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:
Apr. 28, 2020
Filed:
Jul. 12, 2016
Lg Electronics Inc., Seoul, KR;
LG ELECTRONICS INC., Seoul, KR;
Abstract
A robot cleaner is disclosed. The robot cleaner includes a main body defining an outer appearance thereof, a suction device mounted inside the main body and including a suction motor and a suction fan, a suction port for sucking foreign substances from a floor upon operation of the suction device, a dust collection device for collecting foreign substances from air sucked through the suction port, one or more wheels for enabling the main body to travel autonomously, and a control unit for controlling the operation of the suction device and the wheels. The suction motor includes a stator and a rotor disposed around the stator and formed to be rotated with a rotating shaft. The rotor includes a first magnet for rotating the rotor around the stator, and a second magnet for preventing the rotating shaft of the suction motor from moving axially within a range of end play.