Dishwasher with a control panel
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Solution Overview
Problem
The design options for metallic cladding of control panels in dishwashers are limited, particularly with larger cutouts, leading to instability and reduced durability, and existing solutions do not provide sufficient electrical connectivity for protecting electronics without a continuous metallic hood.
Innovation Solution
A dishwasher design featuring a metallic strip as cladding below a display window and C-shaped frames on transverse sides, with bridging contact bodies that are electrically conductive, eliminating the need for an overarching hood while ensuring electrical connectivity and protection against electrostatic charges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a continuous metallic hood is used to clad the control panel, then electrical connectivity and protection against electrostatic charges are ensured, but design options are limited and assembly becomes more difficult with larger cutouts
Solution Approach 1:
The continuous metallic hood is divided into separate metallic cladding elements (front cladding, side claddings, rear cladding) that can be independently positioned and assembled. This segmentation enables greater design flexibility for larger cutouts while maintaining electrical connectivity through conductive connections between the segmented elements.
2Ease of manufacture
If separate metallic cladding elements are used instead of a continuous hood, then design options are expanded and assembly is easier, but electrical connectivity and protection against electrostatic charges may be compromised
Solution Approach 1:
Conductive connectors or bridging elements are introduced as intermediaries between the separate metallic cladding elements. These connectors ensure reliable electrical connectivity and electrostatic protection while allowing the cladding elements to be assembled separately, thus maintaining both ease of manufacture and electrical reliability.
3Reliability
If a continuous metallic hood is used, then electrical protection is provided, but stability and durability are reduced with larger cutouts
Solution Approach 1:
The continuous metallic hood is segmented into multiple independent cladding elements that can be separately secured to the control panel. This segmentation improves stability by allowing each element to be independently fixed, reducing the risk of overall structure failure with larger cutouts while maintaining electrical protection through conductive connections.
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 design expands design options, enhances stability, and provides reliable electrical connections without the need for a continuous metallic hood, protecting electronics and preventing uncontrollable electrostatic discharges.
Implementation Method 1
the metallic cladding of the front and the surfaces facing the transverse sides are electrically conductively connected to one another via at least one bridging contact body
Data Source
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AI summary
A dishwasher (1), in particular a household dishwasher, with a washing container (2) located in a body (5) of the dishwasher for cleaning dishes, glasses, cutlery or similar items to be cleaned, wherein the washing container (2) can be closed at its front (V) by a door (3) which is upright in a closed position and movable to open, and wherein a control panel (8) is assigned to the door (3) in its upper area in the closed position, is designed such that the door (3) has a metallic cover (11) on its front side (V) in the closed position and further metallic covers (16) on surfaces (12) of the control panel facing the transverse sides, wherein the metallic covers (11) of the front (V) and (16) of the surfaces (12) facing the transverse sides are electrically connected to each other via at least one bridging contact element (17).