The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2025
Filed:
Dec. 14, 2022
Samsung Electronics Co., Ltd., Suwon-si, KR;
Yeonje Kim, Suwon-si, KR;
Dongbum Lee, Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
A washing machine includes a main body, a tub inside the main body, a drum configured to be rotated inside the tub, and a drive device configured to rotationally drive the drum. The drive device includes a drum shaft connected to the drum, a motor including a stator and a rotor configured to be rotated by an interaction with the stator, a sun gear connected to the rotor, a carrier connected to the drum shaft, a planetary gear configured to transmit a rotational force of the sun gear to the carrier, and a cooling flow path formed therein and through which air is introduced and discharged to cool the planetary gear. The cooling flow path includes a first cooling hole formed in the sun gear to allow outside air to be introduced, and a second cooling hole formed in the rotor to allow inside air to be discharged.