A type of lift-type wind turbine

Abstract

This invention discloses a lift-type wind turbine, including a turbine head. A hub is rotatably mounted at the front end of the turbine head, and two blades are fixed to the hub. A tail fin is located at the rear end of the turbine head. The lift-type wind turbine also includes a lifting rod, on which the turbine head is rotatably mounted. A guide rod is fixed to the lower end of the turbine head, and a guide wheel is rotatably mounted at the lower end of the guide rod. A helical track is fixed to the outer side of the lifting rod, and the guide wheel rolls along the helical track. A guide groove is connected to the lower end of the helical track, and the guide rod slides up and down along the guide groove. Compared with the prior art, this invention, by setting up a helical track, guide wheel, guide rod, and guide groove, ensures that the tail fin's attitude is controllably positioned between two photovoltaic panels. This effectively shortens the distance between the two photovoltaic panels, thereby increasing the installation area of ​​the photovoltaic panels, making full use of three-dimensional space to generate more electricity, saving land resources, and improving photovoltaic power generation efficiency.

Description

Technical Field

[0001] This invention relates to the field of energy utilization technology, and in particular to a lift-type wind turbine. Background Technology

[0002] Wind and solar energy are inexhaustible, renewable, and clean energy sources. Power generation from wind and solar energy offers advantages such as renewable energy, low generation costs, and zero pollution. However, both wind and solar power generation are significantly affected by natural conditions. Therefore, wind power generation is typically combined with photovoltaic (PV) panels. The PV panels generate electricity when there is sunlight, and the wind power generates electricity when there is wind but no sunlight. This leverages the advantages of each while avoiding their respective disadvantages, saving land resources, fully utilizing natural resources, improving power generation efficiency, and increasing electricity output. When wind and solar power are combined, the wind turbine blades are positioned above the PV panels. However, this structure is prone to causing hotspot effects (under certain conditions, a shaded solar cell module in a series circuit will act as a load, consuming the energy generated by other illuminated solar cell modules. The shaded solar cell module will then heat up, which is the hotspot effect). Therefore, a common practice is to lower the wind turbine blades below the PV panels when the wind turbine is not generating electricity, so as not to affect the PV panel's power generation. When the wind turbine is generating electricity, the blades are then raised above the PV panels. However, during the lifting and lowering process, in order to prevent the tail fin of the wind turbine from interfering with the photovoltaic panel, the spacing between the photovoltaic panels at the wind turbine is often set to be greater than the length of the tail fin. This reduces the area of ​​the photovoltaic panel, resulting in a decrease in the power generation of the photovoltaic panel. Summary of the Invention

[0003] This invention provides a liftable wind turbine to solve the technical problem of interference between the tail fin and the photovoltaic panel during the lifting process of a wind turbine in the prior art.

[0004] This invention provides a lift-type wind turbine generator, including a turbine head. A hub is rotatably mounted at the front end of the turbine head, and two blades are fixed to the hub. A tail fin is provided at the rear end of the turbine head. The generator also includes a lifting rod, on which the turbine head is rotatably mounted. A guide rod is fixed to the lower end of the turbine head, and a guide wheel is rotatably mounted at the lower end of the guide rod. A helical track is fixed to the outer side of the lifting rod, and the guide wheel rolls along the helical track. A guide groove is connected to the lower end of the helical track, and the guide rod slides up and down along the guide groove. A positioning mechanism that cooperates with the blades is fixed on the lifting rod. The guide rod is located between the positioning mechanism and the lifting rod. The positioning mechanism drives the blades to be placed laterally when the turbine head descends.

[0005] Preferably, the positioning mechanism includes a positioning block and a positioning seat. The positioning seat is fixed to the upper end of the positioning block. The positioning block contacts the blade below so as to drive the blade to rotate. The two ends of the positioning seat are respectively in contact with the two sides of the front end of the machine head.

[0006] Preferably, the distance between the outer wall of the positioning block and the lifting rod is greater than the distance between the outer wall of the positioning seat and the lifting rod. One end of the positioning seat is in contact with a blade, and the other end of the positioning seat is in contact with the connection between another blade and the hub.

[0007] Preferably, the blade is inclined, and the distance between the end of the blade near the hub and the lifting rod is smaller than the distance between the other end of the blade and the lifting rod.

[0008] Preferably, the positioning block is fixed on the spiral track by a support arm.

[0009] Preferably, the position where the spiral track connects to the guide groove is provided with an arc surface, and the arc surface guides the guide wheel from the spiral track into the guide groove.

[0010] Preferably, the lower end of the machine head is fixed with a positioning post that matches the contour of the upper end of the spiral track, and the guide rod is fixed on the positioning post.

[0011] Preferably, the positioning post and the spiral track fit together to form a cylinder, and the guide groove is provided on the cylinder.

[0012] Preferably, the length of the guide groove is less than the length of the guide rod.

[0013] Preferably, the support arm is fixed to the spiral track by a U-shaped seat.

[0014] Compared to existing technologies, the lifting wind turbine of this invention is primarily installed within photovoltaic power station arrays, forming a wind-solar complementary model. Photovoltaic power generation occurs during the day, while wind power generation occurs during cloudy or rainy nights, thus improving power generation efficiency. The wind turbine's head is raised and lowered via a lifting rod, preventing hot spot effects on the photovoltaic panels during the day. By incorporating a helical track, guide wheels, guide rods, and guide grooves, the tail fin's attitude is controllably positioned between two photovoltaic panels, effectively shortening the distance between them and increasing the installation area. This maximizes the use of vertical space for power generation, conserves land resources, and fully utilizes natural resources, thereby improving photovoltaic power generation efficiency. A positioning mechanism laterally distributes the blades, enabling the wind turbine to be installed even between lower-positioned photovoltaic panels, expanding the application range of the wind turbine. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0018] Figure 3 This is the front view of the present invention;

[0019] Figure 4 This is a right view of the present invention;

[0020] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A;

[0021] Figure 6 This is a schematic diagram of the positioning block driving the blade to rotate according to the present invention;

[0022] Figure 7 This is a schematic diagram of the positional structure of the blade and the positioning block of the present invention;

[0023] Figure 8 This is a schematic diagram showing the position and structure of the wind turbine and photovoltaic panel of the present invention;

[0024] Figure 9 The physical object of the present invention Figure 1 ;

[0025] Figure 10 The physical object of the present invention Figure 2 ;

[0026] Figure 11 The physical object of the present invention Figure 3 .

[0027] Figure label:

[0028] 1. Nose, 11. Hub, 12. Blade, 13. Tail fin, 2. Lifting rod, 3. Positioning mechanism, 31. Positioning block, 32. Positioning seat, 321. First limiting block, 322. Second limiting block, 4. Guide rod, 5. Guide wheel, 6. Spiral track, 7. Guide groove, 8. Support arm, 9. Positioning column, 10. U-shaped seat, 100. Arc surface, 200. Connecting part, 300. Photovoltaic panel. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0030] See attached document Figure 1 A type of lift-type wind turbine includes a turbine head 1, with a hub 11 rotatably mounted at the front end of the turbine head 1. Two blades 12 are fixed to the hub 11. A tail fin 13 is located at the rear end of the turbine head 1. The turbine head 1 is rotatably mounted on the lift-type wind turbine 2. A guide rod 4 is fixed to the lower end of the turbine head 1, and a guide wheel 5 is rotatably mounted at the lower end of the guide rod 4. A helical track 6 is fixed to the outer side of the lift-type wind turbine 2, and the guide wheel 5 rolls along the helical track 6. A guide groove 7 is connected to the lower end of the helical track 6, and the guide rod 4 slides up and down along the guide groove 7. (See attached diagram) Figure 8 The wind turbine is located between two photovoltaic panels 300, with a gap between them. The direction from one photovoltaic panel 300 to the other is defined as the width direction of the gap. When the guide wheel 5 rolls down along the spiral track 6, it drives the turbine head 1 to descend and rotate simultaneously. That is, the tail fin 13 rotates during the descent. When the tail fin 13 arrives between the two photovoltaic panels 300, the width direction of the tail fin 13 is consistent with the width direction of the gap. This allows the gap between the photovoltaic panels 300 to be set according to the width of the tail fin 13, rather than the length of the tail fin 13. This setting can shorten the distance between the two photovoltaic panels 300, increase the installation area of ​​the photovoltaic panels 300, make full use of vertical space to generate more electricity, save land resources and make full use of natural resources, thereby improving power generation efficiency. When the width direction of the tail fin 13 aligns with the width direction of the spacing, the guide wheel 5 enters the guide groove 7, and the guide rod 4 slides downward along the guide groove 7, causing the turbine head 1 to descend. This invention adjusts the attitude of the tail fin 13 through the spiral track 6 and the guide wheel 5; this process is the first stage. The attitude of the tail fin 13 is maintained by the guide rod 4 and the guide groove 7; this process is the second stage. In the first stage, the attitude of the tail fin 13 is adjusted when it is above the photovoltaic panel 300. In the second stage, the tail fin 13 descends and is housed between the two photovoltaic panels 300. The blades 12 on the turbine head 1 are vertically distributed under gravity, and this wind turbine requires the photovoltaic panels 300 to be installed at a sufficiently high position.

[0031] In another embodiment of the present invention: a positioning mechanism 3 that cooperates with the blade 12 is fixed on the lifting rod 2, and a guide rod 4 is located between the positioning mechanism 3 and the lifting rod 2. When the machine head 1 descends, the positioning mechanism 3 drives the blade 12 to be placed laterally. Specifically, when the guide wheel 5 rolls along the spiral track 6 and the guide rod 4 slides along the guide groove 7, the positioning mechanism 3 drives the blade 12 to change from a vertical distribution to a horizontal distribution. (Refer to the attached drawing.) Figure 2 The positioning mechanism 3 positions the blades 12 laterally on the lifting rod 2. This arrangement reduces the height of the blades 12, preventing their shadows from obstructing the photovoltaic panel 300. As the turbine head 1 rises, the restriction on the blades 12 is first lifted, and the blades 12, under gravity, return to a vertical orientation. Then, the turbine head 1 continues to rise until the guide wheel 5 is above the helical track 6. At this point, neither the guide rod 4 nor the guide wheel 5 is restricted by the helical track 6, allowing the turbine head 1 to rotate freely on the lifting rod 2. This means the tail fin 13 can adjust the windward angle of the blades 12 according to the wind direction, ensuring maximum power generation from the wind turbine. The attitude of the tail fin 13 is adjusted during the spiral descent of the turbine head 1. The attitude of the blades 12 undergoes initial adjustment during the spiral descent and final adjustment during the straight descent, ultimately resulting in the blades 12 being laterally positioned on the lifting rod 2. (See attached diagram) Figure 8 Laterally distributed blades 12 are located behind the photovoltaic panels 300. After the turbine head 1 descends, the lateral distribution of blades 12 allows the wind turbine to be installed even between the lower-positioned photovoltaic panels 300. This structural design expands the application range of the wind turbine.

[0032] In another embodiment of the present invention: the positioning mechanism 3 includes a positioning block 31 and a positioning seat 32. The positioning seat 32 is fixed to the upper end of the positioning block 31. The positioning block 31 contacts the lower blade 12 to drive the blade 12 to rotate. The two ends of the positioning seat 32 are respectively in contact with the two sides of the front end of the machine head 1. The guide rod 4 is located between the positioning block 31 and the lifting rod 2, and between the positioning seat 32 and the lifting rod 2. The blade 12 is vertically distributed under the action of gravity. When the machine head 1 spirals down, the lower blade 12 contacts the positioning block 31 first. As the machine head 1 continues to spiral down, the lower blade 12 is blocked by the positioning block 31 and rotates upward. At this time, the blade 12 changes from a vertical state to an inclined state. Then the machine head 1 descends in a straight line. After the blade 12 is tilted to a certain angle, the positioning seat 32 pushes the lower blade 12 to continue to rotate upward until the blade 12 is horizontally distributed on the machine head 1. When the blades 12 are laterally distributed on the head 1, the two sides of the positioning seat 32 are in contact with the two sides of the hub 11, or the two sides of the positioning seat 32 are in contact with the two blades 12. That is, the two sides of the hub 11 are restricted by the two sides of the positioning seat 32, or the two blades 12 are restricted by the two sides of the positioning seat 32. Both of these restriction methods restrict the hub 11 to the positioning seat 32 and prevent it from rotating.

[0033] One embodiment of the positioning block 31 and positioning seat 32 driving the blades 12 to be laterally distributed is as follows: the distance between the outer wall of the positioning block 31 and the lifting rod 2 is greater than the distance between the outer wall of the positioning seat 32 and the lifting rod 2; one end of the positioning seat 32 contacts one blade 12, and the other end of the positioning seat 32 contacts the connection part 200 between another blade 12 and the hub 11. Specifically, the two ends of the positioning seat 32 are respectively provided with a first limiting block 321 and a second limiting block 322, as shown in the attached figure. Figure 3 The first limiting block 321 is in contact with a blade 12. (Exhibited attached) Figure 4 and attached Figure 5 The second limiting block 322 contacts the connection 200 between another blade 12 and the hub 11, and the height of the second limiting block 322 is greater than the height of the first limiting block 321. During the spiral descent and linear descent of the rotor head 1, refer to the attached diagram. Figure 6 The positioning block 31 drives the blade 12 from a vertical state to an inclined state, and then the second limiting block 322 continues to push the blade 12 to rotate by pushing the connecting part 200 until the two blades 12 are laterally distributed above the lifting rod 2.

[0034] As another embodiment of the present invention: refer to the appendix Figure 7 The blade 12 is inclined, and the distance between the end of the blade 12 closest to the hub 11 and the lifting rod 2 is smaller than the distance between the other end of the blade 12 and the lifting rod 2. For example, there is a certain gap between the lower section of the blade 12 and the positioning block 31, allowing it to rotate around the positioning block 31. The middle section of the blade 12 contacts the positioning block 31, and then, under the push of the positioning block 31, the blade 12 rotates from bottom to top, changing from a vertical state to an inclined state. Finally, under the push of the positioning seat 32, it becomes laterally distributed.

[0035] Specifically, the positioning block 31 is fixed to the spiral track 6 by the support arm 8, which is a square tube.

[0036] In another embodiment of the present invention: an arc surface 100 is provided at the position where the spiral track 6 connects with the guide groove 7. The arc surface 100 guides the guide wheel 5 from the spiral track 6 into the guide groove 7. The guide wheel 5 drives the guide rod 4 into the guide groove 7 and then slides down along the guide groove 7. The arc surface 100 plays a transition role between the spiral track 6 and the guide groove 7.

[0037] In another embodiment of the present invention: a positioning post 9 is fixed at the lower end of the machine head 1, which matches the contour of the upper end of the spiral track 6. The positioning post 9 is a cylindrical structure with a cavity, and its outer shell has a spiral cross-section that dynamically matches the spiral track 6. After the positioning post 9 and the spiral track 6 are fitted together, they form a cylinder. A guide groove 7 is provided on the cylinder, and a guide rod 4 is fixed on the positioning post 9. Specifically, the length of the guide groove 7 is less than the length of the guide rod 4.

[0038] Specifically, the support arm 8 is fixed to the spiral track 6 via the U-shaped seat 10.

[0039] In this invention, when there is no sunlight but wind, the lifting rod 2 drives the turbine head 1 to rise, the guide rod 4 slides upward along the guide groove 7, and then the guide wheel 5 leaves the guide groove 7. Finally, the guide wheel 5 is located above the spiral track 6. At this time, the spiral track 6 can no longer restrict the guide wheel 5 and the guide rod 4. Under the action of wind, the tail fin 13 drives the turbine head 1 to rotate around the lifting rod 2, thereby adjusting the windward angle of the blades 12 to achieve the best power generation effect of the wind turbine. When there is sunlight, the lifting rod 2 drives the turbine head 1 to descend. When the guide wheel 5 does not fall on the spiral track 6, the turbine head 1 does not rotate, or the wind pushes the tail fin 13 to drive the turbine head 1 to rotate. The guide wheel 5 falls on the spiral track 6 and rolls along the spiral track 6. At this time, the turbine head 1 descends and rotates at the same time to adjust the attitude of the tail fin 13. When the guide wheel 5 reaches the guide groove 7, the width direction of the tail fin 13 is consistent with the width direction of the spacing between the photovoltaic panels 300. Then the guide rod 4 slides downward along the guide groove 7, and the attitude of the tail fin 13 remains unchanged. As the guide wheel 5 rolls along the spiral track 6 and the guide rod 4 slides along the guide groove 7, the blade 12 is driven by the positioning mechanism 3 from a vertical distribution to a horizontal distribution, thereby lowering the horizontal position of the blade 12. This avoids the shadow of the blade 12 from obscuring the photovoltaic panel 300 and reduces the installation height requirement of the photovoltaic panel 300.

[0040] The lifting wind turbine of this invention is mainly installed in photovoltaic power station arrays, forming a wind-solar complementary mode. Photovoltaic power generation occurs during the day, and wind power generation occurs during cloudy or rainy nights, thereby improving power generation efficiency. The wind turbine's head 1 is raised and lowered via a lifting rod 2, avoiding hot spot effects on the photovoltaic panels 300 during the day. By setting up a spiral track 6, guide wheels 5, guide rods 4, and guide grooves 7, the tail fin 13 is positioned controllably between the two photovoltaic panels 300, effectively shortening the distance between them and increasing the installation area of ​​the photovoltaic panels 300, thus improving photovoltaic power generation efficiency. The positioning mechanism 3 laterally distributes the blades 12, allowing the wind turbine to be installed even between lower-positioned photovoltaic panels 300, expanding the application range of the wind turbine.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A liftable wind turbine generator, comprising a turbine head, wherein a hub is rotatably mounted at the front end of the turbine head, two blades are fixed to the hub, and a tail fin is provided at the rear end of the turbine head, characterized in that, It also includes a lifting rod, on which the machine head is rotatably mounted. A guide rod is fixed to the lower end of the machine head, and a guide wheel is rotatably mounted to the lower end of the guide rod. A spiral track is fixed to the outer side of the lifting rod, and the guide wheel rolls along the spiral track. A guide groove is connected to the lower end of the spiral track, and the guide rod slides up and down along the guide groove. A positioning mechanism that cooperates with the blades is fixed on the lifting rod, and the guide rod is located between the positioning mechanism and the lifting rod. The positioning mechanism drives the blades to be placed laterally when the machine head descends.

2. The lifting wind turbine generator according to claim 1, characterized in that, The positioning mechanism includes a positioning block and a positioning seat. The positioning seat is fixed to the upper end of the positioning block. The positioning block contacts the blade below so as to drive the blade to rotate. The two ends of the positioning seat are respectively in contact with the two sides of the front end of the machine head.

3. The lifting wind turbine generator according to claim 2, characterized in that, The distance between the outer wall of the positioning block and the lifting rod is greater than the distance between the outer wall of the positioning seat and the lifting rod. One end of the positioning seat is in contact with a blade, and the other end of the positioning seat is in contact with the connection between another blade and the hub.

4. The lifting wind turbine generator according to claim 3, characterized in that, The blade is inclined, and the distance between the end of the blade near the hub and the lifting rod is smaller than the distance between the other end of the blade and the lifting rod.

5. The lifting wind turbine generator according to claim 4, characterized in that, The positioning block is fixed on the spiral track by a support arm.

6. The lifting wind turbine generator according to claim 1, characterized in that, The spiral track is provided with an arc surface at the position where it connects to the guide groove, and the arc surface guides the guide wheel from the spiral track into the guide groove.

7. The lifting wind turbine generator according to claim 1, characterized in that, The lower end of the machine head is fixed with a positioning post that matches the contour of the upper end of the spiral track, and the guide rod is fixed on the positioning post.

8. The lifting wind turbine generator according to claim 7, characterized in that, The positioning post and the spiral track fit together to form a cylinder, and the guide groove is set on the cylinder.

9. The lifting wind turbine generator according to claim 8, characterized in that, The length of the guide groove is less than the length of the guide rod.

10. The lifting wind turbine generator according to claim 5, characterized in that, The support arm is fixed to the spiral track by a U-shaped seat.

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