Vertical axis wind power generation structure capable of flexibly gathering wind

Abstract

The invention discloses a vertical axis wind power generation structure capable of flexibly gathering wind, comprising: a support mechanism comprising a fixed frame, a rotating frame rotatably mounted on the fixed frame, and a yaw device for driving the rotating frame to rotate on the fixed frame; the air gathering mechanism is mounted on the rotating frame and comprises an air inlet and an air outlet, and the area of the air inlet is larger than that of the air outlet; and the vertical shaft fan is mounted on the fixing frame. Natural wind enters through the large-area air inlet of the wind gathering mechanism and then is output through the small-area air outlet, so that the wind speed of the vertical axis fan is increased, and the power generation efficiency is improved; and the rotating frame and the wind gathering mechanism can be driven to rotate on the fixed frame through the yaw device, so that an air inlet of the wind gathering mechanism always faces the wind coming direction, the power generation efficiency of the vertical axis fan is higher, and the wind energy utilization rate is higher.

Description

Technical Field

[0001] The invention relates to the technical field of wind power generation, and in particular to a vertical axis wind power generation structure capable of flexibly gathering wind. Background Art

[0002] Wind turbine power generation technology is already quite mature, and is mainly divided into two categories: horizontal axis wind power generation structure and vertical axis wind power generation structure. Among them, the horizontal axis wind power generation structure has disadvantages such as high cost and difficult installation and maintenance. The vertical axis wind power generation structure has advantages such as strong self-starting ability, simple structure and easy maintenance, strong adaptability and no need for yaw device, and has attracted the attention of more and more researchers and investors.

[0003] According to the principle of wind power generation structure, the power generation is proportional to the cube of the wind speed. Therefore, the power generation can be increased by increasing the wind speed, thereby improving the utilization rate of wind resources. At present, the wind power generation structures known on the market usually increase the wind speed reaching the wind turbine through a wind gathering mechanism. However, the existing wind gathering mechanisms used in vertical axis wind power generation structures mainly adopt fixed and all-round wind gathering mechanisms, which are more expensive and less effective. Summary of the invention

[0004] The present invention provides a vertical axis wind power generation structure with flexible wind gathering, which is used to solve the technical problems of high cost and poor effect of wind gathering mechanisms of current vertical axis wind power generation structures.

[0005] In order to solve the above technical problems, the present invention proposes a vertical axis wind power generation structure with flexible wind gathering, comprising: a supporting mechanism, including a fixed frame, a rotating frame rotatably mounted on the fixed frame, and a yaw device, wherein the yaw device is used to drive the rotating frame to rotate on the fixed frame; a wind gathering mechanism, mounted on the rotating frame, comprising an air inlet and an air outlet, the area of ​​the air inlet being larger than the area of ​​the air outlet; and a vertical axis fan, mounted on the fixed frame.

[0006] As a further improvement of the above technical solution:

[0007] The wind gathering mechanism includes a plurality of wind gathering plates, which together form a trumpet-shaped air inlet mechanism. The end of the air inlet mechanism with a smaller opening area is the air outlet of the air inlet mechanism, and the end of the air inlet mechanism with a larger opening area is the air inlet of the air inlet mechanism.

[0008] As a further improvement of the above technical solution:

[0009] The wind gathering mechanism also includes a hollow channel and an air outlet mechanism. The air outlet mechanism has the same shape as the air inlet mechanism. The air inlet mechanism and the air outlet mechanism are respectively installed on opposite sides of the rotating frame. The two ends of the hollow channel are respectively connected to the air inlet mechanism and the air outlet mechanism. The vertical axis fan is arranged in the hollow channel. The geometric centers of the air inlet mechanism, the hollow channel and the air outlet mechanism are located in the same plane.

[0010] As a further improvement of the above technical solution:

[0011] The wind gathering mechanism comprises at least two non-parallel wind gathering plates, the two wind gathering plates arranged opposite to each other are symmetrical, and the angle α between the two wind gathering plates arranged opposite to each other is 0°<α<180°.

[0012] As a further improvement of the above technical solution:

[0013] The yaw device comprises a motor, the motor is mounted on the fixed frame, and the driving end of the motor is connected to the rotating frame.

[0014] As a further improvement of the above technical solution:

[0015] The yaw device also includes a wind vane, a transmission device and a control device. The wind vane and the motor are both installed on the fixed frame and electrically connected to the control device. The first end of the transmission device is connected to the rotating shaft of the motor, and the second end of the transmission device is connected to the rotating frame.

[0016] As a further improvement of the above technical solution:

[0017] The yaw device also includes an anemometer electrically connected to the control device. The transmission device includes a first gear and a second gear. The first gear is installed on the rotating shaft of the motor, and the second gear is fixedly installed on the rotating frame. The first gear meshes with the second gear.

[0018] As a further improvement of the above technical solution:

[0019] The yaw device also includes a tail wing plate, which is installed on the rotating frame and is arranged opposite to the wind gathering mechanism.

[0020] As a further improvement of the above technical solution:

[0021] The supporting mechanism also includes an auxiliary bracket, one end of which is connected to the rotating frame, and the other end of which is rotatably mounted on the fixed frame.

[0022] As a further improvement of the above technical solution:

[0023] The vertical axis fan comprises a fan and a fan blade assembly. The fan blade assembly is rotatably mounted on the fan, and the fan is mounted on the fixing frame.

[0024] The present invention has the following beneficial effects: in the flexible wind-gathering vertical-axis wind power generation structure of the embodiment of the present invention, natural wind enters through the large-area air inlet of the wind-gathering mechanism, and then is output through the small-area air outlet, thereby increasing the wind speed reaching the vertical-axis wind fan and improving the power generation efficiency; and the rotating frame and the wind-gathering mechanism can be driven to rotate on the fixed frame through the yaw device, so that the air inlet of the wind-gathering mechanism is always facing the incoming wind direction, thereby making the vertical-axis wind fan more efficient in power generation and more efficient in wind energy utilization.

[0025] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 It is a structural schematic diagram of a vertical axis wind power generation structure with flexible wind gathering according to a preferred embodiment of the present invention;

[0028] Figure 2 It is a structural schematic diagram of a vertical axis wind power generation structure with flexible wind gathering according to another preferred embodiment of the present invention;

[0029] Figure 3 It is a structural schematic diagram of a vertical axis wind power generation structure with flexible wind gathering according to another preferred embodiment of the present invention;

[0030] Figure 4 It is a partial structural schematic diagram of a vertical axis wind power generation structure with flexible wind gathering according to a preferred embodiment of the present invention;

[0031] Figure 5 yes Figure 4 A magnified image of point A;

[0032] Figure 6 yes Figure 3 A top view of a flexible wind-gathering vertical-axis wind turbine structure.

[0033] The symbols in the figure represent:

[0034] 10. Wind gathering mechanism; 11. Air inlet mechanism; 111. Wind gathering plate; 12. Square channel; 13. Air outlet mechanism; 20. Vertical axis fan; 21. Fan; 22. Fan blade assembly; 30. Support mechanism; 31. Rotating frame; 32. Fixed frame; 33. Auxiliary bracket; 40. Yaw device; 41. Tail plate; 42. Motor; 421. Wind vane; 422. Anemometer; 423. Transmission device; 4231. First gear; 4232. Second gear. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0036] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of this application shall be the common meanings understood by the general technicians in the field to which this application belongs. The words "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inside", "outside" and other words indicating orientation used in the description of this application are only used to indicate the relative direction or positional relationship, and do not imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, so it cannot be understood as a limitation on this application. The "first", "second", "third" and similar terms used in the description of this application are only used for descriptive purposes to distinguish different components, and cannot be understood as indicating or implying relative importance. The similar words "one", "one" or "the" used in the description of this application should not be understood as an absolute limitation on quantity, but should be understood as the existence of at least one. The similar words "including" or "comprising" used in the description of this application mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0037] It should also be noted that, unless otherwise clearly specified and limited, the words "installed", "connected", "connected" and similar terms used in the description of this application should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. Technical personnel in the field can understand their specific meanings in this application according to the specific circumstances.

[0038] like Figures 1 to 4As shown, the flexible wind-gathering vertical-axis wind power generation structure of this embodiment comprises: a supporting mechanism 30, comprising a fixed frame 32, a rotating frame 31 rotatably mounted on the fixed frame 32, and a yaw device 40, wherein the yaw device 40 is used to drive the rotating frame 31 to rotate on the fixed frame 32; a wind-gathering mechanism 10, mounted on the rotating frame 31, comprising an air inlet and an air outlet, wherein the area of ​​the air inlet is larger than the area of ​​the air outlet; and a vertical-axis fan 20, mounted on the fixed frame 32.

[0039] It can be understood that the flexible wind gathering vertical axis wind power generation structure of this embodiment can be various types of vertical axis wind power generation structures, such as Figure 1 The drag type vertical axis wind power generation structure shown, or Figure 3 The lift-type wind power generation structure shown in the figure, the vertical axis wind power generation structure of this embodiment is specifically applied to Figure 1 The resistance-type vertical axis wind turbine structure is used as an example to illustrate.

[0040] The fixed frame 32 is a support rod that can raise the height of the vertical axis fan 20. The vertical axis fan 20 is fixed on the fixed frame 32. The rotating frame 31 is a square frame that can rotate around the vertical axis fan 20, and the axial direction of the rotating shaft of the vertical axis fan 20 is used as the rotation axis. A bearing is provided between the rotating frame 31 and the fixed frame 32. Specifically, in this embodiment, the support rod passes through the entire rotating frame 31, and the top and bottom of the frame of the rotating frame 31 are rotatably connected to the support rod through bearings. The vertical axis fan 20 is sleeved on the support rod between the top and bottom of the frame of the rotating frame 31. The fan 21 of the vertical axis fan 20 is fixedly connected to the support rod, and the fan blade assembly 22 is rotatably sleeved on the support rod. The fan blade assembly 22 is coaxial with the support rod. When the fan blade assembly 22 rotates, it drives the fan 21 to rotate to generate electricity.

[0041] In this embodiment, the air inlet area of ​​the wind gathering mechanism 10 is larger than the air outlet area. When the airflow flows from a large-area opening to a small-area opening, the air mass cannot accumulate in large quantities, so it accelerates to flow through the small-area opening, increasing the wind speed. Therefore, the wind gathering device of this embodiment can make the wind speed output from the small-area air outlet greater than the wind speed entering the large-area air inlet.

[0042] In the flexible wind-gathering vertical-axis wind power generation structure of the present embodiment, natural wind enters through the large-area air inlet of the wind-gathering mechanism 10, and then is output through the small-area air outlet, thereby increasing the wind speed reaching the vertical-axis fan 20, thereby improving the power generation efficiency of the vertical-axis fan 20 and enhancing the utilization rate of wind energy; the present embodiment can also drive the rotating frame 31 and the wind-gathering mechanism 10 to rotate on the fixed frame 32 through the yaw device 40, so that the air inlet of the wind-gathering mechanism 10 is always facing the incoming wind direction, thereby making the vertical-axis fan 20 more efficient in power generation and more efficient in wind energy utilization.

[0043] In a possible embodiment, Figure 1 As shown, the wind gathering mechanism 10 includes a plurality of wind gathering plates 111, which together form a trumpet-shaped air inlet mechanism 11. The end of the air inlet mechanism 11 with a smaller opening area is the air outlet of the air inlet mechanism 11, and the end of the air inlet mechanism 11 with a larger opening area is the air inlet of the air inlet mechanism 11.

[0044] The wind gathering mechanism 10 includes a plurality of wind gathering plates 111, which are trapezoidal flat plates. The oblique sides of the trapezoidal flat plates are connected to form a trumpet-shaped air inlet mechanism 11, the top sides of all the trapezoidal flat plates constitute the air outlet of the air inlet mechanism 11, and the bottom sides of all the trapezoidal flat plates constitute the air inlet of the air inlet mechanism 11. The angle β between the two oblique sides of the trapezoidal flat plates is 0°<β<180°.

[0045] Among them, the cross-section of the trumpet-shaped air inlet mechanism 11 can be either square, circular or polygonal. In this embodiment, the cross-section of the air inlet mechanism 11 is square as an example for explanation; specifically, in this embodiment, the wind gathering mechanism 10 specifically includes four wind gathering plates 111. In other embodiments, it can also be composed of three, five or other numbers of wind gathering plates 111; in this embodiment, the four wind gathering plates 111 are trapezoidal flat plates of the same shape, specifically, the trapezoidal flat plates are isosceles trapezoidal flat plates, and the hypotenuses of the four trapezoidal flat plates are sequentially connected and assembled into a trumpet-shaped air inlet mechanism 11. Since the length of the top side of the trapezoidal flat plate is greater than the length of the bottom side, the top sides of all the trapezoidal flat plates constitute the air outlet of the air inlet mechanism 11, and the bottom sides of all the trapezoidal flat plates constitute the air inlet of the air inlet mechanism 11. The angle β between the two hypotenuses of the trapezoidal flat plate is 0°<β<180°, and β in this embodiment is specifically 60°. The wind gathering plates 111 in this embodiment are trapezoidal flat plates in order to construct the trumpet-shaped air inlet mechanism 11.

[0046] In the flexible wind-gathering vertical-axis wind power generation structure of the present embodiment, when wind enters from the air inlet, the air inlet mechanism 11 limits the wind escape, and the wind can only be discharged from the air outlet. Since the air mass cannot accumulate in large quantities, it is accelerated to flow through a small-area opening, thereby making the wind speed at the air outlet faster and making the vertical-axis wind turbine located at the air outlet more efficient in generating electricity.

[0047] In a possible embodiment, Figure 2 As shown, the air gathering mechanism 10 also includes a hollow channel 12 and an air outlet mechanism 13. The air outlet mechanism 13 has the same shape as the air inlet mechanism 11. The air inlet mechanism 11 and the air outlet mechanism 13 are respectively installed on opposite sides of the rotating frame 31. The two ends of the hollow channel 12 are respectively connected to the air inlet mechanism 11 and the air outlet mechanism 13. The vertical axis fan 20 is arranged in the hollow channel 12. The geometric centers of the air inlet mechanism 11, the hollow channel 12 and the air outlet mechanism 13 are located in the same plane.

[0048] It can be understood that in a large vertical axis wind power generation structure, since the air inlet of the air inlet mechanism 11 has to cover the entire vertical axis fan 20, the volume of the air inlet mechanism 11 on one side of the rotating frame 31 will also be very large. The large volume of the air inlet mechanism 11 will cause uneven force on the rotating frame 31, so that the vertical axis wind power generation structure is at risk of tipping over. In this embodiment, an air outlet mechanism 13 is arranged on the opposite side of the air inlet mechanism 11. Since the air outlet mechanism 13 has the same shape as the air inlet mechanism 11, the air outlet mechanism 13 can balance the weight of the air inlet mechanism 11, so that the force on both sides of the rotating frame 31 is even, and the rotating frame 31 is kept evenly balanced. The cross-section of the hollow channel 12 can be square, circular, polygonal or any other regular and irregular shapes. The square hollow channel 12 is used as an example for explanation in this embodiment. The square hollow channel 12 can prevent the wind from escaping to the surroundings. The geometric centers of the air inlet mechanism 11, the hollow channel 12 and the air outlet mechanism 13 are located in the same plane, thereby constructing a channel through which the wind can flow smoothly. The wind entering the air inlet mechanism 11 needs to pass through the vertical axis fan 20 before it can flow out of the air outlet mechanism 13, thereby further enhancing the power generation efficiency of the vertical axis fan 20.

[0049] In another possible embodiment, Figure 3 and Figure 6 As shown, the wind gathering mechanism 10 includes at least two non-parallel wind gathering plates 111, the two wind gathering plates 111 arranged opposite to each other are symmetrical, and the angle α between the wind gathering plates 111 arranged opposite to each other is 0°<α<180°.

[0050] Specifically, in the present embodiment, there are two wind gathering plates 111, which are square plates. The two wind gathering plates 111 are symmetrically fixed on the rotating frame 31, and the angle α between the two wind gathering plates 111 is 60°. Such an arrangement can make the air inlet area of ​​the air inlet of the wind gathering mechanism 10 larger than the air outlet area of ​​the air outlet, thereby increasing the wind speed at the air outlet. At the same time, the wind gathering mechanism 10 of the present embodiment has a simple structure and a lower manufacturing cost.

[0051] In a possible embodiment, Figure 4 and Figure 5 As shown, the yaw device 40 includes a motor 42 . The motor 42 is mounted on the fixed frame 32 , and a driving end of the motor 42 is connected to the rotating frame 31 .

[0052] Specifically, the yaw device 40 also includes a wind vane 421, a transmission device 423 and a control device. The wind vane 421 and the motor 42 are both installed on the fixed frame 32 and electrically connected to the control device. The first end of the transmission device 423 is connected to the rotating shaft of the motor 42, and the second end of the transmission device 423 is connected to the rotating frame 31.

[0053] It can be understood that the anemometer 421 is installed on the fixed frame 32, and the initial direction of the anemometer 421 is set to be consistent with the opening direction of the wind gathering mechanism 10. The wind direction is monitored by the tail wing at the head of the anemometer 421. When the wind direction is inconsistent with the opening direction of the wind gathering mechanism 10, the anemometer 421 transmits the deflection angle between the wind gathering mechanism 10 and the wind direction to the control device in the form of an electrical signal. The control device is provided with a control chip, which can obtain the electrical signal and control the motor 42 to rotate. The control device controls the motor 42 to rotate, and then drives the rotating frame 31 to deflect at the same angle as the wind direction through the transmission device.

[0054] In a possible embodiment, the yaw device 40 also includes an anemometer 422 electrically connected to the control device, and the transmission device 423 includes a first gear 4231 and a second gear 4232, the first gear 4231 is installed on the rotating shaft of the motor 42, the second gear 4232 is fixedly installed on the rotating frame 31, and the first gear 4231 meshes with the second gear 4232.

[0055] Among them, the anemometer 422 can obtain the wind speed. Only when the control device monitors that the wind speed obtained by the anemometer 422 reaches a preset threshold, the motor 42 can be started. The preset threshold of this embodiment is the minimum wind speed at which the vertical axis wind turbine 20 can generate electricity. When the wind speed is low, the motor 42 is turned off to avoid mechanical wear and waste of electricity.

[0056] In this embodiment, the motor 42 is used to drive the rotating frame 31 to rotate. Since the rotation axis of the rotating frame 31 is consistent with the axis of the fixed frame 32, the motor 42 cannot directly drive the rotating frame 31 to rotate through the rotating shaft. The second gear 4232 in this embodiment is rotatably mounted on the fixed frame 32. Therefore, the axis of the second gear 4232 is the same as the rotation axis of the rotating frame 31. The motor 42 drives the first gear 4231 to rotate, thereby driving the second gear 4232 and the rotating frame 31 to rotate.

[0057] It can be understood that the transmission device 423 transmits the rotational motion of the shaft of the motor 42 to the rotating frame 31, so that the motor 42 can drive the rotating frame 31 to rotate. Therefore, the transmission device 423 is not limited to the gear transmission device in this embodiment. In other embodiments, belt transmission or ratchet mechanism transmission can also be used for transmission. Or, in some embodiments, the shaft of the motor 42 can also be made coaxial with the rotation axis of the rotating frame 31, thereby eliminating the transmission device 423 and directly driving the rotating frame 31 to rotate with the motor 42.

[0058] In a possible embodiment, Figure 1 and Figure 3 As shown, the yaw device 40 further includes a tail wing plate 41 , which is mounted on the rotating frame 31 and is arranged opposite to the wind gathering mechanism 10 .

[0059] It can be understood that the tail wing plate 41 is installed on the side of the rotating frame 31 opposite to the air inlet mechanism 11 of the wind gathering mechanism 10, so as to balance the weight of the wind gathering mechanism 10 and make the overall stability of the structure stronger. The extension direction of the tail wing plate 41 is consistent with the air inlet direction of the wind gathering mechanism 10. Therefore, when the tail wing plate 41 is inconsistent with the wind direction, the tail wing plate 41 will be subjected to wind pressure and generate a deflection force, which will drive the tail wing plate 41 to rotate, and then drive the rotating frame 31 and the wind gathering mechanism 10 to rotate until the extension direction of the tail wing plate 41 is consistent with the wind direction. At this time, the air inlet of the wind gathering mechanism 10 will also face the incoming wind direction. Through the tail wing plate 41, the air inlet of the wind gathering mechanism 10 can always face the incoming wind.

[0060] It should be noted that, in the vertical axis wind power generation structure of this embodiment, only the motor 42 can be provided to drive the rotating frame 31 to rotate, so that the opening of the wind gathering mechanism 10 can be rotated to face the incoming wind direction with higher accuracy; only the tail wing plate 41 can be provided to drive the rotating frame 31 to rotate, so that the structure is simpler; or the tail wing plate 41 and the motor 42 can be provided at the same time to jointly drive the rotating frame 31 to rotate, so that the wind gathering mechanism 10 has higher wind reliability.

[0061] In a possible embodiment, Figure 1 and Figure 3 As shown, the tail wing plate 41 includes two flat plates, and the two tail wing plates 41 are respectively located at the upper and lower ends of the rotating frame 31 on a side away from the wind gathering mechanism 10.

[0062] It can be understood that the tail wing panels 41 in the present embodiment are two flat panels, which may be square, circular or other irregular polygonal shapes. The tail wing panels 41 in the present embodiment are specifically irregular quadrilateral flat panels. The two tail wing panels 41 are symmetrically mounted on the rotating frame 31 at the upper and lower ends of the side of the air inlet mechanism 11 away from the wind gathering mechanism 10, so as to balance the weight of the wind gathering mechanism 10 of the rotating frame 31 and maintain structural stability. The two tail wing panels 41 have a larger wind receiving area. When the tail wing panels 41 are inconsistent with the wind direction, the tail wing panels 41 will be subjected to greater wind pressure and thus generate greater deflection force.

[0063] In a possible embodiment, Figures 1 to 3 As shown, the supporting mechanism 30 further includes an auxiliary bracket 33 , one end of the auxiliary bracket 33 is connected to the rotating bracket 31 , and the other end of the auxiliary bracket 33 is rotatably mounted on the fixed bracket 32 ​​.

[0064] It can be understood that when the size of the wind gathering mechanism 10 is large, the wind gathering mechanism 10 is greatly affected by its own weight. In this embodiment, an auxiliary bracket 33 is arranged under the rotating frame 31 as an auxiliary support. The upper part of the auxiliary bracket 33 is fixed to the rotating frame 31, and the lower part is a slip ring structure, which is connected to the fixed frame 32 through a pulley. The auxiliary bracket 33 can rotate with the rotating frame 31 relative to the fixed frame 32.

[0065] In a possible embodiment, the vertical axis fan 20 includes a fan 21 and a fan blade assembly 22 . The fan blade assembly 22 is rotatably mounted on the fan 21 , and the fan 21 is mounted on a fixing frame 32 .

[0066] Among them, the fan blade assembly 22 includes a fan blade and a rotating shaft. The fan blade is connected to the fan 21 through the rotating shaft. When the fan blade is blown by the wind, the rotating shaft will be driven to rotate. When the rotating shaft rotates, the fan 21 generates electricity. The air intake mechanism 11 of the wind gathering mechanism 10 increases the wind speed reaching the fan blade, thereby enhancing the power generation efficiency.

[0067] The flexible wind-gathering vertical-axis wind power generation structure provided in the above embodiments of the present application has at least the following characteristics:

[0068] 1. The air inlet area of ​​the wind gathering mechanism 10 is larger than the air outlet area. When the airflow flows from the large-area opening to the small-area opening, the air mass cannot accumulate in large quantities, so it accelerates to flow through the small-area opening, thereby increasing the wind speed reaching the vertical-axis fan 20, thereby making the vertical-axis fan 20 have a greater power generation efficiency and a higher utilization rate of wind energy.

[0069] 2. The tail wing plate 41 and / or the motor 42 can be used to drive the rotating frame 31 to drive the wind gathering mechanism 10 to rotate together, so that the air inlet of the wind gathering mechanism 10 is always facing the incoming wind direction, further enhancing the utilization rate of wind energy.

[0070] 3. The tail wing plate 41 can also balance the weight of the wind gathering mechanism 10, making the overall structure more stable.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vertical axis wind power generation structure with flexible wind gathering, characterized in that: include: A support mechanism (30) comprises a fixed frame (32), a rotating frame (31) rotatably mounted on the fixed frame (32), and a yaw device (40), wherein the yaw device (40) is used to drive the rotating frame (31) to rotate on the fixed frame (32); An air gathering mechanism (10) is mounted on the rotating frame (31), comprising an air inlet and an air outlet, wherein the area of ​​the air inlet is larger than the area of ​​the air outlet; The vertical axis fan (20) is installed on the fixing frame (32).

2. The flexible wind gathering vertical axis wind power generation structure according to claim 1 is characterized in that: The wind gathering mechanism (10) comprises a plurality of wind gathering plates (111), and the plurality of wind gathering plates (111) are combined to form a trumpet-shaped air inlet mechanism (11), the end of the air inlet mechanism (11) with a smaller opening area is the air outlet of the air inlet mechanism (11), and the end of the air inlet mechanism (11) with a larger opening area is the air inlet of the air inlet mechanism (11).

3. The flexible wind gathering vertical axis wind power generation structure according to claim 2 is characterized in that: The wind gathering mechanism (10) further comprises a hollow channel (12) and an air outlet mechanism (13). The air outlet mechanism (13) is of the same shape as the air inlet mechanism (11); the air inlet mechanism (11) and the air outlet mechanism (13) are respectively mounted on opposite sides of the rotating frame (31); the two ends of the hollow channel (12) are respectively connected to the air inlet mechanism (11) and the air outlet mechanism (13); the vertical axis fan (20) is arranged in the hollow channel (12); and the geometric centers of the air inlet mechanism (11), the hollow channel (12) and the air outlet mechanism (13) are located in the same plane.

4. The flexible wind gathering vertical axis wind power generation structure according to claim 1 is characterized in that: The wind gathering mechanism (10) comprises at least two non-parallel wind gathering plates (111), the two wind gathering plates (111) arranged opposite to each other are symmetrical, and the angle α between the two wind gathering plates (111) arranged opposite to each other is 0°<α<180°.

5. The flexible wind gathering vertical axis wind power generation structure according to claim 1 is characterized in that: The yaw device (40) comprises a motor (42), The motor (42) is mounted on the fixed frame (32), and the driving end of the motor (42) is connected to the rotating frame (31).

6. The flexible wind gathering vertical axis wind power generation structure according to claim 5 is characterized in that: The yaw device (40) further includes a wind vane (421), a transmission device (423) and a control device. The wind vane (421) and the motor (42) are both mounted on the fixed frame (32) and electrically connected to the control device; a first end of the transmission device (423) is connected to the rotating shaft of the motor (42); a second end of the transmission device (423) is connected to the rotating frame (31); and the control device is used to obtain the wind direction and control the rotation amount of the motor (42).

7. The flexible wind gathering vertical axis wind power generation structure according to claim 6 is characterized in that: The yaw device (40) further comprises an anemometer (422) electrically connected to the control device, and the transmission device (423) comprises a first gear (4231) and a second gear (4232). The first gear (4231) is mounted on the rotating shaft of the motor (42), the second gear (4232) is fixedly mounted on the rotating frame (31), and the first gear (4231) meshes with the second gear (4232).

8. The flexible wind gathering vertical axis wind power generation structure according to claim 5 is characterized in that: The yaw device (40) further comprises a tail wing plate (41), The tail wing plate (41) is mounted on the rotating frame (31) and is arranged opposite to the wind gathering mechanism (10).

9. The flexible wind gathering vertical axis wind power generation structure according to claim 1, characterized in that: The supporting mechanism (30) further comprises an auxiliary bracket (33), one end of the auxiliary bracket (33) being connected to the rotating bracket (31) and the other end being rotatably mounted on the fixed bracket (32).

10. The flexible wind gathering vertical axis wind power generation structure according to claim 1, characterized in that: The vertical axis fan (20) comprises a fan (21) and a fan blade assembly (22), wherein the fan blade assembly (22) is rotatably mounted on the fan (21), and the fan (21) is mounted on the fixing frame (32).

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