TWI720835B - Wind power generator - Google Patents

Abstract

A wind power generator is provided to overcome the problem of the conventional wind power generator damaged by the instantly strong wind. The wind power generator includes at least three wind-guide rollers and a drive bracket rotatably combined with a base. Each of the three wind- guide rollers has a top cover and a bottom plate respectively located on the top surface and the bottom surface of each wind-guide roller. Several upright blades are located at the side of each three wind-guide rollers. The two ends of each upright blade are respectively connected to the top cover and the bottom plate. Each of the top cover and the bottom plate has a pivot portion. The drive bracket has a shaft and several rotating arms. The drive bracket is radially surrounded by the several rotating arms. The pivot portion of each three wind-guide rollers are respectively connected to the several rotating arms.

Description

Wind power plant

The invention relates to a wind kinetic energy conversion unit, in particular to a wind power generation device capable of resisting instantaneous strong wind damage.

The conventional wind power generation device relies on natural wind to drive the fan blades, so that the rotation of the fan blades is contributed to the generator, and the wind energy can be converted into electric energy to facilitate the storage or transmission of energy to meet the energy demand in life. However, the wind force in nature is unstable and uncontrollable. When the wind is weakened and is not enough to propel the fan blades, the generator stops outputting power; when the wind increases to exceed the structural strength of the fan blade or the load of the generator, the fan blade may be caused. Problems such as reduced service life or damage to the generator circuit due to overheating.

The conventional wind power generation device overcomes the problem of wind instability by adding a gearbox. The gearbox can increase the speed when the kinetic energy of the wind is insufficient to prevent the generator from shutting down, and reduce the operating efficiency of the generator when the kinetic energy increases sharply to avoid generating Motor overload. However, the conversion and transmission of the energy system through the gearbox causes additional energy consumption. Moreover, the gearbox can only protect the generator, but cannot reduce the instantaneous wind pressure on the fan blades.

In view of this, it is indeed necessary to improve the conventional wind power generation device.

In order to solve the above-mentioned problems, the purpose of the present invention is to provide a wind power generation device, which can In order to resist the strong wind from disturbing the power generation process.

The second objective of the present invention is to provide a wind power generation device that can improve the efficiency of kinetic energy conversion to electrical energy.

Another object of the present invention is to provide a wind power generation device that can improve rotation balance and reduce energy loss.

Another object of the present invention is to provide a wind power generation device that is convenient to operate and suitable for different working environments.

The directionality described in the full text of the present invention or its similar terms, such as "upper (top)", "lower (bottom)", "inner", "outer", "side", etc., mainly refer to the directions of the attached drawings, each Directionality or similar terms are only used to assist in describing and understanding the embodiments of the present invention, and are not used to limit the present invention.

The elements and components described in the full text of the present invention use the quantifiers "one" or "one" for convenience and to provide the general meaning of the scope of the present invention; in the present invention, it should be construed as including one or at least one, and single The concept of also includes the plural, unless it clearly implies other meanings.

The wind power generation device of the present invention includes: at least three wind guide rollers, each of the wind guide rollers has a top cover and a chassis located on the upper and lower bottom surfaces of each wind guide roller, and a plurality of upright blades are located on each of the wind guide rollers. On the side of the wind guide drum, the two ends of each vertical blade are respectively connected to the top cover and the chassis. The top cover and the chassis respectively have a pivoting part. Each wind guide drum is penetrated by an axis, and the axis passes through the two The center of the pivoting part; a transmission bracket with a main shaft and several rotating arms, the several rotating arms are radially arranged on the main shaft, and the pivoting parts of the several wind guide drums are respectively connected to the several rotating arms ; And a fixed seat, the main shaft of the transmission bracket is rotatably coupled to the fixed seat.

Accordingly, the wind power generation device of the present invention uses the dispersed guide wind of the plurality of wind guide drums located on the outer side, and the rotation of each wind guide drum drives the inner main shaft to rotate and convert it into Electric energy can prevent strong wind from directly acting on the main shaft and cause structural damage or motor overload. It has the functions of resisting strong wind and prolonging the service life of the generator set.

Wherein, each of the upright blades is perpendicular to the top cover and the bottom plate, and the plurality of upright blades are ringed on the side of each wind guide drum at equal intervals. In this way, the plurality of vertical blades can evenly guide the lateral airflow and maximize the torque, which has the effect of improving the efficiency of kinetic energy conversion.

Wherein, each axis passes through the center of mass of each wind guide drum. In this way, each of the wind guide rollers can rotate around their respective centers of mass, which has the effect of improving the balance of rotation and reducing energy loss.

Wherein, each of the wind guide rollers has a plurality of fan blades, and the plurality of fan blades are radially arranged on the inner ring of the top cover and the chassis, and the plurality of fan blades are connected to the outer peripheral surfaces of the two pivoting parts. In this way, the plurality of vertical blades and the plurality of fan blades can share a structure, which has the effect of reducing the weight of each wind guide drum and increasing the rotation speed.

Among them, the several fan blades form the same angle of attack and are arranged at equal intervals. In this way, the plurality of fan blades can evenly guide the ascending airflow, which has the effect of balancing the rotation of the wind guide drum and reducing vibration.

Wherein, each of the rotating arms has a connecting portion, and the pivoting portion of each of the wind guide rollers is coupled to the connecting portion of each of the rotating arms. In this way, each of the wind guide rollers can be pivotally connected to the fixed position of the rotating arm, which has the functions of convenient installation and balanced rotation of the rotating arm.

Wherein, the plurality of rotating arms are respectively arranged at two ends of the main shaft, and the plurality of rotating arms are arranged radially at an equal included angle with the main shaft as the center. In this way, the centripetal force transmitted by the plurality of rotating arms can act on the main shaft evenly, which has the effect of stabilizing the rotation of the main shaft.

Wherein, the fixed base has a power generation module, the main shaft is combined with a rotor of the power generation module, the rotor can rotate synchronously and coaxially with the main shaft, and the rotor rotates relative to a stator of the power generation module. In this way, the relative rotation of the stator and the rotor can generate electromagnetic induction, which has the effect of converting kinetic energy into electrical energy.

Wherein, the fixing base has a power storage module, and the power storage module is electrically connected to the power generation module. In this way, the power storage module can store surplus power, and has the effect of proper use of power.

Among them, each of the axes is a straight line. In this way, the mass distribution of the plurality of wind guide rollers is easily balanced, and the installation is convenient.

Wherein, each of the axes is inclined outward along the radial direction of the rotation of the main shaft, and each of the axes and the vertical line have a first inclination angle. In this way, the centripetal force generated by each of the wind guide rollers can form an upward component, thereby balancing the axial force borne by the two pivoting parts, and has the effect of stabilizing the rotation process and reducing frictional resistance.

Wherein, each of the axes is inclined outward along the radial direction of the rotation of the main shaft, and each of the axes in the radial direction forms a first inclination angle with the vertical line, and each of the axes is skewed in the tangential direction of the rotation of the main shaft. In the tangential direction, each of the axes and the plumb line sandwich a second inclination angle. In this way, in addition to balancing the pivoting axial force, each of the wind guide drums can also adjust the angle of the windward surface according to the change of the wind direction, which has the effect of improving the power generation efficiency.

Wherein, the angle of the first inclination angle and the second inclination angle is 5 degrees to 45 degrees. In this way, the degree of inclination of the plurality of wind guide rollers can be adjusted according to the mass distribution of the rotating body and the change of the wind direction, which has the effect of being suitable for different environmental conditions.

Wherein, the rotation arms of the transmission bracket are connected to the main shaft in a radially swingable manner, and the connection parts are universal joints. In this way, the inclination angles of the plurality of wind guide rollers can be adjusted in real time, which has the effect of convenient installation and operation.

1: Wind guide drum

11: Top cover

12: Chassis

13: Upright blade

14a, 14b: pivot

15: fan blade

2: Transmission bracket

21: Spindle

22: Rotating arm

23: Connection part

3: fixed seat

L: axis

C: Centripetal force

θ ₁ : the first tilt angle

θ ₂ : second angle of inclination

[Figure 1] A perspective view of the first embodiment of the present invention.

[Figure 2] An enlarged view of a partial structure of the first embodiment of the present invention.

[Figure 3] A cross-sectional view along the line A-A in Figure 2.

[Figure 4] A top view of the operating situation of the first embodiment of the present invention.

[Figure 5] A diagram of the use situation of the present invention.

[Figure 6] A perspective view of the second embodiment of the present invention.

[Figure 7] A side view of the second embodiment of the present invention.

[Figure 8] A perspective view of the third embodiment of the present invention.

[Figure 9] A first angled side view of the third embodiment of the present invention.

[Figure 10] A second angled side view of the third embodiment of the present invention.

In order to make the above and other objectives, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings:

Please refer to Figure 1, which is the first embodiment of the wind power generation device of the present invention, which includes at least three wind guide drums 1, a transmission bracket 2 and a fixing seat 3, the plurality of wind guide drums 1 are arranged around On the transmission bracket 2, the transmission bracket 2 is rotatably connected to the fixing base 3.

Please refer to Figures 2 and 3, each of the air guide rollers 1 consists of a top cover 11 and a chassis 12 respectively located on the upper and lower bottom surfaces of each of the air guide rollers 1, and several upright blades 13 are located on each of the On the side of the wind guide drum 1, the two ends of each vertical blade 13 are respectively connected to the top cover 11 and the chassis 12, and each vertical blade 13 is preferably perpendicular to the top cover 11 and the chassis 12, and the plurality of vertical blades 13 are The blades 13 are preferably arranged at equal intervals to guide the lateral airflow into the gaps between the plurality of vertical blades 13, and the plurality of vertical blades 13 are pushed by the airflow to rotate each of the wind guide drums 1; The wind guide drum 1 has two pivoting portions 14a, 14b, the two pivoting portions 14a, 14b are respectively located on the top cover 11 and the chassis 12, and the centers of the two pivoting portions 14a, 14b are located on an axis L, And each axis L preferably passes through the center of mass of each wind guide drum 1, so that each wind guide drum 1 can pass through the The two pivoting parts 14a, 14b make balanced rotation. In this embodiment, the two pivoting parts 14a and 14b are two bearings, and each axis L is a straight line.

In addition, each of the air guide drums 1 may also have a plurality of fan blades 15, the plurality of fan blades 15 are radially arranged on the inner ring of the top cover 11 and the chassis 12, and the plurality of fan blades 15 are connected to the two pivots. The outer peripheral surfaces of the turning parts 14a and 14b. In addition, the plurality of fan blades 15 are preferably arranged at the same angle of attack and equal intervals, which can guide the ascending airflow through the plurality of fan blades 15 to pass through each of the wind guide drums 1, and the plurality of fan blades are pushed by the airflow. 15. It has the function of driving each wind guide drum 1 to rotate.

Please refer to Figures 1 and 4, the transmission bracket 2 has a main shaft 21 as the center of rotation, the transmission bracket 2 has a plurality of rotating arms 22, the plurality of rotating arms 22 can be used for the plurality of wind guide drum 1 The pivoting portions 14a, 14b are provided so that each of the wind guide drum 1 can be pivotally connected to the rotating arm 22 by the pivoting portions 14a, 14b. Preferably, the plurality of rotating arms 22 are respectively provided at both ends of the main shaft 21 , And the plurality of rotating arms 22 are preferably arranged in radial directions with equal included angles centered on the main shaft 21. In this embodiment, each of the rotating arms 22 has a connecting portion 23 so that each of the air guide drums 1 The two pivoting parts 14a and 14b are respectively coupled to the two connecting parts 23 of the two rotating arms 22.

Please refer to Figure 1, the transmission bracket 2 is rotatably coupled to the fixed base 3 by the main shaft 21, the fixed base 3 may have a power generation module, and the main shaft 21 is coupled to the rotor of the power generation module. The rotor can rotate synchronously and coaxially with the main shaft 21, and the rotor can rotate relative to the stator of the power generation module to generate electricity. In addition, the fixed base 3 may also include a power storage module which is electrically connected to the power generation module. The power generated by the power generation module can be stored in the power storage module. The electric energy is redistributed and properly used. The related technologies of power generation and storage are familiar to those skilled in the art, and will not be repeated here.

Please refer to Figure 4, according to the aforementioned structure, each of the wind guide rollers 1 rotates around the two connecting parts 23 of the pair of the two rotating arms 22, and each of the wind guide rollers 1 is based on the main shaft 21. For the center to revolve, where the direction of the rotation angular velocity vector of the rotation is perpendicular to the rotation On the plane of rotation, and the direction of the speed vector of revolution is the tangent direction of revolution. According to the Magnus Effect, when the angular velocity vector of an object's rotation does not coincide with the speed vector of the object's movement, a horizontal direction will be generated. A force acts on the object, and the direction of the lateral force is perpendicular to the angular velocity vector and the velocity vector. As shown in Fig. 4, the lateral force generated by each of the wind guide rollers 1 is a centripetal force C, which is equal to The direction is extending from the center of each wind guide drum 1 to the main shaft 21. The centripetal force C is the force required for the circular movement of each wind guide drum 1 around the main shaft 21. The strength of the centripetal force C is proportional to the The angular velocity vector and the velocity vector. Therefore, when the wind continues to drive the plurality of wind guide drums 1 to rotate, the plurality of wind guide drums 1 can maintain revolution and drive the main shaft 21 to rotate and generate electricity through the rotation arms 22. The greater the rotation speed of the wind guide drum 1 is, the greater the centripetal force C provided, so that the main shaft 21 can obtain power to increase the rotation speed and increase the power generation.

The wind power generation device of the present invention may also have a gear box (not shown in the figure), and the gear box can limit the rotation speed of the main shaft 21 to prevent the power generation module from being damaged due to overload. Thereby, the revolution speed of each wind guide drum 1 around the main shaft 21 is reduced, which can cause the reduction of the tangential velocity vector of each wind guide drum 1 to reduce the centripetal force C, and the centripetal forces C can pass through the transmission bracket 2. The plurality of rotating arms 22 cancel each other out to avoid damage to the structure of the transmission bracket 2 during the deceleration process, and achieve the effect of resisting strong wind. In addition, the two pivoting parts 14a, 14b of each wind guide drum 1 are not connected to the power generation module. Therefore, the rotation speed of each wind guide drum 1 does not directly affect the power generation efficiency, even if each wind guide drum 1 is Accelerating rotation under strong winds will not cause power generation overload.

Please refer to Figure 5, the wind power generation device of the present invention can be installed on a street lamp. The several wind guide rollers 1 can receive 360-degree horizontal airflow for rotation, and can also use the radiant heat of the road at night. The updraft assists the operation, and the power generated by the drive can be immediately used for night lighting.

Please refer to Figures 6 and 7, which is the second embodiment of the wind power generation device of the present invention. Each of the axes L passing through the two pivoting portions 14a, 14b of each of the wind guide drums 1 is a diameter along the revolution. Incline outwards in the direction so that each axis L and the vertical line sandwich a first inclination angle θ ₁ , and the direction of the centripetal force C rises and intersects the first inclination angle θ ₁ with the horizontal line, so that the centripetal force C is upward The force component system can balance the axial force borne by the two pivoting parts 14a, 14b, avoid axial vibration at the position of the two pivoting parts 14a, 14b, and make the rotation process of each wind guide drum 1 stable and reduce Friction resistance can increase the speed to improve the efficiency of power generation. In this embodiment, the angle of the first inclination angle θ ₁ may be 5 degrees to 45 degrees.

Please refer to Figures 8 to 10, which is the third embodiment of the wind power generation device of the present invention. Each axis L passing through each of the wind guide drums 1 is inclined outward in the radial direction of revolution, and each of the The axis L can also be skewed along the tangential direction of the revolution. As shown in Figure 9, each axis L in the radial direction and the vertical line sandwich the first inclination angle θ ₁ , and, as shown in Figure 10, in the tangent Each direction of the axis L and the vertical line clamp a second inclination angle θ ₂ , the rotation arms 22 of the transmission bracket 2 are connected to the main shaft 21 so that the rotation arms 22 can rotate The fan-shaped area on the plane is deflected, and the connecting portions 23 may be universal joints, so that the angle of the second inclination angle θ ₂ of each of the air guide drums 1 can be operated by the deflection of each of the rotating arms 22 Adjustment. In this way, the plurality of wind guide drums 1 can adjust the angle of the windward surface according to the change of the wind direction, so as to achieve the effect of effectively using the wind and improving the efficiency of power generation. In this embodiment, the angle between the first inclination angle θ ₁ and the second inclination angle θ ₂ may be 5 degrees to 45 degrees.

In summary, the wind power generation device of the present invention uses the dispersed guide wind of the plurality of wind guide drums located on the outer side, and the rotation of each wind guide drum drives the inner main shaft to rotate and convert it into electric energy. Avoid strong wind directly acting on the main shaft and cause structural damage or motor overload. It has the functions of resisting strong wind and prolonging the service life of the generator set.

Although the present invention has been disclosed using the above-mentioned preferred embodiments, it is not intended to limit the present invention. Invention, any person who is familiar with this technique does not deviate from the spirit and scope of the present invention, and makes various changes and modifications relative to the above-mentioned embodiments still belong to the technical scope protected by the present invention. Therefore, the scope of protection of the present invention shall be regarded as the attached application. Those defined by the scope of the patent shall prevail.

1: Wind guide drum

11: Top cover

12: Chassis

13: Upright blade

14a, 14b: pivot

2: Transmission bracket

21: Spindle

22: Rotating arm

23: Connection part

3: fixed seat

Claims (15)

A wind power generation device, comprising: at least three wind guide rollers, each of the wind guide rollers has a top cover and a chassis respectively located on the upper and lower bottom surfaces of each wind guide roller, and a plurality of upright blades are located on each of the wind guide rollers. On the side of the drum, the two ends of each vertical blade are respectively connected to the top cover and the bottom plate, the top cover and the bottom plate respectively have a pivoting part, each of the wind guide rollers is penetrated by an axis, and the axis passes through the two pivots The center of the part; a transmission bracket with a main shaft and several rotating arms, the several rotating arms are radially arranged on the main shaft, and the pivoting parts of the several air guide drums are respectively connected to the several rotating arms; and A fixed seat, and the main shaft of the transmission bracket is rotatably coupled to the fixed seat. The wind power generation device of claim 1, wherein each of the upright blades is perpendicular to the top cover and the chassis, and the plurality of upright blades are arranged on the side of each wind guide drum at equal intervals. The wind power generation device of claim 1, wherein each axis passes through the center of mass of each wind guide drum. For example, the wind power generation device of claim 1, wherein each of the wind guide drum has a plurality of fan blades, the plurality of fan blades are arranged in the inner ring of the top cover and the chassis, and the plurality of fan blades are connected to the two The outer peripheral surface of the pivot. Such as the wind power generation device of claim 4, wherein the plurality of fan blades form the same angle of attack and are arranged at equal intervals. The wind power generation device of claim 1, wherein each of the rotating arms has a connecting portion, and the pivoting portion of each of the wind guide drums is coupled to the connecting portion of each of the rotating arms. For example, the wind power generation device of claim 1, wherein the plurality of rotating arms are respectively arranged at two ends of the main shaft, and the plurality of rotating arms are arranged in radial directions with equal included angles centered on the main shaft. The wind power generation device of claim 1, wherein the fixed base has a power generation module, the main shaft is coupled to a rotor of the power generation module, and the rotor can be synchronized and coaxially rotated with the main shaft Rotate, the rotor rotates relative to a stator of the power generation module. For example, the wind power generation device of claim 8, wherein the fixing base has a power storage module, and the power storage module is electrically connected to the power generation module. The wind power generation device of any one of claims 1 to 9, wherein each axis is a straight line. The wind power generation device according to any one of claims 1 to 9, wherein each of the axes is inclined outward along the radial direction of the rotation of the main shaft, and each of the axes and the vertical line have a first inclination angle. Such as the wind power generation device of claim 11, wherein the angle of the first inclination angle is 5 degrees to 45 degrees. The wind power generation device according to any one of claims 1 to 9, wherein each axis is inclined outward along the radial direction of the main shaft rotation, and each axis and the vertical line in the radial direction have a first inclination angle, Each of the axes is skewed along the tangential direction of the rotation of the main shaft, and each of the axes and the plumb line in the tangential direction have a second inclination angle. For example, the wind power generation device of claim 13, wherein the plurality of rotating arms of the transmission bracket are connected to the main shaft in a radially swingable manner, and each of the rotating arms is combined with the pivoting part of each wind guide drum by a connecting part, And the several connecting parts are universal joints. Such as the wind power generation device of claim 13, wherein the angles of the first inclination angle and the second inclination angle are 5 degrees to 45 degrees.

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