Electrical Receptacle Connector with Coplanar Soldering Segments
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Solution Overview
Problem
Existing electrical connectors, such as USB Type-C, face challenges in preventing radio frequency interference and ensuring surface contact quality, while also requiring enhanced structural strength and flexibility for various orientations and component integration.
Innovation Solution
The electrical receptacle connector features a shielding shell with an insulation housing having a tongue portion that extends outside, terminals with protruding contact segments and coplanar soldering segments, a locking element for secure mounting on a circuit board, and a sealing ring for interference and liquid protection, all designed to comply with the USB Type-C standard for reversible and dual orientation connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the insulation housing is manufactured by insert-molding, then the manufacturing efficiency is improved, but plastic insulation material may be left over on the contact segments, worsening the surface contact quality
Solution Approach 1:
The contact segments are designed to protrude from the tongue portion before the insert-molding process begins. This preliminary positioning ensures that the molten plastic material cannot reach and contaminate the contact segments during molding, thereby preventing surface contact quality issues while maintaining manufacturing efficiency
Solution Approach 2:
The contact segments are extracted or separated from the main insulation housing structure by protruding from the tongue portion. This separation allows the contact segments to be positioned outside the mold cavity area, preventing plastic material from adhering to them during the insert-molding process
2Object-affected harmful factors
If the tongue portion extends outside the shielding shell, then radio frequency interference is prevented, but the structural complexity increases
Solution Approach 1:
The tongue portion is merged with the insulation housing as an integrated structure, extending from the housing to provide RF shielding while maintaining a unified design. This reduces the number of separate components needed and simplifies the overall structure despite the extended functionality
Solution Approach 2:
The tongue portion serves multiple functions: it provides structural support for the contact segments, extends the insulation housing for RF shielding, and positions the contact segments optimally. This multi-functionality reduces the need for additional separate components, thereby managing structural complexity
3Strength
If the locking element is added to secure the connector to the circuit board, then the structural strength is improved, but the device complexity increases
Solution Approach 1:
The locking element is combined with the shielding shell structure, integrating the locking function into the existing housing design. This integration allows the connector to be securely mounted to the circuit board while minimizing the addition of separate components and assembly steps
Data Source
AI summary
An electrical receptacle connector includes a shielding shell, an insulation housing and a plurality of terminals. The insulation housing is arranged inside the shielding shell and has a tongue portion extending to the outside of the shielding shell. The terminals are arranged at the insulation housing, and each terminal has a contact segment and a soldering segment. The contact segment is located on the tongue portion and protrudes from therefrom, the soldering segment extends from the insulation housing for a distance. The soldering segments are coplanar.