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EP-4388963-B1 - BASE STATION AND CLEANING ROBOT SYSTEM

EP4388963B1EP 4388963 B1EP4388963 B1EP 4388963B1EP-4388963-B1

Inventors

  • LI, XING
  • CHENG, Pan
  • YANG, ZHIMIN

Dates

Publication Date
20260506
Application Date
20220715

Claims (14)

  1. A base station (20), comprising: a base station body (21), provided with a cleaning tank (22); characterized by a filtration apparatus (40), located in the cleaning tank (22); wherein the filtration apparatus (40) is provided with a float assembly (41), and the float assembly (41) comprises a float body (411) floating on a surface of liquid under an action of the liquid, wherein one of a non-contact sensing element and a non-contact sensed element is positioned on the float body (411), and the other of the non-contact sensing element and the non-contact sensed element is positioned on the base station body (21), and when the filtration apparatus (40) is located in the cleaning tank (22) and the surface of the liquid in the cleaning tank (22) is within a specific range, the non-contact sensing element is capable of detecting the non-contact sensed element.
  2. The base station (20) according to claim 1, wherein the filtration apparatus (40) further comprises a filter screen (42) and a housing, the filter screen (42) is located above the housing and encloses an accommodating cavity with the housing, the filter screen (42) is used to filter some of the impurities carried by liquid flowing into the accommodating cavity through the cleaning tank (22), and the accommodating cavity is used to accommodate some of the solid impurities carried by the liquid in the accommodating cavity.
  3. The base station (20) according to claim 2, wherein the filter screen (42) is further provided with a fence (48), the fence (48) and part of an outer edge of the filter screen (42) are connected and enclose a mounting space interfacing with the accommodating cavity, the float body (411) is located in the mounting space along a horizontal direction, and filter holes (423) are positioned in the filter screen (42) outside the mounting space.
  4. The base station (20) according to claim 2, wherein the float assembly (41) comprises: a mounting bracket (412), detachably positioned on the filter screen (42) or formed on the filter screen (42); and a connector, used to connect the mounting bracket (412) and one end of the float body (411), so that the float body (411) is rotatable relative to the mounting bracket (412).
  5. The base station (20) according to claim 2, wherein the base station (20) is provided with a sewage outlet (211), the filtration apparatus (40) further comprises a water outlet (44) in communication with the accommodating cavity and the sewage outlet (211), the water outlet (44) is located on at least one side of the filtration apparatus (40), and the water outlet (44) is higher than a bottom surface of the accommodating cavity.
  6. The base station (20) according to claim 2, wherein the filtration apparatus (40) further comprises a handle (45) positioned on the filter screen (42).
  7. The base station (20) according to claim 6, wherein the handle (45) is positioned on or formed on the filter screen (42) and comprises a protruding portion (451) connected to the filter screen (42), and a stop portion (452) is positioned on an outer edge of an end of the protruding portion (451) away from the filter screen (42).
  8. The base station (20) according to claim 2, wherein opening and closing of the accommodating cavity between the filter screen (42) and the housing are implemented through a pivot mechanism.
  9. The base station (20) according to claim 2, wherein a bottom part of the cleaning tank (22) is provided with a mounting groove, the accommodating cavity is adapted to be located in the mounting groove, and a first foolproof positioning member (241) and a second foolproof positioning member (242) are positioned from top to bottom in the cleaning tank (22); the filtration apparatus (40) is further provided with a foolproof limiting member (46) and an indicating member (421); and when the foolproof limiting member (46) matches the first foolproof positioning member (241), the indicating member (421) indicates that the filtration apparatus (40) is not mounted in place, and when the foolproof limiting member (46) matches the second foolproof positioning member (242), the indicating member (421) indicates that the filtration apparatus (40) is mounted in place.
  10. The base station (20) according to claim 9, wherein the first foolproof positioning member (241) and the second foolproof positioning member (242) are positioned above the mounting groove.
  11. The base station (20) according to claim 10, wherein the indicating member (421) comprises a planar structure positioned above the foolproof limiting member (46); when the foolproof limiting member (46) matches the first foolproof positioning member (241), the planar structure is higher than a tank top of the cleaning tank (22), indicating that the filtration apparatus (40) is not mounted in place; and when the foolproof limiting member (46) matches the second foolproof positioning member (242), the planar structure is positioned below the tank top or flush with the tank top, indicating that the filtration apparatus (40) is mounted in place, optionally, the filtration apparatus (40) further comprises a connecting portion (47) connected with the filter screen (42) and extending beyond the mounting groove, the foolproof limiting member (46) is positioned on the connecting portion (47), and an end of the connecting portion away from the filter screen (42) is provided with the planar structure.
  12. The base station (20) according to claim 9, wherein both the first foolproof positioning member (241) and the second foolproof positioning member (242) are elastic members, the first foolproof positioning member (241) comprises a first abutting portion adapted to abut against the foolproof limiting member, the second foolproof positioning member (242) comprises a second abutting portion adapted to abut against the foolproof limiting portion, and the first abutting portion is positioned above the second abutting portion.
  13. The base station (20) according to claim 12, wherein the first foolproof positioning member (241) further comprises a first supporting portion connecting the first abutting portion and the base station body, and the second foolproof positioning member (242) further comprises a second supporting portion connecting the second abutting portion and the base station body; and at least one of the first supporting portion or the second supporting portion is a bent structure, and the bent structure is at least one of L-shaped, Z-shaped, V-shaped, N-shaped, or M-shaped.
  14. A cleaning robot system, comprising: a cleaning robot; characterized by a base station (20) according to any one of claims 1 to 13, wherein the cleaning robot is adapted to dock on the base station (20).

Description

RELATED APPLICATION This application claims priority to Chinese Patent Application No. 202110975999.1 filed on August 24, 2021. TECHNICAL FIELD The present invention relates to the field of smart home technologies and, in particular, to a base station and a cleaning robot system. BACKGROUND In an existing base station, cleaning components are typically provided to clean a flat mop cloth of a sweeping and mopping integrated cleaning robot. At the same time, during the cleaning process, debris is collected into a cleaning tank. Due to the presence of solid debris, sewage pipes will be blocked during a sewage discharge process of the cleaning tank. CN 112 515 546 A discloses a garbage collection base station including a base station body, a dust collection assembly, a draught fan, a dust fullness detection device and a controller, which aims to solve the problem that the base station may easily malfunction when the user fails to handle the dust bag in time. CN 113 243 859 A discloses a method for interacting liquid level state between the surface cleaning device and base station, where the operations of refilling, self-cleaning, and liquid return of the surface cleaning device on the base station are implemented based on the liquid level. CN 113 017 502 A discloses a base station, where the base station body has a communication opening and a cleaning inner cavity, the cleaning assembly is detachably installed in the cleaning inner cavity and can be taken out through the communication opening. US 2020/077858 A1 discloses a base station arranged to be independent to the cleaning robot of the cleaning robot system, where the base station includes a base station body and a mop member cleaning device arranged on the base station body, so that the mop of the claning robot can be cleaned. SUMMARY A series of simplified concepts is introduced in the present invention, which will be further described in detail in the DETAILED DESCRIPTION part. This part of the present invention does not intend to limit the key features and essential technical features of the claimed technical solution, and does not mean to determine the protection scope of the claimed technical solution. The present invention is set out in the appended claims. An embodiment of a first aspect of the present invention provides a base station, including a base station body, provided with a cleaning tank; and a filtration apparatus, positioned in the cleaning tank. The filtration apparatus is provided with a float assembly, and the float assembly includes a float body floating on a surface of liquid under the action of the liquid. One of a non-contact sensing element and a non-contact sensed element is positioned on the float body, and the other is positioned on the base station body. When the filtration apparatus is positioned in the cleaning tank and the surface of the liquid in the cleaning tank is within a specific range, the non-contact sensing element is capable of detecting the non-contact sensed element. Further, the filtration apparatus is positioned on at least one side of the bottom part of the cleaning tank. Further, a high liquid-level value of the cleaning tank is a first preset threshold, and the specific range is less than or equal to the first preset threshold. Further, the non-contact sensed element is positioned on the float body; and the non-contact sensing element is positioned on the base station body. Further, the non-contact sensed element includes a magnetic member; and the non-contact sensing element includes a magnetic sensing element. Further, the non-contact sensing element is electrically connected to a controller of the base station to output a sensing result to the controller. Further, the filtration apparatus includes a filter screen and a housing. The filter screen is provided above the housing and encloses an accommodating cavity with the housing. The filter screen is used to filter part of the impurities carried by liquid flowing into the accommodating cavity through the cleaning tank. The accommodating cavity is used to accommodate part of the solid impurities carried by the liquid in the accommodating cavity. Further, the filter screen is further provided with a fence. The fence and part of an outer edge of the filter screen are connected and enclose a mounting space in communication with the accommodating cavity. The float body is located in the mounting space along a horizontal direction. Filter holes are provided in the filter screen outside the mounting space. Further, the float assembly includes a mounting bracket, detachably positioned on the filter screen or formed on the filter screen; and a connector, which connects the mounting bracket and one end of the float body so that the float body is rotatable relative to the mounting bracket. Further, the base station is provided with a sewage outlet. The filtration apparatus further includes a water outlet in communication with the accommodating cavity and the sewage