Drawer Front Panel Encircling Controls to Block Dirt Ingress
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Solution Overview
Problem
Laundry treatment appliances face issues with dirt and contaminant particle collection around the operation element, leading to reduced visual appeal and potential contamination of internal components, which affects washing efficiency and component durability.
Innovation Solution
The drawer frontal panel is designed to encircle the operation element in its fully inserted position, sealing gaps and preventing dirt entry while maintaining a high-quality aesthetic appearance, using a shaped portion that follows the contour of the operation element and flushes with the machine front panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a thin inlay with a hole for operation element passage is used, then the user interface can display aesthetic symbols and functions, but clearances are created that collect dirt and dust, affecting visual appearance and allowing contaminant entry
Solution Approach 1:
The inlay is merged with the drawer frontal panel to form a single integrated component. The shaped portion of the drawer frontal panel encircles the operation element, eliminating the clearance between separate components while maintaining the display function of the inlay.
Solution Approach 2:
The inlay is positioned within the shaped portion of the drawer frontal panel, creating a nested structure where the inlay is housed within the encircling shaped portion, which itself is integrated into the drawer frontal panel. This nested arrangement eliminates gaps while maintaining aesthetic display.
2Ease of manufacture
If separate components (inlay, drawer panel, user interface) are used, then manufacturing and assembly are simplified, but clearances between components create dirt collection spaces and contaminant passages
Solution Approach 1:
The inlay and drawer frontal panel are merged into a single integrated component, reducing the number of separate parts from three (inlay, drawer panel, user interface) to two (integrated drawer panel with inlay, user interface). This maintains ease of manufacture while eliminating the clearance between the inlay and drawer panel that caused dirt collection.
3Object-affected harmful factors
If the drawer frontal panel encircles the operation element, then dirt collection and contaminant entry are prevented, but the complexity of the drawer frontal panel shape increases
Solution Approach 1:
The drawer frontal panel is segmented into functional zones: a main body portion and a shaped portion that encircles the operation element. This segmentation allows the encircling function to be achieved with a relatively simple geometric addition rather than a completely complex custom shape.
Solution Approach 2:
The encircling shaped portion is localized to the specific region around the operation element, while the rest of the drawer frontal panel maintains a simple, standard shape. This local modification approach minimizes overall complexity while achieving the dirt prevention function where it is most needed.
Data Source
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AI summary
Laundry treatment appliance (2), comprising an operation element (40), a drawer (56) and an opening (58) configured for insertion/extraction of said drawer (56), wherein said drawer (56) comprises a drawer frontal panel (50) that comprises a shaped portion (52) which in a fully inserted position of said drawer (56) at least partially encircles said operation element (40).