Wind driven device and composite set thereof

Abstract

The invention provides a wind driven deice which is used for converting wind into kinetic energy and comprises a base frame, a rib frame and a plurality of ribs, wherein the rib frame is connected with the base frame via a bearing, a rotation axis passes through the bearing, and the rib frame rotates oppositely to the base frame by taking the rotation shaft as a center; and each rib is provided with an erect wing span, and all the ribs are arranged on the rib frame in a mode of being in parallel with the wing span, and the included angle between the wing span and the rotation axis is larger than zero degree.

Description

technical field [0001] The present invention relates to a wind drive device, in particular to a wind motor having an axis of rotation substantially at right angles to the wind direction. Background technique [0002] In recent years, under the global trend of increasing environmental protection awareness and rising oil prices, the market for renewable energy such as wind power has begun to grow rapidly. In terms of parallel operation of modular wind turbines, Becker et al. proposed in US-7132760 that the vertical axis Although the wind power generation system in which the wind turbine is placed and operated in a horizontal manner loses the advantage of facing the wind in multiple directions, the vertical axis device has the advantages of relatively low visual impact and high safety, so it is suitable for direct installation on the roof of a residential building. However, because Becker's design puts too much emphasis on the appearance design of the drag blades, in addition t...

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Problems solved by technology

[0005] In terms of domestic patents, Invention Patent No. I284180 proposed the design of parallel operation of multiple vertical axis wind turbine blades in a coaxial configuration. However, the design efficiency of the blades is too low, and the vertical installation configuration is maintained, which limits the parallel modules. development of

In the new patent No. M288334, the design of using resistance blades and ratchets can effectively improve the starting performance, but the overly complicated mechanism also relatively increases the cost of manufacturing and maintenance

[0006] From the above introduction, we can see that the current mainstream of international research and development is to build larger and more expensive models, and this trend is not suitable for the development of domestic industries.

Modular wind turbines use standardized components and parallel operation configurations, which can make up for the shortcomings of traditional small wind turbine designs in quantity, and are more flexible in installation, without restrictions on towers or sites, so they can be achieved at a relatively low cost. The purpose of clean power generation, but since almost all commercial wind farms on this island are owned by consortiums, the development of small modular wind turbines for application in public construction or residential areas will become a new development and outlet for the wind power market. However, At present, most of the small wind turbines on the market have the disadvantage of poor performance when starting at low speed, so they are not suitable for installation in areas with relatively low wind speed, such as urban or residential areas

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