A rotating assembly and a wind power plant

Abstract

The application relates to a rotating assembly and a wind power generation device, and belongs to the technical field of wind power generation equipment. The rotating assembly comprises a rotating support capable of rotating in a circumferential direction around a rotating shaft and a plurality of blade assemblies installed in the circumferential direction. The blade assembly is provided with a wind gathering chamber, the open first end of which is outward, the closed second end of which is inward, and the chamber is streamlined from the first end to the second end. The wind power generation device further comprises a flow guide assembly surrounding the outer side of the rotating assembly, and the flow guide outer baffle can be self-adaptively swung inward around a preset swing shaft. The application can guide the wind in a direction and gather the wind in the wind gathering chamber through the cooperation of the flow guide outer baffle and the wind gathering chamber, can guide the dispersed wind energy into the chamber to form a concentrated driving force, can reduce the energy loss caused by wind direction fluctuation and turbulence, can adapt to low and high wind speed working conditions, can solve the problem of weak wind gathering capacity of traditional vertical axis blades, can significantly improve the wind energy capture efficiency and energy conversion efficiency, and has stronger adaptability to wind direction fluctuation.

Description

Technical Field

[0001] This application relates to the technical field of wind power generation, and in particular to a rotating component and a wind power generation device. Background Technology

[0002] With the rapid development of the new energy industry, wind power, as an important form of clean and renewable energy utilization, has always been a research hotspot for technological optimization and efficiency improvement. Currently, mainstream wind turbines are mainly divided into two categories: horizontal axis wind turbines and vertical axis wind turbines.

[0003] Horizontal axis wind turbines are widely used due to their high power generation efficiency. Their blades are typically long and narrow airfoil structures. The blades of a horizontal axis wind turbine rotate around a horizontally positioned main axis, relying on the lift of the oncoming wind to drive the rotation. However, they are highly sensitive to wind direction. The core prerequisite for their wind energy capture efficiency is that the plane of rotation of the blade assembly is perpendicular to the wind direction. In this case, the wind flows along the chord length of the blade assembly across the airfoil surface, creating a stable pressure difference between the upper and lower surfaces of the blade assembly, driving the blade assembly to rotate efficiently. However, the direction of natural wind is not constant, but rather experiences frequent instantaneous fluctuations and long-term azimuth changes. A large amount of wind energy is lost from both sides of the blade assembly without being effectively utilized.

[0004] Vertical axis wind turbines also have some shortcomings. Their blade assemblies are mostly symmetrical arc or flat plate structures, lacking directional wind gathering capabilities. Wind energy is only driven to rotate by the pressure difference on both sides of the blade assembly, resulting in low energy conversion efficiency. Although some vertical axis models have added guide vanes to reduce leeward resistance, most guide vanes are fixed in position and cannot adaptively adjust the guide angle according to wind speed. This leads to insufficient wind guidance at low wind speeds and excessive resistance of the guide vanes themselves at high wind speeds, which in turn affects rotation efficiency. In addition, there is no coordinated wind gathering design between the blade assembly and the guide vanes. When the wind flows through the gaps between the blade assemblies, it is easy to form turbulence, which further aggravates energy loss.

[0005] In summary, existing wind turbines have low wind energy utilization rates and weak adaptability to operating conditions, and these problems urgently need to be addressed. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this application is to provide a rotating component and a wind power generation device that can improve the utilization rate of wind energy.

[0007] The above-mentioned objective of this application is achieved through the following technical solution: A rotating assembly for drive cooperation with a generator to generate electricity, the rotating assembly including a rotating support and a plurality of blade assemblies, the rotating support being circumferentially rotatable about a rotation axis, the plurality of blade assemblies being circumferentially mounted on the rotating support.

[0008] Furthermore, each blade assembly is provided with a wind-gathering chamber, which has a first end and a second end. The first end is open and inclined toward the outside of the rotating support, while the second end is closed and inclined toward the inside of the rotating support. The wind-gathering chamber is streamlined and converges from the first end to the second end.

[0009] As a preferred embodiment of the present invention, each blade assembly includes a guide vane and a booster plate, both of which are streamlined structures that bend in the same direction toward the inside of the rotating support, and the guide vane and the booster plate are connected to form the wind-gathering chamber.

[0010] As a preferred embodiment of the present invention, a plurality of blade assemblies are distributed along the axial direction of the rotating support to form two upper and lower gear trains, the blade assemblies in the two gear trains are arranged in an alternating pattern, and the plurality of blade assemblies in the two gear trains form a complete cover along the circumference of the rotating support.

[0011] As a preferred embodiment of the present invention, any blade assembly in the upper gear train and the blade assembly in the adjacent lower gear train share a common area on the circumferential circumference centered on the rotation axis.

[0012] As a preferred embodiment of the present invention, each blade assembly further includes a plurality of diverter plates, which are spaced apart in the air-gathering chamber along a direction perpendicular to the extension of the air-gathering chamber, and divide the air-gathering chamber into a plurality of independent air-gathering sub-chambers; each air-gathering sub-chamber has an open sub-port facing outward of the rotating support and a closed sub-end inclined inward of the rotating support, and the extension direction of the air-gathering sub-chamber is consistent with that of the air-gathering chamber.

[0013] A wind power generation device includes the aforementioned rotating component and a flow guiding component. The flow guiding component includes a plurality of flow guiding outer baffles that are circumferentially surrounding the outside of the rotating component. The flow guiding outer baffles can swing inward about a preset swing axis. When subjected to wind force, the flow guiding outer baffles deflect inward, thereby guiding the wind to the first end, so that the wind exerts a force on the wind gathering chamber from the first end to the second end, thereby driving the rotating component to rotate circumferentially about the rotation axis.

[0014] As a preferred embodiment of the present invention, an air inlet and outlet are formed between two adjacent outer baffles; when the rotating assembly is rotated to any position, the air inlet and outlet are at least directly opposite the first end of the wind-gathering chamber of one of the blade assemblies, and any outer baffle at least blocks a portion of one of the blade assemblies.

[0015] As a preferred embodiment of the present invention, the flow guiding assembly further includes a plurality of telescopic guide rods, one end of each telescopic guide rod being rotatably connected to the fixed frame, and the other end being correspondingly connected to one of the flow guiding outer baffles; under normal conditions where there is no wind or the wind force is less than a preset value, the telescopic guide rod is in a supporting state, supporting the flow guiding outer baffle at the initial position furthest from the rotating assembly within its set swing range, and the telescopic guide rod can adaptively extend and retract as the flow guiding outer baffle deflects inward.

[0016] As a preferred embodiment of the present invention, the number of the flow guiding outer baffles is four, and they are evenly arranged on the outside of the rotating assembly along the circumference. When one of the flow guiding outer baffles is deflected inward by the wind force, the other three flow guiding outer baffles are in the initial position.

[0017] In summary, the beneficial technical effects of this application are as follows: This application utilizes the synergistic effect of the outer baffle and the wind-gathering chamber of the blade assembly. When the outer baffle is driven by wind to swing inward, it can directionally guide the wind to the open first end of the wind-gathering chamber, preventing the wind from being irregularly lost from both sides of the blade assembly. Even if there are fluctuations in the wind direction, the adaptive swing of the outer baffle can still guide most of the wind energy into the wind-gathering chamber, reducing energy loss caused by changes in wind direction and improving adaptability to wind direction fluctuations.

[0018] The blade assembly of this application features an open first end facing outwards and a closed second end tilted inwards. The chamber structure can directionally constrain and concentrate wind energy, so that when the wind flows from the first end to the second end, it forms a concentrated force that directly drives the rotating assembly to rotate. This solves the problem of traditional vertical axis blade assemblies relying on the pressure difference between the two sides and having weak wind-gathering ability, thereby improving energy conversion efficiency.

[0019] The outer baffle of this application can swing inward around a preset swing axis, and its swing amplitude can be adaptively adjusted according to the wind force. At low wind speed, the outer baffle deflects moderately to guide the wind into the wind-gathering chamber to ensure effective capture of dispersed wind energy. At high wind speed, the outer baffle adjusts the swing angle as the wind force increases to avoid excessive resistance due to rigid angle.

[0020] The application's outer baffle and the wind-gathering chamber form a synergistic structure, whereby wind energy is guided by the outer baffle and enters the wind-gathering chamber in an orderly manner, reducing turbulence when wind flows through the gaps between the blade components, reducing energy loss caused by turbulence, and further improving wind energy utilization.

[0021] The outer baffle of this application has the dual functions of guiding and concentrating wind. It can guide the dispersed natural wind to the first end of the wind concentrating chamber, and through its own structural design, it can expand the contact area with the wind, increase the effective area of ​​wind force application, so that the wind force can be more concentrated and fully applied to the wind concentrating chamber, further strengthen the force of the wind-driven rotating component, and improve the efficiency of wind energy capture and conversion.

[0022] This application utilizes several external baffles arranged circumferentially around the outside of the rotating component to specifically block the booster plate facing the oncoming wind, thereby preventing the booster plate from generating back resistance due to the oncoming wind from the source. This effectively reduces the rotational resistance of the rotating component, reduces energy loss, and ultimately improves the power generation efficiency and operational stability of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a wind turbine generator.

[0024] Figure 2 This is a schematic diagram of the wind turbine blade assembly.

[0025] Figure 3 This is a schematic diagram of the rotating component.

[0026] Figure 4 A schematic diagram showing the arrangement of multiple fan blade components.

[0027] Figure 5 A schematic diagram of the back resistance generated for multiple fan blade assemblies.

[0028] Figure 6 This is a schematic diagram of the flow guiding component.

[0029] Figure 7 This is a schematic diagram of the telescopic guide rod and the limiting block.

[0030] Reference numerals: 1. Rotating assembly; 11. Rotating shaft; 12. Rotating support; 13. Blade assembly; 13x. Gear train; 13a. First blade; 13b. Second blade; 13c. Third blade; 13d. Fourth blade; 13e. Fifth blade; 13f. Sixth blade; 131. Air-gathering chamber; 131a. First end; 131b. Second end; 132. Guide vane; 133. Boosting plate; 134. Diverter plate; 134a. Concentrator 1. Air chamber; 134b. Sub-port; 134c. Sub-end; 2. Air guide assembly; 21. Outer baffle of air guide; 21a. First baffle; 21b. Second baffle; 21c. Third baffle; 21d. Fourth baffle; 23. Fixed frame; 24. Telescopic guide rod; 25. Limiting block; 26. Air inlet and outlet; 26a. First air outlet; 26b. Second air outlet; 26c. Third air outlet; 26d. Fourth air outlet; F1. Air direction; F2. Rotational force direction. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] like Figure 1 As shown, a wind turbine generator is illustrated, mainly composed of a rotating component 1 and a flow guiding component 2 working together to achieve efficient wind energy capture and conversion while reducing wind resistance losses. The rotating component 1 is the part of the device that performs energy conversion, and it includes a rotating support 12 and multiple blade assemblies 13. The rotating support 12 serves as the mounting carrier for the blade assemblies 13 and can rotate circumferentially around a rotating axis 11. Preferably, this rotating axis 11 is set as an axis perpendicular to the ground, but this can be adjusted according to the actual installation scenario. The multiple blade assemblies 13 are evenly mounted on the support 12 along its circumference.

[0033] The airflow guiding component 2 is responsible for directional airflow guidance and improving wind energy utilization. It comprises several outer airflow guiding baffles 21, which are circumferentially distributed around the outer periphery of the rotating component 1. Adjacent outer airflow guiding baffles 21 are spaced apart, with the spacing determined by the size of the baffles and airflow requirements. This ensures coverage of most of the outer area of ​​the rotating component 1 without causing airflow congestion due to insufficient spacing. Each outer airflow guiding baffle 21 can oscillate inwards around a preset swing axis, such as... Figure 1 As shown, the rotating shaft 11 is located at the center of the device. The inward side is the direction toward the rotating shaft 11, and the outward side is the direction away from the rotating shaft 11. Specifically, the inward swing here refers to the guide flow outer baffle 21 swinging toward the side closer to the rotating component 1.

[0034] When wind blows towards the device, the wind force acts on the outer surface of the guide baffle 21, pushing the guide baffle 21 to deflect inward around the preset swing axis, guiding the wind to the blade assembly 13. The blade assembly 13 is pushed by the wind force, and the blade assembly 13 is subjected to force and drives the rotating bracket 12 to rotate circumferentially around the rotating shaft 11, thereby converting the wind energy into the mechanical energy of the rotating bracket 12. Subsequently, the mechanical energy can be transmitted to the generator through the transmission connection between the rotating bracket 12 and the generator, preferably by a coupling or gear transmission structure, to finally realize power generation.

[0035] like Figure 2As shown, each blade assembly 13 is provided with a wind-gathering chamber 131, which is used to achieve directional wind gathering. The overall shape is a cavity with one end open and one end closed. The first end 131a of the wind-gathering chamber 131 is set towards the outside of the rotating support 12 and remains open. This open end serves as the wind energy inlet and can receive the wind guided by the flow guide assembly 2. The second end 131b of the wind-gathering chamber 131 is inclined towards the inside of the rotating support 12 and is closed. The closed design can prevent the wind from escaping from the end of the chamber. The tilt angle is adapted to the installation position and rotation direction of the blade assembly 13 to ensure that the wind can flow along the tilt direction after entering the chamber.

[0036] Furthermore, each blade assembly 13 includes a guide vane 132 and a booster plate 133, which serve as the forming carriers of the wind-gathering chamber 131 and cooperate with each other in structural design to ensure the wind-gathering effect. Both the guide vane 132 and the booster plate 133 adopt a streamlined structure that bends in the same direction towards the inside of the rotating support 12. This same-direction bending means that the curvature directions of the two plates are consistent, both tilting and bending inwards along the direction from the first end 131a to the second end 131b, ensuring that when they are enclosed, they form a smooth and continuous cavity-like space. The streamlined structure of both the guide vane 132 and the booster plate 133 is based on aerodynamic principles, using a smoothly transitioning arc-shaped surface, which effectively reduces turbulence generated when airflow passes over the plate surface, reduces wind resistance loss, and guides airflow more smoothly into the wind-gathering chamber 131.

[0037] like Figure 3 As shown, the multiple blade assemblies 13 of this application form two upper and lower wheel systems 13x. Here, wheel system 13x refers to the ring array formed by the blade assemblies 13 being evenly distributed circumferentially at the same circumferential height of the rotating support 12. The two wheel systems 13x respectively form a set of such ring arrays at two different circumferential heights above and below the rotating support 12. The two wheel systems 13x are arranged parallel to each other along the axial direction of the rotating shaft 11. This arrangement avoids interference between the upper and lower blade assemblies 13 when rotating and can form wind-catching areas that are connected vertically.

[0038] Furthermore, the blade assemblies 13 in the two gear trains 13x are arranged in a staggered manner. If the blade assembly 13 of the upper gear train 13x is used as a reference, the circumferential gap between any two adjacent blade assemblies 13 will correspond exactly to the circumferential position of a blade assembly 13 in the lower gear train 13x. See further details... Figure 3The multiple blade assemblies 13 are designated as first blade 13a, second blade 13b, third blade 13c, fourth blade 13d, fifth blade 13e, and sixth blade 13f. First blade 13a, second blade 13b, and third blade 13c form a gear train 13x at the same height, while fourth blade 13d, fifth blade 13e, and sixth blade 13f form another gear train 13x at the same height. When viewed from above along the axial direction of the rotation axis 11, as shown... Figure 4 As shown, the fourth blade 13d is located between the first blade 13a and the second blade 13b. When the center phase of the upper gear train 13x blade assembly 13 is 0°, 120°, and 240°, the center phase of the lower gear train 13x blade assembly 13 corresponds to 60°, 180°, and 300°. This phase difference design achieves staggering.

[0039] Meanwhile, multiple blade assemblies 13 together cover the entire circumference of the rotating support 12, such as Figure 4 As shown, viewed from above along the axial direction of the rotation axis 11, the blade assemblies 13 of the upper and lower wheel systems 13x are arranged in a staggered pattern around the outer periphery of the rotating support 12, forming a continuous, seamless wind-catching surface in the circumferential direction. There is no circumferential blank area where wind energy can be directly bypassed and lost through the blade assemblies 13. With this arrangement, natural wind blowing from any circumferential angle around the outer periphery of the rotating component 1 can be captured by the blade assemblies 13 in the upper and lower wheel systems 13x and guided into the wind-gathering chamber 131, further improving the wind energy capture range and utilization rate.

[0040] Furthermore, between any blade assembly 13 in the upper gear train 13x and the corresponding staggered blade assembly 13 in the lower gear train 13x, there is at least one overlap between their respective guide vanes 132 and booster plates 133. Specifically, the two blade assemblies 13 refer to a blade assembly 13 in the upper gear train 13x and a blade assembly 13 in the lower gear train 13x that is precisely located at the circumferential gap position of the upper blade assembly 13, forming a corresponding relationship along the axial direction of the rotation axis 11. The overlap refers to the area shared by the blade assembly 13 in the upper gear train 13x and the adjacent blade assembly 13 in the lower gear train 13x on the circumference of the rotation axis 11, not direct contact between the two plates. Figure 4 As shown, the booster plate 133 of the first blade 13a and the guide plate 132 of the fourth blade 13d have a common area covered on the circumference of the rotation axis 11.

[0041] In other words, any blade assembly 13 located in the upper gear train 13x and a blade assembly 13 located in the lower gear train 13x that is adjacent to the upper blade assembly 13 in the circumferential direction share a common area on the circumferential circumference around the rotation axis 11. Here, the circumferential circumference around the rotation axis 11 specifically refers to any concentric circular trajectory centered on the axis of the rotation axis 11 and perpendicular to the rotation axis 11. The projection of the blade assembly 13 onto this circle, i.e., the angular range occupied by the blade assembly 13 in the circumferential direction, is as follows: for example, if the angle covered by a blade assembly 13 on the circumferential circumference is from 0° to 30°, then its covered area is the circumferential segment from 0° to 30°. The shared coverage area refers to the circumferential angle range covered by a certain blade assembly 13 of the upper gear train 13x, which partially overlaps with the circumferential angle range covered by the adjacent blade assembly 13 of the lower gear train 13x. For example, if the first blade 13a covers an angle range of 60° to 90° on its circumferential circumference, and the fourth blade assembly 13d of the lower gear train 13x, adjacent to the first blade 13a, covers an angle range of 40° to 70° on its circumferential circumference, then the 60° to 70° angle segment is the shared coverage area. This shared coverage does not mean that the plates of the two blade assemblies 13 are in direct contact, but is achieved by adjusting the circumferential phase and dimensions of the blade assemblies 13 of the two gear trains 13x.

[0042] The core function of this design is to further fill the potential circumferential gaps in the rotating support 12. Even if there is an axial gap between the blade assemblies 13 of the upper and lower wheel systems 13x, the common coverage area on the circumference prevents airflow from directly escaping through the circumferential gap between the upper and lower blade assemblies 13, ensuring that airflow from any circumferential angle on the outer periphery of the rotating assembly 1 can be captured by at least one blade assembly 13. At the same time, since the upper and lower blade assemblies 13 only cover each other at a circumferential angle, rather than making direct axial contact, there will be no mechanical interference during rotation, and smooth rotation can still be maintained.

[0043] It should be noted that this application does not limit the number of blade assemblies 13; preferably, the number is 6. Further, see... Figure 2As shown, the blade assembly 13 also includes several diverter plates 134. These diverter plates 134 are structures that optimize the airflow distribution within the wind-gathering chamber 131 and improve wind energy utilization. Specifically, the diverter plates 134 are spaced apart inside the wind-gathering chamber 131 along a direction perpendicular to the extension of the wind-gathering chamber 131 itself, that is, perpendicular to the path of the wind flowing from the first end 131a to the second end 131b. The diverter plates 134 act as partitions, arranged in an attitude perpendicular to this extension direction, and the multiple diverter plates 134 are evenly spaced. By being fixedly connected to the inner walls of the guide plate 132 and the booster plate 133, the wind-gathering chamber 131 is divided into several independent, side-by-side wind-gathering sub-chambers 134a.

[0044] The structure of each wind-gathering sub-cavity 134a is consistent with the overall shape of the wind-gathering chamber 131. Its end facing the outside of the rotating support 12 is an open sub-port 134b, corresponding to the first end 131a of the wind-gathering chamber 131. Its end inclined towards the inside of the rotating support 12 is a closed sub-end 134c, corresponding to the second end 131b of the wind-gathering chamber 131. At the same time, the extension direction of each wind-gathering sub-cavity 134a, that is, the direction from the sub-port 134b to the sub-end 134c, is consistent with the extension direction of the wind-gathering chamber 131.

[0045] The core function of this multi-cavity design is to optimize the distribution of airflow within the wind-gathering chamber 131. When high-speed airflow enters from the first end 131a of the wind-gathering chamber 131, if it were only a single chamber, the airflow might generate local eddies or uneven velocity due to the large chamber space, resulting in some wind energy being lost without being converted into effective driving force. However, the wind-gathering sub-cavities 134a formed by the diverter 134 can divide the airflow into multiple orderly sub-airflows. Each sub-airflow flows within an independent sub-cavity and is more tightly constrained by the inner wall of the sub-cavity, reducing mutual interference and turbulence between airflows. At the same time, the arrangement of multiple wind-gathering sub-cavities 134a is equivalent to increasing the contact area between wind energy and the chamber wall. The two sides of each diverter 134 can also bear the force of the airflow, dispersing the driving force originally borne by the guide plate 132 and the booster plate 133 to the walls of multiple sub-cavities, forming a more uniform and stronger combined force to drive the blade assembly 13 and the rotating support 12 to rotate.

[0046] Further, see Figure 2As shown, the air-gathering chamber 131 extends along its own direction, from the closed second end 131b to the open first end 131a, exhibiting a gradually increasing diameter. Here, the diameter refers to the cross-sectional dimension of the air-gathering chamber 131 perpendicular to the extension direction. Specifically, the cross-sectional dimension is smallest near the second end 131b; as it extends towards the first end 131a, the cross-sectional dimension gradually increases, ultimately forming the largest open diameter at the first end 131a, resulting in a gradually changing, trumpet-like shape. This design is based on aerodynamic optimization. When airflow enters the air-gathering chamber 131 from the first end 131a, the gradually decreasing diameter guides the airflow naturally towards the second end 131b. Simultaneously, according to fluid dynamics, the airflow velocity gradually increases during the contraction process, allowing wind energy to act more concentratedly on the chamber wall, reducing airflow dispersion or vortex losses caused by abrupt changes in diameter.

[0047] Meanwhile, the second end 131b of the air-gathering chamber 131 adopts a smoothly transitioned closed section design. That is, the closed part of the second end 131b is not formed by right-angle splicing of flat plates, but is closed through an arc-shaped curved surface or a streamlined transition surface. The corners are treated as smooth arcs, so that the inner wall of the chamber forms a continuous, edge-free curved surface at the second end 131b. This design can effectively avoid the airflow from generating turbulence at the end of the chamber due to encountering right angles or sharp edges. When the airflow flows from the first end 131a to the second end 131b along the air-gathering chamber 131, the smooth closed section will guide the airflow to turn naturally along the curved surface, reducing the energy loss caused by airflow impact. At the same time, it makes the force of the airflow on the chamber wall more uniform and continuous, avoiding component wear caused by local stress concentration and extending the service life of the blade assembly 13.

[0048] It is worth noting that the purpose of setting the flow guiding component 2 in this application is to reduce drag. Specifically, such as... Figure 5 As shown in the figure, the solid arrow indicates the wind direction F1, and the dashed arrow indicates the direction of the rotational force F2 generated by the wind on the blade assembly. It can be clearly seen from the figure that when the wind directly faces the wind-gathering chamber 131 of the fourth blade 13d, the guide vane 132 of the blade assembly, being longer than the booster plate 133, can guide the wind. The guide vane 132 of the second blade 13b will direct the wind into its wind-gathering chamber 131. Both the second blade 13b and the fourth blade 13d will guide the rotating assembly 1 around... Figure 5 The first blade 13a rotates clockwise; however, the first blade 13a faces the wind directly onto the booster plate 133. Although the booster plate 133 adopts a streamlined design, it still generates a guide for the rotating assembly 1 to rotate. Figure 5 The counterclockwise rotational resistance in the middle, which will be referred to as back resistance in the following text, is the resistance generated by the wind directly facing the booster plate 133. Therefore, this device adopts the flow guide component 2. The flow guide component 2 is designed to weaken this back resistance and achieve the core purpose of drag reduction.

[0049] Specifically, such as Figure 6 As shown, when several outer baffles 21 of the flow guiding assembly 2 are distributed circumferentially around the outer side of the rotating assembly 1, a gap will naturally form between two adjacent outer baffles 21. This gap constitutes the air inlet / outlet 26, which is the main channel for wind energy to enter the space between the rotating assembly 1 and the flow guiding assembly 2. When the rotating assembly 1 is located at Figure 5 In its current position, the booster plate 133 of the first blade 13a should be directly facing the incoming wind. However, due to the presence of the outer baffle 21, this part of the wind blowing directly onto the booster plate 133 of the first blade 13a is blocked, and the back resistance in the rotating assembly 1 is reduced. Furthermore, the outer baffle 21 further gathers and guides the wind into the wind-gathering chamber 131 of the second blade 13b and the fourth blade 13d, further increasing the utilization rate of wind energy.

[0050] Since the guide vane 132 is longer than the booster plate 133 in the circumferential direction, its extended portion can further receive the airflow guided by the outer baffle 21, redirecting the wind energy that might otherwise generate resistance back into the wind-gathering chamber 131, converting it into a positive driving force from the first end 131a to the second end 131b. At this time, the rotational force F2 experienced by the rotating assembly 1 will exhibit a state where the positive driving force is dominant and the reverse resistance is suppressed. The wind-gathering chamber 131 of the fourth blade 13d and the second blade 13b continuously receive wind energy to generate a clockwise driving force, while the counterclockwise resistance generated by the booster plate 133 of the first blade 13a is significantly weakened by the obstruction and guidance of the outer baffle 21. At the same time, the guided wind energy will also enhance the driving force of other blade components, making the rotating assembly 1 as a whole obtain a more stable and stronger clockwise rotation trend.

[0051] Furthermore, it should be noted that the length of the guide plate 132 in the circumferential direction around the rotating support 12 is longer than the circumferential length of the booster plate 133. Here, circumferential length specifically refers to the extension dimension or angular range covered by the plate in the circumferential direction. For example, the guide plate 132 covers an angular range of 30° to 40° in the circumferential direction, while the booster plate 133 covers an angular range of 10° to 15°. This design allows the open first end 131a of the wind-gathering chamber 131 to have a wider opening in the circumferential direction, enabling it to more fully absorb the wind energy flowing in from the inlet / outlet 26 and improve the wind energy capture range of the wind-gathering chamber 131.

[0052] Most importantly, the device ensures two key correspondences in its structural arrangement. First, regardless of the position of the rotating component 1 around the rotation axis 11, each air inlet / outlet 26 is directly opposite the first end 131a of the wind-gathering chamber 131 of at least one blade assembly 13. This means that after the air flows in from the air inlet / outlet 26, it can always be directly blown towards the open entrance of at least one wind-gathering chamber 131 without relying on a specific rotation angle, avoiding the formation of ineffective circulation between the rotating component 1 and the guide component 2, and ensuring that the air continuously and directionally enters the interior of the wind-gathering chamber 131. Second, each guide outer baffle 21, in its circumferential position, at least blocks at least a portion of one blade assembly 13, ensuring that for... Figure 5 The position of the rotating blades can also reduce back resistance.

[0053] Furthermore, the structural design of the outer baffle 21 can also increase the wind-receiving area, thereby enhancing the efficiency of wind energy capture and utilization. Comparing the wind-receiving areas, the outer baffle 21 is entirely located around the blade assembly 13 and is distributed circumferentially, covering a portion of the outer area of ​​the rotating assembly 1. In contrast, only the outer portion of the guide plate 132 in the blade assembly 13 can serve as a direct wind-receiving surface for natural wind. This wind-receiving surface is not only smaller in area but also has gaps due to the circumferential arrangement of the blade assembly 13. In comparison, the outer baffle 21, located on the outer side and with a suitable individual plate size, can form a more complete and wider wind-receiving area, naturally intercepting more natural wind dispersed around the rotating assembly 1 and preventing a large amount of wind energy from being lost through gaps without reaching the effective wind-receiving components.

[0054] like Figure 7 As shown, the flow guiding assembly 2 is also equipped with several telescopic guide rods 24. These guide rods are used to achieve stable support and adaptive swing of the flow guiding outer baffle 21. Their number corresponds one-to-one with the flow guiding outer baffle 21, ensuring that each flow guiding outer baffle 21 can obtain precise support and motion constraints.

[0055] From the perspective of connection, one end of each telescopic guide rod 24 is rotatably connected to the fixed frame 23 of the device. The fixed frame 23 is the basic support structure of the entire wind turbine generator. Preferably, the fixed frame 23 is made of steel and fixed to the ground or mounting platform. The frame has a pre-set connecting lug. The end of the telescopic guide rod 24 is hinged to the lug through a pin, allowing the guide rod to rotate flexibly around the connection point, avoiding deformation or jamming of the guide rod due to the torque generated by the swing of the outer baffle 21. The other end of the telescopic guide rod 24 is connected to a corresponding outer baffle 21. The connection position is usually selected in the middle of the outer baffle 21 or on the side near the swing axis, which provides stable support for the outer baffle 21 without hindering the rotation of the outer baffle 21 around the pre-set swing axis.

[0056] Under normal conditions with no wind or wind speed less than the preset value, the telescopic guide rod 24 is in a natural supporting state. At this time, the length of the guide rod remains at the initial set value, and its own rigid support force keeps the outer baffle 21 in the initial position furthest from the rotating component 1 within its swing range. This initial position is designed with a clear function: when the outer baffle 21 is at its outermost position, the air inlet and outlet 26 between it and the adjacent outer baffle 21 maintains the maximum opening. At the same time, the wind-receiving area of ​​the outer baffle 21 itself is fully expanded, which can intercept and receive natural wind to the maximum extent, preparing for wind energy capture at low wind speeds and avoiding insufficient wind-catching area at low wind speeds due to the initial position of the outer baffle 21 being too close.

[0057] When the wind force reaches or exceeds the preset value, the outer baffle 21 will deflect inward under the action of the wind. At this time, the telescopic guide rod 24 will adaptively extend and retract with the deflection of the outer baffle 21. Specifically, as the outer baffle 21 swings inward, the telescopic guide rod 24 will gradually shorten due to the force. Preferably, its interior can adopt a sleeve-type telescopic rod structure, which, together with the spring element, can achieve smooth extension and retraction. This will not hinder the deflection action of the outer baffle 21, and can adapt to the position change of the outer baffle 21 in real time through its own extension and retraction, always providing stable support for the outer baffle 21 and avoiding excessive swinging or shaking of the outer baffle 21 due to wind impact. This telescopic feature can also help the outer baffle 21 of the flow guide to reset when the wind force weakens. When the wind force decreases, the supporting force of the telescopic guide rod 24 will push the outer baffle 21 of the flow guide to gradually return to the initial position or the appropriate swing angle, ensuring that the position of the outer baffle 21 of the flow guide is always matched with the real-time wind force, so as to achieve a dynamic balance of fully expanding to capture wind at low wind speeds and moderately contracting to reduce drag at high wind speeds, further improving the working condition adaptability and wind guiding stability of the flow guide component 2.

[0058] More importantly, under normal conditions without wind, the outer baffle 21 maintains its initial position furthest from the rotating component 1 within its swing range. The core purpose is to reserve a pressure relief channel for subsequent airflow and prevent airflow congestion between the rotating component 1 and the guide component 2. For details, see [link to relevant documentation]. Figure 6 As shown, when in the initial position, the installation posture of each guide outer baffle 21 has a clear characteristic. The end away from the preset swing axis, that is, the outer edge of the guide outer baffle 21, will tilt towards the outside of the rotating component 1, forming an outward opening state, rather than keeping parallel to the outer periphery of the rotating component 1. This tilting design creates a smooth path for the subsequent airflow discharge in advance.

[0059] Specifically, the number of the outer baffles 21 of the flow guiding component 2 is set to four, and they are evenly distributed along the outer circumference of the rotating component 1. The gaps between adjacent outer baffles 21 form four independent air inlets and outlets 26. In circumferential order, the first air outlet 26a is formed between the first baffle 21a and the fourth baffle 21d, the second air outlet 26b is formed between the second baffle 21b and the first baffle 21a, the third air outlet 26c is formed between the third baffle 21c and the second baffle 21b, and the fourth air outlet 26d is formed between the fourth baffle 21d and the third baffle 21c. The four air outlets evenly cover the outer circumference of the rotating component 1 to ensure that the airflow can enter and exit from any circumferential position.

[0060] When natural wind blows toward the device in a specific direction, for example, when wind direction F1 happens to blow the first baffle 21a, the wind force will act on the outer surface of the first baffle 21a, pushing the first baffle 21a to deflect inward around the preset swing axis. At this time, the outer edge of the first baffle 21a changes from the initial outward tilt to the inward tilt, and the first air outlet 26a between it and the fourth baffle 21d changes its opening direction accordingly, forming a shape that opens inward toward the rotating assembly 1, thereby directing the external airflow into the space between the rotating assembly 1 and the guide assembly 2, so that it can be captured by the wind-gathering chamber 131 of the blade assembly 13.

[0061] Meanwhile, the second baffle 21b, the third baffle 21c, and the fourth baffle 21d, which are not directly affected by the wind in that direction, remain in their initial positions under the support of the telescopic guide rod 24, with their outer edges continuously tilting outwards towards the rotating component 1. Correspondingly, the second air vent 26b, the third air vent 26c, and the fourth air vent 26d also remain open outwards. This arrangement of one inlet and three rows of air vents achieves efficient airflow. The airflow introduced from the first air vent 26a, after being captured and partially converted by the wind-gathering chamber 131, allows the remaining unused airflow, or airflow generated by the rotation of the rotating component 1, to be quickly discharged outside the device through the outward-opening second air vent 26b, third air vent 26c, and fourth air vent 26d, forming a complete airflow cycle.

[0062] This effectively avoids the problem of increased internal airflow pressure caused by the inability to expel airflow in traditional models. If the airflow cannot be discharged in time, it will form back pressure between the rotating component 1 and the guide component 2, which will hinder the entry of new airflow and even increase the rotational resistance of the rotating component 1. However, this application provides sufficient channels for airflow discharge through the inclined design of the guide outer baffle 21 at the initial position and the coordinated opening of multiple air vents, ensuring that the area around the rotating component 1 is always kept in a low-pressure smooth flow environment, which not only improves the wind energy capture efficiency but also further enhances the drag reduction effect.

[0063] Further, see Figure 7As shown, in order to further ensure the stability and safety of the swinging action of the outer baffle 21, a limiting block 25 is also provided on the fixed frame 23 to limit the swing range of the outer baffle 21. The installation position of the limiting block 25 precisely corresponds to the limit position of the swing range set by the outer baffle 21. By physically blocking, the outer baffle 21 is prevented from swinging beyond the range under the action of wind or during the operation of the equipment, thus ensuring the stable operation of the overall structure of the device.

[0064] Specifically, the swing range of the outer baffle 21 has two key limit positions: one is the initial limit position to the outside, i.e., the initial position under normal windless conditions; the other is the maximum deflection limit position to the inside, i.e., the innermost position to which the outer baffle 21 can deflect when the wind force is at its maximum. The limiting blocks 25 are respectively set on the fixed frame 23 corresponding to these two limit positions. For the initial limit position, the limiting block 25 is set to fit against the outer edge of the outer baffle 21 or the connecting structure. When the outer baffle 21 is in the initial position, its outer side will abut against the limiting block 25, preventing the outer baffle 21 from swinging excessively outward due to external interference such as airflow disturbance or slight equipment vibration when there is no wind or a light breeze. This ensures that the outer baffle 21 always maintains the preset initial posture, preparing for subsequent deflection by wind. For the maximum deflection limit position, the limiting block 25 is set on the outer edge of the outer baffle. On the path of the baffle 21 swinging inward, when the wind force is too strong and the outer baffle 21 tends to deflect excessively inward, the inner edge of the outer baffle 21 or the connected telescopic guide rod 24 will contact the limiting block 25. Through the blocking effect of the limiting block 25, the outer baffle 21 is restricted from continuing to swing inward, preventing it from colliding with the blade assembly 13 of the rotating component 1 due to excessive deflection, or causing the air guiding direction to deviate from the first end 131a of the wind gathering chamber 131 due to excessive deflection, thus affecting the air guiding effect.

[0065] Furthermore, the structural design of the limiting block 25 fully considers practicality and durability. Preferably, a buffer pad, such as a rubber pad, is added. This not only withstands the impact force when the outer baffle 21 swings, preventing damage to itself, but also reduces friction and collision noise when in contact with the outer baffle 21, extending the service life of both the outer baffle 21 and the limiting block 25. Simultaneously, the installation position of the limiting block 25 can be finely adjusted according to actual installation requirements, ensuring precise matching of the swing range of outer baffles 21 of different sizes, further improving the adaptability and operational reliability of the device.

[0066] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotating assembly for engaging with a generator drive to generate electricity, characterized in that, It includes a rotating support (12) and a plurality of blade assemblies (13), the rotating support (12) being circumferentially rotatable about a rotating axis (11), and the plurality of blade assemblies (13) being circumferentially mounted on the rotating support (12); Each blade assembly (13) is provided with a wind-gathering chamber (131), the wind-gathering chamber (131) having a first end (131a) and a second end (131b). The first end (131a) is open and inclined toward the outside of the rotating support (12). The second end (131b) is closed and inclined toward the inside of the rotating support (12). The wind-gathering chamber (131) is streamlined and converges from the first end (131a) to the second end (131b).

2. The rotating assembly according to claim 1, characterized in that, Each blade assembly (13) includes a guide vane (132) and a booster plate (133), both of which are streamlined structures that bend in the same direction toward the inside of the rotating support (12). The guide vane (132) and the booster plate (133) are connected to form the wind-gathering chamber (131).

3. The rotating assembly according to claim 1, characterized in that, Multiple blade assemblies (13) are distributed along the axial direction of the rotating support (12) and form two upper and lower gear trains (13x). The blade assemblies (13) in the two gear trains (13x) are arranged in an alternating pattern, and the multiple blade assemblies (13) in the two gear trains (13x) form a complete cover along the circumference of the rotating support (12).

4. The rotating assembly according to claim 3, characterized in that, Any blade assembly (13) in the upper gear train (13x) and the blade assembly (13) in the adjacent lower gear train (13x) share a common area on the circumferential circumference centered on the rotation axis (11).

5. The rotating assembly according to claim 3, characterized in that, Each blade assembly (13) further includes a plurality of diverter plates (134), which are spaced apart in the wind-gathering chamber (131) along a direction perpendicular to the extension of the wind-gathering chamber (131) and divide the wind-gathering chamber (131) into a plurality of independent wind-gathering sub-chambers (134a); each wind-gathering sub-chamber (134a) has an open sub-port (134b) facing outward of the rotating support (12) and a closed sub-end (134c) inclined inward of the rotating support (12), and the extension direction of the wind-gathering sub-chamber (134a) is consistent with that of the wind-gathering chamber (131).

6. A wind power generation device, characterized in that, The rotating assembly includes any one of claims 1-5 and further includes a flow guiding assembly (2). The flow guiding assembly (2) includes a plurality of flow guiding outer baffles (21) that surround the outside of the rotating assembly (1) in a circumferential direction. The flow guiding outer baffles (21) can swing inward about a preset swing axis. When subjected to wind force, the flow guiding outer baffles (21) deflect inward, thereby guiding the wind to the first end (131a), so that the wind exerts a force on the wind gathering chamber (131) from the first end (131a) to the second end (131b), thereby driving the rotating assembly (1) to rotate circumferentially about the rotating axis (11).

7. The wind power generation device according to claim 6, characterized in that, An air inlet / outlet (26) is formed between two adjacent outer baffles (21); when the rotating assembly (1) is rotated to any position, the air inlet / outlet (26) is at least directly facing the first end (131a) of the wind-gathering chamber (131) of one of the blade assemblies (13), and any outer baffle (21) at least blocks a part of one of the blade assemblies (13).

8. The wind power generation device according to claim 7, characterized in that, The flow guiding component (2) also includes several telescopic guide rods (24). One end of each telescopic guide rod (24) is rotatably connected to the fixed frame (23), and the other end is correspondingly connected to a flow guiding outer baffle (21). Under normal conditions where there is no wind or the wind force is less than a preset value, the telescopic guide rod (24) is in a supporting state, supporting the flow guiding outer baffle (21) at the initial position furthest from the rotating component (1) within its set swing range, and the telescopic guide rod (24) can adaptively extend and retract as the flow guiding outer baffle (21) deflects inward.

9. The wind power generation device according to claim 8, characterized in that, The number of the flow guide outer baffles (21) is four, and they are evenly arranged on the outside of the rotating component (1) along the circumference. When one of the flow guide outer baffles (21) is deflected inward by the wind force, the other three flow guide outer baffles (21) are in the initial position.

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