WO2013120327A1 - 风力发电设备 - Google Patents

风力发电设备 Download PDF

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Publication number
WO2013120327A1
WO2013120327A1 PCT/CN2012/075689 CN2012075689W WO2013120327A1 WO 2013120327 A1 WO2013120327 A1 WO 2013120327A1 CN 2012075689 W CN2012075689 W CN 2012075689W WO 2013120327 A1 WO2013120327 A1 WO 2013120327A1
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WO
WIPO (PCT)
Prior art keywords
stator
ring
fixed
annular
rotor
Prior art date
Application number
PCT/CN2012/075689
Other languages
English (en)
French (fr)
Inventor
孙祝兵
Original Assignee
浙江联宜电机股份有限公司
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 浙江联宜电机股份有限公司 filed Critical 浙江联宜电机股份有限公司
Priority to KR1020137010310A priority Critical patent/KR101464354B1/ko
Priority to PCT/CN2012/075689 priority patent/WO2013120327A1/zh
Priority to AU2012318255A priority patent/AU2012318255B2/en
Priority to US13/879,390 priority patent/US9018790B2/en
Priority to MYPI2013001242A priority patent/MY167519A/en
Publication of WO2013120327A1 publication Critical patent/WO2013120327A1/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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • 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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • 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
    • F03D15/00—Transmission of mechanical power
    • F03D15/20—Gearless transmission, i.e. direct-drive
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
    • 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
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/15—Sectional machines
    • 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
    • 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
    • Y02E10/728—Onshore wind turbines

Definitions

  • the invention relates to a wind power generation device and belongs to the technical field of manufacturing and manufacturing wind power generation equipment.
  • Wind resources are inexhaustible. Wind power generation can reduce environmental pollution and save conventional energy such as coal and oil.
  • the wind power technology is mature, and the cost is relatively low in renewable energy, which has broad development prospects.
  • Wind power technology can be applied flexibly. It can be operated on the grid or independently from the network. It can also be combined with other energy technologies to form a power generation system.
  • the existing wind turbines transmit torque between the blades and the rotor through the rotating shaft or the gear mechanism, and usually require a higher wind speed to start, generally 3.5 m/s, and the application is limited.
  • the object of the present invention is to provide a wind power generation device with a low starting wind speed and a limited application occasion, which solves the need for a high wind speed existing in the existing wind power generator to start, generally 3.5 m/s, and its application occasion Limitations and other issues.
  • the above technical object of the present invention is mainly solved by the following technical solution: it comprises a support rod, an annular hood housing is fixed on the support rod, and a stator assembly is mounted and fixed in the annular hood housing, the stator
  • the assembly includes an annular stator mounting plate on which the inner stator ring and the outer stator ring are concentrically distributed, and the inner stator ring is composed of a plurality of inner stators evenly spaced in a circumferential direction, the outer stator
  • the stator ring is composed of a plurality of outer stators uniformly distributed in the circumferential direction, and an annular track is formed between the inner stator ring and the outer stator ring, and the rotor assembly is coaxial with the stator assembly and pivotally connected to the support rod, the total rotor
  • the rotor holder is composed of a rotor uniformly distributed on the circumference of the rotor holder, and the rotor holder is composed of a fixing frame outer ring and a
  • a blade is fixed on the blade fixing member
  • the rotor is axially convexly fixed on the outer ring of the fixing frame
  • the magnet steel of the rotor is located in the inner stator ring
  • the invention directly fixes the rotor on the outer ring of the fixed frame, so that the magnetic steel and the wind blade rotate synchronously, so that only a minimum wind speed can be started, and the minimum starting wind speed is only 0.2 m/s, and the application range is very wide, and the utility model can be applied.
  • the invention adopts a plurality of inner stators to form an inner stator ring and a plurality of outer stators to form an outer stator ring, and an annular track is formed between the inner stator ring and the outer stator ring for the rotor to operate, so that the wind can be fully driven The wind energy of the leaf turns into electricity and the conversion efficiency is high.
  • the wind blade is composed of a plurality of segment air leaf units from the outer ring of the fixing frame to the inner ring of the fixing frame, and the plurality of air leaf units are gradually widened from the outer ring of the fixing frame to the inner ring of the fixing frame, so that the rotor can be made
  • the assembly is applied as evenly as possible from the outer ring of the fixed frame to the inner ring of the fixed frame to make the equipment run more smoothly.
  • the angle between the blade unit of the plurality of blade units adjacent to the outer ring of the fixed frame and the axis of the rotor holder is smaller than the angle between the blade unit of the inner ring of the fixed frame and the axis of the rotor holder and is outside the fixed frame.
  • the inner ring of the ring is gradually increased, so that the wind can be utilized radially from the outside to the inside of the rotor assembly, so that the starting wind speed of the present invention can be further reduced.
  • the rear end edge of the annular hood outer casing is provided with two left and right symmetrically distributed tail fins extending rearward and outward from the edge of the annular hood outer casing, and the cross-section of the empennage is curved.
  • the tail fin is disposed at the rear end of the hood outer casing to automatically adjust the direction of the rotor assembly so that the rotor assembly always faces the direction of the wind; and the tail fin extends rearward and outward from the edge of the annular hood outer shell, the tail fin
  • the curved cross-section of the sheet allows the wind to more easily adjust the direction of the rotor assembly through the action of the tail.
  • the upper end of the support rod is fixed with a cross type support frame, and the rear end surface of the annular stator mounting plate is fixed with the cross type support frame, so that the stator assembly can be reliably mounted and fixed.
  • the front end of the annular hood housing forms an annular frustum
  • the outer ring of the rotor holder is located on the rear side of the annular frustum.
  • the front end of the annular hood outer casing forms an annular frustum surface, which on the one hand can play a waterproof effect on the rotor, on the other hand, it can play a role of gathering wind, so that the wind can concentrate on the wind blade.
  • the inner stator and the outer stator each comprise a flat box body and a cover body, and the box body and the cover body are sealedly connected, and the coil body and the winding body are arranged in the sealed cavity formed by the box body and the cover body.
  • a coil winding on the coil bobbin, a first lug and a second lug are respectively formed on the casing and the cover body, and the first lug and the second lug are jointly formed for the inner stator or the outer stator
  • the stator mounting plate mounting portion is provided with a circuit board connected to the coil winding on a side where the mounting portion is mated with the stator mounting plate.
  • the coil bobbin and the coil winding are disposed in the sealed box body and the cover body to protect the coil winding, and the box body and the cover body are fixed by ultrasonic welding; when the inner stator or the outer stator is in the stator mounting board After the upper fixing, the circuit connection between the stator and the stator mounting plate can be realized, and the assembly is very convenient.
  • a reinforcing rib is disposed between the first lug and the casing, so that the reliability of the connection between the mounting portion and the casing can be improved, thereby enhancing the reliable installation of the stator on the stator mounting plate.
  • the invention has the characteristics of low starting wind speed and limited application occasions.
  • Figure 1 is a schematic front perspective view of the present invention
  • Figure 2 is a schematic perspective view of a rear side of the present invention.
  • Figure 3 is a front elevational view of the present invention.
  • Figure 4 is a view taken along line A-A of Figure 3;
  • Figure 5 is a perspective view showing a three-dimensional structure of the stator assembly of the present invention.
  • Figure 6 is a schematic structural view of the inner stator and the outer stator of the present invention.
  • Figure 7 is a front view showing the structure of the rotor assembly of the present invention.
  • Figure 8 is a side elevational view showing the rotor assembly of the present invention.
  • Fig. 9 is an enlarged schematic view showing a portion B of Fig. 5.
  • annular hood housing 22 is fixed on the support rod 21, and the front end of the annular hood housing 22 forms an annular frustum surface 23, and the rear end edge of the annular hood housing 22 is provided.
  • a stator assembly 25 is mounted and fixed in the annular hood outer casing 22. As shown in FIG.
  • the stator assembly includes an annular stator mounting plate 26, and the upper end of the support rod 1 is fixed with a cross-shaped support frame 46, and the rear of the annular stator mounting plate 26 The end faces are fixed to the cross-shaped support frame 46.
  • the annular stator mounting plate 26 is fixed with a concentrically distributed inner stator ring 27 and an outer stator ring 28, and the inner stator ring 27 is composed of 68 inner stators 29 uniformly spaced in the circumferential direction, and the outer stator ring is evenly distributed by 68 circumferential directions.
  • the outer stator 30 is formed, and an annular rail 31 is formed between the inner stator ring 27 and the outer stator ring 28. As shown in FIG.
  • the inner stator and the outer stator each include a flat box body 32 and a cover body 33, and the box body 32
  • the cover body 33 is connected by ultrasonic welding, and the sealed cavity formed by the box body 32 and the cover body 33 is provided with a coil bobbin and a coil winding (not shown) wound around the bobbin.
  • a first lug 34 and a second lug 35 are formed on the cover body, and a reinforcing rib 43 is disposed between the first lug 34 and the casing 32.
  • the first lug 34 and the second lug 35 are formed together for the inner stator or the outer stator and the stator mounting plate mounting portion 36, and a circuit board connected to the coil winding is disposed on a side of the mounting portion that mates with the stator mounting plate ( Not shown in the figure).
  • the rotor assembly 37 is coaxial with the stator assembly 25 and pivotally coupled to the support rod 1, as shown in Figures 7 and 8, the rotor assembly is comprised of a rotor
  • the fixing frame 38 is composed of six rotors 39 uniformly spaced on the circumference of the rotor fixing frame, and the rotor fixing frame 38 is composed of a fixing frame outer ring 40 and a fixing frame inner ring 41, and the fixing frame outer ring 40 and the fixing frame inner ring 41 There are 15 spoke-type blade fixing members 42 between them.
  • Fig. 1 Fig. 2, Fig. 3 and Fig.
  • the rotor 39 is axially convexly fixed on the outer ring of the fixing frame and the magnetic body of the rotor.
  • the steel 45 is located in the annular track between the inner stator ring and the outer stator ring (see FIG. 9), and the blade 44 is fixed with the blade 44, and each blade is fixed from the outer ring of the fixed frame to the inner ring of the fixed frame.
  • the segment vane units 441, 442 and 443 are formed, and the vane units 441, 442 and 443 are gradually widened from the outer ring of the fixing frame to the inner ring of the fixing frame, that is, the width of the vane unit 442 is larger than the width of the vane unit 441, and the vane
  • the width of the unit 443 is greater than the width of the vane unit 442, and the retainer outer ring 40 of the rotor mount is located on the rear side of the annular frustum surface 23, and the vane units 441, 44
  • the angle between the blade unit 441 near the outer ring of the fixed frame and the axis of the rotor holder in 2 and 443 is smaller than the angle between the blade unit 443 of the inner ring of the fixed frame and the axis of the rotor holder, and the outer ring of the fixed frame is fixed to the fixed frame.
  • the inner ring gradually increases.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (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)
  • Wind Motors (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

一种风力发电设备，包括一支撑杆（21），在该支撑杆上固定有环形风罩外壳（22），该环形风罩外壳内安装固定有定子总成（25），定子总成包括一环形定子安装板（26），该环形定子安装板上固定有同心分布的内定子圈（27）和外定子圈（28），在内定子圈和外定子圈之间形成环形轨道（31），转子总成（37）与定子总成同轴且枢轴连接在支撑杆上，转子总成由转子固定架（38）和均匀间隔分布在转子固定架圆周上的转子（39）构成，转子固定架由固定架外圈（40）和固定架内圈（41）构成，在固定架外圈和固定架内圈之间设有若干辐条式结构的风叶固定件（42），风叶固定件上固定有风叶（44），转子呈轴向凸出地固定在固定架外圈上且转子的磁钢（45）位于内定子圈和外定子圈之间的环形轨道内。该风力发电设备启动风速较低，应用场合局限性较小。

Description

风力发电设备 技术领域
本发明涉及一种风力发电设备，属于风力发电设备生产制造的技术领域。
背景技术
风力资源是取之不尽用之不绝的，利用风力发电可以减少环境污染，节省煤炭、石油等常规能源。风力发电技术成熟，在可再生能源中成本相对较低，有着广阔的发展前景。风力发电技术可以灵活应用，既可以并网运行，也可以离网独立运行，还可以与其它能源技术组成互补发电***。但现有的风力发电机的叶片与转子之间多通过转轴或齿轮机构传递转矩，通常需要较高的风速才能启动，一般为3.5m/s，其应用场合局限性较大。
 技术问题
本发明目的在于提供一种启动风速较低，应用场合局限性较小的风力发电设备，解决了现有风力发电机存在的需要较高的风速才能启动，一般为3.5m/s，其应用场合局限性较大等问题。
 技术解决方案
本发明的上述技术目的主要是通过以下技术方案解决的：它包括一支撑杆，所述支撑杆上固定有环形风罩外壳，所述环形风罩外壳内安装固定有定子总成，所述定子总成包括一环形定子安装板，所述环形定子安装板上固定有同心分布的内定子圈和外定子圈，所述内定子圈由若干个圆周方向均匀间隔分布的内定子组成，所述外定子圈由若干个圆周方向均匀分布的外定子组成，在内定子圈和外定子圈之间形成环形轨道，转子总成与定子总成同轴且枢轴连接在支撑杆上，所述转子总成由转子固定架和均匀间隔分布在转子固定架圆周上的转子构成，所述转子固定架由固定架外圈和固定架内圈构成，在固定架外圈和固定架内圈之间设有若干辐条式结构的风叶固定件，风叶固定件上固定有风叶，转子呈轴向凸出地固定在固定架外圈上且转子的磁钢位于内定子圈和外定子圈之间的环形轨道内。本发明将转子直接固定固定架外圈上，使磁钢与风叶同步转动，从而仅需极小的风速即可启动，最小启动风速仅为0.2m/s，其应用范围非常广泛，可应用于家庭；另外，本发明采用若干内定子构成内定子圈和采用若干外定子构成外定子圈，而在内定子圈和外定子圈之间形成环形轨道供转子运转，从而可充分地将带动风叶转动的风能转化为电能，转化效率较高。
作为优选，所述风叶自固定架外圈到固定架内圈由若干段风叶单元构成，所述若干段风叶单元自固定架外圈向固定架内圈逐渐边宽，从而可使转子总成从固定架外圈到固定架内圈径向各处尽可能均匀受力，使设备更为平稳地运转。
作为优选，所述若干风叶单元中靠近固定架外圈的风叶单元与转子固定架轴线的夹角小于靠近固定架内圈的风叶单元与转子固定架轴线的夹角且自固定架外圈向固定架内圈逐渐增大，从而可使风沿转子总成径向自外向内得到多次的利用，从而可进一降低本发明的启动风速。
作为优选，所述环形风罩外壳的后端边缘设有两个左右对称分布的尾翼片，所述尾翼片自环形风罩外壳边缘向后并向外延伸，尾翼片的横截面呈弧形。其中，在风罩外壳的后端设置尾翼片可自动调整转子总成的方向，从而使转子总成始终朝向风来的方向；而尾翼片自环形风罩外壳边缘向后并向外延伸，尾翼片的横截面呈弧形则可使风更加容易地通过尾翼的作用来调整转子总成的方向。
作为优选，所述支撑杆上端固定有十字型支撑架，所述环形定子安装板的后端面与十字型支撑架固定，从而可对定子总成起到可靠的安装固定。
作为优选，所述环形风罩外壳的前端形成环形锥台面，所述转子固定架的固定架外圈位于所述环形锥台面的后侧。环形风罩外壳的前端形成环形锥台面一方面可起到对转子的防水作用，另一方面则可起到对风的汇聚作用，使风能够集中对作用在风叶上。
作为优选，所述内定子和外定子均包括一个扁平状的盒体和盖体，盒体和盖体之间密封连接，盒体和盖体构成的密封空腔内设有线圈骨架和绕设在线圈骨架上的线圈绕组，盒体上和盖体上分别形成有第一凸耳和第二凸耳，所述第一凸耳和第二凸耳共同形成为用于内定子或外定子与定子安装板安装部，在安装部与定子安装板配合的一侧设有与线圈绕组连接的电路板。其中，将线圈骨架和线圈绕组设置在密封的盒体和盖体内可起到对线圈绕组的防水作用，盒体和盖体之间采用超声焊接密封固定；当内定子或外定子在定子安装板上固定之后即可实现定子与定子安装板之间的电路连接，装配非常方便。
作为优选，所述第一凸耳与盒体之间设有加强肋板，从而可提高安装部与盒体连接的可靠性，进而加强定子在定子安装板上的可靠安装。
 有益效果
因此，本发明具有启动风速较低，应用场合局限性较小等特点。
 附图说明
图1是本发明的一种前侧立体结构示意图；
图2是本发明的一种后侧立体结构示意图；
图3是本发明的一种正视图；
图4是图3的A-A视图；
图5是本发明定子总成一种立体结构示意图；
图6是本发明内定子和外定子的一种结构示意图；
图7是本发明转子总成的一种主视结构示意图；
图8是本发明转子总成的一种侧视结构示意图；
图9是图5的B处放大示意图。
 本发明的最佳实施方式
如图1、图2、图3和图4所示，支撑杆21上固定有环形风罩外壳22，环形风罩外壳22的前端形成环形锥台面23，环形风罩外壳22的后端边缘设有两个左右对称分布的尾翼片24，尾翼片24自环形风罩外壳22边缘向后并向外延伸，尾翼片24的横截面呈弧形。环形风罩外壳22内安装固定有定子总成25，如图5所示，定子总成包括一环形定子安装板26，支撑杆1上端固定有十字型支撑架46，环形定子安装板26的后端面与十字型支撑架46固定。环形定子安装板26上固定有同心分布的内定子圈27和外定子圈28，内定子圈27由68个圆周方向均匀间隔分布的内定子29组成，外定子圈由68个圆周方向均匀分布的外定子30组成，在内定子圈27和外定子圈28之间形成环形轨道31，如图6所示，内定子和外定子均包括一个扁平状的盒体32和盖体33，盒体32和盖体33之间采用超声波焊接密封连接，盒体32和盖体33构成的密封空腔内设有线圈骨架和绕设在线圈骨架上的线圈绕组（图中未示出），盒体上和盖体上分别形成有第一凸耳34和第二凸耳35，第一凸耳34与盒体32之间设有加强肋板43。第一凸耳34和第二凸耳35共同形成为用于内定子或外定子与定子安装板安装部36，在安装部与定子安装板配合的一侧设有与线圈绕组连接的电路板（图中未示出）。
如图1、图2、图3和图4所示，转子总成37与定子总成25同轴且枢轴连接在支撑杆1上，如图7和图8所示，转子总成由转子固定架38和均匀间隔分布在转子固定架圆周上的6个转子39构成，转子固定架38由固定架外圈40和固定架内圈41构成，在固定架外圈40和固定架内圈41之间设有15根辐条式结构的风叶固定件42，如图1、图2、图3和图4所示，转子39呈轴向凸出地固定在固定架外圈上且转子的磁钢45位于内定子圈和外定子圈之间的环形轨道内（参见图9），风叶固定件42上固定有风叶44，每片风叶自固定架外圈到固定架内圈由三段风叶单元441、442和443构成，风叶单元441、442和443自固定架外圈向固定架内圈逐渐边宽，即风叶单元442的宽度大于风叶单元441的宽度，风叶单元443的宽度大于风叶单元442的宽度，转子固定架的固定架外圈40位于环形锥台面23的后侧，风叶单元441、442和443中靠近固定架外圈的风叶单元441与转子固定架轴线的夹角小于靠近固定架内圈的风叶单元443与转子固定架轴线的夹角且自固定架外圈向固定架内圈逐渐增大。

Claims (8)

  1. 一种风力发电设备，包括一支撑杆，其特征在于所述支撑杆上固定有环形风罩外壳，所述环形风罩外壳内安装固定有定子总成，所述定子总成包括一环形定子安装板，所述环形定子安装板上固定有同心分布的内定子圈和外定子圈，所述内定子圈由若干个圆周方向均匀间隔分布的内定子组成，所述外定子圈由若干个圆周方向均匀分布的外定子组成，在内定子圈和外定子圈之间形成环形轨道，转子总成与定子总成同轴且枢轴连接在支撑杆上，所述转子总成由转子固定架和均匀间隔分布在转子固定架圆周上的转子构成，所述转子固定架由固定架外圈和固定架内圈构成，在固定架外圈和固定架内圈之间设有若干辐条式结构的风叶固定件，风叶固定件上固定有风叶，转子呈轴向凸出地固定在固定架外圈上且转子的磁钢位于内定子圈和外定子圈之间的环形轨道内。
  2. 根据权利要求1所述的风力发电设备，其特征在于所述风叶自固定架外圈到固定架内圈由若干段风叶单元构成，所述若干段风叶单元自固定架外圈向固定架内圈逐渐边宽。
  3. 根据权利要求2所述的风力发电设备，其特征在于所述若干风叶单元中靠近固定架外圈的风叶单元与转子固定架轴线的夹角小于靠近固定架内圈的风叶单元与转子固定架轴线的夹角且自固定架外圈向固定架内圈逐渐增大。
  4. 根据权利要求1或2或3所述的风力发电设备，其特征在于所述环形风罩外壳的后端边缘设有两个左右对称分布的尾翼片，所述尾翼片自环形风罩外壳边缘向后并向外延伸，尾翼片的横截面呈弧形。
  5. 根据权利要求1或2或3所述的风力发电设备，其特征在于所述支撑杆上端固定有十字型支撑架，所述环形定子安装板的后端面与十字型支撑架固定。
  6. 根据权利要求1或2或3所述的风力发电设备，其特征在于所述环形风罩的前端形成环形锥台面，所述转子固定架的固定架外圈位于所述环形锥台面的后侧。
  7. 根据权利要求1或2或3所述的风力发电设备，其特征在于所述内定子和外定子均包括一个扁平状的盒体和盖体，盒体和盖体之间密封连接，盒体和盖体构成的密封空腔内设有线圈骨架和绕设在线圈骨架上的线圈绕组，盒体上和盖体上分别形成有第一凸耳和第二凸耳，所述第一凸耳和第二凸耳共同形成为用于内定子或外定子与定子安装板安装部，在安装部与定子安装板配合的一侧设有与线圈绕组连接的电路板。
  8. 根据权利要求8所述的风力发电设备，其特征在于所述第一凸耳与盒体之间设有加强肋板。
PCT/CN2012/075689 2012-05-18 2012-05-18 风力发电设备 WO2013120327A1 (zh)

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