Photovoltaic module for vertical axis wind turbine blade

Abstract

The invention discloses a photovoltaic module for a vertical axis wind turbine blade, and the photovoltaic module comprises a skeleton assembly which comprises a fixed shaft, a movable shaft, a telescopic net rack, a connecting rack and end plates, the movable shaft slides between the end plates, the telescopic net rack is a length-adjustable supporting net rack, and the two ends of the telescopic net rack are connected with the fixed shaft and the movable shaft respectively; the flexible photovoltaic module comprises a flexible module, and a light receiving surface comprises a windward section wound through the joint of the telescopic net rack and the fixed shaft and a leeward part in arc transition connection with the end part of the windward section through a movable shaft; and the driving assembly is in transmission connection with the flexible photovoltaic assembly. According to the photovoltaic assembly for the vertical axis wind turbine blade, the flexible assembly is wound through the fixed shaft and the backlight shaft, the light receiving surface is enlarged, the generating capacity is improved, the driving assembly is in driving connection with the flexible photovoltaic assembly, the length of the photovoltaic assembly is adjusted in cooperation with the telescopic net rack, and therefore the length sizes of the windward section and the leeward section can be adjusted according to wind power; therefore, efficient and safe wind power generation is realized.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic components, and in particular to a photovoltaic component used for vertical axis wind turbine blades. Background Art

[0002] Wind turbine blades are an important component of a wind power generation system. Their main function is to capture wind energy to drive a generator to generate electricity. In order to increase power generation and realize multiple forms of power generation, the prior art, such as the Chinese utility model patent with announcement number CN217406440U, discloses a wind-solar power generation device, in which a photovoltaic module is set on a blade module using an adhesive layer. The photovoltaic module, inverter and energy storage battery are electrically connected in sequence. While realizing photovoltaic power generation, the blade module rotates to generate mechanical energy, which is converted into kinetic energy through a generator. Compared with single photovoltaic power generation and wind power generation, it improves resource utilization, achieves energy conservation and environmental protection, and improves economic benefits.

[0003] However, in the above-mentioned power generation device, since the photovoltaic components are adhered to the blade components through an adhesive layer, after long-term use, they are easily separated from the blade components due to the influence of sunlight, wind and temperature changes, affecting normal photovoltaic power generation and wind power generation; not only that, the photovoltaic components are only arranged on the windward section of the blade, and the light-receiving surface is limited. When sunlight is irradiated from the leeward section of the blade, the power generation efficiency of the photovoltaic components is low; in addition, the width of the windward section of the blade assembly is fixed, and the width of the blade assembly cannot be adjusted according to the current wind force. As a result, when the wind is too strong, although the overly wide blades can capture wind energy more effectively, they are easy to cause overload and damage to the generator, affecting the safety of wind power generation; when the wind is too weak, the overly narrow blades are difficult to effectively capture wind energy, resulting in slow blade rotation speed, affecting power generation efficiency.

[0004] Therefore, it is necessary to improve the photovoltaic components used for wind turbine blades in the prior art. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects existing in the prior art and to provide a photovoltaic component for vertical axis wind turbine blades that increases the light receiving area to improve photovoltaic power generation, avoids the photovoltaic component from falling off, and can flexibly adjust the width of the wind receiving surface according to wind conditions to ensure safe and efficient wind power generation.

[0006] To achieve the above technical effects, the technical solution of the present invention is: a photovoltaic module for a vertical axis wind turbine blade, comprising: A skeleton assembly, the skeleton assembly comprises a fixed shaft, a movable shaft, a telescopic grid, a connecting frame and an end plate, the movable shaft, the telescopic grid and the end plate are each provided with two and one-to-one correspondence, the fixed shaft and the movable shaft both extend between the end plates in the vertical direction and the axis center line of the fixed shaft and the axis center lines of the two movable shafts are not coplanar, the fixed shaft and the connecting frame are fixed between the end plates, the movable shaft slides between the end plates, the telescopic grid is a vertically arranged supporting grid with adjustable length, the two ends of the telescopic grid are respectively connected to the fixed shaft and the movable shaft, and the connecting frame is used to connect to the input end of the generator; A flexible photovoltaic component, the flexible photovoltaic component is arranged between the end plates, the flexible component includes a flexible component whose width direction is consistent with the axial direction of the fixed shaft, the light-receiving surface of the flexible component is opposite to the fixed shaft and the movable shaft and is tensioned, and the flexible component includes a windward section wound around the connection between the telescopic grid and the fixed shaft and a leeward section connected to the end of the windward section through an arc transition of the movable shaft; A driving assembly is drivingly connected to the flexible photovoltaic assembly to adjust the length of the light-receiving surface.

[0007] Preferably, in order to ensure uniform force on the wind-receiving surface of the flexible component, two fixed shafts are provided, and the fixed shaft, the movable shaft and the telescopic grid are all arranged in mirror symmetry and the mirror symmetry planes coincide.

[0008] Preferably, in order to simplify the structure and reduce the cost, the sliding direction of the movable shaft is parallel to the distribution direction of the movable shaft and is parallel to the leeward section.

[0009] Preferably, in order to ensure that the flexible component is subjected to uniform force and the displacement of the backlight surface through the two movable axes is uniform, the driving component includes a translation unit, the output end of which is located on the mirror symmetry plane of the two telescopic frames and is connected to the end of the flexible component through a transmission rod.

[0010] Preferably, in order to ensure stable deformation of the flexible photovoltaic component, sliders are provided at the end of the movable shaft and on both sides of the end of the flexible photovoltaic component, and a sliding groove is provided on the side of the end plate adjacent to the movable shaft, and the slider slides in cooperation with the sliding groove.

[0011] Preferably, in order to reduce the friction force on the slider when it slides in the slide groove, a rolling element is provided between the slider and the slide groove to reduce the friction force on the slider when it slides on the slide groove.

[0012] Preferably, in order to further reduce the friction force on the slider when sliding in the slide groove, the rolling element is a roller that rotates around its own axis on the slider, and the roller is distributed along the circumferential outer edge of the slider.

[0013] Preferably, in order to ensure that the flexible component can withstand wind pressure and reduce the degree of deformation, the flexible photovoltaic component also includes a flexible buffer layer stacked on the flexible component, and the flexible buffer layer is arranged between the flexible component and the fixed shaft, the movable shaft, and the telescopic frame.

[0014] Preferably, in order to support the flexible component, the telescopic frame includes a fixed sleeve, a movable sleeve and a telescopic component. The fixed sleeve and the movable sleeve are respectively sleeved outside the fixed axis and the movable axis and are rotatable around their own axis centers. The telescopic component is distributed along the axial direction of the fixed axis and the two ends are respectively connected to the fixed sleeve and the movable sleeve. The telescopic component includes a telescopic tube and a telescopic rod with coaxial center lines and length directions perpendicular to the axial direction of the fixed axis. A compression spring is arranged between the telescopic tube and the telescopic rod for driving the two to move away from each other.

[0015] Preferably, in order to increase the structural strength of the telescopic truss, the telescopic truss also includes a reinforcement unit arranged between adjacent telescopic components, the reinforcement unit includes reinforcement vertical rods arranged at intervals along the distribution direction of the fixed sleeve and the movable sleeve, and a hinged connecting rod is arranged between two adjacent vertical rods, and the connecting rod is hinged to the vertical rod.

[0016] In summary, compared with the prior art, the photovoltaic assembly for vertical axis wind turbine blades of the present invention has a flexible assembly wound around a fixed axis and a backlight axis to expand the light-receiving surface and increase the power generation. The driving assembly is connected to the flexible photovoltaic assembly and its own length is adjusted in conjunction with a telescopic grid, thereby being able to adjust the length of the windward section and the leeward section according to the wind force, so as to achieve efficient and safe wind power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 A top view of Figure 3 It is a structural schematic diagram of another use state of the present invention; Figure 4 yes Figure 3 A schematic diagram of the structure from another perspective; Figure 5 yes Figure 3 Side view of Figure 6 yes Figure 5 A magnified view of part A; Figure 7 yes Figure 4 Explosion diagram of Figure 8 yes Figure 4 A top view of Fig. 9 It is a schematic diagram of the connection structure between the connecting frame and the driving assembly of the present invention; Fig.10 yes Fig. 9 Explosion diagram of Fig.11 is a schematic structural diagram of the flexible photovoltaic module of the present invention; Fig.12 yes Fig.11 Explosion diagram of Fig.13 yes Fig.12 A magnified view of part B; Fig.14 It is a schematic diagram of the connection structure between the telescopic grid and the movable shaft 2 of the present invention; Fig.15 yes Fig.14 Explosion diagram of Fig.16 It is a structural schematic diagram of the telescopic grid of the present invention; Fig.17 yes Fig.16 Explosion diagram of In the figure: 1, fixed axis; 11, connecting block; 2, movable axis; 21, slide bar; 22, convex plate; 3, telescopic grid; 31, fixed sleeve; 32, movable sleeve; 33, telescopic assembly; 331, telescopic cylinder; 332, telescopic rod; 333, compression spring; 34, reinforcement unit; 341, reinforcement vertical rod; 342, connecting rod; 343, hinge seat; 344, directional rod; 4, connecting frame; 41, vertical plate; 42, cross bar; 421, strip mouth; 5 , end plate; 51, slide; 6, flexible photovoltaic module; 61, flexible module; 611, light-receiving surface; 612, windward section; 613, leeward section; 62, flexible buffer layer; 63, side sealing strip; 64, end sealing strip; 7, drive assembly; 71, translation unit; 711, motor; 7111, cover plate; 712, screw; 713, screw sleeve; 714, bushing; 72, transmission rod; 8, slider; 81, rolling element; 82, connecting shaft. DETAILED DESCRIPTION

[0018] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0019] like Figure 1-Figure 17 As shown, a photovoltaic assembly for a vertical axis wind turbine blade of the present invention comprises: A skeleton assembly, the skeleton assembly comprises a fixed shaft 1, a movable shaft 2, a telescopic grid 3, a connecting frame 4 and an end plate 5. Two movable shafts 2, telescopic grids 3 and end plates 5 are provided and correspond to each other. The fixed shaft 1 and the movable shaft 2 extend between the end plates 5 in the vertical direction, and the axis center line of the fixed shaft 1 and the axis center lines of the two movable shafts 2 are not coplanar. The fixed shaft 1 and the connecting frame 4 are fixed between the end plates 5, and the movable shaft 2 slides between the end plates 5. The telescopic grid 3 is a vertically arranged supporting grid with adjustable length. The two ends of the telescopic grid 3 are respectively connected to the fixed shaft 1 and the movable shaft 2, and the connecting frame 4 is used to connect to the input end of the generator; The flexible photovoltaic component 6 is arranged between the end plates 5. The flexible component 61 includes a flexible component 61 whose width direction is consistent with the axial direction of the fixed axis 1. The light-receiving surface 611 of the flexible component 61 faces away from the fixed axis 1 and the movable axis 2 and is tensioned. The flexible component 61 includes a windward section 612 wound around the connection between the telescopic grid 3 and the fixed axis 1 and a leeward section 613 connected to the end of the windward section 612 through the movable axis 2 and the arc transition; The driving component 7 is connected to the flexible photovoltaic component 6 in a transmission manner to adjust the length of the light receiving surface 611 .

[0020] In this photovoltaic assembly, the connecting frame 4 of the skeleton assembly is connected to the input end of the generator, the connecting frame 4 is fixedly connected to the end plate 5, the flexible photovoltaic assembly 6 is arranged between the two end plates 5, and the wind-receiving part of the flexible assembly 61 is shaped and supported by the telescopic grid 3 in the skeleton assembly to avoid its excessive deformation. When the external wind blows on the flexible assembly 61, it can drive the flexible photovoltaic assembly 6 and the skeleton assembly to rotate, generate mechanical energy, and provide the generator with electricity.

[0021] Specifically, in the present invention, the two end plates 5 are distributed along the vertical direction and arranged horizontally, the two connecting frames 4 include a vertical plate 41 and three cross bars 42 fixed to one side of the vertical plate 41 and evenly spaced along the vertical direction, the top and bottom ends of the vertical plate 41 are fixedly connected to the two end plates 5 respectively; in the skeleton assembly, the fixed axis 1 and the movable axis 2 both extend along the vertical direction, the two ends of the fixed axis 1 are fixedly connected to the end plates 5 through connecting blocks 11, and the two ends of the movable axis 2 are provided with convex plates 22, which are movable on the plate surface of the end plates 5, the width direction of the flexible photovoltaic assembly 6 is parallel to the axial direction of the fixed axis 1, and the light-receiving surface 611 of the flexible assembly 61 in the flexible photovoltaic assembly 6 is facing away from the fixed axis 1 and the movable axis 2, so as to conveniently receive external sunlight for photovoltaic power generation.

[0022] Moreover, the flexible component 61 is mainly composed of a windward section 612 and two leeward sections 613, wherein the middle part of the windward section 612 is arranged around the connection position with the two telescopic grids 3 through the fixed axis 1, and the two ends are respectively connected with the leeward section 613 by arc transition through two movable axes 2. The windward section 612 is used to withstand external wind force to drive the device to rotate, and the leeward section 613 is facing away from the windward section 612. After adopting the above design, the area of ​​the light-receiving surface 611 of the flexible component 61 is increased, so that both the front and back sides can receive sunlight for photovoltaic power generation, thereby increasing the photovoltaic power generation.

[0023] While generating wind power, the telescopic grid 3 can support the backlight side of the flexible component 61 to prevent the windward section 612 of the flexible component 61 from being deformed due to wind pressure, and the length of the telescopic grid 3 is adjustable, and the driving component 7 is connected to the flexible photovoltaic component 6 to adjust the length of the windward section 612 and the leeward section 613, thereby ensuring efficient and safe wind power generation. Specifically, when the external wind is strong, the driving component 7 is used to increase the length of the two leeward sections 613 and shorten the distance between the two leeward sections 613, such as Figure 3 and Figure 4 As shown, at this time, the telescopic grid 3 and the windward section 612 are shortened in length, so that the overall width of the photovoltaic module is reduced, thereby reducing the wind pressure it bears, increasing the spacing between the fan blades, avoiding overload and damage to the generator caused by high-speed rotation of the fan blades, and achieving safe wind power generation. When the external wind is weak, the length of the two leeward sections 613 is reduced by the driving component 7, and the spacing between the two leeward sections 613 is expanded, as shown in FIG. Figure 1 and Figure 2 As shown, at this time, the telescopic grid 3 and the windward section 612 are both increased in length, thereby increasing the overall width of the photovoltaic module, thereby reducing the spacing between the wind turbine blades, so that the photovoltaic module can more effectively capture wind energy, thereby achieving rotation and generating mechanical energy, which can be converted into electrical energy by the wind turbine, thereby achieving efficient wind power generation.

[0024] In addition, compared with the prior art method of fixing photovoltaic components by bonding, in the present invention, the flexible component 61 is tensioned outside the fixed axis 1 and the movable axis 2, ensuring good contact between the flexible photovoltaic component 6 and the skeleton component, and preventing the flexible photovoltaic component 6 from detaching from the skeleton component.

[0025] A further improvement is that two fixed shafts 1 are provided, and the fixed shaft 1, the movable shaft 2 and the telescopic grid 3 are all arranged in mirror symmetry and the mirror symmetry planes coincide.

[0026] In the present invention, the two fixed shafts 1 are arranged closely together, the connecting block 11 is disc-shaped, and the projections of the two fixed shafts 1 on the horizontal plane are located within the projections of the connecting block 11 on the horizontal plane. Specifically, the projection line of the axis lines of the two fixed shafts 1 and the axis lines of the two movable shafts 2 on the horizontal plane is an isosceles trapezoid, the length of the upper base of the isosceles trapezoid is much smaller than the length of the lower base, and the angle formed by the waist and the lower base is an acute angle less than 15°, so as to reduce the height dimension of the isosceles trapezoid, thereby reducing the overall thickness dimension of the flexible photovoltaic component 6.

[0027] After adopting the above design, the windward section 612 that is wound around the connection between the fixed shaft 1 and the telescopic grid 3 has its windward surface formed by two straight surfaces that are connected by arc transition and are arranged in mirror symmetry. Through the design of the symmetrical structure, the manufacturing process of the photovoltaic module as a blade can be simplified and the cost can be reduced. At the same time, the two straight surfaces with the same size enable the windward section 612 to be subjected to force more evenly and reduce stress concentration, thereby improving the structural strength of the photovoltaic module when used as a wind turbine blade and reducing vibration and noise. The symmetrical design can also improve the aerodynamic performance of the blade, so that it can maintain a high wind energy utilization rate under different wind directions and wind speeds.

[0028] A further improvement is that the sliding direction of the movable shaft 2 is parallel to the distribution direction of the movable shaft 2 and is parallel to the leeward section 613 .

[0029] After adopting the above design, the structure of the photovoltaic component can be simplified and the cost can be reduced. Through the cooperation between the driving component 7 and the telescopic frame 3, it is more conducive to keeping the flexible component 61 in a tensioned state to ensure a good connection between the flexible photovoltaic component 6 and the skeleton component, thereby avoiding the separation of the flexible photovoltaic component 6 and the skeleton component.

[0030] A further improvement is that the flexible photovoltaic component 6 also includes a flexible buffer layer 62 stacked on the flexible component 61, and the flexible buffer layer 62 is arranged between the flexible component 61 and the fixed shaft 1, the movable shaft 2, and the telescopic grid 3.

[0031] Specifically, the flexible buffer layer 62 is a sponge layer. After the sponge layer is arranged between the flexible component 61 and the fixed shaft 1, the movable shaft 2, and the telescopic grid 3, after the windward section 612 is subjected to wind pressure, the sponge layer is used to transmit the pressure to the telescopic grid 3, and the telescopic grid 3 provides good support for the windward section 612 through the sponge layer. The sponge layer can be elastically deformed to buffer the pressure of the windward section 612, thereby preventing the windward section 612 from being deformed due to excessive wind pressure. In addition, the sponge layer can also diffuse the pressure, so that the force on the windward section 612 is uniform and consistent.

[0032] The specific structure of the flexible photovoltaic module 6 is as follows Fig.11 and Fig.12As shown, the flexible photovoltaic component 6 includes a stacked flexible component 61 and a flexible buffer layer 62, the top and bottom surfaces of the flexible component 61 and the flexible buffer layer 62 are fixedly connected with side sealing strips 63, and both ends are fixedly connected with end sealing strips 64, the two side sealing strips 63 and the two end sealing strips 64 are connected end to end in sequence to surround the flexible component 61 and the flexible buffer layer 62, and the two side sealing strips 63 are sealed and fitted with the two end plates 5.

[0033] A further improvement is that the driving assembly 7 includes a translation unit 71 , the output end of which is located on the mirror symmetry plane of the two telescopic grids 3 and is connected to the end of the flexible assembly 61 through a transmission rod 72 .

[0034] After adopting the above structure, the output end of the translation unit 71 moves in a horizontal direction parallel to the mirror symmetry plane, and the transmission rod 72 acts on the end of the flexible component 61, thereby driving the flexible photovoltaic component 6 to deform, changing the length of the windward section 612 and the leeward section 613, so as to achieve efficient and safe wind power generation according to the current wind force.

[0035] Specifically, among the three cross bars 42 of the connecting frame 4, the cross bar 42 located in the middle is a hollow bar, and strip-shaped openings 421 extending along its length direction are arranged on both sides. The translation unit 71 is arranged in the inner cavity of the cross bar 42, and the translation unit 71 includes a motor 711, a screw rod 712, a screw sleeve 713 and a shaft sleeve 714, wherein the motor 711 is fixed to one end of the cross bar 42 away from the vertical plate 41 and is arranged toward the vertical plate 41, and a cover plate 7111 is fixed to one end of the motor 711 away from the vertical plate 41, and the cover plate 7111 is sealed. A cross bar 42 is covered with one end away from the vertical plate 41; the output shaft of the motor 711 is connected to the screw 712 coaxially, the screw 712 is threadedly connected to the screw sleeve 713, the screw sleeve 713 slides on the inner side of the cross bar 42, the end of the screw 712 away from the motor 711 rotates on the inner side of the shaft sleeve 714, the shaft sleeve 714 is fixed in the cross bar 42, and the two ends of the transmission rod 72 are respectively hinged to the screw sleeve 713 and the end sealing strip 64; the axis of the screw 712 is located on the radial stacking distribution surface of the two movable shafts 2 and extends in the horizontal direction.

[0036] After adopting the above structure, the motor 711 is started, driving the screw 712 to rotate, acting on the screw sleeve 713, so that the screw sleeve 713 moves axially along the screw 712, and acts on the end sealing strip 64 through the transmission rod 72, so as to change the shape of the flexible photovoltaic component 6, and then change the length of the windward section 612 and the leeward section 613 in the flexible component 61. Specifically, when the screw sleeve 713 is close to the vertical plate 41, the two transmission rods 72 push the two leeward sections 613 apart, so that the length of the two leeward sections 613 is reduced and the spacing is increased, and accordingly, the length of the windward section 612 is increased, and when the screw 712 is away from the vertical plate 41, the two transmission rods 72 pull the two leeward sections 613 closer, so that the length of the two leeward sections 613 is increased and the spacing is reduced, and accordingly, the length of the windward section 612 is reduced.

[0037] A further improvement is that sliders 8 are provided on both sides of the ends of the movable shaft 2 and the ends of the flexible photovoltaic assembly 6, and a slide groove 51 is provided on a side of the end plate 5 adjacent to the movable shaft 2, and the slider 8 slides in cooperation with the slide groove 51.

[0038] Specifically, the convex plates 22 at both ends of the movable shaft 2 are fixedly connected with a slide bar 21, the length direction of the slide bar 21 is consistent with the distribution direction of the two movable shafts 2 and the extension direction of the slide groove 51, and the slide bar 21 is provided with two sliders 8 distributed at intervals along the length direction of the slide bar 21, and sliders 8 are provided at both ends of the end sealing strip 64. The sliders 8 slide in cooperation with the slide groove 51, thereby ensuring the stable sliding of the movable shaft 2 and the end sealing strip 64 along the extension direction of the slide groove 51.

[0039] A further improvement is that a rolling member 81 is provided between the slider 8 and the slide groove 51 to reduce the friction force on the slider 8 when sliding on the slide groove 51; the rolling member 81 is a roller that rotates around its own axis on the slider 8, and the roller is distributed along the circumferential outer edge of the slider 8.

[0040] Specifically, Figure 6 , Fig.11 , Fig.13 and Fig.14 As shown, the slider 8 is in the shape of a long strip, extending in a length direction parallel to the slide groove 51. The slider 8 has a plurality of rolling units spaced apart along its own length direction. The rolling units include a rolling member 81 rotating on the slider 8 around its own axis. The rolling member 81 is a roller protruding from the outer surface of the slider 8. The rolling member 81 is distributed along the circumferential side wall of the slider 8, and the wheel surface of the rolling member 81 fits the inner wall of the slide groove 51. In this way, there is a gap between the slider 8 and the inner wall of the slide groove 51, and the friction force on the slider 8 when it moves is reduced by the rolling member 81 rolling on the inner wall of the slide groove 51. The slider 8 is fixedly connected to a connecting shaft 82 extending in the vertical direction, and the connecting shaft 82 is fixedly connected to the slide bar 21 or the end sealing strip 64.

[0041] A further improvement is that the telescopic grid 3 includes a fixed sleeve 31, a movable sleeve 32 and a telescopic assembly 33. The fixed sleeve 31 and the movable sleeve 32 are respectively sleeved outside the fixed axis 1 and the movable axis 2 and are rotatably arranged around their own axis center lines. The telescopic assembly 33 is distributed along the axial direction of the fixed axis 1 and the two ends are respectively connected to the fixed sleeve 31 and the movable sleeve 32. The telescopic assembly 33 includes a telescopic cylinder 331 and a telescopic rod 332 with coaxial center lines and length directions perpendicular to the axial direction of the fixed axis 1. A compression spring 333 is arranged between the telescopic cylinder 331 and the telescopic rod 332 for driving the two to move away from each other; the telescopic grid 3 also includes a reinforcement unit 34 arranged between adjacent telescopic assemblies 33. The reinforcement unit 34 includes reinforcement vertical rods 341 arranged at intervals along the distribution direction of the fixed sleeve 31 and the movable sleeve 32, and a hinged connecting rod 342 is arranged between two adjacent vertical rods, and the connecting rod 342 is hinged to the vertical rod.

[0042] The specific structure of the telescopic grid 3 can be referred to Figure 14-17 In the present invention, the telescopic grid 3 is mainly used to shape and support the windward section 612 of the flexible component 61 to prevent it from being deformed due to wind pressure.

[0043] In the telescopic grid 3, the fixed sleeve 31 is sealingly sleeved outside the fixed shaft 1, and its two ends are respectively sealed and fitted with the connecting block 11; the movable sleeve 32 is sealingly sleeved outside the movable shaft 2, and its two ends are respectively sealed and fitted with the convex plate 22, so that the fixed sleeve 31 and the movable sleeve 32 can be conveniently rotated around their own axis to adjust the angle of the telescopic grid 3 according to the length of the windward section 612 and the leeward section 613, and the fixed sleeve 31 and the movable sleeve 32 are both in contact with the flexible buffer layer 62.

[0044] Four telescopic mechanisms are arranged between the fixed sleeve 31 and the movable sleeve 32 and are spaced apart in the vertical direction. The telescopic mechanisms include telescopic assemblies 33 connected in sequence. In the telescopic assemblies 33, one end of the telescopic cylinder 331 adjacent to the fixed axis 1 is closed, and the other end is slidably penetrated by a telescopic rod 332. One end of the telescopic rod 332 close to the fixed axis 1 is connected to the closed end of the telescopic cylinder 331 through a compression spring 333, and the compression spring 333 is arranged in the telescopic cylinder 331.

[0045] The compression spring 333 acts on the telescopic cylinder 331 and the telescopic rod 332 to create a tendency for the two to move away from each other, so as to increase the length of the telescopic grid 3 and ensure that the flexible component 61 is in a tensioned state, thereby achieving a stable connection between the flexible photovoltaic component 6 and the skeleton component.

[0046] The reinforcement unit 34 can be used to increase the structural strength of the telescopic grid 3 , thereby achieving good support for the flexible component 61 and reducing deformation and damage of the flexible component 61 .

[0047] Specifically, in the reinforcement unit 34, the two ends of the reinforcement vertical rod 341 are fixedly connected to the two telescopic cylinders 331 respectively, the end of the reinforcement vertical rod 341 is hinged with a connecting rod 342, and two hinge seats 343 are arranged between adjacent reinforcement vertical rods 341. The end of the connecting rod 342 away from the reinforcement vertical rod 341 is hinged to the hinge seat 343, and a directional rod 344 extending in the vertical direction is sealed and penetrated between the two hinge seats 343. Bosses are fixed at both ends of the directional rod 344 to prevent the directional rod 344 from detaching from the hinge seat 343, thereby ensuring that the rotation angles of the connecting rod 342 between the two adjacent reinforcement vertical rods 341 are the same.

[0048] When the telescopic cylinder 331 and the telescopic rod 332 move relative to each other, the connecting rod 342 between two adjacent reinforcing vertical rods 341 rotates, and the directional rod 344 that is sealed and passes through the two hinge seats 343 is used to ensure that the connecting rod 342 rotates at the same angle. In this way, the reinforcing vertical rod 341, the connecting rod 342 and the hinge seat 343 in the reinforcement unit 34 can assist the telescopic component 33, and support the windward section 612 of the flexible component 61 through the flexible buffer layer 62, reduce its deformation, and ensure that the windward section 612 can withstand wind pressure, so that the photovoltaic component can rotate to generate mechanical energy and realize wind power generation.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A photovoltaic module for a vertical axis wind turbine blade, characterized in that: include: A skeleton component, the skeleton component comprising a fixed shaft (1), a movable shaft (2), a telescopic grid (3), a connecting frame (4) and an end plate (5), wherein the movable shaft (2), the telescopic grid (3) and the end plate (5) are each provided with two and correspond to each other, the fixed shaft (1) and the movable shaft (2) both extend between the end plates (5) in a vertical direction, and the axis centerline of the fixed shaft (1) and the axis centerlines of the two movable shafts (2) are not coplanar, the fixed shaft (1) and the connecting frame (4) are fixed between the end plates (5), the movable shaft (2) slides between the end plates (5), the telescopic grid (3) is a supporting grid arranged vertically and having adjustable length, the two ends of the telescopic grid (3) are respectively connected to the fixed shaft (1) and the movable shaft (2), and the connecting frame (4) is used to be connected to the input end of the generator; A flexible photovoltaic component (6), the flexible photovoltaic component (6) being arranged between the end plates (5), the flexible component (61) comprising a flexible component (61) whose width direction is consistent with the axial direction of the fixed shaft (1), the light-receiving surface (611) of the flexible component (61) facing away from the fixed shaft (1) and the movable shaft (2) and being arranged in a tensioned manner, the flexible component (61) comprising a windward section (612) arranged around the connection between the telescopic grid (3) and the fixed shaft (1) and a leeward section (613) connected to the end of the windward section (612) through an arc transition of the movable shaft (2); A driving component (7), the driving component (7) being drivingly connected to the flexible photovoltaic component (6) to adjust the length of the light receiving surface (611).

2. The photovoltaic assembly for a vertical axis wind turbine blade according to claim 1, characterized in that: Two fixed shafts (1) are provided, and the fixed shaft (1), the movable shaft (2) and the telescopic grid (3) are all arranged in mirror symmetry, and the mirror symmetry planes coincide.

3. The photovoltaic assembly for vertical axis wind turbine blades according to claim 2, characterized in that: The sliding direction of the movable shaft (2) is parallel to the distribution direction of the movable shaft (2) and is parallel to the leeward section (613).

4. The photovoltaic assembly for vertical axis wind turbine blades according to claim 3, characterized in that: The driving assembly (7) comprises a translation unit (71), the output end of the translation unit (71) being located on the mirror symmetry plane of the two telescopic grids (3) and connected to the end of the flexible assembly (61) via a transmission rod (72).

5. The photovoltaic assembly for a vertical axis wind turbine blade according to claim 1, characterized in that: Slide blocks (8) are provided on both sides of the ends of the movable shaft (2) and the ends of the flexible photovoltaic assembly (6); a slide groove (51) is provided on a surface of the end plate (5) adjacent to the movable shaft (2); and the slide block (8) is slidably matched with the slide groove (51).

6. The photovoltaic assembly for vertical axis wind turbine blades according to claim 5, characterized in that: A rolling element (81) is provided between the slider (8) and the slide groove (51) to reduce the friction force exerted on the slider (8) when sliding on the slide groove (51).

7. The photovoltaic assembly for a vertical axis wind turbine blade according to claim 6, characterized in that: The rolling element (81) is a roller that rotates on the slider (8) around its own axis, and the roller is distributed along the circumferential outer edge of the slider (8).

8. The photovoltaic assembly for a vertical axis wind turbine blade according to claim 1, characterized in that: The flexible photovoltaic component (6) further comprises a flexible buffer layer (62) stacked on the flexible component (61), and the flexible buffer layer (62) is arranged between the flexible component (61) and the fixed shaft (1), the movable shaft (2), and the telescopic grid (3).

9. The photovoltaic assembly for a vertical axis wind turbine blade according to claim 1, characterized in that: The telescopic grid (3) comprises a fixed sleeve (31), a movable sleeve (32) and a telescopic assembly (33); the fixed sleeve (31) and the movable sleeve (32) are respectively sleeved outside the fixed shaft (1) and outside the movable shaft (2) and are arranged to rotate around their own axis; the telescopic assembly (33) is distributed along the axial direction of the fixed shaft (1) and its two ends are respectively connected to the fixed sleeve (31) and the movable sleeve (32); the telescopic assembly (33) comprises a telescopic cylinder (331) and a telescopic rod (332) having coaxial center lines and length directions perpendicular to the axial direction of the fixed shaft (1); a compression spring (333) is arranged between the telescopic cylinder (331) and the telescopic rod (332) for driving the two to move away from each other.

10. The photovoltaic assembly for a vertical axis wind turbine blade according to claim 9, characterized in that: The telescopic grid (3) further comprises a reinforcement unit (34) arranged between adjacent telescopic components (33), the reinforcement unit (34) comprising reinforcement vertical rods (341) arranged at intervals along the distribution direction of the fixed sleeve (31) and the movable sleeve (32), a hinged connecting rod (342) being arranged between two adjacent vertical rods, the connecting rod (342) being hinged to the vertical rod.

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