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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.:

US 11613837 B1

PDFFull Text
Date of Patent:
Mar. 28, 2023

Filed:

Jan. 24, 2020

Driving device for washing machine

Applicant:

Lg Electronics Inc., Seoul, KR;

Inventors:

Hyoung Uk Nam, Seoul, KR;

Hyojin Ko, Seoul, KR;

Jin Hong, Seoul, KR;

Assignee:

LG Electronics Inc., Seoul, KR;

Attorney:

Fish & Richardson P.C.

Primary Examiner:

Joseph L Perrin

Assistant Examiner:

Kevin G Lee

Int. Cl.
CPC ...
D06F 37/30 (2020.01); D06F 37/36 (2006.01); D06F 37/40 (2006.01); H02K 29/08 (2006.01); D06F 105/48 (2020.01); D06F 33/36 (2020.01); D06F 33/40 (2020.01); D06F 23/00 (2006.01); F16D 28/00 (2006.01); H02K 7/108 (2006.01); H02K 49/10 (2006.01);
U.S. Cl.
CPC ...
D06F 37/304 (2013.01); D06F 37/36 (2013.01); D06F 37/40 (2013.01); H02K 29/08 (2013.01); D06F 23/00 (2013.01); D06F 33/36 (2020.02); D06F 33/40 (2020.02); D06F 2105/48 (2020.02); F16D 28/00 (2013.01); H02K 7/1085 (2013.01); H02K 49/102 (2013.01);
Abstract

A driving device for a washing machine includes: a shaft including an inner shaft and an outer shaft surrounding the inner shaft; a motor assembly including a stator, a rotor that surrounds the stator, a modulator that surrounds the rotor, and a magnetic gear rotating body that surrounds the modulator; a first fixation body that connects between the inner shaft and the magnetic gear rotating body; a second fixation body having one end connected to the stator and the other end connected to a tub; and an electronic clutch that disconnects the outer shat and the rotor or connects the inner shaft and the rotor according to an operation mode of the washing machine. The modulator adjusts a speed and torque of the magnetic gear rotating body. The driving device may make a motor drive area highly efficient and may reduce electric consumption.

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