Air flow generation device, dust collector, hand dryer, hair dryer and blower

• Main Authors: PAN GUANGYE, LI YUE, ZHANG TAO, ZHOU CHUIYOU, CHAI JIE, ZHOU QIANG, LI WENLIANG, GUI LINPING
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2017
• Subjects: BLASTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The invention provides an air flow generation device, a duct collector, a hand dryer, a hair dryer and a blower. The air flow generation device comprises a single-phase direct-current brushless motor and an impeller driven by the single-phase brushless motor. The single-phase direct-current brushless motor comprises a stator and a rotor capable of rotating relative to the stator. The stator comprises a stator magnetic core and stator windings wound on the stator magnetic core. The stator magnetic core comprises an outer ring part, multiple wire wrapping parts inwards stretching out from the outer ring part and pole shoes arranged on the ends of the wire wrapping parts. A slot opening is formed between pole shoes between every adjacent wire wrapping parts. The windings are wound on the corresponding wire wrapping parts. The rotator is stored in a storage cavity formed by the pole shoes. Largely uniform air gaps are formed between permanent magnet poles of the rotor and the inner surfaces of the pole shoes of t