Multi-group stacked vertical axis wind turbine device

Abstract

The invention discloses a multi-group stacked vertical axis wind turbine device, and relates to the technical field of vertical axis wind turbines. The tower-type vertical-axis wind driven generator comprises a cage type vertical-axis wind driven generator and a tower-type vertical-axis wind driven generator body formed by stacking a plurality of cage type vertical-axis wind driven generator bodies, each cage type vertical-axis wind driven generator body comprises a cage frame, a generator body and a wind wheel, the generator body is installed in the center of the cage frame, and the wind wheel is matched with the generator body and located in the cage frame; the cage frame comprises a pair of fixing discs, a flow guide supporting plate and a base. In order to enhance the power generation efficiency, under the condition that the occupied area is not changed, the power generation efficiency per unit area is improved by superposing a plurality of vertical-axis wind driven generators; the wind wheel and the generator are placed in the cage frame, the stacked supporting part is achieved through the cage frame, and meanwhile damage to birds can be reduced through the cage frame.

Description

Technical Field

[0001] The invention belongs to the technical field of vertical axis wind turbines, and in particular relates to a multi-group superimposed vertical axis wind turbine device. Background Art

[0002] Vertical axis wind turbines (VAWT) are mainly divided into drag type and lift type. Drag type vertical axis wind turbines mainly use the drag generated by air flowing through the blades as the driving force, while lift type uses the lift generated by air flowing through the blades as the driving force. As the blades rotate, the drag decreases sharply with the increase in speed, while the lift increases instead, so the efficiency of lift type vertical axis wind turbines is much higher than that of drag type.

[0003] The working principle of vertical axis wind turbine is to use wind energy to rotate the generator to generate electricity. Its rotor adopts a column structure, which is perpendicular to the ground. It can adapt to any wind direction during rotation and has good adaptability and stability. The blade design of its rotor is relatively special, with a curved, thin, serrated shape, which can reduce noise and vibration and improve the power efficiency of the rotor.

[0004] Disadvantages of vertical axis wind turbines:

[0005] 1. Relatively low efficiency: Due to the design characteristics of vertical axis wind turbines, their power coefficient is usually lower than that of horizontal axis wind turbines, and the conversion efficiency is relatively low.

[0006] 2. Large size: Vertical axis wind turbines are large in size and occupy a large area, making them less suitable for use in cities or limited spaces. Summary of the invention

[0007] The purpose of the present invention is to provide a multi-group superimposed vertical axis wind turbine device, which improves the power generation efficiency per unit area by superimposing multiple vertical axis wind turbines, thereby solving the problem of low power generation efficiency of existing vertical axis wind turbines.

[0008] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0009] The present invention is a multi-group superimposed vertical axis wind turbine device, comprising a cage-type vertical axis wind turbine and a tower-type vertical axis wind turbine formed by superimposing a plurality of cage-type vertical axis wind turbines.

[0010] Furthermore, the cage-type vertical axis wind turbine generator comprises a cage, a generator and a wind wheel, wherein the generator is installed at the center of the cage, and the wind wheel cooperates with the generator and is located in the cage.

[0011] Furthermore, the cage frame includes a pair of fixed plates, guide support plates and a base, a plurality of the guide support plates are evenly distributed and fixed between the pair of fixed plates, the base is fixed on a fixed plate located below, and the generator is fixed on the base.

[0012] Furthermore, the fixed plate includes an inner ring plate and an outer ring plate, a number of connecting rods are evenly distributed between the inner ring plate and the outer ring plate, a first cylindrical support is arranged at the center of one end face of the inner ring plate, and a first flange is arranged at the end face of the first cylindrical support; the outer ring plate has a number of through holes and waist-shaped blind holes evenly distributed along the circumferential direction of the end face.

[0013] Furthermore, the guide support plate comprises a guide plate, and a waist-shaped convex block matched with the waist-shaped blind hole is respectively arranged at both ends of the guide plate, and a stud matched with the through hole is arranged on the waist-shaped convex block.

[0014] Furthermore, the base includes a second cylindrical support, a second flange matching the first flange is arranged at one end of the second cylindrical support, and a third flange is arranged at the other end of the second cylindrical support.

[0015] Furthermore, the generator includes a fixed base and an input shaft, and the fixed base is fixed on the third flange.

[0016] Furthermore, the wind wheel comprises a plurality of blades, a connecting rod and a fixing seat, the blades are fixed to the fixing seat via the connecting rod, and the fixing seat is fixed to the input shaft of the generator.

[0017] Furthermore, the guide plate is a spindle-shaped thin-wall structure.

[0018] The existing vertical axis wind turbine mainly consists of a wind rotor, a generator, a tower and a foundation. The wind rotor captures wind energy and converts it into rotational mechanical energy, the generator converts mechanical energy into electrical energy, and the tower and foundation play a supporting and fixing role. The wind rotor is the core component of the vertical axis wind turbine, responsible for capturing wind energy and converting it into mechanical energy. It consists of multiple blades that are specially designed to rotate efficiently under the action of wind. The rotation speed of the wind rotor increases with the increase of wind speed, thereby driving the generator to operate. The generator is another important component of the vertical axis wind turbine, and its function is to convert the mechanical energy transmitted by the wind rotor into electrical energy. The generator contains two parts, the stator and the rotor. When the wind rotor drives the rotor to rotate, the coil in the stator cuts the magnetic field to generate current, thereby realizing energy conversion. The tower is an important structure that supports the entire wind turbine. It not only has to bear the weight of the wind rotor and the generator, but also has to resist the influence of wind and other external forces on the system.

[0019] In order to enhance the power generation efficiency, multiple vertical axis wind turbines are stacked to improve the power generation efficiency per unit area while keeping the occupied area unchanged.

[0020] The present invention has the following beneficial effects:

[0021] In order to enhance the power generation efficiency, the present invention improves the power generation efficiency per unit area by stacking a plurality of vertical axis wind turbines while keeping the occupied area unchanged.

[0022] The present invention can better converge the airflow onto the blades by adopting the guide support plate with a spindle-shaped thin-wall structure, and promote the rotation of the wind wheel by adjusting the airflow in a stable airflow direction through the guide support plate.

[0023] The present invention places the wind wheel and the generator inside the cage frame, and uses the cage frame to realize the stacking support part. At the same time, the cage frame can reduce the harm to the birds.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0026] Figure 1 This is a schematic structural diagram of a plurality of stacked vertical axis wind turbine generator devices according to the present embodiment;

[0027] Figure 2 It is a structural schematic diagram of a cage-type vertical axis wind turbine;

[0028] Figure 3 It is a structural schematic diagram of a fixed disk;

[0029] Figure 4 for Figure 3 Bottom view of the structure;

[0030] Figure 5 for Figure 4 A magnified view of the local structure at point A in the middle;

[0031] Figure 6 is a schematic diagram of the structure of the wind wheel;

[0032] Figure 7 for Figure 6 A top view of the structure;

[0033] Figure 8is a schematic diagram of the structure of the generator;

[0034] Fig. 9 is a schematic diagram of the structure of the base;

[0035] Fig.10 is a schematic diagram of the structure of the guide support plate;

[0036] Fig.11 for Fig.10 Side view of the structure. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1

[0039] like Figure 1 As shown, this embodiment is a multi-group superimposed vertical axis wind turbine device, including a cage-type vertical axis wind turbine 1 and a tower-type vertical axis wind turbine formed by superimposing multiple cage-type vertical axis wind turbines 1. In order to enhance power generation efficiency, multiple vertical axis wind turbines are superimposed to improve power generation efficiency per unit area without changing the occupied area.

[0040] like Figure 2 As shown, the cage-type vertical axis wind turbine 1 includes a cage, a generator 2 and a wind wheel 103. The generator 2 is installed at the center of the cage. The wind wheel 103 cooperates with the generator 2 and is located in the cage. The cage includes a pair of fixed plates 101, a guide support plate 102 and a base 104. A plurality of guide support plates 102 are evenly distributed and fixed between the pair of fixed plates 101. The base 104 is fixed on a fixed plate 101 located below, and the generator 2 is fixed on the base 104. By placing the wind wheel 103 and the generator 2 inside the cage, the stacked support part is realized by the cage, and the cage can reduce the damage to birds.

[0041] like Figure 3 and Figure 4 As shown, the fixed disk 101 includes an inner ring plate 11 and an outer ring plate 14, a plurality of connecting rods 15 are evenly distributed between the inner ring plate 11 and the outer ring plate 14, a first cylindrical support 12 is arranged at the center of one end face of the inner ring plate 11, and a first flange 13 is arranged at the end face of the first cylindrical support 12; the outer ring plate 14 has a plurality of through holes 16 and waist-shaped blind holes 17 evenly distributed along the circumferential direction of the end face.

[0042] like Fig.10As shown, the guide support plate 102 includes a guide plate 21, and a waist-shaped protrusion 23 cooperating with the waist-shaped blind hole 17 is respectively arranged at both ends of the guide plate 21. The position of the guide support plate 102 is limited by the cooperation between the waist-shaped blind hole 17 and the waist-shaped protrusion 23, so that the guide support plate 102 is arranged along the radial direction; a stud 22 cooperating with the through hole 16 is arranged on the waist-shaped protrusion 23, and the guide support plate 102 is fixed by tightening with a nut.

[0043] like Fig. 9 As shown, the base 104 includes a second cylindrical support 41 , a second flange 42 matching with the first flange 13 is disposed at one end of the second cylindrical support 41 , and a third flange 43 is disposed at the other end of the second cylindrical support 41 .

[0044] like Figure 8 As shown, the generator 2 includes a fixed base 201 and an input shaft 202 , and the fixed base 201 is fixed on the third flange 43 .

[0045] like Figure 6 and 7 As shown, the wind wheel 103 includes a plurality of blades 31 , a connecting rod 32 and a fixing seat 33 . The blades 31 are fixed to the fixing seat 33 via the connecting rod 32 , and the fixing seat 33 is fixed to the input shaft 202 of the generator 2 .

[0046] Example 2

[0047] like Figure 1 As shown, this embodiment is a multi-group superimposed vertical axis wind turbine device, including a cage-type vertical axis wind turbine 1 and a tower-type vertical axis wind turbine formed by superimposing multiple cage-type vertical axis wind turbines 1. In order to enhance power generation efficiency, multiple vertical axis wind turbines are superimposed to improve power generation efficiency per unit area without changing the occupied area.

[0048] like Figure 2 As shown, the cage-type vertical axis wind turbine 1 includes a cage, a generator 2 and a wind wheel 103. The generator 2 is installed at the center of the cage. The wind wheel 103 cooperates with the generator 2 and is located in the cage. The cage includes a pair of fixed plates 101, a guide support plate 102 and a base 104. A plurality of guide support plates 102 are evenly distributed and fixed between the pair of fixed plates 101. The base 104 is fixed on a fixed plate 101 located below, and the generator 2 is fixed on the base 104. By placing the wind wheel 103 and the generator 2 inside the cage, the stacked support part is realized by the cage, and the cage can reduce the damage to birds.

[0049] like Figure 3 and Figure 4As shown, the fixed disk 101 includes an inner ring plate 11 and an outer ring plate 14, a plurality of connecting rods 15 are evenly distributed between the inner ring plate 11 and the outer ring plate 14, a first cylindrical support 12 is arranged at the center of one end face of the inner ring plate 11, and a first flange 13 is arranged at the end face of the first cylindrical support 12; the outer ring plate 14 has a plurality of through holes 16 and waist-shaped blind holes 17 evenly distributed along the circumferential direction of the end face.

[0050] like Fig.10 and 11 As shown, the spindle-shaped thin-walled guide support plate 102 includes a guide plate 21, and a waist-shaped protrusion 23 cooperating with the waist-shaped blind hole 17 is respectively arranged at both ends of the guide plate 21. The position of the guide support plate 102 is limited by the cooperation between the waist-shaped blind hole 17 and the waist-shaped protrusion 23, so that the guide support plate 102 is arranged along the radial direction; a stud 22 cooperating with the through hole 16 is arranged on the waist-shaped protrusion 23, and the guide support plate 102 is fixed by tightening with a nut.

[0051] The spindle-shaped thin-walled guide plate 102 can better guide the airflow to the blades 31 , and the airflow is adjusted through the guide plate 102 to stabilize the airflow direction to drive the wind wheel 103 to rotate.

[0052] like Fig. 9 As shown, the base 104 includes a second cylindrical support 41 , a second flange 42 matching with the first flange 13 is disposed at one end of the second cylindrical support 41 , and a third flange 43 is disposed at the other end of the second cylindrical support 41 .

[0053] like Figure 8 As shown, the generator 2 includes a fixed base 201 and an input shaft 202 , and the fixed base 201 is fixed on the third flange 43 .

[0054] like Figure 6 and 7 As shown, the wind wheel 103 includes a plurality of blades 31 , a connecting rod 32 and a fixing seat 33 . The blades 31 are fixed to the fixing seat 33 via the connecting rod 32 , and the fixing seat 33 is fixed to the input shaft 202 of the generator 2 .

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A plurality of stacked vertical axis wind turbine generator devices, characterized in that: It comprises a cage-type vertical axis wind generator (1) and a tower-type vertical axis wind generator formed by stacking a plurality of cage-type vertical axis wind generators (1).

2. A multiple stacked vertical axis wind turbine generator device as claimed in claim 1, characterized in that: The cage-type vertical axis wind turbine (1) comprises a cage, a generator (2) and a wind wheel (103); the generator (2) is installed at the center of the cage, and the wind wheel (103) cooperates with the generator (2) and is located in the cage.

3. A plurality of stacked vertical axis wind turbine generators as claimed in claim 2, characterized in that: The cage frame comprises a pair of fixed plates (101), a guide support plate (102) and a base (104); a plurality of the guide support plates (102) are evenly distributed and fixed between the pair of fixed plates (101); the base (104) is fixed on a fixed plate (101) located below; and the generator (2) is fixed on the base (104).

4. A plurality of stacked vertical axis wind turbine generators as claimed in claim 3, characterized in that: The fixed plate (101) comprises an inner ring plate (11) and an outer ring plate (14); a plurality of connecting rods (15) are evenly distributed between the inner ring plate (11) and the outer ring plate (14); a first cylindrical support (12) is arranged at the center of one end face of the inner ring plate (11); a first flange (13) is arranged at the end face of the first cylindrical support (12); and a plurality of through holes (16) and waist-shaped blind holes (17) are evenly distributed along the circumferential direction of the end face of the outer ring plate (14).

5. A multiple stacked vertical axis wind turbine generator device as claimed in claim 4, characterized in that: The guide support plate (102) comprises a guide plate (21), and a waist-shaped convex block (23) matching with the waist-shaped blind hole (17) is respectively arranged at both ends of the guide plate (21), and a stud (22) matching with the through hole (16) is arranged on the waist-shaped convex block (23).

6. A plurality of stacked vertical axis wind turbine generators as claimed in claim 3, characterized in that: The base (104) includes a second cylindrical support (41), a second flange (42) matching with the first flange (13) is arranged at one end of the second cylindrical support (41), and a third flange (43) is arranged at the other end of the second cylindrical support (41).

7. A multiple stacked vertical axis wind turbine generator device as claimed in claim 6, characterized in that: The generator (2) comprises a fixed base (201) and an input shaft (202); the fixed base (201) is fixed on a third flange (43).

8. A plurality of stacked vertical axis wind turbine generators as claimed in claim 7, characterized in that: The wind wheel (103) comprises a plurality of blades (31), a connecting rod (32) and a fixing seat (33); the blades (31) are fixed to the fixing seat (33) via the connecting rod (32); and the fixing seat (33) is fixed to the input shaft (202) of the generator (2).

9. A multiple stacked vertical axis wind turbine generator device as claimed in claim 5, characterized in that: The guide plate (21) is a spindle-shaped thin-wall structure.

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