Spring Biased CPA Housing Assembly for Secure Connector Locking

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Solution Overview

Problem

Existing electrical connector housing assemblies require cumbersome and skill-dependent methods for securing and releasing connections with mating connectors, lacking ease and reliability.

Innovation Solution

A housing assembly with a spring-biased connector position assurance element (CPA) and actuator that transitions from a locking to a release position, facilitating easy removal of the mating connector while ensuring secure locking through a spring-biased mechanism integrated into the housing, preventing unintentional disconnection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a CPA element is used to secure the connection, then connection reliability is improved, but operation complexity increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidoperation complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The CPA element is spring-biased to automatically return to the locking position after being actuated, eliminating the need for manual resetting operations. The spring mechanism provides self-service by automatically restoring the locking state, thereby improving ease of operation while maintaining connection reliability

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The CPA element transitions from a static locking mechanism to a dynamic spring-biased system that can automatically move between locked and unlocked states. This dynamic behavior allows the CPA to respond automatically to actuation forces and return to its biased position, reducing operational complexity

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If a spring-biased CPA mechanism is implemented, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improveease of connector removalVSAvoidmechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The spring mechanism is integrated directly into the CPA element itself, merging the biasing function with the locking element. This consolidation eliminates the need for separate spring assemblies and mounting structures, reducing overall device complexity while providing automatic resetting functionality

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The spring acts as an intermediary element that mediates between the actuation force and the CPA element's locking position. By introducing this intermediate mechanical element, the system achieves automatic resetting without requiring complex control systems or multiple components

Inventive Principle:
Principle #24Intermediary (Mediator)

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 provides a safe and reliable connection by automatically resetting to the locking position, ensuring the mating connector is securely fixed until intentionally released, enhancing handling ease and safety.

Implementation Method 1

at least one elastically deflectable spring member may be integrated in the CPA for generating the spring bias

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3979433A1Housing assembly with a spring biased cpa
Publication Date: 2022.04.06 TE CONNECTIVITY GERMANY GMBH
  • EP3979433A1 patent drawingFigure 1~2
  • EP3979433A1 patent drawingFigure 3~4
  • EP3979433A1 patent drawingFigure 5

AI summary

In order to provide a housing assembly with increased safety for a connection of the housing assembly (1) with a mating connector (7) and in order to facilitate the removal of the mating connector (7) from the housing assembly (1), the invention provides a housing assembly (1) for an electrical connector (2), the housing assembly (1) comprising a housing (3) having a receptacle (5) for receiving at least parts of a mating connector (7), at least one connector position assurance element (CPA) (17) for securing the position of the mating connector (7) in the receptacle (5), and at least one CPA-actuator (23) that is operationally coupled to the CPA (17) for driving the CPA (17) from a locking position 19 to a release position (21), wherein in the release position (21), the CPA (17) is moved away from the receptacle (5) in relation to the locking position (19), and wherein the at least one CPA (17) is spring biased into the locking position (19).