WO2015113262A1 - 多角度垂直轴风力发电机 - Google Patents

多角度垂直轴风力发电机 Download PDF

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Publication number
WO2015113262A1
WO2015113262A1 PCT/CN2014/071780 CN2014071780W WO2015113262A1 WO 2015113262 A1 WO2015113262 A1 WO 2015113262A1 CN 2014071780 W CN2014071780 W CN 2014071780W WO 2015113262 A1 WO2015113262 A1 WO 2015113262A1
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WO
WIPO (PCT)
Prior art keywords
wing plate
plate
left wing
axis wind
vertical axis
Prior art date
Application number
PCT/CN2014/071780
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English (en)
French (fr)
Inventor
何嘉庆
李成波
Original Assignee
广州华力新能源发展有限公司
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 广州华力新能源发展有限公司 filed Critical 广州华力新能源发展有限公司
Priority to PCT/CN2014/071780 priority Critical patent/WO2015113262A1/zh
Priority to CN201480039706.7A priority patent/CN105452650B/zh
Publication of WO2015113262A1 publication Critical patent/WO2015113262A1/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
    • 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
    • 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
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • F05B2240/214—Rotors for wind turbines with vertical axis of the Musgrove or "H"-type
    • 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 present invention relates to a machine for converting natural wind energy into useful mechanical energy and converting said mechanical energy into electrical energy, and more particularly to a wind power generator having an axis of rotation substantially at right angles to the wind direction.
  • Wind turbines convert wind energy into mechanical energy and drive generators to generate electricity. Broadly speaking, it is a thermal energy utilization generator that uses the sun as a heat source and the atmosphere as a working medium. Wind power uses natural energy. It is much better than diesel power generation.
  • China Utility Model Wind Turbine published as CN 2747378 Y, dated 2005-12-21, discloses a wind turbine that can drive a generator to rotate using wind in any direction.
  • the wind turbine includes a generator, a wind turbine, and a support connection.
  • the outer casing ⁇ of the generator is fixedly connected to the inner wall of the sleeve 3' in the wind turbine 2', and the main shaft 4' is fixedly connected to the end of the support rod 6' via the connecting flange 5', and the other end of the support rod 6'
  • the outboard wind turbine 2' is fixedly connected to the base on the ground by a connecting piece 7', and the wind turbine 2' includes left and right flaps 8', 9' and a middle wing formed by the front and rear wind flow direction plates 10', 1'
  • the front and rear plates of the middle wing plate are arched in section, and are connected to each other to form a rugby-shaped hollow casing, and the long axis of the rugby-shaped hollow casing is clockwise and the upper and lower plates 12', 13' are long.
  • the angle of the line is 30°
  • the sleeve 3' is installed in the center of the hollow shell, and the two ends are vertically fixedly connected with the upper and lower plates 12', 13' respectively; the upper and lower plates 12', 13' are respectively left and left
  • the right wing panels 8', 9' are fixedly connected, wherein the left and right wing panels 8', 9' are formed by a cylindrical surface 14' having an arcuate cross section, a cylindrical surface 15' having a semicircular cross section, and two end portions 16' of the ear shape.
  • the arcuate cylindrical surface 14' is outwardly convex, and one side thereof is fixedly connected to the semicircular cylindrical surface 15', and the radius of the arcuate cylindrical surface 14' is the radius of rotation of the wind turbine.
  • the shape of the cross section of the left wing panel and the right wing panel is a concave and convex airfoil shape.
  • the left and right wing panels have lower utilization of wind energy. For example, when the wind blows from the left rear of the left wing to the right front, the wind is broken up by the big end into two turbulences that flow to the outer surface and the inner surface. Since the inner surface is concave in the arc, the turbulent flow is concave toward the small end. This way There is no significant difference in the air pressure between the outer surface and the inner surface.
  • the technical problem to be solved by the present invention is to provide a multi-angle vertical axis wind power generator with high utilization of wind energy and obvious difference in air pressure between the inner and outer surfaces.
  • the multi-angle vertical-axis wind power generator of the present invention comprises a base, a lower rod, a generator, a lower plate, a left wing plate, a middle wing plate, a right wing plate and an upper plate.
  • the lower rod is fixedly coupled to the base.
  • the two ends of the upper plate and the lower plate are respectively fixedly connected with the left wing plate and the right wing plate, the middle wing plate is fixed at the middle of the upper and lower plates, and the lower plate is rotatably mounted on the lower rod, and the left wing plate and the right wing plate have the same shape structure.
  • the left and right wing plates are arranged symmetrically about the axis of the rod.
  • the cross-section of the left and right flaps is in the shape of a flat-convex airfoil, and the inner surfaces of the left and right flaps are planar.
  • the angle Za between the vertical imaginary plane passing through the two vertex connections of the cross section of the middle wing and the inner surface of the left wing is 39 ° - 59 °.
  • the angle Za between the vertical imaginary plane and the inner surface of the left wing passing through the two vertices of the cross section of the middle wing is 49 °.
  • the length L1 between the two apexes of the cross section of the middle wing plate is 1/3 of the distance L2 between the front end of the left wing plate and the front end of the right wing plate.
  • a reinforcing rib is disposed between the base and the lower rod.
  • the ribs are evenly distributed around the axis of the lower rod.
  • the multi-angle vertical-axis wind power generator of the present invention is different from the prior art in that the multi-angle vertical-axis wind power generator of the present invention changes the shape of the cross-section of the left and right wing plates to a flat-convex airfoil shape and fits the placement angle.
  • the turbulent flow quickly disengages from the inner surface, so that a low pressure region is formed between the air turbulence and the inner surface, wherein the inner surface is close to The atmospheric pressure is lowest at the big end.
  • the multi-angle vertical axis wind turbine of the present invention makes full use of wind energy.
  • the background wind turbine and the new technical solution multi-angle vertical axis wind turbine with a height of 2.3 m in the middle wing and a closest distance of 3.4 m in the left and right wing plates are 39° and 59°. At 49°, the wind power test is performed under the same wind speed, temperature, humidity, and air pressure. The obtained power generation power data is an average value after ten measurements.
  • a new technical solution Za is a new technical solution Za is a new technical solution Za is a wind power
  • the multi-angle vertical-axis wind turbine of the present invention passes the length L1 between the two vertices of the cross section of the middle wing plate to be 1/3 of the distance L2 between the front end of the left wing panel and the front end of the right wing panel, thereby ensuring the size of the above-mentioned large windward opening and small windward opening.
  • the gap makes the circumferential force of the multi-angle vertical-axis wind power generator of the present invention larger, and minimizes the problem that the middle wing plate is too large when rotating due to the excessively large middle wing plate.
  • the multi-angle vertical-axis wind power generator of the present invention adopts a long curved edge of a cross section of the left wing plate as an arc, and a center of a long curved edge is located at a center of the middle wing plate, and the left wing plate and the right wing plate have the same structure, so that the left wing plate and the right wing plate The wind resistance is greatly reduced during the rotation.
  • Figure 1 is an isometric view of the background art
  • Figure 3 is an isometric view of a multi-angle vertical axis wind turbine
  • Figure 4 is a plan view of a multi-angle vertical axis wind turbine
  • Figure 5 is a front view of a multi-angle vertical axis wind turbine
  • Figure 6 is a partial enlarged view of a portion A in Figure 5;
  • Figure 7 is a diagram showing the length of the line segment in Figure 4.
  • the multi-angle vertical axis wind power generator of the present invention includes a generator 22, a base 1, a lower rod 2, an upper rod 21, a lower plate 3, a left wing plate 42, a middle wing plate 41, and a right wing plate 43. And on the tablet 5.
  • the base 1 is fixedly coupled to the lower rod 2.
  • the base 1 and the lower rod 2 are reinforced by the ribs 11.
  • the ribs 11 are evenly distributed around the axis of the lower rod 2 by eight.
  • the lower rod 2 is fixed with a lower plate 3 through a bearing.
  • the lower plate 3 is in the left-right direction, and the upper end surface of the lower plate 3 is fixed with the left wing plate 42, the middle wing plate 41, and the right wing plate 43 from left to right.
  • the upper end faces of the left wing plate 42, the middle wing plate 41, and the right wing plate 43 are fixed to each other by the upper flat plate 5.
  • the left wing plate 42 is vertically disposed, and the left wing plate 42 has a cross-sectional shape of a flat convex airfoil shape, and the rear portion of the left wing plate 42 has the same shape as the large end of the wing, and the left wing plate 42 has a front portion and a machine.
  • the small end of the wing has the same shape
  • the inner surface of the left wing 42 is a flat surface
  • the outer surface of the left wing 42 has the same shape as the upper surface of the wing.
  • the long curved side 421 of the cross section of the left wing plate 42 is an arc, and the center of the arc is located at the axis of the lower rod 2.
  • the right wing plate 43 and the left wing plate 42 are identical in shape.
  • the left wing plate 42 and the right wing plate 43 are arranged symmetrically about the axis of the rod 2 below.
  • the middle wing 41 is vertically disposed, and the middle wing 41 includes a middle front plate 411 and a middle rear plate 412.
  • the middle front plate 411 has an arcuate cross section.
  • the middle rear plate 412 has an arcuate cross section.
  • the central front plate 411 and the middle rear plate 412 are identical in shape, and the middle front plate 411 and the middle rear plate 412 are connected in a hollow shape having a rugby-shaped cross section.
  • the angle Za between the vertical imaginary plane made by the two vertices of the cross section of the middle wing 41 and the inner surface of the left wing 42 is 39 ° - 59 °, preferably Za is 49 °.
  • the length L1 between the two apexes of the cross section of the middle wing 41 is 1/3 of the distance L2 between the front end of the left wing 42 and the front end of the right wing 43.
  • the upper wing 21 is provided in the middle wing 41.
  • the upper rod 21 axis coincides with the rotation axis of the middle wing plate 41, and the upper rod 21 is fixedly coupled to the upper plate 5 and the lower plate 3.
  • a generator 22 is provided in the upper rod 21.
  • the generator 22 includes a core shaft 221 and a generator housing 222.
  • the generator housing 222 is fixedly connected to the upper rod 21, and two permanent magnets are symmetrically disposed on the left and right sides of the generator housing 222, and the generator housing 222 is fixed with a core shaft 221 through bearings.
  • the bottom of the iron core shaft 221 is fixedly connected to the lower rod 2.
  • the multi-angle vertical axis wind turbine of the present invention is fixed at any windy place.
  • the right wing plate 43 and the middle wing plate 41 form a smaller windward opening, the wind resistance is larger, and the left wing plate 42 and the middle wing plate 41 form a larger windward opening. Wind resistance is small. Therefore, the multi-angle vertical-axis wind turbine of the present invention accelerates clockwise around the rotation axis of the middle wing 41.
  • the multi-angle vertical-axis wind turbine of the present invention rotates clockwise around the rotation axis of the middle wing 41. As shown in FIG.
  • the flow velocity slowing down time at the small end of the left wing plate 42 is greater than the flow velocity slowing time of the left end of the left wing plate 42, and a clockwise rotational torque occurs, so that the left wing plate 42 accelerates clockwise, and the right wing plate 43 accelerates in the same direction.
  • the left wing plate 42 and the right wing plate 43 accelerate in a clockwise direction.
  • the cross section of the left wing 42 is the same as the shape of the wing, and the inner surface of the left wing 42 has an angle with the tangent of its motion trajectory, so the left wing 42 is generated away from the axis of the upper rod 21 according to the principle of the wing after the starting motion.
  • the right wing plate is similar to the left wing plate.
  • the force component of the right wing plate 43 away from the center of the circle and the component force of the left wing plate away from the center of the circle are zero, and the circumferential component of the right wing plate 43 is opposite to the circumferential component of the left wing plate 42.
  • the multi-angle vertical-axis wind turbine of the present invention is continuously accelerated in rotation, and rotation can be started in a clockwise direction at any angle.
  • the cross-section of the left wing plate 42 and the right wing plate 43 has a shape of a flat convex airfoil and cooperates with the arrangement angle, so that the air generated by the inner surface of the left wing plate 42 can be turbulent from the inside.
  • the turbulent flow quickly deviates from the inner surface, forming a low pressure zone between the air turbulence and the inner surface, wherein the inner surface is at the lowest pressure near the large end.
  • the multi-angle vertical-axis wind turbine of the present invention makes full use of wind energy.
  • the multi-angle vertical axis wind turbine of the present invention converts mechanical energy into electrical energy by generator 22 for external power generation.
  • the multi-angle vertical-axis wind power generator of the invention can even be installed in a place where there are frequent hurricanes such as the north pole and the high mountain, and the hurricane wind direction constantly changes, providing the required electric energy for human life, once and for all, benefiting the country and the people, and benefiting the people of the world.
  • the multi-angle vertical axis wind turbine of the present invention has a significant impact on wind power generation.
  • the multi-angle vertical-axis wind power generator of the invention makes the wind power generator have high utilization rate of wind energy and obvious difference in air pressure between the inner and outer surfaces.
  • the power generation of the multi-angle vertical-axis wind turbine of the present invention is significantly improved compared with the background technology, and can supply more users.
  • the multi-angle vertical-axis wind power generator of the invention has strong industrial applicability and operability, and is of great significance for fully utilizing the wind energy of nature to be converted into electric energy.

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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)
  • Wind Motors (AREA)

Abstract

多角度垂直轴风力发电机是一种具有基本上与风向成直角的旋转轴线的风力发电机。该多角度垂直轴风力发电机包括底座、下杆、发电机、下平板、左翼板、中翼板、右翼板和上平板。左翼板和右翼板形状结构完全相同，左翼板和右翼板以下杆轴线为中心对称布置。左翼板和右翼板的横截面的形状为平凸翼型，左翼板和右翼板的内表面为平面。中翼板横截面两顶点连线所作的竖直假想平面与左翼板内表面之间的夹角∠a为39°-59°。该多角度垂直轴风力发电机左翼板和右翼板小端附近的气流会从内表面靠近小端处流向气压较低的内表面靠近大端处，形成附加的空气动力推动翼板，使该多角度垂直轴风力发电机更加充分利用风能。

Description

多角度垂直轴风力发电机
技术领域
本发明涉及一种将自然界的风能转变成有用的机械能， 并把上述机械能转化成电能的机 械， 特别是涉及一种具有基本上与风向成直角的旋转轴线的风力发电机。 背景技术
作为一种价格低廉、 运行可靠、 无温室气体排放的新型发电系统， 风力发电系统的安装 量正在以每年超过 30%速度的增长。 风力发电在世界范围得到日益广泛的应用， 已经形成一 个年产值超过五十亿美元的全球性产业。 但是用于边远地区独立供电的小型风力发电系统还 需要克服很多技术上的难点才能得以广泛的应用。
风力发电机是将风能转换为机械能、 并带动发电机运转来发电的。 广义地说， 它是一种 以太阳为热源， 以大气为工作介质的热能利用发电机。 风力发电利用的是自然能源。 相对柴 油发电要好的多。
中国实用新型风力发电机， 公开号为 CN 2747378 Y， 公开日期为 2005-12-21， 公开了一 种利用任何方向的风力都能驱动发电机旋转的风力发电机。 如图 1和图 2所示， 该风力发电 机包括发电机、 风涡轮和支撑连接件。 其中发电机的外壳 Γ 与风涡轮 2' 中的套管 3 ' 的内 壁固定连接， 它的主轴 4' 通过连接法兰 5 ' 与支撑杆 6' —端固定连接， 支撑杆 6' 的另一 端伸出风涡轮 2'外通过连接件 7'与地面上的基座固定连接， 风涡轮 2'包括左、右翼板 8 '、 9' 以及前后风力流向板 10'、 1 Γ 构成的中翼板， 中翼板的前后板断面呈弓形， 且相互连成 断面为橄榄球形的空心壳体，且这个橄榄球形空心壳体的长轴沿顺时针方向与上、下平板 12'、 13 ' 长中心线的夹角为 30° ， 套管 3 ' 装于空心壳体中心， 两端分别与上、 下平板 12'、 13 ' 垂直固定连接； 上、 下平板 12'、 13 ' 两端分别与左、 右翼板 8 '、 9' 固定连接， 其中左、 右 翼板 8 '、 9' 由断面为弓形的圆柱面 14'、 断面为半圆形的圆柱面 15 ' 和两个耳形的端面 16' 连为一体构成， 且左、 右翼板 8 '、 9' 对称但方位相反地安置， 弓形的圆柱面 14' 向外凸起， 其一边与半圆形的柱面 15 ' —边固定连接， 弓形的圆柱面 14' 的半径为风涡轮的转动半径。
其中， 左翼板和右翼板横截面的形状为凹凸翼型。 经过长期的实践摸索， 此种左翼板和 右翼板对于风能的利用率较低。 例如风从左翼板的左后方吹向右前方时， 风由大端被打散成 流向外表面和内表面的两股湍流。 由于内表面呈弧线凹形， 湍流顺弧线凹形流向小端。 这样 就未造成外表面和内表面气压的显著差异表现。
发明内容
本发明要解决的技术问题是提供一种风能利用率高、 内外表面气压差异明显的多角度垂 直轴风力发电机。
本发明多角度垂直轴风力发电机， 包括底座、 下杆、 发电机、 下平板、 左翼板、 中翼板、 右翼板和上平板。 所述下杆固定连接在底座上。 所述上平板和下平板的两端分别与左翼板和 右翼板固定连接， 中翼板固定在上、 下平板的中部， 下平板转动的安装在下杆上， 左翼板和 右翼板形状结构完全相同， 左翼板和右翼板以下杆轴线为中心对称布置。 所述左翼板和右翼 板的横截面的形状为平凸翼型， 左翼板和右翼板的内表面为平面。 所述通过中翼板横截面两 顶点连线所作的竖直假想平面与左翼板内表面之间的夹角 Za为 39 ° — 59 ° 。
本发明多角度垂直轴风力发电机， 其中所述通过中翼板横截面两顶点连线所作的竖直假 想平面与左翼板内表面之间的夹角 Za为 49 ° 。
本发明多角度垂直轴风力发电机，其中所述中翼板横截面两顶点之间长度 L1为左翼板前 端到右翼板前端之间距离 L2的 1/3。
本发明多角度垂直轴风力发电机， 其中所述左翼板横截面的长弧形边为圆弧。 所述圆弧 的圆心位于下杆轴线处。
本发明多角度垂直轴风力发电机， 其中所述底座和下杆之间设有加强筋。 所述加强筋绕 下杆的轴均匀分布 8个。
本发明多角度垂直轴风力发电机与现有技术不同之处在于本发明多角度垂直轴风力发电 机通过将左翼板和右翼板的横截面的形状改为平凸翼型并且配合摆放角度， 能够使左翼板内 表面产生的空气湍流自内表面靠近大端处向内表面靠近小端处流动时，湍流快速脱离内表面， 使空气湍流与内表面之间形成低气压区， 其中内表面靠近大端部位气压最低。 随着空气湍流 的发散， 左翼板和右翼板小端附近的气流会从内表面靠近小端处流向气压较低的内表面靠近 大端处， 形成附加的空气动力推动左翼板和右翼板， 使本发明多角度垂直轴风力发电机更加 充分利用风能。
现将中翼板高 2. 3米、 左右翼板最近距离 3. 4米的由铝合金材料制成的背景技术风力发 电机和新技术方案多角度垂直轴风力发电机 为 39° 、 59° 和 49° 时， 置于相同风速、温度、 湿度、 气压的条件下进行风力发电测试。 所得发电功率数据均为测量十次后的平均值。 背景技术 新技术方案 Za为 新技术方案 Za为 新技术方案 Za为 风力
风速 (m/s ) 发电功率 39° 时的发电功率 59° 时的发电功率 49 ° 时的发电功率 等级
(w) (w) (w) (w)
3级 3,4-5.4 18. 9 25. 1 23. 2 32. 2
4级 5.5-7.9 73. 2 93. 4 90. 9 108. 6
5级 8.0- 10.7 216. 7 421. 6 410. 1 504. 2
6级 10,8-13.8 499. 9 853. 6 846. 3 1226. 3
7级 13.9-17.1 903. 4 1762. 2 1651. 3 2399. 2
8级 17.2-20.7 1363. 8 2657. 8 2462. 3 3712. 2
9级 20.8-24.4 1659. 6 3459. 3 3254. 1 4560. 1
10级 2^.5-28.4 2943. 3 4862. 1 4531. 7 5438. 2 本发明多角度垂直轴风力发电机通过中翼板横截面两顶点连线所作的竖直假想平面与左 翼板内表面之间的夹角 Za为 49 ° ， 能够最大限度保证本发明多角度垂直轴风力发电机的周 向力， 并且最小程度的减少本发明多角度垂直轴风力发电机旋转时的风阻， 此角度为多年实 践验证的最佳角度。
本发明多角度垂直轴风力发电机通过中翼板横截面两顶点之间长度 L1 为左翼板前端到 右翼板前端之间距离 L2的 1/3， 保证了上述大迎风口和小迎风口的尺寸差距， 使本发明多角 度垂直轴风力发电机的周向力更大， 又尽可能减少因中翼板过大造成的中翼板在旋转时风阻 过大的问题。
本发明多角度垂直轴风力发电机通过左翼板横截面的长弧形边为圆弧， 长弧形边的圆心 位于中翼板圆心处， 左翼板与右翼板结构相同， 使左翼板和右翼板在转动过程中风阻大大减 小。
本发明多角度垂直轴风力发电机通过加强筋能够使下杆和底座更好地固定， 增加本发明 多角度垂直轴风力发电机的强度和刚性。
下面结合附图对本发明的多角度垂直轴风力发电机作进一步说明。 附图说明
图 1是背景技术的轴测视图；
图 2是背景技术的局部放大图；
图 3是多角度垂直轴风力发电机的轴测视图;
图 4是多角度垂直轴风力发电机的俯视图；
图 5是多角度垂直轴风力发电机的主视图；
图 6是图 5中 A处的局部放大图； 图 7是图 4中线段长度标注图。
具体实施方式
如图 3—图 7所示， 本发明多角度垂直轴风力发电机包括发电机 22、 底座 1、 下杆 2、 上 杆 21、 下平板 3、 左翼板 42、 中翼板 41、 右翼板 43和上平板 5。
如图 3和图 5所示， 底座 1与下杆 2的固定连接。底座 1和下杆 2通过加强筋 11加强固 定。加强筋 11绕下杆 2的轴均匀分布 8个。下杆 2通过轴承固定有下平板 3。在图 4所示中， 下平板 3为左右方向， 下平板 3的上端面从左到右固定有左翼板 42、 中翼板 41和右翼板 43。 左翼板 42、 中翼板 41、 右翼板 43的上端面通过上平板 5相互固定。
如图 4和图 5所示， 左翼板 42竖直设置， 左翼板 42的横截面形状为平凸翼型， 左翼板 42后部与机翼的大端形状相同， 左翼板 42前部与机翼的小端形状相同， 左翼板 42的内表面 为平面， 左翼板 42的外表面与机翼的上表面形状相同。 左翼板 42横截面的长弧形边 421为 圆弧， 圆弧的圆心位于下杆 2轴线处。 右翼板 43与左翼板 42形状结构完全相同。 左翼板 42 和右翼板 43以下杆 2轴线为中心对称布置。
如图 4和图 5所示， 中翼板 41竖直设置， 中翼板 41包括中前板 411和中后板 412。 中 前板 411的横截面为弓形。 中后板 412的横截面为弓形。 中前板 411和中后板 412的结构形 状完全相同， 中前板 411和中后板 412连成横截面为橄榄球形的空心壳体。
如图 4所示， 通过中翼板 41横截面两顶点连线所作的竖直假想平面与左翼板 42内表面 之间的夹角 Za为 39 ° — 59 ° ， 优选 Za为 49 ° 。
如图 4和图 7所示， 中翼板 41横截面两顶点之间长度 L1为左翼板 42前端到右翼板 43 前端之间距离 L2的 1/3。 中翼板 41内设有上杆 21。 上杆 21轴线与中翼板 41的旋转轴线重 合， 上杆 21与上平板 5和下平板 3固定连接。
如图 6所示， 上杆 21内设有发电机 22。 发电机 22包括铁芯轴 221和发电机外壳 222。 发电机外壳 222与上杆 21固定连接， 发电机外壳 222左右两侧对称设有两个永磁铁， 发电机 外壳 222通过轴承固定有铁芯轴 221。 铁芯轴 221底部与下杆 2固定连接。
使用时， 将本发明多角度垂直轴风力发电机固定在任意有风处。 如图 4所示， 当风从后 向前方向流动时， 右翼板 43和中翼板 41形成的迎风口较小， 风阻较大， 左翼板 42和中翼板 41形成的迎风口较大， 风阻较小。 所以本发明多角度垂直轴风力发电机绕中翼板 41 的旋转 轴线顺时针加速转动。 当风从前向后方向流动时， 同理本发明多角度垂直轴风力发电机绕中 翼板 41 的旋转轴线顺时针加速转动。 如图 4所示， 当风自左向右流动时， 气流通过左翼板 42外表面打散成分别流向左翼板 42外表面靠近大端处和左翼板 42外表面靠近小端 （前端） 处的附着在左翼板 42表面的湍流。 因为左翼板 42外表面的大端 （后端） 更为圆润， 表面积 较大， 所以湍流经大端流过时， 湍流流速会逐渐变慢。 因左翼板 42外表面的小端为刀锋状， 所以湍流经突变形状的小端流过时， 会形成众多的湍流附着在小端， 空气流速在小端得以保 持， 随着湍流不稳定的消散而减缓。 就使得在左翼板 42小端的流速减缓时间大于左翼板 42 大端的流速减缓时间， 出现顺时针方向的转动力矩， 所以左翼板 42顺时针加速转动， 右翼板 43同理加速转动。 同理当风自右向左流动时， 左翼板 42、 右翼板 43顺时针加速转动。 并且 左翼板 42的横截面与机翼的形状相同， 左翼板 42的内表面与其运动轨迹的切线有夹角， 所 以左翼板 42在启动运动之后依照机翼的原理产生远离上杆 21轴线方向的分力和顺时针的周 向分力。右翼板与左翼板同理， 右翼板 43远离圆心方向的分力与左翼板远离圆心的分力的合 力为零， 右翼板 43的周向分力和左翼板 42的周向分力方向相反， 使本发明多角度垂直轴风 力发电机持续加速旋转， 并且任何角度都能沿顺时针方向启动旋转。
在本发明多角度垂直轴风力发电机旋转过程中， 左翼板 42和右翼板 43的横截面的形状 为平凸翼型并且配合摆放角度，能够使左翼板 42内表面产生的空气湍流自内表面靠近大端处 向内表面靠近小端处流动时， 湍流快速脱离内表面， 使空气湍流与内表面之间形成低气压区， 其中内表面靠近大端部位气压最低。 随着空气湍流的发散， 左翼板 42和右翼板 43小端附近 的气流会从内表面靠近小端处流向气压较低的内表面靠近大端处， 形成附加的空气动力推动 左翼板和右翼板， 使本发明多角度垂直轴风力发电机更加充分利用风能。 最后， 本发明多角 度垂直轴风力发电机通过发电机 22将机械能转化为电能对外发电。
本发明多角度垂直轴风力发电机甚至能够安装在北极、 高山等经常有飓风， 且飓风风向 经常变化的地方， 为人类的生活提供所需电能， 一劳永逸， 利国利民， 造福世界人民。
以上所述的实施例仅仅是对本发明的优选实施方式进行描述， 并非对本发明的范围进行 限定， 在不脱离本发明设计精神的前提下， 本领域普通技术人员对本发明的技术方案作出的 各种变形和改进， 均应落入本发明权利要求书确定的保护范围内。 工业实用性
本发明多角度垂直轴风力发电机对于风力发电具有重大影响。 本发明多角度垂直轴风力 发电机使得风力发电机对风能利用率高、 内外表面气压差异明显。 经过具体实验检验， 本发 明多角度垂直轴风力发电机的发电功率较背景技术相比有着显著提高，可以为更多用户供电。 本发明多角度垂直轴风力发电机具有很强的工业实用性和可操作性， 对于充分利用大自然的 风能转化成电能意义重大。

Claims

1、一种多角度垂直轴风力发电机， 包括底座（1 )、下杆（2)、发电机（22)、下平板（3)、 左翼板（42)、 中翼板（41 )、右翼板（43)和上平板（5)， 所述下杆（2)固定连接在底座（1 ) 上， 所述上平板 （5) 和下平板 （3) 的两端分别与左翼板 （42 ) 和右翼板 （43) 固定连接， 中翼板 （41 ) 固定在上、 下平板 （5、 3) 的中部， 下平板 （3) 转动的安装在下杆 （2) 上， 左翼板 （42) 和右翼板 （43) 形状结构完全相同， 左翼板 （42) 和右翼板 （43) 以下杆 （2) 轴线为中心对称布置， 其特征在于： 所述左翼板 （42) 和右翼板 （43) 的横截面的形状为平 凸翼型， 左翼板 （42) 和右翼板 （43) 的内表面为平面， 所述通过中翼板 （41 ) 横截面两顶 点连线所作的竖直假想平面与左翼板 （42) 内表面之间的夹角 Za为 39° — 59° 。
2、根据权利要求 1所述的多角度垂直轴风力发电机，其特征在于：所述通过中翼板（41 ) 横截面两顶点连线所作的竖直假想平面与左翼板 （42) 内表面之间的夹角 Za为 49° 。
3、 根据权利要求 2所述的多角度垂直轴风力发电机， 其特征在于： 所述中翼板（41 )横 截面两顶点之间长度 （L1 ) 为左翼板 （42) 前端到右翼板 （43) 前端之间距离 （L2) 的 1/3。
4、 根据权利要求 3所述的多角度垂直轴风力发电机， 其特征在于： 所述左翼板（42)横 截面的长弧形边 （421 ) 为圆弧， 所述圆弧的圆心位于下杆 （2) 轴线处。
5、 根据权利要求 4所述的多角度垂直轴风力发电机， 其特征在于： 所述底座 （1 ) 和下 杆 （2) 之间设有加强筋 （11 )， 所述加强筋 （11 ) 绕下杆 （2) 的轴均匀分布 8个。
PCT/CN2014/071780 2014-01-29 2014-01-29 多角度垂直轴风力发电机 WO2015113262A1 (zh)

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CN2747378Y (zh) * 2004-10-10 2005-12-21 李成波 风力发电机
CN2937539Y (zh) * 2006-08-03 2007-08-22 张帅 导流式风力发电机
TW201040387A (en) * 2009-05-11 2010-11-16 Global Energy Co Ltd Longitudinal wing of longitudinal-axle windmill
US20130076036A1 (en) * 2009-09-17 2013-03-28 Western Michigan University Research Foundation Method and device for power generation
CN203717255U (zh) * 2014-01-29 2014-07-16 广州华力新能源发展有限公司 多角度垂直轴风力发电机

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2747378Y (zh) * 2004-10-10 2005-12-21 李成波 风力发电机
CN2937539Y (zh) * 2006-08-03 2007-08-22 张帅 导流式风力发电机
TW201040387A (en) * 2009-05-11 2010-11-16 Global Energy Co Ltd Longitudinal wing of longitudinal-axle windmill
US20130076036A1 (en) * 2009-09-17 2013-03-28 Western Michigan University Research Foundation Method and device for power generation
CN203717255U (zh) * 2014-01-29 2014-07-16 广州华力新能源发展有限公司 多角度垂直轴风力发电机

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