Cleaning Sponge Roller with Exposed Protrusion Surfaces
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Solution Overview
Problem
The existing sponge rollers used in scrub cleaning for electronics components have a low open area ratio on their outer surfaces, leading to increased start-up time, reduced product life cycle, and potential damage to the components due to particle capture and poor water flow, which affects the cleaning efficiency and reliability of the process.
Innovation Solution
A sponge roller with protrusions having an interior exposed surface with a high open area ratio, where the top outer surfaces are formed as interior exposed surfaces, and the outer peripheral surfaces are covered with a lower porosity skin layer, allowing for improved water flow and reduced particle capture, thereby enhancing cleaning capability and product life cycle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the outer surface of the protrusions is covered by an outer skin layer with lower porosity, then the structural integrity and durability of the sponge roller is improved, but the open area ratio of the surface decreases, making it difficult to flow wash water and increasing start-up time
Solution Approach 1:
The sponge roller surface is segmented into multiple protrusions, each with controlled porosity characteristics. The outer skin layer is present but the internal porous structure is exposed at the surface of each protrusion, creating a segmented structure that combines durability with high open area ratio for water flow.
Solution Approach 2:
Different regions of the sponge roller have different porosity characteristics. The outer skin layer provides structural integrity while the exposed internal structure at the protrusion surfaces provides high open area ratio. This local differentiation resolves the contradiction between strength and water flow capability.
2Stability of the object's composition
If the outer skin layer has low open area ratio, then the sponge roller maintains its shape and durability, but particles with smaller diameter penetrate inside and are captured, reducing product life cycle
Solution Approach 1:
The sponge roller structure differentiates between the outer skin layer (maintaining shape stability) and the exposed internal porous structure at protrusion surfaces (preventing particle capture). This local quality differentiation allows the roller to maintain shape while avoiding particle penetration issues.
Solution Approach 2:
The porous structure that could potentially trap particles is instead designed to allow particles to pass through easily due to the high open area ratio and appropriate pore size distribution, converting a potential harm into a benefit for particle removal without capture.
3Strength
If the outer skin layer has low open area ratio with high material abundance ratio, then the roller maintains structural strength, but relatively large particles are captured during cleaning, potentially damaging the surface to be cleaned
Solution Approach 1:
The structure creates local quality differences where the outer skin provides strength while the exposed internal porous structure at protrusion surfaces provides particle release capability. This prevents harmful particle capture while maintaining structural integrity.
Solution Approach 2:
The porous structure converts the potential harm of particle capture into a benefit by allowing particles to pass through and be released, preventing damage to the cleaned surface while maintaining roller strength through the outer skin layer.
4Productivity
If the open area ratio of the protrusion surface is increased, then water flow and cleaning capability are improved, but the structural integrity of the outer surface may be compromised
Solution Approach 1:
The roller surface is segmented into multiple protrusions with exposed internal porous structures. This segmentation allows high open area ratio at the cleaning surfaces while the overall roller structure maintains integrity through the outer skin layer and internal framework.
Solution Approach 2:
Different regions have different properties: the outer skin layer maintains structural integrity while the protrusion surfaces have high open area ratio for optimal water flow and cleaning capability. This local quality differentiation resolves the contradiction between strength and productivity.
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 reduces start-up time, improves the life cycle of the sponge roller, and minimizes damage to the components being cleaned by facilitating better water flow and reducing particle capture, resulting in more efficient and reliable scrub cleaning.
Implementation Method 1
a plurality of protrusions formed integrally on an outer peripheral surface of the roller body, wherein outer surfaces of the protrusions respectively have an interior exposed surface making contact with the surface to be cleaned while cleaning in a state where internal structures of the protrusions are exposed
Data Source
AI summary
A cleaning sponge roller 1 is made of a polyvinyl acetal porous material having elasticity in a wet state, and includes a roller body 3 in an approximate cylinder form, and a plurality of protrusions 5 formed integrally on an outer peripheral surface 3a of the roller body 3, and rotates the multiple protrusions 5 to make contact with a surface to be cleaned so as to clean the surface. Outer surfaces of the protrusions 5 respectively have a top outer surface 5a (interior exposed surface) making contact with the surface to be cleaned while cleaning in a state where internal structures of the protrusions 5 are exposed.