Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Air blower and air pipe mechanism
The invention relates to an air blower and an air pipe mechanism. The air blower comprises a shell with an air inlet, a motor arranged in the shell, a fan which is driven by the motor to rotate so as to enable main airflow to enter from the air inlet, and an air pipe mechanism which is provided with an air outlet to blowing out the airflow and comprises a first air pipe connected with the shell and a second air pipe connected with the first air pipe. In at least one position where the second air pipe is connected with the first air pipe, a gap is formed between the first air pipe and the second air pipe to supplement airflow. The air blower is characterized in that the air outlet is formed in the second air pipe; the second air pipe further comprises a supporting ring used for being connected with the first air pipe in a sleeved mode and supporting ribs connected with the supporting ring and the second air pipe, and supplementary airflow flows into main airflow from the space between the supporting ribs. The number of the supporting ribs is at least four, or the arc length of the portion, between every two adjacent supporting ribs, of the second air pipe is smaller than or equal to 70 mm. Noise can be restrained when the air blower is in an air volume mode, so that the use feeling of a user is improved, and rapidness and convenience are achieved.
本申请涉及一种吹风机及风管机构，包括具有进风口的壳体；马达，设置在壳体内；风扇，由马达驱动旋转以使得主气流自进风口进入；风管机构，具有出风口，气流从出风口吹出；风管机构包括与壳体连接的第一风管及与第一风管连接的第二风管；第二风管与第一风管连接的至少一个位置上，第一风管和第二风管具有间隙，以补充气流；其特征在于，出风口设置在第二风管上；第二风管还包括用于与第一风管套接的支撑环、及连接支撑环和第二风管的支撑筋，补充气流自支撑筋之间流入主气流；支撑筋的数量为至少四根，或者，每相邻两根支撑筋之间的第二风管的弧长小于等于70mm。其使得吹风机处于风量模式时能够抑制噪音，从而提高用户使用感受，快捷方便。
Air blower and air pipe mechanism
The invention relates to an air blower and an air pipe mechanism. The air blower comprises a shell with an air inlet, a motor arranged in the shell, a fan which is driven by the motor to rotate so as to enable main airflow to enter from the air inlet, and an air pipe mechanism which is provided with an air outlet to blowing out the airflow and comprises a first air pipe connected with the shell and a second air pipe connected with the first air pipe. In at least one position where the second air pipe is connected with the first air pipe, a gap is formed between the first air pipe and the second air pipe to supplement airflow. The air blower is characterized in that the air outlet is formed in the second air pipe; the second air pipe further comprises a supporting ring used for being connected with the first air pipe in a sleeved mode and supporting ribs connected with the supporting ring and the second air pipe, and supplementary airflow flows into main airflow from the space between the supporting ribs. The number of the supporting ribs is at least four, or the arc length of the portion, between every two adjacent supporting ribs, of the second air pipe is smaller than or equal to 70 mm. Noise can be restrained when the air blower is in an air volume mode, so that the use feeling of a user is improved, and rapidness and convenience are achieved.
本申请涉及一种吹风机及风管机构，包括具有进风口的壳体；马达，设置在壳体内；风扇，由马达驱动旋转以使得主气流自进风口进入；风管机构，具有出风口，气流从出风口吹出；风管机构包括与壳体连接的第一风管及与第一风管连接的第二风管；第二风管与第一风管连接的至少一个位置上，第一风管和第二风管具有间隙，以补充气流；其特征在于，出风口设置在第二风管上；第二风管还包括用于与第一风管套接的支撑环、及连接支撑环和第二风管的支撑筋，补充气流自支撑筋之间流入主气流；支撑筋的数量为至少四根，或者，每相邻两根支撑筋之间的第二风管的弧长小于等于70mm。其使得吹风机处于风量模式时能够抑制噪音，从而提高用户使用感受，快捷方便。
Air blower and air pipe mechanism
吹风机及风管机构
YANG QINGHUI (Autor:in) / YU XUEFENG (Autor:in) / CHANG FANGYUAN (Autor:in)
03.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01H
STREET CLEANING
,
Reinigen von Straßen
Fan blade mechanism for garden blower and garden blower
| Europäisches Patentamt | 2021