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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 11859330 B1

PDFFull Text
Date of Patent:
Jan. 02, 2024

Filed:

Jul. 05, 2019

Drain pump driving apparatus and laundry treatment machine including the same

Applicant:

Lg Electronics Inc., Seoul, KR;

Inventors:

Jeongbin Rew, Seoul, KR;

Junho Lee, Seoul, KR;

Chungill Lee, Seoul, KR;

Assignee:

LG ELECTRONICS INC., Seoul, KR;

Attorney:

KED & Associates LLP

Primary Examiner:

Jason Y Ko

Int. Cl.
CPC ...
D06F 34/10 (2020.01); D06F 37/30 (2020.01); D06F 33/42 (2020.01); D06F 23/04 (2006.01); D06F 39/08 (2006.01); F04D 13/06 (2006.01); F04D 15/00 (2006.01); H02P 27/08 (2006.01); H03F 3/45 (2006.01); D06F 105/46 (2020.01); D06F 105/08 (2020.01);
U.S. Cl.
CPC ...
D06F 34/10 (2020.02); D06F 23/04 (2013.01); D06F 33/42 (2020.02); D06F 37/30 (2013.01); D06F 37/304 (2013.01); D06F 39/085 (2013.01); F04D 13/06 (2013.01); F04D 15/0066 (2013.01); H02P 27/08 (2013.01); H03F 3/45475 (2013.01); D06F 2105/08 (2020.02); D06F 2105/46 (2020.02);
Abstract

The present disclosure relates to a drain pump driving apparatus and a laundry treatment machine including the same. A drain pump driving apparatus according to an embodiment of the present disclosure includes: a converter; a voltage dropper to drop the DC voltage from the converter; an inverter module to operate based on a first voltage from the voltage dropper and to output AC voltage converted by a switching operation to a drain pump motor; a controller to operate based on a second voltage from the voltage dropper and to control the inverter module; and a voltage adjuster to adjust the level of voltage information of the motor outputted from the inverter module and to output the adjusted voltage information to the controller. Accordingly, it is possible to stably drive the drain motor.

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