3D Soundproofing Element for Dishwasher Technical Space
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Solution Overview
Problem
Household dishwashers fail to meet increased acoustic requirements due to ongoing noise emission from electrical components and vibrations within the technical space, despite existing soundproofing measures.
Innovation Solution
A three-dimensionally preformed soundproofing element surrounds the technical space, with opposite side walls resting on the base support and washing compartment, providing effective sound insulation and damping by preventing sound propagation through reflection and absorption, and can be designed to vary material thickness for optimal noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a three-dimensionally preformed molded soundproofing element is used to surround the technical space, then airborne noise propagation is effectively blocked, but the complexity of installation and assembly increases
Solution Approach 1:
Multiple soundproofing functions (absorption, reflection, and structural support) are merged into a single three-dimensionally preformed molded element. This integrated design eliminates the need for assembling multiple separate components, reducing installation complexity while maintaining effective noise isolation throughout the technical space.
Solution Approach 2:
The soundproofing element is preformed into its final three-dimensional configuration before installation. This preliminary shaping ensures that the element fits precisely into the technical space and provides optimal noise protection from the outset, eliminating the need for complex on-site adjustments or modifications during assembly.
2Object-generated harmful factors
If the soundproofing element is designed as a three-dimensionally preformed molded part, then it retains its original profile shape for effective sound isolation, but manufacturing and material costs increase
Solution Approach 1:
The soundproofing element utilizes variations in material thickness as a key parameter to optimize sound isolation effectiveness. By strategically thickening the material in areas of high noise transmission and thinning it where less protection is needed, the design achieves superior noise blocking with reduced overall material consumption, thereby lowering manufacturing costs.
Solution Approach 2:
The soundproofing element employs composite material construction combining different materials with complementary acoustic properties. This composite approach enhances sound isolation performance while optimizing material usage efficiency, reducing the total amount of expensive specialized materials required compared to using a single thick material throughout.
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
Significantly reduces noise emission by encapsulating the technical space, minimizing sound radiation from all sides, including the front and rear, and allows for easy maintenance and assembly.
Implementation Method 1
The technical space is at least partially surrounded by a soundproofing element... providing effective sound insulation and damping by preventing sound propagation through reflection and absorption
Implementation Method 2
the bitumen mats convert vibrations into heat through internal friction
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a dishwashing machine, in particular a household dishwashing machine, having a box-shaped washing tank (2) for receiving items to be washed, having a base carrier (1, 1') whereupon the washing tank (2) is placed and having a technology space (15) for accommodating electrical components of the dishwashing machine that is arranged between a floor (14) formed on the base carrier (1, 1') and the washing tank (2), wherein the technology space (15) is at least partially surrounded by a sound proofing element (19, 19') designed as a three-dimensional formed component (19, 19').