Display Window Multi-Component Assembly for Front-Side Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing household appliance display windows face challenges in achieving high transparency and media-tight integration with the housing, often resulting in blurred edges, complex assembly, and limited space for rear insertion, which affects the optical appearance and sealing.
Innovation Solution
A multi-component process is used to produce a display window with a frame firmly connected to the see-through area, allowing assembly from the front and eliminating the need for complex in-mold processes, enabling a large viewing area and complete media-tight sealing without visible welds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the display window is inserted from the front into the receiving housing area and glued and/or welded to it, then the assembly is simple and accessible, but the edge area becomes blurred and the image appears unclean
Solution Approach 1:
The display window is divided into two distinct components: a frameless see-through area for optimal visual clarity and a separate frame structure for mounting and sealing. This segmentation allows the see-through area to remain completely clear while the frame handles all connection functions, eliminating the blur problem associated with edge bonding.
Solution Approach 2:
A frame acts as an intermediary element between the display window's see-through area and the receiving housing area. The frame provides the bonding surfaces for gluing and/or welding while keeping the see-through area itself free from bonding materials, thus maintaining image clarity while enabling simple assembly.
2Reliability
If the display window is assembled from behind the panel, then media-tight sealing can be achieved, but the space requirement behind the panel increases and assembly complexity increases
Solution Approach 1:
Instead of assembling the display window from behind the panel as is conventional, the invention inverts the assembly direction by inserting and securing the display window from the front side. The frame is designed with front-accessible bonding surfaces that allow gluing and/or welding without requiring rear panel space, thereby achieving media-tight sealing while minimizing space requirements behind the panel.
3Ease of manufacture
If the display window is clamped or latched without welding or gluing, then assembly is simple, but liquid tightness is not achieved
Solution Approach 1:
The frame integrates multiple functions into a single structure: it provides mechanical support, enables simple front-side assembly through clamping or latching, and simultaneously ensures media-tight sealing through integrated sealing elements or bonded joints. This merging of functions achieves both assembly simplicity and liquid tightness without requiring separate complex systems.
4Manufacturing precision
If a finished viewing window is back-injected with a film on the edge to cover the weld seam, then the appearance is improved, but the assembly work becomes very complex
Solution Approach 1:
The welding or gluing operations are extracted from the visible front area and relocated to the rear or side surfaces of the frame structure. This extraction eliminates the need for cosmetic covering films while maintaining clean visual appearance from the front, and significantly reduces assembly complexity by performing all bonding operations from accessible rear surfaces without requiring subsequent film injection and sealing steps.
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 solution provides a clear, uninterrupted display with enhanced optical appearance and improved sealing, reducing assembly complexity and space requirements while maintaining a flush and airtight connection.
Implementation Method 1
the frame (8) can be welded circumferentially and therefore completely media-tight to the housing part (3)
Implementation Method 2
The entire display window can be glued and/or welded to the receiving area of the bezel from the front
Implementation Method 3
The entire display window can be glued and/or welded to the receiving area of the bezel from the front
Data Source
Figure 1
Figure 2~5
Figure 4~3
AI summary
The appliance (1) has a display window (6) for program data and information and comprising an externally visible, partially transparent viewing area. The display window is manufactured in a multi-component process, and has a frame that is fixedly connected with the viewing area, where the frame is provided for fixing the display window to a panel (3) of a housing of the appliance. The frame is made from acrylonitrile butadiene styrene, and comprises centering ribs for alignment with the panel of the housing, where the frame is fixed to the panel of the housing by welding or gluing.