US 11,896,189 B2
Self-moving cleaning device
Chia-Chin Lin, Hsinchu County (TW); Chao-Kuo Yueh, Hsinchu County (TW); Wei-Bo Ding, Hsinchu County (TW); and Chun-Yao Chen, Hsinchu County (TW)
Assigned to HOBOT TECHNOLOGY INC., Hsinchu County (TW)
Filed by HOBOT TECHNOLOGY INC., Hsinchu County (TW)
Filed on Dec. 27, 2021, as Appl. No. 17/562,305.
Claims priority of application No. 202110830193.3 (CN), filed on Jul. 22, 2021.
Prior Publication US 2023/0028444 A1, Jan. 26, 2023
Int. Cl. A47L 9/04 (2006.01); A47L 9/14 (2006.01); A47L 9/28 (2006.01); A47L 11/40 (2006.01)
CPC A47L 9/0477 (2013.01) [A47L 9/1409 (2013.01); A47L 9/2842 (2013.01); A47L 9/2847 (2013.01); A47L 9/2852 (2013.01); A47L 11/4011 (2013.01); A47L 11/4058 (2013.01); A47L 11/4088 (2013.01); A47L 2201/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A self-moving cleaning device, comprising:
a base;
a mobile module adjacent to the base and configured to contact a surface when the self-moving cleaning device moves on the surface;
a vacuum module arranged over the base;
a dust box arranged over the base and connected to the vacuum module, the dust box comprising a first opening and a second opening, wherein the first opening is oriented in a first direction different from a second direction in which the second opening is oriented;
a first suction port arranged on the base and comprising a first suction inlet connected to the first opening, wherein the first suction port is free of any bristle or brush blade;
a second suction port arranged on the base and comprising a second suction inlet connected to the second opening, the first suction port disposed between a front side of the base and the second suction port;
a roller brush device arranged on the base and within the second suction port; and
an air duct, wherein the first suction port is connected to the dust box through the air duct to thereby connect the first suction inlet to the first opening,
wherein the dust box comprises:
a bottom surface, wherein the second opening is higher than the bottom surface by a first distance; and
a side wall arranged near the second opening to serve as a barrier wall to surround the second opening from an inside of the dust box so that the side wall and the bottom surface form a debris-accommodating space; and
the second suction inlet is adjacent to the first suction inlet, wherein a distance between the first suction inlet and the second suction inlet is equal to or less than 30 mm.