Phase-Change Intermediate Joint for High-Tolerance Component Assembly
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Solution Overview
Problem
Existing methods for connecting electronic device components often require high manufacturing tolerances, which can be costly and complex, and may not ensure electrical isolation between conductive elements, affecting device performance.
Innovation Solution
Using an intermediate element that can change states from a liquid to a solid to provide a mechanical and structural bond between components with low initial tolerances, allowing for high-tolerance assembly while maintaining electrical isolation through insulating materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional connection methods (snaps, mechanical fasteners, adhesives) are used to connect housing components, then structural integrity is achieved, but manufacturing tolerances must be high which increases cost and complexity
Solution Approach 1:
The intermediate element utilizes phase transition (parameter change from liquid to solid) to enable connection. In liquid state, it flows to fill gaps and accommodate tolerance variations; in solid state, it provides structural integrity. This parameter change allows connection of components with relaxed tolerances while maintaining assembly strength.
Solution Approach 2:
An intermediate element is introduced between the first and second housing components to facilitate connection. This intermediary absorbs tolerance mismatches and enables joining of components that would otherwise require precise alignment, thereby reducing manufacturing complexity and cost.
2Reliability
If conductive elements are connected directly to ensure electrical continuity, then electrical performance is improved, but electrical isolation cannot be ensured which affects device performance
Solution Approach 1:
The intermediate element serves as an electrical insulator between conductive housing components. This intermediary prevents unwanted electrical contact while maintaining mechanical connection, ensuring electrical isolation without complicating the manufacturing process.
Solution Approach 2:
The intermediate element is made from composite or specially formulated material that combines mechanical bonding capability with electrical insulation properties. This allows a single material to fulfill multiple functions: structural connection and electrical isolation.
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 enables the assembly of components with high precision and structural integrity while reducing manufacturing complexity and ensuring electrical isolation, improving device performance and tolerance without requiring precise alignment or matching features on the components.
Implementation Method 1
an intermediate element that changes in state to connect two or more elements such that the resulting assembled component can be constructed with high tolerances
Data Source
AI summary
This is directed to connecting two or more elements using an intermediate element constructed from a material that changes between states. An electronic device can include one or more components constructed by connecting several elements. To provide a connection having a reduced or small size or cross-section and construct a component having high tolerances, a material can be provided in a first state in which it flows between the elements before changing to a second state in which it adheres to the elements and provides a structurally sound connection. For example, a plastic can be molded between the elements. As another example, a composite material can be brazed between the elements. In some cases, internal surfaces of the elements can include one or more features for enhancing a bond between the elements and the material providing the interface between the elements.