Adjustable Plug-to-Socket Keying Device for Universal Connector Compatibility
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Solution Overview
Problem
Electrical connectors are often specific to particular devices, leading to incompatibility issues when incorrectly used, which can damage devices and result in malfunctions or incorrect signal exchange, and there is a need for a universal connector that prevents accidental incompatible connections while allowing connection to multiple devices.
Innovation Solution
A plug-to-socket keying device with an adjustable alignment key system that includes a housing with a detent portion and a spring-biased alignment key, allowing for rotational index positions to ensure compatibility by configuring the angular orientation of the mating end, preventing accidental connections while allowing for multiple device compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a universal electrical connector is produced, then adaptability and ease of manufacture are improved, but the risk of incompatible connection increases
Solution Approach 1:
The patent employs asymmetric alignment keys with specific rotational orientations that must match corresponding recesses in the receiving device. This asymmetric geometry prevents incompatible connectors from being physically connected, as the keys will not align properly unless the connector is specifically designed for that device type. The asymmetric design maintains universal physical compatibility while ensuring electrical compatibility through proper angular orientation.
Solution Approach 2:
The alignment keys are pre-configured to specific rotational positions before connection occurs. This preliminary configuration ensures that only connectors with matching key orientations can be physically connected. The system performs compatibility verification in advance through the mechanical keying mechanism, preventing incompatible connections before electrical contact is established.
2Reliability
If device-specific electrical connectors are used, then connection safety is improved, but adaptability and manufacturing complexity worsen
Solution Approach 1:
The patent creates a universal connector design where a single connector type can safely connect to multiple different device types. The alignment keys are configured with specific angular orientations that allow the same connector housing and electrical contacts to be compatible with various devices. This multi-functionality is achieved by making the alignment keys adjustable or by providing multiple key configurations within the universal connector design.
Solution Approach 2:
The connector design separates the alignment function from the electrical connection function. The alignment keys are distinct mechanical elements that can be independently configured, while the electrical contacts remain universal. This segmentation allows the same electrical connector to work with multiple devices by simply changing or adjusting the alignment key configuration without redesigning the entire connector.
3Adaptability or versatility
If alignment keys are made adjustable, then adaptability is improved, but device complexity increases
Solution Approach 1:
The alignment keys are designed to be rotatable or adjustable to different angular positions, transforming a static keying mechanism into a dynamic one. This allows the same physical connector to be configured for different devices by rotating the alignment key to the appropriate angle. The dynamic capability is achieved through simple rotational movement constrained by detent positions or indexing mechanisms, keeping the added complexity minimal while maximizing adaptability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively prevents accidental incompatible connections while enabling electrical connection to various electronic devices, ensuring device safety and compatibility, and facilitating the reuse of connectors by providing a universal electrical connector.
Implementation Method 1
A spring may be arranged to bias the alignment key toward the set position
Data Source
AI summary
A plug-to-socket keying device includes a housing having an adjustment recess having a detent portion. A plurality of electrical contacts are carried by the housing. An alignment key is provided with a mating end. An indexing segment is connected to the mating end, which is shaped to define a plurality of rotational index positions. The alignment key is axially movable relative to the adjustment recess into a set position. The indexing segment is movable from the detent portion so as to allow rotation of the alignment key relative to the housing. A spring is arranged to bias the alignment key toward the set position. The alignment key is settable to a chosen one of the plurality of rotational index positions by moving the alignment key into its adjustment position and rotating the alignment key to the chosen rotational index position.