Wind power generation device

Abstract

The utility model discloses a wind power generation device which comprises a machine frame and a generator arranged on the machine frame, a wind energy conversion body used for converting wind energy into rotating kinetic energy is arranged on the machine frame, and the wind energy conversion body is composed of a horizontal rotating shaft and a spiral blade arranged on the horizontal rotating shaft. The end part of the horizontal rotating shaft is connected with a rotating shaft of the generator; the helical lead of the helical blade is constant, and the helical angle of the helical blade is 32-46 degrees. According to the wind power generation device, the wind energy conversion body is only composed of the horizontal rotating shaft and the spiral blades arranged on the horizontal rotating shaft, so that the structure of the wind power generation device is greatly simplified, the manufacturing and assembling difficulty of the wind power generation device is reduced, and the manufacturing cost of the wind power generation device is also reduced; and no shell is arranged on the outer side of the wind energy conversion body to prevent the wind flow from acting on the spiral blades, so that more wind flow can act on the blades, and the power generation efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, and in particular to a wind power generation device. Background Technology

[0002] The inventors previously filed a utility model patent application (application number 202322090290.0) entitled "Wind Energy Conversion Device," which includes an inner rotating body and an outer rotating body with blades. The inner and outer rotating bodies drive two generators, one on the left and one on the right, respectively. Although this wind energy conversion device has two power mechanisms to drive the generators, the inventors' experimental research revealed that the outer rotating body significantly affects the power generation efficiency of the inner rotating body. Furthermore, the outer rotating body increases the structural complexity of the wind energy conversion device, making manufacturing and assembly more difficult and costly. Additionally, the parameters of the helical blades also significantly affect the power generation efficiency of the inner rotating body, requiring reasonable design. Therefore, optimization and improvement of this wind energy conversion device are necessary. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a wind power generation device to solve the technical problem of optimizing the structure of the above-mentioned wind energy conversion device.

[0004] The present invention relates to a wind power generation device, comprising a frame and a generator mounted on the frame. The frame is provided with a wind energy converter for converting wind energy into rotational kinetic energy. The wind energy converter consists of a horizontal rotating shaft and helical blades mounted on the horizontal rotating shaft. The end of the horizontal rotating shaft is connected to the rotating shaft of the generator.

[0005] Furthermore, three spiral blades are evenly arranged circumferentially along the horizontal axis of rotation.

[0006] Furthermore, the outer edge of the spiral blade is a conical spiral with a lead of 2400 mm, a cone base diameter of 1190 mm at one end of the conical spiral, a cone base diameter of 1790 mm at the other end of the conical spiral, 0.5 spiral turns, and a counterclockwise spiral direction.

[0007] The beneficial effects of this utility model are:

[0008] 1. The wind power generation device of this utility model consists only of a horizontal rotating shaft and spiral blades set on the horizontal rotating shaft. It eliminates the external rotating body in the utility model patent with application number 2023220902900 entitled "Wind Power Conversion Device", which greatly simplifies the structure of the wind power generation device, reduces the difficulty of manufacturing and assembly, and also reduces its manufacturing cost.

[0009] 2. The wind power generation device of this utility model has no outer shell to block the wind flow from acting on the spiral blades, so that more wind flow can act on the blades, resulting in higher power generation efficiency.

[0010] 3. The wind power generation device of this utility model effectively improves the utilization efficiency of wind energy by reasonably setting parameters such as the number of helical blades, the diameter of the cone base circle at both ends of the helix, the lead and the number of helical turns. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of a wind power generation device.

[0012] Figure 2 This is a front view schematic diagram of a wind energy conversion system;

[0013] Figure 3 for Figure 2 Left view of the wind energy converter;

[0014] Figure 4 This is a three-dimensional schematic diagram of a helical blade. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] This embodiment of the wind power generation device includes a frame 1 and a generator 2 mounted on the frame. In this embodiment, the frame 1 is approximately U-shaped, and the generator 2 is mounted on it. A wind energy conversion element for converting wind energy into rotational kinetic energy is mounted on the frame. The wind energy conversion element consists of a horizontal rotating shaft 3 and helical blades 4 mounted on the horizontal rotating shaft. The end of the horizontal rotating shaft is connected to the generator shaft. In a specific implementation, a support structure 5 consisting of bearing seats and bearings can be provided on the frame 1 to support the horizontal rotating shaft. The horizontal rotating shaft can be connected to the generator at only one end, or both ends of the horizontal rotating shaft can be connected to the generator.

[0017] In this embodiment, the wind power generation device consists only of a horizontal rotating shaft and helical blades mounted on the shaft. This simplifies the structure of the wind power generation device, reduces manufacturing and assembly difficulties, and lowers manufacturing costs. Furthermore, the absence of a casing on the outside of the wind power conversion body to obstruct airflow to the helical blades allows for greater airflow to reach the blades, resulting in higher power generation efficiency.

[0018] As an improvement to the above implementation, three spiral blades are evenly arranged circumferentially along the horizontal axis of rotation. The outer edge of the spiral blades has a conical spiral with a lead of 2400 mm, a cone base diameter of 1190 mm at one end, and a cone base diameter of 1790 mm at the other end. The conical spiral has 0.5 turns and a counterclockwise spiral direction. The helix angle of the spiral blades is between 32.7° and 81°. The wind energy converter defined by the aforementioned structure has a high wind energy conversion efficiency.

[0019] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A wind power generation device, comprising a frame and a generator mounted on the frame, characterized in that: The frame is equipped with a wind energy converter for converting wind energy into rotational kinetic energy. The wind energy converter consists only of a horizontal rotating shaft and helical blades mounted on the horizontal rotating shaft. The outer edge of the helical blades is a conical helix with a lead of 2400 mm, a cone base diameter of 1190 mm at one end of the conical helix, a cone base diameter of 1790 mm at the other end of the conical helix, 0.5 turns of the conical helix, and a counterclockwise helix direction.

2. The wind power generation device according to claim 1, characterized in that: The spiral blades are arranged in three evenly around the horizontal axis of rotation.

Images