Low-Height Connector With Recessed Socket For Soldering Strength
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Solution Overview
Problem
Existing connectors face challenges in achieving a low-height design while maintaining sufficient soldering strength and fitting workability, as short soldering terminals on header holding fixtures compromise bonding strength, and matching terminal lengths can lead to reduced fitting workability due to smaller tapers.
Innovation Solution
The connector features recessed portions on the socket molded article to prevent interference between header holding fixtures and socket, with soldering terminals of equal length to header contacts, and using the same components for header holding fixtures and contacts, and a tapered or R-shape recessed design to ensure strength and workability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the soldering terminals of header holding fixtures are shortened to achieve a low-height connector, then the height of the connector is reduced, but the soldering strength is insufficient
Solution Approach 1:
The invention introduces recessed portions on the socket molded article that extend in the thickness direction (vertical dimension), creating a three-dimensional space that accommodates the soldering terminals of header holding fixtures. This allows the terminals to have sufficient length for strong soldering while keeping the overall connector height low, as the terminals are positioned within the recessed spaces rather than extending horizontally.
2Strength
If the soldering terminals of header holding fixtures are lengthened to ensure soldering strength, then the soldering strength is improved, but the fitting workability is deteriorated due to smaller tapers
Solution Approach 1:
By creating recessed portions that extend in the thickness direction of the socket molded article, the invention provides a vertical space where long soldering terminals can be positioned without interfering with the horizontal fitting operation. The inviting shape with appropriate taper can be maintained on the outer surfaces for good fitting workability, while the recessed portions internally accommodate the extended terminals for strong soldering.
3Strength
If the same length is used for soldering terminals of header holding fixtures and header contacts, then the soldering strength is improved, but the inviting shape of socket sacrifices fitting workability
Solution Approach 1:
The invention segments the socket molded article by introducing recessed portions that create distinct functional zones: outer regions with inviting shapes for fitting operations and inner recessed regions for accommodating soldering terminals. This segmentation allows different parts of the socket to serve different purposes - the outer surfaces maintain tapered inviting shapes for good fitting workability, while the recessed portions provide space for long soldering terminals to achieve strong soldering.
Data Source
AI summary
A connector that electrically connects circuit boards to each other by fitting a header and a socket to each other, the connector including: header holding fixtures for holding the header to the circuit board; and a socket molded article as a molded article of the socket, wherein recessed portions with a recessed shape are formed on the socket molded article so that soldering terminals of the header holding fixtures cannot interfere with the socket molded article when the header and the socket are fitted to each other.