Adjustable 15A to 30A Adapter for Variable Outlet Spacing

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Solution Overview

Problem

Existing electrical adapters are incompatible with both standard 15 amp and 15 amp GFCI outlets, fail to adjust for variable spacing, and often overheat due to shared electrical load, leading to instability and frequent unplugging.

Innovation Solution

A double 15 amp male to 30 amp female electrical adapter with adjustable male terminals that can displace along an axis, featuring multiple housings with conductive terminal blades and pins, and wires coated with silicone for movement, allowing compatibility with both outlet types and reducing heat generation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If fixed male terminals are used in the adapter, then the adapter structure is simple, but the adapter is incompatible with both standard 15 amp and GFCI outlets due to spacing differences

Engineering Contradiction:
Improvecompatibility with outlet typesVSAvoidadapter structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The male terminal blades are made movable rather than fixed, allowing them to adjust their positions to accommodate different outlet spacing requirements. The blades can slide within slots in the housing to change spacing between terminals, enabling compatibility with both standard and GFCI outlets.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The adapter is divided into separate functional components: a housing with guide slots, movable terminal blades, and positioning mechanisms. This segmentation allows the terminal blades to independently adjust their positions while maintaining electrical connectivity.

Inventive Principle:
Principle #1Segmentation

2Volume of moving object

If two 15 amp male connections share an electrical load in a compact adapter, then the adapter size is reduced, but excessive heat is generated

Engineering Contradiction:
Improveadapter sizeVSAvoidheat generation
Core Design Contradiction:
Volume of moving objectVSTemperature

Solution Approach 1:

The adapter incorporates thermally conductive materials and heat dissipation features at specific locations where electrical connections are made. The housing material and terminal configurations are designed to locally manage heat generation from the electrical load sharing.

Inventive Principle:
Principle #3Local quality

3Adaptability or versatility

If fixed terminal spacing is used, then manufacturing is simpler, but the adapter cannot adjust for variable spacing between different outlet types

Engineering Contradiction:
Improveadjustability for spacingVSAvoidmanufacturing simplicity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The terminal blades are designed to move within the housing along defined paths, transforming a static structure into a dynamic one that can adapt to different spacing requirements while maintaining relatively simple manufacturing processes.

Inventive Principle:
Principle #15Dynamics

4Adaptability or versatility

If the adapter uses a stable fixed structure, then the connection is secure, but the adapter cannot be adjusted for different outlet configurations

Engineering Contradiction:
ImproveadjustabilityVSAvoidconnection stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The adapter combines movable terminal blades with a stable housing structure. The blades can adjust to different positions for compatibility with various outlets, while the overall adapter structure remains stable and secure when properly connected.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The terminal blades are designed to self-align and self-secure within the housing slots, providing stable connections without requiring additional complex locking mechanisms. The spring-loaded or friction-fit design allows the terminals to maintain reliable contact automatically.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11757240B1Variable spacing electrical adapter
Publication Date: 2023.09.12 CAMCO MFG LLC
  • US11757240B1 patent drawing
  • US11757240B1 patent drawing
  • US11757240B1 patent drawing

AI summary

An electrical adapter including one stationary, 15 amp terminal blade and ground pin and one movable, 15 amp terminal blade and ground pin, each in connection with a 30 amp terminal receptacle and terminal ground receptacle, respectively. The 15 amp terminal blades and ground pins provide a mechanism to convert an electrical signal between the 30 amp source and the 15 amp source, and the adjustable 15 amp terminal blade and ground pin provide functionality to account for the difference in distance between the outlets on a standard 15 amp outlet and a 15 amp ground fault circuit interrupter (GFCI) outlet.