Modular Electrical Connector Wire Cover for Precise Mating Depth
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Solution Overview
Problem
Existing electrical connectors face challenges in achieving controlled mating depths to improve signal integrity, particularly in modular connectors with internal modules that introduce additional tolerances.
Innovation Solution
The electrical connector system includes a connector housing with module cavities and terminal modules, a wire cover with a module blocking wall, and a locking lever to ensure proper mating depth and signal integrity, using guide and securing features to maintain terminal module position and prevent removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If tight mating tolerances are used to control mating depth, then signal integrity is improved, but manufacturing difficulty increases
Solution Approach 1:
The wire cover is installed on the connector housing before the terminal modules are inserted. This preliminary installation creates pre-formed blocking walls that will automatically control the mating depth when the terminal modules are loaded, eliminating the need for tight tolerances on the terminal module interfaces themselves.
Solution Approach 2:
The wire cover acts as an intermediary component between the connector housing and the terminal modules. It introduces blocking walls that serve as a mechanical stop to control mating depth, transferring the depth control function from the terminal module interface to the wire cover structure.
2Adaptability or versatility
If modular terminal modules are used, then adaptability and ease of assembly are improved, but mating depth control becomes more difficult
Solution Approach 1:
By installing the wire cover beforehand with pre-formed blocking walls, the system establishes depth control references before the modular terminal modules are assembled. This allows different terminal module configurations to be inserted while maintaining consistent mating depth control through the blocking walls.
Solution Approach 2:
The wire cover is divided into multiple blocking walls corresponding to different terminal module positions. Each blocking wall independently controls the mating depth for its associated terminal module, allowing modular assembly while maintaining precision control for each segment.
3Reliability
If blocking walls are added to prevent terminal module removal, then reliability is improved, but device complexity increases
Solution Approach 1:
The wire cover serves multiple functions: it protects the wires, organizes the wire exit, and creates blocking walls to prevent terminal module removal. By combining these functions into a single component, the design improves reliability without proportionally increasing complexity.
Solution Approach 2:
The blocking walls are merged into the wire cover structure rather than being separate components. This integration reduces the total number of parts while achieving the retention function, balancing reliability improvement with minimal complexity increase.
Data Source
AI summary
An electrical connector includes a connector housing including a mating end at a first end of the connector housing and a track at a second end of the connector housing. The electrical connector includes terminal modules received in module cavities of the connector housing. Each terminal module includes a module housing holding terminals in terminal channels, which are terminated to ends of wires. The electrical connector includes a wire cover coupled to the track. The wire cover includes a wire cavity receiving the wires from the terminal modules and directing the wires to a wire exit. The wire cover includes a module blocking wall positioned along the terminal modules to block removal of the terminal modules from the corresponding module cavities.