CN105089924A - Electric generator blade - Google Patents
Electric generator blade Download PDFInfo
- Publication number
- CN105089924A CN105089924A CN201510533084.XA CN201510533084A CN105089924A CN 105089924 A CN105089924 A CN 105089924A CN 201510533084 A CN201510533084 A CN 201510533084A CN 105089924 A CN105089924 A CN 105089924A
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- CN
- China
- Prior art keywords
- blade
- blade part
- parts
- grooves
- groove
- 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.)
- Pending
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention relates to an electric generator blade. The blade is provided with a base part and a plurality of blade parts, wherein the base part is provided with a base part surface; the blade parts are provided with blade surfaces for allowing the blade parts to be in contact with air flow; the blade parts are mounted on a wheel disc; a plurality of grooves are formed in the blade parts; the grooves are distributed in the blade surfaces of the blade parts, and are sunken into the blade surfaces; the grooves in the blade surfaces are trapezoidal concave surfaces; and the depths of the grooves are one fourth of the thicknesses of the blade parts. According to the electric generator blade, the plurality of grooves are additionally formed in the blade parts, so that flow resistance between the blade and the air flow can be reduced, and noises generated during the rotation of the blade are reduced.
Description
Technical field
The invention belongs to field of wind power equipment, particularly relate to a kind of generator blade.
Background technique
Wind energy, as the reproducible resource of one, more and more receives the concern of people, and in the age of this shortage of resources, countries in the world are all focused in the reproducible resource such as wind energy, solar energy.In prior art, the blade of wind-driven generator is in rotary course, stratosphere can be produced between the air-flow of the base surface of blade and the surface of blade and surrounding, and stratosphere cannot be attached to the base surface of blade and the surface of blade, so the base surface of blade and there is surface friction drag between the surface of blade and air-flow, in addition, also because the base surface of blade and the surface friction drag between the surface of blade and air-flow produce noise.
Summary of the invention
The object of the invention is, in order to overcome the deficiencies in the prior art, to provide a kind of generator blade, solving the shortcoming that its flow resistance is large, noise is large.
The present invention is achieved through the following technical solutions:
A kind of generator blade, this blade has base portion and several blade part, this base portion has base surface, this blade part has for the blade surface with air flow contacts, described blade part is arranged on wheel disc, described blade part has multiple groove, and described groove is distributed in the blade surface of blade part, and recessed in this blade surface.
As the preferred technical solution of the present invention, the groove on described blade surface is trapezoidal concave surface.
As the preferred technical solution of the present invention, the width of described blade part is increased to end gradually by root.
As the preferred technical solution of the present invention, the degree of depth of described groove is 1/4th of blade part thickness.
Compared with prior art, the invention has the beneficial effects as follows: the present invention, by setting up multiple groove on blade part, can reduce the flow resistance between blade and air-flow, reducing blade noise when rotated.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1 ?wheel disc; 2-blade part; 3-groove.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to Fig. 1, Fig. 1 is structural representation of the present invention.
Described a kind of generator blade, this blade has base portion and several blade part 2, this base portion has base surface, this blade part 2 has for the blade surface with air flow contacts, described blade part 2 is arranged on wheel disc 1, described blade part 2 has multiple groove 3, and described groove 3 is distributed in the blade surface of blade part 2, and recessed in this blade surface.
Groove 3 on described blade surface is trapezoidal concave surface, and the width of described blade part 2 is increased to end gradually by root, and the degree of depth of described groove 3 is 1/4th of blade part 2 thickness.
To sum up, the present invention, by setting up multiple groove 3 on blade part, can reduce the flow resistance between blade and air-flow, reduces blade noise when rotated.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a generator blade, this blade has base portion and several blade part (2), this base portion has base surface, this blade part (2) has for the blade surface with air flow contacts, described blade part (2) is arranged on wheel disc (1), it is characterized in that: described blade part (2) has multiple groove (3), described groove (3) is distributed in the blade surface of blade part (2), and recessed in this blade surface.
2. a kind of generator blade according to claim 1, is characterized in that: the groove (3) on described blade surface is trapezoidal concave surface.
3. a kind of generator blade according to claim 1, is characterized in that: the width of described blade part (2) is increased to end gradually by root.
4. a kind of generator blade according to Claims 2 or 3, is characterized in that: the degree of depth of described groove (3) is 1/4th of blade part (2) thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510533084.XA CN105089924A (en) | 2015-08-26 | 2015-08-26 | Electric generator blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510533084.XA CN105089924A (en) | 2015-08-26 | 2015-08-26 | Electric generator blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105089924A true CN105089924A (en) | 2015-11-25 |
Family
ID=54571079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510533084.XA Pending CN105089924A (en) | 2015-08-26 | 2015-08-26 | Electric generator blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105089924A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1705822A (en) * | 2002-10-22 | 2005-12-07 | 西门子公司 | Wind power unit with structured surfaces for improvement of flow |
| CN101029629A (en) * | 2005-11-17 | 2007-09-05 | 通用电气公司 | Rotor blade for a wind turbine having aerodynamic feature elements |
| CN201407131Y (en) * | 2009-05-05 | 2010-02-17 | 李佳原 | Wind generator |
| CN102918263A (en) * | 2010-09-01 | 2013-02-06 | 塞奥佐罗斯·图拉斯 | Wind turbine blades with dimples |
| CN204921249U (en) * | 2015-08-26 | 2015-12-30 | 陈海花 | Generator blade |
-
2015
- 2015-08-26 CN CN201510533084.XA patent/CN105089924A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1705822A (en) * | 2002-10-22 | 2005-12-07 | 西门子公司 | Wind power unit with structured surfaces for improvement of flow |
| CN101029629A (en) * | 2005-11-17 | 2007-09-05 | 通用电气公司 | Rotor blade for a wind turbine having aerodynamic feature elements |
| CN201407131Y (en) * | 2009-05-05 | 2010-02-17 | 李佳原 | Wind generator |
| CN102918263A (en) * | 2010-09-01 | 2013-02-06 | 塞奥佐罗斯·图拉斯 | Wind turbine blades with dimples |
| CN204921249U (en) * | 2015-08-26 | 2015-12-30 | 陈海花 | Generator blade |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151125 |
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| WD01 | Invention patent application deemed withdrawn after publication |