Negative-pressure fan

The invention provides a negative-pressure fan. The negative-pressure fan comprises an outer shell, a motor, fan blades and a transmission shaft, wherein the motor and the fan blades are respectively arranged at two ends in the outer shell and are connected through the transmission shaft. The fan bl...

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Bibliographic Details
Main Author LV XUEBING
Format Patent
LanguageChinese
English
Published 15.05.2013
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Summary:The invention provides a negative-pressure fan. The negative-pressure fan comprises an outer shell, a motor, fan blades and a transmission shaft, wherein the motor and the fan blades are respectively arranged at two ends in the outer shell and are connected through the transmission shaft. The fan blades are driven to rotate by the motor through the transmission shaft, and an effect of negative-pressure air exchange is achieved. A temperature sensor is arranged in the outer shell, and the temperature sensor is capable of sensing change of indoor temperature and is used with the cooperation of a transmission. The temperature sensor is capable of adjusting the revolving speed of the fan blades along with the change of the indoor temperature so as to reduce indoor temperature fluctuation.
Bibliography:Application Number: CN20121536398