Minitype wind-driven generator

Abstract

The invention discloses a minitype wind-driven generator which comprises a generator, an impellor, a vertical column and a diversion cover, wherein the impellor comprises a blade and a hub; the generator is installed in the diversion cover; the diversion cover is provided with a revolving member; the diversion cover is rotatably connected with the vertical column through the revolving member; andthe blade tip of the blade bends afterwards. The wind-driven generator provided by the invention can generate electricity at the wind speed of 2-3 meters / second, so that the minitype wind-driven generator has practicability, and wind energy can be converted into electric energy fully.

Description

technical field [0001] The invention relates to wind power generating equipment, in particular to a small wind power generating device. Background technique [0002] Traditional small wind power generation devices are generally composed of generators, impellers, and rudder stock (see Image 6 ), the generator is exposed outside, its shaft end is connected to the hub of the impeller and a shroud is used to prevent dust from entering, the other end of the generator is connected to the rudder stock on the one hand and the column on the other. The blades of the impeller are perpendicular to the axial direction of the hub. The deficiencies of this small wind turbine have the following aspects: [0003] 1. The shroud is only for protection. When the impeller is installed, the blade and the hub are installed and balanced, and then the shroud is installed. The material of the hub is generally metal carbon steel or aluminum alloy. The diameter of the hub should not be too large, o...

AI Technical Summary

Problems solved by technology

The eddy current resistance at the root of the impeller increases, which reduces the conversion efficiency of the wind wheel;

[0005] 2. Due to the cumulative error of the secondary installation, the balance accuracy of the wind rotor is affected, and the starting resistance, power generation efficiency and starting wind speed are increased.

At the same time, the fixing position and fasteners of the shroud are not strong enough to resist corrosion, and there is a danger of breaking and falling within 1-2 years after installation

[0006] 2. The generator is exposed outside. 1. When the sun is exposed to high temperature and the temperature of the generator is doubled, the bearing grease will melt and cause oil flow, which reduces the lubrication effect

2. When it rains, water easily enters the bearing and permanent magnet generator, causing corrosion of the bearing and permanent magnet, which can easily cause damage to the generator

Excessively high rated wind speed requirements force the wind turbine to be unable to generate electricity most of the time, and the generated electric energy cannot overcome the internal resistance of the system to perform work, which is basically of no practical value

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