Foldable AC Adapter Jack with Snap-Fit Retention
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Solution Overview
Problem
Existing foldable 2-pin plug assemblies in consumer electronics require frequent plug replacements or modifications when using extension cords, leading to increased components and reduced compactness and safety when used at a distance from electrical outlets.
Innovation Solution
A uniquely configured extension cord jack and AC/DC adapter plug system that allows the plug to connect in a folded position, eliminating the need for plug replacements and enabling safe, compact, and extended use by providing a snap-fit engagement mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the plug is removed and replaced with a different type or extension cord, then compatibility with different outlets is improved, but device complexity increases due to multiple plug modules
Solution Approach 1:
The adapter body is designed with a universal jack that can accept various plug types (foldable 2-pin, fixed 2-pin, 3-pin, international adapters) while maintaining a consistent interface. This allows a single adapter body to serve multiple functions and兼容 different plug configurations without requiring multiple specialized adapter bodies.
2Ease of operation
If the plug is extended for use at a distance from the outlet, then usability is improved, but the compact shape and safety are compromised
Solution Approach 1:
The power connection system is segmented into two separate components: the adapter body (containing the jack and electrical components) and the plug (with prongs). This allows the plug to be positioned at different locations - either attached to the adapter body for compactness or separated for extended reach - while the adapter body remains stationary near the outlet, maintaining safety.
3Volume of moving object
If the plug prongs are folded down for compact storage, then portability is improved, but connection compatibility with standard outlets is lost
Solution Approach 1:
The adapter body acts as an intermediary device between the foldable plug and the wall outlet. When the plug prongs are folded down, the adapter body with its jack provides the connection interface, allowing the plug to maintain its compact folded state while still enabling electrical connection to standard outlets through the adapter's jack interface.
4Reliability
If a snap-fit engagement mechanism is added to secure the plug to the adapter, then connection reliability is improved, but device complexity increases
Solution Approach 1:
The snap-fit engagement mechanism is integrated into the existing jack structure of the adapter body. The jack housing incorporates snap-fit features (such as resilient arms or clips) that engage with corresponding features on the plug, combining the electrical connection function with the mechanical retention function in a single integrated component rather than adding a separate retention mechanism.
Data Source
AI summary
An electrical extension cord with a unique jack for use with an AC adapter assembly is presented. The jack includes a housing that defines a planar surface upon which a channel structure is positioned. The channel structure defines first and second channels which are sized and shaped to receive one of the pins of a 2-pin foldable plug of the AC adapter when the plug is in the folded state and contained within a recess of the AC adapter body.