Silicon Part Assembly Using Elastic Intermediate Cylinder
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current assemblies of silicon-based parts secured by bonding are not durable and require precise, expensive application, while existing shape variants either break the silicon-based part or fail to securely assemble it with metal axes.
Innovation Solution
An assembly method using a continuous cylindrical intermediate part with a slot to absorb axial forces radially and uniformly, combined with elastic deformation means around the circular opening to absorb radial forces, allowing secure assembly without destructive forces or adhesives, utilizing ductile materials like metal or metal alloys.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bonding is used to secure silicon-based parts, then assembly is achieved, but durability is poor and application precision requirements are extremely high making it expensive
Solution Approach 1:
The patent replaces the chemical bonding system with a mechanical interference fit system. The intermediate part with expansion element creates a mechanical connection through radial expansion, eliminating the need for adhesive bonding and its associated precision application requirements.
Solution Approach 2:
The patent introduces an intermediate part as a mediator between the silicon-based part and the metal axis. This intermediate component with its expansion element facilitates the connection, absorbing dimensional variations and preventing direct stress concentration on the fragile silicon part.
2Reliability
If conventional intermediate part shapes are used, then assembly is attempted, but the silicon-based part breaks during assembly or insufficient security is achieved
Solution Approach 1:
The patent changes the geometric parameters of the intermediate part, specifically using a continuous cylindrical shape with controlled radial thickness. This geometry allows uniform radial expansion that distributes stress evenly, preventing localized stress concentrations that would cause breakage.
Solution Approach 2:
The intermediate part is designed with inherent elastic deformation capability that acts as a cushion during assembly. The material and geometry are selected to absorb assembly forces before they reach the silicon-based part, preventing breakage during the assembly process.
3Productivity
If axial driving force is applied directly to the silicon-based part, then assembly is achieved, but the part breaks due to concentrated forces
Solution Approach 1:
The patent applies local quality by concentrating the axial driving force on the intermediate part rather than the silicon-based part. The intermediate part's material and geometry are optimized to handle this localized force, while the silicon part experiences only distributed radial forces.
Solution Approach 2:
The intermediate part serves as a mediator that receives and redistributes the axial driving force. It converts the concentrated axial force into distributed radial expansion forces, protecting the silicon-based part from force concentration while maintaining assembly efficiency.
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 method securely joins silicon-based parts with metal components without breaking them, ensuring controlled precision and adaptability to manufacturing dispersions, while avoiding the need for axial forces and adhesives, thus enhancing durability and reducing costs.
Implementation Method 1
the intermediate part absorbs radially and uniformly by elastic and/or plastic deformation at least part of the axial driving force
Implementation Method 2
the intermediate part absorbs radially and uniformly by elastic and/or plastic deformation at least part of the axial driving force
Implementation Method 3
the part comprises openings forming elastic deformation means distributed around its circular opening intended to absorb said radial forces
Data Source
Figure 1
Figure 2
Figure 3~8
AI summary
The assembly (22) has an intermediate part (24) i.e. continuous cylinder, comprising a hole for receiving a member such that the intermediate part absorbs, radially in a uniform manner, a part of axial driving force of the member by elastic and/or plastic deformation. Pierced holes (26) forming elastic deformation units are placed around a circular aperture (28) for absorbing the radial force not absorbed by the intermediate part, in order to secure the assembly in a non-destructive manner. The intermediate part is made of material formed from metal or metal alloy base. An independent claim is also included for a method for assembling a member in a circular aperture of a silicon part.