Asymmetrical Pool Cleaning Robot Waterline Stability
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Solution Overview
Problem
Current cleaning robots for pools face inefficiencies in navigation and cleaning, particularly at the waterline, leading to uncontrolled movements, excessive air intake, and wear and tear due to symmetrical motor and nozzle placement, which causes destabilization and loss of control when breaching the waterline.
Innovation Solution
The cleaning robot is designed with asymmetrical placement of motors and nozzles closer to the front edge, combined with a waterline movement scheme using selectively activated jets to maintain control and stability, ensuring parallel brush alignment and minimal air intake, allowing for controlled vertical and horizontal movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If motors and nozzles are placed symmetrically in the cleaning robot, then the structure is balanced and easy to manufacture, but the robot experiences uncontrolled movements and instability when breaching the waterline
Solution Approach 1:
The patent applies asymmetry by positioning the pump motor closer to the front edge of the housing than to the rear edge, and placing the fluid inlet and outlet closer to the rear edge. This asymmetrical arrangement creates a specific center of gravity and hydrodynamic profile that stabilizes the robot during waterline movement, preventing uncontrolled movements and excessive air intake that occur with symmetrical placement.
2Ease of operation
If the pump motor is positioned closer to the front edge, then control and stability at the waterline are improved, but the fluid inlet and outlet must be repositioned closer to the rear edge increasing structural complexity
Solution Approach 1:
The patent applies local quality by assigning different spatial relationships to different components: the pump motor is positioned closer to the front edge to provide stability and control during waterline operation, while the fluid inlet and outlet are positioned closer to the rear edge to optimize fluid flow dynamics. Each component's position is optimized for its specific function rather than using a uniform arrangement.
3Ease of manufacture
If symmetrical motor and nozzle placement is used, then manufacturing is simpler, but the robot experiences excessive air intake and wear and tear during waterline cleaning
Solution Approach 1:
The patent resolves this contradiction by implementing asymmetrical placement of the pump motor closer to the front edge and fluid inlet/outlet closer to the rear edge. This configuration reduces excessive air intake during waterline cleaning operations and minimizes wear and tear on brushes and mechanical components, while still allowing for practical manufacturing processes.
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
This configuration enhances control and stability at the waterline, reducing wear and tear, and minimizing air intake, enabling efficient and controlled cleaning and navigation.
Implementation Method 1
an impeller; a pump motor that is configured to rotate the impeller; wherein the impeller is configured to induce a flow of fluid from the fluid inlet through the filtering unit and towards the fluid outlet
Data Source
AI summary
A cleaning robot that comprises a housing that comprises a fluid inlet, a fluid outlet, a rear edge and a front edge; a filtering unit; an impeller; a pump motor that is configured to rotate the impeller; wherein the impeller is configured to induce a flow of fluid from the fluid inlet through the filtering unit and towards the fluid outlet; wherein the pump motor is substantially closer to the front edge of the housing than to the rear edge of the housing; and wherein each one of the fluid inlet and the fluid outlet is substantially closer to the rear edge of the housing than to the front edge of the housing.