Connector Guide Prevents Oblique Insertion Damage

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Solution Overview

Problem

Conventional card connectors are prone to damage when a card-type electronic component is inserted obliquely, as the engaging portion can be damaged by the card's corner, leading to inaccurate accommodation and potential mechanical issues during ejection.

Innovation Solution

A connector design featuring a housing with a guide that prevents the card from being inserted obliquely beyond a predetermined amount, incorporating a locking portion and an ejection mechanism with a guide that directs the card's insertion and ejection, ensuring the locking portion remains undamaged and the card is accurately accommodated.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the engaging portion is positioned at the opening of the accommodating space to enable easy card ejection, then the card can be easily ejected, but the engaging portion is prone to damage when a card is inserted obliquely

Engineering Contradiction:
Improvecard ejectionVSAvoidengaging portion durability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

A guide structure is introduced as an intermediary element between the card and the engaging portion. The guide has a guiding surface that contacts the card's front end during oblique insertion, redirecting the card into the correct position before it reaches the engaging portion. This mediator prevents direct contact between the card's corner and the engaging portion, eliminating the damage risk while preserving easy ejection functionality.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If no guide structure is provided, then the device complexity is reduced, but the card accommodation accuracy deteriorates when oblique insertion occurs

Engineering Contradiction:
Improvestructure simplicityVSAvoidcard accommodation accuracy
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The guide structure performs preliminary action by correcting the card's insertion angle before the card reaches the engaging portion. The guiding surface contacts the card's front end during oblique insertion and redirects it into the correct position. This preliminary correction ensures accurate card accommodation without requiring complex adjustment mechanisms later in the insertion process.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS7658638B2Connector
Publication Date: 2010.02.09 JAPAN AVIATION ELECTRONICS IND LTD
  • US7658638B2 patent drawing
  • US7658638B2 patent drawing
  • US7658638B2 patent drawing

AI summary

A connector capable of preventing an engaging portion of an ejection mechanism from being damaged even when a card-type electronic component is inserted obliquely with respect to a card inserting/ejecting direction. A cover is mounted on a housing having a card accommodating portion for accommodating a memory card in a manner covering the card accommodating portion. The ejection mechanism ejects the memory card from the card accommodating portion. The ejection mechanism has a locking portion that is engaged with the memory card such that part of the memory card remains within the card accommodating portion during ejection of the memory card. The cover is provided with a guide for guiding a front end of the memory card in the card inserting/ejecting direction when the memory card is inserted into the card accommodating portion obliquely with respect to the card inserting/ejecting direction C.