Composite Device Enclosure Assembly for Multi-Material Joining
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Solution Overview
Problem
Existing methods for manufacturing electronic device enclosures struggle to combine multiple materials effectively, leading to increased costs, processing time, and material waste, as they often fail to achieve a desired combination of properties such as strength, appearance, toughness, and thermal conductivity.
Innovation Solution
A method involving the use of composite housings with pre-formed exterior and interior portions made from different materials, joined through techniques like welding or adhesive bonding, and featuring engagement features that allow for the assembly of device enclosures with desired mechanical and chemical properties while enabling electromagnetic transparency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional manufacturing techniques are used to combine multiple materials in device enclosures, then the desired combination of properties (strength, appearance, toughness, thermal conductivity) can be achieved, but production costs increase, processing time increases, and material waste increases
Solution Approach 1:
The device enclosure is divided into multiple components (first portion and second portion) made from different materials, each optimized for specific properties. This segmentation allows independent manufacturing of each portion using optimal processes, then joining them to achieve the desired combination of strength, appearance, toughness, and thermal conductivity without compromising production efficiency.
Solution Approach 2:
The patent employs composite construction by joining portions made from different materials (e.g., metal and polymer) to create a hybrid enclosure that exhibits superior combined properties. The first portion may provide structural strength while the second portion provides aesthetic appearance or thermal management, achieving multi-property optimization without traditional complex manufacturing.
2Reliability
If traditional manufacturing techniques are used to combine multiple materials in device enclosures, then the desired combination of properties can be achieved, but production costs increase
Solution Approach 1:
By segmenting the enclosure into separately manufacturable portions, each can be produced using the most cost-effective process for that material type and quantity, then joined using standardized connection methods. This reduces overall manufacturing cost compared to traditional techniques that require complex integrated processes.
Solution Approach 2:
The composite structure allows selection of materials based on cost-performance ratios for each specific function, rather than using expensive multi-material processes throughout. This optimized material selection and combination reduces overall production costs while maintaining desired property combinations.
3Reliability
If traditional manufacturing techniques are used to combine multiple materials in device enclosures, then the desired combination of properties can be achieved, but processing time increases
Solution Approach 1:
The first and second portions are pre-formed separately using optimal manufacturing processes for each material, with features prepared in advance for joining. This preliminary preparation of components and joining features enables faster final assembly compared to traditional techniques that require sequential processing of the entire enclosure.
Solution Approach 2:
Segmenting the enclosure allows parallel manufacturing of different portions, reducing total processing time. Each portion can be manufactured independently and simultaneously, then joined quickly using pre-prepared connection features, significantly reducing overall processing time compared to traditional sequential manufacturing.
4Reliability
If traditional manufacturing techniques are used to combine multiple materials in device enclosures, then the desired combination of properties can be achieved, but material waste increases
Solution Approach 1:
By dividing the enclosure into separate portions that can be manufactured using optimized processes for each material, material utilization is maximized for each component. This reduces scrap and waste compared to traditional techniques that may require excessive material for complex multi-material structures or generate waste during multi-step manufacturing processes.
Solution Approach 2:
The composite approach allows selection of materials and thicknesses optimized for each specific function and location, reducing overall material usage. Each portion uses only the material necessary for its specific requirements, minimizing material waste compared to traditional homogeneous or complex multi-material constructions.
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 reduces production costs and time, minimizes material waste, and allows for the creation of enclosures with tailored properties, enhancing both structural integrity and aesthetic appeal while maintaining electromagnetic functionality.
Implementation Method 1
joined through techniques like welding or adhesive bonding
Implementation Method 2
joined through techniques like welding or adhesive bonding
Data Source
AI summary
An element for an electronic device can include a metal exterior portion including a first material, an interior portion including a second, independently selected material, and an engagement feature formed on a surface defined by the exterior and interior portions. The engagement feature can mechanically engage a material molded to the surface. A method for forming an element for an electronic device can include joining a boss to a member, forming a feature in the member while orienting the member via the boss, and at least partially removing the boss to form the element. An electronic device can include a frame defining an interior volume of the device, a display component, a transparent cover positioned adjacent to the display component, and an encapsulating material at least partially surrounding the display component and joining the display component to the frame.