Fan motor assembly with noise suppression

Details Fan motor assembly with noise suppression Fan motor assembly with noise suppression

H - Electricity

02

K

H02K 9/04 (2006.01) F04B 39/00 (2006.01) F04B 53/00 (2006.01) F04D 25/06 (2006.01) F04D 29/44 (2006.01) F04D 29/66 (2006.01) F24F 7/00 (2006.01) H02K 5/24 (2006.01) H02K 9/06 (2006.01)

Patent

CA 2489496

A low-noise air moving motor assembly includes a motor assembly having a rotatable shaft, a fan assembly coupled to the rotatable shaft which generates an airflow that passes over at least a portion of the motor assembly. A self extinguishing flame and noise suppression sleeve is at least partially disposed around the motor assembly. Ideally, the sleeve is a 94 V-0 rated foam material. The fan assembly includes a fan secured to the shaft, a diffuser/bracket assembly coupled to the motor assembly which rotatably receives the shaft. A fan shroud is secured to the diffuser/bracket assembly, wherein rotation of the fan draws air in through the fan shroud and out the diffuser/bracket assembly, the diffuser/bracket assembly having at least one foam piece coupled to curvilinear vanes reduce the noise of air flowing therethrough.

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