Impeller of centrifugal fan and centrifugal fan

• Main Authors: MA LIHUA, WEI FUQUAN, LI YUEFEI
• Format: Patent
• Language: Chinese; English
• Published: 14.08.2013
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The utility model discloses an impeller of a centrifugal fan and the centrifugal fan. The impeller comprises an impeller ring, an impeller disk and a plurality of blades. The impeller ring is annular and has a first outer diameter D1 and a first inner diameter D2. The impeller disk is arranged on one side of the impeller ring and coaxial with the impeller ring, and has a second outer diameter D3, wherein the second outer diameter D3 is smaller than or equal to the first inner diameter D2. The plurality of the blades are circumferentially arranged along the impeller ring at intervals and located between the impeller ring and the impeller disk. The blades have an air inlet diameter D4, wherein the second outer diameter D3 is larger than the air inlet diameter D4, and the impeller ring, the impeller disc and the plurality of the blades are integrally formed. According to the impeller of the centrifugal fan and the centrifugal fan, the blades are convenient to manufacture, the production efficiency is high, the s