Connector Shield Grounding via Direct Solder and Insert Molding
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Solution Overview
Problem
The reliability of connection between the pitch direction shield and the ground is poor in conventional connectors due to indirect grounding through the terminal direction shield.
Innovation Solution
The connector design includes a shell made of conductive material with pitch direction shields and terminal direction shields, where the pitch direction shield is insert molded into the socket body and the terminal direction shield is held by press-fit notches, and both are soldered to the ground pattern on the printed wiring board, enhancing the connection reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the pitch direction shield is grounded through the terminal direction shield, then the device complexity is reduced, but the reliability of ground connection deteriorates
Solution Approach 1:
The patent divides the grounding structure into separate independent paths: the pitch direction shield is directly soldered to the ground pattern, and the terminal direction shield is also directly soldered to the ground pattern. This segmentation eliminates the indirect grounding through the terminal direction shield, providing independent reliable ground connections for both shields while maintaining structural simplicity.
2Reliability
If the pitch direction shield is directly soldered to the ground pattern, then the reliability of ground connection is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent incorporates the pitch direction shield directly into the socket body through insert molding during the molding process. This preliminary action positions the shield accurately before soldering, pre-establishing the correct spatial relationship and reducing the precision requirements for subsequent soldering operations. The shield is held in a predetermined position relative to the connection recess before the grounding connection is established.
Data Source
AI summary
To provide a connector that enhances the reliability of connection between the ground and a shield constituting a shell. A socket constitutes the connector together with a header which is mounted on a different printed wiring board. The socket includes a socket body which is provided with a connection recess, a plurality of socket contacts which are held by the socket body, and a pitch direction shield and a terminal direction shield constituting the shell which surround the connection recess and which prevents electromagnetic noise from coming in and out. The pitch direction shield and the terminal direction shield are provided with terminals soldered to conductive pattern of the ground.