Sliding Card Connector Structure for Insertion Alignment
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Solution Overview
Problem
Existing connectors in mobile devices fail to maintain stable connections for electronic cards due to deviations during insertion, leading to unstable connections.
Innovation Solution
A card connector design featuring an insulating base with side arms, elastic arms, and a pushing device that corrects the position of the sliding seat to prevent deviation, using locking devices and a connecting mechanism to secure the sliding seat in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional connector design is used, then the structure is simple, but the sliding seat deviates to the left or right during insertion, causing unstable connections
Solution Approach 1:
The connector is divided into multiple functional components: an insulating base with side arms, a shell with locking devices, and a sliding seat with positioning features. Each component has specific functions that work together to achieve stable connection while managing complexity through modular design.
Solution Approach 2:
The side arms are extended from two sides of the insulating base to provide asymmetric support and positioning. The locking devices on the shell engage with corresponding slots on the side arms in an asymmetric manner to prevent left-right deviation of the sliding seat during insertion.
2Reliability
If elastic arms are made longer to improve locking capability, then the locking effect is enhanced, but elastic fatigue increases due to frequent movements
Solution Approach 1:
The elastic arms are pre-configured with folded end portions that act as cushioning elements. These folded portions absorb stress and reduce the impact of frequent movements, preventing elastic fatigue while maintaining effective locking capability throughout the service life of the connector.
3Ease of operation
If the sliding seat is allowed to move freely during insertion, then the ease of operation is improved, but the position deviation to the left or right occurs, reducing connection stability
Solution Approach 1:
The side arms and locking devices are pre-positioned to guide the sliding seat during insertion. The locking devices automatically engage with the side arms as the sliding seat is inserted, preliminarily establishing the correct position and preventing left-right deviation before the insertion is complete.
Solution Approach 2:
The side arms act as intermediary elements between the shell and the sliding seat. They transmit and distribute the insertion force evenly, mediating the interaction between the moving sliding seat and the fixed shell to maintain stability while allowing smooth operation.
4Reliability
If the elastic arms are constrained to reduce outward movement, then the left and right movement of the sliding seat is reduced, but the complexity of the insulating base increases
Solution Approach 1:
The folded end portions of the elastic arms are integrated directly into the insulating base structure. This merging of the elastic arm anchoring function into the base itself provides constraint and position stability without adding separate complex components, maintaining simplicity while achieving the desired stability.
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 design ensures stable card insertion and reduces elastic fatigue by maintaining the position of the sliding seat, enhancing connection stability and reducing mechanical wear.
Implementation Method 1
Each locking device comprises an elastic arm extended downwardly from said shell in a curved manner and buckled into one respective storage slot
Implementation Method 2
each elastic arm of the insulating base comprises two folded end portions respectively extended from two sides thereof and connected to the shell
Data Source
AI summary
A card connector includes an insulating base having an accommodating space inside and two side arms located on both sides and respectively provided with a storage slot, a shell covering the insulating base and having two locking devices respectively provided with an elastic arm extended downwardly from said shell in a curved manner and buckled into one respective storage slot, and a sliding seat having a seat body with a receiving slot for accommodating a preset electronic card and two first recesses provided on two opposite side edges for the positioning of the elastic arms respectively. After the sliding seat is pushed in, the elastic arms of the shell are positioned at the first recesses at the same time to achieve the effect of correcting the position of both sides of the sliding seat without deviation to the left or right.