CN101368575A - Fan impeller - Google Patents
Fan impeller Download PDFInfo
- Publication number
- CN101368575A CN101368575A CNA2007101452256A CN200710145225A CN101368575A CN 101368575 A CN101368575 A CN 101368575A CN A2007101452256 A CNA2007101452256 A CN A2007101452256A CN 200710145225 A CN200710145225 A CN 200710145225A CN 101368575 A CN101368575 A CN 101368575A
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- CN
- China
- Prior art keywords
- flabellum
- blast fan
- diversion division
- wheel hub
- air
- 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.)
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Abstract
The invention relates to a fan impeller which comprises a wheel hub; the periphery of the wheel hub is extended to have a plurality of vanes which are arranged around the wheel hub; each vane is provided with a windward surface and a leeward surface; wherein, at least more than one diversion part is arranged on the leeward surface. Accordingly, when the air is sucked from the upper and lower sides of the vanes, the heat dissipation efficiency loss caused by the mutual impact of the airflows is avoided under the dispersion and diversion effects of the diversion part.
Description
Technical field
The present invention relates to the impeller of fan, be meant a kind of blast fan with shunting, steering flow effect especially, it can improve near the turbulent situation the lee face of commonly using flabellum, to reduce resistance of air, is lifted out air quantity and fan utilization efficiency.
Background technique
As shown in Figure 1 and Figure 2, the blast fan of commonly using includes a wheel hub 10, and wheel hub 10 peripheral extended loops are wound with a plurality of flabellums 11 that are radial arrangement.When blast fan is driven by the motor (not shown), its peripheral air will be driven because of the rotation of blast fan and form the flow field.
Fig. 2, shown in Figure 3 for another example, each sheet flabellum 11 of blast fan all has a windward side 12 and a lee face 13.When blast fan rotates, air bears the propelling movement of the windward side 12 of flabellum 11, make near lee face 13 pressure drops of flabellum 11 and form a negative pressuren zone, in order to obtain the balance of pressure, this negative pressuren zone can it is peripheral air suck, and bear down a slice flabellum 11 windward side 12 propelling movement and form a circulation.
But, the negative pressuren zone of said fans impeller sucks after its peripheral air, can converge at lee face 13 ends of flabellum 11 by flabellum 11 upper and lower both sides inhaled airs respectively and form turbulent region 14, and the air-flows in the turbulent region 14 produce eddy current and noise because of constantly impact mutually, cancellation effect, make the air output of fan reduce, influence heat dissipation.
Summary of the invention
At the problems referred to above, main purpose of the present invention is in providing a kind of blast fan, and near the turbulent situation that it can solve the flabellum lee face of commonly using structure makes the flow field smooth and easy, to reduce resistance of air, improves the fan air output.
For achieving the above object, a kind of blast fan provided by the present invention, it comprises a wheel hub, described wheel hub periphery extended loop is wound with a plurality of flabellums that are radial arrangement, described flabellum has a windward side and a lee face, it is characterized in that: described lee face is provided with at least more than one diversion division.
In the technological scheme of the invention described above, described diversion division is positioned at the outer rim tail end near described flabellum, and radially is provided with in horizontal direction with the rotation of described blast fan, and the lee face of described flabellum is divided into upper and lower two parts.
In the technological scheme of the invention described above, the jointing place of described diversion division itself and diversion division and described flabellum is provided with the water conservancy diversion arc angle that is the curved arc shape.
In the technological scheme of the invention described above, described flabellum adopts wherein a kind of of axial flow flabellum or blowing-type flabellum.
Adopt technique scheme, when impeller of the present invention is inhaled into by the upper and lower both sides of flabellum respectively at air, under the shunting and guiding function of diversion division, can avoid air-flow because impact mutually, offset and generation eddy current, noise and loss of efficacy, reduce the flabellum wind-engaging simultaneously and cut influence, can promote stability, reach best radiating effect.
Description of drawings
Fig. 1 is a schematic top plan view of commonly using structure;
Fig. 2 is a schematic side view of commonly using structure;
Fig. 3 commonly uses the flow field schematic representation that the structure flabellum is driven;
Fig. 4 is a three-dimensional appearance schematic representation of the present invention;
Fig. 5 is a schematic top plan view of the present invention;
Fig. 6 is a schematic side view of the present invention;
Fig. 7 is the flow field schematic representation that flabellum of the present invention drives;
Fig. 8 is the flow field schematic representation that the another kind of enforcement of the present invention kenel flabellum is driven.
Embodiment
For describing structure of the present invention, feature and effect in detail, existing following preferred embodiment of act and accompanying drawings are as follows:
As Fig. 4, shown in Figure 5, the blast fan that the embodiment of the invention provided includes:
One wheel hub 20, wheel hub 20 peripheral extended loops are wound with a plurality of flabellums 21 that are radial arrangement, and wherein flabellum 21 can adopt a kind of in axial flow flabellum or the blowing-type flabellum, is a kind of blowing-type flabellum shown in the figure.
Each flabellum 21 has a windward side 22 and a lee face 23, its lee face 23 is provided with at least more than one diversion division 24, and the better position of diversion division 24 is in the outer rim tail end near flabellum 21, and radially be provided with in horizontal direction with the rotation of blast fan, make 23 diversed 24 of the lee faces of flabellum 21 divide into upper and lower two parts.
Fig. 6, shown in Figure 7 for another example, when blast fan is driven by the motor (not shown), its peripheral air will be driven because of the rotation of blast fan and form the flow field, and air is by after near the negative pressuren zone suction the lee face 23 of flabellum 21, the air that is inhaled into by flabellum 21 upper and lower both sides is because have the shunting and the guiding function of diversion division 24 respectively, easier flabellum 21 Surface runoff of being close to are avoided simultaneously because air-flow impacts, offsets the eddy current that produced and the situation of noise mutually.
Moreover, when air-flow is close to flabellum 21 Surface runoff, on the one hand can produce an augmented thrust to flabellum 21, can reduce flabellum 21 on the other hand and be subjected to wind and cut influence promoting its stability, and best heat dissipation is provided.
In addition, as shown in Figure 8, the jointing place of diversion division 25 itself and diversion division 25 and flabellum 21 can be designed as the water conservancy diversion arc angle that is the curved arc shape, makes easier flabellum 21 Surface runoff of being close to of air-flow, to avoid the generation of little turbulent flow.
In sum, blast fan provided by the present invention utilizes the design of diversion division 24 on flabellum 21 lee faces 23, make respectively the air that is inhaled into by flabellum 21 upper and lower both sides because the shunting and the guiding function of diversion division 24, can avoid air-flow to impact mutually, offset, keep the normal air output and the heat dissipation of blast fan, these characteristics are the real initiative that belongs in like product.
The above only is a preferable enforcement kenel of the present invention, and the equivalent structure that all application specification of the present invention, claims or accompanying drawing are done changes, and all should be included in the scope of patent protection of the present invention.
Claims (4)
1. blast fan, it comprises a wheel hub, and described wheel hub periphery extended loop is wound with a plurality of flabellums that are radial arrangement, and described flabellum has a windward side and a lee face, it is characterized in that: described lee face is provided with at least more than one diversion division.
2. blast fan as claimed in claim 1, it is characterized in that: described diversion division is positioned at the outer rim tail end near described flabellum, and radially be provided with in horizontal direction with the rotation of described blast fan, the lee face of described flabellum is divided into upper and lower two parts.
3. blast fan as claimed in claim 1 is characterized in that: the jointing place of described diversion division itself and diversion division and described flabellum is provided with the water conservancy diversion arc angle that is the curved arc shape.
4. blast fan as claimed in claim 1 is characterized in that: described flabellum adopts wherein a kind of of axial flow flabellum or blowing-type flabellum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101452256A CN101368575A (en) | 2007-08-17 | 2007-08-17 | Fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101452256A CN101368575A (en) | 2007-08-17 | 2007-08-17 | Fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101368575A true CN101368575A (en) | 2009-02-18 |
Family
ID=40412541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101452256A Pending CN101368575A (en) | 2007-08-17 | 2007-08-17 | Fan impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101368575A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697412A (en) * | 2016-01-27 | 2016-06-22 | 浙江理工大学 | Blade structure of centrifugal pump |
| CN108175352A (en) * | 2016-12-08 | 2018-06-19 | 青岛海尔洗碗机有限公司 | A kind of dish-washing machine of self-rotation spray thrower and the application spray thrower |
| CN111350692A (en) * | 2018-12-24 | 2020-06-30 | 宏碁股份有限公司 | Fan blade and fan |
| US11339796B2 (en) | 2018-12-07 | 2022-05-24 | Acer Incorporated | Fan |
-
2007
- 2007-08-17 CN CNA2007101452256A patent/CN101368575A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697412A (en) * | 2016-01-27 | 2016-06-22 | 浙江理工大学 | Blade structure of centrifugal pump |
| CN108175352A (en) * | 2016-12-08 | 2018-06-19 | 青岛海尔洗碗机有限公司 | A kind of dish-washing machine of self-rotation spray thrower and the application spray thrower |
| CN108175352B (en) * | 2016-12-08 | 2021-08-27 | 青岛海尔洗碗机有限公司 | Self-rotating sprayer and dish washing machine applying same |
| US11339796B2 (en) | 2018-12-07 | 2022-05-24 | Acer Incorporated | Fan |
| CN111350692A (en) * | 2018-12-24 | 2020-06-30 | 宏碁股份有限公司 | Fan blade and fan |
| CN111350692B (en) * | 2018-12-24 | 2022-04-19 | 宏碁股份有限公司 | Fan blade and fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090218 |