Wind power generation device

Abstract

The utility model provides a wind power generation device which comprises a supporting column and a plurality of sets of blade assemblies, and the supporting column extends in the first direction; the multiple sets of blade assemblies are arranged on the peripheral side of the supporting column and connected with the supporting column, at least one blade assembly comprises a first connecting rod, a blade and a first driving rod, the two ends of the first connecting rod are connected with the supporting column and the blade respectively, and the extending direction of the space where the first driving rod and the first connecting rod are located is perpendicular to the first direction. The first driving rod is connected with the first connecting rod and the blade and can move relative to the first connecting rod to drive the blade to rotate around the first connecting rod. Under the condition of low wind speed, rotating force is provided through the first driving rod, so that the blades can rotate relative to the first connecting rod, wind power is generated and drives the supporting column and the multiple sets of blade assemblies to rotate, and then a motor shaft of the generator connected with the supporting column rotates to generate electric energy; the power generation efficiency under the low-wind-speed condition can be improved, and the problem that the blades cannot be driven to rotate due to insufficient wind power is solved.

Description

Technical Field

[0001] This disclosure relates to the field of power generation technology, and in particular to a wind power generation device. Background Technology

[0002] Wind power generation, as a clean and renewable energy technology, has been widely applied and developed.

[0003] Vertical axis wind power generation uses wind power to drive blades to rotate, which in turn drives a generator to produce electricity. As a result, vertical axis wind turbine blades have high power generation efficiency under high wind speed conditions, but low power generation efficiency under low wind speed conditions, or even insufficient wind power to drive the blades to rotate, resulting in vertical axis wind power generation devices being unable to meet the electricity demand in low wind speed environments. Utility Model Content

[0004] This disclosure provides a wind power generation device, the technical problem of which is to improve the power generation efficiency of the wind power generation device in low wind speed environment, so as to meet the power demand in low wind speed environment.

[0005] To address the aforementioned technical problems, this disclosure provides a wind power generation device, which may include: a support column and multiple sets of blade assemblies. The support column extends along a first direction. Multiple sets of blade assemblies are arranged around the support column and connected to the support column respectively. At least one set of blade assemblies includes: a first connecting rod, a blade, and a first drive rod. The two ends of the first connecting rod are connected to the support column and the blade respectively. The extension direction of the space where the first drive rod and the first connecting rod are located is perpendicular to the first direction. The first drive rod is connected to the first connecting rod and the blade respectively and can move relative to the first connecting rod to drive the blade to rotate around the first connecting rod.

[0006] In some embodiments, at least one set of blade assemblies further includes: a first conduit and a first sleeve; the first conduit has a first inlet and a first outlet; the internal space of the first sleeve is in communication with the first outlet; one end of a first drive rod remote from the blade extends into the first sleeve to define a first hydraulic space in the internal space of the first sleeve that is in communication with the first outlet; when liquid in the first conduit is delivered into the first hydraulic space via the first outlet, the first drive rod drives the blade to rotate around the first link; when liquid in the first hydraulic space enters the first conduit via the first outlet, the first drive rod pulls the blade to rotate around the first link.

[0007] In some embodiments, at least one set of blade assemblies further includes: a first universal joint and a second universal joint; a first connecting rod and a blade are rotatably connected via the first universal joint; and a first drive rod and a blade are rotatably connected via the second universal joint.

[0008] In some embodiments, the first link and the first drive link are parallel to each other.

[0009] In some embodiments, the first conduit extends along the side surface of the first connecting rod near the support column; at least one set of blade assemblies further includes: a fixing member disposed on the first connecting rod, partially located on one side of the length direction of the first connecting rod to connect to the first sleeve; the fixing member located on one side of the length direction of the first connecting rod has a through hole, the first outlet of the first conduit is opposite to the through hole, and the first sleeve has an opening corresponding to the position of the through hole to communicate with the internal space of the first sleeve.

[0010] In some embodiments, the blade includes a first part and a second part disposed opposite to each other, the surface of the first part facing away from the second part is opposite to the support column, and the space between the first part and the second part tends to increase first and then decrease in the circumferential direction around the support column; both the first part and the second part are made of aluminum alloy; and / or, the first connecting rod is made of aluminum alloy or nylon carbon fiber composite material.

[0011] In some embodiments, at least one set of blade assemblies further includes: a second link; the second link is distributed along a first direction and parallel to the first link, one end of the second link is connected to a support column, the other end is rotatably connected to the blade, and the rotation direction between the second link and the blade is parallel to the rotation direction between the first link and the blade.

[0012] In some embodiments, at least one set of blade assemblies further includes: a second drive rod, a second pipeline, and a second sleeve; the extension direction of the space containing the second drive rod and the second connecting rod is perpendicular to the first direction, and the second drive rod is connected to the second connecting rod and the blade respectively, and is movable relative to the second connecting rod to drive the blade to rotate around the second connecting rod; the second pipeline has a second inlet and a second outlet; the internal space of the second sleeve is in communication with the second outlet; one end of the second drive rod away from the blade extends into the second sleeve to define a second hydraulic space in the internal space of the second sleeve that is in communication with the second outlet; when liquid in the second pipeline is sent into the second hydraulic space through the second outlet, the second drive rod pushes the blade to rotate around the second connecting rod; when liquid in the second hydraulic space enters the second pipeline through the second outlet, the second drive rod pulls the blade to rotate around the second connecting rod; wherein the unit flow rate of the liquid in the first inlet and the second inlet is the same.

[0013] In some embodiments, multiple sets of blade assemblies are arranged at equal intervals around the peripheral surface of the support column, and the multiple sets of blade assemblies have the same structure.

[0014] In some embodiments, the wind power generation device may further include: a generator having a motor shaft connected to a support column, and the axial direction of the motor shaft being parallel to a first direction.

[0015] The wind power generation device provided by this disclosure, through the above technical solution, includes: a support column and multiple sets of blade assemblies surrounding the support column. At least one blade in a blade assembly is connected to the support column via a first connecting rod to support the blade. The blade is also connected to a first driving rod, which can provide rotational force to the blade relative to the first connecting rod. Thus, under low wind speed conditions, the rotational force provided to the blade by the first driving rod can cause the blade to rotate relative to the first connecting rod, thereby generating wind power and driving the support column and multiple sets of blade assemblies to rotate. This, in turn, can cause the motor shaft of the generator connected to the support column to rotate to generate electrical energy. This can improve the power generation efficiency under low wind speed conditions and solve the problem that insufficient wind power cannot drive the blade to rotate, thereby meeting the electricity demand in low wind speed environments.

[0016] The above description is only an overview of the technical solution of this disclosure. In order to better understand the technical means of this disclosure and to implement it in accordance with the contents of the specification, the preferred embodiments of this disclosure are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A partial structural diagram of the wind power generation device provided in this disclosure. Figure 1 ;

[0019] Figure 2 A partial structural diagram of the wind power generation device provided in this disclosure. Figure 2 ;

[0020] Figure 3 A partial structural diagram of the wind power generation device provided in this disclosure. Figure 3 ;

[0021] Figure 4 A schematic cross-sectional view of the blades of the wind power generation device provided in this disclosure in a direction perpendicular to the first direction.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Support column; 2. Blade assembly; 21. First connecting rod; 211. Screw; 22. Blade; 221. First part; 222. Second part; 23. First drive rod; 24. First pipeline; 241. First outlet; 242. Cable tie; 25. First sleeve; 26. First universal joint; 27. Second universal joint; 28. Fixing element; 29. ​​Second connecting rod. Detailed Implementation

[0024] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0025] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0026] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0028] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0029] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0030] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0031] Vertical axis wind power generation uses wind power to drive blades to rotate, which in turn drives a generator to produce electricity. As a result, vertical axis wind turbine blades have high power generation efficiency under high wind speed conditions, but low power generation efficiency under low wind speed conditions, or even insufficient wind power to drive the blades to rotate, resulting in vertical axis wind power generation devices being unable to meet the electricity demand in low wind speed environments.

[0032] The inventors have discovered a wind power generation device comprising: a support column 1 and multiple sets of blade assemblies 2 surrounding the support column 1. At least one blade 22 in a blade assembly 2 is connected to the support column 1 via a first connecting rod 21 to support the blade 22. The blade 22 is also connected to a first drive rod 23, which provides rotational force to the blade 22 relative to the first connecting rod 21. Thus, under low wind speed conditions, the rotational force provided by the first drive rod 23 to the blade 22 enables the blade 22 to rotate relative to the first connecting rod 21, thereby generating wind power and driving the support column 1 and the multiple sets of blade assemblies 2 to rotate. This, in turn, causes the motor shaft on the generator connected to the support column 1 to rotate, thereby generating electricity. This improves the power generation efficiency under low wind speed conditions and solves the problem of insufficient wind power to drive the blade 22 to rotate, thus meeting the electricity demand in low wind speed environments. In addition, under ultra-high wind speed conditions, the first drive rod 23 can provide rotational force to the blade 22 to reduce the rotational speed of the blade 22, thereby protecting the blade 22 and the generator and extending the service life of the wind power generation device and the generator.

[0033] This disclosure provides a wind power generation device, see [link to relevant documentation] Figures 1 to 4 As shown, the wind power generation device may include: a support column 1 and multiple sets of blade assemblies 2. The support column 1 extends along a first direction. Multiple sets of blade assemblies 2 are arranged around the support column 1 and are respectively connected to the support column 1. At least one set of blade assemblies 2 includes: a first connecting rod 21, a blade 22 and a first drive rod 23. The two ends of the first connecting rod 21 are respectively connected to the support column 1 and the blade 22. The extension direction of the space where the first drive rod 23 and the first connecting rod 21 are located is perpendicular to the first direction. The first drive rod 23 is respectively connected to the first connecting rod 21 and the blade 22 and can move relative to the first connecting rod 21 to drive the blade 22 to rotate around the first connecting rod 21.

[0034] The support column 1 can be cylindrical, polygonal, or other shapes; it can be made of materials such as aluminum or iron; it can reduce its weight by setting grooves on the outer surface or cavities inside, so as to facilitate handling; it can have telescopic and detachable functions, so that its size in the first direction can be reduced, thereby reducing the size requirements for storage and transportation.

[0035] The number of blade components 2 can be two or more, depending on the requirements. For example, in low-wind-speed environments, the number of blade components 2 is relatively small, allowing both blade components 2 and support column 1 to rotate in low-wind-speed conditions. This also reduces the manufacturing cost of the wind power generation device. (See [reference]). Figure 1As shown, there are three sets of blade assemblies 2, evenly spaced around the perimeter of the support column 1; for example, to reduce the noise generated by the blade assemblies 2, the number of blade assemblies 2 can be relatively small, see [reference]. Figure 1 As shown, there are three sets of blade assemblies 2, evenly spaced around the periphery of the support column 1. The first connecting rod 21 can be a solid or hollow rod with a circular or polygonal cross-section. It can be connected to the support column 1 by welding, screws 211, etc., and to the blade 22 by a universal joint (e.g., the first universal joint 26 below), a shaft, hinge, etc., so that the blade 22 can rotate around the first connecting rod 21. The blade 22's length direction is parallel to the first direction and has a first part 221 and a second part 222 arranged opposite to each other. The portion of the first part 221 extending along the first direction is opposite to the support column 1. The first part 221 is connected to the first connecting rod 21, and the first part 221 and the second part 222 can be symmetrically or asymmetrically arranged arc-shaped sheet structures, for example: see [link to relevant documentation]. Figure 1 , Figure 2 and Figure 4 As shown, the first portion 221 and the second portion 222 of the blade 22 respectively protrude in an arc shape away from each other, so that the distance between the first portion 221 and the second portion 222 gradually increases and then gradually decreases. The first drive rod 23 is connected to the first connecting rod 21 so that the first drive rod 23 can be supported near the blade 22, and the first drive rod 23 can move relative to the first connecting rod 21, and provide driving force during the movement to make the blade 22 rotate around the end of the first connecting rod 21 away from the support column 1.

[0036] See one example. Figures 1 to 4 As shown, the wind power generation device may include: a support column 1 and three sets of blade assemblies 2. The support column 1 extends along a first direction, and the three sets of blade assemblies 2 are arranged at equal intervals around the periphery of the support column 1 and are respectively connected to the support column 1. The three sets of blade assemblies 2 have the same structure and each includes: a first connecting rod 21, a blade 22 and a first drive rod 23. The two ends of the first connecting rod 21 are respectively connected to the support column 1 and the blade 22. The extension direction of the space where the first drive rod 23 and the first connecting rod 21 are located is perpendicular to the first direction, and the first drive rod 23 is respectively connected to the first connecting rod 21 and the blade 22, and can move relative to the first connecting rod 21 to drive the blade 22 to rotate around the first connecting rod 21.

[0037] In this embodiment, the wind power generation device includes: a support column 1 and multiple sets of blade assemblies 2 surrounding the support column 1. At least one blade 22 in the blade assembly 2 is connected to the support column 1 via a first connecting rod 21 to support the blade 22. The blade 22 is also connected to a first drive rod 23, which can provide rotational force to the blade 22 relative to the first connecting rod 21. Thus, under low wind speed conditions, the rotational force provided by the first drive rod 23 to the blade 22 can cause the blade 22 to rotate relative to the first connecting rod 21, thereby generating wind power and driving the support column 1 and the multiple sets of blade assemblies 2 to rotate. This, in turn, can cause the motor shaft on the generator connected to the support column 1 to rotate, causing the generator to generate electrical energy. In this way, the power generation efficiency under low wind speed conditions can be improved and the problem of insufficient wind power to drive the blade 22 to rotate can be solved, thus meeting the power demand in low wind speed environments. In addition, under high wind speed conditions, the first drive rod 23 can provide rotational force to the blade 22 to reduce the rotational speed of the blade 22, thereby protecting the blade 22 and extending the service life of the wind power generation device and the generator.

[0038] In some embodiments, see Figure 2 As shown, at least one set of blade assemblies 2 may further include: a first conduit 24 and a first sleeve 25; the first conduit 24 has a first inlet (not shown) and a first outlet 241; the internal space of the first sleeve 25 is in communication with the first outlet 241; one end of the first drive rod 23 away from the blade 22 extends into the first sleeve 25 to define a first hydraulic space in the internal space of the first sleeve 25 that is in communication with the first outlet 241; when liquid in the first conduit 24 is sent into the first hydraulic space through the first outlet 241, the first drive rod 23 pushes the blade 22 to rotate around the first connecting rod 21; when liquid in the first hydraulic space enters the first conduit 24 through the first outlet 241, the first drive rod 23 pulls the blade 22 to rotate around the first connecting rod 21.

[0039] In other words, external liquid can enter through the first inlet of the first pipe 24 and be sent through the first outlet 241 of the first pipe 24 into the first hydraulic space defined by the other end of the first drive rod 23, thereby increasing the size of the first hydraulic space. During this process, the liquid in the first hydraulic space gradually increases to push the first drive rod 23, which in turn causes the first drive rod 23 to push the blade 22 to rotate around the end of the first connecting rod 21 away from the support column 1; or, the liquid in the first hydraulic space can also enter through the first outlet 241. 41 flows back to the first pipe 24 to reduce the amount of liquid in the first hydraulic space and pull the first drive rod 23, thereby causing the first drive rod 23 to pull the blade 22 to rotate around the end of the first connecting rod 21 away from the support column 1; thus, when the liquid in the first pipe 24 enters the first hydraulic space and the liquid in the first hydraulic space flows back to the first pipe 24, the first drive rod 23 can be reciprocated and a reciprocating driving force can be generated. This driving force can make the blade 22 reciprocate around the end of the first connecting rod 21 away from the support column 1 to generate wind power.

[0040] The first conduit 24 can be a conduit structure made of materials such as plastic or aluminum. It can be tied to the first connecting rod 21 by cable ties 242, ropes, etc., or connected to the first connecting rod 21 by screw connection, buckle fixation, etc., or connected to the first connecting rod 21 by other means.

[0041] The first sleeve 25 can be a cylindrical structure with a recess, forming the internal space of the first sleeve 25. An opening communicating with the first outlet 241 is provided on the bottom wall corresponding to the recess. The end of the first drive rod 23 away from the blade 22 extends into the recess and abuts against an inner sidewall of the recess, thereby forming a first hydraulic space between the first drive rod 23 and the bottom wall of the recess, and communicating with the first outlet 241 through the opening in the bottom wall. Here, the first sleeve 25 can also be a prismatic structure with a recess, or other irregularly shaped structures with recesses; the opening can also be provided on the sidewall between the end of the first drive rod 23 away from the blade 22 and the bottom wall.

[0042] In this embodiment, the first hydraulic space formed by the cooperation of the first sleeve 25 and the first drive rod 23 is used to contain liquid, and the amount of liquid can be adjusted by the delivery or recovery of liquid in the first pipeline 24, so as to realize the generation of driving force of the first drive rod 23, thereby providing the driving force to the blade 22, so that the blade 22 rotates around the end of the first connecting rod 21 away from the support column 1; at the same time, the structure of the first pipeline 24 and the first sleeve 25 is simple and easy to manufacture.

[0043] In some embodiments, see Figure 2As shown, at least one set of blade assemblies 2 further includes: a first universal joint 26 and a second universal joint 27; the first connecting rod 21 and the blade 22 are rotatably connected via the first universal joint 26; the first drive rod 23 and the blade 22 are rotatably connected via the second universal joint 27. Alternatively, after the first drive rod 23 provides driving force, the blade 22 moves with the first drive rod 23 and rotates relative to the first drive rod 23, while simultaneously rotating around the end of the first connecting rod 21 away from the support column 1.

[0044] The first universal joint 26 has a first rotating part and a second rotating part that can rotate relative to each other. The first rotating part is connected to the end of the first connecting rod 21 away from the support column 1, and the second rotating part is connected to the first part 221 of the blade 22 near the support column 1.

[0045] The second universal joint 27 has a third rotating portion and a fourth rotating portion that can rotate relative to each other. The third rotating portion is connected to one end of the first drive rod 23, and the fourth rotating portion is connected to the first portion 221 of the blade 22 near the support column 1. The structure of the second universal joint 27 may be the same as or different from that of the first universal joint 26.

[0046] In this embodiment, the first connecting rod 21 and the blade 22 are rotatably connected by the first universal joint 26, and the first driving rod 23 and the blade 22 are rotatably connected by the second universal joint 27. This allows the blade 22 to move with the first driving rod 23 and rotate relative to the first driving rod 23 after the first driving rod 23 provides driving force. At the same time, the blade 22 rotates around the end of the first connecting rod 21 away from the support column 1. In this way, the restriction of the first driving rod 23 when the blade 22 rotates relative to the end of the first connecting rod 21 away from the support column 1 can be reduced, thereby increasing the rotation range of the blade 22.

[0047] In some embodiments, see Figure 2 As shown, the first connecting rod 21 and the first driving rod 23 are parallel to each other. In other words, when the first direction is vertical, so that the support column 1 extends vertically, the first connecting rod 21 and the first driving rod 23 are in the same horizontal space and are parallel to each other. Having the first connecting rod 21 and the first driving rod 23 parallel to each other provides an aesthetically pleasing parallel appearance and reduces the probability of friction between them, thus extending their service life.

[0048] Here, "parallel" can mean that the extension direction of the first link 21 is absolutely parallel to the extension direction of the first drive rod 23 or that they have an angle, and the angle is small, for example, less than 5 degrees, so that the first link 21 and the first drive rod 23 can be approximated as parallel.

[0049] In some embodiments, see Figure 2As shown, the first pipe 24 extends along the side surface of the first connecting rod 21 near the support column 1; at least one set of blade assemblies 2 further includes: a fixing member 28, disposed on the first connecting rod 21, partially located on one side of the length direction of the first connecting rod 21, to connect the first sleeve 25; the fixing member 28 located on one side of the length direction of the first connecting rod 21 has a through hole (not shown in the figure), the first outlet 241 of the first pipe 24 is opposite to the through hole, and the first sleeve 25 has an opening corresponding to the position of the through hole to communicate with the internal space of the first sleeve 25.

[0050] The fastener 28 can be a block-shaped, sheet-shaped, or other structure. The through-hole can be a straight hole with openings at both ends, or it can be a hole extending along a curve or broken line with openings at both ends, for example: see [link to documentation]. Figure 2 As shown, the first pipe 24 is tied to the side surface of the first connecting rod 21 near the support column 1 by a cable tie 242, and the first drive rod 23 is parallel to the first connecting rod 21 and has a gap, so that the first outlet 241 of the first pipe 24 is misaligned with the opening at the bottom of the first sleeve 25. Thus, the through hole can be a hole with openings at both ends that extends along a curve, so that the openings at both ends of the through hole can be opposite to the first outlet 241 and the opening, respectively.

[0051] In this embodiment, the fastener 28 allows the first drive rod 23 and the first connecting rod 21 to be arranged in parallel, and the fastener 28 has a simple structure and is easy to manufacture.

[0052] In some embodiments, see Figure 1 , Figure 2 and Figure 4 As shown, the blade 22 includes a first part 221 and a second part 222 that are arranged opposite to each other. The surface of the first part 221 facing away from the second part 222 is opposite to the support column 1, and the space between the first part 221 and the second part 222 tends to increase first and then decrease in the circumferential direction around the support column 1. Both the first part 221 and the second part 222 are made of aluminum alloy; and / or, the first connecting rod 21 is made of aluminum alloy or nylon carbon fiber composite material.

[0053] In this article, the term "and / or" is merely a description of the relationship between related objects, identifying three possible relationships, such as A and / or B. Specifically, it can be understood as: A and B can be included simultaneously, A can exist alone, or B can exist alone, and any of the above three situations can be met.

[0054] The first part 221 and the second part 222 can be arranged symmetrically or asymmetrically. When the first part 221 and the second part 222 are arranged symmetrically, the blade 22 has a symmetrical appearance. When both the first part 221 and the second part 222 are made of aluminum alloy, the blade 22 is a hollow aluminum alloy part. Since aluminum alloy is lightweight, and the hollow design makes the blade 22 even lighter, the blade assembly 2 can rotate at relatively low wind speeds, thereby reducing the workload of the first drive rod 23.

[0055] When the first connecting rod 21 is made of aluminum alloy, its light weight reduces the mass of the blade assembly 2, allowing it to rotate at relatively low wind speeds and reducing the workload of the first drive rod 23. When the first connecting rod 21 is made of nylon-carbon fiber composite material, its high structural strength enhances its structural rigidity, thereby improving support for the blade 22.

[0056] In some embodiments, see Figure 1 As shown, at least one set of blade assemblies 2 may further include: a second link 29; the second link 29 and the first link 21 are distributed along a first direction and are parallel to the first link 21, one end of the second link 29 is connected to the support column 1, and the other end is rotatably connected to the blade 22, and the rotation direction between the second link 29 and the blade 22 is parallel to the rotation direction between the first link 21 and the blade 22.

[0057] In other words, the support column 1 and the blade 22 are connected by a first link 21 and a second link 29. As the blade 22 rotates around the end of the first link 21 away from the support column 1, the blade 22 also rotates around the end of the second link 29 away from the support column 1. The second link 29 can be configured similarly to the first link 21, and will not be described in detail here.

[0058] In this embodiment, the support column 1 and the blade 22 are connected by a first connecting rod 21 and a second connecting rod 29, which can improve the connection strength between the support column 1 and the blade 22. Furthermore, due to the rotational connection between the second connecting rod 29 and the blade 22, the process of the first driving rod 23 driving the blade 22 to rotate is not affected.

[0059] In some embodiments, at least one set of blade assemblies 2 further includes: a second drive rod (not shown in the figure), a second pipeline (not shown in the figure), and a second sleeve (not shown in the figure); the extension direction of the space where the second drive rod and the second connecting rod 29 are located is perpendicular to the first direction, and the second drive rod is connected to the second connecting rod 29 and the blade 22 respectively, and is movable relative to the second connecting rod 29 to drive the blade 22 to rotate around the second connecting rod 29; the second pipeline has a second inlet and a second outlet; the internal space of the second sleeve is in communication with the second outlet; one end of the second drive rod away from the blade 22 extends into the second sleeve to define a second hydraulic space in the internal space of the second sleeve that is in communication with the second outlet; when the liquid in the second pipeline is sent into the second hydraulic space through the second outlet, the second drive rod pushes the blade 22 to rotate around the second connecting rod 29; when the liquid in the second hydraulic space enters the second pipeline through the second outlet, the second drive rod pulls the blade 22 to rotate around the second connecting rod 29; wherein the unit flow rate of the liquid in the first inlet and the second inlet is the same.

[0060] In other words, while the first drive rod 23 drives the blade 22 to rotate around the first connecting rod 21, the second drive rod can drive the blade 22 to rotate around the second connecting rod 29. This allows the first drive rod 23 and the second drive rod to provide driving force to different positions on the blade 22, thereby driving the blade 22 to rotate. This results in smoother rotation of the blade 22 and extends the service life of the first drive rod 23 and the structures that generate the driving force (such as the first pipe 24 and the first sleeve 25). The second drive rod can be configured similarly to the first drive rod 23, the second pipe similarly to the first pipe 24, and the second sleeve similarly to the first sleeve 25; further details are omitted here.

[0061] In some embodiments, multiple sets of blade assemblies 2 are arranged at equal intervals around the circumferential surface of the support column 1, and the multiple sets of blade assemblies 2 have identical structures. For example: see Figure 1 As shown, three sets of blade assemblies 2 are arranged at equal intervals around the circumferential surface of the support column 1, and the three sets of blade assemblies 2 have the same structure.

[0062] In this embodiment, multiple sets of blade assemblies 2 are arranged at equal intervals around the periphery of the support column 1, which makes the wind power generation device visually appealing. The multiple sets of blade assemblies 2 have the same structure, which allows the blade assemblies 2 to be manufactured using the same setup, thereby reducing the manufacturing cost of the wind power generation device.

[0063] In some embodiments, the wind power generation device may further include a generator having a motor shaft connected to a support column 1, and the axial direction of the motor shaft being parallel to a first direction. Thus, when the blades 22 rotate to rotate the support column 1, the motor shaft rotates along with the support column 1, thereby enabling the generator to produce electrical energy. Here, the motor shaft may be connected to the support column 1 by welding or other means.

[0064] Of course, the generator can also be an external device independent of the wind power generation device. When wind power generation is required, it can be connected to the support column 1 to switch the generator between different wind power generation devices, thereby reducing the cost of power generation.

[0065] See one example. Figures 1 to 4 As shown, a wind power generation device may include:

[0066] Support column 1 extends along a first direction;

[0067] Three sets of blade assemblies 2 are arranged at equal intervals around the circumferential surface of the support column 1, and the three sets of blade assemblies 2 have identical structures. Each set of blade assemblies 2 may include: a first connecting rod 21, a blade 22, a first drive rod 23, a first pipe 24, a first sleeve 25, a first universal joint 26, a second universal joint 27, a fixing member 28, a second connecting rod 29, a second drive rod, and a second sleeve; wherein, one end of the first connecting rod 21 is connected to the support column 1 by a screw 211; the blade 22 includes a first part 221 and a second part 222 arranged opposite to each other, the surface of the first part 221 facing away from the second part 222 is opposite to the support column 1, and the space between the first part 221 and the second part 222 has a tendency to first increase and then decrease in the circumferential direction around the support column 1, with the first part 221 being further away from the second part 222. The surface of 22 is rotatably connected to the other end of the first connecting rod 21 via the first universal joint 26; the extension direction of the space where the first drive rod 23 and the first connecting rod 21 are located is perpendicular to the first direction, and the first drive rod 23 and the first connecting rod 21 are parallel to each other. The first drive rod 23 and the blade 22 are rotatably connected via the second universal joint 27; the first pipe 24 is tied to the side surface of the first connecting rod 21 near the support column 1 by a cable tie 242, and has a first inlet and a first outlet 241; the first sleeve 25 is located on one side of the length direction of the first connecting rod 21 and is parallel to the first connecting rod 21. The first sleeve 25 has an opening that communicates with the internal space of the first sleeve 25. The first drive rod 23 is away from the blade 22. One end of the blade 22 extends into the first sleeve 25 to define a first hydraulic space communicating with the first outlet 241 within the internal space of the first sleeve 25; a fixing member 28 is disposed on the first connecting rod 21, partially located on one side of the length direction of the first connecting rod 21 to connect to the first sleeve 25; the fixing member 28 located on one side of the length direction of the first connecting rod 21 has a through hole, which is opposite to the first outlet 241 and the opening, so that the first outlet 241 communicates with the internal space of the first sleeve 25; a second connecting rod 29 is distributed along the first connecting rod 21 in a first direction and is parallel to the first connecting rod 21; one end of the second connecting rod 29 is connected to the support column 1, and the other end is rotatably connected to the blade 22, and the second connecting rod 29 is rotatably connected to the support column 1. The rotation direction between rod 29 and blade 22 is parallel to the rotation direction between first connecting rod 21 and blade 22; the extension direction of the space where the second drive rod and the second connecting rod 29 are located is perpendicular to the first direction, and the second drive rod is connected to the second connecting rod 29 and blade 22 respectively, and can move relative to the second connecting rod 29 to drive blade 22 to rotate around the second connecting rod 29; the second pipeline has a second inlet and a second outlet; the internal space of the second sleeve is connected to the second outlet; the end of the second drive rod away from blade 22 extends into the second sleeve to define a second hydraulic space connected to the second outlet in the internal space of the second sleeve; wherein, the unit flow rate of the liquid in the first inlet and the second inlet is the same.

[0068] Here, the second connecting rod 29 has the same structure as the first connecting rod 21, the second sleeve has the same structure as the first sleeve 25, and the second drive rod has the same structure as the first drive rod 23. That is to say, a blade 22 is connected to the support column 1 through two sets of connecting structures. One set of connecting structures includes: the first connecting rod 21, the first drive rod 23, the first pipe 24, the first sleeve 25, the first universal joint 26, the second universal joint 27, and the fixing member 28; the other set of connecting structures includes: the second connecting rod 29, the second drive rod, and the second sleeve; and the two sets of connecting structures are distributed along the first direction and have the same structure.

[0069] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0070] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A wind power generation device, characterized in that, include: Support column (1) extends along a first direction; Multiple sets of blade assemblies (2) are arranged around the support column (1) and connected to the support column (1) respectively. At least one set of blade assemblies (2) includes: a first connecting rod (21), a blade (22) and a first driving rod (23). The two ends of the first connecting rod (21) are connected to the support column (1) and the blade (22) respectively. The extension direction of the space where the first driving rod (23) and the first connecting rod (21) are located is perpendicular to the first direction. The first driving rod (23) is connected to the first connecting rod (21) and the blade (22) respectively, and can move relative to the first connecting rod (21) to drive the blade (22) to rotate around the first connecting rod (21).

2. The wind power generation device according to claim 1, characterized in that, At least one set of the blade assembly (2) further includes: a first conduit (24) and a first sleeve (25); The first pipeline (24) has a first inlet and a first outlet (241); The internal space of the first sleeve (25) is connected to the first outlet (241); The end of the first drive rod (23) away from the blade (22) extends into the first sleeve (25) to define a first hydraulic space communicating with the first outlet (241) in the internal space of the first sleeve (25); when the liquid in the first pipeline (24) is sent into the first hydraulic space through the first outlet (241), the first drive rod (23) pushes the blade (22) to rotate around the first connecting rod (21); when the liquid in the first hydraulic space enters the first pipeline (24) through the first outlet (241), the first drive rod (23) pulls the blade (22) to rotate around the first connecting rod (21).

3. The wind power generation device according to claim 2, characterized in that, At least one set of the blade assembly (2) further includes: a first universal joint (26) and a second universal joint (27); The first connecting rod (21) and the blade (22) are rotatably connected by the first universal joint (26); The first drive rod (23) and the blade (22) are rotatably connected by the second universal joint (27).

4. The wind power generation device according to claim 2, characterized in that, The first connecting rod (21) and the first driving rod (23) are parallel to each other.

5. The wind power generation device according to claim 4, characterized in that, The first conduit (24) extends along the side surface of the first connecting rod (21) near the end of the support column (1); At least one set of the blade assembly (2) further includes: a fixing member (28) disposed on the first connecting rod (21), partially located on one side of the length direction of the first connecting rod (21) to connect the first sleeve (25); A through hole is provided on the fixing member (28) located on one side of the length direction of the first connecting rod (21), the first outlet (241) of the first pipeline (24) is opposite to the through hole, and the first sleeve (25) is provided with an opening corresponding to the position of the through hole to communicate with the internal space of the first sleeve (25).

6. The wind power generation device according to claim 2, characterized in that, The blade (22) includes a first part (221) and a second part (222) disposed opposite to each other. A portion of the first part (221) facing away from the second part (222) is opposite to the support column (1). The space between the first part (221) and the second part (222) initially increases and then decreases in the circumferential direction around the support column (1). Both the first part (221) and the second part (222) are made of aluminum alloy. And / or, The first connecting rod (21) is made of aluminum alloy or nylon carbon fiber composite material.

7. The wind power generation device according to any one of claims 2 to 6, characterized in that, At least one set of the blade assembly (2) further includes: a second connecting rod (29); The second connecting rod (29) is distributed along the first connecting rod (21) in the first direction and is parallel to the first connecting rod (21). One end of the second connecting rod (29) is connected to the support column (1), and the other end is rotatably connected to the blade (22). The rotation direction between the second connecting rod (29) and the blade (22) is parallel to the rotation direction between the first connecting rod (21) and the blade (22).

8. The wind power generation device according to claim 7, characterized in that, At least one set of the blade assembly (2) further includes: a second drive rod, a second pipeline, and a second sleeve; The extension direction of the space where the second drive rod and the second connecting rod (29) are located is perpendicular to the first direction, and the second drive rod is connected to the second connecting rod (29) and the blade (22) respectively, and can move relative to the second connecting rod (29) to drive the blade (22) to rotate around the second connecting rod (29); The second pipeline has a second inlet and a second outlet; The internal space of the second sleeve is connected to the second outlet; The end of the second drive rod away from the blade (22) extends into the second sleeve to define a second hydraulic space communicating with the second outlet in the internal space of the second sleeve; when the liquid in the second pipeline is sent into the second hydraulic space through the second outlet, the second drive rod pushes the blade (22) to rotate around the second connecting rod (29); when the liquid in the second hydraulic space enters the second pipeline through the second outlet, the second drive rod pulls the blade (22) to rotate around the second connecting rod (29); The unit flow rate of the liquid at the first inlet and the second inlet is the same.

9. The wind power generation device according to claim 1, characterized in that, Multiple sets of blade assemblies (2) are arranged in a circle around the peripheral surface of the support column (1) at equal intervals, and the multiple sets of blade assemblies (2) have the same structure.

10. The wind power generation device according to claim 1, characterized in that, Also includes: The generator has a motor shaft connected to the support column (1), and the axial direction of the motor shaft is parallel to the first direction.

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