CN108301971A - Micro wind turbine generator antioverloading wind wheel structure and micro wind turbine generator - Google Patents
Micro wind turbine generator antioverloading wind wheel structure and micro wind turbine generator Download PDFInfo
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- CN108301971A CN108301971A CN201810229538.8A CN201810229538A CN108301971A CN 108301971 A CN108301971 A CN 108301971A CN 201810229538 A CN201810229538 A CN 201810229538A CN 108301971 A CN108301971 A CN 108301971A
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- antioverloading
- turbine generator
- wind turbine
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- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 239000000523 sample Substances 0.000 claims abstract description 14
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 7
- 238000010248 power generation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0256—Stall control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0236—Adjusting aerodynamic properties of the blades by changing the active surface of the wind engaging parts, e.g. reefing or furling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
Abstract
A kind of micro wind turbine generator antioverloading wind wheel structure of present invention offer and micro wind turbine generator, are related to technical field of wind power generating equipment.The structure includes:Wheel hub, wheel hub include blade mounting hole and axis hole, and hub interior has the first accommodating chamber.Flexible blade, flexible blade are rotatably coupled with wheel hub and in blade mounting holes, and the inside for the blade that stretches has the second accommodating chamber.Driving mechanism, driving mechanism include telescopic drive part and rotating drive part, and rotating drive part is sequentially connected with telescopic drive part and telescopic drive part can be driven to rotate.Antioverloading control assembly, antioverloading control assembly include controller and speed probe, and speed probe is used to be arranged the hatch cover in micro wind turbine generator and detects the rotating speed of wheel hub and to controller feedback signal, speed probe has first threshold.Micro wind turbine generator antioverloading wind wheel structure can complete antioverloading work, also eliminate braking mechanism for micro wind turbine generator.
Description
Technical field
The present invention relates to technical field of wind power generating equipment, in particular to a kind of micro wind turbine generator antioverloading
Wind wheel structure and micro wind turbine generator.
Background technology
Wind-driven generator is to convert wind energy into mechanical work, and mechanical work drives rotor rotation, the electricity of final output alternating current
Power equipment.Wind-driven generator generally have wind wheel, generator (including device), direction-regulator (empennage), pylon, speed-limiting safety mechanism and
The components such as energy storage device form.
The operation principle of wind-driven generator is fairly simple, and wind wheel rotates under the action of the forces of the wind, the kinetic energy transformation that it keeps watch
For the mechanical energy of rotor shaft, generator rotary electrification under the drive of rotor shaft.In a broad sense, wind energy is also solar energy, so
Alternatively wind-driven generator is one kind using the sun as heat source, using air as the heat energy utilization generator of working media.
Generated output is generally referred to as small-sized wind power generator or miniature in 10 kilowatts and its wind-driven generator below
Wind-driven generator.Small-sized wind power generator is mainly made of following sections:Wind wheel, generator, revolving body, speed adjusting gear, tune
To mechanism, braking mechanism and pylon.
It is excessive when encountering wind-force, it when wind speed round is too fast, can prevent from overloading by the intervention of braking mechanism, but stop
Mechanism of car itself can occupy installation space certain in hatch cover, and in limited installation space, the presence of braking mechanism is on the one hand
Increase assembly difficulty, on the one hand decreases the possibility for installing more mechanisms in hatch cover.
Invention content
The purpose of the present invention is to provide a kind of micro wind turbine generator antioverloading wind wheel structures, can prevent wind turbine mistake
It carries.
Another object of the present invention is to provide a kind of micro wind turbine generator comprising above-mentioned minitype wind power power generation
Machine antioverloading wind wheel structure, the complete characteristic with the micro wind turbine generator antioverloading wind wheel structure.
What the embodiment of the present invention was realized in:
The embodiment provides a kind of micro wind turbine generator antioverloading wind wheel structures, including:
Wheel hub, the wheel hub include the blade mounting hole for installing wind wheel blade and the axis for being installed with rotor shaft
Hole, the hub interior have the first accommodating chamber;
Flexible blade, the flexible blade are rotatably coupled with the wheel hub and in the blade mounting holes, institute
There is the second accommodating chamber, the flexible blade can extend or shorten in length direction for the inside for stating flexible blade;
Driving mechanism, the driving mechanism include telescopic drive part and rotating drive part, the rotating drive part with it is described
Telescopic drive part is sequentially connected and the telescopic drive part can be driven to rotate, and the rotating drive part, which is set to described first, to be held
Receive intracavitary, the telescopic drive part includes pedestal and flexible output end, and the flexible output end is separate with the flexible blade
One end of the wheel hub connects, and the pedestal is set in second accommodating chamber and is connect with the flexible blade;
Antioverloading control assembly, the antioverloading control assembly include controller and speed probe, the revolution speed sensing
Device is used to be arranged the hatch cover in micro wind turbine generator and detects the rotating speed of the wheel hub and to the controller feedback signal, institute
Stating speed probe has first threshold;
When the rotating speed of the wheel hub is more than first threshold, the controller controls the driving mechanism and works, described turn
The pedestal is made to rotate for dynamic actuator and the blade face for driving the flexible blade to turn to the flexible blade is vertical with wind direction, institute
Flexible output end is stated to shrink and drive the flexible vanes retract.
In addition, the micro wind turbine generator antioverloading wind wheel structure provided according to an embodiment of the invention, can also have
Following additional technical characteristic:
In the alternative embodiment of the present invention, the flexible blade includes the first leaf portion, the second leaf portion and third leaf portion, institute
The inside of the third leaf portion can be accommodated in by stating the second leaf portion, and the third leaf portion can be accommodated in the interior of first leaf portion
Portion, one end and the wheel hub of first leaf portion are rotatably coupled.
In the alternative embodiment of the present invention, the flexible output end is connect with the third leaf portion.
In the alternative embodiment of the present invention, second leaf portion and the third leaf portion are rectangle.
In the alternative embodiment of the present invention, the quantity of the flexible blade is three, three flexible blade difference
A corresponding driving mechanism, three driving mechanisms are centrosymmetric distribution.
In the alternative embodiment of the present invention, the telescopic drive part is cylinder or electric cylinders.
In the alternative embodiment of the present invention, the rotating drive part is servo motor.
In the alternative embodiment of the present invention, the antioverloading control assembly further includes air velocity transducer, and the wind speed passes
For sensor for the hatch cover in micro wind turbine generator to be arranged and detects wind speed, the detection signal of the air velocity transducer feeds back to institute
Controller is stated, the air velocity transducer has second threshold;
After the flexible vanes retract, when the air velocity transducer, which measures wind speed, keeps below the second threshold, institute
It states controller and controls the driving mechanism work, the telescopic drive part driving flexible blade is unfolded into from contraction state to be stretched
Long status, the rotating drive part drive the telescopic drive part to rotate and the flexible blade is driven to turn to blade face and wind direction
With angle.
In the alternative embodiment of the present invention, the micro wind turbine generator antioverloading wind wheel structure further includes radome fairing,
The radome fairing is connect with the side far from the axis hole of the wheel hub.
The embodiment provides a kind of micro wind turbine generators, including minitype wind power described in any one of the above embodiments to send out
Motor antioverloading wind wheel structure.
The beneficial effects of the invention are as follows:
Micro wind turbine generator antioverloading wind wheel structure is controlled by wheel hub, flexible blade, driving mechanism and antioverloading
The cooperation of component can complete antioverloading work, also eliminate braking mechanism for micro wind turbine generator, vacate more installations
Space.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the schematic diagram for the micro wind turbine generator antioverloading wind wheel structure that the embodiment of the present invention 1 provides;
Fig. 2 is the schematic diagram of wheel hub;
Fig. 3 is the schematic diagram of flexible blade;
Fig. 4 is driving mechanism and flexible blade and the scheme of installation of wheel hub;
Fig. 5 is the side view of the driving mechanism and flexible blade of Fig. 4.
Icon:100- micro wind turbine generator antioverloading wind wheel structures;10- wheel hubs;11- blade mounting holes;13- axis holes;
30- stretches blade;The first leaf portions of 33-;The second leaf portions of 35-;37- third leaf portions;51- telescopic drive parts;512- pedestals;514- stretches
Contracting output end;53- rotating drive parts;71- controllers;73- speed probes;75- air velocity transducers;80- radome fairings;The cabins 200-
Cover.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that:Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "inner", "outside" is base
In orientation or positional relationship shown in the drawings or the invention product using when the orientation or positional relationship usually put, only
It is that for convenience of description of the present invention and simplification of the description, not indicating or implying the indicated device or element must have specifically
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " the
Two " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;Can be
Mechanical connection can also be electrical connection;It can be directly connected, can also can be indirectly connected through an intermediary two
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
In concrete meaning.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be on or below second feature
Be in direct contact including the first and second features, can also include the first and second features not be in direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature second spy
Right over sign and oblique upper, or be merely representative of fisrt feature level height and be higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or be merely representative of fisrt feature level height
Less than second feature.
Embodiment 1
Fig. 1 to Fig. 5 is please referred to, a kind of micro wind turbine generator antioverloading wind wheel structure 100 is present embodiments provided, is wrapped
It includes:
Wheel hub 10, wheel hub 10 include the blade mounting hole 11 for installing wind wheel blade and the axis for being installed with rotor shaft
Hole 13,10 inside of wheel hub have the first accommodating chamber;
Flexible blade 30, flexible blade 30 are rotatably coupled with wheel hub 10 and in blade mounting holes 11, and stretch leaf
There is the second accommodating chamber, flexible blade 30 can extend or shorten in length direction for the inside of piece 30;
Driving mechanism, driving mechanism include telescopic drive part 51 and rotating drive part 53, and rotating drive part 53 drives with flexible
Moving part 51 is sequentially connected and telescopic drive part 51 can be driven to rotate, and rotating drive part 53 is set in the first accommodating chamber, stretches
Actuator 51 includes pedestal 512 and flexible output end 514, and stretch output end 514 and the one of the separate wheel hub 10 of flexible blade 30
End connection, pedestal 512 are set in the second accommodating chamber and are connect with flexible blade 30;
Antioverloading control assembly, antioverloading control assembly include controller 71 and speed probe 73, speed probe 73
For the hatch cover 200 in micro wind turbine generator to be arranged and detects the rotating speed of wheel hub 10 and to 71 feedback signal of controller, rotating speed
Sensor 73 has first threshold;
When the rotating speed of wheel hub 10 is more than first threshold, controller 71 controls driving mechanism work, and rotating drive part 53 makes
Pedestal 512 rotates and the blade face for driving the blade 30 that stretches to turn to flexible blade 30 is vertical with wind direction, and the output end 514 that stretches is shunk
And the blade 30 that stretches is driven to shrink.
About flexible blade 30, particularly, the blade 30 that stretches includes the first leaf portion 33, the second leaf portion 35 and third leaf portion
37, the second leaf portion 35 can be accommodated in the inside of third leaf portion 37, and third leaf portion 37 can be accommodated in the inside of the first leaf portion 33,
One end of first leaf portion 33 is rotatably coupled with wheel hub 10.
Wherein, the output end 514 that stretches is connect with third leaf portion 37.Output end is by driving third leaf portion 37, energy in this way
Enough so that the second leaf portion 35 is incorporated into third leaf portion 37, and then third leaf portion 37 takes in the first leaf portion 33 again, promoted shrink or
Efficiency when counteragent extends.
More specifically, the second leaf portion 35 and third leaf portion 37 are rectangle.It is all that rectangle makes the second leaf portion 35
Storage between third leaf portion 37 can be matched more, further increase storage efficiency.
In the present embodiment, the quantity of flexible blade 30 is three, and three flexible blades 30 correspond to a driving machine respectively
Structure, three driving mechanisms are centrosymmetric distribution.
In the present embodiment, telescopic drive part 51 is cylinder or electric cylinders.The control of telescopic process in this way is simple and direct.
Pedestal 512 is cylinder or the cylinder body of electric cylinders.
In the present embodiment, rotating drive part 53 is servo motor.Servo motor is conducive to accurately control, more in rotation
It reliably, can be effectively so that flexible blade 30 turns to required angle.
Further, antioverloading control assembly further includes air velocity transducer 75, and air velocity transducer 75 is for being arranged micro-
The hatch cover 200 of type wind-driven generator simultaneously detects wind speed, and the detection signal of air velocity transducer 75 feeds back to controller 71, wind speed sensing
Device 75 has second threshold;
After flexible blade 30 is shunk, when air velocity transducer 75, which measures wind speed, keeps below second threshold, controller 71 is controlled
Driving mechanism work processed, the flexible blade 30 of the driving of telescopic drive part 51 unfold into elongation state, rotating drive part from contraction state
53 driving telescopic drive parts 51, which rotate and flexible blade 30 is driven to turn to blade face and wind direction, has angle.
This is allowed for when extraneous wind-force is suitble to power generation, and flexible blade 30 can be resumed as former state, ensures normal accept
Wind-force is come the function that generates electricity.
Wherein, controller 71 can be microcontroller, PLC or DSP, these are all that control commonly used in the prior art is set
It is standby.Speed probe 73 and air velocity transducer 75 and in the prior art existing device, details are not described herein again.
Wherein, when second threshold refers to so that wind speed makes 30 rotating speed of flexible blade be more than the first threshold of speed probe 73
Speed.
Others, micro wind turbine generator antioverloading wind wheel structure 100 further include radome fairing 80, radome fairing 80 and wheel hub 10
Separate axis hole 13 side connection.The structure of radome fairing 80 is referred to the rectification of small-sized wind power generator in the prior art
Cover 80, details are not described herein again.
The principle of the present embodiment is:
In order to save the installation space of braking mechanism, the present embodiment designs on 200 outside of hatch cover and wind wheel, anti-
Only in the case of wind turbine overload, braking mechanism is also eliminated.
Specifically, when normal power generation, the blade face of flexible blade 30 has certain angle with wind direction, just facilitates in this way
Flexible blade 30 is blown and generated electricity by wind.
In wind-force prosperity, the rotation of wind wheel may lead to the whole overload that generates electricity due to too fast, this can influence equipment
Normal power generation even result in equipment damage.Since the rotation of wheel hub 10 is consistent with the velocity of rotation of flexible blade 30, make
The rotating speed of wheel hub 10 is detected with speed probe 73.
Rotating speed when will overload is the first threshold of speed probe 73, when rotating speed reaches first threshold, control
Device 71 receives signal, and sends out instruction to driving mechanism, the case where to cope with overload.
Specifically, rotating drive part 53 is so that the pedestal 512 of telescopic drive part 51 rotates, it is defeated due to telescopic drive part 51
Outlet is connected and fixed with third leaf portion 37, when telescopic drive part 51 is rotated by control, flexible blade 30 will also be driven to rotate, from
And make the blade face of flexible blade 30 from wind direction there is angle to become vertical, it should be noted that angle refers to acute angle.
When the blade face of flexible blade 30 is vertical with wind direction, the rotating speed for the blade 30 that stretches can be decreased obviously, and in order into
One step reduces the rotating speed for the blade 30 that stretches, and protects the blade 30 that stretches not to be damaged in wind-force prosperity, and telescopic drive part 51 starts
Work.
Output end is shunk, to drive third leaf portion 37 to be moved towards the first leaf portion 33, finally so that 35 quilt of the second leaf portion
Third leaf portion 37 is taken in, third leaf portion 37 is incorporated into the first leaf portion 33 so that the rotation of flexible blade 30 greatly reduces even
Stop, after the first leaf portion 33, the second leaf portion 35 and third leaf portion 37 overlap, intensity also gets a promotion, in this way in wind-force prosperity
In the case of be also more hardly damaged.
When wind-force gradually weakens, and air velocity transducer 75 detects that wind speed is less than second threshold, controller 71 is controlled and is driven again
Motivation structure counteragent, so that flexible blade 30 re-expands and becomes the angle that can be rotated to continue to generate electricity.
The micro wind turbine generator antioverloading wind wheel structure 100 of the present embodiment, passes through driving mechanism, antioverloading control assembly
Coordinate action of the flexible blade 30 on wheel hub 10, to can be timely when the velocity of rotation of flexible blade 30 will overload
Containment, avoided the damage brought.Even if in addition, not being that wind-force is excessive, when equipment will overload, will stretch if necessary
Leaf curl piece 30 stops, and can also be realized by the control of controller 71, it is only necessary to control driving mechanism work so that stretch
Leaf curl piece 30 rotates into vertical with wind direction and becomes contraction state, with meet demand.In this way, even without braking mechanism,
It can contain the movement of flexible blade 30 by micro wind turbine generator antioverloading wind wheel structure 100, braking machine can be saved
Structure.
Embodiment 2
Present embodiments provide the micro wind turbine generator antioverloading in a kind of micro wind turbine generator, including embodiment 1
Wind wheel structure 100.
The other structures and component of micro wind turbine generator can refer to micro wind turbine generator in the prior art, herein
It repeats no more.
By using the micro wind turbine generator antioverloading wind wheel structure 100 in embodiment 1, micro wind turbine generator can
It avoids overloading, and the installation space of braking mechanism can also be saved, in order to install other components for being conducive to use or control,
Realize that other function provides possibility for micro wind turbine generator, it is very handy.
In conclusion the micro wind turbine generator antioverloading wind wheel structure 100 of the present invention passes through wheel hub 10, flexible blade
30, the cooperation of driving mechanism and antioverloading control assembly can complete antioverloading work, also be saved for micro wind turbine generator
Braking mechanism, vacates more installation spaces.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of micro wind turbine generator antioverloading wind wheel structure, which is characterized in that including:
Wheel hub, the wheel hub include the blade mounting hole for installing wind wheel blade and the axis hole for being installed with rotor shaft, institute
Stating hub interior has the first accommodating chamber;
Flexible blade, the flexible blade is rotatably coupled with the wheel hub and in the blade mounting hole, described to stretch
There is the second accommodating chamber, the flexible blade can extend or shorten in length direction for the inside of leaf curl piece;
Driving mechanism, the driving mechanism include telescopic drive part and rotating drive part, and the rotating drive part stretches with described
Actuator is sequentially connected and the telescopic drive part can be driven to rotate, and the rotating drive part is set to first accommodating chamber
Interior, the telescopic drive part includes pedestal and flexible output end, and the flexible output end is with the flexible blade far from described
One end of wheel hub connects, and the pedestal is set in second accommodating chamber and is connect with the flexible blade;
Antioverloading control assembly, the antioverloading control assembly include controller and speed probe, and the speed probe is used
In the hatch cover being arranged in micro wind turbine generator and detect the rotating speed of the wheel hub and to the controller feedback signal, described turn
Fast sensor has first threshold;
When the rotating speed of the wheel hub is more than first threshold, the controller controls the driving mechanism work, and the rotation is driven
Moving part makes the pedestal rotate and the blade face for driving the flexible blade to turn to the flexible blade is vertical with wind direction, described to stretch
Contracting output end shrinks and drives the flexible vanes retract.
2. micro wind turbine generator antioverloading wind wheel structure according to claim 1, which is characterized in that the flexible blade
Including the first leaf portion, the second leaf portion and third leaf portion, second leaf portion can be accommodated in the inside of the third leaf portion, described
Third leaf portion can be accommodated in the inside of first leaf portion, and one end and the wheel hub of first leaf portion rotationally connect
It connects.
3. micro wind turbine generator antioverloading wind wheel structure according to claim 2, which is characterized in that the flexible output
End is connect with the third leaf portion.
4. micro wind turbine generator antioverloading wind wheel structure according to claim 2, which is characterized in that second leaf portion
It is rectangle with the third leaf portion.
5. micro wind turbine generator antioverloading wind wheel structure according to claim 1, which is characterized in that the flexible blade
Quantity be three, three flexible blades correspond to a driving mechanism respectively, and three driving mechanisms are in center
It is symmetrical.
6. micro wind turbine generator antioverloading wind wheel structure according to claim 1, which is characterized in that the telescopic drive
Part is cylinder or electric cylinders.
7. micro wind turbine generator antioverloading wind wheel structure according to claim 1, which is characterized in that the rotation driving
Part is servo motor.
8. micro wind turbine generator antioverloading wind wheel structure according to claim 1, which is characterized in that the antioverloading control
Component processed further includes air velocity transducer, and the air velocity transducer is for being arranged the hatch cover in micro wind turbine generator and detecting wind
The detection signal of speed, the air velocity transducer feeds back to the controller, and the air velocity transducer has second threshold;
After the flexible vanes retract, when the air velocity transducer, which measures wind speed, keeps below the second threshold, the control
Device processed controls the driving mechanism work, and the telescopic drive part drives the flexible blade to unfold into elongate from contraction state
State, the rotating drive part, which drives the telescopic drive part to rotate and the flexible blade is driven to turn to blade face and wind direction, to be had
Angle.
9. micro wind turbine generator antioverloading wind wheel structure according to claim 1, which is characterized in that the minitype wind power
Generator antioverloading wind wheel structure further includes radome fairing, and the side far from the axis hole of the radome fairing and the wheel hub connects
It connects.
10. a kind of micro wind turbine generator, which is characterized in that generate electricity including claim 1-9 any one of them minitype wind powers
Machine antioverloading wind wheel structure.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109707568A (en) * | 2018-11-26 | 2019-05-03 | 许建林 | A kind of wind turbine power generation device |
CN110374793A (en) * | 2019-07-02 | 2019-10-25 | 中国大唐集团新能源科学技术研究院有限公司 | Variable-length pneumatic equipment bladess device |
CN112594115A (en) * | 2020-12-11 | 2021-04-02 | 华东桐柏抽水蓄能发电有限责任公司 | Temperature control device of hydroelectric generator |
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CN112594115B (en) * | 2020-12-11 | 2022-05-10 | 华东桐柏抽水蓄能发电有限责任公司 | Temperature control device of hydroelectric generator |
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