Removable Power Adapter Plug Locking Against Accidental Disconnection
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Solution Overview
Problem
Existing power adapters lack modularity and stability, particularly in accommodating different outlet configurations and preventing accidental disconnection of plugs.
Innovation Solution
A power adapter design featuring a removable plug with a locking mechanism that secures the plug in place using a rotatable shaft and pin system, allowing for easy exchange of plug types and preventing accidental disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a removable plug is provided for different outlet configurations, then adaptability is improved, but connection stability deteriorates due to risk of accidental disconnection
Solution Approach 1:
The power adapter is divided into two separable components: a body and a removable plug. This segmentation allows the plug to be exchanged for different outlet configurations while maintaining a stable connection through the locking mechanism during use.
Solution Approach 2:
The plug incorporates a rotatable shaft that enables dynamic switching between locked and unlocked states. Rotation of the shaft actuates the locking mechanism, allowing the plug to be securely fixed during operation but easily removable when needed.
2Reliability
If a locking mechanism is added to prevent accidental disconnection, then connection stability is improved, but device complexity increases
Solution Approach 1:
The locking mechanism utilizes a rotatable shaft that converts rotational motion into linear displacement of the locking element. This dynamic approach provides reliable locking with minimal structural complexity, as the same rotational component controls both the locking action and the plug position.
Solution Approach 2:
The locking mechanism is designed to be actuated by the user through simple rotation of the shaft, without requiring additional tools or complex operations. The mechanism self-locks when engaged, maintaining connection stability automatically once locked.
3Ease of operation
If a rotatable shaft locking mechanism is implemented, then ease of operation is improved for plug exchange, but manufacturing complexity increases
Solution Approach 1:
The rotatable shaft serves a dual function: it is the primary user interface for locking/unlocking and simultaneously drives the locking element through mechanical coupling. This eliminates the need for separate actuating mechanisms, simplifying manufacturing while maintaining ease of operation.
Solution Approach 2:
The shaft combines multiple functions into a single component: it acts as the user-operated control, the driving mechanism for the locking element, and part of the overall plug structure. This merging reduces the total number of parts and assembly steps required during manufacturing.
Data Source
AI summary
The present disclosure provides a power adapter including a body and a plug removably connected to the body. In one example, the plug has a second base defining a groove, a housing, and a prong rotatably mounted to the housing. In another example, the body has a tongue extending from a first base, which slides within the groove of the plug to prevent movement of the plug in a first direction. In one example, rotation of the prong actuates a pin held within the plug. For example, the pin recedes into the second base when the prong is in a first position and protrudes from the second base when the prong is in a second position. In one example, the pin prevents movement of the plug in a second direction, different from the first direction, when the prong is in the second position.