Flex Jumper Assembly for Plug Connector Cost Reduction
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Solution Overview
Problem
The high manufacturing costs associated with terminating cables to paddle cards in electrical connector systems for short-range connections, where the benefits of cable shielding may not justify the expense.
Innovation Solution
A plug connector assembly with a flex jumper assembly that includes paddle cards and a flexible circuit, eliminating the need for separate cable termination by securing the paddle cards within plug housings and allowing for flexible alignment and connection between receptacle connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cables are terminated to paddle cards of electrical connectors, then electrical shielding is provided to enhance signal performance, but manufacturing costs increase significantly
Solution Approach 1:
The patent extracts the cable termination function from the electrical connector assembly by using a separate flex circuit that connects to the paddle card through a receptacle connector, rather than terminating cables directly to the paddle card. This separation eliminates the expensive cable termination process while maintaining electrical shielding through the flex circuit's ground plane.
Solution Approach 2:
The patent introduces a receptacle connector as an intermediary component between the paddle card and the flex circuit. This mediator allows the flex circuit to provide electrical shielding and connection functions without requiring direct cable termination to the expensive paddle card, thus reducing manufacturing costs while maintaining signal integrity.
2Ease of operation
If flexible circuit is used between paddle cards, then alignment tolerance is improved and assembly is simplified, but structural support must be maintained
Solution Approach 1:
The patent uses a flexible circuit (thin film structure) to connect the paddle cards, which provides inherent flexibility to accommodate alignment tolerances during assembly. The flexible circuit maintains electrical connections while allowing for positional variations, and its thin film structure naturally provides the necessary flexibility without requiring additional structural support mechanisms.
Data Source
AI summary
A plug connector assembly includes first and second plug connectors each including a plug housing having a top wall, a bottom wall, a first side wall, and a second side wall forming a cavity. The side walls include a housing securing feature. The plug connector assembly includes a flex jumper assembly coupled between the plug connectors having a flex circuit extending between first and second paddle cards. The paddle cards each include a rigid substrate having a mating end and side edges extending to a flex circuit end. The rigid substrate includes a plug connector securing feature at the side edge engaging the housing securing feature to retain the paddle card in the corresponding plug housing. The flex circuit is flexible between the first and second paddle cards.