Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fan blade mechanism for garden blower and garden blower
The invention discloses a fan blade mechanism for a garden blower and the garden blower, and relates to the field of garden tools. The fan blade mechanism comprises a hub part and fan blades, wherein the hub part can rotate around a rotating shaft; the fan blades are arranged on the hub part; each fan blade is provided with a leeward side, a windward side, a front edge, a rear edge and a top edge; each leeward side and the corresponding windward side are opposite; each front edge and the corresponding rear edge are opposite to each other; each front edge is located in the air incoming flow direction; each rear edge is located in the air flowing direction relative to the corresponding front edge; each top edge is located at the end away from the hub part; a first transition part of a curved surface which is close to the hub part from each top edge is arranged at the joint of each top edge and the corresponding front edge; the cross section of each first transition part is in an arc shape; and the radius length of the arc-shape of each first transition part ranges from 0.5 mm to 5 mm. According to the fan blade mechanism for the garden blower and the garden blower provided by the invention, noise generated when airflow is separated from vortex can be effectively reduced.
本发明公开了一种用于园林吹风机的风叶机构和园林吹风机，其涉及园林工具领域，所述风叶机构包括：轮毂部，其能绕旋转轴旋转；扇叶，其设置在所述轮毂部上，所述扇叶具有相对的背风面和迎风面、相对的位于气体来流方向的前边缘和相对所述前边缘位于气体流向方向的后边缘、以及位于远离所述轮毂部一端的顶缘，所述顶缘与所述前边缘的交接处具有呈由所述顶缘向所述轮毂部靠拢的曲面的第一过渡部，所述第一过渡部的横截面呈圆弧状，所述第一过渡部呈圆弧状的半径长度范围在0.5mm至5mm之间。本申请能够有效降低气流脱离涡流时的噪声。
Fan blade mechanism for garden blower and garden blower
The invention discloses a fan blade mechanism for a garden blower and the garden blower, and relates to the field of garden tools. The fan blade mechanism comprises a hub part and fan blades, wherein the hub part can rotate around a rotating shaft; the fan blades are arranged on the hub part; each fan blade is provided with a leeward side, a windward side, a front edge, a rear edge and a top edge; each leeward side and the corresponding windward side are opposite; each front edge and the corresponding rear edge are opposite to each other; each front edge is located in the air incoming flow direction; each rear edge is located in the air flowing direction relative to the corresponding front edge; each top edge is located at the end away from the hub part; a first transition part of a curved surface which is close to the hub part from each top edge is arranged at the joint of each top edge and the corresponding front edge; the cross section of each first transition part is in an arc shape; and the radius length of the arc-shape of each first transition part ranges from 0.5 mm to 5 mm. According to the fan blade mechanism for the garden blower and the garden blower provided by the invention, noise generated when airflow is separated from vortex can be effectively reduced.
本发明公开了一种用于园林吹风机的风叶机构和园林吹风机，其涉及园林工具领域，所述风叶机构包括：轮毂部，其能绕旋转轴旋转；扇叶，其设置在所述轮毂部上，所述扇叶具有相对的背风面和迎风面、相对的位于气体来流方向的前边缘和相对所述前边缘位于气体流向方向的后边缘、以及位于远离所述轮毂部一端的顶缘，所述顶缘与所述前边缘的交接处具有呈由所述顶缘向所述轮毂部靠拢的曲面的第一过渡部，所述第一过渡部的横截面呈圆弧状，所述第一过渡部呈圆弧状的半径长度范围在0.5mm至5mm之间。本申请能够有效降低气流脱离涡流时的噪声。
Fan blade mechanism for garden blower and garden blower
用于园林吹风机的风叶机构和园林吹风机
LIU ZHENGWEI (Autor:in) / JIANG WENWEN (Autor:in) / XIAO HAIBO (Autor:in) / JIAO SHIPING (Autor:in) / YANG QINGHUI (Autor:in)
03.12.2021
Patent
Elektronische Ressource
Chinesisch