Locking Mechanism for Electronic Device Shells

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current locking mechanisms for electronic devices, such as notebook computers, are complex and costly, making it difficult to quickly and easily lock or release the outer shell from the frame, which hinders the ability to change the shell's color and pattern according to user preferences.

Innovation Solution

A simple locking mechanism comprising a frame, a locking element with a hook-engaging portion and a release button, and a return spring system that allows for quick engagement and disengagement of the outer shell, facilitated by a slide or lever mechanism and return springs, enabling easy locking and unlocking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional locking mechanism is used, then the outer shell can be locked to the frame, but the structure becomes complex and production cost increases

Engineering Contradiction:
Improvelocking stabilityVSAvoidmechanism structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking mechanism is divided into independent functional components: a locking element with a hook-engaging portion for securing the outer shell, and a separate release button mechanism for actuation. This segmentation allows each component to be optimized independently, reducing overall complexity while maintaining reliable locking function.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The release button is extracted as a separate controllable element from the locking element itself. This allows the locking element to focus solely on the locking function while the release button provides independent control, simplifying the overall structure by separating control from execution functions.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If a conventional locking mechanism is used, then the outer shell can be locked to the frame, but the operation becomes time-consuming and difficult

Engineering Contradiction:
Improvelocking stabilityVSAvoidlocking speed
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking element features a self-locking design where the hook-engaging portion automatically engages with the outer shell when the release button is not actuated. The return spring automatically returns the locking element to the locked position after release, eliminating the need for manual intervention to maintain the locked state and enabling quick operation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The locking element is pre-positioned by the return spring in the locked position, ready to engage the outer shell immediately. When the release button is pressed, the locking element is pre-configured to quickly disengage and return to the locked position, enabling rapid locking and unlocking operations without complex manual manipulation.

Inventive Principle:
Principle #10Preliminary action

3Ease of manufacture

If a simple locking mechanism is used, then production cost is reduced, but the locking stability may be compromised

Engineering Contradiction:
Improveproduction costVSAvoidlocking stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The locking mechanism uses simple, easily manufactured components such as a basic hook-shaped locking element and a straightforward release button structure. These components can be produced through simple molding or machining processes, significantly reducing production costs while maintaining sufficient locking stability for the application.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The return spring acts as an intermediary element that provides the necessary force to maintain the locking element in the locked position and to return it after release. This simple mechanical intermediary ensures reliable locking stability without requiring complex active control systems or additional expensive components.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 mechanism allows for rapid and stable locking and unlocking of the outer shell, reducing production costs and enabling easy customization of the shell's color and pattern, enhancing user convenience.

Implementation Method 1

The locking mechanism further includes a first return spring to bias the hook-engaging portion to move toward the through hole for engaging the engaging piece of the outer shell

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The release button is operable to push the contact portion, which in turn moves the hook-engaging portion to disengage from the engaging piece

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentUS8649175B2Locking mechanism and an electronic device having the same
Publication Date: 2014.02.11 WISTRON CORP
  • US8649175B2 patent drawing
  • US8649175B2 patent drawing
  • US8649175B2 patent drawing

AI summary

A locking mechanism for locking an outer shell includes a frame adapted to be stacked with an outer shell and having a through hole for extension of an engaging piece of the outer shell therethrough, a locking element disposed movably on the frame, and a release button disposed slidably on the frame. The locking element has a hook-engaging portion, and a contact portion opposite to the hook-engaging portion. The hook-engaging portion is extendable to the through hole for engaging releasably the engaging piece. The release button has one end abutting against the contact portion. The release button is operable to push the contact portion, which in turn moves the hook-engaging portion to disengage from the engaging piece.