WO2014194443A1 - 具缓冲装置的风力发电机 - Google Patents

具缓冲装置的风力发电机 Download PDF

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Publication number
WO2014194443A1
WO2014194443A1 PCT/CN2013/000684 CN2013000684W WO2014194443A1 WO 2014194443 A1 WO2014194443 A1 WO 2014194443A1 CN 2013000684 W CN2013000684 W CN 2013000684W WO 2014194443 A1 WO2014194443 A1 WO 2014194443A1
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WO
WIPO (PCT)
Prior art keywords
blade
rotating shaft
windmill
base
blades
Prior art date
Application number
PCT/CN2013/000684
Other languages
English (en)
French (fr)
Inventor
安藤滋
Original Assignee
泓星科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 泓星科技有限公司 filed Critical 泓星科技有限公司
Priority to GB1521769.8A priority Critical patent/GB2530201A/en
Priority to JP2016600033U priority patent/JP3204736U/ja
Priority to PCT/CN2013/000684 priority patent/WO2014194443A1/zh
Priority to CN201390001190.8U priority patent/CN205423055U/zh
Priority to DE212013000304.8U priority patent/DE212013000304U1/de
Publication of WO2014194443A1 publication Critical patent/WO2014194443A1/zh

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Classifications

    • 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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • 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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • F03D3/066—Rotors characterised by their construction elements the wind engaging parts being movable relative to the rotor
    • F03D3/067—Cyclic movements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise
    • F05B2260/964—Preventing, counteracting or reducing vibration or noise by damping means
    • 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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Definitions

  • the invention relates to a wind power generator with a buffer device, in particular, a buffer device with a seat body and a telescopic rod is connected between a rotating shaft of a generator on a base and a blade of a windmill, and a predetermined oil is used inside the seat body.
  • the liquid or elastic element produces a damping effect, supplemented by slowing the yaw of the blade to avoid structural damage or damage.
  • Power generation such as hydropower, solar power or wind power, in which wind power is driven by wind to rotate the blades to drive the generator to generate electricity and store electrical energy.
  • the blades of wind power must match the wind direction with the windward surface, and the blades are rotated by the wind to drive the generator, and the wind direction will change with factors such as climate, season and environment.
  • a large wind turbine for wind power generation through a towering upright column and a cross-blade blade on the top, can be rotated by the wind, but it is bulky, costly, difficult to set, and unable to turn.
  • Such problems so the practical application is not universally used; in addition, the blades generally used for wind power generation are fixed type rings set outside the center shaft, and since the angle of the blade is fixed, it cannot be adjusted. After the wind changes or the wind direction changes, the blades will not be able to fully adapt to the wind and wind direction, and the function and effect of the overall use will be limited.
  • FIG. 9 is a partial side view of the existing wind power generator. It can be clearly seen from the figure, wherein the wind turbine generator A has a plurality of fan blades A2 at the periphery of the central rotating shaft A1, and is disposed at the center shaft. A1 and the fan blade A2 are connected by two opposite linkage rods A12, and the second linkage rod A12 is provided with a weight joint A13 on the inner side, and is further connected at the joint of the blade A2 and the linkage rod A12. The moving rod A12 is rotated against the stopping body A14 for preventing the interlocking rod A12 from being pushed outward in the reverse direction.
  • the interlocking rod A12 When the blade A2 is rotated by the wind, the interlocking rod A12 can be pulled to drive When the weight joint A13 rises and the fan blade A2 is pushed outward, the yaw angle when the blade A2 rotates can be adjusted according to the strength of the wind, and the rotation speed of the blade A2 and the center shaft A1 can be controlled. However, the interlocking rods A12 and the weight joints A13 of the wind power generator A are connected to each other by the movable pivoting manner. When the blade A2 is rotated by the strong wind force, the interlocking rod A12 drives the counterweight. The joint A13 rises too fast, which causes the center shaft A1 to not slow down slowly.
  • the overall structure is quite unstable, and it is easy to cause the center shaft A1 and the fan blade A2 to rotate overspeed, which may cause the wind turbine generator A to malfunction or be damaged.
  • the moving rod A12 drives the weight joint A13 to rise rapidly, the collision force of the weight joint A13 against the stopper body A14 is excessively damaged, causing damage or damage to the structure, and the linkage rod A12 is not easily affected by the blade A2. Pulling, so that the fan blade A2 is easy to generate resistance when unfolding or folding, and thus the blade A2 or the linkage rod A12 is damaged, the overall structure is complicated and difficult to repair, and the person who is still engaged in this industry is redesigned to effectively solve it. Summary of the invention
  • the utility model relates to a wind power generator with a buffer device, which comprises a base, a windmill and a buffer device.
  • the base is provided with a generator for driving the rotary shaft to generate electricity, and a windmill with a plurality of blades is arranged at the periphery of the rotary shaft.
  • At least one support rod is respectively connected between each blade and the rotating shaft, and one side of the supporting raft is pivotally connected to the inner side surface of the blade for active yaw, and the other side of the supporting rod is fixed on the rotating shaft, and the feature thereof
  • the buffer shaft of the base and the blades of the windmill are respectively coupled with a cushioning device having a seat body and a telescopic rod, and one end of the telescopic rod is provided with a movable displacement in the seat body to slow the movement of the blade.
  • the telescopic rod is pivotally connected to the inner side surface of the vane opposite to the end of the piston head, and at least one connecting rod pivotally connected to the rotating shaft is disposed at a side of the seat opposite to the telescopic rod .
  • the wind power generator with a buffer device wherein: the inner side surface of the blade of the windmill is provided with at least one inwardly turned side flap near the side position, and each side flap forms an angle with the inner side surface of the blade.
  • the wind power generator with a buffer device, wherein: a cavity is formed inside the seat body of the buffer device, and the chamber stores a predetermined oil liquid for damping the movable displacement of the piston head of the telescopic rod.
  • the wind power generator with a buffer device wherein: a buffer chamber is formed inside the seat body, and an elastic member is disposed between the chamber of the seat body and the piston head of the telescopic rod, and the elastic member is resisted at one end. At the inner wall of the chamber, the other end of the elastic member is elastically supported against the piston head of the telescopic rod for elastic deformation.
  • the invention adopting the above technical solution has the advantages that: when the windmill is blown by strong wind, the blade of the invention pulls the telescopic rod to make the piston head move active, and utilizes the inside of the seat body.
  • the predetermined oil or elastic element produces a damping effect, which is supplemented by an effective slowing of the speed of the blade during the yaw of the blade to avoid damage or damage to the structure caused by the excessively fast rotation speed of the blade and improve the collision noise.
  • the problem and thus improve the function and effect of the overall use.
  • the plurality of blades can be stopped at the periphery of the rotating shaft, and the telescopic rod of the cushioning device is shortened by the predetermined oil or elastic component inside the seat body, and The pulling blade is in a radial active state when the supporting rod is pivoted and pivoted, and the wind is pushed on the inner side surface of the blade as the wind receiving surface to be linked to the rotating shaft to resume rotation, and the rotating shaft drives the power generation.
  • the centrifugal force generated by the gradual increase of the rotational speed of the windmill can be utilized to make the blade yaw and gradually close and form a closed state, and no longer be blown by the strong wind. Decelerating the rotating shaft to prevent the generator from being damaged or malfunctioning due to the excessively fast rotating speed, and can be effectively extended by the buffer device to slow down the speed of the plurality of blades of the windmill. The overall service life of the generator and windmill.
  • Figure 1 is a perspective view of the present invention
  • Figure 2 is a plan view of the present invention
  • Figure 3 is a view showing the state of use of the present invention.
  • Figure 4 is a partial side view of the present invention.
  • Figure 5 is a side elevational view of the blade of the present invention when deployed
  • Figure 6 is a perspective external view of the blade of the present invention when it is folded
  • Figure 7 is a partial side elevational view of a preferred embodiment of the present invention.
  • Figure 8 is a plan view of another preferred embodiment of the present invention.
  • Figure 9 is a partial side elevational view of a prior art wind turbine.
  • FIG. 1, FIG. 2, FIG. 3 and FIG. 4 are respectively a perspective view, a top view, a use state diagram and a partial side view of the present invention.
  • the present invention includes a base. 1. Windmill 2 and buffer device 3, where:
  • the base 1 is provided with a generator 1 1 , and the generator 1 1 is provided with an outwardly extending rotary shaft 12, which can be driven by the rotary shaft 12 to convert the mechanical energy into electrical energy after the generator 11 is operated. And then output to a storage device such as a battery or a rechargeable battery for storage, or can be directly supplied to other electromechanical devices, but the manner in which the rotary shaft 12 drives the generator 11 to generate electric energy is prior art.
  • a storage device such as a battery or a rechargeable battery for storage, or can be directly supplied to other electromechanical devices, but the manner in which the rotary shaft 12 drives the generator 11 to generate electric energy is prior art.
  • the scope, and the composition of the generator 1 1 detail is not the creation point of this case, and will not be repeated here.
  • the windmill 2 is disposed on the rotating shaft 12 of the base 1 and includes a plurality of blades 21, wherein the blades 21 are provided with at least one axle seat 22 opposite to the inner side surface 21 1 formed at the rotating shaft 12, and each blade At least one support rod 23 is coupled to the rotation shaft 12, and the support rod 23 is pivotally connected to the shaft seat 22 of the inner side surface 21 1 of the blade 21, and is supported by the other side of the support rod 23. Is fixed on the rotating shaft 12, so that the plurality of blades 21 are respectively located at the side of the support rod 23 for active yaw
  • the plurality of blades 21 of the windmill 2 are in the shape of an arc, and each of the blades 21 is located at the periphery of the rotating shaft 12 of the base 1.
  • the plurality of blades 21 are rapidly rotated by strong wind, they can The outer yoke is folded in a spherical shape and the resistance is reduced, so that the rotational speed of the plurality of blades 21 is gradually slowed to resist strong wind.
  • the buffering device 3 is connected between the rotating shaft 12 of the base 1 and the blades 21 of the windmill 2, and includes a seat body 3 1 and a telescopic rod 32.
  • the seat body 31 is preferably a hydraulic cylinder.
  • the sealed chamber 3 10 formed inside the seat body 31 stores a predetermined oil 31 1 having a damping effect, and the inside of the chamber 310 of the seat body 31 is provided with a telescopic rod 32 which is linearly displaced outward.
  • a piston head 321 located in the chamber 310 is disposed on the end of the telescopic rod 32, and an end of the piston head 321 is pivotally connected to the inner side surface 21 1 of the blade 21 near the side position, and the seat body 31 is opposite to At least one link 33 pivotally connected to the rotating shaft 12 is disposed at one side of the telescopic rod 32.
  • FIG. 1 , FIG. 4 , FIG. 5 , and FIG. 6 are respectively a perspective view of the present invention, a partial side view, a side view when the blade is unfolded, and a stereoscopic appearance when the blade is folded, which can be clearly seen from the figure.
  • the wind power generator of the present invention can be fixed to a roof with a large air volume, an open area, a high ground or a coast side, and the predetermined oil 31 1 stored inside the seat body 31 of the shock absorber 3 has a damping effect, and the expansion and contraction thereof
  • the rod 32 acts to shorten the displacement toward the seat body 31, and the position of the side edge 21 1 - side of the blade 21 of the windmill 2 is pulled by the telescopic cymbal 2 so that the plurality of blades 21 can pass through the shaft seat 22 respectively.
  • the support rod 23 is rotated at an angle as an axis, and is radially extended in a radially active state at the periphery of the rotary shaft 12 of the base 1.
  • the generator 11 can be driven by the rotary shaft 12, and the generator 11 can be quickly started due to the short operation (rotation) and stop (still) of the plurality of blades 21. Power generation.
  • the centrifugal force generated by the blades 21 pulls the extension of the telescopic rod 32 toward the outside of the seat body 31.
  • the action of the piston head 321 of the telescopic rod 32 is located in the chamber 310 of the seat body 31 for active displacement, so that the pressure of the predetermined oil 31 1 flowing inside the chamber 310 is increased to generate a damping effect.
  • the centrifugal force generated by the gradual increase of the rotational speed of the windmill 2 can be utilized to make the blade 21 yaw and gradually close and form a closed state, and will not be blown by strong winds.
  • the rotating shaft 12 is decelerated to prevent the rotating shaft 12 from being damaged or malfunctioned due to the excessively fast rotating speed, and may be supplemented by the buffer device 3 to reduce the plurality of blades of the windmill 2
  • the speed of the 21 rotation can effectively extend the overall service life of the generator 11 and the windmill 2.
  • the plurality of blades 21 can be stopped at the periphery of the rotary shaft 12, but the telescopic rod 32 of the cushioning device 3 is subjected to the inside of the seat 31 due to the short interval of the stationary interval.
  • the influence of the oil 31 1 causes the displacement of the seat body 3 1 to be shortened, and the plurality of blades 21 are pulled to support the rod 23 as a shaft to be radially expanded, and the wind can be pushed by the blades.
  • the inner side surface 21 1 of the 21 is connected to the rotating shaft 12 as a wind receiving surface to resume rotation, and at the same time, the generator 1 1 is driven by the rotating shaft 12 to generate electricity.
  • the wind power generator automatically controls the rotation speed by using a mechanical principle. Unlike other traditional wind turbines, it is necessary to set up the brake system, so that it does not have to be restarted in the state of no brake, and the power can be quickly started or stopped due to the short interval of the stationary interval. Machine 1 1 increases power generation efficiency.
  • FIG. 2, FIG. 3, FIG. 4 and FIG. 7 are respectively a top view, a use state diagram, a partial side view and a partial side view of a preferred embodiment of the present invention, as is clear from the figure, wherein
  • the base 3 1 of the buffer device 3 can be a cylinder, and the predetermined oil 31 1 stored in the chamber 310 inside the base 31 is only a preferred embodiment, and can also be in the chamber 310 of the base 31.
  • an elastic member 312 is further disposed between the piston head 321 of the telescopic rod 32, and the end of the elastic member 312 is abutted against the inner wall surface of the chamber 310, and the other end of the elastic member 312 is elastically supported by the telescopic rod 32.
  • the piston head 321 is elastically deformed, and the predetermined oil 31 1 inside the chamber 310 may be omitted.
  • the centrifugal force generated by the blade 21 pulls the telescopic rod 32 to cause the piston head 32 to be displaced, and pushes the elastic member 312 to be elastically deformed to generate a damping effect. It can be supplemented with the speed of effectively slowing the rotation of the blade 21 during the yaw.
  • the telescopic rod 32 of the cushioning device 3 is shortened by the elastic restoring force of the elastic member 312.
  • the displacement and the pulling blade 21 are radially expanded by the support rod 23 as an axis, and can be linked to the rotating shaft 12 by being pushed onto the inner side surface 21 1 of each blade 21 as a wind receiving surface.
  • FIG. 1 , FIG. 2 , FIG. 3 and FIG. 8 are respectively a perspective view, a top view, a use state diagram and a top view of another preferred embodiment of the present invention, as can be clearly seen from the figure, wherein
  • the inner side surface 21 1 of each of the blades 21 of the windmill 2 is further disposed with at least one inwardly turned side flap 212, and the side flap 212 is preferably an arc curved surface, but is practically applied. It may also be a plane and form a predetermined angle with the inner side surface 21 1 of the blade 21, and the side fins 212 of the blade 21 are structurally designed in a large number, and the number of the side fins 212 may be changed according to practical applications.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
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  • Combustion & Propulsion (AREA)
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  • General Engineering & Computer Science (AREA)
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Abstract

一种具有缓冲装置（3）的风力发电机，在基座（1）上设有可供旋动轴（12）驱动的发电机（11），并于旋动轴（12）外围处设置有风车（2）的复数叶片（21），且各叶片（21）与旋动轴（12）间分别连结有支撑杆（23），而基座（1）的旋动轴（12）与风车（2）的各叶片（21）间则分别连结有具有座体（31）及伸缩杆（32）的缓冲装置（3），伸缩杆（32）—端上设有位于座体（31）内部的活塞头（321），且相反于活塞头（321）的另一端枢接于叶片（21）内侧面上，座体（31）相反于伸缩杆（32）的一侧处设有枢接于旋动轴（12）上的连杆（33）。当风车（2）受强风吹动时，其叶片（21）便会拉引伸缩杆（32）使活塞头（321）作活动位移，并利用座体（31）内部的预定油液（311）或弹性元件（312）产生阻尼的效果，辅以减缓叶片（21）活动偏摆时旋动的速度，以避免因叶片（21）旋动速度过快所造成结构上的损伤或破坏，并改善碰撞噪音的问题，进而提高整体使用的机能与效果。

Description

具有緩冲装置的风力发电机 技术领域
本发明涉及一种具有緩沖装置的风力发电机， 尤指基座上的发电机旋动轴 与风车的各叶片间为连结有具有座体及伸缩杆的緩沖装置， 并利用座体内部预 定油液或弹性元件产生阻尼的效果， 辅以减緩叶片活动偏摆时的速度， 以避免 造成结构上的损伤或破坏。 背景技术
随着世界各地用电量的持续增加， 强调节约能源的口号也持续推行， 并且 呼吁节约用电以外， 更积极开拓新的电源供应， 而一般除了核能发电、 火力发 电， 也有许多利用自然力量进行发电， 例如水力发电、 太阳能发电或风力发电 等， 其中风力发电通过风力的带动使扇叶旋转， 以驱动发电机运作来进行发电 与储存电能。
然而， 风力发电的扇叶必须以迎风面配合风向， 并使扇叶受到风力的带动 而旋转， 以带动发电机运作， 且该风向也会随着气候、 季节与环境等因素而改 变， 一般用以进行风力发电的大型风力机， 通过一根高耸直立的柱子， 并于顶 部设置有十字形刀片状的扇叶， 即可通过风力带动旋转， 但因体积大、 成本高、 不易设置、 无法转向等问题， 所以实际应用上并未普遍的使用； 另， 一般用以 进行风力发电的扇叶都是呈固定型式环设在中心转轴外部， 由于扇叶的角度已 经固定而不能进行调整， 因此一旦风力改变或风向转换后， 扇叶则将不能完全 配合风力及风向作改变， 整体使用上的机能与效果便会受到限制。
请参阅图 9所示， 是现有风力发电机的局部侧视图， 由图中可清楚看出， 其中风力发电机 A所具的中心转轴 A1外围处设有复数扇叶 A2, 并于中心转轴 A1与扇叶 A2之间利用二相对的连动杆 A12连结， 且二连动杆 A12相对内侧处 设有配重关节 A13 , 再于扇叶 A2与连动杆 A12连接处设有可供连动杆 A12旋 动抵持于其上用以防止连动杆 A12朝反向外推的止挡体 A14 ,当扇叶 A2受到风 力的带动而旋转时， 可拉引各连动杆 A12带动于配重关节 A13上升， 并使扇叶 A2向外推移展开， 便可依风力的强弱调整扇叶 A2旋转时的偏摆角度， 进而可 控制扇叶 A2与中心转轴 A1的转速。 惟该风力发电机 A的各连动杆 A12与配重关节 A13为利用活动枢接方式相 互连结， 当扇叶 A2受到较强风力的带动而旋转时， 便会造成连动杆 A12带动 配重关节 A13上升速度过快， 导致中心转轴 A1无法緩慢减速， 整体结构相当 的不稳定， 并容易造成中心转轴 A1与扇叶 A2旋转超速， 进而使风力发电机 A 发生故障或损坏； 另， 当连动杆 A12带动配重关节 A13快速上升时， 便会因配 重关节 A13抵持于止挡体 A14上的碰撞力量过大造成结构的损伤或破坏， 并使 连动杆 A12不易受到扇叶 A2拉动， 以致扇叶 A2展开或收合时容易产生阻力， 进而使扇叶 A2或连动杆 A12损坏， 整体结构复杂且不易维修， 则有待从事于 此行业者重新设计来加以有效解决。 发明内容
故， 新型实用新型设计人有鉴于现有风力发电机于实际使用上的问题与缺 失， 乃搜集相关资料经由多方的评估及考虑， 并利用从事于此行业的多年研发 经验不断的试作与修改， 始设计出此种具有緩沖装置的风力发电机的新型诞生。
为实现上述目的， 本发明采用的技术方案是：
一种具有緩沖装置的风力发电机， 包括基座、 风车及緩冲装置， 基座上设 有可供旋动轴驱动进行发电的发电机， 旋动轴外围处设置有具有复数叶片的风 车， 各叶片与旋动轴之间分别连结有至少一根支撑杆， 支撑扞一侧处枢接于叶 片内侧面上作活动偏摆， 支撑杆的另一侧处固定于旋动轴上， 其特征在于： 该基座的旋动轴与风车的各叶片之间分别连结有具有座体及伸缩杆的緩冲 装置， 伸缩杆一端上设有位于座体内作活动位移辅以减緩叶片活动偏摆时旋动 的速度的活塞头， 伸缩杆相反于活塞头的一端枢接于叶片内侧面上， 座体相反 于伸缩杆的一侧处设有至少一根枢接于旋动轴上的连杆。
所述的具有緩冲装置的风力发电机， 其中： 该风车的叶片上的内侧面靠近 侧边位置设有至少一个向内转折的侧翼片， 各侧翼片与叶片的内侧面形成有夹 角
所述的具有緩沖装置的风力发电机， 其中： 该緩冲装置的座体内部形成有 容室， 容室储存有可供伸缩杆的活塞头活动位移产生阻尼效杲的预定油液。
所述的具有緩冲装置的风力发电机， 其中： 该緩冲装置的座体内部形成有 容室， 座体的容室与伸缩杆的活塞头之间设有弹性元件， 弹性元件一端抵持于 容室内壁面处， 弹性元件的另一端弹性撑抵于伸缩杆的活塞头上作弹性变形。 与现有技术相比较， 采用上述技术方案的本发明具有的优点在于： 本发明当风车受到强风的吹动时， 其叶片便会拉引伸缩杆使活塞头作活动 位移， 并利用座体内部的预定油液或弹性元件产生阻尼的效果， 辅以有效减緩 叶片活动偏摆时旋动的速度， 以避免因叶片旋动速度过快所造成其结构上的损 伤或破坏， 并改善碰撞噪音的问题， 进而提高整体使用的机能与效果。
本发明当强风吹动于风车时， 可使复数叶片位于旋动轴外围处停止旋转， 其緩冲装置的伸缩杆受到座体内部的预定油液或弹性元件的影响便会作缩短位 移， 并拉引叶片以支撑杆为轴心旋动而呈现放射状的活动展开状态， 便可利用 风力推动于叶片内侧面上作为受风面而连动于旋动轴恢复旋转， 同时凭借旋动 轴驱动发电机运作， 此种利用机械原理自动控制转速， 有别于其它传统式风力 发电机需要设置煞车系统， 进而达到在无煞车的状态下不必重新启动， 且因静 止间隔的时间短可快速启动运转或停止， 使发电机发电效率提高。
本发明当强风吹动于风车的叶片上时， 可利用风车转速逐渐加快所产生的 离心力， 使叶片活动偏摆而逐渐旋动收合后形成封闭状态， 也不会再被强风吹 动， 同时使旋动轴减速， 以防止旋动轴因旋动速度过快所造成发电机损坏或故 障的情况发生， 且可通过緩沖装置辅以减緩风车的复数叶片旋动的速度， 而可 有效延长发电机与风车的整体使用寿命。 附图说明
图 1是本发明的立体外观图；
图 2是本发明的俯视图；
图 3是本发明的使用状态图；
图 4是本发明的局部侧视图；
图 5是本发明叶片展开时的侧视图；
图 6是本发明叶片收合时的立体外观图；
图 7是本发明较佳实施例的局部侧视图；
图 8是本发明另一较佳实施例的俯视图；
图 9是现有风力发电机的局部侧视图。
附图标记说明： 1-基座； 1 1 -发电机； 12-旋动轴； 2-风车； 21-叶片； 21 1-内 侧面； 212-侧翼片； 22-轴座； 23-支撑杆； 3-緩冲装置； 31-座体； 310-容室； 31 1- 油液； 312-弹性元件； 32-伸缩杆； 321-活塞头； 33-连杆； Λ-风力发电机； A1- 中心转轴； Al l-支臂杆； A12-连动杆； A13-配重关节； A14-止挡体； A2-扇叶。 具体实施方式
为达成上述目的及功效， 本发明所采用的技术手段及其构造， 兹绘图就本 发明的较佳实施例详加说明其构造与功能如下， 俾利完全了解。
请参阅图 1、 图 2、 图 3、 图 4所示， 分别为本发明的立体外观图、 俯视图、 使用状态图及局部侧视图， 由图中可清楚看出， 本发明为包括有基座 1、 风车 2 及緩冲装置 3， 其中：
该基座 1上设有一发电机 1 1 , 并于发电机 1 1上设有向外延伸的旋动轴 12， 便可利用旋动轴 12驱动于发电机 1 1运作将机械能转换为电能后， 再输出至蓄 电池或充电电池等储电装置内进行储存， 或是可直接供应至其它机电设备使用， 惟此部分有关旋动轴 12如何驱动发电机 1 1产生电能的方式是现有技术的范畴， 且该发电机 1 1细部的构成也并非本案的创设要点， 兹不再作赘述。
该风车 2设置于基座 1的旋动轴 12上， 并包括有复数叶片 21， 其叶片 21 相反于旋动轴 12处所形成的内侧面 21 1上设有至少一个轴座 22 , 且各叶片 21 与旋动轴 12之间分别连结有至少一根支撑杆 23， 而支撑杆 23—侧处则枢接于 叶片 21 内侧面 21 1的轴座 22上， 并由支撑杆 23的另一侧处固定于旋动轴 12 上， 以供复数叶片 21分别位于支撑杆 23—侧处作活动偏摆
再者， 风车 2的复数叶片 21为呈一圓弧状的片体， 且各叶片 21位于基座 1 的旋动轴 12外围处， 当复数叶片 21受到强风带动而快速旋转时， 便可向外偏 摆收合呈一圆球状的密封形式阻力变小， 使复数叶片 21旋转速度逐渐变慢以抵 御强风。
该緩沖装置 3分别连结于基座 1的旋动轴 12与风车 2的各叶片 21之间， 并包括有座体 3 1及伸缩杆 32 , 其中座体 31较佳实施可为一油压缸， 并于座体 31 内部所形成密封的容室 3 10储存有具阻尼效果的预定油液 31 1， 而座体 3 1的 容室 310内部则设有朝外作线性位移的伸缩杆 32，并于伸缩杆 32—端上设有位 于容室 310内的活塞头 321， 且相反于活塞头 321的一端枢接于叶片 21的内侧 面 21 1上靠近侧边位置， 又座体 31相反于伸缩杆 32的一侧处设有至少一根枢 接于旋动轴 12上的连杆 33。
请搭配参阅图 1、 图 4、 图 5、 图 6所示， 分别为本发明的立体外观图、 局 部側视图、 叶片展开时的侧视图及收合时的立体外观图， 由图中可清楚看出， 本发明的风力发电机可固定于风量大的屋顶、 空旷地区、 高地或海岸边等位置， 即可通过緩冲装置 3的座体 31 内部储存的预定油液 31 1具有阻尼的效果， 其伸 缩杆 32便会朝座体 31作缩短位移的动作，并由伸缩扞 32拉引风车 2的叶片 21 内侧面 21 1—侧处的靠近侧边位置， 使复数叶片 21可分别通过轴座 22为以支 撑杆 23作为轴心呈一角度旋动， 且位于基座 1的旋动轴 12外围处呈现放射状 的活动展开状态。
当自然风为由风车 2已展开后的复数叶片 21间所形成的空间处吹入时， 可 利用风力推动于叶片 21的迎风面， 并由叶片 21通过轴座 22带动各支撑杆 23 而连动于旋动轴 12同时旋转， 便可凭借旋动轴 12驱动发电机 1 1运作， 且因复 数叶片 21运转 （旋动） 、 停止 （静止） 的时间短， 使发电机 1 1可以快速启动 进行发电。
然而， 若是风车 2的复数叶片 21受到强风吹动而使基座 1的旋动轴 12转 速加快时， 其叶片 21所产生的离心力便会拉引伸缩杆 32朝座体 31外部作伸长 位移的动作， 并带动伸缩杆 32的活塞头 321位于座体 31的容室 310内作活动 位移， 使容室 310内部所流通的预定油液 31 1压力变大而产生阻尼的效果， 便 可辅以有效减緩叶片 21活动偏摆时旋动的速度， 以避免因复数叶片 21受到强 风的吹动导致旋动速度过快所造成结构上的损伤或破坏， 并改善碰撞噪音的问 题， 进而提高整体使用的机能与效果。
当强风吹动于风车 2的复数叶片 21上时， 可利用风车 2转速逐渐加快产生 的离心力， 使叶片 21活动偏摆而逐渐旋动收合后形成封闭状态， 也不会再被强 风吹动， 同时使旋动轴 12减速， 以防止旋动轴 12因旋动速度过快所造成发电 机 1 1损坏或故障的情况发生， 且可通过緩冲装置 3辅以减緩风车 2的复数叶片 21旋动时的速度， 而可有效延长发电机 1 1与风车 2的整体使用寿命。
此外， 由于强风吹动于风车 2时， 可使复数叶片 21位于旋动轴 12外围处 停止旋转， 但因静止间隔的时间短， 其緩冲装置 3的伸缩杆 32受到座体 31 内 部的预定油液 31 1的影响便会朝座体 3 1作缩短位移的动作，并拉引复数叶片 21 以支撑杆 23为轴心旋动而呈现放射状的活动展开状态， 便可利用风力推动于各 叶片 21的内侧面 21 1上作为受风面而连动于旋动轴 12恢复旋转， 同时凭借旋 动轴 12驱动发电机 1 1运作进行发电， 此种风力发电机利用机械原理自动控制 转速， 有别于其它传统式风力发电机需要设置煞车系统， 进而达到在无煞车的 状态下不必重新启动， 且因静止间隔的时间短可快速启动运转或停止， 使发电 机 1 1发电效率提高。
请同时参阅图 2、 图 3、 图 4、 图 7所示， 分别为本发明的俯视图、 使用状 态图、 局部侧视图及较佳实施例的局部侧视图， 由图中可清楚看出， 其中该緩 沖装置 3的座体 3 1可为一缸体， 并于座体 31 内部的容室 310储存有预定油液 31 1仅为一种较佳的实施， 也可在座体 31的容室 310与伸缩杆 32的活塞头 321 之间进一步设有弹性元件 312，并由弹性元件 312—端抵持于容室 310的内壁面 处， 且弹性元件 312的另一端弹性撑抵于伸缩杆 32的活塞头 321上呈一弹性变 形， 也可省略容室 310内部的预定油液 31 1。
当风车 2的叶片 21受到强风吹动时， 其叶片 21产生的离心力便会拉引伸 缩杆 32使活塞头 32作活动位移， 并推抵于弹性元件 312呈一弹性变形而产生 阻尼的效果， 便可辅以有效减緩叶片 21活动偏摆时旋动的速度， 当叶片 21停 止旋转后， 其緩冲装置 3的伸缩杆 32受到弹性元件 312所具的弹性恢复力的影 响便会作缩短位移， 并拉引叶片 21以支撑杆 23为轴心旋动而呈现放射状的活 动展开状态， 便可利用推动于各叶片 21的内侧面 21 1上作为受风面而连动于旋 动轴 12恢复旋转， 同时凭借旋动轴 12驱动发电机 1 1运作， 此种风力发电机利 进而达到在无煞车状态下不必重新启动， 且因静止间隔的时间短可快速启动运 转或停止， 使发电机 1 1发电效率提高。
请继续参阅图 1、 图 2、 图 3、 图 8所示， 分别为本发明的立体外观图、 俯 视图、 使用状态图及另一较佳实施例的俯视图， 由图中可清楚看出， 其中该风 车 2的各叶片 21上的内侧面 21 1靠近侧边位置为可进一步设有至少一个向内转 折的侧翼片 212， 且该侧翼片 212较佳实施可为一弧曲面， 但于实际应用时， 也 可为一平面， 并与叶片 21的内侧面 21 1形成有预定夹角， 且因叶片 21的侧翼 片 212结构设计方式很多， 并可依实际应用予以变更侧翼片 212设置的数量、 角度与长度， 当自然风为由风车 2已展开后的复数叶片 21间所形成的空间处吹 入时， 可利用风车 2内側处的气压较低与风车 2外侧处所产生的气压差使自然 风吹入至侧翼片 212处形成回风效果， 即使风车 2的复数叶片 21受到微风吹动 时， 该基座 1的旋动轴 12转速则将逐渐加快， 进而使发电机 1 1发电效率提高。
以上说明对本发明而言只是说明性的， 而非限制性的， 本领域普通技术人 员理解， 在不脱离权利要求所限定的精神和范围的情况下， 可作出许多修改、 变化或等效， 但都将落入本发明的保护范围之内。

Claims

权 利 要 求
1、 一种具有緩沖装置的风力发电机， 包括基座、 风车及緩冲装置， 基座上 设有可供旋动轴驱动进行发电的发电机， 旋动轴外围处设置有具有复数叶片的 风车， 各叶片与旋动轴之间分别连结有至少一根支撑杆， 支撑杆一侧处枢接于 叶片内侧面上作活动偏摆， 支撑扞的另一侧处固定于旋动轴上， 其特征在于： 该基座的旋动轴与风车的各叶片之间分别连结有具有座体及伸缩杆的緩冲 装置， 伸缩杆一端上设有位于座体内作活动位移辅以减緩叶片活动偏摆时旋动 的速度的活塞头， 伸缩杆相反于活塞头的一端枢接于叶片内侧面上， 座体相反 于伸缩杆的一侧处设有至少一根枢接于旋动轴上的连杆。
2、 根据权利要求 1所述的具有緩冲装置的风力发电机， 其特征在于： 该风 车的叶片上的内侧面靠近侧边位置设有至少一个向内转折的侧翼片， 各侧翼片 与叶片的内侧面形成有夹角。
3、 根据权利要求 1所述的具有緩沖装置的风力发电机， 其特征在于： 该緩 沖装置的座体内部形成有容室， 容室储存有可供伸缩杆的活塞头活动位移产生 阻尼效果的预定油液。
4、 根据权利要求 1所述的具有緩沖装置的风力发电机， 其特征在于： 该緩 沖装置的座体内部形成有容室， 座体的容室与伸缩杆的活塞头之间设有弹性元 件， 弹性元件一端抵持于容室内壁面处， 弹性元件的另一端弹性撑抵于伸缩杆 的活塞头上作弹性变形。
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TWM460934U (zh) * 2013-03-27 2013-09-01 Hong Xing Technology Co Ltd 具緩衝裝置之風力發電機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11754035B2 (en) 2021-04-12 2023-09-12 Loubert S. Suddaby Assembly for capturing oscillating fluid energy with hinged propeller and segmented driveshaft

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JP3204736U (ja) 2016-06-16

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