Electronic Enclosure Assembly With Two-Shot Coupling Members
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Solution Overview
Problem
Existing methods for assembling electronic devices lack efficient integration of materials and processes to create a robust, aesthetically pleasing, and structurally sound enclosure that can withstand harsh manufacturing processes and chemicals, while maintaining electrical functionality and cosmetic appeal.
Innovation Solution
The electronic device is assembled using extruded sections joined by coupling members, where the sections are formed from conductive materials and the coupling members are created through a two-shot molding process, with the first shot providing structural support and the second shot forming cosmetic structures from materials resistant to harsh processes, and the edges are chamfered for aesthetic and tactile purposes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sections are formed from conductive materials and joined together, then electrical functionality is improved, but electrical isolation between sections deteriorates
Solution Approach 1:
The enclosure is divided into multiple separate sections that are joined by coupling members. The coupling members are formed from non-conductive materials (such as plastic or polymer) while the enclosure sections can be conductive. This segmentation allows electrical isolation between conductive sections while maintaining structural integrity and electrical functionality within each section.
Solution Approach 2:
Non-conductive coupling members serve as intermediary elements between conductive enclosure sections. These coupling members physically connect the sections while electrically isolating them, acting as a mediator that enables structural assembly while preventing harmful electrical interference between adjacent conductive sections.
2Shape
If a two-shot molding process is used for coupling members, then cosmetic appearance is improved, but manufacturing complexity increases
Solution Approach 1:
The coupling members are manufactured using a two-shot molding process where the first shot creates a non-conductive structural base and the second shot adds a conductive cosmetic layer with grain pattern. This local quality approach applies different materials and properties to different regions of the same component - the inner structural portion remains non-conductive while the outer visible surface has conductive appearance characteristics.
Solution Approach 2:
The coupling members are formed as composite structures through two-shot molding, combining two different materials in a single integrated component. The first material provides structural properties and electrical insulation, while the second material provides cosmetic appearance and conductive visual characteristics, creating a multi-functional composite component.
3Adaptability or versatility
If extruded sections are assembled with perpendicular extrusion axes, then design flexibility is improved, but grain visibility increases
Solution Approach 1:
The coupling members feature an asymmetric T-shaped cross-section with a top surface that is angled relative to the side surfaces. This asymmetric geometry allows the coupling member to bridge sections with perpendicular extrusion axes while the angled top surface helps minimize the visibility of grain patterns by creating light scattering angles that reduce apparent grain directionality.
Solution Approach 2:
The second shot in the two-shot molding process applies a material or surface treatment that modifies the optical properties of the coupling member's top surface. This can include applying a material with different refractive index, surface texture, or color characteristics that help mask or minimize the visibility of grain patterns from the perpendicular extruded sections.
4Strength
If coupling members span the entire width of the enclosure, then structural integrity is improved, but device complexity increases
Solution Approach 1:
The coupling members are designed to perform multiple functions simultaneously: they provide structural support spanning the enclosure width, electrically isolate adjacent sections, enable mechanical assembly through molded-in features, and provide cosmetic appearance. This multi-functionality reduces the need for separate components and simplifies the overall assembly process despite the enhanced structural capabilities.
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 approach results in a durable, aesthetically appealing electronic device enclosure that maintains electrical integrity and cosmetic appearance even after exposure to harsh manufacturing conditions, with minimized grain visibility and enhanced structural integrity.
Implementation Method 1
The coupling members may be formed using a two-shot molding process in which the first shot forms a structural portion of the coupling members, and the second shot forms cosmetic portions of the coupling members.
Data Source
AI summary
Various components of an electronic device housing and methods for their assembly are disclosed. The housing can be formed by assembling and connecting two or more different sections together. The sections of the housing may be coupled together using one or more coupling members. The coupling members may be formed using a two-shot molding process in which the first shot forms a structural portion of the coupling members, and the second shot forms cosmetic portions of the coupling members.