US 12,497,969 B2
Blower
Akishige Umematsu, Nagano (JP); and Naomasa Yoshida, Nagano (JP)
Assigned to SHINANO KENSHI KABUSHIKI KAISHA, Nagano (JP)
Filed by SHINANO KENSHI KABUSHIKI KAISHA, Nagano (JP)
Filed on Jan. 24, 2024, as Appl. No. 18/421,360.
Claims priority of application No. 2023-028001 (JP), filed on Feb. 27, 2023.
Prior Publication US 2024/0287992 A1, Aug. 29, 2024
Int. Cl. F04D 13/06 (2006.01); F04D 29/28 (2006.01); F04D 29/42 (2006.01)
CPC F04D 13/0633 (2013.01) [F04D 29/281 (2013.01); F04D 29/4226 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A blower comprising an integral assembly of a fan casing accommodating an impeller and a motor casing accommodating a motor that drives the impeller to rotate, for suctioning air in an axial direction of the fan casing from a radially central portion of the fan casing and delivering the air to an annular air path provided radially outward,
wherein a rotor is assembled to one longitudinal end side of a motor shaft and the impeller is assembled to another longitudinal end side of the motor shaft, and a bearing rotatably supporting the motor shaft and a metal bearing holding portion holding the bearing are assembled, between the impeller and the motor, to the fan casing via an anti-vibration member,
a tip end side of a flange portion of the bearing holding portion extending radially outward to the annular air path, which is disposed radially outward about the motor shaft, forms part of the annular air path, and a gap is provided between the flange portion of the bearing holding portion facing the annular air path and the fan casing, and
wherein the anti-vibration member and the annular air path are axially between the flange portion and the motor.