Elastic Sealing Member for Chip Card Pin Hole Protection

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Solution Overview

Problem

Chip cards in portable electronic devices are prone to damage due to contamination from outside elements like water, vapor, or dust entering through the pin hole used for ejection, which compromises the internal electronic components.

Innovation Solution

A chip card holder design featuring a tray with an elastic portion and a protecting member made of rubber, which seals the pin hole and prevents contamination by compressing and resisting external elements, ensuring the chip card can be safely inserted and removed without exposing the device to harmful substances.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a pin hole is provided in the casing for ejecting the chip card, then the chip card can be easily removed, but outside contamination such as water, vapor or dust can enter the portable electronic device through the pin hole

Engineering Contradiction:

Improvechip card ejectionVSAvoidcontamination entry

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

A protecting member made of elastic material is introduced as an intermediary component. This protecting member selectively covers the pin hole and includes a receiving slot that communicates with the pin hole. The receiving slot is configured to receive a pin for ejecting the chip card, allowing the pin to pass through the protecting member to eject the chip card while the protecting member blocks contamination from entering through the pin hole.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The protecting member is made of elastic material that can deform to accommodate the pin during chip card ejection. The elastic material allows the protecting member to flexibly cover the pin hole while still permitting the pin to pass through the receiving slot to eject the chip card, maintaining both protection and functionality.

Inventive Principle:

Principle #30Flexible shells and thin films

2Object-affected harmful factors

If the pin hole is sealed to prevent contamination, then internal electronic elements are protected, but the chip card cannot be ejected using a pin

Engineering Contradiction:

Improvecontamination preventionVSAvoidchip card ejection

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The protecting member transitions from a static sealed state to a dynamic state during chip card ejection. The receiving slot is configured to receive the pin, and the elastic material allows temporary deformation to accommodate the pin's passage, enabling ejection functionality while maintaining overall seal integrity.

Inventive Principle:

Principle #15Dynamics

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 water, vapor, and dust from entering the device, protecting the internal electronic elements and ensuring reliable operation of the chip card holder in portable electronic devices.

Implementation Method 1

The mounting member includes a mounting portion and an elastic portion. The elastic portion is positioned at a side of the mounting portion adjacent to an entrance of the receiving recess and configured to resist the protecting member and enable the tray and chip card to be ejected from the chip card holder.

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

a protecting member made of rubber, which seals the pin hole and prevents external contaminants from entering by using a compressible mechanism

Methodology Applied

Scientific EffectElastic sealing: Elasticity

Data Source

PatentUS9436896B2Chip card holder and portable electronic device with same

Publication Date: 2016.09.06 CHIUN MAI COMM SYST INC

AI summary

A chip card holder includes a tray and a protecting member. The tray includes a receiving portion and a handle portion. The receiving portion is configured to receive a chip card. The handle portion is positioned at a side of the receiving portion. The protecting member is sleeved on the receiving portion and resists the handle portion. The protecting member is made of elastic material so as to prevent outside contamination from entering the chip card holder.