TWM458460U - Fan blade structure of wind power generator - Google Patents

Description

Wind turbine blade structure

The present invention relates to a blade structure of a wind power generator, and more particularly to a blade structure of a wind power generator that is not restricted by the wind direction and that can rotate the blade with a small amount of wind to improve the utility of the wind power generator.

Because modern people's life is full of various electrical appliances, electrical energy is already an indispensable energy source for modern people. However, in recent years, international energy prices have risen, energy crisis, climate warming and environmental awareness have risen. Driven the development of wind turbines.

Wind turbines are roughly divided into two types: horizontal axis wind turbines and vertical axis wind turbines. Regardless of the type of wind turbines, wind turbines need to be pivoted on the wind turbines to generate kinetic energy by using wind blades. Drive the generator to generate electricity for use.

The above-mentioned wind turbine related patents are patents such as Taiwan Patent Publication No. M347472, No. M343070, and No. M327416. It is known from the above-mentioned patents that the structure of a conventional wind power generator generally has a base shaft and a plurality of blades pivotally connected to the top end of the base shaft, and the blades are used to drive the rotation of the base shaft to generate electric power. And most of the blades can only rotate relative to the base axis, and they cannot change the angle themselves, so the blades themselves cannot provide the best wind angle. Relatively more wind is required to cause the blades to rotate, that is, in the breeze state, the blades cannot be rotated, and thus power generation cannot be performed, and many conventional wind turbines need to be equipped with power control or circuit control components. The wind turbine is costly and easily damaged, and the utility of the wind turbine is relatively reduced.

Therefore, how to create a blade structure of a wind power generator, so that the area of the wind receiving surface of the blade can greatly increase the torsion force during rotation, and the small area of the windward surface of the blade can reduce the resistance, so that even if the air volume is small, the blade can be rotated. And not subject to wind direction restrictions can promote the blade Rotate to increase the efficiency of the wind turbine.

The purpose of the present invention is to provide a blade structure of a wind power generator, which can change the angle of the wind direction in accordance with the wind direction when the blade rotates, and increase the torque and the rotation speed, and at the same time reduce the resistance during rotation, even if the breeze can blow the blade to rotate, and The blades can be blown without being restricted by the wind direction to increase the efficiency of the wind turbine.

The purpose of the present invention is to provide a blade structure of a wind power generator, which has a simple overall structure, does not need to use any electronic components, and can be rotated under a breeze, so that the utility can be improved.

To achieve the above object, the present invention provides a blade structure for a wind power generator comprising a blade frame, at least two links, and at least four blades. The center of the blade frame is connected to a rotating shaft to rotate the blade frame around the rotating shaft. At least two connecting rods are connected to the blade frame, and are disposed at a central position of the blade frame and above the rotating shaft. The four blades are pivotally connected to the blade frame by an eccentric shaft, so that the blade is disposed in the blade frame in an eccentric manner, and the four blades are respectively connected to the two ends of the two links, so that the two are located The blades of the ends are connected to each other, so that the two blades of the two ends can be respectively operated in a horizontal state and a vertical state when rotating.

In a preferred embodiment, the blade frame is provided with a muffler abutting portion at the four blade positions to significantly reduce the noise generated when the blade is rotated, and to make the blade rotate more quietly. The connecting rod is composed of a conduit, a guiding rod and a connecting arm. The guiding rod can slide relative to the guiding rod. One end of the connecting rod is connected with the connecting arm, and the other end of the connecting arm is connected with the blade to drive the two ends of the two ends to be horizontal and vertical. The four blades are respectively disposed at the outermost sides in the blade frame, and the shapes of the blades are rectangular.

Compared with the prior art, the blade structure of the wind generator of the present invention can be rotated without being restricted by the wind direction, the wind speed and the air volume, and the blades are horizontal and vertical, respectively, when a group of blades are simultaneously subjected to the wind, the level The wind receiving area of the blade is large, and at this time, the wind receiving area of the vertical blade is small, so the thrust generated by the horizontal blade is large, and the torsion force when the blade rotates can be improved, and the small windward surface area of the blade can reduce the resistance, so that the air volume even if Very small can also drive the blades to rotate, which in turn increases the efficiency of the wind turbine. Moreover, the overall structure is simple, no need to match power control or other sophisticated parts, so it can reduce manufacturing costs and extend the overall service life.

1‧‧‧Wind generator blade structure

11‧‧‧ blade frame

110‧‧‧ shaft

111‧‧‧Mute abutment

12‧‧‧ Connecting rod

121‧‧‧guides

122‧‧‧ catheter

123‧‧‧Link arm

13‧‧‧ leaves

131‧‧‧Eccentric shaft

1 is a perspective view of a first preferred embodiment of the present wind turbine.

2 is a top plan view of a first preferred embodiment of the present wind turbine.

FIG. 3 is a schematic top view of the first preferred embodiment of the present wind generator.

4 is a perspective view of a second preferred embodiment of the wind turbine of the present invention.

Figure 5 is a top plan view of a second preferred embodiment of the wind generator of the present invention

Figure 6 is a perspective view of another preferred embodiment of the wind generator of the present invention.

The embodiments of the present invention are described below by way of specific embodiments, and those skilled in the art can readily appreciate other advantages and effects of the present invention from the disclosure herein.

Hereinafter, an embodiment of the present creation will be described with reference to the drawings, and it should be noted that the following figure The formula is a simplified schematic diagram, and only the basic concept of the creation is illustrated in a schematic manner, and only the structure related to the creation is illustrated in the drawing, instead of drawing according to the number, shape and size of the components in actual implementation, the actual implementation The type, quantity and proportion of each component are not limited to the illustrations, and can be changed according to the actual design needs.

First, please refer to FIG. 1 and FIG. 2 , which are schematic perspective views and a top view of a first preferred embodiment of the wind turbine. As shown, the blade structure 1 of the present wind turbine comprises a blade frame 11, at least two links 12 and at least four blades 13.

The blade frame 11 is centrally connected to a rotating shaft 110 for rotating the blade frame 11 around the rotating shaft 110. The two connecting rods 12 are connected to the blade frame 11 in a crosswise manner, and are disposed at the central position of the blade frame 11 and located at the rotating shaft 110. Above. The four blades 13 are pivotally connected to the blade frame 11 by an eccentric shaft 131 and are rotatable within the blade frame 11, and the four blades 13 are respectively connected to the two ends of the two links 12 to allow the blades at the two ends. 13 are connected to each other so that the two blades 13 of the two ends can be respectively moved in a horizontal state and a vertical state when rotated.

In this embodiment, the wind turbine is rotated in a clockwise direction, the blade frame The frame 11 is generally X-shaped, and one blade 13 can be installed on the outermost side. Therefore, four blades 13 are provided. The four blades 13 are provided with a sound-damping abutting portion 111, which can absorb the rotation of the blade 13. The noise makes the blade 13 quieter when it is rotated, and allows the blade 13 to come into contact with the muffler abutting portion 111 to stop. The connecting rod 12 is composed of a guiding rod 121, a duct 122 and a connecting arm 123. The duct 122 can slide relative to the guiding rod 121. One end of the connecting rod 122 is connected with the connecting arm 123, and the other end of the connecting arm 123 is connected with the blade 13 to drive the two ends. The two blades 13 are in a horizontal state and a vertical state, respectively. The four blades 13 are respectively disposed at the outermost sides in the blade frame 11, and the blades 13 have a rectangular shape. Since the four blades are pivotally connected to the blade frame 11 by an eccentric shaft 131, the portion of the blade 13 having a large area can be blown by the wind to change the overall direction of rotation, that is, the effect of the winder without the need for retrofitting. Chasing the wind.

In addition, in other different embodiments, the blade frame 11 can also be changed in shape, for example, a variable *-type blade frame 11, so that six blades 13 can be provided to lift the torsion of the blade 13, or can be changed to a rice blade. The frame 11 can be provided with eight blades 13 to improve the torsion and rotation speed of the blade 13, so that it can be adjusted or changed according to different requirements, so as to be used in different occasions.

Please refer to FIG. 3 again, which is a schematic plan view of the first preferred embodiment of the wind turbine generator. As shown in the figure, when the wind is blown toward the blade 13 from the downward direction of the figure, the wind receiving surface The blade 13 is horizontal at this time, and at this time, the area of the wind receiving surface is the largest, so that the torsion force can be increased, the rotation speed of the blade 13 is accelerated, and the blade 13 of the windward surface is in a vertical state, and the area of the windward surface is the smallest, so that it is obvious Lowering the resistance also helps to increase the speed. With this structural design, even the breeze can easily drive the rotation of the blade 13, thereby improving the efficiency of the wind turbine. Further, since the blade 13 is eccentrically disposed, when the wind receiving surface is uneven, when the blade 13 having a large wind receiving area is blown by the wind, the clockwise or counterclockwise rotation can be generated (this embodiment). It is rotated clockwise), because the blade 13 can be changed in angle by wind direction or wind force, so the generator can be rotated without being restricted by wind direction or wind force. Moreover, the overall structure is simple, and it is not necessary to be equipped with sophisticated electronic instruments or equipment, so that it is not only low in cost, but also prolongs the service life and improves the overall practicality.

Please refer to FIG. 4 and FIG. 5 again, which is the second best wind generator. A schematic perspective view and a top view of the embodiment. As shown, in the present embodiment, the wind turbine is rotated in a counterclockwise direction. Similarly, when the wind is blown toward the blade 13 from the lower direction of FIG. 4, the blade 13 of the wind receiving surface is horizontal at this time, and at this time, the area of the wind receiving surface is the largest, so that the torque can be increased, the rotation speed of the blade 13 can be accelerated, and The blade 13 on the windward side is in a vertical state, and the area of the windward surface is the smallest, so that the resistance can be significantly reduced, which also contributes to the increase in the rotational speed. With this structural design, even the breeze can easily drive the rotation of the blade 13, thereby improving the efficiency of the wind turbine. Further, since the blade 13 is eccentrically disposed, when the wind receiving surface is uneven, when the blade 13 having a large wind receiving area is blown by the wind, the clockwise or counterclockwise rotation can be generated (this embodiment). It is a counterclockwise rotation), because the blade 13 can be angled by the wind direction or the wind, so the generator can be rotated without being restricted by the wind direction or the wind. Moreover, the overall structure is simple, and it is not necessary to be equipped with sophisticated electronic instruments or equipment, so that it is not only low in cost, but also prolongs the service life and improves the overall practicality.

Finally, please refer to FIG. 6 , which is a perspective view of a third preferred embodiment of the present wind power generator. As shown in the figure, another preferred embodiment of the present invention is shown. In this embodiment, the blade 13 is compared. The former embodiment is large, so that not only can the area of the wind receiving surface become significantly larger, but the area of the windward side does not increase too much, and the windward side is still small, so that the torque can be increased and the blade can be rotated faster. Torque is greater to enhance the performance of wind turbines.

While the foregoing description and drawings have disclosed the preferred embodiments of the present invention, it is to be understood that various modifications, various modifications and substitutions may be used in the preferred embodiments of the present invention without departing from the scope of the appended claims. The spirit and scope of this creative principle. It will be appreciated by those skilled in the art that the present invention can be modified in many forms, structures, arrangements, ratios, materials, components and components. Therefore, the embodiments disclosed herein are to be considered as illustrative of the present invention and are not intended to limit the present invention. The scope of this creation is defined by the scope of the appended patent application and covers its legal equivalents and is not limited to the foregoing description.

1‧‧‧Wind generator blade structure

11‧‧‧ blade frame

110‧‧‧ shaft

111‧‧‧Mute abutment

12‧‧‧ Connecting rod

121‧‧‧guides

122‧‧‧ catheter

123‧‧‧Link arm

13‧‧‧ leaves

131‧‧‧Eccentric shaft

Claims (5)

A blade structure of a wind power generator, comprising: a blade frame, centrally connected to a rotating shaft, so that the blade frame rotates around the rotating shaft; at least two connecting rods are connected to the blade frame and disposed at a central position of the blade frame And being located above the rotating shaft; at least four blades are pivotally connected to the blade frame by an eccentric shaft, so that the blade is disposed in the blade frame in an eccentric manner, and the four blades are respectively connected to the two connecting rods. At the two ends, the blades at the two ends are connected to each other, so that the two blades of the two ends can be horizontally and vertically respectively when rotated. The blade structure of the wind power generator according to claim 1, wherein the blade frame is provided with a muffling abutting portion at a position where the four blades are disposed. The blade structure of the wind power generator according to claim 1, wherein the connecting rod is composed of a duct, a guiding rod and a connecting arm, the duct is slidable relative to the guiding rod, and one end of the duct is connected to the connecting arm, the connecting The other end of the arm is connected to the blade to drive the two blades at the two ends to be in a horizontal state and a vertical state, respectively. The blade structure of the wind power generator of claim 1, wherein the four blades are respectively disposed at an outermost side within the blade frame. The blade structure of a wind power generator according to claim 1, wherein the blade has a rectangular shape.