Wind power plant
Technical field
The utility model relates to a kind of wind power plant, belongs to the technical field that wind power plant is manufactured.
Background technique
Wind resource be inexhaustible usefulness it is without cease, utilize the wind-power electricity generation can environmental contamination reduction, save the conventional energy resources such as coal, oil.Wind generating technology is ripe, and cost is relatively low in renewable energy sources, and vast potential for future development is arranged.Wind generating technology can flexible Application, both can be incorporated into the power networks, and also can from the net independent operating, can also form complementary power generation system with other energy technology.But many by rotating shaft or gear mechanism transmitting torque between the blade of existing wind-driven generator and the rotor, usually need higher wind speed to start, be generally 3.5m/s, its application narrow limitation is larger.
Summary of the invention
The utility model purpose is to provide a kind of startup wind speed lower, the wind power plant that the application narrow limitation is less, the problems such as the higher wind speed of needs that has solved existing wind-driven generator existence could start, and is generally 3.5m/s, and its application narrow limitation is larger.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: it comprises a strut, be fixed with annular fan housing shell on the described strut, be mounted with stator assembly in the described annular fan housing shell, described stator assembly comprises a stationary torus mounting plate, be fixed with subloop decided at the higher level but not officially announced and the external stator circle of concentric distribution on the described stationary torus mounting plate, described subloop decided at the higher level but not officially announced is comprised of the even inner stator spaced apart of several circumferencial directions, described external stator circle is comprised of the equally distributed external stator of several circumferencial directions, between subloop decided at the higher level but not officially announced and external stator circle, form ring track, rotor assembly is coaxial and pivotally connected on strut with stator assembly, described rotor assembly is made of rotor fixing frame and the rotor that evenly is distributed on the rotor fixing frame circumference, described rotor fixing frame is made of fixing frame outer ring and fixing frame inner ring, between fixing frame outer ring and fixing frame inner ring, be provided with the fan blade fixed block of some spoke type structures, be fixed with fan blade on the fan blade fixed block, rotor be axially be fixed on projectedly on the fixing frame outer ring and the ring track of the magnet steel of rotor between subloop decided at the higher level but not officially announced and external stator circle in.The utility model directly fixedly on the fixing frame outer ring, makes rotor magnet steel and fan blade rotate synchronously, thereby only needs minimum wind speed to start, and minimum to start wind speed only be 0.2m/s, and its application area is very extensive, can be applicable to family; In addition, the utility model adopts some inner stators to consist of subloop decided at the higher level but not officially announced and adopts some external stators to consist of the external stator circle, and between subloop decided at the higher level but not officially announced and external stator circle, form ring track for the rotor running, thus can be electric energy with the wind energy transformation that drives the fan blade rotation fully, transformation efficiency is higher.
As preferably, the fixing frame inner ring is arrived by some sections fan blade cell formations in described fan blade self-retaining frame outer ring, self-retaining frame outer ring, described some sections fan blade unit is to fixing frame inner ring hem width gradually, thereby can make rotor assembly from the fixing frame outer ring to fixing frame inner ring uniform stressed as far as possible everywhere radially, equipment is turned round more reposefully.
As preferably, increase gradually to the fixing frame inner ring less than the fan blade unit of close fixing frame inner ring and angle and the self-retaining frame outer ring of rotor fixing frame axis near the fan blade unit of fixing frame outer ring and the angle of rotor fixing frame axis in described some fan blades unit, radially oneself obtains utilization repeatedly outside to inside along rotor assembly thereby can make wind, reduces startup wind speed of the present utility model thereby can advance one.
As preferably, the back edge of described annular fan housing shell is provided with the fin blade that two bilateral symmetry distribute, described fin blade from annular fan housing shell edge backward and stretch out, the cross section of fin blade is curved.Wherein, fin blade is set in the rear end of fan housing shell can automatically adjusts the direction of rotor assembly, thus the direction that rotor assembly is come towards wind all the time; And fin blade from annular fan housing shell edge backward and stretch out, and the cross section of fin blade is curved then can to make the more easily direction that is used for adjusting rotor assembly by empennage of wind.
As preferably, described post upper is fixed with cross supporting frame, and the ear end face of described stationary torus mounting plate and cross supporting frame are fixed, and fix thereby can play reliable installation to stator assembly.
As preferably, the front end of described annular fan housing shell forms annular frustum face, and the fixing frame outer ring of described rotor fixing frame is positioned at the rear side of described annular frustum face.The annular frustum face one side that forms the front end of annular fan housing shell can play the waterproof action to rotor, then can play on the other hand the effect of converging to wind, and wind energy is enough concentrated acting on the fan blade.
As preferably, described inner stator and external stator include box body and the lid of a flat, be tightly connected between box body and the lid, be provided with coil rack and the coil winding of winding on coil rack in the sealed cavity that box body and lid consist of, be formed with respectively the first lug and the second lug on the box body He on the lid, described the first lug and the second lug form jointly for inner stator or external stator and stator mounting plate assembly department, are provided with the circuit board that is connected with coil winding at assembly department with the side that the stator mounting plate cooperates.Wherein, coil rack and coil winding are arranged on the waterproof action that can play in the box body of sealing and the lid coil winding, adopt the ultra-sonic welded sealing fixing between box body and the lid; After the stator mounting plate is fixing, can realize stator when inner stator or external stator and be connected with circuit between the stator mounting plate, assemble very convenient.
As preferably, be provided with deep floor between described the first lug and the box body, thereby can improve the reliability that assembly department is connected with box body, and then strengthen the reliable installation of stator on the stator mounting plate.
Therefore, the utlity model has the characteristics such as to start wind speed lower, and the application narrow limitation is less.
Description of drawings
Fig. 1 is a kind of front side of the present utility model perspective view;
Fig. 2 is a kind of rear side perspective view of the present utility model;
Fig. 3 is a kind of front view of the present utility model;
Fig. 4 is the A-A view of Fig. 3;
Fig. 5 is a kind of perspective view of the utility model stator assembly;
Fig. 6 is a kind of structural representation of the utility model inner stator and external stator;
Fig. 7 is a kind of main TV structure schematic diagram of the utility model rotor assembly;
Fig. 8 is a kind of side-looking structural representation of the utility model rotor assembly;
Fig. 9 is the B place enlarged diagram of Fig. 5.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, Figure 2, Figure 3 and Figure 4, be fixed with annular fan housing shell 22 on the strut 21, the front end of annular fan housing shell 22 forms annular frustum face 23, the back edge of annular fan housing shell 22 is provided with the fin blade 24 that two bilateral symmetry distribute, fin blade 24 from annular fan housing shell 22 edges backward and stretch out, the cross section of fin blade 24 is curved.Be mounted with stator assembly 25 in the annular fan housing shell 22, as shown in Figure 5, stator assembly comprises a stationary torus mounting plate 26, and strut 1 upper end is fixed with cross supporting frame 46, and the ear end face of stationary torus mounting plate 26 and cross supporting frame 46 are fixing.Be fixed with subloop decided at the higher level but not officially announced 27 and the external stator circle 28 of concentric distribution on the stationary torus mounting plate 26, subloop 27 decided at the higher level but not officially announced is comprised of the even inner stator 29 spaced apart of 68 circumferencial directions, the external stator circle is comprised of 68 equally distributed external stators 30 of circumferencial direction, between subloop 27 decided at the higher level but not officially announced and external stator circle 28, form ring track 31, as shown in Figure 6, inner stator and external stator include box body 32 and the lid 33 of a flat, adopt ultrasonic welding to be tightly connected between box body 32 and the lid 33, be provided with coil rack and the coil winding (not shown) of winding on coil rack in the sealed cavity that box body 32 and lid 33 consist of, be formed with respectively between the first lug 34 and the second lug 35, the first lugs 34 and the box body 32 on the box body and on the lid and be provided with deep floor 43.The first lug 34 and the second lug 35 form jointly for inner stator or external stator and stator mounting plate assembly department 36, are provided with the circuit board (not shown) that is connected with coil winding at assembly department with the side that the stator mounting plate cooperates.
Such as Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, rotor assembly 37 is coaxial and pivotally connected on strut 1 with stator assembly 25, as shown in Figure 7 and Figure 8, rotor assembly is made of rotor fixing frame 38 and 6 rotors 39 evenly being distributed on the rotor fixing frame circumference, rotor fixing frame 38 is made of fixing frame outer ring 40 and fixing frame inner ring 41, between fixing frame outer ring 40 and fixing frame inner ring 41, be provided with the fan blade fixed block 42 of 15 spoke type structures, such as Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, rotor 39 be axially be fixed on projectedly on the fixing frame outer ring and the ring track of magnet steel 45 between subloop decided at the higher level but not officially announced and external stator circle of rotor in (referring to Fig. 9), be fixed with fan blade 44 on the fan blade fixed block 42, the fixing frame inner ring is arrived by three sections fan blade unit 441 in every fan blade self-retaining frame outer ring, 442 and 443 consist of, fan blade unit 441,442 and 443 self-retaining frame outer rings are to fixing frame inner ring hem width gradually, be that the width of fan blade unit 442 is greater than the width of fan blade unit 441, the width of fan blade unit 443 is greater than the width of fan blade unit 442, the fixing frame outer ring 40 of rotor fixing frame is positioned at the rear side of annular frustum face 23, fan blade unit 441, increase gradually to the fixing frame inner ring less than the fan blade unit 443 of close fixing frame inner ring and angle and the self-retaining frame outer ring of rotor fixing frame axis near the fan blade unit 441 of fixing frame outer ring and the angle of rotor fixing frame axis in 442 and 443.