A vertical axis wind turbine

Abstract

The present invention provides a vertical-axis wind turbine, which comprises a vortex impeller and more than two wind scoops; both ends of the vortex impeller are respectively connected with an upper end plate and a lower end plate through bearings, a motor is arranged on the lower end plate, and the lower end of the vortex impeller is connected with the motor through an output shaft; more than two wind scoops are vertically arranged on the circumference of the vortex impeller and are connected with the upper end plate and the lower end plate, an upper wind scoop extending obliquely upward is fixed along the circumference of the upper end plate at the top edge of each wind scoop, and a lower wind scoop extending obliquely downward is fixed along the circumference of the lower end plate at the bottom edge of each wind scoop. Moreover, each adjacent two wind scoops, the corresponding upper wind scoop and lower wind scoop on one of the wind scoops jointly enclose a wind scooping groove, and the bottom of the wind scooping groove is communicated with the chamber where the vortex impeller is located. The present invention can converge the wind within 360° to the vortex impeller, and the energy of the converged wind is more concentrated, so that the wind energy can be collected more efficiently, and the wind energy utilization rate is relatively high.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation equipment, and more particularly, to a vertical-axis wind turbine generator. Background Art

[0002] With the development of human society, the consumption of non-renewable resources is increasing day by day. At the same time, along with social problems such as environmental pollution, the greenhouse effect, and carbon peak, the alarm bell of energy depletion has gradually sounded. The demand for finding suitable, renewable, and pollution-free energy is becoming increasingly strong. Wind energy is an energy source that is extremely easy to obtain, minimally polluting, and completely renewable in nature. Therefore, using wind energy as one of the renewable energy sources to cope with the energy crisis is the consensus of mankind in the 21st century.

[0003] A wind turbine generator is a device that converts wind energy into electrical energy, mainly composed of blades, a generator, mechanical components, and electrical components. Currently, a vertical-axis wind turbine generator needs to set the wind-catching blades in a space at a certain height to more easily obtain wind energy. Moreover, during operation, the deflection ability of the blades is limited, the deflection efficiency is low, it cannot adapt to changing wind directions, and the wind energy cannot be efficiently utilized, resulting in a low power generation efficiency.

[0004] Therefore, there is an urgent need for a vertical-axis wind turbine generator that is suitable for low-lying areas and can efficiently convert wind energy into electrical energy. Summary of the Invention

[0005] The purpose of the present invention is to provide a vertical-axis wind turbine generator that is suitable for low-lying areas and can efficiently convert wind energy into electrical energy to solve the problems pointed out in the background art.

[0006] The embodiments of the present invention are implemented through the following technical solutions: A vertical-axis wind turbine generator includes a vortex impeller and two or more wind-catching plates.

[0007] Both ends of the vortex impeller are respectively connected with an upper end plate and a lower end plate through bearings. A motor is arranged on the lower end plate, and the lower end of the vortex impeller is connected to the motor through an output shaft.

[0008] Two or more of the wind-catching plates are vertically arranged on the circumference of the vortex impeller and are connected to the upper end plate and the lower end plate. At the top edge of each wind-catching plate, an upper wind-catching plate extending obliquely upward is fixed along the circumference of the upper end plate, and at the bottom edge, a lower wind-catching plate extending obliquely downward is fixed along the circumference of the lower end plate. Moreover, every two adjacent wind-catching plates, together with the corresponding upper wind-catching plate and lower wind-catching plate on one of the wind-catching plates, jointly enclose a wind-catching groove, and the bottom of the wind-catching groove is communicated with the chamber where the vortex impeller is located.

[0009] Further, a first support rod is provided between the top edges / bottom edges of every two adjacent wind-catching plates, and the first support rod is hinged to the upper end plate / lower end plate.

[0010] Further, the first support rod is a multi-stage telescopic rod, and the telescopic rods at all levels are fixed by lock nuts.

[0011] Further, a pull rope is connected to the upper endpoint of the first support rod provided at the top edge of the wind-catching plate.

[0012] Further, the wind-catching plate, the upper wind-catching plate, and the lower wind-catching plate are made of flexible materials.

[0013] Further, the output shaft is connected to the motor through a coupling, and the coupling is arranged below the lower end plate.

[0014] Further, the bearings are respectively installed on the lower end surface of the upper end plate and the upper end surface of the lower end plate.

[0015] Further, a frame is vertically arranged around the outer periphery of the eddy current wind wheel between the upper end plate and the lower end plate, and the frame is composed of several second support rods.

[0016] Further, the number of the second support rods corresponds to that of the wind-catching plates, and they are respectively located on both sides of the bottom of the wind-catching groove.

[0017] Further, it further includes at least one of the following:

[0018] The wind-catching plate, the upper wind-catching plate, and the lower wind-catching plate are of an integrally formed structure;

[0019] The wind-catching plate is smaller at the top and larger at the bottom, and its shape is polygonal;

[0020] The front ends of the upper wind-catching plate and the lower wind-catching plate are groove-shaped ends, and the cross-sectional shape is a "U"-shaped groove;

[0021] When the generator is in a side view state, the wind-catching groove is trapezoidal with a smaller top and a larger bottom.

[0022] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects: Through the setting of the wind-catching plate, the wind energy within a 360° range can be diverted and concentrated onto the intermediate eddy current impeller. After the wind is concentrated, the wind energy will be more concentrated than the wind in the natural state and have a higher wind speed. As a result, the axial-flow impeller in the middle of the generator can obtain enhanced wind energy to drive its rotation. This generator can collect wind energy highly efficiently and has a high wind energy utilization rate; the generator is fixed on the installation surface by using telescopic rods and stay ropes, making the applicable surface of the generator wider; at the same time, the fixation of the stay ropes and the telescopic rods forms a strong framework. When the wind energy is too saturated, after the wind energy enters the eddy current impeller through the wind-catching groove for power generation, the remaining wind energy can be directly discharged, so the generator will not be damaged; the generator uses telescopic rods and a flexible wind-catching plate. During transportation, by loosening the stay ropes, retracting the telescopic rods and attaching them to the periphery of the frame, the volume of the entire generator can be reduced, making it more convenient to carry. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the vertical-axis wind turbine provided in Embodiment 1 of the present invention;

[0024] Figure 2 It is a schematic structural diagram of the eddy current impeller provided in Embodiment 1 of the present invention;

[0025] Figure 3 It is a schematic structural diagram of the wind-catching plate, upper wind-catching plate, and lower wind-catching plate provided in Embodiment 1 of the present invention;

[0026] Figure 4 It is a side view of the wind-catching groove provided in Embodiment 1 of the present invention;

[0027] Figure 5 It is a schematic diagram of the lower end plate provided in Embodiment 1 of the present invention;

[0028] Reference Signs: 1 - Eddy current impeller, 2 - Wind-catching plate, 3 - Bearing, 4 - Upper end plate, 5 - Lower end plate, 6 - Motor, 7 - Output shaft, 8 - Upper wind-catching plate, 9 - Lower wind-catching plate, 10 - Wind-catching groove, 11 - First support rod, 12 - Locking nut, 13 - Coupling, 14 - Second support rod, 15 - Grooved end. Detailed Embodiments

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0030] Embodiment 1

[0031] An embodiment of the present application provides a vertical axis wind turbine. The structural schematic diagram of the vertical axis wind turbine is as follows Figure 1 shown, including: a vortex impeller 1, a motor 6, and two or more wind scoops 2; the lower end of the vortex impeller 1 is connected to the motor 6 through an output shaft 7, and two or more wind scoops 2 are evenly arranged on the outer peripheral surface of the vortex impeller 1 along the circumferential direction.

[0032] Specifically referring to Figure 2 , the vortex impeller 1 includes multiple groups of blades, and the multiple groups of blades are coaxially arranged to form a cylindrical structure; the upper end of the vortex impeller 1 is installed on the lower end surface of the upper end plate 4 through a bearing 3, and the lower end is installed on the upper end surface of the lower end plate 5 through a bearing 3. Among them, holes are provided on both the upper end plate 4 and the upper end plate 4, and the bearing 3 is fixedly connected to the upper end plate 4 / the lower end plate 5 through positioning bolts. It should be noted that the specific fixing method of the bearing 3 is not limited in this embodiment. For example, it can also be fixed to the upper end plate 4 / the lower end plate 5 by welding. Therefore, the embodiments of the present application are not limited thereto.

[0033] Specifically referring to Figure 5 , in an embodiment of the present application, the motor 6 is arranged below the lower end plate 5. The lower end of the vortex impeller 1 passes through a bearing 3 fixed on the lower end plate 5 through an output shaft 7, and then is connected to the motor 6 through a coupling 13 arranged below the lower end plate 5, and the external wiring is reserved on the motor 6. With the above arrangement, the vortex impeller 1 rotates under the drive of wind energy, and then drives the motor 6 to work through the coupling 13, thereby generating electric energy.

[0034] In an embodiment of the present application, two or more of the wind scoops 2 are vertically arranged on the circumference of the vortex impeller 1 and are connected to the upper end plate 4 and the lower end plate 5; it should be noted that the specific arrangement method of the wind scoops 2 is not limited in this embodiment. For example, it can also be arranged to be spirally arranged along the circumference of the vortex impeller 1. Therefore, the embodiments of the present application are not limited thereto.

[0035] The following uses specific embodiments to detail the technical solution of the present application and how the technical solution of the present application solves the technical problems in the background technology;

[0036] Specifically referring to Figure 3 , in this embodiment, the number of the wind scoops 2 is 3. The top edge of each wind scoop 2 is fixedly provided with an upper wind scoop 8 extending obliquely upward along the circumference of the upper end plate 4, and the bottom edge is fixedly provided with a lower wind scoop 9 extending obliquely downward along the circumference of the lower end plate 5. And every two adjacent wind scoops 2, together with the corresponding upper wind scoop 8 and lower wind scoop 9 on one of the wind scoops 2, jointly enclose a wind scooping groove 10; specifically referring to Figure 4, the bottom of the wind scoop 10 is in communication with the chamber where the eddy current impeller 1 is located. By providing the wind deflector 2, the wind energy within a 360° range can be diverted and concentrated onto the middle eddy current impeller 1. After the wind is concentrated, the energy of the wind will be more concentrated than in the natural state, and it will have a higher wind speed. As a result, the axial flow impeller in the middle of the generator can obtain enhanced wind energy to drive its rotation. This generator can collect wind energy more efficiently and has a higher wind energy utilization rate. In another case, when the natural wind force is small, the wind deflector 2 can assist in wind energy aggregation, enabling the generator to generate electricity at a lower wind speed, greatly increasing the power generation of the generator.

[0037] In an embodiment of the present application, a first support rod 11 is provided between the top edges / bottom edges of every two adjacent wind deflectors 2, and the first support rod 11 is hinged to the upper end plate 4 / lower end plate 5. Preferably, the first support rod 11 is a multi-stage telescopic rod, and each stage of the telescopic rod is fixed by a locking nut 12; through the locking nut 12, the telescopic rod can be changed to any length within a certain stroke to adapt to installation surfaces with different flatness. Corresponding to the number of wind deflectors 2, this embodiment includes a total of 3 upper first support rods 11 and 3 lower first support rods 11. Among them, a pull rope is connected to the upper end point of the upper first support rod 11. The telescopic rod and the pull rope are used to fix the generator on the installation surface, making the applicable surface of the generator wider; at the same time, the fixation of the pull rope and the telescopic rod forms a strong framework. When the wind energy is too saturated, after the wind energy enters the eddy current impeller 1 through the wind scoop 10 for power generation, the remaining wind energy can be directly discharged, so the generator will not be damaged.

[0038] In an embodiment of the present application, the wind deflector 2, the upper wind deflector 8, and the lower wind deflector 9 are made of flexible materials with a relatively low ventilation rate, and can be repeatedly folded and unfolded, facilitating quick installation and storage. The generator uses telescopic rods and flexible wind deflectors 2. During transportation, by loosening the pull rope, retracting the telescopic rods, and attaching them to the periphery of the frame, the volume of the entire generator can be reduced, making it more convenient to carry.

[0039] In an embodiment of the present application, a frame is vertically surrounded outside the eddy current wind wheel between the upper end plate 4 and the lower end plate 5, and the frame is composed of several second support rods 14. The number of the second support rods 14 corresponds to that of the wind deflectors 2, both being 3; the second support rods 14 in this embodiment are round tubes. As can be seen from the figure, the round tubes are respectively located on both sides of the bottom of the wind scoop 10, playing a role in reinforcement.

[0040] In one embodiment of the present application, the air vent plate 2, the upper air vent plate 8 and the lower air vent plate 9 are an integrally formed structure, which is made by bending a flexible plate; when the generator is viewed from the side, the air vent groove 10 is a trapezoidal shape that is small at the top and large at the bottom; the shape of the air vent plate 2 is a polygonal structure that is small at the top and large at the bottom; the front ends of the upper air vent plate 8 and the lower air vent plate 9 are groove-shaped ends 15, and the cross-sectional shape is a "U"-shaped groove. When installed, the groove-shaped end 15 is fitted to the end face of the upper end plate 4 / lower end plate 5 and is fixed thereto by bolts or the like.

[0041] The following is a brief description of the method of using the generator, which is as follows: the generator is initially in a retracted state, with the wind board 2, the upper wind board 8, the lower wind board 9 and the telescopic rod retracted to the outer edge of the frame; first, open the 6 telescopic rods in total from top to bottom, and the main frame of the generator is formed. Place the generator on the installation plane through the 3 telescopic rods at the bottom, find a suitable location to fix the guy wire, and fix it with the guy wire. Now the generator is installed, and then connect the load that needs to be powered to the reserved external wiring of the motor 6 to generate electricity through wind energy.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vertical axis wind turbine, characterized in that, It includes a vortex impeller (1) and more than two wind scoops (2). The wind scoops (2) are smaller at the top and larger at the bottom, and their shape is polygonal. Both ends of the vortex impeller (1) are respectively connected with an upper end plate (4) and a lower end plate (5) through bearings (3). A motor (6) is arranged on the lower end plate (5), and the lower end of the vortex impeller (1) is connected with the motor (6) through an output shaft (7). More than two of the wind scoops (2) are vertically arranged on the circumference of the vortex impeller (1) and are connected with the upper end plate (4) and the lower end plate (5). At the top edge of each wind scoop (2), an upper wind scoop (8) extending obliquely upward is fixed along the circumference of the upper end plate (4), and at the bottom edge, a lower wind scoop (9) extending obliquely downward is fixed along the circumference of the lower end plate (5). Moreover, each adjacent two wind scoops (2), the corresponding upper wind scoop (8) and lower wind scoop (9) on one of the wind scoops (2) jointly enclose a wind scooping groove (10). The wind scoops (2), the upper wind scoops (8) and the lower wind scoops (9) are of an integrally formed structure and are made of a flexible material. The bottom of the wind scooping groove (10) is communicated with the chamber where the vortex impeller (1) is located; between the top edges / bottom edges of each adjacent two wind scoops (2), a first support rod (11) is arranged, and the first support rod (11) is hinged with the upper end plate (4) / lower end plate (5); the first support rod (11) is a multi-stage telescopic rod, and between each stage of telescopic rods is fixed by a locking nut (12). The telescopic rod passes through the locking nut (12), so that the telescopic rod can become any length within a certain stroke.

2. The vertical-axis wind turbine according to claim 1, characterized in that, A pull rope is connected to the upper end point of the first support rod (11) arranged at the top edge of the wind scoop (2).

3. The vertical-axis wind turbine according to claim 1, wherein The output shaft (7) is connected with the motor (6) through a coupling (13), and among them, the coupling (13) is arranged below the lower end plate (5).

4. The vertical axis wind turbine according to claim 1, characterized in that, The bearings (3) are respectively installed on the lower end face of the upper end plate (4) and the upper end face of the lower end plate (5).

5. The vertical-axis wind turbine according to claim 1, wherein, A frame is vertically and circumferentially arranged around the outer periphery of the vortex wind wheel between the upper end plate (4) and the lower end plate (5), and the frame is composed of several second support rods (14).

6. The vertical-axis wind turbine according to claim 5, characterized in that, The number of the second support rods (14) corresponds to that of the wind scoops (2), and they are respectively located on both sides of the bottom of the wind scooping groove (10).

7. The vertical-axis wind turbine according to any one of claims 1 to 6, characterized in that, It further includes at least one of the following: The front ends of the upper wind scoops (8) and the lower wind scoops (9) are groove-shaped ends (15), and the cross-sectional shape is in a "U"-shaped groove. When viewed from the side, the wind scooping groove (10) is in a trapezoid shape that is smaller at the top and larger at the bottom.

Images