Vertical wind driven generator power device

Abstract

The utility model relates to the technical field of wind power generation, in particular to a power device of a vertical wind driven generator, which realizes the area change of a windward side and a headwind side through the overlying of long fan blade plates and short fan blade plates, and realizes the maximization of the area of the windward side and the minimization of the area of the headwind side. Different stress conditions when wind blows to the windward side and the headwind side are realized; fixed fan blades in the prior art are changed into the curtain type fan blades capable of rotating, the area difference between the windward side and the headwind side is achieved, and self-starting is achieved; the operation of the device is not influenced by the wind direction, and the device can freely operate in any wind direction; the number of maintenance and electric auxiliary systems is small, the fan main shaft is driven to rotate through alternate closing, a load can be driven to rotate by additionally arranging a speed control system, wind energy is converted into mechanical energy, unpowered starting and small-resistance operation of the vertical fan are achieved, and the working efficiency of the vertical fan is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, specifically to a vertical wind turbine power device. Background Technology

[0002] Currently, horizontal axis wind turbines dominate the high-power wind turbine market, while vertical axis wind turbines are plagued by problems such as self-starting, low output power, and low blade efficiency, resulting in a small market share and limited development within the industry. Utility Model Content

[0003] The purpose of this utility model is to provide a vertical wind turbine power device that uses movable curtain-type blades to change the windward and counter-windward sides, thereby achieving high power output.

[0004] This utility model discloses a vertical wind turbine power unit comprising a main shaft, a base, and a curtain-type blade assembly. The lower part of the main shaft is fixedly connected to the base, and the upper part of the main shaft extends vertically upward from the base. The curtain-type blade assembly includes a support frame and curtain-type blades. The support frame includes a central support tube, a top support ring, a bottom support ring, and a vertical support rod. The central support tube, top support ring, and bottom support ring are coaxial. The top support ring is fixed to the outer side of the top end of the central support tube by a rib, and the bottom support ring is fixed to the outer side of the bottom end of the central support tube by a rib. The bottom support ring is located on the top support. Below the ring, multiple vertical support rods are provided. The top of each vertical support rod is fixedly connected to the bottom surface of the top support ring, and the bottom of each vertical support rod is fixedly connected to the top surface of the bottom support ring. These vertical support rods are evenly distributed around the central support tube axis. The vertical plane between the vertical axis of each vertical support rod and the central support tube axis forms a wind-receiving surface. Multiple wind-receiving surfaces are formed between the multiple vertical support rods and the central support tube, each with multiple curtain-type fan blades evenly distributed vertically. Each fan includes a fan shaft, short blades, and long blades. Both short and long blades are arranged along the length of the fan shaft. The short blades are fixedly connected to the outer wall of the top surface of the fan shaft, and the long blades are fixedly connected to the outer wall of the bottom surface of the fan shaft. The short and long blades are arranged on the same plane, with the length of the short blades being less than the length of the long blades. One end of each fan shaft is rotatably connected to a central support tube, and the end of the fan shaft away from the central support tube is rotatably connected to a vertical support rod. In each pair of adjacent curtain-type fan blades on each windward surface, the long blade of the upper curtain-type fan blade overlaps the long blade of the lower curtain-type fan blade. On the side wall of the short blade of the wind turbine, the side where the upper long blade overlaps the lower short blade in each wind-receiving surface is the windward side, and the side behind the windward side is the wind-resistant side. The central support tube is rotatably connected to the upper part of the main shaft extending from the base. The curtain-type wind turbine assembly includes a bottom connecting tube and a power output gear. The bottom connecting tube is fixedly connected to the lower end of the central support tube and is coaxial with the central support tube. The bottom connecting tube is sleeved on the outside of the main shaft. The power output gear is coaxial with the bottom connecting tube and is fixedly connected to the outer wall of the bottom connecting tube. The power output gear is driven by the generator through other gears or gear chains.

[0005] Furthermore, the ribs between the top support ring and the central support tube are top transverse support strips. There are multiple top transverse support strips, which are evenly distributed around the axis of the central support tube. One end of each top transverse support strip is fixedly connected to the inner wall of the top support ring, and the end of each top transverse support strip away from the top support ring is fixedly connected to the top surface of the central support tube.

[0006] Furthermore, the ribs between the bottom support ring and the central support tube are bottom transverse support strips. There are multiple bottom transverse support strips, which are evenly distributed around the axis of the central support tube. One end of each bottom transverse support strip is fixedly connected to the inner wall of the bottom support ring, and the other end of each bottom transverse support strip away from the bottom support ring is fixedly connected to the outer wall of the central support tube.

[0007] Furthermore, the number of the multiple top horizontal support bars, multiple bottom horizontal support bars, and multiple wind-receiving surfaces are the same. The multiple bottom horizontal support bars are respectively located directly below the multiple top horizontal support bars, the top horizontal support bars are located above the wind-receiving surfaces, and the bottom horizontal support bars are located above the wind-receiving surfaces.

[0008] Furthermore, each of the top transverse support bars is fixedly connected to an upper baffle on its bottom surface, and there is a gap between the lower end of the upper baffle and the short blade of the curtain-type wind vane at the uppermost end of the wind-receiving surface.

[0009] Furthermore, a lower baffle is fixedly connected to the top surface of each bottom horizontal support bar, and a long blade of a curtain-type wind vane at the lowest end of the windward side is stacked on the side wall of the lower baffle, with the long blade and the lower baffle overlapping on the windward side.

[0010] Furthermore, both ends of the fan blade shaft extend out with rotating shaft portions; the outer wall of the central support tube is provided with multiple shaft holes I, each shaft hole I corresponding to a multiple curtain-type fan blade; the rotating shaft portion at one end of each fan blade shaft is rotatably connected to a shaft hole I, and a bearing is connected between the rotating shaft portion and the shaft hole I; each vertical support rod is provided with multiple shaft holes II, each shaft hole II on each vertical support rod corresponding to a multiple curtain-type fan blade on a wind-receiving surface; the rotating shaft portion of each fan blade shaft away from the central support tube is rotatably connected to a shaft hole II, and a bearing is rotatably connected between the rotating shaft portion and the shaft hole II.

[0011] Furthermore, a bearing is connected between the inner wall of the central support tube and the outer wall of the main shaft.

[0012] Furthermore, a base vertical tube extends from the top surface of the base, and the lower part of the bottom connecting tube is rotatably connected inside the base vertical tube. A bearing is connected between the outer wall of the bottom connecting tube and the inner wall of the base vertical tube.

[0013] Furthermore, the upper end of the main shaft extends out of the top surface of the support frame, and a support tube is fixedly connected to the upper end of the main shaft, with a rain cap fixedly connected to the top surface of the support tube.

[0014] The beneficial effects of this utility model are as follows: This utility model achieves the area variation of the windward and counter-winding surfaces through the overlapping of long and short blades, maximizing the windward area and minimizing the counter-winding area, thus realizing different force conditions when wind blows towards the windward and counter-winding surfaces; this utility model changes the existing fixed fan blades to rotatable curtain-type blades, realizing the area difference between the windward and counter-winding surfaces and achieving self-starting; this utility model can achieve high power output of the vertical axis wind turbine; the operation of this utility model is not affected by wind direction and can operate freely in any wind direction; this utility model requires less maintenance and electric auxiliary systems, and the alternating closing drive rotates the main shaft of the fan. A speed-changing system can be added to drive the load rotation, converting wind energy into mechanical energy, achieving powerless start-up and low-resistance operation of the vertical fan, significantly improving the working efficiency of the vertical fan. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This utility model Figure 1 AA section view;

[0017] Figure 3 This is a partial structural diagram of the main shaft of this utility model;

[0018] Figure 4 This is a partial structural diagram of the curtain-type fan blade assembly of this utility model;

[0019] Figure 5 This is a schematic diagram of the curtain-type fan blade structure of this utility model;

[0020] Figure 6 This utility model Figure 5 BB section view;

[0021] Figure 7 This is a schematic diagram of the connection between the central support tube and the rotating shaft of this utility model;

[0022] Figure 8 This is a schematic diagram of the connection between the vertical support rod and the rotating shaft of this utility model;

[0023] Figure 9 This is a schematic diagram of the structure of the present invention, showing the overlapping state of multiple curtain-type fan blades when the wind blows towards the windward side;

[0024] Figure 10 This is a schematic diagram of the structure of the present invention, showing the opening and closing states of multiple curtain-type fan blades when the wind blows towards the windward side.

[0025] Figure 11 This is a partial structural diagram of the curtain-type fan blades and the upper baffle when the wind blows towards the windward side.

[0026] Figure 12 This is a partial structural diagram of the curtain-type fan blades and the upper baffle when the wind blows towards the windward side.

[0027] Figure 13 This is a partial structural diagram of the curtain-type fan blades and the lower baffle when the wind blows towards the windward side.

[0028] Figure 14 This is a partial structural diagram of the curtain-type fan blades and the lower baffle when the wind blows towards the opposite wind direction.

[0029] In the diagram: 1. Main shaft; 2. Base; 201. Base vertical tube; 3. Rain cap; 4. Support tube; 5. Curtain-type fan blade assembly; 6. Support frame; 7. Central support tube; 701. Shaft hole I; 8. Top transverse support bar; 9. Bottom transverse support bar; 10. Top support ring; 11. Bottom support ring; 12. Vertical support rod; 1201. Shaft hole II; 13. Curtain-type fan blade; 1301. Fan blade shaft; 1302. Rotating shaft; 1303. Short fan blade plate; 1304. Long fan blade plate; 14. Bottom connecting tube; 15. Power output gear; 16. Upper baffle; 17. Lower baffle. Detailed Implementation

[0030] like Figures 1-14As shown, the present invention discloses a vertical wind turbine power unit comprising a main shaft 1, a base 2, and a curtain-type blade assembly 5. The lower part of the main shaft 1 is fixedly connected to the base 2, and the upper part of the main shaft 1 extends vertically upward from the base 2. The curtain-type blade assembly 5 includes a support frame 6 and curtain-type blades 13. The support frame 6 includes a central support tube 7, a top support ring 10, a bottom support ring 11, and vertical support rods 12. The central support tube 7, the top support ring 10, and the bottom support ring 11 are coaxial. The top support ring 10 is fixed to the outer side of the top of the central support tube 7 by ribs, and the bottom support ring 11 is fixed to the outer side of the bottom of the central support tube 7 by ribs. The bottom support ring 11 is located directly below the top support ring 10. Multiple vertical support rods 12 are provided, each vertically supporting... The top ends of each support rod 12 are fixedly connected to the bottom surface of the top support ring 10, and the bottom ends of each vertical support rod 12 are fixedly connected to the top surface of the bottom support ring 11. Multiple vertical support rods 12 are evenly distributed around the axis of the central support tube 7. The vertical plane between the vertical axis of each vertical support rod 12 and the axis of the central support tube 7 forms a wind-receiving surface. Multiple wind-receiving surfaces are formed between the multiple vertical support rods 12 and the central support tube 7, evenly distributed around the axis of the central support tube 7. Multiple curtain-type wind vanes 13 are linearly and evenly distributed along the vertical direction on each wind-receiving surface. Each curtain-type wind vane 13 includes a wind vane shaft 1301, a short wind vane 1303, and a long wind vane 1304. The short wind vane 1303 and the long wind vane 1304 are all along the length of the wind vane shaft 1301. In terms of direction setting, the short blade 1303 is fixedly connected to the outer wall of the top surface of the blade shaft 1301, and the long blade 1304 is fixedly connected to the outer wall of the bottom surface of the blade shaft 1301. The short blade 1303 and the long blade 1304 are set on the same plane, and the length of the short blade 1303 is less than the length of the long blade 1304. One end of each blade shaft 1301 is rotatably connected to the central support tube 7, and the end of the blade shaft 1301 away from the central support tube 7 is rotatably connected to the vertical support rod 12. In each wind-receiving surface, the long blade 1304 of the upper curtain blade 13 overlaps the side wall of the short blade 1303 of the lower curtain blade 13. In each wind-receiving surface, the upper long blade 1304 overlaps the lower short blade. The side facing 1303 is the windward side, and the side behind the windward side is the leeward side. The central support tube 7 is rotatably connected to the upper part of the main shaft 1 extending from the base 2. The ribs between the top support ring 10 and the central support tube 7 are the top transverse support bars 8. There are multiple top transverse support bars 8, which are evenly distributed around the axis of the central support tube 7. One end of each top transverse support bar 8 is fixedly connected to the inner wall of the top support ring 10, and the end of each top transverse support bar 8 away from the top support ring 10 is fixedly connected to the top surface of the central support tube 7. The ribs between the bottom support ring 11 and the central support tube 7 are the bottom transverse support bars 9. There are multiple bottom transverse support bars 9, which are evenly distributed around the axis of the central support tube 7.Multiple bottom horizontal support bars 9 are fixedly connected at one end to the inner wall of the bottom support ring 11, and at the other end away from the bottom support ring 11 are fixedly connected to the outer wall of the central support tube 7. The number of top horizontal support bars 8, bottom horizontal support bars 9, and wind-receiving surfaces is the same. The bottom horizontal support bars 9 are respectively located directly below the top horizontal support bars 8, the top horizontal support bars 8 are located above the wind-receiving surfaces, and the bottom horizontal support bars 9 are located above the wind-receiving surfaces. The curtain-type fan blade assembly 5 includes a bottom connecting pipe 14 and a power output gear 15. The bottom connecting pipe 14 is fixedly connected to the lower end of the central support tube 7 and is coaxial with the central support tube 7. The bottom connecting pipe 14 is sleeved on the outside of the main shaft 1. The power output gear 15 is coaxial with the bottom connecting pipe 14 and is fixedly connected to the outer wall of the bottom connecting pipe 14. The power output gear 15 is driven by the generator through other gears or a gear chain.

[0031] like Figure 9 As shown, when the wind blows towards the windward side, because the upper long blade 1304 overlaps the side wall of the lower short blade 1303, the wind cannot blow towards the curtain blade 13, thereby maximizing the windward area. The wind blowing towards the windward side causes the curtain blade assembly 5 to rotate. The rotation of the curtain blade assembly 5 drives the bottom connecting pipe 14 and the output gear 15 to rotate. The output gear 15 provides power to the generator through other gears or gear chains to realize vertical wind power generation.

[0032] like Figure 10 As shown, when the wind blows against the wind, the wind force can make the curtain blade 13 rotate. The rotation of the curtain blade 13 breaks the stacking and forms a gap. The wind flows through the gap and will not drive the curtain blade assembly 5 to rotate.

[0033] This invention achieves the change in the area of ​​the windward and reverse sides by stacking the long wind blade 1304 and the short wind blade 1303, thereby maximizing the area of ​​the windward side and minimizing the area of ​​the reverse side, and realizing different force conditions when the wind blows towards the windward and reverse sides.

[0034] In this embodiment, three wind-receiving surfaces are provided, and correspondingly, three top horizontal support bars 8, three bottom horizontal support bars 9, and three vertical support rods 12 are provided.

[0035] In this embodiment, each wind-receiving surface is provided with six curtain-type wind blades 13.

[0036] like Figure 11 and Figure 12As shown, each top horizontal support bar 8 is fixedly connected to an upper baffle 16 on its bottom surface. A gap is provided between the lower end of the upper baffle 16 and the short blade 1303 of the uppermost curtain blade 13 on the windward side. Since there can easily be a large gap between the top horizontal support bar 8 and the uppermost curtain blade 13, the existence of this gap will affect the wind force blowing the curtain blade assembly 5. Therefore, this utility model sets an upper baffle 16 to cover this gap. The gap between the short blades 1303 of the uppermost curtain blade 13 is to ensure that when the wind blows towards the windward side, the uppermost curtain blade 13 can rotate without interfering with the upper baffle 16.

[0037] like Figure 13 and Figure 14 As shown, a lower baffle 17 is fixedly connected to the top surface of each bottom horizontal support bar 9. The long blade 1304 of the curtain-type fan blade 13 at the bottom of the windward side overlaps on the side wall of the lower baffle 17, with the long blade 1304 and the lower baffle 17 overlapping on the windward side. If the lower baffle 17 is not provided, the bottom curtain-type fan blade 13 will rotate when the wind blows towards the windward side, thereby damaging the windward area. Therefore, this utility model provides a lower baffle 17 to control the bottom curtain-type fan blade 13 from rotating when the wind blows towards the windward side. At the same time, the setting of the lower baffle 17 does not affect the normal rotation of the bottom curtain-type fan blade 13 when the wind blows towards the reverse side.

[0038] Both ends of the fan blade shaft 1301 have a rotating shaft portion 1302 extending out; the outer wall of the central support tube 7 is provided with multiple shaft holes I 701, each shaft hole I 701 corresponding to a multiple curtain-type fan blade 13; the rotating shaft portion 1302 at one end of each fan blade shaft 1301 is rotatably connected to a shaft hole I 701, and a bearing is connected between the rotating shaft portion 1302 and the shaft hole I 701; each vertical support rod 12 is provided with multiple shaft holes II 1201, each shaft hole II 1201 on each vertical support rod 12 corresponding to a multiple curtain-type fan blade 13 on a wind-receiving surface; the rotating shaft portion 1302 of each fan blade shaft 1301 away from the central support tube 7 is rotatably connected to a shaft hole II 1201, and a bearing is rotatably connected between the rotating shaft portion 1302 and the shaft hole II 1201.

[0039] A bearing is connected between the inner wall of the central support tube 7 and the outer wall of the main shaft 1. Since the connection between the central support tube 7 and the main shaft 1 has a certain length, it is possible to connect multiple sets of bearings between the inner wall of the central support tube 7 and the outer wall of the main shaft 1 along the length direction.

[0040] A base vertical tube 201 extends from the top surface of the base 2. The lower part of the bottom connecting tube 14 is rotatably connected to the inside of the base vertical tube 201. A bearing is connected between the outer wall of the bottom connecting tube 14 and the inner wall of the base vertical tube 201.

[0041] The use of bearings requires consideration of bearing accessories such as retaining rings and steps, as well as bearing mating structures. The use of bearings and bearing accessories is a common technical method in this field, and will not be described in detail here.

[0042] The upper end of the main shaft 1 extends beyond the top surface of the support frame 6. A support tube 4 is fixedly connected to the upper end of the main shaft 1, and a rain cap 3 is fixedly connected to the top surface of the support tube 4. The rain cap 3 is designed to prevent rainwater from entering the interior of the central support tube 7 and affecting the normal use of this utility model.

[0043] In the design and use of this utility model, it is also considered that the support frame 6 has sufficient structural strength. If necessary, reinforcing ribs can be set between the top surface of the top horizontal support bar 8 and the outer wall of the central support tube 7, and reinforcing ribs can be set between the bottom surface of the bottom horizontal support bar 9 and the outer wall of the central support tube 7.

Claims

1. A vertical wind turbine power unit, characterized in that: The system includes a main shaft (1), a base (2), and a curtain-type fan blade assembly (5). The lower part of the main shaft (1) is fixedly connected to the base (2), and the upper part of the main shaft (1) extends vertically upward from the base (2). The curtain-type fan blade assembly (5) includes a support frame (6) and curtain-type fan blades (13). The support frame (6) includes a central support tube (7), a top support ring (10), a bottom support ring (11), and a vertical support rod (12). The central support tube (7), the top support ring (10), and the bottom support ring (11) are coaxial. The top support ring (10) is fixed to the outer side of the top of the central support tube (7) by a rib. The bottom support ring (11) is fixedly connected to the outer side of the bottom of the central support tube (7) by a rib. The bottom support ring (11) is located on the top support tube. Below the ring (10), there are multiple vertical support rods (12). The top of each vertical support rod (12) is fixedly connected to the bottom surface of the top support ring (10), and the bottom of each vertical support rod (12) is fixedly connected to the top surface of the bottom support ring (11). The multiple vertical support rods (12) are evenly distributed around the axis of the central support tube (7). The vertical plane between the vertical axis of each vertical support rod (12) and the axis of the central support tube (7) forms a wind-receiving surface. The multiple vertical support rods (12) and the central support tube (7) form multiple wind-receiving surfaces evenly distributed around the axis of the central support tube (7). On each wind-receiving surface, multiple curtain-type fan blades (13) are evenly distributed in a vertical direction. Each curtain-type fan blade (13) includes a fan blade. The blade shaft (1301), short blade (1303), and long blade (1304) are arranged along the length of the blade shaft (1301). The short blade (1303) is fixedly connected to the outer wall of the top surface of the blade shaft (1301), and the long blade (1304) is fixedly connected to the outer wall of the bottom surface of the blade shaft (1301). The short blade (1303) and the long blade (1304) are arranged on the same plane. The length of the short blade (1303) is less than the length of the long blade (1304). One end of each blade shaft (1301) is rotatably connected to the central support tube (7), and the end of the blade shaft (1301) away from the central support tube (7) is rotatably connected to the vertical support rod (12). In each wind-receiving surface, the long blade (1304) of the upper curtain blade (13) overlaps the side wall of the short blade (1303) of the lower curtain blade (13). The side of each wind-receiving surface where the upper long blade (1304) overlaps the lower short blade (1303) is the windward side, and the side behind the windward side is the windward side. The central support tube (7) is rotatably connected to the upper part of the main shaft (1) extending out of the base (2). The curtain blade assembly (5) includes a bottom connecting tube (14) and a power output gear (15). The bottom connecting tube (14) is fixedly connected to the lower end of the central support tube (7). The bottom connecting tube (14) is coaxial with the central support tube (7) and is sleeved on the outside of the main shaft (1).The power output gear (15) is coaxial with the bottom connecting tube (14), and is fixedly connected to the outer wall of the bottom connecting tube (14). The power output gear (15) is driven by the generator through other gears or a gear chain.

2. The vertical wind turbine power unit according to claim 1, characterized in that: The ribs between the top support ring (10) and the central support tube (7) are top transverse support strips (8). There are multiple top transverse support strips (8), which are evenly distributed around the axis of the central support tube (7). One end of each top transverse support strip (8) is fixedly connected to the inner wall of the top support ring (10), and the end of each top transverse support strip (8) away from the top support ring (10) is fixedly connected to the top surface of the central support tube (7).

3. A vertical wind turbine power unit according to claim 2, characterized in that: The ribs between the bottom support ring (11) and the central support tube (7) are bottom transverse support strips (9). There are multiple bottom transverse support strips (9). The multiple bottom transverse support strips (9) are evenly distributed around the axis of the central support tube (7). One end of each of the multiple bottom transverse support strips (9) is fixedly connected to the inner wall of the bottom support ring (11), and the end of each of the multiple bottom transverse support strips (9) away from the bottom support ring (11) is fixedly connected to the outer wall of the central support tube (7).

4. A vertical wind turbine power unit according to claim 3, characterized in that: The number of top horizontal support bars (8), bottom horizontal support bars (9) and wind-receiving surfaces are the same. The bottom horizontal support bars (9) are respectively located directly below the top horizontal support bars (8), the top horizontal support bars (8) are located above the wind-receiving surfaces, and the bottom horizontal support bars (9) are located above the wind-receiving surfaces.

5. A vertical wind turbine power unit according to claim 4, characterized in that: Each of the top horizontal support bars (8) is fixedly connected to an upper baffle (16) on its bottom surface. There is a gap between the lower end of the upper baffle (16) and the short blade plate (1303) of the curtain blade (13) at the top of the wind-receiving surface.

6. A vertical wind turbine power unit according to claim 5, characterized in that: Each bottom horizontal support bar (9) is fixedly connected to a lower baffle (17) on its top surface. The long blade (1304) of the curtain blade (13) at the bottom of the windward side overlaps on the side wall of the lower baffle (17). The long blade (1304) and the lower baffle (17) overlap on the windward side.

7. A vertical wind turbine power unit according to any one of claims 1-6, characterized in that: Both ends of the fan blade shaft (1301) have a rotating shaft portion (1302) extending out; the outer wall of the central support tube (7) is provided with multiple shaft holes I (701), each shaft hole I (701) corresponding to a multiple curtain-type fan blades (13), and the rotating shaft portion (1302) at one end of each fan blade shaft (1301) is rotatably connected in a shaft hole I (701), and a bearing is connected between the rotating shaft portion (1302) and the shaft hole I (701); Each vertical support rod (12) is provided with multiple shaft holes II (1201). The multiple shaft holes II (1201) on each vertical support rod (12) correspond one-to-one with multiple curtain-type fan blades (13) on a wind-receiving surface. The rotating shaft part (1302) of each fan blade shaft (1301) away from the central support tube (7) is rotatably connected in a shaft hole II (1201). A bearing is rotatably connected between the rotating shaft part (1302) and the shaft hole II (1201).

8. A vertical wind turbine power unit according to claim 7, characterized in that: A bearing is connected between the inner wall of the central support tube (7) and the outer wall of the main shaft (1).

9. A vertical wind turbine power unit according to claim 8, characterized in that: The base (2) has a base vertical tube (201) extending from its top surface. The bottom connecting tube (14) is rotatably connected to the inside of the base vertical tube (201). A bearing is connected between the outer wall of the bottom connecting tube (14) and the inner wall of the base vertical tube (201).

10. A vertical wind turbine power unit according to any one of claims 1-6, 8 or 9, characterized in that: The upper end of the main shaft (1) extends out of the top surface of the support frame (6), and a support tube (4) is fixedly connected to the upper end of the main shaft (1). A rain cap (3) is fixedly connected to the top surface of the support tube (4).

Images