Low-vibration ventilation fan

The invention relates to a low-vibration ventilation fan comprising a volute, an impeller and a drive motor. A volute flange is fixed on the volute; the volute flange is provided with an outer ring fixed with the volute and an inner ring fixedly connected with a motor flange of a shaft end of a driv...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHEN YUNHUA, WU YONGQUAN, SHEN JIN, XIE FENG, YE ZHOUTAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	The invention relates to a low-vibration ventilation fan comprising a volute, an impeller and a drive motor. A volute flange is fixed on the volute; the volute flange is provided with an outer ring fixed with the volute and an inner ring fixedly connected with a motor flange of a shaft end of a drive motor; the inner ring and the outer ring of the volute flange are fixedly connected; and a connecting piece is a vibration-attenuating ring arranged between the inner ring and the outer ring of the volute flange. The low-vibration ventilation fan has the advantages of obvious effect, low noise vibration, small volume, simple structure and convenient maintenance, and solves the problems of vibration attenuation and noise reduction from the prorogation path of the vibration.