A wind power generation device and an energy storage system thereof

Abstract

The wind power generation device comprises an energy storage mechanism and a power generation mechanism arranged at the upper end of the energy storage mechanism. The power generation mechanism comprises a driving assembly, the driving assembly comprises a driving shaft, the upper and lower ends of the driving shaft are provided with fixed rings, the outer side of the driving shaft is provided with a plurality of rotatable fan blades arranged between the upper and lower fixed rings, the lower part of the driving shaft is provided with an extension end, the extension end is rotatably embedded with an adjusting assembly, the adjusting assembly comprises an adjusting disc, an annular partition plate is coaxially arranged in the cavity of the adjusting disc, the hollow disc cavity is coaxially divided into a central circular inner cavity and a peripheral annular outer cavity by the annular partition plate, a plurality of limiting assemblies connected with the lower fixed ring are arranged in the inner cavity, a plurality of counterweight assemblies are arranged in the outer cavity, and a support frame is further arranged. The adjusting disc is rotatably embedded in the support frame and is self-adaptively adjusted, so that the device is more efficient.

Description

Technical Field

[0001] This invention relates to the field of wind power generation technology, specifically to a wind power generation device and its energy storage system. Background Technology

[0002] Wind power generation refers to the conversion of the kinetic energy of wind into mechanical kinetic energy, and then into electrical kinetic energy. It involves the wind turbine rotating under the action of wind, converting the kinetic energy of the wind into the mechanical energy of the turbine shaft, and the generator rotating under the drive of the turbine shaft to generate electricity. It is an important form of wind energy utilization. Wind turbines include vertical wind turbines and horizontal wind turbines. Horizontal wind turbines are usually used in large wind farms, while vertical wind turbines have a simpler structure, lower noise, and are suitable for urban or small-scale applications.

[0003] Both vertical and horizontal wind turbines need to actively seek and align with the wind direction during power generation. Horizontal wind turbines are technologically mature, possessing a complete autonomous control steering system capable of automatically adjusting to wind direction. However, due to their relatively lower cost, vertical wind turbines typically lack the ability to actively adjust wind direction. Current vertical wind turbines are mostly fixed structures, resulting in higher power generation efficiency with the wind direction and extremely low efficiency against the wind direction. Therefore, it is necessary to improve the autonomous adaptation capabilities of vertical wind turbines when encountering various wind directions. This technical challenge requires addressing... For example, the vertical axis wind power generation device with application number CN201821094481.7 increases the blade curvature to improve airflow from various wind directions. However, although it achieves the same power generation efficiency regardless of the wind direction, the power generation efficiency is far lower than the maximum power generation efficiency of traditional fan blades in the direction of airflow due to the fixed structure. On average, the device in this prior art does not show a significant improvement in efficiency. Therefore, the current prior art still has technical problems in practical applications. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a wind power generation device and its energy storage system, solving the problems mentioned in the background section.

[0005] The technical solution of this invention is as follows: To achieve the above objectives, the present invention is implemented through the following technical solution: A wind power generation device includes an energy storage mechanism and a power generation mechanism disposed at the upper end of the energy storage mechanism. The power generation mechanism includes a drive assembly, which includes a drive shaft with fixed rings at both its upper and lower ends. Multiple rotatable blades are disposed between the upper and lower fixed rings on the outer circumference of the drive shaft. The lower part of the drive shaft has an extension end, and an adjustment assembly is rotatably mounted on the exterior of the extension end. The adjustment assembly includes an adjustment disk. An annular partition plate is coaxially arranged inside the cavity of the adjustment disk, which coaxially divides the hollow disk cavity into a central circular inner cavity and an outer annular outer cavity. Multiple sets of limiting components connected to the lower fixed rings are installed in the inner cavity, and multiple sets of counterweight components are installed in the outer cavity. The device also includes a support frame, and the adjustment disk is rotatably mounted on the support frame.

[0006] Preferably, a fixing block is fixed on the outer side of the lower extension end of the drive shaft, and the drive shaft is embedded in the middle of the adjustment plate through the fixing block. The lower part of the drive shaft also has an output end, which is connected to the power transmission of the power generation mechanism. The rotation of the drive shaft drives the power generation mechanism to output electrical energy.

[0007] Preferably, the adjusting plate has a mounting hole in the middle, the inner side of the mounting hole has a groove structure, the fixing block is embedded in the groove structure of the mounting hole, and multiple balls are provided between the inner side of the mounting hole and the outer side of the fixing block.

[0008] Preferably, the inner circumference of the fixed ring is provided with multiple connecting arms fixed to the drive shaft, and a limiting slide is provided on the outer circumference of the lower fixed ring corresponding to the fan blade position. The limiting slide has an arc-shaped structure and a sliding hole in the middle.

[0009] Preferably, the fan blades are arranged vertically and have an overall rectangular structure. Fixed shafts are provided at the middle of both the upper and lower ends of the fan blades. The fan blades are rotatably assembled between two fixed rings through the fixed shafts. The radial cross-section of the fan blades is an airfoil structure, with the wide end being the windward end and the narrow end being the leeward end. A connecting rod extends from the bottom of the windward end of the fan blades. The connecting rod is limited in the corresponding sliding hole and extends and is fixed to the upper surface of the adjustment plate.

[0010] Preferably, multiple baffles are evenly distributed inside the inner cavity, and the baffles are arranged radially and evenly, dividing the inner cavity into multiple independent chambers; a first spring is fixedly installed at the middle position on both sides of each baffle, and the first spring extends towards the center of the corresponding chamber. Each chamber has two first springs, and the two first springs in each chamber are respectively set with a fixing ring.

[0011] Preferably, the lower end face of the lower fixing ring is provided with a connecting rod extending into the inner cavity, and two limiting rods that are relatively V-shaped and unfolded on the left and right sides of the lower end of the connecting rod are provided, and the two limiting rods are fixedly connected to the first springs on both sides of the cavity.

[0012] Preferably, the outer cavity includes a plurality of outwardly opening channels evenly distributed on the periphery of the adjustment disc. A second spring is fixedly installed in the channel, and the end of the second spring extends toward the opening of the channel. A counterweight is fixedly installed at the extended end, and the outer end of the counterweight has an arc-shaped structure.

[0013] Preferably, the upper end of the support frame is provided with a mounting ring, the inner side of which is a concave groove structure, and protrusions are arranged on the inner wall of the groove. The adjusting plate is rotatably disposed in the groove of the mounting ring.

[0014] According to another aspect of this application, an energy storage system is provided, including an energy storage battery and the aforementioned wind power generation device, wherein the energy storage battery is connected to the wind power generation device.

[0015] Beneficial effects This invention provides a wind power generation device and its energy storage system, which have the following beneficial effects: (1) By setting a limiting component, the two first springs set opposite each other in each chamber are tensioned to keep the point of the fixed shaft of the fan blade on the fixed ring and the point of the bottom connecting rod of the fan blade with the adjusting plate fixed on the same axis. This makes the windward end of the fan blade always face inward when it is stationary. At this time, no matter which direction the airflow blows, the fan blade will contact the airflow with a larger side force surface to complete the rapid start.

[0016] (2) When the fan blades come into contact with the airflow in this device, they drive the drive shaft to rotate first. The first spring on the force side in the corresponding chamber is squeezed, causing the adjustment plate to shift, thereby causing the adjustment plate to rotate towards the windward side and change the angle of the fan blades. The windward end of the fan blades always remains on the side opposite to the airflow, thereby effectively improving the rotation efficiency. At the same time, the first spring on the other side uses tension to keep the angle of the fan blades during rotation, avoiding uneven force caused by excessive twisting amplitude. In addition, the sliding hole set on the lower fixing ring causes the fan blades to move in an arc along the sliding hole under the drive of the connecting rod, keeping them in a limited position.

[0017] (3) During the rotation of the regulating disc in this device, the counterweight is thrown due to centrifugal force and kept in the channel by the pull of the second spring. Through its own counterweight, the speed of the device is increased under the action of centrifugal force. In extreme weather conditions, the speed of the device is too fast and the counterweight is thrown out of the channel under the action of centrifugal force. At this time, the arc surface of the counterweight contacts and collides with the protrusion in the groove of the mounting ring, increasing the friction and slowing down the device. The contact surface of the counterweight is an arc structure, which avoids the risk of the device suddenly locking up when the collision occurs, thereby controlling the speed of the device and avoiding the problem of shaking deformation or damage to the device caused by excessive speed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the wind power generation device of the present invention; Figure 2 This is a schematic diagram of the power generation mechanism of the wind power generation device of the present invention; Figure 3 This is a schematic diagram of the drive component structure of the wind power generation device of the present invention; Figure 4 for Figure 3 A partial structural diagram of A in the middle; Figure 5 This is a schematic diagram of the regulating component structure of the wind power generation device of the present invention; Figure 6 This is a schematic diagram of the installation ring structure of the wind power generation device of the present invention; Figure 7 This is a schematic diagram of the counterweight structure of the wind power generation device of the present invention; Figure 8 This is a top view of the fan blades of the wind power generation device of the present invention; Figure 9 This is a schematic diagram of the energy storage system of the present invention.

[0019] In the picture: 11. Wind power generation device; 22. Energy storage system; 1. Energy storage mechanism; 2. Support frame; 201. Mounting ring; 3. Drive shaft; 301. Fixing ring; 302. Fan blade; 303. Fixing shaft; 304. Limiting slide; 305. Connecting rod; 306. Connecting arm; 307. Fixing block; 308. Ball bearing; 4. Adjusting disc; 401. Mounting hole; 402. Inner cavity; 403. Outer cavity; 404. Channel; 405. Baffle; 406. First spring; 5. Connecting rod; 501. Limiting rod; 6. Second spring; 601. Counterweight. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Example 1: Combination Figure 1 This invention discloses a wind power generation device 11 and its energy storage system 22, comprising an energy storage mechanism 1, a power generation mechanism, an adjustment component, a limit component, a counterweight component, and a support frame 2. With a drive shaft 3 as the core transmission base, it relies on multiple sets of springs, connecting rods 305, ball bearings 308, and a counterweight structure to form a linkage, enabling the fan blades 302 to adaptively adjust their angle according to the wind direction, and automatically increase and limit the equipment speed. This solves the defects of existing vertical wind turbines, such as poor wind direction adaptability, low power generation efficiency, and susceptibility to overspeed damage in extreme weather. The energy storage system 22 relies on this wind power generation device 11 to complete the collection and storage of electrical energy.

[0024] Combination Figure 1 The device consists of a power generation mechanism and an energy storage mechanism 1, arranged from top to bottom. The power generation mechanism is mounted on top of the energy storage mechanism 1, and the electrical energy generated by the power generation mechanism is directly transmitted to the energy storage mechanism 1 for storage. The power generation mechanism uses a drive component as its core power output component. A rotatable adjustment component is installed on the outside of the drive component. The bottom of the adjustment component is supported and positioned by a support frame 2. The drive component, adjustment component, limit component, and counterweight component are interconnected to jointly complete wind energy capture, angle adjustment, and speed control.

[0025] Combination Figure 1 2,3. The drive shaft 3 is a vertical coaxial rod, divided into a main body section, a lower extension end, and a bottom output end. The lower extension end is used to install adjustment components, and the bottom output end is connected to the power generation unit of the power generation mechanism. When the drive shaft 3 rotates, it can directly drive the power generation unit to output electrical energy. A fixing ring 301 is installed at each of the upper and lower ends of the drive shaft 3. The inner side of the fixing ring 301 is fixed to the outer wall of the drive shaft 3 by multiple connecting arms 306, so that the fixing ring 301 and the drive shaft 3 remain coaxial and rotate synchronously without relative displacement.

[0026] Combination Figure 1 2,3. On the outer periphery of the lower fixing ring 301, an arc-shaped limiting slide 304 is provided corresponding to the position of each fan blade 302. A through slide hole is provided in the middle of the limiting slide 304. The slide and the slide hole together form a motion limit for the bottom connecting rod 305 of the fan blade 302, limiting the movement trajectory and range of the connecting rod 305.

[0027] Combination Figure 8 The fan blades 302 are arranged in a vertical rectangle with an airfoil-shaped radial cross-section. The wider end of the cross-section is the windward end, and the narrower end is the leeward end. This cross-sectional structure maximizes wind energy capture. Each fan blade 302 has a fixed shaft 303 at the middle of both its upper and lower ends. The fan blade 302 is rotatably mounted between two fixed rings 301 via these two fixed shafts 303, allowing the fan blade 302 to deflect slightly around its fixed shaft 303. A connecting rod 305 extends downwards from the bottom of the fan blade 302 at the windward end. The lower end of the connecting rod 305 passes through a sliding hole in the lower fixed ring 301 and is finally fixed to the upper surface of the adjusting disc 4. The connecting rod 305 can slide in an arc along the arc-shaped limiting slide 304 to accommodate the angle deflection of the fan blade 302.

[0028] Combination Figure 1 5,6. The adjustment assembly is rotatably mounted on the outer side of the lower extension end of the drive shaft 3, and is rotatably mounted on the support frame 2. It mainly includes an adjustment disc 4 and an annular partition plate. The adjustment disc 4 is a hollow disc structure, with a coaxially fixed ring 301-shaped partition plate inside. The annular partition plate coaxially divides the internal cavity of the adjustment disc 4 into two independent cavities: a central circular inner cavity 402 and an outer annular cavity 403. The inner cavity 402 is used to house the limiting assembly, and the outer cavity 403 is used to house the counterweight assembly. A mounting hole 401 is opened at the center of the adjustment disc 4, and the inner wall of the mounting hole 401 has a groove structure. A fixing block 307 is fixedly installed on the outer side of the lower extension end of the drive shaft 3, and the fixing block 307 is entirely embedded in the groove of the mounting hole 401. Multiple balls 308 are evenly arranged between the outer side of the fixed block 307 and the inner side of the groove of the mounting hole 401. The relative rotation between the drive shaft 3 and the adjusting plate 4 is achieved by the balls 308. The two can rotate coaxially with low rotational resistance. At the same time, the balls 308 play a radial limiting role to ensure the coaxiality of the assembly.

[0029] Combination Figure 2The limiting component is arranged in the central cavity 402 of the adjusting disk 4 to adaptively adjust the angle of the fan blade 302 in accordance with the wind direction, while limiting the torsional amplitude of the fan blade 302. Multiple radially arranged baffles 405 are uniformly fixed inside the cavity 402, dividing the cavity 402 into multiple independent chambers. A first spring 406 is fixed to the center of both sides of each baffle 405, extending towards the center of the chamber. Two first springs 406 are symmetrically arranged in each independent chamber. A connecting rod 5 extends downward from the lower end of the lower fixing ring 301, penetrating into the cavity 402 of the adjusting disk 4. Two V-shaped limiting rods 501 branch off from the lower end of the connecting rod 5, and are fixedly connected to the ends of the two first springs 406 in their respective chambers. Under normal conditions, the first springs 406 on both sides maintain their initial tension, forming a positioning constraint through the limiting rod 501, connecting rod 5, lower fixing ring 301, and fan blade 302 connecting rod 305, keeping the fan blade 302 in a fixed posture. When the wind direction changes or the fan blade 302 is deflected by force, the connecting rod 305, fixing ring 301, and connecting rod 5 will drive the limiting rod 501 to squeeze or stretch the first spring 406 on the corresponding side, relying on the spring force to achieve adaptive angle adjustment and reset.

[0030] As shown in Figure 8, the counterweight assembly is arranged within the annular outer cavity 403 surrounding the regulating disc 4. Its main function is to automatically increase the speed of the equipment using centrifugal force, and simultaneously decelerate and brake in overspeed conditions. Multiple outwardly penetrating channels 404 are evenly distributed around the sides of the regulating disc 4, and all channels 404 together form the movable space of the outer cavity 403. A second spring 6 is fixed inside each channel 404, with its end extending towards the opening of the channel 404. A counterweight block 601 is fixed to the free end of the second spring 6; the outer end face of the counterweight block 601 has an arc-shaped structure. Under normal operating conditions and speed, the second spring 6 remains in a contracted state, housing the counterweight block 601 inside the channel 404. When the equipment speed increases, the counterweight block 601 slides outward from the channel 404 under the action of centrifugal force, stretching the second spring 6. When the speed exceeds the limit, the counterweight block 601 completely slides outward from the channel 404, contacting the external structure to generate frictional deceleration.

[0031] Combination Figure 1 The support frame 2 serves as the supporting and positioning structure for the adjustment component. An integral mounting ring 201 is installed at the upper end of the support frame 2. The inner side of the mounting ring 201 is machined into a recessed groove, with multiple protrusions arrayed on the inner wall of the groove. The adjustment disc 4 is rotatably embedded inside the groove of the mounting ring 201. The mounting ring 201 provides axial support and radial limiting for the adjustment disc 4. Furthermore, when the equipment overspeeds, the arc-shaped end face of the sliding counterweight 601 contacts and rubs against the protrusions in the groove, thus achieving speed limiting protection.

[0032] Combination Figure 1The energy storage system 22 includes an energy storage battery, which is electrically connected to the power generation unit of the wind power generation device 11. The electrical energy generated by the wind power generation device 11 can be directly transmitted to the energy storage battery for storage, realizing the conversion and storage of wind energy into electrical energy.

[0033] Example 2: When there is no wind or the wind is extremely weak, the entire device is in a static standby state.

[0034] The first springs 406 in each chamber of the cavity 402 inside the regulating disc 4 maintain initial pretension, forming a positioning constraint on the lower fixing ring 301 through the limiting rod 501 and the connecting rod 5. The lower fixing ring 301, together with the fixing shafts 303 at the upper and lower ends of the fan blades 302 and the bottom connecting rod 305, uniformly restricts all fan blades 302 to the initial posture: the windward end of the fan blades 302 faces the inside of the device, and the relative positions of the fan blades 302, the fixing ring 301, and the regulating disc 4 remain fixed. At this time, the second spring 6 in the outer cavity 403 is in a naturally contracted state, and the counterweight 601 is completely housed inside the channel 404, without contact with the support frame 2. The drive shaft 3, the power generation mechanism, and the energy storage mechanism 1 all remain stationary.

[0035] When airflow is generated in any direction, since the initial posture of the fan blade 302 is that the large-area force-bearing surface is facing outward, the airflow can act on the large-area side of the fan blade 302 regardless of the wind direction, pushing the fan blade 302 to rotate around its own fixed axis 303, thereby causing the upper and lower fixed rings 301 and the drive shaft 3 to start rotating synchronously, and the device starts up quickly.

[0036] During startup, the connecting rod 305 at the bottom of the fan blade 302 slides slightly along the arc-shaped limiting slide 304 of the lower fixing ring 301. Simultaneously, the connecting rod 305 causes the adjusting disc 4 to deflect slightly. When the adjusting disc 4 deflects, the first spring 406 on one side of the inner cavity 402 is compressed, and the first spring 406 on the other side is stretched. The spring force balances the force on the fan blade 302 in real time, preventing significant torsion and angular imbalance, thus ensuring a smooth startup process. The output end at the bottom of the drive shaft 3 synchronously drives the power generation mechanism to operate, initiating initial power generation.

[0037] After the equipment is started, it enters normal wind power operation, and the airflow continuously acts on the fan blades 302.

[0038] The fan blade 302's angle adaptive adjustment: Airflow continuously pushes the fan blade 302, ensuring the force-bearing end of the blade 302 always faces the wind direction. The fan blade 302, via the bottom connecting rod 305, drives the adjusting disc 4 to continuously deflect in the downwind direction. During the deflection of the adjusting disc 4, the first spring 406 on the windward side is continuously compressed, while the first spring 406 on the leeward side is continuously stretched. The elastic forces of the two sets of first springs 406 work together, on the one hand pushing the windward end of the fan blade 302 to always face the airflow direction, maximizing wind energy capture and improving rotational efficiency; on the other hand limiting the twisting angle of the fan blade 302, preventing excessive deflection and uneven overall force distribution. Simultaneously, the connecting rod 305 always moves within the arc-shaped limiting slide 304 and the sliding hole, mechanically limiting the trajectory of the connecting rod 305 to ensure stable angle adjustment.

[0039] Centrifugal counterweight-assisted speed increase: As the drive shaft 3 and the regulating disc 4 rotate continuously, the counterweight 601 on the regulating disc 4 generates centrifugal force with the rotation. Within the normal speed range, the centrifugal force is less than the maximum tension of the second spring 6, and the counterweight 601 only moves slightly outward within the channel 404, without disengaging from the channel 404. The counterweight 601 rotates synchronously with the regulating disc 4, generating additional centrifugal torque by its own weight, which helps to increase the overall speed of the drive shaft 3, further enhancing the wind energy utilization efficiency.

[0040] The drive shaft 3 rotates continuously, driving the power generation mechanism to output electrical energy stably. The electrical energy is delivered to the energy storage battery in real time to complete the storage, realizing normal wind power generation and energy storage. The power generation mechanism is an existing power generation device, which will not be described in detail here.

[0041] When encountering extreme weather such as strong winds, the airflow velocity increases significantly, and the rotational speed of the drive shaft 3 and the regulating disc 4 increases sharply, entering an overspeed state. The device automatically triggers the speed limit protection mechanism. As the rotational speed continues to increase, the centrifugal force on the counterweight 601 increases continuously, gradually overcoming the elastic force of the second spring 6, and sliding from the inside of the channel 404 to the outside until it completely slides out of the opening of the channel 404.

[0042] The outer arc-shaped end face of the sliding counterweight 601 continuously contacts, collides, and rubs against the protrusion in the groove of the mounting ring 201 of the support frame 2. The arc-shaped contact surface can prevent the equipment from locking up instantly due to rigid impact. It relies on sliding friction and flexible collision to continuously consume rotational kinetic energy, forcibly reducing the rotational speed of the regulating plate 4, drive shaft 3, and the entire power generation mechanism.

[0043] After the rotational speed drops back to the safe range, the centrifugal force on the counterweight 601 decreases, and the second spring 6 rebounds and pulls the counterweight 601 back into the channel 404. The frictional deceleration effect disappears, and the device returns to the normal speed-up operation state.

[0044] This process is a dynamic cycle, which can keep the equipment speed within a safe range at all times, avoiding machine shaking, structural deformation or damage to parts due to excessive speed.

[0045] As the wind gradually decreases until it stops, the thrust of the airflow on the fan blades 302 disappears. At this time, the first spring 406, which was compressed and stretched in the inner cavity 402, gradually returns to its original position, causing the limit rod 501, connecting rod 5, fixing ring 301, and fan blades 302 to return to their initial posture; the counterweight 601 in the outer cavity 403 completely retracts into the channel 404 under the action of the second spring 6. The speed of the drive shaft 3 gradually decreases, and finally the entire device returns to a static standby state, the power generation operation stops, and it waits for the next wind to start. The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects. The scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of the equivalents of the claims be included within the present invention, and no reference numerals in the claims should be regarded as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wind power generation device (11) comprising an energy storage mechanism (1) and a power generation mechanism arranged at an upper end of the energy storage mechanism (1), characterized in that: The power generation mechanism includes a drive assembly, which includes a drive shaft (3). Both ends of the drive shaft (3) are provided with fixing rings (301). The outer circumference of the drive shaft (3) has multiple rotatable fan blades (302) arranged between the upper and lower fixing rings (301). The lower part of the drive shaft (3) has an extension end. An adjustment assembly is rotatably embedded in the extension end. The adjustment assembly includes an adjustment disk (4). An annular partition plate is coaxially arranged inside the cavity of the adjustment disk (4). The annular partition plate coaxially divides the hollow disk cavity into a central circular inner cavity (402) and an outer annular outer cavity (403). The inner cavity (402) is equipped with multiple sets of limiting components connected to the lower fixing ring (301). The outer cavity (403) is equipped with multiple sets of counterweight components. It also includes a support frame (2). The adjustment disk (4) is rotatably embedded in the support frame (2).

2. A wind power plant (11) according to claim 1, characterized in that: A fixing block (307) is fixed on the outer side of the lower extension end of the drive shaft (3). The drive shaft (3) is embedded in the middle of the adjustment plate (4) through the fixing block (307). The lower part of the drive shaft (3) also has an output end, which is connected to the power transmission of the power generation mechanism. The rotation of the drive shaft (3) drives the power generation mechanism to output electrical energy.

3. A wind power plant (11) according to claim 2, characterized in that: The adjustment disc (4) has a mounting hole (401) in the middle. The inner side of the mounting hole (401) has a groove structure. The fixing block (307) is embedded in the groove structure of the mounting hole (401). Multiple balls (308) are provided between the inner side of the mounting hole (401) and the outer side of the fixing block (307).

4. A wind power plant (11) according to claim 1, characterized in that: The inner circumference of the fixed ring (301) is provided with multiple connecting arms (306) fixed to the drive shaft (3). The outer circumference of the lower fixed ring (301) is provided with a limiting slide (304) corresponding to the position of the fan blade (302). The limiting slide (304) is an arc-shaped structure and has a sliding hole in the middle.

5. A wind power generation device (11) according to claim 2, characterized in that: The fan blade (302) is arranged vertically and has a rectangular structure. The fan blade (302) has a fixed shaft (303) at the middle of both the upper and lower ends. It is rotatably mounted between the upper and lower fixed rings (301) through the fixed shaft (303). The radial section of the fan blade (302) is an airfoil structure. The wide end of the section is the windward end and the narrow end is the leeward end. A connecting rod (305) extends from the bottom of the windward end of the fan blade (302). The connecting rod (305) is limited in the corresponding sliding hole and extends and is fixed on the upper surface of the adjustment plate (4).

6. A wind power generation device (11) according to claim 1, characterized in that: The inner cavity (402) is evenly distributed with multiple baffles (405), which are radially evenly distributed and divide the inner cavity (402) into multiple independent chambers. Each baffle (405) has a first spring (406) fixedly installed in the middle of its left and right sides. The first spring (406) extends toward the center of the corresponding chamber. Each chamber has two first springs (406), and the two first springs (406) in each chamber are respectively set to the fixing ring (301).

7. A wind power generation device (11) according to claim 6, characterized in that: The lower end face of the fixed ring (301) is provided with a connecting rod (5) extending into the inner cavity (402). The lower end of the connecting rod (5) is provided with two limiting rods (501) that are relatively V-shaped and unfolded. Both limiting rods (501) are fixedly connected to the first springs (406) on both sides of the cavity.

8. A wind power generation device (11) according to claim 1, characterized in that: The outer cavity (403) includes a plurality of outwardly openings and evenly distributed holes (404) on the side of the adjustment disk (4). A second spring (6) is fixed inside the hole (404). The end of the second spring (6) extends toward the opening of the hole (404), and a counterweight (601) is fixed at the extended end. The outer end of the counterweight (601) has an arc-shaped structure.

9. A wind power generation device (11) according to claim 1, characterized in that: The support frame (2) is provided with an installation ring (201) at its upper end. The inner side of the installation ring (201) is a concave groove structure. The inner wall of the groove is provided with protrusions. The adjustment plate is rotatably set in the groove of the installation ring (201).

10. An energy storage system (22), comprising an energy storage battery and a wind power generation device (11) as described in any one of claims 1-9, characterized in that: The energy storage battery is connected to the wind power generation device (11).

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