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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 11725330 B1

PDFFull Text
Date of Patent:
Aug. 15, 2023

Filed:

Sep. 02, 2021

Washing machine and control method of washing machine

Applicant:

Lg Electronics Inc., Seoul, KR;

Inventors:

Beomjun Kim, Seoul, KR;

Woore Kim, Seoul, KR;

Sangwook Hong, Seoul, KR;

Assignee:

LG Electronics Inc., Seoul, KR;

Attorney:

Fish & Richardson P.C.

Primary Examiner:

Benjamin L Osterhout

Int. Cl.
CPC ...
D06F 39/04 (2006.01); D06F 34/28 (2020.01); D06F 34/08 (2020.01); D06F 33/00 (2020.01); D06F 25/00 (2006.01); D06F 58/26 (2006.01); D06F 37/42 (2006.01); D06F 58/50 (2020.01); D06F 105/28 (2020.01); D06F 103/32 (2020.01); D06F 33/74 (2020.01); D06F 34/26 (2020.01); D06F 33/47 (2020.01); D06F 58/30 (2020.01); D06F 34/24 (2020.01);
U.S. Cl.
CPC ...
D06F 39/04 (2013.01); D06F 33/00 (2013.01); D06F 34/08 (2020.02); D06F 34/28 (2020.02); D06F 25/00 (2013.01); D06F 33/47 (2020.02); D06F 33/74 (2020.02); D06F 34/24 (2020.02); D06F 34/26 (2020.02); D06F 37/42 (2013.01); D06F 58/26 (2013.01); D06F 58/30 (2020.02); D06F 58/50 (2020.02); D06F 2103/32 (2020.02); D06F 2105/28 (2020.02);
Abstract

A washing machine includes: a tub; a drum; an induction heater disposed in a position spaced apart from the drum and configured to heat the drum; an input power source; a relay configured to interrupt a current applied to the coil of the induction heater from the input power source; a first processor configured to control the relay; and a safety device connected to a circuit connecting the first processor and the relay. The safety device includes: a first thermostat configured to operate according to a temperature of a first air between the drum and the tub, and open the circuit when the temperature of the first air is a first safety control temperature; and a thermal fuse configured to operate according to a temperature of a second air outside the tub, and open the circuit when the temperature of the second air is a second safety control temperature.

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