Negative pressure draught fan

The invention discloses a negative pressure draught fan comprising an outer shell, a motor, blades, a magnetic powder clutch and a transmission shaft. The motor and the blades are respectively placed at two ends inside the outer shell, and connected through the magnetic powder clutch and the transmi...

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Bibliographic Details
Main Author LV XUEBING
Format Patent
LanguageChinese
English
Published 15.05.2013
Subjects
BLASTING
BRAKES
CLUTCHES
COUPLINGS FOR TRANSMITTING ROTATION
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:The invention discloses a negative pressure draught fan comprising an outer shell, a motor, blades, a magnetic powder clutch and a transmission shaft. The motor and the blades are respectively placed at two ends inside the outer shell, and connected through the magnetic powder clutch and the transmission shaft. The motor drives the blades to rotate so that a negative pressure ventilation effect is achieved. When a blocking rotation of the blades occurs, the magnetic powder clutch can enable the motor to idle so that the motor can not be burnt out.
Bibliography:Application Number: CN20121536385