Draught fan

• Main Authors: WANG YA, CAO XIAOJIN, GUO WENGUANG
• Format: Patent
• Language: Chinese; English
• Published: 15.05.2018
• 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 utility model discloses a have hall assembly's draught fan, detection draught fan's that can fast and stable rotation to can be with quick start draught fan, the negative pressure that forms the combustion chamber is poor. The utility model provides a draught fan, including draught fan, motor, the motor setting be in draught fan's left side, the motor include front end housing, magnet steel, first bearing cover, first bearing, stator core, rotor subassembly, winding, packing ring, second bearing, second bearing cover, packing ring, rear end cap, fan, draught fan include spiral case, wind wheel, can through hall element detect draught fan whether rotate with quick start -up draught fan's function to it is poor to form the wall -hanging negative pressure of adopting the combustion chamber in the warm hydrophone fast of gas, and have simple structure, have hall rotational speed test, the noise is low, can be in adverse circumstances the reliability service, characteristics such as long service life. 本实用新型公开了