Fan motor

Rotary kinetic fluid motors or pumps – Including additional means causing or controlling fluid flow...

Reexamination Certificate

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Details

C415S177000, C415S220000

Reexamination Certificate

active

08057167

ABSTRACT:
The present invention provides a fan motor capable of achieving both an improvement in a self cooling function of the fan motor and a reduction in fan noise, and of preventing the occurrence of heat damage, problems, and the like caused by external radiation heat and by self-heating, fan noise, and deterioration in fan performance and in fan efficiency. The fan motor (1) includes: a shroud (2); a motor (3) secured to and supported at the shroud (2); an axial-flow fan (4) connected to a rotation shaft part of the motor (3); and a heat shield panel (5) mounted at the rear side of the motor (3) with a gap being provided therebetween, in which the heat shield panel (5) has a spatula-shaped air guiding part (52) projecting outward in a radial direction at least one location on an outer circumference portion; and the air guiding part (52) has a width gradually reducing toward an outer side and a fan-rotational-direction leading edge part (53) having an arc shape.

REFERENCES:
patent: 5180279 (1993-01-01), McLane-Goetz et al.
patent: 7478992 (2009-01-01), Hsu et al.
patent: 2006/0147322 (2006-07-01), Lee
patent: 2007/0031250 (2007-02-01), Suzuki et al.
patent: 2008/0075585 (2008-03-01), Acre
patent: 2011/0008170 (2011-01-01), Suzuki et al.
patent: 62-799 (1987-01-01), None
patent: 4-103298 (1992-09-01), None
patent: 2003-166498 (2003-06-01), None
patent: 2007-040200 (2007-02-01), None
patent: 2007-247603 (2007-09-01), None
International Search Report Issued Oct. 14, 2008 in Corresponding International Application No. PCT/JP2008/066718.

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