High-Speed Connector Isolation Component for Signal Integrity
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Solution Overview
Problem
Existing high-speed connectors face challenges in maintaining optimal signal integrity due to inadequate contact pitch, requiring additional nonconductive spacers that are difficult to apply and impact assembly performance.
Innovation Solution
A preassembled nonconductive spacer is integrated into the connector shell during manufacturing, using a thin, nonconductive component such as Kapton tape or a molded part, to electrically and physically isolate contacts from the shell, ensuring optimal spacing and preventing high voltage failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If contacts are positioned closer together to reduce connector size, then connector compactness is improved, but signal integrity deteriorates due to inadequate contact pitch
Solution Approach 1:
A nonconductive spacer is introduced as an intermediary component between the signal contacts and the connector shell. This spacer provides electrical isolation and maintains optimal spacing between contacts, enabling signal integrity to be preserved even when contacts are positioned closer together. The spacer acts as a mediator that allows the system to achieve both compactness and reliable signal transmission.
2Reliability
If a nonconductive spacer is inserted into the shell after contacts are positioned, then signal integrity is improved, but assembly complexity increases and field application becomes difficult
Solution Approach 1:
The nonconductive spacer is pre-assembled to the connector shell during manufacturing before the connector is shipped to the customer. This preliminary action ensures that the spacer is already in place when contacts are terminated and positioned, eliminating the need for difficult field assembly operations. The spacer is strategically positioned and secured to the shell interior surface, creating a prepared structure that simplifies subsequent contact installation while maintaining optimal signal integrity.
3Reliability
If additional nonconductive spacer components are included, then signal integrity is improved, but manufacturing cost and assembly time increase
Solution Approach 1:
The nonconductive spacer is integrated with the connector shell as a single pre-assembled unit during manufacturing. By combining the spacer application with the shell assembly process rather than treating them as separate steps, the overall assembly time is reduced. The spacer is applied to the shell interior surface in a manner that allows subsequent contact installation to proceed efficiently, merging multiple functions into a streamlined manufacturing process that maintains signal integrity while improving productivity.
Data Source
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AI summary
An assembly (10) for terminating a high speed cable (60). The assembly (10) includes a shell housing (12) having a mating end (20) and a conductor receiving end (22). A mating portion (24) extends from the mating end (20). The mating portion (24) has a contact receiving opening (23) with an inside wall (25) which extends circumferentially around the opening (23). A crosstalk shield (14) is provided in the shell housing (12). Contacts (63) are positioned in the contact receiving opening (23) of the shell housing (12). The contacts (63) terminate high speed conductors (61) of the high speed cable (60). A nonconductive component (72) is provided on the inside wall (25) in the mating portion (24) of the shell housing (12). The nonconductive component (72) electrically and physically isolates the contacts (63) from the shell housing (12).