Wind power generation device with protective function

Abstract

The invention relates to a wind power generation device with the protective function. The wind power generation device comprises a base, a tower frame, an engine room, a wheel hub and a plurality of fan blades; a power generation device comprises a speed-increasing gearbox, a first electric generator, a reducing mechanism and a plurality of heat dissipating mechanisms; the reducing mechanism comprises a circular ring, a support component, a plurality of convex plates, a plurality of convex teeth and a plurality of air cylinders; each of the heat dissipating mechanisms comprises a heat dissipating pipe, a cover plate, a filter screen, a driving component, a telescopic component, a second electric generator and a gear; and the telescopic component comprises a bracket, a sliding plate, a movable plate, a spring and a limiting unit. Through cooperative operation of the reducing mechanism and the heat dissipating mechanisms, the wind power generation device can reduce the rotary speed of agear when the wind power is stronger and does work to the second electric generator through gear rotation for additional power generation; and at the same time, the cover plate is separated from the the heat dissipating pipes, so that the engine room can conveniently carry out ventilation and heat dissipation, and the wind power generation device generates electricity in a safe, stable and efficient manner to improve the practicality of the wind power generation device.

Description

technical field [0001] The invention relates to the field of new energy equipment, in particular to a wind power generating device with a protection function. Background technique [0002] A wind turbine is a power device that converts wind energy into mechanical work, which drives the rotor to rotate, and finally outputs alternating current. Wind turbines are generally composed of components such as wind rotors, generators (including devices), steering devices (tail fins), towers, speed-limiting safety mechanisms, and energy storage devices. The working principle of a wind turbine is relatively simple. The wind rotor rotates under the action of the wind, which converts the kinetic energy of the wind into the mechanical energy of the wind rotor shaft, and the generator rotates to generate electricity under the drive of the wind rotor shaft. In a broad sense, wind energy is also solar energy, so it can also be said that a wind generator is a thermal energy utilization genera...

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Problems solved by technology

[0003] During the operation of the existing wind power generation device, the rotational speed of the rotating shaft is affected by the external wind force. Therefore, when the external wind force is too strong, the brake disc is usually used inside the nacelle to reduce the rotational speed of the blades and the rotating shaft. However, during the process of reducing the rotational speed , since the brake disc is braked by friction, it will not only cause excessive heat inside the cabin, which will affect the operation of other facilities in the cabin, but will also lead to a decrease in the power generation of the wind turbine, which in turn will lead to the existing wind power Reduced availability of generators

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