M.2 Interface Card Clamping Assembly for Tool-Free Fastening

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Solution Overview

Problem

The existing methods for fixing M.2 interface cards on motherboards require tool usage for assembly and disassembly, making it inconvenient and prone to errors, especially if screws are lost during assembly.

Innovation Solution

An interface card assembly that includes a heat dissipation plate and a fastener with a clamping part, allowing the M.2 interface card to be clamped between the main body and the cantilever of the fastener, enabling tool-free assembly and disassembly with bare hands.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If screw fastening is used to fix the M.2 interface card, then the connection stability is improved, but the ease of operation deteriorates due to requiring tools for assembly and disassembly

Engineering Contradiction:
Improveconnection stabilityVSAvoidease of operation
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The fastener employs a dynamic clamping mechanism where the elastic component enables the clamping portion to flexibly adapt to the M.2 interface card during insertion, providing secure fixation without requiring tools. The elastic deformation allows the fastener to transition between open and closed states, maintaining stability while enabling easy operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The fastener is designed with a self-locking feature where the elastic component automatically engages with the positioning structure upon insertion, securing the M.2 interface card without requiring additional fastening actions or tools. The user simply needs to insert the card, and the fastener self-activates to provide secure fixation.

Inventive Principle:
Principle #25Self-service

2Reliability

If screw fastening is used to fix the M.2 interface card, then the connection reliability is improved, but the loss of time increases due to tool usage and assembly complexity

Engineering Contradiction:
Improveconnection reliabilityVSAvoidloss of time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The fastener is pre-configured with the elastic component and clamping portion in a ready-to-engage state before the M.2 interface card is inserted. The positioning structure is预先 designed to automatically align with the card's connecting end, eliminating the need for time-consuming alignment and fastening operations while ensuring reliable connection from the moment of insertion.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The dynamic elastic mechanism allows the fastener to rapidly transition from an open to a locked state during insertion, providing both speed and reliability. The elastic deformation occurs instantaneously upon contact, securing the connection in a single motion without requiring multiple steps or tools, thus reducing time loss while maintaining connection reliability.

Inventive Principle:
Principle #15Dynamics

3Force

If a traditional fastening mechanism is used, then the clamping force is sufficient, but the device complexity increases due to additional components and assembly steps

Engineering Contradiction:
Improveclamping forceVSAvoiddevice complexity
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The fastener is segmented into distinct functional portions: the clamping portion, the elastic component, and the positioning structure. This segmentation allows each part to perform its specific function efficiently, generating sufficient clamping force through the elastic component's deformation while keeping the overall structure simple and easy to assemble into the heat dissipation plate.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention extracts the essential fastening function from complex traditional mechanisms, isolating only the necessary elements (clamping portion and elastic component) to achieve sufficient clamping force. By removing unnecessary components and simplifying the structure to include only the critical elements, the device complexity is reduced while maintaining adequate clamping capability.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS12237618B2Interface card assembly and circuit board module using the same
Publication Date: 2025.02.25 ASUSTEK COMPUTER INC
  • US12237618B2 patent drawing
  • US12237618B2 patent drawing
  • US12237618B2 patent drawing

AI summary

An interface card assembly adapted for fixing an M.2 interface card to a circuit board body with an M.2 connector is provided. The M.2 interface card includes a connecting end and an end. The interface card assembly includes a heat dissipation plate and a fastener. The heat dissipation plate is disposed at a position adjacent to the M.2 connector, and the heat dissipation plate includes a hole. The fastener is detachably disposed in the hole. The fastener includes a main body and a cantilever, and a clamping part is disposed between the main body and the cantilever. When the M.2 interface card is inserted into the M.2 connector through the connecting end, the fastener moves relative to the heat dissipation plate at the end, so that the M.2 interface card extends into the clamping part and is clamped between the main body and the cantilever.