Vertical axis wind turbine

Abstract

The utility model discloses a vertical axis wind driven generator, and relates to the technical field of wind driven generators. The vertical axis wind turbine includes: a central axis; the resistance type wind wheel and the lift type wind wheel are arranged on the central shaft and can rotate around the axis of the central shaft; the rotation direction of the resistance type wind wheel is opposite to that of the lift type wind wheel; the winding rotor is arranged on the resistance type wind wheel; and the magnetic resistance rotor is arranged on the lift type wind wheel, and the magnetic resistance rotor is movably connected to the outer portion of the winding rotor in a sleeving mode. According to the generator provided by the invention, under the action of wind power, the winding rotor and the reluctance rotor rotate in opposite directions, that is, the rotating speed of the generator is the sum of the rotating speeds of the lift-type wind wheel and the resistance-type wind wheel, so that the power generation efficiency of the vertical-axis wind generator can be greatly improved. Under the condition that the vertical-axis wind turbine is not affected by the wind direction, the adaptability of the vertical-axis wind turbine in the whole scene from the low wind speed to the high wind speed can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of wind turbines, and in particular to a vertical axis wind turbine. Background Art

[0002] As a highly efficient wind energy conversion device, vertical axis wind turbines are not affected by wind direction and occupy a small space. They have broad application prospects in the field of low-grade and low-wind energy collection. The vertical axis wind turbines in the prior art include lift-type wind turbines and resistance-type wind turbines. Lift-type wind turbines have high power generation efficiency, but it is difficult to utilize wind energy with lower wind speeds; resistance-type wind turbines can utilize wind energy with lower wind speeds, but have low power generation efficiency. In other words, the existing vertical axis wind turbines are difficult to apply to application scenarios with different wind speeds. Utility Model Content

[0003] The purpose of the present application is to provide a vertical axis wind turbine to solve the technical problem of poor adaptability of the vertical axis wind turbine in the prior art.

[0004] To achieve the above objectives, this application provides the following technical solutions:

[0005] A vertical axis wind turbine comprises: a central axis; a resistance type wind wheel and a lift type wind wheel, both of which are arranged on the central axis and can rotate around the axis line of the central axis; the rotation direction of the resistance type wind wheel is opposite to the rotation direction of the lift type wind wheel; a winding rotor, which is arranged on the resistance type wind wheel; a reluctance rotor, which is arranged on the lift type wind wheel, and the reluctance rotor is movably sleeved on the outside of the winding rotor.

[0006] As a specific solution in the technical solution of this application, the resistance type wind wheel includes:

[0007] A plurality of first bearings; each first bearing is arranged on the central axis along the axial direction of the central axis;

[0008] A plurality of resistance blades; each resistance blade is evenly distributed axially around the central axis, and each resistance blade is connected to each first bearing.

[0009] As a specific solution in the technical solution of this application, the resistance type wind wheel includes:

[0010] A plurality of first bearings; each first bearing is arranged on the central axis along the axial direction of the central axis;

[0011] A bracket connected to each first bearing;

[0012] A plurality of resistance blades; each resistance blade is evenly distributed axially around the central axis, and each resistance blade is rotatably connected to the bracket;

[0013] The adjusting component is arranged on the bracket and is used for driving each resistance fan blade to rotate.

[0014] As a specific solution in the technical solution of the present application, the adjustment component includes a motor corresponding to each resistance fan blade.

[0015] As a specific solution in the technical solution of the present application, the resistance type wind wheel includes two resistance blades; the adjustment component includes:

[0016] A rotating shaft corresponding to each of the resistance blades; one end of the rotating shaft is rotatably connected to the bracket, and the other end is connected to the corresponding resistance blade; the axis of the rotating shaft is perpendicular to the axis of the central axis;

[0017] A movable block is slidably connected with the bracket in a first direction; the first direction is perpendicular to the axial direction of the central axis;

[0018] A driving member, disposed on the bracket, for driving the movable block to perform linear reciprocating motion;

[0019] Gears and first racks are corresponding to the rotating shafts one by one; the two first racks are connected to the movable block; the gears are arranged on the corresponding rotating shafts, and the gears are meshed with the corresponding first racks.

[0020] As a specific solution in the technical solution of the present application, the driving member includes an electric push rod or a hydraulic push rod; or

[0021] The driving member comprises:

[0022] A threaded rod, threadedly connected to the movable block;

[0023] The motor is arranged on the bracket and is used for driving the threaded rod to rotate in a forward or reverse direction.

[0024] As a specific solution in the technical solution of this application, the adjustment component also includes:

[0025] A counterweight block is arranged on the other side of the central axis opposite to the movable block; the counterweight block and the bracket form a sliding connection along a second direction; the second direction is opposite to the first direction;

[0026] The second racks correspond one to one with the gears, and the two second racks are connected to the counterweight block; the second racks are meshed with the corresponding gears.

[0027] As a specific solution in the technical solution of the present application, the bracket is further provided with at least one guide rod, each guide rod extends along the second direction, and the counterweight block forms a sliding connection with each guide rod along the second direction.

[0028] As a specific solution in the technical solution of this application, the lift-type wind wheel includes:

[0029] A plurality of second bearings; each second bearing is arranged on the central axis along the axial direction of the central axis;

[0030] A plurality of lift blades; each lift blade is evenly distributed axially around the central axis, and each lift blade is connected to each second bearing.

[0031] As a specific solution in the technical solution of the present application, the resistance blades include semicircular blades; the lift blades include straight blades or curved blades.

[0032] Compared with the prior art, the beneficial effects of this application are:

[0033] Under the action of wind, the winding rotor and the reluctance rotor of the vertical axis wind turbine proposed in this application rotate in opposite directions, that is, the rotation speed of the generator is the sum of the rotation speeds of the lift-type wind rotor and the resistance-type wind rotor, which can greatly improve the power generation efficiency of the vertical axis wind turbine. When the vertical axis wind turbine is not affected by wind direction, the adaptability of the vertical axis wind turbine in all scenarios from low wind speed to high wind speed can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A three-dimensional schematic diagram of a vertical axis wind turbine proposed in an embodiment of the present application;

[0035] Figure 2 A three-dimensional schematic diagram of a resistance-type wind wheel proposed in an embodiment of the present application;

[0036] Figure 3 A three-dimensional schematic diagram of another resistance-type wind wheel proposed in an embodiment of the present application;

[0037] Figure 4 A three-dimensional schematic diagram of an adjustment component proposed in an embodiment of the present application;

[0038] Figure 5 A three-dimensional schematic diagram of a lift-type wind wheel proposed in an embodiment of the present application;

[0039] Figure 6 A cross-sectional schematic diagram of a vertical axis wind turbine proposed in an embodiment of the present application (without resistance blades and lift blades);

[0040] Figure 7 This is a schematic diagram of the reverse rotation of a winding rotor and a reluctance rotor proposed in an embodiment of the present application (the line of sight is parallel to the axial direction of the central axis).

[0041] In the figure: 1, central axis; 2, resistance type wind wheel; 21, first bearing; 22, resistance blade; 3, lift type wind wheel; 31, second bearing; 32, support rod; 33, lift blade; 4, winding rotor; 5, reluctance rotor; 6, adjustment assembly; 61, guide rod; 62, rotating shaft; 63, gear; 64, movable block; 65, first rack; 66, threaded rod; 67, motor; 68, counterweight; 69, second rack; 7, bracket. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] It should be noted that, in the description of the present application, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0044] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0045] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0046] Before understanding the embodiments of the vertical axis wind turbine proposed in the present application, it should be clear that the lift-type wind turbine in the prior art, also known as the lift-type wind turbine, mainly relies on the lift force on the lift-type wind wheel to work. The design of this type of wind turbine is usually based on the principle of aerodynamics to optimize the shape and angle of the lift blades, so as to generate lift when the wind flows through the lift blades. Since the lift-type wind turbine can effectively utilize wind energy, the efficiency of the lift-type wind turbine is usually high, especially under conditions of higher wind speeds, the power generation efficiency of the lift-type wind turbine is usually between 25% and 45%. However, under low wind speed conditions, if the lift force on the lift-type wind wheel is not enough to overcome the torque of the lift-type wind turbine to start, the lift-type wind turbine cannot be started, that is, the power generation efficiency of the lift-type wind turbine is low under low wind speed conditions. In the prior art, the resistance-type wind turbine mainly relies on the resistance difference generated by the wind to drive the resistance-type wind wheel to rotate and generate electricity. Since resistance-type wind turbines do not need to rely on complex fluid dynamics to start, they perform well under low wind speed conditions. However, as the speed of the resistance-type wind turbine increases, the resistance of the resistance blades will decrease sharply, while the lift will increase. Therefore, under high wind speed conditions, the efficiency of resistance-type wind turbines is usually lower than that of lift-type wind turbines. Generally, the power generation efficiency of resistance-type wind turbines under high wind speed conditions is usually between 5% and 20%.

[0047] In order to solve the technical problem that the existing vertical axis wind turbine generator is difficult to be applied to different wind speed application scenarios as mentioned in the background technology, the present application proposes a vertical axis wind turbine generator, which includes a central axis 1, a resistance type wind rotor 2, a lift type wind rotor 3, a winding rotor 4 and a reluctance rotor 5. Figure 1 As shown in the figure, the resistance type wind wheel 2 and the lift type wind wheel 3 are both arranged on the central axis 1, and both can rotate around the axis of the central axis 1. The rotation direction of the resistance type wind wheel 2 is opposite to that of the lift type wind wheel 3. The winding rotor 4 is arranged on the resistance type wind wheel 2. The reluctance rotor 5 is arranged on the lift type wind wheel 3, and the reluctance rotor 5 is movably sleeved on the outside of the winding rotor 4. Since the rotation direction of the resistance type wind wheel 2 is opposite to that of the lift type wind wheel 3, as shown in the figure, Figure 7 The rotation direction of the winding rotor 4 shown (i.e. Figure 7 The rotation direction B) shown in FIG. 1 is the same as the rotation direction of the reluctance rotor 5 (ie, Figure 7 The rotation direction A) shown is also opposite, that is, the winding rotor 4 and the reluctance rotor 5 can rotate to generate electricity.

[0048] It should be clear that in the embodiment of the present application, the rotation direction of the resistance type wind wheel 2 is opposite to the rotation direction of the lift type wind wheel 3, which means that if the resistance type wind wheel 2 rotates clockwise, the lift type wind wheel 3 rotates counterclockwise; if the resistance type wind wheel 2 rotates counterclockwise, the lift type wind wheel 3 rotates clockwise.

[0049] In an embodiment of the present application, by combining a resistance-type wind rotor and a lift-type wind rotor in the same wind turbine, the advantages of both wind rotors can be fully utilized. Under low wind speed conditions, the resistance-type wind rotor can start generating electricity first, and as the wind speed increases, the efficiency of the lift-type wind rotor gradually increases and begins to play a greater role. This design enables the wind turbine to operate stably over a wide range of wind speeds, providing continuous power output in both light and strong wind conditions. In addition, this combination also helps to stabilize the output power curve of the wind turbine and reduce power fluctuations caused by wind speed fluctuations, thereby improving the stability of the power grid and the overall performance of the generator.

[0050] Compared with the vertical axis wind turbine in the prior art, Figure 1 As shown, in the embodiment of the present application, the resistance-type wind wheel and the lift-type wind wheel are arranged on the central axis in a nested manner, which can save space, improve wind energy utilization, and reduce installation costs.

[0051] It should be clear that under the action of wind, the winding rotor and the reluctance rotor of the vertical axis wind turbine proposed in the embodiment of the present application rotate in opposite directions, that is, the rotation speed of the generator is the sum of the rotation speeds of the lift-type wind rotor and the resistance-type wind rotor, which can greatly improve the power generation efficiency of the vertical axis wind turbine. When the vertical axis wind turbine is not affected by wind direction, the adaptability of the vertical axis wind turbine in all scenarios from low wind speed to high wind speed can be improved.

[0052] In the embodiment of the present application, there is no restriction on the type of the resistance type wind wheel 2, and it can be any resistance type wind wheel 2 that can be installed on the central axis 1. For example, in the embodiment of the present application, the resistance type wind wheel 2 can be the wind wheel disclosed in the patent application document with publication number CN103233858A and name of valve type vertical axis resistance type wind turbine. Alternatively, in the embodiment of the present application, the resistance type wind wheel 2 can include a plurality of first bearings 21 and a plurality of resistance blades 22. Specifically, as Figure 1 and Figure 2 As shown, each first bearing 21 is arranged on the central axis 1 along the axial direction of the central axis 1. Each resistance blade 22 is evenly distributed around the axial direction of the central axis 1, and each resistance blade 22 is connected to each first bearing 21. In this embodiment, by setting the first bearing 21 and the resistance blade 22, the resistance type wind wheel 2 can rotate around the axis of the central axis 1 with the help of wind force.

[0053] As can be seen from the foregoing, the resistance type wind wheel 2 is driven to rotate mainly by the resistance generated by the wind on the resistance blades 22. It is easy to understand that the greater the wind speed, the greater the resistance to the resistance blades 22. In the case of high wind speed, if the resistance to the resistance type wind wheel 2 is too large, the power generation efficiency of the vertical axis wind turbine will be reduced at the least, and the resistance type wind wheel 2 will be damaged at the worst.

[0054] In order to improve the power generation efficiency of the vertical axis wind turbine under high wind speed conditions and prevent the resistance type wind wheel 2 from being damaged under high wind speed conditions, in one embodiment of the present application, the resistance type wind wheel 2 may include a bracket 7, an adjustment component 6, a plurality of first bearings 21, and a plurality of resistance blades 22. Specifically, Figure 1 As shown, each first bearing 21 is arranged on the central axis 1 along the axial direction of the central axis 1. The bracket 7 is connected to each first bearing 21, that is, the entire bracket 7 can rotate around the axis of the central axis 1 with the help of each first bearing 21. Each resistance blade 22 is evenly distributed around the axial direction of the central axis 1, and each resistance blade 22 is rotatably connected to the bracket 7. The adjustment component 6 is arranged on the bracket 7 to drive each resistance blade 22 to rotate.

[0055] During use, since the resistance blades 22 are arranged on the bracket 7, each resistance blade 22 can rotate around the axis of the central axis 1 under the action of wind. Since each resistance blade 22 is rotatably connected to the bracket 7, the angle of each resistance blade 22 can be adjusted by the adjustment component 6. It is easy to understand that the resistance to the resistance-type wind wheel 2 is positively correlated with the magnitude of the wind speed and the contact area formed by the wind. In other words, the greater the wind speed, the greater the resistance to the resistance-type wind wheel 2; the greater the contact area between the resistance blades 22 and the wind in the resistance-type wind wheel 2, the greater the resistance to the resistance-type wind wheel 2. It is easy to understand that in this embodiment, the angle of each resistance blade 22 is adjusted by the adjustment component 6, and the contact area between the resistance blade 22 and the wind is further controlled, and the resistance to the resistance-type wind wheel 2 is further controlled. It should be clear that since the purpose of adjusting the angle of each resistance blade 22 through the adjustment component 6 is to control the contact area formed by the resistance blade 22 and the wind, the rotation axis of the resistance blade 22 controlled by the adjustment component 6 can be any axis that is not parallel to the axis line of the central axis 1.

[0056] It is easy to understand that in high wind speed application scenarios, the angle of the resistance blades 22 can be adjusted by adjusting the component 6, thereby reducing the resistance of the resistance-type wind wheel 2, so as to improve the power generation efficiency of the vertical axis wind turbine and avoid damage to the resistance-type wind wheel 2. In low wind speed application scenarios, the angle of the resistance blades 22 can be adjusted by adjusting the component 6, thereby increasing the resistance of the resistance-type wind wheel 2, so that the vertical axis wind turbine can work normally.

[0057] It should be clear that in the embodiments of the present application, the adjustment component 6 can be any component that can adjust the angle of the resistance blades 22. For example, in one embodiment of the present application, the adjustment component 6 may include a motor (not shown in the figure) corresponding to each resistance blade 22. When in use, the motor is used to adjust the angle of the corresponding resistance blade 22. In another embodiment of the present application, the resistance-type wind wheel 2 includes two resistance blades 22. The adjustment component 6 may include a movable block 64, a driving member, a rotating shaft 62 corresponding to the resistance blades 22, a gear 63 corresponding to the rotating shaft 62, and a first rack 65. Specifically, as Figure 3 As shown, one end of the rotating shaft 62 is rotatably connected to the bracket 7, and the other end is connected to the corresponding resistance blade 22. The movable block 64 is slidably connected to the bracket 7 along the first direction; the first direction is perpendicular to the axial direction of the central axis 1. The driving member is arranged on the bracket 7, and is used to drive the movable block 64 to perform linear reciprocating motion. Two first racks 65 are connected to the movable block 64, and the gear 63 is arranged on the corresponding rotating shaft 62, and the gear 63 is meshed with the corresponding first rack 65.

[0058] When using, Figure 3 As shown, the movable block 64 is controlled by the driving member to perform linear motion, and the movable block 64 can further drive the first rack 65 to perform linear motion, and the first rack 65 further drives the corresponding gear 63 to rotate, and the gear 63 further drives the corresponding shaft 62 to rotate, and the shaft 62 further drives the corresponding resistance blade 22 to rotate, that is, the angle of the resistance blade 22 is adjusted. In the embodiment of the present application, the axis of the shaft 62 can be perpendicular to the axis of the central axis 1.

[0059] In the embodiments of the present application, there is no restriction on the driving member, that is, the driving member can be any component that can perform linear reciprocating motion. For example, in one embodiment of the present application, the driving member can be an electric push rod or a hydraulic push rod; in another embodiment of the present application, the driving member can include a threaded rod 66 and a motor 67. Figure 3 As shown, the threaded rod 66 is threadedly connected to the movable block 64. The motor 67 is arranged on the bracket 7, and is used to drive the threaded rod 66 to rotate in a positive or reverse direction. When in use, the threaded rod 66 is driven to rotate by the motor 67, and the rotating threaded rod 66 can drive the movable block 64 to perform linear motion along the axial direction of the threaded rod 66.

[0060] It should be understood that the linear motion of the movable block 64 will affect the dynamic balance of the resistance type wind wheel 2. If the dynamic balance of the resistance type wind wheel 2 is poor, the service life of the resistance type wind wheel 2 will be reduced during the long-term use of the vertical axis wind turbine. In order to ensure the service life of the resistance type wind wheel 2, in one embodiment of the present application, the adjustment component 6 also includes a counterweight block 68 and a second rack 69 corresponding to the gear 63. Figure 4 As shown, the counterweight block 68 is disposed on the other side of the central axis 1 opposite to the movable block 64, and the counterweight block 68 forms a sliding connection with the bracket 7 along the second direction, which is opposite to the first direction. Two second racks 69 are connected to the counterweight block 68, and the second racks 69 are meshed with the corresponding gears 63.

[0061] When in use, if the movable block 64 is driven by the driving member to perform linear motion in the first direction, then under the action of the gear 63, the corresponding second rack 69 will perform linear motion in the second direction, and further the second rack 69 drives the counterweight block 68 to perform linear motion in the second direction. Since the first direction is opposite to the second direction, that is, the moving directions of the movable block 64 and the counterweight block 68 are always opposite. In other words, in this embodiment, by setting the counterweight block 68 with the opposite moving direction to the movable block 64, it is always possible to ensure that the resistance type wind wheel 2 is in a state of dynamic balance, thereby ensuring the service life of the resistance type wind wheel 2.

[0062] In order to ensure that the counterweight 68 can stably move along the second direction, in the embodiment of the present application, the bracket 7 is further provided with at least one guide rod 61, each of which extends along the second direction, and the counterweight 68 forms a sliding connection with each of the guide rods 61 along the second direction. The provision of the guide rods 61 can ensure that the counterweight 68 can stably move along the second direction.

[0063] It should be clear that in the embodiment of the present application, there is no restriction on the type of the lift-type wind wheel 3, and it can be any lift-type wind wheel 3 that can be installed on the central axis 1. For example, in the embodiment of the present application, the lift-type wind wheel 3 can be the wind wheel disclosed in the patent application document with publication number CN114450480A and name Lift-type Vertical Axis Wind Water Wheel. Alternatively, in the embodiment of the present application, the lift-type wind wheel 3 can include a plurality of second bearings 31 and a plurality of lift blades 33. Among them, if Figure 5 As shown, each second bearing 31 is disposed on the central axis 1 along the axial direction of the central axis 1 . Each lift blade 33 is evenly distributed around the axial direction of the central axis 1 , and each lift blade 33 is connected to each second bearing 31 .

[0064] In order to ensure that the resistance blades 22 and the lift blades 33 do not interfere with each other during rotation, that is, to ensure that the resistance blades 22 and the lift blades 33 have a sufficient distance in the radial direction of the central axis 1. Figure 5 As shown, each second bearing 31 is also provided with a support rod 32 corresponding to each lift blade 33. One end of each support rod 32 is connected to the second bearing 31, and the other end of each support rod 32 is connected to the corresponding lift blade 33. The support rod 32 can ensure that there is a sufficient distance between the resistance blade 22 and the lift blade 33, and no motion interference occurs.

[0065] In order to prevent the resistance-type wind wheel 2 and the lift-type wind wheel 3 from rotating in the same direction, in the embodiment of the present application, the first bearing 21 and the second bearing 31 may be one-way rotating bearings.

[0066] The embodiment of the present application allows the resistance-type wind wheel 2 and the lift-type wind wheel 3 to rotate in opposite directions respectively by means of the first bearing 21 and the second bearing 31 which can only rotate in one direction. The relative rotation speed of the winding rotor 4 and the reluctance rotor 5 is increased, and the power generation capacity of the vertical axis wind turbine is increased. At low wind speeds, the resistance-type wind wheel 2 mainly rotates, and the resistance-type wind wheel 2 bears most of the wind pressure. As the wind speed increases, the lift-type wind wheel 3 gradually increases its rotation speed. As the lift-type wind wheel 3 rotates, the airflow is disturbed, and the wind pressure borne by the resistance-type wind wheel 2 is reduced, thereby optimizing the windward pressure of the entire vertical axis wind turbine. That is to say, in the embodiment of the present application, the vertical axis wind turbine can have a relatively high rotation speed at both low and high wind speeds.

[0067] In the embodiment of the present application, there is no restriction on the shape and structure of the resistance blade 22. For example, in the embodiment of the present application, the resistance blade 22 may be a blade disclosed in the patent application document with publication number CN103233858A and the name of the valve-type vertical axis resistance type wind turbine, or may be a blade disclosed in the patent application document ... resistance type wind turbine, or may be a blade disclosed in the patent application document CN103233858A and the name of the resistance type wind turbine, or may be a blade disclosed in the patent application document CN103233858A and the name of the resistance type wind turbine, or may be a Figure 2 and Figure 3 The semicircular blades shown.

[0068] In the embodiment of the present application, there is no restriction on the shape and structure of the lift blade 33. For example, in the embodiment of the present application, the lift blade 33 may be a curved blade as disclosed in the patent application document with publication number CN114450480A and titled Lift-Type Vertical Axis Fengshui Car, or may be a curved blade as disclosed in the patent application document CN114450480A and titled Lift-Type Vertical Axis Fengshui Car. Figure 5 Straight blades shown.

[0069] The embodiments of the present application adopt Figure 6The dual rotor structure of the winding rotor 4 and the reluctance rotor 5 shown, compared with the gear structure in the prior art, the embodiment of the present application ensures that while the relative speed of the winding rotor 4 and the reluctance rotor 5 increases, there is no contact between the winding rotor 4 and the reluctance rotor 5, that is, the winding rotor 4 and the reluctance rotor 5 respectively transmit the torque to the central axis 1, which can greatly optimize the torque state on the central axis. That is to say, in the embodiment of the present application, the vertical axis wind turbine can offset part of the shaft torque, reduce the risk of instability of the central axis 1, and improve the stability and service life of the wind turbine. In this way, the wind turbine can adapt to changing wind conditions, maximize the utilization efficiency of wind energy, and maintain the reliability and durability of the equipment. In addition, the vertical axis wind turbine has low requirements on the quality of wind energy, can maintain a high power generation efficiency in any wind speed range, and can be widely used in different wind power generation fields, such as road lights, bus stops, etc.

[0070] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A vertical axis wind turbine, characterized in that: include: Central axis (1); The resistance-type wind wheel (2) and the lift-type wind wheel (3) are both arranged on the central axis (1) and are both capable of rotating around the axis of the central axis (1); the rotation direction of the resistance-type wind wheel (2) is opposite to the rotation direction of the lift-type wind wheel (3); A winding rotor (4) is arranged on the resistance-type wind wheel (2); The reluctance rotor (5) is arranged on the lift-type wind wheel (3), and the reluctance rotor (5) is movably sleeved on the outside of the winding rotor (4).

2. The vertical axis wind turbine according to claim 1, characterized in that: The resistance-type wind wheel (2) comprises: A plurality of first bearings (21); each first bearing (21) is arranged on the central axis (1) along the axial direction of the central axis (1); A plurality of resistance blades (22); each resistance blade (22) is evenly distributed in the axial direction around the central axis (1), and each resistance blade (22) is connected to each first bearing (21).

3. The vertical axis wind turbine according to claim 1, characterized in that: The resistance-type wind wheel (2) comprises: A plurality of first bearings (21); each first bearing (21) is arranged on the central axis (1) along the axial direction of the central axis (1); A bracket (7) connected to each first bearing (21); A plurality of resistance blades (22); each resistance blade (22) is evenly distributed axially around the central axis (1), and each resistance blade (22) is rotatably connected to the bracket (7); The adjustment component (6) is arranged on the bracket (7) and is used to drive each resistance fan blade (22) to rotate.

4. The vertical axis wind turbine according to claim 3, characterized in that: The adjustment component (6) comprises a motor corresponding to each resistance blade (22) one by one.

5. The vertical axis wind turbine according to claim 3, characterized in that: The resistance-type wind wheel (2) comprises two resistance blades (22); the adjustment component (6) comprises: A rotating shaft (62) corresponding to each of the resistance blades (22); one end of the rotating shaft (62) is rotatably connected to the bracket (7), and the other end is connected to the corresponding resistance blade (22); the axis of the rotating shaft (62) is perpendicular to the axis of the central axis (1); A movable block (64) is slidably connected with the bracket (7) along a first direction; the first direction is perpendicular to the axial direction of the central axis (1); A driving member, disposed on the bracket (7), for driving the movable block (64) to perform linear reciprocating motion; A gear (63) and a first rack (65) are respectively corresponding to the rotating shaft (62); the two first racks (65) are both connected to the movable block (64); the gear (63) is arranged on the corresponding rotating shaft (62), and the gear (63) is meshed with the corresponding first rack (65).

6. The vertical axis wind turbine according to claim 5, characterized in that: The driving member includes an electric push rod or a hydraulic push rod; or The driving member comprises: A threaded rod (66) threadably connected to the movable block (64); The motor (67) is arranged on the bracket (7) and is used to drive the threaded rod (66) to rotate in a forward or reverse direction.

7. The vertical axis wind turbine according to claim 5, characterized in that: The adjustment component (6) also includes: A counterweight block (68) is arranged on the other side of the central axis (1) opposite to the movable block (64); the counterweight block (68) and the bracket (7) form a sliding connection along a second direction; the second direction is opposite to the first direction; The second racks (69) correspond one to one with the gears (63), and the two second racks (69) are connected to the counterweight block (68); the second racks (69) are meshed with the corresponding gears (63).

8. The vertical axis wind turbine according to claim 7, characterized in that: The bracket (7) is further provided with at least one guide rod (61), each guide rod (61) extends along the second direction, and the counterweight block (68) is slidably connected with each guide rod (61) along the second direction.

9. The vertical axis wind turbine according to any one of claims 2 to 8, characterized in that: The lift-type wind wheel (3) comprises: A plurality of second bearings (31); each second bearing (31) is arranged on the central axis (1) along the axial direction of the central axis (1); A plurality of lift blades (33); each lift blade (33) is evenly distributed in the axial direction around the central axis (1), and each lift blade (33) is connected to each second bearing (31).

10. The vertical axis wind turbine according to claim 9, characterized in that: The resistance blades (22) include semicircular blades; and the lift blades (33) include straight blades or curved blades.

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