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Wind driven generator

A wind turbine and cold air technology, applied in electrical components, electromechanical devices, electric components, etc., can solve the problems of natural ventilation and heat dissipation of generators, affecting the use effect of generators, and increasing local temperature of generators, etc., and achieve good promotion. Value, compact structure, the effect of reducing the cooling air volume

Active Publication Date: 2012-01-25
DONGFANG ELECTRIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Natural wind cooling itself is inefficient, and wind turbines are supported by towers, so the tower effect has an impact on the natural ventilation and heat dissipation of generators
Therefore, the general natural ventilation cooling is not balanced, which will increase the local temperature of the generator and affect the use of the generator

Method used

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Examples

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Embodiment Construction

[0018] Such as Figure 1~4 As shown: the present invention is a direct-drive wind generator with a special ventilation and cooling structure, and a rotor 6 and a stator base 3 that cooperate with each other are arranged in the casing of the wind generator. The front end cover 9 of the casing corresponds to the non-driving end of the wind generator, and the rear end cover 11 corresponds to the driving end of the wind generator.

[0019] Both sides of the outer circumferential surface of the stator frame 3 are respectively provided with a front side baffle 11 and a rear side baffle 12, the front side baffle 11 and the rear side baffle 12 are annular, and are fixedly connected to the side of the stator frame 3. Both sides of the outer peripheral surface, and the height of the front side baffle 11 and the rear side baffle 12 are higher than the outer peripheral surface by a certain distance, so that a circle of annular grooves is formed near the outer peripheral surface of the sta...

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Abstract

The invention provides a wind driven generator, comprising a rotor and a stator frame which are mutually matched, wherein a communicated circular air gap is formed between the rotor and the stator frame; the external circumference surface of the stator frame is provided with a circle of annular groove; the two sides of the annular groove are respectively provided with a baffle; the interior of the annular groove is axially provided with vertical rib plates along a stator; the vertical rib plates divide the annular groove into a plurality of ventilating cavities; the ventilating cavities are cold air cavities or hot air cavities; the cold air cavities and the hot air cavities are alternately arranged on the external circumference surface of the stator frame; and the bottoms of each cold air cavity and each hot air cavity are respectively connected with a cold air inputting channel and a hot air outputting channel. According to the wind driven generator provided by the invention, each cold air area channel and each hot air area channel are distributed crosswise, have clear and definite functions and do not interfere with each other; the cooling effect is good, the needed cooling airquantity is greatly reduced, and the work efficiency of the generator is improved; and the wind driven generator has a compact structure, is convenient to structurally design, and has good promotion value.

Description

technical field [0001] The invention relates to a wind-driven generator, in particular to a direct-drive wind-driven generator which adopts windy areas and alternates cooling and heating in ventilation areas. Background technique [0002] The direct-drive permanent magnet wind turbine is a more attention-grabbing model of wind turbines today. Compared with doubly-fed and semi-direct-drive wind turbines, the direct-drive type cancels the gear box structure that is prone to failure, so it has many advantages such as maintenance-free, high reliability, high efficiency, and low noise. It is very popular in the wind power market. A model with potential. The main task of the ventilation and cooling system of the generator is to exchange heat with the effective loss part of the generator through the process of cooling gas circulating in the generator, convert the loss generated inside the generator into the heat of the cooling medium, and pass the heat exchange The generator or t...

Claims

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Application Information

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IPC IPC(8): H02K9/02H02K1/20H02K9/04H02K5/20
Inventor 廖毅刚侯小全周光厚王超李建富
Owner DONGFANG ELECTRIC MACHINERY
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