CN202140248U - Umbrella-shaped wind power device and wind power system - Google Patents
Umbrella-shaped wind power device and wind power system Download PDFInfo
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- CN202140248U CN202140248U CN201120189778U CN201120189778U CN202140248U CN 202140248 U CN202140248 U CN 202140248U CN 201120189778 U CN201120189778 U CN 201120189778U CN 201120189778 U CN201120189778 U CN 201120189778U CN 202140248 U CN202140248 U CN 202140248U
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- umbrella
- acting
- rope
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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
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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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Abstract
The utility model discloses an umbrella-shaped wind power device. The umbrella-shaped wind power device comprises a power rope, a control box, a sliding barrel, a power umbrella, a balancing device, a plurality of strings and an umbrella control rope, wherein the power rope and the ground form a certain angle, the control box, the sliding barrel, the power umbrella and the balancing device are connected on the power rope in sequence, the control box is fixed on the power rope, and is in wireless connection with a central control device, the plurality of strings are connected between an umbrella edge of the power umbrella and the sliding barrel, the umbrella control rope is connected between the control box and the sliding barrel, and the elongation of the umbrella control rope is controlled by the control box. The utility model also discloses a wind power system which is implemented by the umbrella-shaped wind power device. In the utility model, as the umbrella control rope and the power rope are separately controlled, the umbrella-shaped wind power device is easier to control, and the opening and the closing of the power umbrella cannot affect the stability of an air balance system, so that the part of the wind power system provided by the utility model in the air has good stability and controllability; and the stability in the energy transmission realized by power machinery on the ground can be greatly improved.
Description
Technical field
The utility model relates to a kind of wind-energy changing system, especially relates in a kind of wind energy application converting wind energy the umbrella-shaped wind power device of power into, and the wind energy source dynamic system that has adopted the umbrella-shaped wind power device to realize.
Background technique
Along with the development of society, increasing for the demands for energy amount, oneself can't satisfy the needs of modern development traditional energy, and the use meeting of traditional energy causes great burden to environment.The developing novel energy is the necessary of era development, and wind energy is exactly one of representative of novel energy, all is provided with a lot of wind generating units like expressway limit in modern times, and wind resource is to have powerful potential energy source, can the huge energy be provided to us.
Wind energy is a kind of renewable energy sources of cleaning, high altitude wind energy fully can be used to the mankind used, is the much-talked-about topic that scientific research person pays close attention to always.The characteristics of upper wind and high altitude wind energy are: wind speed is big, mean energy density is high, Regional Distribution is wide, stability is high, constantly all the year.Many advantages of high altitude wind energy make it more and more receive the attention of countries in the world.
The utilization of high altitude wind energy is to gather wind energy in the air at height, is mechanical energy with wind energy transformation, at last mechanical energy is converted into the energy of electric energy or other form.
The collection of high altitude wind energy and utilization are the emerging research fields in the worldwide, and the collection of high altitude wind energy and the difficulty of control are high, and the electric energy that causes a lot of common high altitude wind power systems to produce is little and unstable.The mode of utilizing high altitude wind energy to generate electricity in the world mainly contains two kinds: a kind of is that generator is suspended in height in the air; Another kind is that generator is arranged on ground.Generator is suspended in the power generation system in high-altitude, be limited by the weight and volume of air system can not be excessive etc. problem, the aerial part that generator is suspended in the power generation system in high-altitude can not realize better controlled and realize big generated energy.The generator of high-altitude kite generating is arranged on ground, is again the acting body but the kite of kite high altitude wind energy power generation system is a balanced body, between balance and acting, influences each other, and can not realize the effect of well doing work.
Therefore, the power generation system of at present common high altitude wind energy or power system are difficult to realize the stability of high-altitude part control, cause passing to the energy instability of power generation system or working system, can not fully satisfy the demand of human being's production and life.
The model utility content
The utility model proposes a kind ofly to convert wind energy the umbrella-shaped wind power device and the wind energy source dynamic system of power into, realizes the better controlling performance of aerial part, for machine for doing work is stably transmitted energy.
The utility model adopts following technological scheme to realize: a kind of umbrella-shaped wind power device, receive the control of CCU, and it comprises: restrict with the acting that ground is provided with at angle; Be connected to control box, slide cartridge, acting umbrella and Equilibrator on the acting rope from bottom to up in turn, and the fixing acting rope of control box is gone up and the wireless connections CCU; Be connected the umbrella shape edge of acting umbrella and the some cords between the slide cartridge; Be connected between control box and the slide cartridge, and control the umbrella controlling rope that its elongation changes by control box; Wherein, when control box arrives the work lower position on relative ground, first control signal that CCU sends to control box, by control box control with the shorten length of umbrella controlling rope and remain short fixed length; Under wind, make the acting umbrella open and spur the acting rope and rise, when control box arrives the work upper limit position on relative ground, second control signal that CCU sends to control box, by control box control that the length of umbrella controlling rope is elongated; CCU wireless connection control case.
In a preferred embodiment, control box comprises: be used to control the little winch that the elongation of umbrella controlling rope changes, little winch connects slide cartridge through the umbrella controlling rope; Be used for when detecting control box arrival work lower position; Send first cue and send first control signal to trigger CCU; And when detecting control box arrival work upper limit position; Send second cue to trigger the position detector that CCU sends second control signal, this position detector wireless connections CCU.
In a preferred embodiment, said umbrella-shaped wind power device also comprises: be fixedly connected on the block on the acting rope, block is between acting umbrella and Equilibrator.
In a preferred embodiment, when control box arrival work upper limit position, the position at the umbrella shape top of acting umbrella is lower than block.
In a preferred embodiment, Equilibrator comprises: the lift force guiding body that is fixedly connected on the top end of acting rope; Be fixedly connected on the balance umbrella on the acting rope.
The utility model also discloses a kind of wind energy source dynamic system that uses above-mentioned umbrella-shaped wind power device, and it comprises: the umbrella-shaped wind power device, be used for collecting wind energy in the high-altitude, and convert wind energy into mechanical energy; The winch that connects the umbrella-shaped wind power device, this elevator arbor connect the acting device, and are that the acting device provides power; Be used to control the CCU of umbrella-shaped wind power device and winch; Rotate the winch that descends with traction acting rope by CCU control; Winch connects the lower end of the acting rope of umbrella-shaped wind power device, and rotates with traction acting rope and descend according to the rope SC sigmal control winch that finishes of putting that control box sends.
In a preferred embodiment, the rope of the acting in the umbrella-shaped wind power device is connected the reel of winch.
In a preferred embodiment; Be connected with overrunning clutch between winch and the acting device; A wherein end of the centre bearing of overrunning clutch is connected with the rotating shaft of winch through a coupling, and the other end is connected through the transmission shaft of another coupling with the acting device.
In a preferred embodiment, winch comprises: the reel that connects the acting rope; Magnetic clutch; Reduction gear box; Motor by CCU control rotation; Wherein, the central rotating shaft of magnetic clutch connects the rotating shaft of reel through reduction gear box, and magnetic clutch and motor couple.
In a preferred embodiment, the acting device is generator, suction engine or stirrer.
Compared with prior art, the utlity model has following beneficial effect:
The utility model is because umbrella controlling rope and the separately control of acting rope; Make the control of umbrella-shaped wind power device easier; And the folding of acting umbrella can not influence the stability of balanced in plane system; Make the aerial part of the wind energy source dynamic system of the utility model proposition have good stable performance and control performance, and the stability of above ground portion machine for doing work transmission energy all is greatly improved.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the working principle schematic representation of umbrella-shaped wind power device in the utility model;
Fig. 3 is the control relation schematic representation of the CCU of the utility model to winch and control box.
Embodiment
There is the restive and unsettled defective of transformation of energy of high-altitude equipment component based on existing high altitude wind energy application apparatus; The utility model proposes a kind of wind energy and converts wind energy the umbrella-shaped wind power device of power in using; And the wind energy source dynamic system that has adopted the umbrella-shaped wind power device to realize, have the stable and stable characteristics of transformation of energy of control.
As shown in Figure 1, the wind energy source dynamic system that the utility model proposes comprises: be used for collecting wind energy in the high-altitude, wind energy converted into the umbrella-shaped wind power device 1 of mechanical energy; The winch 2 that connects umbrella-shaped wind power device 1,2 in this winch connects acting device 3, further mechanical energy is passed to acting device 3 by winch 2; And the CCU 4 that is used to control umbrella-shaped wind power device 1 and winch 2.And winch 2, acting device 3 and CCU 4 fix on the ground.
Wherein, umbrella-shaped wind power device 1 comprises: acting rope 10, terminal reel 20, another terminal lift force guiding body 16 that connects that connects winch 2 of this acting rope 10; Being connected on the acting rope 10 and maintaining the acting umbrella 11 and balance umbrella 17 of certain distance each other, and balance umbrella 17 is positioned at the top of acting umbrella 11; Be arranged on the block 12 on the acting rope 10 between acting umbrella 11 and the balance umbrella 17; On the umbrella shape edge of acting umbrella 11, connect at least 3 cords 18, an end of every cord 18 hitches the outer ledge of said acting umbrella 11, and the other end fixed connection is positioned at acting umbrella 11 belows and socket is arranged on the slide cartridge 19 on the acting rope 10; On the rope of the acting below the slide cartridge 19 10, be fixedly connected control box 13; Little winch 14 and position detector are housed in the control box 13; Be connected through umbrella controlling rope 15 between little winch 14 and the slide cartridge 19, said umbrella controlling rope 15 drives the do work folding of umbrella 11 of control down at the little winch 14 of control box 13.
Wherein, winch 2 is horizontal electrical hoist.Winch 2 comprises: reel 20, magnetic clutch 21, reduction gear box 22 and motor 23.The central rotating shaft 210 of magnetic clutch 21 is through the rotating shaft 200 of reduction gear box 22 connection reels 20, and magnetic clutch 21 couples with motor 23.Motor 23 connects CCU 4, by 23 work of CCU 4 control motor, thereby drives reel 20 forward rotation or backward rotation through magnetic clutch 21 and reduction gear box 22, the speed that closes one's umbrella that control acting rope 10 draws acting umbrella 11 in.
In addition; Be fixed on the winch 2 on ground and do work and be connected with overrunning clutch 5 between the device 3; A wherein end of the centre bearing 50 of overrunning clutch 5 is connected with the rotating shaft 200 of winch 2 through a coupling 6, and the other end is connected through the transmission shaft 30 of another coupling 6 with acting device 3.Wherein, the transmission direction of overrunning clutch 5 is the sense of rotation of said acting rope 10 reel 20 when rising acting, and like this, winch 2 just passes to the device 3 that does work through overrunning clutch 5 with mechanical energy.
In conjunction with Fig. 2 and shown in Figure 3, the working principle of the wind energy source dynamic system that the utility model proposes is following:
Because control box 13 is fixedly connected on certain position on the acting rope 10, the length B of acting rope 10 between the reel 20 of control box 13 and winch 2; With winch 2, acting device 3 and CCU 4 fixing ground is ground, in the course of the work, being fixed on control box 13 on the acting rope 10 in the work lower limit height H on ground relatively
1With work upper limit height H
2, lower position H
1With upper limit position H
2Between the length A of acting rope 10.
1, not under the working state, acting umbrella 11 is in rounding state; Under the self gravitation effect, acting umbrella 11 all is positioned at work lower limit height H with control box 13 relative ground
1The below.
2, along with the increase of wind speed, wind-force, acting umbrella 11 receives wind to begin to drive up, does not also arrive work lower limit height H at control box 13
1The time; First control signal that control box 13 sends according to CCU 4; Control little winch 14 and rotate gathering umbrella controlling rope 15, and in holding together the 15 back lockings of umbrella controlling rope (if little winch 14 before control box 13 is received first control signal, has drawn umbrella controlling rope 15 in; Then little winch 14 is directly locked---and promptly do not do the rotation of any direction), make umbrella controlling rope 15 be in the state of tightening up (length that is connected the umbrella controlling rope 15 between little winch 14 and the slide cartridge 19 is shorter); Acting umbrella 11 is in the wind in the process; Rise along acting rope 10 through cord 18 pulling slide cartridges 19; And slide cartridge 19 drives control box 13 ascending motions through umbrella controlling rope 15, and because control box 13 is fixed on acting rope 10, thereby drive 10 ascending motions of acting rope by control box 13.
3, when wind speed reaches certain condition, acting umbrella 11 is opened fully, and at this moment, control box 13 rises to work lower position H
1, the length B of acting rope 10 between control box 13 and the reel 20
1Because wind-exposuring area was very big when acting umbrella 11 was opened, under the effect of wind-force, acting umbrella 11 continues to rise and makes acting rope 10 produce the very big tractive force that makes progress, and the reel 20 that drives winch 2 rotates very big mechanical energy.
4, rise to work upper limit height H when control box 13
2The time, the length B of the rope 10 that does work between control box 13 and the reel 20 this moment
2(B
2=B
1+ A); At this moment, the position detector in the control box 13 sends to control box 13 and arrives work upper limit height H
2Second cue; Control box 13 detects second cue and feeds back to CCU 4; Second control signal of sending to control box 13 by CCU 4; Control box 13 is controlled little winch 14 releases according to second control signal, and this moment, little winch 14 was free to rotate, made the length that is connected the umbrella controlling rope 15 between little winch 14 and the slide cartridge 19 elongated; Simultaneously; Because staying open state, acting umbrella 11 under wind action, continues to rise; Umbrella controlling rope 15 drives little winch 14 and rotates, and makes control box but not follow acting umbrella 11 (even restrict 10 the length B of acting between retentive control case 13 and the reel 20 that continues to rise 13 this moments
2); Owing to above acting rope 10, be provided with block 12; The umbrella shape top of acting umbrella 11 is stopped by block 12 and stops to rise; And slide cartridge 19 continues to rise under effect of inertia, thereby makes the cord 18 that ties up between slide cartridge 19 and acting umbrella 11 outer ledges no longer stressed, and acting umbrella 11 is folded together.
5, after acting umbrella 11 folds and finishes; Little winch 14 in the control box 13 sends to be put the rope signal that finishes and passes to control box 13; Control box 13 transmits signal wireless the CCU 4 that feeds back to ground; The motor 23 that CCU 4 is controlled in the winch 2 simultaneously rotates, and drives magnetic clutch 21 transmissions, wherein; The direction of rotation of reel 20 when the transmission direction of magnetic clutch 21 and said acting rope 10 rises acting makes reel 20 counter-rotation and with acting rope 10 gatherings between the reel 20 of control box 13 and winch 2.
6, when dropping to, control box 13 arrives work lower limit height H again
1The time (acting 10 the length B that restricts between this moment control box 13 and the reel 20
1), the position detector in the control box 13 sends to control box 13 and arrives work lower limit height H
1First cue; Control box 13 detects first cue and feeds back to CCU 4; First control signal of sending to control box 13 by CCU 4; Control box 13 is controlled little winch 14 quick counter-rotatings according to first control signal and is packed up umbrella controlling rope 15, and little winch 14 was tightly locked after umbrella controlling rope 15 was packed up; Acting umbrella 11 is opened the rising acting motion of carrying out a new round again under the effect of wind-force simultaneously, goes round and begins again.
Therefore, after acting umbrella 11 was opened, in the process that pulling acting rope 10 rises, the reel 20 of 10 pairs of winchs 2 of acting rope produced upwards tractive force, drive reel 20 and rotate, and reel 20 drives 3 work of acting device through overrunning clutch 5, coupling 6; And after 11 gatherings of acting umbrella, no longer pulling acting rope 10 rises, and the rope 10 that does work also no longer produces upwards tractive force to reel 20, is at this moment can't drive acting device 3 to work.
In a preferred embodiment; Position detector comprises gps signal receiver and controller; The gps signal receiver receives gps signal from satellite, analyzes the position information that gps signal obtains control box 13 by controller, and whether reaches work upper limit position H according to the position information of control box 13
1Or work upper limit position H
2The time, send first cue or second cue respectively.Certainly, those skilled in the art can know that controller is transmitted to CCU 4 with gps signal, judges the position information of control boxs 13 by CCU 4, and sends first or second control signal according to the position information of control box 13.
In a further advantageous embodiment, acting device 3 is a generator, and winch 2 rotates through central shaft and drives the generator rotation, and mechanical energy is passed to generator, is rotated by generator and produces electric energy, realizes the conversion of wind energy-mechanical energy-electric energy.
Certainly, also can be suction engine or stirrer, suction engine or stirrer can transmit mechanical energy through the rotation of winch 2 equally, thereby drive suction engine or stirrer acting, realize the conversion between high altitude wind energy, mechanical energy and the acting device institute energy requirement.
To sum up; The utility model is because umbrella controlling rope 15 was opened control in 10 minutes with the acting rope; Make the control of umbrella-shaped wind power device 1 easier; The folding of acting umbrella 11 can not influence the stability of balanced in plane system, makes the aerial part of the wind energy source dynamic system of the utility model proposition have good stable performance and control performance, and the stability of above ground portion machine for doing work transmission energy all is greatly improved.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (9)
1. a umbrella-shaped wind power device is characterized in that, said umbrella-shaped wind power device comprises:
The acting rope (10) that is provided with at angle with ground;
Be connected to control box (13), slide cartridge (19), acting umbrella (11) and Equilibrator on the acting rope (10) from bottom to up in turn, wherein, control box (13) is fixed on the acting rope (10);
Be connected the umbrella shape edge of acting umbrella (11) and the some cords (18) between the slide cartridge (19);
Be connected between control box (13) and the slide cartridge (19), and control the umbrella controlling rope (15) that its elongation changes by control box (13);
Be used for when control box (13) arrives the work lower position on relative ground; First control signal control of sending to control box (13) is with the shorten length of umbrella controlling rope (15) and remain short fixed length; And when control box (13) arrives the work upper limit position on relative ground; To second control signal control CCU (4) that the length of umbrella controlling rope (15) is elongated that control box (13) sends, this CCU (4) wireless connection control case (13).
2. according to the said umbrella-shaped wind power device of claim 1, it is characterized in that control box (13) comprising:
Be used to control the little winch (14) that the elongation of umbrella controlling rope (15) changes, little winch (14) connects slide cartridge (19) through umbrella controlling rope (15);
Be used for when detecting control box (13) arrival work lower position; Send first cue and send first control signal to trigger CCU (4); And when detecting control box (13) arrival work upper limit position; Send second cue to trigger the position detector that CCU (4) sends second control signal, this position detector wireless connections CCU (4).
3. according to the said umbrella-shaped wind power device of claim 1, it is characterized in that said umbrella-shaped wind power device also comprises: be fixedly connected on the block (12) on the acting rope (10), block (12) is positioned between acting umbrella (11) and the Equilibrator.
4. according to the said umbrella-shaped wind power device of claim 3, it is characterized in that when control box (13) arrived the work upper limit position, the position at the umbrella shape top of acting umbrella (11) was lower than block (12).
5. according to the said umbrella-shaped wind power device of claim 1, it is characterized in that Equilibrator comprises: the lift force guiding body (16) that is fixedly connected on the top end of acting rope (10); Be fixedly connected on the balance umbrella (17) on the acting rope (10).
6. a wind energy source dynamic system is characterized in that, comprising:
The umbrella-shaped wind power device (1) any one like claim 1-5;
Be used for putting rope when finishing signal what control box (13) sent; Rotate the winch (2) that descends with traction acting rope (10) by CCU (4) control; Winch (2) connects the lower end of the acting rope (10) of umbrella-shaped wind power device (1), and winch (2) axle connects acting device (3).
7. according to the said wind energy source dynamic system of claim 6, it is characterized in that the lower end of the acting rope (10) in the umbrella-shaped wind power device (1) is connected the reel (20) of winch (2).
8. according to the said wind energy source dynamic system of claim 6; It is characterized in that; Be connected with overrunning clutch (5) between winch (2) and the acting device (3); A wherein end of the centre bearing (50) of overrunning clutch (5) is connected with the rotating shaft of winch (2) through a coupling (6), and the other end is connected through the transmission shaft of another coupling (6) with acting device (3).
9. according to the said wind energy source dynamic system of claim 6, it is characterized in that winch (2) comprising: the reel (20) that connects acting rope (10); Magnetic clutch (21); Reduction gear box (22); Motor (23) by CCU (4) control rotation; Wherein, the central rotating shaft (210) of magnetic clutch (21) is through the rotating shaft (200) of reduction gear box (22) connection reel (20), and magnetic clutch (21) couples with motor (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120189778U CN202140248U (en) | 2011-06-08 | 2011-06-08 | Umbrella-shaped wind power device and wind power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120189778U CN202140248U (en) | 2011-06-08 | 2011-06-08 | Umbrella-shaped wind power device and wind power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140248U true CN202140248U (en) | 2012-02-08 |
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ID=45551307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120189778U Expired - Lifetime CN202140248U (en) | 2011-06-08 | 2011-06-08 | Umbrella-shaped wind power device and wind power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140248U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220938A (en) * | 2011-06-08 | 2011-10-19 | 广东高空风能技术有限公司 | Umbrella type wind power device and wind power system |
| CN104321526A (en) * | 2012-05-10 | 2015-01-28 | 波音公司 | System and method for converting fluid motion into electrical power |
| CN109681379A (en) * | 2018-11-13 | 2019-04-26 | 白毅 | Variable span kite wind energy conversion system |
-
2011
- 2011-06-08 CN CN201120189778U patent/CN202140248U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220938A (en) * | 2011-06-08 | 2011-10-19 | 广东高空风能技术有限公司 | Umbrella type wind power device and wind power system |
| CN102220938B (en) * | 2011-06-08 | 2012-11-28 | 广东高空风能技术有限公司 | Umbrella type wind power device and wind power system |
| CN104321526A (en) * | 2012-05-10 | 2015-01-28 | 波音公司 | System and method for converting fluid motion into electrical power |
| CN104321526B (en) * | 2012-05-10 | 2017-06-06 | 波音公司 | System and method for fluid motion to be converted to electrical power |
| CN109681379A (en) * | 2018-11-13 | 2019-04-26 | 白毅 | Variable span kite wind energy conversion system |
| CN109681379B (en) * | 2018-11-13 | 2020-11-17 | 白毅 | Wind turbine of kite with variable wingspan |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120208 Effective date of abandoning: 20130227 |
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| RGAV | Abandon patent right to avoid regrant |