Electronic Card Guiderail Latch for Secure Connector Alignment
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Solution Overview
Problem
Current server designs lack means to prevent misalignment and bad contact of electronic cards with card connectors, and to prevent loosening of electronic cards from guiderail assemblies.
Innovation Solution
An electronic card mounting structure with guiderails and a latch mechanism that includes a first and second guiderail defining a card accommodation space, and a latch mechanism with an operating portion and latch portion that elastically displaces between locking and unlocking positions to securely engage with notches on the electronic card, ensuring accurate and firm mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electronic cards are mounted in circuit boards through guiderail assemblies without additional fastening mechanisms, then the mounting process is simple and modular, but misalignment and bad contact of circuits occur
Solution Approach 1:
A latch mechanism is introduced as an intermediary component between the electronic card and the guiderail assembly. This latch mechanism includes a latch portion that engages with a notch on the electronic card and a biasing portion that provides continuous contact pressure, ensuring reliable alignment and preventing misalignment or bad contact while maintaining the simplicity of the overall mounting structure.
2Device complexity
If electronic cards are mounted in circuit boards through guiderail assemblies without additional fastening mechanisms, then the structure remains simple, but loosening of the electronic card from the guiderail assembly occurs
Solution Approach 1:
The latch mechanism serves as an intermediary fastening component that connects the electronic card to the guiderail assembly. The latch portion engages with the notch on the electronic card, while the biasing portion maintains continuous contact pressure, ensuring stable retention and preventing loosening without significantly increasing structural complexity.
Solution Approach 2:
The latch mechanism is pre-configured with the biasing portion that continuously exerts contact pressure on the electronic card during the mounting process. This preliminary action ensures that the card remains firmly retained in the guiderail assembly from the beginning, preventing loosening without requiring additional complex fastening steps.
3Reliability
If a latch mechanism is added to prevent misalignment and loosening, then reliability and stability are improved, but device complexity increases
Solution Approach 1:
The latch mechanism is merged with the existing guiderail assembly structure. The latch portion and biasing portion are integrated into the guiderail component, allowing the fastening function to be achieved without adding separate, independent fastening mechanisms. This merging approach improves reliability while minimizing the increase in device complexity.
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 ensures reliable and stable retention of electronic cards to the card connector, preventing movement and simplifying the mounting process while reducing production costs through fewer molds and simplified assembly steps.
Implementation Method 1
The latch mechanism is integrally formed and elastically connected with the first guiderail. The latch mechanism includes an operating portion and a latch portion. The latch portion is configured to be elastically displaced between a locking position, where the latch portion is disposed in the card accommodation space for engagement in the notch of the electronic card, and an unlocking position, where the latch portion is retracted away from the card accommodation space
Data Source
AI summary
A card connecting assembly mountable on a circuit board for insertion of an electronic card includes a card connector disposed on the circuit board, and an electronic card mounting structure having first and second guiderails for the electronic card to be slidably insertable thereinto, and a latch mechanism integrally formed and elastically connected with the first guiderail. The latch mechanism includes an operating portion and a latch portion. With the latch portion engaged in the notch when the electronic card is inserted into the card connector to prevent removal thereof. Through the operating portion operably and elastically displaced away from the first guiderail, the latch portion is disengageable from the notch, the electronic card is permitted to be removed from the card connector.