Light-weight wind driven generator

Abstract

The invention provides a light-weight wind driven generator which comprises a motor shell, a middle shaft, a permanent magnet, a coil and a fan blade body, wherein the middle shaft penetrates through the motor shell and can rotate relative to the motor shell; the permanent magnet and the coil are arranged in the motor shell; the fan blade body is sleeved on the middle shaft; the shell is internally provided with protrusions which are arranged at equal intervals in the circumferential direction; the permanent magnet is clamped in a concave area between two adjacent protrusions; the coil is annular integrally, and is provided with an insulating internal fixed ring and an insulating external fixed ring; the shell is provided with a notch for uncovering the external fixed ring and a boss which extends into the internal fixed ring; the motor shell and a motor mounting seat are fixedly connected; the motor mounting seat is internally provided with the permanent magnet; and the lower end of the middle shaft is fixedly connected with a permanent magnet with the same opposite-face polarity as the permanent magnet in the motor mounting seat. The wind driven generator provided by the invention has the beneficial effects that the connection mode of the permanent magnet and the shell is simple and quick; the shell can be manufactured to be very thin, and has a light and handy structure; and through the permanents with the same opposite-face polarity, the middle shaft and the fan blade body are suspended relative to the motor mounting seat, and the resistance of the generator is reduced.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a light wind power generator. Background technique [0002] Existing wind power generators generally include a hollow central shaft, a motor casing rotatably fitted on the central shaft, a permanent magnet fixed to the inner wall of the motor casing, and a motor casing located in the cavity and relatively centered. The shaft is fixed to the coil and the fan body. The overall weight of the generator is large. When the wind is small, it cannot start. When the wind speed is high, it will automatically cut off the output and stop working; the structure of the blade body is unreasonable, and the utilization rate of wind energy is low. Contents of the invention [0003] The object of the present invention is to provide a light wind power generator with light structure, high utilization rate of wind energy and multiple output modes. [0004] Object of the invention of ...

AI Technical Summary

Problems solved by technology

[0002] Existing wind power generators generally include a hollow central shaft, a motor casing rotatably fitted on the central shaft, a permanent magnet fixed to the inner wall of the motor casing, and a motor casing located in the cavity and relatively centered. The shaft is fixed to the coil and the fan body. The overall weight of the generator is large. When the wind is small, it cannot start. When the wind speed is high, it will automatically cut off the output and stop working; the structure of the fan blade is unreasonable, and the utilization rate of wind energy is low

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