CN201221438Y

CN201221438Y - Improved structure of wind power generator hemi-spherical fan blade

Info

Publication number: CN201221438Y
Application number: CNU2008200491234U
Authority: CN
Inventors: 肖伟南
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-13
Filing date: 2008-06-13
Publication date: 2009-04-15
Anticipated expiration: 2018-06-13

Abstract

The utility model discloses an improved structure for the hemispheric blades of a wind-driven generator. The wind-driven generator is a vertical-axis wind-driven generator, a plurality of hollow hemispheric blades spreading in a plane dendritic manner are fixed on the main shaft, an opening in round, rectangular or other geometric shape is made at the bottom of each hemispheric blade by cutting; a flexible flap plate (with the shape identical with the part cut off the spherical surface and with the size slightly larger than or smaller than the part cut off) is fixed on the inner spherical surface by the hinge arranged above the opening and is covered above the opening; a plurality of supports are fixed near the periphery of the opening on the external spherical surface, and a fender pile vertically reaching to the opening is fixed on each support, and the end part is slightly extended inside the opening near the inner edge of the opening. As the flexible flap plate is arranged at the spherical bottom of the hemispheric blade, the influence of wind-power offset between two hemispheric blades, thereby, power generation of the generator is ensured; besides, the fender pile can avoid the noise produced upon the collision between the dropping-down flexible flap plate and the brim of the opening arranged at the bottom of the blade.

Description

The improvement structure of wind-driven generator hemisphere fan blade

Technical field

The utility model relates to technical field of wind power generator, particularly a kind of improvement structure of wind-driven generator hemisphere fan blade.

Background technique

The vertical axis aerogenerator that existing hemisphere fan blade horizontally rotates, it is the good facility of energy-conservation generating under the gentle breeze state, be fixed with a plurality of hemisphere fan blades that are the hollow of the dendritic stretching, extension of level on its housing, its sphere is close-shaped, because the resistance of air that single hemisphere fan blade is subjected to is less, under the natural wind gentle breeze state, also can under promoting, wind-force horizontally rotate, drive engine power generation, but when wind-force is bigger or in the long-term bigger area of wind-force, because wherein per two position opposed hemispherical shape fan blades position of accepting wind-force is almost opposite, one in inner ball surface, one at outer spherical surface, like this, the two suffered powerful wind-force produces payment mutually, and all fan blades rotate difficulty on the contrary as a result, thereby can't reach the effect of wind-power electricity generation, have much room for improvement.

The model utility content

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, and a kind of improvement structure of wind-driven generator hemisphere fan blade is provided, and can reach gentle breeze or high wind and can both make the generator good result of running smoothly.

The technical solution of the utility model is: the improvement structure that a kind of wind-driven generator hemisphere fan blade is provided, described wind-driven generator is a vertical axis aerogenerator, be fixed with a plurality of hemisphere fan blades that are the hollow of the dendritic stretching, extension of level on its main shaft, the sphere of hemisphere fan blade bottom is cut circle, the opening of square or other geometrical shape; Identical with institute truncated-spherical partial shape, as to be a bit larger tham or to be slightly smaller than institute's truncated-spherical part drop in leaf, the loose-leaf by the opening top is fixed on inner ball surface and covers on the opening; Be fixed with a plurality of supports near open circumferential on the outer spherical surface, be fixed with the fender pile that vertically stretches to opening on each support, it is near edge in the opening, and slightly stretch out in opening the end.

The improvement structure of aforesaid wind-driven generator hemisphere fan blade, support is a groove shapes, fender pile passes groove, and fastens between the twice trough rim of groove by rivet grip.

The improvement structure of the wind-driven generator hemisphere fan blade of said structure, because the drop in leaf structure has been adopted in the sphere bottom at the hemisphere fan blade, eliminated the wind-force payment influence between two relative hemisphere fan blades of position, the generating thereby the assurance generator turns round smoothly, in addition, the setting of fender pile can be avoided drop in leaf to cover the edge of opening collision of following time bottom fan blade and produce noise.

Description of drawings

Below in conjunction with the drawings and specific embodiments structure of the present utility model and advantage are further described.

Fig. 1 is hemisphere fan blade (1) the part stereogram when raising;

Fig. 2 is the stereogram of hemisphere fan blade (1) when covering opening (2) and going up;

Fig. 3 is the stereogram of hemisphere fan blade (1);

Fig. 4 is the user mode figure of existing hemisphere fan blade device.

Embodiment

Referring to Fig. 1, Fig. 2, Fig. 4, a kind of improvement structure of wind-driven generator hemisphere fan blade is provided, described wind-driven generator is a vertical axis aerogenerator, be fixed with six hemisphere fan blades 1 that are the hollow of the dendritic stretching, extension of level on its main shaft, the sphere bottom of hemisphere fan blade 1 is cut circular opening 2.Identical with institute truncated-spherical partial shape, be a bit larger tham the drop in leaf 3 of institute's truncated-spherical part, the loose-leaf by opening 2 tops is fixed on inner ball surface and covers on the opening 2.In the use, when being in gentle breeze state following time, the drop in leaf 3 of all hemisphere fan blades 1 all covers on the opening 2, hemisphere fan blade 1 normally rotates, the generator operation generating, when being in high wind state following time, per two position opposed hemispherical shape fan blades 1, one of them accepts wind-force for inner ball surface, and drop in leaf 3 covers on the opening 2, and hemisphere fan blade 1 is subjected to the promotion of powerful wind-force, another then accepts wind-force for outer spherical surface, its drop in leaf 3 is blown open by high wind and starts, and high wind passes opening 2, and the wind-force that whole hemispherical fan blade 1 is subjected to becomes less, also the wind-force of promptly repealing by implication with previous hemisphere fan blade 1 is less, thereby can eliminate the influence that the two wind-force is repealed by implication substantially, guarantee the normal fast rotational of whole fan blade device, also just guarantee the normal operation generating of generator.Above-mentioned opening 2 also can be square or other geometrical shape, and drop in leaf 3 also can be slightly smaller than institute's truncated-spherical part, and using effect is consistent.

Referring to Fig. 3, be fixed with three supports 4 near opening 2 peripheries on the outer spherical surface, be fixed with the fender pile 5 that vertically stretches to opening on each support 4, it is near edge in the opening 2, and slightly stretch out in opening 2 end.Specifically, support 4 is a groove shapes, and fender pile 5 passes groove, and fastens between the twice trough rim of groove by rivet grip.When the movable flip 3 of hemisphere fan blade 1 is covered under sheds 2,, can avoid moving turnover panel 3 lid opening 2 peripheral collisions of following times bottom fan blade to produce noise owing to there is fender pile 5 to withstand.

The foregoing description is a preferred embodiment of the present utility model, and all and the similar structure of the utility model and the equivalence of being done change, and all should belong to protection category of the present utility model.

Claims

1, a kind of improvement structure of wind-driven generator hemisphere fan blade, described wind-driven generator is a vertical axis aerogenerator, be fixed with a plurality of hemisphere fan blades (1) that are the hollow of the dendritic stretching, extension of level on its main shaft, it is characterized in that: the sphere of hemisphere fan blade (1) bottom is cut circle, the opening (2) of square or other geometrical shape; Identical with institute truncated-spherical partial shape, as to be a bit larger tham or to be slightly smaller than institute's truncated-spherical part drop in leaf (3), the loose-leaf by opening (2) top is fixed on inner ball surface and covers on the opening (2); Be fixed with a plurality of supports (4) near opening (2) periphery on the outer spherical surface, be fixed with the fender pile (5) that vertically stretches to opening on each support (4), it is near the interior edge of opening (2), and slightly stretch out in opening (2) end.

2, the improvement structure of wind-driven generator hemisphere fan blade according to claim 1 is characterized in that: support (4) is a groove shapes, and fender pile (5) passes groove, and fastens between the twice trough rim of groove by rivet grip.