CN201050443Y

CN201050443Y - Vertical-shaft windmill or wind-driven generator vane

Info

Publication number: CN201050443Y
Application number: CNU2007200239785U
Authority: CN
Inventors: 徐道强
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-25
Filing date: 2007-06-25
Publication date: 2008-04-23
Anticipated expiration: 2017-06-25

Abstract

The utility model discloses a windmill with a vertical axis or wind turbine blades, which comprises a blade wall whose inner part is hollow and which is provided with a fish shaped cross section. An opening communicated to a hollow inner chamber is arranged at one side of the fish tail part of the blade wall. When the utility model is started, the wind blows into the inner chamber and impacts the inner wall of the blades to produce larger rotating torque, which is easy to start. The utility model can be operated with small wind with good breeze operation performance. When at the following wind side, the opening faces the wind and is in resistance type; after rotating for half a circle, the utility model rotates to the upwind side, the head faces the wind and is in lifting type, therefore the utility model has the advantages of being provided with resistance type and lifting type two blades.

Description

Vertical axis windmill or wind turbine blades

(一)技术领域 (1) Technical field

本实用新型涉及一种垂直轴风车或风力发电机叶片，特别是一种鱼形结构的叶片。The utility model relates to a blade of a vertical axis windmill or a wind power generator, in particular to a blade with a fish-shaped structure.

(二)背景技术 (2) Background technology

目前横截面为鱼形的叶片其侧面为全封闭的连续弧形面，风的阻力小，为升力型叶片，广泛应用于垂直轴风车或风力发电机，垂直轴风车或风力发电机在开始运行时，鱼形叶片启动困难，并且微风时运行性能差。At present, the cross-section of the fish-shaped blade has a fully enclosed continuous arc surface on the side, and the wind resistance is small. It is a lift-type blade, which is widely used in vertical axis windmills or wind turbines. Vertical axis windmills or wind turbines are in operation. It is difficult for the fish-shaped blade to start when the wind is high, and the running performance is poor in the light wind.

(三)发明内容 (3) Contents of the invention

本实用新型要解决的技术问题是：提供一种启动容易、微风运行性能好的垂直轴风车或风力发电机叶片。The technical problem to be solved by the utility model is to provide a vertical axis windmill or a wind generator blade which is easy to start and has good running performance in light wind.

为了解决上述技术问题，本实用新型包括横截面为鱼形的内部中空的叶片壁，所述叶片壁鱼尾部位的一侧有通向中空内腔的开口。In order to solve the above-mentioned technical problems, the utility model includes a hollow blade wall with a fish-shaped cross section, and an opening leading to the hollow inner cavity is provided on one side of the fish tail of the blade wall.

为了取得较大的力矩、方便启动，所述的开口横向不越过鱼形横截面的最宽部位，纵向延伸整个叶片壁。In order to obtain larger torque and facilitate starting, the opening does not cross the widest part of the fish-shaped cross-section in the transverse direction, and extends longitudinally through the entire blade wall.

为了便于叶片的安装固定，包括有固定轴，固定轴纵向贯穿鱼形叶片壁的内腔，固定轴与叶片壁通过加强筋连接。In order to facilitate the installation and fixing of the blade, a fixed shaft is included, the fixed shaft longitudinally penetrates the inner cavity of the fish-shaped blade wall, and the fixed shaft and the blade wall are connected by reinforcing ribs.

本实用新型的有益效果是：本实用新型在启动时，风从开口进入内腔，冲击叶片的内壁，产生较大的转动力矩，易于启动，并且很小的风力就能使其运行，微风运行性能好；在顺风侧时，开口部位迎风，为阻力型，转动半周后，转动到逆风侧，头部迎风，为升力型，具有升力型和阻力型两种叶片的优点。The beneficial effects of the utility model are: when the utility model is started, the wind enters the inner cavity from the opening, impacts the inner wall of the blade, generates a relatively large rotational moment, is easy to start, and can be operated with a small wind force, and the wind can run Good performance; on the downwind side, the opening faces the wind, which is a resistance type. After half a rotation, it rotates to the upwind side, and the head faces the wind, which is a lift type. It has the advantages of both lift and resistance blades.

(四)附图说明 (4) Description of drawings

图1是本实用新型纵截面结构示意图，图2是本实用新型横截面结构示意图。Fig. 1 is a schematic diagram of a longitudinal section of the utility model, and Fig. 2 is a schematic diagram of a cross section of the utility model.

其中：1、加强筋，2、固定轴，3、叶片壁。Among them: 1. Rib, 2. Fixed shaft, 3. Blade wall.

(五)具体实施方式 (5) Specific implementation methods

如图1、图2所示的一种具体实施例，它包括叶片壁3和固定轴2，叶片壁3的横截面中部宽、两端窄，呈鱼形，叶片壁3在纵向上具有一定高度，叶片壁3的鱼形内腔中空，其鱼尾部位的一侧有通向内腔的开口，该开口横向不越过鱼形横截面的最宽部位，开口纵向延伸整个叶片壁3，使得叶片的侧面为半封闭结构，风能从开口进入叶片壁3的内腔。A kind of specific embodiment shown in Fig. 1, Fig. 2, it comprises blade wall 3 and fixed shaft 2, and the middle part of the cross section of blade wall 3 is wide, both ends are narrow, and is fish-shaped, and blade wall 3 has a certain length vertically. height, the fish-shaped inner cavity of the blade wall 3 is hollow, and there is an opening leading to the inner cavity on one side of the fish tail. The side of the blade is a semi-closed structure, and wind energy enters the inner cavity of the blade wall 3 through the opening.

固定轴2纵向贯穿鱼形叶片壁3的内腔，固定轴2上每隔一定距离则向四周辐射有多根连接到叶片壁3上的加强筋1。The fixed shaft 2 runs through the inner cavity of the fish-shaped blade wall 3 longitudinally, and there are multiple reinforcing ribs 1 connected to the blade wall 3 radiating around the fixed shaft 2 at regular intervals.

Claims

1. A vertical axis windmill or wind generator blade, comprising a hollow blade wall (3) with a fish-shaped cross section, characterized in that: one side of the fish tail portion of the blade wall (3) has a hollow The opening of the lumen.

2. The vertical axis windmill or wind generator blade according to claim 1, characterized in that: said opening does not cross the widest part of the fish-shaped cross-section in the transverse direction, and extends the entire blade wall (3) longitudinally.

3. The vertical axis windmill or wind generator blade according to claim 1 or 2, characterized in that: it includes a fixed shaft (2), the fixed shaft (2) longitudinally penetrates the inner chamber of the fish-shaped blade wall 3), and is fixed The shaft (2) is connected with the blade wall (3) through a reinforcing rib (1).