Driving mechanism for power generation and power generation device

Abstract

The application relates to the field of power generation device design and provides a driving mechanism for power generation and a power generation device. The driving mechanism is fixedly installed on a motor shaft of a power generation motor and is used for receiving external fluid flow kinetic energy to drive the power generation motor to rotate and generate power. The driving mechanism comprises a mounting portion and a plurality of flexible blades. Each flexible blade comprises a blade framework composed of a plurality of connecting joints. The outer surface of the blade framework is covered with a covering layer made of flexible material. The covering layer is used for receiving external fluid kinetic energy and deforming according to the fluid flow direction. The blade framework is used for keeping the shape of the covering layer and limiting the deformation degree of the covering layer, so that the flexible blade can controllably deform according to the change of the fluid flow direction. The driving mechanism can drive the motor shaft to rotate in one direction to generate power under the condition of receiving fluid energy in different directions. The utilization rate of energy of the driving mechanism is improved, and the power generation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of power generation device design, and more specifically to a power generation drive mechanism and power generation device. Background Technology

[0002] Currently, clean and environmentally friendly new energy sources such as wind power and hydropower do not consume limited coal resources or precious non-renewable resources, and are more conducive to the sustainable development of the national economy. Developing efficient and reliable new energy power generation equipment tailored to the specific characteristics of each region across the country is highly promising. To achieve the industrialization and practical application of new energy, high-efficiency products are required, maximizing the capture of natural energy by generators and generating highly efficient energy conversion.

[0003] Existing wind and hydropower generation methods involve fixing an impeller to the shaft of a generator. The kinetic energy of flowing water or air drives the impeller to rotate, which in turn drives the generator to generate electricity. Taking wave energy generation, which uses water kinetic energy as its power source, as an example, most existing wave generators use fixed-blade air impellers. These impellers are simple in structure and easy to maintain. However, in terms of the actual motion of waves, the water flow direction relative to the generator is reciprocating. That is, the water flow has two directions in the generator's axial direction, but the actual power generation process can only receive the flow energy in one direction. For ease of description, let's illustrate this with an example. When the water flows towards the front of the impeller, the generator rotates clockwise to generate electricity. When the water flows towards the back of the impeller, the generator rotates counterclockwise. In this case, the generator does not generate electricity when it rotates in the opposite direction. Therefore, the fixed-blade air impeller generator can only utilize the flow energy of water in one direction, resulting in low energy utilization efficiency.

[0004] In summary, to improve power generation efficiency, the primary challenge facing the industry is how to enable generators to rotate in one direction to generate electricity when energy is input through multi-directional fluid flow.

[0005] To address the aforementioned issues, existing technologies employ one-way valves to control the direction of fluid flow, thereby causing the impeller to rotate in one direction. However, this approach suffers from numerous intermediate components and a complex structure. In particular, the equipment is prone to damage in the high-salt and highly corrosive marine environment where wave energy is generated. The cost of replacing and redeploying the equipment far exceeds the revenue generated, which contradicts the original design intent of the device.

[0006] Existing technologies also include making fixed-wing impellers from blades with dihedral angles. However, due to the complex shape of the blades, a larger blade volume is required to meet the cutting design of the shape. This results in a larger blade mass and a greater demand for the received kinetic energy. In light winds or slow-moving sea areas, the generator basically does not operate to generate electricity. Summary of the Invention

[0007] In some embodiments of this application, a drive mechanism and a power generation device are provided, which solve the problem of how to achieve unidirectional rotation of the generator motor to generate electricity when energy input is applied by multi-directional fluid flow.

[0008] In some embodiments of this application, the blades have been improved. The blades are made of flexible materials and are planar in normal conditions. In a fluid flow environment, they undergo adaptive torsional deformation along the direction of fluid flow, absorbing the kinetic energy of the fluid flow. By utilizing the adaptive torsional deformation mode of the flexible blades, since the deformation shape of the flexible impeller can change with the direction of the fluid, the fluid pressure on the flexible impeller is always in the same direction, regardless of the direction of fluid flow relative to the flexible impeller. That is, the component force pressure generated by the fluid flow pressure on the deformation direction of the flexible impeller is in the same direction. Therefore, the rotation direction of the flexible impeller remains unchanged. This is the most basic principle of this invention.

[0009] In some embodiments of the present invention, a drive mechanism for generating electricity is disclosed, which includes a mounting part, a plurality of fixed shafts uniformly fixed on the mounting part in a circumferential direction, and flexible blades fixedly connected to the fixed shafts.

[0010] Each flexible blade includes a blade skeleton and a covering layer covering the outer surface of the blade skeleton. Both the blade skeleton and the covering layer are fixedly connected to a fixed shaft at one end.

[0011] The cladding layer is made of a flexible material to receive external fluid kinetic energy and adapt to the direction of fluid flow. The blade frame is used to limit the deflection position of the cladding layer deformation.

[0012] When the flow direction of the external fluid changes, the coating layer deforms to a preset position under the limiting action of the blade skeleton, and the drive mechanism drives the motor shaft to rotate in one direction to generate electricity.

[0013] The coating layer is used to receive external fluid kinetic energy and deform according to the fluid flow direction. The blade skeleton is used to maintain the shape of the coating layer and limit the degree of deformation of the coating layer, so that the flexible blade can deform controllably according to the change of fluid flow direction. This ensures that the drive mechanism can drive the motor shaft to rotate in one direction to generate electricity when receiving fluid energy from different directions, thereby improving the energy utilization rate of the drive mechanism and improving the power generation efficiency.

[0014] In some embodiments of this application, multiple blade skeletons are provided, and the multiple blade skeletons are parallel to each other and in the same plane.

[0015] In some embodiments of this application, each blade frame includes multiple connecting units, which are rotatably connected to each other in sequence.

[0016] In some embodiments of this application, each connecting unit includes a connecting portion and a limiting portion. Two adjacent connecting units are hinged to each other through the connecting portion, and two adjacent connecting units can rotate relative to each other about the hinge axis. Each of the two adjacent connecting units is provided with a limiting portion on one side.

[0017] The limiting part includes a first direction limiting part and a second direction limiting part, which are symmetrically arranged on both sides of the connecting unit to limit the maximum rotation angle of two adjacent connecting units in the rotation direction.

[0018] In some embodiments of this application, the connecting part is a link, a connecting rod is fixedly connected to one side of the link, and limiting parts are respectively provided at both ends of the connecting rod. Multiple links are connected end to end to form an overall structure of the blade skeleton, and the connecting rods connected to one side of the link are also arranged in sequence.

[0019] The first direction limiting parts of two adjacent links are in corresponding positions, and the second direction limiting parts are also in corresponding positions. This embodiment is one implementation of the blade skeleton. The overall structure of the blade skeleton is formed by connecting the links. The blade skeleton can also rotate freely through the hinge between the links. At the same time, the link limits the bending angle between the links and restricts the bending shape of the blade skeleton.

[0020] In some embodiments of this application, based on the above structure, the actual shape of the power generation drive mechanism of the present invention, the actual connection structure of each functional component, and the role of each component in the deformation of the flexible blade during actual power generation when subjected to fluid driving directions in both positive and negative directions include:

[0021] The direction of fluid flow toward the generator is defined as the first direction, and the direction of fluid flow away from the generator is defined as the second direction.

[0022] When the fluid flow direction is the first direction, the coating layer causes the blade frame to deflect in the first direction, and the two adjacent connecting units rotate relative to each other around their hinge axis in the first direction.

[0023] The first direction limiting parts on two adjacent connecting units come into contact with each other to reach the maximum rotation angle limit. The overall shape of the blade skeleton is an arc that bends in the first direction at one end. The deformation of the coating layer is limited by the blade skeleton to the first deflection position.

[0024] When the fluid flow direction is the second direction, the coating layer causes the blade skeleton to deflect in the second direction, and the two adjacent connecting units rotate relative to each other around their hinge axis in the second direction.

[0025] The second direction limiting parts on two adjacent connecting units contact each other to reach the maximum rotation angle limit. The overall shape of the blade skeleton is an arc that bends in the second direction at one end. The deformation of the coating layer is limited by the blade skeleton to the second deflection position.

[0026] Based on the above basic design structure and basic concept, in some embodiments of this application, multiple drive mechanisms are provided, and the multiple drive mechanisms are connected in series in sequence along the axial direction of their rotation axis. Adjacent drive mechanisms are fixed by a rotating fixing rod. The two ends of the rotating fixing rod are respectively connected to the mounting parts of the two drive mechanisms, and the rotating fixing rod coincides with the rotation axis of the drive mechanism.

[0027] Connecting multiple drive mechanisms in series can significantly improve power generation efficiency. Since the drive mechanism mainly relies on the interaction force between the flexible blades and the fluid to generate electricity, the larger its area, the greater the force. However, simply increasing the area of ​​a single blade will also increase its mass, which will affect the movement of the blade. Using multiple drive mechanisms in series can solve this problem well. It increases the overall driving force area of ​​the drive mechanism without increasing the mass of a single blade. The more drive mechanisms connected in series, the higher the power generation efficiency.

[0028] In some embodiments of this application, a housing is provided outside the drive mechanism. The housing is a cylindrical structure with openings at both ends. The rotation axis of the drive mechanism coincides with the axis of the housing, and the drive mechanism can rotate inside the housing.

[0029] The area of ​​the openings at both ends of the casing is greater than the inner diameter area of ​​the casing's internal cross-section.

[0030] The casing serves to protect the internal drive mechanism from damage caused by external impacts to the soft, flexible blades. The casing's "large at both ends and small in the middle" shape design allows for better flow guidance, making the fluid flow more concentrated, the flow driving force greater, and the power generation effect better.

[0031] In some embodiments of this application, flow stabilizers are installed in a circumferential array on the outer surface of the casing. The function of the flow stabilizers is to keep the casing stable in a flowing fluid environment. On the one hand, this can improve the stability of power generation. On the other hand, the flow stabilizers can make the opening of the casing face the direction of fluid flow, so as to make the use of the fluid force to the maximum extent.

[0032] In some embodiments of this application, the openings at both ends of the casing are covered with filters. The purpose of the filters is to prevent birds in the air or fish and shrimp in the water from easily entering the casing, regardless of whether wind power or hydropower is used. The high-speed rotating flexible blades inside the casing can easily harm organisms. In addition, aquatic plants can easily enter the casing and entangle the flexible blades, causing the mechanism to stop operating. Therefore, installing filters at both the inlet and outlet of the casing can effectively solve the above problems.

[0033] In some embodiments of this application, a power generation device is also included, which includes a generator motor and a drive mechanism.

[0034] The drive mechanism is fixedly installed on the motor shaft of the generator motor. The drive mechanism is used to receive the kinetic energy of the external fluid flow to drive the generator motor to rotate and generate electricity.

[0035] The beneficial effects of this invention are as follows:

[0036] This invention provides a drive mechanism and a power generation device for generating electricity. The drive mechanism is fixedly installed on the motor shaft of a generator motor and is used to receive the kinetic energy of external fluid flow to drive the generator motor to rotate and generate electricity. The drive mechanism includes a mounting part and multiple flexible blades fixed on the mounting part. Each flexible blade includes a blade skeleton composed of multiple connecting sections. The outer surface of the blade skeleton is covered with a coating layer made of flexible material. The coating layer is used to receive external fluid kinetic energy and deforms according to the fluid flow direction. The blade skeleton is used to maintain the shape of the coating layer and limit the degree of deformation of the coating layer, so that the flexible blades can deform controllably according to the change of fluid flow direction. This ensures that the drive mechanism can drive the motor shaft to rotate in one direction to generate electricity even when receiving fluid energy from different directions, thereby improving the energy utilization rate of the drive mechanism and increasing the power generation efficiency. Attached Figure Description

[0037] Figure 1 This is one of the structural diagrams of the drive mechanism in some embodiments of the present invention;

[0038] Figure 2 This is one of the structural diagrams of the drive mechanism in some embodiments of the present invention;

[0039] Figure 3 These are partial cross-sectional views of the drive mechanism in some embodiments of the present invention;

[0040] Figure 4 These are blade skeleton structure diagrams in some embodiments of the present invention;

[0041] Figure 5 These are structural diagrams of the limiting part in some embodiments of the present invention;

[0042] Figure 6 In some embodiments of the present invention, when the fluid flow direction is a first direction, the adaptive deformation, force direction, and rotation direction of the drive mechanism are described.

[0043] Figure 7 In some embodiments of the present invention, when the fluid flow direction is a second direction, the adaptive deformation, force direction, and rotation direction of the drive mechanism are as follows:

[0044] Figure 8 This is the blade skeleton design in Embodiment 2 of the present invention;

[0045] Figure 9 This is the blade skeleton design in Embodiment 1 of the present invention;

[0046] Figure 10 This describes the connection relationship between the blade skeleton, the fixed shaft, and the mounting part of the present invention (taking Embodiment 2 as an example).

[0047] Figure 11 This is a diagram showing the series connection of multiple drive mechanisms in some embodiments of the present invention;

[0048] Figure 12 This is a perspective view of a series connection structure of multiple drive mechanisms in some embodiments of the present invention (with an external housing).

[0049] Figure 13 This is a diagram (half-sectional view of the housing) showing the series connection structure of multiple drive mechanisms in some embodiments of the present invention.

[0050] Figure label:

[0051] Includes: 100, drive mechanism; 110, mounting part; 120, fixed shaft; 200, flexible blade; 210, blade frame; 220, coating layer; 300, connecting unit; 310, connecting part; 320, limiting part; 321, first direction limiting part; 322, second direction limiting part; 311, chain link; 312, connecting rod; 400, housing; 410, flow stabilizer; 420, filter screen; 500, rotating fixing rod; 600, generator motor; 610, motor shaft. Detailed Implementation

[0052] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0053] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "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 application 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 application.

[0054] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0055] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0056] This invention provides a drive mechanism and a power generation device for generating electricity, which solves the problem of how to achieve unidirectional rotation of the generator motor 600 to generate electricity under the condition of multi-directional fluid flow energy input, using the simplest impeller or blade design.

[0057] In some embodiments of this application, such as Figure 1-5 The power generation drive mechanism 100 shown includes a mounting part 110, a plurality of fixed shafts 120 circumferentially and uniformly fixed on the mounting part 110, and flexible blades 200 fixedly connected to the fixed shafts 120.

[0058] Each flexible blade 200 includes a blade frame 210 and a covering layer 220 covering the outer surface of the blade frame 210. One end of both the blade frame 210 and the covering layer 220 is fixedly connected to the fixed shaft 120.

[0059] The cladding layer 220 is made of a flexible material and is used to receive external fluid kinetic energy and adapt to the direction of fluid flow. The blade frame 210 is used to limit the deflection position of the deformation of the cladding layer 220.

[0060] When the flow direction of the external fluid changes, the coating layer 220 deforms to a preset position under the limiting action of the blade frame 210, and the drive mechanism 100 drives the motor shaft 610 to rotate in one direction to generate electricity.

[0061] It should be noted that a key feature of this invention is the use of flexible materials to fabricate flexible blades 200, which can change their shape as the direction of fluid flow changes.

[0062] The flexible blade 200 is planar under normal conditions. However, in a fluid flow environment, it undergoes adaptive torsional deformation along the fluid flow direction, absorbing the kinetic energy of the fluid flow. Utilizing the adaptive torsional deformation mode of the flexible blade 200, since the deformation shape of the flexible impeller can change with the fluid direction, the fluid pressure on the flexible impeller is always in the same direction, regardless of the fluid flow direction relative to the flexible impeller. That is, the component force pressure generated by the fluid flow pressure on the deformation direction of the flexible impeller is in the same direction. Therefore, the rotation direction of the flexible impeller remains unchanged. This is the most basic principle of the present invention.

[0063] Based on the above basic principles, the coating layer 220 is used to receive external fluid kinetic energy and deform according to the fluid flow direction. The blade frame 210 is used to maintain the shape of the coating layer 220 and limit the degree of deformation of the coating layer 220, so that the flexible blade 200 can deform controllably according to the change of fluid flow direction. This ensures that the drive mechanism 100 can drive the motor shaft 610 to rotate in one direction to generate electricity when receiving fluid energy from different directions, thereby improving the energy utilization rate of the drive mechanism 100 and improving the power generation efficiency.

[0064] It should also be noted that the structures of the various functional components mentioned above only refer to the significant deformation of the flexible blade 200 under the action of fluid, and only to the deformation related to the basic principle of the invention. Other minor deformations of the flexible blade 200 that occur in actual use are irrelevant to this design and do not affect this design.

[0065] In some embodiments of this application, such as Figure 4 , Figure 5 and Figure 10 As shown, multiple blade frames 210 are provided, and the multiple blade frames 210 are parallel to each other and in the same plane.

[0066] It should be noted that multiple blade frames 210 are more conducive to maintaining the shape of the flexible blade 200. The role of the blade frame 210 in the overall deformation process includes two aspects: first, it can deform along with the coating layer 220; second, it makes the deformation of the coating layer 220 controllable. In other words, after the flexible blade 200 receives fluid forces from different directions, the specific shape of its corresponding deformation is controlled and maintained by the blade frame 210.

[0067] The more blade skeletons 210 there are in the cladding layer 220, the better it is for the flexible blade 200 to maintain its shape after deformation. However, too many blade skeletons 210 will affect the deformation effect of the cladding layer 220. Therefore, the optimal number of blade skeletons 210 can be determined by actual conditions and experimental results for different power generation effects and power generation environments.

[0068] Regarding the deformable design of the blade frame 210 and its ability to maintain a preset shape, the basic design structure of the blade frame 210 is as follows:

[0069] Each blade frame 210 includes multiple connecting units 300, which are rotatably connected to each other in sequence.

[0070] Each connecting unit 300 includes a connecting part 310 and a limiting part 320. Two adjacent connecting units 300 are hinged to each other through the connecting part 310, and two adjacent connecting units 300 can rotate relative to each other about the hinge axis. Each of the two adjacent connecting units 300 is provided with a limiting part 320 on one side.

[0071] The fluid flow direction relative to the drive mechanism 100 can be captured and utilized for power generation in both the forward and reverse directions along the rotation axis of the drive mechanism 100. Therefore, the flexible blade 200 only needs to ensure that the drive mechanism 100 can rotate unidirectionally through deformation under the action of both the forward and reverse directions along the rotation axis of the drive mechanism 100. Based on this, the limiting part 320 was further designed:

[0072] The limiting part 320 includes a first direction limiting part 321 and a second direction limiting part 322. The first direction limiting part 321 and the second direction limiting part 322 are symmetrically arranged on both sides of the connecting unit 300, and are used to limit the maximum rotation angle of two adjacent connecting units 300 in the rotation direction.

[0073] Based on the basic design structure of the blade skeleton 210 described above, specifically, in one embodiment of this application:

[0074] Example 1 (e.g.) Figure 9 (As shown)

[0075] Both the connecting part 310 and the limiting part 320 are provided at both ends of each connecting unit 300. The connecting part 310 is a connecting platform formed by extending a portion of the surface of the connecting unit 300.

[0076] The connection platforms are symmetrically arranged on both sides of each connection unit 300.

[0077] The connecting platform has an opening, and a rivet is fixed in the opening.

[0078] The first direction limiting part 321 of two adjacent connecting units 300 are in the same position, and the second direction limiting part 322 is also in the same position.

[0079] Example 2 (e.g.) Figure 8 and Figure 10 (As shown)

[0080] The connecting part 310 is a link 311. A connecting rod 312 is fixedly connected to one side of the link 311, and the limiting part 320 is respectively provided at both ends of the connecting rod 312. Multiple links 311 are connected end to end to form the overall structure of the blade skeleton 210, and the connecting rods 312 connected to one side of the link 311 are also arranged in sequence.

[0081] The first direction limiting part 321 of two adjacent links 312 are in the same position, and the second direction limiting part 322 is also in the same position.

[0082] The above two embodiments are implementations of the blade skeleton 210. The difference between Embodiment 2 and Embodiment 1 is that:

[0083] The blade frame 210 is formed by connecting the links 311. The blade frame 210 can also rotate freely through the hinge between the links 311. At the same time, the connecting rod 312 limits the bending angle between the links 311 and restricts the bending shape of the blade frame 210.

[0084] Compared to the partial design in Embodiment 1, the two-part design of link 311 and connecting rod 312 in Embodiment 2 has higher overall strength and can withstand the impact of high-velocity fluids. The blade skeleton 210 is not easily broken, and the connection strength of the connecting part 310 is high.

[0085] However, the structural quality of Embodiment 2 is slightly higher than that of Embodiment 1. In practical applications, the actual structural design can be selected according to the needs.

[0086] In some embodiments of this application, based on the above structure, the actual shape of the flexible blade 200, the actual connection structure of each functional component, and the role of each component in the deformation process of the flexible blade 200 during actual power generation, when subjected to fluid driving directions in both positive and negative directions, include:

[0087] like Figure 6-7 As shown, the direction of fluid flow toward the generator 600 is defined as the first direction, and the direction of fluid flow away from the generator 600 is defined as the second direction.

[0088] Figure 6 When the fluid flow direction is the first direction, the coating layer 220 causes the blade frame 210 to deflect in the first direction, and the two adjacent connecting units 300 rotate relative to each other around their hinge axis in the first direction.

[0089] The first direction limiting parts 321 on the two adjacent connecting units 300 come into contact with each other and reach the maximum rotation angle limit. The overall shape of the blade frame 210 is an arc that bends in the first direction at one end. The deformation of the covering layer 220 is limited by the blade frame 210 to the first deflection position.

[0090] Figure 7 When the fluid flow direction is the second direction, the coating layer 220 causes the blade frame 210 to deflect in the second direction, and the two adjacent connecting units 300 rotate relative to each other around their hinge axis in the second direction.

[0091] The second direction limiting parts 322 on the two adjacent connecting units 300 come into contact with each other and reach the maximum rotation angle limit. The overall shape of the blade frame 210 is an arc that bends in the second direction at one end. The deformation of the covering layer 220 is limited by the blade frame 210 to the second deflection position.

[0092] It should be noted that, Figure 6 and Figure 7 Solid arrows indicate the direction of fluid flow, hollow arrows indicate the downward pressure exerted by the fluid flow on the surface of the flexible blade 200, and linear arrows indicate the rotation direction of the drive mechanism 100. The downward pressure is actually a component of the force generated in the direction of fluid flow, and it is also the driving force for the rotation of the drive mechanism 100. Figure 6 and Figure 7 Although the fluid flow directions are different, the pressure acting on the flexible blade 200 is in the same direction, thus achieving unidirectional rotation of the drive mechanism 100 (clockwise rotation in the figure).

[0093] Based on the above basic design structure and basic concept, in some embodiments of this application, such as Figure 11As shown, multiple drive mechanisms 100 are provided, and the multiple drive mechanisms 100 are connected in series along the axial direction of their rotation axis. Two adjacent drive mechanisms 100 are fixed by a rotating fixing rod 500. The two ends of the rotating fixing rod 500 are respectively connected to the mounting parts 110 of the two drive mechanisms 100, and the rotating fixing rod 500 coincides with the rotation axis of the drive mechanism 100.

[0094] It should be noted that connecting multiple drive mechanisms 100 in series can significantly improve power generation efficiency. Since the drive mechanism 100 mainly relies on the interaction force between the flexible blade 200 and the fluid to generate electricity, the larger its area, the greater the force. However, simply increasing the area of ​​a single blade will also increase its mass, which will affect the movement of the blade. The connection of multiple drive mechanisms 100 in series can solve this problem well. It increases the overall driving force area of ​​the drive mechanism 100 without increasing the mass of a single blade. The more drive mechanisms 100 connected in series, the higher the power generation efficiency.

[0095] In some embodiments of this application, such as Figure 12-13 As shown, a housing 400 is provided outside the drive mechanism 100. The housing 400 is a circular cylindrical structure with openings at both ends. The rotation axis of the drive mechanism 100 coincides with the axis of the housing 400, and the drive mechanism 100 can rotate inside the housing 400.

[0096] The area of ​​the openings at both ends of the housing 400 is greater than the inner diameter area of ​​the internal cross-section of the housing 400.

[0097] It should be noted that the function of the housing 400 is to protect the internal drive mechanism 100 and prevent the soft flexible blades 200 from being damaged by external collisions. The "large at both ends and small in the middle" shape design of the housing 400 can better guide the flow, making the fluid flow more concentrated, the flow driving force greater, and the power generation effect better.

[0098] In some embodiments of this application, such as Figure 12-13 As shown, flow stabilizers 410 are mounted in a circumferential array on the outer surface of the housing 400.

[0099] It should be noted that the function of the 410 flow stabilizer is as follows:

[0100] The casing 400 is kept stable in a flowing fluid environment, which improves the stability of power generation. In addition, the flow stabilizer 410 can make the opening of the casing face the direction of fluid flow, so as to make the use of the fluid force to the maximum extent.

[0101] In some embodiments of this application, such as Figure 13As shown, the openings at both ends of the housing 400 are covered with filters 420.

[0102] It should be noted that the function of filter 420 is as follows:

[0103] Whether using wind power or hydropower, birds in the air or fish and shrimp in the water can easily enter the casing 400. The high-speed rotating flexible blades 200 inside the casing 400 can easily harm organisms. In addition, aquatic plants can easily enter the casing 400 and entangle the flexible blades 200, causing the mechanism to stop operating. Therefore, installing filters 420 at both the inlet and outlet of the casing 400 can effectively solve the above problems.

[0104] In some embodiments of this application, a power generation device is also included, such as Figures 1-13 As shown, it includes a generator motor 600 and a drive mechanism 100.

[0105] The drive mechanism 100 is fixedly installed on the motor shaft 610 of the generator motor 600. The drive mechanism 100 is used to receive the kinetic energy of the external fluid flow to drive the generator motor 600 to rotate and generate electricity.

[0106] This invention provides a drive mechanism and a power generation device for generating electricity. The drive mechanism is fixedly installed on the motor shaft of a generator motor and is used to receive the kinetic energy of external fluid flow to drive the generator motor to rotate and generate electricity. The drive mechanism includes a mounting part and multiple flexible blades fixed on the mounting part. The mounting part is used to fix to the motor shaft, and the flexible blades are evenly arranged circumferentially along the mounting part. Each flexible blade includes a blade skeleton composed of multiple connecting sections. The outer surface of the blade skeleton is covered with a coating layer made of flexible material. The coating layer forms the external shape of the flexible blade and is used to receive external fluid kinetic energy and deform according to the fluid flow direction. The blade skeleton is used to maintain the shape of the coating layer and limit the degree of deformation of the coating layer, so that the flexible blade undergoes controllable deformation according to the change of fluid flow direction. This ensures that the drive mechanism can drive the motor shaft to rotate in one direction to generate electricity even when receiving fluid energy from different directions, thereby improving the energy utilization rate of the drive mechanism and increasing the power generation efficiency.

[0107] It will be understood by those skilled in the art that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drive mechanism for power generation, characterized in that, The drive mechanism includes a mounting part fixed to the motor shaft of the generator motor, a plurality of fixed shafts uniformly fixed to the mounting part in the circumferential direction, and flexible blades fixedly connected to the fixed shafts. Each of the flexible blades includes a blade skeleton and a covering layer covering the outer surface of the blade skeleton; Both the blade skeleton and one end of the coating layer are fixedly connected to the fixed shaft. The covering layer is made of a flexible material, which is used to receive external fluid kinetic energy and adapt to the direction of fluid flow. The blade frame is used to limit the deflection position of the deformation of the cladding layer; When the flow direction of the external fluid changes, the coating layer deforms to a preset position under the limiting action of the blade skeleton, and the drive mechanism drives the motor shaft to rotate in one direction to generate electricity. The blade frame is provided with multiple components; The multiple blade frames are parallel to each other and lie in the same plane; Each of the blade frames includes multiple connection units; The multiple connecting units are rotatably connected to each other in sequence; Each of the aforementioned connection units includes: The connecting part allows two adjacent connecting units to be hinged together, and the two adjacent connecting units can rotate relative to each other about the hinge axis. Limiting portions are provided on one side for each of the two adjacent connecting units; The limiting part includes a first direction limiting part and a second direction limiting part, which are symmetrically arranged on both sides of the connecting unit to limit the maximum rotation angle of two adjacent connecting units in the rotation direction.

2. The power generation drive mechanism as described in claim 1, characterized in that, The connecting part is a chain link; A connecting rod is fixedly connected to one side of the chain link, and the limiting parts are respectively located at both ends of the connecting rod; Multiple links are connected end to end to form the overall structure of the blade skeleton, and the connecting rods connected to one side of the links are also arranged in sequence. The positions of the first direction limiting parts of two adjacent connecting rods correspond to each other, and the positions of the second direction limiting parts also correspond to each other.

3. The power generation drive mechanism as described in claim 1, characterized in that, The direction in which the fluid flows toward the generator is defined as the first direction, and the direction in which the fluid flows away from the generator is defined as the second direction. When the fluid flow direction is the first direction, the coating layer causes the blade skeleton to deflect in the first direction, and the two adjacent connecting units rotate relative to each other around their hinge axis in the first direction. The first direction limiting parts on two adjacent connecting units contact each other to achieve maximum rotation angle limiting. The overall shape of the blade skeleton is an arc that bends in the first direction at one end. The deformation of the covering layer is limited by the blade skeleton to the first deflection position. When the fluid flow direction is the second direction, the coating layer causes the blade skeleton to deflect in the second direction, and the two adjacent connecting units rotate relative to each other around their hinge axis in the second direction; The second direction limiting parts on two adjacent connecting units contact each other to reach the maximum rotation angle limit. The overall shape of the blade skeleton is an arc that bends at one end in the second direction. The deformation of the covering layer is limited by the blade skeleton to the second deflection position.

4. The power generation drive mechanism as described in claim 1, characterized in that, The drive mechanism is provided in multiple ways, and the multiple drive mechanisms are connected in series in sequence along the axial direction of their rotation axis. The two adjacent drive mechanisms are fixed together by a rotating fixing rod, the two ends of which are respectively connected to the mounting parts of the two drive mechanisms, and the rotating fixing rod coincides with the rotation axis of the drive mechanism.

5. The power generation drive mechanism as described in claim 1, characterized in that, The drive mechanism is externally fitted with an organic shell; The casing is a cylindrical structure with openings at both ends; The rotation axis of the drive mechanism coincides with the axis of the housing, and the drive mechanism can rotate within the housing. Wherein, the area of ​​the openings at both ends of the housing is greater than the inner diameter area of ​​the internal cross-section of the housing.

6. The power generation drive mechanism according to claim 5, characterized in that, The outer surface of the casing is equipped with flow stabilizers arranged in a circumferential ring.

7. The power generation drive mechanism according to claim 6, characterized in that, The openings at both ends of the casing are covered with filter screens.

8. A power generation device, characterized in that... The power generation device includes a generator motor and a drive mechanism as described in any one of claims 1-7; The drive mechanism is fixedly installed on the motor shaft of the generator motor. The drive mechanism is used to receive the kinetic energy of external fluid flow to drive the generator motor to rotate and generate electricity.

Images