Tool-Less Sliding Fixing Module for Fast Electronic Device Mounting

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Solution Overview

Problem

The assembly and removal of electronic devices from equipment cases are inefficient due to the need for screw alignment and screw-based fastening, which is time-consuming and inconvenient.

Innovation Solution

A tool-less fixing module comprising a base, a sliding member, and a resilient element with a locking pin that allows for secure attachment and detachment of electronic devices to a case without using tools, utilizing restricting structures and identification marks for easy operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If screws are used to fasten the electronic device to the case, then the connection strength is improved, but the assembly time and operational convenience deteriorate

Engineering Contradiction:
Improveconnection strengthVSAvoidassembly time
Core Design Contradiction:
StrengthVSLoss of time

Solution Approach 1:

The fastening function is segmented into multiple locking pins that can engage independently with mounting holes, allowing parallel fastening action that reduces assembly time while maintaining connection strength

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking pins are designed to be self-aligning and self-latching, automatically engaging with the mounting holes without requiring precise manual alignment or external tools, thereby reducing assembly time while ensuring secure connection

Inventive Principle:
Principle #25Self-service

2Reliability

If screws are used to fasten the electronic device to the case, then the connection reliability is improved, but the ease of operation deteriorates

Engineering Contradiction:
Improveconnection reliabilityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking mechanism is designed to be self-operating, where the locking pins automatically engage and lock into place without requiring user intervention for alignment or tool operation, greatly improving ease of operation while maintaining reliability

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Instead of requiring active screw tightening motion, the mechanism uses passive elastic deformation of the locking pins that automatically engage with mounting holes, inverting the traditional fastening approach to improve operational ease

Inventive Principle:
Principle #13The other way round (Inversion)

3Strength

If multiple locking pins are used to secure the electronic device, then the connection strength is improved, but the device complexity increases

Engineering Contradiction:
Improveconnection strengthVSAvoiddevice complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

Multiple locking pins are integrated into a single base structure, where the pins are formed as unified elastic elements rather than separate components, reducing assembly steps and overall device complexity while maintaining multi-point secure connection

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The locking pins serve multiple functions simultaneously: they provide mechanical fastening, self-alignment through elastic deformation, and automatic latching, eliminating the need for separate alignment features or adjustment mechanisms and thereby reducing device complexity

Inventive Principle:
Principle #6Universality (Multi-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

Facilitates quick and convenient assembly and removal of electronic devices without tools, reducing assembly time and labor, and eliminating the risk of lost screws or mechanical noise from screw handling.

Implementation Method 1

The resilient element located between the base and the sliding member includes at least one pressing portion

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS8191842B2Fixing module
Publication Date: 2012.06.05 ASUSTEK COMPUTER INC
  • US8191842B2 patent drawing
  • US8191842B2 patent drawing
  • US8191842B2 patent drawing

AI summary

A fixing module and a case having the fixing module are provided. The case includes a plate having at least one first mounting hole, and a fixing module. The fixing module is used to fix an electronic device to the plate. The electronic device has at least one second mounting hole corresponding to the first mounting hole. The fixing module includes a base, a sliding member, and at least one resilient element. The base is mounted to the plate. The sliding member is movably disposed on the base. The resilient element located between the base and sliding member includes at least one pressing portion and at least one locking pin located on the pressing portion. When the sliding member is in a locking position, the sliding member presses the pressing portion such that the locking pin passes through the first mounting hole and inserts into the second mounting hole.