Wind gathering type wind power generation device
By adding wind-concentrating structure and pneumatic shape adjustment outside the wind wheel of the small wind power generation device, the problems of low power generation, complex structure, high installation cost and low cost performance in traditional small wind power generation devices are solved, and more efficient wind power generation and The effect of reducing costs.
Patent Information
- Application Number
- CN202420979141.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-08
AI Technical Summary
Traditional small wind power generation devices have low power generation, complex structure, high installation cost and low cost performance.
Design a wind-concentrating wind power generation device. By adding a wind-concentrating structure outside the wind wheel, the hole position increases the flow speed and flow rate at the wind wheel, thereby increasing the output power of the wind wheel, and adjusting the pneumatic appearance to make the wind wheel in Both forward and reverse directions can be subjected to wind and rotate in the same direction, eliminating complex and vulnerable yaw mechanisms.
Without increasing the cost of too many units, the power generation capacity of a single unit is greatly improved, the power generation cost is reduced, and the cost-effectiveness of wind power generation devices is effectively improved.
Smart Images
Figure CN222436505U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of energy and wind power generation, in particular to a wind-gathering type wind power generation device. Background Art
[0002] Most of the existing small wind turbines still use the traditional structural form. The swept area of small horizontal axis wind turbines is limited, and the use of their passive yaw wind device increases the failure rate of the unit. At the same time, the purely mechanical passive yaw mechanism also greatly reduces the power generation of small units. If an active yaw mechanism is used, the overall cost of the unit will be greatly increased. The existing vertical axis wind turbine units are difficult to achieve large-scale and mass production due to their complex unit structure, and there are also problems of complex installation and high cost during the installation process. At the same time, the overall cost of the unit is still high, the cost performance is low, and it is difficult to form a competitive advantage.
[0003] The two existing small wind power generation devices have various wind gathering forms, but the wind gathering form of small horizontal axis wind turbines adopts a wind gathering structure that can follow the rotation of the wind wheel, and most of them increase the wind gathering structure in a small area around the wind wheel, so the increase in the swept wind area is limited and the effect is not good. Utility Model Content
[0004] The utility model aims to provide a wind-collecting wind power generation device to solve the problems of low power generation, complex structure, high installation cost and low cost performance of traditional small wind power generation devices.
[0005] To achieve the above purpose, the utility model provides the following solutions:
[0006] The utility model provides a wind-gathering wind power generation device, comprising 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 hole is 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 a plurality of blades, and the plurality of blades are evenly arranged around the rotation center of the blades.
[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 rods of the bracket by snap-fits, the outer casing 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 arranged on the hub, and the hub is connected to the main shaft of the generator.
[0014] Compared with the prior art, the utility model has achieved the following technical effects:
[0015] The utility model adds a wind gathering structure to the outside of the wind wheel. When the air flows through the wind gathering structure, it will naturally change its direction. A part of it will pass through the hole position, increasing the flow speed and flow rate at the wind wheel, thereby improving the output power of the wind wheel. Without increasing the cost of the unit too much, the power generation of a single unit can be greatly improved. At the same time, the utility model adjusts the aerodynamic shape of the wind wheel blades so that the wind wheel can receive wind in both the forward and reverse directions and achieve the same direction of rotation, eliminating the complex and vulnerable yaw mechanism and effectively reducing the cost of power generation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 Schematic diagram of the wind-gathering wind power generation device of the utility model Figure 1 ;
[0018] Figure 2 This is a schematic diagram of the connection relationship between the generator and the blades of the utility model;
[0019] Figure 3 Schematic diagram of the wind-gathering wind power generation device of the utility model Figure 2 ;
[0020] Figure 4 This is a front view of the wind-collecting wind power generation device of the utility model;
[0021] Figure 5 It is a schematic cross-sectional view of a blade of the utility model;
[0022] Wherein: 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-clip, 9-transition plate, 10-mounting frame. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] The utility model aims to provide a wind-collecting wind power generation device to solve the problems of low power generation, complex structure, high installation cost and low cost performance of traditional small wind power generation devices.
[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0026] like Figures 1 to 5 As shown: This embodiment provides a wind-collecting wind power generation device 100, including a wind-collecting structure 1, a generator 2 and blades 3. The wind-collecting structure 1 is provided with holes 4, the blades 3 are located at the holes 4, and 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 realize the same-direction rotation after being exposed to wind in both directions. There are a plurality of blades 3 , and the plurality of blades 3 are evenly arranged around the rotation center of the blade 3 .
[0030] In this embodiment, button holes are provided on both sides of the wind gathering structure 1, and the wind gathering structure 1 is respectively connected to the support rods 7 of the bracket 6 through buckles 8, the shell of the generator 2 is connected to the transition plate 9, the transition plate 9 is connected to the mounting frame 10, and the mounting frame 10 is connected to the wind gathering structure 1, and the blades 3 are arranged on the hub 5, and the hub 5 is connected to the main shaft of the generator 2. The rotation of the blades 3 drives the hub 5 to rotate, and then drives the main shaft of the generator 2 to rotate to achieve power generation.
[0031] In this embodiment, a wind gathering structure 1 is added to the outside of the wind wheel. When the air flow is blocked by the wind gathering structure 1, the flow direction will naturally change, and a part of it will pass through the hole 4, increasing the flow speed and flow rate at the wind wheel, thereby improving the output power of the wind wheel. In this embodiment, the wind gathering structure 1 increases the wind sweeping area of the wind turbine wind wheel by about 390% outside the wind sweeping area. Because air is a compressed fluid, this wind gathering method can increase the wind speed and wind volume that finally passes through the wind wheel, which can greatly increase the power generation of a single unit without increasing the cost of the unit too much. At the same time, in this embodiment, the aerodynamic shape of the blades 3 of the wind wheel is adjusted so that the wind wheel can receive wind in both the forward and reverse directions and rotate in the same direction, eliminating the complex and vulnerable yaw mechanism and effectively reducing the cost of power generation.
[0032] The wind-concentrating wind power generation device 100 of this embodiment is suitable for installation and use in locations where wind directions are relatively stable all year round, such as canyons, rivers, wind vents, 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 utility model. The above examples are only used to help understand the method and core idea of the utility model. At the same time, for those skilled in the art, according to the idea of the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.
Claims
1. A wind-concentrating wind power generation device, characterized in that: The invention comprises 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.
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: There are a plurality of blades, and the plurality of blades are evenly arranged around the rotation center of the blades.
6. The wind-concentrating wind power generation device according to claim 1, characterized in that: The cross-sectional shape of the blade is a symmetrical airfoil.
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 rods of the bracket through buckles, the 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 arranged on the hub, and the hub is connected to the main shaft of the generator.