A kind of high-efficiency wind driven generator
Technical field
The utility model belongs to wind power generation field, especially a kind of high-efficiency wind driven generator.
Background technique
Wind-driven generator extensively uses in all parts of the world at present, and wind-driven generator is also varied.Column is arranged, horizontal wind direction is arranged, there is single blade that multiple-blade is also arranged, but from practical application, the generator of all various types of models is not ideal on generating efficiency and wind energy utilization at present, even adopt magnetic suspension also just to reduce mechanical resistance and surface friction drag, do not improve wind energy utilization well.And the two-directional rotation electric generator that has through consulting.Though can be rotor and stator despining mutually, because of two wind wheels with at one end, and abut against together mutually.Wait when rotated when the wind wheel of front like this and formed a wind loop, make the wind wheel of back can't absorb more energy again.Because two-wheeled reverses mutually together, two wind wheels are affected mutually again, thus the effect that can not bring into normal play, thus Wind Power Utilization efficient is reduced, generated energy reduces.Yet this structure makes again to superscribe a housing in the periphery of generator again, and then makes generator weight strengthen cost up.
Summary of the invention
In order to overcome the shortcoming that existing wind-driven generator Wind Power Utilization efficient is low, start wind speed height, structure heaviness, the utility model provides a kind of counter-rotating wind-driven generator of respectively establishing a wind wheel at the generator two ends, it utilizes aerodynamic principle, makes a kind of high-efficiency wind driven generator that Wind Power Utilization efficient improves, generated energy increases, the startup wind speed reduces.
The technological scheme that the utility model adopted is: respectively be provided with output shaft on the stator of generator and rotor, output shaft lays respectively at two ends, the output shaft at two ends respectively by two bearing fixing on support, on the output shaft of stator, be provided with slip ring, so that an electric current that produces is derived.And on the output shaft at two ends, respectively be provided with wind wheel, and be opposite direction rotation respectively.Lower end at support is provided with solid of rotation, and a side of solid of rotation has pole and wind rudder.When wind-force blew, the wind rudder facing the wind to rotate wind wheel, because of front wind wheel and back wind wheel at intervals, institute is so that two wind wheels can both absorb bigger wind energy, thus the raising wind energy utilization, the increase generated energy.
The beneficial effects of the utility model are, stator and epitrochanterian wind wheel can both absorb the energy of wind preferably, when low wind speed, can obtain than electric current greatly, and also simple in structure, cost of production is low, is widely used in various wind-power electricity generation occasions.
Description of drawings
Fig. 1 is the overview of novel electricity generator
Fig. 2 is the sectional view of novel electricity generator
Wind wheel 11. back wind wheels 12. former domes 13. back air guide sleeve 14. retaining rings 15. fixed supports 16. solid of rotation 17. wind rudders 18. columns before 1. stators, 2. rotors, 3. rotor shafts, 4. stator axis, 5. rotor bearings, 6. stator bearings, 7. slip rings, 8. front covers, 9. rear end covers 10. among the figure.
Embodiment
As Fig. 1, Fig. 2, rotor 2 is housed in the stator 1, rotor 2 is provided with rotor shaft 3, the two ends of rotor shaft 3 are respectively equipped with rotor bearing 5, be respectively equipped with front cover 8, rear end cover 9 at the two ends of stator 1, be provided with stator axis 4 at the center of front cover 8, on stator axis 4 and rear end cover, be respectively equipped with stator bearing 6, on stator axis 4, also be provided with slip ring 7.Wind wheel 10 is arranged on stator axis 4, wind wheel 10 front ends have former dome 12, be provided with wind wheel 11 on rotor shaft 3, be provided with back air guide sleeve 13 at the front end of wind wheel 11, stator axis 4, rotor shaft 3 are fused by bearing 6, bearing 5 and retaining ring 14 and fixed support 15 and solid of rotation 16 respectively.Side at solid of rotation is provided with wind rudder 17, is provided with column 18 in the lower end of solid of rotation 16.During wind wheel 10, preceding wind wheel begins to rotate before wind-force blows to, and when entering into back wind wheel 11, back wind wheel 11 is the opposite direction rotation with preceding wind wheel 10.Stator 1 and rotor 2 are reversed mutually, and cutting magnetic line strengthens, and generating efficiency improves.The utility model utilizes aerodynamic principle, make two wind wheels at intervals, the abatement of wind behind the wind wheel 10 before wind-force blows to the first order like this, form low pressure area, and when the wind wheel 11 of back, under the powerful wind and high pressure effect of wind wheel periphery, form high wind again and blow to wind wheel 11 behind the second level again, make two wind wheels all utilize the energy of wind fully, thereby improve Wind Power Utilization efficient, increase generated energy.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified to the equivalent embodiment of equivalent variations, but every technical solutions of the utility model content that do not break away from,, all still belong in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present utility model.