Pool-Cleaning Robot UV Filtration to Prevent Filter Bacteria
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Solution Overview
Problem
Existing pool-cleaning robots suffer from secondary contamination and odor issues due to bacterial accumulation on the filter assembly, leading to reduced hygiene and increased maintenance frequency.
Innovation Solution
Incorporating a germicidal lamp assembly adjacent to or within the flow channel of the filter assembly to irradiate and disinfect water before filtration, combined with a reflective layer on the housing to enhance germicidal efficiency and protect the housing from aging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter assembly is used to clean pool water, then water filtration is achieved, but bacterial accumulation on the filter causes secondary contamination and odor
Solution Approach 1:
The germicidal lamp assembly is positioned to irradiate water before it enters the filter assembly, killing bacteria in advance. This preliminary disinfection action prevents bacterial accumulation on the filter surface, eliminating the source of secondary contamination and odor while maintaining effective water filtration
Solution Approach 2:
The germicidal lamp assembly acts as an intermediary component between the water inlet and the filter assembly. It introduces UV irradiation as a mediating factor that disinfects water without interfering with the mechanical filtration process, thereby solving the bacterial accumulation problem while preserving filtration effectiveness
2Object-generated harmful factors
If germicidal lamp assembly is added to disinfect water, then bacterial accumulation is reduced, but device complexity increases
Solution Approach 1:
The germicidal lamp assembly is integrated into the existing housing structure of the pool-cleaning robot, merging the disinfection function with the filtration system. This combination approach adds the UV irradiation capability without requiring a completely separate system, thereby reducing the increase in device complexity while achieving effective bacterial reduction
Solution Approach 2:
The housing structure serves multiple functions: it contains both the filter assembly and the germicidal lamp assembly, and provides mounting surfaces for both components. This multi-functionality approach allows the addition of disinfection capability while utilizing existing structural elements, minimizing the increase in overall device complexity
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
Reduces secondary contamination, maintains improved hygiene, decreases filter maintenance frequency, and enhances germicidal efficiency while extending the lifespan of the pool-cleaning robot components.
Implementation Method 1
The germicidal lamp assembly is arranged adjacent to the filter assembly for irradiating a surface of the filter assembly, or the germicidal lamp assembly is located in a flow channel between the water inlet and the filter assembly for irradiating the water after entering the housing but before filtration
Implementation Method 2
a reflective layer is arranged on an inner wall of the housing at a position directly opposite to a light-emitting surface of the germicidal lamp
Data Source
AI summary
A pool-cleaning robot includes a housing defining a receiving chamber therein, a power assembly connected to the housing, as well as a filter assembly, a pump assembly and a germicidal lamp assembly which are accommodated in the housing. The housing defines a water inlet and a water outlet which are fluidly communicated with one another. The power assembly is configured to drive the pool-cleaning robot to travel in a pool. The filter assembly has a filter chamber that is in fluid communication with the water inlet and the water outlet. The pump assembly is configured to drive the water flowing into the receiving chamber from the water inlet and then out from the water outlet after being filtered by the filter assembly. The germicidal lamp assembly is arranged adjacent to the filter assembly or in a flow channel between the water inlet and the filter assembly.