Wind gathering type wind power generation device
By adding a wind-gathering structure to the outside of the wind turbine and adjusting the aerodynamic shape of the blades, the problems of low power generation and high cost of small wind power generation devices have been solved, achieving the effects of high-efficiency power generation and cost reduction, and making it suitable for large-scale applications in stable wind positions.
Patent Information
- Application Number
- CN202410561037.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-11-11
AI Technical Summary
Existing small wind power generation devices have low power generation, complex structure, high installation cost, and low cost-effectiveness. In addition, the traditional yaw mechanism increases the failure rate, making it difficult to achieve large-scale and mass production.
An air-gathering structure is added to the outside of the wind turbine, made of air-gathering cloth material. The airflow direction is changed through the holes, which increases the wind turbine's flow speed and flow rate. The aerodynamic shape of the blades is also adjusted to achieve bidirectional wind reception and unidirectional rotation, eliminating the need for a complex yaw mechanism.
It significantly increases power generation and reduces power generation costs without increasing unit costs. It is suitable for installation in locations with stable wind direction and is easy to scale up.
Smart Images
Figure CN120926012A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the fields of energy and wind power generation technology, and in particular to a wind-concentrating wind power generation device. Background Technology
[0002] The vast majority of existing small wind turbines still adopt traditional structural forms. Small horizontal axis wind turbines have limited swept area, and the application of passive yaw wind-adjusting devices increases the failure rate of the units. At the same time, the purely mechanical passive yaw mechanism also greatly reduces the power generation of small units. On the other hand, if an active yaw mechanism is used, it will greatly increase the overall cost of the unit. Existing vertical axis wind turbines are difficult to scale up and mass-produce due to their complex unit structure. They also have problems with complex installation and high costs. At the same time, their overall unit cost remains high, resulting in low cost-effectiveness and making it difficult to form a competitive advantage.
[0003] The existing two types of small wind power generation devices have various wind collection methods. However, the wind collection methods of small horizontal axis wind turbines are mostly based on adding a small wind collection structure around the wind turbine, which can follow the rotation of the wind turbine to catch the wind. The increase in the swept area is limited and the effect is not good. Summary of the Invention
[0004] The purpose of this invention is to provide a wind-concentrating wind power generation device that solves the problems of low power generation, complex structure, high installation cost, and low cost-effectiveness of traditional small wind power generation devices.
[0005] To achieve the above objectives, the present invention provides the following solution:
[0006] The present invention provides a wind-gathering wind power generation device, including a wind-gathering structure, a generator and blades. The wind-gathering structure is provided with holes, the blades are located at the holes, and the blades are connected to the main shaft of the generator.
[0007] Preferably, the wind-gathering structure is a wind-gathering cloth, and the holes are located at the center of the wind-gathering structure.
[0008] Preferably, the edge of the blade is located inside the hole.
[0009] Preferably, the center of the hole coincides with the rotation center of the blade.
[0010] Preferably, there are several blades, and the several blades are evenly arranged around the rotation center of the blade.
[0011] Preferably, the cross-sectional shape of the blade is a symmetrical airfoil.
[0012] Preferably, the wind-gathering structure is made of PVC, polyester, or fiber material.
[0013] Preferably, the two sides of the wind-gathering structure are respectively connected to the support rod of the bracket by snap-fit, the outer shell of the generator is connected to the transition plate, the transition plate is connected to the mounting frame, the mounting frame is connected to the wind-gathering structure, the blades are mounted on the hub, and the hub is connected to the main shaft of the generator.
[0014] The present invention achieves the following technical effects compared to the prior art:
[0015] This invention adds a wind-gathering structure to the outside of the wind turbine. When airflow passes through this structure, its direction is naturally altered, with some passing through the openings, increasing the air velocity and flow rate at the turbine and thus boosting its output power. This significantly increases the power generation of a single turbine without excessively increasing unit costs. Furthermore, by adjusting the aerodynamic shape of the turbine blades, this invention allows the turbine to receive wind in both forward and reverse directions and rotate in the same direction, eliminating the need for a complex and easily damaged yaw mechanism and effectively reducing power generation costs. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the wind-gathering wind power generation device of the present invention. Figure 1 ;
[0018] Figure 2 This is a schematic diagram showing the connection relationship between the generator and the blades of the present invention;
[0019] Figure 3 This is a schematic diagram of the wind-gathering wind power generation device of the present invention. Figure 2 ;
[0020] Figure 4 This is a front view of the wind-gathering wind power generation device of the present invention;
[0021] Figure 5 This is a schematic diagram of the blade cross-section of the present invention;
[0022] Among them: 100-Wind-gathering wind power generation device, 1-Wind-gathering structure, 2-Generator, 3-Blade, 4-Hole, 5-Hub, 6-Bracket, 7-Support rod, 8-Snap-on, 9-Transition plate, 10-Mounting frame. Detailed Implementation
[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0024] The purpose of this invention is to provide a wind-concentrating wind power generation device that solves the problems of low power generation, complex structure, high installation cost, and low cost-effectiveness of traditional small wind power generation devices.
[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] like Figures 1 to 5 As shown: This embodiment provides a wind-gathering wind power generation device 100, including a wind-gathering structure 1, a generator 2 and blades 3. The wind-gathering structure 1 is provided with holes 4, and the blades 3 are located at the holes 4. The blades 3 are connected to the main shaft of the generator 2.
[0027] Specifically, in this embodiment, the wind-gathering structure 1 is a wind-gathering cloth made of PVC, polyester or fiber material, and the hole 4 is located at the center of the wind-gathering structure 1.
[0028] In this embodiment, the center of the hole 4 coincides with the rotation center of the blade 3, and the edge of the blade 3 is located inside the hole 4.
[0029] In this embodiment, the cross-sectional shape of the blade 3 is a symmetrical airfoil, which can achieve bidirectional wind input and rotation in the same direction. There are several blades 3, and the several blades 3 are evenly arranged around the rotation center of the blade 3.
[0030] In this embodiment, the wind-gathering structure 1 has eyelets on both sides. The wind-gathering structure 1 is connected to the support rod 7 of the bracket 6 via buckles 8. The outer shell of the generator 2 is connected to the transition plate 9. The transition plate 9 is connected to the mounting frame 10. The mounting frame 10 is connected to the wind-gathering structure 1. The blades 3 are mounted on the hub 5. The hub 5 is connected to the main shaft of the generator 2. When the blades 3 rotate, the hub 5 rotates, which in turn drives the main shaft of the generator 2 to rotate, thereby generating electricity.
[0031] In this embodiment, a wind-gathering structure 1 is added to the outside of the wind turbine. When the airflow passes through the wind-gathering structure 1, it naturally changes its direction, with some passing through the holes 4, increasing the flow velocity and volume at the wind turbine, thereby improving the output power of the wind turbine. This embodiment increases the swept area of the wind turbine by approximately 390% beyond the swept area of the wind turbine rotor through the wind-gathering structure 1. Because air is a compressible fluid, this wind-gathering method increases the final wind speed and volume passing through the wind turbine rotor, significantly increasing the power generation of a single unit without increasing the unit cost too much. At the same time, this embodiment adjusts the aerodynamic shape of the wind turbine blades 3, allowing the wind turbine to receive wind in both forward and reverse directions and achieve unidirectional rotation, eliminating the need for a complex and easily damaged yaw mechanism, effectively reducing power generation costs.
[0032] The wind-gathering wind power generation device 100 of this embodiment is suitable for installation and use in locations with relatively stable wind direction throughout the year, such as canyons, rivers, wind gaps, and fields. It can be flexibly combined to form cluster power generation according to the qualitative characteristics of the installation location, making it easier to achieve economies of scale.
[0033] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.
Claims
1. A wind-concentrating wind power generation device, characterized in that: It includes a wind-gathering structure, a generator, and blades. The wind-gathering structure has holes, the blades are located in the holes, and the blades are connected to the main shaft of the generator.
2. The wind-concentrating wind power generation device according to claim 1, characterized in that: The wind-gathering structure is a wind-gathering cloth, and the hole is located at the center of the wind-gathering structure.
3. The wind-concentrating wind power generation device according to claim 1, characterized in that: The edge of the blade is located inside the hole.
4. The wind-concentrating wind power generation device according to claim 1, characterized in that: The center of the hole coincides with the rotation center of the blade.
5. The wind-concentrating wind power generation device according to claim 1, characterized in that: The blades are a plurality of each other, and the plurality of blades are evenly arranged around the rotation center of the blade.
6. The wind-concentrating wind power generation device according to claim 1, characterized in that: The blade has a symmetrical airfoil cross-sectional shape.
7. The wind-concentrating wind power generation device according to claim 1, characterized in that: The wind-gathering structure is made of PVC, polyester, or fiber materials.
8. The wind-concentrating wind power generation device according to claim 1, characterized in that: The two sides of the wind-gathering structure are respectively connected to the support rod of the bracket by snap-fit. The outer shell of the generator is connected to the transition plate, the transition plate is connected to the mounting frame, the mounting frame is connected to the wind-gathering structure, the blades are set on the hub, and the hub is connected to the main shaft of the generator.