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.

Date of Patent:
Jul. 21, 2026

Filed:

Nov. 27, 2023
Applicant:

Qfeeltech (Beijing) Co., Ltd., Beijing, CN;

Inventors:

Zhanglin Liu, Beijing, CN;

Wulin Tian, Beijing, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 11/40 (2006.01); A47L 11/24 (2006.01);
U.S. Cl.
CPC ...
A47L 11/4005 (2013.01); A47L 11/24 (2013.01); A47L 2201/022 (2013.01); A47L 2201/04 (2013.01);
Abstract

A recharging method for a cleaning robot is provided. The recharging method includes: determining a direction of a charging base; controlling the cleaning robot to move in a first direction toward the direction of the charging base; detecting, in real time, a distance between the cleaning robot and the charging base; determining whether the cleaning robot has arrived at a target location based on the distance, the target location being at a second distance in front of the charging base; controlling the cleaning robot to rotate for a predetermined angle when the cleaning robot arrives at the target location; controlling the cleaning robot to move backwardly to approach the charging base and to touch the charging base; controlling the cleaning robot to move forwardly for a first distance, and then to move backwardly to approach the charging base and to dock with the charging base to perform battery charging.


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