Dishwasher Door Foam Panel for Noise and Heat Insulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional dishwashers face challenges in noise reduction and energy efficiency due to the complexity of their assembly and the need for multiple materials, which also increases manufacturing costs and complexity.
Innovation Solution
A dishwasher door assembly featuring a foam panel with areas of differing densities for sound absorption and thermal insulation, integrated with wiring attachments and structural features for component mounting, simplifying assembly and reducing parts requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional dishwashers use complex assembly with multiple materials, then manufacturing precision and component functionality are improved, but device complexity and manufacturing costs increase
Solution Approach 1:
The patent combines multiple functional components (wiring harness attachment, grommet mounting, structural support, sound absorption, and insulation) into a single foam panel. This merging reduces the number of separate parts and simplifies assembly while maintaining all necessary functionalities, directly addressing the contradiction between reliability and device complexity.
Solution Approach 2:
The foam panel serves multiple functions simultaneously: it provides structural support for mounting wiring and grommets, sound absorption, thermal insulation, and vibration damping. This multi-functionality eliminates the need for separate components, reducing assembly complexity while ensuring reliable component functionality.
2Object-affected harmful factors
If dishwasher door uses multiple materials for sound absorption and thermal insulation, then noise reduction and energy efficiency are improved, but manufacturing complexity and costs increase
Solution Approach 1:
The foam panel features varying densities in different regions, with higher density areas providing enhanced sound absorption and thermal insulation where needed. This local variation in material properties optimizes noise reduction and energy efficiency while maintaining a simple single-piece construction that is easier to manufacture than multiple separate components.
Solution Approach 2:
The patent uses a composite foam structure with varying densities within a single material matrix. This composite approach provides both sound absorption and thermal insulation properties in one material, eliminating the need for multiple different materials and simplifying the manufacturing process.
3Loss of energy
If dishwasher door uses multiple materials for thermal insulation, then energy efficiency is improved, but device complexity increases
Solution Approach 1:
The foam panel merges thermal insulation, sound absorption, and structural mounting functions into a single component. This eliminates the need for separate insulation materials and mounting structures, reducing parts requirements while maintaining energy efficiency through the foam's inherent insulating properties.
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
The foam panel effectively reduces noise and enhances energy efficiency by providing sound suppression and thermal insulation, while simplifying manufacturing and reducing costs through reduced part complexity.
Implementation Method 1
The foam panel effectively reduces noise and enhances energy efficiency by providing sound suppression and thermal insulation
Implementation Method 2
The foam panel effectively reduces noise and enhances energy efficiency by providing sound suppression and thermal insulation
Data Source
AI summary
A dish treating appliance for treating dishes having a tub at least partially defining a treating chamber with an access opening and a door movable between opened/closed positions to selectively open/close the access opening. The door having an inner door panel confronting the treating chamber in the closed position, and an outer door panel spaced from the inner door panel to define a door cavity there between. A foam panel located within the door cavity, the foam panel have areas of differing densities.