PCB Side Access Termination Pads for Wire Insertion
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Solution Overview
Problem
The manual insertion of individual wire conductors into printed circuit board holes is difficult, requiring precise alignment and often leading to unraveling of multi-strand conductors, which can cause electrical shorting.
Innovation Solution
The printed circuit board features notches near its edges that allow lateral insertion of wire conductors, with tapered slots and metal clips for secure soldering, eliminating the need for precise alignment and preventing conductor unraveling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wire conductors are inserted through holes from the front surface, then electrical connection is achieved, but alignment difficulty and conductor unraveling occur
Solution Approach 1:
The patent inverts the conventional insertion direction by providing access to the conductor at the side surface of the printed circuit board rather than the front surface. The notched opening allows the conductor to be inserted laterally into the hole, reversing the traditional front-to-back insertion approach and eliminating alignment difficulties and conductor unraveling issues.
Solution Approach 2:
The patent changes the insertion dimension from the front surface (2D plane) to the side surface (3D lateral access). By creating a notched opening at the side surface, the conductor can be inserted along a different spatial dimension, avoiding the alignment constraints of traditional front-surface insertion while maintaining reliable electrical connection.
2Reliability
If multi-strand conductors are inserted manually, then connection is established, but conductor unraveling causes electrical shorting
Solution Approach 1:
The patent applies preliminary action by providing a notched opening that guides and constrains the conductor during insertion. The notch geometry pre-configures the insertion path to keep multi-strand conductors bundled together, preventing unraveling before the conductor reaches the hole and establishes connection.
3Strength
If through-hole insertion method is used, then robust mechanical joint is achieved, but substantial bending of conductors is required
Solution Approach 1:
The patent inverts the insertion approach by accessing holes from the side surface through notched openings rather than from the front surface. This lateral access eliminates the need for substantial conductor bending while still achieving robust mechanical joints through soldering, as the conductor can be inserted straight into the hole from the side.
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 simplifies the attachment of wire conductors by enabling easy, simultaneous lateral insertion and secure retention, reducing the risk of electrical shorting and facilitating rapid assembly.
Implementation Method 1
The conductor may be inserted through a hole in the printed circuit board surrounded by a conductive pad which is soldered to the conductor
Data Source
AI summary
A printed circuit board provides lateral notches for receiving wire conductors in a lateral direction to be joined with printed circuit board traces by solder or an insulation displacement connector eliminating the need for laborious sequential insertion of conductors through printed circuit board holes.