Help me to generate a CAD product structure drawing, the specific structure is described as follows： The overall structure of the new household wind and solar complementary generator is a combination of the traditional household wind generator and umbrella structure, which is divided into double impeller, nacelle, yaw structure, flexible solar power generation panel, umbrella bone structure, telescopic column and internal control system. The overall structure of the generator can be divided into upper and lower parts, the upper part is based on the traditional wind turbine generator mechanism to add a set of impellers to form a double impeller structure, the double impellers will be connected through the shaft. The lower part is designed as an umbrella structure with a telescopic support column, which can make the top nacelle lift automatically. The umbrella bone structure is added to the middle and upper part of the telescopic column, and the flexible solar panel is added to the umbrella surface part.