Electronic Card Connector Cover Fastening Mechanism
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Solution Overview
Problem
The existing fastening structures in electronic card connectors for portable devices are prone to unintended release during drop tests, leading to potential electronic card ejection when users attempt to change the battery, compromising the reliability of these devices.
Innovation Solution
An electronic card connector design featuring a base, a pivoted cover, and a limiting element with an elastic arm and limiting blocks that transitions between unstressed and stressed states, preventing the cover from moving from the fastening to the release position, thereby enhancing the secure fastening strength between the cover and base.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a simple fastening structure is used between the base and cover, then the device complexity is reduced and ease of manufacture is improved, but the reliability deteriorates as the fastening connection may release unexpectedly during drop tests
Solution Approach 1:
The patent employs a dynamic limiting element with an elastic arm that can transition between different states (engaged and disengaged) to control the cover's movement. This dynamic mechanism ensures the cover remains securely fastened during normal use and drop tests, while still allowing intentional opening by the user, thus resolving the contradiction between reliability and operational flexibility.
Solution Approach 2:
The limiting element is pre-configured to prevent the cover from moving from the closed position to the open position during unexpected events such as drop tests. The elastic arm and limiting block are designed to engage with the base structure beforehand, creating a preliminary protective action that counteracts the harmful effect of accidental opening before it can occur.
2Reliability
If a robust fastening structure with limiting element is added, then the reliability is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The limiting element utilizes an elastic arm that functions as a flexible component, allowing it to deform and return to its original shape. This flexibility enables the limiting element to be integrated into the existing connector structure without requiring additional complex assembly steps, thereby maintaining ease of manufacture while improving reliability.
Solution Approach 2:
The limiting element is divided into distinct functional components: the elastic arm for providing restoring force, the limiting block for engaging with the base, and the connecting structure for attachment to the cover. This segmentation allows each component to be manufactured separately using standard processes and then assembled, simplifying the overall manufacturing process despite the added functionality.
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 enhanced fastening mechanism ensures the cover remains fixed at the fastening position during drop tests, improving the reliability and durability of the electronic card connector, allowing it to meet stringent drop test standards.
Implementation Method 1
The limiting element is connected to the cover and has an unstressed state and a stressed state relative to the cove. The limiting element comprises an elastic arm and at least one limiting block. When the elastic arm is in the unstressed state, the position of the at least one block is above the cover. When the elastic arm is in the stressed state, the position of at least a part of the at least one limiting block is below the cover.
Data Source
AI summary
An electronic card connector comprises a base, a cover and a limiting element. The base has an electronic card holder for holding an electronic card. The cover is pivoted on the base so that the cover is able to be operated in an open state and a close state relative to the base. When in the close state, the cover is configured for sliding relative to the base and therefore has a fastening position and a release position. The limiting element is connected to the cover and has an unstressed state and a stressed state relative to the cover. The limiting element comprises an elastic arm and at least one limiting block. The elastic arm is connected to the cover via a connecting end while the at least one limiting block is connected to an end other than the connecting end of the elastic arm.