Oil nozzle, volute assembly, centrifugal fan and range hood

• Main Authors: ZHANG YE, CUI FUHAO, HE FUTIAN, LI WEI, LIU HUACHUN, LI ZHONGHUA, BIAN LECHAO, WANG YAODONG
• Format: Patent
• Language: Chinese; English
• Published: 29.03.2022
• Subjects: BLASTING; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; OTHER DOMESTIC STOVES OR RANGES; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; RANGES; VENTILATING; WEAPONS

The invention discloses an oil nozzle, a volute assembly, a centrifugal fan and a range hood, the range hood comprises a volute, the volute is provided with an oil leakage hole, the oil nozzle is connected with the volute and is communicated with the volute through the oil leakage hole, the oil nozzle is further internally provided with an oil discharge channel communicated with the oil leakage hole, and the oil discharge channel is communicated with the volute through the oil leakage hole. The oil nozzle is further provided with a noise reduction cavity communicated with the oil discharge channel. According to the technical scheme, the noise in the operation process of the range hood is reduced. 本发明公开一种油嘴、蜗壳组件、离心风机和吸油烟机，其中，吸油烟机包括蜗壳，所述蜗壳具有漏油孔，所述油嘴与所述蜗壳连接，并通过所述漏油孔与所述蜗壳连通，所述油嘴内还设置有与所述漏油孔连通的排油通道，所述油嘴还设置有与所述排油通道连通的降噪腔。本发明技术方案降低了吸油烟机运行过程中的噪音。