US 12,066,207 B2
Blower and with controller controlling a motor
Akihiro Nakano, Osaka (JP); and Yoshinori Takayama, Osaka (JP)
Assigned to Daikin Industries, Ltd., Osaka (JP)
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed on Oct. 27, 2023, as Appl. No. 18/384,478.
Application 18/384,478 is a continuation of application No. PCT/JP2022/019131, filed on Apr. 27, 2022.
Claims priority of application No. 2021-076883 (JP), filed on Apr. 28, 2021.
Prior Publication US 2024/0053048 A1, Feb. 15, 2024
Int. Cl. F24F 11/77 (2018.01); F24F 1/0018 (2019.01); F24F 11/74 (2018.01); F24F 110/10 (2018.01)
CPC F24F 11/77 (2018.01) [F24F 1/0018 (2013.01); F24F 11/74 (2018.01); F24F 2110/10 (2018.01)] 20 Claims
OG exemplary drawing
 
1. A blower comprising:
a motor with variable rotational speed, having a shaft that is supported by a bearing with a lubricant sealed inside; and
a first controller that rotationally drives the motor,
wherein
the first controller executes a first control to decrease the rotational speed of the motor when a first temperature (T1) decreases during operation in which the motor is rotated in a predetermined low rotational speed range, the first temperature (T1) being a measured or calculated temperature of the bearing.