PCB Holder with Recessed Fasteners and Pressure Block
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Solution Overview
Problem
Conventional testing devices for printed circuit boards (PCBs) face challenges in adjusting the PCB position, particularly in changing direction and supporting the center, leading to potential damage from probe disconnection and rebound.
Innovation Solution
A holder with a substrate featuring a primary recess, side-recesses, and a channel recess, equipped with fasteners and a pressure block, made from materials like polytetrafluoroethylene (PTFE), which securely fastens the PCB and accommodates cables, allowing for stable testing without probe damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the holder firmly fastens the PCB, then the PCB position is stable, but the position of the PCB cannot be adjusted and the center cannot be supported
Solution Approach 1:
The holder is divided into multiple recesses (first recess, second recess, third recess) positioned at different locations. Each recess independently fastens a specific region of the PCB, allowing the PCB to be securely held while still enabling positional adjustments by selecting different recess combinations for fastening.
2Ease of operation
If the probe contacts the testing points near the center of the PCB, then testing can be performed, but the PCB may be pressed down and bounce back hitting the probe causing damage
Solution Approach 1:
The holder provides localized support through specifically positioned recesses that fasten the PCB at strategic locations away from the center testing area. This creates stable support points that prevent PCB deformation and rebound during probing operations, protecting the probe from damage while enabling testing at various points including near the center.
3Device complexity
If conventional holders are used, then simple structure is maintained, but complex adjustments are required and testing efficiency is reduced
Solution Approach 1:
The holder with multiple strategically positioned recesses serves multiple functions: it fastens the PCB securely, provides adjustable positioning by selecting different recess combinations, supports the PCB during probing operations, and enables testing at various locations without requiring complex adjustments. This multi-functionality maintains structural simplicity while significantly improving testing efficiency.
Data Source
AI summary
A holder includes a substrate, at least one first fastener and a pressure block. The substrate includes a top surface, a primary recess recessed from the top surface, at least one first side-recess recessed from the top surface, wherein the first side-recess neighbors and communicates with the primary recess, and a channel recess recessed from the top surface, wherein the channel recess neighbors and communicates with the primary recess, and the first side-recess and the channel recess are positioned at opposite sides of the primary recess. The first fastener is disposed in the first side-recess, wherein the first fastener has a top substantially leveled with the top surface of the substrate. The pressure block is disposed in the channel recess, wherein the pressure block has a top substantially leveled with the top surface of the substrate.