A wind power generation device

Abstract

The present invention relates to the technical field of wind power generation devices, and provides a wind-solar power generation device, including a resistance + lift type wind wheel structure, including a vertical axis transmission structure with a magnetic bearing; wherein the vertical axis transmission structure is arranged at the center of the wind wheel structure, and the wind wheel structure includes: a wind wheel assembly, the wind wheel assembly is arranged on the vertical axis transmission structure and connected to the vertical axis transmission structure to drive the vertical axis transmission structure to rotate. The wind wheel assembly is arranged on the vertical axis transmission structure, and the wind wheel assembly drives the vertical axis transmission structure to rotate under the action of wind force to achieve wind power generation. Furthermore, the photovoltaic assembly is directly arranged on the wind wheel assembly, so that the wind wheel assembly is connected to the photovoltaic assembly, thereby achieving a more concise and reasonable wind power generation device, and the overall structure is simple, and the power generation efficiency of the photovoltaic assembly is improved and the service life of the photovoltaic assembly is extended, saving land resources and reducing the overall cost.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation devices, and more specifically, to a wind power generation device. Background Art

[0002] Wind turbines and photovoltaic generators are renewable clean energy sources that are energy-saving and environmentally friendly. They are increasingly used and are also the most important components of future energy.

[0003] In the prior art, wind power generation and photovoltaic power generation are set up separately, with a high overall comprehensive cost. In addition, traditional photovoltaic modules are placed in a flat manner, which requires a large amount of land resources and has a low power generation efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a wind power generation device to solve the technical problems in the prior art that wind power generation and photovoltaic power generation are separately set up, the overall comprehensive cost is high, and traditional photovoltaic components are placed in a flat manner, which requires a large amount of land resources and has low power generation efficiency.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] The present invention provides a wind power generation device, comprising:

[0007] Vertical shaft transmission structure;

[0008] The wind wheel structure, wherein the vertical axis transmission structure is arranged at the center of the wind wheel structure, wherein the wind wheel structure comprises:

[0009] A wind wheel assembly is arranged on the vertical axis transmission structure and connected to the vertical axis transmission structure to drive the vertical axis transmission structure to rotate.

[0010] According to the above-mentioned wind power generation device, the wind wheel assembly includes a transverse support and at least two blade units, wherein each of the blade units includes:

[0011] first leaf;

[0012] A second blade, wherein the first blade and the second blade are both connected to the horizontal support to form a closed end, and the first blade and the second blade are inclined to form an angle, and the opposite side of the closed end has a first opening;

[0013] A side baffle is disposed at an edge between the first blade and the second blade and connected to the first blade and the second blade, and an opposite side of the side baffle has a second opening.

[0014] According to the above-mentioned wind power generation device, the first blade is located on the upper part of the second blade, and the first blade is provided with a double-sided photovoltaic component.

[0015] According to the above-mentioned wind power generation device, a reflective sheet is provided on a side of the second blade close to the first blade.

[0016] According to the above-mentioned wind power generation device, the side baffle is a transparent side baffle.

[0017] According to the above-mentioned wind power generation device, the angle between the first blade and the horizontal plane where the horizontal bracket is located is in the range of 0° to 45°, and the angle between the photovoltaic module and the horizontal plane where the horizontal bracket is located is in the range of 0° to 45°;

[0018] And / or, the angle formed by the second blade and the horizontal plane where the cross support is located ranges from 0° to 45°.

[0019] According to the above-mentioned wind power generation device, a first window of an overspeed protection device is provided on the second blade, the first window is located at a corner formed by the first blade, the second blade and the side baffle, a first window sash plate is provided at the first window, and the first window sash plate is connected to the second blade in an openable and closable manner;

[0020] And / or, a second window is formed on the side baffle, a second window sash plate is provided at the second window, and the second window sash plate is connected to the side baffle in an openable and closable manner.

[0021] According to the wind power generation device described above, the wind wheel assembly includes four blade units, the cross bracket is in a cross shape, one blade unit is arranged on each support arm included in the cross bracket, and the alternate blade units are centrally symmetrical.

[0022] According to the above-mentioned wind power generation device, the wind wheel structure further includes a drainage component, and the drainage component is connected to the wind wheel component;

[0023] Wherein, the drainage component includes a drainage pipe, a water inlet is provided on the drainage pipe, a drainage outlet is provided on the outer edge of the drainage pipe, and the drainage outlet is provided on the side opposite to the rotation direction of the wind wheel structure.

[0024] According to the above-mentioned wind power generation device, the vertical axis transmission structure includes:

[0025] Support base;

[0026] A motor, the motor is arranged on the support base and connected to the support base;

[0027] A transmission mechanism, the transmission mechanism is arranged above the motor and connected to the motor shaft of the motor, and the transmission mechanism is connected to the wind wheel assembly;

[0028] A magnetic bearing is disposed between the support base and the wind wheel assembly, and is connected to both the support base and the wind wheel assembly.

[0029] The beneficial effects of the wind power generation device provided by the present invention are at least:

[0030] The wind power generation device provided by the present invention has a wind wheel assembly disposed on the vertical axis transmission structure and connected to the vertical axis transmission structure. Under the action of wind force, the wind wheel assembly drives the vertical axis transmission structure to rotate, thereby realizing wind power generation. Furthermore, the present invention can directly dispose the photovoltaic assembly on the wind wheel assembly, so that the wind wheel assembly and the photovoltaic assembly are connected together, thereby realizing that the entire wind power generation device is more concise and reasonable, and the overall structure is simple, and the power generation efficiency of the photovoltaic assembly is improved and the service life of the photovoltaic assembly is extended, thereby saving land resources and reducing comprehensive costs. The wind power generation device provided by the present invention can be used for centralized and distributed photovoltaic power generation, and used as street lamps, pavilions, parasols, sentry boxes, sentry boxes, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of a wind power generation device provided in an embodiment of the present invention Figure 1 ;

[0033] Figure 2 A schematic diagram of the structure of a wind power generation device provided in an embodiment of the present invention Figure 2 ;

[0034] Figure 3 A schematic structural diagram of a wind wheel structure provided by an embodiment of the present invention;

[0035] Figure 4 for Figure 2 A schematic diagram of the enlarged structure of part B in FIG.

[0036] Figure 5 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0037] Figure 6A schematic diagram of the structure of a vertical shaft transmission structure provided by an embodiment of the present invention;

[0038] Figure 7 A schematic structural diagram of a braking mechanism provided in an embodiment of the present invention.

[0039] Among them, the reference numerals in the figure are:

[0040]

[0041]

[0042] DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly or indirectly located on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on the present technical solution. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0045] See also Figure 1 and Figure 2 This embodiment provides a wind power generation device 100, including a wind rotor structure with a resistance + lift type, including: a vertical axis transmission structure 10; a wind rotor structure 20, wherein the vertical axis transmission structure 10 is arranged at the center of the wind rotor structure 20, wherein, Figure 3 The wind wheel structure 20 includes: a wind wheel assembly 210, wherein the wind wheel assembly 210 is disposed on the vertical axis transmission structure 10 and connected to the vertical axis transmission structure 10 to drive the vertical axis transmission structure 10 to rotate; a photovoltaic assembly 220, wherein the photovoltaic assembly 220 is disposed on the wind wheel assembly 210 and connected to the wind wheel assembly 210.

[0046] The working principle of the wind power generation device 100 provided in this embodiment is as follows:

[0047] The wind power generation device 100 provided in this embodiment has a wind wheel assembly 210 disposed on the vertical axis transmission structure 10 and connected to the vertical axis transmission structure 10. Under the action of wind force, the wind wheel assembly 210 drives the vertical axis transmission structure 10 to rotate to achieve power generation. At the same time, this embodiment directly disposes the photovoltaic assembly 220 on the wind wheel assembly 210, which also improves the power generation efficiency of the photovoltaic assembly 220 and prolongs the service life of the photovoltaic assembly 220, saves land resources, and reduces the overall cost, as follows:

[0048] First, temperature. When the temperature of the photovoltaic module 220 is too high, the power generation efficiency will decrease. This is the temperature characteristic of the photovoltaic module 220. Generally speaking, the power of the photovoltaic module decreases as the temperature rises. After the temperature of the photovoltaic module panel exceeds 25 degrees Celsius, the typical power temperature coefficient is -0.40% / ℃, that is, the power decreases by 0.40% for every 1℃ increase in the photovoltaic module. Under strong sunlight, the temperature of conventional photovoltaic modules can easily reach 50-70 degrees Celsius. The continuous increase in temperature will not only reduce the photoelectric conversion rate, but also shorten the service life of the battery.

[0049] In this embodiment, the photovoltaic module 220 is directly set on the wind wheel module 210. The entire wind wheel structure 20 is easy to rotate and start. It starts to rotate normally in a breeze. During the rotation, the photovoltaic module 220 is blown by wind on both sides, and the temperature will naturally drop, thereby improving the power generation efficiency of the photovoltaic module 220 and extending the service life of the photovoltaic module 220.

[0050] Second, cleanliness. When a dust layer is formed on the surface of the photovoltaic module 220, the penetration of sunlight is weakened, which significantly reduces the amount of light received by the photovoltaic module 220 and the total amount of power output of the photovoltaic module 220. The power generation is reduced by 5% to 45%, which is an important reason affecting the working efficiency of the photovoltaic power generation system. The commonly used method in the prior art is to increase manual cleaning of the photovoltaic module 220 at regular intervals, which increases the maintenance cost.

[0051] In this embodiment, the photovoltaic module 220 is directly set on the wind wheel module 210. Under the action of wind force, the entire wind wheel structure 20 is driven to rotate. In strong winds and heavy rains, the panel surface is cleaned naturally. The clean photovoltaic module 220 directly increases the power generation and reduces the maintenance cost.

[0052] Third, increase the light-receiving surface of the photovoltaic module 220. The conventional photovoltaic modules 220 are placed in a planar arrangement, which temporarily uses a large amount of land resources.

[0053] The power generation equipment of this embodiment is of three-dimensional design. The wind wheel structure 20 can be arranged from low to high according to the direction of light. Different heights of wind wheel structures 20 can receive wind at different levels, and photovoltaic components 220 at corresponding different heights can all receive sunlight. Therefore, on the same area of ​​land, more photovoltaic components 220 light-receiving areas can be provided, which directly increases the power generation and saves social land resources.

[0054] Fourth, reduce the overall cost. Photovoltaic power generation system and wind power generation system have a large number of common parts and the same system, including rectifiers, inverters, circuit systems, control systems, energy storage systems, structural support systems, foundations, etc. of the two power generation systems.

[0055] This embodiment combines wind and solar power generation, systematically saving a large amount of parts and system equipment costs, and greatly shortening the overall investment payback period.

[0056] The beneficial effects of the wind power generation device 100 provided in this embodiment are at least:

[0057] The wind power generation device 100 provided in this embodiment has the wind wheel assembly 210 disposed on the vertical axis transmission structure 10 and connected to the vertical axis transmission structure 10. Under the action of wind force, the wind wheel assembly 210 drives the vertical axis transmission structure 10 to rotate, thereby realizing wind power generation. At the same time, the photovoltaic assembly 220 is directly disposed on the wind wheel assembly 210 in this embodiment, so that the wind wheel assembly 210 is connected with the photovoltaic assembly 220, thereby realizing that the entire wind power generation device 100 is more concise and elegant, and the overall structure is simple, and the power generation efficiency of the photovoltaic assembly 220 is improved and the service life of the photovoltaic assembly 220 is extended, land resources are saved, and the overall cost is reduced. The wind power generation device 100 provided in this embodiment can be used as a street lamp, a pavilion, a parasol, a sentry box, a sentry box, etc.

[0058] In a preferred embodiment, see Figure 3 The wind wheel assembly 210 includes a transverse support 211 and at least two blade units 212, wherein each of the blade units 212 includes: a first blade 2121; a second blade 2122, wherein the first blade 2121 and the second blade 2122 are both connected to the transverse support 211 to form a closed end, and the first blade 2121 and the second blade 2122 are inclined to form an angle, and the opposite side of the closed end has a first opening; a side baffle 2123, wherein the side baffle is arranged at the edge between the first blade 2121 and the second blade 2122 and is connected to the first blade 2121 and the second blade 2122, and the opposite side of the side baffle 2123 has a second opening.

[0059] Since the first blade 2121 and the second blade 2122 included in the blade unit 212 are respectively connected to the cross bracket 211, and the first blade 2121 and the second blade 2122 form a closed end at the cross bracket 211, and the first blade 2121 and the second blade 2122 are inclined, so that the first blade 2121 and the second blade 2122 form an angle, and the opposite side of the closed end has a first opening. At the same time, since the side baffle 2123 is set at the edge of the first blade 2121 and the second blade 2122, and the opposite side of the side baffle 2123 has a second opening, the first blade 2121, the second blade 2122, the side baffle 2123 are arranged at the edge of the first blade 2121 and the second blade 2122, and the side baffle 2123 has a second opening. 2123 forms a triangular cavity, and the first opening and the second opening are connected, with a simple structure and low cost. External wind can be blown into the triangular cavity through the first opening and discharged from the second opening to drive the entire blade unit 212 and the cross bracket 211 to rotate, thereby realizing wind power generation, and when the blade unit 212 rotates, the wind sweeping surface is increased (the cross-section of the wind sweeping surface formed in this embodiment is rectangular), thereby improving the wind power generation efficiency. Furthermore, since the wind wheel assembly 210 includes two or more blade units 212, wind from multiple different directions can be used to drive multiple blade units 212 to rotate at the same time, thereby further improving the wind power generation efficiency.

[0060] In a preferred embodiment, please continue to refer to Figure 3 The first blade 2121 is located on the upper part of the second blade 2122 , photovoltaic components 220 are provided on both sides of the first blade 2121 , and a reflective sheet 2124 is provided on the side of the second blade 2122 close to the first blade 2121 .

[0061] When the area and power generation efficiency of the photovoltaic module 220 are constant, the power generation of the photovoltaic system is determined by the intensity of solar radiation, that is, the intensity of solar light will directly affect the power generation efficiency of the battery. In this embodiment, since the photovoltaic modules 220 are arranged on both sides of the first blade 2121, for the convenience of description, the photovoltaic module 220 arranged on the side of the first blade 2121 away from the second blade 2122 is recorded as the first photovoltaic surface, and the photovoltaic module 220 arranged on the side of the first blade 2121 close to the second blade 2122 is recorded as the second photovoltaic surface. At the same time, a reflector 2124 is arranged on the side of the second blade 2122 close to the first blade 2121. When there is sunlight, the sunlight directly shines on the first photovoltaic surface to realize light energy power generation. Furthermore, due to the arrangement of the reflector 2124, The sunlight is reflected to the second photovoltaic surface, realizing double-sided solar power generation. The power generation of the reflected light received by the second photovoltaic surface through the reflector 2124 can reach 65%-85% of the power generation of the first photovoltaic surface receiving direct irradiation. The diffuse reflection in the snow can also increase the power generation of the double-sided photovoltaic module 220 by 10-15%. It can be seen that in this embodiment, photovoltaic modules 220 are arranged on both sides of the first blade 2121, and reflectors 2124 are arranged on the second blade 2122, which greatly improves the power generation of the photovoltaic module 220. At the same time, the rotation of the wind wheel structure 20 can further improve the power generation efficiency of solar energy.

[0062] In other embodiments, the first blade 2121 is located on the upper part of the second blade 2122, and the photovoltaic component 220 is arranged on a side of the first blade 2121 away from the second blade 2122, so that solar power generation can be achieved by only receiving sunlight.

[0063] Optionally, the first blade 2121 is a double-sided crystalline silicon / thin-film photovoltaic component 220 .

[0064] Optionally, the first blade 2121 is a single-sided crystalline silicon / thin-film photovoltaic component 220 .

[0065] In a preferred embodiment, the side baffle 2123 is a transparent side baffle, which facilitates sunlight to enter the triangular cavity and be reflected to the second photovoltaic surface by the reflective sheet 2124, thereby further improving the power generation efficiency of the photovoltaic module 220.

[0066] In a preferred embodiment, please continue to refer to Figure 3 The side baffle 2123 has a convex portion 21231, and the convex portion 21231 protrudes outward toward a side away from the second opening.

[0067] Since a protrusion 21231 is provided on the side baffle 2123, and the protrusion 21231 protrudes outward toward the side away from the second opening, that is, the protrusion 21231 protrudes outward toward the side away from the triangular cavity, when the triangular cavity is driven by external wind force to rotate the entire blade unit 212, the protrusion 21231 can reduce the resistance to the rotation of the blade unit 212, thereby improving the wind energy generation efficiency.

[0068] Optionally, the protrusion 21231 is located in the middle of the side baffle 2123 .

[0069] Optionally, the side baffle 2123 includes a first side baffle and a second side baffle, one end of the first side baffle is connected to the first blade 2121, one end of the second side baffle is connected to the second blade 2122, and the other end of the first side baffle is connected to the other end of the second side baffle to form the convex portion 21231. Optionally, the convex portion 21231 is in an outward convex angle shape. Optionally, the convex portion 21231 is in an outward convex arc shape.

[0070] In a preferred embodiment, the angle range between the first blade 2121 and the horizontal plane where the cross bracket 211 is located is 0°~45°, the angle range between the photovoltaic component 220 and the horizontal plane where the cross bracket 211 is located is 0°~45°, and the angle range between the second blade 2122 and the horizontal plane where the cross bracket 211 is located is 0°~45°, that is, the angle formed by the first blade 2121 and the second blade 2122 is 0°~90°.

[0071] From the total solar radiation on the inclined surface and the principle of direct and scattered separation of solar radiation, it can be known that the total solar radiation on the inclined surface (Ht) is composed of direct solar radiation (Hbt), sky scattered radiation (Hdt) Hdt and ground reflected radiation (Hrt), that is: Ht = Hbt + Hdt + Hrt. In the same geographical location, due to the different installation angles of photovoltaic modules, the cumulative amount of sunlight absorbed is different, and the cumulative difference in radiation causes the difference in power generation. The angle range between the photovoltaic module 220 and the horizontal bracket 211 in this embodiment is 0° to 45°. Throughout the day, there are more photovoltaic modules 220 perpendicular to or nearly bowed to the sunlight, and other panels can also play a reflective role, so more power generation will be generated.

[0072] When there is only wind, the angles between the first blade 2121 and the second blade 2122 and the cross support 211 are set to range from 0° to 45°, which increases the wind sweeping area and improves the wind power generation efficiency.

[0073] Optionally, the angle between the first blade 2121 and the cross bracket 211 is 15° to 35°, the angle between the photovoltaic module 220 and the cross bracket 211 is 15° to 35°, and the angle between the second blade 2122 and the cross bracket 211 is 15° to 35°.

[0074] Optionally, the angle between the first blade 2121 and the cross bracket 211 is 30°, the angle between the photovoltaic component 220 and the cross bracket 211 is 30°, and the angle between the second blade 2122 and the cross bracket 211 is 30°, so that the formed triangular cavity is an equilateral triangular cavity.

[0075] It should be understood that the angle between the first blade 2121 and the cross bracket 211, the angle between the photovoltaic component 220 and the cross bracket 211, and the angle between the second blade 2122 and the cross bracket 211 are not limited to the above values, but may also be other values, which are not limited here.

[0076] Optionally, the edge of the second blade 2122 at the second opening is toothed, so that the wind entering from the first opening can flow out of the triangular cavity evenly from the second opening, so that the blade unit 212 is pushed to rotate more smoothly.

[0077] In a preferred embodiment, see Figure 3 , a support column 2128 with a wing-shaped cross section is also provided between the first blade 2121 and the second blade 2122, and the support column 2128 is located on the opposite side of the side baffle 2123. The wing-shaped support column 2128 not only supports the first blade and the second blade in the longitudinal direction, but also adopts an airplane wing-shaped cross section, so that it can play a role of lift. When the wind flows through the wing-shaped support column, a fluid mechanics lift effect can be formed (similar to the sail of a sailboat using the wind flow to generate a driving component in the forward direction). In a more preferred embodiment, the wing-shaped support column 2128 can also be arranged to be controlled to rotate so as to better utilize the tangential component of the wind flow. In a simple structural setting, a guide tail blade can be directly provided on the support column, so that after pre-design and debugging, the wind flow is used to keep the support column 2128 in a position to achieve the maximum tangential component.

[0078] The support column 2128, the first blade 2121, the second blade 2122 and the side baffle 2123 together form a stable triangular cavity structure. And because the cross section of the support column 2128 is wing-shaped, the four wing-shaped support columns 2128 of the four triangular cavities form another H-shaped four lift-type wind blades in the overall wind rotor structure 20 (in the relative movement between the incoming wind and the wind rotor structure, the wing-shaped support column 2128 obtains resistance and lift, and a pressure difference is generated on the two sides of the wing-shaped support column 2128 during the movement. The pressure difference is the main lift source of the wing-shaped support column 2128, and the lift enables the wind rotor structure to obtain effective torque), so that the wind rotor structure 20 in this embodiment becomes a combined wind rotor structure of resistance type and lift type, and combined with the vertical shaft transmission structure 10 included in the wind power generation device 100, the resistance type makes the wind rotor structure easy to start, and the lift type wind blade wheel can obtain a higher wind energy utilization rate.

[0079] In a preferred embodiment, see Figure 3 and Figure 4 A first window 21221 is provided on the second blade 2122. The first window 21221 is located at a corner formed by the first blade 2121, the second blade 2122 and the side baffle 2123. A first window sash plate 2125 is provided at the first window 21221. The first window sash plate 2125 is connected to the second blade 2122 in an opening and closing manner.

[0080] When the wind reaches the set cut-out wind speed, the first window sash plate 2125 is pushed by the wind to open the first window 21221 outwards, and the ventilation of the first window 21221 immediately reduces the thrust of the wind on the wind rotor structure 20, and the rotation speed of the wind rotor structure 20 slows down accordingly. The first window sash plate 2125 gradually returns to its original position until the first window 21221 is closed, and the rotation speed of the wind rotor structure 20 returns to the normal range. By setting the first window 21221 and the first window sash plate 2125, wind speed over-speed protection is achieved.

[0081] Optionally, see Figure 4 The first window sash plate 2125 is triangular in shape, and one side of the first window sash plate 2125 close to the first opening is connected to the second blade 2122 through at least one hinge 2126, and the other two sides of the first window sash plate 2125 are respectively connected to the second blade 2122 through at least one overspeed protection member 2127.

[0082] When external wind enters the triangular cavity from the first opening, the first window sash plate 2125 is pushed by the wind to open the first window 21221 outward, that is, the two sides of the first window sash plate 2125 connected to the second blade 2122 by the overspeed protection piece 2127 are opened, and rotate around the second blade 2122 through the hinge 2126 to open the first window 21221. When the rotation speed of the wind wheel structure 20 slows down, the first window sash plate 2125 returns to its original position through the overspeed protection piece 2127 to close the first window 21221.

[0083] Optionally, the overspeed protection member 2127 includes a Z-shaped connecting member 21271 and a spring 21272 , wherein the Z-shaped connecting member 21271 is connected to both the first window sash plate 2125 and the second blade 2122 , and the spring 21272 is connected to both the first window sash plate 2125 and the second blade 2122 .

[0084] Optionally, the first sash plate 2125 and the second blade 2122 are further connected via a damper, and the damper is disposed on a side where the first sash plate 2125 and the second blade 2122 pass through the overspeed protection member 2127. Correspondingly, two overspeed protection members 2127 are disposed on the side, and the damper is disposed between the two overspeed protection members 2127. Optionally, the number of the hinges 2126 is two.

[0085] It should be understood that the structure for connecting the first sash plate 2125 and the second blade 2122 in opening and closing is not limited to the above structure, and may also be other structures, which are not limited here.

[0086] In another preferred embodiment, a second window (not shown in the figure, the same below) is opened on the side baffle 2123, and a second window sash plate (not shown in the figure, the same below) is provided at the second window, and the second window sash plate is connected to the side baffle 2123 in an opening and closing manner.

[0087] When the wind reaches the set cut-out wind speed, the second window sash plate is pushed by the wind to open the second window outwards. The ventilation through the second window immediately reduces the thrust of the wind on the blade unit 212. The rotation speed of the entire wind wheel structure 20 slows down accordingly. The second window sash plate gradually returns to its original position until the second window is closed. The rotation speed of the wind wheel structure 20 returns to the normal range. By setting the second window and the second window sash plate, wind speed over-speed protection is achieved.

[0088] In another preferred embodiment, a first window 21221 is provided on the second blade 2122, the first window 21221 is located at a corner formed by the first blade 2121, the second blade 2122 and the side baffle 2123, a first window sash board 2125 is provided at the first window 21221, and the first window sash board 2125 is openably connected to the second blade 2122. A second window (not shown in the figure, the same below) is provided on the side baffle 2123, a second window sash board (not shown in the figure, the same below) is provided at the second window, and the second window sash board is openably connected to the side baffle 2123.

[0089] When the wind reaches the set cut-out wind speed, the first window sash plate 2125 and the second window sash plate are simultaneously pushed by the wind to open the first window 21221 and the second window outwards, and the ventilation of the first window 21221 and the second window immediately weakens the thrust of the wind on the wind rotor structure 20, and the rotation speed of the wind rotor structure 20 slows down accordingly, and the first window sash plate 2125 and the second window sash plate gradually return to their original positions until the first window 21221 and the second window are closed, and the rotation speed of the wind rotor structure 20 returns to the normal range, and wind speed over-speed protection is achieved by the setting of the first window 21221 and the first window sash plate 2125, the second window and the second window sash plate.

[0090] Optionally, the connection structure between the second window sash plate and the side baffle 2123 for realizing the opening and closing connection is the same as the connection structure between the first window sash plate 2125 and the second blade 2122 for realizing the opening and closing connection, and will not be repeated here.

[0091] In a preferred embodiment, see Figure 3 The wind wheel assembly 210 includes four blade units 212, the cross bracket 211 is cross-shaped, each support arm 2111 included in the cross bracket 211 is provided with a blade unit 212, and the alternate blade units 212 are centrally symmetrical.

[0092] Since the cross bracket 211 is in a cross shape, that is, the cross bracket 211 includes four support arms 2111, and the four blade units 212 are respectively arranged on the four support arms 2111, the four blade units 212 are also arranged in a cross shape, and the alternating blade units 212 are centrally symmetrically arranged, so that the four blade units 212 respectively receive wind from different directions, that is, the entire wind wheel assembly 210 can receive wind from four directions, thereby improving the efficiency of wind power generation.

[0093] In a preferred embodiment, see Figure 1 , Figure 3 and Figure 5The wind wheel structure 20 also includes a drainage component 230, and the drainage component 230 is connected to the wind wheel component 210; wherein, the drainage component 230 includes a drainage pipe 231, and the drainage pipe 231 is provided with a water inlet 2311, and the outer edge of the drainage pipe 231 is provided with a drainage port 2312, and the drainage port 2312 is provided on the side opposite to the rotation direction of the wind wheel structure 20.

[0094] Rainwater flows into the drain pipe 231 through the water inlet 2311 along the photovoltaic module 220, and the water in the drain pipe 231 flows to the drain outlet 2312 on the outer edge of the drain pipe 231. The drain outlet 2312 is arranged on the side opposite to the rotation direction of the wind wheel structure 20. When the rainwater is discharged, a reaction force is generated to drive the entire wind wheel structure 20 to rotate, thereby driving the motor 120 to generate electricity, so that in the absence of wind and light, the motor 120 can be driven to generate electricity by discharging rainwater, thereby extending the power generation time and increasing the power generation amount.

[0095] Optionally, the water inlet 2311 is a quarter drainage pipe surface, which is not only convenient for rainwater to enter, but also convenient for collecting rainwater so that rainwater will not overflow from the water inlet 2311.

[0096] Optionally, the wind wheel assembly 210 includes a plurality of blade units 212, and each blade unit 212 is provided with a drain pipe 231 at the support arm 2111. When rainwater collected in the plurality of drain pipes 231 is discharged from the drain port 2312 at the same time, the wind wheel structure 20 is better driven to rotate, thereby realizing the drive motor 120 to generate electricity.

[0097] In a preferred embodiment, see Figure 6 The vertical axis transmission structure 10 includes: a support base 110; a motor 120, wherein the motor 120 is disposed on the support base 110 and connected to the support base 110; a transmission mechanism 130, wherein the transmission mechanism 130 is disposed above the motor 120 and connected to the motor shaft 121 of the motor 120, and the transmission mechanism 130 is connected to the wind wheel assembly 210; a magnetic bearing 140, wherein the magnetic bearing 140 is disposed between the support base 110 and the wind wheel assembly 210, and is connected to both the support base 110 and the wind wheel assembly 210, and the magnetic bearing 140 is disposed on the periphery of the motor shaft 121.

[0098] Since the wind wheel assembly 210 is connected to the transmission mechanism 130, and the transmission mechanism 130 is connected to the motor shaft 121, under the action of external thrust (wind or water power), the wind wheel is driven by the external thrust to rotate, and the wind wheel assembly 210 is linked to the motor shaft 121 through the transmission mechanism 130 to rotate, thereby enabling the motor 120 to generate wind power; at the same time, since a magnetic suspension bearing 140 is also provided between the support base 110 and the wind wheel assembly 210, and since the magnetic suspension bearing 140 has the characteristics of no wear, no lubrication, less heat, no power consumption, etc., through the action of the magnetic suspension bearing 140, the wind wheel assembly 210 can be The wind wheel assembly 210 can be effectively rotated under the action of external micro-thrust (micro-wind force or micro-water force), so that the motor 120 can rotate and generate electricity under the external micro-thrust, thereby achieving low energy consumption and low cost; by setting the magnetic suspension bearing 140, the connection position with the wind wheel assembly 210 is increased, thereby making the wind wheel assembly 210 more stable during rotation; by adopting the magnetic suspension bearing 140, wear-free and contact-free are achieved, thereby avoiding the resonance phenomenon of the wind power generation device 100 using the vertical axis transmission structure 10, thereby improving the stability and reliability of the wind power generation device 100.

[0099] In a preferred embodiment, please continue to refer to Figure 6 The magnetic bearing 140 includes: a stator 141, which is annular and has a permanent magnet, and is connected to the support base 110; a rotor 142, which is annular and has a permanent magnet, is disposed above the stator 141 and is connected to the wind wheel assembly 210, and the stator 141 and the rotor 142 repel each other and have a first gap 143, and the rotor 142 can rotate relative to the stator 141 under the action of the wind wheel assembly 210.

[0100] Under the action of external micro-thrust (micro-wind force or micro-water force), the wind wheel assembly 210 is stressed. Since the rotor 142 and the stator 141 repel each other under the action of the magnetic field and have a first gap 143, the wind wheel assembly 210 can easily drive the rotor 142 to rotate relative to the stator 141, and the rotor 142 and the stator 141 always maintain the first gap 143, and the rotor 142 and the stator 141 are contactless and frictionless, thereby realizing more efficient linkage of the motor shaft 121 through the transmission mechanism 130 to achieve power generation. The magnetic suspension bearing 140 provided in this embodiment has a simple structure and stable operation.

[0101] Optionally, the size of the first gap 143 ranges from 8 mm to 12 mm. Optionally, the size of the first gap 143 is 10 mm. It should be understood that the size of the first gap 143 is not limited to the above situation, and can also be other situations, which are not limited here.

[0102] In a preferred embodiment, please continue to refer to Figure 6 The magnetic bearing 140 also includes an auxiliary load-bearing bearing 144, which is arranged on the inner wall of the stator 141; the magnetic bearing 140 also includes a receiving portion 145, which is arranged on the inner wall of the rotor 142; the auxiliary load-bearing bearing 144 and the receiving portion 145 have a second gap 146, and the second gap 146 is smaller than the first gap 143.

[0103] Under normal conditions (when the magnetic bearing 140 is not demagnetized), the rotor 142 rotates relative to the stator 141, and the first gap 143 is always maintained between the rotor 142 and the stator 141. When the rotor 142 and the stator 141 are demagnetized, the rotor 142 moves toward the stator 141 until the receiving portion 145 provided on the inner side of the rotor 142 is connected to the auxiliary bearing 144 provided on the inner wall of the stator 141, and because the second gap 146 between the auxiliary bearing 144 and the receiving portion 145 is smaller than the first gap 143 when the magnetic bearing is not demagnetized, when the receiving portion 145 is connected to the auxiliary bearing 144, there is still a gap between the rotor 142 and the stator 141, which facilitates the matching of the receiving portion 145 and the auxiliary bearing 144, so that the wind wheel assembly 210 can also drive the rotor 142 to rotate relative to the stator 141 under the action of wind or water. It can be seen that by providing the receiving portion 145 and the auxiliary load-bearing bearing 144 , the stability of the vertical axis transmission structure 10 is improved as a whole, and the structure is simple. At the same time, the receiving portion 145 is also used to limit the rotation trajectory of the rotor 142 .

[0104] Optionally, the size of the second gap 146 ranges from 4 mm to 6 mm. Optionally, the size of the second gap 146 is 5 mm. It should be understood that the size of the second gap 146 is not limited to the above situation, and can also be other situations, which are not limited here.

[0105] In a preferred embodiment, please continue to refer to Figure 6 The outer sleeve of the magnetic bearing 140 is provided with a baffle 147 for shielding dust and preventing dust from entering the magnetic bearing 140 .

[0106] In a preferred embodiment, a through hole is provided in the middle of the cross bracket 211 ; the transmission mechanism 130 includes a planetary gear 131 , the planetary gear 131 is provided in the through hole and connected to the through hole wall, and the motor shaft 121 is connected to the planetary gear 131 .

[0107] Since the transmission mechanism 130 includes a planetary gear 131, the planetary gear 131 is stably connected to the cross bracket 211 of the wind wheel assembly 210, and the planetary gear 131 is also connected to the motor shaft 121. Therefore, when the wind wheel assembly 210 is subjected to an external thrust (wind force or water force), the cross bracket 211 drives the planetary gear 131 to rotate, and the planetary gear 131 drives the motor shaft 121 to rotate, thereby driving the motor 120 to generate electricity. The structure is simple, and the use of the planetary gear 131 can improve the transmission ratio of the motor 120, thereby improving the power generation efficiency of the motor 120.

[0108] In a preferred embodiment, please continue to refer to Figure 6 The planetary gear 131 includes a ring gear 1311, a sun gear 1312, and a small planetary gear 1313. The sun gear 1312 is arranged inside the ring gear 1311, and at least one small planetary gear 1313 is arranged on the periphery of the sun gear 1312. The small planetary gear 131 is meshed with the sun gear 1312 and the ring gear 1311 respectively, and the gear part at the end of the motor shaft 121 is meshed with the sun gear 1312.

[0109] In a preferred embodiment, please continue to refer to Figure 6 The small planetary gear 1313 is connected to the support base 110 through the planetary shaft 13131. Thus, the entire planetary gear 131 is more stably connected in the through hole of the cross bracket.

[0110] Optionally, three asteroid gears 1313 are disposed on the periphery of the sun gear 1312, and the three asteroid gears 1313 are evenly arranged around the periphery of the sun gear 1312. It should be understood that the number of asteroid gears 1313 on the periphery of the sun gear 1312 is not limited to the above three, and can also be other values, such as four, etc., which is not limited here.

[0111] In a preferred embodiment, please continue to refer to Figure 6 The vertical axis transmission structure 10 further includes a braking mechanism 150, and the braking mechanism 150 is used to control the motor 120 to stop rotating.

[0112] In a preferred embodiment, please continue to refer to Figure 6The brake mechanism 150 includes: a brake motor 151; a brake belt 152, wherein the brake belt 152 is disposed around the outside of the motor shaft 121 and connected to the brake motor 151.

[0113] When it is necessary to control the motor 120 to stop rotating, the brake belt 152 is adjusted by controlling the brake motor 151 so that the brake belt 152 holds the motor shaft 121 tightly to prevent the motor shaft 121 from continuing to rotate, thereby controlling the motor 120 to stop rotating. The brake mechanism 150 has a simple structure and is easy to use.

[0114] In another preferred embodiment, see Figure 7 The brake mechanism 150 includes at least two brake components, each of which includes: a brake clamp 153 for holding the motor shaft 121; a V-shaped lever 154, one end of which is connected to the brake clamp 153, and the other end of which is used to connect to the brake handle 31; and an elastic component 155, which is connected to the V-shaped lever 154. Optionally, please refer to Figure 7 and Figure 1 The brake handle 131 is arranged on the tower 30, and the maintenance window 33 arranged on the tower 30 facilitates the operator to manually operate the brake handle. The brake handle 31 is connected to the V-shaped lever 154 through the steel wire 32. When the motor 120 needs to be controlled to stop rotating, the operator operates the brake handle 131, and one end of the V-shaped lever 154 connected to the brake handle 131 is pulled, and then the end of the V-shaped lever 154 connected to the brake clamp 153 is also pulled, thereby driving the brake clamp 153 to move and hold the motor shaft 121. At this time, the elastic component 155 generates elastic deformation. When the brake handle 31 is operated again, the elastic component 155 restores the elastic deformation and drives the V-shaped lever 154 and the brake clamp 153 to return to their original positions.

[0115] Optionally, the portion of the brake clamp 153 used to hold the motor shaft 121 is in a concave arc shape, and a brake pad 156 is provided at the concave arc shape, which can enable the brake clamp 153 to tightly hold the motor shaft 121 to control the motor shaft 121 to stop rotating.

[0116] Optionally, the support base 110 includes: a support base plate 111, the support base plate 111 is connected to the tower 30, the motor 120 is arranged on the support base plate 111 and connected to the support base plate 111; a support portion 112, the support portion 112 is arranged on the support base plate 111 and connected to the support base plate 111, the magnetic bearing 140 is arranged on the support portion 112 and connected to the support portion 112; a support frame 113, the support frame 113 is arranged on the support base plate 111 and connected to the support base plate 111, the transmission mechanism 130 is connected to the support frame 113 through a planetary shaft 13131, and the brake motor 120 is also arranged on the support frame 113. Optionally, the motor 120 is arranged in a cavity formed by the support frame 113 and the support base plate 111, and the motor shaft 121 passes through the support frame 113 and is connected to the transmission mechanism 130. Optionally, the brake caliper 153 is fixed to the support base 110 via a connecting piece.

[0117] In a preferred embodiment, see Figure 1 The wind power generation device 100 also includes a tower 30 and a base 40, the tower 30 is arranged above the base 40 and connected to the base 40, the vertical axis transmission structure 10 is arranged at the top of the tower 30 and connected to the tower 30, and the wind wheel structure 20 is arranged above the vertical axis transmission structure 10 and connected to the vertical axis transmission structure 10.

[0118] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind power generation device, characterized in that: include: Vertical shaft transmission structure; The wind wheel structure, wherein the vertical axis transmission structure is arranged at the center of the wind wheel structure, wherein the wind wheel structure comprises: A wind wheel assembly, wherein the wind wheel assembly is disposed on the vertical shaft transmission structure and connected to the vertical shaft transmission structure to drive the vertical shaft transmission structure to rotate; The wind wheel assembly comprises a transverse support and at least two blade units, wherein each of the blade units comprises: first leaf; A second blade, wherein the first blade and the second blade are both connected to the horizontal support to form a closed end, and the first blade and the second blade are inclined to form an angle, and the opposite side of the closed end has a first opening; a side baffle, the side baffle being arranged at an edge between the first blade and the second blade and connected to the first blade and the second blade, the opposite side of the side baffle having a second opening; The first blade is located on the upper part of the second blade, and the first blade is provided with a double-sided photovoltaic assembly; A reflective sheet is provided on a side of the second blade close to the first blade; The angle between the first blade and the horizontal plane where the horizontal bracket is located is in the range of 0° to 45°, and the angle between the double-sided photovoltaic module and the horizontal plane where the horizontal bracket is located is in the range of 0° to 45°; And / or, the angle formed by the second blade and the horizontal plane where the cross support is located ranges from 0° to 45°; A first window of an overspeed protection device is provided on the second blade, the first window is located at a corner formed by the first blade, the second blade and the side baffle, a first window sash plate is provided at the first window, and the first window sash plate is connected to the second blade in an openable and closable manner; And / or, a second window is provided on the side baffle, a second window sash plate is provided at the second window, and the second window sash plate is connected to the side baffle in an openable and closable manner; The wind wheel assembly includes four blade units. The cross bracket is in a cross shape. Each support arm included in the cross bracket is provided with a blade unit, and the alternate blade units are centrally symmetrical.

2. The wind power generation device according to claim 1, characterized in that: The side baffle is a transparent side baffle.

3. The wind power generation device according to claim 1, characterized in that: The wind wheel structure further includes a drainage component, and the drainage component is connected to the wind wheel component; Wherein, the drainage component includes a drainage pipe, a water inlet is provided on the drainage pipe, a drainage outlet is provided on the outer edge of the drainage pipe, and the drainage outlet is provided on the side opposite to the rotation direction of the wind wheel structure.

4. The wind power generation device according to claim 1, characterized in that: The vertical axis transmission structure comprises: Support base; A motor, the motor is arranged on the support base and connected to the support base; A transmission mechanism, the transmission mechanism is arranged above the motor and connected to the motor shaft of the motor, and the transmission mechanism is connected to the wind wheel assembly; A magnetic bearing is disposed between the support base and the wind wheel assembly, and is connected to both the support base and the wind wheel assembly.

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