Integrated vertical-axis wind turbine

Abstract

The invention relates to an integrated vertical-axis wind turbine which comprises an upper cover, a lower cover, blades, a power generator and a shaft body, wherein the lower cover is arranged below the upper cover; the blades are arranged between the upper cover and the lower cover; two ends of each blade are fixedly connected with the upper cover and the lower cover correspondingly; the power generator is arranged at the center of the upper end of the lower cover; the lower part of the power generator is fixedly connected with the lower cover through a bolt; the shaft sequentially penetratesthrough the upper cover, the power generator and the lower cover from top to bottom, and is connected with the upper cover, the power generator and the lower cover through a plurality of bearings; and the bearings all sleeve the shaft body. Compared with the prior art, the integrated vertical-axis wind turbine provided by the invention achieves the integrated design of a wind wheel and a permanent magnet power generator of a conventional wind turbine. Accordingly, the structure of the integrated vertical-axis wind turbine can be simplified, the integrated vertical-axis wind turbine can rotateand produce electricity energy as long as the internal cogging torque of a motor is overcome, the mechanical abrasion caused by a transmission device and the consumption of wind energy can be reduced, and the wind energy utilization ratio can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to an integrated vertical axis wind power generator. Background technique [0002] As global environmental problems become more and more prominent, countries all over the world pay more and more attention to the use of clean energy. Our country put forward the development strategy of "environment-friendly and resource-saving" long ago. On this basis, the country has increased the development and utilization of clean energy. Therefore, in order to utilize wind energy more effectively, it is particularly important to develop a wind turbine with high utilization rate of wind energy, good stability and easy installation. [0003] Off-grid vertical-axis wind turbines do not require a yaw device, can receive wind energy from any wind direction, are easy to install, easy to maintain, and have a low start-up wind speed, so they are widely used. However, the motor and the win...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an integrated vertical axis wind power generator. The technical problem to be solved is: the motor and the wind wheel are connected together through the transmission device, which will increase the mechanical loss of the wind power generator, and the friction of the transmission device will also consume a certain amount of energy. Wind energy, reducing the utilization rate of wind energy for wind turbines

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