PCB Jack Connector with Segmented Contacts for Signal Integrity
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Solution Overview
Problem
Conventional audio jack connectors suffer from misalignment, wear, and poor signal transfer due to a single point of contact, leading to compromised audio quality and potential signal loss.
Innovation Solution
A PC board jack assembly with separated compartments and dual contact points on the support housing, featuring U-shaped and L-shaped contacts that provide uniform clamp pressure and engage a larger surface area of the audio plug, reducing signal loss and ensuring secure attachment to the board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a single point contact is used in conventional jack connectors, then the connector structure is simple, but the contact surface area is insufficient leading to poor signal transfer and compromised audio quality
Solution Approach 1:
The contact structure is divided into multiple segments: a tip contact for the plug tip and a sleeve contact for the plug sleeve, each providing additional contact surface area. This segmentation allows the connector to engage the plug at multiple points simultaneously, improving signal transfer without creating a overly complex assembly
Solution Approach 2:
The invention transitions from a single-point contact (zero-dimensional) to a multi-point contact system distributed in three-dimensional space around the plug. The tip contact engages the tip surface while sleeve contacts engage the sleeve surface at different angular positions, effectively utilizing spatial dimensions to increase total contact area
2Reliability
If greater force is applied by the contact to improve electrical connection, then the electrical connection quality improves, but the ground connector becomes off center and loses contact
Solution Approach 1:
The contact force is segmented and distributed across multiple independent contact points (tip contact and sleeve contacts) rather than concentrated at a single point. Each contact applies force independently to its respective engagement surface, preventing the ground connector from becoming off-center while maintaining reliable electrical connections
Solution Approach 2:
Different contact points apply localized force to specific areas of the plug: the tip contact applies force to the tip surface while sleeve contacts apply force to the sleeve surface. This localized force distribution ensures proper alignment is maintained at each contact point without compromising overall ground connector stability
3Reliability
If conventional electrical contacts with minimal contact surface are used, then the connector structure remains simple, but the audio signal transfer is compromised
Solution Approach 1:
The contact system is segmented into multiple contacts with extended surfaces that provide increased contact area with the plug. The tip contact provides a surface for tip engagement while sleeve contacts provide surfaces for sleeve engagement, collectively improving audio signal transfer through multiple parallel contact paths
Solution Approach 2:
The invention merges multiple contact functions into a single integrated contact assembly that engages both the tip and sleeve of the plug simultaneously. This unified structure provides improved signal transfer across all audio channels (tip-ring-sleeve) while maintaining a compact overall design
4Strength
If a cylindrical audio jack with multiple contacts is used, then the connector is robust and reusable, but the single prong receptacle creates misalignment and wear issues
Solution Approach 1:
The receptacle structure is segmented into multiple receiving elements corresponding to each contact point, allowing independent alignment adjustment for each contact. This segmentation enables precise alignment of the tip contact with the plug tip and sleeve contacts with the plug sleeve, reducing misalignment and wear while maintaining robust construction
Solution Approach 2:
Each contact point and its corresponding receptacle element are designed with local quality optimizations for alignment, such as tapered surfaces or positioning features at specific locations. This localized alignment precision throughout the connector assembly reduces wear and maintains reliability over repeated use
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 solution enhances audio and visual transmission quality by maintaining signal integrity and preventing trace lifting on the PC board, while being cost-effective and scalable for various plug sizes.
Implementation Method 1
an elastic portion extending from the contact
Implementation Method 2
uniform clamp pressure
Data Source
AI summary
Disclosed is a PC board jack assembly that reduces or eliminates signal loss with an audio plug. The jack assembly employs a support housing having a passageway sized to receive the audio plug with connectors to engage the opposite sides of a conventional audio jack. The jack assembly provides secure attachment to a PC board to avoid trace lifting.