Half-wind-shielding vertical-axis wind power generation equipment

Abstract

The invention provides half-wind-shielding vertical-axis wind power generation equipment which comprises three power generation single bodies forming a triangular array, every two of the three power generation single bodies are connected through a connecting rod, each power generation single body comprises a bottom column, a fan blade mechanism and a wind shielding mechanism, the bottom columns are fixedly arranged, and stand columns are fixedly arranged on the upper portions of the bottom columns; the fan blade mechanism comprises more than three pairs of fan blade plates, each fan blade plate can rotate around the stand column under the action of wind power, and the fan blade mechanism is in transmission connection with a generator; the wind shielding mechanism is arranged on the periphery of the fan blade mechanism and shields the half side of the windward side of the fan blade mechanism. In the invention, each power generation unit shields one side of the fan blade mechanism through the wind shield, the rotation wind resistance of the other side of the fan blade plate can be reduced, so that the wind power generation efficiency is greatly improved, and the three power generation units are connected in the triangular array, so that the stability of the power generation equipment is improved, and the safety is ensured.

Description

Technical Field

[0001] The present invention generally relates to the field of wind power generation, and in particular to a wind power generation device that can partially shield wind power and ensure a stable posture. Background Art

[0002] At present, large wind turbines on the market are mainly three-blade horizontal axis wind turbines, including direct drive, semi-direct drive, double-fed and other types. The problems are as follows:

[0003] 1. Since the direction of wind blowing is perpendicular to the direction of rotation of the fan blades, it is only a component of the wind that is captured, which is a marginal effect, low efficiency, and a large waste of wind energy.

[0004] 2. The high power of wind turbines means that the blades are getting longer and longer, some of which have reached more than 100 meters in length. The workload in design, manufacturing, transportation and installation is very large. It is not easy for vehicles to turn during transportation, and some drivers accidentally insert the blades through the mountain and damage them.

[0005] 3. The streamlined curved surface shape of the fan blade has high requirements on manufacturing design, high cost and slow production cycle.

[0006] 4. The slender leaf tips are easier to break.

[0007] 5. In addition, the three fan blades need to achieve dynamic balance when rotating. Once a fan blade has a problem, such as ice or partial breakage or other mass changes, the impeller will be unbalanced and cannot work normally.

[0008] 6. Each wind turbine is thin and tall, so it has poor stability.

[0009] Therefore, how to reduce wind resistance, increase the windward surface, significantly improve wind power generation efficiency without increasing the length of the wind blades, and ensure the stability of the power generation equipment is a technical problem that needs to be solved urgently. Summary of the invention

[0010] A main purpose of the present invention is to overcome at least one defect of the above-mentioned prior art and to provide a semi-wind-shielded vertical-axis wind power generation device that can reduce wind resistance, increase the windward surface, greatly improve the wind power generation efficiency without increasing the length of the wind blades, and ensure the stability of the power generation equipment.

[0011] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0012] According to one aspect of the present invention, there is provided a semi-wind-shielded vertical axis wind power generation device, comprising three power generation units forming a triangular array, wherein the three power generation units are connected to each other by connecting rods, and each power generation unit comprises:

[0013] A bottom column, wherein the bottom column is fixedly arranged, and a vertical column is fixedly arranged on the upper part of the bottom column;

[0014] A fan blade mechanism, the fan blade mechanism includes more than three pairs of fan blades, each of the fan blades can rotate around the column under the action of wind force, and the fan blade mechanism is transmission-connected to the generator;

[0015] A wind shielding mechanism is arranged at the periphery of the fan blade mechanism and shields half of the windward surface of the fan blade mechanism.

[0016] According to an embodiment of the present invention, the pillars are stepped structures that gradually become thinner from bottom to top, and the connecting rods are connected to the tops of the pillars.

[0017] According to one embodiment of the present invention, the fan mechanism includes the fan plate and a cross bar, a vertical bar and a fan plate bearing. The fan plate bearing is arranged at the stepped position of the column. The cross bar is rotatably connected to the column through the fan plate bearing. The fan plate and the vertical bar are connected to the cross bar. The lower part of the vertical bar is transmission-connected to the generator.

[0018] According to one embodiment of the present invention, a first outer gear ring is fixedly mounted on the column, a second outer gear ring is mounted above the first outer gear ring, the second outer gear ring is connected to the vertical rod and can rotate around the column, the generator is mounted on the lower part of one side of the first outer gear ring, a gear is mounted on the generator shaft, and the gear is meshed with the second outer gear ring.

[0019] According to an embodiment of the present invention, a thrust bearing is provided between the first outer gear ring and the second outer gear ring.

[0020] According to one embodiment of the present invention, the windshield mechanism includes a windshield frame, a windshield plate and an adjustment mechanism. The windshield frame is rotatably connected to the column, the windshield plate is fixed on the windshield frame, and the adjustment mechanism is connected to the windshield frame to adjust the windward angle of the windshield plate.

[0021] According to one embodiment of the present invention, the adjustment mechanism includes a mounting frame, a driving motor, a transmission gear and the first outer gear ring. The mounting frame is rotatably mounted at the bottom of the column and placed on the upper part of the base column and connected to the wind shield frame. The driving motor is mounted at the lower part of the mounting frame. The transmission gear is mounted at the upper part of the mounting frame, connected to the driving motor, and meshed with the first outer gear ring.

[0022] According to one embodiment of the present invention, the semi-wind-shielded vertical-axis wind power generation equipment also includes a wind speed sensor and a wind direction sensor, and the wind speed sensor and the wind direction sensor are installed on the top of the column, and the adjustment mechanism adjusts the windward angle of the wind shield according to the data obtained by the wind speed sensor and the wind direction sensor.

[0023] According to one embodiment of the present invention, the wind shield is an arc-shaped structure with a cross-section of a quarter circle, which blocks the windward half of the fan mechanism. When the wind speed sensor measures a wind speed exceeding the rated wind speed, the wind shield moves to a windward state with the column as the center line, blocking the fan blades on both sides.

[0024] According to one embodiment of the present invention, each pair of the wind blades are symmetrically arranged about the axis of the column, and the shape of the wind blades is a rearward concave ladle shape or a rearward concave flat plate shape, with the opening on the unobstructed side facing the direction of the incoming wind.

[0025] It can be seen from the above technical solution that the advantages and positive effects of the semi-wind-shielded vertical axis wind power generation equipment of the present invention are:

[0026] In the present invention, each power generation unit shields one side of the wind blade mechanism through the wind shield plate, which can reduce the rotation wind resistance on the other side of the wind blade plate, thereby greatly improving the wind power generation efficiency, and the three power generation units are connected in a triangular array, which improves the stability of the power generation equipment and ensures safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Various objects, features and advantages of the present invention will become more apparent by considering the following detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings are merely exemplary illustrations of the present invention and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always refer to the same or similar parts. Among them:

[0028] Figure 1 It is a schematic diagram of the top view of the structure of the semi-wind-shielded vertical-axis wind power generation equipment of the present invention.

[0029] Figure 2 It is a schematic diagram of the main structure of the semi-wind-shielded vertical-axis wind power generation equipment of the present invention.

[0030] Figure 3 It is a schematic structural diagram of a power generation unit in a semi-wind-shielded vertical-axis wind power generation device of the present invention.

[0031] Figure 4 It is a schematic structural diagram of a wind blade bearing in a semi-wind-shielded vertical-axis wind power generation device of the present invention.

[0032] Figure 5 It is a structural schematic diagram of a windshield bearing in a semi-wind-shielded vertical-axis wind power generation device of the present invention.

[0033] Figure 6 It is a schematic diagram of the structure of the wind blades in the semi-wind-shielded vertical-axis wind power generation equipment of the present invention.

[0034] Figure 7 It is a schematic diagram of the connection structure of the wind blades in the semi-wind-shielded vertical-axis wind power generation equipment of the present invention.

[0035] Figure 8 It is a schematic diagram of the first state of the wind shield in the semi-wind shielding vertical axis wind power generation equipment of the present invention.

[0036] Fig. 9 It is a schematic diagram of the second state of the wind shield in the semi-wind shielding vertical axis wind power generation equipment of the present invention.

[0037] Fig.10 It is a schematic diagram of the third state of the wind shield in the semi-wind shielding vertical axis wind power generation equipment of the present invention.

[0038] Description of the figure number:

[0039] 1. Power generation monomer;

[0040] 11. Bottom column;

[0041] 12. Pillar;

[0042] 13. Wind blade;

[0043] 130. Fan blade bearing;

[0044] 131, horizontal bar;

[0045] 132. Vertical pole;

[0046] 14. Wind shield frame;

[0047] 15. Windshield;

[0048] 16. Mounting frame;

[0049] 17. Windshield bearing;

[0050] 180, first outer gear ring;

[0051] 181. Driving motor;

[0052] 182. Generator;

[0053] 183. Transmission gear;

[0054] 184. Gear;

[0055] 185, second outer gear ring;

[0056] 186. Thrust bearing;

[0057] 191. Wind direction sensor;

[0058] 192. Wind speed sensor;

[0059] 2. Connecting rod. DETAILED DESCRIPTION

[0060] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0061] In the following description of different examples of the present invention, reference is made to the accompanying drawings, which form a part of the present invention and in which different exemplary structures, systems and steps that can implement multiple aspects of the present invention are shown by way of example. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps can be used, and structural and functional modifications can be made without departing from the scope of the present invention. Moreover, although the terms "top", "bottom", "front", "rear", "side", etc. may be used in this specification to describe different exemplary features and elements of the present invention, these terms are used herein only for convenience, such as according to the direction of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the present invention.

[0062] Figure 1 It is a schematic diagram of the top view of the structure of the semi-wind-shielded vertical-axis wind power generation equipment of the present invention.

[0063] Figure 2 It is a schematic diagram of the main structure of the semi-wind-shielded vertical-axis wind power generation equipment of the present invention.

[0064] like Figure 1 and Figure 2 As shown, the semi-wind-shielded vertical axis wind power generation equipment of the present invention includes three power generation units 1 forming a triangular array, and the three power generation units 1 are connected to each other by connecting rods 2 to support each other, thereby improving the stability of the three power generation units 1 and ensuring the safety of wind power generation.

[0065] Figure 3 It is a schematic structural diagram of a power generation unit in a semi-wind-shielded vertical-axis wind power generation device of the present invention.

[0066] like Figure 3 As shown, each power generation unit 1 includes a bottom column 11, a fan mechanism and a wind shield mechanism. The bottom column 11 is fixedly arranged, usually fixedly installed on the ground, and a column 12 is fixedly arranged on the top of the bottom column 11 for installing the fan mechanism and the wind shield mechanism.

[0067] In this embodiment, the wind blade mechanism includes more than three pairs of wind blades 13, each of which can rotate around the column 12 under the action of wind. The wind blade mechanism is transmission-connected to the generator 182. The wind blades 13 extend vertically and rotate in a parallel horizontal plane under the drive of wind, thereby driving the generator 182 to generate electricity.

[0068] Figure 8 It is a schematic diagram of the first state of the wind shield in the semi-wind shielding vertical axis wind power generation equipment of the present invention.

[0069] Fig. 9 It is a schematic diagram of the second state of the wind shield in the semi-wind shielding vertical axis wind power generation equipment of the present invention.

[0070] like Figure 8 and Fig. 9 As shown, in this embodiment, the wind shielding mechanism is arranged at the periphery of the fan blade mechanism and shields half of the windward side of the fan blade mechanism, and the other side of the fan blade mechanism is open and blown by the wind, and the headwind on the other side is shielded, thereby improving the wind utilization efficiency and the wind power generation efficiency. The wind shielding mechanism can shield on either side of the fan blade mechanism, as shown in the two figures respectively. Among them, the arrow F in the figure is the direction of the wind.

[0071] In this embodiment, the column 12 is a stepped structure that tapers from bottom to top, forming multiple steps to facilitate the installation of bearings. The connecting rod 2 connects the top of the column 12 and acts with the bottom column 11 to stabilize the column 12 and improve the stability of the column 12.

[0072] In this embodiment, the fan mechanism includes a fan plate 13 , a horizontal rod 131 , a vertical rod 132 and a fan plate bearing 130 . Figure 4 FIG. 1 is a schematic diagram of the structure of the wind blade bearing in the semi-wind shielded vertical axis wind power generation device of the present invention. The structure of the wind blade bearing 130 is as follows: Figure 4 As shown, the vane bearing 130 is arranged at the step position of the column 12, the cross bar 131 is rotatably connected to the column 12 through the vane bearing 130, the vane 13 and the vertical bar 132 are connected to the cross bar 131, and the lower part of the vertical bar 132 is transmission-connected to the generator 182. Driven by wind, the vane 13 drives the cross bar 131 to rotate around the column 12 under the action of the vane bearing 130, thereby driving the vertical bar 132 to rotate, and the vertical bar 132 drives the generator 182 to generate electricity.

[0073] In this embodiment, a first outer gear ring 180 is fixedly mounted on the column 12, a second outer gear ring 185 is mounted above the first outer gear ring 180, the second outer gear ring 185 is connected to the vertical rod 131, and can rotate around the column 12, the generator 182 is mounted on the lower part of one side of the first outer gear ring 180, a gear 184 is mounted on the shaft of the generator 182, and the gear 184 is meshed with the second outer gear ring 185. The first outer gear ring 180 is fixed on the column 12, and when the vertical rod 131 rotates, it drives the second outer gear ring 185 to rotate around the column 12, thereby driving the gear 184 to rotate, and through the connection, drives the generator 182 to rotate and generate electricity.

[0074] In this embodiment, a thrust bearing 186 is disposed between the first outer gear ring 180 and the second outer gear ring 185. When the second outer gear ring 185 rotates relative to the first outer gear ring 180, the thrust bearing 186 bears an axial load, thereby ensuring the reliability of the relative motion between the two and reducing energy loss.

[0075] In this embodiment, the windshield mechanism includes a windshield frame 14, a windshield plate 15 and an adjustment mechanism. The windshield frame 14 is rotatably connected to the column through a windshield bearing 17. Figure 5 Schematic diagram of the structure of the windshield bearing in the semi-windshielded vertical axis wind power generation equipment of the present invention. The structure of the windshield bearing 17 is as follows Figure 5 As shown, it includes two parts, the upper and lower parts, which work together to ensure the flexible and reliable rotation of the windshield frame 14. The windshield plate 15 is fixed on the windshield frame 14, and the adjustment mechanism is connected to the windshield frame 14 to adjust the windward angle of the windshield plate 15, thereby ensuring the reliability of wind power generation under different conditions.

[0076] In this embodiment, the adjustment mechanism includes a mounting frame 16, a driving motor 181, a transmission gear 183 and a first outer gear ring 180. The mounting frame 16 is rotatably mounted on the bottom of the column 12 through a windshield bearing 17, and is placed on the upper part of the bottom column 11 and connected to the windshield frame 14. The driving motor 181 is mounted on the lower part of the mounting frame 16, and the transmission gear 183 is mounted on the upper part of the mounting frame 16, connected to the driving motor 181, and meshed with the first outer gear ring 180. The first outer gear ring 180 is fixed on the column 12. When the position of the windshield plate 15 needs to be adjusted, the driving motor 181 is activated to drive the transmission gear 183 to rotate. Since the first outer gear ring 180 is fixed, the transmission gear 183 rotates around the first outer gear ring 180, thereby driving the mounting frame 16 to rotate around the column 12 under the action of the windshield bearing 17, and driving the windshield plate 15 to the correct position through the windshield frame 14 to achieve posture adjustment.

[0077] In this embodiment, the semi-wind shielded vertical axis wind power generation equipment further includes a wind speed sensor 192 and a wind direction sensor 191. The wind speed sensor 192 and the wind direction sensor 191 are installed on the top of the column 12, and the adjustment mechanism adjusts the windward angle of the wind shield 15 according to the data obtained by the wind speed sensor 192 and the wind direction sensor 191. Figure 8 or Figure 8 shown.

[0078] In this embodiment, the wind shield 15 is an arc-shaped structure with a cross section of a quarter circle, shielding the windward half of the fan blade mechanism. Fig.10 Schematic diagram of the third state of the windshield in the semi-wind shielding vertical axis wind power generation equipment of the present invention. In addition, when the wind speed sensor 192 measures that the wind speed exceeds the rated wind speed, the windshield 15 moves to the windward state with the column 12 as the center line, shielding the wind blades 13 on both sides. Fig.10 As shown, arrow F in the figure indicates the direction from which the wind blows.

[0079] Figure 6 It is a schematic diagram of the structure of the wind blades in the semi-wind-shielded vertical-axis wind power generation equipment of the present invention.

[0080] Figure 7 It is a schematic diagram of the connection structure of the wind blades in the semi-wind-shielded vertical-axis wind power generation equipment of the present invention.

[0081] In this embodiment, Figure 6 and Figure 7 As shown, each pair of wind blades 15 are symmetrically arranged about the axis of the column 12, and the shape of the wind blades 15 is a rearward concave gourd shape or a rearward concave flat bottom plate shape, with the opening of the unobstructed side facing the wind direction. The wind blades 15 are connected and fixed by a horizontal rod 131, and connected to a generator 182 by a vertical rod 132 for wind power generation.

[0082] It can be seen from the above technical solution that the advantages and positive effects of the semi-wind-shielded vertical axis wind power generation equipment of the present invention are:

[0083] In the present invention, each power generation unit 1 shields one side of the wind blade mechanism through the wind shield, which can reduce the rotation wind resistance on the other side of the wind blade plate 15, thereby greatly improving the wind power generation efficiency, and the three power generation units 1 are connected in a triangular array, which improves the stability of the power generation equipment and ensures safety.

[0084] Those skilled in the art should understand that the specific structures and processes shown in the above specific embodiments are only exemplary and not restrictive. Moreover, those skilled in the art can combine the various technical features shown above in various possible ways to form new technical solutions, or make other changes, which are all within the scope of the present invention.

Claims

1. A semi-wind-shielded vertical axis wind power generation device, characterized in that: It includes three power generation units forming a triangular array, wherein the three power generation units are connected to each other by connecting rods, and each power generation unit includes: A bottom column, wherein the bottom column is fixedly arranged, and a vertical column is fixedly arranged on the upper part of the bottom column; A fan blade mechanism, the fan blade mechanism comprises more than three pairs of fan blades, each of the fan blades can rotate around the column under the action of wind force, and the fan blade mechanism is transmission-connected to the generator; A wind shielding mechanism is arranged at the periphery of the fan blade mechanism and shields half of the windward surface of the fan blade mechanism.

2. The semi-wind-shielded vertical axis wind power generation device according to claim 1, characterized in that: The columns are in a stepped structure that tapers gradually from bottom to top, and the connecting rods are connected to the tops of the columns.

3. The semi-wind-shielded vertical axis wind power generation device according to claim 2, characterized in that: The fan mechanism includes the fan plate, a cross bar, a vertical bar and a fan plate bearing. The fan plate bearing is arranged at the stepped position of the column. The cross bar is rotatably connected to the column through the fan plate bearing. The fan plate and the vertical bar are connected to the cross bar. The lower part of the vertical bar is transmission-connected to the generator.

4. The semi-wind-shielded vertical axis wind power generation device according to claim 3, characterized in that: A first outer gear ring is fixedly mounted on the column, a second outer gear ring is mounted above the first outer gear ring, the second outer gear ring is connected to the vertical rod and can rotate around the column, the generator is mounted on a lower part of one side of the first outer gear ring, a gear is mounted on the generator shaft, and the gear is meshed with the second outer gear ring.

5. The semi-wind-shielded vertical axis wind power generation device according to claim 4, characterized in that: A thrust bearing is arranged between the first outer gear ring and the second outer gear ring.

6. The semi-wind-shielded vertical axis wind power generation device according to claim 4, characterized in that: The windshield mechanism comprises a windshield frame, a windshield plate and an adjustment mechanism. The windshield frame is rotatably connected to the column, the windshield plate is fixed on the windshield frame, and the adjustment mechanism is connected to the windshield frame to adjust the windward angle of the windshield plate.

7. The semi-wind-shielded vertical axis wind power generation device according to claim 6, characterized in that: The adjustment mechanism includes a mounting frame, a driving motor, a transmission gear and the first outer gear ring. The mounting frame is rotatably mounted at the bottom of the column and is placed on the upper part of the base column and connected to the wind shield frame. The driving motor is mounted at the lower part of the mounting frame. The transmission gear is mounted at the upper part of the mounting frame, connected to the driving motor, and meshed with the first outer gear ring.

8. The semi-wind-shielded vertical axis wind power generation device according to claim 6, characterized in that: The semi-wind-shielded vertical axis wind power generation equipment also includes a wind speed sensor and a wind direction sensor, which are installed on the top of the column. The adjustment mechanism adjusts the windward angle of the wind shield according to the data obtained by the wind speed sensor and the wind direction sensor.

9. The semi-wind-shielded vertical axis wind power generation device according to claim 8, characterized in that: The wind shield is an arc-shaped structure with a quarter-circle cross-section, which blocks the windward half of the fan mechanism. When the wind speed sensor measures a wind speed exceeding the rated wind speed, the wind shield moves to a windward state with the column as the center line, blocking the fan blades on both sides.

10. The semi-wind-shielded vertical axis wind power generation device according to claim 1, characterized in that: Each pair of the wind blades is symmetrically arranged with respect to the axis of the column. The shape of the wind blades is a rearward concave scoop shape or a rearward concave flat plate shape, and the opening on the unobstructed side faces the wind direction of the incoming wind.

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