Substrate Holding Structure With Hook Locking Arm
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing substrate holding structures lack reliability and adequate protection for the substrate, particularly in preventing movement beyond a predetermined position and minimizing interference with other components or tools.
Innovation Solution
A substrate holding structure featuring a cylindrical side wall with a protruding holding wall, press fit terminals, and a flexible arm portion with a hook to securely lock the substrate, along with a stopper to restrict movement, ensuring the substrate is firmly held and protected within an accommodating space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the substrate holding structure uses a simple casing without additional retaining mechanisms, then the device complexity is reduced, but the substrate cannot be reliably held and retained
Solution Approach 1:
The holding structure is segmented into multiple functional components: press fit terminals for electrical connection and positioning, arm portions with hook portions for mechanical retention, and a stopper portion for movement restriction. Each segment performs a specific function to collectively ensure reliable substrate retention without requiring a complex overall structure.
Solution Approach 2:
The press fit terminals, arm portions, and stopper portion are integrated into a unified holding structure where components are nested within the same casing. The arm portions extend from the holding wall, and the stopper portion is positioned within the accommodating space, creating a compact nested arrangement that maximizes retention functionality while minimizing structural complexity.
2Reliability
If the press fit terminals and arm portion protrude beyond the end surface of the side wall, then the substrate can be more securely held, but the substrate holding portion becomes vulnerable to damage from external interference
Solution Approach 1:
The hook portions of the arm portions are designed to engage with the substrate surface before final insertion is complete, creating a preliminary locking action that prevents the substrate from moving outward. This preliminary engagement ensures secure retention while keeping the arm portions positioned within the protected accommodating space, preventing external damage.
Solution Approach 2:
The retention mechanism transitions from linear protrusion to three-dimensional hook engagement. Instead of simple outward protrusion, the arm portions bend at right angles to form hook portions that engage the substrate from the side, creating retention in a different dimensional orientation that maintains security while avoiding external exposure.
3Reliability
If the arm portion is positioned far from the holding wall portion, then it can more effectively lock the substrate surface, but the structural integrity and protection of the arm portion is reduced
Solution Approach 1:
The arm portion is designed as a flexible yet strong element that can dynamically adjust its position during substrate insertion. The arm extends from the holding wall and can bend to engage the substrate, providing effective locking while maintaining structural integrity through controlled flexibility rather than rigid positioning.
Solution Approach 2:
The holding structure appears to use materials with optimized mechanical properties that combine strength and flexibility. The arm portions are constructed from materials that provide sufficient rigidity to maintain structural strength near the holding wall while allowing enough flexibility to effectively engage and lock the substrate surface at extended positions.
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
The structure effectively prevents substrate movement beyond a predetermined position, reduces the risk of damage, and simplifies assembly by using press fit terminals and an arm portion that do not protrude, thus enhancing protection and reducing manufacturing costs.
Implementation Method 1
a plurality of press fit terminals held by the holding wall portion, protruding toward an opening of the side wall portion, and pressedly inserted into holes of a substrate accommodated in the accommodating space
Implementation Method 2
a flexible arm portion protruding toward the opening from a position closer to the side wall portion than the press fit terminals of the holding wall portion, and having a hook portion configured to lock a surface on the opening side of the substrate
Implementation Method 3
a stopper portion that restricts movement of the substrate toward the holding wall portion side beyond a predetermined position
Implementation Method 4
the arm portion abuts the side wall portion in a state where a deformation amount of the arm portion is within an elastic deformation range when the arm portion is pressed toward the side wall portion
Data Source
AI summary
Disclosed is a substrate holding structure including: a cylindrical side wall portion that forms an accommodating space; a holding wall portion protruding inward of the accommodating space from the side wall portion; a plurality of press fit terminals held by the holding wall portion, protruding toward an opening of the side wall portion, and pressedly inserted into holes of a substrate accommodated in the accommodating space; and a flexible arm portion protruding toward the opening from a position closer to the side wall portion than the press fit terminals of the holding wall portion, have flexibility, and having a hook portion configured to lock a surface on the opening side of the substrate, wherein distal end positions of the press fit terminals and the arm portion are closer to the holding wall portion than an end surface on the opening side of the side wall portion.