Elastic Locking Assembly for Brittle Silicon Parts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current assembly methods for silicon-based parts with little or no plastic domain are either destructive or insufficiently secure, particularly when using metal axes, leading to breakage or inadequate bonding.
Innovation Solution
A system that uses an intermediate metal or metal alloy part with elastic locking devices to securely join silicon-based parts without glue, utilizing cantilever arms and corresponding geometries to elastically lock the assembly, ensuring precise and non-destructive attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If bonding is used to secure silicon-based parts, then assembly precision is maintained, but manufacturing cost increases due to extremely fine application requirements
Solution Approach 1:
The patent replaces the chemical bonding system with a mechanical locking system using resilient arms. The arms deform elastically during assembly and then lock the silicon-based part in place through their resilient properties, eliminating the need for precision bonding operations while maintaining secure attachment.
Solution Approach 2:
The patent changes the assembly mechanism from chemical bonding to elastic deformation. The resilient arms utilize their elastic properties to adapt to the silicon part during assembly, then maintain secure locking through their deformed state, providing a more manufacturable solution that reduces precision requirements.
2Strength
If conventional assembly methods are used for silicon parts with metal axes, then structural strength is achieved, but the silicon part breaks due to destructive forces
Solution Approach 1:
The resilient arm acts as an intermediary element between the metal axis and the silicon-based part. It provides a compliant connection that adapts to the silicon part during assembly, distributing forces evenly and preventing the concentrated stresses that cause breakage, while still achieving secure structural attachment.
Solution Approach 2:
The patent changes the assembly mechanism from rigid force application to elastic deformation. The resilient arms deform elastically during assembly to accommodate the silicon part, then maintain secure locking through their deformed state, providing a more manufacturable solution that reduces precision requirements.
3Reliability
If resilient arms with elastic locking are used to assemble silicon-based parts, then part breakage is prevented, but assembly precision may be compromised
Solution Approach 1:
The resilient arms provide a dynamic assembly process where the arms deform elastically during insertion and then lock into a stable final position. This dynamic behavior allows the arms to self-adjust and self-align during assembly, maintaining precision without requiring extremely tight tolerances in the silicon part itself.
Solution Approach 2:
The resilient arms perform self-alignment and self-positioning during assembly through their elastic deformation. As the arms are inserted and deformed, they naturally seek their equilibrium locked position, providing self-correcting functionality that maintains assembly precision without requiring external precision control mechanisms.
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 solution allows for secure assembly of silicon-based parts with ductile materials without destructive forces, maintaining precision and preventing breakage, while being applicable in various fields like watchmaking, aeronautics, and jewelry.
Implementation Method 1
an elastic locking device (15) comprising an arm (17) mounted cantilever from a base (19) attached to the first level (6) of the intermediate part (7) in order to secure the part (5) - intermediate part (7) - member (3) assembly
Implementation Method 2
the arm (17) of each elastic locking device (15) comprises a blade elastically bent by the member (3)
Data Source
Figure 1~4
Figure 5~7
Figure 6
AI summary
The invention relates to an assembly system (1, 21, 41, 61, 81) of a component (3, 23, 43, 63, 83) in a first material in the opening (4, 84) of a part (5, 25, 65, 85) in a second material having little or no usable plastic domain by means of an intermediate part (7, 27, 47, 67, 87) in a third material mounted between said component and said part. According to the invention, the part (5, 25, 65, 85) is received against a first level (6) of the intermediate part (7, 27, 47, 67, 87) and is elastically locked onto a second level (8) of the intermediate part (7, 27, 47, 67, 87) by the member (3, 23, 43, 63, 83) in order to make the assembly member (3, 23, 43, 63, 83) - intermediate part (7, 27, 47, 67, 87) - part (5, 25, 65, 85) fixed together. The invention relates to the field of watch parts.