US 12,274,405 B2
Cleaning robot and control method therefor
Fujian Xiao, Beijing (CN); Haojian Xie, Beijing (CN); and Qi Wu, Beijing (CN)
Assigned to BEIJING ROBOROCK TECHNOLOGY CO., LTD., Beijing (CN)
Appl. No. 17/640,325
Filed by BEIJING ROBOROCK INNOVATION TECHNOLOGY CO., LTD., Beijing (CN)
PCT Filed Aug. 28, 2020, PCT No. PCT/CN2020/112086
§ 371(c)(1), (2) Date Mar. 3, 2022,
PCT Pub. No. WO2021/043080, PCT Pub. Date Mar. 11, 2021.
Claims priority of application No. 201910838307.1 (CN), filed on Sep. 5, 2019.
Prior Publication US 2022/0338700 A1, Oct. 27, 2022
Int. Cl. A47L 11/40 (2006.01); A47L 11/24 (2006.01)
CPC A47L 11/4011 (2013.01) [A47L 11/24 (2013.01); A47L 2201/022 (2013.01); A47L 2201/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A cleaning robot, comprising:
a chassis;
a drive system, comprising an offset drop-type suspension system, wherein the offset drop-type suspension system is movably fastened to the chassis and receives a spring bias downward and away from the chassis, and the spring bias is configured to keep a drive wheel in contact with a ground with a grounding force;
an energy storage unit, supported by the chassis and comprising at least one charging contact sheet, wherein the charging contact sheet protrudes from a plane of the chassis slightly, and the energy storage unit is configured to be charged according to a predetermined amount in a case that the robot is located at a charging station; and
a control system, disposed on a main circuit board inside the cleaning robot and comprising a non-transitory memory and a processor, wherein the control system is configured to control the energy storage unit to be charged according to the predetermined amount based on a to-be-cleaned area and a total power consumption factor,
wherein the cleaning robot further comprises:
a navigation apparatus, configured to monitor a cleaned area in real time and report the cleaned area to the control system which obtains a to-be-cleaned area according to the cleaned area.