公开(公告)号：WO2022001339A1

公开(公告)日：2022-01-06

申请号：PCT/CN2021/090770

申请日：2021-04-28

Applicant: 安徽大汉机器人集团有限公司

Inventor： 裴存珠 ,  康店洞

IPC: A47L11/40 ,  G01F23/24 ,  A47L11/4002 ,  A47L11/4016 ,  A47L11/4019 ,  G01F23/241 ,  G01F23/242

Abstract: 一种电信号直接检测水箱（1）状态的装置、水箱（1）状态检测方法及洗地机，包括水箱（1）以及与水箱（1）连接的检测装置（2），检测装置（2）位于水箱（1）内部，检测装置（2）包括第一导电接触体（21）、第二导电接触体（22）、微处理器（23）；第一导电接触体（21）位于水箱（1）底部与水箱（1）底部连接；第二导电接触体（22）位于水箱（1）上端与水箱（1）侧壁连接且位于水箱（1）的最高水位处；当水箱（1）安装到位后，第一导电接触体（21）与第二导电接触体（22）分别与微处理器（23）电连接。电信号直接检测水箱（1）状态的装置结构简单、安装方便，同时对水箱（1）装置的结构要求较低，适用范围广泛，且其测量精度高，不会受到水中杂质的影响。

公开(公告)号：WO2021141778A1

公开(公告)日：2021-07-15

申请号：PCT/US2020/066775

申请日：2020-12-23

Applicant: TECHTRONIC CORDLESS GP

Inventor： POHLMAN, Kevin ,  DAVILA, Rafael ,  DEBLASIO, Nicholas

IPC: A47L11/03 ,  A47L11/40 ,  A47L11/4002 ,  A47L11/4011 ,  A47L11/4016 ,  A47L11/4019 ,  A47L9/2821 ,  A47L9/2842 ,  A47L9/2884

Abstract: A cleaning system comprising a vacuum source, a current sensor, a recovery tank having a shutoff float configured to float on a surface of fluid within the recovery tank, and a controller. The vacuum source is in fluid communication with a suction inlet via first and second air paths within the recovery tank. The shutoff float is further configured to block the first air path upon the fluid within the recovery tank reaching a desired level. The controller is configured to receive, from the current sensor, a signal indicative of the current drawn by the vacuum source. The controller is further configured to determine, based on the current drawn by the vacuum source crossing a threshold, the fluid within the recovery tank has reached the desired level and control an operating element of the cleaning system upon determining the fluid within the recovery tank has reached the desired level.

公开(公告)号：WO2021127131A1

公开(公告)日：2021-06-24

申请号：PCT/US2020/065534

申请日：2020-12-17

Applicant: TECHTRONIC CORDLESS GP

Inventor： DAVILA, Rafael ,  LIGHTBOURN, Robert

IPC: A47L11/40 ,  A47L11/30 ,  A47L11/4016 ,  A47L11/4019 ,  A47L11/4025 ,  A47L11/4027 ,  A47L11/4088

Abstract: A floor cleaner including a vacuum source, a supply tank, and a recovery tank. The floor cleaner is configured to remove debris and fluid from a surface to be cleaned. The recovery tank includes a removably coupleable strainer configured to filter hair and large debris from a dirty fluid during emptying of the recovery tank.