Double-Layer Shell Electrical Connector With Staggered Soldering Legs
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Solution Overview
Problem
The structural stability of electrical connectors on circuit boards decreases as they are repeatedly used, due to the trend of downsizing electronic devices, leading to a need for enhanced structural strength.
Innovation Solution
A double-layer shell structure with staggered soldering legs is implemented, where the first shell has soldering legs adjacent to the insertion space and the second shell has legs positioned away from it, forming a configuration that enhances structural strength by distributing plug/unplug forces effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the electrical connector is downsized to fit smaller electronic devices, then the size of the electrical connector is reduced, but the structural stability and strength of the connector package on the circuit board decreases
Solution Approach 1:
The patent employs a nested shell structure where a first shell and a second shell are superposed to enclose the insulating body and terminals. The first shell has first soldering legs extending from its first end, while the second shell has second soldering legs extending from its second end. This nested configuration allows the connector to maintain a compact size while the multiple shells and staggered soldering legs provide enhanced structural strength and stability on the circuit board.
Solution Approach 2:
The patent utilizes a three-dimensional staggered arrangement of soldering legs where the first soldering legs and second soldering legs are positioned at different locations along the length of the connector. This spatial distribution of soldering legs in multiple dimensions enhances the structural strength and resistance to bending forces, allowing the downsized connector to maintain package stability on the circuit board despite reduced overall dimensions.
2Volume of moving object
If the electrical connector is downsized, then the device footprint is reduced, but the durability under repeated connection and disconnection cycles decreases
Solution Approach 1:
The nested double-shell structure provides enhanced mechanical support and protection for the internal components. The first shell and second shell work together to reinforce the connector body, while the staggered soldering legs distributed at both ends provide multiple attachment points that distribute mechanical stress during repeated plugging and unplugging operations, thereby improving durability.
Solution Approach 2:
The patent applies different structural characteristics to different parts of the connector. The shells are configured with specific thickness and reinforcement at critical areas, while the soldering legs are strategically positioned at the ends to maximize structural support where mechanical stress is highest during connection cycles. This localized optimization enhances overall reliability without significantly increasing the connector's overall size.
Data Source
AI summary
An electrical connector including an insulating body, a plurality of terminals disposed in the insulating body, a first shell sheathing the insulating body to form an insertion space for connecting to another electrical connector, and a second shell superposed on the first shell is provided. The first shell has at least one first soldering leg adjacent to the insertion space, and the second shell has at least one second soldering leg away from the insertion space.