Rotatable Power Supply Plug with Positioning Grooves

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Solution Overview

Problem

Existing power supplies with detachable plugs are inconvenient due to the need for multiple adapters and fixed plugging directions, which can cause deformation and hinder placement, especially when the device's orientation changes.

Innovation Solution

A power supply with a detachable multi-directional plug that allows for easy assembly and disassembly, featuring a braking ring with positioning grooves for metallic terminals, enabling multi-directional rotation without the need for removing the plug, ensuring good electrical conductivity and reduced wear.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the plug is fixed to the wall with a fixed plugging direction, then the structure is simple, but the adaptability is poor and deformation occurs when the plugging direction does not match the wire arrangement

Engineering Contradiction:
Improveplugging direction adaptabilityVSAvoidplug structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The plug is designed to be rotatable relative to the power supply body through a docking space, allowing the plugging direction to be dynamically adjusted to match different wire arrangement directions and device orientations, resolving the contradiction between fixed structure and adaptability requirements

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The plug assembly is segmented into separable components (plug head and base) that can be independently positioned and rotated, enabling flexible directional adjustment while maintaining a relatively simple overall structure

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If the plug is removed and rotated to change plugging direction using sliding connection, then the plugging direction can be changed, but the operation becomes inconvenient and time-consuming

Engineering Contradiction:
Improveplug rotation convenienceVSAvoidtime to change plugging direction
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The plug can be rotated in place within the docking space without complete removal, enabling quick directional changes. The snap block and release button mechanism allows for rapid detachment and reattachment, significantly reducing the time and effort required to change plugging direction compared to traditional sliding connection methods

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If the plug is completely detached to change direction, then the plug can be repositioned, but the assembly and disassembly process becomes complex and troublesome

Engineering Contradiction:
Improveplug repositioning capabilityVSAvoidassembly and disassembly complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The plug assembly is divided into a plug head and base that can be separately manipulated. The base with positioning grooves and the plug head with corresponding positioning protrusions create a simple yet effective repositioning mechanism that reduces assembly complexity while maintaining full repositioning capability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The plug can be dynamically repositioned by rotating it to different angles within the docking space and securing it at the desired orientation using the snap block mechanism, eliminating the need for complete disassembly and complex reassembly procedures

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP2615701B1Power supply with detachable multi-directional plug
Publication Date: 2016.06.01 DELTA ELECTRONICS INC(CN)
  • EP2615701B1 patent drawingFigure 1
  • EP2615701B1 patent drawingFigure 2
  • EP2615701B1 patent drawingFigure 3

AI summary

A power supply (1) includes a plug (20) including a base (21) having an accommodating space (210). Two conductors (30) are provided in the accommodating space (210). A positioning cover (40) connects a body (10) and further covers the accommodating space (210). The positioning cover (40) is provided with guiding slots (41), and a braking ring (50) is arranged between the conductors (30) and the positioning cover (40). The interior edge of the braking ring (50) is provided with a plurality of positioning grooves (51), and the plug (20) can rotate on the body (10). Conductive connecting terminals (11) slide in the guiding slots (41) and are positioned in the positioning groove (51) to be in contact with the conductors (30).