Pool Cleaning Robot Dual Water Outlet Control
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Solution Overview
Problem
Current pool cleaning robots face difficulties in maintaining motion stability and cleaning efficiency when encountering obstacles or climbing pool sidewalls due to insufficient reaction force from obliquely upward water spraying, leading to idling wheels and inadequate forward movement.
Innovation Solution
A pool cleaning robot equipped with a vehicle body, sensors, first and second electric motors, water suction and outlets, and screw propellers, where the sensors detect motion states to control water drainage through the outlets, adjusting the drainage direction and angle to enhance adhesion and movement, including using a one-way valve and filter screen for improved stability and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If water is sprayed obliquely upward to provide reaction force for forward movement, then the robot can move along the bottom or sidewall, but the robot cannot maintain adhesion when encountering obstacles or climbing at certain angles due to insufficient reaction force
Solution Approach 1:
The single water outlet is divided into two separate outlets: a first water outlet for horizontal rearward spraying to provide forward driving force, and a second water outlet for vertical upward spraying to provide adhesion force. This segmentation allows independent optimization of driving and adhesion functions.
Solution Approach 2:
The patent introduces dynamic control through sensors that detect motion states (distance to obstacles, wheel idling, climbing angles) and automatically adjust which water outlet operates. This dynamic adaptation ensures optimal performance across varying operational conditions.
2Device complexity
If the robot relies on a single water outlet for both driving and adhesion, then the device complexity is reduced, but the cleaning efficiency decreases due to wheel idling and insufficient power
Solution Approach 1:
The water outlet system is segmented into two independently controllable outlets, each optimized for specific functions (driving vs. adhesion), enabling both functions to operate at full capacity simultaneously without the trade-offs of a single outlet system.
Solution Approach 2:
Sensors provide real-time feedback on robot motion state, obstacle distance, and wheel status, which controls automatically select and adjust water outlet operation. This feedback mechanism ensures optimal cleaning efficiency by preventing wheel idling and maintaining proper adhesion throughout the cleaning process.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution increases motion stability and cleaning efficiency by dynamically controlling water drainage to provide necessary reaction forces, preventing wheel idling and ensuring effective movement along pool bottoms and sidewalls.
Implementation Method 1
by absorbing water through the water suction port, the robot is adsorbed on the bottom or sidewall of the swimming pool
Implementation Method 2
the water outlet arranged at the upper inclined side spray water obliquely upward, thus the reaction force of the water provides auxiliary power for the robot to move forward
Data Source
AI summary
The present disclosure provides a pool cleaning robot and control method thereof, the pool cleaning robot including: a vehicle body, a sensor, a first electric motor and a second electric motor, a water suction port provided at a bottom part of the vehicle body, a first water outlet communicated with the water suction port provided rearward along a horizontal direction at a rear part of the vehicle body, a second water outlet communicated with the water suction port provided vertically upward at a top part of the vehicle body, and the sensor arranged at a front part of the vehicle body for detecting a motion state of the vehicle body; the first electric motor configured to control the first water outlet to drain water when the sensor detects that the vehicle body is in a first motion state; the second electric motor configured to control the second water outlet to drain water when the sensor detects that the vehicle body is in a second motion state. Comparing to the prior art, the present disclosure increases the motion stability of the pool cleaning robot and improves the cleaning efficiency and cleaning effect.