Foldable wind driven generator

Abstract

The utility model discloses a foldable wind driven generator, which comprises a support frame body (1) and is characterized in that a generator is arranged at the end part of the support frame body (1), a stator part of the generator is fixedly connected with the support frame body (1), and a rotor part (2) of the generator is rotatably supported on the support frame body (1). A plurality of blades (3) which are uniformly distributed in the circumferential direction are arranged on the outer circumference of the rotor part (2), the blades (3) are rotationally connected with the rotor part (2) through connecting rods (4), the ends of the connecting rods (4) are pressing ends (5), a connecting bolt (6) located at the central axis of the rotor part (2) is further arranged on the supporting frame body (1), a pressing head (7) is in threaded connection with the connecting bolt (6), and the pressing head (7) is in threaded connection with the rotor part (2). And when the blade (3) is in a posture perpendicular to the middle axial direction of the rotor part (2), the pressing head (7) can press all the pressing ends (5).

Description

Technical Field

[0001] The utility model relates to the field of wind power generation, in particular to a foldable wind power generator. Background Art

[0002] Wind power, as a key form of renewable energy, has a long history and profound background. Modern wind power technology has seen significant improvements in design, materials, and power generation efficiency, making wind power an economically viable electricity option. Today, the wind power industry has formed a complete ecosystem, encompassing wind power equipment manufacturing, wind farm construction and operation, and related after-sales services.

[0003] Wind power generation harnesses natural wind energy to generate clean electricity, reducing dependence on fossil fuels, helping to reduce greenhouse gas emissions and mitigate global climate change. Traditional wind turbines are typically large, but with the continuous advancement of wind power technology, wind turbines are gradually becoming smaller and more convenient. However, to ensure efficient power generation, wind turbines must have several relatively large blades, which results in a larger overall size, requiring a larger space and making them inconvenient to carry and move.

[0004] There are now some structures that can disassemble the blades from the power generation device. Although these mechanisms can solve the above problems to a certain extent, the disassembly and assembly operations require a lot of manpower and also affect work efficiency.

[0005] Therefore, a method or device that can solve the above problems is needed. Summary of the Invention

[0006] The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes a wind turbine with a simple structure, ingenious design, and reasonable layout, and the blades of which can be folded and stowed, thereby making it easy to carry and move.

[0007] The technical solution of the present utility model is: a foldable wind turbine, comprising a support frame 1, characterized in that: a generator is provided at the end of the support frame 1, the stator portion of the generator is fixedly connected to the support frame 1, and its rotor portion 2 is rotatably supported on the support frame 1, and a plurality of blades 3 uniformly distributed in the circumferential direction are provided on the outer circumference of the rotor portion 2, the blades 3 are rotatably connected to the rotor portion 2 through a connecting rod 4, the end of the connecting rod 4 is a clamping end 5, and a connecting bolt 6 located at the central axis of the rotor portion 2 is further provided on the support frame 1, and a pressure head 7 is threadedly connected to the connecting bolt 6, and when the blade 3 is in a posture perpendicular to the central axis of the rotor portion 2, the pressure head 7 can clamp all the clamping ends 5,

[0008] The support frame 1 is provided with a battery slot 8, in which a battery 9 is provided. The battery 9 is connected to the generator through a wind power processing circuit. An L-shaped buckle 10 is provided in the battery slot 8, and a slot 11 matching the L-shaped buckle 10 is provided on the outer wall of the battery 9. A tail end buckle 12 is also provided at the tail end of the battery slot 8, and a buckle spring is provided at the bottom of the tail end buckle 12. An operating handle 13 protruding from the support frame 1 is also provided on the tail end buckle 12.

[0009] A sensor 14 is provided on the bottom plate of the support frame 1, and a trigger block 15 matching the sensor 14 is provided on the rotor part 2. The sensor 14 is connected to a control system, which can also control the buzzer alarm.

[0010] A brake shaft 16 is also movably connected to the bottom plate of the support frame 1, and one end of the brake shaft 16 protrudes from the bottom plate of the support frame 1, and the other end is provided with an arc surface portion that matches the outer wall of the rotor shaft 17, and a friction material layer is provided on the arc surface portion. The brake shaft 16 is connected and coaxial with the rotor part 2, and a brake spring 18 is also sleeved on the brake shaft 16. A limiting ring 19 is provided on the brake shaft 16, and the brake spring 18 is located between the limiting ring 18 and the baffle 20, and the baffle 20 is fixedly connected to the bottom plate of the support frame 1.

[0011] The support frame 1 is provided with a first slot 21 at the rear portion and a second slot 22 at the bottom portion. The axial direction of the first slot 21 and the axial direction of the second slot 22 are perpendicular to each other.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] This foldable wind turbine has a simple structure, ingenious design, and a rational layout. It addresses the problems encountered by traditional wind turbines during use by employing a unique design. Its blades can fold up when not in operation, aligning with the main body of the turbine, effectively reducing its footprint. It also features speed measurement and control, enabling it to monitor the impeller's rotational speed and effectively control its rotational speed to prevent damage to the rotating structure due to excessive rotational speed. Furthermore, the wind turbine boasts a simple manufacturing process and low manufacturing costs, offering numerous advantages and making it particularly suitable for widespread application in this field. Its market prospects are promising. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the utility model (direction one).

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of an embodiment of the utility model (direction two).

[0016] Figure 3 It is a structural diagram of the battery and the battery slot in the embodiment of the present utility model.

[0017] Figure 4 It is a structural schematic diagram of an embodiment of the utility model in a folded state.

[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of an embodiment of the utility model (direction three).

[0019] Figure 6 It is a partial enlarged view of the braking mechanism in the embodiment of the present utility model. DETAILED DESCRIPTION

[0020] The specific implementation of the present invention will be described below with reference to the accompanying drawings. Figures 1 to 6 As shown: A foldable wind turbine, comprising a support frame 1 as a basis, a generator is arranged at the end of the support frame 1, the stator part of the generator is fixedly connected to the support frame 1, and the rotor part 2 is rotatably supported on the support frame 1, and a plurality of blades 3 uniformly distributed in the circumferential direction are arranged on the outer circumference of the rotor part 2, the blades 3 are rotatably connected to the rotor part 2 through a connecting rod 4, and the end of the connecting rod 4 is a clamping end 5. A connecting bolt 6 located at the central axis of the rotor part 2 is further provided on the support frame 1, and a pressure head 7 is threadedly connected to the connecting bolt 6. When the blade 3 is in a posture perpendicular to the central axis of the rotor part 2, the pressure head 7 can clamp all the clamping ends 5.

[0021] The support frame 1 is provided with a battery slot 8, in which a battery 9 is provided. The battery 9 is connected to the generator through a wind power processing circuit. An L-shaped buckle 10 is provided in the battery slot 8, and a slot 11 matching the L-shaped buckle 10 is provided on the outer wall of the battery 9. A tail end buckle 12 is also provided at the tail end of the battery slot 8, and a buckle spring is provided at the bottom of the tail end buckle 12. An operating handle 13 protruding from the support frame 1 is also provided on the tail end buckle 12.

[0022] A sensor 14 is provided on the bottom plate of the support frame 1, and a trigger block 15 matching the sensor 14 is provided on the rotor part 2. The sensor 14 is connected to a control system, which can also control the buzzer alarm.

[0023] A brake shaft 16 is also movably connected to the bottom plate of the support frame 1, and one end of the brake shaft 16 protrudes from the bottom plate of the support frame 1, and the other end is provided with an arc surface portion that matches the outer wall of the rotor shaft 17, and a friction material layer is provided on the arc surface portion. The brake shaft 16 is connected and coaxial with the rotor part 2, and a brake spring 18 is also sleeved on the brake shaft 16. A limiting ring 19 is provided on the brake shaft 16, and the brake spring 18 is located between the limiting ring 18 and the baffle 20, and the baffle 20 is fixedly connected to the bottom plate of the support frame 1.

[0024] The support frame 1 is provided with a first slot 21 at the rear portion and a second slot 22 at the bottom portion. The axial direction of the first slot 21 and the axial direction of the second slot 22 are perpendicular to each other.

[0025] The working process of the foldable wind turbine of the embodiment of the present invention is as follows: in the non-working state, all the blades 3 are in the folded state, that is, the blades 3 are parallel to the length direction of the support frame 1. At this time, the wind turbine is approximately cylindrical, does not need to occupy a large space, and can be easily carried and moved;

[0026] When it is necessary to use the wind turbine to convert wind energy into electrical energy, first unscrew the pressure head 7 from the connecting bolt 6, and turn all the blades 3 to make the blades 3 swing to a state perpendicular to the length direction of the support frame 1, and then re-thread the pressure head 7 onto the bolt 6. At this time, the edge of the pressure head 7 will press the clamping ends 5 on all the blades 3, thereby fixing the blades 3;

[0027] The support frame of the device is fixed in a windward position. Driven by the wind, the blades 3 drive the rotor part 2 to rotate relative to the support frame 1 (i.e., relative to the stator part). The current generated by the relative rotation of the two is AC power. This AC power is converted into DC power after being processed by the wind power processing circuit and stored in the battery 9.

[0028] During the above working process, every time the rotor part 2 rotates one circle, the trigger block 15 on it will trigger the sensor 14 once. The control system in this device includes a timing module. Therefore, after receiving the trigger signal from the sensor 14, the control system will automatically calculate the rotation speed of the rotor part 2. If the speed is too fast and exceeds the preset warning value, the control system will control the buzzer alarm to operate, and the buzzer alarm will emit a warning sound to remind the operator to intervene in time.

[0029] When the operator finds that the rotation speed is too fast, he can press the part of the brake shaft 16 that protrudes from the bottom plate of the support frame 1 to drive the brake shaft 16 to move in the direction of the rotor shaft 17. When the arc surface part at the end of the brake shaft 16 contacts the outer wall of the rotor shaft 17, specifically when the friction material layer contacts the outer wall of the rotor shaft 17, the rotation speed of the rotor shaft 17 (and the rotor part 2 fixedly connected thereto) will gradually decrease under the action of friction. In this way, the rotation speed of the rotor part 2 can be reduced. After releasing the brake shaft 16, under the action of the brake spring 18, the brake shaft 16 pops out again, and its arc surface part no longer contacts the rotor shaft 17, so the rotor part 2 can rotate normally.

[0030] When the battery 9 needs to be replaced, it is only necessary to press the operating handle 13 downward to drive the tail end buckle 12 downward. After the tail end buckle 12 gives way, there is no obstacle in the tail end direction of the battery 9. The battery 9 can be pulled out of the battery slot 8 by pulling it backward; when installing the battery, the battery 9 is pushed inward while the tail end buckle 12 remains in place. All L-shaped buckles 10 will enter the corresponding slots 11 on the battery 9. Since the buckles and slots are both L-shaped, the battery 9 can be prevented from moving in a direction perpendicular to the bottom surface of the battery slot 8. After releasing your hand, under the action of the buckle spring, the tail end buckle 12 rises again and is stuck at the tail end of the battery 9, which can prevent the battery 9 from moving backward along the plane direction of the battery slot 8, thereby fixing the battery 9 in the battery slot 8.

[0031] During actual work, an auxiliary wooden stick or rod can be inserted into the first slot 21 or the second slot 22 to lift the device to a higher place. The axes of the first slot 21 and the second slot 22 are perpendicular to each other, and you can choose which slot to use according to different actual conditions.

Claims

1. A foldable wind turbine, comprising a support frame (1), characterized in that: A generator is provided at the end of the support frame (1). The stator portion of the generator is fixedly connected to the support frame (1), and the rotor portion (2) thereof is rotatably supported on the support frame (1). A plurality of blades (3) uniformly distributed in the circumferential direction are provided on the outer circumference of the rotor portion (2). The blades (3) are rotatably connected to the rotor portion (2) via a connecting rod (4). The end of the connecting rod (4) is a clamping end (5). A connecting bolt (6) located at the central axis of the rotor portion (2) is further provided on the support frame (1). A pressure head (7) is threadedly connected to the connecting bolt (6). When the blades (3) are in a posture perpendicular to the central axis of the rotor portion (2), the pressure head (7) can clamp all the clamping ends (5). The support frame (1) is provided with a battery slot (8), a battery (9) is provided in the battery slot (8), and the battery (9) is connected to the generator through a wind power processing circuit. An L-shaped buckle (10) is provided in the battery slot (8), and a slot (11) matching the L-shaped buckle (10) is provided on the outer wall of the battery (9). A tail end buckle (12) is also provided at the tail end of the battery slot (8), a buckle spring is provided at the bottom of the tail end buckle (12), and an operating handle (13) protruding from the support frame (1) is also provided on the tail end buckle (12).

2. The foldable wind turbine according to claim 1, characterized in that: A sensor (14) is provided on the bottom plate of the support frame (1), and a trigger block (15) matching the sensor (14) is provided on the rotor part (2). The sensor (14) is connected to a control system, and the control system can also control the buzzer alarm. A brake shaft (16) is movably connected to the bottom plate of the support frame (1), one end of the brake shaft (16) protrudes from the bottom plate of the support frame (1), and the other end is provided with an arc surface portion that matches the outer wall of the rotor shaft (17), and a friction material layer is provided on the arc surface portion. The brake shaft (16) is connected and coaxial with the rotor portion (2), and a brake spring (18) is also sleeved on the brake shaft (16). A limit ring (19) is provided on the brake shaft (16), and the brake spring (18) is located between the limit ring (19) and the baffle (20), and the baffle (20) is fixedly connected to the bottom plate of the support frame (1).

3. The foldable wind turbine according to claim 1, characterized in that: The tail of the support frame (1) is provided with a first slot (21), and the bottom is provided with a second slot (22), and the axial direction of the first slot (21) and the axial direction of the second slot (22) are perpendicular to each other.

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