Electrical Socket Latching Mechanism for Secure Plug Connection

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing electrical sockets do not provide a reliable connection with electrical plugs, leading to inadvertent disconnection.

Innovation Solution

An electrical socket design featuring a main dielectric casing, terminal units with resilient clamping arms, and a latching mechanism with engaging projections and releasing units to securely hold and release the plug prongs, preventing accidental disconnection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a simple terminal unit without latching mechanism is used, then the device complexity is reduced, but the reliability of connection deteriorates leading to inadvertent disconnection

Engineering Contradiction:
Improveconnection reliabilityVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The latching mechanism is nested within the terminal unit structure. The engaging projection on the clamping arm fits into a recess on the prong, with the releasing unit nested within the housing. This nested arrangement provides a reliable latching function without significantly increasing overall device complexity or footprint.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The clamping arm with engaging projection automatically engages with the prong's recess upon insertion, providing self-latching functionality. The resilient nature of the clamping arm enables automatic engagement without requiring external actuation, thereby improving connection reliability while maintaining structural simplicity.

Inventive Principle:
Principle #25Self-service

2Stability of the object's composition

If a latching mechanism with engaging projection is added, then the connection stability is improved, but the ease of operation deteriorates due to requiring releasing unit actuation

Engineering Contradiction:
Improveconnection stabilityVSAvoidplug insertion ease
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The releasing function is extracted as a separate, dedicated unit within the terminal structure. The releasing unit with its actuating element is positioned to be accessible during plug removal, allowing users to easily disengage the latching mechanism by pressing the releasing unit, thus maintaining ease of operation despite the added latching feature.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The clamping arm is designed with resilient properties, allowing it to dynamically adjust during engagement and disengagement. The dynamic movement of the clamping arm配合 the releasing unit enables smooth operation - the arm naturally moves into the engaged position during insertion and can be easily pushed back to disengage when the releasing unit is actuated.

Inventive Principle:
Principle #15Dynamics

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 design effectively prevents inadvertent disconnection of electrical plugs by securely engaging and disengaging the prongs, ensuring a stable connection.

Implementation Method 1

The second terminal unit includes resilient first and second clamping arms adapted for insertion of the second prong of the electrical plug therebetween

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS7442891B2Electrical socket with latching mechanism
Publication Date: 2008.10.28 DONGGUAN XINUO APOLLO ELECTRICAL TECH CO LTD
  • US7442891B2 patent drawing
  • US7442891B2 patent drawing
  • US7442891B2 patent drawing

AI summary

An electrical socket includes a pair of terminal units and a latching mechanism. Each of the terminal units includes resilient first and second clamping arms. The latching mechanism includes a pair of engaging projections, each of which is provided on the second clamping arm of a respective one of the terminal units, and a pair of releasing units, each of which is operable so as to move the second clamping arm of a respective one of the terminal units away from the first clamping arm of a respective one of the terminal units.