A self-adjusting wind and solar integrated power generation device

Abstract

This utility model discloses a self-adjusting wind-solar integrated power generation device, including a pole with one end installed on the ground and a vertical wind power generation device installed at the other end. An upper bearing and a lower bearing are installed on the pole. A photovoltaic frame is fixed to the bushings of the upper and lower bearings and can rotate around the pole. Photovoltaic panels are installed on the photovoltaic frame. A positioning rod is set on the pole below the lower bearing, and a pulley is installed on the positioning rod. The suspended end of the positioning rod faces east or west. A return rope is connected to the photovoltaic frame at one end through the pulley and to a counterweight at the other end. This utility model's power generation device solves the safety hazards caused by strong winds. The operation of the vertical wind power generation device does not obstruct the sunlight-receiving surface of the photovoltaic panels. After the wind speed decreases, the counterweight causes the photovoltaic frame to automatically reset. This structure requires no other equipment investment, has low cost, allows for a large photovoltaic panel installation area, and has a high return on investment.

Description

Technical Field

[0001] This utility model relates to a self-adjusting wind and solar integrated power generation device, belonging to the field of power generation equipment technology. Background Technology

[0002] For high-altitude power generation equipment, the most common existing technologies are three-bladed wind turbine towers and photovoltaic panels built on buildings. Alternatively, there are small-scale wind-solar integrated power generation devices, in which the photovoltaic panel area is small, mainly for power supply to equipment such as streetlights, such as a wind-solar integrated streetlight disclosed in CN202322553227.6.

[0003] However, large-area photovoltaic (PV) panel deployment poses a safety hazard due to the risk of being blown over by strong winds. Existing technologies address this safety concern by employing methods such as the wind-solar integrated power generation device disclosed in CN202321167558.X. This device uses PV support brackets to support the PV panels and fixes them to the tower. This effectively eliminates the surface area limitations of the tower's outer wall for PV panel placement. Furthermore, compared to directly fixing the PV panels to the outer wall of the tower, the ends of the PV support brackets can extend a certain length towards both sides of the tower, effectively increasing the support area for the PV panels. This allows for a larger total area of ​​PV panels and greater power generation. Moreover, it avoids additional floor space requirements beyond the existing wind power tower footprint due to the PV panels, thus maximizing power generation while minimizing land use.

[0004] This technology uses a tower as a support structure and arranges photovoltaic brackets around the tower, which solves the problems of load-bearing and sunlight, and relies on the tower to resist wind. However, this design has several problems. First, the photovoltaic panels are blocked, which leads to a significant decrease in power generation. Second, there is still a risk of them being blown over if the wind is too strong.

[0005] Moreover, all designs should not only focus on technology but also consider its ability to be transformed into new productivity. Excessive cost will also limit its application. Therefore, existing technologies need a wind-solar integrated power generation device with low input cost and strong wind resistance. Utility Model Content

[0006] In view of the above-mentioned problems in the existing technology, our company organized research and development for this project, analyzed the core of the above technical problems, and found through technical deduction and practical verification that the core problem is: how to ensure that the light-receiving surface of the photovoltaic panel is not affected, while ensuring wind resistance, and also at a low cost.

[0007] To address the aforementioned issues, this utility model provides a self-adjusting wind-solar integrated power generation device, comprising a pole with one end mounted on the ground and the other end fitted with a vertical wind power generation device. An upper bearing and a lower bearing are mounted on the pole. A photovoltaic frame is fixed to the bushings of the upper and lower bearings and can rotate around the pole. A photovoltaic panel is mounted on the photovoltaic frame. A positioning rod is installed on the pole below the lower bearing, and a pulley is installed on the positioning rod. The suspended end of the positioning rod faces east or west. A return rope is connected to the photovoltaic frame at one end through the pulley and to a counterweight at the other end.

[0008] The lower bearing installed on the uprights is a heavy-duty bearing. The weight of the frame varies depending on the size of the uprights, and is generally around 3 to 4 tons.

[0009] During installation, the positioning rods of this utility model are oriented east-west, ensuring the photovoltaic frame is oriented north-south, with the photovoltaic panels' light-receiving surface facing south. Regardless of the direction of strong winds, the photovoltaic frame will rotate until it is parallel to the wind direction, at which point the wind force on the frame is minimal, eliminating safety hazards caused by strong winds. The vertical wind power generation device above does not obstruct the light-receiving surface of the photovoltaic panels. After the wind force decreases, the counterweight automatically resets the photovoltaic frame. This structure requires no additional equipment investment, has low cost, allows for a large photovoltaic panel installation area, and offers a high return on investment.

[0010] As an optimization, two positioning rods are provided, one with its suspended end facing east and the other with its suspended end facing west. Two return pull ropes are provided, one connected to the east side of the photovoltaic frame via the east-facing positioning rod and the other connected to the west side of the photovoltaic frame via the west-facing positioning rod. The other end of each return pull rope is connected to a counterweight.

[0011] As a design that makes it easy to rotate in the wind, the photovoltaic frame is a quadrilateral frame with an asymmetrical structure on both sides of the upright. This design, where one side is slightly larger than the other, makes it easier to turn in the wind.

[0012] As a further design feature to reduce wind resistance, the photovoltaic frame is installed vertically to the ground.

[0013] Furthermore, the wind turbine of the vertical wind power generation device is installed on the top of the pole, the output shaft of the wind turbine is connected to the rotating shaft, and three wind blades are evenly distributed and surround the rotating shaft.

[0014] The advantages of this utility model over the prior art are as follows:

[0015] 1. The photovoltaic frame is designed with a rotatable and automatically reset structure, which completely solves the tower safety problem caused by strong winds;

[0016] 2. The photovoltaic panels, with their vertical or slightly tilted structure relative to the ground, are no longer affected by the shadow cast by the top vertical wind turbine, and there is no shading between the upper and lower photovoltaic panels that would affect power generation.

[0017] 3. It can make full use of the height of the pole to lay the area of ​​photovoltaic panels, resulting in a large area of ​​photovoltaic panels, high return on investment, and easy application and promotion. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0019] In the diagram: 1. Pole, 2. Vertical wind power generation device, 3. Upper bearing, 4. Lower bearing, 5. Photovoltaic frame, 6. Positioning rod, 7. Pulley, 8. Return rope, 9. Counterweight. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. Example

[0021] like Figure 1 The self-adjusting wind-solar integrated power generation device shown has one end of pole 1 installed on the ground (the bottom section is buried in the underground foundation), with a pole length and height of approximately 30 meters. The vertical wind turbine 2 is installed on top of pole 1, with a mounting surface and mounting frame at the top. The vertical wind turbine is fixed within the mounting frame at the top of the pole. The output shaft of the wind turbine is connected to a rotating shaft, and three evenly distributed blades are connected to the rotating shaft. The vertical wind turbine uses a power output of 15–30 kW (depending on the typical wind speed at the installation site).

[0022] An upper bearing 3 and a lower bearing 4 are installed on the upright 1. The lower bearing 4 is a load-bearing bearing. The photovoltaic frame 5 is fixed on the bushings of the upper bearing 3 and the lower bearing 4. The photovoltaic panel is installed on the photovoltaic frame 5. A positioning rod 6 is set on the upright 1 below the lower bearing 4. A pulley 7 is set on the positioning rod 6. There are two positioning rods 6, one with its suspended end facing east and the other with its suspended end facing west. There are two return ropes 8. One is connected to the east side of the photovoltaic frame 5 through the east-facing positioning rod 6, and the other is connected to the west side of the photovoltaic frame 5 through the west-facing positioning rod 6. The other end of each return rope 8 is connected to a counterweight 9. In order to prevent the return rope 8 from coming off the pulley 7 during rotation, two pulleys located above and below the rope can be used to restrain the rope, or a sleeve can be used. The sleeve is welded to the positioning rod, and the rope passes through the sleeve. The sleeve is set close to the pulley 7. When the wind force is too high, the stress on the equipment approaches the safety factor. At this time, the photovoltaic frame 5 overcomes the resistance of the counterweight 9 and rotates around the pole 1 under the action of the wind. The weight of the counterweight 9 is calculated based on the rotational force generated by the wind force. The counterweight 9 adopts a counterweight block with hanging rings. The weight can be increased or decreased by adjusting the number of counterweight blocks according to different photovoltaic frame areas, thus achieving self-adjustment.

[0023] When using energy storage batteries, the energy storage batteries and control circuits (inverter, controller, etc.) are all installed on the lower pole. A conduit can be installed on the bushing of the lower bearing, and the connection wires of the photovoltaic panels are connected through the conduit.

[0024] The photovoltaic frame 5 is located on one side of the pole 1 and is installed perpendicular to the ground. The photovoltaic frame 5 is a quadrilateral frame (existing photovoltaic panels are mainly quadrilateral). The quadrilateral frame on both sides of the pole 1 has an asymmetrical structure. The frame of the photovoltaic frame is welded to the bearing sleeve. The frame is centered on the welded joint of the bearing sleeve. Although both sides of the frame are square, their areas are different. With this structure, no matter which direction the strong wind comes from, it will blow the photovoltaic frame. The photovoltaic frame will rotate to be parallel to the wind direction. At this time, the wind force on the photovoltaic frame is very small, which solves the safety hazard caused by strong winds. This design with one side being larger makes it easier to turn when the wind blows, thereby reducing the wind resistance of the photovoltaic frame and the pole and ensuring the safety of the pole. After the wind force decreases, the counterweight 9 drives the photovoltaic frame 5 to automatically reset.

[0025] During installation, the positioning rods are oriented east-west, ensuring the photovoltaic frame is oriented north-south, with the photovoltaic panels facing south for optimal sunlight exposure. When the bottom of the photovoltaic frame is 6 meters or more above the ground, the impact on the space below and sunlight is minimal. The operation of the vertical wind turbine above does not obstruct the sunlight-receiving surface of the photovoltaic panels.

[0026] The above embodiments are merely explanations and illustrations of the technical solution of this utility model and should not be used to limit the protection scope of the technical solution of this utility model. All simple modifications based on this solution are within the protection scope of this utility model.

Claims

1. A self-adjusting wind-solar integrated power generation device, comprising a pole, characterized in that: One end of the pole is installed on the ground, and the other end is equipped with a vertical wind power generation device. An upper bearing and a lower bearing are installed on the pole. The photovoltaic frame is fixed on the bushings of the upper and lower bearings and can rotate around the pole. The photovoltaic panels are installed on the photovoltaic frame. A positioning rod is set on the pole below the lower bearing. A pulley is set on the positioning rod. The suspended end of the positioning rod faces east or west. The return rope is connected to the photovoltaic frame at one end through the pulley and to the counterweight at the other end.

2. The self-adjusting wind-solar integrated power generation device according to claim 1, characterized in that: Two positioning rods are provided, one with its suspended end facing east and the other with its suspended end facing west. Two return ropes are provided, one connected to the east side of the photovoltaic frame via the east-facing positioning rod and the other connected to the west side of the photovoltaic frame via the west-facing positioning rod. The other end of each return rope is connected to a counterweight.

3. The self-adjusting wind-solar integrated power generation device according to claim 1, characterized in that: The photovoltaic frame is a quadrilateral frame, with the frame bodies on both sides of the uprights arranged asymmetrically.

4. The self-adjusting wind-solar integrated power generation device according to claim 3, characterized in that: The photovoltaic frame is installed vertically to the ground.

5. The self-adjusting wind-solar integrated power generation device according to claim 1, characterized in that: The wind turbine of the vertical wind power generation device is installed on the top of the pole. The output shaft of the wind turbine is connected to the rotating shaft, and 3 to 5 wind blades are evenly distributed and surround the rotating shaft.

6. The self-adjusting wind-solar integrated power generation device according to claim 1, characterized in that: The counterweight is at least one weight block with a hanging ring, and the number of counterweights is adjusted by increasing or decreasing the number of weight blocks attached.

7. The self-adjusting wind-solar integrated power generation device according to claim 1, characterized in that: The lower bearing is a load-bearing bearing.

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