Portable Display Hinge With Magnetic Screw Lift Synchronization

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Solution Overview

Problem

Existing portable electronic devices, such as notebook computers, lack operational convenience due to the need for manual operation to switch between different modes or viewing positions, as users must manually rotate the display and stand relative to the host body.

Innovation Solution

Integration of an automatic lifting mechanism using a magnetic driven component and a motorized screw rod with a magnetic screw thread, allowing the second body and stand to raise or lower synchronously relative to the first body, enabling effortless switching between operation modes without mechanical interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual operation is used to rotate the second body or stand, then the device structure remains simple, but the operational convenience deteriorates

Engineering Contradiction:
Improveoperational convenienceVSAvoiddevice structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces the traditional manual mechanical rotation system with a magnetic field-driven system. The magnetic driven component interacts with the magnetic screw thread portion through magnetic attraction and repulsion forces, eliminating the need for manual mechanical operation while achieving automated rotation and lifting of the second body and stand.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The magnetic driven component serves as an intermediary between the magnetic field (generated by the motor-driven magnetic screw thread) and the mechanical structure (second body and stand). This intermediary transfers magnetic energy to mechanical motion, enabling automated operation without direct mechanical contact or manual intervention.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If automatic lifting mechanism is integrated to drive second body and stand synchronously, then operational convenience improves, but device complexity increases

Engineering Contradiction:
Improveoperational convenienceVSAvoiddevice structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges the rotation and lifting functions into a single integrated magnetic driven system. The magnetic driven component simultaneously performs both rotation (through interaction with the magnetic screw thread) and lifting (through vertical movement along the magnetic screw thread), achieving synchronized movement of the second body and stand through one unified mechanism rather than separate systems.

Inventive Principle:
Principle #5Merging (Combining)

3Extent of automation

If motor and screw rod are used to drive magnetic screw thread portion, then automated operation is achieved, but use of energy increases

Engineering Contradiction:
Improveautomated operationVSAvoidenergy consumption
Core Design Contradiction:
Extent of automationVSUse of energy by moving object

Solution Approach 1:

The magnetic driven component utilizes magnetic field forces (attraction and repulsion) to drive its own movement along the magnetic screw thread. The system leverages the inherent magnetic properties of the materials and the magnetic field gradients to achieve automated operation without requiring additional actuators or energy-intensive mechanical drive mechanisms at the driven component location.

Inventive Principle:
Principle #25Self-service

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 automatic lifting mechanism enhances operational convenience by allowing seamless switching between modes without manual intervention, reducing mechanical stress and improving user experience through synchronized movement of the second body and stand relative to the first body.

Implementation Method 1

The magnetic driven component is magnetically attracted to the magnetic screw thread portion of the screw rod

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentUS12181928B2Portable electronic device
Publication Date: 2024.12.31 ACER INC
  • US12181928B2 patent drawing
  • US12181928B2 patent drawing
  • US12181928B2 patent drawing

AI summary

A portable electronic device including a first body, a driving source, a stand, a second body and a magnetic driven component is provided. The driving source is disposed in the first body and includes a motor and a screw rod coupled to the motor. The screw rod has a magnetic screw thread portion. The stand is pivoted to the first body, and the second body is pivoted to the stand. The magnetic driven component is disposed at a side of the second body and the magnetic driven component is magnetically attracted to the magnetic screw thread portion of the screw rod. The motor drives the screw rod to rotate and the magnetic screw thread portion drives the magnetic driven component slide on the first body. The second body and the magnetic driven component move synchronously and drive the stand rotate with respect to the first body.