Cover-Fitted Connector Segmentation for Size Reduction
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Solution Overview
Problem
Conventional cover-fitted connectors require a larger protective cover to accommodate the through lock portion, leading to increased size and mounting space requirements, which is undesirable for minimizing the connector's overall size.
Innovation Solution
The design incorporates a connector housing with axisymmetric connecting portions and a cover with corresponding connected portions, featuring a cutout portion to expose the connector housing body and a lead-out opening that changes direction upon reversing, along with restriction and guide ribs and grooves for secure mating and disengagement, allowing the cover to cover only the necessary parts and minimize its size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the protective cover is made larger to cover the through lock portion with allowance, then the through lock portion is fully covered and protected, but the connector housing size and mounting space requirements increase
Solution Approach 1:
The connector housing is divided into two distinct parts: the connector housing body and the connecting portion. The cutout portion in the protective cover is positioned to expose the connector housing body while covering only the connecting portion, allowing selective coverage without increasing overall size
Solution Approach 2:
The connecting portion is extracted from the connector housing body and positioned at the outer portion. The protective cover is designed to cover only this extracted connecting portion through the cutout portion configuration, rather than covering the entire connector housing including the body
2Reliability
If the protective cover covers the entire through lock portion with allowance, then the through lock portion is protected, but the cover becomes larger and requires more mounting space
Solution Approach 1:
The connector housing is segmented into the connector housing body and the connecting portion. The protective cover's cutout portion is configured to expose the connector housing body while covering only the connecting portion, reducing the cover's required dimensions
Solution Approach 2:
The protective cover provides localized protection only where needed (the connecting portion) rather than uniformly covering the entire connector housing. The cutout portion creates a localized coverage area that matches the specific protection requirement
Data Source
AI summary
A cover-fitted connector includes a connector housing that houses a terminal connected to a terminal of an electric wire, and a cover that covers the electric wire pulled out from the connector housing. The connector housing includes a connector housing body, and a connecting portion connected to the connector housing body. The cover includes a cover body, a connected portion connected with the connecting portion at a time of mating the cover with the connector housing, and a cutout portion having an end portion positioned at a boundary between the connector housing body to cover the connecting portion and configured to expose the connector housing body outside the cover at the time of mating the cover with the connector housing.