US 12,483,079 B2
Motor assembly and cleaner including same
Jihoon Han, Suwon-si (KR); Wonsoo Kang, Suwon-si (KR); Younmo Kang, Suwon-si (KR); Jimin Kim, Suwon-si (KR); Taesang Park, Suwon-si (KR); Jinwoo Han, Suwon-si (KR); and Woong Hwang, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Dec. 28, 2022, as Appl. No. 18/090,045.
Application 18/090,045 is a continuation of application No. PCT/KR2021/007633, filed on Jun. 17, 2021.
Claims priority of application No. 10-2020-0093357 (KR), filed on Jul. 27, 2020.
Prior Publication US 2023/0140359 A1, May 4, 2023
Int. Cl. H02K 1/27 (2022.01); A47L 5/22 (2006.01); H02K 7/14 (2006.01)
CPC H02K 1/27 (2013.01) [A47L 5/22 (2013.01); H02K 7/14 (2013.01); H02K 2213/03 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A motor assembly comprising:
a rotor rotatable about a rotating shaft;
a stator formed as one continuous body, and including
a plurality of teeth areas,
a plurality of body areas disposed outside the plurality of teeth areas and having a first width in a cross section of the stator in a direction perpendicular to a rotational axis of the rotating shaft, with the plurality of teeth areas extending from the plurality of body areas in a direction toward the rotating shaft, and
a plurality of connection areas connecting the plurality of body areas with each other; and
a coil wound on each of the plurality of teeth areas,
wherein each of the plurality of connection areas includes a bending point having a second width in the cross section of the stator in the direction perpendicular to the rotational axis of the rotating shaft of greater than or equal to 0.075 and less than or equal to 0.25 of the first width such that the motor assembly is configured to have a natural frequency of less than or equal to 1824 Hz.