CN202659422U

CN202659422U - Magnetic suspension wind driven generator

Info

Publication number: CN202659422U
Application number: CN 201220306290
Authority: CN
Inventors: 李易之
Original assignee: TIANJIN CHENGUANG MINGDU TECHNOLOGY DEVELOPMENT CO LTD
Current assignee: TIANJIN CHENGUANG MINGDU TECHNOLOGY DEVELOPMENT CO LTD
Priority date: 2012-06-28
Filing date: 2012-06-28
Publication date: 2013-01-09
Anticipated expiration: 2022-06-28

Abstract

The utility model discloses a magnetic suspension wind driven generator. The magnetic suspension wind driven generator comprises a base, a stator, a rotor and at least two fan blades, wherein a circular-tube-shaped stator is vertically arranged at the upper end of the base; the rotor is a circular tube with a closed upper end and an open lower end, and is sleeved outside the upper part of the stator from top to bottom; a magnetic suspension bearing is respectively arranged on each of the outer part of the stator and the inner part of the rotor; through the repulsion force between the magnetic suspension bearings, the rotor and the fan blades are both in a suspended state; and the fan blades are of spherical strip type.

Description

Magnetic suspending wind turbine generator

Technical field

The utility model relates to a kind of magnetic suspending wind turbine generator, relates in particular to street lighting special small magnetic suspending wind turbine generator.

Background technique

The prior art magnetic suspending wind turbine generator causes the rotor suspension state with magnetic pole in opposite directions; rotary electrification under the effect of wind-force; because global energy crisis; utilizing wind energy has been one of important source of every country new energy; under existing situation; the further investigation of wind generating technology has caused the attention of respectively enclosing; the prior art magnetic suspending wind turbine generator can not effectively utilize the vast low wind speed resource of China; there is following deficiency; affected popularizing and development of wind-power electricity generation: 1, low wind speed does not start, and could generate electricity when only having wind speed greater than 4 meter per second.And China has extremely wide low wind speed resource, also can't effectively be used; 2, wind-driven generator outwork environment is abominable, and under dust storm, sleet, high and low temperature environment, bearing life shortens greatly, and general 2-3 just needs overhaul.3, wind-driven generator generally is that level is facingd the wind, complex structure, and the nonsymmetry of balance causes mechanical shock, and the noise of generation is also large, and anti-high wind performance is also poor.

The model utility content

Technical problem to be solved in the utility model is, a kind of magnetic suspending wind turbine generator is provided, it is not high that the design starting point of this blower fan is based on wind speed, wind-force is little, the indefinite avenue of wind direction uses, to guarantee simultaneously generating efficiency and the Security of blower fan under high wind, also paid attention to simultaneously handsome in appearance, with solar cell, light fixture, lamp stand and road are coordinated mutually, become a scape of the appearance of the city, it is developed and develop the utilization of wind energy and popularizes far reaching significance, can conscientiously solve the city, the road in rural area, garden, view, advertisement, traffic is to the requirement of illuminating power, and the utility model is absorbed in the deficiency of wind-driven generator in the street lighting wind-light complementary system.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A kind of magnetic suspending wind turbine generator, comprise base, stator, rotor and fan blade, the base upper end vertically arranges the stator of a circular tube shaped, rotor is the open pipe in a upper end closed and lower end, the outside of stator and the inside of rotor are installed with respectively magnetic suspension bearing, against the repulsive force between the magnetic suspension bearing, it is the sphere strip that rotor and fan blade are in this fan blade of state of suspension, at least two of fan blade quantity.

And this fan blade surface is covered with continuous circular cambered surface pit.

And this rotor can fluctuate with the variation of the gentle stream of wind speed, and the height of lifting is as requested design in advance.

And this magnetic suspension bearing adopts multiple permanent magnet body combination technique.

And, increased spherical steel ball at this stator top.

And, leave the make progress space of buoyance lift of rotor in this magnetic suspension bearing.

The beneficial effects of the utility model are:

1. the utility model magnetic suspending wind turbine generator adopts multistage Nd-Fe-B permanent magnet combination technique, makes generator amature under magnetic suspension state, relies on the Wind power propelling fan blade, makes the generating of rotor and cutting magnetic line.

2. magnetic suspending wind turbine generator adopts vertical shaft that rotation mode is installed, and box haul changes and changes the axle center, and is designed to a kind of mechanical structure of full symmetric, can start the fan blade rotation when wind-force 〉=1 meter per second, utilizes breeze wind.

3. the utility model adopts sphere bar shaped fan blade, has overcome the profile of smooth streamline, can improve wind energy utilization.

4. magnetic suspension bearing need not the corrosion protection of lubricated energy, and is antirust, protection against the tide, and waterproof, sand-proof, anti-aging, the characteristics such as anti-high wind, the maintenance phase is 20 years.

5. owing to having adopted the steel ball of top spheroidal, also only influential to breeze wind even fault has occured in magnetic suspension, when wind speed during greater than 2 meter per second, still can continue normal power generation, can not hinder rotor with air-flow and wind speed lifting yet.

Description of drawings

Fig. 1 is the utility model magnetic suspending wind turbine generator sectional view.

Fig. 2 is the sphere bar shaped blade structure schematic diagram of the utility model magnetic suspending wind turbine generator.

The number in the figure explanation:

1: rotor 2: steel ball

3: combination permanent magnet 4: stator

5: base 6: rotor coil

7: the height 8 that rotor promotes: fan blade

9: lightning conductor

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model magnetic suspending wind turbine generator is described in further detail:

The utility model magnetic suspending wind turbine generator comprises base 5, stator 4, rotor 1 and fan blade 8, base 5 lower ends can magnetic suspending wind turbine generator fixedly secure blower fan, base 5 upper ends vertically arrange the stator 4 of a circular tube shaped, rotor 1 is the open circular tube shaped in a upper end closed and lower end, the external diameter of the internal diameter size stator 4 of rotor 1, rotor 1 from top to down vertically is enclosed within the outside, top of stator 4, fan blade 8 sphere bar shaped flabellums, fan blade 8 is installed in rotor 1 outside, for guaranteeing accurate positioning, can weld first some fixed projections in the section of locating of rotor 1, at fixed projection a plurality of fixed holes are set, corresponding site at fan blade 8 arranges a plurality of mounting holes simultaneously, pass every group of fixed hole and mounting hole with screw or bolt during installation, fan blade 8 and rotor 1 are combined, fan blade 8 is the sphere strip, the width of fan blade 8 will be according to actual needs, usually central angle gets final product to 20 degree at 10 degree, the quantity of fan blade 8 is more than two, be preferably 4 in the practice, because so relatively more symmetrical, and wind-engaging is effective, non-interference.

The outside of stator and the inside of rotor are installed with respectively magnetic suspension bearing, and against the repulsive force between the magnetic suspension bearing, rotor and fan blade are in state of suspension.

Fan blade 8 surfaces of magnetic suspending wind turbine generator had both comprised outer surface, also comprised internal surface, be covered with continuous pit, pit be shaped as circular cambered surface, make me when making, after machining goes out pit in batches on the blank, blank is carried out Metal Cutting, shape at last and just form fan blade 8.

The rotor of magnetic suspending wind turbine generator can fluctuate with the variation of the gentle stream of wind speed, and the height 7 of lifting designs in advance as requested.

The magnetic suspension bearing of magnetic suspending wind turbine generator adopts multiple permanent magnet body combination technique, multiple permanent magnet body combination technique refers to, a plurality of little permanent magnets are arranged along annular trace, the N utmost point of a little permanent magnet is facing to the S utmost point of the little permanent magnet in front, the S utmost point of this little permanent magnet is then faced toward by the N utmost point of the little permanent magnet in back, so moves in circles, and is keeping small slit between each little permanent magnet, this structure is fixed, and namely is called magnetic suspension bearing.Two such magnetic suspension bearings are setting up and down as one group, owing to its existence of repulsive force between the two makes the magnetic suspension bearing of top be in state of suspension, can not fall.The such magnetic suspension bearing of many groups then can make suspending power be doubled and redoubled, and is referred to as multiple permanent magnet body combination technique.

The lower inside of the rotor of magnetic suspending wind turbine generator has been installed annular rotor coil 6, and during normal operation, rotor coil 6 does not contact with stator 1, rotor coil 6 because of with the magnetic force dissection of magnetic suspension bearing, can directly produce electric energy.

The top of the stator 4 of magnetic suspending wind turbine generator is slightly to locating the outstanding reinforcement position that forms, strengthen the top, position a downward depression is arranged, the center, inwall top of rotor is depression that makes progress of corresponding formation also, two depressions increase the steel ball 2 that is provided with a sphere, steel ball 2 surfaces arrange some lubriation materials, in case magnetic suspension bearing is at startup, debugging or ageing step damage magnet.

Leave the make progress space of buoyance lift of rotor in the magnetic suspension bearing of magnetic suspending wind turbine generator.

In order to protect lightning strike, on the top of rotor lightning conductor 9 has been installed.

After the installation, when there being wind to arrive fan blade 8, fan blade 8 and rotor 1 are again one, and fan blade 8 is because suspend with rotor 1, so resistance is very little, thereby by rotating that wind-force blows.Or because fan blade 8 and rotor 1 are one, this moment, rotor 1 rotated round stator 4.Because relative displacement has produced the magnetic force cutting, mechanical energy is converted into electric energy, and rotor coil 6 begins generating.

During quick rotation, fan blade 8 looks and becomes a spheroid or oblate spheroid, in order to accelerate the moving rotary speed of fan blade 8, fan blade 8 is the sphere strip, make fan blade 8 two sides can both bear wind-force, fan blade 8 surfaces have been covered with garden arc pit, having increased again connecing of air can area, fan blade 8 is stressed large, compared with the prior art, and on the one hand, same wind obtains more energy, also can generate electricity under less wind-force effect, on the other hand, the lift of rotor 1 is large, the height 7 that promotes just obviously is better than like product, this just means that suspending power is remarkable, can not be stuck because running up, so the utility model generating effect significantly surmounts the prior art level.

Fan blade 8 surfaces have been covered with the circular arc pit, pit can increase the surface area of fan blade 8 effectively, formed again rough surface, overcome the profile of smooth streamline, because the viscosity of air plays a major role during low wind speed, the boundary layer of air on fan blade 8 surfaces interior between the air molecule when flowing through fan blade 8 surface produces surface friction drag in friction, just can drive fan blade 8 rotations when this frictional force is enough large.The size of this frictional force and fan blade 8 surface areas are directly proportional, also relevant with fan blade 8 surface configurations, the skin friction that more streamline is more smooth is less, the wind energy power of catching that the fan blade 8 that therefore is covered with pit can be enhanced about more than once when the gentle breeze than the fan blade 8 of smooth streamline.

Fan blade 8 adopts titanium alloy or composite material, and is very light and handy, has again high intensity, and fan blade 8 can obtain maximum wind sweeping area with the quality of minimum, can greatly strengthen the generating capacity of blower fan under gentle breeze.

When high wind, the frictional force that the air viscosity produces in the boundary layer can not considered, circular pit flow line influential effect under high wind is very little, the profile of fan blade 8 is principal elements, sphere streamline fan blade 8 resistance of air are little, aerodynamic efficiency is high, reynolds' number is enough large, spherical blade can produce High Rotation Speed lift when High Rotation Speed, be difficult for occuring flow separation, because pit can impel Transitional And Turbulent Flow to occur, the arc pit that is covered with makes fan blade 8 can produce side direction lift again, and these two lift are substantially equal, this double lift makes rotor 1 buoyance lift that can make progress, really be operated in vacant state, and can alleviate the burden of magnetic repulsion, can improve wind energy utilization 30% to 50%.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.

In sum, the utility model is on structural design, use practicability and cost benefit, meet industry development fully required, and the structure that discloses also is to have unprecedented innovative structure, have novelty, creativeness, practicability, the regulation that meets relevant new patent important document is therefore mention application in accordance with the law.

Claims

1. magnetic suspending wind turbine generator, comprise base, stator, rotor and fan blade, the base upper end vertically arranges the stator of a circular tube shaped, rotor is the open pipe in a upper end closed and lower end, the rotor from top to down is enclosed within the outside, top of stator, the outside of stator and the inside of rotor are installed with respectively magnetic suspension bearing, against the repulsive force between the magnetic suspension bearing, rotor and fan blade are in state of suspension, it is characterized in that: described fan blade (8) is the sphere strip, at least two of fan blade quantity.

2. magnetic suspending wind turbine generator according to claim 1, it is characterized in that: described fan blade (8) surface is covered with continuous circular cambered surface pit.

3. magnetic suspending wind turbine generator according to claim 1, it is characterized in that: described rotor (1) can fluctuate with the variation of the gentle stream of wind speed, and the height of lifting (7) is as requested design in advance.

4. magnetic suspending wind turbine generator according to claim 1 is characterized in that: described magnetic suspension bearing employing multiple permanent magnet body combination technique formation.

5. magnetic suspending wind turbine generator according to claim 1 is characterized in that: increased spherical steel ball (2) at described stator (4) top.

6. magnetic suspending wind turbine generator according to claim 1 is characterized in that: leave the upwards space of buoyance lift of rotor (1) in the described magnetic suspension bearing.