Patent ID: 11286946

Abstract:
A wind wheel including a plurality of blades and a hub. The plurality of blades each includes an inner edge, an outer edge, a leading edge, and a trailing edge. In a top view of the orthographic projection of the wind wheel, the maximum distance between the center O of the hub and the outer edge of the plurality of blades refers to the outer diameter R; the distance between the center O and the cross point A1 of the inner edge and the leading edge is named R1; the outer edge is connected to the leading edge via an arc; the distance between the center O and a joint A2 of the arc and the leading edge is named R2; and the distances R1, R2, and the outer diameter R satisfy the following conditions: 0.35R≤R1≤0.45R; 0.8R≤R2≤0.9R.