Sail wind turbine

Abstract

The present invention relates to the technical field of wind power generation apparatuses, and provides a sail wind turbine, comprising a tower barrel, a rotating nacelle, sail booms, masts and sails, wherein the rotating nacelle is arranged at the top of the tower barrel and is rotatably connected to the tower barrel; m sail booms are provided and are evenly arranged around the rotating center line of the rotating nacelle, first ends of the sail booms are fixedly connected to the rotating nacelle, and second ends of the sail booms extend a direction away from the rotating center line of the rotating nacelle; the masts are in one-to-one correspondence with the sail booms, the number of the masts is equal to the number of the sail booms, first ends of the masts are fixedly connected to the second ends of the sail booms, and second ends of the masts extend in a longitudinal direction; and the sails are in one-to-one correspondence with the masts, the number of the sails is equal to the number of the masts, and the sails are arranged on the masts. The sail wind turbine provided in the present invention has a simple structure, reasonable design, high generation power, and low manufacturing, transportation and mounting costs.

Description

A sail-shaped wind turbine Technical Field

[0001] The present invention relates to the technical field of wind power generation equipment, and in particular to a sail-shaped wind power generator. Background Art

[0002] Currently, mainstream wind turbines typically use horizontal-axis blades. To increase power generation, blade length is often increased. However, when blade lengths reach approximately 130 meters, manufacturing technology reaches a bottleneck. These long blades are extremely difficult to transport and install, resulting in high manufacturing, transportation, and installation costs.

[0003] Summary of the Invention

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a sail-shaped wind turbine to increase power generation and reduce costs.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a sail-shaped wind turbine, comprising: a tower; a rotating cabin, which is arranged at the top of the tower and is rotatably connected to the tower; m sail arms, which are provided, and the m sail arms are evenly arranged around the rotation center line of the rotating cabin, the first end of the sail arm is fixedly connected to the rotating cabin, and the second end extends in a direction away from the rotation center line of the rotating cabin; a mast, which corresponds one-to-one to the sail arms, the first end of which is fixedly connected to the second end of the sail arm, and the second end extends longitudinally; and a sail, which corresponds one-to-one to the mast and is arranged on the mast.

[0006] Furthermore, the first end of the sail is connected to the mast, and the second end can make reciprocating linear motion along the length direction of the mast; it also includes a sail lifting component corresponding to each of the sails, and the sail lifting component is used to drive the second end of the sail to make reciprocating linear motion.

[0007] Furthermore, the sail lifting assembly includes: a sail lifting drum, which is arranged on the mast and is rotatably connected to the mast; a sail lifting traction rope, a first end of which is connected to the second end of the sail, and the second end passes around the guide wheel group arranged on the mast and extends into the mast and is connected to the sail lifting drum; and a sail lifting motor, which is fixedly arranged on the mast and is used to drive the sail lifting drum to rotate.

[0008] Furthermore, the sail can reciprocate around the axis of the mast within a preset angle α, and further includes a sail deflection assembly corresponding to each of the sails, wherein the sail deflection assembly is used to change the deflection angle of the sail.

[0009] Furthermore, the sail deflection assembly includes: a sail deflection drum, which is rotatably arranged on the mast adjacent to the sail whose deflection angle is to be adjusted; a sail deflection motor, which is arranged on the mast and is used to drive the sail deflection drum to rotate; a sail deflection traction rope, a first end of which is wound on the sail deflection drum and fixedly connected to the sail deflection drum, and a second end of which is fixedly connected to one side of the sail whose deflection angle is to be adjusted.

[0010] Furthermore, the sail comprises: a hull; a plurality of first support poles arranged on the hull at longitudinal intervals and extending in a transverse direction, having opposite first and second ends; a second support pole arranged on the hull and located above the plurality of first support poles, extending in a transverse or oblique direction; and a plurality of guide rings, one being provided on each of the first support poles and the second support pole, and being sleeved outside the mast, wherein the distance between the guide ring and the first end of the first support pole is greater than the distance between the guide ring and the second end.

[0011] The sail deflection assembly includes: a plurality of deflection rods, which are arranged in a one-to-one correspondence with the first support rods, extending laterally, one end of which is hinged to the first support rod, and the hinge point is located between the mast and the first end of the first support rod, and the length of the deflection rod is greater than the distance between the hinge point and the first end of the first support rod; a plurality of first traction ropes, which are arranged in a one-to-one correspondence with the deflection rods, one end of which is connected to the other end of the deflection rod; and a retraction mechanism, which is arranged on the adjacent mast and is used to retract or release the other end of the first traction rope.

[0012] Furthermore, the sail deflection assembly also includes a plurality of second traction ropes, which are arranged in a one-to-one correspondence with the deflection rod, one end of the second traction rope is connected to the other end of the deflection rod, and the other end is connected to the first support rod or the second support rod located above the deflection rod.

[0013] Furthermore, the other ends of the plurality of first traction ropes are connected together.

[0014] Furthermore, the retractable mechanism includes a telescopic rod arranged on the mast.

[0015] Furthermore, the number m of the sail arms is one of 3, 4, 6 or 8.

[0016] Beneficial effects of the present invention:

[0017] 1. The sail-shaped wind turbine provided by the present invention has a simple structure and a reasonable design. In addition, since the tower, rotating cabin, sail boom, mast and sail are easy to manufacture, transport and install, the manufacturing, transportation and installation costs are low.

[0018] 2. The sail-shaped wind turbine provided by the present invention, by installing a deflection rod to ensure a large maximum deflection angle, eliminates the need for real-time control of the length of the first traction cable. That is, once the maximum deflection angle is determined, the length of the first traction cable does not need to be adjusted during each rotation, thereby reducing production and maintenance costs. Furthermore, even if the retraction and extension mechanism in the sail deflection device malfunctions and becomes inoperative, it will at most affect the adjustment of the sail's maximum deflection angle but will not affect the operation of the wind turbine, thereby improving reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0020] FIG1 is a perspective structural view of a sail-shaped wind turbine according to an embodiment of the present invention;

[0021] FIG2 is an enlarged view of point A shown in FIG1 ;

[0022] FIG3 is an enlarged view of point B shown in FIG1 ;

[0023] FIG4 is a partial cross-sectional view of point A shown in FIG1 ;

[0024] 5 to 8 are working principle diagrams of a sail-shaped wind turbine according to an embodiment of the present invention in various working states;

[0025] FIG9 is a perspective structural view of a sail-shaped wind turbine according to another embodiment of the present invention;

[0026] FIG10 is an enlarged view of portion C in FIG9 , in which part of the structure in FIG9 is hidden;

[0027] FIG11 is an enlarged view of a portion of the structure of FIG9 ;

[0028] FIG12 is a working principle diagram of a sail-shaped wind turbine in a working state provided by an embodiment of the present invention;

[0029] FIG13 is a working principle diagram of a sail-shaped wind turbine in a working state according to another embodiment of the present invention;

[0030] FIG14 is a diagram showing the working principle of the sail-configured wind turbine in FIG12 when the maximum deflection angle is 100°;

[0031] Figure numerals: 10, tower; 11, rotating cabin; 12, sail boom; 13, mast; 14, sail; 141, sail surface; 142, sail main frame; 143, sail lifting frame; 144, sail secondary frame; 21, sail lifting traction rope; 22, first guide wheel; 23, second guide wheel; 24, mounting frame; 25, third guide wheel; 31, main traction rope; 32, secondary traction rope; 331, sail body; 332, first support rod; 333, second support rod; 334, guide ring; 34, sail deflection device; 341, deflection rod; 342, first traction rope; 343, second traction rope; 3441, telescopic rod; 41, wind force sensor; 42, wind direction sensor; 43, lightning induction device; 44, discharge brush. DETAILED DESCRIPTION

[0032] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0033] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0034] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present invention, "plurality" means more than two, unless otherwise specifically defined.

[0036] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0037] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0038] As shown in Figures 1-4 and 9-11, this embodiment provides a sail-shaped wind turbine, including a tower 10, a rotating cabin 11, a sail boom 12, a mast 13 and a sail 14.

[0039] Tower 10 houses a speed-increasing nacelle, a generator nacelle housing a generator, and a transformer nacelle housing a transformer. The speed-increasing nacelle houses a speed-increasing device, preferably a gear speed-increasing device. The generator nacelle houses a generator, whose power input is transmission-connected to the power output of the speed-increasing device. The transformer nacelle houses a transformer, which is electrically connected to the generator.

[0040] The rotating cabin 11 is arranged at the top of the tower 10 and is rotationally connected to the tower 10. The power output end of the rotating cabin 11 is transmission-connected to the power input end of the gear speed increasing device. There are m sail booms 12, where m is a positive integer greater than or equal to 3. The m sail booms 12 are evenly arranged around the rotation center line of the rotating cabin 11. The first end of the sail boom 12 is fixedly connected to the rotating cabin 11, and the second end extends in a direction away from the rotation center line of the rotating cabin 11. The mast 13 corresponds one-to-one to the sail boom 12. Therefore, the number of masts 13 and sail booms 12 is equal. The first end of the mast 13 is fixedly connected to the second end of the sail boom 12, and the second end extends freely in the longitudinal direction. In this embodiment, the second end of the mast 13 extends freely upward in the longitudinal direction. Preferably, the mast 13 includes a multi-section rod body fixedly connected in sequence, so as to achieve the purpose of easy installation and transportation.

[0041] The sails 14 correspond to the masts 13 one by one, and therefore, the number of the sails 14 and the masts 13 is equal. The sails 14 are arranged on the masts 13 and are used to convert wind power into the power for rotating the rotating cabin 11. Specifically, the sails 14 can be either hard sails or soft sails, which will not be described in detail here.

[0042] In this embodiment, the sail 14 is a soft sail, comprising a sail surface 141 made of canvas or polymer material and a sail frame. Specifically, the sail frame comprises a main sail frame 142, a sail lifting frame 143, and a plurality of auxiliary sail frames 144. The main sail frame 142 is rotatably connected to the mast 13, meaning that the main sail frame 142 can only rotate about the axis of the mast 13 and cannot move along the length of the mast 13. As shown in FIG1 , the main sail frame 142 may be located at the bottom. The auxiliary sail frames 144 and the sail lifting frame 143 are movably connected to the mast 13, meaning that the auxiliary sail frames 144 and the sail lifting frame 143 can both rotate about the axis of the mast 13 and move along the length of the mast 13. As shown in the figures, a sail lifting frame 143 is located at the top of the sail. Multiple sail sub-frames 144 are provided, and these sub-frames 144 are located between the main sail frame 142 and the sail lifting frame 143. In this embodiment, the main sail frame 142 is pivotally connected to the first end (i.e., the lower end) of the mast 13. This means that the main sail frame 142 can only rotate about the axis of the mast 13 and cannot move along the length of the mast 13. The sail lifting frame 143 and the sub-frames 144 are movably connected to the mast 13. This means that they can both rotate about the axis of the mast 13 and move along the length of the mast 13. Specifically, the cross-section of the sail is flat, arc-shaped, or U-shaped.

[0043] When in use, wind acts on the sail 14, thereby driving the rotating cabin 11 to rotate through the sail. Under the action of the speed increasing device, the rotating cabin 11 is accelerated and drives the generator to rotate, thereby achieving the purpose of power generation.

[0044] The sail-shaped wind turbine of this structure has a simple structure and a reasonable design. In addition, since the tower 10, the rotating cabin 11, the sail boom 12, the mast 13 and the sail are easy to manufacture, transport and install, the cost is low.

[0045] In one embodiment, a sail lifting assembly corresponding to each sail 14 is further included. The first end of each sail 14 is connected to the mast 13, and the second end of each sail 14 is capable of reciprocating linear motion between a first operating position and a second operating position along the length of the mast 13. In this embodiment, the first end (i.e., the lower end) of the sail 14 is connected to the first end (i.e., the lower end) of the mast 13. Specifically, a sail main frame 142 is rotatably connected to the first end (i.e., the lower end) of the mast 13, and a sail lifting frame 143 is connected to the sail lifting assembly.

[0046] The sail lifting assembly is mounted on the mast 13. The power output of the sail lifting assembly is connected to the second end (i.e., the upper end) of the sail 14. Specifically, the power output of the sail lifting assembly is connected to the sail lifting frame 143. The sail lifting assembly is used to drive the second end (i.e., the upper end) of the sail 14 to perform reciprocating linear motion between a first operating position and a second operating position, specifically, to perform lifting motion.

[0047] By setting up the sail lifting assembly, not only can the size of the windward surface of the sail 14 be changed by raising and lowering the sail to adjust the power generation power, but also in severe weather such as typhoons, the sail can be folded to prevent damage to the sail.

[0048] In one embodiment, the sail lifting assembly includes a sail lifting drum, a sail lifting traction line 21 and a sail lifting motor.

[0049] A sail hoist drum (not shown) is mounted on and rotatably connected to the mast 13, which is a hollow tubular structure. A sail hoist cable 21 has a first end fixedly connected to the second (i.e., upper) end of the sail 14. Its second end passes over a guide wheel assembly mounted on the mast 13, extends into the mast 13, and connects to the sail hoist drum. The sail hoist drum can be mounted inside the mast 13 or on the outer wall of the mast 13. In this embodiment, the guide wheel assembly is mounted on the second (i.e., upper) end of the mast 13 and includes a first guide wheel 22 and a second guide wheel 23. A mounting bracket 24 is mounted on the second (i.e., upper) end of the mast 13. The first end of the mounting bracket 24 is rotatably connected to the mast 13 and can rotate about the axis of the mast 13. The second end of the mounting bracket 24 extends radially away from the axis of the mast 13. The first guide wheel 22 is mounted on the second end of the mounting bracket 24. The second guide wheel 23 is disposed inside the mast 13 and is rotatably connected to the mast 13 .

[0050] Preferably, a third guide wheel 25 is provided at the second end of the sail 14. Specifically, the third guide wheel 25 is mounted on and rotationally connected to the sail hoist frame 143. The first end of the sail hoist cable 21 passes over the third guide wheel 25 and is fixedly connected to the mounting frame 24. This allows the third guide wheel 25 to function as a movable pulley, saving effort.

[0051] A sail lift motor (not shown) is fixedly mounted on the mast 13. The power output shaft of the sail lift motor is in driving connection with the power input shaft of the sail lift drum. The sail lift motor can be mounted inside the mast 13 or on the outer wall of the mast 13. The sail lift motor is used to drive the sail lift drum to rotate, thereby reeling in the sail lift traction cable 21, thereby driving the second end of the sail to rise and fall.

[0052] Specifically, each sail 14 is eccentrically mounted and hung on the mast 13 through a main sail frame 142 , a sail lifting frame 143 , a secondary sail frame 144 , etc. The sail hung on the mast 13 can realize both the raising and lowering of the sail and the deflection of the sail 14 .

[0053] The first end of the sail lifting traction rope 21 is fixedly connected to the second end of the sail, and the second end of the sail lifting traction rope 21 is wrapped around the sail lifting drum after passing through the pulley set at the second end of the mast 13 and is fixedly connected to the sail lifting drum.

[0054] When in use, the sail lifting motor drives the sail lifting drum to reel in or release the sail lifting traction rope 21, thereby driving the second end of the sail to rise and fall, thereby achieving the purpose of folding the sail or changing the size of the windward surface of the sail.

[0055] The sail lifting component of this structure has a simple structure, a reasonable design and is easy to operate.

[0056] In one embodiment, a sail deflection assembly is further included, corresponding to each sail 14. The sail is rotatably connected to the mast 13. Specifically, a main sail frame 142 is rotatably connected to the mast 13, meaning it can only rotate about the axis of the mast 13 and cannot move along its length. A sail lifting frame 143 and a secondary sail frame 144 are movably connected to the mast 13, meaning they can both rotate about the axis of the mast 13 and move along its length. The sail can reciprocate around the axis of the mast 13 within a preset angle α, where α is ≤ 90°, and preferably α = 90°. The sail deflection assembly is used to change the deflection angle of the sail 14.

[0057] When in use, the sail deflection assembly can be used to adjust the direction of the windward side of the sail according to the direction of the wind, thereby achieving the purpose of adjusting the power generation power. At the same time, the sail deflection angle can be adjusted by the sail deflection assembly during the rotation process, so that the wind force difference received by the sails on both sides of the rotating cabin 11 is maximized. For example, the windward side of the sail on the first side of the rotating cabin 11 is always perpendicular to the wind direction, while the windward side of the sail on the second side of the rotating cabin 11 is always parallel to the wind direction, thereby achieving the purpose of further utilizing wind force to adjust the power generation power.

[0058] In one embodiment, the sail 14 is eccentrically positioned on the mast 13, i.e., the sail is narrower on one side of the mast 13 and wider on the other side. This creates an uneven wind force on both sides of the sail, thereby facilitating adjustment of the deflection angle of the sail 14. Preferably, the eccentric position of the sail is within one-third of the sail's length, i.e., in the crosswind direction (i.e., the width of the sail), the ratio of the distance between one end of the sail and the mast 13 to the width of the sail is less than or equal to one-third.

[0059] The sail deflection assembly includes a sail deflection drum, a sail deflection motor and a sail deflection traction rope.

[0060] The sail deflection drum (not shown) is rotatably mounted on a target mast 13 (i.e., the mast 13 to which the sail deflection drum is mounted), that is, rotatably mounted on a mast 13 adjacent to a target sail (i.e., the sail whose deflection angle the sail deflection assembly is to adjust). The target mast 13 is adjacent to the target sail and is located on the side of the mast 13 that is at a greater distance from the target sail.

[0061] A sail deflection motor (not shown) is mounted on the target mast 13. A power output shaft of the sail deflection motor is in driving connection with a power input shaft of a sail deflection drum. The sail deflection motor is used to drive the sail deflection drum to rotate, thereby reeling in or releasing a sail deflection traction cable. The first end of the sail deflection traction cable is reeled in and fixedly connected to the sail deflection drum, while the second end is fixedly connected to the side of the mast 13 that is farther from the target sail. Specifically, the second end of the sail deflection traction cable is fixedly connected to the side of the mast 13 that is farther from the target sail. Furthermore, because the sail deflection cable is mounted on the mast 13, one end of the sail is farther from the corresponding mast 13 than the other end. The second end of the sail deflection traction cable is fixedly connected to the end farther from the mast 13 than the other end.

[0062] When in use, the sail deflection motor drives the sail deflection drum to reel in or release the sail deflection traction rope to increase or decrease the length of the sail deflection traction rope, thereby driving the sail to rotate through the sail deflection traction rope to adjust the deflection angle of the sail, and further adjust the direction of the windward side of the sail.

[0063] The sail deflection component of this structure has a simple structure, a reasonable design and is easy to operate.

[0064] The working principle of this embodiment is as follows:

[0065] As shown in Figures 5-8, Figure 5 shows the initial position. At this point, the windward surfaces of sails III and IV are facing the wind (i.e., the wind force acting on the sails is minimal), while the windward surfaces of sails I and II are perpendicular to the wind direction (i.e., the wind force acting on the sails is maximum). Simultaneously, the sail deflection assembly is tightened via the main traction cable 31 and the auxiliary traction cable 32. Under the influence of wind, the wind force acting on sails I and II is greater than that acting on sails III and IV, thereby achieving the purpose of driving the rotating cabin 11 to rotate through the sails, thereby achieving the purpose of converting wind force into the power to drive the rotating cabin 11 to rotate.

[0066] When it rotates to the position shown in FIG6 , the wind force received by the sails I and IV located on the first side of the rotating cabin 11 is greater than the wind force received by the sails II and III located on the second side of the rotating cabin 11, thereby achieving the purpose of driving the rotating cabin 11 to rotate through the sails, and further achieving the purpose of converting the wind force into power to drive the rotating cabin 11 to rotate.

[0067] When it rotates to the position shown in Figure 7, the windward sides of sails I, II and III are facing the wind, and the windward side of sail IV is perpendicular to the wind direction. The wind force received by sail IV located on the first side of the rotating cabin 11 is greater than the wind force received by sails I, II and III located on the second side of the rotating cabin 11, thereby achieving the purpose of driving the rotating cabin 11 to rotate through the sails, and further achieving the purpose of converting wind force into power to drive the rotating cabin 11 to rotate.

[0068] When it rotates to the position shown in Figure 8, sail I resumes its windward position. At the same time, the wind force exerted on sails I and II on the first side of the rotating cabin 11 is greater than the wind force exerted on sails III and IV on the second side of the rotating cabin 11. This achieves the goal of driving the rotating cabin 11 through the sails, thereby converting wind force into power to drive the rotating cabin 11.

[0069] This sail-shaped wind turbine has an effective wind force range exceeding 180° when its sail rotates in a circular motion. By eccentrically positioning the sail and incorporating a sail deflection assembly to control the sail's deflection angle, it can utilize winds from any direction to drive the generator. This wind turbine allows the sail to swing freely in any wind direction without generating significant resistance. Furthermore, it allows for larger, lower-noise, and higher-efficiency sail-shaped wind turbines, resulting in excellent commercial viability.

[0070] In one embodiment, the sail deflection traction rope includes a main traction rope 31 and an auxiliary traction rope 32. The first end of the main traction rope 31 is connected to the sail deflection drum, and the second end is freely extending. The number of auxiliary traction ropes 32 is n, where n ≥ 2. The first ends of the n auxiliary traction ropes 32 are spaced along the length of the target sail and fixedly connected to the side of the mast 13 with a greater distance from the target sail, and the second ends of the n auxiliary traction ropes 32 are fixedly connected to the main traction rope 31. By providing the auxiliary traction ropes 32, the stability of adjusting the deflection angle of the sail is improved. Preferably, the number of auxiliary traction ropes 32 is equal to the number of sail frames, and they correspond one to one. In this embodiment, n = 6.

[0071] In one embodiment, the system further includes a wind sensor 41 and a wind direction sensor 42. The wind sensor 41 is mounted on the rotating cabin 11 and is used to detect wind strength. The wind direction sensor 42 is mounted on the rotating cabin 11 and is used to detect wind direction. During operation, the wind sensor 41 and wind direction sensor 42 detect wind strength and direction, thereby enabling computer-controlled adjustment of the sail's lift height and sail deflection angle via the sail lift and deflection assemblies. This, in turn, controls the sail's windward area, thereby controlling the wind turbine's speed and output power.

[0072] In one embodiment, a lightning attractor 43 and a discharge brush 44 are further included. The lightning attractor 43 is located at the upper end of the mast 13, while the discharge brush 44 is located at the lower end of the mast 13. By providing the lightning attractor 43 and the discharge brush 44, the purpose of attracting lightning and discharging lightning is achieved, thereby preventing lightning damage to the sail.

[0073] In one embodiment, as shown in Figures 9-11, the sail 14 includes a hull 331, a first support rod 332, a second support rod 333, and a guide ring 334. The hull 331 can be made of a polymer fiber material such as nylon, polyester, carbon fiber, or aramid. The hull 331 can be made from a single piece of fabric or from multiple pieces of fabric. The shape of the hull 331 can be regular or irregular. A regular shape can be a rectangle, while an irregular shape can be derived from a rectangle, such as by converting one side of a rectangle into multiple sides. A plurality of first support rods 332 are provided. The plurality of first support rods 332 are fixedly disposed on the hull 331 at intervals along the longitudinal direction. Each first support rod 332 extends laterally and has opposing first and second ends. The length of first support rod 332 is the same as the width of sail 331. Therefore, if sail 331 is irregularly shaped, multiple first support rods 332 may have different lengths due to different installation heights. Of course, if sail 331 is a regular rectangle, multiple first support rods 332 may have the same length. Second support rod 333 is also fixed to sail 331 and located above the multiple first support rods 332, that is, it is located at the top of sail 331. Second support rod 333 extends horizontally or diagonally. Depending on the shape of the top of sail 331, the extension direction of second support rod 333 also varies. Multiple guide rings 334 are provided, one on each of the first support rod 332 and the second support rod 333. The guide rings 334 are longitudinally spaced apart and sleeved around the mast 13. The distance between the guide rings 334 and the first end of the first support rod 332 is greater than the distance between the guide rings 334 and the second end of the first support rod 332. This allows the sail 331 to be eccentric relative to the mast 13, facilitating its rotation within a certain range around the mast 13 under wind. The second support rod 333 also has opposing first and second ends. The distance between the guide rings 334 and the first end of the second support rod 333 can be greater than, equal to, or less than the distance between the guide rings 334 and the second end of the second support rod 333, depending on the shape of the top of the sail 331. The guide rings 334 guide the rotation of the sail 331 around the mast 13 and also guide the elevation of the sail 331 along the height of the mast 13.

[0074] The sail deflection assembly 34 includes a deflection rod 341, a first traction cable 342, and a retraction and deployment mechanism. Each deflection rod 341 corresponds to each first support rod 332, resulting in multiple deflection rods 341. Each deflection rod 341 extends laterally and is hinged at one end to the first support rod 332, allowing it to swing horizontally. The hinge point between the deflection rod 341 and the first support rod 332 is located between the mast 13 and the first end of the first support rod 332. The length of the deflection rod 341 is greater than the distance between the hinge point and the first end of the first support rod 332. Therefore, when the deflection rod 341 rotates to a position parallel or approximately parallel to the first support rod 332, the other end of the deflection rod 341 is located outside the first end of the first support rod 332 and, consequently, outside the sail hull 331. Each first traction cable 342 corresponds to each deflection rod 341, resulting in multiple first traction cables 342. One end of the first traction cable 342 is connected to the other end of the deflection rod 341, and the other end is retracted or released by a retractable mechanism located at the upper end of the mast 13. It should be noted that the retractable mechanism is located on an adjacent mast 13, specifically, on a mast 13 of another adjacent sailing device, so that the retractable mechanism can retract or release the first traction cable 342.

[0075] Figure 12 shows the operating principle of a sail-type wind turbine provided in one of the aforementioned embodiments, in one operating state. In Figure 12 , three sails are provided, one end of each sail being towed by a traction cable. In Figure 12 , the lengths of traction cables a, b, and c are identical. Sail a is coplanar with the boom, and the deflection angle of sail a is 0°. Sail b is in a downwind position, with a deflection angle of 30°. Sail c has a deflection angle of 60°. Therefore, the maximum deflection angle of the sails in Figure 12 is 60°.

[0076] FIG13 shows a working principle diagram of a sail-configured wind turbine provided by this embodiment in a working state. In FIG13 , the lengths of traction ropes a, b, and c are kept consistent, and the maximum deflection angle of the sail is 100°.

[0077] Figure 14 shows the operating principle of the sail-configured wind turbine in Figure 12 at a maximum deflection angle of 100°. In Figure 14 , when sail c is deflected at 100°, the length of traction cable c is greater than that of traction cables a and b. Therefore, the length of the traction cables must be controlled in real time during each rotation of the sail, which increases costs.

[0078] The sail deflection assembly 34 of the sail-configured wind turbine provided in this embodiment, by installing a deflection rod 341, ensures a large maximum deflection angle without requiring real-time control of the length of the first traction cable 342. Specifically, once the maximum deflection angle is determined, the length of the first traction cable 342 does not need to be adjusted during each rotation, thereby reducing production and maintenance costs. Furthermore, even if the retraction and extension mechanism in the sail deflection assembly 34 malfunctions and becomes inoperative, this will at most affect the adjustment of the sail's maximum deflection angle, but will not affect the operation of the sail-configured wind turbine, thereby improving reliability.

[0079] In one embodiment, as shown in FIG11 , the sail deflection device 34 further includes a plurality of second traction cables 343, each corresponding to the deflection rod 341. The second traction cables 343 are arranged at an angle, with one end of each second traction cable 343 connected to the other end of the deflection rod 341 and the other end connected to the first support rod 332 or the second support rod 333 located above the deflection rod 341. Since the retraction mechanism is suitable for installation below the sail and is used to retract or release the first traction cables 342, the first traction cables 342 exert a downward pulling force on the deflection rod 341. The second traction cables 343 can exert an upward pulling force on the deflection rod 341, thereby offsetting the downward pulling force exerted by the first traction cables 342 on the deflection rod 341. This allows the deflection rod 341 to swing within a horizontal plane, preventing the deflection rod 341 from bending downward due to the pull of the first traction cables 342 alone.

[0080] In one embodiment, as shown in FIG11 , the other ends of the plurality of first traction ropes 342 are connected together. For example, the other first traction ropes 342 above the lowest first traction rope 342 are all connected to the lowest first traction rope 342. Then, the retraction mechanism directly retracts or releases the lowest first traction rope 342. This makes it convenient for the retraction mechanism to retract or release the plurality of first traction ropes 342 at the same time.

[0081] In one embodiment, as shown in Figure 11, the retractable mechanism includes a telescopic rod 3441 mounted on the mast 13. The telescopic rod 3441 can be electrically, pneumatically, or hydraulically powered. The telescopic rod 3441 can be fixed to the mast 13 or mounted thereon and oscillate within a certain range. The telescopic rod 3441 can actively extend and retract laterally, thereby changing the position of the other end of the first traction cable 342 and thereby controlling the maximum deflection angle of the sail. This embodiment provides a feasible implementation of the retractable mechanism.

[0082] In one embodiment, the number m of the sail jibs 12 is one of 3, 4, 6, or 8, i.e., m=3, 4, 6, or 8, i.e., the number of sails 14, sail jibs 12, and masts 13 is 3, 4, 6, or 8. Preferably, the number of sails 14, sail jibs 12, and masts 13 is 3 or 4, which is both economical and practical.

[0083] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A sail-shaped wind turbine, characterized in that: include: Tower (10); A rotating cabin (11), which is arranged on the top of the tower (10) and is rotatably connected to the tower (10); A sail boom (12), wherein m sail booms (12) are arranged evenly around the rotation center line of the rotating cabin (11), a first end of the sail boom (12) is fixedly connected to the rotating cabin (11), and a second end extends in a direction away from the rotation center line of the rotating cabin (11); A mast (13) corresponding to the sail boom (12) in a one-to-one manner, wherein the first end of the mast is fixedly connected to the second end of the sail boom (12) and the second end extends longitudinally; and A sail (14) corresponds one to one with the mast (13) and is arranged on the mast (13).

2. The sail-shaped wind turbine according to claim 1, characterized in that: The first end of the sail (14) is connected to the mast (13), and the second end can perform reciprocating linear motion along the length direction of the mast (13); it also includes a sail lifting component corresponding to the sail (14), and the sail lifting component is used to drive the second end of the sail (14) to perform reciprocating linear motion.

3. The sail-shaped wind turbine according to claim 2, characterized in that: The sail lifting assembly comprises: A sail hoisting drum, which is arranged on the mast (13) and is rotatably connected to the mast (13); a sail lifting and pulling rope (21), the first end of which is connected to the second end of the sail (14); The second end passes around the guide wheel set arranged on the mast (13) and then extends into the mast (13) and is connected to the sail lifting drum; and A sail lifting motor is fixedly arranged on the mast (13) and is used to drive the sail lifting drum to rotate.

4. The sail-shaped wind turbine according to claim 1, characterized in that: The sail (14) can reciprocate around the axis of the mast (13) within a preset angle α, and also includes a sail deflection component corresponding to the sail (14) one by one, and the sail deflection component is used to change the deflection angle of the sail.

5. The sail-shaped wind turbine according to claim 4, characterized in that: The sail deflection assembly comprises: A sail deflection drum, which is rotatably arranged on the mast (13) adjacent to the sail (14) whose deflection angle is to be adjusted; A sail deflection motor, which is arranged on the mast (13) and is used to drive the sail deflection drum to rotate; A sail deflection traction rope has a first end which is rolled up on the sail deflection drum and fixedly connected to the sail deflection drum, and a second end which is fixedly connected to a side of the sail whose deflection angle is to be adjusted.

6. The sail-shaped wind turbine according to claim 4, characterized in that: The sail (14) comprises: Sail (331); A plurality of first support rods (332) are arranged on the sail body (331) at intervals in the longitudinal direction and extend in the transverse direction, and have opposite first and second ends; A second support rod (333) is arranged on the sail body (331) and is located above the plurality of first support rods (332), extending in a transverse direction or an oblique direction; and a plurality of guide rings (334), one of each being provided on each of the first support rod (332) and the second support rod (333), and being sleeved outside the mast (13), wherein the distance between the guide ring (334) and the first end of the first support rod (332) is greater than the distance between the guide ring (334) and the second end; The sail deflection assembly comprises: A plurality of deflection rods (341) are arranged one by one corresponding to the first support rod (332), extend in the transverse direction, one end of the deflection rods (341) is hinged to the first support rod (332), and the hinge point is located between the mast (13) and the first end of the first support rod (332), and the length of the deflection rod (341) is greater than the distance between the hinge point and the first end of the first support rod (332); A plurality of first traction ropes (342), which are arranged one-to-one corresponding to the deflection rods (341), and one end of which is connected to the other end of the deflection rod (341); and The retractable mechanism is arranged on the adjacent mast (13) and is used for retracting or releasing the other end of the first traction rope (342).

7. The sail-shaped wind turbine according to claim 6, characterized in that: The sail deflection assembly further comprises a plurality of second traction cables (343), wherein the second traction cables (343) are arranged in one-to-one correspondence with the deflection rod (341), one end of the second traction cable (343) is connected to the other end of the deflection rod (341), and the other end is connected to the first support rod (332) or the second support rod (333) located above the deflection rod (341).

8. The sail-shaped wind turbine according to claim 6, characterized in that: The other ends of the plurality of first traction ropes (342) are connected together.

9. The sail-shaped wind turbine according to claim 6, characterized in that: The retractable mechanism comprises a telescopic rod (3441) arranged on the mast (13).

10. The sail-shaped wind turbine according to any one of claims 1 to 9, characterized in that: The number m of the sail booms (12) is one of 3, 4, 6 or 8.

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