# US 2025/0082166 A1 · Automatic cleaning device and system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0082166 A1 - Document ID: US20250082166A1 - Status: Published application - Kind: A1 - Application number: 18/728,095 - Filed: 2022-08-08 - Published: 2025-03-13 - Earliest claimed: 2022-01-11 - Assignees: Beijing Roborock Technology Co., Ltd. - Applicants: Beijing Roborock Technology Co., Ltd. - Inventors: Haibin LI; Zhibin ZHANG - Web page: https://patentgrep.com/patent/US20250082166A1 ## CPC - A47L 9/1409: {Rigid filtering receptacles (dust collecting receptacles for cyclones A47L9/1683)} - A47L 11/4036: {Parts or details of the surface treating tools} - A47L 9/122: {flat} - A47L 9/1463: {specially adapted for rigid filtering receptacles} - A47L 9/2873: {Docking units or charging stations (for autonomous or robotic vacuum cleaners A47L2201/02)} - A47L 11/24: Floor-sweeping machines, motor-driven - A47L 11/4013: {Contaminants collecting devices, i.e. hoppers, tanks or the like} - A47L 11/4091: {Storing or parking devices, arrangements therefor; Means allowing transport of the machine when it is not being used} - A47L 2201/00: Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation - A47L 2201/024: Emptying dust or waste liquid containers - A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08) ## Abstract An automatic cleaning device, configured with a dust collection function, and including: a moving platform, comprising an accommodating chamber, wherein the moving platform is configured to automatically move on an operating surface; and a cleaning module, comprising a dust box and a main brush module, wherein the dust box is detachably mounted in the accommodating chamber, and the dust box comprises a first side wall and a second side wall that are provided opposite to each other; where the accommodating chamber further comprises a third side wall provided corresponding to the first side wall of the dust box, and a fourth side wall provided corresponding to the second side wall of the dust box, wherein the third side wall and the fourth side wall respectively comprise a plurality of air inlet holes, and the plurality of air inlet holes are configured to provide intake airflows to the dust box from two directions during a dust collection process. ## Claims ### Claim 1 An automatic cleaning device, configured with a dust collection function, and comprising: a moving platform, comprising an accommodating chamber, wherein the moving platform is configured to automatically move on an operating surface; and a cleaning module, comprising a dust box and a main brush module, wherein the dust box is detachably mounted in the accommodating chamber, and the dust box comprises a first side wall and a second side wall that are provided opposite to each other; wherein the accommodating chamber further comprises a third side wall provided corresponding to the first side wall of the dust box, and a fourth side wall provided corresponding to the second side wall of the dust box, wherein the third side wall and the fourth side wall respectively comprise a plurality of air inlet holes, and the plurality of air inlet holes are configured to provide intake airflows to the dust box from two directions during a dust collection process. ### Claim 2 (depends on 1) The automatic cleaning device according to claim 1, wherein a source of the intake airflows comprises at least one of: an airflow entering from a top gap of the moving platform, an airflow entering from a gap of the main brush module, or an airflow entering from a rear side wall of the moving platform. ### Claim 3 An automatic cleaning device, configured with a dust collection function, and comprising: a moving platform, comprising an accommodating chamber, wherein the moving platform is configured to automatically move on an operating surface; and a cleaning module, comprising a dust box and a main brush module, wherein the dust box is detachably mounted in the accommodating chamber, and the dust box comprises a first side wall and a second side wall that are provided opposite to each other; wherein the accommodating chamber further comprises a third side wall provided corresponding to the first side wall of the dust box, and a fourth side wall provided corresponding to the second side wall of the dust box, and at least one of the third side wall or the fourth side wall comprises a plurality of air inlet holes, and the plurality of air inlet holes are configured to provide intake airflows into the dust box during a dust collection process; and a source of the intake airflows comprises at least one of: an airflow entering from a top gap of the moving platform, an airflow entering from a gap of the main brush module, or an airflow entering from a rear side wall of the moving platform. ### Claim 4 (depends on 3) The automatic cleaning device according to claim 3, wherein the airflow entering from the top gap of the moving platform comprises at least one of an airflow entering from a gap between a protecting cover and a top surface of the moving platform, or an airflow entering from a gap between the protecting cover and a position determination apparatus. ### Claim 5 (depends on 3) The automatic cleaning device according to claim 3, wherein the airflow entering from the gap of the main brush module comprises an airflow entering from a gap between a main brush and a lower shell, and then passing through an opening around a main brush drive motor to a front wall of the accommodating chamber. ### Claim 6 (depends on 3) The automatic cleaning device according to claim 3, wherein the airflow entering from the rear side wall of the moving platform comprises an airflow passing thorough air inlet notches of baffles on two sides of a fan bracket to a side surface of the accommodating chamber after entering interior of a shell of the moving platform from an exhaust port. ### Claim 7 (depends on 6) The automatic cleaning device according to claim 6, wherein the airflow entering from the rear side wall of the moving platform comprises an airflow entering directly from the exhaust port to a side surface of the accommodating chamber. ### Claim 8 (depends on 3) The automatic cleaning device according to claim 3, wherein at least one of the third side wall or the fourth side wall respectively comprises a plurality of spacers on outer sides, and the plurality of spacers form a plurality of air paths. ### Claim 9 (depends on 3) The automatic cleaning device according to claim 3, wherein a front side wall of the accommodating chamber respectively comprises an air passage on an upper outer side, and at least one of the airflow entering from the top gap of the moving platform or the airflow entering from the gap of the main brush module passes through the air passage to the plurality of air inlet holes. ### Claim 10 (depends on 3) The automatic cleaning device according to claim 3, wherein the accommodating chamber comprises a first chamber and a second chamber that are provided adjacent to each other in sequence in a forward direction of the automatic cleaning device, a dust suction port is provided at a bottom of a front side wall of the first chamber, an air outlet is provided on a rear side wall at a connection between the first chamber and the second chamber, the dust box further comprises a first opening and a second opening, and the dust suction port, the air outlet, the first opening and the second opening are all substantially located on a central axis in a front-to-back direction of the automatic cleaning device. ### Claim 11 (depends on 3) The automatic cleaning device according to claim 3, wherein the dust box comprises a first air inlet door and a second air inlet door, the first air inlet door and the second air inlet door are respectively located on the first side wall and the second side wall of the dust box, and wherein the plurality of air inlet holes cover at least a portion of the first air inlet door and the second air inlet door. ### Claim 12 (depends on 11) The automatic cleaning device according to claim 11, wherein the first air inlet door and the second air inlet door are located at asymmetric positions of the first side wall and the second side wall respectively, to increase swirl speed of an airflow after entering the dust box. ### Claim 13 (depends on 1) An automatic cleaning system, comprising: a dust collection station and the automatic cleaning device according to claim 1, wherein the dust collection station comprises a dust collection port, and the dust collection port is docked with a port of the main brush module for dust collection. ### Claim 14 (depends on 2) The automatic cleaning device according to claim 2, wherein the airflow entering from the top gap of the moving platform comprises at least one of an airflow entering from a gap between a protecting cover and a top surface of the moving platform, or an airflow entering from a gap between the protecting cover and a position determination apparatus. ### Claim 15 (depends on 2) The automatic cleaning device according to claim 2, wherein the airflow entering from the gap of the main brush module comprises an airflow entering from a gap between a main brush and a lower shell, and then passing through an opening around a main brush drive motor to a front wall of the accommodating chamber. ### Claim 16 (depends on 2) The automatic cleaning device according to claim 2, wherein the airflow entering from the rear side wall of the moving platform comprises an airflow passing thorough air inlet notches of baffles on two sides of a fan bracket to a side surface of the accommodating chamber after entering interior of a shell of the moving platform from an exhaust port. ### Claim 17 (depends on 2) The automatic cleaning device according to claim 2, wherein at least one of the third side wall or the fourth side wall respectively comprises a plurality of spacers on outer sides, and the plurality of spacers form a plurality of air paths. ### Claim 18 (depends on 2) The automatic cleaning device according to claim 2, wherein a front side wall of the accommodating chamber respectively comprises an air passage on an upper outer side, and at least one of the airflow entering from the top gap of the moving platform or the airflow entering from the gap of the main brush module passes through the air passage to the plurality of air inlet holes. ### Claim 19 (depends on 2) The automatic cleaning device according to claim 2, wherein the accommodating chamber comprises a first chamber and a second chamber that are provided adjacent to each other in sequence in a forward direction of the automatic cleaning device, a dust suction port is provided at a bottom of a front side wall of the first chamber, an air outlet is provided on a rear side wall at a connection between the first chamber and the second chamber, the dust box further comprises a first opening and a second opening, and the dust suction port, the air outlet, the first opening and the second opening are all substantially located on a central axis in a front-to-back direction of the automatic cleaning device. ### Claim 20 An automatic cleaning system, comprising: a dust collection station; and an automatic cleaning device, comprising: a moving platform, comprising an accommodating chamber, wherein the moving platform is configured to automatically move on an operating surface; and a cleaning module, comprising a dust box and a main brush module, wherein the dust box is detachably mounted in the accommodating chamber, and the dust box comprises a first side wall and a second side wall that are provided opposite to each other; wherein the accommodating chamber further comprises a third side wall provided corresponding to the first side wall of the dust box, and a fourth side wall provided corresponding to the second side wall of the dust box, and at least one of the third side wall or the fourth side wall comprises a plurality of air inlet holes, and the plurality of air inlet holes are configured to provide intake airflows into the dust box during a dust collection process; a source of the intake airflows comprises at least one of: an airflow entering from a top gap of the moving platform, an airflow entering from a gap of the main brush module, or an airflow entering from a rear side wall of the moving platform; and the dust collection station comprises a dust collection port, and the dust collection port is docked with a port of the main brush module for dust collection.