A vertical axis wind power generation fan blade and a vertical axis wind power generation device

Abstract

The present invention discloses a vertical-axis wind turbine blade and a vertical-axis wind turbine generator device, primarily comprising a frame and a fan. The fan is disposed within the frame and includes a fixed fan and a movable fan. Several fixed fans are spaced apart from several movable fans, and the movable fan can rotate through an angle of 0-90 degrees. This application addresses the challenges of large-scale wind turbines, including difficult transportation, installation, maintenance, and high costs. It can be used in any terrain, regardless of topography, as long as there is sufficient wind power, while also achieving dual carbon emission reductions.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation devices, and in particular to a vertical-axis wind power generation blade and a vertical-axis wind power generation device. Background Art

[0002] With the increasing depletion of global chemical energy, wind power generation is gaining increasing attention. Vertical-axis wind turbines, with their advantages of high wind energy utilization, low starting wind speeds, and near-silence, hold broad application prospects. Existing vertical-axis wind turbine blades are typically monolithic—the entire blade is a single piece. This has the following major drawbacks: The large size of individual blades makes precision machining, transportation, and installation difficult; and the overall size of the turbine is limited by the shape and size of the individual blades. Summary of the Invention

[0003] (1) Purpose of the invention

[0004] In view of the above problems, the purpose of the present invention is to propose a vertical axis wind turbine blade and a vertical axis wind turbine device, which solves the problems of large-scale wind power generation such as difficult transportation, difficult installation, difficult maintenance and high cost. It can be used regardless of the terrain as long as there is sufficient wind power, and at the same time achieve dual carbon emission reduction. The present invention discloses the following technical solutions.

[0005] (2) Technical solution

[0006] As a first aspect of the present invention, the present invention discloses a vertical axis wind turbine fan blade, comprising: a frame and a fan surface, wherein the fan surface is arranged in the frame, the fan surface comprises a fixed fan surface and a movable fan surface, a plurality of the fixed fan surfaces and a plurality of the movable fan surfaces are arranged at intervals, and the movable fan surface can rotate at an angle of 0-90 degrees.

[0007] In a possible implementation, the movable sector is provided with a first connecting shaft, and the fixed sector is provided with a second connecting shaft, and the first connecting shaft and the second connecting shaft are rotatably connected.

[0008] In a possible implementation, a movable pull rod is provided between the movable sector and the fixed sector.

[0009] In a possible embodiment, the movable pull rod includes a first pull rod and a second pull rod, the first pull rod is rotatably connected below the fixed fan surface or above the movable fan surface, the second pull rod is slidably connected above the movable fan surface or below the fixed fan surface, and the first pull rod and the second pull rod are slidably connected.

[0010] In a possible implementation, the first pull rod is provided with a pull rod sliding groove, and the second pull rod is slidably connected to the pull rod sliding groove.

[0011] In a possible implementation, a sliding groove is provided on the movable sector or the fixed sector, and a slider is provided on the second pull rod, and the slider is slidably connected in the sliding groove.

[0012] In a possible implementation, the frame includes four side bars, and the side bars are fixed by bolts to form the frame.

[0013] In a possible implementation manner, a support arm is provided at each of the four corners of the frame.

[0014] In a possible implementation manner, the movable sector is fixedly connected to the fixed sector via a fixing member.

[0015] As a second aspect of the present invention, the present invention also discloses a vertical power generation wind turbine with vertical axis wind turbine blades as described in any of the above technical solutions, comprising: a rotating shaft and at least three blades, wherein the blades are evenly spaced and fixed on the outer peripheral surface of the rotating shaft.

[0016] (3) Beneficial effects

[0017] The vertical axis wind power generation fan blade and vertical wind power generation device disclosed in the present invention have the following beneficial effects:

[0018] The vertical-axis wind turbine fan blades feature an integral grid-like frame structure, with several layers of fixed and movable blades arranged within the frame. The fixed and movable blades are spaced apart, and the angle between the movable and fixed blades is controlled by a 90-degree hinge between the gaps between adjacent layers. When wind speeds are low, the movable blades are blown open by the wind, forming a 90-degree wind-receiving angle with the upper and lower fixed blades, thereby starting the fan rotation and resolving the key challenge of starting at low wind speeds. When a certain speed is reached, the movable blades are pulled back into position by centrifugal force, forming a single wind-receiving panel with the fixed blades. Together, they rotate to generate the highest wind speed, achieving the goal of starting high-speed power generation at low wind speeds.

[0019] The present invention solves the problems of large-scale wind power generation, such as difficult transportation, difficult installation, difficult maintenance, and high cost. It can be used regardless of the terrain as long as there is sufficient wind power, and can also achieve dual carbon emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain and illustrate the present invention, but should not be construed as limiting the scope of protection of the present invention.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of a vertical axis wind turbine blade disclosed in the present invention;

[0022] Figure 2It is a three-dimensional structural diagram of the connection relationship between the movable fan surface and the fixed fan surface disclosed in the present invention;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the movable pull rod disclosed in the present invention;

[0024] Figure 4 It is a schematic diagram of a three-dimensional structure in which a movable fan surface and a fixed fan surface are fixed to each other as disclosed in the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the movable fan disclosed in the present invention when it is opened;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the vertical power generation wind turbine disclosed in the present invention in which the movable fan surface and the fixed fan surface are fixed.

[0027] Figure numerals: 100, frame; 110, support arm; 200, fan; 210, fixed fan; 211, second connecting shaft; 220, movable fan; 221, first connecting shaft; 222, slide; 300, movable pull rod; 310, first pull rod; 320, second pull rod. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention.

[0029] It should be noted that: in the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of the present invention, not all of them. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0031] Reference below Figure 1-6 A first embodiment of a vertical axis wind turbine blade disclosed in the present invention is described in detail.

[0032] like Figure 1 As shown, this embodiment mainly includes a frame 100 and a fan 200. The fan 200 is arranged in the frame 100. The fan 200 includes a fixed fan 210 and a movable fan 220. A plurality of fixed fan 210 and a plurality of movable fan 220 are arranged at intervals. The movable fan 220 can rotate at an angle of 0-90 degrees. Under the action of low wind speed, the wind blows the movable fan 220, so that the movable fan 220 and the fixed fan 210 form a wind-receiving angle, so that the fan blades rotate. Under the action of centrifugal force after high speed, the movable fan 220 moves, so that the movable fan 220 is reset as a whole. After resetting, the reset angle between the movable fan 220 and the fixed fan 210 is 0 degree.

[0033] Furthermore, the fan blades are made of glass fiber epoxy resin material. The cross-section of the fan blades is willow-leaf-shaped, with the width gradually decreasing from the middle to the two ends, and the upper and lower sides are arc-shaped. The size of the fan blades can be freely combined according to the application scenario.

[0034] like Figure 2 As shown, in one embodiment, a first connecting shaft 221 is provided on the movable fan surface 220, and a second connecting shaft 211 is provided on the fixed fan surface 210, and the first connecting shaft 221 and the second connecting shaft 211 are rotatably connected.

[0035] The first connecting shaft 221 and the second connecting shaft 211 are plugged into each other, and the movable fan surface 220 rotates along the axis of the first connecting shaft 221 or the second connecting shaft 211 , so that an angle is formed between the movable fan surface 220 and the fixed fan surface 210 .

[0036] Furthermore, the first connecting shaft 221 has a hollow structure, and the inner diameter of the hollow structure is larger than the outer diameter of the second connecting shaft 211 , so that the second connecting shaft 211 can be easily inserted into the first connecting shaft 221 .

[0037] Furthermore, the first connecting shaft 221 is embedded in the lower portion of the fixed fan surface 210, and the second connecting shaft 211 is inserted into the second connecting shaft 211, so that the movable fan surface 220 and the fixed fan surface 210 are in contact with each other or with a certain gap. When assembling the entire fan blade, a two-shaft inner and outer sleeve type can be used to be embedded and cured in the glass fiber epoxy resin fan blade. The fixed fan surface 210 and the movable fan surface 220 are connected by inserting the first connecting shaft 221 and the second connecting shaft 211, and so on to form an entire fan blade of the required height.

[0038] like Figure 3 As shown, in one embodiment, a movable pull rod 300 is provided between the movable fan surface 220 and the fixed fan surface 210 .

[0039] There is a certain gap between the movable fan surface 220 and the fixed fan surface 210. The movable pull rod 300 is set in the gap to control the angle between the movable fan surface 220 and the fixed fan surface 210 so that the angle formed between the movable fan surface 220 and the fixed fan surface 210 is 0-90 degrees.

[0040] Furthermore, a movable hinge may be used between the movable fan surface 220 and the fixed fan surface 210 .

[0041] In one embodiment, the movable pull rod 300 includes a first pull rod 310 and a second pull rod 320. The first pull rod 310 is rotatably connected below the fixed fan surface 210 or above the movable fan surface 220, and the second pull rod 320 is slidably connected above the movable fan surface 220 or below the fixed fan surface 210. The first pull rod 310 and the second pull rod 320 are slidably connected.

[0042] In one embodiment, a pull rod sliding groove is provided on the first pull rod 310, and the second pull rod 320 is slidably connected in the pull rod sliding groove.

[0043] Two L-shaped baffles are provided on the end face of the first pull rod 310 close to the second pull rod 320. The baffles include a vertical plate and a horizontal plate. One end of the vertical plate is fixed to the end face of the first pull rod 310, and the other end is fixed to the horizontal plate. The two baffles and the end face of the first pull rod 310 form a pull rod slide groove similar to a "concave" shape. The second pull rod 320 can be embedded in the pull rod slide groove and move along the length direction of the pull rod slide groove.

[0044] In one embodiment, a sliding groove 222 is provided on the movable sector 220 or the fixed sector 210 , and a slider is provided on the second pull rod 320 , and the slider is slidably connected in the sliding groove 222 .

[0045] The slide groove 222 extends along the length direction of the fan blade. The cross-section of the slide groove 222 can be any one of a trapezoidal, dovetail or "T" shape. The cross-section of the slider is adapted to the cross-section of the slide groove 222. The upper surface of the slider is flush with the surface of the fan surface 200, or higher than the surface of the fan surface 200.

[0046] Furthermore, the first pull rod 310 is rotatably connected to one end face of the fixed fan surface 210 close to the movable fan surface 220, the second pull rod 320 is rotatably connected to the slider, the slide groove 222 is set on one end of the movable fan surface 220 close to the fixed fan surface 210, and the slider is slidably connected to the slide groove 222. At low wind speeds, the movable fan surface 220 is blown open by the wind, and the movable fan surface 220 drives the second pull rod 320 to move along the pull rod slide groove, and the second pull rod 320 rotates relative to the slider, and at the same time also drives the slider to move in the slide groove 222, thereby forming a wind-receiving angle between the movable fan surface 220 and the fixed fan surface 210.

[0047] like Figure 1As shown, in one embodiment, the frame 100 includes four side bars, which are fixed by bolts to form the frame 100 .

[0048] Furthermore, two adjacent side bars in the frame 100 are wrapped with angle steel and then fixed with bolts, thereby forming a rectangular or oblong frame 100 , and the fan 200 is installed in the frame 100 .

[0049] like Figure 5 and Figure 6 As shown, in one embodiment, a support arm 110 is provided at each of the four corners of the frame 100 .

[0050] A support arm 110 is fixed at each of the four corners of one side of the frame 100 , and the other end of the support arm 110 is fixedly connected to the main pole of the wind turbine rotor, so as to achieve the purpose of large-scale vertical axis wind power generation.

[0051] like Figure 4 As shown, in one embodiment, the movable sector 220 is fixedly connected to the fixed sector 210 via a fixing member.

[0052] Furthermore, an electromagnet may be used to fix the movable fan surface 220 and the fixed fan surface 210 so that the movable fan surface 220 and the fixed fan surface 210 form an integral fan blade for special purposes.

[0053] The electromagnet is fixedly installed below the fixed fan 210. When the movable fan 220 needs to be fixed, the electromagnet is energized. After the electromagnet is energized, it has magnetic force to adsorb the frame 100 of the movable fan 220, thereby fixing the movable fan 220 below the fixed fan 210.

[0054] Reference below Figures 1-6 Detailed description: Based on the same inventive concept, an embodiment of the present invention further provides a first embodiment of a vertical axis wind power generation device.

[0055] like Figure 6 As shown, this embodiment mainly includes a rotating shaft and at least three fan blades. The fan blades are evenly spaced and fixed on the outer peripheral surface of the rotating shaft. The fan blades include a frame 100 and a fan surface 200. The fan surface 200 is arranged in the frame 100. The fan surface 200 includes a fixed fan surface 210 and a movable fan surface 220. Several fixed fan surfaces 210 and several movable fan surfaces 220 are arranged at intervals. The movable fan surface 220 can rotate at an angle of 0-90 degrees. When the wind speed is low, the movable fan surface 220 is blown open by the wind, forming a 90-degree wind angle with the upper and lower fixed fan surfaces 210, thereby starting the fan blades to rotate, solving the key problem of starting at low wind speeds. When a certain speed is reached, the movable fan surface 220 is returned to its original position by the centrifugal force, forming an integral wind-receiving panel with the fixed fan surface 210, and rotating together to produce the highest wind speed, thereby achieving the purpose of starting high-speed power generation at low wind speeds.

[0056] Furthermore, the fan blade structure in this embodiment is the same as the structure of the vertical axis wind turbine fan blade in the above embodiment, so it will not be described here in detail.

[0057] In one embodiment, the movable sector 220 is provided with a first connecting shaft 221 , and the fixed sector 210 is provided with a second connecting shaft 211 . The first connecting shaft 221 and the second connecting shaft 211 are rotatably connected.

[0058] In one embodiment, a movable pull rod 300 is provided between the movable fan surface 220 and the fixed fan surface 210 .

[0059] In one embodiment, the movable pull rod 300 includes a first pull rod 310 and a second pull rod 320. The first pull rod 310 is rotatably connected below the fixed fan surface 210 or above the movable fan surface 220, and the second pull rod 320 is slidably connected above the movable fan surface 220 or below the fixed fan surface 210. The first pull rod 310 and the second pull rod 320 are slidably connected.

[0060] In one embodiment, a pull rod sliding groove is provided on the first pull rod 310, and the second pull rod 320 is slidably connected in the pull rod sliding groove.

[0061] In one embodiment, a sliding groove 222 is provided on the movable sector 220 or the fixed sector 210 , and a slider is provided on the second pull rod 320 , and the slider is slidably connected in the sliding groove 222 .

[0062] In one embodiment, the frame 100 includes four side bars, which are fixed together by bolts to form the frame 100 .

[0063] In one embodiment, a support arm 110 is provided at each of the four corners of the frame 100 .

[0064] In one embodiment, the movable sector 220 is fixedly connected to the fixed sector 210 via a fixing member.

[0065] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A vertical axis wind turbine blade, characterized in that: include: A frame (100) and a fan (200), wherein the fan (200) is arranged in the frame (100), the fan (200) comprises a fixed fan (210) and a movable fan (220), a plurality of the fixed fan (210) and a plurality of the movable fan (220) are arranged at intervals, and the movable fan (220) can rotate at an angle of 0-90 degrees; Wherein, a movable pull rod (300) is provided between the movable fan surface (220) and the fixed fan surface (210); the movable pull rod (300) includes a first pull rod (310) and a second pull rod (320), the first pull rod (310) is rotatably connected below the fixed fan surface (210) or above the movable fan surface (220), the second pull rod (320) is slidably connected above the movable fan surface (220) or below the fixed fan surface (210), the first pull rod (310) and the second pull rod (320) are slidably connected; a pull rod slot is provided on the first pull rod (310), and the second pull rod (320) is slidably connected in the pull rod slot; Furthermore, a sliding groove (222) is provided on the movable fan surface (220) or the fixed fan surface (210), and a sliding block is provided on the second pull rod (320), and the sliding block is slidably connected in the sliding groove (222).

2. A vertical axis wind turbine blade according to claim 1, characterized in that: The movable fan surface (220) is provided with a first connecting shaft (221), and the fixed fan surface (210) is provided with a second connecting shaft (211), and the first connecting shaft (221) and the second connecting shaft (211) are rotatably connected.

3. The vertical axis wind turbine blade according to claim 1, characterized in that: The frame (100) comprises four side bars, and the side bars are fixed by bolts to form the frame (100).

4. The vertical axis wind turbine blade according to claim 1, characterized in that: Support arms (110) are respectively provided at the four corners of the frame (100).

5. The vertical axis wind turbine blade according to claim 1, characterized in that: The movable fan surface (220) is fixedly connected to the fixed fan surface (210) via a fixing member.

6. A vertical axis wind power generation device, characterized in that: include: A rotating shaft and at least three fan blades, wherein the fan blades are evenly spaced and fixed on the outer peripheral surface of the rotating shaft, and the fan blades are a vertical axis wind power generation fan blade as described in any one of claims 1-5.

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