wheel hub 1, first fan leaf 2, guide shell 3 and second fan leaf 4 are one-body molded, make structure of the present utility model simple more compact.
The utility model in use, first fan leaf 2 and second fan leaf 4 be rotation together under the drive of wheel hub 1, the radially flow field that first fan leaf 2 produces is collided and can not form eddy current on guide shell 3, and in the axially axial motion of the drive lower edge wheel hub 1 in flow field, the air-flow of first fan leaf, 2 generations simultaneously can suppress the radially flow field formation eddy current that second fan leaf 4 produces, thereby the air-flow that forms is dispersion shape, as shown in Figure 2, make air supplying distance be improved greatly, and wind-force is soft.
Claims (2)
1. blast fan, comprise wheel hub and be located on this wheel hub some first fan leafs on every side, it is characterized in that: be arranged with the guide shell coaxial on the outer end of this first fan leaf, be equipped with some second fan leafs on the outer wall of this guide shell with described wheel hub.
2. according to the described blast fan of claim 1, it is characterized in that: described wheel hub, first fan leaf, guide shell and second fan leaf are one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200078224U CN201916248U (en) | 2011-01-10 | 2011-01-10 | Fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200078224U CN201916248U (en) | 2011-01-10 | 2011-01-10 | Fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916248U true CN201916248U (en) | 2011-08-03 |
Family
ID=44416045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200078224U Expired - Fee Related CN201916248U (en) | 2011-01-10 | 2011-01-10 | Fan impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423082A (en) * | 2013-08-22 | 2013-12-04 | 苏州市佳腾精密模具有限公司 | Fan blade |
-
2011
- 2011-01-10 CN CN2011200078224U patent/CN201916248U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423082A (en) * | 2013-08-22 | 2013-12-04 | 苏州市佳腾精密模具有限公司 | Fan blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20130110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |