Card Connector Anti-Run Buckle Convexity Locking Mechanism

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Solution Overview

Problem

Conventional card connectors are prone to accidental disengagement of cards due to violent shocks or wobbling, as the buckle portion of the anti-run buckle can disengage from the card's concavity.

Innovation Solution

A card connector design featuring a housing with a base plate, slide member, and anti-run member, where the anti-run member includes a buckle portion and extension piece that is blocked by a convexity on the base plate, preventing disengagement by aligning the extension piece with a groove and blocking its movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional anti-run buckle is used to secure the card, then the card can be held in the connector, but the buckle portion can disengage from the card's concavity under violent shocks or wobbling, causing accidental disengagement

Engineering Contradiction:

Improvecard retention reliabilityVSAvoidaccidental disengagement due to shock

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a convexity structure on the base plate that blocks the backward movement of the buckle portion, adding a dimensional constraint in the longitudinal direction. This prevents the buckle from disengaging from the card's concavity even under shock or wobble, as the convexity physically stops the buckle's rearward motion path.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The convexity on the base plate acts as an intermediary element between the buckle portion and the card connector housing. It mediates the interaction by providing a blocking surface that prevents the buckle from moving backward, thereby securing the card without requiring direct engagement between the buckle and housing.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If the buckle portion is allowed to move freely to engage the card, then card insertion is simple, but the buckle can disengage under shock or wobble

Engineering Contradiction:

Improvecard insertion easeVSAvoidcard retention under shock

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The convexity structure adds a longitudinal dimension constraint to the buckle's movement. While the buckle can still move forward freely to engage the card's concavity (maintaining ease of insertion), the convexity blocks backward movement, preventing disengagement under shock or wobble (improving retention reliability).

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS7361035B1Card connector capable of preventing electronic card from accidental disengagement therefrom

Publication Date: 2008.04.22 TAI SOL ELECTRONICS

AI summary

A card connector capable of preventing a card from accidental disengagement therefrom includes a housing having a base plate, a stationary terminal area located at a first side of the base plate, and a slide channel located the base plate; a slide member slidably mounted in the slide channel; and an anti-run member having a main body, a fastening piece mounted on the slide member, and a buckle portion having an extension piece. A convexity is formed on the second side of the base plate and located close to the stationary terminal area. An opening is formed on the base plate and located in front of the convexity. In light of this, the convexity blocks the movement of the buckle portion toward the second side, thus securely locking the buckle portion in the concavity of the card and effectively preventing the card from backing and disengagement from the card connector.