Connector Movable Housing Locking Part Protection

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Solution Overview

Problem

Conventional connectors face issues with permanent deformation and damage of locking parts due to temporary locking mechanisms, which can lead to unstable locking and exposure to peripheral interference.

Innovation Solution

A connector design featuring a pair of housings with a deflectable locking part that is restored and protected by a protection part after fitting, ensuring the locking part is not deflected when fitting is complete, preventing deformation and damage, and allowing for stable temporary locking of the movable housing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the locking part is greatly exposed from the movable housing in a restored state, then the locking part can be easily operated, but damage may occur in the locking part

Engineering Contradiction:
Improveease of operationVSAvoiddamage
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

A protective cover made of flexible material is provided to cover the locking part when it is in the restored state. The protective cover can elastically deform to allow the locking part to move between locked and unlocked positions, while protecting the locking part from damage when it is exposed.

Inventive Principle:
Principle #30Flexible shells and thin films

2Ease of operation

If the locking part is deflected to release temporary locking, then the movable housing can be fitted, but permanent deformation may occur in the locking part

Engineering Contradiction:
ImprovefittingVSAvoidstable locking
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The locking part is designed with preliminary elastic deformation capability, where the deflectable portion is pre-configured to bend within elastic limits during the fitting process. The protective cover is also positioned in advance to guide the locking part's movement and prevent excessive deflection that could cause permanent deformation.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If the locking part is exposed to perform temporary locking, then the locking function is effective, but the locking part is vulnerable to peripheral interference

Engineering Contradiction:
Improvetemporary lockingVSAvoidperipheral interference
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

A flexible protective cover is provided that can elastically deform to accommodate the locking part's movement during locking and unlocking operations. The cover protects the locking part from peripheral interference while maintaining its functionality.

Inventive Principle:
Principle #30Flexible shells and thin films

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 permanent deformation and damage of the locking part while ensuring stable temporary locking of the movable housing, enhancing fitting workability by dispersing the fitting force across different timings for multiple movable housings.

Implementation Method 1

a deflectable locking part locked to the frame is provided in the movable housing

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS9502812B2Connector having movable housing within frame
Publication Date: 2016.11.22 YAZAKI CORP
  • US9502812B2 patent drawing
  • US9502812B2 patent drawing
  • US9502812B2 patent drawing

AI summary

A connector includes a pair of connector housings, a fitting part provided in one connector housing of the pair of connector housings, and a fitted part provided in another connector housing and to which the fitting part is fitted. The fitted part has a frame and a movable housing. The movable housing is arranged within the frame, and is movable in a fitting direction. Timing to complete fitting between the movable housing and the fitting part is different from timing to complete fitting between the frame and the fitting part. The frame and the movable housing have a locking part which temporarily locks the movable housing within the frame. The locking part is restored by releasing the temporary locking in a state in which the fitting between the fitting part and the movable housing is completed. A periphery of the restored locking part is covered with a protection part.