Vector Nozzle Control for Multi-Surface Pool Cleaning
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Solution Overview
Problem
Existing pool cleaning devices struggle to efficiently navigate and clean various surfaces within a pool, including the bottom, walls, and water surface, while maintaining stability and direction control.
Innovation Solution
A pool cleaning device equipped with a fluid ejecting unit, vector nozzle, and a second driving unit that rotates the nozzle to align its outlet with discharge openings, allowing water to be ejected in different directions for thrust and pressure control, combined with a waterflow guiding unit to direct water flow effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If water is ejected through a fixed nozzle, then the structure is simple, but the device cannot adapt to different cleaning surfaces and directions
Solution Approach 1:
The nozzle is transformed from a fixed structure to a dynamic one capable of rotation. The second driving unit enables the nozzle to rotate and align its outlet with different discharge openings, allowing the device to adapt to various cleaning surfaces (bottom, walls, water surface) while maintaining a relatively compact structure through controlled rotational movement.
Solution Approach 2:
The rotating nozzle mechanism enables a single ejection unit to serve multiple functions by directing water flow toward different discharge openings. This allows the same nozzle to clean different surfaces (bottom, side walls, water surface) and provide different functions (thrust generation, cleaning pressure) without requiring separate nozzles for each function.
2Adaptability or versatility
If multiple discharge openings are provided, then the device can clean various surfaces, but the housing structure becomes more complex
Solution Approach 1:
The housing is segmented with multiple discrete discharge openings positioned at different locations and orientations. Each discharge opening serves a specific cleaning function (bottom cleaning, wall cleaning, water surface cleaning), allowing the device to handle various cleaning surfaces while maintaining a modular and organized housing structure.
Solution Approach 2:
Multiple discharge openings are integrated into the housing to enable a single device to perform multiple cleaning functions. By combining several discharge openings with the rotatable nozzle system, the housing achieves multi-functionality without requiring separate devices for each cleaning surface.
3Speed
If water flow direction is fixed, then the thrust direction is stable, but the device cannot change movement direction efficiently
Solution Approach 1:
The nozzle rotation system transforms the fixed water flow direction into a dynamic one. The second driving unit enables the nozzle to rotate and realign with different discharge openings, allowing the device to change movement direction efficiently by redirecting water ejection toward appropriate discharge openings based on the desired travel direction.
Solution Approach 2:
The control system determines the required water ejection direction based on the pool cleaning device's current position, orientation, and cleaning objectives. This feedback mechanism enables intelligent adjustment of the nozzle rotation and water flow direction to optimize movement and cleaning efficiency.
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
Enables the pool cleaning device to efficiently traverse and clean the pool's surfaces by generating thrust and pressure in multiple directions, ensuring stability and adaptability to different operational states.
Implementation Method 1
a second driving unit configured to drive the vector nozzle to rotate so that the outlet of the vector nozzle is at least partially aligned with one of the at least two discharge openings
Implementation Method 2
The filtered and purified water can be discharged into the pool, and the discharged water can be used as a thrust to the pool cleaning device, so as to provide the thrust for the pool cleaning device to travel in the water
Implementation Method 3
a waterflow guiding unit configured to guide the water ejected from the outlet of the vector nozzle to one of the at least two discharge openings
Implementation Method 4
the at least one signal transmitting component is a magnetic component; and the at least one signal receiving component is a Hall sensor
Data Source
Figure 1A~1B
Figure 2~3A
Figure 3B~3C
AI summary
Disclosed are a pool cleaning device and a corresponding control method. The pool cleaning device includes: a fluid ejecting unit including a fluid channel through which water flows and a vector nozzle, an inlet of the vector nozzle being rotatably connected with the fluid channel; a first driving unit configured to drive water to be ejected from an outlet of the vector nozzle via the fluid channel; a housing, with at least two discharge openings arranged thereon; and a second driving unit configured to drive the vector nozzle to rotate so that the outlet of the vector nozzle is at least partially aligned with one of the at least two discharge openings.