Daughter Card Locking Module for Vibration-Stable PCB Connectors
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Solution Overview
Problem
Existing automotive connectors fail to maintain high-speed and high-density signal integrity due to vibration-induced relative movement between mating connectors, leading to connector failure and signal degradation.
Innovation Solution
A locking module with attachment posts and pegs is integrated into board-mounted connectors to secure them to PCBs, preventing relative motion and ensuring stable connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If board-mounted connectors are used for high-speed signals, then signal transmission quality is improved, but vibration resistance deteriorates
Solution Approach 1:
The connector is divided into modular components including a locking module with separate locking members that can be independently engaged. This segmentation allows the signal transmission path to be optimized for high-speed performance while the locking mechanism provides independent vibration resistance through engagement with the PCB.
Solution Approach 2:
The locking module acts as an intermediary between the board-mounted connector and the PCB. It includes locking members that extend through the PCB and engage with corresponding features, creating a stable mechanical connection that prevents relative movement while allowing the connector to maintain its optimized signal transmission path.
2Stability of the object's composition
If cable connectors are used to resist vibration, then vibration resistance is improved, but signal transmission quality deteriorates
Solution Approach 1:
The invention merges the advantages of both board-mounted connectors and cable connectors by integrating a locking mechanism into the board-mounted connector design. The locking module combines the rigid PCB mounting of board connectors with the vibration resistance of cable connectors, while maintaining the high-speed signal transmission capabilities of board-mounted designs.
3Stability of the object's composition
If locking mechanisms are added to prevent relative movement, then connection stability is improved, but device complexity increases
Solution Approach 1:
The locking function is extracted as a separate locking module that can be independently designed and manufactured. This modular approach allows the locking mechanism to be optimized for stability without complicating the main connector body, and the locking module can be easily attached or removed based on application requirements.
Solution Approach 2:
The locking members are designed to be self-aligning and self-locking features that engage automatically when the connector is properly positioned on the PCB. This eliminates the need for complex actuation mechanisms or additional fastening operations, maintaining ease of assembly while providing robust vibration resistance.
Data Source
AI summary
A high-speed, high-density, vibration resistant interconnection system. The connector may be assembled from connector modules designed for a high-speed, high-density interconnection system operated in a controlled environment. These modules may be designed for mounting to PCBs in linear arrays that define connectors. The connectors may be adapted for use in a high-vibration environment through locking features integrated into the linear arrays. In a first connector, the locking features may be part of a locking module, integrated with other connector modules, such as signal modules, power modules and guidance modules. In a second, complementary connector, the locking features may be features in the PCB, such as holes, that engage the locking module of the first connector.