CN204476861U - The structure improvement of fan blade - Google Patents
The structure improvement of fan blade Download PDFInfo
- Publication number
- CN204476861U CN204476861U CN201420868161.8U CN201420868161U CN204476861U CN 204476861 U CN204476861 U CN 204476861U CN 201420868161 U CN201420868161 U CN 201420868161U CN 204476861 U CN204476861 U CN 204476861U
- Authority
- CN
- China
- Prior art keywords
- fan blade
- structure improvement
- depressions
- utility
- those depressions
- 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
A kind of structure improvement of fan blade, described fan blade has a first surface and is positioned at the second surface of opposite side of first surface, wherein first surface and second surface have a plurality of depression, those depressions are polygonal at the contour shape of first surface and second surface, the surface of those depressions is polyhedral shape, and fan blade cuts through the first surface of fluid when rotated and second surface can reduce flow resistance by above-mentioned depression and have the effect reducing noise.
Description
Technical field
The utility model is the structure about a kind of fan, particularly a kind of structure improvement that can reduce the fan blade of flow resistance and noise.
Background technique
For the manufacturer of fan, noise when how to promote the air quantity of fan, reduce manufacture cost and reduce fan running and vibration are one of dealer's targets of making great efforts always.Especially at present many electronic equipments or product are all equipped with radiation fan usually, noise when how to reduce fan running when taking heat dissipation into account and vibration, improvement project primary especially.
About promoting the heat dissipation of fan, known solution comprises the angle design of fan blade, the number of sheets of fan blade and leaf several factors.One of occurrence cause of known fan noise be due to fan blade rotate time, the air-flow velocity of fan blade both sides not etc., does not cause the pressure change of air and produces.Especially for current many electronic products, its inside is equiped with radiation fan usually, for requiring the electronic product of quiet degree, the real difficulty of the noise produced when fan rotates is esthetically acceptable to the consumers, therefore, how to reduce noise when fan rotates, become fan manufacture to make great efforts one of target improved.
Model utility content
The purpose of this utility model is providing a kind of structure improvement that can improve the fan blade of noise problem.In an embodiment of the present utility model, wherein the two relative side surfaces of fan blade have a plurality of depression, the contour shape of those depressions is polygonal, the surface of those depressions is polyhedral shape, the air-flow that fan blade is flowed through by two side surfaces of fan blade when rotated, can reduce flow resistance because of above-mentioned depression and have the effect reducing noise.
In a structure improved embodiment of the utility model fan blade, wherein the contour shape of those depressions can be quadrilateral, Hexagon and Octagon wherein any one.
In a structure improved embodiment of the utility model fan blade, the distributing position being wherein located at a plurality of depressions of two side surfaces of fan blade is respectively aligned with each other at the projecting direction of fan blade.
In another embodiment structure improved of the utility model fan blade, the distributing position being wherein located at a plurality of depressions of two side surfaces of fan blade respectively intermeshes at the projecting direction of fan blade.
By the structure improved embodiment of above-mentioned the utility model fan blade, the air-flow that fan blade is flowed through by two side surfaces of fan blade when rotated, can reduce flow resistance because of above-mentioned depression and have the effect reducing noise.
Below coordinate graphic described content to be better embodiment for realizing the above-mentioned object of the utility model, embodiment, technical characteristics and effect thereof, and be not used to limit the utility model.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a structure improved instance constructs figure of the utility model fan blade;
Fig. 2 is the plan view of embodiment's structure of Fig. 1;
Fig. 3 is the worm's eye view of embodiment's structure of Fig. 1;
Fig. 4 is the local structure enlarged view of an embodiment of the fan blade of Fig. 1;
Fig. 5 is the local structure enlarged view of another embodiment structure improved of the utility model fan blade, and the distributing position of a plurality of depressions of two side surfaces of fan blade is located in display respectively;
Fig. 6 is a structure improved using state schematic diagram of the utility model fan blade, the microcosmic situation of two side surfaces of display airflow passes fan blade.
Symbol description
10 fan assemblys
20 fan blade
21 first surfaces
22 second surfaces
211 depressions
221 depressions
Embodiment
Incorporated by reference to consulting Fig. 1 ~ Fig. 3, for structure improved embodiment's structure of the utility model fan blade 20, what show in figure is a kind of axial-flow fan apparatus 10 being common to electronic equipment or electronic equipment use, but this is the structure in order to the utility model fan blade 20 to be described, be not intended to limit the example application of fan blade 20 of the present utility model.
Fan assembly 10 comprises the several fan blade 20 around same axis rotation, any one fan blade 20 has first surface 21 and the second surface 22 being positioned at relative two sides, fan blade cuts through air-flow (see Fig. 6) with an oblique angle when rotated, wherein the first surface 21 of fan blade 20 and second surface 22 have a plurality of depression 211 and 221 respectively, arrange at each interval at those depressions 211 and 221 of an embodiment of the present utility model, the mode of arrangement can be rectangular array, annular array or irregular array wherein any one, the contour shape of those depressions 211 and 221 is polygonal, the surface of those depressions 211 and 221 is polyhedral shape (see Fig. 1 and Fig. 6), in other words the polyhedron that the surface configuration of those depressions 211 and 221 can be corresponding with coincide.
In an embodiment of the present utility model, wherein the contour shape of those depressions 211 and 221 is quadrilateral (see Fig. 2,3), and wherein the position at each angle can have an arc lead angle; Also Hexagon, Octagon and other polygonal (not shown) is can be at the contour shape of those depressions 211 and 221 of other embodiment of the present utility model.
Refer to Fig. 4, in a structure improved embodiment of the utility model fan blade 20, the distributing position being wherein located at the first surface 21 of fan leaf 20 and a plurality of depressions 211 and 221 of second surface 22 is respectively aligned with each other at the projecting direction of fan blade 20.
In another embodiment structure improved of the utility model fan blade 20, the distributing position being wherein located at the first surface 21 of fan blade and a plurality of depressions 211 and 221 of second surface 22 respectively intermeshes (see Fig. 5) at the projecting direction of fan blade 20.
Constructed by the above embodiments, the air-flow that the fan blade 20 that the utility model proposes is flowed through by first surface 21 and the second surface 22 of fan blade when rotated, can produce small vortex because of above-mentioned a plurality of depressions 211 and 221 and then reduce flow resistance and have the effect (see Fig. 6) reducing noise.
Above-described embodiment and/or mode of execution, only in order to the preferred embodiment and/or the mode of execution that realize the utility model technology to be described, not any pro forma restriction is done to the mode of execution of the utility model technology, any those skilled in the art, do not departing from the scope of the technological means disclosed by the utility model content, when doing a little change or be modified to the embodiment of other equivalence, but the technology identical with the utility model essence or embodiment must be considered as.
Claims (6)
1. the structure improvement of a fan blade, this fan blade has the first surface and a second surface that are positioned at relative two sides, this fan blade cuts through air-flow with an oblique angle when rotated, it is characterized in that: this first surface and this second surface have a plurality of depression, the contour shape of those depressions is polygonal, and the surface of those depressions is polyhedral shape.
2. the structure improvement of fan blade as claimed in claim 1, it is characterized in that, wherein those depressions arrange at each interval, and the mode of this arrangement can be rectangular array, annular array or irregular array wherein any one.
3. the structure improvement of fan blade as claimed in claim 1, it is characterized in that, wherein the contour shape of those depressions can be quadrilateral, Hexagon and Octagon wherein any one.
4. the structure improvement of fan blade as claimed in claim 1, it is characterized in that, wherein each angle of the polygonal profile shape of those depressions also has an arc lead angle.
5. the structure improvement of fan blade as claimed in claim 1, is characterized in that, the distributing position being wherein located at those depressions of this first surface and this second surface is respectively aligned with each other at the projecting direction of this fan blade.
6. the structure improvement of fan blade as claimed in claim 1, is characterized in that, the distributing position being wherein located at those depressions of this first surface and this second surface respectively intermeshes at the projecting direction of this fan blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868161.8U CN204476861U (en) | 2014-12-31 | 2014-12-31 | The structure improvement of fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868161.8U CN204476861U (en) | 2014-12-31 | 2014-12-31 | The structure improvement of fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204476861U true CN204476861U (en) | 2015-07-15 |
Family
ID=53632653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420868161.8U Expired - Fee Related CN204476861U (en) | 2014-12-31 | 2014-12-31 | The structure improvement of fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204476861U (en) |
-
2014
- 2014-12-31 CN CN201420868161.8U patent/CN204476861U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20161231 |