US 11,700,980 B2
Electric blower, vacuum cleaner, and hand drying device
Kazuchika Tsuchida, Tokyo (JP); and Naho Adachi, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 16/486,891
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Apr. 19, 2017, PCT No. PCT/JP2017/015655
§ 371(c)(1), (2) Date Aug. 19, 2019,
PCT Pub. No. WO2018/193530, PCT Pub. Date Oct. 25, 2018.
Prior Publication US 2020/0229660 A1, Jul. 23, 2020
Int. Cl. A47K 10/48 (2006.01); A47L 5/22 (2006.01); F04D 25/08 (2006.01); F04D 29/056 (2006.01); F04D 29/28 (2006.01); F04D 29/44 (2006.01); F04D 29/58 (2006.01)
CPC A47K 10/48 (2013.01) [A47L 5/22 (2013.01); F04D 25/08 (2013.01); F04D 29/056 (2013.01); F04D 29/281 (2013.01); F04D 29/444 (2013.01); F04D 29/5806 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An electric blower comprising:
a motor;
a first rotor blade provided on one end side of the motor in an axial direction;
a second rotor blade provided on another side of the motor opposite to the first rotor blade in the axial direction;
a casing covering the first rotor blade and the second rotor blade and including a first radial outlet formed to face the motor and a second radial outlet formed to face the motor;
a first stator blade provided to face the first rotor blade; and
a second stator blade provided to face the second rotor blade,
wherein the first stator blade includes:
a first main plate having a first surface and a second surface that is a surface on a side opposite to the first surface; and
a plurality of vanes formed on the first surface and arranged to regulate an air current generated by rotation of the first rotor blade,
wherein the plurality of vanes are arranged in a radial pattern around a rotation center of the first rotor blade,
wherein the first rotor blade is a first mixed flow fan, and the second rotor blade is a second mixed flow fan,
wherein the first radial outlet and the second radial outlet are separated from each other by the motor and a motor frame surrounding the motor.