A pinnate device and a wind power device

Abstract

The present application relates to a kind of feather-like device and wind power generation device, the feather-like device includes installation base, feather-like component and control component, installation base includes base body and first driving device, first driving device is set in base body, one end of feather-like component is connected to the driving end of first driving device, to drive feather-like component reciprocating between first position and second position relative to blade, control component includes controller, environment detection device and state detection device, controller is used to control the working state of first driving device according to the detection information of environment detection device and state detection device.The above-mentioned feather-like device makes the windward area of the blade of wind power generation device can change with environment, real-time regulation and control the effective force area of blade, avoid when lower wind speed, part of wind power from the air flow around the outside of blade, difficult to reach the problem such as driving wind wheel rotation, reduce wind energy loss, better capture wind energy, can effectively improve power generation efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wind power generation technology, in particular to a pinnate device and a wind power generation device. BACKGROUND

[0002] As a clean energy, wind power generation does not produce greenhouse gases such as carbon dioxide in the process of power generation compared with traditional fossil fuel power generation, which helps to reduce greenhouse gas emissions, can significantly reduce air pollution, improve air quality, and has important significance for mitigating climate change, protecting the ecological environment and alleviating the risks brought by resource shortage.

[0003] The existing wind power generation device mainly consists of a support, a wind wheel and a generator, wherein the wind wheel is rotatably arranged at the top of the support and is in transmission connection with the generator. When the wind blows, it will drive the wind wheel at the top of the support to rotate, convert wind energy into mechanical energy, and then drive the rotor of the generator to rotate, convert mechanical energy into electrical energy, and achieve the purpose of wind power generation.

[0004] However, the existing wind power generation device, at a lower wind speed, the conventional wind wheel blade is difficult to fully utilize wind energy, that is, the contact area of the blade with the wind is constant, when the wind force is small, part of the wind force flows around the outside of the blade, which is difficult to drive the wind wheel to rotate and achieve the purpose of power generation. If the contact area of the blade with the wind is increased, it will cause excessive wind resistance when the wind force is large, which will affect the operation of the equipment. SUMMARY

[0005] The first object of the present application is to provide a pinnate device, so that when it is applied to the wind wheel blade of the wind power generation device, the contact area of the blade with the wind can change with the change of the wind speed, improve the wind energy capture efficiency of the wind wheel of the wind power generation device, and further improve the power generation efficiency.

[0006] The second object of the present application is to provide a wind power generation device based on the above-mentioned pinnate device.

[0007] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0008] A pinnate device for being arranged on a blade of a wind wheel of a wind power generation device, comprising:

[0009] A mounting base, the mounting base comprises a base body and a first driving device, the base body is used for mounting on the blade, and the first driving device is arranged on the base body;

[0010] a feather-shaped assembly, one end of the feather-shaped assembly is connected to a driving end of the first driving device, the first driving device is used to drive the feather-shaped assembly to reciprocate relative to the blade between a first position and a second position, when the feather-shaped assembly is in the first position, a projection of the feather-shaped assembly on a rotation plane of the wind wheel is at least partially located outside a projection of the blade on the rotation plane of the wind wheel, when the feather-shaped assembly is in the second position, the projection of the feather-shaped assembly on the rotation plane of the wind wheel is located inside the projection of the blade on the rotation plane of the wind wheel;

[0011] a control assembly, the control assembly comprises a controller, an environment detection device and a state detection device, the environment detection device is used to detect preset environment information, the state detection device is used to detect preset state information of the feather-shaped assembly, and the controller is used to control an operating state of the first driving device according to detection information of the environment detection device and the state detection device.

[0012] In an embodiment of the present application, the first driving device comprises:

[0013] a rotating shaft, the rotating shaft is rotatably arranged on the base body, and one end of the feather-shaped assembly is fixedly arranged on the rotating shaft;

[0014] a rotating driver, the rotating driver is arranged on the base body and is in transmission connection with the rotating shaft, and the rotating driver is in communication connection with the controller.

[0015] In an embodiment of the present application, the base body is provided with an open mounting groove, two ends of the rotating shaft are rotatably arranged on two opposite groove walls of the open mounting groove respectively, and at least a part of one end of the feather-shaped assembly connected with the rotating shaft can be embedded in the open mounting groove.

[0016] In an embodiment of the present application, the feather-shaped assembly comprises:

[0017] a base member, a first end of the base member along a length direction of the feather-shaped assembly is connected with the driving end of the first driving device;

[0018] an end member, a second end of the base member along the length direction of the feather-shaped assembly is connected with the end member through a second driving device, and the second driving device is used to drive the end member to reciprocate relative to the base member along the length direction of the feather-shaped assembly.

[0019] In an embodiment of the present application, one of the base member and the end member is provided with a sliding groove, and a part of the other of the base member and the end member is embedded in the sliding groove.

[0020] In one embodiment of this application, the end member includes a sliding connection portion and a tip portion. The tip portion is detachably connected to a first end of the sliding connection portion along the length direction of the feather-shaped component. The sliding connection portion is provided with a groove or partially slidably embedded in the groove provided in the base member at a second end along the length direction of the feather-shaped component.

[0021] In one embodiment of this application, the feather-like component further includes an expandable component disposed on at least one side surface of the base member. The expandable component is capable of expanding or contracting to increase or decrease the size of the feather-like component in at least one of the width and thickness directions.

[0022] In one embodiment of this application, the expandable component includes:

[0023] A first expansion member, comprising a first airbag and a first inflation / deflation device, wherein the first airbag is detachably disposed on at least one side surface of the base member along the thickness direction of the feather-shaped component, and the first inflation / deflation device is disposed on the base body and communicates with the first airbag.

[0024] The second expansion member includes a second airbag and a second inflation / deflation device. The second airbag is detachably disposed on at least one side surface of the base member and / or the first airbag along the width direction of the feather-shaped component. The second inflation / deflation device is in communication with the second airbag.

[0025] In one embodiment of this application, the environmental detection device includes at least one of a wind speed sensor and a wind direction sensor, and the state detection device includes at least one of a position sensor, a temperature sensor, and a vibration sensor.

[0026] A wind power generation device includes a support frame and a wind turbine rotatably mounted on top of the support frame. The wind turbine has a plurality of blades evenly distributed around its circumference, and the blades are provided with a plurality of feather-like devices as described in any of the above descriptions at intervals.

[0027] From the above technical scheme can be seen, the present application discloses a kind of feather-like device, the feather-like device includes installation base, feather-like component and control component, wherein, installation base includes base body and first driving device, base body is used to install to blade, first driving device is arranged in base body, one end of feather-like component is connected to the driving end of first driving device, first driving device is used to drive feather-like component reciprocating between first position and second position relative to blade, when feather-like component is in first position, the projection of feather-like component in the rotation plane of wind wheel at least part is located outside the projection of blade in the rotation plane of wind wheel, when feather-like component is in second position, the projection of feather-like component in the rotation plane of wind wheel is located in the projection of blade in the rotation plane of wind wheel, control component includes controller, environment detection device and state detection device, environment detection device is used to detect preset environmental information, state detection device is used to detect preset state information of feather-like component, controller is used to control the working state of first driving device according to the detection information of environment detection device and state detection device.

[0028] In application, environment detection device detects environmental wind speed and / or wind direction in real time, when the information obtained by controller meets preset deployment requirement, controller controls first driving device to move feather-like component to first position, so as to increase the windward area of blade, when the information obtained by controller meets preset collection requirement, controller controls first driving device to move feather-like component to second position, at this time, the windward area of blade is minimum, to avoid that excessive wind resistance affects equipment safety.

[0029] By setting the above feather-like device, the windward area of blade of wind power generation device can change with environment, to real-time regulate and control effective stress area of blade, avoid that part of wind power flows around from outside of blade at lower wind speed, to avoid problems such as difficult to drive wind wheel to rotate, reduce wind energy loss, better capture wind energy, can effectively improve power generation efficiency.

[0030] The present application also discloses a kind of wind power generation device, since the blade of the wind power generation device uses the above feather-like device, therefore the wind power generation device should have the same beneficial effects, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, without creative labor, other drawings can also be obtained from these drawings.

[0032] Figure 1 It is a partial structure schematic view of the blade of the feather-like device provided by the embodiment of the present application.

[0033] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0034] Figure 3 This is a partially enlarged schematic diagram of the blade with the feather-like device provided in the embodiment of the present invention at the installation position of the feather-like device;

[0035] Figure 4 for Figure 3 A magnified view of a portion of point B in the middle;

[0036] Figure 5 A partially enlarged schematic diagram of the feather component of the feather-like device provided in an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the end component of the feather-shaped device provided in an embodiment of the present invention;

[0038] Figure 7 for Figure 3 A magnified view of a portion of point C in the middle;

[0039] Figure 8 This is a schematic diagram of the windward side of a wind power generation device provided in an embodiment of the present invention;

[0040] Figure 9 for Figure 8 A magnified view of a portion of point D in the middle;

[0041] Figure 10 This is a schematic diagram of the leeward side of a wind power generation device provided in an embodiment of the present invention.

[0042] In the picture:

[0043] 100 represents the blade; 110 represents the first surface; 120 represents the second surface;

[0044] 200 is a feather-shaped device; 210 is a mounting base; 211 is the base body; 212 is an open mounting slot; 213 is a rotating shaft; 220 is a control box; 230 is a feather-shaped assembly; 231 is a base component; 232 is an end component; 2321 is a sliding connection; 2322 is a tip; 2323 is a second drive device; 233 is an inflatable assembly; 2331 is a first inflatable component; 23311 is a first airbag; 23312 is a first inflation / deflation device; 2332 is a second inflatable component; 23321 is a second airbag; 23322 is a second inflation / deflation device.

[0045] 300 is a threaded fastener; 310 is a stud; 320 is a nut.

[0046] 400 is a disc; 500 is a bracket; 600 is a mounting shaft. Detailed Implementation

[0047] One of the core aspects of this invention is to provide a feather-shaped device. The structural design of this feather-shaped device allows the contact area between the blade and the wind to vary with the wind speed when applied to the wind turbine blades of a wind power generation device, thereby improving the wind energy capture efficiency of the wind turbine and thus increasing the power generation efficiency.

[0048] Another core aspect of this invention is to provide a wind power generation device employing the aforementioned feather-shaped device.

[0049] 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.

[0050] Please see Figures 1 to 3 , Figure 1 This is a partial structural diagram of a blade having the feather-like device provided in an embodiment of the present invention. Figure 2 for Figure 1 A magnified view of a portion of point A in the diagram. Figure 3 This is a partially enlarged schematic diagram of the blade with the feather-like device provided in the embodiment of the present invention at the installation position of the feather-like device.

[0051] This invention discloses a feather-shaped device 200 for use on the blade 100 of a wind turbine in a wind power generation device. The blade 100 has a windward side and a leeward side. The distance between the windward side and the leeward side gradually decreases from the middle to both ends along the chord direction to form the leading edge and trailing edge of the blade 100. The windward side of the blade 100 is the part of the blade 100 facing the wind, and it mainly plays the role of capturing wind energy and converting it into mechanical energy. The wind speed facing the windward side is relatively high. The windward side is generally a convex surface, which can create separation points on the surface of the blade 100 and accelerate the air to a certain extent, thereby making full use of wind energy.

[0052] To reduce friction and air resistance when air flows over the surface of the blade 100 and to avoid wind energy loss due to excessive friction, the leeward side of the blade 100 is generally a flat or concave surface with a relatively regular shape.

[0053] Specifically, the feather-like device 200 can be disposed at least on the windward side, the leeward side, and inside the blade 100. It should be noted that the feather-like device 200 can be openly mounted on the surface of the blade 100, that is, regardless of whether the feather-like device 200 is in the first position or the second position, the feather-like device 200 is completely protruding from the surface of the blade 100. When the feather-like device 200 is disposed inside the blade 100, that is, the feather-like device 200 is concealed, in the first position, the feather-like device 200 extends outward from inside the blade 100, and in the second position, the feather-like device 200 is completely embedded in the blade 100 or at least partially embedded in the blade 100. Of course, the shape and structure of the feather-like device 200 can be designed so that when it is in the second position, the surface of the blade 100 is a smooth, non-protruding curved surface.

[0054] Please see Figures 1 to 3 The feather-shaped device 200 includes a mounting base 210, a feather-shaped assembly 230, and a control assembly.

[0055] The mounting base 210 serves to fix the feather device 200 to the blade 100 and to provide an installation position for the feather assembly 230 and the control assembly. The mounting base 210 includes a base body 211 and a first drive device. The base body 211 is used to install on the blade 100. The base body 211 and the blade 100 are connected by a fixed connection or a detachable connection. The fixed connection method includes, but is not limited to, welding and integral molding. The detachable connection method includes, but is not limited to, threaded fastener 300 connection and threaded connection.

[0056] like Figure 1 and Figure 2 As shown, in one embodiment of this application, the feather device 200 is installed on the blade 100 in an exposed manner by means of threaded fasteners 300. The threaded fasteners 300 include studs 310 and nuts 320. A mounting through hole is provided on one side surface of the blade 100 near the leading edge and / or trailing edge. A stud 310 is provided on the side surface of the base body 211 away from the feather assembly 230. After the stud 310 passes through the mounting through hole, it cooperates with the nut 320 to fix the base body 211 to the blade 100.

[0057] The first driving device is disposed on the base body 211. The first driving device can drive the feather component 230 to move relative to the blade 100. The movement of the feather component 230 relative to the blade 100 includes, but is not limited to, rotation, translation, and a combination of rotation and translation. It should be noted that the rotation axis of the feather component 230 relative to the blade 100 can be parallel or approximately parallel to the rotation plane of the wind turbine, or the rotation axis of the feather component 230 relative to the blade 100 can be perpendicular or approximately perpendicular to the rotation plane of the wind turbine. The translation of the feather component 230 relative to the blade 100 refers to the feather component 230 moving in an attitude that is basically parallel or approximately parallel to the rotation plane of the wind turbine.

[0058] The feather-shaped component 230 itself can be foldable and / or retractable, or it can be non-foldable or non-retractable. One end of the feather-shaped component 230 is connected to the drive end of the first drive device. The first drive device is used to drive the feather-shaped component 230 to reciprocate between a first position and a second position relative to the blade 100. When the feather-shaped component 230 is in the first position, at least part of the projection of the feather-shaped component 230 on the rotation plane of the wind turbine is located outside the projection of the blade 100 on the rotation plane of the wind turbine, so as to increase the windward area of ​​the blade 100. When the feather-shaped component 230 is in the second position, the projection of the feather-shaped component 230 on the rotation plane of the wind turbine is located within the projection of the blade 100 on the rotation plane of the wind turbine, so that the blade 100 does not have any additional windward area besides its own windward surface.

[0059] When the blade 100 is equipped with multiple feather-like devices 200, the blade 100 and each feather-like device 200 form a structure similar to a bird's wing. That is, the blade 100 is equivalent to a bird's wing, and the feather-like devices 200 are equivalent to a bird's feathers. By adjusting the position of the feather-like devices 200 relative to the blade 100, the overall windward area of ​​the blade 100 can be adjusted.

[0060] The control components include a controller, an environmental detection device, and a status detection device. The environmental detection device is used to detect preset environmental information, including but not limited to wind direction and wind speed. The status detection device is used to detect preset status information of the feather component 230, including but not limited to position, temperature, and vibration. The controller is used to control the working state of the first drive device based on the detection information from the environmental detection device and the status detection device.

[0061] Please see Figure 3 In one embodiment of this application, the controller and the first drive device are integrated in a control box 220 located on one side of the base body 211.

[0062] In application, the environmental detection device monitors the ambient wind speed and / or wind direction in real time. When the information obtained by the controller meets the preset deployment requirements, the controller controls the first drive device to move the feather component 230 to the first position to increase the windward area of ​​the blade 100. Of course, the first position is not a fixed position. The controller can control the specific position of the feather component 230 according to the detected information and preset instructions to adjust the windward area of ​​the blade 100 according to the environmental information. That is, when the feather component 230 is in the first position, the size of the part of the feather component 230 projected onto the rotation plane of the wind turbine that is outside the projection of the blade 100 onto the rotation plane of the wind turbine is adjustable to change the windward area of ​​the blade 100 according to the environmental information. When the information obtained by the controller meets the preset retraction requirements, the controller controls the first drive device to move the feather component 230 to the second position to minimize the windward area of ​​the blade 100 and avoid excessive wind resistance affecting equipment safety.

[0063] Compared with the prior art, the feather-shaped device 200 provided in this embodiment of the invention allows the windward area of ​​the blade 100 of the wind power generation device to change with the environment, and adjusts the effective force-bearing area of ​​the blade 100 in real time. This avoids problems such as some wind force bypassing the air flow outside the blade 100 at low wind speeds, making it difficult to drive the wind turbine to rotate, thereby reducing wind energy loss, better capturing wind energy, and effectively improving power generation efficiency.

[0064] In one specific embodiment of this application, such as Figure 3 and Figure 4 As shown, the feather-shaped component 230 is rotatably mounted on the base body 211. The first driving device includes a rotating shaft 213 and a rotary driver. The rotating shaft 213 is rotatably mounted on the base body 211, and one end of the feather-shaped component 230 is fixedly mounted on the rotating shaft 213. The rotary driver is mounted on the base body 211 and is drively connected to the rotating shaft 213. The rotary driver drives the feather-shaped component 230 to reciprocate between a first position and a second position via the rotating shaft 213. The rotary driver is communicatively connected to the controller. Furthermore, during installation, the axis of the rotating shaft 213 is parallel or approximately parallel to the rotation plane of the wind turbine. This allows the angle between the feather component 230 and the rotation plane of the wind turbine to be adjustable. In practical applications, this arrangement of the rotating shaft 213 not only makes the position of the projection of the feather component 230 on the rotation plane of the wind turbine relative to the projection of the blade 100 on the rotation plane of the wind turbine adjustable, but also allows the angle between the feather component 230 and the rotation plane of the wind turbine to be adjusted according to changes in wind direction. This enables more flexible adaptation to changes in wind direction and improves wind energy capture efficiency.

[0065] The rotary driver includes a rotary motor and a reduction mechanism. The motor shaft of the rotary motor is connected to the rotating shaft 213 through the reduction mechanism. The reduction mechanism is used to reduce speed and increase torque. The rotary motor includes, but is not limited to, a stepper motor and a servo motor.

[0066] To facilitate the installation of the feather-shaped assembly 230 and its rotation relative to the blade 100, in one embodiment of this application, such as Figure 3 and Figure 4 As shown, the base body 211 is provided with an open mounting groove 212. The open mounting groove 212 includes a bottom groove wall and side groove walls that are disposed opposite to the two sides of the bottom groove wall. The two ends of the rotating shaft 213 are respectively rotatably disposed on the two side groove walls that are disposed opposite to each other in the open mounting groove 212. The end of the feather component 230 connected to the rotating shaft 213 can be at least partially embedded in the open mounting groove 212. This facilitates the installation of the rotating shaft 213 and also allows the open mounting groove 212 to limit the feather component 230 to a certain extent and maintain its stability.

[0067] Please refer to Figure 3 and Figure 5 In one embodiment of this application, the feather-shaped component 230 adopts a telescopic structure. The feather-shaped component 230 includes a base component 231 and an end component 232. Both the base component 231 and the end component 232 are made of a lightweight material with a certain degree of elasticity, such as glass fiber. The first end of the base component 231 along the length direction of the feather-shaped component 230 is connected to the driving end of the first driving device. The length direction of the feather-shaped component 230 refers to the direction from the end connected to the first driving device to the direction away from the first driving device. The second end of the base component 231 along the length direction of the feather-shaped component 230 is connected to the end component 232 through a second driving device 2323. The second driving device 2323 is used to drive the end component 232 to reciprocate relative to the base component 231 along the length direction of the feather-shaped component 230. That is, in the above embodiment, the feather-shaped component 230 is telescopic in the length direction.

[0068] To improve the stability of the base member 231 and the end member 232 during relative movement, in one embodiment of this application, such as Figure 5 As shown, one of the base member 231 and the end member 232 is provided with a groove, and the other of the base member 231 and the end member 232 is partially slidably embedded in the groove. Through the groove of one of the base member 231 and the end member 232 and the partial sliding cooperation of the other, the base member 231 and the end member 232 can be guided and limited during relative movement, thereby improving the stability of the base member 231 and the end member 232 during relative movement, as well as the connection strength between the base member 231 and the end member 232.

[0069] Please see Figure 6The end member 232 includes a sliding connection portion 2321 and a tip portion 2322. The tip portion 2322 is detachably connected to the first end of the sliding connection portion 2321 along the length direction of the feather-shaped component 230. It should be noted that the tip portion 2322 can also be an integral structure with the sliding connection portion 2321. The second end of the sliding connection portion 2321 along the length direction of the feather-shaped component 230 is provided with a groove or is partially slidably embedded in the groove provided in the base member 231.

[0070] Specifically, in Figure 6 In the embodiment shown, the base member 231 is provided with a groove recessed in the direction of the rotating shaft 213, and the sliding connection part 2321 of the end member 232 is slidably embedded in the groove. The end of the sliding connection part 2321 extending out of the groove is connected to a tip part 2322.

[0071] like Figure 6 As shown, the second drive device 2323 is an electric push rod. Of course, the second drive device 2323 can also adopt other structures. For example, the second drive device 2323 can be a piston cylinder, such as a pneumatic cylinder or a hydraulic cylinder. It can also be composed of a rotary motor and a transmission mechanism. The transmission mechanism is used to convert the rotation output by the rotary motor into linear reciprocating movement. The transmission mechanism includes, but is not limited to, a gear and rack mechanism, a lead screw and slider mechanism, and a cam and connecting rod mechanism.

[0072] Further optimize the above technical solutions, such as Figure 5 As shown, the feather component 230 also includes an expandable component 233, which is disposed on at least one side surface of the base member 231. The expandable component 233 can expand or contract to increase or decrease the size of the feather component 230 in at least one of the width and thickness directions. The width direction of the feather component 230 is parallel to the axis of the rotating shaft 213, and the thickness direction of the feather component 230 is perpendicular to the axis of the rotating shaft 213 and the length direction of the feather component 230. By adjusting the size of the feather component 230 in the thickness and / or width directions through the expandable component 233, it can more flexibly adapt to changes in wind speed and wind direction, thereby improving wind energy capture efficiency.

[0073] Specifically, please refer to Figure 7In one embodiment of this application, the expandable component 233 includes a first expansion member 2331 and a second expansion member 2332. The first expansion member 2331 includes a first airbag 23311 and a first inflation / deflation device 23312. The first airbag 23311 is detachably disposed on at least one side surface of the base component 231 along the thickness direction of the feather component 230. The first inflation / deflation device 23312 is disposed on the base body 211 and communicates with the first airbag 23311. The first inflation / deflation device 23312 can inflate and deflate the first airbag 23311 to increase or decrease the size of the feather component 230 in the thickness direction, thereby adjusting the size of the feather component 230 in the thickness direction.

[0074] The second expansion member 2332 includes a second airbag 23321 and a second inflation / deflation device 23322. The second airbag 23321 is detachably disposed on at least one side surface of the base member 231 and / or the first airbag 23311 along the width direction of the feather-shaped component 230. The second inflation / deflation device 23322 is connected to the second airbag 23321 and can inflate and deflate the second airbag 23321, thereby realizing the adjustment of the size of the feather-shaped component 230 in the width direction.

[0075] exist Figure 7 In the embodiment shown, a second airbag 23321 is provided on both sides of the width direction of the first airbag 23311. The first airbag 23311 and the second airbag 23321 are flexible structures that wrap around the other structures of the feather-shaped component 230. They can protect the other components of the feather-shaped component 230 and the blade 100, that is, they can absorb part of the wind impact and protect the blade 100 and the feather-shaped component 230 from being damaged by mutual collision under the action of wind impact.

[0076] The structure of the expandable component 233, which consists of an airbag and an inflation / deflation device, is relatively simple and easy to maintain. By regularly inspecting and replacing vulnerable parts such as the airbag, the lifespan of the entire wind power generation device can be extended and maintenance costs reduced.

[0077] It should be noted that, in one embodiment of this application, the environmental detection device includes at least one of a wind speed sensor and a wind direction sensor, preferably including both a wind speed sensor and a wind direction sensor to simultaneously detect wind speed and wind direction. The state detection device includes at least one of a position sensor, a temperature sensor, and a vibration sensor, preferably including both a position sensor, a temperature sensor, and a vibration sensor. The position sensor may include an angle sensor and / or a displacement sensor depending on the movement mode of the feather component 230, for monitoring the current position and state of the feather component 230. That is, when the movement mode of the feather component 230 is only rotation, the position sensor should be an angle sensor; when the movement mode of the feather component 230 is only translation, the position sensor should be a displacement sensor; when the movement mode of the feather component 230 includes both translation and rotation, the position sensor includes both an angle sensor and a displacement sensor.

[0078] Temperature sensors are used to detect the temperature of the control box 220 and the feather assembly 230 to prevent overheating or underheating from damaging the equipment. Vibration sensors are used to detect the vibration of the feather assembly 230, thereby promptly identifying potential mechanical faults, facilitating maintenance, and ensuring the service life of the equipment.

[0079] One embodiment of this application also provides a wind power generation device, such as... Figures 8 to 10 As shown, the wind power generation device includes a support 500 and a wind turbine rotatably mounted on the top of the support 500. The wind turbine has multiple blades 100 evenly distributed around its circumference. Multiple feather-like devices 200 as described in the above embodiment are spaced apart on the blades 100. Since the wind power generation device uses the feather-like devices 200 in the above embodiment, the technical effect of the wind power generation device can be referred to the above embodiment.

[0080] like Figure 8 and Figure 9 As shown, the wind turbine includes a central disk 400 and multiple blades 100. Each blade 100 is evenly distributed circumferentially on the outer circumferential surface of the disk 400, forming a uniformly distributed wind capture surface to ensure full utilization of wind energy. The disk 400 is mounted on the top of the support 500 via a mounting shaft 600. A generator is installed inside the disk 400. When the blades 100 are driven by wind to rotate the wind turbine relative to the support 500, the wind energy is converted into mechanical energy, and then the generator inside the disk 400 converts the mechanical energy into electrical energy.

[0081] like Figure 8 and Figure 10As shown, in one embodiment of this application, a feather-like device 200 is provided on the first surface 110 or the second surface 120 of the blade 100. One of the first surface 110 and the second surface 120 is the windward side and the other is the leeward side. The feather-like device 200 is arranged in a row near the leading edge and the trailing edge of the surface, so that both sides of the blade 100 can be adjusted. It should be noted that the two rows of feather-like devices 200 on both sides of the blade 100 can be adjusted synchronously or independently.

[0082] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0083] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0084] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0085] This article 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 core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A feather-shaped device for use on the blades (100) of a wind turbine in a wind power generation device, characterized in that, include: Mounting base (210), the mounting base (210) includes a base body (211) and a first driving device, the base body (211) is used to mount the blade (100), and the first driving device is disposed on the base body (211). A feather-shaped component (230) includes a base member (231), an end member (232), and an expandable component (233). The base member (231) is connected to the drive end of a first driving device at a first end along the length direction of the feather-shaped component (230). The second end of the base member (231) is connected to the end member (232) via a second driving device (2323) along the length direction of the feather-shaped component (230). The second driving device (2323) is used to drive the end member (232) to reciprocate relative to the base member (231) along the length direction of the feather-shaped component (230). The expandable component (233) is disposed on at least one side surface of the base member (231). The expandable component (233) is capable of expanding or contracting to increase or decrease the size of the feather-shaped component (230) in at least one direction, including the width direction and the thickness direction. One end of the feather-shaped component (230) is connected to the driving end of the first driving device. The first driving device is used to drive the feather-shaped component (230) to reciprocate between a first position and a second position relative to the blade (100). When the feather-shaped component (230) is in the first position, at least a portion of the projection of the feather-shaped component (230) onto the rotation plane of the wind turbine is located outside the projection of the blade (100) onto the rotation plane of the wind turbine. When the feather-shaped component (230) is in the second position, the projection of the feather-shaped component (230) onto the rotation plane of the wind turbine is located within the projection of the blade (100) onto the rotation plane of the wind turbine. The control component includes a controller, an environmental detection device, and a state detection device. The environmental detection device is used to detect preset environmental information, and the state detection device is used to detect preset state information of the feather component (230). The controller is used to control the working state of the first drive device according to the detection information of the environmental detection device and the state detection device.

2. The feather-like device according to claim 1, characterized in that, The first driving device includes: A rotating shaft (213) is rotatably disposed on the base body (211), and one end of the feather-shaped component (230) is fixedly disposed on the rotating shaft (213). A rotary driver is disposed on the base body (211) and is connected to the rotating shaft (213) for transmission. The rotary driver is also connected to the controller for communication.

3. The feather-like device according to claim 2, characterized in that, The base body (211) is provided with an open mounting groove (212). The two ends of the rotating shaft (213) are rotatably disposed on the opposite sides of the open mounting groove (212). The end of the feather component (230) connected to the rotating shaft (213) can be at least partially embedded in the open mounting groove (212).

4. The feather-like device according to any one of claims 1-3, characterized in that, One of the base member (231) and the end member (232) is provided with a groove, and the other of the base member (231) and the end member (232) is partially slidably embedded in the groove.

5. The feather-like device according to claim 4, characterized in that, The end member (232) includes a sliding connection portion (2321) and a tip portion (2322). The tip portion (2322) is detachably connected to the first end of the sliding connection portion (2321) along the length direction of the feather component (230). The sliding connection portion (2321) is provided with the groove or partially slidably embedded in the groove provided in the base member (231) at the second end along the length direction of the feather component (230).

6. The feather-like device according to any one of claims 1-3, characterized in that, The expandable component (233) includes: The first expansion member (2331) includes a first airbag (23311) and a first inflation / deflation device (23312). The first airbag (23311) is detachably disposed on at least one side surface of the base member (231) along the thickness direction of the feather-shaped component (230). The first inflation / deflation device (23312) is disposed on the base body (211) and communicates with the first airbag (23311). The second expansion member (2332) includes a second airbag (23321) and a second inflation / deflation device (23322). The second airbag (23321) is detachably disposed on at least one side surface of the base member (231) and / or the first airbag (23311) along the width direction of the feather-shaped component (230). The second inflation / deflation device (23322) communicates with the second airbag (23321).

7. The feather-like device according to any one of claims 1-3, characterized in that, The environmental detection device includes at least one of a wind speed sensor and a wind direction sensor, and the state detection device includes at least one of a position sensor, a temperature sensor, and a vibration sensor.

8. A wind power generation device, the wind power generation device comprising a support (400) and a wind turbine rotatably disposed on the top of the support (400), the wind turbine having a plurality of blades (100) evenly distributed circumferentially, characterized in that, The blade (100) is provided with a plurality of feather-like devices (200) as described in any one of claims 1-7 at intervals.

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