Automatic Cover Locking Module for Electronic Devices

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Solution Overview

Problem

Conventional electronic device housing structures require manual affixing of the cover to the case using screws or latches, which is inconvenient for users.

Innovation Solution

A locking module with a base, latch, and rotational member that automatically locks the cover to the case using elastic elements and a wedging mechanism, allowing the cover to be securely attached without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual affixing of cover to case using screws or latches is used, then secure connection is achieved, but user convenience deteriorates

Engineering Contradiction:

Improveconnection stabilityVSAvoiduser convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The locking module enables the cover and case to lock automatically through a self-service mechanism. When the cover is attached to the case, the sliding member automatically slides from the first position to the second position, causing the protrusion to wedge into the case and secure the connection without requiring any manual operation from the user.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The elastic element pre-loads the sliding member in the first position before the cover is fully attached. This preliminary positioning ensures that as soon as the cover makes contact with the case, the sliding member is ready to automatically transition to the locked position, eliminating the need for manual intervention.

Inventive Principle:

Principle #10Preliminary action

2Ease of operation

If automatic locking mechanism is implemented, then user convenience is improved, but device complexity increases

Engineering Contradiction:

Improveautomatic lockingVSAvoidlocking module structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The locking module is segmented into distinct functional components: a base, a sliding member with protrusion, and an elastic element. This segmentation allows each component to perform its specific function independently while working together as a cohesive automatic locking system, making the complex mechanism more manageable and maintainable.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The sliding member acts as an intermediary between the cover and case, mediating the locking action. When the cover is attached, the sliding member automatically transitions positions and uses its protrusion to wedge into the case, providing the locking function without requiring direct mechanical fastening between the cover and case.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If rotational member with detachable connection is used, then flexibility is improved, but manufacturing complexity increases

Engineering Contradiction:

Improvedetachable connectionVSAvoidmanufacturing complexity

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The rotational member provides dynamic adaptability by allowing the end portion to be detachably connected to the recess. This dynamic connection enables the locking module to adapt to different assembly requirements and facilitates easier manufacturing and assembly processes compared to permanent rigid connections.

Inventive Principle:

Principle #15Dynamics

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 locking module enhances user convenience by enabling automatic attachment and secure locking of the cover to the case, reducing manual effort and ensuring a stable connection.

Implementation Method 1

a first elastic element, the first elastic element applies a first elastic force to the rotational member, and the rotational member tends to return to the first rotational member position due to the first elastic force

Methodology Applied

Scientific EffectElastic force: Elasticity

Implementation Method 2

a second elastic element, the second elastic element applies a second elastic force to the latch, and the latch tends to return to the second latch position due to the second elastic force

Methodology Applied

Scientific EffectElastic force: Elasticity

Implementation Method 3

the end portion is separated from the recess, and the protrusion is wedged into the case

Methodology Applied

Scientific EffectWedge: Wedge

Data Source

PatentUS11382226B2Electronic device and housing structure and locking module thereof

Publication Date: 2022.07.05 WISTRON CORP

AI summary

An electronic device is provided. The electronic device includes a case, a mainboard, a cover and a locking module. The mainboard is disposed in the case. The cover covers the case. The locking module is disposed on the cover. The locking module includes a base, a latch, and a rotational member. The base is affixed to the cover. The latch is connected to the base, wherein the latch is moved between the first latch position and the second latch position relative to the base. The latch includes a recess and a protrusion. The rotational member is connected to the base. The rotational member is moved between the first rotational member position and the second rotational member position relative to the base. The rotational member includes a end portion, and the end portion is detachably connected to the recess. The locking module provides an automatic locking function.