Wind power generation device
By designing a tilting frame to switch between the cross-flow and axial flow impeller states, the adaptability of wind power generation devices under stationary and mobile conditions is solved, achieving efficient wind energy reception and device compactness, making the wind power generation device adaptable to different environments.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SHANGHAI EJON ELECTROMECHANICAL TECH
- Filing Date
- 2025-01-16
- Publication Date
- 2026-07-02
AI Technical Summary
Existing wind power generation devices cannot adapt to both stationary and mobile operating conditions, resulting in insufficient efficiency and safety in different environments.
A wind power generation device was designed, comprising a storage bin, a tilting device, and a rotor assembly. The device can switch between horizontal and vertical states via a tilting frame, and the cross-flow rotor and axial flow rotor can adapt to different operating conditions, achieving efficient wind energy reception and compact device design.
It enables efficient wind energy reception under both stationary and mobile operating conditions, improving the overall compactness of the device and the efficiency of wind energy utilization, and adapting to the needs of different environments.
Smart Images
Figure CN2025072623_02072026_PF_FP_ABST
Abstract
Description
A wind power generation device Technical Field
[0001] This invention relates to the field of wind power generation equipment technology, and specifically to a wind power generation device. Background Technology
[0002] With the development of renewable energy, wind power, as a clean and renewable energy source, is receiving increasing attention. Traditional wind turbines are adapted to a limited range of operating conditions. When placed at a mobile end, the impeller is usually housed within a casing to prevent it from contacting moving objects; when placed at a stationary end, the impeller is often positioned high up and exposed to the outside.
[0003] However, existing wind power generation facilities cannot make adjustments to accommodate both mobile and stationary operating conditions. Summary of the Invention
[0004] To overcome the shortcomings of the prior art, the present invention provides a wind power generation device that can adapt to both stationary and mobile operating conditions.
[0005] To achieve the above objectives, the present invention provides the following technical solution: A wind power generation device, comprising: a storage compartment with ventilation openings; an impeller assembly including a cross-flow impeller and an axial flow impeller, the cross-flow impeller being rotatably mounted within the storage compartment, the rotation shaft of the cross-flow impeller being vertically positioned; a tilting device including a tilting frame and a driver pulverizingly connected to the tilting frame, the axial flow impeller being rotatably mounted on the tilting frame; and a generator mounted on the tilting frame; the driver is used to drive the tilting frame to switch between a horizontal working state and a vertical working state, wherein: in the horizontal working state, the cross-flow impeller is pulverizingly connected to the generator, and the axial flow impeller is stored within the storage compartment; in the vertical working state, the axial flow impeller is pulverizingly connected to the generator, the rotation shaft of the axial flow impeller is horizontally positioned, and the axial flow impeller is moved outside the storage compartment.
[0006] As can be seen from the above technical solution, the present invention has the following beneficial effects: 1. The present invention provides a wind power generation device, the principle of which is: when the tilting frame is in the horizontal working state, it is for the mobile working condition. At this time, the impeller assembly is completely housed in the housing. The wind entering the housing drives the cross-flow impeller to rotate, thereby driving the axial flow impeller to work. The vertical working state is for the stationary working condition. At this time, the axial flow impeller is driven by the driver to rotate the tilting frame until the axial flow impeller flips out of the housing, and the axial flow impeller rotation shaft is horizontally positioned to receive axial wind energy. Therefore, the wind power generation device in this application can adapt to both stationary and mobile working conditions.
[0007] 2. This invention provides a wind power generation device. Compared with an axial flow impeller, the longitudinal compactness of the cross-flow impeller is higher, and the wind energy receiving efficiency of the axial flow impeller is higher. Therefore, in the horizontal working state, the cross-flow impeller is used to receive wind energy, which can improve the overall longitudinal compactness of the device and avoid excessive wind resistance; in the vertical working state, the axial flow impeller is used to receive wind energy to improve the wind energy receiving efficiency. Attached Figure Description
[0008] Figure 1 is a structural schematic diagram of a wind power generation device according to an embodiment of this application; Figure 2 is a rear view of a wind power generation device according to an embodiment of this application; Figure 3 is a schematic diagram of a wind power generation device in a horizontal working state according to an embodiment of this application; Figure 4 is a schematic diagram of the hidden storage compartment in Figure 3; Figure 5 is a top view corresponding to Figure 4; Figure 6 is a schematic diagram of a wind power generation device in a vertical working state according to an embodiment of this application; Figure 7 is a transmission schematic diagram of the tilting frame in a horizontal working state according to an embodiment of this application; Figure 8 is a transmission schematic diagram of the tilting frame in a vertical working state according to an embodiment of this application; Figure 9 is a schematic diagram of an electromagnetic starting device according to an embodiment of this application; Figure 10 is a structural schematic diagram of a cross-flow impeller according to an embodiment of this application; Figure 11 is a structural schematic diagram of an axial flow impeller according to an embodiment of this application; Figure 12 is a schematic diagram of the operation of a wind direction detection device according to an embodiment of this application; Figure 13 is a schematic diagram of the installation of a roller shutter according to an embodiment of this application.
[0009] Figure 14 is a transmission diagram of the tilting frame in a vertical working state in an embodiment 3 of this application; Figure 15 is a transmission diagram of the tilting frame in a horizontal working state in an embodiment 3 of this application; Figure 16 is a schematic diagram of the sleeve structure between the first transmission shaft and the axial flow impeller in an embodiment 3 of this application.
[0010] In the diagram: 1-Storage compartment; 101-Air inlet; 1011-Guide vane; 102-Air outlet; 11-Roller blind; 111-Curtain shaft; 112-Curtain body; 113-Roller blind motor; 2-Impeller assembly; 21-Cross-flow impeller; 210-Cavity; 211-Protrusion; 2111-Introduction slope; 22-Axial flow impeller; 221-Groove; 3-Tilting device; 31-Tilting frame; 311-Shaft cylinder; 3111-Two-part housing; 312-Gearbox; 3121-Speed gear set; 3122-Front housing; 3123-Rear housing; 313-Guide rail; 3130-Slide groove; 32-Driver; 4-Generator; 41-First drive shaft; 42-Second drive shaft; 43-Bevel gear; 5-Wind direction detection device; 6-Rotating seat; 61-Seat body; 62-Steering drive; 7-Electromagnetic starting device; 71-Drive rotor. Detailed Implementation
[0011] Example 1 A wind power generation device includes: a storage compartment 1 as shown in Figure 1, with ventilation openings on the side wall of the storage compartment 1; an impeller assembly 2 as shown in Figure 5, the impeller assembly 2 includes a cross-flow impeller 21 and an axial flow impeller 22, the cross-flow impeller 21 is rotatably mounted in the storage compartment 1, and the rotation shaft of the cross-flow impeller 21 is vertically arranged; a tilting device 3 as shown in Figure 4, the tilting device 3 includes a tilting frame 31 and a driver 32 that is pulverizedly connected to the tilting frame 31, the axial flow impeller 22 is rotatably mounted on the tilting frame 31; a generator 4, the generator 4 is mounted on the tilting frame 31; the driver 32 is used to drive the tilting frame 31 to switch between a horizontal working state and a vertical working state, wherein: in the horizontal working state, the cross-flow impeller 21 is pulverizedly connected to the generator 4, and the axial flow impeller 22 is stored in the storage compartment 1; When in vertical working state, the axial flow impeller 22 is connected to the generator 4 for transmission, the rotating shaft of the axial flow impeller 22 is set horizontally, and the axial flow impeller 22 moves out of the outside of the storage compartment 1.
[0012] Therefore, the wind power generation device in this embodiment can adapt to both stationary and mobile operating conditions. Compared with the axial flow impeller 22, the longitudinal compactness of the cross-flow impeller 21 is higher than that of the axial flow impeller 22. The efficiency of the axial flow impeller 22 in receiving wind energy is higher than that of the cross-flow impeller 21. Therefore, in the horizontal operating state, the cross-flow impeller 21 is used to receive wind energy, which can improve the overall longitudinal compactness of the device and avoid excessive wind resistance; in the vertical operating state, the axial flow impeller 22 is used to receive wind energy to improve the wind energy reception efficiency.
[0013] Specifically, the storage compartment 1 has an opening at its upper end, which is covered by a roller shutter 11. Raising and lowering the roller shutter 11 allows the opening of the storage compartment 1 to be opened and closed. In the horizontal operating state, the opening of the storage compartment 1 is closed; in the vertical operating state, the opening of the storage compartment 1 is open, and the axial flow impeller 22 extends out of the opening from the outside of the storage compartment 1. In one embodiment, a wind power generation device is installed on a vehicle; the horizontal operating state corresponds to the vehicle being in motion, and the vertical operating state corresponds to the vehicle being parked. In this embodiment, the extension trajectory of the top surface of the storage compartment 1 is a streamlined arc shape with a higher front and lower rear, which reduces wind resistance in the horizontal operating state.
[0014] Referring to Figures 5 and 7, in this embodiment, the cross-flow impeller 21 has a cavity 210 with one axial end open. When in the horizontal working state, the axial flow impeller 22 is disposed in the cavity 210 to improve the compactness of the device in the horizontal working state. During the process of switching from the vertical working state to the horizontal working state, the axial flow impeller 22 enters the cavity 210 from the open end of the cavity 210.
[0015] In this embodiment, the impeller assemblies 2 are arranged in pairs, with the pair of impeller assemblies 2 spaced laterally. Compared to increasing the radial dimension of the impeller, using the paired impeller assemblies 2 arranged laterally at intervals improves power generation efficiency while also enhancing the compactness of the device in the longitudinal direction.
[0016] Referring to Figures 1 and 3, in this embodiment, the ventilation opening includes an air inlet 101 and an air outlet 102 respectively disposed on the front and rear sides of the storage compartment 1. The air inlet 101 is equipped with guide vanes 1011, which are rotatably and adjustablely mounted at the air inlet 101. In the horizontal operating state, air enters the storage compartment 1 from the air inlet 101 and exits from the air outlet 102, driving the cross-flow impeller 21 to rotate during this process. Rotating and adjusting the angle of the guide vanes 101 changes the projection size of the air inlet 101 opening corresponding to the air intake direction, thereby adjusting the air intake volume.
[0017] Furthermore, it also includes a cooling channel 10, the air inlet of which is connected to the outside of the storage compartment 1 on the side facing the wind; the air outlet of the cooling channel 10 is located inside the storage compartment 1. The cooling channel 10 is used to cool the heat-generating components inside the storage compartment 1. Specifically, in this embodiment, the air outlet of the cooling channel 10 faces the gearbox 312; in other embodiments, the air outlet of the cooling channel 10 faces the generator 4.
[0018] As shown in Figures 7 and 8, this embodiment also includes a first drive shaft 41 and a second drive shaft 42. The rotating shafts of the axial impeller 22 and the first drive shaft 41 coincide. The first drive shaft 41 and the second drive shaft 42 are connected by a pair of meshing bevel gears 43. The first drive shaft 41 is used to transmit the torque of the axial impeller 22 or the cross-flow impeller 21 to the second drive shaft 42.
[0019] The tilting frame 31 includes a shaft cylinder 311 and a gearbox 312. The shaft cylinder 311 is connected to one side of the gearbox 312. A second drive shaft 42 is rotatably mounted inside the shaft cylinder 311. The gearbox 312 contains a transmission gear set 3121 that is connected to the generator 4. The end of the second drive shaft 42 away from the first drive shaft 41 is connected to the transmission gear set 3121. In the vertical working state, the end of the shaft cylinder 311 corresponding to the axial flow impeller 22 extends out of the outside of the storage compartment 1, and the gearbox 312 is inside the storage compartment 1. In this embodiment, the second drive shaft 42 serves to raise the axial flow impeller 22 in the vertical working state. In this embodiment, the shaft cylinder 311 includes a pair of interlocking bipartite housings 3111, and the gearbox 312 includes an interlocking front housing 3122 and a rear housing 3123. The pair of bipartite housings 3111 are respectively connected to the front housing 3122 and the rear housing 3123. Based on the above structure, the tilting device 3 has the advantage of being easy to assemble and disassemble.
[0020] Example 2 Based on Example 1, in this example, the axial flow impeller 22 is connected to the generator 4 via a transmission. Specifically, the axial flow impeller 22 is mounted on the first transmission shaft 41.
[0021] When the tilting frame 31 is in a horizontal working state, as shown in Figures 3 to 5 and Figure 7, the cross-flow impeller 21 and the axial flow impeller 22 are coaxially coupled to be connected to the generator 4 for transmission; when the tilting frame 31 is in a vertical working state, the axial flow impeller 22 and the cross-flow impeller 21 are decoupled.
[0022] As shown in Figures 6 and 8, in the vertical working state, the axial flow impeller 22 and the cross-flow impeller 21 are decoupled.
[0023] Referring to Figures 10 and 11, in this embodiment, a connecting structure is provided between the axial flow impeller 22 and the cross-flow impeller 21. The connecting structure includes a protrusion 211 and a groove 221 respectively provided on a pair of connecting bodies. The protrusion 211 and the groove 221 are adapted to each other. When in a horizontal working state, the protrusion 211 is embedded in the groove 221 to transmit torque. In this embodiment, the protrusion 211 is provided on the cross-flow impeller 21, and the groove 221 is provided on the axial flow impeller 22. In other embodiments, the arrangement can be reversed. Specifically, the protrusion 211 is provided at the bottom of the cavity 210. In this embodiment, the cross-sectional shape of the protrusion 211 is rotationally symmetrical, and the circumferential outer edge of the front end of the protrusion 211 is provided with an inlet slope 2111. Based on the above structure, the protrusion 211 is narrower at the front and wider at the back, and the shape of the groove 221 is adapted to the wide end of the protrusion 211. Therefore, during the process of switching from the vertical working state to the horizontal working state, on the one hand, it can ensure that the front end of the protrusion 211 can enter the groove 221; on the other hand, if the circumferential positions of the protrusion 211 and the groove 221 are misaligned, the guide slope 2111 can be brought into contact with the sidewall of the groove 221, allowing the axial flow impeller 22 and the through flow impeller 21 to rotate to corresponding circumferential positions, thus ensuring automatic switching to the horizontal working state. In this embodiment, the cross-sectional shape of the protrusion 211 is generally triangular, with rounded corners corresponding to the included angles of the triangle, and the generatrix of the guide slope 2111 is arc-shaped.
[0024] Based on the above structure, the principle of a wind power generation device is as follows: In the horizontal working state (for mobile applications), the impeller assembly 2 is entirely housed within the storage chamber 1. Wind entering the storage chamber 1 drives the axial impeller 21 to rotate the first drive shaft 41, which in turn drives the second drive shaft 42 to rotate, thus driving the generator 4. In the horizontal working state, the coaxial coupling of the axial impeller 22 and the axial impeller 21 primarily allows the axial impeller 22 to share the power generation transmission system of the axial impeller 21. At this time, the axial impeller 22 can be decoupled from the first drive shaft 41 to reduce the kinetic energy consumption of the axial impeller 22, thereby improving the power generation conversion efficiency of the axial impeller 21. In the vertical working state (for stationary applications), the axial impeller 22 is driven by the driver 32 to rotate the tilting frame 31, tilting the axial impeller 22 out of the storage chamber 1. The rotating shaft of the axial impeller 22, i.e., the first drive shaft 41, is horizontally positioned to receive axial wind energy.
[0025] Example 3 The drawback of Example 2 is that in the horizontal working state, the axial impeller 22 and the cross-flow impeller 21 are coaxially coupled, and at this time the axial impeller 22 does not participate in the function of receiving wind energy, which will lead to the consumption of wind energy.
[0026] To further improve wind energy conversion efficiency, based on Embodiment 1, this embodiment also includes a floating drive device. During the switching process between the horizontal and vertical working states of the tilting frame 31, the floating drive device is used to drive the first drive shaft 41 to move axially, so that: As shown in Figure 15, when the tilting frame 31 is in the horizontal working state, the first drive shaft 41 is coupled with the axial impeller 21 to transmit torque, and the first drive shaft 41 is decoupled from the axial impeller 22; As shown in Figure 14, when the tilting frame 31 is in the vertical working state, the first drive shaft 41 is coupled with the axial impeller 22 to transmit torque, and the first drive shaft 41 is decoupled from the axial impeller 21.
[0027] In this embodiment, the cross-flow impeller 21 is provided with a transmission connecting seat 212. When the tilting frame 31 is in a horizontal working state, the transmission connecting seat 212 and the first transmission shaft 41 are sleeved together to form a transmission body. The transmission body axially passes through the axial flow impeller 22, and the axial flow impeller 22 is provided with a through hole 220 corresponding to the transmission body. Specifically, in this embodiment, when the tilting frame 31 is in a horizontal working state, the transmission connecting seat 212 passes through the through hole 220. In other embodiments, the first transmission shaft 41 can also pass through the through hole 220. In this embodiment, the connection structure between the transmission connecting seat 212 and the first transmission shaft 41 can refer to the connection structure between the axial flow impeller 22 and the cross-flow impeller 21 in Embodiment 2. It should be noted that the transmission connecting component on the first transmission shaft 41, namely the bevel gear 43, is a sliding assembly with the first transmission shaft 41. When the first transmission shaft 41 moves axially, the bevel gear 43 remains axially stationary. Specifically, the shaft sleeve 311 extends to the end away from the gearbox 312 and is provided with an extension sleeve. The first transmission shaft 41 is located inside the extension sleeve, and a bearing is installed inside the extension sleeve. The bevel gear 43 is connected to the inner ring of the bearing.
[0028] In this embodiment, the floating drive device includes a transmission connecting seat 212 and a return spring 431. The return spring 431 axially abuts against the first transmission shaft 41. When the tilting frame 31 is in a vertical working state, the return spring 431 axially presses the first transmission shaft 41 until the first transmission shaft 41 is sleeved with the axial flow impeller 22. When the tilting frame 31 is in a horizontal working state, the transmission connecting seat 212 axially pushes the first transmission shaft 41 until the first transmission shaft 41 separates from the axial flow impeller 22.
[0029] As shown in Figure 16, specifically, a sleeve structure with a concave-convex fit is provided between the first drive shaft 41 and the axial flow impeller 22.
[0030] Example 4, in conjunction with Figures 5 and 12, based on Examples 1, 2, or 3, further includes: a wind direction detection device 5, which is placed outside the storage compartment 1 and is used to detect the wind direction; a rotating seat 6, which includes a seat body 61 and a steering drive 62, the steering drive 62 being connected to the seat body 61 in a transmission manner, and the storage compartment 1 being mounted on the seat body 61; and a controller (not shown), which is communicatively connected to the wind direction detection device 5 and the rotating seat 6.
[0031] Based on the aforementioned device, the controller controls the steering drive 62 to rotate the base 61 so that the impeller assembly 2 faces the wind direction according to the wind direction parameters detected by the wind direction detection device 5. In this embodiment, a wind power generation device can adjust its circumferential direction according to the wind direction so that the impeller assembly 2 faces the wind direction, forming a wind direction adjustment system to improve wind energy reception efficiency. It should be noted that the wind direction detection device 5 is existing technology and typically integrates both wind direction and wind speed sensing functions to provide more comprehensive wind direction parameter information. Specifically, in this embodiment, the wind direction adjustment system starts working when the device is in a vertical operating state.
[0032] Example 5, as shown in Figure 9, further includes, based on Example 1 or 2: a wind speed detection sensor, which is located outside the storage compartment 1 and is used to detect wind speed. Specifically, the wind speed detection sensor is integrated with the wind direction detection device 5, which is existing technology; an electromagnetic starter 7, which includes a drive rotor 71 and is connected to the axial flow impeller 22; and a control unit, which is communicatively connected to the electromagnetic starter 7 and the wind speed detection sensor.
[0033] The control unit receives the wind speed signal detected by the wind speed sensor, compares the wind speed signal with the preset value, and if the wind speed is too low, controls the electromagnetic starter 7 to drive the drive rotor 71 to rotate, providing starting torque for the axial flow impeller 22.
[0034] In vertical operation, if insufficient wind power is encountered, the axial impeller 22 will not rotate due to insufficient kinetic energy. When the wind speed sensor detects that the wind volume is too low, the control unit drives the electromagnetic starter to assist the fan in rotating, and the axial impeller 22 continues to rotate with the help of natural wind. In this embodiment, the drive rotor 71 is coaxially connected to the first transmission shaft 41, and the stator component of the electromagnetic starter 7 is sleeved on the outside of the first transmission shaft 41. The electromagnetic starter 7 can also cooperate with the current detection module. If an abnormal system current is detected, the electromagnetic starter 7 will brake the drive rotor 71.
[0035] Example 6: Based on Example 5, in this example, the roller blind 11 is mounted on the flip frame 31. The flip frame 31 is provided with a pair of guide rails 313 and a sliding groove 3130. The roller blind 11 includes a curtain shaft 111 rotatably mounted on the 31 and a curtain body 112 disposed on the curtain shaft 111. A pair of side edges of the curtain body 112 are slidably disposed in a pair of sliding grooves 3130. The curtain shaft 111 is driven to rotate by the roller blind motor 113.
[0036] In this embodiment, when the roller blind 11 is in the vertical working state, it is placed behind the exposed end of the axial impeller 22. If the detected wind speed is less than the preset value, the blind 112 is rolled up to the outside of the axial projection area of the axial impeller 22. If the detected wind speed is greater than the preset value, the blind 112 is unfolded to be directly opposite the axial direction of the axial impeller 22. The rotating seat 6 is activated to turn the blind 112 to the windward side, which has the effect of blocking the wind and stopping the axial impeller 22 from rotating.
[0037] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.
Claims
1. A wind power plant, characterized in that include: Storage compartment (1), wherein the storage compartment (1) is provided with a ventilation opening; Impeller assembly (2), the impeller assembly (2) includes a cross-flow impeller (21) and an axial flow impeller (22), the cross-flow impeller (21) is rotatably installed in the storage compartment (1), and the rotation shaft of the cross-flow impeller (21) is vertically arranged; The flipping device (3) includes a flipping frame (31) and a driver (32) that is pulsatorically connected to the flipping frame (31). The axial flow impeller (22) is rotatably mounted on the flipping frame (31). A generator (4) is mounted on a tilting frame (31); The driver (32) is used to drive the tilting frame (31) to switch between a horizontal working state and a vertical working state, wherein: When in a horizontal working state, the cross-flow impeller (21) is connected to the generator (4) for transmission, and the axial flow impeller (22) is stored in the storage compartment (1); When in vertical working state, the axial flow impeller (22) is connected to the generator (4) for transmission, the rotating shaft of the axial flow impeller (22) is arranged horizontally, and the axial flow impeller (22) moves out of the outside of the storage bin (1).
2. A wind power plant according to claim 1, characterized in that: The axial flow impeller (22) is connected to the generator (4) via a transmission. When the tilting frame (31) is in a horizontal working state, the cross-flow impeller (21) and the axial flow impeller (22) are coaxially coupled to be connected to the generator (4) for transmission. When the tilting frame (31) is in a vertical working state, the axial flow impeller (22) and the cross flow impeller (21) are decoupled.
3. A wind power plant according to claim 2, characterised in that: A connecting structure is provided between the axial flow impeller (22) and the cross-flow impeller (21). The connecting structure includes a protrusion (211) and a groove (221) respectively provided on a pair of connecting bodies. The protrusion (211) and the groove (221) are adapted to each other. When in a horizontal working state, the protrusion (211) is embedded in the groove (221) to transmit torque.
4. A wind power plant according to claim 3, characterised in that: The cross-sectional shape of the protrusion (211) is rotationally symmetrical, and the outer edge of the front end of the protrusion (211) is provided with an introductory slope (2111).
5. A wind power plant according to claim 2, characterised in that: It also includes a first drive shaft (41), which is connected to the generator (4) for transmission. The axial flow impeller (22) is mounted on the first drive shaft (41), and the first drive shaft (41) and the axial flow impeller (22) have the same rotation axis.
6. A wind power plant according to claim 1, characterised in that: It also includes a first drive shaft (41), which is connected to the generator (4) and is the same as the rotating shaft of the axial flow impeller (22); It also includes a floating drive device. During the switching process between the horizontal and vertical working states of the tilting frame (31), the floating drive device is used to drive the first transmission shaft (41) to move axially, so that: When the tilting frame (31) is in a horizontal working state, the first drive shaft (41) is coupled with the cross-flow impeller (21) to transmit torque, and the first drive shaft (41) is decoupled from the axial flow impeller (22); When the tilting frame (31) is in the vertical working state, the first drive shaft (41) is coupled with the axial flow impeller (22) to transmit torque, and the first drive shaft (41) is decoupled from the cross flow impeller (21).
7. A wind power plant according to claim 6, characterised in that: The cross-flow impeller (21) is provided with a transmission connection seat (212). When the tilting frame (31) is in a horizontal working state, the transmission connecting seat (212) and the first transmission shaft (41) are sleeved together to form a transmission body. The transmission body passes through the axial flow impeller (22) axially. The axial flow impeller (22) is provided with a through hole (220) corresponding to the transmission body.
8. A wind power plant according to claim 7, characterised in that: The floating drive device includes a transmission connecting seat (212) and a return spring (431), the return spring (431) being axially abutting against the first transmission shaft (41); When the tilting frame (31) is in the vertical working state, the return spring (431) axially presses the first drive shaft (41) until the first drive shaft (41) is sleeved with the axial flow impeller (22); When the tilting frame (31) is in a horizontal working state, the transmission connecting seat (212) axially pushes the first transmission shaft (41) until the first transmission shaft (41) separates from the axial flow impeller (22).
9. A wind power plant according to claim 5 or 6, characterised in that: It also includes a second drive shaft (42), and the first drive shaft (41) and the second drive shaft (42) are connected by a pair of meshing bevel gears (43); The tilting frame (31) includes a shaft cylinder (311) and a gearbox (312). The shaft cylinder (311) is connected to one side of the gearbox (312). The second drive shaft (42) is rotatably installed inside the shaft cylinder (311). The gearbox (312) is provided with a transmission gear set (3121) that is connected to the generator (4). The end of the second drive shaft (42) away from the first drive shaft (41) is connected to the transmission gear set (3121).
10. A wind power plant according to claim 1, characterised in that: The cross-flow impeller (21) has a cavity (210) with one end open in the axial direction. When in a horizontal working state, the axial flow impeller (22) is set in the cavity (210).
11. A wind power plant according to claim 1, characterised in that: The impeller assemblies (2) are arranged in pairs, with the pair of impeller assemblies (2) arranged at a lateral interval.
12. A wind power plant according to claim 9, characterised in that: The shaft cylinder (311) includes a pair of two-part housings (3111) spliced together, and the gearbox (312) includes a front housing (3122) and a rear housing (3123) spliced together, with the pair of two-part housings (3111) respectively connected to the front housing (3122) and the rear housing (3123).
13. A wind power plant according to claim 1, characterised in that Also includes: Wind direction detection device (5), which is placed outside the storage compartment (1) and is used to detect wind direction; Rotating seat (6), the rotating seat (6) includes a seat body (61) and a steering drive (62), the steering drive (62) is connected to the seat body (61) in a transmission manner, and the storage compartment (1) is installed on the seat body (61); The controller, the wind direction detection device (5) and the rotating seat (6) are communicatively connected to the controller.
14. A wind power generation device according to claim 13, characterized in that, Also includes: A wind speed detection sensor is installed outside the storage compartment (1) to detect wind speed; An electromagnetic starting device (7) is provided, comprising a drive rotor (71) which is connected to an axial flow impeller (22) in a transmission manner. The control unit is connected in communication with the electromagnetic starter (7) and the wind speed detection sensor.
15. A wind power generation device according to claim 14, characterized in that, Also includes: The roller blind (11) is installed on the flip frame (31). The flip frame (31) is provided with a pair of guide rails (313). The guide rails (313) are provided with slide grooves (3130). The roller blind (11) includes a curtain shaft (111) rotatably installed on the flip frame (31) and a curtain body (112) provided on the curtain shaft (111). A pair of side edges of the curtain body (112) are slidably disposed in a pair of slide grooves (3130). The curtain shaft (111) is driven to rotate by the roller blind motor (113). The storage compartment (1) has an opening, and the axial flow impeller (22) extends out of the storage compartment (1) from the opening; In the horizontal working state, the curtain (112) unfolds to close the opening on the storage compartment (1); In the vertical working state, the roller shutter (11) is placed behind the exposed end of the axial impeller (22). If the detected wind speed is less than the preset value, the curtain (112) is rolled up to the outside of the axial projection area of the axial impeller (22). If the detected wind speed is greater than the preset value, the curtain (112) is unfolded to be directly opposite the axial direction of the axial impeller (22), and the rotating seat (6) is activated to turn the curtain (112) to the windward side.
16. A wind power generation device according to claim 1, characterized in that: It also includes a cooling channel (10), the air inlet of which is connected to the outside of the storage compartment (1) on the side facing the wind; the air outlet of the cooling channel (10) is located inside the storage compartment (1).
17. A wind power generation device according to claim 1, characterized in that: The ventilation opening includes an air inlet (101) and an air outlet (102) respectively located on the front and rear sides of the storage compartment (1). The air inlet (101) is provided with a guide vane (1011), which is rotatably and adjustablely installed at the air inlet (101).