Pool Cleaner Filter Assembly for Clog-Resistant Water Flow
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Solution Overview
Problem
Underwater cleaning devices face issues with debris accumulation at the filtering layer, leading to blocked filtering holes and insufficient water flow into the pump suction assembly, affecting wall and slope climbing performance and user experience.
Innovation Solution
A pool cleaning robot design with a filtering assembly featuring a filtering box cavity divided into two compartments, a main water pump impeller casing, and a main water pump, where a cover part automatically adjusts to expose a flow guiding opening when debris clogs, ensuring consistent water flow to the pump.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filtering portion is disposed on each of four sides surrounding the cavity to improve filtering effect, then the filtering capability is improved, but the debris accumulates at the filtering layer blocking filtering holes, resulting in insufficient water flow to the pump suction assembly
Solution Approach 1:
The filtering portion is divided into multiple filtering layers (first filtering layer and second filtering layer) positioned at different locations. The first filtering layer is disposed on the first side surface while the second filtering layer is disposed on the second side surface, segmenting the filtering function across multiple surfaces to prevent single-point clogging and maintain water flow to the pump suction assembly
Solution Approach 2:
The patent introduces a third dimension by positioning filtering layers at different heights and locations within the cavity structure. The first filtering layer is located at a first height while the second filtering layer is located at a second height, creating vertical spacing that allows water to flow through multiple levels and reduces the impact of debris accumulation at any single filtering surface
2Reliability
If the filtering layer is configured to filter out debris in the water, then the cleaning effectiveness is improved, but the thrust generated by the pump suction assembly becomes insufficient when the filtering layer is blocked
Solution Approach 1:
The patent introduces an intermediary water collection cavity that collects water from multiple filtering layers before it reaches the pump suction assembly. This intermediary structure ensures that even when filtering layers are partially blocked, water can still accumulate in the cavity and flow to the pump, maintaining sufficient thrust for wall and slope climbing while preserving cleaning effectiveness
Solution Approach 2:
The patent changes the flow path parameters by creating multiple flow channels through the cavity structure. Water can flow through different paths (through the first filtering layer, through the second filtering layer, or through openings in the cavity walls) to reach the pump suction assembly, ensuring that the pump receives adequate water flow and generates sufficient thrust regardless of filtering layer blockage程度
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
Enhances the robot's ability to climb walls and slopes by maintaining adequate water flow, improving operational stability and user experience.
Implementation Method 1
a main water pump, where at least a part of the main water pump is provided inside the third cavity, where the liquid inlet portion, the second cavity, the third cavity, the main water pump, and the liquid outlet portion are in fluid communication, where the main water pump is configured to drive water to enter the second cavity through the liquid inlet portion and then flow from the second cavity to the third cavity through the water outlet and finally flow out of the pool cleaning robot from the third cavity through the liquid outlet portion
Implementation Method 2
the filtering portion includes an exchange opening communicating with the cavity and a filtering layer covering the exchange opening. When water flows out of the cavity, the filtering layer is configured to filter out debris in the water
Data Source
AI summary
The present disclosure provides a pool cleaning robot. The pool cleaning robot includes a body; a filtering box detachably mounted on the body; and an in-position detection mechanism for the filtering box, where the in-position detection mechanism for the filtering box is configured to detect whether the filtering box is mounted in position on the body. The in-position detection mechanism for the filtering box includes a sensing assembly, and the sensing assembly includes a sensing part and a sensing mating part. The sensing part and the sensing mating part are both disposed at a position other than the filtering box, and the filtering box moves, so that the sensing part mates with the sensing mating part to detect whether the filtering box is mounted in position on the body.